CN114851026B

CN114851026B - Special fixture for cylindrical bearing retainer

Info

Publication number: CN114851026B
Application number: CN202210467662.4A
Authority: CN
Inventors: 郑广会; 赵培振; 郑世育
Original assignee: Shandong Golden Empire Precision Machinery Technology Co Ltd
Current assignee: Shandong Golden Empire Precision Machinery Technology Co Ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2023-07-25
Anticipated expiration: 2042-04-29
Also published as: CN114851026A

Abstract

The invention relates to the field of bearing production, in particular to a special clamp for a cylindrical bearing retainer, which comprises a clamping seat, wherein a pushing piece is arranged in the middle of the upper end of the clamping seat, the end part of the pushing piece is connected with a clamping piece, a top piece is arranged at the edge of the upper end of the clamping seat, the axial lead of the top piece is collinear with the axial lead of the clamping piece, a mounting hole is formed in the corner of the upper end face of the clamping seat in a penetrating way, and the top piece is connected with the pushing piece. The invention can improve the convenience of clamping the retainer, can ensure more labor saving during clamping, and can improve the protection force of the retainer during clamping and the stability of clamping.

Description

Special fixture for cylindrical bearing retainer

Technical Field

The invention relates to the field of bearing production, in particular to a special clamp for a cylindrical bearing retainer.

Background

Bearings are an important component in contemporary mechanical devices. The main function of the cylindrical bearing retainer is to support the mechanical rotating body, reduce the friction coefficient in the moving process of the mechanical rotating body and ensure the rotation precision of the mechanical rotating body, wherein the cylindrical bearing retainer needs to be clamped by a clamp when the end face is polished, however, the clamping force of the clamp is not easy to control in the clamping process, so that the clamping force of the retainer is easy to be overlarge in the clamping process, and the retainer deformation phenomenon caused by overlarge clamping force, namely the retainer is poorer in protection force during clamping.

Disclosure of Invention

The invention aims to solve the defects in the background art and provides a special clamp for a cylindrical bearing retainer.

In order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides a cylinder bearing holder special fixture, includes the cassette, the upper end mid-mounting of cassette has the impeller, the end connection of impeller has the holder, the top piece is installed to the upper end edge of cassette, the axial lead of top piece and the axial lead collineation of holder, the up end corner of cassette has run through and has seted up the mounting hole, the top piece is connected with the impeller.

Preferably, the pushing piece comprises a threaded rod arranged in the middle of the upper end of the clamping seat, threads at two ends of the threaded rod are symmetrically arranged, two groups of threaded rings are symmetrically screwed on the outer surface of the threaded rod, two groups of pushing seats are respectively inlaid on the outer surfaces of the threaded rings, two groups of opposite surfaces of the pushing seats are respectively connected with two groups of connecting and fixing plates, and a first hand wheel is coaxially and fixedly arranged at the end part of the threaded rod.

Preferably, the middle part fixed mounting of up end of cassette has the fixed plate, the up end of fixed plate extends there is the fixing base, the threaded rod runs through and rotates and inlay in the inside of fixing base, the corner between fixed plate and the fixing base is inlayed and is had the enhancement piece, the side extension of cassette has the bearing frame, the tip and the threaded rod rotation of bearing frame are connected, the side symmetry slope of linking the fixed plate extends there are two sets of component framves, the tip and the pushing away seat fixed connection of component frame.

Preferably, the clamping piece comprises a pushing ring embedded at two ends of the connecting and fixing plate, a directional column is mounted in the pushing ring in a fitting mode, a connecting and fixing block is embedded at one end of the directional column, the clamping ring is mounted at the end of the connecting and fixing block, a spring body is wound on the outer side of the directional column and located between the side face of the connecting and fixing block and the side face of the pushing ring, the directional column and the connecting and fixing block are integrally formed, and a limiting disc is coaxially embedded at the other end of the directional column.

Preferably, the number of the clamping rings is two, the two clamping rings are symmetrically arranged, two groups of protruding lugs are respectively embedded at the end parts of the clamping rings, one group of protruding lugs penetrate through and are embedded with threaded sleeves, a jacking stud is screwed in the threaded sleeves, one end of the jacking stud is coaxially embedded with a jacking disc, the jacking disc is attached to the side surface of the other group of protruding lugs, a second hand wheel is coaxially and fixedly arranged at the other end of the jacking stud, the jacking piece comprises two groups of protruding seats symmetrically extending at the front edge and the rear edge of the upper end face of the clamping seat, a top frame disc is arranged above the protruding seats, four groups of limiting lugs extend in an annular array on the upper end face of the top frame disc, a retainer is attached to the upper end face of the top frame disc, the limiting lugs are attached to holes of the retainer, the upper end face of the limiting lugs is lower than the upper end face of the retainer, and the inner outer surface of the clamping ring is clamped on the outer surface of the retainer.

Preferably, the edge of the upper end face of the limiting lug is provided with an inclined plane, the axial lead of the top frame disc is collinear with the axial lead of the clamping ring, the upper end face of the extending seat is obliquely extended with a supporting seat, the end part of the supporting seat is fixedly connected with the lower end face of the top frame disc, the lower end face of the clamping ring is higher than the upper end face of the top frame disc, and the top frame disc and the limiting lug are integrally formed.

Preferably, the side of stretching out the seat extends has the direction arris pole, the outside of direction arris pole is provided with the slip guide frame, the slip guide frame is connected with pushing away the seat, the upper and lower terminal surface edge of slip guide frame punishment do not has two sets of roof grooves, two sets of roof grooves's inside is installed two sets of roof guide pulley respectively, two sets of roof guide pulley laminating respectively in the upper and lower terminal surface department of direction arris pole, the side groove has been seted up to the side edge of slip guide frame, the internally mounted in side groove has the side guide pulley, the side guide pulley laminates with direction arris pole mutually.

Preferably, the connecting seat is installed to the front and back terminal surface of pushing away the seat, the connecting seat is downward sloping setting, the tip and the smooth guide frame fixed connection of connecting seat, the inside in roof groove is inlayed and is had the roof wheel axle, the roof guide pulley rotates and installs in the surface of roof wheel axle, the inside in side groove is inlayed and is had the side wheel axle, the side guide pulley rotates and inlays in the surface of side wheel axle.

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

1. through the impeller that sets up, can directly rotate the threaded rod, with utilize the threaded rod upper both ends screw thread to be the effect that the symmetry set up down drive two sets of screwed rings and remove in opposite directions, and then drive two sets of pushing away the seat and remove in opposite directions, smooth guide frame is removed on the direction arris pole this moment, in order to lead the pushing away the seat that removes, with order to order about two sets of clamping rings synchronous remove the centre gripping in opposite directions at the surface of holder, in order to accomplish the centre gripping to the holder fixedly, with this centre gripping convenience that improves the holder, and smooth guide frame when removing on the direction arris pole, top guide pulley and side guide pulley can laminate and roll on the direction arris pole, in order to reduce the frictional force between direction arris pole and the smooth guide frame, make more laborsaving when rotating the threaded rod, the benefit of more laborsaving when having guaranteed the centre gripping promptly.

2. Through the holder that sets up, can rotate the top and move the double-screw bolt, make top move the dish and move under the screw thread effect between double-screw bolt and the thread bush, with prop the top on stretching out the ear, with spacing to the interval between two sets of stretching out the ear, make the gripping ring after removing the holder centre gripping, top move the dish and can push out on stretching out the ear, let two sets of gripping rings unable continuous in-phase removal, the produced power that moves of threaded rod rotation is offset by the spring body simultaneously, in order to avoid the back of centre gripping because of the gripping ring continues to remove and cause the holder to appear deformation damage because of bearing too big clamping force, the dynamics of protecting the holder when this improvement centre gripping.

3. Through the top piece that sets up, can utilize the roof-rack dish to prop the holder of centre gripping between two sets of holding rings, make the in-process holder that carries out the coping processing to the terminal surface of holder can not appear the gliding phenomenon, and the roof-rack dish is propped the holder and in limiting the lug can get into the hole on the holder to restrict the holder, make the rotation phenomenon can not appear at the in-process holder that carries out the coping processing to the terminal surface of holder, with this steadiness that improves the centre gripping.

Drawings

FIG. 1 is a schematic view of a special fixture for a cylindrical bearing retainer according to the present invention;

FIG. 2 is a schematic view of a guide rib of a special fixture for a cylindrical bearing retainer of the present invention;

FIG. 3 is a schematic view of a holder for a cylindrical bearing retainer according to the present invention;

FIG. 4 is a schematic diagram of a top-drive stud of a special fixture for a cylindrical bearing retainer of the present invention;

FIG. 5 is a schematic view of a slide guide frame of a special clamp for a cylindrical bearing retainer according to the present invention;

fig. 6 is a view showing the use of a special jig for a cylindrical bearing holder of the present invention.

In the figure: 1. a clamping seat; 2. a protruding seat; 3. a guide rib; 4. a carrier; 5. a threaded rod; 6. a first hand wheel; 7. a directional column; 8. a fixing seat; 9. a top tray; 10. limiting the bump; 11. pushing the stud; 12. a top movable disk; 13. extending the ear; 14. a thread sleeve; 15. a second hand wheel; 16. a clamping ring; 17. a connecting and fixing block; 18. pushing the ring; 19. a spring body; 20. a connecting plate; 21. a component force frame; 22. pushing the base; 23. a threaded ring; 24. a connecting seat; 25. a sliding guide frame; 26. a top groove; 27. a top wheel shaft; 28. a top guide wheel; 29. a side groove; 30. a side wheel axle; 31. a side guide wheel; 32. a fixing plate; 33. a reinforcing sheet; 34. a support base; 35. a retainer; 36. and a limiting disc.

Detailed Description

The following description is presented to enable one of ordinary skill in the art to make and use the invention. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art.

The special clamp for the cylindrical bearing retainer comprises a clamping seat 1, wherein a pushing piece is arranged in the middle of the upper end of the clamping seat 1, the end part of the pushing piece is connected with a clamping piece, a top piece is arranged at the edge of the upper end of the clamping seat 1, the axial lead of the top piece is collinear with the axial lead of the clamping piece, a mounting hole is formed in the corner of the upper end face of the clamping seat 1 in a penetrating manner, and the top piece is connected with the pushing piece.

The pushing piece is including installing the threaded rod 5 at the upper end middle part of holder 1, the both ends screw thread of threaded rod 5 is the symmetry setting, the surface symmetry of threaded rod 5 is screwed and is had two sets of screwed rings 23, cooperation between screwed rings 23 and the threaded rod 5 plays the effect that drives two sets of pushing seats 22 and remove in opposite directions, the surface of two sets of screwed rings 23 is inlayed respectively and is had two sets of pushing seats 22, the opposite face of two sets of pushing seats 22 is connected with two sets of even fixed plate 20 respectively, even fixed plate 20 plays the fixed effect of connection, the coaxial fixed mounting of tip of threaded rod 5 has a hand wheel 6, hand wheel 6 plays the effect of being convenient for carry out pivoted to threaded rod 5.

The middle part fixed mounting of up end of holder 1 has fixed plate 32, fixed plate 32 plays the effect of fixing base 8, the up end of fixed plate 32 extends there is fixing base 8, fixing base 8 plays the effect of connecting threaded rod 5, threaded rod 5 runs through and rotationally inlays in fixing base 8's inside, the corner between fixed plate 32 and the fixing base 8 has inlayed the reinforcement piece 33, reinforcement piece 33 plays the effect of improving joint strength between fixed plate 32 and the fixing base 8, the side of holder 1 extends there is carrier 4, the tip and the threaded rod 5 rotation of carrier 4 are connected, carrier 4 plays the effect of improving the joint dynamics to threaded rod 5, the side symmetry slope of linking solid board 20 extends there are two sets of component frame 21, component frame 21's tip and push away seat 22 fixed connection, component frame 21 plays the effect of evenly acting on linking solid board 20 with the thrust.

The clamping piece includes the push ring 18 of inlaying at the both ends that link the fixed plate 20, the directional post 7 is installed in the laminating of push ring 18's inside, push ring 18 plays the effect of promoting grip ring 16, link fixed block 17 is inlayed to directional post 7's one end, the grip ring 16 is installed to the tip of linking fixed block 17, link fixed block 17 and play the effect of fixing directional post 7 and grip ring 16 together, the outside winding of directional post 7 has spring body 19, directional post 7 plays the effect of direction, spring body 19 is located between the side of linking fixed block 17 and the side of push ring 18, directional post 7 and even fixed block 17 integrated into one piece, the coaxial limit disk 36 of inlaying of the other end of directional post 7, spring body 19 can take place the deformation in order to offset the thrust that the threaded rod 5 continued to rotate produced after the centre gripping, limit disk 36 plays spacing effect.

The clamping rings 16 are in two groups, the clamping rings 16 in two groups are symmetrically arranged, the two groups of protruding lugs 13 are respectively embedded at the end parts of the clamping rings 16 in two groups, a threaded sleeve 14 is embedded in a penetrating manner at the side surface of one group of protruding lugs 13, a jacking stud 11 is screwed in the threaded sleeve 14, the jacking stud 11 and the threaded sleeve 14 are matched to adjust the position of the jacking disc 12, one end of the jacking stud 11 is coaxially embedded with the jacking disc 12, the jacking disc 12 plays a role of jacking, the jacking disc 12 is attached to the side surface of the other group of protruding lugs 13, a second hand wheel 15 is coaxially and fixedly arranged at the other end of the jacking stud 11, the second hand wheel 15 plays a role of facilitating rotation of the jacking stud 11, the jacking piece comprises two groups of protruding seats 2 symmetrically extending at the front edge and the rear edge of the upper end surface of the clamping seat 1, a jacking disc 9 is arranged above the jacking disc 9, the annular array of the upper end surface of the jacking disc 9 extends with four groups of limiting lugs 10, the protruding seats 2 play a role of connection, the upper end surface of the jacking disc 9 is attached to the upper end surface of the jacking disc 35, the other end of the jacking disc 9 is attached to the upper end surface of the clamping disc 35 is attached to the inner surface of the clamping ring 35, the clamping ring 35 is attached to the inner surface of the clamping ring 35, and the clamping ring 35 is prevented from rotating.

The upper end face edge of restriction lug 10 is offered to the inclined plane, in the inclined plane can be convenient for restriction lug 10 gets into the hole on the holder 35, the axial lead of roof-rack dish 9 and the axial lead collineation of grip ring 16, the up end slope of stretching out seat 2 extends there is supporting seat 34, the tip and the lower terminal surface fixed connection of roof-rack dish 9 of supporting seat 34, the lower terminal surface of grip ring 16 is higher than the up end of roof-rack dish 9, roof-rack dish 9 and restriction lug 10 integrated into one piece, supporting seat 34 plays the effect to support fixed roof-rack dish 9.

The side of stretching out seat 2 extends has direction arris pole 3, the outside of direction arris pole 3 is provided with smooth guide frame 25, cooperation between direction arris pole 3 and the smooth guide frame 25 plays the effect of carrying out the direction to push away seat 22, smooth guide frame 25 is connected with push away seat 22, two sets of roof grooves 26 are respectively equipped with respectively to the upper and lower terminal surface edge of smooth guide frame 25, two sets of roof grooves 26 are installed respectively in the inside, roof grooves 26 play the effect of carrying out the top guide pulley 28, two sets of roof guide pulleys 28 laminating respectively in the upper and lower terminal surface department of direction arris pole 3, side groove 29 has been seted up to the side edge of smooth guide frame 25, side groove 29 plays the effect of carrying out the offside guide pulley 31, side guide pulley 31 is equipped with to the internally mounted of side guide pulley 31, side guide pulley 31 is laminated mutually with direction arris pole 3, side guide pulley 31 and roof guide pulley 28 play the effect of reducing the friction between direction arris pole 3 and the smooth guide frame 25.

The connecting seat 24 is all installed to the front and back terminal surface of pushing away seat 22, connecting seat 24 is the downward sloping setting, connecting seat 24's tip and smooth guide frame 25 fixed connection, connecting seat 24 plays the effect of fixing smooth guide frame 25 and pushing away seat 22 together, the inside of roof groove 26 is inlayed and is had a roof wheel shaft 27, roof wheel shaft 27 plays the effect of installing roof guide pulley 28, roof guide pulley 28 rotates the surface of installing in roof wheel shaft 27, the inside of side groove 29 is inlayed and is had side wheel shaft 30, side guide pulley 31 rotates the surface of inlaying in side wheel shaft 30, side wheel shaft 30 plays the effect of installing to side guide pulley 31.

During clamping, the retainer 35 is placed on the top frame disk 9, the limiting lug 10 enters the hole on the retainer 35 at this time, the retainer 35 is limited, then the threaded rod 5 is directly rotated, so that the two sets of threaded rings 23 are driven to move oppositely under the action of symmetrical arrangement of threads at two ends on the threaded rod 5, and further the two sets of push seats 22 are driven to move oppositely, at this time, the sliding guide frame 25 moves on the guiding edge rod 3 to guide the moving push seats 22, so that the two sets of clamping rings 16 are driven to synchronously move oppositely to clamp the outer surface of the retainer 35, the clamping fixation of the retainer 35 is completed, when the sliding guide frame 25 moves on the guiding edge rod 3, the top guide wheel 28 and the side guide wheel 31 are attached to the guiding edge rod 3 to roll, so that friction force between the guiding edge rod 3 and the sliding guide frame 25 is reduced, the friction force is saved when the threaded rod 5 is rotated, simultaneously, before clamping the retainer 35, the jacking stud 11 can be rotated firstly, the jacking disc 12 moves under the action of the threads between the jacking stud 11 and the thread bush 14 so as to prop against the extending lugs 13, the spacing between the two groups of extending lugs 13 is limited, after the retainer 35 is clamped by the clamping ring 16, the jacking disc 12 can prop against the extending lugs 13, the two groups of clamping rings 16 cannot continue to move inwards, meanwhile, the moving force generated by the rotation of the threaded rod 5 is counteracted by the spring body 19, so that the phenomenon that the deformation damage of the retainer 35 is caused by the overlarge clamping force due to the continued movement of the clamping ring 16 after the clamping is avoided, then the end face of the retainer 35 can be polished, the retainer 35 clamped between the two groups of clamping rings 16 can be propped by the jacking disc 9 during polishing, the retainer 35 will not slip down during the polishing process of the end face of the retainer 35, and the top tray 9 will limit the protrusion 10 to enter the hole of the retainer 35 while propping the retainer 35, so as to limit the retainer 35, and the retainer 35 will not rotate during the polishing process of the end face of the retainer 35.

The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a cylindrical bearing holder special fixture, includes cassette (1), its characterized in that: the middle part of the upper end of the clamping seat (1) is provided with a pushing piece, the end part of the pushing piece is connected with a clamping piece, the edge of the upper end of the clamping seat (1) is provided with a top piece, the axial lead of the top piece is collinear with the axial lead of the clamping piece, the corner of the upper end face of the clamping seat (1) is provided with a mounting hole in a penetrating way, and the top piece is connected with the pushing piece;

the pushing piece comprises a threaded rod (5) arranged in the middle of the upper end of the clamping seat (1), threads at two ends of the threaded rod (5) are symmetrically arranged, two groups of threaded rings (23) are symmetrically screwed on the outer surface of the threaded rod (5), two groups of pushing seats (22) are respectively inlaid on the outer surfaces of the threaded rings (23), two groups of connecting and fixing plates (20) are respectively connected to opposite surfaces of the pushing seats (22), and a hand wheel (6) is coaxially and fixedly arranged at the end part of the threaded rod (5);

the fixing device is characterized in that a fixing plate (32) is fixedly arranged in the middle of the upper end face of the clamping seat (1), a fixing seat (8) extends from the upper end face of the fixing plate (32), the threaded rod (5) is penetrated and rotationally embedded in the fixing seat (8), a reinforcing piece (33) is embedded at a corner between the fixing plate (32) and the fixing seat (8), a bearing frame (4) extends from the side face of the clamping seat (1), the end part of the bearing frame (4) is rotationally connected with the threaded rod (5), two groups of component frames (21) symmetrically extend from the side face of the connecting and fixing plate (20), and the end part of the component frame (21) is fixedly connected with a pushing seat (22); the clamping piece comprises pushing rings (18) embedded at two ends of a connecting and fixing plate (20), a directional column (7) is mounted in the pushing rings (18) in a fitting mode, a connecting and fixing block (17) is embedded at one end of the directional column (7), a clamping ring (16) is mounted at the end of the connecting and fixing block (17), a spring body (19) is wound on the outer side of the directional column (7), the spring body (19) is located between the side face of the connecting and fixing block (17) and the side face of the pushing rings (18), the directional column (7) and the connecting and fixing block (17) are integrally formed, and a limiting disc (36) is coaxially embedded at the other end of the directional column (7);

the clamping ring (16) is two sets of in quantity, two sets of clamping ring (16) are the symmetry setting, two sets of tip of clamping ring (16) are inlayed respectively and are had two sets of ear (13) that stretch out, and one of them a set of the side of stretching out ear (13) is run through and is inlayed threaded sleeve (14), the inside of threaded sleeve (14) is screwed up and is moved double-screw bolt (11) top, the coaxial top that inlays of one end of top moving double-screw bolt (11) moves dish (12), top moves dish (12) laminating in the side of stretching out ear (13) of another group, the other end coaxial fixed mounting of top moving double-screw bolt (11) has No. two hand wheels (15), the top is including two sets of extension seat (2) of symmetrical extension in the upper end front and back edge department of cassette (1), the top of extension seat (2) is provided with overhead frame dish (9), the up end annular array of overhead frame dish (9) extends has four sets of limit lugs (10), the up end laminating of overhead frame dish (9) is placed holder (35), the other end coaxial fixed mounting of top end of overhead frame dish (35) is in the terminal surface (35) of holding down in the centre gripping of holding ring (35) is in the terminal surface (35).

2. The cylindrical bearing retainer special fixture according to claim 1, wherein: the limiting lug (10) is characterized in that an inclined plane is formed at the edge of the upper end face of the limiting lug (10), the axial lead of the top frame disc (9) is collinear with the axial lead of the clamping ring (16), a supporting seat (34) is obliquely extended from the upper end face of the extending seat (2), the end part of the supporting seat (34) is fixedly connected with the lower end face of the top frame disc (9), the lower end face of the clamping ring (16) is higher than the upper end face of the top frame disc (9), and the top frame disc (9) and the limiting lug (10) are integrally formed.

3. A cylindrical bearing retainer special fixture according to claim 2, characterized in that: the side of stretching out seat (2) extends there is direction arris pole (3), the outside of direction arris pole (3) is provided with smooth guide frame (25), smooth guide frame (25) are connected with pushing away seat (22), the upper and lower terminal surface edge of smooth guide frame (25) do not is equipped with two sets of roof grooves (26), two sets of roof grooves (26) are inside installs two sets of top guide pulley (28) respectively, two sets of top guide pulley (28) laminating respectively in the upper and lower terminal surface department of direction arris pole (3), side groove (29) have been seted up to the side edge of smooth guide frame (25), side guide pulley (31) are installed to the internally mounted of side groove (29), side guide pulley (31) laminating mutually with direction arris pole (3).

4. A cylindrical bearing retainer special fixture according to claim 3, characterized in that: the front end face and the rear end face of the pushing seat (22) are respectively provided with a connecting seat (24), the connecting seats (24) are arranged in a downward inclined mode, the end portions of the connecting seats (24) are fixedly connected with the sliding guide frames (25), a top wheel shaft (27) is embedded in the top groove (26), the top guide wheels (28) are rotatably arranged on the outer surface of the top wheel shaft (27), side wheel shafts (30) are embedded in the side groove (29), and the side guide wheels (31) are rotatably embedded on the outer surface of the side wheel shafts (30).