CN216881743U

CN216881743U - Electric spindle bearing pre-tightening device for die machining

Info

Publication number: CN216881743U
Application number: CN202220399955.9U
Authority: CN
Inventors: 谈荣华
Original assignee: Wuxi Ronghua Machinery Manufacturing Co ltd
Current assignee: Wuxi Ronghua Machinery Manufacturing Co ltd
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2022-07-05
Anticipated expiration: 2032-02-28

Abstract

The utility model discloses a pre-tightening device for a bearing of an electric spindle for die machining, which comprises a bearing seat, a movable groove, a bearing, a limiting plate, a pre-tightening spring, a connecting plate, a through groove, a telescopic rod, a connecting rod, a handle, a clamping groove and a positioning mechanism, wherein the movable groove is formed in the center of the left side of the bearing seat, the bearing is movably arranged in the movable groove, the limiting plates are fixedly connected to the left sides of the top and the bottom of the inner wall of the movable groove, and the pre-tightening spring is fixedly connected to the top and the bottom of the right side of the bearing. According to the utility model, the bearing seat, the movable groove, the bearing, the limiting plate, the pre-tightening spring, the connecting plate, the through groove, the telescopic rod, the connecting rod, the handle, the clamping groove and the positioning mechanism are mutually matched, so that the effect of adjusting the pre-tightening force is realized, the operation of the adjusting process is very simple, the use requirements of a user can be met, great convenience is further brought to the user, and the practicability of the die machining electric spindle bearing pre-tightening device is greatly improved.

Description

Electric spindle bearing pre-tightening device for die machining

Technical Field

The utility model relates to the technical field of pre-tightening devices, in particular to a pre-tightening device for a bearing of an electric spindle for die machining.

Background

The quality of the bearing as a connecting device of a static part and a rotating part in the motor and the running condition in use directly determine the service life of the motor, and generally, the failure of the bearing is one of the main factors causing the failure of the motor. The proper mode of applying the preload to the bearing to generate a certain amount of pre-deformation between the rolling bodies and the inner ring and the outer ring in the bearing is an effective measure for well ensuring the correct positioning of the rotating shaft in the axial direction and the radial direction, improving the rotating precision of the bearing and preventing the bearing from being damaged. Meanwhile, the bearing pre-tightening can also improve the bearing rigidity of the bearing and reduce the vibration and noise of the motor.

At present, the common die processing electric main shaft bearing pre-tightening device has the following defects when in use:

the size of the pretightning force can not be adjusted, the use requirement of a user can not be met, then great trouble is caused to the user, and the practicability of the die machining electric main shaft bearing pretightening device is greatly reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a pre-tightening device for an electric spindle bearing in die processing, which aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a pre-tightening device for an electric spindle bearing in die machining comprises a bearing seat, a movable groove, a bearing, a limiting plate, a pre-tightening spring, a connecting plate, a through groove, a telescopic rod, a connecting rod, a handle, a clamping groove and a positioning mechanism, wherein the movable groove is formed in the center of the left side of the bearing seat, the bearing is movably arranged in the movable groove, the left sides of the top and the bottom of the inner wall of the movable groove are fixedly connected with the limiting plate, the top and the bottom of the right side of the bearing are fixedly connected with the pre-tightening spring, the through groove is formed in the right side of the bearing seat corresponding to the position of the pre-tightening spring, the connecting plate is fixedly connected to the right side of the connecting plate, the right side of the telescopic rod penetrates through the through groove and extends to the inside of the through groove, the connecting rod is fixedly connected to the right side of the connecting plate, the right end of the connecting rod penetrates through the through groove and extends to the outside of the through groove and is fixedly connected with the handle, six clamping grooves are formed in the connecting plate, which is far away from one side of the telescopic rod and is positioned outside the through groove, and a positioning mechanism is arranged on the right side of the bearing seat;

the positioning mechanism comprises a moving groove, a sliding rod, a moving block, a positioning rod and a fixing spring, the moving groove is formed in the top and the bottom of the right side of the bearing seat, the sliding rod is fixedly connected to the inner wall of the moving groove, the moving block is slidably connected to one side, close to the through groove, of the surface of the sliding rod, the right side of the moving block penetrates through the moving groove and extends to the outside of the moving groove, the positioning rod is fixedly connected to the position, close to one side of the connecting rod and corresponding to the clamping groove, of the moving block, one end, far away from the moving block, of the positioning rod penetrates through the clamping groove and extends to the inside of the clamping groove, and the fixing spring is sleeved on one side of the surface of the sliding rod.

Preferably, the limiting plate is movably connected with the bearing.

Preferably, the through groove and the movable groove are communicated with each other.

Preferably, the connecting plate is movably connected with the movable groove.

Preferably, the right side of the telescopic rod is fixedly connected with the right side of the inner wall of the through groove.

Preferably, the connecting rod is movably connected with the through groove.

Preferably, the positioning rod is movably connected with the clamping groove.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, the bearing seat, the movable groove, the bearing, the limiting plate, the pre-tightening spring, the connecting plate, the through groove, the telescopic rod, the connecting rod, the handle, the clamping groove and the positioning mechanism are mutually matched, so that the effect of adjusting the pre-tightening force is realized, the operation of the adjusting process is very simple, the use requirements of a user can be met, great convenience is further brought to the user, and the practicability of the die machining electric spindle bearing pre-tightening device is greatly improved.

Drawings

FIG. 1 is a structural cross-sectional view in elevation of the present invention;

FIG. 2 is an enlarged view of A of FIG. 1 according to the present invention;

fig. 3 is a schematic structural view of a front view of the present invention.

In the figure: the device comprises a bearing seat 1, a movable groove 2, a bearing 3, a limiting plate 4, a pre-tightening spring 5, a connecting plate 6, a through groove 7, an expansion rod 8, a connecting rod 9, a handle 10, a clamping groove 11, a positioning mechanism 12, a movable groove 121, a sliding rod 122, a movable block 123, a positioning rod 124 and a spring fixing 125.

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.

Referring to fig. 1-3, a mold processing electric spindle bearing pre-tightening device comprises a bearing seat 1, a movable groove 2, a bearing 3, a limiting plate 4, a pre-tightening spring 5, a connecting plate 6, a through groove 7, a telescopic rod 8, a connecting rod 9, a handle 10, a clamping groove 11 and a positioning mechanism 12, wherein the movable groove 2 is formed in the center of the left side of the bearing seat 1, the bearing 3 is movably installed in the movable groove 2, the limiting plate 4 is fixedly connected to the top and the left side of the bottom of the inner wall of the movable groove 2, the limiting plate 4 is movably connected with the bearing 3, the pre-tightening spring 5 is fixedly connected to the top and the bottom of the right side of the bearing 3, the through groove 7 is formed in the right side of the bearing seat 1 corresponding to the pre-tightening spring 5, the through groove 7 is communicated with the movable groove 2, the connecting plate 6 is fixedly connected to the right side of the pre-tightening spring 5, the connecting plate 6 is movably connected with the movable groove 2, the telescopic rod 8 is fixedly connected to the right side of the connecting plate 6, the right side of telescopic link 8 runs through logical groove 7 and extends to the inside that leads to groove 7, the right side of telescopic link 8 and the right side fixed connection who leads to the inner wall of groove 7, the right side fixedly connected with connecting rod 9 of connecting plate 6, the right-hand member of connecting rod 9 runs through logical groove 7 and extends to the outside and the fixedly connected with handle 10 that lead to groove 7, swing joint between connecting rod 9 and the logical groove 7, connecting plate 6 keeps away from 8 one side of telescopic link and is located the outside that leads to groove 7 and has seted up six draw-in grooves 11, the right side of bearing frame 1 is provided with positioning mechanism 12.

Positioning mechanism 12 includes shifting chute 121, slide bar 122, the movable block 123, locating lever 124 and fixed spring 125, shifting chute 121 has all been seted up to top and bottom on bearing frame 1 right side, fixedly connected with slide bar 122 on the inner wall of shifting chute 121, slide bar 122 surface is close to one side sliding connection of logical groove 7 has movable block 123, the outside that shifting chute 121 just extended to shifting chute 121 is run through on the right side of movable block 123, movable block 123 is close to connecting rod 9 one side and corresponds the position fixedly connected with locating lever 124 of draw-in groove 11, the one end that moving block 123 was kept away from to locating lever 124 runs through draw-in groove 11 and extends to the inside of draw-in groove 11, swing joint between locating lever 124 and the draw-in groove 11, fixed spring 125 has been cup jointed to one side on slide bar 122 surface.

During the use, when the pretightning force needs to be adjusted, only need the user to keep away from draw-in groove 11 one side pulling movable block 123, and then drive locating lever 124 to the one side motion of keeping away from draw-in groove 11, extrude fixed spring 125 simultaneously, and then make locating lever 124 break away from draw-in groove 11, then push handle 10 to the left side, and then drive connecting rod 9 and connecting plate 6 to move to suitable position to the left side, compress pretension spring 5 simultaneously, thereby change the pretightning force that pretension spring 5 provided to bearing 3, then loosen movable block 123, and then under the elastic force effect of fixed spring 125, drive movable block 123 and locating lever 124 and carry out the motion that resets, and then make locating lever 124 insert in the corresponding draw-in groove 11 can.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a mould processing electricity main shaft bearing preloading device, includes bearing frame (1), activity groove (2), bearing (3), limiting plate (4), pretension spring (5), connecting plate (6), leads to groove (7), telescopic link (8), connecting rod (9), handle (10), draw-in groove (11) and positioning mechanism (12), its characterized in that: the bearing seat is characterized in that a movable groove (2) is formed in the center of the left side of the bearing seat (1), a bearing (3) is movably mounted inside the movable groove (2), a limiting plate (4) is fixedly connected to the top of the inner wall of the movable groove (2) and the left side of the inner wall of the bottom of the movable groove, a pre-tightening spring (5) is fixedly connected to the top and the bottom of the right side of the bearing (3), a through groove (7) is formed in the right side of the bearing seat (1) corresponding to the pre-tightening spring (5), a connecting plate (6) is fixedly connected to the right side of the pre-tightening spring (5), a telescopic rod (8) is fixedly connected to the right side of the connecting plate (8), the right side of the telescopic rod penetrates through the through groove (7) and extends into the through groove (7), a connecting rod (9) is fixedly connected to the right side of the connecting plate (6), the right end of the connecting rod (9) penetrates through the through groove (7) and extends into the outer portion of the through groove (7) and is fixedly connected with a handle (10), six clamping grooves (11) are formed in the connecting plate (6) far away from one side of the telescopic rod (8) and positioned outside the through groove (7), and a positioning mechanism (12) is arranged on the right side of the bearing seat (1); the positioning mechanism (12) comprises a moving groove (121), a sliding rod (122), a moving block (123), a positioning rod (124) and a fixed spring (125), the top and the bottom of the right side of the bearing seat (1) are both provided with a movable groove (121), a sliding rod (122) is fixedly connected on the inner wall of the moving groove (121), a moving block (123) is connected on one side of the surface of the sliding rod (122) close to the through groove (7) in a sliding manner, the right side of the moving block (123) penetrates through the moving groove (121) and extends to the outside of the moving groove (121), a positioning rod (124) is fixedly connected to one side of the moving block (123) close to the connecting rod (9) and corresponding to the position of the clamping groove (11), one end, far away from the moving block (123), of the positioning rod (124) penetrates through the clamping groove (11) and extends into the clamping groove (11), and a fixed spring (125) is sleeved on one side of the surface of the sliding rod (122).

2. The pre-tightening device for the electric spindle bearing in the die machining process according to claim 1, characterized in that: the limiting plate (4) is movably connected with the bearing (3).

3. The pre-tightening device for the electric spindle bearing in the die machining process according to claim 2, characterized in that: the through groove (7) is communicated with the movable groove (2).

4. The pre-tightening device for the electric spindle bearing in the die machining process according to claim 3, characterized in that: the connecting plate (6) is movably connected with the movable groove (2).

5. The pre-tightening device for the electric spindle bearing in the die machining process according to claim 4, wherein: the right side of the telescopic rod (8) is fixedly connected with the right side of the inner wall of the through groove (7).

6. The pre-tightening device for the electric spindle bearing in the die machining process according to claim 5, wherein: the connecting rod (9) is movably connected with the through groove (7).

7. The pre-tightening device for the electric spindle bearing in the die machining process according to claim 6, wherein: the positioning rod (124) is movably connected with the clamping groove (11).