CN214816340U

CN214816340U - Miniature bearing inner race pushes down device

Info

Publication number: CN214816340U
Application number: CN202023345622.8U
Authority: CN
Inventors: 徐境福
Original assignee: Nantong Sk Seiko Co ltd
Current assignee: Nantong Sk Seiko Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-11-23
Anticipated expiration: 2030-12-30

Abstract

The utility model relates to a miniature bearing inner ring pressing device in the technical field of miniature bearing assembly, which comprises a fixed seat and a pressing rod; the upper end of the fixed seat is provided with a mounting hole, and the lower end of the fixed seat is provided with a notch; the pressing rod comprises a connecting block and a pressing rod, one end of the pressing rod is connected to the end face of the connecting block, and the other end of the pressing rod is provided with an arc-shaped groove; the mounting hole is used for being connected with the cylinder, the connecting block is connected in the gap, and the arc-shaped groove is used for contacting the inner ring of the bearing and implementing pressing. The utility model discloses simple structure is connected conveniently like the cylinder with power stroke device to connect through dismantling and realize the high accuracy matching with the bearing inner race.

Description

Miniature bearing inner race pushes down device

Technical Field

The utility model relates to a miniature bearing assembly technical field specifically relates to a miniature bearing inner race pushes down device.

Background

The bearing is an important part in the modern mechanical equipment, and has the main functions of supporting the mechanical rotating body, reducing the friction coefficient in the motion process of the mechanical rotating body and ensuring the rotation precision of the mechanical rotating body. The size of the bearing is various, and the micro bearing is mainly used in the fields of various micro motors, precision instruments and the like.

Micro bearings generally require high rotational speeds and low noise. In order to improve the production efficiency and the manufacturing precision of the miniature bearing, an intelligent full-automatic production line is a technical problem to be solved in the current miniature bearing, particularly the special miniature bearing manufacturing field. In the aspect of production technology, corresponding tools matched with all links are needed, for example, in the link of a bearing inner ring production line, corresponding operations are often difficult to independently complete by the manipulator in the process of transferring the bearing inner ring from the manipulator, and the bearing inner ring is pressed down by manpower in the conventional method, so that the bearing inner ring enters the next procedure.

At present, relevant working structures of the bearing inner ring pressing device at home and abroad are not searched.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model aims at providing a miniature bearing inner race pushes down device.

According to the utility model, the inner ring pressing device of the miniature bearing comprises a fixed seat and a pressing rod;

the upper end of the fixed seat is provided with a mounting hole, and the lower end of the fixed seat is provided with a notch;

the pressing rod comprises a connecting block and a pressing rod, one end of the pressing rod is connected to the end face of the connecting block, and the other end of the pressing rod is provided with an arc-shaped groove;

the mounting hole is used for being connected with the cylinder, the connecting block is connected in the gap, and the arc-shaped groove is used for contacting the inner ring of the bearing and implementing pressing.

In some embodiments, the arc radius of the arc groove is the same as the outer diameter of the bearing inner ring, and the surface of the arc groove is in contact with the outer surface of the bearing outer ring.

In some embodiments, the connecting block is connected with the pressure rod to form the pressure rod with a T-shaped structure.

In some embodiments, the gap has a right-angled trapezoid structure, and the connecting block is a trapezoid block adapted to the gap.

In some embodiments, a first fixing screw hole is formed in one side of the right-angle surface of the notch, and the number of the first fixing screw holes is 1 or more.

In some embodiments, the cross section of the compression bar is in a track shape, and the distance between two parallel surfaces of the compression bar is between the width of the bearing inner ring and the width of the inner ring channel.

In some embodiments, the connecting block and the pressure lever are integrally formed by an injection molding process.

In some embodiments, the connecting block and the pressure bar are made of acrylic materials.

In some embodiments, the mounting hole is a stepped hole, and a second fixing screw hole is formed in a side surface of the mounting hole.

In some embodiments, the number of the second fixing screw holes is an even number, and the second fixing screw holes are symmetrically arranged in pairs along the circumferential direction of the fixing seat.

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

1. the utility model discloses simple structure is connected conveniently like the cylinder with power stroke device to connect through dismantling and realize the high accuracy matching with the bearing inner race.

2. The utility model discloses an optimization to mounting hole structure in the fixing base improves the assembly precision of fixing base and cylinder telescopic link.

3. The utility model discloses a further optimize the structure of pressing the stick and with the partial structure of pressing the fixing base of stick looks adaptation connection, improve the fastening effect of pressing the stick, improve the work precision when pushing down the device and acting on the bearing inner circle.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic view of the overall structure of the pressing device of the present invention;

FIG. 2 is a schematic view of the fixing base of the present invention;

FIG. 3 is a schematic view of the structure of the pressing rod of the present invention;

the corresponding reference numbers in the figures correspond to the part names:

1-a fixed seat, 11-a mounting hole, 12-a notch, 13-a first fixing screw hole, 14-a second fixing screw hole, 2-a pressing rod, 21-a connecting block, 22-a pressing rod and 220-an arc-shaped groove.

Detailed Description

The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.

Example 1

The utility model provides a miniature bearing inner race pushes down device, its pushes down the device and is used for and implements pushing down the bearing inner race of centre gripping that the manipulator after being connected with power stroke device for drop from the manipulator after the bearing inner race is pressed, get into lower one process. The following description will be given taking a cylinder as an example of the power stroke device. As shown in fig. 1-3, the pressing device includes a fixing seat 1 and a pressing rod 2, preferably, the pressing rod 2 is detachably connected to the fixing seat 1, so that the corresponding pressing rod 2 can be replaced in time according to the inner rings of the bearings with different sizes, the operation is simple, and the cost is saved.

The structure shape of fixing base 1 can be cylindrical or prismatic, and is preferred, and the fixing base 1 of cylindricality structure is opened along the axis direction has central through-hole, and the cooperation with corresponding connection structure can be realized on the one hand to seting up of central through-hole, can save the consumptive material simultaneously, reduces the weight of pushing down the device, reduces the energy consumption. The upper end of the fixing seat 1 is provided with a mounting hole 11, the mounting hole 11 is used for being connected with a cylinder, specifically, a telescopic rod of the cylinder is connected with the mounting hole 11, and when the fixing seat 1 is provided with a central through hole, one distance on the upper portion of the central through hole can be the mounting hole 11. The mounting hole 11 can be connected with the telescopic rod of the cylinder in a threaded connection mode, a clamping connection mode and the like. The lower end of the fixed seat 1 is provided with a notch 12, and the notch 12 is arranged for realizing connection with the pressing rod 2. The pressure rod 2 comprises a connecting block 21 and a pressure rod 22, the connecting block 21 is connected with the notch 12 in an adaptive mode, and the pressure rod 2 is connected with the fixing seat 1. The one end of the pressure lever 22 is connected with the connecting block 21, and the connection between the pressure lever and the connecting block can be realized by welding, gluing, screwing or clamping and the like, and can also be integrally formed. The other end of strut 22 is provided as an arcuate groove 220, arcuate groove 220 being adapted to contact a surface of an inner race, where the surface of the inner race comprises an outer surface of the inner race and a surface of an inner race channel on the inner race. Preferably, the arc radius of the arc-shaped groove 220 is the same as the outer diameter of the bearing inner ring, and the surface of the arc-shaped groove 220 is in contact with the outer surface of the bearing inner ring, that is, the width of the arc-shaped groove 220 is greater than the opening width of the inner ring channel. When the arc-shaped groove 220 contacts the bearing inner ring and is pressed down, the inner ring channel is not damaged due to the contact with the inner ring channel.

The working principle of the miniature bearing inner ring pressing device is as follows: the fastening connection of the pressure rod 2 and the fixing seat 1 is realized through the matching of the connecting block 21 and the notch 12, the fixing seat 1 connected with the pressure rod 2 is connected with the air cylinder telescopic rod through the mounting hole 11 in a fastening manner, the air cylinder telescopic rod connected with the pressing device in a fastening manner realizes the change of the stroke through the air cylinder, and then the arc-shaped groove 220 at the end part of the pressing rod 22 is in contact with the outer surface of the bearing inner ring clamped by the manipulator and performs the pressing action, so that the bearing inner ring is separated from the manipulator and enters the next process. The utility model discloses simple structure is connected conveniently like the cylinder with power stroke device to connect through dismantling and realize the high accuracy matching with the bearing inner race.

Example 2

This embodiment 2 is on embodiment 1's basis, through the optimization to mounting hole structure in the fixing base, improves the assembly precision of fixing base and cylinder telescopic link. Specifically, the method comprises the following steps:

as shown in fig. 1-3, the mounting hole 11 is designed as a stepped hole structure, after the end of the telescopic rod of the cylinder extends into one end of the mounting hole 11 for a distance, the end surface of the telescopic rod of the cylinder contacts with the stepped surface at the bottom of the mounting hole 11, the side surface of the mounting hole 11 is provided with a second fixing screw hole 14, and the fixing seat 1 and the telescopic rod of the cylinder are fastened through the second fixing screw hole 14. Through the arrangement of the height of the bottom step surface, the vertical stroke of the pressing device can be effectively adjusted, and meanwhile, the pressing device cannot generate displacement in the opposite direction due to the reaction force in the process that the pressing rod 22 of the pressing device is contacted with the bearing inner ring and is pressed down, so that the action precision of the pressing device is ensured.

Further preferably, the second fixing screw holes 14 are provided in plural along the outer peripheral surface of the mounting hole 11, and the plural second fixing screw holes 14 may be provided in pairs in a symmetrical manner on the outer peripheral surface of the mounting hole 11, that is, the number of the second fixing screw holes 14 is even. In addition, the plurality of second fixing screw holes 14 located on the outer peripheral surface of the mounting hole 11 may be provided at equal angles in the circumferential direction, in this case, the number of the second fixing screw holes 14 is preferably 3, and the angle between the 3 second fixing screw holes 14 is preferably 120 °.

Example 3

This embodiment 3 forms on the basis of

embodiment

1 or 2, through the partial structure of further optimizing the structure of pressing the stick and the fixing base with pressing stick looks adaptation and being connected, improves the fastening effect of pressing the stick, promotes the work precision that pushes down when the device acts on the bearing inner race. Specifically, the method comprises the following steps:

as shown in fig. 1-3, the structure of the pressing rod 2 is designed to be a T-shaped structure, the structure of the connecting block 21 is preferably a trapezoidal block, i.e. a trapezoidal structure with a diagonal plane, suitably, the notch 12 at the lower end of the fixing base 1 is a trapezoidal notch, and at the same time, a first fixing screw hole 13 is provided at one side of the vertical plane of the notch 12 of the trapezoidal structure, preferably, the axis of the first fixing screw hole 13 is perpendicular to the vertical plane of the notch 12. The connecting block 21 is fittingly connected in the notch 12, and the fixing screw bolt fastens the connecting block 21 in the notch 12 through the first fixing screw hole 13, thereby realizing the fastening connection of the pressing rod 2 and the fixing seat 1. The number of the first fixing screw holes 13 may be 1 or more, where more means 2 or more. When a plurality of first fixing screw holes 13 are provided, it is preferable that the first fixing screw holes 13 are in a vertically offset relationship to improve the fixing effect. Design connecting block 21 and breach 12 for the trapezium structure that has the scarf, for rectangle cooperation structure, not only effectively increased the area of contact of connecting block 21 and fixing base 1, the contact mode of scarf still can be in the pressure device up-and-down motion in-process simultaneously, effectively restrain pressing excellent 2 for the ascending trend of fixing base 1 for pressing excellent 2 and fixing base 1 fastening back and keeping relatively static better in the motion process, improve the action precision of pressing the device.

The structure of the pressure lever 22 is preferably a cylindrical lever with a runway-shaped cross section, and the distance between two parallel surfaces of the pressure lever 22 is between the width of the bearing inner ring and the width of the inner ring channel, so that when the pressure lever 22 presses down, the surface of the arc-shaped groove 220 is in contact with the outer surface of the bearing inner ring, and cannot be in contact with a manipulator clamping the bearing inner ring due to offset, thereby failing to complete the pressing down operation of the bearing inner ring and achieving the purpose of improving the action precision.

It is further preferable that both the pressing rod 22 and the connecting block 21 are integrally formed through an injection molding process, and the material of both the pressing rod 22 and the connecting block 21 is preferably an acrylic material. The pressing rod and the connecting block are integrally formed, so that the action accuracy of the pressing device can be further guaranteed.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims

1. A miniature bearing inner ring pressing device is characterized by comprising a fixed seat (1) and a pressing rod (2);

the upper end of the fixed seat (1) is provided with a mounting hole (11), and the lower end of the fixed seat (1) is provided with a notch (12);

the pressing rod (2) comprises a connecting block (21) and a pressing rod (22), one end of the pressing rod (22) is connected to the end face of the connecting block (21), and an arc-shaped groove (220) is formed in the other end of the pressing rod (22);

the mounting hole (11) is used for being connected with a cylinder, the connecting block (21) is connected into the notch (12), and the arc-shaped groove (220) is used for contacting with an inner ring of the bearing and implementing pressing.

2. The inner race hold-down device of claim 1, wherein the arc-shaped groove (220) has the same radius as the outer diameter of the inner race, and the surface of the arc-shaped groove (220) is in contact with the outer surface of the outer race.

3. The inner race pressing device of a miniature bearing according to claim 1 or 2 characterized in that said connecting block (21) and said pressing rod (22) are connected into said pressing rod (2) of T-shaped structure.

4. The inner race pressing device of a miniature bearing according to claim 3, characterized in that the notch (12) is a right trapezoid structure, and the connecting block (21) is a trapezoid block adapted to the notch (12).

5. The inner race pressing device of a miniature bearing according to claim 4, characterized in that a first fixing screw hole (13) is provided at one side of the right-angle surface of said notch (12), and the number of said first fixing screw holes (13) is 1 or more.

6. The inner race depression apparatus according to claim 3, wherein the cross section of the compression bar (22) is raceway type, and the distance between two parallel surfaces of the compression bar (22) is between the width of the inner race and the width of the inner race channel.

7. The inner race pressing device of a micro bearing according to claim 1, 2, 4, 5 or 6, wherein the connecting block (21) and the pressing rod (22) are integrally formed by an injection molding process.

8. The inner race pressing device of the miniature bearing according to claim 7, wherein the connecting block (21) and the pressing rod (22) are made of acrylic material.

9. The inner race hold-down device of a miniature bearing according to claim 1 wherein said mounting hole (11) is a stepped hole and said mounting hole (11) is provided with a second fixing screw hole (14) on the side.

10. The inner race hold-down device of a miniature bearing according to claim 9 wherein said second fixing screw holes (14) are provided in an even number, symmetrically in pairs, circumferentially along said fixing seat (1).