CN218984672U

CN218984672U - Bearing press-fitting device

Info

Publication number: CN218984672U
Application number: CN202223228839.XU
Authority: CN
Inventors: 李洪涛; 董国利
Original assignee: Beijing Jingdong Qianshi Technology Co Ltd
Current assignee: Beijing Jingdong Qianshi Technology Co Ltd
Priority date: 2022-12-02
Filing date: 2022-12-02
Publication date: 2023-05-09
Anticipated expiration: 2032-12-02

Abstract

The utility model relates to the technical field of bearing press fitting, in particular to a bearing press fitting device which comprises a mounting frame, a driving piece, a pressure head assembly and a switching assembly, wherein the driving piece is arranged on the mounting frame; the pressure head assembly is arranged at the driving end of the driving piece, can be driven by the driving piece to lift, and comprises a plurality of pressure heads with different specifications; the switching component is used for selectively switching any one of the plurality of pressure heads to an operating state. The utility model adopts the combined pressure head assembly consisting of a plurality of pressure heads with different specifications, and can select the pressure heads with corresponding specifications to be switched to the working state through the switching assembly according to the specifications of the bearing to be pressed, so that the utility model can adapt to the pressing of the bearing with various specifications, has strong universality, saves the step of disassembling the pressure heads to change the specifications, and improves the pressing efficiency.

Description

Bearing press-fitting device

Technical Field

The utility model relates to the technical field of bearing press-fitting, in particular to a bearing press-fitting device.

Background

The automatic logistics development is rapid, the automatic logistics equipment is developed at a high speed, the bearing is a common part in the automatic logistics equipment, three or so bearing specifications are generally used for one logistics equipment, and the rapid and good press-fitting of the bearing relates to the assembly efficiency and the assembly quality of the logistics equipment.

In the prior art, a mode is that bearings with the same specification are matched with an independent pressure head, and the pressure head is knocked by tools such as a hammer for bearing press-fitting, so that the defects of high labor intensity and poor universality of the pressure head are overcome; the other mode is that the bearings with the same specification are matched with independent pressure heads, and bearing press-fitting is carried out by means of equipment such as an air cylinder, so that the pressure heads have the defects of poor universality, and the assembly efficiency is reduced if the pressure heads are required to be replaced in the press-fitting process.

Disclosure of Invention

The utility model aims to provide a bearing press-fitting device which is high in universality and press-fitting efficiency.

To achieve the purpose, the utility model adopts the following technical scheme:

a bearing press-fit device comprising:

a mounting frame;

the driving piece is arranged on the mounting frame;

the pressure head assembly is arranged at the driving end of the driving piece and can be driven by the driving piece to rise and fall, and the pressure head assembly comprises a plurality of pressure heads with different specifications;

and the switching assembly is used for selectively switching any one of the plurality of pressure heads to an operating state.

As an alternative technical scheme of the bearing press-fitting device, a plurality of press heads are sleeved in sequence from inside to outside from small to large, when the press heads positioned at the outermost side are in a working state, the rest press heads are retracted into the press heads positioned at the outermost side, and when any press head except the press heads positioned at the outermost side is in a working state, the switching assembly can eject the press heads which are positioned at the working state correspondingly out of the press heads positioned at the outermost side.

As an alternative technical scheme of the bearing press-fitting device, the number of the pressure heads is three, and the bearing press-fitting device comprises an inner pressure head, an intermediate pressure head sleeved outside the inner pressure head and an outer pressure head sleeved outside the intermediate pressure head.

As an optional technical scheme of the bearing press-fit device, the switching assembly comprises a switching screw and a switching nut, the driving end of the driving piece is connected with a connecting frame, the outer pressure head is connected with the connecting frame, the switching screw is in threaded connection with the connecting frame, and the switching nut is in threaded connection with the switching screw;

the top end of the middle pressure head is provided with a first avoidance hole, the top end of the outer pressure head is provided with a second avoidance hole, the diameter of the first avoidance hole is larger than the outer diameter of the switching screw rod and smaller than the outer diameter of the switching nut, and the diameter of the second avoidance hole is larger than the outer diameter of the switching nut; the switching screw is opposite to the first avoiding hole and the second avoiding hole, and the switching screw is coaxial with the first avoiding hole and the second avoiding hole.

As an alternative technical scheme of the bearing press-fitting device, the first avoidance hole is coaxial with the inner pressure head, and the second avoidance hole is coaxial with the middle pressure head.

As an optional technical scheme of the bearing press-fitting device, the lower end of the middle press head is connected with a first limiting end cover, the first limiting end cover is provided with a first limiting part positioned on the inner side of the middle press head, a first limiting protrusion is formed on the periphery of the inner press head, and when the switching assembly ejects the inner press head, the first limiting protrusion can be abutted with the first limiting part so as to limit the extending length of the inner press head.

As an optional technical scheme of the bearing press-fitting device, the lower end of the outer pressure head is connected with a second limiting end cover, the second limiting end cover is provided with a second limiting part positioned on the inner side of the outer pressure head, a second limiting protrusion is formed on the periphery of the middle pressure head, and when the switching assembly ejects the middle pressure head, the second limiting protrusion can be abutted with the second limiting part so as to limit the extending length of the middle pressure head.

As the optional technical scheme of bearing press-fit device, the mounting bracket includes mounting panel, lower mounting panel and stand, go up the mounting panel with interval sets up about the lower mounting panel, the stand connect in go up the mounting panel with between the mounting panel down, the driving piece set up in go up the mounting panel, the pressure head subassembly is located go up the mounting panel with between the mounting panel down, wait that the bearing of pressure equipment can place in the mounting panel down.

As the optional technical scheme of bearing press-fit device, the mounting bracket still includes the intermediate mounting plate, the intermediate mounting plate is located go up the mounting panel with between the mounting panel down, the pilot hole has been seted up on the intermediate mounting plate, be provided with the uide bushing in the pilot hole, the pressure head subassembly can follow the uide bushing removes.

As an alternative technical scheme of the bearing press-fitting device, the driving piece is an electric cylinder, an air cylinder or a hydraulic cylinder.

The utility model has the beneficial effects that:

the bearing press-fitting device provided by the utility model adopts the combined press-head assembly consisting of the press heads with different specifications, and the press heads with corresponding specifications can be switched to the working state by the switching assembly according to the specifications of the bearing to be press-fitted, so that the bearing press-fitting device can adapt to the press-fitting of the bearing with various specifications, has strong universality, omits the step of disassembling the press heads to replace the specifications, and improves the press-fitting efficiency.

Drawings

Fig. 1 is a schematic structural view of a bearing press-fitting apparatus provided by an embodiment of the present utility model;

FIG. 2 is an exploded view of a bearing press-fitting apparatus provided by an embodiment of the present utility model;

FIG. 3 is a schematic view of the structure of the connection frame, ram assembly and switching assembly involved in an embodiment of the present utility model;

FIG. 4 is a schematic view of the ram assembly involved in an embodiment of the utility model;

FIG. 5 is a front view of a ram assembly and a switch assembly involved in an embodiment of the utility model;

FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5 (showing the outboard ram in operation);

FIG. 7 is a cross-sectional view taken along line A-A of FIG. 5 (showing the inboard ram in operation);

fig. 8 is a cross-sectional view taken along A-A in fig. 5 (showing the intermediate ram in operation).

In the figure:

10. a mounting frame; 11. an upper mounting plate; 12. a lower mounting plate; 13. a column; 14. an intermediate mounting plate; 15. a column mounting base; 16. a spacer bush; 20. a driving member; 30. a ram assembly; 31. an inner ram; 311. the first limiting protrusion; 32. an intermediate ram; 321. a first avoidance hole; 322. the second limiting bulge; 33. an outer ram; 331. a second avoidance hole; 34. a first limiting end cap; 341. a first limit part; 35. the second limiting end cover; 351. a second limit part; 40. a switching assembly; 41. switching the screw; 42. a switching nut; 50. a connecting frame; 51. a connecting plate; 60. a guide sleeve;

100. and (3) a bearing.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; either mechanically or electrically. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

As shown in fig. 1 to 8, the embodiment of the present utility model provides a bearing press-fitting device, which includes a mounting frame 10, a driving member 20, a ram assembly 30, and a switching assembly 40, wherein the mounting frame 10 is used for providing a mounting base for other components; the driving piece 20 is arranged on the mounting frame 10; the pressure head assembly 30 is arranged at the driving end of the driving piece 20, the pressure head assembly 30 can be driven by the driving piece 20 to lift, and the pressure head assembly 30 comprises a plurality of pressure heads with different specifications; the switching assembly 40 is used to selectively switch any one of the plurality of rams to an operational state. The bearing press-fitting device provided by the embodiment of the utility model adopts the combined press head assembly 30 formed by the press heads with different specifications, and can select the press heads with corresponding specifications to be switched to the working state through the switching assembly 40 according to the specifications of the bearing 100 to be press-fitted, so that the bearing press-fitting device can adapt to the press-fitting of the bearing 100 with various specifications, has strong universality, omits the step of disassembling the press heads to replace the specifications, and improves the press-fitting efficiency.

Specifically, the plurality of pressing heads are sleeved in sequence from the small to the large and from the inside to the outside, when the pressing head located at the outermost side is in the working state, the rest of pressing heads are retracted into the pressing head located at the outermost side, and when any one of the pressing heads except the pressing head located at the outermost side is in the working state, the switching assembly 40 can eject the pressing heads corresponding to the working state out of the pressing head located at the outermost side. The pressure heads with different specifications are switched by sleeving the pressure head assembly 30 and ejecting the switching assembly 40, so that the switching mode is simple and easy to operate.

In this embodiment, referring to fig. 3 to 6, the number of the pressing heads is three, including an inner pressing head 31, an intermediate pressing head 32 sleeved outside the inner pressing head 31, and an outer pressing head 33 sleeved outside the intermediate pressing head 32, the top end of the intermediate pressing head 32 is provided with a first avoidance hole 321, and the top end of the outer pressing head 33 is provided with a second avoidance hole 331. The switching assembly 40 comprises a switching screw 41 and a switching nut 42, the driving end of the driving piece 20 is connected with the connecting frame 50 through a connecting plate 51, the outer pressure head 33 is connected with the connecting frame 50, the switching screw 41 is in threaded connection with the connecting frame 50, and the switching nut 42 is in threaded connection with the switching screw 41. The diameter of the first avoidance hole 321 is larger than the outer diameter of the switching screw 41 and smaller than the outer diameter of the switching nut 42, and the diameter of the second avoidance hole 331 is larger than the outer diameter of the switching nut 42; the switching screw 41 is arranged opposite to the first avoidance hole 321 and the second avoidance hole 331, and the switching screw 41 is coaxial with the first avoidance hole 321 and the second avoidance hole 331.

Referring to fig. 7, when the inner ram 31 is required to participate in the press-fitting operation, the switching nut 42 is first adjusted to an upper position away from the lower end of the switching screw 41, then the switching screw 41 is screwed down, the switching screw 41 applies a downward pressure to the inner ram 31 through the first avoiding hole 321, the inner ram 31 extends out of the middle ram 32 and the outer ram 33 under the action of the switching screw 41, and at this time, the inner ram 31 can participate in the press-fitting operation on the bearing 100. Referring to fig. 8, when the intermediate ram 32 is required to participate in the press-fitting operation, the switching nut 42 is first adjusted to the lower end portion of the switching screw 41, then the switching screw 41 is screwed down, the switching nut 42 applies a downward pressure to the intermediate ram 32 through the second avoidance hole 331, the intermediate ram 32 extends out of the outer ram 33 under the action of the switching screw 41 and the switching nut 42, and at this time, the intermediate ram 32 may participate in the press-fitting operation on the bearing 100. Referring to fig. 6, when the outside ram 33 is required to participate in the press-fitting operation, the switching screw 41 is first screwed upward so that the lower end of the switching screw 41 is separated from the ram assembly 30, and then upward pushing force is applied to the inside ram 31 and the intermediate ram 32 so that the inside ram 31 and the intermediate ram 32 are retracted into the outside ram 33, and at this time, the outside ram 33 can participate in the press-fitting operation on the bearing 100.

Of course, the number of the pressing heads is not limited to three in the embodiment, in other embodiments, the number of the pressing heads may be two or more than three, when the number of the pressing heads is two, the switching nut 42 may be omitted, and the switching of the two pressing heads can be directly performed by the switching screw 41, so that the switching principle is the same as above, that is, when the pressing head parameter on the inner side is required to work, the switching screw 41 is only required to be screwed down to eject the pressing head on the inner side, when the pressing head on the outer side is required to participate in work, the switching screw 41 is required to be screwed up to disengage the switching screw 41 from the pressing head assembly 30, then an upward pushing force is applied to the pressing head on the inner side, and the pressing head on the inner side is retracted into the pressing head on the outer side. When the number of the pressure heads is more than three, a plurality of switching nuts 42 with different specifications can be prepared, when which pressure head is needed to participate in the work, the switching nuts 42 with corresponding specifications can be selected to be connected to the switching screw 41 in a threaded manner, the corresponding switching nuts 42 are matched with corresponding avoiding holes to eject the corresponding pressure heads, and the general switching principle is the same as that described above and is not repeated here.

In this embodiment, the first avoidance hole 321 is coaxial with the inner pressure head 31, so that when the switching screw 41 applies a downward pressure to the inner pressure head 31, the downward pressure can be applied to the middle part of the inner pressure head 31, so that the inner pressure head 31 is balanced in stress and is easier to eject; also, the second escape hole 331 is coaxial with the intermediate ram 32, so that when the switching screw 41 and the switching nut 42 apply a pressing force to the intermediate ram 32, the pressing force can be applied to the middle portion of the intermediate ram 32, so that the force applied to the intermediate ram 32 is balanced and the ejection is easier.

The lower extreme of middle pressure head 32 is connected with first spacing end cover 34, and first spacing end cover 34 has the inboard first spacing portion 341 of middle pressure head 32 that is located, and the periphery of inboard pressure head 31 is formed with first spacing protruding 311, and when switching assembly 40 was ejecting inboard pressure head 31, first spacing protruding 311 can with the butt of first spacing portion 341 to the extension length of restriction inboard pressure head 31. The lower extreme of outside pressure head 33 is connected with second spacing end cover 35, and second spacing end cover 35 has the inboard second spacing portion 351 that is located outside pressure head 33, and the periphery of middle pressure head 32 is formed with second spacing protruding 322, and when switching assembly 40 was ejecting middle pressure head 32, second spacing protruding 322 can with the butt of second spacing portion 351 to the extension length of restriction middle pressure head 32.

The mounting bracket 10 includes mounting panel 11, lower mounting panel 12 and stand 13, and the interval sets up about last mounting panel 11 and lower mounting panel 12, and stand 13 is connected between last mounting panel 11 and lower mounting panel 12, and driving piece 20 sets up in last mounting panel 11, and driving piece 20 is electric cylinder, cylinder or pneumatic cylinder, and the drive end of driving piece 20 passes last mounting panel 11 and is located the pressure head subassembly 30 drive between last mounting panel 11 and the lower mounting panel 12, and the bearing 100 of waiting the pressure equipment can be placed in lower mounting panel 12. Preferably, a column mounting seat 15 is arranged on the lower mounting plate 12, a column connecting hole is formed in the upper mounting plate 11, the lower end of the column 13 is arranged in the column mounting seat 15, an external thread is arranged at the upper end of the column 13, and the upper end of the column 13 passes through the column connecting hole and then is in threaded connection with a fixing nut.

The mounting bracket 10 still includes middle mounting panel 14, and middle mounting panel 14 is located between mounting panel 11 and the lower mounting panel 12, has offered the guiding hole on the middle mounting panel 14, is provided with uide bushing 60 in the guiding hole, and ram assembly 30 can follow uide bushing 60 to can lead the removal of ram assembly 30, guarantee the straightness accuracy of ram assembly 30 lift. Preferably, the upright 13 is arranged through the middle mounting plate 14, and a spacer 16 sleeved on the upright 13 is arranged on the upright 13 fixing seat, and the spacer 16 is used for supporting the middle mounting plate 14.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. A bearing press-fitting apparatus, comprising:

a mounting frame (10);

a driving member (20) provided on the mounting frame (10);

the pressure head assembly (30) is arranged at the driving end of the driving piece (20), the pressure head assembly (30) can be driven by the driving piece (20) to lift, and the pressure head assembly (30) comprises a plurality of pressure heads with different specifications;

and the switching assembly (40) is used for selectively switching any one of the plurality of pressure heads to an operating state.

2. The bearing press-fitting device according to claim 1, wherein a plurality of said press heads are sequentially sleeved from the inside to the outside from the outside to the outside, when said press heads located at the outermost side are in the operating state, the remaining press heads are retracted into said press heads located at the outermost side, and when any of said press heads other than said press heads located at the outermost side are in the operating state, said switching assembly (40) can eject said press heads corresponding to said press heads located at the operating state out of said press heads located at the outermost side.

3. Bearing press-fitting device according to claim 1 or 2, characterized in that the number of press-fitting heads is three, comprising an inner press-fitting head (31), an intermediate press-fitting head (32) fitted over the outer side of the inner press-fitting head (31), and an outer press-fitting head (33) fitted over the outer side of the intermediate press-fitting head (32).

4. A bearing press-fit device according to claim 3, characterized in that the switching assembly (40) comprises a switching screw (41) and a switching nut (42), the driving end of the driving member (20) is connected with a connecting frame (50), the outer ram (33) is connected with the connecting frame (50), the switching screw (41) is screwed to the connecting frame (50), and the switching nut (42) is screwed to the switching screw (41);

a first avoidance hole (321) is formed in the top end of the middle pressure head (32), a second avoidance hole (331) is formed in the top end of the outer pressure head (33), the diameter of the first avoidance hole (321) is larger than the outer diameter of the switching screw (41) and smaller than the outer diameter of the switching nut (42), and the diameter of the second avoidance hole (331) is larger than the outer diameter of the switching nut (42); the switching screw (41) is opposite to the first avoiding hole (321) and the second avoiding hole (331), and the switching screw (41) is coaxial with the first avoiding hole (321) and the second avoiding hole (331).

5. The bearing press-fitting device according to claim 4, wherein the first relief hole (321) is coaxial with the inner ram (31), and the second relief hole (331) is coaxial with the intermediate ram (32).

6. A bearing press-fitting device as claimed in claim 3, wherein a first limit end cap (34) is connected to the lower end of the intermediate ram (32), the first limit end cap (34) has a first limit portion (341) located inside the intermediate ram (32), a first limit projection (311) is formed on the outer periphery of the inner ram (31), and when the inner ram (31) is ejected by the switching assembly (40), the first limit projection (311) can abut against the first limit portion (341) to limit the protruding length of the inner ram (31).

7. A bearing press-fitting device as claimed in claim 3, wherein a second limit end cap (35) is connected to the lower end of the outer ram (33), the second limit end cap (35) has a second limit portion (351) located inside the outer ram (33), a second limit projection (322) is formed on the outer periphery of the intermediate ram (32), and when the intermediate ram (32) is ejected by the switching assembly (40), the second limit projection (322) can abut against the second limit portion (351) to limit the protruding length of the intermediate ram (32).

8. The bearing press-fit device according to claim 1, wherein the mounting frame (10) comprises an upper mounting plate (11), a lower mounting plate (12) and a stand column (13), the upper mounting plate (11) and the lower mounting plate (12) are arranged at an upper-lower interval, the stand column (13) is connected between the upper mounting plate (11) and the lower mounting plate (12), the driving member (20) is arranged on the upper mounting plate (11), the press-fit head assembly (30) is arranged between the upper mounting plate (11) and the lower mounting plate (12), and the bearing (100) to be press-fitted can be placed on the lower mounting plate (12).

9. The bearing press-fit device according to claim 8, wherein the mounting frame (10) further comprises an intermediate mounting plate (14), the intermediate mounting plate (14) is located between the upper mounting plate (11) and the lower mounting plate (12), a guide hole is formed in the intermediate mounting plate (14), a guide sleeve (60) is disposed in the guide hole, and the ram assembly (30) can move along the guide sleeve (60).

10. Bearing press-fit device according to claim 1, characterized in that the driving member (20) is an electric, pneumatic or hydraulic cylinder.