CN215846763U

CN215846763U - Press fit jig

Info

Publication number: CN215846763U
Application number: CN202120137520.2U
Authority: CN
Inventors: 陈连友; 顾泮; 朱川峰; 陈鄂云; 郑国辉; 方可
Original assignee: Jinjihu Precision Machienry Wuhan Co ltd
Current assignee: Jinjihu Precision Machienry Wuhan Co ltd
Priority date: 2021-01-19
Filing date: 2021-01-19
Publication date: 2022-02-18
Anticipated expiration: 2031-01-19

Abstract

A pressing jig is used for pressing a shaft sleeve into a through hole of a shaft seat and comprises a support, a pressing assembly and a fixing table, wherein the support comprises a top plate and a bottom plate arranged away from the top plate. The pressing assembly comprises a driving piece and a pressing piece, the pressing piece is arranged between the top plate and the bottom plate, the driving piece is arranged on the top plate and is in transmission connection with the pressing piece, and the pressing piece is used for fixing the shaft sleeve. The fixed station is arranged on the bottom plate and comprises a fixed part, the fixed part is arranged opposite to the pressing part, and the fixed part is used for limiting the shaft seat. The driving piece is used for driving the pressing piece to move towards the fixing portion, so that the shaft sleeve and the shaft seat are pressed. The application provides a pressfitting tool supports through driving piece drive press part and pushes away the axle sleeve to through the spacing axle bed of fixed part, thereby realize pressfitting axle sleeve and axle bed, be strong in reduction in production cost and improve the stability of follow-up product.

Description

Press fit jig

Technical Field

The application relates to the field of jigs, especially relates to a pressfitting tool.

Background

The shaft sleeve is a cylindrical mechanical part sleeved on the rotating shaft and is a component of the sliding bearing, and the shaft sleeve and the bearing seat are in interference fit.

In general, the assembly of the shaft sleeve and the bearing seat is completed through manual pressing, so that the labor intensity is high, and the quality of a pressed product is unstable.

SUMMERY OF THE UTILITY MODEL

In view of the above, a pressing fixture is needed to improve the pressing quality of the product and reduce the labor cost.

The utility model provides a press fit jig for with the axle sleeve impress in the via hole of axle bed, press fit jig includes support, pressing components and fixed station, the support include the roof and with the bottom plate that the roof set up apart from. The pressing assembly comprises a driving piece and a pressing piece, the pressing piece is arranged between the top plate and the bottom plate, the driving piece is arranged on the top plate and is in transmission connection with the pressing piece, and the pressing piece is used for fixing the shaft sleeve. The fixing table is arranged on the bottom plate and comprises a fixing portion, the fixing portion and the pressing piece are arranged oppositely, and the fixing portion is used for limiting the shaft seat. The driving piece is used for driving the pressing piece to move towards the fixing portion, so that the shaft sleeve and the shaft seat are pressed.

Further, the driving piece comprises a cylinder body and a movable shaft, the movable shaft is connected with the cylinder body in a transmission mode, one end, far away from the cylinder body, of the movable shaft penetrates through the top plate, the pressing piece comprises a pressing head and a fixing ring connected to the pressing head, the fixing ring is sleeved at one end, far away from the cylinder body, of the movable shaft, and the pressing head is used for fixing the shaft sleeve.

Furthermore, the pressing part further comprises an installation part, the pressing head comprises a first surface, a second surface opposite to the first surface and a third surface connected to the first surface and the second surface, the first surface faces the bottom plate, the installation part is arranged on the first surface in a protruding mode, and the installation part is used for being connected with the shaft sleeve.

Further, the fixed station further comprises a limiting table, the limiting table comprises a fourth surface, a fifth surface opposite to the fourth surface and a sixth surface connected to the fourth surface and the fifth surface, the fourth surface faces the top plate, the limiting table is provided with a limiting through hole and a limiting groove, the limiting through hole penetrates through the fourth surface and the fifth surface, the movable shaft is movably accommodated in the limiting through hole, the sixth surface is sunken inwards to form the limiting groove, the limiting groove is communicated with the limiting through hole, the pressure resisting head is exposed out of the sixth surface, and the pressure resisting head is movably accommodated in the limiting groove.

Further, the limiting table is provided with a limiting sheet and a limiting sheet accommodating groove, the sixth surface is recessed inwards to form the limiting sheet accommodating groove, the limiting sheet accommodating groove is communicated with the limiting groove, the limiting sheet is accommodated in the limiting sheet accommodating groove, and the limiting sheet is used for abutting against the third surface.

Further, the fixing portion comprises an anvil block and a positioning pin, the anvil block is arranged on the sixth surface, the anvil block comprises a seventh surface and an eighth surface opposite to the seventh surface, the seventh surface corresponds to the first surface, the eighth surface is flush with the fifth surface, the seventh surface is recessed inwards to form a pin hole, the positioning pin is accommodated in the pin hole, the positioning pin is used for positioning a through hole of the shaft seat, and the seventh surface is used for pressing the shaft seat.

Furthermore, the fixed part still includes the elastic component, the elastic component accept in the pinhole, elastic component one end butt in the bottom of pinhole, the other end butt of elastic component in the locating pin, the locating pin passes through the elastic component mobilizable accept in the pinhole.

Further, the fixed station still includes the base pad, the base pad set up in spacing platform reaches between the bottom plate.

Further, the driving piece is a cylinder with adjustable stroke.

Furthermore, the pressing jig further comprises two switches which are electrically connected in series, the switches are arranged on the bottom plate at intervals, and the switches are used for controlling the driving piece to start or stop moving.

The application provides a pressfitting tool, through the driving piece drive the press part supports and pushes away the axle sleeve, and pass through the fixed part is spacing the axle bed, thereby realize the pressfitting axle sleeve and axle bed are used for the stability of reduction in production cost and improvement follow-up product effectively.

Drawings

Fig. 1 is a schematic perspective view of a pressing fixture according to an embodiment of the present application.

Fig. 2 is a cross-sectional view of the press-fitting jig shown in fig. 1 along line II-II.

Fig. 3 is a partial schematic view of the press-fitting jig shown in fig. 1 when the press-fitting jig is used to press-fit the shaft sleeve and the shaft seat.

Fig. 4 is a schematic view of the shaft sleeve and the shaft seat after being pressed by the pressing jig shown in fig. 1.

Description of the main elements

Pressing jig 100

Support 10

Top plate 11

Base plate 12

Support 13

Press-fit assembly 20

Driving device 21

Cylinder body 211

Movable shaft 212

Pressing piece 22

Pressing head 221

First surface 221b

Second surface 221a

Third surface 221c

Fixing ring 222

Mounting portion 223

Fixed table 30

Limiting table 31

Limiting through hole 311

Limiting groove 312

Position limiting sheet 313

Limiting sheet accommodating groove 314

Fourth surface 31a

Fifth surface 31b

Sixth surface 31c

Fixed part 32

Anvil 321

Seventh surface 321a

Eighth surface 321b

Positioning pin 322

Pin hole 323

Elastic member 324

Cushion seat 33

Switch 40

Shaft sleeve 200

Axle sleeve hole 201

Axle seat 300

Via 301

Axial line A

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following embodiments, features of the embodiments may be combined with each other without conflict.

Referring to fig. 1 and 4, in a press-fit jig 100 provided in an embodiment of the present application, the press-fit jig 100 is used for pressing a shaft sleeve 200 into a through hole 301 of a shaft seat 300, the press-fit jig 100 includes a bracket 10, a press-fit assembly 20 and a fixing table 30, the bracket 10 includes a top plate 11, a bottom plate 12 and a supporting rod 13, and the supporting rod 13 is supported between the top plate 11 and the bottom plate 12 so that the top plate 11 is disposed apart from the bottom plate 12.

The pressing assembly 20 includes a driving member 21 and a pressing member 22, the driving member 21 is disposed on the top plate 11, and the pressing member 22 is disposed between the top plate 11 and the bottom plate 12. The driving member 21 is connected to the pressing member 22 in a driving manner, and the pressing member 22 is used for pressing against the shaft sleeve 200.

The fixing table 30 is disposed on the bottom plate 12, the fixing table 30 includes a limiting table 31 and a fixing portion 32 disposed on the limiting table 31, the fixing portion 32 is disposed opposite to the pressing member 22, and the fixing portion 32 is used for limiting the shaft seat 300.

The driving member 21 is used for driving the pressing member 22 to move towards the fixing portion 32, so as to press the shaft sleeve 200 into the through hole 301 of the shaft seat 300.

The application provides a pressfitting tool 100, drive through driving piece 21 the press part 22 supports and pushes away axle sleeve 200, and pass through fixed part 32 is spacing axle bed 300, thereby realizes mechanized pressfitting axle sleeve 200 and axle bed 300 are favorable to reduction in production cost and the stability that improves follow-up product.

Referring to fig. 2, in the present embodiment, the driving member 21 includes a cylinder body 211 and a movable shaft 212, the movable shaft 212 is connected to the cylinder body 211 in a driving manner, and the pressing member 22 includes a pressing head 221 and a fixing ring 222 connected to the pressing head 221. One end of the movable shaft 212, which is far away from the cylinder body 211, passes through the top plate 11, the fixing ring 222 is sleeved on one end of the movable shaft 212, which is far away from the cylinder body 211, and the pressure-resisting head 221 is used for resisting and pushing the shaft sleeve 200.

In this embodiment, the pressing element 22 further includes a mounting portion 223, the pressing head 221 includes a first surface 221b, a second surface 221a opposite to the first surface 221b, and a third surface 221c connected to the first surface 221b and the second surface 221a, the first surface 221b and the second surface 221a are perpendicular to the axial line a of the movable shaft 212, and the first surface 221b faces the bottom plate 12. The mounting portion 223 protrudes from the first surface 221b, the mounting portion 223 is used for connecting the shaft sleeve 200, and the first surface 221b is used for pushing against the shaft sleeve 200. The mounting portion 223 is a deformable plastic body, the shaft sleeve 200 is provided with a shaft sleeve hole 201, and the plastic body can be inserted into and withdrawn from the shaft sleeve hole 201 through deformation.

In this embodiment, the position limiting table 31 includes a fourth surface 31a, a fifth surface 31b opposite to the fourth surface 31a, and a sixth surface 31c connected to the fourth surface 31a and the fifth surface 31b, wherein the fourth surface 31a faces the top plate 11. The limiting table 31 is provided with a limiting through hole 311 and a limiting groove 312, the limiting through hole 311 penetrates through the fourth surface 31a and the fifth surface 31b, the movable shaft 212 is movably accommodated in the limiting through hole 311, the sixth surface 31c is recessed inwards to form the limiting groove 312, the limiting groove 312 is communicated with the limiting through hole 311, the pressure head 221 is exposed out of the sixth surface 31c, and the pressure head 221 is movably accommodated in the limiting groove 312.

Referring to fig. 1 again, in the present embodiment, the limiting table 31 is provided with a limiting piece 313 and a limiting piece accommodating groove 314, the sixth surface 31c is recessed inward to form the limiting piece accommodating groove 314, the limiting piece accommodating groove 314 is communicated with the limiting groove 312, the limiting piece 313 is accommodated in the limiting piece accommodating groove 314, and the limiting piece 313 is used for abutting against the third surface 221c, so as to limit the rotation of the pressure abutting head 221, and further, the pressure abutting head 221 can only reciprocate along the axial line a direction.

In this embodiment, the fixing portion 32 includes an anvil 321 and a positioning pin 322, the anvil 321 is disposed on the sixth surface 31c, the anvil 321 includes a seventh surface 321a and an eighth surface 321b opposite to the seventh surface 321a, the seventh surface 321a corresponds to the first surface 221b, the eighth surface 321b is flush with the fifth surface 31b, the anvil 321 is provided with a pin hole 323, the seventh surface 321a is recessed inward to form a pin hole 323, the positioning pin 322 is received in the pin hole 323, the positioning pin 322 is used to position the through hole 301 of the shaft seat 300, and the seventh surface 321a is used to push against the shaft seat 300.

Referring to fig. 3 and 4, in the present embodiment, the fixing portion 32 further includes an elastic member 324, the elastic member 324 is accommodated in the pin hole 323, one end of the elastic member 324 abuts against the bottom of the pin hole 323, the other end of the elastic member 324 abuts against the positioning pin 322, and the positioning pin 322 is movably accommodated in the pin hole 323 through the elastic member 324. When the shaft seat is used, the positioning pin 322 is sleeved with the via hole 301, when the pressure resisting head 221 drives the shaft sleeve 200 to move towards the shaft seat 300, the shaft sleeve 200 slowly extrudes the positioning pin 322 into the pin hole 323, after the pressing is completed, the pressed shaft seat 300 and the pressed shaft sleeve 200 are taken down, and the positioning pin 322 is ejected out of the pin hole 323 by the elastic piece 324. Wherein the elastic member 324 is a compression spring.

In this embodiment, the fixing table 30 further includes a pad seat 33, and the pad seat 33 is disposed between the limiting table 31 and the bottom plate 12. The cushion seat 33 is used for raising the limit table 31, so that there is enough space between the limit table 31 and the bottom plate 12 for placing the shaft seat 300.

In this embodiment, the driving member 21 is an air cylinder with adjustable stroke, so as to adapt to the shaft sleeve 200 and the shaft seat 300 with different sizes.

In this embodiment, the pressing fixture 100 further includes two switches 40 electrically connected in series, the switches 40 are disposed on the bottom plate 12 at a distance, the switches 40 are used for controlling the driving member 21 to be turned on and off, and when the pressing fixture is used, an operator needs to press the two switches 40 with the left hand and the right hand simultaneously to start the driving member 21, so as to avoid potential safety hazards caused by one-hand operation.

Although the present application has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the present application. Those skilled in the art can make other changes and the like in the design of the present application within the spirit of the present application as long as they do not depart from the technical effects of the present application. Such variations are intended to be included within the scope of this disclosure as claimed.

Claims

1. A pressing jig for pressing a shaft sleeve into a through hole of a shaft seat is characterized by comprising a support, a pressing assembly and a fixing table, wherein the support comprises a top plate and a bottom plate arranged at a distance from the top plate,

the pressing component comprises a driving piece and a pressing piece, the pressing piece is arranged between the top plate and the bottom plate, the driving piece is arranged on the top plate and is in transmission connection with the pressing piece, and the pressing piece is used for fixing the shaft sleeve;

the fixing table is arranged on the bottom plate and comprises a fixing part, the fixing part is arranged opposite to the pressing part, and the fixing part is used for limiting the shaft seat;

the driving piece is used for driving the pressing piece to move towards the fixing portion, so that the shaft sleeve and the shaft seat are pressed.

2. The pressing fixture according to claim 1, wherein the driving member includes a cylinder body and a movable shaft, the movable shaft is connected to the cylinder body in a driving manner, an end of the movable shaft away from the cylinder body passes through the top plate, the pressing member includes a pressing head and a fixing ring connected to the pressing head, the fixing ring is sleeved on an end of the movable shaft away from the cylinder body, and the pressing head is used for fixing the shaft sleeve.

3. The pressing jig according to claim 2, wherein the pressing member further includes a mounting portion, the pressing head includes a first surface, a second surface opposite to the first surface, and a third surface connected to the first surface and the second surface, the first surface faces the bottom plate, the mounting portion is protruded from the first surface, and the mounting portion is used for connecting the shaft sleeve.

4. A press-fit jig according to claim 3, wherein the fixed stand further comprises a limiting stand, the limiting stand comprises a fourth surface, a fifth surface opposite to the fourth surface, and a sixth surface connected to the fourth surface and the fifth surface, the fourth surface faces the top plate, the limiting stand is provided with a limiting through hole and a limiting groove, the limiting through hole penetrates through the fourth surface and the fifth surface, the movable shaft is movably accommodated in the limiting through hole, the sixth surface is recessed inwards to form the limiting groove, the limiting groove is communicated with the limiting through hole, the pressing head is exposed out of the sixth surface, and the pressing head is movably accommodated in the limiting groove.

5. The pressing fixture according to claim 4, wherein the position-limiting platform has a position-limiting piece and a position-limiting piece receiving groove, the sixth surface is recessed inward to form the position-limiting piece receiving groove, the position-limiting piece receiving groove is communicated with the position-limiting groove, the position-limiting piece is received in the position-limiting piece receiving groove, and the position-limiting piece is used for abutting against the third surface.

6. The press fit jig according to claim 4, wherein the fixing portion includes an anvil and a positioning pin, the anvil is disposed on the sixth surface, the anvil includes a seventh surface and an eighth surface opposite to the seventh surface, the seventh surface corresponds to the first surface, the eighth surface is flush with the fifth surface, the seventh surface is recessed inward to form a pin hole, the positioning pin is received in the pin hole, the positioning pin is used for positioning the through hole of the shaft seat, and the seventh surface is used for press fitting the shaft seat.

7. The press-fit jig according to claim 6, wherein the fixing portion further comprises an elastic member, the elastic member is received in the pin hole, one end of the elastic member abuts against the bottom of the pin hole, the other end of the elastic member abuts against the positioning pin, and the positioning pin is movably received in the pin hole through the elastic member.

8. The press-fit jig according to claim 4, wherein the fixing table further comprises a pad seat, and the pad seat is disposed between the limiting table and the bottom plate.

9. The pressing jig according to claim 1, wherein the driving member is a cylinder with an adjustable stroke.

10. The bonding tool of claim 1, further comprising two switches electrically connected in series, wherein the switches are disposed on the bottom plate at a distance, and the switches are used to control the driving member to start or stop moving.