CN110814699A

CN110814699A - Axial floating pressure head

Info

Publication number: CN110814699A
Application number: CN201911034536.4A
Authority: CN
Inventors: 荣俊林
Original assignee: Shanghai Tianyong Intelligent Equipment Co Ltd
Current assignee: Shanghai Tianyong Intelligent Equipment Co Ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-02-21

Abstract

The invention discloses an axial floating press head, comprising: the device comprises a positioning shaft core, a pressure head, a mandrel, an ejector rod, a floating shaft core, a plane thrust bearing, an o-shaped ring and a positioning sleeve; the positioning shaft core is connected with the ejector rod through the mandrel, the pressure head is sleeved outside the positioning shaft core, the floating shaft core is sleeved outside the ejector rod and can move in the floating shaft core, the positioning sleeve is sleeved outside the floating shaft core, and the floating shaft core and the o-shaped ring are sleeved between the plane thrust bearing and the positioning sleeve; the invention provides the floating pressure head which is good in axial floating effect and accurate in press fitting.

Description

Axial floating pressure head

Technical Field

The invention relates to the technical field of machinery, in particular to an axial floating pressure head.

Background

With the technological progress and the development of industry, the requirement on the automation degree of equipment is higher and higher, and modern factories gradually liberate workers by using automatic equipment, so that the yield and the quality of products are improved while the labor intensity is reduced. The existing automatic equipment covers all the phenomena, wherein a press-fitting process is an indispensable part in the field of automatic assembly, and whether the press-fitting precision meets the requirement directly determines the quality of a product. The press fitting precision mainly comprises coaxiality during press fitting and depth and flatness of the assembled part in the press fitting feeding direction, and the existing press head is easy to press fit unqualified workpieces and even damage the workpieces due to difference among different workpieces during assembly. The pressure head that floats alone is generally adopted in the trade, and this structural limitation is great, can't satisfy the axial demand of floating, causes the work piece of impressing to impress and has the error.

Chinese patent publication No. CN203875574U, a floating ram, discloses a floating ram; the device comprises a positioning pin shaft, a positioning pressure plate, a floating bearing, a positioning pin seat, a positioning sleeve, a return spring, a supporting plate, a tray, a jacking spring and a positioning base; the device comprises a positioning pin shaft, a positioning pressure plate, a floating bearing, a positioning pin seat, a positioning sleeve, a return spring, a supporting plate, a tray, a floating sleeve, a jacking spring and a positioning base; the floating bearing is arranged on the positioning pin boss; the positioning pin seat is arranged below the positioning pressure plate and is matched with the conical surface of the positioning pressure plate; the upper part of the floating bearing is contacted with the positioning pressure plate; the jacking spring is longitudinally arranged between the positioning pin seat and the positioning base; the positioning pin shaft is fixedly connected with the tray, the positioning pin shaft is fixedly arranged on the positioning pin seat, and a 2-3mm gap is formed between the tray and the positioning pressure plate; the floating pressure head slides upwards, and the positioning pin seat is matched with the conical surface of the positioning pressure plate to be disengaged; the whole workpiece is automatically positioned along the floating bearing in a universal manner.

However, the prior art still lacks a floating pressure head with good axial floating effect and accurate press fitting.

Disclosure of Invention

In order to solve the technical problems, the invention provides a floating pressure head with good axial floating effect and accurate press fitting, which comprises: the device comprises a positioning shaft core, a pressure head, a mandrel, an ejector rod, a floating shaft core, a plane thrust bearing, an o-shaped ring and a positioning sleeve; the location axle core passes through the dabber is connected the ejector pin, the pressure head cover is located outside the location axle core, unsteady axle core cover is located outside the ejector pin, just the ejector pin can the axle core that floats removes, the position sleeve cover is located outside the unsteady axle core, unsteady axle core with o type cover is located plane thrust bearing with between the position sleeve.

The floating shaft core enables the pressure head to float in the axial direction, the plane thrust bearing enables the axial floating of the pressure head to be more stable, and the o-shaped ring further promotes the axial floating of the pressure head.

Preferably, the floating shaft core and the o-shaped rings are 2, and the floating shaft core and the o-shaped rings are 2 and are sleeved at the left end and the right end of the plane thrust bearing.

Preferably, the axial floating pressure head provided by the invention further comprises a spring, and one end of the spring is connected with the ejector rod; the spring can realize the press-in and reset of the positioning shaft core and the ejector rod.

Preferably, the axial floating pressure head provided by the invention further comprises a connecting seat and a mounting seat, the top of the connecting seat is arranged at the tail end of the positioning sleeve, and the bottom of the connecting seat is arranged on the mounting seat.

Preferably, the bottom of the connecting seat is provided with a sliding block, the mounting seat is provided with a sliding rail matched with the sliding block, and the connecting seat can slide on the sliding rail of the mounting seat.

Compared with the prior art, the technical scheme of the invention has the beneficial effects that: according to the axial floating pressure head provided by the invention, the floating shaft core, the o-shaped ring and the plane thrust bearing act together to play a role in floating the pressure head in the axial direction.

Drawings

FIG. 1 is a cross-sectional view of an axially floating pressure head in an embodiment of the present invention;

FIG. 2 is a schematic perspective view of an axial floating pressure head according to an embodiment of the present invention;

in the drawings: 1. pressure head, 2, location axle core, 3, dabber, 4, ejector pin, 5, spring, 6, o type circle, 7, plane thrust bearing, 8, the axle core that floats, 9, connecting seat, 10, slide rail, 11, mount pad, 12, position sleeve.

The specific implementation mode is as follows:

the invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the invention, the axial floating is in the direction vertical to the pressure head.

Please refer to fig. 1 and fig. 2, which show a structure diagram of an axial floating press head, wherein the structure diagram includes a press head 1, a positioning shaft core 2, a mandrel 3, a push rod 4, a spring 5, an o-shaped ring 6, a planar thrust bearing 7, a floating shaft core 8, a connecting seat 9, a slide rail 10, a mounting seat 11, a positioning sleeve 12, the positioning shaft core 2 is connected with the push rod 4 through the mandrel 3, the press head 1 is sleeved outside the positioning shaft core 2, the floating shaft core 8 is sleeved outside the push rod 4, the push rod 4 can move in the floating shaft core 8, the positioning sleeve 12 is fixed by a screw and is sleeved outside the floating shaft core 8, the floating shaft core 8 and the o-shaped ring 6 are sleeved between the planar thrust bearing 7 and the positioning sleeve 12, one end of the spring 5 is connected with the push rod, the top of the connecting seat 9 is disposed at the end of the positioning sleeve 12.

In this embodiment, the mandrel 3 is an I-shaped metal mandrel, one end of which is connected to the positioning mandrel 2, and the other end of which is connected to the ejector rod 4.

In this embodiment, the ram 1 is a metal cylinder with a hollow interior.

In this embodiment, unsteady axle core 8 and o type circle are 2, and 2 unsteady axle cores 8 and 2 o type circles 6 all overlap and locate plane thrust bearing 7 both ends about, and 2 unsteady axle cores 8 are in the outside, and 2 o type circles 6 are in the inboard.

In this embodiment, a sliding block is disposed at the bottom of the connecting seat 9, a sliding rail 10 matching with the sliding block is disposed on the mounting seat 11, and the connecting seat 9 can slide on the sliding rail 10 of the mounting seat 11.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.

Claims

1. An axially floating press head, comprising: the device comprises a positioning shaft core, a pressure head, a mandrel, an ejector rod, a floating shaft core, a plane thrust bearing, an o-shaped ring and a positioning sleeve; the location axle core passes through the dabber is connected the ejector pin, the pressure head cover is located outside the location axle core, unsteady axle core cover is located outside the ejector pin, just the ejector pin can the axle core that floats removes, the position sleeve cover is located outside the unsteady axle core, unsteady axle core with o type cover is located plane thrust bearing with between the position sleeve.

2. The axial floating pressure head according to claim 1, wherein the floating shaft core and the o-rings are 2, and the 2 floating shaft cores and the 2 o-rings are sleeved at the left end and the right end of the plane thrust bearing.

3. The axially floating ram of claim 1, further comprising a spring having one end connected to the ram.

4. The axially floating ram as recited in claim 1, further comprising a connecting seat and a mounting seat, wherein a top portion of the connecting seat is disposed at an end of the locating sleeve and a bottom portion of the connecting seat is disposed on the mounting seat.

5. The axial floating pressure head according to claim 4, characterized in that the bottom of the connecting seat is provided with a sliding block, the mounting seat is provided with a sliding rail matched with the sliding block, and the connecting seat can slide on the sliding rail of the mounting seat.