KR101876670B1 - Slide type press joint apparaus - Google Patents

Abstract

Disclosed is a sliding press joint apparatus including a punch unit for pressing a workpiece, and a lower support unit having a receiving space for receiving a desired portion of the workpiece which is pressed by the punch unit. The lower support unit has a matrix forming a desired space, in which a plurality of workpiece are pressed, in the housing, a plurality of stationary walls protruding along the matrix in a radial direction, and a plurality of blades engaged with the stationary walls in a radial direction, with a desired gap being formed between the blades and the stationary walls. The blade slides outwardly in a circumferential direction along a moving shaft of the punch unit as a center axis by a deformed volume of the workpieces which are pressed by the punch unit. Since the sliding press joint apparatus presses and engages the plates, durability of the plate is increased, and the plates are uniformly engaged to use the plate for a long time. Moreover, the process of engaging the plates is simplified to improve work efficiency.

Description

[0001] SLIDE TYPE PRESS JOINT APPARAUS [0002]

More particularly, the present invention relates to a press joint apparatus in which a predetermined portion of a target object is pressed and joined.

In a field such as an automobile exterior, an outer surface of an aircraft, and a floor panel made of a steel plate, two flat panel panels are bonded to each other in a face-to-face manner. In the technique of making a flat connection between these panels, Welding), joining through joining such as burring, pinning, or riveting.

On the other hand, in the case where an adhesive or welding can not be used for the environmentally friendly certification, a burring compression method in which a hole is formed between the panels and a plate is fitted is used. Specifically, the burring compression method is a method of forming a rectangular groove on a plate and making a hole in a plate to be coupled with the corner by folding the corner of the square groove of the lower panel over the upper panel.

However, when the impact is applied to the plate, the burring compression method can not concentrate the impact evenly and can concentrate on the place where the folding occurs. Therefore, a plurality of plates coupled by using the burring compression method may have poor durability against repetitive impacts or large impacts, and the joints may be detached, so that they may not be used for a long period of time.

Provided is a press joint device capable of increasing the impact resistance and durability of the entire plate by pressing and bonding a plurality of plates.

The present invention provides a press joint device which can be used for a long period of time while simplifying the joining process and improving the working efficiency.

A slide joint type press joint apparatus according to the present invention will be described. A slide joint type press joint device includes a punch unit for pressing a plurality of overlapping objects and a lower support unit for forming and supporting a space for accommodating a predetermined portion of the object to be pressed by the punch unit, A matrix forming a predetermined space in which the plurality of objects are squeezed into the housing, a plurality of fixed walls projecting radially along the periphery of the matrix, and a plurality of fixed walls spaced apart from the fixed walls And a plurality of blades radially joined to the punch unit, wherein the blades are arranged in a circumferential outer side with respect to a center axis of the moving axis of the punch unit by a deformation volume of the plurality of objects formed by pressing the plurality of objects by the punch unit As shown in Fig.

According to one aspect of the present invention, the blade may include a connecting portion connected to the housing, and a guide portion protruding in a helical shape on at least one surface of the connecting portion.

According to one aspect, the housing may include an insertion groove into which the connection portion is inserted and a helical guide groove formed on one side of the insertion groove.

According to one aspect of the present invention, the blade can be rotated in the direction of the fixed wall while the guide part is moved along the guide groove and slides outward in the circumferential direction, by a deformation volume formed by pressing the object.

According to one aspect of the present invention, the blade may further include a forming unit configured to limit a deformed volume of the protruding shape of the object, and a movement restricting unit configured to move a predetermined distance formed between the matrix and the protruding part protruding from the housing have.

" 형상의 단면이 원호로 연장되는 형상일 수 있다. According to one aspect,

Quot; may be a shape in which the cross section of the shape extends to an arc.

According to one aspect, the blade can be circumferentially and rotationally restricted by the housing or the fixing wall.

According to one aspect, the lower support unit may further include a plurality of elastic members disposed between the plurality of fixing walls and the plurality of blades.

According to one aspect, the blade returns to the initial position upon removal of the plurality of objects by the restoring force of the elastic member pressed between the blade and the fixed wall moved according to the deformed volume of the plurality of objects to be pressed .

According to one aspect, the elastic member may have a circular cross section extending in one direction.

Impact resistance of combined plates is high and long-term use is possible

Further, the joining process of the plate is simple and the working efficiency is high.

1 is a front sectional view schematically showing a press joint apparatus according to an embodiment.
2 is a plan sectional view schematically showing a lower support unit according to an embodiment.
3 is a perspective view schematically showing a blade according to an embodiment.
FIG. 4A is a schematic view schematically showing the driving state of the press joint apparatus according to the embodiment. FIG.
4B is a schematic view schematically showing a driving state of the lower supporting unit according to the embodiment.

Hereinafter, embodiments will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In the following description of the embodiments, detailed description of known functions and configurations incorporated herein will be omitted when it may make the best of an understanding clear.

In describing the components of the embodiment, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; may be "connected," "coupled," or "connected. &Quot;

FIG. 1 is a front sectional view schematically showing a press joint apparatus according to an embodiment, and FIG. 2 is a plan sectional view schematically showing a lower support unit according to an embodiment.

Referring to Figs. 1 and 2, the press joint apparatus 1 includes a punch unit 10 and a lower support unit 20.

The press joint device 1 supports a plurality of overlapping target bodies P by a lower support unit 20 so that a predetermined portion of the target body P is pressed and joined to the punch unit 10. A predetermined portion of the object P to be pressed on the press joint device 1 is projected and engaged.

The object P may be the same material as the first object P1 and the second object P2 but may be different from each other and the material and the shape should not be interpreted as being limited to some application examples. Although the first object P1 and the second object P2 are made of the same material and are coupled by a mechanical method of the clinching method, in another example, the first object P1 in the form of a plate- And a plate-like second object P2 made of a rolled steel material may be joined to the press joint device 1 by a plurality of partial squeezed portions.

The punching unit 10 drives up and down to press a plurality of overlapping objects P thereon. The punching unit 10 has a crushing portion 11 for crushing a target object P in a truncated conical shape so as to press a predetermined portion of the target P in a circular shape. The driving of the punching unit 10 can be driven by a generally used hydraulic piston or the like, and a description thereof will be omitted.

The lower supporting unit 20 forms and supports a receiving space in which a predetermined portion of the object P to be pushed by the punching unit 10 is received. For example, the lower support unit 20 may have a circular space formed therein to support the object P pressed by the punch unit 10 to form a shape in which a predetermined portion protrudes downward.

The lower support unit 20 includes a housing 21, a matrix 22, a blade 23, a fixing wall 24, and an elastic member 25.

The housing 21 accommodates the matrix 22 therein. For example, the housing 21 may have a cylindrical shape, and the upper surface may be circularly opened so as to accommodate the matrix 22 therein. The housing 21 may have a protrusion 211 having an inner circumferential surface located at an upper side of the coupling portion of the matrix 22 protruding at a predetermined interval so that the matrix 22 accommodated therein may be fixed.

An insertion groove 212 is formed in the inner peripheral surface of the protrusion 211 of the housing 21 so that the blade 23 can be connected. For example, the insertion groove 212 may be formed at a predetermined interval so that the blade 23 is connected to the protrusion 211 of the upper inner circumferential surface, and a circular opening may be formed with respect to the direction in which FIG. 2 is viewed. That is, the protrusion 211 may be formed with a rectangular opening.

In addition, at least one helical guide groove 213 is further formed on one surface of the insertion groove 212 of the housing 21. For example, a helical guide groove 213 may be formed on the upper surface of the insertion groove 212, and the guide groove 213 may be formed such that the blade 23 is slid in the circumferential direction about the axis of movement of the punch unit 10 . ≪ / RTI >

The matrix 22 is accommodated in the housing 21 and can form a predetermined space in which a plurality of objects P are squeezed. The matrix 22 may be in the shape of a cylinder and may form a predetermined distance from the protrusion 211 of the housing 21 and protrude in a circular shape from which the object P is squeezed.

The blade 23 can be engaged at a predetermined interval formed by the protrusion 211 of the housing 21 and the matrix 22. A plurality of blades 23 are radially coupled. The number of the blades 23 is not limited, and at least two or more blades are preferably combined.

3 is a perspective view schematically showing a blade according to an embodiment.

" 형상의 단면이 원호로 연장되는 형상이다. 블레이드(23)는 형성부(231), 이동제한부(232), 연결부(233), 가이드부(234)를 포함한다. Referring to Fig. 3, the blade 23 is a "

The blade 23 includes a forming portion 231, a movement restricting portion 232, a connecting portion 233, and a guide portion 234. As shown in FIG.

" 형상의 단면의 상부로 대상체(P)의 압착면이 압착되어 돌출되는 형상을 제한하도록 매트릭스(22) 상부 내측에 위치한다. 형성부(231)는 대상체(P)의 돌출되는 형상의 변형체적을 제한하여 균일한 형상의 돌출부가 형성될 수 있도록 할 수 있다. The forming portion 231 is "

Is positioned inside the top of the matrix 22 so as to limit the shape in which the pressing face of the object P is pressed and projected to the upper part of the cross section of the shape of the object P. The forming part 231 is a deformed volume So that protrusions having a uniform shape can be formed.

" 형상의 단면의 하부의 "I"자 단면이 매트릭스(22)와 하우징(21)의 돌출부 사이에 위치하도록 결합된다. 이동제한부(232)는 블레이드(23)가 매트릭스(22)와 하우징(21)에 형성되는 소정간격을 이동할 수 있도록 이동범위를 제한할 수 있다. 이러한, 이동제한부(232)는 형성부(231)가 항상 매트릭스(22)의 상부 내측에 위치하도록 소정두께로 형성될 수 있다. The movement restricting section 232 sets "

Quot; I "shaped cross section of the lower portion of the cross-section of the shape is located between the matrix 22 and the protrusion of the housing 21. The movement limiter 232 allows the blade 23 to move between the matrix 22 and the housing 21 The movement restricting portion 232 may be formed to have a predetermined thickness such that the forming portion 231 is always positioned inside the upper portion of the matrix 22 .

" 형상의 단면의 형성부(231)와 대향되는 면, 즉 매트릭스(22)의 외측으로 돌출되어 형성된다. 연결부(233)는 소정두께로 형성되어 하우징(21)의 삽입홈(212)에 연결될 수 있다. 연결부(233)의 일면에는 가이드부(234)가 나선형상으로 적어도 하나 이상 돌출된다. 가이드부(234)는 삽입홈(212)의 상면에 형성되는 가이드홈(213)과 대응되도록 형성된다. The connection portion 233 is "

The connection part 233 is formed to have a predetermined thickness and is connected to the insertion groove 212 of the housing 21. The connection part 233 is formed to protrude outward from the surface of the matrix 22, At least one guide part 234 protrudes in a spiral shape on one side of the connection part 233. The guide part 234 is formed to correspond to the guide groove 213 formed on the upper surface of the insertion groove 212 do.

Returning to Figs. 1 and 2 again, the blade 23 can be slid in the circumferential direction about the center axis of the moving shaft of the punch unit 10 by the deforming volume formed by pressing the plurality of objects P. In addition, the blade 23 moves along the guide groove 213 and is rotated in the direction of the fixed wall in which the elastic member is located while being slid outward in the circumferential direction.

A plurality of fixing walls 24 are protruded along the periphery of the matrix 22 to form a predetermined gap therebetween. A plurality of blades 23 may be coupled with the fixed wall 24 by forming a predetermined gap between the plurality of fixed walls 24. Therefore, it is preferable that the number of the fixed walls 24 and the number of the blades 23 are the same. The fixed wall 24 limits the rotational movement of the blade 23.

Such circumferential outward and inward movement of the blade 23 can be limited by the housing 21 and the rotational movement of the blade 23 can be limited by the fixed wall 24. [

The elastic member 35 is disposed between the fixed wall 34 and the blade 23. The elastic member 35 can be disposed and pressed in the rotational movement path of the blade 23 when the plurality of objects P are pressed and the blade 23 is moved. When the plurality of objects P pressed by the lower supporting unit 20 are removed, the blade 23 can be returned to the initial position by the restoring force of the pressed elastic members 35. [ The elastic members 35 are of the same number as the blades 23 and the fixing walls 24.

For example, the elastic member 35 having a shape in which the end face of the circular shape extends in one direction can be disposed in the rotational movement direction of the blade 23 when the object P is compressed, and the circular elastic member 35 Is compressed by the blade 23 that moves along the guide groove 213 and is compressed into an elliptical shape so that when the object P is removed the restoring force of the elastic member 35 causes the blade 23 to move to the initial position Lt; / RTI >

FIG. 4A is a schematic view schematically showing a driving state of a press joint apparatus according to an embodiment, and FIG. 4B is a schematic view schematically showing a driving state of a lower supporting unit according to an embodiment.

4A to 4B, the object P supported by the lower supporting unit 20 is pressed by the punching unit 10. As shown in FIG. The object P is pressed onto the matrix 22 of the lower supporting unit 20 by the punching unit 10 and is projected in a predetermined shape.

The blade 23 is slid outward in the circumferential direction about the center axis of the moving shaft of the punch unit 10 by the deformation volume of the object P. [ The blade 23 is pressed against the elastic member 25 coupled between the fixed wall 24 and the blade 23 and is also slid in the rotating direction so as to be slid to a predetermined distance from the housing 21 to the fixed wall 24 . The blade 23 slides on the housing 21 and the fixing wall located on one side along the guide groove 213 of the helical shape of the housing 21 connected to the guide portion 234 to form a predetermined space on the matrix 22 . Through this process, the object P protrudes in a shape corresponding to a predetermined space and is compressed and joined.

When the object P is separated, the blade 23 is returned to the original position along the guide groove 213 while the elastic member 25 is returned to the original state.

This process is repeated so that at least one predetermined portion of one surface of the overlapping plural objects P is squeezed and combined.

According to the embodiment, the durability of the entire plate can be improved by pressing and bonding a plurality of plates.

Further, a plurality of plates can be uniformly combined and used for a long time.

In addition, it is possible to simplify the process of joining a plurality of plates, thereby improving work efficiency.

Although the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, And various modifications and changes may be made thereto without departing from the scope of the present invention. Accordingly, the spirit of the present invention should not be construed as being limited to the embodiments described, and all of the equivalents or equivalents of the claims, as well as the following claims, belong to the scope of the present invention .

P: object 1: press joint device
10: punch unit 11:
20: lower support unit 21: housing
211: protrusion 212: insertion groove
213: Guide groove 22: Matrix
23: blade 231: forming part
232: movement restricting portion 233:
234: guide part 24: fixed wall
25: elastic member

Claims (10)

A punching unit for pressing a plurality of overlapping objects; And
A lower supporting unit for forming and supporting a receiving space in which a predetermined portion of the object pressed by the punch unit is received;
/ RTI >
Wherein the lower support unit comprises:
housing;
A matrix forming a predetermined space in which the plurality of objects are squeezed into the housing;
A plurality of fixed walls radially protruding along the periphery of the matrix; And
A plurality of blades radially coupled to the fixing wall, the plurality of blades being spaced apart from the fixing wall by a predetermined distance, the connecting portion being connected to the housing, and a guide portion protruding in a helical shape on at least one side of the connecting portion;
Lt; / RTI >
Wherein the blade slides in the circumferential direction outward with respect to the center axis of the moving shaft of the punch unit by the deformation volume of the plurality of objects formed by pressing the plurality of objects with the punch unit. delete The method according to claim 1,
The housing includes:
An insertion groove into which the connection portion is inserted; And
A helical guide groove formed on at least one surface of the insertion groove;
And a press-joint device for a slide-type press joint. The method of claim 3,
The blade
Wherein the guide portion is moved along the guide groove and slides outward in the circumferential direction by the deformed volume formed by pressing the object, thereby rotating in the fixed wall direction. The method according to claim 1,
The blade
A forming unit configured to limit a deformed volume of the protruding shape of the object; And
A movement restricting portion formed to move between the matrix and a protruding portion protruding from the housing;
Further comprising: a slide-type press jointing device for moving the press joint device. The method according to claim 1,
The blade
"

"The press joint device of the slide type wherein the cross section of the shape extends in an arc. The method according to claim 1,
The blade
Wherein the housing or the fixing wall restricts circumferential movement and rotational movement by the housing or the fixing wall. The method according to claim 1,
Wherein the lower support unit comprises:
A plurality of elastic members disposed between the plurality of fixing walls and the plurality of blades;
Further comprising: a slide-type press jointing device for moving the press joint device. 9. The method of claim 8,
The blade
And returning to the initial position upon removal of the plurality of objects by the restoring force of the elastic members pressed between the blade and the fixed wall moved according to the deformed volume of the plurality of objects to be pressed. A punching unit for pressing a plurality of overlapping objects; And
A lower supporting unit for forming and supporting a receiving space in which a predetermined portion of the object pressed by the punch unit is received;
/ RTI >
Wherein the lower support unit comprises:
housing;
A matrix forming a predetermined space in which the plurality of objects are squeezed into the housing;
A plurality of fixed walls radially protruding along the periphery of the matrix;
A plurality of blades radially joined to each other with a predetermined gap between the plurality of fixed walls and a fixed wall; And
A plurality of elastic members having a shape in which a cross section of a circular shape extends in one direction and which are disposed between the plurality of fixing walls and the plurality of blades;
Lt; / RTI >
Wherein the blade slides in the circumferential direction outward with respect to the center axis of the moving shaft of the punch unit by the deformation volume of the plurality of objects formed by pressing the plurality of objects with the punch unit.

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