CN115815440A - Pressing assembly, die and method for eliminating impression of inner plate and window frame of automobile door - Google Patents

Abstract

The invention relates to a pressing component, a die and a method for eliminating impressions of an inner plate and a window frame of an automobile door, wherein the pressing component is arranged in an upper concave die of the die and comprises a pressure device mounting plate, a pressure device, a cushion block and a small pressing plate, the top of the pressure device is fixedly connected with the pressure device mounting plate, the bottom of the pressure device is connected with one end of the cushion block, and the other end of the cushion block is connected with the small pressing plate; according to the invention, by changing the material gathering form of the plate in the drawing process, the die fillet of the die is prevented from contacting the plate in the drawing process, so that the effect of eliminating the impression is achieved, the die fillet is not required to be amplified, the problems that the production margin of a workpiece is influenced by increasing the feeding resistance and the like are avoided, the problem of the productivity of the imprint of the inner plate and the window frame of the automobile door can be solved, and the quality of the stamping part of the inner plate and the automobile door is improved.

Description

Pressing assembly, die and method for eliminating impression of inner plate and window frame of automobile door

Technical Field

The invention relates to the technical field of stamping, in particular to a swaging component, a die and a method for eliminating impressions of an inner plate and a window frame of an automobile door.

Background

The concave fillet at the position of the inner door and window frame of the automobile door is generally about R4mm, is very small, the drawing angle of the vertical wall of the window frame is also small, the forming depth is deep, the drawing depth difference between the position of the inner door and window frame and the position of a door protection plate is large under the influence of the product molding and the stamping direction, and the problem of material gathering occurs at the position of the window frame in the drawing process; crescent traces are formed on the plate when the fillet of the female die product contacts the plate, and the crescent traces are finally left on the product to influence the quality of the finished automobile surface product, so that the quality fineness of perception of a user is influenced. The prior art basically depends on the mode of amplifying the product fillet and increasing the outside feeding resistance to optimize the defects; the product fillet amplification is influenced by the matching relation, and the amplifiable range is very small; the mode of increasing the feeding resistance is greatly influenced by the performance of the plate, the production problem of cracking is easily generated in the production process, and the problem of easy occurrence of the automobile door manufactured by the prior art is solved.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to solve the defect that the impression is generated when the die fillet of the die contacts the sheet material in the drawing process, so that the pressing assembly, the die and the method for eliminating the impression of the inner panel and the window frame of the automobile door are provided.

A pressing assembly for eliminating marks of an inner plate and a window frame of an automobile door is arranged in an upper die concave mould of a mould and comprises a first pressure mounting plate, a pressure device, a cushion block and a small pressing plate;

the top of the pressure device is fixedly connected with the first pressure device mounting plate, the bottom of the pressure device is connected with one end of the cushion block, and the other end of the cushion block is connected with the small pressure plate.

Further, the pressure device is a nitrogen cylinder.

Further, the material pressing assembly further comprises a second pressure device mounting plate, and the nitrogen cylinder passes through the second pressure device mounting plate and the first pressure device mounting plate.

Further, the material pressing assembly is installed in the upper die concave die through the installation surface of the nitrogen cylinder.

Furthermore, the material pressing assembly further comprises a guide plate, and the guide plate is fixedly connected to the small material pressing plate.

Furthermore, the guide plate is fixedly connected to the small pressure plate through screws.

Furthermore, the number of the guide plates is two, and the two guide plates are symmetrically distributed on two sides of the small pressure plate.

Further, the pressure device is a spring.

An automobile door inner panel die, which comprises the swaging assembly for eliminating the impression of an automobile door inner panel window frame.

A method for eliminating the automobile door inner panel window frame impression based on the automobile door inner panel mold comprises the steps that a pressing assembly for eliminating the automobile door inner panel window frame impression is installed in an upper mold concave mould of the mold, a sheet is placed in a mold working area, a small pressing plate stroke limiting surface is dragged up in the upper mold top dead center state to prevent the small pressing plate from falling off, the mold is closed, the outer pressing surface of the concave mould contacts the sheet firstly when the mold is closed, the small pressing plate contacts the sheet firstly in the closing process, then the sheet contacts a window frame convex mould round corner, at the moment, the closing is continued, the small pressing plate and the inner molded surface of a convex mould window frame clamp the sheet and then continue to be closed, the sheet on the inner side and the sheet on the outer side of the window frame are stressed simultaneously, and the sheet gathering state is unfolded; and in the process of lifting the upper die after the die reaches the lower dead point, the lower pressure plate returns to prevent the drawing process piece from lifting along with the upper die, and the small pressure plate stops moving after the stroke limiting surface is contacted with the female die body.

The pressing structure component C for eliminating the impression of the inner plate and the window frame of the automobile door has a simple integral structure, and avoids the contact of a die fillet of a die with a plate material in the drawing process by changing the material gathering form of the plate material in the drawing process, thereby achieving the effect of eliminating the impression and effectively avoiding the problem that the production margin of a workpiece is influenced by increasing the feeding resistance. The method can solve the problem of the productivity of the imprint of the inner plate and the window frame of the automobile door and improve the quality of the stamping part of the inner plate of the automobile door.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is an assembly view of a swage assembly for removing an imprint of an inner door panel and window frame of an automobile door in accordance with the present invention;

FIG. 2 is a top view of an automobile door inner panel eliminating mold according to the present invention;

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

1-a first pressure device mounting plate; 2-a second pressure device mounting plate; 3-a pressure device;

4-cushion block; 5-small pressure plates; 6-a guide plate;

a-a stroke limiting surface; b, an upper die concave die; c, pressing a material structure component;

d-nitrogen cylinder mounting surface;

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but 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 construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Referring to fig. 1 to 3, a pressing assembly for removing marks on an inner panel and a window frame of an automobile door is mounted in an upper die and a female die B of a die, and comprises a first pressure device mounting plate 1, a pressure device 3, a cushion block 4 and a small pressing plate 5;

the top of the pressure device 3 is fixedly connected with the first pressure device mounting plate 1, the bottom of the pressure device 3 is connected with one end of the cushion block 4, the other end of the cushion block 4 is connected with the small pressure plate 5, and the small pressure plate 5 provides pressure force through the pressure device 3.

The pressure device 3 is a nitrogen cylinder, and the nitrogen cylinder is small in volume, large in elasticity, long in stroke, stable in work, precise in manufacture, long in service life, gentle in elasticity curve and free of pre-tightening.

The material pressing structure assembly further comprises a second pressure device mounting plate 2, and the nitrogen cylinder is mounted on the first pressure device mounting plate 1 through the second pressure device mounting plate 2.

The material pressing assembly is installed in the upper die concave die B through a nitrogen cylinder installation surface D.

The material pressing assembly further comprises a guide plate 6, the guide plate 6 is fixedly connected to the small material pressing plate 5, the small material pressing plate 5 limits the position of the small material pressing plate 5 in the female die through the guide plate 6, and the position of the small material pressing plate in the upper die female die B is limited through the limiting surface A.

The guide plate 6 is fixedly connected to the small pressure plate 5 through screws.

The number of the guide plates 6 is two, and the two guide plates 6 are symmetrically distributed on two sides of the small pressure plate 5.

The pressure device 3 is a spring, the spring can also be used as an alternative device for providing a material pressing force, the price of the spring is lower than that of a nitrogen cylinder, and partial cost can be saved.

The invention also comprises an automobile door inner plate die which comprises the swaging component for eliminating the impression of the automobile door inner plate window frame.

The invention also comprises a method for eliminating the imprint of the inner plate and the window frame of the automobile door, which is based on the automobile door inner plate mold and specifically comprises the following steps: installing a pressing assembly for eliminating marks of an automobile door inner plate window frame in an upper die concave die B of a die and well placing plates in a die working area, wherein in the upper dead center state of the upper die, a stroke limiting surface of a small pressing plate 5 is dragged up to prevent the small pressing plate 5 from falling off, then closing the die, when the die is closed, the outer pressing surface of the concave die contacts the plates firstly, the small pressing plate 5 contacts the plates firstly in the closing process, then the plates contact a window frame convex die fillet, at the moment, the closing is continued, the small pressing plate 5 and the inner molded surface of a convex die window frame clamp the plates, then the closing is continued, the plates on the inner side and the outer side of the window frame are stressed simultaneously, and the plate gathering state is expanded; in the process of lifting the upper die after the die reaches the lower dead point, the lower pressure plate returns, the drawing process piece is prevented from being lifted along with the upper die, and the small pressure plate 5 stops moving after the stroke limiting surface A is contacted with the female die body, so that the produced automobile door inner plate window frame has no mark, and the product quality is improved.

The pressing assembly for eliminating the impression of the inner plate and the window frame of the automobile door has a simple integral structure, and avoids the contact of a die fillet of a die with a plate material in the drawing process by changing the material gathering form of the plate material in the drawing process, thereby achieving the effect of eliminating the impression and effectively avoiding the problem that the production margin of a workpiece is influenced by increasing the feeding resistance. The method can solve the problem of the productivity of the imprint of the inner plate and the window frame of the automobile door and improve the quality of the stamping part of the inner plate of the automobile door.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims (10)

1. The pressing assembly for eliminating the impression of the inner plate and the window frame of the automobile door is characterized by being installed in an upper die concave die of a die and comprising a first pressure mounting plate (1), a pressure device (3), a cushion block (4) and a small pressing plate (5);

the top of the pressure device (3) is fixedly connected with the first pressure device mounting plate (1), the bottom of the pressure device (3) is connected with one end of the cushion block (4), and the other end of the cushion block (4) is connected with the small pressure plate (5).

2. The swage assembly according to claim 1, characterized in that the pressure device (3) is a nitrogen cylinder.

3. A swage assembly according to claim 2, characterized in that it further comprises a second pressure device mounting plate (2), said nitrogen cylinder passing through said second pressure device mounting plate (2) on the first pressure device mounting plate (1).

4. A swage assembly according to claim 2, wherein said swage assembly is mounted in the upper die cavity by a nitrogen cylinder mounting face.

5. The nip assembly of claim 1, further comprising a guide plate (6), the guide plate (6) being attached to the small nip plate (5).

6. The nip assembly of claim 4, wherein the guide plate (6) is attached to the small nip plate (5) by screws.

7. The nip assembly according to claim 4, characterized in that the number of guide plates (6) is two, and the two guide plates (6) are symmetrically arranged on both sides of the small nip plate (5).

8. The swage assembly according to claim 1, characterized in that said pressure means (3) is a spring.

9. An automobile door inner panel mold, characterized in that the mold comprises the swaging assembly for removing the mark of the window frame of the automobile door inner panel according to any one of claims 1 to 8.

10. The method for eliminating the imprint of the automobile door inner panel window frame based on the automobile door inner panel mold as claimed in claim 9, is characterized in that a pressing assembly for eliminating the imprint of the automobile door inner panel window frame is installed in an upper mold concave mold of the mold, the sheet is placed in a mold working area, in a state that the upper mold is at a top dead center, a stroke limit surface of a small pressing plate (5) is dragged up to prevent the small pressing plate (5) from falling off, then the mold is closed, the outer pressing surface of the concave mold first contacts the sheet when the mold is closed, the small pressing plate (5) first contacts the sheet during closing, then the sheet contacts a fillet of a window frame male die, at the moment, the small pressing plate (5) is continuously closed, the sheet is clamped by the inner pressing surface of the male die window frame, then the mold is continuously closed, the sheets on the inner side and the outer side of the window frame are simultaneously stressed, and the sheet gathering state is unfolded; and in the process of lifting the upper die after the die reaches the lower dead point, the lower pressure plate returns to prevent the drawing process piece from lifting along with the upper die, and the small pressure plate (5) stops moving after the stroke limiting surface A is contacted with the female die body.

Images