CN116571632B - Pre-bending and pressing binding combined mechanism die - Google Patents

Abstract

The invention relates to the technical field of dies, and particularly discloses a pre-bending and pressing binding combined mechanism die, which comprises the following components: a base; an inner plate and an outer plate are arranged on the base, and the outer plate is divided into a horizontal part and a vertical part; the clamping assembly is connected to the base and used for limiting and fixing the outer plate; the lifting assembly is connected to the base and used for driving the corresponding component to move in the vertical direction; the pre-bending pressing assembly is connected to the lifting assembly and matched with the vertical part of the outer plate; when the device is used, the clamping assembly is used for fixing the outer plate and controlling the gap between the outer plate and the inner plate, wherein the clamping assembly is used for clamping the outer plate, the clamping part of the outer plate is positioned on one side, close to the base, of the outer plate, then the lifting assembly is used for driving the pre-bending pressing assembly to start to move downwards, the outer plate starts to be bent inwards in the downward moving process, and after the outer plate is bent to a corresponding angle, the bent part starts to be pressed, the bending part does not need to be withdrawn, and the device is more convenient to use.

Description

A kind of pre-bending and pressing hemming combined mechanism mold

Technical field

The invention relates to the technical field of molds, specifically a mold with a pre-bending and press-fitting combined mechanism.

Background technique

In the manufacturing process of automobile bodies, some components are synthesized by wrapping inner and outer panels, such as automobile four-door assemblies, engine cover assemblies, trunk lid assemblies and other assembly parts. The hemming methods for the outer and inner panels of these automobile panels include press-fit mold hemming, special machine hemming, and robot hemming. Press-fitting die hemming uses a press-fitting die installed on a hydraulic press. The pressure of the hydraulic press is used to perform the two processes of pre-bending and pressing. It has the advantages of easy control of the hemming size, stable quality, mature technology, high hemming efficiency, and high pressure. It is widely used due to its advantages such as fast pace.

The traditional pressing and wrapping mechanism is composed of a pre-curved knife arranged on the lower mold and a pressing knife arranged on the upper mold; the wrapping process of the outer panel single piece by the pressing mold is: first, the hydraulic press drives the upper mold during the downward movement. movement, the upper mold drives the four-link pre-bending mechanism arranged on the lower mold to fix the pre-curving knife, so that the pre-curving knife completes the process of moving from the initial state to the pre-bending state, and then returns to the initial state, realizing the pre-bending of a single outer panel. Bending; finally, through the pressing blade arranged on the upper mold body and the tire mold pier fixed on the lower mold body, the pressing of the single outer plate after pre-bending is completed; the above-mentioned pre-bending is combined into two Operation steps, and after pre-bending, the tool needs to be withdrawn before the pressing action can be carried out. The structure is complex and the operation is troublesome. In addition, in order to avoid interference between the flanging of the outer panel and the edge of the inner door panel during the hemming process, pre-bending is performed between the inner and outer panels. Leave a gap. When the gap is too small, the surface material of the outer panel will be subject to tension, which will produce a shape surface with poor rigidity, which will form a surface depression. If the gap is too large and uneven, it will also cause the edge to be uneven and easily cause the inner panel to shake. ; Therefore, a pre-bending and press-fitting combined mechanism mold is needed to solve the above problems.

Contents of the invention

The object of the present invention is to provide a pre-bending and press-fitting combined mechanism mold to solve the problems raised in the above background technology.

In order to achieve the above object, the present invention provides the following technical solution: a pre-bending and press-fitting combined mechanism mold, including: a base;

An inner plate and an outer plate are placed on the base, and the outer plate is divided into a horizontal part and a vertical part;

The clamping component is connected to the base and is used to limit and fix the outer panel and maintain the relative distance between the outer panel and the inner panel;

The lifting component is connected to the base and used to drive the corresponding components to move in the vertical direction;

The pre-bending and pressing component is connected to the lifting component and cooperates with the vertical part of the outer panel. With the lifting action of the lifting component, the vertical part is pre-bent and pressed.

Preferably, the clamping assembly includes a mounting seat fixedly connected to the outside of the outer plate on the base. A cylinder is fixedly connected to the mounting seat. The telescopic end of the cylinder 1 is fixedly connected to a movable base. The free end of the movable base is fixedly connected to the outer plate. Clamping plate with limited fit on the outer wall.

Preferably, the lifting assembly includes a plurality of vertical hydraulic cylinders fixedly connected to the base. The free end of the hydraulic cylinder is fixedly connected to a top plate, and a side wall of the top plate facing the base is fixedly connected to a number of connecting columns. The free ends of the connecting columns are fixedly connected to a top plate. The end is fixedly connected with a lifting plate.

Preferably, the pre-bending and pressing assembly includes a through hole opened on the lifting plate, the shape of the through hole is the same as the shape of the inside, and the outwardly inclined front pressure plate is fixedly connected to the outside of the through hole on one side wall of the lifting plate toward the base. , side pressure plate and rear pressure plate, a pressure plate is provided at the corresponding position of the through hole. The pressure plate is a hollow structure with an opening on one side away from the base. Non-Newtonian fluid is placed inside the pressure plate; a number of hydraulic cylinders are fixedly connected to the side wall of the top plate facing the base. The free end of the hydraulic cylinder two is fixedly connected with an impact plate that matches the pressure plate. The lifting plate is provided with lifting components on both sides of the pressure plate. The lifting components drive the pressure plate to move in the vertical direction inside the through hole.

Preferably, the lifting assembly includes a fixed seat fixed on the lifting plate and located on both sides of the pressure plate. The fixed seat is fixedly connected with cylinder two. The telescopic end of cylinder two is fixedly connected with a connecting seat. The free side of the connecting seat is fixedly connected with two connecting blocks. One end of the rod and the free side of the second connecting rod are provided with a chute along its length direction. The outer wall of the pressure plate is fixedly connected to an ear plate at a position corresponding to the second connecting rod. The ear plate is fixedly connected to a connecting shaft that is slidingly connected to the chute.

Preferably, the cross-sectional shape of the connecting shaft is T-shaped, and the larger cross-sectional size of the connecting shaft is larger than the width of the chute.

Preferably, the clamping plates are distributed close to the outer wall of the outer panel, and the distance between the clamping plates on the same side is less than 5mm.

Preferably, the cross-sectional size of the impact plate is the same as the internal hollow size of the pressure plate.

Preferably, the edge of the top plate is fixedly connected with an isolation shell extending toward the base.

Preferably, a pump body is fixedly connected to the side wall of the lifting plate away from the base, and a flexible connecting pipe is connected to the pump body, and the connecting pipe is connected to the non-Newtonian fluid inside the pressure plate.

The present invention at least has the following beneficial effects:

1. When using the present invention, first place the outer panel on the base, then place the inner panel above the outer panel, use several sets of clamping components to fix the outer panel, and control the gap between the outer panel and the inner panel. , to avoid the problem of shaking caused by too large gaps and surface damage caused by too small gaps. The clamping component of the outer panel is located on the side of the outer panel close to the base, and then the pre-bending and pressing components are driven by the lifting component to begin to move. Move downward, and start to bend the outer plate inward during the downward movement. When it reaches the corresponding angle, it starts to press the bent part. There is no need to exit the bending part, and the pressing operation can be performed directly, making it more convenient to use. .

2. During use of the present invention, the impact plate transmits the impact force to the pressure plate through non-Newtonian fluid, which can share the pressure of the impact force on the connection between the pressure plate and the lifting component, protect the device, and extend the service life of the equipment.

Description of the drawings

Figure 1 is one of the schematic diagrams of the overall three-dimensional structure of the present invention;

Figure 2 is the second schematic diagram of the overall three-dimensional structure of the present invention;

Figure 3 is one of the side cross-sectional three-dimensional structural schematic diagrams of the present invention;

Figure 4 is the second schematic diagram of the side cross-sectional three-dimensional structure of the present invention;

Figure 5 is a schematic diagram of the front cross-sectional three-dimensional structure of the present invention;

Figure 6 is one of the three-dimensional structural schematic diagrams of the present invention in top view;

Figure 7 is the second schematic diagram of the top cross-sectional three-dimensional structure of the present invention;

Figure 8 is the third schematic diagram of the three-dimensional structure of the present invention in top view;

Figure 9 is a schematic diagram of the cross-sectional three-dimensional structure of the present invention.

In the picture: 1-base; 2-inner panel; 3-outer panel; 31-horizontal part; 32-vertical part; 321-vertical front part; 322-vertical side part; 323-vertical rear part; 4-clamping component ; 41-Mounting seat; 42-Cylinder one; 43-Moving seat; 44-Clamping plate; 5-Lifting component; 51-Hydraulic cylinder one; 52-Roof plate; 53-Connecting column; 54-Lifting plate; 6-Preliminary Bending and pressing components; 61-through hole; 62-pressure plate; 63-hydraulic cylinder two; 64-impact plate; 65-non-Newtonian fluid; 66-pull component; 67-front pressure plate; 68-rear pressure plate; 69-side Pressure plate; 661-fixed seat; 662-cylinder two; 663-connecting seat; 664-two connecting rods; 665-slide; 666-ear plate; 667-connecting shaft; 7-pump body; 8-connecting pipe; 9- Isolation enclosure.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

Please refer to Figures 1-9. The present invention provides a technical solution: Embodiment 1, a pre-bending and press-fitting combined mechanism mold, including: a base 1;

An inner panel 2 and an outer panel 3 are placed on the base 1. The outer panel 3 is divided into a horizontal part 31 and a vertical part 32. The vertical part 32 includes a vertical front part 321, a vertical side part 322 and a vertical rear part 323;

The clamping assembly 4 is connected to the base 1 and is used to limit and fix the outer plate 3 and maintain the relative distance between the outer plate 3 and the inner plate 2;

Lifting assembly 5, which is connected to the base 1 and is used to drive corresponding components to move in the vertical direction;

The pre-bending and pressing assembly 6 is connected to the lifting assembly 5 and cooperates with the vertical part 32 of the outer panel 3. With the lifting action of the lifting assembly 5, the vertical part 32 is pre-bent and pressed. ;

When in use, first place the outer panel 3 on the base 1, then place the inner panel 2 above the outer panel 3, use several sets of clamping assemblies 4 to fix the outer panel 3, and control the outer panel 3 and the inner panel 2 The gap between the clamping assembly 4 and the outer plate 3 is located on the side of the outer plate 3 close to the base 1, and then the pre-bending and pressing assembly 6 is driven by the lifting assembly 5 to start moving downward. Start to bend the outer plate 3 inward. When it is bent to a corresponding angle, start to press the bent part. There is no need to exit the bending part, making it more convenient to use.

The clamping assembly 4 includes a mounting seat 41 fixedly connected to the outside of the outer plate 3 on the base 1. A cylinder 42 is fixedly connected to the mounting seat 41, and a movable base 43 is fixedly connected to the telescopic end of the cylinder 42. The cross-sectional shape of the movable base 43 is It is L-shaped, and the free end of the movable base 43 is fixedly connected with a clamping plate 44 that is limitedly matched with the outer wall of the outer plate 3; when in use, the cylinder one 42 is started, and the cylinder one 42 drives the clamping plate through the transmission of the movable base 43 44 approaches the outer plate 3, thereby fixing the outer plate 3 through the cooperation of several clamping plates 44.

The lifting assembly 5 includes a number of vertical hydraulic cylinders 51 fixedly connected to the base 1. The number of the hydraulic cylinders 51 in this embodiment is four, and they are distributed at the four corners of the base 1. The hydraulic cylinders 51 The free end of the top plate 52 is fixedly connected with a top plate 52, and a number of connecting columns 53 are fixedly connected to the side wall of the top plate 52 facing the base 1. The number of connecting columns 53 in this embodiment is four, and the free end of the connecting column 53 is fixedly connected with a lift. Plate 54; when in use, start the hydraulic cylinder 51, the hydraulic cylinder 51 will drive the top to move in the vertical direction, and then cooperate with the pre-bending and pressing assembly 6 to achieve pre-bending and pressing of the outer plate 3.

The pre-bent pressing assembly 6 includes a through hole 61 opened on the lifting plate 54. The shape of the through hole 61 is the same as the shape of the inside. The lifting plate 54 is fixedly connected to the outside of the through hole 61 on one side wall of the base 1. The length of the inclined front pressure plate 67, the side pressure plate 69 and the rear pressure plate 68 is less than the length of the vertical part 32 of the outer panel 3. In this embodiment, the outward tilt angle is 45°. , a pressure plate 62 is provided at a position corresponding to the through hole 61. The pressure plate 62 is located directly above the through hole 61. The pressure plate 62 is a hollow structure with an opening on one side away from the base 1. A non-Newtonian fluid 65 is placed inside the pressure plate 62; the top plate 52 faces the base 1 A number of hydraulic cylinders 63 are fixedly connected to one side wall. In this embodiment, the number of hydraulic cylinders 63 is two, and they are distributed front and back. The free end of the hydraulic cylinder 63 is fixedly connected with an impact plate 64 that cooperates with the pressure plate 62. The cross-sectional size of the impact plate 64 is the same as the internal hollow size of the pressure plate 62. The lifting plate 54 is provided with lifting components 66 on both sides of the pressure plate 62. The lifting components 66 drive the pressure plate 62 to move in the vertical direction inside the through hole 61. The lifting assembly 66 includes fixed seats 661 fixed on the lifting plate 54 and located on both sides of the pressure plate 62. The fixed seat 661 is fixedly connected to the second cylinder 662, and the telescopic end of the second cylinder 662 is fixedly connected to a connecting seat 663. The connecting seat 663 is free to One end of the two connecting rods 664 is fixedly connected to the side. The free side of the two connecting rods 664 is provided with a chute 665 along its length direction. The outer wall of the pressure plate 62 is fixedly connected with an ear plate 666 at a position corresponding to the two connecting rods 664. The ear plates 666 The top is fixedly connected with a connecting shaft 667 that is slidingly connected to the chute 665; when in use, when the top plate 52 is descending, the top plate 52 will drive the lifting plate 54 downward through the hydraulic cylinder 263, thereby passing the front pressure plate 67, side The cooperation between the pressure plate 69 and the rear pressure plate 68 respectively with the vertical front part 321, the vertical side part 322 and the vertical rear part 323 pre-bends the vertical part 32 of the outer plate 3 inward. At this time, the vertical front part 321 and the vertical side part 322 and the free ends of the vertical rear part 323 are extended into the inside of the through hole 61, and then the second cylinder 662 is started to extend. The second cylinder 662 drives the second connecting rod 664 to move, and the second connecting rod 664 passes between the chute 665 and the connecting shaft 667. The cooperation then drives the pressure plate 62 to start to descend until the bottom of the pressure plate 62 contacts the free ends of the vertical front part 321, the vertical side part 322 and the vertical rear part 323, and then continues to extend the cylinder two 662 until the connecting shaft 667 reaches the chute 665 and moves away from the pressure plate 62, and then start the hydraulic cylinder two 63. The hydraulic cylinder two 63 will drive the impact plate 64 to move downward. First, the impact plate 64 will contact the non-Newtonian fluid 65 inside the pressure plate 62 at a low speed, and smooth the non-Newtonian fluid 65. , then rise, and finally hit the pressure plate 62 at high speed, thereby pressing the vertical front part 321, the vertical side part 322 and the vertical rear part 323 with the edge of the inner panel 2, thereby realizing the entire pre-bending and pressing process. During the process, the impact plate 64 transmits the impact force to the pressure plate 62 through the non-Newtonian fluid 65, which can share the pressure of the impact force on the connection between the pressure plate 62 and the lifting assembly 66, protect the device, and extend the service life of the equipment.

The cross-sectional shape of the connecting shaft 667 is T-shaped, and the larger side of the connecting shaft 667 is larger than the width of the chute 665; when in use, the cross-sectional shape of the connecting shaft 667 is designed to limit the position of the two connecting rods 664. This prevents the second connecting rod 664 from being separated from the connecting shaft 667 during movement.

The clamping plates 44 are distributed close to the outer wall of the outer panel 3, and the distance between the clamping plates 44 on the same side is less than 5mm; when in use, by densely covering the outer wall of the outer panel 3 with the clamping plates 44, the clamping plates can be The outer wall of 44 provides stable support and can reduce the deformation of the outer plate 3 during the pre-bending and pressing process.

According to the above embodiment, Embodiment 2,

The edge of the top plate 52 is fixedly connected with an isolation shell 9 extending in the direction of the base 1; the isolation shell 9 can separate the work area from the outside and improve the safety of equipment operation.

According to the above embodiment, Embodiment 3,

A pump body 7 is fixedly connected to the side wall of the lifting plate 54 away from the base 1, and a flexible communication tube 8 is connected to the pump body 7. The communication tube 8 communicates with the non-Newtonian fluid 65 inside the pressure plate 62; when in use, the pump body passes through 7. It can transport and output non-Newtonian fluid 65, making it easy to replace and use.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that these entities or operations are mutually exclusive. any such actual relationship or sequence exists between them. Furthermore, the terms "comprises," "comprises," or any other variations thereof are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that includes a list of elements includes not only those elements, but also those not expressly listed other elements, or elements inherent to the process, method, article or equipment.

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, and substitutions can be made to these embodiments without departing from the principles and spirit of the invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (7)

1. A pre-bending and press-fitting combined mechanism mold, including: a base (1); Its characteristics are: An inner plate (2) and an outer plate (3) are placed on the base (1). The outer plate (3) is divided into a horizontal part (31) and a vertical part (32). The vertical part (32) includes a vertical part. Front (321), vertical sides (322) and vertical rear (323); Clamping assembly (4), the clamping assembly (4) is connected to the base (1) and is used to limit and fix the outer plate (3) and maintain the space between the outer plate (3) and the inner plate (2). relative distance; Lifting assembly (5), which is connected to the base (1) and used to drive corresponding components to move in the vertical direction; Pre-bending and pressing assembly (6). The pre-bending and pressing assembly (6) is connected to the lifting assembly (5) and cooperates with the vertical part (32) of the outer plate (3). As the lifting assembly (5) The lifting action performs pre-bending and pressing actions on the vertical part (32); The lifting assembly (5) includes a number of vertical hydraulic cylinders (51) fixedly connected to the base (1). The free end of the hydraulic cylinder (51) is fixedly connected with a top plate (52). The top plate (52) A number of connecting columns (53) are fixedly connected to the side wall facing the base (1), and the free ends of the connecting columns (53) are fixedly connected to a lifting plate (54); The pre-bent pressing assembly (6) includes a through hole (61) opened on the lifting plate (54). The shape of the through hole (61) is the same as the internal shape. The lifting plate (54) faces the base. The outwardly inclined front pressure plate (67), side pressure plate (69) and rear pressure plate (68) are respectively fixedly connected to the outside of the side wall through hole (61) of (1), and the through hole (61) is provided at the corresponding position. There is a pressure plate (62), which is a hollow structure with an opening on one side away from the base (1). A non-Newtonian fluid (65) is placed inside the pressure plate (62); the top plate (52) faces the base (1) A number of hydraulic cylinders (63) are fixedly connected to one side wall of 1). The free end of the hydraulic cylinders (63) is fixedly connected with an impact plate (64) that cooperates with the pressure plate (62). The lifting plate (63) 54) is provided with lifting components (66) on both sides of the pressing plate (62), and the lifting component (66) drives the pressing plate (62) to move along the vertical direction inside the through hole (61); The lifting assembly (66) includes fixed seats (661) fixed on the lifting plate (54) and located on both sides of the pressure plate (62). The second cylinder (662) is fixedly connected to the fixed seat (661). The telescopic end of the second cylinder (662) is fixedly connected with a connecting seat (663). The free side of the connecting seat (663) is fixedly connected with one end of the two connecting rods (664). The free side of the two connecting rods (664) A chute (665) is provided along its length direction, an ear plate (666) is fixedly connected to the outer wall of the pressure plate (62) at a position corresponding to the two connecting rods (664), and an ear plate (666) is fixedly connected to the The connecting shaft (667) is slidingly connected to the chute (665). 2. A pre-bending and press-fitting combined mechanism mold according to claim 1, characterized in that: the clamping component (4) includes a Mounting base (41), a cylinder (42) is fixedly connected to the mounting base (41), a movable base (43) is fixedly connected to the telescopic end of the cylinder 1 (42), and the movable base (43) The free end is fixedly connected with a clamping plate (44) that is limitedly matched with the outer wall of the outer plate (3). 3. A pre-bending and press-fitting combined mechanism mold according to claim 1, characterized in that: the cross-sectional shape of the connecting shaft (667) is T-shaped, and the cross-sectional size of the connecting shaft (667) is larger The dimensions on one side are larger than the width of the chute (665). 4. A pre-bending and pressing hemming combination mechanism mold according to claim 2, characterized in that: the clamping plate (44) fits the outer wall distribution of the outer plate (3), and the clamping plate (44) is arranged on the same side. The distance between the clamping plates (44) is less than 5mm. 5. A pre-bending and press-fitting combined mechanism mold according to claim 1, characterized in that: the cross-sectional size of the impact plate (64) is the same as the internal hollow size of the pressing plate (62). 6. A pre-bending and press-fitting combination mechanism mold according to claim 1, characterized in that: the edge of the top plate (52) is fixedly connected with an isolation shell (9) extending in the direction of the base (1) . 7. A pre-bending and press-fitting combined mechanism mold according to claim 1, characterized in that: a pump body (7) is fixedly connected to the side wall of the lifting plate (54) facing away from the base (1). ), the pump body (7) is connected with a flexible communication tube (8), and the communication tube (8) communicates with the non-Newtonian fluid (65) inside the pressure plate (62).