An embedded edge wrapping mechanism

Abstract

The present invention relates to an embedded edge wrapping mechanism, which comprises a drive control component and an edge wrapping plate. The drive control component is installed under the lower die of the edge wrapping die. The drive control component includes a first cylinder, a second cylinder, a first guide plate and a second guide plate. The first cylinder is horizontally installed inside under the lower die, the front end of the first cylinder is rotatably connected to the first guide plate, and the edge wrapping plate is installed at the front end of the first guide plate. The front end of the second guide plate is slidably installed in the horizontal kidney-shaped hole of the first guide plate through a stud. The advantages are ingenious design, compact structure. The drive control components are all designed and installed under the lower die. The front end of the second guide plate slides in the horizontal kidney-shaped hole through a stud, controlling the edge wrapping plate to complete the edge wrapping action, without occupying space and avoiding interference problems.

Description

Technical Field

[0001] The present invention relates to the field of hemming of automotive interior parts, and particularly to a built-in hemming mechanism. Background Art

[0002] In the past, during the production of automotive roofs, hemming processing was required. Currently, there are various hemming mechanisms for automotive roofs on the market, all of which use multiple groups of cylinders to cooperate to drive the hemming mechanism to perform rising, flanging, and pressing actions to complete the hemming process. Normally, multiple groups of cylinders and the hemming mechanism are designed and installed on the outer side of the lower die of the hemming die for one week. In this normal installation method, as long as there is enough space, it can be installed and used normally. However, sometimes due to space problems, the cylinders and the hemming mechanism cannot be installed on the outer side, otherwise interference and other problems will occur, resulting in the entire equipment being unable to work. Now, there is a need for a structure that does not occupy the space around the hemming die and can still ensure normal hemming actions. Summary of the Invention

[0003] In order to solve the above technical problems, the present invention proposes a built-in hemming mechanism, which is ingeniously designed, has a compact structure, saves space, avoids interference, and ensures normal hemming actions.

[0004] The technical solution of the present invention:

[0005] A built-in hemming mechanism includes a drive control component and a hemming plate. The drive control component is installed under the lower die of the hemming die. The front end of the drive control component extends out of one side of the lower die of the hemming die and is connected to the hemming plate. The drive control component includes a first cylinder, a second cylinder, a first guide plate, and a second guide plate. The first cylinder is horizontally installed inside the lower die. The front end of the first cylinder is rotatably connected to the first guide plate. The front end of the first guide plate is provided with a hemming plate. A horizontal waist-shaped hole is opened at a position near the front end of the first guide plate. The second cylinder is installed inside the lower die, and the front end of the second cylinder is connected to the second guide plate. The front end of the second guide plate is slidably installed in the horizontal waist-shaped hole of the first guide plate through a pin.

[0006] The drive control component further includes a guide block. The guide block is installed inside the lower die. A rectangular through groove is opened in the middle of the guide block. There is an inclined groove on one side of the rectangular through groove, and the inclined groove is connected to the rectangular through groove. The upper and lower inner surfaces of the inclined groove are designed as parallel inclined surfaces. The front end of the first guide plate passes through the rectangular through groove of the guide block and is provided with a hemming plate at the rear end after passing through. The front end of the second guide plate slides through the inclined groove, and the front end of the second guide plate is slidably installed in the horizontal waist-shaped hole of the first guide plate through a pin.

[0007] The inner mouth of the inclined groove is higher than the outer mouth. The first cylinder is installed above the first guide plate, and the second guide plate slides through the inclined groove from top to bottom.

[0008] The inner opening of the inclined chute is lower than the outer opening. The first cylinder is installed below the first guide plate, and the second guide plate slides upward through the inclined chute from bottom to top.

[0009] The built-in edge wrapping mechanism further includes a bracket mechanism. The bracket mechanism includes an upper plate, a lower plate, a rear plate, and side plates. One side plate is installed at each of the two positions near the front end on the upper surface of the lower plate. The upper ends of the two side plates are installed under the lower die. A rear plate is vertically installed at the rear end on the upper surface of the lower plate. The upper plate is installed at the front side of the upper end of the rear plate. The rear end of the first cylinder is fixed to the front side of the rear plate. A connecting block is fixedly installed at the front end of the first cylinder. The upper end of the connecting block slides and is installed under the upper plate. An L-shaped groove is opened at the lower front side of the front end of the connecting block. A U-shaped block is arranged on the upper surface of the rear end of the first guide plate. The U-shaped block is located in the L-shaped groove and is rotatably installed in the L-shaped groove through a pin. The two sides in the middle of the upper plate are respectively supported and connected to the upper surface of the lower plate through a column; an inclined plate is designed at the front end of the upper plate. The rear end of the second cylinder is installed on the inclined plate.

[0010] A vertical waist-shaped hole is opened near the front end of the first guide plate, and an inclined groove is opened at the inner rear end of the vertical waist-shaped hole. The vertical waist-shaped hole intersects perpendicularly with the horizontal waist-shaped hole. The lower port of the inclined groove is located at the rear side position of the horizontal waist-shaped hole. The front end of the second guide plate extends into the vertical waist-shaped hole from the inclined groove, and a pin is installed at the front end of the second guide plate. The two ends of the pin extend out of the second guide plate and slide in the horizontal waist-shaped hole.

[0011] The edge wrapping plate includes a vertical plate and a profiling pressing plate. The profiling pressing plate is installed on the inner side of the upper end of the vertical plate. The middle of the lower end of the vertical plate is installed on the front end of the upper surface of the first guide plate.

[0012] A pressing edge mechanism is further designed above the edge wrapping plate. The pressing edge mechanism includes a pressing edge cylinder and a profiling pressing edge plate. The profiling pressing edge plate is installed at the lower end of the pressing edge cylinder. The profiling pressing edge plate presses down on the profiling pressing plate for cooperation.

[0013] The guide block is installed at the front end position on the upper surface of the lower plate.

[0014] Two rectangular through grooves are designed in the middle of the guide block. A partition is designed between the two rectangular through grooves. An inclined groove is designed on the partition. The two sides of the inclined groove are respectively communicated with the rectangular through grooves; the vertical waist-shaped hole is sleeved outside the partition, and the partition slides relatively in the vertical waist-shaped hole.

[0015] The advantages of the present invention are as follows: the design is ingenious and the structure is compact. The rear end of the first guide plate of the drive control component is rotatably installed at the front end of the first cylinder, the edge wrapping plate is installed at the front end of the first guide plate, the second cylinder is obliquely installed above or below the first guide plate, and the second cylinder relatively slides in the horizontal kidney-shaped hole at the front end of the first guide plate through the front end pin of the second guide plate. When the first cylinder expands and contracts, the pin remains stationary, and the first guide plate slides with the pin as the positioning reference through the horizontal kidney-shaped hole, thereby controlling the forward and backward movement of the first guide plate and realizing the forward and backward movement of the edge wrapping plate at the front end. When the second cylinder expands and contracts, the pin slides back and forth in the horizontal kidney-shaped hole. Since the second guide plate fixedly installed at the front end of the second cylinder is on the same axis and forms a certain angle with the second guide plate, the pin slides back and forth in the horizontal kidney-shaped hole, and the first guide plate rotates and swings around the rear end rotation connection point. In this way, the position of the rear end of the first guide plate remains unchanged, and the front end realizes up and down displacement under the swinging action, which is different from the traditional drive method and still realizes the edge wrapping actions of the edge wrapping plate such as rising, inward flat pushing, descending, rising, outward flat pushing, and descending. Moreover, the above components of the present invention are all designed and installed below the lower die, saving space and avoiding interference problems. The present invention also designs through the rectangular through groove and inclined groove of the guide block. Under the sliding action of the second guide plate in the inclined groove, it controls the up and down swinging action of the first guide plate in the rectangular through groove. At the same time, the first cylinder also controls the horizontal forward and backward movement of the first guide plate in the rectangular through groove, making the operation more stable. Thus, it controls the edge wrapping plate to be able to complete the edge wrapping action. Since it is installed at the inner position below the lower die, it does not occupy space and avoids interference problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the installation and application of the present invention Figure 1 .

[0017] Figure 2 is a cross-sectional schematic diagram of the present invention.

[0018] Figure 3 is a three-dimensional Figure 1 .

[0019] Figure 4 [[ID=...]] (There seems to be some redundant or incomplete lines in the original that might be a formatting issue. The translation is done based on the provided text as accurately as possible.) is a three-dimensional Figure 2 .

[0020] Figure 5 is a schematic diagram of the connection and cooperation between the first guide plate and the second guide plate of the present invention.

[0021] Figure 6 is a schematic diagram of the guide block of the present invention Figure 1 .

[0022] Figure 7 is a schematic diagram of the guide block of the present invention Figure 2 .

[0023] Figure 8 It is a schematic diagram of the first guide plate of the present invention.

[0024] Figure 9 It is a schematic diagram of the installation and application of the present invention Figure 2 . Detailed implementation mode

[0025] Referring to the attached Figure 1 , Figure 5 , Figure 9 , a built-in edge wrapping mechanism, which includes a drive control component and an edge wrapping plate 1. The drive control component is installed under the lower die 2 of the edge wrapping die. The front end of the drive control component extends out of one side of the lower die 2 of the edge wrapping die and then connects to the edge wrapping plate 1. The drive control component includes a first cylinder 3, a second cylinder 4, a first guide plate 5, and a second guide plate 6. The first cylinder 3 is horizontally installed inside the lower die 2. The front end of the first cylinder 3 is rotatably connected to the first guide plate 5. The guide block 7 is installed inside the lower die 2. The front end of the first guide plate 5 is provided with an edge wrapping plate 1; a horizontal waist-shaped hole 51 is opened at a position near the front end of the first guide plate 5. The second cylinder 4 is installed inside the lower die 2 and the second cylinder 4 is connected to the second guide plate 6. The front end of the second guide plate 6 is slidably installed in the horizontal waist-shaped hole 51 of the first guide plate 5 through a pin 61.

[0026] As shown in the attached Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7 , the described drive control component further includes a guide block 7. The first cylinder 3 is horizontally installed inside the lower die 2. The front end of the first cylinder 3 is rotatably connected to the first guide plate 5. The guide block 7 is installed inside the lower die 2. A rectangular through groove 71 is opened in the middle of the guide block 7. There is also an inclined groove 72 on one side of the rectangular through groove 71. The inclined groove 72 is communicated with the rectangular through groove 71. The upper and lower surfaces inside the inclined groove 72 are designed as parallel inclined surfaces. The front end of the first guide plate 5 passes through the rectangular through groove 71 of the guide block 7 and the end part after passing through is provided with an edge wrapping plate 1; the front end of the second guide plate 6 slides through the inclined groove 72 and the front end of the second guide plate 6 is slidably installed in the horizontal waist-shaped hole 51 of the first guide plate 5 through a pin 61.

[0027] As Figure 2 , an installation method, the inner mouth of the inclined groove 72 is higher than the outer mouth. The first cylinder 3 is installed above the first guide plate 5, and the second guide plate 6 slides through the inclined groove 72 from top to bottom. As shown in the schematic diagram given by the present invention.

[0028] Another installation method is that the inner opening of the inclined chute 72 is lower than the outer opening. The first cylinder 3 is installed below the first guide plate 5, and the second guide plate 6 slides upward through the inclined chute 72 from below. No specific view is given for installing the present invention with this structure, but this solution can still achieve the invention purpose of the present invention.

[0029] As Figure 2-4 , the built-in edge wrapping mechanism further includes a bracket mechanism 8. The bracket mechanism 8 includes an upper plate 81, a lower plate 82, a rear plate 83, and side plates 84. Side plates 84 are respectively installed on both sides near the front end on the upper surface of the lower plate 82. The upper ends of the two side plates 84 are installed below the lower die 2. A rear plate 83 is vertically installed at the rear end on the upper surface of the lower plate 82. An upper plate 81 is installed on the front side of the upper end of the rear plate 83. The rear end of the first cylinder 3 is fixed on the front side of the rear plate 83. A connecting block 85 is fixedly installed at the front end of the first cylinder 3. The upper end of the connecting block 85 is slidably installed below the upper plate 81. An L-shaped groove 851 is opened on the lower side of the front end of the connecting block 85. A U-shaped block 52 is arranged on the upper surface of the rear end of the first guide plate 5. The U-shaped block 52 is located in the L-shaped groove 851 and is rotatably installed in the L-shaped groove 851 through a pin. Both sides in the middle of the upper plate 81 are respectively supported and connected to the upper surface of the lower plate 82 through a column 86. An inclined plate 87 inclined downward is designed at the front end of the upper plate 81. The rear end of the second cylinder 4 is installed on the inclined plate 87. The upper end of the connecting block 85 is slidably installed below the upper plate 81 through a slider-rail structure. The slider is installed on the connecting block, and the rail is installed below the upper plate. The slider is slidably installed on the rail. The connecting block slides and moves below the upper plate, which can ensure the stable expansion and contraction of the front end of the first cylinder.

[0030] As Figure 8 , a vertical kidney-shaped hole 53 is opened near the front end of the first guide plate 5, and an inclined groove 54 is opened at the inner rear end of the vertical kidney-shaped hole 53. The vertical kidney-shaped hole 53 perpendicularly intersects with the horizontal kidney-shaped hole 51. The lower port of the inclined groove 54 is located at the rear side position of the horizontal kidney-shaped hole 51. The front end of the second guide plate 6 extends into the vertical kidney-shaped hole 53 from the inclined groove 54, and a pin 61 is installed at the front end of the second guide plate 6. Both ends of the pin 61 extend out of the second guide plate 6 and slide in the horizontal kidney-shaped hole 51. The vertical kidney-shaped hole is designed to limit the second guide plate and provide guidance to ensure the stable sliding of the pin in the horizontal kidney-shaped hole.

[0031] As Figure 6-7, the guiding block 7 is installed at the front end position on the upper surface of the lower plate 82. Two rectangular through slots 71 are designed in the middle of the guiding block 7. A partition plate 73 is designed between the two rectangular through slots 71. An inclined slot 72 is designed on the partition plate 73. The two sides of the inclined slot 72 are respectively communicated with the rectangular through slots 71; the vertical waist-shaped hole 53 is sleeved outside the partition plate 73, and the partition plate 73 slides relatively in the vertical waist-shaped hole 53. The view given by the present invention is that the guiding block has two rectangular through slots and one inclined slot, and the first guiding plate has a vertical through hole, an inclined slot and a horizontal through hole. This structure is relatively stable. The distance between the inclined slots is greater than or equal to the thickness of the first guiding plate, ensuring that the middle part of the front end of the first guiding plate can be assembled from the inclined slot.

[0032] As Figure 1-2 , Figure 9 , the edge wrapping plate 1 includes a vertical plate 11 and a profiling pressing plate 12. The profiling pressing plate 12 is installed inside the upper end of the vertical plate 11. The middle of the lower end of the vertical plate 11 is installed at the front end on the first guiding plate 5. A hemming mechanism 9 is also designed above the edge wrapping plate 1. The hemming mechanism 9 includes a hemming cylinder 91 and a profiling hemming plate 92. The profiling hemming plate 92 is installed at the lower end of the hemming cylinder 91. The profiling hemming plate 92 presses down on the profiling pressing plate 12 for cooperation.

[0033] When the present invention is in use, the first cylinder controls the first guide plate to perform forward and backward telescopic movements within the rectangular through groove of the guide block, and the second cylinder controls the second guide plate to perform forward and backward telescopic movements within the inclined groove of the guide block. The front end of the second guide plate is slidably mounted in the horizontal waist-shaped hole of the first guide plate through a pin. Then, the telescopic movement of the second guide plate acts on the horizontal waist-shaped hole of the first guide plate through the pin. The first guide plate will not move without the drive of the first cylinder. When the second guide plate is in the contracted state, the pin is located at the rear side of the horizontal waist-shaped hole. When the second guide plate changes from the telescopic state to the extended state, the pin slides from the rear side to the front side of the horizontal waist-shaped hole. During this process, the first guide plate will swing downward from top to bottom with the point of rotational connection with the first cylinder as the center and swing within the rectangular through groove, thereby driving the hemming plate to move downward. The reverse movement drives the hemming plate to move upward. When the second cylinder does not move and the first cylinder moves forward and backward, the first guide plate moves forward and backward. At this time, the pin does not move, and the horizontal waist-shaped hole will move forward and backward. When performing the hemming operation, the first cylinder and the second cylinder are normally in the extended state. The first guide plate drives the hemming plate to be located outside the lower die. Place the automotive roof 10 to be hemmed on the upper surface of the lower die of the hemming die. The edge pressing mechanism operates. The edge pressing cylinder controls the profiling edge pressing plate to press the edge material area of the automotive roof on the hemming plate. The second cylinder controls the second guide plate to start contracting along the inclined groove. Then, the pin at the front end of the second guide plate slides from the front side to the rear side of the horizontal waist-shaped hole. Due to the contraction of the second guide plate, it will pull the first guide plate to rotate with the rotational connection point as the center. The front end of the first guide plate swings upward, and the hemming plate and the profiling edge pressing plate clamp the edge material area of the roof and move upward, causing the skin of the edge material area of the roof to be tensioned and folded upward. The first cylinder starts to contract and controls the first guide plate to contract. The pin guides in the horizontal waist-shaped hole and the first guide plate guides in the rectangular through groove. In this way, the hemming plate turns the skin of the edge material area of the roof inward. The second cylinder then performs an extended movement to control the hemming plate to move downward, realizing that the profiling pressing plate of the hemming plate presses the skin on the roof skeleton to complete the hemming operation.

Claims

1. An embedded edge wrapping mechanism, characterized in that, It includes a drive control component and a hemming plate. The drive control component is installed under the lower die of the hemming die. The front end of the drive control component extends out of one side of the lower die of the hemming die and then connects to the hemming plate. The drive control component includes a first cylinder, a second cylinder, a first guide plate, and a second guide plate. The first cylinder is horizontally installed inside under the lower die. The front end of the first cylinder is rotatably connected to the first guide plate. The front end of the first guide plate is provided with a hemming plate. A horizontal waist-shaped hole is opened at a position near the front end of the first guide plate. The second cylinder is installed inside under the lower die and the front end of the second cylinder is connected to the second guide plate. The front end of the second guide plate is slidably installed in the horizontal waist-shaped hole of the first guide plate through a pin. The drive control component further includes a guide block. The guide block is installed inside under the lower die. A rectangular through groove is opened in the middle of the guide block. There is also an inclined groove on one side of the rectangular through groove. The inclined groove communicates with the rectangular through groove. The upper and lower inner surfaces of the inclined groove are designed as parallel inclined planes. The front end of the first guide plate passes through the rectangular through groove of the guide block and a hemming plate is installed at the rear end after passing through. The front end of the second guide plate slides through the inclined groove and the front end of the second guide plate is slidably installed in the horizontal waist-shaped hole of the first guide plate through a pin. The inner opening of the inclined groove is higher than the outer opening. The first cylinder is installed above the first guide plate and the second guide plate slides through the inclined groove from top to bottom. Or the inner opening of the inclined groove is lower than the outer opening. The first cylinder is installed below the first guide plate and the second guide plate slides through the inclined groove from bottom to top.

2. The built-in edge wrapping mechanism according to claim 1, characterized in that, The described built-in hemming mechanism further includes a bracket mechanism. The bracket mechanism includes an upper plate, a lower plate, a rear plate, and side plates. On the upper surface of the lower plate, side plates are respectively installed at two positions near the front end on both sides. The upper ends of the two side plates are installed under the lower die. A rear plate is vertically installed at the rear end of the upper surface of the lower plate. The upper plate is installed at the front side of the upper end of the rear plate. The rear end of the first cylinder is fixed to the front side of the rear plate. A connecting block is fixedly installed at the front end of the first cylinder. The upper end of the connecting block is slidably installed under the upper plate. An L-shaped groove is opened on the lower side of the front end of the connecting block. A U-shaped block is arranged on the upper surface of the rear end of the first guide plate. The U-shaped block is located in the L-shaped groove and the U-shaped block is rotatably installed in the L-shaped groove through a pin. On both sides in the middle of the upper plate, they are respectively supported and connected to the upper surface of the lower plate through a column. The front end of the upper plate is designed with an inclined plate that slopes downward. The rear end of the second cylinder is installed on the upper surface of the inclined plate.

3. The built-in edge wrapping mechanism according to claim 1, characterized in that, A vertical waist-shaped hole is opened near the front end of the first guide plate and an inclined groove is opened at the inner rear end of the vertical waist-shaped hole. The vertical waist-shaped hole intersects perpendicularly with the horizontal waist-shaped hole. The lower port of the inclined groove is located at the rear side position of the horizontal waist-shaped hole. The front end of the second guide plate extends into the vertical waist-shaped hole from the inclined groove, and a pin is installed at the front end of the second guide plate. Both ends of the pin extend out of the second guide plate and slide in the horizontal waist-shaped hole.

4. The built-in edge wrapping mechanism according to claim 1, characterized in that The described hemming plate includes a vertical plate and a profiling pressing plate. The profiling pressing plate is installed inside the upper end of the vertical plate. The middle of the lower end of the vertical plate is installed on the front end of the upper surface of the first guide plate.

5. The built-in edge wrapping mechanism according to claim 4, characterized in that, A pressing mechanism is further designed above the hemming plate. The pressing mechanism includes a pressing cylinder and a profiling pressing edge plate. The profiling pressing edge plate is installed at the lower end of the pressing cylinder. The profiling pressing edge plate presses down on the profiling pressing plate for cooperation.

6. The built-in edge wrapping mechanism according to claim 2, characterized in that, The described guiding block is installed at the front end position on the upper surface of the lower plate.

7. The built-in edge wrapping mechanism according to claim 3, characterized in that, Two rectangular through slots are designed in the middle of the described guiding block. A partition is designed between the two rectangular through slots. An inclined slot is designed on the partition, and the two sides of the inclined slot are respectively connected to the rectangular through slots. The vertical waist-shaped hole is sleeved outside the partition, and the partition slides relatively within the vertical waist-shaped hole.

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