Novel double-shaft linkage edge covering mechanism

Abstract

The invention provides a novel double-shaft linkage edge covering mechanism which comprises a first driving insertion block, a first rotating assembly, a linkage piece and an edge covering assembly, the first rotating assembly comprises a first base, a rotating rod rotationally connected with the first base and a connecting block rotationally connected with the lower end of the rotating rod, and the first driving insertion block is arranged on the first base; the other end of the connecting block is rotationally connected with the linkage piece, and the other end of the linkage piece is fixedly connected with the edge covering assembly. According to the novel double-shaft linkage edge covering mechanism, the rotating rod is driven by the first driving inserting block to rotate in the direction away from the edge covering assembly, then the connecting block at the lower end is driven to move towards the edge covering assembly, the edge covering assembly is driven by the linkage piece to move forwards to the edge covering position of a product, and then the product is subjected to pre-edge covering and covering through the edge covering assembly; precise control over multiple composite actions of pushing, pre-edge-covering and bottom-covering of the edge-covering assembly is achieved, the actions are completed at a time, the mechanism is simplified, and a positive pressure cutter block does not need to be designed.

Description

Technical Field

[0001] The present invention relates to the technical field of stamping dies, in particular to a novel double-axis linkage hemming mechanism. Background Art

[0002] With the rapid development of the automotive industry, the structure of stamping dies is also constantly innovating and accumulating, meeting the personalized requirements of product design while reducing manufacturing costs. In the existing technology, such as the Chinese invention patent with publication number CN104399795A. They need lateral cylinders to provide a forming power source, and the mechanism needs to complete the pre-edging and edge pressing actions of the edge under the drive of the cylinder. Specifically, Mr. He of the above patent, the lower die drives the hydraulic cylinder to provide the forming force source required for the primary pre-bending of the material, the secondary free pre-bending and the pressing of the edge. The one-time pre-bending of the mechanism includes a one-time pre-bending preparation process and a one-time pre-bending process; the one-time pre-bending preparation process is that the pressure plate driving cylinder drives the inner plate forward pressing assembly to move downward along the guide rail to the forward pressing part, pressing the inner plate and outer plate on the lower die seat, and the side pressing driving cylinder drives the side pressing punch to press the appearance surface of the edge-binding related part laterally, and the edge-binding driving cylinder drives the bracket and the pre-bending composite knife block thereon to move horizontally, so that the one-time pre-bending surface of the pre-bending composite knife block is to the working position; the one-time pre-bending process is that the lower die seat moves upward along the guide column under the drive of the lower die driving hydraulic cylinder, the edge-binding surface of the outer plate contacts the one-time pre-bending surface of the pre-bending composite knife block and completes a one-time pre-bending forming, and the edge-binding angle of the large-angle edge is pre-bent from 105° to 150° to 90°, and the inner plate forward pressing assembly is always in the forward pressing working state and can be driven by the lower die seat to move up and down.

[0003] However, the above patent has a complex structure and requires positive pressure, and it is difficult to achieve a stable quality state due to the influence of an external power source. Summary of the Invention

[0004] The purpose of the present invention is to provide a novel double-axis linkage hemming mechanism to solve the problem that the existing hemming mechanism requires positive material pressing.

[0005] The present invention provides a new dual-axis linkage edging mechanism, including a first driving plug-in block, a first rotating assembly arranged on the lower side of the first driving plug-in block, a linkage member connected to the first rotating assembly, and an edging assembly connected to the linkage member. The first rotating assembly includes a first base, a rotating rod rotatably connected to the first base, and a connecting block rotatably connected to the lower end of the rotating rod. The other end of the connecting block is rotatably connected to the linkage member, and the other end of the linkage member is fixedly connected to the edging assembly.

[0006] The above-mentioned new dual-axis linkage edge wrapping mechanism drives the rotating rod to rotate in the direction away from the edge wrapping component through the first driving plug-in block, thereby driving the lower end connecting block to move toward the edge wrapping component, and driving the edge wrapping component forward to the edge wrapping position of the product through the linkage part, and then pre-edges and wraps the product through the edge wrapping component, realizing precise control of multiple compound actions of pushing, pre-edging and wrapping the edge wrapping component to the end, completing them at one time, simplifying the mechanism and eliminating the need to design a positive pressure knife block.

[0007] Furthermore, the edging assembly includes a second base, a second drive plug, a second rotating assembly arranged on the lower side of the second drive plug, an edging pressure block connected to the rotating end of the second rotating assembly, and a rotating assembly rotatably connected to the lower end of the edging pressure block, the second rotating assembly is rotatably connected to the middle part of the second base, and the other end of the rotating assembly is rotatably connected to the lower side of the second base. Furthermore, the second rotating assembly includes a rotating block and a first rotating shaft provided at the lower end of the rotating block, and the first rotating shaft is rotatably connected to the second base. Furthermore, the rotating rod is rotatably connected to the first base via a second rotating shaft. Furthermore, the rotating assembly includes a third rotating shaft, a rotating connecting block rotatably connected to the third rotating shaft, and a fourth rotating shaft, and the rotating connecting block is rotatably connected to the lower side of the second base through the fourth rotating shaft; the edging pressure block includes a connecting plate and a pressure plate fixed to the upper end of the connecting plate, one end of the connecting plate is connected to the rotating end of the second rotating assembly through a fifth rotating shaft, and the other end is rotatably connected to the third rotating shaft. Furthermore, two first guide rods are rotatably connected to the lower side of the rotating rod, one end of the first guide rod is rotatably connected to the rotating rod, and the other end is connected to a side of the first base away from the edging assembly. Furthermore, a second guide rod is provided on both sides of the lower end of the connecting plate, one end of the second guide rod is rotatably connected to the lower end of the connecting plate, and the other end is rotatably connected to the upper side of the second base. Furthermore, a first roller is provided at the upper end of the rotating rod, and the upper end of the rotating rod is rotatably connected to the first driving plug-in block via the first roller. Furthermore, a second roller is provided at the upper end of the rotating block, and the rotating block is rotatably connected to the second driving plug-in block via the second roller.

[0008] Furthermore, a snap-fit ​​notch is provided at the lower end of the first driving plug-in block. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 Schematic diagram of the three-dimensional structure of the novel double-axis linkage hemming mechanism in the first embodiment of the present invention; Figure 2 for Figure 1 Schematic diagram of part of the structure of the new double-axis linkage hemming mechanism; Figure 3 for Figure 1 A schematic diagram of the three-dimensional structure of the first base in the novel dual-axis linkage hemming mechanism; Figure 4 for Figure 1 Schematic diagram of the three-dimensional structure of the hemming pressing block in the new double-axis linkage hemming mechanism.

[0009] Description of main component symbols:

[0010] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0011] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. The drawings illustrate several embodiments of the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0012] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0013] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one skilled in the art to which this invention pertains. The terms used in this specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0014] See also Figures 1 to 4A novel dual-axis linkage hemming mechanism provided by an embodiment of the present invention includes a first driving block 10, a first rotating assembly 20 provided on the lower side of the first driving block 10, a linkage member 30 connected to the first rotating assembly 20, and an hemming assembly 40 connected to the linkage member 30. The first rotating assembly 20 includes a first base 21, a rotating rod 22 rotatably connected to the first base 21, and a connecting block 23 rotatably connected to the lower end of the rotating rod 22. The other end of the connecting block 23 is rotatably connected to the linkage member 30, and the other end of the linkage member 30 is fixedly connected to the hemming assembly 40.

[0015] The above-mentioned new dual-axis linkage edge wrapping mechanism drives the rotating rod 22 to rotate in the direction away from the edge wrapping component 40 through the first driving plug-in block 10, and then drives the lower end connecting block 23 to move toward the edge wrapping component 40, and drives the edge wrapping component 40 forward to the edge wrapping position of the product through the linkage part 30, and then pre-edges and wraps the product through the edge wrapping component 40, realizing precise control of multiple compound actions of pushing, pre-edging and wrapping the edge wrapping component to the end, completing them at one time, simplifying the mechanism and eliminating the need to design a positive pressure knife block.

[0016] In one embodiment of the present invention, the hemming assembly 40 includes a second base 41, a second drive block 42, a second rotating assembly 43 disposed below the second drive block 42, an hemming pressure block 44 connected to the rotating end of the second rotating assembly 43, and a rotating assembly 45 rotatably connected to the lower end of the hemming pressure block 44. The second rotating assembly 43 is rotatably connected to the middle portion of the second base 41, and the other end of the rotating assembly 45 is rotatably connected to the lower side of the second base 41. Specifically, the second drive block 42 is connected to a drive source such as a manipulator or a drive motor to rotate the second rotating assembly 43, which in turn drives the hemming pressure block 44 to pre-hem the product. The hemming pressure block 44 then drives the rotating assembly to rotate, which in turn drives the lower end of the hemming pressure block 44 to rotate around the second base 41 via the rotating assembly 45, thereby hemming the product. In one embodiment of the present invention, the second rotating assembly 43 includes a rotating block 431 and a first rotating shaft 432 disposed at the lower end of the rotating block 431. The first rotating shaft 432 is rotatably connected to the second base 41. Specifically, the second driving insert 42 is connected to a driving source such as a manipulator or a driving motor, driving the rotating block 431 to rotate about the first rotating shaft 432, thereby driving the hemming pressing block 44 at the free end of the rotating block 431 to rotate, thereby realizing the pre-hemming function. In one embodiment of the present invention, the rotating rod 22 is rotatably connected to the first base 21 via a second rotating shaft 24 to achieve the rotation function of the rotating rod 22 . In one embodiment of the present invention, the rotating assembly 45 includes a third rotating shaft 451, a rotating connection block 452 rotatably connected to the third rotating shaft 451, and a fourth rotating shaft 453. The rotating connection block 452 is rotatably connected to the lower side of the second base 41 via the fourth rotating shaft 453. The edge pressing block 44 includes a connecting plate 441 and a pressing plate 442 fixed to the upper end of the connecting plate 441. One end of the connecting plate 441 is connected to the rotating end of the second rotating assembly 43 via a fifth rotating shaft 443, and the other end is rotatably connected to the third rotating shaft 451. Specifically, the second driving plug 42 cooperates with the second roller 80 at the upper end of the rotating block 431 to drive the rotating block 431 to rotate about the first rotating shaft 432. When the rotating block 431 rotates, the connecting plate 441 of the edging pressing block is driven to rotate through the fifth rotating shaft 443. At the same time, since the connecting plate 441 is rotatably connected to the third rotating shaft 451 of the rotating component 45, the rotating component 45 will rotate with the rotation of the connecting plate 441, so that the edging pressing block 44 can pre-edge and wrap the product. In one embodiment of the present invention, two first guide rods 50 are rotatably connected to the lower side of the rotating rod 22. One end of each first guide rod 50 is rotatably connected to the rotating rod 22, and the other end is connected to the side of the first base 21 away from the hemming assembly 40. A second guide rod 60 is provided on either side of the lower end of the connecting plate 441. One end of each second guide rod 60 is rotatably connected to the lower end of the connecting plate 441, and the other end is rotatably connected to the upper side of the second base 41. The first guide rod 50 and the second guide rod 60 respectively guide and stabilize the rotation of the rotating rod 22 and the connecting plate 441. In one embodiment of the present invention, a first roller 70 is provided at the upper end of the rotating rod 22 , and the upper end of the rotating rod 22 is rotatably connected to the first driving plug 31 via the first roller 70 , so that the rotating rod 22 can rotate smoothly. In one embodiment of the present invention, a second roller 80 is provided at the upper end of the rotating block 431 , and the rotating block 431 is rotatably connected to the second driving plug-in block 42 via the second roller 80 .

[0017] In one embodiment of the present invention, a snap-fit ​​notch (not shown) is provided at the lower end of the first driving plug-in block 21 .

[0018] In the novel dual-axis linkage hemming mechanism, when hemming a product, a drive device, such as a drive motor, engages with the engaging notch at the lower end of the first drive block 10 to drive the first drive block 10. The first drive block 10 engages with the first roller 70 at the upper end of the rotating rod 22, driving the rotating rod to rotate about the second rotating axis 24, away from the hemming assembly 40. As the rotating rod 22 rotates, due to its rotational connection with the connecting block 23, the connecting block 23 moves toward the hemming assembly 40 as the rotating rod 22 rotates. The connecting block 23 drives the linkage member 30, which in turn drives the hemming assembly 40 forward to the product's hemming position. At this point, the drive device drives the second drive block 42 to move. The second drive block 42 engages with the second roller 80 at the upper end of the rotating block 431, driving the rotating block 431 to rotate about the first rotating axis 432. When the rotating block 431 rotates, the connecting plate 441 of the edge-wrapping pressing block rotates via the fifth rotating shaft 443. Simultaneously, because the connecting plate 441 is rotatably connected to the third rotating shaft 451 of the rotating assembly 45, the rotating assembly 45 rotates along with the rotation of the connecting plate 441, enabling the edge-wrapping pressing block 44 to pre-edge and close the product. Throughout this process, the first guide rod 50 and the second guide rod 60 respectively guide and stabilize the rotation of the rotating rod 22 and the connecting plate 441, ensuring the accuracy of the edge-wrapping operation.

[0019] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A new type of double-axis linkage hemming mechanism, characterized in that: It includes a first driving plug, a first rotating assembly arranged on the lower side of the first driving plug, a linkage connected to the first rotating assembly, and an edging assembly connected to the linkage. The first rotating assembly includes a first base, a rotating rod rotatably connected to the first base, and a connecting block rotatably connected to the lower end of the rotating rod. The other end of the connecting block is rotatably connected to the linkage, and the other end of the linkage is fixedly connected to the edging assembly.

2. The novel double-axis linkage hemming mechanism according to claim 1 is characterized in that: The edging assembly includes a second base, a second driving plug, a second rotating assembly arranged on the lower side of the second driving plug, an edging pressure block connected to the rotating end of the second rotating assembly, and a rotating assembly rotatably connected to the lower end of the edging pressure block. The second rotating assembly is rotatably connected to the middle part of the second base, and the other end of the rotating assembly is rotatably connected to the lower side of the second base.

3. The novel double-axis linkage hemming mechanism according to claim 2 is characterized in that: The second rotating assembly includes a rotating block and a first rotating shaft provided at the lower end of the rotating block, and the first rotating shaft is rotatably connected to the second base.

4. The novel double-axis linkage hemming mechanism according to claim 1 is characterized in that: The rotating rod is rotatably connected to the first base via a second rotating shaft.

5. The novel double-axis linkage hemming mechanism according to claim 2 is characterized in that: The rotating assembly includes a third rotating shaft, a rotating connecting block rotatably connected to the third rotating shaft, and a fourth rotating shaft, and the rotating connecting block is rotatably connected to the lower side of the second base through the fourth rotating shaft; the edging pressure block includes a connecting plate and a pressure plate fixed to the upper end of the connecting plate, one end of the connecting plate is connected to the rotating end of the second rotating assembly through the fifth rotating shaft, and the other end is rotatably connected to the third rotating shaft.

6. The novel double-axis linkage hemming mechanism according to claim 1 is characterized in that: Two first guide rods are rotatably connected to the lower side of the rotating rod. One end of the first guide rod is rotatably connected to the rotating rod, and the other end is connected to a side of the first base away from the edge binding assembly.

7. The novel double-axis linkage hemming mechanism according to claim 5 is characterized in that: A second guide rod is respectively provided on both sides of the lower end of the connecting plate. One end of the second guide rod is rotatably connected to the lower end of the connecting plate, and the other end is rotatably connected to the upper side of the second base.

8. The novel double-axis linkage hemming mechanism according to claim 1 is characterized in that: A first roller is provided at the upper end of the rotating rod, and the upper end of the rotating rod is rotatably connected to the first driving plug-in block via the first roller.

9. The novel double-axis linkage hemming mechanism according to claim 3 is characterized in that: A second roller is provided at the upper end of the rotating block, and the rotating block is rotatably connected to the second driving plug-in block via the second roller.

10. The novel double-axis linkage hemming mechanism according to claim 1, characterized in that: A clamping notch is provided at the lower end of the first driving plug-in block.

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