A bending processing device for an automotive interior panel

Abstract

The application discloses a bending processing device for automobile interior plate material and relates to the technical field of bending processing. The bending processing device comprises a workbench, a bending mechanism and a material stripping mechanism. The bending mechanism is arranged on the workbench and is used for bending processing of the plate material. The material stripping mechanism is arranged in a lower die of the bending mechanism and is used for pushing the bent plate material out of the lower die upwards and keeping the plate material from being stuck. The upper die and the lower die on the bending mechanism are used for bending the plate material. After the bending is completed, the material stripping mechanism is used for pushing the plate material out of the extrusion groove of the lower die upwards. After the upper die is separated from the plate material, the stop blocks on both sides of the push plate are used for limiting the bent plate material automatically, so that the plate material is prevented from moving randomly and being inclined and stuck in the lower die, plate material damage and plate material removal inconvenience are avoided, and finally, the plate material can be removed from the push plate by moving the lower pressing rod downwards.

Description

Technical Field

[0001] This invention relates to the technical field of bending processing, and specifically to a bending processing device for automotive interior panels. Background Technology

[0002] A bending device is a mechanical device used to bend or fold materials (such as metals, plastics, and paper). These devices are widely used in manufacturing, construction, metal processing, and electronics manufacturing. In the automotive manufacturing industry, some automotive interior panels need to be bent to achieve the required shape during production. Existing bending devices use a stripping mechanism to eject the panel from the mold groove for easy removal by workers. However, during the ejection process, the bent panel may tip over and become stuck in the lower mold, causing damage from collision and hindering the worker's ability to remove the panel from the mold. Summary of the Invention

[0003] The purpose of this invention is to provide a bending processing device for automotive interior panels to overcome the above-mentioned defects in the prior art.

[0004] A bending processing device for automotive interior panels includes a worktable, a bending mechanism, and a stripping mechanism.

[0005] The bending mechanism is mounted on the workbench and is used to bend the sheet metal.

[0006] The stripping mechanism is located in the lower mold of the bending mechanism and is used to push the bent sheet material upward from the lower mold and keep it from jamming.

[0007] Preferably, the bending mechanism further includes a hydraulic cylinder and an upper mold. The lower mold is set on the worktable and has two pull rods on it. The top of the two pull rods is provided with the same top plate. The cylinder body of the hydraulic cylinder is vertically installed on the top plate and the lower end of its piston rod is connected to the upper mold that is slidably connected to the pull rod. The bottom of the upper mold is provided with an arc-shaped pressure block. The lower mold is set on the worktable and has an extrusion groove that cooperates with the arc-shaped pressure block.

[0008] Preferably, the unloading mechanism includes push rods, push plates, springs, and limiting components. Two push rods are provided and slidably connected in the lower mold and located in the extrusion groove. The tops of the two push rods are connected to the same push plate, which has an arc-shaped groove. The spring is fitted onto the push rod. The limiting component is provided on the push plate and is used to limit the bent sheet material to prevent it from shaking or tilting.

[0009] Preferably, the limiting assembly includes a second spring, a stop block, a sliding plate and a lower pressing plate. The push plate is symmetrically provided with brackets on both sides of the arc-shaped groove, each bracket is slidably connected with a sliding plate, the stop block is arranged at the inner end of the sliding plate and is provided with a first inclined surface, the second spring is sleeved on the sliding plate and located between the stop disc on the sliding plate and the bracket, the lower pressing plate is slidably connected to the guide block on the side surface of the push plate, and the upper end thereof is provided with a squeezing block inserted into the driving groove on the sliding plate, the squeezing block is provided with a second inclined surface, the sliding plate is provided with a third inclined surface in the driving groove that cooperates with the second inclined surface, and the two lower pressing plates are connected through a fixing plate slidably connected in the guide groove on the push plate.

[0010] Preferably, the lower die is symmetrically provided with limiting blocks on both sides of the arc-shaped groove, and the limiting block is of a "U"-shaped structure.

[0011] Preferably, the pull rod is fixed to the top plate by a fastening nut.

[0012] Preferably, a lower pressing rod is provided on one side of the fixing plate.

[0013] The beneficial effects achieved by the present invention are as follows:

[0014] In the present application, the plate is bent by the upper die and the lower die on the bending mechanism. After the bending is completed, the plate is pushed upward out of the extrusion groove of the lower die by the stripping mechanism. After the upper die is separated from the plate, the bent plate is automatically limited by the stop blocks on both sides of the push plate, so as to prevent the plate from moving arbitrarily, causing the plate to tilt and get stuck in the lower die, which would damage the plate and make it inconvenient to take down the plate. Finally, the plate can be conveniently taken down from the push plate by moving the lower pressing rod downward. Brief Description of the Drawings

[0015] Figure 1 is a schematic structural view of the whole of the present invention.

[0016] Figure 2 is a top view of the lower die and the stripping mechanism of the present invention.

[0017] Figure 3 is a schematic structural view of the stripping mechanism of the present invention.

[0018] Figure 4 is a schematic structural view of the limiting assembly of the present invention.

[0019] Figure 5 is a partial enlarged view of part A in Figure 4 .

[0020] Figure 6 is a schematic structural view of the lower pressing plate and the squeezing block of the present invention.

[0021] Figure 7 is a schematic structural view of the sliding plate and the stop block of the present invention.

[0022] In the diagram, 1. Workbench; 2. Bending mechanism; 21. Lower die; 211. Limiting block; 22. Tie rod; 23. Top plate; 24. Hydraulic cylinder; 25. Upper die; 26. Arc-shaped pressure block; 27. Extrusion groove; 3. Unloading mechanism; 31. Push rod; 32. Push plate; 321. Guide groove; 33. Arc-shaped groove; 34. Spring 1; 35. Limiting component; 351. Bracket; 352. Slide plate; 3521. Baffle; 3522. Drive groove; 3523. Inclined surface 3; 353. Stop block; 3531. Inclined surface 1; 354. Spring 2; 355. Lower pressure plate; 3551. Guide block; 3552. Extrusion block; 3553. Inclined surface 2; 356. Fixing plate; 3561. Lower pressure rod. Detailed Implementation

[0023] The following detailed description of the embodiments, with reference to the accompanying drawings, will further illustrate the specific implementation of the present invention, in order to help those skilled in the art to have a more complete, accurate, and in-depth understanding of the concept and technical solutions of the present invention.

[0024] like Figure 1-7 As shown, the present invention provides a bending processing device for automotive interior panels, including a worktable 1, a bending mechanism 2, and a stripping mechanism 3. The bending mechanism 2 is disposed on the worktable 1 and is used to bend the panels. The stripping mechanism 3 is disposed in the lower mold 21 of the bending mechanism 2 and is used to push the bent panels upward from the lower mold 21 and keep them from jamming.

[0025] It should be noted that the bending mechanism 2 also includes a hydraulic cylinder 24 and an upper mold 25. The lower mold 21 is set on the workbench 1 and has two pull rods 22 on it. The lower mold 21 has symmetrically arranged "U"-shaped limiting blocks 211 on both sides of the arc groove 33 to pre-position the unbent sheet metal. The top of the two pull rods 22 is provided with the same top plate 23. The pull rods 22 are fixed to the top plate 23 by fastening nuts, so as to facilitate the installation and removal of the top plate 23 on the pull rods 22. The cylinder body of the hydraulic cylinder 24 is vertically installed on the top plate 23 and its piston rod lower end is connected to the upper mold 25 that is slidably connected to the pull rod 22. The bottom of the upper mold 25 is provided with an arc-shaped pressure block 26. The lower mold 21 is set on the workbench 1 and has an extrusion groove 27 that cooperates with the arc-shaped pressure block 26.

[0026] Furthermore, the unloading mechanism 3 includes push rods 31, push plates 32, spring 34, and limiting components 35. Two push rods 31 are slidably connected to the lower mold 21 and located in the extrusion groove 27. The tops of the two push rods 31 are connected to the same push plate 32, which has an arc-shaped groove 33. Spring 34 is sleeved on the push rods 31. The limiting components 35 are located on the push plate 32 and are used to limit the bent sheet material to prevent wobbling and tilting. The limiting components 35 include spring 354, a stop block 353, a sliding plate 352, and a lower pressure plate 355. The push plate 32 has symmetrically arranged supports 351 on both sides of the arc-shaped groove 33, and a sliding plate 352 is slidably connected to each support 351. The stop block 353 is located on the sliding plate 355. The inner end of 2 is provided with a first inclined surface 3531. The second spring 354 is sleeved on the slide plate 352 and located between the baffle 3521 and the bracket 351 on the slide plate 352. The lower pressure plate 355 is slidably connected to the guide block 3551 on the side of the push plate 32 and has a pressing block 3552 inserted into the drive groove 3522 on the slide plate 352 at its upper end. The pressing block 3552 is provided with a second inclined surface 3553. The slide plate 352 is provided with a third inclined surface 3523 in the drive groove 3522 that cooperates with the second inclined surface 3553. The two lower pressure plates 355 are connected to a fixed plate 356 slidably connected to the guide groove 321 on the push plate 32. A lower pressure rod 3561 is provided on one side of the fixed plate 356 to facilitate pressing down the fixed plate 356.

[0027] Detailed implementation methods and principles:

[0028] First, the sheet material to be bent is placed between the two limiting blocks 211 of the lower mold 21. Then, the piston rod of the hydraulic cylinder 24 is controlled to drive the upper mold 25 and the arc-shaped pressure block 26 to move downward along the pull rod 22. The arc-shaped pressure block 26 bends the sheet material towards the extrusion groove 27 of the lower mold 21, causing the push plate 32 to move downward. The spring 34 on the push rod 31 is compressed. When the sheet material contacts the stop block 353 on the push plate 32, the inclined surface 3531 on the stop block 353 presses the stop block 353 and the slide plate 352 outward. The spring 354 on the slide plate 352 is compressed. Finally, the stop block 353 is located on the side above the sheet material.

[0029] After the sheet is bent, the piston rod of the hydraulic cylinder 24 drives the upper mold 25 and the arc-shaped pressure block 26 to move upward. Under the elastic force of the spring 34 on the push rod 31, the bent sheet moves upward under the push of the push plate 32. When the arc-shaped pressure block 26 at the bottom of the upper mold 25 separates from the sheet, under the elastic force of the spring 354 on the slide plate 352, the two stops 353 limit the two sides of the sheet. At the same time, the lower pressure plate 355 moves upward through the extrusion block 3552.

[0030] Next, the worker presses the lower pressure plate 355 downward using the lower pressure rod 3561, causing the lower pressure plate 355 to move down along the guide groove 321 on the push plate 32. The extrusion block 3552 on the lower pressure plate 355 extrudes the slide plate 352 outward through the inclined plane 3553. When the lower pressure plate 355 contacts the bottom of the guide groove 321, the stop block 353 just disengages from the plate, and the worker removes the bent plate from the lower mold 21.

[0031] In summary, this application bends the sheet metal using the upper die 25 and lower die 21 on the bending mechanism. After bending, the sheet metal is pushed upward from the extrusion groove 27 of the lower die 21 by the stripping mechanism 3. After the upper die 25 separates from the sheet metal, the blocks 353 on both sides of the push plate 32 automatically limit the bent sheet metal to prevent it from moving freely and becoming tilted and stuck in the lower die 21, which would damage the sheet metal and make it difficult to remove. Finally, the sheet metal can be easily removed from the push plate 32 by moving the lower pressure rod 3561 downward.

[0032] The embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A bending processing device for automotive interior panels, characterized in that: comprising a workbench (1), a bending mechanism (2) and a stripping mechanism (3); said bending mechanism (2) is arranged on the workbench (1) and used for bending and processing plates; said stripping mechanism (3) is arranged in the lower die (21) of the bending mechanism (2) and used for pushing the bent plate upward out of the lower die (21) to avoid material jamming; said bending mechanism (2) further comprises a hydraulic cylinder (24) and an upper die (25), said lower die (21) is arranged on the workbench (1) and provided with two pull rods (22) thereon, the tops of the two pull rods (22) are provided with the same top plate (23), the cylinder body of said hydraulic cylinder (24) is vertically mounted on the top plate (23) and the lower end of its piston rod is connected with the upper die (25) slidably connected to the pull rods (22), the bottom of said upper die (25) is provided with an arc-shaped pressing block (26), and said lower die (21) is arranged on the workbench (1) and provided with a pressing groove (27) matched with the arc-shaped pressing block (26); said stripping mechanism (3) comprises push rods (31), a push plate (32), a first spring (34) and a limit assembly (35), two said push rods (31) are provided, slidably connected in the lower die (21) and located in the pressing groove (27), the tops of the two push rods (31) are connected with the same push plate (32), said push plate (32) is provided with an arc-shaped groove (33), said first spring (34) is sleeved on the push rods (31), and said limit assembly (35) is arranged on the push plate (32) and used for limiting the bent plate to avoid shaking and tilting; said limit assembly (35) comprises a second spring (354), a stopper (353), a sliding plate (352) and a lower pressing plate (355), said push plate (32) is symmetrically provided with brackets (351) on both sides of the arc-shaped groove (33), each bracket (351) is slidably connected with a sliding plate (352), said stopper (353) is arranged at the inner end of the sliding plate (352) and provided with a first inclined surface (3531) thereon, said second spring (354) is sleeved on the sliding plate (352) and located between the stop disc (3521) on the sliding plate (352) and the bracket (351), said lower pressing plate (355) is slidably connected to the guide block (3551) on the side of the push plate (32) and its upper end is provided with a pressing block (3552) inserted into the driving groove (3522) on the sliding plate (352), said pressing block (3552) is provided with a second inclined surface (3553), said sliding plate (352) is provided with a third inclined surface (3523) matched with the second inclined surface (3553) in the driving groove (3522), and the two lower pressing plates (355) are connected through a fixing plate (356) slidably connected in the guide groove (321) on the push plate (32).

2. The bending processing device for automotive interior panels according to claim 1, characterized in that: Said lower die (21) is symmetrically provided with limit blocks (211) on both sides of the arc-shaped groove (33), and said limit blocks (211) are of a "U"-shaped structure.

3. The bending processing device for automotive interior panels according to claim 1, characterized in that: Said pull rods (22) are fixed to the top plate (23) via fastening nuts.

4. The bending processing device for automotive interior panels according to claim 1, characterized in that: One side of said fixing plate (356) is provided with a lower pressing rod (3561).

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