Aluminum alloy stretch bending die

Abstract

The invention discloses an aluminum alloy stretch bending die which is characterized in that the aluminum alloy stretch bending die comprises a bottom plate and a full-profiling clamping mechanism arranged on the bottom plate, the full-profiling clamping mechanism comprises two chucks which are oppositely arranged, the two chucks are spaced in the horizontal direction, and the two chucks are used for clamping an aluminum alloy profile; wherein a profiling block is arranged on the surface of one side, close to the other clamping head, of at least one clamping head, and the profiling block is installed on the clamping head through an elastic piece. According to the designed aluminum alloy stretch-bending die, when a full-profiling clamping mechanism is designed, clamping force is evenly distributed on an aluminum alloy profile product by ingeniously applying parts such as the elastic piece and the profiling block, and therefore the deformation amount of an end clamping area of the aluminum alloy profile product is effectively reduced, the clamping stability is improved, and the product quality is improved. And meanwhile, the use amount of aluminum profiles is reduced, and the stability of production quality is improved.

Description

Technical Field

[0001] This invention relates to the field of aluminum alloy profile production technology, and in particular to an aluminum alloy bending die. Background Technology

[0002] As is well known, in the field of aluminum alloy production technology, especially in the process of aluminum alloy bending and forming, it is often necessary to control the clamping mechanism to clamp and fix the two ends of the aluminum alloy profile to transmit three-dimensional force, so that the aluminum alloy profile is bent into a product with the required form and position tolerance within a certain range. Therefore, the core requirement for this clamping mechanism is that the clamping force is stable and that after clamping the aluminum alloy profile, the two ends of the clamped profile do not slip relative to each other during the forming process.

[0003] Currently, there are two main clamping solutions for bending aluminum alloy profiles: Solution 1 uses a hydraulically assisted clamping block with clamping teeth to hold the aluminum alloy profile; Solution 2 uses a slider clamping mechanism to clamp the aluminum alloy profile from top to bottom. However, both solutions still have the following obvious drawbacks in practical applications: 1. High production cost: (1) Low material utilization: The clamping mechanism adopted in Scheme 1 relies on unidirectional pressure to completely deform the clamping area to achieve the purpose of clamping and fixing. Therefore, in order to reduce the impact of clamping deformation on the effective area, it usually needs to increase the distance between the aluminum alloy clamping area and the effective area, which leads to an increase in the amount of aluminum profile used, serious material waste, and increased production cost; (2) Low equipment utilization: The clamping block with clamping teeth in the clamping mechanism adopted in Scheme 1 is tightly fitted with the aluminum profile. After forming, the process of taking out the formed part requires the use of tools to pry it out, which directly affects the production rhythm, resulting in high equipment idle rate, large labor load of personnel, and the inability to fully release the production capacity.

[0004] 2. Insufficient clamping stability: The slider clamping mechanism used in Scheme 2 needs to convert the vertical clamping force into the horizontal clamping force, which will result in large internal loss and obvious fluctuation of the clamping force value, and will easily cause frequent clamping slippage, resulting in unstable forming dimensions of the guide rail profile.

[0005] 3. Poor production quality stability: Due to cost constraints, the distance between the clamping area and the effective area of ​​the aluminum profile cannot be increased indefinitely. Slight differences in the material and placement position of different batches of aluminum profiles will cause significant fluctuations in the finished product state after bending, making it difficult to guarantee the quality stability of the product. Summary of the Invention

[0006] The technical problem to be solved by the present invention is: The present invention discloses a new aluminum alloy bending die to solve the problems of high production cost, insufficient clamping stability and poor production quality stability when using the clamping mechanism with toothed blocks or sliders in the existing aluminum alloy bending die.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: an aluminum alloy bending die, comprising: a base plate and a full-contour clamping mechanism disposed on the base plate, the full-contour clamping mechanism comprising two clamps disposed opposite to each other, the two clamps having a distance between them in the horizontal direction, and the two clamps being used to clamp aluminum alloy profiles; wherein, at least one of the clamps has a contour block on a side surface near the other clamp, and the contour block is mounted on the clamp by an elastic element.

[0008] In the above-mentioned technical solution of the present invention, a new aluminum alloy bending die is designed. This aluminum alloy bending die features an optimized full-contour clamping mechanism. Based on the shape characteristics of the aluminum alloy profile product, its clamping structure has been improved. By introducing elastic elements and contour blocks, the fit between the clamping head and the aluminum alloy profile product is greatly optimized. In practical applications, the fit between the clamping head and the aluminum alloy profile product can reach more than 70%, thereby improving the pressure distribution level when clamping the aluminum alloy profile product, reducing the deformation of the clamped area of ​​the aluminum alloy profile product, maintaining the original cross-sectional contour, reducing the deformation area, and improving the clamping effectiveness and stability of the aluminum alloy profile product.

[0009] Accordingly, in practical applications, the aluminum alloy bending die designed in this invention can also facilitate users to adjust the placement direction of aluminum alloy profiles, thereby giving operators more space for loading and unloading, thus shortening the production cycle and achieving higher production efficiency. It has good prospects for promotion and application value.

[0010] Furthermore, in the aluminum alloy bending die of the present invention, the fully contoured clamping mechanism further includes a first robotic arm and a second robotic arm, with the two clamps respectively mounted on the first robotic arm and the second robotic arm; wherein, the first robotic arm and / or the second robotic arm are used to drive the two clamps to move closer or further away from each other, and after the two clamps clamp the aluminum alloy profile, force is applied to bend the aluminum alloy profile into shape.

[0011] Furthermore, in the aluminum alloy bending die of the present invention, the elastic element is a spring, and one end of the elastic element in the horizontal direction abuts against the contour block, and the other end of the elastic element in the horizontal direction abuts against the clamp.

[0012] Furthermore, in the aluminum alloy bending die of the present invention, the clamp is provided with a receiving cavity, at least a portion of the contour block is disposed in the receiving cavity and abuts against the elastic member disposed in the receiving cavity; wherein, the clamp is also provided with a guide member and a guide hole, the guide hole is connected to the receiving cavity, and the guide member extends from the guide hole into the receiving cavity and is connected to the contour block.

[0013] Furthermore, in the aluminum alloy bending die of the present invention, the chuck without the contour block has a serrated pattern on the side surface near the other chuck.

[0014] Furthermore, the aluminum alloy bending die of the present invention also includes an auxiliary forming mechanism, which includes a lower pressure plate assembly and a cavity assembly. The lower pressure plate assembly is used to limit the position of the aluminum alloy profile in the vertical direction; the cavity assembly is used to limit the bending curvature of the aluminum alloy profile during the bending forming process.

[0015] Furthermore, in the aluminum alloy bending die of the present invention, the lower pressure plate assembly includes a mounting bracket, which is disposed on the base plate and has a guide rail extending in the vertical direction; wherein, the lower pressure plate assembly also includes a lower pressure plate, which is slidably disposed on the guide rail.

[0016] Furthermore, in the aluminum alloy bending die of the present invention, the cavity assembly includes an upper die plate and a lower die plate, the upper die plate is connected to the lower pressure plate, and the lower die plate is disposed on the mounting bracket; wherein, the mounting bracket is also provided with an adjusting bolt, one end of the adjusting bolt abutting against the lower die plate to adjust the posture of the lower die plate on the mounting bracket.

[0017] Furthermore, the aluminum alloy bending die of the present invention also includes a cutting assembly, which includes a support base and a cutting mechanism and a clamping mechanism disposed on the support base. The clamping mechanism includes two clamping blocks disposed opposite to each other, the two clamping blocks having a distance between them in the horizontal direction, and the two clamping blocks being used to clamp the aluminum alloy profile. The cutting mechanism includes a cutter, which is used to cut the aluminum alloy profile clamped by the two clamping blocks under the drive of a driving member.

[0018] Furthermore, in the aluminum alloy bending die of the present invention, the cutting assembly further includes a guide groove, which is disposed on the support base and located below the horizontal spacing between the two clamping blocks.

[0019] The beneficial effects of this invention are as follows: The aluminum alloy bending die designed in this invention has a reasonable design for its full-contour clamping mechanism. Compared with the clamping mechanism used in traditional aluminum alloy bending dies, this full-contour clamping mechanism cleverly uses elastic elements and contour blocks to evenly distribute the clamping force on the aluminum alloy profile product, thereby reducing the deformation of the clamping area at the end of the aluminum alloy profile product, improving clamping stability, and reducing the amount of aluminum profile used. Furthermore, in practical applications, the aluminum alloy bending die designed in this invention can also facilitate users to adjust the placement direction of the aluminum alloy profile, thereby giving operators more space for loading and unloading, shortening the production cycle, and achieving higher production efficiency. This effectively solves the problems of high production cost, insufficient clamping stability, and poor production quality stability that exist when using existing aluminum alloy bending dies with toothed clamping blocks or slider clamping mechanisms to clamp aluminum alloys. Attached Figure Description

[0020] Figure 1 This is a front view of the aluminum alloy bending die according to one embodiment of the present invention; Figure 2 This is a top view of the aluminum alloy bending die according to one embodiment of the present invention; Figure 3 This is a side view of the aluminum alloy bending die according to one embodiment of the present invention; Figure 4 for Figure 1 A magnified view of part A of the aluminum alloy bending die shown; Figure 5 for Figure 2 A magnified view of part B of the aluminum alloy bending die shown; Figure 6 This is a side perspective view of the first and second chucks of the fully contoured clamping mechanism of the aluminum alloy bending die according to one embodiment of the present invention. Figure 7 This is a top perspective view of the first and second chucks of the fully contoured clamping mechanism in one embodiment of the aluminum alloy bending die described in this invention.

[0021] Label Explanation: 1. Base plate; 11. Material preparation box; 2. Full-contour clamping mechanism; 21. First chuck; 211. Serrated pattern; 22. Second chuck; 23. Contour block; 24. Elastic element; 25. Receiving cavity; 26. Guide element; 27. Guide hole; 3. Lower pressure plate assembly; 31. Mounting bracket; 32. Guide rail; 33. Lower pressure plate; 4. Cavity assembly; 41. Upper mold plate; 42. Lower mold plate; 43. Adjusting bolts; 5. Cutting assembly; 51. Support base; 52. Cutter; 53. Feed chute; 6. Aluminum alloy profiles. Detailed Implementation

[0022] To explain in detail the technical content, objectives, and effects of the present invention, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0023] like Figure 1 , Figure 2 As shown, and in conjunction with reference Figure 5 In this invention, compared to the clamping mechanism used in traditional aluminum alloy bending dies, the aluminum alloy bending die designed in this invention has a rationally designed full-contour clamping mechanism 2, which specifically includes: The base plate 1 and the fully contoured clamping mechanism 2 disposed on the base plate 1. The fully contoured clamping mechanism 2 specifically includes two clamps disposed opposite to each other, the two clamps having a gap in the horizontal direction, namely a first clamp 21 and a second clamp 22, and the two clamps are used to clamp the aluminum alloy profile 6; wherein, at least one clamp can have a contoured block 23 on one side surface near the other clamp, and the contoured block 23 is specifically mounted on the clamp by an elastic member 24.

[0024] In the above-mentioned technical solution of the present invention, the aluminum alloy bending die improves the clamping structure of its full-contour clamping mechanism 2 based on the shape characteristics of the aluminum alloy profile 6. By introducing the elastic element 24 and the contour block 23, the degree of fit between the clamp and the aluminum alloy profile 6 is greatly optimized. In practical applications, the degree of fit between the clamp and the aluminum alloy profile 6 can reach more than 70%, thereby improving the pressure distribution level when clamping the aluminum alloy profile 6, reducing the deformation of the clamped area of ​​the aluminum alloy profile 6, maintaining the original cross-sectional profile, reducing the deformation area, and improving the clamping effectiveness and stability of the aluminum alloy profile 6.

[0025] Accordingly, see Figure 1 and Figure 2 As shown, in practical applications, operators can also adjust the placement direction of the aluminum alloy profile 6, thereby giving operators more space for loading and unloading, simplifying the difficulty of loading and unloading operations, shortening the production cycle, and thus obtaining higher production efficiency.

[0026] It should be noted that, see Figure 5 In conjunction with reference Figure 6 and Figure 7As shown, in practical applications, in order to ensure that the first clamp 21 and the second clamp 22 can clamp each other, the first clamp 21 can be specifically installed on the first robotic arm, and the second clamp 22 can be specifically installed on the second robotic arm. At this time, the first robotic arm and / or the second robotic arm can be used to drive the two clamps to move closer or further away from each other, and after the two clamps clamp the aluminum alloy profile 6, force is applied to make the aluminum alloy profile 6 bend and form.

[0027] In practical applications, in order to ensure a more stable process of clamping the aluminum alloy profile 6, in some specific embodiments, the position of the second clamp 22 and the second robotic arm installed thereon can be kept stationary to facilitate the placement of the aluminum alloy profile 6. At this time, the first robotic arm can be used to drive the first clamp 21 to approach the second clamp 22, and after the first clamp 21 moves to a suitable position, the first clamp 21 and the second clamp 22 will squeeze each other to provide extrusion force for the aluminum alloy profile 6.

[0028] At this time, as Figure 6 and Figure 7 As shown, the aforementioned contour block 23 and elastic element 24 can both be specifically disposed on the aforementioned second clamp 22, and the elastic element 24 can be specifically selected as a spring. In order to ensure the stability of the installation and the stability of the operation of the contour block 23, in practical applications, a receiving cavity 25 can also be provided on the aforementioned second clamp 22, and at least part of the contour block 23 can be disposed in the receiving cavity 25 so that the contour block 23 can abut against the elastic element 24 disposed in the receiving cavity 25. At this time, one end of the spring in the horizontal direction can abut against the contour block 23, and the other end of the elastic element 24 in the horizontal direction abuts against the inner wall of the receiving cavity 25 of the second clamp 22.

[0029] Based on this, see Figure 6 and Figure 7 When the first clamp 21 and the second clamp 22 are pressed together, the contour block 23, due to its conformal fit with the aluminum alloy profile 6, will also be subjected to force. At this time, the contour block 23, under the pressure, will retract into the receiving cavity 25 of the second clamp 22 and compress the elastic element 24 to undergo elastic deformation, thus forming a retraction displacement. This prevents the aluminum alloy profile 6 from being directly subjected to rigid compression, which could lead to large-scale deformation and affect subsequent production quality. After the aluminum alloy profile 6 is bent and shaped, the first clamp 21 and the second clamp 22 separate. The contour block 23 is no longer subjected to pressure and will be lifted due to the elastic deformation of the elastic element 24, thus completing its reset. The first and second robotic arms can then open to allow the operator to directly remove the bent aluminum alloy profile 6.

[0030] Of course, such as Figure 7As shown, considering durability and reliability, to avoid the misalignment of the contour block 23 relative to the receiving cavity 25 causing limited retraction or reset of the contour block 23, a guide hole 27 is specifically provided on the second chuck 22 in practical applications. This guide hole 27 can communicate with the receiving cavity 25, and a bolt can be used as a guide 26 so that part of the bolt can extend from the guide hole 27 into the receiving cavity 25 and connect with the contour block 23. Thus, when the contour block 23 moves in the receiving cavity 25, the bolt, as the guide 26, can also move in the guide hole 27, so as to guide the displacement direction of the contour block 23 based on the extension direction of the guide hole 27.

[0031] In addition, see further Figure 7 To ensure stability when clamping the aluminum alloy profile 6, when the second clamp 22 is specifically used to install the contour block 23, the first clamp 21 without the contour block 23 can also be provided with a serrated pattern 211 on the side surface near the second clamp 22. When the first clamp 21 and the second clamp 22 clamp the aluminum alloy profile 6, the serrated pattern 211 increases the friction between the first clamp 21 and the aluminum alloy profile 6, thus preventing further displacement of the aluminum alloy profile 6 after clamping.

[0032] Accordingly, see further Figure 1 As can be seen, in order to ensure that the aluminum alloy profile 6 can ultimately obtain a product that meets the preset requirements during the bending process of the aluminum alloy profile 6 designed in this invention, an auxiliary forming mechanism can also be installed on the base plate 1. The auxiliary forming mechanism can specifically include a lower pressure plate assembly 3 and a cavity assembly 4. The lower pressure plate assembly 3 is specifically used to limit the position of the aluminum alloy profile 6 in the vertical direction, while the cavity assembly 4 is specifically used to limit the bending curvature of the aluminum alloy profile 6 during the bending process to obtain the bending curvature that meets the preset requirements.

[0033] In some specific embodiments, see Figure 4 and Figure 5As shown, the aforementioned lower pressure plate assembly 3 may specifically include a mounting bracket 31, which is disposed on the base plate 1, and the mounting bracket 31 is provided with a guide rail 32 extending in the vertical direction; wherein, the aforementioned lower pressure plate assembly 3 also includes a lower pressure plate 33, which is slidably disposed on the guide rail 32 so that when subsequently driven by an external hydraulic cylinder, it moves up and down along the extension direction of the guide rail 32; wherein, the hydraulic cylinder can specifically control the lower pressure plate 33 to reach the endpoint of its downward movement in the vertical direction, thereby limiting its position above the aluminum alloy profile 6 in the vertical direction. Based on this, the cavity assembly 4 includes an upper mold plate 41 and a lower mold plate 42. The upper mold plate 41 is connected to the lower pressure plate 33 of the lower pressure plate assembly 3 so as to be synchronously driven by the lower pressure plate 33 for limiting. The lower mold plate 42 is specifically disposed on the mounting bracket 31. The lower mold plate 42 can specifically cooperate with the upper mold plate 41 to form an arc-shaped cavity, thereby limiting the bending curvature of the aluminum alloy profile 6.

[0034] Of course, such as Figure 3 and Figure 4 As shown, in practical applications, considering the possibility of needing to adjust the cavity assembly 4, an adjusting bolt 43 can be provided on the mounting bracket 31. One end of the adjusting bolt 43 can specifically abut against the lower mold plate 42. At this time, the operator can adjust the posture of the lower mold plate 42 on the mounting bracket 31 through the adjusting bolt to meet different molding posture requirements.

[0035] In addition, see Figure 1 and Figure 4 As shown, in some specific embodiments, in order to improve production efficiency, a cutting component 5 may be specifically provided. The cutting component 5 may include a support base 51 and a cutting mechanism, a clamping mechanism and a guide groove 53 provided on the support base 51.

[0036] In practical applications, operators can specifically select aluminum alloy profiles 6 with longer dimensions to form them in one step using an aluminum alloy bending die. After forming, the clamping mechanism can use two clamping blocks that are arranged opposite each other to hold the large-sized aluminum alloy profile 6. The two clamping blocks are spaced apart in the horizontal direction. The cutting blade 52 of the cutting mechanism is driven by the drive component to cut the aluminum alloy profile 6 held by the two clamping blocks, dividing the large-sized aluminum alloy profile 6 into two parts, thus achieving the goal of producing two aluminum alloy profile products 6 in one processing step.

[0037] Of course, the reason for setting up the above-mentioned guide groove 53, and specifically setting the guide groove 53 below the horizontal distance between the two clamping blocks, is to collect the waste material cut by the cutter 52, so that the scrap material can fall into the guide groove 53 and be easily discharged later, so as to avoid affecting the normal use of the aluminum alloy bending die.

[0038] Additionally, see further. Figure 2 As shown, in practical applications, in order to enhance adaptability, a spare parts box 11 can be set on the base plate 1. The spare parts box 11 can be used to place spare parts and chucks to be used, so that users can disassemble and replace new spare parts and chucks.

[0039] In summary, the aluminum alloy bending die designed in this invention features a rationally designed full-contour clamping mechanism 2. Compared to the clamping mechanisms used in traditional aluminum alloy bending dies, this full-contour clamping mechanism 2 cleverly utilizes elastic elements 24 and contour blocks 23 to evenly distribute the clamping force on the aluminum alloy profile 6, thereby reducing the deformation of the clamping area at the end of the aluminum alloy profile 6, improving clamping stability, and reducing the amount of aluminum profile used. Furthermore, the aluminum alloy bending die designed in this invention allows users to easily adjust the placement direction of the aluminum alloy profile 6, providing operators with more space for loading and unloading, thus shortening the production cycle and achieving higher production efficiency. This effectively solves the problems of high production cost, insufficient clamping stability, and poor production quality stability that exist when using existing aluminum alloy bending dies with toothed clamping blocks or slider clamping mechanisms to clamp aluminum alloys.

[0040] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An aluminum alloy stretch-draw die characterized by, The utility model relates to a full-imitation clamping mechanism for aluminum alloy profile, comprising: A base plate (1) and a full-imitation clamping mechanism (2) arranged on the base plate (1), the full-imitation clamping mechanism comprises two chucks arranged opposite to each other, the two chucks have a spacing in the horizontal direction and are used for clamping an aluminum alloy profile, wherein at least one of the chucks is provided with an imitating block (23) on the side surface close to the other chuck, and the imitating block (23) is installed on the chuck by an elastic member (24).

2. The aluminum alloy stretch-draw die of claim 1, wherein, The full-imitation clamping mechanism further comprises a first mechanical arm and a second mechanical arm, the two chucks are respectively installed on the first mechanical arm and the second mechanical arm, wherein the first mechanical arm and / or the second mechanical arm are used for driving the two chucks to approach or move away from each other, and after the two chucks clamp the aluminum alloy profile, the first mechanical arm and / or the second mechanical arm are used for applying force to make the aluminum alloy profile stretch-bend form.

3. The aluminum alloy stretch-draw die of claim 1, wherein, The elastic member (24) is a spring, one end of the elastic member (24) in the horizontal direction abuts against the imitating block (23), and the other end of the elastic member (24) in the horizontal direction abuts against the chuck.

4. The aluminum alloy stretch-draw die of claim 3, wherein, The chuck is provided with a receiving cavity (25), at least part of the imitating block (23) is arranged in the receiving cavity (25) and abuts against the elastic member (24) arranged in the receiving cavity (25), wherein the chuck is further provided with a guide member (26) and a guide hole (27), the guide hole (27) communicates with the receiving cavity (25), and the guide member (26) extends into the receiving cavity (25) from the guide hole (27) and is connected with the imitating block (23).

5. The aluminum alloy stretch-draw die of claim 1, wherein, The side surface of the chuck without the imitating block (23) close to the other chuck is provided with a sawtooth pattern (211).

6. The aluminum alloy stretch-draw die of claim 1, wherein, Further comprising an auxiliary forming mechanism, the auxiliary forming mechanism comprises a lower pressing plate assembly (3) and a cavity assembly (4), the lower pressing plate assembly (3) is used for limiting the position of the aluminum alloy profile in the vertical direction, and the cavity assembly (4) is used for limiting the stretch-bend forming radius of the aluminum alloy profile during the stretch-bend forming of the aluminum alloy profile.

7. The aluminum alloy stretch-draw die of claim 5, wherein, The lower pressing plate assembly (3) comprises a mounting bracket (31), the mounting bracket (31) is arranged on the base plate (1), and the mounting bracket (31) is provided with a guide rail (32) extending in the vertical direction, wherein the lower pressing plate assembly (3) further comprises a lower pressing plate (33), the lower pressing plate (33) is slidably arranged on the guide rail (32).

8. The aluminum alloy stretch-draw die of claim 7, wherein, The cavity assembly (4) comprises an upper die plate (41) and a lower die plate (42), the upper die plate (41) is connected with the lower pressing plate (33), and the lower die plate (42) is arranged on the mounting bracket (31), wherein the mounting bracket (31) is further provided with an adjusting bolt (43), one end of the adjusting bolt (43) abuts against the lower die plate (42) to adjust the posture of the lower die plate (42) on the mounting bracket (31).

9. The aluminum alloy stretch-draw die of claim 1, wherein, Also include cutting assembly (5), the cutting assembly (5) includes support seat (51) and is located on the support seat (51) cutting mechanism and clamping mechanism, the clamping mechanism includes two clamping blocks arranged opposite to each other, two the clamping blocks have a spacing in the horizontal direction, and two the clamping blocks are used for clamping the aluminum alloy profile;Wherein, cutting mechanism includes cutter (52), the cutter (52) is used for cutting the aluminum alloy profile clamped by two the clamping blocks under the driving of the driving part.

10. The aluminum alloy stretch-draw die of claim 9, wherein, The cutting assembly (5) further comprises a material guide groove (53) disposed on the support seat (51) and located below the spacing of the two clamping blocks in the horizontal direction.

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