Composite bending die suitable for reinforcing rib forming

Abstract

The utility model discloses a composite bending die suitable for reinforcing rib forming, which relates to the technical field of reinforcing rib forming, and comprises an upper die assembly, a lower die assembly and a lower die assembly, the upper die assembly comprises an upper die connecting block, and the upper die connecting block is connected with a bending machine and an upper die body; the lower die assembly comprises a lower die connecting block, the upper end of the lower die connecting block is connected with a lower die body, and a part to be machined is placed on the lower die body. And the positioning assembly is used for adjusting the relative position of the to-be-machined part on the lower die body. According to the composite type bending die suitable for reinforcing rib forming, the technical problems that an existing reinforcing rib forming mode is poor in positioning precision, high in requirement for the skill level of workers, large in labor intensity and poor in product consistency are solved, under driving of a bending machine, the upper die body descends to be matched with the lower die body to apply pressure to a part to be machined for multiple times, and the machining efficiency is improved. According to the device, the labor intensity of workers is effectively reduced, the consistency of products is improved, and the forming quality of the parts is improved.

Description

Technical Field

[0001] This utility model relates to the field of reinforcing rib forming technology, and in particular to a composite bending die suitable for reinforcing rib forming. Background Technology

[0002] Reinforcing ribs can be mainly divided into planar U-shaped reinforcing ribs and composite Z-shaped reinforcing ribs. They are commonly used on the first and second stage fairings of aerospace rockets, connected to the fairings by riveting. Reinforcing ribs can effectively enhance the structural strength, stability, and corrosion resistance, as well as improve the convenience and aesthetics of installation. Existing reinforcing rib forming methods use process equipment as a mold (male mold). The part is placed on the mold's positioning reference, and a female mold mates with the part. After accurate positioning, the part is manually hammered into place with the mold. To prevent cracking during the process, multiple annealing treatments are required. Based on the part's shape characteristics, the forming process flow is: CNC blanking - forming - annealing - forming - secondary annealing - secondary forming - quenching - correction and finishing.

[0003] However, manual forming of reinforcing ribs, using tools such as hammers and aluminum mallets to process parts, suffers from poor positioning accuracy, requires high worker skill levels, and is not only labor-intensive, inefficient, and inconsistent in product quality, but also results in large bending angles that cause damage when the part's root contacts the mold, and hammer marks on the part's surface leading to poor surface quality. Therefore, a composite bending die suitable for reinforcing rib forming is proposed to address these problems. Utility Model Content

[0004] The purpose of this invention is to provide a composite bending die suitable for forming reinforcing ribs, which solves the technical problems of poor positioning accuracy, high skill requirements for workers, high labor intensity, low production efficiency, and poor product consistency in manual forming of reinforcing ribs.

[0005] To achieve the above objectives, this utility model provides a composite bending die suitable for forming reinforcing ribs, comprising:

[0006] The upper die assembly includes: an upper die connecting block, the upper end of which is connected to a bending machine, and the lower end of which is connected to the upper die body;

[0007] The lower die assembly includes: a lower die connecting block, the lower end of which is connected to the bending machine, and the upper end of which is connected to the lower die body, on which the part to be processed is placed;

[0008] A positioning component is located at the left end of the lower mold body and is used to adjust the relative position of the part to be processed on the lower mold body.

[0009] Preferably, the upper end of the upper die connecting block is provided with a concave structure, and the side surface of the concave structure is provided with a first connecting hole.

[0010] Preferably, the upper die body comprises a first upper die and a second upper die, the first upper die and the second upper die are attached to each other, and the side surface of the first upper die is provided with a plurality of first bolt holes, and the side surface of the second upper die is provided with a plurality of second bolt holes.

[0011] Preferably, the side surface of the first upper die is provided with a plurality of first pin holes, and the side surface of the second upper die is provided with a plurality of second pin holes, and each first pin hole is connected to one second pin hole through a first positioning pin.

[0012] Preferably, the lower end of the lower die connecting block is provided with a convex structure, and the convex structure is connected to the bending machine through clamping.

[0013] Preferably, the lower die body comprises a first lower die and a second lower die, the first lower die and the second lower die are attached to each other, and the side surface of the first lower die is provided with a plurality of third bolt holes, and the side surface of the second lower die is provided with a plurality of fourth bolt holes.

[0014] Preferably, the side surface of the first lower die is provided with a plurality of third pin holes, and the side surface of the second lower die is provided with a plurality of fourth pin holes, and each third pin hole is connected to one fourth pin hole through a second positioning pin.

[0015] Preferably, the positioning assembly comprises a connecting plate connected to the left end surface of the lower die body, and the connecting plate is connected to a positioning baffle, and the positioning baffle is used for supporting the part to be machined.

[0016] Preferably, the side surface of the positioning baffle is provided with a through hole for penetrating the connecting plate, one side of the positioning baffle is provided with a fifth bolt hole, the fifth bolt hole is threadedly connected with a fixing bolt, the fifth bolt hole is communicated with the through hole, and one end of the fixing bolt located in the fifth bolt hole can abut against the side surface of the connecting plate.

[0017] Preferably, the upper die connecting block is in the shape of L as a whole, the bottom surface of the upper die connecting block is provided with a fifth pin hole, the top surface of the upper die body is provided with a sixth pin hole, and the fifth pin hole is connected to the sixth pin hole through a third positioning pin.

[0018] With respect to the above background technology, the composite bending die for forming the reinforcing rib provided by the present application has the following beneficial effects:

[0019] (1) The utility model discloses a upper die connecting block is fixed with upper die body on the bending machine, through the lower die connecting block with lower die body is fixed on the bending machine, and the part to be processed is placed on the lower die body, and under the drive of the bending machine, the upper die body is lowered and cooperates with the lower die body to press the part to be processed multiple times, until the part is shaped to the process equipment. Compared with the manual shaping mode, the mode of using the die to cooperate with the mechanical processing can prevent stress concentration of the part in the forming process, make the stress of the part more uniform, accurately control the bending angle of the part, thereby prevent the top injury caused by the contact of the part root and the die, improve the quality of the part forming. At the same time, the part surface is integrally formed, and the local mark problem does not appear, the consistency of the product is improved, and the quality of the part forming is further improved. Moreover, the labor intensity of workers can be effectively reduced, and the production efficiency of the part is effectively improved.

[0020] (2) The utility model discloses through the relative position of the part to be processed on the lower die body is directly adjusted and corrected by the positioning assembly, reduces the time of part positioning, improves the positioning accuracy of the part to be processed on the lower die body, thereby reduces the requirement to the skill level of workers, and can improve the quality of the part forming. DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and obviously, the drawings in the following description are only the embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative labor.

[0022] Figure 1 The three-dimensional structure diagram of the composite bending die provided by the embodiments of the utility model is shown in the figure.

[0023] Figure 2 The three-dimensional structure diagram of the upper die body provided by the embodiments of the utility model is shown in the figure.

[0024] Figure 3 The three-dimensional structure diagram of the upper die connecting block provided by the embodiments of the utility model is shown in the figure.

[0025] Figure 4 The three-dimensional structure diagram of the lower die assembly provided by the embodiments of the utility model is shown in the figure.

[0026] Figure 5 The three-dimensional structure diagram of the positioning assembly provided by the embodiments of the utility model is shown in the figure.

[0027] Specific, 110 - the upper die body; 111 - the first upper die; 112 - the second upper die; 120 - the upper die connecting block; 121 - concave structure; 122 - buckle; 123 - the sixth pin hole; 124 - the sixth bolt hole; 125 - limit groove; 130 - the first bolt hole; 140 - the first pin hole;

[0028] 200 - the lower die assembly; 210 - the lower die body; 211 - the first lower die; 212 - the second lower die; 220 - the lower die connecting block; 221 - convex structure; 230 - the third bolt hole; 240 - the third pin hole;

[0029] 300 - the positioning assembly; 310 - the connecting plate; 320 - the positioning baffle; 330 - the fixing bolt. DETAILED DESCRIPTION

[0030] The technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0031] In order for those skilled in the art to better understand the technical scheme of the present application, the present application will be further described in detail below in conjunction with the drawings and specific embodiments.

[0032] As shown in Figure 1 , Figure 2 and Figure 4 , in order to achieve the above-mentioned purpose, the present application provides a composite bending die suitable for reinforcing rib forming, comprising: an upper die assembly and a lower die assembly 200.

[0033] Among them, the upper die assembly includes: the upper die connecting block 120, the upper end of the upper die connecting block 120 is connected to the bending machine (not shown in the figure), and the lower end of the upper die connecting block 120 is connected to the upper die body 110. At the same time, the lower die assembly 200 includes: the lower die connecting block 220, the lower end of the lower die connecting block 220 is connected to the bending machine, the upper end of the lower die connecting block 220 is connected to the lower die body 210, specifically, the lower die body 210 places the parts to be processed, under the driving of the bending machine, the lower die body 210 applies pressure to the parts to be processed, the lower die body 210 holds the parts to be processed, the upper die body 110 is lowered and cooperates with the lower die body 210 to press the parts to be processed multiple times, until the parts are shaped to fit the process equipment, the parts are integrally formed on the surface, effectively reducing the labor intensity of workers and improving the production efficiency of parts.

[0034] It should be noted that the upper die body 110 and the lower die body 210 are made of one of the two materials of Cr12MoV and 45 steel after quenching and tempering, preferably, the upper die body 110 and the lower die body 210 are made of Cr12MoV material, which has higher strength, toughness and wear resistance, longer service life, and can be applied to more kinds of part forming, reducing the use cost while improving the machining performance of the overall composite bending die.

[0035] In addition, the left end of the lower die body 210 is provided with a positioning assembly 300, which directly adjusts and corrects the relative position of the part to be processed on the lower die body 210, improves the positioning accuracy of the part to be processed on the lower die body 210, thereby reducing the requirement for the skill level of workers, and at the same time can improve the quality of part forming.

[0036] In use, the upper end of the upper die connecting block 120 is connected to the action mechanism (not shown in the figure) of the bending machine, the lower end of the upper die connecting block 120 is fixedly connected to the upper die body 110, the lower end of the lower die connecting block 220 is fixed to the fixed mechanism (not shown in the figure) of the bending machine, the upper end of the lower die connecting block 220 is connected to the lower die body 210, the part to be processed is placed on the lower die body 210, the positioning assembly 300 adjusts and corrects the relative position of the part to be processed on the lower die body 210, the action mechanism of the bending machine drives the upper die body 110 to descend and hold the part to be processed until the part to be processed is in contact with the top surface of the lower die body 210, and the part to be processed is pressed repeatedly for multiple times until the part is formed to be in contact with the process equipment. By using the mold combined with mechanical processing, stress concentration of the part during forming can be prevented, thereby making the force of the part more uniform, accurately controlling the bending angle of the part, preventing the root of the part from being in contact with the mold to cause top injury, and improving the quality of part forming.

[0037] As shown in Figure 3 In an embodiment of the utility model, the upper end of the upper die connecting block 120 is provided with a concave structure 121, the first connecting hole is arranged on the side surface of the concave structure 121, the third connecting hole is arranged on the action mechanism of the bending machine, the buckle 122 passes through the first connecting hole and the third connecting hole at the same time, and the concave structure 121 and the action mechanism of the bending machine are fixedly connected. In addition, the two side surfaces of the concave structure 121 are symmetrically provided with limiting grooves 125, the limiting grooves 125 can be matched with the action mechanism of the bending machine, the upper die connecting block 120 is limited, the stability of the upper die connecting block 120 when moving with the action mechanism of the bending machine is improved, thereby ensuring that the upper die body 110 can accurately press the part to be processed.

[0038] In one embodiment of the utility model, the upper die body 110 comprises: a first upper die 111 and a second upper die 112, the first upper die 111 and the second upper die 112 are combined to form the upper die body 110, by combining the first upper die 111 and the second upper die 112, it is convenient to replace the corresponding first upper die 111 or second upper die 112 according to the use condition in the later period, the die replacement cost is reduced, and the first upper die 111 and the second upper die 112 are replaced flexibly according to the shape of part forming, the range of the overall composite bending die is improved, and the practicality is better.

[0039] In addition, the side surface of the first upper die 111 is provided with a plurality of first bolt holes 130, and the side surface of the second upper die 112 is provided with a plurality of second bolt holes, specifically, two first bolt holes 130 are symmetrically arranged at the top of the side surface of the first upper die 111, one first bolt hole 130 is arranged at the bottom of the side surface of the first upper die 111, two second bolt holes are symmetrically arranged at the top of the side surface of the second upper die 112, and two first bolt holes 130 are arranged at the bottom of the side surface of the second upper die 112, a second bolt hole is threadedly connected with a first bolt rod passing through each first bolt hole 130 respectively, and the first upper die 111 and the second upper die 112 are stably connected together.

[0040] Preferably, the side surface of the first upper die 111 is provided with a plurality of first pin holes 140, and the side surface of the second upper die 112 is provided with a plurality of second pin holes, specifically, two first pin holes 140 are symmetrically arranged on the first upper die 111, and two second pin holes are symmetrically arranged on the second upper die 112, each first pin hole 140 is connected with a second pin hole through a first positioning pin respectively, when assembling the first upper die 111 and the second upper die 112, the assembly precision of the overall upper die body 110 can be effectively improved, and then the qualified rate after part forming is improved.

[0041] In one embodiment of the utility model, the lower end of the lower die connecting block 220 is provided with a convex structure 221, it needs to be explained that the top surface of the fixing structure is provided with a lower groove opening (not shown in the figure), the convex structure 221 is connected with the lower groove opening in a matched mode, the convex structure 221 is stably connected with the fixing mechanism on the bending machine, the lower die connecting block 220 can be limited, the stability of the lower die connecting block 220 when being pressed down is improved, and the cooperation of the lower die body 210 and the upper die body 110 on the processed part is further ensured.

[0042] In one embodiment of this utility model, the lower die body 210 includes: a first lower die 211 and a second lower die 212. The first lower die 211 and the second lower die 212 are fitted together to form the lower die body 210. By assembling and installing the first upper die 111 and the second upper die 112, it is convenient to replace the corresponding first lower die 211 or the second lower die 212 according to the usage, which further reduces the die replacement cost. Moreover, the first lower die 211 and the second lower die 212 can be flexibly adjusted and replaced according to the shape of the part being formed, which further improves the range of the overall composite bending die.

[0043] In addition, the side of the first lower mold 211 is provided with several third bolt holes 230, and the side of the second lower mold 212 is provided with several fourth bolt holes. Specifically, the side of the first lower mold 211 is evenly provided with five third bolt holes 230, and the side of the second lower mold 212 is evenly provided with five fourth bolt holes. The second bolt rod passes through each third bolt hole 230 and is threaded to a fourth bolt hole, so as to stably connect the first lower mold 211 and the second lower mold 212 together.

[0044] Preferably, the side of the first lower mold 211 is provided with a plurality of third pin holes 240, and the side of the second lower mold 212 is provided with a plurality of fourth pin holes. Specifically, two third pin holes 240 are symmetrically arranged on the first lower mold 211, and two second pin holes are symmetrically arranged on the second lower mold 212. Each third pin hole 240 is connected to a fourth pin hole by a second positioning pin. When assembling the first lower mold 211 and the second lower mold 212, the assembly accuracy of the overall lower mold body 210 can be effectively improved, and the pass rate of the formed parts can be further improved.

[0045] like Figure 5 As shown, in one embodiment of this utility model, the positioning component 300 includes: a connecting plate 310 disposed on the left end face of the lower mold body 210. The connecting plate 310 is fixed to the left end face of the lower mold body 210 by welding or bolt connection. The length direction of the connecting plate 310 is perpendicular to the left end face of the lower mold body 210. The connecting plate 310 is slidably connected to a positioning baffle 320. The right end face of the positioning baffle 320 abuts against the left end face of the part to be processed. By adjusting the relative position of the positioning baffle 320 on the connecting plate 310, the relative position of the part to be processed on the lower mold body 210 is adjusted, thereby ensuring the positioning accuracy of the part to be processed on the lower mold body 210. Each position of the part to be processed can be precisely pressed, improving the quality of part forming.

[0046] It should be noted that the side of the positioning baffle 320 is provided with a through hole for penetrating the connecting plate 310, the through hole is in sliding fit with the connecting plate 310, one side of the positioning baffle 320 is provided with a fifth bolt hole, the fifth bolt hole is in threaded connection with a fixing bolt 330, and the fifth bolt hole is in communication with the through hole, when it is needed to adjust the relative position of the part to be processed on the lower die body 210, the fixing bolt 330 is forwardly screwed until the end of the fixing bolt 330 no longer abuts against the positioning baffle 320, at this time, the positioning baffle 320 can freely slide on the connecting plate 310, so that the relative position of the part to be processed on the lower die body 210 is adjusted, when the relative position of the part to be processed on the lower die body 210 is fixed, the fixing bolt 330 is reversely screwed until the end of the fixing bolt 330 abuts against the side of the connecting plate 310, the positioning baffle 320 is stably positioned, and it is ensured that the relative position of the part to be processed on the lower die body 210 remains stable and unchanged when the part to be processed is deformed by pressing.

[0047] It should be noted that according to the shape of the part to be processed, the positioning assembly 300 can be added to each side of the lower die body 210, so as to stably position the part to be processed on the lower die body 210, and effectively prevent the part to be processed from shifting and deviating during the deformation by pressing. In addition, the positioning assembly 300 can be replaced by a screw rod positioning mode to position the part to be processed, so as to realize the adjustment and correction of the part to be processed.

[0048] In an embodiment of the utility model, the upper die connecting block 120 is L-shaped as a whole, the bottom surface of the upper die connecting block 120 is provided with a fifth pin hole, the top surface of the upper die body 110 is provided with a sixth pin hole 123, specifically, the sixth pin hole 123 is arranged on the top surface of the first upper die 111, the fifth pin hole is connected with the sixth pin hole 123 through a third positioning pin, when the upper die body 110 is installed on the bottom surface of the upper die connecting block 120, the assembly precision of the whole upper die body 110 can be improved, and the qualified rate after part forming is further improved. It should be noted that the bottom surface of the upper die connecting block 120 is provided with a sixth bolt hole 124, the top surface of the upper die body 110 is provided with a seventh bolt hole, the third bolt rod is in threaded connection with the seventh bolt hole through the sixth bolt hole 124, and the upper die body 110 is fixed on the bottom surface of the upper die connecting block 120. Of course, the shape of the upper die connecting block 120 can also be other shapes, and reasonable design should be made according to the stress condition of the upper die body 110, and the purpose is to ensure that the upper die body 110 is stably stressed.

[0049] The utility model discloses when using, the upper end part of upper die connecting block 120 is connected the action mechanism of bending machine, and the lower end part of upper die connecting block 120 is fixedly connected upper die body 110, the lower end part of lower die connecting block 220 is fixed on the fixed mechanism of bending machine, and the upper end part of lower die connecting block 220 is connected lower die body 210, and the part to be processed is placed on lower die body 210, and in the initial state, the end of fixed bolt 330 does not contact with the side of connecting plate 310, and sliding positioning baffle 320 is adjusted and corrected the relative position of the part to be processed on lower die body 210, when the relative position of the part to be processed on lower die body 210 is fixed, reverse screwing fixed bolt 330 until the end of fixed bolt 330 holds the side of connecting plate 310, and positioning baffle 320 is stably positioned, and the relative position of the part to be processed on lower die body 210 is limited, and the action mechanism of bending machine drives upper die body 110 to descend and holds the part to be processed until the part to be processed and the top surface of lower die body 210 are attached, and the part to be processed is pressed repeatedly for many times, and until the part is shaped to be attached with process equipment.

[0050] In summary, under the driving of the bending machine, upper die body 110 is lowered and cooperates with lower die body 210 to press the part to be processed for many times. By using the mode of die cooperation and mechanical processing, stress concentration of the part during shaping is prevented, the force on the part is more uniform, the bending angle of the part is accurately controlled, the part surface is integrally formed, the problem of local marks does not occur, the consistency of the product is effectively improved, and the quality of part shaping is improved.

[0051] It should be noted that in the present specification, relational terms such as first and second are used solely to distinguish one entity from another without necessarily requiring or implying any actual relationship or order between or among such entities.

[0052] The principles and implementation modes of the utility model are described by using specific examples in the present document, and the above description of the examples is only used to help understand the method and core idea of the utility model. It should be pointed out that for ordinary skilled persons in the technical field, without departing from the principles of the utility model, the utility model can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the utility model.

Claims

1. A compound bending die suitable for forming a reinforcing bar, characterized by comprising: The utility model relates to a bending machine, including: An upper die assembly includes an upper die connecting block, the upper end of the upper die connecting block is connected to a bending machine, and the lower end of the upper die connecting block is connected to an upper die body; A lower die assembly includes a lower die connecting block, the lower end of the lower die connecting block is connected to the bending machine, the upper end of the lower die connecting block is connected to a lower die body, and the lower die body is used for placing a part to be processed; A positioning assembly is arranged at the left end of the lower die body and is used for adjusting the relative position of the part to be processed on the lower die body.

2. The compound bending die for forming a reinforcing bar according to claim 1, wherein The upper end of the upper die connecting block is provided with a concave structure, the side surface of the concave structure is provided with a first connecting hole, and the first connecting hole is connected to the bending machine through buckling.

3. The compound bending die for forming a reinforcing bar according to claim 1, wherein The upper die body includes a first upper die and a second upper die, the first upper die and the second upper die are attached to each other, the side surface of the first upper die is provided with a plurality of first bolt holes, and the side surface of the second upper die is provided with a plurality of second bolt holes.

4. The compound bending die for forming a reinforcing bar according to claim 3, wherein The side surface of the first upper die is provided with a plurality of first pin holes, the side surface of the second upper die is provided with a plurality of second pin holes, and each first pin hole is connected to one second pin hole through a first positioning pin.

5. The compound bending die for forming a reinforcing bar according to claim 1, wherein The lower end of the lower die connecting block is provided with a convex structure, and the convex structure is connected to the bending machine through clamping.

6. The compound bending die for forming a reinforcing bar according to claim 5, wherein The lower die body includes a first lower die and a second lower die, the first lower die and the second lower die are attached to each other, the side surface of the first lower die is provided with a plurality of third bolt holes, and the side surface of the second lower die is provided with a plurality of fourth bolt holes.

7. The compound bending die for forming a reinforcing bar according to claim 6, wherein The side surface of the first lower die is provided with a plurality of third pin holes, the side surface of the second lower die is provided with a plurality of fourth pin holes, and each third pin hole is connected to one fourth pin hole through a second positioning pin.

8. The compound bending die for forming a reinforcing bar according to any one of claims 1 to 7, wherein The positioning assembly includes a connecting plate connected to the left end surface of the lower die body, the connecting plate is slidably connected to a positioning baffle, and the positioning baffle is used for supporting the part to be processed.

9. The compound bending die for forming a reinforcing rib according to claim 8, wherein The side surface of the positioning baffle is provided with a through hole used for penetrating the connecting plate, one side of the positioning baffle is provided with a fifth bolt hole, the fifth bolt hole is threadedly connected to a fixing bolt, the fifth bolt hole is communicated with the through hole, and one end of the fixing bolt located in the fifth bolt hole can abut against the side surface of the connecting plate.

10. The compound bending die for forming a reinforcing rib according to claim 2, wherein The upper die connecting block is in the shape of L as a whole, the bottom surface of the upper die connecting block is provided with a fifth pin hole, the top surface of the upper die body is provided with a sixth pin hole, and the fifth pin hole is connected to the sixth pin hole through a third positioning pin.

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