Stamping device for aviation plate machining

Abstract

The utility model relates to a stamping device for aviation plate processing, which comprises a supporting bottom plate and a suspended mounting frame mounted on the supporting bottom plate, a lower die body is supported on the top surface of the supporting bottom plate in a suspended manner through a stamping lifting mechanism, and an upper die body is arranged on a supporting top plate of the suspended mounting frame. The bottom of the upper die body is further provided with a negative pressure positioning assembly capable of conducting adsorption positioning and pushing demolding on a stamped plate body. The negative pressure positioning assembly comprises an elastic jacking mechanism and a negative pressure adsorption mechanism, wherein the elastic jacking mechanism elastically extends out of the center of the bottom of the upper die body to jack and push a plate formed through stamping, and the negative pressure adsorption mechanism is inserted into the elastic jacking mechanism to adsorb and position the plate. An auxiliary positioning assembly is further arranged on the lower die body. According to the utility model, a plate can be effectively positioned in a negative pressure adsorption manner, so that the accuracy of a stamping deformation point position and the stamping quality are ensured, and the plate can be pushed to complete demolding in the mold splitting process.

Description

TECHNICAL FIELD

[0001] The utility model relates to aviation plate stamping equipment technical field especially relates to a stamping device for aviation plate processing. BACKGROUND

[0002] Aluminum alloy plate and titanium alloy plate and other alloy materials are widely used in aviation and aerospace industry due to high heat resistance and corrosion resistance and other excellent performance, to process the involved in the aircraft bulkhead and skin and other plate structure parts. In the production of non-flat plate, usually need to be cut through stamping equipment to the plate forming treatment, so that the specific area of the plate stretching, bending and other deformation, so as to form a plate structure parts with curved surface and other bending surface profile. In the plate stamping forming processing, need to use stamping die, through the die with a specific stamping profile cavity to the corresponding aviation plate stamping. At present, the traditional stamping die includes base, lower die, upper die and changes the distance between lower die and upper die and makes lower die and upper die cooperate and controllably constructs stamping die cavity, so that the operator or material moving structure periodically places the plate between lower die and upper die to realize the stamping of the plate, and after completing the stamping, the operator or material moving structure takes away the stamping plate from the separated lower die and upper die, then, repeats the foregoing operation to realize continuous processing of the stamping die.

[0003] However, the existing die body does not have positioning structure, the plate cannot be effectively limited to deformation point during stamping deformation, and the actual deformation point is likely to change due to deviation during deformation, so that the size of each region of the stamped plate deviates from the standard preset size, affecting the stamping quality and yield. In addition, the existing stamping die does not have demolding function, and the plate cannot be effectively separated from the die cavity after completing the stamping, so that the operator or material moving structure needs to perform demolding operation before transferring the completed stamping plate, which is time-consuming and laborious, and reduces the overall efficiency during batch processing. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a stamping device for aviation plate processing, which can effectively position the plate through negative pressure adsorption, ensure the accuracy of stamping deformation point and stamping quality, and push the plate to complete demolding during the demolding process after stamping, so as to facilitate the transfer of subsequent plates, to solve the problems that the existing die does not have positioning ability, cannot guarantee the accuracy of stamping deformation process, is easy to deviate and cause misplacement deformation, affects the stamping quality and yield, and the existing die cannot automatically separate the die body and realize demolding of the workpiece, so that additional demolding operation is needed before subsequent material taking operation, reducing the overall processing efficiency.

[0005] The technical solution adopted by this utility model is as follows: a stamping device for processing aerospace sheet metal, including a supporting base plate and a suspended mounting frame installed on the supporting base plate. A lower die body is suspended and supported on the top surface of the supporting base plate by a stamping lifting mechanism. An upper die body is provided on the supporting top plate of the suspended mounting frame. A negative pressure positioning component capable of adsorbing, positioning, and pushing the stamped sheet metal to release it is also provided at the bottom of the upper die body. The negative pressure positioning component includes an elastic lifting mechanism that elastically extends from the bottom center of the upper die body to push the stamped sheet metal and a negative pressure adsorption mechanism inserted inside the elastic lifting mechanism to adsorb and position the sheet metal. An auxiliary positioning component is also provided on the lower die body.

[0006] According to a preferred embodiment, the elastic lifting mechanism includes a mounting sleeve, a support ring plate, a central guide tube, an insertion base, and elastic limiting members. The mounting sleeve is embedded in the bottom surface of the upper mold body, and the insertion front end of the mounting sleeve is connected to the support ring plate. The central guide tube is movably inserted into the support ring plate, and the lower axial end of the central guide tube is connected to the insertion base. Multiple elastic limiting members are arranged circumferentially on the insertion base.

[0007] According to a preferred embodiment, the suction cup of the negative pressure adsorption mechanism is embedded in the bottom surface of the insertion base, and the suction cup is also connected to an air guide tube passing through the insertion base and the central guide tube. The upper axial end of the air guide tube away from the suction cup is also connected to a metal bellows, and the upper axial end of the metal bellows is connected to a linkage adjustment module. The linkage adjustment module is embedded in a limiting mounting plate, and the limiting mounting plate is installed in the upper mold body. A vacuum pump communicating with the linkage adjustment module is also provided on the top surface of the limiting mounting plate.

[0008] According to a preferred embodiment, the linkage adjustment module includes a conductive pipe shell communicating with the metal bellows and the vacuum pump, a sealing ring plate disposed in the conductive pipe shell, a sealing plate that cooperates with the sealing ring plate to cut off the cavity of the conductive pipe shell, a linkage rod connected to the sealing plate, and a cross support frame for positioning the working position of the linkage rod, wherein the cross support frame is installed in the cavity of the air guide pipe.

[0009] According to a preferred embodiment, the upper mold body includes an upper mold base and an upper mold boss, wherein the upper mold base is centrally mounted on the support top plate, and the upper mold boss is installed on the bottom surface of the upper mold base.

[0010] According to a preferred embodiment, a lower mold groove is provided on the top surface of the lower mold body to define the contour cavity of the bending shape of the plate, which is adapted to the upper mold boss, and a positioning groove is provided to communicate with the lower mold groove and to limit the placement of the plate to be processed.

[0011] According to a preferred embodiment, the auxiliary positioning assembly includes a telescopic rod inserted into the bottom surface of the cavity of the lower mold groove, an elastic telescopic member sleeved on the telescopic rod, and an auxiliary positioning plate installed at the top of the telescopic rod.

[0012] According to a preferred embodiment, the supporting top plate of the suspended mounting frame is suspended above the supporting bottom plate by the supporting frame.

[0013] According to a preferred embodiment, the stamping lifting mechanism includes a primary hydraulic lifting column, a connecting middle plate, and a secondary hydraulic lifting column. Multiple primary hydraulic lifting columns are arrayed and supported on the supporting base plate, and the top of each primary hydraulic lifting column is connected to the connecting middle plate. The secondary hydraulic lifting columns, which are connected to the bottom surface of the lower mold body, are arrayed and supported on the connecting middle plate.

[0014] The beneficial effects of this utility model are:

[0015] The negative pressure positioning component provided in this application can position the sheet metal before stamping using negative pressure adsorption, ensuring the deformation accuracy of the sheet metal during the stamping process, avoiding displacement when the sheet metal deforms and bends, and ensuring the accuracy of the bending position. This ensures that the dimensions of each area of ​​the stamped sheet metal are approximately equal to the standard preset dimensions, thus guaranteeing stamping quality and yield. Furthermore, after stamping, the negative pressure positioning component can also elastically reset synchronously with the mold parting movement, effectively promoting the separation of the formed sheet metal from the upper mold body. This reduces additional interventional demolding operations, shortens the continuous stamping cycle, and improves overall stamping efficiency. The auxiliary positioning component 7 provided in this application can cooperate with the negative pressure positioning component to achieve alignment and clamping within a certain range, improving positioning stability. The auxiliary positioning component can also simultaneously achieve demolding between the sheet metal and the lower mold body, increasing the disassembly speed after stamping. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a preferred stamping device for processing aerospace sheet metal, as proposed in this utility model.

[0017] Figure 2 This is a schematic diagram of the structure of a preferred stamping device for processing aerospace sheet metal in the present invention when pre-clamping and positioning the sheet metal.

[0018] Figure 3This is a schematic diagram of the structure of a preferred stamping device for processing aerospace sheet metal according to this utility model during stamping.

[0019] Figure 4 This is a schematic diagram of the negative pressure positioning component of a preferred stamping device for processing aerospace sheet metal, as proposed in this utility model.

[0020] Figure 5 This is a schematic diagram of the negative pressure positioning component of a preferred stamping device for aerospace sheet metal processing proposed in this utility model during negative pressure adsorption.

[0021] List of reference numerals

[0022] 1: Support base plate; 2: Suspended mounting frame; 3: Stamping lifting mechanism; 4: Lower mold body; 5: Upper mold body; 6: Negative pressure positioning component; 7: Auxiliary positioning component; 21: Support frame; 22: Support top plate; 31: Primary hydraulic lifting column; 32: Connecting middle plate; 33: Secondary hydraulic lifting column; 41: Lower mold groove; 42: Positioning groove; 51: Upper mold base; 52: Upper mold boss; 61: Elastic lifting mechanism; 62: Negative pressure adsorption mechanism; 611: Mounting seat sleeve; 612: 613: Support ring plate; 614: Centered guide tube; 615: Insertion base; 621: Elastic limiting component; 622: Suction cup; 623: Air duct; 624: Corrugated metal pipe; 625: Linkage adjustment module; 626: Vacuum pump; 6241: Connecting tube shell; 6242: Sealing ring plate; 6243: Sealing platform; 6244: Linkage rod; 6245: Cross support frame; 71: Telescopic rod; 72: Elastic telescopic component; 73: Auxiliary positioning plate. Detailed Implementation

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] The technical solutions provided by this utility model will be described in detail below with reference to the accompanying drawings and through embodiments. It should be noted that the descriptions of these embodiments are for the purpose of helping to understand this utility model, but do not constitute a limitation thereof. In some examples, because some implementation methods belong to existing or conventional technology, they are not described or are not described in detail. The serial numbers assigned to components in this document, such as "first," "second," etc., are only used to distinguish the described objects and do not have any sequential or technical meaning.

[0025] The following is a detailed explanation with reference to the accompanying drawings.

[0026] Example 1

[0027] This application provides a stamping device for processing aerospace sheet metal, which includes a support base plate 1, a suspended mounting frame 2, a stamping lifting mechanism 3, a lower die body 4, an upper die body 5, a negative pressure positioning component 6, and an auxiliary positioning component 7.

[0028] according to Figures 1-5 In one specific embodiment shown, the support base plate 1 provides a raised mounting surface to facilitate the coplanar arrangement of multiple components. A suspended mounting frame 2 is mounted on the support base plate 1. A lower mold body 4 is suspended on the top surface of the support base plate 1 via a stamping lifting mechanism 3. An upper mold body 5 is mounted on the support top plate 22 of the suspended mounting frame 2. A negative pressure positioning component 6 is also provided at the bottom of the upper mold body 5, capable of adsorbing, positioning, and pushing the stamped sheet metal for demolding. An auxiliary positioning component 7 is also provided on the lower mold body 4. The negative pressure positioning component 6 provided in this application can position the sheet metal before stamping by negative pressure adsorption, ensuring the deformation accuracy of the sheet metal during stamping, avoiding displacement when the sheet metal deforms and bends, ensuring the accuracy of the bending position, and ensuring that the dimensions of each area of ​​the stamped sheet metal are approximately equal to the standard preset dimensions, thus guaranteeing stamping quality and yield. Furthermore, the negative pressure positioning component 6 can also elastically reset synchronously with the mold parting movement after stamping, effectively pushing the formed sheet metal to separate from the upper mold body 5, reducing additional interventional demolding operations, shortening the continuous stamping cycle, and improving the overall stamping efficiency. The auxiliary positioning component 7 provided in this application can cooperate with the negative pressure positioning component 6 to achieve alignment and clamping within a certain range, thereby improving positioning stability. The auxiliary positioning component 7 can also simultaneously achieve demolding between the sheet metal and the lower mold body 4, increasing the disassembly speed after stamping.

[0029] Preferably, the top support plate 22 of the suspended mounting frame 2 is suspended above the bottom support plate 1 via the support frame 21. The support frame 21 provided in this application is installed on the top surface of the bottom support plate 1 by means of welding, corner bolt connection, etc., to construct a mounting frame, so that the top support plate 22 can be fixed to the top of the support frame 21 by welding, bolt connection, etc., thereby providing a stable suspended plate surface for the upper mold body 5.

[0030] Preferably, the stamping lifting mechanism 3 includes a primary hydraulic lifting column 31, a connecting middle plate 32, and a secondary hydraulic lifting column 33. More preferably, multiple primary hydraulic lifting columns 31 are arrayed and supported on the supporting base plate 1, and the top of the primary hydraulic lifting columns 31 is connected to the connecting middle plate 32. Preferably, secondary hydraulic lifting columns 33 connected to the bottom surface of the lower mold body 4 are arrayed and supported on the connecting middle plate 32. Specifically, the stamping pressing process of this application includes two-stage lifting adjustment. When the sheet metal is placed in the positioning groove 42, the first-stage hydraulic lifting column 31 drives the lower mold body 4 to move upward, so that the auxiliary positioning component 7 and the negative pressure positioning component 6 are effectively attached to the bottom and top surfaces of the sheet metal, forcing the negative pressure positioning component 6 to retract effectively, thereby forming a closed negative pressure cavity, thus effectively adsorbing the sheet metal onto the negative pressure adsorption mechanism 62 for positioning. Then, the second-stage hydraulic lifting column 33 extends and pushes the lower mold body 4 to move upward further, so that the lower mold body 4 and the lower mold body 5 cooperate with each other to realize the forming stamping of the sheet metal. During this process, the auxiliary positioning component 7 gradually retracts into the interior of the lower mold body 4. After the stamping process is completed, the secondary hydraulic lifting column 33 first shortens, thereby forcing the sheet metal to gradually separate from the lower mold body 4 and the upper mold body 5 through the reset push of the elastic element by the negative pressure positioning component 6 and the auxiliary positioning component 7. This allows the workpiece to be demolded simultaneously during the mold separation process. The primary hydraulic lifting column 31 can drive the lower mold body 4 to descend further, creating a sufficiently large height difference between the lower mold body 4 and the upper mold body 5, facilitating the removal of the formed sheet metal from the gap between them. Preferably, the primary hydraulic lifting column 31 can be a CY-PRV-50A type high-thrust electro-hydraulic telescopic rod capable of telescopic locking and high-precision positioning; the secondary hydraulic lifting column 33 can be a CY-PRV-50B type high-thrust electro-hydraulic telescopic rod capable of telescopic locking and high-precision positioning. The primary hydraulic lifting column 31 and the secondary hydraulic lifting column 33 provided in this application can move in stages, effectively achieving the positioning and stamping of the sheet metal, thereby helping to improve the accuracy and stability of the stamping positioning.

[0031] Preferably, the top surface of the lower die body 4 is provided with a lower die groove 41 that matches the upper die boss 52 and defines the contour cavity of the bent shape of the sheet metal, and a positioning groove 42 that communicates with the lower die groove 41 and limits the placement of the sheet metal to be processed. Preferably, the lower die body 4 is detachably connected to the top of the secondary hydraulic lifting column 33 via a flange structure, so that the lower die body 4 can be replaced as needed to select molds with different specifications of lower die groove 41 and positioning groove 42, thereby matching the upper die body 5 to perform stamping processing of sheet metal of different specifications and sizes.

[0032] Preferably, the upper mold body 5 includes an upper mold base 51 and an upper mold boss 52. Preferably, the upper mold base 51 is centrally mounted on the supporting top plate 22. More preferably, the upper mold boss 52 is mounted on the bottom surface of the upper mold base 51. Preferably, a first mounting cavity for accommodating the elastic lifting mechanism 61 is formed in the upper mold boss 52. Preferably, a second mounting cavity communicating with the first mounting cavity and accommodating part of the negative pressure adsorption mechanism 62 is formed in the upper mold base 51. Preferably, the upper mold body 5 is detachably mounted on the supporting top plate 22, so that the lower mold body 4 can be replaced as needed to select the upper mold boss 52 required for stamping different curved sheet metals, thereby facilitating the stamping process of different sheet metals.

[0033] Preferably, the negative pressure positioning component 6 includes an elastic lifting mechanism 61 that elastically extends from the bottom center of the upper mold body 5 to push the stamped plate, and a negative pressure adsorption mechanism 62 inserted inside the elastic lifting mechanism 61 to adsorb and position the plate. Preferably, the negative pressure adsorption mechanism 62 changes its working state in a linked manner according to the posture change of the elastic lifting mechanism 61, that is, the negative pressure adsorption mechanism 62 can synchronously cut off or open the negative pressure pipeline it constructs according to the posture change of the extension or retraction of the elastic lifting mechanism 61. The elastic lifting mechanism 61 provided in this application can effectively press the negative pressure adsorption mechanism 62 against the surface of the plate, so that the plate can be formed into a closed negative pressure cavity by the negative pressure adsorption mechanism 62, so that the negative pressure adsorption mechanism 62 can effectively adsorb and position the plate under negative pressure, thereby ensuring the stability of the plate during the stamping deformation process, avoiding the plate from shifting during the deformation process, and thus ensuring the accuracy and quality of the deformation. Furthermore, during mold separation, the elastic lifting mechanism 61 can reset and extend, thereby forcing the sheet metal to effectively separate from the upper mold body 5. Simultaneously, it can cut off the negative pressure pipeline of the negative pressure adsorption mechanism 62, causing the adsorption strength of the negative pressure adsorption mechanism 62 on the sheet metal to gradually decrease, facilitating the separation of the sheet metal from the negative pressure adsorption mechanism 62. The negative pressure adsorption mechanism 62 provided in this application can automatically perform negative pressure adsorption positioning according to changes in the work position, reducing the intervention of the control system, greatly reducing the need for intelligent sensing and control modules, lowering production costs and operational complexity, simplifying the overall structure, and achieving linkage between the working state of the negative pressure adsorption mechanism 62 and the working posture of the elastic lifting mechanism 61.

[0034] Preferably, the elastic lifting mechanism 61 includes a mounting sleeve 611, a support ring plate 612, a central guide tube 613, an insertion base 614, and an elastic limiting member 615. Preferably, the mounting sleeve 611 is fitted onto the bottom surface of the upper mold body 5. Specifically, the mounting sleeve 611 is fitted into the upper mold boss 52 in a manner flush with the lower surface of the upper mold boss 52. Preferably, the insertion front end of the mounting sleeve 611 is connected to the support ring plate 612. Preferably, the central guide tube 613 is movably inserted into the support ring plate 612. Specifically, the cross-section of the central guide tube 613 matches the inner diameter of the support ring plate 612, thereby effectively limiting the movement direction of the central guide tube 613 by the support ring plate 612. Preferably, the lower axial end of the central guide tube 613 is connected to an insertion base 614 whose cross-section matches the inner cavity cross-section of the mounting sleeve 611, thereby effectively limiting the movement direction of the insertion base 614. Preferably, multiple elastic limiting members 615 are arranged circumferentially at intervals on the top annular surface of the insertion base 614 that is not obstructed by the central guide tube 613. More preferably, the upper axial end of the elastic limiting member 615 abuts against the annular surface of the support ring plate 612 that is not obstructed by the mounting sleeve 611, thereby limiting the initial working position of the insertion base 614 extending downward out of the mounting sleeve 611. Preferably, the mounting sleeve 611 is installed from the lower end of the upper mold body 5, and its outer side is provided with an embedded flange ring plate structure for easy connection. Preferably, the support ring plate 612 is inserted from the upper end of the upper mold body 5 and connected to the mounting sleeve 611. Specifically, the support ring plate 612 is connected to the top annular surface of the mounting sleeve 611 via screws or other structures. More preferably, the support ring plate 612 may have an elastic limiting member 615 pre-welded to its lower plate surface, and the spring or other structural components represented by the elastic limiting member 615 are also pre-connected to the insertion base 614 via welding or other methods before the support ring plate 612 is installed. Preferably, the central guide tube 613 is also pre-connected to the insertion base 614 via welding or other methods to form an integral structural component. Specifically, the spring represented by the elastic limiting member 615 can limit the initial posture of the insertion base 614 as it elastically extends out of the mounting sleeve 611, thereby ensuring that the suction cup 621 on the insertion base 614 can effectively seal against the surface of the sheet metal. When stamping is completed, the elastic limiting member 615, in a compressed state, can push the insertion base 614 downwards, thereby forcing the sheet metal to effectively separate from the upper mold body 5.

[0035] Preferably, the negative pressure adsorption mechanism 62 includes a suction cup 621, an air guide tube 622, a metal corrugated tube 623, a linkage adjustment module 624, a vacuum pump 625, and a limiting mounting plate 626. Preferably, the suction cup 621 of the negative pressure adsorption mechanism 62 is embedded in the bottom surface of the insertion base 614. More preferably, the suction cup 621 is also connected to the air guide tube 622, which passes through the insertion base 614 and the centrally located guide tube 613. Preferably, the upper axial end of the air guide tube 622 away from the suction cup 621 is also connected to a metal corrugated tube 623 that extends and retracts synchronously with the descent and ascent of the suction cup 621 and the air guide tube 622. More preferably, the upper axial end of the metal corrugated tube 623 is connected to the linkage adjustment module 624. Preferably, the linkage adjustment module 624 is embedded in the limiting mounting plate 626. More preferably, the limiting mounting plate 626 is installed inside the upper mold body 5. Preferably, a vacuum pump 625, connected to the linkage adjustment module 624, is also provided on the top surface of the limiting mounting plate 626. Preferably, the vacuum pump 625 is a CY-FXT-2000 type negative pressure suction pump, which can continuously generate a negative pressure vacuum. Preferably, the metal bellows 623 can be a corrosion-resistant stainless steel bellows with a reinforced structure added to the pipe body to ensure that it does not collapse or leak air under negative pressure environment, so as to ensure the stability of the pipe cavity structure even with expansion and contraction capabilities, and avoid deformation caused by excessive negative pressure. Preferably, the suction cup 621, air guide pipe 622, metal bellows 623, linkage adjustment module 624, and vacuum pump 625 are all sealed with flanges or clamps to prevent air leakage from reducing the suction force.

[0036] Preferably, the linkage adjustment module 624 includes a conductive pipe shell 6241 communicating with the metal bellows 623 and the vacuum pump 625, a sealing ring 6242 disposed in the conductive pipe shell 6241, a sealing plate 6243 cooperating with the sealing ring 6242 to cut off the cavity of the conductive pipe shell 6241, a linkage rod 6244 connected to the sealing plate 6243, and a cross support frame 6245 positioning the working position of the linkage rod 6244. More preferably, the cross support frame 6245 is installed in the cavity of the air duct 622, so that the cross support frame 6245 drives the linkage rod 6244 and the sealing plate 6243 to move up and down. Preferably, the sealing ring 6242 has an inverted frustum-shaped inner ring cavity. More preferably, a sealing ring is provided on the outer inclined surface of the sealing plate 6243. Preferably, a guide perforated plate parallel to the sealing ring plate 6242 is also provided in the guide tube shell 6241 to improve the lifting stability of the linkage rod 6244, avoid abnormal shaking of the linkage rod 6244 which would cause misalignment between the sealing plate 6243 and the sealing ring plate 6242, and improve the cutting effect.

[0037] Preferably, the auxiliary positioning component 7 includes a telescopic rod 71 inserted into the bottom surface of the groove 41 of the lower mold, an elastic telescopic member 72 sleeved on the telescopic rod 71, and an auxiliary positioning plate 73 installed at the top of the telescopic rod 71. The auxiliary positioning plate 73 provided in this application can align and clamp the plate with the insertion base 614 to improve the stability of the plate's positioning, and can also assist in ejecting the plate from the lower mold groove 41 during mold parting, achieving effective automatic demolding. Preferably, the telescopic rod 71 is a conventional double-layer sleeve, which can change its length as needed, thereby improving the directional stability of the support spring represented by the elastic telescopic member 72 during extension and compression deformation, preventing abnormal bending deformation of the spring, and ensuring the effectiveness of supporting the auxiliary positioning plate 73. More preferably, the telescopic rod 71 can be a multi-segment sleeve spliced ​​with multiple inserts, so that its minimum length is effectively shortened. The outer tube of the telescopic rod 71 is directly embedded in the lower mold body 4.

[0038] Preferably, the electrical components involved in this application, such as the primary hydraulic lifting column 31, the secondary hydraulic lifting column 33, and the vacuum pump 625, are all electrically connected to the controller and the power supply. The control method of this application is controlled by the controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, this utility model is only used to protect the mechanical device and its mechanical structural features. Therefore, this utility model will not explain the control method and circuit connection in detail.

[0039] The surface connection method between components not explicitly specified in this application may be a conventional bolt connection, a snap-fit ​​connection, or a fixed connection method such as welding. As a conventional connection method, this application will not elaborate further on this part.

[0040] This utility model is not limited to the above-described optional embodiments. Anyone can derive other various forms of products under the guidance of this utility model. However, regardless of any changes in shape or structure, any technical solution falling within the scope of the claims of this utility model is within the protection scope of this utility model. Those skilled in the art should understand that this utility model specification and its drawings are illustrative and do not constitute a limitation on the claims. The protection scope of this utility model is defined by the claims and their equivalents. Throughout the text, features introduced by "preferred" are merely optional and should not be construed as mandatory. Therefore, the applicant reserves the right to abandon or delete relevant preferred features at any time.

Claims

1. A stamping device for processing aerospace sheet metal, comprising a supporting base plate (1) and a suspended mounting frame (2) mounted on the supporting base plate (1), characterized in that, A lower mold body (4) is suspended on the top surface of the supporting base plate (1) by a stamping lifting mechanism (3), and an upper mold body (5) is provided on the supporting top plate (22) of the suspended mounting frame (2). At the bottom of the upper mold body (5), a negative pressure positioning component (6) is also provided, which can adsorb, position, and push the stamped plate for demolding. The negative pressure positioning component (6) includes an elastic lifting mechanism (61) that extends elastically from the bottom center of the upper mold body (5) to push the stamped plate and a negative pressure adsorption mechanism (62) that is inserted into the elastic lifting mechanism (61) to adsorb and position the plate. An auxiliary positioning component (7) is also provided on the lower mold body (4).

2. The stamping device for processing aerospace sheet metal as described in claim 1, characterized in that, The elastic lifting mechanism (61) includes a mounting seat (611), a support ring plate (612), a central guide tube (613), an insertion base (614), and an elastic limiting member (615), wherein, The mounting sleeve (611) is fitted onto the bottom surface of the upper mold body (5), and the insertion front end of the mounting sleeve (611) is connected to the support ring plate (612), and the central guide tube (613) is movably inserted into the support ring plate (612), and the axial lower end of the central guide tube (613) is connected to the insertion base (614). Multiple elastic limiting members (615) are arranged in a circumferentially spaced manner on the surface of the insertion base (614).

3. The stamping device for processing aerospace sheet metal as described in claim 2, characterized in that, The suction cup (621) of the negative pressure adsorption mechanism (62) is embedded in the bottom surface of the insertion base (614), and the suction cup (621) is also connected to the air guide tube (622) that passes through the insertion base (614) and the centrally located guide tube (613). The upper axial end of the air guide tube (622) away from the suction cup (621) is also connected to a metal bellows tube (623), and the upper axial end of the metal bellows tube (623) is connected to the linkage adjustment module (624). The linkage adjustment module (624) is embedded in the limiting mounting plate (626), and the limiting mounting plate (626) is installed inside the upper mold body (5). A vacuum pump (625) communicating with the linkage adjustment module (624) is also provided on the top surface of the limiting mounting plate (626).

4. The stamping apparatus for processing aerospace sheet metal as described in claim 3, characterized in that, The linkage adjustment module (624) includes a conductive pipe shell (6241) communicating with the metal bellows (623) and the vacuum pump (625), a sealing ring (6242) disposed in the conductive pipe shell (6241), a sealing plate (6243) cooperating with the sealing ring (6242) to cut off the cavity of the conductive pipe shell (6241), a linkage rod (6244) connected to the sealing plate (6243), and a cross support frame (6245) for positioning the working position of the linkage rod (6244). The cross support frame (6245) is installed in the cavity of the air guide pipe (622).

5. The stamping device for processing aerospace sheet metal as described in claim 4, characterized in that, The upper mold body (5) includes an upper mold base (51) and an upper mold boss (52), wherein, The upper mold base (51) is centrally mounted on the support top plate (22), and the upper mold boss (52) is installed on the bottom surface of the upper mold base (51).

6. The stamping apparatus for processing aerospace sheet metal as described in claim 5, characterized in that, The lower mold body (4) has a lower mold groove (41) that is adapted to the upper mold boss (52) to define the contour cavity of the bending shape of the plate and a positioning groove (42) that communicates with the lower mold groove (41) and limits the placement of the plate to be processed.

7. The stamping apparatus for processing aerospace sheet metal as described in claim 6, characterized in that, The auxiliary positioning component (7) includes a telescopic rod (71) inserted into the bottom surface of the groove (41) of the lower mold, an elastic telescopic member (72) sleeved on the telescopic rod (71), and an auxiliary positioning plate (73) installed at the top of the telescopic rod (71).

8. The stamping apparatus for processing aerospace sheet metal as described in claim 7, characterized in that, The top support plate (22) of the suspended mounting frame (2) is suspended above the bottom support plate (1) via the support frame (21).

9. The stamping apparatus for processing aerospace sheet metal as described in claim 8, characterized in that, The stamping lifting mechanism (3) includes a primary hydraulic lifting column (31), a connecting middle plate (32), and a secondary hydraulic lifting column (33), wherein, Multiple primary hydraulic lifting columns (31) are arrayed and supported on the support base plate (1), and a connecting middle plate (32) is connected to the top of each primary hydraulic lifting column (31). The secondary hydraulic lifting columns (33) connected to the bottom surface of the lower mold body (4) are arrayed and supported on the connecting plate (32).

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