Double-pressure combined punching and shearing equipment and method for training target drone metal plate

Abstract

The invention belongs to the technical field of hydraulic punching and reducing machines, particularly relates to double-pressure combined punching and shearing equipment and method for training target drone metal plates, and aims to solve the problem that time and labor are wasted due to the fact that whether an upper die and a lower die are aligned or not needs to be tested before punching every time in the prior art. A main beam rib plate with a vertical plate face is inserted in the middle of the top end of the main control box, an angle steel punching station and a plate shearing station are arranged in the middle of the main beam rib plate, a hydraulic jacking mechanism is fixed to the position, close to the top end, of one side of the main beam rib plate, and a vertical extension rod is arranged at the bottom end of the hydraulic jacking mechanism. Two parallel bearing edge plates are fixed to the positions, below the extension rods, of the side face of the main beam rib plate. The laser lamp above can be turned on during punching, if the laser face penetrates through the alignment seam, and light formed on the upper surface of the die holder is parallel to one detection line, it is indicated that the upper die plate and the die holder are not staggered, and therefore it can be rapidly ensured that the punching position is aligned.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic punching and shearing machines, and particularly to a double-pressure combined punching and shearing device and method for metal plates of training target machines. Background Art

[0002] A hydraulic combined punching and shearing machine is a mechanical device integrating multiple functions such as punching, shearing, and bending. It is widely used in the metal processing industry, especially for processing metal plates such as steel plates and steel materials. The hydraulic system provides stable and powerful power output, enabling high-precision and high-speed processing, and greatly improving work efficiency.

[0003] After retrieval, when it is necessary to punch out some products with special shapes in the prior art, corresponding molds are often required. The upper and lower molds need to be installed on the machine base and the punching head respectively. However, after each punching, demoulding and loading and unloading are required. In this way, it is very easy for the upper and lower molds to be misaligned due to accidental collision. If not adjusted in time, production accidents are likely to occur. Therefore, we propose a new punching and shearing device and method that can quickly identify whether the upper and lower molds are skewed. Summary of the Invention

[0004] Aiming at the technical problem that it is time-consuming and laborious to test whether the upper and lower molds are aligned before each punching in the prior art, the present invention adopts the following technical solutions:

[0005] A double-pressure combined punching and shearing device for metal plates of a training target machine includes a main control box and a control box. A main beam rib plate with a vertical plate surface is inserted in the middle of the top end of the main control box. An angle steel punching station and a plate shearing station are respectively arranged in the middle of the main beam rib plate. A hydraulic punching top mechanism is fixed near the top end on one side of the main beam rib plate, and a vertical extension rod is arranged at the bottom end of the hydraulic punching top mechanism. Two mutually parallel bearing rib plates are fixed on the side surface of the main beam rib plate below the extension rod, and the same mold base is detachably and fixedly connected to the top ends of the two bearing rib plates; a connecting piece is fixed at the bottom end of the extension rod, and an upper mold part is fixed at the bottom end of the connecting piece. The upper mold part includes an upper template, and a longitudinal alignment slot is opened at one end of the upper surface of the upper template away from the main beam rib plate. A laser lamp is fixed on the circumferential outer wall of the hydraulic punching top mechanism above the alignment slot, and multiple detection lines parallel to the alignment slot are arranged on the upper surface of the mold base below the alignment slot.

[0006] Preferably, a self-locking thread is reserved on the circumferential outer wall of the extension rod, and an internally threaded adjusting ring and a nut plate that are pressed against each other are respectively screwed on the circumferential outer wall of the extension rod near the bottom end. A plurality of positioning screw holes that are centrosymmetrically distributed are formed on the circumferential outer wall of the internally threaded adjusting ring, and a positioning bolt is screwed in each positioning screw hole; two symmetrically arranged centering clamping plates are fixed near the middle of the bottom end of the internally threaded adjusting ring; a tension rod is inserted between the two centering clamping plates; a plug post is fixed at the bottom end of the extension rod, and the connecting member includes a connecting sleeve sleeved on the outer wall of the plug post. A horizontal flange plate is fixed at the bottom end of the connecting sleeve, and four right-angle rib plates that are centrosymmetrically distributed are fixed between the outer wall of the connecting sleeve and the upper surface of the flange plate; the thickness of the right-angle rib plate is equal to the distance between the two centering clamping plates; through holes that are adapted to the positions of the tension rods are formed in each right-angle rib plate, so that the whole connecting member can be tightly fixed at the bottom end of the extension rod at a required angle, preventing the connecting member from being skewed due to slight collisions during loading and unloading.

[0007] Preferably, a plurality of through holes are formed in the flange plate, and a stud rod adapted to the through holes is reserved at the top end of the upper template. A counter-nut is screwed on the outer wall of the stud rod at the top of the through hole to fix the upper template and the connecting member.

[0008] Preferably, alignment holes are formed near the four corners of the lower surface of the upper template, and alignment bumps adapted to the alignment holes are reserved near the four corners of the upper surface of the mold base; if the mold base and the upper template can be completely aligned during mold closing, the alignment holes just form a bite with the alignment bumps, forming the last safety guarantee; a mold protrusion is reserved in the middle of the lower surface of the upper template, and stepped embedding holes are formed near the four corners of the lower surface of the upper template; bushings are embedded in the stepped embedding holes, sliding resistance rods are slidably connected in the bushings, and anti-slip pressing blocks are fixed at the bottom ends of the sliding resistance rods. The shape of the anti-slip pressing block is adapted to the shape of the stepped embedding hole. When punching, that is, when the mold protrusion is completely pressed down to the bottom, at this time, the whole anti-slip pressing block is hidden in the stepped embedding hole, that is, the lower surface of the anti-slip pressing block is flush with the lower surface of the upper template; a return spring is fixed between the upper surface of the anti-slip pressing block and the bottom of the stepped embedding hole.

[0009] Preferably, a mold groove adapted to the shape of the mold protrusion is formed in the middle of the upper surface of the mold base, and vertical sliding holes symmetric to each other are respectively formed near the front and rear ends of the bottom of the mold groove. The two vertical sliding holes have the same size, and limiting ear holes are reserved near the top of the circumferential inner walls of the vertical sliding holes. A transverse anti-twist through hole penetrating the mold base is formed in the front surface of the mold base, and the transverse anti-twist through hole is vertically penetrated through the middle positions of the two vertical sliding holes at the same time. A demolding mechanism is arranged in the vertical sliding holes and the transverse anti-twist through hole, and the demolding mechanism includes a demolding ejector rod slidably inserted into the transverse anti-twist through hole. Compression springs and spheres are respectively fixed at both ends of the demolding ejector rod, and a spring stopper is fixed at one end of the compression spring far away from the demolding ejector rod. The spring stopper is fixed at the circumferential inner wall of the orifice of the transverse anti-twist through hole; Pushing blocks are slidably connected in the vertical sliding holes, strip-shaped through holes penetrating the pushing blocks are formed in the side surfaces of the pushing blocks, and round rods with axial lines skew perpendicular to the demolding ejector rod are arranged in the strip-shaped through holes; The demolding ejector rod is slidably inserted into the strip-shaped through holes, and lifting grooves are formed in the circumferential outer walls of the demolding ejector rod near the round rods; Limiting blocks adapted to the limiting ear holes are reserved near the top of the circumferential outer walls of the pushing blocks; Therefore, it can ensure that the bottom of the mold groove is flat before punching. After punching, only need to press the demolding ejector rod inward to lift the two pushing blocks, and then eject the formed metal part clamped at the bottom of the mold groove.

[0010] Preferably, tension springs II are fixed at the bottom ends of the two pushing blocks, and L-shaped supporting plates are fixed at the bottom ends of the tension springs II. The L-shaped supporting plates are fixed on the lower surface of the mold base by bolts; It can tightly fix the two pushing blocks in the vertical sliding holes to ensure that the plane where their tops are located is flush with the bottom of the mold groove.

[0011] Preferably, two parallel limiting rib ribs are reserved on the lower surface of the mold base, and the span of the two limiting rib ribs is adapted to the distance between the two bearing rib plates, so that the two limiting rib ribs just clamp on both sides of the two bearing rib plates; L-shaped clamping holes are formed at one ends of the tops of the two bearing rib plates close to the main beam rib plate, and L-shaped clamping blocks adapted to the L-shaped clamping holes are reserved on the lower surface of the mold base. The horizontal part of the L-shaped clamping block is arranged in a trapezoidal structure, which can make the mold base more and more tightly engaged while being pushed into the L-shaped clamping hole. Screwing ear plates are fixed at one ends of the lower surface of the mold base far away from the L-shaped clamping blocks, and threaded holes I for fixing the screwing ear plates are reserved on the side surfaces of the bearing rib plates. Hexagon socket head cap screws are screwed in the threaded holes I; Through the arranged fixed screwing ear plates and the L-shaped clamping holes that are more and more tightly clamped, not only can the installation of the mold base be more convenient, but also it is not easy to loosen.

[0012] Preferably, a rectangular groove is reserved near the bottom end of the circumferential inner wall of the transverse anti-twist through hole, and an anti-twist convex rib adapted to the rectangular groove is reserved on the circumferential outer wall of the demolding ejector rod; An upper machine cover is fixed at the top end of the main beam rib plate.

[0013] Preferably, the angle steel punching station includes an L-shaped perforation opened in the middle of the main beam rib plate, and a first shearing mechanism adapted to the L-shaped perforation is provided on the front surface of the main beam rib plate, and a first side guard is provided on the front surface of the first shearing mechanism; the shearing station includes a rectangular perforation opened on the main beam rib plate below the L-shaped perforation; a second shearing mechanism is provided on the front surface of the rectangular perforation, and a second side guard is provided on the front surface of the second shearing mechanism; a corner cutting mechanism is provided on one side of the main beam rib plate away from the hydraulic punching mechanism; the corners of the punched metal parts can be trimmed.

[0014] A double-pressing combined punching and shearing method for a metal plate of a training target drone includes the following steps:

[0015] S1: Before use, first fix the die base on the tops of two bearing rib plates and fix it with an internal hexagonal bolt; then adjust the laser lamp at the top of the hydraulic punching mechanism so that the laser surface emitted by the laser lamp falls on the upper surface of the die base near the detection line and is parallel to the detection line;

[0016] Then control the extension rod of the hydraulic punching mechanism to retract to the initial position, and finally fix the relative positions of the connecting piece and the upper template with the internally threaded adjusting ring that has been screwed and fixed; until the laser surface can pass through all the alignment slits, then fix all the positioning bolts on the internally threaded adjusting ring and lock the nut plate;

[0017] S2: At this time, the original metal plate to be punched can be placed in the middle above the die base, and the start button on the control box is pressed manually. At this time, the upper template slowly moves down. Before punching, that is, before the mold protrusion touches the steel plate, the periphery of the steel plate is tightly pressed above the die base in advance; thereby, it can prevent the steel plate from shifting or bouncing due to the release of residual stress during punching or immediately after punching, and improve the safety performance of the device;

[0018] S3: After punching is completed, press the demoulding ejector rod inward. At this time, the rising bevel in the lifting groove of the demoulding ejector rod contacts the round rod, which will lift the two punching blocks, and then eject the formed metal part clamped at the bottom of the mold groove.

[0019] The beneficial effects in the present invention are:

[0020] 1. By providing the alignment slits and detection lines, the laser lamp above can be turned on during punching. If the laser surface passes through the alignment slits and the light formed on the upper surface of the die base is parallel to one of the detection lines, it means that the upper template and the die base are not misaligned, so that the punching position can be quickly ensured to be correct and the accident rate can be reduced.

[0021] 2. By setting a sliding abutting rod that extends downward and is slidably connected in the bushing, before punching, that is, before the mold protrusion contacts the steel plate, the periphery of the steel plate can be tightly pressed against the upper part of the mold base in advance, thereby preventing the steel plate from shifting or bouncing due to the release of residual stress during or immediately after punching, and improving the safety performance of the device.

[0022] 3. By setting a demolding ejector rod and two punching blocks that are controlled by it to push upward, the bottom of the mold groove can be ensured to be flush before punching. After punching, just press the demolding ejector rod inward to lift the two punching blocks, and then eject the formed metal part clamped at the bottom of the mold groove. Brief Description of the Drawings

[0023] Figure 1 It is a schematic diagram of the overall structure of a double-pressure combined punching and shearing device for metal plates of a training target aircraft proposed by the present invention;

[0024] Figure 2 It is a schematic diagram of the bottom-up three-dimensional structure of a double-pressure combined punching and shearing device for metal plates of a training target aircraft proposed by the present invention;

[0025] Figure 3 It is an assembly drawing of the die head part of a double-pressure combined punching and shearing device for metal plates of a training target aircraft proposed by the present invention;

[0026] Figure 4 It is an assembly drawing of the anti-slip pressing block and the sliding abutting rod of a double-pressure combined punching and shearing device for metal plates of a training target aircraft proposed by the present invention;

[0027] Figure 5 It is a schematic diagram of the overall structure of the mold base of a double-pressure combined punching and shearing device for metal plates of a training target aircraft proposed by the present invention;

[0028] Figure 6 It is a schematic diagram of the overall structure of the main beam rib plate of a double-pressure combined punching and shearing device for metal plates of a training target aircraft proposed by the present invention;

[0029] Figure 7 It is a top view of the mold base of a double-pressure combined punching and shearing device for metal plates of a training target aircraft proposed by the present invention;

[0030] Figure 8 A double-pressure combined punching and shearing device for metal plates of a training target aircraft proposed by the present invention Figure 7 The schematic cross-sectional structure along the A-A line;

[0031] Figure 9 It is an assembly drawing of the demolding ejector rod of a double-pressure combined punching and shearing device for metal plates of a training target aircraft proposed by the present invention;

[0032] Figure 10Schematic diagram of the installation structure of the demolding top block in a double-pressure combined punching and shearing device for metal plates of a training target aircraft proposed by the present invention;

[0033] Figure 11 Side view of the die holder in a double-pressure combined punching and shearing device for metal plates of a training target aircraft proposed by the present invention;

[0034] Figure 12 A double-pressure combined punching and shearing device for metal plates of a training target aircraft proposed by the present invention Figure 11 Schematic cross-sectional structure diagram along line B-B;

[0035] Figure 13 Cross-sectional view at the load-bearing rib plate in a double-pressure combined punching and shearing device for metal plates of a training target aircraft proposed by the present invention.

[0036] In the figure: 1, main control box; 2, load-bearing rib plate; 201, L-shaped clamping hole; 3, die holder; 301, die groove; 302, alignment convex block; 303, transverse anti-twist through hole; 304, detection line; 305, vertical sliding hole; 4, alignment slot; 5, upper die part; 501, alignment hole; 502, die protrusion; 503, stepped embedding hole; 6, connecting piece; 601, connecting sleeve; 602, right-angle rib plate; 7, internal thread adjusting ring; 701, positioning bolt; 702, nut plate; 703, centering clamping plate; 8, laser lamp; 9, hydraulic punching mechanism; 10, upper machine cover; 11, side guard part one; 12, main beam rib plate; 1201, L-shaped through hole; 1202, rectangular through hole; 13, side guard part two; 14, control box; 15, demolding ejector rod; 151, sphere; 152, lifting groove; 153, anti-twist convex rib; 16, anti-slip pressing block; 17, return spring; 18, sliding abutting rod; 19, bushing; 20, punching block; 2001, strip-shaped through hole; 2002, limit stop block; 21, spring stop block; 22, compression spring; 23, limit rib; 24, L-shaped support plate; 25, tension spring two; 26, screw-connected ear plate; 27, round rod; 28, L-shaped clamping block. Detailed implementation mode

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0038] In this embodiment, with reference to Figures 1 - 13, A double-pressure combined punching and shearing device for training target aircraft metal plates, including a main control box 1 and a control box 14 that are combined together to form an overall rectangular structure. In the middle of the top of the main control box 1, a main beam rib plate 12 with a vertical plate surface is inserted. An angle steel punching station and a plate shearing station are respectively arranged in the middle of the main beam rib plate 12. A hydraulic punching mechanism 9 is fixed near the top on one side of the main beam rib plate 12, and a vertical extension rod is arranged at the bottom of the hydraulic punching mechanism 9; on the side surface of the main beam rib plate 12 and below the extension rod, two mutually parallel bearing rib plates 2 are fixed, and the same die holder 3 is detachably and fixedly connected to the tops of the two bearing rib plates 2; a connecting piece 6 is fixed at the bottom of the extension rod, and an upper die part 5 is fixed at the bottom of the connecting piece 6. The upper die part 5 includes an upper template, and a longitudinal alignment slot 4 is opened at one end of the upper surface of the upper template away from the main beam rib plate 12. A laser lamp 8 is fixed on the circumferential outer wall of the hydraulic punching mechanism 9 near the upper part of the alignment slot 4, and a plurality of detection lines 304 parallel to the alignment slot 4 are arranged on the upper surface of the die holder 3 near the lower part of the alignment slot 4; through the arranged alignment slot 4 and detection lines 304, the upper laser lamp 8 can be turned on during punching. If the laser surface passes through the alignment slot 4 and the light formed on the upper surface of the die holder 3 is parallel to one of the detection lines 304, it means that the upper template and the die holder 3 are not misaligned, so that the punching position can be quickly ensured to be correct and the accident rate can be reduced.

[0039] Refer to Figure 3 , A self-locking thread is reserved on the circumferential outer wall of the extension rod, and an internally threaded adjusting ring 7 and a nut plate 702 that are pressed against each other are respectively screwed on the circumferential outer wall of the extension rod near the bottom. A plurality of positioning screw holes are symmetrically distributed around the center on the circumferential outer wall of the internally threaded adjusting ring 7, and a positioning bolt 701 is screwed in each positioning screw hole; two symmetrically arranged centering clamping plates 703 are fixed near the middle of the bottom of the internally threaded adjusting ring 7; and a tension rod is inserted between the two centering clamping plates 703; a plug post is fixed at the bottom of the extension rod, and the connecting piece 6 includes a connecting sleeve 601 sleeved on the outer wall of the plug post. A horizontal flange plate is fixed at the bottom of the connecting sleeve 601, and four right-angle rib plates 602 symmetrically distributed around the center are fixed between the outer wall of the connecting sleeve 601 and the upper surface of the flange plate; the thickness of the right-angle rib plate 602 is equal to the distance between the two centering clamping plates 703; a through hole adapted to the position of the tension rod is opened on each right-angle rib plate 602, so that the whole connecting piece 6 can be tightly fixed at the bottom of the extension rod at the required angle to prevent the connecting piece 6 from being skewed due to slight collisions during loading and unloading.

[0040] Refer to Figure 3 , A plurality of through holes are opened on the flange plate, and stud rods adapted to the through holes are reserved at the top of the upper template. Opposing nuts are screwed on the outer wall of the stud rod at the top of the through hole to fix the upper template and the connecting piece 6.

[0041] Refer toFigure 5 , Figure 7 , Figure 9 , calibration holes 501 are respectively formed at the lower surface of the upper template near the four corners, and calibration bumps 302 adapted to the calibration holes 501 are respectively reserved at the upper surface of the die holder 3 near the four corners; if the die holder 3 and the upper template can be completely closed and aligned, the calibration holes 501 just form an engagement with the calibration bumps 302 to form the last safety guarantee; a die protrusion 502 is reserved in the middle of the lower surface of the upper template, and stepped embedding holes 503 are respectively formed at the lower surface of the upper template near the four corners; and bushings 19 are respectively embedded in the stepped embedding holes 503, sliding resisting rods 18 are respectively and slidably connected in the bushings 19, and anti-slip pressing blocks 16 are respectively fixed at the bottom ends of the sliding resisting rods 18, and the shapes of the anti-slip pressing blocks 16 are adapted to the shapes of the stepped embedding holes 503, so that when punching, that is, when the die protrusion 502 is completely pressed down to the bottom, at this time, the whole anti-slip pressing block 16 is hidden in the stepped embedding hole 503, that is, the lower surface of the anti-slip pressing block 16 is flush with the lower surface of the upper template; a return spring 17 is respectively fixed between the upper surface of the anti-slip pressing block 16 and the bottom of the stepped embedding hole 503; by providing the sliding resisting rods 18 slidably connected in the bushings 19 and extending downward, before punching, that is, before the die protrusion 502 contacts the steel plate, the periphery of the steel plate can be tightly pressed above the die holder 3 in advance, so that the steel plate can be prevented from shifting or bouncing due to the release of residual stress during punching or at the moment when punching just ends, and the safety performance of the device is improved.

[0042] Refer to Figures 9 - 12, a mold groove 301 adapted to the shape of the mold protrusion 502 is formed in the middle of the upper surface of the mold base 3. Vertical slide holes 305 that are symmetric to each other are respectively formed at the front and rear ends near the bottom of the mold groove 301. The two vertical slide holes 305 have the same size, and limiting ear holes are reserved near the top of the circumferential inner walls of the vertical slide holes 305. A transverse anti-twist through hole 303 penetrating the mold base 3 is formed on the front surface of the mold base 3, and the transverse anti-twist through hole 303 is vertically communicated with the middle positions of the two vertical slide holes 305 at the same time. A demolding mechanism is arranged in the vertical slide holes 305 and the transverse anti-twist through hole 303, and the demolding mechanism includes a demolding ejector rod 15 slidably inserted into the transverse anti-twist through hole 303. Compression springs 22 and spheres 151 are respectively fixed at both ends of the demolding ejector rod 15, and a spring stopper 21 is fixed at the end of the compression spring 22 away from the demolding ejector rod 15. The spring stopper 21 is fixed at the circumferential inner wall of the orifice of the transverse anti-twist through hole 303; Punching blocks 20 are slidably connected in the vertical slide holes 305, strip-shaped through holes 2001 penetrating the punching blocks 20 are formed on the sides of the punching blocks 20, and round rods 27 with the axis lines skew perpendicular to the demolding ejector rod 15 are arranged in the strip-shaped through holes 2001; The demolding ejector rod 15 is slidably inserted into the strip-shaped through hole 2001, and lifting grooves 152 are formed on the circumferential outer wall of the demolding ejector rod 15 near the round rod 27; Limiting blocks 2002 adapted to the limiting ear holes are reserved near the top of the circumferential outer wall of the punching block 20; Thus, it can be ensured that the bottom of the mold groove 301 is flush before punching. After punching is completed, only need to press the demolding ejector rod 15 inward to lift the two punching blocks 20, and then eject the formed metal part clamped at the bottom of the mold groove 301.

[0043] Refer to Figure 8 , tension springs two 25 are fixed at the bottom ends of the two punching blocks 20, and L-shaped support plates 24 are fixed at the bottom ends of the tension springs two 25. The L-shaped support plates 24 are fixed on the lower surface of the mold base 3 by bolts; By setting like this, the two punching blocks 20 can be firmly fixed in the vertical slide holes 305, ensuring that the plane where their tops are located is flush with the bottom of the mold groove 301.

[0044] Refer to Figure 8 、 Figure 13, two parallel limiting rib ribs 23 are reserved on the lower surface of the die holder 3, and the span of the two limiting rib ribs 23 is adapted to the distance between the two bearing rib plates 2, so that the two limiting rib ribs 23 are just stuck on both sides of the two bearing rib plates 2; L-shaped clamping holes 201 are opened at one end of the top ends of the two bearing rib plates 2 close to the main beam rib plate 12, and L-shaped clamping blocks 28 adapted to the L-shaped clamping holes 201 are reserved on the lower surface of the die holder 3. The horizontal part of the L-shaped clamping block 28 is arranged in a trapezoidal structure, which can make the die holder 3 bite more tightly while being pushed towards the L-shaped clamping hole 201. At one end of the lower surface of the die holder 3 far from the L-shaped clamping block 28, screw connection ear plates 26 are fixed, and a first threaded hole for fixing the screw connection ear plate 26 is reserved on the side surface of the bearing rib plate 2. An internal hexagonal bolt is screwed in the first threaded hole; through the set screw connection ear plate 26 and the L-shaped clamping hole 201 that becomes tighter when squeezed, the installation of the die holder 3 can be made more convenient and not easy to loosen.

[0045] Refer to Figures 9 - 10 , a rectangular groove is reserved on the inner wall of the circumference of the transverse anti-torsion perforation 303 near the bottom end, and an anti-torsion convex rib 153 adapted to the rectangular groove is reserved on the outer wall of the circumference of the demoulding ejector rod 15; the upper cover 10 is fixed at the top end of the main beam rib plate 12.

[0046] Refer to Figure 1 , Figure 2 , Figure 6 , the angle steel punching station includes an L-shaped perforation 1201 opened in the middle of the main beam rib plate 12, and a first shearing mechanism adapted to the L-shaped perforation 1201 is arranged on the front surface of the main beam rib plate 12, and a first side protection member 11 is arranged on the front surface of the first shearing mechanism; the shearing station includes a rectangular perforation 1202 opened on the main beam rib plate 12 below the L-shaped perforation 1201; a second shearing mechanism is arranged on the front surface of the rectangular perforation 1202, and a second side protection member 13 is arranged on the front surface of the second shearing mechanism; a corner cutting mechanism is arranged on one side of the main beam rib plate 12 far from the hydraulic punching mechanism 9; by setting like this, the corners of the punched metal parts can be trimmed.

[0047] A double-pressure combined punching and shearing method for metal plates of a training target aircraft includes the following steps:

[0048] S1: Before use, first fix the die holder 3 on the top ends of the two bearing rib plates 2 and fix it with an internal hexagonal bolt; then adjust the laser lamp 8 at the top end of the hydraulic punching mechanism 9 so that the laser surface emitted by the laser lamp 8 falls on the upper surface of the die holder 3 near the detection line 304 and is parallel to the detection line 304;

[0049] After that, control the extension rod of the hydraulic jacking mechanism 9 to retract to the initial position. Finally, fix the relative positions of the connecting piece 6 and the upper template with the internally threaded adjusting ring 7 that has been screwed and fixed. Until the laser surface can pass through all the alignment slots 4, fix all the positioning bolts 701 on the internally threaded adjusting ring 7 and lock the nut plate 702.

[0050] S2: At this time, the metal plate original piece to be stamped can be placed in the middle above the mold base 3. Press the start button on the control box 14 by point motion. At this time, the upper template slowly moves down. Before punching, that is, before the mold protrusion 502 touches the steel plate, press the periphery of the steel plate tightly against the upper part of the mold base 3 in advance. Thus, it can prevent the steel plate from shifting or bouncing due to the release of residual stress during or immediately after punching, and improve the safety performance of the device.

[0051] S3: After punching is completed, press the demoulding ejector rod 15 inward. At this time, the rising bevel in the lifting slot 152 of the demoulding ejector rod 15 contacts the round rod 27, immediately lifting the two jacking blocks 20, and then ejecting the formed metal part clamped at the bottom of the mold groove 301.

[0052] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A double-pressure combined punching and shearing device and method for metal plates of a training target drone, comprising a main control box (1) and a control box (14). A main beam rib plate (12) with a vertical plate surface is inserted in the middle of the top end of the main control box (1). An angle steel punching station and a plate shearing station are respectively arranged in the middle of the main beam rib plate (12). A hydraulic punching top mechanism (9) is fixed near the top end on one side of the main beam rib plate (12), and a vertical extension rod is arranged at the bottom end of the hydraulic punching top mechanism (9); it is characterized in that, On the side of the main beam rib plate (12) and below the extension rod, two parallel load-bearing rib plates (2) are fixed, and the same die base (3) is detachably and fixedly connected to the tops of the two load-bearing rib plates (2); a connecting piece (6) is fixed to the bottom end of the extension rod, and an upper die part (5) is fixed to the bottom end of the connecting piece (6). The upper die part (5) includes an upper template, and a longitudinal alignment slot (4) is formed at one end of the upper surface of the upper template away from the main beam rib plate (12). A laser lamp (8) is fixed to the outer circumference of the hydraulic jacking mechanism (9) above the alignment slot (4), and a plurality of detection lines (304) parallel to the alignment slot (4) are arranged on the upper surface of the die base (3).

2. The double-pressure combined punching and shearing equipment for metal plates of a training target drone according to claim 1, characterized in that, Self-locking threads are reserved on the outer circumference of the extension rod, and an internally threaded adjusting ring (7) and a nut plate (702) that are pressed against each other by opposing forces are respectively screwed onto the outer circumference of the extension rod near the bottom end. A plurality of positioning screw holes are formed in the circumferential outer wall of the internally threaded adjusting ring (7) and are distributed in central symmetry. A positioning bolt (701) is screwed into each positioning screw hole; two symmetrically arranged centering clamping plates (703) are fixed near the middle of the bottom end of the internally threaded adjusting ring (7); and a tension screw is inserted between the two centering clamping plates (703); a plug post is fixed to the bottom end of the extension rod, and the connecting piece (6) includes a connecting sleeve (601) sleeved on the outer wall of the plug post. A horizontal flange plate is fixed to the bottom end of the connecting sleeve (601), and four right-angle rib plates (602) distributed in central symmetry are fixed between the outer wall of the connecting sleeve (601) and the upper surface of the flange plate; the thickness of the right-angle rib plate (602) is equal to the distance between the two centering clamping plates (703); through holes adapted to the position of the tension screw are formed in each right-angle rib plate (602).

3. The double-pressure combined punching and shearing equipment for metal plates of a training target drone according to claim 2, characterized in that, A plurality of through holes are formed in the flange plate, and stud rods adapted to the through holes are reserved at the top end of the upper template. Opposing nuts are screwed onto the outer wall of the stud rod at the top of the through hole.

4. A double-pressure combined punching and shearing device for training target aircraft metal plates according to claim 1, characterized in that, Alignment holes (501) are formed at the lower surface of the upper template near the four corners, and alignment bumps (302) adapted to the alignment holes (501) are reserved at the upper surface of the die base (3) near the four corners; a die protrusion (502) is reserved in the middle of the lower surface of the upper template, and stepped embedding holes (503) are formed at the lower surface of the upper template near the four corners; and bushings (19) are embedded in the stepped embedding holes (503). Sliding abutment rods (18) are slidably connected in the bushings (19), and anti-slip pressing blocks (16) are fixed to the bottom ends of the sliding abutment rods (18). The shape of the anti-slip pressing block (16) is adapted to the shape of the stepped embedding hole (503); a return spring (17) is fixed between the upper surface of the anti-slip pressing block (16) and the bottom of the stepped embedding hole (503).

5. A double-pressing combined punching and shearing device for metal plates of a training target drone according to claim 4, characterized in that, The middle part of the upper surface of the die base (3) is provided with a die groove (301) adapted to the shape of the die protrusion (502). The bottom of the die groove (301) is provided with symmetrically arranged vertical sliding holes (305) near the front and rear ends respectively. The two vertical sliding holes (305) have the same size, and the inner circumferential walls of the vertical sliding holes (305) near the top are reserved with limiting ear holes. The front of the die base (3) is provided with a transverse anti-twist perforation (303) penetrating through the die base (3), and the transverse anti-twist perforation (303) is vertically penetrated through the middle positions of the two vertical sliding holes (305) at the same time. A demolding mechanism is arranged in the vertical sliding holes (305) and the transverse anti-twist perforation (303). The demolding mechanism includes a demolding ejector rod (15) slidably inserted into the transverse anti-twist perforation (303). Compression springs (22) and spheres (151) are respectively fixed at both ends of the demolding ejector rod (15). One end of the compression spring (22) far from the demolding ejector rod (15) is fixed with a spring stop block (21), and the spring stop block (21) is fixed at the inner circumferential wall of the orifice of the transverse anti-twist perforation (303). The vertical sliding holes (305) are all slidably connected with impact top blocks (20). Strip-shaped through holes (2001) penetrating through the impact top blocks (20) are respectively arranged on the sides of the impact top blocks (20). Round rods (27) with axis lines skew perpendicular to the demolding ejector rod (15) are arranged in the strip-shaped through holes (2001). The demolding ejector rod (15) is slidably inserted into the strip-shaped through holes (2001), and lifting grooves (152) are respectively arranged on the outer circumferential walls of the demolding ejector rod (15) near the round rods (27). Limiting stop blocks (2002) adapted to the limiting ear holes are reserved on the outer circumferential walls of the impact top blocks (20) near the top.

6. The double-pressure combined punching and shearing equipment for metal plates of a training target drone according to claim 5, characterized in that Two tension springs two (25) are respectively fixed at the bottom ends of the two impact top blocks (20), and L-shaped support plates (24) are respectively fixed at the bottom ends of the tension springs two (25). The L-shaped support plates (24) are fixed on the lower surface of the die base (3) by bolts.

7. A double-pressure combined punching and shearing device for metal plates of a training target drone according to claim 6, characterized in that Two parallel limiting rib ribs (23) are reserved on the lower surface of the die base (3), and the span of the two limiting rib ribs (23) is adapted to the distance between the two bearing rib plates (2). L-shaped clamping holes (201) are respectively arranged at one ends of the top ends of the two bearing rib plates (2) close to the main beam rib plate (12). L-shaped clamping blocks (28) adapted to the L-shaped clamping holes (201) are reserved on the lower surface of the die base (3). The horizontal part of the L-shaped clamping block (28) is arranged in a trapezoidal structure. Screw connection ear plates (26) are respectively fixed at one ends of the lower surface of the die base (3) far from the L-shaped clamping blocks (28). Threaded holes one for fixing the screw connection ear plates (26) are reserved on the sides of the bearing rib plates (2), and hexagon socket head cap screws are screwed in the threaded holes one.

8. A double-pressure combined punching and shearing device for metal plates of a training target drone according to claim 7, characterized in that A rectangular groove is reserved on the inner circumferential wall of the transverse anti-twist perforation (303) near the bottom end, and an anti-twist convex rib (153) adapted to the rectangular groove is reserved on the outer circumferential wall of the demolding ejector rod (15). An upper machine cover (10) is fixed at the top end of the main beam rib plate (12).

9. A double-pressure combined punching and shearing device for training target aircraft metal plates according to claim 8, characterized in that, The angle steel punching station includes an L-shaped perforation (1201) opened in the middle of the main beam rib plate (12), and a first slitting mechanism adapted to the L-shaped perforation (1201) is arranged on the front surface of the main beam rib plate (12), and a first side guard member (11) is arranged on the front surface of the first slitting mechanism; the shearing station includes a rectangular perforation (1202) opened on the main beam rib plate (12) below the L-shaped perforation (1201); a second slitting mechanism is arranged on the front surface of the rectangular perforation (1202), and a second side guard member (13) is arranged on the front surface of the second slitting mechanism; a chamfering mechanism is arranged on one side of the main beam rib plate (12) away from the hydraulic jacking mechanism (9).

10. A double-pressure combined punching and shearing method for metal plates of a training target drone, comprising a double-pressure combined punching and shearing device for metal plates of a training target drone as described in claim 9, characterized in that, It includes the following steps: S1: Before use, first fix the die base (3) at the top of the two bearing rib plates (2) and fix it with an inner hexagon bolt; then adjust the laser lamp (8) at the top of the hydraulic jacking mechanism (9) so that the laser surface emitted by the laser lamp (8) falls on the upper surface of the die base (3) near the detection line (304) and is parallel to the detection line (304); Then control the extension rod of the hydraulic jacking mechanism (9) to retract to the initial position, and finally fix the relative positions of the connecting member (6) and the upper template with the internally threaded adjusting ring (7) that has been screwed and fixed; until the laser surface can pass through all the alignment slots (4), then fix all the positioning bolts (701) on the internally threaded adjusting ring (7) and lock the nut plate (702); S2: At this time, the metal plate original to be punched can be placed in the middle above the die base (3), and the start button on the control box (14) is pressed by jogging. At this time, the upper template slowly moves down. Before punching, that is, before the die protrusion (502) touches the steel plate, the periphery of the steel plate is tightly pressed above the die base (3); S3: After punching is completed, press the demoulding ejector rod (15) inward. At this time, the rising inclined opening in the lifting slot (152) of the demoulding ejector rod (15) contacts the round rod (27), that is, the two jacking blocks (20) are lifted, and then the formed metal part clamped at the bottom of the die groove (301) is ejected.

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