Continuous stamping device for forming curved surface of medium plate

Abstract

The invention belongs to the technical field of medium-thickness plate machining, and discloses a continuous stamping device for medium-thickness plate curved surface forming, which comprises a positioning mechanism, and the positioning mechanism comprises a main body shell, a first cavity, a top block, a first vent groove, a second cavity, a side block and a first limiting groove; through cooperation of the top block, the side block and other structures, stamping forming can be conveniently conducted on medium-thickness plates with different widths and thicknesses, the position of the medium-thickness plates can be corrected through extrusion in the moving process of the medium-thickness plates, it can be guaranteed that the medium-thickness plates are located at the accurate position before stamping machining, and therefore the stamping machining precision is improved, and the stamping machining efficiency is improved. Compared with the prior art, stamping defects caused by position deviation of the medium-thickness plates are reduced, the quality of stamping parts is improved, the medium-thickness plates with different widths can be stamped through the sliding blocks, the universality of stamping equipment is greatly improved, stamping dies or equipment parts do not need to be frequently replaced for the medium-thickness plates with different widths, the production cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of medium and heavy plate processing, and specifically relates to a continuous stamping device for the curved surface forming of medium and heavy plates. Background Art

[0002] In modern manufacturing, medium and heavy plates, with their excellent strength and stiffness characteristics, are widely used in many key fields such as construction, bridges, ships, and automobile manufacturing. From towering skyscrapers to ten-thousand-ton ocean liners cutting through the waves, medium and heavy plates play an indispensable and important role. For example, in the aerospace field, components such as the fuselage and wings of airplanes need to be processed from medium and heavy plates into specific curved surface shapes to meet aerodynamic requirements; in automobile manufacturing, some parts of the body frame also require the curved surface forming of medium and heavy plates to provide structural strength and an aesthetic appearance. During the production process of medium and heavy plates, curved surface forming is an important processing technology, and the processing quality and efficiency determine the performance and market competitiveness of the final product.

[0003] Existing stamping devices for the curved surface forming of medium and heavy plates can often only process medium and heavy plates with specific widths and thicknesses. For medium and heavy plates of different specifications, it is necessary to frequently replace the molds or equipment, which is not only costly and has poor versatility, but also causes the stamping of the device to be intermittent due to downtime, reducing the stamping efficiency and making the device unable to continuously stamp medium and heavy plates. Therefore, a continuous stamping device for the curved surface forming of medium and heavy plates is proposed. Summary of the Invention

[0004] To solve the problems raised in the above background art, the present invention provides a continuous stamping device for the curved surface forming of medium and heavy plates.

[0005] To achieve the above object, the present invention provides the following technical solution: A continuous stamping device for the curved surface forming of medium and heavy plates, including a main body mechanism, and further including: A positioning mechanism, the main body mechanism is located inside the positioning mechanism; Among them, the positioning mechanism includes a main body housing, a first cavity, a top block, a first ventilation groove, a second cavity, a side block, and a first limiting groove. A first cavity and a second cavity are opened inside the main body housing. A top block for adapting to the thickness of the medium and heavy plate is slidably connected inside the first cavity, and a side block for correcting the position of the medium and heavy plate is slidably connected inside the second cavity. The first cavity is communicated with the second cavity through the first ventilation groove. A first limiting groove is opened on the side block.

[0006] Preferably, a plurality of first springs are fixedly connected to the top of the top block, and a second spring is fixedly connected to the side of the side block away from the first limiting groove. The top of the top block is elastically connected to the inner wall of the first cavity through the first spring, and the side of the side block away from the first limiting groove is elastically connected to the inner wall of the second cavity through the second spring. The bottom of the top block and the side of the side block close to the first limiting groove respectively penetrate through the inner walls of the first cavity and the second cavity, and inclined surfaces are provided on both the top block and the side block.

[0007] Preferably, a buffer mechanism is arranged inside the positioning mechanism. The buffer mechanism includes a third cavity, and a plurality of first piston rods are slidably connected inside the third cavity. A third spring is fixedly connected to the bottom of the first piston rod, and a buffer plate is rotatably connected to the top of the first piston rod. A second ventilation groove is formed on the side of the third cavity, and a forming groove is formed inside the main body housing.

[0008] Preferably, the bottom of the first piston rod is elastically connected to the inner wall of the third cavity through the third spring. The top of the first piston rod penetrates through the inner wall of the third cavity. The forming groove is located above the third cavity. There are a plurality of buffer plates, and the buffer plates are slidably connected to the forming groove.

[0009] Preferably, the third cavity communicates with the inner wall of the second cavity through the second ventilation groove, and a plurality of the buffer plates are all located below the side block.

[0010] Preferably, a stamping mechanism is arranged inside the positioning mechanism. The stamping mechanism is located above the buffer mechanism. The stamping mechanism includes a cylinder, and a telescopic rod is slidably connected inside the cylinder. A stamping block is fixedly connected to the bottom of the telescopic rod. A chute is formed on the bottom of the stamping block, a second limiting groove is formed on the inner wall of the chute, a sliding rod is fixedly connected inside the chute, a slider is slidably connected inside the chute, a limiting block is fixedly connected to the top and side of the slider, and a sliding hole is formed in the slider.

[0011] Preferably, the slider is slidably connected to the second limiting groove through the limiting block at the top, the slider is slidably connected to the sliding rod through the sliding hole. The bottoms of the slider and the stamping block are both arc-shaped. The stamping block is located on the side of the side block close to the buffer plate. The cylinder is located above the main body housing. The slider is located on the side of the stamping block close to the side block. The slider is slidably connected to the first limiting groove through the limiting block on the side. A plurality of the buffer plates are all located below the stamping block and the slider.

[0012] Preferably, the main body mechanism includes a medium-thick plate. A plurality of rollers are rotatably connected inside the main body housing. Two adjustment slots are provided on the side of the main body housing. A discharge slot is provided on one side of the main body housing close to the adjustment slot. The rollers are slidably connected to the adjustment slots. The medium-thick plate and the discharge slot are both located between the plurality of rollers. The medium-thick plate is slidably connected to the inner wall of the main body housing. The top and bottom of the medium-thick plate are respectively abutted against the plurality of rollers. The size of the discharge slot is larger than that of the medium-thick plate. The rollers located inside the adjustment slots are directly elastically connected to the inner walls of the adjustment slots through telescopic rod springs.

[0013] Preferably, a discharge mechanism is provided above the positioning mechanism. The discharge mechanism includes a first air extraction cavity and an airbag. A second piston rod is slidably connected inside the first air extraction cavity. The top of the second piston rod is fixedly connected to a connecting plate. A ventilation hole is provided on the top of the main body housing. A second air extraction cavity is provided on one side of the main body housing away from the stamping block. A push plate is slidably connected inside the second air extraction cavity. An air delivery pipe is provided on one side of the second air extraction cavity away from the push plate. The top of the connecting plate abuts against the airbag. A fourth spring is fixedly connected inside the airbag.

[0014] Preferably, the bottom of the connecting plate is fixedly connected to the top of the stamping block. The inner wall of the airbag is elastically connected to the inner wall of the main body housing through the fourth spring. The inside of the airbag is communicated with the second air extraction cavity through the air delivery pipe. The push plate penetrates through the inner wall of the second air extraction cavity and extends into the interior of the second cavity. One side of the push plate away from the second air extraction cavity abuts against the side block. The inside of the first air extraction cavity is communicated with the inside of the second cavity through the ventilation hole.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: Through the cooperation of structures such as the top block and the side block, the present invention facilitates the stamping and forming of medium-thick plates with different widths and thicknesses. The side block and the top block can adapt to the width and height of the medium-thick plate. During the movement of the medium-thick plate, its position can be corrected by extrusion, which helps to ensure that the medium-thick plate is in a relatively accurate position before stamping processing, thereby improving the accuracy of stamping processing, reducing stamping defects caused by the position deviation of the medium-thick plate, improving the quality of stamped parts, and applying a pulling force to the limiting block on the side of the slider through the first limiting groove, causing it to move in the chute towards the side block, enabling the slider to stamp medium-thick plates with different widths. This greatly enhances the versatility of the stamping equipment, eliminates the need to frequently replace stamping dies or equipment components for medium-thick plates with different widths, reduces production costs and improves production efficiency; Through the cooperation of structures such as a buffer plate and a third spring, the present invention facilitates the support and buffering of the deformation of the medium-thick plate during the stamping process. During the stamping process, the medium-thick plate will squeeze the top block downward, causing the top block to squeeze the first piston rod downward. At the same time, because the buffer plate is rotatable on the first piston rod, several buffer plates will fit the curved surface formed by the medium-thick plate, avoiding defects such as local excessive deformation or wrinkles caused by uneven force during stamping of the medium-thick plate, thereby improving the shape accuracy and surface quality of the medium-thick plate after stamping. The downward movement of the first piston rod will squeeze the space in the third spring and the third cavity. At the same time, since the spaces in the first cavity and the second cavity are both squeezed, and the first cavity, the second cavity, and the third cavity are connected through the first ventilation groove and the second ventilation groove, the air pressure in the third cavity is relatively high. At this time, the buffer plate is supported and buffered by the air pressure in the third cavity and the elastic force of the third spring, which can effectively buffer the impact force during the stamping process, making the stamping effect more stable. At the same time, the vibration energy generated during the stamping process can be absorbed by the third spring and the air pressure, reducing the impact on other components of the stamping equipment and protecting the normal operation of the entire equipment, which is beneficial to the continuous stamping of the medium-thick plate; Through the cooperation of structures such as a second piston rod and a push plate, the present invention facilitates the blanking of the medium-thick plate. After stamping, the telescopic rod is lifted by the air cylinder, which will drive the second piston rod to move upward in the first air extraction cavity, and the gas in the second cavity is inhaled into the first air extraction cavity through the ventilation hole, reducing the air pressure in the second cavity, thereby reducing the extrusion force of the side block and the top block on the medium-thick plate. When the top of the connecting plate abuts against the airbag, the continued upward movement of the stamping block will squeeze the airbag through the connecting plate, causing the gas inside it to enter the second air extraction cavity through the air delivery pipe, applying pressure to the push plate, thereby pushing the side block to push the medium-thick plate out from the discharge chute, realizing the automation of unloading, reducing the workload of manual unloading, improving production efficiency, and also reducing the safety risks that may be brought by manual operation, facilitating the continuous stamping of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of the positioning mechanism of the present invention; Figure 2 is a front structural schematic diagram of the main body mechanism of the present invention; Figure 3 is a sectional structural schematic diagram of the stamping mechanism of the present invention; Figure 4 is a sectional structural schematic diagram of the positioning mechanism of the present invention; Figure 5 is a sectional structural schematic diagram of the unloading mechanism of the present invention; Figure 6 is a three-dimensional structural schematic diagram of the buffer mechanism of the present invention; Figure 7 is an exploded structural schematic diagram of the positioning mechanism of the present invention; Figure 8 This is a schematic view of the upward structure of the stamping structure of the present invention.

[0017] In the figure: 1, positioning mechanism; 101, main body housing; 102, first cavity; 103, first spring; 104, top block; 105, first ventilation groove; 106, second cavity; 107, second spring; 108, side block; 109, first limiting groove; 2, buffering mechanism; 201, third cavity; 202, third spring; 203, piston rod; 204, buffer plate; 205, second ventilation groove; 206, forming groove; 3, stamping mechanism; 301, cylinder; 302, telescopic rod; 303, stamping block; 304, chute; 305, second limiting groove; 306, sliding rod; 307, slider; 308, limiting block; 309, sliding hole; 4, main body mechanism; 401, medium-thick plate; 402, roller; 403, adjustment groove; 404, discharging groove; 405, telescopic rod spring; 5, discharging mechanism; 501, first air extraction cavity; 502, second piston rod; 503, connecting plate; 504, ventilation hole; 505, second air extraction cavity; 506, push plate; 507, air delivery pipe; 508, airbag; 509, fourth spring. Specific embodiments

[0018] 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] As Figures 1 to 8 shown, the present invention provides a continuous stamping device for forming the curved surface of a medium-thick plate, including a main body mechanism 4, and further including: A positioning mechanism 1, and the main body mechanism 4 is located inside the positioning mechanism 1; Among them, the positioning mechanism 1 includes a main body housing 101, a first cavity 102, a top block 104, a first ventilation groove 105, a second cavity 106, a side block 108, and a first limiting groove 109. The inside of the main body housing 101 is provided with a first cavity 102 and a second cavity 106. A top block 104 for adapting to the thickness of the medium-thick plate 401 is slidably connected inside the first cavity 102. A side block 108 for correcting the position of the medium-thick plate 401 is slidably connected inside the second cavity 106. The first cavity 102 communicates with the second cavity 106 through the first ventilation groove 105. The first limiting groove 109 is opened on the side block 108.

[0020] A plurality of first springs 103 are fixedly connected to the top of the top block 104. A second spring 107 is fixedly connected to the side of the side block 108 away from the first limiting groove 109. The top of the top block 104 is elastically connected to the inner wall of the first cavity 102 through the first spring 103. The side of the side block 108 away from the first limiting groove 109 is elastically connected to the inner wall of the second cavity 106 through the second spring 107. The bottom of the top block 104 and the side of the side block 108 close to the first limiting groove 109 respectively penetrate through the inner walls of the first cavity 102 and the second cavity 106. The top block 104 and the side block 108 are both provided with inclined surfaces.

[0021] Adopting the above scheme: Through the cooperation of structures such as the top block 104 and the side block 108, it is convenient to stamp and form medium-thick plates 401 with different widths and thicknesses. During the process of conveying the medium-thick plate 401, its top will squeeze the inclined surface on the top block 104, causing it to move upward under the action of pressure and squeeze the first spring 103 and compress the space in the first cavity 102. At the same time, the side of the medium-thick plate 401 will squeeze the inclined surface on the side block 108, causing it to slide away from the medium-thick plate 401 under pressure, squeeze the second spring 107 and compress the space in the second cavity 106, so that the side block 108 and the top block 104 can adapt to the width and height of the medium-thick plate 401, and the position of the medium-thick plate 401 can be corrected by squeezing during its movement, which helps to ensure that the medium-thick plate 401 is in a relatively accurate position before stamping processing, thereby improving the accuracy of stamping processing, reducing stamping defects caused by the position deviation of the medium-thick plate 401, improving the quality of stamped parts, and applying a pulling force to the limiting block 308 on the side of the slider 307 through the first limiting groove 109, causing it to move in the chute 304 in the direction close to the side block 108, so that the slider 307 can stamp medium-thick plates 401 with different widths, which greatly enhances the versatility of the stamping equipment, eliminates the need to frequently replace stamping dies or equipment components for medium-thick plates with different widths, reduces production costs and improves production efficiency.

[0022] Such as Figures 3 to 8As shown in the figure, a buffer mechanism 2 is arranged inside the positioning mechanism 1. The buffer mechanism 2 includes a third cavity 201. A plurality of first piston rods 203 are slidably connected inside the third cavity 201. A third spring 202 is fixedly connected to the bottom of the first piston rod 203. A buffer plate 204 is rotatably connected to the top of the first piston rod 203. A second ventilation groove 205 is formed on the side of the third cavity 201. A forming groove 206 is formed inside the main body housing 101. The bottom of the first piston rod 203 is elastically connected to the inner wall of the third cavity 201 through the third spring 202. The top of the first piston rod 203 penetrates through the inner wall of the third cavity 201. The forming groove 206 is located above the third cavity 201. There are a plurality of buffer plates 204. The buffer plates 204 are slidably connected to the forming groove 206. The third cavity 201 communicates with the inner wall of the second cavity 106 through the second ventilation groove 205. A plurality of buffer plates 204 are all located below the side block 108.

[0023] A stamping mechanism 3 is arranged inside the positioning mechanism 1. The stamping mechanism 3 is located above the buffer mechanism 2. The stamping mechanism 3 includes a cylinder 301. A telescopic rod 302 is slidably connected inside the cylinder 301. A stamping block 303 is fixedly connected to the bottom of the telescopic rod 302. A chute 304 is formed on the bottom of the stamping block 303. A second limiting groove 305 is formed on the inner wall of the chute 304. A sliding rod 306 is fixedly connected inside the chute 304. A slider 307 is slidably connected inside the chute 304. Limit blocks 308 are fixedly connected to the top and side of the slider 307. A sliding hole 309 is formed in the slider 307. The top of the cylinder 301 is connected to the stamping frame in the workshop.

[0024] The slider 307 is slidably connected to the second limiting groove 305 through the limit block 308 at the top. The slider 307 is slidably connected to the sliding rod 306 through the sliding hole 309. The bottoms of the slider 307 and the stamping block 303 are both arc-shaped. The stamping block 303 is located on the side of the side block 108 close to the buffer plate 204. The cylinder 301 is located above the main body housing 101. The slider 307 is located on the side of the stamping block 303 close to the side block 108. The slider 307 is slidably connected to the first limiting groove 109 through the limit block 308 on the side. A plurality of buffer plates 204 are all located below the stamping block 303 and the slider 307.

[0025] The main body mechanism 4 includes a medium-thick plate 401. A plurality of rollers 402 are rotatably connected inside the main body housing 101. Two adjustment slots 403 are provided on the side of the main body housing 101. A discharge slot 404 is provided on one side of the main body housing 101 close to the adjustment slot 403. The rollers 402 are slidably connected to the adjustment slots 403. Both the medium-thick plate 401 and the discharge slot 404 are located between a plurality of rollers 402. The medium-thick plate 401 is slidably connected to the inner wall of the main body housing 101. The top and bottom of the medium-thick plate 401 are respectively abutted against a plurality of rollers 402. The size of the discharge slot 404 is larger than that of the medium-thick plate 401. The rollers 402 located inside the adjustment slots 403 are directly elastically connected to the inner wall of the adjustment slots 403 through telescopic rod springs 405.

[0026] Adopting the above scheme: Through the cooperation of structures such as the buffer plate 204 and the third spring 202, it is convenient to support and buffer the deformation of the medium-thick plate 401 during the stamping process. During the stamping process, the medium-thick plate 401 will squeeze the buffer plate 204 downward, causing the buffer plate 204 to squeeze the first piston rod 203 downward. At the same time, because the buffer plate 204 is rotatable on the first piston rod 203, a plurality of buffer plates 204 will fit the curved surface formed by the medium-thick plate 401, avoiding defects such as local excessive deformation or wrinkles of the medium-thick plate 401 due to uneven stress during stamping, thereby improving the shape accuracy and surface quality of the medium-thick plate 401 after stamping. When the first piston rod 203 moves downward, it will squeeze the space in the third spring 202 and the third cavity 201. At the same time, since the spaces in the first cavity 102 and the second cavity 106 are both squeezed, and the first cavity 102, the second cavity 106, and the third cavity 201 are connected through the first ventilation groove 105 and the second ventilation groove 205, the air pressure in the third cavity 201 is relatively large. At this time, the buffer plate 204 will be supported and buffered by the air pressure in the third cavity 201 and the elastic force of the third spring 202, which can effectively buffer the impact force during the stamping process, make the stamping effect more stable, and at the same time, the vibration energy generated during the stamping process can be absorbed by the third spring 202 and the air pressure, reducing the impact on other components of the stamping equipment and protecting the normal operation of the entire equipment, which is beneficial to continuous stamping of the medium-thick plate 401; When the medium-thick plate 401 is wider or thicker, the punching force required for the medium-thick plate 401 will increase. Since the first cavity 102, the second cavity 106, and the third cavity 201 are connected through the first ventilation groove 105 and the second ventilation groove 205, the air pressure in the third cavity 201 will increase, thereby increasing the supporting force for the medium-thick plate 401, maintaining the stability of stamping, enabling the device to adaptively adjust the supporting force according to the width and thickness of the medium-thick plate 401, and improving the adaptive effect of the device.

[0027] Such as Figures 5 to 8As shown in the figure, a discharging mechanism 5 is arranged above the positioning mechanism 1. The discharging mechanism 5 includes a first air extraction cavity 501 and an airbag 508. A second piston rod 502 is slidably connected inside the first air extraction cavity 501. The top of the second piston rod 502 is fixedly connected with a connecting plate 503. A ventilation hole 504 is opened at the top of the main body housing 101. A second air extraction cavity 505 is arranged on one side of the main body housing 101 away from the stamping block 303. A push plate 506 is slidably connected inside the second air extraction cavity 505. An air delivery pipe 507 is arranged on one side of the second air extraction cavity 505 away from the push plate 506. The top of the connecting plate 503 abuts against the airbag 508. A fourth spring 509 is fixedly connected inside the airbag 508.

[0028] A fixed connection is provided between the bottom of the connecting plate 503 and the top of the stamping block 303. The inner wall of the airbag 508 is elastically connected to the inner wall of the main body housing 101 through the fourth spring 509. The inside of the airbag 508 is communicated with the second air extraction cavity 505 through the air delivery pipe 507. The push plate 506 penetrates through the inner wall of the second air extraction cavity 505 and extends into the second cavity 106. One side of the push plate 506 away from the second air extraction cavity 505 abuts against the side block 108. The inside of the first air extraction cavity 501 is communicated with the inside of the second cavity 106 through the ventilation hole 504.

[0029] With the above scheme: Through the cooperation of structures such as the second piston rod 502 and the push plate 506, it is convenient to unload the medium-thick plate 401. After stamping is completed, when the telescopic rod 302 is lifted by the cylinder 301, the second piston rod 502 will be lifted inside the first air extraction cavity 501. The gas in the second cavity 106 is sucked into the first air extraction cavity 501 through the ventilation hole 504, reducing the air pressure in the second cavity 106, thereby reducing the extrusion force of the side block 108 and the top block 104 on the medium-thick plate 401. When the top of the connecting plate 503 abuts against the airbag 508, when the stamping block 303 continues to rise, it will squeeze the airbag 508 through the connecting plate 503, and the gas inside it will enter the second air extraction cavity 505 through the air delivery pipe 507, applying pressure to the push plate 506, thereby pushing the side block 108 to push the medium-thick plate 401 out from the unloading groove 404, realizing the automation of unloading, reducing the workload of manual unloading, improving production efficiency, and also reducing the safety risks that may be brought by manual operation, facilitating the continuous stamping of the device.

[0030] Working principle and usage process of the present invention: First, an external power source is used to rotate the roller 402 located below the stamping block 303, and the medium-thick plate 401 to be stamped is placed inside the main body housing 101, so that it is driven by the rotation of the roller 402 and moves below the slider 307. When the medium-thick plate 401 passes through the roller 402 on the side of the slider 307, it will upwardly squeeze the roller 402 to compress the telescopic rod spring 405 at its top, and the roller 402 will apply pressure to the top of the medium-thick plate 401 through the elastic force of the telescopic rod spring 405. During this process, the top of the medium-thick plate 401 will squeeze the inclined surface on the top block 104, causing it to move upward under the action of the pressure and squeeze the first spring 103 and compress the space in the first cavity 102. At the same time, the side of the medium-thick plate 401 will squeeze the inclined surface on the side block 108, causing it to slide away from the medium-thick plate 401 under the pressure, squeeze the second spring 107 and compress the space in the second cavity 106, so that the side block 108 and the top block 104 can adapt to the width and height of the medium-thick plate 401, and the position of the medium-thick plate 401 can be corrected by squeezing during its movement, which helps to ensure that the medium-thick plate 401 is in a relatively accurate position before stamping processing, and will apply a pulling force to the limiting block 308 on the side of the slider 307 through the first limiting groove 109, causing it to move in the sliding groove 304 towards the side block 108, so that the slider 307 can stamp medium-thick plates 401 with different widths; Subsequently, the cylinder 301 is used to lower the telescopic rod 302, driving the stamping block 303 and the slider 307 to descend to stamp the medium-thick plate 401 below it, so that the medium-thick plate 401 is formed into a curved surface under the action of the stamping force. During this process, the medium-thick plate 401 will downwardly squeeze the top block 104, causing the top block 104 to downwardly squeeze the first piston rod 203. At the same time, because the buffer plate 204 is rotatable on the first piston rod 203, several buffer plates 204 will fit the curved surface formed by the medium-thick plate 401, avoiding defects such as local excessive deformation or wrinkles of the medium-thick plate 401 due to uneven force during stamping, thereby improving the shape accuracy and surface quality of the medium-thick plate 401 after stamping. The downward movement of the first piston rod 203 will squeeze the third spring 202 and the space in the third cavity 201. At the same time, since the spaces in the first cavity 102 and the second cavity 106 are both squeezed, and the first cavity 102, the second cavity 106 and the third cavity 201 are connected through the first ventilation groove 105 and the second ventilation groove 205, the air pressure in the third cavity 201 is relatively large. At this time, the buffer plate 204 is supported and buffered by the air pressure in the third cavity 201 and the elastic force of the third spring 202, which can effectively buffer the impact force during the stamping process and at the same time reduce the impact on other components of the stamping equipment; During the downward stamping process of the stamping block 303, the second piston rod 502 will be driven by the connecting plate 503 to move downward inside the first air extraction cavity 501. The air pressure inside the second cavity 106 will be further compressed through the air vent hole 504. After the stamping is completed, when the telescopic rod 302 is driven to move upward by the air cylinder 301, the second piston rod 502 will be driven to move upward inside the first air extraction cavity 501. The gas inside the second cavity 106 will be sucked into the first air extraction cavity 501 through the air vent hole 504, reducing the air pressure inside the second cavity 106, thereby reducing the extrusion force of the side block 108 and the top block 104 on the medium-thick plate 401. When the top of the connecting plate 503 abuts against the airbag 508, when the stamping block 303 continues to move upward, it will squeeze the airbag 508 through the connecting plate 503, and the gas inside it will enter the second air extraction cavity 505 through the air delivery pipe 507, applying pressure to the push plate 506, thereby pushing the side block 108 to push the medium-thick plate 401 out from the unloading groove 404. The spacing of the unloading groove 404 is greater than the spacing of the area for conveying the medium-thick plate 401 inside the main body housing 101, so that even if the two sides of the medium-thick plate 401 are warped during bending forming, blanking work can be carried out on it. Finally, the above steps can be repeated to perform continuous stamping work.

[0031] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A continuous stamping device for forming curved surfaces of medium and thick plates, comprising a main body mechanism (4), characterized in that: Also includes: A positioning mechanism (1), wherein the main body mechanism (4) is located inside the positioning mechanism (1); The positioning mechanism (1) comprises a main shell (101), a first cavity (102), a top block (104), a first ventilation groove (105), a second cavity (106), a side block (108) and a first limiting groove (109); the main shell (101) is provided with a first cavity (102) and a second cavity (106); the first cavity (102) is slidably connected to a top block (104) for self-adapting the thickness of a medium-thick plate (401); the second cavity (106) is slidably connected to a side block (108) for correcting the position of the medium-thick plate (401); the first cavity (102) is connected to the second cavity (106) via the first ventilation groove (105); and the side block (108) is provided with a first limiting groove (109).

2. The continuous punching device for curved surface forming of medium and thick plates according to claim 1 is characterized in that: The top of the top block (104) is fixedly connected to a plurality of first springs (103); a side of the side block (108) away from the first limiting groove (109) is fixedly connected to a second spring (107); the top of the top block (104) is elastically connected to the inner wall of the first cavity (102) via the first springs (103); a side of the side block (108) away from the first limiting groove (109) is elastically connected to the inner wall of the second cavity (106) via the second springs (107); the bottom of the top block (104) and a side of the side block (108) close to the first limiting groove (109) respectively penetrate the inner walls of the first cavity (102) and the second cavity (106); and both the top block (104) and the side block (108) are provided with inclined surfaces.

3. The continuous punching device for curved surface forming of medium and thick plates according to claim 2 is characterized in that: A buffer mechanism (2) is arranged inside the positioning mechanism (1), and the buffer mechanism (2) comprises a third cavity (201), a plurality of first piston rods (203) are slidably connected inside the third cavity (201), a third spring (202) is fixedly connected to the bottom of the first piston rod (203), a buffer plate (204) is rotatably connected to the top of the first piston rod (203), a second ventilation groove (205) is provided on the side of the third cavity (201), and a molding groove (206) is provided inside the main body shell (101).

4. The continuous punching device for curved surface forming of medium and thick plates according to claim 3 is characterized in that: The bottom of the first piston rod (203) is elastically connected to the inner wall of the third cavity (201) via a third spring (202); the top of the first piston rod (203) passes through the inner wall of the third cavity (201); the molding groove (206) is located above the third cavity (201); there are a plurality of buffer plates (204); and the buffer plates (204) are slidably connected to the molding groove (206).

5. The continuous punching device for curved surface forming of medium and thick plates according to claim 3 is characterized in that: The third cavity (201) is in communication with the inner wall of the second cavity (106) via the second ventilation groove (205), and the plurality of buffer plates (204) are all located below the side block (108).

6. The continuous punching device for curved surface forming of medium and thick plates according to claim 3 is characterized in that: A punching mechanism (3) is arranged inside the positioning mechanism (1), and the punching mechanism (3) is located above the buffer mechanism (2). The punching mechanism (3) comprises a cylinder (301), and a telescopic rod (302) is slidably connected inside the cylinder (301), and a punching block (303) is fixedly connected to the bottom of the telescopic rod (302), and a sliding groove (304) is provided at the bottom of the punching block (303), and a second limiting groove (305) is provided on the inner wall of the sliding groove (304), and a sliding rod (306) is fixedly connected inside the sliding groove (304), and a sliding block (307) is slidably connected inside the sliding groove (304), and the top and side surfaces of the sliding block (307) are fixedly connected to the limiting block (308), and a sliding hole (309) is provided on the sliding block (307).

7. The continuous punching device for curved surface forming of medium and thick plates according to claim 6, characterized in that: The slider (307) is slidably connected to the second limiting groove (305) via a limiting block (308) on the top, and the slider (307) is slidably connected to the slide rod (306) via a sliding hole (309). The bottoms of the slider (307) and the punching block (303) are both arc-shaped. The punching block (303) is located on a side of the side block (108) close to the buffer plate (204). The cylinder (301) is located above the main housing (101). The slider (307) is located on a side of the punching block (303) close to the side block (108). The slider (307) is slidably connected to the first limiting groove (109) via a limiting block (308) on the side, and a plurality of buffer plates (204) are located below the punching block (303) and the slider (307).

8. The continuous punching device for curved surface forming of medium and thick plates according to claim 6, characterized in that: The main body mechanism (4) comprises a medium-thick plate (401), a plurality of rollers (402) are rotatably connected inside the main body shell (101), two adjustment grooves (403) are provided on the side of the main body shell (101), a discharge groove (404) is provided on a side of the main body shell (101) close to the adjustment groove (403), the rollers (402) are slidably connected to the adjustment groove (403), and the medium-thick plate (401) and the discharge groove (404) are both Located between the plurality of rollers (402), the medium-thick plate (401) is slidably connected to the inner wall of the main shell (101), the top and bottom of the medium-thick plate (401) are respectively abutted against the plurality of rollers (402), the size of the discharge trough (404) is larger than the size of the medium-thick plate (401), and the roller (402) located inside the adjustment groove (403) is directly elastically connected to the inner wall of the adjustment groove (403) via a telescopic rod spring (405).

9. The continuous punching device for curved surface forming of medium and thick plates according to claim 8, characterized in that: A discharge mechanism (5) is arranged above the positioning mechanism (1), and the discharge mechanism (5) comprises a first air pumping chamber (501) and an air bag (508); a second piston rod (502) is slidably connected to the interior of the first air pumping chamber (501); a connecting plate (503) is fixedly connected to the top of the second piston rod (502); a vent hole (504) is provided on the top of the main shell (101); a second air pumping chamber (505) is arranged on the side of the main shell (101) away from the punching block (303); a push plate (506) is slidably connected to the interior of the second air pumping chamber (505); an air supply pipe (507) is arranged on the side of the second air pumping chamber (505) away from the push plate (506); the top of the connecting plate (503) abuts against the air bag (508); a fourth spring (509) is fixedly connected to the interior of the air bag (508).

10. The continuous punching device for curved surface forming of medium and thick plates according to claim 9, characterized in that: The bottom of the connecting plate (503) is fixedly connected to the top of the punching block (303), the inner wall of the airbag (508) is elastically connected to the inner wall of the main shell (101) via a fourth spring (509), the interior of the airbag (508) is communicated with the second air pumping chamber (505) via an air pipe (507), the push plate (506) passes through the inner wall of the second air pumping chamber (505) and extends to the interior of the second cavity (106), the side of the push plate (506) away from the second air pumping chamber (505) is abutted against the side block (108), and the interior of the first air pumping chamber (501) is communicated with the interior of the second cavity (106) via the air vent (504).

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