Universal precise bending forming machine tool for thick plates and thin plates

Abstract

The invention relates to the technical field of bending forming machines, in particular to a thick plate and thin plate universal type precise bending forming machine tool which comprises an operation table, a forming piece, a guide frame and a downward pressing piece, the forming piece is installed in the center of the table top of the operation table, and a forming block in the forming piece can be rapidly replaced. The guide frames are installed on the two sides of the forming part and used for moving the plate, the downward pressing part is installed at the top end of the forming part, the linkage mechanism operates along with the downward pressing part to conduct locking to avoid deviation, and the regulation and control mechanism is installed at the left end of the guide frame on the left side. The adjusting and controlling mechanism adjusts the pressure of the downward pressing piece according to the thickness of the plate to conduct adaptive bending, through the design, the forming block which is rapidly installed facilitates adjustment of the plates with different thicknesses and the bending angle, the downward pressing force of the downward pressing piece can be preset through the connected adjusting and controlling piece according to the thickness of the conveyed plate through the arranged filling frame, and therefore the plate can be bent in a matched mode. And therefore, accurate bending can be conveniently carried out on the plates with different thicknesses, and the efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bending forming machines, in particular to a universal precise bending forming machine for thick and thin plates. BACKGROUND

[0002] In many fields such as aerospace, engineering machinery, transportation, wind power generation, agricultural machinery, military and civilian hardware, plate bending forming is one of the core processing procedures, and the thickness span of the plate involved is extremely large, from several millimeters of thin plate to dozens of millimeters of thick plate, which has extensive application requirements. As the key equipment for realizing plate bending forming, the performance of the bending machine directly determines the processing precision, production efficiency and manufacturing cost of the workpiece. With the increasing demand for lightweight, high-strength and high-precision products in various industries, higher challenges are put forward to the universality, precision and intelligence level of the bending machine. For example, the publication number CN118455329B discloses a vertical machine tool for sheet metal part machining, which includes a machine tool assembly, and a gear assembly is slidably connected to the machine tool assembly. The vertical machine tool for sheet metal part machining solves the technical problem that the existing vertical machine tool for sheet metal part machining needs to frequently combine and replace the mold pressing piece and the forming piece according to the bending degree of the sheet metal part plate during use. The entire use process cannot simultaneously replace the mold pressing piece and the forming piece of different models in the vertical machine tool for sheet metal part machining, which reduces the application range of the entire vertical machine tool for sheet metal part machining. The mold pressing piece and the forming piece can be simultaneously switched, avoiding the need to frequently replace the mold pressing piece and the forming piece according to the bending degree of the sheet metal part plate during the bending process, and improving the application range of the entire vertical machine tool for sheet metal part machining. At present, the existing technology on the market has the limitation of specificity, either focusing on thick plate bending or adapting to thin plate processing, making it difficult to achieve efficient and universal processing of thick and thin plates. The need to frequently replace molds and adjust pressure results in extremely low replacement efficiency, which seriously affects the continuity of production. At the same time, the existing device equipped with a simple mold storage and replacement mechanism also has problems such as complex structure, high cost, limited adaptability, etc., and cannot realize rapid switching processing of multiple thickness plates. SUMMARY

[0003] The purpose of this invention is to provide a universal precision bending and forming machine tool for both thick and thin plates, in order to solve the problems mentioned in the background art. Currently, most bending machines on the market have limitations in their specific applications, either focusing on thick plate bending or adapting to thin plate processing. It is difficult to achieve efficient universal processing of thick and thin plates, requiring frequent mold changes and pressure adjustments, resulting in extremely low changeover efficiency and seriously affecting production continuity. At the same time, existing devices, even with simple mold storage and changing mechanisms, also suffer from problems such as complex structure, high cost, and limited adaptability, making it impossible to quickly switch between processing various thickness plates.

[0004] To achieve the above objectives, the present invention provides the following technical solution: It includes an operating table, a forming component, a guide frame, and a pressing component. The forming component is installed at the center of the operating table surface. The forming block in the forming component can be quickly replaced. Guide frames are installed on both sides of the forming component for moving the sheet material. A pressing component is installed at the top of the forming component. The pressing component descends vertically to bend the sheet material. A linkage mechanism is installed on the right side of the forming component. The linkage mechanism follows the movement of the pressing component and locks to prevent deviation. An adjustment mechanism is installed at the left end of the guide frame on the left side. The adjustment mechanism adjusts the pressure of the pressing component according to the thickness of the sheet material to adapt to the bending.

[0005] Preferably, the molded part includes a positioning frame and a molding block. The molding block is inserted longitudinally at the center of the positioning frame. The angle at the top of the molding block is the bending angle of the sheet metal. A side groove is opened on the bottom right side of the positioning frame. A stop block is fixed at the rear end of the positioning frame to limit the molding block. Two sets of positioning rods are fixed laterally at the center of the positioning frame. The molding block is inserted longitudinally in the two sets of positioning rods.

[0006] Preferably, the pressing component includes a main hydraulic cylinder, a limiting frame, and a pressing plate. The limiting frame is fixed to the bottom end of the main hydraulic cylinder and is fixed to the center of the pressing plate. A pressing block is fixed to the bottom center of the pressing plate and is perpendicular to the forming block. A left hydraulic cylinder and a right hydraulic cylinder are fixed to the left and right sides of the main hydraulic cylinder, respectively. Pushing blocks are fixed to the bottom ends of the left and right hydraulic cylinders in a mirror image. The bottom ends of the two sets of pushing blocks are in contact with the top end of the pressing plate. The top ends of the main hydraulic cylinder, the left hydraulic cylinder, and the right hydraulic cylinder are all electrically mounted on the operating table.

[0007] Preferably, the linkage mechanism includes a limiting component and a rotating component. The rotating component is installed on the rear wall of the operating table, and the limiting component is installed at the bottom end of the rotating component. The rotating component drives the limiting component to rotate and limit the forming block. The limiting component consists of a steering plate and a fixed ring. The rear end of the steering plate is fixedly provided with a fixed ring, and the bottom end of the steering plate is suspended on the operating table. The thickness of the steering plate is less than the thickness of the side groove.

[0008] Preferably, the rotating component includes a guide rail, a rack plate, a gear, and a rotating shaft. The guide rail is installed on the rear wall of the operating table. The front end of the guide rail is provided with a rack plate for lateral sliding. The front end of the rack plate meshes with the gear. The rotating shaft is fixed at the center of the gear. The bottom end of the rotating shaft is fixed at the center of the fixed ring. A push plate is fixed at the left end of the rack plate. The left end of the push plate contacts the right side of the adjusting plate. The adjusting plate is fixed at the bottom end of the connecting plate. The front end of the connecting plate is fixed at the rear end of the limiting frame.

[0009] Preferably, the push plate has side plates fixed at both the front and rear of its left end, and a roller is inserted into the center of the two sets of side plates. The left end of the roller contacts the right wall of the adjustment plate, and the right wall of the adjustment plate has a beveled surface from the upper right to the lower left.

[0010] Preferably, the control mechanism includes a packing frame and an adjustment control, the top of the packing frame is in contact with the adjustment control, the packing frame is installed on the left guide frame, and the position of the packing frame is at the plate feeding end.

[0011] Preferably, the packing frame includes vertical blocks, fixed plates, springs, and sliding rods. Two sets of vertical blocks are respectively fixed to the front and rear walls of the left end of the guide frame. Vertical grooves are opened inside the two sets of vertical blocks. Fixed plates are fixed to the top inner side of the two sets of vertical blocks. Springs are installed at the bottom ends of the two sets of fixed plates. The front and rear ends of the sliding rod move vertically up and down within the two sets of grooves. The bottom ends of the two sets of springs are connected to the sliding rod. A curved surface is opened at the bottom end of the sliding rod. A T-shaped block is fixed at the center of the top end of the sliding rod.

[0012] Preferably, the adjustment control includes three sets of fixed frames and three sets of controllers. The controller is installed on the bottom front end of each set of fixed frames. The three sets of controllers are electrically connected to the corresponding main hydraulic cylinder, left hydraulic cylinder and right hydraulic cylinder. The bottom ends of the three sets of controllers become shorter from left to right.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. By setting up a quick-installation forming block, which works in conjunction with the downward pressing component at the top, it is easy to adjust the sheet metal of different thicknesses and bending angles. With a filling frame, the downward pressure of the pressing component can be preset according to the thickness of the conveyed sheet metal and then through the connected adjustment control, which facilitates precise bending of sheet metal of different thicknesses and improves efficiency. 2. By setting the main hydraulic cylinder, left hydraulic cylinder and right hydraulic cylinder, the lower pressure plate on the bottom side can be pressed down synchronously, or pressed down in combination, so as to give the lower pressure plate at the bottom of the main hydraulic cylinder a downward pressure that is suitable for the sheet material, thereby improving the bending efficiency and quality of the sheet material. The limiting parts and rotating parts can be linked when the pressing part is running, thereby driving the limiting parts to limit the forming frame, preventing deviation during pressing, and improving the stability of sheet bending. 3. The slide rod with a curved surface at the bottom of the filling frame rises according to the thickness of the sheet metal. When the slide rod rises, it contacts the controller through the T-shaped block fixed at the top, thereby setting the pressure on the lower pressing component. After the sheet metal passes through the filling frame, the slide rod returns to its original position under the action of the spring. This design saves time for manual pressure adjustment and reduces labor burden. Three sets of controllers are electrically connected to the main hydraulic cylinder, the left hydraulic cylinder and the right hydraulic cylinder respectively, so the greater the thickness of the sheet metal, the greater the downward pressure of the lower pressing component, thereby achieving precise bending of the sheet metal. Attached image description: To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a front view schematic diagram of the structure of the present invention; Figure 2 This is a frontal, bottom-view schematic diagram of the present invention; Figure 3 This is a top view of the structure of the present invention; Figure 4 This is a top view of the molded part of the present invention; Figure 5 This is a side view of the pressing component of the present invention; Figure 6 This is an enlarged view of the packing frame structure of the present invention; Figure 7 This is an enlarged view of the front of the adjustment control of the present invention; Figure 8 This is an enlarged schematic diagram of the rotating component of the present invention; Figure 9 This is a partially enlarged schematic diagram of the push plate of the present invention.

[0015] In the diagram: 1. Operating table; 2. Molded part; 21. Positioning frame; 211. Side groove; 212. Stop block; 213. Positioning rod; 22. Molded block; 3. Guide frame; 4. Pressing part; 41. Main hydraulic cylinder; 42. Limiting frame; 43. Pressing plate; 44. Pressing block; 45. Left hydraulic cylinder; 46. Right hydraulic cylinder; 47. Pushing block; 5. Linkage mechanism; 51. Limiting part; 511. Steering plate; 512. Fixed ring; 52. Rotating part; 521. Guide rail; 522. Rack plate; 523. Gear; 524. Rotating shaft; 525. Push plate; 5251. Side plate; 5252. Roller; 526. Adjusting plate; 5261. Beveled surface; 527. Connecting plate; 6. Control mechanism; 61. Packing frame; 611. Vertical block; 612. Slide groove; 613. Fixing plate; 614. Spring; 615. Slide rod; 616. Curved surface; 617. T-block; 62. Adjustment control; 621. Fixing frame; 622. Controller. Detailed implementation method: The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] Please see Figures 1-9 An embodiment of the present invention includes an operating table 1, a forming part 2, a guide frame 3, and a pressing part 4. The forming part 2 is installed at the center of the operating table 1. The forming block 22 in the forming part 2 can be quickly replaced. Guide frames 3 are installed on both sides of the forming part 2 for moving the sheet material. The pressing part 4 is installed at the top of the forming part 2. The pressing part 4 descends vertically to bend the sheet material. A linkage mechanism 5 is installed on the right side of the forming part 2. The linkage mechanism 5 follows the movement of the pressing part 4 to lock and prevent deviation. An adjustment mechanism 6 is installed at the left end of the left guide frame 3. The adjustment mechanism 6 adjusts the pressure of the pressing part 4 according to the thickness of the sheet material to adapt to the bending.

[0017] according to Figure 3 and Figure 4 The molded part 2 shown includes a positioning frame 21 and a molding block 22. The molding block 22 is inserted longitudinally at the center of the positioning frame 21. The angle at the top of the molding block 22 is the bending angle of the sheet metal. A side groove 211 is opened on the bottom right side of the positioning frame 21. A stop block 212 is fixed at the rear end of the positioning frame 21 to limit the molding block 22. Two sets of positioning rods 213 are fixed laterally at the center of the positioning frame 21. The molding block 22 is inserted longitudinally in the two sets of positioning rods 213.

[0018] In the above design, the forming block can be slidably inserted into the positioning frame. With this design, only the forming block needs to be replaced to adapt and bend different materials, without the need to replace the lower pressure block, further saving time and reducing labor burden.

[0019] according to Figure 5 The pressing component 4 shown includes a main hydraulic cylinder 41, a limiting frame 42, and a pressing plate 43. The limiting frame 42 is fixed at the bottom end of the main hydraulic cylinder 41 and is fixed at the center of the pressing plate 43. A pressing block 44 is fixed at the bottom center of the pressing plate 43 and is perpendicular to the forming block 22. A left hydraulic cylinder 45 and a right hydraulic cylinder 46 are fixed on the left and right sides of the main hydraulic cylinder 41, respectively. Pushing blocks 47 are fixed at the bottom ends of the left hydraulic cylinder 45 and the right hydraulic cylinder 46. The bottom ends of the two sets of pushing blocks 47 are in contact with the top end of the pressing plate 43. The top ends of the main hydraulic cylinder 41, the left hydraulic cylinder 45, and the right hydraulic cylinder 46 are all electrically mounted on the operating table 1.

[0020] Through the above design, the main hydraulic cylinder can drive the limit frame and the lower pressure plate to descend vertically, while the left and right hydraulic cylinders on both sides can descend synchronously or individually with the main hydraulic cylinder through the push block fixed at the bottom, thereby increasing the pressure of the lower pressure plate and the lower pressure block and thus adjusting the pressure of plates of different thicknesses, thereby improving efficiency.

[0021] according to Figure 4 The linkage mechanism 5 shown includes a limiting member 51 and a rotating member 52. The rotating member 52 is installed on the rear wall of the operating table 1. The limiting member 51 is installed at the bottom end of the rotating member 52. The rotating member 52 drives the limiting member 51 to rotate and limit the forming block 22. The limiting member 51 is composed of a turning plate 511 and a fixing ring 512. The rear end of the turning plate 511 is fixed with the fixing ring 512. The bottom end of the turning plate 511 is suspended on the operating table 1. The thickness of the turning plate 511 is less than the thickness of the side groove 211.

[0022] The steering plate, with its suspended and L-shaped design, can rotate within a small range under the drive of the rotating component. When the pressing component is pressed down, the steering plate can rotate to contact the forming block to prevent deviation. When the pressing component rises, the steering plate can return to its original position to facilitate the replacement of the forming block. It can be used in conjunction with the other components, making it convenient and quick.

[0023] according to Figure 8The rotating component 52 shown includes a guide rail 521, a rack plate 522, a gear 523, and a rotating shaft 524. The guide rail 521 is installed on the rear wall of the operating table 1. The front end of the guide rail 521 is provided with a rack plate 522 for lateral sliding. The front end of the rack plate 522 meshes with the gear 523. The rotating shaft 524 is fixed at the center of the gear 523. The bottom end of the rotating shaft 524 is fixed at the center of the fixed ring 512. A push plate 525 is fixed at the left end of the rack plate 522. The left end of the push plate 525 contacts the right side of the adjusting plate 526. The adjusting plate 526 is fixed at the bottom end of the connecting plate 527. The front end of the connecting plate 527 is fixed at the rear end of the limiting frame 42.

[0024] This design facilitates synchronous use of the connecting plate and adjusting plate with the pressing component, thereby improving the applicability of the device and reducing the burden of manual operation. The long spring hidden on the right side of the rack plate and inside the guide rail facilitates the reset of the rack plate after use, making the next operation easier.

[0025] according to Figure 9 The push plate 525 shown has side plates 5251 fixed at both the front and rear of its left end. A roller 5252 is inserted into the center of the two sets of side plates 5251. The left end of the roller 5252 contacts the right wall of the adjusting plate 526. The right wall of the adjusting plate 526 has a beveled surface 5261 from the upper right to the lower left.

[0026] When the adjusting plate with the oblique cut surface in the above design descends to the limit position, it pushes the rack plate to move, thereby engaging the gear to rotate. The distance the rack plate moves is one-quarter of the rotation of the gear, and the rotation range of the bottom steering plate is ninety degrees, which is one-quarter of the rotation of the gear.

[0027] According to the appendix Figure 6 The control mechanism 6 shown includes a packing frame 61 and an adjustment control 62. The top of the packing frame 61 contacts the adjustment control 62. The packing frame 61 is installed on the left guide frame 3. The position of the packing frame 61 is the feeding end of the plate. The packing frame 61 includes vertical blocks 611, fixed plates 613, springs 614 and slide rods 615. Two sets of vertical blocks 611 are respectively fixed to the front and rear walls of the left end of the guide frame 3. The interior of the two sets of vertical blocks 611 has vertically opened sliding grooves 612. The top of the inner side of the two sets of vertical blocks 611 is fixed with fixed plates 613. The bottom of the two sets of fixed plates 613 is installed with springs 614. The front and rear ends of the slide rod 615 move vertically up and down in the two sets of sliding grooves 612. The bottom of the two sets of springs 614 is connected to the slide rod 615. The bottom of the slide rod 615 has a curved surface 616. The center of the top of the slide rod 615 is fixed with a T-shaped block 617.

[0028] The curved surface at the bottom of the slide bar in the above design facilitates the slide bar's upward movement after contact with the plate. The maximum distance the slide bar can rise is equal to the thickness of the plate. By raising the slide bar, the pressure can be adjusted by contacting the control panel at the top T-shaped block.

[0029] according to Figure 7 The control unit 62 includes three sets of fixing brackets 621 and three sets of controllers 622. The controllers 622 are installed on the bottom front end of each fixing bracket 621. The three sets of controllers 622 are electrically connected to the corresponding main hydraulic cylinder 41, left hydraulic cylinder 45 and right hydraulic cylinder 46. The bottom ends of the three sets of controllers 622 become shorter from left to right.

[0030] In the above design, the bottom of the three sets of controllers becomes shorter from left to right. The left controller can preset the main hydraulic cylinder, the central controller controls the preset operation of the left hydraulic cylinder, and the right controller controls the preset operation of the right hydraulic cylinder. After the preset operation, the pressing component can be started and operated through the preset hydraulic cylinder to achieve precise pressing, thereby bending the sheet metal.

[0031] Working principle: During operation, the matching forming block 22 is first pushed into the positioning frame 21 by two sets of positioning rods 213. After the rear end of the forming block 22 contacts the stop block 212 for side limiting, the sheet material to be bent is then pushed in from the left guide frame 3. When the sheet material is pushed in, the entry end of the sheet material contacts the slide rod 615. Under the action of the curved surface 616, the slide rod 615 rises to a height consistent with the thickness of the sheet material. The rising slide rod 615 can then contact the top controller 622 through the T-shaped block 617 at the top. The thicker the material, the more T-blocks 617 contact controllers 622. Controllers 622 are electrically connected to the corresponding main hydraulic cylinder, left hydraulic cylinder, and right hydraulic cylinder to enable preset start-up. When the material passes through, the pressure on the pressing member 4 is preset. After the material passes through, the slide rod 615 rebounds under the action of the spring 614, returning to its original position. When the material moves to the upper side of the forming block 22, the pressing member 4 can control the main hydraulic cylinder 41, left hydraulic cylinder 45, and right hydraulic cylinder 46 through the preset downward pressure. The combined system pushes the bottom limiting frame 42 and the lower pressure plate 43, and then bends the sheet metal through the pushing block 47 and the forming block 22. When the limiting frame 42 descends, it can drive the connecting plate 527 fixed at the rear end to descend. The descent of the connecting plate 527 can drive the fixed adjusting plate 526 to descend. The descent of the adjusting plate 526 can push the right pushing plate 525, which drives the rack plate 522 to move to the right within the guide rail 521. When the rack plate 522 moves, it can mesh with the gear 523 to rotate. Rotating 523 will cause the rotating shaft 524 inserted on the operating table 1 to rotate. Rotating the rotating shaft 524 will cause the bottom steering plate to flip to the left, completing the limiting of the forming block 22. After the plate is bent, the lower pressure piece 4 rises, and the rack plate 522 returns to its original position under the action of the long spring installed inside the guide rail 521. At the same time, the steering plate 511 flips to the inside of the right guide frame 3, which facilitates the bending of the lower plate and also facilitates the replacement of the appropriate forming block 22 according to the plate requirements. The operation ends here.

[0032] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Those skilled in the art can readily implement the present invention based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the present invention, utilizing the disclosed technical content, are equivalent embodiments of the present invention. Furthermore, any modifications, alterations, or variations made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the present invention.

Claims

1. A general-purpose precision bending and forming machine tool for both thick and thin plates, comprising an operating table (1), a forming part (2), a guide frame (3), and a pressing part (4), characterized in that: The forming part (2) is installed at the center of the table surface of the operating table (1). The forming block (22) in the forming part (2) can be quickly replaced. Guide frames (3) are installed on both sides of the forming part (2) for moving the sheet material. A pressing part (4) is installed at the top of the forming part (2). The pressing part (4) descends vertically to bend the sheet material. A linkage mechanism (5) is installed on the right side of the forming part (2). The linkage mechanism (5) follows the pressing part (4) to lock and prevent deviation. An adjustment mechanism (6) is installed at the left end of the guide frame (3) on the left side. The adjustment mechanism (6) adjusts the pressure of the pressing part (4) according to the thickness of the sheet material to adapt to the bending.

2. The universal precision bending and forming machine tool for thick and thin plates according to claim 1, characterized in that: The molded part (2) includes a positioning frame (21) and a molding block (22). The molding block (22) is inserted longitudinally at the center of the positioning frame (21). The angle at the top of the molding block (22) is the bending angle of the sheet metal. A side groove (211) is opened on the bottom right side of the positioning frame (21). A stop block (212) is fixed at the rear end of the positioning frame (21). The stop block (212) limits the molding block (22). Two sets of positioning rods (213) are fixed laterally at the center of the positioning frame (21). The molding block (22) is inserted longitudinally in the two sets of positioning rods (213).

3. The universal precision bending and forming machine tool for thick and thin plates according to claim 1, characterized in that: The pressing component (4) includes a main hydraulic cylinder (41), a limiting frame (42), and a pressing plate (43). The limiting frame (42) is fixed at the bottom of the main hydraulic cylinder (41). The limiting frame (42) is fixed at the center of the pressing plate (43). A pressing block (44) is fixed at the bottom center of the pressing plate (43). The pressing block (44) is perpendicular to the forming block (22). A left hydraulic cylinder (45) and a right hydraulic cylinder (46) are fixed on the left and right sides of the main hydraulic cylinder (41), respectively. Pushing blocks (47) are fixed at the bottom of the left hydraulic cylinder (45) and the right hydraulic cylinder (46) in a mirror image. The bottom ends of the two sets of pushing blocks (47) are in contact with the top of the pressing plate (43). The tops of the main hydraulic cylinder (41), the left hydraulic cylinder (45), and the right hydraulic cylinder (46) are all electrically mounted on the operating table (1).

4. The universal precision bending and forming machine tool for thick and thin plates according to claim 1, characterized in that: The linkage mechanism (5) includes a limiting member (51) and a rotating member (52). The rotating member (52) is installed on the rear wall of the operating table (1). The limiting member (51) is installed at the bottom end of the rotating member (52). The rotating member (52) drives the limiting member (51) to rotate and limit the forming block (22). The limiting member (51) is composed of a turning plate (511) and a fixed ring (512). The fixed ring (512) is fixed at the rear end of the turning plate (511). The bottom end of the turning plate (511) is suspended on the operating table (1). The thickness of the turning plate (511) is less than the thickness of the side groove (211).

5. The universal precision bending and forming machine tool for thick and thin plates according to claim 4, characterized in that: The rotating component (52) includes a guide rail (521), a rack plate (522), a gear (523), and a rotating shaft (524). The guide rail (521) is installed on the rear wall of the operating table (1). The front end of the guide rail (521) is provided with a rack plate (522) for lateral sliding. The front end of the rack plate (522) meshes with the gear (523). The rotating shaft (524) is fixed at the center of the gear (523). The bottom end of the rotating shaft (524) is fixed at the center of the fixed ring (512). The left end of the rack plate (522) is fixed with a push plate (525). The left end of the push plate (525) contacts the right side of the adjusting plate (526). The adjusting plate (526) is fixed at the bottom end of the connecting plate (527). The front end of the connecting plate (527) is fixed at the rear end of the limiting frame (42).

6. The universal precision bending and forming machine tool for thick and thin plates according to claim 5, characterized in that: The push plate (525) has side plates (5251) fixed at both the front and rear of its left end. A roller (5252) is inserted in the center of the two sets of side plates (5251). The left end of the roller (5252) contacts the right wall of the adjustment plate (526). The right wall of the adjustment plate (526) has a beveled surface (5261) from the upper right to the lower left.

7. The universal precision bending and forming machine tool for thick and thin plates according to claim 1, characterized in that: The control mechanism (6) includes a packing frame (61) and an adjustment control (62). The top of the packing frame (61) is in contact with the adjustment control (62). The packing frame (61) is installed on the left guide frame (3). The position of the packing frame (61) is the plate feeding end.

8. A general-purpose precision bending and forming machine tool for both thick and thin plates according to claim 7, characterized in that: The packing frame (61) includes vertical blocks (611), fixing plates (613), springs (614) and sliding rods (615). Two sets of vertical blocks (611) are respectively fixed on the front and rear walls of the left end of the guide frame (3). The interior of the two sets of vertical blocks (611) is vertically opened with sliding grooves (612). The top inner side of the two sets of vertical blocks (611) is fixed with fixing plates (613). The bottom end of the two sets of fixing plates (613) is installed with springs (614). The front and rear ends of the sliding rod (615) move vertically up and down in the two sets of sliding grooves (612). The bottom end of the two sets of springs (614) is connected to the sliding rod (615). The bottom end of the sliding rod (615) is opened with a curved surface (616). The top center of the sliding rod (615) is fixed with a T-shaped block (617).

9. A general-purpose precision bending and forming machine tool for both thick and thin plates according to claim 7, characterized in that: The control unit (62) includes three sets of fixing frames (621) and three sets of controllers (622). The controller (622) is installed on the bottom front end of each fixing frame (621). The three sets of controllers (622) are electrically connected to the corresponding main hydraulic cylinder (41), left hydraulic cylinder (45) and right hydraulic cylinder (46). The bottom ends of the three sets of controllers (622) become shorter from left to right.

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