Electro-hydraulic servo numerical control hydraulic plate bending machine

Abstract

The utility model relates to the technical field of bending machines, and discloses an electro-hydraulic servo numerical control hydraulic plate bending machine which comprises an equipment body and further comprises a pressurizing mechanism, a first mounting mechanism, an adjusting mechanism, an upper die mechanism, a lower die mechanism and a second mounting mechanism, and the inner wall of the top end of the equipment body is fixedly connected with the top end of the pressurizing mechanism; the telescopic column moves up and down along the inner wall of the stand column to enable the bottom end of the touch switch and the top end of the installation plate to keep a proper distance, a plate needing to be bent is placed at the top end of the lower die mechanism, the hydraulic telescopic rod of the device is started to push the top plate to move downwards, the upper die mechanism applies pressure to the plate, and the upper die mechanism is matched with the lower die mechanism for bending. The upper die mechanism makes contact with the plate to enable the pressure spring to contract and generate pressure on the mounting plate till the top of the mounting plate makes contact with the touch switch, the touch switch controls the hydraulic telescopic rod to automatically stop, bending is completed, the bending quality is improved, and the plate is prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of bending machines, and more specifically to an electro-hydraulic servo numerically controlled hydraulic sheet metal bending machine. Background Art

[0002] A bending machine is a mechanical device used for processing metals or other materials. Its main function is to bend flat materials into the required shapes, playing an important role in the manufacturing industry, enabling efficient production and processing. They are widely used in industries such as automobile manufacturing, aerospace, construction, and electronic equipment manufacturing. There are various types of bending machines. Among them, the electro-hydraulic servo numerically controlled hydraulic sheet metal bending machine is a device for processing metal sheet materials. It combines electro-hydraulic servo technology and numerical control technology, enabling high-precision and high-efficiency sheet metal bending processing.

[0003] Deficiencies of the prior art: However, when in use, it is impossible to flexibly adjust the pressure during bending according to the material properties of the sheet, which is likely to cause damage to the sheet. To meet the usage requirements and process the sheet into creases of different specifications, the mold needs to be replaced. The existing electro-hydraulic servo numerically controlled hydraulic sheet metal bending machine replaces the mold mainly through bolts during use, which is time-consuming and laborious during operation. Summary of the Utility Model

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides an electro-hydraulic servo numerically controlled hydraulic sheet metal bending machine to solve the problems existing in the above-mentioned background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: An electro-hydraulic servo numerically controlled hydraulic sheet metal bending machine includes a device main body, and also includes: a pressurizing mechanism, a first installation mechanism, an adjusting mechanism, an upper die mechanism, a lower die mechanism, and a second installation mechanism. The inner wall of the top end of the device main body is fixedly connected to the top end of the pressurizing mechanism. The bottom end of the pressurizing mechanism is fixedly connected to the top end of the first installation mechanism. The side inner wall of the first installation mechanism is movably connected to the side of the upper die mechanism. The bottom end of the adjusting mechanism is fixedly connected to the top end of the pressurizing mechanism. The side of the lower die mechanism is movably connected to the side inner wall of the second installation mechanism. The device main body includes a workbench, the top end of the workbench is fixedly connected to the bottom end of the second installation mechanism, and a top shell is fixedly connected to the top end of the workbench. The pressurizing mechanism includes a top plate, a hydraulic telescopic rod is fixedly connected to the top end of the top plate, the top end of the hydraulic telescopic rod is fixedly connected to the inner wall of the top end of the top shell, and a pressure spring is fixedly connected to the bottom end of the top plate. The first installation mechanism includes a mounting plate, the top end of the mounting plate is fixedly connected to the bottom end of the pressure spring. The adjusting mechanism includes a column, a telescopic column is movably connected to the side inner wall of the column, and a touch switch is movably connected to the bottom end of the telescopic column.

[0006] Further, a limiting hole is provided at the top end of the top plate, a limiting pin is fixedly connected to the top end of the mounting plate, the side surface of the limiting pin is movably connected to the side surface of the limiting hole, and the limiting pin is of a T-shaped structure.

[0007] Further, a stepping motor is fixedly connected to the top end of the column, a lead screw is movably sleeved on the inner wall of the top end of the column, and the side surface of the lead screw is threadedly connected to the inner wall of the side surface of the telescopic column.

[0008] Further, a third mounting hole is provided at the bottom end of the telescopic column, a buffer spring is fixedly connected to the top end of the third mounting hole, and the bottom end of the buffer spring is fixedly connected to the top end of the touch switch.

[0009] Further, the structure of the first mounting mechanism is the same as that of the second mounting mechanism. An installation groove is provided at the bottom end of the mounting plate. The upper die mechanism includes an upper die main body. A mounting seat is fixedly connected to the top end of the upper die main body. The side surface of the mounting seat is movably connected to the side surface of the installation groove. A second mounting hole is provided on the side surface of the installation groove. A return spring is fixedly connected to the side surface of the second mounting hole. A fixing pin is fixedly connected to the side surface of the return spring. A fixing hole is provided on the side surface of the mounting seat corresponding to the position of the fixing pin.

[0010] Further, a first mounting hole is provided on the side surface of the second mounting hole. An electromagnet is fixedly connected to the side surface of the first mounting hole. A connecting rod is fixedly connected to the side surface of the fixing pin. An iron sheet is fixedly connected to the side surface of the connecting rod.

[0011] Further, a positioning block is provided on the side surface of the fixing pin. A positioning groove is provided on the side surface of the mounting seat corresponding to the position of the positioning block. The side surface of the positioning block is movably connected to the positioning groove. An inclined surface is provided on the side surface of the fixing pin.

[0012] The technical effects and advantages of the present utility model:

[0013] 1. In the present utility model, the telescopic column moves up and down along the inner wall of the column to keep a proper distance between the bottom end of the touch switch and the top end of the mounting plate. The sheet material to be bent is placed on the top end of the lower die mechanism. The equipment is started, and the hydraulic telescopic rod pushes the top plate downward to apply pressure to the sheet material by the upper die mechanism, and cooperates with the lower die mechanism for bending. When the upper die mechanism contacts the sheet material, the pressure spring contracts and generates pressure on the mounting plate until the top of the mounting plate contacts the touch switch. The touch switch controls the hydraulic telescopic rod to stop automatically, and the bending is completed. The distance between the touch switch and the mounting plate is the deformable amount of the pressure spring, which is the pressure generated by the deformation of the pressure spring, and is the pressure size when the upper die mechanism and the lower die mechanism cooperate to the sheet material during bending, which is beneficial to improving the bending quality.

[0014] 2. The utility model generates magnetic force by energizing the electromagnet, so that the electromagnet generates suction force on the iron sheet, causing the connecting rod to drive the fixing pin out of the fixing hole and retract into the second installation hole. Then, the old upper die mechanism can be taken out. Select a new upper die mechanism, insert the mounting seat into the installation groove, and insert the positioning block into the positioning groove to ensure that the fixing pin is aligned with the fixing hole. When the top end of the mounting seat contacts the inclined surface, the fixing pin retracts into the second installation hole. When the top end of the mounting seat contacts the top end of the installation groove, the return spring pushes the fixing pin to insert the fixing pin into the fixing hole to fix the upper die mechanism. Similarly, the supporting lower die mechanism can be replaced. The operation is simple, which is conducive to improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 is a schematic diagram of the structure of the pressurizing mechanism of the utility model;

[0017] Figure 3 is a schematic diagram of the structure of the adjusting mechanism of the utility model;

[0018] Figure 4 is a sectional structure schematic diagram of the adjusting mechanism of the utility model;

[0019] Figure 5 is a schematic diagram of the structure of the first installation mechanism of the utility model;

[0020] Figure 6 is an assembled sectional structure schematic diagram of the first installation mechanism and the upper die mechanism of the utility model.

[0021] Reference numerals are: 1, equipment main body; 101, workbench; 102, top shell; 2, pressurizing mechanism; 201, top plate; 202, hydraulic telescopic rod; 203, limit pin; 204, limit hole; 205, pressure spring; 3, first installation mechanism; 301, mounting plate; 302, installation groove; 303, positioning block; 304, fixing pin; 305, electromagnet; 306, first installation hole; 307, iron sheet; 308, return spring; 309, second installation hole; 310, inclined surface; 311, connecting rod; 4, adjusting mechanism; 401, column; 402, telescopic column; 403, touch switch; 404, stepping motor; 405, lead screw; 406, buffer spring; 407, third installation hole; 5, upper die mechanism; 501, upper die main body; 502, mounting seat; 503, fixing hole; 6, lower die mechanism; 7, second installation mechanism. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the present utility model. In addition, the forms of each structure described in the following embodiments are merely examples. A kind of electro-hydraulic servo numerically controlled hydraulic sheet metal bending machine related to the present utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

[0023] Referring to Figures 1 to 6 , the present utility model provides an electro-hydraulic servo numerically controlled hydraulic sheet metal bending machine, including a device main body 1, and further including: a pressurizing mechanism 2, a first installation mechanism 3, an adjusting mechanism 4, an upper die mechanism 5, a lower die mechanism 6, and a second installation mechanism 7. The inner wall of the top end of the device main body 1 is fixedly connected to the top end of the pressurizing mechanism 2. The bottom end of the pressurizing mechanism 2 is fixedly connected to the top end of the first installation mechanism 3. The inner wall of the side of the first installation mechanism 3 is movably connected to the side of the upper die mechanism 5. The bottom end of the adjusting mechanism 4 is fixedly connected to the top end of the pressurizing mechanism 2. The side of the lower die mechanism 6 is movably connected to the inner wall of the side of the second installation mechanism 7. The device main body 1 includes a workbench 101. The top end of the workbench 101 is fixedly connected to the bottom end of the second installation mechanism 7. The top end of the workbench 101 is fixedly connected with a top shell 102. The pressurizing mechanism 2 includes a top plate 201. The top end of the top plate 201 is fixedly connected with a hydraulic telescopic rod 202. The top end of the hydraulic telescopic rod 202 is fixedly connected to the inner wall of the top end of the top shell 102. The bottom end of the top plate 201 is fixedly connected with a pressure spring 205. The first installation mechanism 3 includes a mounting plate 301. The top end of the mounting plate 301 is fixedly connected to the bottom end of the pressure spring 205. The adjusting mechanism 4 includes a column 401. The inner wall of the side of the column 401 is movably connected with a telescopic column 402. The bottom end of the telescopic column 402 is movably connected with a touch switch 403. According to the use requirements, a suitable matching upper die mechanism 5 and lower die mechanism 6 are selected and respectively installed at the bottom end of the first installation mechanism 3 and the top end of the second installation mechanism 7. The telescopic column 402 moves up and down along the inner wall of the column 401 to keep a suitable distance between the bottom end of the touch switch 403 and the top end of the mounting plate 301. The sheet metal to be bent is placed on the top end of the lower die mechanism 6. The device is started, and the hydraulic telescopic rod 202 pushes the top plate 201 to move downward so that the upper die mechanism 5 applies pressure to the sheet metal and cooperates with the lower die mechanism 6 for bending. When the upper die mechanism 5 contacts the sheet metal, the pressure spring 205 contracts and generates pressure on the mounting plate 301 until the top of the mounting plate 301 contacts the touch switch 403. The touch switch 403 controls the hydraulic telescopic rod 202 to stop automatically, and the bending is completed. The distance between the touch switch 403 and the mounting plate 301 is the deformable amount of the pressure spring 205, which is the pressure generated by the deformation of the pressure spring 205 and is the pressure when the upper die mechanism 5 and the lower die mechanism 6 cooperate to bend the sheet metal.

[0024] Among them, a limiting hole 204 is opened at the top end of the top plate 201, a limiting pin 203 is fixedly connected to the top end of the mounting plate 301, the side surface of the limiting pin 203 is movably connected to the side surface of the limiting hole 204, the limiting pin 203 is of a T-shaped structure. When the compression spring 205 contracts, the limiting pin 203 slides along the side surface of the limiting hole 204, causing the mounting plate 301 to move in the vertical direction.

[0025] Among them, a stepping motor 404 is fixedly connected to the top end of the column 401, a lead screw 405 is movably sleeved on the inner wall of the top end of the column 401, the side surface of the lead screw 405 is threadedly connected to the inner wall of the side surface of the telescopic column 402, and the stepping motor 404 drives the lead screw 405 to rotate to drive the telescopic column 402 to move up and down along the inner wall of the side surface of the column 401 through the thread.

[0026] Among them, a third mounting hole 407 is opened at the bottom end of the telescopic column 402, a buffer spring 406 is fixedly connected to the top end of the third mounting hole 407, the bottom end of the buffer spring 406 is fixedly connected to the top end of the touch switch 403. When the touch switch 403 contacts the mounting plate 301, the buffer spring 406 contracts to buffer the touch switch 403. At the same time, the bottom end of the telescopic column 402 contacts the top end of the mounting plate 301 to limit the mounting plate 301.

[0027] Among them, the structure of the first mounting mechanism 3 is the same as that of the second mounting mechanism 7. An installation groove 302 is opened at the bottom end of the mounting plate 301. The upper die mechanism 5 includes an upper die main body 501. A mounting seat 502 is fixedly connected to the top end of the upper die main body 501. The side surface of the mounting seat 502 is movably connected to the side surface of the installation groove 302. A second mounting hole 309 is opened on the side surface of the installation groove 302. A return spring 308 is fixedly connected to the side surface of the second mounting hole 309. A fixing pin 304 is fixedly connected to the side surface of the return spring 308. A fixing hole 503 is opened at the corresponding position of the side surface of the mounting seat 502 for the fixing pin 304. The installation part of the lower die mechanism 6 has the same structure as the installation part of the upper die mechanism 5. When installing the upper die mechanism 5, insert the mounting seat 502 into the installation groove 302. The return spring 308 pushes the fixing pin 304 to make the fixing pin 304 insert into the fixing hole 503 to fix the upper die mechanism 5.

[0028] Among them, a first mounting hole 306 is opened on the side surface of the second mounting hole 309. An electromagnet 305 is fixedly connected to the side surface of the first mounting hole 306. When disassembling the upper die mechanism 5, the electromagnet 305 is energized to generate a magnetic force, so that the electromagnet 305 generates a suction force on the iron sheet 307, causing the connecting rod 311 to drive the fixing pin 304 to move out of the fixing hole 503 and retract into the second mounting hole 309, and then the upper die mechanism 5 can be taken out.

[0029] Among them, a positioning block 303 is provided on the side surface of the fixing pin 304, and a positioning groove is provided at the position corresponding to the positioning block 303 on the side surface of the mounting seat 502. The side surface of the positioning block 303 is movably connected to the positioning groove. A slope 310 is provided on the side surface of the fixing pin 304. When the mounting seat 502 is inserted into the mounting groove 302, the positioning block 303 is inserted into the positioning groove to ensure that the fixing pin 304 is aligned with the fixing hole 503. When the mounting seat 502 is inserted into the mounting groove 302, the top end of the mounting seat 502 contacts the slope 310, causing the fixing pin 304 to be received into the second mounting hole 309.

[0030] The working principle of the present utility model: Select a suitable and matching upper die mechanism 5 and lower die mechanism 6 according to the usage requirements. The electromagnet 305 is energized to generate a magnetic force, so that the electromagnet 305 generates a suction force on the iron sheet 307, causing the connecting rod 311 to drive the fixing pin 304 to move out of the fixing hole 503 and be received into the second mounting hole 309. Then the old upper die mechanism 5 can be taken out. Select a new upper die mechanism 5 and insert the mounting seat 502 into the mounting groove 302, so that the positioning block 303 is inserted into the positioning groove to ensure that the fixing pin 304 is aligned with the fixing hole 503. When the top end of the mounting seat 502 contacts the slope 310, the fixing pin 304 is received into the second mounting hole 309. When the top end of the mounting seat 502 contacts the top end of the mounting groove 302, the return spring 308 pushes the fixing pin 304 to insert the fixing pin 304 into the fixing hole 503 to fix the upper die mechanism 5. Similarly, the supporting lower die mechanism 6 is replaced. Start the stepping motor 404 to drive the lead screw 405 to rotate, and drive the telescopic column 402 to move up and down along the inner wall of the side surface of the column 401 through the thread, so that the bottom end of the touch switch 403 keeps an appropriate distance from the top end of the mounting plate 301. Start the equipment, the hydraulic telescopic rod 202 pushes the top plate 201 to move downward, so that the upper die mechanism 5 applies pressure to the sheet material and cooperates with the lower die mechanism 6 for bending. When the upper die mechanism 5 contacts the sheet material, the pressure spring 205 contracts and generates a pressure on the mounting plate 301 until the top of the mounting plate 301 contacts the touch switch 403. The touch switch 403 controls the hydraulic telescopic rod 202 to automatically stop, and the bending is completed.

[0031] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. An electro-hydraulic servo CNC hydraulic sheet metal bending machine, comprising a device body (1), characterized in that: Also includes: A pressurizing mechanism (2), a first mounting mechanism (3), an adjusting mechanism (4), an upper mold mechanism (5), a lower mold mechanism (6) and a second mounting mechanism (7), wherein the top inner wall of the equipment body (1) is fixedly connected to the top of the pressurizing mechanism (2), the bottom end of the pressurizing mechanism (2) is fixedly connected to the top of the first mounting mechanism (3), the side inner wall of the first mounting mechanism (3) is movably connected to the side of the upper mold mechanism (5), the bottom end of the adjusting mechanism (4) is fixedly connected to the top of the pressurizing mechanism (2), the side of the lower mold mechanism (6) is movably connected to the side inner wall of the second mounting mechanism (7), and the equipment body (1) comprises a workbench (101), the top of the workbench (101) is fixedly connected to the bottom of the second mounting mechanism (7), and the workbench (101) is fixedly connected to the bottom of the second mounting mechanism (7). The top of the workbench (101) is fixedly connected to a top shell (102); the pressurizing mechanism (2) comprises a top plate (201); the top of the top plate (201) is fixedly connected to a hydraulic telescopic rod (202); the top of the hydraulic telescopic rod (202) is fixedly connected to the top inner wall of the top shell (102); the bottom of the top plate (201) is fixedly connected to a pressure spring (205); the first mounting mechanism (3) comprises a mounting plate (301); the top of the mounting plate (301) is fixedly connected to the bottom end of the pressure spring (205); the adjusting mechanism (4) comprises a column (401); the inner wall of the side surface of the column (401) is movably connected to a telescopic column (402); the bottom end of the telescopic column (402) is movably connected to a touch switch (403).

2. The electro-hydraulic servo CNC hydraulic sheet metal bending machine according to claim 1, characterized in that: The top of the top plate (201) is provided with a limiting hole (204), the top of the mounting plate (301) is fixedly connected to a limiting pin (203), the side of the limiting pin (203) is movably connected to the side of the limiting hole (204), and the limiting pin (203) is a T-shaped structure.

3. The electro-hydraulic servo CNC hydraulic sheet metal bending machine according to claim 1, characterized in that: The top end of the column (401) is fixedly connected to a stepping motor (404), the inner wall of the top end of the column (401) is movably sleeved with a screw rod (405), and the side of the screw rod (405) is threadedly connected to the inner wall of the side of the telescopic column (402).

4. The electro-hydraulic servo CNC hydraulic sheet metal bending machine according to claim 1, characterized in that: A third mounting hole (407) is provided at the bottom end of the telescopic column (402), a buffer spring (406) is fixedly connected to the top end of the third mounting hole (407), and the bottom end of the buffer spring (406) is fixedly connected to the top end of the touch switch (403).

5. The electro-hydraulic servo CNC hydraulic sheet metal bending machine according to claim 1, characterized in that: The structure of the first mounting mechanism (3) is the same as that of the second mounting mechanism (7), the bottom end of the mounting plate (301) is provided with a mounting groove (302), the upper mold mechanism (5) comprises an upper mold body (501), the top end of the upper mold body (501) is fixedly connected with a mounting seat (502), the side of the mounting seat (502) is movably connected with the side of the mounting groove (302), the side of the mounting groove (302) is provided with a second mounting hole (309), the side of the second mounting hole (309) is fixedly connected with a return spring (308), the side of the return spring (308) is fixedly connected with a fixing pin (304), and the side of the mounting seat (502) is provided with a fixing hole (503) at a position corresponding to the fixing pin (304).

6. The electro-hydraulic servo CNC hydraulic sheet metal bending machine according to claim 5, characterized in that: A first mounting hole (306) is provided on the side of the second mounting hole (309); an electromagnet (305) is fixedly connected to the side of the first mounting hole (306); an electromagnet (305) is fixedly connected to the side of the electromagnet (305); a connecting rod (311) is fixedly connected to the side of the fixing pin (304); and an iron sheet (307) is fixedly connected to the side of the connecting rod (311).

7. The electro-hydraulic servo CNC hydraulic sheet metal bending machine according to claim 5, characterized in that: A positioning block (303) is provided on the side of the fixing pin (304), a positioning groove is provided on the side of the mounting seat (502) at a position corresponding to the positioning block (303), the side of the positioning block (303) is movably connected to the positioning groove, and an inclined surface (310) is provided on the side of the fixing pin (304).

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