A large workpiece multi-surface processing machine tool

Abstract

The application discloses a large workpiece multi-surface machining machine tool, and relates to the technical field of machine tools.The large workpiece multi-surface machining machine tool comprises a machine tool body, a chain tool magazine and a tool lifting device are arranged on the side wall of the machine tool body, the chain tool magazine comprises a support, a plurality of guide sleeves and an automatic tool changing mechanism arm, the tool lifting device comprises a mechanical arm, the tail end of the mechanical arm is fixedly connected with a fixed frame, and the side wall of the fixed frame is connected with two symmetrically-arranged T-shaped plates through a moving module.The large workpiece multi-surface machining machine tool is convenient for automatically blowing and cleaning the tool shank, guarantees the clamping effect of the tool shank, can automatically blow and clean the surface of the tool, is convenient for cleaning the chippings and cutting fluid, is convenient for detecting the adhesion of impurities on the surface of the tool and the wear state, is convenient for spraying rust-proof oil on the surface of the tool, is more convenient and fast to use, and guarantees the use effect and service life.

Description

Technical Field

[0001] This invention relates to the field of machine tool technology, specifically to a machine tool for multi-faceted machining of large workpieces. Background Technology

[0002] Large workpiece multi-face machining center is a machine tool specifically designed for machining large workpieces and capable of machining multiple faces in a single setup. It mainly consists of the machine body, a chain-type tool magazine, and a tool lifting device. The chain-type tool magazine is a device for storing and managing machining tools; its core structure comprises a chain, tool holders, and a drive system. Tools are fixed in tool holders on the chain links, and the chain is driven by a motor or servo system to form a closed-loop cyclic motion. The tool lifting device is a mechanical mechanism responsible for gripping and transferring tools between the tool magazine and the machine spindle; it typically includes a robotic arm, grippers, guide rails, and a drive system.

[0003] Publication number CN119282826A discloses a dual-spindle machining center for large workpieces. However, in existing multi-face machining centers for large workpieces, when the tool lifting device is gripping and transferring the tool, the tool on the machine tool is prone to adhering to debris and other impurities, which is not convenient and quick to clean. This not only affects the gripping effect but also the performance and lifespan of the tool. At the same time, it is not convenient to detect the adhesion of impurities and the wear condition of the tool, which also affects its performance and lifespan. Furthermore, during the cutting process, the tool comes into contact with cutting fluid, which can easily cause rust, also affecting its performance and lifespan. Summary of the Invention

[0004] The purpose of this invention is to provide a machine tool for multi-faceted machining of large workpieces to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a large workpiece multi-face machining machine tool, comprising a machine tool body, wherein a chain-type tool magazine and a tool lifting device are provided on the side wall of the machine tool body, the chain-type tool magazine comprising a bracket, multiple guide sleeves and an automatic tool changing mechanism arm, and the tool lifting device comprising a robotic arm, characterized in that: a fixed frame is fixedly connected to the end of the robotic arm, and two symmetrically arranged T-shaped plates are connected to the side wall of the fixed frame through a moving module, and two hollow first-stage first-stage second ... An arc-shaped cover is provided, and multiple arrayed first air blowing holes are opened on the side walls of the two first arc-shaped covers facing each other. Multiple arrayed second air blowing holes are opened on the bottom of the first arc-shaped cover. Multiple mounting columns are fixedly connected to the side wall of the T-shaped plate near the first arc-shaped cover. Universal ball is provided at the end of the mounting column. An air supply mechanism is provided on the side wall of the fixing frame. A sealing mechanism for sealing the second air blowing holes is provided at the bottom of the first arc-shaped cover. An oil spraying mechanism for spraying rust-preventive oil onto the cutting tool is provided on the side wall of the first arc-shaped cover.

[0006] Preferably, the weighing mechanism includes two symmetrically arranged first T-shaped guide rods fixedly connected to the top of each T-shaped plate, and a first L-shaped plate is sleeved on the side wall of the first T-shaped guide rod. The first L-shaped plate is fixed to the top of the first arc-shaped cover, and a first spring is sleeved on the side wall of each first T-shaped guide rod. A distance sensor is fixedly inserted into the top of the first L-shaped plate, and a limiting mechanism for limiting the first L-shaped plate is provided on the side wall of the T-shaped plate.

[0007] Preferably, the limiting mechanism includes a U-shaped block inserted into the side wall of the first L-shaped plate, and the side wall of the U-shaped block is provided with two symmetrically arranged inclined surfaces. The side wall of the U-shaped block is fixedly connected to two symmetrically arranged second T-shaped guide rods, and the side wall of the second T-shaped guide rods is sleeved with a second L-shaped plate. The second L-shaped plate is fixed to the side wall of the T-shaped plate, and the side wall of each second T-shaped guide rod is sleeved with a second spring. The side wall of the second L-shaped plate is fixedly connected to an electromagnet, and the side wall of the U-shaped block is fixedly connected to an iron block.

[0008] Preferably, the gas supply mechanism includes two symmetrically arranged connecting frames fixedly connected to the side wall of the fixed frame, and a fixed box is fixedly connected to the side wall of each connecting frame. A sliding plate is slidably connected inside the fixed box, and a connecting plate is fixedly connected between the sliding plate and the T-shaped plate. A fixed pipe is fixedly inserted into the side wall of the T-shaped plate, and a first flexible hose is fixedly connected between one end of the fixed pipe and the first arc-shaped cover. A second flexible hose is fixedly connected between the other end of the fixed pipe and the fixed box. An air inlet pipe is fixedly connected to the top of the fixed box. A first one-way valve is provided inside the air inlet pipe, a second one-way valve is provided inside the fixed pipe, and an opening and closing mechanism is provided on the side wall of the fixed pipe.

[0009] Preferably, the opening and closing mechanism includes a fixed cover that is fixedly inserted into the side wall of the fixed tube, and a sealing block is inserted inside the fixed cover. The side wall of the sealing block has a round hole. A third spring is fixedly connected between the sealing block and the fixed cover, and the movement of the sealing block is driven by a pushing mechanism.

[0010] Preferably, the pushing mechanism includes a support frame fixedly connected to the top of the fixed box, an inclined plate fixedly connected to the side wall of the support frame, and a flat plate fixedly connected to the side wall of the inclined plate.

[0011] Preferably, the sealing mechanism includes an L-shaped frame fixedly connected to the bottom of the connecting frame, and an arc-shaped plate is fixedly connected to the side wall of the L-shaped frame.

[0012] Preferably, the oil spraying mechanism includes a hollow second arc-shaped cover fixedly connected to the side wall of the first arc-shaped cover, the bottom of the second arc-shaped cover having a plurality of oil spray holes arranged in an array, and the top of the T-shaped plate having an oil supply mechanism.

[0013] Preferably, the oil supply mechanism includes a mounting bracket fixedly connected to the top of the T-shaped plate, and an oil storage tank fixedly connected to the side wall of the mounting bracket. A connecting pipe is fixedly connected to the bottom of the oil storage tank, and a working cover is fixedly connected to the bottom of the connecting pipe. A moving plate is connected inside the working cover via a moving mechanism, and an oil supply pipe is fixedly connected between the working cover and the second arc-shaped cover. A third one-way valve is provided inside the connecting pipe, and a fourth one-way valve is provided inside the oil supply pipe.

[0014] Preferably, the moving mechanism includes a first connecting rod fixedly connected to the side wall of the U-shaped block, and a second connecting rod is fixedly connected between the moving plate and the first connecting rod.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] (1) This type of large workpiece multi-face processing machine tool, by setting up an air supply mechanism, etc., after processing is completed, when it is necessary to change the tool, the fixed frame is moved by the robotic arm, so that the two first arc-shaped covers are located on both sides of the tool holder. Then, the fixed frame drives the two first arc-shaped covers to move closer to each other. At the same time, when the T-shaped plate moves, it can drive the sliding plate to move synchronously through the connecting plate, which can compress and pressurize the air temporarily stored in the fixed box. Furthermore, when the T-shaped plate moves, it can drive the fixed cover to move synchronously through the fixed tube, so that the top of the sealing block can slide along the bottom of the inclined plate to the bottom of the flat plate. At this time, it can push the sealing block to slide down along the fixed cover. At the same time, the third spring is compressed. This opens the opening and closing mechanism, closes the first one-way valve, and opens the second one-way valve. This allows the compressed air inside the fixed box to enter the first arc-shaped cover through the second hose and the fixed tube, and then blown onto the tool holder through the first air blowing hole. This enables automatic air cleaning of the tool holder, making it more convenient and faster. It also ensures a more stable and reliable clamping effect of the first arc-shaped cover on the tool holder. After cleaning, the first arc-shaped cover clamps and fixes the tool holder. Simultaneously, the first arc-shaped cover can be removed from the top of the arc-shaped plate, exposing the second air blowing hole. At this point, the surface of the tool can be automatically cleaned with air, facilitating the removal of debris and cutting fluid, ensuring its performance and lifespan. Then, the tool is transferred to the chain tool magazine, and other tools can be replaced.

[0017] (2) This type of large workpiece multi-face processing machine tool, by setting up a weighing mechanism, etc., after cleaning, the electromagnet is energized. After the electromagnet is energized, it attracts the iron block, causing the U-shaped block to move closer to the second L-shaped plate. At the same time, the second spring is compressed, causing the U-shaped block to retract from the side wall of the first L-shaped plate. At this time, under the action of the gravity of the tool, the tool and the first arc-shaped cover move downward, and at the same time, the first L-shaped plate moves downward along the side wall of the first T-shaped guide rod, causing the first spring to be compressed. The distance change of the T-shaped plate is detected by the distance sensor, which can detect the first L-shaped plate. The compression of the spring is used to detect the weight of the tool. If the weight is too high, it indicates that there are debris or other impurities adhering to the surface that have not been completely cleaned. In this case, manual cleaning is required. If the weight is too low, it indicates that the tool is severely worn. This ensures the tool's performance and lifespan. After the test is completed, the electromagnet is de-energized. At this time, the U-shaped block can move away from the second L-shaped plate under the action of the second spring and reset itself. This allows the first L-shaped plate to slide along the inclined plane into the U-shaped block. This limits the first L-shaped plate, making the tool more stable and reliable during the transfer process.

[0018] (3) This type of large workpiece multi-face processing machine tool, by setting up an oil spraying mechanism, when the U-shaped block moves back and forth, it can drive the moving plate to slide inside the working cover through the first connecting rod and the second connecting rod. When the moving plate moves away from the working cover, it causes a negative pressure to be generated inside the working cover. At the same time, the third one-way valve opens and the fourth one-way valve closes, so that the rust-preventive oil in the working cover can enter the working cover through the oil storage tank and the connecting pipe. When the moving plate moves into the working cover, it can squeeze the rust-preventive oil in the working cover. At the same time, the third one-way valve closes and the fourth one-way valve opens, so that the rust-preventive oil in the working cover can be squeezed into the second arc-shaped cover through the oil supply pipe and the oil spray nozzle is on the surface of the tool. It is more convenient and faster to use and ensures its effectiveness and service life. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the overall structure from another perspective of the present invention;

[0021] Figure 3 This is a partial cross-sectional view of the fixing box and fixing cover in this invention;

[0022] Figure 4 This is a partial cross-sectional view of the arc-shaped plate in this invention;

[0023] Figure 5 for Figure 1 Enlarged structural diagram at point A;

[0024] Figure 6 for Figure 2 Enlarged structural diagram at point B;

[0025] Figure 7 for Figure 3 Enlarged structural diagram at point C;

[0026] Figure 8 for Figure 4 Enlarged structural diagram at point D;

[0027] Figure 9 for Figure 7 A magnified structural diagram at point E in the middle.

[0028] In the diagram: 1. Machine tool body; 201. First T-shaped guide rod; 202. First L-shaped plate; 203. First spring; 204. Distance sensor; 301. Second T-shaped guide rod; 302. Second L-shaped plate; 303. Second spring; 304. Iron block; 305. Electromagnet; 306. U-shaped block; 307. Inclined surface; 401. Connecting frame; 402. Fixing box; 403. Sliding plate; 404. Connecting plate; 405. Fixing pipe; 406. Second flexible hose; 407. Air inlet pipe; 408. First flexible hose; 501. Fixing cover; 502. Sealing block; 503. Round hole; 504. Third spring; 601. Support frame; 602. Inclined plate; 603. Flat plate; 701. L-shaped frame; 702, arc-shaped plate; 801, second arc-shaped cover; 802, oil injection hole; 901, mounting bracket; 902, oil tank; 903, connecting pipe; 904, working cover; 905, oil supply pipe; 906, moving plate; 1001, first connecting rod; 1002, second connecting rod; 11, chain-type tool magazine; 1101, bracket; 1102, guide sleeve; 1103, automatic tool changer arm; 12, tool lifting device; 1201, robotic arm; 1202, fixed frame; 1203, mounting column; 1204, universal ball; 1205, first arc-shaped cover; 1206, first air blowing hole; 1207, second air blowing hole; 1208, moving module; 1209, T-shaped plate. Detailed Implementation

[0029] 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.

[0030] Please see Figures 1-9This invention provides a technical solution: a large workpiece multi-face machining machine tool, including a machine tool body 1. The side wall of the machine tool body 1 is provided with a chain-type tool magazine 11 and a tool lifting device 12. The chain-type tool magazine 11 includes a bracket 1101, multiple guide sleeves 1102, and an automatic tool changing mechanism arm 1103. The tool lifting device 12 includes a robotic arm 1201. The chain-type tool magazine 11 is a well-known technology in this field and will not be described in detail here. The end of the robotic arm 1201 is fixedly connected to a fixed frame 1202. The side wall of the fixed frame 1202 is connected to two symmetrically arranged T-shaped plates 1209 through a moving module 1208. The opposite side walls of the two T-shaped plates 1209 are connected to two hollow first arc-shaped covers 1205 through a weighing mechanism. The opposite side walls of the two first arc-shaped covers 1205 are provided with multiple arrayed first air blowing holes 1206. The bottom of the first arc-shaped covers 1205 is provided with multiple arrayed second air blowing holes 12. 07. The T-shaped plate 1209 is fixedly connected to the side wall near the first arc-shaped cover 1205 with multiple mounting posts 1203. The ends of the mounting posts 1203 are equipped with universal balls 1204, which abut against the first arc-shaped cover 1205 to ensure normal up-and-down movement of the first arc-shaped cover 1205. The side wall of the fixing frame 1202 is equipped with an air supply mechanism. The bottom of the first arc-shaped cover 1205 is equipped with a sealing mechanism for sealing the second air hole 1207. The side wall of the first arc-shaped cover 1205 is equipped with an oil spraying mechanism for spraying rust-preventive oil onto the tool. This facilitates automatic air cleaning of the tool holder, ensuring effective clamping of the tool holder; it enables automatic air cleaning of the tool surface, facilitating the removal of debris and cutting fluid; it facilitates the detection of impurities adhering to the tool surface and the wear condition; and it facilitates the spraying of rust-preventive oil onto the tool surface, making use more convenient and faster, and ensuring its effectiveness and lifespan.

[0031] Please see Figure 7 and Figure 9The weighing mechanism includes two symmetrically arranged first T-shaped guide rods 201 fixedly connected to the top of each T-shaped plate 1209. A first L-shaped plate 202 is sleeved on the side wall of each first T-shaped guide rod 201. The first L-shaped plate 202 is fixed to the top of the first arc-shaped cover 1205. A first spring 203 is sleeved on the side wall of each first T-shaped guide rod 201. A distance sensor 204 is fixedly inserted into the top of the first L-shaped plate 202. A limiting mechanism for limiting the first L-shaped plate 202 is provided on the side wall of the T-shaped plate 1209. After cleaning, the limiting mechanism is unlocked, and under the gravity of the blade, the blade and the first arc-shaped cover 1205 move downwards. Simultaneously, the first L-shaped plate 202 moves downward along the side wall of the first T-shaped guide rod 201, compressing the first spring 203. The distance sensor 204 detects the distance change of the T-shaped plate 1209, thereby detecting the compression of the first spring 203 and thus the weight of the tool. If the weight is too high, it indicates that there are debris or other impurities adhering to the surface that have not been completely cleaned, and manual cleaning is required. If the weight is too low, it indicates that the tool is severely worn, thus ensuring the tool's performance and lifespan. After the detection is completed, the first L-shaped plate 202 is limited by a limiting mechanism, making the tool more stable and reliable during the transfer process.

[0032] Please see Figure 9 The limiting mechanism includes a U-shaped block 306 inserted into the side wall of the first L-shaped plate 202, and the side wall of the U-shaped block 306 is provided with two symmetrically arranged inclined surfaces 307. Two symmetrically arranged second T-shaped guide rods 301 are fixedly connected to the side wall of the U-shaped block 306, and a second L-shaped plate 302 is sleeved on the side wall of the second T-shaped guide rod 301. The second L-shaped plate 302 is fixed to the side wall of the T-shaped plate 1209, and a second spring 303 is sleeved on the side wall of each second T-shaped guide rod 301. An electromagnet 305 is fixedly connected to the side wall of the second L-shaped plate 302, and an iron... Block 304 is activated, and electromagnet 305 is energized. When electromagnet 305 is energized, it attracts block 304, causing U-shaped block 306 to move closer to the second L-shaped plate 302. At the same time, the second spring 303 is compressed, causing U-shaped block 306 to exit from the side wall of the first L-shaped plate 202. Electromagnet 305 is de-energized. At this time, U-shaped block 306 can move away from the second L-shaped plate 302 and reset under the action of the second spring 303. This allows the first L-shaped plate 202 to slide along the inclined surface 307 into U-shaped block 306, thus limiting the position of the first L-shaped plate 202.

[0033] Please see Figure 7 and Figure 8The gas supply mechanism includes two symmetrically arranged connecting frames 401 fixedly connected to the side wall of the fixed frame 1202. A fixed box 402 is fixedly connected to the side wall of each connecting frame 401. A sliding plate 403 is slidably connected inside the fixed box 402. A connecting plate 404 is fixedly connected between the sliding plate 403 and the T-shaped plate 1209. A fixed pipe 405 is fixedly inserted into the side wall of the T-shaped plate 1209. A first flexible hose 408 is fixedly connected between one end of the fixed pipe 405 and the first arc-shaped cover 1205. A second flexible hose 406 is fixedly connected between the other end of the fixed pipe 405 and the fixed box 402. An air inlet pipe 407 is fixedly connected to the top of the fixed box 402. A first one-way valve is installed inside the air inlet pipe 407. The conduction direction of the first one-way valve is from... From the outside to the inside of the fixed box 402, a second one-way valve is installed in the fixed tube 405. The conduction direction of the second one-way valve is from the fixed box 402 to the inside of the first arc-shaped cover 1205. The side wall of the fixed tube 405 is provided with an opening and closing mechanism. When the T-shaped plate 1209 moves, it can drive the sliding plate 403 to move synchronously through the connecting plate 404, which can compress and pressurize the air temporarily stored in the fixed box 402. When the opening and closing mechanism is opened, the first one-way valve is closed and the second one-way valve is opened, so that the compressed air in the fixed box 402 can enter the first arc-shaped cover 1205 through the second hose 406 and the fixed tube 405 and be blown onto the handle through the first air blowing hole 1206, thereby enabling automatic air blowing cleaning of the handle, which is more convenient and faster.

[0034] Please see Figure 7 and Figure 9 The opening and closing mechanism includes a fixed cover 501 fixedly inserted into the side wall of the fixed tube 405, and a sealing block 502 is inserted inside the fixed cover 501. A round hole 503 is opened in the side wall of the sealing block 502. A third spring 504 is fixedly connected between the sealing block 502 and the fixed cover 501. The movement of the sealing block 502 is pushed by a pushing mechanism. The pushing mechanism pushes the sealing block 502 to slide downward along the fixed cover 501. At the same time, the third spring 504 is compressed, so that the opening and closing mechanism is opened.

[0035] Please see Figure 9 The pushing mechanism includes a support frame 601 fixedly connected to the top of the fixed box 402. An inclined plate 602 is fixedly connected to the side wall of the support frame 601, and a flat plate 603 is fixedly connected to the side wall of the inclined plate 602. When the T-shaped plate 1209 moves, it can drive the fixed cover 501 to move synchronously through the fixed tube 405, so that the top of the sealing block 502 can slide along the bottom of the inclined plate 602 to the bottom of the flat plate 603. At this time, the sealing block 502 can be pushed to slide down along the fixed cover 501. At the same time, the third spring 504 is compressed, so that the opening and closing mechanism is opened.

[0036] Please see Figure 8The sealing mechanism includes an L-shaped frame 701 fixedly connected to the bottom of the connecting frame 401, and an arc-shaped plate 702 fixedly connected to the side wall of the L-shaped frame 701. After the knife handle is cleaned, the first arc-shaped cover 1205 can clamp and fix the knife handle. At the same time, the first arc-shaped cover 1205 can be removed from the top of the arc-shaped plate 702, so that the second air blowing hole 1207 is exposed.

[0037] Please see Figure 8 The oil spraying mechanism includes a hollow second arc-shaped cover 801 fixedly connected to the side wall of the first arc-shaped cover 1205. The bottom of the second arc-shaped cover 801 has a plurality of oil spraying holes 802 arranged in an array, and the top of the T-shaped plate 1209 is provided with an oil supply mechanism. The oil supply mechanism supplies rust-preventive oil into the second arc-shaped cover 801 and sprays the oil spraying holes 802 onto the surface of the tool, making it more convenient and faster to use, and ensuring its effectiveness and lifespan.

[0038] Please see Figure 7 and Figure 8 The oil supply mechanism includes a mounting bracket 901 fixedly connected to the top of the T-shaped plate 1209, and an oil reservoir 902 fixedly connected to the side wall of the mounting bracket 901. A connecting pipe 903 is fixedly connected to the bottom of the oil reservoir 902, and a working cover 904 is fixedly connected to the bottom of the connecting pipe 903. A moving plate 906 is connected inside the working cover 904 via a moving mechanism. An oil supply pipe 905 is fixedly connected between the working cover 904 and the second arc-shaped cover 801. A third check valve is installed inside the connecting pipe 903, and the conduction direction of the third check valve is from the oil reservoir 902 to the working cover 904. A fourth check valve is installed inside the oil supply pipe 905, and the conduction direction of the fourth check valve is from the working cover 904 to the second arc-shaped cover 801. Inside, when the U-shaped block 306 reciprocates, it can drive the moving plate 906 to slide inside the working cover 904 through the moving mechanism. When the moving plate 906 moves away from the working cover 904, it creates a negative pressure inside the working cover 904. At the same time, the third one-way valve opens and the fourth one-way valve closes, allowing the rust-preventive oil in the working cover 904 to enter the working cover 904 through the oil storage tank 902 and the connecting pipe 903. When the moving plate 906 moves into the working cover 904, it can squeeze the rust-preventive oil in the working cover 904. At the same time, the third one-way valve closes and the fourth one-way valve opens, allowing the rust-preventive oil in the working cover 904 to be squeezed into the second arc-shaped cover 801 through the oil supply pipe 905.

[0039] Please see Figure 7 The moving mechanism includes a first connecting rod 1001 fixedly connected to the side wall of the U-shaped block 306, and a second connecting rod 1002 fixedly connected between the moving plate 906 and the first connecting rod 1001. When the U-shaped block 306 reciprocates, the moving plate 906 can slide within the working cover 904 through the first connecting rod 1001 and the second connecting rod 1002.

[0040] Working Principle: During use, after processing is completed, when the tool needs to be replaced, the robotic arm 1201 moves the fixed frame 1202, positioning the two first arc-shaped covers 1205 on either side of the tool holder. Then, the fixed frame 1202 moves the two first arc-shaped covers 1205 closer together. Simultaneously, when the T-shaped plate 1209 moves, the connecting plate 404 drives the sliding plate 403 to move synchronously, compressing and pressurizing the air temporarily stored in the fixed box 402. Furthermore, when the T-shaped plate 1209 moves, the fixed tube 405 drives the fixed cover 501 to move synchronously, making... The top of the sealing block 502 can slide along the bottom of the inclined plate 602 to the bottom of the flat plate 603. At this time, the sealing block 502 can be pushed to slide down along the fixed cover 501. At the same time, the third spring 504 is compressed, which opens the opening and closing mechanism. The first one-way valve closes and the second one-way valve opens, so that the compressed air in the fixed box 402 can enter the first arc-shaped cover 1205 through the second hose 406 and the fixed tube 405 and blow onto the knife handle through the first air blowing hole 1206. This allows for automatic air blowing cleaning of the knife handle, which is more convenient and faster, and ensures that the clamping effect of the first arc-shaped cover 1205 on the knife handle is more stable and reliable.

[0041] After the tool holder is cleaned, the first arc-shaped cover 1205 can clamp and fix the tool holder. At the same time, the first arc-shaped cover 1205 can be removed from the top of the arc-shaped plate 702, so that the second air blowing hole 1207 is exposed. At this time, the surface of the tool can be automatically cleaned by air blowing, which is convenient for cleaning up chips and cutting fluid, ensuring its performance and service life.

[0042] After cleaning is completed, electromagnet 305 is energized. When energized, electromagnet 305 attracts iron block 304, causing U-shaped block 306 to move closer to the second L-shaped plate 302. Simultaneously, the second spring 303 is compressed, causing U-shaped block 306 to retract from the side wall of the first L-shaped plate 202. At this point, under the gravity of the tool, the tool and the first arc-shaped cover 1205 move downwards, simultaneously causing the first L-shaped plate 202 to move downwards along the side wall of the first T-shaped guide rod 201, compressing the first spring 203. The distance change of the T-shaped plate 1209 is detected by distance sensor 204, thus detecting the first spring 203. The compression amount of 3 is used to detect the weight of the tool. If the weight is too high, it means that there are debris or other impurities adhering to the surface that have not been completely cleaned. In this case, manual cleaning is required. If the weight is too low, it means that the tool is severely worn. This ensures the tool's performance and lifespan. After the test is completed, the electromagnet 305 is de-energized. At this time, the U-shaped block 306 can move away from the second L-shaped plate 302 under the action of the second spring 303 and reset. This allows the first L-shaped plate 202 to slide along the inclined plane 307 into the U-shaped block 306. This limits the first L-shaped plate 202, making the tool more stable and reliable during the transfer process.

[0043] When the U-shaped block 306 reciprocates, it can drive the moving plate 906 to slide inside the working cover 904 via the first connecting rod 1001 and the second connecting rod 1002. When the moving plate 906 moves away from the working cover 904, it creates a negative pressure inside the working cover 904. At the same time, the third one-way valve opens and the fourth one-way valve closes, allowing the rust-preventive oil in the working cover 904 to enter the working cover 904 through the oil storage tank 902 and the connecting pipe 903. When the moving plate 906 moves into the working cover 904, it can squeeze the rust-preventive oil inside the working cover 904. At the same time, the third one-way valve closes and the fourth one-way valve opens, allowing the rust-preventive oil in the working cover 904 to be squeezed into the second arc-shaped cover 801 through the oil supply pipe 905, and the spray nozzle 802 sprays onto the surface of the tool, making it more convenient and faster to use, and ensuring its effectiveness and lifespan.

[0044] Next, the tool is transferred to the chain tool magazine 11. Then, the moving module 1208 drives the two first arc-shaped covers 1205 to move away from each other, thereby releasing the tool. When the two first arc-shaped covers 1205 move away from each other, they can drive the sliding plate 403 to move and reset. At this time, the first one-way valve opens and the second one-way valve closes, allowing external air to enter the fixed box 402 through the air inlet pipe 407 for temporary storage. Finally, other tools can be replaced for gripping and transfer.

[0045] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0046] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A machine tool for multi-face machining of large workpieces, comprising a machine tool body (1), wherein a chain-type tool magazine (11) and a tool lifting device (12) are provided on the side wall of the machine tool body (1), the chain-type tool magazine (11) comprising a bracket (1101), multiple guide sleeves (1102) and an automatic tool changing mechanism arm (1103), and the tool lifting device (12) comprising a robotic arm (1201), characterized in that: The end of the robotic arm (1201) is fixedly connected to a fixed frame (1202), and the side wall of the fixed frame (1202) is connected to two symmetrically arranged T-shaped plates (1209) through a moving module (1208). The opposite side walls of the two T-shaped plates (1209) are connected to two hollow first arc-shaped covers (1205) through a weighing mechanism. The opposite side walls of the two first arc-shaped covers (1205) are provided with a plurality of arrayed first air holes (1206), and the bottom of the first arc-shaped covers (1205) is provided with a plurality of arrayed first air holes (1206). The second air blowing hole (1207) is provided, and a number of mounting posts (1203) are fixedly connected to the side wall of the T-shaped plate (1209) near the first arc-shaped cover (1205). The end of the mounting post (1203) is provided with a universal ball (1204), and the side wall of the fixing frame (1202) is provided with an air supply mechanism. The bottom of the first arc-shaped cover (1205) is provided with a sealing mechanism for sealing the second air blowing hole (1207), and the side wall of the first arc-shaped cover (1205) is provided with an oil spraying mechanism for spraying rust-preventive oil onto the tool. The weighing mechanism includes two symmetrically arranged first T-shaped guide rods (201) fixedly connected to the top of each T-shaped plate (1209), and a first L-shaped plate (202) is sleeved on the side wall of the first T-shaped guide rod (201). The first L-shaped plate (202) is fixed to the top of the first arc-shaped cover (1205), and a first spring (203) is sleeved on the side wall of each first T-shaped guide rod (201). A distance sensor (204) is fixedly inserted into the top of the first L-shaped plate (202), and a limiting mechanism for limiting the first L-shaped plate (202) is provided on the side wall of the T-shaped plate (1209). The limiting mechanism includes a U-shaped block (306) inserted into the side wall of the first L-shaped plate (202), and the side wall of the U-shaped block (306) is provided with two symmetrically arranged inclined surfaces (307). The side wall of the U-shaped block (306) is fixedly connected to two symmetrically arranged second T-shaped guide rods (301), and the side wall of the second T-shaped guide rods (301) is sleeved with a second L-shaped plate (302). The second L-shaped plate (302) is fixed to the side wall of the T-shaped plate (1209), and the side wall of each second T-shaped guide rod (301) is sleeved with a second spring (303). The side wall of the second L-shaped plate (302) is fixedly connected to an electromagnet (305), and the side wall of the U-shaped block (306) is fixedly connected to an iron block (304). The gas supply mechanism includes two symmetrically arranged connecting frames (401) fixedly connected to the side wall of the fixed frame (1202), and a fixed box (402) is fixedly connected to the side wall of each connecting frame (401). A sliding plate (403) is slidably connected inside the fixed box (402), and a connecting plate (404) is fixedly connected between the sliding plate (403) and the T-shaped plate (1209). A fixing pipe (405) is fixedly inserted into the side wall of the T-shaped plate (1209), and the fixing pipe ( A first flexible tube (408) is fixedly connected between one end of the fixed tube (405) and the first arc-shaped cover (1205), and a second flexible tube (406) is fixedly connected between the other end of the fixed tube (405) and the fixed box (402). An air inlet pipe (407) is fixedly connected to the top of the fixed box (402). A first one-way valve is provided in the air inlet pipe (407), a second one-way valve is provided in the fixed tube (405), and an opening and closing mechanism is provided on the side wall of the fixed tube (405). The opening and closing mechanism includes a fixed cover (501) fixedly inserted into the side wall of the fixed tube (405), and a sealing block (502) is inserted inside the fixed cover (501). The side wall of the sealing block (502) is provided with a round hole (503). A third spring (504) is fixedly connected between the sealing block (502) and the fixed cover (501), and the movement of the sealing block (502) is driven by a pushing mechanism. The pushing mechanism includes a support frame (601) fixedly connected to the top of the fixed box (402), and an inclined plate (602) is fixedly connected to the side wall of the support frame (601), and a flat plate (603) is fixedly connected to the side wall of the inclined plate (602). The blocking mechanism includes an L-shaped frame (701) fixedly connected to the bottom of the connecting frame (401), and an arc-shaped plate (702) is fixedly connected to the side wall of the L-shaped frame (701). The oil spraying mechanism includes a hollow second arc-shaped cover (801) fixedly connected to the side wall of the first arc-shaped cover (1205). The bottom of the second arc-shaped cover (801) is provided with a plurality of arrayed oil spray holes (802), and the top of the T-shaped plate (1209) is provided with an oil supply mechanism. The oil supply mechanism includes a mounting bracket (901) fixedly connected to the top of the T-shaped plate (1209), and an oil storage tank (902) fixedly connected to the side wall of the mounting bracket (901). A connecting pipe (903) is fixedly connected to the bottom of the oil storage tank (902), and a working cover (904) is fixedly connected to the bottom of the connecting pipe (903). A moving plate (906) is connected inside the working cover (904) through a moving mechanism. An oil supply pipe (905) is fixedly connected between the working cover (904) and the second arc-shaped cover (801). A third one-way valve is provided inside the connecting pipe (903), and a fourth one-way valve is provided inside the oil supply pipe (905). The moving mechanism includes a first connecting rod (1001) fixedly connected to the side wall of the U-shaped block (306), and a second connecting rod (1002) fixedly connected between the moving plate (906) and the first connecting rod (1001); The omnidirectional ball (1204) abuts against and supports the vertical sliding of the first arc-shaped cover (1205), ensuring the stability of the weighing and detection process; The sealing mechanism can automatically seal and depressurize as the first arc-shaped cover (1205) is clamped and displaced, thereby realizing centralized air blowing cleaning of the tool holder and air blowing cleaning of the entire tool area; The spraying mechanism relies on the mechanical linkage of the equipment itself to achieve automatic oil supply and spraying without power.

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