A gantry manufacturing numerical control machine tool and a control method thereof

Abstract

The application discloses a gantry manufacturing numerical control machine tool and a control method thereof, and relates to the technical field of machine tool machining. The machine tool comprises a mounting plate, the top of the mounting plate is fixedly connected with a gantry body, a support plate is slidably connected to the cross beam of the gantry body, a cutter arm is rotatably connected to one side of the bottom of the support plate, a first motor is fixedly connected to the other side of the bottom of the support plate, the output shaft of the first motor penetrates through the support plate and is fixedly connected to one side of the cutter arm, a control valve is arranged on one side of the support plate, the control valve is fixedly connected to the bottom of the cross beam of the gantry body, and water pipes are connected to the two sides of the control valve. The brush oil assembly, the clamping assembly and the oil conveying assembly are arranged, so that the effect of automatic tool replacement can be achieved when the workpiece is machined, and the replaced tools with different diameters can be brushed with corresponding amounts of oil, which is more convenient.

Description

Technical Field

[0001] This invention relates to the field of machine tool processing technology, specifically to a CNC machine tool for gantry manufacturing and its control method. Background Technology

[0002] A gantry CNC machine tool is a vertical machining center that utilizes a gantry frame. The gantry CNC machine tool uses a CNC system to control the movement of the worktable in all directions and performs machining operations such as cutting through the spindle box. Users write machining programs according to machining requirements. After receiving the program instructions, the CNC system uses electrical control signals to coordinate the movement of various parts of the machine tool, thereby completing the machining of the workpiece. Therefore, it plays a key role in modern manufacturing.

[0003] In the process of machining workpieces, some CNC machine tools used for gantry frame manufacturing require the use of multiple cutting heads. When changing cutting heads, manual operation is required, which poses a risk of injury from the cutting heads. In addition, after changing the cutting heads, the operators also need to clean them and apply anti-rust oil, which is a tedious and time-consuming process.

[0004] To address the aforementioned issues, innovative designs are urgently needed based on existing approaches. Summary of the Invention

[0005] The purpose of this invention is to provide a CNC machine tool for gantry manufacturing and its control method, in order to solve the problems mentioned in the background art, which require manual operation when changing tools, which poses a risk of injury from the tool tip, and also require operators to clean and apply anti-rust oil to the tool tip after replacement, a process that is cumbersome and time-consuming. The technical solution of this invention addresses the problem of the overly simplistic nature of existing technical solutions by providing a solution that is significantly different from existing technologies.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a CNC machine tool for manufacturing gantry frames, comprising a mounting plate, a gantry frame body fixedly connected to the top of the mounting plate, a support plate slidably connected to the crossbeam of the gantry frame body, a cutter arm rotatably connected to one side of the bottom of the support plate, a first motor fixedly connected to the other side of the bottom of the support plate, the output shaft of the first motor passing through the support plate and fixedly connected to one side of the cutter arm, a control valve provided on one side of the support plate, the control valve fixedly connected to the bottom of the crossbeam in the gantry frame body, water pipes connected to both sides of the control valve, one side of the control valve connected to a nozzle through the water pipe, a water tank provided directly below the nozzle, the water tank fixedly connected to the mounting plate, a clamp provided on one side of the water tank for clamping workpieces, and an auxiliary plate fixedly connected to one side of the gantry frame body. An oiling assembly is rotatably connected to one side of the auxiliary plate. A clamping assembly is fixedly connected to one side of the oiling assembly via a connecting post. A set of circular arrayed cutting tools are inserted into the oiling assembly and the clamping assembly. A second motor is provided on the other side of the auxiliary plate. A crank connecting rod is fixedly connected to the output shaft of the second motor. An auxiliary rod is rotatably connected to the crank connecting rod. An oil supply assembly is rotatably connected to the bottom of the auxiliary rod. The oiling assembly is used to oil the cutting tools. The clamping assembly is used to clamp the tool holder. The oil supply assembly is used to supply rust-preventive oil to the auxiliary plate. A microcontroller is provided at the bottom of the mounting plate. The first motor is electrically connected to the microcontroller. The control valve is also electrically connected to the microcontroller. By setting the control valve, the cutting tools can be treated in a timely manner after use to remove impurities from their surface, facilitating the next use of the cutting tools.

[0007] Preferably, an annular groove is provided on one side of the auxiliary plate, a first placement groove is provided in the middle of the annular groove, a first oil pad is provided on one side above the annular groove, the first oil pad is arc-shaped, a placement hole is provided in the middle of the first placement groove, and a rotation groove is provided directly below the annular groove. When the tool is inserted into the clamping assembly, the cutting edge of the tool is in close contact with the first oil pad. When the clamping assembly rotates, the cutting edge of the tool will move on the first oil pad and be coated with anti-rust oil.

[0008] Preferably, the oiling assembly includes a first clamping plate, an oil storage ring is provided inside the first clamping plate, an oiling roller is rotatably connected to the first clamping plate, a first oil storage rod is fixedly connected to the first clamping plate, and an oil storage box is provided on one side of the first clamping plate, the oil storage box being filled with rust-preventive oil.

[0009] Preferably, the first clamping plate has a set of annular array slots, and a set of annular array oil brushing rollers are rotatably connected to the slots of the first clamping plate. The oil brushing rollers are rotatably connected to the mounting base. A second oil pad is provided on the inner side of the mounting base. A first spring is fixedly connected to the bottom of the mounting base. The second oil pads on the two mounting bases closest to the oil storage ring in the slots of the first clamping plate are connected to the oil storage ring through hoses. The bottom of the mounting base away from the oil storage ring is fixedly connected to the first piston rod of the first oil storage rod. The first oil storage rod is connected to the sealing cover plate of the oil storage box through an oil pipe. A sealing groove is provided on the side of the sealing cover plate. The sealing cover plate is rotatably connected to the oil storage box through the sealing groove. The oil pipe between the first oil storage rod and the oil storage box passes through the first clamping plate. When the first clamping plate rotates, the sealing cover plate rotates synchronously with the first clamping plate. At this time, the oil storage box remains stationary.

[0010] Preferably, a rotating ring is provided on one side of the first clamping plate, and a second placement groove is provided in the middle of the rotating ring. The first clamping plate and the auxiliary plate are rotatably connected through the rotating ring and the annular groove. One side of the oil storage box is rotatably connected to the second placement groove, and the other side of the oil storage box is fixedly connected to the first placement groove. A set of annular array sawtooth structures is provided on the side of the first clamping plate. The crank connecting rod is rotatably connected to the rotating groove of the auxiliary plate. One end of the crank connecting rod is fixedly connected to an auxiliary gear, and the auxiliary gear meshes with the first clamping plate.

[0011] Preferably, the clamping assembly includes a second clamping plate, which has a set of annularly arranged slots. A clamping cylinder is rotatably connected to the slots of the second clamping plate. An annularly arranged clamping block is provided in the clamping cylinder. The bottom of the clamping block is connected to the inner wall of the clamping cylinder by a spring. Some of the top of the second clamping plate is provided with trigger rails, which are fixedly connected to an auxiliary plate. By setting the trigger rails, the tool located at the top can be rotated whenever the second clamping plate rotates.

[0012] Preferably, the side wall of the clamping cylinder is provided with a set of annular array sawtooth structures, and one side of the sawtooth structure in the clamping cylinder is located outside the second clamping plate. The trigger rail is arc-shaped, and the inner wall of the trigger rail is provided with a set of arc-shaped, evenly spaced sawtooth structures. The clamping cylinder is engaged with the inner wall of the trigger rail through the sawtooth structures.

[0013] Preferably, the oil delivery assembly includes a second oil reservoir rod, a piston block slidably connected to the upper part of the second oil reservoir rod, a support rod slidably connected to the piston block, a second spring disposed between the bottom of the support rod and the bottom of the cavity in the piston block, a third oil reservoir rod fixedly connected to the bottom of the second oil reservoir rod, a third piston rod disposed in the third oil reservoir rod, a convex top disposed on the top of the third piston rod, the convex top being slidably and sealingly connected to the lower part of the second oil reservoir rod, the convex top having a structure that is thicker at the bottom and thinner in the middle, the bottom of the convex top being located below the upper hose of the second oil reservoir rod, and the top of the convex top being located above the upper hose of the second oil reservoir rod.

[0014] Preferably, the two sides of the second oil reservoir are respectively connected to an outlet valve and an inlet valve via hoses. The outlet valve is connected to the first oil pad of the auxiliary plate via a hose, the inlet valve is connected to the oil tank via a hose, and the first oil reservoir is connected to the third oil reservoir via a hose.

[0015] This application also provides another technical solution: a control method for a CNC machine tool for gantry manufacturing, the control method comprising the following steps: S1. The operator clamps the workpiece on the fixture and places the cutting tool required for machining the workpiece on the clamping assembly; S2. The operator starts the equipment, and the cutter arm begins to rotate under the action of the first motor, while moving on the gantry frame body at the same time, so that the cutter arm gradually approaches the clamping assembly. S3. After the tool located at the top of the clamping assembly is installed on the tool arm, the tool arm begins to process the workpiece; S4. When the cutter arm needs to replace the cutter, the cutter arm will reinsert the cutter into the clamping assembly, and during the movement, the nozzle will release cleaning fluid to remove impurities from the cutter. S5. When the tool is inserted into the clamping assembly, the oiling assembly will oil the tool and, under the action of the second motor, change the position of the tool so that the tool to be used is at the top of the clamping assembly.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects: In the above solution, by setting up an oiling component and a clamping component, various cutting tools required for machining can be prepared on the CNC machine tool during workpiece processing, which facilitates tool replacement. Furthermore, when changing tools, the clamping component can make the corresponding tool rotate, which increases the oiling efficiency of the oiling component on the tool, allowing the tool to be oiled more evenly.

[0017] By setting up an oil supply component and an oil brushing component, when brushing oil on the cutting tool, the oil brushing component can feed back the diameter of the cutting tool to the oil supply component, so that the oil supply component can supply an appropriate amount of oil according to the diameter of the cutting tool. When the diameter of the cutting tool is larger, the cutting surface area of ​​the cutting tool is larger, and the contact area between the cutting tool and the first oil pad is larger. At this time, the oil supply component will deliver more oil to the first oil pad, so that the cutting surface of the cutting tool can fully contact the rust-preventive oil. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a CNC machine tool for gantry frame manufacturing and its control method according to the present invention; Figure 2 This is a schematic diagram of the auxiliary plate structure of the present invention; Figure 3 This is a partial structural diagram of the present invention; Figure 4 This is a schematic diagram of the connection structure between the first clamping plate and the auxiliary plate of the present invention; Figure 5 This is an exploded view of the oil brushing assembly of the present invention; Figure 6 This is a schematic diagram of the cross-sectional structure of the first clamping plate of the present invention; Figure 7 This is a schematic diagram of the brushing roller structure of the present invention; Figure 8 This is a schematic diagram of the oil storage box structure of the present invention; Figure 9 This is a schematic diagram of the exploded structure of the clamping component of the present invention; Figure 10 This is a schematic diagram of the oil transport component structure of the present invention; Figure 11 This is a schematic diagram of the planar structure of the oil delivery assembly of the present invention; Figure 12 This is a system diagram of the present invention.

[0019] In the diagram: 1. Mounting plate; 11. Gantry frame body; 111. Support plate; 112. Blade arm; 113. First motor; 12. Control valve; 121. Nozzle; 13. Clamp; 14. Water tank; 2. Auxiliary plate; 21. Annular groove; 211. Placement hole; 212. Rotating groove; 22. First oil pad; 23. First placement groove; 3. Oil brushing assembly; 31. First clamping plate; 311. Rotating ring; 312. Second placement groove; 313. Connecting column; 32. Oil storage ring; 33. Oil brushing roller; 331. Mounting base; 332. Second oil pad; 333. First... 35. Spring; 35. First oil reservoir rod; 351. First piston rod; 36. Oil reservoir box; 361. Sealing cover plate; 4. Clamping assembly; 41. Second clamping plate; 42. Clamping cylinder; 421. Clamping block; 43. Trigger rail; 5. Cutting tool; 6. Second motor; 61. Crank connecting rod; 611. Auxiliary gear; 612. Auxiliary rod; 7. Oil delivery assembly; 71. Second oil reservoir rod; 711. Discharge valve; 712. Inlet valve; 72. Piston block; 73. Support rod; 731. Second spring; 74. Third oil reservoir rod; 741. Third piston rod; 742. Convex top. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1 and Figure 12This invention provides a technical solution: a CNC machine tool for gantry frame manufacturing and its control method, comprising a mounting plate 1, a gantry frame body 11 fixedly connected to the top of the mounting plate 1, a support plate 111 slidably connected to the crossbeam of the gantry frame body 11, a cutter arm 112 rotatably connected to one side of the bottom of the support plate 111, a first motor 113 fixedly connected to the other side of the bottom of the support plate 111, the output shaft of the first motor 113 passing through the support plate 111 and fixedly connected to one side of the cutter arm 112, a control valve 12 provided on one side of the support plate 111, the control valve 12 fixedly connected to the bottom of the crossbeam in the gantry frame body 11, water pipes connected to both sides of the control valve 12, one side of the control valve 12 connected to a nozzle 121 through a water pipe, and the nozzle 121 being... A water tank 14 is provided below, and the water tank 14 is fixedly connected to the mounting plate 1. A clamp 13 is provided on one side of the water tank 14 for clamping the workpiece. An auxiliary plate 2 is fixedly connected to one side of the gantry frame body 11. An oiling assembly 3 is rotatably connected to one side of the auxiliary plate 2. A clamping assembly 4 is fixedly connected to one side of the oiling assembly 3 via a connecting column 313. A set of circular array cutters 5 are inserted into the oiling assembly 3 and the clamping assembly 4. A second motor 6 is provided on the other side of the auxiliary plate 2. A crank connecting rod 61 is fixedly connected to the output shaft of the second motor 6. An auxiliary rod 612 is rotatably connected to the crank connecting rod 61. An oil supply assembly 7 is rotatably connected to the bottom of the auxiliary rod 612. The oiling assembly 3 is used to oil the cutters 5, and the clamping assembly 4 is used to clamp the cutters 5. The handle and oil supply assembly 7 are used to supply rust-preventive oil to the auxiliary plate 2. A single-chip microcomputer controller is set at the bottom of the mounting plate 1. The first motor 113 is electrically connected to the single-chip microcomputer controller, and the control valve 12 is electrically connected to the single-chip microcomputer controller. When processing the workpiece, the operator first needs to clamp the workpiece on the fixture 13 and insert the tool 5 required for processing the workpiece into the corresponding clamping assembly 4. Then, the tool arm 112 will rotate under the action of the single-chip microcomputer controller and gradually approach the clamping assembly 4. Then, one end of the tool arm 112 will be inserted into the uppermost tool 5 in the clamping assembly 4, and the tool 5 will be pulled out of the clamping assembly 4. When the tool arm 112 and the tool 5 are combined, the tool arm 112 will process the workpiece by controlling the displacement of the tool 5. When the cutting tool 5 needs to be replaced, the cutting arm 112 begins to rotate and gradually approaches the clamping assembly 4 after rotating 90 degrees. When the cutting tool 5 moves below the nozzle 121, the microcontroller controls the control valve 12 to open, allowing cleaning fluid to flow from the nozzle 121 and rinse the cutting tool 5 below, removing debris from its surface. After the cutting tool 5 has been cleaned, the microcontroller controls the control valve 12 to close. At this time, the cutting arm 112 will briefly rotate with the cutting tool 5 to remove excess liquid from its surface. As the cutting arm 112 moves, it will reinsert the cutting tool 5 into the slot located at the top of the clamping assembly 4. Once the cutting tool 5 is inserted into the slot, the cutting arm 112 separates from the cutting tool 5 and moves in the opposite direction for a short distance.During the reverse movement of the cutter arm 112, the second motor 6 starts to rotate. When the second motor 6 starts rotating, it causes the oiling assembly 3 to rotate, providing oil protection to the cutter 5. Simultaneously, the rotation of the oiling assembly 3 changes the position of the cutter 5, placing the required cutter 5 at the top of the clamping assembly 4. Once the required cutter 5 is at the top of the clamping assembly 4, the cutter arm 112 moves back towards the clamping assembly 4 and assembles with the cutter 5. Finally, the cutter arm 112 pulls the cutter 5 out of the clamping assembly 4 and continues processing the workpiece.

[0022] Please see Figures 2-8This invention provides a technical solution: a CNC machine tool for gantry frame manufacturing and its control method. The auxiliary plate 2 has an annular groove 21 on one side, a first placement groove 23 in the middle of the annular groove 21, and a first oil pad 22 in an arc shape on one side above the annular groove 21. A placement hole 211 is formed in the middle of the first placement groove 23, and a rotating groove 212 is formed directly below the annular groove 21. The oiling assembly 3 includes a first clamping plate 31, an oil storage ring 32 inside the first clamping plate 31, an oiling roller 33 rotatably connected to the first clamping plate 31, a first oil storage rod 35 fixedly connected to the first clamping plate 31, and an oil storage box 36 on one side of the first clamping plate 31. A set of annular slots is provided on the first clamping plate 31. A set of annular oil brushing rollers 33 are rotatably connected to the slots of the first clamping plate 31. The oil brushing rollers 33 are rotatably connected to the mounting base 331. A second oil pad 332 is provided on the inner side of the mounting base 331. A first spring 333 is fixedly connected to the bottom of the mounting base 331. The second oil pads 332 on the two mounting bases 331 closest to the oil storage ring 32 in the slots of the first clamping plate 31 are connected to the oil storage ring 32 through hoses. The bottom of the mounting base 331 furthest from the oil storage ring 32 is fixedly connected to the first piston rod 351 of the first oil storage rod 35. The first oil storage rod 35 is connected to the sealing cover plate 361 of the oil storage box 36 through an oil pipe. A sealing groove is provided on the side of the oil storage box 36. The sealing cover plate 361 is rotatably connected to the oil storage box 36 through the sealing groove. The oil pipe between the first oil storage rod 35 and the oil storage box 36 passes through the first clamping plate 31. A rotating ring 311 is provided on one side of the first clamping plate 31. A second placement groove 312 is provided in the middle of the rotating ring 311. The first clamping plate 31 and the auxiliary plate 2 are rotatably connected through the rotating ring 311 and the annular groove 21. One side of the oil storage box 36 is rotatably connected to the second placement groove 312. The other side of the oil storage box 36 is fixedly connected to the first placement groove 23. A set of annular array sawtooth structures is provided on the side of the first clamping plate 31. The crank connecting rod 61 is rotatably connected to the rotating groove 212 of the auxiliary plate 2. One end of the clamping plate 31 is fixedly connected to an auxiliary gear 611, which meshes with the first clamping plate 31. When machining workpieces on a CNC machine tool, some workpieces require multiple cutting heads. Changing these heads requires manual operation, which carries the risk of injury from the cutting head. Furthermore, after changing the cutting head, the operator needs to clean it and apply anti-rust oil, a tedious and time-consuming process. This embodiment of the invention solves these problems. The specific implementation is as follows: When the cutting arm 112 inserts the cutting tool 5 into the slot of the first clamping plate 31, the cutting arm 112 separates from the cutting tool 5. Simultaneously, the cutting teeth of the cutting tool 5 are inserted between three oiling rollers 33, squeezing the three oiling rollers 33. When the oiling rollers 33 are squeezed, they move into the interior of the first clamping plate 31.Next, the second motor 6 starts to rotate. When the second motor 6 rotates, it drives the auxiliary gear 611 to rotate via the crank connecting rod 61. When the auxiliary gear 611 rotates, it drives the first clamping plate 31 to rotate. When the first clamping plate 31 rotates, it drives the second clamping plate 41 to rotate, thereby causing the inserted tool 5 to rotate. When the tool 5 rotates, it drives the oil brushing roller 33 on its surface to rotate. When the oil brushing roller 33 rotates, it rolls on the second oil pad 332, applying the oil on the second oil pad 332 to the tool 5. At the same time, since the cutting edge of the tool 5 is attached to the first oil pad 22, when the first clamping plate 31 rotates, the cutting edge of the tool 5 slides on the first oil pad 22. During this process, the first oil pad 22 applies oil to the cutting edge of the tool 5.

[0023] Please see Figure 9 This invention provides a technical solution: a CNC machine tool for manufacturing gantry frames. The clamping assembly 4 includes a second clamping plate 41, on which a set of annular array slots are provided. A clamping cylinder 42 is rotatably connected to the slots of the second clamping plate 41. Annular array clamping blocks 421 are provided in the clamping cylinder 42. The bottom of the clamping blocks 421 is connected to the inner wall of the clamping cylinder 42 by springs. A trigger rail 43 is provided on the top of the second clamping plate 41. The trigger rail 43 is fixedly connected to an auxiliary plate 2. A set of annular array sawtooth structures is provided on the side wall of the clamping cylinder 42. One side of the sawtooth structure in the clamping cylinder 42 is located outside the second clamping plate 41. 43 is arc-shaped, and the inner wall of the trigger rail 43 is provided with a set of evenly spaced arc-shaped sawtooth structures. The clamping cylinder 42 is connected to the inner wall of the trigger rail 43 through the sawtooth structure. When the second clamping plate 41 rotates, the clamping cylinder 42 located above the second clamping plate 41 contacts the trigger rail 43. Since the trigger rail 43 is arc-shaped, the clamping cylinder 42 will rotate under the action of the trigger rail 43. Since the handle of the tool 5 is clamped by the clamping block 421 in the clamping cylinder 42, the tool 5 will rotate synchronously with the clamping cylinder 42. When the tool 5 rotates, the oil brushing roller 33 located on the tool 5 will rotate synchronously with the tool 5 and apply rust-preventive oil to the tool 5.

[0024] Please see Figures 10 to 11This invention provides a technical solution: a CNC machine tool for gantry frame manufacturing and its control method. The oil supply assembly 7 includes a second oil storage rod 71, a piston block 72 slidably connected to the upper part of the second oil storage rod 71, a support rod 73 slidably connected to the piston block 72, a second spring 731 disposed between the bottom of the support rod 73 and the bottom of the cavity in the piston block 72, a third oil storage rod 74 fixedly connected to the bottom of the second oil storage rod 71, a third piston rod 741 disposed in the third oil storage rod 74, and a protruding top disposed on the top of the third piston rod 741. 742, the convex top 742 is slidably connected to the lower part of the second oil reservoir 71. The two sides of the second oil reservoir 71 are respectively connected to an outlet valve 711 and an inlet valve 712 via hoses. The outlet valve 711 is connected to the first oil pad 22 of the auxiliary plate 2 via a hose, and the inlet valve 712 is connected to the oil tank via a hose. The first oil reservoir 35 is connected to the third oil reservoir 74 via a hose. When the cutter 5 is inserted into the first clamping plate 31, the cutter 5 will squeeze the brushing roller 33. Because the first piston rod 351 of the first oil reservoir 35 is located at the brushing roller 3... At the bottom of position 3, the first piston rod 351 will squeeze the oil in the first oil reservoir 35. The oil in the first oil reservoir 35 will enter the oil reservoir 36 through the oil pipe, and the oil in the oil reservoir 36 will be transferred to the third oil reservoir 74 through the hose. When the oil enters the third oil reservoir 74, it will squeeze the third piston rod 741, causing the third piston rod 741 to move downward. When the third piston rod 741 moves downward, the height of the convex top 742 in the second oil reservoir 71 will decrease, and the rust-preventive oil in the oil tank will be drawn in through the liquid inlet valve 712. When the oil is taken into the second oil reservoir 71, the distance between the piston block 72 and the convex top 742 is related to the diameter of the cutter 5. When the diameter of the cutter 5 is larger, the distance between the piston block 72 and the convex top 742 is larger, and vice versa. When the distance between the piston block 72 and the convex top 742 is larger, more oil is squeezed out of the second oil reservoir 71 when the piston block 72 descends. The squeezed oil enters the first oil pad 22 through the hose. At the same time, the cutting surface of the cutter 5 will slide on the first oil pad 22 to complete the oiling of the cutting surface of the cutter 5.

[0025] This application also provides another technical solution: a control method for a CNC machine tool for gantry manufacturing, the control method comprising the following steps: S1. The operator clamps the workpiece on the fixture 13 and places the cutting tool 5 required for processing the workpiece on the clamping assembly 4; S2. The operator starts the equipment, and the cutter arm 112 begins to rotate under the action of the first motor 113, and moves on the gantry body 11 at the same time, so that the cutter arm 112 gradually approaches the clamping assembly 4. S3. After the tool 5 located at the top of the clamping assembly 4 is installed on the tool arm 112, the tool arm 112 begins to process the workpiece. S4. When the cutter arm 112 needs to replace the cutter 5, the cutter arm 112 will reinsert the cutter 5 into the clamping assembly 4, and during the movement, the nozzle 121 will flow out cleaning fluid to remove impurities from the cutter 5. S5. When the tool 5 is inserted into the clamping assembly 4, the oiling assembly 3 will oil the tool 5 and, under the action of the second motor 6, change the position of the tool 5 so that the tool 5 to be used is located at the top of the clamping assembly 4.

[0026] Working principle: When machining a workpiece, the operator first clamps the workpiece onto the fixture 13 and inserts the cutting tool 5 required for machining the workpiece into the corresponding clamping assembly 4. Then, the tool arm 112 rotates under the control of the microcontroller and gradually approaches the clamping assembly 4. Next, one end of the tool arm 112 inserts into the uppermost cutting tool 5 in the clamping assembly 4, and the cutting tool 5 is pulled out of the clamping assembly 4. After the tool arm 112 and the cutting tool 5 are combined, the tool arm 112 will machine the workpiece by controlling the displacement of the cutting tool 5. When the tool arm 112 needs to change the cutting tool 5, the tool arm 112 starts to rotate. After rotating 90 degrees, the blade 5 gradually approaches the clamping assembly 4. When the blade 5 moves below the nozzle 121, the microcontroller controls the control valve 12 to open, allowing cleaning fluid to flow from the nozzle 121 and rinse the blade 5 below, removing debris from its surface. After the blade 5 has been cleaned, the microcontroller controls the control valve 12 to close. At this time, the blade arm 112 will briefly rotate the blade 5 to remove excess liquid from its surface. As the blade arm 112 moves, it will reinsert the blade 5 into the slot located at the top of the clamping assembly 4. Once the blade 5 is inserted into the slot, the blade arm 112 and the blade... Tool 5 separates, and tool arm 112 moves in the opposite direction for a short distance. During this reverse movement, the second motor 6 starts to rotate. When the second motor 6 starts to rotate, it causes the oiling assembly 3 to rotate, providing oil protection to tool 5. Simultaneously, the rotation of the oiling assembly 3 changes the position of tool 5, placing the tool 5 required for machining at the top of clamping assembly 4. Once the tool 5 is at the top of clamping assembly 4, tool arm 112 moves back towards clamping assembly 4 and assembles with tool 5. Finally, tool arm 112 pulls tool 5 out of clamping assembly 4 and continues machining. When machining workpieces on a CNC machine tool, some workpieces require multiple cutting heads. Changing these heads requires manual operation, which carries the risk of injury from the cutting head. Furthermore, after changing the cutting head, the operator needs to clean it and apply anti-rust oil, a tedious and time-consuming process. This embodiment of the invention solves these problems. The specific implementation is as follows: when the cutting arm 112 inserts the cutting tool 5 into the slot of the first clamping plate 31, the cutting arm 112 separates from the cutting tool 5, and simultaneously, the cutting teeth of the cutting tool 5 are inserted between the three oiling rollers 33. The three brushing rollers 33 are squeezed, and when they are squeezed, they move into the interior of the first clamping plate 31. Then, the second motor 6 starts to rotate. When the second motor 6 rotates, it drives the auxiliary gear 611 to rotate through the crank connecting rod 61. When the auxiliary gear 611 rotates, it drives the first clamping plate 31 to rotate. When the first clamping plate 31 rotates, it drives the second clamping plate 41 to rotate, thereby causing the inserted tool 5 to rotate. When the tool 5 rotates...This will cause the oiling roller 33 on its surface to rotate. When the oiling roller 33 rotates, it will roll on the second oil pad 332 and apply the oil on the second oil pad 332 to the cutting tool 5. At the same time, since the cutting edge of the cutting tool 5 is attached to the first oil pad 22, when the first clamping plate 31 rotates, the cutting edge of the cutting tool 5 will slide on the first oil pad 22. During this process, the first oil pad 22 will apply oil to the cutting edge of the cutting tool 5. When the second clamping plate 41 rotates, the clamping cylinder 42 located above the second clamping plate 41 and the trigger... When the trigger rail 43 contacts, the clamping cylinder 42 rotates under the action of the trigger rail 43 because the trigger rail 43 is arc-shaped. Since the tool shank of the tool 5 is clamped by the clamping block 421 in the clamping cylinder 42, the tool 5 will rotate synchronously with the clamping cylinder 42. When the tool 5 rotates, the oil brushing roller 33 located on the tool 5 will rotate synchronously with the tool 5, and at the same time, it will apply rust-preventive oil to the tool 5. When the tool 5 is inserted into the first clamping plate 31, the tool 5 will squeeze the oil brushing roller 33. Since the first piston rod 351 of the first oil storage rod 35 is located on the brushing roller 33, the tool 5 will squeeze the oil brushing roller 33. At the bottom of the oil roller 33, the first piston rod 351 will squeeze the oil in the first oil reservoir 35. The oil in the first oil reservoir 35 will enter the oil reservoir 36 through the oil pipe, and the oil in the oil reservoir 36 will be transferred to the third oil reservoir 74 through the hose. When the oil enters the third oil reservoir 74, it will squeeze the third piston rod 741, causing the third piston rod 741 to move downward. When the third piston rod 741 moves downward, the height of the convex top 742 in the second oil reservoir 71 will decrease, and the rust-preventive oil in the oil tank will be released through the inlet valve 712. Oil is drawn into the second oil reservoir 71. Since the distance between the piston block 72 and the convex top 742 is related to the diameter of the cutter 5, a larger diameter cutter 5 results in a larger distance between the piston block 72 and the convex top 742, and vice versa. A larger distance between the piston block 72 and the convex top 742 means more oil is squeezed out of the second oil reservoir 71 when the piston block 72 descends. The squeezed-out oil enters the first oil pad 22 through the hose. Simultaneously, the cutting surface of the cutter 5 slides across the first oil pad 22, completing the oiling of the cutting surface of the cutter 5.

[0027] Contents not described in detail in this specification are prior art known to those skilled in the art. In the description of this invention, unless otherwise stated, "a plurality of" means two or more. Terms such as "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," and "tail" indicate orientations or positional relationships based on the accompanying drawings, and are used only for ease of description and simplification, not to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention. Furthermore, terms such as "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0028] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A CNC machine tool for manufacturing gantry cranes, characterized in that, The system includes a mounting plate (1), to which a gantry frame body (11) is fixedly connected. A support plate (111) is slidably connected to the crossbeam of the gantry frame body (11). A cutter arm (112) is rotatably connected to one side of the bottom of the support plate (111), and a first motor (113) is fixedly connected to the other side of the bottom of the support plate (111). The output shaft of the first motor (113) passes through the support plate (111) and is fixedly connected to one side of the cutter arm (112). 1) A control valve (12) is provided on one side of the gantry frame body (11). The control valve (12) is fixedly connected to the bottom of the crossbeam in the gantry frame body (11). Water pipes are connected to both sides of the control valve (12). One side of the control valve (12) is connected to the nozzle (121) through the water pipe. A water tank (14) is provided directly below the nozzle (121). The water tank (14) is fixedly connected to the mounting plate (1). A clamp (13) is provided on one side of the water tank (14). The clamp (13) is used to clamp the workpiece. The gantry frame body (11) is fixedly connected to the bottom of the crossbeam in the gantry frame body (11). Water pipes are connected to both sides of the control valve (12). One side of the control valve (12) is connected to the nozzle (121) through the water pipe. A water tank (14) is provided directly below the nozzle (121). The water tank (14) is fixedly connected to the mounting plate (1). A clamp (13) is provided on one side of the water tank (14). The clamp (13) is used to clamp the workpiece. An auxiliary plate (2) is fixedly connected to one side of the frame body (11). An oiling assembly (3) is rotatably connected to one side of the auxiliary plate (2). A clamping assembly (4) is fixedly connected to one side of the oiling assembly (3) via a connecting post (313). A set of circular array cutters (5) are inserted into the oiling assembly (3) and the clamping assembly (4). A second motor (6) is provided on the other side of the auxiliary plate (2). A crank connecting rod (61) is fixedly connected to the output shaft of the second motor (6). An auxiliary rod (612) is rotatably connected to the top of the auxiliary rod (612), and an oil supply assembly (7) is rotatably connected to the bottom of the auxiliary rod (612). The oil brushing assembly (3) is used to brush oil on the tool (5), the clamping assembly (4) is used to clamp the handle of the tool (5), and the oil supply assembly (7) is used to supply rust-preventive oil to the auxiliary plate (2). A single-chip microcomputer controller is provided at the bottom of the mounting plate (1). The first motor (113) is electrically connected to the single-chip microcomputer controller, and the control valve (12) is electrically connected to the single-chip microcomputer controller. An annular groove (21) is provided on one side of the auxiliary plate (2), a first placement groove (23) is provided in the middle of the annular groove (21), a first oil pad (22) is provided on one side above the annular groove (21), the first oil pad (22) is arc-shaped, a placement hole (211) is provided in the middle of the first placement groove (23), and a rotating groove (212) is provided directly below the annular groove (21). The oil brushing assembly (3) includes a first clamping plate (31), an oil storage ring (32) is provided inside the first clamping plate (31), an oil brushing roller (33) is rotatably connected in the first clamping plate (31), a first oil storage rod (35) is fixedly connected in the first clamping plate (31), and an oil storage box (36) is provided on one side of the first clamping plate (31). The oil delivery assembly (7) includes a second oil reservoir rod (71), a piston block (72) is slidably connected to the upper part of the second oil reservoir rod (71), a support rod (73) is slidably connected in the piston block (72), a second spring (731) is provided between the bottom of the support rod (73) and the bottom of the cavity in the piston block (72), a third oil reservoir rod (74) is fixedly connected to the bottom of the second oil reservoir rod (71), a third piston rod (741) is provided in the third oil reservoir rod (74), a convex top (742) is provided on the top of the third piston rod (741), and the convex top (742) is slidably connected to the lower part of the second oil reservoir rod (71) in a sealed manner. The second oil reservoir rod (71) has an outlet valve (711) and an inlet valve (712) connected to its two sides by hoses. The outlet valve (711) is connected to the first oil pad (22) of the auxiliary plate (2) by hoses, and the inlet valve (712) is connected to the oil tank by hoses. The first oil reservoir rod (35) is connected to the third oil reservoir rod (74) by hoses.

2. The CNC machine tool for gantry frame manufacturing according to claim 1, characterized in that: The first clamping plate (31) has a set of annular array slots. A set of annular array oil brushing rollers (33) are rotatably connected to the slots of the first clamping plate (31). The oil brushing rollers (33) are rotatably connected to the mounting base (331). A second oil pad (332) is provided on the inner side of the mounting base (331). A first spring (333) is fixedly connected to the bottom of the mounting base (331). The second oil pads (332) on the two mounting bases (331) closest to the oil storage ring (32) in the slots of the first clamping plate (31) are connected to the first spring. The hose is connected to the oil storage ring (32), and the bottom of the mounting base (331) away from the oil storage ring (32) is fixedly connected to the first piston rod (351) of the first oil storage rod (35). The first oil storage rod (35) is connected to the sealing cover plate (361) of the oil storage box (36) through the oil pipe. The sealing cover plate (361) has a sealing groove on its side. The sealing cover plate (361) is rotatably connected to the oil storage box (36) through the sealing groove. The oil pipe between the first oil storage rod (35) and the oil storage box (36) passes through the first clamping plate (31).

3. The CNC machine tool for gantry frame manufacturing according to claim 2, characterized in that: A rotating ring (311) is provided on one side of the first clamping plate (31), and a second placement groove (312) is provided in the middle of the rotating ring (311). The first clamping plate (31) and the auxiliary plate (2) are rotatably connected through the rotating ring (311) and the annular groove (21). One side of the oil storage box (36) is rotatably connected to the second placement groove (312), and the other side of the oil storage box (36) is fixedly connected to the first placement groove (23). A set of annular array sawtooth structures is provided on the side of the first clamping plate (31). The crank connecting rod (61) is rotatably connected to the rotating groove (212) of the auxiliary plate (2). One end of the crank connecting rod (61) is fixedly connected to an auxiliary gear (611), and the auxiliary gear (611) meshes with the first clamping plate (31).

4. The CNC machine tool for gantry frame manufacturing according to claim 3, characterized in that: The clamping assembly (4) includes a second clamping plate (41), on which a set of annular array slots are provided. A clamping cylinder (42) is rotatably connected to the slots of the second clamping plate (41). An annular array of clamping blocks (421) is provided in the clamping cylinder (42). The bottom of the clamping blocks (421) is connected to the inner wall of the clamping cylinder (42) by a spring. Some of the top of the second clamping plate (41) is provided with trigger rails (43), which are fixedly connected to the auxiliary plate (2).

5. A CNC machine tool for manufacturing gantry frames according to claim 4, characterized in that: The side wall of the clamping cylinder (42) is provided with a set of annular array sawtooth structures. The sawtooth structure on one side of the clamping cylinder (42) is located outside the second clamping plate (41). The trigger rail (43) is arc-shaped. The inner wall of the trigger rail (43) is provided with a set of arc-shaped evenly spaced sawtooth structures. The clamping cylinder (42) is engaged with the inner wall of the trigger rail (43) through the sawtooth structure.

6. A control method for a CNC machine tool for gantry frame manufacturing, applicable to the CNC machine tool for gantry frame manufacturing as described in any one of claims 1-5, characterized in that, The control method includes the following steps: S1. The operator clamps the workpiece on the fixture (13) and places the cutting tool (5) required for processing the workpiece on the clamping assembly (4); S2. The operator starts the equipment, and the cutter arm (112) begins to rotate under the action of the first motor (113) and moves on the gantry body (11) at the same time, so that the cutter arm (112) gradually approaches the clamping assembly (4). S3. After the tool (5) located at the top of the clamping assembly (4) is installed on the tool arm (112), the tool arm (112) begins to process the workpiece. S4. When the cutter arm (112) needs to replace the cutter (5), the cutter arm (112) will reinsert the cutter (5) into the clamping assembly (4), and during the movement, the nozzle (121) will release cleaning fluid to remove impurities from the cutter (5). S5. When the tool (5) is inserted into the clamping assembly (4), the oiling assembly (3) will apply oil to the tool (5) and, under the action of the second motor (6), change the position of the tool (5) so that the tool (5) to be used is located at the top of the clamping assembly (4).

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