Combined machine tool for metal cutting

Abstract

The invention discloses a combined machine tool for metal cutting, and relates to the technical field of metal cutting machine tools. Comprising a machine tool body, a workbench fixedly connected into the machine tool body, a fixed support fixedly connected to the surface of the workbench, a first servo motor detachably connected to the top of the fixed support, and a first lead screw fixedly connected to the output end of the first servo motor. The first moving block is in threaded connection to the outer surface of the first lead screw, the switching driving mechanism is fixedly connected to one end of the first moving block, and two first fixing plates are symmetrically arranged on one side of the switching driving mechanism. According to the combined machine tool for metal cutting, the milling assembly and the polishing assembly can be rapidly switched through cooperation of the switching driving mechanism and the clamping assembly, the machining efficiency is improved, and the cost is reduced; the cooling assembly combines air cooling and liquid cooling to guarantee the machining precision and the service life of the cutter; the protection assembly prevents chippings from splashing; and the feeding mechanism ensures the machining quality.

Description

Technical Field

[0001] The present invention relates to the technical field of metal cutting machine tools, and particularly relates to a combined machine tool for metal cutting. Background Art

[0002] In the field of metal cutting processing, traditional metal cutting machine tools have obvious defects. On the one hand, their functions are relatively single. Usually, one machine tool can only perform a certain processing operation such as milling or grinding. In actual production, if it is necessary to switch between different processing technologies, it is necessary to frequently replace the machine tool or tool. This process is not only cumbersome and time-consuming, but also significantly increases the production cost and seriously reduces the processing efficiency. On the other hand, during milling processing, a large amount of heat is generated due to the high-speed friction between the tool and the workpiece. Most of the existing cooling methods are single spray cutting fluid, and the cooling effect is not good. This easily causes the tool to wear more severely, shortens the service life of the tool, and at the same time, the workpiece will also have a decrease in processing accuracy due to thermal deformation, bringing certain adverse effects to the use process. In order to solve the deficiencies of the existing technology, we propose a combined machine tool for metal cutting. Summary of the Invention

[0003] The main purpose of the present invention is to provide a combined machine tool for metal cutting, which can effectively solve the problems in the background art.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is as follows: A combined machine tool for metal cutting, including a machine tool body, a workbench fixedly connected inside the machine tool body, a fixed support fixedly connected to the surface of the workbench, a first servo motor detachably connected to the top of the fixed support, a first lead screw fixedly connected to the output end of the first servo motor, a first moving block threadedly connected to the outer surface of the first lead screw, and a switching drive mechanism fixedly connected to one end of the first moving block. Two first fixing plates are symmetrically arranged on one side of the switching drive mechanism, and two second fixing plates are symmetrically arranged on the other side of the switching drive mechanism. A milling mechanism is arranged between the two first fixing plates, and a grinding assembly and a protection assembly are arranged between the two second fixing plates; The switching drive mechanism includes a moving box fixedly connected to the front end of the first moving block, a second servo motor detachably connected to the top of the moving box, a first rotating rod fixedly connected to the output end of the second servo motor, a first gear welded to the outer surface of the first rotating rod, two second gears symmetrically meshed on both sides of the first gear, and a second lead screw welded to the inside of the second gear. Bellows protective covers are arranged on both sides of the moving box; The milling mechanism includes a milling assembly and a cooling assembly fixedly connected to one side of the milling assembly. Clamping assemblies are fixedly connected to the front and rear ends of the milling assembly and the front and rear ends of the grinding assembly; A longitudinal feed mechanism is fixedly installed on the surface of the workbench. A transverse feed mechanism is installed at the upper end of the longitudinal feed mechanism, and a vise is installed at the upper end of the transverse feed mechanism.

[0005] Preferably, the milling component includes a second moving block threadedly connected to the outer surface of one of the second lead screws. One side of the second moving block is welded with a fixed box. The top of the fixed box is detachably connected with a third servo motor. The output end of the third servo motor is provided with a first connecting shaft. The other end of the first connecting shaft penetrates through the fixed box and is provided with a tool holder. A tool is detachably installed below the tool holder.

[0006] Preferably, the cooling component includes a connecting box fixedly connected to one side of the fixed box. A plurality of filter nets are detachably embedded on the surface of the connecting box. A third gear is fixedly connected to the outer surface of the first connecting shaft. A transmission toothed belt is meshed with the outer surface of the third gear. The other end of the transmission toothed belt is internally meshed with a fourth gear. A rotating shaft is fixedly connected to the center position of the fourth gear. A second rotating rod is fixedly connected to the lower end of the rotating shaft. A support plate is fixedly connected inside the connecting box. A bearing is embedded in the center position of the support plate. Two groups of fan blades are fixedly connected to the outer surface of the second rotating rod. A liquid storage box is arranged inside the connecting box. One end of the liquid storage box is fixedly communicated with an oil nozzle. The other end of the oil nozzle penetrates through the connecting box. The other end of the liquid storage box is fixedly connected with a liquid spraying head.

[0007] Preferably, the inside of the connecting box communicates with the inside of the fixed box, and the second rotating rod is rotatably connected with the bearing.

[0008] Preferably, a third moving block is threadedly connected to the outer surface of the other second lead screw. The grinding component includes a connecting plate fixedly connected to one side of the third moving block. The upper end of the connecting plate is detachably connected with a fourth servo motor. The output end of the fourth servo motor penetrates through the connecting plate and is fixedly connected with a second connecting shaft. A grinding disc is detachably connected to the lower end of the second connecting shaft.

[0009] Preferably, the protection component includes a plurality of rectangular through grooves symmetrically opened on the surfaces of two second fixing plates. A guide rod is fixedly installed in each of the plurality of rectangular through grooves. A first spring is sleeved on the outer surface of the guide rod. A fourth moving block is slidably connected to the outer surface of the guide rod. A protection frame is fixedly connected between the plurality of fourth moving blocks.

[0010] Preferably, the clamping component includes a plurality of connecting blocks fixedly connected to the front and rear ends of the milling component and the grinding component. A second spring is detachably connected to the inner cavity of the connecting block. A limiting plate is movably connected to the inner cavity of the connecting block. A clamping block is fixedly connected to one end of the limiting plate.

[0011] Preferably, rectangular sliding grooves are provided on one side surface of each of the two first fixing plates and the two second fixing plates. Two clamping grooves are symmetrically provided in each of the plurality of rectangular sliding grooves. The connecting block is slidably connected in the rectangular sliding groove. Both the upper and lower ends of the clamping block are inclined surfaces, and the clamping block is clamped with the clamping groove.

[0012] Preferably, the two second lead screws have opposite thread directions.

[0013] Compared with the prior art, the present invention has the following beneficial effects: In this combined machine tool for metal cutting, through the provided switching drive mechanism, the second servo motor drives the first rotating rod, the first gear, the second gear and the second lead screw to rotate, so as to realize the rapid switching of the milling mechanism and the grinding assembly. The two second lead screws have opposite thread directions. During the switching, the milling mechanism and the grinding assembly can move synchronously and in opposite directions. Cooperating with the clamping assembly, during the metal cutting process, if it is necessary to change the processing method, manually press the clamping block to retract it into the connecting block, and start the switching drive mechanism to complete the position switching of the milling mechanism and the grinding assembly. After moving to the appropriate position, the clamping block is reinserted into the corresponding clamping groove. The whole switching process is fast and convenient, greatly improving the efficiency of metal cutting processing. There is no need to frequently replace the machine tool or tool like the traditional method, saving processing time and cost.

[0014] In this combined machine tool for metal cutting, during the milling process, the first connecting shaft rotates to drive the third gear to rotate. Through the transmission belt, the fourth gear, the rotating shaft and the second rotating rod rotate, and then drive the fan blades to rotate to generate air flow for air cooling of the tool and the processing area. At the same time, the liquid storage box, the oil nozzle and the liquid spraying head spray the processing liquid on the tool. The combination of air cooling and liquid cooling can effectively reduce the temperature of the tool and the workpiece, reduce thermal deformation and improve the processing accuracy. The filter screen on the surface of the connection box can prevent dust and other impurities from entering, ensure the normal operation of the cooling system and extend the service life of the tool.

[0015] The protective component of this combined machine tool for metal cutting plays an important role during the grinding process. When the grinding assembly moves downward, the connecting plate contacts and presses down the protective frame to make it move synchronously. When the grinding disc contacts the surface of the workpiece for grinding, the protective frame can prevent the generated debris from splashing, protecting the safety of the operator and the cleanliness of the working environment. After the grinding is completed, under the elastic force of the first spring, the protective frame can quickly reset to prepare for the next processing.

[0016] This combined machine tool for metal cutting is equipped with a longitudinal feed mechanism and a transverse feed mechanism installed on the surface of the workbench. It is used in conjunction with a vise. Before machining, the position of the workpiece can be precisely adjusted to place the workpiece in an area convenient for machining. During the machining process, the longitudinal feed mechanism and the transverse feed mechanism can work together according to the machining requirements to control the feed speed and direction of the workpiece, achieving precise milling and grinding of the workpiece and ensuring the machining quality. Brief Description of the Drawings

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the overall structure of the milling and grinding mechanism of the present invention; Figure 3 is a schematic diagram of the overall structure of the milling and grinding mechanism of the present invention from another angle; Figure 4 is a schematic diagram of the internal structure of the moving box of the present invention; Figure 5 is of the present invention Figure 4 schematic diagram of the structure at position A in Figure 6 is a partial sectional view of the milling mechanism of the present invention; Figure 7 is a schematic diagram of the structure of the grinding component and the protective component of the present invention; Figure 8 is a partial sectional view of the clamping component of the present invention.

[0018] In the figure: 1. Machine tool body; 11. Workbench; 12. Fixed support; 13. First servo motor; 14. First lead screw; 15. First moving block; 16. Longitudinal feed mechanism; 17. Transverse feed mechanism; 18. Parallel vice; 19. Bellows protective cover; 2. Switching drive mechanism; 21. Moving box; 22. Second servo motor; 23. First rotating rod; 24. First gear; 25. Second gear; 26. Second lead screw; 27. First fixed plate; 28. Second fixed plate; 29. Rectangular sliding groove; 30. Clamping groove; 3. Milling mechanism; 31. Milling assembly; 311. Second moving block; 312. Fixed box; 313. Third servo motor; 314. First connecting shaft; 315. Tool holder; 316. Tool; 32. Cooling assembly; 321. Connecting box; 322. Filter screen; 323. Third gear; 324. Transmission belt; 325. Fourth gear; 326. Rotating shaft; 327. Second rotating rod; 328. Support plate; 329. Bearing; 330. Fan blade; 33. Liquid storage box; 34. Oil nozzle; 35. Liquid spraying head; 4. Grinding assembly; 40. Third moving block; 41. Connecting plate; 42. Fourth servo motor; 43. Second connecting shaft; 44. Grinding disc; 5. Protection assembly; 51. Rectangular through groove; 52. Guide rod; 53. First spring; 54. Fourth moving block; 55. Protection frame; 6. Clamping assembly; 61. Connecting block; 62. Second spring; 63. Limiting plate; 64. Clamping block. Detailed implementation manners

[0019] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0020] Example 1, as Figure 1 、 Figure 2 、 Figure 3 and Figure 4 shown, a combined machine tool for metal cutting includes a machine tool body 1, a workbench 11 fixedly connected inside the machine tool body 1, a fixed support 12 fixedly connected to the surface of the workbench 11, a first servo motor 13 detachably connected to the top of the fixed support 12, a first lead screw 14 fixedly connected to the output end of the first servo motor 13, a first moving block 15 threadedly connected to the outer surface of the first lead screw 14, and a switching drive mechanism 2 fixedly connected to one end of the first moving block 15. Two first fixed plates 27 are symmetrically arranged on one side of the switching drive mechanism 2, and two second fixed plates 28 are symmetrically arranged on the other side of the switching drive mechanism 2. A milling mechanism 3 is arranged between the two first fixed plates 27, and a grinding assembly 4 is arranged between the two second fixed plates 28; A longitudinal feed mechanism 16 is fixedly installed on the surface of the workbench 11, a transverse feed mechanism 17 is installed on the upper end of the longitudinal feed mechanism 16, and a parallel vice 18 is installed on the upper end of the transverse feed mechanism 17.

[0021] It should be noted that in the initial preparation stage, the metal workpiece to be processed is first placed on the vise 18, and the workpiece is firmly clamped by the vise 18. At the same time, the longitudinal feed mechanism 16 and the transverse feed mechanism 17 are controlled to adjust the position of the vise 18 so that the workpiece is in an area convenient for processing. Then, the first servo motor 13 is started, and the first servo motor 13 drives the first lead screw 14 to rotate, causing the first moving block 15 to move horizontally along the first lead screw 14, thereby driving the switching drive mechanism 2, the milling mechanism 3, and the grinding assembly 4 to move to appropriate initial positions.

[0022] Embodiment 2, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 shown, a combined machine tool for metal cutting, the switching drive mechanism 2 includes a moving box 21 fixedly connected to the front end of the first moving block 15, a second servo motor 22 detachably connected to the top of the moving box 21, a first rotating rod 23 fixedly connected to the output end of the second servo motor 22, a first gear 24 welded to the outer surface of the first rotating rod 23, two second gears 25 symmetrically engaged on both sides of the first gear 24, and a second lead screw 26 welded to the inside of the second gear 25. Bellows-type protective covers 19 are provided on both sides of the moving box 21; The milling assembly 31 includes a second moving block 311 threadedly connected to the outer surface of one of the second lead screws 26. One side of the second moving block 311 is welded with a fixed box 312. The top of the fixed box 312 is detachably connected with a third servo motor 313. The output end of the third servo motor 313 is provided with a first connecting shaft 314. The other end of the first connecting shaft 314 penetrates through the fixed box 312 and is provided with a tool holder 315. A tool 316 is detachably installed below the tool holder 315.

[0023] It should be noted that when performing milling processing, the second servo motor 22 is started. The second servo motor 22 drives the first rotating rod 23 to rotate. The first rotating rod 23 drives the first gear 24 to rotate. The first gear 24 meshes with the two second gears 25 on both sides, so that the two second lead screws 26 rotate synchronously. One of the second lead screws 26 drives the second moving block 311 to move downward, thereby bringing the milling assembly 31 closer to the workpiece. Then, the third servo motor 313 is started. The third servo motor 313 drives the first connecting shaft 314 to rotate. The first connecting shaft 314 drives the tool holder 315 and the tool 316 to rotate at high speed, and starts to perform milling processing on the workpiece. During the milling process, the longitudinal feed mechanism 16 and the transverse feed mechanism 17 work together according to the processing requirements to control the feed speed and direction of the workpiece, and achieve precise milling of the workpiece.

[0024] Embodiment 3, asFigure 2 , Figure 3 , Figure 4 and Figure 6 As shown in Figure 2 , Figure 3 , Figure 4 and Figure 6 , a combined machine tool for metal cutting, the cooling component 32 includes a connection box 321 fixedly connected to one side of the fixed box 312. A plurality of filter nets 322 are detachably embedded on the surface of the connection box 321. A third gear 323 is fixedly connected to the outer surface of the first connection shaft 314. A transmission belt 324 is meshed with the outer surface of the third gear 323. The inner surface of the other end of the transmission belt 324 is meshed with a fourth gear 325. A rotating shaft 326 is fixedly connected to the center position of the fourth gear 325. A second rotating rod 327 is fixedly connected to the lower end of the rotating shaft 326. A support plate 328 is fixedly connected inside the connection box 321. A bearing 329 is embedded in the center position of the support plate 328. Two groups of fan blades 330 are fixedly connected to the outer surface of the second rotating rod 327. A liquid storage box 33 is arranged inside the connection box 321. One end of the liquid storage box 33 is fixedly communicated with an oil nozzle 34. The other end of the oil nozzle 34 penetrates through the connection box 321. The other end of the liquid storage box 33 is fixedly connected with a liquid spraying head 35; The connection box 321 is internally communicated with the fixed box 312, and the second rotating rod 327 is rotatably connected with the bearing 329.

[0025] It should be noted that during the milling process, the cooling component 32 functions. As the first connection shaft 314 rotates, the third gear 323 fixed on its outer surface rotates synchronously. The third gear 323 drives the fourth gear 325 to rotate through the transmission belt 324. The fourth gear 325 drives the rotating shaft 326 and the second rotating rod 327 to rotate. The two groups of fan blades 330 on the second rotating rod 327 rotate accordingly. The airflow generated by the rotation of the fan blades 330 passes through the internal space where the connection box 321 is communicated with the fixed box 312, and air-cools and cools the cutting tool 316 and the machining area. Cooperating with the oil nozzle 34, the liquid storage box 35 and the liquid spraying head 35 to spray the machining liquid on the cutting tool 316, it can effectively reduce the temperature of the cutting tool and the workpiece, reduce thermal deformation, and improve machining accuracy. At the same time, the filter net 322 on the surface of the connection box 321 can prevent dust and other impurities from entering the interior, ensuring the normal operation of the cooling system.

[0026] Example 4, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 7 As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 7 , a combined machine tool for metal cutting, a third moving block 40 is threadedly connected to the outer surface of another second lead screw 26. The grinding component 4 includes a connecting plate 41 fixedly connected to one side of the third moving block 40. A fourth servo motor 42 is detachably connected to the upper end of the connecting plate 41. The output end of the fourth servo motor 42 penetrates through the connecting plate 41 and is fixedly connected with a second connecting shaft 43. A grinding disc 44 is detachably connected to the lower end of the second connecting shaft 43; The protection component 5 includes a plurality of rectangular through slots 51 symmetrically formed on the surfaces of two second fixing plates 28. A guide rod 52 is fixedly installed in each of the plurality of rectangular through slots 51. A first spring 53 is sleeved on the outer surface of the guide rod 52. A fourth moving block 54 is slidably connected to the outer surface of the guide rod 52. A protection frame 55 is fixedly connected between the plurality of fourth moving blocks 54; The thread directions of the two second lead screws 26 are opposite.

[0027] It should be noted that when grinding and machining are required, the second servo motor 22 is started again. By switching the reverse movement of the driving mechanism 2, the milling component 31 is lifted away from the workpiece. At the same time, the other second lead screw 26 drives the third moving block 40 to move downward, so that the grinding component 4 approaches the workpiece. The fourth servo motor 42 is started, and the fourth servo motor 42 drives the second connecting shaft 43 to rotate. The second connecting shaft 43 drives the grinding disc 44 to rotate at a high speed, and the surface of the workpiece after milling is ground to further improve the surface finish of the workpiece. During the downward movement of the grinding component 4, after the connecting plate 41 contacts the protection frame 55, it will press down the protection frame 55 to drive it to move synchronously. After pressing down until the grinding disc 44 contacts the surface of the workpiece, the grinding work can be carried out. During grinding, under the action of the protection frame 55, the chips generated by grinding can be prevented from splashing, protecting the safety of the operator and the cleanliness of the working environment. During the upward movement of the grinding component 4 after grinding, under the elastic force of the first spring 53, the fourth moving block 54 and the protection frame 55 will be pushed back to prepare for the next processing.

[0028] Embodiment 5, as Figure 2 、 Figure 3 、 Figure 4 、 Figure 7 and Figure 8 shown, a combined machine tool for metal cutting. The clamping component 6 includes a plurality of connecting blocks 61 fixedly connected to the front and rear ends of the milling component 31 and the grinding component 4. A second spring 62 is detachably connected to the inner cavity of the connecting block 61. A limiting plate 63 is movably connected to the inner cavity of the connecting block 61. One end of the limiting plate 63 is fixedly connected to a clamping block 64; Rectangular sliding grooves 29 are formed on one side surface of each of the two first fixing plates 27 and the two second fixing plates 28. Two clamping grooves 30 are symmetrically formed in each of the plurality of rectangular sliding grooves 29. The connecting block 61 is slidably connected to the rectangular sliding groove 29. The upper and lower ends of the clamping block 64 are both inclined surfaces, and the clamping block 64 is clamped with the clamping groove 30.

[0029] It should be noted that during the metal cutting process, if it is necessary to switch between the milling mechanism 3 and the grinding assembly 4, the quick replacement operation can be achieved by means of the switching drive mechanism 2 and the clamping assembly 6. The clamping block 64 of the clamping assembly 6 is tightly clamped into the clamping groove 30 in the rectangular sliding groove 29 under the elastic force of the second spring 62, so as to firmly fix the milling assembly 31 and the grinding assembly 4 in their respective corresponding positions. When replacement is needed, manually press the clamping block 64 to make it retract into the connecting block 61 against the elastic force of the second spring 62. Then start the switching drive mechanism 2 and use the two second lead screws 26 with opposite thread directions inside it to drive the milling mechanism 3 downward and the grinding assembly 4 upward to achieve the switching. After the two move to the appropriate positions, the second spring 62 resumes deformation and pushes the clamping block 64 to re-enter the corresponding clamping groove 30 to complete the replacement. The whole process is fast and convenient, greatly improving the efficiency of metal cutting processing.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A combined machine tool for metal cutting, a combined machine tool for metal cutting, comprising a machine tool body (1), a workbench (11) fixedly connected inside the machine tool body (1), a fixed support (12) fixedly connected to the surface of the workbench (11), a first servo motor (13) detachably connected to the top of the fixed support (12), a first lead screw (14) fixedly connected to the output end of the first servo motor (13), a first moving block (15) threadedly connected to the outer surface of the first lead screw (14), and a switching drive mechanism (2) fixedly connected to one end of the first moving block (15), characterized in that: On one side of the switching drive mechanism (2), two first fixing plates (27) are symmetrically arranged. On the other side of the switching drive mechanism (2), two second fixing plates (28) are symmetrically arranged. A milling mechanism (3) is arranged between the two first fixing plates (27), and a grinding assembly (4) and a protection assembly (5) are arranged between the two second fixing plates (28). The switching drive mechanism (2) includes a moving box (21) fixedly connected to the front end of the first moving block (15), a second servo motor (22) detachably connected to the top of the moving box (21), a first rotating rod (23) fixedly connected to the output end of the second servo motor (22), a first gear (24) welded to the outer surface of the first rotating rod (23), two second gears (25) symmetrically meshed on both sides of the first gear (24), and a second lead screw (26) welded inside the second gear (25). Bellows-type protective covers (19) are arranged on both sides of the moving box (21). The milling mechanism (3) includes a milling assembly (31) and a cooling assembly (32) fixedly connected to one side of the milling assembly (31). Clamping assemblies (6) are fixedly connected to the front and rear ends of the milling assembly (31) and the front and rear ends of the grinding assembly (4). A longitudinal feed mechanism (16) is fixedly installed on the surface of the workbench (11). A transverse feed mechanism (17) is installed at the upper end of the longitudinal feed mechanism (16). A vise (18) is installed at the upper end of the transverse feed mechanism (17).

2. The combined machine tool for metal cutting according to claim 1, wherein: The milling assembly (31) includes a second moving block (311) threadedly connected to the outer surface of one of the second lead screws (26). A fixed box (312) is welded to one side of the second moving block (311). A third servo motor (313) is detachably connected to the top of the fixed box (312). A first connecting shaft (314) is arranged at the output end of the third servo motor (313). The other end of the first connecting shaft (314) penetrates through the fixed box (312) and is provided with a tool holder (315). A tool (316) is detachably installed below the tool holder (315).

3. The combined machine tool for metal cutting according to claim 2, characterized in that: The cooling component (32) includes a connection box (321) fixedly connected to one side of the fixed box (312). A number of filter nets (322) are detachably embedded on the surface of the connection box (321). A third gear (323) is fixedly connected to the outer surface of the first connection shaft (314). A transmission toothed belt (324) is engaged with the outer surface of the third gear (323). A fourth gear (325) is engaged with the inner surface of the other end of the transmission toothed belt (324). A rotating shaft (326) is fixedly connected to the center position of the fourth gear (325). A second rotating rod (327) is fixedly connected to the lower end of the rotating shaft (326). A support plate (328) is fixedly connected inside the connection box (321). A bearing (329) is embedded in the center position of the support plate (328). Two groups of fan blades (330) are fixedly connected to the outer surface of the second rotating rod (327). A liquid storage box (33) is arranged inside the connection box (321). An oil nozzle (34) is fixedly communicated with one end of the liquid storage box (33). The other end of the oil nozzle (34) penetrates through the connection box (321). A liquid spraying head (35) is fixedly connected to the other end of the liquid storage box (33).

4. The combined machine tool for metal cutting according to claim 3, characterized in that: The interior of the connection box (321) communicates with the interior of the fixed box (312). The second rotating rod (327) is rotatably connected to the bearing (329).

5. The combined machine tool for metal cutting according to claim 1, characterized in that: A third moving block (40) is threadedly connected to the outer surface of the other second lead screw (26). The grinding component (4) includes a connecting plate (41) fixedly connected to one side of the third moving block (40). A fourth servo motor (42) is detachably connected to the upper end of the connecting plate (41). The output end of the fourth servo motor (42) penetrates through the connecting plate (41) and is fixedly connected to a second connection shaft (43). A grinding disc (44) is detachably connected to the lower end of the second connection shaft (43).

6. The combined machine tool for metal cutting according to claim 1, characterized in that: The protection component (5) includes a plurality of rectangular through grooves (51) symmetrically opened on the surfaces of the two second fixing plates (28). Guide rods (52) are fixedly installed in the plurality of rectangular through grooves (51). A first spring (53) is sleeved on the outer surface of the guide rod (52). A fourth moving block (54) is slidably connected to the outer surface of the guide rod (52). A protection frame (55) is fixedly connected between the plurality of fourth moving blocks (54).

7. A combined machine tool for metal cutting according to claim 1, characterized in that: The clamping component (6) includes a plurality of connection blocks (61) fixedly connected to the front and rear ends of the milling component (31) and the grinding component (4). A second spring (62) is detachably connected to the inner cavity of the connection block (61). A limiting plate (63) is movably connected to the inner cavity of the connection block (61). A clamping block (64) is fixedly connected to one end of the limiting plate (63).

8. The combined machine tool for metal cutting according to claim 7, characterized in that: Rectangular sliding grooves (29) are provided on one side surface of each of the two first fixing plates (27) and the two second fixing plates (28). Two clamping grooves (30) are symmetrically provided in each of the plurality of rectangular sliding grooves (29). The connecting block (61) is slidably connected in the rectangular sliding groove (29). Both the upper and lower ends of the clamping block (64) are inclined surfaces, and the clamping block (64) is clamped with the clamping groove (30).

9. The combined machine tool for metal cutting according to claim 1, characterized in that: The thread directions of the two second lead screws (26) are opposite.

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