Numerically controlled cutting machine with electric spindle

Abstract

The application relates to the technical field of cutting machining, and discloses a numerical control cutting machine tool with an electric spindle, which comprises a base, a guide rail plate arranged at the upper end of the base, a cutting plate arranged at the upper end of the guide rail plate, a cylinder arranged at the lower end of the cutting plate, a cutting tool arranged at the telescopic end of the cylinder, and a cooling unit arranged on the side wall of the cutting plate, wherein the cooling unit comprises an adjusting part arranged on the cutting plate and an oil outlet part; the adjusting part is arranged to enable the oil outlet nozzle to be adjusted along with the change of the cutting point at all times, so that the cutting oil sprayed by the oil outlet nozzle can directly act on the cutting point of the cutting tool, and the oil outlet amount of the oil outlet nozzle can change along with the change of the rotating speed of the workpiece; when the rotating speed of the workpiece is faster, the cutting oil sprayed by the oil outlet nozzle is more, and the cooling is better; when the rotating speed is slower, the oil outlet amount is less, thereby reducing the waste of the cutting oil and the machining cost.

Description

Technical Field

[0001] This invention relates to the technical field of cutting processes, and more particularly to a CNC cutting machine tool with an electric spindle. Background Technology

[0002] In the high-end manufacturing sector, the machining of precision parts and complex curved surfaces places higher demands on the accuracy, speed, and response speed of CNC machine tools. Traditional CNC machine tools use motors to drive the spindle through intermediate transmission mechanisms such as belts and gears, which suffers from defects such as transmission backlash, high vibration and noise, and limited speed, making it difficult to meet the precision and high-efficiency machining needs of aerospace, automotive molds, and 3C digital products. To solve these problems, CNC machine tools with electric spindles have emerged. Electric spindles integrate the motor and spindle into one unit, achieving zero-transmission direct drive. They achieve stepless speed regulation through high-frequency variable frequency control, and with the addition of precision ceramic bearings, liquid cooling temperature control, and oil-air lubrication systems, they possess advantages such as high precision, high speed, and low vibration, enabling them to complete micron-level precision machining and high-speed cutting operations.

[0003] Existing machine tools have the following problems when machining cylindrical workpieces and spraying cutting oil: During the cutting process, the tool and workpiece obstruct the cutting point, the nozzle position is fixed, and in multi-axis linkage machining, the radius of the cylindrical workpiece becomes smaller and smaller during machining, so the cutting point of the tool changes continuously in the horizontal direction. These factors make it difficult for the oil spraying point to always match the cutting point. In addition, the cutting splash generated during the cutting process will block the cutting oil spraying path and reduce the alignment accuracy. Therefore, it is necessary to design a machine tool that ensures that the cutting oil spraying point is always synchronized with the cutting point during the cutting process and is not obstructed by the cutting. Summary of the Invention

[0004] In view of the problems in the existing technology where the cutting fluid cannot be accurately sprayed at the cutting point due to changes in the cutting point or cutting obstruction, a CNC cutting machine tool with an electric spindle is proposed.

[0005] This application provides a CNC cutting machine tool with an electric spindle. The purpose is to: by setting an adjustment component, enable the oil nozzle to always adjust according to the change of the cutting point, ensuring that the cutting oil sprayed by the oil nozzle directly acts on the cutting point of the cutting tool, and the oil output of the oil nozzle changes with the rotation speed of the workpiece. The faster the rotation speed of the workpiece to be cut, the more cutting oil is sprayed by the oil nozzle, and the better the cooling. When the rotation speed is slower, the oil output is less, thereby reducing the waste of cutting oil and processing costs.

[0006] The technical solution of the present invention is as follows: a CNC cutting machine tool with an electric spindle, including a base, a guide plate disposed on the upper end of the base, a cutting plate disposed on the upper end of the guide plate, a cylinder disposed on the lower end of the cutting plate, a cutting tool disposed on the telescopic end of the cylinder, and a cooling unit disposed on the side wall of the cutting plate, wherein the cooling unit includes an adjustment component and an oil outlet component disposed on the cutting plate. The adjusting component includes a bending plate disposed on the side wall of the cutting plate, a mounting groove formed on the side wall of the bending plate, two mounting plates disposed inside the mounting groove, a drive shaft disposed on the mounting plates, a friction wheel disposed on the drive shaft, two support plates disposed on the upper end of the bending plate, an adjusting rod disposed on the upper end of the two support plates, an adjusting block disposed on the outer wall of the adjusting rod, and an oil nozzle disposed on the upper end of the adjusting block. A linkage assembly is installed between the adjusting block and the drive shaft, and tracking assemblies are installed on both sides of the drive shaft. The oil nozzle is located directly below the cutting tool. The guide plate is used to control the horizontal movement of the cutting plate. The oil nozzle is used to spray cutting oil onto the cutting point of the cutting tool and cool the cutting tool. The cylinder drives the cutting tool to move horizontally through its telescopic end.

[0007] Furthermore, the linkage assembly includes a connecting plate disposed on the outer wall of the drive shaft, a connecting block disposed on the upper end of the connecting plate, a central shaft disposed between the inner walls of the mounting groove, a central rod rotatably disposed on the outer wall of the central shaft, a hinge block disposed at the lower end of the adjusting block, a connecting rod one hinged between the connecting block and the central rod, and a connecting rod two hinged between the hinge block and the central rod.

[0008] Furthermore, the tracking component includes a reset plate disposed on the outer walls of both sides of the drive shaft, a fixing plate disposed on the side walls of the two mounting plates respectively, a reset rod disposed between the fixing plate and the corresponding reset plate, and sliding grooves formed on the two mounting plates, wherein the drive shaft is slidably mounted in the two sliding grooves.

[0009] Furthermore, the end of the bending plate away from the cutting plate is configured as an arc shape, which can completely fit the outer wall of the workpiece to be processed.

[0010] Furthermore, the oil outlet component includes a square groove formed on the bending plate, a pump housing disposed inside the square groove, a centrifugal shaft disposed inside the pump housing, a plurality of centrifugal blades installed on the outer wall of the centrifugal shaft, and one end of the centrifugal shaft being fixedly connected to the drive shaft.

[0011] Furthermore, an oil inlet and an oil outlet are provided on the outer wall of the pump housing, an oil tank is installed on the base, one end of the oil inlet is fixedly connected to the oil tank, and one end of the oil outlet is fixedly connected to the oil nozzle.

[0012] Furthermore, a clamping plate is fixedly installed on the upper end of the base, an electric spindle is rotatably installed on the clamping plate, and a clamping sleeve is fixedly installed on one end of the electric spindle. The clamping sleeve is used to clamp and fix the workpiece to be processed.

[0013] The beneficial effects of this invention are: By adjusting the components, the oil nozzle can adaptively adjust the spray angle as the radius of the cylindrical workpiece decreases, ensuring that the cutting oil is always precisely sprayed to the ever-changing cutting point. This guarantees that the cutting oil continuously, stably, and accurately acts on the cutting contact area between the tool and the workpiece, avoiding problems such as insufficient lubrication and untimely cooling caused by the cutting oil not effectively reaching the cutting point due to spray angle deviation. It significantly improves the lubrication effect and cooling efficiency during the cutting process, reduces friction and wear between the tool and the workpiece, lowers the temperature of the cutting area, effectively suppresses overheating, burning, and excessive wear of the tool, and extends the tool life. At the same time, it can avoid defects such as increased surface roughness, decreased dimensional accuracy, burrs, or burns caused by inadequate lubrication and cooling, ensuring the stability of workpiece machining quality and accuracy. It can also reduce cutting oil splashing and ineffective spraying, improve cutting oil utilization, improve the cutting environment, ensure continuous and stable operation of the entire cutting process, and improve cutting efficiency and reliability.

[0014] By placing the oil nozzle below the cutting tool and discharging chips above it, this structural layout effectively avoids chip accumulation and obstruction of the cutting oil spray path during the flow process. It ensures unobstructed and continuous delivery of cutting oil to the cutting point, guaranteeing stable application of lubrication and cooling media to the contact area between the tool and workpiece. This significantly improves the utilization rate and accuracy of the cutting oil, reduces insufficient lubrication and uneven cooling caused by obstruction, lowers frictional wear between the tool and workpiece, and suppresses excessively rapid temperature rise in the cutting area, tool burning, and accelerated wear, thus significantly extending tool life. Simultaneously, it ensures stable workpiece surface quality, reducing defects such as surface scratches, increased roughness, and dimensional accuracy deviations caused by poor lubrication. It also avoids spray deviation and cutting oil splashing waste caused by chip interference, optimizes the machining environment, reduces oil contamination and cleaning costs, ensures continuous and smooth cutting, and improves the stability, reliability, and efficiency of machining. This provides a reliable structural guarantee for automated and continuous machining.

[0015] By setting up an oil outlet component, the oil nozzle adaptively adjusts the oil output according to the workpiece rotation speed. The faster the workpiece rotates, the more oil is output, which can achieve real-time matching between cutting oil supply and cutting conditions. This avoids insufficient lubrication and cooling at high speeds, which can lead to increased tool wear and excessively high temperatures in the cutting area. At the same time, it prevents excessive oil output at low speeds, which can cause cutting oil waste and environmental pollution. It can accurately meet the lubrication, cooling, and chip removal needs at different speeds, improve cutting oil utilization, stabilize tool life and workpiece machining accuracy, reduce resource consumption, simplify manual adjustment operations, ensure continuous and stable cutting processes, and improve overall machining efficiency and quality. Attached Figure Description

[0016] Figure 1 This is a first-view three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the frontal planar structure of the present invention; Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This is a schematic diagram of the cutting tool mounting structure of the present invention; Figure 5 For the present invention Figure 4 Enlarged structural diagram at point B; Figure 6 This is a schematic diagram of the bending plate installation structure of the present invention; Figure 7 This is a schematic diagram of the internal structure of the bending plate of the present invention; Figure 8 This is a schematic diagram of the linkage component structure of the present invention; Figure 9 This is a schematic diagram of the oil outlet component of the present invention.

[0017] In the picture: 1. Base; 2. Guide rail plate; 3. Cutting plate; 4. Cylinder; 5. Cutting tool; 101. Bending plate; 102. Mounting plate; 103. Drive shaft; 104. Friction wheel; 105. Support plate; 106. Adjusting rod; 107. Adjusting block; 108. Oil nozzle; 201. Connecting plate; 202. Connecting block; 203. Central shaft; 204. Hinge block; 205. Connecting rod one; 206. Connecting rod two; 207. Central shaft; 301. Pump housing; 302. Centrifugal shaft; 303. Centrifugal blade; 304. Oil inlet; 305. Oil outlet; 401. Clamping plate; 402. Electric spindle body; 403. Clamping sleeve; 501. Reset plate; 502. Fixing plate; 503. Reset rod. Detailed Implementation

[0018] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0019] Example 1 Reference Figures 1-8 The first embodiment of the present invention provides a CNC cutting machine tool with an electric spindle, including a base 1, a guide plate 2 fixedly installed on the upper end of the base 1, a cutting plate 3 slidably installed on the upper end of the guide plate 2, a cylinder 4 fixedly installed on the lower end of the cutting plate 3, a cutting tool 5 fixedly installed on the telescopic end of the cylinder 4, and a cooling unit installed on the side wall of the cutting plate 3. The cooling unit includes an adjustment component and an oil outlet component installed on the cutting plate 3.

[0020] The adjusting components include a bending plate 101 fixedly mounted on the side wall of the cutting plate 3, a mounting groove formed on the side wall of the bending plate 101, two mounting plates 102 fixedly mounted inside the mounting groove, a drive shaft 103 slidably mounted on the mounting plate 102, a friction wheel 104 fixedly mounted on the drive shaft 103, two support plates 105 fixedly mounted on the upper end of the bending plate 101, an adjusting rod 106 rotatably mounted on the upper end of the two support plates 105, an adjusting block 107 fixedly mounted on the outer wall of the adjusting rod 106, an oil nozzle 108 fixedly mounted on the upper end of the adjusting block 107, a linkage assembly installed between the adjusting block 107 and the drive shaft 103, and tracking assemblies installed on both sides of the drive shaft 103.

[0021] The oil nozzle 108 is located directly below the cutting blade 5. The guide plate 2 is used to control the horizontal movement of the cutting plate 3. The oil nozzle 108 is used to spray cutting oil onto the cutting point of the cutting blade 5 and cool the cutting blade 5. The cylinder 4 drives the cutting blade 5 to move horizontally through its telescopic end. The linkage assembly includes a connecting plate 201 rotatably mounted on the outer wall of the drive shaft 103, a connecting block 202 fixedly mounted on the upper end of the connecting plate 201, a central shaft 203 fixedly mounted between the inner walls of the mounting groove, a central rod 207 rotatably mounted on the outer wall of the central shaft 203, a hinge block 204 fixedly mounted on the lower end of the adjusting block 107, a connecting rod 205 hinged between the connecting block 202 and the central rod 207, and a connecting rod 206 hinged between the hinge block 204 and the central rod 207.

[0022] The tracking assembly includes a reset plate 501 fixedly mounted on the outer walls of both sides of the drive shaft 103, a fixing plate 502 fixedly mounted on the side walls of two mounting plates 102 respectively, a reset rod 503 fixedly mounted between the fixing plate 502 and the corresponding reset plate 501, and sliding grooves formed on the two mounting plates 102, with the drive shaft 103 slidably mounted in the two sliding grooves.

[0023] Specifically, the function of the adjusting component is as follows: When the cutting tool 5 is machining the cylindrical workpiece, it cuts its outer wall. As the workpiece is cut, its radius decreases. If the cutting tool 5 needs to continue cutting the outer wall of the workpiece, it needs to be adjusted horizontally (the cylinder 4 is used to adjust the cutting tool 5 horizontally). After the adjustment, the cutting point between the cutting tool 5 and the workpiece changes. At this time, the adjusting component can adjust the angle of the oil nozzle 108, so that the oil nozzle 108 can always spray cutting oil directly onto the cutting point, thereby improving the maximum cooling effect during the cutting process. The end of the bending plate 101 away from the cutting plate 3 is set as an arc shape, which can completely fit the outer wall of the workpiece to be processed.

[0024] The working principle of the adjusting component is as follows: When the workpiece needs to be cut, the cutting tool 5 is moved to contact the outer wall of the workpiece, and at the same time, the arc side wall of the bending plate 101 is completely pressed against the outer wall of the workpiece. During the process of the two being pressed against each other, the friction wheel 104 is squeezed and slides into the mounting groove. When the outer wall of the bending plate 101 is just pressed against the outer wall of the workpiece, the nozzle of the oil nozzle 108 is just facing the cutting head of the cutting tool 5. Since the bending plate 101 is fixed, when the outer wall of the workpiece is cut and its radius becomes smaller, the bending plate 101 is no longer pressed against the outer wall of the workpiece. At the same time, the friction wheel 104 is reset a certain distance under the action of the tracking component. During the reset process, the angle of the oil nozzle 108 is adjusted by the linkage component, thereby ensuring that the cutting oil sprayed by the oil nozzle 108 can always act on the cutting point.

[0025] This adjustment component allows the oil nozzle 108 to adaptively adjust its spray angle as the radius of the cylindrical workpiece decreases, ensuring that the cutting oil is always precisely sprayed to the ever-changing cutting point. This guarantees that the cutting oil continuously, stably, and accurately acts on the cutting contact area between the tool and the workpiece, avoiding problems such as insufficient lubrication and untimely cooling caused by the cutting oil failing to reach the cutting point due to spray angle deviation. It significantly improves the lubrication effect and cooling efficiency during the cutting process, reduces friction and wear between the tool and the workpiece, lowers the temperature of the cutting area, effectively suppresses overheating, burning, and excessive wear of the tool, and extends the tool's service life. At the same time, it can avoid defects such as increased surface roughness, decreased dimensional accuracy, burrs, or burns caused by inadequate lubrication and cooling, ensuring the stability of workpiece machining quality and accuracy. It can also reduce cutting oil splashing and ineffective spraying, improve cutting oil utilization, improve the cutting environment, ensure continuous and stable operation of the entire cutting process, and improve cutting efficiency and reliability.

[0026] By positioning the oil nozzle 108 directly below the cutting tool 5 and controlling the workpiece rotation direction, the workpiece rotates clockwise (see reference). Figure 2The cuttings generated during the clockwise rotation are discharged from the upper end of the cutting tool 5, thus not affecting the angle at which the oil nozzle 108 sprays cutting oil, thereby ensuring that the cutting oil can always act on the cutting point during the cutting process.

[0027] During use, when machining a cylindrical workpiece, the cutting edge of the cutting tool 5 and the curved end of the bending plate 101 are pressed tightly against the outer wall of the workpiece. During the pressing process, the friction wheel 104 slides along the sliding groove into the mounting groove under the pressure, so that the friction wheel 104 is completely inside the mounting groove, and the reset rod 503 is in a compressed state. When the friction wheel 104 is moving, the connecting block 202 moves synchronously, and the connecting rod 205 and the intermediate rod 207 generate a pulling force on the connecting rod 206. The connecting rod 206 is pulled at the same time and generates a pulling force in the same direction on the adjusting block 107, so that the adjusting rod 106 deflects under the action of the pulling force. During the deflection process, the oil nozzle 108 deflects at the same angle. When the friction wheel 104 is completely inside the mounting groove (after one end of the bending plate 101 is completely pressed against the outer wall of the workpiece), the oil nozzle of the oil nozzle 108 is directly facing the cutting point of the cutting tool 5.

[0028] As the cutting tool 5 cuts the workpiece, the outer radius of the workpiece gradually decreases. Since the bending plate 101 is fixedly installed on the cutting plate 3, the cutting point changes when the cutting tool 5 moves horizontally. The distance the cutting tool 5 moves horizontally is related to the radius of the workpiece. Therefore, when the radius of the workpiece decreases, the friction wheel 104 quickly resets under the elastic force of the reset rod 503. During the reset process, the friction wheel 104 moves horizontally. During the movement, the connecting rod 1 205 generates a pulling force on the lower end of the central rotating rod 207, causing the upper end of the central rotating rod 207 to deflect. During the deflection process, the connecting rod 2 206 generates a pulling force on the hinge block 204, causing the hinge block 204 to drive the oil nozzle 108 to deflect under the action of the pulling force. After the oil nozzle 108 deflects, its nozzle is facing the cutting point of the cutting tool 5, ensuring that the nozzle of the oil nozzle 108 is always facing the cutting point.

[0029] Example 2 Reference Figures 8-9 This is the second embodiment of the present invention, which differs from the first embodiment in that: the oil outlet component includes a square groove formed on the bending plate 101, a pump housing 301 fixedly installed inside the square groove, a centrifugal shaft 302 rotatably installed inside the pump housing 301, and a plurality of centrifugal blades 303 fixedly installed on the outer wall of the centrifugal shaft 302. One end of the centrifugal shaft 302 is fixedly connected to the drive shaft 103. An oil inlet 304 and an oil outlet 305 are formed on the outer wall of the pump housing 301. An oil tank is installed on the base 1. One end of the oil inlet 304 is fixedly connected to the oil tank, and one end of the oil outlet 305 is fixedly connected to the oil nozzle 108.

[0030] Specifically, the oil outlet component is used to control the amount of cutting oil sprayed by the oil nozzle 108 per unit time. As the workpiece rotates faster, the heat generated by friction on the cutting tool 5 is greater. At this time, a sufficient amount of cutting oil is needed to better dissipate heat from the cutting tool 5. When the workpiece rotates slower, the amount of cutting oil is controlled to be less, which can effectively reduce the waste of cutting oil and processing costs.

[0031] The oil outlet component controls the amount of cutting oil by rotating the friction wheel 104. Since the friction wheel 104 is always in close contact with the outer wall of the workpiece, the workpiece will drive the friction wheel 104 to rotate synchronously during rotation. The rotation speed of the friction wheel 104 is proportional to the rotation speed of the workpiece. At the same time, the centrifugal vane 303 can change the pressure inside the pump housing 301 by rotating, thereby realizing the ability to control the movement of cutting oil (this is the prior art and will not be elaborated on here), thus realizing the function of controlling the amount of cutting oil.

[0032] During use, when the workpiece is being cut, its continuous rotation drives the friction wheel 104 to rotate synchronously. The rotation of the friction wheel 104 drives the centrifugal shaft 302 inside the pump housing 301 to rotate synchronously via the drive shaft 103. The rotation of the centrifugal shaft 302 drives the centrifugal blades 303 on the outer wall to rotate. The rotation of the centrifugal blades 303 changes the pressure inside the pump housing 301, causing the cutting oil to enter the pump housing 301 through the oil inlet 304 and enter the oil nozzle 108 through the oil outlet 305, directly applying the cutting oil to the cutting point. Since the amount of cutting oil sprayed per unit time is proportional to the rotation speed of the centrifugal shaft 302, the faster the workpiece rotates, the more cutting oil is sprayed per unit time, and the slower the workpiece rotates, the less cutting oil is sprayed per unit time.

[0033] The remaining structure is the same as that in Example 1.

[0034] Example 3 Reference Figures 1-2 This is the third embodiment of the present invention. The difference between this embodiment and the second embodiment is that: a clamping plate 401 is fixedly installed on the upper end of the base 1, an electric spindle body 402 is rotatably installed on the clamping plate 401, and a clamping sleeve 403 is fixedly installed on one end of the electric spindle body 402. The clamping sleeve 403 is used to clamp and fix the workpiece to be processed.

[0035] Specifically, the clamping sleeve 403 is used to clamp the workpiece, and the electric spindle 402 is directly connected to the motor drive end to improve the efficiency of energy transmission. Compared with the traditional transmission structure, the electric spindle 402 has the advantage of high energy efficiency.

[0036] The remaining structure is the same as that in Example 2.

[0037] Based on embodiments 1-3, the working principle of the present invention is as follows: When a cylindrical workpiece needs to be processed, the workpiece is clamped inside the clamping sleeve 403. Then, the cutting head of the cutting tool 5 and the curved end of the bending plate 101 are pressed tightly against the outer wall of the workpiece. During the pressing process of the bending plate 101, the friction wheel 104 slides along the sliding groove into the mounting groove under the pressure, so that the friction wheel 104 is completely inserted into the mounting groove, and the reset rod 503 is in a compressed state. When the friction wheel 104 moves, the connecting... Block 202 moves synchronously and generates a pulling force on connecting rod 206 through connecting rod 1 205 and central rod 207. While the connecting rod 206 is under tension, it generates a pulling force in the same direction on adjusting block 107, causing adjusting rod 106 to deflect under the action of tension. During the deflection process, oil nozzle 108 deflects at the same angle. When friction wheel 104 is fully inserted into the mounting groove (after one end of bending plate 101 is completely pressed against the outer wall of the workpiece), the oil nozzle of oil nozzle 108 is directly facing the cutting point of cutting tool 5.

[0038] As the cutting tool 5 cuts the workpiece, the outer radius of the workpiece gradually decreases. Since the bending plate 101 is fixedly installed on the cutting plate 3, the cutting point changes when the cutting tool 5 moves horizontally. The distance the cutting tool 5 moves horizontally is related to the radius of the workpiece. Therefore, when the radius of the workpiece decreases, the friction wheel 104 quickly resets under the elastic force of the reset rod 503. During the reset process, the friction wheel 104 moves horizontally. During the movement, the connecting rod 1 205 generates a pulling force on the lower end of the central rotating rod 207, causing the upper end of the central rotating rod 207 to deflect. During the deflection process, the connecting rod 2 206 generates a pulling force on the hinge block 204, causing the hinge block 204 to drive the oil nozzle 108 to deflect under the action of the pulling force. After the oil nozzle 108 deflects, its nozzle is facing the cutting point of the cutting tool 5, ensuring that the nozzle of the oil nozzle 108 is always facing the cutting point.

[0039] During the cutting process, the workpiece rotates continuously, driving the friction wheel 104 to rotate synchronously. The rotation of the friction wheel 104 drives the centrifugal shaft 302 inside the pump housing 301 to rotate synchronously via the drive shaft 103. The rotation of the centrifugal shaft 302 drives the centrifugal blades 303 on the outer wall to rotate. The rotation of the centrifugal blades 303 changes the pressure inside the pump housing 301, causing the cutting oil to enter the pump housing 301 through the oil inlet 304 and enter the oil nozzle 108 through the oil outlet 305, directly applying the cutting oil to the cutting point. Since the amount of cutting oil sprayed per unit time is proportional to the rotation speed of the centrifugal shaft 302, the faster the workpiece rotates, the more cutting oil is sprayed per unit time, and the slower the workpiece rotates, the less cutting oil is sprayed per unit time.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A CNC cutting machine tool with an electric spindle, comprising a base (1), a guide plate (2) disposed on the upper end of the base (1), a cutting plate (3) disposed on the upper end of the guide plate (2), a cylinder (4) disposed on the lower end of the cutting plate (3), and a cutting tool (5) disposed on the extension end of the cylinder (4), characterized in that, It also includes a cooling unit disposed on the side wall of the cutting plate (3), the cooling unit including an adjustment component and an oil outlet component disposed on the cutting plate (3); The adjustment component includes a bending plate (101) disposed on the side wall of the cutting plate (3), an installation groove opened on the side wall of the bending plate (101), two installation plates (102) disposed inside the installation groove, a drive shaft (103) disposed on the installation plate (102), a friction wheel (104) disposed on the drive shaft (103), two support plates (105) disposed on the upper end of the bending plate (101), an adjustment rod (106) disposed on the upper end of the two support plates (105), an adjustment block (107) disposed on the outer wall of the adjustment rod (106), and an oil nozzle (108) disposed on the upper end of the adjustment block (107). A linkage component is installed between the adjustment block (107) and the drive shaft (103), and tracking components are installed on both sides of the drive shaft (103). The oil nozzle (108) is located directly below the cutting tool (5). The guide plate (2) is used to control the movement of the cutting plate (3) in the horizontal direction. The oil nozzle (108) is used to spray cutting oil onto the cutting point of the cutting tool (5) and cool the cutting tool (5). The cylinder (4) drives the cutting tool (5) to move in the horizontal direction through the telescopic end.

2. A CNC cutting machine tool with an electric spindle according to claim 1, characterized in that, The linkage assembly includes a connecting plate (201) disposed on the outer wall of the drive shaft (103), a connecting block (202) disposed on the upper end of the connecting plate (201), a central shaft (203) disposed between the inner walls of the mounting groove, a central rod (207) rotatably disposed on the outer wall of the central shaft (203), a hinge block (204) disposed on the lower end of the adjusting block (107), a connecting rod one (205) hinged between the connecting block (202) and the central rod (207), and a connecting rod two (206) hinged between the hinge block (204) and the central rod (207).

3. A CNC cutting machine tool with an electric spindle according to claim 2, characterized in that, The tracking component includes a reset plate (501) disposed on the outer walls of both sides of the drive shaft (103), a fixing plate (502) disposed on the side walls of the two mounting plates (102), a reset rod (503) disposed between the fixing plate (502) and the corresponding reset plate (501), and sliding grooves opened on the two mounting plates (102). The drive shaft (103) is slidably mounted in the two sliding grooves.

4. A CNC cutting machine tool with an electric spindle according to claim 3, characterized in that, The end of the bending plate (101) away from the cutting plate (3) is set as an arc shape, which can completely fit the outer wall of the workpiece to be processed.

5. A CNC cutting machine tool with an electric spindle according to claim 4, characterized in that, The oil outlet component includes a square groove opened on the bending plate (101), a pump housing (301) set inside the square groove, a centrifugal shaft (302) set inside the pump housing (301), a plurality of centrifugal blades (303) installed on the outer wall of the centrifugal shaft (302), and one end of the centrifugal shaft (302) is fixedly connected to the drive shaft (103).

6. A CNC cutting machine tool with an electric spindle according to claim 5, characterized in that, The pump housing (301) has an oil inlet (304) and an oil outlet (305) on its outer wall. An oil tank is installed on the base (1). One end of the oil inlet (304) is fixedly connected to the oil tank, and one end of the oil outlet (305) is fixedly connected to the oil nozzle (108).

7. A CNC cutting machine tool with an electric spindle according to claim 6, characterized in that, A clamping plate (401) is fixedly installed on the upper end of the base (1). An electric spindle body (402) is rotatably installed on the clamping plate (401). A clamping sleeve (403) is fixedly installed on one end of the electric spindle body (402). The clamping sleeve (403) is used to clamp and fix the workpiece to be processed.

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