Numerical control milling machine for manufacturing mechanical parts

Abstract

The invention relates to the technical field related to intelligent manufacturing, discloses a numerical control milling machine for manufacturing mechanical parts, and aims to solve the problem that the position of a pressing plate is not easy to adjust due to the fact that cut metal chippings are left in a groove in the surface of a clamping table. The top of the space communicates with the groove in the clamping table, and in the process that the pressing plate clamps the part, the pressing plate can directly move along the groove reserved in the surface of the clamping table. When a part is cut, cut metal scraps can directly flow into the clamping box from a groove in the clamping table along with cooling liquid to be collected, the cooling liquid in the clamping box is filtered, finally, the metal scraps are left in the clamping box, the filtered cooling liquid can circularly flow, and therefore the metal scraps can be effectively removed. In this way, the effect of directly collecting and filtering the metal chippings below the clamping table is achieved.

Description

Technical Field

[0001] This invention relates to the field of intelligent manufacturing technology, and in particular to a CNC milling machine for manufacturing mechanical parts. Background Technology

[0002] In the field of modern mechanical parts manufacturing, CNC milling machines, as high-precision and intelligent core processing equipment, achieve multi-axis linkage and automated operation through CNC digital control systems, enabling precise machining of complex curved surfaces, irregularly shaped holes and grooves, and high-precision mating surfaces. With its advantages of high precision, high efficiency, and high flexibility, CNC milling machines have become a key technological carrier driving industrial upgrading.

[0003] Currently, mechanical parts are primarily secured using clamping plates mounted on a clamping table. Typically, grooves are formed on the surface of the clamping table to facilitate flexible adjustment of the clamping plate position, meeting the clamping requirements of different parts. However, in long-term practical application, metal shavings generated during milling operations flow into these grooves along with the coolant. Over time, a large amount of shavings accumulate in these grooves. These shavings not only severely affect the cleanliness and aesthetics of the worktable, but more importantly, the presence of metal shavings makes subsequent adjustments to the clamping plate assembly and removal extremely difficult, significantly reducing production efficiency and operational convenience.

[0004] A search revealed that CN218799375U discloses a CNC milling machine that facilitates waste cleaning. The machine includes a brush that sweeps debris from the surface of the bearing table into a collection box for recycling. When the debris in the collection box accumulates to a certain level, the collection box can be disassembled for unified processing. Therefore, the CNC milling machine in this application facilitates the cleaning of debris produced by the CNC milling machine.

[0005] However, in practical applications, the need to fix the parts to be processed on the clamping table inevitably leads to these parts and clamping components hindering the brush's cleaning work. Specifically, when cleaning debris inside the grooves, the brush cannot function effectively due to the obstruction of parts and clamping components, making it difficult to thoroughly clean the debris. Even if the operator removes the parts, the pressure plate assembly needs to slide out along the groove during disassembly. At this time, the residual metal debris inside the groove still makes the pressure plate difficult to remove, increasing the difficulty and time cost of disassembly. Ultimately, this also prevents the brush from effectively cleaning the inside of the grooves, thus failing to fundamentally solve the debris cleaning problem. Summary of the Invention

[0006] This invention proposes a CNC milling machine for manufacturing mechanical parts, which has the advantage of directly collecting and filtering metal chips below the clamping table, thereby solving the problem mentioned in the background art that the cut metal chips remain in the grooves on the surface of the clamping table, making it difficult to adjust the position of the pressure plate.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a CNC milling machine for manufacturing mechanical parts, comprising: a frame, a spindle assembly for driving cutting tools is mounted on the top, and a feed assembly for adjusting the horizontal movement of the support table is mounted on the surface; a clamping box, fixed to the surface of the support table, with a clamping table mounted on the top, and a groove for guiding and limiting the pressure plate assembly is formed on the surface of the clamping table, and the groove communicates with the interior of the clamping box; a coolant tank, installed on one side of the bottom of the support table, containing coolant, and a coolant pump installed on the side for supplying coolant to a cooling pipe fixed to one side of the spindle assembly; the coolant output from the cooling pipe can carry the cut metal chips into the inner cavity of the clamping box for storage.

[0008] Furthermore, a liquid septum is movably installed on one side of the clamping box, and a filter cartridge is installed on the side of the liquid septum. The filter cartridge is connected to the top of the coolant tank via a liquid delivery pipe. The filter cartridge is located in the middle of the inner cavity of the clamping box. After the coolant carries the cutting chips into the inner cavity of the clamping box, the metal chips will settle below the coolant under the action of gravity, so that the filter cartridge can draw the upper layer of coolant.

[0009] Furthermore, a small ventilation hole is provided on the top of the coolant tank, located on one side of the infusion pipe, and the top of the coolant tank is lower than the bottom of the clamping box.

[0010] Furthermore, a magnet assembly located below the filter cartridge is fixedly installed on the inner side of the liquid separator. After the magnet assembly generates magnetism, it can prevent debris from moving towards the filter cartridge. The metal debris in the clamping box is blocked by the magnet assembly and accumulates. When the coolant in the clamping box flows towards the filter cartridge, it passes through the accumulated debris layer for coarse filtration, the magnet assembly for magnetic filtration, and the filter cartridge for screen filtration in sequence.

[0011] Furthermore, a one-way limiting toothed rack is provided on the side of the liquid separator, and a float that is limited by an elliptical rod is located on the top of the inner side of the clamping box. A push rod that is pressed against the one-way limiting toothed rack by a spring is movably installed on the side of the float.

[0012] Furthermore, the tooth profile of the unidirectional limiting tooth row is a right-angled triangle.

[0013] Furthermore, a shifting slider is movably installed on the side of the liquid separator, and the filter cartridge is fixedly installed on the shifting slider. A fixed cylinder frame that is sealed to the filter cartridge is fixedly installed on the side of the liquid separator, and the fixed cylinder frame is connected to the infusion tube. A detection arm that is pushed by a spring is movably installed inside the clamping box and above the filter cartridge, and the detection arm and the shifting slider are connected by a telescopic tube. An alarm slider located on one side of the ventilation hole is movably installed on the surface of the coolant tank, and the alarm slider and the detection arm are fixedly connected by a round rod. An alarm whistle is fixedly installed on one side of the surface of the alarm slider.

[0014] Furthermore, a locking wedge block is securely installed on the top of the shifting slider, and a locking hook located above the locking wedge block is fixedly installed on the top of the inner side of the clamping box.

[0015] Furthermore, the locking hook is L-shaped.

[0016] The present invention has the following beneficial effects:

[0017] This invention provides a CNC milling machine for manufacturing mechanical parts. The clamping box has a dedicated space for accommodating metal cutting chips, the top of which communicates with a groove on the clamping table. During the clamping operation, the pressure plate can move along the groove to clamp the part, ensuring it remains in a stable position during subsequent processing.

[0018] When a CNC milling machine performs cutting operations on a part, the metal chips generated during the cutting process flow along with the coolant. At this time, due to the connection design between the top of the clamping box and the groove of the clamping table, this mixture of metal chips and coolant can flow directly into the interior of the clamping box along the groove, realizing the collection of metal chips and preventing chips from scattering around the machining area, effectively maintaining the cleanliness of the machining environment.

[0019] Furthermore, the coolant flowing into the clamping box, carrying metal debris, is filtered through this filtration system. During the filtration process, the metal debris is successfully intercepted and remains inside the clamping box, while the filtered coolant can then rejoin the cooling cycle for cutting, achieving a circulating flow of coolant. Attached Figure Description

[0020] The accompanying drawings, which form part of this specification, illustrate embodiments of the invention and, together with the specification, serve to explain the principles of the invention.

[0021] The invention will be more clearly understood with reference to the accompanying drawings and the following detailed description, wherein:

[0022] Figure 1 This is a schematic diagram of the overall external three-dimensional structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the overall internal three-dimensional structure of the present invention and its enlarged partial structure;

[0024] Figure 3 This is a cross-sectional view of the interior of the clamping box of the present invention and a partially enlarged structural schematic diagram;

[0025] Figure 4 For the present invention Figure 3 Enlarged structural diagram of section E in the middle;

[0026] Figure 5 For the present invention Figure 3 Enlarged structural diagram of the area at point F in the middle;

[0027] Figure 6 This is a schematic diagram of the internal three-dimensional structure of the coolant tank of the present invention;

[0028] Figure 7 This is a schematic diagram of the three-dimensional cross-sectional structure of the float of the present invention;

[0029] Figure 8 This is a schematic diagram of the three-dimensional structure of the liquid separator of the present invention;

[0030] Figure 9 This is a schematic diagram of the normal filtration state of the coolant in this invention;

[0031] Figure 10 This is a schematic diagram of the coolant filter blockage state in this invention.

[0032] In the diagram: 1. Frame; 2. Feed assembly; 201. Support platform; 3. Spindle assembly; 301. Cooling pipe; 4. Clamping box; 401. Clamping platform; 5. Coolant tank; 501. Ventilation hole; 6. Coolant pump; 7. Infusion pipe; 8. Detection arm; 9. Alarm slider; 10. Float; 11. Push rod; 12. Liquid separator; 120. One-way limit gear; 13. Magnet assembly; 14. Repositioning slider; 15. Filter cartridge; 16. Fixed cylinder frame; 17. Locking wedge block; 18. Locking hook; 19. Alarm whistle. Detailed Implementation

[0033] 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.

[0034] Example 1, please refer to Figure 1 and Figure 2It can be seen that a spindle assembly 3 is movably mounted on the top of the frame 1. The spindle assembly 3 can drive the clamped tool to rotate, thereby providing power for cutting. Furthermore, the spindle assembly 3 can move vertically up and down along the frame 1, i.e., in the Z-axis direction during machining of mechanical parts. A feed assembly 2 is mounted on the surface of the frame 1, located below the spindle assembly 3. A support platform 201 is mounted on the surface of the feed assembly 2. According to the adjustment of the feed assembly 2, the support platform 201 can move directionally along the X and Y axes. In this first embodiment, when it is necessary to tighten and limit the mechanical parts, the clamping box 4 is first fixedly mounted on the support platform 201 using bolts, so that the support platform 201 can drive the clamping box 4 to move synchronously. Figure 2 As shown, a clamping platform 401 is fixedly installed on the top of the clamping box 4. The surface of the clamping platform 401 has a dovetail-shaped groove, which allows the interior of the clamping box 4 to communicate with the outside. After the pressure plate assembly moves along the groove in the clamping platform 401, the mechanical parts to be processed can be fixed on the clamping platform 401 by the bolts on the pressure plate. Thus, the fixing of the mechanical parts is completed.

[0035] When the spindle assembly 3 performs cutting machining on the fixed parts, combined with Figures 1-3 It can be seen that a coolant tank 5 for storing coolant is fixedly installed on one side of the bottom of the support platform 201, and a coolant pump 6 is fixedly installed on the bottom outer side of the coolant tank 5. The coolant pump 6 can deliver coolant to the cooling pipe 301 fixed on one side of the spindle assembly 3. In this way, when the tool clamped on the spindle assembly 3 cuts the parts, the cooling pipe 301 can flush away the metal chips after cutting. Afterwards, the cut metal chips pass through the groove on the clamping table 401 along with the coolant and are stored in the inner cavity of the clamping box 4.

[0036] The bottom of the clamping box 4 is equipped with a chip discharge port, which is normally blocked. When it is necessary to discharge the metal chips collected in the clamping box 4, simply open it.

[0037] Example 2 is a further improvement on Example 1. Please refer to Example 1. Figures 2-6 It can be seen that a liquid slugging plate 12 is movably installed on one side of the clamping box 4, and a filter cartridge 15 is installed on the side of the liquid slugging plate 12. The filter cartridge 15 can be used to filter the coolant inside the clamping box 4. The filter cartridge 15 is connected to the top of the coolant tank 5 via a liquid delivery pipe 7. More details can be found from... Figure 3 and Figure 5It can be seen that the top of the coolant tank 5 has a small vent 501 located on one side of the delivery pipe 7, and the top of the coolant tank 5 is lower than the bottom of the clamping box 4. In actual application, the coolant pump 6 draws coolant from the coolant tank 5. As the amount of coolant in the coolant tank 5 gradually decreases, its internal pressure relatively drops. On the one hand, air is introduced through the vent 501, and on the other hand, the filter cartridge 15 is drawn through the delivery pipe 7. The filter cartridge 15 draws coolant from the clamping box 4, separating the coolant remaining in the clamping box 4 from metal impurities. The filtered coolant enters the coolant tank 5 and is then pumped back to the cooling pipe 301 by the coolant pump 6, realizing the recycling of coolant.

[0038] Moreover, from Figure 2 , Figure 3 and Figure 9 As can be seen, the baffle plate 12 divides the internal space of the clamping box 4, and the filter cartridge 15 is located in the middle of the inner cavity of the clamping box 4. When the coolant sprayed from the cooling pipe 301 carries the cutting chips into the inner cavity of the clamping box 4, the metal chips will settle at the bottom of the clamping box 4 under the action of gravity, and the coolant will be relatively above the cutting chips. Therefore, by drawing the upper layer of coolant through the filter cartridge 15, the filtration pressure of the filter cartridge 15 can be reduced, and the probability of clogging can be reduced.

[0039] Example 3 is a further improvement on Example 2. Please refer to Example 2. Figures 2-4 As can be seen, a magnet assembly 13 is fixedly installed on the inner side of the liquid separator 12, located below the filter cartridge 15. The magnet assembly 13 can be a permanent magnet or an electromagnet, preferably an electromagnet. When the magnet assembly 13 generates magnetism, the coolant passing through the surface of the magnet assembly 13 is magnetically filtered by the magnet assembly 13, which can filter out metal debris suspended in the coolant, thereby further reducing the filtration intensity of the filter cartridge 15 for cooling.

[0040] Furthermore, in this third embodiment, the liquid separator 12 can move vertically up and down along the clamping box 4, from... Figure 2 , Figure 3 , Figure 7 and Figure 8 It can be seen that the side of the liquid separator 12 is provided with a one-way limiting tooth row 120, and the tooth shape of the one-way limiting tooth row 120 is a right-angled triangle. The top of the inner side of the clamping box 4 has a float 10 that is movable and limited by an elliptical rod. The side of the float 10 is movably installed with a push rod 11 that is pressed against the one-way limiting tooth row 120 by a spring. The push rod 11 can be used to limit the downward movement of the liquid separator 12.

[0041] In practical applications, cooling pipe 301 carries cutting debris into the clamping box 4. The coolant and debris in the clamping box 4 separate into layers under gravity, with the debris at the bottom and the coolant at the top. As the amount of coolant inside the clamping box 4 increases, its level rises. The coolant, after passing through the magnet assembly 13, is magnetically adsorbed and filtered. Subsequently, the coolant is filtered through the filter cartridge 15 and then transported from the delivery pipe 7 to the coolant tank 5. As filtration continues inside the clamping box 4, the debris layer inside the clamping box 4 continuously increases. Because the magnet assembly 13 prevents debris from moving towards the filter cartridge 15, the debris layer in the chambers of the clamping box 4 furthest from the magnet assembly 13 eventually rises. During this process, as the coolant in the clamping box 4 flows towards the filter cartridge 15, it undergoes coarse filtration through the accumulated debris layer, then magnetic filtration using the magnet assembly 13, and finally filtration through the filter screen of the filter cartridge 15, ensuring that the coolant output to the delivery pipe 7 is relatively pure.

[0042] However, as the debris layer in the clamping box 4 increases, the amount of coolant filtration layer flowing into the filter cartridge 15 inside the clamping box 4 also increases, causing the coolant to flow poorly in the direction of the filter cartridge 15. Figure 10 As shown in the diagram, the coolant level inside the clamping box 4 increases continuously. When the coolant level reaches the position of the float 10, the float 10 floats above the coolant. The increase in coolant level inside the clamping box 4 causes the float 10 to tend to move upward. Subsequently, the float 10 drives the push rod 11 to tend to pull the baffle plate 12 upward. When the baffle plate 12 drives the magnet assembly 13 and the filter cartridge 15 upward, it reduces the height of the filter layer of debris in the coolant within the filter cartridge 15 and the clamping box 4, thereby mitigating the problem of poor coolant flow caused by the increased height of the debris layer.

[0043] Finally, as the actual filtration layer of debris decreases, the coolant inside the clamping box 4 is once again smoothly delivered to the filter cartridge 15. When the liquid level inside the clamping box 4 drops, the float 10 moves downward. Since there is a layer of metal debris at the bottom of the diaphragm 12 at this time, it will prevent the diaphragm 12 from moving downward. Therefore, when the float 10 drives the push rod 11 downward, the push rod 11 will move downward along the one-way limiting tooth row 120 until the float 10 returns to its initial position.

[0044] It should be noted that when the coolant pump 6 stops working, if the coolant level in the clamping tank 4 is too high, and considering that the top of the coolant tank 5 is connected to the outside via a small ventilation hole 501, and the top of the coolant tank 5 is lower than the clamping tank 4, the coolant above the filter cartridge 15 can be automatically drawn back into the coolant tank 5 under siphon action. This ensures that the coolant in the clamping tank 4 is ultimately buffered inside the coolant tank 5, facilitating the subsequent direct siphoning and use of the coolant from inside the coolant tank 5 by the coolant pump 6.

[0045] Example 4 is a further improvement on Example 3. Please refer to Example 3. Figures 3-6 It can be seen that a shifting slider 14 is movably installed on the side of the diaphragm 12, and the filter cartridge 15 is fixedly installed on the shifting slider 14. The shifting slider 14 allows the filter cartridge 15 to move left and right within a certain range in the horizontal direction. A fixed cylinder frame 16, which is sealed to the filter cartridge 15, is fixedly installed on the side of the diaphragm 12, and the fixed cylinder frame 16 is connected to the infusion tube 7. Furthermore, combined with… Figure 2 , Figure 3 and Figure 5 It can be seen that a detection arm 8, driven by a spring, is movably mounted inside the clamping box 4 and above the filter cartridge 15, and the detection arm 8 and the shifting slider 14 are connected by a telescopic tube. Under normal conditions, driven by the spring, the detection arm 8 moves the filter cartridge 15 on the shifting slider 14 away from the fixed frame 16 via the telescopic tube. Figure 5 and Figure 6 As shown, an alarm slider 9 is movably mounted on the surface of the coolant tank 5, located on one side of the ventilation hole 501. The alarm slider 9 is fixedly connected to the detection arm 8 by a round rod. An alarm whistle 19 is fixedly mounted on one side of the surface of the alarm slider 9. When airflow passes through the alarm whistle 19, the alarm whistle 19 can emit a sound and alert the operator.

[0046] In practical applications, under normal conditions, the detection arm 8 moves to the left under the push of the spring, with the direction referenced... Figure 3 At this time, the detection arm 8, through the telescopic rod, causes the shift slider 14 to move the filter cartridge 15 away from the fixed cartridge 16, while the shift slider 14 and the fixed cartridge 16 remain in communication. The detection arm 8, through the round rod, causes the alarm slider 9 to move the alarm whistle 19 away from the ventilation hole 501.

[0047] During prolonged operation, if the filter cartridge 15 becomes clogged, coolant will be unable to pass through it. At this time, as the coolant pump 6 continuously draws fluid from the coolant tank 5, the internal pressure of the coolant tank 5 further decreases. Simultaneously, the pressure in the fixed cylinder frame 16 decreases, forcing the filter cartridge 15 to tend to move towards the fixed cylinder frame 16. As the filter cartridge 15 moves to the right via the shift slider 14 and the telescopic rod, the detection arm 8 pushes the alarm whistle 19 on the alarm slider 9 to the ventilation hole 501 via a connecting rod. Due to the reduced internal pressure of the coolant tank 5, external airflow enters through the ventilation hole 501. When the alarm whistle 19 connects with the ventilation hole 501, airflow continuously passes through the alarm whistle 19, causing it to sound continuously, thus alerting the operator that the filter cartridge 15 is clogged and needs cleaning or replacement.

[0048] Based on this, combined Figures 2-4It can be seen that the top of the shifting slider 14 has a locking wedge block 17 that is bolted on. Correspondingly, the top of the inner side of the clamping box 4 has a locking hook 18 fixedly installed above the locking wedge block 17. As described in Embodiment 3, as the number of filter layers inside the clamping box 4 increases, the liquid separator 12 tends to move upward. During long-term operation, whenever the number of debris filter layers inside the clamping box 4 increases, the liquid separator 12 tends to drive the shifting slider 14 to move upward. When the locking wedge block 17 reaches the locking hook 18, since the locking hook 18 is "L" shaped, it will first abut against the inclined surface of the locking wedge block 17. As the liquid separator 12 drives the locking wedge block 17 to move upward through the shifting slider 14, the locking wedge block 17 tends to push the detection arm 8 to the right using its inclined surface. Finally, the locking hook 18 will hook onto the bottom of the locking wedge block 17, thereby restricting the downward movement of the shifting slider 14. At the same time, the detection arm 8 pushes the alarm slider 9 through the connecting rod to connect the alarm whistle 19 and the ventilation hole 501. After airflow passes through the alarm whistle 19, the alarm whistle 19 will sound, thereby warning the operator that there is an excessive amount of metal scrap stored inside the clamping box 4, and finally achieving the purpose of alarming for excessive scrap.

[0049] Finally, when it is time to clean up the debris, the magnet assembly 13 will no longer generate magnetism by de-energizing it. The chip discharge port at the bottom of the clamping box 4 will then be opened, allowing the metal debris stored in the clamping box 4 to be discharged outwards.

Claims

1. A CNC milling machine for manufacturing mechanical parts, characterized in that, Include: Frame (1), the top is provided with a main shaft assembly (3) for driving cutter cutting, and a feed assembly (2) for regulating horizontal movement of a support table (201) is surface-mounted; Clamping box (4), fixed on the surface of the support table (201), the top is provided with a clamping table (401), the surface of the clamping table (401) is provided with a groove for guiding and limiting the pressure plate assembly, and the groove is communicated with the inside of the clamping box (4); Cooling liquid tank (5), installed on one side of the bottom of the support table (201), containing cooling liquid, and cooling liquid pump (6) is installed on the side of the cooling liquid tank (5) to deliver cooling liquid to the cooling pipe (301) fixed on one side of the main shaft assembly (3); The cooling liquid output from the cooling pipe (301) can carry the cutting metal scraps into the inner cavity of the clamping box (4) for storage.

2. The numerically controlled milling machine for manufacturing of mechanical parts according to claim 1, characterized in that, The inside of the clamping box (4) is movably provided with a liquid separation plate (12), and the side of the liquid separation plate (12) is provided with a filter cartridge (15), which is communicated with the top of the cooling liquid tank (5) through a liquid delivery pipe (7); The filter cartridge (15) is located in the middle of the inner cavity of the clamping box (4), and after the cutting scraps are carried into the inner cavity of the clamping box (4) by the cooling liquid, the metal scraps will be deposited below the cooling liquid under the action of gravity, realizing the suction of the filter cartridge (15) to the upper cooling liquid.

3. The numerically controlled milling machine for manufacturing of mechanical parts according to claim 2, characterized in that, The top of the cooling liquid tank (5) is provided with a small air exchange hole (501) on one side of the liquid delivery pipe (7), and the top of the cooling liquid tank (5) is lower than the bottom of the clamping box (4).

4. The numerically controlled milling machine for manufacturing of mechanical parts according to claim 2, characterized in that, The inside of the liquid separation plate (12) is fixedly provided with a magnet assembly (13) below the filter cartridge (15), and after the magnet assembly (13) generates magnetism, it can prevent the scraps from moving towards the filter cartridge (15), and the metal scraps in the clamping box (4) are accumulated after being blocked by the magnet assembly (13), and the cooling liquid in the clamping box (4) flows to the filter cartridge (15) in turn, and then passes through the accumulated scrap layer for rough filtering, the magnet assembly (13) for magnetic filtering and the filter cartridge (15) for screen filtering.

5. The numerically controlled milling machine for manufacturing of mechanical parts according to claim 4, characterized in that, The side of the liquid separation plate (12) is provided with a one-way limiting tooth row (120), and the inside of the clamping box (4) is provided with a float (10) movably limited by an elliptical rod on the top, and the side of the float (10) is movably provided with a push rod (11) resisted by a spring into the one-way limiting tooth row (120).

6. The numerically controlled milling machine for manufacturing of mechanical parts according to claim 5, characterized in that, The teeth of the one-way limiting tooth row (120) are in the shape of a right triangle.

7. The numerically controlled milling machine for manufacturing of mechanical parts according to claim 5, characterized in that, The side of the liquid separation plate (12) is movably provided with a position changing sliding block (14), and the filter cartridge (15) is fixedly installed on the position changing sliding block (14), the side of the liquid separation plate (12) is fixedly provided with a fixed cylinder frame (16) sealingly sleeved with the filter cartridge (15), and the fixed cylinder frame (16) is communicated with the liquid delivery pipe (7); The inside of the clamping box (4) and above the filter cartridge (15) is movably provided with a detection arm (8) pushed by a spring, and the detection arm (8) and the position changing sliding block (14) are connected through an extension tube; The surface of the cooling liquid tank (5) is movably provided with an alarm sliding block (9) on one side of the air exchange hole (501), and the alarm sliding block (9) and the detection arm (8) are fixedly connected through a round rod, and the surface of the alarm sliding block (9) is fixedly provided with an alarm whistle (19).

8. The numerically controlled milling machine for manufacturing of mechanical parts according to claim 7, characterized in that, The top of the transposition slider (14) is tightly fixed with a locking wedge (17), and the inside top of the clamping box (4) is fixed with a locking pull hook (18) above the locking wedge (17).

9. The numerically controlled milling machine for manufacturing of mechanical parts according to claim 8, characterized in that, The locking pull hook (18) is in the shape of "L".

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