Numerical control machine tool and cooling liquid adjusting device thereof

Abstract

The invention relates to a numerical control machine tool and a cooling liquid adjusting device.The cooling liquid adjusting device comprises a mounting base and a cooling liquid pipe, a suction cup is arranged on the mounting base, a movable block is arranged on the mounting base, a limiting hole is formed in the mounting base, a directional block is arranged on the movable block, a through hole is formed in the directional block, and a first positioning assembly is arranged on the movable block; a second positioning assembly is arranged on the orientation block. The mounting base is quickly adsorbed and fixed through the suction cup, and the mounting position of the mounting base can be flexibly adjusted according to the change of the cutting position of the cutter, so that the spraying direction of the cooling liquid is changed, it is ensured that the spraying direction of the cooling liquid is always aligned with the cutting area of the cutter, and the situation that the cutter is damaged due to untimely heat dissipation is reduced; and the hanging length of the cooling liquid pipe can be adjusted by rotating the movable block, so that the situation that the cooling liquid pipe is wound and interferes with the machining process due to the too long cooling liquid pipe is avoided, and the situation that the position adjustment of the mounting base is limited due to the too short cooling liquid pipe can be avoided.

Description

Technical Field

[0001] This application relates to the field of machining equipment, and in particular to a CNC machine tool and its coolant regulating device. Background Technology

[0002] Numerical control machine tools are a type of automated machine tool equipped with a program control system, which can make the machine tool move and process parts according to a pre-programmed program.

[0003] During the machining process of CNC machine tools, coolant is needed to cool and protect the cutting tools. However, the cutting position of the cutting tool will move according to the machining requirements. The coolant pipes of traditional CNC machine tools are mostly fixed structures with a single and non-adjustable spray direction. After the cutting position of the cutting tool changes, the coolant may not be sprayed accurately on the cutting tool, resulting in the cutting tool not being able to dissipate heat in time and being damaged. This needs to be improved. Summary of the Invention

[0004] To address the issue of unidirectional and non-adjustable coolant spraying direction, this application provides a CNC machine tool and its coolant regulating device.

[0005] Firstly, the coolant regulating device provided in this application adopts the following technical solution:

[0006] A coolant regulating device includes a mounting base and a coolant pipe. The mounting base is provided with a suction cup, and a movable block is rotatably connected to the mounting base. The movable block is located on the side of the mounting base away from the suction cup. The mounting base has a limiting hole, and the movable block has a directional block with a through hole. The coolant pipe passes through the limiting hole and is wound around the movable block, and the coolant pipe extends out of the through hole. The movable block has a positioning component one for positioning, and the directional block has a positioning component two for positioning the coolant pipe.

[0007] By adopting the above technical solution, the mounting base can be quickly adsorbed and fixed by a suction cup. The installation position of the mounting base can be flexibly adjusted according to the change of the cutting position of the tool, thereby changing the spray direction of the coolant and ensuring that the coolant spray direction is always aimed at the cutting area of ​​the tool, reducing the possibility of damage caused by insufficient heat dissipation of the tool. After the mounting base is adjusted with the tool position, the coolant tube can be wound and stored or pulled out by rotating the movable block to adjust the length of the hanging coolant tube. This avoids the entanglement and interference of the machining process caused by the coolant tube being too long, and also avoids the limitation of the mounting base position adjustment caused by the coolant tube being too short.

[0008] Optionally, the positioning component includes a slider slidably connected within the movable block, a positioning block disposed on the slider, and an adjusting block threadedly connected to the movable block. The slider slides closer to or away from the suction cup. The positioning block is located on the side of the slider closer to the suction cup. The mounting base has a plurality of positioning grooves, which are circumferentially spaced along the rotation direction of the movable block. The positioning grooves are for the positioning block to engage. The adjusting block is located on the side of the slider away from the suction cup and is rotatably connected to the slider. The rotation axes of the adjusting block and the slider are parallel to the rotation axis of the movable block.

[0009] By adopting the above technical solution, when it is necessary to rotate the movable block, the adjusting block is twisted, causing the adjusting block to move the slider away from the suction cup, so that the positioning block 1 is disengaged from the positioning groove, and the movable block can be rotated. After the length of the coolant pipe hanging down is adjusted and the positioning block 1 is aligned with the positioning groove, the adjusting block is twisted in the opposite direction, causing the adjusting block to move the slider closer to the suction cup, so that the positioning block 1 is inserted into the positioning groove. The movable block is positioned by the positioning block 1 abutting against the inner wall of the positioning groove, which is convenient to operate.

[0010] Optionally, a positioning ring groove is formed on the outer wall of the coolant pipe. The positioning component two includes a positioning block two slidably connected to the orientation block, a magnetic block provided on the positioning block two, and a permanent magnet provided on the orientation block. The positioning block two is located on one side of the orientation block along the radial direction of the through hole, and the positioning block two slides closer to or away from the through hole. The positioning block two has a through hole for the coolant pipe to pass through. The positioning ring groove is for the positioning block two to be engaged. The permanent magnet is used to attract the magnetic block.

[0011] By adopting the above technical solution, after the coolant pipe passes through the through hole and is perforated, the coolant pipe is moved to align the positioning ring groove and the second positioning block. Then, the second positioning block is moved closer to the through hole so that it is engaged in the positioning ring groove. The second positioning block is positioned by the attraction between the magnetic block and the permanent magnet. At this time, the coolant pipe is positioned on the directional block by the second positioning block abutting against the inner wall of the positioning ring groove. The operation is convenient and can avoid the displacement of the coolant pipe caused by machine tool vibration and pipe pulling during the processing, ensuring that the coolant spray direction is always aligned with the cutting area of ​​the tool.

[0012] Optionally, the mounting base includes a base body, an elastic sheet one and an elastic sheet two disposed on the base body. The elastic sheet one includes a connecting portion disposed on the base body and an extension portion disposed on the connecting portion. The extension portion is located on the side of the connecting portion away from the base body and at both ends of the connecting portion. The extension portion and the connecting portion are joined to form a groove. The side of the extension portion near the groove is provided with a plurality of protrusions. The plurality of protrusions are spaced apart along the length direction of the extension portion. The protrusions are provided with guide surfaces. The guide surfaces are located on the side of the protrusions away from the connecting portion and are inclined towards the groove in the direction of approaching the connecting portion. Adjacent protrusions and extension portions are joined to form a slot.

[0013] The second elastic piece includes a fixing part disposed on the base and an mounting part disposed on the fixing part. The mounting part is located on the side of the fixing part close to the first elastic piece. The mounting part is inclined away from the base in a direction away from the fixing part. The limiting hole is disposed on the mounting part. The groove and the slot are for the mounting part to be engaged.

[0014] By adopting the above technical solution, when the mounting base is adjusted to be above the processing area, the mounting part can be pressed against the guide surface, causing the extensions at both ends of the connecting part to elastically deform in a direction away from each other. After the mounting part is aligned with the target slot, the extensions elastically reset, allowing the mounting part to be inserted into the slot. The mounting part is then limited by the protrusion pressing against it. In this way, the mounting part can be selectively inserted into slots at different positions, thereby flexibly adjusting the hanging area of ​​the coolant pipe, avoiding interference between the coolant pipe and the workpiece, tool, or processing action, and ensuring the smooth progress of the processing.

[0015] Optionally, a cover ring is slidably connected to the mounting base. The cover ring is located on the side of the mounting base near the suction cup and is arranged around the outer periphery of the suction cup. The sliding direction of the cover ring is parallel to the rotation axis of the movable block. An elastic element is provided between the cover ring and the mounting base. The elastic element abuts against the cover ring, so that the cover ring tends to move closer to the suction cup.

[0016] By adopting the above technical solution, when the suction cup is adsorbed onto the machine tool, the cover ring can fit against the machine tool surface and surround the suction cup adsorption area to form a ring barrier, reducing the penetration of external coolant into the contact surface between the suction cup and the machine tool, which is conducive to improving the stability of the mounting seat adsorption and fixation, and can also prevent chips and oil stains generated during the processing from directly adhering to the suction cup surface, reducing the frequency of suction cup cleaning.

[0017] Optionally, the suction cup includes a main body and a connecting block disposed on the main body, and the mounting base has a threaded groove for threaded connection of the connecting block.

[0018] By adopting the above technical solution, the suction cup can be detachably fixed to the mounting base through the threaded engagement of the connecting block and the threaded groove. Different specifications of suction cups can be flexibly replaced according to the machine tool surface material, adsorption area requirements, or suction cup wear, to adapt to diverse processing conditions.

[0019] Secondly, this application provides a CNC machine tool, including the aforementioned coolant regulating device.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] 1. The mounting base is quickly attached and fixed by suction cups. The installation position of the mounting base can be flexibly adjusted according to the change of the cutting position of the tool, thereby changing the spray direction of the coolant and ensuring that the coolant spray direction is always aimed at the cutting area of ​​the tool. This reduces the possibility of damage to the tool due to insufficient heat dissipation. After the mounting base is adjusted with the tool position, the coolant tube can be wound up or pulled out by rotating the movable block to adjust the length of the hanging coolant tube. This avoids the entanglement and interference of the machining process caused by the coolant tube being too long, and also avoids the limitation of the mounting base position adjustment caused by the coolant tube being too short.

[0022] 2. After the coolant pipe passes through the through hole and the perforation is made, move the coolant pipe so that the positioning ring groove and the second positioning block are aligned. Then move the second positioning block closer to the through hole so that the second positioning block is engaged in the positioning ring groove. The second positioning block is positioned by the attraction between the magnetic block and the permanent magnet. At this time, the coolant pipe is positioned on the directional block by the second positioning block abutting against the inner wall of the positioning ring groove. The operation is convenient and can avoid the displacement of the coolant pipe caused by machine tool vibration and pipe pulling during the processing, ensuring that the coolant spray direction is always aligned with the cutting area of ​​the tool.

[0023] 3. The mounting section can be selectively snapped into different slots, thereby flexibly adjusting the hanging area of ​​the coolant pipe, avoiding interference between the coolant pipe and the workpiece, tool, or machining action, and ensuring the smooth progress of the machining process. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of an embodiment of this application.

[0025] Figure 2 This is a partial structural diagram of an embodiment of this application.

[0026] Figure 3 This is a partial cross-sectional view of an embodiment of this application, mainly showing the structure of the suction cup.

[0027] Figure 4 This is a partial structural diagram of an embodiment of this application, mainly showing the structure of the extension block.

[0028] Figure 5 for Figure 2 The enlarged view of section A mainly shows the structure of the limiting hole.

[0029] Figure 6 This is a partial structural diagram of an embodiment of this application, mainly showing the structure of the groove and the slot.

[0030] Figure 7 This is a partial structural diagram of an embodiment of this application, mainly showing the structure of the positioning groove.

[0031] Figure 8 This is a partial structural diagram of an embodiment of this application, mainly showing the structure of the adjustment block.

[0032] Figure 9 This is a partial exploded structural diagram of an embodiment of this application, mainly showing the structure of the permanent magnet.

[0033] Figure 10 This is a partial structural diagram of an embodiment of this application, mainly showing the structure of the magnetic block.

[0034] Explanation of reference numerals in the attached drawings: 1. Mounting base; 11. Base body; 111. Main body; 1111. Threaded groove; 1112. Positioning groove; 112. Extension block; 12. Elastic sheet one; 121. Connecting part; 122. Extension part; 13. Elastic sheet two; 131. Fixing part; 132. Mounting part; 1321. Limiting hole; 2. Coolant pipe; 21. Positioning ring groove; 3. Suction cup; 31. Main body; 32. Connecting block; 4. Cover ring; 41 1. Slide groove; 5. Elastic element; 6. Groove; 7. Protrusion; 71. Guide surface; 8. Slot; 9. Movable block; 91. Mounting groove; 10. Orientation block; 101. Through hole; 14. Positioning component one; 141. Slider; 142. Positioning block one; 143. Adjustment block; 15. Positioning component two; 151. Positioning block two; 1511. Abutting part; 1512. Snap-fitting part; 152. Magnetic block; 153. Permanent magnet; 16. Perforation. Detailed Implementation

[0035] The following is in conjunction with the appendix Figures 1-10 This application will be described in further detail.

[0036] This application discloses a CNC machine tool, referring to... Figures 1-10 The CNC machine tool includes a coolant regulating device, which includes a mounting base 1 and a coolant pipe 2. The mounting base 1 includes a base body 11, an elastic plate 12 and an elastic plate 2 13. The base body 11 includes a main body 111 and a plurality of extension blocks 112. The plurality of extension blocks 112 are evenly distributed around the outer periphery of the main body 111, and the extension blocks 112 and the main body 111 are fixedly connected.

[0037] Reference Figures 1-10The outer side wall of the main body 111 is provided with a threaded groove 1111. A suction cup 3 is installed on the main body 111. The suction cup 3 includes a main body 31 and a connecting block 32. The connecting block 32 is fixed to one side of the main body 31. The threaded groove 1111 is used for threaded connection of the connecting block 32. The suction cup 3 is detachably fixed to the main body 111 through the threaded engagement of the connecting block 32 and the threaded groove 1111.

[0038] Reference Figures 1-10 A cover ring 4 is slidably connected to the base 11. The cover ring 4 is located on the side of the body 111 near the main body 31 and is arranged around the outer periphery of the main body 31. Several sliding grooves 41 are opened on the inner wall of the cover ring 4. The number and position of the sliding grooves 41 correspond one-to-one with the number and position of the extension blocks 112. Each extension block 112 is slidably connected in the corresponding sliding groove 41. The cover ring 4 is slidably connected to the base 11 through the cooperation of the sliding grooves 41 and the extension blocks 112. An elastic member 5 is fixed between the cover ring 4 and the base 11. The number and position of the elastic member 5 correspond one-to-one with the number and position of the sliding grooves 41. Each elastic member 5 is located in the corresponding sliding groove 41 and on the side of the extension block 112 near the main body 31. The opposite ends of the elastic member 5 are fixedly connected to the inner wall of the sliding groove 41 and the corresponding extension block 112, respectively. The elastic member 5 presses against the cover ring 4, so that the cover ring 4 tends to move closer to the main body 31. In this embodiment, the elastic member 5 is a spring.

[0039] Reference Figures 1-10 The elastic sheet 12 is located on the side of the body 111 away from the main body 31. The elastic sheet 12 includes a connecting part 121 and two extension parts 122. The connecting part 121 is fixed to the body 111. The two extension parts 122 are located on the side of the connecting part 121 away from the body 111 and are respectively located at both ends of the connecting part 121. The extension parts 122 and the connecting part 121 are integrally fixed. The two extension parts 122 and the connecting part 121 are spliced ​​to form a groove 6. Each extension part 122 has several protrusions fixed on the side near the groove 6. 7. Several protrusions 7 are evenly spaced along the length of the extension 122, and the number and position of the protrusions 7 on the two extensions 122 correspond one-to-one. A guide surface 71 is formed on the outer side wall of each protrusion 7. The guide surface 71 is located on the side of the protrusion 7 away from the connecting part 121, and the guide surface 71 is inclined towards the groove 6 in the direction close to the connecting part 121. Adjacent protrusions 7 and extensions 122 are spliced ​​to form a slot 8. In this embodiment, the extension 122 and the connecting part 121 are iron sheets with elasticity.

[0040] Reference Figures 1-10The second elastic piece 13 is located on the side of the main body 111 near the first elastic piece 12. The second elastic piece 13 includes a fixing part 131 and a mounting part 132. The fixing part 131 is fixed to the main body 111. The mounting part 132 is located on the side of the fixing part 131 near the first elastic piece 12 and is integrally fixed with the fixing part 131. The mounting part 132 is inclined away from the main body 111 in a direction away from the fixing part 131. A limiting hole 1321, a groove 6 and a slot 8 are provided on the mounting part 132 for the mounting part 132 to be inserted. In this embodiment, the fixing part 131 and the mounting part 132 are iron sheets and have elasticity.

[0041] Reference Figures 1-10 A movable block 9 is rotatably connected to the main body 111. The movable block 9 is located on the side of the mounting base 1 away from the suction cup 3, and the rotation axis of the movable block 9 is parallel to the sliding direction of the cover ring 4. A directional block 10 is fixed on the movable block 9. The directional block 10 is located on the side of the movable block 9 away from the main body 31. A through hole 101 is opened on the directional block 10. The through hole 101 passes through the directional block 10 along the rotation axis of the movable block 9. The coolant pipe 2 passes through the limiting hole 1321 and is wound around the movable block 9. The coolant pipe 2 passes through the through hole 101.

[0042] Reference Figures 1-10 The movable block 9 is provided with a positioning component 14 for positioning. The positioning component 14 includes a slider 141, several positioning blocks 142, and an adjusting block 143. The end face of the movable block 9 away from the main body 111 is provided with a mounting groove 91. The slider 141 is located in the mounting groove 91 and slides closer to or away from the main body 31. The several positioning blocks 142 are fixed to the side of the slider 141 near the main body 31 and are evenly distributed circumferentially along the rotation direction of the movable block 9. The several positioning blocks 142 all protrude towards the direction closer to the main body 111. The movable block 9 has a positioning groove 1112 on the outer wall of the main body 111 near the movable block 9. The number and position of the positioning groove 1112 correspond one-to-one with the number and position of the positioning blocks. The positioning groove 1112 is for the positioning block 142 to be inserted. The adjusting block 143 is located in the mounting groove 91 and on the side of the slider 141 away from the main body 31. The adjusting block 143 and the slider 141 are rotatably connected, and the rotation axis of the adjusting block 143 and the slider 141 is parallel to the rotation axis of the movable block 9. The adjusting block 143 and the movable block 9 are threadedly connected.

[0043] In practical use, when it is necessary to rotate the movable block 9, twist the adjusting block 143 so that the adjusting block 143 drives the slider 141 to move away from the suction cup 3, so that the positioning block 142 disengages from the positioning groove 1112. Then the movable block 9 can be rotated to realize the winding and storage or pulling out of the coolant pipe 2. After the length of the coolant pipe 2 hanging down is adjusted and the positioning block 142 and the positioning groove 1112 are aligned, twist the adjusting block 143 in the opposite direction. The adjusting block 143 drives the slider 141 to move closer to the suction cup 3, so that the positioning block 142 is inserted into the positioning groove 1112. By the positioning block 142 abutting against the inner wall of the positioning groove 1112, the movable block 9 can be positioned.

[0044] Reference Figures 1-10 Two positioning ring grooves 21 are provided on the outer wall of the coolant pipe 2. The two positioning ring grooves 21 are arranged at intervals along the length of the coolant pipe 2 and are arranged around the outer periphery of the coolant pipe 2.

[0045] Reference Figures 1-10 The directional block 10 is provided with a positioning component 2 15, which is used to position the coolant pipe 2. The positioning component 2 15 includes a positioning block 2 151, a magnetic block 152, and a permanent magnet 153. The positioning block 2 151 includes an abutment part 1511 and two locking parts 1512. The abutment part 1511 is located on one side of the directional block 10 along the radial direction of the through hole 101, and the abutment part 1511 slides closer to or away from the through hole 101. The two locking parts 1512 are respectively located on opposite sides of the directional block 10 and fit against the directional block. Block 10, and two snap-fit ​​parts 1512 are respectively fixed to the opposite ends of the abutment part 1511. Each snap-fit ​​part 1512 is provided with a through hole 16 for the coolant pipe 2 to pass through. The positioning ring groove 21 is for the snap-fit ​​part 1512 to be snapped into. The magnetic block 152 is located on the side of the abutment part 1511 near the directional block 10 and is embedded in the abutment part 1511. The permanent magnet 153 is located on the side of the directional block 10 near the abutment part 1511 and is embedded in the directional block 10. The permanent magnet 153 is used to attract the magnetic block 152.

[0046] In practical use, after the coolant pipe 2 passes through the through hole 101 and through the through hole 16, the coolant pipe 2 is moved so that the positioning ring groove 21 and the snap-fit ​​part 1512 are aligned. Then, the abutment part 1511 is moved close to the through hole 101 so that the snap-fit ​​part 1512 is snapped into the positioning ring groove 21. The positioning block 151 is positioned by the attraction between the magnetic block 152 and the permanent magnet 153. At this time, the positioning of the coolant pipe 2 on the orientation block 10 can be achieved by the snap-fit ​​part 1512 abutting against the inner wall of the positioning ring groove 21.

[0047] The implementation principle of this application embodiment is as follows:

[0048] Mounting base 1 is quickly adsorbed and fixed by suction cup 3. The installation position of mounting base 1 can be flexibly adjusted according to the change of tool cutting position, thereby changing the spray direction of coolant and ensuring that the coolant spray direction is always aimed at the tool cutting area, reducing the possibility of tool damage due to insufficient heat dissipation. After the mounting base 1 is adjusted with the tool position, the coolant tube 2 can be wound and stored or pulled out by rotating the movable block 9, so as to adjust the length of the hanging coolant tube 2. This avoids the entanglement and interference of the machining process caused by the coolant tube 2 being too long, and also avoids the limitation of the position adjustment of mounting base 1 being too short.

[0049] When the mounting base 1 is positioned above the machining area, pressing the mounting part 132 causes it to press against the guide surface 71, resulting in elastic deformation of the extensions 122 at both ends of the connecting part 121 in a direction away from each other. Once the mounting part 132 is aligned with the target slot 8, the extensions 122 return to their original position due to their elasticity, causing the mounting part 132 to snap into the slot 8. The protrusion 7 then presses against the mounting part 132 to limit its position. In this way, the mounting part 132 can selectively snap into different slots 8, thereby flexibly adjusting the hanging area of ​​the coolant pipe 2, preventing interference between the coolant pipe 2 and the workpiece, tool, or machining action, and ensuring the smooth progress of the machining process.

[0050] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A coolant regulating device, characterized in that: The device includes a mounting base (1) and a coolant pipe (2). The mounting base (1) is provided with a suction cup (3). A movable block (9) is rotatably connected to the mounting base (1). The movable block (9) is located on the side of the mounting base (1) away from the suction cup (3). A limiting hole (1321) is provided on the mounting base (1). A directional block (10) is provided on the movable block (9). A through hole (101) is provided on the directional block (10). The coolant pipe (2) passes through the limiting hole (1321) and is wound around the movable block (9). The coolant pipe (2) also passes through the through hole (101). A positioning component one (14) for positioning is provided on the movable block (9). A positioning component two (15) for positioning the coolant pipe (2) is provided on the directional block (10).

2. The coolant regulating device according to claim 1, characterized in that: The positioning component (14) includes a slider (141) slidably connected to the movable block (9), a positioning block (142) disposed on the slider (141), and an adjusting block (143) threadedly connected to the movable block (9). The slider (141) slides closer to or away from the suction cup (3). The positioning block (142) is located on the side of the slider (141) closer to the suction cup (3). The mounting base (1) is provided with a plurality of positioning grooves (1112). The plurality of positioning grooves (1112) are circumferentially spaced along the rotation direction of the movable block (9). The positioning grooves (1112) are for the positioning block (142) to be inserted. The adjusting block (143) is located on the side of the slider (141) away from the suction cup (3) and is rotatably connected to the slider (141). The rotation axes of the adjusting block (143) and the slider (141) are parallel to the rotation axis of the movable block (9).

3. The coolant regulating device according to claim 1, characterized in that: The outer wall of the coolant pipe (2) is provided with a positioning ring groove (21). The positioning component two (15) includes a positioning block two (151) slidably connected to the orientation block (10), a magnetic block (152) provided on the positioning block two (151), and a permanent magnet (153) provided on the orientation block (10). The positioning block two (151) is located on one side of the orientation block (10) along the radial direction of the through hole (101), and the positioning block two (151) slides closer to or away from the through hole (101). The positioning block two (151) is provided with a through hole (16) for the coolant pipe (2) to pass through. The positioning ring groove (21) is for the positioning block two (151) to be inserted into. The permanent magnet (153) is used to attract the magnetic block (152).

4. The coolant regulating device according to claim 1, characterized in that: The mounting base (1) includes a base body (11), an elastic sheet one (12) and an elastic sheet two (13) disposed on the base body (11). The elastic sheet one (12) includes a connecting portion (121) disposed on the base body (11) and an extension portion (122) disposed on the connecting portion (121). The extension portion (122) is located on the side of the connecting portion (121) away from the base body (11) and is located at both ends of the connecting portion (121). The extension portion (122) and the connecting portion (121) are joined to form a groove (6). The extension (122) has a plurality of protrusions (7) on the side near the groove (6). The plurality of protrusions (7) are spaced apart along the length of the extension (122). The protrusions (7) have guide surfaces (71) on them. The guide surfaces (71) are located on the side of the protrusions (7) away from the connecting part (121), and the guide surfaces (71) are inclined toward the groove (6) in the direction of the connecting part (121). Adjacent protrusions (7) and the extension (122) are spliced ​​together to form a slot (8). The second elastic piece (13) includes a fixing part (131) provided on the seat (11) and an mounting part (132) provided on the fixing part (131). The mounting part (132) is located on the side of the fixing part (131) close to the first elastic piece (12). The mounting part (132) is inclined away from the seat (11) in a direction away from the fixing part (131). The limiting hole (1321) is provided on the mounting part (132). The groove (6) and the slot (8) are for the mounting part (132) to be engaged.

5. The coolant regulating device according to claim 1, characterized in that: A cover ring (4) is slidably connected to the mounting base (1). The cover ring (4) is located on the side of the mounting base (1) near the suction cup (3) and is arranged around the outer periphery of the suction cup (3). The sliding direction of the cover ring (4) is parallel to the rotation axis of the movable block (9). An elastic element (5) is provided between the cover ring (4) and the mounting base (1). The elastic element (5) abuts against the cover ring (4), so that the cover ring (4) tends to move closer to the suction cup (3).

6. The coolant regulating device according to claim 1, characterized in that: The suction cup (3) includes a main body (31) and a connecting block (32) provided on the main body (31). The mounting base (1) has a threaded groove (1111) for threaded connection of the connecting block (32).

7. A CNC machine tool, characterized in that: Includes the coolant regulating device according to any one of claims 1-6.

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