Numerical control machine tool with automatic tool setting structure

Abstract

The present application relates to the technical fields of numerical control machine, and provides a numerical control machine tool with an automatic tool setting structure, which comprises a numerical control machine tool and a control panel; the control panel is installed on both sides of the front end of the numerical control machine tool; a guide rail is fixedly installed in the numerical control machine tool; a guide seat is installed at the top end of the guide rail; a screw rod is fixedly installed at the rear end of the guide rail; and the outer side of the screw rod is sleeved with a screw sleeve; the top end of the screw sleeve is fixed with the top of the rear end of the guide seat; and a moving frame is installed at the top end of the guide seat. Through the cooperation of the movable block and the guide groove, when the tool is replaced, the second rack drives the first gear to rotate, and the first gear drives the fixed seat on one side of the first rack to move to the other side through the cooperation with the second gear, thereby indirectly driving the tool to move, so that the tool tip can still be aligned with the tool setting point of the workpiece when different tools are replaced, and the tool does not need to be re-set when the tool is replaced, so that the machining is more convenient.

Description

Technical Field

[0001] This invention relates to the field of CNC machine technology, and in particular to a CNC machine tool equipped with an automatic tool setting structure. Background Technology

[0002] CNC machine tools, also known as numerical control machine tools, are automated machine tools equipped with a program control system. They control the machine tool through digital signals to achieve automatic machining of parts. CNC machine tools have wide applications in the field of machining, especially excelling in machining complex, precision, small-batch, and multi-variety parts. They can perform various machining operations such as milling, boring, drilling, turning, reaming, expanding, and tapping, greatly improving production efficiency and machining accuracy.

[0003] Before machining, CNC machine tools require tool setting. Tool setting is a crucial step in CNC machining to establish the relative positional relationship between the workpiece and the machine tool. Its purpose is to ensure the consistency between the programming coordinate origin and the machining coordinate origin, which directly affects the machining quality and efficiency of the parts. However, traditional CNC machine tools require a new tool setting process when changing to different specifications of tools after tool setting, which makes machining more troublesome. Therefore, a CNC machine tool with an automatic tool setting structure is needed to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a CNC machine tool with an automatic tool setting structure, in order to solve the defect that existing CNC machine tools require a new tool setting process when changing to different specifications of tools after tool setting, which makes the machining process more troublesome.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a CNC machine tool equipped with an automatic tool setting structure, comprising a CNC machine tool and a control panel; control panels are installed on both sides of the front end of the CNC machine tool; a guide rail is fixedly installed inside the CNC machine tool; a guide seat is installed at the top of the guide rail; a lead screw is fixedly installed at the rear end of the guide rail; a lead screw is sleeved on the outer side of the lead screw; the top of the lead screw is fixed to the top of the rear end of the guide seat; a movable frame is installed at the top of the guide seat; a tool setting assembly is installed at the top of the movable frame; a drive motor is installed inside one side of the CNC machine tool; a three-jaw chuck is installed at the output end of the drive motor; a coolant tank is installed inside one side of the CNC machine tool; and a... The CNC machine tool includes auxiliary components. A collection groove is provided inside the bottom of the CNC machine tool; a movable groove is provided on one side of the rear end of the CNC machine tool; a water outlet is installed at the rear end of one side of the CNC machine tool; the tool setting assembly includes a connecting plate, a fixed seat, a tool setting structure, a rotating rod, a slide, a nut, a screw, and a stop block; the connecting plate is installed on the top of the movable frame; the bottom of the connecting plate is connected to the top of the internal threaded sleeve of the movable frame; a fixed seat is movably installed on the top of the connecting plate; a tool setting structure is provided inside the fixed seat; a rotating rod is installed inside one end of one side of the fixed seat; a stop block is movably installed at one end of the rotating rod; the slide is installed on the top of the connecting plate at the rear end of the fixed seat; a screw is fixed at the rear end of the fixed seat; and a nut is sleeved on the outside of the screw.

[0006] Preferably, the tool setting structure includes a movable block, a positioning bolt, a guide groove, a first gear, a first rack, a second rack, a second gear, and a spring. The guide groove is formed inside one side of the fixed seat, and the movable block is installed inside the guide groove. A positioning bolt is installed at the top of one side of the fixed seat. Springs are installed at both ends of one side of the movable block. A second rack is fixed to one side of the movable block. A first rack is fixed to one end of one side of the fixed seat. A first gear is movably installed at the top of a connecting plate at one end of the second rack. A second gear is movably installed on one side of the first gear.

[0007] Preferably, the two ends of the spring are fixed to one side inside the fixed seat and one side inside the movable block, respectively, and the spring and the movable block form a telescopic structure.

[0008] Preferably, a plurality of teeth are provided on one side of the second rack, and the second rack meshes with the first gear.

[0009] Preferably, one end of the rotating rod is inserted into the interior of one side of the fixed seat, and the rotating rod and the fixed seat are threaded together.

[0010] Preferably, the outer side of the screw is provided with external threads, and the inner side of the nut is provided with internal threads, forming a threaded connection between the nut and the screw.

[0011] Preferably, the auxiliary components include a fixed disc, a cooling structure, a connecting disc, and a filtering structure. The fixed disc is fixed to the outside of the output shaft of the drive motor. A connecting disc is movably mounted on one side of the fixed disc. One end of the connecting disc is movably connected to one side of the CNC machine tool. A cooling structure is provided at the other end of the connecting disc. A filtering structure is provided at the top of the collection tank.

[0012] Preferably, the cooling structure includes a belt pulley, a connecting belt, a cooling pipe, a water pump, and an output plate. The belt pulley is installed at one end of the connecting plate, the water pump is installed on one side of the coolant tank, and an output plate is installed on one side of the water pump. The belt pulley is connected to the output plate via the connecting belt. A cooling pipe is installed on the outside of the water pump, and the water pump inlet is connected to the coolant tank.

[0013] Preferably, the filter structure includes a connecting rod, a filter screen, a discharge trough, an eccentric wheel, a baffle plate, and a collection box. The connecting rod is installed on one side of the output disc, and an eccentric wheel is fixed to the outer side of one end of the connecting rod. The filter screen is installed at the top of the collection trough. The discharge trough is opened inside the CNC machine tool on one side of the collection trough. One end of the filter screen is hinged to both sides of the discharge trough. Baffle plates are fixed to both sides of the top of the filter screen. The collection box is installed inside the movable trough.

[0014] Preferably, the barrier plates are provided in two sets, and the two sets of barrier plates are symmetrically distributed at the top of the filter screen.

[0015] The present invention provides a CNC machine tool equipped with an automatic tool setting structure, the advantages of which are:

[0016] By using the movable block and guide groove together, the first gear can be rotated by the second rack when changing tools. When the first gear rotates, it works with the second gear to move the fixed seat on one side of the first rack to the other side, thereby indirectly moving the tool. This ensures that when changing different tools, the tool tip can still be aligned with the tool setting point of the workpiece after tool setting, so that tool setting does not need to be re-set when changing tools, making the machining process more convenient.

[0017] By using a filter screen, debris in the coolant can be filtered out, allowing the coolant to be recycled and reused. The output disc drives the eccentric wheel to rotate, which vibrates the filter screen. Since the filter screen is tilted to one side, the debris is vibrated into the collection box, thus completing the collection of debris. Attached Figure Description

[0018] Figure 1 This is a frontal three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 This is a frontal cross-sectional three-dimensional structural schematic diagram of the present invention;

[0020] Figure 3 This is a frontal view of a partial three-dimensional structure of the present invention;

[0021] Figure 4 This is a schematic diagram of the rear view of a partial three-dimensional structure of the present invention;

[0022] Figure 5 This is a frontal three-dimensional structural diagram of the automatic tool setting structure of the present invention;

[0023] Figure 6 This is a top view of a partial three-dimensional structure of the automatic tool setting structure of the present invention;

[0024] Figure 7 This is a schematic diagram of the three-dimensional structure of the present invention from a left-side cross-section.

[0025] Figure 8 This is a schematic diagram of the three-dimensional structure of the present invention from a right-side cross-section.

[0026] Figure 9 This is a partial three-dimensional structural diagram of the auxiliary structure of the present invention;

[0027] Figure 10 This is a side view of the three-dimensional structure of the auxiliary structure of the present invention;

[0028] Figure 11 This is a bottom-view structural diagram of the present invention.

[0029] The following are the annotations in the diagram: 1. CNC machine tool; 2. Control panel; 3. Guide rail; 4. Guide seat; 5. Moving frame; 6. Tool setting assembly; 61. Connecting plate; 62. Fixed seat; 63. Tool setting structure; 631. Moving block; 632. Positioning bolt; 633. Guide groove; 634. First gear; 635. First rack; 636. Second rack; 637. Second gear; 638. Spring; 64. Rotating rod; 65. Slide; 66. Nut; 67. Screw; 68. Stop block; 7. Coolant tank. ; 8. Drive motor; 9. Auxiliary components; 91. Fixed disc; 92. Cooling structure; 921. Belt pulley; 922. Connecting belt; 923. Cooling pipe; 924. Water pump; 925. Output disc; 93. Connecting disc; 94. Filter structure; 941. Connecting rod; 942. Filter screen; 943. Discharge chute; 944. Eccentric wheel; 945. Baffle plate; 946. Collection box; 10. Lead screw; 11. Lead sleeve; 12. Three-jaw chuck; 13. Collection trough; 14. Movable trough; 15. Water outlet. Detailed Implementation

[0030] 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.

[0031] Please see Figures 1-11 This invention provides a CNC machine tool with an automatic tool setting structure, comprising a CNC machine tool 1 and a control panel 2; the control panel 2 is installed on both sides of the front end of the CNC machine tool 1; a guide rail 3 is fixedly installed inside the CNC machine tool 1; a guide seat 4 is installed at the top of the guide rail 3; a lead screw 10 is fixedly installed at the rear end of the guide rail 3; the outer side of the lead screw 10 is sleeved on a lead sleeve 11; the top end of the lead sleeve 11 is fixed to the top of the rear end of the guide seat 4; a movable frame 5 is installed at the top of the guide seat 4; a tool setting assembly 6 is installed at the top of the movable frame 5; a drive motor 8 is installed inside one side of the CNC machine tool 1; a three-jaw chuck 12 is installed at the output end of the drive motor 8; a coolant tank 7 is installed inside one side of the CNC machine tool 1; an auxiliary assembly 9 is provided inside one side of the CNC machine tool 1; and a collection groove is opened inside the bottom end of the CNC machine tool 1. 13; A movable groove 14 is provided on one side of the rear end of the CNC machine tool 1, and a water outlet 15 is installed at the rear end of one side of the CNC machine tool 1. The tool setting assembly 6 includes a connecting plate 61, a fixed seat 62, a tool setting structure 63, a rotating rod 64, a slide 65, a nut 66, a screw 67, and a stop block 68. The connecting plate 61 is installed on the top of the movable frame 5, and the bottom end of the connecting plate 61 is connected to the top end of the internal screw sleeve of the movable frame 5. The fixed seat 62 is movably installed on the top of the connecting plate 61. The tool setting structure 63 is provided inside the fixed seat 62. A rotating rod 64 is installed inside one end of one side of the fixed seat 62. A stop block 68 is movably installed at one end of the rotating rod 64. The slide 65 is installed on the top of the connecting plate 61 at the rear end of the fixed seat 62. A screw 67 is fixed at the rear end of the fixed seat 62, and a nut 66 is sleeved on the outside of the screw 67.

[0032] Specifically, in this embodiment, when machining a workpiece using a CNC machine tool 1, tool setting is first required to determine the machining data. For tool setting, the workpiece is first fixed on a three-jaw chuck 12. After fixing, the tool is placed inside a fixed base 62. After placement, the rotating rod 64 is rotated. With the cooperation between the rotating rod 64 and the fixed base 62, the abutment block 68 is pushed to one side to abut against one side of the tool for fixing. After the tool is fixed, an external power source starts the motor on one side of the lead screw 10, causing the lead screw 10 to rotate. When the lead screw 10 rotates, it cooperates with the threaded sleeve 11 to move the guide seat 4 on the guide rail 3, causing the tool tip to contact one side of the workpiece, thus determining the X-axis coordinate of the workpiece. Then, the height adjustment component inside the guide seat 4 is activated to adjust the tool height, determining the Z-axis coordinate. Finally, an external power source activates the internal screw of the moving frame 5, adjusting the Y-axis position of the tool through the cooperation of the screw and the threaded sleeve, thereby determining the Y-axis coordinate of the tool and completing the tool setting process.

[0033] Reference Figure 1 and Figure 1 As shown: The tool setting structure 63 includes a movable block 631, a positioning pin 632, a guide groove 633, a first gear 634, a first rack 635, a second rack 636, a second gear 637, and a spring 638. The guide groove 633 is formed inside one side of the fixed base 62. The movable block 631 is installed inside the guide groove 633. The positioning pin 632 is installed at the top of one side of the fixed base 62. Springs 638 are installed at both ends of one side of the movable block 631. The second rack 636 is fixed to one side of the movable block 631. The first rack 635 is fixed to one end of one side of the fixed base 62. The second rack 637 is movably mounted on the top of the connecting plate 61 at one end of the second rack 636. A first gear 634 is attached to one side, and a second gear 637 is movably mounted on one side. The two ends of a spring 638 are fixed to one side of the fixed base 62 and the other side of the movable block 631, respectively. The spring 638 and the movable block 631 form a telescopic structure. A second rack 636 has several teeth on one side and meshes with the first gear 634. One end of a rotating rod 64 is inserted into the interior of one side of the fixed base 62 and is threadedly connected to the fixed base 62. The outer side of a screw 67 has an external thread, and the inner side of a nut 66 has an internal thread. The nut 66 and the screw 67 form a threaded connection.

[0034] Specifically, in this embodiment, when changing different cutting tools, when a larger cutting tool is needed, the original cutting tool is removed. Before removing the original cutting tool, the positioning bolt 632 is rotated so that its bottom end rests against the top of the movable block 63 to position the movable block 631. When a larger cutting tool is installed, the bottom end of the larger cutting tool is first placed against one side of the movable block 631, and then the positioning bolt 632 is released and pressed down to completely install the larger cutting tool into the fixed base 62. At this time, the initial cutting tool specification is compared to 2, and the cutting tip position is centered at position 1. After tool setting, the cutting tip is aligned with the origin point on one side of the workpiece. When a cutting tool of specification 3 is installed, the cutting tip is centered at position 1.5. If the cutting tip 1.5 is to be aligned with the cutting tip 1, the fixed base 62 needs to be moved 0.5 positions to the other side. At this time, the cutting tool of specification 3 will have a difference of 1 position on one side compared to the cutting tool of specification 2. When the cutting tool of specification 3 is pressed into the fixed base 62, one side of the cutting tool of specification 3 will press against the movable block 631. Block 631 moves inside guide groove 633. When movable block 631 moves, it drives second rack 636 to move a distance of 1 unit to one side. When second rack 636 moves, it drives first gear 634 to rotate. When first gear 634 rotates, it engages with second gear 637 to drive first rack 635 to move to the other side, thereby pushing fixed seat 62 to slide on connecting plate 61 to the other side. Since the tooth ratio of first gear 634 to first rack 635 is 1:2, the first gear... When gear 634 rotates one revolution, second gear 637 rotates half a revolution, causing second rack 636 to move to one side by a difference of 1 position. At this time, first rack 635 will push fixed seat 62 to the other side by a difference of 0.5 position, thereby making up for the 0.5 distance difference between the tool tip position of 1.5 and the tool tip position of 1. This allows the tool tip to still be aligned with the origin on one side of the workpiece after tool setting when changing to a larger tool, thus achieving automatic tool setting without having to perform a tool setting operation again when changing tools.

[0035] When changing to a smaller tool, rotate the positioning bolt 632 to position the bottom end of the movable block 631. Then, release the stop block 68 and remove the tool of specification 2. Install the tool of specification 1 with one side against the inside of the fixed seat 62. At this time, the tip position of the tool of specification 1 is 0.5, and the tip position of the tool of specification 2 is 1, with a difference of 0.5. Since the tip of the tool of specification 2 is aligned with the origin of the workpiece, when installing the tool of specification 1, the position difference between its tip and the origin of one side of the workpiece is 0.5. At this time, the difference between the tool of specification 2 and the tool of specification 1 is 1. After the tool of specification 1 is placed, release the positioning bolt 632. At this time, the movable block 631 will move to the other side by a difference of 1 under the action of the spring 638. The movable block 631 is positioned against one side of the tool with specification 1. When the second rack 636 moves to the other side by a difference of 1, the first gear 634 and the second gear 637 work together to move the fixed seat 62 on one side of the first rack 635 to one side by a position of 0.5. This indirectly causes the tool tip with specification 1 to automatically move to one side by a position of 0.5, making up for the difference of 0.5 between the tool tip with specification 1 and the origin point on one side of the workpiece. This achieves alignment, ensuring that the tool will automatically align with the origin point of the initial tool setting regardless of the tool size. This completes the automatic tool setting work when changing tools. Furthermore, the fixed seat 62 can be fixed by rotating the nut 66 on the screw 67, preventing it from moving during processing.

[0036] Reference Figure 1 and Figure 1As shown: Auxiliary component 9 includes a fixed disc 91, a cooling structure 92, a connecting disc 93, and a filter structure 94. The fixed disc 91 is fixed to the outside of the output shaft of the drive motor 8. The connecting disc 93 is movably mounted on one side of the fixed disc 91. One end of the connecting disc 93 is movably connected to one side inside the CNC machine tool 1. The other end of the connecting disc 93 is provided with the cooling structure 92. The top of the collection tank 13 is provided with the filter structure 94. The cooling structure 92 includes a belt pulley 921, a connecting belt 922, a cooling pipe 923, a water pump 924, and an output disc 925. The belt pulley 921 is installed at one end of the connecting disc 93. The water pump 924 is installed on one side of the coolant tank 7. The output disc 925 is installed on one side of the water pump 924. The belt pulley 921 is connected to the output disc 925 through the connecting belt 922. A cooling pipe 923 is installed on the outside of 4. The water pump 924 inlet is connected to the coolant tank 7. The filter structure 94 includes a connecting rod 941, a filter screen 942, a discharge trough 943, an eccentric wheel 944, a baffle plate 945, and a collection box 946. The connecting rod 941 is installed on one side of the output plate 925. An eccentric wheel 944 is fixed on the outside of one end of the connecting rod 941. The filter screen 942 is installed at the top of the collection trough 13. The discharge trough 943 is opened inside the CNC machine tool 1 on one side of the collection trough 13. One end of the filter screen 942 is hinged to both sides of the discharge trough 943. Baffle plates 945 are fixed on both sides of the top of the filter screen 942. The collection box 946 is installed inside the movable trough 14. Two sets of baffle plates 945 are provided. The two sets of baffle plates 945 are symmetrically distributed at the top of the filter screen 942.

[0037] Specifically, in this embodiment, when the drive motor 8 is started to rotate the workpiece for processing, the drive motor 8 drives the connecting disc 93 to rotate via the fixed disc 91. The connecting disc 93 drives the rotating belt disc 921 to rotate. When the belt disc 921 rotates, it drives the output disc 925 to rotate via the connecting belt 922. When the output disc 925 rotates, it drives the impeller inside the water pump 924 to rotate, generating suction to draw away the coolant from the coolant tank 7. The coolant is then sprayed out through the cooling pipe 923 to cool the workpiece. This achieves the goal of spraying coolant only during processing for cooling, thus avoiding... This can easily lead to waste of coolant, as processing debris and coolant will fall into the collection tank 13. At this time, the use of filter screen 942 can filter the debris in the coolant, allowing the coolant to be recycled and reused. When filter screen 942 is filtering, output disc 925 will also drive eccentric wheel 944 to rotate through connecting rod 941, thereby vibrating filter screen 942. Since filter screen 942 is tilted to one side, the debris will be vibrated into the collection box 946, completing the collection of debris, thus completing the filtration of coolant and the collection of debris.

[0038] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A CNC machine tool with an automatic tool setting structure, comprising a CNC machine tool (1) and a control panel (2); Its features are: Control panels (2) are installed on both sides of the front end of the CNC machine tool (1). A guide rail (3) is fixedly installed inside the CNC machine tool (1). A guide seat (4) is installed at the top of the guide rail (3). A lead screw (10) is fixedly installed at the rear end of the guide rail (3). The outer side of the lead screw (10) is sleeved on a lead sleeve (11). The top of the threaded sleeve (11) is fixed to the top of the rear end of the guide seat (4). A movable frame (5) is installed on the top of the guide seat (4). A tool setting assembly (6) is installed on the top of the movable frame (5). A drive motor (8) is installed inside one side of the CNC machine tool (1). A three-jaw chuck (12) is installed at the output end of the drive motor (8). A coolant tank (7) is installed inside one side of the CNC machine tool (1). An auxiliary component (9) is provided inside one side of the CNC machine tool (1). A collection groove (13) is opened inside the bottom end of the CNC machine tool (1). A movable slot (14) is provided on one side of the rear end of the CNC machine tool (1), and a water outlet (15) is installed on the rear end of one side of the CNC machine tool (1). The tool setting assembly (6) includes a connecting plate (61), a fixed seat (62), a tool setting structure (63), a rotating rod (64), a slide (65), a nut (66), a screw (67), and a stop block (68). The connecting plate (61) is installed on the top of the moving frame (5), and the bottom end of the connecting plate (61) is connected to the top end of the internal threaded sleeve of the moving frame (5). The fixed seat (62) is movably installed on the top end of the connecting plate (61), and the tool setting structure (63) is provided inside the fixed seat (62). The fixed seat (62) has a rotating rod (64) installed inside one end of one side. A stop block (68) is movably installed at one end of the rotating rod (64). The slide (65) is installed on the top of the connecting plate (61) at the rear end of the fixed seat (62). A screw (67) is fixed at the rear end of the fixed seat (62). A nut (66) is sleeved on the outside of the screw (67). The tool setting structure (63) includes a movable block (631), a positioning bolt (632), a guide groove (633), a first gear (634), a first rack (635), a second rack (636), a second gear (637), and a spring (638). The guide groove (634) is installed inside one end of the fixed seat (62). 33) Inside the guide groove (633) on one side of the fixed seat (62), a movable block (631) is installed inside. A positioning bolt (632) is installed at the top of one side of the fixed seat (62). Springs (638) are installed at both ends of one side of the movable block (631). A second rack (636) is fixed on one side of the movable block (631). A first rack (635) is fixed at one end of one side of the fixed seat (62). A first gear (634) is movably installed at the top of the connecting plate (61) at one end of the second rack (636). A second gear (637) is movably installed on one side of the first gear (634). The second rack (636) has several teeth on one side, and the second rack (636) meshes with the first gear (634). The auxiliary component (9) includes a fixed disk (91), a cooling structure (92), a connecting disk (93), and a filter structure (94). The fixed disk (91) is fixed to the outside of the output shaft of the drive motor (8). The connecting disk (93) is movably installed on one side of the fixed disk (91). One end of the connecting disk (93) is movably connected to one side of the CNC machine tool (1). The other end of the connecting disk (93) is provided with a cooling structure (92). The top of the collection tank (13) is provided with a filter structure (94).

2. A CNC machine tool with an automatic tool setting structure according to claim 1, characterized in that: The two ends of the spring (638) are fixed to one side inside the fixed base (62) and one side of the movable block (631), respectively, and the spring (638) and the movable block (631) form a telescopic structure.

3. A CNC machine tool with an automatic tool setting structure according to claim 1, characterized in that: One end of the rotating rod (64) is inserted into the interior of one side of the fixed seat (62), and the rotating rod (64) and the fixed seat (62) are threaded together.

4. A CNC machine tool with an automatic tool setting structure according to claim 1, characterized in that: The screw (67) has an external thread on its outer side and the nut (66) has an internal thread on its inner side, forming a threaded connection between the nut (66) and the screw (67).

5. A CNC machine tool with an automatic tool setting structure according to claim 1, characterized in that: The cooling structure (92) includes a belt pulley (921), a connecting belt (922), a cooling pipe (923), a water pump (924), and an output plate (925). The belt pulley (921) is installed at one end of the connecting plate (93), the water pump (924) is installed on one side of the coolant tank (7), and the output plate (925) is installed on one side of the water pump (924). The belt pulley (921) is connected to the output plate (925) through the connecting belt (922). The cooling pipe (923) is installed on the outside of the water pump (924), and the water inlet of the water pump (924) is connected to the coolant tank (7).

6. A CNC machine tool with an automatic tool setting structure according to claim 1, characterized in that: The filter structure (94) includes a connecting rod (941), a filter screen (942), a discharge trough (943), an eccentric wheel (944), a baffle plate (945), and a collection box (946). The connecting rod (941) is installed on one side of the output disc (925), and an eccentric wheel (944) is fixed to the outer side of one end of the connecting rod (941). The filter screen (942) is installed at the top of the collection trough (13). The discharge trough (943) is opened inside the CNC machine tool (1) on one side of the collection trough (13). One end of the filter screen (942) is hinged to both sides of the discharge trough (943). Baffle plates (945) are fixed to both sides of the top of the filter screen (942). The collection box (946) is installed inside the movable trough (14).

7. A CNC machine tool with an automatic tool setting structure according to claim 6, characterized in that: Two sets of the barrier plates (945) are provided, and the two sets of barrier plates (945) are symmetrically distributed at the top of the filter screen (942).

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