A drainage type CNC drilling machine capable of processing workpieces of different diameters

Abstract

The present invention discloses a drainage type CNC drilling machine capable of processing workpieces of different diameters, comprising a base, and an outer shell installed above the base; a cover body is installed in the middle of the upper part of the outer shell; a slide rail is installed inside the upper part of the outer shell, and a cover body is arranged above the slide rail; it also comprises: an electric push rod is slidably installed on the outer side of the slide rail, and a mounting frame is fixed at the bottom of the electric push rod; a motor is installed inside the mounting frame, and the bottom of the motor passes through the bottom of the mounting frame and is connected to the drill bit; a mounting sleeve is arranged on the inner wall of the left side of the outer shell. The drainage type CNC drilling machine capable of processing workpieces of different diameters is provided with a regulating plate a, and by pushing the regulating plate a, the convex block a can pull the connecting rope b, so that the connecting rope b drives the rotating shaft rod to rotate, so that it is convenient for four clamping plates to cooperate at the same time to clamp and fix workpieces of different diameters.

Description

Technical Field

[0001] The invention relates to the technical field of numerical control drilling machines, in particular to a drainage type numerical control drilling machine capable of processing workpieces with different diameters. Background Art

[0002] When using a CNC drilling machine, coolant is needed to protect the tool and workpiece. The cutting fluid can be used as a coolant to lower the temperature of the drilling machine, reduce tool wear, and prevent thermal expansion of the workpiece. A drainage type CNC drilling machine that can process workpieces of different diameters is.

[0003] The patent name disclosed with announcement number "CN114227334A" is "A CNC drilling machine with high precision in parts processing". 1-7 The CNC drilling machine with high precision in parts processing realizes the embracing clamping and limiting of the sphere through the clamping unit to improve the clamping effect. The sphere is blown by the cleaning component to make it rotate. The anti-slip pattern here can not only improve the clamping effect of the sphere, but also grind the surface of the sphere to prevent burrs after drilling and reduce labor intensity. Here, the drill bit is limited by adjusting the component to reduce the gap between the drill bit and the through hole, thereby The drill bit is better positioned above the sphere, which is convenient for processing different hole diameters, improves the drilling accuracy, and improves the practicality of use. However, in the CNC drilling machine with high processing accuracy of the component, the second fixed block moves toward the first fixed block, thereby realizing the embracing clamping and limiting of the sphere, improving the clamping effect. However, since the inner side walls of the first fixed block and the second fixed block are semicircular in shape, and the size of the semicircular shape is fixed, only one size of workpiece can be clamped and fixed, so it is not convenient to clamp and fix workpieces of different diameters, which makes the scope of application relatively limited and the practicality is low.

[0004] Therefore, we proposed a drainage type CNC drilling machine that can process workpieces of different diameters in order to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a drainage type CNC drilling machine that can process workpieces of different diameters, so as to solve the problem proposed by the above-mentioned background technology that in the CNC drilling machines with high parts processing accuracy on the current market, the second fixed block moves toward the direction of the first fixed block, thereby realizing the embracing clamping and limiting of the sphere and improving the clamping effect. However, since the inner walls of the first fixed block and the second fixed block are semicircular in shape and the size of the semicircular shape is fixed, only workpieces of one size can be clamped and fixed, so it is not convenient to clamp and fix workpieces of different diameters, which makes the scope of application relatively limited and the practicality is low.

[0006] To achieve the above object, the present invention provides the following technical solution: a drainage type CNC drilling machine capable of processing workpieces of different diameters, comprising a base, and an outer shell installed above the base;

[0007] A cover body is installed in the upper middle part of the outer shell;

[0008] A slide rail is installed inside the upper part of the outer shell, and a cover body is arranged above the slide rail;

[0009] Also includes:

[0010] An electric push rod is slidably mounted on the outer side of the slide rail, and a mounting frame is fixed on the bottom of the electric push rod;

[0011] A motor is installed inside the mounting frame, and the bottom of the motor passes through the bottom of the mounting frame and is connected to the drill bit;

[0012] The inner wall of the left side of the outer shell is provided with a mounting sleeve, and the right end of the mounting sleeve is connected to a rotating shaft rod with bearings at equal intervals with the center of the mounting sleeve as the center;

[0013] Wherein, a clamping rod is fixed to the outer side of the middle part of the rotating shaft, a torsion spring is nested and connected to the outer side of one end of the rotating shaft, and a connecting rope b is wound and connected to the outer side of the other end of the rotating shaft;

[0014] The other end of the clamping rod is connected to a clamping plate with an arc-shaped structure on one side through a movable shaft, and a torsion spring is nested and connected to the outer side of the movable shaft, and a rubber pad with an arc-shaped structure is fixed to one side of the clamping plate;

[0015] The other end of the connecting rope b is connected to the protrusion a;

[0016] The mounting sleeve is internally engaged and slidably connected with a regulating plate a, and the right side of the regulating plate a is bearing-connected with a regulating plate b made of a magnetic material, and the right side of the mounting sleeve is open;

[0017] The bottom surface of the outer shell is grooved to install a filter plate, and a drainage pipe is provided to penetrate the left side of the filter plate;

[0018] A spray head is installed on the right side of the mounting frame, and a connecting hose is installed on the right side above the spray head, and the connecting hose is connected to an external water supply mechanism.

[0019] Preferably, a slide groove a and a slide groove b are provided inside the left side surface of the outer shell, and a slide groove b is provided below the slide groove a, a magnet block is fixed to the inner left side surface of the slide groove b, and a buffer block is installed inside the upper inner wall of the slide groove b, and a return spring a is installed inside the slide groove b, and a magnet block is provided on the left side of the return spring a.

[0020] Through the arrangement of the above structure, the reset spring a can drive the connecting block to rise and fall.

[0021] Preferably, a connecting block with an inverted "T" shape structure is fixed to the left end of the mounting sleeve, and the connecting block is slidably connected to the inside of the slide groove b, and the bottom end of the connecting block is fixedly connected to the top end of the return spring a, and the connecting block and the magnet block have opposite poles.

[0022] The above-mentioned structure is used to prevent the connection block from being separated from the slide groove b.

[0023] Preferably, through holes are provided at equal intervals on the outer upper surface of the mounting sleeve, and guide grooves and positioning grooves are provided inside the surrounding surfaces of the mounting sleeve, and a row of positioning grooves are provided on the outside of the guide grooves, and a vertical rod is threadedly connected to the inside of the through hole, a horizontal plate is provided below the mounting sleeve, and the left end of the horizontal plate is fixedly mounted to the outer shell, and a pressure rod is fixed to the lower surface of the mounting sleeve.

[0024] Through the arrangement of the above structure, the installation sleeve can drive the pressure rod to move downwards together.

[0025] Preferably, a guide rod a is provided on the upper left side of the mounting frame, and the left end of the guide rod a is slidably engaged with the slide groove a, and the left end of the guide rod a is arranged in a "T" shape structure when viewed from above, and the right end of the guide rod a is internally engaged and slidably connected with a guide rod b, and the right end of the guide rod b is connected to the left end of the mounting frame.

[0026] Through the arrangement of the above structure, the left end of the guide rod a is arranged in a "T" shape when viewed from above, so that the guide rod a can slide stably in the slide groove a.

[0027] Preferably, bumps a are fixed on the outer sides of the regulating plate a, and a clamping groove is provided inside the upper bump a.

[0028] Through the arrangement of the above structure, the later-stage snap-in groove and the vertical rod are snap-connected, so as to facilitate fixing of the regulating plate a.

[0029] Preferably, four protrusions b are installed at equal intervals on the outer sides of the regulating plate b, and the protrusions b are slidably connected with the positioning grooves in the arc-shaped structure.

[0030] Through the arrangement of the above structure, the protrusion b is engaged and slidably connected with the positioning groove having an arc-shaped structure, so that the regulating plate b can be fixed.

[0031] Preferably, a bump a and a bump b are slidably engaged inside the guide groove, and a bump b is arranged on the right side of the bump a, and the height of the bump a is greater than the height of the bump b.

[0032] The above structure is arranged so that the protrusion a and the protrusion b can slide in the guide groove.

[0033] Preferably, a connecting rope a is installed at the bottom of the left end of the guide rod a, and a mounting sleeve is fixed to the bottom end of the connecting rope a.

[0034] By setting the above structure, when the guide rod a rises, the installation sleeve can be driven to rise together through the connecting rope a.

[0035] Preferably, a connecting groove is opened inside the bottom surface of the outer shell, and mounting blocks are installed on the outer sides of the left and right ends of the filter plate, and the outer sides of the mounting blocks are slidably connected with the connecting groove, and the bottom of the mounting block is connected to the return spring b installed in the connecting groove, and a pressure rod is arranged above the left end of the filter plate with an inverted trapezoidal structure.

[0036] Through the arrangement of the above structure, the pressure rod can shake the filter plate, so that the filter plate can be lifted and shaken stably.

[0037] Compared with the prior art, the beneficial effects of the present invention are as follows: the drainage type CNC drilling machine capable of processing workpieces of different diameters controls the rotation angle of the clamping rod by rotating the shaft rod, and then the clamping rod controls the placement position of the clamping plate, so that the four clamping plates cooperate with each other to clamp and fix workpieces of different diameters. The specific contents are as follows:

[0038] (1) An adjusting plate a is provided. By pushing the adjusting plate a, the convex block a can pull the connecting rope b, so that the connecting rope b drives the rotating shaft to rotate, and then the rotating shaft drives the clamping rod and the clamping plate to rotate, so that the four clamping plates can simultaneously cooperate to clamp and fix workpieces of different diameters, and the operation is convenient;

[0039] (2) A guide rod a, a guide rod b and a connecting rope a are installed. The connecting rope a is used to pull the installation sleeve, thereby separating the connecting block from the magnet block. As a result, the installation sleeve is reciprocated and lifted by the return spring a, so that the debris and water stains on the surface of the workpiece can be shaken off and the debris and water stains can be collected well.

[0040] (3) A pressure rod is installed, which can shake the filter plate, so that the filter plate can filter the water well, and the water is discharged through the drain pipe later. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of a partial main cross-sectional structure of the present invention;

[0042] Figure 2 It is a schematic diagram of the main cross-sectional structure of the outer shell and the installation sleeve of the present invention;

[0043] Figure 3 This is a schematic diagram of the main cross-sectional structure of the installation sleeve of the present invention;

[0044] Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle;

[0045] Figure 5 It is a schematic diagram of the main cross-sectional structure of the clamping plate of the present invention;

[0046] Figure 6 This is a schematic diagram of the side cross-sectional structure of the connection between the mounting sleeve and the clamping rod of the present invention;

[0047] Figure 7 This is a schematic diagram of the cross-sectional structure of the connection between the control plate b and the mounting sleeve of the present invention;

[0048] Figure 8 This is a schematic diagram of the main cross-sectional structure of the electric push rod of the present invention;

[0049] Fig. 9 For the present invention Figure 8 The enlarged structural diagram at B in the middle;

[0050] Fig.10 It is a schematic diagram of the top cross-sectional structure of the connection between the connecting block and the slide groove b of the present invention.

[0051] In the figure: 1, base; 2, outer shell; 201, slide a; 202, slide b; 203, magnet block; 204, buffer block; 205, reset spring a; 3, cover; 4, electric push rod; 5, slide rail; 6, mounting frame; 7, nozzle; 8, connecting hose; 9, mounting sleeve; 901, through hole; 902, vertical rod; 903, guide groove; 904, positioning groove; 10, guide rod a; 101, Guide rod b; 102, connecting rope a; 11, connecting block; 12, pressure rod; 13, horizontal plate; 14, filter plate; 141, mounting block; 15, drain pipe; 16, regulating plate a; 161, protrusion a; 162, snap-in groove; 17, regulating plate b; 171, protrusion b; 18, clamping rod; 19, clamping plate; 20, rotating shaft; 21, connecting rope b; 22, reset spring b; 23, connecting groove. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] See also Figure 1-10 , the present invention provides a technical solution:

[0054] Embodiment 1:

[0055] A drainage type CNC drilling machine capable of processing workpieces of different diameters comprises a base 1 and an outer shell 2 installed above the base 1. Figure 1 As shown in the figure, the entire drainage type CNC drilling machine is moved into the working area. After arriving at the working area, if the workpiece to be processed is a magnetic metal part, then as shown in the attached Figure 1-7As shown, the internal snap-fitting sliding connection of the mounting sleeve 9 is provided with a regulating plate a16, and the right side bearing of the regulating plate a16 is connected with a regulating plate b17 made of a magnetic material, and the right side of the mounting sleeve 9 is provided with an opening shape, and one end of the magnetic metal part is manually inserted into the mounting sleeve 9, and then at this time, one end of the magnetic metal part and the regulating plate b17 made of a magnet material are mutually attracted, and then the magnetic metal part is pushed, so that one end of the magnetic metal part pushes the regulating plate b17 and the regulating plate a16 to the left, and at this time, the protrusion a161 and the protrusion b171 slide in the guide groove 903, and the inner wall of the left side of the outer shell 2 is provided with a mounting sleeve 9. , and the right end of the mounting sleeve 9 is connected to a rotating shaft rod 20 with bearings spaced evenly apart with the center of the mounting sleeve 9 as the center, wherein a clamping rod 18 is fixed to the outside of the middle part of the rotating shaft rod 20, and a torsion spring is nested and connected to the outside of one end of the rotating shaft rod 20, and a connecting rope b21 is wound around the outside of the other end of the rotating shaft rod 20, and the other end of the connecting rope b21 is connected to the protrusion a161, so that the protrusion a161 pulls the connecting rope b21, and then the other end of the connecting rope b21 drives the rotating shaft rod 20 to rotate, and at this time, the torsion spring outside the rotating shaft rod 20 accumulates force, and at the same time, the rotating shaft rod 20 drives the clamping rod 18 and the clamping rod 18 to rotate. The plates 19 rotate together, and then the four clamping plates 19 cooperate with the rubber pad on one side to clamp and fix workpieces of different diameters. The outer sides of the regulating plate a16 are fixed with protrusions a161, and the outer sides of the regulating plate b17 are evenly spaced. The inner surface of the mounting sleeve 9 is provided with guide grooves 903 and positioning grooves 904, and a row of positioning grooves 904 is provided on the outer side of the guide groove 903, and the protrusions b171 are engaged and slidably connected with the positioning grooves 904 with an arc-shaped structure. The inner side of the guide groove 903 is engaged and slidably connected with the protrusions a161 and the protrusions b171, and the right side of the protrusion a161 is provided with A convex block b171 is arranged, and the height of the convex block a161 is greater than the height of the convex block b171. When the clamping plate 19 is stably clamped, the magnetic metal part and the regulating plate b17 are rotated, so that the convex block b171 on the outer side of the regulating plate b17 is rotated from the guide groove 903 to the positioning groove 904 for fixing. The other end of the clamping rod 18 is connected to the clamping plate 19 with an arc-shaped structure on one side through a movable shaft, and a torsion spring is nested and connected on the outer side of the movable shaft, and a rubber pad with an arc-shaped structure is fixed on one side of the clamping plate 19, so that the four clamping plates 19 can stably clamp and fix workpieces of different diameters.

[0056] An electric push rod 4 is slidably installed on the outer side of the slide rail 5, and a mounting frame 6 is fixed at the bottom of the electric push rod 4. A motor is installed inside the mounting frame 6, and the bottom of the motor passes through the bottom of the mounting frame 6 and is connected to the drill bit. Then the output end of the electric push rod 4 drives the mounting frame 6 to descend, so that the mounting frame 6 drives the drill bit at the bottom to descend, and at the same time the drill bit pushes the workpiece downward. A cross plate 13 is arranged below the mounting sleeve 9, and the left end of the cross plate 13 is fixedly installed with the outer shell 2, so that the workpiece and the mounting sleeve 9 move downward. At this time, the mounting sleeve 9 contacts the cross plate 13, and a connecting block 11 with an inverted "T" shape structure is fixed to the left end of the mounting sleeve 9, and the connecting block 11 is slidably connected with the inside of the slide groove b202, and the bottom end of the connecting block 11 is fixedly connected with the top of the reset spring a205, and the connecting block 11 and the magnet block 203 are opposite poles, and the connecting block 11 of the magnetic material is adsorbed by the magnet block 203;

[0057] Then the drill bit performs the drilling operation. After the drilling is completed, the drill bit rises. At this time, the guide rod a10 pulls the connecting rope a102, so that the connecting rope a102 is straightened, so that the connecting rope a102 pulls the installation sleeve 9. The connecting rope a102 is installed at the bottom of the left end of the guide rod a10, and the installation sleeve 9 is fixed to the bottom end of the connecting rope a102, so that the installation sleeve 9 drives the connecting block 11 to slide in the slide groove b202. The left side of the outer shell 2 is provided with a slide groove a201 and a slide groove b202, and the slide groove a201 is provided below the slide groove b202. A magnet is fixed to the left side of the inner part of the slide groove b202. Block 203, and a buffer block 204 is installed inside the inner wall of the upper end of the slide groove b202, and a return spring a205 is installed inside the slide groove b202, and a magnet block 203 is arranged on the left side of the return spring a205, so that the connection block 11 is separated from the magnet block 203, and the connection block 11 is automatically driven to slide in the slide groove b202 by the stored force of the return spring a205, and the rubber buffer block 204 is used for buffering, and the connection block 11 drives the installation sleeve 9 to rise and fall reciprocatingly, which makes it convenient for the installation sleeve 9 to drive the workpiece to rise and fall reciprocatingly, so that it is convenient to shake and drop the debris and water stains on the surface of the workpiece;

[0058] A nozzle 7 is installed on the right side of the mounting frame 6, and a connecting hose 8 is installed on the right side above the nozzle 7, and the connecting hose 8 is connected to the external water supply mechanism. At the same time, the nozzle 7 sprays coolant for cooling, and then the coolant and impurities fall on the filter plate 14, and are filtered by the filter plate 14, so that the impurities remain on the filter plate 14, and the coolant is discharged through the drain pipe 15 at a later time. The bottom surface of the outer shell 2 is grooved to install the filter plate 14, and the left side of the filter plate 14 is penetrated by the drain pipe 15;

[0059] A connecting groove 23 is provided inside the bottom surface of the outer shell 2, and mounting blocks 141 are installed on the outer sides of the left and right ends of the filter plate 14, and the outer sides of the mounting blocks 141 are slidably connected with the connecting groove 23, and the bottom of the mounting block 141 is connected to the return spring b22 installed in the connecting groove 23, and a pressure rod 12 is provided above the left end of the filter plate 14 in an inverted trapezoidal structure, as shown in the attached Figure 7-10 As shown, when the installation sleeve 9 descends, the pressure rod 12 is driven to descend, so that the pressure rod 12 presses the filter plate 14 downward. At this time, the installation block 141 on the outside of the filter plate 14 slides in the connecting groove 23 to squeeze the return spring b22, so that the return spring b22 accumulates force. When the pressure rod 12 is separated from the filter plate 14, the filter plate 14 automatically moves upward by the accumulated force of the return spring b22, so that the filter plate 14 is reciprocated and lifted, which is convenient for shaking the impurities on the surface of the filter plate 14 to avoid clogging of the filter plate 14. When the electric push rod 4 moves to the right, the guide rod b101 can be pulled. The upper left side of the mounting frame 6 is provided There is a guide rod a10, and the left end of the guide rod a10 is engaged and slidably connected with the slide groove a201, and the left end of the guide rod a10 is arranged in a "T" shape when viewed from above, and the right end of the guide rod a10 is internally engaged and slidably connected with the guide rod b101, and the right end of the guide rod b101 is connected to the left end of the mounting frame 6, so that one end of the guide rod b101 slides in the guide rod a10, and a cover body 3 is installed in the middle of the upper part of the outer shell 2, and a slide rail 5 is installed inside the upper part of the outer shell 2, and a cover body 3 is arranged above the slide rail 5, so that no matter where the electric push rod 4 moves to in the later stage, the connecting rope a102 can be pulled;

[0060] Embodiment 2:

[0061] When the workpiece to be processed is non-magnetic, Figure 1-7As shown, one end of the non-magnetic workpiece is manually inserted into the installation sleeve 9, and then the non-magnetic workpiece is pushed so that the one end of the non-magnetic workpiece pushes the regulating plate b17 and the regulating plate a16 to the left. Through holes 901 are evenly spaced on the outer upper surface of the installation sleeve 9, and guide grooves 903 are provided inside the surrounding surfaces of the installation sleeve 9, and the inside of the through hole 901 is threadedly connected with a vertical rod 902, and a pressure rod 12 is fixed to the lower surface of the installation sleeve 9. At this time, the protrusion a161 and the protrusion b171 slide in the guide groove 903, so that the protrusion a161 pulls the connecting rope b21, and then the other end of the connecting rope b21 drives the rotating The movable shaft 20 rotates, and at this time, the torsion spring on the outside of the rotating shaft 20 accumulates force, and at the same time, the rotating shaft 20 drives the clamping rod 18 and the clamping plate 19 to rotate together, so that the four clamping plates 19 cooperate with the rubber pad on one side to clamp and fix workpieces of different diameters. When the clamping plate 19 is clamped stably, the vertical rod 902 is inserted into the through hole 901 at the corresponding position, and a snap-in groove 162 is provided inside the upper protrusion a161, so that the bottom end of the vertical rod 902 is inserted into the snap-in groove 162, thereby fixing the regulating plate a16, so that the four clamping plates 19 can stably clamp and fix workpieces of different diameters, and the operation is convenient.

[0062] The working principle of this embodiment is as follows: when using the drainage type CNC drilling machine that can process workpieces of different diameters, first, when the workpiece to be processed is a magnetic metal part, then one end of the magnetic metal part and the regulating plate b17 made of a magnet material are mutually attracted, and then the magnetic metal part is pushed, and then the magnetic metal part and the regulating plate b17 are rotated, so that the four clamping plates 19 can stably clamp and fix the workpieces of different diameters;

[0063] When the workpiece to be processed is a non-magnetic workpiece, the non-magnetic workpiece is pushed so that one end of the non-magnetic workpiece pushes the regulating plate b17 and the regulating plate a16 to the left. At this time, the vertical rod 902 is inserted into the through hole 901 at the corresponding position, so that the bottom end of the vertical rod 902 is inserted into the clamping groove 162, thereby fixing the regulating plate a16, so that the four clamping plates 19 can stably clamp and fix workpieces of different diameters, and the operation is convenient;

[0064] The drill bit will push the workpiece downward and the drill bit will rise. At this time, the guide rod a10 will pull the connecting rope a102. At this time, the connection block 11 will automatically slide in the slide groove b202 through the stored force of the return spring a205, which will facilitate the installation of the sleeve 9 to drive the workpiece to reciprocate, lift and shake.

[0065] Therefore, the filter plate 14 is lifted and lowered back and forth, so as to shake the impurities on the surface of the filter plate 14, thereby completing a series of tasks.

[0066] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0067] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0068] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A drainage type CNC drilling machine capable of processing workpieces of different diameters, comprising a base (1) and an outer shell (2) mounted above the base (1); A cover body (3) is installed in the upper middle portion of the outer shell (2); A slide rail (5) is installed inside the upper part of the outer shell (2), and a cover body (3) is arranged above the slide rail (5); It is characterized in that Also includes: An electric push rod (4) is slidably mounted on the outer side of the slide rail (5), and a mounting frame (6) is fixed to the bottom of the electric push rod (4); A motor is installed inside the mounting frame (6), and the bottom of the motor passes through the bottom of the mounting frame (6) and is connected to the drill bit; The inner wall of the left side of the outer shell (2) is provided with a mounting sleeve (9), and the right end of the mounting sleeve (9) is connected to a rotating shaft (20) with bearings equidistantly spaced with the center of the mounting sleeve (9) as the center. A clamping rod (18) is fixed to the outside of the middle part of the rotating shaft (20), a torsion spring is nested and connected to the outside of one end of the rotating shaft (20), and a connecting rope b (21) is wound and connected to the outside of the other end of the rotating shaft (20); The other end of the clamping rod (18) is connected to a clamping plate (19) having an arc-shaped structure on one side through a movable shaft, a torsion spring is nested and connected to the outer side of the movable shaft, and a rubber pad having an arc-shaped structure is fixed to one side of the clamping plate (19); The other end of the connecting rope b (21) is connected to the protrusion a (161); The mounting sleeve (9) is internally engaged and slidably connected with a regulating plate a (16), and the right side surface of the regulating plate a (16) is bearing-connected with a regulating plate b (17) made of a magnetic material, and the right side surface of the mounting sleeve (9) is open; The bottom surface of the outer shell (2) is grooved to install a filter plate (14), and a drainage pipe (15) is provided to penetrate the left side surface of the filter plate (14); A spray head (7) is installed on the right side of the mounting frame (6), and a connecting hose (8) is installed on the right side above the spray head (7), and the connecting hose (8) is connected to an external water supply mechanism.

2. A drainage type CNC drilling machine capable of processing workpieces of different diameters according to claim 1, characterized in that: A slide groove a (201) and a slide groove b (202) are provided inside the left side surface of the outer shell (2), and a slide groove b (202) is provided below the slide groove a (201), a magnet block (203) is fixed to the left side surface of the interior of the slide groove b (202), and a buffer block (204) is installed inside the inner wall of the upper end of the slide groove b (202), and a return spring a (205) is installed inside the slide groove b (202), and a magnet block (203) is provided on the left side of the return spring a (205).

3. The drainage type CNC drilling machine capable of processing workpieces of different diameters according to claim 2, characterized in that: A connecting block (11) in an inverted "T"-shaped structure is fixed to the left end of the mounting sleeve (9), and the connecting block (11) is slidably connected to the inside of the slide groove b (202), and the bottom end of the connecting block (11) is fixedly connected to the top end of the return spring a (205), and the connecting block (11) and the magnet block (203) are opposite poles.

4. The drainage type CNC drilling machine capable of processing workpieces of different diameters according to claim 1, characterized in that: The outer upper surface of the mounting sleeve (9) is provided with through holes (901) at equal intervals, and the surrounding surfaces of the mounting sleeve (9) are provided with guide grooves (903) and positioning grooves (904), and a row of positioning grooves (904) is provided outside the guide grooves (903), and a vertical rod (902) is threadedly connected to the inside of the through hole (901), a horizontal plate (13) is provided below the mounting sleeve (9), and the left end of the horizontal plate (13) is fixedly mounted to the outer shell (2), and a pressure rod (12) is fixed to the lower surface of the mounting sleeve (9).

5. The drainage type CNC drilling machine capable of processing workpieces of different diameters according to claim 2, characterized in that: A guide rod a (10) is arranged on the upper left side of the mounting frame (6), and the left end of the guide rod a (10) is slidably engaged with the slide groove a (201), and the left end of the guide rod a (10) is arranged in a "T" shape when viewed from above, and the right end of the guide rod a (10) is slidably engaged with the guide rod b (101) inside, and the right end of the guide rod b (101) is connected to the left end of the mounting frame (6).

6. The drainage type CNC drilling machine capable of processing workpieces of different diameters according to claim 4, characterized in that: The outer sides of the regulating plate a (16) are all fixed with protrusions a (161), and a clamping groove (162) is provided inside the upper protrusion a (161).

7. A drainage type CNC drilling machine capable of processing workpieces of different diameters according to claim 6, characterized in that: Four protrusions b (171) are installed at equal intervals on the outer sides of the regulating plate b (17), and the protrusions b (171) are engaged and slidably connected with the positioning grooves (904) with an arc-shaped structure.

8. The drainage type CNC drilling machine capable of processing workpieces of different diameters according to claim 7, characterized in that: The guide groove (903) is internally engaged and slidably connected with a protrusion a (161) and a protrusion b (171), and a protrusion b (171) is arranged on the right side of the protrusion a (161), and the height of the protrusion a (161) is greater than the height of the protrusion b (171).

9. The drainage type CNC drilling machine capable of processing workpieces of different diameters according to claim 5, characterized in that: A connecting rope a (102) is installed at the bottom of the left end of the guide rod a (10), and a mounting sleeve (9) is fixed to the bottom end of the connecting rope a (102).

10. The drainage type CNC drilling machine capable of processing workpieces of different diameters according to claim 1, characterized in that: A connecting groove (23) is provided inside the bottom surface of the outer shell (2), and mounting blocks (141) are installed on the outer sides of the left and right ends of the filter plate (14), and the outer side of the mounting block (141) is slidably engaged with the connecting groove (23), and the bottom of the mounting block (141) is connected to a return spring b (22) installed in the connecting groove (23), and a pressure rod (12) is provided above the left end of the filter plate (14) in an inverted trapezoidal structure.

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