A CNC secondary hole machining preparation device

Abstract

The application discloses a CNC secondary tapping processing preparation device, which comprises a machine box, a rotating motor is installed on the surface of the machine box, a pressure bearing frame is fixedly installed between the inner surfaces of the machine box through a set of weighing sensors, a rotating frame driven by the rotating motor is rotatably connected to the inner wall of the pressure bearing frame, two symmetrical load boxes are installed on the surface of the rotating frame, silica gel ring pads are fixedly installed on the surface of the load boxes, negative pressure cavities are fixedly arranged in the interiors of the load boxes and correspond to the inner sides of the silica gel ring pads, a negative pressure generation module in communication with the negative pressure cavities is installed on the side surface of the machine box, a drilling platform is liftable installed on the surface of the machine box, and a guide shaft driven by a servo motor is rotatably connected between the inner surfaces of the drilling platform. The silica gel ring pads are arranged, so that the glass workpiece is effectively vibrated and buffered during the tapping of the glass workpiece, and the damage probability of the glass workpiece during tapping is reduced through the realization of the vibration buffering effect.

Description

Technical Field

[0001] This invention relates to the field of glass opening technology, and more specifically, to a CNC secondary opening processing apparatus. Background Technology

[0002] Glass is an amorphous inorganic non-metallic material, generally made from a variety of inorganic minerals as the main raw materials, with the addition of a small amount of auxiliary raw materials. Its main components are silicon dioxide and other oxides. It is widely used in buildings for wind insulation and light transmission. It is a mixture. During the glass processing, a hole-opening process is required.

[0003] In the prior art, patent document CN214136755U discloses a glass drilling and positioning device, including a worktable and a drill bit. A horizontal plate is connected to one side of the worktable via a column, and a cylinder is connected to one side of the horizontal plate. The movable end of the cylinder is connected to a movable plate, and one side of the movable plate is fixedly connected to the drill bit. The worktable is also provided with a through hole, which is used in conjunction with the drill bit. The movable plate is also provided with an extrusion assembly, which includes a slide groove and a threaded hole. The multiple threaded holes indicate that the width between the extrusion assemblies can be adjusted, thus enabling processing for different glass sizes and providing practicality to the device. The collection box allows for the collection of residual material after drilling, providing convenience for workers. However, the above device is not convenient for achieving simultaneous positive and negative pressure positioning of the glass workpiece when drilling glass, and it is not convenient for improving the yield rate of glass after cutting. Based on this, the present invention provides a CNC secondary drilling processing and preparation device to solve the technical problems mentioned in the background art. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, the present invention aims to provide a CNC secondary drilling processing device. By setting a silicone ring pad, the present invention effectively buffers the vibration of the glass workpiece during the drilling process, thereby reducing the probability of breakage during the drilling of the glass workpiece.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a CNC secondary drilling processing preparation device, the technical solution of which includes a chassis, a rotary motor mounted on the surface of the chassis, a pressure-bearing frame fixedly mounted between the inner surfaces of the chassis via a set of weighing sensors, a rotating frame rotatably connected to the inner wall of the pressure-bearing frame via a rotary motor, two symmetrically arranged carrier boxes mounted on the surface of the rotating frame, silicone ring pads fixedly mounted on the surface of the carrier boxes, a negative pressure cavity fixedly provided inside the carrier boxes and at a position corresponding to the inner side of the silicone ring pads, and a negative pressure generating module communicating with the negative pressure cavity mounted on the side of the chassis;

[0008] A drill platform is mounted on the surface of the chassis in a height-adjustable manner. A guide shaft driven by a servo motor is rotatably connected between the inner surfaces of the drill platform. A positive pressure positioning component that cooperates with the guide shaft is mounted on the surface of the drill platform. Two symmetrically arranged force-measuring drive components are mounted on the surface of the drill platform. A pressure plate is connected to the surface of the drill platform through the two force-measuring drive components. A drill cylinder is rotatably connected to the inner wall of the pressure plate. The inner wall of the drill cylinder is driven and slidably engaged with the guide shaft. A pressurization component is provided on the inner side of the drill cylinder.

[0009] As a preferred embodiment, a driven gear is fixedly installed on the circumferential side of the rotating frame, and a driving gear that is connected to the driven gear is fixedly installed on the output shaft end of the rotary motor. A waste collection drawer is slidably connected inside the machine housing and at a position corresponding to the bottom of the rotating frame. Protective plates are fixedly installed on both sides of the machine housing and at positions corresponding to both sides of the rotating frame.

[0010] As a preferred embodiment, the negative pressure generating module includes a negative pressure pump fixed to the side of the chassis, a negative pressure generating pipe fixed to the side of the rotating frame, and a microcontroller fixed to the surface of the drilling platform and electrically connected to the weighing sensor. The surfaces of the two negative pressure cavities are fixedly connected to the negative pressure generating pipe. The negative pressure port of the negative pressure pump is fixedly connected to the two negative pressure cavities respectively through a three-way flexible hose a. An electromagnetic valve is provided at the connection point between the three-way flexible hose a and the two negative pressure cavities. A pressure probe a is fixedly provided at the connection point between the three-way flexible hose a and the negative pressure pump. The ports of the electromagnetic valve and the pressure probe a are both electrically connected to the microcontroller.

[0011] As a preferred embodiment, a lifting frame is fixedly installed on the back of the chassis, and a vertically arranged screw lifting module is fixedly installed between the inner surfaces of the lifting frame. The peripheral side of the drilling platform is slidably connected to the lifting frame, and the peripheral side of the screw lifting module is drively connected to the drilling platform.

[0012] As a preferred embodiment, the output shaft end of the servo motor is fixedly equipped with an active bevel gear, the peripheral side of the guide shaft is fixedly equipped with a driven bevel gear that meshes with the active bevel gear, the top surface axis of the drill barrel is fixedly equipped with a driven sleeve, the inside of the driven sleeve is fixedly provided with a transmission guide groove that is open at both ends and slidably connected to the guide shaft, the cross-section of the guide shaft and the transmission guide groove are both regular polygons, and the inner wall of the transmission guide groove is fixedly equipped with a sealing ring that mates with the guide shaft.

[0013] As a preferred embodiment, the force measuring drive includes a vertically arranged electric push rod fixedly connected to the drilling platform. A pressure sensor a, which is electrically connected to a single-chip microcomputer, is fixedly installed on the end face of the electric push rod at a position relative to the pressure plate. A limiting guide rod, which is slidably connected to the pressure plate, is fixedly installed at the end of the electric push rod. The cross-section of the limiting guide rod is an inverted "T" shape.

[0014] As a preferred embodiment, the positive pressure positioning assembly includes a pressurizing pump a fixed to the surface of the drill rig, a positive pressure channel opened at the axis of the guide shaft, a pressure-fixing disc a rotatably connected to the bottom end of the guide shaft and rotatably connected to the positive pressure channel, and two symmetrically arranged and fixed pressure pipes inside the drill rig. The bottom ends of the two pressure pipes are fixedly connected to the pressure-fixing disc b. The port of the pressurizing pump a is fixedly connected to the three-way hose b. A pneumatic probe b electrically connected to a single-chip microcomputer is fixedly installed inside the three-way hose b. The top end of the positive pressure channel is rotatably connected to the three-way hose b. The top ends of the two pressure pipes are fixedly connected to the three-way hose b. The bottom ends of the pressure-fixing disc a and the pressure-fixing disc b are flush. The pressure-fixing disc a is located inside the drill barrel, and the two pressure-fixing discs b are respectively located on both sides of the drill barrel. Vibration measurement modules are fixedly installed on the outside of the two pressure pipes.

[0015] As a preferred embodiment, the vibration measurement module includes a support plate fixed to the outside of the pressure pipe. An elastic pressure rod is slidably connected to the inner wall of the support plate. A contact is fixedly installed at the bottom end of the elastic pressure rod. A compression spring is sleeved on the periphery of the elastic pressure rod at the position corresponding to the contact and the support plate. A pressure sensor b connected to the compression spring is fixedly installed on the bottom surface of the support plate. The port of the pressure sensor b is electrically connected to a single-chip microcomputer.

[0016] As a preferred embodiment, the pressurization assembly includes a pressurization pump b fixed to the surface of the drill platform and a pressure delivery ring pipe fixed to the surface of the drill platform. The port of the pressurization pump b is fixedly connected to the pressure delivery ring pipe. A pressure probe c electrically connected to a single-chip microcomputer is fixedly installed at the connection between the pressurization pump b and the pressure delivery ring pipe. A set of pressure-permeable holes arranged in a circular array are opened inside the drill barrel and at the position corresponding to the inner side of the pressure delivery ring pipe.

[0017] As a preferred embodiment, a liquid storage tank is fixedly installed on the end face of the drilling platform, a spray ring cavity is fixedly opened inside the guide shaft, a pump body is built inside the liquid storage tank, the liquid outlet port of the pump body is fixedly connected to the spray ring cavity, and a set of spray holes arranged in a circumferential array and vertically downward are opened inside the guide shaft, and the tail end of the spray holes is fixedly connected to the spray ring cavity.

[0018] (III) Beneficial Effects

[0019] Compared with the prior art, the present invention provides a CNC secondary drilling preparation device, which has the following beneficial effects.

[0020] 1. This invention, through the setting of silicone ring pads, effectively buffers vibrations in the glass workpiece during the hole-making process. By achieving the vibration buffering effect, the probability of breakage during hole-making is reduced. Through the negative pressure setting of the negative pressure cavity and the setting of pressure plate a and pressure plate b, the glass product can be synchronously positioned at multiple points with positive and negative pressure during secondary hole-making. By realizing the above positioning function and the buffering and vibration-damping function, the yield rate of glass products after hole-making is effectively improved.

[0021] 2. This invention uses pressure sensor b to detect the vibration amplitude of the glass workpiece during the opening process in real time. By monitoring the vibration amplitude of the glass workpiece during the opening process, the speed of the servo motor can be effectively controlled, and the vibration of the glass workpiece during the opening process can be maintained within a set safe range. By maintaining the above safe value, the probability of breakage of the glass workpiece during the opening process can be effectively reduced. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the chassis and protective plate used in the CNC secondary drilling processing preparation device of the present invention;

[0023] Figure 2 For the present invention Figure 1 A magnified schematic diagram of the partial structure at point A in the middle;

[0024] Figure 3 This is a schematic diagram of the structure of the rotating frame, carrier box, and silicone ring gasket of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the pressure plate b and the drill barrel of the present invention;

[0026] Figure 5 For the present invention Figure 4 A schematic diagram of the structure from an upward perspective;

[0027] Figure 6 For the present invention Figure 5 A schematic diagram of the cross-sectional structure;

[0028] Figure 7 For the present invention Figure 6 A magnified view of the structure at point B in the middle;

[0029] Figure 8 For the present invention Figure 6 A magnified schematic diagram of the local structure at point C;

[0030] Figure 9 This is a schematic diagram of the support plate and elastic pressure bar of the present invention.

[0031] In the diagram: 1. Chassis; 2. Rotary motor; 3. Load cell; 4. Pressure frame; 5. Rotating frame; 6. Carrier; 7. Silicone ring gasket; 8. Drill platform; 9. Servo motor; 10. Guide shaft; 11. Pressure plate; 12. Drill barrel; 13. Waste collection drawer; 14. Protective plate; 15. Negative pressure pump; 16. Negative pressure generating pipe; 17. Microcontroller; 18. Air pressure probe a; 19. Lifting frame; 20. Screw lifting mold 21. Electric push rod; 22. Pressure sensor a; 23. Limiting guide rod; 24. Pressurizing pump a; 25. Pressurizing disc a; 26. Connecting pipe; 27. Pressurizing disc b; 28. Air pressure probe b; 29. ​​Support plate; 30. Elastic pressure rod; 31. Contact; 32. Compression spring; 33. Pressure sensor b; 34. Pressure delivery ring pipe; 35. Pressurizing pump b; 36. Liquid storage tank; 37. Spray ring cavity. Detailed Implementation

[0032] The present invention will be further described and illustrated below with reference to specific embodiments and the accompanying drawings:

[0033] Please see Figure 1-9 The present invention is a CNC secondary hole-opening processing preparation device. The technical solution adopted is as follows: it includes a machine box 1, a rotary motor 2 is installed on the surface of the machine box 1, and a pressure frame 4 is fixedly installed between the inner surfaces of the machine box 1 through a set of weighing sensors 3. The inner wall of the pressure frame 4 is rotatably connected to a rotating frame 5 driven by the rotary motor 2.

[0034] A driven gear is fixedly installed on the circumferential side of the rotating frame 5, and a driving gear that is connected to the driven gear is fixedly installed on the output shaft end of the rotary motor 2.

[0035] By setting up a meshing transmission between the driving gear and the driven gear, the impact on the accuracy of the weighing sensor 3 during the operation of the rotary motor 2 is effectively reduced.

[0036] Two symmetrically arranged carrier boxes 6 are installed on the surface of the rotating frame 5. Inside the housing 1 and at the position corresponding to the bottom of the rotating frame 5, a waste collection drawer 13 is slidably connected. By setting up the waste collection drawer 13, the glass residue generated during the drilling process can be effectively collected.

[0037] Protective plates 14 are fixedly installed on both sides of the chassis 1 and at positions corresponding to both sides of the rotating bracket 5;

[0038] By setting the guard plate 14, the rate of glass shard splashing is effectively reduced;

[0039] A silicone ring pad 7 is fixedly installed on the surface of the carrier 6. A negative pressure cavity is fixedly provided inside the carrier 6 and at the position corresponding to the inner side of the silicone ring pad 7. A negative pressure generating module communicating with the negative pressure cavity is installed on the side of the chassis 1.

[0040] The silicone ring pad 7 is made of soft silicone. By setting the silicone ring pad 7, the glass workpiece can be effectively vibration-buffered during the opening process. The vibration-buffering effect reduces the probability of breakage when the glass workpiece is opened.

[0041] The negative pressure generating module includes a negative pressure pump 15 fixed to the side of the chassis 1, a negative pressure generating pipe 16 fixed to the side of the rotating frame 5, and a single-chip microcomputer 17 fixed to the surface of the drill rig 8 and electrically connected to the weighing sensor 3.

[0042] The surfaces of the two negative pressure cavities are fixedly connected to the negative pressure generating tube 16. The negative pressure port of the negative pressure pump 15 is fixedly connected to the two negative pressure cavities respectively through a three-way flexible hose a. A solenoid valve is installed at the connection point between the three-way flexible hose a and the two negative pressure cavities. A pressure probe a18 is fixedly installed at the connection point between the three-way flexible hose a and the negative pressure pump 15. The ports of the solenoid valve and the pressure probe a18 are electrically connected to the microcontroller 17.

[0043] By setting the solenoid valve, the negative pressure in the two negative pressure cavities is controlled when the negative pressure pump 15 is working. During normal operation, the upper negative pressure cavity should generate negative pressure. By setting the air pressure probe a18, the negative pressure inside the negative pressure cavity can be monitored in real time. By generating the negative pressure inside the negative pressure cavity, the glass workpiece to be opened can be effectively positioned by negative pressure.

[0044] A drill rig 8 is mounted on the surface of the chassis 1 in a height-adjustable manner;

[0045] A lifting frame 19 is fixedly installed on the back of the chassis 1. A vertically arranged screw lifting module 20 is fixedly installed between the inner surfaces of the lifting frame 19. The peripheral side of the drill table 8 is slidably connected to the lifting frame 19, and the peripheral side of the screw lifting module 20 is connected to the drill table 8 in a transmission manner.

[0046] A guide shaft 10 driven by a servo motor 9 is rotatably connected between the inner surfaces of the drill rig 8.

[0047] The output shaft end of the servo motor 9 is fixedly equipped with an active bevel gear, and the peripheral side of the guide shaft 10 is fixedly equipped with a driven bevel gear that meshes with the active bevel gear.

[0048] The surface of the drill rig 8 is equipped with a positive pressure positioning assembly that mates with the guide shaft 10;

[0049] The positive pressure positioning assembly includes a pressurizing pump a24 fixed to the surface of the drill rig 8, a positive pressure flow channel opened at the axis of the guide shaft 10, a pressure fixing plate a25 rotatably connected to the bottom end of the guide shaft 10 and rotatably connected to the positive pressure flow channel, and two symmetrically arranged pressure pipes 26 fixed inside the drill rig 8. The bottom ends of the two pressure pipes 26 are fixedly connected to the pressure fixing plate b27.

[0050] The pressure plate a25 is located inside the drill barrel 12, and the two pressure plates b27 are located on both sides of the drill barrel 12 respectively.

[0051] During the drilling operation, the pressure plate a25 and pressure plate b27 press and position the glass workpiece from above. When the pressure plate a25 and pressure plate b27 are working, a certain positive pressure is generated inside the pressure plate a25 and pressure plate b27, which then confines the glass workpiece at multiple points between the silicone ring pad 7, the pressure plate a25 and pressure plate b27.

[0052] The port of the pressurizing pump a24 is fixedly connected to a three-way hose b. Inside the three-way hose b, a pressure probe b28 electrically connected to the microcontroller 17 is fixedly installed. The top of the positive pressure channel is rotatably connected to the three-way hose b. The tops of the two pressure pipes 26 are fixedly connected to the three-way hose b. The bottoms of the pressure plate a25 and the pressure plate b27 are flush. Vibration measurement modules are fixedly installed on the outside of the two pressure pipes 26.

[0053] By setting the air pressure probe b28, the positive pressure inside the pressure plate a25 and pressure plate b27 can be effectively monitored;

[0054] The vibration measurement module includes a support plate 29 fixed to the outside of the pressure pipe 26. An elastic pressure rod 30 is slidably connected to the inner wall of the support plate 29. A contact 31 is fixedly installed at the bottom end of the elastic pressure rod 30. An anti-compression spring 32 is sleeved on the periphery of the elastic pressure rod 30 and at the position between the contact 31 and the support plate 29. A pressure sensor b33 connected to the anti-compression spring 32 is fixedly installed on the bottom surface of the support plate 29. The port of the pressure sensor b33 is electrically connected to the microcontroller 17.

[0055] By setting the pressure sensor b33, the vibration amplitude of the glass workpiece when it is opened can be detected in real time. By monitoring the vibration amplitude of the glass workpiece when it is opened, the speed of the servo motor 9 can be effectively controlled, and the vibration of the glass workpiece when it is opened can be kept within the set safe range. By maintaining the above safe value, the probability of breakage of the glass workpiece when it is opened can be effectively reduced.

[0056] Two symmetrically arranged force-measuring drive components are installed on the surface of the drill platform 8, and a pressure plate 11 is connected to the surface of the drill platform 8 through the two force-measuring drive components.

[0057] The force-measuring drive includes an electric push rod 21 that is vertically set and fixedly connected to the drill rig 8. A pressure sensor a22 that is electrically connected to the microcontroller 17 is fixedly installed on the end face of the electric push rod 21 at a position relative to the pressure plate 11. A limiting guide rod 23 that is slidably connected to the pressure plate 11 is fixedly installed at the end of the electric push rod 21. The cross-section of the limiting guide rod 23 is an inverted "T" shape.

[0058] By setting pressure sensor a22, the pressure of electric push rod 21 on pressure plate 11 can be monitored in real time;

[0059] The inner wall of the pressure plate 11 is rotatably connected to the drill barrel 12, and the inner wall of the drill barrel 12 is connected to the guide shaft 10 in a transmission and sliding fit.

[0060] A driven sleeve is fixedly installed at the axial position of the top surface of the drill barrel 12. A transmission guide groove with openings at both ends and sliding connection with the guide shaft 10 is fixedly opened inside the driven sleeve. The cross-sections of the guide shaft 10 and the transmission guide groove are both regular polygons. A sealing ring that mates with the guide shaft 10 is fixedly installed on the inner wall of the transmission guide groove.

[0061] By setting the guide shaft 10 and the transmission guide groove with a regular polygonal cross-section, the guide shaft 10 can continuously and effectively transmit power to the drill barrel 12 during the up and down movement of the drill barrel 12.

[0062] A pressurization assembly is provided on the inner side of the drill barrel 12.

[0063] The pressurization assembly includes a pressurization pump b35 fixed to the surface of the drill rig 8 and a pressure delivery ring pipe 34 fixed to the surface of the drill rig 8. The port of the pressurization pump b35 is fixedly connected to the pressure delivery ring pipe 34. A pressure probe c38 electrically connected to the microcontroller 17 is fixedly installed at the connection between the pressurization pump b35 and the pressure delivery ring pipe 34. A set of pressure-penetrating holes distributed in a circular array are opened inside the drill barrel 12 and at the position corresponding to the inner side of the pressure delivery ring pipe 34.

[0064] When drilling is performed, the pressurizing component injects positive pressure into the inside of the drill barrel 12, and the positive pressure inside the drill barrel 12 is the same as the pressure inside the pressure plate a25 and pressure plate b27. By setting the pressure to be the same, the glass workpiece to be cut is effectively held and positioned by positive pressure.

[0065] A liquid storage tank 36 is fixedly installed on the end face of the drilling platform 8. A spray ring cavity 37 is fixedly opened inside the guide shaft 10. A pump body is built inside the liquid storage tank 36. The outlet port of the pump body is fixedly connected to the spray ring cavity 37. A set of spray holes arranged in a circular array and vertically downward are opened inside the guide shaft 10. The tail end of the spray hole is fixedly connected to the spray ring cavity 37.

[0066] During the drilling operation, the pump continuously delivers spray liquid into the interior of the drill barrel 12, thereby effectively cooling and removing dust from the drill barrel 12 and the glass workpiece while the drill bit is drilling.

[0067] The working principle of this invention is as follows: This device is mainly suitable for drilling operations on glass workpieces. During the drilling operation, the glass workpiece to be drilled is placed on the surface of the silicone ring pad 7. Negative pressure is generated inside the negative pressure cavity, thereby effectively positioning the glass workpiece under negative pressure. After the glass workpiece is initially positioned under negative pressure, the pressure fixing discs a25 and b27 hold and position the glass workpiece from above. When the pressure fixing discs a25 and b27 are working, a certain positive pressure is generated inside the pressure fixing discs a25 and b27, thereby confining the glass workpiece at multiple points between the silicone ring pad 7, the pressure fixing discs a25 and b27. After the glass workpieces are positioned, the two force-measuring drive units drive the drill cylinder 12 to contact the glass workpieces at a set pressure. Then, positive pressure is filled into the drill cylinder 12, and the positive pressure inside the drill cylinder 12 is the same as the pressure inside the pressure plate a25 and pressure plate b27. By setting the pressure to be the same, the glass workpiece to be cut is effectively positioned by positive pressure. After the positive pressure is filled, the servo motor 9 outputs a rotation speed, the spray hole sprays out spray liquid, and the force-measuring drive unit applies pressure to the drill cylinder 12 at a constant pressure. After the hole is opened, the cut glass falls into the negative pressure cavity. After the broken glass inside the negative pressure cavity reaches a certain level, the rotating frame 5 rotates 180° and then discharges the glass fragments to the waste collection drawer 13.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A CNC secondary hole machining preparation device, comprising a machine box (1), a rotary motor (2) is mounted on the surface of the machine box (1), characterized in that: The inner surface of the cabinet (1) is fixedly installed with a set of load sensors (3) through a pressure bearing frame (4), the inner wall of the pressure bearing frame (4) is rotationally connected with a rotating frame (5) driven by a rotary motor (2), the surface of the rotating frame (5) is fixedly installed with two symmetrically arranged box carriers (6), the surface of the box carrier (6) is fixedly installed with a silica gel ring pad (7), the inside of the box carrier (6) and the position corresponding to the inside of the silica gel ring pad (7) are fixedly provided with a negative pressure cavity, and the side surface of the cabinet (1) is installed with a negative pressure generation module in communication with the negative pressure cavity. The surface of the cabinet (1) is fixedly installed with a drilling platform (8), the inner surface of the drilling platform (8) is rotationally connected with a guide shaft (10) driven by a servo motor (9), the surface of the drilling platform (8) is fixedly installed with a positive pressure positioning assembly matched with the guide shaft (10), the surface of the drilling platform (8) is fixedly installed with two symmetrically arranged force measuring driving elements, the surface of the drilling platform (8) is connected with a pressing plate (11) through the two force measuring driving elements, the inner wall of the pressing plate (11) is rotationally connected with a drill cylinder (12), the inner wall of the drill cylinder (12) is drivingly connected with the guide shaft (10) and is slidingly matched with the guide shaft (10), and the inside of the drill cylinder (12) is provided with a pressure charging assembly. The positive pressure positioning assembly comprises a pressure charging pump a (24) fixed to the surface of the drilling platform (8), a positive pressure flow channel opened at the axis position of the guide shaft (10), a pressure positioning rubber disc a (25) rotationally connected to the bottom end of the guide shaft (10) and rotationally connected with the positive pressure flow channel, and two symmetrically arranged and fixedly connected pressure connecting pipes (26) in the inside of the drilling platform (8), the bottom end of each of the two pressure connecting pipes (26) is fixedly connected with a pressure positioning rubber disc b (27), the port of the pressure charging pump a (24) is fixedly connected with a three-way hose b, the inside of the three-way hose b is fixedly installed with a gas pressure probe b (28) electrically connected with a single-chip microcomputer (17), the top end of the positive pressure flow channel is rotationally connected with the three-way hose b, the top end of each of the two pressure connecting pipes (26) is fixedly connected with the three-way hose b, the bottom end of the pressure positioning rubber disc a (25) is flush with the bottom end of the pressure positioning rubber disc b (27), the pressure positioning rubber disc a (25) is arranged in the inside of the drill cylinder (12), the two pressure positioning rubber discs b (27) are respectively arranged on the two sides of the drill cylinder (12), and the outside of each of the two pressure connecting pipes (26) is fixedly installed with a vibration measurement module.

2. The CNC secondary machining device according to claim 1, characterized in that: The peripheral surface of the rotating frame (5) is fixedly installed with a driven gear, the output shaft end of the rotary motor (2) is fixedly installed with a driving gear drivingly connected with the driven gear, the inside of the cabinet (1) and the position corresponding to the lower side of the rotating frame (5) are slidingly connected with a waste drawer (13), and the two side surfaces of the cabinet (1) and the positions corresponding to the two sides of the rotating frame (5) are fixedly installed with a guard plate (14).

3. The CNC secondary machining device according to claim 1, characterized in that: The negative pressure generating module comprises a negative pressure pump (15) fixed to the side of the cabinet (1), a negative pressure generating pipe (16) fixed to the side of the rotating frame (5) and a single-chip microcomputer (17) fixed to the surface of the drilling platform (8) and electrically connected with the weighing sensor (3).

4. The CNC secondary machining device according to claim 2, characterized in that: The back surface of the cabinet (1) is fixedly installed with a lifting frame (19), the inner surfaces of the lifting frame (19) are fixedly installed with a vertically arranged screw rod lifting module (20), the peripheral surface of the drilling platform (8) is in sliding connection with the lifting frame (19), and the peripheral surface of the screw rod lifting module (20) is in transmission connection with the drilling platform (8).

5. The CNC secondary machining preparation device according to claim 1, characterized in that: The output shaft end of the servo motor (9) is fixedly installed with a driving bevel gear, the peripheral surface of the driven shaft rod (10) is fixedly installed with a driven bevel gear meshing with the driving bevel gear, the top surface axis position of the drill cylinder (12) is fixedly installed with a driven sleeve, the inside of the driven sleeve is fixedly provided with a transmission guide groove with two open ends and in sliding connection with the driven shaft rod (10), the cross sections of the driven shaft rod (10) and the transmission guide groove are both regular polygons, and the inner wall of the transmission guide groove is fixedly installed with a sealing ring matched with the driven shaft rod (10).

6. The CNC secondary machining preparation device according to claim 1, characterized in that: The force measuring driving part comprises a vertically arranged electric push rod (21) fixedly connected with the drilling platform (8), the end surface of the electric push rod (21) and in position opposite to the pressing plate (11) is fixedly installed with a pressure sensor a (22) electrically connected with the single-chip microcomputer (17), the end portion of the electric push rod (21) is fixedly installed with a limiting guide rod (23) in sliding connection with the pressing plate (11), and the cross section of the limiting guide rod (23) is inverted "T" shaped.

7. The CNC secondary machining preparation device according to claim 1, characterized in that: The vibration measuring module comprises a support plate (29) fixed to the outside of the pressure connecting pipe (26), the inner wall of the support plate (29) is in sliding connection with an elastic pressing rod (30), the bottom end of the elastic pressing rod (30) is fixedly installed with a contact head (31), the peripheral surface of the elastic pressing rod (30) and in position corresponding to the contact head (31) is sleeved with a pressure resisting spring (32) between the support plate (29), the bottom surface of the support plate (29) is fixedly installed with a pressure sensor b (33) connected with the pressure resisting spring (32), and the port of the pressure sensor b (33) is electrically connected with the single-chip microcomputer (17).

8. The CNC secondary machining preparation device according to claim 1, characterized in that: The pressurizing assembly comprises a pressurizing pump b (35) fixed to the surface of the drilling platform (8) and a pressure feeding ring pipe (34) fixed to the surface of the drilling platform (8), the port of the pressurizing pump b (35) is fixedly communicated with the pressure feeding ring pipe (34), the communication part of the pressurizing pump b (35) and the pressure feeding ring pipe (34) is fixedly provided with an air pressure probe c (38) electrically connected with the single-chip microcomputer (17), and a group of pressure transmission holes in circumferential array are arranged at the position corresponding to the inner side of the pressure feeding ring pipe (34) in the inside of the drilling cylinder (12).

9. The CNC secondary machining preparation device according to claim 1, characterized in that: The end surface of the drilling platform (8) is fixedly provided with a liquid storage tank (36), the inside of the guide shaft (10) is fixedly provided with a spraying ring cavity (37), the inside of the liquid storage tank (36) is built-in with a pump body, the liquid outlet port of the pump body is fixedly communicated with the spraying ring cavity (37), and the inside of the guide shaft (10) is provided with a group of spraying holes in circumferential array and vertically downward, the tail end of the spraying hole is fixedly communicated with the spraying ring cavity (37).

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