CN216729658U

CN216729658U - Deep hole drilling rod protection system

Info

Publication number: CN216729658U
Application number: CN202123028471.8U
Authority: CN
Inventors: 张增成; 王维昱; 汪开胜; 何振华
Original assignee: Anqing CSSC Diesel Engine Co Ltd
Current assignee: Anqing CSSC Diesel Engine Co Ltd
Priority date: 2021-12-03
Filing date: 2021-12-03
Publication date: 2022-06-14
Anticipated expiration: 2031-12-03

Abstract

The utility model discloses a deep hole drilling rod protection system, the system includes CNC numerical control center, the lead screw, drive lead screw pivoted feeds the motor, slide with lead screw swing joint, establish the main shaft in the slide, drive main shaft pivoted spindle motor, connect drilling rod and the drill bit at the main shaft front end, the system still includes torque detector and coolant liquid case, torque detector establishes on the main shaft and is used for detecting the torque of drilling rod, the delivery pipe of coolant liquid case is connected with the rear end of main shaft, the wet return connection of coolant liquid case is between drill bit and workpiece end face, and all be equipped with pressure sensor on delivery pipe and wet return. The utility model discloses a drilling rod operating condition is controlled in the change of monitoring coolant liquid inlet and outlet pressure, drilling rod torque, feeding moment of torsion, and the drilling process is continuous stable, and hole positional deviation is little, can realize nimble regulation according to actual conditions control drilling process, effectively reduces the blade loss, realizes that the drilling process is unmanned, has improved efficiency, practices thrift manpower and materials.

Description

Deep hole drilling rod protection system

Technical Field

The utility model relates to a deep hole processing technology field, concretely relates to deep hole drilling rod protection system.

Background

The deep hole drilling rod is one of the indispensable instrument of deep hole processing, and the deep hole drilling rod need take away the heat and the iron fillings that produce among the drilling process through the coolant liquid when the drilling, protects the drilling rod, prevents that the drilling rod from damaging. At present, a numerical control deep hole drilling machine drill rod controls starting and stopping of equipment in a mode of detecting inlet pressure of cooling liquid, and therefore the purpose of protecting the drill rod is achieved. The detection pressure of the control mode is fixed and cannot be flexibly adjusted, so that under the condition of working condition changes such as end face sealing leakage and the like, smooth chip removal or poor heat dissipation can be caused to damage a drill rod and the like.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a deep hole drilling rod protection system, it is through monitoring coolant liquid import and export pressure, drilling rod torque change control drilling rod operating condition.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

a deep hole drilling rod protection system comprises a CNC (computer numerical control) center, a screw rod, a feeding motor for driving the screw rod to rotate, a sliding seat movably connected with the screw rod, a main shaft arranged in the sliding seat, a main shaft motor for driving the main shaft to rotate, a drilling rod and a drilling bit connected to the front end of the main shaft, a torque detector and a cooling liquid tank, wherein the torque detector is arranged on the main shaft and used for detecting the torque of the drilling rod;

the signal output end of the torque detector is connected with the torque signal input end of a CNC (computerized numerical control) center, the signal output end of the pressure sensor is connected with the pressure signal input end of the CNC center, and the signal output end of the CNC center is connected with the control end of the spindle motor.

The further improvement is that the front end of the main shaft is provided with a chuck, and the main shaft is in transmission connection with the drill rod through the chuck.

The further improvement is that a water supply pipe of the cooling liquid tank is connected with the rear end of the main shaft through a rotary seal.

The further improvement is that a water return pipe of the cooling liquid tank is connected between the drill bit and the end face of the workpiece in a sealing mode through the end face.

In a further improvement, the feeding motor is a servo motor, and the CNC center is further configured to obtain real-time current of the servo motor.

The beneficial effects of the utility model reside in that: the working state of the drill rod is controlled by monitoring the changes of the inlet and outlet pressure of the cooling liquid, the torque of the drill rod and the feeding torque, the drilling process is continuous and stable, the hole position deviation is small, the drilling process can be controlled according to actual conditions, flexible adjustment is realized, the loss of the blade is effectively reduced, the drilling process is unmanned, the efficiency is improved, and manpower and material resources are saved.

Drawings

FIG. 1 is a schematic view of a deep hole drill rod protection system;

in the figure: 1. CNC center; 2. a screw rod; 3. a feed motor; 4. a slide base; 5. a main shaft; 6. A spindle motor; 7. a drill stem; 8. a drill bit; 9. a torque detector; 10. a coolant tank; 11. a water supply pipe; 12. a water return pipe; 13. a pressure sensor; 14. a chuck; 15. rotating and sealing; 16. and (5) end face sealing.

Detailed Description

The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.

As shown in fig. 1, a deep-hole drill rod protection system comprises a CNC numerical control center 1, a screw rod 2, a feed motor 3 for driving the screw rod 2 to rotate, a slide seat 4 movably connected with the screw rod 2, a spindle 5 arranged in the slide seat 4, a spindle motor 6 for driving the spindle 5 to rotate, a drill rod 7 and a drill bit 8 connected to the front end of the spindle 5, a torque detector 9 and a coolant tank 10, wherein the torque detector 9 is arranged on the spindle 5 and is used for detecting the torque of the drill rod 7, a water supply pipe 11 of the coolant tank 10 is connected with the rear end of the spindle 5, a water return pipe 12 of the coolant tank 10 is connected between the drill bit 8 and the end surface of a workpiece, and pressure sensors 13 are arranged on the water supply pipe 11 and the water return pipe 12;

the signal output end of the torque detector 9 is connected with the torque signal input end of the CNC numerical control center 1, the signal output end of the pressure sensor 13 is connected with the pressure signal input end of the CNC numerical control center 1, and the signal output end of the CNC numerical control center 1 is connected with the control end of the spindle motor 6.

In the utility model, the front end of the main shaft 5 is provided with the chuck 14, and the main shaft 5 is in transmission connection with the drill rod 7 through the chuck 14.

In the present invention, the water supply pipe 11 of the coolant tank 10 is connected to the rear end of the main shaft 5 through the rotary seal 15.

In the utility model, the return pipe 12 of the cooling liquid tank 10 is connected between the drill bit 8 and the end face of the workpiece through the end face seal 16.

The utility model discloses in, feed motor 3 and adopt servo motor, and CNC numerical control center 1 further is configured to acquire servo motor real-time current.

The utility model discloses it drives lead screw 2 and rotates to feed motor 3 at the during operation to drive slide 4 and feed or retreat, spindle motor 6 drives main shaft 5 and rotates, and then drives drilling rod 7 and drill bit 8 and rotates, realizes drilling.

The pressure control and the torque control can be realized during the work, and the concrete steps are as follows:

(1) and (3) pressure control: the cooling liquid in the cooling liquid tank 10 enters the drill rod 7 through the water supply pipe 11 and the rotary seal 15 to reach the position of the drill bit 8, takes away heat and scrap iron generated in the drilling process, and is discharged through the water return pipe 12. The pressure sensors 13 on the water supply pipe 11 and the water return pipe 12 are used for detecting the inlet pressure and the outlet pressure, and the CNC numerical control center 1 is used for contrast control, so that the drill rod 7 is effectively protected.

(2) And (3) torque control: the torque detector 9 is used for monitoring the torque change of the drill rod 7 in real time in the drilling process, so that the feeding speed can be adjusted to realize constant torque control. Meanwhile, the real-time current of the feeding servo motor can be detected, the feeding or retreating is judged through the CNC center 1, and the equipment is controlled in time under the abnormal conditions of blade damage and the like, so that the drill rod 7 is effectively protected.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. A deep hole drill rod protection system comprises a CNC (computerized numerical control) center (1), a screw rod (2), a feeding motor (3) for driving the screw rod (2) to rotate, a sliding seat (4) movably connected with the screw rod (2), a main shaft (5) arranged in the sliding seat (4), a main shaft motor (6) for driving the main shaft (5) to rotate, a drill rod (7) and a drill bit (8) connected to the front end of the main shaft (5), characterized in that the system further comprises a torque detector (9) and a coolant tank (10), the torque detector (9) is arranged on the main shaft (5) and is used for detecting the torque of the drill rod (7), a water supply pipe (11) of the cooling liquid tank (10) is connected with the rear end of the main shaft (5), a water return pipe (12) of the cooling liquid tank (10) is connected between the drill bit (8) and the end face of the workpiece, pressure sensors (13) are arranged on the water supply pipe (11) and the water return pipe (12);

the torque detection device is characterized in that a signal output end of the torque detector (9) is connected with a torque signal input end of the CNC numerical control center (1), a signal output end of the pressure sensor (13) is connected with a pressure signal input end of the CNC numerical control center (1), and a signal output end of the CNC numerical control center (1) is connected with a control end of the spindle motor (6).

2. The deep hole drill rod protection system according to claim 1, characterized in that a chuck (14) is arranged at the front end of the main shaft (5), and the main shaft (5) is in transmission connection with the drill rod (7) through the chuck (14).

3. Deep hole drill rod protection system according to claim 1, characterized in that the water supply pipe (11) of the coolant tank (10) is connected to the rear end of the main shaft (5) via a rotary seal (15).

4. Deep-hole drill rod protection system according to claim 1, characterized in that the return pipe (12) of the coolant tank (10) is connected between the drill head (8) and the end face of the workpiece by means of an end face seal (16).

5. A deep hole drill rod protection system according to claim 1, characterized in that the feeding motor (3) is a servo motor, and the CNC control center (1) is further configured to obtain real-time current of the servo motor.