Drilling machine

Abstract

The drilling machine comprises a base, a top plate and a protective cover, electric hydraulic cylinders are installed on the two sides of one end of the top of the top plate through installation bases, and movable plates are installed on output shafts of the electric hydraulic cylinders through screws. A servo motor is mounted at the top of the moving plate through a mounting seat, a motor protector is mounted at one end of the servo motor through a screw, a vertical bevel gear sleeves an output shaft of the servo motor, a linkage rod sleeves one end of the moving plate through a shaft sleeve, and a horizontal bevel gear sleeves the top end of the linkage rod; the bottom end of the linkage rod is connected with a drill rod through a magnetic coupler. According to the novel drilling machine, when the drill rod is stuck in the drilling process, the servo motor cannot be stuck, the motor is not prone to being damaged, and the novel drilling machine is suitable for wide application and popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling machines, and particularly relates to a drilling machine. Background Art

[0002] A drilling machine mainly refers to a machine tool for machining holes in workpieces. Usually, the rotation of the drill bit is the main movement, and the axial movement of the drill bit is the feed movement. The structure of the drilling machine is simple, and the machining accuracy is relatively low. It can drill through holes and blind holes. By replacing special tools, it can perform operations such as reaming, countersinking, boring, or tapping. During the machining process, the workpiece remains stationary while the tool moves. The center of the tool is aligned with the center of the hole, and the tool rotates (main movement); during the machining of valves, a drilling machine is required to open holes.

[0003] Patent No. CN 202020175524.5 discloses a drilling machine for valve production, including a support frame. A circular opening is provided on the right side of the support frame, and a controller is movably clamped in the middle of the circular opening. A side drilling machine is fixedly installed on the left side of the controller. This drilling machine for valve production can achieve high work efficiency by setting a controller, a top drilling machine, and a side drilling machine. With the cooperation of the lifting disc, the rotating disc, and the top drilling machine, it can effectively perform circular hole opening on the top of the valve. For the left and right ends, the controller is manually operated to adjust the position of the side drilling machine by driving the rotating disc. When one hole is completed, the spring is pulled manually, and then the drilling of the next round hole is carried out. Just work in sequence. When the hole opening at one end of the valve is completed, the rotating disc is used to perform hole opening at the other end. The operation is simple and the work efficiency is high.

[0004] The existing drilling machines have the following disadvantages: 1. When the drill rod gets stuck during drilling, the servo motor will be stuck, which is likely to damage the motor. Therefore, we propose a drilling machine. Summary of the Invention

[0005] The main purpose of the utility model is to provide a drilling machine, which can effectively solve the problems in the background art.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A drilling machine includes a base, a top plate, and a protective cover. On both sides at one end of the top of the top plate, electric hydraulic cylinders are installed through mounting seats. The output shaft of the electric hydraulic cylinder is installed with a moving plate through screws. A servo motor is installed on the top of the moving plate through a mounting seat, and a motor protector is installed at one end of the servo motor through screws. A vertical bevel gear is sleeved on the output shaft of the servo motor. One end of the moving plate is sleeved with a linkage rod through a bushing, and a horizontal bevel gear is sleeved at the top of the linkage rod. The bottom end of the linkage rod is connected to a drill rod through a magnetic coupler.

[0008] Further, one side of the top end of the top plate is installed with a drill press controller through screws, and the output end of the drill press controller is electrically connected to the input end of the electric hydraulic cylinder through a wire. The drill press controller is used to automatically control the output stroke of the electric hydraulic cylinder, thereby driving the drill rod to move downward to drill the valve.

[0009] Further, the output end of the motor protector is electrically connected to the input end of the servo motor through a wire. The function of the motor protector is to provide comprehensive protection and control for the servo motor. When the servo motor experiences overcurrent, undercurrent, open phase, locked rotor, short circuit, overvoltage, undervoltage, leakage, three-phase imbalance, or overheating, it will give an alarm or perform protection and control.

[0010] Further, both sides of the bottom of the top plate are installed with a base through an X-shaped mounting bracket and bolts.

[0011] Further, the horizontal bevel gear and the vertical bevel gear mesh with each other. The upper end of the moving plate is installed with a protective cover through screws, and the servo motor, the horizontal bevel gear, and the vertical bevel gear are all located inside the protective cover.

[0012] Compared with the prior art, the present utility model has the following beneficial effects:

[0013] 1. For a drill press of the present utility model, after connecting the power supply of the servo motor, the servo motor drives the vertical bevel gear to rotate. Since the vertical bevel gear and the horizontal bevel gear mesh with each other, the linkage rod is driven to rotate rapidly. The drill press controller automatically controls the output stroke of the electric hydraulic cylinder, thereby driving the drill rod to move downward to drill the valve.

[0014] 2. For a drill press of the present utility model, a soft (magnetic) connection is formed between the servo motor and the drill rod by using a magnetic coupling. When the drill rod gets stuck during the drilling process, the servo motor will continue to rotate to avoid damage. The function of the motor protector is to provide comprehensive protection and control for the servo motor. When the servo motor experiences overcurrent, undercurrent, open phase, locked rotor, short circuit, overvoltage, undervoltage, leakage, three-phase imbalance, or overheating, it will give an alarm or perform protection and control. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of a drill press of the present utility model.

[0016] Figure 2 It is a side view of a drill press of the present utility model.

[0017] Figure 3 It is a schematic diagram of the internal structure of the protective cover of a drill press of the present utility model.

[0018] In the figure: 1, base; 2, X-shaped mounting frame; 3, top plate; 4, drill press controller; 5, electro-hydraulic cylinder; 6, protective cover; 7, moving plate; 8, linkage rod; 9, magnetic coupler; 10, drill rod; 11, motor protector; 12, servo motor; 13, horizontal bevel gear; 14, vertical bevel gear; 15, bushing. Specific implementation manner

[0019] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation manners.

[0020] As Figures 1-3 shown, a drill press includes a base 1, a top plate 3 and a protective cover 6. Both sides at one end of the top of the top plate 3 are provided with electro-hydraulic cylinders 5 through mounting seats. The output shaft of the electro-hydraulic cylinder 5 is provided with a moving plate 7 through screws. The top of the moving plate 7 is provided with a servo motor 12 through a mounting seat, and one end of the servo motor 12 is provided with a motor protector 11 through screws. The output shaft of the servo motor 12 is sleeved with a vertical bevel gear 14. One end of the moving plate 7 is sleeved with a linkage rod 8 through a bushing 15, and the top end of the linkage rod 8 is sleeved with a horizontal bevel gear 13. The bottom end of the linkage rod 8 is connected with a drill rod 10 through a magnetic coupler 9.

[0021] Among them, one side of the top end of the top plate 3 is provided with a drill press controller 4 through screws, and the output end of the drill press controller 4 and the input end of the electro-hydraulic cylinder 5 are electrically connected through a wire.

[0022] In this embodiment, as Figure 1 shown, the drill press controller 4 is used to automatically control the output stroke of the electro-hydraulic cylinder 5, so as to drive the drill rod 10 to move downward to drill holes in the valve.

[0023] Among them, the output end of the motor protector 11 and the input end of the servo motor 12 are electrically connected through a wire.

[0024] In this embodiment, as Figure 3 shown, the function of the motor protector 11 is to provide comprehensive protection and control for the servo motor 12, and to alarm or protect and control the servo motor 12 in case of overcurrent, undercurrent, open phase, locked rotor, short circuit, overvoltage, undervoltage, leakage, three-phase imbalance, overheating.

[0025] Among them, both sides at the bottom of the top plate 3 are provided with a base 1 through an X-shaped mounting frame 2 and bolts.

[0026] Among them, the horizontal bevel gear 13 and the vertical bevel gear 14 are meshed with each other. The upper end of the moving plate 7 is provided with a protective cover 6 through screws, and the servo motor 12, the horizontal bevel gear 13 and the vertical bevel gear 14 are all located inside the protective cover 6.

[0027] In this embodiment, as Figure 1 shown, the protective cover 6 is used to achieve the effects of dust prevention and waterproofing.

[0028] It should be noted that the present utility model is a drilling machine. During operation, the power supply of the servo motor 12 is turned on, and the servo motor 12 drives the vertical bevel gear 14 to rotate. Since the vertical bevel gear 14 and the horizontal bevel gear 13 are meshed with each other, the linkage rod 8 is driven to rotate rapidly. The output stroke of the electric hydraulic cylinder 5 is automatically controlled by the drilling machine controller 4, so as to drive the drill rod 10 to move downward to drill a hole in the valve. A soft magnetic connection is formed between the servo motor 12 and the drill rod 10 by the magnetic coupler 9. When the drill rod 10 gets stuck during the drilling process, the servo motor 12 will continue to rotate to avoid damage. The function of the motor protector 11 is to provide comprehensive protection control for the servo motor 12, and alarm or protection control is carried out when the servo motor 12 has overcurrent, undercurrent, open phase, locked rotor, short circuit, overvoltage, undervoltage, leakage, three-phase imbalance, or overheating.

[0029] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A drilling machine, comprising a base (1), a top plate (3) and a protective cover (6), characterized in that: On both sides at one end of the top of the top plate (3), electric hydraulic cylinders (5) are installed through mounting seats. The output shaft of the electric hydraulic cylinder (5) is installed with a moving plate (7) through screws. On the top of the moving plate (7), a servo motor (12) is installed through a mounting seat, and one end of the servo motor (12) is installed with a motor protector (11) through screws. A vertical bevel gear (14) is sleeved on the output shaft of the servo motor (12). One end of the moving plate (7) is sleeved with a linkage rod (8) through a bushing (15), and a horizontal bevel gear (13) is sleeved on the top end of the linkage rod (8). The bottom end of the linkage rod (8) is connected with a drill rod (10) through a magnetic coupler (9).

2. A drill press according to claim 1, characterized in that: On one side of the top end of the top plate (3), a drill press controller (4) is installed through screws, and the output end of the drill press controller (4) and the input end of the electric hydraulic cylinder (5) are electrically connected through a wire.

3. A drilling machine according to claim 1, characterized in that: The output end of the motor protector (11) and the input end of the servo motor (12) are electrically connected through a wire.

4. A drilling machine according to claim 1, characterized in that: On both sides of the bottom of the top plate (3), a base (1) is installed through an X-shaped mounting bracket (2) and bolts.

5. A drilling machine according to claim 1, characterized in that: The horizontal bevel gear (13) and the vertical bevel gear (14) are meshed with each other. A protective cover (6) is installed on the upper end of the moving plate (7) through screws, and the servo motor (12), the horizontal bevel gear (13) and the vertical bevel gear (14) are all located inside the protective cover (6).

Images