High-speed starting and stopping device of high-speed drilling machine spindle

Abstract

The utility model relates to the technical field of main shaft starting and stopping, and discloses a high-speed drilling machine main shaft high-speed starting and stopping device which comprises a mounting plate and a motor, a main shaft body is arranged at the output end of the motor, an electromagnetic brake body is fixedly connected to the bottom face of the motor, and a fixing assembly is fixedly connected to the bottom end of the electromagnetic brake body. One end of the fixing assembly is in threaded connection with a limiting column, and one end of the limiting column is fixedly connected with a mounting assembly. According to the high-speed starting and stopping device for the high-speed drilling machine main shaft, through the arrangement of the air cooling assembly, when the high-speed starting and stopping device is used, an air cooling sleeve is installed on an installation suite, when the main shaft body works, a draught fan is started, the draught fan conveys air into an annular air pipe through an output pipe, and the air is blown to the surface of the main shaft body through air holes, so that heat dissipation is conducted on the main shaft body; the main shaft is prevented from generating heat in the high-speed operation process to influence the working state of the main shaft, and the service life of the main shaft is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of spindle start-stop technology, and in particular to a high-speed start-stop device for a high-speed drilling machine spindle. Background Technology

[0002] A drilling machine is a machine tool that primarily uses a drill bit to machine holes in a workpiece. Typically, the rotation of the drill bit is the main motion, and the axial movement of the drill bit is the feed motion. Drilling machines have a simple structure and relatively low machining accuracy. They can drill through holes and blind holes. By changing special tools, they can also perform reaming, countersinking, boring, or tapping. During machining, the workpiece remains stationary while the tool moves, aligning its center with the hole center and rotating (the main motion). The key characteristic of a drilling machine is that the workpiece is stationary while the tool rotates. The spindle is the core component of the drilling machine, directly affecting machining efficiency, accuracy, and stability. To ensure rapid start-up and stopping of the spindle at high speeds, a start-stop device is usually used.

[0003] In practical use, most existing high-speed drilling machine spindle start-stop devices use frequency converters for control. Although they can provide smooth acceleration and deceleration control, the control precision may be insufficient at high speeds, and automatic start-stop is difficult. In addition, the spindle generates heat during high-speed operation, which affects the spindle's working condition and makes it difficult to extend its service life. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The purpose of this invention is to provide a high-speed start-stop device for a high-speed drilling machine spindle, which solves the problems mentioned in the background art, such as difficulty in automatic start-stop and heat generation, which affect the working state of the spindle and make it difficult to improve its service life.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-speed start-stop device for a high-speed drilling machine spindle, comprising a mounting plate and a motor. The output end of the motor is equipped with a spindle body. An electromagnetic brake body is fixedly connected to the bottom surface of the motor. A fixing assembly is fixedly connected to the bottom end of the electromagnetic brake body. One end of the fixing assembly is threadedly connected to a limit post. One end of the limit post is fixedly connected to a mounting assembly. A distance sensor is inserted into the interior of the mounting assembly. A wind-cooling assembly is provided on the surface of the mounting plate.

[0008] The mounting assembly includes a limiting ring fixedly connected to one end of a limiting post. Limiting holes are provided on both sides of the surface of the limiting ring. A limiting bolt is threaded into the inside of the limiting hole. A fixing piece is fixedly connected to one end of the limiting bolt.

[0009] The air-cooled assembly includes a fan mounted on the surface of the mounting plate. The output end of the fan is connected to an output pipe, and one end of the output pipe is threaded to an annular air duct. The inner wall of the annular air duct has air holes.

[0010] As a further embodiment of this utility model, the fixing component includes a mounting kit fixedly connected to the bottom end of the electromagnetic brake body, and a mounting rod is fixedly connected to one end of the mounting kit, which facilitates fixing the limiting ring.

[0011] As a further embodiment of this utility model, an air-cooling sleeve is fixedly connected to the outer wall of the annular air duct, the top end of the air-cooling sleeve is fixedly connected to the bottom end of the mounting kit, and the inside of the air-cooling sleeve is sleeved on the outside of the main shaft body. The air-cooling sleeve facilitates the installation of the annular air duct.

[0012] As a further embodiment of this utility model, a support spring is sleeved on the surface of the limiting bolt, and one end of the support spring is fixedly connected to the inner wall of the limiting ring. The support spring helps to increase stability.

[0013] As a further embodiment of this utility model, a frequency converter body is fixedly installed on the top surface of the mounting plate, and one side of the frequency converter body is electrically connected to one side of the motor through a power line, so that the frequency converter body can easily control the start and stop of the motor.

[0014] As a further embodiment of this utility model, a PLC controller is electrically connected to the other side of the inverter body via a power line. The PLC controller is mounted on one side of the mounting plate surface, which facilitates monitoring and issuing operation commands.

[0015] As a further embodiment of this utility model, one side of the PLC controller is electrically connected to the electromagnetic brake body via a power line, and the other side of the PLC controller is electrically connected to a distance sensor via a power line, which facilitates distance measurement.

[0016] (III) Beneficial Effects

[0017] This utility model provides a high-speed start-stop device for a high-speed drilling machine spindle, which has the following beneficial effects:

[0018] 1. This high-speed drilling machine spindle high-speed start-stop device, through the installation of components, a distance sensor, a PLC controller, and an electromagnetic brake body, operates by connecting the frequency converter to the motor via wires. The distance sensor is installed inside the limit ring. The frequency converter adjusts the motor speed, enabling smooth acceleration and deceleration of the spindle body during start-up and stop. During spindle operation, the PLC controller sets the monitoring parameters of the distance sensor. When the distance to the workpiece is within the stop parameter range, a monitoring signal is sent to the PLC controller. The PLC controller then issues an operation command to the electromagnetic brake body and the frequency converter body, stopping the motor. The electromagnetic brake body quickly stops the spindle. Similarly, when the workpiece distance is within the start parameter range, the spindle body starts rotating, thus achieving automatic start-stop and improving the accuracy of spindle start-stop control.

[0019] 2. The high-speed start-stop device for the high-speed drilling machine spindle, through the setting of the air-cooling component, allows for the installation of the air-cooling sleeve on the mounting kit during use. When the spindle body is working, the fan is started, and the fan delivers air through the output pipe to the annular air duct. The air is then blown onto the surface of the spindle body through the air holes, thereby dissipating heat from the spindle body. This prevents the spindle from generating heat during high-speed operation, which could affect the spindle's working condition and help extend the spindle's service life. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the installation component structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the electromagnetic brake body and main shaft structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the air-cooled component structure of this utility model.

[0024] In the diagram: 1. Mounting plate; 2. Motor; 3. Spindle body; 4. Electromagnetic brake body; 5. Fixing assembly; 501. Mounting kit; 502. Mounting rod; 6. Limiting post; 7. Mounting assembly; 701. Limiting ring; 702. Limiting bolt; 703. Fixing plate; 8. Distance sensor; 9. Air-cooling assembly; 901. Fan; 902. Output pipe; 903. Annular air duct; 10. Air-cooling sleeve; 11. Support spring; 12. Inverter body; 13. PLC controller. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0026] Please see Figures 1 to 4 This utility model provides a technical solution: a high-speed start-stop device for a high-speed drilling machine spindle, comprising a mounting plate 1 and a motor 2. A spindle body 3 is mounted at the output end of the motor 2. An electromagnetic brake body 4 is fixedly connected to the bottom surface of the motor 2. A fixing component 5 is fixedly connected to the bottom end of the electromagnetic brake body 4. A limit post 6 is threadedly connected to one end of the fixing component 5. A mounting component 7 is fixedly connected to one end of the limit post 6. A distance sensor 8 is inserted into the interior of the mounting component 7. A wind-cooling component 9 is mounted on the surface of the mounting plate 1.

[0027] Mounting assembly 7 includes a limiting ring 701 fixedly connected to one end of the limiting post 6. Limiting holes are formed on both sides of the limiting ring 701, and a limiting bolt 702 is threaded into the internal of each limiting hole. A fixing piece 703 is fixedly connected to one end of the limiting bolt 702. Through the setup of mounting assembly 7, distance sensor 8, PLC controller 13, and electromagnetic brake body 4, during use, the inverter body 12 is connected to the motor 2 with a wire. The distance sensor 8 is installed inside the limiting ring 701, and the inverter adjusts the speed of the motor 2, allowing the spindle body 3 to be smoothly adjusted during start-up and stop. During acceleration and deceleration, when the spindle body 3 is working, the PLC controller 13 sets the monitoring parameters of the distance sensor 8. When the distance to the workpiece is detected to be within the stop parameter range, a monitoring signal is sent to the PLC controller 13. The PLC controller 13 then sends an operation command to the electromagnetic brake body 4 and the frequency converter body 12, causing the motor 2 to stop rotating. The electromagnetic brake body 4 quickly stops the spindle from rotating. Similarly, when the distance to the workpiece is detected to be within the open parameter range, the spindle body 3 starts rotating, thereby achieving the purpose of automatic start and stop, which helps to improve the accuracy of spindle start and stop control.

[0028] The air-cooling assembly 9 includes a fan 901 mounted on the surface of the mounting plate 1. The output end of the fan 901 is connected to an output pipe 902, and one end of the output pipe 902 is threadedly connected to an annular air duct 903. The inner wall of the annular air duct 903 has air holes. With the air-cooling assembly 9, when in use, the air-cooling sleeve 10 is installed on the mounting kit 501. When the spindle body 3 is working, the fan 901 is started. The fan 901 delivers air through the output pipe 902 into the annular air duct 903, and blows the air through the air holes onto the surface of the spindle body 3, thereby dissipating heat from the spindle body 3. This prevents the spindle from generating heat during high-speed operation, which would affect the working condition of the spindle and help improve the service life of the spindle.

[0029] The fixing component 5 includes a mounting kit 501 fixedly connected to the bottom of the electromagnetic brake body 4. One end of the mounting kit 501 is fixedly connected to a mounting rod 502. The fixing component 5 serves to install the distance sensor 8.

[0030] An air-cooled sleeve 10 is fixedly connected to the outer wall of the annular air duct 903. The top end of the air-cooled sleeve 10 is fixedly connected to the bottom end of the mounting kit 501. The inside of the air-cooled sleeve 10 is sleeved on the outside of the main shaft body 3. The annular air duct 903 is used to deliver cooling air.

[0031] A support spring 11 is sleeved on the surface of the limit bolt 702. One end of the support spring 11 is fixedly connected to the inner wall of the limit ring 701. The support spring 11 plays a stabilizing role.

[0032] The inverter body 12 is fixedly installed on the top surface of the mounting plate 1. One side of the inverter body 12 is electrically connected to one side of the motor 2 through a power line. The inverter body 12 plays a control role.

[0033] The other side of the inverter body 12 is electrically connected to a PLC controller 13 via a power cord. The PLC controller 13 is installed on one side of the mounting plate 1. Through the settings of the PLC controller 13, it plays the role of monitoring and issuing operation commands.

[0034] One side of the PLC controller 13 is electrically connected to the electromagnetic brake body 4 via a power line, and the other side of the PLC controller 13 is electrically connected to the distance sensor 8 via a power line. The distance sensor 8 is used for distance measurement.

[0035] The electromagnetic brake body 4 is a Tooth Clutch Brake (TCB) brake, and the inverter body 12 is an ATLEEPOWER AS2-DIPM. The above parameters and models can be selected according to the actual situation.

[0036] In this invention, the working steps of the device are as follows:

[0037] First step: When in use, install the air-cooled sleeve 10 on the mounting kit 501. When the spindle body 3 is working, start the fan 901. The fan 901 delivers air through the output pipe 902 to the annular air duct 903, and blows the air onto the surface of the spindle body 3 through the air holes.

[0038] The second step: During use, connect the inverter body 12 to the motor 2 with a wire. Install the distance sensor 8 inside the limit ring 701. The inverter adjusts the speed of the motor 2 so that the spindle body 3 can smoothly adjust acceleration and deceleration when starting and stopping. During the operation of the spindle body 3, the PLC controller 13 sets the monitoring parameters of the distance sensor 8. When the distance to the workpiece is detected to be within the stop parameter range, a monitoring signal is sent to the PLC controller 13. The PLC controller 13 sends an operation command to the electromagnetic brake body 4 and the inverter body 12 to stop the motor 2 from rotating. The electromagnetic brake body 4 quickly stops the spindle from rotating. Similarly, when the distance to the workpiece is detected to be within the open parameter range, the spindle body 3 starts to rotate.

[0039] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0040] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-speed start-stop device for a high-speed drilling machine spindle, comprising a mounting plate (1) and a motor (2), characterized in that: The output end of the motor (2) is provided with a main shaft body (3), the bottom surface of the motor (2) is fixedly connected to an electromagnetic brake body (4), the bottom end of the electromagnetic brake body (4) is fixedly connected to a fixing component (5), one end of the fixing component (5) is threadedly connected to a limit post (6), one end of the limit post (6) is fixedly connected to a mounting component (7), a distance sensor (8) is inserted into the mounting component (7), and the surface of the mounting plate (1) is provided with a wind-cooling component (9). The mounting assembly (7) includes a limiting ring (701) fixedly connected to one end of the limiting post (6). Limiting holes are provided on both sides of the surface of the limiting ring (701). A limiting bolt (702) is threaded into the inside of the limiting hole. A fixing piece (703) is fixedly connected to one end of the limiting bolt (702). The air-cooled assembly (9) includes a fan (901) disposed on the surface of the mounting plate (1). The output end of the fan (901) is connected to an output pipe (902). One end of the output pipe (902) is threadedly connected to an annular air duct (903). The inner wall of the annular air duct (903) is provided with air holes.

2. The high-speed start-stop device for a high-speed drilling machine spindle according to claim 1, characterized in that: The fixing component (5) includes a mounting kit (501) fixedly connected to the bottom end of the electromagnetic brake body (4), and a mounting rod (502) is fixedly connected to one end of the mounting kit (501).

3. The high-speed start-stop device for a high-speed drilling machine spindle according to claim 1, characterized in that: The outer wall of the annular air duct (903) is fixedly connected to a cooling sleeve (10), the top end of the cooling sleeve (10) is fixedly connected to the bottom end of the mounting kit (501), and the inside of the cooling sleeve (10) is sleeved on the outside of the main shaft body (3).

4. The high-speed start-stop device for a high-speed drilling machine spindle according to claim 1, characterized in that: A support spring (11) is sleeved on the surface of the limiting bolt (702), and one end of the support spring (11) is fixedly connected to the inner wall of the limiting ring (701).

5. A high-speed start-stop device for a high-speed drilling machine spindle according to claim 1, characterized in that: The inverter body (12) is fixedly installed on the top surface of the mounting plate (1), and one side of the inverter body (12) is electrically connected to one side of the motor (2) through a power line.

6. A high-speed start-stop device for a high-speed drilling machine spindle according to claim 5, characterized in that: The inverter body (12) is electrically connected to a PLC controller (13) via a power line on the other side, and the PLC controller (13) is mounted on one side of the surface of the mounting plate (1).

7. A high-speed start-stop device for a high-speed drilling machine spindle according to claim 6, characterized in that: One side of the PLC controller (13) is electrically connected to the electromagnetic brake body (4) via a power line, and the other side of the PLC controller (13) is electrically connected to the distance sensor (8) via a power line.

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