Double-station rotor hole push broach machine

Abstract

The utility model relates to rotor inner hole push broach processing technical field especially a kind of double-station rotor inner hole push broach machine. It includes servo electric jar push broach mechanism, tool cleaning mechanism and tool pick-up manipulator. Servo electric jar push broach mechanism is driven by servo motor, built-in pressure sensor real-time feedback and dynamically adjusts feed, avoids broken tool;Tool cleaning mechanism is automatically removed tool iron filings by oil pump, atomizing nozzle and cleaning brush;Tool pick-up manipulator is driven by servo motor to realize Z-axis movement and Y-axis telescopic clamping tool, and cooperate with cleaning operation. The utility model adopts double-station design, significantly improves efficiency, and is equipped with safety grating and three-stage filtering oil tank to ensure safety and environmental protection. The present application realizes efficient, accurate and safe rotor inner hole processing.

Description

Technical Field

[0001] This utility model belongs to the field of rotor inner hole processing technology, specifically a dual-station rotor inner hole pusher machine. Background Technology

[0002] As a crucial component of the internal motor of an air conditioning compressor, the quality of the machining of its inner bore directly impacts the compressor's overall performance and operational stability. Traditional rotor inner bore pusher machining often employs single-station equipment, which is inefficient and fails to meet the demands of modern industry for high output and high quality. Furthermore, traditional pusher machines typically rely on hydraulic or pneumatic systems as power sources. Since pneumatic and hydraulic pressure cannot be adjusted in real-time through feedback, overpressure during machining can easily lead to tool breakage, increasing production costs and reducing efficiency. In addition, traditional equipment lacks automatic cleaning functions, leaving a large amount of metal shavings on the tool during cutting, requiring manual cleaning with an air gun. This process is time-consuming, labor-intensive, and prone to affecting tool life and machining accuracy due to improper operation. Therefore, improving the efficiency of rotor inner bore pusher machining, reducing the risk of tool breakage, and achieving automated tool cleaning and positioning have become pressing technical challenges. This invention aims to comprehensively optimize the existing machining process, improve production efficiency and safety, and reduce the need for manual intervention through a dual-station design, a servo electric cylinder pusher mechanism, and an automated tool cleaning and pickup system. Utility Model Content

[0003] This utility model addresses the shortcomings of existing rotor inner hole pusher machines, such as low single-station efficiency, high frequency of tool breakage due to lack of pressure feedback, and low efficiency of manual tool cleaning. Therefore, this utility model adopts the following technical solution:

[0004] This utility model provides a dual-station rotor internal hole pusher machine, including a servo electric cylinder pusher mechanism, a tool cleaning mechanism, and a tool picking robot. Wherein:

[0005] The servo-electric cylinder pusher mechanism uses a servo motor to drive the servo-electric cylinder as the main power source. The servo-electric cylinder has an embedded pressure sensor to monitor the pressure value during the pusher process in real time and feed it back to the servo motor to dynamically adjust the feed rate. The tool cleaning mechanism is mounted on the mounting plate of the servo-electric cylinder pusher mechanism and mainly includes an oil pump, oil distribution block, atomizing nozzle, cleaning brush, and cylinder. It is used to remove residual iron filings from the tool's surface after cutting. The tool picking robot is driven by a servo motor and planetary reducer to achieve linear movement in the Z-axis direction using a gear and rack structure. Two pneumatic grippers are mounted at the front end, and their extension and retraction in the Y-axis direction are controlled by a cylinder. This gripper is used to pick up the tool and cooperate with the tool cleaning mechanism to complete the cleaning operation.

[0006] Furthermore, the servo-electric cylinder pusher mechanism uses a servo motor to drive the servo-electric cylinder for pusher cutting. A guide post connects to a mounting plate at the bottom, and a rotor fixture is mounted on the mounting plate. The rotor fixture has a through hole at its center for the tool to pass through. A linear bearing is mounted on the guide post to provide stable guidance. When the operator places the rotor on the rotor fixture and leaves the safety light curtain area, they activate the two-hand start button. The tool-picking robot then places the tool into the rotor's inner hole. The servo motor drives the servo-electric cylinder downwards. When the pressure sensor detects that the pressure reaches a preset value, a trigger signal causes the cylinder of the tool-picking robot to retract. The servo-electric cylinder continues to press down until the tool completely passes through the rotor and falls into the tool fixture of the tool cleaning mechanism.

[0007] Specifically, the pressure sensor and servo motor of the servo electric cylinder pusher mechanism are dynamically adjusted through a closed-loop control system. Specifically, the pressure sensor collects the pressure value during the pusher process in real time and transmits the signal to the servo motor controller. The servo motor controller calculates the feed rate that needs to be adjusted based on the pressure value changes, thereby ensuring uniform force on the tool during the pusher process and avoiding tool breakage due to overpressure. Furthermore, when the servo electric cylinder extends to press down on the tool, the pressure sensor triggers a signal to retract the cylinder of the tool-picking robot, preventing excessive wear of the clamping blocks or damage to the robot.

[0008] Furthermore, the tool cleaning mechanism draws oil from the oil tank via an oil pump, delivers it to the atomizing nozzle via an oil distribution block, and sprays the atomized oil onto the tool surface to remove residual iron filings. Specifically, a tool-picking robot grips the tool and moves it up and down along the Z-axis within the tool cleaning mechanism, working in conjunction with a cleaning brush to further clean the tool surface. The specific operation process is as follows: S1, after completing cutting, the tool falls into the tool fixture of the tool cleaning mechanism; S2, the cylinder of the tool cleaning mechanism extends, driving the tool cleaning mechanism to descend along a linear guide rail; S3, the oil pump starts, delivering oil through the oil distribution block to the atomizing nozzle, and the atomized oil is sprayed onto the tool surface; S4, the tool-picking robot grips the tool and moves it up and down along the Z-axis, working in conjunction with the cleaning brush to thoroughly clean the tool surface; S5, after cleaning, the tool-picking robot places the tool back into the rotor's inner hole.

[0009] Specifically, the tool-picking robot achieves linear movement in the Z-axis direction via a servo motor and planetary reducer driven by a rack and pinion structure. Two pneumatic grippers, named gripper A and gripper B, are mounted at the front end, and their extension and retraction in the Y-axis direction are controlled by a cylinder. The specific operation process is as follows: S1, the tool-picking robot moves along the Z-axis to the tool holder position, the cylinder extends, and grippers A and B open to grip the tool holder; S2, after gripping, the tool-picking robot moves up and down along the Z-axis to allow the cleaning brush to thoroughly clean the tool; S3, after cleaning, the tool-picking robot places the tool back into the rotor's inner hole, the servo electric cylinder pushes the tool, and when the pressure detected by the pressure sensor reaches a preset value, grippers A and B release the tool, completing one machining cycle.

[0010] Furthermore, this invention adopts a dual-station design, significantly improving production efficiency compared to traditional single-station push-blade machines. The equipment is equipped with safety light curtains, two-hand start buttons, and an emergency stop switch to ensure operator safety. Specifically, a filter box and a three-stage filtration oil tank are located at the bottom of the frame to filter iron filings and residues generated during the cleaning process, preventing oil circuit blockage. Specifically, the oil used for cleaning the blades flows through the filter box, filtering out the iron filings and residues, and then flows into the three-stage filtration oil tank for further precision filtration. Finally, the filtered oil is pumped back into the machine for recycling.

[0011] Furthermore, the technical effects of this utility model are achieved through the following means: the pressure sensor of the servo electric cylinder pusher mechanism provides real-time feedback of the pressure value and dynamically adjusts the feed rate, effectively reducing tool breakage caused by lack of pressure feedback; the coordinated work of the tool cleaning mechanism and the tool picking robot enables automatic tool cleaning and positioning, avoiding the tedious process of traditional manual tool cleaning; the dual-station design and automated operation process significantly improve processing efficiency; and multiple protection measures, including safety light curtains, two-hand start buttons, and emergency stop switches, maximize the safety of operators.

[0012] In summary, this utility model achieves efficient, precise, and safe machining of rotor inner holes through the organic combination of a servo electric cylinder pusher mechanism, a tool cleaning mechanism, and a tool picking robot, and has significant technical advantages and application value. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the servo electric cylinder pusher mechanism of this utility model;

[0014] Figure 2 This is a schematic diagram of the tool cleaning mechanism of this utility model;

[0015] Figure 3 This is a schematic diagram of the tool-picking robot of this utility model;

[0016] Figure 4 This is a front view of the dual-station rotor inner hole pusher of this utility model;

[0017] Figure 5 This is a side view of the dual-station rotor inner hole pusher of this utility model.

[0018] The attached diagram is labeled as follows: 1. Servo electric cylinder pusher mechanism; 2. Servo motor; 3. Servo electric cylinder; 4. Guide column; 5. Linear bearing; 6. Pressure sensor; 7. Rotor fixture; 8. Oil guide groove; 9. Cutting tool; 10. Cutting tool cleaning mechanism; 11. Cylinder; 12. Linear guide rail; 13. Cutting tool fixture; 14. Oil distribution block; 15. Atomizing nozzle; 16. Cleaning brush; 17. Cutting tool picking robot; 18. Servo motor; 19. Planetary reducer; 20. Gear and rack; 21. Cylinder; 22. Linear guide rail; 23. Gripper A; 24. Gripper B; 25. Frame; 26. Safety light curtain; 27. Two-hand start button; 28. Emergency stop switch; 29. ​​Oil tank. Detailed Implementation

[0019] This utility model provides a dual-station rotor inner hole pusher, the structure and operating principle of which are combined with the attached... Figure 1 To be continued Figure 5 A detailed description is provided below. This equipment achieves high efficiency, precision, and safety in rotor internal hole machining through the coordinated operation of the servo electric cylinder pusher mechanism 1, the tool cleaning mechanism 10, and the tool picking robot 17. The specific designations and functions of each component in the attached drawings are explained below.

[0020] The overall structure of this utility model is based on a frame 25, which is welded from square tubing. A sheet metal cover is installed on top to protect the internal structure and prevent oil splashing. An open manual loading port is designed at the front, allowing operators to place the rotor onto the rotor fixture 7. A safety light curtain 26 is installed at the manual loading port; the equipment automatically stops when an operator enters the light curtain's range, ensuring operator safety. A cleaning port is located below the front sheet metal cover for easy daily maintenance. The other three sides are maintenance doors, normally closed with sealing buckles, and only opened when internal maintenance is required. A filter box is installed at the bottom of the frame 25 to filter iron filings and residues generated during cleaning of the blades 9, preventing these impurities from clogging the oil pump. A three-stage filtration oil tank 29 is installed on the ground behind the frame 25 for further precise filtration of iron filings and residues, ensuring the oil is clean before being pumped back into the machine for reuse.

[0021] The servo-electric cylinder pusher mechanism 1 is one of the core components of this utility model. It mainly consists of a servo motor 2, a servo-electric cylinder 3, a guide column 4, a linear bearing 5, and a pressure sensor 6. The servo motor 2 drives the servo-electric cylinder 3 to perform pusher cutting operations. The guide column 4 is connected to the mounting plate at the bottom, and a rotor fixture 7 is fixed on the mounting plate. The rotor fixture 7 has a through hole in its center for the tool 9 to pass through. The linear bearing 5 is installed on the guide column 4 to ensure that the servo-electric cylinder 3 maintains stable linear motion during the pusher operation. After the operator places the rotor on the rotor fixture 7, they leave the area of ​​the safety light curtain 26 and press the two-hand start button 27 to start the equipment. At this time, the tool picker robot 17 places the tool 9 into the inner hole of the rotor, and the servo motor 2 drives the servo-electric cylinder 3 to press down. The pressure sensor 6 is embedded in the top of the pressure head of the servo-electric cylinder 3 to monitor the pressure value in real time during the pusher operation and transmits the collected pressure signal to the servo motor controller. The servo motor controller dynamically adjusts the feed rate of the servo cylinder 3 according to the pressure value, thereby ensuring that the tool 9 is subjected to uniform force during the pushing process and avoiding tool breakage due to overpressure. When the pressure detected by the pressure sensor 6 reaches the preset value, the trigger signal causes the cylinder 21 of the tool picking robot 17 to retract, and the servo cylinder 3 continues to press down until the tool 9 completely passes through the rotor fixture 7 and falls into the tool fixture 13 of the tool cleaning mechanism 10. Then the servo cylinder 3 retracts to the upper initial position.

[0022] The tool cleaning mechanism 10 is mounted on the mounting plate of the servo electric cylinder pusher mechanism 1. It mainly consists of a nozzle 15, an oil distribution block 14, a cleaning brush 16, a cylinder 11, and a linear guide rail 12. After the tool 9 completes cutting, it falls into the tool fixture 13. The cylinder 11 of the tool cleaning mechanism 10 extends, driving the entire mechanism to descend along the linear guide rail 12. Oil in the oil tank 29 is pumped to the oil distribution block 14 and then atomized and sprayed onto the surface of the tool 9 through the atomizing nozzle 15 at the front end, removing residual metal filings. Subsequently, the tool pick-up robot 17 grips the tool 9 and moves it up and down along the Z-axis, working with the cleaning brush 16 to further clean the surface of the tool 9. The cleaning brush 16 is designed to penetrate deep into the fine grooves on the surface of the tool 9, ensuring thorough cleaning. After cleaning, the tool pick-up robot 17 releases the tool 9, the cylinder 11 of the tool cleaning mechanism 10 retracts, and the mechanism rises to its initial position.

[0023] The tool-picking robot 17 is a key component for the automatic cleaning and resetting of the tool 9. It mainly consists of a servo motor 18, a planetary reducer 19, a gear rack 20, a cylinder 21, a linear guide rail 22, and grippers A23 and B24. The servo motor 18 drives the gear rack 20 through the planetary reducer 19 to achieve linear movement in the Z-axis direction, while the cylinder 21 controls the extension and retraction in the Y-axis direction. The workflow of the tool picking robot 17 is as follows: S1, after the tool picking robot 17 moves along the Z-axis to the tool holder position, the grippers A23 and B24 open, and the cylinder 21 extends along the linear guide 22; S2, after the cylinder 21 extends to the position, the grippers A23 and B24 clamp the tool holder; S3, the tool picking robot 17 moves up and down along the Z-axis, and works with the cleaning brush 16 of the tool cleaning mechanism 10 to thoroughly clean the surface of the tool 9; S4, after cleaning, the tool picking robot 17 puts the tool 9 back into the rotor inner hole; S5, the servo electric cylinder pusher mechanism 1 presses down, and when the pressure detected by the pressure sensor 6 reaches the preset value, the grippers A23 and B24 release the tool 9, the cylinder 21 retracts, and the tool picking robot 17 returns to the initial position to prepare for the next cycle.

[0024] This invention employs a dual-station design, significantly improving production efficiency compared to traditional single-station push-blade machines. The equipment is equipped with an emergency stop switch 28, allowing operators to quickly halt operation in emergencies. Furthermore, the filter box at the bottom of the frame 25 works in conjunction with the three-stage filtration oil tank 29 to ensure effective filtration of iron filings generated during blade cleaning, preventing oil circuit blockage. The three-stage filtration function of the oil tank 29 includes a primary filter, a secondary magnetic filter, and a precision filter element, each targeting iron filings of different sizes. Finally, the filtered oil is pumped back into the machine for reuse.

[0025] The technical effects of this utility model are achieved through the following means: the pressure sensor 6 of the servo electric cylinder pusher mechanism 1 provides real-time feedback of the pressure value and dynamically adjusts the feed rate, avoiding the tool breakage phenomenon caused by the lack of pressure feedback during traditional pusher processes; the tool cleaning mechanism 10 and the tool picking robot 17 work together to realize the automatic cleaning and positioning of the tool 9, avoiding the tedious process of traditional manual tool cleaning; the dual-station design and automated operation process significantly improve processing efficiency; the multiple protection measures of the safety light curtain 26, the two-hand start button 27, and the emergency stop switch 28 maximize the safety of the operator. In summary, this utility model, through the organic combination of various components, achieves efficient, precise, and safe rotor inner hole machining, and has significant technical advantages and application value.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dual-station rotor inner hole pusher machine, characterized in that, include: The servo-electric cylinder pusher mechanism (1), the tool cleaning mechanism (10), and the tool picking robot (17) are configured as follows: the servo-electric cylinder pusher mechanism (1) is driven by a first servo motor (2) to drive a servo-electric cylinder (3) as the main power source. A pressure sensor (6) is embedded inside the servo-electric cylinder (3) to monitor the pressure value during the pusher process in real time and feed the signal back to the first servo motor (2) to dynamically adjust the feed rate; the tool cleaning mechanism (10) is mounted on the mounting plate of the servo-electric cylinder pusher mechanism (1) and includes... An oil pump, an oil distribution block (14), an atomizing nozzle (15), a cleaning brush (16), and a first cylinder (11) are used to remove residual iron filings from the surface of the cutting tool (9). The cutting tool picking robot (17) is driven by a second servo motor (18) and a planetary reducer (19) to achieve linear movement in the Z-axis direction through a gear rack (20) structure. The front end is equipped with two pneumatic grippers, which are controlled by a second cylinder (21) to extend and retract in the Y-axis direction. This is used to grip the cutting tool (9) and cooperate with the cutting tool cleaning mechanism (10) to complete the cleaning operation.

2. The dual-station rotor inner hole pusher machine according to claim 1, characterized in that, The servo electric cylinder pusher mechanism (1) includes a guide column (4) and a linear bearing (5). The guide column (4) is connected to the mounting plate at the bottom. A rotor fixture (7) is provided on the mounting plate. The rotor fixture (7) has a through hole in the center for the tool (9) to pass through. The linear bearing (5) is installed on the guide column (4) to provide a stable guiding function.

3. The dual-station rotor inner hole pusher machine according to claim 2, characterized in that, The pressure sensor (6) of the servo electric cylinder pusher mechanism (1) is further defined to achieve dynamic adjustment between the pressure sensor (6) and the first servo motor (2) through a closed-loop control system. The pressure sensor (6) collects the pressure value during the pusher process in real time and transmits the signal to the servo motor controller to calculate the feed amount.

4. The dual-station rotor inner hole pusher machine according to claim 1, characterized in that, The tool cleaning mechanism (10) draws oil from the oil tank (29) through an oil pump and delivers it to the atomizing nozzle (15) through the oil distribution block (14). The atomized oil is sprayed onto the surface of the tool (9) to remove residual iron filings.

5. The dual-station rotor inner hole pusher machine according to claim 4, characterized in that, The tool cleaning mechanism (10) further includes a linear guide rail (12) and a first cylinder (11). The first cylinder (11) drives the tool cleaning mechanism (10) to descend along the linear guide rail (12) to cooperate with the tool picking robot (17) to complete the cleaning operation of the tool (9).

6. The dual-station rotor inner hole pusher machine according to claim 1, characterized in that, The two pneumatic grippers at the front end of the tool picking robot (17) are gripper A (23) and gripper B (24), respectively. Gripper A (23) and gripper B (24) are controlled by the second cylinder (21) to extend and retract in the Y-axis direction to grip the tool (9).

7. The dual-station rotor inner hole pusher machine according to claim 6, characterized in that, The tool picking robot (17) is further defined to drive the gear rack (20) structure through the second servo motor (18) and planetary reducer (19) to achieve linear movement in the Z-axis direction, and move up and down along the Z-axis to cooperate with the tool cleaning mechanism (10) to complete the cleaning operation of the tool (9).

8. The dual-station rotor inner hole pusher machine according to claim 1, characterized in that, The frame (25) of the dual-station rotor inner hole pusher is equipped with a filter box and an oil tank (29) with three-stage filtration function at the bottom, which is used to filter iron filings and residues generated during the cleaning process and ensure the oil is recycled.

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