Numerical control device for turning and milling combined machining of cast iron parts

Abstract

The utility model belongs to numerical control equipment field especially, it is a kind of cast iron piece turning and milling combined machining numerical control device, including the drive arm in numerical control lathe, the side of drive arm is equipped with control box, the side inner wall of control box is rotatably installed with rotating shaft, one end of rotating shaft extends to the outside of drive arm and is fixedly installed with cutter disc, the outside of cutter disc is installed with multiple turning and milling cutters, the top of control box is installed with servo motor, the output shaft of servo motor extends to control box and is fixedly installed with drive shaft, the bottom end of drive shaft is rotatably installed on the bottom inner wall of control box, drive shaft is fixedly installed with worm, and worm gear is fixedly sleeved on rotating shaft. The utility model design is reasonable, and the quick switching of tool is realized by servo motor drive worm gear drive, and the locking of combination mechanism and the real-time detection of pressure sensor are combined, effectively improve the tool switching efficiency and positioning accuracy, enhance the processing stability and security.

Description

Technical Field

[0001] This utility model relates to the field of CNC equipment technology, and in particular to a CNC device for combined turning and milling machining of cast iron parts. Background Technology

[0002] In the machinery manufacturing industry, cast iron parts are widely used in the manufacture of components for various mechanical equipment due to their excellent casting properties, vibration damping, and wear resistance. Turning and milling are two common and crucial machining processes for cast iron parts. However, existing CNC turning and milling composite machining systems often suffer from problems such as low switching efficiency, poor positioning accuracy, and lack of effective tool position detection and locking mechanisms during tool switching. Low tool switching efficiency leads to excessively long machining interruption time, affecting overall machining efficiency; while the lack of effective detection and locking mechanisms may cause safety accidents due to tool loosening or position displacement during machining, and also makes it impossible to detect abnormal tool positions in time, further affecting machining accuracy and efficiency. Therefore, we propose a CNC turning and milling composite machining system for cast iron parts to solve the above problems. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a CNC device for combined milling and turning of cast iron parts.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A CNC device for combined turning and milling machining of cast iron parts includes a drive arm inside a CNC lathe. A control box is mounted on one side of the drive arm. A rotating shaft is rotatably mounted on the inner wall of one side of the control box. One end of the rotating shaft extends to the outside of the drive arm and is fixedly mounted with a tool disc. Multiple turning and milling tools are mounted on the outside of the tool disc. A servo motor is mounted on the top of the control box. The output shaft of the servo motor extends into the control box and is fixedly mounted with a drive shaft. The bottom end of the drive shaft is rotatably mounted on the bottom inner wall of the control box. A worm gear is fixedly mounted on the drive shaft. A worm wheel is fixedly sleeved on the rotating shaft, and the worm gear meshes with the worm wheel. A fixed plate is fixedly mounted on the drive shaft. An engagement mechanism adapted to the fixed plate is provided inside the control box.

[0005] Preferably, two limiting holes are provided on one inner wall of the control box, and limiting rods are slidably installed in the limiting holes. A drive plate is fixedly installed at one end of the two limiting rods.

[0006] Preferably, the mating mechanism includes a slot and a socket. Multiple slots are equally spaced on the outer side of the fixed plate, and the socket is fixedly installed on one side of the drive plate, and the socket is adapted to the corresponding slot.

[0007] Preferably, a push rod motor is fixedly installed on one side of the control box, and the output shaft of the push rod motor is fixedly installed on the drive plate.

[0008] Preferably, a detection disk is fixedly installed on the rotating shaft, and multiple grooves are equally spaced on one side of the detection disk. The grooves are arranged one-to-one with the milling cutters, and a detection mechanism adapted to the grooves is provided on one side of the drive plate.

[0009] Preferably, the detection mechanism includes a fixed base and a pressure sensor. The fixed base is fixedly installed on one side of the drive plate. Pressure sensors are installed on both the front and rear sides of the fixed base. One end of the fixed base is inserted into the corresponding groove, and the pressure sensor is in contact with the inner wall of the groove.

[0010] Preferably, a controller is installed on one side of the control box, and the pressure sensor, servo motor and push rod motor are all electrically connected to the controller.

[0011] Preferably, the drive arm has a rotating hole, and the rotating shaft is rotatably connected to the rotating hole.

[0012] The beneficial effects of this utility model are: 1. The worm gear transmission driven by the servo motor drives the tool disc to rotate and achieve tool switching. The servo motor has a fast response speed, and the worm gear transmission is stable and efficient, which can quickly complete the tool switching action, greatly reducing the processing interruption time and improving the overall processing efficiency. 2. The detection disc and pressure sensor work together to detect milling cutters. When the tool position deviates, the pressure sensor can transmit the signal to the controller in time. The controller can issue corresponding alarms or control commands, so that operators can find and deal with the problem in time and avoid machining quality problems or safety accidents caused by abnormal tool position. 3. The rotating installation at both ends of the drive shaft, the fit between the rotating shaft and the rotating hole of the drive arm, and the locking function of the insertion mechanism ensure that the various components of the device operate stably during operation, effectively preventing the tool from loosening or shifting position due to vibration or other factors. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural schematic diagram of a CNC device for combined milling and turning of cast iron parts proposed in this utility model; Figure 2 This is a schematic diagram of another perspective of the CNC device for combined milling and turning of cast iron parts proposed in this utility model; Figure 3 This is a partial three-dimensional structural diagram of a CNC device for combined milling and turning of cast iron parts proposed in this utility model; Figure 4 for Figure 3Another perspective of the three-dimensional structure diagram; Figure 5 for Figure 3 A partial three-dimensional structural diagram.

[0014] In the diagram: 101, drive arm; 102, control box; 103, rotating shaft; 104, tool disc; 105, milling cutter; 201, servo motor; 202, drive shaft; 203, worm gear; 204, worm wheel; 301, fixed plate; 302, slot; 303, push rod motor; 304, drive board; 305, socket; 401, detection plate; 402, groove; 403, fixed base; 404, pressure sensor; 501, limit hole; 502, limit rod; 6, controller. Detailed Implementation

[0015] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0016] This application discloses a CNC device for combined turning and milling machining of cast iron parts.

[0017] Reference Figure 1-5 A CNC device for combined turning and milling machining of cast iron parts includes a drive arm 101 inside a CNC lathe. A control box 102 is mounted on one side of the drive arm 101. A rotating shaft 103 is rotatably mounted on the inner wall of one side of the control box 102. One end of the rotating shaft 103 extends to the outside of the drive arm 101 and a tool disc 104 is fixedly mounted thereon. A rotating hole is provided on the drive arm 101, and the rotating shaft 103 is rotatably connected to the rotating hole. Multiple turning and milling tools 105 are mounted on the outside of the tool disc 104. The top of the control box 102... A servo motor 201 is installed in the control box 102. The output shaft of the servo motor 201 extends into the control box 102 and a drive shaft 202 is fixedly installed thereon. The bottom end of the drive shaft 202 is rotatably mounted on the bottom inner wall of the control box 102. A worm gear 203 is fixedly installed on the drive shaft 202. A worm wheel 204 is fixedly sleeved on the drive shaft 103 and meshes with the worm gear 203 and the worm wheel 204. A fixed plate 301 is fixedly installed on the drive shaft 202. The control box 102 is provided with an insertion mechanism that is adapted to the fixed plate 301.

[0018] In this embodiment, two limiting holes 501 are provided on one inner wall of the control box 102. Limiting rods 502 are slidably installed in the limiting holes 501. A drive plate 304 is fixedly installed at one end of the two limiting rods 502. This structure can strictly limit the movement trajectory of the drive plate 304, preventing the drive plate 304 from deviating when driving the socket 305 and the detection mechanism, thus ensuring the accuracy of the insertion locking and position detection. The insertion mechanism includes a slot 302 and a socket 305. Multiple slots 302 are equally spaced on the outer side of the fixed plate 301. The socket 305 is fixedly installed on one side of the drive plate 304. Furthermore, the socket 305 is compatible with the corresponding slot 302. Through the precise compatibility between the socket 305 and the slot 302, mechanical locking can be quickly achieved after the tool is positioned, preventing the drive shaft 202 from rotating due to processing vibration and ensuring the stability of the tool position. A push rod motor 303 is fixedly installed on one side of the control box 102, and the output shaft of the push rod motor 303 is fixedly installed on the drive plate 304. The push rod motor 303 can provide a stable and controllable driving force to the drive plate 304, realizing the automatic insertion and disengagement of the socket 305 and the slot 302 without manual operation, thus improving the automation and efficiency of tool switching.

[0019] In this embodiment, a detection disk 401 is fixedly installed on the rotating shaft 103. Multiple grooves 402 are equally spaced on one side of the detection disk 401. The grooves 402 are arranged one-to-one with the milling cutter 105. A detection mechanism adapted to the grooves 402 is provided on one side of the drive plate 304. The one-to-one correspondence between the grooves 402 and the milling cutter 105 allows the detection mechanism to directly determine whether the current working tool is the target tool by identifying the position of the grooves 402, thereby achieving rapid and accurate identification of the tool position. In this embodiment, the detection mechanism includes a fixed base 403 and a pressure sensor 404. The fixed base 403 is fixedly installed on one side of the drive plate 304. Pressure sensors 404 are installed on both the front and rear sides of the fixed base 403. One end of the fixed base 403 is inserted into the corresponding groove 402, and the pressure sensor 404 is in contact with the inner wall of the groove 402. The dual pressure sensors 404 can simultaneously detect the fit between the fixed base 403 and the groove 402 from both sides, accurately determine whether the tool is offset to the left or right, avoid errors caused by single-sided detection, and improve the reliability of position detection. In this embodiment, a controller 6 is installed on one side of the control box 102, and the pressure sensor 404, servo motor 201 and push rod motor 303 are all electrically connected to the controller 6. The controller 6 can realize the linkage control of each component, automatically complete the tool switching process of unlocking, indexing, locking and detection, and receive the signal of pressure sensor 404 in real time to handle position abnormalities in a timely manner, reduce manual intervention and ensure the continuity of processing.

[0020] In this invention, when the device is not in operation, the socket 305 in the insertion mechanism is inserted into the corresponding slot 302 on the fixed plate 301 to lock the fixed plate 301, drive shaft 202, and rotating shaft 103, preventing the tool disc 104 from rotating arbitrarily; the fixed seat 403 in the detection mechanism is inserted into the corresponding groove 402 on the detection plate 401, and the pressure sensor 404 is in contact with the inner wall of the groove 402 and is in detection state. When it is necessary to switch the milling cutter 105, the operator sends a tool switching command to the controller 6 through the CNC system. After receiving the command, the controller 6 first controls the push rod motor 303 to start. The output shaft of the push rod motor 303 drives the drive plate 304 to move away from the fixed plate 301. The drive plate 304 drives the socket 305 to disengage from the slot 302 on the fixed plate 301, and at the same time drives the fixed seat 403 to disengage from the groove 402 on the detection plate 401, thus releasing the lock on the fixed plate 301, drive shaft 202, rotating shaft 103, and detection plate 401. Controller 6 starts servo motor 201, and the output shaft of servo motor 201 drives drive shaft 202 to rotate. Drive shaft 202 drives worm gear 203 to rotate, and worm gear 203 meshes with worm wheel 204 to drive worm wheel 204 and rotating shaft 103 to rotate. Rotating shaft 103 drives tool disc 104 and detection disc 401 to rotate synchronously. During the rotation of tool disc 104, controller 6 receives encoder signals from servo motor 201 to monitor the rotation angle and position of tool disc 104 in real time, ensuring that tool disc 104 can accurately rotate to the position corresponding to the target tool. When tool disc 104 rotates to the position corresponding to the target tool, the detection disc 401 displays the corresponding position of the target tool. The groove 402 also rotates to the position corresponding to the fixed seat 403. At this time, the controller 6 controls the servo motor 201 to turn off, stopping the rotation of the tool disk 104. At the same time, the controller 6 controls the push rod motor 303 to start. The output shaft of the push rod motor 303 drives the drive plate 304 to move closer to the fixed disk 301. The drive plate 304 drives the socket 305 to insert into the corresponding slot 302 on the fixed disk 301, locking the fixed disk 301, drive shaft 202 and rotating shaft 103 to prevent tool position deviation. At the same time, the drive plate 304 drives the fixed seat 403 to insert into the corresponding groove 402 on the detection disk 401, and the pressure sensor 404 contacts the inner wall of the groove 402. After the tool switching is completed, the drive arm 101 drives the tool disk 104 and the milling cutter 105 to the machining position of the cast iron part. The CNC system controls the milling cutter 105 to perform turning or milling on the cast iron part. During the machining process, the pressure sensor 404 in the detection mechanism continuously detects the tool position and transmits the detection signal to the controller 6. The controller 6 monitors the tool position status in real time. If an abnormal tool position is detected, an alarm is issued in time and the device is controlled to stop machining to ensure the safety and quality of the machining process.

[0021] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A CNC device for combined turning and milling machining of cast iron parts, characterized in that, The system includes a drive arm (101) inside a CNC lathe. A control box (102) is installed on one side of the drive arm (101). A rotating shaft (103) is rotatably installed on the inner wall of one side of the control box (102). One end of the rotating shaft (103) extends to the outside of the drive arm (101) and a tool disc (104) is fixedly installed thereon. Multiple milling cutters (105) are installed on the outside of the tool disc (104). A servo motor (201) is installed on the top of the control box (102). The output shaft of the servo motor (201) extends into the control box (102) and a drive shaft (202) is fixedly installed thereon. The bottom end of the drive shaft (202) is rotatably installed on the bottom inner wall of the control box (102). A worm gear (203) is fixedly installed on the drive shaft (202). A worm wheel (204) is fixedly sleeved on the rotating shaft (103), and the worm gear (203) meshes with the worm wheel (204). A fixed disk (301) is fixedly installed on the drive shaft (202). The control box (102) is provided with an insertion mechanism that is compatible with the fixed disk (301).

2. The CNC device for combined turning and milling of cast iron parts according to claim 1, characterized in that, Two limiting holes (501) are provided on one inner wall of the control box (102). Limiting rods (502) are slidably installed in the limiting holes (501), and a drive plate (304) is fixedly installed at one end of the two limiting rods (502).

3. The CNC device for combined turning and milling machining of cast iron parts according to claim 1, characterized in that, The mating mechanism includes a slot (302) and a socket (305). Multiple slots (302) are equally spaced on the outer side of the fixed plate (301). The socket is fixedly installed on one side of the drive plate (304), and the socket (305) is adapted to the corresponding slot (302).

4. The CNC device for combined turning and milling of cast iron parts according to claim 1, characterized in that, A push rod motor (303) is fixedly installed on one side of the control box (102), and the output shaft of the push rod motor (303) is fixedly installed on the drive plate (304).

5. The CNC device for combined turning and milling of cast iron parts according to claim 1, characterized in that, A detection disk (401) is fixedly installed on the rotating shaft (103). Multiple grooves (402) are equally spaced on one side of the detection disk (401). The grooves (402) are arranged in a one-to-one correspondence with the milling cutter (105). A detection mechanism adapted to the grooves (402) is provided on one side of the drive plate (304).

6. The CNC device for combined turning and milling machining of cast iron parts according to claim 5, characterized in that, The detection mechanism includes a fixed base (403) and a pressure sensor (404). The fixed base (403) is fixedly installed on one side of the drive plate (304). Pressure sensors (404) are installed on both the front and rear sides of the fixed base (403). One end of the fixed base (403) is inserted into the corresponding groove (402), and the pressure sensor (404) is in contact with the inner wall of the groove (402).

7. The CNC device for combined turning and milling machining of cast iron parts according to claim 1, characterized in that, A controller (6) is installed on one side of the control box (102), and the pressure sensor (404), servo motor (201) and push rod motor (303) are all electrically connected to the controller (6).

8. A CNC device for combined milling and turning of cast iron parts according to claim 1, characterized in that, The drive arm (101) has a rotating hole, and the rotating shaft (103) is rotatably connected to the rotating hole.

Images