Motor shell machining automatic production line

Abstract

The utility model provides an automatic production line for machining a motor shell, and belongs to the field of automatic equipment. The problems that an existing motor shell is complex in machining procedure and low in automation degree are solved. The motor shell machining automatic production line comprises a control system and a machine base, a truss is installed in the machine base, a milling device is arranged on the truss, a first tool disc and a second tool disc are arranged on the machine base, the first tool disc and the second tool disc are each provided with a plurality of internal expansion chucks, a moving device is arranged between the first tool disc and the second tool disc, and the first tool disc and the second tool disc are provided with a plurality of internal expansion chucks. The automatic production line for machining the motor shell further comprises a feeding assembly line, a discharging assembly line and two manipulators, and a sensing device is arranged on the middle section of the machine base. The first tool disc and the second tool disc are provided with a plurality of positioning rings which are matched with the internal expanding chucks and are in induction positioning with the induction device. The utility model has the advantage of high degree of automation.

Description

Technical Field

[0001] This utility model belongs to the field of automated equipment and relates to a machining production line, particularly to an automated production line for machining motor housings. Background Technology

[0002] As a core supporting and protective component of the motor system, the motor housing's machining accuracy, structural strength, and surface quality directly affect the motor's operating performance and service life. Traditional motor housing machining mainly relies on a single-machine sequential operation mode, that is, machining is completed sequentially by multiple independent machine tools (such as CNC lathes, milling machines, drilling machines, etc.). Existing processes require multiple manual loading and unloading and process transfers, resulting in long machining cycles, low equipment utilization, and frequent clamping that easily introduces cumulative errors, affecting key accuracy indicators such as coaxiality and flatness. In addition, motor housings are mostly made of cast iron, which is heavy, and manual handling and adjustment are labor-intensive. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned problems in the existing technology by providing an automated production line for machining motor housings.

[0004] The purpose of this utility model can be achieved through the following technical solution: an automated production line for machining motor housings, including a control system and a machine base, characterized in that a fixed truss is installed in the middle section of the machine base, a movable milling device for external milling of workpieces is provided on the truss, and tooling disc one and tooling disc two are respectively located on both sides of the truss and are rotatable.

[0005] Both tooling tray one and tooling tray two are provided with multiple rotatable internal expansion chucks, which are arranged circumferentially on tooling tray one and tooling tray two.

[0006] A moving device capable of moving the workpiece is provided between tooling tray one and tooling tray two.

[0007] A drilling device and a tapping device are sequentially arranged along the outer edge of the tooling disc;

[0008] The automated production line for machining motor housings also includes a loading line, a unloading line, and two robotic arms. The loading line and the unloading line are located on the outside of the machine base on both sides, and are used to load and unload materials in cooperation with tooling tray one and tooling tray two through the corresponding robotic arms.

[0009] The machine base is also equipped with a sensing device in the middle section, and the tooling plate one and tooling plate two are equipped with a plurality of positioning rings that are adapted to the internal expansion chuck and are positioned by the sensing device.

[0010] In the aforementioned automated production line for machining motor housings, the moving device includes a rotatable rotating seat, fixtures located at both ends of the rotating seat for clamping workpieces, and a drive mechanism for driving the rotating seat to rotate. The output end of the drive mechanism is connected to the middle end of the rotating seat. The fixtures are located at both ends of the rotating seat and the clamping tightness is controlled by a servo motor. An elastic buffer structure is provided between the fixtures and the rotating seat.

[0011] In the aforementioned automated production line for machining motor housings, the milling device cooperates with one of the internal expansion chucks on the tooling plate to form a milling station. When the tooling plate rotates, it is positioned by a positioning ring and a sensing device, and the workpiece is sequentially fed into the milling station. The internal expansion chuck located at the rear end of the milling station cooperates with the corresponding robot arm to form a loading station.

[0012] In the aforementioned automated production line for machining motor housings, under the control of the control system, a robot clamps and fixes the workpiece from the loading line onto the inner expansion chuck of tooling plate one. Tooling plate one rotates, causing the workpiece to move to the milling device. After machining, the workpiece is transferred to tooling plate two via a moving device, passes through the drilling device and tapping device in sequence, and is finally unloaded by the robot to the unloading line.

[0013] Compared with existing technologies, this automated production line for machining motor housings achieves continuous loading and unloading through the cooperation of robotic arms and assembly lines, reducing manual intervention. The positioning ring and sensing device ensure small alignment errors at the workstations. The fixtures can also be changed and the program adjusted according to different specifications of motor housings, thereby achieving efficient automation and high-precision machining. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the automated production line for machining the motor housing.

[0015] Figure 2 This is a partial structural diagram of the automated production line for machining the motor housing.

[0016] In the diagram, 1 is the machine base; 2 is the truss; 3 is the milling device; 4 is the tooling tray one; 5 is the tooling tray two; 6 is the drilling device; 7 is the tapping device; 8 is the feeding line; 9 is the unloading line; 10 is the robot arm; 11 is the sensing device; 12 is the positioning ring; 13 is the rotating seat; 14 is the fixture; and 15 is the drive mechanism. Detailed Implementation

[0017] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0018] like Figure 1 , Figure 2 As shown, this automated production line for machining motor housings includes a control system and a machine base 1. A fixed truss 2 is installed in the middle of the machine base 1. A movable milling device 3 for external milling of the workpiece is installed on the truss 2. The machine base 1 also has two rotatable tooling plates, a first tooling plate 4 and a second tooling plate 5, located on both sides of the truss 2. Both tooling plates 4 and 5 are equipped with multiple rotatable internal expansion chucks, which are circumferentially arranged on tooling plates 4 and 5. A moving device for moving the workpiece is provided between tooling plates 4 and 5. A drilling device 6 and a tapping device 7 are arranged sequentially along the outer edge of the tooling plate 2 5. The automated production line for machining the motor housing also includes a feeding line 8, a discharging line 9, and two robotic arms 10. The feeding line 8 and the discharging line 9 are located on the outer sides of the machine base 1, respectively, and are used to feed and unload materials in cooperation with the tooling plate 1 4 and the tooling plate 2 5 through the corresponding robotic arms 10. A sensing device 11 is also provided in the middle section of the machine base 1. Multiple positioning rings 12 are provided on the tooling plate 1 4 and the tooling plate 2 5, which are adapted to the internal expansion chuck and are positioned by the sensing device 11.

[0019] By cooperating with the production line, the robotic arm 10 enables continuous loading and unloading, reducing manual intervention. The positioning ring 12 and the sensing device 11 ensure small alignment errors at the workstations. The fixture 14 can also be changed and the program adjusted according to different specifications of motor housings, thereby achieving efficient automation and high-precision processing.

[0020] The moving device includes a rotatable rotating seat 13, a clamp 14 located at both ends of the rotating seat 13 for clamping the workpiece, and a drive mechanism 15 for driving the rotating seat 13 to rotate. The output end of the drive mechanism 15 is connected to the middle end of the rotating seat 13. The clamp 14 is located at both ends of the rotating seat 13 and the clamping tightness is controlled by a servo motor. An elastic buffer structure is provided between the clamp 14 and the rotating seat 13.

[0021] The milling device 3 cooperates with one of the internal expansion chucks on the tooling plate 4 to form a milling station. When the tooling plate 4 rotates, it is positioned by the positioning ring 12 and the sensing device 11, and the workpiece is sequentially sent into the milling station. The internal expansion chuck located at the rear end of the milling station cooperates with the corresponding robot arm 10 to form a loading station.

[0022] Under the control of the control system, the robot arm 10 clamps and fixes the workpiece of the loading line 8 onto the inner expansion chuck of the tooling plate 1 4. The tooling plate 1 4 rotates and drives the workpiece to move under the milling device 3. After processing, the workpiece is transferred to the tooling plate 2 5 by the moving device, and then passes through the drilling device 6 and the tapping device 7 in sequence. Finally, the robot arm 10 unloads the workpiece to the unloading line 9.

[0023] Working principle

[0024] Loading and unloading process: The robot arm 10 picks up the workpiece from the loading line 8 and fixes it in the inner expansion chuck of the working plate 1; after processing, the moving device transfers the workpiece to the working plate 2, and finally the robot arm 10 unloads it.

[0025] Multi-station machining: Workbench 1 is responsible for milling, while workbench 2 sequentially completes drilling and tapping, switching between workstations by rotating.

[0026] Precise positioning: The positioning ring 12 works in conjunction with the sensing device 11 to ensure that each internal expansion chuck is precisely aligned with the processing position when rotating.

[0027] Buffer protection: The elastic structure of clamp 14 reduces clamping impact, and the servo motor controls the clamping force to prevent workpiece damage.

[0028] The workpiece is a pre-finished product with pre-machined end faces, external turning, and internal holes. The production line completes the milling, drilling, and tapping processes for the motor housing.

[0029] Robotic arm 10 picks up pre-finished workpieces from the upstream loading line 8 and fixes them to the inner expansion chuck of worktable one. Worktable one rotates to the milling station, where the milling device 3 and the inner expansion chuck work together to complete the outer surface machining. The moving device then transfers the workpiece to worktable two for drilling and tapping. Robotic arm 10 picks up the finished product and places it on the unloading line 9 for quality inspection. The processing time per piece is reduced from 15 minutes in the traditional process to 6 minutes, and the yield rate is increased to 98%.

[0030] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0031] Although this document uses a lot of technical terms, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this invention; interpreting them as any kind of additional limitation would contradict the spirit of this invention.

Claims

1. An automated production line for the machining of motor housings, comprising a control system and a machine bed (1), characterized in that, The middle section of the machine base (1) is provided with a fixed truss (2), and a milling device (3) for external milling of workpieces is movably arranged on the truss (2). The machine base (1) is further provided with a rotatable tooling disc one (4) and a rotatable tooling disc two (5) respectively arranged on the two sides of the truss (2); A plurality of rotatable internal expansion chucks are arranged on the tooling disc one (4) and the tooling disc two (5); A moving device is arranged between the tooling disc one (4) and the tooling disc two (5) to move the workpiece; A drilling device (6) and a tapping device (7) are sequentially arranged along the outer edge of the tooling disc two (5); The motor housing machining automatic production line further comprises a feeding assembly line (8), a discharging assembly line (9) and two mechanical arms (10). The feeding assembly line (8) and the discharging assembly line (9) are respectively arranged on the two sides of the machine base (1) and are connected with the tooling disc one (4) and the tooling disc two (5) through the corresponding mechanical arms (10) to feed and discharge workpieces. The middle section of the machine base (1) is further provided with an induction device (11), and a plurality of positioning rings (12) are arranged on the tooling disc one (4) and the tooling disc two (5) to match the internal expansion chucks and be positioned by the induction device (11).

2. A motor housing machining automated production line according to claim 1, characterized in that, The moving device comprises a rotatable rotating seat (13), clamps (14) arranged at the two ends of the rotating seat (13) to clamp workpieces, and a driving mechanism (15) for driving the rotating seat (13) to rotate. The output end of the driving mechanism (15) is in transmission connection with the middle end of the rotating seat (13). The clamps (14) are arranged at the two ends of the rotating seat (13) and are controlled by a servo motor to clamp workpieces. The clamps (14) and the rotating seat (13) are provided with an elastic buffer structure.

3. A motor housing machining automated production line according to claim 1, characterized in that, The milling device (3) cooperates with one of the internal expansion chucks on the tooling disc one (4) to form a milling station. When the tooling disc one (4) rotates, the workpiece is sequentially fed into the milling station through the positioning of the positioning ring (12) and the induction device (11). The internal expansion chuck at the rear end of the milling station cooperates with the corresponding mechanical arm (10) to form a feeding station.

4. The motor housing machining automated production line of claim 1, wherein, Under the control of the control system, the mechanical arm (10) clamps and fixes the workpiece on the internal expansion chuck of the tooling disc one (4) from the feeding assembly line (8). The tooling disc one (4) rotates to move the workpiece to the milling device (3). After the machining is completed, the workpiece is transferred to the tooling disc two (5) through the moving device, sequentially passes through the drilling device (6) and the tapping device (7), and is finally unloaded to the discharging assembly line (9) by the mechanical arm (10).

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