Copper shell feeding mechanism of commutator pressing equipment

Abstract

The utility model discloses a copper shell feeding mechanism of commutator pressing equipment, which comprises a framework and a lead screw lifting module installed on one side of the top end of the framework, a shell supporting disc is installed at the movable end of the lead screw lifting module, three supporting shafts are rotatably installed at the top end of the framework at equal intervals, the three supporting shafts are located on the outer side of the shell supporting disc, and the lead screw lifting module is connected with the shell supporting disc. And a planetary gear synchronous clamping structure for driving the three supporting shafts to synchronously rotate is mounted on the top wall of the framework. The shell supporting disc serves as a supporting structure, a plurality of stacked disc-shaped copper shell workpieces can be effectively supported, the shell supporting disc prevents the workpieces from inclining or collapsing due to unbalanced gravity centers by dispersing pressure applied to the workpieces, synchronous movement of the three clamping rods is achieved through combination of the rotary driving unit and the planetary gear, and the clamping efficiency is improved. When the clamping rods are close to the central axis of the stacked body, clamping force is evenly distributed, and all workpieces are effectively stabilized on the shell supporting disc.

Description

Technical Field

[0001] The utility model relates to the technical field of commutator pressing, in particular to a copper shell feeding mechanism of commutator pressing equipment. Background Art

[0002] The copper shell feeding mechanism of the commutator pressing equipment plays a crucial role in the production process. Its primary function is to automate the loading of copper shells, ensuring that each shell is efficiently and stably fed into the pressing equipment for subsequent processing. The copper shell feeding mechanism primarily consists of a hopper, a vibrating conveyor, a guide rail system, a positioning device, and a control system. The hopper is typically funnel-shaped and uses gravity to release the copper shells one by one onto the vibrating conveyor. The vibrating conveyor is the core of the entire system, propelling the copper shells forward along the guide rail system by adjusting the vibration frequency and amplitude. The guide rail system guides the copper shells into the pressing equipment, ensuring their stability and directionality during movement. Before the copper shells reach the pressing equipment entrance, a positioning device ensures their accurate posture and position, typically using a photoelectric sensor for detection. The entire process is coordinated and managed by the control system to achieve automated and efficient operation; for example, the copper shell feeding mechanism of a commutator pressing device disclosed in the authorization announcement number CN218102005U includes a pre-installed plate for placing the copper shell, a top pressing assembly for pressing the copper shell in the pre-installed plate into the middle mold, and a pushing assembly for driving the pre-installed plate to move horizontally in or out of the top pressing assembly. The pre-installed plate is provided with a pre-installed hole for the copper shell to extend into. The top pressing assembly includes a mounting frame, a pressing plate vertically slidingly arranged on the mounting frame, a plurality of pressing rods fixedly arranged above the pressing plate, and a pushing assembly for driving the pre-installed plate to move horizontally in or out of the top pressing assembly. The driving part that moves the pressure plate vertically can press the copper shell into the middle mold through the pressure rod during loading, which has the effect of low labor intensity. However, during the use of this technical solution, the disc-shaped workpiece to be pressed and formed into the copper shell needs to be placed on the pre-installed plate. However, the processing specifications of different batches of copper shells and disc-shaped workpieces need to be changed according to the specifications of the commutator. When several disc-shaped workpieces are stacked up in sequence, it is difficult for the several disc-shaped workpieces in the stacked state to remain stable, that is, the center of gravity of the entire stack body deviates from the center, which makes it difficult for subsequent loading actions to be carried out stably, and it is easy for the stack to collapse or the workpiece to get stuck. Utility Model Content

[0003] The purpose of the present utility model is to provide a copper shell feeding mechanism for a commutator pressing device, which uses a shell supporting plate to support multiple disc-shaped copper shell workpieces in a superimposed state, and a rotating drive unit and a planetary gear synchronous clamping structure drive three clamping rods to synchronously approach the central axis of the stacking body until the three clamping rods stably support the stacking body and keep it stable, and then the shell supporting plate and the stacking body are driven upward by the screw lifting module, and the loading is carried out by a dual-axis robotic arm to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the utility model provides the following technical solution: a copper shell feeding mechanism of a commutator pressing device, including a framework and a lead screw lifting module installed on one side of the top end of the framework, and a shell supporting disc is installed at the movable end of the lead screw lifting module. Three support shafts are rotatably installed at equal intervals on the top end of the framework. The three support shafts are located outside the shell supporting disc. A planetary gear synchronous clamping structure for driving the three support shafts to rotate synchronously is installed on the top wall of the framework. Three clamping rods that can approach the vertical central axis direction of the shell supporting disc are installed at the movable end of the planetary gear synchronous clamping structure. A rotary driving unit for driving the planetary gear synchronous clamping structure to rotate is installed on one side of the surface of the framework. A double-axis robotic arm for picking up the workpiece on the top end of the shell supporting disc is installed on the other side of the top end of the framework. A PLC controller is installed on one side of the surface of the framework. The output end of the PLC controller is electrically connected to the input ends of the lead screw lifting module, the double-axis robotic arm, and the rotary driving unit respectively.

[0005] Preferably, through holes for the support shafts to pass through are provided on the surface of the shell supporting disc.

[0006] Preferably, arc-shaped hollow grooves with vertically overlapping projection planes are provided on the surface of the shell supporting disc and the top end of the framework, and the clamping rods pass through the arc-shaped hollow grooves.

[0007] Preferably, the lead screw lifting module includes a vertical plate fixed on one side of the top end of the framework, a sliding table slidably installed on the outer wall of one side of the vertical plate, and a servo motor installed on the top wall of the framework. A threaded shaft is installed at the output end of the servo motor, and a nut pair is installed at one end of the surface of the threaded shaft. The outer wall of one side of the nut pair is fixedly connected to the outer wall of one side of the sliding table, and the outer wall of the other side of the sliding table is fixedly connected to the outer wall of one side of the shell supporting disc.

[0008] Preferably, the planetary gear synchronous clamping structure includes a driving gear ring rotatably installed on the top wall of the framework and a driven gear fixed at the bottom end of the support shaft. The driving gear ring and the driven gear are meshed with each other, and the bottom end of the clamping rod is fixedly connected to the top end of the driven gear.

[0009] Preferably, the rotary driving unit includes a stepping motor installed on one side of the surface of the framework and a rubber wheel installed at the output end of the stepping motor. The outer wall of the rubber wheel is in contact with the outer wall of the driving gear ring.

[0010] Preferably, the clamping rod is made of a stainless steel component.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: The copper shell feeding mechanism of the commutator pressing device is provided with a shell supporting disk, a planetary gear synchronous clamping structure, clamping rods and other cooperating structures. As a supporting structure, the shell supporting disk can effectively support a plurality of stacked disk-shaped copper shell workpieces. By dispersing the pressure applied to each workpiece, the shell supporting disk prevents the workpieces from tilting or collapsing due to unbalanced center of gravity. The combination of the rotation drive unit and the planetary gear realizes the synchronous movement of the three clamping rods. When the clamping rods approach the central axis of the stacked body, the clamping force is evenly distributed, effectively fixing all the workpieces on the shell supporting disk. This greatly improves the clamping efficiency and reliability, and prevents the workpieces from loosening or falling off due to improper clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is the front view structural schematic diagram of the present utility model;

[0013] Figure 2 is the side view structural schematic diagram of the present utility model;

[0014] Figure 3 is the three-dimensional structural schematic Figure 1 ;

[0015] Figure 4 is the three-dimensional structural schematic Figure 2 ;

[0016] Figure 5 is the three-dimensional structural schematic Figure 3 .

[0017] In the figure: 1, skeleton; 2, dual-axis robotic arm; 3, screw rod lifting module; 4, shell supporting disk; 401, arc-shaped hollow groove; 402, through hole; 5, PLC controller; 6, support shaft; 7, rotation drive unit; 701, stepper motor; 702, rubber wheel; 8, planetary gear synchronous clamping structure; 801, driving gear ring; 802, driven gear; 9, clamping rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments of the present utility model belong to the scope of protection of the present utility model.

[0019] Please refer to Figures 1-5, an embodiment provided by the present utility model: a copper shell feeding mechanism of a commutator pressing device, including a skeleton 1 and a screw rod lifting module 3 installed on one side of the top end of the skeleton 1, and a shell supporting disc 4 is installed at the movable end of the screw rod lifting module 3. Three supporting shafts 6 are rotatably installed at equal intervals on the top end of the skeleton 1. The three supporting shafts 6 are located outside the shell supporting disc 4. A planetary gear synchronous clamping structure 8 for driving the three supporting shafts 6 to rotate synchronously is installed on the top wall of the skeleton 1. Three clamping rods 9 that can approach the vertical central axis direction of the shell supporting disc 4 are installed at the movable end of the planetary gear synchronous clamping structure 8. A rotary driving unit 7 for driving the planetary gear synchronous clamping structure 8 to rotate is installed on one side of the surface of the skeleton 1. A dual-axis robotic arm 2 for picking up the workpiece on the top end of the shell supporting disc 4 is installed on the other side of the top end of the skeleton 1. A PLC controller 5 is installed on one side of the surface of the skeleton 1. The output end of the PLC controller 5 is electrically connected to the input ends of the screw rod lifting module 3, the dual-axis robotic arm 2, and the rotary driving unit 7 respectively;

[0020] Through holes 402 for the supporting shafts 6 to pass through are provided on the surface of the shell supporting disc 4. Arc-shaped hollow grooves 401 with vertically overlapping projection planes are provided on the surface of the shell supporting disc 4 and the top end of the skeleton 1. The clamping rods 9 pass through the arc-shaped hollow grooves 401. The setting of the through holes 402 enables the screw rod lifting module 3 to normally drive the shell supporting disc 4 to lift and slide, and the rotation action of the supporting shafts 6 will not affect the shell supporting disc 4;

[0021] The screw rod lifting module 3 includes a vertical plate fixed on one side of the top end of the skeleton 1, a sliding table slidably installed on the outer wall of one side of the vertical plate, and a servo motor installed on the top wall of the skeleton 1. The output end of the servo motor is installed with a threaded shaft. One end of the surface of the threaded shaft is installed with a nut pair. The outer wall of one side of the nut pair is fixedly connected to the outer wall of one side of the sliding table. The outer wall of the other side of the sliding table is fixedly connected to the outer wall of one side of the shell supporting disc 4. The planetary gear synchronous clamping structure 8 includes a driving gear ring 801 rotatably installed on the top wall of the skeleton 1 and a driven gear 802 fixed at the bottom end of the supporting shaft 6. The driving gear ring 801 and the driven gear 802 are meshed with each other. The bottom end of the clamping rod 9 is fixedly connected to the top end of the driven gear 802;

[0022] The rotary driving unit 7 includes a stepping motor 701 installed on one side of the surface of the skeleton 1 and a rubber wheel 702 installed at the output end of the stepping motor 701. The outer wall of the rubber wheel 702 abuts against the outer wall of the driving gear ring 801. The clamping rod 9 is made of a stainless steel component. When using the three clamping rods 9 to stack the bodies synchronously and stably, the staff turns on the stepping motor 701 in the rotary driving unit 7 through the PLC controller 5 for work. Then the stepping motor 701 actively drives the rubber wheel 702 to rotate. Since the rubber wheel 702 and the driving gear ring 801 are in contact with each other and there is friction between them, the stepping motor 701 drives the driving gear ring 801 to rotate through the rubber wheel 702;

[0023] The driving gear ring 801 drives the three driven gears 802 to rotate synchronously. Then, the clamping rod 9 at the top of the driven gear 802 swings around the support shaft 6 until the clamping rod 9 slides into the inside of the support shell plate 4 through the arc-shaped hollow groove 401 and gradually approaches the vertical central axis of the stacked body, thereby effectively stabilizing all the workpieces on the support shell plate 4 and avoiding the situation of stack collapse or workpiece jamming.

[0024] When the embodiment of the present application is in use, first, the staff stacks a plurality of disk-shaped workpieces to be fed onto the support shell plate 4, which can stably support a plurality of disk-shaped workpieces to ensure that the workpieces will not tilt or collapse during subsequent operations. At this time, the plurality of disk-shaped workpieces are stacked upward in sequence to form a stacked body, which is located between the three support shafts 6. Then, the staff starts the rotary drive unit 7 to work through the PLC controller 5. The rotary power of the rotary drive unit 7 is transmitted to the support shaft 6 through the planetary gear synchronous clamping structure 8, so that the three clamping rods 9 approach the vertical central axis direction of the stacked body synchronously until the clamping rods 9 contact the arc-shaped outer wall of the stacked body, enabling the clamping rods 9 to uniformly apply a clamping force to ensure the stability of the disk-shaped workpieces during the clamping process until the workpieces are completely clamped. At this time, the stacked body maintains a vertical and stable posture. After the clamping is completed, the lead screw lifting module 3 starts to act. The function of this module is to move the support shell plate 4 and the clamped disk-shaped workpieces upward as a whole. The PLC controller 5 precisely controls the lifting of the lead screw according to the set height and speed to ensure that the workpieces will not have severe vibrations or tilts during the upward movement. When the support shell plate 4 and the disk-shaped workpieces are lifted to the predetermined height, the dual-axis robotic arm 2 is activated. The flexibility of the robotic arm enables it to move freely on the X-axis and Z-axis in three-dimensional space, quickly grab and place the disk-shaped workpieces. During this process, the PLC controller 5 issues instructions to control the movement trajectory and grabbing action of the dual-axis robotic arm 2 to ensure that the workpieces can be accurately placed in the subsequent processing area. Once the dual-axis robotic arm 2 successfully places the disk-shaped workpieces at the designated position, it will actively release the workpieces to ensure that they fall steadily on the target position. At this time, the action of the dual-axis robotic arm 2 is reset to prepare for the next feeding operation.

Claims

1. A copper shell feeding mechanism for a commutator pressing device, characterized in that: It includes a framework (1) and a lead screw lifting module (3) installed on one side of the top end of the framework (1). A shell support plate (4) is installed at the movable end of the lead screw lifting module (3). Three support shafts (6) are rotatably installed at equal intervals at the top end of the framework (1). The three support shafts (6) are located outside the shell support plate (4). A planetary gear synchronous clamping structure (8) for driving the three support shafts (6) to rotate synchronously is installed on the top wall of the framework (1). Three clamping rods (9) that can approach the vertical central axis direction of the shell support plate (4) are installed at the movable end of the planetary gear synchronous clamping structure (8). A rotation driving unit (7) for driving the planetary gear synchronous clamping structure (8) to rotate is installed on one side of the surface of the framework (1). A dual-axis robotic arm (2) for picking up the workpiece at the top end of the shell support plate (4) is installed on the other side of the top end of the framework (1). A PLC controller (5) is installed on one side of the surface of the framework (1). The output end of the PLC controller (5) is electrically connected to the input ends of the lead screw lifting module (3), the dual-axis robotic arm (2), and the rotation driving unit (7).

2. The copper shell feeding mechanism of a commutator pressing device according to claim 1, characterized in that: Through holes (402) for the support shafts (6) to pass through are provided on the surface of the shell support plate (4).

3. The copper shell feeding mechanism of a commutator pressing device according to claim 2, characterized in that: Arc-shaped hollow grooves (401) with vertically overlapping projection planes are provided on the surface of the shell support plate (4) and the top end of the framework (1). The clamping rods (9) pass through the arc-shaped hollow grooves (401).

4. The copper shell feeding mechanism of a commutator pressing device according to claim 1, characterized in that: The lead screw lifting module (3) includes a vertical plate fixed to one side of the top end of the framework (1), a sliding table slidably installed on the outer wall of one side of the vertical plate, and a servo motor installed on the top wall of the framework (1). A threaded shaft is installed at the output end of the servo motor. A nut pair is installed at one end of the surface of the threaded shaft. The outer wall of one side of the nut pair is fixedly connected to the outer wall of one side of the sliding table. The outer wall of the other side of the sliding table is fixedly connected to the outer wall of one side of the shell support plate (4).

5. The copper shell feeding mechanism of a commutator pressing device according to claim 1, characterized in that: The planetary gear synchronous clamping structure (8) includes a driving gear ring (801) rotatably installed on the top wall of the framework (1) and a driven gear (802) fixed to the bottom end of the support shaft (6). The driving gear ring (801) and the driven gear (802) are meshed with each other. The bottom end of the clamping rod (9) is fixedly connected to the top end of the driven gear (802).

6. The copper shell feeding mechanism of a commutator pressing device according to claim 5, characterized in that: The rotation driving unit (7) includes a stepping motor (701) installed on one side of the surface of the framework (1) and a rubber wheel (702) installed at the output end of the stepping motor (701). The outer wall of the rubber wheel (702) is in contact with the outer wall of the driving gear ring (801).

7. The copper shell feeding mechanism of a commutator pressing device according to claim 5, characterized in that: The clamping rod (9) is made of a stainless steel component.

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