Punching die mechanism based on motor driving
Through the die mechanism driven by the servo motor, the screw assembly and sensor are used to solve the problems of frequent wear, unstable air supply and low efficiency of the traditional die mechanism, and high-precision and safe stamping processing are achieved.
Patent Information
- Application Number
- CN202422613417.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-10-29
AI Technical Summary
Traditional die mechanisms adopt the method of lower die fixing and upper die pressing, resulting in frequent mold wear, unstable air supply, high defect rate of stamping products and low processing efficiency.
The die punching mechanism driven by the servo motor is adopted. The rotating force of the servo motor is converted into linear motion force through the lead screw assembly, swing arm and lifting sliding plate, realizing the precise positioning of the moving die and stamping of the die, and combining the sensor to improve safety.
It improves the stability, accuracy and efficiency of the stamping process, reduces mold wear, enhances safety, and reduces processing time and product defect rate.
Smart Images
Figure CN223043430U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of punching die mechanisms, and particularly relates to a punching die mechanism driven by a motor. Background Art
[0002] Traditional punching die mechanisms all use the method of fixing the lower die and pressing down the upper die for stamping operations. The driving elements used are generally downward pressing cylinders, and the upper die is driven to press down by the downward pressing cylinders to achieve stamping of components. There are some drawbacks in this common setting. For example, since the stroke driven by the cylinder is fixed-distance, and the downward pressure is too large, it is easy to cause relatively large wear of the die in this regard and frequent replacement. In addition, the cylinder is driven by external air compressors for air supply, and usually there are many equipment that require air in the factory. This leads to the factory either equipping multiple air compressors or setting high-power air compressors. However, even so, there is still insufficient or unstable air supply, resulting in problems with the defective rate of stamped products. In addition, although the stamping driven by the cylinder has relatively strong pressure to a certain extent, the stroke of the punching die driven by the cylinder is fixed. This causes the punching die that does not need to rise to the top each time to undergo large-stroke movements, wasting processing efficiency. Summary of the Utility Model
[0003] In view of the prior art, the purpose of the utility model is to provide a punching mechanism driven by a motor, which can improve the stability, safety, precision and efficiency of the stamping process.
[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is: a punching die mechanism driven by a motor, including a power mechanism, a moving die driven by the power mechanism, and a fixed die fixedly arranged relative to the moving die. The power mechanism includes a fixed column, a mounting plate, a servo motor and a transmission component. The transmission component is used to convert and transmit the power of the servo motor to the moving die to make it move relative to the fixed die. The transmission component includes a lead screw component, several swing arms, a lifting sliding plate and a guide post. The lead screw component is used to convert the rotational force of the servo motor into a linear motion force. The swing arm is connected to the lead screw component to conduct its linear motion force to the lifting sliding plate. The lifting sliding plate is connected to the moving die.
[0005] As a further setting of the above solution, the lead screw component includes a rotating lead screw and a lifting nut. The output shaft of the servo motor is connected with a rotating wheel, a transmission belt and a rotating wheel fixed to the rotating lead screw.
[0006] As a further setting of the above solution, the swing arm includes a hinged arm, a bridging arm and a connecting rod. The hinged arm is hinged with the lifting nut. One end of the bridging arm is hinged to the mounting plate, and the other end is hinged to the bridging arm and one end of the connecting rod. The other end of the connecting rod is hinged to the lifting sliding plate.
[0007] As a further setting of the above solution, both ends of the guide post are respectively fixed on the mounting plate and the fixed mold tabletop, and it is arranged in parallel with the fixed post. At least two guide posts penetrate through the lifting sliding plate to guide and limit the lifting of the lifting sliding plate. A connecting post is arranged at the bottom of the lifting sliding plate to connect the upper end of the moving mold.
[0008] Beneficial effects: By adopting a servo motor in cooperation with structures such as a lead screw, a connecting rod, and a swing arm, the utility model converts the rotational force of the servo motor into the linear motion force required for stamping of the punching die, thereby completing the punching and die-separating processing requirements of the punching die. Compared with the prior art, the servo motor adopted in this embodiment has more stable working performance, higher precision, and can provide more accurate positioning and safe protection. In some working conditions, it can also improve the working efficiency of processing, and has good practical prospects. Description of the Drawings
[0009] Figure 1 It is a front three-dimensional structure schematic diagram of the punching die mechanism of the present utility model.
[0010] Figure 2 It is a back three-dimensional structure schematic diagram of the punching die mechanism of the present utility model.
[0011] Figure 3 It is a front schematic diagram of the punching die mechanism of this embodiment
[0012] Reference numerals: 1, power mechanism; 10, tabletop; 11, fixed post; 12, mounting plate; 2, servo motor; 21, output shaft; 22, runner; 23, transmission belt; 24, rotating wheel; 3, transmission component; 31, lead screw component; 311, rotating lead screw; 312, lifting nut; 32, swing arm; 321, hinged arm; 322, bridging arm; 323, connecting rod; 33, lifting sliding plate; 331, connecting post; 34, guide post; 8, moving mold; 9, fixed mold. Detailed Embodiments
[0013] In order to be able to more clearly understand the above-mentioned objects, features, and advantages of the present utility model, the present utility model will be further described in detail below with reference to the drawings and specific embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.
[0014] Such as Figures 1-3A die-casting die mechanism based on motor drive is shown, which includes a power mechanism 1 arranged on a table 10, a moving die 8 driven by the power mechanism 1, and a fixed die 9 fixed to the table 10 by bolts. The power mechanism 1 includes a fixed column 11 fixedly arranged on the table 10, a mounting plate 12, a servo motor 2, and a transmission assembly 3. The transmission assembly 3 is used to convert and transmit the power of the servo motor 2 to the moving die 8 to make it move relative to the fixed die 9. The transmission assembly 3 includes a lead screw assembly 31, several swing arms 32, a lifting sliding plate 33, and guide columns 34. The lead screw assembly 31 is used to convert the rotational force of the servo motor 2 into a linear motion force. The swing arm 32 is connected to the lead screw assembly 31 to conduct its linear motion force to the lifting sliding plate 33. The lifting sliding plate 33 is connected to the moving die 8.
[0015] As a further setting of the above solution, the lead screw assembly 31 includes a rotating lead screw 311 and a lifting nut 312. The output shaft 21 of the servo motor 2 is connected with a rotating wheel 22, a transmission belt 23, and a rotating wheel 24 fixed to the rotating lead screw 311.
[0016] As a further setting of the above solution, the swing arm 32 includes a hinge arm 321, a bridging arm 322, and a connecting rod 323. The hinge arm 321 is hinged to the lifting nut 312. One end of the bridging arm 322 is hinged to the mounting plate 12, and the other end is hinged to one end of the bridging arm 322 and the connecting rod 323. The other end of the connecting rod 323 is hinged to the lifting sliding plate 33.
[0017] As a further setting of the above solution, both ends of the guide column 34 are respectively fixed to the mounting plate 12 and the fixed table surface of the fixed die 9, and it is arranged parallel to the fixed column 11. At least two guide columns 34 penetrate through the lifting sliding plate 33 to guide and limit the lifting of the lifting sliding plate 33. A connecting column 331 is arranged at the bottom of the lifting sliding plate 33 and is connected to the upper end of the moving die 8.
[0018] The principle of the punching die mechanism in this embodiment is as follows. When the equipment runs, after the servo motor 2 starts, the output shaft 21 and the fixed runner 22 rotate, driving the transmission belt 23 and the rotating wheel 24 to rotate synchronously (it should be noted that a gear and toothed belt structure can be adopted between the transmission belt 23, the runner 22 and the rotating wheel 24 here, and the diameters of the runner 22 and the rotating wheel 24 can be adjusted based on actual requirements). As a result, the rotating lead screw 311 axially fixed to the relative mounting plate 12 rotates, causing the lifting nut 312 thereon to generate a lifting action under the rotation of the rotating lead screw 311. One end of the articulated arm 321 of the swing arm 32 is hinged to the lifting nut 312, and under the restriction that the other end of the bridging arm 322 is hinged to the mounting plate 12, the articulated arm 321 is driven by the lifting nut 312 to push the bridging arm 322 to swing. Further, the swing of the bridging arm 322 drives the connecting rod 323 also hinged thereto to swing. Since the other end of the connecting rod 323 is hinged to the lifting sliding plate 33, and the lifting sliding plate 33 is restricted by the guide post 34 to only perform lifting activities, therefore, under the drive of the swing of the bridging arm 322, the connecting rod 323 can only push the lifting sliding plate 33 to perform a lifting action, so that the moving die 8 connected to the lower part of the lifting sliding plate 33 through the connecting column 331 approaches or moves away from the fixed die 9, realizing mold closing and mold opening, and performing stamping processing on the product. It should be noted that through the articulated conduction of multiple swing arms 32, after the force feedback by the moving die 8 after mold closing is guided by the swing arms 32, most of the force is conducted to the mounting plate 12, with minimal impact on the lead screw assembly 31, reducing the wear between the lifting nut 312 and the rotating lead screw 311. In addition, referring to the control principle of the servo motor 2 in the prior art, compared with cylinder drive, the servo motor 2 adopted in this embodiment as the power source drive can, through the control of the controller, enable the moving die 8 of this embodiment to stay at any height within the stroke range. Based on this effect, according to the actual working conditions design, when processing the product, it is not necessary for the moving die 8 to be lifted to the limit and then pressed down again during the automated rapid stamping process, which can save the time of the stroke path of the moving die 8 and improve work efficiency. In addition, compared with the existing cylinder structure, the punching die mechanism of this embodiment can be provided with sensors around the moving die and the fixed die. Once a foreign object or a human hand reaches in, the servo motor 2 is controlled to stop rotating through rapid signal feedback, which can improve the safety of processing and also reduce the damage of the mold caused by large foreign objects falling into the mold equipment without stopping stamping.
[0019] Obviously, those skilled in the art can make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.
Claims
1. A die mechanism based on motor drive, comprising a power mechanism (1), a movable die (8) driven by the power mechanism (1), and a fixed die (9) fixedly arranged relative to the movable die (8), characterized in that: The power mechanism (1) comprises a fixed column (11), a mounting plate (12), a servo motor (2) and a transmission assembly (3); the transmission assembly (3) is used to convert the power of the servo motor (2) to the movable mold (8) so that the movable mold (8) moves relative to the fixed mold (9); the transmission assembly (3) comprises a screw assembly (31), a plurality of swing arms (32), a lifting sliding plate (33) and a guide column (34); the screw assembly (31) is used to convert the rotational force of the servo motor (2) into a linear motion force; the swing arm (32) is connected to the screw assembly (31) to transmit its linear motion force to the lifting sliding plate (33); and the lifting sliding plate (33) is connected to the movable mold (8).
2. A motor-driven die mechanism according to claim 1, characterized in that: The screw assembly (31) comprises a rotating screw (311) and a lifting nut (312); the output shaft (21) of the servo motor (2) is connected to a rotating wheel (22), a transmission belt (23), and a rotating wheel (24) fixed to the rotating screw (311).
3. A motor-driven die mechanism according to claim 2, characterized in that: The swing arm (32) comprises an articulated arm (321), a bridging arm (322) and a connecting rod (323); the articulated arm (321) is hingedly connected to the lifting nut (312); one end of the bridging arm (322) is hingedly connected to the mounting plate (12); the other end of the bridging arm (322) is hingedly connected to one end of the bridging arm (322) and the connecting rod (323); the other end of the connecting rod (323) is hingedly connected to the lifting sliding plate (33).
4. The motor-driven die mechanism according to claim 1, characterized in that: The two ends of the guide column (34) are respectively fixed to the mounting plate (12) and the fixed table of the fixed mold (9), and are arranged in parallel with the fixed column (11). The guide column (34) is provided with at least two connecting rods penetrating the lifting sliding plate (33) for guiding and limiting the lifting of the lifting sliding plate (33). The bottom of the lifting sliding plate (33) is provided with a connecting column (331) connected to the upper end of the movable mold (8).