Servo press dynamic balancing device

Abstract

The utility model discloses a kind of servo press dynamic balancing device, a kind of servo press dynamic balancing device includes crankshaft, rotation is arranged in press frame;First journal, in the middle part of crankshaft;And second journal, distribution is arranged in the two sides of journal, the first axle diameter is connected with the dynamic balance slider by dynamic balance connecting rod above, the second journal is connected with press slider by crank below.The first journal and dynamic balance slider form reverse motion system by connecting rod, when press slider is punched downward, dynamic balance slider accurately moves upward, real-time offset alternating inertia force, the machine body pitch vibration problem when traditional press high-speed operation is optimized.Dynamic balance slider is integrated in press top, compared with traditional double-side balance structure setting, space reduction is occupied, support journal and crankshaft integration design further compress installation space, meet compact production line layout demand.

Description

Technical Field

[0001] This utility model relates to the field of press technology, and in particular to a servo press motor balancing device. Background Technology

[0002] As a core piece of equipment in the metal forming field, the dynamic balancing performance of high-speed presses directly affects processing accuracy, equipment lifespan, and operational stability. Existing patent CN201520755353.2 discloses a "dynamic balancing device for a high-speed press," but the flywheel and balance weight require significant space, making it difficult to apply to high-speed presses. Meanwhile, traditional mechanical presses generally use fixed counterweights or symmetrical slider structures to achieve inertial force balance, but these have significant drawbacks: insufficient dynamic response; the fixed counterweight can only offset static inertial forces, and under high-speed stamping conditions, it cannot balance the alternating inertial torque generated by the variable speed motion of the slider in real time, leading to severe machine vibration; furthermore, the flywheel structure occupies a large space, significantly increasing the lateral dimensions of the equipment and restricting the layout of compact production lines. Utility Model Content

[0003] This invention addresses the shortcomings of existing technologies by providing a servo pressure motorized balancing device.

[0004] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method: A servo pressure dynamic balancing device includes a crankshaft rotatably mounted in the press frame; a first journal located in the middle of the crankshaft; and a second journal distributed on both sides of the journal. The first journal is connected to the dynamic balancing slider above the crankshaft via a dynamic balancing connecting rod, and the second journal is connected to the press slider below the crank via a crank.

[0005] In the above scheme, preferably, the press frame is provided with guide columns, and the dynamic balancing link is slidably disposed on the guide columns.

[0006] In the above scheme, preferably, the top of the dynamic balancing link is rotatably connected to the dynamic balancing slider.

[0007] In the above scheme, preferably, the crankshaft includes a plurality of support journals, which are rotatably connected to the press frame.

[0008] In the above scheme, it is preferred that synchronous servo motors are provided at both ends of the crankshaft.

[0009] In the above scheme, preferably, the servo motor includes a connector, the connector includes several flat keys, and the flat keys are embedded in the keyways on the crankshaft.

[0010] In the above scheme, preferably, an elastic plate is provided on one side of the keyway, and the elastic plate is used to buffer the crankshaft.

[0011] In the above scheme, preferably, a placement groove for a matching elastic plate is provided on one side of the keyway, and the placement groove is used to install the elastic plate.

[0012] The beneficial effects of this utility model are: by forming a reverse motion system between the first journal and the dynamic balance slider through the connecting rod, when the press slider punches downward, the dynamic balance slider moves upward precisely, which cancels the alternating inertial force in real time and optimizes the problem of machine body pitch vibration when the traditional press is running at high speed.

[0013] The dynamic balancing slider is integrated into the top of the press, which reduces the space occupied compared to the traditional double-sided balancing structure. The integrated design of the support journal and crankshaft further reduces the installation space, meeting the needs of compact production line layout. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the dynamic balancing structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the internal structure of the first dynamic equilibrium state of this utility model.

[0016] Figure 3 This is a schematic diagram of the internal structure of the second state of equilibrium of this utility model.

[0017] Figure 4 for Figure 3 A sectional view along the AA direction.

[0018] Figure 5 for Figure 4 Enlarged view of point B.

[0019] Figure 6 This is a schematic diagram of the crankshaft of this utility model.

[0020] Figure 7 This is a schematic diagram of the overall design of this utility model. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments: See below Figures 1-7 A servo pressure dynamic balancing device includes a crankshaft 1 and a dynamic balancing slider 6.

[0022] Furthermore, the crankshaft 1 is provided with a support journal 10, which is horizontally rotatably mounted within the press frame 4 to ensure that the crankshaft 1 can rotate stably and at high speed on the press frame 4. Further, the crankshaft 1 includes a first journal 2 and second journals 3 symmetrically distributed on both sides thereof. Both the first and second journals are eccentrically positioned on the crankshaft 1. In particular, the eccentric directions of the first and second journals are opposite.

[0023] The first journal 2 is connected to the dynamic balancing slider 6 via a dynamic balancing connecting rod 5. Specifically, the dynamic balancing slider 6 is slidably disposed above the press. Two sets of guide posts 9 are disposed above the press, and the guide posts 9 are perpendicular to the press frame 4 to ensure that the dynamic balancing slider 6 performs linear reciprocating motion. At the same time, a dynamic balancing connecting rod 5 is disposed between the dynamic balancing slider 6 and the first journal. The bottom of the dynamic balancing connecting rod 5 is connected to the first journal. When the crankshaft 1 rotates, it drives the rotation of the dynamic balancing connecting rod 5. Moreover, the top of the dynamic balancing connecting rod 5 is rotatably connected to the top of the dynamic balancing slider 6 to adapt to the changes in the balancing connecting rod when the crankshaft 1 rotates.

[0024] Furthermore, the second journal 3 is connected to the press slide 8 via the crank 7 below. The second shaft diameter is symmetrically arranged on both sides of the first shaft diameter relative to the first shaft diameter to achieve stable driving of the press slide 8 to perform stamping operations. When the press slide 8 closes the mold downwards, the first shaft diameter acts on the dynamic balance block to achieve smooth operation of the press slide 8. At the same time, the dynamic balance block 6 is located at the center of the crankshaft 1 and above the press frame 4 to reduce the usable space.

[0025] A synchronous servo motor is connected to each end of the crankshaft 1, and the motor output shaft is linked to the crankshaft 1 via a connector 11. The connector 11 and the crankshaft 1 are connected by a flat key 12 and a keyway 13. Specifically, several flat keys 12 are provided at the end of the crankshaft 1, and these flat keys 12 are embedded in the keyway 13 of the connector 11 to achieve torque transmission and enable the servo motor to continuously drive the crankshaft 1 in one direction. At the same time, in order to achieve emergency stop and buffer the instantaneous impact when the crankshaft 1 is running, a placement groove 14 is provided on one side of the keyway 13, and a buffer plate is clamped in the groove. The buffer plate deforms and absorbs vibration when subjected to force.

[0026] During operation, the servo motor synchronously drives the crankshaft 1 to rotate, and the press slide 8 performs a stamping action under the drive of the crank 7. At the same time, the dynamic balancing slide 6 moves in the opposite direction through the dynamic balancing connecting rod 5 to counteract the inertial force generated by the press slide 8, achieving dynamic balance of the entire machine. The sliding constraint of the guide post 9 on the dynamic balancing connecting rod 5 further enhances the stability of the system, while the buffer design of the elastic plate 15 effectively reduces vibration and noise under high-speed operation, significantly improving the accuracy and lifespan of the equipment.

[0027] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A servo pressure dynamic balancing device, characterized in that: include The crankshaft (1) is rotatably mounted in the press frame (4); The first journal (2) is located in the middle of the crankshaft (1); as well as, The second journal (3) is distributed on both sides of the journal. The upper part of the first journal is connected to the dynamic balance slider (6) through the dynamic balance connecting rod (5), and the lower part of the second journal (3) is connected to the press slider (8) through the crank (7).

2. The servo pressure dynamic balancing device according to claim 1, characterized in that: The press frame (4) is provided with a guide post (9), and the dynamic balance connecting rod (5) is slidably disposed on the guide post (9).

3. The servo pressure dynamic balancing device according to claim 2, characterized in that: The top of the dynamic balancing link (5) is rotatably connected to the dynamic balancing slider (6).

4. The servo pressure dynamic balancing device according to claim 1, characterized in that: The crankshaft (1) includes several support journals (10), which are rotatably connected to the press frame (4).

5. A servo pressure dynamic balancing device according to claim 1, characterized in that: Synchronous servo motors are installed at both ends of the crankshaft (1).

6. A servo pressure dynamic balancing device according to claim 5, characterized in that: The servo motor includes a connector (11), which includes several flat keys (12) that are embedded in keyways (13) on the crankshaft (1).

7. A servo pressure dynamic balancing device according to claim 6, characterized in that: An elastic plate (15) is provided on one side of the keyway (13), and the elastic plate (15) is used to buffer the crankshaft (1).

8. A servo pressure dynamic balancing device according to claim 7, characterized in that: One side of the keyway (13) is provided with a placement groove (14) for matching the elastic plate (15), and the placement groove (14) is used to install the elastic plate (15).

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