A staggered stamping method using a split slider

Abstract

The present invention discloses a method for staggered stamping using a split slider, comprising a crankshaft, wherein a connecting rod for driving the movement of the split slider is sleeved on the middle section of the crankshaft, and each split slider is installed on the crankshaft at different angles using a connecting rod, so that each split slider performs staggered stamping on workpieces at different workstations, thereby reducing the stamping load during a single die punching and realizing asynchronous stamping of the workpiece. The crankshaft and the split slider can be connected by a connecting rod, one end of the connecting rod is sleeved and installed at different angular positions on the crankshaft, and the other end of the connecting rod is connected to the split slider. The method for staggered stamping using a split slider provided by the present invention reduces the power demand transmitted to the slider by the crankshaft per unit time, effectively disperses the peak load, and reduces the allowable load, which means that only a smaller driving force is needed to drive the movement of the crankshaft, thereby realizing the miniaturization of its drive system.

Description

Technical Field

[0001] The invention relates to the field of stamping machinery, and in particular to a peak-shifting stamping method using a split slider. Background Art

[0002] Traditional stamping mechanisms usually use the following two methods to improve work efficiency: one is to set up multiple-station die molds in the same stamping mechanism to stamp multiple workpieces at the same time; the other is to establish a multi-channel stamping production line and use multiple stamping mechanisms to complete the stamping work.

[0003] The existing invention CN201610379512.2 discloses a multi-station punching machine, including a workbench, a driving device, a frame and a punching cylinder installed on the frame. The bottom of the frame cooperates with the workbench, the driving device is connected to the frame, and a plurality of molds are arranged on the workbench. The driving device drives the frame to move along the workbench. The arrangement of the plurality of molds enables the punching machine to have a plurality of stations. When the punching machine is working, the driving device moves the punching cylinder between different stations, and the time for replacing the door panel can be reserved. When replacing the door panel, the punching cylinder can still be in working state, and the punching operation can be continuously performed, which effectively improves the work efficiency.

[0004] There is a utility model CN201620157832.9 that discloses a fully automatic stamping production line, including a feeding conveyor line, left and right material dividing robots, a left material dividing line and a right material dividing line; the left material dividing line includes a left forming machine, a first edge punching press, a first punching press, a riveting press, a multi-station rotary feeding rack and a left material pool, and the right material dividing line includes a right forming machine, a second edge punching press and a right material pool. The utility model performs dual-zone feeding by rotating the left and right feeding tables, and its feeding speed is fast. The positioning mechanism on the conveyor belt can realize the automatic positioning of the plate. The left and right material dividing robots can perform asynchronous material dividing on the plate, and can adjust the different speeds of each process of edge punching, punching and riveting slow and feeding and conveying fast. It realizes fully automated stamping production, and can control the conveying speed according to the plate feeding conveyor line. It is also provided with multiple material dividing lines to match the feeding speed of the feeding conveyor line, and is fully intelligent and automated production with high production efficiency and low cost.

[0005] The following problems exist in the prior art: during the operation of a multi-station stamping mechanism, the clamping time of multiple stations may overlap, which may lead to an increase in load peaks. In order to solve this problem, the design of the frame must be strengthened to make it more sturdy. However, this improvement may lead to an increase in the weight of the frame. In addition, the introduction of multi-channel stamping production lines will inevitably increase the complexity of the stamping mechanism and require additional steps to arrange the production of products on different production lines. All these factors together lead to an increase in the complexity of the overall structure, and the workflow becomes more complicated, which has an adverse effect on overall work efficiency and energy consumption. Summary of the invention

[0006] In order to solve the above problems, the present invention provides a staggered stamping method using a split slider, which adopts a multi-station asynchronous stamping method to disperse the stamping peak load, reduce the weight of the frame, and achieve lightweight and miniaturization of the mechanism.

[0007] In order to achieve the above-mentioned purpose, the present invention designs a staggered stamping method using a split slider, including a crankshaft, characterized in that a connecting rod connected to the split slider is sleeved in the middle section of the crankshaft, and the connecting rods of each split slider are installed at different angles on the crankshaft, so that each split slider performs staggered stamping on workpieces at different stations, thereby reducing the power demand transmitted to the slider by the crankshaft per unit time, so as to reduce the stamping load during a single die punching; this design reduces the power demand transmitted to the slider by the crankshaft per unit time, effectively disperses the peak load, and reduces the allowable load; at the same time, under this design, the strength of the crankshaft can be moderately reduced, so the weight of the crankshaft can also be reduced. This means that only a smaller driving force is needed to drive the movement of the crankshaft, thereby realizing the miniaturization of its drive system.

[0008] In order to achieve force balance of the workpiece during asynchronous stamping, the connecting rods of the split sliders are installed on the crankshaft at different angles, which can be staggered at different angles in a centrally symmetrical manner on the crankshaft, thereby achieving force balance of the workpiece during asynchronous stamping.

[0009] Preferably, the crankshaft and the split slider are connected by a connecting rod. One end of the connecting rod is sleeved and installed at different angles on the crankshaft, and the other end of the connecting rod is connected to the split slider. The design of the connecting rod effectively converts the rotational motion of the crankshaft into the linear reciprocating stamping motion of the split slider. By adjusting the length and angle of the connecting rod, it can be ensured that the movement amplitude and direction of the split slider match the required specifications of the stamping parts, thereby meeting the requirements of the stamping process. Generally speaking, different effects can be obtained by selecting different connecting rod lengths and phase angles; but from a machine, the phase angles can be different, but the connecting rod lengths must be the same, otherwise the slider movement will be messed up. That is, the movement amplitudes of the split sliders described later are different.

[0010] The present invention designs a staggered stamping method using a split slider. By utilizing the different angles of the crankshaft, the mold closing times of different stations can be staggered. Split sliders installed at different angles are used to perform asynchronous stamping on workpieces at different stations, thereby avoiding the problem of large peak loads when all stations are stamped at the same time, thereby reducing structural strength requirements such as the crankshaft and the frame, reducing the weight of these structures, thereby achieving lightweighting of the entire mechanism and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic structural diagram of a four-station embodiment of the present invention;

[0012] Figure 2 is a top view of the present invention;

[0013] Figure 3 It is a cross-sectional view of the structure of the present invention;

[0014] Figure 4 It is a schematic structural diagram of an embodiment of the present invention in which two workstations are symmetrically arranged.

[0015] Among them: a crankshaft 1, a split slider 2, a first slider 21, a second slider 22, a third slider 23, a fourth slider 24, a first symmetrical slider 25, a second symmetrical slider 26, and a connecting rod 4. DETAILED DESCRIPTION

[0016] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0017] Example 1

[0018] like Figure 1 As shown, this embodiment describes a method for staggered stamping using a split slider, including a crankshaft 1, wherein a connecting rod 4 for driving a split slider 2 is sleeved in the middle section of the crankshaft 1, and each split slider 2 is connected to a connecting rod 4 installed at different angles on the crankshaft 1. This embodiment is provided with four split sliders 2, namely a first slider 21, a second slider 22, a third slider 23 and a fourth slider 24, and the connecting rods 4 of the first slider 21, the second slider 22, the third slider 23 and the fourth slider 24 are all installed at different angles on the crankshaft 1, so that the first slider 21, the second slider 22, the third slider 23 and the fourth slider 24 correspond to the workpieces of four stations for staggered stamping; as shown Figure 3 As shown, a connecting rod 4 for driving the split slider 2 is provided between the crankshaft 1 and the split slider 2. Each split slider 2 is connected to the connecting rod 4 installed at different angles on the crankshaft 1. The connection is made through the connecting rod 4. The design of the connecting rod 4 allows the rotational motion of the crankshaft 1 to be effectively converted into the linear reciprocating stamping motion of the split slider 2. By adjusting the length and phase angle of the connecting rod 4, it can be ensured that the movement amplitude of the split slider 2 and the corresponding front and rear position are matched with the required specifications of the stamping parts, thereby meeting the requirements of the stamping process.

[0019] The split-type slider for staggered stamping provided in this embodiment reduces the stamping load during a single die punching, avoids the high peak load problem that may occur when all stations are stamping at the same time, and successfully reduces the strength requirements of the crankshaft 1 and the frame on which the crankshaft 1 is installed, thereby reducing the weight of these structures. This not only achieves lightweighting of the entire mechanism, but also reduces production costs.

[0020] Example 2

[0021] like Figure 2 , Figure 4 As shown, this embodiment provides a method for staggered stamping using a split slider, wherein the connecting rods of each split slider 2 are installed at different angles on the crankshaft 1, and are staggered at different angles in a symmetrical manner in the middle section of the crankshaft 1. The split slider 2 described in this embodiment includes a first symmetrical slider 25 and a second symmetrical slider 26, thereby achieving force balance of the workpiece during the asynchronous stamping process. This design reduces the power demand transmitted by the crankshaft 1 to the split slider 2 per unit time, effectively and evenly disperses the peak load, and reduces the allowable load.

[0022] Of course, the present invention can also be provided with more workstations corresponding to more split sliders 2 of different angles as required, which will not be illustrated one by one here.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for staggered stamping using a split slider, comprising a crankshaft (1), characterized in that A connecting rod (4) for driving the split slider (2) is sleeved on the middle section of the crankshaft (1), and each split slider (2) is connected to a connecting rod (4) installed at a different angle on the crankshaft (1), so that each split slider (2) performs staggered stamping on workpieces at different workstations.

2. According to claim 1, a method for staggered stamping using a split slider is characterized in that The connecting rods (4) of the split sliders (2) are installed on the crankshaft (1) at different angles, and are installed at different angles in a staggered manner on the crankshaft (1) in a centrally symmetrical manner in the middle section.

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