Stamping device with pressure maintaining function

Abstract

The application provides a stamping device with a pressure maintaining function, and belongs to the technical field of stamping equipment. The stamping device with the pressure maintaining function solves the problem that the existing stamping equipment does not have the pressure maintaining function. The stamping device with the pressure maintaining function comprises a machine body, a driving body, an eccentric shaft, a connecting rod assembly, a stamping assembly and a first angle. In the application, when the eccentric shaft moves from an entry point to a separation point during one rotation of the eccentric shaft driven by the driving body, the stamping assembly performs pressure maintaining on the material once, so that the stamping effect of the material can be effectively improved.

Description

Technical Field

[0001] This invention belongs to the field of stamping equipment technology, and relates to a stamping device with a pressure holding function. Background Technology

[0002] Stamping is a forming process that uses a press and dies to apply external force to sheet metal, strip, tube, and profiles, causing plastic deformation or separation to obtain workpieces (stamped parts) of the desired shape and size. Stamping and forging both belong to plastic processing (or pressure processing) and are collectively referred to as forging and pressing. The blanks for stamping are mainly hot-rolled and cold-rolled steel plates and strips. Of the world's steel, 60-70% is sheet metal, most of which is stamped into finished products. However, traditional stamping presses only press the blank during the stamping process without holding the pressure. This may result in the blank being stamped with an incomplete shape, and its thickness may not meet processing requirements. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a stamping device with a pressure-holding function.

[0004] The objective of this invention can be achieved through the following technical solution: a stamping device with a pressure-holding function, comprising:

[0005] Organism;

[0006] A drive unit is mounted on the machine body, and an eccentric rod is connected to the drive unit;

[0007] A connecting rod assembly is movably mounted inside the machine body, with one end of the eccentric rod connected to the side of the connecting rod assembly;

[0008] The stamping assembly is movably disposed within the machine body, and the connection between the connecting rod assembly and the stamping assembly and the connection between the connecting rod assembly and the eccentric rod have a first angle.

[0009] In the aforementioned stamping device with pressure holding function, the connecting rod assembly includes a fixed shaft connected to the machine body and a bushing movably sleeved on the fixed shaft.

[0010] In the above-mentioned stamping device with pressure holding function, the middle part of the side of the bushing is provided with an active lug that is hinged to the eccentric rod, and the two ends of the side of the bushing are provided with driven seats that are hinged to the stamping assembly. Each driven seat is provided with a seat rod.

[0011] In the aforementioned stamping device with a pressure-holding function, the active lug and the driven seat have the aforementioned first angle.

[0012] In the aforementioned stamping device with pressure holding function, the driving body is provided with an eccentric shaft for connecting an eccentric rod.

[0013] In the above-mentioned stamping device with pressure holding function, the stamping assembly includes a stamping body that can be raised and lowered within the machine body. The stamping body is provided with the same number of connecting members as the driven seat, and each connecting member is hinged to the driven seat.

[0014] In the above-mentioned stamping device with pressure holding function, each of the connecting parts includes a lifting shaft connected to the stamping body, and a ball is movably connected to the end of the lifting shaft away from the stamping body. A seat sleeve that is hinged to the seat rod is detachably connected to the ball.

[0015] In the above-mentioned stamping device with pressure holding function, an upper connecting sleeve is sleeved on the lifting shaft, the upper connecting sleeve is threadedly connected to the lifting shaft, and the bottom end of the upper connecting sleeve is detachably connected to the stamping body.

[0016] In the above-mentioned stamping device with pressure holding function, the lifting shaft is provided with an end shaft at one end near the stamping body, and a lower connecting sleeve is sleeved on the end shaft. The lower connecting sleeve is threaded to the end shaft. An insert sleeve is provided on the end face of the lower connecting sleeve away from the stamping body. Both the lower connecting sleeve and the insert sleeve are inserted into the upper connecting sleeve. The side diameter of the lower connecting sleeve is larger than the side diameter of the insert sleeve.

[0017] In the above-mentioned stamping device with pressure holding function, there is a gap between the lower sleeve and the upper sleeve at one end face near the insert sleeve. The upper sleeve is provided with a horizontal oil pipe and a vertical oil pipe on its side. The horizontal oil pipe and the vertical oil pipe are connected, and the vertical oil pipe is connected to the gap.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. In this invention, during the process of the drive body driving the bias shaft to rotate one revolution, when the eccentric shaft moves from the entry point to the exit point, the stamping assembly will hold the material once, thus effectively improving the stamping effect of the material.

[0020] 2. When the lifting shaft drives the upper and lower connecting sleeves to rise and fall, oil needs to be introduced into the gap. Since this gap is located between the end face of the lower connecting sleeve near the insert sleeve and the upper connecting sleeve, a certain compressive force can be generated between the lower and upper connecting sleeves. This results in a certain compressive force at the connection between the upper connecting sleeve and the lifting shaft, a certain compressive force at the connection between the lower connecting sleeve and the end shaft, and a certain compressive force at the connection between the insert sleeve and the end shaft. In this way, the upper connecting sleeve will not slip off the lifting shaft during the lifting process, and the lower connecting sleeve and insert sleeve will not slip off the end shaft. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the external structure of the stamping device.

[0022] Figure 2 yes Figure 1 Sectional view at point AA.

[0023] Figure 3 This is a diagram showing the state of the connecting rod assembly after it has rotated a certain angle.

[0024] Figure 4 yes Figure 2 Sectional view at point BB.

[0025] Figure 5 This is a structural schematic diagram of the linkage assembly.

[0026] Figure 6 This is a simplified schematic diagram of the connecting rod assembly and the eccentric rod at the pressure holding point.

[0027] Figure 7 This is a simplified schematic diagram of the connecting rod assembly and the eccentric rod at the entry point.

[0028] Figure 8 This is a simplified schematic diagram of the connecting rod assembly and the eccentric rod at the point of disengagement.

[0029] Figure 9 yes Figure 4 A magnified structural diagram at point D.

[0030] Figure 10 It is a curve formed by the rotation angle of the stamped body and the eccentric shaft.

[0031] in, Figure 10 The horizontal axis represents the rotation angle of the eccentric shaft, and the vertical axis represents the descent distance of the stamped body. Detailed Implementation

[0032] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings to further illustrate the technical solutions of the present invention. However, the present invention is not limited to these embodiments.

[0033] like Figure 1 — Figure 3 , Figure 5 — Figure 8 and Figure 10 As shown, the present invention provides a stamping device with a pressure-holding function, comprising a body 100, a drive body 200, an eccentric rod 210, a connecting rod assembly 300, a stamping assembly 400, and a first angle e.

[0034] A drive body 200 is mounted on the machine body 100, and an eccentric rod 210 is connected to the drive body 200. A connecting rod assembly 300 is movably disposed within the machine body 100. One end of the eccentric rod 210 is connected to the side of the connecting rod assembly 300. A stamping assembly 400 is movably disposed within the machine body 100. The connection between the connecting rod assembly 300 and the stamping assembly 400 and the connection between the connecting rod assembly 300 and the eccentric rod 210 have a first angle ε. During operation, the drive body 200 drives the eccentric rod 210. The drive body 200 is provided with an eccentric shaft 220 for connecting the eccentric rod 210. During operation, the drive body 200 drives the eccentric shaft 220 to rotate, and the eccentric shaft 220 drives the eccentric rod 210 to move. Since one end of the eccentric rod 210 is hinged to the connecting rod assembly 300, and the connecting rod assembly 300 is hinged to the stamping assembly 400, the eccentric rod 210 drives the connecting rod assembly 300 to move, and the connecting rod assembly 300 drives the stamping assembly 400 to rise and fall. In this way, the stamping assembly 400 can stamp the material.

[0035] In this invention, during the process of the rotating disk driving the eccentric shaft 220 to move, when the line connecting the eccentric shaft 220 and the center of the rotating disk coincides with the eccentric rod 210 and the eccentric shaft 220 is located on the side of the rotating disk center away from the connecting rod assembly 300, the position of the eccentric shaft 220 at this time is called the pressure holding point a. The preset point with the pressure holding point a as the starting point and the central angle between positive 24° and 26° is called the entry point b. The preset point with the pressure holding point a as the starting point and the central angle between negative 24° and 26° is called the disengagement point c.

[0036] The linkage assembly 300 includes a fixed shaft 320 connected to the body 100 and a bushing 330 movably sleeved on the fixed shaft 320. The bushing 330 has a drive lug 340 hinged to an eccentric rod 210 at its center side. The bushing 330 has driven seats 350 hinged to a stamping assembly 400 at both ends of its side. Each driven seat 350 contains a seat rod 351. The drive lug 340 and the driven seat 350 have the aforementioned first angle e. In this invention, the drive body 200 can be... A motor (not shown in the figure) has a rotating disk (not labeled in the figure). The rotating disk is connected to an eccentric shaft 220, and the eccentric shaft 220 is eccentrically positioned relative to the center of the rotating disk. When the rotating disk drives the eccentric shaft 220 to rotate, the eccentric shaft drives the eccentric rod 210 to move, thereby causing the eccentric rod 210 to pull the driving lug 340 to move. Because the bushing 330 is movably sleeved on the fixed shaft 320, both the driving lug 340 and the driven seat 350 are fixedly connected to the side of the bushing 330, so that the driving lug 340 and the driven seat 350 are... The eccentric rod 210, bushing 330, and drive lug 340 can rotate simultaneously around the fixed shaft 320. This means the eccentric rod 210 drives the drive lug 340 and driven seat 350 to rotate. When the eccentric shaft 220 rotates to entry point b, the angle between the driven seat 350 and the stamping assembly 400 approaches 180°. Specifically, this angle can be between 175° and 178°. At this point, the stamping assembly 400 begins to hold pressure on the material. When the eccentric shaft 220 moves to pressure holding point a, the driven seat 350 and the stamping assembly 400... The angle between them is 180°. At this time, the stamping assembly 400 still holds the material under pressure. Afterward, after the eccentric shaft 220 moves to the disengagement point c, the angle between the stamping assembly 400 and the driven seat 350 will gradually decrease, and the stamping assembly 400 will no longer hold the material under pressure. It can be seen that during the process of the rotating disk driving the eccentric shaft to rotate one revolution, when the eccentric shaft 220 moves from the entry point b to the disengagement point c, the stamping assembly 400 will hold the material under pressure once. In this way, the stamping effect of the material can be effectively improved.

[0037] Furthermore, when the motor is working, the rotating disk rotates circumferentially around its center.

[0038] like Figure 4 and Figure 9As shown, the stamping assembly 400 includes a stamping body 410 that can be raised and lowered within the machine body 100. The stamping body 410 is provided with the same number of connecting members 420 as the driven seat 350. Each connecting member 420 is hinged to the driven seat 350. Specifically, each connecting member 420 includes a lifting shaft 421 connected to the stamping body 410. A ball 422 is movably connected to the end of the lifting shaft 421 away from the stamping body 410. A ball seat 421b for movably locking the ball is provided at one end of the lifting shaft. The ball 422 is detachably connected to a seat rod 351 hinged to it. When the driven seat 350 rotates around the fixed shaft 320, the angle between the seat sleeve 423 and the driven seat 350 changes accordingly because the seat sleeve 423 is hinged to the driven seat 350. Furthermore, when the angle between the seat sleeve 423 and the driven seat 350 gradually decreases, the ball 422 will rise relative to the machine body 100, thereby pulling the lifting shaft 421 to rise; when the angle between the seat sleeve 423 and the driven seat 350 gradually increases, the ball 422 will fall relative to the machine body 100, thereby pushing the lifting shaft 421 to fall, so as to achieve the stamping effect on the material.

[0039] Furthermore, there are two connectors 420, located on both sides of the active ear 340, so that the force on the stamped part can be more even.

[0040] An upper connecting sleeve 430 is fitted on the lifting shaft 421. The upper connecting sleeve 430 is threadedly connected to the lifting shaft 421. The bottom end of the upper connecting sleeve 430 is detachably connected to the stamping body 410. Through the function of the upper connecting sleeve 430, the stamping body 410 can also move up and down accordingly during the lifting process of the lifting shaft 421 relative to the machine body 100.

[0041] The lifting shaft 421 has an end shaft 421a near the stamping body 410. A lower connecting sleeve 440 is fitted onto the end shaft 421a and threadedly connected to the end shaft 421a. An insert sleeve 441 is provided on the end face of the lower connecting sleeve 440 away from the stamping body 410. Both the lower connecting sleeve 440 and the insert sleeve 441 are inserted into the upper connecting sleeve 430. The side diameter of the lower connecting sleeve 440 is larger than the side diameter of the insert sleeve 441. There is a gap 450 between the end face of the insert sleeve 441 and the upper connecting sleeve 430. The side of the upper connecting sleeve 430 is provided with a horizontal oil pipe 431 and a vertical oil pipe 432. The horizontal oil pipe 431 and the vertical oil pipe 432 are connected. The vertical oil pipe 432 is connected to the gap 450. When the lifting shaft 421 moves up and down relative to the machine body 100, because the upper connecting sleeve 430 is threadedly connected to the lifting shaft 421, both the lower connecting sleeve 440 and the insert sleeve 441 are connected to the end shaft 421a. The threaded connection allows the upper sleeve 430, lower sleeve 440, and insert sleeve 441 to rise and fall synchronously with the lifting shaft 421. During this process, external oil needs to be supplied to the gap 450 through the horizontal oil pipe 431 and the vertical oil pipe 432. Since the gap 450 is located between the end face of the lower sleeve 440 near the insert sleeve 441 and the upper sleeve 430, a certain compressive force is generated between the lower sleeve 440 and the upper sleeve 430. This results in a certain compressive force at the connection between the upper sleeve 430 and the lifting shaft 421, the connection between the lower sleeve 440 and the end shaft 421a, and the connection between the insert sleeve 441 and the end shaft 421a. As a result, the upper sleeve 430 will not slip off the lifting shaft 421 during the lifting process, and the lower sleeve 440 and insert sleeve 441 will not slip off the end shaft 421a.

[0042] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0043] Furthermore, in this invention, descriptions involving terms such as "first," "second," and "a" are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0044] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0045] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

Claims

1. A stamping device with a pressure-holding function, characterized in that, include: Organism; A drive unit is mounted on the machine body, and an eccentric rod is connected to the drive unit; A connecting rod assembly is movably mounted inside the machine body, with one end of the eccentric rod connected to the side of the connecting rod assembly; The stamping assembly is movably disposed within the machine body, and the connection between the connecting rod assembly and the stamping assembly and the connection between the connecting rod assembly and the eccentric rod have a first angle; The connecting rod assembly includes a fixed shaft connected to the machine body and a bushing movably sleeved on the fixed shaft; The bushing has an active lug hinged to the eccentric rod at the middle of its side surface, and driven seats hinged to the stamping assembly at both ends of its side surface. Each driven seat has a seat rod inside. The stamping assembly includes a stamping body that can be raised and lowered within the machine body. The stamping body is provided with the same number of connecting members as the driven seat, and each connecting member is hinged to the driven seat. Each of the connectors includes a lifting shaft connected to the stamping body, with a ball movably connected to the end of the lifting shaft away from the stamping body, and a seat sleeve hinged to the seat rod detachably connected to the ball. An upper connecting sleeve is fitted onto the lifting shaft, the upper connecting sleeve is threadedly connected to the lifting shaft, and the bottom end of the upper connecting sleeve is detachably connected to the stamping body. The lifting shaft is provided with an end shaft at one end near the stamping body. A lower connecting sleeve is sleeved on the end shaft. The lower connecting sleeve is threaded to the end shaft. An insert sleeve is provided on the end face of the lower connecting sleeve away from the stamping body. Both the lower connecting sleeve and the insert sleeve are inserted into the upper connecting sleeve. The side diameter of the lower connecting sleeve is larger than the side diameter of the insert sleeve. There is a gap between the lower sleeve and the upper sleeve at one end face near the insert sleeve. The upper sleeve is provided with a horizontal oil pipe and a vertical oil pipe on its side. The horizontal oil pipe and the vertical oil pipe are connected, and the vertical oil pipe is connected to the gap.

2. The stamping device with pressure holding function according to claim 1, characterized in that, The active ear and the driven seat have the aforementioned first angle.

3. A stamping device with pressure holding function according to claim 1, characterized in that, The drive body is provided with an eccentric shaft for connecting the eccentric rod.

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