Dynamic compensation mechanism of punch press body

Abstract

The application discloses a dynamic compensation mechanism of a punch body, belongs to the technical field of punch transmission mechanisms, and aims to provide a dynamic compensation mechanism of a punch body which can guarantee the stability of the output of a driver without configuring a flywheel, comprising a rack, a crank and lifting plates, the rack comprises a pair of configuration plates, guide rails are fixedly connected to the top and bottom of each configuration plate, all the guide rails are parallel, the crank is rotationally connected to the two configuration plates, the crank comprises a central shaft, a left rotating shaft is connected to one end of the central shaft through a left connecting plate, a right rotating shaft is connected to the other end of the central shaft through a right connecting plate, and the central shaft, the left rotating shaft and the right rotating shaft are parallel to each other. Two lifting plates are designed, a stamping die and a counterweight piece are respectively installed on the two lifting plates, and the two lifting plates reciprocatingly make lifting movements of approaching each other and moving away from each other under the driving action of the crank, the counterweight piece is used for balancing the torque borne by the crankshaft, and the continuous stability of the output of the driver can be guaranteed without configuring a flywheel structure.

Description

Technical Field

[0001] This application relates to the technical field of punch press transmission mechanisms, and in particular to a dynamic compensation mechanism for a punch press body. Background Technology

[0002] The punch press uses a crank and connecting rod structure to drive the stamping die in reciprocating motion. Because the stamping die has a large mass, it will generate a large reaction force on the punch press driver during its rise and fall. This not only puts a large alternating load on the transmission structure, but also requires the driver to work with a flywheel to maintain stable output. Utility Model Content

[0003] The purpose of this application is to provide a dynamic compensation mechanism for a punch press body that can ensure stable output of the driver without the need for a flywheel.

[0004] To achieve the above objectives, this application provides a dynamic compensation mechanism for a punch press body: including a frame, a crank, and a lifting plate. The frame includes a pair of configuration plates, each configuration plate having a guide rail fixedly connected above and below it. All the guide rails are parallel. The crank is rotatably connected to both configuration plates simultaneously. The crank includes a central shaft, one end of which is connected to a left rotating shaft via a left connecting plate; the other end of which is connected to a right rotating shaft via a right connecting plate. The axes of the central shaft, the left rotating shaft, and the right rotating shaft are parallel to each other and lie in the same plane. There are two lifting plates. One lifting plate cooperates with the upper guide rail to form a sliding pair, and the other lifting plate cooperates with the lower guide rail to form a sliding pair. The left rotating shaft is movably connected to one lifting plate via a connecting rod, and the right rotating shaft is movably connected to the other lifting plate via another connecting rod. The two lifting plates are respectively equipped with a stamping die and a configuration block.

[0005] As a preferred embodiment, the left rotating shaft is connected to the first main shaft via the left second connecting plate, and the right rotating shaft is connected to the second main shaft via the right second connecting plate. The axes of the first and second main shafts are collinear with the axis of the central shaft. Each of the configuration plates is provided with a main shaft hole, which cooperates with the first and second main shafts to form a rotating pair, thereby restricting the degree of freedom of the crank and ensuring the stability of the crank during rotation.

[0006] As a preferred embodiment, one end of the connecting rod is provided with a secondary shaft hole, which is suitable for cooperating with the left or right rotating shaft to form a rotating pair, ensuring that the connecting rod can make adaptive angle adjustments relative to the crank.

[0007] As a preferred embodiment, the other end of the connecting rod is fixedly connected to a push-pull shaft, and the surface of the lifting plate facing the crank has a hinge frame, which is suitable for cooperating with the push-pull shaft to form a rotating pair, ensuring that the connecting rod can make adaptive angle adjustments relative to the lifting plate.

[0008] As a preferred embodiment, the end of the push-pull shaft passes through the hinge frame and is fixedly connected to a limit ring to ensure the linkage stability between the connecting rod and the lifting plate.

[0009] As a preferred embodiment, the lifting plate has a mounting groove on its surface facing away from the crank for mounting a stamping die or a counterweight.

[0010] As a preferred embodiment, the lifting plate has guide holes that extend through the upper and lower surfaces, allowing the guide rail to pass through to form a sliding pair, thereby restricting the degree of freedom of movement of the lifting plate and improving the stability of its movement.

[0011] As a preferred embodiment, the upper ends of the guide rails above the two configuration plates are fixedly connected by a bridging plate, and the lower ends of the guide rails below the two configuration plates are fixedly connected by a bridging plate to ensure a stable spacing between the two configuration plates.

[0012] Compared with the prior art, the beneficial effects of this application are as follows:

[0013] (1) By designing two lifting plates, and installing stamping dies and counterweights respectively, the two lifting plates reciprocate to move closer and further away from each other under the action of the crank. The counterweights balance the torque on the crankshaft, and the continuous stability of the driver output can be guaranteed without configuring a flywheel structure.

[0014] (2) The counterweight plate can also greatly offset the reaction force exerted by the stamping die on the crankshaft through the connecting rod, so that the impact force exerted by the crankshaft on the press body is smaller, thereby improving the stability of the press body. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the dynamic compensation mechanism of the punch press body.

[0016] Figure 2 This is a schematic diagram of the first three-dimensional structure of the dynamic compensation mechanism of the punch press body, in which the crank is connected to the lifting plate via a connecting rod.

[0017] Figure 3 This is a second three-dimensional structural diagram of the dynamic compensation mechanism of the punch press body, in which the crank is connected to the lifting plate via a connecting rod.

[0018] Figure 4 This is a three-dimensional structural diagram of the crank and connecting rod cooperation of the dynamic compensation mechanism of the punch press body.

[0019] Figure 5 This is a three-dimensional structural diagram of the linkage and lifting plate of the dynamic compensation mechanism of the punch press body.

[0020] Figure 6This is a three-dimensional structural diagram of the crank of the dynamic compensation mechanism of the punch press body.

[0021] Figure 7 This is a three-dimensional structural diagram of the connecting rod of the dynamic compensation mechanism of the punch press body.

[0022] Figure 8 This is a first three-dimensional structural diagram of the lifting plate of the dynamic compensation mechanism of the punch press body.

[0023] Figure 9 This is a second three-dimensional structural diagram of the lifting plate of the dynamic compensation mechanism of the punch press body.

[0024] Figure 10 This is a three-dimensional structural diagram of the frame of the dynamic compensation mechanism of the punch press.

[0025] In the diagram: 1. Frame; 101. Configuration plate; 102. Spindle hole; 103. Guide rail; 104. Bridge plate; 2. Crank; 201. Central shaft; 221. Left pivot shaft; 222. Left first connecting plate; 223. Left second connecting plate; 224. First spindle; 231. Right pivot shaft; 232. Right first connecting plate; 233. Right second connecting plate; 234. Second spindle; 3. Connecting rod; 301. Secondary shaft hole; 302. Push-pull shaft; 303. Limiting ring; 4. Lifting plate; 401. Hinge frame; 402. Guide hole; 403. Configuration slot. Detailed Implementation

[0026] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0027] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0028] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0029] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0030] like Figure 1-10 The dynamic compensation mechanism of the punch press body shown includes a frame 1, a crank 2, and a lifting plate 4. The frame 1 includes a pair of fixedly installed configuration plates 101. The two configuration plates 101 are parallel to each other and symmetrical from left to right. Each configuration plate 101 is fixedly connected to the top and bottom of a guide rail 103. Normally, each configuration plate 101 has two guide rails 103 on the top and two guide rails 103 on the bottom. All guide rails 103 are parallel and extend vertically. The upper ends of the guide rails 103 on the top of the two configuration plates 101 are fixedly connected by a bridging plate 104, and the lower ends of the guide rails 103 on the bottom of the two configuration plates 101 are fixedly connected by a bridging plate 104. In this way, the distance between the two configuration plates 101 remains stable.

[0031] Crank 2 is rotatably connected to both configuration plates 101. The specific structure of crank 2 includes a central shaft 201. One end of the central shaft 201 is connected to a left-hand pivot 221 via a left connecting plate 222. One end of the left connecting plate 222 is fixedly connected to the central shaft 201, and the other end is fixedly connected to the left-hand pivot 221. The other end of the central shaft 201 is connected to a right-hand pivot 231 via a right connecting plate 232. One end of the right connecting plate 232 is fixedly connected to the central shaft 201, and the other end is fixedly connected to the right-hand pivot 231. The axes of the central shaft 201, the left-hand pivot 221, and the right-hand pivot 231 are parallel to each other and lie in the same plane. In this embodiment, the distance between the axis of the left-hand pivot 221 and the central shaft 201 is equal to the distance between the axis of the right-hand pivot 221 and the axis of the right-hand pivot 231. The distance between shaft 231 and central shaft 201 is such that the left rotating shaft 221 is connected to the first main shaft 224 through the left second connecting plate 223, one end of the left second connecting plate 223 is fixedly connected to the left rotating shaft 221 and the other end is fixedly connected to the first main shaft 224; the right rotating shaft 231 is connected to the second main shaft 234 through the right second connecting plate 233, one end of the right second connecting plate 233 is fixedly connected to the right rotating shaft 231 and the other end is fixedly connected to the second main shaft 234; the axes of the first main shaft 224 and the second main shaft 234 are collinear with the axis of central shaft 201; correspondingly, each configuration plate 101 is provided with a main shaft hole 102, which cooperates with the first main shaft 224 and the second main shaft 234 to form a rotating pair, thereby restricting the degree of freedom of crank 2.

[0032] There are two lifting plates 4, located above and below the crank 2 respectively. The upper lifting plate 4 cooperates with the upper guide rail 103 to form a sliding pair, and the lower lifting plate 4 cooperates with the lower guide rail 103 to form a sliding pair. The left rotating shaft 221 is movably connected to one lifting plate 4 through a connecting rod 3, and the right rotating shaft 231 is movably connected to the other lifting plate 4 through another connecting rod 3. One end of the connecting rod 3 has a secondary shaft hole 301, which cooperates with the left rotating shaft 221 or the right rotating shaft 231 to form a rotating pair. The other end of the connecting rod 3 is fixedly connected to a push-pull shaft 302. The surface of the lifting plate 4 facing the crank 2 has a hinge frame 401, which is used to cooperate with the push-pull shaft 302 to form a rotating pair. The end of the push-pull shaft 302 passes through the hinge frame 401 and is fixedly connected to a limit ring 303. The limit ring 303 is usually the end of the bolt with a larger size, which can effectively prevent the lifting plate 4 from separating from the connecting rod 3.

[0033] The lifting plate 4 has a configuration slot 403 on the surface facing away from the crank 2. The configuration slot 403 of the lower lifting plate 4 is used to install the stamping die, and the configuration slot 403 of the upper lifting plate 4 is used to install the counterweight. The lifting plate 4 has guide holes 402 at the four corners that penetrate the upper and lower surfaces. The guide holes 402 are outside the configuration slot 403 and are used for the guide rail 103 to pass through to form a sliding pair, which restricts the degree of freedom of the lifting plate 4 and improves the smoothness of the reciprocating motion of the lifting plate 4.

[0034] Working principle: The lower lifting plate 4 is equipped with a stamping die, and the upper lifting plate 4 is equipped with a counterweight. When the crank 2 is driven by the press drive to lower the lower lifting plate 4, the upper lifting plate 4 will rise at the same time. When the crank 2 is driven by the drive to raise the lower lifting plate 4, the upper lifting plate 4 will fall at the same time. In this way, whether the drive drives the stamping die to rise or fall, it can get torque compensation provided by the counterweight through the connecting rod 3 and the crank 2, so that the drive can work more smoothly and continuously. On the other hand, since the reaction force of the stamping die and the counterweight during the lifting and lowering process will be greatly canceled by the connecting rod 3 on the rotation axis of the crank 2, the impact force transmitted by the crank 2 to the press body will also be greatly reduced, which can maintain the stability of the press body.

[0035] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A dynamic compensation mechanism for a punch press body, characterized in that, include: A frame (1) includes a pair of configuration plates (101), each configuration plate (101) having a guide rail (103) fixedly connected above and below it, and all the guide rails (103) being parallel; A crank (2) is rotatably connected to two configuration plates (101). The crank (2) includes a central shaft (201). One end of the central shaft (201) is connected to a left pivot (221) via a left connecting plate (222). The other end of the central shaft (201) is connected to a right pivot (231) via a right connecting plate (232). The axes of the central shaft (201), the left pivot (221), and the right pivot (231) are parallel to each other and lie in the same plane. There are two lifting plates (4). One lifting plate (4) cooperates with the upper guide rail (103) to form a sliding pair, and the other lifting plate (4) cooperates with the lower guide rail (103) to form a sliding pair. The left rotating shaft (221) is movably connected to one lifting plate (4) through a connecting rod (3), and the right rotating shaft (231) is movably connected to the other lifting plate (4) through another connecting rod (3).

2. The dynamic compensation mechanism for the punch press body as described in claim 1, characterized in that: The left rotating shaft (221) is connected to the first main shaft (224) through the left second connecting plate (223), and the right rotating shaft (231) is connected to the second main shaft (234) through the right second connecting plate (233). The axes of the first main shaft (224) and the second main shaft (234) are collinear with the axis of the central shaft (201). Each of the configuration plates (101) is provided with a main shaft hole (102), which cooperates with the first main shaft (224) and the second main shaft (234) to form a rotating pair.

3. The dynamic compensation mechanism for the punch press body as described in claim 2, characterized in that: One end of the connecting rod (3) is provided with a secondary shaft hole (301), which is suitable for cooperating with the left rotating shaft (221) or the right rotating shaft (231) to form a rotating pair.

4. The dynamic compensation mechanism for the punch press body as described in claim 3, characterized in that: The other end of the connecting rod (3) is fixedly connected to a push-pull shaft (302), and the surface of the lifting plate (4) facing the crank (2) has a hinge frame (401), which is suitable for cooperating with the push-pull shaft (302) to form a rotating pair.

5. The dynamic compensation mechanism for the punch press body as described in claim 4, characterized in that: The end of the push-pull shaft (302) passes through the hinge frame (401) and is fixedly connected to a limit ring (303).

6. The dynamic compensation mechanism for the punch press body as described in claim 5, characterized in that: The lifting plate (4) has a configuration groove (403) on its surface facing away from the crank (2).

7. The dynamic compensation mechanism for the punch press body as described in any one of claims 1 to 6, characterized in that: The lifting plate (4) has a guide hole (402) that runs through the upper and lower surfaces, which is suitable for the guide rail (103) to pass through to form a sliding pair.

8. The dynamic compensation mechanism for the punch press body as described in claim 7, characterized in that: The upper ends of the guide rails (103) above the two configuration plates (101) are fixedly connected by a bridge plate (104), and the lower ends of the guide rails (103) below the two configuration plates (101) are fixedly connected by a bridge plate (104).

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