Punching machine

Abstract

The utility model relates to the technical field of stamping machining, in particular to a stamping machine which comprises a stamping platform and a stamping die arranged on the stamping platform, the stamping platform is connected with a bearing plate used for supporting the stamping die in a sliding mode, and the stamping die comprises an upper stamping die body and a lower stamping die body. The stamping lower die comprises a stamping plate for placing a plate to be punched and a plurality of stamping holes which are densely distributed in a staggered manner; the stamping upper die is arranged right above the stamping plate, one end of the stamping upper die is in transmission connection with a driving assembly, a plurality of evenly-distributed punching cutters are arranged at the positions, corresponding to the stamping holes, in the stamping upper die, and the punching cutters can be matched with the stamping holes to conduct stamping forming on a plate. Due to the fact that the stamping holes are formed in the stamping plate in the staggered mode, maximum utilization of plates is achieved in the stamping process, and the utilization rate of the stamping area is increased; punching positions are distributed compactly, the utilization rate of metal plates is increased, the material utilization rate is increased, plate waste is reduced, and cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping processing, in particular to a stamping machine. Background Art

[0002] A stamping machine is a punching press. In national production, the stamping process has the advantages of saving materials and energy, high efficiency, low technical requirements for operators, and the ability to produce products that cannot be achieved by mechanical processing through various mold applications. Therefore, its use is becoming more and more extensive.

[0003] When a stamping machine in the prior art processes a metal sheet by stamping, the metal sheet is placed on a stamping die, and pressure is applied to the punching cutter, which presses down to punch out a circular gasket from the metal sheet. During the stamping process, the circular plate punched out from the center of the gasket is stamping waste. Since the stamping plate adopts a traditional single whole plate and the punching holes are arranged in a normal arrangement, part of the space of the plate is wasted, resulting in low stamping area utilization and panel utilization, which leads to low production efficiency. Utility Model Content

[0004] In order to solve the technical defects raised in the above-mentioned background technology, the purpose of the utility model is to provide a punching machine, aiming to solve the problem of low punching area utilization of existing punching machines, and to improve the utilization rate of whole plate punching by setting staggered panels.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A stamping machine comprises a stamping platform and a stamping die arranged on the stamping platform, characterized in that a supporting plate for supporting the stamping die is slidably connected to the stamping platform, the stamping die comprises a stamping upper die and a stamping lower die, the stamping lower die comprises a stamping plate for placing a sheet to be punched and a plurality of stamping holes densely distributed in a staggered arrangement; the stamping upper die is arranged directly above the stamping plate, and one end of the stamping upper die is transmission-connected to a driving assembly, a plurality of evenly distributed punching knives are arranged in the stamping upper die at positions corresponding to the punching holes, and the punching knives can cooperate with the punching holes to punch and form the sheet.

[0007] Preferably, a mounting frame is fixedly connected to the stamping platform, and lifting components are arranged on both sides of the mounting frame. The driving component is fixed on the mounting frame, and the lifting components are connected to both ends of the stamping upper die to drive the stamping upper die to move up and down to close or demold the stamping lower die.

[0008] Preferably, the stamping upper die includes an upper die plate, an upper die core and an upper pressure plate, and the upper die plate, the upper die core and the upper pressure plate are arranged in sequence from top to bottom, and a plurality of guide rods are connected at the corners between the upper die plate and the upper pressure plate, and telescopic springs are sleeved on the guide rods.

[0009] Preferably, one end of the punching knife is fixed on the upper mold core, and the upper pressure plate is provided with a plurality of pressing needle holes corresponding to the punching holes, the plurality of pressing needle holes are staggered, and the pressing needle holes and the punching holes are both arranged as circular structures.

[0010] Preferably, the driving assembly includes a driving cylinder and a telescopic connecting rod shaft, the output end of the driving cylinder is transmission-connected to the telescopic connecting rod shaft, and the other end of the telescopic connecting rod shaft passes through the upper mold plate and extends into the upper mold core.

[0011] Preferably, sliding components are connected to both sides of the supporting plate, and the sliding components include slide rails and guide blocks. The slide rails are arranged along the horizontal direction of the stamping platform, and the guide blocks are slidably connected to the slide rails.

[0012] Preferably, positioning holes are provided at the four corners of the stamping plate at positions corresponding to the guide rods.

[0013] In summary, the beneficial effects of the utility model are:

[0014] 1. The utility model provides staggered punching holes on the stamping plate corresponding to the metal sheet, so as to maximize the utilization of the sheet during the stamping process and improve the utilization rate of the stamping area; and the punching positions are compactly distributed, which improves the utilization rate of the metal sheet, increases the material utilization rate, reduces sheet waste, and saves costs.

[0015] 2. The punching machine of the utility model can improve the utilization rate of the whole plate punching, reduce the generation of waste materials, and reduce the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the punching machine of the utility model;

[0017] Figure 2 It is a half-section view of the punching machine of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the punching upper die in the utility model;

[0019] Figure 4 It is a structural schematic diagram of the punching lower die in the utility model;

[0020] Figure 5 It is a structural schematic diagram of the upper pressing plate in the utility model.

[0021] Description of reference numerals in the figures:

[0022] 1. Stamping platform; 2. Stamping die; 21. Stamping upper die; 211. Upper die plate; 212. Upper die core; 213. Upper pressure plate; 2131. Press needle perforation; 214. Guide rod; 215. Telescopic spring; 22. Stamping lower die; 221. Stamping plate; 222. Stamping hole; 223. Positioning hole; 3. Support plate; 4. Drive assembly; 41. Drive cylinder; 42. Telescopic connecting rod shaft; 5. Punching knife; 6. Mounting frame; 7. Lifting assembly; 71. Guide rail; 72. Guide plate; 8. Sliding assembly; 81. Slide rail; 82. Guide block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0024] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0025] In the description of the utility model, if there is a word description such as "several", it means one or more, and the meaning of "more" is two or more. Greater than, less than, and more than are understood to exclude the number itself, and above, below, and within are understood to include the number itself. If there is a description of the first, second, and third, it is only used to distinguish the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0026] The following is combined with Figure 1-5 , an embodiment of a punching machine of the utility model is further described in detail.

[0027] A punching machine, such as Figure 1 , 2 and Figure 5As shown, it includes a stamping platform 1 and a stamping die 2 arranged on the stamping platform 1, a supporting plate 3 for supporting the stamping die 2 is slidably connected to the stamping platform 1, the stamping die 2 includes a stamping upper die 21 and a stamping lower die 22, the stamping lower die 22 includes a stamping plate 221 for placing a sheet to be punched and a plurality of stamping holes 222 densely distributed in an offset arrangement; the stamping upper die 21 is arranged directly above the stamping plate 221, and one end of the stamping upper die 21 is transmission-connected to a driving assembly 4, a plurality of evenly distributed punching knives 5 are arranged at positions corresponding to the punching holes 222 in the stamping upper die 21, and the punching knives 5 can cooperate with the punching holes 222 to punch and form the sheet; positioning holes 223 are opened at the four corners of the stamping plate 221 at positions corresponding to the guide rods 214.

[0028] Specifically, when implementing the punching machine of the utility model, the user places the metal sheet to be punched on the punching die 2 of the punching platform 1, uses the positioning hole 223 to fix the punching position of the metal sheet, and aligns the punching hole 222 of the punching plate 221 with the upper pressing plate 213. Since the punching holes 222 are arranged in a staggered splicing manner, the gap between the metal sheets will be minimized when the metal sheets are punched. Then, the punching die 2 will punch and cut the entire metal sheet to achieve efficient use of the entire sheet area and improve the utilization rate of the plate.

[0029] In addition, it is worth mentioning that the punching knife 5 and the upper mold core 212 are detachably connected, and the specific L connection methods include but are not limited to threaded connection, plug-in connection and snap-on connection; since the punching knife 5 needs to cut and shape the metal sheet, the punching knife 5 is severely worn. The punching knife 5 and the upper mold core 212 are detachably connected, which is convenient for replacing the severely worn punching knife 5 to avoid affecting the processing quality of the metal sheet.

[0030] In this embodiment, a mounting frame 6 is fixedly connected to the stamping platform 1, and lifting assemblies 7 are arranged on both sides of the mounting frame 6. The driving assembly 4 is fixed on the mounting frame 6, and the lifting assemblies 7 are connected to both ends of the stamping upper die 21 to drive the stamping upper die 21 to move up and down to close or demold the stamping lower die 22.

[0031] Specifically, the mounting frame 6 can play the role of fixing the stamping die 2. The mounting frame 6 is fixed to the stamping platform 1 by screws, and the lifting components 7 arranged on both sides of the support plate 3 can be lifted up and down along the fixed frame during the stamping process of the stamping die 2. The lifting component 7 includes a guide plate 72 and a guide rail 71. The guide rail 71 is arranged close to the inner wall of the fixed frame. The guide plate 72 is slidably connected to the guide rail 71, and one side of the guide plate 72 is connected to the stamping upper die 21.

[0032] In this embodiment, if Figure 3 , 4As shown, the stamping upper die 21 includes an upper die plate 211, an upper die core 212 and an upper pressing plate 213. The upper die plate 211, the upper die core 212 and the upper pressing plate 213 are arranged in sequence from top to bottom. A plurality of guide rods 214 are connected to the corners between the upper die plate 211 and the upper pressing plate 213, and telescopic springs 215 are sleeved on the guide rods 214.

[0033] Specifically, when the stamping upper die 21 is performing stamping, the upper die core 212 between the upper die plate 211 and the upper pressure plate 213 operates according to the stamping trajectory and drives the punching knife 5 to operate. The guide rod 214 between the upper die plate 211 and the upper pressure plate 213 can guide the movement direction of the stamping upper die 21 and play a role of limiting. At the same time, the telescopic spring 215 sleeved on the outer side of the guide rod 214 can play a buffering role when the upper die plate 211 is compressed to the upper pressure plate 213, and the telescopic spring 215 returns to its original state under the elastic force after stamping.

[0034] In this embodiment, one end of the punching knife 5 is fixed on the upper mold core 212, and the upper pressure plate 213 is provided with a plurality of pressing needle perforations 2131 corresponding to the punching holes 222. The plurality of pressing needle perforations 2131 are staggered, and the pressing needle perforations 2131 and the punching holes 222 are both arranged in a circular structure; the punching holes 222 on the punching plate 221 are arranged in a staggered splicing manner, that is, some of the punching holes 222 are arranged equidistantly, and the other part of the punching holes 222 are inserted into the equidistantly arranged punching spaces, and the two are staggered in a manner, which can save the material utilization rate of the metal sheet during stamping, and can maximize the stamping utilization area of ​​the sheet, save costs, and improve stamping efficiency.

[0035] In this embodiment, the driving assembly 4 includes a driving cylinder 41 and a telescopic connecting rod shaft 42. The output end of the driving cylinder 41 is transmission-connected to the telescopic connecting rod shaft 42, and the other end of the telescopic connecting rod shaft 42 passes through the upper mold plate 211 and extends into the upper mold core 212. During stamping, the driving cylinder 41 generates power for the closing and demolding of the stamping mold 2, and performs telescopic transmission through the telescopic connecting rod shaft 42. One end of the telescopic connecting rod shaft 42 passes through the mounting frame 6 and extends into the stamping upper mold 21, so that it can control the working state of the stamping upper mold 21.

[0036] In this embodiment, sliding assemblies 8 are connected to both sides of the supporting plate 3 . The sliding assemblies 8 include slide rails 81 and guide blocks 82 . The slide rails 81 are arranged along the horizontal direction of the stamping platform 1 , and the guide blocks 82 are slidably connected to the slide rails 81 .

[0037] Specifically, the support plate 3 is used to place the stamping lower die 22, and it can also facilitate the rapid loading of metal sheets; the support plate 3 is made of a metal material with high hardness, and its two ends slide along the slide rail 81 through guide blocks 82, which is convenient for subsequent loading and unloading.

[0038] The working principle of this utility model:

[0039] During stamping, the metal sheet to be stamped is placed on the stamping plate 221, and the supporting plate 3 leads the stamping lower die 22 to move along the stamping platform 1 under the action of the sliding component 8, and the stamping position is adjusted; and the driving cylinder 41 is used to drive the stamping die 2 to perform stamping, and the telescopic connecting rod shaft 42 is extended to push the upper template 211 to move downward, thereby pushing the upper die core 212 to drive the punching knife 5 to move downward, and at the same time, the upper pressing plate 213 moves downward along the guide rod 214 until the punching knife 5 penetrates the pressing pin hole and extends to the punching hole 222 on the stamping plate 221 to complete the stamping, and then a ring gasket is punched out on the metal sheet. The positions of the punching holes 222 are equidistantly arranged and staggered. The above-mentioned stamping action is repeated, and the position of the punching knife 5 on the metal sheet is located at the interval position of the circular hole punched out last time, which improves the utilization rate of the stamping area of ​​the metal sheet, increases the material utilization rate, and reduces the waste of the sheet.

[0040] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A punching machine, comprising a punching platform and a punching die arranged on the punching platform, characterized in that: A supporting plate for supporting the stamping die is slidably connected to the stamping platform, and the stamping die includes a stamping upper die and a stamping lower die. The stamping lower die includes a stamping plate for placing a sheet to be punched and a plurality of densely distributed staggered punching holes; the stamping upper die is arranged directly above the stamping plate, and one end of the stamping upper die is transmission-connected to a driving assembly, and a plurality of evenly distributed punching knives are arranged at positions corresponding to the punching holes in the stamping upper die, and the punching knives can cooperate with the punching holes to punch and form the sheet.

2. The punching machine according to claim 1, characterized in that A mounting frame is fixedly connected to the stamping platform, and lifting components are arranged on both sides of the mounting frame. The driving component is fixed on the mounting frame, and the lifting components are connected to both ends of the stamping upper die to drive the stamping upper die to move up and down to close or demold the stamping lower die.

3. The punching machine according to claim 2, characterized in that: The stamping upper die includes an upper die plate, an upper die core and an upper pressing plate, which are arranged in sequence from top to bottom. A plurality of guide rods are connected at the corners between the upper die plate and the upper pressing plate, and telescopic springs are sleeved on the guide rods.

4. The punching machine according to claim 3, characterized in that One end of the punching knife is fixed on the upper mold core, and the upper pressing plate is provided with a plurality of pressing needle holes corresponding to the punching holes. The plurality of pressing needle holes are arranged in a staggered manner, and the pressing needle holes and the punching holes are both arranged in a circular structure.

5. The punching machine according to claim 4, characterized in that The driving assembly includes a driving cylinder and a telescopic connecting rod shaft. The output end of the driving cylinder is transmission-connected to the telescopic connecting rod shaft. The other end of the telescopic connecting rod shaft penetrates the upper mold plate and extends into the upper mold core.

6. The punching machine according to claim 5, characterized in that Sliding components are connected to both sides of the supporting plate. The sliding components include sliding rails and guide blocks. The sliding rails are arranged along the horizontal direction of the stamping platform, and the guide blocks are slidably connected to the sliding rails.

7. The punching machine according to claim 6, characterized in that Positioning holes are provided at the four corners of the stamping plate at positions corresponding to the guide rods.

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