Stamping die

Abstract

The stamping die comprises an upper die body and a lower die body, the upper die body comprises a stripper plate, the lower die body comprises a lower die plate and a lower cushion plate which are sequentially arranged in a stacked mode from top to bottom, the stripper plate is stacked on the lower die plate, a first oil storage groove is formed in the lower die plate, and the first oil storage groove faces an opening of the stripper plate; a first oil injection channel is arranged on the lower die plate or the lower base plate, and the first oil injection channel is communicated with the first oil storage groove. According to the stamping die, oil can be injected into the first oil storage tank through the first oil injection channel, and the first oil storage tank faces the opening of the stripper plate, so that when the stripper plate downwards presses the material belt for stripping, the material belt can make contact with lubricating oil in the first oil storage tank, continuous lubricating is conducted, and the lubricating effect is guaranteed.

Description

Technical Field

[0001] The present application relates to the field of stamping technology, and in particular to a stamping die. Background Art

[0002] Metal stamping parts are thin-plate hardware. During the stamping process, since the punch and the blank are made of metal materials, when the stamping machine is in use, it is easy to cause problems such as excessive burrs or excessive stamping powder due to the excessive width of the material or the excessive length of the mold. Moreover, after a certain period of continuous work, the mold is prone to excessive wear, which reduces the quality of the product. The mold also needs maintenance or replacement, which increases the production cost. Therefore, adding lubricating oil is a necessary process.

[0003] In the prior art, lubricating oil is usually added by applying it on the sheet blank in advance or spraying it on the punching position. Manual refueling usually involves sticking the product with oil and placing it directly in the mold, or using a brush to stick the oil and brush it directly on the mold, or directly adding the oil with an oil pot. Manual refueling is not suitable for continuous mold production and can only be used in single-project mold production. In addition, the punch press cannot be produced simultaneously during manual refueling, which has a great impact on production capacity. It is suitable for the production of some large workpieces and has strong limitations.

[0004] The hanging pot dripping oil process is to add an oil storage pot and an oil pipe to the punch press or the periphery of the punch press, and then use a control valve to control the oil delivery amount. The oil is dripped on the surface of the raw material and fed into the mold together with the material through the feeder to complete the process of adding oil. A large amount of oil will accumulate in the feed port at the front end of the mold, and there will be a shortage of oil in the middle and rear end of the mold. Utility Model Content

[0005] The present application provides a stamping die to solve the problem of inability to continuously supply oil and poor lubrication effect.

[0006] According to the stamping die of the present application, it includes an upper die and a lower die, the upper die includes a stripper plate, the lower die includes a lower mold and a lower pad stacked in sequence from top to bottom, the stripper plate is stacked on the lower mold, a first oil storage tank is provided on the lower mold, the first oil storage tank opens toward the stripper plate, a first oil injection channel is provided on the lower mold or on the lower pad, and the first oil injection channel is connected to the first oil storage tank.

[0007] According to the stamping die of the present application, an elastic adsorbent is provided in the first oil storage tank, the elastic adsorbent is used to adsorb oil, and the upper surface of the elastic adsorbent is not lower than the upper surface of the lower template.

[0008] Optionally, the first oil injection channel is arranged on a side of the lower pad close to the lower template.

[0009] According to the stamping die of the present application, a recovery groove is also provided on the lower template, and the recovery groove is connected to the first oil storage tank through a guide channel. An oil return channel is provided on the lower template or on the lower pad, and the oil return channel is connected to the recovery groove.

[0010] Optionally, the bottom wall of the guide channel is higher than the bottom wall of the first oil storage tank and lower than the upper edge of the first oil storage tank.

[0011] Optionally, the recovery tank and the first oil storage tank are separated by a partition, and the guide channel is defined on the partition.

[0012] Optionally, the oil return channel is arranged on a side of the lower pad facing the lower template.

[0013] Optionally, an oil receiving port and a first oil filling port are provided on the same end surface of the lower pad, the oil receiving port is communicated with the oil return channel, and the first oil filling port is communicated with the first oil filling channel.

[0014] According to the stamping die of the present application, an assembly hole is defined on the stripping plate, a punch is passed through the assembly hole, a second oil storage tank is provided on the outer periphery of the punch, the second oil storage tank is connected to the assembly hole, a second oil guide channel is provided on the stripping back plate or on the stripping plate, and the second oil guide channel is connected to the second oil storage tank.

[0015] Optionally, a stripping inlet is provided in the assembly hole, the stripping inlet defines an oil guide hole, the punch is penetrated through the oil guide hole, the oil guide hole includes a first hole segment, a second hole segment and a third hole segment connected in sequence from top to bottom, the first hole segment is loosely matched with the punch, the second hole segment defines the second oil storage tank, and the third hole segment is loosely matched with the punch.

[0016] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0017] The stamping die provided in the embodiment of the present application can utilize the first oil filling channel to fill oil into the first oil storage tank, and the first oil storage tank is open toward the stripping plate. In this way, when the material belt is pressed under the stripping plate to strip the material, the material belt can contact the lubricating oil in the first oil storage tank, thereby performing continuous lubrication and ensuring the lubrication effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0020] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0021] Figure 1 A three-dimensional diagram of a stamping die provided in an embodiment of the present application;

[0022] Figure 2 A side view of a stamping die provided in an embodiment of the present application;

[0023] Figure 3 A three-dimensional diagram of a bottom plate of a stamping die provided in an embodiment of the present application;

[0024] Figure 4 A front view of a stripping back plate of a stamping die provided in an embodiment of the present application;

[0025] Figure 5 A three-dimensional diagram of a partial structure of a stamping die provided in an embodiment of the present application;

[0026] Figure 6 for Figure 5 Enlarged view of point A in the middle.

[0027] Description of reference numerals:

[0028] Stamping die 1, upper die 10, upper die seat 11, stripping back plate 12, second oil guide channel 121, second oil filling port 122, stripping plate 13, punch 14, stripping insert 15, oil guide hole 150, first hole section 151, second hole section 152, third hole section 153, second oil storage tank 154, lower die 20, lower template 21, first oil storage tank 211, elastic adsorption member 212, recovery tank 213, partition 214, lower pad 22, first oil filling channel 221, return oil channel 222, oil receiving port 223, first oil filling port 224, lower die seat 23, assembly hole 30. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0030] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention may repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0031] For ease of description, spatial relative terms may be used herein to describe the relative positional relationship or movement of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", "front", "back", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure undergoes a position flip or a posture change or a motion state change, then these directional indications also change accordingly, for example: an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative descriptors used herein are interpreted accordingly.

[0032] like Figure 1 , Figure 2 as well as Figure 3 As shown, the stamping die 1 according to the embodiment of the present application includes an upper die 10 and a lower die 20, the upper die 10 includes a stripper plate 13, the lower die 20 includes a lower die plate 21 and a lower pad 22 stacked in sequence from top to bottom, and the stripper plate 13 is stacked on the lower die plate 21.

[0033] A first oil storage tank 211 is provided on the lower template 21 , and the first oil storage tank 211 opens toward the stripper plate 13 . A first oil injection channel 221 is provided on the lower template 21 or the lower pad 22 , and the first oil injection channel 221 is connected to the first oil storage tank 211 .

[0034] Specifically, the first oil storage tank 211 is used to store lubricating oil, and the other end of the first oil injection channel 221 is used to connect to the oil supply system, and the oil supply system is used to provide lubricating oil to the first oil storage tank 211. In this way, when the stripping plate 13 presses the material belt to strip the material, the material belt can contact the lubricating oil in the first oil storage tank 211, so as to continuously lubricate and ensure the lubricating effect.

[0035] In some specific embodiments, a first oil injection channel 221 is provided on the lower template 21; in some specific embodiments, a first oil injection channel 221 is provided on the lower pad 22, which is not limited in the present application.

[0036] The cross-sectional shape of the first oil injection channel 221 includes but is not limited to semicircular, square, rectangular, elliptical, etc. The cross-sectional shape of the first oil storage tank 211 includes but is not limited to circular, square, rectangular, elliptical, pentagonal, etc.

[0037] According to the stamping die 1 of the embodiment of the present application, the first oil filling channel 221 can be used to fill the first oil storage tank 211 with oil. The first oil storage tank 211 is open toward the stripping plate 13. In this way, when the material belt is pressed under the stripping plate 13 for stripping, the material belt can contact the lubricating oil in the first oil storage tank 211, thereby performing continuous lubrication and ensuring the lubrication effect.

[0038] In some embodiments, the upper mold 10 includes an upper mold base 11, a stripping back plate 12 and a stripping plate 13 stacked in sequence from top to bottom, and the lower mold 20 includes a lower mold plate 21, a lower pad 22 and a lower mold base 23 stacked in sequence from top to bottom, and the stripping back plate 12 is stacked on the stripping plate 13.

[0039] like Figure 2 As shown, according to the stamping die 1 of the embodiment of the present application, an elastic adsorbent 212 is provided in the first oil storage tank 211 , and the elastic adsorbent 212 is used to adsorb oil, and the upper surface of the elastic adsorbent 212 is not lower than the upper surface of the lower template 21 .

[0040] In the actual production process, due to the influence of the punching speed during production, the stripper plate 13 of the stamping die 1 will collide with the raw material when it fits, causing the oil to splash out of the die, resulting in easy waste of oil. The stamping module 1 of the present application can absorb the lubricating oil therein by means of the elastic adsorption part 212. Only when the material belt contacts or squeezes the elastic adsorption part 212 will the seeped oil stick to the material belt, thereby avoiding the splashing of oil.

[0041] The upper surface of the elastic adsorbent 212 is not lower than the upper surface of the lower template 21, including that the height of the upper surface of the elastic adsorbent 212 is higher than the height of the upper surface of the lower template 21, and the height of the upper surface of the elastic adsorbent 212 is equal to the height of the upper surface of the lower template 21. When the height of the upper surface of the elastic adsorbent 212 is higher than the height of the upper surface of the lower template 21, the material strip will squeeze the elastic adsorbent 212 when it is pressed down by the stripping plate 13, thereby squeezing out the oil adsorbed therein for lubrication; when the height of the upper surface of the elastic adsorbent 212 is equal to the height of the upper surface of the lower template 21, the material strip will contact the elastic adsorbent 212 when it is pressed down by the stripping plate 13, thereby adhering to the oil in the elastic adsorbent 212 for lubrication.

[0042] In addition, the elastic absorbent 212 can be configured as sponge, foam, etc.

[0043] In some embodiments, the first oil injection channel 221 is disposed on a side of the lower pad 22 close to the lower mold plate 21 .

[0044] In the actual production process, since the upper mold 10 and the lower mold 20 are both metal parts, it is difficult to pour channels inside each component, and the turning and milling process is relatively simple. If the first oil injection channel 221 is milled on the side close to the stripping plate 13, it is easy to cause oil splashing. The stamping mold 1 of the present application arranges the first oil injection channel 221 on the side of the lower pad 22 close to the lower mold plate 21, which is convenient for processing and not easy to cause oil splashing.

[0045] like Figure 2 and Figure 3 As shown, according to the stamping die 1 of the embodiment of the present application, a recovery groove 213 is also provided on the lower template 21, and the recovery groove 213 and the first oil storage tank 211 are connected through a guide channel. An oil return channel 222 is provided on the lower template 21 or the lower pad 22, and the oil return channel 222 is connected to the recovery groove 213.

[0046] During actual use, if the oil is over-filled, the oil will overflow from the first oil storage tank 211, which may easily splash and cause waste of oil. Specifically, the oil in the first oil storage tank 211 of the stamping die 1 of the present application will flow into the recovery tank 213 through the diversion channel. The recovery tank 213 is connected to the recovery equipment or the oil supply equipment through the return oil channel 222 to recover the oil and prevent excessive oil in the first oil storage tank 211.

[0047] In some embodiments, the lower mold plate 21 is provided with an oil return channel 222; Figure 3 As shown, in some embodiments, an oil return channel 222 is provided on the lower pad 22 .

[0048] In some embodiments, the bottom wall of the guide channel is higher than the bottom wall of the first oil storage tank 211 and lower than the upper edge of the first oil storage tank 211. In this way, the oil in the first oil storage tank 211 can be stored at a certain height and then overflow and enter the recovery tank 213, saving the amount of oil.

[0049] like Figure 2 As shown, in some embodiments, the recovery tank 213 and the first oil storage tank 211 are separated by a partition 214, and a flow guide channel is defined on the partition 214. In this way, the structural setting can be simplified, the processing difficulty can be reduced, and the cost can be saved.

[0050] like Figure 3 As shown, in some embodiments, the oil return channel 222 is disposed on the side of the lower pad 22 facing the lower mold plate 21, which facilitates processing while preventing oil from splashing.

[0051] The cross-sectional shape of the oil return channel 222 includes but is not limited to semicircular, square, rectangular, and elliptical shapes, etc. The cross-sectional shape of the recovery tank 213 includes but is not limited to circular, square, rectangular, elliptical, and pentagonal shapes, etc.

[0052] like Figure 2 and Figure 3 As shown, in some embodiments, an oil receiving port 223 and a first oil filling port 224 are provided on the same end surface of the lower pad 22, the oil receiving port 223 is connected to the oil return channel 222, and the first oil filling port 224 is connected to the first oil filling channel 221, so that it is convenient for the oil supply equipment to be connected with the oil receiving port 223 and the first oil filling port 224, shortening the line length and simplifying the line layout.

[0053] like Figure 1 , Figure 4 as well as Figure 6 As shown, according to the stamping die 1 of the embodiment of the present application, an assembly hole 30 is provided on the stripping plate 13, a punch 14 is passed through the assembly hole 30, a second oil storage tank 154 is provided on the periphery of the punch 14 in the assembly hole of the stripping plate 13, the second oil storage tank 154 is communicated with the assembly hole 30, a second oil guide channel 121 is provided on the stripping back plate 12 or the stripping plate 13, and the second oil guide channel 121 is communicated with the second oil storage tank 154.

[0054] Specifically, the second oil storage tank 154 is used to store oil, and the second oil storage tank 154 is connected to the assembly hole 30, so that the lubricating oil can directly enter the assembly hole 30 and infiltrate the punch 14. The punch 14 contacts the material strip during stamping, thereby playing a lubricating role. The stamping die 1 of the embodiment of the present application is more suitable for stamping processes such as punching, bending and downward forming.

[0055] like Figure 4As shown, in some embodiments, a second oil guide channel 121 is provided on the stripping backing plate 12, and a second oil injection port 122 is provided on one end surface of the stripping backing plate 12, and the second oil injection port 122 is connected to the second oil guide channel 121. The second oil injection port 122 is used to communicate with the oil supply device to provide oil to the second oil storage tank 154. This can simplify the structural setting and reduce the processing cost.

[0056] The second oil guide channel 121 is arranged on a side of the stripping back plate 12 close to the stripping plate 13 , so as to facilitate processing by milling technology.

[0057] like Figure 5 and Figure 6 As shown, in some embodiments, a stripping inlet 15 is provided in the assembly hole 30, and the stripping inlet 15 defines an oil guide hole 150. The punch 14 is penetrated in the oil guide hole 150. The oil guide hole 150 includes a first hole section 151, a second hole section 152, and a third hole section 153 connected in sequence from top to bottom. The first hole section 151 is in clearance with the punch, the second hole section 152 defines a second oil storage tank 154, and the third hole section 153 is in clearance with the punch. In this way, the second hole section 152 can be used to form the second oil storage tank 154, and the first hole section 151 and the punch 14 are in clearance, which can prevent the punch 14 from bringing out oil when moving upward. The third hole section 153 is in clearance with the punch 14, so that the oil leaks an appropriate amount each time with the punch 14 to avoid excessive leakage.

[0058] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive and therefore specify the presence of stated features, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0059] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0060] The above are only specific embodiments of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features applied herein.

Claims

1. A stamping die, characterized in that: It includes an upper mold and a lower mold, the upper mold includes a stripper plate, the lower mold includes a lower mold plate and a lower pad which are stacked in sequence from top to bottom, the stripper plate is stacked on the lower mold plate, a first oil storage tank is provided on the lower mold plate, the first oil storage tank opens toward the stripper plate, a first oil injection channel is provided on the lower mold plate or on the lower pad, and the first oil injection channel is connected to the first oil storage tank.

2. The stamping die according to claim 1, characterized in that: An elastic adsorbing member is provided in the first oil storage tank, and the elastic adsorbing member is used for adsorbing oil. The upper surface of the elastic adsorbing member is not lower than the upper surface of the lower template.

3. The stamping die according to claim 2, characterized in that: The first oil injection channel is arranged on a side of the lower pad close to the lower mold plate.

4. The stamping die according to claim 1, characterized in that: The lower template is also provided with a recovery groove, and the recovery groove is connected to the first oil storage tank through a guide channel. An oil return channel is provided on the lower template or on the lower pad, and the oil return channel is connected to the recovery groove.

5. The stamping die according to claim 4, characterized in that: The bottom wall of the guide channel is higher than the bottom wall of the first oil storage tank and lower than the upper edge of the first oil storage tank.

6. The stamping die according to claim 5, characterized in that: The recovery tank and the first oil storage tank are separated by a partition, and the guide channel is defined on the partition.

7. The stamping die according to claim 5, characterized in that: The oil return channel is arranged on a side of the lower pad facing the lower template.

8. The stamping die according to claim 4, characterized in that: An oil receiving port and a first oil filling port are provided on the same end surface of the lower pad, the oil receiving port is communicated with the oil return channel, and the first oil filling port is communicated with the first oil filling channel.

9. The stamping die according to claim 1, characterized in that: An assembly hole is defined on the stripper plate, a punch is inserted into the assembly hole, a second oil storage tank is provided on the periphery of the punch, the second oil storage tank is communicated with the assembly hole, a second oil guide channel is provided on the stripper plate, and the second oil guide channel is communicated with the second oil storage tank.

10. The stamping die according to claim 9, characterized in that: A stripping inlet is provided in the assembly hole, and the stripping inlet defines an oil guide hole. The punch is penetrated in the oil guide hole. The oil guide hole includes a first hole section, a second hole section and a third hole section which are sequentially connected from top to bottom. The first hole section is loosely matched with the punch, the second hole section defines the second oil storage tank, and the third hole section is loosely matched with the punch.

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