Die cushion assembly for stamping male die, stamping male die and stamping die

Abstract

The utility model discloses a die cushion assembly for a stamping male die, the stamping male die and a stamping die. The stamping male die comprises a blank holder with a ring hole and a male pressing die arranged in the ring hole. A die pad assembly for a stamping punch includes a die pad and a ring pad. And the top surface of the die cushion is used for detachably bearing the convex pressing die. The top face of the ring pad is used for detachably bearing the blank holder, and a pad hole is formed. And the cushion hole is used for the convex pressing die to penetrate through so as to be matched with the blank holder in position and is used for being combined with the die cushion. According to the die cushion assembly for the stamping male die, the stamping male die and the stamping die, the die cushion assembly can be repeatedly used, and the development cost can be reduced.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of stamping device, in particular to a die pad assembly for a stamping punch, a stamping punch and a stamping die. BACKGROUND

[0002] With the rapid development of China's automobile industry, especially the rapid development of new energy vehicles, automobile manufacturers continue to develop new models and continuously innovate, and the competition in the automobile industry is becoming increasingly fierce. Trial production is a key link to verify whether the design of a new vehicle model is correct, and each link of trial production must be strictly completed according to the design data, while the cost and cycle of trial production need to be compressed to the minimum.

[0003] In the related trial production field, stamping dies for trial production, especially drawing stamping dies, are often used to trial produce various new automobile parts. Each time a new part is trial produced, the previous entire set of old stamping dies needs to be discarded, and a new set of stamping dies needs to be developed, so that the new stamping dies are used to trial produce the new part. As a result, when multiple new parts are trial produced, the time is long and the development cost is high, which is not conducive to the development of multiple new parts. SUMMARY

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present disclosure is to provide a die pad assembly for a stamping punch, a stamping punch and a stamping die. The die pad assembly can be repeatedly used, which is conducive to reducing the development cost.

[0005] The present disclosure provides a die pad assembly for a stamping punch, the stamping punch comprising a binder with a ring hole and a punch die provided in the ring hole; the die pad assembly for the stamping punch comprises a die pad, the top surface of which is provided for detachably carrying the punch die; and a ring pad, the top surface of which is provided for detachably carrying the binder, and a pad hole is formed; the pad hole is provided for the punch die to pass through to positionally cooperate with the binder, and is provided for combination with the die pad.

[0006] According to some embodiments provided by the present disclosure, further comprising: a limiting piece, provided with a limiting gap, and movably provided between a limiting position and a disengaging position on the ring pad, and when in the limiting position, the limiting gap limits the binder and the stamping die, and when in the disengaging position, the limiting gap is disengaged from the binder and the stamping die.

[0007] According to some embodiments provided by the present disclosure, the limiting piece is rotatably provided on the ring pad.

[0008] According to some embodiments provided by the present disclosure, the limiting piece is configured to be insertedly matched with the insertion interface of the stamping die.

[0009] According to some embodiments provided by the present disclosure, an inner peripheral wall of the ring pad is provided with a first vertical extension first sliding guide.

[0010] The outer peripheral wall of the die cushion is provided with a second guide sliding part extending in the vertical direction and slidingly matched with the first guide sliding part.

[0011] According to some embodiments provided by the present disclosure, the top surface of the die cushion is provided with a first positioning part capable of being clamped and matched with the matching part of the male punch; and / or

[0012] The top surface of the ring cushion is provided with a second positioning part capable of being clamped and matched with the matching part of the blank holder.

[0013] According to some embodiments provided by the present disclosure, one of the matching part and the first positioning part is formed as a first protrusion, and the other is formed as a first groove capable of being matched with the first protrusion; and / or

[0014] One of the matching part and the second positioning part is formed as a second protrusion, and the other is formed as a second groove capable of being matched with the second protrusion.

[0015] According to some embodiments provided by the present disclosure, the top surface of the die cushion is provided with a plurality of first connecting holes arranged at intervals in the circumferential direction, for being guided and communicated with a plurality of die connecting holes of the male punch one by one; the die cushion assembly for the male punch further comprises a plurality of first connecting members, and the plurality of first connecting members are connected in the plurality of first connecting holes one by one through the plurality of die connecting holes; and / or

[0016] The top surface of the ring cushion is provided with a plurality of second connecting holes arranged at intervals in the circumferential direction, for being guided and communicated with a plurality of ring connecting holes of the blank holder one by one; the die cushion assembly for the male punch further comprises a plurality of second connecting members, and the plurality of second connecting members are connected in the plurality of second connecting holes one by one through the plurality of ring connecting holes.

[0017] The present disclosure further provides a male punch, comprising: the die cushion assembly for the male punch as described above; a blank holder, which is detachably arranged above the ring cushion; and a male punch, which is detachably arranged above the die cushion and penetrates the ring hole.

[0018] The present disclosure further provides a stamping die, comprising: the male punch as described above; and a female punch, which is arranged above the male punch and cooperates with the male punch and the blank holder to form a die cavity.

[0019] Advantages

[0020] (1) The die cushion assembly for the male punch, the male punch and the stamping die of the present disclosure can be repeatedly used, which is beneficial to reduce the development cost.

[0021] (2) The mold pad assembly for the stamping punch, the stamping punch and the stamping die of the present disclosure can limit the position of the limiting piece, improve the stability of the mold when the mold is closed, and do not affect the mold opening. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is an explosion schematic diagram of the stamping die of the embodiment of the present disclosure.

[0023] Figure 2 is a structural schematic diagram of the mold pad of the embodiment of the present disclosure.

[0024] Figure 3 is a structural schematic diagram of the stamping punch of the embodiment of the present disclosure.

[0025] Figure 4 is a structural schematic diagram of the ring pad of the embodiment of the present disclosure.

[0026] Figure 5 is a structural schematic diagram of the blank holder ring of the embodiment of the present disclosure.

[0027] REFERENCE SIGNS:

[0028] 11, mold pad; 1101, first connecting hole; 111, second guide sliding part; 112, first positioning part;

[0029] 12, ring pad; 1201, pad hole; 1202, second connecting hole; 121, first guide sliding part; 122, second positioning part;

[0030] 13, limiting piece; 1301, limiting notch; 1302, limiting recess;

[0031] 800, stamping punch; 81, blank holder ring; 8101, ring hole; 8102, ring connecting hole; 82, stamping punch; 8201, mold connecting hole;

[0032] 900, stamping die; 901, plug-in port; 91, first limiting part; 92, second limiting part. DETAILED DESCRIPTION

[0033] The embodiments of the present disclosure will be described below through specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the messages disclosed in the present disclosure. The present disclosure can also be implemented or applied by means of other different specific embodiments, and the details in the present disclosure can also be modified or changed according to different views and application modules 1 without departing from the spirit of the present disclosure. It should be noted that the embodiments in the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0034] The embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings, so that those skilled in the art to which the present disclosure pertains can easily implement the present disclosure. The present disclosure can be embodied in various ways, and is not limited to the embodiments described herein.

[0035] In the present disclosure, the expressions of "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like mean that the specific features, structures, materials or characteristics represented in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. Also, the specific features, structures, materials or characteristics represented can be combined in any appropriate manner in any one or a group of embodiments or examples. In addition, the different embodiments or examples represented in the present disclosure and the features of the different embodiments or examples can be combined and integrated by those skilled in the art without contradiction, if necessary.

[0036] In addition, the terms "first", "second" are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the present disclosure, the meaning of "a group" is two or more, unless specifically limited otherwise.

[0037] In order to clearly explain the present disclosure, the devices irrelevant to the description are omitted, and the same reference numerals are assigned to the same or similar constituent elements throughout the specification.

[0038] Throughout the specification, when it is said that a certain device is "connected" to another device, it includes not only the case of "direct connection", but also the case of "indirect connection" in which other elements are interposed therebetween. In addition, when it is said that a certain device "includes" a certain constituent element, unless specifically stated to the contrary, other constituent elements are not excluded, but it means that other constituent elements can also be included.

[0039] Although the terms first, second, etc. can be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first interface and a second interface, etc. are described. Also, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises", "comprising", "includes" and / or "including" used herein specify the presence of stated features, steps, operations, elements, modules, items, components, and / or groups thereof, but do not preclude the presence or addition of one or more other features, steps, operations, elements, modules, items, components, and / or groups thereof. As used herein, the terms "or" and "and / or" are construed to be inclusive, or to mean any one or any combination of the listed items. Thus, "A, B or C" or "A, B and / or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B and C". Exceptions to this definition are only present when items are grouped in some manner as in certain forms of correlation, specifically set off like that.

[0040] The professional terms used herein are only used to refer to specific embodiments, and are not intended to limit the disclosure. The singular form used herein, unless the context clearly indicates otherwise, also includes the plural form. The meaning of "comprising" used in the specification is to specify a particular feature, region, integer, step, operation, element and / or component, and does not exclude the presence or addition of other features, regions, integers, steps, operations, elements and / or components.

[0041] Although not defined differently, all terms including technical terms and scientific terms used herein have the same meaning as that generally understood by those skilled in the art to which the disclosure belongs. Terms defined in a commonly used dictionary are additionally interpreted to have a meaning consistent with relevant technical documents and the currently prompted message, unless defined, and should not be over-interpreted as ideal or very formal meanings.

[0042] In the related art, a stamping die includes a stamping punch and a stamping die that can be concave-convex matched. The stamping punch includes a punch block with a certain height and a press ring block with a certain height and sleeved outside the punch block. When a new part is trial-produced, the bottom surface of the stamping die block is a profile surface, and the top surface of the stamping punch, i.e. the top surface of the punch block and the top surface of the press ring block, is also a profile surface formed by matching, and the profile surface of the stamping die and the profile surface of the stamping punch can be matched to form a die cavity with a certain shape, so as to form a part with a certain shape and structure from a stamping material.

[0043] However, each time a new part is trial-produced, due to the different shapes and structures of the new parts required to be trial-produced,

[0044] The previous whole set of old stamping die needs to be discarded, that is, a set of punch modules, blank holder blocks and concave modules are discarded, and a set of punch modules, blank holder blocks and stamping concave modules are developed again, so that new stamping dies are used to trial-produce new parts, thereby causing high development cost and long time when trial-producing multiple new parts, and being not conducive to trial-producing multiple new parts.

[0045] Therefore, the present disclosure provides a die cushion assembly for a punch, which can be repeatedly used in the process of trial-producing multiple new parts, and is conducive to reducing the trial-production cost of multiple parts.

[0046] Figure 1 is an exploded schematic view of a stamping die according to an embodiment of the present disclosure. Referring to Figure 1 The stamping die according to an embodiment of the present disclosure comprises a punch 800 and a stamping concave die 900, wherein the punch 800 comprises a blank holder 81 having a hole 8101 and a punch 82 arranged in the hole 8101. Thus, when the punch 800 cooperates with the stamping concave die 900 to press-form a new part, the top surface of the punch 800, that is, the top surface of the blank holder 81 and the top surface of the punch 82 cooperatively formed, is a profiled surface, which is used to cooperate with the bottom surface of the stamping concave die 900 to form a die cavity suitable for forming a part.

[0047] The die cushion assembly for the punch according to an embodiment of the present disclosure comprises a die cushion 11 and a ring cushion 12. The top surface of the die cushion 11 is used to detachably carry the punch 82.

[0048] Figure 2 is a structural schematic view of the die cushion 11 according to an embodiment of the present disclosure. Figure 3 is a structural schematic view of the punch 82 according to an embodiment of the present disclosure. Referring to Figure 2 and Figure 3The top surface of the die pad 11 is provided with a plurality of first connecting holes 1101 arranged at intervals in the circumferential direction, for one-to-one correspondence with a plurality of die connecting holes 8201 of the male die 82. The die pad assembly further comprises a plurality of first connecting members (not shown in the figure). The plurality of first connecting members are connected one-to-one in the plurality of first connecting holes 1101 through the plurality of die connecting holes 8201. Thus, by connecting the first connecting members in the first connecting holes 1101 and the die connecting holes 8201, the die pad 11 and the male die 82 are connected. By disassembling the first connecting members from the first connecting holes 1101 and the die connecting holes 8201, the die pad 11 and the male die 82 are disassembled. Specifically, the first connecting holes 1101 are four, and the four first connecting holes 1101 are arranged at the four corners of the die pad 11, and are one-to-one correspondence with the four die connecting holes 8201. Each of the first connecting members is a screw, and the first connecting holes 1101 are screw holes. The four first connecting members are connected one-to-one in the four screw holes through the four die connecting holes 8201.

[0049] Referring to Figure 1 The top surface of the die pad 11 is provided with a plurality of first connecting holes 1101 arranged at intervals in the circumferential direction, for one-to-one correspondence with a plurality of die connecting holes 8201 of the male die 82. The die pad assembly further comprises a plurality of first connecting members (not shown in the figure). The plurality of first connecting members are connected one-to-one in the plurality of first connecting holes 1101 through the plurality of die connecting holes 8201. Thus, by connecting the first connecting members in the first connecting holes 1101 and the die connecting holes 8201, the die pad 11 and the male die 82 are connected. By disassembling the first connecting members from the first connecting holes 1101 and the die connecting holes 8201, the die pad 11 and the male die 82 are disassembled. Specifically, the first connecting holes 1101 are four, and the four first connecting holes 1101 are arranged at the four corners of the die pad 11, and are one-to-one correspondence with the four die connecting holes 8201. Each of the first connecting members is a screw, and the first connecting holes 1101 are screw holes. The four first connecting members are connected one-to-one in the four screw holes through the four die connecting holes 8201.

[0050] Figure 4 is a structural schematic diagram of the die pad 11 of the die pad assembly of the present disclosure. Figure 5 is a structural schematic diagram of the die pad assembly of the present disclosure. Referring to Figure 4 and Figure 5 The top surface of the die pad 11 is provided with a plurality of first connecting holes 1101 arranged at intervals in the circumferential direction, for one-to-one correspondence with a plurality of die connecting holes 8201 of the male die 82. The die pad assembly further comprises a plurality of first connecting members (not shown in the figure). The plurality of first connecting members are connected one-to-one in the plurality of first connecting holes 1101 through the plurality of die connecting holes 8201. Thus, by connecting the first connecting members in the first connecting holes 1101 and the die connecting holes 8201, the die pad 11 and the male die 82 are connected. By disassembling the first connecting members from the first connecting holes 1101 and the die connecting holes 8201, the die pad 11 and the male die 82 are disassembled. Specifically, the first connecting holes 1101 are four, and the four first connecting holes 1101 are arranged at the four corners of the die pad 11, and are one-to-one correspondence with the four die connecting holes 8201. Each of the first connecting members is a screw, and the first connecting holes 1101 are screw holes. The four first connecting members are connected one-to-one in the four screw holes through the four die connecting holes 8201.

[0051] Referring to Figure 1The ring pad 12 forms a pad hole 1201 for the male punch 82 to pass through to match the position of the blank holder 81, and the pad hole 1201 is combined with the die pad 11, so that after the die pad 11 is combined inside the pad hole 1201, the top surface of the male punch 82 and the top surface of the blank holder 81 match to form a profile that can match the bottom surface of the stamping female die 900.

[0052] Optionally, the pad hole 1201 is fitted with the die pad 11, so as to position the die pad 11 and the male punch 82 carried by the die pad 11.

[0053] Optionally, referring to Figure 2 and Figure 4 , the inner peripheral wall of the ring pad 12 is provided with a first vertical sliding guide 121. The outer peripheral wall of the die pad 11 is provided with a second vertical sliding guide 111 which is in sliding cooperation with the first vertical sliding guide 121.

[0054] Optionally, the first vertical sliding guide 121 is a plurality of first vertical sliding guides 121 which are arranged in the circumferential direction of the ring pad 12 and correspond to a plurality of second vertical sliding guides 111, and the guiding positioning effect is good.

[0055] Specifically, the first vertical sliding guide 121 is eight first vertical sliding guides 121, and every two first vertical sliding guides 121 are arranged on the same inner wall of the ring pad 12, and eight first vertical sliding guides 121 correspond to eight second vertical sliding guides 111.

[0056] Therefore, when the die pad 11 is fitted into the pad hole 1201, the second vertical sliding guide 111 can slide in the vertical direction of the first vertical sliding guide 121, so that the die pad 11 is smoothly fitted into the pad hole 1201. The cooperation of the first vertical sliding guide 121 and the second vertical sliding guide 111 can guide and position the die pad 11 combined with the ring pad 12, so that the die pad 11 can be smoothly combined with the ring pad 12.

[0057] Optionally, referring to Figure 1 and Figure 2 , the top surface of the die pad 11 is provided with a first positioning part 112 which can be clamped with the matching part of the male punch 82. Therefore, before the male punch 82 is installed or dismounted on the die pad 11, for example, before the first connecting part is connected or dismounted, the male punch 82 can be first positioned at the predetermined position of the die pad 11 through the clamping cooperation of the matching part and the first positioning part 112, so that the male punch 82 is difficult to move relative to the die pad 11, and the male punch 82 and the die pad 11 are smoothly dismounted or installed.

[0058] Optionally, the first positioning part 112 is a plurality of, the plurality of first positioning parts 112 are arranged along the circumference of the mold pad 11 and are arranged one by one corresponding to the plurality of matching parts of the convex mold 82. Specifically, the first positioning part 112 is four, the four first positioning parts 112 are arranged along the circumference of the mold pad 11 and are arranged one by one corresponding to the four matching parts. Therefore, the plurality of first positioning parts 112 can limit the rotation of the convex mold 82 and can position the convex mold 82 at multiple positions, and the positioning effect is good.

[0059] Optionally, one of the matching part and the first positioning part 112 is formed into a first convex part, and the other is formed into a first recess capable of cooperating with the first convex part, and the first convex part and the first recess are connected by concave-convex cooperation.

[0060] Optionally, referring to Figure 1 and Figure 4 , the top surface of the ring pad 12 is provided with a second positioning part 122 capable of being connected with the matching part of the pressure ring 81. Therefore, before the pressure ring 81 is installed or dismounted on the ring pad 12, for example, before the second connecting piece is connected or dismounted, the pressure ring 81 can be positioned and connected at a predetermined position of the ring pad 12 through the connection and cooperation of the matching part and the second positioning part 122, so that the pressure ring 81 is difficult to move relative to the ring pad 12, and the subsequent dismounting or installation of the pressure ring 81 and the ring pad 12 is facilitated.

[0061] Optionally, the second positioning part 122 is a plurality of, the plurality of second positioning parts 122 are arranged along the circumference of the ring pad 12 and are arranged one by one corresponding to the plurality of matching parts of the pressure ring 81. Specifically, the second positioning part 122 is four, the four second positioning parts 122 are arranged along the circumference of the ring pad 12 and are arranged one by one corresponding to the four matching parts. Therefore, the plurality of second positioning parts 122 can limit the rotation of the pressure ring 81 and can position the pressure ring 81 at multiple positions, and the positioning effect is good.

[0062] Optionally, one of the matching part and the second positioning part 122 is formed into a second convex part, and the other is formed into a second recess capable of cooperating with the second convex part, and the second convex part and the second recess are connected by concave-convex cooperation.

[0063] In this way, when a new part is trial-produced, the die pad 11 is detached from the old punch die 82 and the ring pad 12 is detached from the old blank holder 81, and the die pad 11 is re-installed to the new punch die 82 and the ring pad 12 is re-installed to the new blank holder 81, so that the die pad assembly can be repeatedly used under the new blank holder 81 and the new punch die 82 of each new stamping punch die, thereby reducing the development cost of the new stamping punch die.

[0064] Optionally, referring to Figure 1 and Figure 4 , the die pad assembly for the stamping punch die further comprises a limiting piece 13. The limiting piece 13 is movably arranged between a limiting position and a disengaging position on the ring pad 12, so as to limit the blank holder 81 and the stamping die 900 in the limiting position, for example, the edge of the blank holder 81 and the first limiting part 91 of the stamping die 900 are located in the limiting gap 1301, so as to limit the blank holder 81 and the stamping die 900 in the limiting gap 1301, and disengage the limiting gap 1301 from the blank holder 81 and the stamping die 900 in the disengaging position.

[0065] Therefore, when the stamping die 900 is matched with the punch die 82 and the blank holder 81, the limiting gap 1301 can limit the stamping die 900 and the blank holder 81 in the up-down direction, ensuring the stability of the stamping die 900 matched with the punch die 82 and the blank holder 81. When the stamping die 900 needs to be opened from the punch die 82 and the blank holder 81, the limiting piece 13 moves to disengage the limiting gap 1301 from the blank holder 81 and the stamping die 900, thereby facilitating the stamping die 900 to be opened away from the punch die 82 and the blank holder 81.

[0066] Optionally, the limiting piece 13 is a plurality of limiting pieces 13, and the plurality of limiting pieces 13 are arranged along the circumference of the ring pad 12. Specifically, the limiting piece 13 is four limiting pieces 13, and the four limiting pieces 13 are arranged along the circumference of the ring pad 12, which has good limiting effect.

[0067] Optionally, the limiting member 13 is rotatably arranged between the limiting position and the disengaging position on the ring pad 12. Thus, when the punch die 900 is in the closed position with the punch 82 and the pressure ring 81, the limiting member 13 is in the vertical state, and the limiting gap 1301 limits the punch die 900 and the pressure ring 81. When the punch die 900 needs to be opened with the punch 82 and the pressure ring 81, the limiting member 13 rotates from the vertical state to the horizontal state, so that the limiting gap 1301 is disengaged from the pressure ring 81 and the punch die 900.

[0068] Optionally, the limiting member 13 is configured to be inserted into the insertion interface 901 of the punch die 900. Thus, when the punch die 900 moves close to the punch 800 to be closed with the punch 800, the limiting member 13 gradually inserts into the insertion interface 901, thereby guiding the punch die 900 to be closed through the cooperation of the limiting member 13 and the insertion interface 901, which is beneficial to ensure that the punch 800 and the punch die 900 can be moved close to each other in a relatively aligned manner, and the position of the punch 800 can be adjusted again after the punch 800 and the punch die 900 are close to each other, so that the first limiting part 91 of the punch 800 is loaded into the limiting gap 1301, thereby ensuring the stability and alignment accuracy of the punch 800 and the punch die 900 after being closed.

[0069] Optionally, the limiting member 13 is provided with a limiting recess 1302 located on the side of the limiting gap 1301 and limiting the second limiting part 92 of the punch die 900.

[0070] Thus, after the punch die 900 and the punch 800 are closed, the second limiting part 92 abuts against the limiting recess 1302, so that the limiting recess 1302 can limit the punch die 900 in the left-right direction, thereby limiting the left-right movement of the punch die 900.

[0071] The present disclosure also provides a punch 800, which comprises a die pad assembly, a pressure ring 81 and a punch 82 as described above. The pressure ring 81 is detachably arranged above the ring pad 12. The punch 82 is detachably arranged above the die pad 11, and the punch 82 is arranged in the ring hole 8101. Thus, when a new part is developed, the die pad 11 and the ring pad 12 are separately detached from the old punch 82 and the old pressure ring 81 of the old punch 800, and the die pad 11 and the ring pad 12 are reused in the new pressure ring 81 and the new punch 82 of the new punch 800, thereby reducing the development cost of the new part.

[0072] The present disclosure also includes a stamping die including the stamping punch 800 and the stamping die 900 as described above. The stamping die 900 is arranged above the stamping punch 800 and cooperates with the punch 82 and the blank holder 81 to form a die cavity. Thus, when a new part is developed, the die pad 11 and the holder pad 12 are individually detached from the old punch 82 and the old blank holder 81 of the old stamping die and are re-applied to the new blank holder 81 and the new punch 82 of the new stamping die, thereby reducing the development cost of the new part.

[0073] The above embodiments are only illustrative of the principles and effects of the present disclosure, and are not intended to limit the present disclosure. Any modification or change made by those skilled in the art without departing from the spirit and scope of the present disclosure shall be covered by the protection scope of the present disclosure.

Claims

1. A die cushion assembly for a punch die, characterized by, The punch die comprises a binder with a binder hole and a punch die provided in the binder hole; the die pad assembly for the punch die comprises: a die pad with a top surface for detachably carrying the punch die; and a binder pad with a top surface for detachably carrying the binder and forming a pad hole; the pad hole is provided for the punch die to pass through to cooperate with the binder in position and to be combined with the die pad.

2. The die cushion assembly for a punch die of claim 1, wherein, Further comprising: a limiting member provided with a limiting gap and movably provided in the binder pad between a limiting position and a disengaging position, and when in the limiting position, the limiting gap limits the binder and the punch die, and when in the disengaging position, the limiting gap is disengaged from the binder and the punch die.

3. The die cushion assembly for a punch die of claim 2, wherein, The limiting member is rotatably provided in the binder pad.

4. The die cushion assembly for a punch die of claim 2, wherein, The limiting member is configured to be inserted into the insertion port of the punch die.

5. The die cushion assembly for a punch die of claim 1 wherein, The inner peripheral wall of the binder pad is provided with a first vertical sliding guide; The outer peripheral wall of the die pad is provided with a second vertical sliding guide which is in sliding cooperation with the first sliding guide.

6. The die cushion assembly for a punch die of claim 1 wherein, The top surface of the die pad is provided with a first positioning part which is in clamping cooperation with the matching part of the punch die; and / or The top surface of the binder pad is provided with a second positioning part which is in clamping cooperation with the matching part of the binder.

7. The die cushion assembly for a punch die of claim 6, wherein, One of the matching part and the first positioning part is formed as a first protrusion, and the other is formed as a first groove which is in cooperation with the first protrusion; and / or One of the matching part and the second positioning part is formed as a second protrusion, and the other is formed as a second groove which is in cooperation with the second protrusion.

8. The die cushion assembly for a punch die of claim 1 wherein, The top surface of the die pad is provided with a plurality of first connecting holes which are arranged in a circumferential direction and are in one-to-one correspondence with a plurality of die connecting holes of the punch die; the die pad assembly for the punch die further comprises a plurality of first connecting members which are connected in the plurality of first connecting holes in one-to-one correspondence through the plurality of die connecting holes; and / or The top surface of the binder pad is provided with a plurality of second connecting holes which are arranged in a circumferential direction and are in one-to-one correspondence with a plurality of binder connecting holes of the binder; the die pad assembly for the punch die further comprises a plurality of second connecting members which are connected in the plurality of second connecting holes in one-to-one correspondence through the binder connecting holes.

9. A punch, characterized in that Comprise: the die pad assembly for the punch die according to any one of claims 1-8; a binder which is detachably provided above the binder pad; and a punch die which is detachably provided above the die pad and is provided in the binder hole.

10. A stamping die characterized by, Comprise: the punch die according to claim 9; and a punch die which is detachably provided above the die pad and is provided in the binder hole.

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