Upper die mechanism and stamping die

Abstract

This application relates to the field of stamping forming technology, and particularly to an upper die mechanism and a stamping die. The upper die mechanism includes an upper template, a blank holding member, and a punch; the punch passes through the blank holding member; the punch has a first movable portion and a second movable portion; the second movable portion is perpendicular to the blank holding member, and a first preset angle is formed between the first movable portion and the blank holding member; when the blank holding member moves in a first direction, it can drive the first movable portion and the second movable portion to move, so that the first movable portion opens or closes relative to the second movable portion. In this application, the punch is composed of two parts, namely a second movable portion and first movable portions located on both sides of the second movable portion. During the process of pressing and demolding the workpiece, it can move along with the movement of the blank holding member, which can not only ensure the pressing of the workpiece, but also ensure that the formed workpiece is easily demolded from the feeding mechanism.

Description

Technical Field

[0001] This application relates to the technical field of stamping forming, and particularly to an upper die mechanism and a stamping die. Background Art

[0002] In the process of stamping a workpiece, the pressing action of the upper die and the lower die is often utilized to form the formed workpiece.

[0003] However, for some workpieces, during demolding, the upper die will adhere to the formed workpiece, making it difficult for the formed workpiece to fall off the upper die, which affects subsequent production.

[0004] Therefore, there is an urgent need for an upper die mechanism and a stamping die to solve the technical problems existing in the prior art to a certain extent. Summary of the Invention

[0005] The purpose of this application is to provide an upper die mechanism and a stamping die to solve, to a certain extent, the technical problem in the prior art that the upper die will adhere to the formed workpiece, making it difficult for the formed workpiece to fall off the upper die.

[0006] This application provides an upper die mechanism, including an upper template, a blank holding member, and a punch; the blank holding member is connected to the upper template, and the blank holding member can move along a first direction; the punch passes through the blank holding member; the punch has a first movable part and a second movable part;

[0007] The second movable part is perpendicular to the blank holding member, and the first movable part forms a first preset angle with the blank holding member;

[0008] When the blank holding member moves along the first direction, it can drive the first movable part and the second movable part to move, so that the first movable part opens or closes relative to the second movable part.

[0009] In the above technical solution, further, there are two first movable parts; the two first movable parts are symmetrically arranged on both sides of the second movable part with respect to the axis of the second movable part.

[0010] In the above technical solution, further, the blank holding member includes a blank holding plate and a blank holding guide block provided on the blank holding plate;

[0011] The blank holding plate is connected to the upper template;

[0012] The blank holding guide block has a guide channel, and the guide channel forms the first preset angle with the blank holding plate;

[0013] The first movable part can pass through the guide channel.

[0014] In the above technical solution, further, a guiding sliding seat is further included;

[0015] The guiding sliding seat is arranged on the upper template;

[0016] One end of the first movable part is slidably arranged on the guiding sliding seat and the other end passes through the blank holding member.

[0017] In the above technical solution, further, the guiding sliding seat and the blank holding member form a second preset angle.

[0018] In the above technical solution, further, a first driving member and a second driving member are further included;

[0019] The first driving member has a first driving part and a first fixing part; the second driving member has a second driving part and a second fixing part;

[0020] The first fixing part and the second fixing part are both fixed on the upper template;

[0021] The first driving part is connected to the blank holding plate and is used for driving the blank holding plate to move along the first direction;

[0022] The second driving part is connected to the second movable part and is used for driving the second movable part to move along the first direction.

[0023] In the above technical solution, further, an auxiliary member is further included, and the auxiliary member includes a third fixing part and a sliding part;

[0024] The third fixing part is fixed on the upper template;

[0025] One end of the sliding part is slidably connected to the third fixing part, and the other end is arranged between the first driving part and the blank holding plate.

[0026] In the above technical solution, further, the first driving member is a spring and the second driving member is a cylinder.

[0027] This application further provides a stamping die, including a lower die mechanism and the above upper die mechanism that can be buckled on the lower die mechanism;

[0028] The lower die mechanism includes a lower template, a female die and an ejector;

[0029] The female die is arranged on the lower template, and the ejector is arranged in the female die.

[0030] In the above technical solution, further, lower mold limit blocks are provided at both ends of the lower mold plate, and upper mold guide blocks are provided at both ends of the upper mold plate and at positions corresponding to the lower mold limit blocks;

[0031] When the upper die mechanism moves toward the lower die mechanism, the upper die guide block can be inserted into the lower die limit block.

[0032] Compared with the prior art, the present invention has the following advantages:

[0033] The present application provides an upper mold mechanism, comprising an upper mold plate, a pressing member, and a punch; the pressing member is connected to the upper mold plate and can move in a first direction; the punch passes through the pressing member; the punch has a first movable portion and a second movable portion; the second movable portion is perpendicular to the pressing member, and a first preset angle is formed between the first movable portion and the pressing member;

[0034] When the pressing member moves along the first direction, it can drive the first movable part and the second movable part to move, so that the first movable part opens to or closes to the second movable part.

[0035] Specifically, the punch in this application is composed of two parts, namely a second movable part and a first movable part located on both sides of the second movable part. During the process of pressing and demolding the material, it can move along with the movement of the pressing component, which can not only ensure the pressing of the material, but also ensure that the formed material can be easily demolded from the loading mechanism.

[0036] The present application also provides a stamping die, comprising a lower die mechanism and the above-mentioned upper die mechanism that can be buckled onto the lower die mechanism; the lower die mechanism comprises a lower template, a die and an ejector; the die is arranged in the lower template, and the ejector is arranged in the die.

[0037] Specifically, based on the above analysis of the upper die mechanism, the stamping die can also ensure the pressing of the material part and the demoulding of the formed material part from the upper die mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0039] Figure 1Schematic diagram of the open state of the upper die mechanism provided in the first embodiment of the present application (the first movable part is opened relative to the second movable part);

[0040] Figure 2 Schematic diagram of the closed state of the upper die mechanism provided in the first embodiment of the present application (the first movable part is closed relative to the second movable part);

[0041] Figure 3 Schematic diagram of the upper die mechanism provided in the first embodiment of the present application with the blank holder hidden in the open state;

[0042] Figure 4 Schematic diagram of the upper die mechanism provided in the first embodiment of the present application with the blank holder hidden in the closed state;

[0043] Figure 5 Schematic diagram of the open state of the lower die mechanism provided in the second embodiment of the present application;

[0044] Figure 6 Schematic diagram of the closed state of the lower die mechanism provided in the second embodiment of the present application;

[0045] Figure 7 Schematic diagram of the upper die mechanism being latched onto the lower die mechanism provided in the second embodiment of the present application;

[0046] Figure 8 Cross-sectional view of the upper die mechanism provided in the second embodiment of the present application in the open state;

[0047] Figure 9 Cross-sectional view of the upper die mechanism provided in the second embodiment of the present application in the closed state.

[0048] Reference numerals:

[0049] 100 - Upper die mechanism; 101 - Upper template; 102 - Blank holding member; 103 - Punch; 104 - First direction; 105 - First movable part; 106 - Second movable part; 107 - First preset angle; 108 - Blank holder; 109 - Blank holding guide block; 110 - Guide channel; 111 - Guide sliding seat; 112 - First driving member; 113 - Second driving member; 114 - Third fixing part; 115 - Sliding part; 116 - Lower die mechanism; 117 - Lower template; 118 - Die cavity; 119 - Ejector; 120 - Lower die limit block; 121 - Upper die guide block; 122 - Round hole; 123 - Workpiece; 124 - Negative angle. Detailed implementation manners

[0050] Next, the technical solutions of the present application will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present application.

[0051] The components of the embodiments of the present application that are typically depicted and shown in the accompanying drawings herein can be arranged and designed in a variety of different configurations. Thus, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the present application claimed, but merely represents selected embodiments of the present application.

[0052] Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present application.

[0053] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0054] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0055] Embodiment 1

[0056] The following refers to Figures 1 to 4 Describe the upper die mechanism according to some embodiments of the present application.

[0057] In this embodiment, an upper die mechanism is provided. In actual application, the upper die mechanism is used in cooperation with the lower die mechanism for the forming and processing of workpieces. The upper die mechanism includes an upper template 101, a blank holding member 102, and a punch 103. Taking the direction in the normal use state of the upper die mechanism as an example, the blank holding member 102 is connected to the upper template 101 and is located below the upper template 101. The blank holding member 102 can move along the first direction 104 (where the first direction 104 here refers to the vertical direction in the normal use state of the upper die mechanism), that is, the blank holding member 102 can move towards or away from the upper template 101.

[0058] The punch 103 passes through the blank holder member 102 and can drive the punch 103 to move in the vertical direction when the blank holder member 102 moves in the vertical direction; when forming and processing a workpiece, first place the workpiece on the lower die mechanism 116, and then the upper die mechanism moves integrally downward toward the lower die mechanism 116 under the drive of a drive component (the drive component is a conventional setting in the field of stamping forming, and those skilled in the art can understand its structure), and the punch 103 is used to perform die pressing on the workpiece; specifically, the punch 103 in this application has a first movable part 105 and a second movable part 106; more specifically, two first movable parts 105 are provided; the two first movable parts 105 are symmetrically arranged on both sides of the second movable part 106 with respect to the axis of the second movable part 106. That is, the punch 103 with an integral structure in the prior art is divided into two parts in this application, and the second movable part 106 is perpendicular to the blank holder member 102, and the first movable part 105 forms a first preset angle 107 with the blank holder member 102. Since the blank holder member 102 moves in the vertical direction, that is to say, when the blank holder member 102 moves in the vertical direction, the second movable part 106 will move in the vertical direction along with the blank holder member 102, and the first movable part 105 will move in a direction inclined upward or downward at a third preset angle with the blank holder member 102 under the drive of the blank holder member 102; the third preset angle here is complementary to the first preset angle 107.

[0059] It should be noted that: the above first preset angle 107 is preferably an acute angle, and its specific angle needs to be calculated according to the formation of product ejection.

[0060] Specifically, in combination with Figure 1 As shown, before die pressing the workpiece, the first movable part 105 is open to the second movable part 106, which can be understood as the upper die mechanism being in an open state. During the die pressing process of the workpiece: first, the drive component drives the upper die mechanism to move in the vertically downward direction. When the upper die mechanism contacts the lower die mechanism 116, the drive component continues to drive the feeding mechanism to move in the vertically downward direction in the vertically downward direction. At this time, the blank holder member 102 on the upper die mechanism 100 will move in the vertically upward direction relative to the feeding plate (this is the process of the upper die mechanism 100 and the lower die mechanism 116 being closed); specifically, the second movable part 106 will move in the vertically upward direction, and the first movable part 105 will move in a direction inclined upward at a third angle with the blank holder member 102, and finally the first movable parts 105 on both sides of the second movable part 106 are closed on the second movable part 106 at the first position. At this time, the upper die mechanism 100 changes from an open state to a closed state.

[0061] The above first position refers to the position where the workpiece is die pressed.

[0062] Specifically, after the die pressing and forming of the workpiece, the first movable part 105 changes from being closed on the second movable part 106 to being opened on the second movable part 106, which can be understood as the upper die mechanism 100 being in an open state. During the demolding process of the workpiece: First, the driving component drives the upper die mechanism 100 to move in the vertically upward direction. At this time, the blank holding member 102 on the upper die mechanism 100 will move in the vertically downward direction relative to the loading plate (this is the process of the upper die mechanism 100 separating from the lower die mechanism 116); Specifically, the second movable part 106 will move in the vertically downward direction, and the first movable part 105 will move in an inclined downward direction at a third angle with the blank holding member 102. Finally, the first movable parts 105 on both sides of the second movable part 106 are opened on the second movable part 106 at the second position. At this time, the upper die mechanism 100 changes from a closed state to an open state.

[0063] The above-mentioned second position refers to the position where the workpiece is demolded and separated from the punch 103.

[0064] In addition, when the upper die mechanism 100 changes from an open state to a closed state, the length of the punch 103 formed by the first movable part 105 and the second movable part 106 is denoted as L1; when the upper die mechanism 100 changes from a closed state to an open state, the length of the punch 103 formed by the first movable part 105 and the second movable part 106 is denoted as L2; it can be seen from the figure that L2 < L1. That is to say, when the workpiece needs to be die pressed and formed, the length of the punch 103 can ensure normal die pressing; when the workpiece is die pressed and formed and needs to be demolded from the loading member, since the overall length of the punch 103 is less than the length during die pressing, the formed workpiece can easily fall off from the loading mechanism.

[0065] In summary, in this application, the punch 103 is composed of two parts, namely the second movable part 106 and the first movable part 105. During the die pressing and demolding processes of the workpiece, it can move along with the movement of the blank holding member 102, which can not only ensure the die pressing of the workpiece but also ensure that the formed workpiece is easily demolded from the loading mechanism.

[0066] In this embodiment, the blank holding member 102 includes a blank holding plate 108 and a blank holding guide block 109 provided on the blank holding plate 108;

[0067] The blank holder 108 is connected to the upper template 101 and is located below the upper template 101; the blank holder guide block 109 has a guide channel 110, and the first preset angle 107 is formed between the guide channel 110 and the blank holder 108; the first movable part 105 can pass through the guide channel 110 so that the first preset angle 107 is formed between the first movable part 105 and the blank holder 108.

[0068] Specifically, when the blank holder 108 moves in the vertically upward direction, the guide block will drive the first movable part 105 to close on the second movable part 106 in a direction inclined upward at a third preset angle with respect to the blank holder 108; when the blank holder 108 moves in the vertically downward direction, the guide block will drive the first movable part 105 to open on the second movable part 106 in a direction inclined downward at a third preset angle with respect to the blank holder 108.

[0069] In this embodiment, the upper die mechanism 100 further includes a guide slide 111; the guide slide 111 is disposed on the upper template 101 and is located between the upper template 101 and the blank holder 108; one end of the first movable part 105 is slidably disposed on the guide slide 111 and the other end passes through the blank holding member 102; further, a second preset angle is formed between the guide slide 111 and the blank holder 108, and it should be noted that the second preset angle here is the same as the above-mentioned third preset angle; furthermore, the guide slide 111 is symmetrically disposed about the axis of the second movable part 106; when the blank holder 108 moves in the vertically upward direction, the guide block will drive one end of the first movable part 105 to close on the second movable part 106 in a direction inclined upward at a third preset angle with respect to the blank holder 108, and the other end of the first movable part 105 slides on the guide slide 111; when the blank holder 108 moves in the vertically downward direction, the guide block will drive one end of the first movable part 105 to open on the second movable part 106 in a direction inclined downward at a third preset angle with respect to the blank holder 108, and the other end of the first movable part 105 slides on the guide slide 111.

[0070] In summary, the guide slide 111 plays a guiding role for the first movable part 105.

[0071] In this embodiment, the upper die mechanism 100 further includes a first driving member 112 and a second driving member 113; the first driving member 112 has a first driving portion and a first fixing portion; the second driving member 113 has a second driving portion and a second fixing portion; the first fixing portion and the second fixing portion are both fixed to the upper template 101; the first driving portion is connected to the pressure plate 108 and is configured to drive the pressure plate 108 to move along the first direction 104; the second driving portion is connected to the second movable portion 106 and is configured to drive the second movable portion 106 to move along the first direction 104.

[0072] Specifically, the first driving member 112 is a spring, one end of the spring is the first fixing portion and is fixed to the upper template 101, and the other end of the spring is the first driving portion and is connected to the pressure plate 108; the second driving member 113 is a cylinder, one end of the cylinder is the second fixing portion and is fixed to the upper template 101, and the other end of the cylinder is the second driving portion and is connected to the second movable portion 106.

[0073] More specifically, during mold clamping: when the driving assembly drives the upper die mechanism 100 to be clamped onto the lower die mechanism 116 in the vertically downward direction, the spring is compressed, the pressure member 102 moves relative to the upper template 101 in the vertically upward direction, the first movable portion 105 moves obliquely upward at a third preset angle with respect to the pressure plate 108, the cylinder retracts, and the second movable portion 106 moves in the vertically upward direction; during mold opening: the spring resets and elongates, the pressure member 102 moves relative to the upper template 101 in the vertically downward direction, the first movable portion 105 moves obliquely downward at a third preset angle with respect to the pressure plate 108, the cylinder retracts, and the second movable portion 106 moves in the vertically downward direction.

[0074] In this embodiment, the upper die mechanism 100 further includes an auxiliary member, the auxiliary member includes a third fixing portion 114 and a sliding portion 115; the third fixing portion 114 is fixed to the upper template 101; one end of the sliding portion 115 is slidably connected to the third fixing portion 114, and the other end is disposed between the first driving portion and the pressure plate 108.

[0075] Specifically, the sliding part 115 has four end faces. The left end face is slidably connected to the third fixing part 114, the upper end face is connected to the first driving part, and the lower end face is connected to the blank holder 108. That is to say, the upper end face of the sliding part 115 is connected to the first driving part of the spring. Further, the compression and reset of the spring will act on the blank holder 108 through the sliding part 115. When the spring is compressed, one end of the sliding part 115 moves upward in the vertical direction on the third fixing part 114, and at this time, the blank holder 108 can be driven to move upward in the vertical direction through the sliding part 115. When the spring extends, the process is opposite to the above, and no more description is made here.

[0076] Embodiment 2

[0077] Combined with Figures 5 - 9 As shown, the present application further provides a stamping die, including a lower die mechanism 116 and an upper die mechanism 100 as described above that can be fastened to the lower die mechanism 116.

[0078] The lower die mechanism 116 includes a lower template 117, a female die 118, and an ejector 119.

[0079] The female die 118 is disposed on the lower template 117, and the ejector 119 is disposed in the female die 118, and the ejector 119 can move in the vertical direction on the groove.

[0080] During the actual use process, combined with Figures 5 - 7 As shown, first, the ejector 119 is extended upward in the vertical direction out of the groove, and then the workpiece 123 is placed on the ejector 119. Finally, the driving component is used to drive the upper die mechanism 100 so that the punch 103 moves toward the workpiece 123, and finally the workpiece 123 is formed by pressing the die.

[0081] In this embodiment, lower die limit blocks 120 are provided at both ends of the lower template 117, and upper die guide blocks 121 are provided at both ends of the upper template 101 corresponding to the positions of the lower die limit blocks 120.

[0082] When the upper die mechanism 100 moves toward the lower die mechanism 116, the upper die guide blocks 121 can be inserted into the lower die limit blocks 120.

[0083] In summary, combined with Figure 8 and Figure 9, it is not difficult to see that after the workpiece 123 is die-molded, a negative angle 124 is formed at the position of the round hole 122 on the ground. That is to say, at this time, the molded workpiece 123 wraps the punch 103 and cannot be removed. To overcome this technical problem, the present application provides a stamping die. Based on the analysis of the upper die component, the punch 103 in the stamping die of the present application can not only perform stamping on the workpiece 123, but also realize the demolding of the formed workpiece 123, which is convenient and simple.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An upper mold mechanism, comprising an upper mold plate, a pressing member, and a punch; the pressing member is connected to the upper mold plate and can move along a first direction; the punch passes through the pressing member; characterized in that, The male mold has a first movable part and a second movable part; The second movable portion is perpendicular to the pressing member, and a first preset angle is formed between the first movable portion and the pressing member; When the pressing member moves along the first direction, it can drive the first movable part and the second movable part to move, so that the first movable part opens to or closes to the second movable part; The pressing member includes a pressing plate and a pressing guide block provided on the pressing plate; The pressing plate is connected to the upper template; The press guide block is provided with a guide channel, and the guide channel forms the first preset angle with the press plate; The first movable portion is capable of passing through the guide channel; The upper die mechanism further includes a guide slide; The guide slide is arranged on the upper template; One end of the first movable portion is slidably disposed on the guide slide and the other end passes through the pressing member; The upper mold mechanism further includes a first driving member and a second driving member; The first driving member has a first driving portion and a first fixing portion; the second driving member has a second driving portion and a second fixing portion; The first fixing portion and the second fixing portion are both fixed to the upper template; The first driving portion is connected to the pressing plate and is used to drive the pressing plate to move along the first direction; The second driving portion is connected to the second movable portion and is used to drive the second movable portion to move along the first direction.

2. The upper mold mechanism according to claim 1, characterized in that: There are two first movable parts; the two first movable parts are symmetrically arranged on both sides of the second movable part about the axis of the second movable part.

3. The upper mold mechanism according to claim 1, characterized in that: The guide slide and the pressing member form a second preset angle.

4. The upper mold mechanism according to claim 1, characterized in that: Also included is an auxiliary member, the auxiliary member including a third fixing portion and a sliding portion; The third fixing portion is fixed to the upper template; One end of the sliding portion is slidably connected to the third fixing portion, and the other end is disposed between the first driving portion and the pressing plate.

5. The upper mold mechanism according to claim 1, characterized in that: The first driving member is a spring, and the second driving member is a cylinder.

6. A stamping die, characterized in that: comprising a lower mold mechanism and an upper mold mechanism as claimed in any one of claims 1 to 5 that can be fastened to the lower mold mechanism; The lower die mechanism includes a lower die plate, a concave die and an ejector; The concave mold is arranged on the lower mold plate, and the ejector is arranged in the concave mold.

7. The stamping die according to claim 6, characterized in that: Lower die limit blocks are provided at both ends of the lower die plate, and upper die guide blocks are provided at both ends of the upper die plate and at positions corresponding to the lower die limit blocks; When the upper die mechanism moves toward the lower die mechanism, the upper die guide block can be inserted into the lower die limit block.

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