Tapered wedge mechanism of stamping die

Abstract

The utility model relates to the technical field of stamping dies, and discloses a stamping die wedge mechanism which comprises an upper die, a male die, a material pressing block, a wedge upper sliding block, a wedge lower driving block and a return spring, the male die, the material pressing block, the wedge upper sliding block, the wedge lower driving block and the male die are all located below the upper die, the wedge lower driving block is located on one side of the male die, and the return spring is located on the other side of the male die. The material pressing block is connected with the upper die, the wedge upper sliding block can be connected with the upper die in the direction close to or away from the male die, the wedge upper sliding block is matched with the wedge lower driving block, one end of the return spring is connected with the upper die, the other end of the return spring is connected with the wedge upper sliding block, and the return spring and the material pressing block are located on the two sides of the wedge upper sliding block. The return spring is arranged on the side, far away from the material pressing block, of the sliding block on the wedge, so that the avoiding range of the material pressing block is reduced, the strength of the material pressing block is guaranteed, the overall strength of the die is improved, and the production safety of the die is further guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, and in particular to a stamping die inclined wedge mechanism. Background Technology

[0002] In the production process of cold stamping dies, there are situations where the part shape requires the use of a wedge mechanism for side punching and side trimming. The wedge mechanism is a mechanism that changes the stamping direction, achieving a certain angle between the punching / trimming direction and the die stamping direction.

[0003] like Figure 1 As shown, the existing stamping die wedge mechanism includes an upper die 1, a pressure block 3 connected to the upper die 1, and an upper wedge slider 4, as well as a punch 2 and a lower wedge drive block 5 located below the upper die 1, and a side punching assembly or a side trimming assembly connected to the upper wedge slider 4. To achieve wedge retraction, a retraction spring 6 is also provided. Currently, the retraction spring 6 connects the upper wedge slider 4 and the upper die 1, and is positioned between the upper wedge slider 4 and the pressure block 3. During die closing and stamping, the part 7 is placed on the punch 2, the upper die 1 presses down, the pressure block 3 presses down on the part 7, the upper wedge slider 4 contacts the lower wedge drive block 5, and due to force decomposition, the upper wedge slider 4 drives the retraction spring 6 to move closer to the pressure block 3. The retraction spring 6 is compressed, and then the side punching assembly begins to perform the side punching action. During mold opening and material removal, the upper mold 1 moves the wedge upper slider 4 and the pressure block 3 upwards. Due to the decrease in force, the return spring 6 is released, simultaneously pushing the wedge upper slider 4 to move the side punch assembly away from the pressure block 3, completing the return. Since the current return spring 6 is located between the wedge upper slider 4 and the pressure block 3, the upper mold 1 needs to be designed with an impact surface for the return spring 6, and the pressure block 3 needs to be accordingly designed to avoid it, resulting in an increased suspended range and severely affecting its structural strength. In other words, the presence of the return spring 6 between the wedge upper slider 4 and the pressure block 3 occupies the movement space of the wedge upper slider 4, leading to a larger overall mold size. It also occupies the connection space between the pressure block 3 and the upper mold 1, resulting in a smaller thickness of the connection between the pressure part 7 below the pressure block 3 and the upper mold 1. This makes the connection between the pressure block 3 and the upper mold 1 more fragile and weak, prone to breakage during stamping, causing production failures and mold damage. Utility Model Content

[0004] The purpose of this invention is to provide a stamping die wedge mechanism with high structural strength and safer production.

[0005] In order to achieve the above object, the utility model provides a punch die wedge mechanism, including upper die, male die, pressure piece, wedge upper slide block, wedge lower drive block and back spring, the male die the pressure piece the wedge upper slide block the wedge lower drive block and the male die all are located below the upper die, the wedge lower drive block is located one side of the male die, the pressure piece is connected with the upper die, the wedge upper slide block can be connected with the upper die in the direction of approaching or moving away from the male die, the wedge upper slide block is matched with the wedge lower drive block, one end of the back spring is connected with the upper die, the other end of the back spring is connected with the wedge upper slide block, the back spring and the pressure piece are located both sides of the wedge upper slide block.

[0006] As a preferred scheme, still include connecting shaft, the upper die is equipped with installation part, the installation part is located one side of the wedge upper slide block, the installation part is equipped with through -hole, the connecting shaft passes through the through -hole, one end of the connecting shaft is connected with the wedge upper slide block, the back spring is sleeved on the connecting shaft and is located one side of the installation part away from the wedge upper slide block, the other end of the connecting shaft is equipped with plug, and the back spring is located between the plug and the installation part.

[0007] As a preferred scheme, the plug can move along the length direction of the connecting shaft.

[0008] As a preferred scheme, the outer surface of the connecting shaft is equipped with external thread, the plug is nut, and the plug is threadedly connected with the connecting shaft.

[0009] As a preferred scheme, the wedge upper slide block is equipped with connecting hole, the inner wall of the connecting hole is equipped with internal thread, and the connecting shaft is threadedly connected with the connecting hole.

[0010] As a preferred scheme, the installation part is L type mechanism, and the horizontal section of the installation part is located one side of the vertical section away from the wedge upper slide block.

[0011] As a preferred scheme, still include side punch assembly, the side punch assembly includes punch, the punch is connected with the wedge upper slide block, the pressure piece is equipped with guide hole, and the punch is arranged in the guide hole.

[0012] As a preferred scheme, the wedge upper slide block is equipped with recess, the recess is located one side of the wedge upper slide block away from the wedge lower drive block, and the punch is located in the recess.

[0013] As a preferred scheme, the first guide sliding block is detachably connected with the upper sliding block of the wedge, and the second guide sliding block is detachably connected with the lower driving block of the wedge.

[0014] As a preferred scheme, the return spring is a rectangular spring.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] The utility model discloses a return spring is arranged on the side of the upper sliding block of the wedge away from the pressing block, reduces the pressing block range of avoidance, thereby guaranteeing the strength of the pressing block, improves the overall strength of the mould, further guarantees the safety of mould production. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structure schematic diagram of the prior art's stamping die wedge mechanism.

[0018] Figure 2 It is the structure schematic diagram of the stamping die wedge mechanism of the utility model embodiment when opening the mould.

[0019] Figure 3 It is the structure schematic diagram of the stamping die wedge mechanism of the utility model embodiment when closing the mould.

[0020] In the drawing, 1 is an upper die, 101 is a mounting portion, 2 is a punch, 3 is a pressing block, 301 is a guide hole, 4 is an upper sliding block of wedge, 401 is a recessed portion, 5 is a lower driving block of wedge, 6 is a return spring, 7 is a part, 8 is a connecting shaft, 9 is a plug, 10 is a first guide sliding block, 11 is a second guide sliding block, and 12 is a punch. DETAILED DESCRIPTION

[0021] The specific implementation of the utility model will be described in further detail below in combination with the drawings and embodiments. The following embodiments are used to illustrate the utility model, but not to limit the scope of the utility model.

[0022] In the description of the utility model, it is necessary to explain that, the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the utility model, it is necessary to explain that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0024] In addition, in the description of the utility model, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0025] Example one

[0026] As Figure 2 And Figure 3 The utility model embodiment preferred embodiment of a punch press die wedge mechanism, including upper die 1, male die 2, pressure block 3, wedge upper slide block 4, wedge lower drive block 5 and back spring 6, male die 2, pressure block 3, wedge upper slide block 4, wedge lower drive block 5 and male die 2 are located below upper die 1, wedge lower drive block 5 is located in one side of male die 2, pressure block 3 is connected with upper die 1, wedge upper slide block 4 can be connected with upper die 1 in the direction of approaching or away from male die 2, wedge upper slide block 4 is matched with wedge lower drive block 5, one end of back spring 6 is connected with upper die 1, the other end of back spring 6 is connected with wedge upper slide block 4, back spring 6 and pressure block 3 are located on both sides of wedge upper slide block 4. In the embodiment, by setting back spring 6 on the side of wedge upper slide block 4 away from pressure block 3, the pressure block 3 avoiding range is reduced, so as to ensure the strength of pressure block 3, improve the overall strength of the die, further ensure the safety of die production.

[0027] When the die is closed, the part 7 is placed on the punch 2, the upper die 1 is pressed down, the pressure block 3 presses the part 7, the inclined wedge upper slide block 4 contacts the inclined wedge lower drive block 5, the inclined wedge upper slide block 4 moves right due to force resolution, and the inclined wedge upper slide block 4 drives the return spring 6 to move right horizontally. When the die is opened, the upper die 1 drives the inclined wedge upper slide block 4 and the pressure block 3 to move up, the return spring 6 recovers due to force reduction, and the return spring 6 drives the inclined wedge upper slide block 4 to move left horizontally, thereby completing the return.

[0028] In the embodiment, when the upper die 1 moves down, the inclined wedge upper slide block 4 moves close to the punch 2, and the return spring 6 is stretched. When the upper die 1 moves up, the return spring 6 recovers, and drives the inclined wedge upper slide block 4 to reset.

[0029] Embodiment Two

[0030] The embodiment is different from the embodiment one in that, on the basis of the embodiment one, the embodiment further illustrates the connection of the return spring 6, the upper die 1 and the inclined wedge upper slide block 4.

[0031] In the embodiment, the inclined wedge mechanism of the stamping die further includes a connecting shaft 8. The upper die 1 is provided with a mounting portion 101 located at one side of the inclined wedge upper slide block 4. The mounting portion 101 is provided with a through hole, and the connecting shaft 8 passes through the through hole. One end of the connecting shaft 8 is connected with the inclined wedge upper slide block 4. The return spring 6 is sleeved on the connecting shaft 8 and located at the side of the mounting portion 101 away from the inclined wedge upper slide block 4. The other end of the connecting shaft 8 is provided with a plug 9, and the return spring 6 is located between the plug 9 and the mounting portion 101. When the upper die 1 moves down, the inclined wedge upper slide block 4 slides along the inclined wedge lower drive block 5, drives the inclined wedge upper slide block 4 to move in the direction close to the punch 2 (moves right in the embodiment), and the connecting shaft 8 moves together with the inclined wedge upper slide block 4, thereby compressing the return spring 6. When the upper die 1 moves up, the return spring 6 recovers, drives the connecting shaft 8 to move, and thereby drives the inclined wedge upper slide block 4 to reset. In the embodiment, the return spring 6 is sleeved on the connecting shaft 8, so that the return spring 6 is compressed and recovers along the axial direction, the inclined wedge upper slide block 4 moves more stably, and the service life of the return spring 6 is longer. Further, the return spring 6 is located at the side of the mounting portion 101 away from the inclined wedge upper slide block 4, so that the size of the mechanism is smaller compared with the case that the return spring 6 is located between the mounting portion 101 and the inclined wedge upper slide block 4. Figure 2 And Figure 3 In the embodiment, the inclined wedge mechanism of the stamping die further includes a connecting shaft 8. The upper die 1 is provided with a mounting portion 101 located at one side of the inclined wedge upper slide block 4. The mounting portion 101 is provided with a through hole, and the connecting shaft 8 passes through the through hole. One end of the connecting shaft 8 is connected with the inclined wedge upper slide block 4. The return spring 6 is sleeved on the connecting shaft 8 and located at the side of the mounting portion 101 away from the inclined wedge upper slide block 4. The other end of the connecting shaft 8 is provided with a plug 9, and the return spring 6 is located between the plug 9 and the mounting portion 101. When the upper die 1 moves down, the inclined wedge upper slide block 4 slides along the inclined wedge lower drive block 5, drives the inclined wedge upper slide block 4 to move in the direction close to the punch 2 (moves right in the embodiment), and the connecting shaft 8 moves together with the inclined wedge upper slide block 4, thereby compressing the return spring 6. When the upper die 1 moves up, the return spring 6 recovers, drives the connecting shaft 8 to move, and thereby drives the inclined wedge upper slide block 4 to reset. In the embodiment, the return spring 6 is sleeved on the connecting shaft 8, so that the return spring 6 is compressed and recovers along the axial direction, the inclined wedge upper slide block 4 moves more stably, and the service life of the return spring 6 is longer. Further, the return spring 6 is located at the side of the mounting portion 101 away from the inclined wedge upper slide block 4, so that the size of the mechanism is smaller compared with the case that the return spring 6 is located between the mounting portion 101 and the inclined wedge upper slide block 4.

[0032] Further, the plug 9 of the embodiment can move along the length direction of the connecting shaft 8, and the elasticity of the return spring 6 can be adjusted by adjusting the position of the plug 9 on the connecting shaft 8.

[0033] Specifically, the outer surface of the connecting shaft 8 is provided with external threads, the plug 9 is a nut, and the plug 9 is threadedly connected with the connecting shaft 8. By screwing the plug 9, the installation and position connection of the plug 9 and the connecting shaft 8 can be realized, which is convenient to use and easy to disassemble and replace.

[0034] In addition, the inclined wedge upper slide block 4 is provided with a connecting hole, the inner wall of the connecting hole is provided with internal threads, and the connecting shaft 8 is threadedly connected with the connecting hole, so that the connecting shaft 8 and the inclined wedge upper slide block 4 are easy to disassemble and connect stably.

[0035] In addition, the installation part 101 of the embodiment is an L-shaped mechanism, and the horizontal section of the installation part 101 is located on the side of the vertical section away from the inclined wedge upper slide block 4. The horizontal section of the installation part 101 can play a role in protecting the return spring 6.

[0036] Optionally, the return spring 6 is a rectangular spring. Under the same space condition, the rectangular cross-section cylindrical spiral compression spring has greater rigidity, absorbs more energy, and has a characteristic line closer to a straight line and a rigidity closer to a constant than a circular cross-section cylindrical spiral compression spring.

[0037] The other structures of the embodiment are the same as those of Embodiment One, which will not be described here again.

[0038] Embodiment Three

[0039] The difference between the embodiment and Embodiment Two is that, on the basis of Embodiment Two, the stamping die inclined wedge mechanism of the embodiment is further described.

[0040] In the embodiment, the stamping die inclined wedge mechanism further includes a side punching assembly, the side punching assembly includes a punch 12, the punch 12 is connected with the inclined wedge upper slide block 4, the pressure block 3 is provided with a guide hole 301, and the punch 12 is arranged in the guide hole 301. When the upper die 1 descends, the inclined wedge upper slide block 4 is in contact with the inclined wedge lower driving block 5 and slides, drives the inclined wedge upper slide block 4 to move in the direction of approaching the male die 2 (moves to the right in the figure) Figure 2 and Figure 3 The punch 12 moves along the guide hole 301 and punches a hole on the part 7.

[0041] In addition, the inclined wedge upper slide block 4 of the embodiment is provided with a recessed part 401, the recessed part 401 is located on the side of the inclined wedge upper slide block 4 away from the inclined wedge lower driving block 5, and the punch 12 is located in the recessed part 401. The recessed part 401 is arranged to install the punch 12, which is conducive to increasing the sliding length of the inclined wedge and reducing the size of the die.

[0042] Further, the first guide sliding block 10 is detachably connected with the inclined wedge upper sliding block 4, the second guide sliding block 11 is detachably connected with the inclined wedge lower driving block 5, and the second guide sliding block 11 is used to contact and slide with the first guide sliding block 10. By adopting the first guide sliding block 10 and the second guide sliding block 11, the inclined wedge upper sliding block 4 and the inclined wedge lower driving block 5 can be protected. When the first guide sliding block 10 and the second guide sliding block 11 are worn due to friction and cause the contact surface to be not fitted after the mold is used for a certain period of time, the first guide sliding block 10 and the second guide sliding block 11 can be replaced, and the inclined wedge upper sliding block 4 and the inclined wedge lower driving block 5 do not need to be re-made.

[0043] The other structure of the embodiment is the same as that of the second embodiment, and details are not repeated here.

[0044] The working process of the utility model is as follows: during the die closing stamping, the part 7 is placed on the punch 2, the upper die 1 is pressed downward, the pressure block 3 presses the part 7, the inclined wedge upper sliding block 4 contacts and slides with the inclined wedge lower driving block 5, the inclined wedge upper sliding block 4 moves in the direction of approaching the punch 2 due to force decomposition, Figure 2 and Figure 3 moves to the right), the connecting shaft 8 moves together with the inclined wedge upper sliding block 4, so that the plug 9 on the connecting shaft 8 abuts against the return spring 6, drives the return spring 6 to move horizontally to the right, makes the return spring 6 compress under force, and then the side punching assembly starts to perform the side punching action, specifically, the punch 12 extends out of the guide hole 301 on the pressure block 3 and punches a hole on the part 7. During the die opening and material taking, the upper die 1 drives the inclined wedge upper sliding block 4 and the pressure block 3 to move upward, the return spring 6 recovers due to the decrease of force, and simultaneously drives the connecting shaft 8 to move to the left, so as to drive the inclined wedge upper sliding block 4 and the side punching assembly to move to the left, and the return is completed.

[0045] In summary, the utility model provides a stamping die, which sets the return spring 6 on the side of the inclined wedge upper sliding block 4 away from the pressure block 3, reduces the avoiding range of the pressure block 3, guarantees the strength of the pressure block 3, improves the overall strength of the die, and further guarantees the safety of the die production.

[0046] The above only describes the preferred embodiments of the utility model, and it should be noted that, for ordinary technical personnel in the technical field, some improvements and replacements can be made without departing from the technical principles of the utility model, and these improvements and replacements should also be regarded as the protection range of the utility model.

Claims

1. A press tool wedge mechanism, characterized in that, The utility model provides a mould, including upper mould (1), male die (2), pressure piece (3), inclined wedge upper sliding block (4), inclined wedge lower drive block (5) and retreat spring (6), male die (2), pressure piece (3), inclined wedge upper sliding block (4), inclined wedge lower drive block (5) and male die (2) all are located the below of upper mould (1), inclined wedge lower drive block (5) is located one side of male die (2), pressure piece (3) is connected with upper mould (1), inclined wedge upper sliding block (4) can be connected with upper mould (1) along the direction of approaching or away from male die (2), inclined wedge upper sliding block (4) is matched with inclined wedge lower drive block (5), one end of retreat spring (6) is connected with upper mould (1), the other end of retreat spring (6) is connected with inclined wedge upper sliding block (4), retreat spring (6) and pressure piece (3) are located the both sides of inclined wedge upper sliding block (4).

2. The stamping die cam mechanism of claim 1, wherein, Still include connecting shaft (8), upper mould (1) is equipped with installation part (101), installation part (101) is located one side of inclined wedge upper sliding block (4), installation part (101) is equipped with through -hole, connecting shaft (8) passes through the through -hole, one end of connecting shaft (8) is connected with inclined wedge upper sliding block (4), retreat spring (6) is sleeved on connecting shaft (8) and is located one side of installation part (101) away from inclined wedge upper sliding block (4), the other end of connecting shaft (8) is equipped with plug (9), and retreat spring (6) is located between plug (9) and installation part (101).

3. The stamping die cam mechanism of claim 2, wherein, Plug (9) can move along the length direction of connecting shaft (8).

4. The stamping die cam mechanism of claim 3, wherein, The outer surface of connecting shaft (8) is provided with external thread, the plug (9) is a nut, the plug (9) is screwed with the connecting shaft (8).

5. The press tool ramp mechanism of claim 4, wherein, The inclined wedge upper sliding block (4) is provided with a connecting hole, and the inner wall of the connecting hole is provided with an internal thread.

6. The stamping die cam mechanism of claim 2, wherein, The installation part (101) is an L-shaped mechanism, and the horizontal segment of the installation part (101) is located on the side away from the inclined wedge upper sliding block (4) of the vertical segment.

7. The stamping die wedge mechanism of claim 1, wherein, The utility model provides a mould, including upper mould (1), male die (2), pressure piece (3), inclined wedge upper sliding block (4), inclined wedge lower drive block (5) and retreat spring (6), male die (2), pressure piece (3), inclined wedge upper sliding block (4), inclined wedge lower drive block (5) and male die (2) all are located the below of upper mould (1), inclined wedge lower drive block (5) is located one side of male die (2), pressure piece (3) is connected with upper mould (1), inclined wedge upper sliding block (4) can be connected with upper mould (1) along the direction of approaching or away from male die (2), inclined wedge upper sliding block (4) is matched with inclined wedge lower drive block (5), one end of retreat spring (6) is connected with upper mould (1), the other end of retreat spring (6) is connected with inclined wedge upper sliding block (4), retreat spring (6) and pressure piece (3) are located the both sides of inclined wedge upper sliding block (4).

8. The stamping die cam mechanism of claim 7, wherein, Still include connecting shaft (8), upper mould (1) is equipped with installation part (101), installation part (101) is located one side of inclined wedge upper sliding block (4), installation part (101) is equipped with through -hole, connecting shaft (8) passes through the through -hole, one end of connecting shaft (8) is connected with inclined wedge upper sliding block (4), retreat spring (6) is sleeved on connecting shaft (8) and is located one side of installation part (101) away from inclined wedge upper sliding block (4), the other end of connecting shaft (8) is equipped with plug (9), and retreat spring (6) is located between plug (9) and installation part (101). Plug (9) can move along the length direction of connecting shaft (8). The outer surface of connecting shaft (8) is provided with external thread, the plug (9) is a nut, the plug (9) is screwed with the connecting shaft (8). The inclined wedge upper sliding block (4) is provided with a connecting hole, and the inner wall of the connecting hole is provided with an internal thread. The installation part (101) is an L-shaped mechanism, and the horizontal segment of the installation part (101) is located on the side away from the inclined wedge upper sliding block (4) of the vertical segment. Still include side punch assembly, side punch assembly includes punch (12), punch (12) is connected with inclined wedge upper sliding block (4), pressure piece (3) is equipped with guide hole (301), punch (12) is arranged in guide hole (301). The inclined wedge upper sliding block (4) is provided with a recess (401), and the recess (401) is located on the side away from the inclined wedge lower drive block (5) of the inclined wedge upper sliding block (4).

9. The stamping die wedge mechanism of claim 1, wherein, The opposite side of the upper slide block (4) of the wedge is provided with a first guide slide block (10), the first guide slide block (10) is detachably connected with the upper slide block (4) of the wedge, the opposite side of the lower driving block (5) of the wedge is provided with a second guide slide block (11), the second guide slide block (11) is detachably connected with the lower driving block (5) of the wedge, and the second guide slide block (11) is used for contacting and slidingly matching with the first guide slide block (10).

10. A press tool wedge mechanism according to any one of claims 1-9, characterized in that The return spring (6) is a rectangular spring.

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