Stamping die with replaceable stamping die head

Abstract

The utility model discloses a stamping die with a replaceable stamping die head, which belongs to the technical field of stamping dies and comprises a lower die and an upper die, the upper die is arranged on the upper side of the lower die, a mounting groove is formed in the upper die, a stamping head is inserted in the mounting groove in a sliding manner, an adjusting groove is formed in the upper die, and a lifting frame is connected in the adjusting groove in a sliding manner. The bottom end of the lifting frame is fixedly connected with a plurality of limiting rods, the bottom ends of the limiting rods movably penetrate through the upper die into the mounting groove, a plurality of limiting holes are formed in the punching head and correspond to the limiting rods, and a jacking mechanism is arranged between the lifting frame and the adjusting groove; the jacking mechanism controls the lifting frame and the multiple limiting rods to move, the multiple limiting rods are matched with the multiple limiting holes to limit the stamping head in an insertion mode, and compared with bolt fixing, the insertion fixing mode can effectively prevent the situation that the stamping head is unstable after long-time stamping, and the stamping quality is improved. And the stamping head is prevented from influencing stamping forming of products due to stability.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, and more specifically to a stamping die with a replaceable stamping die head. Background Art

[0002] A stamping die is a special process equipment used to process materials (metal or non-metal) into parts (or semi-finished products) during cold stamping. It is called a cold stamping die (commonly known as a cold stamping die). The die installed on the press is used to apply pressure to the material to cause it to separate or plastically deform, thereby obtaining the desired parts.

[0003] At present, stamping dies often need to be replaced during actual use depending on the product. In order to improve the efficiency of die change, some stamping dies adopt the method of replacing the stamping die head to adapt to different types of products, thereby reducing the die change time. However, most of the existing stamping dies with replaceable die heads are usually fixed with bolts. After long-term use, the bolts are prone to loosening, resulting in instability of the stamping head, which will affect the molding of the product. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a stamping die with a replaceable stamping die head, aiming to solve the problem that the stamping die with a replaceable die head in the prior art is usually fixed with bolts, and after long-term use, the bolts are prone to loosening, resulting in instability of the stamping head, which will affect the molding of the product.

[0006] 2. Technical solution

[0007] In order to solve the above problems, the utility model adopts the following technical solutions:

[0008] A stamping die with a replaceable stamping die head comprises a lower die and an upper die, the upper die is arranged on the upper side of the lower die, a mounting groove is bored on the upper die, a stamping head is slidably inserted in the mounting groove, an adjusting groove is bored in the upper die, a lifting frame is slidably connected in the adjusting groove, a plurality of limit rods are fixedly connected to the bottom end of the lifting frame, and the bottom ends of the plurality of limit rods movably pass through the upper die to the mounting groove, a plurality of limit holes are bored on the stamping head, and the plurality of limit holes correspond to the plurality of limit rods, a lifting mechanism is arranged between the lifting frame and the adjusting groove, and the lifting mechanism is used to lift the lifting frame to facilitate the removal and replacement of the stamping head after the plurality of limit rods are moved.

[0009] As a preferred solution of the utility model, the lifting mechanism includes a pull plate, which is slidably connected to the adjustment slot located at the lower side of the lifting frame, a pull rod is fixedly connected to the pull plate, and one end of the pull rod movably passes through the outer side of the upper mold, a connecting rod assembly is movably hinged between the pull plate and the lifting frame through a hinge shaft, and a spring is sleeved on the outer surface of the pull rod.

[0010] As a preferred solution of the utility model, an insert rod is slidably connected to the upper mold, and two positioning grooves are cut on the pull rod, and the two positioning grooves match the insert rod.

[0011] As a preferred solution of the utility model, a limiting groove group is drilled on the punch head, a rotating stopper assembly is rotatably connected to the upper die, and the rotating stopper assembly matches the limiting groove group.

[0012] As a preferred solution of the utility model, a rubber pad is fixedly connected in the installation groove, and the rubber pad corresponds to the punching head.

[0013] 3. Beneficial effects

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] 1) In this solution, when the stamping die needs to be replaced, the lifting frame and multiple limit rods are controlled by the lifting mechanism to move, so that the multiple limit rods cooperate with the multiple limit holes to limit the stamping head by insertion. Compared with the bolt fixation, the insertion fixation method can effectively prevent the stamping head from becoming unstable under long-term stamping, and avoid the stamping head affecting the stamping forming of the product due to stability problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the front view of the utility model;

[0017] Figure 2 It is a cross-sectional view of the utility model;

[0018] Figure 3 It is a three-dimensional diagram of some structures in the utility model;

[0019] Figure 4 For the utility model Figure 3 Exploded diagram.

[0020] Description of the numbers in the figure:

[0021] 1. Lower die; 2. Upper die; 3. Mounting slot; 4. Punch head; 5. Adjustment slot; 6. Lifting frame; 7. Limit rod; 801. Pull plate; 802. Pull rod; 803. Connecting rod assembly; 804. Spring; 9. Insert rod; 10. Positioning slot; 11. Limit slot group; 12. Rotating stop block assembly; 13. Rubber pad; 14. Limit hole. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] Example:

[0026] See also Figure 1-4 A stamping die with a replaceable stamping die head comprises a lower die 1 and an upper die 2, the upper die 2 is arranged on the upper side of the lower die 1, a mounting groove 3 is chiseled on the upper die 2, a stamping head 4 is slidably inserted in the mounting groove 3, an adjusting groove 5 is chiseled in the upper die 2, a lifting frame 6 is slidably connected in the adjusting groove 5, a plurality of limit rods 7 are fixedly connected to the bottom end of the lifting frame 6, and the bottom ends of the plurality of limit rods 7 movably pass through the upper die 2 to the mounting groove 3, a plurality of limit holes 14 are chiseled on the stamping head 4, and the plurality of limit holes 14 correspond to the plurality of limit rods 7, a lifting mechanism is arranged between the lifting frame 6 and the adjusting groove 5, and the lifting mechanism is used to lift the lifting frame 6 to facilitate the removal and replacement of the stamping head 4 after the plurality of limit rods 7 are moved.

[0027] In this embodiment, the upper die 2 and the lower die 1 are installed on a press, and the press controls the upper die 2 to move downward to punch the product on the lower die 1 through the punch head 4 to form the product. When the stamping die needs to replace the punch head 4, the lifting frame 6 is lifted up in the adjustment slot 5 through the lifting mechanism, and multiple limit rods 7 are moved out from the multiple limit holes 14 so that the punch head 4 is not restricted, so that it can be taken out from the installation slot 3 for replacement. After the punch head 4 is replaced, the lifting mechanism is automatically reset, and the multiple limit rods 7 are inserted into the multiple limit holes 14 again, so that the replaced punch head 4 remains fixed in the installation slot 3, and the upper die 2 can punch and form the product on the lower die 1 again through the punch head 4.

[0028] Specifically, the lifting mechanism includes a pull plate 801, which is slidably connected to the adjustment slot 5 and located at the lower side of the lifting frame 6. A pull rod 802 is fixedly connected to the pull plate 801, and one end of the pull rod 802 movably passes through the outer side of the upper mold 2. A connecting rod assembly 803 is movably hinged between the pull plate 801 and the lifting frame 6 through a hinge shaft, and a spring 804 is sleeved on the outer surface of the pull rod 802.

[0029] In this embodiment, when the punch head 4 needs to be replaced, the pull rod 802 is pulled to drive the pull plate 801 to move, and the pull plate 801 lifts the lifting frame 6 through the connecting rod assembly 803, so that the multiple limit rods 7 move upward and move out of the multiple limit holes 14. At the same time, the spring 804 is squeezed by the pull plate 801 and is in a compressed state. When the punch head 4 is replaced, the replaced punch head 4 is inserted into the installation groove 3 so that the multiple limit holes 14 correspond to the limit rods 7, and then the pull rod 802 is released. The pull plate 801 and the pull rod 802 are reset under the elastic action of the spring 804, so that the lifting frame 6 moves downward and resets through the connecting rod assembly 803, and the multiple limit rods 7 are respectively inserted into the multiple limit holes 14. The punch head 4 is fixed in the installation groove 3 as the multiple limit rods 7 are inserted.

[0030] Specifically, an insert rod 9 is slidably connected to the upper mold 2 , and two positioning grooves 10 are drilled on the pull rod 802 , and the two positioning grooves 10 match the insert rod 9 .

[0031] In this embodiment, when the multiple limit rods 7 are inserted into the multiple limit holes 14, the insertion rod 9 corresponds to and is inserted into a positioning groove 10. The insertion rod 9 limits the pull rod 802 through a positioning groove 10, so that the lifting frame 6 remains stable. The multiple limit rods 7 further stabilize the fixation of the punch head 4. When the multiple limit rods 7 are moved out of the multiple limit holes 14, the insertion rod 9 corresponds to and is inserted into another positioning groove 10, which can enable the lifting frame 6 to remain stable after rising, and facilitate the replacement of the punch head 4 to be inserted into the installation groove 3.

[0032] Specifically, a limiting groove group 11 is formed on the punch head 4 , and a rotating stopper assembly 12 is rotatably connected to the upper die 2 , and the rotating stopper assembly 12 matches the limiting groove group 11 .

[0033] In this embodiment, after the punch head 4 is replaced, the two limit groove groups 11 correspond to the two rotating block assemblies 12, and the two rotating block assemblies 12 are respectively inserted into the two limit groove groups 11 to limit the punch head 4, thereby further stabilizing the punch head 4.

[0034] Specifically, a rubber pad 13 is fixedly connected in the installation groove 3 , and the rubber pad 13 corresponds to the punching head 4 .

[0035] In this embodiment, after the punch head 4 is installed in the installation groove 3, it contacts the rubber pad 13. The rubber pad 13 increases the tightness between the punch head 4 and the installation groove 3, so that the punch head 4 is further kept stable.

[0036] Working principle: When the stamping die needs to replace the punching head 4, the pull rod 802 is pulled to drive the pull plate 801 to move, and the pull plate 801 lifts the lifting frame 6 through the connecting rod assembly 803, so that the multiple limit rods 7 move upward and move out of the multiple limit holes 14, and at the same time, the spring 804 is squeezed by the pull plate 801 in a compressed state. When the punching head 4 is replaced, the replaced punching head 4 is inserted into the installation groove 3 so that the multiple limit holes 14 correspond to the limit rods 7, and then the pull rod 802 is released, and the pull plate 801 and the pull rod 802 are reset under the elastic action of the spring 804, so that the lifting frame 6 moves downward and resets through the connecting rod assembly 803, and the multiple limit rods 7 are respectively inserted into the multiple limit holes 14. The punching head 4 is fixed in the installation groove 3 with the insertion of the multiple limit rods 7, and the upper mold 2 can punch the product on the lower mold 1 again through the punching head 4.

[0037] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the utility model according to the technical solution and improved ideas of the utility model, which should be included in the protection scope of the utility model.

Claims

1. A stamping die with a replaceable stamping die head, comprising a lower die (1) and an upper die (2), characterized in that: The upper die (2) is arranged on the upper side of the lower die (1); a mounting groove (3) is bored on the upper die (2); a punch head (4) is slidably inserted in the mounting groove (3); an adjustment groove (5) is bored in the upper die (2); a lifting frame (6) is slidably connected in the adjustment groove (5); a plurality of limit rods (7) are fixedly connected to the bottom end of the lifting frame (6); and the bottom ends of the plurality of limit rods (7) movably penetrate the upper die (2) to the mounting groove (3); a plurality of limit holes (14) are bored on the punch head (4); and the plurality of limit holes (14) correspond to the plurality of limit rods (7); a lifting mechanism is arranged between the lifting frame (6) and the adjustment groove (5); the lifting mechanism is used to lift the lifting frame (6) to facilitate the removal and replacement of the punch head (4) after the plurality of limit rods (7) are moved.

2. A stamping die with a replaceable stamping die head according to claim 1, characterized in that: The lifting mechanism comprises a pull plate (801), the pull plate (801) being slidably connected to the adjusting groove (5) and located at the lower side of the lifting frame (6), a pull rod (802) being fixedly connected to the pull plate (801), and one end of the pull rod (802) being movably connected to the outer side of the upper mold (2), a connecting rod assembly (803) being movably hinged between the pull plate (801) and the lifting frame (6) via a hinge shaft, and a spring (804) being sleeved on the outer surface of the pull rod (802).

3. A stamping die with a replaceable stamping die head according to claim 2, characterized in that: The upper mold (2) is slidably connected with an insertion rod (9), and the pull rod (802) is provided with two positioning grooves (10), and the two positioning grooves (10) match the insertion rod (9).

4. A stamping die with a replaceable stamping die head according to claim 3, characterized in that: A limiting groove group (11) is cut on the punch head (4), and a rotating block assembly (12) is rotatably connected to the upper die (2), and the rotating block assembly (12) matches the limiting groove group (11).

5. A stamping die with a replaceable stamping die head according to claim 4, characterized in that: A rubber pad (13) is fixedly connected in the installation groove (3), and the rubber pad (13) corresponds to the punching head (4).

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