Stamping die lewis

Abstract

The utility model relates to a stamping die lewis which comprises a driving block, and an inclined driving face is arranged on the bottom face of the driving block. Comprising a guide block, an inclined guide surface is arranged at the top of the guide block, a telescopic column is movably connected in the guide block and is obliquely arranged, a driving surface is in contact with the top of the telescopic column, and when the driving block is pressed down to the limit position, the driving surface is in contact with the guide surface, and the telescopic column is in contact with the guide surface. The lifting wedge has the advantages that the driving surface of the driving block abuts against the guide surface of the guide block, and the driving block is in contact with the telescopic column, so that the contact area of working surfaces is greatly reduced, the abrasion of the driving block is reduced, the movement stability of the lifting wedge is ensured, and the machining precision of a mold is prevented from being influenced.

Description

Technical Field

[0001] This utility model relates to the field of mold structure, and in particular to a stamping die lifting wedge. Background Technology

[0002] In vehicle parts manufacturing, blanks are fed into a progressive die and undergo multiple consecutive stamping deformations to ultimately form complex-shaped automotive parts. A wedge is one of the mechanical structures in a progressive die; a common type is the angled wedge. The angled wedge moves along its inclined surface, driving the movement of other components in contact with it, ultimately adjusting their phase position.

[0003] Generally, a lifting wedge contacts other components through its overall inclined working surface. However, as the working time increases, the lubricating oil is consumed more quickly, which increases the friction on the working surface. In addition, the large contact area of ​​the working surface makes it prone to wear and tear, which reduces the machining accuracy of the mold.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model discloses a stamping die lifting wedge.

[0006] The technical solution adopted in this utility model is as follows:

[0007] A stamping die lifting wedge includes a driving block with an inclined driving surface on its bottom surface; and a guide block with an inclined guide surface on its top surface. A telescopic column is movably connected to the guide block, and the telescopic column is arranged at an inclination. The driving surface contacts the top of the telescopic column, and when the driving block is pressed down to its limit position, the driving surface contacts the guide surface.

[0008] Furthermore, the guide block has an inclined through hole, and the telescopic column is located in the through hole.

[0009] Furthermore, a kit is provided on the outer side of the telescopic column, and a cavity is provided on the upper part of the through hole one, with the kit located in the cavity.

[0010] Furthermore, the top of the telescopic column is provided with an outwardly extending flange, and the top of the kit abuts against the flange.

[0011] Furthermore, a stepped portion is provided at the inner edge of the top opening of the kit, and the flange is located in the stepped portion.

[0012] Furthermore, a fixing key is inserted into the telescopic column, and the fixing key penetrates the kit.

[0013] Further, it includes an upper die pad plate, and through hole two is provided on the upper die pad plate along its thickness direction, and the driving block is movably arranged in the through hole two.

[0014] Further, it includes an upper die, and a positioning groove is provided on the upper die, and the guiding block is placed in the positioning groove.

[0015] The beneficial effects of the present utility model are as follows:

[0016] 1. During the use of the die, the driving block makes a downward movement in the upper die pressing block, the driving surface of the driving block contacts the top of the telescopic column, and drives the telescopic column to move towards the inside of the die. Eventually, the telescopic column抵触 the part in the die cavity. When the driving block moves to the limit position, the driving surface of the driving block abuts against the guiding surface of the guiding block. Since the driving block and the telescopic column are in contact with each other, the contact area of the working surface is greatly reduced, the wear of the driving block is reduced, the movement stability of the lifting wedge is ensured, and the processing accuracy of the die is prevented from being affected.

[0017] 2. The kit moves together with the telescopic column, avoiding the direct contact between the telescopic column and the inner wall of through hole one, and reducing the frictional loss of the telescopic column.

[0018] 3. The flange of the telescopic column is snap-fitted in the step portion, and the two are mutually restricted. The kit and the telescopic column are locked through the positioning key, avoiding the random movement of the telescopic column and ensuring the movement accuracy of the telescopic column.

[0019] 4. The lifting wedge structure occupies a small space and is applicable to different types of dies. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of a lifting wedge for a stamping die.

[0021] In the figure: 1. Driving block; 11. Driving surface; 2. Guiding block; 21. Guiding surface; 22. Telescopic column; 221. Flange; 222. Fixed key; 23. Kit; 231. Step portion; 24. Through hole one; 25. Cavity; 3. Upper die pad plate; 31. Through hole two; 4. Upper die; 41. Positioning groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following combines the drawings to illustrate the specific embodiments of the present utility model.

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the device proposed by this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of this utility model will become clearer according to the following description. It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions, only used to conveniently and clearly assist in illustrating the purpose of the embodiments of this utility model. Please refer to the accompanying drawings to make the objectives, features, and advantages of this utility model more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only used to complement the content disclosed in the specification, for those skilled in the art to understand and read, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0024] Example:

[0025] A stamping die lifting wedge, such as Figure 1 As shown, it includes a drive block 1 and a guide block 2, which are installed in the upper mold 4 pressure plate 3 and the upper mold 4. The upper mold 4 pressure plate 3 is located above the upper mold 4.

[0026] like Figure 1 As shown, the drive block 1 is installed in the pressure plate 3 of the upper mold 4. The pressure plate 3 of the upper mold 4 has a through hole 31 arranged along its thickness direction. The drive block 1 is located in the through hole 31. During operation, the drive block 1 moves up and down reciprocally in the through hole 31. The bottom surface of the drive block 1 is provided with an inclined drive surface 11.

[0027] like Figure 1 As shown, guide block 2 is arranged in upper mold 4, upper mold 4 has positioning groove 41, positioning groove 41 is arranged in the vertical direction, and guide block 2 is placed in positioning groove 41. The top of guide block 2 is provided with inclined guide surface 21, the inclination angle of guide surface 21 and driving surface 11 is the same. When driving block 1 is pressed down to the limit position, driving surface 11 of guide block 2 contacts guide surface 21 of guide block 2. An inclined through hole 24 is opened in guide block 2, the inclination angle of through hole 24 is the same as that of driving surface 11, and a cavity 25 is provided in the upper part of through hole 24.

[0028] like Figure 1As shown, a telescopic column 22 is movably connected to the guide block 2. The telescopic column 22 is located in the through hole 24, and its tail end can penetrate into the cavity of the upper mold 4. The top of the telescopic column 22 contacts the driving surface 11. During operation, the driving block 1 presses the telescopic column 22, and the telescopic column 22 penetrates into the cavity of the upper mold 4 along the through hole 24, abutting against the parts therein. The top of the telescopic column 22 is provided with an outwardly extending flange 221, and a sleeve 23 is provided on the outer side of the telescopic column 22. The sleeve 23 is located in the cavity 25, which serves as a limiting device. A step portion 231 is provided at the inner edge of the top opening of the sleeve 23. The flange 221 of the telescopic column 22 is embedded in the step portion 231, making the two fit more tightly. A fixing key 222 is inserted into the telescopic column 22 and passes through the sleeve 23, fixing the two together.

[0029] Specific work process:

[0030] When the mold needs to be closed to clamp the parts in the mold, the drive block 1 moves downward and contacts the top surface of the telescopic column 22. This causes the telescopic column 22 to move along the through hole 24. When the assembly 23 moves to the bottom of the cavity 25, that is, when the telescopic column 22 reaches its limit position, the top surface of the telescopic column 22 and the guide surface 21 are in the same plane, and the guide surface is in contact with this plane. The tail end of the telescopic column 22 penetrates into the cavity of the upper mold 4 and abuts against the parts. When the mold opens, all components move in the opposite direction to reset. Throughout the movement of the drive block 1, the drive surface 11 of the drive block 1 mainly contacts the top surface of the telescopic column 22, greatly reducing the possibility of overall wear on the drive surface 11.

[0031] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0032] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A stamping die lifting wedge, characterized in that: It includes a drive block, the bottom surface of which is provided with an inclined drive surface; It includes a guide block, the top of which is provided with an inclined guide surface. A telescopic column is movably connected in the guide block. The telescopic column is arranged at an inclination. The driving surface contacts the top of the telescopic column. When the driving block is pressed down to its limit position, the driving surface contacts the guide surface.

2. The stamping die lifting wedge according to claim 1, characterized in that: The guide block has an inclined through hole, and the telescopic column is located in the through hole.

3. The stamping die lifting wedge according to claim 2, characterized in that: A kit is provided on the outside of the telescopic column, and a cavity is provided on the upper part of the through hole one, with the kit located in the cavity.

4. The stamping die lifting wedge according to claim 3, characterized in that: The top of the telescopic column is provided with an outwardly extending flange, and the top of the kit abuts against the flange.

5. The stamping die lifting wedge according to claim 4, characterized in that: The kit has a stepped portion at the inner edge of the top opening, and the flange is located in the stepped portion.

6. The stamping die lifting wedge according to claim 4, characterized in that: A fixing key is inserted into the telescopic column, and the fixing key penetrates the kit.

7. The stamping die lifting wedge according to claim 1, characterized in that: It includes an upper die pressing plate, on which a second through hole is provided along its thickness direction, and the driving block is movably disposed in the second through hole.

8. The stamping die lifting wedge according to claim 1, characterized in that: It includes an upper mold, which has a positioning groove, and the guide block is placed in the positioning groove.

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