Progressive die oblique composite bending mechanism

Abstract

The utility model discloses an oblique composite bending mechanism for a progressive die. The oblique composite bending mechanism is used for a stamping progressive die to bend and form a product by less than 90 degrees. The device comprises an upper clamping plate and a stripper plate, wherein the upper clamping plate is arranged above the stripper plate; a group of symmetrical fixed punches are arranged in the upper clamping plate, and a clamping part is arranged at one end of each fixed punch; the inclined punch is clamped in the clamping part, and the inclined punch is hinged to the clamping part through a first fixing pin; an oblique movement bending male die is arranged at one end, far away from the fixed punch, of the oblique punch, and is embedded and clamped on the oblique punch; a group of symmetrical inclined movement guide rail seats are arranged in the stripper plate, the two inclined movement guide rail seats are arranged in the stripper plate in a left-right spaced mode, and the inclined punches and the inclined movement bending male dies are arranged in the inclined movement guide rail seats in an embedded and clamped mode. According to the stamping die, a common stamping die has the stamping process capacity of products with sharp ends, and the manufacturing cost of the products is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a continuous mold oblique composite bending mechanism. Background Art

[0002] The opening and closing of the existing stamping die is achieved by the upper die making a simple straight up and down movement. However, with the diversification of products, the shapes of products have become more and more complex. For some products with complex shapes, when the bending angle of the product is less than 90 degrees, the bending forming process of the traditional stamping die is difficult to achieve bending forming less than 90 degrees in one step. If the product is to be formed less than 90 degrees, the die must increase the steps, which limits the development of the die.

[0003] Traditional bending parts can only move vertically up and down during the process, so the maximum forming angle that the mold can achieve is 90 degrees. Utility Model Content

[0004] In order to solve the problems existing in the prior art, the utility model aims to provide a continuous die oblique composite bending mechanism, which is used for stamping continuous dies to bend products less than 90 degrees, and a one-step bending process.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A continuous die oblique composite bending mechanism comprises an upper clamping plate and a stripping plate, wherein the upper clamping plate is arranged above the stripping plate; a group of symmetrical fixed punches are arranged in the upper clamping plate, and a clamping portion is arranged at one end of the fixed punches;

[0007] The oblique punch is clamped in the clamping portion, and the oblique punch is hinged to the clamping portion through a first fixing pin;

[0008] An oblique moving bending punch is provided at one end of the oblique punch away from the fixed punch, and the oblique moving bending punch is embedded and clamped on the oblique punch;

[0009] A group of symmetrical oblique motion guide rail seats are arranged in the stripping plate, two oblique motion guide rail seats are arranged in the stripping plate at intervals on the left and right, and an oblique punch and an oblique motion bending punch are embedded in the oblique motion guide rail seats.

[0010] Further, in some embodiments, a movable wedge is provided in the clamping portion, the movable wedge is hinged to the clamping portion through a second fixing pin, and an oblique punch is provided on a side of the movable wedge away from the clamping portion; a long strip-shaped limiting groove is provided on the oblique punch, and a first fixing pin is provided in the limiting groove.

[0011] Furthermore, in some embodiments, an inclined second oblique motion guide rail is provided on the inner wall close to one side of two adjacent oblique motion guide rail seats, and the second oblique motion guide rail is arranged on the inner wall of the oblique motion guide rail seat in an inverted right-angled trapezoid. The spacing between the inclined second oblique motion guide rails on the adjacent inner walls of the two oblique motion guide rail seats gradually decreases downward, and the spacing between adjacent second oblique motion guide rails gradually approaches from top to bottom in an inverted trapezoidal shape.

[0012] Further, in some embodiments, a first oblique motion guide rail is provided in the oblique motion guide rail seat, and the first oblique motion guide rail is arranged on a side of the oblique motion guide rail seat away from the second oblique motion guide rail; the track surface of the first oblique motion guide rail is arranged parallel to the track surface of the second oblique motion guide rail.

[0013] Furthermore, in some embodiments, an adjustment rod is provided at one end of the fixed punch away from the clamping portion, a second adjustment bevel is provided at one end of the fixed punch close to the adjustment rod, a first adjustment bevel matching the second adjustment bevel is provided on the adjustment rod, and the first adjustment bevel is tightly arranged against the second adjustment bevel.

[0014] Further, in some embodiments, the oblique punch and the oblique motion bending punch are embedded between the first oblique motion guide rail and the second oblique motion guide rail, the inner surface of the oblique motion bending punch is flush with the inner surface of the oblique punch, the oblique motion bending punch and the oblique punch have inner surfaces in the same inclined plane, and the end of the oblique motion bending punch protrudes outward from the oblique punch.

[0015] Furthermore, in some embodiments, a lower die insert is provided below the oblique punch, a forming bending die is provided in the lower die insert, and a bending ladder pedestal corresponding to the oblique motion bending punch is provided at one end of the forming bending die away from the lower die insert. The bending ladder pedestal and the oblique motion bending punch have the same inclined surface, and a bending stamping working surface is formed between the bending ladder pedestal and the oblique motion bending punch.

[0016] Furthermore, in some embodiments, a working platform is formed between the upper end of the bending ladder pedestal and the lower end of the oblique motion guide rail seat, and the bent product is placed between the lower end of the oblique motion guide rail seat and the upper end of the bending ladder pedestal during stamping.

[0017] Furthermore, in some embodiments, the upper pad is sequentially provided with an upper clamping plate, a back stripping plate, a stripping plate, and a lower template downwardly, an adjustment rod is provided between the upper pad and the upper clamping plate, the adjustment rod card is arranged in the mounting groove of the upper pad, the movable wedge is arranged in the back stripping plate, the oblique punch and the oblique motion guide rail seat are arranged in the stripping plate, and the lower mold insert is arranged in the lower template.

[0018] The utility model adopts a fixed punch connected with an oblique punch through a fixed pin to push the oblique motion punch to make an oblique motion in the oblique motion guide rail seat. After the oblique motion bending punch contacts the material, the material is pushed downward to make an oblique bend along a specified trajectory, thereby realizing compound angle forming less than 90 degrees in one working step, greatly improving the process capability of the mold, enabling an ordinary stamping mold to have the stamping process capability of cutting-edge products, and reducing the product manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a cross-sectional schematic diagram of an embodiment of the utility model;

[0020] Figure 2 This is an internal structure diagram of an embodiment of the utility model;

[0021] Figure 3 It is a schematic diagram of the structure of an embodiment of the utility model;

[0022] Figure 4 It is a schematic diagram of the internal structure of an embodiment of the utility model;

[0023] Figure 5 Schematic diagram of adjusting the punch depth according to an embodiment of the utility model.

[0024] Description of the markings in the figure:

[0025] Upper pad 21, upper clamping plate 22, back stripping plate 23, stripping plate 24, lower template 25, mounting groove 26, adjusting rod 27, first adjusting inclined surface 28, fixed punch 31, movable wedge 32, oblique punch 33, oblique motion bending punch 34, lower die insert 35, forming bending die 36, second fixing pin 37, limiting groove 38, first fixing pin 39, second adjusting inclined surface 41, bending ladder seat 42, clamping groove 43, clamping portion 47, oblique motion guide rail seat 51, first oblique motion guide rail 52, second oblique motion guide rail 53, bending product 61. DETAILED DESCRIPTION

[0026] In order to further understand the features, technical means, and specific purposes and functions achieved by the present invention, the embodiments in this application and the features in the embodiments can be combined with each other without conflict. In order to further understand the features, technical means, and specific purposes and functions achieved by the present invention, and to analyze the advantages and spirit of the present invention, a further understanding is obtained through the following detailed description of the present invention in combination with the accompanying drawings and specific implementation methods.

[0027] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "front", "rear" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0028] This utility model is mainly used in various RJ, TYPE-C and other series of products. Figure 1 As shown, attached Figure 1 The overall structure of the present application is shown in the figure. The present application includes an upper clamping plate 22 and a stripping plate 24. The upper clamping plate 22 is arranged above the stripping plate 24. A group of symmetrical fixed punches 31 are provided in the upper clamping plate 22, and a clamping portion 47 is provided at one end of the fixed punch 31.

[0029] See attached Figure 4 As shown, attached Figure 4 The relevant structure of the adjustment rod 27 of the present application is shown in the figure. The end of the fixed punch 31 away from the clamping part 47 is provided with the adjustment rod 27, and the end of the fixed punch 31 close to the adjustment rod 27 is provided with a second adjustment bevel 41. The adjustment rod 27 is provided with a first adjustment bevel 28 that matches the second adjustment bevel 41, and the first adjustment bevel 28 is tightly arranged with the second adjustment bevel 41. The adjustment rod 27 and the head of the fixed punch 31 cooperate through the bevels. The feed amount of the upper mold part oblique movement bending punch 34 can be controlled by moving the adjustment rod 27 forward or backward, thereby controlling the angle of the product after forming. The material of the product has rebound, and the angle after bending will be too large. When the angle is too large, it can be adjusted by the adjustment rod 27. The products all need to be assembled and matched. When the assembly angle is not suitable, the angle of the product can be conveniently adjusted to match the product assembly.

[0030] See attached Figure 2 As shown, attached Figure 2The relevant structure of the punch part of the present application is shown in FIG. 3 . An oblique punch 33 is provided at one end of the fixed punch 31 close to the holding portion 47, and the oblique punch 33 is clamped in the holding portion 47. Further, the holding portion 47 is provided with matching clamping arms on both sides, and an end of the oblique punch 33 close to the fixed punch 31 is provided with a clamping groove 43 matching the clamping portion 47, and the clamping groove 43 is embedded in the clamping arm of the clamping portion 47. The oblique punch 33 is hinged with the clamping portion 47 through a first fixing pin 39. Further, the clamping portion 47 and the clamping groove 43 are connected by the first fixing pin 39. A movable wedge 32 is clamped in the clamping portion 47, and the movable wedge 32 is hinged with the clamping portion 47 through a second fixing pin 37. The oblique punch 33 is arranged on the side of the movable wedge 32 away from the clamping portion 47. A long strip-shaped limiting groove 38 is provided on the oblique punch 33, and the first fixing pin 39 is arranged in the limiting groove 38. The movable wedge 32 is placed in the fixed punch 31 through the second fixing pin 37 to enhance the force transmission and stability when the fixed punch 31 and the oblique punch 33 are connected.

[0031] An oblique motion bending punch 34 is provided at one end of the oblique punch 33 away from the fixed punch 31, and the oblique motion bending punch 34 is embedded and clamped on the oblique punch 33. The punch is divided into two parts, the oblique punch 33 and the oblique motion bending punch 34, which is convenient for parts replacement and maintenance.

[0032] A group of symmetrical oblique motion guide rail seats 51 are provided in the stripping plate 24 . Two oblique motion guide rail seats 51 are arranged in the stripping plate 24 at intervals on the left and right. The oblique punch 33 and the oblique motion bending punch 34 are embedded in the oblique motion guide rail seats 51 .

[0033] An inclined second oblique motion guide rail 53 is provided on the inner wall close to one side of two adjacent oblique motion guide rail seats 51. In other words, an inclined second oblique motion guide rail 53 is provided on the inner wall close to one side of two adjacent oblique motion guide rail seats 51. The second oblique motion guide rail 53 is arranged on the inner wall of the oblique motion guide rail seat 51 in an inverted right-angled trapezoid. The spacing between the inclined second oblique motion guide rails 53 on the adjacent inner walls of the two oblique motion guide rail seats 51 gradually decreases downward, and the spacing between adjacent second oblique motion guide rails 53 is gradually approached from top to bottom in an inverted trapezoidal shape.

[0034] Furthermore, in one of the embodiments, a first oblique motion guide rail 52 is provided in the oblique motion guide rail seat 51, and the first oblique motion guide rail 52 is arranged on a side of the oblique motion guide rail seat 51 away from the second oblique motion guide rail 53; in other words, a first oblique motion guide rail 52 is provided on a side of the oblique motion guide rail seat 51 away from the second oblique motion guide rail 53, the first oblique motion guide rail 52 has an inclined surface parallel to the second oblique motion guide rail 53, and the track surface of the first oblique motion guide rail 52 is arranged parallel to the track surface of the second oblique motion guide rail 53.

[0035] In the present application, the fixed punch 31 is placed in the upper clamping plate 22, and the fixed punch 31 is connected to the oblique punch 33 equipped with the oblique motion bending punch 34 through the first fixed pin 39; the first oblique motion guide rail 52 and the second oblique motion guide rail 53 are placed in the stripper plate 24, and the oblique punch 33 is placed between the first oblique motion guide rail 52 and the second oblique motion guide rail 53 when passing through the stripper plate 24. When the fixed punch 31 moves up and down, it drives the oblique punch 33 and the oblique motion bending punch 34 to move obliquely.

[0036] Furthermore, in one embodiment, the lower mold insert 35 is placed in the lower mold plate 25 , and the forming bending mold 36 is placed in the lower mold insert 35 .

[0037] Since the forming action of the oblique motion bending punch 34 is an inclined plane movement, the oblique angle of the oblique motion bending punch 34 can be extended into the forming bending die 36, so that compound angle forming less than 90 degrees can be achieved in one step, which greatly improves the process capability of the mold, enables ordinary stamping dies to have the stamping process capability of cutting-edge products, and reduces product manufacturing costs.

[0038] Furthermore, in one of the embodiments, the oblique punch 33 and the oblique motion bending punch 34 are embedded between the first oblique motion guide rail 52 and the second oblique motion guide rail 53, and an oblique motion bending punch 34 is provided on the inner side of the end of the oblique punch 33 away from the fixed punch 31, and the oblique motion bending punch 34 is embedded on the oblique punch 33, and the inner surface of the oblique motion bending punch 34 is flush with the inner surface of the oblique punch 33, and the oblique motion bending punch 34 and the oblique punch 33 have inner surfaces in the same inclined plane, and the end of the oblique motion bending punch 34 protrudes out of the outside of the oblique punch 33.

[0039] A lower die insert 35 is provided below the oblique punch 33, and a forming bending die 36 is provided in the lower die insert 35. An end of the forming bending die 36 away from the lower die insert 35 is provided with a bending ladder pedestal 42 that matches the oblique motion bending punch 34. The bending ladder pedestal 42 and the oblique motion bending punch 34 have the same inclined surface, and a bending stamping working surface is formed between the bending ladder pedestal 42 and the oblique motion bending punch 34.

[0040] Furthermore, in one embodiment, a working platform is formed between the upper end of the bending ladder pedestal 42 and the lower end of the oblique motion guide rail seat 51, and the bent product 61 is placed between the lower end of the oblique motion guide rail seat 51 and the upper end of the bending ladder pedestal 42 during stamping.

[0041] See attached Figure 3 As shown, attached Figure 3The layered structure of the present application is shown in the figure. The upper pad 21 is provided with an upper clamping plate 22, a back stripping plate 23, a stripping plate 24, and a lower template 25 in sequence. An adjustment rod 27 is provided between the upper pad 21 and the upper clamping plate 22. The adjustment rod 27 is clamped in the mounting groove 26 of the upper pad 21. A fixed punch 31 is provided in the upper clamping plate 22, a movable wedge 32 is provided in the back stripping plate 23, an oblique punch 33 and an oblique motion guide rail seat 51 are provided in the stripping plate 24, and lower mold inserts 35 and 56 are provided in the lower template 25.

[0042] When the mold moves downward, the upper pad 21 of the upper mold part exerts force on the upper clamp 22, and the upper clamp 22 moves vertically downward with the fixed punch 31. The fixed punch 31 pushes the oblique punch 33 and the oblique motion bending punch 34 downward through the cooperation of the second fixed pin 37 and the movable wedge 32, and moves obliquely within the track of the first oblique motion guide rail 52 and the second oblique motion guide rail 53. After the oblique motion bending punch 34 contacts the material, it pushes the material downward to make an oblique bend along the specified track, thereby achieving a compound angle forming of the bent product 61 with an angle less than 90 degrees.

[0043] Furthermore, in one of the embodiments, the adjusting rod 27 is placed in the upper pad 21, and the head of the fixed punch 31 cooperates with the inclined surface of the first adjusting inclined surface 28 and the second adjusting inclined surface 41. The feed amount of the oblique movement bending punch 34 of the upper mold part can be controlled by moving the adjusting rod 27 forward or backward, thereby controlling the angle of the bent product 61 after forming.

[0044] The above embodiments only express several preferred implementations of the utility model, and the descriptions thereof are relatively specific and detailed. It should be understood that the utility model is not limited to the forms disclosed herein, and should not be regarded as the exclusion of other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge in the relevant field, and cannot be understood as limiting the scope of the utility model. It should be pointed out that for ordinary technicians in this field, several deformations and improvements can be made without departing from the concept of the utility model. The changes and modifications made by the personnel in this field do not depart from the spirit and scope of the utility model, and all of these belong to the protection scope of the claims attached to the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A continuous die oblique composite bending mechanism, comprising: An upper clamping plate (22) and a stripping plate (24), wherein the upper clamping plate (22) is arranged above the stripping plate (24); characterized in that a group of symmetrical fixed punches (31) are arranged in the upper clamping plate (22), and a clamping portion (47) is arranged at one end of the fixed punch (31); The oblique punch (33) is clamped in the clamping portion (47), and the oblique punch (33) is hingedly connected to the clamping portion (47) via a first fixing pin (39); An oblique motion bending punch (34) is provided at one end of the oblique punch (33) away from the fixed punch (31), and the oblique motion bending punch (34) is embedded and clamped on the oblique punch (33); A group of symmetrical oblique motion guide rail seats (51) are provided in the stripping plate (24), and two oblique motion guide rail seats (51) are arranged in the stripping plate (24) at intervals on the left and right, and the oblique punch (33) and the oblique motion bending punch (34) are embedded in the oblique motion guide rail seats (51).

2. A continuous die oblique composite bending mechanism according to claim 1, characterized in that: A movable wedge (32) is clamped in the clamping portion (47), and the movable wedge (32) is hinged to the clamping portion (47) through a second fixing pin (37). The oblique punch (33) is arranged on a side of the movable wedge (32) away from the clamping portion (47); a long strip-shaped limiting groove (38) is opened on the oblique punch (33), and the first fixing pin (39) is arranged in the limiting groove (38).

3. The continuous die oblique composite bending mechanism according to claim 1, characterized in that: An inclined second oblique motion guide rail (53) is provided on the inner wall of two adjacent oblique motion guide rail seats (51) close to one side. The second oblique motion guide rail (53) is arranged on the inner wall of the oblique motion guide rail seat (51) in the shape of an inverted right-angle trapezoid. The spacing between the inclined second oblique motion guide rails (53) on the adjacent inner walls of the two oblique motion guide rail seats (51) gradually decreases downward, and the spacing between adjacent second oblique motion guide rails (53) is gradually approached from top to bottom in the shape of an inverted trapezoid.

4. The continuous die oblique composite bending mechanism according to claim 3, characterized in that: The oblique motion guide rail seat (51) is provided with a first oblique motion guide rail (52), and the first oblique motion guide rail (52) is arranged on a side of the oblique motion guide rail seat (51) away from the second oblique motion guide rail (53); the track surface of the first oblique motion guide rail (52) is arranged in parallel with the track surface of the second oblique motion guide rail (53).

5. The continuous die oblique composite bending mechanism according to claim 1, characterized in that: An adjustment rod (27) is provided at one end of the fixed punch (31) away from the clamping portion (47), and a second adjustment inclined surface (41) is provided at one end of the fixed punch (31) close to the adjustment rod (27). A first adjustment inclined surface (28) matching and corresponding to the second adjustment inclined surface (41) is provided on the adjustment rod (27), and the first adjustment inclined surface (28) is tightly arranged against the second adjustment inclined surface (41).

6. The continuous die oblique composite bending mechanism according to claim 4, characterized in that: The oblique punch (33) and the oblique motion bending punch (34) are embedded between the first oblique motion guide rail (52) and the second oblique motion guide rail (53); the inner surface of the oblique motion bending punch (34) is flush with the inner surface of the oblique punch (33); the oblique motion bending punch (34) and the oblique punch (33) have inner surfaces in the same inclined plane; and the end of the oblique motion bending punch (34) protrudes outside the oblique punch (33).

7. The continuous die oblique composite bending mechanism according to claim 6, characterized in that: A lower die insert (35) is provided below the oblique punch (33), a forming bending die (36) is provided in the lower die insert (35), and a bending ladder pedestal (42) matching and corresponding to the oblique motion bending punch (34) is provided at one end of the forming bending die (36) away from the lower die insert (35), the bending ladder pedestal (42) and the oblique motion bending punch (34) have the same inclined surface, and a bending stamping working surface is formed between the bending ladder pedestal (42) and the oblique motion bending punch (34).

8. The continuous die oblique composite bending mechanism according to claim 7, characterized in that: A working platform is formed between the upper end of the bending ladder pedestal (42) and the lower end of the oblique motion guide rail seat (51); and the bent product (61) is placed between the lower end of the oblique motion guide rail seat (51) and the upper end of the bending ladder pedestal (42) during stamping.

9. The continuous die oblique composite bending mechanism according to claim 1, characterized in that: The upper pad (21) is provided with the upper clamping plate (22), the back stripping plate (23), the stripping plate (24), and the lower template (25) in sequence downwardly; an adjustment rod (27) is provided between the upper pad (21) and the upper clamping plate (22); the adjustment rod (27) is clamped in the mounting groove (26) of the upper pad (21); a movable wedge (32) is arranged in the back stripping plate (23); the oblique punch (33) and the oblique motion guide rail seat (51) are arranged in the stripping plate (24); and a lower mold insert (35) is arranged in the lower template (25).

Images