A compact flanging mechanism for a punch press

Abstract

The utility model provides a kind of compact flanging mechanism of punch die, including lower die plate, lower backing plate, lower mould core, flanging forming assembly, linkage positioning assembly, inclined roof component, upper die plate, upper mould core and flanging drive assembly, lower backing plate is fixed in the upper of lower die plate, lower mould core is fixed in the upper of lower backing plate, flanging forming assembly includes first sliding rail, first sliding block, first connecting block, first nitrogen spring, support block and linkage block, linkage positioning assembly includes fixed wedge, second sliding rail, second sliding block, second connecting block, second nitrogen spring and positioning column, the advantage of the design is that: through flanging drive assembly lower movement, simultaneously drive first sliding block and second sliding block action, to complete the positioning and flanging of workpiece simultaneously, can greatly simplify the structure of mould and reduce mould manufacturing cost.

Description

Technical Field

[0001] This utility model relates to the field of stamping die structure, and in particular to a compact flanging mechanism for stamping dies. Background Technology

[0002] Currently, cold pressing dies are widely used in the production of various housing parts for automobiles. For some complex housings, one side of the housing has a sloping structure, which requires a pneumatic positioning structure. After the mold is closed, the positioning pin is inserted into the positioning hole of the workpiece. The bottom of the other side of the housing needs to be flanged, which also requires a pneumatic structure. After the mold is closed, the stamping block is driven to stamp the workpiece laterally, thereby flanged the bottom of the workpiece. Due to the setting of various pneumatic structures, the structure of the mold is extremely bulky, the mold volume is huge, and the manufacturing cost is high. Therefore, it is necessary to manufacture a compact flanged mechanism for stamping dies to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to provide a compact flanging mechanism for stamping dies to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A compact flanging mechanism for a stamping die includes a lower die plate, a lower backing plate, a lower die core, a flanging forming assembly, a linkage positioning assembly, a slanted ejector assembly, an upper die plate, an upper die core, and a flanging drive assembly. The lower backing plate is fixed above the lower die plate, and the lower die core is fixed above the lower backing plate. The flanging forming assembly includes a first slide rail, a first slider, a first connecting block, a first nitrogen spring, a support block, and a linkage block. The first slide rail and the support block are both fixed on the lower die plate. The first slide rail corresponds between the lower backing plate and the support block. The lower end of the first slider is slidably connected to the first slide rail. The first slider has a flanging boss on one side near the lower backing plate and a first driving inclined surface on the other side. The first connecting block is fixed below the first slider. The first nitrogen spring is fixed on the lower die plate, and its elastic extension end is fixedly connected to the first connecting block. The linkage block is fixed on the first slider and corresponds to the lower part of the flanging boss. The lower backing plate has a mounting cavity, and one end of the linkage block passes through the lower backing plate and corresponds to the mounting cavity. Inside the cavity, the linkage positioning assembly includes a fixed wedge, a second slide rail, a second slider, a second connecting block, a second nitrogen spring, and a positioning post. The fixed wedge is fixed on the lower template and corresponds to the mounting cavity. An inclined mounting surface facing the linkage block is provided above the fixed wedge. The second slide rail is fixed on the inclined mounting surface. The second slider is slidably connected to the second slide rail. The second connecting block is fixed below the second slider. The second nitrogen spring is fixed on the fixed wedge and its elastic extension end is fixedly connected to the second connecting block. One side of the second slider contacts the linkage block. The positioning post is fixed on the other side of the second slider and passes through the lower mold core. The inclined ejector assembly is fixed on the lower template and corresponds to the lower mold core. The upper template is set above the lower template. The upper mold core and the flanging drive assembly are both fixed on the upper template. The upper mold core corresponds to the upper part of the lower mold core. The lower ends of the flanging drive assembly are respectively provided with a second driving inclined surface and a support surface that contact the first driving inclined surface and the side of the support block.

[0006] Further description of the present invention: The flanging drive assembly includes a drive column, a first wear-resistant block and a second wear-resistant block. The upper end of the drive column is fixed on the upper template. The first wear-resistant block is obliquely fixed on one side of the drive column. The side of the first wear-resistant block facing the first slider is provided with a second drive inclined surface. The second wear-resistant block is vertically fixed on the other side of the drive column. The outer side of the second wear-resistant block is provided with a support surface.

[0007] Further description of the present invention: The inclined ejector assembly includes a third nitrogen spring, a fourth nitrogen spring, a vertical transfer platform, and an inclined transfer platform. The lower end of the third nitrogen spring is fixed on the lower template. The vertical transfer platform is fixed on the telescopic end of the upper end of the third nitrogen spring and corresponds to the lower mold core. The lower end of the fourth nitrogen spring is fixed on the lower template and corresponds to the space between the vertical transfer platform and the first slider. The upper end of the fourth nitrogen spring is inclined towards the vertical transfer platform. The inclined transfer platform is fixed on the telescopic end of the upper end of the fourth nitrogen spring. There is a gap between the vertical transfer platform and the inclined transfer platform.

[0008] The beneficial effects of this utility model are as follows: In the mold-opening state, the inclined ejector assembly is in the raised state, and the workpiece to be flanged is placed on the inclined ejector assembly. When the mold is closed, the upper mold plate descends, and the upper mold core presses the workpiece down onto the lower mold core. At the same time, the second driving inclined surface on the flanging drive assembly contacts the first driving inclined surface, thereby driving the first slider to slide along the first slide rail. The flanging boss folds the lower end of the workpiece. Meanwhile, during the stamping process, as the first slider moves, the linkage block pushes the second slider to slide along the second slide rail, thereby driving the end of the positioning post to protrude from the lower mold core. The positioning post is inserted into the positioning hole on the inclined surface of the workpiece, which can prevent the workpiece from shifting during the flanging process. During the flanging process, the first nitrogen spring and the second nitrogen spring are compressed. After the flanging is completed, the first slider and the second slider are automatically reset under the drive of the first nitrogen spring and the second nitrogen spring. The workpiece that has been flanged is lifted by the inclined ejector assembly, making it easy to remove the workpiece. The advantage of this design is that by moving the flanging drive component downward, the first and second sliders are simultaneously driven to move, thereby completing the workpiece positioning and flanging at the same time, which can greatly simplify the mold structure and reduce the mold manufacturing cost. Attached Figure Description

[0009] Figure 1 This is an overall structural diagram of the present invention (in the mold-open state);

[0010] Figure 2 This is a structural diagram of the lower pad, the flanging forming component, the linkage positioning component, the inclined top component, and the flanging driving component in this utility model;

[0011] Figure 3 This is a partial sectional perspective view of the flange forming component and the linkage positioning component in this utility model;

[0012] Explanation of reference numerals in the attached figures:

[0013] 1. Lower template; 2. Lower pad; 21. Mounting cavity; 3. Lower mold core; 4. Flanging forming assembly; 41. First slide rail; 42. First slider; 421. Flanging boss; 422. First driving ramp; 43. First connecting block; 44. First nitrogen spring; 45. Support block; 46. Linkage block; 5. Linkage positioning assembly; 51. Fixed wedge; 511. Mounting ramp; 52. Second slide rail; 53. Second slider; 54. Second connecting block; 55. Second nitrogen spring; 56. Positioning post; 6. Inclined top assembly; 61. Third nitrogen spring; 62. Fourth nitrogen spring; 63. Vertical transfer platform; 64. Inclined transfer platform; 7. Upper template; 8. Upper mold core; 9. Flanging drive assembly; 91. Drive post; 92. First wear-resistant block; 921. Second driving ramp; 93. Second wear-resistant block; 931. Support surface. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings:

[0015] like Figures 1 to 3 As shown, a compact flanging mechanism for a stamping die includes a lower template 1, a lower pad 2, a lower die core 3, a flanging forming assembly 4, a linkage positioning assembly 5, a slanted ejector assembly 6, an upper template 7, an upper die core 8, and a flanging drive assembly 9. The lower pad 2 is fixed above the lower template 1, and the lower die core 3 is fixed above the lower pad 2. The flanging forming assembly 4 includes a first slide rail 41, a first slider 42, a first connecting block 43, a first nitrogen spring 44, a support block 45, and a linkage block 46. The first slide rail 41 and the support block 45 are both fixed on the lower template 1. The first slide rail 41 corresponds to the lower pad 2 and the support block 46. Between the support blocks 45, the lower end of the first slider 42 is slidably connected to the first slide rail 41. The first slider 42 has a flanged boss 421 on one side near the lower pad and a first driving inclined surface 422 on the other side. The first connecting block 43 is fixed below the first slider 42. The first nitrogen spring 44 is fixed on the lower template 1 and its elastic telescopic end is fixedly connected to the first connecting block 43. The linkage block 46 is fixed on the first slider 42 and corresponds to the lower part of the flanged boss 421. The lower pad 2 has a mounting cavity 21. One end of the linkage block 46 passes through the lower pad 2 and corresponds to the mounting cavity 21. Inside, the linkage positioning assembly 5 includes a fixed wedge 51, a second slide rail 52, a second slider 53, a second connecting block 54, a second nitrogen spring 55, and a positioning post 56. The fixed wedge 51 is fixed on the lower template 1 and corresponds to the installation cavity 21. The fixed wedge 51 has an installation inclined surface 511 facing the linkage block 46 above it. The second slide rail 52 is fixed on the installation inclined surface 511. The second slider 53 is slidably connected to the second slide rail 52. The second connecting block 54 is fixed below the second slider 53. The second nitrogen spring 55 is fixed on the fixed wedge 51 and its elastic extension end is connected to the second connecting block 46. The connecting block 54 is fixedly connected. One side of the second slider 53 contacts the linkage block 46. The positioning post 56 is fixed on the other side of the second slider 53. The positioning post 56 passes through the lower mold core 3. The inclined top assembly 6 is fixed on the lower template 1 and corresponds to the lower mold core 3. The upper template 7 is set above the lower template 1. The upper mold core 8 and the flanging drive assembly 9 are both fixed on the upper template 7. The upper mold core 8 corresponds to the lower mold core 3. The lower end of the flanging drive assembly 9 is provided with a second driving inclined surface 921 and a support surface 931 that contact the first driving inclined surface 422 and the side of the support block 45, respectively.

[0016] In the open mold state, the inclined ejector assembly 6 is in the raised state, and the workpiece to be flanged is placed on the inclined ejector assembly 6. When the mold is closed, the upper mold plate 7 descends, and the upper mold core 8 presses the workpiece down onto the lower mold core 3. At the same time, the second driving inclined surface 921 on the flanging drive assembly 9 contacts the first driving inclined surface 422, thereby driving the first slider 42 to slide along the first slide rail 41. The flanging boss 421 folds the lower end of the workpiece. Meanwhile, during the stamping process, as the first slider 42 moves, the linkage block 46 pushes the second slider 53 to slide along the second slide rail 52, thereby driving the end of the positioning post 56 to protrude from the lower mold core 3. The positioning post 56 is inserted into the positioning hole on the inclined surface of the workpiece, which can prevent the workpiece from shifting during the flanging process. During the flanging process, the first nitrogen spring 44 and the second nitrogen spring 55 are compressed. After the flanging is completed, the first slider 42 and the second slider 53 automatically reset under the drive of the first nitrogen spring 44 and the second nitrogen spring 55. The workpiece that has been flanged is lifted by the inclined ejector assembly 6, making it easy to remove the workpiece. The advantage of this design is that by moving the flanging drive component 9 downward, the first slider 42 and the second slider 53 are simultaneously driven to move, thereby completing the positioning and flanging of the workpiece at the same time, which can greatly simplify the structure of the mold and reduce the mold manufacturing cost.

[0017] The flange driving assembly 9 includes a driving column 91, a first wear-resistant block 92, and a second wear-resistant block 93. The upper end of the driving column 91 is fixed on the upper template 7. The first wear-resistant block 92 is fixed obliquely on one side of the driving column 91. The first wear-resistant block 92 has a second driving inclined surface 921 on the side facing the first slider 42. The second wear-resistant block 93 is fixed vertically on the other side of the driving column 91. The outer side of the second wear-resistant block 93 has a support surface 931.

[0018] As the upper template 7 descends, the drive column 91 descends accordingly. The second drive inclined surface 921 of the first wear-resistant block 92 contacts the first drive inclined surface 422, thereby driving the first slider 42 to move. The support surface 931 of the second wear-resistant block 93 and the side of the support block 45 fit together. The support block 45 supports the drive column 91 to prevent bending and deformation during long-term operation.

[0019] The inclined top assembly 6 includes a third nitrogen spring 61, a fourth nitrogen spring 62, a vertical transfer platform 63, and an inclined transfer platform 64. The lower end of the third nitrogen spring 61 is fixed to the lower template 1. The vertical transfer platform 63 is fixed to the telescopic end of the upper end of the third nitrogen spring 61 and corresponds to the lower mold core 3. The lower end of the fourth nitrogen spring 62 is fixed to the lower template 1 and corresponds to the space between the vertical transfer platform 63 and the first slider 42. The upper end of the fourth nitrogen spring 62 is inclined toward the vertical transfer platform 63. The inclined transfer platform 64 is fixed to the telescopic end of the upper end of the fourth nitrogen spring 62. There is a gap between the vertical transfer platform 63 and the inclined transfer platform 64.

[0020] In the mold-open state, the vertical transfer platform 63 and the inclined transfer platform 64 are automatically raised by the third nitrogen spring 61 and the fourth nitrogen spring 62. When the mold is closed, the upper mold core 8 presses on the workpiece, and the vertical transfer platform 63 and the inclined transfer platform 64 continuously descend. During the descent, the inclined transfer platform 64 moves obliquely downward, thereby continuously moving away from the vertical transfer platform 63, and finally the outer end of the inclined transfer platform 64 is pressed against the inner wall of the workpiece. The outer end of the inclined transfer platform 64 and the flanging boss 421 cooperate to flanging the workpiece. When the flanging is completed and the mold is opened, the vertical transfer platform 63 and the inclined transfer platform 64 are automatically raised. During the raising process, the inclined transfer platform 64 moves closer to the vertical transfer platform 63, while continuously moving away from the flanged part of the workpiece, until the inclined transfer platform 64 no longer obstructs the flanged part in the vertical direction, so that the flanged workpiece can be removed.

[0021] The above does not limit the technical scope of this utility model. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. A compact flanging mechanism for stamping dies, characterized in that: The assembly includes a lower template, a lower backing plate, a lower mold core, a flanging forming component, a linkage positioning component, a slanted ejector component, an upper template, an upper mold core, and a flanging drive component. The lower backing plate is fixed above the lower template, and the lower mold core is fixed above the lower backing plate. The flanging forming component includes a first slide rail, a first slider, a first connecting block, a first nitrogen spring, a support block, and a linkage block. The first slide rail and the support block are both fixed on the lower template. The first slide rail corresponds between the lower backing plate and the support block. The lower end of the first slider is slidably connected to the first slide rail. The first slider has a flanging boss on one side near the lower backing plate and a first driving slant on the other side. The first connecting block is fixed below the first slider. The first nitrogen spring is fixed on the lower template, and its elastic extension end is fixedly connected to the first connecting block. The linkage block is fixed on the first slider and corresponds to the area below the flanging boss. The lower backing plate has a mounting cavity, and one end of the linkage block passes through the lower backing plate and corresponds to the mounting cavity. The linkage positioning component includes a fixed... The assembly comprises a fixed wedge, a second slide rail, a second slider, a second connecting block, a second nitrogen spring, and a positioning post. The fixed wedge is fixed on the lower template and corresponds to the mounting cavity. An inclined mounting surface facing the linkage block is provided above the fixed wedge. The second slide rail is fixed on the inclined mounting surface. The second slider is slidably connected to the second slide rail. The second connecting block is fixed below the second slider. The second nitrogen spring is fixed on the fixed wedge, and its elastic extension end is fixedly connected to the second connecting block. One side of the second slider contacts the linkage block. The positioning post is fixed on the other side of the second slider and passes through the lower mold core. The inclined ejector assembly is fixed on the lower template and corresponds to the lower mold core. The upper template is located above the lower template. The upper mold core and the flanging drive assembly are both fixed on the upper template. The upper mold core corresponds to the upper part of the lower mold core. The lower ends of the flanging drive assembly are respectively provided with a second driving inclined surface and a support surface that contact the first driving inclined surface and the side of the support block.

2. The compact flanging mechanism for stamping dies according to claim 1, characterized in that: The flange driving assembly includes a driving column, a first wear-resistant block, and a second wear-resistant block. The upper end of the driving column is fixed on the upper template. The first wear-resistant block is obliquely fixed on one side of the driving column. The first wear-resistant block has a second driving inclined surface on the side facing the first slider. The second wear-resistant block is vertically fixed on the other side of the driving column. The outer side of the second wear-resistant block has the support surface.

3. The compact flanging mechanism for stamping dies according to claim 1, characterized in that: The inclined ejector assembly includes a third nitrogen spring, a fourth nitrogen spring, a vertical transfer platform, and an inclined transfer platform. The lower end of the third nitrogen spring is fixed to the lower template. The vertical transfer platform is fixed to the telescopic end of the upper end of the third nitrogen spring and corresponds to the lower mold core. The lower end of the fourth nitrogen spring is fixed to the lower template and corresponds to the space between the vertical transfer platform and the first slider. The upper end of the fourth nitrogen spring is inclined toward the vertical transfer platform. The inclined transfer platform is fixed to the telescopic end of the upper end of the fourth nitrogen spring. There is a gap between the vertical transfer platform and the inclined transfer platform.

Images