A continuous die for stamping and bending of L-shaped plates
By designing stamping and bending continuous molds with integrated punching, 45° bending and 90° bending functions, the problem that existing molds cannot continuously produce porous and complex shape L-shaped plates is solved, and efficient L-shaped plate production is achieved.
Patent Information
- Application Number
- CN202420808810.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-17
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-04-17
AI Technical Summary
Existing stamping dies cannot continuously produce L-shaped plates with holes and 45° chamfers, and cannot meet the production needs of porous and complex shapes.
A stamping and bending continuous mold including upper die seat and lower die seat is designed, integrating punching, 45° bending and 90° bending functions. The continuous production of L-shaped plates is achieved through the synergy of punching assembly, edge cutting assembly, 45° bent parts, 90° bent parts and cutting blocks.
Continuous production of L-shaped plates is realized, and L-shaped plates with holes and 45° chamfers can be efficiently processed, improving production efficiency.
Smart Images
Figure CN222725165U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of stamping dies, in particular to a stamping and bending continuous die for an L-shaped plate. Background Art
[0002] The L-shaped plate in hardware is similar in shape to the letter "L". It is generally composed of two perpendicular or nearly perpendicular horizontal plates and vertical plates, forming an internal right-angled opening structure. This shape allows the L-shaped plate to be used as a connector, support, fixing, etc., to achieve connection or support in two directions in various assembly structures.
[0003] The existing stamping die can bend the plate 90°. For example, a profile bending convex hull die with announcement number CN220658963U includes an upper template, an upper die core, a lower die core and a lower template. The upper template is installed on the pressing mechanism of the punch press through a reinforcing plate. The upper die core is fixedly installed on the lower surface of the upper template. The lower die core is fixedly installed on the lower template. The lower die core is provided with a convex hull forming part and placement parts symmetrically arranged on both sides of the convex hull forming part. The convex hull forming part is V-shaped. The pressing mechanism of the punch press drives the upper die core to press the profile down and form it in the convex hull forming part.
[0004] However, the existing stamping die does not have integrated punching and 45° bending parts, which makes it impossible to continuously produce L-shaped plates with multiple holes and 45° chamfers at the bending ends. The shape of the L-shaped plate is shown in Figure 4 and Figure 5 . Utility Model Content
[0005] In view of the above problems in the prior art, the utility model provides a continuous stamping and bending die for an L-shaped plate, which solves the problem that the existing stamping die cannot continuously produce L-shaped plates with holes and 45° chamfers.
[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:
[0007] Provided is a stamping and bending continuous die for an L-shaped plate, characterized in that it comprises an upper die base and a lower die base, the upper die base and the lower die base are respectively arranged at the upper end and the lower end of a guide rod assembly, the upper die base and the lower die base are respectively provided with an upper clamping plate and a lower template at the bottom and the top, a plate is supported on the lower template, and the upper and lower parts of the end surface of the plate are respectively a fixed section and a bending section; a punching assembly, a trimming assembly, a 45° bending part, a 90° bending part and a cutting block are fixed to the upper clamping plate in sequence from left to right; the punching assembly is used to punch holes in the fixed section and the bending section; the trimming assembly is used to separate and cut the fixed section and the bending section into fixed plates and a bending plate; a 45° support block is provided on the lower template directly below the 45° bending part, and the adjacent surfaces between the 45° bending part and the 45° support block are both 45° inclined surfaces, and the 45° bending part and the 45° support block are used to bend the end of the bending plate 45°; a 90° support block is provided on the lower template directly below the 90° bending part, and the adjacent surfaces of the 90° bending part and the 90° support block are parallel to each other, and the 90° bending part and the 90° support block are used to bend the connection between the bending plate and the fixed plate 90° to form an L-shaped plate; the cutting block is used to cut off the connection between two adjacent L-shaped plates.
[0008] The working principle of this scheme is as follows: the rectangular plate is moved on the lower template through an external conveying device. First, the punching component punches the fixed section and the bending section of the plate. The trimming component then cuts the fixed section and the bending section into a fixed plate and a bending plate respectively. The 45° bending part bends the end of the bending plate at 45°. After that, the 90° bending part bends the connection between the bending plate and the fixed plate at 90° to form an L-shaped plate. Finally, the cutting block separates the L-shaped plate. The stamping and bending continuous die of this scheme integrates the functions of punching, 45° bending and 90° bending, which speeds up production efficiency.
[0009] Furthermore, the punching assembly includes a first punch fixed on the upper clamping plate and two second punches, and the two second punches are symmetrically arranged on both sides of the first punch.
[0010] Furthermore, the trimming assembly includes a first trimming part and a second trimming part respectively located directly above the bending section and the fixing section.
[0011] Furthermore, the top projection of the first trimming part is L-shaped, and the first trimming part includes a vertical section and a horizontal section that are perpendicularly connected to each other, and the vertical section is used to cut the bent section into a bent plate.
[0012] Furthermore, a rectangular block is provided at the end of the vertical section, and the four corners of the rectangular block are all rounded; and protrusions are provided on both sides of the vertical section. The arrangement of the rectangular block and the protrusions can process a bayonet shape on the edge of the L-shaped plate.
[0013] Furthermore, the top projection of the second trimming part is T-shaped, and the T-shaped vertical section on the second trimming part is used to cut the fixing section into a fixing plate.
[0014] Furthermore, the side projection of the bottom end of the 45° bent part is in the shape of an inverted triangle, the 45° support block is in the shape of a right-angled trapezoid, and chamfers are provided at the upper and lower ends of the adjacent surfaces of the 45° bent part and the 45° support block.
[0015] Furthermore, the side projection of the bottom end of the 90° bent part is an inverted right-angled trapezoid, the 90° support block is a rectangular parallelepiped structure, and chamfers are provided at the upper and lower ends of the vertical flat surface of the bottom of the 90° bent part and the 90° support block.
[0016] Furthermore, an upper pad is arranged on the top surface of the upper clamping plate, and a stripping back plate and an upper stripping plate are arranged on the bottom of the upper clamping plate in sequence. The arrangement of the upper pad can adjust the gap and disperse the pressure to avoid damage to the upper die seat.
[0017] Furthermore, a lower pad is provided on the bottom surface of the lower template.
[0018] The utility model discloses a continuous stamping and bending die for an L-shaped plate, which has the following beneficial effects:
[0019] The utility model integrates the functions of punching, 45° bending and 90° bending, which speeds up the production efficiency of L-shaped plates. First, the punching component punches the fixed section and the bending section of the plate, and the trimming component cuts the fixed section and the bending section into a fixed plate and a bending plate respectively, and the 45° bending part bends the end of the bending plate at 45°, and then the 90° bending part bends the connection between the bending plate and the fixed plate at 90° to form an L-shaped plate, and finally the cutting block separates the L-shaped plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the top view structure of the stamping and bending continuous die;
[0021] Figure 2 It is a front view structural schematic diagram of a stamping and bending continuous die;
[0022] Figure 3 It is a schematic diagram of the structure of the plate;
[0023] Figure 4 It is the front view of the L-shaped plate;
[0024] Figure 5 It is a top view of the L-shaped plate;
[0025] Figure 6 is a schematic structural diagram of a first trimming part;
[0026] Figure 7 is a schematic structural diagram of the second trimming part;
[0027] Figure 8 It is a structural schematic diagram of a 45° bent part;
[0028] Fig. 9 It is a structural schematic diagram of a 90° bent part;
[0029] Among them: 1. Upper die base; 2. Upper pad; 3. Upper clamping plate; 4. Backing plate; 5. Upper stripping plate; 6. Lower template; 7. Lower pad; 8. Lower die base; 9. Guide column assembly; 10. Punching assembly; 101. First punch; 102. Second punch; 11. Trimming assembly; 111. First trimming part; 112. Second trimming part; 113. Vertical section; 114. Horizontal section; 12. 45° bending part; 13. 90° bending part; 14. Cutting block; 15. Fine blanking punch; 16. Guide needle; 17. Plate; 171. Fixed section; 172. Bending section; 173. Fixed plate; 174. Bending plate; 18. L-shaped plate; 19. 45° support block; 20. 90° support block. DETAILED DESCRIPTION
[0030] The specific implementation methods of the utility model are described below to facilitate technical personnel in this technical field to understand the utility model, but it should be clear that the utility model is not limited to the scope of the specific implementation methods. For ordinary technical personnel in this technical field, as long as various changes are within the spirit and scope of the utility model defined and determined by the attached claims, these changes are obvious, and all utility model creations using the concept of the utility model are protected.
[0031] refer to Figures 1 to 9 The present embodiment provides a continuous die for stamping and bending an L-shaped plate, characterized in that it includes an upper die base 1 and a lower die base 8.
[0032] refer to Figure 2 The upper die base 1 and the lower die base 8 are respectively arranged at the upper and lower ends of the guide column assembly 9. The guide column assembly 9 is used for guiding the upper die base 1 and the lower die base 8 when the stamping machine tool drives the stamping. The guide column assembly 9 includes four guide columns respectively connected to the four corners of the upper die base 1.
[0033] An upper clamping plate 3 and a lower mold plate 6 are respectively provided at the bottom and top of the upper mold base 1 and the lower mold base 8. A plate 17 is supported on the lower mold plate 6. The upper and lower parts of the end surface of the plate 17 are a fixed section 171 and a bending section 172 respectively.
[0034] The upper clamping plate 3 is fixed with a punching assembly 10 , a trimming assembly 11 , a 45° bending part 12 , a 90° bending part 13 and a cutting block 14 in sequence from left to right.
[0035] The punching assembly 10 is used to punch the fixed section 171 and the bent section 172. The punching assembly 10 comprises a first punch 101 fixed on the upper clamping plate 3 and two second punches 102, and the two second punches 102 are symmetrically arranged on both sides of the first punch 101.
[0036] The trimming assembly 11 is used to cut the fixed section 171 and the bending section 172 into a fixed plate 173 and a bending plate 174. The trimming assembly 11 includes a first trimming part 111 and a second trimming part 112 located directly above the bending section 172 and the fixed section 171, respectively.
[0037] refer to Figure 1 and Figure 6 The first trimming part 111 is L-shaped in top view, and includes a vertical section 113 and a horizontal section 114 connected perpendicularly to each other, and the vertical section 113 is used to cut the bending section 172 into a bending plate 174. A rectangular block is provided at the end of the vertical section 113, and the four corners of the rectangular block are all rounded; protrusions are provided on both sides of the vertical section 113. The setting of the rectangular block and the protrusion can process the bayonet shape on the edge of the L-shaped plate 18.
[0038] refer to Figure 1 and Figure 7 The top projection of the second trimming part 112 is T-shaped, and the T-shaped vertical section on the second trimming part 112 is used to cut the fixing section 171 into the fixing plate 173 .
[0039] A 45° support block 19 is provided on the lower template 6 directly below the 45° bent part 12. The adjacent surfaces between the 45° bent part 12 and the 45° support block 19 are both 45° inclined surfaces. The 45° bent part 12 and the 45° support block 19 are used to bend the end of the bending plate 174 45°.
[0040] Specifically, refer to Figure 8 The side projection of the bottom end of the 45° bent part 12 is in the shape of an inverted triangle, the 45° support block 19 is in the shape of a right-angled trapezoid, and chamfers are provided at the upper and lower ends of the adjacent surfaces of the 45° bent part 12 and the 45° support block 19.
[0041] A 90° support block 20 is provided on the lower template 6 directly below the 90° bent part 13. The adjacent surfaces of the 90° bent part 13 and the 90° support block 20 are parallel to each other. The 90° bent part 13 and the 90° support block 20 are used to bend the connection between the bending plate 174 and the fixed plate 173 90° to form an L-shaped plate 18; the cutting block 14 is used to cut off the connection between two adjacent L-shaped plates 18.
[0042] Specifically, refer to Fig. 9The side projection of the bottom end of the 90° bent part 13 is in the shape of an inverted right-angled trapezoid, the 90° support block 20 is in a rectangular parallelepiped structure, and chamfers are provided at the upper and lower ends of the vertical flat surface of the bottom of the 90° bent part 13 and the 90° support block 20.
[0043] As a further solution of this embodiment, a fine punch 15 is arranged on the upper clamping plate 3 between the cutting block 14 and the 90° bent part 13. The fine punch 15 has higher punching accuracy than the second punch 102. The fine punch 15 further punches the holes punched by the second punch 102 on the fixing plate 173 to improve the accuracy.
[0044] As a further solution of this embodiment, an upper pad 2 is arranged on the top surface of the upper clamping plate 3, and a stripping plate 4 and an upper stripping plate 5 are arranged on the bottom of the upper clamping plate 3 in sequence. A lower pad 7 is arranged on the bottom surface of the lower mold plate 6. The arrangement of the upper pad 2 and the lower pad 7 can adjust the gap and disperse the pressure to avoid damage to the upper mold base 1.
[0045] As a further solution of this embodiment, a guide needle 16 is provided on the backing plate 4, and a guide hole is correspondingly provided on the lower template 6. The provision of the guide needle 16 improves the positioning accuracy of the stamping.
[0046] In summary, the working principle of this solution is:
[0047] refer to Figure 3 The rectangular plate 17 is moved on the lower template 6 through an external conveying device. First, the punching component 10 punches the fixed section 171 and the bending section 172 of the plate 17. The trimming component 11 then cuts the fixed section 171 and the bending section 172 into a fixed plate 173 and a bending plate 174. The 45° bending part 12 bends the end of the bending plate 174 at 45°. After that, the 90° bending part 13 bends the connection between the bending plate 174 and the fixed plate 173 at 90° to form an L-shaped plate 18. Finally, the cutting block 14 separates the L-shaped plate 18. The stamping and bending continuous die of this scheme integrates the functions of punching, 45° bending and 90° bending, which speeds up production efficiency.
[0048] Although the specific implementation of the utility model is described in detail in conjunction with the drawings, it should not be understood as limiting the scope of protection of this patent. Within the scope described in the claims, various modifications and variations that can be made by those skilled in the art without creative work still fall within the scope of protection of this patent.
Claims
1. A continuous die for stamping and bending an L-shaped plate, characterized in that: The invention comprises an upper die base (1) and a lower die base (8), wherein the upper die base (1) and the lower die base (8) are respectively arranged at the upper end and the lower end of the guide rod assembly, and an upper clamping plate (3) and a lower mold plate (6) are respectively arranged at the bottom and the top of the upper die base (1) and the lower mold base (8), and a plate (17) is supported on the lower mold plate (6), and the upper and lower parts of the end surface of the plate (17) are respectively a fixed section (171) and a bending section (172); The upper clamping plate (3) is fixed with a punching assembly (10), a trimming assembly (11), a 45° bending part (12), a 90° bending part (13) and a cutting block (14) in sequence from left to right; The punching assembly (10) is used to punch holes in the fixing section (171) and the bending section (172); The trimming assembly (11) is used to cut the fixed section (171) and the bent section (172) into a fixed plate (173) and a bent plate (174) respectively; A 45° support block (19) is provided on the lower template (6) directly below the 45° bent part (12); adjacent surfaces between the 45° bent part (12) and the 45° support block (19) are both 45° inclined surfaces; the 45° bent part (12) and the 45° support block (19) are used to bend the end of the bent plate (174) by 45°; A 90° support block (20) is provided on the lower template (6) directly below the 90° bent part (13); adjacent surfaces of the 90° bent part (13) and the 90° support block (20) are parallel to each other; the 90° bent part (13) and the 90° support block (20) are used to bend the connection between the bent plate (174) and the fixed plate (173) by 90° to form an L-shaped plate (18); The cutting block (14) is used to cut off the connection between two adjacent L-shaped plates (18).
2. The L-shaped plate stamping and bending continuous die according to claim 1, characterized in that: The punching assembly (10) comprises a first punch (101) fixed on the upper clamping plate (3) and two second punches (102), wherein the two second punches (102) are symmetrically arranged on both sides of the first punch (101).
3. The L-shaped plate stamping and bending continuous die according to claim 2, characterized in that: The trimming assembly (11) comprises a first trimming part (111) and a second trimming part (112) which are respectively located directly above the bending section (172) and the fixing section (171).
4. The L-shaped plate stamping and bending continuous die according to claim 3, characterized in that: The first trimming part (111) is L-shaped in a top view projection. The first trimming part (111) comprises a vertical section (113) and a horizontal section (114) which are vertically connected to each other. The vertical section (113) is used to cut the bending section (172) into a bending plate (174).
5. The L-shaped plate stamping and bending continuous die according to claim 4, characterized in that: A rectangular block is arranged at the end of the vertical section (113), and the four corners of the rectangular block are all rounded; and protrusions are arranged on both sides of the vertical section (113).
6. The L-shaped plate stamping and bending continuous die according to claim 3, characterized in that: The second trimming part (112) is T-shaped in a top view, and the T-shaped vertical section on the second trimming part (112) is used to cut the fixing section (171) into a fixing plate (173).
7. The L-shaped plate stamping and bending continuous die according to claim 3, characterized in that: The side projection of the bottom end of the 45° bent part (12) is in the shape of an inverted triangle, the 45° support block (19) is in the shape of a right-angled trapezoid, and chamfered corners are arranged at the upper and lower ends of the adjacent surfaces of the 45° bent part (12) and the 45° support block (19).
8. The L-shaped plate stamping and bending continuous die according to claim 3, characterized in that: The side projection of the bottom end of the 90° bent part (13) is in the shape of an inverted right-angled trapezoid, the 90° support block (20) is in the shape of a rectangular parallelepiped, and chamfered corners are arranged at the upper and lower ends of the bottom of the 90° bent part (13) and the vertical flat surface of the 90° support block (20).
9. The L-shaped plate stamping and bending continuous die according to claim 1, characterized in that: An upper pad (2) is arranged on the top surface of the upper clamping plate (3), and a stripping back plate (4) and an upper stripping plate (5) are arranged in sequence on the bottom of the upper clamping plate (3).
10. The L-shaped plate stamping and bending continuous die according to claim 1, characterized in that: A lower pad (7) is provided on the bottom surface of the lower template (6).