Trimming fine blanking die and equipment

Abstract

The utility model discloses a trimming fine blanking die and equipment, and relates to the technical field of workpiece trimming processing, the trimming fine blanking equipment comprises a punching rack, the upper part of the punching rack is fixedly connected with a hydraulic cylinder, the end part of the hydraulic cylinder is fixedly connected with an upper baffle plate, and the upper baffle plate is movably connected with the punching rack; a positioning hole plate, a hollow protection plate and a trimming top die are sequentially installed at the bottom of the upper baffle from top to bottom, a trimming bottom die fixedly connected with the punching rack is correspondingly arranged below the punching rack, and a bottom die fixing block corresponding to the trimming top die is fixedly connected to the trimming bottom die. According to the utility model, the main position of the workpiece to be trimmed is fixed through the extrusion between the pressing template and the carrier mother block, and the edge hole cutting die cutter and the central shearing die cutter are respectively matched with the shearing hole, so that the hole in the inner side of the workpiece to be trimmed is trimmed; and the edge can be prevented from being bent in cooperation with the pressing template and the carrying mother block, and therefore the edge cutting precision of the workpiece to be subjected to edge cutting is improved.

Description

Technical Field

[0001] This utility model specifically relates to the field of workpiece trimming technology, and more specifically to a trimming precision punching die and equipment. Background Technology

[0002] Precision blanking equipment is mainly used for precision edge trimming of metal sheets or blanks to obtain high-precision, high-quality part edges. The core component of precision blanking equipment is the precision blanking die, which is a type of die used in metal processing. It is mainly used for precision edge trimming of stamped parts to obtain high-precision, high-quality edge dimensions and surface quality. The working principle of precision blanking die is to use the pressure of the punch press to shear the metal sheet through the punch and die of the die. In the precision blanking process, in addition to the blanking force, a reverse pressure and a blank holder force are also applied, so that the material is blanked under triaxial compressive stress, thereby improving the edge trimming quality.

[0003] However, in practice, it has been noted that most molds currently only design blank holder force at the shearing position. When the cutting edge is compressed, the load it bears will extend outward. At this time, the area of ​​the metal material not covered by the blank holder force will also be affected, resulting in deformation or bending, which will affect the quality of the workpiece after cutting. Utility Model Content

[0004] The purpose of this invention is to provide a precision punching and trimming device that fixes the position of the workpiece to be trimmed by pressing between the template and the support block, preventing the workpiece from shifting during trimming. Furthermore, the central shearing die and the edge hole shearing die respectively cooperate with the shearing holes, thereby improving trimming accuracy and preventing bending at the shearing position, further enhancing trimming precision. This addresses the technical problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A fine stamping and trimming equipment includes a stamping frame, a hydraulic cylinder fixedly connected to the top of the stamping frame, and an upper baffle fixedly connected to the end of the hydraulic cylinder, and the upper baffle is movably connected to the stamping frame.

[0007] The bottom of the upper baffle is provided with a positioning hole plate, a hollow guard plate and a cutting edge top die from top to bottom, while a cutting edge bottom die is fixedly connected to the stamping frame below the stamping frame, and a bottom die fixing block corresponding to the cutting edge top die is fixedly connected to the cutting edge bottom die.

[0008] As a further technical solution of this utility model, the cutting bottom mold includes a loading template, both sides of which are fixedly connected to L-shaped brackets that are fixedly connected to the stamping frame, and a weighing bracket is fixedly connected below the loading template. Positioning columns are fixedly connected in a rectangular array above the loading template.

[0009] As a further technical solution of this utility model, the bottom mold fixing block includes a loading mother block fixedly connected above the loading template, and a shearing hole is provided on the inner side of the loading mother block, and one end of the shearing hole extends through the loading template to the bottom of the loading template.

[0010] As a further technical solution of this utility model, the upper baffle includes a connecting plate, in which a sliding hole seat corresponding to the positioning post is provided, and the end of the positioning post away from the loading template is inserted into the inner side of the sliding hole seat.

[0011] As a further technical solution of this utility model, compression springs are arranged in a rectangular array below the connecting plate, and the end of the compression spring away from the connecting plate passes through the positioning hole plate and contacts the top of the cutting edge mold.

[0012] As a further technical solution of this utility model, the cutting top mold includes an outer mold frame fixedly connected to the bottom of the hollow protective plate, a pressing template is movably connected to the outer mold frame, and a limiting pressure plate that slides with the inner side of the hollow protective plate is fixedly connected above the pressing template.

[0013] As a further technical solution of this utility model, the upper part of the limiting pressure plate is provided with a positioning groove corresponding to the compression spring, and the end of the compression spring is engaged with the positioning groove. The bottom of the outer mold frame is integrally provided with a cutting edge corresponding to the loading mother block.

[0014] As a further technical solution of this utility model, the inner side of the pressing template is respectively slidably fitted with a central shearing die and a side hole cutting die corresponding to the shearing hole, and the top of the central shearing die and the side hole cutting die both penetrate the limiting pressure plate and the positioning hole plate and are fixedly connected to the connecting plate.

[0015] As a further technical solution of this utility model, a workpiece to be cut is placed above the loading block, and a controller is fixedly connected to the side of the stamping frame.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. In this utility model, the workpiece to be cut is placed above the carrier block, the cutting top mold moves downward, and the workpiece to be cut is squeezed and fixed by the cooperation between the pressing template and the carrier block. Moreover, the cutting blade cooperates with the outer side of the carrier block to quickly cut the outermost edge of the workpiece to be cut.

[0018] 2. This utility model fixes the main position of the workpiece to be cut by pressing between the pressing template and the carrying block, and prevents the edge of the workpiece from bending during cutting, thereby improving the accuracy of cutting the workpiece. Moreover, the edge cutting die and the center shearing die cooperate with the shearing hole to cut the hole on the inside of the workpiece. The pressing template and the carrying block can prevent the edge from bending, thereby improving the cutting accuracy of the workpiece.

[0019] 3. This utility model provides protection for the components between the connecting plate and the outer mold frame through the positioning hole plate and the hollow protective plate. The positioning hole plate also limits the compression spring, allowing it to extend and retract within the positioning hole plate and preventing it from bending under compression. It cooperates with the positioning groove on the limiting pressure plate to ensure that downward pressure is applied to the pressing template, thereby applying a fixing pressure to the workpiece to be cut, preventing the workpiece from shifting during cutting, and further improving the cutting accuracy of the workpiece to be cut. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model in use.

[0021] Figure 2 This utility model Figure 1 A magnified view of a portion of the image.

[0022] Figure 3 This is a three-dimensional structural diagram of the edge-cutting mold in this utility model.

[0023] Figure 4 This utility model Figure 3 The main view.

[0024] Figure 5 This is a three-dimensional structural diagram of the cutting edge bottom mold in this utility model.

[0025] Figure 6 This is a schematic diagram showing the position and structure of the upper baffle, positioning hole plate, and hollow protective plate in this utility model.

[0026] Figure 7 This is a schematic diagram of the bottom structure of the upper baffle in this utility model.

[0027] Figure 8 This utility model Figure 6 A partial structural diagram.

[0028] Figure 9 This utility model Figure 8 A schematic diagram of the top structure.

[0029] Figure 10 This is a three-dimensional structural diagram of the cutting edge top mold in this utility model.

[0030] Figure 11 This utility model Figure 10 A schematic diagram of the bottom structure.

[0031] Figure 12 This utility model Figure 11 A partial structural diagram.

[0032] Figure 13 This utility model Figure 12 Another perspective view.

[0033] Figure 14 This is a schematic diagram showing the position and structure of the outer mold frame and the pressing template in this utility model.

[0034] Figure 15 This utility model Figure 14 A schematic diagram of the bottom structure.

[0035] Figure 16 This is a schematic diagram of the position and structure of the workpiece to be cut before shearing in this utility model.

[0036] Figure 17 This is a schematic diagram showing the position and structure of the loading template and the bottom mold fixing block in this utility model.

[0037] Figure 18 This utility model Figure 17 A schematic diagram of the bottom structure.

[0038] In the picture:

[0039] Stamping frame-1, hydraulic cylinder-2, controller-3, trimming bottom die-4, loading template-41, L-shaped bracket-42, weighing bracket-43, positioning column-44, upper baffle-5, connecting plate-51, sliding hole seat-52, compression spring-53, positioning hole plate-6, hollow guard plate-7, trimming top die-8, outer mold frame-81, trimming blade-82, pressing template-83, center shearing die-cutter-84, edge hole cutting die-cutter-85, limiting pressure plate-86, positioning groove-87, bottom die fixing block-9, loading mother block-91, shearing hole-92, workpiece to be trimmed-10. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0041] Please see Figure 1-18 This utility model provides a trimming and fine stamping equipment, including a stamping frame 1, a hydraulic cylinder 2 fixedly connected to the upper part of the stamping frame 1, and an upper baffle 5 fixedly connected to the end of the hydraulic cylinder 2, and the upper baffle 5 is movably connected to the stamping frame 1.

[0042] The bottom of the upper baffle 5 is provided with a positioning hole plate 6, a hollow guard plate 7 and a cutting edge top die 8 in sequence from top to bottom. The bottom of the stamping frame 1 is provided with a cutting edge bottom die 4 that is fixedly connected to the stamping frame 1, and a bottom die fixing block 9 corresponding to the cutting edge top die 8 is fixedly connected to the cutting edge bottom die 4.

[0043] Furthermore, the cutting bottom mold 4 includes a loading template 41, with L-shaped brackets 42 fixedly connected to the stamping frame 1 on both sides of the loading template 41, a weighing bracket 43 fixedly connected below the loading template 41, and positioning columns 44 fixedly connected in a rectangular array above the loading template 41.

[0044] More specifically, the bottom mold fixing block 9 includes a loading mother block 91 fixedly connected above the loading template 41, and a shearing hole 92 is provided on the inner side of the loading mother block 91, and one end of the shearing hole 92 extends through the loading template 41 to the bottom of the loading template 41.

[0045] Furthermore, the upper baffle 5 includes a connecting plate 51, in which a sliding hole seat 52 corresponding to the positioning post 44 is provided, and the end of the positioning post 44 away from the loading template 41 is inserted into the inner side of the sliding hole seat 52.

[0046] More specifically, compression springs 53 are arranged in a rectangular array below the connecting plate 51, and one end of the compression spring 53 away from the connecting plate 51 passes through the positioning hole plate 6 and contacts the top of the cutting edge mold 8.

[0047] Furthermore, the cutting top mold 8 includes an outer mold frame 81 fixedly connected to the lower part of the hollow protective plate 7, a pressing template 83 movably connected in the outer mold frame 81, and a limiting pressure plate 86 fixedly connected above the pressing template 83 and slidingly engaging with the inner side of the hollow protective plate 7.

[0048] By adopting the above technical solution, the positioning hole plate 6 and the hollow protective plate 7 provide protection for the components between the connecting plate 51 and the outer mold frame 81. The positioning hole plate 6 also limits the compression spring 53, allowing the compression spring 53 to extend and retract within the positioning hole plate 6, preventing the compression spring 53 from bending when compressed. It cooperates with the positioning groove 87 on the limiting pressure plate 86 to ensure that downward pressure is applied to the pressing template 83, thereby applying a fixing pressure to the workpiece 1 to be cut, preventing the workpiece 1 to be cut from moving during cutting, and further improving the cutting accuracy of the workpiece 10 to be cut by the equipment.

[0049] Furthermore, the upper part of the limiting pressure plate 86 is provided with a positioning groove 87 corresponding to the compression spring 53, and the end of the compression spring 53 is engaged with the positioning groove 87. The bottom of the outer mold frame 81 is integrally provided with a cutting edge 82 corresponding to the loading mother block 91.

[0050] More specifically, the inner side of the pressing template 83 is respectively slidably fitted with a central shearing die 84 and a side hole shearing die 85 corresponding to the shearing hole 92, and the tops of the central shearing die 84 and the side hole shearing die 85 are fixedly connected to the connecting plate 51 through the limiting pressure plate 86 and the positioning hole plate 6.

[0051] Furthermore, a workpiece 10 to be cut is placed above the loading mother block 91, and a controller 3 is fixedly connected to the side of the stamping frame 1.

[0052] By adopting the above technical solution, the main position of the workpiece 10 to be cut is fixed by the compression between the pressing template 83 and the loading mother block 91, and bending is prevented when the edge of the workpiece 10 is cut, thereby improving the accuracy of cutting the workpiece 10. Moreover, the edge hole cutting die 85 and the center shearing die 84 cooperate with the shearing hole 92 to perform the cutting operation on the hole on the inner side of the workpiece 10. In addition, the pressing template 83 and the loading mother block 91 can prevent the edge from bending, thereby improving the cutting accuracy of the workpiece 10.

[0053] Furthermore, the pressing template 83 and the loading mother block 91 are correspondingly set, and the inner side of the cutting edge 82 corresponds to the loading mother block 91. By sliding the cutting edge 82 on the outer side of the loading mother block 91, the edge of the workpiece 10 to be cut is cut.

[0054] Furthermore, the shearing hole 92 is vertically continuous. When the central shearing die 84 and the side hole shearing die 85 work together, the scrap material cut off will fall downward inside the shearing hole 92, thereby achieving automatic material unloading without the need for manual separation of the workpiece and scrap.

[0055] Furthermore, the connecting plate 51 is symmetrically fixed with cylindrical heads for positioning the workpiece 10 to be cut, and the cylindrical heads are located on the side of the loading block 91. When the workpiece 10 to be cut is placed on the loading block 91, the side of the workpiece 10 to be cut is in contact with the outer side of the cylindrical head, thereby positioning the workpiece 10 to be cut and improving the cutting accuracy of the equipment.

[0056] The working principle of this utility model is as follows: In use, the workpiece 10 to be trimmed is first placed above the loading block 91. Then, the controller 3 controls the output rod of the hydraulic cylinder 2 to move downwards. The output rod of the hydraulic cylinder 2 pushes the upper baffle 5 downwards. The pressing template 83 below the upper baffle 5 first contacts the workpiece 10 to be trimmed. The position of the workpiece 10 to be trimmed is fixed by the pressure between the pressing template 83 and the loading block 91. Then, the upper baffle 5 and the trimming top mold 8 continue to move downwards. At this time, the compression spring 53 in the positioning hole plate 6 contracts, and simultaneously, the loading block... The positioning post 44 on the template 41 is inserted into the corresponding sliding hole seat 52 on the connecting plate 51 to play a positioning role and prevent the connecting plate 51 from shifting when it moves. At this time, the cutting edge 82 cooperates with the outer side of the carrying block 91 to cut the outer side of the workpiece 10 to be cut. At the same time, the center shearing die 84 and the side hole cutting die 85 in the pressing template 83 cooperate with the corresponding shearing holes 92 in the carrying block 91 to remove the excess waste material inside. The structure is simple, the operation is very convenient, and the labor intensity is effectively reduced.

[0057] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0058] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A precision blanking and trimming device, characterized in that: Includes a stamping frame (1), with a hydraulic cylinder (2) fixedly connected to the top of the stamping frame (1), and an upper baffle (5) fixedly connected to the end of the hydraulic cylinder (2), and the upper baffle (5) is movably connected to the stamping frame (1); The bottom of the upper baffle (5) is provided with a positioning hole plate (6), a hollow guard plate (7) and a cutting edge top mold (8) from top to bottom. The bottom of the stamping frame (1) is provided with a cutting edge bottom mold (4) that is fixedly connected to the stamping frame (1), and a bottom mold fixing block (9) corresponding to the cutting edge top mold (8) is fixedly connected to the cutting edge bottom mold (4).

2. The edge trimming and fine punching equipment according to claim 1, characterized in that: The side of the press frame (1) is also fixedly connected to a controller (3).

3. The edge trimming and fine punching equipment according to claim 1, characterized in that: The cutting bottom mold (4) includes a loading template (41), both sides of which are fixedly connected to L-shaped brackets (42) that are fixedly connected to the stamping frame (1), and a weighing bracket (43) is fixedly connected below the loading template (41). Positioning columns (44) are fixedly connected in a rectangular array above the loading template (41).

4. The edge trimming and fine punching equipment according to claim 3, characterized in that: The bottom mold fixing block (9) includes a loading mother block (91) fixedly connected above the loading template (41), and a shearing hole (92) is provided on the inner side of the loading mother block (91), and one end of the shearing hole (92) extends through the loading template (41) to the bottom of the loading template (41).

5. The edge trimming and fine punching equipment according to claim 1, characterized in that: The upper baffle (5) includes a connecting plate (51), in which a sliding hole seat (52) corresponding to the positioning post (44) is provided, and one end of the positioning post (44) away from the loading template (41) is inserted into the inner side of the sliding hole seat (52).

6. The edge trimming and fine punching equipment according to claim 5, characterized in that: Compression springs (53) are arranged in a rectangular array below the connecting plate (51), and the end of the compression spring (53) away from the connecting plate (51) passes through the positioning hole plate (6) and contacts the top of the cutting edge mold (8).

7. The edge trimming and fine punching equipment according to claim 6, characterized in that: The cutting top mold (8) includes an outer mold frame (81) fixedly connected to the bottom of the hollow protective plate (7), a pressing template (83) is movably connected in the outer mold frame (81), and a limiting pressure plate (86) that slides with the inner side of the hollow protective plate (7) is fixedly connected above the pressing template (83).

8. The edge trimming and fine punching equipment according to claim 7, characterized in that: The upper part of the limiting pressure plate (86) is provided with a positioning groove (87) corresponding to the compression spring (53), and the end of the compression spring (53) is engaged with the positioning groove (87). The bottom of the outer mold frame (81) is integrally provided with a cutting edge (82) corresponding to the loading mother block (91).

9. The edge trimming and fine punching equipment according to claim 8, characterized in that: The inner side of the pressing template (83) is respectively fitted with a central shearing die (84) and a side hole cutting die (85) corresponding to the shearing hole (92), and the top of the central shearing die (84) and the side hole cutting die (85) are fixedly connected to the connecting plate (51) through the limiting pressure plate (86) and the positioning hole plate (6).

10. The edge trimming and fine punching equipment according to claim 9, characterized in that: The workpiece (10) to be cut is placed on top of the mother block (91).

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