Stamping device for preventing metal frame piece of projector from shaking

Abstract

The utility model discloses a stamping device for preventing a metal frame piece of a projector from shaking, which comprises an upper die mechanism, a lower die mechanism and a lower die mechanism, the lower die mechanism comprises a lower base plate, a lower die plate, a lower die forming insert and a guide part, the lower die plate is fixedly installed on the lower base plate, the lower die forming insert is elastically connected to the lower base plate and penetrates through the lower die plate, a positioning frame is arranged on the surface of the lower die forming insert, and the frame part is placed on the lower die forming insert; an avoiding hole matched with the lower mold forming insert in shape is formed in the lower mold plate, a mounting groove is formed in the hole wall of the avoiding hole, the guide piece is elastically connected into the mounting groove, a movable block is further arranged on the guide piece, and the movable block is elastically connected into the guide piece. Compared with the prior art, the utility model solves the problems that the metal frame part of the projector lacks positioning during punch forming and is easy to deviate during demoulding.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping devices, in particular to a stamping device for preventing a metal frame part of a projector from shaking. Background Art

[0002] A stamping die is a special process equipment used to process materials into parts during cold stamping. For example, Chinese Patent 201710633375.5 discloses a continuous stamping die for metal stamping, the structure of which includes: a stamping spring cylinder, a hanging bracket plate, a stamping die bottom plate, a lower die plate block, a forming base bottom plate, a forming block base, a stamping forming block, a lifting threaded column, a lifting clamping block, and a stamping die top plate. The hanging bracket plate is horizontally welded under the stamping die top plate, the stamping die top plate and the stamping die bottom plate are horizontally fixed at the upper and lower ends of the lifting threaded column, the lifting threaded column vertically penetrates the lifting clamping block and cooperates with each other, the stamping forming block is vertically welded on the forming block base, and the forming block base is horizontally fixed on the forming base bottom plate.

[0003] In the existing stamping process of metal frame parts for projectors, the edges of the raw materials of the metal frame parts to be formed need to be bent and turned up, but due to the thin thickness and large area of ​​the product, it is not easy to place the product accurately, resulting in poor molding quality. In addition, due to the light weight of the metal frame parts, the position is easily offset during demolding, which causes inconvenience in clamping and cutting. Utility Model Content

[0004] The utility model aims to provide a stamping device for preventing a metal frame of a projector from shaking, so as to solve the problem that the metal frame of the projector lacks positioning during stamping and is easily displaced during demoulding.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solution: a stamping device for preventing the metal frame of a projector from shaking, comprising:

[0006] The upper die mechanism comprises an upper die plate, an upper punch and a stripper plate, wherein the upper punch is fixedly mounted on the upper die plate, the stripper plate is elastically connected to the upper die plate, and the upper punch is inserted through the stripper plate;

[0007] The lower mold mechanism includes a lower pad, a lower mold plate, a lower mold forming insert and a guide member. The lower mold plate is fixedly mounted on the lower pad, the lower mold forming insert is elastically connected to the lower pad, the lower mold forming insert is penetrated by the lower mold plate, a positioning frame is arranged on the surface of the lower mold forming insert, the frame member is placed on the lower mold forming insert, the lower mold plate is provided with an avoidance hole whose shape matches the lower mold forming insert, an installation groove is arranged on the hole wall of the avoidance hole, the guide member is elastically connected in the installation groove, a movable block is also arranged on the guide member, and the movable block is elastically connected in the guide member.

[0008] As a further description of the above technical solution:

[0009] The upper punch is provided with a stripping ejector pin, which is elastically connected to the upper punch.

[0010] As a further description of the above technical solution:

[0011] Two stripping ejectors arranged in parallel are arranged on the upper punch.

[0012] As a further description of the above technical solution:

[0013] Arc chamfered portions are arranged at the corners of the positioning frame.

[0014] As a further description of the above technical solution:

[0015] The back side of the lower mold forming insert is provided with three first elastic elements arranged in parallel.

[0016] As a further description of the above technical solution:

[0017] A guiding slope inclined downward is arranged on the top of the movable block.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0019] 1. In the utility model, when the metal frame of the projector is stamped and formed, the frame is placed on the lower die forming insert, the edge of the frame to be flanging extends out of the lower die forming insert and is supported by the lower die plate, and the center of the frame of the frame structure is sleeved on the positioning frame on the surface of the lower die forming insert. The outer surface of the frame is positioned by a guide member. When the frame is placed, its edge pushes the guide member away from the lower die forming insert, so that the guide member firmly positions the frame member under the elastic force of an elastic element such as a spring. After that, the upper die mechanism moves downward, the upper die mechanism and the lower die mechanism are molded together, and the upper punch presses down the lower die forming insert, so that the frame member is flanging and formed, and the movable block is compressed in the guide member. After the flanging of the frame member is formed, the guide member moves to the lower die forming insert under the elastic force to position the formed frame member. After the upper die mechanism and the lower die mechanism are separated, the position of the frame member is positioned to avoid the frame member from shaking, which is convenient for material removal. The device effectively solves the problem of lack of positioning during stamping and easy position displacement during demolding of the metal frame of the projector.

[0020] 2. In the utility model, a protrusion is provided on one of the opposite side walls of the movable block, and a slide groove corresponding to the position of the protrusion is provided on the side wall of the mounting groove. The protrusion is slidably connected in the slide groove, which is convenient for controlling the movable block to slide smoothly in the vertical direction in the guide member to ensure the positioning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 The schematic diagram is a structural diagram of a stamping device for preventing a metal frame of a projector from shaking.

[0023] Figure 2 A schematic diagram of the structure of the lower template in a punching device to prevent the metal frame of a projector from shaking Figure 1 .

[0024] Figure 3 A schematic diagram of the structure of the lower template in a punching device to prevent the metal frame of a projector from shaking Figure 2 .

[0025] Figure 4 for Figure 3 A partial enlarged view of point A in the middle.

[0026] Legend:

[0027] 1. Upper template; 11. Upper punch; 111. Stripping ejector pin; 12. Stripping plate; 2. Lower pad; 21. Lower template; 211. Mounting groove; 22. Lower die forming insert; 221. Positioning frame; 2211. Arc chamfered portion; 222. First elastic element; 23. Guide member; 231. Movable block; 2311. Guide slope; 3. Frame member. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-4 The utility model provides a technical solution: a stamping device for preventing the metal frame of a projector from shaking, comprising:

[0030] The upper die mechanism comprises an upper die plate 1, an upper punch 11 and a stripper plate 12, wherein the upper punch 11 is fixedly mounted on the upper die plate 1, the stripper plate 12 is elastically connected to the upper die plate 1, and the upper punch 11 is passed through the stripper plate 12;

[0031] The lower mold mechanism includes a lower pad 2, a lower mold plate 21, a lower mold forming insert 22 and a guide member 23. The lower mold plate 21 is fixedly mounted on the lower pad 2, the lower mold forming insert 22 is elastically connected to the lower pad 2, the lower mold forming insert 22 is penetrated by the lower mold plate 21, a positioning frame 221 is arranged on the surface of the lower mold forming insert 22, the frame member 3 is placed on the lower mold forming insert 22, an avoidance hole whose shape matches the lower mold forming insert 22 is arranged on the lower mold plate 21, an installation groove 211 is arranged on the hole wall of the avoidance hole, the guide member 23 is elastically connected in the installation groove 211, and a movable block 231 is also arranged on the guide member 23, and the movable block 231 is elastically connected in the guide member 23.

[0032] The upper punch 11 is provided with a stripping pin 111, which is elastically connected to the upper punch 11 to facilitate the separation of the formed frame member 3 from the upper punch 11. Specifically, two stripping pins 111 arranged in parallel can be provided on the upper punch 11 to further improve the stripping effect.

[0033] Arc chamfered portions 2211 are provided at the corners of the positioning frame 221 to facilitate separation of the formed frame member 3 from the positioning frame 221 and avoid damage to the frame member 3 .

[0034] Three first elastic elements 222 arranged in parallel are arranged on the back of the lower mold molding insert 22 to ensure that the lower mold molding insert 22 floats up and down smoothly.

[0035] A downwardly inclined guiding slope 2311 is provided on the top of the movable block 231 to facilitate placing the frame member 3 on the lower mold.

[0036] A protrusion is provided on an opposite side wall of the movable block 231, and a sliding groove corresponding to the position of the protrusion is provided on the side wall of the installation groove 211. The protrusion is slidably connected in the sliding groove, which is convenient for controlling the movable block 231 to slide smoothly in the vertical direction in the guide member 23 to ensure the positioning effect.

[0037] Working principle: When the metal frame of the projector is stamped and formed, the frame member 3 is placed on the lower die forming insert 22, the edge of the frame member 3 to be flanging extends out of the lower die forming insert 22 and is supported by the lower mold plate 21, and the center of the frame member 3 of the frame structure is set on the positioning frame 221 on the surface of the lower die forming insert 22. The outer surface of the frame member 3 is positioned by the guide member 23. When the frame member 3 is placed, its edge pushes the guide member 23 away from the lower die forming insert 22, so that the guide member 23 firmly positions the frame member 3 under the elastic force of an elastic element such as a spring. After that, the upper die mechanism moves downward, the upper die mechanism and the lower die mechanism are molded together, and the upper punch 11 presses down the lower die forming insert 22, so that the frame member 3 is flanging-formed, and at the same time, the movable block 231 is compressed in the guide member 23. After the frame member 3 is flanging-formed, the guide member 23 moves toward the lower die forming insert 22 under the elastic force to position the formed frame member 3. After the upper mold mechanism and the lower mold mechanism are separated, the position of the frame member 3 is positioned to prevent the frame member from shaking, which is convenient for material removal. The device effectively solves the problem of lack of positioning during stamping of the metal frame member of the projector and easy position deviation during demolding.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A punching device for preventing a metal frame of a projector from shaking, characterized in that: include: An upper die mechanism, comprising an upper die plate, an upper punch and a stripper plate, wherein the upper punch is fixedly mounted on the upper die plate, the stripper plate is elastically connected to the upper die plate, and the upper punch is passed through the stripper plate; The lower mold mechanism includes a lower pad, a lower mold plate, a lower mold forming insert and a guide member, wherein the lower mold plate is fixedly mounted on the lower pad, the lower mold forming insert is elastically connected to the lower pad, the lower mold forming insert is passed through the lower mold plate, a positioning frame is provided on the surface of the lower mold forming insert, a frame member is placed on the lower mold forming insert, a avoidance hole whose shape matches the lower mold forming insert is provided on the lower mold plate, an installation groove is provided on the hole wall of the avoidance hole, the guide member is elastically connected in the installation groove, and a movable block is also provided on the guide member, and the movable block is elastically connected in the guide member.

2. A punching device for preventing a metal frame of a projector from shaking according to claim 1, characterized in that: The upper punch is provided with a stripping ejector pin, and the stripping ejector pin is elastically connected to the upper punch.

3. A punching device for preventing a metal frame of a projector from shaking according to claim 2, characterized in that: The upper punch is provided with two stripping ejector pins arranged in parallel.

4. The punching device for preventing the metal frame of a projector from shaking according to claim 1, characterized in that: Arc chamfered portions are arranged at the corners of the positioning frame.

5. The punching device for preventing the metal frame of a projector from shaking according to claim 1, characterized in that: The back side of the lower mold forming insert is provided with three first elastic elements arranged in parallel.

6. The punching device for preventing the metal frame of a projector from shaking according to claim 1, characterized in that: A guiding slope inclined downward is arranged on the top of the movable block.

7. The punching device for preventing the metal frame of a projector from shaking according to claim 1, characterized in that: A protrusion is arranged on an opposite side wall of the movable block, a sliding groove corresponding to the position of the protrusion is arranged on the side wall of the mounting groove, and the protrusion is slidably connected in the sliding groove.

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