Optical-level curved surface bending device

Abstract

The utility model belongs to the technical field of reflection cup processing, and particularly relates to an optical-grade curved surface bending device which comprises a machine body, a male die fixing plate is arranged on the machine body, a male die is detachably connected to the male die fixing plate, a female die driven by a driving mechanism is arranged at the top of the male die, the driving mechanism drives the female die to move up and down, and the male die fixing plate is detachably connected with the male die. The top of the male die abuts against the bottom of the female die, a containing part is arranged at the top of the male die, a cavity is formed in the female die, a matching part matched with the containing part is arranged in the cavity, the upper portion of the containing part is located in the cavity, and an aluminum plate is placed between the containing part and the matching part. And the bottom wall of the matching part and the top wall of the placing part are arc-shaped. A plurality of curved-surface aluminum plates can be manufactured at a time, and the machining efficiency is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of reflective cup processing, and in particular relates to an optical-grade curved surface bending device. Background Art

[0002] With the development of technology in the lighting industry, more and more lighting sources use LED chips inside. In addition to traditional lenses for collecting light, reflective cups can also be used for collecting light, and curved surfaces are an indispensable component of reflective cups.

[0003] The bending machine for processing reflective panels with application number CN201620365250.X places the reflective panel to be bent on the frame above the forming channel, and the cylinder pushes the pushing frame to move. The pushing frame first drives the slide plate to move. When the slide plate moves, the bearing moves in the first slide groove, and the connecting plate, the forming plate and the pressing plate move downward. The pressing plate presses the reflective panel placed on the frame, and the connecting plate continues to move downward after compressing the second return spring. The forming plate is inserted into the forming channel to achieve a first bending of the reflective panel. Then the pushing frame pushes the forming block to move, and the forming block compresses the first return spring. When the forming block moves to the bottom of the forming channel, a second bending of the reflective panel is achieved; when the cylinder contracts, the pushing frame and the slide plate are reset, and the connecting plate, the forming plate and the pressing plate move up and reset, and the forming block is reset under the action of the first reset spring.

[0004] However, the above-mentioned bending machine can only process a reflective plate with a curved surface at a time, and the processing efficiency is low. Utility Model Content

[0005] The purpose of the utility model is to provide an optical-grade curved surface bending device to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above technical purpose, the technical solution of the utility model is:

[0007] An optical-grade curved surface bending device comprises a machine body, wherein a punch fixing plate is provided on the machine body, a punch is detachably connected to the punch fixing plate, a die driven by a driving mechanism is provided on the top of the punch, the driving mechanism drives the die to move up and down, the top of the punch abuts against the bottom of the die, a placement portion is provided on the top of the punch, a cavity is provided inside the die, a mating portion mating with the placement portion is provided in the cavity, the upper portion of the placement portion is located in the cavity, an aluminum plate is placed between the placement portion and the mating portion, and the bottom wall of the mating portion and the top wall of the placement portion are both arranged in an arc shape.

[0008] As an improvement, the matching portion is provided with a plurality of first through holes, and the top ends and the bottom ends of the plurality of first through holes respectively penetrate the top wall and the bottom wall of the matching portion.

[0009] As a further improvement, the placement portion is provided with a plurality of glue injection through holes, one end of the plurality of glue injection through holes passes through the top wall of the placement portion, and the other end passes through the bottom wall of the die.

[0010] As a further improvement, a plurality of tool path grooves are provided on the placement portion, the plurality of tool path grooves are arranged in one-to-one correspondence with the plurality of first through holes, and the plurality of tool path grooves are all arranged in a ring shape.

[0011] As a further improvement, the positions of the plurality of glue-filling through holes correspond to the positions of the plurality of first through holes, and the top ends of the side walls of the plurality of glue-filling through holes abut against the bottom of the aluminum plate.

[0012] As a further improvement, the outer side walls of the plurality of glue-filling through holes are respectively flush with the inner side walls of the plurality of first through holes, and the plurality of tool path grooves are respectively arranged around the outer side walls of the plurality of glue-filling through holes.

[0013] As a further improvement, the top wall of the matching portion is flush with the top wall of the die.

[0014] Due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0015] The optical-grade curved surface bending device provided by the utility model bends an aluminum plate into a suitable curved surface through a male die and a female die, then injects glue between the aluminum plate and the placement part through the glue injection through hole, fixes the aluminum plate on the placement part, then separates the female die from the male die, and cuts the bent aluminum plate along the tool path groove through a cutting device to form a plurality of curved aluminum plates with suitable mechanical shapes, and finally deglueizes the plurality of curved aluminum plates to separate them from the male die, so that a plurality of curved aluminum plates can be manufactured at one time, and the processing efficiency is high.

[0016] During the process of extruding the aluminum plate by the die and the punch, since the die is provided with multiple first through holes, multiple protrusions corresponding to the multiple first through holes are formed on the aluminum plate, and the multiple protrusions are mechanical shapes suitable for the curved aluminum plate. The aluminum plate is bonded to the placement portion through multiple glue-filled through holes, and the positions of the multiple glue-filled through holes correspond to the positions of the multiple first through holes, and the outer side walls of the multiple glue-filled through holes are respectively flush with the inner side walls of the multiple first through holes. The protrusions formed on the aluminum plate can be accurately bonded to the top ends of the side walls of the multiple glue-filled through holes, and multiple tool path grooves are respectively arranged around the outer side walls of the multiple glue-filled through holes. After the cutting device cuts along the tool path grooves, the shapes of the multiple curved aluminum plates formed are more precise. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of this embodiment;

[0018] Figure 2 Schematic diagram of the structure of the concave mold and the convex mold in this embodiment;

[0019] Figure 3 Schematic diagram of the bottom structure of the concave mold in this embodiment;

[0020] Among them: 1-machine body, 2-punch, 3-die, 4-driving mechanism, 5-placing part, 6-cavity, 7-matching part, 8-first through hole, 9-glue injection through hole, 10-tool path groove, 11-curved aluminum plate. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the specific implementation methods and the accompanying drawings. The accompanying drawings are only for illustrative purposes and are only schematic diagrams, not actual drawings, and should not be construed as limiting the present application. In order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. It is understandable to those skilled in the art that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0022] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on the present application. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0023] like Figure 1-3 As shown, an optical-grade curved surface bending device includes a body 1, a punch fixing plate is provided on the body 1, a punch 2 is detachably connected to the punch fixing plate, a die 3 driven by a driving mechanism 4 is provided on the top of the punch 2, the driving mechanism 4 is fixed on the body 1, and the driving mechanism 4 is used to drive the die 3 to move up and down. The driving mechanism 4 can be a cylinder or other structure as long as it can drive the die 3 to move up and down. The aluminum plate is placed between the die 3 and the punch 2.

[0024] In this embodiment, the top of the punch 2 is abutted against the bottom of the die 3, and a placement portion 5 is provided on the top of the punch 2. The placement portion 5 is used to place the aluminum plate. A cavity 6 is opened inside the die 3, and a mating portion 7 mating with the placement portion 5 is provided in the cavity 6. The upper part of the placement portion 5 is located in the cavity 6, and the bottom wall of the mating portion 7 and the top wall of the placement portion 5 are both set to be arc-shaped. The aluminum plate is placed on the placement portion 5, and the driving mechanism 4 drives the die 3 to move downward, squeezing the aluminum plate between the placement portion 5 and the mating portion 7, so that the aluminum plate forms a curved surface.

[0025] Preferably, the aluminum plate is an aluminum sheet with a high reflectivity of more than 97% and is easy to bend and shape under pressure.

[0026] In this embodiment, a plurality of first through holes 8 are provided on the mating portion 7, and the top and bottom ends of the plurality of first through holes 8 respectively penetrate the top wall and the bottom wall of the mating portion 7, and a plurality of glue injection through holes 9 are provided on the placement portion 5, and the positions of the plurality of glue injection through holes 9 correspond to the positions of the plurality of first through holes 8, one end of the plurality of glue injection through holes 9 penetrates the top wall of the placement portion 5, and the other end penetrates the bottom wall of the die 3, and the top ends of the side walls of the plurality of glue injection through holes 9 are butted against the bottom of the aluminum plate.

[0027] In this embodiment, a plurality of tool path grooves 10 are further provided on the placement portion 5, and the plurality of tool path grooves 10 are arranged in a one-to-one correspondence with the plurality of first through holes 8, and the plurality of tool path grooves 10 are all arranged in a ring shape, and the outer side walls of the plurality of glue-filling through holes 9 are respectively flush with the inner side walls of the plurality of first through holes 8, and the plurality of tool path grooves 10 are respectively arranged around the outer side walls of the plurality of glue-filling through holes 9.

[0028] Preferably, the shape of the plurality of first through holes 8 is set to the shape required by the curved aluminum plate 11 constituting the reflective cup.

[0029] Preferably, the punch fixing plate and the body 1 are provided with a plurality of holes, which respectively correspond to the positions of the plurality of glue injection holes 9. The external glue injection equipment injects glue into the glue injection holes through the holes on the body and the punch fixing plate to bond the aluminum plate to the placement portion.

[0030] In this embodiment, a cutting device is further provided on one side of the body 1. The cutting device is a cutting blade driven by a robotic arm. The robotic arm drives the cutting blade to move along the tool path groove 10 to cut the bent aluminum plate and cut the aluminum plate into multiple curved aluminum plates 11. Other types or structures of cutting devices such as laser cutting can also be used as long as the aluminum plate can be cut into multiple curved aluminum plates 11.

[0031] During the process of extruding the aluminum plate by the die 3 and the punch 2, since a plurality of first through holes 8 are provided on the die 3, protrusions corresponding to the plurality of first through holes 8 are formed on the aluminum plate, and then glue is injected between the aluminum plate and the placement portion 5 through the glue injection through hole 9 to adhere the protrusions to the side walls of the glue injection through hole 9, and then the die 3 is driven upward by the driving mechanism 4 to separate from the punch 2, and then the bent aluminum plate is cut into a plurality of curved aluminum plates 11 for making reflective cups along the tool path groove 10 by the cutting device, and a plurality of curved aluminum plates 11 can be processed at one time, with high processing efficiency.

[0032] Preferably, glue that can be debonded is used to glue between the aluminum plate and the placement portion 5 through the glue injection through hole 9. After the cutting is completed, the plurality of formed curved aluminum plates 11 can be removed from the placement portion 5 by debonding without causing damage to the punch 2.

[0033] When the present embodiment is in use, the aluminum plate is placed on the placement portion 5, and then the driving mechanism 4 is started to drive the die 3 to move downward, and the aluminum plate is squeezed between the placement portion 5 and the matching portion 7. After the die 3 and the punch 2 bend the aluminum plate into a curved surface, the aluminum plate is adhered to the placement portion 5 through a plurality of glue-filled through holes 9, and then the driving mechanism 4 is started to drive the die 3 to move upward to separate from the punch 2, and then the aluminum plate is cut into a plurality of curved aluminum plates 11 for making reflective cups along the tool path groove 10 by the cutting device. Since the plurality of curved aluminum plates 11 are adhered to the placement portion 5, the curved aluminum plates 11 suitable for making reflective cups will not move, and other parts of the aluminum plate will fall off during the cutting process. Therefore, after the cutting is completed, only the plurality of bonded curved aluminum plates 11 remain on the placement portion 5, and then the punch 2 is disassembled, and the plurality of curved aluminum plates 11 and the punch 2 can be separated by debonding, so that a plurality of curved aluminum plates 11 can be processed at one time, and the processing efficiency is high.

[0034] The utility model bends the aluminum plate into a suitable curved surface by the action of a convex die and a concave die, and then directly cuts the bent aluminum plate into a plurality of curved aluminum plates for making reflective cups by setting a tool path groove, and processes a plurality of curved aluminum plates at a time, with high bending efficiency.

[0035] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. An optical-grade curved surface bending device, comprising a body, characterized in that: The machine body is provided with a punch fixing plate, to which a punch is detachably connected, a die driven by a driving mechanism is provided on the top of the punch, the driving mechanism drives the die to move up and down, the top of the punch abuts against the bottom of the die, a placement portion is provided on the top of the punch, a cavity is provided inside the die, a mating portion mating with the placement portion is provided in the cavity, the upper portion of the placement portion is located in the cavity, an aluminum plate is placed between the placement portion and the mating portion, and the bottom wall of the mating portion and the top wall of the placement portion are both arranged in an arc shape.

2. The optical-grade curved surface bending device according to claim 1, characterized in that: The matching portion is provided with a plurality of first through holes, and the top ends and the bottom ends of the plurality of first through holes respectively penetrate the top wall and the bottom wall of the matching portion.

3. The optical-grade curved surface bending device according to claim 2, characterized in that: The placement portion is provided with a plurality of glue injection through holes, one end of the plurality of glue injection through holes penetrates through the top wall of the placement portion, and the other end penetrates through the bottom wall of the concave mold.

4. The optical-grade curved surface bending device according to claim 3, characterized in that: The placement portion is provided with a plurality of tool path grooves, the plurality of tool path grooves are arranged in one-to-one correspondence with the plurality of first through holes, and the plurality of tool path grooves are all arranged in a ring shape.

5. The optical-grade curved surface bending device according to claim 4, characterized in that: The positions of the plurality of glue-filling through holes correspond to the positions of the plurality of first through holes, and the top ends of the side walls of the plurality of glue-filling through holes abut against the bottom of the aluminum plate.

6. The optical-grade curved surface bending device according to claim 5, characterized in that: The outer side walls of the plurality of glue-filling through holes are respectively flush with the inner side walls of the plurality of first through holes, and the plurality of tool path grooves are respectively arranged around the outer side walls of the plurality of glue-filling through holes.

7. The optical-grade curved surface bending device according to any one of claims 1 to 6, characterized in that: The top wall of the matching portion is flush with the top wall of the female mold.

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