Negative angle forming device of 3C shell product

Abstract

The utility model discloses a negative angle forming device of a 3C shell product. The negative angle forming device comprises a plurality of forming machines, each forming machine comprises a lower male die and an upper female die which are matched with each other, the lower male dies and the upper female dies are of an inclined die structure, intermediate products are sequentially placed on the lower male dies, the upper female dies corresponding to the lower male dies move downwards to machine the characteristic faces of the intermediate products, and the characteristic faces of the intermediate products are machined. And enabling the characteristic surface of the intermediate product to gradually and slowly change the angle, gradually reducing the characteristic included angle alpha-beta value of the intermediate product from the positive angle until the characteristic included angle alpha-beta value becomes the preset negative angle, and forming the 3C shell product with the negative angle characteristic. The utility model has the effects that the product does not generate material stacking, the phenomenon of wrinkling is avoided, the product and the mould are convenient to demould, and the yield is high.

Description

Technical Field

[0001] The utility model relates to the field of 3C product processing, in particular to a negative angle forming device for 3C shell products. Background Art

[0002] Currently, 3C products are widely used in social life and industrial production, such as TV, monitor, computer, mouse, mobile phone and other 3C products, and 3C parts often involve various special-shaped feature processing, such as negative angle plane processing. The current processing plan is: after fixing the 3C parts, use the side push mold to directly process the negative angle. The problems are: first, the negative angle position and the corner wrap angle will cause material stacking and wrinkling; second, after the negative angle structure product is realized, the product and the mold cannot be demolded. Utility Model Content

[0003] In order to solve one or more of the above problems, the utility model provides a negative angle molding device for 3C shell products.

[0004] The utility model provides a negative angle forming device for 3C shell products, comprising: a plurality of forming machines, each forming machine comprising a lower male mold and an upper female mold of a slope mold structure that cooperate with each other, the angle between the characteristic surface of the lower male mold and the vertical base surface is a forming angle α, and the inclination angle between its positioning base surface and the horizontal base surface is a positioning angle β, the lower base surface of the product is parallel to the positioning base surface, and after the processed product is straightened, the angle between the characteristic surface of the product and the vertical base surface is a characteristic angle α-β;

[0005] Compared with the molding machine in the previous process, the positioning angle β value of the molding machine in the subsequent process gradually increases and the molding angle α value gradually decreases, and the characteristic angle α-β value of the intermediate product gradually decreases;

[0006] The intermediate product is placed on each lower male mold in turn, and the corresponding upper female mold is moved downward to process the characteristic surface of the intermediate product, so that the characteristic surface of the intermediate product gradually changes its angle slowly, and the characteristic angle α-β value of the intermediate product gradually decreases from a positive angle until it becomes a preset negative angle, forming a 3C shell product with a negative angle feature.

[0007] In some embodiments, the convex molding surface of each lower male mold fits the inner contour of a preset intermediate product or molded product, and the concave molding surface of each upper female mold opposite thereto fits the outer contour of a preset intermediate product or molded product.

[0008] In some embodiments, the lower male mold is detachably mounted on the lower fixed seat of the molding machine, and the upper female mold is detachably mounted under the upper vertical seat of the molding machine; the upper female mold and the edge of the lower fixed seat are connected in the middle by a guide assembly.

[0009] In some embodiments, the guide assembly is a guide column, and a sliding groove that matches the guide column is provided on the upper mother mold.

[0010] In some embodiments, the upper end of the upper vertical seat is connected to the driving device, and the lower end of the lower fixed seat is fixed on the base; the lower end of the base is also equipped with a plurality of spring buffer components passing through the through holes of the lower fixed seat.

[0011] In some embodiments, a plurality of positioning pins are disposed on the upper surface of the lower fixed seat, and the upper vertical seat or the upper mother mold is provided with positioning holes corresponding to the positioning pins.

[0012] In some embodiments, a plurality of molding machines are arranged transversely in sequence, and a material transfer unit is provided between adjacent molding machines; the material transfer unit places or removes products on the lower male mold of the molding machine and moves products between the molding machines.

[0013] In some embodiments, the material moving unit is any one of a robot, an XYZ three-axis moving machine, and manual labor.

[0014] In some embodiments, there are two molding machines, and the intermediate product processed by the first molding machine has a characteristic angle of 0°, and the intermediate product processed by the second molding machine has a characteristic angle of a small negative angle.

[0015] The negative angle forming device of the 3C shell product adopts the lower male mold and the upper female mold of the inclined mold. The mold inclination and the product angle are corrected to each other and formed directly by pressing. The negative angle required by the product is further adjusted by the number of molding machines, that is, multiple molding. The beneficial effects are: first, the product will not produce material stacking and wrinkle phenomenon; second, after the negative angle structure product is realized, the product and the mold are easy to demold; third, multiple processing can effectively reduce the structural stress of each pressing, the product is softly deformed, and the yield rate is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view schematic diagram of a negative angle forming device for a 3C shell product according to one embodiment of the utility model;

[0017] Figure 2 for Figure 1 Schematic cross-sectional view of the lower male mold and the upper female mold of the two molding machines shown;

[0018] Figure 3 for Figure 1 The three-dimensional schematic diagram of the 3C shell product after the negative angle processing is corrected;

[0019] Figure 4 for Figure 1 A three-dimensional schematic diagram of the molding machine shown;

[0020] Figure 5 for Figure 4A three-dimensional schematic diagram of the lower male mold shown;

[0021] Figure 6 for Figure 4 A three-dimensional schematic diagram of the upper mother mold rotated 180°;

[0022] Molding machine 01, lower male mold 1, upper female mold 2, upper vertical seat 3, lower fixed seat 4, guide assembly 5, base 6, spring buffer assembly 7;

[0023] Material transfer unit 02. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0025] Figures 1 to 6 The negative angle forming device of a 3C shell product according to an embodiment of the utility model is schematically shown. As shown in the figure, the negative angle forming device of the 3C shell product comprises: a plurality of forming machines 01, each forming machine 01 comprises a lower male mold 1 and an upper female mold 2 of a slope mold structure that cooperate with each other, preferably, from front to back of each forming machine 01, the convex forming surface of each lower male mold 1 fits the inner contour of the preset intermediate product and the formed product, and the concave forming surface of each upper female mold 2 opposite to it fits the outer contour of the preset intermediate product and the formed product.

[0026] The angle between the characteristic surface of the lower male mold 1 and the vertical base surface is the forming angle α, and the inclination angle between the positioning base surface and the horizontal base surface is the positioning angle β. The lower base surface of the product is parallel to the positioning base surface. After the processed product is straightened, the angle between the characteristic surface of the product and the vertical base surface is the characteristic angle α-β.

[0027] Compared with the former forming machine 01, the positioning angle β value of the latter forming machine 01 gradually increases and the forming angle α value gradually decreases, and the characteristic angle α-β value of the intermediate product gradually decreases;

[0028] The intermediate product is placed on each lower male mold 1 in turn, and the corresponding upper female mold 2 moves downward to process the characteristic surface of the intermediate product, so that the characteristic surface of the intermediate product gradually changes its angle slowly, and the characteristic angle α-β value of the intermediate product gradually decreases from a positive angle until it becomes a preset negative angle, forming a 3C shell product with a negative angle feature.

[0029] The negative angle forming device of the 3C shell product adopts the lower male mold 1 and the upper female mold 2 of the inclined mold. The mold inclination and the product angle are corrected to each other and formed directly by pressing. The negative angle required by the product is further adjusted, and the number of molding machines 01 is set, that is, multiple molding, which has the beneficial effects: first, the product will not produce material stacking and wrinkle phenomenon; second, after the negative angle structure product is realized, the product and the mold are easy to demold; third, multiple processing can effectively reduce the structural stress of each pressing, the product is softly deformed, and the yield rate is high.

[0030] Further, the molding machine 01 includes an upper vertical seat 3 and a lower fixed seat 4. The lower male mold 1 is detachably mounted on the lower fixed seat 4, and the upper female mold 2 is detachably mounted under the upper vertical seat 3. The upper vertical seat 3 drives the upper female mold 2 to move vertically downward; the four corners or edges of the upper female mold 2 or the upper vertical seat 3 and the lower fixed seat 4 are connected by a guide assembly 5. Its beneficial effects are: the detachable structure is convenient for replacing molds, using various production processes and processing a variety of products.

[0031] A preferred form of the guide component 5 is as follows: the guide component 5 is a guide column, and a sliding groove matching the guide column is provided on the upper mother mold 2 .

[0032] Another preferred form of the guide assembly 5: the guide assembly 5 is an optical axis and a linear bearing sleeved with each other; the linear bearing is fixed in the upper vertical seat 3, the lower end of the optical axis is fixed in the lower fixed seat 4 and the upper end is sleeved in the linear bearing. The beneficial effect is that the above two guide assemblies 5 have simple structures and high guiding accuracy, can ensure the accuracy of the upper and lower forming movements, and improve the processing accuracy.

[0033] Furthermore, the upper end of the upper vertical seat 3 is connected to a driving device, preferably, the driving device is any one of a vertical lifting cylinder, a servo electric cylinder, and a hydraulic cylinder; the beneficial effect is that the above-mentioned driving device can output high-precision vertical motion.

[0034] The lower end of the lower fixing seat 4 is fixed on the base 6;

[0035] Preferably, a plurality of spring buffer components 7 are also installed at the lower end of the base 6. The elastic lifting block of the spring buffer component 7 passes through the through hole of the lower fixed seat 4. The upper vertical seat 3 moves downward to contact the elastic lifting block to make it move downward slowly. The beneficial effect is that the spring buffer component 7 can reduce sudden stress, realize flexible and slow processing deformation, and improve product precision.

[0036] Furthermore, a plurality of positioning pins are provided on the upper surface of the lower fixed seat 4, and positioning holes corresponding to the positioning pins are provided on the upper vertical seat 3 or the upper mother mold 2. The beneficial effect is that the positioning pins improve the positioning accuracy, thereby improving the processing accuracy.

[0037] Furthermore, a plurality of molding machines 01 are arranged horizontally in sequence, and a material transfer unit 02 is provided between adjacent molding machines 01;

[0038] The material transfer unit 02 places or removes products on the lower male mold 1 of the molding machine 01 and moves products between the molding machines 01;

[0039] Preferably, the material transfer unit 02 is any one of a manipulator, an XYZ three-axis moving machine and a manual operation. The beneficial effect is that the material transfer unit 02 can be used to continuously and automatically mass-produce products and improve production speed.

[0040] A preferred form of the XYZ three-axis moving machine is: it includes an X-axis linear module, a Y-axis linear module, and a Z-axis linear module connected to each other, and a pneumatic suction component is installed at the action end of the Z-axis linear module.

[0041] Preferably, there are two molding machines 01, the intermediate product processed by the first molding machine 01 has a characteristic angle of 0°, and the intermediate product processed by the second molding machine 01 has a characteristic angle of a small negative angle.

[0042] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. 3C negative angle forming device for shell products, It is characterized in that include: A plurality of molding machines (01), each of the molding machines (01) comprising a lower male mold (1) and an upper female mold (2) of a slope mold structure that cooperate with each other, the angle between the characteristic surface of the lower male mold (1) and the vertical base surface is a molding angle α, and the inclination angle between its positioning base surface and the horizontal base surface is a positioning angle β, the lower base surface of the product is parallel to the positioning base surface, and after the processed product is straightened, the angle between the characteristic surface of the product and the vertical base surface is a characteristic angle α-β; Compared with the molding machine (01) of the previous process, the positioning angle β value of the molding machine (01) of the subsequent process gradually increases and the molding angle α value gradually decreases, and the characteristic angle α-β value of the intermediate product gradually decreases; The intermediate product is placed on each of the lower male molds (1) in turn, and the corresponding upper female mold (2) moves downward to process the characteristic surface of the intermediate product, so that the characteristic surface of the intermediate product gradually changes its angle slowly, and the characteristic angle α-β value of the intermediate product gradually decreases from a positive angle until it becomes a preset negative angle, forming a 3C shell product with a negative angle feature.

2. The negative angle forming device for 3C shell products according to claim 1, It is characterized in that The convex molding surface of each lower male mold (1) fits with the preset inner contour of the intermediate product or the molded product, and the concave molding surface of each upper female mold (2) opposite thereto fits with the preset outer contour of the intermediate product or the molded product.

3. The negative angle forming device for 3C shell products according to claim 2, It is characterized in that The lower male mold (1) is detachably mounted on the lower fixed seat (4) of the molding machine (01), and the upper female mold (2) is detachably mounted under the upper vertical seat (3) of the molding machine (01); the upper female mold (2) and the lower fixed seat (4) are connected in the middle of their edges via a guide assembly (5).

4. The negative angle forming device for 3C shell products according to claim 3, It is characterized in that The guide assembly (5) is a guide column, and a sliding groove matching the guide column is provided on the upper mother mold (2).

5. The negative angle forming device for 3C shell products according to claim 3, It is characterized in that The upper end of the upper vertical seat (3) is connected to a driving device, and the lower end of the lower fixed seat (4) is fixed on a base (6); the lower end of the base (6) is also provided with a plurality of spring buffer components (7) passing through the through holes of the lower fixed seat (4).

6. The negative angle forming device for 3C shell products according to claim 5, It is characterized in that The upper surface of the lower fixed seat (4) is provided with a plurality of positioning pins, and the upper vertical seat (3) or the upper mother mold (2) is provided with positioning holes corresponding to the positioning pins.

7. The negative angle forming device for 3C shell products according to any one of claims 1 to 5, It is characterized in that A plurality of the molding machines (01) are arranged horizontally in sequence, and a material transfer unit (02) is provided between adjacent molding machines (01); the material transfer unit (02) places or removes products on the lower male mold (1) of the molding machine (01) and moves products between the molding machines (01).

8. The negative angle forming device for 3C shell products according to claim 7, It is characterized in that The material transfer unit (02) is any one of a robot, an XYZ three-axis moving machine and manual labor.

9. The negative angle forming device for 3C shell products according to claim 1, It is characterized in that There are two molding machines (01), and the intermediate product processed by the first molding machine (01) has a characteristic angle of 0°, while the intermediate product processed by the second molding machine (01) has a characteristic angle of a small negative angle.

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