Mobile phone middle frame transfer printing supporting and positioning jig

Abstract

The invention discloses a mobile phone middle frame transfer printing supporting and positioning jig, and aims to provide a mobile phone middle frame transfer printing supporting and positioning jig which is simple in structure, can realize precise rotation of a mobile phone middle frame and realizes product adjustment and positioning through positioning mechanisms on two sides. The device comprises a bottom plate, an adjusting table assembly, a rotating jig, a positioning and supporting assembly and an adjusting assembly, the rotating jig comprises a rotating support, a rotating motor and a product jig, and the rotating motor is arranged on one side of the upper end of the rotating support; the product jig is arranged on the other side of the upper end of the rotating support and is in rotating fit with the movable end of the rotating motor, the rotating support is connected with the bottom plate through the adjusting table assembly, and the positioning supporting assembly and the adjusting assembly are matched with a mobile phone middle frame attaching face and a mobile phone middle frame positioning face on the product jig respectively. The invention is applied to the technical field of product jigs.

Description

Technical Field

[0001] The present invention is applied to the technical field of product jigs, and particularly relates to a pad printing support and positioning jig for a mobile phone middle frame. Background Art

[0002] The outer shell of an electronic product usually consists of a bottom shell, a middle frame, and a top cover. The middle frame is the main component integration carrier. In order to achieve the purpose of anti-drop and anti-scratch, currently, metal materials are mainly used to replace traditional plastics to produce middle frame products. Since the metal middle frame will cause certain interference to signals during use, surface treatments such as electroplating need to be carried out on the metal surface of the middle frame. Before the surface treatment, the antenna isolation strip of the mobile phone metal middle frame needs to be covered to ensure that the surface treatment such as electroplating will not affect the isolation strip and ensure the overall aesthetics. Currently, fixtures are used in one-to-one correspondence with products, and the fixtures are manually or automatically transported to the pad printer for pad printing. There are processing errors between multiple different fixtures. This method has a low changeover efficiency. Each mold can only be adapted to one middle frame product, and manual changeover operations are required. Moreover, the positioning process will affect the accuracy of the pattern pad-printed on the antenna isolation strip of the metal frame, and it is difficult to cooperate with automated equipment for loading and unloading, resulting in low production efficiency. If a pad printing support and positioning jig for a mobile phone middle frame with a simple structure, capable of precisely rotating the mobile phone middle frame, and realizing product adjustment and positioning through the positioning mechanisms on both sides can be designed, the above problems can be solved. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a pad printing support and positioning jig for a mobile phone middle frame with a simple structure, capable of precisely rotating the mobile phone middle frame, and realizing product adjustment and positioning through the positioning mechanisms on both sides.

[0004] The technical solution adopted by the present invention is as follows: The present invention includes a bottom plate, an adjustment table assembly, a rotating jig, a positioning and supporting assembly, and an adjusting assembly. The rotating jig includes a rotating bracket, a rotating motor, and a product jig. The rotating motor is arranged on one side of the upper end of the rotating bracket, and the product jig is arranged on the other side of the upper end of the rotating bracket and is rotationally matched with the movable end of the rotating motor. The rotating bracket is connected to the bottom plate through the adjustment table assembly. The positioning and supporting assembly and the adjusting assembly are respectively matched with the fitting surface and the positioning surface of the mobile phone middle frame on the product jig.

[0005] Further, the product fixture includes a fixture base plate, a middle frame fixing seat, and an inner frame positioning edge. The rotating surface of the fixture base plate is connected to the movable end of the rotating motor. A plurality of groups of the middle frame fixing seats are arranged on the fixed surface of the fixture base plate. Two groups of the inner frame positioning edges are respectively arranged on both sides of the fixture base plate and cooperate with the mobile phone middle frame on the middle frame fixing seat. Middle frame limiting blocks are arranged at both ends of the fixture base plate, and the two groups of middle frame limiting blocks are in limiting cooperation with both ends of the mobile phone middle frame.

[0006] Further, a positioning edge cylinder is arranged in the middle of the fixed surface of the fixture base plate. A plurality of movable ends on both sides of the positioning edge cylinder are respectively in cooperation with the two groups of inner frame positioning edges. A plurality of inner frame fixing blocks are arranged on the inner frame positioning edges. The positioning edge cylinder drives a plurality of inner frame positioning blocks on the two groups of inner frame positioning edges to cooperate with both sides of the inner frame of the mobile phone middle frame.

[0007] Further, the adjustment table assembly includes an X-axis adjustment module, a Y-axis adjustment module, and a Z-axis adjustment module. The Y-axis adjustment module is connected to the movable end of the X-axis adjustment module. The Z-axis adjustment module is connected to the Y-axis adjustment module. The rotating bracket is connected to the movable end of the Z-axis adjustment module.

[0008] Further, two groups of the positioning and supporting assemblies are respectively arranged on both sides of the bottom of the rotating bracket. The positioning and supporting assembly includes a positioning and supporting bracket, a side push cylinder, and a side push supporting block. The side push cylinder is arranged at the upper end of the positioning and supporting bracket. The side push supporting block is connected to the upper end of the positioning and supporting bracket through a supporting block slide rail. The movable end of the side push cylinder is connected to the side push supporting block. The two groups of side push supporting blocks are in cooperation with the fitting contact surfaces of the inner frame of the fitting surface of the mobile phone middle frame.

[0009] Further, the adjustment assembly includes an adjustment bracket, an adjustment table, a positioning cylinder, a positioning plate, a pressing cylinder, and a pressing plate. The adjustment bracket is arranged on the side of the rotating bracket close to the product fixture. The adjustment table is connected to the upper end of the adjustment bracket through a plurality of adjustment slide rails. The positioning plate is arranged at the upper end of the side of the adjustment table close to the product fixture. The positioning cylinder is arranged on the side of the adjustment bracket far from the product fixture and cooperates with the adjustment table. The pressing cylinder is arranged on the side of the adjustment table close to the product fixture and drives the pressing plate to cooperate with one side of the inner frame of the positioning surface of the mobile phone middle frame.

[0010] Further, a plurality of positioning support blocks and pressing adjustment blocks are respectively arranged on the positioning plate and the pressing plate. The plurality of positioning support blocks and the plurality of pressing adjustment blocks are respectively in cooperation with the positioning contact surfaces of the inner frame of the positioning surface of the mobile phone middle frame.

[0011] Further, a limit block is provided at the upper end of the adjustment bracket, and the limit block is in limit cooperation with the adjustment table.

[0012] Further, induction stoppers are provided on both sides of the fixture base plate, and an angle sensor is provided at the upper end of the rotating bracket. The two groups of induction stoppers are in induction cooperation with the angle sensor.

[0013] Further, a plurality of middle frame fixing seats are each provided with an adsorption port, and an adsorption module is provided on one side of the base plate. The plurality of adsorption ports are connected and communicated with the adsorption module, and the plurality of adsorption ports are in adsorption cooperation with the fitting surface of the mobile phone middle frame on the middle frame fixing seat.

[0014] The beneficial effects of the present invention are as follows: The core structure is that the fixture fixes the product, adopts a suction cup and an inner support structure to prevent scratching of the product, facilitates visual positioning of the outer wall of the product and pad printing coverage of the outer surface of the product antenna partition strip. The middle frame rotates 180 degrees through the motor, so as to achieve the effect of pad printing on both sides. The two contact surfaces of the middle frame are adjusted and positioned through the adaptive adjustment component, so that the pad printing positioning points are the same each time, without causing deviation, and multi-dimensional adjustment can be realized through the adjustment table component to adapt to different use scenarios. The structure is simple and the positioning effect is better. Description of the Drawings

[0015] Figure 1 is a three-dimensional view of the present invention; Figure 2 is a three-dimensional view of the adjustment table component; Figure 3 is a three-dimensional view of the positioning support component; Figure 4 is a three-dimensional view of the rotating fixture; Figure 5 is a three-dimensional view of the product fixture; Figure 6 is a three-dimensional view of the adjustment component; Figure 7 is a three-dimensional view of the mobile phone middle frame; Figure 8 is Figure 7 an enlarged view of A in Detailed Embodiments

[0016] As Figures 1 to 8As shown in the figure, in this embodiment, the present invention includes a bottom plate 1, an adjustment table assembly 2, a rotary fixture 3, a positioning and supporting assembly 4, and an adjustment assembly 5. The rotary fixture 3 includes a rotary bracket 31, a rotary motor 32, and a product fixture 33. The rotary motor 32 is disposed on one side of the upper end of the rotary bracket 31. The product fixture 33 is disposed on the other side of the upper end of the rotary bracket 31 and is rotationally engaged with the movable end of the rotary motor 32. The rotary bracket 31 is connected to the bottom plate 1 through the adjustment table assembly 2. The positioning and supporting assembly 4 and the adjustment assembly 5 are respectively engaged with the fitting surface and the positioning surface of the mobile phone middle frame 6 on the product fixture 33. Thus, the mobile phone middle frame 6 is stably clamped by the product fixture 33, and the mobile phone middle frame 6 is adjusted to the required positioning angle by the rotary motor 32. Since the mobile phone middle frame 6 has a certain sinking and floating under the action of gravity in the upright state, the adjustment assembly 5 presses the mobile phone middle frame 6 down by a certain distance and then cooperates with the positioning and supporting assembly 4 to achieve precise support and positioning of the two contact surfaces on both sides of the inner frame of the mobile phone middle frame 6. The structure is simple, and the positioning height is consistent after rotation, meeting the pad printing working conditions, and the positioning effect is better.

[0017] As Figure 4 and Figure 5 shown in the figure, in this embodiment, the product fixture 33 includes a fixture bottom plate 331, a middle frame fixing seat 332, and an inner frame positioning edge 333. The rotating surface of the fixture bottom plate 331 is connected to the movable end of the rotary motor 32. A plurality of groups of the middle frame fixing seats 332 are disposed on the fixed surface of the fixture bottom plate 331. Two groups of the inner frame positioning edges 333 are respectively disposed on both sides of the fixture bottom plate 331 and are engaged with the mobile phone middle frame 6 on the middle frame fixing seat 332. Middle frame limit blocks 334 are disposed at both ends of the fixture bottom plate 331. The two groups of middle frame limit blocks 334 are engaged with the two ends of the mobile phone middle frame 6 for limiting. Thus, the two groups of middle frame limit blocks 334 pre-position the mobile phone middle frame 6, facilitating subsequent pressing operations. The two groups of inner frame positioning edges 333 clamp or loosen the two sides of the inner frame of the mobile phone middle frame 6 by moving away from or towards each other, realizing the fixation of the mobile phone middle frame 6.

[0018] As Figure 5As shown in the figure, in this embodiment, a positioning edge cylinder 335 is provided in the middle of the fixed surface of the jig bottom plate 331. A number of movable ends on both sides of the positioning edge cylinder 335 are respectively matched with two groups of the inner frame positioning edges 333. A number of inner frame fixing blocks 336 are provided on the inner frame positioning edges 333. The positioning edge cylinder 335 drives a number of inner frame positioning blocks 336 on the two groups of inner frame positioning edges 333 to be matched with both sides of the inner frame of the mobile phone middle frame 6. It can be seen that the two sides of the positioning edge cylinder 335 respectively operate the two groups of inner frame positioning edges 333 to move away from or towards each other, and cooperate with a number of the inner frame positioning blocks 336 to externally support and press the inner frame of the mobile phone middle frame 6, which can effectively avoid scratching the visible part of the outer frame of the mobile phone middle frame 6 and improve the pad printing effect of the mobile phone middle frame 6.

[0019] As Figure 2 shown in the figure, in this embodiment, the adjustment table assembly 2 includes an X-axis adjustment module 21, a Y-axis adjustment module 22 and a Z-axis adjustment module 23. The Y-axis adjustment module 22 is connected to the movable end of the X-axis adjustment module 21. The Z-axis adjustment module 23 is connected to the Y-axis adjustment module 22. The rotating bracket 31 is connected to the movable end of the Z-axis adjustment module 23. It can be seen that the X-axis adjustment module 21, the Y-axis adjustment module 22 and the Z-axis adjustment module 23 respectively adjust the positioning in the X, Y and Z axis directions, and can be adapted to the settings of a variety of products or a variety of station environments, with stronger applicability.

[0020] As Figure 1 and Figure 3 shown in the figure, in this embodiment, two groups of the positioning and supporting components 4 are respectively arranged on both sides of the bottom of the rotating bracket 31. The positioning and supporting component 4 includes a positioning and supporting bracket 41, a side push cylinder 42 and a side push supporting block 43. The side push cylinder 42 is arranged at the upper end of the positioning and supporting bracket 41. The side push supporting block 43 is connected to the upper end of the positioning and supporting bracket 41 through a supporting block slide rail 44. The movable end of the side push cylinder 42 is connected to the side push supporting block 43. The two groups of side push supporting blocks 43 are matched with the fitting contact surfaces 7 of the inner frame of the fitting surface of the mobile phone middle frame 6. It can be seen that the two groups of side push cylinders 42 respectively drive the two groups of side push supporting blocks 43 to be attached and fixed to both ends of the fitting contact surfaces 7 of the inner frame of the fitting surface of the mobile phone middle frame 6, achieving the positioning effect on one side of the mobile phone middle frame 6.

[0021] As Figure 1 and Figure 6As shown in the figure, in this embodiment, the adjustment assembly 5 includes an adjustment bracket 51, an adjustment table 52, a positioning cylinder 53, a positioning plate 54, a pressing cylinder 55, and a pressing plate 56. The adjustment bracket 51 is arranged on the side of the rotating bracket 31 close to the product fixture 33. The adjustment table 52 is connected to the upper end of the adjustment bracket 51 through a plurality of adjustment slide rails 57. The positioning plate 54 is arranged at the upper end of the adjustment table 52 on the side close to the product fixture 33. The positioning cylinder 53 is arranged on the side of the adjustment bracket 51 away from the product fixture 33 and cooperates with the adjustment table 52. The pressing cylinder 55 is arranged on the side of the adjustment table 52 close to the product fixture 33 and drives the pressing plate 56 to cooperate with one side of the inner frame of the positioning surface of the mobile phone middle frame 6. Thus, it can be seen that the positioning cylinder 53 drives the positioning of the positioning plate 54 corresponding to one side of the inner frame of the mobile phone middle frame 6, and the pressing cylinder 55 drives the pressing plate 56 to press and adjust the corresponding side of the inner frame of the mobile phone middle frame 6 to realize the positioning of both sides of the inner frame of the mobile phone middle frame 6.

[0022] As Figure 6 shown in the figure, in this embodiment, the positioning plate 54 and the pressing plate 56 are respectively provided with a plurality of positioning support blocks 58 and pressing adjustment blocks 59. The plurality of positioning support blocks 58 and the plurality of pressing adjustment blocks 59 respectively cooperate with the positioning contact surfaces 9 of the inner frame of the positioning surface of the mobile phone middle frame 6. Thus, it can be seen that the plurality of positioning support blocks 58 and the plurality of pressing adjustment blocks 59 are respectively attached, pressed, and positioned with the positioning contact surfaces 9 corresponding to both sides of the inner frame of the mobile phone middle frame 6.

[0023] As Figure 6 shown in the figure, in this embodiment, a limit block 10 is arranged at the upper end of the adjustment bracket 51, and the limit block 10 is in limit cooperation with the adjustment table 52. Thus, it can be seen that the limit block 10 prevents the positioning plate 54 from overpressing the mobile phone middle frame 6 and causing scratches or deformation.

[0024] As Figure 5 shown in the figure, in this embodiment, induction blocking pieces 11 are arranged on both sides of the fixture bottom plate 331, and an angle sensor 12 is arranged at the upper end of the rotating bracket 31. The two groups of induction blocking pieces 11 are in induction cooperation with the angle sensor 12. Thus, it can be seen that the induction blocking pieces 11 and the angle sensor 12 can realize the precise rotation positioning of the mobile phone middle frame 6.

[0025] As Figure 5As shown in the figure, in this embodiment, a plurality of groups of the middle frame fixing seats 332 are each provided with an adsorption port 13. One side of the bottom plate 1 is provided with an adsorption module 14. A plurality of the adsorption ports 13 are connected and communicated with the adsorption module 14. A plurality of the adsorption ports 13 are in adsorption cooperation with the fitting surface of the mobile phone middle frame 6 on the middle frame fixing seat 332. Thus, by using the sucker and the inner support structure, scratching of the product is prevented.

[0026] Working principle of the present invention: When placing a new product, each component is in a reset state. A robot or a human uses it to place the mobile phone middle frame 6 with the fitting surface facing the product fixture side into the middle frame fixing seat 332. Precise positioning is achieved through two groups of the middle frame limit blocks 334. The movable ends on both sides of the positioning edge cylinder 335 extend to drive a plurality of the inner frame fixing blocks 336 on two groups of the inner frame positioning edges 333 to move in opposite directions to press both sides of the inner frame of the mobile phone middle frame 6, and trigger a plurality of the adsorption ports 13 to adsorb the fitting surface of the mobile phone middle frame 6. The movable ends of two groups of the side push cylinders 42 and the positioning cylinder 53 extend to make two groups of the side push support blocks 43 and the positioning plate 54 extend in place. There is a distance of about 0.5 mm between two groups of the side push support blocks 43 and the positioning support block 58 and the fitting support surface 7 and the positioning contact surface 9 on the mobile phone middle frame 6. The pressing cylinder 55 extends, and the pressing adjustment block 59 presses the mobile phone middle frame 6 downward so that the fitting support surface 7 and the positioning contact surface 9 are respectively pressed against the side push support blocks 43 and the positioning support block 58, completing the Z - direction positioning of the mobile phone middle frame 6.

[0027] After the two antenna partition strips on one side of the mobile phone middle frame 6 are completed with pad printing coverage, the positioning support assembly 4 and the adjustment assembly 5 are reset. The rotating motor 32 drives the entire product fixture 33 to rotate 180°. After identifying that the rotation is in place through the sensor, the above steps are repeated to complete the Z - direction positioning of the other state of the mobile phone middle frame 6, and the pad printing coverage operation is performed again. After the pad printing coverage on both sides is completed, each component is reset. The product fixture 33 releases the clamping of the mobile phone middle frame 6, and a plurality of the adsorption ports 13 cancel the adsorption state. Replace the mobile phone middle frame 6 to be pad - printed, and repeat the above steps to achieve the bilateral rotation support positioning of the mobile phone middle frame.

[0028] Although the embodiments of the present invention are described with actual solutions, they do not constitute a limitation to the meaning of the present invention. For those skilled in the art, modifications to its implementation solutions according to this specification and combinations with other solutions are obvious.

Claims

1. A pad printing support and positioning jig for a mobile phone middle frame, comprising a bottom plate (1), an adjustment table assembly (2), a rotating jig (3), a positioning support assembly (4), and an adjustment assembly (5), characterized in that: The rotary jig (3) includes a rotary bracket (31), a rotary motor (32), and a product jig (33). The rotary motor (32) is arranged on one side of the upper end of the rotary bracket (31). The product jig (33) is arranged on the other side of the upper end of the rotary bracket (31) and is rotationally matched with the movable end of the rotary motor (32). The rotary bracket (31) is connected to the bottom plate (1) through the adjustment table assembly (2). The positioning and supporting assembly (4) and the adjusting assembly (5) are respectively matched with the fitting surface and the positioning surface of the mobile phone middle frame (6) on the product jig (33).

2. The pad printing support positioning fixture for the middle frame of a mobile phone according to claim 1, wherein: The product jig (33) includes a jig bottom plate (331), a middle frame fixing seat (332), and an inner frame positioning edge (333). The rotating surface of the jig bottom plate (331) is connected to the movable end of the rotary motor (32). A plurality of groups of the middle frame fixing seats (332) are arranged on the fixed surface of the jig bottom plate (331). Two groups of the inner frame positioning edges (333) are respectively arranged on both sides of the jig bottom plate (331) and are matched with the mobile phone middle frame (6) on the middle frame fixing seat (332). Middle frame limit blocks (334) are arranged at both ends of the jig bottom plate (331). The two groups of middle frame limit blocks (334) are in limit cooperation with both ends of the mobile phone middle frame (6).

3. A pad printing support and positioning fixture for a mobile phone middle frame according to claim 2, characterized in that: A positioning edge cylinder (335) is arranged in the middle of the fixed surface of the jig bottom plate (331). A plurality of movable ends on both sides of the positioning edge cylinder (335) are respectively matched with the two groups of inner frame positioning edges (333). A plurality of inner frame fixing blocks (336) are arranged on the inner frame positioning edges (333). The positioning edge cylinder (335) drives a plurality of inner frame positioning blocks (336) on the two groups of inner frame positioning edges (333) to be matched with both sides of the inner frame of the mobile phone middle frame (6).

4. A pad printing support and positioning fixture for a mobile phone middle frame according to claim 1, characterized in that: The adjustment table assembly (2) includes an X-axis adjustment module (21), a Y-axis adjustment module (22), and a Z-axis adjustment module (23). The Y-axis adjustment module (22) is connected to the movable end of the X-axis adjustment module (21). The Z-axis adjustment module (23) is connected to the Y-axis adjustment module (22). The rotary bracket (31) is connected to the movable end of the Z-axis adjustment module (23).

5. A pad printing support positioning fixture for a mobile phone middle frame according to claim 1, characterized in that: Two groups of the positioning and supporting assemblies (4) are respectively arranged on both sides of the bottom of the rotary bracket (31). The positioning and supporting assembly (4) includes a positioning and supporting bracket (41), a side push cylinder (42), and a side push supporting block (43). The side push cylinder (42) is arranged at the upper end of the positioning and supporting bracket (41). The side push supporting block (43) is connected to the upper end of the positioning and supporting bracket (41) through a supporting block slide rail (44). The movable end of the side push cylinder (42) is connected to the side push supporting block (43). The two groups of side push supporting blocks (43) are matched with the fitting contact surface (7) of the inner frame of the fitting surface of the mobile phone middle frame (6).

6. The pad printing support positioning fixture for the middle frame of a mobile phone according to claim 1, characterized in that: The adjustment assembly (5) includes an adjustment bracket (51), an adjustment table (52), a positioning cylinder (53), a positioning plate (54), a downward pressing cylinder (55), and a downward pressing plate (56). The adjustment bracket (51) is arranged on one side of the rotating bracket (31) close to the product fixture (33). The adjustment table (52) is connected to the upper end of the adjustment bracket (51) through a plurality of adjustment slide rails (57). The positioning plate (54) is arranged at the upper end of the adjustment table (52) on one side close to the product fixture (33). The positioning cylinder (53) is arranged on one side of the adjustment bracket (51) away from the product fixture (33) and is matched with the adjustment table (52). The downward pressing cylinder (55) is arranged on one side of the adjustment table (52) close to the product fixture (33) and drives the downward pressing plate (56) to be matched with one side of the inner frame of the positioning surface of the mobile phone middle frame (6).

7. A pad printing support positioning fixture for a mobile phone middle frame according to claim 6, characterized in that: A plurality of positioning support blocks (58) and downward pressing adjustment blocks (59) are respectively arranged on the positioning plate (54) and the downward pressing plate (56). The plurality of positioning support blocks (58) and the plurality of downward pressing adjustment blocks (59) are respectively matched with the positioning contact surfaces (9) of the inner frame of the positioning surface of the mobile phone middle frame (6).

8. A pad printing support and positioning fixture for a mobile phone middle frame according to claim 6, characterized in that: A limit block (10) is arranged at the upper end of the adjustment bracket (51), and the limit block (10) is in limit cooperation with the adjustment table (52).

9. The pad printing support positioning fixture for the middle frame of a mobile phone according to claim 2, characterized in that: Inductive flappers (11) are arranged on both sides of the fixture bottom plate (331), and an angle sensor (12) is arranged at the upper end of the rotating bracket (31). The two groups of inductive flappers (11) are in inductive cooperation with the angle sensor (12).

10. A pad printing support and positioning fixture for a mobile phone middle frame according to claim 2, characterized in that: A plurality of adsorption ports (13) are arranged on each of the middle frame fixing seats (332). An adsorption module (14) is arranged on one side of the bottom plate (1). The plurality of adsorption ports (13) are connected and communicated with the adsorption module (14), and the plurality of adsorption ports (13) are in adsorption cooperation with the attaching surface of the mobile phone middle frame (6) on the middle frame fixing seat (332).

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