Middle frame C-angle step edge pressing device

Abstract

The utility model discloses a middle frame C-angle step edge pressing device, and belongs to the technical field of electronic equipment machining. A middle frame C-angle step edge pressing device comprises a base plate, a pressing plate, a pressing plate and a pressing plate, the mounting table is arranged on the base plate, a jig head is arranged on the mounting table, and the working end of the jig head is used for being attached to the side edge of the middle frame; the lower die is arranged above the ball assembly, the upper die is matched with the lower die, the upper die and the lower die are used for clamping the middle frame, and the upper die and the lower die move on a plane above the ball assembly; according to the automatic edge pressing device, automatic edge pressing operation on the C-angle step of the middle frame can be achieved, it is guaranteed that the surface of a mobile phone metal middle frame spraying part is smooth, the overall quality is improved, automation can be achieved through the whole device, manpower is replaced by a machine, efficiency and productivity are greatly improved, and quality stability is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic equipment processing, in particular to a middle frame C-angle step edge pressing device. Background Art

[0002] As the public pursues the texture, appearance and performance of 3C (Computer, Communication, Consumer Electronics) electronic appearance parts, the materials of various appearance parts have been continuously innovated from plastic to metal in recent years.

[0003] Currently, smartphone devices, especially high-end smartphones, mostly use metal middle frames and back covers to meet consumers' demand for metal texture. However, in actual manufacturing, the metal structure of the mobile phone middle frame spray parts is prone to have a step structure protruding from the surface at the edge pressing position, that is, a step with a C-angle structure, which reduces the overall quality of the middle frame surface. For this reason, we propose a middle frame C-angle step edge pressing device. Utility Model Content

[0004] The utility model aims to solve the problem of protruding structures appearing at the edge pressing positions of metal middle frame spraying parts in the prior art, and proposes a middle frame C-angle step edge pressing device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A middle frame C-angle step edge pressing device comprises: a base plate, on which a ball assembly is arranged; a mounting table arranged on the base plate, on which a fixture head is arranged, and the working end of the fixture head is used to fit with the side of the middle frame; a lower mold arranged above the ball assembly and an upper mold cooperating with the lower mold, the upper mold and the lower mold are used to clamp the middle frame, and the upper mold and the lower mold move in the plane above the ball assembly.

[0007] In order to reduce the resistance when the lower mold plate moves, preferably, the ball assembly includes positioning columns equidistantly arranged on the top surface of the substrate, the top surface of the positioning columns is provided with ball grooves, rolling bodies are arranged in the ball grooves, and the rolling bodies are in contact with the bottom surface of the lower mold.

[0008] In order to improve the smoothness of the edge pressing process, preferably, an oil groove is opened on the side of the jig head, and a "V"-shaped incision is formed on the working surface end of the jig head.

[0009] In order to improve the degree of refinement of edge pressing, the mounting table further includes: a first mounting block fixedly connected to the base plate, a mounting groove being provided on the first mounting block, wherein a guide column is provided in the mounting groove, a spring is sleeved on the guide column, and the two ends of the spring are respectively abutted against the end wall of the mounting groove and the non-working surface of the jig head; a second mounting block fixedly connected to the first mounting block, the jig head is slidably connected to the second mounting block, wherein a limiting groove is provided on the second mounting block, one end of the jig head is fixedly connected to a limiting plate, and the limiting plate is provided in the limiting groove.

[0010] In order to improve the edge pressing efficiency, further, the jig heads are provided in multiple groups, and the multiple groups of jig heads are arranged closely on the second mounting block.

[0011] Preferably, an elastic positioning pad is provided on the lower mold.

[0012] In order to facilitate the fixation of the middle frame, preferably, it also includes a first positioning shell, to which a coordination rod is fixedly connected, and a second positioning shell, the coordination rod passes through the second positioning shell, and the second positioning shell is arranged on an elastic positioning pad.

[0013] Preferably, the upper mold comprises an upper template and a driving plate fixedly connected to the upper template, and a mechanical arm for driving the upper template to move in the XY axis direction is arranged on the top of the driving plate.

[0014] Furthermore, a positioning pin is fixedly connected to the bottom of the driving plate, a jig plug is fixedly connected to the first positioning shell, the jig plug passes through the upper template and extends to the top, and the positioning pin is inserted into the jig plug.

[0015] In order to ensure the stability of the edge pressing process, further, a guide rod is installed on the top of the upper template, and an elastic fixing block is installed on the guide rod. Two groups of symmetrically arranged elastic fixing blocks are pressed against the opposite surfaces of the fixture plug respectively.

[0016] Preferably, a partition is also included, which is arranged between the multiple groups of middle frames.

[0017] Preferably, a limit bar is installed at the edge of the substrate to limit the XY axis direction of the lower mold.

[0018] Compared with the prior art, the utility model provides a middle frame C-angle step edge pressing device, which has the following beneficial effects:

[0019] 1. The C-angle step edge pressing device of the middle frame contacts the bottom surface of the lower mold through the rolling body. On the one hand, it limits the Z-axis direction of the lower mold, and on the other hand, it can prevent the lower mold from directly contacting the substrate over a large area, thereby reducing the friction resistance during the movement of the lower mold;

[0020] 2. The C-angle step edge pressing device of the middle frame can use the spring to make a small adjustment space according to the position of the contacted product to ensure that the contact distance between each product and the jig head is basically the same, thereby further improving the stability and consistency of the edge pressing quality;

[0021] 3. The C-angle step edge pressing device of the middle frame supplies oil to the contact position between the cutout and the middle frame through the oil groove to reduce dry friction, prevent scratches on the middle frame, and ensure the quality stability of the middle frame after edge pressing.

[0022] The parts not involved in the device are the same as the existing technology or can be implemented by existing technology. The utility model can realize the automated edge pressing operation of the C-angle step of the middle frame to ensure the smooth surface of the metal middle frame sprayed parts of the mobile phone and improve the overall quality. The entire device can be automated, replacing manpower with machines, greatly improving efficiency and production capacity and ensuring quality stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a front view of a middle frame C-angle step edge pressing device proposed by the utility model;

[0024] Figure 2 This is a left view of a middle frame C-angle step edge pressing device proposed by the utility model;

[0025] Figure 3 A three-dimensional diagram of a middle frame C-angle step edge pressing device proposed by the utility model;

[0026] Figure 4 A middle frame C-angle step edge pressing device proposed by the utility model Figure 3 The structural diagram of part A in the figure;

[0027] Figure 5 This is a partial structural schematic diagram of a middle frame C-angle step edge pressing device proposed by the utility model;

[0028] Figure 6 It is a structural schematic diagram of a mounting platform for a middle frame C-angle step edge pressing device proposed by the utility model.

[0029] In the figure: 1. substrate; 101. limit strip; 2. positioning column; 201. rolling body; 3. first mounting block; 301. mounting groove; 4. second mounting block; 401. limit groove; 5. fixture head; 501. cutout; 502. oil groove; 503. guide column; 504. spring; 6. drive plate; 601. positioning pin; 7. upper template; 701. guide rod; 702. fixing block; 8. first positioning shell; 801. fixture plug; 802. cooperative rod; 803. second positioning shell; 9. lower mold; 10. elastic positioning pad; 11. partition. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0031] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are 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, and therefore should not be understood as a limitation on the present invention.

[0032] Example:

[0033] Reference Figure 1-Figure 6 A middle frame C-angle step edge pressing device comprises: a substrate 1, on which 100-150 ball assemblies are arranged, which can realize the Z-axis direction limit of the object thereon; a mounting table installed on the substrate 1, on which a fixture head 5 is arranged, and the side of the middle frame is fitted with the working end of the fixture head 5, so as to press and smooth the step structure of the protruding surface on the middle frame, that is, the step with a C-angle structure; a lower mold 9 and an upper mold matched with the lower mold 9 are placed above the ball assembly, and the upper and lower molds can be combined to form a whole to fix the middle frame placed between the upper and lower molds 3, and keep the fixed middle frame fit with the working end of the fixture head 5 to realize subsequent edge pressing operations, and the upper mold and the lower mold 9 realize XY axis movement above the ball assembly, that is, plane displacement, and this form of movement can be completed by a robotic arm.

[0034] Through the above scheme, we can realize the automated edge pressing operation of the C-angle step of the middle frame to ensure the smooth surface of the metal middle frame sprayed parts of the mobile phone and improve the overall quality. The entire device can be automated, replacing manpower with machines, greatly improving efficiency and production capacity, and ensuring quality stability. Of course, this device can not only be used for mobile phone middle frames, but also some electronic devices with middle frame structures such as iPads and monitors can use this method to realize the edge pressing operation of the C-angle step on the sprayed parts.

[0035] The specific ball assembly includes positioning columns 2 arranged equidistantly on the top surface of the substrate 1. A ball groove is provided on the top surface of the positioning column 2. A rolling body 201, that is, a metal sphere, is arranged in the ball groove. The rolling body 201 contacts the bottom surface of the lower mold 9. On the one hand, it limits the Z-axis direction of the lower mold 9. On the other hand, it can prevent the lower mold 9 from directly contacting a large area of ​​the substrate 1, thereby reducing the friction resistance during the movement of the lower mold 9.

[0036] The specific mounting platform includes: a first mounting block 3 fixedly connected to the substrate 1, the first mounting block 3 is provided with a mounting groove 301, wherein a guide column 503 is provided in the mounting groove 301, and a spring 504 is sleeved on the guide column 503, and the two ends of the spring 504 are respectively against the end wall of the mounting groove 301 and the non-working surface of the jig head 5, and the non-working surface here is the end of the jig head 5 away from the incision 501; a second mounting block 4 is fixedly connected to the first mounting block 3, and the jig head 5 is slidably connected to the second mounting block 4, specifically, a limiting groove 401 is provided on the second mounting block 4, one end of the jig head 5 is fixedly connected to the limiting plate, and the limiting plate is arranged in the limiting groove 401, and the jig head 5 can use the spring 504 to make a small adjustment space according to the position of the contacted product to ensure that the contact distance between each product and the jig head 5 is basically the same, thereby further improving the stability and consistency of the edge pressing quality.

[0037] There are multiple groups of jig heads 5, and the multiple groups of jig heads 5 are tightly arranged on the second mounting block 4. An oil groove 502 is opened on the side of the jig head 5, and a "V"-shaped incision 501 is formed on the working surface end of the jig head 5. Oil is supplied to the contact position between the incision 501 and the middle frame through the oil groove 502 to reduce dry friction, prevent scratches on the middle frame, and ensure the quality stability of the middle frame after edge pressing.

[0038] As a further refined design, an elastic positioning pad 10 is provided on the lower mold 9, which is preferably made of silicone or rubber material, and has a certain buffering and supporting effect on the multiple groups of middle frames to be processed, so as to overcome the gap in assembly and reduce the cumulative tolerance size of the product height. It can also be further adjusted to ensure that each middle frame can better correspond to the incision 501 to achieve refined edge pressing operations.

[0039] For effective fixation of the middle frame, a first positioning shell 8 is added, on which a cooperative rod 802 and a second positioning shell 803 are fixedly connected, and the cooperative rod 802 runs through the second positioning shell 803 to form the first positioning shell 8 and the second positioning shell 803 into a whole, and the second positioning shell 803 is arranged on the elastic positioning pad 10. Through the special shape design of the first positioning shell 8 and the second positioning shell 803, the shape of the middle frame can be better fitted to support and fix, and the stability of the edge pressing quality of the middle frame can be further improved while preventing the middle frame from being deformed during edge pressing.

[0040] In addition, the upper mold includes an upper template 7 and a driving plate 6 fixedly connected to the upper template 7. A mechanical arm is provided on the top of the driving plate 6 for driving the upper template 7 to move in the XY axis direction to realize the automated operation of the center frame processing.

[0041] A positioning pin 601 is fixedly connected to the bottom of the driving plate 6, and a fixture plug 801 is fixedly connected to the first positioning shell 8. The fixture plug 801 passes through the upper template 7 and extends to the top, and the positioning pin 601 is inserted into the fixture plug 801 to ensure stability during edge pressing of the centering frame.

[0042] A guide rod 701 is installed on the top of the upper template 7 , and an elastic fixing block 702 is installed on the guide rod 701 . Two groups of symmetrically arranged elastic fixing blocks 702 are respectively pressed against the opposite surfaces of the fixture plug 801 to further ensure the fixation of the first positioning shell 8 .

[0043] In addition, when 5-10 groups of middle frames are pressed at one time, a partition 11 can be filled between two groups of middle frames. On the one hand, it can prevent the middle frames from being squeezed and damaged by each other, and on the other hand, it can ensure that the pressing position of the middle frame better fits the angle of the cutout 501 of the fixture head 5.

[0044] Three limiting bars 101 are installed at the edge of the substrate 1 , and cooperate with the mounting platform to surround the ball assembly to limit the XY axis direction of the lower mold 9 .

[0045] In the present invention, the specific edge pressing process may include the following processes:

[0046] 1. Product assembly: 5-10 mobile phone middle frame spray parts are stacked and waiting for edge pressing processing products. The products are fixed with two positioning shells and positioning pins 601, separated by a partition 11 in the middle, and the first positioning shell 8 and the second positioning shell 803 can be equipped with a suction function, which can preliminarily correct the product position and fix the product by suction.

[0047] 2. Automatic loading of parts by robot: The robot handle carries the product components and moves them to the top of the elastic positioning pad 10 to assemble them into the components to be processed. The height in the Z direction is limited by the ball assembly, and the pressure of the robot and the hardness of the silicone can be used to support the micro-adjustment of the height in the Z direction.

[0048] 3. Robot operation: The robot arm carries the component to be processed and moves and rotates one circle according to the established operating procedure under the support of the ball assembly. Under the extrusion of the fixture head 5, the C-angle scraping step of the stacked product is weakened to achieve a feeling of no scraping. Each edge pressing fixture head 5 insert is made into a V-shaped cutout 501 structure that matches the product processing step and can operate independently. It can slide freely under a thrust of 15-25N to ensure that each product can be evenly stressed for edge pressing operations.

[0049] 4. Automatic unloading by robot: After completing the edge pressing operation, the robot carries the processed components to a fixed position to complete the automatic unloading operation.

[0050] 5. Circular production: The subsequent robot automatically grabs the unprocessed products and proceeds to the next cycle.

[0051] 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 middle frame C-angle step edge pressing device, It is characterized in that include: A base plate (1), wherein a ball assembly is arranged on the base plate (1); A mounting platform is arranged on the base plate (1), wherein a fixture head (5) is arranged on the mounting platform, and a working end of the fixture head (5) is used to fit with the side edge of the middle frame; A lower mold (9) is arranged above the ball assembly and an upper mold cooperates with the lower mold (9). The upper mold and the lower mold (9) are used to clamp the middle frame. The upper mold and the lower mold (9) move in the plane above the ball assembly.

2. A middle frame C-angle step edge pressing device according to claim 1, It is characterized in that The ball assembly comprises positioning columns (2) arranged at equal intervals on the top surface of the base plate (1), the top surface of the positioning columns (2) being provided with ball grooves, the ball grooves being provided with rolling bodies (201), and the rolling bodies (201) being in contact with the bottom surface of the lower mold (9).

3. A middle frame C-angle step edge pressing device according to claim 1, It is characterized in that An oil groove (502) is provided on the side of the jig head (5), and a V-shaped cutout (501) is formed on the working surface end of the jig head (5).

4. A middle frame C-angle step edge pressing device according to claim 1 or 3, It is characterized in that The mounting platform comprises: A first mounting block (3) fixedly connected to the base plate (1), wherein the first mounting block (3) is provided with a mounting groove (301), A guide column (503) is provided in the installation groove (301), a spring (504) is sleeved on the guide column (503), and two ends of the spring (504) are respectively against the end wall of the installation groove (301) and the non-working surface of the fixture head (5); A second mounting block (4) is fixedly connected to the first mounting block (3), and the fixture head (5) is slidably connected to the second mounting block (4). Wherein, a limiting groove (401) is provided on the second mounting block (4), one end of the fixture head (5) is fixedly connected to a limiting plate, and the limiting plate is arranged in the limiting groove (401).

5. A middle frame C-angle step edge pressing device according to claim 1 or 3, It is characterized in that The jig heads (5) are provided in multiple groups, and the multiple groups of jig heads (5) are arranged in a tightly fitting manner on the second mounting block (4).

6. A middle frame C-angle step edge pressing device according to claim 1, It is characterized in that An elastic positioning pad (10) is provided on the lower mold (9).

7. A middle frame C-angle step edge pressing device according to claim 6, It is characterized in that Also includes a first positioning shell (8), to which a coordination rod (802) is fixedly connected; and a second positioning shell (803), wherein the cooperative rod (802) passes through the second positioning shell (803), and the second positioning shell (803) is arranged on the elastic positioning pad (10).

8. A middle frame C-angle step edge pressing device according to claim 7, It is characterized in that The upper mold comprises an upper mold plate (7) and a driving plate (6) fixedly connected to the upper mold plate (7), and a mechanical arm for driving the upper mold plate (7) to move in the XY axis direction is arranged on the top of the driving plate (6).

9. A middle frame C-angle step edge pressing device according to claim 8, It is characterized in that A positioning pin (601) is fixedly connected to the bottom of the driving plate (6), a fixture plug (801) is fixedly connected to the first positioning shell (8), the fixture plug (801) passes through the upper template (7) and extends to the top, and the positioning pin (601) is inserted into the fixture plug (801).

10. A middle frame C-angle step edge pressing device according to claim 9, It is characterized in that A guide rod (701) is installed on the top of the upper template (7), and an elastic fixing block (702) is installed on the guide rod (701). Two groups of symmetrically arranged elastic fixing blocks (702) are respectively pressed against opposite surfaces of the fixture plug (801).

11. A middle frame C-angle step edge pressing device according to claim 1, It is characterized in that It also includes a partition plate (11) which is arranged between the multiple groups of middle frames.

12. A middle frame C-angle step edge pressing device according to claim 1, It is characterized in that A limiting strip (101) is installed at the edge of the substrate (1) for limiting the position of the lower mold (9) in the XY axis direction.

Images