Mylar press positioning device and apparatus

Abstract

This invention belongs to the field of 3C product grinding technology, and particularly relates to a Mylar pressing and positioning device and equipment. It solves the defects of existing technologies, such as unreasonable design. This Mylar pressing and positioning device includes a base plate, on which a Mylar positioning mold is provided. A Mylar contouring vacuum adsorption cavity is located between the base plate and the Mylar positioning mold. Several small adsorption holes communicating with the Mylar contouring vacuum adsorption cavity are provided on the top of the Mylar positioning mold. A product support floating plate, which can rise and fall relative to the base plate in the vertical direction, is provided on the product support floating plate. A contouring positioning mold avoidance groove is provided on the product support floating plate for the Mylar positioning mold to insert into, and the contouring positioning mold avoidance groove and the top surface of the Mylar positioning mold form a Mylar positioning groove. When pressed into place, the upper surface of the product support floating plate is flush with the top surface of the Mylar. Advantages of this application: Improved loading and unloading efficiency.

Description

Technical Field

[0001] This invention belongs to the field of 3C product grinding technology, and particularly relates to a Mylar pressing and positioning device and equipment. Background Technology

[0002] In the frame products of 3C products, Mylar bonding processing is required on the product.

[0003] For example, CN202122521698.X discloses a Mylar pressing system, including a frame and a positioning fixture, a pressing device, and a limiting device mounted on the frame. The positioning fixture is used to fix the product; the pressing device includes a moving mechanism and a pressing mechanism. The moving mechanism is used to move the pressing mechanism to the desired pressing position, and the pressing mechanism transmits pressure to the pressing surface of the product; the limiting device is used to fix the height of the pressing mechanism in the Z direction. Through this method, the solution can improve product quality and production efficiency while reducing the workload of operators.

[0004] This solution uses a method of pressing the Mylar by placing it on top and lowering it. This method requires the Mylar to be fixed upwards to the lifting device, which is difficult and inefficient.

[0005] For example, CN201721542913.1 describes an automated Mylar pressing device. The fixture includes a base and a mounting slot in the base. A mounting frame is mounted on the top surface of the control box. The pressing assembly is movably mounted on the mounting frame, aligned with the mounting slot. The mounting frame is equipped with a second drive device that drives the pressing assembly to rotate. A workpiece is placed in the mounting slot, and the Mylar is positioned on the pressing assembly. Then, the first drive device is activated, and a pushing member presses down against the pressing assembly, continuing to push until the pressing assembly is pressed into the mounting slot. The first drive device then drives again, lifting the pushing member and subsequently lifting the pressing assembly. The second drive device is activated, rotating the pressing assembly by a certain angle, and then the workpiece is picked up. The entire process is automated, highly convenient, requires little workspace, has wide adaptability, and is highly practical.

[0006] The above-mentioned solution uses a certain angle to remove the Mylar from the installation station and the workpiece after pressing. This solution is obviously more advanced than the first solution. However, this solution has the following technical problems: Although the pressing component can rotate a certain angle, it is limited by the pushing component. At this time, the Mylar feeding component is in an inclined state. Obviously, this method is not conducive to the accurate feeding of Mylar.

[0007] Secondly, since Mylar itself has a certain thickness, when it is pressed onto the surface of the workpiece, Mylar protrudes from the surface of the workpiece. When pressed, the workpiece (especially frame-type workpieces) deforms due to uneven stress. Summary of the Invention

[0008] The purpose of this invention is to address the above-mentioned problems by providing a Mylar pressing and positioning device and equipment that can solve the aforementioned technical problems.

[0009] To achieve the above objectives, the present invention adopts the following technical solutions:

[0010] This Mylar pressing and positioning device includes a base plate, on which a Mylar positioning mold is provided. A Mylar contouring vacuum adsorption cavity is provided between the base plate and the Mylar positioning mold. Several adsorption holes communicating with the Mylar contouring vacuum adsorption cavity are provided on the top of the Mylar positioning mold. A product support floating plate that can be raised and lowered relative to the base plate in the vertical direction is provided on the base plate. A contouring positioning mold avoidance groove for the Mylar positioning mold to be inserted is provided on the product support floating plate, and the contouring positioning mold avoidance groove and the top surface of the Mylar positioning mold form a Mylar positioning groove. When pressed into place, the upper surface of the product support floating plate is flush with the top surface of the Mylar.

[0011] In the aforementioned Mylar pressing and positioning device, a product end face positioning skirt with a thickness less than that of the product support floating plate is provided on the outer peripheral surface of the product support floating plate. The lower surface of the product support floating plate and the lower surface of the product end face positioning skirt are flush. The upper surface of the product end face positioning skirt and the outer peripheral surface of the product support floating plate form a product inner wall positioning step. Product outer wall positioning fasteners are provided on the outer peripheral surface of the product support floating plate in two vertical dimensions on the upper surface of the product end face positioning skirt. Product outer wall abutment locking actuators are provided on the outer peripheral surface of the product support floating plate in the remaining two vertical dimensions on the upper surface of the product end face positioning skirt.

[0012] In the aforementioned Mylar pressing and positioning device, the product outer wall positioning fastener includes a fixing block body, and an inner protruding positioning part is provided on the side of the fixing block body near the product inner wall positioning step.

[0013] In the aforementioned Mylar pressing and positioning device, the outer wall of the product abutting and locking actuator includes a fixed base, on which a horizontal abutting head perpendicular to the vertical direction is provided, and the horizontal abutting head is connected to a horizontal driver.

[0014] In the aforementioned Mylar pressing and positioning device, an elastic component is also provided between the base plate and the product end face positioning skirt plate to force the upper surface of the product support floating plate to be higher than the top surface of the Mylar positioning mold.

[0015] In the aforementioned Mylar pressing and positioning device, the elastic component includes a sleeve fixed to the base plate. At the upper end of the sleeve, there are several arched elastic plates converging towards the center line of the sleeve. The arched elastic plates form a circle. Inside the sleeve, there is a spring and a sphere placed on the upper end of the spring. Part of the sphere protrudes from the upper end of the arched elastic plates. On the lower surface of the product support floating plate, there is a spherical recess that matches the protruding part of the sphere.

[0016] In the aforementioned Mylar pressing and positioning device, the downward-facing opening of the spherical recess has a conical surface, and a gap is left between the outer wall of the upper free end of the arched elastic sheet and the conical surface.

[0017] In the aforementioned Mylar pressing and positioning device, a vertical guide structure is provided between the base plate and the product end face positioning skirt.

[0018] In the aforementioned Mylar pressing and positioning device, an elastic limit limiter is also provided between the base plate and the product end face positioning skirt plate.

[0019] This application also provides a Mylar pressing device, which includes the Mylar pressing positioning device.

[0020] Compared with existing technologies, the advantages of this application are:

[0021] When not pressed, the upper surface of the product support floating plate is above the top side of the Mylar positioning mold, thus forming the Mylar positioning groove. Since it is a bottom-mounted and upward-facing contour positioning mold clearance groove, the Mylar positioning groove can easily and accurately place the Mylar according to the set groove shape, improving the placement efficiency and positional accuracy of the Mylar.

[0022] During pressing, the product support floating plate is forced to move downward. Since the thickness of the product support floating plate is less than the thickness of the Mylar positioning mold, when it is pressed into place, the upper surface of the product support floating plate is flush with the top surface of the Mylar. This ensures that the other contact surfaces of the product are also supported except for the pressing force surface, thus preventing product deformation. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the Mylar pressing and positioning device provided by the present invention.

[0024] Figure 2 This is a top view of the Mylar pressing and positioning device provided by the present invention.

[0025] Figure 3 This is a side view of the Mylar pressing and positioning device provided by the present invention.

[0026] Figure 4 yes Figure 2 Schematic diagram of the cross-sectional structure along line AA.

[0027] Figure 5 yes Figure 4 Enlarged structural diagram at point B.

[0028] Figure 6 This is a schematic diagram of the Mylar compression explosion structure provided by the present invention.

[0029] Figure 7 This is a schematic diagram of the structure of Embodiment 2 provided by the present invention.

[0030] In the figure, the components are: base plate 1, Mylar positioning mold 2, adsorption hole 20, product support floating plate 3, contour positioning mold clearance groove 30, Mylar positioning groove 31, product end face positioning skirt 32, product outer wall positioning fastener 33, fixing block body 330, inner convex positioning part 331, product outer wall abutment locking actuator 34, fixing seat 340, horizontal abutment head 341, horizontal driver 342, spherical recess 35, conical surface 36, elastic component 4, sleeve 40, arched elastic sheet 41, spring 42, sphere 43, elastic limit limiter 6, lower pressure plate 7, flexible contact plate 8, Mylar contour vacuum adsorption cavity a, and Mylar b. Detailed Implementation

[0031] The following are specific embodiments of the invention, which are described in conjunction with the accompanying drawings. The technical solution of the invention will be further described, but the invention is not limited to these embodiments.

[0032] Example 1

[0033] like Figures 1-5 As shown, this Mylar pressing and positioning device includes a base plate 1, on which a Mylar positioning mold 2 is provided. The shape of the Mylar positioning mold 2 can be customized to conform to the shape of different Mylar products. A Mylar conforming vacuum adsorption cavity a is provided between the base plate 1 and the Mylar positioning mold 2. Specifically, a Mylar conforming lower recessed cavity is provided on the upper surface of the base plate 1, and a Mylar conforming upper recessed cavity is provided on the lower surface and inside of the Mylar positioning mold 2. The Mylar conforming lower recessed cavity and the Mylar conforming upper recessed cavity are sealed together to form the Mylar conforming vacuum adsorption cavity a. The sealing is achieved by setting a sealing ring at the closure point.

[0034] Several small adsorption holes 20 are provided on the top of the Myla positioning mold 2, which are connected to the Myla contour vacuum adsorption cavity a and the vacuum source.

[0035] A product support floating plate 3, which can be raised and lowered relative to the base plate 1 in the vertical direction, is provided on the base plate 1. A contour positioning mold clearance groove 30 is provided on the product support floating plate 3 for the Mylar positioning mold 2 to be inserted into. The contour positioning mold clearance groove 30 and the top surface of the Mylar positioning mold 2 form a Mylar positioning groove 31. When pressed into place, the upper surface of the product support floating plate 3 is flush with the top surface of the Mylar mold 2. The thickness of the product support floating plate 3 is equal to the thickness of the Mylar positioning mold 2.

[0036] When not pressed, the upper surface of the product support floating plate 3 is above the top side of the Mylar positioning mold 2, thus forming the Mylar positioning groove 31. Since it is a contour positioning mold clearance groove 30 with the groove opening facing upward, the Mylar positioning groove 31 can easily and accurately place the Mylar according to the set groove shape, improving the placement efficiency and positional accuracy of the Mylar.

[0037] During pressing, the product support floating plate 3 is forced to move downward. Since the thickness of the product support floating plate 3 is less than the thickness of the Mylar positioning mold 2, when it is pressed into place, the upper surface of the product support floating plate 3 is flush with the top surface of the Mylar. This ensures that the other contact surfaces of the product are also supported except for the pressing force surface, so as to prevent product deformation.

[0038] At the same time, the pressing contact plate and the product support floating plate 3 are in a state of large-area contact. During this process, the flatness of the product will not be deformed due to localized pressure.

[0039] A product end face positioning skirt 32 with a thickness less than that of the product support floating plate 3 is provided on the outer peripheral surface of the product support floating plate 3. The lower surface of the product support floating plate 3 and the lower surface of the product end face positioning skirt 32 are flush. The upper surface of the product end face positioning skirt 32 and the outer peripheral surface of the product support floating plate 3 form a product inner wall positioning step. For example, a mobile phone metal frame or middle frame is fitted onto the product inner wall positioning step to position the product on its inner peripheral surface. Product outer wall positioning fasteners 33 are provided on the outer peripheral surface of the product support floating plate 3 at two vertical dimensions on the upper surface of the product end face positioning skirt 32. Product outer wall abutment locking actuators 34 are provided on the outer peripheral surface of the product support floating plate 3 at the remaining two vertical dimensions on the upper surface of the product end face positioning skirt 32.

[0040] Dimensions such as the X and Y axes are circumferentially locked.

[0041] The outer wall positioning and fixing component 33 and the outer wall abutting and locking component 34 form a limit on four sides, thereby positioning the outer wall of the product.

[0042] When the product is pre-placed, the product's outer wall positioning fasteners 33 on two vertical dimensions first establish a two-dimensional reference positioning for the product. After the reference positioning is completed, the product's outer wall abutment locking actuator 34 actively contacts the product, allowing the product to be circumferentially locked.

[0043] Specifically, such as Figure 1 As shown, the product outer wall positioning and fixing component 33 in this embodiment includes a fixing block body 330, and an inner protruding positioning part 331 is provided on the side of the fixing block body 330 near the product inner wall positioning step. The inner protruding positioning part 331 is vertically distributed, and an inclined chamfer is provided at the upper end of the inner protruding positioning part 331 to facilitate the product being fitted onto the product support floating plate 3. At the same time, the inner protruding positioning part 331 abuts against the outer wall of the product. Next, the product outer wall abutting and locking actuator 34 includes a fixing seat 340, and a horizontal abutting head 341 perpendicular to the vertical direction is provided on the fixing seat 340. The horizontal abutting head 341 is connected to a horizontal actuator 342. The horizontal actuator 342 is a cylinder or a hydraulic cylinder.

[0044] The above-mentioned product outer wall positioning and fixing parts 33 and product outer wall abutting and locking moving parts 34 are all installed on the product end face positioning skirt plate 32, which can always lock the product as the product support floating plate 3 floats.

[0045] Specifically, such as Figures 4-5 As shown, an elastic component 4 is provided between the base plate 1 and the product end face positioning skirt 32 to force the upper surface of the product support floating plate 3 to be higher than the top surface of the Mylar positioning mold 2. Further, the elastic component 4 in this embodiment includes a sleeve 40 fixed on the base plate 1. The sleeves 40 are vertically distributed and the lower end of the sleeves 40 is closed. The sleeves 40 and the base plate 1 are threadedly connected. For example, the base plate 1 is provided with a threaded through hole, the sleeves 40 are installed in the threaded through hole and the two are threadedly connected. At the upper end of the sleeve 40, there are a plurality of arched elastic plates 41 converging towards the axis of the sleeve 40. The arched elastic plates 41 have certain elastic properties. The plurality of arched elastic plates 41 are arranged to form a circle. A spring 42 is provided inside the sleeve 40, and a ball 43 is placed on the upper end of the spring 42. Part of the ball 43 protrudes from the upper end of the arched elastic plates 41. A spherical recess 35 matching the protruding part of the ball 43 is provided on the lower surface of the product support floating plate 3.

[0046] The arched elastic sheet 41 provides axial constraint on the sphere 43, preventing it from detaching upwards. Simultaneously, the spring 42 consistently presses against the sphere 43, causing a portion of the sphere 43 to enter the spherical recess 35, providing elastic support to the product support floating plate 3. Furthermore, during compression, the product support floating plate 3 descends, forcing the sphere 43 back into the arched elastic sheet 41. The highest point of the sphere 43 remains flush with the highest point of the free end of the arched elastic sheet 41, jointly supporting the product support floating plate 3. Additionally, the upper free end of the arched elastic sheet 41 also exhibits a certain degree of inward convergence, further enhancing the elastic support performance.

[0047] The thickness of the arched elastic sheet 41 gradually decreases from bottom to top to give the free end better elastic properties.

[0048] Secondly, a conical surface 36 is provided at the downward opening of the spherical recess 35, and a gap is left between the outer wall of the upper free end of the arched elastic sheet 41 and the conical surface 36. The gap allows the arched elastic sheet 41 to avoid deformation under bending force, thereby extending the service life of the arched elastic sheet 41 and providing better elastic performance.

[0049] like Figures 1-5 As shown, a vertical guide structure is provided between the base plate 1 and the product end face positioning skirt 32. The vertical guide structure is a combination of guide posts and guide sleeves. An elastic limit limiting member 6 is also provided between the base plate 1 and the product end face positioning skirt 32. The elastic limit limiting member 6 is a T-shaped member. The lower end of the elastic limit limiting member 6 is threaded to the base plate 1, and the upper end of the elastic limit limiting member 6 is inserted into the T-shaped hole of the product end face positioning skirt 32. At this time, the elastic limit limiting member 6 is fixed and can form an upward elastic floating limit limit for the product end face positioning skirt 32.

[0050] The working principle of this embodiment is as follows:

[0051] When the product support floating plate 3 is not under stress, a Mylar positioning groove 31 is formed between the product support floating plate 3 and the Mylar positioning mold 2. At this time, the Mylar can be directly placed into the Mylar positioning groove 31 according to its shape. The Mylar is fixed by negative pressure adsorption, which makes the material feeding simple and accurate. Then the product is placed on the product support floating plate 3. At this time, the product is locked in multiple circumferential dimensions to ensure the accuracy of the product and Mylar pressing position.

[0052] During the pressing process, the product support floating plate 3 is forced to descend, that is, the upper surface of the product support floating plate 3 is flush with the top surface of Mylar b, and the product is in contact with Mylar b, thus completing the pressing connection between the two.

[0053] After pressing, the downward driving force is reset. At this time, the negative pressure disappears and the product support floating plate 3 drives the pressed Mylar product to detach from the Mylar positioning groove 31. Then the circumferential locking is canceled and the final product can be removed. The above structure can also prevent Mylar from being stuck in the Mylar positioning groove 31, thus achieving the purpose of automatic material release.

[0054] Example 2

[0055] like Figures 1-7 As shown, this embodiment provides a Mylar pressing device, which includes the Mylar pressing positioning device of Embodiment 1. Furthermore, the Mylar pressing device also includes a lower pressure plate 7 located above the Mylar pressing positioning device, and the lower pressure plate 7 is connected to a lifting drive cylinder.

[0056] The Mylar pressing equipment also includes a flexible contact plate 8, which is independently set or installed on the lower pressure plate 7. The flexible contact plate 8 can press against the upper surface of the product. Of course, the flexible contact plate 8 has a circumferential guard that matches the circumferential surface of the product to protect the upper and circumferential surfaces of the product. The flexible contact plate 8 is made of silicone and has a clearance structure in its circumferential direction. The clearance structure is used to avoid the product's outer wall positioning and fixing parts 33 and the product's outer wall abutment and locking parts 34.

[0057] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A Mylar pressing and positioning device, comprising a base plate (1), characterized in that, A Myla positioning mold (2) is provided on the base plate (1). A Myla contour vacuum adsorption cavity (a) is provided between the base plate (1) and the Myla positioning mold (2). Several adsorption holes (20) communicating with the Myla contour vacuum adsorption cavity (a) are provided on the top of the Myla positioning mold (2). A product support floating plate (3) that can be raised and lowered relative to the base plate (1) in the vertical direction is provided on the base plate (1). A contour positioning mold avoidance groove (30) for the Myla positioning mold (2) to be inserted is provided on the product support floating plate (3). The contour positioning mold avoidance groove (30) and the top surface of the Myla positioning mold (2) form a Myla positioning groove (31). When pressed into place, the upper surface of the product support floating plate (3) is flush with the top surface of the Myla (b).

2. The Mylar pressing and positioning device according to claim 1, characterized in that, A product end face positioning skirt (32) with a thickness less than that of the product support floating plate (3) is provided on the outer peripheral surface of the product support floating plate (3). The lower surface of the product support floating plate (3) and the lower surface of the product end face positioning skirt (32) are flush. The upper surface of the product end face positioning skirt (32) and the outer peripheral surface of the product support floating plate (3) form a product inner wall positioning step. Product outer wall positioning fasteners (33) located on the outer peripheral surface of the product support floating plate (3) are provided on two vertical dimensions of the upper surface of the product end face positioning skirt (32). Product outer wall abutment locking actuators (34) located on the outer peripheral surface of the product support floating plate (3) are provided on the remaining two vertical dimensions of the upper surface of the product end face positioning skirt (32).

3. The Mylar pressing and positioning device according to claim 2, characterized in that, The product outer wall positioning fastener (33) includes a fixing block body (330), and an inner protruding positioning part (331) is provided on the side of the fixing block body (330) near the product inner wall positioning step.

4. The Mylar pressing and positioning device according to claim 2, characterized in that, The outer wall abutment locking actuator (34) of the product includes a fixed seat (340), on which a horizontal abutment head (341) perpendicular to the vertical direction is provided, and the horizontal abutment head (341) is connected to a horizontal driver (342).

5. The Mylar pressing and positioning device according to claim 2, characterized in that, An elastic component (4) is provided between the base plate (1) and the product end face positioning skirt plate (32) to force the upper surface of the product support floating plate (3) to be higher than the top surface of the Mylar positioning mold (2).

6. The Mylar pressing and positioning device according to claim 5, characterized in that, The elastic component (4) includes a sleeve (40) fixed on the base plate (1). At the upper end of the sleeve (40) are a plurality of arched elastic plates (41) converging toward the axis of the sleeve (40). The arched elastic plates (41) form a circle. A spring (42) is provided inside the sleeve (40), and a sphere (43) is placed on the upper end of the spring (42). Part of the sphere (43) protrudes from the upper end of the arched elastic plates (41). A spherical recess (35) matching the protruding part of the sphere (43) is provided on the lower surface of the product support floating plate (3).

7. The Mylar pressing and positioning device according to claim 6, characterized in that, The spherical recess (35) has a conical surface (36) at its downward opening, and there is a gap between the outer wall of the upper free end of the arched elastic sheet (41) and the conical surface (36).

8. The Mylar pressing and positioning device according to claim 2, characterized in that, A vertical guide structure is provided between the base plate (1) and the product end face positioning skirt plate (32).

9. The Mylar pressing and positioning device according to claim 2, characterized in that, An elastic limit stop (6) is also provided between the base plate (1) and the product end face positioning skirt plate (32).

10. A Mylar pressing device, characterized in that, The Mylar pressing equipment includes the Mylar pressing positioning device as described in any one of claims 1-9.

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