Frame structure with insert, pressing device and pressing method
By using a multi-dimensional, segment-by-segment pressing device and method, the deformation problem of strip-shaped plastic structures during assembly on metal shells was solved, enabling the linear installation of plastic inserts and high-yield processing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- RI SHAN COMPUTER ACCESSORY (JIASHAN) CO LTD
- Filing Date
- 2023-10-16
- Publication Date
- 2026-06-02
Smart Images
Figure CN117359256B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of 3C accessory processing technology, and particularly relates to a frame structure with inserts, a pressing device and a pressing method. Background Technology
[0002] With the continuous development of mobile terminal technology, the application of electronic devices such as smartphones, PDAs, and smartwatches has become extremely widespread, becoming an important part of people's work and life. The casings of these electronic devices typically use metal back covers, which offer advantages such as wear resistance and easy heat dissipation, while also giving users a high-end impression. The demand for product personalization drives the diversification of product processing; to meet the personalized assembly requirements of product components, structures of different materials need to be assembled onto metal casings for subsequent use. These are often strip-shaped plastic structures, which are prone to deformation during installation, affecting their assembly dimensions.
[0003] For example, Chinese patent CN00260763.8 discloses a computer antimagnetic shield comprising a plastic part and a metal part. The inner wall of the plastic part has several vertically protruding cross-shaped positioning parts and a square protrusion. One side of the protrusion has a locking part, and two latches extend vertically from each end of the inner wall of the plastic part. The metal part is mounted on the inner wall of the plastic part, and has cross-shaped locking holes punched corresponding to the positioning parts of the plastic part. It also has an opening punched corresponding to the protrusion of the plastic part, forming a locking piece. The pressing device includes a cylinder, a machine base, a guide mechanism, and a pressing mechanism.
[0004] Although the above solutions also fall under the 3C field, they do not solve the aforementioned technical problems. Summary of the Invention
[0005] The purpose of this invention is to address the above-mentioned problems by providing a frame structure with inserts, a pressing device, and a pressing method that can solve the aforementioned technical problems.
[0006] To achieve the above objectives, the present invention adopts the following technical solutions:
[0007] This pressing device includes a main support having a bottom and a top, with a workpiece fixture provided on the bottom. The device is characterized by having a plurality of translational actuators spaced apart along a first axis on the top, each of which is connected to a translational lateral push block that presses against the vertical side of a strip-shaped plastic insert. Additionally, vertical actuators spaced apart along the first axis are provided on the top, each of which is provided with a lifting pressure block that presses against the top surface of the plastic insert.
[0008] In the above-mentioned pressing device, a plurality of the translational actuators sequentially drive the corresponding translational lateral push blocks from one end of the plastic insert to the other end.
[0009] In the above-mentioned pressing device, each of the translational lateral push blocks has a plurality of contact surfaces that contact the vertical side surfaces of the plastic insert.
[0010] In the above-mentioned pressing device, the translational lateral push block and the lifting pressure block are parallel to each other and distributed at intervals.
[0011] In the above-mentioned pressing device, each of the translational lateral push blocks has a plurality of spaced protrusions on the side near the lifting pressure block, and the side of each protrusion away from the translational lateral push block is the contact surface described above.
[0012] In the above-mentioned pressing device, a clearance notch is provided on one corner of the lifting pressure block near the translational side push block. When the lifting pressure block descends to the position, the protrusion is in the clearance notch.
[0013] This application also provides a pressing device including a main support having a bottom and a top, a workpiece fixture being provided on the bottom, two sets of spaced-apart lifting and pressing mechanisms being provided on the top, and a bidirectional side vertical pressing mechanism being provided on the top between the two sets of lifting and pressing mechanisms. The bidirectional side vertical pressing mechanism includes a plurality of spaced-apart translation drivers, each of which has two translation lateral push blocks, one of which corresponds to one of the lifting and pressing mechanisms, and the other of which corresponds to the other lifting and pressing mechanism.
[0014] In the above-mentioned pressing device, the two translational lateral push blocks connected to the translational driver move synchronously or asynchronously.
[0015] In the above-mentioned pressing device, a heating module is provided on the bottom that extends into the contour cavity of the workpiece fixture.
[0016] This application also provides a pressing method using the aforementioned pressing device, the pressing method comprising the following steps:
[0017] S1. Clamping: Install the metal frame with glue added to the insert position onto the workpiece fixture;
[0018] S2. Heating: Heating the metal frame component described in step S1;
[0019] S3. Insertion: Align the strip-shaped plastic insert with the insert position on the metal frame in step S2. Several translation actuators sequentially drive the corresponding translational lateral push blocks from one end of the plastic insert to the other end to press against the vertical side of the plastic insert. When the translational lateral push blocks press against the vertical side of the plastic insert for a certain length, the lifting pressure block descends to press the section of the plastic insert that has been laterally pressed by the translational lateral push blocks from top to bottom, until the plastic insert is pressed against all the translational lateral push blocks and the lifting pressure block along its length.
[0020] S4. Pressure holding: Under a set time and pressure, the translational lateral push block and the lifting pressure block in step S4 are pressed against the plastic insert. After pressure holding, the pressing is canceled, and finally a metal frame part with the plastic insert is obtained.
[0021] In the above pressing method, in step S4, the holding time is 70s-90s and the pressure is 0.3-0.6MPa.
[0022] This frame structure with inserts is manufactured by the aforementioned pressing method.
[0023] Compared with existing technologies, the advantages of this application are:
[0024] By compressing the plastic insert from multiple dimensions and segment by segment, deformation can be prevented during assembly and pressure holding. At the same time, this method of compression ensures that the plastic insert is in a straight final installation state, thereby improving the pass rate of subsequent processing.
[0025] Each translational lateral push block uses a pressing contact method in which multiple individual surfaces meet and contact the vertical side of the plastic insert, and the lifting pressure block also uses a pressing contact method in which multiple individual surfaces meet and contact the top surface of the plastic insert. This method can provide a certain elastic buffer for the plastic insert when it is pressed to ensure the straightness of the plastic insert. Attached Figure Description
[0026] Figure 1 This is a three-dimensional structural diagram of the pressing device provided by the present invention.
[0027] Figure 2 This is a schematic diagram of a partial explosion structure of the pressing device provided by the present invention.
[0028] Figure 3 This is a partial structural diagram of the pressing device provided by the present invention, showing the side pressing and downward pressing.
[0029] Figure 4 yes Figure 3 A schematic diagram of the three-dimensional structure from another perspective.
[0030] Figure 5 This is a schematic diagram of the translational lateral push block structure provided by the present invention.
[0031] Figure 6 This is a schematic diagram of the frame structure with inserts provided by the present invention.
[0032] In the figure, the main support 1, bottom 10, top 11, base plate 12, annular heat insulation component 14, workpiece fixture 2, bidirectional side vertical surface pressing mechanism 3, translation driver 30, translation side push block 31, contact surface 310, protrusion 311, horizontal plate 32, lifting and pressing mechanism 4, vertical driver 40, lifting pressure block 41, clearance notch 410, heating module 5, plastic insert G1, and metal frame component G2. Detailed Implementation
[0033] 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.
[0034] This embodiment provides a three-axis coordinate system, XYZ coordinate system. The vertical direction is the Z-axis, and there are two axes, X and Y, perpendicular to the Z-axis. The X and Y axes represent two different directions.
[0035] Example 1
[0036] like Figure 1 and Figure 6 As shown, this pressing device includes a main support 1 with a bottom 10 and a top 11. The bottom 10 and the top 11 are connected by several columns. At the same time, a base plate 12 is provided below the bottom 10. The bottom 10 and the base plate 12 are also connected by several columns. At this time, a first overhead space is formed between the bottom 10 and the base plate 12, and a second overhead space is formed between the bottom 10 and the top 11. In the vertical direction, the height of the first overhead space is less than the height of the second overhead space.
[0037] The first overhead space is used to avoid the installation of the heating module 5, while the second overhead space provides a space for the workpiece fixture 2, the translation driver 30, the translation lateral push block 31, the vertical driver 40 and the lifting pressure block 41.
[0038] like Figures 3-4 As shown, a plurality of translation actuators 30 are provided at intervals along the first axis X on the top 11. Here, the first axis X is equivalent to the X-axis. In the Y-axis direction, the metal frame member G2 is allowed to enter and exit on opposite sides of the overhead space. Specifically, a plurality of translation actuators 30 are provided at the center of the lower surface of the top 11. The translation actuators 30 are translation actuators with at least two telescopic drive rods. The translation actuators 30 are, for example, cylinders, but they can also be hydraulic cylinders. Any actuator that can achieve linear drive can be used.
[0039] In a preferred embodiment, several translation actuators 30 are fixed horizontally on a horizontal plate 32. The horizontal plate 32 is connected to the top 11 by several uprights 33, and a strip-shaped block 34 is provided on the lower surface of the top 11, with the uprights 33 extending upward through the strip-shaped block 34.
[0040] Each translation actuator 30 is connected to a translational lateral push block 31 that presses against the vertical side of a strip-shaped plastic insert G1. The vertical side of the plastic insert G1 is parallel to the Z-axis. The direction of movement of the translational lateral push block 31 is the Y-axis. The translation actuators 30, which are spaced apart in the X-axis direction, drive the translational lateral push blocks 31 to move. During the movement, taking the X-axis length direction as an example, the translation actuators 30 from one end of the X-axis to the other end of the X-axis are activated one by one and force the translational lateral push blocks 31 to perform lateral pressing operations.
[0041] When several plastic inserts G1 need to be inlaid on the metal frame component G2, the number of first axes X is equal to the number of plastic inserts G1. For example, if there are two plastic inserts G1, there are two rows of translational lateral push blocks 31. Specifically, two sets of lifting and pressing mechanisms 4 are provided at the top 11, and a bidirectional side vertical pressing mechanism 3 is also provided at the top 11 between the two sets of lifting and pressing mechanisms 4. Each bidirectional side vertical pressing mechanism 3 includes several translational actuators 30 arranged at intervals. Each translational actuator 30 is provided with two translational lateral push blocks 31. One translational lateral push block 31 corresponds to one of the lifting and pressing mechanisms 4, and the other translational lateral push block 31 corresponds to the other lifting and pressing mechanism 4.
[0042] The two lateral translation push blocks 31 connected to the translation actuator 30 can move synchronously or asynchronously. When the two plastic inserts G1 are installed in place at the same time, the two lateral translation push blocks 31 move in opposite directions simultaneously, or they can move asynchronously. The translation actuator 30 is selected as a bidirectional multi-telescopic cylinder with telescopic rods, or alternatively, a translation actuator 30 can be linked to a single lateral translation push block 31.
[0043] The lifting and pressing mechanism 4 includes the following structure: Vertical actuators 40 are spaced apart along the first axis X at the top 11. The selection of the vertical actuators 40 is the same as that of the translation actuators 30, preferably cylinders. Each vertical actuator 40 is provided with a lifting block 41 that presses against the top surface of the plastic insert G1. When the translational lateral push block 31 completes lateral pressing of a certain length of the plastic insert G1, the lifting block 41 then sequentially presses the already pressed plastic insert G1 from top to bottom.
[0044] This embodiment uses a multi-dimensional and segment-by-segment compression method to prevent deformation of the plastic insert G1 during assembly and pressure holding. At the same time, this compression method can make the plastic insert G1 present a straight final installation state, thereby improving the pass rate of subsequent processing.
[0045] Each translational lateral push block 31 employs a pressing contact method where multiple individual surfaces contact the vertical side of the plastic insert G1, and the lifting block 41 also employs a pressing contact method where multiple individual surfaces contact the top surface of the plastic insert G1. This method provides a certain elastic buffer for the plastic insert G1 during pressing, ensuring the straightness of the plastic insert G1. The vertical actuator 40 is fixed to the outer surface of the strip block 34.
[0046] To ensure the stability of the pressing, the lifting pressure block 41 in this embodiment is T-shaped, and a vertical driver 40 has multiple power telescopic rods. A connecting block 42 is connected to the output end of the multiple power telescopic rods of the vertical driver 40, and the connecting block 42 is fixed to the horizontal part of the T-shape.
[0047] Secondly, the translational lateral push block 31 can ensure that the plastic insert G1 is installed in the Y-axis direction, and the lifting pressure block 41 can ensure that the plastic insert G1 is installed in the Z-axis direction.
[0048] Specifically, taking unilateral clamping as an example, a series of neatly arranged translation actuators 30 sequentially drive corresponding translational lateral push blocks 31 from one end of the plastic insert G1 to the other end to achieve segmented lateral clamping. Preferably, each translational lateral push block 31 has several contact surfaces 310 that contact the vertical side of the plastic insert G1. Adjacent contact surfaces 310 are connected by an arc-shaped concave surface, which serves to avoid deformation of the plastic insert G1, reduce weight, and lower manufacturing costs.
[0049] Furthermore, the lateral translation pusher 31 and the lifting pressure block 41 are parallel to each other and spaced apart. In terms of quantity, the lateral translation pusher 31 and the lifting pressure block 41 that act together on the plastic insert G1 are different in number. For example, one lifting pressure block 41 corresponds to two parallel lateral translation pushers 31 at intervals. From the lateral pressing step, it can be ensured that the lateral translation pusher 31 gradually presses the plastic insert G1 so that the final state of the plastic insert G1 is a straight line.
[0050] Furthermore, such as Figure 4 and Figure 5As shown, each translational push block 31 has several spaced protrusions 311 on the side near the lifting block 41, and the side of each protrusion 311 away from the translational push block 31 is the aforementioned contact surface 310. A clearance notch 410 is provided at the corner of the lifting block 41 near the translational push block 31. When the lifting block 41 descends to its position, the protrusions 311 are located in the clearance notch 410.
[0051] The combination of the protrusion 311 and the clearance notch 410 allows for a further reduction in the distance between the translational lateral push block 31 and the lifting pressure block 41 along the Y-axis. This reduced spacing allows for a larger contact area when the translational lateral push block 31 and the lifting pressure block 41 contact the plastic insert G1, thereby improving the stability of the clamping. Simultaneously, the spaced contact surfaces 310 facilitate faster heat dissipation from the heated and pressure-held plastic insert G1.
[0052] The space between two adjacent lateral push blocks 31 can also facilitate heat dissipation, as can the space between two adjacent lifting blocks 41.
[0053] like Figure 2 As shown, to achieve heating, a heating module 5 is provided on the bottom 10, extending into the contour cavity of the workpiece fixture 2. The heating module 5 is an electric heating module. Specifically, a vertically oriented vertical mounting through hole is provided on the bottom 10, and an annular heat insulation member 14 is installed in the vertical mounting through hole. The heating module 5 is fixed on the annular heat insulation member 14, and the top of the heating module 5 contacts the metal frame member G2, heating the metal frame member G2 in direct contact. During the heating process, the adhesive in the insert position of the metal frame member G2 is also heated, and the heated adhesive will bond with the plastic insert G1. After cooling, the plastic insert G1 will be fixed to the metal frame member G2. During the heating process, the plastic insert G1 can also be heated together, but the heating temperature cannot exceed the melting point of the material of the plastic insert G1.
[0054] Example 2
[0055] like Figures 1-6 As shown, this embodiment illustrates the specific working principle of Embodiment 1:
[0056] This pressing method uses the pressing device of Example 1, and the pressing method includes the following steps:
[0057] S1. Clamping: Install the metal frame piece G2 with adhesive added to the insert position onto the workpiece fixture 2; the metal frame piece G2 has a sheet or block structure, such as the sheet metal part of a laptop or mobile phone metal frame.
[0058] The metal frame component G2 is installed in the contour cavity of the workpiece fixture 2. The contour cavity is the contour cavity of the metal frame component.
[0059] In this process, the plastic insert G1 is pre-placed in the insert position of the glued metal frame G2.
[0060] S2. Heating: The metal frame component G2 from step S1 is heated. Heating is performed using heating module 5, with a heating temperature of 55℃-80℃ and a heating time of 70s-90s. The temperature of the metal frame component G2 and the plastic insert G1 is controlled between 75℃-90℃, preferably below 80℃.
[0061] The aforementioned annular heat insulation element 14 can prevent the heat from the heating module 5 from being lost due to heat transfer to the base 10.
[0062] S3, Insertion: Align the strip-shaped plastic insert G1 with the insert position on the metal frame G2 from step S2. Several translation drivers 30 sequentially drive the corresponding translation lateral push blocks 31 from one end of the plastic insert G1 to the other end to press it against the vertical side of the plastic insert G1. When the translation lateral push blocks 31 press against the vertical side of the plastic insert G1 for a certain length, the lifting block 41 descends to press the section of the plastic insert G1 that has been laterally pressed by the translation lateral push blocks 31 from top to bottom until the entire length of the plastic insert G1 is pressed by the translation lateral push blocks 31 and the lifting block 41.
[0063] S4. Pressure holding: Under the set time and pressure, the translational lateral push block 31 and the lifting pressure block 41 in step S4 are pressed against the plastic insert G1. The pressure holding time is 70s-90s and the pressure is 0.3-0.6MPA. After pressure holding, the pressing is canceled, and finally the metal frame part G2 with the plastic insert G1 is obtained.
[0064] Example 3
[0065] like Figures 1-6 As shown, this embodiment provides a frame structure with inserts, which is manufactured by the pressing method of Embodiment Two. Specifically, the frame structure with inserts includes a metal frame member G2 with insert positions, adhesive is applied to the insert positions, and a plastic insert G1 is installed on the insert positions. The transverse cross-section of the plastic insert G1 is a T-shaped structure after rotating 90°. The transverse portion of the plastic insert G1 is placed in the insert position, while the vertical portion of the plastic insert G1 abuts against the vertical surface of the metal frame member G2. Through Embodiment One and Embodiment Two, the vertical portion of the plastic insert G1 can be made to conform to the vertical surface. When the plastic insert G1 moves into place in the translational direction, the transverse portion of the plastic insert G1 is pressed into the insert position.
[0066] Of course, the metal frame component G2 is provided with several through holes for inserting posts, and the lateral part of the plastic insert G1 is provided with several posts that are inserted into the through holes for inserting posts. The through holes for inserting posts and the posts are fitted with a gap to facilitate translation and adjustment.
[0067] 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 pressing method based on a pressing device, characterized in that, The pressing device includes a main support (1) having a bottom (10) and a top (11). A workpiece fixture (2) is provided on the bottom (10). A plurality of translation actuators (30) are provided on the top (11) at intervals along a first axis (X). Each translation actuator (30) is connected to a translational lateral push block (31) that presses against the vertical side of a strip-shaped plastic insert (G1). The top (11) also has vertical actuators (40) at intervals along the first axis (X). Each vertical actuator (40) has a lifting pressure block (41) that presses against the top surface of the plastic insert (G1). The pressing method includes the following steps: S1. Clamping: Place the plastic insert (G1) on the metal frame (G2) with glue added to the insert position, and then install the metal frame (G2) on the workpiece fixture (2). S2. Heating: The metal frame component (G2) from step S1 is heated. S3, Insertion: Align the strip-shaped plastic insert (G1) with the insert position on the metal frame (G2) in step S2. Several translation drivers (30) sequentially drive the corresponding translation lateral push blocks (31) from one end of the plastic insert (G1) to the other end to press against the vertical side of the plastic insert (G1). When the translation lateral push block (31) presses against the vertical side of the plastic insert (G1) for a certain length, the lifting block (41) descends to press against a section of the plastic insert (G1) that has been laterally pressed by the translation lateral push block (31) from top to bottom, until the plastic insert (G1) is pressed against all the translation lateral push blocks (31) and the lifting block (41) along its length. S4. Pressure holding: Under a set time and pressure, the translational lateral push block (31) and the lifting pressure block (41) in step S4 are pressed against the plastic insert (G1). After pressure holding, the pressing is canceled, and finally a metal frame part (G2) with the plastic insert (G1) is obtained.
2. The pressing method according to claim 1, characterized in that, A plurality of the translation actuators (30) sequentially drive the corresponding translational lateral pushers (31) from one end of the plastic insert (G1) to the other end.
3. The pressing method according to claim 1 or 2, characterized in that, Each of the translational lateral push blocks (31) has a plurality of contact surfaces (310) that contact the vertical side of the plastic insert (G1).
4. The pressing method according to claim 3, characterized in that, The translational lateral push block (31) and the lifting pressure block (41) are parallel to each other and spaced apart.
5. The pressing method according to claim 4, characterized in that, Each of the translational lateral push blocks (31) has a plurality of spaced protrusions (311) on the side near the lifting pressure block (41), and the side of each protrusion (311) away from the translational lateral push block (31) is the aforementioned contact surface (310).
6. The pressing method according to claim 5, characterized in that, An avoidance notch (410) is provided on one corner of the lifting pressure block (41) near the translational lateral push block (31). When the lifting pressure block (41) descends to its position, the protrusion (311) is located in the avoidance notch (410).
7. The pressing method according to claim 1, characterized in that, The bottom (10) is provided with a heating module (5) that extends into the contour cavity of the workpiece fixture (2).