Sheet metal fitting device
By using the pressing and fitting mechanism of the sheet metal fitting device, the problem of unstable adhesive fixing of the reflector cup was solved, and stable fastening of parts and efficient production were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNSHAN WAYS ELECTRONICS
- Filing Date
- 2025-06-05
- Publication Date
- 2026-07-07
AI Technical Summary
In the existing technology, the adhesive fixing method of the reflector cup is easily affected by high temperature environment, resulting in a decrease in adhesion, and the operation is cumbersome, which affects the display quality and production efficiency.
A sheet metal fitting device is used, which uses a pressing mechanism to press the parts together and uses the fitting mechanism to drive the fitting block to push the locking piece inward to achieve stable fastening of the parts.
It provides a more stable and reliable fixing effect, reduces the risk of component loosening and displacement, improves production efficiency and product quality stability, shortens the production cycle, and reduces production costs.
Smart Images

Figure CN224464060U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sheet metal product assembly technology, and in particular to a sheet metal fitting device. Background Technology
[0002] In the manufacturing of direct-lit backlight modules, ensuring precise control of the light source is crucial for improving display performance. To this end, a reflector cup is placed around each light source. Its main function is to effectively block the light from the illuminated area from reaching the unilluminated area when a local light source is lit, thereby preventing light leakage and improving display contrast and clarity.
[0003] In the traditional production process of direct-lit backlight modules, the reflector cup is usually fixed to its position using adhesive. However, this traditional fixing method has many drawbacks. On the one hand, adhesive fixing is easily affected by environmental factors; temperature and humidity fluctuations can affect its adhesion performance. Especially in high-temperature environments, the adhesion decreases, and the adhesive tape can also age, leading to a further decrease in adhesion and causing the reflector cup to shift. This, in turn, compromises the precise light blocking effect and severely impacts display quality. On the other hand, the adhesive fixing process is cumbersome. First, the adhesive tape must be precisely cut, then it must be pasted onto the reflector cup or the corresponding mounting position, and then the reflector cup must be installed and positioned. This series of operations is not only time-consuming and labor-intensive but also requires a high level of operator skill. In the context of large-scale production, this inefficient fixing method will undoubtedly slow down the overall production progress and increase production costs. Therefore, it is necessary to improve the existing technology to overcome its shortcomings. Utility Model Content
[0004] The problem to be solved by this utility model is to provide a sheet metal fitting device to overcome the shortcomings of previous fixing methods that are not stable and efficient enough.
[0005] The technical solution adopted by this utility model to solve its technical problem is: a sheet metal fitting device, comprising:
[0006] A positioning table is provided with a positioning groove for placing a product to be fitted; wherein, the product includes a sheet metal part and components built into the sheet metal part, and the side of the sheet metal part is provided with a retaining piece;
[0007] A pressing mechanism is mounted above the positioning platform and is used to press the components inside the sheet metal part.
[0008] A fitting mechanism, comprising a fitting block and a fitting drive device, wherein the fitting block is connected to the fitting drive device and is disposed opposite to the locking piece, and the fitting drive device is used to drive the fitting block to push the locking piece inward to fasten the component through the locking piece.
[0009] As a further improvement of this utility model, the pressing mechanism includes a pressing block for pressing the component and capable of lifting and lowering.
[0010] As a further improvement of this utility model, the sheet metal part has a fitting window on its side, the locking piece is located in the fitting window, and the top of the fitting window has a horizontal connecting piece. When the pressing block is pressed onto the component, the corresponding side of the pressing block and the horizontal connecting piece are in close contact or gap fit.
[0011] As a further improvement of this utility model, the locking pieces are provided on the two opposite inner walls of the fitting window, and the two locking pieces are symmetrically distributed.
[0012] As a further improvement of this utility model, the pressing mechanism further includes a bracket and a lifting drive device. The lifting drive device is fixed on the bracket, the pressing block is connected to the lifting drive device through a connecting plate, and the connecting plate and the bracket are slidably connected through a linear guide rail.
[0013] As a further improvement of this utility model, the sheet metal fitting device also includes a worktable and a transfer drive device. The bottom of the positioning table is fixed with a base plate, which is slidably mounted on the worktable. The transfer drive device is fixed on the worktable and connected to the base plate. The transfer drive device is used to drive the base plate to move the positioning table back and forth between the loading station and the fitting station.
[0014] As a further improvement of this utility model, the fitting drive device adopts a cylinder or a hydraulic cylinder; the transfer drive device adopts a cylinder or a linear module.
[0015] As a further improvement of this utility model, a buffer for abutting against the interlocking block is installed on the positioning platform.
[0016] As a further improvement of this utility model, each side of the sheet metal part is provided with a plurality of locking pieces, the fitting mechanism is correspondingly configured with a plurality of pieces that are one-to-one opposite to the side of the sheet metal part, and the fitting block is correspondingly provided with a plurality of fitting pressure heads.
[0017] The beneficial effects of this utility model are as follows: This utility model provides a sheet metal fitting device, which uses a pressing mechanism to press the parts together and uses a fitting mechanism to drive the fitting block to push the retaining piece on the side of the sheet metal part to bend inward, thereby fastening the internal parts together. This provides a more stable and reliable fixing effect, greatly reducing the risk of loosening or displacement of parts during use, and ensuring high accuracy and consistency in each fitting operation, thus guaranteeing the stability of product quality. At the same time, the fitting drive device quickly pushes the fitting block to complete the bending and fastening of the retaining piece. The whole process is quick and convenient, greatly shortening the product production cycle. In large-scale production scenarios, it can significantly improve production efficiency and reduce production costs. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a perspective view of the sheet metal fitting device and product of this utility model;
[0020] Figure 2 This is a perspective view of the sheet metal fitting device of this utility model after removing the pressing mechanism;
[0021] Figure 3 This is a perspective view of the pressing mechanism in the sheet metal fitting device of this utility model;
[0022] Figure 4 This utility model Figure 1 Enlarged view of section A;
[0023] Figure 5 This is a cross-sectional view of the sheet metal fitting device of this utility model.
[0024] Referring to the accompanying drawings, the following explanations are provided:
[0025] 1. Positioning stage; 101. Positioning groove; 2. Sheet metal parts; 201. Fastening piece; 202. Fitting window; 203. Horizontal connecting piece; 3. Components; 4. Pressing mechanism; 401. Pressing block; 402. Bracket; 403. Lifting drive device; 404. Connecting plate; 5. Fitting mechanism; 501. Fitting block; 5011. Fitting pressure head; 502. Fitting drive device; 6. Worktable; 7. Transfer drive device; 8. Base plate; 9. Buffer. Detailed Implementation
[0026] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.
[0027] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0028] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.
[0029] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The illustrations only show the components related to this application and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.
[0030] Additionally, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that practice can be carried out without these specific details.
[0031] The technical solutions provided by the various embodiments of this application are described below with reference to the accompanying drawings.
[0032] This utility model provides a sheet metal fitting device for assembling products by fitting. In this embodiment, the product refers to a direct-lit backlight module, which includes a sheet metal part 2 and a component 3 built into the sheet metal part 2. The sheet metal part 2 serves as the outer shell of the direct-lit backlight module, and the component 3 specifically refers to a reflector cup.
[0033] The sheet metal part 2 has a retaining piece 201 on its side. The retaining piece 201 can be formed by stamping. One end of it is integrally connected to the sheet metal part 2, and the other end is a movable end that can be bent.
[0034] See Figures 1 to 5 The sheet metal fitting device of this utility model includes: a positioning platform 1, a pressing mechanism 4, and a fitting mechanism 5.
[0035] The top of the positioning platform 1 is provided with a positioning groove 101, which is used to place the product to be fitted, providing a precise placement position for the product to be fitted, and ensuring the accuracy of subsequent fitting and pressing operations.
[0036] The pressing mechanism 4 is mounted above the positioning platform 1 and is used to press the component 3 inside the sheet metal part 2. After the component 3 inside the sheet metal part 2 is placed in place, the pressing mechanism 4 presses the component 3 from above the positioning platform 1. This operation ensures that the component 3 is fixed in position inside the sheet metal part 2, preventing the component 3 from being unevenly placed or shifting during the fitting process, which would cause it to fail to fit.
[0037] The fitting mechanism 5 includes a fitting block 501 and a fitting drive device 502. The fitting block 501 is connected to the fitting drive device 502 and is positioned opposite to the locking piece 201. The fitting drive device 502 drives the fitting block 501 to push the locking piece 201 inward to fasten the component 3. This sheet metal fitting device uses a pressing mechanism 4 to press the component 3, and the fitting mechanism 5 drives the fitting block 501 to push the locking piece 201 on the side of the sheet metal part 2 inward to fasten the internal component 3. Compared to traditional adhesive methods, this fastening method is unaffected by environmental factors, providing a more stable and reliable fixing effect. It greatly reduces the risk of loosening or displacement of the component 3 during use and ensures high accuracy and consistency in each fitting operation, guaranteeing product quality stability. In addition, this device quickly pushes the interlocking block 501 through the interlocking drive device 502 to complete the bending and fastening of the locking piece 201. The whole process is quick and convenient, which greatly shortens the production cycle of the product. In large-scale production scenarios, it can significantly improve production efficiency and reduce production costs.
[0038] like Figure 1 As shown, a base plate 8 is fixed to the bottom of the positioning platform 1, and the fitting mechanism 5 is installed on the base plate 8.
[0039] The fitting drive device 502 can be a pneumatic cylinder or a hydraulic cylinder; in this embodiment, a pneumatic cylinder is preferred, and it is fixed to the top of the base plate 8. The fitting block 501 is slidably mounted on the top of the base plate 8 via two linear guide rails, and the fitting block 501 is connected to the fitting drive device 502 via a floating joint.
[0040] Since each side of the sheet metal part 2 in this embodiment is provided with multiple locking pieces 201, the fitting mechanism 5 is configured with multiple pieces corresponding to the sides of the sheet metal part 2, and the fitting block 501 is provided with multiple fitting pressure heads 5011.
[0041] In this embodiment, the sheet metal part 2 is rectangular and has four sides. Correspondingly, four fitting mechanisms 5 are provided. After the product is placed in the positioning groove 101 and pressed by the pressing mechanism 4, the four fitting mechanisms 5 work simultaneously to achieve multi-sided fastening between the sheet metal part 2 and the component 3.
[0042] like Figure 2 As shown, multiple buffers 9 are installed on the positioning stage 1, which are respectively opposite to the four fitting blocks 501. During the process of the fitting drive device 502 driving the fitting blocks 501 to push the locking piece 201 to bend inward, the buffers 9 abut against the fitting blocks 501, thereby playing a buffering role.
[0043] In addition, the sheet metal fitting device of this utility model also includes a worktable 6 and a transfer drive device 7. For example... Figure 1 As shown, the base plate 8 is slidably mounted on the worktable 6 via two linear guide rails, and the transfer drive device 7 is fixed on the worktable 6 and connected to the base plate 8. The worktable 6 has a loading station and a fitting station. The loading station is located relatively forward, and the fitting station is located relatively backward and directly below the pressing mechanism 4. The transfer drive device 7 is used to drive the base plate 8 to move the positioning stage 1 back and forth between the loading station and the fitting station. By setting the loading station in a relatively forward position, away from the fitting station directly below the pressing mechanism 4, this invention effectively avoids spatial interference that the pressing mechanism 4 may cause during the loading process, providing a spacious and unobstructed space for the loading operation, making the loading process safer and smoother.
[0044] For example, the transfer drive device 7 can be a cylinder or a linear module. The linear module can be a ball screw linear module, a synchronous belt pulley linear module, a linear motor module, etc. In this embodiment, the transfer drive device 7 specifically uses a cylinder.
[0045] See Figure 1 and Figure 3 The pressing mechanism 4 includes a pressing block 401 for pressing the parts 3 and capable of lifting and lowering, a bracket 402, and a lifting drive device 403. The bracket 402 is fixedly mounted on the worktable 6, and the lifting drive device 403 is fixed vertically on the bracket 402. The pressing block 401 is located below the lifting drive device 403 and is connected to the lifting drive device 403 through a connecting plate 404. The connecting plate 404 and the bracket 402 are slidably connected through a linear guide rail. The lifting drive device 403 is used to drive the pressing block 401 to lift and lower.
[0046] In this embodiment, the lifting drive device 403 also specifically uses a cylinder.
[0047] Preferably, a soft rubber pad can be installed at the bottom of the pressure block 401 to prevent the product from being crushed.
[0048] See Figure 4 and Figure 5 The sheet metal part 2 has a fitting window 202 on its side, and a retaining piece 201 is located inside the fitting window 202. In this embodiment, retaining pieces 201 are provided on the left and right opposite inner walls of the fitting window 202, and the two retaining pieces 201 are symmetrically distributed. Both the retaining piece 201 and the fitting window 202 can be formed by stamping. The surface of the retaining piece 201 in its unbent state is flush with the side of the sheet metal part 2.
[0049] Furthermore, a horizontal connecting piece 203 is provided at the top of the fitting window 202. When the pressing block 401 is pressed onto the component 3, the corresponding side of the pressing block 401 abuts against the horizontal connecting piece 203 or fits with a slight gap. In this way, during the process of the fitting drive device 502 driving the fitting block 501 to push the locking piece 201 inward, the pressing block 401 stops the horizontal connecting piece 203, which can prevent the horizontal connecting piece 203 from deforming due to uneven force around the fitting window 202, thereby reducing the product defect rate.
[0050] Therefore, this sheet metal fitting device uses the pressing mechanism 4 to press the component 3, and the fitting mechanism 5 drives the fitting block 501 to push the retaining piece 201 on the side of the sheet metal part 2 inward to fasten the internal component 3. Compared with the traditional adhesive method, this fastening method is not affected by environmental factors and can provide a more stable and reliable fixing effect, greatly reducing the risk of loosening or displacement of the component 3 during use. It can also ensure high accuracy and consistency in each fitting operation, guaranteeing the stability of product quality. In addition, this device uses the fitting drive device 502 to quickly push the fitting block 501 to complete the bending and fastening of the retaining piece 201. The whole process is quick and convenient, greatly shortening the product production cycle. In large-scale production scenarios, it can significantly improve production efficiency and reduce production costs.
[0051] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A sheet metal fitting device, characterized in that, include: Positioning platform (1), the positioning platform (1) is provided with a positioning groove (101) for placing the product to be fitted; wherein, the product includes a sheet metal part (2) and a component (3) built into the sheet metal part (2), and the side of the sheet metal part (2) is provided with a retaining piece (201). The pressing mechanism (4) is mounted above the positioning platform (1) and is used to press the component (3) inside the sheet metal part (2); The fitting mechanism (5) includes a fitting block (501) and a fitting drive device (502). The fitting block (501) is connected to the fitting drive device (502) and is disposed opposite to the locking piece (201). The fitting drive device (502) is used to drive the fitting block (501) to push the locking piece (201) to bend inward so as to fasten the component (3) through the locking piece (201).
2. The sheet metal fitting device according to claim 1, characterized in that: The pressing mechanism (4) includes a pressing block (401) for pressing the component (3) and capable of lifting and lowering.
3. The sheet metal fitting device according to claim 2, characterized in that: The sheet metal part (2) has a fitting window (202) on its side. The locking piece (201) is located inside the fitting window (202). The top of the fitting window (202) has a horizontal connecting piece (203). When the pressure block (401) is pressed onto the component (3), the corresponding side of the pressure block (401) and the horizontal connecting piece (203) are close to each other or have a gap fit.
4. The sheet metal fitting device according to claim 3, characterized in that: The locking tabs (201) are provided on the two opposite inner walls of the fitting window (202), and the two locking tabs (201) are symmetrically distributed.
5. The sheet metal fitting device according to claim 2, characterized in that: The pressing mechanism (4) further includes a bracket (402) and a lifting drive device (403). The lifting drive device (403) is fixed on the bracket (402). The pressing block (401) is connected to the lifting drive device (403) through a connecting plate (404). The connecting plate (404) and the bracket (402) are slidably connected through a linear guide rail.
6. The sheet metal fitting device according to claim 1, characterized in that: It also includes a worktable (6) and a transfer drive device (7). The bottom of the positioning table (1) is fixed with a base plate (8). The base plate (8) is slidably mounted on the worktable (6). The transfer drive device (7) is fixed on the worktable (6) and connected to the base plate (8). The transfer drive device (7) is used to drive the base plate (8) to drive the positioning table (1) to reciprocate between the loading station and the fitting station.
7. The sheet metal fitting device according to claim 6, characterized in that: The fitting drive device (502) is a pneumatic cylinder or a hydraulic cylinder; the transfer drive device (7) is a pneumatic cylinder or a linear module.
8. The sheet metal fitting device according to claim 1, characterized in that: The positioning stage (1) is equipped with a buffer (9) for abutting against the fitting block (501).
9. The sheet metal fitting device according to claim 1, characterized in that: Each side of the sheet metal part (2) is provided with multiple locking pieces (201), the fitting mechanism (5) is provided with multiple pieces corresponding to the side of the sheet metal part (2), and the fitting block (501) is provided with multiple fitting pressure heads (5011).