A cold plate production disassembling process method

Abstract

The application discloses a cold plate production disassembly process method, comprising the following steps: S1 programming, S2 material preparation, S3 film coating, S4 feeding, S5 machining production, S6 discharging, S7 cutting, S8 film tearing and S9 residual glue removal. The cold plate production disassembly process method considers quality problems such as disassembly deformation or scratch in the programming link, standardizes the disassembly method in the disassembly link, and designs the disassembly tooling to realize bidirectional improvement of quality and efficiency, and has the following characteristics: convenient operation; quality stability; and the like.

Description

Technical Field

[0001] This invention relates to the field of cold-rolled steel plate production technology, and in particular to a process method for dismantling cold-rolled steel plates. Background Technology

[0002] With the rapid development of electronic technology, the integration and miniaturization of printed circuit board components have brought about prominent heat dissipation problems. Currently, the commonly used heat dissipation methods mainly include fans, heat pipes, and heat sinks, which are also known as cold plates.

[0003] A cold plate is a heat sink for printed circuit boards (PCBs). It is bonded to the PCB using adhesive bonding. The cold plate is precisely designed according to the PCB component layout. Power components have heat sinks designed and fabricated, which conduct heat away from the components. Non-heat sink components are protected by square frames and round holes. PCBs equipped with cold plates exhibit significantly improved thermal conductivity, dimensional stability, vibration resistance, and surface protection. Simultaneously, it mitigates the thermal expansion and contraction of components on the PCB, thereby enhancing the reliability and lifespan of electronic equipment.

[0004] Currently, the market for non-standard metal products produced by panelization basically uses traditional manual disassembly methods. However, there has been no in-depth research on processing technology and disassembly methods. The appearance quality and deformation of the already formed aluminum alloy products cannot be effectively controlled. When using automated equipment for cold plate production, the production clamping process of cold plates is a vacuum adsorption method. To ensure the reliability of clamping, a layer of yellow adhesive film is covered on the adsorption surface of the raw material. Multiple cold plates can be produced in one clamping. After the cold plates are unloaded from the equipment, they need to be disassembled manually. The disassembly process consumes a lot of manpower. Moreover, if the cold plate method is unreasonable and the cold plate structure is prone to deformation, the disassembly process will cause the cold plate to warp and leave a lot of residual adhesive on the plate surface.

[0005] Meanwhile, the cold-rolled steel plates produced by panel assembly need to be disassembled. However, the panel sizes vary, the processed cold-rolled steel plates need to maintain flatness, and the thickness of the cold-rolled steel plates varies. The normal process is that after the cold-rolled steel plates produced by machining are unloaded from the equipment, they are disassembled manually using tools. In order to ensure that the cold-rolled steel plates are not deformed or cut, irregular shapes need to be avoided when disassembling the plates. During the disassembly process, the cold-rolled steel plates to be disassembled are supported and fixed on a flat surface. Summary of the Invention

[0006] To address the problems of cold-rolled steel plate warping and excessive adhesive residue on the plate surface caused by the dismantling process in existing technologies, this invention provides a dismantling process method for cold-rolled steel plate production.

[0007] The technical solution of this invention is: a method for dismantling cold-rolled steel plates during production, comprising the following steps:

[0008] Step 1: Machine cutting. For cold plates with irregular structure, large external dimensions but small solid area, a 2mm milling cutter is used to cut the outermost part of the cold plate during the programming stage.

[0009] Step 2: Material preparation. Depending on the production equipment, cut the raw materials to the corresponding size, such as 250mm. 585mm, 480mm 600mm, 1170mm 1200mm;

[0010] Step 3: Lamination. Before lamination, manually clean the oil stains on the surface of the raw material to be laminated, and then use a lamination machine to laminate the raw material to be produced.

[0011] Step 4: Loading. Production staff clamp the coated raw materials onto the vacuum suction table of the processing equipment. The coated surface and the vacuum suction table surface are in contact. Before loading, the excess material on the table surface must be cleaned.

[0012] Step 5: Machining production. Automated equipment is used for panel production, and materials are unloaded after production is completed.

[0013] Step 6: Manual cutting; Fix the cut cold plate onto the disassembly fixture, and manually use a utility knife at an angle of about 80° to the plate surface to cut in a clockwise direction. For cold plates that have already been cut in the programming stage, cut manually along the programmed route. Some structures require the use of fixtures for cutting.

[0014] Step 7: Peeling the film; Press down on the middle part of the cold plate with one palm, and peel off the film from the corner of the cold plate with the other hand. As the longitudinal length of the film is torn increases, the part of the palm that is pressed down gradually moves down.

[0015] Step 8: Remove residual adhesive; remove the adhesive film from the surface of the cold plate by manual or machine grinding, remove it from the disassembly fixture, and complete the cold plate processing.

[0016] As a further improvement to the above technical solution:

[0017] Preferably, in Step 7, when the temperature is low, the adhesive film surface of the cold plate to be removed needs to be preheated.

[0018] Preferably, in Step 7, the distance between the combined surface of the adhesive film and the cold plate and the part pressed by the palm is less than or equal to 50 cm.

[0019] Preferably, the disassembly fixture includes a support frame, a support platform disposed on the upper end of the support frame, a limiting locking block detachably disposed on the support platform, and at least one sliding fixing component slidably connected in the sliding grooves on both sides of the support platform.

[0020] Preferably, the sliding fastener includes a slider that snaps into and slides within a groove, a sliding arm that is bolted to the two sliders, at least two threaded rods that pass through and are screwed to the sliding arms, and an adjustable pressure bar that is fixedly connected to the lower end of the threaded rods. The height between the adjustable pressure bar and the support platform is adjusted by the threaded rods.

[0021] Preferably, a plurality of equally spaced buffer springs are provided between the upper surface of the adjustable pressure bar and the lower surface of the sliding arm.

[0022] Preferably, a locking wrench is provided at the upper end of the threaded rod.

[0023] Preferably, a positioning strip is provided on one side of the support platform, and the positioning strip is located on the side perpendicular to the slide groove.

[0024] Preferably, the flatness of the upper surface of the support platform is less than or equal to 5 microns, and the support platform is made of aluminum alloy with hard anodizing on the surface.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The plate dismantling method provided by this invention analyzes the cold plate structure, considers quality issues such as plate deformation or scratches during the programming stage, standardizes the plate dismantling method, and designs matching dismantling tooling to achieve a dual improvement in quality and efficiency. It also possesses the following characteristics:

[0027] ① Ease of operation: The programming stage includes process planning, the disassembly stage includes standardized disassembly methods, and the disassembly tooling is used to assist in the disassembly process, which increases the convenience of the disassembly operation.

[0028] ② Quality stability: By optimizing the cold plate programming process, standardizing the plate disassembly method, and using plate disassembly tooling, the integrity of the cold plate after disassembly can be guaranteed, and quality problems such as cold plate warping and deformation and edge cuts can be basically solved.

[0029] 2. The plate dismantling fixture provided by the present invention can fix cold plates of different areas and thicknesses through the design and manufacturing of the plate dismantling fixture using the size adjuster and locking structure. At the same time, the bottom planar structure of the fixture improves the quality and efficiency of plate dismantling. Attached Figure Description

[0030] Figure 1 This is a three-dimensional structural diagram of the disassembly tooling of the present invention.

[0031] Reference numerals in the attached drawings: 1. Support frame; 2. Support platform; 3. Limiting locking block; 4. Slide groove; 5. Slider; 6. Sliding arm; 7. Threaded rod; 8. Adjustable pressure bar; 9. Buffer spring; 10. Locking wrench; 11. Positioning bar. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] In the description of this invention, it should be understood that the terms "front," "rear," "left," "right," "up," and "down," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. The technical solutions of the various embodiments in this invention can be combined, and the technical features in the embodiments can also be combined to form new technical solutions.

[0034] This invention provides the following technical solution:

[0035] The specific production process of cold-rolled steel plates is as follows: S1 Programming, S2 Material Preparation, S3 Film Coating, S4 Loading, S5 Machining, S6 Unloading, S7 Cutting, S8 Film Removal, S9 Residual Adhesive Removal.

[0036] The specific process is described below:

[0037] 1) Programming: For cold plates with irregular structure, large external dimensions but small solid area, a 2mm milling cutter is used to cut the outermost part of the cold plate during the programming stage.

[0038] 2) Material preparation: Depending on the production equipment, the raw materials are cut to the corresponding dimensions. The main equipment for cold-rolled steel plate production includes machining centers and engraving machines. The raw materials come in three sizes, including 250mm... 585mm, 480mm 600mm, 1170mm 1200mm.

[0039] 3) Lamination: Using a laminating machine, a film is applied to the raw materials to be produced. To ensure the adhesion of the film, the oil stains on the film surface of the raw materials must be cleaned manually before lamination.

[0040] 4) Loading: Production personnel clamp the coated raw materials onto the vacuum suction table of the processing equipment, with the coated surface in contact with the vacuum suction table surface. Before loading, excess material on the table surface must be cleaned, and automated equipment is used to assemble the production. After production is completed, the material is unloaded.

[0041] 5) Cutting: Fix the cut cold plate onto the disassembly fixture. Use a utility knife manually, with the knife at an angle of about 80° to the plate surface, and cut in a clockwise direction. For cold plates that have already been cut in the programming stage, cut manually along the programmed route. Some structures require the use of fixtures for cutting.

[0042] As attached Figure 1 As shown, the disassembly fixture has a support frame 1 at the bottom and a support platform 2 fixedly installed on the upper end of the support frame 1. The support platform 2 is used to place the cold plate. The flatness of the upper surface of the support platform 2 is less than or equal to 5 microns, which can ensure that the cold plate is in a flat state during the disassembly process and is not prone to warping. In addition, the support platform 2 is made of aluminum alloy and the surface is hard anodized, which can ensure the wear resistance of the surface and appropriately reduce the processing difficulty of the plate surface and the overall weight.

[0043] A detachable locking block 3 is placed in the middle of the support platform 2. Slide grooves 4 are provided on the left and right sides of the support platform 2. One end of the slide groove 4 passes through the support platform 2. Pairs of sliders 5 slide in a snap-fit ​​manner on the slide groove 4. The two ends of the sliding arm 6 are fixed to any two pairs of sliders 5 by bolts. Two threaded rods 7 are slidably connected through the upper surface of the sliding arm 6. An adjustable pressure bar 8 is fixedly connected to the lower end of the two threaded rods 7. Multiple equally spaced buffer springs 9 are provided between the upper surface of the adjustable pressure bar 8 and the lower surface of the sliding arm 6. A locking wrench 10 is provided at the upper end of the two threaded rods 7. The number of sliding arms 6 and threaded rods 7 can be added or reduced according to actual needs. The number is not necessarily as shown in the attached figure. By rotating the locking wrench 10 in the forward and reverse directions, the adjustable pressure bar 8 can be driven to quickly clamp and fix cold plates of different thicknesses. The buffer springs 9 can ensure that the adjustable pressure bar 8 will not damage the surface of the cold plate.

[0044] A positioning strip 11 is provided on one side of the support platform 2. The positioning strip 11 is located on the side perpendicular to the slide 4 and is used to position the cold plate in the early stage.

[0045] 6) Removing the film: When disassembling the plate, press down on the middle part of the cold plate with one palm, and tear off the film from the corner of the cold plate with the other hand. As the longitudinal length of the film is torn, the part of the palm pressing down is gradually moved down to ensure that the distance between the joint surface of the film and the cold plate and the part of the palm pressing down does not exceed 50 cm. In winter, when the temperature is low, the film surface of the cold plate to be disassembled needs to be preheated so that the film can be easily peeled off and the amount of deformation can be reduced.

[0046] 7) Residual adhesive removal: Remove the adhesive film from the surface of the cold plate by manual or machine grinding, and remove it from the disassembly fixture to complete the production.

[0047] The above processing method, through research on cold plate processing technology and plate dismantling technology, can greatly improve the appearance quality of cold plates and effectively improve plate dismantling efficiency.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A method for dismantling cold-rolled steel sheets during production, characterized in that, Includes the following steps: Step 1: Machine cutting. For cold plates with irregular structure, large external dimensions but small solid area, a 2mm milling cutter is used to cut the outermost part of the cold plate during the programming stage. Step 2: Material preparation. Depending on the production equipment, cut the raw materials to the corresponding size, such as 250mm. 585mm, 480mm 600mm, 1170mm 1200mm; Step 3: Lamination. Before lamination, manually clean the oil stains on the surface of the raw material to be laminated, and then use a lamination machine to laminate the raw material to be produced. Step 4: Loading. Production staff clamp the coated raw materials onto the vacuum suction table of the processing equipment. The coated surface and the vacuum suction table surface are in contact. Before loading, the excess material on the table surface must be cleaned. Step 5: Machining production. Automated equipment is used for panel production, and materials are unloaded after production is completed. Step 6: Manual cutting; Fix the cut cold plate onto the disassembly fixture, and manually use a utility knife at an 80° angle to the plate surface to cut in a clockwise direction. For cold plates that have already been cut in the programming stage, cut manually along the programmed route. Some structures require the use of fixtures for cutting. Step 7: Peeling the film; Press down on the middle part of the cold plate with one palm, and peel off the film from the corner of the cold plate with the other hand. As the longitudinal length of the film is torn increases, the part of the palm that is pressed down gradually moves down. Step 8: Remove residual adhesive; remove the adhesive film from the surface of the cold plate by manual or machine grinding, remove it from the disassembly fixture, and complete the cold plate processing; The disassembly fixture includes a support frame (1), a support platform (2) set on the upper end of the support frame (1), a limiting locking block (3) detachably set on the support platform (2), and at least one sliding fixing member slidably connected in the sliding grooves (4) on both sides of the support platform (2); The sliding fastener includes a slider (5) that is snapped into and slides in the slide groove (4), a sliding arm (6) that is fixed to the two sliders (5) by bolts, at least two threaded rods (7) that pass through and are screwed to the sliding arms (6), and an adjustable pressure bar (8) that is fixedly connected to the lower end of the threaded rod (7). The height between the adjustable pressure bar (8) and the support platform (2) is adjusted by the threaded rod (7).

2. The cold-rolled steel plate production depaneling process according to claim 1, characterized in that, In Step 7, the distance between the combined surface of the adhesive film and the cold plate and the part pressed by the palm is less than or equal to 50 cm.

3. The cold-rolled steel plate production depaneling process according to claim 1, characterized in that, Multiple equally spaced buffer springs (9) are provided between the upper surface of the adjustable pressure bar (8) and the lower surface of the sliding arm (6).

4. The cold-rolled steel plate production depaneling process according to claim 1, characterized in that, A locking wrench (10) is provided at the upper end of the threaded rod (7).

5. The cold-rolled steel plate production depaneling process according to claim 1, characterized in that, The support platform (2) is provided with a positioning strip (11) on one side, and the positioning strip (11) is located on the side perpendicular to the slide groove (4).

6. The cold-rolled steel plate production depaneling process according to claim 1, characterized in that, The flatness of the upper surface of the support platform (2) is less than or equal to 5 mils. The support platform (2) is made of aluminum alloy and the surface is hard anodized.

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