A production process for a precision mobile hard disk box

Abstract

The invention discloses a production process for a precision mobile hard disk case, comprising the following steps: first, pouring magnesium-aluminum solution raw materials into two different injection molds respectively; second, opening the mold after injection cooling and molding, and taking out the bottom shell and the box cover of the mobile hard disk case; third, accelerating cooling and cleaning the molded bottom shell and the box cover; fourth, polishing the bottom shell and the box cover after cooling and cleaning; fifth, deashing and cleaning the polished bottom shell and the box cover; and sixth, accurately assembling and testing the deashed bottom shell and the box cover. The beneficial effects achieved by the invention are as follows: by adding the step of accurately assembling and testing the bottom shell and the box cover, the invention performs assembly testing on the bottom shell and the box cover, and can timely discover the degree of loss of the injection mold. If the injection mold is seriously lost, it is replaced in time to avoid defects in mass production of the mobile hard disk case, thereby greatly improving the product quality of the mobile hard disk case.

Description

Technical Field

[0001] The invention discloses a production process for a precision mobile hard disk box, and belongs to the technical field of mobile hard disk box production process. Background Art

[0002] With the rapid development of the Internet and multimedia, people are increasingly encountering large-capacity data exchanges in GB units. In the face of such large amounts of data, hard disks are undoubtedly the best carriers. However, ordinary hard disks are installed in chassis and have operating systems installed, so they are not easy to move. The role of a hard disk case is to physically protect a hard disk, and at the same time use a connection method that is easy to move to realize the role of a mobile hard disk, especially precision mobile hard disk cases, which are produced using injection molding technology and are assembled from bottom shell injection molding parts and box cover injection molding parts. Finally, circuit boards, USP interfaces and other components are installed in the shell assembled from the bottom shell and the box cover.

[0003] In the actual production process of the current precision mobile hard disk enclosures, a batch production model is adopted. The injection molds used to make the bottom shell and the cover will cause wear and tear after long-term use. If the bottom shell and the cover are not accurately assembled and inspected in time, it will be difficult to detect the serious wear and tear of the injection mold, which can easily lead to defects in the mobile hard disk enclosure. Failure to stop the loss in time will greatly reduce the product quality of the mobile hard disk enclosure. Summary of the invention

[0004] The technical problem to be solved by the present invention is that during the production of current precision mobile hard disk boxes, the bottom shell and the box cover are not subjected to assembly inspection, which makes it difficult to timely discover the degree of wear of the injection mold, resulting in defects in the mass-produced mobile hard disk boxes, greatly reducing the product quality. A production process for a precision mobile hard disk box is provided to solve the above problem.

[0005] To achieve the above object, the present invention provides the following technical solution: a production process of a precision mobile hard disk box, comprising the following steps:

[0006] Step 1, pouring the magnesium and aluminum solution raw materials into two different injection molds respectively;

[0007] Step 2: After the injection molding is cooled and formed, the mold is opened and the bottom shell and the cover of the mobile hard disk box are taken out;

[0008] Step 3, accelerating cooling and cleaning the formed bottom shell and box cover;

[0009] Step 4, polishing the bottom shell and the box cover after cooling and cleaning;

[0010] Step 5, cleaning the polished bottom shell and box cover;

[0011] Step six: perform precise assembly inspection on the bottom shell and box cover after dust removal.

[0012] Preferably, step one further comprises:

[0013] 1) pouring the magnesium-aluminum solution raw material into a first injection mold for manufacturing a mobile hard disk box bottom shell;

[0014] 2) pouring the magnesium-aluminum solution raw material into a second injection mold for manufacturing a mobile hard disk box cover;

[0015] 3) After the magnesium-aluminum solution raw material fills the first injection mold and the second injection mold, wait for it to cool and form.

[0016] Preferably, the raw material of the magnesium-aluminum solution is 5083 magnesium-aluminum alloy.

[0017] Preferably, the composition of 5083 magnesium aluminum alloy is:

[0018] AL: margin

[0019] Cu: ≤0.40

[0020] Mg:≤0.10

[0021] Si:≤0.40

[0022] Fe:≤0.40

[0023] Mn:0.4-1.0

[0024] Zn:≤0.25

[0025] Cr:0.05-0.25

[0026] Ti:≤0.15.

[0027] Preferably, step 2 includes:

[0028] 1) Open the first injection mold and take out the bottom shell;

[0029] 2) Open the second injection mold and remove the box cover;

[0030] 3) Fix the removed box cover on the mechanical claw and make the bottom shell parallel;

[0031] 4) Fix the removed bottom shell on the flushing bracket and make the box cover tilted.

[0032] Preferably, the step three comprises:

[0033] 1) The mechanical claw sends the box cover into the cooling pool and allows the box cover to be immersed in the coolant;

[0034] 2) The upper and lower surfaces of the bottom shell are rinsed by the nozzle and the waste water is allowed to flow into the cooling pool along the inclined bottom shell;

[0035] 3) Water cooling can cool down the overall structure of the bottom shell and the cover.

[0036] Preferably, step four includes:

[0037] 1) Polishing the box cover after soaking and cooling, and grinding the front, back and side surfaces with a grinding roller;

[0038] 2) The bottom shell after immersion and cooling is polished, and its outer surface is polished by a grinding roller, and its inner wall and heat dissipation holes are polished by a grinding roller.

[0039] Preferably, the step five comprises:

[0040] 1) Fix the polished bottom shell and box cover at the front end of the fan outlet;

[0041] 2) Turn on the fan and blow away the waste on the bottom shell and the cover.

[0042] Preferably, the step six comprises:

[0043] 1) Perform docking and assembly inspection on the bottom shell and the box cover after dust removal to check whether the bottom shell and the box cover can be accurately docked;

[0044] 2) If the bottom shell and the box cover can be accurately docked after dust removal, and the gap at the docking point is smaller than the parameter value, it indicates that the mobile hard disk box is a qualified product, and the loss of the first injection mold and the second injection mold does not affect the product quality;

[0045] 3) If the bottom shell and the box cover can be accurately connected after dust removal, but the gap at the connection is greater than the parameter value, it indicates that the mobile hard disk box is an unqualified product, and the loss of the first injection mold and the second injection mold affects the product quality;

[0046] 4) If the bottom shell and the box cover cannot be accurately connected after dust removal, it indicates that the mobile hard disk box is an unqualified product, and the first injection mold and the second injection mold have been seriously damaged, which seriously affects the product quality.

[0047] Compared with the prior art, the present invention has the following beneficial effects:

[0048] The present invention adds a step of accurately assembling and inspecting the bottom shell and the box cover after dust removal, and performs assembly inspection on the bottom shell and the box cover, so that the degree of wear of the injection mold can be discovered in time. If the injection mold is seriously worn, it is replaced in time to achieve the purpose of stopping the loss in time, avoid defects in the batch production of mobile hard disk boxes, and greatly improve the product quality of the mobile hard disk boxes. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] A production process of a precision mobile hard disk box includes the following steps:

[0051] Step 1: Pour the magnesium and aluminum solution raw materials into two different injection molds respectively;

[0052] Step 2: After the injection molding is cooled and formed, open the mold and take out the bottom shell and cover of the mobile hard disk box;

[0053] Step 3: Accelerate cooling and cleaning of the formed bottom shell and box cover;

[0054] Step 4: Polish the bottom shell and the box cover after cooling and cleaning;

[0055] Step 5: Remove dust and clean the polished bottom shell and box cover;

[0056] Step 6: Perform precise assembly inspection on the bottom shell and box cover after dust removal.

[0057] Step one includes:

[0058] 1) Pour the magnesium-aluminum solution raw material into the first injection mold for manufacturing the bottom shell of the mobile hard disk box, and seal the injection port;

[0059] 2) pouring the magnesium-aluminum solution raw material into a second injection mold for manufacturing a mobile hard disk box cover, and sealing the injection port;

[0060] 3) After the magnesium-aluminum solution raw material fills the first injection mold and the second injection mold, wait for the magnesium-aluminum solution in the first injection mold and the second injection mold to cool and form by themselves.

[0061] Step 2 includes:

[0062] 1) Open the first injection mold and take out the bottom shell;

[0063] 2) Open the second injection mold and remove the box cover;

[0064] 3) Fix the removed box cover on the mechanical claw and make the bottom shell parallel;

[0065] 4) Fix the removed bottom shell on the flushing bracket and make the box cover tilted.

[0066] Step three includes:

[0067] 1) The mechanical claw sends the box cover into the cooling pool and immerses the box cover in the coolant to ensure that the coolant circulating in the cooling pool can absorb the heat on the box cover;

[0068] 2) The upper and lower surfaces of the bottom shell are rinsed by the nozzle and the waste water is allowed to flow into the cooling pool along the inclined bottom shell. When the nozzle sprays the coolant on the bottom shell in all directions, the coolant can absorb the heat on the bottom shell and allow the waste coolant with increased temperature to flow into the cooling pool, which is convenient for recycling the waste liquid and then allows the coolant to be recycled, effectively reducing the waste of water resources;

[0069] 3) Water cooling can cool down the overall structure of the bottom shell and the box cover, avoid the bottom shell and the box cover from being partially cooled in time, prevent cracks from occurring on the bottom shell and the box cover, and effectively reduce their damage rate.

[0070] Step 4 includes:

[0071] 1) The box cover after soaking and cooling is polished, and the front and back sides and side edges are polished by a grinding roller. The front and back sides of the box cover are smoother after polishing, and the side edges are more flush after polishing, so as to avoid bulges on the side edges of the box cover, which makes it difficult to dock and assemble with the bottom shell;

[0072] 2) The bottom shell after immersion cooling is polished, and its outer surface is polished by a sanding roller, and its inner wall and heat dissipation holes are polished by a sanding roller. The narrow space on the inner wall of the bottom shell can be polished by a sanding rod, and the sanding rod can be easily inserted into the heat dissipation hole, so as to facilitate the polishing of the inner hole wall of the heat dissipation hole.

[0073] Step five includes:

[0074] 1) Fix the polished bottom shell and box cover at the front of the fan outlet, and keep the bottom shell and box cover in an inclined state to ensure that the waste on the bottom shell and box cover can slide off faster;

[0075] 2) Turn on the fan and blow away the waste debris on the bottom shell and the box cover. Using wind blowing instead of water washing to clean the waste debris can prevent the waste debris from adhering to the surface of the bottom shell and the box cover when it comes into contact with water, and can prevent the waste debris from clogging the assembly holes on the bottom shell, ensuring that the docking post on the box cover can be inserted into the assembly hole and engage with it.

[0076] Step six includes:

[0077] 1) Perform docking and assembly inspection on the bottom shell and the box cover after dust removal to check whether the bottom shell and the box cover can be docked accurately;

[0078] 2) If the bottom shell and the box cover can be accurately docked after dust removal, and the gap at the docking point is smaller than the parameter value, it indicates that the mobile hard disk box is a qualified product, and the loss of the first injection mold and the second injection mold does not affect the product quality. At this time, there is no need to replace or repair the mold;

[0079] 3) If the bottom shell and the box cover can be accurately docked after dust removal, but the gap at the docking point is greater than the parameter value, it indicates that the mobile hard disk box is an unqualified product, and the loss of the first injection mold and the second injection mold affects the product quality. At this time, the mold needs to be repaired to stop the loss in time to avoid defects in the bottom shell and box cover produced in the subsequent production;

[0080] 4) If the bottom shell and the box cover cannot be accurately matched after dust removal, it indicates that the mobile hard disk box is an unqualified product, and the first injection mold and the second injection mold have been seriously damaged, which seriously affects the product quality. At this time, the mold needs to be replaced to avoid the bottom shell and the box cover being unable to be assembled, reduce the rework rate, and effectively save production costs.

[0081] Specifically, the magnesium-aluminum solution raw material is poured into the first injection mold and the second injection mold. When the injection ports of the first injection mold and the second injection mold are blocked, wait for the raw materials inside to cool and form. When the bottom shell in the first injection mold and the box cover in the second injection mold are formed, open the first injection mold and the second injection mold, take out the bottom shell and fix it on the flushing bracket, and keep it in an inclined state, which is conducive to the coolant sliding along the bottom shell into the cooling pool, take out the box cover and fix it on the mechanical claw, and the mechanical claw pushes the parallel box cover downward into the cooling pool. In the coolant, when the box cover is completely immersed in the coolant, it can ensure that the box cover is evenly cooled to achieve the purpose of complete cooling. The coolant is sprayed on it through the nozzles arranged above and below the bottom shell to ensure that both sides of the bottom shell can contact the coolant, ensure that the bottom shell can be evenly cooled, and prevent the bottom shell and the box cover from being partially uncooled, effectively reducing the probability of cracks in the bottom shell and the box cover. The motor drives the grinding roller to rotate, and then grinds the front and back sides of the box cover and its sides to ensure that the surface of the box cover is smoother and flatter. The surface of the bottom shell is polished by the grinding roller. The outer surface of the bottom shell is polished, and the polished outer surface is smoother and more beautiful. Since the inner corners of the bottom shell and the inner wall of the heat dissipation hole cannot be polished by the sanding roller, a sanding stick is used to manually polish it. After the bottom shell is polished, its exposed surface is smoother and flatter, avoiding bulges that cannot be assembled with the box cover. When the bottom shell and the box cover are docked and assembled, if the bottom shell and the box cover can be accurately docked after dust removal, and the gap at the docking is smaller than the parameter value, it indicates that the mobile hard disk box is a qualified product, and the loss of the first injection mold and the second injection mold does not affect the production. Product quality: if the bottom shell and the box cover can be accurately connected after dust removal, but the gap at the connection is greater than the parameter value, it indicates that the mobile hard disk box is an unqualified product, and the loss of the first injection mold and the second injection mold affects the product quality. If the bottom shell and the box cover cannot be accurately connected after dust removal, it indicates that the mobile hard disk box is an unqualified product, and the first injection mold and the second injection mold have been seriously damaged, which seriously affects the product quality. The staff can repair or replace the injection mold according to the test results. Stopping the loss in time can improve the product quality of the mobile hard disk box.

[0082] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A production process for a precision mobile hard disk box, characterized in that: The following steps are involved: Step 1, pouring the magnesium and aluminum solution raw materials into two different injection molds respectively; Step 2: After the injection molding is cooled and formed, the mold is opened and the bottom shell and the cover of the mobile hard disk box are taken out; Step 3, accelerating cooling and cleaning the formed bottom shell and box cover; Step 4, polishing the bottom shell and the box cover after cooling and cleaning; Step 5, cleaning the polished bottom shell and box cover; Step 6: Conduct precise assembly inspection on the bottom shell and the box cover after dust removal; The step six comprises: 1) Perform docking and assembly inspection on the bottom shell and the box cover after dust removal to check whether the bottom shell and the box cover can be docked accurately; 2) If the bottom shell and the box cover can be accurately connected after dust removal, and the gap at the connection is smaller than the parameter value, it indicates that the mobile hard disk box is a qualified product, and the loss of the first injection mold and the second injection mold does not affect the product quality; 3) If the bottom shell and the box cover can be accurately connected after dust removal, but the gap at the connection is larger than the parameter value, it indicates that the mobile hard disk box is an unqualified product, and the loss of the first injection mold and the second injection mold affects the product quality; 4) If the bottom shell and the box cover cannot be accurately connected after dust removal, it means that the mobile hard disk box is an unqualified product, and the first injection mold and the second injection mold have been seriously damaged, which seriously affects the product quality.

2. The production process of a precision mobile hard disk box according to claim 1 is characterized in that: The step one comprises: 1) Pour the magnesium-aluminum solution raw material into the first injection mold for manufacturing the bottom shell of the mobile hard disk box; 2) pouring the magnesium-aluminum solution raw material into the second injection mold for manufacturing the mobile hard disk box cover; 3) After the magnesium-aluminum solution raw material fills the first injection mold and the second injection mold, wait for it to cool and form.

3. The production process of a precision mobile hard disk box according to claim 1, characterized in that: The raw material of magnesium-aluminum solution is 5083 magnesium-aluminum alloy.

4. The production process of a precision mobile hard disk box according to claim 1, characterized in that: The second step comprises: 1) Open the first injection mold and take out the bottom shell; 2) Open the second injection mold and remove the box cover; 3) Fix the removed box cover on the mechanical claw and make the box cover parallel; 4) Fix the removed bottom shell on the flushing bracket and make the bottom shell tilted.

5. The production process of a precision mobile hard disk box according to claim 1, characterized in that: The second step comprises: 1) The robot claw sends the box cover into the cooling pool and allows the box cover to be immersed in the coolant; 2) The upper and lower surfaces of the bottom shell are rinsed by the nozzles and the waste water is allowed to flow into the cooling pool along the inclined bottom shell; 3) Water cooling can cool down the overall structure of the bottom shell and the cover.

6. The production process of a precision mobile hard disk box according to claim 1, characterized in that: The fourth step comprises: 1) Polish the box cover after soaking and cooling, and grind its front, back and side with a grinding roller; 2) The bottom shell after immersion cooling is polished, and its outer surface is polished by a grinding roller, and its inner wall and heat dissipation holes are polished by a grinding roller.

7. The production process of a precision mobile hard disk box according to claim 1, characterized in that: The step five comprises: 1) Fix the polished bottom shell and box cover at the front end of the fan outlet; 2) Turn on the fan and blow away the waste on the bottom shell and the cover.