Pressure maintaining mechanism for computer upper cover

Abstract

The utility model relates to a pressure maintaining mechanism for a computer upper cover, the pressure maintaining mechanism comprises a rack, a first driving unit and a supporting plate, the first driving unit is fixedly mounted on the rack, the supporting plate is movably mounted on the rack, the first driving unit is connected to the supporting plate, and the supporting plate is movably mounted on the rack. A central pressure maintaining module and a side pressure maintaining module are installed on the supporting plate, the central pressure maintaining module comprises a servo motor and a central pressure head, the side pressure maintaining module comprises a supporting air cylinder, a configuration block and a side pressure head, the balancing weight is connected to the side pressure head, the supporting air cylinder is connected to the balancing weight, and the configuration block is connected to the side pressure head. The supporting air cylinder can drive the side edge pressing head to press the edge area of the product. According to the pressure maintaining mechanism, the central pressure maintaining module and the side pressure maintaining module are used for maintaining the pressure of the product, different areas of the product can have different pressure maintaining pressures, and the precision of the pressure maintaining pressures is improved.

Description

Technical Field

[0001] This application relates to automated assembly technology, and more particularly to a pressure-holding mechanism for a laptop computer upper cover. Background Art

[0002] During the production process of laptop computer upper covers, there are many components that need to be pressure-held and cured, and usually a pressure-holding device is required for pressure-holding treatment. In current pressure-holding devices, a counterweight is directly used to press the product. However, since many precision components are integrated in the central area of the laptop computer upper cover, directly using a counterweight for pressure-holding is likely to cause damage to the product, thereby reducing the qualified rate of the product. Summary of the Utility Model

[0003] To overcome the above defects, this application provides a pressure-holding mechanism for a laptop computer upper cover. The pressure-holding mechanism uses a central pressure-holding module and a side pressure-holding module to press the product, which can achieve different pressure-holding pressures in different areas of the product, improve the accuracy of the pressure-holding pressure, and reduce defective products caused by pressure-holding.

[0004] The technical solution adopted by this application to solve its technical problems is:

[0005] A pressure-holding mechanism for a laptop computer upper cover, including a frame, a first driving unit, and a support plate. The first driving unit is fixedly installed on the frame, the support plate is movably installed on the frame, the first driving unit is connected to the support plate, and the first driving unit can drive the support plate to operate. A central pressure-holding module and a side pressure-holding module are installed on the support plate. The central pressure-holding module includes a servo motor and a central pressure head, and the servo motor can drive the central pressure head to press the central area of the product. The side pressure-holding module includes a support cylinder, a counterweight block, and a side pressure head. The counterweight block is connected to the side pressure head, the support cylinder is connected to the counterweight block, and the support cylinder can drive the side pressure head to press the edge area of the product.

[0006] Optionally, the first driving unit includes a lead screw motor, and the support plate is screwed to the lead screw of the lead screw motor.

[0007] Optionally, the frame includes a workbench and support columns fixedly installed on the workbench, and the support plate is movably installed up and down on the support columns through linear bearings.

[0008] Optionally, the support plate is fixedly connected to a sliding plate through a support rod. The sliding plate is movably installed up and down on the first driving unit through a linear bearing. A bracket is fixedly provided on the support plate, and the central pressure-holding module and the side pressure-holding module are installed on the bracket.

[0009] Optionally, the servo motor is fixedly installed on the bracket, and a pressure sensor is installed between the servo motor and the center punch.

[0010] Optionally, the side pressure maintaining module further includes a counterweight frame. The supporting cylinder is fixedly installed on the bracket. The counterweight frame is movably connected to the piston rod of the supporting cylinder. A center column is fixedly provided on the counterweight frame. The counterweight block is sleeved on the center column, and the side punch is fixedly installed on the counterweight frame.

[0011] Optionally, a slider is fixedly provided on the counterweight frame, a guide rail is provided on the supporting cylinder, and the piston rod of the supporting cylinder is fixedly connected to the guide rail. The guide rail passes through the slider, and the slider can slide along the guide rail.

[0012] Optionally, one side pressure maintaining module is fixedly provided on each of the two sides of the center pressure maintaining module. Both the center punch and the side punch are rubber-coated punches.

[0013] The beneficial effects of the present application are as follows: In the present application, the center pressure maintaining module, that is, the single-axis closed-loop force control pressure maintaining module, can realize real-time adjustment and precise control of pressure, so as to ensure that the precision components in the central area of the product will not be damaged, improve the precision of the pressure maintaining pressure, and reduce the defective products generated by pressure maintaining; the side pressure maintaining module, that is, the counterweight block pressure maintaining module, can realize rapid pressure maintaining operation on the edge area of the product, and the pressure maintaining pressure is stable, the structure is simple, the cost of the pressure maintaining mechanism is reduced, and the pressure maintaining effect of the product is further improved; that is, the center pressure maintaining module and the side pressure maintaining module are used to achieve the purpose of pressure maintaining different areas of the same product with different pressures, which not only improves the precision of pressure maintaining, ensures that the precision components in the computer upper cover will not be damaged, improves the qualified rate of the product, but also improves the efficiency of pressure maintaining and ensures the pressure maintaining effect. Description of the Drawings

[0014] Figure 1 is one of the structural schematic diagrams of the pressure maintaining mechanism in the present application;

[0015] Figure 2 is Figure 1 the enlarged view of part A in

[0016] Figure 3 is another structural schematic diagram of the pressure maintaining mechanism in the present application;

[0017] Figure 4 is the third structural schematic diagram of the pressure maintaining mechanism in the present application;

[0018] Figure 5 is Figure 4 the enlarged view of part B in

[0019] In the figure: 10 - frame, 11 - workbench, 12 - support column, 13 - linear bearing, 20 - first drive unit, 21 - lead screw motor, 22 - lead screw, 30 - support plate, 31 - support rod, 32 - slide plate, 33 - bracket, 40 - central pressure - maintaining module, 41 - servo motor, 42 - central punch, 43 - pressure sensor, 50 - side pressure - maintaining module, 51 - support cylinder, 52 - counterweight, 53 - counterweight bracket, 54 - central column, 55 - side punch, 56 - slider, 57 - guide rail. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0021] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the following drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the objects so used can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non - exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these process, method, product or device.

[0022] For the sake of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "above" etc. can be used here to describe the spatial positional relationship between a device or feature shown in the figure and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device shown in the figure. For example, if the device in the figure is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned as "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientation of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding explanations are made for the spatial relative descriptions used here.

[0023] Embodiment: As Figures 1-5As shown in the figure, a pressure maintaining mechanism for a computer upper cover includes a frame 10, a first driving unit 20, and a support plate 30. The first driving unit 20 is fixedly installed on the frame 10. The support plate 30 is movably installed on the frame 10. The first driving unit 20 is connected to the support plate 30, and the first driving unit 20 can drive the support plate 30 to operate. A central pressure maintaining module 40 and a side pressure maintaining module 50 are installed on the support plate 30. The central pressure maintaining module 40 includes a servo motor 41 and a central pressure head 42. The servo motor 41 can drive the central pressure head 42 to press on the central area of the product. The side pressure maintaining module 50 includes a support cylinder 51, a configuration block 52, and a side pressure head 55. The counterweight block 52 is connected to the side pressure head 55. The support cylinder 51 is connected to the counterweight block 52. The support cylinder 51 can drive the side pressure head 55 to press on the edge area of the product. Among them, the product is a computer upper cover. The central area of the computer upper cover refers to the area containing the center point. The edge area of the computer upper cover refers to other areas near the side wall except the central area. The edge area is relative to the central area. The central pressure head 42 covers the central area of the computer upper cover, and the side pressure head 55 presses on the edge area outside the central area of the computer upper cover, so as to achieve different pressure maintaining pressures at different positions of the same product.

[0024] In this application, first, the first driving unit 20 is used to convey the central pressure maintaining module 40 and the side pressure maintaining module 50 to the product, that is, the computer upper cover. And the central pressure maintaining module 40 has already contacted the central position of the product, and the side pressure maintaining module 50 has not contacted the product. Then the servo motor 41 drives the central pressure head 42 to continue pressing the central position of the product until the pressure reaches the preset value. At the same time, the support cylinder 51 drives the side pressure head 55 to press on the edge area of the product, and the counterweight block 52 is used to maintain pressure on the edge area of the product. Many precision components are integrated in the central area of the computer upper cover. The central pressure maintaining module 40 is used to maintain pressure on the central area of the computer upper cover. Since the central pressure maintaining module 40 is driven by a servo motor and the pressure sensor is used to monitor in real time, that is, the central pressure maintaining module 40 is a single-axis closed-loop force control pressure maintaining module, the real-time pressure of the product can be fed back by the pressure sensor during the whole process of pressure maintaining, and the operation of the pressure maintaining servo motor can be effectively controlled to realize the change of force, improving the accuracy of the pressure maintaining pressure of the product, thus avoiding defective products caused by pressure maintaining, and improving the qualification rate and production efficiency of the products; for the edge area without precision components, the traditional method of using a counterweight block for pressure maintaining is adopted. The counterweight block has a simple structure and a stable pressure maintaining pressure, further improving the pressure maintaining effect of the product.

[0025] In this application, the central pressure-holding module, i.e., the single-axis closed-loop force control pressure-holding module, can achieve real-time adjustment and precise control of pressure, thus ensuring that the precision components in the central area of the product are not damaged, improving the precision of the pressure-holding pressure, and reducing the defective products generated by pressure-holding. The side pressure-holding module, i.e., the counterweight pressure-holding module, can achieve rapid pressure-holding operation on the edge area of the product, and the pressure-holding pressure is stable, with a simple structure, reducing the cost of the pressure-holding mechanism and further improving the pressure-holding effect of the product. That is, the central pressure-holding module and the side pressure-holding module are used to achieve the purpose of pressure-holding different areas of the same product with different pressures, which not only improves the precision of pressure-holding, ensures that the precision components in the computer upper cover are not damaged, improves the qualified rate of the product, but also improves the efficiency of pressure-holding and ensures the pressure-holding effect.

[0026] As Figure 1 shown, the first driving unit 20 includes a lead screw motor 21, and the support plate 30 is screwed to the lead screw 22 of the lead screw motor 21. The height of the support plate 30 can be adjusted by using the lead screw motor 21 to achieve rapid and precise adjustment of the up and down positions of the central pressure-holding module 40 and the side pressure-holding module 50.

[0027] As Figure 1 shown, the frame 10 includes a workbench 11 and support columns 12 fixedly installed on the workbench 11. The support plate 30 is movably installed up and down on the support columns 12 through linear bearings 13. In this way, the stability of the support plate 30 during operation can be improved. In a possible implementation manner, as Figure 1 shown, the workbench 11 is fixedly installed above the support columns 12, and the support columns 12 are vertically arranged with the workbench 11. The lead screw motor 21 is fixedly installed on the workbench 11. The support plate 30 is located below the workbench 11 and is parallel to the workbench 11. The lead screw motor 21 drives the support plate 30 to move up and down along the support columns 12 through the lead screw 22 to approach or move away from the product.

[0028] As Figure 1 shown, the support plate 30 is fixedly connected to the slide plate 32 through a support rod 31. The slide plate 32 is movably installed up and down on the first driving unit 20 through a linear bearing 13. A bracket 33 is fixedly provided on the support plate 30, and the central pressure-holding module 40 and the side pressure-holding module 50 are installed on the bracket 33. That is, the slide plate 32 is movably installed up and down on the lead screw 22 through a linear bearing 13. The use of the slide plate 32 can further improve the stability of the support plate 30 during operation. The slide plate 32, the support plate 30 and the workbench 11 are parallelly arranged, and the slide plate 32 is located between the support plate 30 and the workbench 11.

[0029] As Figure 2 and Figure 5As shown, the servo motor 41 is fixedly installed on the bracket 33, and a pressure sensor 43 is installed between the servo motor 41 and the center punch 42. The pressure sensor 43 is used to monitor the pressure of the center punch 42 in real time, so as to ensure that the pressure applied by the center punch 42 always remains within the preset range, avoiding damage to the precision electronic components on the computer upper cover. The servo motor 41 is a linear servo motor, and the linear servo motor 41 is used to drive the center punch 42 to move up and down to enable the product to have different holding pressures. During operation, the holding pressure of the product is obtained in real time by the pressure sensor 43. When the pressure sensor 43 detects that the holding pressure fluctuates outside the preset range, a signal will be sent to control the servo motor to rise or fall, so as to ensure that the holding pressure always remains within the preset range.

[0030] As Figure 2 and Figure 5 shown, the side holding pressure module 50 further includes a counterweight frame 53. The support cylinder 51 is fixedly installed on the bracket 33. The counterweight frame 53 is movably connected to the piston rod of the support cylinder 51. A center column 54 is fixedly provided on the counterweight frame 53. The counterweight block 52 is sleeved on the center column 54, and the side punch 55 is fixedly installed on the counterweight frame 53. The support cylinder 51 is vertically installed on the bracket 33, and the support cylinder 51 can drive the counterweight frame 53 to move up and down, so that the side punch 55 presses on or away from the product. During testing, the number and specifications of the counterweight blocks 52 can be selected according to needs, so it is very convenient to adjust the pressure. The counterweight block 52 transmits the pressure to the side punch 55 through the counterweight frame 53. When the side punch 55 contacts the product, the counterweight frame 53 moves to disengage from the support of the support cylinder 51, so that the gravity of the counterweight block 52 is transmitted to the product through the side punch 55.

[0031] As Figure 5 shown, a slider 56 is fixedly provided on the counterweight frame 53. A guide rail 57 is provided on the support cylinder 51, and the piston rod of the support cylinder 51 is fixedly connected to the guide rail 57. The guide rail 57 passes through the slider 56, and the slider 56 can slide along the guide rail 57. A slider 56 is fixedly provided on the side wall of the counterweight frame 53. There is a through hole in the slider 56. A guide rail 57 is fixedly provided on the side wall of the support cylinder 51. The guide rail 57 is inserted into the through hole. The slider 56 is limited to move in the middle section of the guide rail 57. In the natural state, the slider 56 is located at the lowest end of the guide rail 57 and is blocked by the guide rail 57, that is, the guide rail 57 supports the counterweight frame 53. In this way, when the piston rod of the support cylinder 51 extends, the counterweight frame 53 moves downward synchronously. When the side punch 55 presses on the product, the product gives an upward supporting force to the side punch 55, causing the slider 56 to slide upward along the guide rail 57 by a certain distance, so that the counterweight frame 53 disengages from the support of the guide rail 57. In this way, the gravity of the entire counterweight frame 53 acts on the product to achieve the function of the counterweight block 52 to hold the pressure of the product.

[0032] As Figure 1 and Figure 4 shown, on both sides of the central pressure-holding module 40, there is respectively fixed a side pressure-holding module 50. Both the central pressure head 42 and the side pressure heads 55 are rubber-coated pressure heads. The side pressure-holding modules 50 on both sides of the central pressure-holding module 40 are respectively used to perform pressure-holding on the two side edge regions of the product, enabling the product to withstand uniform pressure-holding pressure, and improving the qualified rate of pressure-holding of the product. Using the rubber-coated pressure heads to perform pressure-holding on the product can prevent the pressure heads from damaging the product and reduce the scrap rate of the product.

[0033] The operation method of the present application includes the following steps:

[0034] Step 1: The lead screw motor 21 drives the support plate 30 to reach the pre-pressure-holding position. The central pressure head 42 contacts the central region of the product, and the pressure-holding pressure < 0.1 N;

[0035] Step 2: The servo motor 41 drives the central pressure head 42 to continue descending. The pressure of the central pressure head 42 is monitored by the pressure sensor 43. When the pressure reaches the preset value, the servo motor 41 stops running;

[0036] Step 3: Simultaneously with Step 2, the support cylinder 51 drives the side pressure heads 55 to press on the edge regions of the product. The counterweight 52 transmits the pressure to the product through the side pressure heads 55; and the pressure-holding timing starts;

[0037] Step 4: During the pressure-holding process, when the pressure sensor 43 detects that the pressure-holding pressure fluctuates outside the preset range, it will send a signal to control the servo motor 41 to rise or fall, so as to ensure that the pressure-holding pressure is always maintained within the preset range;

[0038] Step 5: After the pressure-holding reaches the preset time, the support cylinder 51 drives the side pressure heads 55 to rise, the side wall pressure heads 55 leave the product, the lead screw motor 21 and the servo motor 41 rise simultaneously, and the central pressure head 42 leaves the product, and the pressure-holding operation ends.

[0039] It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A pressure-holding mechanism for a computer upper cover, characterized in that: It includes a frame (10), a first driving unit (20) and a support plate (30). The first driving unit (20) is fixedly installed on the frame (10). The support plate (30) is movably installed on the frame (10). The first driving unit (20) is connected to the support plate (30), and the first driving unit (20) can drive the support plate (30) to operate. A central pressure maintaining module (40) and a side pressure maintaining module (50) are installed on the support plate (30). The central pressure maintaining module (40) includes a servo motor (41) and a central pressure head (42). The servo motor (41) can drive the central pressure head (42) to press the central area of the product. The side pressure maintaining module (50) includes a support cylinder (51), a counterweight (52) and a side pressure head (55). The counterweight (52) is connected to the side pressure head (55). The support cylinder (51) is connected to the counterweight (52). The support cylinder (51) can drive the side pressure head (55) to press the edge area of the product.

2. The pressure-holding mechanism for the upper cover of a computer according to claim 1, characterized in that: The first driving unit (20) includes a lead screw motor (21). The support plate (30) is screwed to the lead screw (22) of the lead screw motor (21).

3. The pressure-holding mechanism for the upper cover of a computer according to claim 1, characterized in that: The frame (10) includes a workbench (11) and support columns (12) fixedly installed on the workbench (11). The support plate (30) is installed on the support columns (12) through linear bearings (13) so as to be movable up and down.

4. The pressure-holding mechanism for the upper cover of a computer according to claim 1, wherein: The support plate (30) is fixedly connected to a slide plate (32) through a support rod (31). The slide plate (32) is installed on the first driving unit (20) through a linear bearing (13) so as to be movable up and down. A bracket (33) is fixedly provided on the support plate (30). The central pressure maintaining module (40) and the side pressure maintaining module (50) are installed on the bracket (33).

5. The pressure-holding mechanism for the upper cover of a computer according to claim 4, characterized in that: The servo motor (41) is fixedly installed on the bracket (33). A pressure sensor (43) is installed between the servo motor (41) and the central pressure head (42).

6. The pressure maintaining mechanism for the upper cover of a computer according to claim 4, characterized in that: The side pressure maintaining module (50) further includes a counterweight frame (53). The support cylinder (51) is fixedly installed on the bracket (33). The counterweight frame (53) is movably connected to the piston rod of the support cylinder (51). A central column (54) is fixedly provided on the counterweight frame (53). The counterweight (52) is sleeved on the central column (54). The side pressure head (55) is fixedly installed on the counterweight frame (53).

7. The pressure-holding mechanism for the upper cover of a computer according to claim 6, wherein: A slider (56) is fixedly provided on the counterweight frame (53). A guide rail (57) is provided on the support cylinder (51), and the piston rod of the support cylinder (51) is fixedly connected to the guide rail (57). The guide rail (57) passes through the slider (56), and the slider (56) can slide along the guide rail (57).

8. The pressure-holding mechanism for the upper cover of a computer according to claim 1, characterized in that: One side pressure maintaining module (50) is fixedly provided on each of the two sides of the central pressure maintaining module (40). Both the central pressure head (42) and the side pressure head (55) are rubber-coated pressure heads.

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