Fixing jig for keyboard surface of notebook computer

Abstract

The utility model discloses a notebook computer keyboard face fixing jig, and belongs to the field of milling machine fixing jigs. The keyboard surface shell of the notebook computer is designed, the vertical edge of the shell is limited and blocked through the external push rod and the blocking rod, and for the edge of the shell which is provided with a plurality of holes and is easy to deform, the limiting block at the contact part of the external push rod and the limiting block can be customized according to the shapes of the holes; and the movement range of the edge of the part of the shell is limited through the limiting block, so that the part of the shell cannot move due to milling of the tool bit when the tool bit is used for machining, and the stability of subsequent milling machining of the keyboard surface shell is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the field of milling machine fixing jigs, in particular to a notebook computer keyboard surface fixing jig. Background Art

[0002] Milling machine fixtures play a vital role in milling processing. Their main functions include clamping workpieces, improving production efficiency, and protecting workpiece surfaces.

[0003] A fixture that matches the workpiece can effectively improve the efficiency of workpiece processing and achieve fast and accurate workpiece installation. Depending on the required processing position, a fixed fixture dedicated to single-step processing can better adapt to a single processing workpiece and protect other parts of the workpiece according to actual processing needs.

[0004] Especially for laptop shells, most of the current laptop shells are made of plastic or aluminum, and the production process of aluminum shells mostly adopts stamping. After stamping, the edge of the workpiece needs to be further polished and refined. At present, negative pressure adsorption solutions are mostly used to fix this type of shell on the milling machine.

[0005] However, for the shell of some notebook keyboard surfaces with special structures, grooves for the laptop computer hinges need to be preset on the left and right ends of the top of the shell. At the same time, the top shell needs to have multiple heat dissipation holes and reserved slot holes for multi-function slots. This results in the shell being easily pushed by the cutter head when the top section of the notebook keyboard surface is directly processed by the cutter head on the milling machine without any limit, resulting in incomplete processing or too deep processing, which greatly reduces the yield rate of the shell.

[0006] Therefore, a new design is needed that can provide better positioning and clamping effects on the vertical edge portion of the housing that has multiple holes and is easily deformed. Utility Model Content

[0007] In view of the above problems existing in the prior art, the purpose of the utility model is to provide a laptop computer keyboard surface fixing fixture.

[0008] In order to solve the above problems, the technical solution adopted by the utility model is as follows:

[0009] A laptop keyboard surface fixing fixture comprises a shell of the laptop keyboard surface, wherein the shell is a box-shaped structure with a plurality of keyboard grid holes in the middle and vertical edges around it, and further comprises a base, a pressure plate and a positioning push rod, wherein the base is provided with a positioning block, and the shape and size of the positioning block match the keyboard grid in the middle of the shell, a fixed blocking rod is provided on one side of the base, an extrusion push rod is provided on the other side of the base where the blocking rod is provided, and the shell is arranged between the blocking rod and the extrusion push rod, a positioning push rod is provided on one side of the base located at the top of the shell, a contact surface between the positioning push rod and the shell is provided with a limit block matching the side holes of the shell, and the pressure plate covers the middle of the shell and can be fixed to the base.

[0010] The size of the pressing plate is smaller than the size of the space in the center of the shell, and the edge height of the pressing plate is lower than the height of the erected portion of the edge of the shell.

[0011] The contact surfaces of the blocking rod and the extrusion push rod with the shell are arc-shaped structures matching the vertical edges of the shell.

[0012] The extrusion push rod and the positioning push rod are both pushed by cylinders.

[0013] The base is provided with a pressing plate positioning rod and a fixing rod, and the pressing plate is provided with a positioning hole matching the pressing plate positioning rod and the fixing rod.

[0014] The fixing rod is a rotatable T-shaped structure, and the positioning hole on the pressing plate that matches the fixing rod is a countersunk hole structure that matches the fixing rod.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model is designed for the keyboard surface shell of a laptop computer, and the vertical edge of the shell is limited and blocked by an external push rod and a blocking rod. For the edge of the shell with many holes and easy to deform, the limit block of the contact part of the external push rod and the shell can be customized according to the shape of the holes. The movement range of this part of the shell edge is limited by the limit block, so that the shell will not move due to the milling of the cutter head during processing, thereby ensuring the stability of the subsequent milling processing of the keyboard surface shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 is a schematic diagram of the base structure;

[0019] Figure 3 A magnified schematic diagram of the top edge of the housing;

[0020] In the figure: 1, base; 2, pressure plate; 3, shell; 4, shell edge; 5, extrusion push rod; 6, blocking rod; 7, positioning push rod; 8, positioning block; 9, pressure plate positioning rod; 10, fixing rod; 11, positioning hole. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with specific embodiments.

[0022] like Figure 1 and Figure 2 As shown, the utility model mainly includes a base 1 and a pressure plate 2 of the fixture, and a shell 3 of the laptop keyboard surface is sandwiched between the base 1 and the pressure plate 2. The structure of the shell 3 is a box-shaped structure with keyboard key holes but the edges around it are upright and bent, and two grooves reserved for the notebook hinge are opened at the top of the shell 3, and a plurality of heat dissipation holes and slot holes are also set at the edge of the shell 3 between the two grooves.

[0023] The positions of the extrusion push rod 5, the blocking rod 6 and the positioning push rod 7 are arranged on the base 1 according to the actual size of the shell 3, wherein the extrusion push rod 5 and the blocking rod 6 are arranged on the left and right sides of the base 1, corresponding to the vertical edge parts of the left and right sides of the shell 3, the blocking rod 6 is fixed on the base 1, and the extrusion push rod 5 is driven by a cylinder arranged on the base 1. After the cylinder is started, the extrusion push rod 5 moves toward the blocking rod 6 on the opposite side, and its main function is to clamp the shell 3 between the extrusion push rod 5 and the blocking rod 6. Moreover, the surface where the extrusion push rod 5 and the blocking rod 6 contact with the outer edge part of the shell 3 is an arc structure bent in the direction of the shell 3, and the arc structure matches the edge curvature of the shell 3, which can better limit the shell 3 from the upper side of the edge structure of the shell 3, and prevent the shell 3 from bending when being squeezed, and flipping out from the upper side of the extrusion push rod 5 in the horizontal direction.

[0024] The positioning push rod 7 is arranged above the base 1, corresponding to an edge of the shell 3 with a plurality of heat dissipation holes and a hinge groove, but not connected to other edge parts. The positioning push rod 7 is also pushed by the cylinder. When the cylinder is started, the positioning push rod 7 will be pushed in the direction where the shell 3 is installed. The difference between the positioning push rod 7 and the extrusion push rod 5 is that, in addition to the arc structure matching the shell 3, the contact surface between the positioning push rod 7 and the shell 3 is also provided with a limit block that matches the shape and size of the heat dissipation holes and slot holes opened on the edge 4 of the shell. The specific structure is as follows: Figure 3 shown.

[0025] When the positioning push rod 7 moves, the stopper first enters the corresponding hole on the shell edge 4 and extends a portion from the hole. As the positioning push rod 7 is continuously pushed, the shell edge 4 is not integrally connected to the other edges of the shell 3 and its structural strength is weak, so it tends to bend toward the inside of the shell 3. However, when the shell edge 4 bends, the hole structure of the shell edge 4 will be blocked by the stopper and cannot bend. After the positioning push rod 7 moves to the preset position, it provides sufficient resistance to prevent deformation for the shell edge 4, and then normal milling begins.

[0026] A plurality of positioning blocks 8 are arranged on the middle part of the base 1 preventing the outer shell 3. The shape and size of the positioning blocks 8 match the size of the keyboard key grid on the middle keyboard surface of the outer shell 3. The corresponding keyboard key grid is placed according to the positioning blocks 8, so that the outer shell 3 can be placed and installed conveniently and accurately.

[0027] In addition to the positioning block 8, a pressure plate positioning rod 9 and a fixing rod 10 are also provided on the base 1, wherein the pressure plate positioning rod 9 is a round-headed columnar structure, which passes through the keyboard key grid and corresponds to the positioning hole 11 on the pressure plate 2 when the housing 3 is installed. The fixing rod 10 is a rotatable T-shaped structure, and since the crossbar portion at the top of the fixing rod 10 is relatively large, the position of the fixing rod 10 corresponds to the wider keyboard key grids and touchpad on the keyboard surface of the housing 3, and can also smoothly pass through the housing 3 when the housing 3 is placed.

[0028] The pressing plate 2 covers the middle part of the shell 3, pressing the shell 3 between the base 1 and the pressing plate 2, to prevent the shell 3 from bulging and deforming from the middle part when each push rod pushes the shell 3. At the bottom of the pressing plate 2, there are positioning holes 11 corresponding to the pressing plate positioning rod 9 and the fixing rod 10, respectively. The positioning hole matching the positioning rod 9 is an ordinary cylindrical groove, and the positioning hole 11 corresponding to the fixing rod 10 is a countersunk hole structure matching the top crossbar of the T-shaped structure of the fixing rod 10. The crossbar above the fixing rod 10 passes through the positioning hole 11, and then the crossbar part rotates to lock the pressing plate 2 on the base 1.

[0029] The outer part of the pressure plate 2 is thinner than the fixed part in the middle, and the height of its edge part is slightly lower than the height of the edge 4 of the shell, and it is also a short distance away from the edge of the shell 3. The overall size of the pressure plate 2 is slightly smaller than the size of the box-type structure of the shell 3. This design is mainly to avoid accidental contact between the pressure plate 2 and the cutter head when the milling machine cutter head processes the edge 4 of the shell, thereby damaging the cutter head.

[0030] In actual use, first place the shell 3 on the base 1 according to the position of the positioning block 8, then cover the pressure plate 2, rotate the fixing rod 10, fix the pressure plate 2, then start the extrusion push rod 5 and the positioning push rod 7, and further fix the shell 3 on the fixture. After the fixation is completed, the milling machine can be started to start milling.

Claims

1. A laptop keyboard fixing fixture, comprising a laptop keyboard shell, wherein the shell is a box-shaped structure with a plurality of keyboard grid holes in the middle and vertical edges around it, characterized in that: It also includes a base, a pressure plate and a positioning push rod. The base is provided with a positioning block, and the shape and size of the positioning block match the keyboard grid in the middle of the shell. A fixed blocking rod is provided on one side of the base, and an extrusion push rod is provided on the other side of the base where the blocking rod is provided. The shell is arranged between the blocking rod and the extrusion push rod. A positioning push rod is provided on one side of the base located at the top of the shell, and a limit block matching the side hole of the shell is provided on the contact surface between the positioning push rod and the shell. The pressure plate covers the middle of the shell and can be fixed to the base.

2. A laptop computer keyboard surface fixing fixture according to claim 1, characterized in that: The size of the pressing plate is smaller than the size of the space in the center of the shell, and the edge height of the pressing plate is lower than the height of the erected portion of the edge of the shell.

3. The laptop keyboard surface fixing fixture according to claim 1, characterized in that: The contact surfaces of the blocking rod and the extrusion push rod with the shell are arc-shaped structures matching the vertical edges of the shell.

4. The laptop keyboard surface fixing fixture according to claim 1, characterized in that: The extrusion push rod and the positioning push rod are both pushed by cylinders.

5. The laptop keyboard surface fixing fixture according to claim 1, characterized in that: The base is provided with a pressing plate positioning rod and a fixing rod, and the pressing plate is provided with a positioning hole matching with the pressing plate positioning rod and the fixing rod.

6. The laptop keyboard surface fixing fixture according to claim 5, characterized in that: The fixing rod is a rotatable T-shaped structure, and the positioning hole on the pressing plate that matches the fixing rod is a countersunk hole structure that matches the fixing rod.

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