Automatic cover plate clamping clamp for notebook computer bottom plate

Abstract

The utility model discloses a notebook computer bottom plate automatic clamping cover plate clamp which is characterized by comprising a lower bottom plate, an upper bottom plate, a clamp base and a clamp cover plate, the upper bottom plate is arranged on the lower bottom plate through supporting columns, the clamp base is arranged on the top face of the upper bottom plate, and the clamp cover plate is arranged on the clamp base. The clamp cover plate is placed on the top face of the clamp base in a right-facing mode, a cover plate grabbing device is arranged on one side of the lower bottom plate, and a plurality of vacuum adsorption holes are evenly distributed in the clamp base and used for adsorbing a notebook computer bottom plate and the clamp cover plate. The fixture has the advantages that the fixture is simple in structure, the notebook computer bottom plate can be well attached and pressed, operation of a cutter is not affected due to the fact that the periphery is not shielded during machining, the fixture cover plate is automatically clamped during part replacement, and part installation is convenient.

Description

Technical Field

[0001] The utility model relates to the field of machining fixtures, in particular to an automatic clamping cover fixture for a notebook bottom plate. Background Art

[0002] Most of the existing notebook bottom plates and housings are made of aluminum alloy. Therefore, the notebook bottom plate is formed by aluminum alloy die-casting and then undergoes surface finishing through machining. In particular, the four peripheral edges of the notebook bottom plate need to be milled. The existing fixture needs to clamp the notebook bottom plate at multiple positions to prevent it from deforming. However, the existing fixture alternately compresses through multiple pressing cylinders to avoid the movement of the tool, and its structure is complex, and it is inconvenient to clamp parts. Summary of the Invention

[0003] Aiming at the deficiencies in the above-mentioned prior art, the utility model provides an automatic clamping cover fixture for a notebook bottom plate, which has a simple structure, is convenient for clamping, and can prevent the workpiece from deforming.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] An automatic clamping cover fixture for a notebook bottom plate, characterized in that: it includes a lower bottom plate, an upper bottom plate, a fixture base, and a fixture cover. The upper bottom plate is arranged on the lower bottom plate through support columns. The fixture base is arranged on the top surface of the upper bottom plate. The fixture cover is placed opposite to the top surface of the fixture base. A cover grabbing device is arranged on one side of the lower bottom plate. The cover grabbing device includes a lifting cylinder arranged on the lower bottom plate. An installation plate is arranged at the front end of the cylinder rod of the lifting cylinder. A lever cylinder is arranged on the installation plate. A guide seat is arranged on the installation plate. The front end of the piston rod of the lever cylinder is hinged to a first chain plate. The upper end of the first chain plate is hinged to a second chain plate. The upper end of the second chain plate is hinged to a pressing arm. A hinge seat is arranged on the cylinder body of the lever cylinder. The pressing arm has a support seat hinged to the hinge seat. Multiple positioning holes are arranged at the cantilever end of the pressing arm. A rotating cylinder is arranged at the cantilever end of the pressing arm. A limiting block is arranged at the front end of the piston rod of the rotating cylinder. Multiple positioning blocks are arranged on the fixture cover. Positioning pins corresponding to the positioning holes are arranged on the positioning blocks. A hanging platform corresponding to the limiting block is arranged on the fixture cover.

[0006] Further, a plurality of vacuum adsorption holes are evenly distributed on the fixture base for adsorbing the notebook bottom plate and the fixture cover.

[0007] Further, the number of the lifting cylinders is two, and the lifting cylinders are double-rod cylinders.

[0008] Further, a guiding groove is provided on the guiding seat, and the hinge points of the first chain plate and the second chain plate are limited within the guiding groove.

[0009] The beneficial effects of the present utility model include: the fixture has a simple structure, can well fit and press the bottom plate of the notebook, there is no obstruction around during processing and it will not affect the operation of the cutting tool, the fixture cover plate can be automatically clamped when changing parts, and it is convenient to install parts. Description of the Drawings

[0010] Figure 1 is a schematic structural view of the present utility model;

[0011] Figure 2 is a longitudinal sectional view of the present utility model;

[0012] Figure 3 is a schematic top view structure of the fixture cover plate in the present utility model. Detailed Description of the Embodiment

[0013] The present utility model will be further described in detail below in conjunction with specific embodiments and the drawings.

[0014] A fixture for automatically clamping a cover plate of a notebook bottom plate as Figures 1-3 shown, includes a lower bottom plate 1, an upper bottom plate 2, a fixture base 3, and a fixture cover plate 4. Among them, the upper bottom plate 2 is arranged on the lower bottom plate 1 through a support column 5. The fixture base 3 is arranged on the top surface of the upper bottom plate 2. The fixture cover plate 4 is placed opposite to the top surface of the fixture base 3. A plurality of vacuum adsorption holes are evenly distributed on the fixture base 3 for adsorbing the notebook bottom plate and the fixture cover plate 4. Thus, the notebook bottom plate can be clamped through the fixture cover plate 4 and the vacuum adsorption holes.

[0015] To facilitate the taking and placing of the fixture cover plate 4, a cover plate grasping device is arranged on one side of the lower bottom plate 1 of this embodiment. The cover plate grasping device includes a lifting cylinder 6 arranged on the lower bottom plate 1. The number of the lifting cylinders 6 is two, and the lifting cylinder 6 is a double-rod cylinder. The front end of the cylinder rod of the lifting cylinder 6 is provided with a mounting plate 7. A lever cylinder 8 is arranged on the mounting plate 7. The front end of the piston rod of the lever cylinder 8 is hinged and connected with a first chain plate 10. The upper end of the first chain plate 10 is hinged and connected with a second chain plate 11. The upper end of the second chain plate 11 is hinged with a pressing arm 12. A hinge seat 13 is arranged on the cylinder body of the lever cylinder 8. A support 14 for hinging with the hinge seat 13 is provided on the pressing arm 12. A guiding seat 9 is arranged on the mounting plate 7. A guiding groove 20 is provided on the guiding seat 9. The hinge points of the first chain plate 10 and the second chain plate 11 are limited within the guiding groove 20. This structure enables the pressing arm to be converted into a vertical and a horizontal transverse direction through the telescopic movement of the lever cylinder 8.

[0016] Further, a plurality of positioning holes 15 are provided at the cantilever end of the pressing arm 12, a rotary cylinder 16 is provided at the cantilever end of the pressing arm 12, and a limiting block 17 is provided at the front end of the piston rod of the rotary cylinder 16. A plurality of positioning blocks 18 are provided on the fixture cover plate 4, positioning pins corresponding to the positioning holes 15 are provided on the positioning blocks 18, and a hanging platform 19 corresponding to the limiting block 17 is provided on the fixture cover plate 4. When the fixture cover plate 4 is removed, the positioning holes 15 and the positioning pins are precisely positioned in cooperation, and the lifting cylinder 6 is retracted downward, so that the rotary cylinder 16 moves downward along with the pressing arm 12, and then the limiting block 17 moves downward to the same height as the hanging platform 19, and then the rotary cylinder 16 rotates, and the limiting block 17 contacts and limits the hanging platform 19.

[0017] The technical solutions provided by the embodiments of the present invention have been introduced in detail above. Specific examples are used herein to illustrate the principles and implementation manners of the embodiments of the present invention. The descriptions of the above embodiments are only applicable to help understand the principles of the embodiments of the present invention; at the same time, for those of ordinary skill in the art, according to the embodiments of the present invention, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. An automatic clamping cover fixture for a notebook bottom plate, characterized in that: It includes a lower base plate (1), an upper base plate (2), a fixture base (3), and a fixture cover plate (4). The upper base plate (2) is arranged on the lower base plate (1) through support columns (5). The fixture base (3) is arranged on the top surface of the upper base plate (2). The fixture cover plate (4) is placed opposite on the top surface of the fixture base (3). A cover plate grabbing device is arranged on one side of the lower base plate (1). The cover plate grabbing device includes a lifting cylinder (6) arranged on the lower base plate (1). The front end of the cylinder rod of the lifting cylinder (6) is provided with a mounting plate (7). A lever cylinder (8) is arranged on the mounting plate (7). A guide seat (9) is arranged on the mounting plate (7). The front end of the piston rod of the lever cylinder (8) is hinged to a first chain plate (10). The upper end of the first chain plate (10) is hinged to a second chain plate (11). The upper end of the second chain plate (11) is hinged to a pressing arm (12). A hinge seat (13) is arranged on the cylinder body of the lever cylinder (8). The pressing arm (12) has a support (14) hinged to the hinge seat (13). Multiple positioning holes (15) are arranged at the cantilever end of the pressing arm (12). A rotary cylinder (16) is arranged at the cantilever end of the pressing arm (12). The front end of the piston rod of the rotary cylinder (16) is provided with a limiting block (17). Multiple positioning blocks (18) are arranged on the fixture cover plate (4). A positioning pin corresponding to the positioning hole (15) is arranged on the positioning block (18). A hanging platform (19) corresponding to the limiting block (17) is arranged on the fixture cover plate (4).

2. The automatic clamping cover fixture for a notebook bottom plate according to claim 1, wherein: A plurality of vacuum adsorption holes are evenly distributed on the fixture base (3) for adsorbing the notebook bottom plate and the fixture cover plate (4).

3. The automatic clamping cover fixture for a notebook bottom plate according to claim 1, characterized in that: The number of the lifting cylinders (6) is two, and the lifting cylinders (6) are double-rod cylinders.

4. The automatic clamping cover fixture for a notebook bottom plate according to claim 1, characterized in that: The guide seat (9) has a guide groove (20), and the hinge points of the first chain plate (10) and the second chain plate (11) are limited in the guide groove (20).

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