CNC pressure riveting equipment, pressure riveting method, electronic equipment shell and electronic equipment

Abstract

The invention provides CNC pressure riveting equipment, a pressure riveting method, an electronic equipment shell and electronic equipment, the CNC pressure riveting equipment comprises a three-dimensional movement mechanism and an extrusion head, the extrusion head is connected with the three-dimensional movement mechanism, and the three-dimensional movement mechanism drives the extrusion head to perform spatial three-dimensional movement; and the extrusion head is used for extruding the side wall of the material to be riveted. According to the CNC press riveting equipment, the press riveting method, the electronic equipment shell and the electronic equipment, the shell made of the metal material and the connecting column can be riveted together, and the CNC press riveting equipment has the advantages of being high in machining precision, high in machining efficiency, low in machining cost and light in product weight.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical processing, and in particular to a CNC riveting device, a riveting method, an electronic equipment housing and an electronic equipment. Background Art

[0002] In the production process of laptop computers, it is necessary to form connecting columns (such as studs, rivets, etc.) on the notebook shell made of metal materials (such as aluminum materials) to connect with other parts. There are two ways to form connecting columns on the existing notebook shell made of metal materials: one is to glue the notebook shell and the built-in plastic bracket together, and the connecting column is provided on the built-in plastic bracket. In this method, the notebook shell and the built-in plastic bracket are glued together manually, which has the problems of low positioning accuracy and low production efficiency; the other is to directly form the connecting column by milling the metal plate. Although this method has high processing accuracy and efficiency, it also has the problems of high cost and heavy product.

[0003] Therefore, it is necessary to provide an improved technical solution to address the above-mentioned deficiencies in the prior art. Summary of the invention

[0004] The object of the present invention is to provide a CNC riveting device, which has the advantages of high processing accuracy, high processing efficiency, low processing cost and light product weight.

[0005] Another object of the present invention is to provide a CNC riveting method, which has the advantages of high processing accuracy, high processing efficiency, low processing cost and light product weight.

[0006] Another object of the present invention is to provide an electronic device housing and an electronic device having the electronic device housing, which have the advantages of high processing accuracy, high processing efficiency, low processing cost and light product weight.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] A CNC riveting device comprises a three-dimensional motion mechanism and an extrusion head, wherein the extrusion head is connected to the three-dimensional motion mechanism, and the three-dimensional motion mechanism drives the extrusion head to move three-dimensionally in space; the extrusion head is used to extrude the side wall of the material to be riveted.

[0009] According to one embodiment of the present invention, the CNC riveting equipment further includes a rotating mechanism, which is disposed on the three-dimensional motion mechanism; the extrusion head is connected to the rotating mechanism so that the extrusion head can rotate around the axis of the extrusion head.

[0010] According to one embodiment of the present invention, the extrusion head includes a plurality of cylindrical bodies connected in sequence from top to bottom, the diameters of the bodies gradually decrease from top to bottom, and the body located at the top is connected to the rotating mechanism.

[0011] According to one embodiment of the present invention, the end section of the body located at the bottom has rounded corners.

[0012] The present invention also provides a CNC riveting method, using the above-mentioned CNC riveting equipment, the CNC riveting method comprises the following steps:

[0013] Providing a material to be riveted, wherein a concave hole is provided on the surface of the material to be riveted, and an annular processing groove is provided on the outer periphery of the concave hole; a side wall is formed between the concave hole and the processing groove;

[0014] A connecting column is provided, wherein the connecting column comprises a column body and a fixing portion provided at one end of the column body; the diameter of the fixing portion is greater than the diameter of the column body;

[0015] placing the fixing portion of the connecting column into the concave hole;

[0016] Positioning the extrusion head in the processing tank;

[0017] The three-dimensional motion mechanism is controlled to drive the extrusion head to move along the processing groove, and at the same time, the side wall is extruded toward the column and covered on the outside of the fixing part.

[0018] According to one embodiment of the present invention, the extrusion head rotates around the axis of the extrusion head while moving along the processing groove.

[0019] According to one embodiment of the present invention, the extrusion head moves in the processing tank in a counterclockwise direction, and the extrusion head rotates in the counterclockwise direction;

[0020] Alternatively, the extrusion head moves in the processing groove in a clockwise direction, and the extrusion head rotates in the clockwise direction.

[0021] According to one embodiment of the present invention, when the extrusion head moves along the processing groove, the diameter of the movement trajectory gradually decreases and gradually moves upward;

[0022] And / or, the material to be riveted is an aluminum plate.

[0023] According to one embodiment of the present invention, the inner wall of the concave hole is provided with a first flat surface, so that the cross section of the concave hole is D-shaped; and the fixing portion is provided with a second flat surface corresponding to the first flat surface.

[0024] According to one embodiment of the present invention, the central angle corresponding to the first flat surface is 60 degrees;

[0025] And / or, when the extrusion head moves along the processing groove, one end of the first flat surface is used as a starting point and the other end of the first plane is used as an end point, so that the movement trajectory of the extrusion head is C-shaped.

[0026] The present invention also provides an electronic device shell, including a shell and a connecting column; a concave hole is provided on the surface of the shell, and an annular processing groove is provided on the outer periphery of the concave hole; a side wall is formed between the concave hole and the processing groove; the connecting column includes a column body and a fixing part provided at one end of the column body; the diameter of the fixing part is larger than the diameter of the column body; the fixing part is provided in the concave hole, and the side wall covers the outside of the fixing part.

[0027] The present invention also provides an electronic device, comprising the electronic device housing.

[0028] Compared with the prior art, the advantages and beneficial effects of the embodiments of the present invention are:

[0029] The CNC riveting equipment, riveting method, electronic device housing and electronic device provided by the embodiments of the present invention have the advantages of high processing accuracy and high processing efficiency because the fixing part adopts CNC numerical control to control the extrusion operation of the extrusion head. In addition, when forming a connecting column (such as a stud, a rivet, etc.) on a notebook housing made of metal material (such as aluminum sheet material), there is no need to manually bond a built-in plastic bracket on the notebook housing, which improves the processing accuracy and processing efficiency and reduces the weight of the product; there is no need to mill the entire metal plate to form the connecting column, which reduces the processing cost and product weight. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. Among them:

[0031] Figure 1 A schematic diagram of the structure of a CNC riveting device provided in an embodiment of the present invention;

[0032] Figure 2 A schematic diagram of the structure of an extrusion head of a CNC riveting device provided in an embodiment of the present invention;

[0033] Figure 3 A schematic diagram of the working state of the CNC riveting equipment provided by an embodiment of the present invention;

[0034] Figure 4 A schematic diagram of the connection between the material to be riveted and the connecting column in the CNC riveting method provided by an embodiment of the present invention;

[0035] Figure 5A schematic diagram of the structure of the material to be riveted in the CNC riveting method provided in an embodiment of the present invention;

[0036] Figure 6 A schematic diagram of the structure of a connecting column in a CNC riveting method provided by an embodiment of the present invention;

[0037] Figure 7 A schematic diagram of the motion trajectory of the extrusion head in the CNC riveting method provided in an embodiment of the present invention.

[0038] Description of reference numerals:

[0039] 1. Three-dimensional motion mechanism; 2. Extrusion head; 21. First body; 22. Second body; 23. Third body; 3. Material to be riveted; 31. Concave hole; 311. First flat surface; 32. Processing groove; 33. Side wall; 4. Connecting column; 41. Column; 42. Fixing part; 421. Second flat surface; 5. Rotation mechanism. DETAILED DESCRIPTION

[0040] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. Each example is provided by way of explanation of the present invention and does not limit the present invention. In fact, it will be clear to those skilled in the art that modifications and variations may be made in the present invention without departing from the scope or spirit of the present invention. For example, a feature shown or described as a part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desired that the present invention encompasses such modifications and variations within the scope of the appended claims and their equivalents.

[0041] In the description of the present invention, "first", "second" and similar words do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprising" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, but do not exclude other elements or objects. The directions or positional relationships indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. The terms "connected", "connected" and "set" used in the present invention should be understood in a broad sense. For example, they can be fixedly connected or detachably connected; they can be directly connected or indirectly connected through an intermediate component; they can be wired electrical connections, radio connections, or wireless communication signal connections. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0042] like Figure 1-Figure 3 As shown, an embodiment of the present invention provides a CNC riveting device, including a three-dimensional motion mechanism 1 and an extrusion head 2, wherein the extrusion head 2 is connected to the three-dimensional motion mechanism 1, and the three-dimensional motion mechanism 1 drives the extrusion head 2 to move three-dimensionally in space, and the extrusion head 2 is used to extrude the side wall 33 of the riveted material 3.

[0043] like Figure 3 As shown, the CNC riveting equipment provided by the embodiment of the present invention is different from the general CNC equipment in that the general CNC equipment drives the tool to move three-dimensionally in space through a three-dimensional motion mechanism, and then the tool performs cutting, punching and other processing on the workpiece. In the present invention, the three-dimensional motion mechanism 1 drives the extrusion head 2 to move three-dimensionally in space, and the extrusion head 2 is used to extrude (rather than cut) the side wall 33 of the material to be riveted 3 (a ductile metal, such as an aluminum plate) to rivet the connecting column 4 (such as a stud, a rivet, etc.) on the material to be riveted 3. For the riveting process, the CNC riveting equipment provided by the embodiment of the present invention provides a new riveting method, which uses the three-dimensional motion mechanism 1 of the CNC equipment to drive the extrusion head 2 to move, extrude the side wall 33 of the material to be riveted 3, and use the ductility of the metal to cover the side wall 33 on the fixing part 42 of the connecting column 4 to complete the riveting. Since the extrusion operation of the extrusion head is controlled by CNC (Computer Numerical Control) numerical control, it has the advantages of high processing accuracy and high processing efficiency. In addition, when forming connecting columns (such as studs, rivets, etc.) on a notebook case made of metal materials (such as aluminum materials), there is no need to manually bond a built-in plastic bracket to the notebook case, which improves processing accuracy and efficiency and reduces product weight; there is no need to mill the entire metal plate to form the connecting columns, which reduces processing costs and product weight.

[0044] In order to reduce the friction resistance of the extrusion head 2 when extruding the side wall 33 of the material to be riveted 3, as shown in FIG. Figure 1 As shown, in one embodiment of the present invention, the CNC riveting device further includes a rotating mechanism 5, which is disposed on the three-dimensional motion mechanism 1. The extrusion head 2 is connected to the rotating mechanism 5, so that the three-dimensional motion mechanism 1 drives the extrusion head 2 to move three-dimensionally in space, and the extrusion head 2 can be driven by the rotating mechanism 5 to rotate around the axis of the extrusion head 2. Specifically, the rotating mechanism 5 may include a fixture and a motor driving the fixture to rotate, and the extrusion head 2 is detachably connected to the fixture.

[0045] like Figure 2As shown, in one embodiment of the present invention, the extrusion head 2 includes a plurality of cylindrical bodies connected in sequence from top to bottom, the diameter of each body gradually decreases from top to bottom, and the body located at the top is connected to the rotating mechanism 5. The body with a large diameter in the upper half can keep the extrusion head 2 rigid, the body with a small diameter at the bottom is used to extrude the side wall 33 of the material 3 to be riveted, and the middle part is a transitional structure. Sometimes, if the connecting column 4 is too high, the intermediate transition is required to maintain rigidity. In this embodiment, the extrusion head 2 includes a cylindrical first body 21, a second body 22, and a third body 23 connected in sequence. The diameters of the first body 21, the second body 22, and the third body 23 decrease in sequence. The first body 21 (with the largest diameter) is connected to the rotating mechanism 5 to ensure the connection strength and stability. Further, in order to reduce the wear of the extrusion head 2 on the side wall 33 of the material 3 to be riveted, the end section of the body located at the bottom has a rounded corner. In this embodiment, the end section of the third body 23 has a rounded corner.

[0046] The CNC riveting equipment provided in the embodiment of the present invention also includes other necessary components for realizing CNC functions, such as a bed, a workbench, a workpiece fixture, a control mechanism, etc., which are prior arts and will not be described in detail.

[0047] like Figure 3 As shown, an embodiment of the present invention further provides a CNC riveting method, which utilizes the above-mentioned CNC riveting equipment, and the CNC riveting method includes the following steps:

[0048] A material 3 to be riveted (for example, an aluminum plate) is provided, wherein a concave hole 31 is provided on the surface of the material 3 to be riveted, and an annular processing groove 32 is provided on the outer periphery of the concave hole 31; a side wall 33 is formed between the concave hole 31 and the processing groove 32;

[0049] A connecting column 4 (such as a stud or a rivet) is provided, wherein the connecting column 4 comprises a column body 41 and a fixing portion 42 disposed at one end of the column body; the diameter of the fixing portion 42 is greater than the diameter of the column body 41;

[0050] Place the fixing portion 42 of the connecting column 4 into the recessed hole 31;

[0051] Positioning the extrusion head 2 in the processing groove 32;

[0052] The three-dimensional motion mechanism 1 is controlled to drive the extrusion head 2 to move along the processing groove 32 , and at the same time, the side wall 33 is extruded toward the column 41 and covered on the outside of the fixing portion 42 to complete the riveting.

[0053] The CNC riveting method provided by the embodiment of the present invention provides a new type of riveting process, which uses the three-dimensional motion mechanism 1 of the CNC equipment to drive the extrusion head 2 to move, extrude the side wall 33 of the riveted material 3, and use the ductility of the metal to cover the side wall 33 on the fixed part 42 of the connecting column 4 to complete the riveting. Since the extrusion operation of the extrusion head 2 is controlled by CNC (Computer Numerical Control), it has the advantages of high processing accuracy and high processing efficiency. In addition, when forming a connecting column (such as a stud, rivet, etc.) on a notebook shell made of metal material (such as aluminum sheet material), there is no need to manually bond a built-in plastic bracket on the notebook shell, which improves the processing accuracy and processing efficiency, and there is no need to mill the metal plate to form the connecting column, which reduces the processing cost and product weight. By using the CNC riveting method provided in the embodiment of the present invention to produce a notebook shell, the connecting column 4 can be directly "grown" on the aluminum plate, eliminating the bonding of the built-in plastic bracket, lowering the cost and increasing the processing accuracy; and because the built-in plastic bracket is eliminated, the weight of the notebook shell is lighter and the product stacking thickness is thinner; in addition, the present invention adopts CNC point probing processing, and the positioning accuracy is more accurate than the process of bonding the built-in plastic bracket.

[0054] In order to reduce the friction resistance of the extrusion head 2 when extruding the side wall 33 of the material 3 to be riveted, in one embodiment of the present invention, the extrusion head 2 rotates around the axis of the extrusion head 2 while moving along the processing groove 32. Preferably, the extrusion head 2 moves in the processing groove 32 in a counterclockwise direction and rotates in the counterclockwise direction; or, the extrusion head 2 moves in the processing groove 32 in a clockwise direction and rotates in the clockwise direction, that is, the movement direction of the extrusion head 2 in the processing groove 32 is the same as the rotation direction of the extrusion head 2. When the extrusion head 2 rotates, it will cause certain wear and tear on the side wall 33 of the material 3 to be riveted and generate debris. The movement direction of the extrusion head 2 in the processing groove 32 is the same as the rotation direction of the extrusion head 2, which can alleviate the problem of debris splashing outwards. In addition, the side wall 33 of the material 3 to be riveted can be squeezed more firmly and solidly.

[0055] In one embodiment of the present invention, when the extrusion head 2 moves along the processing groove 32, the diameter of the movement trajectory gradually decreases and gradually moves upward to form an ascending spiral, and the diameter of the spiral gradually decreases from bottom to top.

[0056] like Figure 4-Figure 6As shown, in order to prevent the connecting column 4 from rotating during the riveting process, in one embodiment of the present invention, the inner wall of the concave hole 31 is provided with a first flat surface 311, so that the cross section of the concave hole 31 is D-shaped. The fixing portion 42 is provided with a second flat surface 421 corresponding to the first flat surface 311, and the first flat surface 311 is in close contact with the second flat surface 421, so that the connecting column 4 can be prevented from rotating. Figure 7 As shown, in this embodiment, when the extrusion head 2 moves along the processing groove 32, one end of the first flat surface 311 is taken as the starting point and the other end of the first plane 311 is taken as the end point, so that the movement trajectory of the extrusion head 2 does not pass through the first flat surface 311 but is C-shaped. That is, the extrusion head 2 makes a plurality of C-shaped movements, and the diameter of the movement trajectory gradually decreases, and at the same time, the extrusion head 2 moves upward to gradually squeeze the side wall 33 of the material to be riveted 3 from bottom to top. Preferably, the central angle corresponding to the first flat surface 311 is 60 degrees. When the central angle is greater than 60 degrees, the coverage area of ​​the side wall 33 on the fixing portion 42 is small, and the riveting is not firm enough; and when the central angle is less than 60 degrees, the limiting effect on the connecting column 4 is insufficient, and the connecting column 4 is easy to rotate.

[0057] like Figure 3 As shown, in one embodiment of the present invention, the angle between the top surface of the fixing portion 42 and the column 41 is 120 degrees, which can take into account both the firmness of the riveting and the processing efficiency of extruding the side wall 33 of the material to be riveted 3: if the angle is too large, it will be difficult to rivet firmly; if the angle is too small, it will take longer time for the extrusion head 2 to extrude the side wall of the material to be riveted 3, affecting the processing efficiency.

[0058] The present invention also provides an electronic device housing, comprising a housing and a connecting column. The housing is formed by the material to be riveted 3, such as a notebook housing. Therefore, a concave hole is provided on the surface of the housing, and an annular processing groove is provided on the outer periphery of the concave hole, and a side wall is formed between the concave hole and the processing groove. The connecting column is the same as the above-mentioned connecting column 4, comprising a column body and a fixing portion provided at one end of the column body, and the diameter of the fixing portion is larger than the diameter of the column body. The fixing portion is provided in the concave hole, and the side wall is covered on the outside of the fixing portion to form a riveted connection.

[0059] The present invention also provides an electronic device, comprising the electronic device housing described above. The electronic device may be an electronic device with a metal housing, such as a notebook.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A CNC riveting equipment, characterized in that: The invention comprises a three-dimensional motion mechanism (1) and an extrusion head (2), wherein the extrusion head (2) is connected to the three-dimensional motion mechanism (1), and the three-dimensional motion mechanism (1) drives the extrusion head (2) to move three-dimensionally in space; the extrusion head (2) is used to extrude the side wall (33) of the material to be riveted (3).

2. The CNC riveting equipment according to claim 1, characterized in that: It also comprises a rotating mechanism (5), wherein the rotating mechanism (5) is arranged on the three-dimensional motion mechanism (1); the extrusion head (2) is connected to the rotating mechanism (5), so that the extrusion head (2) can rotate around the axis of the extrusion head (2).

3. The CNC riveting equipment according to claim 2, characterized in that: The extrusion head (2) comprises a plurality of cylindrical bodies connected in sequence from top to bottom, the diameters of the bodies gradually decreasing from top to bottom, and the body located at the top is connected to the rotating mechanism (5).

4. The CNC riveting equipment according to claim 3, characterized in that: The end section of the body located at the bottom has rounded corners.

5. A CNC riveting method, characterized in that: Utilizing the CNC riveting equipment according to any one of claims 1 to 4, the CNC riveting method comprises the following steps: A material (3) to be riveted is provided, wherein a concave hole (31) is provided on the surface of the material (3) to be riveted, and an annular processing groove (32) is provided on the outer periphery of the concave hole (31); a side wall (33) is formed between the concave hole (31) and the processing groove (32); A connecting column (4) is provided, wherein the connecting column (4) comprises a column body (41) and a fixing portion (42) arranged at one end of the column body (41); the diameter of the fixing portion (42) is greater than the diameter of the column body (41); Placing the fixing portion (42) of the connecting column (4) in the recessed hole (31); Positioning the extrusion head (2) in the processing groove (32); The three-dimensional motion mechanism (1) is controlled to drive the extrusion head (2) to move along the processing groove (32), and at the same time, the side wall (33) is extruded in the direction of the column (41) and wrapped around the outside of the fixing portion (42).

6. The CNC riveting method according to claim 5, characterized in that: The extrusion head (2) moves along the processing groove (32) and rotates around the axis of the extrusion head (2) at the same time.

7. The CNC riveting method according to claim 6, characterized in that: The extrusion head (2) moves in the processing groove (32) in a counterclockwise direction, and the extrusion head (2) rotates in the counterclockwise direction; Alternatively, the extrusion head (2) moves in the processing groove (32) in a clockwise direction, and the extrusion head (2) rotates in the clockwise direction.

8. The CNC riveting method according to claim 5, characterized in that: When the extrusion head (2) moves along the processing groove (32), the diameter of the movement track gradually decreases and moves upwards; And / or, the material to be riveted (3) is an aluminum plate.

9. The CNC riveting method according to any one of claims 5 to 8, characterized in that: The inner wall of the concave hole (31) is provided with a first straight surface (311), so that the cross section of the concave hole (31) is D-shaped; and the fixing portion (42) is provided with a second straight surface (421) corresponding to the first straight surface (311).

10. The CNC riveting method according to claim 9, characterized in that: The central angle corresponding to the first flat surface (311) is 60 degrees; And / or, when the extrusion head (2) moves along the processing groove (32), one end of the first straight surface (311) is used as the starting point and the other end of the first plane (311) is used as the end point, so that the movement trajectory of the extrusion head (2) is C-shaped.

11. An electronic device housing, characterized in that: It includes a shell and a connecting column; a concave hole is provided on the surface of the shell, and an annular processing groove is provided on the outer periphery of the concave hole; a side wall is formed between the concave hole and the processing groove; the connecting column includes a column body and a fixing part arranged at one end of the column body; the diameter of the fixing part is larger than the diameter of the column body; the fixing part is arranged in the concave hole, and the side wall covers the outside of the fixing part.

12. An electronic device, characterized in that: The electronic device housing comprises the electronic device housing according to claim 11.

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