CN108161525B - Positioning method of electronic product shell - Google Patents
Positioning method of electronic product shell Download PDFInfo
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- CN108161525B CN108161525B CN201810011774.2A CN201810011774A CN108161525B CN 108161525 B CN108161525 B CN 108161525B CN 201810011774 A CN201810011774 A CN 201810011774A CN 108161525 B CN108161525 B CN 108161525B
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- positioning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
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- Mechanical Engineering (AREA)
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Abstract
The invention relates to a method for positioning an electronic product shell, which comprises the following steps: forming the metal blank into a prototype of the shell of the electronic product in a forging and pressing mode; the prototype of the electronic housing comprises: the product comprises a product main body and a positioning frame connected to the periphery of the product main body; a plurality of positioning grooves which are arranged in a concave manner are formed in the outer side wall of the positioning frame; the rudiment of the electronic product shell is placed on the positioning jig, the plurality of rotary compressing cylinders are arranged around the periphery of the rudiment of the electronic product shell, the pressing claws of the rotary compressing cylinders rotate to press downwards and stretch into the positioning grooves in a one-to-one correspondence mode, and the rudiment of the electronic product shell is compressed and positioned. Compared with the traditional method for pressing the lugs in the vertical direction, the positioning groove of the positioning method for the electronic product shell is arranged on the positioning frame, the positioning frame is tightly connected with the periphery of the product main body into a whole, the positioning frame is not easy to deform in the product processing process, the clamping precision of the product can be improved, and the yield of the product is improved.
Description
Technical Field
The invention relates to the technical field of processing of electronic products, in particular to a positioning method of an electronic product shell.
Background
The electronic product shell is a necessary part of the electronic product, and not only can protect internal elements of the electronic product, but also can play a decorative role. For the metal electronic product housing, a blank is generally formed by forging and pressing, and then the final product of the electronic product housing is obtained by performing finish machining through various machining procedures. In the processing process, the electronic product shell needs to be pressed and positioned. The conventional pressing and positioning manner is that a plurality of lugs arranged at intervals are formed on the periphery of an embryonic form of an electronic product shell during forging. The lugs are removed by milling after the electronic product housing is finished. The lug is arranged in an L-shaped sheet structure, one end of the lug is used as the extension of the periphery of the main body of the electronic product shell, and the other end of the lug extends outwards parallel to the middle plate area of the electronic product shell. When positioning, the pressing cylinder is adopted to press the lug from top to bottom. The disadvantage of this pressing and positioning method is that each lug is a part extending from the periphery of the electronic product housing, and therefore lacks its own supporting force, and during the operation, the lug is easy to deform, which reduces the clamping precision of the product, and further leads to a reduction in the yield of the product.
Disclosure of Invention
Based on the above, the invention provides a positioning method of an electronic product shell, compared with the traditional method of pressing a lug in the vertical direction, the positioning groove is arranged on the positioning frame, and the positioning frame is tightly connected with the periphery of a product main body into a whole, so that the positioning frame is not easy to deform in the product processing process, the clamping precision of the product can be improved, and the yield of the product can be improved.
A positioning method of an electronic product shell comprises the following steps:
forming the metal blank into a prototype of the shell of the electronic product in a forging and pressing mode; the prototype of the electronic housing comprises: the product comprises a product main body and a positioning frame connected to the periphery of the product main body;
a plurality of positioning grooves which are arranged in a concave manner are formed in the outer side wall of the positioning frame;
the rudiment of the electronic product shell is placed on the positioning jig, the plurality of rotary compressing cylinders are arranged around the periphery of the rudiment of the electronic product shell, the pressing claws of the rotary compressing cylinders rotate to press downwards and stretch into the positioning grooves in a one-to-one correspondence mode, and the rudiment of the electronic product shell is compressed and positioned.
According to the positioning method of the electronic product shell, when the prototype of the electronic product shell is formed by forging and pressing, the positioning frame is formed on the periphery of the product main body, and the outer side wall of the positioning frame is provided with a plurality of positioning grooves which are arranged in an inwards concave manner. When the prototype of the electronic product shell is processed, the pressing claw of the rotary pressing cylinder is screwed into the positioning groove in the left and right directions and presses the positioning frame, so that the prototype of the whole electronic product shell is pressed and positioned. Compared with the traditional method for compressing the lugs in the vertical direction, the method for compressing and positioning the lugs in the vertical direction has the advantages that the positioning grooves are formed in the positioning frame, the positioning frame is tightly connected with the periphery of the product main body into a whole, the positioning frame is not prone to deformation in the product processing process, the clamping precision of products can be improved, and the yield of the products is improved.
In one embodiment, the prototype of the electronic enclosure further comprises: an inner cavity positioning column connected to the bottom surface of the product main body; the inner cavity positioning column is used for being matched with the positioning column on the positioning jig so as to improve the positioning precision.
In one embodiment, the positioning frame comprises: a thickened part connected to the inner side of the periphery of the product main body and a positioning part connected with the thickened part; the positioning groove is arranged on the positioning part; the positioning part is arranged along the extension direction of the periphery of the product main body, and the thickness of the positioning part is not less than the sum of the thicknesses of the thickened part and the periphery of the product main body. The thickening portion can strengthen the peripheral structure steadiness of product main part, and the thickness of location portion is not less than the sum of the thickness of thickening portion and product main part periphery, can let the product main part be difficult to warp because the atress of processing man-hour on the one hand, and on the other hand can guarantee that the locating frame is difficult to warp when compressing tightly the location.
In one embodiment, the positioning portion is further provided with a protrusion at an edge of the positioning groove. Protruding portion is used for the rotatory pressure claw that compresses tightly the cylinder of cooperation, also can increase the area of contact between locating frame and the pressure claw simultaneously, and the reinforcing compresses tightly the steadiness of location.
In one embodiment, the sum of the width of the protruding part and the depth of the positioning groove is not less than 1.0mm, so that the positioning frame has enough contact area with the pressing claw of each rotary pressing cylinder, and the pressing positioning stability is improved.
In one embodiment, the height of the positioning groove is not less than 1.5mm, and the positioning groove ensures that enough height space is provided for the pressing claw of the rotary pressing cylinder to be screwed in and pressed, so that the convenience of operation and the positioning stability are improved.
In one embodiment, the inner wall of the positioning groove includes: the first arc-shaped section, the straight line section and the second arc-shaped section are connected in sequence; the first arc-shaped section and the second arc-shaped section are arranged in an axisymmetric manner by taking a perpendicular bisector of the straight line section as an axis. During operation, the pressing claw of the rotary pressing cylinder can be screwed into the positioning groove from the first arc-shaped section or the second arc-shaped section, and finally, a pressing point of the pressing claw falls on the straight line section along with the rotation of the pressing claw.
In one embodiment, the first arcuate segment and the second arcuate segment are 1/4 arcs. 1/4 the circular arc is designed to facilitate the pressing claw of the rotary pressing cylinder to be screwed into the positioning groove.
In one embodiment, the length of the straight line section is greater than the width of the pressing claw of the rotary pressing cylinder, and the difference between the length of the straight line section and the width of the pressing claw of the rotary pressing cylinder is not less than 0.5 mm. The length of the straight line section is larger than the width of a pressing claw of the rotary pressing cylinder, so that the pressing claw is favorably prevented from being clamped between the straight line section and the first arc-shaped section or the second arc-shaped section.
In one embodiment, the end of the pressing claw of the rotary pressing cylinder is provided with an L-shaped step part. The step portion of the L shape of the tip of pressing the claw is favorable to matching the shape of constant head tank, and the reinforcing compresses tightly the precision and the stability of location.
Drawings
Fig. 1 is a schematic diagram of an electronic product housing prototype in a positioning method of the electronic product housing according to an embodiment of the invention;
FIG. 2 is a schematic diagram of another perspective of the embryonic form of the electronic housing shown in FIG. 1;
FIG. 3 is an enlarged schematic view of portion A of the prototype of the housing of the electronic product shown in FIG. 1;
FIG. 4 is a partial cross-sectional view of an embryonic form of the electronics housing shown in FIG. 1;
FIG. 5 is an enlarged schematic view of portion B of the prototype of the housing of the electronic product shown in FIG. 4;
FIG. 6 is a schematic diagram of the assembly of the prototype of the housing of the electronic device shown in FIG. 1 and the rotary compressing cylinder;
FIG. 7 is a schematic diagram of the electronic device housing shown in FIG. 6, illustrating another perspective of the housing and the rotary compressing cylinder;
FIG. 8 is an enlarged view of a portion C of the blank of the housing of the electronic device and the rotary hold-down cylinder shown in FIG. 6;
the meaning of the reference symbols in the drawings is:
100-rudimentary form of electronic product housing;
10-a product body;
20-a positioning frame, 21-a thickened part, 22-a positioning part, 23-a positioning groove and 24-a protruding part;
30-inner cavity positioning columns;
40-rotating pressing cylinder and 41-pressing claw.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Fig. 1 to 8 are schematic diagrams illustrating a positioning method for an electronic product housing according to the embodiment.
A positioning method of an electronic product shell comprises the following steps:
s10: the metal blank is formed into an embryonic form 100 of the housing of the electronic product by forging. The prototype of the electronic housing 100 comprises: a product body 10 and a positioning frame 20 attached to the periphery of the product body 10. Wherein, the positioning frame 20 includes: a thickened portion 21 connected to the inside of the peripheral edge of the product main body 10 and a positioning portion 22 connecting the thickened portion 21. The positioning portion 22 is provided along the extending direction of the peripheral edge of the product main body 10, and the thickness of the positioning portion 22 is not less than the sum of the thickness of the thickened portion 21 and the peripheral edge of the product main body 10. In this step, the product body 10 and the positioning frame 20 are integrally formed at the time of forging. The product body 10 is used as the area where the final product of the electronic product housing is located, and the positioning frame 20 is used for cooperating with the pressing claw 41 of the rotary pressing cylinder 40 to press and position the prototype 100 of the whole electronic product housing. Furthermore, the thickened portion 21 can enhance the structural stability of the periphery of the product main body 10, and the thickness of the positioning portion 22 is not less than the sum of the thicknesses of the thickened portion 21 and the periphery of the product main body 10, so that the product main body 10 is not easy to deform due to the stress during processing, and the positioning frame 20 is not easy to deform during pressing and positioning.
In this embodiment, the prototype 100 of the housing of the electronic product further comprises: an inner cavity positioning column 30 connected to the bottom surface of the product main body 10. The inner cavity positioning column 30 is used for matching with a positioning column on the positioning jig so as to improve the positioning precision. The inner cavity positioning post 30 may be formed during the forging process or may be attached to the bottom surface of the product main body 10 after the forging process, wherein the inner cavity positioning post 30 is preferably formed during the forging process.
S20: a plurality of positioning grooves 23 are formed on the outer side wall of the positioning frame 20. In this embodiment, the positioning slot 23 is a crescent structure. The positioning groove 23 is milled on the outer side wall (i.e. the side opposite to the inner cavity of the product body 10) of the positioning portion 22 by a milling cutter of a numerical control machine tool, the rotation speed of the milling cutter can be controlled to be 4000-6000 revolutions per minute, and the rotation speed can be controlled to be 3800-4200 revolutions per minute during milling. The height of the positioning groove 23 is not less than 1.5mm, and it is ensured that there is enough height space for the pressing claw 41 of the rotary pressing cylinder 40 to be screwed in and pressed, so that the convenience of operation and the positioning stability are improved. In the present embodiment, the inner wall of the positioning groove 23 includes: the first arc-shaped section, the straight line section and the second arc-shaped section are connected in sequence. The first arc-shaped section and the second arc-shaped section are arranged in an axisymmetric manner by taking a perpendicular bisector of the straight line section as an axis. In operation, the pressing claw 41 of the rotary pressing cylinder 40 can be screwed into the positioning groove 23 from the first arc section or the second arc section (i.e. the pressing claw 41 of the rotary pressing cylinder 40 can be left-handed or right-handed to enter the positioning groove 23), and as the pressing claw 41 rotates, the pressing point of the pressing claw 41 finally falls on the straight line section. It is understood that in other embodiments, one of the first arc-shaped segment or the second arc-shaped segment of the inner wall of the positioning slot 23 can be omitted, and the worker can set the rotary compacting cylinder 40 to rotate left or right according to the position of the arc-shaped segment.
In this embodiment, the first arcuate segment and the second arcuate segment are the 1/4 arcs. 1/4, the circular arc design facilitates the pressing claw 41 of the rotary pressing cylinder 40 to be screwed into the positioning slot 23. Further, the length of the straight line segment is larger than the width of the pressing claw 41 of the rotary pressing cylinder 40, and the difference between the length of the straight line segment and the width of the pressing claw 41 of the rotary pressing cylinder 40 is not less than 0.5 mm. The length of the straight line section is larger than the width of the pressing claw 41 of the rotary pressing cylinder 40, so that the pressing claw 41 is beneficial to avoiding being clamped between the straight line section and the first arc-shaped section or the second arc-shaped section.
In the present embodiment, the positioning portion 22 is further provided with a protrusion 24 at the edge of the positioning groove 23. The protruding part 24 is used for cooperating with the pressing claw 41 of the rotating pressing cylinder 40, and simultaneously, the contact area between the positioning frame 20 and the pressing claw 41 can be increased, and the stability when the pressing claw 41 presses the positioning part 22 is enhanced. Further, the sum of the width of the protruding portion 24 and the depth of the positioning groove 23 is not less than 1.0mm, so that the positioning frame 20 and the pressing claw 41 of each rotary pressing cylinder 40 have sufficient contact area, and the stability of pressing and positioning is improved.
S30: the prototype 100 of the electronic product shell is placed on the positioning jig, the plurality of rotary compressing cylinders 40 are arranged around the periphery of the prototype 100 of the electronic product shell, the pressing claws 41 of the rotary compressing cylinders 40 rotate to press downwards and correspondingly extend into the positioning grooves 23 one by one, and the prototype 100 of the electronic product shell is compressed and positioned. The pressing force of the rotary pressing cylinder 40 can be controlled to be 392N-588N.
In the present embodiment, the end of the pressing claw 41 of the rotary pressing cylinder 40 is provided with an L-shaped step. The L-shaped step part at the end of the pressing claw 41 is beneficial to matching the shape of the positioning groove 23, and the precision and the stability of the pressing positioning are enhanced.
It should be noted that, after the electronic product housing is processed, the positioning frame 20 is milled by the milling cutter.
In the method for positioning the electronic product housing, when the prototype 100 of the electronic product housing is forged and formed, the positioning frame 20 is formed on the periphery of the product main body 10, and the outer side wall of the positioning frame 20 is provided with a plurality of positioning grooves 23 which are arranged in a concave manner. When the blank 100 of the electronic product housing is processed, the pressing claw 41 of the pressing cylinder 40 is rotated to screw into the positioning groove 23 in the left-right direction and press the positioning frame 20, so that the whole blank 100 of the electronic product housing is pressed and positioned. Compared with the traditional method for compressing the lugs in the vertical direction, the method for compressing and positioning the lugs in the vertical direction has the advantages that the positioning grooves 23 are formed in the positioning frame 20, the positioning frame 20 and the periphery of the product main body 10 are tightly connected into a whole, the positioning frame 20 is not prone to deformation in the product processing process, the clamping precision of products can be improved, and the yield of the products is improved.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only express preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (8)
1. A method for positioning an electronic product shell is characterized in that: the method comprises the following steps:
forming the metal blank into a prototype of the shell of the electronic product in a forging and pressing mode; the prototype of the electronic product housing comprises: the product comprises a product main body and a positioning frame connected to the periphery of the product main body; the positioning frame includes: a thickened portion connected to the inner side of the periphery of the product main body and a positioning portion connected to the thickened portion; the positioning part is arranged along the extension direction of the periphery of the product main body, and the thickness of the positioning part is not less than the sum of the thicknesses of the thickened part and the periphery of the product main body;
a plurality of positioning grooves which are arranged in a concave manner are formed in the outer side wall of the positioning frame; the positioning groove is formed in the positioning part; the inner wall of constant head tank includes: the first arc-shaped section, the straight line section and the second arc-shaped section are connected in sequence; the first arc-shaped section and the second arc-shaped section are arranged in an axisymmetric manner by taking a perpendicular bisector of the straight line section as an axis;
the rudiment of the electronic product shell is placed on a positioning jig, a plurality of rotary compressing cylinders are arranged around the periphery of the rudiment of the electronic product shell, and pressing claws of the rotary compressing cylinders rotate to press downwards and stretch into the positioning grooves in a one-to-one correspondence mode to compress and position the rudiment of the electronic product shell.
2. The method of claim 1, wherein the electronic housing prototype further comprises: the inner cavity positioning column is connected to the bottom surface of the product main body; the inner cavity positioning column is used for being matched with the positioning column on the positioning jig so as to improve the positioning precision.
3. The method for positioning an electronic product housing according to claim 1, wherein the positioning portion is further provided with a protrusion located at an edge of the positioning groove.
4. The method as claimed in claim 3, wherein the sum of the width of the protrusion and the depth of the positioning groove is not less than 1.0 mm.
5. The method as claimed in claim 1, wherein the height of the positioning groove is not less than 1.5 mm.
6. The method of claim 1, wherein the first arc segment and the second arc segment are 1/4 arcs.
7. The method as claimed in claim 1, wherein the length of the straight line segment is greater than the width of the pressing claw of the rotary pressing cylinder, and the difference between the length of the straight line segment and the width of the pressing claw of the rotary pressing cylinder is not less than 0.5 mm.
8. The method of claim 1, wherein an end of the pressing claw of the rotary pressing cylinder is provided with an L-shaped step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810011774.2A CN108161525B (en) | 2018-01-05 | 2018-01-05 | Positioning method of electronic product shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810011774.2A CN108161525B (en) | 2018-01-05 | 2018-01-05 | Positioning method of electronic product shell |
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| Publication Number | Publication Date |
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| CN108161525A CN108161525A (en) | 2018-06-15 |
| CN108161525B true CN108161525B (en) | 2020-01-10 |
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| CN201810011774.2A Active CN108161525B (en) | 2018-01-05 | 2018-01-05 | Positioning method of electronic product shell |
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| CN204517886U (en) * | 2015-04-09 | 2015-07-29 | 深圳市梦之坊通信产品有限公司 | Metallic mobile phone shell |
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| CN206611472U (en) * | 2017-02-21 | 2017-11-03 | 广东四象智能制造股份有限公司 | A kind of mobile phone shell for being easy to positioning to process |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3531766C1 (en) * | 1985-09-06 | 1989-07-20 | Honsberg Gmbh Geb | Clamping device for workpieces |
| US4778163A (en) * | 1987-07-31 | 1988-10-18 | Spear Larry R | Air actuated clamp |
| KR20120076405A (en) * | 2010-12-29 | 2012-07-09 | 현대중공업 주식회사 | Press apparatus to fix drilling work |
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2018
- 2018-01-05 CN CN201810011774.2A patent/CN108161525B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204517886U (en) * | 2015-04-09 | 2015-07-29 | 深圳市梦之坊通信产品有限公司 | Metallic mobile phone shell |
| CN205008926U (en) * | 2015-09-29 | 2016-02-03 | 广东长盈精密技术有限公司 | Clamp |
| CN106002396A (en) * | 2016-06-08 | 2016-10-12 | 广东长盈精密技术有限公司 | Fixture and positioning mechanism thereof |
| CN205834840U (en) * | 2016-07-29 | 2016-12-28 | 商丘金振源电子科技有限公司 | A kind of processing jig of mobile phone frame inner chamber |
| CN206084521U (en) * | 2016-09-26 | 2017-04-12 | 兴科电子科技有限公司 | Construction improvement compresses tightly tool |
| CN206611472U (en) * | 2017-02-21 | 2017-11-03 | 广东四象智能制造股份有限公司 | A kind of mobile phone shell for being easy to positioning to process |
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