CN110366325B - Crimping device and method for PCB (printed circuit board) connector - Google Patents
Crimping device and method for PCB (printed circuit board) connector Download PDFInfo
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- CN110366325B CN110366325B CN201910683082.7A CN201910683082A CN110366325B CN 110366325 B CN110366325 B CN 110366325B CN 201910683082 A CN201910683082 A CN 201910683082A CN 110366325 B CN110366325 B CN 110366325B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/10189—Non-printed connector
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- Microelectronics & Electronic Packaging (AREA)
- Manufacturing Of Electrical Connectors (AREA)
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Abstract
The invention relates to a crimping device and a crimping method for a PCB connector, and relates to the technical field of machining. The invention solves the problem of crimping of a novel fisheye-shaped connector contact pin, a crimping machine is used for segmented crimping with a specified stroke during crimping, a crimping device has a limiting function, and the limiting design is carried out in two directions of the length and the width of a plastic shell based on a connector base, so that the crimping is more accurate after the limitation is carried out on two degrees of freedom, and the crimping device can be ensured not to press the contact pin. The structure and the size of the crimping device are designed to ensure that the needle yield after crimping reaches 100%, the needle shrinkage phenomenon is avoided, the reliability is high through inspection and power-on test, and the required electrical property and mechanical property are ensured.
Description
Technical Field
The invention relates to the technical field of machining processing, in particular to a crimping device and method for a PCB (printed circuit board) connector.
Background
The electrical connector is a component mounted on a PCB (shown in fig. 4), is an indispensable part of an electronic device, and serves to bridge circuits that are originally isolated and non-conductive in the circuit, so as to circulate current, and to connect stably and provide high-reliability plugging times.
The conventional connector terminal portions are generally shaped as cylindrical pins with uniform pin directions, each connector is of equal length, and the connector crimping method is to crimp the respective connector units in sequence by a conventional crimping apparatus (as shown in fig. 5) to form a set of connector plugs.
The crimping of novel fisheye type contact pin connector (as shown in fig. 1) can't be with traditional crimping device (as shown in fig. 5) 100% extrusion of contact pin, can appear the needle phenomenon of contracting, and fisheye type connector plug is according to the difference of connector model and length difference (as shown in fig. 2 and fig. 3 for two kinds of fisheye type connector plugs), and a PCB board can comprise two kinds of fisheye type connector plugs of different length. And novel fisheye type connector is independent innovative domestic contact pin, does not use in a large number at present, so its installation use becomes a difficult problem, and the characteristics of this kind of connector are that fisheye type contact pin is wider than cylinder type contact pin, need set for the crimping stroke during the crimping and carry out spacing contact pin when guaranteeing the crimping can not pressed by the crimping ware mistake to the connector, and need increase more area of contact between crimping device and the PCB board to ensure that the contact pin of all directions all is pressed out. When the mounting directions of the pins of the fisheye-shaped connector are different (as shown in fig. 3), the two groups of pins at different positions are 90 degrees to each other, and the front row of pins has no stress supporting points, so that pin shrinkage is easily caused during compression joint. Based on this, it is necessary to design a new crimping apparatus and method for PCB board connectors.
Disclosure of Invention
Technical problem to be solved
The technical problem to be solved by the invention is as follows: how to realize the crimping device and the method for the PCB connector, which have more accurate crimping, no pin shrinkage and high reliability.
(II) technical scheme
In order to solve the technical problem, the invention provides a crimping device for a PCB connector, which comprises a first crimping module and a second crimping module, wherein the first crimping module is a crimping device for crimping DP2ATJE0700-000 connector plugs, the direction of the first crimping module A is a transverse slotted crimping device designed into a corresponding size according to the printed board opening size of a PCB, the slotted depth is designed according to the length of a contact pin and is 2-2.1 times of the length of the contact pin, the slotted width is 1.65-2.54 times of the distance between two holes in the printed board opening size, the slotted width of the first crimping module A is equal, the width of each slotted 21 of the first crimping module A is designed according to the distance between two holes in the opening size of the DP2ATJE0700-000 connector plugs on the PCB, and first limit baffles 22 are designed on two sides of the slotted 21 of the first crimping module A;
the second crimp module B is a crimp device for crimping a DP2ATJE1036-000 connector plug, the installation directions of the plug contact pins of the connector are different, two groups of contact pins in different directions are 90 degrees, the direction, the width and the size of the slot 31 of the second crimping module B are transversely and longitudinally combined slot crimping devices which are designed to have corresponding sizes according to the opening size of a printed board of a PCB and the direction of the contact pins, the slot depth is designed according to the length of the contact pins and is 2 to 2.1 times of the length of the contact pins, the slot width is 1.65 to 2.54 times of the distance between two holes in the opening size of the printed board, the slot width of device B is designed according to the two-hole pitch of the opening size of the DP2ATJE1036-000 connector plug on the PCB board, the slotting direction of the second crimping module B consists of the slotting directions in the transverse direction and the longitudinal direction, and meanwhile, second limiting baffles 32 are designed on two sides of a slot 31 of the second crimping module B.
Preferably, the depth of the slot 21 of the first crimping module a is 6 mm; the external dimensions of the first crimping module A are 72mm in length, 26.6mm in width and 38mm in height.
Preferably, the width of each slot 21 of the first crimp module a is 1.54 mm.
Preferably, the slotting depth of the second crimping module B is 6 mm; the external dimensions of the second crimping module B are 108mm in length, 26.6mm in width and 38mm in height.
Preferably, the width of the transverse slot in the second crimping module B is 1mm for each slot, and the width of the longitudinal slot in the second crimping module B is 1mm for each slot.
Preferably, the first limit baffle 22 is provided with a first circular through hole 23.
Preferably, a second circular through hole 33 is formed on the second limit baffle 32.
Preferably, the press-fitting device is made of 2A12 aluminum plates.
The invention also provides a crimping method for crimping a PCB provided with a fisheye-shaped connector by using the device, in the method, a DP2ATJE0700-000 connector plug is crimped firstly, then the DP2ATJE1036-000 connector plug is crimped, and a crimping stroke is set during two times of crimping, wherein when the DP2ATJE0700-000 connector plug is crimped, a first crimping module A is vertically assembled on the position of the PCB surface corresponding to the connector opening hole in an inserting manner, so that the corresponding position of the slotting 21 of the first crimping module A and the opening hole position 11 of the PCB is ensured to be corresponding, the first limit baffle 22 is clamped on the plastic shell of the connector base, the first limit baffle 22 is ensured to be attached to the plastic shell, and the crimping machine is used for setting the stroke for crimping; when the DP2ATJE1036-000 connector plug is in compression joint, the second compression joint module B is vertically inserted and assembled at the position, corresponding to the hole of the connector, of the surface of the PCB, the corresponding position of the groove 31 of the second compression joint module B and the hole position 11 of the PCB is ensured to be corresponding, the second limit baffle 32 is clamped on the plastic shell of the connector base, the second limit baffle 32 is attached to the plastic shell, and the compression joint is carried out by setting a stroke through a compression joint machine.
Preferably, the stroke relationship of the crimping machine is: h is 1.25 × (D + H + t), where H is the press machine stroke, D is the height of the first press module a or the second press module B, H is the distance from the PCB to the face of the first press module a or the second press module B, and t is the thickness of the PCB.
(III) advantageous effects
The invention solves the problem of crimping of a novel fisheye-shaped connector contact pin, a crimping machine is used for segmented crimping with a specified stroke during crimping, a crimping device has a limiting function, and the limiting design is carried out in two directions of the length and the width of a plastic shell based on a connector base, so that the crimping is more accurate after the limitation is carried out on two degrees of freedom, and the crimping device can be ensured not to press the contact pin. The structure and the size of the crimping device are designed to ensure that the needle yield after crimping reaches 100%, the needle shrinkage phenomenon is avoided, the reliability is high through inspection and power-on test, and the required electrical property and mechanical property are ensured.
Drawings
FIG. 1 is a fisheye terminal structure;
FIG. 2 is a schematic diagram of a DP2ATJE0700-000 connector plug;
FIG. 3 is a schematic diagram of a DP2ATJE1036-000 connector plug;
FIG. 4 is a schematic diagram of a PCB structure;
FIG. 5 is a schematic diagram of a conventional cylindrical pin crimping apparatus with the same pin direction;
FIG. 6 is a method of crimping a PCB board of the present invention;
FIG. 7 is a first crimp module A of the present invention;
FIG. 8 is a second crimp module B of the present invention;
FIG. 9 is a schematic diagram of a crimping stroke of the crimper.
Detailed Description
In order to make the objects, contents, and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention will be made in conjunction with the accompanying drawings and examples.
The invention provides a crimping device for crimping a PCB provided with a fisheye-shaped connector, which consists of a first crimping module A and a second crimping module B, wherein as shown in figure 7, the first crimping module A is a crimping device for crimping DP2ATJE0700-000 connector plugs, the directions of connector pins are uniform, the direction of the first crimping module A is a transverse slotted crimping device which is designed into a corresponding size according to the printed board opening size of the PCB, the slotted depth is designed according to the length of the pins and is 2-2.1 times of the length of the pins, the slotted width is 1.65-2.54 times of the distance between two holes in the printed board opening size, and the length of the DP2ATJE0700-000 connector plug pins is 3.05mm, so that the slotted 21 of the first crimping module A has the depth of 6mm, and the pins can be pulled out during crimping and cannot be pushed to the top of the crimping device; the external dimension of the first crimping module A is 72mm in length, 26.6mm in width and 38mm in height; the grooving widths of the first crimping module A are equal, the width of each grooving 21 of the first crimping module A is designed to be 1.54mm according to the distance between two holes of the opening size of the DP2ATJE0700-000 connector plug on the PCB, so that a contact pin can be ensured to be pressed out, compared with a traditional crimping device, the contact area between the crimping device and the PCB is increased, the pin outlet rate is ensured to reach 100%, meanwhile, first limiting baffles 22 are designed on two sides of each grooving 21, and first circular through holes 23 are formed in the first limiting baffles 22;
as shown in fig. 8, the second crimping module B is a crimping device for crimping a DP2ATJE1036-000 connector plug, the mounting directions of pins of the connector plug are different, two groups of pins in different directions are 90 degrees, the direction, width and size of the slot 31 of the second crimping module B are transversely and longitudinally combined slotted crimping devices designed to have corresponding sizes according to the printed board opening size of a PCB board and the direction of the pins, the slot depth is designed according to the pin length and is 2 to 2.1 times of the pin length, the slot width is 1.65 to 2.54 times of the distance between two holes in the printed board opening size, and since the pin length of the DP2ATJE1036-000 connector plug is 3.05mm, the slot depth of the second crimping module B is 6mm, which ensures that the pin can be taken out during crimping and cannot be pushed to the top of the crimping device; the external dimension of the second crimping module B is 108mm in length, 26.6mm in width and 38mm in height; the slotting width of the device B is designed according to the distance between two holes of the opening size of the DP2ATJE1036-000 connector plug on the PCB, wherein the slotting direction of the second crimping module B consists of the slotting directions in the transverse direction and the longitudinal direction, the transverse slotting width is 1mm for each slotting width, and the longitudinal slotting width is 1mm for each slotting width, so that a contact pin can be ensured to be extruded out, compared with the traditional crimping device, the contact area between the crimping device and the PCB is increased, the needle outlet rate is ensured to reach 100%, meanwhile, the second limiting baffle 32 is designed on two sides of the slotting 31, and the second circular through hole 33 is formed in the second limiting baffle 32.
The width and height of the first crimping module a and the second crimping module B can be increased, and the ratio of the length-width ratio to the width-width ratio of 1.43 is preferable because it is material-saving and meets the requirements of factory production, and the specific length thereof is specifically designed according to the length of the fisheye-type connector to be crimped, but it must meet (1) the stroke relationship of the crimping machine (as shown in fig. 9) as follows: h is 1.25 × (D + H + t), where H is a stroke of the press, D is a height of the first press module a or the second press module B, H is a distance from a surface of the first press module a or the second press module B facing the PCB to the PCB, and t is a thickness of the PCB, and the press effect is the best at this time; (2) as described above, the grooving depth of the crimping device is designed according to the length of the contact pin of the fisheye-shaped connector, and a large amount of test data show that the grooving depth is 2 to 2.1 times of the length of the contact pin, the needle yield after crimping reaches 100%, the contact pin can be pressed when the grooving is too shallow, the grooving is too deep, the crimping strength is affected, and the processing is not facilitated; (3) as described above, the width of the slot is 1.65 to 2.54 times the distance between two holes in the opening size of the printed board, and the slot width set based on the hole distance can make the largest area of contact between the crimping apparatus and the PCB board.
The device is the integral structure, and the material is 2A12 aluminum plate (hardness is high), and after carrying out the milling processing of overall dimension such as the high length and width of crimping device, for guaranteeing its crimping precision, carry out linear cutting (accurate to 0.01mm), wholly be aluminum plate integrated into one piece, other assembly combination modes such as no spiral shell dress welding have avoided the error that brings when the assembly. The design of limiting baffle plates (such as 22 and 32 in figures 7 and 8) is adopted on the limiting design of the device, the limiting baffle plates have a limiting function, the limiting design is carried out in two directions of length and width of a plastic shell based on a connector base, the limiting baffle plates can limit the plastic shell base part of a fisheye-shaped connector plug, the size of the limiting baffle plates is completely matched with that of the plastic shell base, the limiting baffle plates limit two degrees of freedom in the length direction and the width direction of the plastic shell, the limiting baffle plates are more accurate, a contact pin can be prevented from being pressed by a crimping device, the needle outlet rate reaches 100% after crimping, the needle retraction phenomenon does not exist, circular through holes (such as 23 and 33 in figures 7 and 8) are formed in the two ends of the limiting baffle plates, the mounting and the taking-down of the device are facilitated, and when the device is carried out and stored, the thread ropes on the through holes can be conveniently moved and stored.
The invention also provides a crimping method for crimping the PCB provided with the fisheye connector by using the crimping device, wherein in the method, the connector and the PCB are vertically assembled together in a plug-in manner according to the corresponding holes, then the connector is crimped in a sectional manner according to a specified stroke, a DP2ATJE0700-000 connector plug is crimped, and then the DP2ATJE1036-000 connector plug is crimped. The specific compression joint method comprises the following steps: the DP2ATJE0700-000 connector plug shown in the figure 2 is firstly crimped, then the DP2ATJE1036-000 connector plug shown in the figure 3 is crimped, the crimping stroke is set during two times of crimping, each connector plug is ensured to be crimped once, and the electrical property and the mechanical property of the connector plug are tested after the crimping is finished. When the DP2ATJE0700-000 connector plug shown in figure 2 is crimped, the first crimping module A is vertically inserted and assembled at the position, corresponding to the hole of the connector, of the surface of the PCB, the groove 21 of the first crimping module A is ensured to correspond to the corresponding position at the hole position 11 of the PCB, the first limiting baffle 22 is clamped on the plastic shell of the connector base, the first limiting baffle 22 is ensured to be attached to the plastic shell, and the crimping machine is used for setting the stroke for crimping; when the DP2ATJE1036-000 connector plug shown in FIG. 3 is crimped, the second crimping module B is vertically inserted and assembled at the position of the PCB corresponding to the opening of the connector, so that the corresponding position of the slot 31 of the second crimping module B and the opening position 11 of the PCB is ensured, the second limit baffle 32 is clamped on the plastic shell of the connector base, the second limit baffle 32 is ensured to be attached to the plastic shell, and the crimping machine is used for setting the stroke for crimping.
The crimping device has limit function owing to have limit baffle, and the length of the plastic casing based on the connector base carries out spacing design with two wide directions, carries out spacing back spacing more accurate to two degrees of freedom, can ensure that the crimping device can not press the contact pin, and the rate of withdrawing a needle after the crimping reaches 100%, does not have the phenomenon of shortening a needle, and through inspection and circular telegram test reliability height, electrical property and mechanical properties that have guaranteed its requirement.
The invention solves the problem of crimping of a novel fisheye-shaped connector pin, a crimping machine is used for segmented crimping with a specified stroke during crimping, a crimping device has a limiting function, and the length and width directions of a plastic shell based on a connector base are limited, so that the crimping is more accurate after the two degrees of freedom are limited, and the crimping device can be ensured not to press the pin. The structure and the size of the crimping device are designed to ensure that the needle yield after crimping reaches 100%, the needle shrinkage phenomenon is avoided, the reliability is high through inspection and power-on test, and the required electrical property and mechanical property are ensured.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The crimping device for the PCB connector is characterized by comprising a first crimping module and a second crimping module, wherein the first crimping module is used for crimping a DP2ATJE0700-000 connector plug, the direction of the first crimping module is a transverse slotting crimping device which is designed into a corresponding size according to the opening size of a printed board of a PCB, the slotting depth is designed according to the length of a contact pin and is 2-2.1 times of the length of the contact pin, the slotting width is 1.65-2.54 times of the distance between two holes in the opening size of the printed board, the slotting width of the first crimping module is equal, the width of each slotting (21) of the first crimping module is designed according to the distance between two holes in the opening size of the DP2ATJE0700-000 connector plug on the PCB, and meanwhile, first limiting baffles (22) are designed on two sides of the slotting (21) of the first crimping module;
the second crimping module is used for crimping a DP2ATJE1036-000 connector plug, the direction, the width and the size of a slot (31) of the second crimping module are transversely and longitudinally combined slotted crimping devices which are designed to be corresponding sizes according to the opening size of a printed board of a PCB and the direction of a contact pin, the slot depth is designed according to the length of the contact pin and is 2-2.1 times of the length of the contact pin, the slot width is 1.65-2.54 times of the distance between two holes in the opening size of the printed board, the slot width of the device is designed according to the distance between two holes in the opening size of the DP2ATJE1036-000 connector plug on the PCB, the slot direction of the second crimping module is composed of the slot directions in the transverse direction and the longitudinal direction, and second limit baffles (32) are designed on two sides of the slot (31) of the second crimping module.
2. Crimping device according to claim 1, characterized in that the depth of the slot (21) of the first crimping module is 6 mm; the first crimping module has the external dimensions of 72mm in length, 26.6mm in width and 38mm in height.
3. Crimping apparatus according to claim 2, characterized in that the width of each slot (21) of the first crimping module is designed to be 1.54 mm.
4. The crimping apparatus of claim 3, wherein the second crimp module has a 6mm depth of slot; the external dimensions of the second crimping module are 108mm in length, 26.6mm in width and 38mm in height.
5. The crimping apparatus of claim 4, wherein the second crimp module has transverse slots each having a width of 1mm and longitudinal slots each having a width of 1 mm.
6. Crimping device according to claim 1, characterized in that said first limit stop (22) is provided with a first circular through hole (23).
7. Crimping device according to claim 1, characterized in that said second limit stop (32) is provided with a second circular through hole (33).
8. The crimping apparatus of claim 1, wherein the material of the crimping apparatus is 2a12 aluminum sheet.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910683082.7A CN110366325B (en) | 2019-07-26 | 2019-07-26 | Crimping device and method for PCB (printed circuit board) connector |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910683082.7A CN110366325B (en) | 2019-07-26 | 2019-07-26 | Crimping device and method for PCB (printed circuit board) connector |
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| CN110366325A CN110366325A (en) | 2019-10-22 |
| CN110366325B true CN110366325B (en) | 2021-11-16 |
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| CN117148227A (en) * | 2022-05-23 | 2023-12-01 | 中兴智能科技南京有限公司 | Structure of measuring connector and PCB |
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| EP0838884A1 (en) * | 1996-10-23 | 1998-04-29 | Framatome Connectors International | Method for inserting an electric contact pin with an compliant attachment zone into a hole in a printed circuit board |
| US5761050A (en) * | 1996-08-23 | 1998-06-02 | Cts Corporation | Deformable pin connector for multiple PC boards |
| US7780483B1 (en) * | 2008-12-09 | 2010-08-24 | Anthony Ravlich | Electrical press-fit contact |
| CN202103961U (en) * | 2011-07-13 | 2012-01-04 | 国电南瑞科技股份有限公司 | Crimping device of PCB (printed circuit board) connector |
| CN203563268U (en) * | 2013-12-02 | 2014-04-23 | 重庆航天火箭电子技术有限公司 | Crimping device for printed-board contact-pin-type adapter |
| CN206323664U (en) * | 2016-12-29 | 2017-07-11 | 武汉数字工程研究所（中国船舶重工集团公司第七0九研究所） | A kind of compression bonding apparatus of the highly dense connector of welding-free type |
| CN107623200A (en) * | 2017-10-23 | 2018-01-23 | 安费诺（常州）高端连接器有限公司 | Orthogonal staggeredly crimping back panel connector |
-
2019
- 2019-07-26 CN CN201910683082.7A patent/CN110366325B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5761050A (en) * | 1996-08-23 | 1998-06-02 | Cts Corporation | Deformable pin connector for multiple PC boards |
| EP0838884A1 (en) * | 1996-10-23 | 1998-04-29 | Framatome Connectors International | Method for inserting an electric contact pin with an compliant attachment zone into a hole in a printed circuit board |
| US7780483B1 (en) * | 2008-12-09 | 2010-08-24 | Anthony Ravlich | Electrical press-fit contact |
| CN202103961U (en) * | 2011-07-13 | 2012-01-04 | 国电南瑞科技股份有限公司 | Crimping device of PCB (printed circuit board) connector |
| CN203563268U (en) * | 2013-12-02 | 2014-04-23 | 重庆航天火箭电子技术有限公司 | Crimping device for printed-board contact-pin-type adapter |
| CN206323664U (en) * | 2016-12-29 | 2017-07-11 | 武汉数字工程研究所（中国船舶重工集团公司第七0九研究所） | A kind of compression bonding apparatus of the highly dense connector of welding-free type |
| CN107623200A (en) * | 2017-10-23 | 2018-01-23 | 安费诺（常州）高端连接器有限公司 | Orthogonal staggeredly crimping back panel connector |
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| CN110366325A (en) | 2019-10-22 |
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