CN105652178B - A kind of design method of flying probe tester movement girder construction - Google Patents
A kind of design method of flying probe tester movement girder construction Download PDFInfo
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- CN105652178B CN105652178B CN201410637061.9A CN201410637061A CN105652178B CN 105652178 B CN105652178 B CN 105652178B CN 201410637061 A CN201410637061 A CN 201410637061A CN 105652178 B CN105652178 B CN 105652178B
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Abstract
The present invention relates to printed circuit board test technical fields, disclose a kind of design method of flying probe tester movement girder construction.The design method first determines the length of movement beam bottom plate, thereby determine that the span of bottom plate both ends sliding block, and design the combining form of different sliding blocks, it is analyzed using combining form of the rigid multibody dynamics analysis method to every kind of sliding block, obtain the characteristic that girder construction is moved under every kind of sliding block combining form, select suitable sliding block combining form, and determine suitable floor structure, it modifies to the bottom plate of movement girder construction, it is allowed to meet performance and processing request, and movement girder construction is tested, to obtain the movement girder construction for meeting performance requirement.The present invention utilizes rigid multi-body dynamics power and flexible motion mechanical analyzing method, and the engaging portion to movement girder construction and movement beam bottom plate are analyzed and optimized respectively, can quickly and effectively design high performance movement girder construction.
Description
Technical field
The present invention relates to printed circuit board test technical fields, more specifically, in particular to a kind of flying probe tester fortune
The design method of dynamic girder construction.
Background technique
Flying probe tester be carry out PCB electric measurement important equipment, by with multiple electric motors and screw rod or other transmissions
The technology of component couples, and drives fast moving for measuring head, realizes that probe is contacted with pad or device pin and electrically surveyed
Amount.With the continuous development of electronic industry, the size of electronic product constantly reduces, this makes the wire sizes of pcb board increasingly
Small, density is higher and higher, and more stringent requirements are proposed for this performance to test equipment, i.e., faster locating speed and higher fixed
Position precision.
Currently, it is by CNC control, mechanical system, electric measuring system and other functions that the high speed of flying probe tester, height, which are refined,
Module is realized such as vision system.The wherein rigidity of the parameter of key structure such as engaging portion and the dynamic of damping, mechanism itself
Characteristic etc. has a great impact to the precision and efficiency of system.
Optimization for motion structure often relates to more parameter, also relates to of engaging portion and corresponding construction
With problem, entire optimization process is relatively complicated.Therefore a kind of quickly and effectively design optimization method is needed, quickly to design height
The structure of performance.
Summary of the invention
It is an object of the invention to be directed to technical problem of the existing technology, a kind of flying probe tester movement beam knot is provided
The design method of structure, using rigid multi-body dynamics power and flexible motion mechanical analyzing method, respectively to the engaging portion of movement girder construction
And movement beam bottom plate is analyzed and is optimized, and high performance movement girder construction can be quickly and effectively designed.
In order to solve posed problems above, the technical solution adopted by the present invention is：
A kind of design method of flying probe tester movement girder construction, the bottom plate both ends of the movement beam are respectively arranged with sliding block,
Beam is moved to cooperate by the X-axis guide rail on sliding block and flying probe tester；Specific step is as follows for the design method：
Step S1：According to range demands of the movement beam on flying probe tester, the length of movement beam bottom plate is determined, thus really
Determine the span of bottom plate both ends sliding block；
Step S2：According to determining bottom plate both ends sliding block span, pre-selected sliding block type and the movement beam of setting
The combining form of different sliding blocks is set out in structure total weight, establishes every kind of sliding block combination using rigid multibody dynamics analysis method
The analysis model of form obtains the characteristic that girder construction is moved under every kind of sliding block combining form；
Step S3：According to the characteristic for moving girder construction under every kind of obtained sliding block combining form, according to movement girder construction
Performance and economic indicator select two or more sliding block combining form；
Step S4：According to the sliding block combining form, movement girder construction total weight and the installation on flying probe tester determined
Constraint estimates the width and thickness of movement beam bottom plate, and step S1 is combined to determine the length for moving beam bottom plate, using flexible dynamic
The analysis model that analysis method establishes movement beam bottom plate is learned, the characteristic of movement beam bottom plate is obtained；
Step S5：According to the requirement of actual processing technique, movement beam bottom plate is optimized, is allowed to meet performance and processing
It is required that determining suitable movement beam bottom plate；
Step S6：The sliding block combining form of selection is separately mounted to obtain different movements on determining movement beam bottom plate
Girder construction tests every kind of movement girder construction, i.e., by it under acceleration driving, comparing motion girder construction driven end is opposite
The beat value of drive end, to obtain the movement girder construction for meeting performance requirement；If being unable to get the movement for meeting performance requirement
Girder construction, then return step S3, reselects sliding block combining form.
In the step S6, movement girder construction is tested, it is driven under 1g acceleration.
A kind of movement girder construction, flying probe tester include motor, bearing block and guide rail, the movement girder construction include bottom plate,
Second sliding block, third sliding block, Four-slider and the 5th sliding block；
The front upper portion of the bottom plate processes bearing mounting surface, and lower end processes motor mounting surface, on positive middle part
Guide pass is processed, the back side upper end of bottom plate is provided with the second sliding block, and it is sliding that third sliding block, Four-slider and the 5th is provided below
Block, third sliding block and Four-slider are horizontally disposed with and are arranged in parallel in above the 5th sliding block；Motor, bearing block and guide rail are set respectively
It sets on motor mounting surface, bearing mounting surface and guide pass.
The back side of the bottom plate is from top to bottom processed there are two groove, and the bottom surface of each groove is evenly equipped with groove.
Guide pass is also processed on the side perpendicular with front on the bottom plate.
Boss is extended outward to form with the opposite side lower of guide pass on the bottom plate, third sliding block is located at boss
On.
Pass through circular arc and chamfered transition, the side of lower end surface and bottom plate between the upper surface of the boss and the side of bottom plate
Between be arc transition.
The length of the third sliding block, Four-slider and the 5th sliding block is identical and less than the second sliding block.
Compared with prior art, the beneficial effects of the present invention are：
1, rigid multibody dynamics and flexible dynamics analysis method are used to carry out movement girder construction engaging portion in the present invention rigid
The optimization of degree and the optimization for moving beam bottom plate can be rapidly completed movement girder construction using rigid multibody dynamics analysis method and combine
The optimization of portion's rigidity is analyzed, and with the movement girder construction dynamic property of more different engaging portion rigidity, determines suitable sliding block combination
Form；The flexible characteristic of movement girder construction, true reflection movement beam knot can be fully considered using flexible dynamics analysis method
The dynamic property of structure, to carry out the optimization design of movement beam bottom plate, two methods, which combine, can quickly design high property
The movement girder construction of energy.
2, the mounting surface of bearing, motor and guide rail is processed in the front of bottom plate in the present invention, facilitates installation, make to move beam
Structure it is simple, light-weight, also reduce it is other installation parts processing capacities；Four pieces of sliding blocks are used at the back side of bottom plate, and upper
One piece of end setting, four pieces of combining form is arranged in lower end, so that the rigidity of movement girder construction is good, during high speed exercise, fortune
The deformation of dynamic girder construction is small, and adjusts that speed is fast, and positioning quickly and precisely may be implemented.
Detailed description of the invention
Fig. 1 is the principle flow chart for the design method that flying probe tester of the present invention moves girder construction.
Fig. 2 is the various sliding block assembled scheme schematic diagrames of the present invention.
Fig. 3 is the rigidity schematic diagram in all directions of guide rail slide block engaging portion of the present invention.
Fig. 4 is a kind of structural schematic diagram of present invention movement girder construction.
Fig. 5 is another structural schematic diagram of present invention movement girder construction.
Fig. 6 is the dynamic characteristic figure of Fig. 4 of the present invention and two kinds of Fig. 5 movement girder constructions.
Fig. 7 is the schematic diagram of present invention movement girder construction bottom plate.
Fig. 8 is the scheme of installation of present invention movement girder construction.
Description of symbols：The short sliding block of 1-, 2- slim slide block, 6- bearing mounting surface, 7- motor mounting surface, 8- guide pass, 9-
Groove, 11- motor cabinet, 12- motor, 13- bearing block, 14- guide rail, the first sliding block of 15-, 16-Z axis connection plate, 17- lead screw, 21-
Bottom plate, the second sliding block of 22-, 23- third sliding block, 24- Four-slider, the 5th sliding block of 25-
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give presently preferred embodiments of the present invention.But the invention can be realized in many different forms, however it is not limited to this paper institute
The embodiment of description.On the contrary, purpose of providing these embodiments is keeps the understanding to the disclosure more thorough
Comprehensively.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.
As shown in fig.1, a kind of design method of flying probe tester movement girder construction provided by the invention, the movement beam
Bottom plate both ends are respectively arranged with sliding block, and movement beam is cooperated by the X-axis guide rail on sliding block and flying probe tester, realize in X-direction
On move horizontally.
Specific step is as follows for the design method：
Step S1：According to range demands of the movement beam on flying probe tester, the length of movement beam bottom plate is determined, thus really
Determine the span of bottom plate both ends sliding block.
Step S2：According to determining bottom plate both ends sliding block span, pre-selected sliding block type and the movement beam of setting
The combining form of different sliding blocks is set out in structure total weight, establishes every kind of sliding block combination using rigid multibody dynamics analysis method
The analysis model of form obtains the characteristic that girder construction is moved under every kind of sliding block combining form.
Step S3：According to the characteristic for moving girder construction under every kind of obtained sliding block combining form, according to movement girder construction
Performance and economic indicator select suitable sliding block combining form.
Among the above, in sliding block modeling process, it is rigid that the specific direction at sliding block and guide rail cooperation applies linear and torsion
Degree, and other components are thought of as rigid body, i.e. linear and torsion stiffness at analysis sliding block and guide rail cooperation, obtain movement beam
The performance quality of structure, so that it is determined that suitable sliding block combining form；Furthermore other component is thought of as rigid body, can also reduced
The time cost of analysis.
Step S4：According to the sliding block combining form, movement girder construction total weight and the installation on flying probe tester determined
Constraint estimates the width and thickness of movement beam bottom plate, and step S1 is combined to determine the length for moving beam bottom plate, using flexible dynamic
The analysis model that analysis method establishes movement beam bottom plate is learned, movement beam bottom plate is obtained.
Step S5：According to the requirement of actual processing technique, the bottom plate of movement girder construction is optimized, is allowed to meet performance
And processing request, determine suitable movement beam bottom plate.
In this step, the flexible characteristic of movement girder construction can be fully considered using flexible dynamics analysis method, is made point
Analysis result is more nearly true physical state, carries out topological optimization to movement beam bottom plate, obtains performance and preferably move beam bottom
Plate.
Step S6：The sliding block combining form of selection is separately mounted to obtain different movements on determining movement beam bottom plate
Girder construction tests every kind of movement girder construction, i.e., by it under the driving of 1g acceleration, comparing motion girder construction driven end phase
To the beat value of drive end, to obtain the movement girder construction for meeting performance requirement；If being unable to get the fortune for meeting performance requirement
Dynamic girder construction, then return step S3, reselects sliding block combining form.
Illustrate above-mentioned design method below by specific implementation, moves constraint of the girder construction by the following conditions：(1)
Move the minimum 784mm of span of beam both ends sliding block；(2) the minimum 75mm of length of beam bottom plate is moved；(3) girder construction is moved
Overall quality is less than 15kg；(4) under the driving of 1g acceleration, driven end is less than movement girder construction with respect to the beat of drive end
0.1mm。
Ten kinds of combining forms of short sliding block 1 and slim slide block 2 are obtained according to above-mentioned constraint condition, as shown in Fig. 2.Using more
Rigid body analysis method establishes the analysis model of various slide block combinations, applies line on the specific direction of guide rail slide block engaging portion
Property and torsion stiffness, as shown in Figure 3.
From the point of view of analyzing result, the sliding block negligible amounts of scheme 4 and scheme 5 in Fig. 2, and performance is relatively excellent, therefore
Sliding block combining form selection scheme 4 and scheme 5.
According to sliding block combining form and other constraint conditions, movement beam bottom plate is designed, movement girder construction is carried out soft
Property dynamic analysis, according to analysis as a result, carry out movement beam floor structure optimization.
According to the requirement of structural behaviour and processing technology, modification movement beam bottom plate obtains performance preferably two kinds of structures, such as
Shown in Fig. 4 and Fig. 5, compares the dynamic property of two kinds of structures, can be seen that bottom plate upper end in Fig. 4 and slim slide block 2 is set, lower end is set
Three short sliding block 1 is set, two short sliding blocks in three short sliding block 1 are horizontally disposed with and are located at bottom, that remaining short sliding block
It is arranged in parallel in above other two short sliding block.Slim slide block 2 is arranged in Fig. 5 as can be seen that bottom plate upper end setting bottom plate upper end, under
Three short sliding block 1 is arranged in end, and in bottom, other two short sliding block is horizontally disposed for one short sliding block setting in three short sliding block 1,
And it is parallel to that short sliding block of bottom.
As shown in Fig. 6, beam knot is moved under the driving of 1g acceleration using the movement girder construction of above two sliding block combination
Structure driven end is with respect to the beat of drive end, and from the point of view of curve, the beat amplitude of two kinds of movement girder constructions is respectively less than 0.1mm, but ties
The performance of structure 2 is relatively excellent.
Using structure shown in fig. 5 as movement girder construction optimum structure form, the movement girder construction include bottom plate 21,
Second sliding block 22, third sliding block 23, Four-slider 24 and the 5th sliding block 25, third sliding block 23, Four-slider 24 and the 5th sliding block
25 length is identical and less than the second sliding block 22, and peripheral equipment includes motor cabinet 11, motor 12, bearing block 13, guide rail 14, sliding block
15, Z axis connecting plate 16 and lead screw 17.
Wherein, as shown in fig. 7, the rectangular slab that bottom plate 21 is machined into using plate, the front upper portion processing of bottom plate 21
Bearing mounting surface 6 out, lower end process motor mounting surface 7, positive middle part and with processed respectively on the side of front vertical
Guide pass 8 directly processes these mounting surfaces on bottom plate 21 and not only facilitates installation, can also reduce the work of part processing
Amount extends outward to form boss with the opposite side lower of guide pass 8.
The back side upper end of bottom plate 21 is provided with the second sliding block 22, and third sliding block 23, Four-slider 24 and is provided below
Five sliding blocks 25, third sliding block 23 and Four-slider 24 are horizontally disposed and are arranged in parallel in 25 top of the 5th sliding block, third sliding block 23
On boss, i.e., in the case where only having part to increase movement beam overall weight by setting boss, and give 23 He of third sliding block
Four-slider 24 provides installation space, to guarantee its reliable installation.
Among the above, pass through circular arc and chamfered transition, lower end surface and bottom plate between the upper surface of boss and the side of bottom plate 21
It is arc transition between 21 side, the movement integrally-built rigidity of beam can be improved in this way.
Among the above, in order to keep movement beam overall structure more compact, wherein the side of bottom plate 21 is arranged in a guide rail, this
Two guide rails of sample are mutually perpendicular to, and can reduce structure size.
Among the above, thick increasing bottom plate 21 in order to use structure that can obtain higher dynamic property under certain mass
While spending, two grooves are from top to bottom processed on 21 face of bottom plate, the bottom surface of each groove cuts out six grooves 9 again, with
The quality for mitigating structure, is optimized by the dimensional parameters to these grooves 9, has structure under phase homogenous quantities better
Performance.
As shown in fig.8, movement beam is coupled by the sliding block at 21 back side of bottom plate with the guide rail of X-direction on flying probe tester,
The movement and positioning of movement beam in the X direction may be implemented.It moves and bearing block is installed on the bearing mounting surface 6 of beam bottom plate 21
13, motor 12 is equipped with by motor cabinet 11 on motor mounting surface 7, is separately installed with one on the guide pass 8 of a front surface and a side surface
Road guide rail 14 is mounted on the first sliding block 15 on per pass guide rail 14, is connected between two the first sliding blocks 15 by Z axis connecting plate 16
It connects, one end of lead screw 17 and the output axis connection of motor 12, other end installation is with bearing block 13 by bearing fit, and lead screw 17 is also
It is threadedly engaged, is equipped on Z axis connecting plate 16 gauge head (not shown on figure) with Z axis connecting plate 16, i.e., lead screw 17 is connected by Z axis
Plate 16 drives gauge head, realizes the movement and positioning of gauge head in the Y direction.
Among the above, movement beam in the X direction high-speed motion when, due to using the unilateral form driven, movement beam is being moved
It can be deformed, and can swing back and forth in equilbrium position in whole timing architecture driven end (i.e. bottom plate upper end) in the process.In order to
Improve positioning accuracy and testing efficiency, it should keep the amplitude to swing back and forth small as far as possible and be reduced to certain model as soon as possible
In enclosing, also Reducing distortion and adjusting speed is improved as far as possible.There is good dynamic characteristic in order to make to move girder construction, designing
It should ensure that bottom plate 1 and guide rail slide block engaging portion have enough rigidity in the process, while minimizing the quality of structure.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (8)
1. a kind of design method of flying probe tester movement girder construction, it is characterised in that：The bottom plate both ends of the movement beam are set respectively
It is equipped with sliding block, movement beam is cooperated by the X-axis guide rail on sliding block and flying probe tester；Specific step is as follows for the design method：
Step S1：According to range demands of the movement beam on flying probe tester, determines the length of movement beam bottom plate, thereby determine that bottom
The span of board ends sliding block；
Step S2：According to determining bottom plate both ends sliding block span, pre-selected sliding block type and the movement girder construction of setting
The combining form of different sliding blocks is set out in total weight, establishes every kind of sliding block combining form using rigid multibody dynamics analysis method
Analysis model, obtain under every kind of sliding block combining form move girder construction characteristic；
Step S3：Performance according to the characteristic for moving girder construction under every kind of obtained sliding block combining form, according to movement girder construction
And economic indicator selects two or more sliding block combining form；
Step S4：It is constrained according to the sliding block combining form, movement girder construction total weight and the installation on flying probe tester determined,
The width and thickness of movement beam bottom plate is estimated, and step S1 is combined to determine the length for moving beam bottom plate, using flexible dynamic credit
Analysis method establishes the analysis model of movement beam bottom plate, obtains the characteristic of movement beam bottom plate；
Step S5：According to the requirement of actual processing technique, movement beam bottom plate is optimized, is allowed to meet performance and processing is wanted
It asks, determines suitable movement beam bottom plate；
Step S6：The sliding block combining form of selection is separately mounted to obtain different movement beam knots on determining movement beam bottom plate
Structure tests every kind of movement girder construction, i.e., by it under acceleration driving, comparing motion girder construction driven end is opposite actively
The beat value at end, to obtain the movement girder construction for meeting performance requirement；If being unable to get the movement beam knot for meeting performance requirement
Structure, then return step S3, reselects sliding block combining form.
2. the design method of flying probe tester movement girder construction according to claim 1, it is characterised in that：The step S6
In, movement girder construction is tested, it is driven under 1g acceleration.
3. a kind of movement girder construction that design method according to claim 1 or claim 2 obtains, flying probe tester include motor, axis
Hold seat and guide rail, it is characterised in that：The movement girder construction includes that bottom plate, the second sliding block, third sliding block, Four-slider and the 5th are sliding
Block；
The front upper portion of the bottom plate processes bearing mounting surface, and lower end processes motor mounting surface, processes on positive middle part
The back side upper end of guide pass out, bottom plate is provided with the second sliding block, and third sliding block, Four-slider and the 5th sliding block is provided below,
Third sliding block and Four-slider are horizontally disposed with and are arranged in parallel in above the 5th sliding block；Motor, bearing block and guide rail are respectively set
On motor mounting surface, bearing mounting surface and guide pass.
4. movement girder construction according to claim 3, it is characterised in that：The back side of the bottom plate is from top to bottom machined with two
The bottom surface of a groove, each groove is evenly equipped with groove.
5. movement girder construction according to claim 3 or 4, it is characterised in that：The side perpendicular with front on the bottom plate
Also guide pass is processed on face.
6. movement girder construction according to claim 5, it is characterised in that：The side opposite with guide pass is had on the bottom plate
Face lower part extends outward to form boss, and third sliding block is located on boss.
7. movement girder construction according to claim 6, it is characterised in that：The upper surface of the boss and the side of bottom plate it
Between by circular arc and chamfered transition, be arc transition between lower end surface and the side of bottom plate.
8. movement girder construction according to claim 3, it is characterised in that：The third sliding block, Four-slider and the 5th are sliding
The length of block is identical and less than the second sliding block.
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| CN201410637061.9A CN105652178B (en) | 2014-11-13 | 2014-11-13 | A kind of design method of flying probe tester movement girder construction |
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| CN201410637061.9A CN105652178B (en) | 2014-11-13 | 2014-11-13 | A kind of design method of flying probe tester movement girder construction |
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| CN105652178B true CN105652178B (en) | 2018-11-27 |
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| CN102735884A (en) * | 2012-06-21 | 2012-10-17 | 深圳市大族激光科技股份有限公司 | Bracket for measuring head of flying-probe tester and design method of bracket |
| CN103558769A (en) * | 2013-09-23 | 2014-02-05 | 广东工业大学 | Flexible beam system dynamics modeling method with terminal quality body and control method thereof |
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- 2014-11-13 CN CN201410637061.9A patent/CN105652178B/en active Active
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| US7667466B2 (en) * | 2007-01-31 | 2010-02-23 | Benchmark Electronics | Target tester interface |
| CN101430734A (en) * | 2008-11-12 | 2009-05-13 | 深圳市大族激光科技股份有限公司 | Simulation method, system and equipment for transverse beam assembly of drill |
| CN101417393A (en) * | 2008-11-21 | 2009-04-29 | 深圳市大族激光科技股份有限公司 | Air-bearing support workstation design method |
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| CN105652178A (en) | 2016-06-08 |
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Effective date of registration: 20200618 Address after: 518000 workshop 5 / F, 1 / 2 / F, 14 / F, 17 / F, antuoshan hi tech Industrial Park, Xinsha Road, Shajing street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: SHENZHEN HAN'S CNC SCIENCE AND TECHNOLOGY Co.,Ltd. Address before: 518000 No. 9 West West Road, Nanshan District hi tech park, Shenzhen, Guangdong Co-patentee before: SHENZHEN HAN'S CNC SCIENCE AND TECHNOLOGY Co.,Ltd. Patentee before: HAN'S LASER TECHNOLOGY INDUSTRY GROUP Co.,Ltd. |
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Address after: 518000 5 / F, 1 / 2 / F, 14 / F, 17 / F, No.3 Factory building, antuoshan hi tech Industrial Park, Xinsha Road, Shajing street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Han's CNC Technology Co.,Ltd. Address before: 518000 5 / F, 1 / 2 / F, 14 / F, 17 / F, No.3 Factory building, antuoshan hi tech Industrial Park, Xinsha Road, Shajing street, Bao'an District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN HAN'S CNC SCIENCE AND TECHNOLOGY Co.,Ltd. |