A kind of wiring board garter extension fixture of flying probe tester
Technical field
The utility model is related to vertical flying probe tester field, more particularly to a kind of for testing larger in flying probe tester
The wiring board garter extension fixture of the flying probe tester of the wiring board of breadth and thickness between 0.5-1.6MM.
Background technology
Wiring board species is more and more, to wiring board testing equipment --- flying probe tester proposes more requirements.It is vertical
Flying probe tester needs to test the thin plate of some larger breadths.Common vertical flying probe tester is clamped using upper and lower two opposite side and drawn
Mode is stretched, two sides are that the thick circuit panel stiffness of hanging, common small breadth is larger, and the pressure of probe can be overcome in test,
It is possible using the test of this clamp region.But the thin plate of large format is relatively small due to rigidity, using this clamping plate knot
Structure, particularly wiring board can make wiring board produce elastic deformation, shadow near the region of two sides in test process middle probe pressure
Measuring accuracy is rung, is produced and is surveyed by mistake, thinner wiring board elastic deformation amount is bigger for the bigger thickness of breadth.
In the case where probe pressure can not reduce, this is accomplished by the support clamping mode of reasonable Arrangement wiring board, it is to avoid
The probe pressure loading unfavorable to circuit panel stiffness, to improve the rigidity of two side areas.
Utility model content
Main purpose of the present utility model is to provide a kind of wiring board garter extension fixture of flying probe tester, it is intended to press from both sides
Tightly, the left and right sides of wiring board is stretched, increases circuit panel stiffness, prevent test process middle probe pressure from become wiring board elasticity
Shape.
The utility model proposes a kind of wiring board garter extension fixture of flying probe tester, including framework, installed in framework
Left rail, the upper right guide rail of the right edge in framework, two ends are connected to the left rail and institute on interior left side
The upper plate clip assembly and lower plate clip assembly on the upper and lower side for clamping wiring board on right guide rail are stated, also including installed in described
The upper rail on upper side edge in framework, the lower guideway on the lower side in the framework, two ends are connected to institute
State fixed beam that is on upper rail and the lower guideway and being fixed on side and two ends be slidably connected at respectively the upper rail and
Trave lling girder on the lower guideway;The two ends of the trave lling girder respectively by a sliding block locking mechanism component come with the upper rail
Connected with the lower guideway, the sliding block locking mechanism component includes the sliding block being arranged in respective track, is fixedly connected on institute
State the connecting plate on sliding block, the retaining mechanism installing plate being movably coupled on the lower surface of the connecting plate, installed in institute
State the retaining mechanism on retaining mechanism installing plate, the cylinder mounting block on the connecting plate and with the cylinder mounting block
The cylinder of connection, the two ends of the trave lling girder are connected with the cylinder of respective ends respectively;The connecting plate and the locking
Mechanism's installing plate is located at corresponding guide rail top, and the guide runner that vertical respective track direction is set is provided with the connecting plate,
The retaining mechanism installing plate is provided with the first connecting hole corresponding with the guide runner, in corresponding guide runner and described first
Screw rod or rivet are installed in connecting hole, the retaining mechanism installing plate is may move with the connecting plate and is connected, the locking machine
Structure installing plate can be moved along the guide runner to the left side of respective track or right side;The retaining mechanism includes two pins, cam
And the first handle for driving the cam rotation being connected with the cam, it is provided with two on the retaining mechanism installing plate
Individual mounting hole corresponding with the side position of corresponding guide rail two, two mounting holes respectively install pin described in, on the cam axially
The second connecting hole being adapted to the pin is provided with, wherein pin described in is connected in second connecting hole, it is convex with described
Wheel connection;
When the retaining mechanism is in unlocking condition, pin described in two is located at the both sides of respective track, the cam and institute
State pin not contacted with corresponding guide rail, the sliding block can be slided in respective track, realize the regulation of trave lling girder position;It is described
First handle drives the cam rotation, is in close contact the cam rotation to the side of side wall and respective track, and drive
Pin on cam to the outer side shifting away from respective track, to drive retaining mechanism installing plate to move, so as to drive another pin
Follow closely to the medial movement near respective track, another pin is in close contact with the opposite side of respective track, the now locking
Mechanism is in locking state, realizes the positioning of the sliding block;The fixed beam and the trave lling girder are respectively positioned at the two of wiring board
Side, slidably positioning formula is provided with least two for clamping wiring board respectively in the fixed beam and the trave lling girder
The plate clamping structure of left and right side, the clamping force of the operating pressure less than the plate clamping structure of the cylinder, in sliding block positioning
Afterwards, trave lling girder movement described in the air cylinder driven, the wiring board that the plate clamping structure is clamped is stretched in the lateral direction.
Preferably, the plate clamping structure includes plate folder base, compact heap, voussoir, eccentric shaft, second handle, extension spring, extension spring
Hang pin and extension spring link plate, plate folder base include protrusion end and the compression Block- matching sole piece, be arranged on sole piece
The jointed shaft for being hinged the compact heap of rear end, it is arranged on voussoir be adapted to the voussoir shifting for being hinged shaft rear end
Move position and be arranged on the baffle plate that the voussoir moves position both sides, the compact heap is connected with the jointed shaft, is hinged by described
Axle is hinged on the plate folder base, and being assembled to form plate with the sole piece presss from both sides;The voussoir is placed on the voussoir movement position, institute
The wedge head of voussoir is stated towards the jointed shaft, is provided with what is connect for the lower end axle with the eccentric shaft on voussoir movement position
Shaft-jointed hole, is provided with the 3rd connecting hole being adapted to the eccentric wheel of eccentric shaft position on the voussoir, the eccentric shaft it is inclined
Heart wheel position is arranged in the 3rd connecting hole, and the second handle is connected to the upper end of the eccentric shaft, the eccentric shaft
Lower end is connected in shaft-jointed hole by bearing axle, and the second handle drives the eccentric shaft turns, so as to drive the voussoir to exist
Do movable towards the compression Block direction, the voussoir is moved forward, and wedge head is installed in the lower end of the compact heap afterbody
Face, clamps the plate folder;The voussoir is moved rearwards by, and when wedge head departs from the compact heap, the plate folder unclamps;
The both sides side that position is moved positioned at the voussoir that pin is arranged on the plate folder base is hung in the extension spring and the extension spring
On wall, the extension spring link plate is fastened on the rear end face of the voussoir, and is moved on position across in the voussoir, the extension spring
Pins position is hung in the front of the extension spring link plate, one end of each extension spring hangs pin connection and fixes with the corresponding extension spring, another
End is connected with the extension spring link plate, and the pulling force of the extension spring makes the voussoir be positioned at the lower end of the compact heap afterbody
Face, holding plate folder is in clamped condition.
Preferably, limited block, the L-shaped setting of limited block, including transverse plate are connected with the outside of the baffle plate and are erected
To plate, the vertical plate of the limited block is close to baffle plate outside connection, and the transverse plate is located at the top of the voussoir, limitation
The voussoir is in the position of above-below direction.
Preferably, the bearing is provided with two, and each bearing lower section is provided with spacer ring.
The beneficial effects of the utility model are:
The utility model is provided with the clamping structure of the left and right sides for clamping, stretching wiring board, including installed in frame
Upper rail on upper and lower side and lower guideway, two ends in frame are connected on upper rail and lower guideway and are fixed on one
The fixed beam of side and two ends are slidably connected at the trave lling girder on upper rail and lower guideway respectively, and the two ends of trave lling girder pass through one respectively
Sliding block locking mechanism component to be connected with upper rail and lower guideway, and when retaining mechanism is in unlocking condition, the position of trave lling girder can
Regulation;Plate clamping structure in fixed beam and trave lling girder is clamped into wiring board, fixed beam is fixed on the side of wiring board to be measured, it is mobile
Beam is adjusted to the opposite side of wiring board, then by rotating first handle, drives cam rotation, makes cam rotation to side wall and phase
Answer the side of guide rail to be in close contact, and drive another pin to the medial movement near respective track, make another pin with it is corresponding
The opposite side of guide rail is in close contact, so that retaining mechanism is in locking state, realizes the positioning of sliding block;Then driven by cylinder
Dynamic trave lling girder movement, the wiring board for clamping plate clamping structure is stretched in the lateral direction, wiring board is evened up, to reach increase
The purpose of circuit panel stiffness, prevents test process middle probe pressure from making wiring board elastic deformation.
Brief description of the drawings
Fig. 1 is the structural representation of the wiring board garter extension fixture of the utility model flying probe tester;
Fig. 2 illustrates for the STRUCTURE DECOMPOSITION of the plate clamping structure of the wiring board garter extension fixture of the utility model flying probe tester
Figure;
Fig. 3 is the structure of the sliding block locking mechanism component of the wiring board garter extension fixture of the utility model flying probe tester
Decomposing schematic representation.
The realization of the utility model purpose, functional characteristics and advantage will be described further referring to the drawings in conjunction with the embodiments.
Specific embodiment
It should be appreciated that specific embodiment described herein is only used to explain the utility model, it is not used to limit this
Utility model.
Referring to figs. 1 to Fig. 3, an implementation of the wiring board garter extension fixture of flying probe tester of the present utility model is proposed
Example:
A kind of wiring board garter extension fixture of flying probe tester, including framework 1, on the left side in framework 1
Left rail 11, the upper right guide rail 12, two ends of the right edge in framework 1 are connected on left rail 11 and right guide rail 12
Upper plate clip assembly 5 and lower plate clip assembly 6 for clamping the upper and lower side of wiring board 8, also including the upside in framework 1
Upper rail 13 on side, the lower guideway 14, two ends on the lower side in framework 1 be connected to upper rail 13 and under lead
Fixed beam 4 on rail 14 and being fixed on side and two ends are slidably connected at the trave lling girder on upper rail 13 and lower guideway 14 respectively
2, slidably positioning formula is provided with two left and right sides for clamping wiring board 8 respectively in the fixed beam 4 and trave lling girder 2
Plate clamping structure 7.4 supporting surfaces of plate clamping structure 7 are in the same plane with the supporting surface of upper and lower plate clip assembly 5,6, to clamp
The upper and lower, left and right side of same wiring board 8.When test is idle, trave lling girder 2 moves to the outermost end of upper and lower rails 13,14
Position is fixed.
Plate clamping structure 7 in fixed beam 4 and trave lling girder 2 can on demand be slided up and down and carry out adjustment position.As shown in Fig. 2
Plate clamping structure 7 includes that pin is hung in plate folder base 71, compact heap 72, voussoir 73, eccentric shaft 74, second handle 75, extension spring 76, extension spring
761 and extension spring link plate 762.Plate folder base 71 include protrusion end the sole piece 711 matched with compact heap 72, be arranged on sole piece
The jointed shaft 712 for being hinged compact heap 72 of 711 rear ends, the voussoir being adapted to voussoir 73 for being arranged on the rear end of jointed shaft 712
Move position and be arranged on the baffle plate 713 that voussoir moves position both sides, compact heap 72 is connected with jointed shaft 712, by jointed shaft 712
It is hinged on plate folder base 71, being assembled to form plate with sole piece 711 presss from both sides.Voussoir 73 is placed on voussoir movement position, the wedge head of voussoir 73
Towards jointed shaft 712.The shaft-jointed hole connect for the lower end axle with eccentric shaft 74 is provided with voussoir movement position, is set on voussoir 73
The eccentric wheel position for having the 3rd connecting hole being adapted to the eccentric wheel position of eccentric shaft 74, eccentric shaft 74 is arranged in the 3rd connecting hole,
Second handle 75 is connected to the upper end of eccentric shaft 74, and the lower end of eccentric shaft 74 is connected in shaft-jointed hole by the axle of bearing 78, second-hand
Handle 75 drives eccentric shaft 74 to rotate, so as to drive voussoir 73 doing movable towards the direction of compact heap 72.Voussoir 73 is to reach
Dynamic, wedge head is installed in the lower surface of the afterbody of compact heap 72, presss from both sides plate and clamps;Voussoir 73 is moved rearwards by, and wedge head departs from compact heap 72
When, plate folder unclamps.
Wherein, bearing 78 is provided with two, and each lower section of bearing 78 is provided with spacer ring 79.
Extension spring 76 and extension spring hang pin 761 be arranged on plate folder base 71 on the both sides side wall of voussoir movement position, extension spring
Hanging plate 762 is fastened on the rear end face of voussoir 73, and across on voussoir movement position.Extension spring is hung pin 761 and is located at extension spring link plate
762 front, one end of each extension spring 76 hangs pin 761 and is connected with corresponding extension spring, and the other end is connected solid with extension spring link plate 762
It is fixed.The pulling force of extension spring 76 makes voussoir 73 be positioned at the lower surface of the afterbody of compact heap 72, and holding plate folder is in clamped condition, prevents from surveying
Plate folder opens in examination.
Limited block 77, the L-shaped setting of limited block 77, including transverse plate and vertical plate are connected with the outside of baffle plate 713, it is spacing
The vertical plate of block 77 is close to the connection of the outside of baffle plate 713, and transverse plate is located at the top of voussoir 73, and limitation voussoir 73 is in above-below direction
Position, prevents voussoir 73 from tilting, and makes voussoir 73 movable more smooth.
The two ends of trave lling girder 2 are connected by a sliding block locking mechanism component 3 with upper rail 13 and lower guideway 14 respectively.Such as
Shown in Fig. 3, sliding block locking mechanism component 3 includes the sliding block 21 being arranged in corresponding upper and lower rails 13,14, is fixedly connected on
Connecting plate 22 on sliding block 21, the retaining mechanism installing plate 23 being movably coupled on the lower surface of connecting plate 22, it is arranged on
Retaining mechanism on retaining mechanism installing plate 23, the cylinder mounting block 27 on connecting plate 22 and connect with cylinder mounting block 27
The cylinder 28 for connecing.The two ends of trave lling girder 2 are connected with the cylinder 28 of respective ends respectively.Connecting plate 22 and retaining mechanism installing plate 23
Positioned at the top of corresponding upper and lower rails 13,14, the guide runner 221 that vertical respective track direction is set is provided with connecting plate 22,
Retaining mechanism installing plate 23 is provided with first connecting hole corresponding with guide runner 221, is connected with first in corresponding guide runner 221
Screw rod or rivet are installed in hole, retaining mechanism installing plate 23 is may move with connecting plate 22 and is connected, retaining mechanism installing plate 23 can
Moved to the left side of respective track or right side along guide runner 221.Retaining mechanism includes two pins 26, cam 24 and connects with cam 24
Connect for the first handle 25 that is rotated with moving cam 24, two are provided with retaining mechanism installing plate 23 with corresponding guide rail two
The corresponding mounting hole of side position, two mounting holes respectively install a pin 26, and the be adapted to pin 26 is axially arranged with cam 24
Two connecting holes, wherein a pin 26 is connected in the second connecting hole, are connected with cam 24.
When retaining mechanism is in unlocking condition, two pins 26 are located at the both sides of respective track, cam 24 and pin 26 and phase
The guide rail answered is not contacted, and sliding block 21 can be slided in respective track, realize the regulation of the position of trave lling girder 2.When need to lock, by
One handle 25 is rotated with moving cam 24, cam 24 is turned to side wall and is in close contact with the side of respective track, and band moving cam
Pin 26 on 24 to the outer side shifting away from respective track, to drive retaining mechanism installing plate 23 to move, so as to drive another
Pin 26 makes another pin 26 be in close contact with the opposite side of respective track to the medial movement near respective track, now locks
Tight mechanism is in locking state, realizes the positioning of sliding block 21.The operating pressure of cylinder 28 is less than the clamping force of plate clamping structure 7,
Plate clamping structure 7 clamps wiring board 8, and after the positioning of sliding block 21, cylinder 28 drives trave lling girder 2 to move again, and plate clamping structure 7 is pressed from both sides
Tight wiring board 8 is stretched in the lateral direction, evens up wiring board 8, and the purpose of the rigidity of wiring board 8 is increased to reach, and is prevented
Test process middle probe pressure makes the elastic deformation of wiring board 8.
This fixture realizes that the operating process of two side clamping plate stretchings is:Open upper and lower plate clip assembly 5,6 and side 4
Upper following → upper plate clip assembly 5 that plate clamping structure 7 → upper and lower plate clip assembly 5,6 clamps wiring board 8 upwards evens up wiring board 8
Two plate clamping structures 7 clamp two plate clamping structures 7 on 8 → trave lling girder of wiring board 2 and clamp wiring board 8 → fixation in → fixed beam 4
The position of sliding block 21 → drive trave lling girder 2 that wiring board 8 is evened up by cylinder 28.
Preferred embodiment of the present utility model is the foregoing is only, the scope of the claims of the present utility model is not thereby limited,
The equivalent structure transformation that every utilization the utility model specification and accompanying drawing content are made, or directly or indirectly it is used in other phases
The technical field of pass, is similarly included in scope of patent protection of the present utility model.