JP2002076570A - Surface-holding movement/guiding mechanism and continuity testing device for wiring board and the like by using the mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a surface-holding moving/guiding mechanism together with a continuity testing device for a wiring board and the like, where the parallelism of planes orthogonal to the moving direction of two machine bodies which linearly move relative to each other is kept constant for guiding their relative movement. SOLUTION: There are provided first and second machine bodies 12 and 14 which linearly move to each other in approaching/receding direction, four rack bodies 16 at corner pints in square on the first machine body 12 side, and two pinion units 22 and 24 where pinions engaging with the rack bodies are fixed at both ends of a rod axle. Rod axles 18 and 20 of the pinion units are spaced parallel to each other while the pinion at both ends engaging each other. The second machine body comprises a surface-holding moving/guiding mechanism 10 provided with a common bearing part 26 engaging for free rotation at both end sides of all the rod axles. Related to the first and second machine bodies, all pinions engaging with the rack body are synchronously rotated at mutual movement, while the parallelism of two planes orthogonal to the moving direction is kept constant for movement/guiding.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a test device used for a continuity test of a press or a printed circuit board of a printing device, a wiring board, etc., and other objects which are applied to precision equipment, general equipment, etc. and which move relatively linearly. The present invention relates to a surface holding / moving guide mechanism for guiding the movement of the moving surfaces while maintaining the moving surfaces thereof constant, and a continuity testing device for a wiring board or the like using the same.

[0002]

2. Description of the Related Art In recent years, a printed wiring board or a printed wiring board printed and printed on or in an insulating substrate for mounting a semiconductor integrated circuit (IC), a large-scale semiconductor integrated circuit (LSI), and other electronic components. There is known a printed circuit board on which various circuit elements are mounted. In the inspection of a printed wiring board, a contact probe pin with a spring is brought into contact with a through hole provided in a basic lattice shape to electrically inspect a connection state of a conductor pattern. In addition, in the mounting inspection of a printed circuit board, a contact probe with a spring is generally brought into contact with a soldered portion of a lead of each mounted component, and the function is examined for each component, and a pass / fail judgment is made. .

Conventionally, in an in-circuit test in which components are mounted on a printed wiring board, a test in which a contact probe is pressed into contact with a land portion to which a lead of each component is soldered is known, for example, from Japanese Patent Publication No. 6-8636. In this apparatus, a lower body having a pin board jig and a printed circuit board to be inspected mounted on an upper surface, an upper body having a holding jig positioned above and facing the lower body, and a lower body Inspection was performed by an electric current inspection device composed of an operation system arranged on one side of the device. A holding jig having an air cylinder corresponding to a land portion or a soldered portion of the substrate is attached to the upper body, and a pin board jig having a large number of contact pins of the lower body planted upward is arranged. It is provided.

[0004]

When a test is performed with the above-described conventional wiring board tester, the holding jig descends to the printed circuit board to be inspected mounted on the upper surface of the lower main body. The continuity test is performed in a state where the contact with the contact probe with the spring on the device side is securely held. For example, the probes for about 100 test sites corresponding to the components mounted on one board are pressed from above during the test. Even when holding it with a jig,
A pressing load of several tens of kilograms is required. For this reason, it is necessary to lower and press the holding jig while maintaining the parallel state between the holding surface of the holding jig and the upper surface plane of the wiring board to be tested with high accuracy. If the presser is driven in a state where the presser surface of the presser jig is not properly parallel to the top surface of the wiring board, an eccentric load is generated on the wiring probe and the contact probe side of the test device, and an accurate continuity test cannot be performed. In addition, there is a risk of damaging expensive test equipment.
Further, in general, there is no guide means for relatively moving the press while reliably maintaining a constant surface holding state of the press machine toward the paper placed on the printing plate of the printing machine which moves relatively linearly with each other. Was desired.

The present invention has been made in view of the above-mentioned conventional problems, and one object of the present invention is to keep the parallel state of a plane orthogonal to the moving direction of two airframes relatively linearly moving relative to each other constant. An object of the present invention is to provide a surface holding movement guide mechanism for guiding the mutual movement while maintaining them. Another object of the present invention is to apply the invention to a continuity test apparatus such as a wiring board, and to move a pressing body in the direction of the wiring board under test while reliably maintaining a correct parallel state with respect to a wiring board to be tested. A surface that can ensure the uniformity of the contact between the probe and the substrate electrode in the continuity test, improve the accuracy of the continuity test, and realize the test reliably and prevent the destruction of the probe and the substrate of the wiring board under test. The object is to provide a holding movement guide mechanism.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is directed to a first and second airframes 12, 14 which move relatively linearly in the direction of approach and separation, and a first airframe 12 side. The two airframes 12, which are provided at positions corresponding to the corner positions of the square,
And four rack bodies 16a, 16b, 16c, 16d, each of which protrudes in the direction of relative movement of 14 and is provided with rack teeth 30 on the side opposite to each other, and rod axes 18, 20 spaced apart and arranged in parallel. And the rod shaft 18,
And two pinion units 22 and 24 in which pinions 32 and 34 that engage with rack teeth 30 provided opposite to each other on the rack body 16 are fixed to both ends of the rack body 20, respectively. The pinions 32 at both ends are engaged with the pinions 34 at both ends of the other rod shaft 20, respectively, and the second body 14 is connected to the rod shaft 18,
20 are provided with a common bearing portion 26 which is freely rotatably engaged at both ends of all rod shafts of the first and second body 1
Planes 400a, 400b orthogonal to the direction of movement of 2, 14
And a plane holding and moving guide mechanism 10 for guiding the movement between the first and second bodies while maintaining the parallel state at a constant level.

Further, the two pinion units 22,
An even number of intermediate pinion units 52 and 54 having pinions 56 and 58 that are provided so as to be sandwiched between them and that engage with both of these pinion units may be provided.

Further, each of the pinion units 22,
The 24 rod shafts 18 and 20 project from the respective pinions 32 and 34, and are arranged in the cross direction of the rod shafts 18 and 20 while engaging with both ends of the rod shafts 18 and 20, and are mounted on the second body 14. Crossed rod shafts 64, 6 rotatably supported
4, both ends of the cross rod shafts 64, 64 and the rod shaft 18,
20 and a gear connection mechanism 66 for gear-coupling the gear 20 with a gear.

The gear linking mechanism 66 includes bevel gears 72, 7 fixed to both ends of the cross rod shafts 64, 64 and both ends of the rod shafts 18, 20 and meshing with each other.
2, 68, 68, 70, 70.

On either side of the first or second body 12, 14, a guide rod 42 is protruded toward the approaching direction thereof, and the guide rod 42 is inserted through the other body. A receiving hole (48) may be provided.

The present invention also provides a continuity test for a wiring board under test 300 by pressing a conductor to each wiring portion of a wiring board arranged to face a group of continuity test probes connected to a test control device. Testing device 10 for wiring boards etc.
0, the wiring board 3 under test
A base portion 106 disposed so as to face the continuity test probe group so as to sandwich the base portion 106 therebetween so as to be capable of moving up and down linearly with respect to the wiring board 300 under test;
And a pressing unit 108 having a pressing member 150 that is connected to the wiring board 06 and presses and drives the conductor at each wiring portion of the wiring board 300 under test. A surface holding movement guide mechanism 10 for guiding the vertical movement of the pressing portion 104 while maintaining a constant parallel state of a plane orthogonal to the movement direction.
Is provided with a continuity test device 100 such as a wiring board provided with the.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a preferred embodiment of a surface holding / moving guide mechanism according to the present invention will be described in detail with reference to the accompanying drawings. FIGS. 1 to 5 show a first embodiment of a surface holding / moving guide mechanism of the present invention. The surface holding / moving guide mechanism 10 moves linearly in the approaching / separating direction. Guides that move the two surfaces relative to the direction of movement of the two relatively moving objects with a substrate, platform, arm, heavy equipment in construction, marine field, etc., boom, etc. It is.

Referring to FIGS. 1 and 2, a surface holding moving guide mechanism 10 is shown.
Has a first body 12 and a second body 14, and in the present embodiment, these are moving objects that relatively linearly move. The first and second airframes 12 and 14 linearly move relative to each other in a straight line in the approaching / separating direction. As shown in FIG. 2, a virtual plane 400 orthogonal to the linear moving direction 500 is formed. These two planes are set as planes parallel to each other. In the figure, the first body 12 is located on the lower side and the second body 14 is located on the upper side. In this embodiment, the first body 12 is the fixed side, the second body 14 is the moving side, and the first body 12 , The second body 14 is set to move linearly in the vertical direction.

The surface holding movement guide mechanism 10 includes four rack bodies 16a, 16a together with the first and second bodies.
b, 16c, 16d, and two pinion units 2 including rod shafts 18, 20 and engaged with these rack bodies 16.
2 and 24, and a common bearing 26 that freely engages with the rod shafts 18 and 20.

The first body 12 has four rack bodies 16a, 16b, 16c, 16d of the same length in the upward direction, that is, the second body 14 It is erected so that everything is parallel to the direction. These racks 16a. . . Is composed of a square pillar-shaped rack base 28 having a certain height (length), and long rack teeth (teeth row) 30 provided on adjacent sides of the rack base and facing each other. . In FIG. 1, one surface on which rack teeth are formed is provided for one rack body. In this embodiment, rack teeth 30 are respectively provided on rack surfaces 16a and 16b on mutually facing surfaces with respect to rack base 28. The rack teeth 30 are fixed to the rack base 28 on the mutually facing surfaces of the rack bodies 16c and 16d.

As shown in FIGS.
On the other hand, the rack teeth 30 are provided so as to be able to adjust the fixed position in the longitudinal direction of the rack base 28 via fixing screws by means of long holes 31 provided in the rack base. Movement, i.e., virtual planes 400a, 40
0b functions as a surface setting adjustment mechanism for the relative movement surface.

The two first and second pinion units 22 and 24 having the first and second pinions 32 and 34 respectively engaging with these rack teeth are connected to the rack body 16.
a. . . It is arranged so that it may fall within the range of the rectangle enclosed by. First and second pinion units 22, 24
Has a first rod shaft 18 and a second rod shaft 20, respectively, and first and second pinions 32 and 34 are fixed to both ends thereof, respectively. The rod shafts 18, 20 are
They are arranged in parallel with each other so as to be separated from each other in a direction that straddles the engaging spaces S1 and S2 sandwiched by the opposing rack teeth. As shown also in FIGS. 3 and 5, the first and second pinions 32 and 34 at both ends of the first and second pinions 32 and 34 are inserted into spaces S1 and S2 sandwiched by opposing rack teeth, respectively. In addition, they are arranged so as to be engaged with the rack teeth on both sides at the same time. That is, the first pinions 32 at both ends of the first rod shaft 18 are provided.
Are engaged with the rack teeth 30 of the rack bodies 16a, 16d, and the second pinions 34 at both ends of the second rod shaft 20,
Reference numeral 34 is engaged with the rack teeth 30 of the rack bodies 16b and 16c. Then, the first pinions 3 at both ends of the first rod shaft
2, 32 and second pinions 34, 3 at both ends of the second rod shaft
Each of the four is simultaneously biting. In addition, 4 in the figure
Reference numeral 0 denotes a bush for fixing the rod shaft and the pinion.

Therefore, the rack members 16a, 16b, 16c, 16d arranged in parallel at the corners of the quadrangle restrict the linear relative movement direction by the rack teeth, and the rack members 16a, 16b, 16c, 16d face each other. The pinions 32, 34 are arranged in the interlocking spaces S1, S2 in a state where the rack teeth 30 on both sides and those pinions are engaged with each other, and the first pinions or the second pinions are connected by the rod shafts 18, 20. Since the first and second pinion units 22 and 24 are fixed,
Are four rack bodies 16a. . . And move up and down in synchronization. At this time, since these pinion units move up and down in synchronization with the occlusal relationship between the rack teeth and the pinion, there is no deviation or deviation in the linear movement direction, and accurate linear movement along the rack body is performed.

Further, in this embodiment, four rack bodies 16a. . . Two round rod-shaped guide rods 42 are protruded and fixed from the first body 12 to the second body 14 side in parallel with the four racks on the inner side of the square formed by. Then, as shown in FIG. 1 to FIG.
The fuselage 14 includes a common bearing 26 that freely engages with the rod shafts 18 and 20. The common bearing 26 is the second
In the embodiment, the second body 14 faces the plane 13 of the pedestal of the first body 12 and is fixed to the body as an integral body or as a separate body, and the rack bodies 16a and 16b and the rack body 1
6c, 16d and the bottom plate 4 disposed at a position sandwiched between
4 and two bearing plates 46 erected on the bottom plate 44 and arranged at both ends of the rod shafts 18 and 20 to rotatably support the two rod shafts 18 and 20. I have. The two bearing plates 46 each have two rod shafts 1.
8 and 20 are supported at the same time, and therefore, the fixed state of the bearing plate 46 and the bottom plate 44, that is, the bottom plate 4
The first and second aircrafts 12 and 14 move relative to each other in a state where the angle and the like with respect to the forward and backward movement directions of the fourth aircraft 4 are determined.

In this embodiment, two receiving holes 48 are formed in the center portion of the bottom plate 44 at spaced positions, and the receiving holes 48 project from the first body 12 side. 42 is provided penetrating upward.
The guide rod 42 is provided in the receiving hole 48 so as to be vertically movable so as to be in close contact with and slide, thereby reinforcing the guiding action of the linear relative movement of the first and second bodies 12 and 14 to ensure reliability. In this embodiment, the bearing 5 is provided in the receiving hole 48 portion.
The bearing hole is formed as a receiving hole 48, which allows the first and second airframes to smoothly move up and down relative to each other and also positions the bottom plate 44 in the lateral direction (thrust direction).

Next, the operation of the surface holding / moving guide mechanism 10 of the first embodiment will be described with reference to FIG. 6. In this embodiment, the first body 12 is the fixed side, and the second body 14 is the second body 14. This is an example of relative movement with respect to one aircraft linearly. FIG.
As shown in the figure, the first and second airframes 12 and 14 have virtual planes 400a and 400b perpendicular to their movement direction lines 500 when moving relative to each other in a straight line, respectively. First, while maintaining a constant
The second bodies 12, 14 relatively move linearly. In FIG. 6, when the bottom plate 44 of the second body 14 is driven by a driving device (not shown) in a direction of pulling the second body 14 upward from a state where the bottom plate 44 is located at a position indicated by a thin line in the figure,
The rod shafts 18 and 20 orthogonal to the longitudinal direction of 6 move up and down at the same pitch through the respective pinions 32 and 34 in synchronization with each other. Therefore, the rack body erected in parallel to the four corner positions and the surface formed by the two rod shafts having pinions engaged with the rack teeth fixed at both ends are linearly formed while maintaining a constant spatial positional relationship. Will move. In FIG. 6, when the second body 14 is forcibly moved upward by the driving device, the first pinion 32 rotates clockwise, and the second pinion rotates in the racks 16a and 16b in the counterclockwise direction. It rotates synchronously with the teeth. As a result, the first and second bodies surely guide their mutual movement while maintaining a constant parallel state of a plane perpendicular to their movement direction. For example, in the assembly process of mechanical parts and structures, etc. It is possible to realize high-precision face-to-face relative approach / separation movement.

Next, a second embodiment of the present invention will be described with reference to FIG. 7. The same members as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted. In this embodiment, two intermediate pinion units 52, 54 interlock the pinions 56, 58 between the two first and second pinion units 22, 24 in the first embodiment, and The second pinion units 22 and 24 are provided so as to be sandwiched between the pinions 32 and 34 of the second pinion units 22 and 24. The intermediate pinion units 52 and 54 have pinions 56 and 58 fixed to both ends of rod shafts 60 and 62, respectively. In addition, the bearing plate 46 includes the first and second rod shafts 1.
Both ends of the rod shafts 60, 62 of the units 8, 20 and the intermediate unit are simultaneously rotatably engaged via bearings. Therefore, the pinions 32, 34, 56, fixed to the first and second rod shafts and the rod shaft of the intermediate unit,
Since the rod 58 moves up and down synchronously, the rod shafts 18 and 20 also keep their relative positional relationship constant, and the straight lines of the first and second bodies are kept in a state where the virtual plane is kept constant. It is possible to surely perform the shape relative movement guidance. In the second embodiment, the intermediate pinion units 52 and 54 are
Although two are provided, two or more even numbers may be provided.

Next, a third embodiment of the present invention will be described with reference to FIG. 16. The same members as those in the second embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted. The surface holding and moving guide mechanism of this embodiment includes a virtual plane 40 shown in FIG.
0a, 400b is a preferred embodiment when the area is large, and the rod shaft 1 of each pinion unit 22, 24
A cross rod shaft 64 which is arranged in the cross direction of the rod shafts 18 and 20 while engaging with both ends of the rod shafts 8 and 20, and a gear linkage mechanism 66 which gears the rod shafts 18 and 20 with both ends of the cross rod shaft 64. The pinions 32 and 34 of the first and second pinion units 22 and 24 are in mesh with each other via a cross rod shaft 64.

In the figure, the common bearing portion 26 of this embodiment is shown.
A bearing piece 74 protrudes in the lateral direction from the bearing plates 46, 46. Two bearing pieces 74, 74 are provided on one bearing plate 46.
At a distance in the extension direction of the cross rod axis 64 in a plan view π
It protrudes in a letter shape. The bearing pieces 74 are provided with through holes in the plate thickness direction.
Is attached. The cross rod shaft 64 is disposed through the bearing holes of the bearings 76, and two intermediate positions of the cross rod shaft 64 are rotatably supported by the second body 14. The cross rod shafts 64, 64 are arranged orthogonally so as to form a square by engaging respective corners at both ends of the rod shaft of the pinion unit arranged in parallel, and opposing rack bodies 16a and 16b, 16c
And 16d, and are arranged in the direction of horizontally extending the intermeshing spaces S1 and S2 sandwiched between the two. That is, the rod shafts 18 and 20 of the pinion unit and the cross rod shafts 64 and 64 are arranged so as to orbit in a rectangular shape in plan view. The cross rod shaft 64 defines an axial longitudinal position of the bearing hole penetrating portion by an E-ring (not shown).

In this embodiment, the cross rod shaft 6
A gear linking mechanism 66 for linking the pinion units 4 and 64 with the respective pinion units 22 and 24 is fixed to both end sides of the cross rod shafts 64 and 64 and both end sides of the rod shafts 18 and 20 and engages with the bevel teeth mutually. Includes bevel gear. As shown in the figure, the pitch cone angle is 45 ° at both ends of the cross rod shaft 64.
The bevel gears 72, 72 formed of bevel gears are fixed.

On the other hand, the rod shafts 18, 20 of the respective pinion units 22, 24 of the present embodiment are
2, 34. Each pinion unit 2
2. In (24), the bevel gears 68, 6
8, (70, 70) are fixed, and the rod shaft 18,
(20), pinions 32, 32, (34, 34),
The bevel gears 68, 68 (70, 70) are integrally rotated at the same rotation angle. And the bevel gear 6 of each pinion unit 22, (24)
8, 68 (70, 70) are bevel gears 72. . . Beveled bite. That is, the pinions 32, 32 at both ends of one rod shaft 18 and the pinions 34, 34 at both ends of the other rod shaft 20 are connected to the gear linkage mechanism 6.
6, 66 are interposed in the middle. In the embodiment, the bevel gears 68 and 70 at both ends of each of the pinion units 22 and 24 are also formed of straight bevel gears having a pitch cone angle of 45 °, like the bevel gears 72 on the cross rod shaft 64 side. In each pinion unit, the pinion and the bevel gear may be integrally formed in a compound gear body having respective tooth portions. In this case, the rod shaft need only be fixed to the compound gear body, and does not need to penetrate the pinion portion.

The pinion units 22, 24 according to the present embodiment
When the shafts rotate while engaging the respective pinions with the rack body, the cross rod shafts 64, 64, which are in common with the gears on both ends, are completely synchronized and rotate in the appropriate direction around the longitudinal direction of the rod by the same angle. The shaft is rotated. In other words,
A pinion 32 engaging each of the four racks,
Only the movement in which all of 32, 34, and 34 are synchronously rotated by the same angle in an appropriate direction is a movement allowed for the second body, and is a certain angle (substantially parallel in the embodiment) with respect to the virtual plane 400a. , The linear relative movement guide of the first and second aircrafts is reliably performed. For example, even when the design of the distance setting for separating the pinion units is changed, it is only necessary to change the length of the crossed rod axis. The surface holding accuracy does not decrease even if the value is changed.

In the embodiment, the gear linking mechanism 66 is configured such that both gears are straight bevel gears having a pitch cone angle of 45 °, for example, crown gear, helical bevel gear, spiral bevel gear, hypoid gear, and others. Any modified bevel gear may be mixed to form a bevel tooth occlusion. Further, the gear linkage of the gear linkage mechanism 66 is not a bevel tooth engagement, but, for example, engages a worm wheel disposed on the pinion unit side with a worm disposed on the cross rod shaft side, or engages a screw gear disposed on both sides. It may be constituted by such as.

In the first to third embodiments,
The rack bodies 16a, 16b, 16c, and 16d are configured as square rod-shaped rack bodies in which rack teeth are attached to a prism-shaped rack base. However, as shown in FIGS. Rack bodies 16 e, 16 f, 16 g formed with rack teeth whose tooth surfaces are oriented so as to correspond to the sides of the square,
A 16h configuration may be used.

The surface holding and moving guide mechanism of the present invention includes a testing device, a precision elevating device,
It can be applied to other precision equipment, elevators, automatic warehouses, other general equipment, and the like.

Next, an embodiment of a continuity test apparatus for a wiring board or the like of the present invention to which the above-described surface holding and moving guide mechanism is applied will be described with reference to FIGS. 10 to 15. The same reference numerals are given to the same members as those given by. In the drawing, a continuity test device (hereinafter referred to as a “continuity test device”) 100 for a wiring board or the like arranges a wiring board under test close to a continuity test probe group connected to a test control device (not shown) and A continuity test is performed on a soldered portion of the wiring board by pressing it against the wiring board under test. In the figure, a continuity test apparatus 100 includes an airframe 102 and an airframe 1
Further, there is provided a pressing portion 104 which presses the wiring substrate 300 under test against the continuity test probe group 600 on the test control device side while being supported by the test control device 02. The pressing portion 104 is the base portion 10
6 and the press unit 10 connected to the base 106
8 is provided.

In this embodiment, while keeping the virtual plane of the pressing portion constant with respect to the body 102, the wiring board under test 300 set on the lower test control device side is evenly distributed over the entire surface of the board. The airframe 10
The pressing unit 104 is pressed and moved while keeping the virtual plane of No. 2 and the virtual plane of the pressing unit in parallel. Each virtual plane is a virtual plane orthogonal to the linear relative movement direction. This aircraft 1
The continuity test apparatus 100 is provided with a surface holding / moving guide mechanism 10 so as to guide the pressing portion with respect to the fixed surface holding / moving surface 02. In this embodiment, while the second body 14 side of the first embodiment of the above-mentioned surface holding and moving guide mechanism is fixed, the first body 12 side having the rack body 16 is moved up and down to make the surface of the pressing portion 104. The holding movement guide is performed.

As shown in the drawing, the airframe 102 is formed of a metal box having a substantially U-shape in a side view with front and side surfaces opened, and includes a top plate 110, a bottom plate 112, a back plate 114,
It has. A pressing portion 104 is arranged on the upper side of the position inside the U-shape in the middle part between the top plate and the bottom plate, and a continuity test probe group connected to the test control device side on the lower side. Test unit 116 with 600
Are arranged, and a wiring board under test 300 is placed between them, and the continuity test of the wiring board under test is performed by the pressing operation of the pressing portion 104.

Referring to FIG. 10 to FIG.
An elevating cylinder 120 for driving the rod 118 in the vertical direction by pneumatic driving is fixed to a substantially central position of the top plate 110. A rectangular base plate 122 is fixed to a lower end of the rod 118 of the lifting cylinder 120 at a substantially central portion thereof. The lifting cylinder 120 is
It is also possible to employ a hydraulic drive, a motor drive, or a lifting / lowering movement or a proximity / separation movement structure by other driving sources.

The top plate 110 is provided on both sides of the lifting cylinder.
Are fixed at the symmetrically spaced positions with the two guide rods 126 guided by these guide cylinders 124 on both sides of the lift cylinder 120. It is provided movably up and down in synchronization with the up and down movement of the rod 118.
That is, the lower end of each guide rod 126 is fixed to the upper surface of the base plate 122 and the lift cylinder 12
In accordance with the vertical movement of the rod 118 of 0, the rod 118 and the guide rod 126 guide the vertical movement by fixing the base plate 122 in a state where the horizontal plane is determined.

A connecting plate 128 is provided so as to connect the upper ends of the guide rods 126 in a bridge shape. As shown in FIG. 130 are provided. The adjustment bolt 130 is a lower limit position setting mechanism for setting a lower limit of the downward movement of the pressing portion 104. The lower limit of the downward movement of the pressing portion can be adjusted and set by moving the bolt forward and backward.

In FIGS. 10 and 11, a support frame 132 is attached and fixed at a lower position on both ends of the base plate 122 when viewed from the front. The support frame 132 has a U-shaped guide groove 134 formed on the inner wall surface facing the front view so as to be longer in the depth direction in the drawing, and these guide grooves 134 serve as guide portions to mount the press unit 108. To support. The depth end side of the guide groove 134 of the support frame 132 forms a blind-shaped abutting wall and terminates at the abutting end. These base plates 1
The base part 106 is composed of the support 22 and the support frame 132. The support frame 132 can be moved up and down via a vertical movement cylinder 137. When the press unit 108 is mounted and moved to the upper end, the mounting state of the press unit to the base plate 122 is locked by the lock pin 138. .

By the operation of the vertical movement cylinder 137, the air detachable connector and the electrical connector provided on the lower surface of the base plate 122 and the upper surface of the press unit 108 are automatically attached and detached. Lower surface side (back surface) of base plate 122
A plurality of air ports connected to an air supply pipe for supplying air from an air supply source (not shown) are arranged and fixed at positions near the depth end of the base unit, and air for pressure contact on the side of the wiring board. A base-side electrical connector for signal supply to a cylinder operation confirmation sensor and signal supply in a case where a continuity test is performed on both sides of the substrate are provided with the connection port facing downward.

The press unit 16 has a long rectangular connector plate 140 and first and second cylinder holding plates 142 and 144 separated from each other vertically by a connecting rod 146, and is fixed thereto. A small-diameter air cylinder 150 having a press-contact cylinder rod 148 is provided so that the press-contact cylinder rod 148 can be pressed and driven downward. The pressing member does not have to be a cylinder-rod structure driven by air, but may be a motor drive, an electromagnetic drive for pushing down the rod by a solenoid mechanism, or another driving force applying structure.

Here, the vertically moving cylinder 137 of the base unit 106 is driven to move upward while the press unit 108 is arranged at the correct connection position, so that the base plate 12
2 and the upper surface of the connector plate of the press unit 108 are brought into close contact with each other in a face-to-face manner,
With this alone, the air ports for driving the air are communicated with each other, and the electric connector portion on the press unit side and the electric connector portion on the base portion side are connected only by face-to-face contact bonding. At this time, fitting of each connector part,
Disengagement may be performed, for example, only by linear movement of the connector plate 140 of the press unit, and by this, the disengagement of the engaged state when the air connector portion and the electric connector portion are fitted can be smoothly and automatically performed. .

On the other hand, in FIG.
Test unit 116 arranged at the lower position with
Similarly, the slide unit is slid from the side in the same manner as the press unit 108 on the pressing portion 104 side. That is,
A test unit 116 including a continuity test probe group 600 with a contact end facing upward so as to face the press unit 108 is slidably mounted on the frame 152.

In the drawing, reference numeral 160 denotes a switch for driving the left and right vertical moving cylinders, 162 denotes a main switch for supplying air pressure, 164 denotes a group of solenoid valves for driving a press-contact cylinder, 166 denotes an air supply main line for supplying air pressure, and 168 denotes a main line for supplying air pressure. It is an intermediate connector for electrical connection on the test control device side.

The continuity test probe pin on the test unit 116 side is normally urged upward by a spring force, and the pressure-sensitive conductive pin attached on the wiring board under test by the press-contact cylinder 148 from the upper surface side. Rubber pad 170 with body
When the upper surface of the predetermined position (position where the conductor is disposed) is pressed, the circuit element on the lower surface side of the substrate 300 is brought into contact with the upper surface to conduct electricity.

Another characteristic of the present invention is as follows.
The first embodiment in which the vertical movement of the pressing portion 104 is guided while maintaining a constant parallel state of a plane orthogonal to the vertical linear movement direction of the pressing portion 104 with respect to the body 102 with the second body 14 of the embodiment fixed on the side. The surface holding movement guide mechanism 10 is provided.

In FIG. 12, through-holes 172 vertically penetrating are provided at four corners of a rectangular shape having the center of the mounting position of the elevating cylinder 120 of the top plate 110 as a center.
The four rack bodies 16a are inserted through the through holes 172,
16b, 16c and 16d are provided so as to be able to move up and down. These rack bodies 16 have the same configuration as that of the first embodiment, and are provided vertically long rack bases 28 having a quadrangular prismatic cross section.
And rack teeth 30 fixed toward the opposing surfaces of the rack base 28. The lower ends of the racks 16 are fixed to the upper surface of the base plate 122 of the base, respectively.
6b, 16c and 16d move up and down synchronously with the lifting cylinder 120 and the guide rod 126, and simultaneously move the base portion 106 at the lower end thereof up and down.

In this embodiment, the bearing plate 46 of the first embodiment is fixed on the upper surface of the top plate 110 at a distance. The common bearing portion 26 is configured as described above via the two bearing plates 46 fixed to the top plate 110, and is supported by the bearings 174 of the bearing plates so that the two first and second bearing plates 174 are supported. Second rod shafts 18 and 20 are provided rotatably. Then, similarly to the first embodiment, the surface holding movement guide mechanism 10 includes a rack body 16a at both ends of the rod shafts 18 and 20.
First and second pinions 32, 34 that respectively mesh with rack teeth 30 provided opposite to each other 16b, 16c, 16d.
Two first and second pinion units 22 with
24, and each of the pinion units 22, 2
The four rod shafts 18 and 20 are arranged side by side, and the pinions at both ends of the rod shafts are engaged with each other. Then, for example, a virtual plane 400 a formed by the top plate 110 or the rod shafts 18 and 20 and a virtual plane 400 b formed by the base plate 122 of the base unit 106, which is orthogonal to the moving direction of the top plate 110 and the base plate 122. The mutual movement guide is reliably performed while maintaining the parallel state constant.

Next, the operation of this embodiment will be described. Referring to the drawing, the rod of the vertical movement cylinder 137 is extended, and the lock pin 138 is retracted from the guide groove 134. The connector plate 140 is inserted through the insertion hole, and is slid laterally along the guide groove 134, and is placed at a correct connection position with the connector plate 140 inserted to the end of the groove. In this state, the rod of the vertical movement cylinder 137 is contracted, the connector plate 140 is raised, and the lock pin 138 is inserted into the hole of the connector plate 140, and is locked and held in the positioned state. Also, the lower vertical cylinder 153 is contracted, the test base plate 154 is pulled up, and the lock pin 155 is retracted upward from the guide groove 156 of the frame 152, and the lower The test unit 116 on the side is inserted from the insertion hole along the guide groove 156 to the abutting end, and is arranged in a correct connection state in the abutting state.

In this state, when the rod of the lower vertical cylinder 153 is extended, the test base plate 154 is lowered,
The lock pin 155 of the test side base plate is
6, the control device side air connector portion, the test unit side air connector portion, the control device side electric connector portion, and the test unit side electric connector portion are simultaneously inserted into the holes of the lower plate to maintain the locked state. They are joined and connected in a face-to-face manner. In this state, the wiring substrate under test 300 is placed on the substrate receiving frame on the upper surface side of the upper plate of the test unit 116, and in this state, a slight gap is opened directly above the continuity test probe group 600. The wiring substrate 300 is placed.

Further, as shown in FIG. 10, a rubber pad 170 is placed on the upper surface of the wiring substrate 300 under test, that is, on the back surface side of the substrate. In this state, the lifting cylinder 1
When the rod 118 is pushed down by driving the 20 up and down, the base 106 and the press unit 108 are lowered while the plane holding and moving guide mechanism 10 keeps a parallel state of a plane orthogonal to the moving direction. Then, a light surface pressure is evenly applied to the entire upper surface of the rubber pad 170 placed on the wiring board under test, and stops at the lower end position determined by the length of the adjustment bolt 130 protruding below the connecting plate 128. In this state, the control unit reads the test pattern stored in the storage unit on the test control device side, and performs the continuity test in the order according to the pattern program. At this time, the air cylinder 150 for pressure contact is driven and the cylinder rod for pressure contact is extended downward in a required order toward a soldering portion or the like to be a wiring portion of the wiring board 300 under test, and the upper surface of the rubber pad 170 is pressed. Then, by pressure, the pressure-sensitive element as a conductor embedded in the rubber pad changes to a conductor, and the conductor portion of the rubber pad 170 comes into contact with the pin at the upper end of the continuity test probe, and the necessary conduction is obtained. A test will be performed.

Here, when the lifting / lowering cylinder 120 is driven to move the pressing portion 104 downward, the second cylinder holding plate 144 at the lower end of the press unit 108 presses the wiring board under test with an equal pressure. The vertical fixing position of the rack teeth 30 with respect to the rack body 16 is
1 is adjusted and set in this state, and in this state, the surface set in parallel is held down and pushed down, so that a biased pressing load is not applied to the wiring board 300 under test. It is possible to perform a continuity test using a proper continuity test device while preventing breakage of the wiring.

The surface holding / moving guide mechanism of the present invention is not limited to the above-described embodiment, and may be arbitrarily modified without departing from the essence of the invention described in the claims.

[0052]

As described above, according to the surface holding / moving guide mechanism of the present invention, the first and second bodies which move relatively linearly in the direction of approach and separation, and the square corners on the first body side A rod shaft provided at a position to be positioned and protruded in the direction of relative movement of the two bodies and provided with rack teeth on opposite sides adjacent to each other; And two pinion units each having a pinion that engages with a rack tooth provided on the opposite end of the rod body at both ends of the rod shaft.
The pinions at both ends of the rod shaft are engaged with the pinions at both ends of the other rod shaft, respectively, and the second body is a common bearing portion that freely engages at both ends of all the rod shafts of the rod shaft. The first and second aircrafts are configured to guide the movement of the first and second aircrafts while maintaining a constant parallel state of a plane orthogonal to the direction of movement of the first and second aircrafts. When linearly moving relative to each other while guiding the relative movement thereof while maintaining a constant parallel state of a plane orthogonal to the moving direction, and driving one of the first and second bodies to move the body in a straight line. A uniform pressing force can be applied to the other body side over the entire orthogonal plane, and a load is applied to a position deviated with respect to the plane, for example, a printing plate in a printing apparatus or a test board of a wiring board. Etc. It without performing any other reliable printing or continuity testing, and the step Tomeritsu work lots entire printing plate and a substrate other work product by the biasing transformer grant can be greatly improved.

Further, an even number of intermediate pinion units provided so as to be sandwiched between the two pinion units and having pinions engaging with both of these pinion units are provided. When the linear relative movement of the first and second bodies is performed, the relative movement is guided while maintaining a constant parallel state of a plane orthogonal to the moving direction, and one of the first and second bodies is driven. When moving in a straight line, a uniform pressing force can be applied to the other body side over the entire orthogonal plane, and a load is applied to a position deviated from the plane, for example, a mark in a printing apparatus. Perform reliable printing or continuity tests without damaging the board or the board under test of the wiring board, etc. The step Tomeritsu work product can be significantly improved.

The rod shafts of the respective pinion units protrude from the respective pinions, and are disposed in the direction crossing the rod shafts while engaging with both ends of the respective rod shafts. Cross rod shaft, and a gear coupling mechanism for gear coupling between both ends of the cross rod shaft and the rod shaft, the relative angle between the large surfaces to a constant angle with little backlash or play It is possible to relatively move linearly in the approach / separation direction while holding.

Further, the gear linking mechanism includes a bevel gear fixed to both ends of the crossed rod shaft and both ends of the rod shaft and meshing with the bevel teeth mutually, so that the meshing accuracy is high and the durability is high. By using an inexpensive bevel gear in spite of its superiority, it is possible to form a hard-to-break and highly reliable surface holding movement guide mechanism.

A guide rod protrudes from either the first or second body toward the approaching direction thereof, and a receiving hole through which the guide rod is inserted is provided on the other body. As a result, the linear relative movement directions of the first and second bodies are defined, and the apparatus for manufacturing and assembling the apparatus for ensuring the occlusal state between the rack body and the pinions of the first and second pinion units. Can be done easily. Also,
The linear mutual movement guide can be smoothly performed, and the guide can be surely performed.

Further, according to the continuity test apparatus for a wiring board or the like using the surface holding / moving guide mechanism of the present invention, each of the wiring boards arranged to face the group of continuity test probes connected to the test control apparatus. A continuity test apparatus such as a wiring board for performing a continuity test of a wiring board under test by pressing a conductor to a wiring portion of the wiring board, the continuity testing probe group being supported by the body and sandwiching the wiring board under test therebetween And a conductor which is connected to the base portion and which is connected to the substrate portion and which is pressed against the individual wiring portions of the wiring board under test. And a press unit having a pressing member for causing the pressing unit to guide the vertical movement of the pressing unit while maintaining a constant parallel state of a plane orthogonal to the vertical linear movement direction of the pressing unit with respect to the machine body. Travel guide Since a structure in which structure is provided, not biased surface pressure against the press unit of the pressing portion,
Since a uniform pressure is applied over the entire surface of the wiring substrate under test, the continuity test can be performed accurately and reliably. Therefore,
Without damaging the pressing part or the wiring board under test.
The continuity test can be continued stably.

[Brief description of the drawings]

FIG. 1 is a schematic overall perspective explanatory view of a surface holding movement guide mechanism according to a first embodiment of the present invention.

FIG. 2 is an explanatory diagram of the operation.

FIG. 3 is an explanatory plan view of FIG. 1;

FIG. 4 is a partial cross-sectional explanatory view taken along line AA of FIG. 3;

FIG. 5 is an explanatory front view of the surface holding movement guide mechanism.

FIG. 6 is a cross-sectional view and action explanatory view taken along line BB of FIG. 3;

FIG. 7 is a schematic front explanatory view of a surface holding / moving guide mechanism according to a second embodiment of the present invention.

FIG. 8 is a schematic plan explanatory view of an example in which the shape of the rack body of the surface holding movement guide mechanism of the first embodiment is changed.

FIG. 9 is an explanatory front view thereof.

FIG. 10 is a front view of a continuity test device for a wiring board and the like according to a fourth embodiment of the present invention.

FIG. 11 is a side view thereof.

FIG. 12 is a plan view thereof.

FIG. 13 is an enlarged plan view of the main part.

FIG. 14 is an enlarged front view of the main part.

FIG. 15 is an explanatory diagram of the CC line enlarging operation of FIG. 14;

FIG. 16 is a schematic overall perspective explanatory view of a surface holding / moving guide mechanism according to a third embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Surface holding movement guide mechanism 12 1st body 14 2nd body 16 Rack body 18 1st rod shaft 20 2nd rod shaft 22 1st pinion unit 24 2nd pinion unit 26 Common bearing part 28 Rack stand 30 Rack teeth 32 1st Pinion 34 Second pinion 46 Bearing plate 52 First intermediate pinion unit 54 Second intermediate pinion unit 64 Cross rod shaft 66 Gear linkage mechanism 68, 70, 72 Bevel gear 102 Body 104 Pressing part 106 Body 108 Press unit 116 Test unit 120 Elevating cylinder 122 Base plate 140 Connector plate 300 Wiring board under test 600 Probe group for continuity test

Claims (6)

[Claims] 1. A first and a second fuselage that relatively linearly moves in a direction of approach and separation, and is provided at a position of a square corner on the first fuselage side and protrudes in a relative movement direction of the two fuselages. And four rod bodies each having rack teeth provided on opposite sides adjacent to each other, and a rod shaft arranged in parallel at a distance from each other, and provided at both ends of the rod shaft so as to face the rack body. Two pinion units, each of which fixes a pinion that meshes with a rack tooth, wherein pinions at both ends of one rod shaft are respectively engaged with pinions at both ends of another rod shaft, and the second body is A common bearing portion which is freely rotatably engaged at both end sides of all the rod shafts of the rod shaft is provided, and a first parallel state of a plane orthogonal to a moving direction of the first and second bodies is kept constant. , Mutual transfer of the second aircraft Surface holding movement guide mechanism for causing the guide. 2. An intermediate pinion unit, which is provided so as to be sandwiched between the two pinion units, and has an even number of intermediate pinion units having pinions engaging with both of these pinion units. Surface holding movement guide mechanism. 3. A rod shaft of each pinion unit protrudes from each pinion, and is disposed in a direction crossing the rod shafts while engaging with both ends of each rod shaft, and is rotatably mounted on a second body by a shaft. 2. The surface holding / moving guide mechanism according to claim 1, further comprising: a supported cross rod shaft; and a gear connection mechanism for gear-linking both ends of the cross rod shaft and the rod shaft. 4. The surface holding and moving guide mechanism according to claim 3, wherein the gear linking mechanism includes bevel gears fixed to both ends of the crossed rod shaft and both ends of the rod shaft and meshing with each other. 5. A guide rod protrudes from either side of the first or second body toward the approaching direction thereof, and a receiving hole through which the guide rod is inserted is provided on the other body side. The surface holding / moving guide mechanism according to any one of claims 1 to 4. 6. A wiring board or the like for conducting a continuity test on a wiring board under test by pressing a conductor to each wiring portion of the wiring board arranged facing the group of continuity test probes connected to the test control device. The continuity test device is supported by the fuselage, is placed opposite the continuity test probe group so as to sandwich the wiring board under test, and is capable of moving up and down linearly with respect to the wiring board under test. A pressing unit having a pressing unit connected to the base unit and having a pressing member that presses and drives the conductor at each wiring portion of the wiring board to be tested. 6. A continuity testing device for a wiring board or the like, provided with a surface holding / moving guide mechanism according to claim 1, wherein the vertical movement of the pressing portion is guided while maintaining a constant parallel state of a plane perpendicular to the vertical moving direction of the vertical direction. .