CN211179938U

CN211179938U - Universal device for testing non-fixed substrate of needle plate and support plate

Info

Publication number: CN211179938U
Application number: CN201921858913.1U
Authority: CN
Inventors: 卞久华; 杭哲
Original assignee: Nanjing Tayunda Wisdom Technology Co ltd
Current assignee: Nanjing Tayunda Wisdom Technology Co ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-08-04
Anticipated expiration: 2029-10-31

Abstract

The utility model discloses a faller and support plate non-stationary type base plate test's universal device, the base plate clamp plate articulates on braced frame body, and base plate clamp plate lid closes in braced frame body's up end department, in the frock electrical group was fixed in the braced frame body, the vertical lower terminal surface that is fixed in the test support plate of uide pin, and the uide pin runs through in the test faller, the test support plate can reciprocate through the uide pin locate on the test faller, the vertical inlaying of probe group is on the test faller, and the upper end of probe group runs through in the test support plate, the lower extreme of probe group links to each other with the frock electrical group, eccentric wheel hoist mechanism locates in the braced frame body, eccentric wheel. The utility model discloses all design faller and support plate for non-fixed, effectively avoid appearing because of the bad phenomenon of test that the test needle concentricity change leads to adopt the eccentric wheel to promote the structure and replace cam mechanism, more light promotion test faller and test support plate.

Description

Universal device for testing non-fixed substrate of needle plate and support plate

The technical field is as follows:

the utility model relates to a faller and support plate non-fixed base plate test's universal device.

Background art:

the structure of the existing substrate testing device is shown in fig. 1, a test carrier is fixed at a horizontal opening at the upper end of a supporting frame body, and a substrate pressing plate is movably linked with the test carrier; the guide pin and the probe group are both vertically fixed on the test needle plate, and the test needle plate can be vertically moved through the guide pin and is arranged between the test carrier plate and the cam structure; the operating handle drives the test needle plate to move on line through the horizontal rotation of the cam mechanism, so that the substrate test is realized;

the above-described test device has some problems:

firstly, the method comprises the following steps: the cam needs to push against the test needle plate, and the installation position often interferes with the position of the probe group on the test needle plate;

secondly, the method comprises the following steps: slight deviation can take place after the test needle board high frequency motion, because the test support plate is the rigid, the pin hole concentricity takes place the deviation and appears contact failure on test needle and the support plate after using for a long time, leads to the mismeasurement.

The invention content is as follows:

the utility model relates to a solve the problem that above-mentioned prior art exists and provide a faller and the general device of the non-fixed base plate test of support plate.

The utility model discloses the technical scheme who adopts has: a universal device for testing a baseplate with a needle plate and a carrier plate in a non-fixed mode comprises a supporting frame body, a tooling electrical group and a baseplate pressing plate, wherein the supporting frame body is of an upper end opening structure, the baseplate pressing plate is hinged on the supporting frame body, the base plate pressing plate is covered at the upper port of the supporting frame body, the tool electrical group is fixed in the supporting frame body, the test device also comprises an eccentric wheel lifting mechanism, a test needle plate, a test carrier plate, a guide pin and a probe group, the guide pin is vertically fixed on the lower end surface of the test carrier plate, the guide pins penetrate through the test needle plate, the test carrier plate is arranged on the test needle plate and can move up and down through the guide pins, the probe group is vertically embedded on the test needle plate, and the upper end of the probe group penetrates through the test carrier plate, the lower end of the probe group is connected with the tool electrical group, the eccentric wheel lifting mechanism is arranged in the supporting frame, and the test needle plate is horizontally arranged at the free end of the eccentric wheel lifting mechanism.

Furthermore, a plurality of positioning holes and guide pins are arranged on the test carrier plate, a plurality of groups of probe sets and a plurality of through holes are fixed on the test needle plate, linear bearings are respectively embedded in the through holes, the guide pins of the test carrier plate penetrate through the linear bearings of the test needle plate, the test carrier plate can move up and down relative to the test needle plate, the upper portions of the probe sets face the positioning holes, and the probe sets are exposed out of the top surface of the test carrier plate.

Furthermore, the eccentric wheel lifting mechanism comprises eccentric wheel units and rocking bars, the two eccentric wheel units are symmetrically fixed on the inner wall of the supporting frame body, the rocking bars are rotatably connected to the supporting frame body and drive the free ends of the eccentric wheel units to move up and down, and the testing needle plate is fixed at the free ends of the eccentric wheel units.

Further, the eccentric wheel unit includes fixed block, eccentric wheel, guide bar, traction block and pull tab, two the layering sets up about the fixed block, and the vertical fixed connection of two guide bars is between two fixed blocks, and the traction block is pegged graft on the guide bar, the eccentric wheel is articulated each other with the pull tab and forms two folding rod structures, and the pull tab articulates on the traction block, eccentric wheel and rocker fixed connection, and when the rocker rotated, the eccentric wheel will drive the traction block and reciprocate, the test faller is fixed in on the traction block.

Furthermore, a limiting bolt is fixed on the end face of the traction block, when the eccentric wheel rotates and drives the traction block to move upwards to the highest end, the limiting bolt limits the eccentric wheel to continue rotating and controls the rotation angle of the rocker within a 90-degree range.

Furthermore, the traction block is fixedly connected with a connecting block, the connecting block is horizontally arranged, and the test needle plate is fixed on the connecting block.

Further, the supporting frame body comprises a front side plate, a tool ceiling plate, a tool floor, a left side plate, a right side plate, a rear side plate and an operation panel, the tool floor is rectangular, the front side plate, the left side plate, the right side plate and the rear side plate are movably connected onto the tool floor through a first hinge, a tool electrical group is installed on the tool floor, and the tool electrical group is connected with a circuit on the back of the operation panel and realizes observation and control of testing.

Furthermore, the base plate pressing plate is movably connected to the upper portion of the tooling top plate through a second hinge, a plurality of groups of electromagnets are arranged on the tooling top plate, and metal sheets are arranged at corresponding positions of the base plate pressing plate.

The utility model discloses following beneficial effect has:

1) the method comprises the following steps of completely lifting a substrate pressing plate, picking up a to-be-tested substrate, placing the to-be-tested substrate on a test carrier plate from top to bottom, covering the substrate pressing plate, pressing down a handle, enabling the test carrier plate and the test needle plate to ascend along with an eccentric wheel lifting mechanism, enabling an electromagnet arranged on a tooling crown plate to be electrified and attracted with an iron sheet corresponding to the substrate pressing plate in the process, tightly pressing the to-be-tested substrate on the test carrier plate, enabling the test carrier plate to ascend limitedly, enabling the test needle plate to continuously ascend to eject a probe group, and achieving elastic contact between the; in the whole process of pressing the substrate to be tested, the test needle plate and the test substrate move up and down, and the probe group on the test needle plate and the corresponding hole on the test carrier plate can be kept concentric all the time; meanwhile, the mode of attracting the fixed base plate pressing plate by the electromagnet replaces a hasp locking mode, the operation is convenient and simple, the complex actions of clamping and loosening the hasp lock are reduced, and the comfort level of a user is increased.

2) Utilize the utility model discloses testing arrangement has solved effectively that test faller probe group and test support plate correspond the hole because of the bad problem of test that the concentricity changes and causes after long-term the use, can also avoid the interference problem that cam mechanism caused because of mounted position.

Description of the drawings:

fig. 1 is a schematic diagram of a prior art product.

Fig. 2 is a structural diagram of the present invention.

Fig. 3 is a schematic view of a support frame.

Fig. 4 is a schematic view of an eccentric wheel unit.

FIG. 5 is a schematic view of a test carrier and a test pin plate.

FIG. 6 is a drawing of a substrate platen.

FIG. 7 is a schematic diagram of the movement of the eccentric wheel unit and the substrate pressing plate.

Fig. 8 is a rear view of the present invention.

In the figure:

11-front side plate, 12-1-tooling ceiling, 12-2-tooling floor, 13-left side plate, 14-right side plate, 15-rear side plate, 16-tooling electrical group, 18-first hinge, 19-operation panel, 20-base plate pressing plate, 21-second hinge, 22-electromagnet, 23-metal sheet, 24-hinge cushion block, 25-press pin, 31-fixing block, 32-eccentric wheel, 33-guide rod, 34-handle, 35-traction block, 36-traction sheet, 37-limit bolt, 38-rocker, 39-connecting block, 41-test needle plate, 46-test carrier plate and 48-probe group.

The specific implementation mode is as follows:

the present invention will be further described with reference to the accompanying drawings.

Referring to fig. 2 to 8, the utility model relates to a universal device for testing a needle plate and carrier plate non-fixed substrate, which comprises a supporting frame body, a tooling electrical group 16, a substrate pressing plate 20, an eccentric wheel lifting mechanism, a testing needle plate 41, a testing carrier plate 46, a guide pin and a probe group 48, wherein the supporting frame body is of an upper end opening structure, the substrate pressing plate 20 is hinged on the supporting frame body, the substrate pressing plate 20 covers the upper end opening of the supporting frame body, the tooling electrical group 16 is fixed in the supporting frame body, the guide pin is vertically fixed on the lower end surface of the testing carrier plate 46, the guide pin penetrates through the testing needle plate 41, the testing carrier plate 46 is arranged on the testing needle plate 41 through the guide pin in a way of moving up and down, the probe group 48 is vertically embedded on the testing needle plate 41, the upper end of the probe group 48 penetrates through the testing carrier plate 46, the lower end of, the test needle plate 41 is horizontally arranged at the free end of the eccentric wheel lifting mechanism.

The eccentric wheel lifting mechanism comprises a rocker 38 and two bilaterally symmetrical eccentric wheel units, two ends of a test needle plate 41 are respectively fixed on connecting blocks 39 of the bilaterally symmetrical eccentric wheel units and move up and down along with the eccentric wheel units, the rocker 38 is rotatably connected on a supporting frame body through two rolling bearings, and a handle 34 is fixed at the tail end of the rocker 38.

The test carrier plate 46 is provided with a plurality of positioning holes and guide pins, a plurality of sets of probe sets 48 and a plurality of through holes are fixed on the test needle plate 41, a linear bearing is respectively embedded in each through hole, the guide pins of the test carrier plate 46 penetrate through the linear bearings of the test needle plate, the test carrier plate 46 can move up and down relative to the test needle plate 41, the upper part of each probe set 48 faces the positioning holes, and the probe sets are exposed from the top surface of the test carrier plate 46.

The eccentric wheel unit comprises a traction block 35, a traction sheet 36, fixing blocks 31, guide rods 33, eccentric wheels 32, connecting blocks 39, limiting bolts 37 and fixing pins, the two groups of guide rods 33 are fixed between the two groups of fixing blocks 31, and the traction block 35 penetrates through the guide rods 33 through a linear bearing and moves up and down between the two groups of fixing blocks 31. The eccentric wheel 32 and the traction sheet 36 are hinged with each other to form a two-folding-rod structure, the traction sheet 36 is hinged on the traction block 35, the eccentric wheel 32 is fixedly connected with the rocker 38, when the rocker 38 rotates, the eccentric wheel 32 drives the traction block 35 to move up and down, and the connecting block 39 is fixed on the side surface of the traction block 35 and used for driving the test needle plate 41 to move up and down.

The eccentric wheel 32 is provided with a fastening hole and a rotating hole, the rotating hole on the eccentric wheel 32 penetrates through a pin shaft, the pin shaft is fixed on the traction sheet 36, the fastening hole of the eccentric wheel 32 penetrates through and is fixed on the rocker 38, when the rocker 38 rotates, the eccentric wheel 32 drives the traction block 35 to move up and down, and the upward pressing and downward releasing of the test needle plate 41 are realized.

And a limiting bolt 37 is fixed on the outer side surface of the traction block 35, when the eccentric wheel rotates and drives the traction block to move upwards to the highest end, the limiting bolt 37 just limits the eccentric wheel to rotate continuously, and the rotation angle of the rocker is controlled within a 90-degree range.

The utility model provides a base plate clamp plate 20 is through second hinge 21 swing joint in frock sky board 12-1 upper portion, is equipped with a plurality of groups electro-magnet 22 on frock sky board 12-1, establishes sheetmetal 23 at base plate clamp plate 20 corresponding position. The power-on switch of the electromagnet 22 is arranged at the pressing position of the rocker, the substrate pressing plate 20 is pressed down, the electromagnet 22 is correspondingly contacted with the metal sheet 23, after the rocker 38 is pressed down, the power-on switch of the electromagnet 22 is switched on, the electromagnet 22 and the metal sheet 23 are mutually attracted and fixed, and a product to be detected is pressed through the pressing pin 25.

The supporting frame body comprises a front side plate 11, a tooling ceiling plate 12-1, a tooling floor plate 12-2, a left side plate 13, a right side plate 14 and a rear side plate 15, the tooling floor plate 12-2 is rectangular, the front side plate 11, the left side plate 13, the right side plate 14 and the rear side plate 15 are movably connected to the tooling floor plate 12-2 through a first hinge 18, and a tooling electrical group 16 is installed on the tooling floor plate 12-2.

The utility model discloses carry out product test's operation process as follows:

test preparation, namely connecting external control or power supply loop connectors to corresponding aviation plugs respectively to realize connection of a test device and an external test circuit; referring to fig. 8, the handle 34 is set to state 1, such that the test needle plate 46 and the test carrier plate are at the bottom end of their stroke, the probe tips of the probe sets 48 on the test needle plate 46 located at the lower ends of the positioning holes 42 of the test carrier plate 41 are not exposed, and then the substrate pressing plate 20 is lifted to state a.

During testing, a product to be tested is manually placed on the test carrier plate 46, then the substrate pressing plate 20 is placed in a state B (a state A in fig. 8 and a state B in fig. 7), the substrate pressing plate 20 presses down the first travel switch, the electromagnet 22 is electrified to tightly suck the substrate pressing plate 20 and the tooling antenna 12-1, and the limited lifting stop position is achieved; rotating the handle 34 from the state 1 to the state 2, pressing down the second travel switch, so that the test carrier plate 46 and the test needle plate 41 rise along with the eccentric wheel unit, and then the test carrier plate 46 and the substrate to be tested are limited by the substrate pressing plate 20 to rise halfway, the substrate to be tested is fastened on the test carrier plate 46, the test needle plate 41 continues to rise to the topmost end of the stroke, the probe group 48 on the test needle plate 41 is exposed for a certain length from the positioning hole of the test carrier plate 46, and is in close contact with the test point at the bottom of the substrate to be tested; at this moment, the operation panel 19 is started to operate the button to test the substrate, and the test result is observed through the digital display on the operation panel 19; after the test is finished, the handle 34 is pulled up from the state 2 to the state 1, so that the test needle plate 41 and the test carrier plate 46 move downwards to the lowest end of the stroke, the contact between the probe group 48 and the test point of the substrate to be tested is disconnected, the first stroke switch is disconnected, the electromagnet 22 is powered off, then the substrate pressing plate 20 is lifted to be placed in the state A, the first stroke switch is failed, and the tested substrate is taken out. So far, all testing steps are completed.

The electromagnet 22 is powered on and powered off through the combination of the first travel switch and the second travel switch and controlled through a P L C configuration program, when the first travel switch is effective, the electromagnet 22 is powered on immediately, after the time delay of 4S, if the second travel switch is invalid, the electromagnet 22 is powered off immediately, if the second travel switch is powered on within 4S, the electromagnet 22 is powered on continuously, after the test is finished, the second travel switch is invalid, and after the time delay of 1S, the electromagnet 22 is powered off no matter whether the first travel switch is effective or not.

To sum up, the utility model discloses all design faller and support plate for non-fixed, effectively avoid appearing because of the bad phenomenon of test that the test needle concentricity change leads to adopt the eccentric wheel to promote the structure and replace cam mechanism, more light promotion test faller and test support plate. Compare the characteristics of current frock, can effectively solve the probe group position interference problem on cam mounted position and the test faller, can avoid using for a long time simultaneously the probe group with test to correspond the hole on the support plate and take place to interfere and crooked, appear testing badly. This example also possesses the commonality to the product of different producers of the same type, through nimble change test support plate and test faller and probe group, can realize the function.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications can be made without departing from the principle of the present invention, and these modifications should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a faller and support plate non-stationary type base plate test's universal device, includes braced frame body, frock electrical group (16) and base plate clamp plate (20), braced frame body is upper end open structure, and base plate clamp plate (20) articulate on braced frame body, and base plate clamp plate (20) lid closes in braced frame body's upper end mouth department, and in frock electrical group (16) were fixed in braced frame body, its characterized in that: still include eccentric wheel hoist mechanism, test faller (41), test support plate (46), uide pin and probe group (48), the uide pin is vertical to be fixed in on the lower terminal surface of test support plate (46), and the uide pin runs through in test faller (41), test support plate (46) can reciprocate through the uide pin locate on test faller (41), probe group (48) are vertical to be inlayed on test faller (41), and the upper end of probe group (48) runs through in test support plate (46), the lower extreme and the electric group of frock (16) of probe group (48) link to each other, eccentric wheel hoist mechanism locates in the carriage, the free end of eccentric wheel hoist mechanism is located to test faller (41) level.

2. The apparatus of claim 1, wherein the apparatus comprises: be equipped with a plurality of locating holes and guide pin on test carrier plate (46), fixed multiunit probe group (48) and a plurality of through-hole on test faller (41), every linear bearing is inlayed respectively in through-hole department, and the guide pin of test carrier plate (46) wears to locate in the linear bearing of test faller to make test carrier plate (46) can reciprocate relatively test faller (41), probe group (48) top is just facing the locating hole, and probe group (48) are exposed from the top surface of test carrier plate (46).

3. The apparatus of claim 1, wherein the apparatus comprises: the eccentric wheel lifting mechanism comprises eccentric wheel units and a rocker (38), the two eccentric wheel units are symmetrically fixed on the inner wall of a supporting frame body, the rocker (38) is rotatably connected to the supporting frame body, the rocker (38) drives the free end of the eccentric wheel unit to move up and down, and the test needle plate (41) is fixed at the free end of the eccentric wheel unit.

4. The apparatus of claim 3, wherein the apparatus further comprises: eccentric wheel unit includes fixed block (31), eccentric wheel (32), guide bar (33), traction block (35) and pull tab (36), two the layering sets up about fixed block (31), and the vertical fixed connection of two guide bar (33) is between two fixed blocks (31), and grafting on guide bar (33) is pull tab (35), eccentric wheel (32) and pull tab (36) articulate each other and form two broken bar structures, and pull tab (36) articulate on traction block (35), and eccentric wheel (32) and rocker (38) fixed connection, when rocker (38) rotate, eccentric wheel (32) will drive traction block (35) and reciprocate, test faller (41) are fixed in on traction block (35).

5. The apparatus of claim 4, wherein the apparatus further comprises: and a limiting bolt (37) is fixed on the end surface of the traction block (35), and when the eccentric wheel (32) rotates and drives the traction block (35) to move upwards to the highest end, the limiting bolt (37) limits the eccentric wheel (32) to continue rotating and controls the rotation angle of the rocker (38) within a 90-degree range.

6. The apparatus of claim 4, wherein the apparatus further comprises: the testing device is characterized in that a connecting block (39) is fixedly connected to the traction block (35), the connecting block (39) is horizontally arranged, and the testing needle plate (41) is fixed to the connecting block (39).

7. The apparatus of claim 1, wherein the apparatus comprises: the supporting frame body comprises a front side plate (11), a tool ceiling plate (12-1), a tool floor (12-2), a left side plate (13), a right side plate (14), a rear side plate (15) and an operation panel (19), wherein the tool floor (12-2) is rectangular, the front side plate (11), the left side plate (13), the right side plate (14) and the rear side plate (15) are movably connected onto the tool floor (12-2) through a first hinge (18), a tool electrical group (16) is installed on the tool floor (12-2), and the tool electrical group (16) is connected with a circuit on the back of the operation panel (19) and used for observing and controlling the test.

8. The apparatus of claim 7, wherein the apparatus further comprises: the base plate pressing plate (20) is movably connected to the upper portion of the tooling top plate (12-1) through a second hinge (21), a plurality of groups of electromagnets (22) are arranged on the tooling top plate (12-1), and metal sheets (23) are arranged at corresponding positions of the base plate pressing plate (20).