CN211527312U

CN211527312U - Detection apparatus for functional test tool thimble

Info

Publication number: CN211527312U
Application number: CN202020255143.8U
Authority: CN
Inventors: 丁聪; 利俊杰; 周雷
Original assignee: Suzhou Kemeng Laser Technology Co Ltd
Current assignee: Suzhou Kemeng Laser Technology Co Ltd
Priority date: 2020-03-04
Filing date: 2020-03-04
Publication date: 2020-09-18
Anticipated expiration: 2030-03-04

Abstract

The utility model relates to a functional test tool technical field especially relates to a detection device of functional test tool thimble, and its technical scheme is that, the lower mould is arranged on the upper surface of the detection carrying platform, is provided with a plurality of thimbles on the lower mould, and is provided with a plurality of mounting blocks on the lower mould, and is provided with the mounting groove for placing the thimble on the mounting block; an upper die is arranged right above the lower die, a plurality of through holes for the ejector pins to extend into are vertically arranged at the bottom end of the upper die, and a driving piece used for driving the upper die to move up and down is arranged at the bottom end of the upper die and on the detection carrying platform. Firstly, the ejector pin is placed on the lower die, the ejector pin is fixed through the fixing piece, the upper die is moved downwards through the driving piece, the upper die is moved downwards, the ejector pin is inserted into the corresponding through hole, and when the ejector pin can be normally inserted into the through hole, the ejector pin is proved not to be bent or inclined, so that the detection efficiency can be effectively improved.

Description

Detection apparatus for functional test tool thimble

Technical Field

The utility model belongs to the technical field of thimble detection device technique and specifically relates to a detection device of function test tool thimble is related to.

Background

The PCBA processing technology comprises the working procedures of PCB manufacturing procedure, component purchasing and inspection, SMT patch assembly, DIP plug-in, PCBA test and the like. The PCBA test is the most critical quality control link in the whole processing procedure and determines the final service performance of the product.

The functional test after the PCBA circuit board is assembled is generally called as FCT test, and mainly detects whether the circuit board functions normally. The FCT test fixture comprises a plurality of FCT test thimbles which are distributed according to FCT test sites. During testing, the circuit board is fixed on the jig, and the FCT testing thimble is jacked up by the thimble cylinder and contacts with a welding spot of the circuit board. At the moment, the FCT test thimble collects data and conveys the collected data to the display screen through the data line, and the display screen displays the test structure of the circuit board.

In the process of FCT test, a large quantity of FCT test thimbles are needed, and the diameter of each thimble is 0 mm to 7mm at least. However, the thimble with such a small diameter is often bent or tilted due to an external force during the production, storage and transportation processes, so that the thimble is mistested and cannot be used in the subsequent testing and using processes.

The existing Chinese patent with the publication number of CN207779330U discloses a detection device for a thimble of a function test fixture, which comprises a detection carrier, a lower die and a pressing mechanism, wherein the lower die is arranged on the upper surface of the detection carrier, a plurality of through holes which are communicated along the vertical direction are formed in the lower die, a wire sleeve with an open top and a closed bottom end is arranged in each through hole, the bottom of the wire sleeve is electrically connected with an LED lamp, and the lower die is a transparent or semitransparent and non-conductive part. The pressing mechanism comprises a pressing mechanism body and an upper die, the upper die can move up and down relative to the lower die, the ejector pin assembly is installed below the upper die and comprises an ejector pin assembly body with a USB interface and a plurality of ejector pins arranged on the lower side of the ejector pin assembly body, and the plurality of ejector pins are communicated with a power supply through the USB interface. When the USB interface is powered on and the upper die moves downwards, the ejector pin is inserted into the corresponding wire sleeve and contacts with the conductive sleeve to form the LED lamp corresponding to the electric quantity, and then the ejector pin is qualified. When damage occurs to the ejector pins on the ejector pin assembly in the using process, the damaged ejector pins need to be replaced independently, and whether the ejector pins are bent or skewed needs to be judged by naked eyes during replacement.

However, the above-mentioned prior art has the following drawbacks: when changing the thimble of damage in the above-mentioned scheme, judge through the naked eye whether the thimble appears buckling or crooked phenomenon, the efficiency of detection is lower, and the condition of misdetection appears in the in-process that detects easily for detection efficiency is lower.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a detection device of functional test tool thimble, it has the effect that can effectively improve detection efficiency.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides a detection apparatus of functional test tool thimble, includes: detecting a carrying platform;

the lower die is arranged on the upper surface of the detection carrying platform and is provided with a plurality of ejector pins and a fixing piece for fixing the ejector pins;

the upper die is positioned above the lower die, and a plurality of through holes for the thimble to extend into are arranged at the bottom end of the upper die in a penetrating manner;

the driving piece is used for driving the upper die to move up and down.

By adopting the technical scheme, the ejector pin is firstly placed on the lower die, the ejector pin is fixed through the fixing piece, the upper die moves downwards through the driving piece, the upper die moves downwards and enables the ejector pin to be inserted into the corresponding through hole, and when the ejector pin can be normally inserted into the through hole, the ejector pin is proved not to be bent or inclined, so that the detection efficiency can be improved. And because the thimble is fixed on the lower mould, it is more convenient at the in-process of installation and dismantlement. And the upward moving stroke of the upper die is shortened, so that the production efficiency can be effectively improved.

The present invention may be further configured in a preferred embodiment as: the bottom of going up the mould just is located the both sides of through-hole and all is provided with transmitter and receiver, transmitter and receiver one-to-one.

By adopting the technical scheme, the upper die moves downwards, when the ejector pin is inserted between the corresponding transmitter and receiver, the communication between the transmitter and the receiver is cut off, and the ejector pin can penetrate into the corresponding through hole, so that the ejector pin is proved not to be bent or inclined, and the measurement accuracy of the ejector pin can be further improved.

The present invention may be further configured in a preferred embodiment as: the mounting is including the installation piece, the installation piece is cylindrical setting, the installation piece sets up on the lower mould, the top of installation piece is provided with the mounting groove of placing the thimble, be provided with a plurality of connecting holes that are linked together with the mounting groove on the lateral wall of installation piece, be provided with the dead lever in the connecting hole, the one end of dead lever stretches into the mounting groove and offsets with the thimble.

Through adopting above-mentioned technical scheme, place the thimble in the mounting groove that corresponds to make a plurality of dead levers offset with the thimble, thereby can firmly fix the thimble, thereby can be convenient for the detection of thimble. When the thimble needs to be detached after detection is completed, the thimble can be taken down after the abutting relation of the fixing rod to the thimble is released, so that the effect of convenient operation can be achieved.

The present invention may be further configured in a preferred embodiment as: the inner wall of the mounting groove is provided with a butt groove communicated with the connecting hole, a butt block is arranged in the butt groove, one end of the butt block abuts against the ejector pin, and the other end of the butt block is connected with the fixing rod.

Through adopting above-mentioned technical scheme, the area of contact of dead lever and thimble has been increased in the setting of butt piece, has increased the stiction between butt piece and the thimble to can further fix the thimble.

The present invention may be further configured in a preferred embodiment as: and a rubber pad is arranged at the other end of the butt joint groove far away from the fixed rod.

Through adopting above-mentioned technical scheme, the setting of rubber pad, and the rubber bottom itself has elasticity, can further increase the stiction between butt piece and the thimble to can further fix the thimble.

The present invention may be further configured in a preferred embodiment as: the utility model discloses a fixing device, including dead lever, connecting hole, installation piece, outer loop, thimble, connecting hole, connecting rod and connecting rod, the one end that the butt joint piece was kept away from to the dead lever is worn out the connecting hole and is hemispherical, be provided with in the connecting hole and be used for applying the elastic component towards the butt joint piece to the dead lever, it is connected with the outer loop to rotate on the lateral wall of installation piece, the outer loop is used for.

Through adopting above-mentioned technical scheme, to the one end rotation outer loop that is close to the dead lever for the outer loop is hemispherical tip with the dead lever and offsets, and under the effect of elastic component, makes the dead lever to the one end removal that is close to the thimble, makes butt joint piece and rubber pad and thimble offset, thereby can fix the thimble. When the ejector pin is disassembled, the outer ring is rotated in the opposite direction, so that the ejector pin can be taken down after the outer ring is separated from the fixed rod, and the outer ring is arranged, so that the ejector pin can be conveniently assembled and disassembled.

The present invention may be further configured in a preferred embodiment as: and a lug is arranged on the outer side wall of the outer ring.

By adopting the technical scheme, the lug is arranged, so that the outer ring can be conveniently rotated, and the effect of convenience in operation can be achieved.

The present invention may be further configured in a preferred embodiment as: and a baffle is arranged on the outer side wall of the mounting block and above the fixing rod.

Through adopting above-mentioned technical scheme, when needs detect the thimble, rotate the outer loop for the baffle removes to the direction of dead lever, and the setting of baffle can avoid the outer loop to break away from the dead lever at the pivoted in-process.

To sum up, the utility model discloses a following at least one useful technological effect:

1. through the arrangement of the lower die, the ejector pin, the upper die and the through hole, the ejector pin is arranged on the lower die, so that the ejector pin can be conveniently mounted and dismounted;

2. the fixing rod, the abutting block and the rubber pad are arranged, so that the stability of the thimble can be further improved;

3. through the setting of outer loop, the groove of stepping down, can further reach the effect of being convenient for operate.

Drawings

Fig. 1 is a schematic view of the overall structure shown in the embodiment of the present invention;

fig. 2 is a schematic structural diagram for embodying a transmitter and a receiver according to an embodiment of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is another schematic structural diagram of the embodiment of the present invention;

fig. 5 is an enlarged view of a portion B in fig. 4.

In the figure, 1, a detection stage; 11. a lower die; 12. a thimble; 13. an upper die; 14. a through hole; 15. a cylinder; 2. a transmitter; 21. a receiver; 22. a butting rod; 3. mounting blocks; 31. mounting grooves; 32. connecting holes; 33. fixing the rod; 34. a butt joint groove; 35. a butting block; 36. a rubber pad; 4. a limiting block; 41. a spring; 42. an outer ring; 43. a bump; 44. and a baffle plate.

Detailed Description

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

Referring to fig. 1, for the utility model discloses a detection apparatus for functional test tool thimble 12, including detecting microscope carrier 1, be provided with lower mould 11 on detecting microscope carrier 1's the upper surface, and be provided with a plurality of thimbles 12 on the lower mould 11, and be provided with mould 13 directly over lower mould 11, the vertical through-hole 14 that is provided with a plurality of confession thimbles 12 and stretches into in bottom of going up mould 13, and go up mould 13 and adopt transparent material to make. And a driving part is arranged on the detection carrying platform 1, in this embodiment, the driving part is an air cylinder 15, and a piston rod of the air cylinder 15 is connected with the upper die 13 and is used for driving the upper die 13 to move up and down along the vertical direction.

Referring to fig. 2 and 3, the bottom end of the upper die 13 and the two sides of the through hole 14 are both provided with the emitter 2 and the receiver 21, and the emitter 2 corresponds to the receiver 21 one by one. And both the transmitter 2 and the receiver 21 are electrically connected with the controller. Four corners of the upper surface of the lower die 13 are provided with abutting rods 22, and after the thimble 12 is inserted into the corresponding through hole 14, the upper die 13 abuts against the abutting rods 22, so that the transmitter 2 and the receiver 21 can be prevented from being damaged.

Referring to fig. 4 and 5, a fixing part for fixing the thimble 12 is disposed on the lower mold 11, in this embodiment, the fixing part includes a mounting block 3, and the mounting block 3 is fixedly disposed on the lower mold 11, the mounting block 3 is cylindrically disposed and is provided with a plurality of, specifically, the mounting block 3 is provided with six, the six mounting blocks 3 are divided into two rows, each row is provided with three, and the two rows of mounting blocks 3 are divided into four rows, and each row has two mounting blocks 3. Taking one of the mounting blocks 3 as an example, the mounting groove 31 for placing the thimble 12 is arranged on the top surface of the mounting block 3, and the outer side wall of the mounting block 3 is provided with a plurality of connecting holes 32 communicated with the mounting groove 31, and the connecting holes 32 are uniformly distributed along the circumferential direction outside the mounting, specifically, the connecting holes 32 comprise positioning holes which are sequentially arranged, a sliding hole and a yielding hole, and the positioning holes, the sliding hole and the yielding hole are jointly provided with a fixing rod 33 in a sliding manner, and the diameter of the sliding hole is greater than that of the positioning hole and the yielding hole, and one end of the fixing rod 33 extends out of the positioning hole and is hemispherical. An abutting groove 34 communicated with the positioning hole is arranged on the inner side wall of the mounting groove 31, and the opening area of the abutting groove 34 is larger than that of the positioning hole. A butting block 35 is arranged in the butting groove 34, one end of the butting block 35 is connected with the fixing rod 33, the other end of the butting block 35 is connected with a rubber pad 36, and one end, far away from the butting block 35, of the rubber pad 36 butts against the thimble 12.

Referring to fig. 5, be provided with stopper 4 on the lateral wall of dead lever 33, it is concrete, stopper 4 is cyclic annular, and stopper 4 sets up downthehole sliding, and the downthehole elastic component that is provided with slides, and in this embodiment, the elastic component includes spring 41, and spring 41 cover is established on dead lever 33, and spring 41's one end offsets with the inner wall that the hole of sliding is close to the hole of stepping down, and spring 41's the other end offsets with stopper 4.

Referring to fig. 5, the outer side wall of the mounting block 3 is threadedly connected with an outer ring 42, and a plurality of lugs 43 are uniformly distributed on the outer side wall of the outer ring 42 along the circumferential direction thereof, so as to facilitate the rotation of the outer ring 42. A baffle 44 is arranged on the outer side wall of the mounting block 3 and above the fixing rod 33, and the baffle 44 is annularly arranged, so that the position of the outer ring 42 can be limited, and the outer ring 42 is prevented from being separated from the fixing rod 33 in the rotating process.

The implementation principle of the embodiment is as follows:

when the thimble structure is used, the thimble 12 is placed in the mounting groove 31, the outer ring 42 is rotated upwards, the outer ring 42 abuts against the hemispherical end of the fixing rod 33 in the moving process, the fixing rod 33 is pushed to move towards one end close to the thimble 12, the fixing rod 33 drives the abutting block 35 and the rubber pad 36 to move towards the direction close to the thimble 12, so that the rubber pad 36 abuts against the thimble 12, and the thimble 12 is fixed.

After the thimble 12 is fixed, the upper die 13 is moved downwards, when the thimble 12 is inserted between the corresponding emitter 2 and receiver 21 to cut off the communication between the emitter 2 and receiver 21, and the thimble 12 can extend into the corresponding through hole 14, it is proved that the thimble 12 is not bent or inclined, and when the thimble 12 does not extend into the corresponding through hole 14, it is proved that the thimble 12 is unqualified.

After the detection of the thimble 12 is completed, the outer ring 42 is rotated in the opposite direction, so that the outer ring 42 is separated from the fixing rod 33, and the fixing rod 33, the abutting block 35 and the rubber pad 36 are restored to the initial position under the elastic force of the spring 41, so that the thimble 12 can be taken out.

The embodiments of the present invention are the preferred embodiments of the present invention, and the protection scope of the present invention is not limited by this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a detection apparatus for functional test tool thimble which characterized in that includes:

a detection stage (1);

the lower die (11) is arranged on the upper surface of the detection carrying platform (1), and a plurality of ejector pins (12) and fixing pieces for fixing the ejector pins (12) are arranged on the lower die (11);

the upper die (13) is positioned above the lower die (11), and a plurality of through holes (14) for the ejector pins (12) to extend into are arranged at the bottom end of the upper die (13) in a penetrating manner;

and the driving piece is used for driving the upper die (13) to move up and down.

2. The device for detecting the ejector pin of the functional test fixture according to claim 1, wherein: go up the bottom of mould (13) and be located the both sides of through-hole (14) and all be provided with transmitter (2) and receiver (21), transmitter (2) and receiver (21) one-to-one.

3. The device for detecting the ejector pin of the functional test fixture according to claim 1, wherein: the mounting is including installation piece (3), installation piece (3) are cylindrical setting, installation piece (3) set up on lower mould (11), the top of installation piece (3) is provided with mounting groove (31) of placing thimble (12), be provided with a plurality of connecting holes (32) that are linked together with mounting groove (31) on the lateral wall of installation piece (3), be provided with dead lever (33) in connecting hole (32), the one end of dead lever (33) is stretched into mounting groove (31) and is offset with thimble (12).

4. The device for detecting the ejector pin of the functional test fixture according to claim 3, wherein: the inner wall of the mounting groove (31) is provided with a butt joint groove (34) communicated with the connecting hole (32), a butt joint block (35) is arranged in the butt joint groove (34), one end of the butt joint block (35) is abutted against the ejector pin (12), and the other end of the butt joint block (35) is connected with the fixing rod (33).

5. The device for detecting the ejector pin of the functional test fixture according to claim 4, wherein: and a rubber pad (36) is arranged at the other end of the abutting groove (34) far away from the fixing rod (33).

6. The device for detecting the ejector pin of the functional test fixture according to claim 3, wherein: the utility model discloses a supporting connection structure of a fixing rod, including dead lever (33), butt piece (35), connecting hole (32) and thimble (12), the one end that butt piece (35) was kept away from in dead lever (33) is worn out connecting hole (32) and is hemispherical, be provided with in connecting hole (32) and be used for applying the elastic component towards butt piece (35) to dead lever (33), it is connected with outer ring (42) to rotate on the lateral wall of installation piece (3), outer ring (42) are used for being hemispherical tip counterbalance and drive dead lever (33) and thimble (12) counterbalance with dead lever (33).

7. The device for detecting the ejector pin of the functional test fixture according to claim 6, wherein: the outer side wall of the outer ring (42) is provided with a lug (43).

8. The device for detecting the ejector pin of the functional test fixture according to claim 6, wherein: and a baffle (44) is arranged on the outer side wall of the mounting block (3) and above the fixing rod (33).