CN219736730U

CN219736730U - Ceramic circuit board gas tightness testing arrangement and test system

Info

Publication number: CN219736730U
Application number: CN202320987566.2U
Authority: CN
Inventors: 孙业民; 张永林; 刘泽
Original assignee: Dongguan Zhihao Photoelectric Technology Co ltd; Dongguan Zhihao Surface Treatment Co ltd
Current assignee: Dongguan Zhihao Photoelectric Technology Co ltd; Dongguan Zhihao Surface Treatment Co ltd
Priority date: 2023-04-26
Filing date: 2023-04-26
Publication date: 2023-09-22
Anticipated expiration: 2033-04-26

Abstract

The utility model discloses a ceramic circuit board air tightness testing device and a testing system, wherein the testing device comprises a testing jig and an air channel, the testing jig comprises a second jig and a first jig, the second jig is provided with a sealing ring, the second jig is provided with an air outlet, and the first jig, the sealing ring and the ceramic circuit board are matched to form a closed space; when the through holes on the ceramic circuit board are not tightly filled, gas flows out from the through holes and the space between the first jig and the second jig, the gas pressure in the gas circuit is gradually reduced, and when the through holes on the ceramic circuit board are tightly filled, the gas pressure in the gas circuit is unchanged; according to the utility model, the first jig and the second jig which are matched with each other are arranged to seal and press the ceramic circuit board, the gas circuit is arranged to be matched with the first jig and the second jig to detect the air tightness of the through hole of the ceramic circuit board, and meanwhile, the external picking and placing mechanical arm is used for automatically picking and placing the ceramic circuit board to complete a series of detection procedures, so that the operations such as feeding and discharging are not needed manually, the labor is saved, and the production efficiency is greatly improved.

Description

Ceramic circuit board gas tightness testing arrangement and test system

Technical Field

The utility model relates to the technical field of air tightness detection, in particular to a ceramic circuit board air tightness testing device and a ceramic circuit board air tightness testing system.

Background

In recent years, in order to meet the stability of operation of semiconductor devices and circuits, a higher demand has been placed on chip carriers. Ceramic circuit boards are widely used in the fields of power electronics, electronic packaging, hybrid microelectronics, and the like because of their excellent thermal properties, microwave properties, mechanical properties, and higher reliability. The substrate of ceramic circuit board is aluminium oxide or silicon nitride, and the circuit pattern is made into to the cladding of front and back metal layer on the substrate, and the circuit of front and back is switched on through the via hole that bores on the substrate, because the via hole is filled through the mode of chemical copper filling, forms solid copper post under the ideal state, if not filling up, when the encapsulation process uses epoxy to encapsulate, can lead to the encapsulation to glue and flow to the back through the via hole, influences the back subsides dress of PCB board, probably can lead to the inefficacy of lamp pearl finally. Based on this, there is a need to provide an air tightness testing device capable of effectively testing the air tightness of a ceramic circuit board, and in particular, there is a need to provide an air tightness testing system capable of automatically taking and placing materials and completing a series of detection procedures.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to solve the technical problems that: the ceramic circuit board air tightness testing device and system can effectively detect the air tightness of the ceramic circuit board.

In order to solve the technical problems, the utility model adopts a technical scheme that: the utility model provides a ceramic circuit board gas tightness testing arrangement and test system for whether the via hole on the test ceramic circuit board is filled tightly, including test jig and the gas circuit of intercommunication test jig, test jig includes the second tool and can pressfitting in first tool on the second tool, be provided with the sealing washer on the one side of second tool towards the ceramic circuit board corresponding to ceramic circuit board periphery department, be provided with the venthole in the region that lies in the sealing washer on the second tool, first tool is used for pressing the ceramic circuit board that is surveyed on the sealing washer so that ceramic circuit board, sealing washer and the region in the sealing washer form airtight space; when the via hole on the ceramic circuit board is not tightly filled, gas flows out of the via hole and the space between the first jig and the second jig in sequence, the gas pressure in the gas circuit is gradually reduced, and when the via hole on the ceramic circuit board is tightly filled, the gas pressure in the gas circuit is unchanged.

Further, the gas circuit includes the trachea, along the gas direction of delivery set gradually in first valve body, gas storage unit on the trachea and be used for detecting the interior gaseous pressure's of trachea detecting element.

Further, the gas circuit further comprises a second valve body arranged on the gas pipe between the gas storage unit and the testing jig, and the detection unit is arranged on the gas pipe between the second valve body and the testing jig.

Further, the valve further comprises a control unit electrically connected with the first valve body, the second valve body and the detection unit.

Further, still include the test cabinet, the test cabinet has one and is used for holding the chamber that holds of gas circuit, be provided with on the chamber wall that holds the chamber and be used for the confession the air source interface of the air supply intercommunication of gas circuit, the top surface that holds the chamber forms the mounting platform that is used for installing test fixture, be provided with the air supply circuit intercommunication extremely on the mounting platform the through-hole of test fixture, test fixture's second tool set up in on the mounting platform, first tool set up in the top of second tool.

Further, still including set up in track and linear driving mechanism on the mounting platform, a part of track is located under the first tool in order to form the position of working, lie in on the track another part outside the position of working forms the material loading level, the second tool slide set up in on the track, linear driving mechanism is used for the drive the second tool is in go up material level and the position of working between reciprocating motion.

Further, a storage mechanism is further arranged on the test cabinet, and comprises an incoming material storage area for storing the ceramic circuit boards, an OK material storage area for storing the ceramic circuit boards passing the test, an NG material storage area for storing the ceramic circuit boards failing the test and a partition paper storage area for storing partition paper between two adjacent ceramic circuit boards.

Further, the storage mechanism further comprises a mounting plate, and the incoming material storage area, the OK material storage area, the NG material storage area and the partition paper storage area are all formed by encircling a plurality of upright rods arranged on the mounting plate.

Further, the mounting plate is limited to be capable of moving along the vertical direction, the material storage mechanism further comprises a height adjusting component for adjusting the height of the mounting plate, the height adjusting component comprises two fixing plates which are arranged on one side of the test cabinet and distributed up and down, a screw rod arranged between the two fixing plates in a rotating mode, a sliding block in threaded connection with the screw rod and a driving unit for driving the screw rod to rotate, and the sliding block is connected with the mounting plate to adjust the height of the mounting plate.

Further, the device also comprises a pick-and-place manipulator which is used for picking and placing a given product in the test process and moving according to a given route.

The ceramic circuit board air tightness testing device and the ceramic circuit board air tightness testing system have the following beneficial effects: the first jig and the second jig which are matched with each other are arranged to seal and press the ceramic circuit board, the gas circuit communicated with the test jig is arranged to be matched with the first jig and the second jig to carry out gas tightness detection on the through hole of the ceramic circuit board, meanwhile, the pick-and-place manipulator is arranged outside to automatically pick and place the ceramic circuit board, a series of detection procedures are completed, manual feeding, discharging and other operations are not needed, labor is saved, and production efficiency is greatly improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

FIG. 1 is a schematic diagram of an embodiment of a ceramic circuit board air tightness test system according to the present utility model;

FIG. 2 is a schematic diagram of a second embodiment of the system for testing the air tightness of a ceramic circuit board according to the present utility model;

FIG. 3 is a schematic diagram of the moving plate, the first jig, and the second jig according to an embodiment of the air tightness test system for a ceramic circuit board of the present utility model;

FIG. 4 is a schematic diagram of the moving plate, the clamping block, and the left clamping tongue in an embodiment of the air tightness test system for a ceramic circuit board according to the present utility model;

FIG. 5 is a schematic diagram of the first fixture, the left push rod, the right push rod, and the like in an embodiment of the ceramic circuit board air tightness test system according to the present utility model;

FIG. 6 is a schematic diagram of the second fixture, the placement table, and the support block in an embodiment of the system for testing the air tightness of a ceramic circuit board according to the present utility model;

FIG. 7 is a schematic diagram of the working principle of the air circuit in an embodiment of the air tightness test system for a ceramic circuit board according to the present utility model;

fig. 8 is a schematic view of a partial structure at a in fig. 2.

The meaning of the reference numerals in the drawings are:

a manipulator 1;

the test cabinet 2, the accommodating cavity 21, the instrument cabinet 22, the left side wall 221, the right side wall 222, the rear side wall 223, the cabinet body 224, the tester 225, the vertical driving unit 226, the mounting bracket 227, the movable plate 228, the air source interface 23, the first valve body 231, the air storage unit 232, the second valve body 233, the detection unit 234, the power source interface 24, the track 25 and the linear driving mechanism 26;

the testing fixture 3, the second fixture 31, the air inlet hole 311, the placing table 312, the sealing ring 313, the air outlet hole 314, the limiting block 315, the supporting block 316, the first fixture 32, the boss 321, the through groove 322 and the convex rib 323;

the storage mechanism 4, the height adjusting component 41, the fixing piece 411, the screw 412, the sliding block 413, the driving unit 414, the mounting plate 42, the upright rod 43, the sliding table 44, the incoming material storage area 45, the OK material storage area 46, the NG material storage area 47 and the partition paper storage area 48;

the upper locking component 5, the clamping block 51, the first elastic clamping component 52, the left assembly cavity 521, the left opening 522, the left slide 523, the left elastic member 524, the left clamping tongue 525, the second elastic clamping component 53, the right assembly cavity 531, the right opening 532, the right slide 533, the right elastic member 534 and the right clamping tongue 535;

the lower lock assembly 6, the accommodation groove 61, the left insertion groove 62, the right insertion groove 63, the left push piece 64, the left insertion groove 641, the left push rod 642, the right push piece 65, the right insertion groove 651, the right push rod 652, the left abutment surface 66, and the right abutment surface 67.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

Referring to fig. 1, the ceramic circuit board air tightness test system of the present utility model is used for testing whether the via hole on the ceramic circuit board is tightly filled, and the ceramic circuit board air tightness test system includes a ceramic circuit board air tightness test device (hereinafter referred to as an air tightness test device) and a pick-and-place manipulator (hereinafter referred to as a manipulator 1). The ceramic circuit board air tightness testing device comprises a testing cabinet 2, a testing jig 3 arranged on the testing cabinet 2, an air path communicated with the testing jig 3 and a material storage mechanism 4 arranged on one side of the testing cabinet 2, wherein the testing jig 3 comprises a second jig 31 and a first jig 32 which is arranged right above the second jig 31 and can be tightly pressed on the second jig 31. The manipulator 1 is used for taking and placing a given product in a testing process and moving according to a given route, namely, the manipulator 1 is used for grabbing a ceramic circuit board according to a set control program and moving to the position of the testing jig 3 and then putting down the ceramic circuit board, and is also used for grabbing the ceramic circuit board at the position of the testing jig 3 to a corresponding target position according to a testing result after the testing jig 3 is tested. For example, when the test result is failed test (NG), the manipulator 1 grabs the ceramic circuit board which fails test (hereinafter referred to as NG material) to the NG material storage area 47, and when the test result is passed test (OK), the manipulator 1 grabs the ceramic circuit board which passes test (hereinafter referred to as OK material) to the OK material storage area 46.

The test cabinet 2 includes a housing cavity 21 for housing the air path and an instrument cabinet 22 erected above the housing cavity 21, and the second jig 31 and the first jig 32 are respectively assembled on the top surface of the housing cavity 21 and the bottom surface of the instrument cabinet 22. The receiving chamber 21 has a portion that projects forward beyond the instrument cabinet 22, i.e., the instrument cabinet 22 overlaps the rear half of the receiving chamber 21 on a horizontal projection plane. The side wall of the accommodating cavity 21 is provided with an air source interface 23 communicated with the air path inside the accommodating cavity and a power source interface 24 for externally connecting the device with a power source, and the air path is communicated with an external air source through the air source interface 23 and is electrically connected with the external power source through the power source interface 24. The top surface of the accommodating chamber 21 is formed with a mounting platform provided with at least one set of rails 25 for assembling the second jig 31 and at least one set of linear driving mechanisms 26 combined with the at least one set of rails 25. It should be understood that the number of sets of the track 25 and the linear driving mechanism 26 may be determined according to the requirements of different embodiments, for example, four sets of the track 25 and four sets of the linear driving mechanism 26 are designed to realize a four-station simultaneous test function.

A part of the rail 25 is located under the first jig 32 to form a working position where the second jig 31 and the first jig 32 can be pressed together, and the rest of the rail 25 except for the working position forms a loading position. In this embodiment, the working position is formed at the position of the rail 25 directly below the instrument cabinet 22, and the portion of the rail that is beyond the instrument cabinet 22 forward is limited to the loading level, so that the instrument cabinet 22 can be prevented from shielding the loading level, and when the manipulator 1 loads and unloads, the first jig 32 above does not form shielding to the manipulator 1, so that loading and unloading are facilitated. The linear driving mechanism 26 is used for driving the second jig 31 to reciprocate between the loading position and the working position, so that the second jig 31 can be switched between the loading position and the working position, and the second jig 31 can be located on the loading position and the working position.

Referring to fig. 2 and 3, the testing cabinet 2 includes a left side wall 221, a right side wall 222, a rear side wall 223, and a cabinet body 224 disposed at the upper ends of the three side walls, wherein a tester 225 including electrical components such as a control unit and a display screen, and a vertical driving unit 226 for driving the first jig 32 to lift along a vertical direction are disposed in the cabinet body 224. The first jig 32 is mounted on the bottom surface of the cabinet 224 through a mounting rack 227 and is connected to the lower end of the vertical driving unit 226. In the illustrated embodiment, the vertical driving unit 226 is a hydraulic cylinder, an output shaft of the hydraulic cylinder penetrates through an upper wall of the mounting frame 227 downwards and is connected with a moving plate 228, and an upper locking assembly 5 for detachably connecting with the first jig 32 is arranged at a lower portion of the moving plate 228. The upper locking assembly 5 includes a clamping block 51 fixedly disposed in the middle of the lower end of the moving plate 228, and a first elastic clamping assembly 52 and a second elastic clamping assembly 53 respectively disposed on the left side and the right side of the clamping block 51.

Referring to fig. 4, the first elastic clamping assembly 52 includes a left assembling cavity 521 disposed in the middle of the left side wall 221 of the clamping block 51, the left assembling cavity 521 has a left opening 522 penetrating the clamping block 51 toward the left side, the inner diameter of the left opening 522 is smaller than that of the left assembling cavity 521, a left sliding piece 523 is slidably disposed in the left assembling cavity 521 in the left and right directions, the diameter of the left sliding piece 523 is smaller than that of the left assembling cavity 521 and larger than that of the left opening 522 so as to prevent the left sliding piece 523 from sliding out from the left opening 522, a left elastic member 524 is fixedly disposed between the right side surface of the left sliding piece 523 and the right bottom wall of the left assembling cavity 521, in the illustrated embodiment, the elastic member is a spring, the left side of the left sliding piece 523 is provided with a left sliding tongue capable of movably penetrating the left opening 522, and the lower end of the left sliding tongue is configured to gradually move from the left to the right from the high to the low to the left under the action of an external force applied to the left assembling cavity 525.

The second elastic clamping assembly 53 includes a right assembling cavity 531 disposed in the middle of the right side wall 222 of the clamping block 51, the right assembling cavity 531 has a right opening 532 penetrating the clamping block 51 towards the right side, the inner diameter of the right opening 532 is smaller than the inner diameter of the right assembling cavity 531, a right sliding vane 533 is slidably disposed in the right assembling cavity 531 from side to side, the diameter of the right sliding vane 533 is smaller than the inner diameter of the right assembling cavity 531 and larger than the inner diameter of the right opening 532 to avoid the sliding of the right sliding vane 533 from the right opening 532, a right elastic member 534 is fixedly disposed between the left side surface of the right sliding vane 533 and the left bottom wall of the right assembling cavity 531, in the illustrated embodiment, the elastic member is a spring, a right clamping tongue 535 capable of movably penetrating the right opening 532 is disposed on the right side of the right assembling cavity 531, and the lower end of the right clamping tongue 535 is gradually disposed from right to left to low to so as to facilitate the inner movement of the right sliding vane 533 under the action of the external force.

Referring to fig. 6, an air inlet hole 311 is provided on a sidewall of the second fixture 31, a surface (upper surface) of the second fixture 31 facing the ceramic circuit board protrudes upwards to form a placement table 312 contoured with the ceramic circuit board, a sealing ring 313 matching with a peripheral dimension of the ceramic circuit board is provided on a peripheral edge of a table top of the placement table 312, and the sealing ring 313 is used to form a sealed space between the ceramic circuit board and the table top of the placement table 312. The table surface of the placement table 312 is provided with an air outlet hole 314 communicated with the air inlet hole 311, and the air outlet hole 314 is located in the inner area of the sealing ring 313. Four limiting blocks 315 are arranged on the second jig 31 and located at the outer sides of four corners of the placing table 312, and the heights of the four limiting blocks 315 are slightly higher than the height of the sealing ring 313 so as to achieve the limiting effect on the ceramic circuit board and the first jig 32. Two supporting blocks 316 are arranged on two opposite sides of the second jig 31 to support and limit the first jig 32 when the first jig 32 is pressed onto the second jig 31.

The lower end of the first jig 32 is provided with a boss 321 matched with the placement table 312, the lower end of the boss 321 is uniformly provided with a plurality of through grooves 322 which are uniformly distributed, the through grooves 322 transversely or longitudinally penetrate through the boss 321, a convex rib 323 for spacing the two through grooves 322 is formed between every two adjacent through grooves 322, and on a horizontal projection plane, the convex rib 323 is staggered with the air outlet 314, that is, the through grooves 322 coincide with the air outlet 314. The upper end face of the first jig 32 is provided with a lower locking assembly 6 for matching with the upper locking assembly 5, the lower locking assembly 6 comprises a containing groove 61 formed in the middle of the upper end face of the first jig 32, a left slot 62 and a right slot 63 respectively formed in the left side wall and the right side wall of the containing groove 61 and communicated with the containing groove 61, and a left pushing piece 64 and a right pushing piece 65 respectively arranged in the positions of the left slot 62 and the right slot 63, the containing groove 61 is located in a left abutting face 66 formed on a part of the side wall of the upper portion of the left slot 62, and the containing groove 61 is located in a right abutting face 67 formed on a part of the side wall of the upper portion of the right slot 63.

Referring to fig. 5, the left pushing member 64 includes a left slot 641 having one end coaxially connected to the left slot 62, the other end penetrating through the left side surface of the first jig 32, and a left push rod 642 slidably disposed in the left slot 641, wherein the inner end of the left push rod 642 can enter the left slot 62 inwards, and the outer end is exposed out of the left side surface of the first jig 32. The right pushing member 65 includes a right sliding groove 651 with one end coaxially communicated with the right slot 63, and the other end penetrating through the right side surface of the first jig 32, and a right pushing rod 652 slidably disposed in the right sliding groove 651, wherein the inner end of the right pushing rod 652 can enter the right slot 63 inwards, and the outer end is exposed on the right side surface of the first jig 32.

Referring to fig. 7, the air path includes an air pipe with one end connected to the air source interface 23 and the other end connected to the air inlet of the second fixture 31, a first valve body 231 sequentially disposed on the air pipe along the air conveying direction for controlling the air inlet of the air pipe, an air storage unit 232 for storing the air conveyed by the air pipe, a second valve body 233 for controlling the air outlet condition of the air storage unit, and a detection unit 234 for detecting the air pressure in the air pipe. The air pipe, the first valve 231, the air storage unit 232, the second valve 233, and the detection unit 234 are all disposed in the accommodating cavity 21 of the test cabinet 2 and electrically connected to the tester 225.

Referring to fig. 8, the storage mechanism 4 includes a mounting plate 42 slidably disposed on a side wall of the testing cabinet 2 through a height adjusting assembly 41, and a vertical rod 43 enclosing and isolating an upper end surface of the mounting plate 42 into a plurality of areas. The utility model discloses a ceramic circuit board, including mounting panel 42, test cabinet 2, including mounting panel 42, slip table 2 lateral wall, slip table 44 is close to the fixed stopper 315 that is equipped with in one side of holding chamber 21, stopper 315 with the spacing groove phase-match is located in the spacing inslot portion, a plurality of pole setting 43 are all vertical locate mounting panel 42 up end, a plurality of pole setting 43 will mounting panel 42 up end divide into four all with ceramic circuit board size assorted different regions, be respectively be the incoming material storage area 45 that is used for storing the ceramic circuit board that awaits measuring, be used for storing the OK material storage area 46 of passing the ceramic circuit board of test, be used for storing the NG material storage area 47 of the ceramic circuit board that does not pass the test and be used for storing the spacer between two adjacent ceramic circuit boards and store the district 48.

The height adjusting assembly 41 comprises two fixing plates 411 which are arranged on one side of the test cabinet 2 and distributed up and down, a screw 412 which is rotatably arranged between the two fixing plates 411, a sliding block 413 which is in threaded connection with the screw 412, and a driving unit 414 which is used for driving the screw 412 to rotate, wherein the driving unit 414 is arranged on the side wall of the test cabinet 2 and positioned on the upper portion of the two fixing plates 411, an output shaft of the driving unit 414 penetrates through the fixing plates 411 positioned on the upper portion downwards and is in transmission connection with the screw 412, a screw hole is formed in the middle of the sliding block 413 so that the driving unit can be in threaded connection with the screw 412, and the sliding block 413 is connected between one side wall of the mounting plate 42 close to the mounting plate 42 so that the sliding block 413 can drive the mounting plate 42 to move up and down to adjust the height of the mounting plate 42.

The working mode of the air tightness test system of the ceramic circuit board is as follows: in the initial state, the output shaft of the hydraulic cylinder is retracted, the mounting plate 42 and the first jig 32 are positioned at the upper part of the mounting space, and the second jig 31 is positioned at the feeding area of the front end part of the track 25; when the device is used, an external power supply is connected to the power interface 24, the first valve body 231 and the second valve body 233 are both in an open state, a certain number of ceramic circuit boards are placed in the material supply storage area 45 of the material storage mechanism 4, and the power supply is started.

The pick-and-place manipulator 1 picks up the ceramic circuit board placed in the incoming material storage area 45, then places the ceramic circuit board on the placement table 312 of the second jig 31, the linear driving mechanism 26 drives the second jig 31 to slide from the feeding position to the working position through the sliding block 413, the output shaft of the hydraulic cylinder stretches out, the mounting plate 42 drives the first jig 32 to move down until a plurality of pressing blocks at the lower end of the first jig downwards compress the ceramic circuit board, at this time, a sealing area is formed among the ceramic circuit board, the sealing ring 313 and the upper end surface of the placement table 312, at this time, gas is output under the accurate control of the detecting unit 234 and sequentially passes through the first valve body 231, the second valve body 233 and the detecting unit 234 to reach the air inlet of the second jig 31, and then the air outlet outputs the air, at this time, the first valve 231 is closed to maintain the pressure balance between the first valve 231, the second valve 233, the detecting unit 234 and the ceramic circuit board to be detected, at this time, the indication of the pressure is displayed on the tester 225, whether the indication of the pressure is reduced, if the indication is not reduced, the air tightness of the ceramic circuit board is good, if the indication is reduced, the air tightness of the air circuit is reduced, the sealing state of the ceramic circuit board is abnormal, after the detection is completed, the output shaft of the hydraulic cylinder is retracted to bring the first jig 32 back to the initial position, the second jig 31 is also driven by the linear driving mechanism 26 to return to the initial feeding position, the pick-and-place manipulator 1 picks up the ceramic circuit board, places the ceramic circuit board in the OK material storage area 46 or the NG material storage area 47 according to the detected condition, then, the pick-and-place manipulator 1 picks up and places the spacer paper on the upper part of the next ceramic circuit board to be tested in the spacer paper storage area 48, then places the next ceramic circuit board to be tested on the second jig 31, and the above steps are repeated.

The user can also adjust the height of the mounting plate 42 through the height adjusting component 41, and start the driving unit 414, such as a motor, the output shaft of which rotates to drive the screw 412 to rotate, because the sliding block 413 is fixedly connected with one side of the mounting plate 42, and the mounting plate 42 is connected with one side of the test cabinet 2 through the cooperation of the sliding table 44, the limiting block 315 and the limiting groove, the sliding block 413 does not rotate along with the rotation of the screw 412, but linearly moves up and down along with the forward and reverse rotation of the screw 412, so as to drive the mounting plate 42 to move up and down.

Since the first jig 32 may accumulate dust and may be worn or damaged after long-term use, the first jig 32 may be separated from the moving plate 228 to facilitate cleaning, maintenance or replacement by a worker. The first jig 32 and the moving plate 228 are in a connection state, the clamping block 51 is located inside the accommodating groove 61, the left clamping tongue 525 is located inside the left slot 62, the right clamping tongue 535 is located inside the right slot 63, the left elastic member 524 and the right elastic member 534 are both in an extended state, the left push rod 642 is located at the leftmost end of the left sliding groove 641 under the pushing of the left clamping tongue 525, and the right push rod 652 is located at the rightmost end of the right sliding groove 651 under the pushing of the right clamping tongue 535.

When the first jig 32 needs to be separated from the moving plate 228, the left push rod 642 and the right push rod 652 are respectively pressed from two sides in the directions approaching each other, at this time, the left push rod 642 moves to the right in the left sliding groove 641 to push the left clamping tongue 525 to move to the right in the left slot 62 and retract into the left assembling cavity 521, at this time, the left elastic member 524 is compressed, and when the left clamping tongue 525 is completely retracted into the left assembling cavity 521, the left clamping tongue 525 is no longer positioned in the left slot 62; the right push rod 652 moves left in the right sliding groove 651 to push the right clamping tongue 535 to move left in the right slot 63 and retract into the right assembling cavity 531, at this time, the right elastic member 534 is compressed, when the right clamping tongue 535 is completely retracted into the right assembling cavity 531, the right clamping tongue 535 is no longer located in the right slot 63, and then the first jig 32 moves downward, so that the clamping block 51 is separated from the accommodating groove 61, and the first jig 32 and the moving plate 228 can be separated. When the first jig 32 needs to be connected to the moving plate 228 again, the upper opening of the accommodating groove 61 is aligned with the lower end of the clamping block 51, and then the first jig 32 is pushed upward, at this time, the left clamping tongue 525 is retracted into the left assembling cavity 521 under the cooperation of the inclined surface thereof and the left abutting surface 66, the right clamping tongue 535 is retracted into the right assembling cavity 531 under the cooperation of the inclined surface thereof and the right abutting surface 67, and when the left opening 522 is aligned with the opening of the left inserting groove 62, the right opening 532 is aligned with the opening of the right inserting groove 63, the left clamping tongue 525 is ejected out of the left assembling cavity 521 under the resilience of the left resilient member 524, and then is clamped into the left inserting groove 62, and the right clamping tongue 535 is ejected out of the right assembling cavity 531 under the resilience of the right resilient member 534, and then is clamped into the right inserting groove 63, and the first jig 32 is connected to the moving plate 228.

Compared with the prior art, the ceramic circuit board air tightness testing device and the ceramic circuit board air tightness testing system are provided with the first jig and the second jig which are matched with each other to seal and press the ceramic circuit board, the air passage communicated with the testing jig is arranged to detect the air tightness of the through hole of the ceramic circuit board, and meanwhile, the pick-and-place mechanical arm is arranged to automatically pick and place the ceramic circuit board, so that a series of testing procedures are completed, the operations such as feeding and discharging are not needed manually, the labor is saved, and the production efficiency is greatly improved.

Claims

1. The utility model provides a ceramic circuit board gas tightness testing arrangement for whether the via hole on the test ceramic circuit board fills tightly, its characterized in that: the device comprises a test jig and an air path communicated with the test jig, wherein the test jig comprises a second jig and a first jig which can be pressed on one side of the second jig, a sealing ring is arranged at the position, corresponding to the periphery of the ceramic circuit board, of one surface of the second jig, facing the ceramic circuit board, an air outlet hole is arranged in the region, located in the sealing ring, of the second jig, and the first jig is used for pressing the ceramic circuit board to be tested on the sealing ring so as to enable the ceramic circuit board, the sealing ring and the region in the sealing ring to form a closed space; when the via hole on the ceramic circuit board is not tightly filled, gas flows out of the via hole and the space between the first jig and the second jig in sequence, the gas pressure in the gas circuit is gradually reduced, and when the via hole on the ceramic circuit board is tightly filled, the gas pressure in the gas circuit is unchanged.

2. The ceramic circuit board air tightness test device according to claim 1, wherein: the gas circuit comprises a gas pipe, a first valve body, a gas storage unit and a detection unit, wherein the first valve body, the gas storage unit and the detection unit are sequentially arranged on the gas pipe along the gas conveying direction and are used for detecting the pressure of gas in the gas pipe.

3. The ceramic circuit board air tightness test device according to claim 2, wherein: the gas circuit also comprises a second valve body arranged on the gas pipe between the gas storage unit and the testing jig, and the detection unit is arranged on the gas pipe between the second valve body and the testing jig.

4. The ceramic circuit board air tightness test device according to claim 3, wherein: the control unit is electrically connected with the first valve body, the second valve body and the detection unit.

5. The ceramic wiring board airtightness test apparatus according to any one of claims 1 to 4, wherein: still include the test cabinet, the test cabinet has one and is used for holding the chamber that holds of gas circuit, be provided with on the chamber wall that holds the chamber and be used for the confession the air source interface of air supply intercommunication of gas circuit, the top surface that holds the chamber forms the mounting platform that is used for installing test fixture, be provided with the air supply circuit intercommunication extremely on the mounting platform the through-hole of test fixture, test fixture's second tool set up in on the mounting platform, first tool set up in the top of second tool.

6. The ceramic circuit board air tightness test device according to claim 5, wherein: the mounting platform is characterized by further comprising a track and a linear driving mechanism, wherein the track is arranged on the mounting platform, one part of the track is positioned under the first jig to form a working position, the other part of the track, which is positioned outside the working position, forms a loading position, the second jig is arranged on the track in a sliding manner, and the linear driving mechanism is used for driving the second jig to reciprocate between the loading position and the working position.

7. The ceramic circuit board air tightness test device according to claim 5, wherein: the test cabinet is also provided with a storage mechanism, wherein the storage mechanism comprises an incoming material storage area for storing the ceramic circuit boards, an OK material storage area for storing the ceramic circuit boards passing the test, an NG material storage area for storing the ceramic circuit boards failing the test and a partition paper storage area for storing partition papers of two adjacent ceramic circuit boards.

8. The ceramic circuit board airtightness test device according to claim 7, wherein: the storage mechanism further comprises a mounting plate, and the incoming material storage area, the OK material storage area, the NG material storage area and the paper separating storage area are all formed by encircling a plurality of upright rods arranged on the mounting plate.

9. The ceramic circuit board air tightness test device according to claim 8, wherein: the mounting plate is limited to be capable of moving along the vertical direction, the storage mechanism further comprises a height adjusting component used for adjusting the height of the mounting plate, the height adjusting component comprises two fixing plates which are arranged on one side of the test cabinet and distributed up and down, a screw rod which is rotatably arranged between the two fixing plates, a sliding block which is in threaded connection with the screw rod, and a driving unit used for driving the screw rod to rotate, and the sliding block is connected with the mounting plate to adjust the height of the mounting plate.

10. The utility model provides a ceramic circuit board gas tightness test system which characterized in that: a ceramic circuit board airtightness test apparatus according to any one of claims 1 to 9 and a pick-and-place robot for picking and placing a predetermined product and moving according to a predetermined route during the test.