CN115774130A - FPC hinders test equipment a little - Google Patents
FPC hinders test equipment a little Download PDFInfo
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- CN115774130A CN115774130A CN202211563968.6A CN202211563968A CN115774130A CN 115774130 A CN115774130 A CN 115774130A CN 202211563968 A CN202211563968 A CN 202211563968A CN 115774130 A CN115774130 A CN 115774130A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention belongs to the technical field of FPC board testing, and particularly relates to FPC micro-resistance testing equipment which comprises a transmission unit, a testing unit and a display unit, wherein the transmission unit comprises a transmission channel, a transmission belt and a transmission block, the transmission belt is erected in a U-shaped transmission groove on the transmission channel, and the transmission block is arranged on the transmission belt and used for transmitting and fixing an FPC board to be tested; according to the invention, the transmission block is arranged on the transmission belt, the limiting groove is arranged on the transmission block, and after production is finished, the FPC board is embedded into the limiting groove through tools such as a manual tool or an automatic mechanical arm; through the effect of gag lever post and unsteady hole for the FPC board receives stable fixed in the spacing groove, can not receive stronger stress again and lead to warping, thereby makes the testing process of FPC board high-efficient more smoothly, and has reduced and has placed and the wearing and tearing and the destruction that the vibration in the transportation slided and wipe the FPC board and probably cause at the FPC board.
Description
Technical Field
The invention belongs to the technical field of FPC board testing, and particularly relates to FPC micro-resistance testing equipment.
Background
The FPC board belongs to a flexible circuit board and a flexible circuit board, and is widely applied due to the excellent characteristics of light weight, thin thickness and free bending and folding; after production is finished, in order to ensure normal work of the product, a factory test process is required, qualified products are output in the process, and defective products are recycled; in the testing process, various testing devices such as a micro resistance meter and the like are often required to be used, contact with a specific circuit part or an electronic element on the FPC board through a testing probe or a jointing clamp, and test the electrifying reaction data of the FPC board, so as to judge whether the FPC board can normally work;
in the past production test process, the FPC board on the production line is often taken off manually, then the manual test is carried out by using test equipment, and after the manual test is qualified, the FPC board is conveyed to the next procedure, and the procedure is repeated; the manual testing process is not only low in efficiency, but also the testing accuracy degree of the manual testing process greatly depends on the experience state of workers in the testing process, and in the long-term repeated working process, tired workers may have working errors, so that the testing accuracy and the product quality are fluctuated, and further the product quality control of the FPC board is unstable;
in the modern large-scale production process, in order to effectively improve the efficiency, automatic detection equipment is usually adopted to automatically output a detection result, and whether the product is qualified or not is intelligently judged through a computer, so that the detection efficiency is obviously improved, and the stable and controllable detection accuracy is obtained; in the feeding process of the FPC board detection in the prior art, generally, an intelligent manipulator automatically grabs the FPC board to be detected and moves the FPC board to a detection position, automatic detection equipment plays a role to start detection, and testers find that the FPC board is easy to deform in the grabbing process of the manipulator in the grabbing process, a board body has strong deformation resistance, but upper circuit elements are likely to be dislocated along with deformation in the deformation process of the board body, so that in the detection process, the positioning of a test probe 221 for detection is likely to be influenced, the circuit elements to be detected cannot be accurately identified, the accuracy of a test result is affected, the manipulator feeding process is high in equipment cost, complex in maintenance, high in production cost and not suitable for small and medium-sized production factories;
in the other existing detection mode, test equipment is directly installed on an FPC (flexible printed circuit) board production transport line, and the FPC boards passing through continuously are directly tested on the transport line; thus, the FPC board needs to be fixed on the transport line and moves synchronously; the existing fixing modes are mainly rigid fixing, the edge part of the FPC board is easily abraded and deformed under the stress action in the fixing process in the fixing and transporting process, and the deformed FPC board is difficult to identify a contact point to be tested and corresponding to testing equipment in the testing process, so that the normal running of the testing process is influenced.
Disclosure of Invention
In order to make up the deficiency of the prior art, the technical problem is solved; the invention provides a micro-resistance testing device for an FPC (flexible printed circuit).
The technical scheme adopted by the invention for solving the technical problems is as follows: the FPC micro-resistance test equipment comprises a transmission unit, a test unit and a display unit, wherein the transmission unit comprises a transmission channel, a transmission belt and a transmission block, the transmission belt is erected in a U-shaped transmission groove on the transmission channel, and the transmission block is arranged on the transmission belt and used for transmitting and fixing an FPC board to be tested;
the test unit comprises a test machine body and a test block, wherein the test machine body is arranged on the transmission channel and is positioned on the upper side of the transmission belt; the test block is arranged in the inner cavity of the test machine body and is connected with the first moving assembly on the test machine body; the bottom of the test block is provided with a test probe which is used for outputting test data after contacting with the FPC board to be tested;
the display unit comprises a display body, the display body is arranged on one side of the test body and is electrically connected with the test body, and an interactive interface and an operation button are arranged on the display body and used for adjusting the operation of the test equipment;
the transmission block is provided with a limiting groove, and the FPC board is embedded into the limiting groove; the bottom of the transmission block is provided with a limiting cavity, inflation equipment is arranged in the limiting cavity, the bottom of the limiting groove is provided with a floating hole, and the floating hole is communicated with the limiting cavity;
and the upper surface of the bottom of the limiting groove is provided with a limiting rod, and the limiting rod is embedded into a mounting hole in the FPC board to be tested.
Preferably, a limiting air bag is nested and mounted on the outer side of the limiting rod, and the diameter of the cross section of the limiting air bag in the horizontal direction is smaller than that of a mounting hole in the FPC board to be tested;
the limiting rod is of a tubular structure and is communicated with the corresponding floating hole; and air guide holes are uniformly formed in the side wall of the limiting rod and communicated with the inside of the limiting rod.
Preferably, the outer side surface of the limit airbag is provided with an annular protrusion, the outer side surface of the annular protrusion is arc-shaped, and the annular protrusion is distributed on the limit airbag along the vertical direction.
Preferably, a positioning hole is formed in the position, facing the limiting rod, of the test board, a pressure sensor is arranged inside the positioning hole, and the positioning hole is matched with the end of the limiting rod to achieve the testing and positioning effects of the FPC board to be tested.
Preferably, the bottom of the limiting rod is embedded into the floating hole, the bottom of the limiting rod is detachably connected with the floating hole, and the interior of the limiting rod is communicated with the corresponding floating hole.
Preferably, the part of the outer side of the bottom of the limiting rod, which is in contact with the inner wall of the floating hole, is made of rubber; the surface of the bottom of the limiting groove is a horizontal plane and is subjected to smoothing treatment.
Preferably, the bottom of the limiting groove is provided with a test groove, and the limiting cavities are annular and distributed around the test groove;
a plurality of limiting pipes are arranged on the side wall of the test slot and are communicated with the limiting cavity; the floating holes and the limiting rods are uniformly distributed on the limiting pipe;
a testing opening is formed in the surface of the conveying belt, corresponding to the testing groove, an installation block is arranged on the side wall of the conveying belt, and the end part of the installation block extends into the conveying belt and is located below the testing opening; an auxiliary testing block is arranged at the end part of the mounting block, and an auxiliary probe is arranged on the auxiliary testing block; the auxiliary test block is connected with a second movable assembly arranged on the end part of the mounting block.
Preferably, a limiting frame is arranged on the position, located on the upper side of the limiting pipe, on the inner wall of the limiting groove.
The invention has the following beneficial effects:
1. according to the FPC micro-resistance testing equipment, the transmission block is arranged on the transmission belt, the limiting groove is formed in the transmission block, and after production is finished, the FPC board is embedded into the limiting groove through tools such as manual or automatic mechanical arms; through the effect of gag lever post and unsteady hole for the FPC board receives stable fixed in the spacing groove, can not receive stronger stress again and lead to warping, thereby makes the testing process of FPC board high-efficient more smoothly.
2. According to the FPC micro-resistance testing equipment, the inflating equipment is started, airflow is input towards the inside of the limiting cavity by the inflating equipment, and flows out along the floating hole, so that the air pressure between the FPC board and the bottom surface of the limiting groove is increased, the FPC board is jacked up by the airflow for 3-5mm, only the mounting hole and the limiting rod are in matched contact with each other in the limiting and fixing process of the FPC board in the placing and transporting process, the contact surface between the placed FPC board and the limiting groove is greatly reduced, the abrasion and damage possibly caused by vibration and sliding friction in the placing and transporting process of the FPC board are further reduced, and the integrity of the FPC board in the transporting process is further guaranteed.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a perspective view of the interior of the test body according to the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a cross-sectional view of a test body according to the present invention;
FIG. 5 is a partial enlarged view at B in FIG. 4;
FIG. 6 is a perspective view of a test block in the present invention;
FIG. 7 is a cross-sectional view of a test body in a fifth embodiment of the present invention;
FIG. 8 is an enlarged view of a portion of FIG. 7 at C;
in the figure: the testing device comprises a transmission unit 1, a transmission channel 11, a transmission belt 12, a testing port 121, a transmission block 13, a limiting groove 131, a limiting cavity 132, a floating hole 133, a limiting rod 134, a limiting air bag 135, an air guide hole 136, an annular protrusion 137, a transmission groove 14, a mounting block 141, an auxiliary testing block 142, an auxiliary probe 143, a second moving assembly 144, a limiting frame 145, a testing groove 15, a limiting pipe 151, a testing unit 2, a testing machine body 21, a testing block 22, a testing probe 221, a positioning hole 222, a first moving assembly 23, a display unit 3, a display machine body 31, an interactive interface 311 and an operation button 312.
Detailed Description
In the following, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
a kind of FPC hinders the test equipment a little, as shown in figure 1-3 in the figure of the specification, including transmitting unit 1, test unit 2, display element 3, the transmitting unit 1 includes the transmission channel 11, transport band 12 and transport block 13, the transport band 12 is set up in the U-shaped transmission trough 14 on the transmission channel 11, the transport block 13 is installed on transport band 12, in order to transmit and fix FPC board to be measured;
the test unit 2 comprises a test body 21 and a test block 22, wherein the test body 21 is arranged on the transmission channel 11 and is positioned on the upper side of the transmission belt 12; the test block 22 is arranged in the inner cavity of the test machine body 21 and is connected with a first moving assembly 23 on the test machine body 21; the bottom of the test block 22 is provided with a test probe 221, and the test probe 221 is used for outputting test data after contacting with the FPC board to be tested;
the display unit 3 comprises a display body 31, the display body 31 is installed on one side of the test body 21 and electrically connected with the test body 21, and an interactive interface 311 and an operation button 312 are arranged on the display body 31 for adjusting the operation of the test equipment;
in the existing testing process of the FPC board, various testing devices such as a micro resistance meter and the like are often required to be used, contact with a specific circuit part or an electronic element on the FPC board through a testing probe 221 or a jointing clamp, and test electrifying reaction data of the FPC board, so that whether the FPC board can normally work or not is judged; however, the manual testing process is not only inefficient, but also the accuracy of the testing greatly depends on the experience state of workers in the testing process, and in the long-term repeated working process, tired workers may have working errors, which causes the fluctuation of the testing accuracy and the product quality, and further causes the unstable control of the product quality of the FPC board;
in the automatic detection process, the FPC board is easy to deform in the grabbing process of the manipulator, the FPC board body has strong deformation resistance, but the upper circuit elements are likely to be dislocated along with deformation in the deformation process of the board body, so that in the detection process, the positioning of the test probe 221 for detection is likely to be influenced, the circuit element to be detected cannot be accurately identified, the accuracy of the test result is affected, the manipulator is high in equipment cost in the feeding process, and complex in maintenance, the production cost is improved, and the FPC board is not suitable for small and medium-sized production factories;
in addition, most of the existing fixing modes for the FPC are rigid fixing, so that the edge part of the FPC is easily abraded and deformed under the stress action in the fixing process in the fixing and transporting process, and the deformed FPC is difficult to identify a contact point to be tested, which corresponds to testing equipment, in the testing process, so that the normal running of the testing process is influenced;
therefore, the transmission block 13 is arranged on the transmission belt 12, the limiting groove 131 is arranged on the transmission block 13, and after production is finished, the FPC board is embedded into the limiting groove 131 through tools such as manual or automatic mechanical arms; the bottom of the transmission block 13 is provided with a limiting cavity 132, the limiting cavity 132 is internally provided with inflation equipment, a floating hole 133 is arranged on the limiting groove 131, and the floating hole 133 is communicated with the limiting cavity 132; the upper surface of the bottom of the limiting groove 131 is provided with a limiting rod 134, and the limiting rod 134 is embedded into a mounting hole on the FPC board to be tested; through the action of the limiting rod 134 and the floating hole 133, the FPC board is stably fixed in the limiting groove 131, and meanwhile, the FPC board is not deformed due to strong stress, so that the detection process of the FPC board is smooth and efficient;
the specific working process is as follows: in the production process of the FPC board, when the FPC board which is produced and assembled in the initial step needs to move into the transmission channel 11, the FPC board to be tested is placed in the transmission block 13 on the transmission band 12 by using a manual or mechanical arm, the FPC board is embedded into the limiting groove 131, the limiting rod 134 in the limiting groove 131 is embedded into the mounting hole in the FPC board, the mounting hole is often fixed by a screw when the FPC board is used and mounted in corresponding equipment, so that a mounting hole convenient for fixing the screw is often reserved on the board body of the FPC board, the mounting hole is located in the internal position of the FPC board body, and the mounting hole part even close to the FPC board body is thickened for the stability of the integral mounting of the FPC board, and the structural strength is improved; the vertical cross-sectional area of the limiting groove 131 is larger than that of the FPC board, when the FPC board is fixed in the limiting groove 131, the FPC board cannot be fixed through edge parts which are easy to bend and wear, and the fixing and limiting of the FPC board are realized through the matching of the limiting rod 134 and the mounting hole, so that the integrity and the stability of the FPC board in the transportation and detection process are ensured;
and during the transportation movement, the air-filling device located in the spacing cavity 132 automatically operates, and the air-filling device can be a device capable of supplying air, such as a micro air pump; the air flow is input into the limiting cavity 132 by the air inflation equipment, and the air flow is accumulated in the limiting cavity 132 and flows out along the floating hole 133, so that the air pressure between the FPC board and the bottom surface of the limiting groove 131 is increased, and through a pre-experimental test, the power of the air inflation equipment is ensured to enable the FPC board to be jacked by the air flow for 3-5mm and not to be separated from the limiting rod 134, so that only the mounting hole and the limiting rod 134 are in matched contact in a limiting and fixing way in the placing and transporting process of the FPC board, the contact surface between the placed FPC board and the limiting groove 131 is greatly reduced, the abrasion and damage possibly caused by vibration sliding friction in the placing and transporting process of the FPC board are further reduced, and the integrity of the transportation process of the FPC board is further ensured;
specifically, when the transmission block 13 drives the FPC board to move into the test body 21 along the transmission belt 12 and move to a position right below the test block 22, the transmission belt 12 is automatically controlled to stop running, and the first moving assembly 23 is started at this time, so that the test block 22 moves downwards along a stable motion track until the test probes 221 on the test block 22 contact with the detection contact points on the FPC board and start to detect; the detection data is transmitted to the display body 31, whether the data is qualified or not is automatically judged, the detection result is directly displayed on the interactive interface 311, after the detection is finished, the first moving assembly 23 drives the testing block 22 to move upwards for resetting, and the transmission belt 12 normally moves to bring the next FPC to be detected to the detection position; in the detected FPC board, qualified products can be directly transported to the next procedure, unqualified products can be marked, and then the unqualified products are grabbed and recovered through a manual or automatic mechanical arm to wait for secondary detection and screening;
in the detection process, at this time, the transmission block 13 stops moving, and the FPC board located in the limiting groove 131 and the transmission block 13 are kept relatively still; therefore, in order to ensure the relative stability of the FPC board in the detection process, the micro air pump serving as the inflating equipment is controlled to be started reversely, the air suction process is carried out at the moment, the air suction effect is applied to the lower side gap part of the FPC board through the floating hole 133, so that the FPC board is tightly attached to the bottom surface of the limiting groove 131 under the negative pressure effect of the gap part and is kept relatively fixed, and the FPC board can be more stably and accurately contacted with the downward moving test probe 221 to carry out detection operation;
in addition, the structure and the motion process of the first moving assembly 23 can be implemented in various ways, for example, when a large number of FPC boards of the same type are produced and detected, only the FPC boards with the same structure need to be vertically and downwardly moved in a reciprocating manner, and at this time, an automatic telescopic rod structure can be selected to drive the test block 22 to realize the reciprocating vertical motion; when different types of FPC boards are produced and detected, the corresponding testing block 22 can be selected for detection by replacing different testing blocks 22; or No. one remove subassembly 23 and choose intelligent arm for use, move subassembly 23 and adjust through operation button 312 to No. one to the test probe 221 on the control test piece 22 and the adjustment of FPC board contact point position, thereby adapt to the FPC board of different grade type, improve the suitability of this application.
The second embodiment:
on the basis of the first embodiment, as shown in fig. 1-5 in the drawings of the specification, the limiting air bag 135 is nested and installed on the outer side of the limiting rod 134, and the diameter of the horizontal section of the limiting air bag 135 is smaller than the installation hole on the FPC board to be tested;
the limiting rod 134 is of a tubular structure and is communicated with the limiting cavity 132, and an air valve is installed at the communication part and is controlled by a control terminal inside the test machine body 21; the side wall of the limiting rod 134 is uniformly provided with air guide holes 136, and the air guide holes 136 are communicated with the inside of the limiting rod 134; the inner wall of the contact FPC board mounting hole to be tested is limited and fixed by the limiting air bag 135;
the specific working process comprises the following steps: on the basis of the specific working process in the first embodiment, when the FPC board to be tested is placed inside the limiting groove 131, the limiting rod 134 is embedded into the mounting hole, and because the diameter of the cross section of the limiting air bag 135 in the horizontal direction is smaller than the mounting hole on the FPC board to be tested, when the FPC board to be tested is placed, the mounting hole part on the limiting air bag can be smoothly embedded with the limiting rod 134, and the combination between the FPC board to be tested and the limiting rod 134 is smoothly completed; subsequently, the pneumatic valve is opened automatically, make the air current get into in the gag lever post 134, and flow through air guide hole 136 on the gag lever post 134 lateral wall, make spacing gasbag 135 aerify the inflation, the mounting hole position in close contact with FPC board in the 135 outside surface of the spacing gasbag of inflation, thereby make FPC board mounting hole position receive spacingly, and then make whole FPC board receive spacingly, avoid the FPC board in the transportation, the mounting hole position rocks and strikes gag lever post 134 about on gag lever post 134, cause the mounting hole position damaged, thereby lead to the FPC board to use the installation to receive the influence.
Example three:
on the basis of the second embodiment, as shown in fig. 1-5 in the drawings of the specification, the outer side surface of the limit airbag 135 is provided with a pair of annular protrusions 137, the outer side surface of the annular protrusions 137 is arc-shaped and is subjected to smoothing treatment, and the protrusions are distributed on the limit airbag 135 along the vertical direction;
the specific working process is as follows: on the basis of the specific working process in the second embodiment, in the transportation and feeding process of the FPC board to be tested, the mounting hole part of the FPC board to be tested is in contact with the outer side surface of the inflatable limiting air bag 135 and is limited; however, at the bottom gap of the FPC board to be tested, the air pressure at the bottom gap of the FPC board to be tested is increased due to the air outlet of the floating hole 133, so that the FPC board to be tested tends to move upwards, a part of the mounting hole of the FPC board to be tested may slide on the surface of the contacted limiting air bag 135, and the rest of the mounting hole may not slide, or the sliding distance is small, so that the FPC board to be tested may be distorted in the vertical direction, and the accurate contact between the FPC board to be tested and the testing probe 221 on the testing block 22 is affected;
therefore, the paired annular protrusions 137 on the outer side of the limiting air bag 135 are arranged, after the limiting air bag 135 is inflated and expanded, the annular protrusions 137 are expanded along with the air bag and are in contact with the mounting hole parts of the FPC board to be tested, in the further compression process, the mounting hole parts are compressed and slide in the contact process of the arc-shaped smooth outer surfaces of the annular protrusions 137, and are embedded into the gap parts between the paired annular protrusions 137, so that the mounting hole parts are clamped and fixed, and therefore, in the transportation process, the mounting hole parts on the FPC board to be tested are stably limited in the vertical direction, and the FPC board is kept horizontal; like this when accepting the detection, can control the pneumatic valve and close, and unsteady hole 133 begins to bleed, the FPC board that awaits measuring moves down under the effect of bleeding and hugs closely spacing groove 131 bottom surface, and the mounting hole position also slides down along annular protrusion 137 position under the effect of bleeding, until with spacing groove 131 bottom surface contact, the pneumatic valve is closed and is made gag lever post 134 and the inside atmospheric pressure of spacing gasbag 135 keep invariable in this in-process, spacing gasbag 135 keeps spacing fixed to the mounting hole position equally in the testing process, thereby guarantee that whole FPC board that awaits measuring receives spacing keeping stable in accepting the testing process.
Example four:
on the basis of the third embodiment, as shown in fig. 1-6 in the drawings of the specification, a positioning hole 222 is formed in the position, opposite to the limiting rod 134, of the testing block 22, a pressure sensor is arranged inside the positioning hole 222, and the positioning hole 222 is matched with the end part of the limiting rod 134 to realize the testing and positioning functions of the FPC board to be tested; the stability of the moving track of the test block 22 is detected by the sliding fit of the positioning hole 222 and the end part of the limiting rod 134;
the specific working process comprises the following steps: on the basis of the specific work flow in the third embodiment, in the testing process, the first moving assembly 23 moves back and forth, which may cause equipment abrasion and offset dislocation, and further cause the moving track of the testing block 22 to be unstable, so that the testing result is affected; in order to reduce loss, the problem is timely discovered; therefore, the positioning hole 222 is provided, when the moving track of the test block 22 moving downwards is accurate, the end of the limiting rod 134 will be embedded into the positioning hole 222 and trigger the pressure sensor therein, the signal is transmitted to the display body 31, which indicates the normal operation of the test moving process, and at this time, the test probe 221 contacts with the FPC board to be tested at the same time and starts the detection process;
when the end of the limiting rod 134 is not smoothly embedded into the positioning hole 222, it indicates that the moving track is dislocated, and the detection cannot be smoothly performed at this time, the end of the limiting rod 134 also contacts the bottom surface of the testing block 22 and supports the limiting rod to make the limiting rod difficult to move downwards, a corresponding signal is transmitted to the display body 31 at this time, the operation of the first moving assembly 23 is stopped, an alarm is given out at the same time, a maintainer is reminded to maintain the equipment, and therefore the accuracy of the detection result is guaranteed not to be affected.
Example four:
on the basis of the third embodiment, as shown in fig. 1-6 in the drawings of the specification, the bottom of the limiting rod 134 is embedded into the floating hole 133, the bottom of the limiting rod 134 is detachably connected with the floating hole 133, and the interior of the limiting rod 134 is communicated with the corresponding floating hole 133; the contact part of the outer side of the bottom of the limiting rod 134 and the inner wall of the floating hole 133 is made of rubber;
the specific working process is as follows: on the basis of the specific work flow in the third embodiment, when the limiting rod 134 is installed and arranged, the limiting rod 134 can be directly installed on the floating hole 133 and can be detachably connected, because the positions of the installation holes on the FPC boards to be tested in different types are different, the positions of the limiting rods 134 installed on the floating holes 133 which are uniformly distributed in this way can be adjusted more conveniently, when the FPC boards to be tested in different types are replaced, only the positions of the installation holes on the upper side need to be compared, the corresponding floating holes 133 are determined, and the limiting rods 134 are movably installed on the corresponding floating holes 133, so that the limiting and fixing of the new type of FPC boards to be tested are adapted to be replaced, and the applicability of the present application is improved, so that the present application can be applicable to more types of FPC boards to be tested; therefore, the air can be directly inflated into the limiting rod 134 and the limiting air bag 135 through the floating holes 133 which are correspondingly arranged, and additional holes are not needed, so that the processing amount is reduced;
the bottom surface of the limiting groove 131 is a horizontal plane and is subjected to smoothing treatment, so that the device can adapt to a single-sided FPC board to be tested, and the smooth and flat surface without circuit elements is contacted with the smooth surface at the bottom of the limiting groove 131 and is attached to the smooth surface, so that the FPC board to be tested is kept in a stable horizontal state in the detection process.
Example five:
on the basis of the third embodiment, as shown in fig. 7-8 in the drawings of the specification, unlike the fourth embodiment, another solution of the limiting groove 131 is provided for the existing FPC board to be tested having circuit elements on both sides, the bottom of the limiting groove 131 is provided with the test slot 15, the test slot 15 directly leads to the position of the conveyor 12, and the limiting cavities 132 are annular and distributed around the test slot 15;
the side wall of the test slot 15 is provided with a plurality of limiting tubes 151, the limiting tubes 151 are communicated with the limiting cavities 132, different from the above embodiment, the floating holes 133 and the limiting rods 134 in the embodiment are uniformly distributed on the limiting tubes 151, the floating holes 133 are communicated with the limiting cavities 132 through the communicated limiting tubes 151, and the to-be-tested FPC board with circuit elements on both sides is limited and fixed; the limiting pipe 151 serves as a part of the test slot 15, and when the test slot needs to be adsorbed and fixed, the FPC board to be tested can be attached to the limiting pipe 151 under the action of air suction;
a testing opening 121 is formed in the surface of the transmission belt 12 corresponding to the testing slot 15, an installation block 141 is arranged on the side wall of the transmission slot 14, and the end of the installation block 141 extends into the transmission belt 12 and is located below the testing opening 121; an auxiliary testing block 142 is arranged at the end part of the mounting block 141, and an auxiliary probe 143 is arranged on the auxiliary testing block 142; the auxiliary testing block 142 is connected with a second moving component 144 arranged on the end part of the mounting block 141, and the working mechanism of the second moving component 144 is the same as that of the second moving component 23, so that the auxiliary testing block 142 is driven to move upwards, and the auxiliary probe 143 is in contact with a circuit on the bottom surface of the FPC board to be tested and plays a testing role;
further, a limiting frame 145 is arranged on the inner wall of the limiting groove 131 and positioned on the upper side of the limiting pipe 151;
the specific working process is as follows: on the basis of the specific work flow in the third embodiment, in the placing process, the edge part of the FPC board to be tested, on which no circuit element is mounted, is in contact with the upper surface of the limiting frame 145, so that the FPC board to be tested is supported and a certain gap is kept between the FPC board to be tested and the limiting tube 151; in addition, in the embodiment, the gap positions of the paired annular protrusions 137 and the upper surface of the limiting frame 145 are on the same horizontal plane, so that when the inflation equipment inflates the corresponding limiting rod 134 and the limiting air bag 135 through the limiting tube 151, the paired annular protrusions 137 on the expanded limiting air bag 135 enable the corresponding mounting hole position of the FPC board to be tested to be clamped and limited, the mounting hole position and the edge position are on the same horizontal plane, and then the floating hole 133 on the limiting tube 151 still plays a role in air outlet support in the detection process in the embodiment, so that a gap is kept between the whole FPC board to be tested and the limiting tube 151, and the circuit elements on the bottom surface of the FPC board to be tested are prevented from directly contacting with the limiting tube 151 and are prevented from being damaged due to collision and scraping in the transportation and placement processes;
further, in the detection process, when the auxiliary test block 142 moving upward moves to the lower side of the limiting tube 151, the auxiliary probe 143 therein passes through the gap between the limiting tubes 151 and contacts with the point to be detected on the bottom surface of the FPC board to be detected in a floating state, so as to start the detection operation, feed back the data to the display body 31, perform unified evaluation with the detection data on the upper surface of the FPC board to be detected, determine whether the FPC board to be detected is qualified, and output the result; therefore, the detection process can be completed without turning the FPC board to be detected under the condition of ensuring that circuit elements on two sides of the FPC board to be detected are intact, and the detection efficiency is greatly improved.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The FPC micro-resistance test equipment comprises a transmission unit (1), a test unit (2) and a display unit (3), wherein the transmission unit (1) comprises a transmission channel (11), a transmission belt (12) and a transmission block (13), the transmission belt (12) is erected in a U-shaped transmission groove (14) on the transmission channel (11), and the transmission block (13) is installed on the transmission belt (12) and used for transmitting and fixing an FPC board to be tested;
the test unit (2) comprises a test body (21) and a test block (22), wherein the test body (21) is arranged on the conveying channel (11) and is positioned on the upper side of the conveying belt (12); the test block (22) is arranged in the inner cavity of the test machine body (21) and is connected with a first moving assembly (23) on the test machine body (21); the bottom of the test block (22) is provided with a test probe (221), and the test probe (221) is used for outputting test data after contacting with an FPC board to be tested;
the display unit (3) comprises a display body (31), the display body (31) is installed on one side of the test body (21) and is electrically connected with the test body (21), and an interactive interface (311) and an operation button (312) are arranged on the display body (31) and used for adjusting the operation of the test equipment;
the method is characterized in that: a limiting groove (131) is formed in the transmission block (13), and the FPC board is embedded into the limiting groove (131); the bottom of the transmission block (13) is provided with a limiting cavity (132), an inflating device is arranged in the limiting cavity (132), a floating hole (133) is formed in the limiting groove (131), and the floating hole (133) is communicated with the limiting cavity (132);
limiting rod (134) are installed on the upper surface of the bottom of the limiting groove (131), and the limiting rod (134) is embedded into a mounting hole in the FPC board to be tested.
2. The FPC micro-resistance test device according to claim 1, wherein: a limiting air bag (135) is nested and mounted on the outer side of the limiting rod (134), and the diameter of the horizontal section of the limiting air bag (135) is smaller than that of a mounting hole in the FPC board to be tested;
the limiting rod (134) is of a tubular structure and is communicated with the corresponding floating hole (133); air guide holes (136) are uniformly formed in the side wall of the limiting rod (134), and the air guide holes (136) are communicated with the interior of the limiting rod (134).
3. The FPC micro-resistance test device according to claim 2, wherein: the outer side surface of the limit air bag (135) is provided with an annular bulge (137), the outer side surface of the annular bulge (137) is arc-shaped, and the annular bulge is distributed on the limit air bag (135) along the vertical direction.
4. The FPC micro-resistance test device according to claim 3, wherein: the testing device is characterized in that a positioning hole (222) is formed in the part, facing the limiting rod (134), of the testing block (22), a pressure sensor is arranged inside the positioning hole (222), and the positioning hole (222) is matched with the end part of the limiting rod (134) to achieve the testing and positioning effects of the FPC board to be tested.
5. The FPC micro-resistance test device according to claim 4, wherein: the bottom of the limiting rod (134) is embedded into the floating hole (133), the bottom of the limiting rod (134) is detachably connected with the floating hole (133), and the interior of the limiting rod (134) is communicated with the corresponding floating hole (133).
6. The FPC micro-resistance test device according to claim 5, wherein: the part of the outer side of the bottom of the limiting rod (134) which is in contact with the inner wall of the floating hole (133) is made of rubber; the bottom surface of the limiting groove (131) is a horizontal plane and is subjected to smoothing treatment.
7. The FPC micro-resistance test equipment according to claim 5, wherein: the bottom of the limiting groove (131) is provided with a test groove (15), and the limiting cavities (132) are annular and distributed around the test groove (15);
the side wall of the test slot (15) is provided with a plurality of limiting pipes (151), and the limiting pipes (151) are communicated with the limiting cavities (132); the floating holes (133) and the limiting rods (134) are uniformly distributed on the limiting pipe (151);
a testing opening (121) is formed in the surface of the transmission belt (12) corresponding to the testing groove (15), an installation block (141) is arranged on the side wall of the transmission groove (14), and the end part of the installation block (141) extends into the transmission belt (12) and is located below the testing opening (121); an auxiliary testing block (142) is arranged at the end part of the mounting block (141), and an auxiliary probe (143) is arranged on the auxiliary testing block (142); the auxiliary test block (142) is connected with a second moving assembly (144) arranged on the end part of the mounting block (141).
8. The FPC micro-resistance test device according to claim 7, wherein: and a limiting frame (145) is arranged on the inner wall of the limiting groove (131) and positioned on the upper side of the limiting pipe (151).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211563968.6A CN115774130A (en) | 2022-12-07 | 2022-12-07 | FPC hinders test equipment a little |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211563968.6A CN115774130A (en) | 2022-12-07 | 2022-12-07 | FPC hinders test equipment a little |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115774130A true CN115774130A (en) | 2023-03-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211563968.6A Pending CN115774130A (en) | 2022-12-07 | 2022-12-07 | FPC hinders test equipment a little |
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| Country | Link |
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| CN (1) | CN115774130A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117330583A (en) * | 2023-09-28 | 2024-01-02 | 北京微科思创科技有限公司 | Semiconductor illumination detection equipment and system |
-
2022
- 2022-12-07 CN CN202211563968.6A patent/CN115774130A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117330583A (en) * | 2023-09-28 | 2024-01-02 | 北京微科思创科技有限公司 | Semiconductor illumination detection equipment and system |
| CN117330583B (en) * | 2023-09-28 | 2024-03-26 | 北京微科思创科技有限公司 | Semiconductor illumination detection equipment and system |
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