CN215413581U - Electric measurement type line width monitoring device - Google Patents

Abstract

The utility model discloses an electrical measurement type line width monitoring device which comprises a box body and four supporting columns fixedly arranged at the top of a PCB box body, wherein top plates are fixedly arranged at the tops of the four supporting columns, limiting plates are fixedly arranged on two sides of the bottom of each top plate, two guide rail columns are fixedly arranged in each limiting plate, two electric guide rails are movably sleeved on the outer sides of the two guide rail columns, supporting plates are fixedly arranged on the opposite sides of the two electric guide rails, and four electric telescopic columns are fixedly arranged at the bottoms of the supporting plates. Through the microprocessor and the four-wire measuring pin that set up, adopt device or electricity to survey quick-witted automatic test, and do not increase test time, the electricity is surveyed the tool and is increased the four-wire measuring pin, to the line measuring resistance that needs the control, through resistance law R = ρ L/S, calculates the linewidth to reach the purpose of control linewidth, this mode is full-automatic measurationing, can realize 100% test, this scheme is under the prerequisite that does not increase processing procedure and manpower, reaches the purpose of 100% control linewidth.

Description

Electric measurement type line width monitoring device

Technical Field

The utility model belongs to the technical field of PCB production, and particularly relates to an electric measurement type line width monitoring device.

Background

Pcb (printed Circuit board), which is called printed Circuit board in chinese name, also called printed Circuit board, is an important electronic component, is a support for electronic components, is a carrier for electrical connection of electronic components, and is called "printed" Circuit board because it is manufactured by electronic printing.

In the production process of the PCB rigid circuit board, the line width of an internal circuit needs to be measured, the traditional measurement method is measurement by using an electron microscope method, the existing line width measurement method is generally manual measurement by using an electron microscope, the measurement speed is low, only test can be performed by drawing, 100% of test cannot be performed, and improvement needs to be performed in the detection process of the production process of the PCB.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide an electric measurement type line width monitoring device, which solves the problems that the conventional line width measurement mode is usually manual measurement by an electron microscope, the measurement speed is low, only test can be performed by drawing, and 100% of tests cannot be performed.

In order to achieve the purpose, the utility model provides the following technical scheme: an electric measurement type line width monitoring device comprises a box body and a PCB circuit board, wherein four supporting columns are fixedly arranged at the top of the box body, a top plate is fixedly arranged at the tops of four supporting columns, a limiting plate is fixedly arranged at each of two sides of the bottom of the top plate, two guide rail columns are fixedly arranged in the limiting plate, two electric guide rails are movably sleeved at the outer sides of the two guide rail columns, a supporting plate is fixedly arranged at the opposite sides of the two electric guide rails, four electric telescopic columns are fixedly arranged at the bottom of the supporting plate, an operation plate is fixedly arranged at the output ends of the four electric telescopic columns, four suckers are movably arranged at the bottom of the operation plate, the output ends of the four suckers are communicated with connecting pipes, four fixed PINs are arranged at the top of the box body, sleeve plates are movably sleeved at the outer sides of the four fixed PINs, four-line type measuring needles are movably arranged at the top of the box body, four equal movable mounting in top of four-wire formula survey probe has the test PAD, the equal fixed mounting in both sides of box has the curb plate.

Preferably, the bottom of the box body and the bottom of the side plate are both fixedly provided with support legs, and the back face of the box body is movably provided with a heat dissipation fan.

Through adopting above-mentioned technical scheme, the advantage lies in the stabilizer blade and is convenient for the support of device, and the curb plate of both sides will be surveyed simultaneously and part with the PCB circuit board that does not survey, the operation of the operating personnel of being convenient for.

Preferably, two warning lights are movably mounted at the top of the top plate.

By adopting the technical scheme, the method has the advantages that when the NG circuit board is measured, a signal is sent to inform an operator, and the operator can pick out unqualified circuit boards conveniently.

Preferably, the bottom of the PCB circuit board is provided with a line to be measured, the length of the line to be measured is mm, and the PCB circuit board is movably sleeved on the outer side of the fixed PIN.

By adopting the technical scheme, the PCB test device has the advantages that for the convenience of testing, the circuit needing to be tested and needing to be monitored in the PCB is designed on the broken edge COUPON, the length of the circuit is uniformly designed to be 100mm, and the unified standard rapid measurement is convenient.

Preferably, the connecting pipe is movably provided with an electromagnetic valve inside.

By adopting the technical scheme, the automatic control device has the advantages that the electromagnetic valve has the effect that after the connecting pipe is connected with the air compressor, the electromagnetic valve is opened and closed to control the adsorption and the release of the sucker, and the automation efficiency is improved.

Preferably, the back of the box body is movably provided with two data interfaces.

By adopting the technical scheme, the data interface has the advantages that the data interface is convenient for operators to connect the internal device through a computer so as to program and acquire operation information and the like.

Preferably, a storage device is installed inside the box body, a capacitor bank is installed inside the box body, and a microprocessor is installed inside the box body.

Through adopting above-mentioned technical scheme, the advantage is in the measuring information data when the operation is stored to the accumulator, and the operation personnel's of being convenient for transfer, and certain electric power is stored behind the external power adapter is connected to the electric capacity group, for the internal electronic component of box provides certain electric power and supports, prevents to cut off the power supply suddenly, automatic measurement and the controlgear's that microprocessor can be convenient operation to realize automated measurement.

Compared with the prior art, the utility model has the beneficial effects that:

1. through the arranged side plate, the PCB circuit board to be tested is placed on the bearing structure at the top of the side plate on one side during operation, then an operator connects an air compressor externally through a hose and programs a microprocessor, then operation is started, the electric guide rail moves to the top of the side plate on one side along the preset track of the guide rail column to be placed with the circuit board to be tested, then the electric telescopic column stretches and retracts to lower the operation plate and the sucker to be adsorbed at the top of the PCB circuit board to be tested, the electromagnetic valve is opened, air flow forms attraction between the sucker and the circuit board, then the electric telescopic column retracts, the electric guide rail moves the operation plate and the circuit board at the bottom to the upper part of the sleeve plate and the fixed PIN along the guide rail column, the electric telescopic column stretches, the electromagnetic valve is closed, the sucker puts down the PCB circuit board, so that the circuit board to be tested arranged at the bottom of the circuit board is matched with the PAD and the four-wire type measuring needle at the fixed position and the fixed length, the test PAD and the four-wire measuring pin are connected with the microprocessor through the conducting wire to test the resistance value of the line on the COUPON, the microprocessor measures the resistance value in the circuit to be tested according to the preset programming principle of R = rho L/S and combining with the measured resistance value, and brings the fixed numerical value into the formula to further calculate the line width, so that the purpose of automatically detecting the line width is achieved, then the qualified PCB circuit board repeats the moving steps at the sucker, the electric telescopic column and the electric guide rail, the circuit board is moved to the top of the bearing structure of the side plate on the other side, the circuit board is convenient to place and automatically measure, if the unqualified circuit board exists, the microprocessor triggers the warning lamp to prompt an operator to be unqualified, the operator can conveniently reject the circuit board, and the convenience in operation is improved.

2. Through the microprocessor and the four-wire measuring pin that set up, adopt device or electricity to survey quick-witted automatic test, and do not increase test time, the electricity is surveyed the tool and is increased the four-wire measuring pin, to the line measuring resistance that needs the control, through resistance law R = ρ L/S, calculates the linewidth to reach the purpose of control linewidth, this mode is full-automatic measurationing, can realize 100% test, this scheme is under the prerequisite that does not increase processing procedure and manpower, reaches the purpose of 100% control linewidth.

Drawings

FIG. 1 is a front perspective structural view of the present invention;

FIG. 2 is a schematic diagram of a rear perspective structure according to the present invention;

FIG. 3 is a front view of the present invention;

FIG. 4 is a schematic view of the measurement principle of the present invention;

fig. 5 is a schematic view of the internal structure of the case of the present invention.

In the figure: 1. a box body; 2. fixing the PIN; 3. a limiting plate; 4. a guide rail column; 5. a suction cup; 6. an operation plate; 7. a top plate; 8. a pillar; 9. a side plate; 10. a support leg; 11. sheathing; 12. a PCB circuit board; 13. a circuit to be tested; 14. a data interface; 15. an electromagnetic valve; 16. a connecting pipe; 17. a support plate; 18. an electric rail; 19. an electric telescopic column; 20. testing the PAD; 21. a four-wire probe; 22. a microprocessor; 23. a reservoir; 24. and a capacitor bank.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below 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:

referring to fig. 1-5, the present invention provides a technical solution: an electric measurement type line width monitoring device comprises a box body 1 and a PCB 12, wherein four supporting columns 8 are fixedly arranged at the top of the box body 1, a top plate 7 is fixedly arranged at the tops of the four supporting columns 8, limiting plates 3 are fixedly arranged on two sides of the bottom of the top plate 7, two guide rail columns 4 are fixedly arranged in the limiting plates 3, two electric guide rails 18 are movably sleeved on the outer sides of the two guide rail columns 4, a supporting plate 17 is fixedly arranged on the opposite side of the two electric guide rails 18, four electric telescopic columns 19 are fixedly arranged at the bottom of the supporting plate 17, an operation plate 6 is fixedly arranged at the output ends of the four electric telescopic columns 19, four suckers 5 are movably arranged at the bottom of the operation plate 6, connecting pipes 16 are communicated with the output ends of the four suckers 5, four fixed PIN2 are arranged at the top of the box body 1, sleeve plates 11 are movably sleeved on the outer sides of the four fixed PIN2, four line type measuring PINs 21 are movably arranged at the top of the box body 1, the top of the four-wire measuring pins 21 is movably provided with a test PAD20, and two sides of the box body 1 are fixedly provided with side plates 9.

In the embodiment, through the arranged side plate 9, the PCB 12 to be tested is placed on the bearing structure at the top of the side plate 9 on one side during operation, then an operator connects the connecting pipe 16 with an external air compressor through a hose and programs the microprocessor 22, then the operation is started, the electric guide rail 18 moves to one side along the preset track of the guide rail column 4 to place the top of the PCB 9 to be tested, then the electric telescopic column 19 stretches and retracts to lower the operation plate 6 and the suction cup 5 to be adsorbed at the top of the PCB 12 to be tested, the electromagnetic valve 15 is opened, air flow forms attraction between the suction cup 5 and the circuit board, then the electric telescopic column 19 retracts, the electric guide rail 18 moves the operation plate 6 and the circuit board at the bottom along the guide rail column 4 to the upper parts of the sleeve plate 11 and the fixed PIN2, the electric telescopic column 19 stretches, the electromagnetic valve 15 is closed, the suction cup 5 puts down the PCB 12, the circuit 13 to be tested arranged at the bottom of the circuit board is matched with the test PAD20 and the four-wire probe 21 at fixed positions and fixed lengths, the test PAD20 and the four-wire probe 21 are connected with the microprocessor 22 through conducting wires to test the resistance value of the circuit on COUPON, the microprocessor 22 substitutes a fixed numerical value into a formula according to a preset programming according to a resistance law R = rho L/S and in combination with the measured resistance value in the circuit to be tested to further calculate the line width, thereby achieving the purpose of automatically detecting the line width, then the qualified PCB 12 moves to the top of the bearing structure of the side plate 9 at the other side on the sucker 5, the electric telescopic column 19 and the electric guide rail 18 by repeating the moving steps, the circuit board is convenient to place and automatically measure, if the unqualified circuit board exists, the microprocessor 22 triggers the warning light to indicate that the operator is unqualified, so that the operator can reject the unqualified product, and the convenience of operation is improved.

Example two:

as shown in fig. 1 to 5, on the basis of the first embodiment, the present invention provides a technical solution: the back movable mounting of box 1 has two data interface 14, and the inside movable mounting of connecting pipe 16 has solenoid valve 15, and the top movable mounting of roof 7 has two warning lights, and the equal fixed mounting in bottom of box 1 and curb plate 9 has stabilizer blade 10, and the back movable mounting of box 1 has the heat dissipation fan.

In this embodiment, data interface 14 is convenient for the operating personnel to pass through the computer and connects interior device, so that it programs and acquires operation information etc, solenoid valve 15's effect is behind connecting pipe 16 connection aerostatic press, solenoid valve 15 open with close can control the absorption and the putting down of sucking disc 5, increase automation efficiency, the warning light effect is when measuring the circuit board of NG, the signaling informs the operating personnel, it picks out unqualified circuit board to be convenient for it, stabilizer blade 10 is convenient for the support of device, simultaneously curb plate 9 of both sides will record and part with unmeasured PCB circuit board 12, the operating personnel operation of being convenient for, the inside heat dissipation of box 1 of heat dissipation fan is convenient for, improve inside electronic component's life, prevent the loss that overheated appearance.

Example three:

as shown in fig. 1 to 5, on the basis of the first embodiment and the second embodiment, the present invention provides a technical solution: the bottom of PCB circuit board 12 is provided with needs survey circuit 13, and the length that needs survey circuit 13 is 100mm, and PCB circuit board 12 activity cup joints in the outside of fixed PIN 2.

In this embodiment, for convenient test, on designing the circuit 13 that needs to be surveyed that needs to monitor in PCB circuit board 12 to broken edge COUPON, the unified design of line length is 100mm, the unified standard rapid survey of being convenient for, resistance law R = ρ L/S, R: resistance, ρ: copper resistivity, L: line length, S: the cross-sectional area of the line ((upper line width + lower line width) × copper thickness/2) is based on the in-plant process capability, the upper line width = lower line width-0.0127 mm, and the above is substituted into the formula: the lower line width = ρ × line length/resistance +0.00635mm, the microprocessor 22 or the electrical measuring machine and the connection host computer convert the measured resistance value into a lower line width value, and perform management and control according to the work order specification.

Example four:

as shown in fig. 1 to 5, on the basis of the first embodiment, the second embodiment and the third embodiment, the present invention provides a technical solution: the storage 23 is installed in the box 1, the capacitor bank 24 is installed in the box 1, and the microprocessor 22 is installed in the box 1.

In this embodiment, the storage 23 stores the measurement information data during operation, so as to facilitate the retrieval of the operator, the capacitor bank 24 stores a certain amount of power after being connected to the external power adapter, so as to provide a certain amount of power support for the electronic components in the box 1, thereby preventing sudden power failure, the microprocessor 22 can conveniently and automatically measure and control the operation of the equipment, in order to realize automatic measurement, the output end of the microprocessor 22 passes through the wire and data interface 14, the electromagnetic valve 15, the electric guide rail 18, the electric telescopic column 19, the test PAD20, the four-wire probe 21, the storage 23 and the capacitor bank 24, the input end of the microprocessor 22 passes through the wire and data interface 14, the test PAD20, the four-wire probe 21, the storage 23 and the capacitor bank 24, thereby facilitating the circuit current trend during measurement, the microprocessor 22 is programmable Xilinx Sairish XC7Z020-2CLG400I, and is programmed by one skilled in the art for use.

The working principle and the using process of the utility model are as follows: during operation, a PCB 12 to be tested is placed on a bearing structure at the top of a side plate 9 on one side, then an operator connects an air compressor externally through a hose and programs a microprocessor 22, then operation is started, an electric guide rail 18 moves to one side along a preset track of a guide rail column 4 to place the top of the PCB 9 to be tested, an electric telescopic column 19 is telescopic to lower an operation plate 6 and a suction cup 5 to be adsorbed at the top of the PCB 12 to be tested, an electromagnetic valve 15 is opened, air flow forms attraction between the suction cup 5 and the circuit board, then the electric telescopic column 19 retracts, the electric guide rail 18 moves the operation plate 6 and the circuit board at the bottom to the positions above a sleeve plate 11 and a fixed PIN2 along the guide rail column 4, the electric telescopic column 19 extends, the electromagnetic valve 15 is closed, the suction cup 5 puts down the PCB 12 to enable a circuit 13 to be tested arranged at the bottom of the circuit board to be tested to be in a fixed position and a fixed length to be matched with a PAD20 and a four-wire type measuring needle 21, the PAD20 and the four-wire probe 21 are connected with the microprocessor 22 through leads to test the resistance value of the circuit on COUPON, the microprocessor 22 brings a fixed numerical value into a formula according to a preset programming according to the resistance law R = rho L/S and combines with the measured resistance value in the circuit to be tested so as to further calculate the line width, thereby achieving the purpose of automatically detecting the line width, then the qualified PCB 12 moves to the top of the bearing structure of the side plate 9 on the other side on the sucker 5, the electric telescopic column 19 and the electric guide rail 18 to repeat the moving steps, the circuit board is moved to the top of the bearing structure of the side plate 9 on the other side, the circuit board is convenient to place and automatically measure, if the circuit board is unqualified, the microprocessor 22 triggers a warning light to prompt an operator to be unqualified, the operator can conveniently remove the circuit board, and the convenience of operation is increased.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides an electricity measurement formula line width monitoring device, includes box (1) and PCB circuit board (12), its characterized in that: the top of the box body (1) is fixedly provided with four pillars (8), the top of the four pillars (8) is fixedly provided with a top plate (7), two sides of the bottom of the top plate (7) are fixedly provided with a limiting plate (3), the inside of the limiting plate (3) is fixedly provided with two guide rail columns (4), the outer sides of the two guide rail columns (4) are movably sleeved with two electric guide rails (18), two opposite sides of the electric guide rails (18) are fixedly provided with a supporting plate (17), the bottom of the supporting plate (17) is fixedly provided with four electric telescopic columns (19), the output ends of the four electric telescopic columns (19) are fixedly provided with an operation plate (6), the bottom of the operation plate (6) is movably provided with four suckers (5), the output ends of the four suckers (5) are communicated with a connecting pipe (16), the top of the box body (1) is provided with four fixed PINs (2), four lagging (11) have been cup jointed in the outside activity of fixed PIN (2), the top movable mounting of box (1) has four-wire type survey needles (21), four the equal movable mounting in top of four-wire type survey needle (21) has test PAD (20), the equal fixed mounting in both sides of box (1) has curb plate (9).

2. An electrical measurement linewidth monitoring apparatus as claimed in claim 1 wherein: the bottom of box (1) and curb plate (9) all fixed mounting have stabilizer blade (10), the back movable mounting of box (1) has the heat dissipation fan.

3. An electrical measurement linewidth monitoring apparatus as claimed in claim 1 wherein: two warning lamps are movably mounted at the top of the top plate (7).

4. An electrical measurement linewidth monitoring apparatus as claimed in claim 1 wherein: the bottom of PCB circuit board (12) is provided with needs survey circuit (13), the length that needs survey circuit (13) is 100mm, PCB circuit board (12) activity cup joints in the outside of fixed PIN (2).

5. An electrical measurement linewidth monitoring apparatus as claimed in claim 1 wherein: an electromagnetic valve (15) is movably arranged in the connecting pipe (16).

6. An electrical measurement linewidth monitoring apparatus as claimed in claim 1 wherein: two data interfaces (14) are movably mounted on the back of the box body (1).

7. An electrical measurement linewidth monitoring apparatus as claimed in claim 1 wherein: the internal mounting of box (1) has accumulator (23), the internal mounting of box (1) has electric capacity group (24), the internal mounting of box (1) has microprocessor (22).

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