CN211205123U - PCB thickness measurement device - Google Patents

Abstract

The utility model discloses a thick measuring device of PCB board, operation platform including the level setting, the perpendicular erection measurement support frame of operation platform side, measure a side-mounting that the support frame is close to operation platform and be used for measuring the percentage table of the plate thickness that awaits measuring, operation platform sets up cylinder support frame at the top, and the installation cylinder on the cylinder support frame, the spacing subassembly of piston rod bottom installation of cylinder, the measuring hole that the measuring stick that is suitable for the percentage table passed is seted up to the one end that spacing subassembly is close to the percentage table. Through setting up the thickness that the percentage table measured the plate optional position that awaits measuring, set up spacing subassembly and avoid measuring error too big for solve among the prior art PCB thick measuring device cost higher, the structure is complicated, the inconvenient problem of operation.

Description

PCB thickness measurement device

technical field

The utility model relates to the technical field of printed circuit boards, in particular to a PCB board thickness measuring device using a dial indicator.

Background technique

Most of the existing PCB thickness measurement devices use a micrometer for measurement. When the volume of the board to be tested is small, the operator can directly measure the thickness of the board to be tested through the micrometer. When the size of the plate 600 to be measured is relatively large, due to the design of the micrometer 500 itself and the micrometer screw, it can only measure the plate thickness of the area within 25mm of the edge of the plate to be measured, resulting in an area greater than 25mm from the edge of the plate. Become a test blind spot. Moreover, since the PCB board may not be in a completely flat state due to errors in the production process after molding, directly placing the PCB board on the measuring platform or directly holding it by hand for thickness measurement, it is easy for the PCB board to be A large measurement error occurs due to tilting. However, it is expensive to purchase a special instrument to measure the PCB board, and the structure is complicated and the operation is inconvenient.

Utility model content

The purpose of the utility model is to provide a PCB board thickness measuring device, which can measure the thickness of any position of the board to be measured by setting a dial indicator, with simple structure and convenient operation; setting a limit component to avoid excessive measurement error, which is used to solve the problem of existing In the technology, the PCB thickness measurement device has the problems of high cost, complex structure and inconvenient operation.

To achieve the above object, the present invention adopts the following technical means to implement:

The PCB thickness measurement device includes a horizontally arranged operation platform, a measurement support frame is installed vertically on the side of the operation platform, and a dial indicator for measuring the thickness of the board to be measured is installed on the side of the measurement support frame close to the operation platform. A cylinder support frame is erected on the top of the operating platform, a cylinder is installed on the cylinder support frame, a limit assembly is installed at the bottom of the piston rod of the cylinder, and one end of the limit assembly close to the dial indicator is provided with a measuring hole suitable for the measuring rod of the dial indicator to pass through. .

In the above technical solution, a push assembly suitable for the measuring hole is installed on the side of the measuring rod of the dial indicator.

Further, a guide rod is installed on the side of the cylinder, the guide rod is installed on the cylinder support frame and is perpendicular to the operation platform, and a guide limit hole suitable for the guide rod is defined on the limit component.

Still further, a soft buffer component is installed at the bottom of the limiting component.

As an effective arrangement solution, the air cylinder is connected with the air source processing assembly via a foot switch.

Further, the air source processing assembly includes a first filter assembly, an air pressure adjustment assembly, and a second filter assembly, the air inlet of the first filter assembly is connected to an external source, and the air outlet of the first filter assembly is connected to the air pressure. The air inlet of the adjustment assembly is connected, the air outlet of the air pressure adjustment assembly is connected to the air inlet of the second filter assembly, the air outlet of the second filter assembly is connected to the air inlet of the foot switch, and the foot switch The air outlet is connected to the air inlet of the cylinder.

Still further, it also includes an installation bracket, the operation platform is horizontally installed on the top of the installation bracket, the measurement support bracket is installed on the side of the installation bracket, and the air source processing assembly and the foot switch are installed on the installation bracket. bottom.

The utility model at least has the following benefits:

The operation platform is set horizontally, and the measuring support frame is installed vertically on the side. The dial indicator is fixedly connected to the measurement support frame, and the measuring rod of the dial indicator is perpendicular to the operation platform. The plate to be tested is placed horizontally on the operation platform. In the process of thickening, by adjusting the contact position of the plate to be tested and the dial indicator, the thickness of the plate to be measured can be measured at any position, and the thickness of the plate to be measured can be directly obtained according to the reading of the dial indicator. The structure is simple and effective. save costs;

The cylinder support frame for installing the cylinder is erected on the operation platform, and the limit component is fixedly connected to the piston rod of the cylinder. A measuring hole is opened at one end of the limit component close to the dial indicator, and the measuring rod of the dial indicator vertically passes through the measuring hole to measure the thickness of the plate to be measured, so as to prevent the plate to be measured that cannot be in a straight state from warping during the measurement process It can improve the measurement accuracy, and the operation is convenient, which can effectively improve the measurement efficiency.

Description of drawings

Figure 1 is a PCB thickness measurement device using a micrometer;

Fig. 2 is the structural representation of the preferred embodiment of the present utility model;

Fig. 3 is the structural schematic diagram of the push assembly when the preferred embodiment of the present invention is not measured;

4 is a schematic structural diagram of a push assembly during measurement according to a preferred embodiment of the present invention;

In the figure: 100, operating platform; 201, measuring support frame; 202, dial indicator; 2021, measuring rod; 2022, push assembly; 301, cylinder support frame; 302, cylinder; 3021, piston rod; 303, limit assembly 3031, measuring hole; 3032, buffer assembly; 304, air source processing assembly; 305, foot switch; 400, mounting bracket; 500, micrometer; 600, plate to be tested.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present utility model easier to understand, the present utility model will be further described in detail below with reference to the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

Example

As shown in Figure 2-4, the PCB thickness measurement device includes a horizontally arranged operation platform 100, a measurement support frame 201 is set on the side of the operation platform 100, the measurement support frame 201 is vertically installed on the side of the operation platform 100, and the measurement support frame 201 is close to the operation platform 100 A dial indicator 202 for measuring the thickness of the plate to be measured is fixedly installed on one side of the platform 100. It should be noted that, according to the actual use environment, a support arm can be set on the side of the measurement support frame 201. The dial indicator 202 and the The support arm is fixedly connected, and is fixedly installed on the measurement support frame through the support arm. Of course, there are fixing parts installed between the support arm and the measurement support frame, the dial indicator and the support arm, and the fixing parts can be fixed parts such as screws. A cylinder support frame 301 is provided on the top of the operation platform 100 , the cylinder support frame 301 is erected on the top of the operation platform 100 in a “U” shape, and the top of the cylinder support frame 301 is parallel to the operation platform 100 . Specifically, the support feet on both sides of the cylinder support frame 301 can be set in a "T" shape, the sides of the flanges of the T-shaped support feet can be aligned with the sides of the operating platform 100, and the flanges of the T-shaped support feet are provided with In the connection position, the T-shaped support feet are fixedly connected to the operation platform 100 through screws suitable for the connection position. As another embodiment of the present invention, the cylinder support frame can be directly welded on the operation platform. The air cylinder 302 is connected to the air source processing assembly 304 via the foot switch 305, the foot switch 305 is connected to the external air source through the air source processing assembly 304, and the air cylinder is supplied with air through the foot switch to control the movement of the piston rod of the air cylinder. Specifically, the air source processing assembly includes a first filter assembly, an air pressure adjustment assembly, and a second filter assembly. The air inlet of the first filter assembly is connected to an external source, the air outlet of the first filter assembly is connected to the air inlet of the air pressure adjustment assembly, and the air pressure The air outlet of the adjustment assembly is connected to the air inlet of the second filter assembly, the air outlet of the second filter assembly is connected to the air inlet of the foot switch, and the air outlet of the foot switch is connected to the air inlet of the cylinder, wherein the external source provides compressed air, and the first A filter assembly is used to filter impurities in the compressed air, an air pressure adjustment assembly is used to depressurize the compressed air, and the second filter assembly is used to remove moisture in the compressed air. Of course, the cylinder 302 can be installed in the middle of the cylinder support frame 301 , and the measurement support frame 201 can be installed in the middle of the side of the operation platform 100 corresponding to the cylinder 302 . The limit component 303 is installed at the bottom of the cylinder piston rod 3021. Specifically, a hole suitable for the piston rod 3021 can be dug in the limit component 303, and the limit component 303 is fixedly installed on the bottom of the cylinder piston rod 3021 through the hole. . Wherein, one end of the limiting component 303 close to the dial indicator 202 is provided with a measuring hole 3031 suitable for the measuring rod 2021 of the dial indicator to pass through. For the outer diameter, the measuring hole 3031 can be set in any shape suitable for the passing of the measuring rod 2021, such as a circle. During the measurement process, the limit assembly 303 is controlled to press down by controlling the cylinder piston rod 3021, and after the limit assembly 303 presses the plate to be measured, the measuring rod 2021 of the dial indicator 202 measures the plate to be measured through the measuring hole 3031 Part thickness to reduce measurement error.

In the preferred embodiment of the present invention, a push assembly 2022 suitable for the measurement hole 3031 can be installed on the side of the measuring rod 2021 of the dial indicator 202. The connecting position of the rod 2021, through which the measuring rod 2021 is fixedly connected to the push assembly 2022. The other end of the push assembly 2022 is in contact with the top of the outer edge of the measurement hole 3031. It should be noted that the height difference between the end of the push assembly away from the measurement rod and the measurement head of the measurement rod is not less than the thickness of the limit assembly (that is, in the In the non-measurement state, the push component is in contact with the top of the outer edge of the measuring hole, and the measuring head of the measuring rod is lower than the bottom surface of the limit component). According to different requirements of the actual use environment, the pushing component 2022 can be set in any shape. During use, under the action of the cylinder piston rod 3021, the limit assembly 303 is pressed down to the plate to be measured 600 placed horizontally on the operation platform, pushing the constraints of the infinite assembly of the assembly, and the measuring rod of the dial indicator automatically moves downwards Stop when the plate to be tested is reached, at this time the dial indicator 202 reads the thickness of the plate to be tested. After the counting is completed, the piston rod drives the push assembly to move up, so as to drive the measuring rod of the dial indicator to leave the operation platform 100 .

In order to realize that the limit component 303 can move along the direction perpendicular to the operation platform 100, a guide rod perpendicular to the operation platform 100 can be installed on the side of the cylinder 302, and the top of the guide rod is fixedly connected with the cylinder support frame 301. In a preferred embodiment, a guide rod is preferably installed on the side of the cylinder 302 away from the dial indicator 202, and a guide limit hole suitable for the guide rod is opened on the limit assembly 303, so that the limit assembly 303 acts on the guide rod. The bottom always moves in the direction perpendicular to the operation platform 100 .

In order to prevent the limit component 303 from being damaged during the operation of the board to be tested, a soft buffer component 3032 such as a rubber ring can be installed at the bottom of the limit component 303 .

In the preferred embodiment of the present invention, it also includes an installation bracket 400, an installation base is arranged at the bottom of the operation platform 100, the operation platform 100 is horizontally installed on the top of the installation bracket 400 through the installation base, and a fixed connection position is set on the side of the operation platform 100. , which is fixedly connected to the mounting bracket 400 through fixing parts such as screws. A cylinder support frame 301 is installed on the top of the operation platform 100 , a measurement support frame 201 is installed on the side, and the side of the measurement support frame 201 close to the operation platform 100 is fixedly connected to the dial indicator 202 . The air source processing assembly 304 and the foot switch 305 are installed on the bottom of the mounting bracket 400 . For the convenience of the operator, the foot switch 305 is installed on the side away from the measurement support frame 201 .

The specific working principle of the utility model is as follows:

1. Place the plate to be tested 600 on the operating platform 100 horizontally, mark the position where the thickness of the plate to be measured needs to be measured as the test point, move the measurement point to the measuring rod 2021 of the dial indicator 202, and step on the pedal The switch 305 moves the piston rod 3021 of the air cylinder 302 downward, and drives the limiting assembly 303 at the bottom of the piston rod 3021 to move vertically downward along the guide rod to press the plate to be tested. The measuring rod 2021 stops automatically when it moves down to the plate to be measured, and the dial indicator 202 reads the thickness of the plate to be measured at this time.

2. After the counting is completed, release the foot switch 305 to make the cylinder piston rod 3021 move upward, and drive the limit assembly 303 at the bottom of the piston rod 3021 to move upward, and the limit assembly 303 drives the measurement through the push assembly 2022 on the side of the measuring rod 2021. The rod moves upwards to lift the measuring rod 2021 of the dial indicator away from the plate to be measured, and the measurement ends.

Repeat the above 1-2 points to measure the thickness of any position on the plate to be tested.

The calibration method of the PCB thickness measuring device shown in the utility model is as follows:

According to the above operation steps, on the premise of not placing the plate to be measured, step on the foot switch 305, so that the piston rod 3021 of the air cylinder 302 drives the limit assembly 303 to move down along the guide rod, and the measuring rod 2021 moves down until the operation When the platform stops moving, turn the dial of the dial indicator 202 to make the pointer coincide with the zero mark on the dial. Then use any PCB standard thickness plate, measure according to the above-mentioned steps, make the measurement result of the PCB plate thickness measuring device shown in the present utility model consistent with the standard plate thickness value, when the two values deviate from each other, by adjusting the indicator of the dial indicator 202. dial, so that the reading of the dial indicator 202 is the same as the thickness value of the PCB standard thickness plate. Repeat the measurement of the thickness of the PCB standard thickness plate and any position of the PCB standard thickness plate until the reading of the dial indicator 202 is consistent with the value of the standard plate, and the calibration is completed.

The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. The changes or replacements should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (7)

1. PCB board thickness measuring device, it is characterized in that, comprise the operation platform that is arranged horizontally, and the side of described operation platform is installed vertically to measure the support frame, and the side of described measurement support frame that is close to the operation platform is installed for measuring the board to be measured A dial indicator for thickness, a cylinder support frame is erected on the top of the operating platform, a cylinder is installed on the cylinder support frame, a limit assembly is installed at the bottom of the piston rod of the cylinder, and the end of the limit assembly close to the dial indicator is provided for the measurement of the dial indicator The measuring hole through which the rod passes. 2 . The PCB thickness measuring device according to claim 1 , wherein a push assembly suitable for the measuring hole is installed on the side of the measuring rod of the dial indicator. 3 . 3 . The PCB thickness measurement device according to claim 2 , wherein a guide rod is installed on the side of the cylinder, the guide rod is installed on the cylinder support frame and is perpendicular to the operation platform, and the limit assembly is provided with a guide rod. 4 . It is suitable for the guide limit hole of the guide rod. 4 . The PCB thickness measurement device according to claim 1 , wherein a soft buffer component is installed at the bottom of the limiting component. 5 . 5 . The PCB thickness measurement device according to claim 1 , wherein the air cylinder is connected to the air source processing assembly via a foot switch. 6 . 6 . The PCB thickness measurement device according to claim 5 , wherein the air source processing assembly comprises a first filter assembly, an air pressure adjustment assembly, and a second filter assembly, and the air inlet of the first filter assembly is connected to the air inlet of the first filter assembly. 7 . External origin connection, the air outlet of the first filter assembly is connected to the air inlet of the air pressure adjustment assembly, the air outlet of the air pressure adjustment assembly is connected to the air inlet of the second filter assembly, and the air outlet of the second filter assembly It is connected with the air inlet of the foot switch, and the air outlet of the foot switch is connected with the air inlet of the cylinder. 7 . The PCB thickness measurement device according to claim 5 , further comprising an installation bracket, the operation platform is horizontally installed on the top of the installation bracket, and the measurement support bracket is installed on the side of the installation bracket. 8 . , the air source processing assembly and the foot switch are installed at the bottom of the mounting bracket.

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