CN215177561U

CN215177561U - Device for measuring thickness of PCB

Info

Publication number: CN215177561U
Application number: CN202120980444.1U
Authority: CN
Inventors: 赖福明
Original assignee: Enter Automatic Machinery Shenzhen Co ltd
Current assignee: Enter Automatic Machinery Shenzhen Co ltd
Priority date: 2021-05-10
Filing date: 2021-05-10
Publication date: 2021-12-14
Anticipated expiration: 2031-05-10

Abstract

The utility model discloses a device for measuring PCB plate thickness, the power distribution box comprises a box body, the bottom half is fixed with first servo motor, and first servo motor's output shaft is fixed with the transmission shaft through the shaft coupling, the transmission shaft top is fixed with the backup pad, box top inner wall is located the backup pad upside and rotates through the bearing and be connected with the telescopic link, and the bottom mounting of telescopic link has the limiting plate. The utility model discloses a place the PCB board at the backup pad top to utilize the telescopic link to transfer the limiting plate and carry out the centre gripping in PCB board top, usable first laser displacement sensor perception PCB board thickness can enough place the PCB board of different sizes, can measure PCB board thickness fast simultaneously, improve the practicality of device; the threaded rod is driven to rotate through the second servo motor, the telescopic plate is moved downwards to the top of the PCB, the thickness of the edge of the PCB is determined by the second laser displacement sensor, and the first servo motor rotates to obtain multiple groups of data and improve the measurement precision.

Description

Device for measuring thickness of PCB

Technical Field

The utility model relates to a PCB board field especially relates to a device for measuring PCB board thickness.

Background

The PCB, which is called a printed circuit board in chinese, is an important electronic component, a support for electronic components, and a carrier for electrical connection of electronic components. It is called a "printed" circuit board because it is made using electronic printing.

The current many workers who are used for measuring the PCB board utilize slide caliper rule to measure, and its measurement of efficiency reduces, and easily bumps the PCB board, leads to the damage to appear in the PCB board, and the thickness that can only measure the border position more when measuring, leads to data accurate inadequately.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art, and providing a device for measuring the thickness of a PCB.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a device for measuring the thickness of a PCB (printed circuit board), which comprises a box body, wherein a first servo motor is fixed at the bottom of the box body, a transmission shaft is fixed on an output shaft of the first servo motor through a coupler, a supporting plate is fixed at the top end of the transmission shaft, the inner wall of the top of the box body is positioned on the upper side of the supporting plate and is rotatably connected with a telescopic rod through a bearing, a limiting plate is fixed at the bottom end of the telescopic rod, a mounting groove is formed in the central position of the bottom of the limiting plate, a first laser displacement sensor is fixed on the inner wall of the mounting groove, the first laser displacement sensor is connected with a controller through a lead, the controller is connected with a display through a mounting line, a sliding groove is formed in the inner wall of one side of the box body, a telescopic plate is slidably connected with the inner wall of the sliding groove, a second servo motor is fixed on one side of the top of the box body, a threaded rod is fixed on the output shaft of the second servo motor through a coupler, and a threaded hole is formed in one side of the telescopic plate, and threaded hole inner wall and threaded rod form the spiro union cooperation, box one side inner wall is located the expansion plate downside and is fixed with the fixed plate, and opens on one side of expansion plate bottom has the fixed slot, the fixed slot inner wall is fixed with second laser displacement sensor, and second laser displacement sensor is connected through the fixed line with the controller.

Preferably, the expansion plate includes fixed frame, connecting plate, rotating gear and bar tooth, and the connecting plate forms sliding fit with the inner wall of fixed frame, and open at the connecting plate top has the installation notch, and the bar tooth is fixed at installation notch inner wall, bar tooth and rotating gear meshing, and the fixed crank of rotating gear inner wall.

Preferably, the top of the fixing plate and the top of the supporting plate are located on the same horizontal plane, and the top of the supporting plate is provided with a plurality of fixing notches.

Preferably, the inner wall of the fixed notch is connected with a rubber block in a sliding mode, a spring is fixed to the bottom of the rubber block, and the bottom end of the spring is fixed to the inner wall of the fixed notch.

Preferably, the telescopic link includes tubular metal resonator and connecting rod, and the connecting rod forms sliding fit with the tubular metal resonator inner wall, and the tubular metal resonator bottom outer wall rotates and is connected with the nut, and the nut forms the spiro union cooperation with the connecting rod outer wall.

Preferably, the controller and the display are fixed on the outer wall of the other side of the box body, and the two ends of the threaded rod are rotatably connected to the inner wall of the sliding groove through bearings.

The utility model has the advantages that:

1. the PCB is placed at the top of the supporting plate, the limiting plate is placed at the top of the PCB by the telescopic rod to be clamped, the thickness of the PCB can be sensed by the first laser displacement sensor and is displayed by the controller and the display, the PCB with different sizes can be placed, the thickness of the PCB can be rapidly measured, and the practicability of the device is improved;

2. the second servo motor drives the threaded rod to rotate, the telescopic plate is moved downwards to the top of the PCB, the thickness of the edge of the PCB is determined by the second laser displacement sensor, the first servo motor rotates, the thickness of the PCB can be determined more accurately, and the measurement precision is improved.

Drawings

Fig. 1 is a schematic cross-sectional structure diagram of a device for measuring the thickness of a PCB board provided by the present invention.

Fig. 2 is a schematic view of a cross-sectional structure of a retractable plate of the device for measuring the thickness of a PCB.

Fig. 3 is a schematic view of a cross-sectional structure of a supporting plate of the device for measuring the thickness of a PCB board of the present invention.

In the figure: the automatic laser displacement sensor comprises a box body 1, a first servo motor 2, a transmission shaft 3, a supporting plate 4, a telescopic rod 5, a limiting plate 6, a first laser displacement sensor 7, a controller 8, a display 9, a second servo motor 10, a threaded rod 11, a telescopic plate 12, a second laser displacement sensor 13, a fixing plate 14, a strip-shaped tooth 15, a rotating gear 16, a fixing frame 17, a connecting plate 18 and a rubber block 19.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a device for measuring the thickness of a PCB comprises a box body 1, a first servo motor 2 is fixed at the bottom of the box body 1, a transmission shaft 3 is fixed at the output shaft of the first servo motor 2 through a coupler, a support plate 4 is fixed at the top end of the transmission shaft 3, a telescopic rod 5 is rotatably connected to the upper side of the support plate 4 through a bearing at the inner wall of the top of the box body 1, a limiting plate 6 is fixed at the bottom end of the telescopic rod 5, a mounting groove is opened at the central position of the bottom of the limiting plate 6, a first laser displacement sensor 7 is fixed at the inner wall of the mounting groove, the first laser displacement sensor 7 is connected with a controller 8 through a lead, the controller 8 is connected with a display 9 through a mounting line, the PCB is clamped by placing the PCB at the top of the support plate 4 and lowering the limiting plate 6 at the top of the PCB through the telescopic rod 5, the thickness of the PCB can be sensed by the first laser displacement sensor 7 of LRTB2000 type, the controller 8 with the model number of S7-300 is used for controlling the display 9 to display, so that PCBs with different sizes can be placed, the thickness of the PCB can be rapidly measured, and the practicability of the device is improved;

the inner wall of one side of the box body 1 is provided with a sliding groove, the inner wall of the sliding groove is connected with an expansion plate 12 in a sliding mode, one side of the top of the box body 1 is fixedly provided with a second servo motor 10, an output shaft of the second servo motor 10 is fixedly provided with a threaded rod 11 through a coupler, one side of the expansion plate 12 is provided with a threaded hole, the inner wall of the threaded hole is in threaded fit with the threaded rod 11, the inner wall of one side of the box body 1 is positioned at the lower side of the expansion plate 12 and is fixedly provided with a fixed groove, one side of the bottom of the expansion plate 12 is provided with a second laser displacement sensor 13, the second laser displacement sensor 13 is connected with the controller 8 through a fixed line, the threaded rod 11 is driven to rotate through the second servo motor 10, the expansion plate 12 is moved downwards to the top of the PCB, the thickness of the edge of the PCB is determined through the second laser displacement sensor 13, the thickness of the PCB can be determined more accurately when the first servo motor 2 rotates, the measurement precision is improved;

the expansion plate 12 comprises a fixed frame 17, a connecting plate 18, a rotating gear 16 and a strip-shaped tooth 15, the connecting plate 18 is in sliding fit with the inner wall of the fixed frame 17, the top of the connecting plate 18 is provided with an installation notch, the strip-shaped tooth 15 is fixed on the inner wall of the installation notch, the strip-shaped tooth 15 is meshed with the rotating gear 16, a crank is fixed on the inner wall of the rotating gear 16, the top of the fixed plate 14 and the top of the support plate 4 are positioned on the same horizontal plane, the top of the support plate 4 is provided with a plurality of fixed notches, the inner wall of each fixed notch is connected with a rubber block 19 in a sliding manner, the bottom of each rubber block 19 is fixed with a spring, the bottom end of each spring is fixed on the inner wall of each fixed notch, the expansion link 5 comprises a metal tube and a connecting rod, the connecting rod and the inner wall of the metal tube form sliding fit, the outer wall of the bottom end of the metal tube is connected with a nut in a rotating manner, the nut and the outer wall of the connecting rod form threaded fit, the controller 8 and the display 9 are both fixed on the outer wall of the other side of the box 1, both ends of the threaded rod are rotatably connected to the inner wall of the sliding groove through bearings.

The working principle is as follows: by placing the PCB on the top of the supporting plate 4 and lowering the limiting plate 6 on the top of the PCB for clamping by using the telescopic rod 5, the thickness of the PCB can be sensed by using the first laser displacement sensor 7 and displayed by using the controller 8 and the display 9, so that PCBs with different sizes can be placed, meanwhile, the thickness of the PCB can be rapidly measured, and the practicability of the device is improved; through the rotation of second servo motor 10 drive threaded rod 11, move down expansion plate 12 to PCB board top, utilize second laser displacement sensor 13 to confirm the thickness at PCB board edge, rotating through first servo motor 2, the thickness of the definite PCB board that can be more accurate improves measurement accuracy.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a device for measuring PCB plate thickness, includes box (1), its characterized in that, box (1) bottom is fixed with first servo motor (2), and the output shaft of first servo motor (2) is fixed with transmission shaft (3) through the shaft coupling, transmission shaft (3) top is fixed with backup pad (4), box (1) top inner wall is located backup pad (4) upside and is connected with telescopic link (5) through the bearing rotation, and the bottom mounting of telescopic link (5) has spacing board (6), spacing board (6) bottom central point puts and opens there is the mounting groove, and the mounting groove inner wall is fixed with first laser displacement sensor (7), first laser displacement sensor (7) are connected with controller (8) through the wire, and controller (8) are connected with display (9) through the mounting wire, box (1) one side inner wall is opened there is the spout, and spout inner wall sliding connection has expansion plate (12), fixed second servo motor (10) in box (1) top one side, and the output shaft of second servo motor (10) is fixed with threaded rod (11) through the shaft coupling, open expansion plate (12) one side has the screw hole, and screw hole inner wall and threaded rod (11) form the spiro union cooperation, box (1) one side inner wall is located expansion plate (12) downside and is fixed with fixed plate (14), and opens on one side of expansion plate (12) bottom has the fixed slot, the fixed slot inner wall is fixed with second laser displacement sensor (13), and second laser displacement sensor (13) are connected through the fixed line with controller (8).

2. The device for measuring the thickness of the PCB according to claim 1, wherein the expansion plate (12) comprises a fixed frame (17), a connecting plate (18), a rotating gear (16) and a bar-shaped tooth (15), the connecting plate (18) forms a sliding fit with the inner wall of the fixed frame (17), a mounting notch is formed at the top of the connecting plate (18), the bar-shaped tooth (15) is fixed on the inner wall of the mounting notch, the bar-shaped tooth (15) is meshed with the rotating gear (16), and a crank is fixed on the inner wall of the rotating gear (16).

3. The device for measuring the thickness of the PCB as claimed in claim 1, wherein the top of the fixing plate (14) is located at the same level as the top of the supporting plate (4), and the top of the supporting plate (4) is opened with a plurality of fixing notches.

4. The device for measuring the thickness of the PCB board as recited in claim 3, wherein the inner wall of the fixed slot is slidably connected with a rubber block (19), and a spring is fixed at the bottom of the rubber block (19), and the bottom end of the spring is fixed at the inner wall of the fixed slot.

5. The device for measuring the thickness of the PCB as recited in claim 1, wherein the telescopic rod (5) comprises a metal tube and a connecting rod, the connecting rod forms a sliding fit with the inner wall of the metal tube, the outer wall of the bottom end of the metal tube is rotatably connected with a nut, and the nut forms a screw connection fit with the outer wall of the connecting rod.

6. The device for measuring the thickness of the PCB as claimed in claim 1, wherein the controller (8) and the display (9) are fixed on the outer wall of the other side of the box body (1), and both ends of the threaded rod are rotatably connected to the inner wall of the chute through bearings.