Manual plate thickness measuring instrument

Abstract

The utility model discloses a manual board thickness measuring instrument, and relates to the technical field of PCB measurement. The device comprises a cabinet, the top surface of the cabinet is fixedly provided with a marble reference plane, the top surface of the marble reference plane is fixedly provided with a mounting rack, the front side wall of the mounting rack is provided with a position switching mechanism, and the position switching mechanism is fixedly inserted with a pen-shaped probe. And a downward pressing mechanism is fixedly mounted on the rear side wall of the mounting frame. According to the utility model, by adopting the pen-shaped probe and the position switching mechanism, the rapid and accurate measurement of the thickness of the PCB is realized, the pen-shaped probe can softly touch a metal measuring point on the PCB and measure the thickness value through the cooperation of the pressing mechanism and the spring in the pen-shaped probe, and meanwhile, the transverse position can be rapidly switched through the position switching mechanism, so that the thickness of the PCB can be rapidly measured. The metal contacts at different intervals of the PCB can be measured conveniently, the measurement process is efficient and convenient, and the low efficiency and the operation complexity of traditional point-to-point one-by-one measurement are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB board measurement, in particular to a manual board thickness measuring instrument. Background Art

[0002] PCB gold fingers refer to the metal contact points on a printed circuit board (PCB), usually located at the edge of the circuit board. The function of PCB gold fingers is to ensure a reliable electrical connection with the circuit board through the connecting elements of the gold fingers. Secondly, PCB gold fingers are used to transmit signals and current. They serve as the input and output interfaces of the circuit board, capable of transmitting signals and current from electronic components to the circuit board, and from the circuit board to other electronic components. As input and output interfaces, these metal contact points need to have their thickness controlled. Metal contacts that do not meet the thickness requirements will have poor contact, affecting the signal transmission of components. Therefore, it is extremely important to control the thickness of the metal contacts on the PCB.

[0003] Existing measurement technologies primarily rely on probes for point-to-point measurement. For example, common PCB testing requires the probe to be touched one location at a time. This method operates as follows: the probe is first touched to a specific point on the PCB, then the probe is raised to detect the contact point. The PCB is then moved to the next location for measurement, and this cycle repeats. However, this point-to-point measurement approach has significant drawbacks, primarily in terms of inefficiency and operational complexity, making it unsuitable for large-scale measurement operations.

[0004] For this purpose, a manual plate thickness measuring instrument is proposed. Utility Model Content

[0005] The purpose of the present invention is to solve the problems raised in the above background technology, and to provide a manual plate thickness measuring instrument.

[0006] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0007] A manual plate thickness measuring instrument includes a chassis, a marble reference plane is fixedly installed on the top surface of the chassis, a mounting bracket is fixedly installed on the top surface of the marble reference plane, a position switching mechanism is provided on the front side wall of the mounting bracket, and a pen-shaped stylus is fixedly plugged into the position switching mechanism, a pressing mechanism is fixedly installed on the rear side wall of the mounting bracket, and an L-shaped connecting rod is fixedly provided on the surface of the measuring part of the pen-shaped stylus.

[0008] Furthermore, the position switching mechanism includes a track fixedly mounted on the front side wall of the mounting frame, a quick chuck is slidably mounted on the surface of the track, a mounting plate is fixedly mounted on the lower side wall of the quick chuck, a mounting bracket is fixedly mounted on the front side wall of the mounting plate, and a pen-shaped stylus is fixedly inserted into the inside of the mounting bracket.

[0009] Furthermore, the pressing mechanism includes two groups of cylinders fixedly mounted on the rear side wall of the mounting frame, and a U-shaped frame is fixedly mounted on the bottom ends of the two groups of cylinders, and a pressure head is provided on the surface sliding sleeve of the U-shaped frame.

[0010] Furthermore, the number of the stylus pins and the indenter is the same, and the multiple groups of stylus pins and the indenter are arranged correspondingly, and the L-shaped connecting rod on the surface of the stylus pin is located above the U-shaped frame.

[0011] Furthermore, the pressing portion of the pressure head is made of rubber material.

[0012] Furthermore, when the cylinder drives the U-shaped frame and the pressure head to lift vertically upward, the detection part of the pencil-shaped stylus is synchronously lifted vertically via the L-shaped connecting rod.

[0013] The beneficial effects of the utility model are as follows:

[0014] The PCB is flattened by the downward pressure mechanism. The stylus falls on the metal measuring point of the PCB through the expansion and contraction force of its own spring to measure the thickness value. The stylus can quickly switch its lateral position through the position switching mechanism, realizing rapid measurement of metal contacts with different spacings. The stylus falls through its own gravity and the expansion and contraction force of the internal spring without damaging or bumping the metal contacts. The position switching mechanism ensures that when the stylus is fixed, its verticality will not be affected, and only its left and right movement will be restricted, allowing for rapid adjustment of the lateral position.

[0015] By adopting a stylus and a position switching mechanism, rapid and accurate measurement of PCB thickness is achieved. The stylus, through the cooperation of the downward pressure mechanism and its internal spring, can gently touch the metal measuring points on the PCB to measure the thickness value. At the same time, the position switching mechanism can quickly switch the lateral position, facilitating the measurement of metal contacts at different spacings on the PCB. This design makes the measurement process efficient and convenient, avoiding the inefficiency and operational complexity of traditional point-to-point measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a front view of the utility model;

[0018] Figure 3 It is a partial front view of the utility model;

[0019] Figure 4 It is a partial rear view of the utility model;

[0020] Figure numerals: 1. Chassis; 2. Marble reference plane; 3. Mounting frame; 4. Position switching mechanism; 401. Track; 402. Quick chuck; 403. Mounting plate; 404. Mounting bracket; 5. Pen-shaped stylus; 6. Pressing mechanism; 601. Cylinder; 602. U-shaped frame; 603. Pressing head; 7. L-shaped connecting rod. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0023] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. In addition, the terms "first," "second," etc. are used only to distinguish the descriptions and are not to be understood as indicating or implying relative importance.

[0024] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of the present invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the present invention.

[0025] like Figures 1 to 4As shown, the manual plate thickness measuring instrument includes a chassis 1, a marble reference plane 2 is fixedly installed on the top surface of the chassis 1, a mounting bracket 3 is fixedly installed on the top surface of the marble reference plane 2, a position switching mechanism 4 is provided on the front side wall of the mounting bracket 3, and a pen-shaped probe 5 is fixedly plugged into the position switching mechanism 4, a pressing mechanism 6 is fixedly installed on the rear side wall of the mounting bracket 3, and an L-shaped connecting rod 7 is fixedly provided on the surface of the measuring part of the pen-shaped probe 5. More specifically, when not detecting, the detection portion of the stylus 5 is raised by the pressing mechanism 6 via the L-shaped connecting rod 7. During measurement, the PCB is flattened by the pressing mechanism 6. The stylus 5 falls on the metal measuring point of the PCB through the elastic force of its own spring to measure the thickness value. The stylus 5 can quickly switch its lateral position through the position switching mechanism 4 to achieve rapid measurement of metal contacts with different spacings. The stylus 5 falls due to its own gravity and the elastic force of the internal spring and will not damage or bump the metal contacts. The position switching mechanism 4 ensures that when the stylus 5 is fixed, its verticality will not be affected, and only its left and right movement will be restricted, so that the lateral position can be quickly adjusted.

[0026] The position switching mechanism 4 includes a track 401 fixedly mounted on the front side wall of the mounting frame 3. A quick-action chuck 402 is slidably mounted on the surface of the track 401. A mounting plate 403 is fixedly mounted on the lower side wall of the quick-action chuck 402. A mounting bracket 404 is fixedly mounted on the front side wall of the mounting plate 403. The stylus 5 is fixedly inserted into the interior of the mounting bracket 404. More specifically, the mounting bracket 404 on the front side wall of the mounting plate 403 secures the stylus 5. The quick-action chuck 402 enables the left and right lateral movement of the mounting plate 403. When the quick-action chuck 402 is unlocked, it moves along the surface of the track 401 to adjust the lateral position of the stylus 5. When the quick-action chuck 402 is locked, the left and right lateral positions of the mounting plate 403 and the stylus 5 are limited.

[0027] The downward pressure mechanism 6 comprises two sets of cylinders 601 fixedly mounted on the rear sidewall of the mounting frame 3. A U-shaped frame 602 is fixedly mounted at the bottom end of each set of cylinders 601. A pressing head 603 is slidingly mounted on the surface of the U-shaped frame 602. More specifically, the cylinders 601 drive the U-shaped frame 602 and pressing head 603 to move vertically downward, vertically pressing the PCB on the top surface of the marble reference plane 2. When the measurement is completed, the cylinders 601 drive the U-shaped frame 602 to move vertically upward, thereby vertically lifting the detection portion of the stylus 5, which is driven vertically upward by the L-shaped connecting rod 7.

[0028] The number of stylus probes 5 and indenter 603 is the same, and multiple sets of stylus probes 5 are arranged in a corresponding manner with the indenter 603. Furthermore, the L-shaped connecting rod 7 on the surface of the stylus probe 5 is located above the U-shaped frame 602. More specifically, the multiple sets of stylus probes 5 and indenter 603 are arranged in a corresponding manner, allowing the indenter 603 to vertically press the PCB during testing.

[0029] The pressing portion of the pressure head 603 is made of rubber material. More specifically, the pressure head 603 is made of rubber material, thereby avoiding applying a large pressure to the PCB board.

[0030] When the cylinder 601 drives the U-shaped frame 602 and the indenter 603 to move vertically upward, the detection portion of the stylus 5 is simultaneously lifted vertically via the L-shaped connecting rod 7. More specifically, the cylinder 601 drives the U-shaped frame 602 to move vertically upward, thereby enabling the detection portion of the stylus 5 to be lifted vertically via the L-shaped connecting rod 7.

[0031] In summary: when not testing, the detection part of the stylus 5 is raised by the pressing mechanism 6 via the L-shaped connecting rod 7. During measurement, the PCB is flattened by the pressing mechanism 6. The stylus 5 falls on the metal measuring point of the PCB due to the elastic force of its own spring to measure the thickness. The stylus 5 can quickly switch its lateral position through the position switching mechanism 4 to achieve rapid measurement of metal contacts with different spacings. The stylus 5 falls due to its own gravity and the elastic force of the internal spring and will not damage or bump the metal contacts. The position switching mechanism 4 ensures that when the stylus 5 is fixed, its verticality will not be affected, and only its left and right movement is restricted, so that the lateral position can be quickly adjusted.

[0032] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed for the present invention is defined by the appended claims and their equivalents.

Claims

1. Manual plate thickness measuring instrument, characterized in that, The invention comprises a chassis (1), a marble reference plane (2) being fixedly mounted on the top surface of the chassis (1), a mounting frame (3) being fixedly mounted on the top surface of the marble reference plane (2), a position switching mechanism (4) being provided on the front side wall of the mounting frame (3), a pen-shaped stylus (5) being fixedly plugged into the position switching mechanism (4), a pressing mechanism (6) being fixedly mounted on the rear side wall of the mounting frame (3), and an L-shaped connecting rod (7) being fixedly sleeved on the surface of the measuring portion of the pen-shaped stylus (5).

2. The manual plate thickness measuring instrument according to claim 1, characterized in that: The position switching mechanism (4) comprises a track (401) fixedly mounted on the front side wall of the mounting frame (3); a quick chuck (402) is slidably mounted on the surface of the track (401); a mounting plate (403) is fixedly mounted on the lower side wall of the quick chuck (402); a mounting bracket (404) is fixedly mounted on the front side wall of the mounting plate (403); and a pen-shaped stylus (5) is fixedly inserted into the interior of the mounting bracket (404).

3. The manual plate thickness measuring instrument according to claim 1, characterized in that: The pressing mechanism (6) comprises two groups of cylinders (601) fixedly mounted on the rear side wall of the mounting frame (3), and a U-shaped frame (602) is fixedly mounted on the bottom ends of the two groups of cylinders (601), and a pressure head (603) is provided on the surface sliding sleeve of the U-shaped frame (602).

4. The manual plate thickness measuring instrument according to claim 3, characterized in that: The number of the pen-shaped stylus (5) and the pressure head (603) is the same, and multiple groups of pen-shaped stylus (5) and the pressure head (603) are arranged correspondingly, and the L-shaped connecting rod (7) on the surface of the pen-shaped stylus (5) is located above the U-shaped frame (602).

5. The manual plate thickness measuring instrument according to claim 3, characterized in that: The pressing portion of the pressure head (603) is made of rubber material.

6. The manual plate thickness measuring instrument according to claim 3, characterized in that: When the cylinder (601) drives the U-shaped frame (602) and the pressure head (603) to lift vertically upward, the detection part of the pen-shaped stylus (5) is synchronously lifted vertically via the L-shaped connecting rod (7).

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