Distance measuring device for circuit board processing
By designing an adjustable offset angle measuring plate, a movable and detachable limit plate, and a detachable measuring ruler, combined with a laser reader, the problem of measurement errors when the circuit board measuring device faces the board edge deviation was solved, realizing efficient and accurate circuit board size and deviation detection, and reducing the defect rate.
Patent Information
- Application Number
- CN202520113778.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-01-17
AI Technical Summary
Existing circuit board measurement devices are prone to measurement errors when facing skewed board edges, leading to increased defect rates and difficulty in adapting to the measurement of circuit boards with different edge shapes.
A measuring plate with an adjustable offset angle, a movable and detachable limiting plate, and a detachable measuring ruler were designed. Combined with a laser reader, it can measure the length and width dimensions of a circuit board and detect the edge skew, supporting the measurement of different edge shapes.
It improves the accuracy of circuit board measurement, reduces the defect rate, and adapts to the measurement needs of circuit boards with different edge shapes, making it highly practical and worthy of widespread application.
Smart Images

Figure CN223755982U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to circuit board technical field especially relates to a distance measuring device for circuit board processing. BACKGROUND
[0002] Circuit board is also called line board, it is important electronic component, is the support body of electronic components, is the carrier of electrical interconnection of electronic components. Almost every kind of electronic equipment, small to electronic watch, calculator, large to computer, communication electronic equipment, military weapon system, as long as integrated circuit and other electronic components, in order to make the electrical interconnection between various components, circuit board is used. Circuit board is composed of insulating bottom plate, connecting wire and solder pad of assembled electronic component, has the dual role of conductive circuit and insulating bottom plate.
[0003] Circuit board needs to measure its size specification after cutting to match subsequent processing station, fixture and the like. The existing circuit board measurement is mostly simple structure, and the left and right clamping structures are often used to limit the two ends of the circuit board and measure the length of the circuit board at the same time, but such clamping structure is prone to measurement error when encountering defective circuit board with board edge deflection. UTILITY MODEL CONTENTS
[0004] Therefore, it is necessary to provide a distance measuring device for circuit board processing in view of the deficiencies in the prior art.
[0005] A distance measuring device for circuit board processing includes a bottom plate, a limiting plate, a sliding rod and a measuring plate. The limiting plate and the sliding rod are both installed on the bottom plate, and the limiting plate is located on the left side of the bottom plate, and the sliding rod is located on the front and rear sides of the limiting plate. The measuring plate is installed on the sliding rod and can slide left and right. The measuring plate includes a sliding shaft sleeve, a deflection shaft and a plate body. The sliding shaft sleeve is threaded on the sliding rod and can slide left and right. The deflection shaft is installed on the upper end of the sliding shaft sleeve and can rotate freely. The two ends of the plate body are respectively connected with the deflection shaft and can slide and rotate freely.
[0006] Further, the bottom plate is also provided with a limiting hole, and the bottom of the limiting plate is correspondingly provided with a limiting block. The limiting plate is clamped and installed on the bottom plate, and the limiting block is correspondingly clamped and installed in the limiting hole.
[0007] Further, the distance measuring device for circuit board processing also includes a ruler, and the front and rear sides of the bottom plate are also provided with mounting grooves. The ruler is clamped and installed in the mounting grooves and located outside the two ends of the measuring plate.
[0008] Furthermore, the measuring scale includes a ruler strip, a zero-adjustment block, and a flexible block. The ruler strip, zero-adjustment block, and flexible block are all installed within a mounting groove, with the zero-adjustment block and flexible block located at opposite ends of the ruler strip. One end of the zero-adjustment block is threaded onto one side wall of the mounting groove, while the other end abuts against the ruler strip. One end of the flexible block abuts against the other side wall of the mounting groove and is elastically extendable, while the other end abuts against the ruler strip.
[0009] Furthermore, the ranging device for circuit board processing also includes a laser reader, which is installed at both ends of the measuring plate and is positioned vertically and vertically corresponding to the measuring ruler.
[0010] In summary, the beneficial effects of this utility model's distance measuring device for circuit board processing are as follows: By designing an adjustable offset angle measuring plate, the distance measuring device can not only measure the length and width dimensions of the circuit board, but also detect whether the board edge is skewed, thereby further screening and reducing the defect rate of the circuit board and preventing defective circuit boards from entering subsequent processes; the design of a movable and detachable limiting plate allows for easy replacement, and the distance measuring device can measure circuit boards with different edge shapes; the design of a detachable measuring ruler allows for measurements of different precisions as needed; this utility model is highly practical and has significant potential for widespread application. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of a distance measuring device for circuit board processing according to the present invention;
[0012] Figure 2 for Figure 1 A schematic diagram of the decomposed structure;
[0013] Figure 3 for Figure 2 Schematic diagram of the midsole plate;
[0014] Figure 4 for Figure 2 Exploded view of the middle limiting plate;
[0015] Figure 5 for Figure 2 Exploded view of the measuring plate;
[0016] Figure 6 for Figure 2 A schematic diagram of the exploded structure of a medium measuring scale. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the utility model.
[0018] As Figures 1 to 6 shown, the utility model provides a kind of distance measuring device 100 for circuit board processing, it includes bottom plate 10, limiting plate 20, slide bar 30 and measuring plate 40.The limiting plate 20 and slide bar 30 are equipped on bottom plate 10, and limiting plate 20 is located at the left side of bottom plate 10, and slide bar 30 is located at the front and back of limiting plate 20, the measuring plate 40 is equipped on slide bar 30 and can slide left and right.
[0019] Limiting hole 11 is further equipped on the bottom plate 10, limiting block 21 is correspondingly equipped at the bottom of limiting plate 20, limiting plate 20 is clamped and equipped on bottom plate 10 and limiting block 21 is correspondingly clamped and equipped in limiting hole 11.The detachable limiting plate 20 structure can be replaced at any time, specifically in the embodiment, straight edge shape limiting plate 20 can be replaced by curved edge shape limiting plate 20, to facilitate the limiting measurement of special-shaped curved edge shape circuit board.
[0020] The measuring plate 40 includes limiting block 41, offset pivot 42 and plate body 43, the limiting block 41 is threaded on slide bar 30 and can slide left and right, the offset pivot 42 is equipped on the upper end of limiting block 41 and can be rotatably moved, the both ends of plate body 43 are movably connected with offset pivot 42, and can be movably slid and rotated.The measuring plate 40 structure of the end movably rotatable offset is designed, when measuring circuit board with inclined plate edge, it can also be closely fitted, to more accurately judge whether the cutting of circuit board is accurate and qualified.
[0021] The distance measuring device 100 for circuit board processing further includes ruler 50, the front and back of bottom plate 10 are further provided with mounting groove 12, the ruler 50 is clamped and equipped in mounting groove 12 and is located at the both ends outside of measuring plate 40.Specifically in the embodiment, the ruler 50 includes scale bar 51, zero adjustment block 52 and elastic block 53, the scale bar 51, zero adjustment block 52 and elastic block 53 are all equipped in mounting groove 12, and zero adjustment block 52 and elastic block 53 are divided and arranged at both ends of scale bar 51.The one end of zero adjustment block 52 is threaded and connected on one side wall of mounting groove 12, and the other end of the zero adjustment block 52 is abutted with scale bar 51, the one end of elastic block 53 is abutted with the other side wall of mounting groove 12 and can be elastically stretched and contracted, and the other end of the elastic block 53 is abutted with scale bar 51.
[0022] Before using the distance measuring device, the ruler 51 with appropriate accuracy can be selected and embedded into the installation slot 12, and the zero adjustment knob 52 is rotated to adjust the zero of the ruler 50, so as to obtain more accurate measurement results. Then, the circuit board is clamped between the limiting plate 20 and the measuring plate 40, the measuring plate 40 is tightly attached to the edge of the circuit board, and then the end of the measuring plate 40 is read in correspondence with the ruler 50, so that the measurement data of the front and back sides can be obtained. By comparing the measurement data of the two sides, if the difference is too large, it can be determined that the edge of the circuit board is skewed, that is, the unqualified circuit board is cut; if the difference between the measurement data of the two sides is within the standard error, the average value of the two groups of data can be taken as the length measurement value of the circuit board.
[0023] The distance measuring device 100 for circuit board processing further comprises a laser reader 60, which is arranged at both ends of the measuring plate 40 and corresponds to the upper and lower positions of the ruler 50. The visual laser is used for marking reading, so that the measurement personnel can read the measurement data more conveniently and accurately.
[0024] In summary, the distance measuring device 100 for circuit board processing has the beneficial effects that: by designing the measuring plate 40 with adjustable offset angle, the distance measuring device can not only measure the length and width of the circuit board, but also detect whether the edge of the circuit board is skewed, so as to further screen and reduce the defective rate of the circuit board, and avoid the flow of defective circuit boards into the subsequent process; the limiting plate 20 is designed to be movable and detachable, so that the distance measuring device can measure circuit boards with different edge shapes; the ruler 50 is designed to be detachable, so that different accuracy measurements can be made according to the requirements; the distance measuring device has strong practicability and strong popularization significance.
[0025] The above-described embodiments only express one embodiment of the utility model, which is described in detail, but it cannot be understood as a limitation on the scope of the utility model patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the utility model, some modifications and improvements can be made, which belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.
Claims
1. A ranging device for circuit board processing, characterized in that: The device includes a base plate, a limiting plate, a sliding rod, and a measuring plate. The limiting plate and the sliding rod are both mounted on the base plate, with the limiting plate located on the left side of the base plate and the sliding rod located on the front and rear sides of the limiting plate. The measuring plate is mounted on the sliding rod and can slide left and right. The measuring plate includes a sliding bushing, an offset rotating shaft, and a plate body. The sliding bushing passes through the sliding rod and can slide left and right. The offset rotating shaft is mounted on the upper end of the sliding bushing and can rotate. The two ends of the plate body are respectively movably connected to the offset rotating shaft and can slide and rotate.
2. The ranging device for circuit board processing as described in claim 1, characterized in that: The base plate is also provided with a limiting hole, and the bottom of the limiting plate is provided with a corresponding limiting block. The limiting plate is snapped onto the base plate and the limiting block is snapped onto the limiting hole.
3. The ranging device for circuit board processing as described in claim 1, characterized in that: It also includes a measuring ruler, and the base plate is provided with mounting grooves on the front and rear sides. The measuring ruler is fitted into the mounting grooves and located on the outer sides of both ends of the measuring plate.
4. The ranging device for circuit board processing as described in claim 3, characterized in that: The measuring tape includes a ruler strip, a zeroing block, and a flexible block. The ruler strip, the zeroing block, and the flexible block are all installed in the mounting groove, with the zeroing block and the flexible block located at opposite ends of the ruler strip. One end of the zeroing block is threaded through and screwed onto one side wall of the mounting groove, while the other end of the zeroing block abuts against the ruler strip. One end of the flexible block abuts against the other side wall of the mounting groove and is elastically extendable, while the other end of the flexible block abuts against the ruler strip.
5. The ranging device for circuit board processing as described in claim 3, characterized in that: It also includes a laser reader, which is installed at both ends of the measuring plate and is positioned vertically and vertically corresponding to the measuring scale.