PCBA patch assembly thickness detection device

Abstract

The utility model discloses a PCBA patch assembly thickness detection device, and relates to the technical field of thickness detection devices. The structure of the device comprises a bottom plate, two vernier calipers, two door-shaped fixing frames, a measuring jaw connection guiding beam, a sliding sleeve and a probe. The bottom plate comprises a rectangular plate body; slots matched with the head of a main caliper of the vernier caliper are symmetrically formed in two side parts of the upper surface of the rectangular plate body; a positioning insertion hole and two first threaded holes are symmetrically formed in the two sides of the insertion groove; the lower end of the door-shaped fixing frame is inserted into the two positioning insertion holes and fixedly connected to the bottom plate through four first bolts. According to the utility model, the electronic digital display vernier caliper is adopted as a measuring tool, and components such as the door-shaped fixing frame, the measuring jaw connection guide beam, the sliding sleeve and the probe are combined, so that the thickness of the PCBA patch component can be rapidly and accurately measured; through reasonable structural design and material selection, the device has good stability and durability, and can meet the high-standard requirement of the modern electronic manufacturing industry on the thickness control of the PCBA patch assembly.

Description

TECHNICAL FIELD

[0001] The utility model belongs to thickness detection device technical field, especially relate to a PCBA paster subassembly thickness detection device. BACKGROUND

[0002] In the electronic manufacturing industry, the quality control of PCBA (Printed Circuit Board Assembly) paster subassembly is a key link to ensure the performance and reliability of electronic products. With the development of electronic products towards miniaturization and high density, the thickness control requirement of PCBA paster subassembly is getting higher and higher. The traditional measurement method often relies on manual operation, which is not only inefficient, but also easily affected by human factors, resulting in inaccurate measurement results.

[0003] In order to solve this problem, a device is needed that can quickly and accurately measure the thickness of PCBA paster subassembly. This device should have the following characteristics: high precision: can accurately measure the change of small size to meet the accuracy requirement of modern electronic products. Good stability: can maintain the stability of measurement in various environments to avoid errors caused by external factors. Simple operation: users can easily complete the measurement process without complex training. Strong durability: can maintain good performance after long-term use, reducing maintenance cost. Wide adaptability: suitable for different scale production needs, can meet the rapid detection of small batch production and adapt to the needs of large batch automatic production line.

[0004] Based on the above background technology, the utility model provides a PCBA paster subassembly thickness detection device. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a PCBA paster subassembly thickness detection device, which solves the problems of low efficiency, low precision, complex operation and poor stability of the existing manual measurement method by adopting the design of combining electronic digital vernier caliper with precise mechanical structure.

[0006] To solve the above technical problems, the utility model is realized by the following technical schemes:

[0007] This utility model relates to a PCBA (PCB) surface mount assembly thickness detection device, comprising a base plate, two vernier calipers, two portal frame brackets, a jaw connecting guide beam, a sliding sleeve, and a probe. The base plate comprises a rectangular plate body. Slots symmetrically formed on both sides of the upper surface of the rectangular plate body for engaging with the heads of the vernier calipers' main scales are provided. A positioning insertion hole and two first threaded holes are symmetrically formed on both sides of each slot. The lower end of the portal frame bracket is inserted into the two positioning insertion holes and fixed to the base plate by four first bolts, and the tail end of the vernier caliper's main scale is inserted into the portal frame bracket. Three second threaded holes are provided on the outer measuring jaws of the vernier calipers. The jaw connecting guide beam is mounted on the two outer measuring jaws of the two vernier calipers by six second bolts. The sliding sleeve is horizontally slidably mounted on the jaw connecting guide beam. The probe is vertically clamped and mounted on the sliding sleeve.

[0008] As a preferred technical solution of this utility model, a rectangular channel for placing PCBA patch assemblies is provided on the upper surface of the base plate between the two gantry-shaped fixing frames; the vernier caliper is an electronic digital display vernier caliper.

[0009] As a preferred embodiment of this utility model, the gate-shaped fixing frame includes a U-shaped plate; the two free ends of the U-shaped plate are inserted into the two positioning holes; the inner top surface of the U-shaped plate has a rectangular groove that mates with the tail end of the main scale of the vernier caliper; the bottom of the rectangular groove has a rectangular through hole that mates with the depth gauge of the vernier caliper; a first reinforcing rib is fixed to each of the two inner corners of the U-shaped plate; a rectangular strip is vertically fixed to each of the two opposite outer surfaces of the U-shaped plate near the free ends; the rectangular strip has two first round through holes that mate with the two first threaded holes; a second reinforcing rib is fixed between the upper surface of the rectangular strip and the outer surface of the U-shaped plate.

[0010] As a preferred embodiment of this utility model, the measuring claw connecting guide beam includes two trapezoidal plates; three second through holes corresponding to the three second threaded holes are provided on the trapezoidal plates; two parallel cylindrical rods are fixed between the two trapezoidal plates.

[0011] As a preferred embodiment of this utility model, the sliding sleeve includes a sliding sleeve that slides in cooperation with the two cylindrical rods; a vertically arranged inner cylindrical sleeve is fixed on one side of the sliding sleeve; the probe is vertically slidably installed inside the inner cylindrical sleeve; and a shank bolt is threaded through the side wall of the inner cylindrical sleeve.

[0012] As a preferred embodiment of this utility model, the probe includes a cylindrical rod with a tapered lower end; a sapphire probe head is inlaid and installed at the lower end of the cylindrical rod.

[0013] This utility model has the following beneficial effects:

[0014] 1. This utility model, through the combination of a base plate, vernier calipers, a gantry-type fixing frame, a measuring jaw connecting guide beam, a sliding sleeve, and a probe, enables high-precision thickness measurement of all components on a PCBA surface mount assembly. Two electronic digital displays can quickly read the overall thickness of the corresponding components after they are mounted on the PCB board, facilitating cross-referencing and calibration, and ensuring the accuracy of the measurement data.

[0015] 2. The gate-shaped fixing bracket design of this utility model ensures the stability of the vernier caliper in a vertical position, avoiding measurement errors caused by external factors. Simultaneously, the design of the jaws connecting the guide beam and the sliding sleeve also contributes to improving the overall stability of the testing device.

[0016] 3. The slot and positioning hole design on the base plate of this utility model makes the vernier caliper easy to install and adjust; the design of the jaw connecting the guide beam and the sliding sleeve allows the probe to move easily in the width direction for repositioning and detection, simplifying the measurement process.

[0017] 4. The detection device of this utility model is suitable for rapid, convenient and accurate measurement in small-batch production trials, and can also be used as a reference for automatic detection in subsequent large-scale automated production.

[0018] 5. The probe head of this utility model is made of sapphire material, which has good wear resistance and corrosion resistance, which is conducive to long-term stable use and ensures accurate detection of the thickness of PCBA surface mount assembly.

[0019] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the PCBA patch assembly thickness detection device of this utility model.

[0022] Figure 2 for Figure 1 The front view.

[0023] Figure 3 for Figure 1 The left view.

[0024] Figure 4 This is a schematic diagram of the base plate.

[0025] Figure 5 This is a schematic diagram of the structure of a vernier caliper.

[0026] Figure 6 This is a structural schematic diagram of a portal frame.

[0027] Figure 7 This is a schematic diagram of the structure of the jaw connecting to the guide beam.

[0028] Figure 8 This is a schematic diagram of the sliding sleeve.

[0029] Figure 9 This is a schematic diagram of the probe structure.

[0030] The attached diagram lists the components represented by each number as follows:

[0031] 1-Base plate, 2-Vernier caliper, 3-Gantry type mounting bracket, 4-Guide beam for connecting jaws, 5-Sliding sleeve, 6-Probe, 7-First bolt, 8-Second bolt, 11-Rectangular plate, 12-Slot, 13-Positioning hole, 14-First threaded hole, 15-Rectangular channel, 21-Second threaded hole, 31-U-shaped plate, 32-Rectangular groove, 33-Rectangular through hole, 34-First reinforcing rib plate, 35-Rectangular strip, 36-First round through hole, 37-Second reinforcing rib plate, 41-Trapezoidal plate, 42-Second round through hole, 43-Cylindrical rod, 51-Sliding sleeve, 52-Inner round sleeve, 53-Handled bolt, 61-Cylindrical rod, 62-Sapphire probe head. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model. Specific Implementation Example 1:

[0034] Please see Figures 1-9As shown, this utility model is a PCBA (PCBA) surface mount assembly thickness detection device, including a base plate 1, two vernier calipers 2, two portal frame brackets 3, a jaw connecting guide beam 4, a sliding sleeve 5, and a probe 6. The base plate 1 includes a rectangular plate 11. Slots 12, which mate with the heads of the main scales of the vernier calipers 2, are symmetrically formed on both sides of the upper surface of the rectangular plate 11. A positioning insertion hole 13 and two first threaded holes 14 are symmetrically formed on both sides of the slot 12. The lower end of the portal frame bracket 3 is inserted into the two positioning insertion holes 13 and fixed to the base plate 1 by four first bolts 7, and the tail end of the main scale of the vernier calipers 2 is inserted into the portal frame bracket 3. Three second threaded holes 21 are formed on the outer measuring jaws of the vernier calipers 2. The jaw connecting guide beam 4 is mounted on the two outer measuring jaws of the two vernier calipers 2 by six second bolts 8. The sliding sleeve 5 is horizontally slidably mounted on the jaw connecting guide beam 4. The probe 6 is vertically clamped and mounted on the sliding sleeve 5. The base plate 1 has a rectangular channel 15 for placing PCBA surface mount components between the two portal frame brackets 3 on its upper surface. The vernier caliper 2 is an electronic digital vernier caliper.

[0035] Two slots 12 are made in the base plate 1. Two vernier calipers 2 are inserted vertically into the two slots 12. Two portal frame brackets 3 are used to stabilize the vertical position of the two vernier calipers 2. A jaw connecting guide beam 4 is installed on the outer measuring jaw of the two vernier calipers 2. A sliding sleeve 5 is installed on the jaw connecting guide beam 4, which slides between the two vernier calipers 2. A probe 6 is clamped on the sliding sleeve 5. The relative position of the probe 6 and the sliding sleeve 5 is adjusted according to the measurement needs. The standard soldered and inspected PCBA surface mount assembly is placed on the rectangular channel 15. Before measuring the PCBA surface mount assembly, the jaw connecting guide beam 4 is moved until the probe 6 contacts the rectangular channel 15. The electronic digital displays of the two vernier calipers 2 are zeroed. The sliding sleeve 5 is moved back and forth on the jaw connecting guide beam 4. The electronic digital displays of the two vernier calipers 2 are observed to see if there is any change, so as to calibrate the accuracy of the entire testing device.

[0036] After calibration, the PCBA patch assembly is moved within the rectangular channel 15, and the sliding sleeve 5 is moved to measure the thickness of all components on the PCBA patch assembly. The electronic digital displays of the two vernier calipers 2 can quickly read the overall thickness of the corresponding components after they are mounted on the PCB board. The data from the two electronic digital displays can be cross-referenced, allowing for timely detection of large errors in the measuring device when significant deviations occur, ensuring the accuracy of the measurement data. The standard height of each component after soldering is marked through physical measurement, making it fast, convenient, and accurate for small-batch production trials. It can also be used as a reference for automatic inspection in subsequent large-scale automated production.

[0037] The portal frame 3 includes a U-shaped plate 31. The two free ends of the U-shaped plate 31 are inserted into two positioning holes 13. A rectangular groove 32 is formed on the inner top surface of the U-shaped plate 31 to mate with the tail end of the main scale of the vernier caliper 2. A rectangular through hole 33 is formed at the bottom of the rectangular groove 32 to mate with the depth gauge of the vernier caliper 2. A first reinforcing rib 34 is fixed to each of the two inner corners of the U-shaped plate 31. A rectangular strip 35 is vertically fixed to each of the two opposite outer surfaces of the U-shaped plate 31 near the free ends. Two first round through holes 36 are formed on the rectangular strip 35, corresponding to the two first threaded holes 14. A second reinforcing rib 37 is fixed between the upper surface of the rectangular strip 35 and the outer surface of the U-shaped plate 31. The portal frame 3 has a reasonable and reliable overall structure, provides excellent stability for the vernier caliper 2, and is easy to install and adjust.

[0038] The measuring jaw connecting guide beam 4 includes two trapezoidal plates 41. Each trapezoidal plate 41 has three second through holes 42 that correspond to three second threaded holes 21. Two parallel cylindrical rods 43 are fixed between the two trapezoidal plates 41. The sliding sleeve 5 includes a sliding sleeve 51 that slides with the two cylindrical rods 43. A vertically arranged inner cylindrical sleeve 52 is fixed to one side of the sliding sleeve 51. The probe 6 is vertically slidably installed inside the inner cylindrical sleeve 52. A shank bolt 53 is threaded through the side wall of the inner cylindrical sleeve 52. The probe 6 includes a cylindrical rod 61 with a tapered lower end. A sapphire probe head 62 is embedded in the lower end of the cylindrical rod 61.

[0039] The jaw connecting guide beam 4 facilitates the simultaneous movement of the verniers of the two vernier calipers 2. The sliding sleeve 5 facilitates the movement and repositioning of electronic components in the width direction for detection. The probe 6 has a small contact point with the component and is not easily worn, which is conducive to the long-term stable use of the probe 6 and ensures the accurate detection of the thickness of the PCBA surface mount assembly.

[0040] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A PCBA (Printed Circuit Board Assembly) thickness detection device, characterized in that: It includes a base plate (1), two vernier calipers (2), two gantry-type fixing brackets (3), a measuring jaw connecting guide beam (4), a sliding sleeve (5), and a probe (6); The base plate (1) includes a rectangular plate (11); the upper surface of the rectangular plate (11) is symmetrically provided with slots (12) on both sides to mate with the head of the main scale of the vernier caliper (2); a positioning hole (13) and two first threaded holes (14) are symmetrically provided on both sides of the slot (12); the lower end of the gantry frame (3) is inserted into the two positioning holes (13) and fixed to the base plate (1) by four first bolts (7), and the tail end of the main scale of the vernier caliper (2) is inserted into the gantry frame (3); The vernier caliper (2) has three second threaded holes (21) on its outer measuring jaws; The measuring jaw connecting guide beam (4) is mounted on the two outer measuring jaws of the two vernier calipers (2) by six second bolts (8); The sliding sleeve (5) is horizontally slidably mounted on the measuring jaw connecting guide beam (4); the probe (6) is vertically clamped and mounted on the sliding sleeve (5).

2. The PCBA patch assembly thickness detection device according to claim 1, characterized in that, The upper surface of the base plate (1) is provided with a rectangular channel (15) for placing PCBA patch assemblies between the two gantry-type fixing brackets (3); the vernier caliper (2) is an electronic digital display vernier caliper.

3. The PCBA surface mount assembly thickness detection device according to claim 1, characterized in that, The gantry-type fixing frame (3) includes a U-shaped plate (31); the two free ends of the U-shaped plate (31) are inserted into the two positioning holes (13); the inner top surface of the U-shaped plate (31) is provided with a rectangular groove (32) that is inserted into the tail end of the main scale of the vernier caliper (2); the bottom of the rectangular groove (32) is provided with a rectangular through hole (33) that is in sync with the depth gauge of the vernier caliper (2); a first reinforcing rib plate (34) is fixed to each of the two inner corners of the U-shaped plate (31); a rectangular strip (35) is vertically fixed to each of the two opposite outer sides of the U-shaped plate (31) near the free end; two first round through holes (36) are provided on the rectangular strip (35) that are in sync with the two first threaded holes (14); a second reinforcing rib plate (37) is fixed between the upper surface of the rectangular strip (35) and the outer side of the U-shaped plate (31).

4. The PCBA patch assembly thickness detection device according to claim 1, characterized in that, The measuring jaw connecting guide beam (4) includes two trapezoidal plates (41); the trapezoidal plates (41) are provided with three second through holes (42) that correspond to the three second threaded holes (21); and two parallel cylindrical rods (43) are fixed between the two trapezoidal plates (41).

5. The PCBA patch assembly thickness detection device according to claim 4, characterized in that, The sliding sleeve (5) includes a sliding sleeve (51) that slides in cooperation with the two cylindrical rods (43); a vertically arranged inner cylindrical sleeve (52) is fixed on one side of the sliding sleeve (51); the probe (6) is vertically slidably installed in the inner cylindrical sleeve (52); a shank bolt (53) is threaded through the side wall of the inner cylindrical sleeve (52).

6. The PCBA patch assembly thickness detection device according to claim 5, characterized in that, The probe (6) includes a cylindrical rod (61) with a tapered lower end; a sapphire probe tip (62) is inlaid at the lower end of the cylindrical rod (61).

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