Product external connection size detection device

Abstract

The utility model discloses a product external connection size detection device. The positioning mechanism comprises a positioning seat (4) fixed on the mounting base (1), and a pressing mechanism A (2) and a pressing mechanism B (7) are respectively arranged on two sides of the positioning seat (4); the mobile measuring mechanism comprises a transverse measuring assembly and a longitudinal measuring assembly; the longitudinal measuring assembly comprises a V-shaped block A (8), the V-shaped block A (8) is in sliding connection with a movable seat A (10) in the longitudinal direction, the movable seat A (10) is in transverse sliding connection with a fixed plate A (12) through a guide rail A (11), and the fixed plate A (12) is connected with the mounting base (1) through a supporting component A (17); the transverse measuring assembly comprises a V-shaped block B (13), the V-shaped block B (13) is in transverse sliding connection with a movable seat B (14), the movable seat B (14) is in longitudinal sliding connection with a fixed plate B (15) through a guide rail B (16), and the fixed plate B (15) is connected with the mounting base (1) through a supporting component B (18); and the sliding directions of the V-shaped blocks A and B are vertical. The external connection size detection device is simple in structure, high in detection efficiency, good in precision control, stable and reliable in quality, convenient to operate and capable of meeting the measurement requirement of an assembly production field.

Description

Technical Field

[0001] The utility model relates to the technical field of on-site detection of dimensions of external connection ports of aviation products, in particular to a device for detecting dimensions of external connection ports of products. Background Art

[0002] To ensure the correct assembly position of aviation products, key external connection points must be inspected beforehand to eliminate potential assembly and connection problems within the company. Although all parts are inspected for dimensional and form tolerances during machining, and the assembly process utilizes appropriate tooling such as drilling, press-fitting, and positioning to assist with assembly and positioning, the finished parts cannot be guaranteed to 100% meet external connection requirements.

[0003] The resulting spatial dimensions of parts after assembly are numerous, and these dimensions cannot be measured using common measuring tools such as calipers, internal micrometers, and depth gauges commonly used in production. Using position gauges, commonly used in machining processes, results in high tooling costs and long manufacturing cycles. Relying on three-dimensional coordinate measurement (CMM) also has a long inspection cycle and is inconvenient for use on the assembly site. Investing in specialized testing equipment is also prohibitively expensive and unsuitable for new product development. Utility Model Content

[0004] The purpose of the utility model is to provide a device for detecting the external dimensions of a product. The utility model has a simple structure, high detection efficiency, good precision control, stable and reliable quality, and convenient operation, and can meet the measurement needs of assembly production sites.

[0005] The technical solution of the utility model is: a product external dimension detection device, including a mounting base, a positioning mechanism for positioning the measurement coordinate reference origin is provided on one side of the mounting base, and a mobile measuring mechanism is provided on the other side; the positioning mechanism includes a positioning seat fixed on the mounting base, and a clamping mechanism A and a clamping mechanism B are respectively provided on both sides of the positioning seat; the mobile measuring mechanism includes a transverse measuring component and a longitudinal measuring component; the longitudinal measuring component includes a V-block A, the V-block A is connected to the mobile seat A in a longitudinal sliding manner, the mobile seat A is connected to the fixed plate A in a transverse sliding manner via a guide rail A, and the fixed plate A is connected to the mounting base via a supporting component A; the transverse measuring component includes a V-block B, the V-block B is connected to the mobile seat B in a transverse sliding manner, the mobile seat B is connected to the fixed plate B in a longitudinal sliding manner via a guide rail B, and the fixed plate B is connected to the mounting base via a supporting component B; the sliding directions of the V-blocks A and B are vertical.

[0006] In the aforementioned product external dimension detection device, a positioning pin for angular positioning is provided on the positioning seat.

[0007] In the aforementioned product external dimension detection device, baffles are provided on both sides of the V-blocks A and B to prevent them from falling out.

[0008] In the aforementioned product external dimension detection device, both V-blocks A and B are engraved with lines.

[0009] In the aforementioned product external dimension detection device, both movable seats A and B are engraved with engraved lines.

[0010] In the aforementioned product external dimension detection device, the coincidence error between the position of the scale line on the V-block and the theoretical center position of the measured outer circle formed by the V-block does not exceed 0.01 mm.

[0011] The advantages of the utility model are: the utility model proposes an external dimension detection device with simple structure, high detection efficiency, good precision control, stable and reliable quality, easy operation, and the ability to meet the measurement needs of assembly production sites.

[0012] The external connection interfaces formed after product assembly are not in the same coordinate system. Common measuring tools such as calipers, internal micrometers, and depth gauges used in production cannot effectively measure spatial dimensions. This utility model proposes a detection device composed of conventional mechanical components such as positioning shafts / holes, slide rails, and V-blocks to detect the dimensions of external connection interfaces.

[0013] The measurement of spatial dimensions requires a high level of technical skills from on-site inspectors when there is no measuring instrument to cooperate with the measurement. The dimension detection device proposed by the utility model can simplify the labor intensity of the inspectors.

[0014] Since the external dimensions to be detected are not on the same horizontal plane, conventional detection methods require conversion of the detection reference, which makes detection difficult and takes a long time. The dimension detection device proposed in the present invention reduces the detection difficulty by converting the spatial coordinates.

[0015] The external dimension detection device of the utility model can be placed at the assembly site and can be used for a long time after regular calibration. The product does not need to be transported to the metering room, which reduces product bumps and damages, redundant parts, etc. caused during the transportation process.

[0016] The external dimension detection device of the utility model can directly detect and read the data visually, does not need more detection instruments and gauges, and has little dependence on the detection environment, equipment and personnel.

[0017] In summary, the present invention demonstrates high inspection efficiency, excellent precision control, and reliable quality. It shortens the inspection time for post-assembly external port connections, reduces interference from external installations to zero, and meets the requirements for inspecting the spatial dimensions of external port connections. While three-coordinate measurement methods typically require 30 minutes for single-piece measurements, the present invention only requires 2 minutes. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the location of the external connection interface of the product to be tested in this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the product to be tested in this utility model;

[0021] Figure 4 This is a three-dimensional model diagram of the utility model. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0023] Example 1. A device for detecting the external dimensions of a product, see Figures 1-4 , including a mounting base 1, one side of the mounting base 1 is provided with a positioning mechanism for positioning the measurement coordinate reference origin, and the other side is provided with a mobile measuring mechanism; the positioning mechanism includes a positioning seat 4 fixed on the mounting base 1, and a clamping mechanism A2 and a clamping mechanism B7 are respectively provided on both sides of the positioning seat 4; the mobile measuring mechanism includes a transverse measurement component and a longitudinal measurement component; the longitudinal measurement component includes a V-block A8, the V-block A8 is connected to the mobile seat A10 for longitudinal sliding, the mobile seat A10 is connected to the fixed plate A12 for transverse sliding via the guide rail A11, and the fixed plate A12 is connected to the mounting base 1 via the support component A17; the transverse measurement component includes a V-block B13, the V-block B13 is connected to the mobile seat B14 for transverse sliding, the mobile seat B14 is connected to the fixed plate B15 for longitudinal sliding via the guide rail B16, and the fixed plate B15 is connected to the mounting base 1 via the support component B18; the sliding directions of the V-blocks A and B are vertical.

[0024] The aforementioned positioning seat 4 is provided with a positioning pin 3 for angular positioning.

[0025] Baffles 9 are provided on both sides of the aforementioned V-shaped blocks A and B to prevent them from falling out.

[0026] The aforementioned V-blocks A and B are both engraved with lines.

[0027] The aforementioned moving seats A and B are engraved with scale marks. The moving seats A and B are also marked with scale marks. Use a standard steel ruler to inlay on the moving seats A and B. Note that the integer value coincides with the scale marks on the V-blocks A and B for direct reading.

[0028] The coincidence error between the position of the engraved lines on the aforementioned V-block and the theoretical center position of the measured outer circle formed by the V-block does not exceed 0.01 mm.

[0029] choose Figure 2The outer circle with higher precision in the product is used as the reference origin. Due to the irregular shape of the product, after the product is positioned, the clamping mechanism A2 with a nylon press head and the clamping mechanism B7 are used to clamp the product positioning part. To ensure accurate measurement results, the pin hole on the product is selected to insert the positioning pin 3 for angular positioning; due to the large height difference of the parts on the right side, the support components A and B are used to rigidly support the fixed plates A and B accordingly.

[0030] Due to the uncertainty of the measuring position in the product, the V-blocks A and B can slide correspondingly on the moving seats A and B to determine the theoretical center of the measured outer circle. At the same time, baffles 9 are made on both sides of the V-block to prevent it from falling out.

[0031] The detection device can realize the key position detection of the external connection port at the assembly site, shorten the metering cycle, and reduce adverse factors such as bumps and scratches caused by metering and transportation.

[0032] The use of the detection device includes the following steps:

[0033] Place the cleaned product and the product positioning reference axis in the positioning seat 4 according to the process reference. Note that the positioning pin 3 on the right side of the positioning seat 4 must also be placed at the same time to ensure that the positioning reference origin does not move; after the product is loaded, use the clamping mechanisms A and B to clamp the positioning part.

[0034] After the positioning origin is determined, the movable base B14 slides toward the outer circle to be measured while simultaneously moving the V-block B13. The actual value of the measured dimension along the X-axis (transverse direction) is read based on the alignment of the scale lines on the V-block B13 with the scale on the movable base B14. The actual value along the Y-axis (longitudinal direction) is read using the same method. This utility model utilizes conventional mechanical structures and, without the need for measuring instruments, enables precise dimensional detection of the product's external connection port locations.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the field can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present invention, and these modifications or replacements should all be included in the protection scope of the present invention.

Claims

1. A product external dimension detection device, characterized in that: The invention comprises a mounting base (1), wherein one side of the mounting base (1) is provided with a positioning mechanism for positioning a reference origin of a measurement coordinate, and the other side is provided with a moving measuring mechanism; the positioning mechanism comprises a positioning seat (4) fixed on the mounting base (1), and the two sides of the positioning seat (4) are respectively provided with a clamping mechanism A (2) and a clamping mechanism B (7); the moving measuring mechanism comprises a transverse measuring component and a longitudinal measuring component; the longitudinal measuring component comprises a V-shaped block A (8), the V-shaped block A (8) is connected to a moving seat A (10) in a longitudinal sliding manner, and the moving seat A (10) is connected to the fixed plate A (12) in a transverse sliding manner via the guide rail A (11), and the fixed plate A (12) is connected to the mounting base (1) via the support component A (17); the transverse measuring assembly includes a V-block B (13), the V-block B (13) is connected to the movable seat B (14) in a transverse sliding manner, the movable seat B (14) is connected to the fixed plate B (15) in a longitudinal sliding manner via the guide rail B (16), and the fixed plate B (15) is connected to the mounting base (1) via the support component B (18); the sliding directions of the V-blocks A and B are perpendicular.

2. The product external dimension detection device according to claim 1, characterized in that: A positioning pin (3) for angular positioning is provided on the positioning seat (4).

3. The product external dimension detection device according to claim 1, characterized in that: Baffles (9) are provided on both sides of the V-shaped blocks A and B to prevent them from falling out.

4. The product external dimension detection device according to claim 1, characterized in that: There are engraved lines on both V-blocks A and B.

5. The product external dimension detection device according to claim 4, characterized in that: There are engraved lines on both the moving seats A and B.

6. The product external dimension detection device according to claim 4, characterized in that: The coincidence error between the position of the scale line on the V-block and the theoretical center position of the measured outer circle formed by the V-block shall not exceed 0.01mm.

Images