Automobile large-size part thickness detection device

Abstract

This utility model discloses a thickness detection device for large automotive parts, including a first support and a second support arranged in parallel. A first sliding seat is slidably mounted on the first support, and a first crossbeam is mounted on the first sliding seat, perpendicular to the first support. A second sliding seat is slidably mounted on the second support, and a second crossbeam is mounted on the second sliding seat, perpendicular to the second support. A first longitudinal slide rail is axially mounted on the side of the first crossbeam, and a thickness gauge is slidably mounted on the first longitudinal slide rail. The thickness gauge includes a main body, a measuring head, and a display screen. The display screen is located above the main body, and the measuring head is located at the front end of the main body. A support member is provided at the end of the second crossbeam facing the thickness gauge. This solution can measure automotive parts of various large sizes.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts measurement technology, specifically relating to a thickness detection device for large automotive parts. Background Technology

[0002] With the development of lightweight and integrated design in automobiles, more and more automotive parts are being manufactured using plastic injection molding processes, such as pillar trim, consoles, door trim panels, bumper covers, and crash pads. Plastic parts in different locations typically have different thicknesses in their structural design to meet the requirements of product rigidity, flowability, and appearance quality.

[0003] In the injection molding design of automotive plastic parts, the thickness of the part directly affects its strength, rigidity, and flow characteristics during the injection molding process. For example, to improve resin flowability or prevent defects such as surface depressions and weld lines, designers often adjust the thickness structure in local areas. Taking automotive bumper covers as an example, the thickness at the flow end area is usually appropriately increased to improve the filling effect and reduce the clamping force of the injection molding machine. Therefore, in the development of automotive plastic parts, it is necessary to detect and verify the actual thickness distribution of the product to determine whether it meets the design thickness or to assess problems such as structural deformation and collapse caused by localized thickness reduction. Especially for large, complex curved interior and exterior trim parts, internal thickness information is an important basis for judging product quality and molding accuracy.

[0004] However, traditional thickness measurement methods mainly rely on micrometers or vernier calipers. These contact measuring tools are only suitable for measuring the thickness of small parts or the edges of parts. They cannot effectively measure the thickness of larger or more complex automotive plastic parts. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a thickness detection device for large automotive parts, comprising a first support and a second support arranged in parallel. A first sliding seat is slidably mounted on the first support, and a first crossbeam is mounted on the first sliding seat. The first crossbeam is perpendicular to the first support. A second sliding seat is slidably mounted on the second support, and a second crossbeam is mounted on the second sliding seat. The second crossbeam is perpendicular to the second support. A first longitudinal slide rail is axially mounted on the side of the first crossbeam, and a thickness gauge is slidably mounted on the first longitudinal slide rail. The thickness gauge includes a main body, a measuring head, and a display screen. The display screen is located above the main body, and the measuring head is located at the front end of the main body. A support member is provided at the end of the second crossbeam facing the thickness gauge.

[0006] Preferably, the first support is provided with a first connecting beam at its end, the second support is provided with a second connecting beam at its end, the first connecting beam is provided with a second longitudinal slide rail, the second connecting beam is slidably connected to the first connecting beam, and the surface of the second connecting beam is also provided with a first locking bolt.

[0007] Preferably, both the first longitudinal slide rail and the second longitudinal slide rail have a T-shaped cross-section.

[0008] Preferably, the second sliding seat has third longitudinal slide rails on both sides above it, the bottom of the second crossbeam is slidably connected to the second sliding seat, the second sliding seat has a locking groove between the two third longitudinal slide rails, the second connecting beam has several locking holes, and the locking holes are connected to second locking bolts.

[0009] Preferably, both the first and second supports have graduations on their sides.

[0010] Preferably, the support member is a boss structure with an arc-shaped cross-section, and the surface of the support member is provided with anti-slip texture.

[0011] The advantages of this utility model are: 1. This solution is composed of a parallel support, a sliding crossbeam, a longitudinal slide rail, and a digital thickness gauge, which can flexibly adapt to the measurement needs of automotive parts of different sizes, and is especially suitable for thickness detection of large automotive parts.

[0012] 2. This solution uses a C-shaped frame in conjunction with longitudinal T-shaped slide rails and support components to ensure that the thickness gauge moves smoothly along the slide rails and that the parts are placed stably on the support components, reducing the impact of shaking or tilting on measurement accuracy and thus ensuring reliable measurement data.

[0013] 3. This solution, through sliding seats, longitudinal slide rails, locking bolts, and scale markings, allows for flexible adjustment of the positions of the support and crossbeam according to the size of the parts, enabling rapid adaptation to parts of different specifications. Attached Figure Description

[0014] Figure 1 This is a structural diagram of the present utility model.

[0015] Figure 2 This is a diagram showing the zeroing state of the thickness gauge of this utility model.

[0016] Figure 3 This is the first state diagram for measuring the thickness of the part according to this utility model.

[0017] Figure 4 This is the second state diagram for measuring the thickness of the part according to this utility model.

[0018] Figure 5This is a structural diagram showing the connection between the second sliding seat and the second crossbeam of this utility model.

[0019] In the diagram: 1 First support, 2 Second support, 3 First sliding seat, 4 First crossbeam, 5 Second sliding seat, 6 Second crossbeam, 7 First longitudinal slide rail, 8 Main body, 9 Measuring head, 10 Display screen, 11 Support component, 12 First connecting beam, 13 Second connecting beam, 14 Second longitudinal slide rail, 15 First locking bolt, 16 Third longitudinal slide rail, 17 Locking groove, 18 Locking hole, 19 Second locking bolt, 20 Scale. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Simultaneously, when an component is referred to as "fixed to" or "equipped on" another component, it can be directly on the other component or may have an intervening component present. When an component is referred to as "connected to" another component, it can be directly connected to the other component or may have an intervening component present. When an component is referred to as "fixedly connected to" another component, it can be a common fixed connection method such as welding, bolting, or gluing. In short, those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Example 1, such as Figure 1As shown, a thickness detection device for large automotive parts is used to measure the thickness of large parts such as interior and exterior trim, bumpers, dashboards, and door panels. It includes two parallel supports, a first support 1 and a second support 2. A first sliding seat 3 is slidably mounted on the first support 1. The first sliding seat 3 has a generally square shape and fits completely onto the first support 1, cooperating with a slide rail on the first support 1 to achieve smooth sliding along the direction of the first support 1. To fix the position of the first sliding seat 3, at least one insertion hole is provided on the side of the first sliding seat 3. A bolt is inserted into the hole, and by tightening the bolt, the bolt passes through the insertion hole and abuts against the side of the first support 1, achieving a tight fit between the first sliding seat 3 and the first support 1, fixing the first sliding seat 3 to the first support 1 and preventing accidental movement in a non-sliding state. A second sliding seat 5 is slidably mounted on the second support 2. The structure and connection method of the second support 2 and the second sliding seat 5 are the same as those of the first sliding seat 3 and the first support 1, and will not be described again in this embodiment. The slide rails on the first support 1 and the second support 2 are both T-shaped structures. The bottom of the first sliding seat 3 and the second sliding seat 5 are both equipped with T-shaped grooves to ensure that the two sliding seats will not flip sideways.

[0024] A first crossbeam 4 is fixedly mounted on the first sliding seat 3, and the first crossbeam 4 is arranged perpendicularly to the first support 1. A second crossbeam 6 is fixedly mounted on the second sliding seat 5, and the second crossbeam 6 is also arranged perpendicularly to the second support 2. A first longitudinal slide rail 7 is provided on the side axial direction of the first crossbeam 4, along which a thickness gauge can be slidably mounted. The thickness gauge includes a main body 8, a measuring head 9, and a display screen 10. The display screen 10 is located above the main body 8 for easy reading of thickness values ​​by the operator, while the measuring head 9 is located at the front end of the main body 8 for contacting the surface of the part to be measured. The main body 8 contains a grating ruler and a photoelectric displacement sensor. The movement of the measuring head 9 will cause the grating slider to move relative to the photoelectric sensor. The photoelectric sensor detects the change in light signal stripes generated when the grating lines move, and the control circuit converts the number of stripes into the corresponding displacement distance. The thickness gauge is a well-known technology in the art. The thickness gauge adopts an existing general-purpose digital thickness gauge, such as the commercially available Hitachi F160 model, the specific structure of which will not be described in this embodiment.

[0025] The second crossbeam 6 has a support member 11 at one end near the thickness gauge, which supports the other end of the part to be measured, ensuring the stability of the part during the measurement process and preventing measurement errors caused by the part shaking or tilting. The support member 11 has an arc-shaped boss structure in its cross section and anti-slip texture on its surface, further improving the stability of the part placement.

[0026] A first connecting beam 12 is vertically installed at the end of the first support 1, forming an L-shaped structure with the first support 1. Similarly, a second connecting beam 13 is vertically installed at the end of the second support 2, also forming an L-shaped structure with the second support 2. The first support 1, the first connecting beam 12, the second support 2, and the second connecting beam 13 are combined to form a C-shaped structure. This design ensures that the spatial span of the device is large enough to accommodate the measurement of various large parts, and also provides good overall rigidity, making the measurement process more stable and reliable.

[0027] A second longitudinal slide rail 14 is provided on the first connecting beam 12. The second connecting beam 13 is slidably connected to the first connecting beam 12, and a first locking bolt 15 is provided on the surface of the second connecting beam 13. The first connecting beam 12 can be provided with corresponding holes and slots to cooperate with the first locking bolt 15, for locking the beam position after adjustment. The cross-section of the first longitudinal slide rail 14 and the second longitudinal slide rail 14 are also T-shaped, which facilitates the precise linear movement of the thickness gauge and other sliding units on the slide rails, while ensuring good guidance and stability during longitudinal sliding. When the first locking bolt 15 is tightened, it is staggered from the second longitudinal slide rail 14, so the two do not affect each other.

[0028] Third longitudinal slide rails 16 are provided on both sides above the second sliding seat 5. The bottom of the second connecting beam 13 is connected to the second sliding seat 5 through a sliding fit. This allows the position of the second connecting beam 13 to be adjusted. The second sliding seat 5 is provided with a locking groove 17 between the two third longitudinal slide rails 16. The second connecting beam 13 is provided with several locking holes 18. The second locking bolt 19 cooperates with the locking groove 17 to achieve stable fixation of the second connecting beam 13 in the longitudinal direction, ensuring that the entire structure will not be displaced during measurement. The sides of the first support 1 and the second support 2 are provided with scales 20, which facilitates quick and intuitive reading of the position and precise adjustment when measuring or adjusting the device.

[0029] During use, first adjust the distance between the first support 1 and the second support 2 according to the part size. Then, adjust the position of the second connecting beam 13 along the second longitudinal slide rail 14 to ensure it contacts the part or maintains an appropriate distance, and finally fix it with the second locking bolt 19. After adjustment, align the first crossbeam 4 and the second crossbeam 6. Figure 2 As shown, the thickness gauge slides along the first longitudinal slide rail 7 to the designated position, the measuring head 9 abuts against the surface of the support member 11 and is pressed back a certain distance. At this time, zero-point calibration is performed, and the value on the display screen is set to zero. Then... Figure 3As shown, the part to be measured is placed between the first crossbeam 4 and the second crossbeam 6, with its bottom surface supported by the support member 11. Then, the thickness gauge moves along the first longitudinal slide rail 7 to the position corresponding to the zeroing setting. The measuring head 9 contacts the surface of the part and is pressed back a certain distance towards the body 8. The thickness measured by the thickness gauge = the difference in the distance the measuring head 9 is pressed back (the distance pressed back during measurement - the zero-point pressing back distance). The thickness information can be obtained through the display screen 10. Figure 4 As shown, the measuring head 9 sequentially contacts different positions on the workpiece surface. Each time it contacts, the photoelectric displacement sensor inside the main body automatically detects the displacement change of the measuring head 9. The photoelectric sensor and grating slider inside the thickness gauge can accurately sense the distance the measuring head 9 is pressed back, and the display screen 10 instantly displays the thickness value. Through this series of operations, the thickness distribution data of large parts in different locations can be obtained quickly and accurately.

[0030] The thickness detection device for large automotive parts provided in this embodiment is composed of a parallel support, a sliding crossbeam, a longitudinal slide rail, and a digital thickness gauge, forming a C-shaped overall structure. This ensures the rigidity and stability of the device while flexibly adapting to the measurement needs of parts of different sizes.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A thickness detection device for large automotive parts, characterized in that: The device includes a first support (1) and a second support (2) arranged in parallel. A first sliding seat (3) is slidably provided on the first support (1). A first crossbeam (4) is provided on the first sliding seat (3). The first crossbeam (4) is perpendicular to the first support (1). A second sliding seat (5) is slidably provided on the second support (2). A second crossbeam (6) is provided on the second sliding seat (5). The second crossbeam (6) is perpendicular to the second support (2). A first longitudinal slide rail (7) is provided on the side axial direction of the first crossbeam (4). A thickness gauge is slidably provided on the first longitudinal slide rail (7). The thickness gauge includes a main body (8), a measuring head (9), and a display screen (10). The display screen (10) is located above the main body (8). The measuring head (9) is located at the front end of the main body (8). A support member (11) is provided at the end of the second crossbeam (6) facing the thickness gauge.

2. The thickness detection device for large-size automotive parts according to claim 1, characterized in that: The first support (1) has a first connecting beam (12) vertically at its end, and the second support (2) has a second connecting beam (13) vertically at its end. The first connecting beam (12) has a second longitudinal slide rail (14) on it. The second connecting beam (13) is slidably connected to the first connecting beam (12). The surface of the second connecting beam (13) is also provided with a first locking bolt (15).

3. The apparatus for detecting the thickness of a large-sized automobile part according to claim 2, characterized by: Both the first longitudinal slide rail (7) and the second longitudinal slide rail (14) have T-shaped cross sections.

4. The apparatus for detecting the thickness of a large-sized automobile part according to claim 3, characterized by: The second sliding seat (5) is provided with third longitudinal slide rails (16) on both sides above it. The bottom of the second crossbeam (6) is slidably connected to the second sliding seat (5). The second sliding seat (5) is provided with a locking groove (17) between the two third longitudinal slide rails (16). The second connecting beam (13) is provided with several locking holes (18). The locking holes (18) are connected with second locking bolts (19).

5. The thickness detection device for large-size automotive parts according to claim 4, characterized in that: The first support (1) and the second support (2) are both provided with scales (20) on their sides.

6. The thickness detection device for large-size automotive parts according to claim 5, characterized in that: The support member (11) is a boss structure with an arc-shaped cross section, and the surface of the support member (11) is provided with anti-slip texture.

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