Special gauge for size of photovoltaic frame aluminum profile

Abstract

A photovoltaic frame aluminum profile dimension special-purpose detection tool comprises an angle upper limit detection port and an angle lower limit detection port which are respectively arranged at the vertexes of included angle parts between the two side edges of a convex plate part and the bottom edge of a comprehensive detection plate part; the notch depth upper and lower limit measuring scale is convexly formed at the top end of the convex plate part; the BD surface wall thickness upper and lower limit detection opening, the C surface wall thickness upper and lower limit detection opening and the notch bottom wall thickness upper and lower limit detection opening are formed in the peripheral side of the comprehensive detection plate part through a long-strip-shaped wedge-shaped notch; the B-surface appearance upper and lower limit detection opening and the A-surface appearance upper and lower limit detection opening are formed in the peripheral side of the comprehensive detection plate part, and the notch detection tool part and the cavity detection tool part are connected to the comprehensive detection plate part. The shape and the size of the cross section of the detection part of the cavity detection tool part correspond to those of the vertical cavity of the profile to form a conical head. Therefore, the photovoltaic frame aluminum profile dimension special-purpose detection tool can be easily combined, and whether the critical dimension of the profile is in a tolerance range can be rapidly detected.

Description

Technical Field

[0001] The utility model relates to the measurement technology of aluminum alloy extrusion processing, in particular to a special measuring tool for the dimensions of photovoltaic frame aluminum profiles. Background Art

[0002] In the field of aluminum alloy extrusion processing, the dimensions of aluminum profiles are a particularly important control point. Traditionally speaking, for all metals including aluminum profiles, the thicker the thickness, the better the quality. This idea is correct, but it cannot be used as a necessary condition for selection. Because the thicker the wall thickness, the greater the weight per meter of aluminum alloy, the more aluminum consumption, and the higher the price. It is also necessary to select a suitable profile specification according to specific load-bearing requirements. The photovoltaic frame aluminum profile bears relatively less stress compared to other industrial materials, so there is no need for an overly thick wall thickness. Usually, the wall thickness is between 0.9 mm and 1.8 mm, which can improve the extrusion production efficiency, save raw materials, reduce energy consumption and costs, and play a role in reducing costs and increasing efficiency. For this reason, the tolerance range of the dimensions of photovoltaic frame aluminum profiles with a small wall thickness is required to be more strict than that of those with a large wall thickness, usually between 0 mm and 0.25 mm. The extrusion forming is easily affected by the wall thickness deviation of the die core and the tail shrinkage of the extruder, and the wall thickness change is relatively large. In the face of this situation, it is particularly important to detect whether the dimensions of photovoltaic frame aluminum profiles are qualified.

[0003] At present, the supply volume of photovoltaic frame aluminum profiles in the market is large, and the daily output of the manufacturing department is relatively large. It is difficult to use traditional vernier calipers, micrometers and angle gauges to comprehensively detect the dimensions of each photovoltaic frame aluminum profile. Moreover, the cross-section scanner is expensive and difficult to be used in actual production. Content of the Utility Model

[0004] To solve the above problems, the purpose of the utility model is to provide a special measuring tool for the dimensions of photovoltaic frame aluminum profiles, which can quickly detect whether the dimensions of photovoltaic frame aluminum profiles are within the tolerance range, and can greatly improve the work efficiency while ensuring the product quality.

[0005] According to the present utility model, there is provided a special inspection tool for the dimensions of a photovoltaic frame aluminum profile. The photovoltaic frame aluminum profile is integrally configured in the shape of a Chinese character "qiu", and respectively includes: a surface A forming the outer top edge of the "qiu", a surface B of the outer side edge, a surface C of the bottom side edge, a surface D of the inner side edge, a notch located on the side of the outer top edge of the "qiu" and a cavity A where the notch is located, and a vertical cavity forming a cavity surrounded by the four sides of the "qiu". The characteristics are that the inspection tool includes: a comprehensive inspection plate part and a convex plate part vertically extending from one side of the bottom edge of the comprehensive inspection plate part. Around the peripheries of the comprehensive inspection plate part and the convex plate part, the following respective inspection parts are formed: an upper limit inspection opening and a lower limit inspection opening respectively arranged at the vertices of the included angle parts between the two side edges of the convex plate part and the bottom edge of the comprehensive inspection plate part. The two are respectively recessed at the vertices of the included angle parts on both sides to form hollow parts, allowing the corner part of the BC angle of the profile to extend in. Among them, the included angle between the side edge of the convex plate part corresponding to the upper limit inspection opening and the bottom edge of the comprehensive inspection plate part corresponds to detecting the upper limit of the BC angle, and the included angle between the side edge of the convex plate part corresponding to the lower limit inspection opening and the bottom edge of the comprehensive inspection plate part corresponds to detecting the lower limit of the BC angle; an upper and lower limit inspection ruler for the notch depth protruding from the top end of the convex plate part, which is used to insert into the notch to detect the notch depth of the cavity A. The top end surfaces of the convex plate part located on both sides of the upper and lower limit inspection ruler for the notch depth are respectively an upper limit surface and a lower limit surface, and their distances from the top end surface of the upper and lower limit inspection ruler for the notch depth are different, respectively corresponding to the upper limit and the lower limit of the notch depth of the cavity A; a BD surface wall thickness upper and lower limit inspection opening, a C surface wall thickness upper and lower limit inspection opening, and a notch bottom wall thickness upper and lower limit inspection opening formed in a long strip-shaped wedge-shaped notch on the peripheral side of the comprehensive inspection plate part for detecting the B surface and the D surface with the same thickness specification, a C surface wall thickness upper and lower limit inspection opening for detecting the C surface, and a notch bottom wall thickness upper and lower limit inspection opening for detecting the bottom of the notch. The width of each notch is formed such that the front end corresponds to the upper limit of the thickness specification, and the rear end corresponds to the lower limit of the thickness specification; a B surface outer shape upper and lower limit inspection opening for detecting the length of the B surface and an A surface outer shape upper and lower limit inspection opening for detecting the length of the A surface formed on the peripheral side of the comprehensive inspection plate part. Among them, each inspection opening is formed such that the front end is the upper limit of the corresponding length dimension, and the rear end is the lower limit of the corresponding length dimension.

[0006] Preferably, the BD surface wall thickness upper and lower limit inspection opening, the C surface wall thickness upper and lower limit inspection opening, and the notch bottom wall thickness upper and lower limit inspection opening are arranged side by side on the peripheral side of the comprehensive inspection plate part, and the B surface outer shape upper and lower limit inspection opening and the A surface outer shape upper and lower limit inspection opening are arranged side by side on the peripheral side of the comprehensive inspection plate part.

[0007] Preferably, the BD surface wall thickness upper and lower limit inspection opening, the C surface wall thickness upper and lower limit inspection opening, and the notch bottom wall thickness upper and lower limit inspection opening are arranged side by side on the short side of the comprehensive inspection plate part, and the B surface outer shape upper and lower limit inspection opening and the A surface outer shape upper and lower limit inspection opening are arranged side by side on the other peripheral side of the comprehensive inspection plate part opposite to the bottom edge.

[0008] Preferably, the special gauge for the dimensions of the photovoltaic frame aluminum profile further includes: a notch gauge part and a cavity gauge part. Among them, the notch gauge part is used to detect whether the size of the notch is qualified. At one end side of the notch gauge part, upper and lower limit inspection rods for the notch are formed. The front end of the upper and lower limit inspection rods for the notch corresponds to the lower limit of the notch size, and the rear end corresponds to the upper limit of the notch size. At the other end side of the notch gauge part, a connecting thread is formed; the cavity gauge part includes a detection part and a base part. The cross-sectional shape and size of the detection part correspond to the vertical cavity to form a conical head. The front end and the rear end of the conical head correspond to the lower limit and the upper limit of the corresponding size of the vertical cavity respectively. A connecting screw hole is provided on the bottom side of the base part; on the comprehensive inspection plate part, a connection port for the notch gauge and the cavity gauge is formed for the connecting thread at the bottom of the notch gauge part to pass through, and the connecting thread is threadedly connected to the connecting screw hole of the cavity gauge part.

[0009] Preferably, the notch gauge and the cavity gauge are formed into a stepped groove hole structure with a through hole, and the base part of the cavity gauge part is fitted into the stepped groove.

[0010] Preferably, the notch gauge and the cavity gauge are formed into a through hole structure, and a flange part for abutting against the comprehensive inspection plate part is formed between the upper and lower limit inspection rods for the notch and the connecting thread of the notch gauge part.

[0011] The beneficial effects of the present utility model: It can help quality inspection personnel quickly detect whether the key dimensions of the photovoltaic frame aluminum profile are within the tolerance range. Description of the Drawings

[0012] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings.

[0013] Figure 1 Schematic diagram of the main body part of the special gauge for the dimensions of the photovoltaic frame aluminum profile according to the embodiment of the present utility model.

[0014] Figure 2 Schematic diagram of the notch gauge part for installation on the main body part.

[0015] Figure 3 Schematic diagram of the cavity gauge part for installation on the main body part.

[0016] Figure 4 Schematic diagram showing the detection working condition of the upper and lower limits of the angle.

[0017] Figure 5 Schematic diagram showing the detection working condition of the upper and lower limits of the notch depth.

[0018] Figure 6 Schematic cross-sectional view showing the photovoltaic frame aluminum profile.

[0019] Figure 7Schematically shows the detection working condition diagram of the C surface.

[0020] Figure 8 Schematically shows the detection working condition diagram of the B surface. Detailed implementation manners

[0021] The exemplary embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. The exemplary embodiments described below and shown in the drawings are intended to teach the principles of the present utility model so that those skilled in the art can implement and use the present utility model in several different environments and for several different applications. Therefore, the protection scope of the present utility model is defined by the appended claims, and the exemplary embodiments are not intended to, and should not be considered as, a restrictive description of the protection scope of the present utility model. Moreover, for the sake of convenience of description, the sizes of the various parts shown in the drawings are not necessarily drawn according to the actual proportional relationship. Regarding the orientation description, such as the orientation or positional relationship indicated by inner, outer, upper, lower, left, right, top, bottom, etc., all are based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model. Throughout the drawings, the same elements are represented by the same or similar reference numerals. When it may cause confusion in understanding the present disclosure or is not easy to observe and understand, the conventional structure or local structure will be omitted. Unless otherwise specifically stated, the order of the components and the assembly steps and the numerical values set forth in the embodiments do not limit the scope of the present utility model.

[0022] As Figure 6 Shows a schematic cross-sectional view of a photovoltaic frame aluminum profile, where the range where the A surface is located is indicated by reference numeral 1 (for the convenience of description, hereinafter, the "A surface 1" is used to correspond to the A surface, and other parts are also correspondingly represented), the range where the B surface is located is indicated by reference numeral 2, the range where the C surface is located is indicated by reference numeral 3, the range where the D surface is located is indicated by reference numeral 4, the range where the transverse cavity is located (between the inner ribs 9 described later) is indicated by reference numeral 5, the range where the notch is located is indicated by reference numeral 6, the range where the A cavity is located is indicated by reference numeral 7, the range where the vertical cavity is located is indicated by reference numeral 8, the inner ribs are indicated by reference numeral 9, the range where the C cavity is located is indicated by reference numeral 40, the range inside the C surface is indicated by reference numeral 41, the AB angle is indicated by reference numeral 42, the BC angle formed by the B surface 2 and the C surface 3 is indicated by reference numeral 43, and the T-shaped position is indicated by reference numeral 44.

[0023] In other words, the aluminum profile of the photovoltaic frame is integrally formed in the shape of the Chinese character "qiu", which respectively includes: surface A 1 constituting the outer top edge of the "qiu" character, surface B 2 of the outer side, surface C 3 of the bottom side, surface D 4 of the inner side, notch 6 on the side of the outer top edge of the "qiu" character, and cavity A 7 where the notch 6 is located, and vertical cavity 8 constituting the cavity surrounded by the four sides of the "qiu" character (which also corresponds to horizontal cavity 5, but since the two actually belong to the same cavity, it is simply referred to as vertical cavity 8 here).

[0024] In order to detect the aluminum profile of the photovoltaic frame, a special measuring tool for the dimensions of the aluminum profile of the photovoltaic frame according to an exemplary embodiment of the present invention (hereinafter also simply referred to as the measuring tool) is made of Cr12MoV material, and its hardness is much higher than that of aluminum alloy, so as to avoid mutual friction and collision with the photovoltaic frame during use and affect the accuracy.

[0025] The main body part of the measuring tool includes a comprehensive inspection plate part 10 and a convex plate part 23 vertically extending from one side of its bottom edge 24, and is generally in a T shape. Around the periphery of the comprehensive inspection plate part 10 and the convex plate part 23, the following Figure 1 shown inspection parts are respectively formed, and are described in detail below.

[0026] The upper and lower limit inspection opening 11 for the wall thickness of surfaces B and D is used to detect surfaces B 2 and D 4 with the same thickness specification, and is formed as a long strip-shaped wedge-shaped notch opening on one end face ( Figure 1 the upper end face in ) of the comprehensive inspection plate part 10. The front end (i.e., the opening end) of this notch is the upper limit of the dimension of the thickness specification, and the rear end is the lower limit of the dimension of the thickness specification. In this way, when detecting surface B 2 (similarly when detecting surface D 4), when the front end of the upper and lower limit inspection opening 11 for the wall thickness of surfaces B and D of the measuring tool can correspond to surface B 2 and be inserted into the profile and the gap between the inner wall of the notch and surface B is ≥0, it proves that the profile size is smaller than the specified upper limit. During the continuous probing process, if the profile gets stuck in the middle of the measuring tool and cannot enter and reach the rear end, it proves that the profile size is larger than the specified lower limit, then the size is qualified. On the contrary, if it reaches the rear end and the gap between the inner wall of the notch and surface B is >0, it is unqualified. However, when it reaches the rear end and the gap between the inner wall of the notch and surface B is =0, that is, they are in close contact, it is still regarded as qualified.

[0027] The upper and lower limit inspection opening 12 for the wall thickness of surface C, similarly, is used to detect the wall thickness of surface C 3, and is formed as a long strip-shaped wedge-shaped notch opening on one end face ( Figure 1 the upper end face in ) of the comprehensive inspection plate part 10.

[0028] The upper and lower limit inspection opening 13 for the wall thickness at the bottom of the notch, similarly, is used to detect the wall thickness at the bottom of notch 6, and is formed as a long strip-shaped wedge-shaped notch opening on one end face ( Figure 1 the upper end face in ) of the comprehensive inspection plate part 10.

[0029] Here, preferably, the upper and lower limit inspection ports 11 for the wall thickness of the BD surface, the upper and lower limit inspection ports 12 for the wall thickness of the C surface, and the upper and lower limit inspection ports 13 for the wall thickness at the bottom of the notch are arranged side by side on the peripheral side of the comprehensive inspection plate part 10, for example, on the short side, so that the corresponding wall thickness can be conveniently detected in sequence. The front end is the upper limit of the dimension. When the front end can be inserted into the profile and the gap between them is ≥0, it proves that the profile dimension is less than the specified upper limit. If the profile gets stuck at the rear end of the measuring tool and cannot enter during further probing, it proves that the profile dimension is greater than the specified lower limit, and then the dimension is qualified; otherwise, it is unqualified.

[0030] The upper and lower limit inspection port 14 for the outer shape of the B surface is used to detect the length of the B surface 2 (corresponding to Figure 6 the dimension line numbered 3 in the middle, and the other lengths are marked in the same way and will not be elaborated). Since the length and tolerance zone of the C surface 3 are the same as those of the B surface 2, therefore, the upper and lower limit inspection port 14 for the outer shape of the B surface can also be used to detect the length of the C surface 3, as shown in Figure 7 、 8 Similarly, the upper and lower limit inspection port 15 for the outer shape of the A surface is used to detect the length of the A surface 1. Similarly, the front end of each inspection port is the upper limit of the dimension. When the front end can be inserted into the profile and the gap between them is ≥0, it proves that the profile dimension is less than the specified upper limit. During the process of further probing, if the profile gets stuck at the rear end of the measuring tool and cannot enter, it proves that the profile dimension is greater than the specified lower limit, and then the dimension is qualified; otherwise, it is unqualified.

[0031] Preferably, the upper and lower limit inspection port 14 for the outer shape of the B surface and the upper and lower limit inspection port 15 for the outer shape of the A surface are arranged side by side on the peripheral side of the comprehensive inspection plate part 10, for example, on the other side opposite to the bottom edge 24.

[0032] The standard for the included angle between the B and C surfaces of the general profile is 90°±0.5, the upper limit of the angle is 90.5°, and the lower limit of the angle is 89.5°. In order to detect the upper limit and lower limit of the angle, an upper limit inspection port 16 and a lower limit inspection port 19 are provided at the vertex of the included angle part between the two side edges of the convex plate part 23 and the bottom edge 24 of the comprehensive inspection plate part 10 respectively, and are recessed at the vertex of the two side included angle parts to form a hollow part, allowing the corner part of the BC angle of the profile to extend in.

[0033] Upper limit inspection port 16: As shown in Figure 4 , when the B surface 2 of the profile is attached to one side edge of the convex plate part 23, if there is still a gap or complete attachment between the C surface 3 and the bottom edge 24 of the comprehensive inspection plate part 10, the upper limit of the angle is qualified.

[0034] Lower limit inspection port 19: As shown in Figure 4 , when the B surface 2 of the profile is attached to the other side edge of the convex plate part 23, if there is a gap or complete attachment between the C surface 3 of the profile near the included angle of the B surface 2 and the C surface 3 and the bottom edge 24 of the comprehensive inspection plate part 10, the lower limit of the angle is qualified.

[0035] The upper and lower limit gauge 17 for the notch depth is formed protruding at the top of the convex plate part 23, as shown inFigure 5 As shown, it is used to insert into the notch 6 to detect whether the notch depth of the cavity A 7 is qualified. The top surfaces of the convex plate parts 23 on both sides of the notch depth upper and lower limit gauge 17 are respectively the upper limit surface 34 and the lower limit surface 25, and their distances from the top surface of the notch depth upper and lower limit gauge 17 are different, which are respectively the upper limit and the lower limit of the notch depth of the cavity A 7. Press the upper limit surface 34 against the D surface 4, insert the notch depth upper and lower limit gauge 17 into the notch 6. After the upper limit surface 34 fits with the D surface 4, if there is still a gap between the bottom of the notch of the cavity A 7 and the top of the notch depth upper and lower limit gauge 17, then the notch depth of the cavity A 7 exceeds the upper limit. Press the lower limit surface 25 against the D surface 4, insert the notch depth upper and lower limit gauge 17 into the notch 6. If the top surface of the notch depth upper and lower limit gauge 17 has already contacted the bottom of the notch, but there is still a gap between the lower limit surface 25 and the D surface 4, then the notch depth is shorter than the lower limit and is unqualified. The above detection method is also applicable to Figure 4 、 Figure 6 the different examples respectively shown in

[0036] which have rounded corners and flanges respectively at the corner parts between the D surface 4 and the bottom of the notch of the cavity A 7.

[0037] The cavity inspection tool part 30 is a special inspection tool part for detecting whether the size of the aluminum alloy profile cavity, that is, the vertical cavity 8, is qualified. Among them, the detection part 32 and the base part 33 are integrally formed. The cross-sectional shape and size of the detection part 32 correspond to the length and width of the vertical cavity 8, and are formed into a tapered head corresponding to the tolerance zone in the length and width directions. The front end and the rear end of the tapered head respectively correspond to the lower limit and the upper limit of the corresponding size of the vertical cavity 8. When the front end ( Figure 3 the upper side in the above) of the detection part 32 can be inserted into the interior of the profile cavity and the gap between them is ≥0, it proves that the size of the vertical cavity 8 is greater than the specified lower limit. Continuing to probe, if the profile is stuck at the rear end of the measuring tool and cannot enter, it proves that the profile size is less than the specified upper limit, then the size is qualified, otherwise it is unqualified. Although the size of the vertical cavity 8 involves two dimensions of length and width here, as long as one dimension size is unqualified, it will be stuck. The connecting screw hole 31 part opened on the bottom surface side of the base part 33 is responsible for connecting the cavity inspection tool part 30 with the other two components, as described later.

[0038] The connection port 18 between the notch gauge and the cavity gauge is formed on the integrated inspection plate part 10, and the integrated inspection plate part 10, the notch gauge part 20, and the cavity gauge part 30 can be connected together by threads. Specifically, the connection thread 22 at the bottom of the notch gauge part 20 passes through the connection port 18 between the notch gauge and the cavity gauge of the integrated inspection plate part 10, and then the connection thread 22 is rotated and screwed into the connection screw hole 31 of the cavity gauge part 30 to complete the connection of the three components in the way of using the integrated inspection plate part 10 as a gasket. Among them, the connection port 18 between the notch gauge and the cavity gauge is formed into a stepped groove hole structure with a through hole, and the base part 33 of the cavity gauge part 30 is fitted into the stepped groove. Such a design can separately disassemble the worn part when a certain component is partially worn, and the rest is retained, reducing the replacement cost. Of course, the connection port 18 between the notch gauge and the cavity gauge can also be only formed into a through hole structure and the stepped groove structure can be omitted, and it can be appropriately selected according to the thickness of the integrated inspection plate part 10 and the structure of the notch gauge part 20. For example, a flange part for abutting against the integrated inspection plate part 10 can be formed between the upper and lower limit inspection rods 21 of the notch of the notch gauge part 20 and the connection thread 22.

[0039] In this way, the upper and lower limits of the wall thickness of the B surface 2 and the D surface 4, the upper and lower limits of the wall thickness of the C surface 3, the upper and lower limits of the bottom wall thickness of the notch 6, the upper and lower limits of the outer shape of the B surface 2 and the C surface 3, the upper and lower limits of the outer shape of the A surface 1, the upper and lower limits of the angle of the BC angle 43, and the upper and lower limits of the depth of the notch 6 can be measured. One measuring tool can measure whether most of the outer shape and wall thickness dimensions of the aluminum profile of the photovoltaic frame are qualified, reducing the switching time of using calipers, micrometers and angle gauges, greatly accelerating the measuring speed, and at the same time, reducing the misjudgment phenomenon caused by manual measurement with traditional measuring tools.

[0040] In the description of the present application, the meaning of "a plurality" is two or more than two, unless otherwise specifically defined. Unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations. Although the present invention has been described with reference to various specific embodiments, it should be understood that modifications can be made within the spirit and scope of the described inventive concept. Therefore, it is intended that the present invention is not limited to the described embodiments, but will have the full scope defined by the language of the appended claims.

Claims

1. A special inspection tool for the dimensions of photovoltaic frame aluminum profiles. The overall structure of the photovoltaic frame aluminum profile is in the shape of a "qiu" character, and it respectively includes: The A surface (1) that constitutes the outer top edge of the character "Qiu", the B surface (2) of the outer side, the C surface (3) of the bottom side, the D surface (4) of the inner side, the notch (6) located on the outer top edge side of the character "Qiu" and the A cavity (7) where the notch (6) is located, and the vertical cavity (8) that constitutes the cavity surrounded by the four sides of the character "Qiu". It is characterized in that the inspection fixture includes: a comprehensive inspection plate part (10) and a convex plate part (23) vertically extending from one side of the bottom edge (24) of the comprehensive inspection plate part (10). Around the peripheries of the comprehensive inspection plate part (10) and the convex plate part (23), the following respective inspection parts are formed: The angle upper limit inspection port (16) and the angle lower limit inspection port (19) respectively arranged at the vertices of the included angle parts between the two side edges of the convex plate part (23) and the bottom edge (24) of the comprehensive inspection plate part (10). The two are respectively recessed at the vertices of the included angle parts on both sides to form concave parts, allowing the BC corner of the profile to extend in. Among them, the included angle between the side edge of the convex plate part (23) corresponding to the angle upper limit inspection port (16) and the bottom edge (24) of the comprehensive inspection plate part (10) corresponds to detecting the upper limit of the BC angle, and the included angle between the side edge of the convex plate part (23) corresponding to the angle lower limit inspection port (19) and the bottom edge (24) of the comprehensive inspection plate part (10) corresponds to detecting the lower limit of the BC angle; The notch depth upper and lower limit inspection ruler (17) protruding from the top end of the convex plate part (23), which is used to insert into the notch (6) to detect the notch depth of the A cavity (7). The top end surfaces of the convex plate part (23) on both sides of the notch depth upper and lower limit inspection ruler (17) are respectively the upper limit surface (34) and the lower limit surface (25), and their distances from the top end surface of the notch depth upper and lower limit inspection ruler (17) are different, corresponding to the upper limit and the lower limit of the notch depth of the A cavity (7) respectively; The BD surface wall thickness upper and lower limit inspection port (11) for detecting the B surface (2) and the D surface (4) with the same thickness specification, the C surface wall thickness upper and lower limit inspection port (12) for detecting the C surface (3), and the notch bottom wall thickness upper and lower limit inspection port (13) for detecting the bottom of the notch (6), which are formed as long strip-shaped wedge-shaped notches on the peripheral side of the comprehensive inspection plate part (10). The width of each notch is formed as the dimension upper limit corresponding to the thickness specification at the front end and the dimension lower limit corresponding to the thickness specification at the rear end; The B surface outer shape upper and lower limit inspection port (14) for detecting the length of the B surface (2) and the A surface outer shape upper and lower limit inspection port (15) for detecting the length of the A surface (1) formed on the peripheral side of the comprehensive inspection plate part (10). Among them, each inspection port is formed with the front end as the corresponding length dimension upper limit and the rear end as the corresponding length dimension lower limit.

2. The special inspection tool for the dimensions of the photovoltaic frame aluminum profile according to claim 1, characterized in that The BD surface wall thickness upper and lower limit inspection port (11), the C surface wall thickness upper and lower limit inspection port (12), and the notch bottom wall thickness upper and lower limit inspection port (13) are arranged side by side on the peripheral side of the comprehensive inspection plate part (10), and the B surface outer shape upper and lower limit inspection port (14) and the A surface outer shape upper and lower limit inspection port (15) are arranged side by side on the peripheral side of the comprehensive inspection plate part (10).

3. The special inspection tool for the dimensions of the photovoltaic frame aluminum profile according to claim 2, wherein, The upper and lower limit inspection ports for the wall thickness of the BD surface (11), the upper and lower limit inspection ports for the wall thickness of the C surface (12), and the upper and lower limit inspection ports for the wall thickness at the bottom of the groove (13) are arranged side by side on the short side of the comprehensive inspection plate part (10). The upper and lower limit inspection ports for the outer shape of the B surface (14) and the upper and lower limit inspection ports for the outer shape of the A surface (15) are arranged side by side on the other peripheral side of the comprehensive inspection plate part (10) opposite to the bottom edge (24).

4. The special inspection tool for the dimensions of the photovoltaic frame aluminum profile according to claim 1, characterized in that, It further includes: A groove inspection tool part (20) and a cavity inspection tool part (30). Among them, the groove inspection tool part (20) is used to detect whether the size of the groove (6) is qualified. A groove upper and lower limit inspection rod (21) is formed on one end side of the groove inspection tool part (20). The front end of the groove upper and lower limit inspection rod (21) corresponds to the lower limit of the size of the groove (6), and the rear end corresponds to the upper limit of the size of the groove (6). A connecting thread (22) is formed on the other end side of the groove inspection tool part (20). The cavity inspection tool part (30) includes a detection part (32) and a base part (33). The cross-sectional shape and size of the detection part (32) are formed as a conical head corresponding to the vertical cavity (8). The front end and the rear end of the conical head respectively correspond to the lower limit and the upper limit of the corresponding size of the vertical cavity (8). A connecting screw hole (31) is provided on the bottom surface side of the base part (33). A groove inspection tool and cavity inspection tool connection port (18) is formed on the comprehensive inspection plate part (10) for the connecting thread (22) at the bottom of the groove inspection tool part (20) to pass through, and the connecting thread (22) is threadedly connected to the connecting screw hole (31) of the cavity inspection tool part (30).

5. The special inspection tool for the size of the photovoltaic frame aluminum profile according to claim 4, characterized in that, The groove inspection tool and the cavity inspection tool are formed as a stepped groove hole structure with a through hole, and the base part (33) of the cavity inspection tool part (30) is fitted into the stepped groove.

6. The special inspection tool for the dimensions of the photovoltaic frame aluminum profile according to claim 4, characterized in that, The groove inspection tool and the cavity inspection tool are formed as a through hole structure, and a flange part for abutting against the comprehensive inspection plate part (10) is formed between the groove upper and lower limit inspection rod (21) and the connecting thread (22) of the groove inspection tool part (20).

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