Stamping part with two-dimensional code

Abstract

The embodiment of the utility model provides a stamping part with a two-dimensional code. The stamping part comprises a base plate; the substrate is provided with a first surface and a second surface which are opposite in the thickness direction; a preset laser etching area is arranged on the first surface of the substrate; a layer of black paint is coated in the laser etching area, and the laser etching area is used for accommodating a two-dimensional code; a plurality of clamping hooks; the plurality of clamping hooks are arranged on the substrate, and at least one part of each clamping hook protrudes out of the second surface; a mounting member; and the mounting parts are arranged on the peripheral edge of the substrate. The laser etching area of the substrate is internally coated with a layer of black paint, so that the influence of light reflection on the grade of the laser two-dimensional code can be effectively reduced, the grade of the laser two-dimensional code is improved, and a scanning gun can further quickly identify the two-dimensional code; although the stamping part has the process cost of coating the black paint, the black paint can be coated on the material belt for manufacturing the stamping part before stamping, so that the process cost is also relatively low actually.

Description

Technical Field

[0001] The utility model relates to the technical field of laser engraving two-dimensional codes, in particular to a stamping part with a two-dimensional code. Background Art

[0002] QR codes are widely used as information identification labels in various fields. Generally speaking, QR codes can be laser engraved on the surface of metal products (such as stampings, sheet metal parts, or other metal components). When users (such as workers on the production line or quality management personnel) use a scanner to read the QR code, they can quickly obtain relevant information about the metal product (such as production information, batch number information, or process parameters), greatly reducing the time and error rate of manual recording and further improving production efficiency.

[0003] Moreover, engraving the QR code on the surface of the metal product can also facilitate users to trace the production (the relevant information stored in the QR code can form a complete production traceability system); when the metal product has a problem, the user can quickly obtain relevant information by scanning the QR code, quickly locate the source of the problem and make corresponding improvements.

[0004] Specifically, QR codes can be divided into grades based on quality, readability and stability. Among them, the grades of QR codes can be divided into five grades: A, B, C, D and E. The quality, readability and stability of the above five grades gradually decrease from A to E, and by grade C, they are difficult to be recognized by scanners.

[0005] In the existing technology, since the surface of metal products is usually silver, it will produce a certain amount of reflection, resulting in the QR code laser engraved on the surface of the metal product being only grade C, further causing the QR code to be difficult to be recognized by a scanner due to its low grade. Utility Model Content

[0006] The utility model provides a stamping part with a QR code, which aims to solve the defect that the grade of the laser QR code is low due to the reflection generated on the surface of the stamping part during the process of laser engraving the QR code on the surface of the stamping part.

[0007] The utility model provides a stamping part with a QR code. The stamping part with a QR code includes:

[0008] The substrate has a first surface and a second surface opposite to each other in the thickness direction;

[0009] A preset laser engraving area is provided on the first surface of the substrate; a layer of black paint is coated in the laser engraving area, and the laser engraving area is used to accommodate a QR code;

[0010] a plurality of hooks; the plurality of hooks are all disposed on the substrate, and at least a portion of the hooks protrudes from the second surface;

[0011] The mounting components are arranged on the four edges of the substrate.

[0012] In some embodiments, the hook comprises:

[0013] A punching hole passes through the first surface and the second surface; the punching hole is formed by two planes and two arc surfaces;

[0014] a straight portion; one end of the straight portion is connected to one of the planes of the punching hole, and the other end extends toward the direction close to the other plane of the punching hole;

[0015] An elastic arm and a buckle portion; one end of the elastic arm is connected to the straight portion, and the other end is connected to the buckle portion.

[0016] In some embodiments, the straight portion is in a straight line shape, the elastic arm is in an arc shape, and the buckle portion is in a straight line shape;

[0017] The elastic arm has a first arc surface and a second arc surface; the first arc surface has a first radius, the second arc surface has a second radius, and the first radius is smaller than the second radius;

[0018] The first curved surface and the second surface are located on the same side, and the second curved surface and the first surface are located on the same side;

[0019] One end of the buckle portion away from the elastic arm extends along the first direction toward a direction away from the second surface;

[0020] The first direction is a direction from the first surface toward the second surface.

[0021] In some embodiments, the mounting component includes:

[0022] a pair of transverse mounting bases and a pair of longitudinal mounting bases;

[0023] A pair of the transverse mounting bases are symmetrically arranged on two side edges of the substrate that are away from each other in the length direction, and a pair of the longitudinal mounting bases are symmetrically arranged on two side edges of the substrate that are away from each other in the width direction;

[0024] The length direction, the width direction and the thickness direction are orthogonal to each other.

[0025] In some embodiments, the lateral mounting base comprises:

[0026] a first bending portion, a first supporting portion, a second bending portion, and a first mounting portion;

[0027] One end of the first bending portion is connected to the edge of the substrate, and the other end is connected to one end of the first supporting portion;

[0028] The other end of the first supporting portion is connected to one end of the second bending portion, and the other end of the second bending portion is connected to the first mounting portion.

[0029] In some embodiments, the first bending portion is in an arc shape, and the first bending portion has a third arc surface and a fourth arc surface;

[0030] The third arc surface has a third radius, the fourth arc surface has a fourth radius, and the third radius is smaller than the fourth radius;

[0031] One end of the third curved surface close to the substrate is connected to the second surface, and one end of the fourth curved surface close to the substrate is connected to the first surface.

[0032] In some embodiments, the second bending portion is in an arc shape, and the second bending portion has a fifth arc surface and a sixth arc surface;

[0033] The fifth arc surface has a fifth radius, the sixth arc surface has a sixth radius, and the fifth radius is smaller than the sixth radius;

[0034] The fifth arc surface and the fourth arc surface are located on the same side, and the sixth arc surface and the third arc surface are located on the same side.

[0035] In some embodiments, the first support portion is in a straight line shape, and one end of the first support portion away from the first bending portion extends along a first direction away from the second surface;

[0036] One end of the first mounting portion away from the first supporting portion extends along the length direction in a direction away from the substrate;

[0037] The first direction is a direction from the first surface toward the second surface.

[0038] In some embodiments, the longitudinal mounting base comprises:

[0039] a third bending portion, a second supporting portion, and a pair of second mounting portions;

[0040] One end of the third bending portion is connected to the edge of the substrate, and the other end is connected to the middle position of the second supporting portion;

[0041] The pair of second mounting portions are respectively disposed at two ends of the second support portion that are away from each other in the width direction, and both of the pair of second mounting portions protrude from the surface of the second support portion.

[0042] In some embodiments, the third bending portion is in an arc shape, and the third bending portion has a seventh arc surface and an eighth arc surface;

[0043] The seventh arc surface has a seventh radius, the eighth arc surface has an eighth radius, and the seventh radius is smaller than the eighth radius;

[0044] One end of the seventh curved surface close to the substrate is connected to the first surface, and one end of the eighth curved surface close to the substrate is connected to the second surface;

[0045] One end of the second supporting portion away from the third bending portion extends along a second direction away from the first surface, and the second direction is a direction from the second surface toward the first surface.

[0046] At least one beneficial effect of the stamped part with a QR code provided by the embodiment of the present invention is: a new type of stamped part with a QR code is proposed, by presetting a laser engraving area on the substrate, applying a layer of black paint in the laser engraving area, and then laser engraving the QR code on the surface of the black paint; therefore, the black paint can effectively reduce the impact of reflection on the grade of the laser QR code, thereby improving the grade of the laser QR code, further enabling the scanner to quickly identify the QR code. Moreover, although the stamped part has the process cost of coating with black paint, the black paint can be applied to the material strip used to make the stamped part before stamping, so the above-mentioned process cost is actually relatively low. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] One or more embodiments are exemplarily illustrated by corresponding drawings, which do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as the same elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0048] Figure 1 A schematic diagram of the structure of a stamping part provided in an embodiment of the present utility model (I);

[0049] Figure 2 Structural schematic diagram of the stamping part provided in the embodiment of the utility model (II);

[0050] Figure 3 A schematic diagram of the partial structure of a traditional stamping part with a QR code;

[0051] Figure 4A schematic diagram of a portion of the structure of a hook of a stamping part provided in an embodiment of the present utility model;

[0052] Figure 5 A schematic diagram of a portion of the structure of a horizontal mounting base of a stamping part provided in an embodiment of the present utility model;

[0053] Figure 6 A schematic diagram of a partial structure of a longitudinal mounting base of a stamping part provided in an embodiment of the present invention.

[0054] Reference numerals:

[0055] 100. Stamping part; 1. Base plate; 101. Thickness direction; 102. Length direction; 103. Width direction; 1011. First surface; 1012. Second surface; 1013. Laser engraving area; 1014. Black paint; 2. Hook; 21. Punched hole; 22. Straight portion; 23. Elastic arm; 24. Snap portion; 231. First curved surface; 232. Second curved surface; 3. Mounting component; 31. Horizontal mounting Mounting base; 32, longitudinal mounting base; 311, first bending portion; 312, first supporting portion; 313, second bending portion; 314, first mounting portion; 321, third bending portion; 322, second supporting portion; 323, second mounting portion; 3111, third curved surface; 3112, fourth curved surface; 3131, fifth curved surface; 3132, sixth curved surface; 3211, seventh curved surface; 3212, eighth curved surface;

[0056] 200, traditional stamping part with QR code; 2001, base plate; 2002, mounting bracket; 2003, convex hull;

[0057] 300. QR code. DETAILED DESCRIPTION

[0058] The present invention is described in detail below with reference to specific embodiments. It should be emphasized that the following description is merely illustrative and is not intended to limit the scope and application of the present invention.

[0059] It should be noted that, unless otherwise clearly specified and limited, the terms "mutually diverging", "relative", "first direction", "second direction", "length direction", "width direction", "thickness direction", etc. used in this specification to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention. The terms "install", "fit", "connect", "fix" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection or a detachable 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; "fixation" can be a bolt fixation, a snap fixation, or a glue fixation; the terms "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features; thus, the features specified as "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" may explicitly or implicitly include one or more of the features; "multiple" or "several" means two or more; in addition, "and / or" includes any and all combinations of one or more related listed items; for ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0060] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0061] In this embodiment, the specific implementation of the "stamping part with a QR code" is not limited, and those skilled in the art can selectively use any appropriate implementation method according to actual needs.

[0062] Figure 1 Schematic diagram of the structure of the stamping part provided in the embodiment of the present utility model (1). Figure 2 Schematic diagram of the structure of the stamping part provided in the embodiment of the utility model (II). Figure 3 A schematic diagram of the partial structure of a traditional stamping part with a QR code.

[0063] See also Figure 1-Figure 3 The stamping part 100 with the QR code 300 includes: a substrate 1, a plurality of hooks 2, and a mounting component 3.

[0064] The substrate 1 has a first surface 1011 and a second surface 1012 opposite to each other in the thickness direction 101 .

[0065] In addition, a preset laser engraving area 1013 is provided on the first surface 1011 of the substrate 1 , and the laser engraving area 1013 is used to accommodate the two-dimensional code 300 .

[0066] In addition, a layer of black paint 1014 is coated in the laser engraving area 1013, and the above-mentioned QR code 300 can be laser engraved on the surface of the black paint 1014 by a laser engraving device; in this way, the black paint can reduce the impact of the reflection on the surface of the substrate 1 on the QR code level, thereby improving the level of the laser QR code 300 and further improving the speed of the scanner to recognize the QR code 300.

[0067] It should be noted that the plurality of hooks 2 are all disposed on the substrate 1 , and at least a portion of the hooks 2 protrudes from the second surface 1012 .

[0068] It can be understood that the mounting components 3 are arranged on four edges of the substrate 1 .

[0069] In the embodiment of the present application, the black paint 1014 can be applied to the material strip for making the stamped part 100 before stamping, so the process cost of applying the black paint is actually relatively low.

[0070] A traditional stamped part 200 with a QR code has a base plate 2001 and a mounting bracket 2002, and the QR code 300 is directly engraved on the surface of the above-mentioned base plate 2001 through a laser engraving device; wherein, a pair of long strip-shaped convex bumps 2003 are provided on the above-mentioned base plate 2001, and the convex bumps 2003 bulge from the surface of the base plate 2001 on which the QR code 300 is engraved along the thickness direction of the base plate 2001.

[0071] Generally speaking, metal parts made of metal materials (for example, the above-mentioned stamping part 100 and the traditional stamping part 200 with a QR code) have a silver surface, so they will produce a certain amount of reflection, which will cause the QR code 300 to be reduced in grade due to reflection during the process of laser engraving on the surface of the metal part, and may even be only grade C.

[0072] Specifically, QR codes can be divided into grades based on quality, readability and stability. Among them, the grades of QR codes can be divided into five grades: A, B, C, D and E. The quality, readability and stability of the above five grades gradually decrease from A to E, and by grade C, they are difficult to be recognized by scanners.

[0073] It is further explained that Grade A QR codes have high-quality printing effects, clear patterns, and high color contrast, and meet the various quality parameter requirements of international standards such as ISO / IEC (International Organization for Standardization / International Electrotechnical Commission). In addition, Grade A QR codes have very high readability and stability, and can be scanned and identified quickly and accurately under various conditions (for example, different lighting, different angles, and different distances). Therefore, Grade A QR codes are suitable for scenarios with extremely high requirements for scanning stability (for example, financial payments and important document recognition).

[0074] To explain further, the quality of Grade B QR codes is slightly lower than that of Grade A QR codes, and may be slightly insufficient in some quality parameters (for example, slight blur or color unevenness), but overall still maintains a good printing effect; generally speaking, Grade B QR codes can be scanned smoothly in most cases, but may encounter challenges under certain extreme conditions (for example, extremely weak light or extreme angles); therefore, Grade B QR codes are suitable for scenarios that require higher scanning stability (for example, product barcodes and logistics tracking).

[0075] It goes on to explain that Grade C QR codes are of lower quality and may not meet standard requirements in multiple quality parameters. The patterns may also have obvious flaws (e.g., blurriness, low color contrast, and partial information loss). Generally speaking, Grade C QR codes are difficult to be recognized by scanners.

[0076] Finally, it should be noted that the quality of Grade D QR codes is significantly lower, failing to meet the standard requirements for most or all quality parameters, and the patterns may be very blurry, with extremely low color contrast, or even unrecognizable; while the quality of Grade E QR codes will be very poor and almost unrecognizable, and their patterns may be completely blurred or damaged, unable to provide any valid information; therefore, Grade D and Grade E QR codes are generally not recommended for use.

[0077] Figure 4 A schematic diagram of the partial structure of the hook of the stamping part provided in an embodiment of the present utility model.

[0078] In some embodiments, as Figure 1 、 Figure 2 and Figure 4 As shown, the hook 2 includes a punching hole 21 , a straight portion 22 , an elastic arm 23 and a buckle portion 24 .

[0079] The punching hole 21 passes through the first surface 1011 and the second surface 1012 , and the punching hole 21 is formed by two planes and two arc surfaces.

[0080] In addition, one end of the straight portion 22 is connected to one plane of the punching hole 21 , and the other end thereof extends toward the other plane of the punching hole 21 .

[0081] In addition, one end of the elastic arm 23 is connected to the straight portion 22 , and the other end is connected to the buckle portion 24 .

[0082] In some embodiments, combined Figure 1 、 Figure 2 and Figure 4 It can be seen that the straight portion 22 is in a straight line shape, the elastic arm 23 is in an arc shape, and the buckle portion 24 is in a straight line shape.

[0083] In the embodiment of the present application, the elastic arm 23 has a first arc surface 231 and a second arc surface 232 ; the first arc surface 231 has a first radius, the second arc surface 232 has a second radius, and the first radius is smaller than the second radius.

[0084] Specifically, the first arc surface 231 and the second surface 1012 are located on the same side, and the second arc surface 232 and the first surface 1011 are located on the same side.

[0085] It should be noted that the end of the locking portion 24 away from the elastic arm 23 extends along the first direction away from the second surface 1012 .

[0086] It can be understood that the first direction is a direction from the first surface 1011 to the second surface 1012 .

[0087] In some embodiments, reference Figure 1 and Figure 2 It can be seen that the mounting component 3 includes a pair of transverse mounting bases 31 and a pair of longitudinal mounting bases 32 .

[0088] The pair of transverse mounting bases 31 are symmetrically arranged on the two side edges of the substrate 1 in the length direction 102 and away from each other, and the pair of longitudinal mounting bases 32 are symmetrically arranged on the two side edges of the substrate 1 in the width direction 103 and away from each other.

[0089] Furthermore, the longitudinal direction 102 , the width direction 103 , and the thickness direction 101 are orthogonal to each other.

[0090] Figure 5 A schematic diagram of a portion of the structure of a horizontal mounting base of a stamping part provided in an embodiment of the present invention.

[0091] In some embodiments, according to Figure 1 、 Figure 2 and Figure 5 It can be seen that the transverse mounting base 31 includes a first bending portion 311 , a first supporting portion 312 , a second bending portion 313 and a first mounting portion 314 .

[0092] It can be understood that one end of the first bending portion 311 is connected to the edge of the substrate 1 , and the other end is connected to one end of the first supporting portion 312 .

[0093] It should be noted that the other end of the first supporting portion 312 is connected to one end of the second bending portion 313 , and the other end of the second bending portion 313 is connected to the first mounting portion 314 .

[0094] In some embodiments, Figure 1 、 Figure 2 and Figure 5 It can be seen that the first bending portion 311 is in an arc shape, and the first bending portion 311 has a third arc surface 3111 and a fourth arc surface 3112 .

[0095] Specifically, the third arc surface 3111 has a third radius, the fourth arc surface 3112 has a fourth radius, and the third radius is smaller than the fourth radius;

[0096] To further explain, one end of the third curved surface 3111 close to the substrate 1 is connected to the second surface 1012 , and one end of the fourth curved surface 3112 close to the substrate 1 is connected to the first surface 1011 .

[0097] In some embodiments, please refer to Figure 1 、 Figure 2 and Figure 5 The second bending portion 313 is in an arc shape, and the second bending portion 313 has a fifth arc surface 3131 and a sixth arc surface 3132 .

[0098] The fifth arc surface 3131 has a fifth radius, the sixth arc surface 3132 has a sixth radius, and the fifth radius is smaller than the sixth radius.

[0099] In addition, the fifth arc surface 3131 and the fourth arc surface 3112 are located on the same side, and the sixth arc surface 3132 and the third arc surface 3111 are located on the same side.

[0100] In some embodiments, please refer to Figure 1 、 Figure 2 and Figure 5 The first supporting portion 312 is in a straight line shape, and one end of the first supporting portion 312 away from the first bending portion 311 extends along the first direction toward a direction away from the second surface 1012 .

[0101] In the embodiment of the present application, one end of the first mounting portion 314 away from the first supporting portion 312 extends along the length direction 102 in a direction away from the substrate 1 .

[0102] Specifically, the first direction is a direction from the first surface 1011 to the second surface 1012 .

[0103] Figure 6 A schematic diagram of a partial structure of a longitudinal mounting base of a stamping part provided in an embodiment of the present invention.

[0104] In some embodiments, combined Figure 1 、 Figure 2 and Figure 6 It can be seen that the longitudinal mounting base 32 includes a third bending portion 321 , a second supporting portion 322 and a pair of second mounting portions 323 .

[0105] It should be noted that one end of the third bending portion 321 is connected to the edge of the substrate 1 , and the other end is connected to the middle position of the second supporting portion 322 .

[0106] It is understandable that the pair of second mounting portions 323 are respectively disposed at two ends of the second support portion 322 that are away from each other in the width direction 103 , and both of the pair of second mounting portions 323 protrude from the surface of the second support portion 322 .

[0107] In some embodiments, as Figure 1 、 Figure 2 and Figure 6 As shown, the third bending portion 321 is in an arc shape, and has a seventh arc surface 3211 and an eighth arc surface 3212 .

[0108] The seventh arc surface 3211 has a seventh radius, the eighth arc surface 3212 has an eighth radius, and the seventh radius is smaller than the eighth radius.

[0109] In addition, one end of the seventh curved surface 3211 close to the substrate 1 is connected to the first surface 1011 , and one end of the eighth curved surface 3212 close to the substrate 1 is connected to the second surface 1012 .

[0110] Furthermore, one end of the second supporting portion 322 away from the third bending portion 321 extends along a second direction away from the first surface 1011 , and the second direction is a direction from the second surface 1012 toward the first surface 1011 .

[0111] In summary, the stamping part with a QR code provided by the embodiment of the present invention is achieved by presetting a laser engraving area on the substrate, applying a layer of black paint in the laser engraving area, and then laser engraving the QR code on the surface of the black paint; therefore, the black paint can effectively reduce the impact of reflection on the level of the laser QR code, thereby improving the level of the laser QR code, and further enabling the scanner to quickly identify the QR code. Moreover, although the stamping part has the process cost of coating with black paint, the black paint can be coated on the material strip for making the stamping part before stamping, so the above-mentioned process cost is actually relatively low. Therefore, the stamping part with a QR code provided by the embodiment of the present invention has a certain novelty compared to the traditional stamping part with a QR code.

[0112] The above content is a further detailed description of the present invention in conjunction with specific / preferred embodiments, and the specific implementation of the present invention cannot be limited to these descriptions. Those skilled in the art will appreciate that various modifications and improvements can be made without departing from the concept of the present invention, and all of these modifications and improvements fall within the scope of protection of the present invention.

Claims

1. A stamping part with a QR code, characterized in that: include: substrate; The substrate has a first surface and a second surface opposite to each other in the thickness direction; A preset laser engraving area is provided on the first surface of the substrate; a layer of black paint is coated in the laser engraving area, and the laser engraving area is used to accommodate a QR code; Several hooks; A plurality of the hooks are arranged on the substrate, and at least a portion of the hooks protrudes from the second surface; The mounting components are arranged on the four edges of the substrate.

2. The stamping part according to claim 1, characterized in that The hook comprises: A punching hole passes through the first surface and the second surface; the punching hole is formed by two planes and two arc surfaces; a straight portion; one end of the straight portion is connected to one of the planes of the punching hole, and the other end extends toward the direction close to the other plane of the punching hole; An elastic arm and a buckle portion; one end of the elastic arm is connected to the straight portion, and the other end is connected to the buckle portion.

3. The stamping part according to claim 2, characterized in that The straight portion is in a straight line shape, the elastic arm is in an arc shape, and the buckle portion is in a straight line shape; The elastic arm has a first arc surface and a second arc surface; the first arc surface has a first radius, the second arc surface has a second radius, and the first radius is smaller than the second radius; The first curved surface and the second surface are located on the same side, and the second curved surface and the first surface are located on the same side; One end of the buckle portion away from the elastic arm extends along the first direction toward a direction away from the second surface; The first direction is a direction from the first surface toward the second surface.

4. The stamping part according to claim 1, characterized in that The installation component includes: a pair of transverse mounting bases and a pair of longitudinal mounting bases; A pair of the transverse mounting bases are symmetrically arranged on two side edges of the substrate that are away from each other in the length direction, and a pair of the longitudinal mounting bases are symmetrically arranged on two side edges of the substrate that are away from each other in the width direction; The length direction, the width direction and the thickness direction are orthogonal to each other.

5. The stamping part according to claim 4, characterized in that The lateral mounting base comprises: a first bending portion, a first supporting portion, a second bending portion, and a first mounting portion; One end of the first bending portion is connected to the edge of the substrate, and the other end is connected to one end of the first supporting portion; The other end of the first supporting portion is connected to one end of the second bending portion, and the other end of the second bending portion is connected to the first mounting portion.

6. The stamping part according to claim 5, characterized in that The first bending portion is in an arc shape, and the first bending portion has a third arc surface and a fourth arc surface; The third arc surface has a third radius, the fourth arc surface has a fourth radius, and the third radius is smaller than the fourth radius; One end of the third curved surface close to the substrate is connected to the second surface, and one end of the fourth curved surface close to the substrate is connected to the first surface.

7. The stamping part according to claim 6, characterized in that The second bending portion is in an arc shape, and the second bending portion has a fifth arc surface and a sixth arc surface; The fifth arc surface has a fifth radius, the sixth arc surface has a sixth radius, and the fifth radius is smaller than the sixth radius; The fifth arc surface and the fourth arc surface are located on the same side, and the sixth arc surface and the third arc surface are located on the same side.

8. The stamping part according to claim 5, characterized in that The first supporting portion is in a straight line shape, and one end of the first supporting portion away from the first bending portion extends along a first direction away from the second surface; One end of the first mounting portion away from the first supporting portion extends along the length direction in a direction away from the substrate; The first direction is a direction from the first surface toward the second surface.

9. The stamping part according to claim 4, characterized in that The longitudinal mounting base comprises: a third bending portion, a second supporting portion, and a pair of second mounting portions; One end of the third bending portion is connected to the edge of the substrate, and the other end is connected to the middle position of the second supporting portion; The pair of second mounting portions are respectively disposed at two ends of the second support portion that are away from each other in the width direction, and both of the pair of second mounting portions protrude from the surface of the second support portion.

10. The stamping part according to claim 9, characterized in that The third bending portion is in an arc shape, and has a seventh arc surface and an eighth arc surface; The seventh arc surface has a seventh radius, the eighth arc surface has an eighth radius, and the seventh radius is smaller than the eighth radius; One end of the seventh curved surface close to the substrate is connected to the first surface, and one end of the eighth curved surface close to the substrate is connected to the second surface; One end of the second supporting portion away from the third bending portion extends along a second direction away from the first surface, and the second direction is a direction from the second surface toward the first surface.

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