Bolt anti-loosening structure, measuring tool and stamping mechanism

Abstract

The utility model relates to the technical field of wind driven generators, and aims to solve the technical problem that no anti-loosening function exists. In order to solve the technical problem, the utility model provides the bolt anti-loosening structure, the measuring tool and the stamping mechanism. The mounting structure comprises an upper part to be mounted; unloading a to-be-mounted part; the bolt comprises a screw and a nut; the upper pressing piece comprises an upper horizontal plate and an upper vertical plate which are arranged in an L shape; an upper through hole is formed in the upper horizontal plate; the lower fastener comprises a first lower horizontal plate, a lower vertical plate and a second lower horizontal plate which are connected in sequence; a lower through hole is formed in the first lower horizontal plate; wherein the screw penetrates through the upper to-be-mounted piece and the lower to-be-mounted piece and is connected with the nut; the upper through hole sleeves the head of the screw, and the upper vertical plate covers the edges of the upper to-be-mounted part and the lower to-be-mounted part; the lower through hole is sleeved on the nut; the lower vertical plate abuts against the outer wall of the upper vertical plate, and the second lower horizontal plate wraps the top of the upper horizontal plate. The bolt is prevented from being loosened.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine equipment technology, and in particular to a bolt anti-loosening structure, a measuring tool, and a stamping mechanism. Background Technology

[0002] Many components of a wind turbine are connected using bolts, such as the connection between the nacelle and the tower. Current bolts lack anti-loosening features, which poses the following risks during long-term use:

[0003] Equipment malfunctions and safety hazards: Loose bolts can weaken the clamping force between connecting parts, potentially leading to increased equipment vibration and noise, or even equipment malfunction. Prolonged loosening can also damage components and, in severe cases, cause safety accidents.

[0004] Performance degradation and reduced efficiency: Loose bolts can affect the overall performance of equipment, leading to decreased work efficiency and increased maintenance costs. For example, loose bolts may cause mechanical parts to move improperly, affecting the normal operation of the equipment.

[0005] Economic losses: Loose bolts not only cause equipment downtime for maintenance, but also increase maintenance costs and downtime losses. In some cases, loose bolts may lead to major accidents, causing even greater economic losses.

[0006] Therefore, it is necessary to design a bolt with anti-loosening function for the installation of wind turbines to prevent equipment failure and safety hazards; avoid performance and efficiency reduction; and avoid economic losses. Utility Model Content

[0007] Therefore, the technical problem to be solved by this utility model is to overcome the above-mentioned problems existing in the prior art.

[0008] To solve the above-mentioned technical problems, this utility model provides a bolt anti-loosening structure, comprising:

[0009] Items to be installed;

[0010] The following components are to be installed;

[0011] Bolts, including screws and nuts;

[0012] The upper pressure component includes an upper horizontal plate and an upper vertical plate arranged in an L-shape; the upper horizontal plate is provided with an upper through hole;

[0013] The lower fastener includes a first lower horizontal plate, a lower vertical plate, and a second lower horizontal plate connected in sequence in a U-shape; the first lower horizontal plate is provided with a lower through hole.

[0014] The screw passes through the upper and lower parts to be installed and is connected to the nut; the upper through hole is fitted onto the head of the screw, and the upper vertical plate covers the edges of the upper and lower parts to be installed; the lower through hole is fitted onto the nut; the lower vertical plate abuts against the outer wall of the upper vertical plate, and the second lower horizontal plate covers the top of the upper horizontal plate.

[0015] In one embodiment of this utility model, the lower fastener and the upper pressure member are prefabricated as L-shaped structures; after the screw passes through the upper and lower parts to be installed and is connected to the nut, the upper through hole is sleeved on the head of the screw, and the lower through hole is sleeved on the nut, and the free end of the lower fastener is bent so that the lower fastener forms a U-shaped structure.

[0016] This utility model also provides a measuring tool for measuring, in any of the above embodiments, the distance L1 from the screw axis to the edge of the upper part to be installed, the distance L2 from the nut axis to the outer wall of the upper vertical plate, the graphic orientation of the upper through hole, and the graphic orientation of the lower through hole; the measuring tool includes:

[0017] The gauge has an L-shaped structure and includes a horizontal section and a vertical section. The horizontal section has an elongated hole extending in the X direction, and the vertical section abuts against the edge of the upper part to be installed or the outer wall of the upper vertical plate.

[0018] The axis measuring component has an internal contour hole that matches the shape of the screw head and the nut; the axis measuring component rotates in the elongated hole and slides along the X direction.

[0019] The base is positioned below the gauge.

[0020] Fastening components are used to secure gauges, axis measuring parts, and bases.

[0021] In one embodiment of the present invention, the axis measuring component includes a main body and an end connected to the top of the main body; the main body is located in an elongated hole, and the end rests on the top of the gauge.

[0022] In one embodiment of the present invention, a plurality of connecting ears are evenly distributed along the circumference of the outer wall of the end; the fastening assembly includes a first fastener; the connecting ears are connected to the gauge through the first fastener.

[0023] In one embodiment of the present invention, the fastening assembly further includes a second fastener for connecting the fixed axis measuring element and the base.

[0024] This utility model also provides a stamping mechanism for processing the upper through hole and lower through hole described in any of the above embodiments after measurement by the measuring tool described in any of the above embodiments; the stamping mechanism includes:

[0025] The upper mold assembly includes an upper fixed block, an upper punch rotatably connected to the bottom of the upper fixed block, and a locking component; the locking component is used to lock and fix the upper fixed block and the upper punch.

[0026] The lower mold assembly includes a lower mold, a limiting component, a locking component, and a clamping component. The lower mold has a connecting hole, and the top of the lower mold has a contour groove communicating with the connecting hole. The limiting component is slidably connected to one side of the lower mold along the X direction and is connected to the lower mold through the locking component. The gauge, the upper pressure component, and the lower fastener are respectively mounted on the upper surface of the lower mold and are respectively connected to the lower mold through the clamping component. The vertical section of the gauge, the upper vertical plate of the upper pressure component, and the lower vertical plate of the lower fastener abut against one side of the limiting component. The base is located in the contour groove, and the axis measuring component is located in the connecting hole.

[0027] In one embodiment of this utility model, the lower mold is further provided with a limiting groove that connects to the top of the contour groove. The limiting groove is used to limit the gauge, the upper pressure piece, and the lower fastener.

[0028] In one embodiment of this utility model, the limiting member is a U-shaped structure; the limiting member includes a limiting side and a connecting side vertically connected to both ends of the limiting side; the limiting side is used to limit the gauge, the upper pressure member, and the lower fastener; the two connecting sides are respectively connected to the lower mold through locking components.

[0029] In one embodiment of this utility model, the vertical section of the gauge, the upper vertical plate of the upper pressure member, and the lower vertical plate of the lower fastener abut against the inner side of the limiting member; the thickness of the vertical section, the upper vertical plate, and the lower vertical plate are equal.

[0030] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0031] The bolt anti-loosening structure, measuring tool, and stamping mechanism described in this utility model allow the upper pressing member and lower fastener to interlock with each other, thereby fixing the screw and nut relatively to the upper and lower parts to be installed. This prevents the bolts from loosening during long-term use, ensuring the stability and reliability of the connection between the upper and lower parts to be installed, reducing the accident rate, and lowering maintenance costs. Attached Figure Description

[0032] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0033] Figure 1 This is a schematic diagram of a bolt anti-loosening structure in a preferred embodiment of the present invention;

[0034] Figure 2 This is a schematic diagram of the structure of a measuring tool in a preferred embodiment of the present invention;

[0035] Figure 3 yes Figure 2 A top view of a measuring tool;

[0036] Figure 4 yes Figure 3 AA section view;

[0037] Figure 5 Is adopted Figure 2 A schematic diagram of a measuring tool (screw) used for measurement.

[0038] Figure 6 Is adopted Figure 2 A schematic diagram of a measuring tool used for measurement (nut);

[0039] Figure 7 This is a schematic diagram of the upper die assembly in a stamping mechanism according to a preferred embodiment of the present invention;

[0040] Figure 8 yes Figure 7 Sectional view at point B;

[0041] Figure 9 This is a schematic diagram of the lower die assembly in a stamping mechanism according to a preferred embodiment of the present invention;

[0042] Figure 10 yes Figure 9 A top view of the lower die assembly in a stamping mechanism;

[0043] Figure 11 yes Figure 10 CC section view;

[0044] Figure 12 This is a schematic diagram showing the measuring tool placed in the lower mold assembly;

[0045] Figure 13 It uses a stamping mechanism to Figure 1 A schematic diagram of punching the upper through hole in the middle and upper pressing parts;

[0046] Figure 14 It uses a stamping mechanism to Figure 1 A schematic diagram of punching the lower through hole of the middle and lower fastener;

[0047] Explanation of reference numerals in the accompanying drawings: 100, mounting component; 110, upper part to be installed; 120, lower part to be installed; 130, edge; 140, bolt; 141, screw; 142, nut;

[0048] 200. Upper pressure piece; 210. Upper horizontal plate; 211. Upper through hole; 220. Upper vertical plate;

[0049] 300. Lower fastener; 310. First lower horizontal plate; 311. Lower through hole; 320. Lower vertical plate; 330. Second lower horizontal plate;

[0050] 400, gauge; 410, horizontal section; 411, elongated hole; 420, vertical section;

[0051] 500, Axis measuring component; 510, Contouring hole; 520, Main body; 530, End; 540, Connecting lug;

[0052] 600, base;

[0053] 700. Fastening assembly; 710. First fastener; 720. Second fastener;

[0054] 800. Upper mold assembly; 810. Upper fixing block; 820. Upper punch; 830. Locking component;

[0055] 900, Lower mold assembly; 910, Lower mold; 911, Connecting hole; 912, Contour groove; 913, Limiting groove; 920, Limiting component; 921, Limiting side; 922, Connecting side; 930, Locking component; 940, Clamping component. Detailed Implementation

[0056] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0057] Reference Figures 1-14 As shown, this utility model embodiment provides a bolt anti-loosening structure, including an installation component 100, an upper pressure member 200, and a lower fastener 300.

[0058] Mounting assembly 100 includes an upper mounting component 110, a lower mounting component 120, and bolts 140. Bolts 140 include screws 141 and nuts 142;

[0059] The upper pressure member 200 includes an upper horizontal plate 210 and an upper vertical plate 220 arranged in an L-shape; the upper horizontal plate 210 is provided with an upper through hole 211;

[0060] The lower fastener 300 includes a first lower horizontal plate 310, a lower vertical plate 320, and a second lower horizontal plate 330 connected in sequence in a U-shape; the first lower horizontal plate 310 is provided with a lower through hole 311.

[0061] Screw 141 passes through the upper part to be installed 110 and the lower part to be installed 120 and is connected to nut 142; upper through hole 211 is fitted on the head of screw 141; upper vertical plate 220 covers the edge 130 of upper part to be installed 110 and lower part to be installed 120; lower through hole 311 is fitted on nut 142; lower vertical plate 320 abuts against the outer wall of upper vertical plate 220, and second lower horizontal plate 330 covers the top of upper horizontal plate 210.

[0062] Specifically, in this embodiment, after the screw 141, the upper part to be installed 110, the lower part to be installed 120, and the nut 142 are installed, the upper pressure member 200 is fitted onto the head of the screw 141, the upper vertical plate 220 of the upper pressure member 200 covers the edges of the upper part to be installed 110 and the lower part to be installed 120, then the lower through hole 311 of the lower fastener 300 is fitted onto the nut 142, the lower vertical plate 320 of the lower fastener 300 covers the outer wall of the upper vertical plate 220, and finally the second lower horizontal plate 330 of the lower fastener 300 covers the top of the upper horizontal plate 210. Therefore, it can be seen that the upper pressing member 200 and the lower fastener 300 in this embodiment can interlock with each other, thereby fixing the screw 141 and nut 142 relatively on the upper part to be installed 110 and the lower part to be installed 120, thus preventing the bolt 140 from loosening during long-term use, thereby ensuring the stability and reliability of the connection between the upper part to be installed 110 and the lower part to be installed 120, reducing the accident rate, and reducing maintenance costs.

[0063] In some embodiments, both the upper clamping member 200 and the lower fastener 300 are straight plate structures. After the screw 141, the upper mounting part 110, the lower mounting part 120, and the nut 142 are connected, the upper clamping member 200 is first placed on the head of the screw 141, and then the construction worker manually bends the other end of the upper clamping member 200 to make it L-shaped. Then the lower fastener 300 is placed on the nut 142, and the construction worker manually bends the other end of the lower fastener 300 on both sides to make it U-shaped. This embodiment requires manual bending on-site, thus allowing for direct bending to form an anti-loosening structure based on the site conditions.

[0064] However, the anti-loosening structure formed by on-site bending in the above embodiments has low construction efficiency and poor consistency, resulting in significant differences in anti-loosening effects. To solve this problem, in this embodiment, both the lower fastener 300 and the upper pressure member 200 are prefabricated as L-shaped structures. After the screw 141 passes through the upper part to be installed 110 and the lower part to be installed 120 and connects with the nut 142, the upper through hole 211 is fitted onto the head of the screw 141. At this time, the upper vertical plate 220 of the pressure member 200 has already covered the edges of the upper part to be installed 110 and the lower part to be installed 120. Then, after the lower through hole 311 is fitted onto the nut 142, the lower vertical plate 320 of the lower fastener 300 covers the outer wall of the upper vertical plate 220. The free end of the upper vertical plate 220 is then bent to cover the top of the upper horizontal plate 210, thereby making the lower fastener 300 form a U-shaped structure. In other words, in this embodiment, the upper pressing component 200 and the lower fastener 300 are manufactured as L-shaped structures directly in the factory, and then the lower fastener 300 is bent into a U-shaped structure on-site. This reduces on-site bending operations and improves efficiency. In addition, during the production process, the consistency of the lower fastener 300 and the upper pressing component 200 can be completely guaranteed, thereby ensuring the consistency of the anti-loosening effect.

[0065] However, in the embodiment where the lower fastener 300 and upper pressure member 200 are prefabricated in an L-shape at the factory, the screw 141 and nut 142 need to be rotated to achieve a fixed connection during the installation process of connecting the screw 141 through the upper mounting member 110, the lower mounting member 120, and the nut 142. However, after installation, the orientation of the hexagonal screw 141 and nut 142 (e.g., the head of the hexagonal screw 141 and the hexagonal nut 142) is uncertain. Therefore, ensuring that the upper vertical plate 220 remains parallel and in contact with the edges 130 of the upper mounting member 110 and the lower mounting member 120 after the upper pressure member 200 is fitted onto the head of the screw 141 is a difficult problem that needs to be solved. Similarly, ensuring that the lower vertical plate 320 remains parallel and in contact with the outer wall of the upper vertical plate 220 after the lower fastener 300 is fitted onto the nut 142 is a difficult problem that needs to be solved.

[0066] To solve this problem, our company, after research, designed a measuring tool and a stamping mechanism. After the screw 141, the upper part to be installed 110, the lower part to be installed 120, and the nut 142 are installed, the following parameters are measured using the measuring tool: the distance L1 from the axis of the screw 141 to the edge 130 of the upper part to be installed 110, the distance L2 from the axis of the nut 142 to the outer wall of the upper vertical plate 220, the graphic orientation of the upper through hole 211, and the graphic orientation of the lower through hole 311. Then, the distances L1 and L2 are transferred to the stamping mechanism, which punches holes while ensuring the dimensions of distances L1 and L2, and ensures that the graphic orientations of the punched holes (upper through hole 211 and lower through hole 311) are consistent with the graphic orientations of the head of the screw 141 and the nut 142, respectively. The specific structure is as follows.

[0067] Reference Figures 1-14 As shown, the measuring tool is used to measure the following parameters: the distance L1 from the axis of screw 141 to the edge of the upper part to be installed 110, the distance L2 from the axis of nut 142 to the outer wall of the upper vertical plate 220, the graphic orientation of the upper through hole 211, and the graphic orientation of the lower through hole 311. The measuring tool includes a gauge 400, an axis measuring component 500, a base 600, and a fastening assembly 700.

[0068] The gauge 400 has an L-shaped structure and includes a horizontal section 410 and a vertical section 420. The horizontal section 410 is provided with an elongated hole 411 extending in the X direction, and the vertical section 420 abuts against the edge 130 of the upper part to be installed 110 and the lower part to be installed 120 (for measuring screws) or the outer wall of the upper vertical plate 220 (for measuring nuts).

[0069] The axis measuring component 500 has an internal contour hole 510 that matches the shape of the head of the screw 141 and the shape of the nut 142 (for example, if the head of the screw 141 and the nut 142 are hexagonal, then the contour hole 510 is hexagonal; or if the head of the screw 141 and the nut 142 are square, then the contour hole 510 is square). The axis measuring component 500 rotates and slides in the elongated hole 411 along the X direction.

[0070] The base 600 is fitted over the axis measuring component 500 and rests against the bottom of the gauge 400. The base 600 and the fastening assembly 700 pre-fix the gauge 400 and the axis measuring component 500, thereby pre-connecting the gauge 400 and the axis measuring component 500 together and avoiding measurement failure or measurement error caused by the separation of the gauge 400 and the axis measuring component 500 during the measurement process.

[0071] Fastening assembly 700 is used to secure gauge 400, axis measuring component 500, and base 600.

[0072] Specifically, in this embodiment, the rotating axis measuring component 500 is fitted onto the head of the screw 141 or the nut 142. Then, the sliding gauge 400 is slid so that the inner wall of the vertical section 420 of the gauge 400 abuts against the edge 130 of the upper and lower parts to be installed 110 or the lower part to be installed 120 or the outer wall of the upper vertical plate 220. Then, the gauge 400 and the axis measuring component 500 are fixed by the fastening assembly 700, thus completing the measurement. When measuring the screw 141, the distance from the inner wall of the vertical section 420 to the axis of the screw 141 is the aforementioned distance L1; when measuring the nut 142, the distance from the inner wall of the vertical section 420 to the axis of the nut 142 is the aforementioned distance L2. By rotating the axis measuring component 500 onto the head of the screw 141 or the nut 142, the graphic orientation of the head of the screw 141 and the nut 142 can be measured. Then, the graphic orientation can be installed and punched. Therefore, this embodiment can measure the graphic orientation of the distance L1, distance L2, the head of the screw 141, and the nut 142, with a simple structure, low cost, and high measurement efficiency.

[0073] Further, the axis measuring element 500 includes a main body 520 and an end portion 530 connected to the top of the main body 520. The main body 520 is connected to the base 600 through an elongated hole 411, and the end portion 530 rests on top of the gauge 400, that is, the gauge 400 is sandwiched between the end portion 530 and the base 600. In some embodiments, the main body 520 and the end portion 530 are coaxial cylinders, and the diameter of the end portion 530 is larger than the diameter of the main body 520. Specifically, this embodiment facilitates the prevention of the axis measuring element 500 and the gauge 400 from disengaging when the gauge 400 is pulled to measure distances L1 and L2, thereby making operation easier and improving measurement efficiency.

[0074] Furthermore, the outer wall of the end 530 is evenly distributed with a plurality of connecting ears 540 (at least three) along the circumference. The fastening assembly 700 includes a first fastener 710; the connecting ears 540 are connected to the gauge 400 through the first fastener 710. In some embodiments, the first fastener 710 is a tightening screw 141. The connecting ear 540 is provided with a threaded hole, and the tightening screw 141 is connected to the threaded hole and abuts against the surface of the gauge 400. Specifically, in this embodiment, the plurality of connecting ears 540 enable the axis measuring component 500 to be fixed to the gauge 400 when the axis measuring component 500 is rotated to any angle.

[0075] Furthermore, the fastening assembly 700 also includes a second fastener 720 for connecting and fixing the axis measuring element 500 and the base 600. In some embodiments, the second fastener 720 is a retaining spring, and the body 520 of the axis measuring element 500 is connected to the base 600 via the retaining spring. Specifically, in this embodiment, the second fastener 720 can further achieve the connection and fixation between the base 600 and the axis measuring element 500, preventing the axis measuring element 500 from moving upwards and affecting the measurement accuracy and efficiency.

[0076] To facilitate the sliding of the gauge 400 and prevent it from disengaging from the axis measuring member 500, a guide member can be provided between the gauge 400 and the axis measuring member 500. In some embodiments, the guide member includes a protrusion and a guide groove. One of the sidewalls of the elongated hole 411 and the outer wall of the body 520 of the axis measuring member 500 has a protrusion, and the other has a guide groove.

[0077] Reference Figures 1-14 As shown, the stamping mechanism processes the upper through hole 211 and lower through hole 311 of the bolt 140 anti-loosening structure after measurement with measuring tools. The stamping mechanism includes an upper die assembly 800 and a lower die assembly 900.

[0078] The upper mold assembly 800 includes an upper fixing block 810, an upper punch 820 rotatably connected to the bottom of the upper fixing block 810, and a locking member 830; the locking member 830 is used to lock and fix the upper fixing block 810 and the upper punch 820. The shape of the upper punch 820 is the same as the head of the screw 141 and the nut 142. In some embodiments, the bottom of the upper fixing block 810 is provided with a connecting shaft, and the upper punch 820 is rotatably connected to the connecting shaft through a bearing. In some embodiments, the locking member 830 is a locking screw 141; the side wall of the upper punch 820 is provided with a threaded hole penetrating its wall, and the locking screw 141 passes through the threaded hole and abuts against the outer wall of the connecting shaft.

[0079] The lower mold assembly 900 includes a lower mold 910, a limiting member 920, a locking member 930, and a clamping member 940. In some embodiments, the locking member 930 and the clamping member 940 are both adjustable quick clamps. The lower mold 910 is provided with a communicating hole 911, and the top of the lower mold 910 is provided with a contoured groove 912 communicating with the communicating hole 911; the limiting member 920 is slidably connected to one side (e.g., the left side) of the lower mold 910 in the X direction, and the limiting member 920 is fixedly connected to the lower mold 910 through the locking member 930. The gauge 400, the upper pressure member 200, and the lower fastener 300 are respectively mounted on the upper surface of the lower mold 910, and are respectively connected to the lower mold 910 through the clamping member 940. The base 600 is located in the contour groove 912, and the axis measuring component 500 is located in the connecting hole 911; the vertical section 420 of the gauge 400, the upper vertical plate 220 of the upper pressure component 200, and the lower vertical plate 320 of the lower fastener 300 abut against one side of the limiting component 920 (e.g., the outer side; or the inner side, in this application, the inner side is taken as an example).

[0080] Specifically, after measurement, the measuring tool is placed on the lower mold assembly 900. The axis measuring component 500 of the measuring tool is placed in the connecting hole 911, and the base 600 is located in the contour groove 912. The horizontal section 410 of the gauge 400 rests on the lower mold 910, and the vertical section 420 is suspended on one side of the lower mold 910. The measuring tool is fixed to the lower mold by the clamping component 940. Then, the sliding limit component 920 is moved so that the limit component 920 abuts against one side of the vertical section 420. Then, the locking component 930 is locked to fix the limit component 920 to the lower mold 910. The upper punch 820 moves down and approaches the axis measuring component 500 of the measuring tool. The operator manually rotates the upper punch 820 so that the upper punch 820 can enter the contour hole 510 of the axis measuring component 500 after it descends. Then, the upper punch 820 is locked and fixed to the upper fixing block 810. Finally, the upper punch 820 is moved up. At this point, the measured distance L1 and the graphic orientation of the upper through hole 211, or the distance L2 and the graphic orientation of the lower through hole 311, have been transferred to the lower mold 910. Then, the measuring tool is removed from the lower mold 910 (keeping the limiting member 920 fixed to the lower mold 910 during removal). The upper pressing member 200 or the lower fastener 300 is placed on the lower mold 910, ensuring that the upper vertical plate 220 of the upper pressing member 200 (or the lower vertical plate 320 of the lower fastener 300) abuts against the limiting member 920. Then, the upper mold assembly 800 is activated to move the upper punch 820 downward to punch the upper through hole 211 (or the lower through hole 311). As can be seen, the structure of this embodiment is simple and compact, and can quickly punch the lower through hole 311 and the upper through hole 211 on site, ensuring that the upper through hole 211 is consistent with the graphic orientation of the screw 141 and the distance L1, and the lower through hole 311 is consistent with the graphic orientation of the nut 142 and the distance L2, thereby ensuring the anti-loosening effect, high punching efficiency and ensuring processing dimensions.

[0081] Furthermore, the vertical section 420 of the gauge 400, the upper vertical plate 220 of the upper pressure member 200, and the lower vertical plate 320 of the lower fastener 300 abut against the inner side of the limiting member 920; the thickness of the vertical section 420, the upper vertical plate 220, and the lower vertical plate 320 are equal.

[0082] Specifically, in this embodiment, the upper vertical plate 220 and the lower vertical plate 320 of the lower fastener 300 are abutted against the inner side of the limiting member 920. In this way, the limiting member 920 abuts against the outer side of the upper vertical plate 220 and the lower vertical plate 320 of the lower fastener 300 to further limit them and prevent the upper vertical plate 220 and the lower vertical plate 320 of the lower fastener 300 from moving along the X direction.

[0083] Furthermore, the lower mold 910 is also provided with a limiting groove 913 connected above the contour groove 912. The limiting groove 913 is used to limit the gauge 400, the upper pressure member 200, or the lower fastener 300. Specifically, in this embodiment, the limiting groove 913 provides initial limiting for the gauge 400, the upper pressure member 200, and the lower fastener 300. Then, based on the initial limiting, the locking member 930 or the clamping member 940 achieves a fixed connection between the gauge 400, the upper pressure member 200, the lower fastener 300, and the lower mold 910, making the operation more convenient and faster.

[0084] Furthermore, the limiting member 920 has a U-shaped structure; the limiting member 920 includes a limiting side 921 and connecting sides 922 vertically connected to both ends of the limiting side 921. The limiting side 921 is used to limit the gauge 400, the upper pressing member 200, and the lower fastener 300; the two connecting sides 922 are respectively connected to the lower mold 910 through locking members 930. Since the limiting side 921 can slide relative to the lower mold 910 in the X direction, and after sliding, it needs to be fixed to the lower mold 910 by the locking members 930. In a conventional structure, the locking members 930 are placed on the upper and lower sides or the left and right sides of the limiting side 921. This would cause interference with the upper and lower stamping or the movement of the limiting side 921. Specifically, on the one hand, the connecting side 922 of this embodiment sets the connection structure between the limiting member 920 and the lower mold 910 on the front and rear sides of the lower mold 910, so that it will not interfere with other movements or components; on the other hand, the connecting side 922 of this application can play a guiding role when the limiting side 921 slides, thereby improving the smoothness and stability of the limiting member 920 when it slides.

[0085] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A bolt lock structure characterized by: The utility model relates to a kind of installation tool, including: Upper to be installed piece; Lower to be installed piece; Bolt, including screw and nut; Upper pressing piece, including upper horizontal plate and upper vertical plate arranged in L type;Upper horizontal plate is equipped with upper through-hole; Lower buckle, including first lower horizontal plate, lower vertical plate and second lower horizontal plate connected as U type structure;First lower horizontal plate is equipped with lower through-hole; Wherein, the screw is connected with the nut by passing through the upper to be installed piece, the lower to be installed piece;The upper through-hole is sleeved on the head of the screw, the upper vertical plate is covered at the edge of the upper to be installed piece and the lower to be installed piece;The lower through-hole is sleeved on the nut;The lower vertical plate is located at the outer wall of the upper vertical plate, and the second lower horizontal plate is covered at the top of the upper horizontal plate.

2. The bolt lock structure according to claim 1, characterized by: The lower buckle and the upper pressing piece are prefabricated as L type structure;After the screw is connected with the nut by passing through the upper to be installed piece, the lower to be installed piece;The upper through-hole is sleeved on the head of the screw, the lower through-hole is sleeved on the nut, the free end of the lower buckle is bent, so that the lower buckle forms U type structure.

3. A measurement tool characterized by: For measuring the distance L1 of the axis of the screw to the edge of the upper to be installed piece, the distance L2 of the axis of the nut to the outer wall of the upper vertical plate, the figure direction of the upper through-hole and the figure direction of the lower through-hole in any one of claims 1-2, the measuring tool comprises: Gauge, for L-shaped structure, the gauge includes horizontal section and vertical section;The horizontal section is equipped with long slot hole extending along X direction, and the vertical section is located at the edge of the upper to be installed piece or the outer wall of the upper vertical plate; Axis measuring piece, internally equipped with profiling hole consistent with the shape of the screw head and the shape of the nut;The axis measuring piece rotates in the long slot hole and slides along the X direction; Base, the base is located below the gauge; Fastening assembly for fixing the gauge, the axis measuring piece and the base.

4. The measurement tool of claim 3, wherein: The axis measuring piece includes main body and end part connected at the top end of the main body;The main body is located in the long slot hole, and the end part is arranged on the top of the gauge.

5. The measurement tool of claim 4, wherein: The outer wall of the end part is uniformly distributed with a plurality of connecting ears in the circumferential direction;The fastening assembly includes first fastener;The connecting ear is connected with the gauge by the first fastener.

6. The measurement tool of claim 3, wherein: The fastening assembly further includes second fastener for connecting and fixing the axis measuring piece and the base.

7. A punch mechanism characterized by: After measuring by the measuring tool in any one of claims 3-6, the upper through-hole and the lower through-hole in any one of claims 1-2 are processed;The stamping mechanism comprises: Upper die assembly, including upper fixed block, upper punch rotatingly connected at the bottom of the upper fixed block and locking member;The locking member is used for locking and fixing the upper fixed block and the upper punch; The lower mold assembly comprises a lower mold, a limiting piece, a locking part and a clamping piece; the lower mold is provided with a communication hole, and the top of the lower mold is provided with a profiling groove in communication with the communication hole; the limiting piece is slidably connected to one side of the lower mold along the X direction and is connected to the lower mold through the locking part; the gauge, the upper pressing piece and the lower fastener are respectively arranged on the upper surface of the lower mold and are respectively connected to the lower mold through the clamping piece; the vertical section of the gauge, the upper vertical plate of the upper pressing piece and the lower vertical plate of the lower fastener are arranged on one side of the limiting piece; the base is located in the profiling groove, and the axis measuring piece is located in the communication hole.

8. The stamping mechanism of claim 7, wherein: The lower mold is further provided with a limiting groove in communication above the profiling groove, and the limiting groove is used for limiting the gauge, the upper pressing piece and the lower fastener.

9. The stamping mechanism of claim 7, wherein: The limiting piece is in U-shaped structure; the limiting piece comprises a limiting side and two connecting sides which are vertically connected to the two ends of the limiting side; the limiting side is used for limiting the gauge, the upper pressing piece and the lower fastener; the two connecting sides are respectively connected to the lower mold through the locking part.

10. The stamping mechanism of claim 7, wherein: The vertical section of the gauge, the upper vertical plate of the upper pressing piece and the lower vertical plate of the lower fastener are arranged on the inner side of the limiting piece; the thicknesses of the vertical section, the upper vertical plate and the lower vertical plate are equal.

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