Auxiliary device and method for drilling bolt cotter pins

Abstract

The present invention discloses an auxiliary device and method for drilling holes for bolt cotter pins, which relates to the field of shipbuilding technology. The device comprises a guide cylinder, which allows the screw portion of the bolt to penetrate, and the end of the guide cylinder abuts against the screw head of the bolt; an adjusting cylinder, which is sleeved on the outside of the guide cylinder; and an adjusting structure, which is used to adjust the relative positions of the guide cylinder and the adjusting cylinder to adjust the length of the screw portion of the bolt extending out of the adjusting cylinder. When using the auxiliary device for drilling holes for bolt cotter pins, since the adjusting structure can adjust the relative positions of the guide cylinder and the adjusting cylinder to adjust the length of the screw portion of the bolt extending out of the adjusting cylinder, the length of the screw portion of the bolt extending out of the adjusting cylinder can be adjusted as needed, which facilitates drilling positioning, has a simple operation process, improves construction efficiency, and has a small error. This device can solve the problem in the prior art that the construction process is complicated and manual measurement and positioning may cause errors in the cotter pin position.

Description

Technical Field

[0001] The present invention relates to the technical field of shipbuilding, and in particular to an auxiliary device and method for drilling a bolt cotter pin. Background Art

[0002] The production of hinged bolts is an essential step in the shipbuilding process. To ensure a secure connection and prevent the nut from loosening, the bolt cotter pin holes are usually located after the bolts and nuts are installed on the product. These holes are then marked, removed, and reinstalled at the marked locations for drilling, making the installation process complex. Furthermore, because the bolts and screw holes have an interference fit, hammering is required during installation. This process is affected by the skill and experience of the construction workers, leading to the risk of bolt damage and even injuries from hammering. This poses a risk to production schedules, cost control, and safe production, and goes against the principle of "get it right the first time, get it right the first time."

[0003] In the prior art, after the position of the bolt cotter pin is located, each bolt needs to be marked, which results in a complicated construction process and the problem that manual measurement and positioning may cause errors in the position of the cotter pin. Summary of the Invention

[0004] In response to the defects existing in the prior art, the purpose of the present invention is to provide an auxiliary device and method for drilling holes for bolt cotter pins, which can solve the problems in the prior art that the construction process is complicated and manual measurement and positioning may cause errors in the position of the cotter pins.

[0005] In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0006] In one aspect, an auxiliary device for drilling a bolt cotter pin is provided, comprising:

[0007] A guide cylinder, which allows the screw portion of the bolt to penetrate, and the end of the guide cylinder abuts against the screw head portion of the bolt;

[0008] an adjusting cylinder, which is sleeved on the outer side of the guide cylinder;

[0009] The adjusting structure is used to adjust the relative positions of the guide cylinder and the adjusting cylinder so as to adjust the length of the screw portion of the bolt extending out of the adjusting cylinder.

[0010] On the basis of the above technical solutions,

[0011] In some optional embodiments, the regulating structure includes:

[0012] An external thread, which is provided on the outer side wall of the guide cylinder;

[0013] An internal thread is provided on the inner side wall of the adjusting cylinder and cooperates with the external thread, and is used to adjust the length of the screw portion of the bolt extending out of the adjusting cylinder by rotating the guide cylinder or the adjusting cylinder.

[0014] In some optional solutions, a locking mechanism is further included, which is provided on the guide cylinder and is used to limit the movement of the guide cylinder toward the adjustment cylinder.

[0015] In some optional solutions, the locking mechanism is a locking nut, which is arranged on the external thread and is used to support one end of the adjusting cylinder close to the guide cylinder.

[0016] In some optional solutions, the cross-section of the locking nut is an octagon.

[0017] In some optional solutions, the end of the guide cylinder away from the adjustment cylinder and the end of the adjustment cylinder away from the guide cylinder are both provided with a hexagonal shape.

[0018] In some optional solutions, the guide cylinder and the adjustment cylinder are both subjected to a tempering process.

[0019] In some optional solutions, a handle is provided on the outer side wall of the adjustment cylinder.

[0020] In some optional solutions, the guide cylinder and the adjustment cylinder are both provided with an anti-rust coating.

[0021] On the other hand, a method for drilling a bolt cotter pin is provided, which is implemented using the above-mentioned auxiliary device for drilling a bolt cotter pin, and includes the following steps:

[0022] Measure the thickness of bolted objects;

[0023] According to the thickness of the object, the relative positions of the guide cylinder and the adjustment cylinder are adjusted by the adjustment structure so that the length of the guide cylinder plus the adjustment cylinder is the same as the thickness of the object;

[0024] Tighten the nut at the portion of the bolt extending out of the adjusting cylinder and perform drilling.

[0025] Compared with the prior art, the advantages of the present invention are:

[0026] When using the auxiliary device for drilling a cotter pin of a bolt, the screw portion of the bolt is inserted into the guide cylinder so that the end of the guide cylinder is abutted against the screw head of the bolt, and the adjusting cylinder is sleeved on the outer side of the guide cylinder. The relative positions of the guide cylinder and the adjusting cylinder are adjusted by the adjusting structure to adjust the length of the screw portion of the bolt extending out of the adjusting cylinder. Since the adjusting structure can adjust the relative positions of the guide cylinder and the adjusting cylinder to adjust the length of the screw portion of the bolt extending out of the adjusting cylinder, the length of the screw portion of the bolt extending out of the adjusting cylinder can be adjusted as needed, which facilitates drilling positioning, has a simple operation process, improves construction efficiency, and has a small error. This can solve the problem in the prior art that the construction process is complicated and manual measurement and positioning may cause errors in the cotter pin position. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0028] Figure 1 This is a structural schematic diagram of a guide cylinder in an embodiment of an auxiliary device for drilling a bolt cotter pin according to the present invention;

[0029] Figure 2 This is a structural schematic diagram of an adjusting cylinder in an embodiment of an auxiliary device for drilling a bolt cotter pin according to the present invention;

[0030] Figure 3 This is a schematic structural diagram of a locking nut in an embodiment of an auxiliary device for drilling a bolt cotter pin according to the present invention.

[0031] In the figure: 1. Guide cylinder; 2. Adjustment cylinder; 3. External thread; 4. Internal thread; 5. Locking nut; 6. Handle. DETAILED DESCRIPTION

[0032] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0033] The following is a further detailed description of an embodiment of an auxiliary device and method for drilling a bolt cotter pin according to the present invention in conjunction with the accompanying drawings.

[0034] like Figure 1 and Figure 2 As shown, on the one hand, an auxiliary device for drilling a bolt cotter pin is provided, which comprises:

[0035] A guide cylinder 1, which allows the screw portion of the bolt to penetrate, and the end of the guide cylinder 1 abuts against the screw head of the bolt;

[0036] The adjusting cylinder 2 is sleeved on the outside of the guide cylinder 1;

[0037] The adjusting structure is used to adjust the relative position of the guide cylinder 1 and the adjusting cylinder 2 so as to adjust the length of the screw portion of the bolt extending out of the adjusting cylinder 2 .

[0038] When using the auxiliary device for drilling a cotter pin of a bolt, the screw portion of the bolt is inserted into the guide cylinder 1 so that the end of the guide cylinder 1 is held against the screw head of the bolt, and the adjusting cylinder 2 is sleeved on the outside of the guide cylinder 1. The relative positions of the guide cylinder 1 and the adjusting cylinder 2 are adjusted by the adjusting structure to adjust the length of the screw portion of the bolt extending out of the adjusting cylinder 2. Since the adjusting structure can adjust the relative positions of the guide cylinder 1 and the adjusting cylinder 2 to adjust the length of the screw portion of the bolt extending out of the adjusting cylinder 2, the length of the screw portion of the bolt extending out of the adjusting cylinder 2 can be adjusted as needed, which facilitates drilling positioning, has a simple operation process, improves construction efficiency, and has a small error. This can solve the problem in the prior art that the construction process is complicated and manual measurement and positioning may cause errors in the cotter pin position.

[0039] like Figure 1 and Figure 2 As shown, in some optional embodiments, the adjustment structure includes:

[0040] An external thread 3 is provided on the outer side wall of the guide cylinder 1;

[0041] The internal thread 4 is provided on the inner side wall of the adjusting cylinder 2 and cooperates with the external thread 3 to adjust the length of the screw portion of the bolt extending out of the adjusting cylinder 2 by rotating the guide cylinder 1 or the adjusting cylinder 2 .

[0042] In this embodiment, the adjustment structure is specifically described, and the adjustment structure includes an external thread 3 and an internal thread 4, wherein the external thread 3 is arranged on the outer wall of the guide cylinder 1, and the internal thread 4 is arranged on the inner wall of the adjustment cylinder 2, and cooperates with the external thread 3, and is used to adjust the length of the screw portion of the bolt extending out of the adjustment cylinder 2 by rotating the guide cylinder 1 or the adjustment cylinder 2. The structure is simple, easy to implement, and highly reliable.

[0043] In some optional embodiments, a locking mechanism is further included. The locking mechanism is provided on the guide cylinder 1 and is used to limit the movement of the guide cylinder 1 toward the adjustment cylinder 2 .

[0044] In this embodiment, the auxiliary device for drilling a bolt cotter pin is also provided with a locking mechanism, which is arranged on the guide cylinder 1 and is used to limit the movement of the guide cylinder 1 toward the adjusting cylinder 2, thereby preventing the guide cylinder 1 and the adjusting cylinder 2 from slipping and causing errors in the positioning of the cotter pin.

[0045] like Figure 3 As shown, in some optional embodiments, the locking mechanism is a locking nut 5 , which is disposed on the external thread 3 , and is used to hold the end of the adjusting cylinder 2 close to the guide cylinder 1 .

[0046] In this embodiment, the locking mechanism is a locking nut 5, which is sleeved on the outside of the guide cylinder 1 and is provided on the external thread 3. The locking nut 5 is used to support the end of the adjusting cylinder 2 close to the guide cylinder 1 to prevent the guide cylinder 1 and the adjusting cylinder 2 from slipping and causing errors in the position of the positioning cotter pin. The structure is simple and easy to manufacture.

[0047] like Figure 3 As shown, in some optional embodiments, the cross-sectional shape of the locking nut 5 is an octagon.

[0048] In this embodiment, the cross-section of the locking nut 5 is an octagon, which can be easily rotated by the operator so that the locking nut 5 abuts against the end of the adjusting tube 2 close to the guide tube 1, making the operation more convenient.

[0049] like Figure 1 and Figure 2 As shown, in some optional embodiments, the end of the guide cylinder 1 away from the adjustment cylinder 2 and the end of the adjustment cylinder 2 away from the guide cylinder 1 are both provided with hexagons.

[0050] In this embodiment, a hexagonal lock is provided at the end of the guide cylinder 1 away from the adjusting cylinder 2, and at the end of the adjusting cylinder 2 away from the guide cylinder 1, which can facilitate manual rotation by the operator to adjust the relative position of the guide cylinder 1 and the adjusting cylinder 2, and then adjust the length of the screw portion of the bolt extending out of the adjusting cylinder 2, thereby facilitating operation.

[0051] In some optional embodiments, the guide cylinder 1 and the adjustment cylinder 2 are both subjected to a heat treatment process.

[0052] In this embodiment, the guide cylinder 1 and the adjustment cylinder 2 are both subjected to a quenching and tempering process, which can improve the structural strength of the auxiliary device for drilling a bolt cotter pin and extend its service life.

[0053] like Figure 2 As shown, in some optional embodiments, a handle 6 is provided on the outer side wall of the adjusting cylinder 2 .

[0054] In this embodiment, a handle 6 is provided on the outer side wall of the adjusting cylinder 2, which can facilitate the operator to transfer the auxiliary device for drilling the bolt cotter pin, thereby improving construction efficiency.

[0055] In some optional embodiments, both the guide cylinder 1 and the adjustment cylinder 2 are provided with an anti-rust coating.

[0056] In this embodiment, an anti-rust coating is provided on both the guide cylinder 1 and the adjustment cylinder 2, which can reduce the corrosion of the guide cylinder 1 and the adjustment cylinder 2 due to exposure to the external environment, and can extend the service life of the auxiliary device for bolt cotter pin drilling.

[0057] like Figure 1 and Figure 2 As shown, on the other hand, a method for drilling a bolt cotter pin is provided, which is implemented using the above-mentioned auxiliary device for drilling a bolt cotter pin, and includes the following steps:

[0058] Measure the thickness of bolted objects;

[0059] According to the thickness of the object, the relative positions of the guide cylinder 1 and the adjustment cylinder 2 are adjusted through the adjustment structure so that the length of the guide cylinder 1 plus the adjustment cylinder 2 is the same as the thickness of the object;

[0060] Tighten the nut at the part of the bolt that extends out of the adjusting tube 2 and perform the drill.

[0061] When using the auxiliary device for drilling a cotter pin of a bolt, the screw portion of the bolt is inserted into the guide cylinder 1 so that the end of the guide cylinder 1 is held against the screw head of the bolt, and the adjusting cylinder 2 is sleeved on the outside of the guide cylinder 1. The relative positions of the guide cylinder 1 and the adjusting cylinder 2 are adjusted by the adjusting structure to adjust the length of the screw portion of the bolt extending out of the adjusting cylinder 2, and the nut portion of the bolt is tightened at the corresponding position to perform the drilling. Since the adjusting structure can adjust the relative positions of the guide cylinder 1 and the adjusting cylinder 2 to adjust the length of the screw portion of the bolt extending out of the adjusting cylinder 2, the length of the screw portion of the bolt extending out of the adjusting cylinder 2 can be adjusted as needed, which facilitates drilling positioning, has a simple operation process, improves construction efficiency, and has a small error. This can solve the problem in the prior art that the construction process is complicated and manual measurement and positioning may cause errors in the cotter pin position.

[0062] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0063] It should be noted that, in this application, relational terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0064] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. An auxiliary device for drilling a bolt cotter pin, characterized in that: include: A guide cylinder (1) allows the screw portion of the bolt to penetrate, and the end of the guide cylinder (1) abuts against the screw head portion of the bolt; An adjusting cylinder (2) sleeved on the outside of the guide cylinder (1); An adjustment structure for adjusting the relative position of the guide cylinder (1) and the adjustment cylinder (2) to adjust the length of the screw portion of the bolt extending out of the adjustment cylinder (2); The regulating structure comprises: An external thread (3) provided on the outer side wall of the guide cylinder (1); An internal thread (4) is provided on the inner side wall of the adjusting cylinder (2) and cooperates with the external thread (3) and is used to adjust the length of the screw portion of the bolt extending out of the adjusting cylinder (2) by rotating the guide cylinder (1) or the adjusting cylinder (2); It also includes a locking mechanism, which is arranged on the guide cylinder (1) and is used to limit the movement of the guide cylinder (1) toward the adjustment cylinder (2); The locking mechanism is a locking nut (5), which is arranged on the external thread (3). The locking nut (5) is used to hold the end of the adjustment cylinder (2) close to the guide cylinder (1).

2. An auxiliary device for drilling a bolt cotter pin according to claim 1, characterized in that: The cross-sectional shape of the locking nut (5) is an octagon.

3. The auxiliary device for drilling a bolt cotter pin according to claim 1, characterized in that: The end of the guide cylinder (1) away from the adjustment cylinder (2) and the end of the adjustment cylinder (2) away from the guide cylinder (1) are both provided with a hexagonal shape.

4. The auxiliary device for drilling a bolt cotter pin according to claim 1, characterized in that: The guide cylinder (1) and the regulating cylinder (2) are both subjected to a quenching and tempering process.

5. The auxiliary device for drilling a bolt cotter pin according to claim 1, characterized in that: A handle (6) is provided on the outer side wall of the regulating cylinder (2).

6. The auxiliary device for drilling a bolt cotter pin according to claim 1, characterized in that: The guide cylinder (1) and the adjustment cylinder (2) are both provided with an anti-rust coating.

7. A method for drilling a bolt cotter pin, characterized in that: The auxiliary device for drilling a bolt cotter pin according to any one of claims 1 to 6 is implemented, comprising the following steps: Measure the thickness of bolted objects; According to the thickness of the object, the relative positions of the guide cylinder (1) and the adjustment cylinder (2) are adjusted by the adjustment structure so that the length of the guide cylinder (1) plus the adjustment cylinder (2) is the same as the thickness of the object; The nut is tightened at the portion of the bolt extending out of the adjusting cylinder (2), and the drill is then performed.

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