Punching tool for visual lock mark web of harmonious locomotive

Abstract

The utility model relates to a harmonious locomotive visual lock mark web punching tool. The harmonious locomotive visual lock mark web punching tool comprises a coring drill bit and a positioning sleeve. The coring drill bit comprises a hollow drill bit part and a positioning rod part coaxially arranged with the hollow drill bit part; the positioning sleeve comprises a first circular column part and a second circular column part coaxially arranged with the first circular column part, the inner diameter of the first circular column part and the inner diameter of the second circular column part are the same as the diameter of the positioning rod part of the coring drill bit, and the outer diameter of the second circular column part is the same as the inner diameter of the hollow drill bit part of the coring drill bit; the outer diameter of the first circular column part is larger than that of the second circular column part. The outer diameter of the coring drill bit hollow drill bit part is the same as the visual lock mark in size. During use, the coring drill bit is connected with an electric drill, the positioning sleeve is placed in the visual lock mark web, the positioning rod portion of the coring drill bit is placed in an inner hole of the positioning sleeve, and punching is conducted through the hollow drill bit portion of the coring drill bit. By means of the coring drill bit and the positioning sleeve, the visual lock mark web of the linkage door lock of the harmonious locomotive can be accurately cut to drill mounting holes.

Description

Technical Field

[0001] The utility model relates to the technical field of locomotive manufacturing, and particularly relates to a punching tool for the web of a sight lock mark of a Harmony locomotive. Background Art

[0002] As the installation base of the sight lock mark on the linkage door lock of the Harmony locomotive, the web of the sight lock mark needs to be punched during processing. At present, when punching the installation holes of the web of the sight lock mark in the production line of the Harmony locomotive door lock, an electric drill is directly used for operation. The quality of the installation holes depends very much on the experience of the staff, which results in a relatively high replacement rate of the web when installing the sight lock mark, a large overhaul investment cost, and the assembly accuracy not meeting the technical requirements.

[0003] Therefore, this application proposes a punching tool for the web of a sight lock mark of a Harmony locomotive. Summary of the Utility Model

[0004] Aiming at the problems of non-standard punching of the web of the sight lock mark installation seat of the existing Harmony locomotive, relatively high replacement rate of the web, large overhaul investment cost, and the assembly accuracy not meeting the technical requirements, the utility model proposes a punching tool for the web of a sight lock mark of a Harmony locomotive, and the specific technical solutions are as follows:

[0005] A punching tool for the web of a sight lock mark of a Harmony locomotive includes a core drill bit and a positioning sleeve; the core drill bit includes a hollow drill head and a positioning rod portion coaxially arranged with the hollow drill head, the positioning rod portion is arranged inside the hollow drill head and connected to the hollow drill head; the positioning sleeve includes a first circular cylinder portion and a second circular cylinder portion coaxially arranged with the first circular cylinder portion, the outer diameter of the first circular cylinder portion is greater than that of the second circular cylinder portion, the inner diameters of the first circular cylinder portion, the second circular cylinder portion and the diameter of the positioning rod portion of the core drill bit are the same, the outer diameter of the first circular cylinder portion is the same as the inner diameter of the hollow drill head of the core drill bit, and the outer diameter of the hollow drill head of the core drill bit is the same as the size of the sight lock mark; when in use, the core drill bit is connected to an electric drill, the positioning sleeve is placed inside the web of the sight lock mark, the positioning rod portion of the core drill bit is placed into the inner hole of the positioning sleeve, and punching is performed through the hollow drill head of the core drill bit.

[0006] Further, the hollow drill head of the core drill bit is polished by toughness grinding.

[0007] Further, the positioning rod portion of the core drill bit is a threaded drill bit.

[0008] The beneficial effects of the utility model are as follows:

[0009] The web of the sight lock mark of the linkage door lock of the Harmony locomotive can be accurately cut and punched with installation holes through the core drill bit and the positioning sleeve, so that the aperture size is appropriate and meets the technical requirements of the assembly accuracy with the sight lock mark. Brief Description of the Drawings

[0010] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the attached drawings required for the description of the embodiments or the prior art. Obviously, the attached drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other attached drawings can be obtained based on these drawings.

[0011] Figure 1 is a combined schematic diagram of the punching tooling for the web of the vision lock mark of the harmonious locomotive described in the present invention;

[0012] Figure 2 is a structural schematic diagram of the core drill bit described in the present invention;

[0013] Figure 3 is a schematic diagram of the positioning sleeve described in the present invention;

[0014] Figure 4 is a schematic diagram of the web of the vision lock mark described in the present invention.

[0015] In the figure: 1. Core drill bit; 2. Positioning sleeve; 3. Web of the vision lock mark; 3.1 Lock hole. Detailed implementation manners

[0016] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the attached drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0017] The present invention provides the following specific implementation schemes:

[0018] Such as Figures 1-3As shown, the utility model provides a Harmony locomotive visual lock mark web drilling tool, including a core drill bit 1 and a positioning sleeve 2; the core drill bit 1 includes a hollow drill head and a positioning rod portion coaxially arranged with the hollow drill head, the positioning rod portion is arranged in the hollow drill head and connected to the hollow drill head; the positioning sleeve 2 includes a first circular cylindrical portion and a second circular cylindrical portion coaxially arranged with the first circular cylindrical portion, the outer diameter of the first circular cylindrical portion is larger than the second circular cylindrical portion, the inner diameter of the first circular cylindrical portion, the inner diameter of the second circular cylindrical portion and the diameter of the positioning rod portion of the core drill bit 1 are the same, the outer diameter of the first circular cylindrical portion is the same as the inner diameter of the hollow drill head of the core drill bit 1, and the outer diameter of the hollow drill head of the core drill bit 1 is the same as the size of the visual lock mark; when in use, the core drill bit 1 is connected to the electric drill, the positioning sleeve 2 is placed in the visual lock mark web 3, the positioning rod portion of the core drill bit 1 is placed in the inner hole of the positioning sleeve 2, and drilling is performed by the hollow drill head of the core drill bit 1.

[0019] Preferably, the hollow drill head of the core drill bit is ground using tough grinding to achieve a diameter accuracy of 28.02 mm to 28.06 mm.

[0020] Preferably, the positioning rod portion of the core drill bit 1 is a threaded drill bit.

[0021] like Figure 4 As shown in the visual lock tag web 3, the visual lock tag installation position is above the lock hole 3.1. The lock hole 3.1 includes a small diameter section and a large diameter section. The outer diameter of the first circular ring column of the positioning sleeve 2 is consistent with the diameter of the large diameter section of the lock hole 3.1, and the outer diameter of the second circular ring column of the positioning sleeve 2 is consistent with the diameter of the small diameter section of the lock hole 3.1. When installing the visual lock tag, a mounting hole needs to be opened on the surface of the large diameter section. In this embodiment, when drilling the mounting hole, the positioning sleeve 2 is placed in the lock hole, the coring drill bit 1 is installed on the electric drill, and the positioning rod of the coring drill bit 1, that is, the threaded drill bit, is placed in the inner hole of the positioning sleeve 2. The coring drill bit 1 is driven by the electric drill to rotate and move forward toward the visual lock tag web 3. Finally, the positioning sleeve 2 completely enters the coring drill bit 1 and presses against the bottom of the hollow drill head of the coring drill bit 1 to drill a mounting hole.

[0022] The core drill bit 1 and the positioning sleeve 2 can be used to accurately cut and drill the mounting hole on the web 3 of the visual lock mark of the coordinated door lock of the Harmony locomotive so that the hole size is appropriate and the technical requirements of the assembly accuracy with the visual lock mark are met.

[0023] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements shall fall within the scope of the present invention as claimed.

Claims

1. A punching tooling for the web plate of the visual locking mark of a harmonious locomotive, characterized in that: It includes a core bit (1) and a positioning sleeve (2); the core bit (1) includes a hollow drill head and a positioning rod portion arranged coaxially with the hollow drill head, the positioning rod portion is arranged inside the hollow drill head and connected to the hollow drill head; the positioning sleeve (2) includes a first circular cylindrical portion and a second circular cylindrical portion arranged coaxially with the first circular cylindrical portion, the outer diameter of the first circular cylindrical portion is greater than that of the second circular cylindrical portion, the inner diameters of the first circular cylindrical portion, the second circular cylindrical portion and the diameter of the positioning rod portion of the core bit (1) are the same, the outer diameter of the first circular cylindrical portion is the same as the inner diameter of the hollow drill head of the core bit (1), and the outer diameter of the hollow drill head of the core bit (1) is the same as the size of the visual lock mark; during use, the core bit (1) is connected to an electric drill, the positioning sleeve (2) is placed inside the web (3) of the visual lock mark, the positioning rod portion of the core bit (1) is placed into the inner hole of the positioning sleeve (2), and drilling is carried out through the hollow drill head of the core bit (1).

2. The punching tooling for the web of the vision locking mark of the harmonious locomotive according to claim 1, wherein: The hollow drill head of the core bit (1) is polished using toughness grinding.

3. A punching tool for the web of the visual locking mark of a harmonious locomotive according to claim 1, characterized in that: The positioning rod portion of the core bit (1) is a threaded drill bit.

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