Counterbore drilling positioning device

Abstract

The utility model relates to the technical field of drilling positioning, in particular to a counterbore drilling positioning device which comprises a supporting piece and a drilling jig detachably fixed to the supporting piece. The drill jig is provided with a through hole penetrating through the drill jig, and the outer side of the bottom of the drill jig is a conical surface; according to the device, the coaxiality of the counter bore and the bottom hole is guaranteed through matched use of the drill jig and the supporting piece, and the situation that the screw is inclined and cannot be completely sunk into the counter bore is avoided. According to the utility model, the technical problem that the coaxiality deviation of the counter bore and the matched drill hole of the mounting piece is large due to manual matched drilling is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling positioning, and more specifically, to a countersunk hole drilling positioning device. Background Art

[0002] In the original installation process of the countersunk hole components of urban rail vehicles, on-site manual drilling is required. However, relying solely on the skill level of the operator during manual drilling has certain limitations, resulting in a large coaxiality deviation between the countersunk hole of the installation part and the drilled hole. This not only makes it difficult for the countersunk part of the screw to be completely embedded in the countersunk hole when using countersunk screws for fastening later, thus affecting the aesthetics of the appearance components, but also may cause inconvenience to the grinding and caulking processes of components such as the floor. More seriously, the coaxiality deviation may also cause the screws to be skewed after installation, leading to loosening problems and posing a potential threat to the overall safety and reliability of the vehicle. Therefore, it is of great significance to solve the problem of large coaxiality deviation between the countersunk hole of the installation part and the drilled hole caused by manual drilling. Summary of the Utility Model

[0003] The purpose of this application is to provide a countersunk hole drilling positioning device, which solves the technical problem of large coaxiality deviation between the countersunk hole of the installation part and the drilled hole caused by manual drilling.

[0004] To solve the above technical problems, the following solution is adopted in this application:

[0005] The utility model provides a countersunk hole drilling positioning device, which is characterized in that: it includes a support member and a drill die, and the drill die is detachably fixed on the support member; the drill die is provided with a through hole penetrating the drill die, and the outer side of the bottom of the drill die is a conical surface.

[0006] In some embodiments, the outer side of the drill die is stepped, and the support member is internally provided with a stepped through hole that penetrates the support member and matches the stepped outer side of the drill die.

[0007] The technical solution of this application has at least the following advantages and beneficial effects:

[0008] By using the drill die and the support member in cooperation, the utility model ensures the coaxiality of the countersunk hole and the bottom hole, avoids the situation of screw skew and incomplete sinking into the countersunk hole, maintains the aesthetics while ensuring the normal progress of the subsequent processes, and reduces the time for rework and repair; the utility model is easy to operate and can help the operator complete manual drilling efficiently and stably. Brief Description of the Drawings

[0009] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0010] Figure 2 It is a schematic cross-sectional structure diagram of the utility model.

[0011] In the figure: 1 - support member, 2 - jig. Specific embodiments

[0012] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0013] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. If terms such as "center", "upper", "lower", "inner", "outer", etc. indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of this application is normally placed. It is only for the convenience of describing this application 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 this application. It should also be noted that unless otherwise clearly defined and limited, if terms such as "set", "installed", "connected" are 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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside 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 specific circumstances.

[0014] Embodiment 1

[0015] Please refer to Figure 1 - Figure 2 , the present utility model provides a counterbore drilling positioning device, including a support member 1 and a jig 2, and the jig 2 is detachably fixed on the support member 1; the jig 2 is provided with a through hole penetrating the jig 2, and the outer side of the bottom of the jig 2 is a conical surface;

[0016] In this embodiment, the outer side of the jig 2 is stepped, and the support member 1 is internally provided with a stepped through hole penetrating the support member 1 and matching the stepped outer side of the jig 2.

[0017] It should be explained that the jig 2 contacts the external connecting member with a counterbore through the stepped through hole inside the support member 1, and the junction of the bottom conical surface of the jig 2 and the circumferential side surface in the middle of the jig 2 is flush with the bottom of the support member 1.

[0018] Specifically, this positioning device is placed on the connecting piece with a counterbore. The bottom of the support member 1 contacts the top of the connecting piece with a counterbore, and the bottom conical surface of the drill jig 2 fits perfectly with the conical opening of the counterbore of the connecting piece with a counterbore. The drill tool is inserted into the counterbore of the connecting piece with a counterbore through the through hole of the drill jig 2, and the bottom of the drill tool contacts the area to be drilled of the connecting piece to be drilled. The drill tool drills on the connecting piece to be drilled.

[0019] It should be noted that the drill tool drills on the connecting piece to be drilled through this positioning device and the connecting piece with a counterbore in sequence, which can ensure that the coaxiality error of the drilled hole is within 0.2 mm, avoid the situation that the screw is skewed and cannot be completely sunk into the counterbore, and ensure the normal progress of the subsequent process construction while maintaining the appearance.

[0020] It should be noted that the drill jig 2 with different through hole sizes can be replaced according to different counterbore sizes in the present utility model, so that this positioning device can be matched with different counterbores.

[0021] So far, the embodiments of the present utility model have been described in detail. In order to avoid obscuring the concept of the present utility model, some details well known in the art have not been described. Those skilled in the art can clearly understand how to implement the technical solution of the present utility model based on the above description. The scope of the present utility model is defined by the appended claims.

Claims

1. A countersunk hole drilling positioning device, characterized in that: It includes a support member (1) and a jig (2), and the jig (2) is detachably arranged on the support member (1); the jig (2) is provided with a through hole penetrating the jig (2), and the outer side of the bottom of the jig (2) is a conical surface.

2. The countersunk hole drilling positioning device according to claim 1, characterized in that, The outer side of the jig (2) is stepped, and the support member (1) is internally provided with a stepped through hole that penetrates the support member (1) and matches the stepped outer side of the jig (2).

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