A multi-use positioning cone hole punch assembly

Abstract

The utility model discloses a kind of multiple-use positioning cone hole punching assembly, including positioning sleeve and movable drill bushing, the positioning sleeve is provided with the guide portion matched with movable drill bushing and the flared portion matched with the taper of cone hole;The movable drill bushing is movably sleeved in the positioning sleeve;The direction portion is straight line type guide hole, the inner diameter of the guide hole is compatible with the size of movable drill bushing;Make movable drill bushing and guide hole gap match;The present scheme is arranged straight hole section in positioning sleeve, by controlling the hole size in positioning sleeve and increasing movable drill bushing, to ensure the positioning accuracy of matching drill hole when multiple-use product is connected with process spare part, to reduce the number of times of replacing positioning sleeve after each use process spare part, reduce overall cost.

Description

Technical Field

[0001] This utility model relates to the field of mechanical assembly technology, and in particular to a multi-use positioning cone hole drilling assembly. Background Technology

[0002] In mechanical assembly, process components are often used to assemble products to meet the process requirements during assembly or testing. These process components are then removed after use. In order to reduce costs, these process components need to be reused.

[0003] During the assembly process, these process components sometimes require tapered pin positioning to ensure the positional accuracy between components. For example, process connection boxes connecting the diesel engine and the main generator are commonly used components. The common method is to replace the positioning sleeve when reusing them.

[0004] When a product is connected to process components, and these process components need to be repeatedly connected to different products, the following procedures must be followed: Figure 1 As shown, first drill the positioning hole, then... Figure 2 The drilled positioning cone hole is shown, and then... Figure 3 Install the positioning pin as shown; after each use of the process component, the positioning sleeve must be replaced to ensure the positioning accuracy when the product is connected to the process component next time. Utility Model Content

[0005] The purpose of this invention is to provide a multi-use positioning cone hole drilling component to address the above-mentioned shortcomings, thereby solving the problems of inaccurate positioning and high cost when using conventional methods to process positioning cone holes.

[0006] This utility model is achieved through the following solution: A reusable positioning tapered hole drilling assembly includes a positioning sleeve and a movable drill sleeve. The positioning sleeve is provided with a guide portion that mates with the movable drill sleeve and a flared portion that mates with the taper of the tapered hole. The movable drill sleeve is movably fitted inside the positioning sleeve.

[0007] Based on the structure of the above-mentioned reusable positioning cone hole drilling assembly, the guide part is a straight guide hole, and the inner diameter of the guide hole is adapted to the size of the movable drill sleeve, so that the movable drill sleeve and the guide hole are in clearance fit.

[0008] Based on the structure of the above-mentioned reusable positioning cone hole drilling assembly, the central axis of the guide hole is collinear with the central axis of the movable drill sleeve.

[0009] Based on the structure of the above-mentioned reusable positioning cone hole drilling assembly, the contact portion between the guide part and the movable drill sleeve is provided with a wear-resistant layer.

[0010] Based on the structure of the above-mentioned reusable positioning cone hole drilling assembly, the flared part is generally a frustum-shaped structure.

[0011] Based on the structure of the above-mentioned reusable positioning cone hole drilling assembly, the flared portion includes a first end face and a second end face; the size of the first end face is not less than the size of the second end face, and the second end face is disposed near the guide portion.

[0012] Based on the structure of the above-mentioned reusable positioning cone hole drilling assembly, the length of the guide hole is no more than one-fifth of the total size of the positioning sleeve.

[0013] Based on the above-mentioned structure of a reusable positioning cone hole drilling assembly, the movable drill sleeve includes a stop ring, a positioning body, and a central hole. The stop ring is located at the end of the positioning body, and the central axes of the stop ring and the positioning body are collinear. The central hole passes through the stop ring and the positioning body.

[0014] Based on the structure of the above-mentioned reusable positioning cone hole drilling assembly, the distance between the end of the stop ring and the positioning body is a first dimension, and the thickness of the positioning sleeve away from the end of the guide is a second dimension; the second dimension is not less than half of the first dimension.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: 1. In this solution, the positioning sleeve is placed on the process component, and then the movable drill sleeve is slid into the guide part through the flared part. The guide part guides the movable drill sleeve, enabling it to accurately position the hole on the product. An external machining component passes through the movable drill sleeve to drill a hole in the product, reaming the hole to the process bottom diameter of the tapered hole. Then, the movable drill sleeve is removed, and the tapered hole is reamed along the process hole. Finally, a positioning taper pin is installed on the tapered hole, and the drilling accuracy is checked. Then, the positioning taper pin, positioning sleeve, and movable drill sleeve are removed, and the operation is repeated on the next product. Because the positioning sleeve has a guide part, the hole position can be accurately determined in conjunction with the movable drill sleeve, and the guide part on the positioning sleeve will not be damaged when drilling the process hole. At the same time, the positioning sleeve also has a flared part, which facilitates the tapered hole reaming operation later, reduces the impact of tapered hole reaming operation on the guide part, and allows the guide part to still position the positioning sleeve when used in multiple places, reducing the replacement frequency of the positioning sleeve and thus saving costs. Attached Figure Description

[0016] Figures 1-3 This is a schematic diagram of the existing technology; Figure 4 This is a schematic diagram of the overall structure of this utility model; Figure 5 This is a schematic diagram of the overall structure of the positioning sleeve in this utility model; Figure 6 This is an enlarged structural schematic diagram of the positioning sleeve and the movable drill sleeve in this utility model; Figure 7 This is a schematic diagram of the structure of the wear-resistant layer of this utility model; Reference numerals: 1. Positioning sleeve; 2. Movable drill sleeve; 3. Guide part; 4. Flared part; 5. Wear-resistant layer; 6. Product; 7. Process component; 8. Positioning taper pin; 21. Stop ring; 22. Positioning body; 23. Center hole; 24. First dimension; 25. Second dimension; 41. First end face; 42. Second end face. Detailed Implementation

[0017] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0018] Any feature disclosed in this specification (including any appended claims and abstract) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0019] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a predetermined orientation, or be constructed and operated in a predetermined orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature.

[0021] Example 1 like Figures 4-7 As shown, this utility model provides a technical solution: A reusable positioning tapered hole drilling assembly includes a positioning sleeve 1 and a movable drill sleeve 2. The positioning sleeve 1 is provided with a guide part 3 that cooperates with the movable drill sleeve 2 and a flared part 4 that cooperates with the taper of the tapered hole. The movable drill sleeve 2 is movably fitted in the positioning sleeve 1.

[0022] Based on the above structure, in this solution, during use, the positioning sleeve 1 is placed on the process component 7, and then the movable drill sleeve 2 is slid into the guide part 3 through the flared part 4. The guide part 3 guides the movable drill sleeve 2, enabling it to accurately position the hole in the product 6. An external machining component passes through the movable drill sleeve 2 to drill a hole in the product 6, enlarging the hole to the bottom diameter of the tapered hole process. Then, the movable drill sleeve 2 is removed, and the tapered hole is reamed along the process hole. Finally, a positioning cone pin 8 is installed on the tapered hole, and the drilling accuracy is checked. Then, the positioning cone pin is removed. 8. Positioning sleeve 1 and movable drill sleeve 2 are used repeatedly on the next product 6. Since the positioning sleeve 1 is equipped with a guide part 3, the hole position can be accurately determined in conjunction with the movable drill sleeve 2. The guide part 3 on the positioning sleeve 1 will not be damaged when drilling process holes. At the same time, the positioning sleeve 1 is also equipped with a flared part 4, which facilitates the subsequent taper hole reaming operation and reduces the impact on the guide part 3 during taper hole reaming. This allows the guide part 3 to still be able to position the positioning sleeve 1 when it is used in multiple places, reducing the replacement frequency of the positioning sleeve 1 and thus saving costs.

[0023] As an example, the guide part 3 can be a straight guide hole, the inner diameter of which is adapted to the size of the movable drill sleeve 2, so that the movable drill sleeve 2 and the guide hole are in clearance fit.

[0024] Based on the above structure, the movable drill sleeve 2 can be guided by the straight guide hole to ensure the verticality of the entire movable drill sleeve 2.

[0025] As an example, the central axis of the guide hole is collinear with the central axis of the movable drill bushing 2. This further ensures the accuracy of the entire movable drill bushing 2 during use.

[0026] As an example, a wear-resistant layer 5 can be provided at the contact part between the guide part 3 and the movable drill sleeve 2. Since the guide part 3 will be damaged after repeated use, providing a wear-resistant layer 5 at the contact part between the guide part 3 and the movable drill sleeve 2 can extend its service life.

[0027] As an example, the flared part 4 is a frustum-shaped structure, and the flared part 4 includes a first end face 41 and a second end face 42; the size of the first end face 41 is not smaller than the size of the second end face 42, and the second end face 42 is located close to the guide part 3.

[0028] Based on the above structure, the guide part 3 and the flared part 4 are connected as a whole. On the one hand, the entire flared part 4 can serve as the inlet guide for the movable drill bit, so that the movable drill sleeve 2 can quickly enter the guide part 3 and improve the insertion speed of the movable drill sleeve 2.

[0029] As an example, the length of the guide hole is no more than one-fifth of the total size of the positioning sleeve 1.

[0030] Based on the above structure, the function of the guide hole in the positioning sleeve 1 is to enable the movable drill sleeve 2 to be centered. Therefore, the guide hole does not need to be too long. Setting it to be less than one-fifth of the positioning sleeve 1 can minimize the damage to the guide hole during the taper hole operation. At the same time, an excessively long guide hole will also affect the taper hole operation.

[0031] As an example, the movable drill sleeve 2 may include a stop ring 21, a positioning body 22 and a center hole 23. The stop ring 21 is located at the end of the positioning body 22, and the central axes of the stop ring 21 and the positioning body 22 are collinear. The center hole 23 is provided through the stop ring 21 and the positioning body 22.

[0032] Based on the above structure, the positioning body 22 is used to cooperate with the guide part 3 to achieve guidance, and the abutment ring 21 is used to contact the end of the positioning sleeve 1 to limit the extreme position of the positioning body 22 and ensure more accurate process hole opening operation.

[0033] As an example, the distance between the end of the stop ring 21 and the positioning body 22 is a first dimension 24, and the thickness of the positioning sleeve 1 away from the end of the guide part 3 is a second dimension 25; the second dimension 25 is not less than half of the first dimension 24.

[0034] Based on the above structure, the first dimension 24 and the second dimension 25 are specially designed so that the abutment ring 21 and the end of the positioning sleeve 1 have sufficient contact surface; thereby, the abutment ring 21 can stably abut when the movable sleeve end abuts, and there will be no problem of abnormal slippage.

[0035] This solution involves setting a straight hole section in the positioning sleeve 1. By controlling the inner hole size of the positioning sleeve 1 and adding a movable drill sleeve 2, the positioning accuracy of the drilled hole is ensured when the product 6 is connected to the process component 7 after multiple uses. This reduces the number of times the positioning sleeve 1 needs to be replaced after each use of the process component 7, thereby reducing the overall cost.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A reusable positioning cone hole drilling assembly, characterized in that: It includes a positioning sleeve (1) and a movable drill sleeve (2). The positioning sleeve (1) is provided with a guide part (3) that cooperates with the movable drill sleeve (2) and a flared part (4) that cooperates with the taper of the conical hole. The movable drill sleeve (2) is movably fitted in the positioning sleeve (1).

2. The reusable positioning cone hole drilling assembly as described in claim 1, characterized in that: The guide portion is a straight guide hole, and the inner diameter of the guide hole is adapted to the size of the movable drill sleeve (2); so that the movable drill sleeve (2) and the guide hole are in clearance fit.

3. The reusable positioning cone hole drilling assembly as described in claim 2, characterized in that: The central axis of the guide hole is collinear with the central axis of the movable drill sleeve (2).

4. The reusable positioning cone hole drilling assembly as described in claim 3, characterized in that: The contact portion between the guide part (3) and the movable drill sleeve (2) is provided with a wear-resistant layer (5).

5. A reusable positioning cone hole drilling assembly as described in claim 4, characterized in that: The flared part (4) is a frustum-shaped structure.

6. The reusable positioning cone hole drilling assembly as described in claim 5, characterized in that: The flared portion (4) includes a first end face (41) and a second end face (42); the size of the first end face (41) is not less than the size of the second end face (42), and the second end face (42) is disposed near the guide portion (3).

7. A reusable positioning cone hole drilling assembly as described in claim 6, characterized in that: The length of the guide hole is no more than one-fifth of the total size of the positioning sleeve (1).

8. A reusable positioning cone hole drilling assembly as described in claim 7, characterized in that: The movable drill sleeve (2) includes a stop ring (21), a positioning body (22) and a center hole (23). The stop ring (21) is located at the end of the positioning body (22). The central axes of the stop ring (21) and the positioning body (22) are collinear. The center hole (23) passes through the stop ring (21) and the positioning body (22).

9. A reusable positioning cone hole drilling assembly as described in claim 8, characterized in that: The distance between the end of the stop ring (21) and the positioning body (22) is the first dimension (24), and the thickness of the end of the positioning sleeve (1) away from the guide part (3) is the second dimension (25); the second dimension (25) is not less than half of the first dimension (24).

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