Aluminum alloy small pipe wall drilling tool

Abstract

An aluminum alloy small pipe wall drilling tool comprises two clamping blocks, the two clamping blocks are combined to form a regular polygon cylinder, the opposite side faces of the two clamping blocks are vertical faces, a square through groove is formed in the middle of each vertical face, a positioning hole is formed in each groove wall of the square through groove, the positioning holes are through holes, and the positioning holes are matched with the through holes. Pin holes are formed in the two opposite corners of the vertical faces of the clamping blocks, the pin holes of the two clamping blocks are aligned with each other, after the pin holes are aligned, a dowel pin is inserted into the pin holes, the two clamping blocks can be connected into a whole, and at the moment, the through grooves of the two clamping blocks are combined into a polygonal groove allowing a small pipe to pass through. According to the drilling tool, a plurality of hole sites can be positioned in advance at a time, fixing is convenient, and the drilling precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe wall drilling tools, in particular to a pipe wall drilling tool for an aluminum alloy small pipe. Background Art

[0002] In the manufacturing and processing of aluminum alloy small tubes, the tube wall will be punched in consideration of the functional requirements of the tube fittings, the convenience of connection and assembly, etc. For products that require drilling multiple holes in the tube wall of the aluminum alloy small tube perpendicular to the axis, the positioning of the holes and the fixation during processing are the main technical difficulties. The original conventional design cannot meet the above-mentioned punching requirements, so it is necessary to redesign the fixing tooling to meet production needs.

[0003] Some existing pipe wall punching equipment fixes the pipe fittings on the device, and then uses a drilling machine to punch the pipe wall, but only one hole can be punched in one direction at a time. When punching holes in the pipe wall along the circumferential direction, the pipe fittings need to be manually rotated and adjusted, which is troublesome to operate and the process is complicated. For example, a pipe punching processing device disclosed in Chinese patent document CN212191327U and a single-wall PP corrugated pipe wall punching device disclosed in Chinese patent document CN216992256U are both of the above-mentioned structural type. The utility model proposes a tooling for assisting the drilling of small aluminum alloy pipe walls. Utility Model Content

[0004] The utility model aims to provide a tool for drilling holes in the wall of a small aluminum alloy tube, which can pre-position multiple holes at one time and is easy to fix, thereby improving the drilling accuracy.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A tool for drilling holes in the wall of an aluminum alloy small tube comprises two clamping blocks, which are combined into a regular polygonal cylinder, the opposite sides of the two clamping blocks are vertical surfaces, a square through slot is provided in the middle of the vertical surface, and a positioning hole is provided on each slot wall of the square through slot, wherein the positioning hole is a through hole, and pin holes are provided on two opposite corners of the vertical surface of the clamping block, and the pin holes of the two clamping blocks are aligned with each other. After the pin holes are aligned, the two clamping blocks can be connected as a whole by inserting a joint pin. At this time, the through slots of the two clamping blocks are combined into a polygonal slot for the small tube to pass through.

[0007] As a preferred technical solution, the pin hole of the clamping block is a through hole, which is convenient for inserting and removing the pin.

[0008] Compared with the prior art, the utility model has the following beneficial effects:

[0009] 1. In the utility model, the clamping block is a polygonal structure, and its bottom surface fits with the workbench when drilling, which is convenient for fixing the entire tooling and avoiding displacement during drilling.

[0010] 2. In the utility model, a plurality of positioning holes are provided on the clamping block to locate the positions of the holes and ensure the accuracy of the drilling.

[0011] 3. The utility model has a simple structure, is easy to use, and can be directly applied to existing punching equipment, so it is highly economical. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings:

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a top view of the utility model;

[0015] Figure 3 This is the AA cross-sectional view of the utility model;

[0016] The reference numerals are as follows:

[0017] Clamping block 1, pin hole 2, through slot 3, positioning hole 4. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0020] In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing the present application and simplifying the description, and does 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 the present application. In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, if the terms "set", "install", and "connect" appear, they 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 it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0021] Example

[0022] like Figure 1-3 As shown, a tool for drilling holes on the wall of a small aluminum alloy tube comprises two clamping blocks 1, which are combined into a regular polygonal cylinder, the opposite sides of the two clamping blocks 1 are vertical surfaces, a square through slot 3 is provided in the middle of the vertical surface, a positioning hole 4 is provided on each slot wall of the square through slot 3, the positioning hole 4 is a through hole, pin holes 2 are provided on two opposite corners of the vertical surface of the clamping block 1, the pin holes 2 of the two clamping blocks 1 are aligned with each other, and after the pin holes 2 are aligned, the two clamping blocks 1 can be connected as a whole by inserting a pin, and at this time, the through slots 3 of the two clamping blocks 1 are combined into a polygonal slot for the small tube to pass through.

[0023] It is worth mentioning that the aluminum alloy small tube that needs to be punched is clamped and fixed by the two clamping blocks 1, the square groove formed by the through grooves 3 of the two clamping blocks 1 is used to place the aluminum alloy small tube, and the pin holes 2 of the two clamping blocks 1 are aligned and the pins are inserted to fix the clamping blocks 1 and the clamped aluminum alloy small tube. At this time, the several positioning holes 4 are perpendicular to the axis of the small tube, and the tube wall can be punched through the positioning holes, and the hole positions are accurate.

[0024] In particular, the polygonal outer wall of the clamp 1 ensures that when the fixed tool is used for drilling, there will always be a bottom surface of the clamp in contact with the workbench when the hole is flipped over, which facilitates fixation and avoids the force generated during drilling causing the fixed tool to shift or rotate, resulting in inaccurate hole positions.

[0025] In some feasible embodiments, the pin hole 2 of the clamping block 1 is a through hole to facilitate the insertion and removal of the pin.

[0026] When in use, place the aluminum alloy small tube in the square groove formed by the through grooves 3 of the two clamping blocks 1, and pass the pin through the pin holes 2 of the two clamping blocks 1 to connect the two clamping blocks 1 as a whole. The aluminum alloy small tube is fixed between the two clamping blocks 1. At this time, the positioning holes 4 opened on the clamping blocks 1 are used to locate the holes that need to be punched in the aluminum alloy small tube. The bottom surface of the clamping block 1 is fixed on the workbench, and then a punching tool is used to pass through the positioning holes 4 to punch holes in the aluminum alloy small tube.

[0027] In addition, it should be understood that although this specification is described in accordance with the implementation methods, not every implementation method contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art. So far, each embodiment of the present disclosure has been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here. The scope of the present disclosure is defined by the attached claims.

Claims

1. A drilling tool for a small aluminum alloy tube wall, characterized in that: The invention comprises two clamping blocks (1), wherein the two clamping blocks (1) are combined to form a regular polygonal column, the opposite side surfaces of the two clamping blocks (1) are vertical surfaces, a square through slot (3) is provided in the middle of the vertical surface, a positioning hole (4) is provided on each slot wall of the square through slot (3), and the positioning hole (4) is a through hole, and pin holes (2) are provided at two opposite corners of the vertical surface of the clamping block (1), and the pin holes (2) of the two clamping blocks (1) are aligned with each other. After the pin holes (2) are aligned, a pin can be inserted to connect the two clamping blocks (1) into a whole, and at this time, the through slots (3) of the two clamping blocks (1) are combined into a polygonal slot for a small tube to pass through.

2. The aluminum alloy small tube wall drilling tool according to claim 1 is characterized in that: The pin hole (2) of the clamping block (1) is a through hole, which is convenient for inserting and removing the pin.

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