High-efficiency mql composite tool for structural parts

Abstract

The utility model discloses a kind of high-efficiency MQL composite cutters special for structural member, including butt joint stem body and integrally formed setting first blade edge and second blade edge in butt joint stem body head, second blade edge is located between butt joint stem body and first blade edge, and the outer diameter of second blade edge is same with butt joint stem body, the outer diameter of first blade edge is less than the outer diameter of second blade edge, so that first blade edge and second blade edge are 45 degrees ladder connection. The length direction of stem body is opened with first cooling hole inside butt joint stem body, first cooling hole passes through butt joint stem body and second blade edge and communicates first blade edge. The length direction of stem body is opened with second cooling groove on the circumference wall of butt joint stem body, and second cooling groove communicates second blade edge. The composite cutter, by first blade edge and second blade edge integrally composite on butt joint stem body, form composite cutter with different outer diameters, simultaneously have side milling function, can process 6mm and 7mm round hole or oval hole respectively, can reduce tool changing time, improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of machining tools, and in particular to a high-efficiency MQL composite tool specifically for structural components. Background Technology

[0002] Competition in the machining industry is intensifying, and the pursuit of high-efficiency lean manufacturing has become a key focus for factories. Structural components often require the machining of numerous through holes, particularly vibration damper towers which require machining many D6 round holes (6mm diameter), D7 round holes (7mm diameter), or 6mm or 7mm wide elliptical holes. Therefore, composite tooling capable of machining multiple hole diameters has become the mainstream technology for this type of machining.

[0003] Meanwhile, modern machining generally uses machine tools equipped with MQL cooling (Minimal Quantity Lubrication, also known as minimum quantity lubrication or oil-air mixed lubrication, is a semi-dry cutting technology that mixes compressed gas with a small amount of lubricant to form millimeter or micrometer-sized droplets, which are then sprayed onto the cutting area for cooling and lubrication). MQL-cooled machine tools can reduce the tool cleaning process, save costs, and improve efficiency.

[0004] However, the existing MQL cooling combined with composite tool machining technology still has the following drawbacks:

[0005] 1) Using MQL cooling technology, oil mist reaches the cutting edge of the tool directly through the internal cooling hole, which can cool it efficiently; however, for composite tools, there is generally only front-stage cooling (first-stage cutting edge cooling), and the second-stage cutting edge lacks effective cooling and lubrication, resulting in quality problems such as rough machining surface, aluminum sticking to the cutting edge, and dimensional deviations.

[0006] 2) Due to the thin walls and poor rigidity of the structural components, when using existing composite cutting tools, the transition between the primary and secondary cutting edges is not handled well, which can easily cause vibration marks on the hole surface and cause the hole diameter to exceed the tolerance. Utility Model Content

[0007] To address the shortcomings of existing technologies, this invention provides a high-efficiency MQL composite tool specifically designed for structural components, thereby overcoming the deficiencies in existing technologies.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A high-efficiency MQL composite tool for structural components includes a docking rod body and a primary cutting edge and a secondary cutting edge integrally formed at the head of the docking rod body. The secondary cutting edge is located between the docking rod body and the primary cutting edge, and the outer diameter of the secondary cutting edge is the same as that of the docking rod body. The outer diameter of the primary cutting edge is smaller than that of the secondary cutting edge, so that the primary cutting edge and the secondary cutting edge are connected at a 45-degree step.

[0010] Furthermore, a primary cooling hole is formed inside the docking rod body along the length direction of the rod body. The primary cooling hole passes through the docking rod body and the secondary cutting edge and is connected to the primary cutting edge.

[0011] Furthermore, a secondary cooling groove is formed on the circumferential wall of the docking rod along the length of the rod, and the secondary cooling groove is connected to the secondary cutting edge.

[0012] Preferably, the outer diameter of the secondary cutting edge is 7 mm.

[0013] Preferably, the outer diameter of the first-stage cutting edge is 6mm.

[0014] Preferably, two primary cooling holes are arranged side by side, and the two primary cooling holes are not connected.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1) The high-efficiency MQL composite tool for structural components in this case integrates a primary cutting edge and a secondary cutting edge on the docking rod body to form a composite tool with different outer diameters. It also has a side milling function and can process 6mm and 7mm round or elliptical holes respectively, which can reduce tool change time and improve production efficiency.

[0017] 2) The high-efficiency MQL composite tool for structural components in this case has a 45-degree stepped transition between the primary and secondary cutting edges, which can increase radial centering force and prevent vibration during the secondary cutting edge machining process.

[0018] 3) The high-efficiency MQL composite tool for structural components in this case adds a side wall cooling groove (secondary cooling groove) on the basis of internal cooling (primary cooling hole), and at the same time has the functions of internal and external cooling to provide cooling and lubrication for the primary and secondary cutting edges.

[0019] 4) The high-efficiency MQL composite tool for structural components in this case is reasonably designed, has obvious effects, and is highly versatile. It can be used for MQL cooling processes of structural components, which can effectively improve production efficiency, ensure product quality, and reduce product scrap rate.

[0020] To provide a clearer understanding of this invention, the preferred embodiments of this invention will be described below in conjunction with the accompanying drawings. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a three-dimensional rendering of the present invention;

[0023] Figure 3 This is a perspective structural diagram of the present invention.

[0024] Attached image labels:

[0025] 1-Connecting rod body, 2-First-stage cutting edge, 3-Second-stage cutting edge, 4-Second-stage cooling groove, 5-First-stage cooling hole. Detailed Implementation

[0026] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0027] Furthermore, if terms such as "first" or "second" are used for descriptive purposes only, they are mainly used to distinguish different devices, components or parts (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance or quantity of the indicated devices, components or parts, and should not be construed as indicating or implying relative importance.

[0028] Furthermore, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" 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; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0029] Please also refer to Figure 1-3This utility model provides a high-efficiency MQL composite tool for structural components, including a docking rod body 1 and a primary cutting edge 2 and a secondary cutting edge 3 integrally formed at the head of the docking rod body 1. The secondary cutting edge 3 is located between the docking rod body 1 and the primary cutting edge 2, and the outer diameter of the secondary cutting edge 3 is the same as that of the docking rod body 1. The outer diameter of the primary cutting edge 2 is smaller than that of the secondary cutting edge 3, so that the primary cutting edge 2 and the secondary cutting edge 3 are connected at a 45-degree step. The 45-degree step transition can provide radial centering force and prevent the secondary cutting edge 3 from generating vibration during drilling.

[0030] Furthermore, a secondary cooling groove 4 is provided on the circumferential wall of the connecting rod 1 along the length of the rod. The secondary cooling groove 4 is connected to the secondary cutting edge 3 and is used to provide cooling and lubrication to the secondary cutting edge 3.

[0031] Furthermore, a primary cooling hole 5 is provided inside the docking rod 1 along the length of the rod. The primary cooling hole 5 passes through the docking rod 1 and the secondary cutting edge 3 and connects to the primary cutting edge 2. The primary cooling hole 5 is used to provide cooling and lubrication to the primary cutting edge 2.

[0032] Preferably, in this embodiment, two primary cooling holes 5 are arranged side by side, and the two primary cooling holes 5 are not connected.

[0033] Preferably, in this embodiment, the outer diameter of the secondary cutting edge 3 is 7mm, and the secondary cutting edge 3 is used to drill a 7mm through hole or mill a 7mm elliptical groove.

[0034] Preferably, in this embodiment, the outer diameter of the first-stage cutting edge 2 is 6mm, and the first-stage cutting edge 2 is used to drill a 6mm through hole or mill a 6mm elliptical groove.

[0035] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A high-efficiency MQL composite tool specifically for structural components, characterized in that: It includes a docking rod body (1) and a primary cutting edge (2) and a secondary cutting edge (3) integrally formed on the head of the docking rod body (1). The secondary cutting edge (3) is located between the docking rod body (1) and the primary cutting edge (2), and the outer diameter of the secondary cutting edge (3) is the same as that of the docking rod body (1). The outer diameter of the primary cutting edge (2) is smaller than that of the secondary cutting edge (3), so that the primary cutting edge (2) and the secondary cutting edge (3) are connected in a 45-degree step.

2. The high-efficiency MQL composite tool for structural components according to claim 1, characterized in that: The docking rod (1) has a primary cooling hole (5) inside along the length of the rod. The primary cooling hole (5) passes through the docking rod (1) and the secondary cutting edge (3) and is connected to the primary cutting edge (2).

3. The high-efficiency MQL composite tool for structural components according to claim 2, characterized in that: A secondary cooling groove (4) is provided on the circumferential wall of the connecting rod (1) along the length of the rod, and the secondary cooling groove (4) is connected to the secondary cutting edge (3).

4. The high-efficiency MQL composite tool for structural components according to claim 3, characterized in that: The outer diameter of the secondary cutting edge (3) is 7 mm.

5. A high-efficiency MQL composite tool for structural components according to claim 3, characterized in that: The outer diameter of the first-stage cutting edge (2) is 6 mm.

6. The high-efficiency MQL composite tool for structural components according to claim 3, characterized in that: The first-stage cooling holes (5) are arranged in two parallel rows, and the two first-stage cooling holes (5) are not connected.

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