Reaming tool of flange structure
By designing reaming tools with flange structures, the problem of difficult to ensure consistency of traditional tools is solved, and the size of different apertures is achieved simultaneously on the same cutting head, ensuring the coaxiality and machining accuracy of the product.
Patent Information
- Application Number
- CN202421777312.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-25
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-07-25
AI Technical Summary
In the processing of traditional engine parts, tool consistency is difficult to ensure, resulting in excessive size of the processed product, unable to meet the drawing requirements, and resulting in quality loss.
A reaming tool with a flange structure is designed, and the first and second columns are provided on the cutting head, and the first and second blades are respectively provided. Two sizes of different apertures can be processed simultaneously, and the durability of the tool is improved through chip drains and internal cooling holes.
The reaming tool can process two different aperture sizes on the same cutting head at the same time, ensuring the coaxiality of the product, improving machining accuracy and efficiency, and reducing the problem of size over-difference caused by tool instability.
Smart Images
Figure CN222957639U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of high-speed cutting, and particularly relates to a reaming tool with a flange structure. Background Art
[0002] In the traditional processing of engine parts, special-purpose machines are mostly used for low-speed processing. The technology of cutting tools is underdeveloped, and it is difficult to ensure the consistency of cutting tools, often resulting in out-of-tolerance product dimensions. The product quality cannot meet the requirements of the drawings, bringing a lot of quality losses to the enterprise. In recent years, the advanced manufacturing technology of engines has developed rapidly. Basically, the core parts of engines are processed on CNC horizontal machining centers to ensure the accuracy of products. However, when performing high-speed machining on a machining center, higher requirements are also put forward for cutting tools. The cutting tools must meet the requirements of high speed, high precision, and high durability to ensure the dimensional accuracy of products. The cutting tool with a flange structure can well solve this problem. Content of the Utility Model
[0003] The purpose of the utility model is to provide a reaming tool with a flange structure, which combines the processing dimensions of two different hole diameters on the same tool head, facilitating the guarantee of product coaxiality.
[0004] The embodiments of the utility model are implemented as follows:
[0005] A reaming tool with a flange structure includes a tool head. The tool head includes a first cylindrical body and a second cylindrical body that are coaxially arranged and integrally formed. The diameter of the first cylindrical body is larger than that of the second cylindrical body. The first cylindrical body is provided with a plurality of first cutting blades. The plurality of first cutting blades are located on the side close to the second cylindrical body and are spaced along the circumferential direction of the first cylindrical body. The second cylindrical body is provided with a plurality of second cutting blades. The plurality of second cutting blades are located on the side far from the first cylindrical body and are spaced along the circumferential direction of the second cylindrical body.
[0006] Further, in other preferred embodiments of the utility model, a plurality of chip removal grooves are provided on the tool head. The plurality of chip removal grooves are arranged along the axial direction of the tool head. Both the first cutting blades and the second cutting blades are located on the side walls of the chip removal grooves.
[0007] Further, in other preferred embodiments of the utility model, the number of the chip removal grooves, the first cutting blades, and the second cutting blades are equal. One chip removal groove, one first cutting blade, and one second cutting blade form a chip removal unit. The plurality of chip removal units are spaced along the circumferential direction of the tool head.
[0008] Further, in other preferred embodiments of the utility model, within each chip removal unit, the first cutting blade and the second cutting blade are located on the side walls of the same side of the chip removal groove.
[0009] Further, in other preferred embodiments of the present utility model, a first internal cooling hole and a second internal cooling hole are provided at the bottom of the chip removal groove. The first internal cooling hole is disposed close to the first blade, and the second internal cooling hole is disposed close to the second blade.
[0010] Further, in other preferred embodiments of the present utility model, the reaming tool further includes an HSK tool holder and an intermediate connecting rod. The HSK tool holder, the intermediate connecting rod, and the tool head are axially connected in sequence.
[0011] Further, in other preferred embodiments of the present utility model, the intermediate connecting rod includes a first connecting head, a limiting disk, and a connecting pipe. The first connecting head and the connecting pipe are respectively located on both sides of the limiting disk; the first connecting head can be inserted into the HSK tool holder, and the limiting disk is in contact with the end face of the HSK tool holder; the limiting disk is connected to the HSK tool holder by a plurality of connecting bolts arranged axially.
[0012] Further, in other preferred embodiments of the present utility model, the tool head includes a second connecting head. The second connecting head is disposed on a side of the first columnar body away from the second columnar body; the second connecting head can be inserted into the connecting pipe and is connected to the intermediate connecting rod by a connecting screw passing through the axis of the tool head.
[0013] Further, in other preferred embodiments of the present utility model, the limiting disk is provided with a plurality of axial adjustment screws. The axial adjustment screws penetrate the limiting disk along the axis of the limiting disk, and the plurality of axial adjustment screws are arranged at intervals along the circumferential direction of the limiting disk.
[0014] Further, in other preferred embodiments of the present utility model, the HSK tool holder is provided with a plurality of radial adjustment screws. The radial adjustment screws penetrate the side wall of the HSK tool holder along the radial direction of the HSK tool holder and are in contact with the inserted first connecting head. The plurality of radial adjustment screws are arranged at intervals along the circumferential direction of the HSK tool holder.
[0015] The beneficial effects of the embodiments of the present utility model are as follows:
[0016] The embodiments of the present utility model provide a reaming tool with a flange structure, which includes a tool head. The tool head includes a first columnar body and a second columnar body that are coaxially arranged and integrally formed. The diameter of the first columnar body is larger than that of the second columnar body; a plurality of first blades are provided on the first columnar body. The plurality of first blades are located on a side close to the second columnar body and are arranged at intervals along the circumferential direction of the first columnar body; a plurality of second blades are provided on the second columnar body. The plurality of second blades are located on a side away from the first columnar body and are arranged at intervals along the circumferential direction of the second columnar body. This reaming tool combines two different machining sizes of apertures on the same tool head, can simultaneously machine two different apertures, and can well ensure the coaxiality of the product. Description of the Drawings
[0017] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the accompanying drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present utility model and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.
[0018] Figure 1 Schematic diagram of the cutter head of a reaming tool with a flange structure provided by an embodiment of the present utility model;
[0019] Figure 2 Assembly schematic diagram of a reaming tool with a flange structure provided by an embodiment of the present utility model;
[0020] Figure 3 Schematic diagram of a reaming tool with a flange structure provided by an embodiment of the present utility model.
[0021] Reference numerals: 10 - reaming tool; 100 - cutter head; 110 - first cylindrical body; 111 - first cutting blade; 120 - second cylindrical body; 121 - second cutting blade; 130 - chip removal groove; 131 - first internal cooling hole; 132 - second internal cooling hole; 140 - second connecting head; 141 - first limiting plane; 150 - connecting screw; 200 - intermediate connecting rod; 210 - limiting disc; 211 - connecting bolt; 212 - axial adjustment screw; 220 - connecting pipe; 221 - second limiting plane; 300 - HSK tool holder; 310 - radial adjustment screw. Detailed implementation manners
[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model. Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model claimed, but merely represents the selected embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.
[0023] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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 therefore should not be construed as a limitation to the present utility model.
[0024] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality of" is two or more unless otherwise specifically defined.
[0025] In the present utility model, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0026] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over", and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath", and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the horizontal height of the first feature is lower than that of the second feature. Embodiment
[0027] This embodiment provides a reaming tool 10 for a flange structure. Refer to Figure 1As shown in the figure, it includes a cutter head 100. The cutter head 100 includes a first columnar body 110 and a second columnar body 120 that are coaxially arranged and integrally formed. The diameter of the first columnar body 110 is greater than that of the second columnar body 120. The first columnar body 110 is provided with a plurality of first blades 111. The plurality of first blades 111 are located on the side close to the second columnar body 120 and are arranged at intervals along the circumferential direction of the first columnar body 110. The second columnar body 120 is provided with a plurality of second blades 121. The plurality of second blades 121 are located on the side far from the first columnar body 110 and are arranged at intervals along the circumferential direction of the second columnar body 120. Both the first blades 111 and the second blades 121 are fixed to the cutter head 100 by welding.
[0028] As Figure 1 shown in the figure, the cutter head 100 has two groups of blades. The plurality of first blades 111 located on the first columnar body 110 are used for machining the D46H7 reamed hole, while the plurality of second blades 121 located on the second columnar body 120 are used for machining the D32H7 reamed hole. Using one cutter head 100 to machine two hole diameters can well ensure the coaxiality of machining.
[0029] Furthermore, a plurality of chip removal grooves 130 are provided on the cutter head 100. The plurality of chip removal grooves 130 are arranged along the axial direction of the cutter head 100. Both the first blades 111 and the second blades 121 are located on the side walls of the chip removal grooves 130. The chip removal grooves 130 are beneficial to the discharge of machining debris and improve the machining efficiency. Optionally, the number of the chip removal grooves 130, the first blades 111, and the second blades 121 are all equal. One chip removal groove 130, one first blade 111, and one second blade 121 form a chip removal unit. The plurality of chip removal units are arranged at intervals along the circumferential direction of the cutter head 100. In this embodiment, the number of the chip removal grooves 130, the first blades 111, and the second blades 121 are all six, forming a total of six chip removal units, and the six chip removal units are equally spaced. In other preferred embodiments of the present invention, the number of chip removal units can be increased or decreased according to actual needs.
[0030] Optionally, within each chip removal unit, the first blades 111 and the second blades 121 are located on the side walls of the same side of the chip removal groove 130. In this way, as the cutter head 100 rotates, the orientations of the first blades 111 and the second blades 121 in each chip removal unit remain the same, and the rotation direction does not need to be changed when adjusting the machining hole diameter.
[0031] As Figure 1As shown, a first internal cooling hole 131 and a second internal cooling hole 132 are provided at the bottom of the chip fluting groove 130. The first internal cooling hole 131 is arranged close to the first cutting blade 111, and the second internal cooling hole 132 is arranged close to the second cutting blade 121. The first internal cooling hole 131 and the second internal cooling hole 132 can cool the first cutting blade 111 and the second cutting blade 121 respectively, extending the service life of the first cutting blade 111 and the second cutting blade 121.
[0032] Furthermore, as Figure 2 and Figure 3 shown, the reaming tool 10 further includes an HSK tool shank 300 and an intermediate connecting rod 200. The HSK tool shank 300, the intermediate connecting rod 200, and the tool head 100 are axially connected in sequence. One end of the HSK tool shank 300 can be connected to the spindle of the machine tool, and the specific connection method refers to the prior art and will not be elaborated here. The other end of the HSK tool shank 300 is connected to the intermediate connecting rod 200.
[0033] The intermediate connecting rod 200 includes a first connecting head (not shown in the figure), a limiting disc 210, and a connecting pipe 220. The first connecting head and the connecting pipe 220 are respectively located on both sides of the limiting disc 210. The first connecting head can be inserted into the HSK tool shank 300, and the limiting disc 210 abuts against the end face of the HSK tool shank 300. The limiting disc 210 is connected to the HSK tool shank 300 through a plurality of connecting bolts 211 arranged axially.
[0034] As Figure 1 and Figure 2 shown, the tool head 100 includes a second connecting head 140. The second connecting head 140 is arranged on the side of the first cylindrical body 110 away from the second cylindrical body 120. The second connecting head 140 can be inserted into the connecting pipe 220 and is connected to the intermediate connecting rod 200 through a connecting screw 150 penetrating along the axis of the tool head 100. The second connecting head 140 is provided with a first limiting plane 141 parallel to its axis, and the inner wall of the connecting pipe 220 is provided with a second limiting plane 221 that cooperates with the first limiting plane 141. The two jointly act to limit the relative rotation of the connecting pipe 220 and the second connecting head 140.
[0035] The limiting disc 210 is provided with a plurality of axial adjustment screws 212. The axial adjustment screws 212 penetrate through the limiting disc 210 along the axis of the limiting disc 210, and the plurality of axial adjustment screws 212 are arranged at intervals along the circumference of the limiting disc 210. The axial adjustment screws 212 can finely adjust the position of the tool head 100 in the axial direction, thereby ensuring the machining progress.
[0036] As Figure 2 and Figure 3As shown, the HSK tool holder 300 is provided with a plurality of radial adjustment screws 310. The radial adjustment screws 310 penetrate through the side wall of the HSK tool holder 300 along the radial direction of the HSK tool holder 300 and abut against the inserted first connector. The plurality of radial adjustment screws 310 are arranged at intervals along the circumferential direction of the HSK tool holder 300. A certain movement gap is left between the first connector and the side wall of the HSK tool holder 300. By adjusting the screwing degree of the plurality of radial adjustment screws 310, the position of the tool head 100 in the radial direction can be finely adjusted. Under the combined adjustment of the axial adjustment screw 212 and the radial adjustment screw 310, the tool accuracy is finally ensured to be within 0.001 mm, thus maximizing the avoidance of the accuracy problems caused by the spindle runout of the machine tool and ensuring the processing quality of the product.
[0037] The processing accuracy of the product using the reaming tool 10 provided in this embodiment is improved. After using the reaming tool 10, the process capability CPK of the hole diameters and coaxiality of the two holes D46H7 and D32H7 during the processing process is ≥1.33; the number of workpieces scrapped due to unstable tool and out-of-tolerance dimensions is reduced by 90%; the unit cost of the tool is reduced by 23% compared with the previous integral welding.
[0038] In summary, the embodiment of the present invention provides a reaming tool 10 with a flange structure, which includes a tool head 100. The tool head 100 includes a first columnar body 110 and a second columnar body 120 that are coaxially arranged and integrally formed. The diameter of the first columnar body 110 is greater than that of the second columnar body 120; the first columnar body 110 is provided with a plurality of first blades 111. The plurality of first blades 111 are located on the side close to the second columnar body 120 and are arranged at intervals along the circumferential direction of the first columnar body 110; the second columnar body 120 is provided with a plurality of second blades 121. The plurality of second blades 121 are located on the side away from the first columnar body 110 and are arranged at intervals along the circumferential direction of the second columnar body 120. The reaming tool 10 combines the processing dimensions of two different hole diameters on the same tool head 100, can process two different hole diameters simultaneously, and can well ensure the coaxiality of the product.
[0039] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A flange structure reaming tool, characterized in that: The tool head includes a first columnar body and a second columnar body which are coaxially arranged and integrally formed, wherein the diameter of the first columnar body is larger than that of the second columnar body; the first columnar body is provided with a plurality of first blades, which are located on a side close to the second columnar body and are spaced apart along the circumference of the first columnar body; the second columnar body is provided with a plurality of second blades, which are located on a side away from the first columnar body and are spaced apart along the circumference of the second columnar body.
2. The reaming tool for flange structure according to claim 1, characterized in that: The cutter head is provided with a plurality of chip removal grooves, and the plurality of chip removal grooves are arranged along the axial direction of the cutter head; the first blade and the second blade are both located on the side walls of the chip removal grooves.
3. The reaming tool for flange structure according to claim 2, characterized in that: The number of the chip grooves, the first blades and the second blades are equal, and one chip groove, one first blade and one second blade constitute a chip unit; a plurality of chip units are arranged at intervals along the circumference of the tool head.
4. The reaming tool for flange structure according to claim 3, characterized in that: In each of the chip cutting units, the first blade and the second blade are located on a side wall on the same side of the chip discharge groove.
5. The reaming tool for flange structure according to claim 4, characterized in that: A first inner cooling hole and a second inner cooling hole are arranged at the bottom of the chip removal groove. The first inner cooling hole is arranged close to the first blade, and the second inner cooling hole is arranged close to the second blade.
6. The reaming tool for flange structure according to claim 5, characterized in that: The reaming tool also includes an HSK tool handle and an intermediate connecting rod, and the HSK tool handle, the intermediate connecting rod and the tool head are axially connected in sequence.
7. The reaming tool for flange structure according to claim 6, characterized in that: The intermediate connecting rod includes a first connecting head, a limiting plate and a connecting tube, wherein the first connecting head and the connecting tube are respectively located on both sides of the limiting plate; the first connecting head can be inserted into the HSK tool handle, and the limiting plate abuts against the end surface of the HSK tool handle; the limiting plate is connected to the HSK tool handle by a plurality of connecting bolts arranged along the axial direction.
8. The reaming tool for flange structure according to claim 7, characterized in that: The cutter head includes a second connecting head, which is arranged on a side of the first column away from the second column; the second connecting head can be inserted into the connecting tube and connected to the middle connecting rod via a connecting screw that passes through the axis of the cutter head.
9. The reaming tool for flange structure according to claim 7, characterized in that: The limiting disk is provided with a plurality of axial adjustment screws, and the axial adjustment screws penetrate the limiting disk along the axial direction of the limiting disk, and the plurality of axial adjustment screws are arranged at intervals along the circumferential direction of the limiting disk.
10. The reaming tool for flange structure according to claim 9, characterized in that: The HSK shank is provided with a plurality of radial adjustment screws, which penetrate the side wall of the HSK shank in the radial direction of the HSK shank and abut against the inserted first connector. The plurality of radial adjustment screws are arranged at intervals along the circumference of the HSK shank.