Volute machining indexable turning and milling composite sleeve groove cutter
By designing an indexable milling and turning composite grooving tool for machining turbocharger volutes, the problem of tool damage during machining of turbocharger volutes was solved, achieving efficient and stable multi-process machining, improving machining efficiency and reducing costs.
Patent Information
- Application Number
- CN202520284664.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-02-21
AI Technical Summary
In the machining of turbocharger volute housings, existing cutting tools are prone to breakage, wear, and chipping, making it difficult to achieve reasonable tool life replacement, resulting in low machining efficiency, high cost, and unstable machining quality.
Design a composite milling and turning tool for machining volutes, comprising an outer cylindrical insert, a grooving insert, and a countersunk step insert. The machining is completed in one operation through multiple steps. It uses alloy inserts and can be rotated 90 degrees for continued use, reducing the number of tool changes and friction, and improving tool stability.
It enables multi-process machining in one go, reduces tool damage and tool change frequency, improves machining efficiency and quality, and ensures machining accuracy and cost-effectiveness.
Smart Images
Figure CN223748577U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a turbocharger scroll casing machining cutter, concretely relates to a scroll casing machining indexable turning-milling composite sleeve groove cutter. BACKGROUND
[0002] The automobile turbocharger is an important part of high-performance fuel vehicle and hybrid vehicle engine, the turbocharger shell is thin and complex in structure, and the stability and service life of the cutter are challenged in the machining process. The turbocharger material has the advantages of high hardness and good toughness, but the advantages also become the difficulty in machining. The following problems are encountered in the current turbocharger machining:
[0003] (1) the machining of the turbine shell gas outlet flange process is carried out on the turning of the vertical lathe, the coaxiality and perpendicularity quality of the gas outlet flange is high, the shape is complex, the process machining amount is large, the blank allowance is uneven, the cutter is prone to breakage, wear and chipping, which not only affects the quality of machining, but also causes product batch failure if not found in time;
[0004] (2) due to the difficult machinability of the turbine shell material and the blank allowance fluctuation, the cutter rated life is usually set relatively conservative in the machining process, it is difficult to achieve reasonable life tool change through effective way, resulting in cutter waste, frequent tool change, short service life, low efficiency and high cost. CONTENT OF THE UTILITY MODEL
[0005] In order to overcome the above defects, the purpose of the utility model is to provide a scroll casing machining indexable turning-milling composite sleeve groove cutter.
[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0007] A scroll casing machining indexable turning-milling composite sleeve groove cutter, comprising a cutter body, an axial hole is formed in the center of the cutter body, two cutting parts are uniformly arranged on the end face of the axial hole, the cutting part comprises a cutting block arranged on the end face of the axial hole, the cutting block is provided with a first stepped block, a second stepped block and a third stepped block close to the end face of the axial hole, a positioning groove is formed in the first stepped block, a cutting groove blade is arranged in the positioning groove, a counter-bore stepped surface blade is arranged on the second stepped block, and a sleeve outer circle blade is arranged on the third stepped block.
[0008] Preferably, the cutter body material is hot-pressed die steel.
[0009] Preferably, the sleeve outer circle blade and the counter-bore stepped surface blade are both alloy blades.
[0010] Preferably, the sleeve outer circle blade and the counter-bore stepped surface blade both comprise four cutting edges.
[0011] The utility model has the following positive beneficial effects:
[0012] The utility model provides a kind of vortex shell machining indexable turning-milling composite sleeve groove cutter, first sleeve outer circle blade cutting vortex shell outer circle face, then cutting groove blade cutting machining end surface groove, finally tamping step surface blade carries out tamping surface processing to step plane, sleeve outer circle processing, sleeve end surface groove, tamping round step surface one-time processing, a cutter can complete multiple-process processing, not easy to break knife, wear and tear and collapse blade, reduce tool changing time, improve processing efficiency, ensure vortex shell processing quality.In addition, cutting groove blade both ends are provided with blade, wear and exchange use, reduce cost;If sleeve outer circle blade and tamping step surface blade are damaged, sleeve outer circle blade and tamping step surface blade are all used SP coating alloy blade, including four blades, without being detached from the tool on the main shaft, because the tolerance of alloy blade is smaller, positioning is accurate, can continue to process after directly rotating 90 degrees to blade, without retooling, greatly improve the processing efficiency, while also guarantee the concentricity and perpendicularity of sleeve circle, sleeve groove, tamping step surface, processing precision is high, adjustment is simple, maintenance is convenient, light in weight, can match different machine tool main shaft cutter weight requirement. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is vortex shell machining indexable turning-milling composite sleeve groove cutter structural schematic diagram of the utility model;
[0014] Figure 2 It is vortex shell machining indexable turning-milling composite sleeve groove cutter working state schematic view of the utility model;
[0015] Figure 3 It is vortex shell structure schematic view;
[0016] In the drawing: 1, tool body, 2-axis hole, 3, cutting groove blade, 4. tamping step surface blade, 5, sleeve outer circle blade, 6-cutting block, 7-first step block, 8-second step block, 9-third step block, 10-positioning groove. DETAILED DESCRIPTION
[0017] The utility model is further described below in connection with some specific embodiments.
[0018] Example 1
[0019] Reference Figure 1 And Figure 2The utility model provides a kind of vortex shell processing indexable milling composite sleeve groove cutter, including tool body 1, the shaft hole 2 of being centrally provided in tool body 1, reduce the weight of tool body, two cutting parts are uniformly arranged on the end face of shaft hole 2, cutting part includes the cutting block 6 being arranged on the end face of shaft hole 2, cutting block 6 is close to the first step block 7, second step block 8 and third step block 9 being arranged on the end face of shaft hole 2, first step block 7, second step block 8, third step block 9 are arranged in ladder, first step block 7 is opened positioning groove 10, positioning groove 10 is arranged with cutting groove blade 3, second step block 8 side is arranged with dimpling step surface blade 4, third step block 9 side is arranged with sleeve outer circle blade 5, three kinds of blades arranged in ladder, satisfy sleeve outer circle processing, sleeve end surface groove, dimpling circular step surface one-time processing.Two cutting parts on sleeve outer circle blade 2, cutting groove blade 3 and dimpling step surface blade 4 are arranged in opposite position, guarantee that vortex shell is uniformly cut by tool, reduce cutting resistance.Cutting groove blade 3 and positioning groove 10, dimpling step surface blade 4 and second step block 8, sleeve outer circle blade 5 and third step block 9 are all detachably connected by bolt hole and bolt, it is convenient to replace blade. Figure 2 And Figure 3 When processing, tool body 1 moves from top to bottom, sleeve outer circle blade 5 is inserted in milling linear feed on processing center, cutting vortex shell outer circle surface, then cutting groove blade 3 is cut on vortex shell end surface and processes end surface groove, finally dimpling step surface blade 4 carries out dimpling surface processing to step plane.
[0020] Further, tool body 1 adopts integral BT50 tool handle, and the material is SKD61 hot die casting die steel, which is high in hardness and can provide strong support for tool body.
[0021] Further, sleeve outer circle blade 5 and dimpling step surface blade 4 both adopt SP coating alloy blade, which is sharp in blade edge, can uniformly and smoothly discharge chips, is higher in hardness, good in toughness, effectively reduces friction and loss, is durable and wear-resistant, and is economical and efficient.
[0022] Further, sleeve outer circle blade 5 and dimpling step surface blade 4 both include four cutting edges, and if the blade is damaged, the tool does not need to be detached from the main shaft, because the tolerance of the alloy blade is small and positioning is accurate, the blade can be directly rotated by 90 degrees for continuous processing without retooling, so that the processing efficiency is greatly improved.
[0023] Further, cutting groove blade 3 adopts GRIP 4004Y IC808 groove cutter, and both ends of the cutting groove blade 3 are provided with cutting edges, which can be replaced for use after wear, thereby reducing cost.
[0024] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the utility model and not to limit, and other modifications or equivalent replacements to the technical solutions of the utility model made by ordinary skilled in the art should be covered in the scope of claims of the utility model.
Claims
1. A type of indexable turning and milling composite grooving tool for machining volutes, characterized in that, The tool includes a cutter body (1), with a central hole (2) at the center of the cutter body (1). Two cutting sections are evenly arranged on the end face of the central hole (2). The cutting section includes a cutting block (6) arranged on the end face of the central hole (2). A first step block (7), a second step block (8), and a third step block (9) are arranged on the end face of the cutting block (6) near the central hole (2). A positioning groove (10) is opened on the first step block (7). A grooving blade (3) is arranged in the positioning groove (10). A countersinking step blade (4) is arranged on the second step block (8). An outer circle blade (5) is arranged on the third step block (9).
2. The indexable turning and milling composite grooving tool for machining volutes according to claim 1, characterized in that, The blade body (1) is made of hot-working die-casting mold steel.
3. The indexable turning and milling composite grooving tool for machining volutes according to claim 1, characterized in that, Both the outer cylindrical blade (5) and the countersunk step blade (4) are made of alloy blades.
4. The indexable turning and milling composite grooving tool for machining volutes according to claim 3, characterized in that, Both the outer cylindrical blade (5) and the countersunk step blade (4) include four cutting edges.