Compound tool for machining turbine shell intermediate connector

Abstract

The utility model discloses a compound cutter for machining a turbine shell intermediate connector, which comprises a cutter body, one end of the cutter body is a clamping end, the center of the other end of the cutter body extends outwards in a cylindrical shape to form a first cutter head, the first cutter head is divided into three sections with the diameters gradually reduced in the length direction, and the first cutter head is divided into four equal parts. Wherein first chip grooves are formed in the two obliquely-symmetrical parts, three blade mounting grooves are rotationally and symmetrically formed in the plane side walls, close to the chip grooves, of the other two parts, first blades are mounted in the blade mounting grooves respectively, and rotationally-symmetrical second tool bits are formed in the positions, towards the two sides of the first tool bit, of the joint of the first tool bit and the tool body. An arc-shaped machining groove is formed in the second tool bit, and second blades are installed on the two sides of the end face of the machining groove. According to the utility model, a plurality of cutters are combined on one cutter, so that the processing efficiency is effectively improved, the loss of the cutters is reduced, and the production cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of machining technology, specifically relating to a composite tool for machining the connection port of a turbine housing intermediate body. Background Technology

[0002] Currently, when machining the connection port of the turbine housing intermediate body, multiple outer diameters, inner diameters, steps, and chamfers are required for machining the connection port. This necessitates the use of multiple different cutting tools for multiple alignment operations, which greatly affects the machining efficiency. Since cutting tools are consumable parts, the use of multiple cutting tools also increases the production cost. Utility Model Content

[0003] The technical problem to be solved by this utility model is to address the shortcomings of the prior art by providing a composite tool for machining the intermediate connection of a turbine housing. It uses multiple inserts on a single tool to machine multiple outer diameters, inner diameters, steps, and chamfers, effectively improving production efficiency.

[0004] The technical solution adopted by this utility model is: a composite tool for machining the connection port of a turbine housing intermediate body, including a tool body, one end of which is a clamping end, and the other end extends outward in a cylindrical shape to form a first cutting head. The first cutting head is divided into three segments with gradually decreasing diameters along its length direction, dividing the first cutting head into four equal parts. Two of the segments are obliquely symmetrical and have first chip removal grooves. The other two segments are symmetrically arranged with three blade mounting grooves on the planar sidewalls near the first chip removal grooves. The three blade mounting grooves are located at the ends of each segment of the three-segment first cutting head. First blades are installed in the blade mounting grooves respectively. The surfaces of the two first blades at both ends are parallel to the surface of the first chip removal groove, and the vertical center line of one of the edges of the first blade in the middle is perpendicular to the surface of the first chip removal groove. Rotationally symmetrical second cutting heads are formed on both sides of the connection between the first cutting head and the tool body. The second cutting heads have arc-shaped machining grooves. Second blades are installed on both sides of the end face of the machining groove. The two first blades and the two second blades are alternately arranged in the same direction of rotation.

[0005] Preferably, a second chip removal groove is formed on the side of the first cutting head near the second cutting blade.

[0006] Preferably, the curvature of the arc-shaped machining groove matches the diameter of the part to be machined.

[0007] The beneficial effects of this utility model are as follows: This utility model combines multiple cutting tools into one cutting tool, which effectively improves processing efficiency, reduces tool wear, and lowers production costs. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the structure of this utility model;

[0009] Figure 2 This is a schematic diagram illustrating the use of this utility model;

[0010] Figure 3 This is a schematic cross-sectional view of the first cutting head of this utility model in use;

[0011] Figure 4 This is a cross-sectional view of the second cutting head of this utility model.

[0012] In the diagram: 1. Tool body; 2. First cutting head; 3. First chip removal groove; 4. First cutting tool; 5. Second cutting head; 6. Machining groove; 7. Second cutting tool; 8. Second chip removal groove. Detailed Implementation

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0014] Example

[0015] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the composite tool for machining the intermediate connection port of the turbine housing provided in this embodiment includes a tool body 1. One end of the tool body 1 is a clamping end, and the other end extends outward in a cylindrical shape to form a first cutting head 2. The first cutting head 2 is divided into three sections, with the diameter decreasing from the inside to the outside. A step is formed between each section, dividing the first cutting head 2 into four parts evenly along the circumference. Three blade mounting slots are provided along the length of the first cutting head 2 on the same spiral plane of two obliquely symmetrical parts. The three blade mounting slots are located at the ends of each section, i.e., one is located at the end face of the first cutting head 2, and the other two are located at the steps formed between each section. A first cutting blade 4 is installed in each blade mounting slot by screws. The first cutting blade 4 has a square cross-section. The first cutting blade 4 has cutting edges on both sides outside the blade mounting slot. The top surfaces of the two first cutting blades 4 at the two ends are parallel to the top surface of the first cutting head 2. The first blade 4, located in the middle, has one of its edges pointing upwards, and the center line of the edge is perpendicular to the axis of the first blade 4. The first cutter head 2, excluding the two parts with blade mounting grooves, has two other parts with first chip removal grooves 3. The first chip removal grooves 3 and the first blade 4 are located on two adjacent and mutually perpendicular sidewalls of the first cutter head 2. Rotationally symmetrical second cutter heads 5 are formed on both sides of the connection between the first cutter head 2 and the cutter body 1. The second cutter head 5 has an arc-shaped machining groove 6, the curvature of which matches the diameter of the workpiece to be machined. Second blades 7 are mounted on both sides of the end face of the machining groove 6. The cross-section of the second blades 7 is square, and the two sides of the second blades 7 outside the blade mounting groove have chip cutting edges. The two first blades 4 and the two second blades 7 are alternately arranged in the same direction of rotation. A second chip removal groove 8 is formed on the side of the first cutter head 2 closest to the second blade 7.

[0016] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any modifications and substitutions based on the technical solutions and utility model concepts provided by the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A composite tool for machining the connection joint of a turbine housing intermediate body, comprising a tool body (1), characterized in that: One end of the blade body (1) is a clamping end, and the other end extends outward in a cylindrical shape to form a first cutting head (2). The first cutting head (2) is divided into three segments with gradually decreasing diameters along its length, dividing the first cutting head (2) into four equal parts. Two of the segments are obliquely symmetrical and have first chip removal grooves (3). The other two segments have three blade mounting grooves that are rotationally symmetrically arranged on the planar sidewalls of the first chip removal grooves (3). The three blade mounting grooves are located at the ends of each segment of the three-segment first cutting head (2). First blades (4) are installed in the blade mounting grooves, two of which are... The surfaces of the two first blades (4) at the ends are parallel to the surface of the first chip groove (3). The vertical center line of one of the corners of the first blade (4) in the middle is perpendicular to the surface of the first chip groove (3). The first cutting head (2) and the cutting body (1) are connected to form a second cutting head (5) with rotational symmetry on both sides of the first cutting head (2). The second cutting head (5) has an arc-shaped machining groove (6). The two cutting heads (6) are equipped with second blades (7) on both sides of the end face of the machining groove (6). The two first blades (4) and the two second blades (7) are alternately arranged in the same direction of rotation.

2. The composite tool for machining the connecting joint of a turbine housing intermediate body according to claim 1, characterized in that: A second chip removal groove (8) is formed on the side of the first cutter head (2) near the second blade (7).

3. A composite cutting tool for machining the connecting joint of a turbine housing intermediate body according to claim 1 or 2, characterized in that: The curvature of the arc-shaped machining groove (6) is matched with the diameter of the part to be machined.

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