Eccentric reducing sleeve and cutter device for shaft tooth deep hole end face groove machining

Abstract

The utility model discloses an eccentric reducing sleeve for shaft tooth deep hole end face groove machining and a cutter device, and belongs to the technical field of machining cutters. The eccentric reducing sleeve is of a cylindrical structure which is axially and eccentrically provided with a through hole, and the through hole is used for installing the cutter bar. A threaded hole is formed in the radial direction, located on one side of the through hole, of the eccentric reducing sleeve, and a connecting piece stretches into the threaded hole to fix the cutter bar. The technical problem that when disc tooth type parts with deep end face grooves are machined, the cutter head interferes with the parts is solved. The utility model discloses a cutter device using the eccentric reducing sleeve for shaft tooth deep hole end face groove machining, a cutter bar is a lengthened damping cutter bar, and the technical problem that when disc tooth type parts with deep end face grooves are machined, a cutter head interferes with the parts is further solved. Meanwhile, the problem that the machining precision is not high due to the fact that the cutter bar is lengthened and the rotating speed is low is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of machining tools, and relates to an eccentric adapter sleeve and a tool device for machining deep hole end face grooves of shaft gears. Background Art

[0002] With the popularization of electro-hydraulic products, there are more and more integrated gear and shaft parts, and the processing precision requirements are getting higher and higher. For gear and shaft parts (integrated shaft and disc parts), the middle position of the shaft is the disc gear. For example, a certain gear and shaft part has a maximum outer diameter of φ185, an end face groove diameter of φ145-φ64, a groove inner hole roughness requirement of Ra0.8, and a distance of 217mm between the end face groove and the shaft end face. Due to the limited groove space, the radial space on one side is only 40.5mm, and the end face groove is long from the shaft end face, so there are requirements for the tool diameter and tool length during processing. If the tool bar is short, the tool disc where the tool is installed will interfere with the part, and the part cannot be processed. If the tool bar is long, the tool rigidity is poor, the part will have chatter marks, and the appearance is unqualified; the tool bar rigidity is poor, the speed is low, and the roughness cannot meet the part requirements. For example, the Chinese invention patent application numbered 201911422863.7, "Vibration Reduction Method for Extended Tool Bar for Turning", uses an extended tool bar for turning long thin-walled cylindrical parts, and wraps the extended tool bar part with a soft wrapping material wrapped around the outside of the extended tool bar. The thickness of the wrapped material depends on the distance between the lathe tool holder and the part to be processed, with the principle of no interference. However, it plays a very limited role in solving the technical problem of interference between the tool and the part to be processed under the condition of small unilateral radial space. Utility Model Content

[0003] The utility model aims to solve the technical problem that machining tools in the prior art cannot meet the special structural machining of gear shaft parts, and provides an eccentric adapter sleeve and a tool device for machining deep hole end face grooves of shaft gears.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] In a first aspect, the utility model provides an eccentric adapter sleeve for machining deep hole end face grooves of shaft gears. The eccentric adapter sleeve is a cylindrical structure with a through hole eccentrically arranged in the axial direction, and the through hole is used to install a tool rod.

[0006] The utility model is further improved in that:

[0007] The eccentric adapter sleeve is provided with a threaded hole on one side of the through hole in the radial direction, and the threaded hole is used for a connecting piece to extend into and fix the knife rod.

[0008] The eccentric adapter sleeve is provided with a threaded through hole in the radial direction, and the threaded through hole is used for the connecting piece to extend into the fixed knife rod.

[0009] The material of the eccentric adapter sleeve is high speed steel, alloy steel or hard alloy.

[0010] In the second aspect, the utility model provides a tool device using the above-mentioned eccentric adapter sleeve for machining deep hole end face grooves of shaft gears, comprising a cutter disc, the cutter disc is fixedly connected to the eccentric adapter sleeve, the eccentric adapter sleeve is fixedly connected to a tool rod, and the tool rod is fixedly connected to a tool.

[0011] Further improvements are:

[0012] The tool rod is an extended shock-absorbing tool rod, and the length of the extended shock-absorbing tool rod matches the depth of the end face groove of the disc tooth to be processed.

[0013] A vibration absorbing device is installed inside the lengthened shock-absorbing knife rod.

[0014] The tool comprises a boring tool and a rolling tool.

[0015] The cutter disc is fixedly connected with an eccentric adapter sleeve via a connecting piece.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The utility model discloses an eccentric adapter sleeve for machining deep hole end face grooves of shaft gears, which is a cylindrical structure with a through hole eccentrically arranged in the axial direction, and solves the technical problem of interference between a cutter disc and parts when machining disc gear parts with deep end face grooves.

[0018] Furthermore, threaded holes are provided on one or both sides of the through hole in the radial direction of the eccentric adapter sleeve, and a connecting piece is inserted into the through hole to fix the knife rod fixed in the through hole, which is easy to operate.

[0019] Furthermore, the material of the eccentric adapter sleeve is high-speed steel, alloy steel and cemented carbide, all of which have the advantages of high strength and low cost.

[0020] The utility model discloses a tool device using the above-mentioned eccentric adapter sleeve for machining deep hole end face grooves of shaft gears, wherein the tool bar is an extended shock-absorbing tool bar, which further solves the technical problem of interference between the tool disc and the parts when machining disc gear parts with deep end face grooves. At the same time, it solves the problem of low machining accuracy due to the lengthened tool bar and low rotation speed.

[0021] Furthermore, the tool comprises a boring tool and a rolling tool. After the boring tool is used for primary processing, the rolling tool can be used for secondary processing to meet the required roughness. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the 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 utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a structural schematic diagram of an eccentric adapter sleeve of a tool device for machining a deep hole end face groove of a shaft gear in the utility model;

[0024] Figure 2 It is a side view of an eccentric adapter sleeve of a tool device for machining a deep hole end face groove of a shaft gear in the utility model;

[0025] Figure 3 The utility model is a schematic diagram of the working of a tool device used for machining a deep hole end face groove of a shaft gear.

[0026] Among them: 1-tool; 2-extended shock-absorbing tool rod; 3-tool disc; 4-workpiece fixture; 5-disc teeth to be processed; 6-eccentric adapter sleeve. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0030] In the description of the embodiments of the present utility model, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use, it is only for the convenience of describing the utility model 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 utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0031] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0032] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] The utility model is further described in detail below with reference to the accompanying drawings:

[0034] Example 1

[0035] See also Figure 2 The utility model discloses an eccentric adapter sleeve for machining deep hole end face grooves of shaft gears. The eccentric adapter sleeve 6 is a cylindrical structure with a through hole eccentrically arranged in the axial direction. The through hole is used to install a tool bar. The eccentric adapter sleeve 6 is provided with a threaded hole radially located on one side of the through hole. The threaded hole is used for a connector to extend into and fix the tool bar. The material of the eccentric adapter sleeve 6 is high-speed steel, alloy steel or cemented carbide.

[0036] See also Figure 3The utility model discloses a tool device using the above-mentioned eccentric adapter sleeve for machining the end face groove of the deep hole of the shaft gear, comprising a cutter disc 3, the cutter disc 3 is fixedly connected with an eccentric adapter sleeve 6, the eccentric adapter sleeve 6 is fixedly connected with a tool rod, and the tool rod is fixedly connected with a tool 1. The tool rod is an extended shock-absorbing tool rod 2, and the length of the extended shock-absorbing tool rod 2 matches the depth of the end face groove of the disc tooth 5 to be machined. A vibration absorbing device is installed inside the extended shock-absorbing tool rod 2. The tool 1 includes a boring tool. The cutter disc 3 is fixedly connected with the eccentric adapter sleeve 6 through a connecting piece. The disc tooth 5 to be machined is fixed on the workpiece fixture 4.

[0037] Example 2

[0038] See also Figure 1 and Figure 2 The utility model discloses an eccentric adapter sleeve for machining deep hole end face grooves of shaft gears. The eccentric adapter sleeve 6 is a cylindrical structure with a through hole eccentrically arranged in the axial direction, and the through hole is used to install a tool bar. The eccentric adapter sleeve 6 is provided with a threaded through hole in the radial direction, and the threaded through hole is used for a connector to extend into and fix the tool bar. The material of the eccentric adapter sleeve 6 is high-speed steel, alloy steel or cemented carbide.

[0039] See also Figure 3 The utility model discloses a tool device using the above-mentioned eccentric adapter sleeve for machining the end face groove of the deep hole of the shaft gear, comprising a cutter disc 3, the cutter disc 3 is fixedly connected with an eccentric adapter sleeve 6, the eccentric adapter sleeve 6 is fixedly connected with a tool rod, and the tool rod is fixedly connected with a tool 1. The tool rod is an extended shock-absorbing tool rod 2, and the length of the extended shock-absorbing tool rod 2 matches the depth of the end face groove of the disc tooth 5 to be machined. A vibration absorbing device is installed inside the extended shock-absorbing tool rod 2. The tool 1 is a rolling cutter. The cutter disc 3 is fixedly connected with the eccentric adapter sleeve 6 through a connecting piece. The disc tooth 5 to be machined is fixed on the workpiece fixture 4.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An eccentric adapter sleeve for machining deep hole end face grooves of shaft gears, characterized in that: The eccentric adapter sleeve (6) is a cylindrical structure with a through hole eccentrically arranged in the axial direction, and the through hole is used to install the knife rod; the eccentric adapter sleeve (6) is provided with a threaded hole radially located on one side of the through hole, and the threaded hole is used for a connecting piece to extend into and fix the knife rod.

2. The eccentric adapter sleeve for machining deep hole end face grooves of shaft gears according to claim 1, characterized in that: The eccentric adapter sleeve (6) is provided with a threaded through hole in the radial direction, and the threaded through hole is used for a connecting piece to extend into and fix the knife rod.

3. The eccentric adapter sleeve for machining deep hole end face grooves of shaft gears according to claim 1, characterized in that: The material of the eccentric adapter sleeve (6) is high-speed steel, alloy steel or hard alloy.

4. A tool device using an eccentric adapter sleeve for machining a deep hole end face groove of a shaft gear according to any one of claims 1 to 3, characterized in that: It comprises a cutter disc (3), wherein the cutter disc (3) is fixedly connected to an eccentric adapter sleeve (6), wherein the eccentric adapter sleeve (6) is fixedly connected to a cutter rod, and wherein the cutter rod is fixedly connected to a cutter (1).

5. The tool device of the eccentric adapter sleeve for machining the deep hole end face groove of the shaft gear according to claim 4, characterized in that: The tool rod is an extended shock-absorbing tool rod (2), and the length of the extended shock-absorbing tool rod (2) matches the depth of the end face groove of the disc tooth (5) to be processed.

6. The tool device of the eccentric adapter sleeve for machining the deep hole end face groove of the shaft gear according to claim 5, characterized in that: A vibration absorbing device is installed inside the extended shock-absorbing blade rod (2).

7. The tool device of the eccentric adapter sleeve for machining the deep hole end face groove of the shaft gear according to claim 6, characterized in that: The tool (1) comprises a boring tool and a rolling tool.

8. The tool device of the eccentric adapter sleeve for machining the deep hole end face groove of the shaft gear according to claim 4, characterized in that: The cutter disc (3) is fixedly connected to an eccentric adapter sleeve (6) via a connecting piece.

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