CN219211761U

CN219211761U - Deep hole ring channel processing tool

Info

Publication number: CN219211761U
Application number: CN202223485180.6U
Authority: CN
Inventors: 张丽娟; 黄振孜; 宗进; 李尧; 徐飞; 李鹏飞
Original assignee: Jiangxi Hongdu Aviation Industry Group Co Ltd
Current assignee: Jiangxi Hongdu Aviation Industry Group Co Ltd
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-06-20
Anticipated expiration: 2032-12-26

Abstract

The utility model discloses a deep hole annular groove processing tool which comprises an extension rod and a grooving cutter, wherein the grooving cutter comprises a grooving cutter body and a grooving cutter blade, the extension rod is a cylindrical step rod, the large end of the extension rod is a clamping end, the small end of the extension rod is a cutter body mounting end, a cutter body mounting groove is formed in the cutter body mounting end, one end of the grooving cutter body is detachably mounted in the cutter body mounting groove, and the other end of the grooving cutter body is provided with the grooving cutter blade. The utility model solves the problems of high processing difficulty of the annular groove at the deep hole and high cost of the custom cutter, has high processing efficiency and good universality, can be simultaneously suitable for processing the annular groove of the deep hole with various specifications, can effectively adapt to the annular groove characteristics of different specifications when the tool is used for processing the annular groove of the deep hole, and can greatly reduce the processing cost once the cutter body of the grooving cutter is damaged and can be replaced by a common cutter body with common specifications.

Description

Deep hole ring channel processing tool

Technical Field

The utility model relates to a machining tool for turning, in particular to a deep hole annular groove machining tool.

Background

At present, part of novel buffers are designed on the root of an outer cylinder to be provided with sealing grooves, so that a core rod is used for replacing a floating piston to perform fixed sealing, or a lightening groove is additionally arranged in a non-working area of the root of a piston rod, so that the weight of the buffer can be effectively reduced under the condition of ensuring the strength of a product, but the similar annular groove characteristics at a deep hole often bring greater difficulty to mechanical processing.

In the past, to the deep hole ring channel characteristic of above-mentioned type need the customization to correspond the shock attenuation lathe tool of specification and process, but the cutter commonality of customization is not strong, and the price is expensive, once the design changes and causes higher waste easily, therefore, need to improve to prior art.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a deep hole annular groove processing tool.

The technical scheme of the utility model is as follows:

the utility model provides a deep hole ring channel processing tool, includes extension bar and grooving cutter, the grooving cutter includes grooving cutter body and grooving cutter blade, the extension bar is cylindric ladder pole, and the main aspects of extension bar are the centre gripping end, and the tip is cutter body installation end, be equipped with cutter body mounting groove in the cutter body installation end, the one end detachable of grooving cutter body installs in cutter body mounting groove, and the other end of grooving cutter body is equipped with grooving cutter blade.

Preferably, the cutter body mounting groove is of a U-shaped structure, the cutter body mounting groove is provided with openings in two directions, one opening is formed in the end face of the cutter body mounting end, the other opening is formed in the annular side face of the cutter body mounting end, a milling plane matched with the inner side wall of the cutter body mounting groove is arranged on the grooving cutter body, at least two bolt holes are formed in the milling plane, mounting holes corresponding to the bolt holes are respectively formed in the two side walls of the cutter body mounting groove, and the grooving cutter body is mounted in the cutter body mounting groove through fixing bolts and fixing nuts.

Preferably, the mounting hole is a counter bore.

Preferably, the length-diameter ratio of the cutter body mounting end is controlled within 10.

The utility model has the beneficial effects that:

1. the problem of deep hole department ring channel processing degree of difficulty is big, and custom cutter expense is high is solved, and not only machining efficiency is high but also the commonality is good, can be applicable to the deep hole ring channel processing of multiple specification simultaneously.

2. When the tool is used for processing deep hole annular grooves, the tool can effectively adapt to the annular groove characteristics of different specifications, and the grooving tool body is a common tool body with common specifications, once damaged, the grooving tool body can be replaced, so that the processing cost can be greatly reduced, the cost reduction and synergy are always core targets of development of manufacturing enterprises when the manufacturing industry is in competition day by day, and the tool can greatly reduce the custom tool, thereby being more suitable for the development trend of the manufacturing industry of flexible production.

Drawings

FIG. 1 is a schematic view of a preferred embodiment of the present utility model;

FIG. 2 is an exploded view of a preferred embodiment of the present utility model;

FIG. 3 is a schematic drawing of a machining tool of the present utility model on a numerically controlled machine tool;

FIG. 4 is a schematic view of the working state of the working tool of the present utility model with text description and partial labeling inside the part;

in the figure: the machining tool comprises an extension rod 1, a grooving tool 2, a grooving tool body 3, a fixing bolt 4, a grooving tool blade 5, a fixing nut 6, a clamping end 11, a mounting end 12, a mounting groove 13, a mounting hole 14, a milling plane 31, a bolt hole 32, a numerical control lathe 100, a three-jaw chuck 101, a center frame 102, a tool rest 103 and a part 104 to be machined.

Detailed Description

The present utility model will be further described by way of the following examples, however, the scope of the present utility model is not limited to the following examples.

Example 1: referring to fig. 1 and 2, the deep hole annular groove machining tool mainly comprises an extension bar 1 and a grooving cutter 2, the grooving cutter 2 is a replaceable component, the grooving cutter 2 comprises a grooving cutter body 3 and a grooving cutter blade 5, the extension bar 1 is a cylindrical ladder bar, the large end of the extension bar 1 is a clamping end 11 and is used for being connected with a cutter rest 103 on a numerically controlled lathe 100, the small end of the extension bar is a cutter body mounting end 12, the cutter body mounting end 12 is used for mounting the grooving cutter body 3, a cutter body mounting groove 13 is formed in the cutter body mounting end 12, one end of the grooving cutter body 3 is detachably mounted in the cutter body mounting groove 13, the grooving cutter blade 5 is arranged at the other end of the grooving cutter body 3, the grooving cutter body 3 and the grooving cutter blade 5 can be selected according to requirements, in this embodiment, the grooving cutter body 3 and the grooving cutter blade 5 can be replaced according to requirements, and in general cases, the grooving cutter body can be replaced when necessary, and the grooving cutter body needs to be changed (upper milling plane 31 and lower milling bolt hole 32).

Further, cutter body mounting groove 13 is U-shaped structure, and cutter body mounting groove 13 has the opening of two directions, and one of them opening is offered at the terminal surface of cutter body installation end 12, and the annular side at cutter body installation end 12 is offered to another opening, milling plane 31 that has on the grooving cutter body 3 and cutter body mounting groove 13 inside wall match has two at least bolt holes 32 on the milling plane 31, grooving cutter body 3 is located and is equipped with respectively on the both sides wall of cutter body mounting groove 13 the mounting hole 14 of bolt hole 32, and grooving cutter body 3 passes through fixing bolt 4 and fixation nut 6 and installs in cutter body mounting groove 13, has set up 3 bolt holes 32 on the milling plane 31 in this implementation, and milling plane 31 can prevent grooving cutter body 3 rotation, dislocation in cutter body mounting groove 13, prevents that the installation is unstable.

Further, the mounting hole 14 is a countersunk hole, and the countersunk hole can prevent the bolt head from being exposed, so that interference with the inner wall of the part or scratching of the inner wall of the part during processing can be prevented.

Further, in order to avoid vibration during processing, the length-diameter ratio of the cutter body mounting end 12 is controlled within 10.

The deep hole annular groove processing tool needs to be used in combination with a numerical control lathe, firstly, deep holes are processed, then a cutter is replaced by a grooving cutter 2, the annular groove features are processed by utilizing the linear interpolation and circular interpolation functions of the numerical control lathe, and the specific processing process is as follows:

1. referring to fig. 3, the tool of the present utility model is mounted on a tool holder of a numerically controlled lathe (in the case of a turret-equipped numerically controlled lathe, the tool may be mounted in a collet); clamping the part on a machine tool, correcting, and then aligning the original point of the program;

2. turning the bottom of the inner hole of the part 104 to be processed to the highest point of the ring groove by using an inner hole turning tool;

3. the numerical control program is called to process the annular groove features (referring to fig. 4, the rough machining adopts a cutter-by-cutter cutting mode, a certain margin is reserved for the whole body, and then linear interpolation and circular interpolation are utilized to process the inner groove profile), so long as the conditions of L2> L1, L4> L3 and D2< D1 are met on the premise that the extension rod 1 is long enough and does not interfere with the side wall of the deep hole during movement, the tool can process the corresponding annular groove features.

While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The deep hole annular groove processing tool comprises an extension rod (1) and a grooving cutter (2), wherein the grooving cutter (2) comprises a grooving cutter body (3) and a grooving cutter blade (5), the deep hole annular groove processing tool is characterized in that the extension rod (1) is a cylindrical stepped rod, the large end of the extension rod (1) is a clamping end (11), the small end of the extension rod is a cutter body installation end (12), a cutter body installation groove (13) is arranged in the cutter body installation end (12), one end of the grooving cutter body (3) is detachably arranged in the cutter body installation groove (13), the other end of the grooving cutter body (3) is provided with the grooving cutter blade (5), the cutter body installation groove (13) is of a U-shaped structure, the cutter body installation groove (13) is provided with openings in two directions, one opening is formed in the end face of the cutter body installation end (12), the other opening is formed in the annular side face of the cutter body installation end (12), a milling plane (31) matched with the inner side wall of the cutter body installation groove (13), at least two cutter bodies (32) are arranged on the milling plane (31), the two cutter bodies (32) are arranged on the two sides of the cutter body (14) corresponding to the bolt hole installation groove (13), the grooving cutter body (3) is arranged in the cutter body mounting groove (13) through the fixing bolt (4) and the fixing nut (6).

2. A deep hole annular groove processing tool according to claim 1, characterized in that the mounting hole (14) is a counter bore.

3. A deep hole annular groove processing tool according to claim 1, characterized in that the aspect ratio of the cutter body mounting end (12) is controlled within 10.