Rudder parts deep hole processing auxiliary device and processing method

Abstract

The application belongs to the field of deep hole machining, and particularly relates to a rudder part deep hole machining auxiliary device and a rudder part deep hole machining method, which aims to improve the deep hole machining efficiency and machining precision. The rudder part deep hole machining auxiliary device comprises a rotating base, one end of the rotating base is fixedly connected with a machine tool rotary table in an axial direction, and the other end is provided with a positioning module in a convex manner, the positioning module is located in a side area of a central axis of the rotating base as a whole; a drilling guide sleeve, a reaming guide sleeve and a reaming guide sleeve are fixedly arranged on the positioning module, the axes of the drilling guide sleeve, the reaming guide sleeve and the reaming guide sleeve are arranged along the radial direction of the rotating base, one set of drilling guide sleeves, one set of reaming guide sleeves and one set of reaming guide sleeves constitute a hole machining guide assembly, and the axes of the drilling guide sleeve, the reaming guide sleeve and the reaming guide sleeve corresponding to each hole machining guide assembly are located on the same radial section of the rotating base and are arranged in a circumferential interval along the rotating base.

Description

Technical Field

[0001] This invention belongs to the field of deep hole machining, specifically relating to an auxiliary device for deep hole machining of rudder parts and a method for deep hole machining of rudder parts. Background Technology

[0002] Rudder-type parts are common components in aerospace and marine products, and many require deep hole machining. These deep holes work in conjunction with precision shafts to achieve the product's functionality. Due to the large batch size and high usage of these products, the stability of deep hole machining quality is particularly important. The main forming indicators include tooling positioning reliability, deep hole diameter stability, and deep hole surface quality stability.

[0003] Machining the same hole typically involves multiple processes, including drilling, reaming, and boring. Due to the considerable depth of the hole, guide sleeves are usually required. In traditional machining methods, the workpiece fixture is directly mounted on the machine tool turntable, and a replaceable drilling guide sleeve is fitted onto the fixture with a clearance fit. After drilling, the drilling guide sleeve is manually replaced with a reaming guide sleeve, and after reaming, it is manually replaced with a boring guide sleeve. This repeated disassembly and reassembly of the guide sleeve results in low overall machining efficiency, hindering mass production and leading to lower machining accuracy. Summary of the Invention

[0004] This invention provides an auxiliary device for deep hole machining of rudder-type parts, which can effectively improve the efficiency and accuracy of deep hole machining.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a deep hole machining auxiliary device for rudder-type parts, including a rotating base, one end of which has a turntable connection structure for fixed connection with a machine tool turntable, and the other end has a protruding positioning module; the positioning module is eccentrically arranged relative to the rotating base, and the entire positioning module is located in the side area of ​​the central axis of the rotating base; a drilling guide sleeve, a reaming guide sleeve, and a boring guide sleeve are fixedly arranged on the positioning module, the axes of the drilling guide sleeve, the reaming guide sleeve, and the boring guide sleeve are all arranged radially along the rotating base, a set of drilling guide sleeves, a set of reaming guide sleeves, and a set of boring guide sleeves constitute a hole machining guide assembly for machining the same hole, and the axes of the drilling guide sleeve, the reaming guide sleeve, and the boring guide sleeve corresponding to each hole machining guide assembly are located on the same radial section of the rotating base and are arranged at intervals along the circumference of the rotating base.

[0006] A further preferred option is: the positioning module provides a drilling guide sleeve mounting through hole for each group of drilling guide sleeves, and both ends of the drilling guide sleeve mounting through hole are stepped holes A, with the drilling guide sleeve set inside the stepped holes A.

[0007] A further preferred option is: the positioning module provides a through hole for mounting the reamer guide sleeve for each group of reamer guide sleeves, and both ends of the through hole for mounting the reamer guide sleeve are stepped holes B, with the reamer guide sleeve set inside the stepped holes B.

[0008] A further preferred embodiment is: the positioning module provides a through hole for mounting the reamer guide sleeve for each group of reamer guide sleeves, and both ends of the through hole for mounting the reamer guide sleeve are stepped holes C, with the reamer guide sleeve set inside the stepped holes C.

[0009] Based on the aforementioned auxiliary device for deep hole machining of rudder parts, this invention also provides a method for deep hole machining of rudder parts. The workpiece surface has a groove, and the hole to be machined penetrates both side walls of the groove. Each hole to be machined on the coaxial axis includes a first section hole located on one side of the groove and a second section hole located on the other side of the groove. The method is characterized in that, before machining, a rotating base is fixedly connected to a machine tool turntable, and the workpiece is fixed using an independently set fixture, allowing a positioning module to extend into the groove of the workpiece. The positioning module can rotate within the groove as the rotating base rotates. The machining process includes the following steps:

[0010] Drill the center hole at the front end of the first section of holes; Drill the first section of holes.

[0011] Use the machine tool rotary table to rotate the drilling guide sleeve to a position aligned with the axis of the first hole, and then drill the second hole;

[0012] Enlarge the front guide hole of the first section hole, and enlarge the first section hole;

[0013] Use the machine tool rotary table to rotate the reaming guide sleeve to a position aligned with the axis of the first section of the hole, and then ream the second section of the hole;

[0014] The guide hole at the front end of the first section of the hole is reamed; the first section of the hole is reamed.

[0015] Use the machine tool turntable to rotate the reaming guide sleeve to a position aligned with the axis of the first hole, and then ream the second hole.

[0016] The beneficial effects of the present invention are as follows: As can be seen from the specific process steps involved in the above processing method, the present invention only requires one clamping and fixing in specific implementation, and there is no process of repeated disassembly and assembly of the guide sleeve. The overall processing efficiency is high, which is conducive to mass production, and the processing accuracy can be effectively guaranteed. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of the present invention during implementation (the arrow in the diagram indicates the rotation direction of the machine tool turntable);

[0018] Figure 2 yes Figure 1 Top view;

[0019] Figure 3 yes Figure 1 Side view.

[0020] The components in the diagram are labeled as follows: Rotating base 1, Positioning module 2, Drilling guide sleeve 3, Reaming guide sleeve 4, Boring guide sleeve 5, Workpiece 6, Groove 7, Machine tool body 8. Detailed Implementation

[0021] The invention will now be further described with reference to the accompanying drawings.

[0022] like Figures 1 to 3 As shown, the deep hole machining auxiliary device for rudder-type parts of the present invention includes a rotating base 1. One axial end of the rotating base 1 has a turntable connection structure for fixed connection with a machine tool turntable, and the other end has a protruding positioning module 2. The positioning module 2 is eccentrically arranged relative to the rotating base 1, and the entire positioning module 2 is located in the side region of the central axis of the rotating base 1. That is, relative to the radial section of the rotating base 1, the entire positioning module 2 and the central axis of the rotating base 1 are spaced apart. This arrangement of the positioning module 2 allows it to be positioned close to the workpiece as the machine tool turntable rotates. 6. They do not affect each other; the positioning module 2 is fixedly equipped with a drilling guide sleeve 3, a reaming guide sleeve 4 and a boring guide sleeve 5. The axes of the drilling guide sleeve 3, the reaming guide sleeve 4 and the boring guide sleeve 5 are all arranged along the radial direction of the rotating base 1. A set of drilling guide sleeves 3, a set of reaming guide sleeves 4 and a set of boring guide sleeves 5 constitute a hole processing guide assembly for processing the same hole. The axes of the drilling guide sleeve 3, the reaming guide sleeve 4 and the boring guide sleeve 5 corresponding to each hole processing guide assembly are located on the same radial section of the rotating base 1 and are arranged at intervals along the circumference of the rotating base 1.

[0023] The fixed connection between the rotating base 1 and the machine tool turntable can be implemented with reference to existing technologies, such as tie rod connection, flange connection, etc. The fixing method of each guide sleeve can be implemented according to the conventional fixed sleeve and shaft hole connection method. Each group of guide sleeves can adopt an integral design or a segmented design. For ease of assembly and positioning, this invention adopts a segmented design. The positioning module 2 is provided with a drilling guide sleeve mounting through hole for each group of drilling guide sleeves 3. Both ends of the drilling guide sleeve mounting through hole are stepped holes A, and the drilling guide sleeves 3 are respectively set in the stepped holes A. The positioning module 2 is provided with a reaming guide sleeve mounting through hole for each group of reaming guide sleeves 4. Both ends of the reaming guide sleeve mounting through hole are stepped holes B, and the reaming guide sleeves 4 are respectively set in the stepped holes B. The positioning module 2 is provided with a reaming guide sleeve mounting through hole for each group of reaming guide sleeves 5. Both ends of the reaming guide sleeve mounting through hole are stepped holes C, and the reaming guide sleeves 5 are respectively set in the stepped holes C.

[0024] It is understandable that the order of the drilling guide sleeve 3, reaming guide sleeve 4, and boring guide sleeve 5 located on the same radial section of the rotating base 1 is not specifically required, as long as rotational switching can be achieved. However, since the machining sequence of the holes is drilling, reaming, and boring, in order to improve machining efficiency, the preferred arrangement is that the drilling guide sleeve 3, reaming guide sleeve 4, and boring guide sleeve 5 are arranged in the circumferential direction, either clockwise or counterclockwise.

[0025] Based on the aforementioned auxiliary device for deep hole machining of rudder parts, this invention also provides a method for deep hole machining of rudder parts. The workpiece 6 has a groove 7 on its surface, and the hole to be machined penetrates both side walls of the groove 7. Each hole to be machined along the coaxial axis includes a first section hole located on one side of the groove 7 and a second section hole located on the other side of the groove 7. The method is characterized in that, before machining, the rotating base 1 is fixedly connected to the machine tool turntable, and the workpiece 6 is fixed using an independently set fixture, allowing the positioning module 2 to be suspended within the groove 7 of the workpiece 6. The positioning module 2 can rotate within the groove 7 as the rotating base 1 rotates. The machining process includes the following steps:

[0026] Drill the center hole at the front end of the first section of holes; Drill the first section of holes.

[0027] Use the machine tool rotary table to rotate the drilling guide sleeve 3 to a position aligned with the axis of the first hole, and then drill the second hole;

[0028] Enlarge the front guide hole of the first section hole, and enlarge the first section hole;

[0029] Use the machine tool rotary table to rotate the reaming guide sleeve 4 to a position aligned with the axis of the first section of the hole, and then ream the second section of the hole;

[0030] The guide hole at the front end of the first section of the hole is reamed; the first section of the hole is reamed.

[0031] Use the machine tool turntable to rotate the reaming guide sleeve 5 to a position aligned with the axis of the first hole, and then ream the second hole.

[0032] It is understood that the specific specifications and quantities of the drilling guide sleeve 3, the reaming guide sleeve 4, and the boring guide sleeve 5 should be adapted to the workpiece 6 to be processed. In the embodiment shown in the accompanying drawings of this invention, the workpiece 6 is designed with three holes arranged side by side, therefore, three sets of drilling guide sleeves 3, reaming guide sleeves 4, and boring guide sleeves 5 should be designed accordingly. In addition, the embodiment shown in the accompanying drawings only shows the key processing parts of the workpiece 6, and does not show the overall structure of the workpiece 6 and the corresponding fixtures. Depending on the different external specifications of the workpiece 6 to be processed, those skilled in the art can design the corresponding fixtures using conventional methods.

[0033] It is understood that the deep hole machining auxiliary device for rudder parts involved in this invention is a general-purpose device. When the workpiece 6 does not have a groove 7 designed, the hole to be machined is a single-section integral hole. The positioning module 2 can be matched and designed on the front end face of the hole, and the positioning module 2 can rotate at this position as the rotating base 1 rotates.

Claims

1. A deep hole machining auxiliary device for rudder-type parts, characterized in that: The system includes a rotating base (1), one end of which has a turntable connection structure for fixed connection with the machine tool turntable, and the other end has a protruding positioning module (2). The positioning module (2) is eccentrically positioned relative to the rotating base (1), and the entire positioning module (2) is located in the side area of ​​the central axis of the rotating base (1). A drilling guide sleeve (3), a reaming guide sleeve (4), and a boring guide sleeve (5) are fixedly installed on the positioning module (2). The axes of the drilling guide sleeve (3), the reaming guide sleeve (4), and the boring guide sleeve (5) are all arranged radially along the rotating base (1). A set of drilling guide sleeves (3), a set of reaming guide sleeves (4), and a set of boring guide sleeves (5) constitute a hole machining guide assembly for machining the same hole. The axes of the drilling guide sleeves (3), the reaming guide sleeves (4), and the boring guide sleeves (5) corresponding to each hole machining guide assembly are located on the same radial section of the rotating base (1) and are arranged circumferentially along the rotating base (1).

2. The deep hole machining auxiliary device for rudder-type parts as described in claim 1, characterized in that: The positioning module (2) is provided with a drilling guide sleeve installation through hole for each group of drilling guide sleeves (3). Both ends of the drilling guide sleeve installation through hole are stepped holes A, and the drilling guide sleeve (3) is set in the stepped hole A.

3. The deep hole machining auxiliary device for rudder-type parts as described in claim 1, characterized in that: The positioning module (2) is provided with a through hole for each set of expansion guide sleeves (4). Both ends of the through hole for expansion guide sleeve are stepped holes B, and the expansion guide sleeve (4) is set in the stepped hole B.

4. The deep hole machining auxiliary device for rudder-type parts as described in claim 1, characterized in that: The positioning module (2) provides a through hole for mounting the reamer guide sleeve for each group of reamer guide sleeves (5). Both ends of the through hole for mounting the reamer guide sleeve are stepped holes C, and the reamer guide sleeve (5) is set inside the stepped holes C.

5. A method for deep hole machining of rudder-type parts, wherein the surface of the workpiece (6) has a groove (7), the hole to be machined penetrates the two side walls of the groove (7), and each hole to be machined on the same axis includes a first section hole located on one side of the groove (7) and a second section hole located on the other side of the groove (7), characterized in that, The deep hole machining auxiliary device for rudder-type parts as described in any one of claims 1 to 4 is used. Before machining, the rotating base (1) is fixedly connected to the machine tool turntable, the workpiece (6) is fixed by an independently set fixture, and the positioning module (2) can be suspended into the slot (7) of the workpiece (6), and the positioning module (2) can rotate in the slot (7) as the rotating base (1) rotates. The machining process includes the following steps: Drill the center hole at the front end of the first section of holes; Drill the first section of holes. Use the machine tool turntable to rotate the drilling guide sleeve (3) to a position aligned with the axis of the first hole, and then drill the second hole; Enlarge the front guide hole of the first section hole, and enlarge the first section hole; Use the machine tool turntable to rotate the reaming guide sleeve (4) to a position aligned with the axis of the first section hole, and then ream the second section hole; The guide hole at the front end of the first section of the hole is reamed; the first section of the hole is reamed. Use the machine tool turntable to rotate the reaming guide sleeve (5) to a position aligned with the axis of the first hole, and then ream the second hole.

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