CN220029390U - Internal support tool for machining slender thin-wall tubular part and machining tool - Google Patents

Internal support tool for machining slender thin-wall tubular part and machining tool Download PDF

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Publication number
CN220029390U
CN220029390U CN202321587838.6U CN202321587838U CN220029390U CN 220029390 U CN220029390 U CN 220029390U CN 202321587838 U CN202321587838 U CN 202321587838U CN 220029390 U CN220029390 U CN 220029390U
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China
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blank
matching section
matching
tool
wall
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CN202321587838.6U
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周京平
周川燕
陈勇
陈洪川
贾国良
谭爱民
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Chengdu Aerospace Jingcheng Science And Technology Co ltd
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Chengdu Aerospace Jingcheng Science And Technology Co ltd
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Abstract

The utility model discloses an inner support tool and a processing tool for processing an elongated thin-wall tubular part, and solves the technical problem of high processing difficulty in the processing of the elongated thin-wall tubular part in the prior art. The inner supporting tool is used for supporting the blank when the slender thin-wall tubular part is processed and is provided with a first limiting part, a matching part and a fixing assembly which are connected in sequence; wherein the cross section size of the first limiting part is larger than the aperture of the blank; the matching part is used for penetrating through an inner hole of the blank; the matching part is provided with a first matching section and a second matching section which are sequentially connected; the length of the first matching section is matched with the length of the blank, and the outer wall of the first matching section is in clearance fit with the inner wall of the blank; the second matching section is positioned outside the inner hole; the fixed component is detachably connected with the second matching section.

Description

Internal support tool for machining slender thin-wall tubular part and machining tool
Technical Field
The utility model relates to the technical field of slender thin-wall tubular parts, in particular to an inner support tool for machining slender thin-wall tubular parts and a machining tool.
Background
The thin and long tubular part has high requirements on dimensional accuracy, form and position tolerance and roughness, and can be manufactured in a small amount by adopting a machining method, so that the thin and long tubular part has the following processing difficulties:
(1) Because the cutting amount is large in the processing process, the thinnest part of the pipe wall is as low as 2mm, the thermal deformation and the cutting stress deformation of certain materials such as aluminum alloy are large, and meanwhile, the residual internal stress of the materials is fully released, so that the processing deformation is large and the pipe wall is extremely flexible.
(2) Because the thin-wall tubular part is slender, the rigidity and the stability are insufficient, tremble is easy to cause during processing, the quality of products is affected, and even the processing cannot be normally performed.
Based on the processing difficulty, the product quality is poor and even is wasted, and the processing cost is obviously improved.
Disclosure of Invention
The utility model mainly aims to provide an inner support tool and a processing tool for processing an elongated thin-wall tubular part, so as to solve the technical problem of high processing difficulty in the processing of the elongated thin-wall tubular part in the prior art.
In order to achieve the above purpose, the utility model firstly provides an inner support tool, which has the following technical scheme:
the inner supporting tool is used for supporting the blank when the slender thin-wall tubular part is processed and is provided with a first limiting part, a matching part and a fixing assembly which are connected in sequence; wherein the cross section size of the first limiting part is larger than the aperture of the blank; the matching part is used for penetrating through an inner hole of the blank; the matching part is provided with a first matching section and a second matching section which are sequentially connected; the length of the first matching section is matched with the length of the blank, and the outer wall of the first matching section is in clearance fit with the inner wall of the blank; the second matching section is positioned outside the inner hole; the fixed component is detachably connected with the second matching section.
As a further improvement of the inner support tooling: the second matching section is provided with threads, and the fixing assembly comprises a nut in threaded connection with the second matching section.
As a further improvement of the inner support tooling: the fixing assembly further comprises a second limiting part, the second limiting part is sleeved with the second matching section, and the second limiting part is arranged between the blank and the nut.
As a further improvement of the inner support tooling: the length of the first limiting part is 15-25 mm.
As a further improvement of the inner support tooling: the length of the second matching section is 12-18 mm.
As a further improvement of the inner support tooling: the first limiting part is connected with the rotary head.
As a further improvement of the inner support tooling: the end of the second matching section is connected with the center.
In order to achieve the purpose, the utility model further provides a processing tool for finish turning of the excircle of the slender thin-wall tubular part, which comprises the following technical scheme:
the machining tool for finish turning of the excircle of the slender thin-wall tubular part comprises a center frame and a follower rest for supporting the outer part of a blank, and further comprises the inner supporting tool.
In order to achieve the above purpose, the utility model further provides a processing tool for milling the elongated thin-wall tubular part, which has the following technical scheme:
the machining tool for milling the elongated thin-wall tubular part comprises a four-axis machining center and the inner support tool. Preferably, the outer support tool is further included, the number of the outer support tools is at least two, and the outer support tool is provided with: the base is detachably connected with the four-axis machining center; and the supporting seat is provided with a groove matched with the outer edge of the blank.
The inner support tool disclosed by the utility model can support a blank when processing an elongated thin-wall tubular part, is simple in structure, convenient to assemble and disassemble and good in support effect, can obviously improve the rigidity and stability of the blank in an inner hole positioning mode, and can support the blank in the finish turning excircle processing process and the milling rib processing process of the elongated thin-wall tubular part, so that deformation and bending are reduced, the requirements on dimensional accuracy, straightness and concentricity are ensured, and the production efficiency of a product is obviously improved. Further, through adopting outer support frock to carry out outside auxiliary stay to the blank in the milling process, through the combination of interior support and outside auxiliary stay, further reduce milling the muscle processing degree of difficulty, promote the yield, reduce processing cost.
The utility model is further described below with reference to the drawings and detailed description. Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The accompanying drawings, which form a part hereof, are shown by way of illustration and not of limitation, and in which are shown by way of illustration and description of the utility model.
In the drawings:
fig. 1 is a schematic structural diagram of an inner support tool according to embodiment 1 of the present utility model.
Fig. 2 is a schematic structural diagram of a processing tool for finish turning of an outer circle of an elongated thin-walled tubular part according to embodiment 2 of the present utility model.
Fig. 3 is a schematic structural diagram of a tooling for milling the elongated thin-walled tubular part according to embodiment 3 of the present utility model.
Fig. 4 is a side view of a tooling for milling the elongated thin-walled tubular component according to embodiment 3 of the present utility model.
FIG. 5 is a schematic view of the structure of an elongated thin-walled tubular component processed in accordance with the present utility model.
FIG. 6 is a side view of an elongated thin walled tubular member formed in accordance with the present utility model.
The relevant marks in the drawings are as follows:
100-blank, 110-reinforcing rib, 120-inner hole, 210-first limit part, 220-matching part, 221-first matching section, 222-second matching section, 230-fixing component, 231-nut, 232-second limit part, 310-center frame, 320-follower rest, 330-rotary head, 340-center, 350-outer supporting tool, 351-base, 352-supporting seat and 353-screw.
Detailed Description
The present utility model will now be described more fully hereinafter with reference to the accompanying drawings. Those of ordinary skill in the art will be able to implement the utility model based on these descriptions. Before describing the present utility model with reference to the accompanying drawings, it should be noted in particular that:
the technical solutions and technical features provided in the sections including the following description in the present utility model may be combined with each other without conflict.
In addition, the embodiments of the present utility model referred to in the following description are typically only some, but not all, embodiments of the present utility model. Therefore, all other embodiments, which can be made by one of ordinary skill in the art without undue burden, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.
Terms and units in relation to the present utility model. The terms "comprising," "having," and any variations thereof in the description and claims of the utility model and in the relevant sections are intended to cover a non-exclusive inclusion.
Example 1
Fig. 1 is a schematic structural diagram of an inner support tool in this embodiment.
As shown in fig. 1, the internal support tool is used for supporting the blank 100 during processing of an elongated thin-walled tubular component, and has a first limiting portion 210, a mating portion 220 and a fixing assembly 230 connected in sequence.
The cross-sectional dimension of the first limiting portion 210 is greater than the aperture of the blank 100, and the length of the first limiting portion 210 is 20mm.
The mating portion 220 is configured to pass through the interior aperture 120 of the blank 100; the mating part 220 has a first mating section 221 and a second mating section 222 connected in sequence; the length of the first matching section 221 is matched with the length of the blank 100, and the outer wall of the first matching section 221 is in clearance fit with the inner wall of the blank 100; the second mating segment 222 is located outside the bore 120, and the second mating segment 222 has a length of 15mm.
The fixing component 230 is detachably connected with the second matching section 222, specifically: the second mating segment 222 is threaded, and the fixing assembly 230 includes a nut 231 that is screwed with the second mating segment 222. The fixing assembly 230 further includes a second limiting portion 232, the second limiting portion 232 is sleeved with the second mating segment 222, and the second limiting portion 232 is disposed between the blank 100 and the nut 231.
The inner support tool is made of Cr42MoV materials with high rigidity, good toughness, high hardness after heat treatment, good stability and small deformation.
Example 2
Fig. 2 is a schematic structural diagram of a processing tool for finish turning of an outer circle of an elongated thin-walled tubular part according to the embodiment.
As shown in fig. 2, the machining tool for finish turning of the outer circle of the elongated thin-walled tubular part comprises a center frame 310 for supporting the outer part of the blank 100, a follower frame 320 and the inner supporting tool, wherein the first limiting part 210 is connected with a rotary head 330, and the end part of the second matching section 222 is connected with a center 340.
Example 3
Fig. 3 is a schematic structural diagram of a tooling for milling the elongated thin-walled tubular part according to the embodiment. Fig. 4 is a side view of a tooling for milling the elongated thin-walled tubular member of the present embodiment.
As shown in fig. 3-4, the machining tool for milling the elongated thin-walled tubular part comprises a four-axis machining center, the inner support tool and the outer support tool 350, the first limiting part 210 is connected with the rotary head 330, and a central hole connected with the center 340 is formed at the end of the second matching section 222.
The number of the outer support tools 350 is at least two and symmetrically arranged. The outer support tool 350 is provided with a base 351 and a support seat 352, the base 351 is detachably connected with a four-axis machining center through a screw 353, the support seat 352 is provided with a groove matched with the outer edge of the blank 100, and the support seat 352 is arranged in the middle of the base 351.
The center frame 310, the follower rest 320, the rotary head 330, the center 340 and the four-axis machining center are conventional lathe accessories, and the lathe can be, but is not limited to, a common lathe CY6140-2000 or a numerical control lathe CY-K6150-2000 of Yunnan CY group limited company, and a precision cylindrical grinder MM1420-1500 of Changyi machine tool manufacturing limited company of Wuxi city.
Fig. 5 is a schematic structural view of the elongated thin-walled tubular member processed in the above embodiment. Fig. 6 is a side view of an elongated thin-walled tubular member formed in accordance with the above-described embodiments.
As shown in FIGS. 5-6, the part is a typical slender thin-walled tubular part, the inner diameter of the part is 18mm, the outer diameter of the part is 22mm, three reinforcing ribs 110 are arranged on the outer diameter, the thickness of the thinnest part is 2mm, the length of the part is 1040mm, the length-diameter ratio of the part is 47, and the part is made of L6061 aluminum alloy.
The content of the present utility model is described above. Those of ordinary skill in the art will be able to implement the utility model based on these descriptions. Based on the foregoing, all other embodiments that may be obtained by one of ordinary skill in the art without undue burden are within the scope of the present utility model.

Claims (10)

1. The inner support tool is used for supporting a blank (100) during processing of an elongated thin-wall tubular part, and is characterized in that: the device comprises a first limiting part (210), a matching part (220) and a fixing assembly (230) which are connected in sequence; wherein,
the cross-sectional dimension of the first stop portion (210) is greater than the aperture of the blank (100);
the mating portion (220) is for passing through an inner bore (120) of the blank (100); the matching part (220) is provided with a first matching section (221) and a second matching section (222) which are connected in sequence; the length of the first matching section (221) is matched with the length of the blank (100), and the outer wall of the first matching section (221) is in clearance fit with the inner wall of the blank (100); the second mating segment (222) is located outside of the bore (120);
the securing assembly (230) is removably connected to the second mating segment (222).
2. The internal support tooling of claim 1, wherein: the second matching section (222) is provided with threads, and the fixing assembly (230) comprises a nut (231) in threaded connection with the second matching section (222).
3. The internal support tooling of claim 2, wherein: the fixing assembly (230) further comprises a second limiting part (232), the second limiting part (232) is sleeved with the second matching section (222), and the second limiting part (232) is arranged between the blank (100) and the nut (231).
4. The internal support tooling of claim 1, wherein: the length of the first limit part (210) is 15-25 mm.
5. The internal support tooling of claim 1, wherein: the length of the second matching section (222) is 12-18 mm.
6. The internal support tooling of claim 1, wherein: the first limiting part (210) is connected with the rotary head (330).
7. The internal support tooling of claim 1, wherein: the end of the second mating segment (222) is connected to a tip (340).
8. Machining tool for finish turning of excircle of slender thin-wall tubular part, comprising a center frame (310) and a follower frame (320) for supporting the outside of a blank (100), and being characterized in that: further comprising an inner support tooling according to one of claims 1-7.
9. Processing frock of long and thin wall tubular part milling rib processing, including four machining centers, its characterized in that: further comprising an inner support tooling according to one of claims 1-7.
10. The tooling of claim 9, wherein: still include outer support frock (350), outer support frock (350) are two at least, outer support frock (350) have:
the base (351) is detachably connected with the four-axis machining center;
-a support seat (352), said support seat (352) having a recess adapted to the outer edge of the blank (100).
CN202321587838.6U 2023-06-21 2023-06-21 Internal support tool for machining slender thin-wall tubular part and machining tool Active CN220029390U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321587838.6U CN220029390U (en) 2023-06-21 2023-06-21 Internal support tool for machining slender thin-wall tubular part and machining tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321587838.6U CN220029390U (en) 2023-06-21 2023-06-21 Internal support tool for machining slender thin-wall tubular part and machining tool

Publications (1)

Publication Number Publication Date
CN220029390U true CN220029390U (en) 2023-11-17

Family

ID=88733489

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321587838.6U Active CN220029390U (en) 2023-06-21 2023-06-21 Internal support tool for machining slender thin-wall tubular part and machining tool

Country Status (1)

Country Link
CN (1) CN220029390U (en)

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