CN212704485U - Small separation spray pipe mounting hole machining device - Google Patents

Small separation spray pipe mounting hole machining device Download PDF

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Publication number
CN212704485U
CN212704485U CN202021277596.7U CN202021277596U CN212704485U CN 212704485 U CN212704485 U CN 212704485U CN 202021277596 U CN202021277596 U CN 202021277596U CN 212704485 U CN212704485 U CN 212704485U
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China
Prior art keywords
hole
mounting hole
drill
jig body
holes
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CN202021277596.7U
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Chinese (zh)
Inventor
罗海锋
徐文标
马敏兴
王喆
钟智
李超
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Guizhou Aerospace Fenghua Precision Equipment Co Ltd
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Guizhou Aerospace Fenghua Precision Equipment Co Ltd
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Abstract

The utility model discloses a little separation spray tube mounting hole processingequipment, including jig, conversion head, pistol drill, drill bit and flexible axle, the jig includes jig body, locating hole and location step, the external diameter of jig body is unanimous with the internal diameter of mounting hole, there are two through-holes on the side surface of jig body, and two through-holes are located two intersections that the diameter line of jig body cross-section intersects with the jig body respectively; the included angle between the axial line of the inlet end and the axial line of the outlet end of the conversion head is equal to 90 degrees; the flexible shaft is positioned in the conversion head, one end of the flexible shaft is connected with an output shaft of the pistol drill, and the other end of the flexible shaft is connected with the drill bit. Adopt the utility model discloses during the awl pointed hole on the processing mounting hole inner wall, the position degree in awl pointed hole is good, and the shape size is easily controlled, and the processing surface quality is good, and process time is short, and production efficiency is high, and processing cycle is short.

Description

Small separation spray pipe mounting hole machining device
Technical Field
The utility model relates to a machining technical field, especially a drilling equipment who processes little aperture, high position degree requirement bell mouth in narrow space.
Background
As shown in figure 1, the part is provided with a taper hole to be processed, and the main processing difficulties are as follows:
(1) the material of the cabin body is ZM 6;
(2) the requirement on the position degree of the 90-degree conical taper hole is high, and the smooth installation and separation of the separation spray pipe are directly influenced;
(3) the hole processing position is deep and narrow, and the aperture is only phi 49 mm.
In the machining process, the position space where the 90-degree conical tip hole is located is narrow, and a common drilling tool cannot machine, so that the main technical problem of the machining is solved, and therefore when a machining scheme is determined, analysis and control are mainly performed around the point. The processing method and the processing device have reasonable design requirements, and the parts can meet the requirements of dimensional accuracy and production.
The requirement on the relative position degree of the conical tip hole is high, and the smooth installation and separation of the separation spray pipe at the position are directly influenced.
The prior processing technology has the following defects:
(1) drilling through from the outside of the cabin body, and then performing plugging processing: the processing method destroys the original part structure, and needs to consider the firmness and the sealing property after plugging, and generally, the processing method needs design agreement.
(2) The disadvantages of electric discharge machining: the time consumption is long, the conical tip electrode is easy to wear and difficult to ensure the machining precision, and meanwhile, the length of the part of 1.04m has great requirements on an electric spark machine tool.
Disclosure of Invention
The utility model discloses a main aim at: the utility model provides a little separation spray tube mounting hole processingequipment, when the awl pointed hole on the processing mounting hole inner wall, the position degree of awl pointed hole is good, and the shape size is easily controlled, and the processing surface is of high quality, and the process time is short, and production efficiency is high, and the process cycle is short.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the small separation spray pipe mounting hole processing device is provided with a small hole and steps on the inner wall of a processed mounting hole, and comprises,
the drilling jig comprises a drilling jig body, a positioning hole and a positioning step, the outer diameter of the drilling jig body is consistent with the inner diameter of the mounting hole, two through holes are formed in the side surface of the drilling jig body, and the two through holes are respectively located at two intersection points where the diameter line of the cross section of the drilling jig body intersects with the drilling jig body; the number of the positioning holes is more than or equal to two, the aperture of each positioning hole is the same as the inner diameter of each small hole in the inner wall of each mounting hole, and the hole distance between every two adjacent positioning holes is equal to the hole distance between every two adjacent small holes in the inner wall of each mounting hole; the positioning step is matched with the step on the inner wall of the mounting hole;
the included angle between the axis of the inlet end and the axis of the outlet end of the conversion head is more than or equal to 90 degrees;
the flexible shaft is positioned in the conversion head, one end of the flexible shaft is connected with an output shaft of the pistol drill, and the other end of the flexible shaft is connected with the drill.
Preferably, the drill die body is a variable cross-section stepped circular tube, the positioning steps are annular protrusions on the outer circumferential surface of the variable cross-section stepped circular tube, the number of the positioning holes is two, and the two positioning holes are located on the surface of the circular tube with the smallest outer diameter of the cross section.
Preferably, the included angle between the inlet end axis and the outlet end axis of the conversion head is equal to 90 degrees.
The pistol drill is a pneumatic pistol drill.
Preferably, the drill bit is a step drill bit, the maximum diameter of the drill bit is larger than the major diameter of the conical tip hole to be machined on the inner wall of the mounting hole, and the drill bit is free of side edges.
Preferably, the drill handle of the drill bit is hexagonal.
Utilize the utility model discloses a device can realize the processing of the unable narrow and small space position that touches of hand, combines current production condition, reachs reasonable processing scheme, provides good reference scheme for similar processing, has improved production efficiency, reduces the processing cost.
Compared with the prior art, the utility model has the advantages of as follows:
(1) the two conical tip holes are machined under one-time clamping, and the relative position degree is better.
(2) The shape and size of the taper hole are easy to control, and the quality of the processed surface is good.
(3) The processing time is only 4-5 minutes, the production efficiency is improved, and the processing period is shortened.
Drawings
FIG. 1 is a schematic view of the small separation nozzle part and the position of the bore hole in the mounting hole of the present invention;
fig. 2 is a schematic view of the drill jig of the present invention;
fig. 3 is a schematic view of the drilling principle of the present invention.
Detailed Description
In order to make the present invention easy to understand, the technical solution of the present invention is further explained below with reference to the attached drawings.
As shown in fig. 1, a cross-sectional view of a part of the small separation nozzle to be processed in this embodiment is shown, the material of the part is also ZM6, a square opening box structure with 60mm × 60mm and 20mm depth requires two rows of parallel 90 ° conical tip holes 5 with 10 × Φ 3.2 and 8 depth to be drilled on the inner side surface of the box, in the processing process of the existing similar structure, the holes to be processed are all through holes, and are required to be processed from the inner side and not to be met for the first time, since the thickness of the side wall is 10mm, the size of the inner cavity of the box body is only 40mm × 40mm, the depth is 15mm, the holes are too close to the bottom surface of the box body and are only 8mm, the conventional processing equipment (electric drill, pneumatic hand drill) cannot process, and no such miniature rotating equipment exists, which brings great difficulty to the processing.
In the transmission structure which can realize the processing in the narrow space at present, a flexible shaft transmission mechanism is a better one, the flexible shaft is a shaft which has small rigidity and elasticity and can be freely bent and transmitted and is used for connecting two shafts which are not in the same axis and are not in the same direction or have relative motion so as to transmit the rotary motion and the torque, and the rotary motion and the torque can be flexibly transmitted to any position. By knowing the characteristics of torque transmission, the processing scheme of the embodiment is determined according to the size of the flexible shaft and the processing space of the part and the condition of the part.
Go on according to following thinking in this embodiment, at first reequip the flexible axle, design direction frock carries out the auxiliary machining, tests, and under the prerequisite that satisfies the designing requirement, the special cutter of preparation combines the flexible axle to carry out drilling processing, has realized the processing of box body lateral wall drilling, and concrete content includes:
1. a reasonable design of the drill jig 1 is shown in figure 2.
The drill jig 1 tightly combined with the mounting hole is designed and manufactured by combining the structural characteristics of the mounting hole of the separation spray pipe, and two phi 3 positioning holes are adopted for positioning, so that the freedom degree of the drill jig 1 is firmly limited, the drill jig can be mounted at one time, the processing of two conical tip holes is completed at the same time, and the relative position degree is ensured.
The drill jig 1 comprises a drill jig body, two positioning holes and two positioning steps, wherein the drill jig body is a variable cross-section stepped circular pipe, the positioning steps are annular protrusions on the outer circumferential surface of the variable cross-section stepped circular pipe, and the two positioning holes are located on the surface of the circular pipe with the smallest cross-section outer diameter. The outer diameter of the drilling die body is consistent with the inner diameter of the mounting hole, two through holes are formed in the side surface of the drilling die body, and the two through holes are respectively located at two intersection points where the diameter line of the section of the drilling die body intersects with the drilling die body; the aperture of the positioning hole is the same as the inner diameter of the small hole on the inner wall of the mounting hole, and the hole distance between the adjacent positioning holes is equal to the hole distance between the adjacent small holes on the inner wall of the mounting hole; the positioning step is matched with the step on the inner wall of the mounting hole.
2. A simple hole drilling combination tool is manufactured as shown in fig. 3.
Through reequiping miniature 90 conversion heads 2, grind 90 ultrashort step drill bits 4, 4 diameters of drill bits are greater than awl point hole major diameter and do not have the side sword, play spacing effect, prevent to bore deeply, and the hexagonal handle is ground into to the drillstock, and the conversion head clamping of being convenient for combines current pneumatic power pistol to bore 3 and processes to realize the processing in narrow space side awl point hole, guarantee machining dimension. The flexible shaft is positioned in the conversion head 2, one end of the flexible shaft is connected with the output shaft of the pistol drill 3, and the other end is connected with the drill bit 4.
The utility model overcomes prior art's is not enough, combines current technical means, has realized the processing of little separation spray tube mounting hole inner wall 90 awl cusp holes 5. By adopting the processing device of the utility model, the processing flow is optimized, the production efficiency is improved, the processing period of the product is shortened, the product quality is stable, the design purpose is achieved, and the production requirement is met; the equipment utilization rate is improved, and processing reference and technical reserve are made for processing other similar product structures.
The foregoing shows and describes the general principles and features of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, which are only illustrative of the basic principles of the present invention, and that various changes and modifications can be made without departing from the basic principles of the present invention, and all such changes and modifications belong to the protection scope of the present invention.

Claims (6)

1. Little separation spray tube mounting hole processingequipment has aperture and step, its characterized in that on the mounting hole inner wall of processing: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the drilling jig comprises a drilling jig body (1), a positioning hole and a positioning step, wherein the outer diameter of the drilling jig body is consistent with the inner diameter of the mounting hole, two through holes are formed in the lateral surface of the drilling jig body, and the two through holes are respectively located at two intersection points where the diameter line of the cross section of the drilling jig body intersects with the drilling jig body; the number of the positioning holes is more than or equal to two, the aperture of each positioning hole is the same as the inner diameter of each small hole in the inner wall of each mounting hole, and the hole distance between every two adjacent positioning holes is equal to the hole distance between every two adjacent small holes in the inner wall of each mounting hole; the positioning step is matched with the step on the inner wall of the mounting hole;
the included angle between the axis of the inlet end and the axis of the outlet end of the conversion head (2) is more than or equal to 90 degrees;
the hand gun drill comprises a hand gun drill (3), a drill bit (4) and a flexible shaft, wherein the flexible shaft is positioned in the conversion head (2), one end of the flexible shaft is connected with an output shaft of the hand gun drill (3), and the other end of the flexible shaft is connected with the drill bit (4).
2. The small separation nozzle installation hole machining device according to claim 1, wherein: the drill die body is a variable cross-section stepped circular pipe, the positioning steps are annular protrusions on the outer circumferential surface of the variable cross-section stepped circular pipe, the number of the positioning holes is two, and the two positioning holes are located on the surface of the circular pipe with the smallest outer diameter of the cross section.
3. The small separation nozzle installation hole machining device according to claim 1, wherein: the included angle between the axis of the inlet end and the axis of the outlet end of the conversion head (2) is equal to 90 degrees.
4. The small separation nozzle installation hole machining device according to claim 1, wherein: the pistol drill (3) is a pneumatic pistol drill.
5. The small separation nozzle installation hole machining device according to claim 1, wherein: the drill bit (4) is a step drill bit, the maximum diameter of the drill bit (4) is larger than the large diameter of the conical tip hole to be machined on the inner wall of the mounting hole, and side edges are omitted.
6. The small separation nozzle installation hole machining device according to claim 1, wherein: the drill handle of the drill bit (4) is hexagonal.
CN202021277596.7U 2020-07-03 2020-07-03 Small separation spray pipe mounting hole machining device Active CN212704485U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021277596.7U CN212704485U (en) 2020-07-03 2020-07-03 Small separation spray pipe mounting hole machining device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021277596.7U CN212704485U (en) 2020-07-03 2020-07-03 Small separation spray pipe mounting hole machining device

Publications (1)

Publication Number Publication Date
CN212704485U true CN212704485U (en) 2021-03-16

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Family Applications (1)

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CN202021277596.7U Active CN212704485U (en) 2020-07-03 2020-07-03 Small separation spray pipe mounting hole machining device

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113182548A (en) * 2021-03-31 2021-07-30 成都飞机工业(集团)有限责任公司 Method for drilling hole by point-to-point cutting at preset angle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113182548A (en) * 2021-03-31 2021-07-30 成都飞机工业(集团)有限责任公司 Method for drilling hole by point-to-point cutting at preset angle

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