CN210387727U

CN210387727U - Side milling head for processing inner hole of copper pipe fitting

Info

Publication number: CN210387727U
Application number: CN201921249111.0U
Authority: CN
Inventors: 冯青云
Original assignee: Changzhou Pufa Machinery Co Ltd
Current assignee: Changzhou Pufa Machinery Co Ltd
Priority date: 2019-08-03
Filing date: 2019-08-03
Publication date: 2020-04-24
Anticipated expiration: 2029-08-03

Abstract

The utility model relates to a processing of copper pipe fitting hole is with side milling head. The side milling head for processing the inner hole of the copper pipe fitting is arranged at the end part of the milling cutter arm. The milling cutter arm is arranged in exploring the hole of copper pipe fitting, the tip of milling cutter arm has been seted up and has been installed the hole, the side cutter head transversely install in the tip of milling cutter arm, the side cutter head be used for right the hole lateral wall of copper pipe fitting carries out milling process, the side cutter head include milling cutter axle, drive wheel, two bearings and the cap that merges, the milling cutter axle is inserted and is located in the mounting hole, the concave dismantlement groove that is equipped with of one end of milling cutter axle, it is located at least partially to dismantle the groove in the mounting hole, the other end of milling cutter axle is provided with milling cutter. The side milling head is convenient for processing the inner hole of the copper pipe fitting with a smaller hole diameter.

Description

Side milling head for processing inner hole of copper pipe fitting

Technical Field

The utility model relates to a processing of copper pipe fitting hole is with side milling head.

Background

When an inner hole of a pipe fitting is machined, a spiral groove or a hole with other shapes is often required to be machined on the inner side wall of the pipe fitting. For example, when the industry carries out side milling on an inner hole of a copper pipe, a side milling head in the inner hole needs to be perpendicular to the axial direction of the copper pipe, and is limited by the bore diameter of the inner hole of the processed copper pipe, and the length of the side milling head of a milling cutter assembly stretching into the copper pipe needs to be small. However, for the copper pipe with smaller pipe diameter, it is often difficult to manufacture the side milling head meeting the requirement, so that the inner hole of the copper pipe with smaller pipe diameter is difficult to process.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need for a side milling head that facilitates machining of the inner bore of smaller bore copper tubing.

The utility model provides a copper pipe spare hole processing is with side milling head, installs in the tip of milling cutter arm, the milling cutter arm is arranged in exploring the hole of copper pipe spare, the tip of milling cutter arm has been seted up and has been installed the hole, side milling head transversely install in the tip of milling cutter arm, side milling head is used for right the hole lateral wall of copper pipe spare mills processing, side milling head includes milling cutter axle, drive wheel and cap, the milling cutter axle is inserted and is located in the mounting hole, the concave dismantlement groove that is equipped with of one end of milling cutter axle, the dismantlement groove is located at least part of portion in the mounting hole, the other end of milling cutter axle is provided with milling cutter, protruding stretch in the outside of milling cutter arm, the fixed cover of drive wheel is located the middle part of milling cutter axle, and the cap cover is located the milling cutter axle is neighbouring the one end of milling cutter is fixed in on the lateral wall of milling cutter arm.

In one embodiment, a supporting ring portion is convexly arranged at one end, away from the milling cutter, of the milling cutter shaft in the radial direction, the supporting ring portion supports against the side wall of the milling cutter arm, and the dismounting groove is formed in the center of the supporting ring portion.

In one embodiment, the disassembly groove is a hexagon socket, and the disassembly groove is completely positioned in the installation hole and exposed outside the milling cutter arm.

In one embodiment, the side milling head further comprises two angular contact bearings located at opposite ends of the drive wheel.

In one embodiment, the driving wheel is a belt pulley having a plurality of annular grooves formed therein, and the belt pulley is configured to engage with a toothed transmission belt.

In one embodiment, the angular contact bearing includes an inner ring, an outer ring, and a plurality of balls, the inner ring is fixedly sleeved on the milling cutter shaft, the outer ring is wrapped around the inner ring, and the plurality of balls are arranged between the outer ring and the inner ring in a rolling manner.

In one embodiment, the inner ring includes a first end ring portion and a second end ring portion, the first end ring portion and the second end ring portion are disposed opposite to each other, the first end ring portion faces the outer side of the milling cutter arm, the thickness of the first end ring portion is greater than that of the second end ring portion, an inner ring surface is formed on the first end ring portion, and the diameter of the inner ring surface gradually decreases in the direction facing the outer side of the milling cutter arm.

In one embodiment, a protruding ring portion is further formed at one end, away from the disassembly groove, of the milling cutter shaft, and the end face, away from the milling cutter, of the protruding ring portion is stopped on one of the angular contact bearings.

In one embodiment, the side milling head further includes a washer, the washer is sleeved on the milling cutter shaft, the nut includes a surrounding portion and a polygonal housing protruding from the surrounding portion, the washer is clamped between the milling cutter arm and the surrounding portion, and the milling cutter protrudes from the polygonal housing.

In one of them embodiment, the periphery of holding ring portion is provided with a plurality of spherical pearls, the side cutter head still includes transparent dust cap, transparent dust cap fixed mounting in cover establish on the milling cutter arm the disassembly groove, transparent top cap wrap in on a plurality of spherical pearls, set up crisscross crowded slit of penetrating on the terminal surface of transparent top cap, the edge of penetrating the slit is the rubber edge that warp, crowded slit is used for supplying extracting tool to insert.

When the side wall of the inner hole of the copper pipe fitting is machined, the milling cutter arm extends into the inner hole of the copper pipe fitting, and the side milling head conducts milling machining on the side wall of the inner hole. For example, in order to perform disassembly and maintenance, a wrench portion, such as a hexagonal protrusion, is required to be disposed at a position where a milling cutter shaft is exposed outside the milling cutter arm, so as to facilitate clamping and disassembling of a sleeve or a wrench. The side milling head is provided with the concave disassembly groove, and the disassembly groove is at least partially positioned in the installation hole, so that the length size of the side milling head can be relatively reduced, and the side milling head is convenient for processing an inner hole of a copper pipe fitting with a small aperture. In particular, a general side milling head can only process tubular workpieces with the diameter of more than or equal to 80 mm, and has large limitation, and small-hole workpieces cannot be processed. The side milling head can process a workpiece with the diameter of 50 mm, the milling depth of the side milling head to the inner hole side wall of the copper pipe fitting is 2-3 mm, and for example, the milling depth of the milling cutter to the inner hole side wall is about 2-3 mm.

Drawings

Fig. 1 is a schematic perspective view of a milling cutter arm for machining an inner hole of a copper pipe according to an embodiment.

Fig. 2 is a schematic perspective view of a side milling head for machining an inner hole of a copper pipe fitting according to an embodiment.

Fig. 3 is a perspective view of the side milling head for machining the inner hole of the copper pipe fitting shown in fig. 2 from another view angle.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The utility model relates to a processing of copper pipe fitting hole is with side milling head is applied to on the milling cutter arm. For example, the side milling head for processing the inner hole of the copper pipe fitting is arranged at the end part of the milling cutter arm. For example, the milling cutter arm is used for extending into an inner hole of a copper pipe, an installation hole is formed in the end portion of the milling cutter arm, the side milling head is transversely installed at the end portion of the milling cutter arm and used for milling the side wall of the inner hole of the copper pipe, and the side milling head comprises a milling cutter shaft, a driving wheel and a combining cap. For example, the milling cutter shaft is inserted into the mounting hole, a disassembly groove is concavely formed in one end of the milling cutter shaft, at least part of the disassembly groove is located in the mounting hole, and a milling cutter is arranged at the other end of the milling cutter shaft and protrudes out of the milling cutter arm. For example, the driving wheel is fixedly sleeved on the middle part of the milling cutter shaft, and the nut is sleeved on one end of the milling cutter shaft adjacent to the milling cutter and fixed on the side wall of the milling cutter arm.

Referring to fig. 1 to 3, a side milling head 20 for processing an inner hole of a copper pipe is installed at an end portion of a milling arm 10, the milling arm 10 is used for extending into the inner hole of the copper pipe, an installation hole is formed at the end portion of the milling arm 10, the side milling head 20 is transversely installed at the end portion of the milling arm 10, the side milling head 20 is used for milling a side wall of the inner hole of the copper pipe, the side milling head 20 includes a milling shaft 21, a driving wheel 22 and a combining cap 28, the milling shaft 21 is inserted into the installation hole, a dismounting groove 215 is concavely formed at one end of the milling shaft 21, at least a part of the dismounting groove 215 is located in the installation hole, a milling cutter 216 is arranged at the other end of the milling shaft 21, the milling cutter 216 protrudes out of the milling arm 10, the driving wheel 22 is fixedly sleeved at the middle portion of the milling shaft 21, and the cap 28 is sleeved at one end of the milling shaft 21 adjacent to the.

For example, when machining the side wall of the bore of a copper pipe, the milling arm 10 extends into the bore of the copper pipe and the side milling head 20 mills the side wall of the bore. For example, in order to perform disassembly and maintenance in a typical side milling head 20, a wrench portion, such as a hexagonal protrusion, is required to be disposed at an outer side of the milling cutter shaft 21 exposed to the milling cutter arm 10, so as to facilitate clamping and disassembling of a sleeve or a wrench. In the side milling head 20, the wrench part is provided with the concave disassembly groove 215, and at least part of the disassembly groove 215 is located in the installation hole, so that the length of the side milling head 20 can be relatively reduced, and the side milling head 20 is convenient for machining the inner hole of the copper pipe fitting with a smaller hole diameter. Specifically, the general side milling head 20 can only process tubular workpieces with a diameter of 80 mm or more, and has a large limitation, and cannot process small-hole workpieces. The side milling head 20 of the present embodiment can machine a workpiece with a diameter of 50 mm, and the milling depth of the side milling head 20 to the inner bore side wall of the copper pipe is 2-3 mm, for example, the milling depth of the milling cutter 216 to the inner bore side wall is about 2-3 mm.

For example, in order to prevent the milling cutter shaft 21 from being loosened from the opposite sides of the milling cutter arm 10, an abutting ring portion 217 is protruded outward in the radial direction at one end of the milling cutter shaft 21 away from the milling cutter 216, the abutting ring portion 217 abuts against the side wall of the milling cutter arm 10, and the removal groove 215 is opened at the center of the abutting ring portion 217. The removal slot 215 is a hexagonal socket, and the removal slot 215 is completely located in the mounting hole and exposed outside the milling cutter arm 10. The side milling head 20 further comprises two angular contact bearings 25, the two angular contact bearings 25 being located at opposite ends of the driving wheel 22. The driving wheel 22 is a belt pulley provided with a plurality of annular grooves 221 for engaging with a toothed drive belt. By providing two angular contact bearings 25, the drive wheel 22 fixed to the milling cutter shaft 21 can then be braced from both sides, which in turn prevents the milling cutter shaft 21 from being released from the opposite sides of the milling cutter arm 10. And through setting up the belt pulley, then can drive belt carry out the transmission, conveniently set up drive belt in narrow and small space to transmission power. By having the removal slot 215 completely within the mounting hole and exposed to the outside of the milling cutter arm 10, the exposure is visible from the outside, thereby facilitating the user's visibility of the removal slot 215 for subsequent insertion of a removal tool.

For example, in order to improve the positioning effect in the axial direction, the angular contact bearing 25 includes an inner ring 251, an outer ring 252, and a plurality of balls, the inner ring 251 is fixedly fitted to the milling cutter shaft 21, the outer ring 252 is wrapped around the inner ring 251, and the plurality of balls are rollably mounted between the outer ring 252 and the inner ring 251. The inner ring 251 comprises a first end ring part and a second end ring part which are oppositely arranged, the first end ring part faces the outer side of the milling cutter arm 10, the thickness of the first end ring part is larger than that of the second end ring part, an inner ring surface is formed on the first end ring part, and the diameter of the inner ring surface is gradually reduced along the direction of the outer side of the milling cutter arm 10. Through setting up the thickness of first end ring portion with second end ring portion, can improve the axial positioning effect of milling cutter axle 21 then.

For example, in order to position the milling cutter 216, a protruding ring portion 218 is further formed at an end of the milling cutter shaft 21 away from the removing groove 215, and an end face of the protruding ring portion 218 away from the milling cutter 216 is stopped on one of the angular contact bearings 25. The side milling head 20 further includes a washer 26, the washer 26 is sleeved on the milling cutter shaft 21, the cap 28 includes a surrounding portion 281 and a polygonal housing 282 protruding from the surrounding portion 281, the washer 26 is clamped between the milling cutter arm 10 and the surrounding portion 281, and the milling cutter 216 protrudes from the polygonal housing 282. By providing the washer 26 and the surround 281, the nut 28 is then easily installed and the mill 216 is positioned with the nut 28.

For example, in an embodiment, in order to prevent dust, moisture or reflective splashed particles on the inner hole sidewall of the copper pipe fitting from entering the dismounting groove 215 during the processing, thereby causing impact or corrosion or blockage to the dismounting groove 215, the periphery of the abutting ring portion 217 is provided with a plurality of spherical beads, the side milling head 20 further comprises a transparent dust cap, the transparent dust cap is fixedly mounted on the milling cutter arm 10 and covers the dismounting groove 215, the transparent top cap is wrapped on the plurality of spherical beads, a cross-shaped extrusion slit is formed in the end surface of the transparent top cap, the edge of the extrusion slit is a rubber deformation edge, and the extrusion slit is used for inserting a dismounting tool. Through setting up transparent dust cap, be convenient for on the one hand see accurate dismantlement groove 215, insert the removal tool then in the crisscross slot of extruding into, on the other hand when normal use, the crisscross slot of extruding into utilizes elasticity to seal, prevents that various debris from getting into the dismantlement groove 215 in, prevents to strike or corrosion or jam to the dismantlement groove 215.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A side milling head for processing an inner hole of a copper pipe fitting is arranged at the end part of a milling cutter arm and is characterized in that, the milling cutter arm is used for extending into an inner hole of the copper pipe fitting, the end part of the milling cutter arm is provided with a mounting hole, the side milling head is transversely arranged at the end part of the milling cutter arm and is used for milling the side wall of the inner hole of the copper pipe fitting, the side milling head comprises a milling cutter shaft, a driving wheel and a combining cap, the milling cutter shaft is inserted in the mounting hole, one end of the milling cutter shaft is concavely provided with a disassembly groove, at least part of the disassembly groove is positioned in the mounting hole, the other end of the milling cutter shaft is provided with a milling cutter which protrudes out of the milling cutter arm, the driving wheel is fixedly sleeved in the middle of the milling cutter shaft, and the cap is sleeved on one end, close to the milling cutter, of the milling cutter shaft and fixed on the side wall of the milling cutter arm.

2. The side milling head for processing the inner hole of the copper pipe fitting as claimed in claim 1, wherein a supporting ring part is arranged at one end of the milling cutter shaft away from the milling cutter in a radially outward protruding manner, the supporting ring part is supported on the side wall of the milling cutter arm, and the dismounting groove is arranged at the center of the supporting ring part.

3. The side milling head for processing the inner hole of the copper pipe fitting as claimed in claim 2, wherein the disassembly groove is a hexagon socket empty groove, and the disassembly groove is completely positioned in the mounting hole and exposed outside the milling cutter arm.

4. The side milling head for machining an inner hole of a copper pipe fitting as claimed in claim 1, wherein the side milling head further comprises two angular contact bearings, and the two angular contact bearings are respectively located at two opposite ends of the driving wheel.

5. The side milling head for machining inner holes of copper pipe fittings as claimed in claim 4, wherein the driving wheel is a belt pulley, a plurality of annular grooves are formed in the belt pulley, and the belt pulley is used for being meshed with a transmission belt with ridge teeth.

6. The side milling head for machining an inner hole of a copper pipe fitting as claimed in claim 4, wherein the angular contact bearing comprises an inner ring, an outer ring and a plurality of balls, the inner ring is fixedly sleeved on the milling cutter shaft, the outer ring is wrapped outside the inner ring, and the balls are arranged between the outer ring and the inner ring in a rolling manner.

7. The side milling head for machining an inner hole of a copper pipe fitting as claimed in claim 6, wherein the inner ring comprises a first end ring portion and a second end ring portion which are arranged oppositely, the first end ring portion faces the outer side of the milling cutter arm, the thickness of the first end ring portion is larger than that of the second end ring portion, an inner ring surface is formed on the first end ring portion, and the diameter of the inner ring surface is gradually reduced along the direction facing the outer side of the milling cutter arm.

8. The side milling head for processing the inner hole of the copper pipe fitting as claimed in claim 4, wherein a protruding ring part is further formed at one end of the milling cutter shaft away from the disassembly groove, and an end face of the protruding ring part away from the milling cutter is stopped on one of the angular contact bearings.

9. The side milling head for processing the inner hole of the copper pipe fitting as claimed in claim 1, wherein the side milling head further comprises a washer, the washer is sleeved on the milling cutter shaft, the nut comprises a surrounding portion and a polygonal shell protruding from the surrounding portion, the washer is clamped between the milling cutter arm and the surrounding portion, and the milling cutter protrudes from the polygonal shell.

10. The side milling head for processing the inner hole of the copper pipe fitting as claimed in claim 2, wherein a plurality of spherical balls are arranged on the periphery of the abutting ring portion, the side milling head further comprises a transparent dust cap, the transparent dust cap is fixedly mounted on the milling cutter arm and covers the dismounting groove, the transparent dust cap is wrapped on the plurality of spherical balls, a cross-shaped extrusion slit is formed in the end face of the transparent dust cap, the edge of the extrusion slit is a rubber deformation edge, and the extrusion slit is used for inserting a dismounting tool.