CN216912161U

CN216912161U - Boring machine

Info

Publication number: CN216912161U
Application number: CN202220596879.0U
Authority: CN
Inventors: 丁德崇; 王法栋
Original assignee: Qingdao Yangfan Shipbuilding Co ltd
Current assignee: Qingdao Yangfan Shipbuilding Co ltd
Priority date: 2022-03-18
Filing date: 2022-03-18
Publication date: 2022-07-08
Anticipated expiration: 2032-03-18

Abstract

The utility model discloses a boring machine, which comprises a rack, a boring rod, two feed screw rods, two feed screw nuts and two support frames, wherein the boring rod is arranged on the rack; the boring bar is a cylindrical shaft and is provided with an opening hole penetrating through the boring bar in the axial direction; the open hole comprises an opening which is positioned at one side of the boring bar; the two feed screw rods are respectively a first feed screw rod and a second feed screw rod which are axially adjacent and rotatably arranged in the opening hole; the feed nut comprises an internal thread and a connecting part; the internal thread is in threaded connection and matched with the feed screw rod; the feed screw nut is in threaded connection with the first feed screw rod and/or the second feed screw rod; the connecting part is arranged in the opening, can move along the length direction of the opening and is used for feeding a boring cutter; the two support frames are respectively arranged at two ends of the boring bar, are fixedly connected with the rack, are rotatably connected with the boring bar and support the boring bar; the utility model improves the processing efficiency and the processing precision of the hole.

Description

Boring machine

Technical Field

The utility model belongs to the technical field of machining equipment, and particularly relates to a boring machine.

Background

In the process of building a large ship shafting, the large-aperture long hole and the coaxial long holes with different diameters are difficult to machine and have high requirements; namely, the coaxiality requirement of the large-aperture long hole needs to meet the requirement; the coaxiality of the long holes with different diameters needs to meet the requirement; the common boring machine equipment needs to be disassembled for processing for multiple times, the coaxiality can not meet the requirement, and the processing efficiency is lower.

Disclosure of Invention

The utility model provides a boring machine, which can simultaneously process equal-diameter or unequal-diameter long holes and improve the processing precision and efficiency of boring.

In order to solve the technical problems, the utility model adopts the following technical scheme:

a boring machine comprises a frame, a boring rod, two feed screw rods, two support frames and one or two feed screw nuts;

the boring bar is a cylindrical shaft and is provided with an opening hole penetrating through the boring bar in the axial direction; the open hole comprises an opening which is positioned at one side of the boring bar;

the two feed screw rods are respectively a first feed screw rod and a second feed screw rod which are axially adjacent and rotatably arranged in the opening hole;

the two support frames are respectively arranged at two ends of the boring bar, are fixedly connected with the rack, are rotatably connected with the boring bar and are used for supporting the boring bar;

the feed nut comprises an internal thread and a connecting part; the internal thread is in threaded connection and matched with the feed screw rod; the feed screw nut is in threaded connection with the first feed screw rod and/or the second feed screw rod; the connecting part is arranged in the opening, can move along the length direction of the opening and is used for feeding the boring cutter.

In one embodiment, the device further comprises a rotating device connected with the frame;

a key groove is formed in one side, opposite to the opening hole, of the boring bar; the rotating device is connected with the boring bar through a key, drives the boring bar to rotate, and drives the boring cutter to rotate.

In an embodiment, the boring device further comprises one or two feed devices, the one or two feed devices are respectively located at one end or two ends of the boring rod and connected with the outer end portions of the first feed screw rod and/or the second feed screw rod, the feed screw rod is driven to rotate relative to the boring rod, and the feed screw nut drives the boring feed.

In one embodiment, the boring device comprises two end sleeves which are copper sleeves, are respectively arranged at the outer ends of the first feed screw rod and the second feed screw rod, and are connected with the outer ends of the first feed screw rod and the second feed screw rod and the boring rod.

In one embodiment, the boring bar device further comprises two boring bar end covers which are round and are connected and matched with the end surfaces of the boring bars, are respectively positioned on the outer sides of the two ends of the boring bar and are fixedly connected with the shaft ends of the boring bar;

the end cover of the boring rod is provided with a through hole matched with the end sleeve in mounting; the end sleeve is mounted in the through hole; the outer end part of the feed screw rod is arranged in the end sleeve;

the tail end of the feed screw rod penetrates through the boring bar end cover and is positioned on the outer side of the boring bar end cover, and the feed screw rod is connected with the feed device and driven to rotate by the feed device.

In one embodiment, a circular truncated cone is arranged on the outer end part of the feed screw rod positioned on the inner side of the boring bar end cover, the diameter of the circular truncated cone is larger than that of the through hole, and the circular truncated cone abuts against the end face of the inner side of the boring bar end cover.

In one embodiment, the device further comprises an intermediate supporting sleeve which is a copper sleeve and is installed and matched with the opening hole;

an installation opening matched with the length of the middle support sleeve in an installation mode is formed in the opening hole at the position, adjacent to the first feed screw rod and the second feed screw rod, of the opening hole; the middle supporting sleeve is fixedly arranged in the opening hole through the mounting opening; the inner side ends of the first feed screw rod and the second feed screw rod are respectively installed in the middle supporting sleeve.

In some embodiments, the boring bar support sleeve comprises two boring bar support sleeves, wherein each boring bar support sleeve is a copper sleeve; and each boring bar support sleeve is respectively and fixedly connected with the boring bar and is relatively and rotatably connected with each support frame.

In some embodiments, the two support frames are a first support frame and a second support frame respectively; the two feed devices are respectively a first feed device and a second feed device; the first feed device is positioned at one end of the boring bar, where the first support frame is arranged;

the rotating device is positioned between the first support frame and the first feed device; the second support frame is positioned at the inner side of the second feed device; the feed screw is positioned between the first support frame and the second support frame.

In some embodiments, the rotating device is a worm gear mechanism comprising a worm wheel and a worm; the worm wheel is coaxially and fixedly connected with the boring rod; the worm is driven by belt transmission.

Compared with the prior art, the utility model has the advantages and positive effects that: the boring machine comprises two feed screw rods and two support frames; the two feed screw rods are respectively used for feeding two boring cutters, so that the two boring cutters can simultaneously work, and long holes and coaxial holes with unequal diameters can be simultaneously machined from two ends; the two support frames are used for supporting two ends of the boring bar, so that the deformation of the boring bar is avoided; according to the utility model, the long holes and the coaxial holes with unequal diameters are processed simultaneously, so that the processing efficiency is improved; the middle of the boring rod is not required to be disassembled, and the boring rod is not deformed, so that the coaxiality of the long hole and the coaxial hole is improved; and the machining precision of the boring hole is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic partial structural view of an embodiment of a boring machine according to the present invention;

FIG. 2 is an enlarged view of a portion of the section A in FIG. 1;

FIG. 3 is a partially enlarged view of the section C of FIG. 1;

FIG. 4 is a sectional view taken along line B of FIG. 1;

FIG. 5 is a schematic cross-sectional view of the intermediate support sleeve construction;

FIG. 6 is a schematic view of a feed nut;

FIG. 7 is a schematic longitudinal sectional view of a feed nut;

FIG. 8 is a schematic sectional view of the structure of the boring cutter connecting piece.

In the figure, the position of the upper end of the main shaft,

1. boring a rod; 2. a feed screw rod; 3. a rotating device; 4. a feed device; 5. a support frame; 6. end covers of the boring bar; 7. boring cutter; 8. a boring cutter connecting piece; 9. feeding a screw nut; 10. a boring bar support sleeve; 20. a middle support sleeve; 30. a key; 40. a sliding sleeve; 50. an end sleeve; 11. an open pore; 111. an opening; 112. an installation port; 12. a keyway; 21. a first feed screw; 22. a second feed screw; 23. a circular truncated cone; 31. a worm gear; 32. a worm; 51. a first support frame; 52. a second support frame; 61. a through hole; 81. a sliding sleeve mounting hole; 82. a connecting part mounting hole; 83. a second lubrication hole; 91. an internal thread; 92. a connecting portion; 201. fixing the ear; 202. a counter bore; 203. a first lubrication hole.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

Referring to fig. 1, 2, 3, 6 and 7, the utility model discloses a boring machine, which comprises a frame, a boring bar 1, two feed screws 2, two support frames 5 and one or two feed nuts 9.

The boring machine is suitable for boring oversized parts, the boring rod 1 is a long boring rod of a cylindrical shaft and is provided with an opening hole 11 penetrating through the boring rod in the axial direction; the open hole 11 includes an opening 111, which is located at one side of the boring bar 1.

The two feed screw rods 2 are respectively a first feed screw rod 21 and a second feed screw rod 22, and the diameter of each feed screw rod is smaller than that of the opening hole 11; the first feed screw 21 and the second feed screw 22 are axially adjacent and rotatably mounted in the open hole 11.

The two support frames 5 are respectively a first support frame 51 and a second support frame 52, are respectively arranged at two end parts of the boring bar 1, are fixedly connected with the frame and are rotatably connected with the boring bar 1, support the boring bar 1 during the rotation operation of the boring bar 1, balance the stress of the boring bar 1 and avoid the relative deformation between the two ends.

The feed nut 9 includes an internal thread 91 and a connecting portion 92; the internal thread 91 is in threaded connection and adaptation with the feed screw rod 2 and is in threaded connection with the first feed screw rod 21 and/or the second feed screw rod 22 respectively; the connecting part 92 is arranged in the opening 111, can move along the length direction of the opening 111, and is used for fixing the boring cutter 7 and carrying the boring cutter 7 to move along the boring bar 1, so that the cutter feeding during the boring operation is realized.

When one of the first feed screw 21 and the second feed screw 22 is provided with the feed screw nut 9 and the boring cutter 7, the boring machine can only bore one hole in the boring operation; when the first feed screw 21 and the second feed screw 22 are both provided with the feed screw nut 9 and the boring cutter 7, the boring machine can simultaneously perform long hole simultaneous operation from two ends or bore hole operation of coaxial holes with different diameters from two ends, so that the boring efficiency is improved, the coaxiality of the long holes and the coaxial holes is improved, the boring operation precision is improved, and the boring quality is improved.

The boring machine comprises two feed screw rods 2 and two support frames 5; the two feed screw rods 2 are respectively used for feeding two boring cutters 7, so that simultaneous operation of the two boring cutters 7 is realized, and long holes and coaxial non-equal-diameter holes are simultaneously machined from two ends; the two support frames 5 are used for supporting two ends of the boring bar 1, so that the deformation of the boring bar 1 is avoided; according to the utility model, the long holes and the coaxial holes with unequal diameters are processed simultaneously, so that the processing efficiency is improved; the middle part does not need to be disassembled, the boring rod 1 does not deform, and the coaxiality of the long hole and the coaxial hole is improved; and the machining precision of the boring hole is improved.

In an embodiment, referring to fig. 1, 2, 3, 4, the boring machine further comprises a rotating device 3 connected to the machine frame.

A key groove 12 penetrating through the boring bar 1 is arranged on one side of the boring bar 1 opposite to the opening hole 11; the rotating device 3 is connected with the boring bar 1 through a key 30, and drives the boring bar 1 to rotate, so that the boring cutter 7 is driven to rotate to perform boring operation.

In an embodiment, referring to fig. 1 and 2, the rotating device 3 is a worm gear mechanism, including a worm wheel 31 and a worm 32; the worm wheel 31 is coaxially and fixedly connected with the boring bar 1 through a key 30; the worm 32 is in transmission connection with the worm wheel 31 and is driven by a belt transmission.

The boring machine of the embodiment drives the rotating device 3 of the worm gear mechanism by belt transmission, so that the boring machine and the driving device can be arranged separately, and the flexibility of mounting and fixing the boring machine and the driving device is improved.

In an embodiment, referring to fig. 1, 2, and 3, the boring machine further includes one or two feed devices 4, which are respectively disposed at one end or both ends of the boring bar 1 and connected to outer end portions of the first feed screw 21 and/or the second feed screw 22, and drive the feed screws 2 to rotate relative to the boring bar 1, so that the feed nuts 9 drive the boring tool 7 to feed.

The boring machine of the embodiment is respectively connected with the two feed screw rods 2 through the two feed devices 4, so that two boring cutters 7 which operate simultaneously are fed respectively, the requirements of different boring operations are met, and the adaptability of the boring machine is improved.

In an embodiment, referring to fig. 1 and 2, the boring machine further includes two end sleeves 50, which are copper sleeves, respectively disposed at the outer ends of the first feed screw 21 and the second feed screw 22, and connected to the outer ends of the first feed screw 21 and the second feed screw 22 and the boring bar 1.

The feed screw 2 of the boring machine of the embodiment is connected with the boring bar 1 through the end sleeve 50, so that the wear resistance between the feed screw 2 and the boring bar 1 is increased, and the service lives of the feed screw 2 and the boring bar 1 are prolonged.

In an embodiment, referring to fig. 1 and 2, the connection of the feed screw 2 to the boring bar 1 through the end sleeve 50 is described in detail as follows.

The boring machine also comprises two boring bar end covers 6 which are round columns connected and matched with the end parts of the boring bars 1, are respectively positioned on the outer sides of the two ends of the boring bars 1 and are fixedly connected with the shaft ends of the boring bars 1.

The boring bar end cover 6 is provided with a through hole 61 matched with the end sleeve 50 in mounting; the end sleeve 50 is mounted in the through hole 61; the outer end of the feed screw 2 is mounted in an end sleeve 50.

The tail end of the feed screw rod 2 penetrates through the boring bar end cover 6 and is positioned on the outer side of the boring bar end cover 6, and the feed screw rod is connected with the feed device 4 and is driven to rotate by the feed device 4.

The boring machine of the embodiment is fixedly connected with the shaft end of the boring bar 1 through the boring bar end cover 6, and a through hole 61 for installing the end sleeve 50 is formed at the end part of the boring bar 1; the processing of the through hole 61 and the installation of the end sleeve 50 and the feed screw rod 2 are facilitated.

Preferably, the boring bar end cover 6 is fixedly connected with the boring bar 1 through a plurality of screws.

In one embodiment, referring to fig. 2, a circular truncated cone 23 having a diameter larger than that of the through hole 61 is provided on an outer end portion of the feed screw 2 located inside the boring bar cover 6, and abuts against an inner side surface of the boring bar cover 6.

In the boring machine of the embodiment, the circular truncated cone 23 with the diameter larger than that of the through hole 61 is arranged at the outer end part of the feed screw rod 2, so that when the feed screw rod 2 is installed in the open hole 11, the circular truncated cone 23 is blocked by the boring rod end cover 6, the feed screw rod 2 cannot move towards the boring rod end cover 6, and the stability and the reliability of the operation of the feed screw rod 2 are ensured.

In one embodiment, referring to fig. 1, 3, 4 and 5, the boring machine further comprises an intermediate support sleeve 20, which is a copper sleeve, fitted into the open hole 11.

An installation opening 112 is arranged on the opening hole 11 at the adjacent position of the first feed screw rod 21 and the second feed screw rod 22; the intermediate support sleeve 20 is fixedly mounted in the open bore 11 via the mounting opening 112.

The inner end parts of the first feed screw 21 and the second feed screw 22 are respectively arranged in the middle support sleeve 20 and are used for supporting the first feed screw 21 and the second feed screw 22 to rotate, the wear resistance of the first feed screw 21 and the second feed screw 22 is improved, and the service life of the first feed screw 21 and the service life of the second feed screw 22 are prolonged.

In one embodiment, referring to fig. 4 and 5, the mounting opening 112 is a square opening with an opening size larger than the diameter of the opening hole 11 and a length matched with the mounting of the middle support sleeve 20; the two sides of the middle support sleeve 20 are provided with fixing lugs 201 which are installed in the installation opening 112 and fixedly connected with the boring bar 1 through screws.

Preferably, a threaded counter bore 202 is arranged in the opening of the mounting opening 112, and the fixing lug 201 of the intermediate support sleeve 20 is fixedly connected with the boring bar 1 through a counter screw.

In one embodiment, referring to fig. 4 and 5, a first lubrication hole 203 is formed in a portion of the intermediate support sleeve 20 located in the opening of the mounting opening 112, and is used for injecting lubricating oil into the sleeve to increase the lubrication degree of the intermediate support sleeve 20.

In some embodiments, referring to fig. 1, 2, the boring machine further includes two boring bar support sleeves 10, which are copper sleeves; the boring bar supporting sleeve 10 is fixedly connected with the boring bar 1 through keys and is relatively rotatably connected with the supporting frame 5, so that the boring bar 1 drives the boring bar supporting sleeve 10 to rotate, the abrasion of the boring bar 1 is reduced, and the service life of the boring bar 1 is prolonged.

In some embodiments, referring to fig. 1 and 2, the two support frames 5 are a first support frame 51 and a second support frame 52; the two feed devices 4 are respectively a first feed device and a second feed device.

The rotating device 3 is positioned between the first support frame 51 and the first feed device; the second support frame 52 is positioned inside the second feeding device; the feed nut 9 is located between the first support frame 51 and the second support frame 52.

In the boring machine of the embodiment, the boring cutter 7 is arranged between the first support frame 51 and the second support frame 52, so that the stroke of the boring cutter 7 is increased as much as possible, the length of a bore hole which can be processed is increased, and the quality of the bore hole is ensured.

In an embodiment, referring to fig. 6, 7 and 8, the boring machine further comprises a boring tool connecting member 8 and a sliding sleeve 40 for connecting the feed nut 9 and the boring tool 7; the boring cutter connecting piece 8 is provided with a sliding sleeve mounting hole 81 matched with the sliding sleeve 40 in mounting and a connecting part mounting hole 82 matched with the connecting part 92 in mounting; the connecting portion 92 is a cylinder having a stepped structure, and a small end thereof is fitted into the connecting portion mounting hole 82. The sliding sleeve 40 is a copper sleeve which is fixedly connected with the sliding sleeve mounting hole 81 of the boring cutter connecting piece 8 and is slidably connected with the boring bar 1.

A first lubrication hole 83 is provided in the boring tool attachment 8 for injecting lubricating oil.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, which are merely for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and operate, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A boring machine, comprising:

a frame;

the two feed screw rods are respectively a first feed screw rod and a second feed screw rod, and are axially adjacent and rotatably arranged in the opening hole;

the two support frames are respectively arranged at two ends of the boring bar, fixedly connected with the rack, rotatably connected with the boring bar and used for supporting the boring bar;

one or two feed nuts including an internal thread, a connection portion; the internal thread is in threaded connection and matched with the feed screw rod; the feed screw nut is in threaded connection with the first feed screw rod and/or the second feed screw rod; the connecting part is arranged in the opening, can move along the length direction of the opening and is used for feeding the boring cutter.

2. The boring machine of claim 1, further comprising a rotating device connected to the frame;

3. The boring machine as claimed in claim 2, further comprising one or two feed devices respectively located at one end or both ends of the boring bar and connected to the outer end of the first feed screw and/or the second feed screw to drive the feed screws to rotate relative to the boring bar, so that the feed screws drive the boring feed.

4. The boring machine as claimed in claim 3, which includes two end sleeves, which are copper sleeves, respectively provided at the outer ends of the first feed screw and the second feed screw, and connected to the outer ends of the first feed screw and the second feed screw and the boring bar.

5. The boring machine as claimed in claim 4 further comprising two boring bar end covers which are circular and adapted to be connected with the end faces of the boring bar, are respectively located on the outer sides of the two ends of the boring bar and are fixedly connected with the shaft ends of the boring bar;

6. The boring machine as claimed in claim 5 wherein a truncated cone is provided on the outer end of the feed screw inside the boring bar end cap, having a diameter greater than the diameter of the through hole, abutting against the inside end face of the boring bar end cap.

7. The boring machine of claim 6, further comprising an intermediate support sleeve, which is a copper sleeve, fitted in the open hole;

8. The boring machine of any one of claims 3 to 7, further comprising two boring bar support sleeves which are copper sleeves; and each boring bar support sleeve is respectively and fixedly connected with the boring bar and is relatively and rotatably connected with each support frame.

9. The boring machine of claim 8, wherein the two support frames are a first support frame and a second support frame, respectively; the two feed devices are respectively a first feed device and a second feed device; the first feed device is positioned at one end of the boring bar, where the first support frame is arranged;

the rotating device is positioned between the first support frame and the first feed device; the second support frame is positioned on the inner side of the second feed device; the feed nut is positioned between the first support frame and the second support frame.

10. The boring machine of claim 9, wherein the rotating device is a worm gear mechanism comprising a worm gear, a worm; the worm wheel is coaxially and fixedly connected with the boring rod; the worm is driven by belt transmission.