CN210059845U - Deep hole fine boring head - Google Patents
Deep hole fine boring head Download PDFInfo
- Publication number
- CN210059845U CN210059845U CN201920391591.8U CN201920391591U CN210059845U CN 210059845 U CN210059845 U CN 210059845U CN 201920391591 U CN201920391591 U CN 201920391591U CN 210059845 U CN210059845 U CN 210059845U
- Authority
- CN
- China
- Prior art keywords
- boring
- boring cutter
- head body
- adjusting rod
- boring head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Drilling And Boring (AREA)
Abstract
The utility model discloses a deep hole fine boring head, the axial front end of the boring head body is closed, the axial rear end is opened, the boring head body is a hollow structure; the middle part of the boring head body is provided with a step, and the boring head is divided into a boring cutter holder positioned at the front part of the boring head body and a boring rod positioned at the rear part of the boring head body; the boring cutter holder is also provided with a boring cutter square hole which radially penetrates through the boring cutter holder, and the floating boring cutter is arranged in the boring cutter square hole; the boring cutter square hole is communicated with the hollow part of the boring head body; the inner side surface of the boring cutter supporting block is of an arc surface structure, the inner side of the boring cutter supporting block is a narrow arc surface matched with the boring cutter seat, and the boring cutter supporting block is arranged on the boring cutter seat through a fastening screw; the rear end of the boring head body is also connected with a connecting threaded rod which is connected with the threads on the outer wall of the threaded rod, and the inner axial hollow part is communicated with the hollow part of the boring head body; the outer diameter of the connecting threaded rod is smaller than that of the boring rod; the boring bar support body comprises an inner support sleeve, an outer support sleeve, a spring piece and a bolt; the inner supporting sleeve is sleeved on the boring bar, the outer supporting sleeve is sleeved outside the inner supporting sleeve, the wall of the outer supporting sleeve is provided with mounting strip slits, and the spring pieces are clamped into the mounting strip slits.
Description
Technical Field
The utility model relates to a bore hole technical field is used in the welding, specifically is to relate to a deep hole finish boring head.
Background
The deep hole boring head is applied to a boring machine and is connected with a rotating shaft of the boring machine to rotate along with the rotating shaft of the boring machine, so that a workpiece is machined (a part of machining modes are that the workpiece rotates, and the boring head does not rotate). The boring head is mainly used for mounting a boring cutter and supporting the boring cutter.
The boring machine has a remarkable characteristic compared with a drilling machine, namely, the precision requirement of the boring machine is much higher. The boring head capable of reducing the precision requirement on the boring machine is beneficial to processing, and the quantity of scrapped products caused by errors of the boring machine is reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a deep hole finish boring head can reduce the requirement to the boring machine precision, is favorable to production.
In order to achieve the above purpose, the technical scheme of the utility model is that: a deep hole fine boring head is provided, wherein the axial front end of a boring head body is closed, the axial rear end of the boring head body is opened, the boring head body is of a hollow structure, and the hollow structure is communicated with the opening at the rear end; the middle part of the boring head body is provided with a step, and the boring head is divided into a boring cutter holder positioned at the front part of the boring head body and a boring rod positioned at the rear part of the boring head body;
the boring cutter holder is also provided with a boring cutter square hole which radially penetrates through the boring cutter holder, and the floating boring cutter is arranged in the boring cutter square hole; the boring cutter square hole is communicated with the hollow part of the boring head body;
the inner side surface of the boring cutter supporting block is of an arc surface structure, the inner side of the boring cutter supporting block is a narrow arc surface matched with the boring cutter seat, and the boring cutter supporting block is arranged on the boring cutter seat through a fastening screw;
the rear end of the boring head body is also connected with a connecting threaded rod which is connected with the threads on the outer wall of the threaded rod, and the inner axial hollow part is communicated with the hollow part of the boring head body; the outer diameter of the connecting threaded rod is smaller than that of the boring rod;
the boring bar support body comprises an inner support sleeve, an outer support sleeve, a spring piece and a bolt; the inner support sleeve is sleeved on the boring bar, and the front end of the inner support sleeve props against the step; the outer supporting sleeve is sleeved outside the inner supporting sleeve, the front end of the outer supporting sleeve also props against the step, mounting strip seams of the spring pieces which are uniformly distributed around the axis are arranged on the wall of the outer supporting sleeve, and the front end of the mounting strip seam is positioned at the front end of the wall of the outer supporting sleeve; the spring leaf is clamped into the mounting strip slit, the length of the outer support sleeve is not less than that of the boring rod, so that the bolt is mounted on the connecting threaded rod, and when the outer support sleeve is tightly supported in a twisting mode, the mounting strip slit on the outer support sleeve tightly clamps the spring leaf between the step and the outer support sleeve.
As a preferred technical scheme, the inner supporting sleeve is a copper sleeve, and the outer supporting sleeve is a nylon sleeve.
As a preferred technical scheme, the boring tool adjusting device also comprises a boring tool adjusting rod, wherein the boring tool adjusting rod is hollow, an opening is formed in the rear end of the boring tool adjusting rod and used for cooling water to enter, threads are formed in the outer wall of the boring tool adjusting rod, threads are formed in the inner wall of the connecting threaded rod, the boring tool adjusting rod penetrates into the connecting threaded rod and is connected with the threaded rod in a threaded manner, the front end of the boring tool adjusting rod extends into the boring head body, and the relative position of the front end of the boring tool adjusting rod in the boring head body can;
the boring cutter adjusting rod is provided with a round table structure, and the two sides of the round table of the boring cutter adjusting rod are the front part of the boring cutter adjusting rod and the rear part of the boring cutter adjusting rod;
the floating boring cutter comprises two separated boring cutter bodies, one side of the boring cutter body, which is positioned in the boring head body, is supported by a boring cutter adjusting rod, and the other side of the boring cutter body, which corresponds to the boring cutter body, extends out of the boring cutter body and is a cutting edge.
As a preferred technical scheme, the smaller bottom surface of the circular truncated cone structure is close to the front part of the boring cutter adjusting rod, and the diameter surface of the circular truncated cone structure is the same as the area of the front part of the boring cutter adjusting rod; the larger bottom surface of the circular truncated cone structure is close to the rear part of the boring cutter adjusting rod and has the same area as the diameter surface of the rear part of the boring cutter adjusting rod.
As a preferred technical scheme, a boring head body corresponding to the boring cutter supporting block is provided with a spring positioning slot for loading a spring. The spring can be completely retracted into the spring positioning groove under the condition of compression;
a screw groove is formed in the boring cutter supporting block, a screw hole is formed in the bottom of the groove, the screw hole in the bottom of the groove is free of threads, the size of the screw hole is larger than the diameter of the screw body, and the size of the screw hole is smaller than the diameter of the screw cap; the screw is positioned in the groove, and the bottom of the screw penetrates through the groove and then is fixed on the boring head body. A space is reserved between the top of the fastening screw and the bottom of the groove.
Drawings
FIG. 1 is a schematic structural view of example 1;
FIG. 2 is a sectional view of embodiment 1;
FIG. 3 is a schematic view of the lengthened boring bar of embodiment 1;
FIG. 4 is a sectional view of example 2;
fig. 5 is a sectional view 2 of embodiment 2.
Wherein the reference numerals are as follows: 1-boring head body, 11-boring tool apron, 12-boring rod, 13-step, 2-boring tool supporting block, 21-screw groove, 3-floating boring tool, 31-boring tool body, 4-connecting threaded rod, 51-inner supporting sleeve, 52-outer supporting sleeve, 521-mounting strip seam, 53-spring leaf, 6-boring tool adjusting rod, 61-round platform structure, 62-water outlet and 7-spring.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Example 1
As shown in fig. 1-2, a deep hole fine boring head comprises a boring head body 1, a floating boring cutter 3, a boring cutter supporting block 2, a boring rod 12 supporting body and a connecting threaded rod 4. The boring head body 1 is closed at the front end of the axis and is opened at the rear end of the axis, and the boring head body 1 is of a hollow structure and is communicated with the rear end opening in a hollow mode.
The middle part of the boring head body 1 is provided with a step 13, and the boring head is divided into a boring cutter seat 11 positioned at the front part of the boring head body 1 and a boring bar 12 positioned at the rear part of the boring head body 1.
The boring tool holder 11 is also provided with a boring tool square hole which radially penetrates through the boring tool holder 11, and the floating boring tool 3 is arranged in the boring tool square hole. The square hole of the boring cutter is communicated with the hollow part of the boring head body 1. The floating boring cutter 3 has two blades penetrating through the square hole of the boring cutter, so that the two corresponding side surfaces of the boring cutter holder 11 have blades.
The boring cutter support blocks 2 are two, the inner side surfaces of the two boring cutter support blocks are narrow arc surfaces matched with the boring cutter seat 11, and the two boring cutter support blocks are fixed on the boring cutter seat 11 through fastening screws. Wherein the boring cutter supporting block 2 and two cutting edges of the floating boring cutter 3 are uniformly distributed at intervals. Namely, two boring cutter supporting blocks 2 are arranged on two sides of any one cutting edge of the floating boring cutter 3. The boring cutter supporting block 2 is used for stabilizing a boring cutter and reducing vibration generated in the process of boring and pulling, and the inner side surface of the boring cutter supporting block 2 is a cambered surface, so that the stability is higher, and the precision requirement on a boring machine is reduced to a certain extent.
In the embodiment, the material of the boring support block 2 is preferably a hard miscellaneous wood strip.
The rear end of the boring head body 1 (namely the rear end of the boring rod 12) is also connected with a connecting threaded rod 4 which is connected with the thread on the outer wall of the threaded rod, and the inner axial hollow part is communicated with the hollow part of the boring head body 1. The outer diameter of the connecting threaded rod 4 is smaller than that of the boring bar 12, and the connecting threaded rod 4 has two functions, namely, the connecting threaded rod is used for being connected with a rotating shaft of a boring machine, and the connecting threaded rod is used for being connected with an external boring bar 12 to increase the length of the boring bar 12, as shown in fig. 3.
The boring bar 12 support body comprises an inner support sleeve 51, an outer support sleeve 52, a spring piece 53 and a bolt; the inner support sleeve 51 is sleeved on the boring bar 12, and the front end of the inner support sleeve 51 is propped against the step 13; the outer supporting sleeve 52 is arranged outside the inner supporting sleeve 51, the front end of the outer supporting sleeve 52 is also propped against the step 13, three mounting strip slits 521 of the spring pieces 53 which are uniformly distributed around the axis are arranged on the wall of the outer supporting sleeve 52, and the front ends of the mounting strip slits 521 are positioned at the front end of the wall of the outer supporting sleeve 52, namely the front ends of the mounting strip slits 521 are not closed. Preferably, the inner support sleeve 51 is a copper sleeve and the outer support sleeve 52 is a nylon sleeve.
The spring leaf 53 is clamped in the mounting slot 521, the front end of the spring leaf 53 is abutted against the step 13, the rear end of the spring leaf 53 is abutted against the rear end of the mounting slot 521, and the length of the outer support sleeve 52 is not less than that of the boring bar 12, so that when the bolt is mounted on the connecting threaded rod 4 and is tightly twisted against the outer support sleeve 52, the mounting slot 521 on the outer support sleeve 52 tightly clamps the spring leaf 53 between the step 13 and the outer support sleeve 52. The inner supporting sleeve 51 plays a supporting role for the spring piece 53 and a protecting role for the boring head body 1, and prevents the spring piece 53 from damaging the boring head body 1 under the condition of stress compression for a long time.
The working principle of the embodiment is that the boring head body 1 and the connecting threaded rod 4 are of a central structure and are communicated with the boring cutter square hole, so that high-pressure cooling water can be sprayed out of the boring head square hole through the boring head body 1 during rotary punching, and the floating boring cutter 3 is located in the floating square hole, so that the floating boring cutter 3 can be well cooled, the deformation of a workpiece is reduced, and the requirement on the precision of a boring machine is reduced to a certain extent.
And when punching, the boring cutter supporting block 2 and the boring bar 12 supporting body respectively support the boring bar 12 in the hole, so that the boring head is more stable, the centrality is better, and the requirement on the precision of the boring machine is reduced. When the deep hole is machined, the length of the boring rod 12 is long, and the vibration strength is higher, and the spring piece 53 on the support body of the boring rod 12 just ensures that the boring rod 12 is always attached to the hole wall, so that the vibration is reduced, and the stability is improved.
Example 2
The difference between this embodiment and embodiment 1 is that in this embodiment, boring holes with different apertures are performed in scientific research, and in the prior art, the above purpose is achieved, mainly by replacing the floating boring cutter 3 and changing the size of the floating boring cutter 3 to achieve boring holes with different apertures.
In the embodiment, a technical scheme is provided, and boring with different apertures can be realized without replacing the floating boring cutter 3, so that one boring head body 1 does not need to be matched with a plurality of boring cutters.
As shown in fig. 4 to 5, in the present embodiment, the floating boring tool 3 includes two separate boring tool bodies 31, and each of the two boring tool bodies 31 has a cutting edge. The two boring cutter bodies 31 are inserted into the boring cutter square holes. And the cutting edges face in the opposite direction.
In the embodiment, the deep hole fine boring head further comprises a boring cutter adjusting rod 6, the boring cutter adjusting rod 6 is hollow, threads are arranged on the outer wall of the rear end of the boring cutter adjusting rod 6, threads are arranged on the inner wall of the connecting threaded rod 4, the boring cutter adjusting rod 6 penetrates into the connecting threaded rod 4 and is connected with the connecting threaded rod 4 in a threaded mode, the front end of the boring cutter adjusting rod 6 extends into the boring head body 1, and the relative position of the front end of the boring cutter adjusting rod 6 in the boring head body 1 can be adjusted through threaded rotation.
It is worth particularly describing the structure of the boring cutter adjusting rod 6, the boring cutter adjusting rod 6 is provided with a circular truncated cone structure 61, and the parts on two sides of the circular truncated cone of the boring cutter adjusting rod 6 are respectively defined as the front part of the boring cutter adjusting rod 6 and the rear part of the boring cutter adjusting rod 6.
The external thread for being in threaded connection with the connecting threaded rod 4 is positioned at the rear part of the boring cutter adjusting rod 6; the front part of the boring cutter adjusting rod 6 is provided with a plurality of water outlets 62 which are uniformly distributed around the axis. In the embodiment, the boring cutter adjusting rod 6 is additionally arranged in the connecting threaded rod 4 and the boring head body 1, so that high-pressure cooling water enters from the rear end of the boring cutter adjusting rod 6 and then is sprayed to a square hole of the boring cutter through the water outlet 62 of the boring cutter adjusting rod 6, and the boring cutter is cooled.
It is worth to be noted that the smaller bottom surface of the circular truncated cone structure 61 is close to the front part of the boring cutter adjusting rod 6, and the diameter surface is the same as the area of the front part of the boring cutter adjusting rod 6; the larger bottom surface of the circular truncated cone structure 61 is close to the rear part of the boring cutter adjusting rod 6, and the area of the larger bottom surface is the same as the area of the diameter surface of the rear part of the boring cutter adjusting rod 6. To facilitate the movement of the boring tool adjusting rod 6 in the boring head body 1 and the connecting threaded rod 4, the size of the part with the external thread at the rearmost end of the boring tool adjusting rod 6 is slightly larger than the rest of the rear part of the boring tool adjusting rod 6, so that the frictional resistance in position adjustment is reduced.
The position of the circular truncated cone structure 61 relative to the boring cutter square hole is changed by the boring cutter adjusting rod 6 through screwing, because the outer wall of the circular truncated cone structure 61 is in a slope shape and penetrates into the boring head body 1, namely the boring cutter square hole is inevitably positioned corresponding to the boring cutter adjusting rod 6, two corresponding sides of the boring cutter adjusting rod 6 respectively support against one side of the two boring cutter bodies 31 positioned in the boring cutter square hole, and the position of the circular truncated cone relative to the boring cutter square hole determines the extension length of the cutting edge of the boring cutter bodies 31, so that the machining aperture is changed. And the thread adjustment rotation mode enables the adjustment of the machining hole diameter to be more easy and accurate.
Of course, since the machining hole diameter changes, the supporting range of the boring support block 2 also needs to be changed, and therefore, in the embodiment, the positioning groove for the spring 7 is arranged on the boring head body 1 corresponding to the boring support block 2 and used for accommodating the spring 7. The spring 7 can be completely retracted into the positioning groove of the spring 7 under the condition of compression.
In this embodiment, the support block 2 is still connected to the boring head body 1 by fastening screws, but the connection manner is designed. The boring cutter supporting block 2 is provided with a screw groove 21, the bottom of the groove is provided with a screw hole, the screw hole at the bottom of the groove is not threaded, and the size of the screw hole is slightly larger than the diameter of the screw body but smaller than the diameter of the screw cap. So that the screw is positioned in the groove, the bottom of the screw passes through the groove and then is fixed on the boring head body 1. However, at this time, a space is left between the top of the fastening screw and the bottom of the groove, and the space is a movable space of the boring cutter supporting block 2 in the radial direction. Namely, the boring cutter supporting block 2 is movably arranged on the boring head body 1 through a fastening screw. The support block 2 can be moved in the radial direction. When the aperture is minimum, the boring cutter supporting block 2 is tightly pressed on the boring head body 1, and the spring 7 is compressed into the positioning groove. When the aperture is relatively large, the spring 7 extends out of the positioning groove, and the elastic force still supports the boring cutter supporting block 2 to enable the boring cutter supporting block to be tightly attached to the aperture wall.
The spring piece 53 itself is elastic for the boring bar 12 support, and thus functions in cooperation.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A deep hole fine boring head is characterized in that the axial front end of a boring head body is closed, the axial rear end of the boring head body is opened, the boring head body is of a hollow structure, and the hollow structure is communicated with the opening at the rear end; the middle part of the boring head body is provided with a step, and the boring head is divided into a boring cutter holder positioned at the front part of the boring head body and a boring rod positioned at the rear part of the boring head body;
the boring cutter holder is also provided with a boring cutter square hole which radially penetrates through the boring cutter holder, and the floating boring cutter is arranged in the boring cutter square hole; the boring cutter square hole is communicated with the hollow part of the boring head body;
the inner side surface of the boring cutter supporting block is of an arc surface structure, the inner side of the boring cutter supporting block is a narrow arc surface matched with the boring cutter seat, and the boring cutter supporting block is arranged on the boring cutter seat through a fastening screw;
the rear end of the boring head body is also connected with a connecting threaded rod which is connected with the threads on the outer wall of the threaded rod, and the inner axial hollow part is communicated with the hollow part of the boring head body; the outer diameter of the connecting threaded rod is smaller than that of the boring rod;
the boring bar support body comprises an inner support sleeve, an outer support sleeve, a spring piece and a bolt; the inner support sleeve is sleeved on the boring bar, and the front end of the inner support sleeve props against the step; the outer supporting sleeve is sleeved outside the inner supporting sleeve, the front end of the outer supporting sleeve also props against the step, mounting strip seams of the spring pieces which are uniformly distributed around the axis are arranged on the wall of the outer supporting sleeve, and the front end of the mounting strip seam is positioned at the front end of the wall of the outer supporting sleeve; the spring leaf is clamped into the mounting strip slit, the length of the outer support sleeve is not less than that of the boring rod, so that the bolt is mounted on the connecting threaded rod, and when the outer support sleeve is tightly supported in a twisting mode, the mounting strip slit on the outer support sleeve tightly clamps the spring leaf between the step and the outer support sleeve.
2. The fine deep-hole boring head as claimed in claim 1, wherein the inner support sleeve is a copper sleeve and the outer support sleeve is a nylon sleeve.
3. The deep hole fine boring head according to claim 1, further comprising a boring cutter adjusting rod, wherein the boring cutter adjusting rod is hollow, an opening is formed at the rear end of the boring cutter adjusting rod and is used for cooling water to enter, threads are formed on the outer wall of the boring cutter adjusting rod, threads are formed on the inner wall of the connecting threaded rod, the boring cutter adjusting rod penetrates into the connecting threaded rod and is in threaded connection with the connecting threaded rod, the front end of the boring cutter adjusting rod extends into the boring head body, and the relative position of the front end of the boring cutter adjusting rod in the boring head body can be adjusted through rotation of the threads;
the boring cutter adjusting rod is provided with a round table structure, and the two sides of the round table of the boring cutter adjusting rod are the front part of the boring cutter adjusting rod and the rear part of the boring cutter adjusting rod;
the floating boring cutter comprises two separated boring cutter bodies, one side of the boring cutter body, which is positioned in the boring head body, is supported by a boring cutter adjusting rod, and the other side of the boring cutter body, which corresponds to the boring cutter body, extends out of the boring cutter body and is a cutting edge.
4. The deep hole fine boring head according to claim 3, wherein the smaller bottom surface of the circular truncated cone structure is adjacent to the front part of the boring cutter adjusting rod, and the diameter surface is the same as the area of the front part of the boring cutter adjusting rod; the larger bottom surface of the circular truncated cone structure is close to the rear part of the boring cutter adjusting rod and has the same area as the diameter surface of the rear part of the boring cutter adjusting rod.
5. The fine deep-hole boring head as claimed in claim 3, wherein the boring head body corresponding to the boring cutter support block is provided with a spring positioning slot for accommodating a spring, and the spring can be completely retracted into the spring positioning slot under the condition of compression;
a screw groove is formed in the boring cutter supporting block, a screw hole is formed in the bottom of the groove, the screw hole in the bottom of the groove is free of threads, the size of the screw hole is larger than the diameter of the screw body, and the size of the screw hole is smaller than the diameter of the screw cap; the screw is positioned in the groove, the bottom of the screw penetrates through the groove and then is fixed on the boring head body, and a space is reserved between the top of the fastening screw and the bottom of the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920391591.8U CN210059845U (en) | 2019-03-26 | 2019-03-26 | Deep hole fine boring head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920391591.8U CN210059845U (en) | 2019-03-26 | 2019-03-26 | Deep hole fine boring head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210059845U true CN210059845U (en) | 2020-02-14 |
Family
ID=69434485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920391591.8U Expired - Fee Related CN210059845U (en) | 2019-03-26 | 2019-03-26 | Deep hole fine boring head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210059845U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110227832A (en) * | 2019-03-26 | 2019-09-13 | 卞直年 | A kind of deep hole fine boring head |
-
2019
- 2019-03-26 CN CN201920391591.8U patent/CN210059845U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110227832A (en) * | 2019-03-26 | 2019-09-13 | 卞直年 | A kind of deep hole fine boring head |
| CN110227832B (en) * | 2019-03-26 | 2024-05-14 | 卞直年 | Deep hole fine boring head |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN219093667U (en) | Composite cutter for cutting | |
| CN210059845U (en) | Deep hole fine boring head | |
| CN110842258B (en) | Method for adjusting cutting diameter of drill bit | |
| CN209094626U (en) | A kind of novel hole location processing composite drill bit | |
| CN206779604U (en) | A kind of ream clamping device | |
| CN210254305U (en) | Boring cutter | |
| CN110227832B (en) | Deep hole fine boring head | |
| CN215315783U (en) | Combined multipurpose metal processing cutter | |
| CN210848486U (en) | Clamping device capable of adjusting cutting diameter of drill bit | |
| CN211638523U (en) | Adjustable high-strength reamer | |
| CN210305885U (en) | Double-station drilling clamp | |
| CN210548191U (en) | Adjustable center height tool apron tool rest of lathe | |
| CN207982801U (en) | A kind of lathe drawing and pulling type indexable tool mounting bracket | |
| CN112792405A (en) | Adjustable high-strength reamer | |
| CN216325172U (en) | Boring and chamfering compound tool | |
| CN217964941U (en) | Positioning tool for square grooved part | |
| CN2936555Y (en) | Side hole drilling clamp for reamer clamping plate | |
| CN213195680U (en) | Corrosion-resistant boring cutter for machining precision hole | |
| CN211939234U (en) | Built-in follow rest | |
| CN210475568U (en) | Combined cutting tool and cutter bar thereof | |
| CN217290463U (en) | Integral multi-aperture fine boring cutter | |
| CN218425641U (en) | Die turning tool | |
| CN207616150U (en) | Three stations position the flat fixture of retainer milling more | |
| CN215431606U (en) | Aircraft nose and digit control machine tool | |
| CN218800470U (en) | Auxiliary supporting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200214 Termination date: 20210326 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |