CN110405230A - Main axle structure - Google Patents
Main axle structure Download PDFInfo
- Publication number
- CN110405230A CN110405230A CN201810386354.2A CN201810386354A CN110405230A CN 110405230 A CN110405230 A CN 110405230A CN 201810386354 A CN201810386354 A CN 201810386354A CN 110405230 A CN110405230 A CN 110405230A
- Authority
- CN
- China
- Prior art keywords
- face
- screw part
- fitting portion
- main axle
- noumenon
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/70—Stationary or movable members for carrying working-spindles for attachment of tools or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/12—Arrangements for cooling or lubricating parts of the machine
- B23Q11/126—Arrangements for cooling or lubricating parts of the machine for cooling only
- B23Q11/127—Arrangements for cooling or lubricating parts of the machine for cooling only for cooling motors or spindles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a kind of main axle structures comprising: a first noumenon one end is equipped with first end face, the first tank and the first fitting portion；One first rotation axis is hubbed in first tank, which is equipped with the first screw part；One first precision nut group is screwed together at first screw part, which includes one first precision nut；First precision nut is equipped with second end face, the second end face and the first end face of the first noumenon are opposite just, there is a small―gap suture between the second end face and the first end face, first precision nut is equipped with the second screw part, second screw part mutually wears and is screwed for first screw part of first rotation axis, second screw part is in internal screw thread shape, the second fitting portion is equipped at the second end face, the first fitting portion phase fitting in the second fitting portion and the first noumenon makes the gap between the second end face and the first end face in circuitous path shape.
Description
Technical field
The present invention relates to a kind of main axle structures.
Background technique
Known to previously, existing main axle structure, as shown in Fig. 9 to Figure 12, Fig. 9 is the stereo decomposing of existing main axle structure
Figure, Figure 10 is the front view of existing main axle structure, and Figure 11 is the cross-sectional view in Figure 10 at A-A, and Figure 12 is the amplification in Figure 11 at B
Figure, the Patent Case structure are:
One second ontology group 70, the second ontology group 70 include the second ontology 71, the second rotation axis 72, the second front cover 73 and
Second precision nut 74；
Second ontology 71 is set on toolroom machine, which is equipped with the second tank 711, which is in
Through channel-shaped；
Second rotation axis 72 is hubbed in second tank 711 of second ontology 71,72 one end of the second rotation axis
Equipped with the 4th screw part 721, the 4th screw part 721 is in external screw thread shape；
The fixed an end portion for being incorporated into second ontology 71 of second front cover 73, second front cover 73 is for second rotation
72 one end of axis, which protrudes out, to be pivoted；
Second precision nut 74 is incorporated into the another end of second ontology 71, second precision nut 74 and the 4th
Screw part 721 is screwed, and second precision nut 74 and second front cover 73 are mutually separate, which is in torus
Shape, second precision nut 74 are in internal screw thread shape.
But the missing of the existing structure is:
It please be aided with shown in Figure 10 to Figure 12, when second rotation axis 72 is with cutter quick rotation, the second accurate spiral shell
Cap 74 can also rotate and quick rotation with second rotation axis 72, be in be pivoted between second precision nut 74 and second ontology 71
State centainly has gap between the two, that is, is in loose fit structure between the two, will use each liquid between the cutter and workpiece, such as
Cutting fluid or coolant liquid etc., each liquid i.e. can by the gap between second precision nut 74 and second ontology 71 enter this second
In ontology 71, plural bearing and necessary component can be generally equipped in second ontology 71, each element in second ontology 71 by
It gets rusty easily after tide, the speed for rotating the main axle structure, which reduces, even to be damaged.
In view of the missing of above-mentioned existing structure, the present inventor is by manufacture engaged in relevant industries for many years, production and design
Experience has the product of a main axle structure that can solve existing drawback to come out finally.
Summary of the invention
There is provided a kind of main axle structure it is an object of the invention to solve above-mentioned technical problem, the main axle structure this second
Fitting portion and the first fitting portion phase fitting, the gap between the second fitting portion and the first fitting portion are in circuitous path shape, respectively
Liquid or cutting fluid enter the intracorporal probability of the first by the gap and are greatly reduced.
In order to achieve the above objectives, the invention adopts the following technical scheme:
A kind of main axle structure comprising:
One the first noumenon, the first noumenon are mounted on various toolroom machine or various processing machine tool, the first noumenon one end
Equipped with first end face, the first tank is equipped in the first noumenon, which is in run through channel-shaped, and the is equipped at the first end face
One fitting portion；
One first rotation axis, first rotation axis are hubbed in first tank of the first noumenon, first rotation axis
In quick rotation in first tank, which is equipped with the first screw part, which is in external screw thread shape；
One first precision nut group, the first precision nut group are screwed together at first screw part, first precision nut
Group includes one first precision nut；
First precision nut be equipped with second end face, the second end face is opposite with the first end face just, the second end face and
There is a gap, which is equipped with the second screw part, which first screws togather for this between the first end face
Portion mutually wears and is screwed, which is in internal screw thread shape, is equipped with the second fitting portion at the second end face, and this second set
The first fitting portion phase fitting in conjunction portion and the first noumenon, so that the gap between the second end face and the first end face is in circuitous
Circuit diameter shape.
The first end face is in planar.
First fitting portion includes the first projecting ring section, which is in torus shape, and first projecting ring section is convex
Outside for first end face；The second fitting portion includes the first ring groove, which is mutually installed with for first projecting ring section,
Gap between first ring groove and first projecting ring section is in circuitous path shape.
First screw part, which is that part is convex, to be exposed to outside the first end face.
The main axle structure is additionally provided with one first front cover, the fixed another end for being incorporated into the first noumenon of first front cover, should
First front cover is protruded out for the first rotation axis one end and is pivoted, and first front cover is mutually remote with the first fitting portion and first screw part
From first front cover is in torus shape.
The first precision nut group is protruded out for first screw part part.
Second screw part is equipped with plural engaging portion, which annularly arranges shape, and each engaging portion is in
Circle perforated, the engaging portion are in internal screw thread shape；The first precision nut group is equipped with plural pressuring piece, which is located in the knot
At conjunction portion, which is equipped with third screw part, which matches with second screw part, which screws togather
Portion compels to be pressed on first screw part, and the quantity of the pressuring piece cooperates the quantity of the engaging portion；The first precision nut group is equipped with
Plural screw piece, the screw piece are locked at the engaging portion, which is pressed against on the pressuring piece, so that the third screws togather
Portion compels to be pressed on first screw part, which is in external screw thread shape, the quantity of the screw piece and the engaging portion and the pressuring piece
Cooperating number close.
The axle center of the engaging portion and the axle center of second screw part have an angle.
The first fitting portion of the first noumenon has further included the second ring groove, which sets first bulge loop
On the outside of portion, which is in recessed annulus channel-shaped, and the second fitting portion of first precision nut has further included the second bulge loop
Portion, second projecting ring section are located at second ring groove, which protrudes from outside the second end face, first bulge loop
Gap between portion, second ring groove, first ring groove and second projecting ring section is in circuitous path shape.
Second projecting ring section end is equipped with the first lead angle, and it is more for being installed with which forms bigger gap
Liquid.
Beneficial effects of the present invention: the second fitting portion of the invention and the first fitting portion phase fitting, when the first rotation axis band
When cutter quick rotation, the first precision nut group can also rotate and quick rotation, first end face and second with the first rotation axis
Gap is had between end face, will use each liquid such as cutting fluid or coolant liquid etc. between cutter and workpiece, because of the second fitting portion and first
Gap system between fitting portion enters the intracorporal probability of the first, that is, big by the gap in circuitous path shape, each liquid or cutting fluid
To reduce.The second end face of first precision nut be equipped with the first fitting portion, processing the first fitting portion can be used lathe process, first
Precision nut not will increase how many processing cost, and the first precision nut group also has the first precision in addition to group sets the first rotation axis
Nut has the effect of gap to form circuitous path, and the first precision nut group has double effects.
Detailed description of the invention
Fig. 1 is the stereogram exploded view of main axle structure of the present invention.
Fig. 2 is the stereogram exploded view of the first precision nut of main axle structure group of the present invention.
Fig. 3 is the three-dimensional combination figure of the first precision nut of main axle structure group of the present invention.
Fig. 4 is the three-dimensional combination figure of main axle structure of the present invention.
Fig. 5 is the front view of main axle structure of the present invention.
Fig. 6 is the cross-sectional view in Fig. 5 of the present invention at A-A.
Fig. 7 is the enlarged drawing in Fig. 6 of the present invention at B.
Fig. 8 is the cutaway view Amplified image of second embodiment of the invention.
Fig. 9 is the stereogram exploded view of existing main axle structure.
Figure 10 is the front view of existing main axle structure.
Figure 11 is the cross-sectional view in Figure 10 at A-A.
Figure 12 is the enlarged drawing in Figure 11 at B.
10 the first noumenon, 100 first end face
11 first tank, 12 first fitting portion
121 first projecting ring section, 122 second ring groove
20 first rotation axis, 21 first screw part
30 first front covers
40 first precision nut group, 41 first precision nut
410 second end face, 411 second screw part
412 second fitting portion, 4,121 first ring groove
4122 second projecting ring section, 4,123 first lead angle
413 engaging portions
42 pressuring piece, 421 third screw part
43 screw pieces
70 second ontology group, 71 second ontology
711 second tank, 72 second rotation axis
721 the 4th screw part, 73 second front cover
74 second precision nuts
Specific embodiment
In order to be understood completely effect of the invention, schema and figure number is hereby cooperated to be illustrated in regard to structure of the invention, composition
Afterwards, only person as described below is only embodiment used to explain the present invention, is not intended to accordingly do in any form the present invention
Limitation is with all under spirit of the invention, and made any modification change should all belong to the scope of protection of the present invention.
Referring initially to shown in Fig. 1 to Fig. 3, Fig. 1 is the stereogram exploded view of main axle structure of the present invention, and Fig. 2 is master of the present invention
The stereogram exploded view of the first precision nut of axle construction group 40, Fig. 3 are the solids of the first precision nut of main axle structure group 40 of the present invention
Constitutional diagram, the present invention relates to a kind of main axle structures comprising:
One the first noumenon 10, the first noumenon 10 are mounted on various toolroom machine or various processing machine tool, the first noumenon
10 one end are equipped with first end face 100, which is equipped with the first tank 11 in planar in the first noumenon 10, this
One tank 11 is in run through channel-shaped, is equipped with the first fitting portion 12 at the first end face 100, which includes first convex
Ring portion 121, first projecting ring section 121 are in torus shape, which protrudes from outside first end face 100；
One first rotation axis 20, first rotation axis 20 are hubbed in first tank 11 of the first noumenon 10, this
One rotation axis 20 is equipped with the first screw part 21 in quick rotation in first tank 11,20 one end of the first rotation axis, this first
21 part of screw part is convex to be exposed to outside the first end face 100, which is in external screw thread shape；
One first front cover 30, the fixed another end for being incorporated into the first noumenon 10 of first front cover 30, first front cover 30 supply
First rotation axis, 20 one end, which protrudes out, to be pivoted, and first front cover 30 is mutually remote with the first fitting portion 12 and first screw part 21
From first front cover 30 is in torus shape；
One first precision nut group 40 please be aided with shown in Fig. 2 and Fig. 3, the first precision nut group 40 be screwed together in this first
At screw part 21, which is protruded out for 21 part of the first screw part, the first precision nut group 40 with should
First front cover 30 is mutually separate, which includes one first precision nut 41, plural pressuring piece 42 and plural spiral shell
Component 43；
First precision nut 41 is equipped with second end face 410, the first end of the second end face 410 and the first noumenon 10
Face 100 relatively just, has a small―gap suture between the second end face 410 and the first end face 100, which is equipped with
Second screw part 411, second screw part 411 wear and are screwed for 21 phase of the first screw part of first rotation axis 20,
Second screw part 411 is in internal screw thread shape, is equipped with the second fitting portion 412 at the second end face 410, the second fitting portion 412
With the 12 phase fitting of the first fitting portion of the first noumenon 10, the gap between the second end face 410 and the first end face 100 is set to be in
Circuitous path shape, the second fitting portion 412 are equipped with the first ring groove 4121, which supplies first projecting ring section
121 phases are installed with, and the gap between first ring groove 4121 and first projecting ring section 121 is in circuitous path shape, second screw part
411 are equipped with plural engaging portion 413, and annularly arrangement shape, each engaging portion 413 are in circle perforated for the plural number engaging portion 413, should
Engaging portion 413 is in internal screw thread shape, and the axle center of the engaging portion 413 and the axle center of second screw part 411 have an angle, this first
Precision nut 411 also has referred to as the first lock nut；
The pressuring piece 42 is located at the engaging portion 413, which is equipped with third screw part 421, the third
Screw part 421 is matched with second screw part 411, which compels to be pressed on first screw part 21, the compressing
The quantity of part 42 cooperates the quantity of the engaging portion 413；
The screw piece 43 is locked at the engaging portion 413, which is pressed against on the pressuring piece 42, makes the third spiral shell
Conjunction portion 421 compels to be pressed on first screw part 21, which is in external screw thread shape, and the quantity system of the screw piece 43 is in conjunction with this
The cooperating number of portion 413 and the pressuring piece 42 closes.
It please refers to shown in Fig. 4 to Fig. 7, Fig. 4 is the three-dimensional combination figure of main axle structure of the present invention, and Fig. 5 is main shaft knot of the present invention
The front view of structure, Fig. 6 are the cross-sectional views in Fig. 5 of the present invention at A-A, and Fig. 7 is the enlarged drawing in Fig. 6 of the present invention at B, can by diagram
It is best illustrated in, which is hubbed at first tank 11 of the first noumenon 10, the fixed knot of the first front cover 30
Together in 10 an end portion of the first noumenon, which is set in first rotation axis 20, first rotation
Axis 20 is arranged in first tank 11, first front cover 30 and the first precision nut group 40, and second screw part 411 is for being somebody's turn to do
First screw part, 21 phase, which is worn, to be screwed togather, the second fitting portion 412 and the 12 phase fitting of the first fitting portion, first ring groove 4121
Be installed with for 121 phase of the first projecting ring section, which is located at the engaging portion 413, the third screw part 421 and this second
Screw part 411 matches, i.e., the third screw part 421 is also screwed with first screw part 21, which is locked on this
At engaging portion 413, which is pressed against on the pressuring piece 42.
It please refers to shown in Fig. 8, Fig. 8 is the cutaway view Amplified image of second embodiment of the invention, can be best illustrated in by diagram, this
The first fitting portion 12 of one ontology 10 includes the first projecting ring section 121 and the second ring groove 122, which sets this
First projecting ring section, 121 outside, second ring groove 122 are in recessed annulus channel-shaped, the second fitting portion of first precision nut 41
412 include the first ring groove 4121 and the second projecting ring section 4122, which is located in second ring groove 122
Place, which protrudes from outside the second end face 410, first projecting ring section 121, second ring groove 122, this
Gap between one ring groove 4121 and second projecting ring section 4122 is in circuitous path shape, which is equipped with
First lead angle 4123, first lead angle 4123 form bigger gap for being installed with more liquid, which makes
The second fitting portion 412 is easier to take the form of inclined plane with the 12 phase fitting of the first fitting portion, first lead angle 4123.
There are many structures for the first precision nut group 40, and can not be described in detail one by one, as long as therefore being equipped with the second fitting portion
Phase fitting between 412 and the first fitting portion 12, and the gap between the second fitting portion 412 and the first fitting portion 12 constitutes detour
Path shape should all belong to protection scope of the present invention.
The advantages of main axle structure of the present invention, is:
1, please be aided with shown in Fig. 7, the second fitting portion 412 of first precision nut 41 and the first noumenon 10 this
One fitting portion, 12 phase fitting, when first rotation axis 20 is with cutter quick rotation, which also can be with
First rotation axis 20 rotation and quick rotation, gap is had between the first end face 100 and the second end face 410, the cutter with
It will use each liquid such as cutting fluid or coolant liquid etc. between workpiece, between the second fitting portion 412 and the first fitting portion 12
The probability that gap is entered in the first noumenon 10 in circuitous path shape, each liquid or cutting fluid by the gap is greatly reduced.
2, the second end face 410 of first precision nut 41 is equipped with the first fitting portion 412 and processes the first fitting portion
412 usable lathe process, first precision nut 41 not will increase how many processing cost, which removes group
If outside first rotation axis 20, also there is the effect of gap to form circuitous path with first precision nut 41, this first
Precision nut group 40 has double effects.
3, first ring groove 4121 in the second fitting portion 412 is installed with for 121 phase of the first projecting ring section, and first ring is recessed
Gap between slot 4121 and first projecting ring section 121 is in circuitous path shape, and each liquid is by the first end face 100 and the second end face
The probability that gap between 410 enters the main axle structure is greatly reduced.
4, first projecting ring section 121, second ring groove 122, first ring groove 4121 and second projecting ring section 4122
Between gap be in circuitous path shape, each liquid enter the main axle structure probability i.e. be greatly reduced.
Therefore main axle structure of the invention has industry applications, novelty and progressive, can really meet patent of invention
Apply for important document, files an application in accordance with the law.
Claims (10)
1. a kind of main axle structure, it is characterised in that: comprising:
One the first noumenon, the first noumenon are mounted on various toolroom machine or various processing machine tool, which is equipped with
First end face, the first noumenon is interior to be equipped with the first tank, which is in run through channel-shaped, is equipped with first set at the first end face
Conjunction portion；
One first rotation axis, first rotation axis are hubbed in first tank of the first noumenon, and first rotation axis is in this
Quick rotation in first tank, the first rotation axis one end are equipped with the first screw part, which is in external screw thread shape；
One first precision nut group, the first precision nut group are screwed together at first screw part, the first precision nut group packet
Include one first precision nut；
First precision nut is equipped with second end face, and the second end face is opposite with the first end face just, the second end face with this
There is a gap, which is equipped with the second screw part, which supplies the first screw part phase between one end face
It wears and is screwed, which is in internal screw thread shape, is equipped with the second fitting portion at the second end face, the second fitting portion
With the first fitting portion phase fitting of the first noumenon so that gap between the second end face and the first end face is in detour road
Diameter shape.
2. main axle structure as described in claim 1, it is characterised in that: the first end face is in planar.
3. main axle structure as described in claim 1, it is characterised in that: first fitting portion includes the first projecting ring section, should
First projecting ring section is in torus shape, which protrudes from outside first end face；The second fitting portion includes that the first ring is recessed
Slot, first ring groove are mutually installed with for first projecting ring section, and the gap between first ring groove and first projecting ring section is in detour
Path shape.
4. main axle structure as described in claim 1, it is characterised in that: first screw part, which is that part is convex, is exposed to the first end
Outside face.
5. main axle structure as described in claim 1, it is characterised in that: be additionally provided with one first front cover, the fixed knot of the first front cover
Together in the another end of the first noumenon, which protrudes out and is pivoted for the first rotation axis one end, first front cover and this first
Fitting portion and first screw part are mutually separate, which is in torus shape.
6. main axle structure as described in claim 1, it is characterised in that: the first precision nut group supplies the first screw part portion
Part protrudes out.
7. main axle structure as described in claim 1, it is characterised in that: second screw part is equipped with plural engaging portion, should
Plural engaging portion annularly arranges shape, and each engaging portion is in circle perforated, which is in internal screw thread shape；First precision nut
Group is equipped with plural pressuring piece, which is located at the engaging portion, which is equipped with third screw part, the third spiral shell
Conjunction portion is matched with second screw part, which compels to be pressed on first screw part, the quantity cooperation of the pressuring piece
The quantity of the engaging portion；The first precision nut group is equipped with plural screw piece, which is locked at the engaging portion, this is screwed togather
Part is pressed against on the pressuring piece, so that the third screw part compels to be pressed on first screw part, which is in external screw thread shape,
The cooperating number of the quantity of the screw piece and the engaging portion and the pressuring piece closes.
8. main axle structure as claimed in claim 7, it is characterised in that: the axis in the axle center of the engaging portion and second screw part
The heart has an angle.
9. main axle structure as claimed in claim 3, it is characterised in that: the first fitting portion of the first noumenon has further included
Second ring groove, second ring groove are set on the outside of first projecting ring section, which is in recessed annulus channel-shaped, first precision
The second fitting portion of nut has further included the second projecting ring section, which is located at second ring groove, this second
Projecting ring section protrudes from outside the second end face, first projecting ring section, second ring groove, first ring groove and second projecting ring section
Between gap be in circuitous path shape.
10. main axle structure as claimed in claim 9, it is characterised in that: second projecting ring section end is equipped with the first lead angle,
First lead angle is to form bigger gap for being installed with more liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810386354.2A CN110405230A (en) | 2018-04-26 | 2018-04-26 | Main axle structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810386354.2A CN110405230A (en) | 2018-04-26 | 2018-04-26 | Main axle structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110405230A true CN110405230A (en) | 2019-11-05 |
Family
ID=68345690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810386354.2A Pending CN110405230A (en) | 2018-04-26 | 2018-04-26 | Main axle structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110405230A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5930634A (en) * | 1982-08-06 | 1984-02-18 | Canon Inc | Machining tool holder for machine tool |
| CN202356640U (en) * | 2011-11-26 | 2012-08-01 | 广州市昊志机电股份有限公司 | Close coupled ball spindle of high-speed machine tool |
| CN205704045U (en) * | 2016-05-05 | 2016-11-23 | 张皓哲 | Tool construction |
| CN106994533A (en) * | 2016-07-20 | 2017-08-01 | 上海灿裕贸易有限公司 | Pipe cutter structure convenient for replacing cutter body |
| CN206455183U (en) * | 2017-01-12 | 2017-09-01 | 御成工业有限公司 | Main axle structure |
-
2018
- 2018-04-26 CN CN201810386354.2A patent/CN110405230A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5930634A (en) * | 1982-08-06 | 1984-02-18 | Canon Inc | Machining tool holder for machine tool |
| CN202356640U (en) * | 2011-11-26 | 2012-08-01 | 广州市昊志机电股份有限公司 | Close coupled ball spindle of high-speed machine tool |
| CN205704045U (en) * | 2016-05-05 | 2016-11-23 | 张皓哲 | Tool construction |
| CN106994533A (en) * | 2016-07-20 | 2017-08-01 | 上海灿裕贸易有限公司 | Pipe cutter structure convenient for replacing cutter body |
| CN206455183U (en) * | 2017-01-12 | 2017-09-01 | 御成工业有限公司 | Main axle structure |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20191105 |
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| WD01 | Invention patent application deemed withdrawn after publication |