CN208303981U - A kind of five axis carving and milling machines - Google Patents
A kind of five axis carving and milling machines Download PDFInfo
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- CN208303981U CN208303981U CN201820559760.XU CN201820559760U CN208303981U CN 208303981 U CN208303981 U CN 208303981U CN 201820559760 U CN201820559760 U CN 201820559760U CN 208303981 U CN208303981 U CN 208303981U
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- pedestal
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Abstract
The utility model discloses a kind of five axis carving and milling machines, including casting pedestal fuselage, the casting pedestal fuselage right lateral surface is equipped with cutting fluid fuel tank, the casting pedestal fuselage upper surface right end is equipped with body drain bucket, fixed a pair of four or five axis of the casting pedestal fuselage upper surface right end increase block casting part, a pair of four or five axis, which is increased, is fixed with C axis on block casting part, the C axis is equipped with C axis quick chuck, part is increased equipped with BC axis in front end on the C axis, rear end is equipped with five axis vertical members on the C axis, the five axis vertical member is equipped with B axle speed reducer, B axle servo motor is installed on the B axle speed reducer, the casting pedestal fuselage upper surface and it is located at four or five axis and increases fixed a pair of of the Y-axis casting in block casting part left end, the casting pedestal fuselage upper surface and it is located between a pair of Y-axis casting and is equipped with servo tool magazine.The utility model has the beneficial effects that of simple structure and strong practicability.
Description
Technical field
The utility model relates to five axis carving and milling machine fields, especially a kind of five axis carving and milling machines.
Background technique
Carving and milling machine is one kind of numerically-controlled machine tool, it is considered that is using small cutter, high-power and high-speed main spindle motor number
Control milling machine.The rigid of existing base casting is inadequate, in addition screw rod is directly through small, accuracy class is not achieved, and machine at high speeds moves
Vibration and resonance will be generated when dynamic, in process precision also reach should not desired tolerance value, simultaneously because structure limitation only
Ting model servo motor can be filled, when machine tooling has calf and draws a hand-cart phenomenon, and traditional casting does not change in configuration aspects
Into the sagging tolerance of machine beginning and end is excessive, and precision cannot control, and the recycling of machine oil circuit cannot be integrally cast, more
Rare leak oil leakage phenomenon, causes machine tool working efficiency low, wastes material, and therefore, it is necessary to design one kind novel high-precision five
Axis carving and milling machine Building X solves the above problems.
Summary of the invention
Purpose of the utility model is to solve the above problems, devise a kind of five axis carving and milling machines.
Realize that above-mentioned purpose the technical solution of the utility model is, a kind of five axis carving and milling machines, including casting pedestal fuselage, institute
Casting pedestal fuselage right lateral surface is stated equipped with cutting fluid fuel tank, the casting pedestal fuselage upper surface right end is equipped with body drain bucket, institute
It states fixed a pair of four or five axis of casting pedestal fuselage upper surface right end and increases block casting part, a pair of four or five axis is increased solid on block casting part
Surely there is C axis, the C axis is equipped with C axis quick chuck, and part is increased equipped with BC axis in front end on the C axis, and rear end is set on the C axis
There are five axis vertical members, the five axis vertical member is equipped with B axle speed reducer, installs B axle servo motor, institute on the B axle speed reducer
It states casting pedestal fuselage upper surface and is located at four or five axis and increase fixed a pair of of the Y-axis casting in block casting part left end, the casting pedestal machine
Surface and it is located between a pair of Y-axis casting with it and is equipped with servo tool magazine, the casting pedestal fuselage upper surface and is located at one
To fixing tool magazine cylinder stressed plate between Y-axis casting, the fixed high-precision line rail of Y-axis in each Y-axis casting upper surface, described in a pair
Y-axis casting crossbeam is fixed on the high-precision line rail of Y-axis, the Y-axis casting crossbeam right lateral surface upper end is equipped with the high-precision line rail of X-axis, the Y
Axle casting part crossbeam rear end is equipped with X-axis casting crossbeam, and the X-axis casting crossbeam right lateral surface is equipped with multiple X-axis line rail pressure codes, described
Y-axis casting crossbeam right lateral surface lower end fix X-axis servo motor, the Y-axis casting crossbeam right lateral surface and be located at X-axis servo horse
Up to the fixed X-axis screw rod tail end fixing seat in front end, the high-precision grinding screw rod of X-axis, the X-axis servo are installed on the X-axis servo motor
Motor is connected by the high-precision grinding screw rod of X-axis with X-axis screw rod tail end fixing seat, and the Y-axis casting crossbeam right end is equipped with Z axis machine
Body casting fixed block, the Z axis fuselage casting upper end of fixing block install Z axis servo motor, and the Z axis fuselage casting fixed block is right
End is equipped with Z axis fuselage casting sliding shoe, is fixed with main shaft claming part, the main shaft claming on the Z axis fuselage casting sliding shoe
High-speed electric main shaft is installed in part upper end, and high-speed high-power electro spindle, the high-speed high-power electricity are installed in main shaft claming part lower end
High speed cutter head is installed on main shaft, the casting pedestal fuselage upper surface and is located between a pair of of Y-axis casting and is equipped with Y-axis servo electricity
Machine.
The Z axis fuselage casting fixed block left-hand face is equipped with multiple high-precision sliding blocks, and each high-precision sliding block is installed on
On corresponding X-axis line rail pressure code.
The X-axis screw rod tail end fixing seat is equipped with screw rod tail end fixing bearing, and the high-precision grinding screw rod end of X-axis is solid
Due in screw rod tail end fixing bearing.
The casting pedestal fuselage lower surface is equipped with two pairs of pedestal under-chassis.
The casting pedestal fuselage front and rear surfaces are machined with a pair of of crane preformed hole.
Fixing bearing connector on the five axis vertical member, the B axle speed reducer are fixed on five axis by bearing connection
On vertical member.
The five axis carving and milling machine of one kind made using the technical solution of the utility model, each axle casting part integrally casting in the present apparatus
It forms, structure is optimized, and left and right is intermediate all to increase reinforcing rib in forced position, and axial bearing capacity and rigidity have very
Big promotion, transmission aspect have changed greatly the straight warp of screw rod and have used high smooth grinding grade screw rod, and the structure of fixed position has also been made
It improves, line rail is that have flange and press the fixed form of code fixation and screw rod formed by heavy cutting grinding machine structure design, machine
Bed work in-process endurance is more stable, and the equipment increases the driving power of motor in terms of servo drive, and processing is than same
Money type speed is fast, it is higher to be accurately positioned, while machine oil piping system is cast, and there will be no leakages for surrounding accumulator tank and funnel
Phenomena such as water oil leak, material loss is reduced, improves the qualification rate of product.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of five axis carving and milling machine described in the utility model；
Fig. 2 is a kind of rearview of five axis carving and milling machine described in the utility model；
Fig. 3 is a kind of side view of five axis carving and milling machine described in the utility model；
In figure, 1, casting pedestal fuselage；2, cutting fluid fuel tank；3, body drain bucket；4, four or five axis increase block casting part；5, C axis；6,
C axis quick chuck；7, BC axis increases part；8, five axis vertical member；9, B axle speed reducer；10, B axle servo motor；11, Y-axis casting；
12, servo tool magazine；13, tool magazine cylinder stressed plate；14, the high-precision line rail of Y-axis；15, Y-axis casting crossbeam；16, the high-precision line rail of X-axis；
17, X-axis servo motor；18, X-axis screw rod tail end fixing seat；19, the high-precision grinding screw rod of X-axis；20, Z axis fuselage casting fixed block；
21, Z axis servo motor；22, Z axis fuselage casting sliding shoe；23, main shaft claming part；24, high-speed electric main shaft；25, high-speed high-power
Electro spindle；26, Y-axis servo motor；27, pedestal under-chassis；28, crane preformed hole；29, bearing connection；30, high-precision sliding block；31,
X-axis casting crossbeam；32, X-axis line rail pressure code；33, high speed cutter head；34, screw rod tail end fixing bearing.
Specific embodiment
The utility model is specifically described with reference to the accompanying drawing, as shown in Figure 1-3, a kind of five axis carving and milling machines, including
Casting pedestal fuselage 1,1 right lateral surface of casting pedestal fuselage are equipped with cutting fluid fuel tank 2, table on the casting pedestal fuselage 1
Face right end is equipped with body drain bucket 3, and fixed a pair of four or five axis of the 1 upper surface right end of casting pedestal fuselage increase block casting part 4, Yi Duisuo
It states four or five axis and increases and be fixed with C axis 5 on block casting part 4, the C axis 5 is equipped with C axis quick chuck 6, and front end is equipped on the C axis 5
BC axis increases part 7, and rear end is equipped with five axis vertical members 8 on the C axis 5, and the five axis vertical member 8 is equipped with B axle speed reducer 9, institute
It states on B axle speed reducer 9 installation B axle servo motor 10,1 upper surface of casting pedestal fuselage and is located at four or five axis and increases block casting part
Fixed a pair of of the Y-axis casting 11 in 4 left ends, 1 upper surface of casting pedestal fuselage and being located between a pair of Y-axis casting 11 are equipped with
Servo tool magazine 12,1 upper surface of casting pedestal fuselage and is located between a pair of of Y-axis casting 11 and fixes tool magazine cylinder stressed plate
13, the high-precision line rail 14 of Y-axis is fixed in each 11 upper surface of Y-axis casting, and Y-axis casting is fixed on a pair of high-precision line rail 14 of Y-axis
Part crossbeam 15, the 15 right lateral surface upper end of Y-axis casting crossbeam are equipped with the high-precision line rail 16 of X-axis, 15 rear end of Y-axis casting crossbeam
Equipped with X-axis casting crossbeam 31,31 right lateral surface of X-axis casting crossbeam is equipped with multiple X-axis line rail pressure codes 32, the Y-axis casting
15 right lateral surface lower end of crossbeam fix X-axis servo motor 17,15 right lateral surface of Y-axis casting crossbeam and be located at X-axis servo horse
Up to the fixed X-axis screw rod tail end fixing seat 18 in 17 front ends, the high-precision grinding screw rod 19 of X-axis is installed on the X-axis servo motor 17, it is described
X-axis servo motor 17 is connected by the high-precision grinding screw rod 19 of X-axis with X-axis screw rod tail end fixing seat 18, the Y-axis casting crossbeam
15 right ends are equipped with Z axis fuselage casting fixed block 20, and Z axis servo motor 21, institute are installed in 20 upper end of Z axis fuselage casting fixed block
It states 20 right end of Z axis fuselage casting fixed block and is equipped with Z axis fuselage casting sliding shoe 22, consolidate on the Z axis fuselage casting sliding shoe 22
Surely there is main shaft claming part 23, high-speed electric main shaft 24,23 lower end of the main shaft claming part peace are installed in 23 upper end of main shaft claming part
High-speed high-power electro spindle 25 is filled, high speed cutter head 33, the casting pedestal fuselage 1 are installed on the high-speed high-power electro spindle 25
Upper surface and it is located between a pair of of Y-axis casting 11 and is equipped with Y-axis servo motor 26；The 20 left side table of Z axis fuselage casting fixed block
Face is equipped with multiple high-precision sliding blocks 30, and each high-precision sliding block 30 is installed on corresponding X-axis line rail pressure code 32；The X-axis screw rod
Tail end fixing seat 18 is equipped with screw rod tail end fixing bearing 34, and screw rod tail end is fixed in high-precision 19 end of grinding screw rod of X-axis
In fixing bearing 34；1 lower surface of casting pedestal fuselage is equipped with two pairs of pedestal under-chassis 27；1 front and back of casting pedestal fuselage
Surface is machined with a pair of of crane preformed hole 28；Fixing bearing connector 29 on the five axis vertical member 8, the B axle speed reducer 9
It is fixed on five axis vertical members 8 by bearing connection 29.
The characteristics of the present embodiment is that 1 right lateral surface of casting pedestal fuselage is equipped with cutting fluid fuel tank 2, casting pedestal fuselage 1
Upper surface right end is equipped with body drain bucket 3, and fixed a pair of four or five axis of 1 upper surface right end of casting pedestal fuselage increase block casting part 4, Yi Duisi
Five axis, which are increased, is fixed with C axis 5 on block casting part 4, C axis 5 is equipped with C axis quick chuck 6, and part 7 is increased equipped with BC axis in front end on C axis 5,
Rear end is equipped with five axis vertical members 8 on C axis 5, and five axis vertical members 8 are equipped with B axle speed reducer 9, install B axle servo on B axle speed reducer 9
Motor 10,1 upper surface of casting pedestal fuselage and is located at four or five axis and increases fixed a pair of of the Y-axis casting 11 in 4 left end of block casting part, casting bottom
1 upper surface of base body and it is located between a pair of of Y-axis casting 11 and is equipped with servo tool magazine 12,1 upper surface of casting pedestal fuselage and is located at
Fix tool magazine cylinder stressed plate 13 between a pair of of Y-axis casting 11, the fixed high-precision line rail 14 of Y-axis in each 11 upper surface of Y-axis casting, one
To Y-axis casting crossbeam 15 is fixed on the high-precision line rail 14 of Y-axis, 15 right lateral surface upper end of Y-axis casting crossbeam is equipped with the high-precision line rail of X-axis
16,15 rear end of Y-axis casting crossbeam is equipped with X-axis casting crossbeam 31, and 31 right lateral surface of X-axis casting crossbeam is equipped with multiple X-axis line rail pressures
Code 32, the fixed X-axis servo motor 17 in 15 right lateral surface lower end of Y-axis casting crossbeam and are located at X at 15 right lateral surface of Y-axis casting crossbeam
X-axis screw rod tail end fixing seat 18 is fixed in 17 front end of axis servo motor, installs the high-precision grinding screw rod 19 of X-axis on X-axis servo motor 17,
X-axis servo motor 17 is connected by the high-precision grinding screw rod 19 of X-axis with X-axis screw rod tail end fixing seat 18, and Y-axis casting crossbeam 15 is right
End is equipped with Z axis fuselage casting fixed block 20, and Z axis servo motor 21, the casting of Z axis fuselage are installed in 20 upper end of Z axis fuselage casting fixed block
20 right end of part fixed block is equipped with Z axis fuselage casting sliding shoe 22, is fixed with main shaft claming part on Z axis fuselage casting sliding shoe 22
23, high-speed electric main shaft 24 is installed in 23 upper end of main shaft claming part, and high-speed high-power electro spindle 25 is installed in 23 lower end of main shaft claming part, high
High speed cutter head 33 is installed, 1 upper surface of casting pedestal fuselage and being located between a pair of of Y-axis casting 11 is set on the high-power electro spindle 25 of speed
There is Y-axis servo motor 26.Each axle casting part is integrally cast in the present apparatus, and structure is optimized, and left and right is intermediate in stress position
Set and all increase reinforcing rib, axial bearing capacity with rigidity be greatly improved, transmission aspect changed greatly screw rod it is straight pass through with
And high smooth grinding grade screw rod is used, improvement has also been made in the structure of fixed position, and line rail has flange and the fixation of pressure code and screw rod
Fixed form is formed by heavy cutting grinding machine structure design, and lathe work in-process endurance is more stable, and the equipment exists
The driving power of motor is increased in terms of servo drive, processing is faster than same money type speed, it is higher to be accurately positioned, while lubricant
Road system is cast, surrounding accumulator tank and funnel phenomena such as there will be no leak oil leaks, is reduced material loss, is improved production
The qualification rate of product.
In the present embodiment, the utility model is a kind of five axis carving and milling machines first, includes casting pedestal fuselage 1,
The right lateral surface of casting pedestal fuselage 1 is equipped with cutting fluid mailbox 2, and surface right end is equipped with body drain bucket 3 on it, then in casting
1 upper surface right end of pedestal fuselage is fixed with a pair of four or five axis and increases block casting part 4, increases in four or five axis of a pair fixed on block casting part 4
Have C axis 5, and on C axis 5 be equipped with C axis quick chuck 6, while on C axis 5 front end be equipped with BC axis increase part 7, the C axis 5
Upper rear end is equipped with five axis vertical members 8, B axle speed reducer 9 is arranged on five axis vertical members 8 by bearing connection 29, the B axle
B axle servo motor 10 is installed on speed reducer 9, increases 4 left side of block casting part in 1 upper surface of casting pedestal fuselage and positioned at four or five axis later
End is fixed with a pair of of Y-axis casting 11, and is fixed with tool magazine gas between a pair of of Y-axis casting 11 and on casting pedestal fuselage 1
Cylinder stressed plate 13 is fixed with the high-precision line rail 14 of Y-axis in each 11 upper surface of Y-axis casting later, the high-precision line rail 14 of a pair of of Y-axis it
Between be fixed with Y-axis casting crossbeam 15, the high-precision line rail 16 of X-axis is set in 15 right lateral surface upper end of Y-axis casting crossbeam, and on the right side of it
Surface lower end is fixed with X-axis servo motor 17,15 right lateral surface of Y-axis casting crossbeam and is located at 17 front end of X-axis servo motor
Fixed X-axis screw rod tail end fixing seat 18, is fixed X-axis servo motor 17 in X-axis screw rod tail end using the high-precision grinding screw rod 19 of X-axis
Seat 18 is connected, and wherein the screw rod tail end being arranged in X-axis screw rod tail end fixing seat 18 is fixed in high-precision 19 end of grinding screw rod of X-axis
In fixing bearing 34, it then is equipped with Z axis fuselage casting fixed block 20 in 15 right end of Y-axis casting crossbeam, Z axis fuselage casting is fixed
20 upper end of block is equipped with Z axis servo motor 21, and designs Z axis fuselage casting sliding shoe 22 in its right end, through main shaft claming part 23
It is fixed on Z axis fuselage casting sliding shoe 22, high-speed electric main shaft 24 is installed in 23 upper end of main shaft claming part, lower end installation is high
The high-power electro spindle 25 of speed, installs high speed cutter head 33,1 upper surface of casting pedestal fuselage on high-speed high-power electro spindle 25
And be located between a pair of of Y-axis casting 11 and be equipped with Y-axis servo motor 26, in the present apparatus, the left side of Z axis fuselage casting fixed block 20
Surface devises high-precision sliding block 30, and is equipped with X-axis casting crossbeam 31, the X-axis casting crossbeam 31 in 15 rear end of Y-axis casting crossbeam
Right lateral surface is equipped with multiple X-axis line rail pressure codes 32, and each high-precision sliding block 30 is installed on corresponding X-axis line rail pressure code 32,
1 lower surface of casting pedestal fuselage is equipped with two pairs of pedestal under-chassis 27, is machined with a pair in 1 front and rear surfaces of casting pedestal fuselage
Crane preformed hole 28.
Above-mentioned technical proposal only embodies the optimal technical scheme of technical solutions of the utility model, the technology of the art
Personnel embody the principles of the present invention to some variations that some of them part may be made, and belong to the utility model
Protection scope within.
Claims (6)
1. a kind of five axis carving and milling machines, including casting pedestal fuselage (1), which is characterized in that table on the right side of the casting pedestal fuselage (1)
Face is equipped with cutting fluid fuel tank (2), and casting pedestal fuselage (1) the upper surface right end is equipped with body drain bucket (3), the casting pedestal machine
Fixed a pair of four or five axis of body (1) upper surface right end are increased block casting part (4), and a pair of four or five axis is increased fixed on block casting part (4)
Have C axis (5), the C axis (5) is equipped with C axis quick chuck (6), and part (7), institute are increased equipped with BC axis in front end on the C axis (5)
It states rear end on C axis (5) and is equipped with five axis vertical members (8), the five axis vertical member (8) is equipped with B axle speed reducer (9), and the B axle subtracts
On fast machine (9) install B axle servo motor (10), the casting pedestal fuselage (1) upper surface and be located at four or five axis increase block casting part
(4) fixed a pair of of the Y-axis casting (11) in left end, the casting pedestal fuselage (1) upper surface and is located at a pair of Y-axis casting (11)
Between be equipped with servo tool magazine (12), the casting pedestal fuselage (1) upper surface and be located at fixing cutter between a pair of of Y-axis casting (11)
Library cylinder stressed plate (13), each fixed high-precision line rail (14) of Y-axis in Y-axis casting (11) upper surface, a pair of Y-axis are high-precision
Y-axis casting crossbeam (15) is fixed on line rail (14), Y-axis casting crossbeam (15) the right lateral surface upper end is equipped with the high-precision line rail of X-axis
(16), the Y-axis casting crossbeam (15) rear end is equipped with X-axis casting crossbeam (31), and X-axis casting crossbeam (31) right lateral surface is set
There are multiple X-axis line rail pressure codes (32), Y-axis casting crossbeam (15) the right lateral surface lower end is fixed X-axis servo motor (17), described
Y-axis casting crossbeam (15) right lateral surface and, institute fixed X-axis screw rod tail end fixing seat (18) positioned at X-axis servo motor (17) front end
The installation high-precision grinding screw rod of X-axis (19) on X-axis servo motor (17) is stated, the X-axis servo motor (17) passes through the high smooth grinding of X-axis
Screw rod (19) is connected with X-axis screw rod tail end fixing seat (18), and Y-axis casting crossbeam (15) right end is equipped with Z axis fuselage casting
Z axis servo motor (21) are installed in fixed block (20), the Z axis fuselage casting fixed block (20) upper end, and the Z axis fuselage casting is solid
Determine block (20) right end and be equipped with Z axis fuselage casting sliding shoe (22), main shaft folder is fixed on the Z axis fuselage casting sliding shoe (22)
High-speed electric main shaft (24) are installed in tight part (23), main shaft claming part (23) upper end, main shaft claming part (23) the lower end installation
High-speed high-power electro spindle (25) installs high speed cutter head (33) on the high-speed high-power electro spindle (25), the casting pedestal
Fuselage (1) upper surface and it is located between a pair of of Y-axis casting (11) and is equipped with Y-axis servo motor (26).
2. a kind of five axis carving and milling machine according to claim 1, which is characterized in that the Z axis fuselage casting fixed block (20)
Left-hand face is equipped with multiple high-precision sliding blocks (30), and each high-precision sliding block (30) is installed on corresponding X-axis line rail pressure code (32).
3. a kind of five axis carving and milling machine according to claim 1, which is characterized in that the X-axis screw rod tail end fixing seat (18)
It is equipped with screw rod tail end fixing bearing (34), screw rod tail end fixing bearing is fixed in the high-precision grinding screw rod of X-axis (19) end
(34) on.
4. a kind of five axis carving and milling machine according to claim 1, which is characterized in that casting pedestal fuselage (1) lower surface
Equipped with two pairs of pedestal under-chassis (27).
5. a kind of five axis carving and milling machine according to claim 1, which is characterized in that table before and after the casting pedestal fuselage (1)
Face is machined with a pair of of crane preformed hole (28).
6. a kind of five axis carving and milling machine according to claim 1, which is characterized in that fixing axle on the five axis vertical member (8)
It holds connector (29), the B axle speed reducer (9) is fixed on five axis vertical members (8) by bearing connection (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820559760.XU CN208303981U (en) | 2018-04-19 | 2018-04-19 | A kind of five axis carving and milling machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820559760.XU CN208303981U (en) | 2018-04-19 | 2018-04-19 | A kind of five axis carving and milling machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208303981U true CN208303981U (en) | 2019-01-01 |
Family
ID=64720105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820559760.XU Expired - Fee Related CN208303981U (en) | 2018-04-19 | 2018-04-19 | A kind of five axis carving and milling machines |
Country Status (1)
| Country | Link |
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| CN (1) | CN208303981U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111015252A (en) * | 2019-12-30 | 2020-04-17 | 武汉理工大学 | Main shaft sliding table of movable beam type gantry numerical control engraving and milling machine |
-
2018
- 2018-04-19 CN CN201820559760.XU patent/CN208303981U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111015252A (en) * | 2019-12-30 | 2020-04-17 | 武汉理工大学 | Main shaft sliding table of movable beam type gantry numerical control engraving and milling machine |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190101 Termination date: 20190419 |