CN110014340A - A kind of belt steel surface sander - Google Patents
A kind of belt steel surface sander Download PDFInfo
- Publication number
- CN110014340A CN110014340A CN201910291860.8A CN201910291860A CN110014340A CN 110014340 A CN110014340 A CN 110014340A CN 201910291860 A CN201910291860 A CN 201910291860A CN 110014340 A CN110014340 A CN 110014340A
- Authority
- CN
- China
- Prior art keywords
- polishing
- belt steel
- grinding head
- steel surface
- sander
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/10—Single-purpose machines or devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The present invention discloses a kind of belt steel surface sander, including polisher bracket, servo motor is fixed on the polisher bracket, retarder is installed on the transmission shaft of the servo motor, it is provided with rotation axis on the retarder, swing arm is provided in the rotation axis, described swing arm one end is provided with cylinder, flexible grinding head is fixed on the piston telescopic rod of the cylinder, is provided with polishing oilstone below the flexibility grinding head；Structure of the invention design is reasonable; it is easy to use; the polishing of belt steel surface may be implemented using the sander principle; this sander is not only able to satisfy the polishing for rolling hard volume surface; it can also be achieved the polishing of coating belt steel surface; it can be not only used for the online polishing in the case of unit is not shut down, can also realize the offline polishing of strip.Using the full-automatic of strip polishing work, completely substitution manual polishing can be achieved after the sander, raises labour productivity, improve worker's working environment, improve the operational efficiency of unit, it is ensured that the not missing inspection of steel strip surface defect.
Description
Technical field
The present invention relates to technical field of metallurgical machinery, specially a kind of belt steel surface sander.
Background technique
Product higher for surface quality during cold rolled strip steel production, needs to check by polishing.For milling train
Outlet roll hard volume for, the defects of will appear roll marks, vibration line, Surface inclusion in the operation of rolling, these defects macroscopically table
It is now slight, directly with the naked eye it is difficult to be identified, needs to polish by using oilstone rear coil of strip surface is rolled, make outside defect
Dew provides condition to find the defect of plate surface for the subsequent practicable solution of formulation.Similarly for coating strip
(such as Automobile Plate, appliance plate), to check the tables such as the roll marks occurred in strip production and transmission process, plating defect, vibration line
Planar defect needs polish by belt steel surface, with the quality of detection.
Manual polishing is mostly used greatly to the polishing of cold-reduced sheet both at home and abroad at present, the mode of manual polishing is by operative employee's manpower
Oilstone is held, is continuously polished the distance of unit maximum roller perimeter in belt steel surface, belt steel surface after polishing is observed by polishing worker
Pattern, to detect the defect of plate surface.Using this polishing mode not only labour heavy workload, low efficiency, and there are people
For factor, occur the case where missing inspection often.This polishing mode, which has become, restricts the key factor that unit production capacity plays,
Limit the performance of unit production capacity.
This patent on the basis of sufficiently grasping manual polishing method and feature, using bionics principle, manually beat by simulation
Mill method and polishing pressure, realize the online or offline polishing of belt steel surface.Manual polishing can be substituted completely using the sander,
The surface defects such as Surface inclusion, roll marks, vibration line can be effectively shown by polishing, greatly improve polishing speed and polishing effect
Fruit.
Through online information retrieval, do not retrieved and this Shen in technology disclosed in patent document, non-patent literature and the other modes
It please same or similar technology.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of belt steel surface sanders, have and raise labour productivity, improve
The advantages that worker's working environment, solves the problems such as existing polishing heavy workload, the low efficiency of polishing.
(2) technical solution
To achieve the above object, the invention provides the following technical scheme: a kind of belt steel surface sander, including polisher bracket,
It is fixed with servo motor on the polisher bracket, retarder, the retarder are installed on the transmission shaft of the servo motor
On be provided with rotation axis, swing arm is provided in the rotation axis, described swing arm one end is provided with cylinder, and the piston of the cylinder is stretched
Flexible grinding head is fixed on contracting bar, is provided with polishing oilstone below the flexibility grinding head.
Preferably, the retarder is connected in the rotation axis by shaft coupling.
Preferably, the cylinder is fixedly connected with the swing arm by screw and nut.
Preferably, the flexible grinding head is a flexible structure, and each direction in space all has certain flexibility, but all directions
Rigidity it is different, so that it is guaranteed that oilstone is able to satisfy the requirement of belt steel surface unevenness, guarantee the uniformity of polishing.
Preferably, the flexible grinding head is connect with the polishing oilstone by magnetism, is pasted on the polishing oilstone
A layer thickness is 1~2 millimeter of mild steel, and fixed permanent magnet is by absorption mild steel on the flexibility grinding head, by polishing oil
Stone is connected with flexible grinding head.
Preferably, for the length L of the polishing oilstone between 100~150 millimeters, width W is high between 10~50 millimeters
H is spent between 10~50 millimeters.
Preferably, the swing arm is placed in rotation axis, and is fastened and fixed by screw and nut.
(3) beneficial effect
Compared with prior art, the present invention provides a kind of belt steel surface sander, have it is following the utility model has the advantages that
1, this kind of belt steel surface sander, it is reasonable in design, the polishing of belt steel surface may be implemented using the sander principle,
This sander is not only able to satisfy the polishing for rolling hard volume surface, can also be achieved the polishing of coating belt steel surface, can be used to unit
Online polishing, can also realize the offline polishing of strip.Using the full-automatic of strip polishing work can be achieved after the sander, completely
Manual polishing is substituted, is raised labour productivity, improves worker's working environment, improves the speed of service of unit, it is ensured that belt steel surface
The not missing inspection of defect.
2, this kind of belt steel surface sander, cold rolled strip steel production need to carry out sanding operation there are many region in the process, such as
Milling train outlet, automobile and appliance plate coating production line, strip Precise asymptotics, this sanding operation has manual operation for a long time
It completes, there are labour heavy workloads, and quality of polishing is not easy to control, the problem of polishing time length used.The present invention will can manually be beaten
Mill mode is promoted to machine automatically grinding, while raising labour productivity, promotes polishing quality, the labor of worker is greatly reduced
Fatigue resistance has boundless application prospect.
Detailed description of the invention
Fig. 1 is the online workpiece polishing mechanism of belt steel surface of the present invention into figure；
Fig. 2 is belt steel surface of the present invention polishing trace schematic diagram；
Fig. 3 is the structural texture schematic diagram of present invention polishing oilstone；
Fig. 4 is the offline workpiece polishing mechanism of the present invention into figure.
In figure: 1, servo motor；2, retarder；3, rotation axis；4, swing arm；5, cylinder；6, flexible grinding head；7, polishing oil
Stone；8, workbench；9, polisher bracket；10, idler wheel；11, guide rail；12, strip；13, mild steel.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1: please referring to Fig. 1-4, and the present invention provides a kind of technical solution: a kind of belt steel surface sander, including beats
Grinding machine bracket 9 is fixed with servo motor 1 on the polisher bracket 9, is equipped with deceleration on the transmission shaft of the servo motor 1
Device 2 is provided with rotation axis 3 on the retarder 2, swing arm 4 is provided in the rotation axis 3, described 4 one end of swing arm is provided with gas
Cylinder 5 fixes flexible grinding head 6 on the piston telescopic rod of the cylinder 5, is provided with polishing oil below the flexibility grinding head 6
Stone 7.
It is further improved ground, the retarder 2 is connected in the rotation axis 3 by shaft coupling.
It is further improved ground, the cylinder 5 is fixedly connected with the swing arm 4 by screw and nut.
It is further improved ground, the flexibility grinding head 6 is connect with the polishing oilstone 7 by magnetism, the polishing oilstone 7
A layer thickness is 1~2 millimeter of mild steel in upper stickup, on the flexibility grinding head 6 fixed permanent magnet by absorption mild steel,
Polishing oilstone 7 is connected with flexible grinding head 6.
It is further improved ground, the length L of the polishing oilstone 7 is between 100~150 millimeters, and width W is at 10~50 millimeters
Between, height h is between 10~50 millimeters.
It is further improved ground, the swing arm 4 is placed in rotation axis 3, and is fastened and fixed by screw and nut.
It is further improved ground, the flexibility grinding head 6 is a flexible structure, and polishing oilstone 7 is enabled to tolerate plate surface
Unevenness, it is ensured that grinding homogeneity.
1) the online sander invented is as shown in Figure 1, the swing arm of sander passes through retarder driving, work by servo motor
Crankmotion, flexible grinding head are depressed by cylinder, are fitted closely with strip, and polishing oilstone is done in the belt steel surface of operation
Reciprocal circular motion realizes the polishing to belt steel surface.
2) flexible grinding head is pushed by cylinder depresses, and grinding head is fitted closely with strip.Flexible grinding head relies on later
It is moved by the polishing armband that servo motor drives, makees crankmotion in mobile belt steel surface, realize the polishing to belt steel surface.
Obtained polishing trace of polishing is as shown in Figure 2.R is the pendulum radius of polishing arm in Fig. 2, and A is the swing angle of swing arm, and B is
The length of oilstone.
3) sander driving mechanism is by servo motor, retarder, rotation axis and swing arm composition, the crankmotion of swing arm
Angle A by Serve Motor Control, the length of swing arm is fixed, obtained radius of turn be R.
Embodiment 2: the Precise asymptotics of certain galvanized sheet, the working width of strip 12 are 700mm, and strip 12 is working normally feelings
The speed of service under condition is 150m/min, for detection 12 overlay coating roll marks of strip, slag inclusion, vibration line defect, is needed to entire volume
6 meters of regional scopes of take the lead and magnetic tape trailer of strip 12 carry out surface polishing, due to using manual polishing, need to stop in bruting process
Machine, with observation polishing rear surface quality.To substitute manual polishing, it is automatic to realize which uses this patent on observation platform
Polishing.
The online sander technical solution implemented on the unit are as follows:
1) when strip 12 needs to polish, units reduction of speed is opened when band rapidity degree drops to 10m/min from 150m/min
Dynamic sander starts to polish, and required for reaching after polishing length, compressor emergency shutdown, strip 12 rests on observation platform region, by
Operator checks the surface quality of strip 12.
2) the basic composition of the online sander is as shown in Figure 1.The length of sander swing arm 4 is 500mm, and arm of polishing is by watching
It takes motor 1 to drive by retarder 2, the angle A of swing is 70 °, and swing arm 4 is in the driving bottom dynamic frequency of servo motor 1
70HZ。
3) the polishing oilstone 7 that sander uses is Emery grains oilstone, and the granularity of polishing oilstone 7 is 800#, polishing oilstone 7
Length L is 150mm, and width W is 30mm, thickness h 20mm, and polishing 7 surface of oilstone adheres to one piece of 150*30mm with epoxy resin
With a thickness of the cold rolled mild steel of 1.5mm.Connection between polishing oilstone 7 and flexible grinding head 6, which uses, to be mounted on inside grinding head
Four blocks of permanent magnets.
4) flexible grinding head 6 is a compliant mechanism, and longitudinal flexibility is adjusted automatically by the spring inside cylinder 5 plus grinding head
Section, the adjusting of radial flexibility realized by the side rigid spring inside grinding head, the adjusting of circumferential flexibility by grinding head content change
The flexible damping gasket of rigid spring and connecting portion is adjusted.These flexible structures are integrated, it can be achieved that grinding head is according to strip 12
The change in shape on surface, realization are fitted closely with strip 12, guarantee grinding effect.
5) grinding head in a free state, makes the distance between the new oilstone and strip 12 to be by the height of adjusting bracket
15mm, the stroke of cylinder 5 are 35mm, and cylinder 5 uses compressed air-driven, and the compressed air pressure acted on cylinder 5 is
1kg/cm²。
The online polishing of strip can be realized using the sander, sander uses manual hand manipulation, and it is safe and reliable to operation,
The time that the region long for 6 meters has manual polishing to need 3 minutes, after being polished using sander, the polishing time is compressible to 1 point
Within clock, substantially mitigates the labor intensity of worker, improve the production capacity of unit.
Embodiment 3: certain Automobile Plate hot galvanizing produces unit, and detection coating surface roll marks, shakes the defects of line at slag inclusion, needs
It is sampled to polishing table and carries out offline manual polishing inspection, the length of taken strip is 5 meters, and unit strip width range is 700
~1200mm, the polishing and detection are all made of manual polishing.To substitute manual polishing, which uses this specially on observation platform
Sharp technology realizes automatically grinding.
The online sander technical solution implemented on the unit are as follows:
1) the basic composition of the online sander is as shown in Figure 4.The length of sander swing arm 4 is 700mm, and polishing arm is by servo electricity
Machine 1 is driven by retarder 2, and the angle of swing is calculated according to the width of strip 12 by PLC automatically, A=2*arcsinB/1000,
When 12 width of strip is 700mm, the angle of swing is 60 °, and when 12 width of strip is 1200mm, the angle of swing is
100 °, swing arm 4 is 30HZ in the driving bottom dynamic frequency of servo motor 1.
2) under the driving of 8 translator of workbench, movement speed 10m/min.Upper 2~the 3mm of pad on polishing machine worktable 8
Thick nitrile rubber plate, strip 12 are placed on rubber slab.
3) the polishing oilstone 7 that sander uses refines oilstone for boron carbide, and the granularity of polishing oilstone 7 is 800#, polishing oil
The length L of stone 7 is 150mm, and width W is 50mm, thickness h 30mm, and polishing 7 surface of oilstone adheres to one piece of 150* with epoxy resin
50mm with a thickness of 1.5mm cold rolled mild steel.Connection between polishing oilstone 7 and flexible grinding head 6, which uses, to be mounted in grinding head
Four blocks of permanent magnets in portion.
4) flexible grinding head 6 is a compliant mechanism, and longitudinal flexibility is adjusted automatically by the spring inside cylinder 5 plus grinding head
Section, the adjusting of radial flexibility realized by the side rigid spring inside grinding head, the adjusting of circumferential flexibility by grinding head content change
The flexible damping gasket of rigid spring and connecting portion is adjusted.These flexible structures are integrated, it can be achieved that grinding head is according to strip 12
The change in shape on surface, realization are fitted closely with strip 12, guarantee grinding effect.
5) grinding head in a free state, makes the distance between the new oilstone and strip 12 to be by the height of adjusting bracket
15mm, the stroke of cylinder 5 are 35mm, and cylinder 5 uses compressed air-driven, and the compressed air pressure acted on cylinder 5 is
1kg/cm²。
The offline polishing that strip can be realized using the sander had manual polishing 5 meters of long strips of this block to need 3-5 originally
The time of minute, after being polished using sander, the polishing time was compressible within 1 minute, substantially mitigated the labor intensity of worker.
In conclusion structure of the invention design is rationally, the polishing on 12 surface of strip may be implemented using the sander principle,
This sander is not only able to satisfy the polishing for rolling hard volume surface, can also be achieved the polishing on 12 surface of coating strip, can be used to machine
The online polishing of group, can also realize the offline polishing of strip 12.Using can be achieved after the sander strip 12 polish work it is complete from
It is dynamic, manual polishing is substituted completely, is raised labour productivity, and is improved worker's working environment, is improved the speed of service of unit, it is ensured that band
The not missing inspection of 12 surface defect of steel；Many of 12 production process of cold-strip steel region needs to carry out sanding operation, as milling train goes out
Mouth, automobile and appliance plate coating production line, 12 Precise asymptotics of strip, this sanding operation has manual operation complete for a long time
At there are labour heavy workloads, and quality of polishing is not easy to control, the problem of polishing time length used.The present invention can be by manual polishing
Mode is promoted to machine automatically grinding, while raising labour productivity, promotes polishing quality, the labour of worker is greatly reduced
Intensity has boundless application prospect.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (7)
1. a kind of belt steel surface sander, including polisher bracket (9), it is characterised in that: fixed on the polisher bracket (9)
Have servo motor (1), be equipped with retarder (2) on the transmission shaft of the servo motor (1), is provided on the retarder (2)
Rotation axis (3) is provided with swing arm (4) on the rotation axis (3), and described swing arm (4) one end is provided with cylinder (5), the cylinder
(5) it is fixed on piston telescopic rod flexible grinding head (6), is provided with polishing oilstone (7) below the flexibility grinding head (6).
2. a kind of belt steel surface sander according to claim 1, it is characterised in that: the retarder (2) is in described turn
Moving axis (3) is connected by shaft coupling.
3. a kind of belt steel surface sander according to claim 1, it is characterised in that: the cylinder (5) and the swing arm
(4) it is fixedly connected by screw and nut.
4. a kind of belt steel surface sander according to claim 1, it is characterised in that: the flexibility grinding head (6) and institute
It states polishing oilstone (7) to connect by magnetic, the mild steel that upper a layer thickness is 1~2 millimeter, institute is pasted on polishing oilstone (7)
Permanent magnet fixed on flexible grinding head (6) is stated by absorption mild steel, polishing oilstone (7) is connected with flexible grinding head (6).
5. a kind of belt steel surface sander according to claim 1, it is characterised in that: the length L of polishing oilstone (7)
Between 100~150 millimeters, width W is between 10~50 millimeters, and height h is between 10~50 millimeters.
6. a kind of belt steel surface sander according to claim 1, it is characterised in that: the swing arm (4) is placed on rotation axis
(3) it on, and is fastened and fixed by screw and nut.
7. a kind of belt steel surface sander according to claim 1, it is characterised in that: the flexibility grinding head (6) is one
Flexible structure, so that polishing oilstone (7) can tolerate the unevenness of plate surface, it is ensured that grinding homogeneity.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211294448.XA CN115464480A (en) | 2019-04-12 | 2019-04-12 | Strip steel surface grinding machine |
| CN201910291860.8A CN110014340A (en) | 2019-04-12 | 2019-04-12 | A kind of belt steel surface sander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910291860.8A CN110014340A (en) | 2019-04-12 | 2019-04-12 | A kind of belt steel surface sander |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211294448.XA Division CN115464480A (en) | 2019-04-12 | 2019-04-12 | Strip steel surface grinding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110014340A true CN110014340A (en) | 2019-07-16 |
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ID=67191173
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910291860.8A Pending CN110014340A (en) | 2019-04-12 | 2019-04-12 | A kind of belt steel surface sander |
| CN202211294448.XA Pending CN115464480A (en) | 2019-04-12 | 2019-04-12 | Strip steel surface grinding machine |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211294448.XA Pending CN115464480A (en) | 2019-04-12 | 2019-04-12 | Strip steel surface grinding machine |
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| CN (2) | CN110014340A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111413346A (en) * | 2020-04-15 | 2020-07-14 | 山东钢铁集团日照有限公司 | Manual polishing inspection method for steel belt for automobile panel |
| CN112025164A (en) * | 2020-08-25 | 2020-12-04 | 杭州恒途钢结构有限公司 | Alignment combination machine of H shaped steel production line |
| CN112440205A (en) * | 2019-08-28 | 2021-03-05 | 上海宝信软件股份有限公司 | Flexible polishing head device capable of automatically leveling |
| CN112935833A (en) * | 2021-02-04 | 2021-06-11 | 湖州云丰铝合金有限公司 | Convenient metal surface drilling mechanism that polishes |
| CN113523907A (en) * | 2020-04-14 | 2021-10-22 | 上海宝信软件股份有限公司 | Automatic polishing device and polishing method for cold-rolled strip steel |
| CN115194577A (en) * | 2021-04-13 | 2022-10-18 | 宝武装备智能科技有限公司 | Floating polishing head device for strip steel polishing robot |
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| CN112440205A (en) * | 2019-08-28 | 2021-03-05 | 上海宝信软件股份有限公司 | Flexible polishing head device capable of automatically leveling |
| CN113523907A (en) * | 2020-04-14 | 2021-10-22 | 上海宝信软件股份有限公司 | Automatic polishing device and polishing method for cold-rolled strip steel |
| CN111413346A (en) * | 2020-04-15 | 2020-07-14 | 山东钢铁集团日照有限公司 | Manual polishing inspection method for steel belt for automobile panel |
| CN112025164A (en) * | 2020-08-25 | 2020-12-04 | 杭州恒途钢结构有限公司 | Alignment combination machine of H shaped steel production line |
| CN112025164B (en) * | 2020-08-25 | 2022-06-21 | 杭州恒途钢结构有限公司 | Alignment combination machine of H shaped steel production line |
| CN112935833A (en) * | 2021-02-04 | 2021-06-11 | 湖州云丰铝合金有限公司 | Convenient metal surface drilling mechanism that polishes |
| CN115194577A (en) * | 2021-04-13 | 2022-10-18 | 宝武装备智能科技有限公司 | Floating polishing head device for strip steel polishing robot |
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