CN110936239A - Pipe fitting grinding device for construction - Google Patents
Pipe fitting grinding device for construction Download PDFInfo
- Publication number
- CN110936239A CN110936239A CN201911355882.2A CN201911355882A CN110936239A CN 110936239 A CN110936239 A CN 110936239A CN 201911355882 A CN201911355882 A CN 201911355882A CN 110936239 A CN110936239 A CN 110936239A
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- CN
- China
- Prior art keywords
- polishing
- assembly
- chute
- hole
- building construction
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Classifications
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- 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
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/18—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work
- B24B5/22—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work for grinding cylindrical surfaces, e.g. on bolts
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- 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
- B24B27/00—Other grinding machines or devices
- B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
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- 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
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- 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
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- 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
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/35—Accessories
Abstract
The invention discloses a pipe fitting polishing device for building construction, and relates to the technical field of building construction. The invention includes a pair of mounting plates; a plurality of polishing components are movably connected between the pair of mounting plates; any one of the sanding assemblies is connected with a driving assembly; a tensioning assembly is movably connected between the pair of mounting plates; a through hole is formed in one surface of the mounting plate; a pipe fitting to be polished extends into the through hole; three sliding grooves are arranged on the periphery of the through hole in a delta shape; telescopic components are arranged in the three sliding grooves; the telescopic component is matched with the polishing component; the grinding assembly comprises a rotating shaft; the peripheral side surface of the rotating shaft is fixedly provided with a polishing head. According to the invention, the pipe fittings with different diameters are clamped and polished by adjusting the positions between the polishing assemblies, the chain is tensioned by adjusting the position of the tensioning assembly to improve the polishing effect, and the polishing effect is greatly improved and the operation is convenient by arranging a plurality of polishing assemblies.
Description
Technical Field
The invention belongs to the technical field of building construction, and particularly relates to a pipe fitting polishing device for building construction.
Background
In the building construction process, various metal pipe fittings are often used, and the metal pipe fittings are often required to be polished smoothly when being reused due to improper storage, or easy rustiness after being exposed for a long time or contamination of concrete. The existing polishing device can only polish one side of the pipe fitting, and then the polishing head rotates around the periphery of the pipe fitting to polish the pipe fitting, so that the efficiency is very slow. When the grinding device is used for grinding metal pipe fittings with different diameters, different parts need to be replaced, so that the grinding head moves around a larger or smaller circle, and the grinding device is very inconvenient.
Aiming at the problems, the pipe fittings with different diameters are clamped and polished by adjusting the positions among the polishing assemblies under the action of the mounting plate, the polishing assemblies, the driving assembly and the tensioning assembly, the chain is tensioned by adjusting the positions of the tensioning assemblies to improve the polishing effect, and the polishing effect is greatly improved and the operation is convenient by arranging the plurality of polishing assemblies.
Disclosure of Invention
The invention aims to provide a pipe fitting polishing device for building construction, which solves the problems that the existing polishing device is low in polishing efficiency and difficult to adapt to pipe fittings with different diameters through the effects of an installation plate, a polishing assembly, a driving assembly and a tensioning assembly.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a pipe fitting polishing device for building construction, which comprises a pair of mounting plates; a plurality of polishing components are movably connected between the pair of mounting plates; any one of the sanding assemblies is connected with a driving assembly; a tensioning assembly is movably connected between the pair of mounting plates; a through hole is formed in one surface of the mounting plate; and a pipe fitting to be polished extends into the through hole.
Further, the number of the grinding assemblies is three.
Furthermore, three sliding grooves are arranged on the periphery of the through hole in a delta shape; the two sliding chutes at the lower end of the through hole are horizontally and symmetrically arranged, and one sliding chute at the upper end of the through hole is vertically arranged; telescopic components are arranged in the three sliding grooves; the telescopic assembly is matched with the grinding assembly.
Furthermore, a limiting channel is formed on the inner wall of the first sliding chute; the adjacent inner wall of the sliding chute is provided with a threaded hole; the telescopic assembly comprises a sliding block; one end of the sliding block is fixedly connected with a spring A; the other end of the sliding block is matched with a bolt; two sides of the sliding block are connected with the limiting channel in a sliding manner; the bolt is in threaded connection with the threaded hole.
Furthermore, the bottom end of the mounting plate is rotatably connected with a plurality of gears through a connecting plate; a first L-shaped rack is fixedly arranged on the peripheral side surface of a grinding assembly positioned at the lower end of the through hole; the teeth of the first L-shaped rack are arranged at the lower end of the first L-shaped rack; a second L-shaped rack is fixedly arranged on the peripheral side surface of the other polishing assembly positioned at the lower end of the through hole; the teeth of the second L-shaped rack are arranged on the upper surface of the second L-shaped rack; and a gear is meshed between the first L-shaped rack and the second L-shaped rack.
Further, the grinding assembly comprises a rotating shaft; a polishing head is fixedly arranged on the circumferential side surface of the rotating shaft; two ends of the polishing head are symmetrically and rotatably connected with fixed blocks; a clamping groove is formed in one opposite side face of the fixing block, and the pipe fittings with different diameters can be conveniently polished by sliding the polishing assembly;
chain wheels are symmetrically and fixedly arranged at two ends of the polishing head; the three chain wheels are connected through a chain; the drive assembly comprises a motor; the output shaft of the motor is fixedly connected with the rotating shaft of any one polishing assembly through the coupler, the polishing assembly connected with the motor is driven to rotate through the rotation of the motor, so that all polishing assemblies are driven to polish the pipe fittings through the chain, one end of the fixed pipe fitting is connected with a rotating device, after polishing of one position of the pipe fitting is completed, the pipe fitting is rotated to polish the other position, and each position can be polished for three positions, so that the pipe fitting can be completely polished by rotating 120 degrees, and the polishing efficiency is greatly improved; the clamping groove is connected with the sliding groove in a sliding mode.
Furthermore, fillets are formed in the two ends of the polishing head, so that when the pipe fitting is inserted into the through hole, the pipe fitting can be easily inserted, and the three polishing assemblies are arranged on the periphery under the action of the spring A.
Furthermore, the other surface of the mounting plate is provided with a chute; the chute is positioned on the perpendicular bisector of the horizontally arranged chute and the vertically arranged chute; the chute is provided with an adjusting assembly, when pipe fittings with different diameters are ground, the distance between the three grinding assemblies is increased or reduced, the chain is adjusted to a proper tightness degree by adjusting the position of the tensioning assembly, and the chain is tensioned by the tensioning wheel; one end of the adjusting component is matched with the tensioning component.
Further, the tensioning assembly comprises a rotating rod; tensioning wheels are fixedly arranged at both ends of the rotating rod; a limiting block is rotatably connected between the pair of tensioning wheels; the limiting block is of an I-shaped structure; the limiting block is connected with the chute in a sliding mode.
Further, the adjustment assembly includes a fixed plate; one end of the fixing plate is fixedly connected with a spring B; the other end of the fixing plate is matched with a screw rod, and a handle is arranged at the end part of the screw rod; the fixed plate is connected to the inner wall of the chute in a sliding manner; the screw rod is connected to the inner part of the chute in a threaded manner. When the pipe fitting diameter that needs to polish is less, make the fixed plate lapse through rotating the handle, drive tensioning assembly downstream to make the take-up pulley with the chain tensioning. On the contrary, when the diameter of the pipe fitting to be polished is large, the screw rod is adjusted towards the inclined upper side.
The invention has the following beneficial effects:
1. according to the pipe fitting extrusion polishing device, the gear is meshed between the first L-shaped rack and the second L-shaped rack, and when the pipe fitting extrusion polishing component is inserted, the two polishing components positioned at the lower end of the through hole synchronously move in the opposite direction or move away from each other; therefore, the situation that the two grinding assemblies at the lower ends of the through holes move freely and cannot move synchronously is avoided, and the tensioning assembly cannot tension the chain well. By the design, the pipe fittings inserted into different diameters can be well ground when ground.
2. The pipe fitting polishing machine is connected with the polishing assemblies through the motor, the motor drives the chain to drive all the polishing assemblies to polish the pipe fittings, when one position of the pipe fitting is polished, the pipe fitting is rotated to polish the other position, and each position can be polished for three positions, so that the pipe fitting can be completely polished by rotating 120 degrees, and the polishing efficiency is greatly improved.
3. According to the invention, the adjusting assemblies are arranged through the inclined grooves, when the pipe fittings with different diameters are ground, the distances among the three grinding assemblies are increased or reduced, the chain is adjusted to be proper in tightness degree by adjusting the positions of the tensioning assemblies, and the chain is tensioned by the tensioning wheels, so that the effects of convenience in operation, suitability for the pipe fittings with different diameters, quickness in grinding and convenience in adjustment are achieved.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of a pipe polishing device for building construction according to the present invention;
FIG. 2 is a schematic view of the mounting plate;
FIG. 3 is a schematic diagram of a sanding assembly;
FIG. 4 is a schematic structural view of the tension assembly;
in the drawings, the components represented by the respective reference numerals are listed below:
1-mounting plate, 2-polishing assembly, 3-driving assembly, 4-tensioning assembly, 5-chute, 6-adjusting assembly, 101-through hole, 102-chute, 103-telescopic assembly, 104-gear, 105-first L-shaped rack, 106-second L-shaped rack, 201-polishing head, 202-fixing block, 203-clamping groove, 204-sprocket, 205-chain, 401-tensioning wheel, 402-limiting block, 601-fixing plate, 602-spring B, 603-lead screw, 1031-slider, 1032-spring A, 1033-bolt and 2011-fillet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention relates to a pipe polishing device for building construction, which comprises a pair of mounting plates 1; a plurality of polishing components 2 are movably connected between the pair of mounting plates 1; any one of the sanding assemblies 2 is connected with a driving assembly 3;
as shown in fig. 1, a tensioning assembly 4 is movably connected between a pair of mounting plates 1; a through hole 101 is formed in one surface of the mounting plate 1, and when the diameter of the pipe fitting changes, the polishing head 201 is ensured to be tightly attached to the peripheral side surface of the pipe fitting all the time; the through hole 101 is inserted with a pipe to be polished.
Preferably, as shown in fig. 1, the grinding assemblies 2 are three in number.
Preferably, as shown in fig. 2, three sliding grooves 102 are opened on the periphery of the through hole 101 in a delta shape; the two sliding chutes 102 positioned at the lower end of the through hole 101 are horizontally and symmetrically arranged, and one sliding chute 102 positioned at the upper end of the through hole 101 is vertically arranged; telescopic assemblies 103 are arranged in the three sliding grooves 102; the telescoping assembly 103 cooperates with the sanding assembly 2.
Preferably, as shown in fig. 2, a limit channel is formed on one opposite inner wall of the chute 102; the adjacent inner wall of the sliding chute 102 is provided with a threaded hole; the retraction assembly 103 includes a slider 1031; one end of the slider 1031 is fixedly connected with a spring A1032; the other end of the slider 1031 is matched with a bolt 1033; two sides of the sliding block 1031 are connected with the limiting channel in a sliding manner; bolt 1033 is threadedly coupled to the threaded bore.
Preferably, as shown in fig. 2, the bottom end of the mounting plate 1 is rotatably connected with a plurality of gears 104 through a connecting plate; a first L-shaped rack 105 is fixedly arranged on the peripheral side surface of a grinding assembly 2 positioned at the lower end of the through hole 101; the teeth of the first L-shaped rack 105 are arranged at the lower end of the first L-shaped rack 105; a second L-shaped rack 106 is fixedly arranged on the peripheral side surface of the other grinding assembly 2 positioned at the lower end of the through hole 101; the teeth of the second L-shaped rack 106 are arranged on the upper surface of the second L-shaped rack 106; a gear 104 is engaged between the first L-shaped rack 105 and the second L-shaped rack 106, when the pipe fitting extrusion grinding assembly 2 is inserted, one grinding assembly 2 at the lower end of the through hole 101 moves, and meanwhile, the other grinding assembly 2 at the lower end of the through hole 101 is driven to synchronously move in the opposite direction or move away from each other; this prevents the two sharpening units 2 at the lower end of the through hole 101 from moving freely and not moving synchronously, which results in the tensioning unit 4 not being able to tension the chain 205 very well.
Preferably, as shown in fig. 3, the sanding assembly 2 comprises a rotatable shaft; the peripheral side surface of the rotating shaft is fixedly provided with a polishing head 201; two ends of the polishing head 201 are symmetrically and rotatably connected with fixing blocks 202; a clamping groove 203 is formed in one opposite side face of the fixing block 202, and the pipe fittings with different diameters can be conveniently polished by sliding the polishing assembly 2; two ends of the polishing head 201 are symmetrically and fixedly provided with chain wheels 204; the three chain wheels 204 are connected through a chain 205; the drive assembly 3 comprises a motor; the output shaft of the motor is fixedly connected with the rotating shaft of any one of the polishing assemblies 2 through the coupler, the polishing assemblies 2 connected with the motor are driven to rotate through the rotation of the motor, so that all the polishing assemblies 2 are driven to polish the pipe fittings through the chain 205, one end of each fixed pipe fitting is connected with a rotating device, after one position of each pipe fitting is polished, the pipe fittings are rotated to polish the other position, and each position can be polished for three positions, so that the pipe fittings can be completely polished by rotating 120 degrees, and the polishing efficiency is greatly improved; the card slot 203 is slidably connected with the sliding chute 102.
Preferably, as shown in fig. 3, both ends of the polishing head 201 are provided with round corners 2011, so that when a pipe is inserted into the through hole 101, the pipe can be easily inserted, and at this time, the three polishing assemblies 2 are moved to the periphery due to the action of the spring a 1032.
Preferably, as shown in fig. 1-2, the mounting plate 1 is provided with an inclined groove 5 on the other surface; the chute 5 is positioned on the midperpendicular of a horizontally arranged chute 102 and a vertically arranged chute 102; the chute 5 is provided with an adjusting assembly 6, when pipe fittings with different diameters are ground, the distance between the three grinding assemblies 2 is increased or reduced, the chain 205 is adjusted to a proper tightness degree by adjusting the position of the tensioning assembly 4, and the tensioning wheel 401 tensions the chain 205; the adjustment assembly 6 is fitted with the tension assembly 4 at one end.
Preferably, as shown in fig. 4, the tensioning assembly 4 comprises a swivelling lever; a tensioning wheel 401 is fixedly arranged at both ends of the rotating rod; a limiting block 402 is rotatably connected between the pair of tensioning wheels 401; the limiting block 402 is of an I-shaped structure; the stopper 402 is slidably connected to the chute 5.
Preferably, as shown in fig. 1-2, the adjustment assembly 6 includes a fixed plate 601; one end of the fixing plate 601 is fixedly connected with a spring B602; the other end of the fixing plate 601 is matched with a screw 603, and a handle is arranged at the end part of the screw 603; the fixed plate 601 is connected with the inner wall of the chute 5 in a sliding way; the screw 603 is screwed inside the chute 5. When the diameter of the pipe to be ground is small, the fixing plate 601 slides downwards by rotating the handle, so that the tensioning assembly 4 is driven to move downwards, and the tensioning wheel 401 is enabled to tension the chain 205. Conversely, when the diameter of the pipe fitting to be polished is larger, the screw rod 603 is adjusted obliquely upwards.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. A pipe polishing device for building construction comprises a pair of mounting plates (1); the method is characterized in that:
a plurality of polishing components (2) are movably connected between the pair of mounting plates (1); any one of the grinding assemblies (2) is connected with a driving assembly (3);
a tensioning assembly (4) is movably connected between the pair of mounting plates (1);
a through hole (101) is formed in one surface of the mounting plate (1); the pipe fitting that needs to polish stretches into in through hole (101).
2. A pipe sanding device for building construction according to claim 1 characterized in that the number of sanding assemblies (2) is three.
3. The pipe polishing device for building construction according to claim 1 or 2, wherein three sliding grooves (102) are opened on the periphery of the through hole (101) in a delta shape; the two sliding chutes (102) positioned at the lower end of the through hole (101) are horizontally and symmetrically arranged, and one sliding chute (102) positioned at the upper end of the through hole (101) is vertically arranged;
telescopic assemblies (103) are arranged in the three sliding grooves (102); the telescopic assembly (103) is matched with the grinding assembly (2).
4. The pipe polishing device for building construction as claimed in claim 3, wherein a limit channel is formed on one opposite inner wall of the chute (102); the adjacent inner wall of the sliding groove (102) is provided with a threaded hole;
the telescopic assembly (103) comprises a slider (1031); one end of the sliding block (1031) is fixedly connected with a spring A (1032); the other end of the sliding block (1031) is matched with a bolt (1033);
two sides of the sliding block (1031) are connected with the limiting channel in a sliding manner; the bolt (1033) is in threaded connection with the threaded hole.
5. The pipe polishing device for building construction as claimed in claim 1, 2 or 4, wherein the bottom end of the mounting plate (1) is rotatably connected with a plurality of gears (104) through a connecting plate;
a first L-shaped rack (105) is fixedly arranged on the peripheral side surface of a grinding assembly (2) positioned at the lower end of the through hole (101); a second L-shaped rack (106) is fixedly arranged on the peripheral side surface of the other grinding assembly (2) positioned at the lower end of the through hole (101);
a gear (104) is meshed between the first L-shaped rack (105) and the second L-shaped rack (106).
6. A pipe polishing device for building construction according to claim 5, characterized in that the polishing assembly (2) comprises a rotating shaft; a polishing head (201) is fixedly arranged on the circumferential side surface of the rotating shaft; two ends of the polishing head (201) are symmetrically and rotatably connected with fixing blocks (202); a clamping groove (203) is formed in one opposite side face of the fixing block (202);
chain wheels (204) are symmetrically and fixedly arranged at two ends of the polishing head (201); the three chain wheels (204) are connected through a chain (205);
the drive assembly (3) comprises a motor; the output shaft of the motor is fixedly connected with the rotating shaft of any one of the polishing assemblies (2) through a coupler;
the clamping groove (203) is connected with the sliding groove (102) in a sliding mode.
7. The pipe polishing device for building construction as claimed in claim 6, wherein both ends of the polishing head (201) are provided with round corners (2011).
8. The pipe polishing device for building construction as claimed in claim 3, wherein the other surface of the mounting plate (1) is provided with a chute (5); the chute (5) is positioned on the perpendicular bisector of a horizontally arranged chute (102) and a vertically arranged chute (102); the chute (5) is provided with an adjusting component (6); one end of the adjusting component (6) is matched with the tensioning component (4).
9. The pipe polishing device for building construction according to claim 8, wherein the tensioning assembly (4) comprises a rotating rod; tensioning wheels (401) are fixedly arranged at two ends of the rotating rod; a limiting block (402) is rotatably connected between the pair of tensioning wheels (401); the limiting block (402) is of an I-shaped structure;
the limiting block (402) is connected with the chute (5) in a sliding mode.
10. A pipe sanding device for building construction according to claim 8 or 9, characterized in that the adjustment assembly (6) comprises a fixed plate (601); one end of the fixed plate (601) is fixedly connected with a spring B (602); the other end of the fixing plate (601) is matched with a screw rod (603);
the fixing plate (601) is connected to the inner wall of the chute (5) in a sliding manner; the screw rod (603) is in threaded connection with the inside of the chute (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911355882.2A CN110936239B (en) | 2019-12-25 | 2019-12-25 | Pipe fitting grinding device for construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911355882.2A CN110936239B (en) | 2019-12-25 | 2019-12-25 | Pipe fitting grinding device for construction |
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| CN110936239A true CN110936239A (en) | 2020-03-31 |
| CN110936239B CN110936239B (en) | 2021-04-06 |
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| CN111531418A (en) * | 2020-05-09 | 2020-08-14 | 苏州荔记得机械工程科技有限公司 | Carbon fiber tube grinding device |
| CN111975594A (en) * | 2020-07-29 | 2020-11-24 | 江西文青园林古建工程有限公司 | Old timber preparation is with cellar for storing things mud clearing device is done to ancient building |
| CN113458942A (en) * | 2021-07-08 | 2021-10-01 | 徐风堂 | Portable welding rod tail grinding device |
| CN113458926A (en) * | 2021-09-03 | 2021-10-01 | 南通豪派金属制品有限公司 | High-adaptability polishing equipment for surface of annular casting |
| CN113787446A (en) * | 2021-09-13 | 2021-12-14 | 查明刚 | Pipe fitting polishing machine |
| CN115415868A (en) * | 2022-09-30 | 2022-12-02 | 太原理工大学 | Hand-operated small-caliber steel pipe inner wall grinding robot capable of adjusting pose |
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