CN219465652U - Polishing device for longitudinal weld joint of inner cavity of thin-wall long cylinder - Google Patents
Polishing device for longitudinal weld joint of inner cavity of thin-wall long cylinder Download PDFInfo
- Publication number
- CN219465652U CN219465652U CN202320339475.8U CN202320339475U CN219465652U CN 219465652 U CN219465652 U CN 219465652U CN 202320339475 U CN202320339475 U CN 202320339475U CN 219465652 U CN219465652 U CN 219465652U
- Authority
- CN
- China
- Prior art keywords
- polishing
- disc
- inner cavity
- thin
- block
- 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.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The utility model discloses a polishing device for longitudinal weld joints of an inner cavity of a thin-wall long cylinder, which comprises two chassis which are oppositely arranged and connected through a long shaft; the sliding component is arranged on the long shaft and comprises a disc, a first fixed block and a fixed seat which are arranged on one end face of the disc, and an electric push rod which is arranged on the other end face of the disc; the disc and the first fixed block are connected to the long shaft in a sliding way; the number of the first fixed blocks is equal to the number of the long shafts; the polishing assembly comprises a polishing head, an electric hand drill arranged on the polishing head, a polishing fixing piece connected with the electric hand drill and the polishing head, and a sliding adjusting piece connected with the polishing fixing piece; the sliding adjusting piece is arranged on the fixing seat. The rotation of the chassis and the disc can be controlled by adjusting the angle of the long shaft, so that the polishing assembly and the longitudinal welding line of the inner cavity of the thin-wall cylinder body can be polished in a contact manner at any angle; and the polishing assembly transversely reciprocates in the inner cavity of the thin-wall long cylinder body through the cooperation of the electric push rod, so that the positioning and polishing of the longitudinal welding seam of the inner cavity are realized, and the polishing process is stable and efficient.
Description
Technical Field
The utility model belongs to the technical field of cylinder inner cavity machining, and particularly relates to a polishing device for longitudinal weld joints of a thin-wall long cylinder inner cavity.
Background
The thin-wall long cylinder is generally made by rolling and welding an aluminum alloy sheet, longitudinal welding seams are formed in the inner cavity of the welded thin-wall long cylinder, and the service life of the thin-wall long cylinder can be reduced due to the fact that the longitudinal welding seams in the inner cavity of the thin-wall long cylinder are too high. In order to prolong the service life of the thin-wall long cylinder, the inner cavity longitudinal welding seam is required to be polished, the welding seam and the matrix are required to be in smooth transition, and the precision requirement is extremely high.
Because the length of the cylinder body is longer, the polishing difficulty for the longitudinal welding seam of the inner cavity of the thin-wall long cylinder body is extremely high. The traditional manual polishing is adopted, the file or the polishing machine is extended into the barrel to polish the weld seam, so that the labor intensity is high, and the production efficiency is low; for the slender barrel with the length exceeding 1m, the polishing device is only effective for the welding line close to the end part of the barrel, and cannot accurately position the middle part of the thin-wall long barrel for polishing, and the polishing angle, the force, the pushing direction and the like affect the quality of the welding line. In addition, the operation in a narrow space is easy to cause the damage of inner cavity welding seams, the polishing is easy to generate defects such as deformation, cracks, cuts and the like, the dimensional accuracy of the thin-wall cylinder body is influenced, and the product quality is difficult to ensure. Positioning milling is difficult to be carried out on the inner cavity longitudinal welding seam by adopting a boring machine or a milling machine, the efficient polishing effect cannot be exerted, and the polishing requirement of the inner cavity longitudinal welding seam of the thin-wall long cylinder body is difficult to be met.
Disclosure of Invention
In order to solve the problems, the utility model aims to provide a polishing device for longitudinal welding seams of an inner cavity of a thin-wall long cylinder.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
a polishing device for longitudinal welds of an inner cavity of a thin-wall long cylinder comprises two opposite chassis, wherein the two chassis are connected through a long shaft;
the sliding component is arranged on the long shaft and comprises a disc, a first fixed block and a fixed seat which are arranged on one end face of the disc, and an electric push rod which is arranged on the other end face of the disc; the disc and the first fixed block are connected to the long shaft in a sliding manner; the number of the first fixing blocks is equal to the number of the long shafts;
the polishing assembly comprises a polishing head, an electric hand drill arranged on the polishing head, a polishing fixing piece connected with the electric hand drill and the polishing head, and a sliding adjusting piece connected with the polishing fixing piece and driving the polishing head to move in the vertical direction; the sliding adjusting piece is arranged on the fixing seat.
Preferably, the polishing fixing piece comprises a clamp connected with the electric hand drill and the polishing head and a connecting block arranged on the side wall of the clamp; the connecting block is connected with the fixed seat through the sliding adjusting piece.
Preferably, the sliding adjusting piece comprises a sliding block connected with the connecting block, a handle arranged on the sliding block, a fixed ring arranged above the sliding block and connected with the handle through threads, and a clamping block connected with the sliding block and the fixed ring; the sliding block is connected with the clamping block in a sliding way; the clamping blocks are fixed on the fixing base.
Preferably, the grinding head is configured as a ball nose milling cutter.
Preferably, the number of the discs is two, and the discs comprise a first disc and a second disc which are oppositely arranged and connected through a connecting plate; the two opposite end surfaces of the first disc and the second disc are respectively provided with a first fixed block and a fixed seat.
Preferably, the electric push rod penetrates through one of the chassis to be connected with the first disc, and a second fixing block is arranged at the joint of the electric push rod and the first disc; the polishing assembly is connected with the second disc through the fixing seat.
Preferably, the second fixing block is welded on the first disc, and the electric push rod is fixed on the second fixing block through a bolt.
Preferably, the number of the long shafts is three, and the connecting lines of the positions of the long shafts are arranged in an isosceles triangle.
Preferably, two ends of each long shaft are respectively arranged on the two chassis through the connecting seat and the third fixing block, and the connecting seat and the third fixing block are arranged on the end surfaces of the two chassis, which are opposite.
Preferably, a notch is respectively arranged on the circumferential walls of the two chassis.
Compared with the prior art, the utility model has the following advantages:
the polishing device for the longitudinal welding line of the inner cavity of the thin-wall long cylinder is arranged in the inner cavity of the thin-wall long cylinder and is used for polishing the longitudinal welding line of the inner cavity, and the rotation of the chassis and the disc can be controlled by adjusting the angle of the long shaft, so that the polishing assembly and the longitudinal welding line of the inner cavity of the thin-wall cylinder can be polished in a contact manner at any angle; and the polishing assembly transversely reciprocates in the inner cavity of the thin-wall long cylinder body through the cooperation of the electric push rod, so that the positioning and polishing of the longitudinal welding seam of the inner cavity are realized, and the polishing process is stable and efficient.
The device simple structure, installation and dismantlement are convenient, easy operation.
The device is adopted to polish the longitudinal welding line of the inner cavity of the thin-wall long cylinder, the polishing angle, the polishing force and the polishing propelling direction are adjustable, the inner cavity welding line is effectively prevented from being damaged in the polishing process, and the quality of products is improved; the ground inner cavity longitudinal weld seam excess height meets the precision requirement, and the service life of the thin-wall long cylinder body is prolonged.
Drawings
In order to more clearly illustrate the technical solutions of specific embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort to a person of ordinary skill in the art.
FIG. 1 is a schematic structural view of a polishing device for longitudinal welds in an inner cavity of a thin-walled long cylinder according to a first embodiment of the present utility model;
FIG. 2 is a right side view of the schematic diagram of FIG. 1;
FIG. 3 is a schematic structural diagram of a polishing device for longitudinal welds in an inner cavity of a thin-walled long cylinder according to a second embodiment of the present utility model;
reference numerals: the novel electric hand drill comprises a 1-chassis, a 101-through hole, a 2-long shaft, a 3-disc, a 31-first disc, a 32-second disc, a 33-third disc, a 4-first fixed block, a 41-first fixed block A, a 42-first fixed block B, a 43-first fixed block C, a 5-fixed seat, a 51-fixed seat A, a 52-fixed seat B, a 53-fixed seat C, a 6-electric push rod, a 7-polishing head, an 8-electric hand drill, a 9-clamp, a 10-connecting block, a 11-sliding block, a 12-handle, a 13-fixed ring, a 14-clamping block, a 15-second fixed block, a 16-connecting seat, a 17-third fixed block, an 18-notch and a 19-connecting plate.
Detailed Description
The present utility model will be further described with reference to the drawings and the specific embodiments, but it should not be construed that the scope of the subject matter of the present utility model is limited to the following embodiments, and various modifications, substitutions and alterations made according to the ordinary skill and familiar means of the art to which this utility model pertains are included within the scope of the present utility model without departing from the above technical idea of the utility model.
Example 1
The polishing device for the longitudinal weld joint of the inner cavity of the thin-wall long cylinder body is used for processing the inner cavity of the thin-wall cylinder body. Referring to fig. 1, the device comprises two chassis 1 with opposite end surfaces, wherein the two chassis 1 are connected through a long shaft 2; in this embodiment, the number of the long shafts 2 is three, and the connection lines of the positions of the long shafts 2 are arranged in an isosceles triangle, so that bending, torsion and deformation of the long shafts 2 under the action of load in the rotation process of the chassis 1 are avoided, and the stress states of other structures are improved. Referring to fig. 2, two ends of each long shaft 2 are respectively mounted on the two chassis 1 through a connecting seat 16 and a third fixing block 17, and the connecting seat 16 and the third fixing block 17 are arranged on opposite end surfaces of the two chassis 1. Namely, three connecting seats 16 and three third fixing blocks 17 are respectively arranged on two opposite end surfaces of the two chassis 1 and are used for fixing the long shaft 2 and the chassis 1. A gap 18 is respectively arranged on the circumferential walls of the two chassis 1, so that longitudinal welding seams of the inner cavities of the cylinder are not interfered, and the supporting function of the ends of the cylinder is realized. A through hole 101 is respectively arranged at the corresponding position of the middle parts of the two chassis 1. In this embodiment, the dimensions of the long axis 2 and the chassis 1 are determined according to the length and the inner diameter dimensions of the thin-walled cylinder. The long shaft 2 is made of 45# steel, and has good processability and low cost.
The sliding assembly is arranged on the long shaft 2 in a sliding manner and comprises a disc 3, a first fixed block 4 and a fixed seat 5 which are arranged on one end face of the disc 3, and an electric push rod 6 which is arranged on the other end face of the disc 3; the disc 3 and the first fixed block 4 are connected to the long shaft 2 in a sliding way; i.e. the long shaft 2 passes through the disc 3 and the first fixing block 4 and extends to both ends to be connected with the two chassis 1. And the number of the first fixing blocks 4 is equal to the number of the long shafts 2. The size of the disc 3 is smaller than that of the chassis 1, so that the disc 3 and other structural parts do not interfere with the inner cavity of the cylinder in the reciprocating motion process.
Specifically, in this embodiment, the number of the disks 3 is two, including a first disk 31 and a second disk 32 that are disposed opposite to each other and connected by a connecting plate 19, and the connecting plate 19 is welded to the first disk 31 and the second disk 32; the first fixing block 4 and the fixing seat 5 are respectively arranged on two opposite end surfaces of the first disc 31 and the second disc 32. Since the number of the first fixing blocks 4 is equal to the number of the long shafts 2, in the present embodiment, the long shafts 2 are three; correspondingly, three first fixing blocks 4 and one fixing seat 5 are welded on two opposite end surfaces of the first disc 31 and the second disc 32 respectively. As a preferred solution of this embodiment, the fixing base 5 is fixed at the middle positions of the first disc 31 and the second disc 32, and the three first fixing blocks 4 are connected with the fixing base 5 and correspond to the positions where the long shafts 2 are distributed. That is, the first fixing block 4 is sleeved on the long shaft 2 and is slidably connected with the long shaft 2. And the first fixed block 4 is smeared with lubricating oil or lubricating grease, so that the sliding movement speed control of the electric push rod 6 and the disc 3 is more stable.
In order to facilitate distinguishing the first fixed block 4 and the fixed seat 5 on the first disc 31 and the second disc 32, the first disc 31 will be referred to as a first fixed block a41 and a fixed seat a51 correspondingly; the second disk 32 is correspondingly referred to as a first fixed block B42 and a fixed block B52.
Specifically, three first fixing blocks a41 slidably connected to the long shaft 2 are disposed on an end surface of the first disc 31, and a fixing base a51 is disposed in the middle of the first disc 31. Three first fixing blocks B42 which are in sliding connection with the long shaft 2 are arranged on the end face of the second disc 32 opposite to the first disc 31, a fixing base B52 is arranged in the middle of the second disc 32, the first fixing blocks A41 are correspondingly arranged with the first fixing blocks B42, and the fixing bases A51 and the fixing bases B52 are correspondingly arranged.
In this embodiment, the electric putter 6 is connected to the first disc 31 through the through hole 101 of one of the chassis 1, and it should be noted that one of the chassis 1 refers to the chassis 1 adjacent to the first disc 31. Specifically, a second fixing block 15 is arranged at the joint of the electric push rod 6 and the first disc 31; the second fixing block 15 is welded on the first disc 31, and the electric push rod 6 is fixed on the second fixing block 15 through bolts, so that the disassembly and maintenance are convenient. The setting of electric pole is connected with the motor, converts the rotary motion of motor into linear reciprocating motion, promotes first disc 31 and second disc 31 and polishing assembly and realizes reciprocating motion along major axis 2, convenient operation has improved this grinding device's stability.
In this embodiment, the sharpening assembly is coupled to the second disk 32 by a mounting bracket B52.
The polishing assembly comprises a polishing head 7, an electric hand drill 8 arranged on the polishing head 7, a polishing fixing piece connected with the electric hand drill 8 and the polishing head 7, and a sliding adjusting piece connected with the polishing fixing piece and driving the polishing head 7 to move in the vertical direction; the sliding adjusting piece is arranged on the fixed seat B52. The vertical direction is herein referred to as the vertical downward direction based on the sanding head.
The polishing fixing piece comprises a clamp 9 connected with the electric hand drill 8 and the polishing head 7, and a connecting block 10 arranged on the side wall of the clamp 9; the connecting block 10 is connected with the fixed seat B52 through a sliding adjusting piece.
The sliding adjusting piece comprises a sliding block 11 connected with the connecting block 10, a handle 12 arranged on the sliding block 11, a fixed ring 13 arranged above the sliding block 11 and connected with the handle 12 through threads, and a clamping block 14 connected with the sliding block 11 and the fixed ring 13; the sliding block 11 is in sliding connection with the clamping block 14, and the clamping block 14 is fixed on the fixing seat B52.
Specifically, the polishing head 7 is set to be a ball end mill, the strength and toughness are high, the loss is small, the transverse cutting area is stable, and the cutting damage of the inner cavity of the cylinder body can not be caused. The electric hand drill 8 is connected with the polishing head 7 and is fixed through a clamp 9 and a connecting block 10; the polishing head 7 cuts the surface of the welding seam by using the rotation generated by the electric hand drill 8 as power, and realizes the positioning and polishing of the longitudinal welding seam. The connecting block 10 is arranged on the side wall of the clamping hoop 9 in the length direction. One side of the connecting block 10, which faces away from the clamping hoop 9, is fixedly connected with a sliding block 11, and the sliding block 11 is fixed on the upper side wall of the connecting block 10.
A handle 12 is arranged on the top of the sliding block 11, and a fixed ring 13 is arranged above the top of the sliding block 11; the handle 12 passes through the fixed ring 13 to be connected with the sliding block 11, and the handle 12 is connected with the fixed ring 13 through threads. Specifically, the fixing ring 13 is fixed on the top side wall of the clamping block 14, and the sliding block 11 is slidably connected with the clamping block 14. That is, in this embodiment, the slider 11 is slidably connected to the clamping block 14 and fixedly connected to the connecting block 10, and the slider 11 moves in the vertical direction of the clamping block 14 to drive the sanding head 7 to slide in the vertical direction, and when the sanding head slides to a desired position, the sanding head is fixed by screwing the handle 12 to the fixing ring 13. The clamping block 14 is fixed on the side end face of the fixed seat B52.
I.e. in the present embodiment two discs 3 are provided, a first disc 31 and a second disc 32, the first disc 31 and the second disc 32 being connected by the connection plate 19. The electric putter 6 is connected to the first disc 31 and the grinding assembly is arranged on the second disc 32.
When the device is used, the device is placed in the inner cavity of the thin-wall cylinder, the angle of the long shaft 2 is adjusted to control the rotation of the chassis 1 and the disc 3, so that the polishing head 7 is in contact with the longitudinal welding seam of the inner cavity of the thin-wall cylinder at any angle, the electric push rod 6 pushes the first disc 31 to slide, drives the second disc 32 to slide, and further drives the polishing assembly to polish the welding seam of the inner cavity.
Example two
Referring to fig. 3, the difference from the first embodiment is that: in this embodiment, the disc 3 is provided as one disc, which is referred to herein as a third disc 33 for convenience of distinction. Three first fixing blocks C43 and a fixing seat C53 are provided on one end surface of the third disc 33; the sanding assembly is connected to the third disc 33 by a holder C53. That is, in this embodiment, the power pushrod 6 and the sanding assembly are attached to the same third disk 33.
The polishing device for the longitudinal welding line of the inner cavity of the thin-wall long cylinder is arranged in the inner cavity of the thin-wall long cylinder and is used for polishing the longitudinal welding line of the inner cavity, and the rotation of the chassis and the disc can be controlled by adjusting the angle of the long shaft, so that the polishing assembly and the longitudinal welding line of the inner cavity of the thin-wall cylinder can be polished in a contact manner at any angle; and the polishing assembly transversely reciprocates in the inner cavity of the thin-wall long cylinder body through the cooperation of the electric push rod, so that the positioning and polishing of the longitudinal welding seam of the inner cavity are realized, and the polishing process is stable and efficient.
The device simple structure, installation and dismantlement are convenient, easy operation.
The device is adopted to polish the longitudinal welding line of the inner cavity of the thin-wall long cylinder, the polishing angle, the polishing force and the polishing propelling direction are adjustable, the inner cavity welding line is effectively prevented from being damaged in the polishing process, and the quality of products is improved; the ground inner cavity longitudinal weld seam excess height meets the precision requirement, and the service life of the thin-wall long cylinder body is prolonged.
The utility model has been described in detail with reference to the polishing device for longitudinal welds in the inner cavity of a thin-walled long cylinder, and specific examples are applied herein to illustrate the structure and working principle of the utility model. It should be noted that it will be apparent to those skilled in the art that various improvements and modifications can be made to the present utility model without departing from the principles of the utility model, and such improvements and modifications fall within the scope of the appended claims.
Claims (10)
1. A polishing device for longitudinal welds of an inner cavity of a thin-wall long cylinder is characterized in that: comprises two opposite chassis (1), wherein the two chassis (1) are connected through a long shaft (2);
the sliding assembly is arranged on the long shaft (2) and comprises a disc (3), a first fixed block (4) and a fixed seat (5) which are arranged on one end face of the disc (3), and an electric push rod (6) which is arranged on the other end face of the disc (3); the disc (3) and the first fixed block (4) are connected to the long shaft in a sliding manner; the number of the first fixing blocks (4) is equal to the number of the long shafts (2);
the polishing assembly comprises a polishing head (7), an electric hand drill (8) arranged on the polishing head (7), a polishing fixing piece connected with the electric hand drill (8) and the polishing head (7), and a sliding adjusting piece connected with the polishing fixing piece and driving the polishing head (7) to move in the vertical direction; the sliding adjusting piece is arranged on the fixed seat (5).
2. The polishing device for longitudinal welds in an inner cavity of a thin-walled long cylinder according to claim 1, wherein: the polishing fixing piece comprises a clamp (9) connected with the electric hand drill (8) and the polishing head (7), and a connecting block (10) arranged on the side wall of the clamp (9); the connecting block (10) is connected with the fixed seat (5) through a sliding adjusting piece.
3. The polishing device for longitudinal welds in an inner cavity of a thin-walled long cylinder according to claim 2, wherein: the sliding adjusting piece comprises a sliding block (11) connected with the connecting block (10), a handle (12) arranged on the sliding block (11), a fixed ring (13) arranged above the sliding block (11) and connected with the handle (12) through threads, and a clamping block (14) connected with the sliding block (11) and the fixed ring (13); the sliding block (11) is in sliding connection with the clamping block (14); the clamping blocks (14) are fixed on the fixing seat (5).
4. The polishing device for longitudinal welds in an inner cavity of a thin-walled long cylinder according to claim 2, wherein: the grinding head (7) is arranged as a ball end mill.
5. The polishing device for longitudinal welds in an inner cavity of a thin-walled long cylinder according to claim 1, wherein: the number of the disks (3) is two, and the disks comprise a first disk (31) and a second disk (32) which are oppositely arranged and are connected through a connecting plate (19); the two opposite end surfaces of the first disc (31) and the second disc (32) are respectively provided with a first fixed block (4) and a fixed seat (5).
6. The polishing device for longitudinal welds in an inner cavity of a thin-walled long cylinder according to claim 5, wherein: the electric push rod (6) penetrates through one chassis (1) to be connected with the first disc (31), and a second fixed block (15) is arranged at the joint of the electric push rod (6) and the first disc (31); the polishing assembly is connected with the second disc (32) through the fixing seat (5).
7. The polishing device for longitudinal welds in an inner cavity of a thin-walled long cylinder according to claim 6, wherein: the second fixing block (15) is welded on the first disc (31), and the electric push rod (6) is fixed on the second fixing block (15) through bolts.
8. The polishing device for longitudinal welds in an inner cavity of a thin-walled long cylinder according to claim 1, wherein: the number of the long shafts (2) is three, and the connecting lines of the positions of the long shafts are arranged in an isosceles triangle.
9. The polishing device for longitudinal welds in an inner cavity of a thin-walled long cylinder according to claim 8, wherein: two ends of each long shaft (2) are respectively arranged on the two chassis (1) through a connecting seat (16) and a third fixed block (17), and the connecting seat (16) and the third fixed block (17) are arranged on the end surfaces of the two chassis (1) which are opposite.
10. The thin-walled long-barrel inner-cavity longitudinal-weld polishing device as defined in claim 9, wherein: a notch (18) is respectively arranged on the circumferential walls of the two chassis (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320339475.8U CN219465652U (en) | 2023-02-28 | 2023-02-28 | Polishing device for longitudinal weld joint of inner cavity of thin-wall long cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320339475.8U CN219465652U (en) | 2023-02-28 | 2023-02-28 | Polishing device for longitudinal weld joint of inner cavity of thin-wall long cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219465652U true CN219465652U (en) | 2023-08-04 |
Family
ID=87433694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320339475.8U Active CN219465652U (en) | 2023-02-28 | 2023-02-28 | Polishing device for longitudinal weld joint of inner cavity of thin-wall long cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219465652U (en) |
-
2023
- 2023-02-28 CN CN202320339475.8U patent/CN219465652U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108580968B (en) | Special machine tool for boring inner hole of ultra-long large-diameter cylinder | |
| CN219465652U (en) | Polishing device for longitudinal weld joint of inner cavity of thin-wall long cylinder | |
| CN114425662A (en) | Two-chuck zero-tailing laser pipe cutting machine | |
| CN109277608B (en) | Double-milling-head machining device | |
| CN111251088A (en) | Supporting grinding device for crosshead pin and grinding method | |
| CN108465993B (en) | Rotary positioning device for welding | |
| CN102407472A (en) | Polishing method and tooling for surplus height of weld joint | |
| CN206326495U (en) | A kind of high-precision flat surface grinding | |
| CN211540602U (en) | Hub bearing flange composite forming grinding mechanism | |
| CN212762601U (en) | Automatic polishing device for longitudinal joint of cabin | |
| CN112171336A (en) | Quick positioning and clamping device for metal cutting | |
| CN211193202U (en) | Blank steel ingot surface grinding and polishing device | |
| CN209850573U (en) | Steel pipe grinding device | |
| CN209579262U (en) | A kind of crankshaft of diesel engine polishing tool | |
| CN113798604A (en) | Numerical control machine tool | |
| CN220093441U (en) | Intelligent laser high-speed cladding device for robot | |
| CN220944449U (en) | Novel numerical control roll grinder | |
| CN116765484B (en) | Pneumatic tool ironwork processing equipment | |
| CN217941981U (en) | Double-bevel processing machine tool | |
| CN213438896U (en) | Polishing device for online maintenance of hydraulic cylinder | |
| CN216359349U (en) | Inner wall machining device for large-size train brake cylinder | |
| CN215240081U (en) | Movable polishing machine | |
| CN219026179U (en) | Simple scraping/grinding device | |
| CN218283870U (en) | Crawler driving wheel mounting surface milling device | |
| CN216859228U (en) | Novel production refractory material is with repairing fast device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |