CN113681192A - Three-edged drill rod processing method and automatic welding equipment thereof - Google Patents
Three-edged drill rod processing method and automatic welding equipment thereof Download PDFInfo
- Publication number
- CN113681192A CN113681192A CN202111083974.7A CN202111083974A CN113681192A CN 113681192 A CN113681192 A CN 113681192A CN 202111083974 A CN202111083974 A CN 202111083974A CN 113681192 A CN113681192 A CN 113681192A
- Authority
- CN
- China
- Prior art keywords
- drill rod
- welding
- triangular
- edged drill
- edged
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003466 welding Methods 0.000 title claims abstract description 84
- 238000003672 processing method Methods 0.000 title description 5
- 238000005242 forging Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 239000010959 steel Substances 0.000 claims description 22
- 238000003754 machining Methods 0.000 claims description 13
- 238000005553 drilling Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention belongs to the technical field of drill rod production. The method adopts an inner joint and an outer joint which are formed by forging and welded by automatic welding equipment, wherein the automatic welding equipment comprises a base, a fixed sleeve, a floating welding device and a driving device; the fixed sleeves are arranged at the two ends of the base, both the fixed sleeves are rotationally connected with the base, and the fixed sleeves are connected with the driving device and are driven by the driving device to rotate; the three-edged drill rod is fixedly clamped between the two fixed sleeves and rotates along with the fixed sleeves; the floating welding device comprises a welding gun and a floating device, the welding gun is connected with the floating device and is placed at a position to be welded of the three-edged drill rod, one end of the floating device is in sliding contact with the outer surface of the three-edged drill rod and floats up and down along with the rotation of the three-edged drill rod, and the distance between the welding gun and the three-edged drill rod is kept unchanged; the invention carries out floating positioning by utilizing the shape of the three-edged drill rod, the positioning is more accurate, and the welding quality is improved.
Description
Technical Field
The invention belongs to the technical field of drill rod production, and relates to a machining method of a triangular drill rod and automatic welding equipment thereof.
Background
The traditional triangular drill rod consists of a triangular outer joint, a triangular steel pipe and a triangular inner joint. The outer joint and the inner joint of the triangular drill rod are both formed by processing round steel, the processing allowance is large, the milling processing is troublesome and labor-consuming, and materials are wasted. After the triangular inner joint, the triangular outer joint and the triangular steel pipe are assembled, firstly, the positioning spot welding is carried out by tools, and then, the manual surfacing welding is adopted for in place. The manual welding mode has the disadvantages of severe environment, high labor intensity and higher requirement on the welding level of an operator.
Disclosure of Invention
In view of the above, the invention aims to overcome the defects of the existing three-edged drill rod production process, and provides a three-edged drill rod processing method and automatic welding equipment thereof.
In order to achieve the purpose, the invention provides the following technical scheme:
an automatic welding device for a three-edged drill rod comprises a base, a fixed sleeve, a floating welding device and a driving device; the fixed sleeves are arranged at the two ends of the base, the two fixed sleeves are rotatably connected with the base, and the fixed sleeves are connected with the driving device and driven by the driving device to rotate; the three-edged drill rod is fixedly clamped between the two fixing sleeves and rotates along with the fixing sleeves; the floating welding device comprises a welding gun and a floating device, the welding gun is connected with the floating device and is placed at a position to be welded of the three-edged drill rod, one end of the floating device is in sliding contact with the outer surface of the three-edged drill rod and floats up and down along with the rotation of the three-edged drill rod, and the distance between the welding gun and the three-edged drill rod is kept unchanged.
Further, the floating device comprises a fixed plate, a movable plate and a guide rod; one end of the guide rod is provided with a roller and is in sliding contact with the outer surface of the triangular drill rod through the roller; the guide rod and the welding gun are both fixedly connected with the movable plate through a locking mechanism, and the extension length is adjusted through the locking mechanism; the guide rod is provided with a step end face, a spring is arranged between the step end face and the end face of the fixing plate, and the guide rod drives the roller to be in contact with the three-edged drill rod under the drive of the spring.
Further, the floating device also comprises a bracket and an adjusting screw rod; the fixed plate is connected with the support through an adjusting screw rod, and the adjusting screw rod is used for adjusting the distance between the fixed plate and the three-edged drill rod.
The device further comprises a V-shaped supporting block for assisting the three-edged drill rod to be clamped and fixed, and the V-shaped supporting block is arranged below the three-edged drill rod.
Furthermore, the two welding guns are respectively arranged at the positions to be welded of the outer joint and the positions to be welded of the inner joint of the three-edged drill rod.
A three-edged drill rod processing method comprises the following steps:
1) forging the inner joint and the outer joint: the outer joint and the inner joint are formed by forging, and machining allowance of 0.5-0.8 mm is reserved on one side of each forged blank of the outer joint and the inner joint;
2) machining the inner joint and the outer joint: respectively positioning and processing an assembly positioning spigot and a triangular shape on the outer joint and the inner joint by using an inner conical surface of the triangular inner joint and an outer conical surface of the triangular outer joint, and turning threads on the outer joint and the inner joint by using the assembly positioning spigot as a reference;
3) processing the triangular steel pipe: processing the triangular steel pipe to control the total length according to a set size, and respectively processing an inner assembly seam allowance and an outer assembly seam allowance at two ends of the triangular steel pipe, wherein the inner assembly seam allowance and the outer assembly seam allowance respectively correspond to the assembly positioning seam allowances on the outer joint and the inner joint;
4) assembling: positioning and assembling the outer joint, the inner joint and the triangular steel pipe;
5) welding: the assembled triangular drill rod is welded by the automatic welding equipment for the triangular drill rod.
Further, the welding comprises the following steps:
A. fixing a V-shaped supporting block on a base, supporting a triangular drill rod, and connecting and fixing the fixing sleeves at two ends with the triangular drill rod through threads;
B. the fixing plate is driven to move through the adjusting screw rod, so that the roller is in contact with the outer surface of the triangular drill rod, and the spring is in a compressed state; opening a locking mechanism, adjusting the distance between a welding gun and a position to be welded, and locking the position of the welding gun after the distance is properly adjusted;
C. and adjusting welding parameters, separating the V-shaped supporting block from the three-edged drill rod, starting the driving device, and driving the three-edged drill rod to rotate by the fixed sleeve for welding.
Further, the distance between the welding gun and the position to be welded of the three-edged drill rod is controlled to be 2-3 mm.
Further, in the step 3), positioning by taking the assembling spigot of the triangular steel pipe as a reference, and processing a smooth triangular welding positioning surface on the triangular steel pipe; and 5), enabling the roller to be in sliding contact with the welding positioning surface.
The invention has the beneficial effects that:
1. the inner joint and the outer joint of the triangular drill rod are formed by forging, so that the material is saved, the defects of as-cast porosity and the like generated in the smelting process of metal are eliminated, and the microstructure is optimized; meanwhile, the machining allowance is less, the machining efficiency is improved, and the material cost is reduced.
2. The automatic welding equipment adopts a floating welding mode to weld, and utilizes the shape of the three-edged drill rod to perform floating positioning, so that the positioning is more accurate, and the welding quality is improved.
3. According to the automatic welding equipment disclosed by the invention, the inner joint and the outer joint can be welded simultaneously, the welding efficiency is improved, the automation degree of the process is high, and the labor intensity of personnel is reduced.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic view of an automatic welding device for a three-edged drill rod in the invention;
reference numerals: 1-driving a motor; 2-a left base; 3-left fixing sleeve; 4-inner joint; 5-a triangular steel pipe; 6-external joint; 7-welding a positioning surface; 8-a scaffold; 9-adjusting the screw rod; 10-fixing the plate; 11-a welding gun; 12-a guide bar; 13-a spring; 14-a roller; 15-moving the board; 16-a locking mechanism; 17-V shaped support blocks; 18-right fixation sleeves; 19-right base; and 20-oil cylinder.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.
Referring to fig. 1, an automatic welding device for a three-edged drill rod includes a base, a fixing sleeve, a floating welding device, and a driving device; the base comprises a left base 2 and a right base 19, the fixing sleeve comprises a left fixing sleeve 3 and a right fixing sleeve 18, the left fixing sleeve 3 is rotatably arranged on the left base 2 and is connected with a driving device, and the driving device adopts a driving motor 1; the right fixing sleeve 18 is rotatably arranged on the right base 19 and is connected with the oil cylinder 20, and the three-edged drill rod is clamped between the left fixing sleeve 3 and the right fixing sleeve 18 and is driven by the driving motor 1 to rotate.
The floating welding device comprises a welding gun 11 and a floating device, wherein the floating device comprises a bracket 8, an adjusting screw rod 9, a fixing plate 10, a moving plate 15 and a guide rod 12; one end of the guide rod 12 is provided with a roller 14 and is in sliding contact with the outer surface of the triangular drill rod through the roller 14; the guide rod 12 and the welding gun 11 are both fixedly connected with the movable plate 15 through a locking mechanism 16, and the extension length is adjusted through the locking mechanism 16; in the present embodiment, the locking mechanism 16 employs a bolt; the guide rod 12 is provided with a step end face, a spring 13 is arranged between the step end face and the end face of the fixing plate 10, and the guide rod 12 drives the roller 14 to keep contact with the three-edged drill rod under the driving of the spring 13.
The welding gun 11 is mounted on the moving plate 15 through the locking mechanism 16, the fixed plate 10 is connected with the bracket 8 through the adjusting screw rod 9, and the distance between the fixed plate and the three-edged drill rod is adjusted through the adjusting screw rod 9. Two welding guns 11 are respectively arranged at the positions to be welded of the outer joint 6 and the inner joint 4 of the three-edged drill rod.
The automatic welding equipment in the embodiment further comprises a V-shaped supporting block 17 used for assisting the three-edged drill rod to be clamped and fixed, and the V-shaped supporting block 17 is installed below the three-edged drill rod through a lifting mechanism.
A three-edged drill rod processing method comprises the following steps:
1) forging the inner joint and the outer joint: the outer joint 6 and the inner joint 4 are formed by forging, and machining allowance of 0.5-0.8 mm is reserved on one side of each forged blank of the outer joint 6 and the inner joint 4;
2) machining the inner joint and the outer joint: respectively positioning and processing the assembly positioning spigot and the triangular shape on the outer joint 6 and the inner joint 4 by using the inner conical surface of the triangular inner joint 4 and the outer conical surface of the triangular outer joint 6, and turning the threads on the outer joint 6 and the inner joint 4 by using the assembly positioning spigot as a reference;
3) processing the triangular steel pipe: the total length of the three-edged steel pipe 5 is controlled according to the set size, and an inner assembly seam allowance and an outer assembly seam allowance are respectively machined at two ends of the three-edged steel pipe 5, and the inner assembly seam allowance and the outer assembly seam allowance respectively correspond to the assembly positioning seam allowances on the outer joint 6 and the inner joint 4; positioning by taking the assembling spigot of the triangular steel pipe 5 as a reference, and processing a smooth triangular welding positioning surface 7 on the triangular steel pipe 5
4) Assembling: positioning and assembling the outer joint 6, the inner joint 4 and the triangular steel pipe 5;
5) welding: the assembled three-edged drill rod is welded by the automatic welding equipment for the three-edged drill rod in the embodiment, and before welding, the roller 14 is arranged on the welding positioning surface 7 and is in sliding contact with the welding positioning surface.
The welding comprises the following steps:
A. firstly fixing a V-shaped supporting block 17 on a base, supporting a three-edged drill rod, tightly propping a right fixing sleeve 18 by an oil cylinder 20, driving a left fixing sleeve 3 to rotate by a driving motor 1, connecting the left fixing sleeve 3 with an inner joint 4 in a threaded manner, and driving an outer joint 6 to be connected with the right fixing sleeve 18 in a threaded manner;
B. the fixing plate 10 is driven to move by the adjusting screw rod 9, so that the roller 14 is in contact with the outer surface of the triangular drill rod, and the spring 13 is in a compressed state; opening the locking mechanism 16, adjusting the distance between the welding gun 11 and the position to be welded, controlling the distance between the welding gun 11 and the position to be welded of the three-edged drill rod to be 2-3 mm, and locking the position of the welding gun 11;
C. and adjusting welding parameters, separating the V-shaped supporting block 17 from the triangular drill rod through the lifting mechanism, starting the driving motor 1, and driving the triangular drill rod to rotate by the left fixed sleeve 3 for welding.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.
Claims (9)
1. The utility model provides a three arris drilling rod automatic weld equipment which characterized in that: comprises a base, a fixed sleeve, a floating welding device and a driving device; the fixed sleeves are arranged at the two ends of the base, the two fixed sleeves are rotatably connected with the base, and the fixed sleeves are connected with the driving device and driven by the driving device to rotate; the three-edged drill rod is fixedly clamped between the two fixing sleeves and rotates along with the fixing sleeves; the floating welding device comprises a welding gun and a floating device, the welding gun is connected with the floating device and is placed at a position to be welded of the three-edged drill rod, one end of the floating device is in sliding contact with the outer surface of the three-edged drill rod and floats up and down along with the rotation of the three-edged drill rod, and the distance between the welding gun and the three-edged drill rod is kept unchanged.
2. The three-edged drill rod automatic welding equipment according to claim 1, characterized in that: the floating device comprises a fixed plate, a movable plate and a guide rod; one end of the guide rod is provided with a roller and is in sliding contact with the outer surface of the triangular drill rod through the roller; the guide rod and the welding gun are both fixedly connected with the movable plate through a locking mechanism, and the extension length is adjusted through the locking mechanism; the guide rod is provided with a step end face, a spring is arranged between the step end face and the end face of the fixing plate, and the guide rod drives the roller to be in contact with the three-edged drill rod under the drive of the spring.
3. The three-edged drill rod automatic welding equipment according to claim 2, characterized in that: the floating device also comprises a bracket and an adjusting screw rod; the fixed plate is connected with the support through an adjusting screw rod, and the adjusting screw rod is used for adjusting the distance between the fixed plate and the three-edged drill rod.
4. The three-edged drill rod automatic welding equipment according to claim 2, characterized in that: the device is characterized by further comprising a V-shaped supporting block for assisting the triangular drill rod to be clamped and fixed, wherein the V-shaped supporting block is arranged below the triangular drill rod.
5. The three-edged drill rod automatic welding equipment according to claim 2, characterized in that: the two welding guns are respectively arranged at the positions to be welded of the outer joint and the positions to be welded of the inner joint of the three-edged drill rod.
6. The machining method of the three-edged drill rod is characterized by comprising the following steps of:
1) forging the inner joint and the outer joint: the outer joint and the inner joint are formed by forging, and machining allowance of 0.5-0.8 mm is reserved on one side of each forged blank of the outer joint and the inner joint;
2) machining the inner joint and the outer joint: respectively positioning and processing an assembly positioning spigot and a triangular shape on the outer joint and the inner joint by using an inner conical surface of the triangular inner joint and an outer conical surface of the triangular outer joint, and turning threads on the outer joint and the inner joint by using the assembly positioning spigot as a reference;
3) processing the triangular steel pipe: processing the triangular steel pipe to control the total length according to a set size, and respectively processing an inner assembly seam allowance and an outer assembly seam allowance at two ends of the triangular steel pipe, wherein the inner assembly seam allowance and the outer assembly seam allowance respectively correspond to the assembly positioning seam allowances on the outer joint and the inner joint;
4) assembling: positioning and assembling the outer joint, the inner joint and the triangular steel pipe;
5) welding: the assembled triangular drill rod is welded by the automatic welding equipment for the triangular drill rod as claimed in any one of claims 1-5.
7. The machining method of the three-edged drill rod according to claim 6, characterized in that: the welding comprises the following steps:
A. fixing a V-shaped supporting block on a base, supporting a triangular drill rod, and connecting and fixing the fixing sleeves at two ends with the triangular drill rod through threads;
B. the fixing plate is driven to move through the adjusting screw rod, so that the roller is in contact with the outer surface of the triangular drill rod, and the spring is in a compressed state; opening a locking mechanism, adjusting the distance between a welding gun and a position to be welded, and locking the position of the welding gun after the distance is properly adjusted;
C. and adjusting welding parameters, separating the V-shaped supporting block from the three-edged drill rod, starting the driving device, and driving the three-edged drill rod to rotate by the fixed sleeve for welding.
8. The machining method of the three-edged drill rod according to claim 7, characterized in that: and controlling the distance between the welding gun and the position to be welded of the three-edged drill rod to be 2-3 mm.
9. The machining method of the three-edged drill rod according to claim 7, characterized in that: in the step 3), positioning by taking the assembling spigot of the triangular steel pipe as a reference, and processing a smooth triangular welding positioning surface on the triangular steel pipe; and 5), placing the roller on the welding positioning surface and making sliding contact with the welding positioning surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111083974.7A CN113681192A (en) | 2021-09-14 | 2021-09-14 | Three-edged drill rod processing method and automatic welding equipment thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111083974.7A CN113681192A (en) | 2021-09-14 | 2021-09-14 | Three-edged drill rod processing method and automatic welding equipment thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113681192A true CN113681192A (en) | 2021-11-23 |
Family
ID=78586445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111083974.7A Pending CN113681192A (en) | 2021-09-14 | 2021-09-14 | Three-edged drill rod processing method and automatic welding equipment thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113681192A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6808210B1 (en) * | 1997-09-03 | 2004-10-26 | The Charles Machine Works, Inc. | Drill pipe with upset ends having constant wall thickness and method for making same |
| CN201261115Y (en) * | 2008-08-29 | 2009-06-24 | 上海宝冶工程技术有限公司 | Semiautomatic welding device for rectangular workpiece |
| CN101581200A (en) * | 2009-05-31 | 2009-11-18 | 盘锦辽河油田派普钻具制造有限公司 | 120 steel grade drill pipe and manufacturing process method thereof |
| CN103143901A (en) * | 2013-04-03 | 2013-06-12 | 江苏拓海煤矿钻探机械有限公司 | Welding method of high-strength prism drill rod for gas drainage from coal bed |
| CN106238985A (en) * | 2016-08-12 | 2016-12-21 | 合肥江航飞机装备有限公司 | A kind of welding tooling of auxiliary tank of aircraft casing annular weld seam |
| CN206445410U (en) * | 2016-12-20 | 2017-08-29 | 淮北矿业（集团）勘探工程有限责任公司 | A kind of blade welder of auger stem |
| CN108515306A (en) * | 2018-05-28 | 2018-09-11 | 襄城伟业智能机电设备制造有限公司 | A kind of trigone circular arc drilling rod Intelligent welding equipment |
| CN110640414A (en) * | 2019-09-29 | 2020-01-03 | 中煤科工集团重庆研究院有限公司 | Processing technology of directional drill rod |
| CN212761787U (en) * | 2020-07-06 | 2021-03-23 | 上海海综工业技术有限公司 | Open type pipe welding equipment |
| CN215658541U (en) * | 2021-09-14 | 2022-01-28 | 重庆安标检测研究院有限公司 | Automatic welding equipment for triangular drill rod |
-
2021
- 2021-09-14 CN CN202111083974.7A patent/CN113681192A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6808210B1 (en) * | 1997-09-03 | 2004-10-26 | The Charles Machine Works, Inc. | Drill pipe with upset ends having constant wall thickness and method for making same |
| CN201261115Y (en) * | 2008-08-29 | 2009-06-24 | 上海宝冶工程技术有限公司 | Semiautomatic welding device for rectangular workpiece |
| CN101581200A (en) * | 2009-05-31 | 2009-11-18 | 盘锦辽河油田派普钻具制造有限公司 | 120 steel grade drill pipe and manufacturing process method thereof |
| CN103143901A (en) * | 2013-04-03 | 2013-06-12 | 江苏拓海煤矿钻探机械有限公司 | Welding method of high-strength prism drill rod for gas drainage from coal bed |
| CN106238985A (en) * | 2016-08-12 | 2016-12-21 | 合肥江航飞机装备有限公司 | A kind of welding tooling of auxiliary tank of aircraft casing annular weld seam |
| CN206445410U (en) * | 2016-12-20 | 2017-08-29 | 淮北矿业（集团）勘探工程有限责任公司 | A kind of blade welder of auger stem |
| CN108515306A (en) * | 2018-05-28 | 2018-09-11 | 襄城伟业智能机电设备制造有限公司 | A kind of trigone circular arc drilling rod Intelligent welding equipment |
| CN110640414A (en) * | 2019-09-29 | 2020-01-03 | 中煤科工集团重庆研究院有限公司 | Processing technology of directional drill rod |
| CN212761787U (en) * | 2020-07-06 | 2021-03-23 | 上海海综工业技术有限公司 | Open type pipe welding equipment |
| CN215658541U (en) * | 2021-09-14 | 2022-01-28 | 重庆安标检测研究院有限公司 | Automatic welding equipment for triangular drill rod |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109465594B (en) | Tubular product welding set that construction used | |
| CN106181158B (en) | A kind of angle adjustable fixed width steel plate automatic welding machine people | |
| CN114211162B (en) | Electric power pole body, flange welding robot and method thereof | |
| CN105880856A (en) | Automatic welding device for hub of electric car | |
| CN215658541U (en) | Automatic welding equipment for triangular drill rod | |
| CN205166117U (en) | Automatic welding device | |
| KR20000073586A (en) | Auto welding system for recycling engine block | |
| CN114833505A (en) | Industrial automatic electric arc welding workbench | |
| CN1272161C (en) | Heat melting butt joint welder for plastic pipe | |
| CN113681192A (en) | Three-edged drill rod processing method and automatic welding equipment thereof | |
| CN101117178B (en) | Swing mechanism for straight line transportation | |
| CN116810277B (en) | Welding equipment for automobile parts | |
| CN113547239B (en) | Laser welding tooling equipment for automobile flow channel | |
| CN212124482U (en) | Automatic rib adding device for printing roller | |
| CN219767193U (en) | Automatic welding device for radiator fin tube | |
| CN202123327U (en) | Welding worktable of hydraulic cylinder | |
| CN112238317A (en) | Roller assembly tool and assembly method of road roller | |
| CN109955016B (en) | Five-blade unevenly distributed drill bit steel core welding workstation for oil field and use method | |
| CN111216438A (en) | Automatic rib adding device for printing roller | |
| CN115780961B (en) | Intersecting line cutting machine for pipe welding | |
| CN217212431U (en) | Steel construction welding department quality detection device | |
| CN212420309U (en) | Building heating ventilation pipeline welding fixture | |
| CN215242961U (en) | Full-automatic nonmetal composite pipe hot electric smelting pipe fitting connecting device | |
| CN211680911U (en) | Cutting and groove pressing dual-function machine for fire fighting pipe | |
| CN115674697A (en) | Full-automatic nonmetal composite pipe hot electric smelting pipe fitting connecting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211123 |
|
| RJ01 | Rejection of invention patent application after publication |