CN110508845B - Drilling equipment suitable for four sides of square pipe - Google Patents
Drilling equipment suitable for four sides of square pipe Download PDFInfo
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- CN110508845B CN110508845B CN201910833177.2A CN201910833177A CN110508845B CN 110508845 B CN110508845 B CN 110508845B CN 201910833177 A CN201910833177 A CN 201910833177A CN 110508845 B CN110508845 B CN 110508845B
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- 238000005553 drilling Methods 0.000 title claims abstract description 40
- 230000005540 biological transmission Effects 0.000 claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims abstract description 16
- 238000003825 pressing Methods 0.000 claims description 5
- 230000017105 transposition Effects 0.000 abstract description 4
- 230000001174 ascending effect Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/20—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring workpiece characteristics, e.g. contour, dimension, hardness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/26—Fluid-pressure drives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
- B23Q5/38—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously
- B23Q5/40—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously by feed shaft, e.g. lead screw
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
- B23Q7/003—Cyclically moving conveyors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention relates to drilling equipment suitable for four side surfaces of a square tube, which comprises a workbench, wherein a drilling driving assembly is arranged at the front part of the workbench; square blocks are arranged at the rear part of the workbench; a U-shaped conversion frame is arranged above each square block, and each conversion frame is connected with a square shaft; the square shaft is respectively connected with a lifting control assembly and a rotating control assembly; the lifting control assembly and the rotation control assembly are both connected with a general driving assembly. The square tube drilling machine is high in automation degree, five steps of descending, drilling, ascending, detecting and transposition can be performed in sequence in a circulating mode through gear tooth alternating type transmission and belt transmission on the basis of clamping the square tubes, accordingly, the drilling processing and detecting of all side faces of batch square tubes can be achieved rapidly and synchronously, and the relative drilling processing efficiency is high.
Description
Technical Field
The invention relates to machining equipment, in particular to drilling equipment suitable for four side faces of a square pipe.
Background
Generally speaking, square pipe is being applied to automobile parts equipment, especially when need install a plurality of small-size spare parts on its every side, then need add man-hour, all will carry out drilling processing on four sides of square pipe, assemble these small-size spare parts through the hole that bores, but in actual production and processing, because every face all need drill, and the square pipe number that needs drilling processing also is also more and still need detect during the drilling in order to prevent to leak and bore, so traditional drilling equipment hardly satisfies actual high efficiency processing and detection demand.
Disclosure of Invention
In order to meet the requirements for drilling the square pipe, the invention provides drilling equipment suitable for four sides of the square pipe.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
the drilling equipment suitable for four sides of the square tube comprises a workbench, wherein a drilling driving assembly is arranged at the front part of the workbench; square blocks are arranged at the rear part of the workbench; a U-shaped conversion frame is arranged above each square block, and each conversion frame is connected with a square shaft; the square shaft is respectively connected with a lifting control assembly and a rotating control assembly; the lifting control assembly and the rotation control assembly are both connected with a general driving assembly. The size of the square block is matched with the size of the inner side of the square tube to be processed.
The drilling driving assembly comprises a hydraulic cylinder and a base plate, wherein the hydraulic cylinder is fixedly installed on the workbench, the base plate is installed on the workbench in a front-back sliding mode, a plurality of motors are arranged and installed on the base plate in the horizontal direction, and each motor is connected with a drill bit. In addition, the worktable is provided with a bottom groove which is in sliding fit with the seat board.
The lifting control assembly comprises a guide frame and a lead screw which are respectively arranged on the workbench in a fixing mode and a bearing seat connecting mode; the lead screw is provided with a base plate in vertical sliding fit with the guide frame in a threaded manner, and each square shaft is arranged on the base plate through a bearing.
The rotary control assembly comprises belt dividing wheels correspondingly mounted on the upper portion of each square shaft, and a first belt for driving the belt dividing wheels to be connected is arranged among all the belt dividing wheels.
The rotary control assembly also comprises a hanging bracket fixedly arranged on the workbench, and an input shaft and an output shaft are respectively arranged on the hanging bracket through bearings; the input shaft and the output shaft are both connected with a transmission belt wheel; a second belt for connecting the two transmission belt wheels in a transmission way is arranged between the two transmission belt wheels, and the lower part of the output shaft is provided with a matching groove for vertically and slidably mounting the upper part of any square shaft.
The general drive assembly comprises a second motor and an auxiliary shaft which are correspondingly arranged on the workbench in a fixed mode and a bearing seat connecting mode respectively; the second motor is connected with an incomplete gear; the incomplete gear is respectively meshed with a left gear, a right gear and a middle gear; the right gear is arranged on the screw rod, the middle gear is arranged on the input shaft, and the left gear is arranged on the auxiliary shaft.
The lead screw and the auxiliary shaft are also provided with direction-changing belt wheels; a rope belt which is connected with the two direction-changing belt wheels in a transmission way and is in an X-shaped cross shape is arranged between the two direction-changing belt wheels.
And the lower part of each conversion frame is provided with an air cylinder, and each air cylinder is connected with a pressing plate. The front part of the workbench is provided with a vertical frame, and the vertical frame is provided with an inductor.
In the present invention, the cross section of each square shaft is square. The square blocks, the drill bit and the inductor are in one-to-one correspondence in the front position and the rear position.
The invention has the beneficial effects that:
the square tube drilling machine is high in automation degree, five steps of descending, drilling, ascending, detecting and transposition can be performed in sequence in a circulating mode through gear tooth alternating type transmission and belt transmission on the basis of clamping the square tubes, accordingly, the drilling processing and detecting of all side faces of batch square tubes can be achieved rapidly and synchronously, and the relative drilling processing efficiency is high.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a top view of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a cross-sectional view B-B of FIG. 2;
FIG. 4 is a top view of the table;
FIG. 5 is an enlarged view of a portion of FIG. 2 at I;
FIG. 6 is a perspective view of a square tube;
fig. 7 is a perspective view of a square tube after drilling.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be described more clearly and more completely with reference to the drawings in the following embodiments, and it is understood that the described embodiments are only a part of the present invention, rather than all of the present invention, and based on the embodiments, other embodiments obtained by those skilled in the art without inventive exercise are within the protection scope of the present invention.
As shown in fig. 1 to 5, the drilling equipment suitable for the four sides of the square pipe comprises a workbench 1, wherein a drilling driving assembly is arranged at the front part of the workbench 1; square blocks 1a are arranged at the rear part of the workbench 1; a U-shaped conversion frame 5 is arranged above each square block 1a, and each conversion frame 5 is connected with a square shaft 6; the square shaft 6 is respectively connected with a lifting control assembly and a rotating control assembly; the lifting control assembly and the rotation control assembly are both connected with a general driving assembly. The size of the square block 1a is matched with the size of the inner side of the square pipe to be processed.
The drilling drive assembly comprises a hydraulic cylinder 25 fixedly mounted on the workbench 1 and a seat plate 2 mounted on the workbench 1 in a front-back sliding mode, a plurality of motors 3 are arranged and mounted on the seat plate 2 along the horizontal direction, and each motor 3 is connected with a drill bit 4. In addition, the table 1 is provided with a bottom groove 1b which is slidably fitted with the seat plate 2.
The lifting control assembly comprises a guide frame 7 and a lead screw 8 which are respectively arranged on the workbench 1 in a fixing mode and a bearing seat connecting mode; the lead screw 8 is provided with a base plate 9 which is vertically matched with the guide frame 7 in a sliding manner through threads, and each square shaft 6 is arranged on the base plate 9 through a bearing.
The rotation control assembly comprises belt dividing wheels 10 correspondingly installed on the upper portion of each square shaft 6, and a first belt 11 for driving and connecting the belt dividing wheels 10 is arranged among all the belt dividing wheels 10.
The rotation control assembly further comprises a hanging bracket 12 fixedly arranged on the workbench 1, and an input shaft 13 and an output shaft 14 are respectively arranged on the hanging bracket 12 through bearings; the input shaft 13 and the output shaft 14 are both connected with a transmission belt wheel 15; a second belt 16 which is used for driving and connecting the two driving belt wheels 15 is arranged between the two driving belt wheels 15, and the lower part of the output shaft 14 is provided with a matching groove 14a which vertically and slidably installs the upper part of any one square shaft 6.
The general drive assembly comprises a second motor 17 and an auxiliary shaft 18 which are correspondingly arranged on the workbench 1 in a fixed mode and a bearing seat connecting mode respectively; the second motor 17 is connected with an incomplete gear 19; the incomplete gear 19 is meshed with a left gear 20, a right gear 21 and a middle gear 22 respectively; the right gear 21 is mounted on the lead screw 8, the middle gear 22 is mounted on the input shaft 13, and the left gear 20 is mounted on the counter shaft 18.
The lead screw 8 and the auxiliary shaft 18 are also provided with a direction-changing belt wheel 23; a rope belt 24 which is in an X-shaped cross shape and is used for driving and connecting the two direction-changing belt wheels 23 is arranged between the two direction-changing belt wheels.
An air cylinder 26 is mounted at the lower part of each conversion frame 5, and a pressing plate 27 is connected with each air cylinder 26. The front part of the worktable 1 is provided with a vertical frame 28, and the vertical frame 28 is provided with an inductor 29.
In the present invention, each square shaft 6 has a square cross section. The square blocks 1a, the drill 4, and the sensors 29 correspond one-to-one in the front and rear positions.
When the square block is used, the square pipe shown in fig. 6 can be directly inserted above the square block 1a in a one-to-one correspondence manner.
The incomplete gear 19 is driven by the second motor 17 to rotate clockwise, so that the incomplete gear 19 is in meshing transmission with the right gear 21, the left gear 20 and the middle gear 22 in sequence, and the following four steps can be executed in sequence:
in the first step, when the incomplete gear 19 is in mesh transmission with the right gear 21, the lead screw 8 rotates counterclockwise, so that the base plate 9, each square shaft 6 and the conversion frame 5 all slide vertically downward, i.e. the upper part of each square pipe is located at the middle position of the lower part of the corresponding conversion frame 5.
In the second step, the incomplete gear 19 idles, and in the process, each air cylinder 26 pushes the pressing plate 27 to the left side, so that the pressing plate 27 is matched with the side wall of the conversion frame 5 to clamp each square pipe. Further, when each motor 3 drives the drill bit 4 to rotate, the hydraulic cylinder 25 pushes the seat plate 2 to the rear side, the front face of each square pipe is drilled, and the hydraulic cylinder 25 pulls the seat plate 2 forward to reset after drilling.
Thirdly, when the incomplete gear 19 is in meshed transmission with the left gear 20, the screw 8 is driven to rotate clockwise through the anisotropic transmission of the rope belt 24, so that the base plate 9, each square shaft 6 and the conversion frame 5 vertically slide upwards, and the square pipes clamped and drilled are driven to move upwards together, so that the positions of holes, which are just drilled, of the square pipes are lifted to correspond to the position of the inductor 29.
And fourthly, idling the incomplete gear 19, detecting whether drilling is just finished by the sensor 29, and if the drilling is not finished, controlling the second motor 17, the first motor 3 and the hydraulic cylinder 25 to be stopped by the PLC so as to be convenient for manual inspection and maintenance.
Fifthly, when the incomplete gear 19 is in meshing transmission with the middle gear 22, all the square shafts 6 and the conversion frame 5 are rotated by 90 degrees through transmission of the second belt 16 and the first belt 11, all the square pipes can be driven to rotate by 90 degrees, and transposition is realized, so that the lower surface of each square pipe can be conveniently drilled after the transposition.
Therefore, by sequentially executing the above five steps, it is possible to efficiently and automatically perform drilling on four surfaces of a large number of square pipes in synchronization, and the processing effect is as shown in fig. 7. In addition, at the beginning of the second cycle step, there is no need to clamp the square tube in the second step.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. Drilling equipment suitable for side's four sides is managed in side, including workstation (1), its characterized in that: the front part of the workbench (1) is provided with a drilling driving component; square blocks (1a) are arranged at the upper rear part of the workbench (1); a U-shaped conversion frame (5) is arranged above each square block (1a), and each conversion frame (5) is connected with a square shaft (6); the square shaft (6) is respectively connected with a lifting control assembly and a rotating control assembly; the lifting control assembly and the rotation control assembly are both connected with a general driving assembly.
2. The square tube four-sided drilling equipment as claimed in claim 1, wherein: the drilling driving assembly comprises a hydraulic cylinder (25) fixedly installed on the workbench (1) and a seat plate (2) installed on the workbench (1) in a front-rear sliding mode, a plurality of motors (3) are arranged and installed on the seat plate (2) in the horizontal direction, and each motor (3) is connected with a drill bit (4).
3. The square tube four-sided drilling equipment as claimed in claim 1, wherein: the lifting control assembly comprises a guide frame (7) and a lead screw (8) which are respectively arranged on the workbench (1) in a fixing mode and a bearing seat connecting mode; the lead screw (8) is provided with a base plate (9) which is vertically matched with the guide frame (7) in a sliding manner in a threaded manner, and each square shaft (6) is arranged on the base plate (9) through a bearing.
4. The square tube four-sided drilling equipment as claimed in claim 3, wherein: the rotary control assembly comprises belt dividing wheels (10) correspondingly mounted on the upper portion of each square shaft (6), and a first belt (11) which is connected with the belt dividing wheels in a transmission mode is arranged between all the belt dividing wheels (10).
5. The square tube four-sided drilling equipment as claimed in claim 4, wherein: the rotary control assembly also comprises a hanging bracket (12) fixedly arranged on the workbench (1), and an input shaft (13) and an output shaft (14) are respectively arranged on the hanging bracket (12) through bearings; the input shaft (13) and the output shaft (14) are both connected with a transmission belt wheel (15); a second belt (16) which is used for driving and connecting the two driving belt wheels (15) is arranged between the two driving belt wheels, and the lower part of the output shaft (14) is provided with a matching groove (14a) which vertically and slidably installs the upper part of any one square shaft (6).
6. The square tube four-sided drilling equipment as claimed in claim 5, wherein: the general drive assembly comprises a second motor (17) and an auxiliary shaft (18) which are correspondingly arranged on the workbench (1) in a fixed mode and a bearing seat connecting mode respectively; the second motor (17) is connected with an incomplete gear (19); the incomplete gear (19) is respectively meshed with a left gear (20), a right gear (21) and a middle gear (22); the right gear (21) is arranged on the screw rod (8), the middle gear (22) is arranged on the input shaft (13), and the left gear (20) is arranged on the auxiliary shaft (18).
7. The square tube four-sided drilling equipment as claimed in claim 6, wherein: a turning belt wheel (23) is also arranged on the screw rod (8) and the auxiliary shaft (18); a rope belt (24) which is in an X-shaped cross shape and is used for connecting the two direction-changing belt wheels (23) in a transmission way is arranged between the two direction-changing belt wheels.
8. The square tube four-sided drilling equipment as claimed in claim 1, wherein: the lower part of each conversion frame (5) is provided with an air cylinder (26), and each air cylinder (26) is connected with a pressing plate (27); the front part of the workbench (1) is provided with a vertical frame (28), and the vertical frame (28) is provided with an inductor (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910833177.2A CN110508845B (en) | 2019-09-04 | 2019-09-04 | Drilling equipment suitable for four sides of square pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910833177.2A CN110508845B (en) | 2019-09-04 | 2019-09-04 | Drilling equipment suitable for four sides of square pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110508845A CN110508845A (en) | 2019-11-29 |
| CN110508845B true CN110508845B (en) | 2020-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910833177.2A Active CN110508845B (en) | 2019-09-04 | 2019-09-04 | Drilling equipment suitable for four sides of square pipe |
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| Country | Link |
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| CN (1) | CN110508845B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111531634B (en) * | 2020-05-07 | 2021-12-03 | 徐州宏业塑料模具有限公司 | Plastic pipe fitting batch drilling method |
| CN113580261B (en) * | 2021-09-29 | 2021-12-14 | 四川英创力电子科技股份有限公司 | Device and method for detecting missed drilling on circuit board with high precision |
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| JPH1190710A (en) * | 1997-09-18 | 1999-04-06 | Sobi Kogei:Kk | Pipe drilling device |
| CN201198039Y (en) * | 2008-05-26 | 2009-02-25 | 庄添财 | Square tube drilling machine |
| CN202106055U (en) * | 2011-04-27 | 2012-01-11 | 季俊南 | Numerical control drilling machine for chemical fiber filter element |
| CN104249173A (en) * | 2014-09-16 | 2014-12-31 | 芜湖市华益阀门制造有限公司 | Support for rotary radial drilling fixture for disc parts |
| CN108237246A (en) * | 2016-12-26 | 2018-07-03 | 天津市金涞精密机械有限公司 | A kind of wind power generating set support drill hole equipment |
| CN208050991U (en) * | 2018-01-15 | 2018-11-06 | 无锡职业技术学院 | A kind of automatically feed mechanical automation drilling equipment |
| CN108838448A (en) * | 2018-07-03 | 2018-11-20 | 芜湖市泰能电热器具有限公司 | A kind of square aluminium tube milling device |
| CN108907279A (en) * | 2018-07-12 | 2018-11-30 | 张程凯 | A kind of multiple rows of drilling equipment of rotary automobile pipe fitting multi-angle |
| CN109877620A (en) * | 2019-01-21 | 2019-06-14 | 浙江工业大学 | A kind of square pipe drilling grip device |
-
2019
- 2019-09-04 CN CN201910833177.2A patent/CN110508845B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1190710A (en) * | 1997-09-18 | 1999-04-06 | Sobi Kogei:Kk | Pipe drilling device |
| CN201198039Y (en) * | 2008-05-26 | 2009-02-25 | 庄添财 | Square tube drilling machine |
| CN202106055U (en) * | 2011-04-27 | 2012-01-11 | 季俊南 | Numerical control drilling machine for chemical fiber filter element |
| CN104249173A (en) * | 2014-09-16 | 2014-12-31 | 芜湖市华益阀门制造有限公司 | Support for rotary radial drilling fixture for disc parts |
| CN108237246A (en) * | 2016-12-26 | 2018-07-03 | 天津市金涞精密机械有限公司 | A kind of wind power generating set support drill hole equipment |
| CN208050991U (en) * | 2018-01-15 | 2018-11-06 | 无锡职业技术学院 | A kind of automatically feed mechanical automation drilling equipment |
| CN108838448A (en) * | 2018-07-03 | 2018-11-20 | 芜湖市泰能电热器具有限公司 | A kind of square aluminium tube milling device |
| CN108907279A (en) * | 2018-07-12 | 2018-11-30 | 张程凯 | A kind of multiple rows of drilling equipment of rotary automobile pipe fitting multi-angle |
| CN109877620A (en) * | 2019-01-21 | 2019-06-14 | 浙江工业大学 | A kind of square pipe drilling grip device |
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| CN110508845A (en) | 2019-11-29 |
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Effective date of registration: 20231228 Address after: 311507 No. 269, Sanlian East Road, Jiangnan Town, Tonglu County, Hangzhou City, Zhejiang Province Patentee after: HANGZHOU ETONE PLASTIC INDUSTRY CO.,LTD. Address before: 241000, No. 119, Yong'an Road, Jiujiang Economic Development Zone, Wuhu City, Anhui Province Patentee before: WUHU HENGHAO MACHINERY MANUFACTURING Co.,Ltd. |
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