CN106077741A - A kind of multi-functional full-automatic relief valve processing rig - Google Patents
A kind of multi-functional full-automatic relief valve processing rig Download PDFInfo
- Publication number
- CN106077741A CN106077741A CN201610497039.8A CN201610497039A CN106077741A CN 106077741 A CN106077741 A CN 106077741A CN 201610497039 A CN201610497039 A CN 201610497039A CN 106077741 A CN106077741 A CN 106077741A
- Authority
- CN
- China
- Prior art keywords
- drive mechanism
- installing plate
- adjustable shelf
- rotation dish
- relief valve
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B39/00—General-purpose boring or drilling machines or devices; Sets of boring and/or drilling machines
- B23B39/16—Drilling machines with a plurality of working-spindles; Drilling automatons
- B23B39/161—Drilling machines with a plurality of working-spindles; Drilling automatons with parallel work spindles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B47/00—Constructional features of components specially designed for boring or drilling machines; Accessories therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The present invention proposes a kind of multi-functional full-automatic relief valve processing rig, including the first installing plate, the second installing plate, grip unit, units, power unit, grip unit includes multiple rotation dish, and each rotation dish is respectively equipped with multiple the first clamp assemblies for clamping workpiece to be processed；Units includes adjustable shelf, the first drive mechanism, multiple second drive mechanism, multiple drilling rod, and the first drive mechanism is arranged on the second installing plate, and the first drive mechanism is connected with adjustable shelf and drives adjustable shelf to move at vertical direction；Along the length direction of adjustable shelf, multiple second drive mechanisms are disposed side by side on adjustable shelf, and the quantity of the second drive mechanism is consistent with the quantity of drilling rod and second drive mechanism connects a drilling rod, and power unit is connected with each rotating shaft respectively and drives each axis of rotation.The present invention is by grip unit, units, the cooperating of power unit, it is achieved many drill bits synchronous processing, it is possible to be simultaneously processed multiple safe spools.
Description
Technical field
The present invention relates to mining equipment technical field, particularly relate to a kind of multi-functional full-automatic relief valve processing boring and set
Standby.
Background technology
Relief valve is a kind of safeguard protection valve, and its opening and closing element is in normally off by under External Force Acting, when equipment or
Pressure medium in pipeline raises, and automatically turns on, prevent pipeline by discharge medium outside system or set when exceeding setting
Standby interior pressure medium exceedes specified value.Relief valve belongs to automatic valve class, is mainly used on boiler, pressure vessels and pipes, control
Pressing pressure is less than setting, and personal safety and equipment have been run important protective effect.The relief valve course of processing needs
Holing spool, prior art is usually taken single drill bit form processing, to be processed material less for needs drilling hole amount
For material less problematic, hole ground auger one by one, time and efficiency will not be greatly affected.But for needs complete tens of very
To the situation of up to a hundred borings, will be significantly increased process time, working (machining) efficiency also can reduce accordingly.
Summary of the invention
Based on technical problem present in background technology, the present invention proposes the processing of a kind of multi-functional full-automatic relief valve and uses
Rig.
The present invention propose one multi-functional full-automatic relief valve processing rig, including the first installing plate, second
Installing plate, grip unit, units, power unit, wherein:
First installing plate is horizontally disposed, and the first installing plate two ends are the most vertically provided with side frame positioned opposite, and second installs
Plate is positioned at above the first installing plate and parallel and the first installing plate, and the second installing plate two ends are connected with side frame respectively；
Grip unit includes multiple rotation dish, and along the length direction of the first installing plate, multiple rotation dishes are arranged in parallel at
Be rotationally connected with the first installing plate on one installing plate and respectively by rotating shaft, each rotation dish is respectively equipped with multiple for clamping treat
First clamp assemblies of processing workpiece；
Units includes adjustable shelf, the first drive mechanism, multiple second drive mechanism, multiple drilling rod, and adjustable shelf is positioned at
Between first installing plate and the second installing plate and be parallel to the first installing plate, the length direction of adjustable shelf and the length of the first installing plate
Degree direction is consistent, and the first drive mechanism is arranged on the second installing plate, and the first drive mechanism is connected with adjustable shelf and driving activity
Frame moves at vertical direction；Along the length direction of adjustable shelf, multiple second drive mechanisms are disposed side by side on adjustable shelf, and second drives
The quantity of motivation structure is consistent with the quantity of drilling rod and second drive mechanism connects a drilling rod, the quantity of drilling rod and rotation dish
Quantity is consistent and a corresponding rotation dish of drilling rod, and the drill bit of each drilling rod is all towards rotation dish；
Power unit is connected with each rotating shaft respectively and drives each axis of rotation.
Preferably, power unit includes the 3rd drive mechanism, the first gear, multiple second gear, the 3rd drive mechanism with
First gear connects and drives the first pinion rotation, the quantity of the second gear is consistent with the quantity of rotating shaft and rotating shaft with one
Second gear is fixing to be connected, and multiple second gears are distributed in the same side of the first gear and each second gear all depends on the first gear
Secondary engagement.
Preferably, the quantity of the first clamp assemblies at least three and multiple first clamp assemblies are distributed in rotate dish
On the first circumference centered by center.
Preferably, the first clamp assemblies includes the first grip block being movably mounted on rotation dish, the first grip block
Moving direction is the radial direction of rotation dish.
Preferably, grip unit also includes column, sliding sleeve, the 4th drive mechanism, multiple connecting rod, and column is vertically installed at and turns
On Moving plate and the axial line conllinear of axial line and rotation dish of column, multiple first grip blocks circumferentially divide centered by column
Cloth, sliding sleeve is slidably mounted on column, and the 4th drive mechanism is connected with sliding sleeve and drives to slide over and carries out vertical direction on column
Move up and down, the quantity of connecting rod is consistent with the quantity of the first grip block, and each connecting rod one end is hinged with sliding sleeve respectively, and each connecting rod is another
One end is connected with the first grip block respectively.
Preferably, grip unit also includes multiple the second clamp assemblies for clamping workpiece to be processed, multiple second folders
Hold on the components distribution the second circumference centered by the center by rotation dish.
Preferably, the second clamp assemblies includes support bar, the 5th drive mechanism, the second grip block, and support bar is vertically-mounted
On rotation dish, the 5th drive mechanism is arranged on support bar, and the 5th drive mechanism is connected with the second grip block and drives second
Grip block moves radially along rotation dish.
Preferably, adjustable shelf is provided with quantity and the second driving machine near the first installing plate side the most side by side
The lead that structure quantity is consistent, lead is all along adjustable shelf width layout, and each second drive mechanism is pacified by slide block respectively
It is contained on lead and can move along with slide block movement on lead.
Preferably, units also includes the 6th drive mechanism that quantity is consistent with the second drive mechanism quantity, and the 6th drives
Motivation structure is arranged on adjustable shelf, and the 6th drive mechanism connects a slide block and drives slide block along movable on lead
Frame width moves.
In the present invention, by rotating on the first installing plate, multiple rotation dishes are installed, for placing relief valve to be processed
Core, and safe spool being fixed by multiple first clamp assemblies, be equipped with above each rotation dish one corresponding
Drilling rod, drilling rod is driven by the second drive mechanism and rotates；During work, each safe spool to be processed is placed on rotation dish and leads to
Crossing the first clamp assemblies to be fixed, the first drive mechanism drives adjustable shelf to move down, and drives each drilling rod to move down, the second drive mechanism
Driving each drilling rod to rotate respectively so that each drill bit completes the Drilling operation to safe spool, after processing a hole, first drives
Motivation structure drives and moves on adjustable shelf, and power unit drives each axis of rotation certain angle simultaneously, drives the certain angle of turn disc
Degree so that drilling rod is directed at the next processing stations of safe spool, the first drive mechanism drives adjustable shelf to move down, and drives multiple brill
Bar moves down, and the second drive mechanism drives each drilling rod to rotate respectively so that each drill bit completes the Drilling operation to safe spool, so
Repeat above-mentioned action, until safe spool each station borehole completion of processing.The present invention passes through grip unit, units, power
Cooperating of unit, it is achieved many drill bits synchronize Drilling operation, it is possible to multiple safe spools are carried out Drilling operation simultaneously, work
Efficiency is high, and machining accuracy is high, by the clamping of clamp assemblies, it is possible to ensure the planarization of boring sites in curing, it is possible to different size
Safe spool carry out Drilling operation.
Accompanying drawing explanation
Fig. 1 is the one multi-functional full-automatic relief valve processing rig structural representation that the present invention proposes；
Fig. 2 is structure for amplifying schematic diagram at A in Fig. 1.
Detailed description of the invention
With reference to Fig. 1, Fig. 2, the present invention proposes a kind of multi-functional full-automatic relief valve processing rig, including the first peace
Dress plate the 1, second installing plate 2, grip unit, units, power unit, wherein:
First installing plate 1 is horizontally disposed, and the first installing plate 1 two ends are the most vertically provided with side frame 3 positioned opposite, the second peace
Dress plate 2 is positioned at above the first installing plate 1 and parallel and the first installing plate 1, and the second installing plate 2 two ends are connected with side frame 3 respectively.
Grip unit includes multiple rotation dish 4, and along the length direction of the first installing plate 1, multiple rotation dishes 4 are arranged in parallel at
Be rotationally connected with the first installing plate 1 by rotating shaft 5 on first installing plate 1 and respectively, each rotation dish 4 is respectively equipped with multiple for
Clamping the first clamp assemblies of workpiece to be processed, the second clamp assemblies.The quantity of the first clamp assemblies is at least three and multiple
First clamp assemblies is distributed on the first circumference centered by the center to rotate dish 4, multiple second clamp assemblies be distributed in
On the second circumference centered by the center of rotation dish 4.
Units includes adjustable shelf the 6, first drive mechanism 7, multiple second drive mechanism 8, multiple drilling rod 9, adjustable shelf 6
Between the first installing plate 1 and the second installing plate 2 and be parallel to the first installing plate 1, the length direction of adjustable shelf 6 and the first peace
The length direction of dress plate 1 is consistent, and the first drive mechanism 7 is arranged on the second installing plate 2, and the first drive mechanism 7 is with adjustable shelf 6 even
Connect and drive adjustable shelf 6 to move at vertical direction；Along the length direction of adjustable shelf 6, multiple second drive mechanisms 8 are disposed side by side on
On adjustable shelf 6, the quantity of the second drive mechanism 8 is consistent with the quantity of drilling rod 9 and second drive mechanism 8 connects a drilling rod
9, the quantity of drilling rod 9 is consistent with the quantity of rotation dish 4 and a corresponding rotation dish 4 of drilling rod 9, and the drill bit 10 of each drilling rod 9
All towards rotation dish 4.
Power unit is connected with each rotating shaft 5 respectively and drives each rotating shaft 5 to rotate.Power unit includes the 3rd drive mechanism
11, the first gear 12, multiple second gear 13, the 3rd drive mechanism 11 is connected with the first gear 12 and drives the first gear 12 turns
Dynamic, the quantity of the second gear 13 is consistent with the quantity of rotating shaft 5 and a rotating shaft 5 is fixed with second gear 13 and is connected, multiple
Second gear 13 is distributed in the same side of the first gear 12 and each second gear 13 all engages successively with the first gear 12.
In the present embodiment, the first clamp assemblies includes the first grip block 14 being movably mounted on rotation dish 4, the first folder
Hold plate 14 shape suitable with relief valve in-core wall, the radial direction that moving direction is rotation dish 4 of the first grip block 14.Grip unit
Also including column 15, sliding sleeve the 16, the 4th drive mechanism 17, multiple connecting rod 18, column 15 is vertically installed on rotation dish 4 and column
The axial line of 15 and the axial line conllinear of rotation dish 4, multiple first grip blocks 14 are circumferentially distributed centered by column 15, sliding sleeve
16 are slidably mounted on column 15, and the 4th drive mechanism 17 is connected with sliding sleeve 16 and drives sliding sleeve 16 to carry out on column 15 vertically
Moving up and down of direction, the quantity of connecting rod 18 is consistent with the quantity of the first grip block 14, each connecting rod 18 one end respectively with sliding sleeve 16
Hinged, each connecting rod 18 other end is connected with the first grip block 14 respectively.
In the present embodiment, the second clamp assemblies includes support bar the 19, the 5th drive mechanism the 20, second grip block 21, supports
Bar 19 is vertically installed on rotation dish 4, and the 5th drive mechanism 20 is arranged on support bar 19, the 5th drive mechanism 20 and the second folder
Hold plate 21 connect and drive the second grip block 21 to move radially along rotation dish 4, the second grip block 21 shape and relief valve outer core
Suitable.
In the present embodiment, adjustable shelf 6 is provided with quantity and second the most side by side near the first installing plate 1 side
The lead 22 that drive mechanism 8 quantity is consistent, lead 22 is all along adjustable shelf 6 width layout, each second drive mechanism 8 points
It is not arranged on lead 22 by slide block 23 and can move along with the slide block 23 movement on lead 22.Units is also
Including the 6th drive mechanism that quantity is consistent with the second drive mechanism 8 quantity, the 6th drive mechanism is arranged on adjustable shelf 6, and
One the 6th drive mechanism connects a slide block 23 and drives slide block 23 to move along adjustable shelf 6 width on lead 22.
The size of the relief valve according to reality processing, the position of regulation drilling rod 9, meet the process requirements of various sizes of relief valve.
The one multi-functional full-automatic relief valve processing rig that the present invention proposes, by the first installing plate 1
Rotate and multiple rotation dishes 4 are installed, for placing safe spool to be processed, and by multiple first clamp assemblies to safe spool
Being fixed, be equipped with a corresponding drilling rod 9 above each rotation dish 4, drilling rod 9 is driven rotation by the second drive mechanism 8；
During work, each safe spool to be processed is placed on rotation dish, and drives each first grip block 14 to fit safe spool
Inwall, driving each second grip block 21 to fit relief valve outer core, be fixed safe spool, the first drive mechanism 7 drives
Adjustable shelf 6 moves down, and drives each drilling rod 9 to move down, and the second drive mechanism 8 drives each drilling rod 9 to rotate respectively so that each drill bit 10 completes
Drilling operation to safe spool, after processing a hole, the first drive mechanism 7 drives and moves on adjustable shelf 6, the 3rd drives simultaneously
Motivation structure 11 drives the first gear 12 to turn an angle, and drives each second gear 13 to turn an angle, thus drives each turn
Axle 5 turns an angle so that each rotation dish 4 turns an angle so that drilling rod 9 is directed at the next processing work of safe spool
Position, the first drive mechanism 7 drives adjustable shelf 6 to move down, and drives multiple drilling rod 9 to move down, and the second drive mechanism 8 drives each drilling rod respectively
9 rotate so that each drill bit 10 completes the Drilling operation to safe spool, so repeats above-mentioned action, until each work of safe spool
Position Drilling operation is complete.The present invention is by grip unit, units, the cooperating of power unit, it is achieved many drill bits 10 with
Step Drilling operation, it is possible to multiple safe spools carry out Drilling operation simultaneously, work efficiency is high, and machining accuracy is high, by first
Clamp assemblies, the clamping of the second clamp assemblies, it is possible to ensure the planarization of boring sites in curing, it is possible to various sizes of safe spool
Carry out Drilling operation.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto,
Any those familiar with the art in the technical scope that the invention discloses, according to technical scheme and
Inventive concept equivalent or change in addition, all should contain within protection scope of the present invention.
Claims (9)
1. a multi-functional full-automatic relief valve processing rig, it is characterised in that include the first installing plate (1), second
Installing plate (2), grip unit, units, power unit, wherein:
First installing plate (1) is horizontally disposed, and the first installing plate (1) two ends are the most vertically provided with side frame (3) positioned opposite, and second
Installing plate (2) is positioned at the first installing plate (1) top parallel with the first installing plate (1), the second installing plate (2) two ends respectively with side
Frame (3) connects；
Grip unit includes multiple rotation dish (4), and along the length direction of the first installing plate (1), multiple rotation dishes (4) are arranged in juxtaposition
Above and respectively by rotating shaft (5) it is rotationally connected with the first installing plate (1) at the first installing plate (1), each rotation dish (4) sets respectively
There is multiple the first clamp assemblies for clamping workpiece to be processed；
Units includes adjustable shelf (6), the first drive mechanism (7), multiple second drive mechanism (8), multiple drilling rod (9), lives
Moving frame (6) is positioned between the first installing plate (1) and the second installing plate (2) and is parallel to the first installing plate (1), adjustable shelf (6)
The length direction of length direction and the first installing plate (1) is consistent, and the first drive mechanism (7) is arranged on the second installing plate (2), the
One drive mechanism (7) is connected with adjustable shelf (6) and drives adjustable shelf (6) to move at vertical direction；Length side along adjustable shelf (6)
To, multiple second drive mechanisms (8) are disposed side by side on adjustable shelf (6), the quantity of the second drive mechanism (8) and drilling rod (9)
Quantity is consistent and second drive mechanism (8) connects a drilling rod (9), the quantity one of the quantity of drilling rod (9) and rotation dish (4)
Cause and a corresponding rotation dish (4) of drilling rod (9), and the drill bit (10) of each drilling rod (9) is all towards rotation dish (4)；
Power unit is connected with each rotating shaft (5) respectively and drives each rotating shaft (5) to rotate.
Multi-functional full-automatic relief valve processing rig the most according to claim 1, it is characterised in that power unit
Including the 3rd drive mechanism (11), the first gear (12), multiple second gear (13), the 3rd drive mechanism (11) and the first gear
(12) connect and drive the first gear (12) to rotate, the quantity of the second gear (13) consistent with the quantity of rotating shaft (5) and one turn
Axle (5) and second gear (13) are fixing to be connected, multiple second gears (13) be distributed in the first gear (12) the same side and
Each second gear (13) is all engaged successively with the first gear (12).
Multi-functional full-automatic relief valve processing rig the most according to claim 1, it is characterised in that the first clamping
The quantity of assembly at least three and multiple first clamp assemblies are distributed in the first circumference centered by the center to rotate dish (4)
On.
4., according to the multi-functional full-automatic relief valve processing rig according to any one of claim 1-3, its feature exists
In, the first clamp assemblies includes the first grip block (14) being movably mounted on rotation dish (4), the shifting of the first grip block (14)
Dynamic direction is the radial direction of rotation dish (4).
Multi-functional full-automatic relief valve processing rig the most according to claim 4, it is characterised in that grip unit
Also including column (15), sliding sleeve (16), the 4th drive mechanism (17), multiple connecting rod (18), column (15) is vertically installed at rotation
Dish (4) is upper and the axial line conllinear of the axial line of column (15) and rotation dish (4), and multiple first grip blocks (14) are with column (15)
Centered by be circumferentially distributed, sliding sleeve (16) is slidably mounted on column (15), and the 4th drive mechanism (17) is connected with sliding sleeve (16)
And drive sliding sleeve (16) to carry out moving up and down of vertical direction, the quantity of connecting rod (18) and the first grip block on column (15)
(14) quantity is consistent, and each connecting rod (18) one end is hinged with sliding sleeve (16) respectively, and each connecting rod (18) other end presss from both sides with first respectively
Hold plate (14) to connect.
6., according to the multi-functional full-automatic relief valve processing rig according to any one of claim 1-3, its feature exists
In, grip unit also includes multiple the second clamp assemblies for clamping workpiece to be processed, and multiple second clamp assemblies are distributed in
On the second circumference centered by the center of rotation dish (4).
Multi-functional full-automatic relief valve processing rig the most according to claim 6, it is characterised in that the second clamping
Assembly includes support bar (19), the 5th drive mechanism (20), the second grip block (21), and support bar (19) is vertically installed at rotation dish
(4) on, the 5th drive mechanism (20) is arranged on support bar (19), and the 5th drive mechanism (20) is connected with the second grip block (21)
And drive the second grip block (21) to move radially along rotation dish (4).
8., according to the multi-functional full-automatic relief valve processing rig according to any one of claim 1-3, its feature exists
In, adjustable shelf (6) is upper is provided with quantity and the second drive mechanism (8) the most side by side near the first installing plate (1) side
The lead (22) that quantity is consistent, lead (22) is all along adjustable shelf (6) width layout, each second drive mechanism (8) point
It is not arranged on lead (22) by slide block (23) above and to move along with the slide block (23) movement on lead (22).
Multi-functional full-automatic relief valve processing rig the most according to claim 8, it is characterised in that units
Also including the 6th drive mechanism that quantity is consistent with the second drive mechanism (8) quantity, the 6th drive mechanism is arranged on adjustable shelf (6)
On, and the 6th drive mechanism connects a slide block (23) drive slide block (23) along adjustable shelf (6) on lead (22)
Width moves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610497039.8A CN106077741A (en) | 2016-06-30 | 2016-06-30 | A kind of multi-functional full-automatic relief valve processing rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610497039.8A CN106077741A (en) | 2016-06-30 | 2016-06-30 | A kind of multi-functional full-automatic relief valve processing rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106077741A true CN106077741A (en) | 2016-11-09 |
Family
ID=57214891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610497039.8A Pending CN106077741A (en) | 2016-06-30 | 2016-06-30 | A kind of multi-functional full-automatic relief valve processing rig |
Country Status (1)
| Country | Link |
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| CN (1) | CN106077741A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106825667A (en) * | 2016-12-09 | 2017-06-13 | 天长市优信电器设备有限公司 | A kind of many drill bit charger shell process equipments |
| CN106975769A (en) * | 2017-05-10 | 2017-07-25 | 青岛百吉特数控机床有限公司 | A kind of numerical control hinge hole processor |
| CN106994520A (en) * | 2017-06-05 | 2017-08-01 | 郁海金 | A kind of rapid drilling equipment for handware |
| CN107262765A (en) * | 2017-08-09 | 2017-10-20 | 华东矿用设备有限公司 | A kind of production line processed for valve upper flange |
| CN108480683A (en) * | 2018-04-10 | 2018-09-04 | 重庆市耀植机械有限责任公司 | A kind of drilling equipment |
| CN110899767A (en) * | 2019-12-11 | 2020-03-24 | 东阳鸿松机械科技有限公司 | Motor end cover through hole boring equipment |
| CN113478267A (en) * | 2021-09-07 | 2021-10-08 | 江苏博润图制造有限公司 | Positioning fixture for machining shell cover of compressor shell |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106825667A (en) * | 2016-12-09 | 2017-06-13 | 天长市优信电器设备有限公司 | A kind of many drill bit charger shell process equipments |
| CN106975769A (en) * | 2017-05-10 | 2017-07-25 | 青岛百吉特数控机床有限公司 | A kind of numerical control hinge hole processor |
| CN106994520A (en) * | 2017-06-05 | 2017-08-01 | 郁海金 | A kind of rapid drilling equipment for handware |
| CN106994520B (en) * | 2017-06-05 | 2019-10-29 | 江苏合泓通讯技术有限公司 | A kind of rapid drilling equipment for handware |
| CN107262765A (en) * | 2017-08-09 | 2017-10-20 | 华东矿用设备有限公司 | A kind of production line processed for valve upper flange |
| CN108480683A (en) * | 2018-04-10 | 2018-09-04 | 重庆市耀植机械有限责任公司 | A kind of drilling equipment |
| CN110899767A (en) * | 2019-12-11 | 2020-03-24 | 东阳鸿松机械科技有限公司 | Motor end cover through hole boring equipment |
| CN110899767B (en) * | 2019-12-11 | 2020-10-16 | 平阳县浙瑞电机有限公司 | Motor end cover through hole boring equipment |
| CN113478267A (en) * | 2021-09-07 | 2021-10-08 | 江苏博润图制造有限公司 | Positioning fixture for machining shell cover of compressor shell |
| CN113478267B (en) * | 2021-09-07 | 2021-12-10 | 江苏博润图制造有限公司 | Positioning fixture for machining shell cover of compressor shell |
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