CN110695407A - Cylinder hole machining tool and machining method for automobile engine cylinder block - Google Patents
Cylinder hole machining tool and machining method for automobile engine cylinder block Download PDFInfo
- Publication number
- CN110695407A CN110695407A CN201911079889.6A CN201911079889A CN110695407A CN 110695407 A CN110695407 A CN 110695407A CN 201911079889 A CN201911079889 A CN 201911079889A CN 110695407 A CN110695407 A CN 110695407A
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- China
- Prior art keywords
- engine cylinder
- electromagnetic slide
- cylinder body
- plate
- cylinder
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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
- B23B—TURNING; BORING
- B23B47/00—Constructional features of components specially designed for boring or drilling machines; Accessories 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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/04—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part adjustable in inclination
-
- 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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
-
- 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
- B23Q7/02—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 by means of drums or rotating tables or discs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention discloses a cylinder hole machining tool of an automobile engine cylinder body and a machining method thereof, wherein the cylinder hole machining tool comprises a workbench, wherein first guide rails are arranged at the front end and the rear end above the workbench respectively, a sliding plate is movably arranged on the first guide rails, first electromagnetic slide rails are arranged on two sides above the sliding plate respectively, an installation plate is arranged on the first electromagnetic slide rails through electromagnetic slide blocks, and a servo motor is arranged at the top of the installation plate; the engine cylinder body is fixed in the placing groove on the supporting plate by the fastening assembly, the sliding plate can be pushed to move along the first guide rail by the rotation of the first threaded screw rod, and the mounting plate can be pushed to move by the first electromagnetic sliding rail and the electromagnetic sliding block, so that the positions of the supporting plate and the engine cylinder body on the supporting plate can be adjusted, the cylinder hole processing is facilitated, meanwhile, the pneumatic cylinder can be pushed to incline by the electric telescopic rod, the pneumatic cylinder can be pushed to incline to push the boring machine to process the inclined surface of the engine cylinder body, the function is diversified, and the cost is saved.
Description
Technical Field
The invention relates to the technical field of engine processing equipment, in particular to a cylinder hole processing tool of an automobile engine cylinder body and a processing method thereof.
Background
The automobile engine is a device for providing power for an automobile, is the heart of the automobile, determines the dynamic property, the economical efficiency, the stability and the environmental protection property of the automobile, and can be divided into a diesel engine, a gasoline engine, an electric automobile motor, hybrid power and the like according to different power sources, and a cylinder body is a main part of the automobile engine;
in the production of cylinder blocks, cylinder holes need to be machined in the cylinder blocks, in the prior art, the cylinder blocks are usually fixed at one position and then are machined through fixed boring machines, the position of the cylinder blocks is inconvenient to adjust, the boring machines cannot be finely adjusted in the machining of the cylinder holes, the edges of the machined cylinder holes are rough and not smooth enough, in addition, in the prior art, different machining equipment is needed for machining the cylinder holes in the inclined surfaces of the cylinder blocks, the machining is troublesome, and the cost is high.
Disclosure of Invention
In order to solve the problems, the invention provides a cylinder hole machining tool for an automobile engine cylinder body and a machining method thereof.
In order to solve the problems, the invention provides a cylinder hole machining tool of an automobile engine cylinder body and a machining method thereof, and the tool comprises a workbench, wherein a first guide rail is arranged at the front end and the rear end above the workbench, a sliding plate is movably arranged on the first guide rail, first electromagnetic slide rails are arranged on two sides above the sliding plate, a mounting plate is arranged on the first electromagnetic slide rails through electromagnetic sliders, a servo motor is arranged at the top of the mounting plate, a supporting plate is arranged at the output end of the servo motor, a placing groove is arranged on the supporting plate, a plurality of groups of fastening assemblies are equidistantly arranged on the inner wall of the placing groove, a working frame is arranged at the front end and the rear end above the workbench, a second electromagnetic slide rail is arranged on the working frame, a movable connecting seat is arranged on the second electromagnetic slide rails through the electromagnetic sliders, a second guide rail is arranged on the movable connecting seat, and a slide, and one side of the sliding seat is provided with a boring assembly.
The further improvement lies in that: the boring assembly comprises a fixed plate and a hinge rod, the hinge rod is rotatably mounted above one side of the fixed plate, a pneumatic cylinder is arranged at one end of the hinge rod, an electric telescopic rod is hinged below one side of the fixed plate, one end of the electric telescopic rod is hinged to one side of the pneumatic cylinder, and a boring machine is arranged at the output end of the pneumatic cylinder.
The further improvement lies in that: the middle position of the top of the workbench is provided with a first threaded screw rod in a rotating mode through a bearing seat, one end of the first threaded screw rod is provided with a stepping motor, the stepping motor drives the first threaded screw rod to rotate, and the middle position of the bottom of the sliding plate is provided with a nut block matched with the first threaded screw rod.
The further improvement lies in that: and a second threaded screw rod is rotatably installed at the middle position above the movable connecting seat through a bearing seat, the second threaded screw rod is driven to rotate through a motor, and the second threaded screw rod penetrates through the sliding seat in a threaded manner.
The further improvement lies in that: the top edge of mounting panel is equipped with the ring rail, the edge of layer board bottom is in through slider activity support on the ring rail.
The further improvement lies in that: the fastening assembly comprises a gasket and a knob bolt, the knob bolt penetrates through the upper thread of the gasket, and a clamping piece is arranged at the inner end of the knob bolt.
A cylinder hole machining method for an automobile engine cylinder block comprises the following steps:
the method comprises the following steps: placing an engine cylinder body to be processed into a placing groove on a supporting plate, rotating a knob bolt to push a clamping piece, and fixing the engine cylinder body from the periphery;
step two: starting a stepping motor to drive a first threaded screw rod to rotate, pushing a sliding plate to move along a first guide rail, starting a first electromagnetic slide rail, pushing a mounting plate to move through an electromagnetic slide block, moving a supporting plate and an engine cylinder body on the supporting plate to the position below a boring assembly, and aligning the specified position to a boring machine;
step three: starting the boring machine, utilizing a pneumatic cylinder to push the boring machine to contact the engine cylinder body for boring, wherein in the process, a motor is started to drive a second threaded screw rod to rotate, so that the sliding seat moves along a second guide rail for fine adjustment, and meanwhile, a second electromagnetic slide rail is started, so that the movable connecting seat moves along the second electromagnetic slide rail for fine adjustment, and therefore, the boring machine is fine adjusted front and back, left and right, and a cylinder hole is machined smoothly;
step four: after the cylinder hole at the position is machined, repeating the step two, changing the position of the engine cylinder body, machining the cylinder hole at other positions again, and meanwhile, starting the servo motor to drive the tray to rotate according to needs so that the engine cylinder body rotates to adjust the direction for machining;
step five: when the cylinder hole is required to be machined on the inclined surface, the electric telescopic rod is started to push the pneumatic cylinder to enable the pneumatic cylinder to incline, and the pneumatic cylinder inclines to push the boring machine to machine the inclined surface of the engine cylinder body;
step six: after the processing is finished, the knob bolt is rotated, the clamping piece is loosened, and the engine cylinder body is taken down.
The invention has the beneficial effects that: the engine cylinder body is fixed in the placing groove on the supporting plate by the fastening assembly, the sliding plate can be pushed to move along the first guide rail by the rotation of the first threaded screw rod, the mounting plate can be pushed to move by the first electromagnetic slide rail and the electromagnetic slide block, so that the position of the supporting plate and the engine cylinder body on the supporting plate can be adjusted, the cylinder hole processing is facilitated, the boring machine is pushed by the pneumatic cylinder to carry out boring processing, in the process, the slide seat is enabled to move along the second guide rail to carry out fine adjustment by the rotation of the second threaded screw rod, the movable connecting seat is enabled to move along the second electromagnetic slide rail to carry out fine adjustment by the second electromagnetic slide rail, so that the boring machine is enabled to carry out fine adjustment front, back, left and right, the processing is smooth, the processing quality is improved, meanwhile, the pneumatic cylinder hole can be pushed to incline, the function is diversified, saves the cost.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a schematic view of the construction of the inventive work frame;
FIG. 3 is a schematic view of the structure of the working platform of the present invention;
FIG. 4 is a schematic view of the circular guide of the present invention;
fig. 5 is a schematic view of a fastening assembly of the present invention.
Wherein: 1. a work table; 2. a first guide rail; 3. a slide plate; 4. a first electromagnetic slide rail; 5. mounting a plate; 6. a servo motor; 7. a support plate; 8. a fastening assembly; 9. a working frame; 10. a second electromagnetic slide rail; 11. moving the connecting seat; 12. a second guide rail; 13. a slide base; 14. a fixing plate; 15. a hinged lever; 16. a pneumatic cylinder; 17. an electric telescopic rod; 18. a boring machine; 19. a first threaded lead screw; 20. a stepping motor; 21. a second threaded screw; 22. an annular guide rail; 23. a gasket; 24. a knob bolt; 25. a clip.
Detailed Description
In order to further understand the present invention, the following detailed description will be made with reference to the following examples, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.
According to fig. 1, 2, 3, 4 and 5, the embodiment provides a cylinder hole processing tool of an automobile engine cylinder and a processing method thereof, the tool comprises a workbench 1, wherein a first guide rail 2 is arranged at the front end and the rear end above the workbench 1, a sliding plate 3 is movably arranged on the first guide rail 2, first electromagnetic slide rails 4 are arranged at two sides above the sliding plate 3, a mounting plate 5 is arranged on the first electromagnetic slide rails 4 through electromagnetic sliders, a servo motor 6 is arranged at the top of the mounting plate 5, the type of the servo motor 6 is Y90S-2, a supporting plate 7 is arranged at the output end of the servo motor 6, a placing groove is arranged on the supporting plate 7, a plurality of groups of fastening assemblies 8 are equidistantly arranged on the inner wall of the placing groove, a working frame 9 is arranged at the front end and the rear end above the workbench 1, a second electromagnetic slide rail 10 is arranged on the working frame 9, a movable connecting seat 11 is arranged on the second electromagnetic slide rail 10 through electromagnetic sliders, and a second guide rail 12 is arranged on the movable connecting seat 11, a sliding seat 13 is movably arranged on the second guide rail 12, and a boring assembly is arranged on one side of the sliding seat 13.
The boring assembly comprises a fixing plate 14 and an articulated rod 15, the articulated rod 15 is rotatably mounted above one side of the fixing plate 14, a pneumatic cylinder 16 is arranged at one end of the articulated rod 15, an electric telescopic rod 17 is hinged below one side of the fixing plate 14, one end of the electric telescopic rod 17 is hinged to one side of the pneumatic cylinder 16, and a boring machine 18 is arranged at the output end of the pneumatic cylinder 16.
The middle position department at 1 top of workstation rotates through the bearing frame and installs first screw lead screw 19, and the one end of first screw lead screw 19 is equipped with step motor 20, and step motor 20's model is YNT-01, step motor 20 drive first screw lead screw 19 is rotatory, the middle position department of slide 3 bottom is equipped with the nut piece with first screw lead screw 19 looks adaptation.
A second threaded screw rod 21 is rotatably installed at the middle position above the movable connecting seat 11 through a bearing seat, the second threaded screw rod 21 is driven to rotate through a motor, and the second threaded screw rod 21 penetrates through the sliding seat 13 in a threaded mode.
The top edge of mounting panel 5 is equipped with ring rail 22, the edge of layer board 7 bottom is in through slider activity support on ring rail 22.
The fastening assembly 8 comprises a gasket 23 and a knob bolt 24, the knob bolt 24 penetrates through the gasket 23 in a threaded manner, and a clamping piece 25 is arranged at the inner end of the knob bolt 24.
A cylinder hole machining method for an automobile engine cylinder block comprises the following steps:
the method comprises the following steps: placing an engine cylinder body to be processed into a placing groove on a supporting plate 7, rotating a knob bolt 24 to push a clamping piece 25, and fixing the engine cylinder body from the periphery;
step two: starting a stepping motor 20 to drive a first threaded screw rod 19 to rotate, pushing a sliding plate 3 to move along a first guide rail 2, starting a first electromagnetic slide rail 4, pushing a mounting plate 5 to move through an electromagnetic slide block, so that a supporting plate 7 and an upper engine cylinder body thereof are moved to the lower part of a boring assembly, and aligning a specified position to a boring machine 18;
step three: starting the boring machine 18, pushing by using the pneumatic cylinder 16, enabling the boring machine 18 to contact with an engine cylinder body for boring, in the process, starting a motor to drive the second threaded screw rod 21 to rotate, enabling the sliding seat 13 to move along the second guide rail 12 for fine adjustment, and simultaneously starting the second electromagnetic slide rail 10, enabling the movable connecting seat 11 to move along the second electromagnetic slide rail 10 for fine adjustment, so that the boring machine 18 is finely adjusted front and back, left and right, and a cylinder hole is machined smoothly;
step four: after the cylinder hole at the position is machined, repeating the step two, changing the position of the engine cylinder body, machining the cylinder hole at other positions again, and meanwhile, starting the servo motor 6 to drive the tray 7 to rotate according to needs so that the engine cylinder body rotates to adjust the direction for machining;
step five: when the cylinder hole is required to be machined on the inclined surface, the electric telescopic rod 17 is started to push the pneumatic cylinder 16, so that the pneumatic cylinder 16 is inclined, and the pneumatic cylinder 16 inclines to push the boring machine 18 to machine the inclined surface of the engine cylinder body;
step six: after the processing is finished, the knob bolt 24 is rotated, the clamping piece 25 is loosened, and the engine cylinder body is taken down.
The engine cylinder body is fixed in a placing groove on a supporting plate 7 by a fastening assembly 8, a sliding plate 3 can be pushed to move along a first guide rail 2 by rotating a first threaded screw rod 19, a mounting plate 5 can be pushed to move by a first electromagnetic slide rail 4 and an electromagnetic slide block, so that the position of the supporting plate 7 and the engine cylinder body thereon can be adjusted, cylinder hole processing is facilitated, a boring machine 18 is pushed by a pneumatic cylinder 16 to carry out boring processing, in the process, a sliding seat 13 is enabled to move along a second guide rail 12 for fine adjustment by rotating a second threaded screw rod 21, a movable connecting seat 11 is enabled to move along a second electromagnetic slide rail 10 for fine adjustment by a second electromagnetic slide rail 10, so that the boring machine 18 is enabled to carry out fine adjustment front and back and left and right, cylinder hole processing is smooth, processing quality is improved, meanwhile, the pneumatic cylinder 16 can be pushed to incline by an electric telescopic rod 17, so that the pneumatic cylinder 16 inclines to push, the function is diversified, saves the cost.
The foregoing illustrates and describes the principles, general features, and advantages of the present 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 described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present 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 (7)
1. The utility model provides a cylinder hole processing frock of automobile engine cylinder block, includes workstation (1), its characterized in that: the front end and the rear end above the workbench (1) are respectively provided with a first guide rail (2), the first guide rail (2) is movably provided with a sliding plate (3), two sides above the sliding plate (3) are respectively provided with a first electromagnetic slide rail (4), the first electromagnetic slide rail (4) is provided with a mounting plate (5) through an electromagnetic slide block, the top of the mounting plate (5) is provided with a servo motor (6), the output end of the servo motor (6) is provided with a supporting plate (7), the supporting plate (7) is provided with a placing groove, the inner wall of the placing groove is equidistantly provided with a plurality of groups of fastening components (8), the front end and the rear end above the workbench (1) are respectively provided with a working frame (9), the working frame (9) is provided with a second electromagnetic slide rail (10), the second electromagnetic slide rail (10) is provided with a movable connecting seat (11) through an electromagnetic slide block, and the movable connecting seat (11) is provided with a, a sliding seat (13) is movably mounted on the second guide rail (12), and a boring assembly is arranged on one side of the sliding seat (13).
2. The cylinder hole machining tool for the automobile engine cylinder block as claimed in claim 1, wherein the tool comprises: the boring assembly comprises a fixing plate (14) and an articulated rod (15), the articulated rod (15) is installed in the rotating mode above one side of the fixing plate (14), a pneumatic cylinder (16) is arranged at one end of the articulated rod (15), an electric telescopic rod (17) is articulated below one side of the fixing plate (14), one end of the electric telescopic rod (17) is articulated with one side of the pneumatic cylinder (16), and a boring machine (18) is arranged at the output end of the pneumatic cylinder (16).
3. The cylinder hole machining tool for the automobile engine cylinder block as claimed in claim 1, wherein the tool comprises: the middle position department at workstation (1) top rotates through the bearing frame and installs first screw lead screw (19), and the one end of first screw lead screw (19) is equipped with step motor (20), step motor (20) drive first screw lead screw (19) are rotatory, the middle position department of slide (3) bottom is equipped with the nut piece with first screw lead screw (19) looks adaptation.
4. The cylinder hole machining tool for the automobile engine cylinder block as claimed in claim 1, wherein the tool comprises: and a second threaded screw rod (21) is rotatably installed at the middle position above the movable connecting seat (11) through a bearing seat, the second threaded screw rod (21) is driven to rotate by a motor, and the second threaded screw rod (21) penetrates through the sliding seat (13) in a threaded manner.
5. The cylinder hole machining tool for the automobile engine cylinder block as claimed in claim 1, wherein the tool comprises: the top edge of mounting panel (5) is equipped with ring rail (22), the edge of layer board (7) bottom is in through slider activity support on ring rail (22).
6. The cylinder hole machining tool for the automobile engine cylinder block as claimed in claim 1, wherein the tool comprises: the fastening assembly (8) comprises a gasket (23) and a knob bolt (24), the knob bolt (24) penetrates through the gasket (23) in a threaded mode, and a clamping piece (25) is arranged at the inner end of the knob bolt (24).
7. The method of claim 1, wherein the method comprises the steps of: the method comprises the following steps:
the method comprises the following steps: placing an engine cylinder body to be processed into a placing groove on a supporting plate (7), rotating a knob bolt (24) to push a clamping piece (25), and fixing the engine cylinder body from the periphery;
step two: starting a stepping motor (20) to drive a first threaded screw rod (19) to rotate, pushing a sliding plate (3) to move along a first guide rail (2), starting a first electromagnetic slide rail (4), pushing a mounting plate (5) to move through an electromagnetic slide block, moving a supporting plate (7) and an upper engine cylinder body to the lower part of a boring assembly, and aligning a specified position to a boring machine (18);
step three: starting a boring machine (18), pushing by using a pneumatic cylinder (16), enabling the boring machine (18) to be in contact with an engine cylinder body for boring, in the process, starting a motor to drive a second threaded screw rod (21) to rotate, enabling a sliding seat (13) to move along a second guide rail (12) for fine adjustment, and simultaneously starting a second electromagnetic slide rail (10), enabling a movable connecting seat (11) to move along the second electromagnetic slide rail (10) for fine adjustment, so that the boring machine (18) is fine adjusted front and back, left and right, and a cylinder hole is machined smoothly;
step four: after the cylinder hole at the position is machined, repeating the step two, changing the position of the engine cylinder body, machining the cylinder holes at other positions again, and meanwhile, starting a servo motor (6) to drive a tray (7) to rotate according to needs so that the direction of the engine cylinder body is adjusted to be machined;
step five: when the cylinder hole is required to be machined on the inclined surface, the electric telescopic rod (17) is started to push the pneumatic cylinder (16) to enable the pneumatic cylinder (16) to incline, and the pneumatic cylinder (16) inclines to push the boring machine (18) to machine the inclined surface of the engine cylinder body;
step six: after the processing is finished, the knob bolt (24) is rotated, the clamping piece (25) is loosened, and the engine cylinder body is taken down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911079889.6A CN110695407A (en) | 2019-11-07 | 2019-11-07 | Cylinder hole machining tool and machining method for automobile engine cylinder block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911079889.6A CN110695407A (en) | 2019-11-07 | 2019-11-07 | Cylinder hole machining tool and machining method for automobile engine cylinder block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110695407A true CN110695407A (en) | 2020-01-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911079889.6A Pending CN110695407A (en) | 2019-11-07 | 2019-11-07 | Cylinder hole machining tool and machining method for automobile engine cylinder block |
Country Status (1)
| Country | Link |
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| CN (1) | CN110695407A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112082444A (en) * | 2020-09-03 | 2020-12-15 | 一汽解放汽车有限公司 | Reverse centering device, centering method and testing method for engine |
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| CN204818210U (en) * | 2015-07-02 | 2015-12-02 | 诸城市智鑫模具装备有限公司 | Move roof beam planer -type milling machine |
| CN206578537U (en) * | 2017-03-07 | 2017-10-24 | 芜湖仅一机械有限公司 | A kind of borehole chasing bar of steering wheel die casting from dynamic triaxial drilling machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112082444A (en) * | 2020-09-03 | 2020-12-15 | 一汽解放汽车有限公司 | Reverse centering device, centering method and testing method for engine |
| CN112082444B (en) * | 2020-09-03 | 2022-05-24 | 一汽解放汽车有限公司 | Reverse centering device, centering method and testing method for engine |
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Application publication date: 20200117 |