CN109352367A - Pneumatic expansion core vehicle clamper - Google Patents
Pneumatic expansion core vehicle clamper Download PDFInfo
- Publication number
- CN109352367A CN109352367A CN201811625169.0A CN201811625169A CN109352367A CN 109352367 A CN109352367 A CN 109352367A CN 201811625169 A CN201811625169 A CN 201811625169A CN 109352367 A CN109352367 A CN 109352367A
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- CN
- China
- Prior art keywords
- plate
- central axis
- pull rod
- sealing
- piston
- 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
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Classifications
-
- 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
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
-
- 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
-
- 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
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/04—Work clamping means using fluid means or a vacuum
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention belongs to technical fields of mechanical processing, a kind of pneumatic expansion core vehicle clamper, including rack are specifically disclosed, rack is equipped with driving mechanism and clamp system, driving mechanism includes piston cylinder and the piston plate for being built in piston cylinder, and the power source for driving it to move left and right is connected on piston plate；Clamp system includes pull rod, fixed block and central axis, pull rod one end is connect with piston plate, its other end is equipped with push plate, fixed block is fixedly connected on the rack, and fixed block side is provided with groove, and central axis is slidably connected with groove sealing, pull rod is located on the central axis of central axis, side of the central axis far from fixed block is circumferentially hinged with several clamping plates, is equipped with integral type air bag around clamping plate, clamping plate one end is hinged with sealing plate.This programme controls the opening and closing of clamping plate by the movement of pull rod, realizes the interior clamping to workpiece, while sealing the hole of workpiece using air bag expansion and the effect of sealing plate, prevents clast when workpieces processing from falling into hole.
Description
Technical field
The invention belongs to technical field of mechanical processing more particularly to a kind of pneumatic expansion core vehicle clampers.
Background technique
In the process of component of machine, the positioning accuracy of component of machine has larger impact to its machining accuracy.
Originally inner hole was supportted using common scroll chuck and hydraulic scroll chuck, the coaxial error of inner hole is big, and positioning accuracy is low, not can guarantee
The tight fit of components and fixture, machining accuracy also fail to meet production requirements.And currently used common mandrel, it is difficult to solve
Mandrel and inner hole gapless problem, and inconvenience is assembled and disassembled, although other expanding arbors used can guarantee required precision, its
Structure is complicated, higher cost, and maintenance manufacture is difficult.
Summary of the invention
The purpose of the present invention is to provide a kind of pneumatic expansion core vehicle clamper, realizes and the gapless of inner hole is clamped, while not
It is influenced by coaxial error, apparatus structure is simpler compared with prior art.
In order to achieve the above object, base case of the invention are as follows: a kind of pneumatic expansion core vehicle clamper, including rack, rack
It is equipped with workbench and the clamp system positioned at workbench side, the clamp system includes fixed block, central axis and pull rod, Gu
Determine block to be fixedly connected with rack, fixed block side is provided with groove, and central axis is slidably connected with groove sealing, and central axis is far from groove
One end be hinged with the clamping plates of several even numbered blocks, be inside central axis it is hollow, pull rod is located at the position of center line of central axis, and wears
The two sides of central axis are crossed, pull rod one end is connected with the driving mechanism for driving it to move horizontally, and the other end is connected with its parallel end
The pressing plate of face sliding.
The working principle and beneficial effect of this base case are: workbench is clamped for placing components to be processed
Mechanism is located at workbench side, and the clamping position of clamp system is enable to enter in the inner hole of components naturally.Driving mechanism is driven
Pull rod is moved horizontally, and pull rod is connected with pressing plate, the mobile band dynamic pressure plate of pull rod is mobile, and pressing plate is bonded with clamping plate, so pressing plate
The outward active force of clamping plate is made to clamping plate application, until clamping plate offsets with components inner hole, so that components be clamped；Add
It, pressing plate can slide on the end face of pull rod, so even if pull rod is not at the axle center line position of components, it can also benefit
So that clamping plate is offseted with inner hole with the sliding of pressing plate, cancellation element it is not coaxial with components inner hole and generate error, simultaneously lead to
The angle difference that the mobile different location of pressing plate opens clamping plate is crossed, i.e., clamping plate can clamp the components of different inner diameters size.In
Mandrel is slidably connected with groove sealing, convenient disassembly；Be inside central axis it is hollow, pull rod is located at the position of center line of central axis,
And the two sides of central axis are passed through, and such pull rod is slidably connected with central axis, when pull rod pulls pressing plate squeezing splints, central axis one end
It offsets with bottom portion of groove, so the mobile location status that will not influence central axis of pull rod, enables pressing plate to smoothly complete to clamping plate
Extruding push.
Further, the clamping plate is circumferentially with the air bag of integral type, and air bag side is fixedly connected with central axis, the other side with
Clamping plate is fixedly connected far from one end of central axis, and air bag is equipped with stomata, and the air inlet machine of air-blowing in oriented air bag is connected at stomata
Structure.
In this way when clamping plate clamps components inner hole, admission gear is inflated by stomata into air bag, and air bag is swollen
It is swollen will be fully wrapped around on the outside of clamping plate, while the inner hole of air bag and components offsets, realize and the gapless of components inner hole clamped,
Optimize the clamping effect to components, additionally it is possible to prevent clast when parts machining from falling into components between the gap of clamping plate
In inner hole.
Further, the admission gear includes sealing plate and air inlet cylinder, and the one end of sealing plate and clamping plate far from central axis is hinged,
Expansion plate is connected between the sealing plate being opposite to each other, for air inlet cylinder between sealing plate and clamping plate, air inlet cylinder and clamping plate side are hinged,
Air inlet pipe is communicated between air inlet cylinder head and stomata, sealing slidably connects push plate in air inlet cylinder, is fixedly connected in push plate
There is a push rod, separate sealing plate is hinged corresponding thereto for push rod.
When clamping plate is flared out in this way, the distance between each sealing plate facing each other is gradually increased, and stretch plate stretching, and flexible
Plate makes sealing plate remain face state, and clast when being beneficial to prevent parts machining is fallen into the inner hole of components, simultaneously
The length of push rod is constant, so the sealing plate being connected with push rod pulls push rod to move obliquely upward, push rod drives push plate mobile,
Push plate is mobile to be pushed in air inlet cylinder relative to the gas above push plate, and gas is squeezed into air inlet pipe, gas again from air inlet pipe into
Enter air bag, air bag inflation.
Further, the driving mechanism includes piston cylinder and power source, and sealing slidably connects piston plate in piston cylinder, living
Seben is fixedly connected with pull rod, and power source is connect with piston plate, and piston plate is driven to move back and forth horizontally；Piston cylinder is close to fixed
It is communicated with exhaust pipe between the side and sealing plate of block, the connectivity part of tracheae and clamping plate is equipped with unidirectional toward the exhaust list be connected outside exhaust pipe
To valve, the side that piston cylinder is equipped with exhaust pipe is provided with air inlet, and the unidirectional air inlet list be connected in piston cylinder is equipped at air inlet
To valve.
Driving mechanism is mobile using power source drive piston plate, to drive piston rod mobile, when piston plate is to piston cylinder
When mobile close to the side of fixed block, by the gas extrusion air inlet-outlet pipe in piston cylinder relative to piston plate moving direction side,
Exhaust check valve conducting simultaneously, gas reaches clamping plate from exhaust pipe again, then between the clast of the components falling into clamping plate gap
Apply wind-force, will be blown outside clast inward hole, finishing device cleaning；And when piston plate counter motion, piston plate and piston cylinder
Negative pressure is formed between side wall equipped with air inlet, breather check valve conducting enters the gas outside piston cylinder in piston cylinder.
Further, cavity is provided on the central axis inner wall, sealing slidably connects sliding block, sliding block and cavity bottom in cavity
Portion is fixedly connected with elastic component, and sliding block is equipped with sawtooth towards the side of pull rod, and pull rod outer wall is equipped with the card that can be engaged with sawtooth
Block.
In this way when pull rod pulls pressing plate to close central axis side, sawtooth sliding opposite with the curved surface of fixture block, fixture block
One pressure is applied to sawtooth, slides sliding block into cavity, elastic component is compressive state, and pull rod can smoothly glide；Work as drawing
When bar moves backward, sawtooth offsets with fixture block, and pull rod is mobile to drive central axis mobile, and central axis movement makes clamping plate and air bag simultaneously
Mobile, clamping plate and air bag push the clast between falling into the two gap outside inner hole to, the cleaning of finishing device and inner port edge.
Further, the pressing plate side opposite with clamping plate is the inclined-plane being bonded with clamping plate.In this way compared with perpendicular,
Instead of face contact, face face do not offset between pressing plate and clamping plate, make pressing plate to the active force of clamping plate more evenly, pressing plate applies clamping plate
It is more stable when adding active force, it is more preferable to the squeezing effect of clamping plate.
Further, the pressing plate two sides are fixedly connected with circular protrusions, and pull rod is equipped with and circle close to the end face of pressing plate
The sliding slot that protrusion is slidably matched.So that pressing plate is slided on pull rod end face along end face in this way, while not influencing pressing plate to clamping plate
Active force clamping can be also fitted closely with inner bore of part even if fixture is not disposed in the axial centerline of part.
Further, its opposite side is provided with strip-shaped hole, expansion plate side and strip-shaped hole bottom between the sealing plate of the face
It is fixedly connected.
When the sealing plate mutually faced in this way is driven away from each other by clamping plate, the plate stretching that stretches is by the spatial portion enfeoffment between sealing plate
It closes, reduces the quantity for entering the clast of inner hole, each section of simultaneous retractable plate forms a whole, and stretched is also one piece flat
Plate is initial face state between keeping sealing plate with this, avoids sealing plate fold from increasing the gap between sealing plate and clamping plate, reduces zero
The clast that part processing generates enters the possibility of device, avoids expending unnecessary man power and material and clear up device.
Detailed description of the invention
Fig. 1 is the transverse sectional view of the pneumatic expansion core vehicle clamper embodiment of the present invention.
Specific embodiment
It is further described below by specific embodiment:
Appended drawing reference in Figure of description includes: piston cylinder 1, piston plate 2, pull rod 3, central axis 4, fixed block 5, clamping plate
6, pressing plate 7, air bag 8, sealing plate 9, expansion plate 10, air inlet cylinder 11, push rod 12, sliding block 13, spring 14, air inlet 15, workbench
16。
Embodiment is as shown in Fig. 1: a kind of pneumatic expansion core vehicle clamper, including rack, and rack is equipped with the workbench of rectangle
16 and the clamp system positioned at the left side of workbench 16, workbench 16 be fixedly connected with rack, clamp system include driving part with
Hold assembly.
Driving part includes power source and piston cylinder 1, and power source uses pneumatic cylinder, and pneumatic cylinder is fixedly connected with rack, living
Plug cylinder 1 is located on the right side of power source, and piston cylinder 1 is fixedly connected with rack, and 1 right side of piston cylinder is communicated with exhaust pipe, exhaust pipe
Right side is equipped with the unidirectional exhaust check valve toward conducting outside exhaust pipe；Air inlet 15 is provided on 1 right side wall of piston cylinder, at air inlet 15
Equipped with the breather check valve be unidirectionally connected in piston cylinder 1；Sealing slidably connects piston plate 2 in piston cylinder 1, piston plate 2
Left side is fixedly connected with the piston rod of pneumatic cylinder.
Hold assembly includes fixed block 5, central axis 4 and pull rod 3, and fixed block 5 is rectangular block, is located at the right side of piston cylinder 1
Side, fixed block 5 are fixedly connected with rack, and 5 right side of fixed block is provided with groove, and center-pole is slidably connected with groove sealing.
Central axis is a cross bar, it is internal be it is hollow, two clamping plates 6,6 left side of clamping plate and center are circumferentially on the right side of central axis
The right part of axis is hinged, and 6 side wall of clamping plate is fixedly connected with exhaust pipe.And 6 external circumferential of clamping plate is equipped with the air bag 8 of integral type, gas
The left side of capsule 8 is fixedly connected with the right side of central axis, and the right side of air bag 8 is fixedly connected with the right side edge of clamping plate 6, air bag
8 right end faces are equipped with stomata.The right side of clamping plate 6 is hinged with sealing plate 9, and sealing plate 9 keeps vertical and face state, two blocks of sealing plates 9
The side of face is provided with strip-shaped hole, and the forward and backward side of strip-shaped hole is that expansion plate 10 is equipped between state, two strip-shaped holes, stretches
The both ends of contracting plate 10 respectively be fixedly connected inside strip-shaped hole, expansion plate 10 is set there are four telescopic joint.Air inlet is equipped with below sealing plate 9
Cylinder 11, air inlet cylinder 11 and the side of the close pull rod 3 of clamping plate 6 are hinged, and sealing slidably connects push plate in air inlet cylinder 11,
It is fixedly connected with push rod 12 at the top of push plate, the left side of the sealing plate 9 of push rod 12 corresponding thereto is hinged, 11 top of air inlet cylinder and gas
Air inlet pipe is communicated between 8 stomata of capsule.
The left part of pull rod 3 is fixedly connected with piston plate 2, sets that there are two lateral sliding slot, sliding slots on the right side of pull rod 3
Inside slidably connect circular protrusions, circular protrusions are fixedly connected with pressing plate 7, the right end face with central axis 4 in parallel of pressing plate 7, pressure
The side opposite with clamping plate 6 of plate 7 is the inclined-plane from left to right and being inclined outwardly；3 outer wall of pull rod is equipped with fixture block, the right side of fixture block
It is a flat surface, left side is the curved surface of protrusion.Center-pole inner wall is equipped with the sawtooth that can be engaged with fixture block, sawtooth left and right side
Structure setting and fixture block on the contrary, and be fixedly connected with sliding block 13 at the top of sawtooth, center-pole inner wall is provided with a cavity, sliding block 13 with
Cavity sealing is slidably connected, and spring 14 is fixedly connected between sliding block 13 and the bottom of cavity.
Original state: piston plate 2 is located at the right side of piston cylinder 1, and the left side of 4 left side of central axis and groove offsets, and presses
Plate 7 is close to the left side of sealing plate 9, and pressing plate 7 offsets with clamping plate 6, and clamping plate 6 slightly opens, and air bag 8 is in contraction state, air inlet
Push plate in cylinder 11 is located at the bottom of air inlet cylinder 11.
Operating process:
Clamping process: components being placed on workbench 16, protrude into hold assembly in the inner hole of components, starts gas
Cylinder pressure, pneumatic cylinder drive piston plate 2 be moved to the left, piston plate 2 drive pull rod 3 be moved to the left, and pull rod 3 with dynamic pressure plate 7 to the left
Mobile, pressing plate 7 is mobile between two clamping plates 6 to squeeze two clamping plates 6, be flared out clamping plate 6 until clamping plate 6 and components it is interior
Hole offsets.
In the process, clamping plate 6, which is flared out, drives sealing plate 9 mobile, and the expansion plate 10 between sealing plate 9 stretches out strip-shaped hole, together
When sealing plate 9 is mobile drives push rod 12 mobile, push rod drags push plate to moving at the top of air inlet cylinder 11, and push plate squeezes air inlet cylinder 11
Gas between top and push plate, gas enter air bag 8 by air inlet pipe, and air bag 8 gradually expands, at this time in air bag 8 and components
Hole offsets, and completes the interior clamping to components, stops pneumatic cylinder.
Scale removal process: parts machining finishes, and starts pneumatic cylinder, and pneumatic cylinder drives piston plate 2 to move right, piston plate 2
Pull rod 3 is driven to move right, the fixture block on 3 outer wall of pull rod engages with the sawtooth on 4 inner wall of central axis at this time, in the drive of pull rod 3
Mandrel 4 moves right together, to drive clamping plate 6 and air bag 8 to move right together, until clamping plate 6 and air bag 8 stretch out components
Until inner hole, the clast that clamping plate 6 and air bag 8 generate the parts machining fallen into components inner hole releases inner hole.Exist simultaneously
During piston plate 2 moves right, gas between 2 extrusion piston cylinder of piston plate, 1 right side wall and piston plate 2, gas enters row
Tracheae, the pressure in exhaust pipe increase, and open exhaust check valve, and exhaust pipe conducting, gas enters the region between clamping plate 6, will
Clast in the region is from blowing out inner hole, the cleaning of complete twin installation between the gap of clamping plate 6.
What has been described above is only an embodiment of the present invention, and the common sense such as well known specific structure and characteristic are not made herein in scheme
Excessive description.It, without departing from the structure of the invention, can be with it should be pointed out that for those skilled in the art
Several modifications and improvements are made, these also should be considered as protection scope of the present invention, these all will not influence what the present invention was implemented
Effect and patent practicability.The scope of protection required by this application should be based on the content of the claims, in specification
The records such as specific embodiment can be used for explaining the content of claim.
Claims (8)
1. a kind of pneumatic expansion core vehicle clamper, including rack, rack is equipped with workbench and the clamp system positioned at workbench side,
It is characterized by: the clamp system includes fixed block, central axis and pull rod, fixed block is fixedly connected with rack, fixed block one
Side is provided with groove, and central axis is slidably connected with groove sealing, and central axis is hinged with the folder of several even numbered blocks far from one end of groove
Plate, be inside central axis it is hollow, pull rod is located at the position of center line of central axis, and across the two sides of central axis, pull rod one end
It is connected with the driving mechanism for driving it to move horizontally, the other end is connected with the pressing plate of parallel its end face sliding.
2. pneumatic expansion core vehicle clamper according to claim 1, it is characterised in that: the clamping plate is circumferentially with the gas of integral type
Capsule, air bag side are fixedly connected with central axis, and the other side is fixedly connected with clamping plate far from one end of central axis, and air bag is equipped with gas
Hole connects the admission gear of air-blowing in oriented air bag at stomata.
3. pneumatic expansion core vehicle clamper according to claim 2, it is characterised in that: the admission gear includes sealing plate and air inlet
The one end of cylinder, sealing plate and clamping plate far from central axis is hinged, and expansion plate is connected between the sealing plate being opposite to each other, and air inlet cylinder is located at
Between sealing plate and clamping plate, air inlet cylinder and clamping plate side are hinged, and air inlet pipe, air inlet cylinder are communicated between air inlet cylinder head and stomata
Interior sealing slidably connects push plate, is fixedly connected with push rod in push plate, and separate sealing plate is hinged corresponding thereto for push rod.
4. pneumatic expansion core vehicle clamper according to claim 1, it is characterised in that: the driving mechanism includes piston cylinder and moves
Power source, the interior sealing of piston cylinder slidably connect piston plate, and piston plate is fixedly connected with pull rod, and power source is connect with piston plate, and
Piston plate is driven to move back and forth horizontally；Piston cylinder is communicated with exhaust pipe, exhaust pipe and folder between the side and sealing plate of fixed block
The connectivity part of plate is equipped with the unidirectional exhaust check valve toward conducting outside exhaust pipe, and the side that piston cylinder is equipped with exhaust pipe is provided with air inlet
Mouthful, the unidirectional breather check valve be connected in piston cylinder is equipped at air inlet.
5. pneumatic expansion core vehicle clamper according to claim 3, it is characterised in that: it is provided with cavity on the central axis inner wall,
Sealing slidably connects sliding block in cavity, and sliding block and cavity bottom are fixedly connected with elastic component, and sliding block is towards on the side of pull rod
Equipped with sawtooth, pull rod outer wall is equipped with the fixture block that can be engaged with sawtooth.
6. pneumatic expansion core vehicle clamper according to claim 2, it is characterised in that: the pressing plate side opposite with clamping plate is
The inclined-plane being bonded with clamping plate.
7. pneumatic expansion core vehicle clamper according to claim 6, it is characterised in that: the pressing plate two sides are fixedly connected with circle
Protrusion, pull rod are equipped with the sliding slot being slidably matched with circular protrusions close to the end face of pressing plate.
8. pneumatic expansion core vehicle clamper according to claim 3, it is characterised in that: its is opposite between the sealing plate of the face one
Side is provided with strip-shaped hole, and expansion plate side is fixedly connected with strip-shaped hole bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811625169.0A CN109352367A (en) | 2018-12-28 | 2018-12-28 | Pneumatic expansion core vehicle clamper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811625169.0A CN109352367A (en) | 2018-12-28 | 2018-12-28 | Pneumatic expansion core vehicle clamper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109352367A true CN109352367A (en) | 2019-02-19 |
Family
ID=65329511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811625169.0A Pending CN109352367A (en) | 2018-12-28 | 2018-12-28 | Pneumatic expansion core vehicle clamper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109352367A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110394494A (en) * | 2019-08-08 | 2019-11-01 | 西安理工大学 | Core rod and pipe shearing device |
| CN110712153A (en) * | 2019-11-20 | 2020-01-21 | 武汉万杰光电有限公司 | Locking device for machining clamp |
| CN111993261A (en) * | 2020-08-18 | 2020-11-27 | 含山县龙顺机械配件厂 | Pyramid cover finish machining device of metallurgical machinery reel part |
| CN112975726A (en) * | 2021-03-22 | 2021-06-18 | 重庆市毅博机械有限公司 | Sighting telescope accessory auxiliary mechanism with protection function |
| CN114264480A (en) * | 2020-09-16 | 2022-04-01 | 中国航发商用航空发动机有限责任公司 | Pneumatic test mounting seat |
| CN114714191A (en) * | 2022-04-27 | 2022-07-08 | 浙江万丰奥威汽轮股份有限公司 | Deburring device |
-
2018
- 2018-12-28 CN CN201811625169.0A patent/CN109352367A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110394494A (en) * | 2019-08-08 | 2019-11-01 | 西安理工大学 | Core rod and pipe shearing device |
| CN110394494B (en) * | 2019-08-08 | 2020-11-20 | 西安理工大学 | Core rod and pipe shearing device |
| CN110712153A (en) * | 2019-11-20 | 2020-01-21 | 武汉万杰光电有限公司 | Locking device for machining clamp |
| CN111993261A (en) * | 2020-08-18 | 2020-11-27 | 含山县龙顺机械配件厂 | Pyramid cover finish machining device of metallurgical machinery reel part |
| CN114264480A (en) * | 2020-09-16 | 2022-04-01 | 中国航发商用航空发动机有限责任公司 | Pneumatic test mounting seat |
| CN114264480B (en) * | 2020-09-16 | 2023-06-23 | 中国航发商用航空发动机有限责任公司 | Pneumatic test mounting seat |
| CN112975726A (en) * | 2021-03-22 | 2021-06-18 | 重庆市毅博机械有限公司 | Sighting telescope accessory auxiliary mechanism with protection function |
| CN112975726B (en) * | 2021-03-22 | 2022-05-03 | 重庆市毅博机械有限公司 | Sighting telescope accessory auxiliary mechanism with protection function |
| CN114714191A (en) * | 2022-04-27 | 2022-07-08 | 浙江万丰奥威汽轮股份有限公司 | Deburring device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190219 |
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| RJ01 | Rejection of invention patent application after publication |