CN109108356A - A kind of lift cutting bed making Piano Fittings - Google Patents
A kind of lift cutting bed making Piano Fittings Download PDFInfo
- Publication number
- CN109108356A CN109108356A CN201810692025.0A CN201810692025A CN109108356A CN 109108356 A CN109108356 A CN 109108356A CN 201810692025 A CN201810692025 A CN 201810692025A CN 109108356 A CN109108356 A CN 109108356A
- Authority
- CN
- China
- Prior art keywords
- cutting
- table board
- screw rod
- backup plate
- cutting table
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D19/00—Shearing machines or shearing devices cutting by rotary discs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D15/00—Shearing machines or shearing devices cutting by blades which move parallel to themselves
- B23D15/06—Sheet shears
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D33/00—Accessories for shearing machines or shearing devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D33/00—Accessories for shearing machines or shearing devices
- B23D33/02—Arrangements for holding, guiding, and/or feeding work during the operation
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The invention discloses a kind of lift cutting beds for making Piano Fittings, including pedestal, elevating mechanism, cutting table board, cutting tool, cutter drives mechanism, backup plate, backup plate delivery device, dust collection mechanism and control panel, the elevating mechanism is provided with multiple and uniform correspondence and is installed on base top edge, the elevating mechanism is used for horizontally-supported and oscilaltion is driven to adjust cutting table board, the elevating mechanism includes mounting base, lifting screw, fixing seat, turbine, shaft and driving motor, the mounting base is in longitudinal tubular setting and internal the first elevating screw thread being equipped with lifting screw threaded engagement.Operation of the present invention is simple, easy to use, can satisfy the adjustment of different cutting table board height, adaptable, reliably, practical, while the stability of plate cutting is effectively improved, error is small, it ensure that cut quality, and effectively prevent the diffusion of chip dust, meet the requirement of clean manufacturing.
Description
Technical field
The present invention relates to cutting bed technical field, specially a kind of lift cutting bed for making Piano Fittings.
Background technique
Piano is a kind of keyboard instrument, pulls hammer to beat string with key.Since 18 end of the centurys, in Europe and beauty
State, piano are always most important family's keyboard instrument.Piano rises in Europe, and 18 beginnings of the century, Italian Chris is more
A kind of keyboard musical instrument of similar modern piano of Fo Li invention.So far has more than 300 years history.With people's life water
The progress of flat raising and industrial production technology, piano occur gradually in each family.
Piano is in production, since Piano Fittings thickness is not of uniform size, it is therefore desirable to cutting processing is carried out to plate, for
The cutting processing of plate can generally use cutting bed.But traditional cutting bed structure is single, is unable to adjust the height of cutting table board
To adapt to place installation requirements, and required plate accessory is not of uniform size, it usually needs artificial push plate is cut, stability
Difference, easily generation error, influence cut quality, meanwhile, a large amount of chip dusts can be generated when cutting plate, influence working environment, no
Meet the requirement of clean manufacturing.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of lift cutting beds for making Piano Fittings, solve
Cutting bed structure is single, is unable to adjust the height of cutting table board to adapt to place installation requirements, and required plate accessory size
It is different, it usually needs artificial push plate is cut, and stability is poor, easily generation error, influences cut quality, meanwhile, cutting
A large amount of chip dusts can be generated when plate, the problem of influencing working environment, do not meet the requirement of clean manufacturing.
(2) technical solution
To achieve the above object, the invention provides the following technical scheme: a kind of lift cutting for making Piano Fittings
Platform, including pedestal, elevating mechanism, cutting table board, cutting tool, cutter drives mechanism, backup plate, backup plate delivery device, vacuum cleaner
Structure and control panel, the elevating mechanism are provided with multiple and uniform correspondence and are installed on base top edge, the elevator
Structure is used for horizontally-supported and oscilaltion is driven to adjust cutting table board, and the elevating mechanism includes mounting base, lifting screw, fixation
Seat, turbine, shaft and driving motor, the mounting base is in longitudinal tubular setting and inside is equipped with and lifting screw threaded engagement
First elevating screw thread, the fixing seat pass through the fixed frame being fixed on the base and are movably installed on lifting screw and correspond to installation
Seat top, turbine be movably installed in fixing seat by shaft and with lifting screw threaded engagement, the driving motor it is defeated
Outlet is connect by shaft coupling with shaft, and the bottom of the cutting table board is equipped with the screw-bearing to match with lifting screw, institute
Cutting table board is stated equipped with cutter groove, the cutting tool is driven by cutter drives mechanism carries out cutting operation and corresponding installation
In in cutter groove, the backup plate delivery device includes that push screw rod and screw rod guide bracket, the screw rod guide bracket are fixedly installed in cutting
On table top and the axial side of corresponding cutting tool, the push screw rod are connect with screw rod guide bracket spiral, and the push screw rod is worn
The one end for inserting screw rod guide bracket is flexibly connected with backup plate, the other end for pushing screw rod equipped with handwheel, on the cutting table board and
Corresponding backup plate bottom position is equipped with the sliding slot with the axially vertical setting of cutting tool, and the bottom of the backup plate is equipped with and sliding slot phase
The sliding block matched, the dust collection mechanism include disposal box, sweep-up pipe and dust hood, and the dust hood is installed on by support frame correspondence
The surface of cutting tool, the disposal box are fixedly installed on pedestal, the both ends of the sweep-up pipe respectively with dust hood sum aggregate
Dirt case connects, and is in series with blower on the sweep-up pipe, the control panel is installed on the protection cabinet of cutter drives mechanism, institute
The inside for stating control panel is equipped with the controller being electrically connected respectively with driving motor and blower, and the control panel is equipped with display
Shield, on the control panel and is located at the lower section of display screen equipped with transfer the files key group and start-stop button, the display screen, key group of transferring the files
It is electrically connected with the controller respectively with start-stop button, the key group of transferring the files includes that one grade of height adjustment button, two grades of height are adjusted and pressed
Button and third gear height adjust button, one grade of height adjustment button, two grades of height adjustment buttons and third gear height adjustment button difference
The adjustable height of corresponding elevating mechanism driving cutting table board and incremented by successively.
Further, the bottom of the pedestal is equipped with idler wheel.
Further, the inside of the fixing seat is equipped with the second elevating screw thread with lifting screw threaded engagement.
Further, the inside of the fixing seat is equipped with the bearing to match with shaft.
Further, the bottom of support frame as described above and be located at dust hood periphery be equipped with shield.
(3) beneficial effect
The present invention provides a kind of lift cutting bed for making Piano Fittings, have it is following the utility model has the advantages that
(1), the lift cutting bed of the production Piano Fittings, by elevating mechanism being arranged on pedestal to be used for level
It supports and oscilaltion is driven to adjust cutting table board, control panel in cooperation equipped with controller and be electrically connected with the controller
Display screen, transfer the files key group and start-stop button, by transferring the files, key group can be risen or fallen cutting table board to different height gear,
The rotation or stopping of driving motor can be controlled by pressing start-stop button, it is easy to operate, it is easy to use, meet different cutting table boards
The adjustment of height, it is adaptable, it is reliable, practical.
(2), the lift cutting bed of the production Piano Fittings is passed through by setting backup plate and backup plate delivery device
Backup plate pushes being equipped with for screw rod, screw rod guide bracket and handwheel, in face of the cutting demand of different plates, it is only necessary to pass through rotation
Handwheel pushes backup plate to reclining with plate by push screw rod, and push plate is cut, and the steady of plate cutting is effectively improved
Qualitative, error is small, ensure that cut quality.
(3), the lift cutting bed of the production Piano Fittings passes through disposal box, dust suction by the way that dust collection mechanism is arranged
Pipe, dust hood and blower are equipped with, generation when cutting tool can be driven to cut plate cutter drives mechanism
Chip dust be collected, effectively prevent chip dust diffusion lead to environmental pollution, meet the requirement of clean manufacturing.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the top view of cutting table board in the present invention.
In figure: 1, pedestal；2, elevating mechanism；201, mounting base；202, lifting screw；203, fixing seat；204, driving electricity
Machine；3, cutting table board；4, cutting tool；5, cutter drives mechanism；6, backup plate；7, backup plate delivery device；701, screw rod is pushed；
702, screw rod guide bracket；703, handwheel；8, dust collection mechanism；801, disposal box；802, sweep-up pipe；803, dust hood；804, blower；9,
Control panel；10, fixed frame；11, cutter groove；12, sliding slot；13, sliding block；14, support frame；15, display screen；16, it transfers the files key group；
17, start-stop button；18, shield.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figs. 1-2, the present invention provides a kind of technical solution: a kind of lift cutting bed making Piano Fittings,
Including pedestal 1, elevating mechanism 2, cutting table board 3, cutting tool 4, cutter drives mechanism 5, backup plate 6, backup plate delivery device 7, inhale
Dirt mechanism 8 and control panel 9, the elevating mechanism 2 are provided with multiple and uniform correspondence and are installed on 1 top edge of pedestal, institute
It states elevating mechanism 2 to be used for horizontally-supported and oscilaltion is driven to adjust cutting table board 3, the elevating mechanism 2 includes mounting base
201, lifting screw 202, fixing seat 203, turbine, shaft and driving motor 204, the mounting base 201 are in longitudinal tubular setting
And internal the first elevating screw thread being equipped with 202 threaded engagement of lifting screw, the fixing seat 203 is by being fixed on pedestal 1
Fixed frame 10 be movably installed on lifting screw 202 and the top of corresponding mounting base 201, turbine are movably installed in by shaft
In fixing seat 203 and with 202 threaded engagement of lifting screw, the output end of the driving motor 204 connected by shaft coupling and shaft
It connects, the bottom of the cutting table board 3 is equipped with the screw-bearing to match with lifting screw 202, and the cutting table board 3 is equipped with knife
Having slot 11, the cutting tool 4 carries out cutting operation by the driving of cutter drives mechanism 5 and correspondence is installed in cutter groove 11,
The backup plate delivery device 7 includes that push screw rod 701 and screw rod guide bracket 702, the screw rod guide bracket 702 are fixedly installed in cutting bed
On face 3 and the axial side of corresponding cutting tool 4, the push screw rod 701 are connect with 702 spiral of screw rod guide bracket, the push
One end that screw rod 701 interts screw rod guide bracket 702 is flexibly connected with backup plate 6, and the other end of the push screw rod 701 is equipped with handwheel
703, on the cutting table board 3 and corresponding 6 bottom position of backup plate is equipped with the sliding slot 12 with the axially vertical setting of cutting tool 4, institute
The bottom for stating backup plate 6 is equipped with the sliding block 13 to match with sliding slot 12, and the dust collection mechanism 8 includes disposal box 801, sweep-up pipe 802
With dust hood 803, the dust hood 803 passes through the corresponding surface for being installed on cutting tool 4 of support frame 14, the disposal box
801 are fixedly installed on pedestal 1, and the both ends of the sweep-up pipe 802 are connect with dust hood 803 and disposal box 801 respectively, the suction
Blower 804 is in series on dirt pipe 802, the control panel 9 is installed on the protection cabinet of cutter drives mechanism 5, the control
The inside of panel 9 is equipped with the controller being electrically connected respectively with driving motor 204 and blower 804, and the control panel 9 is equipped with aobvious
Display screen 15 on the control panel 9 and is located at the lower section of display screen 15 and is equipped with transfer the files key group 16 and start-stop button 17, the display
Screen 15, key group 16 of transferring the files and start-stop button 17 are electrically connected with the controller respectively, and the key group 16 of transferring the files includes that one grade of height adjusts
Button, two grades of height adjustment buttons and third gear height adjust button, one grade of height adjustment button, two grades of height adjustment buttons and three
Shelves height adjustment button respectively corresponds elevating mechanism 2 and drives the adjustable height of cutting table board 3 and incremented by successively.
Specifically, the bottom of the pedestal 1 is equipped with idler wheel；The inside of the fixing seat 203 is equipped with and lifting screw 202
Second elevating screw thread of threaded engagement；The inside of the fixing seat 203 is equipped with the bearing to match with shaft；Support frame as described above 14
Bottom and be located at dust hood 803 periphery be equipped with shield 18.
When concrete application, by elevating mechanism 2 being arranged on pedestal 1 to be used for horizontally-supported and oscilaltion is driven to adjust
Cutting table board 3, the interior control panel 9 and the display screen 15 being electrically connected with the controller, key group 16 of transferring the files for being equipped with controller of cooperation
And start-stop button 17, by transferring the files, key group 16 can rise or fall cutting table board 3 to different height gear, can also be by pressing
Start-stop button 17 controls the rotation or stopping of driving motor 204, easy to operate, easy to use, meets different 3 height of cutting table board
Adjustment, it is adaptable, it is reliable, practical, by backup plate 6, push screw rod 701, screw rod guide bracket 702 and handwheel 703 cooperation set
Set, in face of the cutting demand of different plates, it is only necessary to by rotate handwheel 703, by push screw rod 701 push backup plate 6 to
Plate reclines, and push plate is cut, and the stability of plate cutting is effectively improved, and error is small, ensure that cut quality, leads to
Being equipped with for disposal box 801, sweep-up pipe 802, dust hood 803 and blower 804 is crossed, cutter drives mechanism 5 can be driven and be cut
Cutter has the chip dust generated when 4 pairs of plates are cut and is collected, and the diffusion of chip dust is effectively prevent to cause environment dirty
Dye, meets the requirement of clean manufacturing.
It can to sum up obtain, operation of the present invention is simple, and it is easy to use, it can satisfy the adjustment of different 3 height of cutting table board, adapt to
Property it is strong, reliable, practical, while effectively improving the stability of plate cutting, error is small, ensure that cut quality, and effectively anti-
Stop the diffusion of chip dust, meets the requirement of clean manufacturing.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended, it should be noted that the electric appliance occurred in this article
Element is electrically connected with extraneous main controller and 220V alternating current, and main controller can play the conventionally known of control for computer etc.
Equipment.
Claims (5)
1. a kind of lift cutting bed for making Piano Fittings, which is characterized in that including pedestal (1), elevating mechanism (2), cut
Ceding of Taiwan face (3), cutting tool (4), cutter drives mechanism (5), backup plate (6), backup plate delivery device (7), dust collection mechanism (8) and control
Panel (9) processed, the elevating mechanism (2) are provided with multiple and uniform correspondence and are installed on edge at the top of pedestal (1), the lifting
Mechanism (2) is used for horizontally-supported and oscilaltion is driven to adjust cutting table board (3), and the elevating mechanism (2) includes mounting base
(201), lifting screw (202), fixing seat (203), turbine, shaft and driving motor (204), the mounting base (201) is in vertical
To tubular setting and internal the first elevating screw thread being equipped with lifting screw (202) threaded engagement, the fixing seat (203) pass through
The fixed frame (10) being fixed on pedestal (1) is movably installed on lifting screw (202) and the top of corresponding mounting base (201),
Turbine be movably installed on fixing seat (203) by shaft and with lifting screw (202) threaded engagement, the driving motor
(204) output end is connect by shaft coupling with shaft, and the bottom of the cutting table board (3) is equipped with and lifting screw (202) phase
Matched screw-bearing, the cutting table board (3) are equipped with cutter groove (11), and the cutting tool (4) passes through cutter drives machine
Structure (5) driving carries out cutting operation and the corresponding cutter groove (11) that is installed on is interior, and the backup plate delivery device (7) includes push screw rod
(701) it is fixedly installed on cutting table board (3) with screw rod guide bracket (702), the screw rod guide bracket (702) and corresponds to cutting tool
(4) axial side, the push screw rod (701) connect with screw rod guide bracket (702) spiral, and the push screw rod (701) is interspersed
One end of screw rod guide bracket (702) is flexibly connected with backup plate (6), and the other end of push screw rod (701) is equipped with handwheel (703),
On the cutting table board (3) and corresponding backup plate (6) bottom position is equipped with the sliding slot with cutting tool (4) axially vertical setting
(12), the bottom of the backup plate (6) is equipped with the sliding block (13) to match with sliding slot (12), and the dust collection mechanism (8) includes dust
Case (801), sweep-up pipe (802) and dust hood (803), the dust hood (803) are installed on cutting by support frame (14) correspondence
The surface of cutter (4), the disposal box (801) are fixedly installed on pedestal (1), the both ends difference of the sweep-up pipe (802)
It is connect with dust hood (803) and disposal box (801), is in series with blower (804), the control panel on the sweep-up pipe (802)
(9) be installed on the protection cabinet of cutter drives mechanism (5), the inside of the control panel (9) be equipped with respectively with driving motor
(204) and the controller of blower (804) electrical connection, the control panel (9) are equipped with display screen (15), the control panel
(9) it is equipped with transfer the files key group (16) and start-stop button (17) on and positioned at the lower section of display screen (15), the display screen (15) is transferred the files
Key group (16) and start-stop button (17) are electrically connected with the controller respectively, and described transfer the files key group (16) include that one grade of height adjustment is pressed
Button, two grades of height adjustment buttons and third gear height adjust button, one grade of height adjustment button, two grades of height adjustment buttons and third gear
Height adjustment button respectively corresponds elevating mechanism (2) driving adjustable height of cutting table board (3) and incremented by successively.
2. a kind of lift cutting bed for making Piano Fittings according to claim 1, it is characterised in that: the pedestal
(1) bottom is equipped with idler wheel.
3. a kind of lift cutting bed for making Piano Fittings according to claim 1, it is characterised in that: the fixation
The inside of seat (203) is equipped with the second elevating screw thread with lifting screw (202) threaded engagement.
4. a kind of lift cutting bed for making Piano Fittings according to claim 1, it is characterised in that: the fixation
The inside of seat (203) is equipped with the bearing to match with shaft.
5. a kind of lift cutting bed for making Piano Fittings according to claim 1, it is characterised in that: the support
The bottom of frame (14) and be located at dust hood (803) periphery be equipped with shield (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810692025.0A CN109108356A (en) | 2018-06-28 | 2018-06-28 | A kind of lift cutting bed making Piano Fittings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810692025.0A CN109108356A (en) | 2018-06-28 | 2018-06-28 | A kind of lift cutting bed making Piano Fittings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109108356A true CN109108356A (en) | 2019-01-01 |
Family
ID=64822324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810692025.0A Pending CN109108356A (en) | 2018-06-28 | 2018-06-28 | A kind of lift cutting bed making Piano Fittings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109108356A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110948583A (en) * | 2019-12-31 | 2020-04-03 | 广州珠江恺撒堡钢琴有限公司 | Machining equipment and machining method for piano keyboard key sub-piece sawing |
| CN113319358A (en) * | 2021-06-09 | 2021-08-31 | 李玲 | Energy-saving casing cutting device is used in switch board processing |
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| CN107553635A (en) * | 2017-10-24 | 2018-01-09 | 湖州南浔双杨木业有限公司 | A kind of woodwork cutter device with wood chip collecting function |
| CN207058779U (en) * | 2017-07-03 | 2018-03-02 | 高邮市金利达机械有限公司 | A kind of bench saw support capable of free rotation |
| CN107756273A (en) * | 2016-08-18 | 2018-03-06 | 胡峻源 | A kind of caliper |
| CN207205422U (en) * | 2017-07-03 | 2018-04-10 | 高邮市金利达机械有限公司 | A kind of Liftable type bench saw support |
| CN108068173A (en) * | 2016-11-07 | 2018-05-25 | 天津市千艺达木业有限公司 | A kind of new cut-to-size saw |
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| CN2444736Y (en) * | 2000-11-04 | 2001-08-29 | 青岛迪玛特五金工具有限公司 | Bench saw |
| CN204736273U (en) * | 2015-07-02 | 2015-11-04 | 张成峰 | Special portable multi -functional dustless bench saw of carpenter |
| CN107756273A (en) * | 2016-08-18 | 2018-03-06 | 胡峻源 | A kind of caliper |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110948583A (en) * | 2019-12-31 | 2020-04-03 | 广州珠江恺撒堡钢琴有限公司 | Machining equipment and machining method for piano keyboard key sub-piece sawing |
| CN110948583B (en) * | 2019-12-31 | 2023-12-08 | 广州珠江恺撒堡钢琴有限公司 | Processing equipment and processing method for piano keyboard key sub-key piece sub-saw |
| CN113319358A (en) * | 2021-06-09 | 2021-08-31 | 李玲 | Energy-saving casing cutting device is used in switch board processing |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190101 |