CN108907275A - A kind of automotive brake pads production cleaning type drilling equipment - Google Patents
A kind of automotive brake pads production cleaning type drilling equipment Download PDFInfo
- Publication number
- CN108907275A CN108907275A CN201810623386.XA CN201810623386A CN108907275A CN 108907275 A CN108907275 A CN 108907275A CN 201810623386 A CN201810623386 A CN 201810623386A CN 108907275 A CN108907275 A CN 108907275A
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- CN
- China
- Prior art keywords
- fixedly installed
- plate
- bevel gear
- screw rod
- drilling equipment
- 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
- 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
- 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
- B23B39/162—Drilling machines with a plurality of working-spindles; Drilling automatons with parallel work spindles having gear transmissions
-
- 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
- B23B47/30—Additional gear with one or more working-spindles attachable to the main working-spindle and mounting the additional gear
-
- 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
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
-
- 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
- B23Q11/0046—Devices for removing chips by sucking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/28—Electric drives
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention discloses a kind of automotive brake padss to produce cleaning type drilling equipment, including bottom plate and lifter plate；The left and right sides of the bottom plate is symmetrically fixedly installed with two blocks of side plates, top plate is fixedly installed at the top of side plate, the downside of two blocks of side plates is also rotatably equipped with the first screw rod, and the left and right sides of lifter plate is connect with two first screw flights respectively, and several placing grooves are uniformly provided on lifter plate；The bottom plate is also fixedly installed with dust-extraction unit.The present invention drives drill bit to move up and down by the cooperation of the second screw rod and slide bar, to drill to brake block, lifter plate is driven to move up and down using the cooperation between the first screw rod and lifter plate simultaneously, to be adapted to the brake block of different-thickness, it is additionally provided with dust-extraction unit and absorbs the dust and clast generated when drilling, avoid pollution the environment in drilling workshop.
Description
Technical field
The present invention relates to a kind of drilling equipment, specifically a kind of automotive brake pads produces cleaning type drilling equipment.
Background technique
Brake block is also brake rubber block.In the brake system of automobile, brake block is the breaking piece of most critical, all brakes
The quality of effect is all that brake block plays a decisive role, so the brake block for agreeing is the patron saint of people and automobile.Brake block one
As by steel plate, bonding thermal insulation layer and friction block constitute, wherein thermal insulation layer is made of adiabatic material, it is therefore an objective to heat-insulated.It rubs
Cleaning block is made of friction material, adhesive, and when brake, which is compressed on brake disc or brake rim, generates friction, to reach vehicle
The purpose of slowing-down brake.Due to rubbing action, friction block can gradually be worn, and the lower brake pad wear of cost in general obtains
It is faster.Friction material will replace brake block in time after use, and otherwise steel plate will be contacted directly with brake disc, eventually lose
Braking effect simultaneously damages brake disc.
Brake block needs to carry out in process of production bore operation, and existing drilling equipment is using single drill bit to brake block
It drilling, drilling efficiency is low, the production efficiency of brake block is influenced, at the same time, the existing not set dedusting of drilling equipment
Device, the dust and clast generated when so as to cause polishing influence workshop condition, are unfavorable for the health of worker.
Summary of the invention
The purpose of the present invention is to provide a kind of automotive brake padss to produce cleaning type drilling equipment, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the present invention provides the following technical solutions：
A kind of automotive brake pads production cleaning type drilling equipment, including bottom plate and lifter plate；The left and right sides of the bottom plate is symmetrical
Two blocks of side plates are fixedly installed with, top plate is fixedly installed at the top of side plate, the downside of two blocks of side plates is also rotatably equipped with the first spiral shell
Bar, the upper end of the first screw rod are fixedly installed with the 4th bevel gear, and the upside of side plate is also rotatably equipped with rotary shaft, and the one of rotary shaft
End is fixedly installed with third hand tap gear, and third hand tap gear is engaged with the 4th bevel gear；The left and right sides of the lifter plate respectively with
Two first screw flights connect, and are uniformly provided with several placing grooves on lifter plate；It is provided with rotation axis on the downside of the top plate,
The left and right sides of rotation axis is rotatablely connected with two blocks of side plates respectively, and several first cone teeth are also uniformly fixedly installed in rotation axis
Wheel, first bevel gear are located at the surface of placing groove, and the rear side that side plate is located on bottom plate is also fixedly installed with backboard, consolidate on backboard
Dingan County is equipped with several sliding sleeves, and the inner rotation of sliding sleeve is equipped with the second screw rod, and the upper end of the second screw rod is fixedly installed with the second cone
Gear, second bevel gear are engaged with first bevel gear；Slide bar is threaded on the downside of second screw rod, slide bar and sliding sleeve are sliding
Dynamic connection, and the lower end of slide bar is fixedly installed with first motor；The output end of the first motor is fixedly installed with swivel nut, swivel nut
Downside be threaded with drilling rod；The second motor is fixedly installed on the top plate, the output end of the second motor is fixedly installed with
Drive bevel gear, the left and right sides among the rotation axis are symmetrically fixedly installed with left angular wheel and right bevel gear, left angular wheel
It is engaged respectively with the left and right sides of drive bevel gear with right bevel gear；The lifter plate be located on the downside of placing groove offer it is logical
Hole, the bottom of lifter plate are also uniformly fixedly installed with several suction nozzles；The bottom plate is also fixedly installed with dust-extraction unit, dust-extraction unit
Left side be fixedly installed with exhaust fan, the air outlet of exhaust fan is connected to dust-extraction unit, and the air intake of exhaust fan passes through multi-pass pipe
It is connected to several suction nozzles；The inside of the dust-extraction unit is from left to right successively fixedly installed with coarse strainer and finer mesh.
As a further solution of the present invention：The other end of the rotary shaft is fixedly installed with knob.
As further scheme of the invention：The left and right sides of the placing groove is symmetrically opened up there are two U-type groove, U-shaped
The internal slide of slot is equipped with pressing plate.
As further scheme of the invention：The pressing plate is fixedly connected by spring with the inside of U-type groove.
As further scheme of the invention：The left angular wheel and right bevel gear are half cone gear structure.
As further scheme of the invention：The suction nozzle and through-hole correspond.
As further scheme of the invention：The suction nozzle air inlet is connected to through-hole.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention is driven by the cooperation of the second screw rod and slide bar
Drill bit moves up and down, and to drill to brake block, while driving lifting using the cooperation between the first screw rod and lifter plate
Plate moves up and down, to be adapted to the brake block of different-thickness, be additionally provided with when dust-extraction unit absorbs drilling the dust that generates and
Clast avoids pollution the environment in drilling workshop.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that automotive brake pads produces cleaning type drilling equipment.
Fig. 2 is the partial enlargement diagram in Fig. 1 at A.
Fig. 3 is the partial enlargement diagram in Fig. 1 at B.
Fig. 4 is the partial enlargement diagram in Fig. 1 at C.
In figure：1- bottom plate, 2- side plate, the first screw rod of 3-, 4- lifter plate, 5- drill bit, 6- swivel nut, 7- first motor, 8- are sliding
Bar, 9- sliding sleeve, the second screw rod of 10-, 11- rotation axis, 12- top plate, 13- first bevel gear, 14- second bevel gear, the second electricity of 15-
Machine, 16- through-hole, 17- suction nozzle, 18- multi-pass pipe, 19- dust-extraction unit, 20- finer mesh, 21- coarse strainer, 22- exhaust fan, 23-
Knob, 24- rotary shaft, 25- third hand tap gear, the 4th bevel gear of 26-, 27- drive bevel gear, 28- left angular wheel, the right cone of 29-
Gear, 30-U type groove, 31- pressing plate, 32- spring.
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.
Please refer to Fig. 1~4, in the embodiment of the present invention, a kind of automotive brake pads produces cleaning type drilling equipment, including bottom plate
1 and lifter plate 4；The left and right sides of the bottom plate 1 is symmetrically fixedly installed with two blocks of side plates 2, and the top of side plate 2 is fixedly installed with top
Plate 12, the downside of two blocks of side plates 2 are also rotatably equipped with the first screw rod 3, and the upper end of the first screw rod 3 is fixedly installed with the 4th bevel gear
26, the upside of side plate 2 is also rotatably equipped with rotary shaft 24, and one end of rotary shaft 24 is fixedly installed with third hand tap gear 25, third
Bevel gear 25 engages with the 4th bevel gear 26, and the other end of rotary shaft 24 is fixedly installed with knob 23, is driven and is revolved by knob 23
Shaft 24 rotates, to drive the rotation of the first screw rod 3；The left and right sides of the lifter plate 4 respectively with two first screw rod, 3 screw threads
Connection drives lifter plate 4 to move up when the first screw rod 3 rotates clockwise, and the first screw rod 3 drives lifter plate when rotating counterclockwise
4 move down；It is uniformly provided with several placing grooves on the lifter plate 4, the left and right sides of placing groove symmetrically opens up that there are two U-shaped
Slot 30, the internal slide of U-type groove 30 are equipped with pressing plate 31, and pressing plate 31 is fixedly connected by spring 32 with the inside of U-type groove 30, with
Just brake block is fixed, to facilitate the progress of drilling；The downside of the top plate 12 is provided with rotation axis 11, rotation axis 11
The left and right sides be rotatablely connected respectively with two blocks of side plates 2, be also uniformly fixedly installed with several first bevel gears 13 in rotation axis 11,
First bevel gear 13 is located at the surface of placing groove, and the rear side that side plate 2 is located on bottom plate 1 is also fixedly installed with backboard, on backboard
Several sliding sleeves 9 are fixedly installed with, the inner rotation of sliding sleeve 9 is equipped with the second screw rod 10, and the upper end of the second screw rod 10 is fixedly mounted
There is second bevel gear 14, second bevel gear 14 is engaged with first bevel gear 13, so that the rotation of rotation axis 11 be made to drive the second screw rod
10 rotations；The downside of second screw rod 10 is threaded with slide bar 8, and slide bar 8 is slidably connected with sliding sleeve 9, and the lower end of slide bar 8
It is fixedly installed with first motor 7, rotation band 8 upward sliding of moving slide-bar or the slide downward of the second screw rod 10；The first motor 7
Output end be fixedly installed with swivel nut 6, the downside of swivel nut 6 is threaded with drilling rod 5, so as to the dismounting and change of drilling rod 5；The top
The second motor 15 is fixedly installed on plate 12, the output end of the second motor 15 is fixedly installed with drive bevel gear 27, the rotation
The left and right sides among axis 11 is symmetrically fixedly installed with left angular wheel 28 and right bevel gear 29, left angular wheel 28 and right bevel gear 29
It is half cone gear structure, and left angular wheel 28 and right bevel gear 29 engage with the left and right sides of drive bevel gear 27 respectively, with
Just the drive rotation axis 11 of the running clearance of the second motor 15 is rotated clockwise and is rotated counterclockwise；The lifter plate 4 is located at
Through-hole 16 is offered on the downside of placing groove, the bottom of lifter plate 4 is also uniformly fixedly installed with several suction nozzles 17, suction nozzle 17 and through-hole
16 correspond, and 17 air inlet of suction nozzle is connected to through-hole 16；The bottom plate 1 is also fixedly installed with dust-extraction unit 19, dedusting dress
The left side for setting 19 is fixedly installed with exhaust fan 22, and the air outlet of exhaust fan 22 is connected to dust-extraction unit 19, the air inlet of exhaust fan 22
End is connected to by multi-pass pipe 18 with several suction nozzles 17, so that the dust clast generated when will drill removes；The dust-extraction unit 19
Inside be from left to right successively fixedly installed with coarse strainer 21 and finer mesh 20.
The present invention drives drill bit to move up and down by the cooperation of the second screw rod and slide bar, to drill to brake block,
Lifter plate is driven to move up and down using the cooperation between the first screw rod and lifter plate simultaneously, to be adapted to the brake of different-thickness
Piece is additionally provided with dust-extraction unit and absorbs the dust and clast generated when drilling, avoids pollution the environment in drilling workshop.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (7)
1. a kind of automotive brake pads produces cleaning type drilling equipment, which is characterized in that including bottom plate（1）And lifter plate（4）；It is described
Bottom plate（1）The left and right sides be symmetrically fixedly installed with two blocks of side plates（2）, side plate（2）Top be fixedly installed with top plate（12）, two
Block side plate（2）Downside be also rotatably equipped with the first screw rod（3）, the first screw rod（3）Upper end be fixedly installed with the 4th bevel gear
（26）, side plate（2）Upside be also rotatably equipped with rotary shaft（24）, rotary shaft（24）One end be fixedly installed with third hand tap gear
（25）, third hand tap gear（25）With the 4th bevel gear（26）Engagement；The lifter plate（4）The left and right sides respectively with two first
Screw rod（3）It is threadedly coupled, lifter plate（4）On be uniformly provided with several placing grooves；The top plate（12）Downside be provided with rotation
Axis（11）, rotation axis（11）The left and right sides respectively with two blocks of side plates（2）Rotation connection, rotation axis（11）It is upper also uniformly to fix peace
Equipped with several first bevel gears（13）, first bevel gear（13）Positioned at the surface of placing groove, bottom plate（1）It is upper to be located at side plate（2）
Rear side be also fixedly installed with backboard, several sliding sleeves are fixedly installed on backboard（9）, sliding sleeve（9）Inner rotation be equipped with
Two screw rods（10）, the second screw rod（10）Upper end be fixedly installed with second bevel gear（14）, second bevel gear（14）With the first cone
Gear（13）Engagement；Second screw rod（10）Downside be threaded with slide bar（8）, slide bar（8）With sliding sleeve（9）Sliding connects
It connects, and slide bar（8）Lower end be fixedly installed with first motor（7）；The first motor（7）Output end be fixedly installed with swivel nut
（6）, swivel nut（6）Downside be threaded with drilling rod（5）；The top plate（12）On be fixedly installed with the second motor（15）, second
Motor（15）Output end be fixedly installed with drive bevel gear（27）, the rotation axis（11）The intermediate left and right sides is symmetrically fixed
Left angular wheel is installed（28）With right bevel gear（29）, left angular wheel（28）With right bevel gear（29）Respectively with drive bevel gear
（27）The left and right sides engagement；The lifter plate（4）Through-hole is offered on the downside of placing groove（16）, lifter plate（4）Bottom
Portion is also uniformly fixedly installed with several suction nozzles（17）；The bottom plate（1）Also it is fixedly installed with dust-extraction unit（19）, dust-extraction unit
（19）Left side be fixedly installed with exhaust fan（22）, exhaust fan（22）Air outlet and dust-extraction unit（19）Connection, exhaust fan
（22）Air intake pass through multi-pass pipe（18）With several suction nozzles（17）Connection；The dust-extraction unit（19）Inside from left to right according to
It is secondary to be fixedly installed with coarse strainer（21）And finer mesh（20）.
2. automotive brake pads according to claim 1 produces cleaning type drilling equipment, which is characterized in that the rotary shaft
（24）The other end be fixedly installed with knob（23）.
3. automotive brake pads according to claim 1 produces cleaning type drilling equipment, which is characterized in that the placing groove
The left and right sides is symmetrically opened up there are two U-type groove（30）, U-type groove（30）Internal slide pressing plate is installed（31）.
4. automotive brake pads according to claim 3 produces cleaning type drilling equipment, which is characterized in that the pressing plate（31）
Pass through spring（32）With U-type groove（30）Inside be fixedly connected.
5. automotive brake pads according to claim 1 produces cleaning type drilling equipment, which is characterized in that the left angular wheel
（28）With right bevel gear（29）It is half cone gear structure.
6. automotive brake pads according to claim 1 produces cleaning type drilling equipment, which is characterized in that the suction nozzle（17）
With through-hole（16）It corresponds.
7. automotive brake pads according to claim 6 produces cleaning type drilling equipment, which is characterized in that the suction nozzle（17）
Air inlet and through-hole（16）Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810623386.XA CN108907275A (en) | 2018-06-15 | 2018-06-15 | A kind of automotive brake pads production cleaning type drilling equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810623386.XA CN108907275A (en) | 2018-06-15 | 2018-06-15 | A kind of automotive brake pads production cleaning type drilling equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108907275A true CN108907275A (en) | 2018-11-30 |
Family
ID=64421433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810623386.XA Pending CN108907275A (en) | 2018-06-15 | 2018-06-15 | A kind of automotive brake pads production cleaning type drilling equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108907275A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109530754A (en) * | 2019-01-23 | 2019-03-29 | 枣阳神虎摩擦材料有限责任公司 | A kind of braking full piece drilling machine |
| CN109940195A (en) * | 2019-04-18 | 2019-06-28 | 杭州初始服饰有限公司 | A kind of titanium alloy drilling device |
| CN110948004A (en) * | 2019-12-06 | 2020-04-03 | 日照市伟业工具股份有限公司 | Multi-point drilling device for building template machining |
| CN111069656A (en) * | 2020-01-06 | 2020-04-28 | 王世祥 | Cutting machine tool capable of simultaneously processing multiple automobile bearings |
| CN111195738A (en) * | 2020-01-14 | 2020-05-26 | 江苏感恩机械有限公司 | Quick positioning and punching device for intelligent electronic watch production |
| CN111958002A (en) * | 2020-07-24 | 2020-11-20 | 龙萍 | Rivet hole perforating device of handle of a knife |
| CN112705750A (en) * | 2020-12-16 | 2021-04-27 | 江西昌浩实业有限公司 | Processing device for hinge of aluminum alloy plastic-steel door and window |
| CN113232007A (en) * | 2019-12-05 | 2021-08-10 | 舒适 | Novel equipment for picking and placing hardware and using method thereof |
| CN117884681A (en) * | 2024-03-14 | 2024-04-16 | 沈阳汉威机械制造有限公司 | Drilling equipment for oil holes in outer tooth sockets of large gear rings |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109530754A (en) * | 2019-01-23 | 2019-03-29 | 枣阳神虎摩擦材料有限责任公司 | A kind of braking full piece drilling machine |
| CN109940195A (en) * | 2019-04-18 | 2019-06-28 | 杭州初始服饰有限公司 | A kind of titanium alloy drilling device |
| CN113232007A (en) * | 2019-12-05 | 2021-08-10 | 舒适 | Novel equipment for picking and placing hardware and using method thereof |
| CN110948004A (en) * | 2019-12-06 | 2020-04-03 | 日照市伟业工具股份有限公司 | Multi-point drilling device for building template machining |
| CN111069656A (en) * | 2020-01-06 | 2020-04-28 | 王世祥 | Cutting machine tool capable of simultaneously processing multiple automobile bearings |
| CN111195738A (en) * | 2020-01-14 | 2020-05-26 | 江苏感恩机械有限公司 | Quick positioning and punching device for intelligent electronic watch production |
| CN111958002A (en) * | 2020-07-24 | 2020-11-20 | 龙萍 | Rivet hole perforating device of handle of a knife |
| CN111958002B (en) * | 2020-07-24 | 2023-10-31 | 浙江能伟科技有限公司 | Rivet hole perforating device of knife handle |
| CN112705750A (en) * | 2020-12-16 | 2021-04-27 | 江西昌浩实业有限公司 | Processing device for hinge of aluminum alloy plastic-steel door and window |
| CN117884681A (en) * | 2024-03-14 | 2024-04-16 | 沈阳汉威机械制造有限公司 | Drilling equipment for oil holes in outer tooth sockets of large gear rings |
| CN117884681B (en) * | 2024-03-14 | 2024-05-10 | 沈阳汉威机械制造有限公司 | Drilling equipment for oil holes in outer tooth sockets of large gear rings |
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Application publication date: 20181130 |
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| RJ01 | Rejection of invention patent application after publication |