CN109759610A - A kind of Telescopic type reverse scraper - Google Patents
A kind of Telescopic type reverse scraper Download PDFInfo
- Publication number
- CN109759610A CN109759610A CN201910255112.4A CN201910255112A CN109759610A CN 109759610 A CN109759610 A CN 109759610A CN 201910255112 A CN201910255112 A CN 201910255112A CN 109759610 A CN109759610 A CN 109759610A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- cutter hub
- knife bar
- tool apron
- telescopic type
- 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.)
- Granted
Links
- 230000017105 transposition Effects 0.000 claims abstract description 17
- 238000006243 chemical reaction Methods 0.000 claims description 33
- 229910000831 Steel Inorganic materials 0.000 claims description 30
- 239000010959 steel Substances 0.000 claims description 30
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 208000008797 situs inversus Diseases 0.000 abstract description 2
- 208000014903 transposition of the great arteries Diseases 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 238000004886 process control Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Shearing Machines (AREA)
- Drilling Tools (AREA)
Abstract
The present invention relates to a kind of Telescopic type reverse scrapers, including cutter hub, the knife bar that is fixedly connected with cutter hub and the tool apron that knife bar end is set, the knife bar end sleeve is equipped with sleeve, jack is provided between the sleeve and cutter hub, the jack includes driving assembly, transposition component between driving assembly and cutter hub is set and elastic parts is set between driving assembly and cutter hub, the driving component is slided along knife bar with moving sleeve and controls the opening of tool apron by sleeve or pack up, the transposition work for cooperating elastic parts to complete transposition component during the driving component is mobile, make at transposition switch between components to each position of the corresponding each state of tool apron;The present invention overcomes Telescopic cutter, structure is complicated, and maintenance cost is high, the problem of stability in use difference and inconvenient victory.
Description
Technical field
The present invention relates to metal cutting process technical field more particularly to a kind of Telescopic type reverse scrapers.
Background technique
The anti-boring processing of reverse boring cutter has been widely used in machining field, when processing the via size at the part back side,
The manufacturing procedure of one of reverse side can be saved using reverse boring cutter, to promote processing efficiency;The reverse boring cutter tool that the country produces at present,
Majority is to be enable knife bar is eccentric to enter in hole in piece part using eccentric structure, reversely processed macropore.This structure has very big office
It is sex-limited, such as structure limitation, process that too big hole, the rigidity of knife bar are poor plus man-hour requirement needs process control bias
Into and out of cutter etc., processing efficiency is low.
Authorization Notice No. is a Chinese invention patent of CN106041220B, discloses one kind and adds for reverse side stepped hole
The counter of work scrapes cutter, and specifically disclosing includes: cutter hub;Anti- scraper head assembly comprising a tool apron and with its lateral wall match
The sliding sleeve of conjunction, is arranged groove on tool apron, and anti-scraper head be arranged in a manner of it can be overturn along predetermined direction and stretch out groove it is recessed
One is provided in slot, on sliding sleeve in its sliding process for the opening of anti-scraper head stretching;Replace component, is arranged in cutter hub
Between anti-scraper head assembly, to realize that cutter head stretches out the state switching of groove by driving sliding sleeve to slide along desired trajectory,
So that anti-scraper head assembly can pass through hole to be processed in process;
It has the following problems: this kind modular construction that replaces is complex, and cost of manufacture is high and the stability that uses is poor, this
Outer its wear greatly during operation, and resistance is larger, inconvenient victory and need to be regularly maintained.
Summary of the invention
The purpose of the present invention is in view of the deficiencies of the prior art, providing a kind of Telescopic type reverse scraper, turned by setting
Set and steel ball are changed, cooperation opens up arc groove on cutter hub, makes the supporting drive set that can pass through workpiece surface during passing in and out knife
Cylinder slides and slides into the locking that each state is realized in designated position in arc groove by steel ball, overcomes Telescopic cutter structure
Complexity, maintenance cost is high, the problem of stability in use difference and inconvenient victory.
A kind of Telescopic type reverse scraper, including cutter hub, the knife bar being fixedly connected with cutter hub and the knife that knife bar end is arranged in
Seat, the knife bar end sleeve are equipped with sleeve, and jack is provided between the sleeve and cutter hub, and the jack includes driving
Dynamic component, the transposition component being arranged between driving assembly and cutter hub and the setting elastic group between driving assembly and cutter hub
Part, the driving component are slided along knife bar with moving sleeve and control the opening of tool apron by sleeve or pack up, the driving group
The transposition work for cooperating elastic parts to complete transposition component during part is mobile keeps transposition switch between components each to corresponding tool apron
At each position of state.
As an improvement, the driving component includes the conversion sleeve being set on the cutter hub, the conversion sleeve and sleeve it
Between be fixedly connected, and the diameter of the conversion sleeve be greater than sleeve diameter.
As an improvement, the transposition component includes the rotating ring being rotatably set on cutter hub, opened up on the rotating ring
There is steel-ball groove, steel ball is provided in the steel-ball groove, the annular for cooperating with steel ball is offered on the inner wall of the conversion sleeve
Slot, offers arc groove in the outer circle of the cutter hub, the steel ball with rotating ring it is mobile during steel ball along arc groove
Track it is mobile.
As an improvement, the elastic parts includes the pressure spring being set on cutter hub, the mistake that the conversion sleeve slides to the right
Compression press spring in journey.
As an improvement, the arc groove includes a sections, b sections, c sections and d sections, the steel ball by start position after a sections to
It completes to return sword up to position of returning sword, completion tool apron closing in closed position is reached after b sections by returning sword position, by closed position through c
Reach after section and complete out knife at cutter position out, then is reset to starting point completion tool apron opening through d sections by going out cutter position.
As an improvement, being to be detachably fixed connection between the conversion sleeve and sleeve.
As an improvement, being detachably connected between the conversion sleeve and sleeve by nut.
As an improvement, the cutter hub top is equipped with location hole, the knife bar shank can be placed in the positioning hole, be placed in knife
Cutter hub is fixedly connected by the lock-screw in body locking hole with knife bar.
As an improvement, the knife bar front end is equipped with tool apron slot, the knife bar front end is equipped with pin shaft hole, and the tool apron passes through pin
Axis is fixed in the tool apron slot, and the torsional spring for driving tool apron to open is provided on the tool apron.
As an improvement, being equipped with keyway on the knife bar, the flat key lock-screw being placed in keyway fixes flat key and knife bar
Connection.
As another improvement, the outside on the cutter hub in pressure spring is also arranged with protective case.
The present embodiment the utility model has the advantages that
1, passing through setting conversion sleeve in the present invention and steel ball is set on conversion sleeve, cooperation opens up arc groove on cutter hub,
It is slided in arc groove so that can slide by the supporting drive sleeve of workpiece surface during passing in and out knife and pass through steel ball
The locking of each state is realized to designated position, simple and compact for structure, rigidity is more preferable, when processing without process control bias into
Knife, processing efficiency are higher.
2, by the way that, by nut, so that each component processing is easy, dismounting is just between setting conversion sleeve and sleeve in the present invention
Victory, it is convenient for safeguarding.
In conclusion the equipment has simple and ingenious structure, stability is high, dismounts the advantages that convenient, is particularly suitable for gold
Belong to machining boring cutter technical field.
Detailed description of the invention
It, below will be to required use in embodiment description for the clearer technical solution for illustrating the embodiment of the present invention
Attached drawing be briefly described, it should be apparent that, drawings discussed below is only some embodiments of the present invention, for ability
For the those of ordinary skill in domain, without creative efforts, it is attached to can also be obtained according to these attached drawings other
Figure.
Partial sectional schematic diagram when Fig. 1 is Telescopic type reverse scraper opening state;
Partial sectional schematic diagram when Fig. 2 is Telescopic type reverse scraper closed state;
Fig. 3 is enlarged diagram at the A of Fig. 1;
Fig. 4 is the cross-sectional view of the transposition component placement of Telescopic type reverse scraper;
The cutter hub and the cross-sectional structure schematic diagram at knife bar link position that Fig. 5 is Telescopic type reverse scraper;
Fig. 6 is the track schematic diagram of arc groove on cutter hub;
Fig. 7 is that knife bar penetrates the status diagram that nut in workpiece hole is resisted against on workpiece end face;
Fig. 8 is the status diagram that knife bar penetrates that tool apron is opened in workpiece hole;
Fig. 9 is the status diagram of Telescopic type reverse scraper processed to workpiece inner face;
Figure 10 is status diagram when Telescopic type reverse scraper is returned sword.
Specific embodiment
Technical solution in the embodiment of the present invention is clearly and completely illustrated with reference to the accompanying drawing.
Embodiment one
As shown in Figures 1 to 10, a kind of Telescopic type reverse scraper, including cutter hub 1 and cutter hub 1 are provided in the present embodiment
The knife bar 2 that is fixedly connected and the tool apron 3 that 2 end of knife bar is arranged in, 2 end sleeve of knife bar are equipped with sleeve 4, the sleeve 4
Jack 5 is provided between cutter hub 1, the jack 5 includes driving assembly 51, is arranged in driving assembly 51 and cutter hub
Transposition component 52 and the setting elastic parts 53 between driving assembly 51 and cutter hub 1 between 1, the driving component 51 drive
Sleeve 4 slides along knife bar 2 and controls the opening of tool apron 3 by sleeve 4 or pack up, during the driving component 51 is mobile
Cooperate elastic parts 53 to complete the transposition work of transposition component 52, transposition component 52 is made to switch to each state of corresponding tool apron 3
At each position.
Further, the driving component 51 includes the conversion sleeve 511 being set on the cutter hub 1, the conversion sleeve 511
It is fixedly connected between sleeve 4, and the diameter of the conversion sleeve 511 is greater than the diameter of sleeve 4.
Further, the transposition component 52 includes the rotating ring 521 being rotatably set on cutter hub 1, the rotating ring
Steel-ball groove 522 is offered on 521, and steel ball 523 is provided in the steel-ball groove 522, is offered on the inner wall of the conversion sleeve 511
Annular groove 524 for cooperating with steel ball 523, offers arc groove 11 in the outer circle of the cutter hub 1, the steel ball 523 with
Steel ball 523 is moved along the track of arc groove 11 during rotating ring 521 is mobile.
Further, the elastic parts 53 includes the pressure spring 531 being set on cutter hub 1, and the conversion sleeve 511 is to the right
Compression press spring 531 during sliding.
Further, the arc groove 11 includes a section 10, b section 20, c section 30 and d section 40, and the steel ball 523 is by starting point
100 positions reach position 200 of returning sword after a section 10 and complete to return sword, and by returning sword, position 200 reaches closed position 300 after b section 20
Place completes tool apron and closes, and reaches cutter position 400 out after c section 30 by closed position 300 and completes out knife, then by going out cutter position
400, which are reset to starting point 100 through d section 40, completes tool apron opening.
In the present embodiment, steel ball is set by setting conversion sleeve and on conversion sleeve, cooperation opens up arc groove on cutter hub,
It is slided in arc groove so that can slide by the supporting drive sleeve of workpiece surface during passing in and out knife and pass through steel ball
The locking of each state is realized to designated position, simple and compact for structure, rigidity is more preferable, when processing without process control bias into
Knife, processing efficiency are higher.
Further, 1 top of cutter hub is equipped with location hole, and 2 shank of knife bar can be placed in the positioning hole, be placed in
Cutter hub 1 is fixedly connected by the lock-screw 12 in 1 locking hole of cutter hub with knife bar 2.
Further, 2 front end of knife bar is equipped with tool apron slot 21, and 2 front end of knife bar is equipped with pin shaft hole 22, the tool apron
3 are fixed in the tool apron slot 21 by pin shaft 23, and the torsional spring 31 for driving tool apron 3 to open is provided on the tool apron 3.
Further, be equipped with keyway 24 on the knife bar 2, be placed in flat key lock-screw 25 in keyway 24 by flat key 26 with
Knife bar 2 is fixedly connected, this kind connection peace turn mode keep structure more stable and dismount it is convenient.
Further, be also arranged with protective case 13 in the outside of pressure spring 531 on the cutter hub 1, for pressure spring 531 into
It is limited while row protection.
Embodiment two
As shown in Figure 1, wherein using attached drawing mark corresponding with embodiment one with component identical or corresponding in embodiment one
Note hereafter only describes the distinctive points with embodiment one for simplicity.The difference of the embodiment two and embodiment one exists
In: further, connection is detachably fixed between the conversion sleeve 511 and sleeve 4.
Further, it is detachably connected between the conversion sleeve 511 and sleeve 4 by nut 6.
Here, by the way that, by nut, so that each component processing is easy, it is convenient to dismount, just between setting conversion sleeve and sleeve
In maintenance.
The course of work:
The use of preceding guarantee tool apron 3 is being cutter head closed state shown in Fig. 2, is then protruding into knife bar 2 in the hole of processing part
As shown in Figure 7, so that 6 end face of nut is continued feed, at this time behind 6 end face of nut and part end face contact close to workpiece surface
Nut 6 will drive the steel ball 523 in conversion sleeve 511, rotating ring 521 and conversion sleeve 511, make steel ball 523 in 1 arc groove 11 of cutter hub
Interior sliding, when the steel ball 523 in rotating ring 521 be moved to it is shown in fig. 6 go out cutter position after, exit further back, when rollback due to
The elastic force effect of pressure spring 531 between conversion sleeve 511 and cutter hub 1, conversion sleeve 511 and steel ball 523 can along cutter hub 1 arc groove to
Upper movement, until steel ball steel ball position when being moved to tool apron opening state shown in fig. 6, the tool apron slot of sleeve 4 and knife bar 2 at this time
Tool apron groove location it is consistent, due on tool apron 3 torsional spring 31 elastic force effect, open cutter head.Cutter head open after as shown in figure 8,
Then knife bar 2 is made to withdraw certain distance again, sticking on cutter head on the face to be processed of part can start to process part such as Fig. 9 institute
Show;After part completion of processing, knife bar is moved forward again, makes 6 end face of nut close to workpiece surface, as shown in Figure 10, work as spiral shell
After 6 end face of cap is contacted with part end face, continue feed, nut 6 will drive the steel ball 523 in conversion sleeve 511 and conversion sleeve at this time
Arc groove along cutter hub moves, when steel ball 523 be moved to it is shown in fig. 6 return sword position after, exit further back, by the bullet of pressure spring
Steel ball position when steel ball is moved to tool apron closed state shown in fig. 6 by power, at this time the tool apron slot of the tool apron slot of sleeve and knife bar
There is a dislocation, to completely enclosing tool apron to the tool apron slot of knife bar, knife bar can be exited inner hole of workpiece at this time.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Subject to enclosing.
Claims (10)
1. a kind of Telescopic type reverse scraper including cutter hub (1), the knife bar (2) being fixedly connected with cutter hub (1) and is arranged in knife bar
(2) tool apron (3) of end, knife bar (2) end sleeve are equipped with sleeve (4), it is characterised in that: the sleeve (4) and cutter hub (1)
Between be provided with jack (5), the jack (5) include driving assembly (51), be arranged in driving assembly (51) and knife
Transposition component (52) and setting elastic parts (53), the drive between driving assembly (51) and cutter hub (1) between body (1)
Dynamic component (51) are slided along knife bar (2) with moving sleeve (4) and control the opening of tool apron (3) by sleeve (4) or pack up, described
The transposition work of transposition component (52) is completed in cooperation elastic parts (53) during driving assembly (51) is mobile, makes the component that replaces
(52) it switches at each position of corresponding tool apron (3) each state.
2. a kind of Telescopic type reverse scraper as described in claim 1, it is characterised in that: the driving component (51) includes being set in
Conversion sleeve (511) on the cutter hub (1) is fixedly connected between the conversion sleeve (511) and sleeve (4), and the conversion sleeve
(511) diameter is greater than the diameter of sleeve (4).
3. a kind of Telescopic type reverse scraper as claimed in claim 2, it is characterised in that: the transposition component (52) includes that can be rotated
The rotating ring (521) being set on cutter hub (1) offers steel-ball groove (522), the steel-ball groove on the rotating ring (521)
(522) it is provided with steel ball (523), offers on the inner wall of the conversion sleeve (511) for the annular with steel ball (523) cooperation in
Slot (524) offers arc groove (11) in the outer circle of the cutter hub (1), and the steel ball (523) is mobile with rotating ring (521)
During steel ball (523) it is mobile along the track of arc groove (11).
4. a kind of Telescopic type reverse scraper as claimed in claim 2, it is characterised in that: the elastic parts (53) includes being set in
Pressure spring (531) on cutter hub (1), compression press spring (531) during the conversion sleeve (511) is slided to the right.
5. a kind of Telescopic type reverse scraper as claimed in claim 3, it is characterised in that: the arc groove (11) include a sections (10),
B sections (20), c sections (30) and d sections (40), the steel ball (523) reach position of returning sword by starting point (100) position after a sections (10)
It sets (200) to complete to return sword, reaches closed position (300) after b sections (20) by position of returning sword (200) and complete tool apron closing, by
Closed position (300) reaches after c sections (30) completes out knife at cutter position (400) out, then by going out cutter position (400) through d sections
(40) starting point (100) are reset to and complete tool apron opening.
6. a kind of Telescopic type reverse scraper as claimed in claim 2, it is characterised in that: the conversion sleeve (511) and sleeve (4) it
Between to be detachably fixed connection.
7. a kind of Telescopic type reverse scraper as claimed in claim 6, it is characterised in that: the conversion sleeve (511) and sleeve (4) it
Between be detachably connected by nut (6).
8. a kind of Telescopic type reverse scraper as described in claim 1, it is characterised in that: cutter hub (1) top is equipped with location hole,
Knife bar (2) shank can be placed in the positioning hole, be placed in lock-screw (12) in cutter hub (1) locking hole for cutter hub (1)
It is fixedly connected with knife bar (2).
9. a kind of Telescopic type reverse scraper as described in claim 1, it is characterised in that: knife bar (2) front end is equipped with tool apron slot
(21), knife bar (2) front end is equipped with pin shaft hole (22), and the tool apron (3) is fixed on the tool apron slot by pin shaft (23)
(21) in, the torsional spring (31) for driving tool apron (3) to open is provided on the tool apron (3).
10. a kind of Telescopic type reverse scraper as described in claim 1, it is characterised in that: be equipped with keyway on the knife bar (2)
(24), flat key (26) is fixedly connected by the flat key lock-screw (25) being placed in keyway (24) with knife bar (2).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910255112.4A CN109759610B (en) | 2019-04-01 | 2019-04-01 | Telescopic reverse scraper |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910255112.4A CN109759610B (en) | 2019-04-01 | 2019-04-01 | Telescopic reverse scraper |
Publications (2)
Publication Number | Publication Date |
---|---|
CN109759610A true CN109759610A (en) | 2019-05-17 |
CN109759610B CN109759610B (en) | 2024-03-19 |
Family
ID=66460276
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910255112.4A Active CN109759610B (en) | 2019-04-01 | 2019-04-01 | Telescopic reverse scraper |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN109759610B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110480099A (en) * | 2019-07-17 | 2019-11-22 | 苏州名匠阀门设备有限公司 | A kind of process tool and processing method for workpiece reverse side counterbore |
CN114289764A (en) * | 2022-01-19 | 2022-04-08 | 航天精工股份有限公司 | Combined type cutter for processing blind end step hole |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4579488A (en) * | 1984-02-21 | 1986-04-01 | Griffin James W | Boring bar assembly |
EP0475152A2 (en) * | 1990-09-04 | 1992-03-18 | Tsugami Corporation | Lathe |
CN1485173A (en) * | 2003-07-16 | 2004-03-31 | 兰州理工大学 | Reversed countersinking-cutter for digital control processing |
CN106041220A (en) * | 2016-06-23 | 2016-10-26 | 绵阳市绵工工具有限公司 | Reverse scraping tool for machining reverse step hole |
CN107639246A (en) * | 2017-11-02 | 2018-01-30 | 北京沃尔德金刚石工具股份有限公司 | A kind of cutter bindiny mechanism and the cutter with the bindiny mechanism |
CN207806648U (en) * | 2017-12-29 | 2018-09-04 | 松德刀具(长兴)科技有限公司 | A kind of automatic dynamic balance boring cutter |
CN209664325U (en) * | 2019-04-01 | 2019-11-22 | 松德刀具(长兴)科技有限公司 | A kind of Telescopic type reverse scraper |
-
2019
- 2019-04-01 CN CN201910255112.4A patent/CN109759610B/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4579488A (en) * | 1984-02-21 | 1986-04-01 | Griffin James W | Boring bar assembly |
EP0475152A2 (en) * | 1990-09-04 | 1992-03-18 | Tsugami Corporation | Lathe |
CN1485173A (en) * | 2003-07-16 | 2004-03-31 | 兰州理工大学 | Reversed countersinking-cutter for digital control processing |
CN106041220A (en) * | 2016-06-23 | 2016-10-26 | 绵阳市绵工工具有限公司 | Reverse scraping tool for machining reverse step hole |
CN107639246A (en) * | 2017-11-02 | 2018-01-30 | 北京沃尔德金刚石工具股份有限公司 | A kind of cutter bindiny mechanism and the cutter with the bindiny mechanism |
CN207806648U (en) * | 2017-12-29 | 2018-09-04 | 松德刀具(长兴)科技有限公司 | A kind of automatic dynamic balance boring cutter |
CN209664325U (en) * | 2019-04-01 | 2019-11-22 | 松德刀具(长兴)科技有限公司 | A kind of Telescopic type reverse scraper |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110480099A (en) * | 2019-07-17 | 2019-11-22 | 苏州名匠阀门设备有限公司 | A kind of process tool and processing method for workpiece reverse side counterbore |
CN110480099B (en) * | 2019-07-17 | 2024-02-02 | 苏州名匠阀门设备有限公司 | Machining tool and machining method for counter bore on back surface of workpiece |
CN114289764A (en) * | 2022-01-19 | 2022-04-08 | 航天精工股份有限公司 | Combined type cutter for processing blind end step hole |
Also Published As
Publication number | Publication date |
---|---|
CN109759610B (en) | 2024-03-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN209664325U (en) | A kind of Telescopic type reverse scraper | |
CN109759610A (en) | A kind of Telescopic type reverse scraper | |
DE19726383A1 (en) | Power tool | |
CN208020139U (en) | Hydraulic work device | |
CN204623396U (en) | A kind of accumulating type safety hammer | |
CN105436562B (en) | Household handheld electric drill | |
CN101697402B (en) | Interlocking device of breaker handcart advancing mechanism | |
US10150177B2 (en) | Rotary changer | |
EP3257613B1 (en) | Rotating replacement device | |
US4178790A (en) | Roll-through cold forming apparatus | |
EP1767296B1 (en) | Locking drill chuck | |
DE2408362A1 (en) | IMPACT DRILL | |
CN201786174U (en) | Telescopic spring-hidden hand lever of safety cabinet | |
CN204397455U (en) | A kind of cutter platform reinforcement locking device | |
EP2140466B1 (en) | Electric switch | |
CN114876284B (en) | Lock mainly driven by teeth | |
CN109798291A (en) | A kind of fast assembling-disassembling bolt | |
CN206200161U (en) | A kind of Self-locking drill-chuck | |
CN209908142U (en) | Lock set | |
CN217666654U (en) | Straight shank tungsten steel fixed point bores | |
CN201783670U (en) | Inner percussion electric drill | |
CN108979358A (en) | A kind of power distribution cabinet smart lock | |
CN2827580Y (en) | Numerical control press turret die patrix assembling device | |
RU209267U1 (en) | Jackknife | |
CN206366814U (en) | The processing unit (plant) of lock cylinder lock body process equipment |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |