CN203293270U - Length adjusting device of drill bit - Google Patents
Length adjusting device of drill bit Download PDFInfo
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- CN203293270U CN203293270U CN2013202095473U CN201320209547U CN203293270U CN 203293270 U CN203293270 U CN 203293270U CN 2013202095473 U CN2013202095473 U CN 2013202095473U CN 201320209547 U CN201320209547 U CN 201320209547U CN 203293270 U CN203293270 U CN 203293270U
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- chewed
- detent mechanism
- bradawl
- depression bar
- brace table
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Abstract
The utility model provides a length adjusting device of a drill bit. The length adjusting device comprises a supporting table and a locating mechanism arranged on the supporting table. The locating mechanism is used for locating a drill bit middle sleeve ring and/or blade arranged on the supporting table. The length adjusting device of the drill bit facilitates drill bit length adjustment, and is simple in structure and convenient to operate.
Description
Technical field
The utility model relates to a kind of brill and chews length adjustment device.
Background technology
Along with the development of pcb board (Printed Circuit Board, i.e. printed circuit board (PCB)) technology, the penetration rate of numerical control PCB mechanical drilling machine (hereinafter to be referred as rig) is more and more faster, and efficiency is also more and more higher.
At present, the fastest the highest penetration rate of rig has reached 450-500 per minute hole on the market.Rig all disposes automatic tool changer (following alleged " cutter " or cutter namely refer to bore chew) and survey cutter system basically.In actual process, in order to improve operating efficiency, the operative employee can be in advance with blade row dissimilar in tool magazine order well, to facilitate tool changing in operation.But when tool changing, for preventing small opening or automatic tool changer, take the problem of cutter (operative employee is unsuccessful by cutter with cutter spacing misarrangement or operative employee in tool magazine) by mistake, need application to survey the cutter system and carry out the measurement in cutter length and cutter footpath.
According to the PCB usage of trade, above-described " cutter " namely represents to bore and chews, and bores to chew usually to be divided into bradawl and to chew with wammel and chew two classes.Wherein, bradawl is chewed and is chewed less than the brill of handle of a knife diameter for the blade diameter, and wammel is chewed and chewed greater than the brill of handle of a knife diameter for the blade diameter.
Fig. 1 and Fig. 2 are respectively bradawl and chew the structural representation of chewing with wammel.As described in Figure 1, bradawl is chewed and is mainly comprised blade 1 and handle of a knife 4, connects as one by conus portion 2 between described blade 1 and handle of a knife 4, is arranged with the collar 3 on handle of a knife 4, and the collar 3 is a kind of annulus of being made by PP material (Polypropylene, i.e. polypropylene (PP)); As shown in Figure 2, wammel is chewed and is mainly comprised blade 1 and handle of a knife 4, and described blade 1 and handle of a knife 4 connect as one, and are arranged with equally the collar 3 on handle of a knife 4.Wherein, the collar 3 comprises two parallel surfaces, i.e. collar upper surface 32 and collar lower surface 31, and described collar upper surface 32 is the surface away from blade 1, collar lower surface 31 is the surface near blade 1.Described cutter length refers to the blade top to the length of collar upper surface 32, below said brill chew length to be cutter long.
In the rig field; the rig of same model; the cutter that uses is long must unanimously (allow certain margin of tolerance), otherwise rig is surveyed the cutter system when detecting the long and cutter footpath parameter of cutter, will occur chewing also autostop of the too short and warning of length because the brill that detects is chewed the long or brill of length.Combined influence due to many factors; no matter be adopt manually upper ring inserter or adopt automatically upper ring inserter (usually; brill is chewed producer or brill and is chewed that to turn over that brill that mill producer sends here chews be not to be with the collar); rig is being measured cutter when long, often there will be above-mentioned survey the cutter system because of rig and the phenomenon of the long long or long too short shutdown of reporting to the police of cutter of cutter detected.Therefore, the operative employee must be nearby the fine setting of operation field tool setting progress row (transfer long or transfer short), and common method for trimming is: the operative employee adopts glue hammer or iron hammer to change the position of the collar on handle of a knife, thereby it is long to change cutter.Certainly, on also can placing manually in production scene, to adjust cutter long for ring inserter.Therefore, need to overlap ring apparatus in the on-the-spot outfit of rig, cause production cost to increase, and make the production rate of transferring of equipment very low.
The method of operating that the at present row of tool setting progress in the industry fine setting is adopted usually is: utilize examination board platform before rig, put the pallet edge or punch on its structure, then by side strike the collar or handle of a knife, that blade changes cutter is long, so that rig survey cutter system can be passed through.The method of this kind tool setting progress row fine setting exists following problem: the one, put pallet or examination board edge of table along being generally stainless steel, cost is high, and the operative employee is easy to damage and puts pallet or examination board edge of table edge in carrying out real operation, make and put pallet and the examination board platform is always riddled with gaping wounds, cause the difficulty of production scene management; The 2nd, utilize and to put pallet or examination board platform to adjust cutter long very inconvenient, to diameter, be particularly that cutter progress row that bradawl below 1.0mm is chewed (this kind bradawl is chewed to account for to bore and chewed more than 95% of consumption) is while regulating, to chew diameter little due to this kind bradawl, be easy to be touched disconnected, artificially increased breaking of rod rate, also increased production cost and made inefficiency simultaneously.
The utility model content
Technical problem to be solved in the utility model is for above shortcomings in prior art, provide a kind of be convenient to regulate bore the brill of chewing length and chew length adjustment device, this apparatus structure is simple and easy to operate.
a kind of technical scheme that solution the utility model technical problem adopts is, this brill is chewed length adjustment device and is comprised brace table and the detent mechanism that is arranged on described brace table, the position that described detent mechanism is used for chewing being placed on brill on brace table the collar and/or blade positions, described brace table comprises table top and a plurality of sides that join with described table top, described detent mechanism comprises the first detent mechanism that positions for the position of bradawl being chewed the collar, described the first detent mechanism comprises draw-in groove, described draw-in groove is opened on the table top of described brace table and to downward-extension, the width of draw-in groove is chewed the diameter of middle handle of a knife more than or equal to described bradawl, the degree of depth of draw-in groove is chewed the distance of middle blade top to collar lower surface greater than described bradawl.
Preferably, the width range of described draw-in groove is 3.175-3.5mm, and the depth bounds of described draw-in groove is 4.5-5.5mm.
the another kind of technical scheme that solution the utility model technical problem adopts is, this brill is chewed length adjustment device and is comprised brace table and the detent mechanism that is arranged on described brace table, the position that described detent mechanism is used for chewing being placed on brill on brace table the collar and/or blade positions, described brace table comprises table top and a plurality of sides that join with described table top, described detent mechanism comprises for wammel being chewed with bradawl chews the second detent mechanism that the position of the collar positions, described the second detent mechanism comprises draw-in groove and storage tank, described draw-in groove is opened on the table top of described brace table and to downward-extension, thereby described storage tank is opened in a side of described brace table and extends internally and is communicated with the bottom of described draw-in groove, the width of draw-in groove is chewed greater than described wammel or bradawl is chewed the diameter of middle handle of a knife, the degree of depth of draw-in groove is less than or equal to described wammel and chews the distance of middle blade bottom to collar lower surface, the width of storage tank is chewed the diameter of middle blade more than or equal to described wammel.
Preferably, the width range of described draw-in groove is 3.175-3.5mm, and the total depth scope of described storage tank and draw-in groove is 4.5-5.5mm.
More preferably, also comprise in described detent mechanism for wammel being chewed or bradawl is chewed the 3rd detent mechanism that the position of blade positions, described the 3rd detent mechanism comprises a plurality of jacks, described a plurality of jack is opened in respectively on the table top of brace table and to downward-extension, the diameter of described each jack is suitable with the diameter that the wammel of different size is chewed or bradawl is chewed respectively, and the degree of depth of each jack is less than or equal to the length that wammel is chewed or bradawl is chewed middle blade of wherein inserting.
Preferably, to be located at the opening at the table top place of brace table be V-shaped part to described each jack.
Wherein, described V-shaped part is 19-39 ° with respect to the range of tilt angles of the table top of brace table.
Further preferably, described the 3rd detent mechanism also comprises depression bar, have the handle of a knife guide hole on described depression bar, the diameter of described handle of a knife guide hole is chewed greater than described wammel or bradawl is chewed the diameter of middle handle of a knife, when wammel is chewed or bradawl when chewing middle blade and inserting in described jack, handle of a knife is inserted in described handle of a knife guide hole, thereby depression bar can be sheathed on the collar.
Further preferably, described the 3rd detent mechanism also comprises depression bar guide shaft and guide hole, described depression bar is located on described depression bar guide shaft, described guide hole is opened on the table top of brace table and to downward-extension, the profile of the shape of described guide hole and depression bar guide shaft is suitable so that the depression bar guide shaft can insert in described guide hole just, and described a plurality of jacks are around being distributed near described guide hole.
The beneficial effects of the utility model are:
1. this device can be used as and is exclusively used in PCB machine drilling operation field fine setting and bores the kit of chewing length and use, and is used for transferring the farm labourer position and transfers the casual labourer position, can realize that brill is chewed the accent of length long or transfer short operation, and regulate fast, efficiency is high;
2. this apparatus structure is simple, and market price is in 50 yuan, and manufacturing cost is very cheap; Sturdy and durable, not yielding, long service life is also longer than the drilling machine life-span itself;
Due to when operation the collar evenly stressed and no longer with iron hammer, directly beat the collar, therefore can extend the service life of the collar; Use this device, the employee no longer need to the examination board platform, put the pallet edge strike the eye burrow, be convenient to field management, can improve the service life of rig corollary equipment;
4. easy to use, operating handle is good, operative employee one learns namely can, installation, conveniently moving, put on pallet, ground and can lay, even can be arranged on the rig body, install as kit by this, can chew on-the-spot fine setting working specification to the definite brill unified, standard of operative employee, be through with at present for the unmanageable trouble waters of this operation, thereby in the time of can stopping the production scene toolsetting, artificial breaking situation occurs, and reduces production costs, the kit use when this device also can be used as each PCB machine dimensions drill producer rig and dispatches from the factory.
Description of drawings
Fig. 1 is the structural representation that existing bradawl is chewed;
Fig. 2 is the structural representation that existing wammel is chewed;
Fig. 3 bores the structural representation of chewing length adjustment device in the utility model embodiment 1;
Fig. 4 bores the section of structure of chewing length adjustment device in the utility model embodiment 1.
In figure: the 1-blade; The 2-conus portion; The 3-collar; 31-collar lower surface; 32-collar upper surface; The 4-handle of a knife; 5-blade bottom; 6-examination board platform; 7-is put pallet; The 8-draw-in groove; The 9-depression bar; 10-depression bar guide shaft; The 11-jack; 12-handle of a knife guide hole; The 13-brace table; The 14-storage tank; The 15-guide hole.
The specific embodiment
, for making those skilled in the art understand better the technical solution of the utility model, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
A kind of brill is chewed length adjustment device, comprises brace table and is arranged on detent mechanism on described brace table, and the position that described detent mechanism is used for chewing being placed on brill on brace table the collar and/or blade positions.
Embodiment 1:
In the present embodiment, this brill is chewed length adjustment device and is comprised brace table 13 and be arranged on detent mechanism on brace table 13, and the position that described detent mechanism is used for chewing being placed on brill on brace table the collar 3 and/or blade 1 positions.Wherein,
As shown in Fig. 3,4, in the present embodiment, described brace table 13 comprises table top (being the upper surface of brace table) and a plurality of sides that join with described table top.Described detent mechanism comprises for the wammel that needs are regulated to be chewed with bradawl and chews the second detent mechanism that the position of the collar 3 positions.
Wherein, described the second detent mechanism comprises draw-in groove 8 and storage tank 14.Draw-in groove 8 is opened on the table top of brace table 13 and to downward-extension, thereby described storage tank 14 is opened on a side of brace table 13 and extends internally and is communicated with the bottom of draw-in groove 8, the wammel that the width of draw-in groove 8 is regulated greater than needs is chewed the diameter of middle handle of a knife 4, the wammel that the degree of depth of draw-in groove 8 is regulated less than needs is chewed the distance of middle blade bottom 4 to collar lower surface 31, so that described wammel is chewed, can enter in draw-in groove 8; The wammel that the width of storage tank 14 is regulated greater than needs is chewed the diameter of middle blade 1; The length of draw-in groove 8 is identical with the degree of depth of storage tank 14, and all greater than the external diameter of the collar 3.
Wherein, the width range of draw-in groove 8 is 3.175-3.5mm, and the total depth scope of described storage tank and draw-in groove is 4.5-5.5mm.In the present embodiment, the width of draw-in groove 8 is 3.25mm, and storage tank 14 is 5mm with the total depth of draw-in groove 8, substantially can meet all types of wammels and chew the adjusting requirement of with bradawl, chewing.
Preferably, also comprise in described detent mechanism for the wammel that needs are regulated and chewing or bradawl is chewed the 3rd detent mechanism that the position of blade 1 positions.
In the present embodiment, described the 3rd detent mechanism comprises jack 11, depression bar 9, depression bar guide shaft 10 and guide hole 15.
Described guide hole 15 is opened on the table top of brace table 13 and to downward-extension, and depression bar 9 is located on depression bar guide shaft 10, and the profile of the shape of guide hole 15 and depression bar guide shaft 10 is suitable so that depression bar guide shaft 10 can insert in guide hole 15 just.In the present embodiment, coordinating between depression bar guide shaft 10 and guide hole 15 is matched in clearance.Jack 11 adopts a plurality of, a plurality of jacks are opened in respectively on the table top of brace table and to downward-extension, and described a plurality of jack around be distributed in guide hole 15 around, in described a plurality of jack, the diameter that the bradawl of the different size that the diameter of each jack 11 is regulated with needs is respectively chewed is suitable, and the degree of depth of each jack is chewed the length of middle blade 1 less than the bradawl that wherein inserts.Have handle of a knife guide hole 12 on depression bar 9, the bradawl that the diameter of handle of a knife guide hole 12 is regulated greater than needs is chewed the diameter of middle handle of a knife 4, when bradawl is chewed in the middle blade 1 insertion jack 11 adaptive with it, depression bar guide shaft 10 is inserted in guide hole 15, and handle of a knife 4 is inserted in handle of a knife guide hole 12, depression bar 9 under the self gravitation effect, freely glides by the guiding of depression bar guide shaft 10, make the lower surface of depression bar 9 contact with collar upper surface 32, thereby depression bar 9 can be set on the collar 3.
, if jack 11 is of long duration, easily produce the burr burr on its inwall, thereby the blade 1 that brill is chewed can't insert.Therefore, in the present embodiment, the opening that described each jack 11 is located at the table top place of brace table is designed to V-shaped part.The purpose of design V-shaped part is increase jack 11 and bore the contact area of chewing middle conus portion 2, also namely increases the lifting surface area of jack 11, thereby makes the inwall of jack 11 be difficult for burr, to extend its service life.
Described V-shaped part is 19-39 ° with respect to angle of inclination (the being the section angle) scope of the table top of brace table.Wherein, the section angle of the V-shaped part of chewing for the brill of Φ below 1.0 is 39 ° is advisable, and the V-shaped part section angle that the brill between Φ 1.0～2.5 is chewed is that 19 ° of left and right are for suitable.
Adopting the utility model brill to chew length adjustment device chews and transfers long or transfer the detailed process of short operation as follows brill:
A. transfer the farm labourer position
1. survey the cutter system when rig and detect and bore that to chew length too short and report to the police while shutting down, the operative employee need to brill chew transfer long;
2. brill is chewed from the rig tool magazine and is taken off, with blade down handle of a knife put into the draw-in groove 8 of described the second detent mechanism up; For bradawl is chewed, chew the diameter of the diameter of middle blade 1 less than handle of a knife 4 due to bradawl, be also the width of the diameter of blade 1 less than draw-in groove 8, therefore, can will stretch into again in storage tank 14 after it vertical insertion draw-in groove 8; And wammel is chewed the diameter of the diameter of middle blade 1 greater than handle of a knife 4, be also the width of the diameter of blade 1 greater than draw-in groove 8, therefore, the blade 1 that wammel is chewed must push in draw-in groove 8 from storage tank 14 along continuous straight runs, at this moment, collar lower surface 31 contacts with the table top of brace table, after loosing one's grip, collar lower surface 31 is stressed, so just the collar 3 is located;
3. the top of rapping handle of a knife 4 with glue hammer, the accent that can realize the brill that brill is chewed is chewed length is long.
B. transfer the casual labourer position
1. survey the cutter system when rig and detect and bore that to chew length long and report to the police while shutting down, the operative employee need to brill chew transfer short;
2. for the brill of Φ 2.5 was chewed, when transferring the casual labourer position not work, depression bar 9 under the self gravitation effect,, by 10 guide effects of depression bar guide shaft, freely glided, and is inserted in guide hole 15; When needs are transferred in short-term, operative employee's operation, first mention depression bar 9, then bradawl is chewed middle handle of a knife 4 insert in handle of a knife guide hole 12, makes collar upper surface 32 contact with the lower surface of depression bar 9, simultaneously blade 1 inserted in the jack 11 adaptive with it; The top of touching depression bar 9 with the glue hammer again, can force the position of the collar on handle of a knife 4 to move down, thereby can realize the brill that brill is chewed is chewed the accent short operation of length; In the present embodiment,, because jack is mainly to chew design for the bradawl of Φ below 2.5, therefore, transfer the casual labourer position only can chew and transfer short operation the brill of Φ 2.5, and can not chew the brill of Φ more than 2.5, transfer short operation;
3. for the brill of Φ more than 2.5 chewed, because of the diameter of its blade 1 large, with blade up handle of a knife put into the draw-in groove 8 of described the second detent mechanism down, collar upper surface 32 is contacted with the table top of brace table, touch the blade top with the glue hammer, can realize the brill that brill is chewed is chewed the accent short operation of length.
Embodiment 2:
The present embodiment is from the difference of embodiment 1: the structure of detent mechanism is different.
In the present embodiment, do not comprise the 3rd detent mechanism in detent mechanism.
Bore other structures of chewing length adjustment device in the present embodiment all identical with embodiment 1, repeat no more here.
Brill in the present embodiment is chewed length adjustment device and can not be used for chewing length to the brill that the bradawl of Φ below 2.5 chewed and transfer short.
Embodiment 3:
The present embodiment is from the difference of embodiment 1: the structure in detent mechanism is different.
In the present embodiment, detent mechanism comprises the first detent mechanism and the 3rd detent mechanism.Wherein, the first detent mechanism position of being used for the bradawl that needs are regulated is chewed the collar positions; The structure of described the 3rd detent mechanism is in the same manner as in Example 1.
In the present embodiment, described the first detent mechanism comprises draw-in groove, described draw-in groove is opened on the table top of described brace table and to downward-extension, the bradawl that the width of draw-in groove is regulated greater than needs is chewed the diameter of middle handle of a knife, and the bradawl that the degree of depth of draw-in groove is regulated greater than needs is chewed the distance of middle blade top to collar lower surface.
Bore other structures of chewing length adjustment device in the present embodiment all identical with embodiment 1, repeat no more here.
Brill in the present embodiment is chewed length adjustment device and can not be chewed length to the brill that wammel is chewed and transfer long.
Embodiment 4:
The present embodiment is from the difference of embodiment 3: the structure of detent mechanism is different.
In the present embodiment, detent mechanism comprises the first detent mechanism, and does not comprise the 3rd detent mechanism.
Brill in the present embodiment is chewed length adjustment device and can only be chewed length to the brill that bradawl is chewed and transfer long.
Embodiment 5:
The present embodiment is from the difference of embodiment 1: the structure of the 3rd detent mechanism is different.
In the present embodiment, the 3rd detent mechanism comprises jack 11 and depression bar 9, has handle of a knife guide hole 12 on depression bar 9.Yet, do not comprise depression bar guide shaft 10 and guide hole 15 in described the 3rd detent mechanism.
Bore other structures of chewing length adjustment device in the present embodiment all identical with embodiment 1, repeat no more here.
Be understandable that, above embodiment is only the illustrative embodiments that adopts for principle of the present utility model is described, yet the utility model is not limited to this.For those skilled in the art,, in the situation that do not break away from spirit of the present utility model and essence, can make various modification and improvement, these modification and improvement also are considered as protection domain of the present utility model.
Claims (14)
1. a brill is chewed length adjustment device, it is characterized in that, comprise brace table and the detent mechanism that is arranged on described brace table, the position that described detent mechanism is used for chewing being placed on brill on brace table the collar and/or blade positions, described brace table comprises table top and a plurality of sides that join with described table top, described detent mechanism comprises the first detent mechanism that positions for the position of bradawl being chewed the collar, described the first detent mechanism comprises draw-in groove, described draw-in groove is opened on the table top of described brace table and to downward-extension, the width of draw-in groove is chewed the diameter of middle handle of a knife more than or equal to described bradawl, the degree of depth of draw-in groove is chewed the distance of middle blade top to collar lower surface greater than described bradawl.
2. device according to claim 1, is characterized in that, the width range of described draw-in groove is 3.175-3.5mm, and the depth bounds of described draw-in groove is 4.5-5.5mm.
3. device according to claim 1 and 2, it is characterized in that, also comprise in described detent mechanism for wammel being chewed or bradawl is chewed the 3rd detent mechanism that the position of blade positions, described the 3rd detent mechanism comprises a plurality of jacks, described a plurality of jack is opened in respectively on the table top of brace table and to downward-extension, the diameter of described each jack is suitable with the diameter that the wammel of different size is chewed or bradawl is chewed respectively, and the degree of depth of each jack is less than or equal to the length that wammel is chewed or bradawl is chewed middle blade of wherein inserting.
4. device according to claim 3, is characterized in that, the opening that described each jack is located at the table top place of brace table is V-shaped part.
5. device according to claim 4, is characterized in that, described V-shaped part is 19-39 ° with respect to the range of tilt angles of the table top of brace table.
6. device according to claim 3, it is characterized in that, described the 3rd detent mechanism also comprises depression bar, have the handle of a knife guide hole on described depression bar, the diameter of described handle of a knife guide hole is chewed greater than described wammel or bradawl is chewed the diameter of middle handle of a knife, chew or bradawl when chewing middle blade and inserting in described jack when wammel, handle of a knife is inserted in described handle of a knife guide hole, thereby depression bar can be sheathed on the collar.
7. device according to claim 6, it is characterized in that, described the 3rd detent mechanism also comprises depression bar guide shaft and guide hole, described depression bar is located on described depression bar guide shaft, described guide hole is opened on the table top of brace table and to downward-extension, the profile of the shape of described guide hole and depression bar guide shaft is suitable so that the depression bar guide shaft can insert in described guide hole just, and described a plurality of jacks are around being distributed near described guide hole.
8. a brill is chewed length adjustment device, it is characterized in that, comprise brace table and the detent mechanism that is arranged on described brace table, the position that described detent mechanism is used for chewing being placed on brill on brace table the collar and/or blade positions, described brace table comprises table top and a plurality of sides that join with described table top, described detent mechanism comprises for wammel being chewed with bradawl chews the second detent mechanism that the position of the collar positions, described the second detent mechanism comprises draw-in groove and storage tank, described draw-in groove is opened on the table top of described brace table and to downward-extension, thereby described storage tank is opened in a side of described brace table and extends internally and is communicated with the bottom of described draw-in groove, the width of draw-in groove is chewed greater than described wammel or bradawl is chewed the diameter of middle handle of a knife, the degree of depth of draw-in groove is less than or equal to described wammel and chews the distance of middle blade bottom to collar lower surface, the width of storage tank is chewed the diameter of middle blade more than or equal to described wammel.
9. device according to claim 8, is characterized in that, the width range of described draw-in groove is 3.175-3.5mm, and the total depth scope of described storage tank and draw-in groove is 4.5-5.5mm.
10. according to claim 8 or claim 9 device, it is characterized in that, also comprise in described detent mechanism for wammel being chewed or bradawl is chewed the 3rd detent mechanism that the position of blade positions, described the 3rd detent mechanism comprises a plurality of jacks, described a plurality of jack is opened in respectively on the table top of brace table and to downward-extension, the diameter of described each jack is suitable with the diameter that the wammel of different size is chewed or bradawl is chewed respectively, and the degree of depth of each jack is less than or equal to the length that wammel is chewed or bradawl is chewed middle blade of wherein inserting.
11. device according to claim 10, is characterized in that, the opening that described each jack is located at the table top place of brace table is V-shaped part.
12. device according to claim 11, is characterized in that, described V-shaped part is 19-39 ° with respect to the range of tilt angles of the table top of brace table.
13. device according to claim 10, it is characterized in that, described the 3rd detent mechanism also comprises depression bar, have the handle of a knife guide hole on described depression bar, the diameter of described handle of a knife guide hole is chewed greater than described wammel or bradawl is chewed the diameter of middle handle of a knife, chew or bradawl when chewing middle blade and inserting in described jack when wammel, handle of a knife is inserted in described handle of a knife guide hole, thereby depression bar can be sheathed on the collar.
14. device according to claim 13, it is characterized in that, described the 3rd detent mechanism also comprises depression bar guide shaft and guide hole, described depression bar is located on described depression bar guide shaft, described guide hole is opened on the table top of brace table and to downward-extension, the profile of the shape of described guide hole and depression bar guide shaft is suitable so that the depression bar guide shaft can insert in described guide hole just, and described a plurality of jacks are around being distributed near described guide hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202095473U CN203293270U (en) | 2013-04-23 | 2013-04-23 | Length adjusting device of drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202095473U CN203293270U (en) | 2013-04-23 | 2013-04-23 | Length adjusting device of drill bit |
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| CN203293270U true CN203293270U (en) | 2013-11-20 |
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| CN2013202095473U Expired - Lifetime CN203293270U (en) | 2013-04-23 | 2013-04-23 | Length adjusting device of drill bit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110488057A (en) * | 2019-09-24 | 2019-11-22 | 格力电器（武汉）有限公司 | A kind of probe needle guard makes set tool |
| CN113910361A (en) * | 2021-12-09 | 2022-01-11 | 四川英创力电子科技股份有限公司 | Device and method for quickly and precisely correcting drill bit for drilling printed circuit board |
| CN113927668A (en) * | 2021-09-29 | 2022-01-14 | 惠州新联兴实业有限公司 | Conducting hole processing method, circuit board drill bit and drilling device |
-
2013
- 2013-04-23 CN CN2013202095473U patent/CN203293270U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110488057A (en) * | 2019-09-24 | 2019-11-22 | 格力电器（武汉）有限公司 | A kind of probe needle guard makes set tool |
| CN113927668A (en) * | 2021-09-29 | 2022-01-14 | 惠州新联兴实业有限公司 | Conducting hole processing method, circuit board drill bit and drilling device |
| CN113927668B (en) * | 2021-09-29 | 2023-02-03 | 惠州新联兴实业有限公司 | Conducting hole processing method, circuit board drill bit and drilling device |
| CN113910361A (en) * | 2021-12-09 | 2022-01-11 | 四川英创力电子科技股份有限公司 | Device and method for quickly and precisely correcting drill bit for drilling printed circuit board |
| CN113910361B (en) * | 2021-12-09 | 2022-02-11 | 四川英创力电子科技股份有限公司 | Device and method for quickly and precisely correcting drill bit for drilling printed circuit board |
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Effective date of registration: 20220622 Address after: 3007, Hengqin international financial center building, No. 58, Huajin street, Hengqin new area, Zhuhai, Guangdong 519031 Patentee after: New founder holdings development Co.,Ltd. Patentee after: ZHUHAI FOUNDER TECH. MULTILAYER PCB Co.,Ltd. Address before: 100871, Beijing, Haidian District, Cheng Fu Road, No. 298, Zhongguancun Fangzheng building, 5 floor Patentee before: PEKING UNIVERSITY FOUNDER GROUP Co.,Ltd. Patentee before: ZHUHAI FOUNDER TECH. MULTILAYER PCB Co.,Ltd. |
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