CN105499664A - Drill bit and installation method of plug - Google Patents
Drill bit and installation method of plug Download PDFInfo
- Publication number
- CN105499664A CN105499664A CN201610031302.4A CN201610031302A CN105499664A CN 105499664 A CN105499664 A CN 105499664A CN 201610031302 A CN201610031302 A CN 201610031302A CN 105499664 A CN105499664 A CN 105499664A
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- drill bit
- boring
- groove
- annular
- joint
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/02—Twist drills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/08—Drills combined with tool parts or tools for performing additional working
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/18—Configuration of the drill point
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The invention provides a drill bit. The drill bit comprises an annular protruding part on the rear portion of a drill rod, an annular part, a swinging positioning side boring mechanism and a blade head for drilling and boring; an annular joint groove of which the groove opening faces downwards in an inclined mode is formed in the annular protruding part; a ring-arc joint head corresponding to the annular joint groove is arranged on the annular part, the annular part is arranged outside the annular protruding part in a sleeving mode through the ring-arc joint head, the bottom of the annular part has a shock-absorption drilling depth limiting structure, and a whole body formed by the drill rod and a drill handle is formed by a steel bar which enters a die spotting machine to be subjected to die spotting hot forging pressing or hot stamping. The invention further provides an installation method of a plug. According to the drill bit and the installation method of the plug, the drill rod is formed by die spotting in one time, joint limiting is conducted by taking an axis core as a limiting base point, the manufacturing cost is low, the adverse effect on concrete around a hole is avoided when a bottom cutting hole with the expanding bore bottom is drilled, the precision of the hole is guaranteed, and the service life of the drill bit is prolonged.
Description
Technical field
The present invention relates to a kind of drill bit, be applicable to all kinds of building concrete to complete boring and expand boring with bottom.Being particularly useful for construction on ceiling hanging and thin wall can effectively prevent impact from causing adjacent room to damage, and the invention still further relates to the installation method of bolt.
Background technology
Existing concrete boring mainly divides 2 kinds of patterns with expansion bore hole drill bit:
The intumescent crab-bolt of line dilating principle due to security poor, banned for curtain wall, lifeline engineering ... etc., and be existingly considered to safer and cut reaming crab-bolt, owing to cutting reaming boring technological problems, also there is more problem:
One, drill bit cost is high, and the life-span is too short, and can only be used for comparatively macropore, and market audient is narrower.As: patent No. CN200420089975 deep hole drift.
Its two, in order to coordinate, to cut the degree of depth of reaming spacing, the Bian limit-type bit drills straight hole of rigid steel plate, and during by being drilled to straight hole under electric hammer percussion, makes impact shake stress and concentrate on spacing top and jump ring place and cause fracture.In addition in order to saving construction cost, adapted common electric drill comparatively early bores as the expansion bore hole of power, though save to some extent from drill bit cost like this, but it expands boring bottom outlet drill bit and adopts the spacing flat pad of the degree of depth, be enclosed within flat with the limited support of outer protrusion on drilling rod on, when expansion bottom outlet is waved in inclination, due to limited support flat tilt time will angle of arrival poor, the hard impact stroke swung up and down that differential seat angle brings about about 10 millimeters of gaps is spacing, cause the tapered hole that should expand and bore and match with crab-bolt, become tapered hole top and suffer that concrete hole breakage becomes large, become extension horn-like, make crab-bolt that expanded casing occur when load to pull out and cause crab-bolt displacement, cause nut lax sagging with structural member, breakneck to curtain wall.Root is had to cut the rig of boring as patent CN89106532 produces.
They are three years old, in order to solve the spacing problem of rigid steel plate, employing elasticity of plastics is spacing, and under being impacted by electric hammer, the steel plain cushion banking stop in plastics is made to impact conflict mutually with the flange of drilling rod upper limit plane, when tilting to expand boring, the fulcrum of the plane of flange will angulation, outside its angle band dealing hole, the elasticity of plastics impact stroke of direction out about 10 millimeter is spacing, cause the tapered hole that should expand boring one-tenth and crab-bolt and match, but tapered hole top suffers that concrete hole breakage becomes large, become extension horn-like, make crab-bolt that expanded casing occur when load to pull out and cause crab-bolt displacement lax, and the plastic housing of the drill bit spacing life-span just scraps about about 50 holes, this drill bit accounting for about 15 yuan, every hole for this becomes originally to say, involve great expense and seem luxurious.As: patent No. CN92101397, for being gone out the drill bit of boring by side cutting.
China has entered labor shortage and machine for people's epoch, the drill bit of this kind of expansion bore hole, no matter in American-European or China, it all must be employed numerical control device moulding and can produce, its price is all in hundreds of unit and nearly 1,000 yuan, and its drill bit cost has exceeded crab-bolt product price, seriously restricts industry development.For this reason, the boring of research and development low cost, high effect is bit Integrated with expansion boring, and market prospects are had an optimistic view of.
Summary of the invention
For problems of the prior art, the object of the present invention is to provide a kind of drill bit, by adopting the shaping invention of disposable matched moulds to drilling rod and being that the joint of spacing basic point is spacing with axle core, not only cheap, but also avoid bore bottom by expand boring cut bottom outlet time, concrete around hole is had a negative impact, guarantees the precision in hole and improve life-span of drill bit.For achieving the above object, the present invention is by the following technical solutions:
A kind of drill bit, comprises transmission drillstock, drilling rod, it is characterized in that described drill bit also comprise drilling rod rear portion annular protrusion position, annular element, wave oriented side boring mechanism, bore the dual-purpose blade head of boring; Described annular protrusion position arranges notch direction annular joint groove obliquely; Described annular element is provided with and annular joint groove corresponding ring arc ball and socket joint, described annular element is enclosed within outside annular protrusion position by ring arc ball and socket joint, with shock absorbing drilling depth position limiting structure bottom described annular element, described ring arc ball and socket joint internal diameter is less than notch external diameter above the groove of joint; The described side boring detent mechanism that waves comprises the centre be located between groove bottom, described joint and the cutoff edge top, side of boring the dual-purpose blade head of boring and waves support portion and be in centre and wave necking part above support portion, and drilling rod waves support portion to the interlude diameter of necking part and reduces gradually from centre; Described drilling rod is provided with counter-clockwise helical chip area from the dual-purpose blade head of brill boring between drilling rod to joint groove;
The entirety that described drilling rod and drillstock are formed is that rod iron enters clapper die spotting press and carries out matched moulds forge hot pressure or heat stamping and shaping.
On the basis adopting technique scheme, the present invention also can adopt following further technical scheme respectively or combinationally use these technical schemes:
Described counter-clockwise helical chip area has been connected by skewed slot, translot, and the head and the tail of translot are all connected to skewed slot, described drilling rod is arranged blade groove, and blade groove connects with skewed slot.
Metallic elastic latch fitting is provided with between described ring arc ball and socket joint and joint groove, described metallic elastic latch fitting has bottom, described bottom and described joint groove are conflicted and obtain support, described metallic elastic latch fitting also has side support part in the both sides of bottom, and the side support part of both sides contacts with the upper and lower of ball and socket joint and makes ball and socket joint obtain support.
Described metallic elastic latch fitting is ring set structure, and in ring set structure, have the notch cannelure obliquely forming described bottom and side support part.
The bottom of described annular element is provided with the groove of inserting for flexible anti-shock pad, and described shock absorbing drilling depth position limiting structure adopts flexible anti-shock pad, to the extruding of flexible anti-shock pad, flexible anti-shock pad is locked jail, or be glued by notch.
Described drilling rod is provided with the cutter of processing aperture limited step above the below and necking part of protruding parts.
The dual-purpose blade head of described brill boring is that cross is overall, and its side cutoff edge expanding boring extends to inclination at the overall epicone of cross, is provided with location tip in the middle of its cross entirety; The dual-purpose blade head of described brill boring, the side cutoff edge length of its side bore hole is longer than boring blade.Four drill swords in described cross entirety all can add that grow up to can side cutoff edge, but and unnecessary because to cut workload less in side, only need 1-2 blade to meet.
Described drilling rod is disc, in order to solve the release problems that counter-clockwise helical chip area manufactures because cannot complete clamping system along the spiral groove depth angle of drilling rod disc, described drilling rod take spue line as the first side and the second side that benchmark is divided into left and right configuration, described counter-clockwise helical chip area has been connected by skewed slot, translot, described counter-clockwise helical chip area passes to the second side with the form of described translot from the first side, described drilling rod also arranges blade groove, and blade groove connects with skewed slot; The grooved of the described blade groove of the first side and the second side, translot, skewed slot is respectively the grooved meeting and require to the first side and the second side demoulding.
Be provided with the expansion boring of guaranteeing to expand smoothly boring and chip removal to help cut room in the clockwise direction front of the side cutoff edge of described expansion boring.
Second object of the present invention is to provide a kind of installation method of bolt, it is characterized in that
Before the mounting, to the above-mentioned bit drills straight hole of matrix need installing bolt, until the shock absorbing drilling depth position limiting structure of described drill bit encounters aperture, then utilize the shock absorbing drilling depth position limiting structure of described drill bit as shock absorbing self adaptation position limiting structure, in the limited situation of drilling depth, drill bit is waved for fulcrum with the support portion of waving of drill bit, thus carry out bottom expansion boring with the side cutoff edge cutting of the dual-purpose blade head of the brill boring of drill bit, formed bottom by expand boring formed bottom side recessed cut bottom outlet, and waving in drill bit process, the Tool in Cutting of processing aperture limited step is utilized to form aperture limited step, the height of limited step exceeds the sleeve top 1-2mm of described bolt,
When mounted, first described bolt being put into and cut bottom outlet, making the spacing aperture limited step with cutting bottom outlet of the fitting depth on sleeve form spacing cooperation; Then, adopt front end with push rod, push rod rear arranges the installation machinery of the screw rod be threaded with the internal thread of hub internal bore, employing spiral way advances, push expansion pin by push rod to push ahead, until the bottom stage face of step that expansion pin is protruded forward coordinates with the anti-breakdown spacing formation of sleeve is spacing, now, the expansion lobe of sleeve by expansion enter the bottom side cutting bottom outlet recessed in, complete installation.
Owing to adopting technical scheme of the present invention, structure of the present invention can realize adopting disposable matched moulds shaping to drilling rod, and in the simple parts of this structure, realization take axle core as the shock absorbing self adaptation articulated type position limiting structure of spacing basic point, both avoided bore bottom by expand boring cut bottom outlet time, concrete around hole is had a negative impact, guarantee again the precision in hole and improve life-span of drill bit, and, self adaptation articulated type position limiting structure can directly be installed, greatly can reduce the cost of drill bit, reduce punching cost; And the present invention is when being applied to the installation of bolt, can play preferably have anti-breakdown spacing, fitting depth is spacing, the function of the bolt of spacing this three-dimensional three limit protections of Anti-extrusion, easily punctures the problem of installing matrix and bonding strength when can solve installation simultaneously.
Accompanying drawing explanation
Fig. 1 is that the master of an embodiment of the present invention cuts open figure depending on office, has wherein concealed shock absorbing drilling depth position limiting structure.
Fig. 2 is that the master of the another kind of embodiment of the present invention cuts open figure depending on office.
Fig. 3 is that the master of the third embodiment of the present invention cuts open figure depending on office.
Fig. 3 a is that the master of annular element in the third embodiment of the present invention cuts open figure depending on office.
Fig. 3 b is the front view of metallic elastic latch fitting of the present invention.
Fig. 4 a is the schematic diagram that the present invention bores the dual-purpose blade of boring first kind of embodiment.
Fig. 4 b is the schematic diagram that the present invention bores the another kind of embodiment of the dual-purpose blade head of boring.
Fig. 5 a is drilling rod of the present invention, the unitarily formed side view of drillstock.
Fig. 5 b is drilling rod of the present invention, the unitarily formed front view of drillstock.
Fig. 5 c is drilling rod of the present invention, the unitarily formed upward view of drillstock.
Fig. 5 d is drilling rod of the present invention, drillstock single piece take spue line as the schematic diagram that benchmark is divided into the first side and the second rear flank.
Fig. 6 is the schematic diagram of the drilling bottom outlet of drill bit of the present invention.
Fig. 7 is a kind of front view of sleeve of bolt.
Fig. 8 is the sectional drawing expanding lobe place in Fig. 7.
Fig. 9 is the sectional view of Fig. 7 sleeve.
Figure 10 is the top view of Fig. 9.
The expansion pin of Figure 11 for bolt this shown in Fig. 7 and the prepackage schematic diagram of sleeve.
Figure 12 is the schematic diagram of the expansion pin in Figure 11.
Figure 13 is the top view of the expansion pin in Figure 11.
Figure 14 is that bolt is installed to the sectional view after in installation matrix.
Figure 15 is the installation process schematic diagram of bolt.
Detailed description of the invention
With reference to Fig. 1-6.A kind of drill bit provided by the present invention, comprises transmission drillstock 201, drilling rod 210.Described transmission drillstock 201 is provided with the groove hole that adaptive all kinds of electric hammer unit head connects.
Described drill bit also comprise drilling rod rear portion annular protrusion position 213, annular element 220, wave oriented side boring mechanism, bore boring dual-purpose blade head 240; Described annular protrusion position arranges notch direction annular joint groove 212 obliquely; Described annular element is provided with and annular joint groove corresponding ring arc ball and socket joint 222, described annular element is enclosed within outside annular protrusion position 220 by ring arc ball and socket joint 222, with shock absorbing drilling depth position limiting structure 221 bottom described annular element, described ring arc ball and socket joint internal diameter is less than notch 2120 external diameter above the groove of joint; The described side boring detent mechanism that waves comprises the centre be located between groove bottom, described joint and the cutoff edge top, side of boring the dual-purpose blade head of boring and waves support portion 211 and be in centre and wave necking part 205 above support portion, and drilling rod waves support portion to the interlude diameter of necking part and reduces gradually from centre; Described drilling rod is provided with counter-clockwise helical chip area from the dual-purpose blade head of brill boring between drilling rod to joint groove.
Adopt structure of the present invention, the entirety that described drilling rod and drillstock are formed can adopt rod iron to enter clapper die spotting press to carry out matched moulds forge hot pressure or heat stamping and shaping, significantly reduce cost.
Metallic elastic latch fitting 230 is provided with between described ring arc ball and socket joint 222 and joint groove 212, described metallic elastic latch fitting has bottom 231, described bottom 231 and described joint groove are conflicted and obtain support, described metallic elastic latch fitting also has side support part 232 in the both sides of bottom, and the side support part 232 of both sides contacts with the upper and lower of ball and socket joint and makes ball and socket joint obtain support.Like this, shock absorbing drilling depth position limiting structure utilizes three point elasticity contacts support and make it can either play limit function accurately, play shock absorbing function, and have can be movable flexibly, be convenient to drilling operation, and, be in the notch direction joint groove 212 obliquely of protruding parts, the drilling rod below it can stop annular element 220 without any structure before mounting cutter, can facilitate the installation of annular element, and after installing, metallic elastic latch fitting 230 can be utilized again and prevent it from falling down.
In the present embodiment, described metallic elastic latch fitting 230 is ring set structure, and in ring set structure, have the notch cannelure obliquely forming described bottom 231 and side support part 232.Described metallic elastic latch fitting is provided with at least 1 open slot 233, and metallic elastic latch fitting can be made to be snapped in the groove of joint by pressure.
The transition that the top of described protruding parts is provided with between drilling rod strengthens position 218.
In the present embodiment, described drilling rod 210 is provided with the cutter 215 of processing aperture limited step 102 in the below of protruding parts 213, drawing reference numeral 2150 is the pilot hole of cutter 215.
The bottom of described annular element is provided with the groove 224 of inserting for flexible anti-shock pad, and described shock absorbing drilling depth position limiting structure 221 adopts flexible anti-shock pad, to the extruding of flexible anti-shock pad, flexible anti-shock pad is locked jail, or be glued by the notch of groove 224.
As shown in Fig. 5 a, 5b, described chip area has been connected by skewed slot 203, translot 204, and the head and the tail of translot are all connected to single side face skewed slot skewed slot 203, and blade groove 202 connects with skewed slot 203.
As previously mentioned, adopt structure of the present invention, the entirety that described drilling rod and drillstock are formed can adopt rod iron to enter clapper die spotting press to carry out matched moulds forge hot pressure or heat stamping and shaping, significantly reduce cost.Described drilling rod with spue line 300 for benchmark be divided into left and right configuration the first side A and the second side B, described counter-clockwise helical chip area has been connected by skewed slot 203, translot 204, and described counter-clockwise helical chip area passes to the second side B with the form of described translot 204 from the first side A; The grooved of the described blade groove of the first side and the second side, translot, skewed slot is respectively the grooved meeting and require to the first side and the second side demoulding.
Form the mounting groove 216 of the dual-purpose blade head of described brill boring in the bottom of drilling rod by mould when matched moulds forge hot pressure or heat stamping and shaping manufacture, be provided with in the clockwise direction front of the side cutoff edge of described expansion boring and expand boring and help and cut room 217.
Described brill boring cutter sword head 240, side cutoff edge 241 length of its side bore hole is longer than boring blade 242.As shown in Figure 4 b, the dual-purpose blade head of described brill boring can be that cross is overall, and its side cutoff edge expanding boring extends to inclination at the overall epicone of cross, its cross overall intermediate settings position tip 243.Boring boring cutter sword head 240 to make for wear-resisting high-strength degree material, to be embedded in bottom drilling rod in mounting groove 216 by welding.
Described drillstring component surface is provided with the nitrogen layer or titanium layer that increase wearability.
With reference to Fig. 2; in the present embodiment; described annular element 220 has the hook 223 strengthening position 218 with described transition and coordinate; like this; can play and avoid stress to concentrate, particularly wave for needing the drill bit expanding boring and use, significantly can extend the service life of drill bit; annular element 220 can be protected further again, not hinder again the joint action of drilling depth position limiting structure simultaneously.
With reference to Fig. 6, drawing reference numeral 100, for installing matrix, is the main body that the bolt that will install depends on, such as wallboard or ceiling board.Drawing reference numeral 101 is for cutting bottom outlet, and drawing reference numeral 103 is for cutting bottom bottom outlet by the side recessed 103 expanded after boring.
Drill bit provided by the present invention is used for the installation of bolt.With reference to accompanying drawing 7-15, the invention provides a kind of embodiment of bolt:
Bolt provided by the present invention is a kind of limited bolt, comprise sleeve 1, the lower end of sleeve arranges expansion lobe 2, and described limited bolt also comprises the expansion pin 3 be pre-loaded in sleeve, described expansion pin is provided with pre-assembling structure, is provided with the structure with described prepackage respective outer side edges in the endoporus 10 of described sleeve 1.
Described sleeve 1 be provided with coordinate with described expansion pin 3 anti-breakdown spacing 4 and and the fitting depth spacing 5 that matrix 100 coordinates is installed.
Fitting depth spacing 5 can be in one of sleeve upper end to enclose outwardly step.
Described anti-breakdown spacing 4 for be in expansion lobe 2 end to inner bulge, the head of described expansion pin 3 is provided with the step protruded forward, the bottom stage face 31 of described step coordinates with described anti-breakdown spacing 4, make expansion pin 3 travel forward touch expansion lobe 2 inclined-plane after, when continuing expansion expansion lobe 2 moving forward, when bottom stage face 31 encounter anti-breakdown spacing after, expansion pin 3 cannot continue forward again and become overall with sleeve 1, 1, sleeve cuts coordinating of the aperture limited step 102 of bottom outlet 101 by the described dress degree of depth spacing 5 and the mounting limit bolt installed on matrix, and motion can not be continued to depth direction.
The protuberance forward 32 of the described step protruded forward enter each expansion lobe 2 between inner bulge (also namely anti-breakdown spacing 4) 40, described protuberance forward 32 and form the spacing cooperation of Anti-extrusion to the side, top 41 of inner bulge, prevent expansion lobe 2 from inwardly shrinking, further, described anti-breakdown spacing side, top 41 is the rounding conical surface (see Figure 12) before expansion lobe 2 is not expanded, the side 320 of described protuberance forward 32 is in the face of cylinder, what expansion pin 3 was born at the maximum arm of force place of the reaction force bearing expansion lobe 2 is pressure at right angle, prevent 21 pairs, the expansion lobe inclined-plane expansion pin 3 contributing to expanding lobe expansion when limited bolt is installed and produce crowding-out effect.
Described expansion pin arranges prepackage drive mechanism 34, and the endoporus 10 of described sleeve 1 arranges internal thread 11 near aperture up to the position close to expansion lobe 2.The transition type introducing port 12 of protection internal thread is set in described endoporus 10 upper end, this introducing port 12 conically and do not arrange screw thread, its objective is because limited bolt lacks guiding when mounted, limited bolt be driven into by Hammer head cut bottom outlet 101 time, internal thread is easy to destroy, cause follow-up article that difficulty is installed, therefore, described limited bolt utilizes cold-heading fabrication technique, when extruding formation anti-breakdown spacing 4, utilize and form introducing port 12 with secondary mould with procedure, by cold-heading fabrication technique, material hardening is strengthened simultaneously, like this, when adopting Hammer head to knock sleeve, even if be not easy distortion and have a small amount of distortion, also aperture and the internal thread 11 of endoporus 10 can not be affected, thus solve internal thread destroy and article difficulty install problem.
The side of described expansion pin 3 is provided with the prepackage salient point 33 that can coordinate with described internal thread 11, make expansion pin 3 can rely on described prepackage drive mechanism and screw in be preloaded onto sleeve 1 bottom, make expansion pin 3 can be preloaded onto on sleeve 1 and form finished product, expansion pin 3 is made to be unlikely to when different angles are installed to drop out, when expansion pin 3 advances expansion expansion lobe 2, this prepackage salient point 33 automatically falls down or is out of shape or destroys lower internal thread, both facilitated and upwards installed, do not affect again the installation of limited bolt, and the internal thread on hub internal bore 10 top is preserved for connecting by complete the article that need install, described prepackage drive mechanism can be interior hexagonal, outer-hexagonal, one word, cross, and other structure of input torsion can be made, make expansion pin 3 also make by cold-heading like this to form.
The sleeve of described limited bolt formed along mould configuration (see Fig. 9 and Figure 10, manufacture upsetting by cold-heading and cause seamless body, only need to expansion lobe 3 place grooving 6 and tapping thread, its compact structure intensity is high, and simple exquisiteness is inexpensive.
The outer surface of described sleeve 1 is provided with a circle at the root of expansion lobe and easily opens groove 13, namely guarantees load intensity, by easily opening groove 13, expansion lobe can easily be strutted again.
The outer surface of described expansion lobe arranges spline load line 14, to increase concrete and expansion member coefficient of friction, make anchor pole, in the internal thread of endoporus that screw mandrel is installed on sleeve time, be unlikely rotation.
Above provided limited bolt achieve in simple structure anti-breakdown spacing, fitting depth is spacing, Anti-extrusion is spacing, by this three-dimensional three limit protections, easily puncture the problem of installing matrix and bonding strength when can solve installation, and structure installment conveniently, easily manufactures, intensity is high, cost is low simultaneously.
The installation method of above-mentioned limited bolt is as follows:
Before the mounting, to the bit drills straight hole needing the matrix 100 of mounting limit bolt Fig. 1-6 illustrated embodiment, until the shock absorbing drilling depth position limiting structure 221 of described drill bit encounters aperture, then utilize the shock absorbing drilling depth position limiting structure of described drill bit as shock absorbing self adaptation position limiting structure, in the limited situation of drilling depth, drill bit is waved for fulcrum with the support portion 211 of waving of drill bit, thus carry out bottom expansion boring with side cutoff edge 241 cutting of the dual-purpose blade head of the brill boring of drill bit, formed bottom by expand boring formed bottom side recessed cut bottom outlet 101, and waving in drill bit process, utilize the cutting tool 215 cutting place aperture limited step 102 of processing aperture limited step, the height of limited step exceeds the sleeve 1 top 1-2mm of described bolt.
When mounted, first described limited bolt is put into and cut bottom outlet 101, make the fitting depth on sleeve 1 spacing 5 form spacing cooperation with the aperture limited step 102 cutting bottom outlet; Then, adopt front end that the installation machinery 400 of the screw rod 402 be threaded with the internal thread 11 of hub internal bore is set with push rod 401, push rod rear, employing spiral way advances, push expansion pin 3 by push rod 401 to push ahead, the bottom stage face of the step protruded forward until described forms spacing cooperation with described anti-breakdown spacing 4, now, expansion lobe 3 is entered in the bottom side cutting bottom outlet recessed 103 by expansion, completes installation.Like this, power formula erection unit 400 is supported by above-mentioned band screw rod and the mutual of pushing ram, expansion pin is advanced by rotating screw thread, can automatically screw out after completing, all all complete within the several seconds, very convenient, installation matrix can not be punctured, and the protrusion defective mounting that outside displacement causes can be eliminated when mounted.
The foregoing is only specific embodiments of the invention, but architectural feature of the present invention is not limited thereto, any those skilled in the art is in the field of the invention, and the change done or modification are all encompassed among protection scope of the present invention.
Claims (10)
1. a drill bit, comprises transmission drillstock, drilling rod, it is characterized in that described drill bit also comprise drilling rod rear portion annular protrusion position, annular element, wave oriented side boring mechanism, bore boring dual-purpose blade head; Described annular protrusion position arranges notch direction annular joint groove obliquely; Described annular element is provided with and annular joint groove corresponding ring arc ball and socket joint, described annular element is enclosed within outside annular protrusion position by ring arc ball and socket joint, with shock absorbing drilling depth position limiting structure bottom described annular element, described ring arc ball and socket joint internal diameter is less than notch external diameter above the groove of joint; The described side boring detent mechanism that waves comprises the centre be located between groove bottom, described joint and the cutoff edge top, side of boring the dual-purpose blade head of boring and waves support portion and be in centre and wave necking part above support portion, and drilling rod waves support portion to the interlude diameter of necking part and reduces gradually from centre; Described drilling rod is provided with counter-clockwise helical chip area from the dual-purpose blade head of brill boring between drilling rod to joint groove;
The entirety that described drilling rod and drillstock are formed is that rod iron enters clapper die spotting press and carries out matched moulds forge hot pressure or heat stamping and shaping.
2. a kind of drill bit as claimed in claim 1, it is characterized in that described counter-clockwise helical chip area has been connected by skewed slot, translot, the head and the tail of translot are all connected to skewed slot, described drilling rod are arranged blade groove, and blade groove connects with skewed slot.
3. a kind of drill bit as claimed in claim 1, it is characterized in that being provided with metallic elastic latch fitting between described ring arc ball and socket joint and joint groove, described metallic elastic latch fitting has bottom, described bottom and described joint groove are conflicted and obtain support, described metallic elastic latch fitting also has side support part in the both sides of bottom, and the side support part of both sides contacts with the upper and lower of ball and socket joint and makes ball and socket joint obtain support.
4. a kind of drill bit as claimed in claim 3, is characterized in that described metallic elastic latch fitting is ring set structure, and in ring set structure, have the notch cannelure obliquely forming described bottom and side support part.
5. a kind of drill bit as claimed in claim 1, it is characterized in that the bottom of described annular element is provided with the groove of inserting for flexible anti-shock pad, described shock absorbing drilling depth position limiting structure adopts flexible anti-shock pad, to the extruding of flexible anti-shock pad, flexible anti-shock pad is locked jail, or be glued by notch.
6. a kind of drill bit as claimed in claim 1, is characterized in that described drilling rod is provided with the cutter of processing aperture limited step above the below and necking part of protruding parts.
7. a kind of drill bit as claimed in claim 1, is characterized in that the dual-purpose blade head of described brill boring is that cross is overall, and its side cutoff edge expanding boring extends to inclination at the overall epicone of cross, is provided with location tip in the middle of its cross entirety; The dual-purpose blade head of described brill boring, the side cutoff edge length of its side bore hole is longer than boring blade.
8. a kind of drill bit as claimed in claim 1, it is characterized in that described drilling rod take spue line as the first side and the second side that benchmark is divided into left and right configuration, described counter-clockwise helical chip area has been connected by skewed slot, translot, described counter-clockwise helical chip area passes to the second side with the form of described translot from the first side, described drilling rod also arranges blade groove, and blade groove connects with skewed slot; The grooved of the described blade groove of the first side and the second side, translot, skewed slot is respectively the grooved meeting and require to the first side and the second side demoulding.
9. a kind of drill bit as claimed in claim 1, is characterized in that being provided with in the clockwise direction front of the side cutoff edge of described expansion boring the expansion boring of guaranteeing to expand smoothly boring and chip removal and helps and cut room.
10. an installation method for bolt, is characterized in that
Before the mounting, to the matrix bit drills straight hole according to claim 6 need installing bolt, until the shock absorbing drilling depth position limiting structure of described drill bit encounters aperture, then utilize the shock absorbing drilling depth position limiting structure of described drill bit as shock absorbing self adaptation position limiting structure, in the limited situation of drilling depth, drill bit is waved for fulcrum with the support portion of waving of drill bit, thus carry out bottom expansion boring with the side cutoff edge cutting of the dual-purpose blade head of the brill boring of drill bit, formed bottom by expand boring formed bottom side recessed cut bottom outlet, and waving in drill bit process, the Tool in Cutting of processing aperture limited step is utilized to form aperture limited step, the height of limited step exceeds the sleeve top 1-2mm of described bolt,
When mounted, first described bolt being put into and cut bottom outlet, making the spacing aperture limited step with cutting bottom outlet of the fitting depth on sleeve form spacing cooperation; Then, adopt front end with push rod, push rod rear arranges the installation machinery of the screw rod be threaded with the internal thread of hub internal bore, employing spiral way advances, push expansion pin by push rod to push ahead, until the bottom stage face of step that expansion pin is protruded forward coordinates with the anti-breakdown spacing formation of sleeve is spacing, now, the expansion lobe of sleeve by expansion enter the bottom side cutting bottom outlet recessed in, complete installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610031302.4A CN105499664B (en) | 2016-01-18 | 2016-01-18 | A kind of installation method of drill bit and bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610031302.4A CN105499664B (en) | 2016-01-18 | 2016-01-18 | A kind of installation method of drill bit and bolt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105499664A true CN105499664A (en) | 2016-04-20 |
| CN105499664B CN105499664B (en) | 2018-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610031302.4A Active CN105499664B (en) | 2016-01-18 | 2016-01-18 | A kind of installation method of drill bit and bolt |
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| CN (1) | CN105499664B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105772809A (en) * | 2016-05-17 | 2016-07-20 | 刘小蓉 | Drill stem and tool bit of drill bit and manufacturing method of drill bit |
| CN108526550A (en) * | 2018-04-01 | 2018-09-14 | 袁胜利 | A kind of building electricity consumption drill bit with positioning function |
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| US4971486A (en) * | 1987-02-13 | 1990-11-20 | Upat Gmbh & Co. | Undercutting drill |
| CN201276972Y (en) * | 2008-10-21 | 2009-07-22 | 刘杰萍 | Rear expanding drilling bit and rear expanding anchor bolt matched with the same |
| CN201474611U (en) * | 2009-09-09 | 2010-05-19 | 朱国强 | Hole dilating drill |
| CN203679360U (en) * | 2014-01-09 | 2014-07-02 | 徐芳 | Drill bit special for rear expanded-base anchor bolt |
| CN104712251A (en) * | 2015-03-16 | 2015-06-17 | 中铁第四勘察设计院集团有限公司 | Pedestal drill and method for conducting concrete structure rear anchorage through same |
| CN104722813A (en) * | 2013-12-21 | 2015-06-24 | 中建四局安装工程有限公司 | Method and percussion bit for drilling back taper hole in concrete wall |
| CN205733151U (en) * | 2016-01-18 | 2016-11-30 | 杭州斯泰新材料技术有限公司 | A kind of drill bit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4971486A (en) * | 1987-02-13 | 1990-11-20 | Upat Gmbh & Co. | Undercutting drill |
| CN201276972Y (en) * | 2008-10-21 | 2009-07-22 | 刘杰萍 | Rear expanding drilling bit and rear expanding anchor bolt matched with the same |
| CN201474611U (en) * | 2009-09-09 | 2010-05-19 | 朱国强 | Hole dilating drill |
| CN104722813A (en) * | 2013-12-21 | 2015-06-24 | 中建四局安装工程有限公司 | Method and percussion bit for drilling back taper hole in concrete wall |
| CN203679360U (en) * | 2014-01-09 | 2014-07-02 | 徐芳 | Drill bit special for rear expanded-base anchor bolt |
| CN104712251A (en) * | 2015-03-16 | 2015-06-17 | 中铁第四勘察设计院集团有限公司 | Pedestal drill and method for conducting concrete structure rear anchorage through same |
| CN205733151U (en) * | 2016-01-18 | 2016-11-30 | 杭州斯泰新材料技术有限公司 | A kind of drill bit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105772809A (en) * | 2016-05-17 | 2016-07-20 | 刘小蓉 | Drill stem and tool bit of drill bit and manufacturing method of drill bit |
| CN105772809B (en) * | 2016-05-17 | 2019-01-25 | 刘小蓉 | A kind of manufacturing method of drill bit and drill bit |
| CN108526550A (en) * | 2018-04-01 | 2018-09-14 | 袁胜利 | A kind of building electricity consumption drill bit with positioning function |
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| Publication number | Publication date |
|---|---|
| CN105499664B (en) | 2018-07-24 |
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