CN101100092B - Board drilling machine head - Google Patents
Board drilling machine head Download PDFInfo
- Publication number
- CN101100092B CN101100092B CN2007100242301A CN200710024230A CN101100092B CN 101100092 B CN101100092 B CN 101100092B CN 2007100242301 A CN2007100242301 A CN 2007100242301A CN 200710024230 A CN200710024230 A CN 200710024230A CN 101100092 B CN101100092 B CN 101100092B
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- drill bit
- main shaft
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- 238000005553 drilling Methods 0.000 title claims abstract description 24
- 230000007246 mechanism Effects 0.000 claims abstract description 38
- 239000000498 cooling water Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- 230000009471 action Effects 0.000 claims description 15
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 238000004873 anchoring Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
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- Earth Drilling (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The plate drilling machine head includes one main shaft rotating mechanism, one Z-axis feeding mechanism, one cooling water providing mechanism, and one eccentric reaming mechanism. The eccentric reaming mechanism comprises one bit with one pair of first bevels in the tail for controlling its swing, one main shaft with lower end hinged to the middle section of the bit for swinging the bit, one eccentric block with one pair of second bevels to slide fit the first bevels, one shifting block capable of shifting in Z direction, and one reaming stroke acting unit acting on the shifting block in Z direction. The present invention has high quality of drilled hole.
Description
Technical field
The present invention relates to the board drilling machine that a kind of post-cut anchoring decorative board for wall is used, be specifically related to the head that is used to hole on this board drilling machine.
Background technology
Along with the development of building decorating industry, the outward appearance of City Building is not only pursued moulding, and more building begins to pay attention to attractive in appearance, the practicality and the environmental protection of decoration of exterior wall, so curtain wall panel is adopted by increasing building constructor.The City Building curtain wall uses dalles such as slabstone, ceramic wafer or crystallite slabstone more at present, and its fixed form adopts the post-cut anchoring to install more.The post-cut anchoring is installed and need be installed on the exterior wall of building so that adopt post-cut crab-bolt and L type anchor pole that sheet material is hung at dalle back drilling blind hole.But this boring and common boring are different, the first, the hole can not be punched, the second, need get out similar "
" pass of shape, see from the longitudinal section that promptly top is the little straight hole of a diameter, the bottom is the big bottom outlet of a diameter, sees shown in Figure 7.In order to get out this pass, to utilize drill bit to get the straight hole of regulation buried depth earlier usually, utilize the eccentric on the head to force drill bit deflection that bottom outlet is opened up the hole then.It is not only relevant with the positioning accuracy at blind hole center to weigh the drilling quality quality, the more important thing is the shape and size of vestibule, because it is directly connected to the pulling capacity that this hole can bear.The pulling capacity in hole require bottom diameter will open up greatly in theory, and the sidewall of straight hole section is thick under the equal buried depth condition when hanging in order to improve the unstressed back of the body of back of the body bolt.Obviously these require owing to be subjected to the restriction of process conditions such as eccentric and drill bit, and it is very difficult implementing.
As shown in Figure 1, representative drilling machine head mainly is made up of drilling equipment, eccentric, coolant supply apparatus and support more than 4 parts at present.Drilling equipment comprises motor 1 and main shaft 2, and motor 1 links to each other with main shaft 1 by band synchronizing wheel 3 synchronously, and drilling equipment reaches the ribbon gymnastics that cooperates with tooth bar and makes the gear 7 of handle 11 and finish its lifting on frame by being located at frame 5 and tooth bar 6 between the support 4.Eccentric is formed by opening up hole rotary handle 8, bullet 9 and oscillating bearing 10.During boring, earlier with sheet material location and fixing, after starting motor 1, main shaft 2 rotates under the drive of motor 1, the operating grip 11 of leaving behind moves downward drill bit 12, thereby on sheet material, get out the straight hole of predetermined hole diameter, after getting into the regulation buried depth, hole rotary handle 8 is opened up in two of grasping simultaneously, the pressure that this moment, bullet 9 overcame spring 13 moves downward, and departs from the taper hole center simultaneously, and two of grasping are opened up hole rotary handle 8 and remake the horizontal rotation motion then, this moment drill bit 12 with oscillating bearing 10 be the center in Kong Zhongzuo ring-type oscillating motion (as Fig. 4), thereby at the bottom of the hole, grind out the recessed bottom outlet of side (as Fig. 6).Though above-mentioned drilling machine head has solved the problem that gets out band side concave bottom hole, bottom on sheet material, owing to be subjected to the restriction of above-mentioned eccentric stiffener, its boring die cavity is not good, and stability is bad, and the unstressed back of the body that directly influences its pulling capacity and back of the body bolt is hung effect; Above-mentioned in addition head also exists structure and complicated operation, problem such as easy-maintaining and drill bit be not easy to wear.Therefore, how to solve the problem that existing head exists, making boring have better die cavity is the present invention's problem of research emphatically.
Summary of the invention
The invention provides a kind of head of board drilling machine, its purpose mainly is to solve the not good problem of existing drilling machine head boring pass, thereby improves boring pass quality, the pulling capacity in hole when hanging with the unstressed back of the body of further raising back of the body bolt.
For achieving the above object, the technical solution used in the present invention is: a kind of head of board drilling machine, comprise that main shaft gyration mechanism, Z axle feed mechanism, cooling water supply structure and off-centre opens up holes mechanism, described main shaft gyration mechanism comprises motor and drill spindle, motor is rack-mount and be connected through synchronous band synchronizing wheel with drill spindle, and described motor is a variable-frequency motor; Described Z axle feed mechanism comprises Z to guide rail, feed distance actuation gear, position-limit mechanism, and position-limit mechanism is made up of upper limit structure and lower limit structure, and wherein, feed distance actuation gear is the feeding cylinder; The upper limit structure is the upper limit sensor; The lower limit structure is made of lower limit sensor and removable limited block, and removable limited block is installed in the guide rod top, and the guide rod bottom is connected with lower platen, and limited block is moved with guide rod, and lower limit sensor correspondence is located at the Z of limited block on motion path; Described cooling water supply structure comprises water swiveling head, water feed apparatus,
Wherein the water swiveling head fixes on the main shaft through water seal and mechanical sealing; Described off-centre is opened up holes mechanism mainly by drill bit, described main shaft, wobbler action piece, movable block with open up hole stroke actuation gear and constitute, and described drill bit is " L " shape; The described hole stroke actuation gear that opens up is for opening up the hole cylinder, described main shaft lower end and drill bit stage casing are hinged through pin, make the described relatively main shaft of drill bit can swing deflection, the drill bit afterbody is provided with a pair of first inclined-plane of its swing deflection of control, the wobbler action piece is positioned at the drill bit top, corresponding first inclined-plane, its underpart is provided with a pair of second inclined-plane, described a pair of first inclined-plane forms side slip with a pair of second inclined-plane with uneven form and cooperates, the wobbler action piece is installed in along Z and is rotationally connected in described main shaft gyration direction on the movable block that moves and with movable block, open up hole stroke actuation gear at Z to acting on movable block.
Related content in the technique scheme is explained as follows:
1, in the such scheme, described Z axle feed mechanism comprises Z to guide rail, stroke actuation gear, position-limit mechanism, and wherein " Z to " is meant the direction perpendicular to horizontal plane.Stroke actuation gear is meant a kind of mechanism's general name that can produce the stroke impetus, this mechanism generally can be divided into manually and automatic two kinds, described self-act travel actuation gear can be a cylinder, also can be the screw-nut body of driven by motor, can also be linear electric motors, electromagnetic mechanism, hydraulic mechanism or the like.Described manual stroke actuation gear such as screw-nut body, pinion and rack, leverage or the like.Position-limit mechanism is made up of upper limit structure and lower limit structure, wherein, the upper limit structure is meant the upper limit sensor, the lower limit structure is made of lower limit sensor and removable limited block, removable limited block is installed in the guide rod top, the guide rod bottom is connected with lower platen, and limited block is moved with guide rod, and lower limit sensor correspondence is located at the Z of limited block on motion path.
2, in the such scheme, described cooling water supply structure comprises water swiveling head, water feed apparatus, and wherein the water swiveling head fixes on the main shaft through water seal and mechanical sealing.
3, in the such scheme, described drill bit is " L " shape, also can be prior art
The shape drill bit.
4, in the such scheme, described main shaft is a Hollow Cylindrical Shaft, and cooling water is through its hollow drill bit that flow to.
5, in the such scheme, the described hole stroke actuation gear that opens up is for opening up the hole cylinder or opening up the hole rotary handle.
6, in the such scheme, described " wobbler action piece and movable block are rotationally connected in the main shaft gyration direction " is meant that wobbler action piece and movable block rotate with the realization of bearing connected mode in the main shaft gyration direction.
Because the technique scheme utilization, the present invention compared with prior art has following advantage:
1, because the present invention adopts main shaft lower end and drill bit stage casing hinged through pin, make the relative main shaft of drill bit can swing deflection, when open up the hole cylinder at Z when acting on movable block, movable block through bearing drive the wobbler action piece along guide post at Z to moving, a pair of second inclined-plane cooperates with uneven form formation side slip with corresponding a pair of first inclined-plane of drill bit afterbody and its on the wobbler action this moment piece, cause the relative main shaft deflection of drill bit, adopt " L " shape drill bit again, make that the die cavity of drilling bore hole is better, and borehole stability, reliably, overcome the bad problem of bottom outlet die cavity that in the past got out.The difference that can make bottom outlet radius and straight hole radius through experiment this programme is increased to 1.8mm from 1.4mm in the past, under the situation of identical buried depth, the thickness of the corresponding sheet material wall of its straight hole has increased 2mm than in the past, improve the quality of boring pass, and further improved the pulling capacity in hole when the unstressed back of the body of back of the body bolt is hung.
2, since lower limit of the present invention mechanism constitute with the removable limited block that is installed in the guide rod top that is connected with lower platen by the lower limit sensor, removable limited block makes limited block move with guide rod, lower limit sensor correspondence is located at the Z of limited block on motion path, can limit drilling depth accurately, feasible boring is more stable, and the quality of drilling bore hole is more reliable.
3, because water seal and the double envelope of machinery envelope are adopted in backwater rotary head of the present invention, reinforced its intensity, overcome in the past in the working time and can leak easily after long and the driven by motor spindle operation causes that vibrations make its problem of fracture easily.
4, because the present invention adopts frequency modulation motor, can make the boring main shaft reach higher rotating speed, finishing mills opens up the hole, and ceramic board is more useful for boring.
5, the present invention is simple in structure, and is easy to maintenance.
Description of drawings
Accompanying drawing 1 is present representative drilling machine handpiece structure schematic diagram;
Accompanying drawing 2 structural representations of the present invention;
Accompanying drawing 3 is opened up the holes mechanism schematic diagram for water swiveling head of the present invention and off-centre;
Accompanying drawing 4 is the schematic diagram of at present representative drill;
Accompanying drawing 5 is the schematic diagram of embodiment of the invention drill bit;
Accompanying drawing 6 is for utilizing the die cavity generalized section of existing drilling machine and Fig. 4 bit bore;
Accompanying drawing 7 is for utilizing the die cavity generalized section of the embodiment of the invention and Fig. 5 bit bore.
In the above accompanying drawing: 1, motor; 2, main shaft; 3, be with synchronizing wheel synchronously; 4, support; 5, frame; 6, tooth bar; 7, gear; 8, open up the hole rotary handle; 9, bullet; 10, oscillating bearing; 11, operating grip; 12, drill bit; 13, spring; 14, main shaft; 15, drill bit; 16, wobbler action piece; 17, movable block; 18, open up the hole cylinder; 19, bearing; 20, Z guide rail; 21, mount pad; 22, support; 23, feeding cylinder; 24, upper limit sensor; 25, lower limit sensor; 26, limited block; 27, guide rod; 28, spring; 29, lower platen; 30, through hole; 31, variable-frequency motor; 32, be with synchronizing wheel synchronously; 33, water swiveling head; 34, water inlet; 35, water seal; 36, machinery envelope; 37, pin; 38, first inclined-plane; 39, second inclined-plane; 40, guide post; 41, sliding shoe; 42, counterbore.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is further described:
Embodiment: as shown in Figures 2 and 3, a kind of head of board drilling machine comprises that main shaft gyration mechanism, Z axle feed mechanism, cooling water supply structure and off-centre opens up holes mechanism.
Off-centre is opened up holes mechanism mainly by drill bit 15, main shaft 14, wobbler action piece 16, movable block 17 with open up hole cylinder 18 and constitute, drill bit 15 pommels are provided with taper counterbore 42, this counterbore 42 is greater than the main shaft lower end diameter, the lower end of main shaft 14 is stretched in this counterbore 42, and sell bolt 37 and drill bit 15 hinged (see figure 3)s at the position, stage casing, make drill bit 15 relative main shafts 14 can swing deflection, promptly drill bit 15 still can be the basic point swing with the hinged place.Drill bit 15 afterbodys are provided with a pair of first inclined-plane 38 (see figure 3)s of its swing deflection of control, wobbler action piece 16 is positioned at drill bit 15 tops, corresponding first inclined-plane 38, its underpart is provided with a pair of second inclined-plane 39, a pair of first inclined-plane 38 forms side slip with a pair of second inclined-plane 39 with uneven form and cooperates, wobbler action piece 16 is installed in along Z and is connected through bearing 19 at main shaft 14 gyratory directions on the movable block 17 that moves and with movable block 17, open up hole cylinder 18 at Z to acting on movable block 17.Above-mentioned a pair of first inclined-plane 38 is made of two lateral surfaces of convex, and a pair of second inclined-plane 39 is made of two medial surfaces of spill.If but two medial surfaces that a pair of first inclined-plane 38 is changed into by spill constitute, two lateral surfaces that a pair of second inclined-plane 39 changes into by convex constitute, and so also can realize being slidingly matched between the two.
Z axle feed mechanism is made up of to guide rail 20, sliding shoe 41, stroke actuation gear and position-limit mechanism Z, wherein Z is located on the mount pad 21 to guide rail 20, sliding shoe 41 is installed on the support 22, Z cooperates the slide-and-guide effect of playing to guide rail 20 with sliding shoe 41, stroke actuation gear is a feeding cylinder 23, and this feeding cylinder 23 acts on the Z direction of mount pad 21 and support 22.Position-limit mechanism comprises upper limit sensor 24 and the lower limit sensor 25 that is installed on the support 22 and is positioned at replaceable limited block 26 under the lower limit sensor 25, limited block 26 is installed in Z directly over guide rod 27, Z connects lower platen 29 to guide rod 27 by spring 28, and the center of lower platen 29 is provided with the through hole 30 that can supply drill bit 15 to pass.
Main shaft gyration mechanism comprises motor 31 and main shaft 14, and motor 31 is installed on the support 22 and with main shaft 14 and is connected through synchronous band synchronizing wheel 32, and wherein motor 31 is a variable-frequency motor.
The cooling water supply structure comprises water swiveling head 33 and water feed apparatus (not drawing among the figure), by water inlet 34 input cooling waters, enters in the main shaft 14 through water swiveling head 33, and wherein water swiveling head 33 is fixed on the main shaft 14 through water seal 35 and machinery envelope 36.
During boring, earlier with sheet material to be processed location and fixing, after starting variable-frequency motor 31, variable-frequency motor 31 drives main shaft 14 by synchronous band synchronizing wheel 32 and rotates, simultaneously by water inlet 34 input cooling waters, enter in the main shaft 14 through water swiveling head 33, this moment, the rotary speed of main shaft 14 was accelerated gradually, operation control panel is set the head position, by feeding cylinder 23 head is moved downward along Z guide rail 20, when touching sheet material, drill bit 15 just begins the straight hole of drill ga(u)ge set aperture and buried depth, when limited block 26 touches lower limit sensor 25, drill bit 15 promptly gets into the regulation buried depth on sheet material to be processed, behind the time-delay 5s, open up hole cylinder 18 drive movable blocks 17 along Z to moving down, movable block 17 drives wobbler action piece 16 by bearing 19 and moves down along guide post 40, this moment, a pair of first inclined-plane 38 cooperated the formation side slip with a pair of second inclined-plane 39 with uneven form, make drill bit 15 tilt, cause the center line of drill bit 15 and the rotation of main shaft 14 to have certain included angle, drill bit 15 is that ring-type oscillating motion (as Fig. 5) is done at the center with pin 37 in rotation, thereby at the bottom of the hole, grind out the recessed bottom outlet of side, finish and open up the hole.
Relatively prior art is opened up the die cavity (as Fig. 6) that portals and the present invention with drill bit (as Fig. 4) and is opened up the die cavity (as Fig. 7) that portals as can be seen with drill bit (as Fig. 5), the drill bit that uses same diameter is under the situation of identical buried depth h, the bottom outlet radius d1＜d2 that opens up out, and the thickness h 1＜h2 of the corresponding sheet material wall of its straight hole, as seen the die cavity (as Fig. 7) that uses drill bit of the present invention (as Fig. 5) to open up to portal is significantly better than using prior art drill bit (as Fig. 4) die cavity (as Fig. 6) that portals of opening up, solve the not good problem of existing drilling machine head boring pass, thereby improved the pass quality of boring and carried on the back the unstressed back of the body of bolt the pulling capacity in hole when hanging.
The foregoing description only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalences that spirit essence is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (2)
1. the head of a board drilling machine, comprise that main shaft gyration mechanism, Z axle feed mechanism, cooling water supply structure and off-centre opens up holes mechanism, it is characterized in that: described main shaft gyration mechanism comprises motor and drill spindle, motor is rack-mount and be connected through synchronous band synchronizing wheel with drill spindle, and described motor is a variable-frequency motor; Described Z axle feed mechanism comprises Z to guide rail, feed distance actuation gear, position-limit mechanism, and position-limit mechanism is made up of upper limit structure and lower limit structure, and wherein, feed distance actuation gear is the feeding cylinder; The upper limit structure is the upper limit sensor; The lower limit structure is made of lower limit sensor and removable limited block, and removable limited block is installed in the guide rod top, and the guide rod bottom is connected with lower platen, and limited block is moved with guide rod, and lower limit sensor correspondence is located at the Z of limited block on motion path; Described cooling water supply structure comprises water swiveling head, water feed apparatus, and wherein the water swiveling head fixes on the main shaft through water seal and mechanical sealing; Described off-centre is opened up holes mechanism mainly by drill bit, described main shaft, wobbler action piece, movable block with open up hole stroke actuation gear and constitute, and described drill bit is " L " shape; The described hole stroke actuation gear that opens up is for opening up the hole cylinder, described main shaft lower end and drill bit stage casing are hinged through pin, make the described relatively main shaft of drill bit can swing deflection, the drill bit afterbody is provided with a pair of first inclined-plane of its swing deflection of control, the wobbler action piece is positioned at the drill bit top, corresponding first inclined-plane, its underpart is provided with a pair of second inclined-plane, described a pair of first inclined-plane forms side slip with a pair of second inclined-plane with uneven form and cooperates, the wobbler action piece is installed in along Z and is rotationally connected in described main shaft gyration direction on the movable block that moves and with movable block, open up hole stroke actuation gear at Z to acting on movable block.
2. the head of board drilling machine according to claim 1, it is characterized in that: described elasticity lower platen is positioned under the drill bit, and its center is provided with the through hole that can pass for drill bit, and the lower surface of elasticity lower platen is provided with soft layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100242301A CN101100092B (en) | 2007-07-24 | 2007-07-24 | Board drilling machine head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100242301A CN101100092B (en) | 2007-07-24 | 2007-07-24 | Board drilling machine head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101100092A CN101100092A (en) | 2008-01-09 |
| CN101100092B true CN101100092B (en) | 2010-10-13 |
Family
ID=39034620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100242301A Expired - Fee Related CN101100092B (en) | 2007-07-24 | 2007-07-24 | Board drilling machine head |
Country Status (1)
| Country | Link |
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| CN (1) | CN101100092B (en) |
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| US5163789A (en) * | 1990-03-09 | 1992-11-17 | Fischerwerke Artur Fischer Gmbh & Co. Kg | Device for producing drilled holes with an undercut |
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| CN101100092A (en) | 2008-01-09 |
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