CN106424857B - Trepanning device assembly - Google Patents
Trepanning device assembly Download PDFInfo
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- CN106424857B CN106424857B CN201510494246.3A CN201510494246A CN106424857B CN 106424857 B CN106424857 B CN 106424857B CN 201510494246 A CN201510494246 A CN 201510494246A CN 106424857 B CN106424857 B CN 106424857B
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- hole saw
- centre drill
- lock body
- lock
- hole
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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
- B23B51/04—Drills for trepanning
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- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
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Abstract
Trepanning device assembly, including crown saw, hole saw lock and centre drill, equipped with the locking device for locking or unlocking axial position of the centre drill in sliding slot between centre drill and hole saw lock, locking device connects one and generates the trigger device for reacting action when hole saw is contacted with machined material；Locking device is under the promotion of trigger device, axial position of the unlock centre drill in sliding slot.At cutting initial stage, centre drill is locked in hole saw lock, plays certralizing ability；After hole saw starts cutting, latched position of the centre drill in hole saw lock is unlocked, and centre drill does not increase with the increase of hole saw depth, and depth is pierced to control centre drill on machined material, is conducive to quickly removal waste material, is improved drilling efficiency.
Description
Technical field
The present invention relates to a kind of trepanning device assemblies.
Background technology
As shown in Figure 1, when drilling using hole making drill, the cooperation of hole saw lock 1 ', shank and the rotation of hole saw lock 1 ' are needed
Power plant is connected, and head is connect by screw thread and pin with hole saw 2 ', to realize that the effect for transmitting torque, hole saw lock 1 ' are interior
Centre bore centre drill 3 ' is installed, drill bit head is higher by the cutting tooth plane of hole saw 2 ' so that hole saw 2 ' cut just
Stage beginning, centre drill 3 ' can play the role of positioning.
As shown in Fig. 2, the centre drill 3 ' for the hole making drill being commonly used all is fixedly mounted in hole saw lock 1 ', this
So that together must be drilled through machined material in company with hole saw 2 ' for the centre drill 3 ' of positioning action in drilling process, cause
After drilling, waste cut materials are full of between 2 ' inner wall of centre drill 3 ' and hole saw, waste material is clamped on 2 ' inner wall of hole saw.Due in
It is fluted drill that the heart, which bores 3 ', and waste material is incorporated in along the helix of drill bit on centre drill 3 ', needs to exit in rotation, this is increased by
The difficulty that waste material exits, generally requires could to be stripped by beaing for tool, time-consuming and laborious, seriously affects drilling effect
Rate.
Invention content
In order to overcome prior art waste material to exit difficult disadvantage, the present invention provides a kind of hole making drill group for being easy to exit waste material
Part.
The technical solution adopted by the present invention is：
Trepanning device assembly, including the hole saw of cylindrical shape, hole saw lock and centre drill, hole saw are fastened on hole saw and lock, hole
Power plant of the saw lock connection for output torque；Rodlike centre drill passes through the center of hole saw and is connected to hole saw and locks, with
Just the torque that hole saw lock transmits is obtained；The centre drill, hole saw, hole saw lock coaxial arrangement；Hole saw lock includes substantially in cylinder
Lock body, fixed block and the clamping block of shape, fixed block and clamping block are set on the lock body, and fixed block is affixed with lock body；
The axial line of the lock body is equipped with sliding slot, and the centre drill is slidably disposed in the sliding slot,
There is key connection between the centre drill and lock body on the direction of rotation of the torque；Between the centre drill and lock body
Equipped with the first spring；
Equipped with for locking or unlocking the centre drill in the sliding slot between the centre drill and hole saw lock
The locking device of interior axial position, locking device, which connects one and generated when hole saw is contacted with machined material, reacts action
Trigger device；
The locking device unlocks axial direction of the centre drill in the sliding slot under the promotion of trigger device
Position.
Further, the hole saw is affixed with clamping block by pin rod, and pin rod passes through the fixed block；The clamping block
It is rotatably sleeved on the lock body；
During the locking device includes the first positioning ball being arranged between the centre drill and the lock body and is described
The first locating slot on heart drill shank, first positioning ball are arranged in the first radial hole on the lock body；Described
First positioning ball connects a toggle mechanism, the toggle mechanism connection trigger device；
The trigger device is made of the hole saw and pin rod, and the pin rod is threaded through the week on fixed block
Into arc groove；When hole saw and machined material contact, the moment of reaction that machined material is applied to hole saw pushes pin rod
The second position is turned to from first position with clamping block, completes the unlocking motion of locking device；
Pin rod and clamping block oppress toggle mechanism when being located at first position, toggle mechanism oppresses the first positioning ball, and first
A part for positioning ball enters in the first locating slot, the axial position being drilled in so as to locked-center in the sliding slot；Pin rod
When being located at the second position with clamping block, the compressing to toggle mechanism is released, the first positioning ball exits the first locating slot, to solve
Axial position of the lock centre drill in the sliding slot.
Preferably, the toggle mechanism is the first pin, and the first pin is arranged in the first radial hole, the first pin
End is located on the movement locus of the pin rod.
Alternatively, the toggle mechanism is the inner wall of the clamping block and the second radial hole for being opened on clamping block inner wall,
And first the diameter of positioning ball be more than the depth of the first radial hole, the internal diameter of the second radial hole is less than the straight of the first positioning ball
Diameter；When pin rod and clamping block are located at the second position, the second radial hole is directed at the first radial hole.
Further, the first preliminary latch means are equipped between the clamping block and the lock body；
First preliminary latch means include the second positioning ball for being arranged between the clamping block and the lock body and
The second locating slot on the lock body, second positioning ball is arranged in the third radial hole on the clamping block, described
Be additionally provided with a third spring part for second positioning ball being pressed in second locating slot in third radial hole.
Further, the second preliminary latch means are equipped between the lock body and the centre drill；
Second preliminary latch means include the third positioning ball that is arranged between the centre drill and the lock body and
Third locating slot on the center drill shank, it is described in the 4th radial hole that the third positioning ball is arranged on lock body
Be additionally provided with a 4th spring part for the third positioning ball being pressed in the third locating slot in 4th radial hole.
Further, first locating slot is the circumferentially disposed annular groove along the centre drill, and second prelock
The third locating slot and first locating slot for determining device coincide.
Further, the pin rod is connected with the 5th spring.
Alternatively, as a preferred mode, the locking device includes the between centrally disposed brill and lock body
The first locating slot on two pins and the center drill shank, in the first radial hole that second pin is arranged on lock body,
First pin connects second spring；The head of second pin is inserted into the first locating slot and is drilled in so as to locked-center in the sliding slot
Axial position；
The trigger device includes the casing being slideably sleeved on outside centre drill, the lower end of described sleeve pipe and hole saw
Sawtooth flush, the upper end of described sleeve pipe is equipped with the inclined-plane with second bayonet fittings；
When hole saw and machined material contact, casing is relative to centre drill upward sliding, described in inclined-plane driving
Shop bolt is detached from first locating slot, completes the unlocking motion of locking device.
Further, gasket is fixed on the top surface of the hole saw, the hole saw passes through the gasket and the clamping block phase
Even.
The direction of axis line of lock body is defined as axial direction by the present invention, the axial line towards the direction of hole saw be lower section,
Other direction is top.
It is center first since the drill bit of centre drill is higher by the cutting tooth plane of hole saw during the use of the present invention
It is drilled on machined material and beats location hole, and hole saw does not contact machined material, centre drill locking means are locked in lock at this time
In vivo.When hole saw touches machined material, trigger device causes locking device to unlock, and it is axial in sliding slot to release centre drill
The locking of position, centre drill can be slided up and down freely in sliding slot, as hole saw deepens continuously machined material, centre drill
Under the obstruction of machined material, can constantly it shrink back upwards, i.e. into lock body along sliding slot, while compressing the first spring, then center
The depth pierced in machined material will not increase with the continuing to cut of hole saw.
After the completion of trepanning, trepanning device assembly is extracted from machined material, among not going deep into waste material due to centre drill,
Waste cut materials in removal hole saw need to only overcome the resistance between waste material and hole saw inner wall, and one-way force applying can exit useless in an axial direction
Material, no longer needs to the spinning movement for doing waste material, this is greatly lowered the difficulty of removal waste material.After waste material is removed, centre drill
It is resetted under the promotion of the first spring, if the binding force of waste material and hole saw is smaller, the pressure of the first spring is just enough will be in hole saw
Waste material release, realize automatic material returning.
The present invention creatively changes the centre drill of trepanning device assembly and the connection relation of lock body, will be in the prior art
The relationship of being fixedly connected is changed into can unlock axial position of the centre drill in lock body in Tapping procedures so that centre drill will not be deep
Enter in machined material, reduces the difficulty for taking out waste material, improve the working efficiency of trepanning.
Beneficial effects of the present invention are embodied in：
Lock body internal cause waste material caused by cutting can be rapidly removed, it is time saving and energy saving, effectively increase drilling efficiency.
Description of the drawings
Fig. 1 is the sectional view of trepanning device assembly in the prior art
Fig. 2 is that centre drill is fixedly mounted on the structural schematic diagram in hole saw lock in the prior art
Fig. 3 is the overall structure diagram of the present invention
Fig. 4 is hole saw lock and centre drill matching in the locked state in embodiment 1, embodiment 2, embodiment 3 and embodiment 4
Close structural schematic diagram
Fig. 5 is the left view of Fig. 4
Fig. 6 is the front view of Fig. 4
Fig. 7 is the Structure explosion diagrams of Fig. 4 from right to left
Fig. 8 is the Structure explosion diagrams of Fig. 4 from left to right
Fig. 9 is the sectional view of Fig. 4
Figure 10 is enlarged drawing at A in Fig. 9
Figure 11 be in Fig. 6 E-E to sectional view
Figure 12 be in Fig. 6 F-F to sectional view
Figure 13 be in Fig. 6 G-G to sectional view
Figure 14 is that hole saw lock and centre drill be in the unlocked state in embodiment 1, embodiment 2, embodiment 3 and embodiment 4
Fit structure schematic diagram
Figure 15 is the left view of Figure 14
Figure 16 is the front view of Figure 14
Figure 17 be in Figure 16 H-H to sectional view
Figure 18 be in Figure 16 M-M to sectional view
Figure 19 be in Figure 16 N-N to sectional view
Figure 20 is the sectional view of Figure 14
Figure 21 is enlarged drawing at B in Figure 20
Figure 22 is hole saw lock and the fit structure schematic diagram of centre drill in the locked state in embodiment 5 and embodiment 6, with
Fig. 4 is in appearance the difference is that used centre drill of different shapes
Figure 23 is the left view of Figure 22
Figure 24 is the Structure explosion diagrams of Figure 22 from right to left, and wherein the cross section of centre drill is circle
Figure 25 is the Structure explosion diagrams of Figure 22 from left to right
Figure 26 is the front view of Figure 22
Figure 27 be in Figure 26 I-I to sectional view
Figure 28 be in Figure 26 J-J to sectional view
Figure 29 is the semi-cutaway of Figure 22
Figure 30 is the partial cutaway figure of Figure 22
Figure 31 is enlarged drawing at C in Figure 30
Figure 32 is hole saw lock and the fit structure schematic diagram of centre drill in the unlocked state in embodiment 5 and embodiment 6
Figure 33 is the left view of Figure 32
Figure 34 is the front view of Figure 32
Figure 35 be in Figure 34 K-K to sectional view
Figure 36 be in Figure 34 L-L to sectional view
Figure 37 is the partial cutaway figure of Figure 32
Figure 38 is the semi-cutaway of Figure 32
Figure 39 is enlarged drawing at D in Figure 38
Figure 40 is hole saw lock and the fit structure schematic diagram of centre drill in the locked state in embodiment 7
Figure 41 is the left view of Figure 40
Figure 42 is the front view of Figure 40
Figure 43 be in Figure 42 M-M to sectional view
Figure 44 is the Structure explosion diagrams of Figure 40 from right to left
Figure 45 is the Structure explosion diagrams of Figure 40 from left to right
Figure 46 is the partial cutaway figure of Figure 40
Figure 47 is the semi-cutaway of Figure 40
Figure 48 is enlarged drawing at the E of Figure 47
Figure 49 is the overall structure diagram of centre drill in the unlocked state in embodiment 7
Figure 50 is the front view of Figure 49
Figure 51 be in Figure 50 N-N to sectional view
Figure 52 is sectional view when the second pin is jacked up by the first inclined-plane
Figure 53 is enlarged drawing at F in Figure 52
Figure 54 is the second pin by the partial sectional view behind the second inclined-plane completely ejection
Figure 55 is the second pin by the semi-cutaway behind the second inclined-plane completely ejection
Figure 56 is enlarged drawing at H in Figure 55
Figure 57 is the overall structure diagram of casing
Figure 58 is the dimensional structure diagram of first the second pin of inclined-plane pushing tow
Figure 59 is the dimensional structure diagram of second the second pin of inclined-plane pushing tow
Figure 60 is the second pin by the dimensional structure diagram behind the second inclined-plane completely ejection
Figure 61 be latch at the notch of the second guide groove when dimensional structure diagram
Figure 62 be latch at the slot bottom of the second guide groove when dimensional structure diagram
Figure 63 is the structural schematic diagram of gasket
Figure 64 is gasket and the matched structural schematic diagram of smaller hole saw
Figure 65 is the overall structure sectional view for the present invention that gasket is added when hole saw is smaller
Specific implementation mode
Embodiment 1
The present embodiment is with reference to Fig. 3-Figure 21.
With reference to Fig. 3, trepanning device assembly, including the hole saw 2 of cylindrical shape, hole saw lock 1 and centre drill 3, hole saw 2 are fastened on
On hole saw lock 1, power plant of 1 connection of hole saw lock for output torque；Rodlike centre drill 3 passes through the center of hole saw 2 and company
It is connected on hole saw lock 1, to obtain the torque that hole saw lock 1 transmits；Centre drill 3, hole saw 2,1 coaxial arrangement of hole saw lock.With reference to figure
4, Fig. 7 and Fig. 8, hole saw lock 1 include substantially cylindrical lock body 11, fixed block 12 and clamping block 13, fixed block 12 and locking
Block 13 is respectively sleeved on lock body 11, and fixed block 12 and lock body 11 are affixed, and clamping block 13 is rotatably sleeved on by clamp spring 114
On lock body 11, lock body 11 is equipped with card slot corresponding with clamp spring 114；Hole saw 2 is affixed by pin rod 14 and clamping block 13, pin rod
14 pass through the circumferentially arcuate slot 123 on fixed block 12.
With reference to Fig. 9, the axial line of lock body 11 is equipped with sliding slot 111, and centre drill 3 is slidably disposed in sliding slot 111, in
The heart bores and is equipped with the first spring 112 between 3 and lock body 11, and one end and the centre drill 3 of the first spring 112 contradict, the other end and lock body
Holding screw 113 contradicts；There is key connection between centre drill 3 and hole saw lock 1 on the direction of rotation of torque.
Centre drill 3 includes head and shank, and head is spiral bit shape, and shank is that can transmit the cross section of torque to be
There is the rodlike of one or the closed figure of one or more straight flange.
Sliding slot 111 is matched with 3 handle shapes of centre drill, and cross section is to have one or the annular of one or more straight flange
The centre bore of figure allows centre drill 3 to be slided up and down in sliding slot 111.
Equipped with for locking or unlocking axial position of the centre drill 3 in sliding slot 111 between centre drill 3 and hole saw lock 1
Locking device, locking device connect one when hole saw 2 is contacted with machined material generate react act trigger device；
Locking device is under the promotion of trigger device, axial position of the unlock centre drill 3 in sliding slot 111.
With reference to Fig. 7-Figure 11, locking device includes centrally disposed 51 He of the first positioning ball bored between 3 and lock body 11
The first locating slot 53 on 3 shank of centre drill, in the first radial hole 54 that the first positioning ball 51 is arranged on lock body 11, first
Radial hole 54 can extend on fixed block 12 from lock body 11；First positioning ball 51 connects a toggle mechanism, stirs machine
Structure connects trigger device.
With reference to Fig. 3, Fig. 4, trigger device is made of hole saw 2 and pin rod 14, and pin rod 14 is threaded through on fixed block 12
In circumferentially arcuate slot 123；When hole saw 2 and machined material contact, the moment of reaction that machined material is applied to hole saw 2 pushes away
Dynamic pin rod 14 and clamping block 13 turn to the second position from first position, complete the unlocking motion of locking device.
With reference to Fig. 9-Figure 11, pin rod 14 and clamping block 13 oppress toggle mechanism, toggle mechanism compressing when being located at first position
A part for first positioning ball 51, the first positioning ball 51 enters in the first locating slot 53, so that locked-center bores 3 in sliding slot
Axial position in 111；When 7, Figure 20 and Figure 21 referring to Fig.1, pin rod 14 and clamping block 13 are located at the second position, release to stirring
The compressing of mechanism, the first positioning ball 51 exit the first locating slot 53, to unlock axial position of the centre drill 3 in sliding slot 111
It sets.
With reference to Fig. 9-Figure 11 and Figure 17, in the present embodiment, toggle mechanism is the first pin 52, and the setting of the first pin 52 is the
In one radial hole 54, the end of the first pin 52 is located at pin rod 14 on the movement locus in circumferentially arcuate slot 123.
The operation principle of the present embodiment is as follows：
The starting stage is cut, locking device is in the lock state, because the cutting tooth that the drill bit of centre drill 3 is higher by hole saw 2 is flat
Location hole is beaten in face, only centre drill 3 on machined material, and centre drill 3 needs to be fixed on lock body 11 by locking device at this time
It is interior.With reference to Fig. 7-Figure 13, when locking device locks, pin rod 14 is located at first position, and pin rod 14 oppresses the first pin 52, the first pin
52 51 part of the first positioning ball of compressing of nail is caught in the first locating slot 53, and centre drill 3 is locked in sliding slot 111.
After centre drill 3 pierces certain depth on machined material, hole saw 2 touches machined material and starts to cut
It cuts, but the moment of machined material, the powerful moment of reaction that hole saw 2 can be generated by moment is cut in hole saw 2, and drive
Pin rod 14 and clamping block 13 are rotated along the direction opposite with cutting direction so that pin rod 14 relieves the pressure to the first pin 52
To compel, then the first pin 52 relieves the compressing to the first positioning ball 51, and the first positioning ball 51 exits the first locating slot 53, in
The heart bores the 3 axial lock position in sliding slot 111 and is unlocked, referring to Fig.1 4- Figure 21.
After axial position of the centre drill 3 in sliding slot 111 obtains unlock, centre drill 3 can slide in sliding slot 111, make
Centre drill 3 drill bit by machined material drag effect when can be with upward sliding, therefore centre drill 3 pierces processed material
The depth of material can remain unchanged, i.e., will not increase with the continuing to cut of hole saw 2, in this way, on the one hand so that centre drill 3 can be with
Continue to undertake positioning action, on the other hand centre drill 3 pierces the depth on machined material and can make than shallower after cutting
Obtaining waste material will not connect along the drill bit thread line of centre drill 3, and removal waste material need only overcome the resistance between 2 inner wall of waste material and hole saw
Power, as long as one-way force applying in an axial direction, you can make waste material exit, bore 3 without rotation center, greatly reduce the difficulty of removal waste material
Degree.After waste material is removed, centre drill resets under the promotion of the first spring 112, at this time if the binding force of waste material and hole saw 2
Smaller, the thrust of the first spring 112 can release the waste material in hole saw 2, realize automatic material returning.
Embodiment 2
In addition to the attached drawing with reference to embodiment 1, the present embodiment is also needed with reference to Figure 63-Figure 65.
The present embodiment and embodiment 1 difference lies in：Be fixed with gasket 8 on the top surface of hole saw 2, hole saw 2 by gasket 8 with
Clamping block 13 is connected.
With reference to Figure 63-Figure 65, gasket 8 is fixed on the top surface of hole saw 2, gasket 8 connects clamping block 13 by pin rod 14.Pad
Piece 8 is equipped with the matched card slot 81 in top surface with hole saw 2, and card slot 81 is equipped with the latch 811 for blocking hole saw 2, gasket 8
On be additionally provided with and 14 matched jack 82 of pin rod.
The present embodiment be particularly suitable for hole saw 2 top surface be less than clamping block 13 cross section situation, because of the top surface of hole saw 2
It is not enough to across pin rod 14, therefore separately sets the larger gasket 8 in cross section, make clamping block 13 by being fixedly connected come real with gasket 8
Now with the connection of hole saw 2.
The other embodiment of the present embodiment is same as Example 1.
Embodiment 3
The present embodiment is with reference to Fig. 3-Figure 21.
The present embodiment the difference from example 2 is that：The first preliminary latch means are installed between lock body 11 and clamping block 13 additional
4；The second preliminary latch means 6 are installed between lock body 11 and centre drill 3 additional.
Clamping block 13, the axial position between centre drill 3 and lock body 11 of the present invention has stringent assembly relation, to ensure
The first locating slot that first positioning ball centring of locking device bores.For the ease of assembling, in clamping block 13 and lock body
It is equipped with the first preliminary latch means 4 between 11, the second preliminary latch means 6 are equipped between centre drill 3 and lock body 11.13 sets of clamping block
When on lock body 11, the first preliminary latch means 4 can prompt the effect of the installation site of clamping block 13；Centre drill 3 is packed into lock body
When in 11, the second preliminary latch means 6 can prompt the installation site of locking device, to improve the accuracy and convenience of assembly.
In addition, when the present invention starts, in order to drive clamping block 13 to rotate, need to overcome larger inertia.At this point, first
Preliminary latch means 4, which can play, to be overcome the inertia of clamping block 13, keeps circumferential relative position between clamping block 13 and lock body 11 constant
Effect.
First preliminary latch means 4 include the second positioning ball 41 being arranged between clamping block 13 and lock body 11 and lock body 11
On the second locating slot 45, the second positioning ball 41 is arranged in the third radial hole 44 on clamping block 13, third radial hole 44
Inside be additionally provided with the third spring 42 and the second clamp screw a part for the second positioning ball 41 being pressed in the second locating slot 45
Nail 43.
The operation principle of first preliminary latch means 4 is：With reference to Fig. 7-Figure 10 and Figure 13, the second positioning ball 41 is in third bullet
Under the compressing of spring 42 and the second holding screw 43, it is partially submerged on lock body in corresponding second locating slot 45, on the one hand strengthens
Circumferential bonding strength between clamping block 13 and lock body 11, to overcome the rotary inertia for starting moment hole saw 2 and clamping block 13；Separately
Interim card when on the one hand entering the second locating slot 45 by the second positioning ball 41 can play prompt clamping block 13 on lock body 11
Initial makeup location effect.When first preliminary latch means 4 are in the lock state, pin rod 14 is in the first pin 52 of compressing
First position, locking device are in the lock state, in this way, the first preliminary latch means 4 have actually prompted the locking of locking device
Position.
First preliminary latch means 4 unlock operation principle be：With reference to Fig. 7, Fig. 8, Figure 14-Figure 21, centre drill 3 is being processed
After piercing certain depth on material, hole saw 2 touches machined material and starts to cut, and machined material is cut in hole saw 2
Moment, hole saw 2 under the promotion for the moment of reaction that machined material applies, drive pin rod 14 and clamping block 13 along with cutting
Side rotates in the opposite direction so that the second positioning ball 41 on clamping block 13 is staggered with the second locating slot 45, the second positioning
Steel ball 41 exits the second locating slot 45, and circumferential position of the clamping block 13 on lock body 11 is unlocked.
After the unlock of first preliminary latch means 4, clamping block 13 can circumferentially rotate on lock body 11, because of pin rod 14 and clamping block 13
Affixed, after the unlock of the first preliminary latch means 4, pin rod 14 can the free movement in circumferentially arcuate slot 123.
Second preliminary latch means 6 include the centrally disposed third positioning ball 61 and centre drill 3 bored between 3 and lock body 11
Third locating slot on shank, as shown in Fig. 7-Figure 11, the 4th radial hole 64 on lock body 11 is arranged in third positioning ball 61
Interior, the 4th radial hole 64 can extend on fixed block 12 from lock body 11, be additionally provided in the 4th radial hole 64 third positioning steel
A part for pearl 61 is pressed on the 4th spring 62 and third holding screw 63 in third locating slot.
Second preliminary latch means 6 locking operation principle be：With reference to Fig. 9-Figure 11, third positioning ball 61 is in the 4th spring
62 and third holding screw 63 compressing under, the third locating slot being partially submerged on centre drill 3, by third positioning ball 61 into
Interim card when entering third locating slot can play the role of prompting the installation site of locking device.
Second preliminary latch means 6 unlock operation principle be：Because the third positioning ball 61 of the second preliminary latch means 6 is the
Adhesive force in three locating slots is smaller, and after locking device unlock, centre drill 3 is easy under the thrusting action of machined material
The resistance for overcoming third positioning ball 61 makes the second preliminary latch means 6 unlock, as shown in Figure 17, Figure 20, Figure 21.
For the ease of manufacture and structure arrangement, the first locating slot 53 can be made to the circumferentially disposed ring along centre drill 3
Slot, and the third locating slot of the second preliminary latch means 6 coincides with the first locating slot 53.
Second locating slot 45 is circular hole, and hole internal diameter is slightly less than the diameter of the second positioning ball 41 so that in lock-out state
Under, the second positioning ball 41 is that part enters in the second locating slot 45, while it is fixed from second to also allow for the second positioning ball 41
It is exited in the slot 45 of position.
The other embodiment of the present embodiment is same as Example 2.
Embodiment 4
The present embodiment is with reference to Fig. 3-Figure 21.
The present embodiment and embodiment 3 difference lies in：The 5th spring 72 is installed between pin rod 14 and fixed block 12 additional.
With reference to 7 and Fig. 8, pin rod 14 is connected with the 5th spring 72 of resetting apparatus 7, and fixed block 12 includes being set in lock body 11
On inner ring 121 and the outer ring 122 that is set on inner ring 121, outer ring 122 play sealing, the periphery of inner ring 121 is provided with circumferential direction
Mounting groove 1211, circumferential mounting groove 1211 connect with circumferentially arcuate slot 123；
Resetting apparatus 7 includes the distribution 71 that is arranged in circumferential mounting groove 1211, and 71 will be promoted and press to by promoting 71 and being equipped with
The 5th spring 72 and fixed pin 73 of pin rod 14, the 5th spring 72 and fixed pin 73 are arranged in circumferential mounting groove 1211, and
Fixed pin 73 is radially fixed in circumferential mounting groove 1211, and one end of the 5th spring 72 is contradicted with promoting 71, the other end and fixation
Pin 73 contradicts.
1 and Figure 12 referring to Fig.1, the 5th spring 72 oppress pin rods 14 by promoting 71, pin rod 14 are made to be located at first position,
First positioning ball, 51 part is pressed into the first locating slot 53 by pin rod 14 by the first pin 52, locking device locking.
With reference to 17 and Figure 18, after hole saw 2 touches machined material and starts cutting, hole saw 2 applies in machined material
The moment of reaction push under, drive pin rod 14 to be rotated along the direction opposite with cutting direction, pin rod 14 is rotated by first position
To the second position, pin rod 14 is by promoting 71 the 5th springs 72 of compressing, locking device unlock.
The present invention can rotate clamping block 13 with negative direction, pin rod 14 is made to reset after use.5th spring 72 for
The reset of pin rod 14 has booster action.In some cases, the 5th spring 72 itself is just enough that pin rod 14 is individually pushed to reset.
Resetting apparatus 7 to pin rod 14 in addition to playing reset response, moreover it is possible to play the role of overcoming the rotary inertia of hole saw 2；
After power plant starts, hole saw lock 1 rotates therewith, and hole saw lock 1 drives hole saw 2 to rotate, and needs to overcome turning for hole saw 2
Dynamic inertia, the rotary inertia of hole saw 2 promote hole saw 2 to drive pin rod 14 in circumferentially arcuate slot 123 from first position to second
Movement is set, resetting apparatus 7 can prevent the movement of pin rod 14, and pin rod 14 is made to be maintained at first position.
The other embodiment of the present embodiment is same as Example 3.
Embodiment 5
The present embodiment is with reference to Fig. 3, Fig. 7, Fig. 8 and Figure 22-Figure 39.
The present embodiment and embodiment 4 difference lies in：The toggle mechanism used is different.
The toggle mechanism of the present embodiment is locked out the inner wall of block 13 and the second radial hole 55 being opened on 13 inner wall of clamping block,
And first the diameter of positioning ball 51 be more than the depth of the first radial hole 54, the internal diameter of the second radial hole 55 is less than the first positioning steel
When the diameter of pearl 51, pin rod 14 and clamping block 13 are located at the second position, the second radial hole 55 is directed at the first radial hole 54.
When pin rod 14 and clamping block 13 are located at first position, the first radial hole 54 and the second radial hole 55 are staggered, and first is fixed
The diameter of position steel ball 51 is more than the depth of the first radial hole 54, and the inner wall of clamping block 13 is oppressed 51 part of the first positioning ball and is caught in
In the first locating slot 53 on centre drill 3,3 axial position in sliding slot 111 is bored with locked-center；Pin rod 14 and clamping block 13
When positioned at the second position, the second radial hole 55 and the perforation of the first radial hole 51, the first positioning ball 51 are moved to the second radial hole 55
Dynamic, the first positioning ball 51 exits the first locating slot 53, eliminates the compressing to centre drill 3, releases centre drill 3 in sliding slot 111
Axial lock position.
Locking device locking operation principle be：As shown in Figure 28-Figure 30, the first radial hole 54 and the second radial hole 55 are wrong
It opens, the inner wall of clamping block 13 is oppressed 51 part of the first positioning ball and is caught in the first locating slot 53 on centre drill 3, locked-center
Bore 3 axial position in sliding slot 111.
Locking device unlock operation principle be：After centre drill 3 pierces certain depth on machined material, hole saw 2 connects
It contacts machined material and starts to cut, the powerful moment of reaction that hole saw 2 is generated by moment, hole saw 2 drives clamping block 13
It is rotated along the direction opposite with cutting direction so that the second radial hole 55 and the first radial hole 51 are aligned and penetrate through, the first positioning
Steel ball 51 obtains mobile space, and the first positioning ball 51 is moved to the second radial hole 55, and the first positioning ball 51 is moved
Space exit the first locating slot 53, axial lock position of the centre drill 3 in sliding slot 111 is relieved, with reference to Figure 36-Figure 40.
The internal diameter of second radial hole 55 is less than the diameter of the first positioning ball 51, and the first positioning ball 51 can be shifted to partly
In second radial hole 55, without entirely falling in the second radial hole 55, it is conducive to the first positioning ball 51 so smoothly from second
It is exited in radial hole 55.
Since locking device can lock or unlock axial position of the centre drill 3 in sliding slot 111, in controlling
The heart bores 3 and pierces depth on machined material, is rapidly separated hole saw 2 conducive to waste material, principle is the same as described in embodiment 1.
Particularly, can be flat by two side millings of centre drill 3 when the cross section of 3 shank of centre drill is round or hexagon,
And stay segment flat without milling in shank, to form boss 33, accordingly, hole saw lock 1 sliding slot 111 be stepped hole, pass through by
The shoulder of boss 33 is resisted against on the step surface of stepped hole, is realized axially position of the centre drill 3 in lock body 11, is prevented centre drill
It slides, as shown in Figure 24, Figure 25, Figure 30, Figure 31, Figure 37.
In the present embodiment, locking device is arranged on clamping block 13, and the first preliminary latch means 4 can play prompt locking device
Initial makeup location effect, be not required to installation the second preliminary latch means 6.
The other embodiment of the present embodiment is same as Example 4.
Embodiment 6
The present embodiment is with reference to Fig. 3 and Figure 22-Figure 39.
The present embodiment and embodiment 5 difference lies in：The end face of 3 shank of centre drill is used as the first locating slot 53, makes the
One positioning ball 51 is directly matched with the end face of 3 shank of centre drill.
Locking device locking operation principle be：As shown in Figure 28-Figure 30, the first radial hole 54 and the second radial hole 55 are wrong
It opens, the inner wall of clamping block 13 oppresses the end face that the first positioning ball 51 pushes against 3 shank of centre drill, and locked-center bores 3 in sliding slot 111
Interior axial position.
Locking device unlock operation principle be：Hole saw 2 starts the moment of cutting, in the reaction that machined material applies
Under torque, hole saw 2 drives clamping block 13 to be rotated along the direction opposite with cutting direction, when the second radial hole 55 and the first radial hole
51 are aligned and when penetrating through, the first positioning ball 51 move to the second radial hole 55,51 off center of the first positioning ball, 3 shanks of brill
End face, eliminate blocking to centre drill 3, axial lock position of the centre drill 3 in sliding slot 111 relieved, such as Figure 36-Figure 40
It is shown.
The other embodiment of the present embodiment is same as Example 5.
Embodiment 7
In addition to the attached drawing with reference to embodiment 2, the present embodiment is also needed with reference to Figure 40-Figure 62：
The present embodiment the difference from example 2 is that：The locking device of use and trigger device difference.
In the present embodiment, locking device includes centrally disposed the second pin 56 and centre drill 3 bored between 3 and lock body 11
The first locating slot 53 on shank, in the first radial hole 54 that the second pin 56 is arranged on lock body 11, the connection of the second pin 56
Second spring 57；The head of second pin 56 is inserted into the first locating slot 53, so that locked-center bores 3 axis in sliding slot 111
To position, the first locating slot 53 can be circular hole.
In the present embodiment, trigger device includes the casing 32 for being slideably sleeved on 3 outside of centre drill, the lower end of casing 32
It is flushed with the sawtooth of hole saw 2, the upper end of casing 32 is equipped with the inclined-plane 323 coordinated with the second pin 56；When hole saw 2 and it is processed
When material, casing 32 drives the second pin 56 to be detached from the first locating slot 53 relative to 3 upward sliding of centre drill, inclined-plane 323,
Complete the unlocking motion of locking device.
With reference to Figure 57-Figure 60, the inclined-plane 323 of casing 32 includes the first inclined-plane 3231 and the second inclined-plane 3232, casing 32
Side wall at nozzle is provided with the first notch, which forms the first guide groove 321, the notch alignment of the first guide groove 321
The diameter of second pin 56, the groove width of the first guide groove 321 and the second pin 56 is adapted so that the second pin 56 can penetrate the
One guide groove 321；The upper end of first guide groove 321 is formed slopely the first inclined-plane 3231 to pipe shaft direction, the lower end of the first guide groove 321 to
Pipe shaft direction is formed slopely the second inclined-plane 3232, and the second inclined-plane 3232 is less than the first inclined-plane 3231.
The shank of centre drill 3 is radially equipped with latch 31, and the side wall of casing 32 being located at nozzle is provided with the second notch,
Second notch forms the second guide groove 322, and the notch of the second guide groove 322 is directed at latch 31, the groove width of the second guide groove 322 with only
The diameter of dynamic pin 31 is adapted so that latch 31 can penetrate the second guide groove 322.
Locking device locking operation principle be：With reference to Figure 43 and Figure 46, Figure 47, Figure 48, cutting the starting stage, second
Pin 56 be inserted under the compressing of second spring 57 and the first holding screw 58 in the first locating slot 53 on 3 shank of centre drill with
Locked-center bores 3 axial position in sliding slot 111；At this point, the second pin 56 is except the first guide groove 321, latch 31 exists
Except second guide groove 322.
Locking device unlock operation principle be：After centre drill 3 pierces certain depth on machined material, hole saw 2 connects
It contacts machined material and starts to cut, because the lower end of casing 32 is flushed with the sawtooth flank of tooth of hole saw 2, casing 32 is being processed
Close to the second pin 56 under the thrusting action of material, then, the first inclined-plane 3231 is bonded with the inclined-plane of 56 bottom of the second pin,
As shown in figure 58, and under the promotion of drill thrust the second pin 56 is jacked up out of first locating slot 53, as shown in Figure 52 and Figure 53；
Casing 32 continues to move to, and the second pin 56 enters in the first guide groove 321, and the bottom surface of the second pin 56 falls into the second inclined-plane 3232
On, as shown in figure 59, the second inclined-plane 3232 takes over the first inclined-plane 3231 and all pushes up the second pin 56 out of first locating slot 53
Go out, with reference to Figure 54-Figure 56 and Figure 60, axial position of the centre drill 3 in sliding slot 111 is unlocked.
Meanwhile constantly moving up with casing 32, latch 31 enters in the second guide groove 322, as shown in Figure 61；When second
When the slot bottom 3221 of sliding slot 322 is contradicted to latch 31, casing 32 stops movement, as shown in Figure 62.
Since locking device can lock or unlock axial position of the centre drill 3 in sliding slot 111, to control centre
Brill 3 pierces depth, is rapidly separated hole saw 2 conducive to waste material, principle is the same as described in embodiment 1.
It is casing 32 by trigger device in this present embodiment, so being sold on fixed block 12 it is not necessary that circumferentially arcuate slot 123 is arranged
Bar 14 is fixedly connected with fixed block 12.
In the present embodiment, casing 32 is cased with outside centre drill 3, during the internal diameter of sliding slot 111 must sufficiently large could accommodate time
The heart bores 3 and casing 32, therefore 111 internal diameter of sliding slot is bigger, and the lock body holding screw 113 used in embodiment 2 is to lock body 11
Intensity requirement it is relatively high, be suitable for the smaller lock body 11 of internal diameter, so being limited using position-limitting pin 115 in the present embodiment
Position.
The other embodiment of the present embodiment is same as Example 2.
This specification embodiment content is only enumerating to the way of realization of inventive concept, and protection scope of the present invention is not
It should be seen as limited by the concrete form that embodiment is stated, protection scope of the present invention is also and in those skilled in the art's root
According to present inventive concept it is conceivable that equivalent technologies mean.
Claims (10)
1. trepanning device assembly, including the hole saw of cylindrical shape, hole saw lock and centre drill, hole saw are fastened on hole saw and lock, hole saw
Power plant of the lock connection for output torque；Rodlike centre drill passes through the center of hole saw and is connected to hole saw and locks, so as to
Obtain the torque that hole saw lock transmits；The centre drill, hole saw, hole saw lock coaxial arrangement；Hole saw lock includes substantially cylindrical
Lock body, fixed block and clamping block, the fixed block and clamping block be respectively sleeved on the lock body, and fixed block is solid with lock body
It connects, it is characterised in that：
The axial line of the lock body is equipped with sliding slot, and the centre drill is slidably disposed in the sliding slot, in institute
There is key connection between the centre drill and lock body on the direction of rotation for the torque stated；It is equipped between the centre drill and lock body
First spring；
Equipped with for locking or unlocking the centre drill in the sliding slot between the centre drill and hole saw lock
The locking device of axial position, locking device connect one and generate the triggering for reacting action when hole saw is contacted with machined material
Device；
The locking device unlocks axial position of the centre drill in the sliding slot under the promotion of trigger device
It sets；
The hole saw is affixed with clamping block by pin rod, and pin rod passes through the fixed block；The clamping block rotationally covers
It is located on the lock body；
The trigger device is made of the hole saw and pin rod, and the pin rod is threaded through the circumferential arc on fixed block
In shape slot；When hole saw and machined material contact, the moment of reaction that machined material is applied to hole saw pushes pin rod and lock
Determine block and turn to the second position from first position, completes the unlocking motion of locking device.
2. trepanning device assembly according to claim 1, it is characterised in that：
The locking device includes the first positioning ball being arranged between the centre drill and the lock body and the centre drill
The first locating slot on shank, first positioning ball are arranged in the first radial hole on the lock body；Described first
Positioning ball connects a toggle mechanism, the toggle mechanism connection trigger device；
Pin rod and clamping block oppress toggle mechanism when being located at first position, toggle mechanism oppresses the first positioning ball, the first positioning
A part for steel ball enters in the first locating slot, the axial position being drilled in so as to locked-center in the sliding slot；Pin rod and lock
When determining block and being located at the second position, the compressing to toggle mechanism is released, the first positioning ball exits the first locating slot, to unlock
Axial position of the centre drill stated in the sliding slot.
3. trepanning device assembly according to claim 2, it is characterised in that：The toggle mechanism is the first pin, first
Pin is arranged in the first radial hole, and the end of the first pin is located on the movement locus of the pin rod.
4. trepanning device assembly according to claim 2, it is characterised in that：The toggle mechanism is the interior of the clamping block
Wall and the second radial hole being opened on clamping block inner wall, and the diameter of the first positioning ball is more than the depth of the first radial hole, the
The internal diameter of two radial holes is less than the diameter of the first positioning ball；When pin rod and clamping block are located at the second position, the second radial hole pair
Accurate first radial hole.
5. trepanning device assembly according to claim 3 or 4, it is characterised in that：It is set between the clamping block and the lock body
There are the first preliminary latch means；
First preliminary latch means include the second positioning ball being arranged between the clamping block and the lock body and described
The second locating slot on lock body, second positioning ball are arranged in the third radial hole on the clamping block, the third
Be additionally provided with a third spring part for second positioning ball being pressed in second locating slot in radial hole.
6. trepanning device assembly according to claim 5, it is characterised in that：The is equipped between the lock body and the centre drill
Two preliminary latch means；
Second preliminary latch means include the third positioning ball being arranged between the centre drill and the lock body and described
Third locating slot on the drill shank of center, in the 4th radial hole that the third positioning ball is arranged on lock body, the described 4th
Be additionally provided with a 4th spring part for the third positioning ball being pressed in the third locating slot in radial hole.
7. trepanning device assembly according to claim 6, it is characterised in that：First locating slot is along the centre drill
Circumferentially disposed annular groove, and the 4th locating slot of second preliminary latch means coincides with first locating slot.
8. trepanning device assembly according to claim 7, it is characterised in that：The pin rod is connected with the 5th spring.
9. trepanning device assembly according to claim 1, it is characterised in that：The locking device includes centrally disposed brill
The first locating slot on the second pin and the center drill shank between lock body, second pin are arranged on lock body
In first radial hole, the first pin connects second spring；The first locating slot is inserted into so that locked-center is bored in the head of second pin
Axial position in the sliding slot；
The trigger device includes the casing being slideably sleeved on outside centre drill, the lower end of described sleeve pipe and the saw of hole saw
Tooth flushes, and the upper end of described sleeve pipe is equipped with the inclined-plane with second bayonet fittings；
When hole saw and machined material contact, casing drives the positioning relative to centre drill upward sliding, the inclined-plane
Pin is detached from first locating slot, completes the unlocking motion of locking device.
10. according to the trepanning device assembly described in one of claim 3,4 or 9, it is characterised in that：It is fixed on the top surface of the hole saw
There are gasket, the hole saw to be connected with the clamping block by the gasket.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510494246.3A CN106424857B (en) | 2015-08-12 | 2015-08-12 | Trepanning device assembly |
| PCT/CN2016/079986 WO2017024814A1 (en) | 2015-08-12 | 2016-04-22 | Hole-opening assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510494246.3A CN106424857B (en) | 2015-08-12 | 2015-08-12 | Trepanning device assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106424857A CN106424857A (en) | 2017-02-22 |
| CN106424857B true CN106424857B (en) | 2018-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510494246.3A Active CN106424857B (en) | 2015-08-12 | 2015-08-12 | Trepanning device assembly |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106424857B (en) |
| WO (1) | WO2017024814A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9839966B2 (en) * | 2015-03-27 | 2017-12-12 | Maclo Products, Inc. | Quick-release arbor for hole saw |
| CN109176910B (en) * | 2018-08-23 | 2020-06-19 | 董恬纲 | Water drill punching positioner |
| CN109396602B (en) * | 2018-12-14 | 2024-07-23 | 厦门大学嘉庚学院 | Simple rotary circular tube saddle opening cutting machine and working method thereof |
| CN113464572B (en) * | 2021-06-29 | 2022-06-24 | 人本股份有限公司 | Quick-connect platen bearing arrangement |
| CN114776233B (en) * | 2022-05-13 | 2023-10-03 | 中国矿业大学 | Drill rod device for impact-resistant drilling robot and application method of drill rod device |
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| US5062748A (en) * | 1991-04-15 | 1991-11-05 | Odsk Company, Limited | Shank structure for annular hole cutter |
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| JPS57201114A (en) * | 1981-05-29 | 1982-12-09 | Oomi Kogyo Kk | Boring cutter |
| JP3662974B2 (en) * | 1995-06-12 | 2005-06-22 | ユニカ株式会社 | Core drill |
| AU2014246680A1 (en) * | 2006-11-28 | 2014-11-06 | Kym John Keightley | A hole saw assembly including drive shafts supported by a rotatable annulus |
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| US5062748A (en) * | 1991-04-15 | 1991-11-05 | Odsk Company, Limited | Shank structure for annular hole cutter |
| CN1100984A (en) * | 1993-06-30 | 1995-04-05 | 日东工器株式会社 | Unit for assembling ring shaped cutting tool and ring shaped cutting tool |
| CN101578165A (en) * | 2006-11-28 | 2009-11-11 | 许姆·约翰·凯特利 | A hole saw assembly including drive shafts supported by a rotatable annulus |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106424857A (en) | 2017-02-22 |
| WO2017024814A1 (en) | 2017-02-16 |
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