CN109623422A - A kind of broaching tool knife handle component - Google Patents
A kind of broaching tool knife handle component Download PDFInfo
- Publication number
- CN109623422A CN109623422A CN201910044910.2A CN201910044910A CN109623422A CN 109623422 A CN109623422 A CN 109623422A CN 201910044910 A CN201910044910 A CN 201910044910A CN 109623422 A CN109623422 A CN 109623422A
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- China
- Prior art keywords
- broaching tool
- knife handle
- flange
- axis
- handle
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- 239000000446 fuel Substances 0.000 claims description 11
- 238000012423 maintenance Methods 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000004891 communication Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 10
- 238000009434 installation Methods 0.000 description 6
- 230000011218 segmentation Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
- B23B31/20—Longitudinally-split sleeves, e.g. collet chucks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D43/00—Broaching tools
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling, Broaching, Filing, Reaming, And Others (AREA)
Abstract
The invention discloses a kind of broaching tool knife handle components, including broaching tool and knife handle clamping device;The broaching tool includes broaching tool knife handle, and the broaching tool knife handle is with one with tapered strip broaching tool handle;The knife handle clamping device bears broaching cutting force for clamping strip broaching tool handle to realize that the clamping to broaching tool is fixed.The design does not need to slot for the broaching tool of small diameter on broaching tool knife handle, improves knife handle intensity, and precision stability is good, and knife handle is not allowed easily broken.
Description
Technical field
The present invention relates to broaching machine field of components, more particularly to a kind of broaching tool knife handle component.
Background technique
For broaching machine, annular groove knife handle has been put into national standard, is highly developed technology, still, with automation
The broaching of the development of technology, small-bore is more and more, since annular groove knife handle is felt relieved by slot conical surface stress at work, cone
The too small stress in face is poor, and precision stability is poor, and the conical surface increases, and knife handle recess diameter reduces, and intensity also reduces, and knife handle is easy disconnected.
Summary of the invention
The present invention is directed to solve above-mentioned technical problem at least to a certain extent.For this purpose, the present invention proposes a kind of dismantle more
Change simple broaching tool knife handle component.
The technical solution adopted by the present invention to solve the technical problems is: a kind of broaching tool knife handle component, including broaching tool and knife
Handle clamping device;The broaching tool includes broaching tool knife handle, and the broaching tool knife handle is with one with tapered strip broaching tool handle;The knife
Handle clamping device bears broaching cutting force for clamping strip broaching tool handle to realize that the clamping to broaching tool is fixed.
Further, the conical surface oblique angle of the strip broaching tool handle is β, and β value range is [- 5 °, 15 °];The strip broaching tool
When handle extends to end and radius becomes larger, β is positive value.
Further, β value range is [0,1 °].
Further, the strip broaching tool handle outer end is provided with the axis that the diameter of axle is greater than strip broaching tool handle, the axis and institute
The diameter of axle difference for stating strip broaching tool handle is no more than 1.6mm.
Further, the knife handle clamping device includes clamp system and spring ringfeder 3;It is equipped in the middle part of the spring ringfeder 3
Second cavity is equipped with the clamping section for holding strip broaching tool handle 93 tightly for being inserted into broaching tool knife handle 91,3 upper end of spring ringfeder
31;The clamp system is used to exert a force to clamping section 31 to hold fixed strip broaching tool handle 93 tightly.
Further, the knife handle clamping device further includes swaging clamp body 1;The first cavity and sky are equipped in the middle part of the swaging clamp body 1
Cavity wall is provided with the first flange 16, and the gap between first flange 16 forms first axis slot 18;The spring ringfeder 3
Lower end is equipped with fixture block 32, and the gap between the fixture block 32 forms the second axial groove 37 passed through for the first flange 16, described
Fixture block 32, which projects radially outward, to be formed and forms one and the matched ring cutting slot 33 of the first flange 16 above it;32 edge of fixture block
First axis slot 18 is inserted into the first cavity, and rotation spring ringfeder 3 makes the first flange 16 be caught in ring after crossing the first flange 16
In grooving 33, to realize the axial restraint of spring ringfeder 3.
Further, the clamp system includes sliding sleeve;The sliding sleeve is coaxially set in swaging clamp in vitro and can be along swaging clamp body axis
To movement, the clamping section protrudes swaging clamp body upper end and outer wall is tapered, and the sliding sleeve upper end is provided with and clamping section outer wall pair
The bellmouth answered and be close to it.
Further, there is a plunger shaft inside the sliding sleeve, the swaging clamp body includes and matched second axis of plunger shaft, institute
It states the second axis and plunger shaft is divided into two chambers up and down, the plunger shaft upper and lower ends, which are respectively arranged with, to be extended outwardly and connect with the external world
Logical the first fuel feed hole and the second fuel feed hole;Described slide over is provided with the first chamber between bellmouth and plunger shaft, the swaging clamp
Body further includes first axle and third axis, and the plunger shaft lower end is opening and opening is equipped with an end cap, the first axle, the
Two axis and third axis are set gradually from top to bottom, and the first axle is matched with the first chamber for being sealed to plunger shaft upper end,
The end cap matches with third axis and is sleeved on the sealing realized on third axis to plunger shaft lower end.
It further, further include catch means, the catch means are used for the bullet being caught in the first flange under ring cutting channel-shaped state
Spring ringfeder it is circumferentially fixed.
Further, the catch means include snap ring and maintenance inserted block, the swaging clamp body cavity inner wall be provided with it is multiple
Multiple second flanges and multiple third flanges that first flange is axially aligned, between second flange and between third flange
Be respectively formed third axial groove and the 4th axial groove, second flange and third flange be in below the first flange and successively between
Every setting, the snap ring be circumferentially provided with can across the 4th axial groove and rotate be caught in the second flange and third flange between
The latch of gap, the maintenance inserted block can be inserted in the second axial groove by third axial groove and the 4th axial groove to spring ringfeder
It realizes circumferentially positioned.
Further, the catch means include lock-bit screw, and the spring ringfeder is provided in lock-bit screw end
The limiting slot of lower movement, the lock-bit screw are mounted on sliding sleeve and are caught in limiting slot.
The beneficial effects of the present invention are:
1, it for the broaching tool of small diameter, does not need to slot on broaching tool knife handle, improves knife handle intensity, precision stability
Well, knife handle is not allowed easily broken;
2, it after first equal fixture blocks cross the first flange in spring ringfeder insertion swaging clamp body, then rotates, so that the first flange is caught in
Ring cutting slot in, realize the fixed installation of spring ringfeder, when dismounting, also only need torsional spring ringfeder, dismantle installation side
Just, it does not need to dismantle entire broaching tool knife-clamping device, reduces the labor intensity of replacement broaching tool, reduction, which is changed, produces the time, improves auxiliary
The safety of chuck replacing;
3, spring ringfeder has enough gaps, broaching tool when conveniently broaching every time between knife handle and spring ringfeder hole after unclamping
It extracts and is inserted into.This gap completely eliminates after spring ringfeder clamps broaching tool knife handle, reduces by broaching workpiece outer diameter to drawing
The circular runout value for cutting hole, improves the precision of product to be processed.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is using state structure diagram of the present invention;
Fig. 2 is mounting structure schematic diagram of the invention;
Fig. 3 is decomposing state cross-sectional view of the invention;
Fig. 4 is installation condition internal view of the invention;
Fig. 5 is the structural schematic diagram of spring ringfeder;
Fig. 6 is a kind of cross-sectional view of swaging clamp body;
Fig. 7 is a kind of structural schematic diagram of broaching tool;
Fig. 8 is the attachment structure schematic diagram of a kind of broaching tool and spring ringfeder;
Fig. 9 is the structural schematic diagram of another broaching tool;
Figure 10 is the attachment structure schematic diagram of another broaching tool Yu spring ringfeder;
Figure 11 is the decomposition state schematic diagram of a kind of catch means and spring ringfeder;
Figure 12 is a kind of attachment structure schematic diagram of catch means;
Figure 13 is a kind of cross-sectional view of catch means;
Figure 14 is a kind of catch means another kind attachment structure schematic diagram.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawings and examples.
Referring to figs. 1 to Figure 14, a kind of broaching tool knife handle component of the invention, including broaching tool 9 and knife handle clamping device;The drawing
Knife 9 includes broaching tool knife handle 91, and the broaching tool knife handle 91 has one with tapered strip broaching tool handle 93, and strip broaching tool handle 93 is vertical
Axial cross section is circle, oval or polygon, this embodiment are preferably circular section;The knife handle clamping device is for clamping strip drawing
Knife handle 93 fixes the clamping of broaching tool 9 with realizing.Specifically, conical surface oblique angle (bus and the center line of the strip broaching tool handle 93
Angle) it is β, β value range is [- 5 °, 15 °];When the strip broaching tool handle 93 extends to end and radius becomes larger, β is positive value,
It is illustrated in figure 9 positive angle, end extends from inside to outside and the taper that becomes larger of diameter is positive, on the contrary then be negative.When β is negative value, such as β
When being -2 °, the frictional force that strip broaching tool handle 93 fully relies on knife handle clamping device at this time is clamped fixation.But the negative value of β
Do not take excessive, if excessive, frictional force may be not enough to provide the pulling force of broaching tool, and when such as β being -5 °, knife handle clamping device is to item
Shape broaching tool handle 93, which is also able to achieve, to be fixedly clamped and is processed.When β is 0, strip broaching tool handle is in straight circular cylinder type and complete at this time
Pulling force is provided by frictional force entirely, certainly as β is on the occasion of increasing, is fixedly clamped more secured, such as when β is 5 °, clamping force
Spend the operation that enough broaching tools 9 complete big pulling force.
93 outer end of strip broaching tool handle is provided with the axis 92 that the diameter of axle is greater than strip broaching tool handle 93, the axis 92 and institute
The diameter of axle difference for stating strip broaching tool handle 93 is no more than 1.6mm, and in fact as shown in fig. 7, the shape is similar with the knife handle of national standard, strip is drawn
Knife handle 93 is exactly the slot bottom shaft portion of ring cutting slot, the shaft part that both ends have diameter to be greater than strip broaching tool handle 93, wherein one section in fact
Groove depth for axis 92, ring cutting slot is preferred are as follows: groove depth is shallowly arrived close to 0, and certainly, minimum-depth can also be pressed from both sides in 0~0.8mm
Tightly processed.It is exactly that strip broaching tool handle 93 can have certain taper there are also the difference with national standard, not by national standard groove depth
Limitation, the main approach for providing pulling force are frictional force or/and the clamping force that taper provides.
Lower mask body introduces the preferred embodiment of knife handle clamping device.
The knife handle clamping device includes swaging clamp body 1, clamp system and spring ringfeder 3.The is equipped in the middle part of the swaging clamp body 1
One cavity and cavity inner wall are provided with the first flange 16, and the gap between first flange 16 forms first axis slot 18, the
One cavity and swaging clamp body 1 are coaxially disposed.The second cavity is equipped in the middle part of the spring ringfeder 3 to be used to be inserted into broaching tool knife handle 91, it is described
3 upper end of spring ringfeder is equipped with the clamping section 31 for holding strip broaching tool handle 93 tightly.Spring ringfeder 3 is due to strip broaching tool in order to prevent
The taper of handle 93 is excessive, causes flexible deformation too big and damages, β value range is preferably [0,1 °], for example, in an embodiment
In, β is 0.5 °, and the deflection of spring ringfeder 3 is moderate, it will not cause to damage since deflection is excessive, in another embodiment,
β is 1 °, and near limit is clamped great efforts by the deflection of spring ringfeder 3 at this time at this time, and the deflection of spring ringfeder 3 is also not enough to
Cause the too fast damage of spring ringfeder 3.3 lower end of spring ringfeder is equipped with fixture block 32, and the gap between the fixture block 32 is formed can
For the second axial groove 37 that the first flange 16 passes through, likewise, first axis slot 18 passes through for fixture block 32,32 diameter of fixture block
To outwardly protrude into and formation one and the matched ring cutting slot 33 of the first flange 16 above it;The fixture block 32 is along first axis
Slot 18 is inserted into the first cavity, and rotation spring ringfeder 3 is caught in the first flange 16 in ring cutting slot 33 after crossing the first flange 16,
To realize that the axial restraint of spring ringfeder 3, fixture block 32 are axially aligned with the first flange 16 at this time;Specifically, the fixture block 32 around
Axis be equipped at intervals with it is multiple, first flange 16 around axis interval be arranged it is multiple, have between multiple first flanges 16
The first axis slot 18 of multiple corresponding fixture blocks 32, the fixture block 32 can cross the first flange by the gap of first axis slot 18
16.Preferably, first axis slot 18 is matched with fixture block 32, the first flange 16 and the matching of the second axial groove 37, i.e., multiple fixture blocks 32
It is mutually chimeric with the section of multiple first flanges 16, a complete circle can be combined into.In the present embodiment, as shown in figure 5, the card
Block 32 is equipped at intervals with two around axis, and corresponding, first flange 16 is arranged at intervals with two, two described first around axis
Have between flange 16 there are two the first axis slot 18 of corresponding fixture block 32, first axis slot 18 passes through for fixture block 32.In addition ring
Grooving 33 is matched with the first flange 16 to be referred to, the thickness of the first flange 16 and the thickness matching of ring cutting slot 33, further first is convex
The internal diameter of edge 16 is also matched with 33 slot bottom cylindrical surface diameter of ring cutting slot, realizes that positioning axially and radially is stuck.Certainly at other
In embodiment, swaging clamp body 1 can be even omitted or substituted, such as shown in 1, and when the design uses, spring ringfeder 3 can be straight
It connects and is mounted in cutter holder base 8, can carry out being detachably connected fixed or directly welding and be ok, being detachably connected can there are many kinds of sides
Formula, such as one section of thread spindle can be set in 3 bottom of spring ringfeder, nut is installed by cutter holder base 8 using multi-diameter shaft and thread spindle
It is fixedly clamped to realize the fixation of spring ringfeder 3.
3 preferred structure of spring ringfeder is that the spring ringfeder 3 includes sleeve 35,35 upper end of sleeve and clamping section 31
Connection, 35 lower end of sleeve are axially outwardly extended the end axis 36 for having diameter to be less than sleeve 35, and the setting of fixture block 32 exists
It holds on axis 36, the ring cutting slot 33 is formed between fixture block 32 and sleeve 35, i.e., ring cutting slot 33 is by fixture block 32 and sleeve 35 and end
Caused by 35 diameter difference of axis 36 and sleeve.Multiple stress holes 351,31 periphery of clamping section are provided on 35 outer wall of sleeve
Multiple slot segmentations 311 are provided with, the slot segmentation 311 is connected to stress hole 351, and slot segmentation 311 and stress hole 351 form one
The open slot of opening upwards, clamping section 31 are divided into multiple clamping jaws 312 by multiple open slots, and clamping jaw 312 is around into intermediate shape
At an annular opening for being put into broaching tool, by applying centripetal force to clamping jaw 312, clamping jaw is made to clamp strip broaching tool handle 93.Institute
Clamp system is stated i.e. for holding fixed broaching tool tightly to the force of clamping section 31.
The preferred structure of lower clamp system is detailed below, the clamp system includes sliding sleeve 2;The sliding sleeve 2 is coaxial
It being set in outside swaging clamp body 1 and can be moved axially along swaging clamp body 1, the clamping section 31 protrudes 1 upper end of swaging clamp body and outer wall is tapered,
2 upper end of sliding sleeve is provided with bellmouth 21 that is corresponding with 31 outer wall of clamping section and being close to it, in the present embodiment, bellmouth 21
It is the taper for upwardly extending diameter and becoming larger with 1 outer wall of swaging clamp body.When needing to clamp, it is only necessary to drive sliding sleeve 2 to move up,
It pushes bellmouth 21 to squeeze clamping section 31, makes each clamping jaw 312 of clamping section 31 to central reduction, clamp strip broaching tool handle 93.
When needing replacing the spring ringfeder 3 and broaching tool of other specifications, pushing sliding sleeve 2 to move down can unclamp to 3 He of spring ringfeder
Broaching tool is replaced.There are many kinds of the modes for pushing sliding sleeve 2, and sliding sleeve 2 can directly connect progress with telescopic cylinder or hydraulic cylinder
Telescopic slide, telescopic cylinder or hydraulic cylinder are fixed in cutter holder base 8 or broaching machine rack, and telescopic end is connect with sliding sleeve 2.The present embodiment
Using the structure of similar oil cylinder, sliding sleeve 2 is used as cylinder body, and swaging clamp body 1 is used as piston rod, and swaging clamp body 1 is fixed, 2 phase of sliding sleeve
Swaging clamp body 1 is moved up and down, specifically, having a plunger shaft 22 inside the sliding sleeve 2, the swaging clamp body 1 includes and plunger shaft
Plunger shaft 22 is divided to for upper and lower two chambers, 22 upper and lower ends of plunger shaft point by 22 matched second axis 12, second axis 12
It is not provided with the first fuel feed hole 221 and the second fuel feed hole 222 that extend outwardly and be in communication with the outside, upper and lower two chambers are respectively communicated with
There are the first fuel feed hole 221 and the second fuel feed hole 222.Further, the sealing structure of plunger shaft 22 is preferred, and the sliding sleeve 2 is being bored
The first chamber 23 is provided between shape hole 21 and plunger shaft 22, the center cavity of sliding sleeve 2 is i.e. by bellmouth 21, the first chamber 23 and plunger shaft
22 are sequentially coaxially connected to, and 23 diameter of the first chamber is less than plunger shaft 22.The swaging clamp body 1 further includes first axle 11 and third axis
13,22 lower end of plunger shaft is opening and opening is equipped with an end cap 4, the first axle 11, the second axis 12 and third axis
13 set gradually from top to bottom, and the first axle 11 is matched with the first chamber 23 for being sealed to 22 upper end of plunger shaft, described
End cap 4 matches with third axis 13 and is sleeved on the sealing realized on third axis 13 to 22 lower end of plunger shaft, the setting of 4 center of end cap
Have with the matched centre bore of third axis 13 to be sleeved on third axis 13.In order to seal, 23 inner wall of first axle 11 and the first chamber
Between, between end cap 4 and third axis 13, between 22 inner wall of the second axis 12 and plunger shaft be provided with sealing ring, as shown in fig. 6,
Mounting groove 121 is provided in the middle part of second axis 12 to install sealing ring.First fuel feed hole 221 and the second fuel feed hole 222 are respectively connected to liquid
Moving up and down for sliding sleeve 2 can be realized in pressure oil pump.In order to which the first fuel feed hole 221 and the connection structure of plunger shaft 22 are reasonable, piston
22 top inner wall of chamber is recessed upwards a reserved chamber 223, and reserved chamber 223 is connected to the first fuel feed hole 221.
It is not detached from swaging clamp body 1 because of rotation to allow spring ringfeder 3 to be packed into after swaging clamp body 1, for this purpose, the design further includes
Catch means, the catch means be used for the first flange 16 is caught under 33 state of ring cutting slot spring ringfeder 3 it is circumferentially fixed,
After first flange 16 is caught in ring cutting slot 33, catch means start to play a role, prevent spring ringfeder 3 is from rotatable around its axis,
Lock its rotation.
In the present embodiment, the catch means include lock-bit screw 5, and the spring ringfeder 3 is provided with for lock-bit screw 5
The limiting slot 34 that end moves up and down, the lock-bit screw 5 is mounted on sliding sleeve 2 and is caught in limiting slot 34, due to limiting slot
34 have the space moved up and down for 5 insertion end of lock-bit screw, so moving up and down for sliding sleeve 2 not will receive lock-bit screw 5
Interference, the only limited spring ringfeder 3 of lock-bit screw 5 is rotatable around its axis.
In other embodiments, catch means can also have other forms, such as such as Fig. 6, Figure 11, Figure 12, Figure 13 and figure
Shown in 14, the catch means include snap ring 101 and maintenance inserted block 104, and 1 cavity inner wall of swaging clamp body is provided with and multiple
Multiple second flanges 20 and multiple third flanges 17 that one flange 16 is axially aligned, it is preferred that the first flange 16 and the second flange
20 is identical with the section of third flange 17.The axial gap of first flange 16 and the second flange 20 can accommodate fixture block 32.
Third axial groove 201 and the 4th axial groove are respectively formed between second flange 20 and between third flange 17
171, second flange 20 and third flange 17 are in 16 lower section of the first flange and successively interval setting, the snap ring 101 weeks
To being provided with the latch that can be caught in gap the second flange 20 and third flange 17 across the 4th axial groove 171 and rotating
1011, being arranged at intervals with and the matched accommodating space 19 of latch 1011 between second flange 20 and third flange 17.It is described solid
Position inserted block 104 can be inserted real to spring ringfeder 3 in the second axial groove 37 by third axial groove 201 and the 4th axial groove 171
Existing circumferentially positioned, the gap of the second flange 20 and third flange 17 and 1011 thickness matching of latch are to realize its axially position.Tool
Body, maintenance inserted block 104 inserts fixed form, and there are many modes, preferably can be fixed with snap ring 101 by way of Figure 12, that is, block
A screw rod 102 is connected above ring 101, screw rod 102 installs snap ring 101 convenient for rotation, is cased with a position-limiting drum 105 on screw rod 102,
The outside level of the maintenance inserted block 104 is securing elongated to be provided with link block 1041, and link block 1041 is fixed on position-limiting drum 105 and card
It is between ring 101 and fixed by screw rod 102, the second axis is inserted it into order to realize to pre-tighten and push up maintenance inserted block 104 upwards
To slot 37, the first preloading spring 103 is provided between 1041 bottom of link block and snap ring 101, snap ring 101 corresponding first pre-tightens bullet
The accommodation groove 1012 for its installation is provided at spring 103,1041 bottom of link block is provided with corresponding slot, when needing to dismantle spring
When ringfeder 3, it is only necessary to will be pressed under position-limiting drum 105, maintenance inserted block 104 is detached from spring ringfeder 3.Certain maintenance inserted block 104
Fixed form can also be as shown in Figure 13 and Figure 14, link block 1041 and 101 bottom of snap ring are connected and fixed by bolt 106,
And the second preloading spring 107 is arranged on bolt 106, the second preloading spring 107 acted on the first preloading spring 103 it is identical,
Middle 102 center of screw rod is hollow and a unlock rod 108 is housed, and 108 bottom of unlock rod offsets with link block 1041, when needing to unlock
When spring ringfeder 3, it is only necessary to which spring ringfeder 3 can be detached from for maintenance inserted block 104 by turning down unlock rod 108, to spring ringfeder 3
It is dismantled.
Broaching tool knife-clamping device is in use, as shown in Figure 1, swaging clamp body is also coaxially extended in 13 lower end of third axis diameter
The 4th axis 14 successively to become smaller and the 5th axis 15,15 surface of the 5th axis is equipped with screw thread, and when installation, the 4th axis 14 is caught in the knife of lathe
On the hole of holder 8,8 upper surface of cutter holder base and 14 shaft shoulder of the 4th axis are against lower surface installs nut 7 by the 5th axis 15 and realizes folder
It fastens.
For traditional broaching machine, generally for the knife handle of different-diameter, cutter holder head can only be corresponded, when replacement is different
Cutter holder head is needed replacing when the broaching tool of shank diameter, since the nose heave amount of cutter holder is all in 10kg or more, by broaching machine main card tool apron intensity
It is influenced with structure, replaces narrow space, especially vertical pull-down broaching machine space is smaller, replaces large labor intensity, changes and produces the time
It is long;Auxiliary knife chuck replacing needs operation of ascending a height, and is easy to fall off, and has certain risk, replaces large labor intensity.In addition, existing
Structured broaching tool knife-clamping device, folder cutter hub hole all must be extracted and be inserted into broaching tool when broaching every time, between all knife handles and hole
There must be certain gap, convenient to extract and be inserted into every time, this gap often influences whether to be broached workpiece outer diameter to broaching
The circular runout in hole reduces the precision of product to be processed.And for the broaching tool of small diameter, slots, can drop on broaching tool knife handle
Low knife handle intensity.It is not clamping and broaching tool is caused to damage that slot shallowly will affect very much broaching tool.
And do not needed as other structures when the design dismounting and change spring ringfeder 3 or broaching tool, nut 7 is unscrewed, it will
Knife handle clamping device is all replaced, and the design only needs to drive 2 trip spring ringfeder 3 of sliding sleeve, take out broaching tool to broaching tool into
Row replacement, if also to dismantle catch means, torsional spring ringfeder 3 there are also if replacement spring ringfeder 3.Disassembly
Labor intensity mitigates significantly, and replacing construction greatly shortens, and improves work efficiency.Moreover, because nut 7 does not need often to dismount,
The precision when installation accuracy for pressing from both sides cutter head being made to keep factory will not abandon part essence because of replacement broaching tool and corresponding clamping device
Degree;In addition it for the broaching tool of small diameter, does not need to slot on broaching tool knife handle, improves knife handle intensity, precision stability is good
Good, knife handle is not allowed easily broken.
The above embodiments are merely illustrative of the technical solutions of the present invention and is not intended to limit it, all without departing from the present invention
Any modification of spirit and scope or equivalent replacement, shall fall within the scope of the technical solution of the present invention.
Claims (10)
1. a kind of broaching tool knife handle component, it is characterised in that: including broaching tool (9) and knife handle clamping device;The broaching tool (9) includes drawing
Knife knife handle (91), the broaching tool knife handle (91) is with one with tapered strip broaching tool handle (93);
The knife handle clamping device fixes the clamping of broaching tool (9) with realizing for clamping strip broaching tool handle (93).
2. broaching tool knife handle component according to claim 1, it is characterised in that: the conical surface oblique angle of the strip broaching tool handle (93)
For β, β value range is [- 5 °, 15 °];When the strip broaching tool handle (93) extends to end and radius becomes larger, β is positive value.
3. broaching tool knife handle component according to claim 2, it is characterised in that: β value range is [0,1 °].
4. broaching tool knife handle component according to any one of claims 1 to 3, it is characterised in that: the strip broaching tool handle (93)
Outer end is provided with the axis (92) that the diameter of axle is greater than strip broaching tool handle (93), the axis (92) and the strip broaching tool handle (93)
Diameter of axle difference is no more than 1.6mm.
5. broaching tool knife handle component according to claim 1, it is characterised in that: the knife handle clamping device includes clamp system
With spring ringfeder (3);
The second cavity is equipped in the middle part of the spring ringfeder (3) for being inserted into broaching tool knife handle (91), spring ringfeder (3) upper end is set
There is the clamping section (31) for hold bar shape broaching tool handle (93);The clamp system is used to exert a force to clamping section (31) solid to hold tightly
Determine strip broaching tool handle (93).
6. broaching tool knife handle component according to claim 5, it is characterised in that: the knife handle clamping device further includes swaging clamp body
(1);
The first cavity is equipped in the middle part of the swaging clamp body (1) and cavity inner wall is provided with the first flange (16), first flange
(16) gap between forms first axis slot (18);
Spring ringfeder (3) lower end is equipped with fixture block (32), and the gap between the fixture block (32) is formed for the first flange
(16) the second axial groove (37) passed through, the fixture block (32) project radially outward into and formation one above it and first convex
The matched ring cutting slot (33) of edge (16);
The fixture block (32) is inserted into along the first cavity along first axis slot (18), and crosses the first flange (16) rotation spring rises afterwards
Set (3) is caught in the first flange (16) in ring cutting slot (33), to realize the axial restraint of spring ringfeder (3).
7. broaching tool knife handle component according to claim 6, it is characterised in that: the clamp system includes sliding sleeve (2);
The sliding sleeve (2) is coaxially set in swaging clamp body (1) outside and can move axially along swaging clamp body (1), and the clamping section (31) is prominent
Card release cutter hub (1) upper end and outer wall is tapered, sliding sleeve (2) upper end are provided with corresponding with clamping section (31) outer wall and tight with it
The bellmouth (21) of patch.
8. broaching tool knife handle component according to claim 7, it is characterised in that: have a plunger shaft inside the sliding sleeve (2)
(22), the swaging clamp body (1) include with matched second axis (12) of plunger shaft (22), second axis (12) is by plunger shaft (22)
It is divided into two chambers, plunger shaft (22) upper and lower ends up and down and is respectively arranged with the first oil inlet for extending outwardly and being in communication with the outside
Hole (221) and the second fuel feed hole (222);The sliding sleeve (2) is provided with the first chamber between bellmouth (21) and plunger shaft (22)
(23), the swaging clamp body (1) further includes first axle (11) and third axis (13), and plunger shaft (22) lower end is opening and is open
Place is equipped with an end cap (4), and the first axle (11), the second axis (12) and third axis (13) are set gradually from top to bottom, described
First axle (11) is matched with the first chamber (23) for being sealed to plunger shaft (22) upper end, the end cap (4) and third axis
(13) it matches and is sleeved on the sealing realized on third axis (13) to plunger shaft (22) lower end.
9. broaching tool knife handle component according to claim 6, it is characterised in that: it further include catch means, the catch means
Spring ringfeder (3) for being caught in the first flange (16) under ring cutting slot (33) state it is circumferentially fixed.
10. broaching tool knife handle component according to claim 9, it is characterised in that: the catch means include snap ring (101) and
Maintenance inserted block (104), swaging clamp body (1) cavity inner wall are provided with multiple second axially aligned with multiple first flanges (16)
Flange (20) and multiple third flanges (17) are respectively formed between second flange (20) and between third flange (17)
Three axial grooves (201) and the 4th axial groove (171), second flange (20) and third flange (17) are in the first flange (16)
Lower section and successively interval setting, the snap ring (101), which is circumferentially provided with to pass through the 4th axial groove (171) and rotate, is caught in second
The latch (1011) in the gap between flange (20) and third flange (17), the maintenance inserted block (104) can pass through third axial direction
Slot (201) and the 4th axial groove (171) insert circumferentially positioned into realizing in the second axial groove (37) to spring ringfeder (3).
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CN109623422B CN109623422B (en) | 2024-03-22 |
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CN110345231A (en) * | 2019-07-09 | 2019-10-18 | 中国航发哈尔滨东安发动机有限公司 | A kind of thrust disc structure |
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CN112009032A (en) * | 2020-08-14 | 2020-12-01 | 龙利得智能科技股份有限公司 | Corrugating machine convenient for adjusting indentation distance and adjusting method |
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