CN206519829U - Floating honing extrusion cladding cutter - Google Patents
Floating honing extrusion cladding cutter Download PDFInfo
- Publication number
- CN206519829U CN206519829U CN201720199393.2U CN201720199393U CN206519829U CN 206519829 U CN206519829 U CN 206519829U CN 201720199393 U CN201720199393 U CN 201720199393U CN 206519829 U CN206519829 U CN 206519829U
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- cutter
- adjustment axis
- cutter body
- honing
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Abstract
The utility model provides a kind of floating honing extrusion cladding cutter, belongs to field of mechanical technique.It solves the problem of existing honing knife assembling is inconvenient, stability is poor.It includes tubular cutter body, there are some rectangular through-holes on cutter body, the slip cutter block with rectangular through-hole snug sliding fit is equipped with each rectangular through-hole, the adjustment axis being coaxially disposed with cutter body is equipped with cutter body, the front end of adjustment axis has the swollen cone with sliding cutter block cone match, if being provided with driving structure between dry-charged plates cutter block, provided with the locking mechanism for being used to make cutter body fix with adjustment axis after adjustment axis is axially moved between cutter body and adjustment axis, each slide has the bar-shaped trough extended along its length in cutter block, oilstone bar is fixed with by bonding agent in bar-shaped trough, the front end of oilstone bar, which has to import, bores.The utility model has the advantages that structural stability is good, honing effect is good.
Description
Technical field
The utility model belongs to field of mechanical technique, is related to a kind of honing knife, and particularly a kind of floating honing extruding is multiple
Close cutter.
Background technology
For the higher workpiece of hole machined required precision, it usually needs the hole that roughing is formed is finished.Honing
It is the conventional process that a kind of device to hole is finished, honing is generally using the honing head insertion roughing with some oilstone bars
Hole in, driven by machine tool chief axis and rotate and make axially reciprocating.Such as Chinese patent discloses a kind of [mandate of honing knife
Notification number is CN2923183], mainly by strip shape oilstone, honing head, coupling bar, gusset piece, coupling block, conical core shaft, transmission
Bar, coupling head and oil stone base composition, gusset piece are located between honing head and coupling bar, and conical core shaft is located in honing head axle center hole
Coordinate with its gap, drive link upper end is connected by straight pin with coupling head, its lower end sequentially passes through the axle center hole of coupling bar, connection
The through hole of block and the through hole of gusset piece are connect, and in the axle center hole of conical core shaft, is connected by straight pin with conical core shaft, oil
Stone seat is located in the rectangular through-hole of honing head to be coordinated with its gap, and oilstone is bonded on oil stone base.
There is problems with above-mentioned honing knife：1st, due to oil stone base and the special construction of conical core shaft, oilstone is caused
Seat and the contact area of conical core shaft are small, and then cause both frictional force small, less to rub when conical core shaft circumferential movement
Wiping power can not drive oil stone base to rotate together, and honing effect is poor；2nd, it is essentially all to be connected to by connecting pin between each component
Together, not only connect inconvenient, and during the rotation of cutter integral circumferential, connecting pin is easy to fall off, less stable；3rd, to taper core
Axle is adjusted axially inconvenience.
The content of the invention
The purpose of this utility model is there is above mentioned problem for existing technology, it is proposed that a kind of structural stability is good,
The good floating honing extrusion cladding cutter of honing effect.
The purpose of this utility model can be realized by following technical proposal：
On this floating honing extrusion cladding cutter, including tubular cutter body, described cutter body radially
It is evenly equipped with some rectangular through-holes, the length direction of the rectangular through-hole and the diameter parallel of cutter body, each rectangular through-hole
It is equipped with to be equipped with the slip cutter block with rectangular through-hole snug sliding fit, described cutter body and is coaxially set with cutter body
The adjustment axis put, the front end of the adjustment axis has a swollen cone with sliding cutter block cone match, some described slip cutter blocks it
If between be provided with and be used to drive the driving structure that abuts to all the time on swollen cone of dry-charged plates cutter block, it is characterised in that described cutter master
Provided with the locking mechanism for being used to make cutter body fix with adjustment axis after adjustment axis is axially moved between body and adjustment axis, each
Have in described slip cutter block in the bar-shaped trough extended along its length, described bar-shaped trough and oil is fixed with by bonding agent
Stone bar, the distance of surface to the adjustment axis axis of the oilstone bar slightly larger than cutter body surface to adjustment axis axis away from
From the front end of the oilstone bar, which has to import, bores.
The rotation of honing machine spindle drives the rotation of adjustment axis, and cutter body rotation is driven in the presence of locking mechanism,
Honing process is carried out by the inwall for protruding the oilstone bar device to hole outside cutter body.The surface of oilstone bar to adjustment axis axis
Distance than cutter body surface to adjustment axis axis distance more than 0.5mm-2mm.Set in the front end of oilstone bar and import cone,
The front end of importing cone is not higher than the surface of cutter body, specifically, importing cone is tilted down forward along the surface of oilstone bar
2 ° of angles.Because swollen cone is with sliding cutter block cone match, when swollen cone is axially moved, the radial motion for sliding cutter block can be switched to, made
It meets the Honing process of different endoporus.
In above-mentioned floating honing extrusion cladding cutter, described locking mechanism includes coaxial sleeve in adjustment axis
And the adjusting nut being threadedly coupled with adjustment axis, there is the extruding being sheathed in adjustment axis between the adjusting nut and cutter body
Bearing, the external diameter of the extruding bearing is slightly larger than the external diameter of cutter body, the work of the inner ring of the extruding bearing in adjusting nut
It is resisted against under on cutter body, the outer end of the extruding bearing can freely be rolled.
The external diameter of bearing is extruded than big 0.5mm of external diameter of cutter body or so, and can be selected according to the internal diameter in hole to be processed
The extruding bearing of various outer diameter.The packing washer being sheathed in adjustment axis is additionally provided between adjusting nut and extruding bearing,
Packing washer is resisted against on the inner ring of extruding bearing in the presence of adjusting nut.
In above-mentioned floating honing extrusion cladding cutter, the front end of the swollen cone has the interior hexagonal extended axially inwardly
Spanner groove.In the presence of driving structure, it is tight fit to slide cutter block with swollen cone, and both frictional force is larger, when rotating swollen cone
Several can be driven to slide cutter block to rotate together；During regulation, adjusting nut is fixed by spanner, in inner hexagon spanner groove interpolation
Enter instrument to rotate swollen cone, realize adjustment axis and the relative position of adjusting nut.By setting adjusting nut, when the axial direction of swollen cone
After position adjustment is good, the axial movement of adjustment axis can be limited by adjusting nut, it is easy to adjust and stability can be greatly improved.
In above-mentioned floating honing extrusion cladding cutter, described driving structure is included located at slip cutter block end
Arc groove one and the arc groove two at the slip cutter block other end, several grooves one constitute annular groove one, the annular
Turn one is provided with groove one；Several grooves two, which are constituted, is provided with turn two in annular groove two, the annular groove two.
In above-mentioned floating honing extrusion cladding cutter, the minimum outer diameter of the swollen cone is located to intersect with adjustment axis
Place, and external diameter of the minimum outer diameter more than adjustment axis of swollen cone, the rear end of the cutter body has the annular extended radially inwardly
Limited step, above-mentioned adjustment axis is located in the limited step, and the internal diameter of limited step is less than the minimum outer diameter of swollen cone.
In above-mentioned floating honing extrusion cladding cutter, what the rear end of the adjustment axis was connected provided with taper shank, with taper shank
Connecting seat and the connecting shaft being coaxially arranged in connecting seat, the front end of the connecting seat are provided with limiting block along one, the connecting shaft
Rear end have with limiting block along a limiting block being equipped with along two, described limiting block has along one and limiting block along between two
There is the thrust bearing being sheathed in connecting shaft, when limiting block is resisted against on thrust bearing and thrust bearing is resisted against limiting block along two
There is gap, described connecting shaft is coaxially solid by shaft coupling and adjustment axis during along along one between the rearward end and taper shank of connecting shaft
Even, drive mechanism is provided between described shaft coupling and connecting seat.
In above-mentioned floating honing extrusion cladding cutter, described drive mechanism includes some located at shaft coupling rearward end
Along its axially extending stopper slot and it is some located at connecting seat front end along its axially extending embedding tooth, described embedding tooth and limit
Position groove corresponds setting and embedding tooth is inserted into corresponding stopper slot.In this structure, stopper slot is set to four and equal
Even distribution, embedding tooth also for four and is uniformly arranged.
In above-mentioned floating honing extrusion cladding cutter, described rectangular through-hole is 2-8 and is uniformly arranged.Namely
It is also 2-8 to say slip cutter block.
In above-mentioned floating honing extrusion cladding cutter, described rectangular through-hole is 6.
Taper shank is installed on the main shaft of honing machine during work, movement of the adjustment axis along its axial direction will drive swollen cone in cutter
Be axially moved in the axis hole of main body, the height that cutter block protrudes cutter body outer cylinder surface slided so as to adjust, make its with it is to be added
The aperture in work hole is adapted.Honing machine spindle rotation drives shaft coupling and adjustment axis to rotate by drive mechanism, so as to drive this
Compound tool integral-rotation, Honing process is carried out by oilstone bar to endoporus.
Compared with prior art, this floating honing extrusion cladding cutter has advantages below：It is applied to processing through hole zero
Part, it is applied widely, the error in axial direction or vertical space can be corrected automatically；Less, general one side eats deep be less than to chipping allowance
0.03 millimeter, it can effectively control the dimensional accuracy of drilling, repair the geometric accuracy in hole；Improve the surface smoothness in hole, processing
Aluminium end cap bearing chamber endoporus roughness is up to more than Ra0.2, and hole roughness is up to more than Ra0.4 in cast iron bearing with end cover room；Can
A small amount of case hardnesses for improving work piece, flow harden Surface Machining layer, improve wearability；Sliding cutter block can be adjusted with small
It is whole, it is greatly improved service life；The cutter can be parallel to axially floating or floating parallel to angle in axially vertical space
Move or have both concurrently simultaneously and float to compensate thermal deformation of machine tool, workpiece installation or cutter in itself in horizontal axis or vertical space
Interior error.
Brief description of the drawings
Fig. 1 is a kind of structural representation for preferred embodiment that the utility model is provided.
Fig. 2 is sectional view at A-A in Fig. 1 that the utility model is provided.
Fig. 3 is sectional view at B-B in Fig. 1 that the utility model is provided.
Fig. 4 is enlarged diagram at C in Fig. 2 that the utility model is provided.
Fig. 5 is sectional view at D-D in Fig. 2 that the utility model is provided.
In figure, 1, cutter body；2nd, cutter block is slided；3rd, adjustment axis；4th, swollen cone；5th, oilstone bar；6th, cone is imported；7th, spiral shell is adjusted
It is female；8th, bearing is extruded；9th, inner hexagon spanner groove；11st, turn one；12nd, turn two；13rd, limited step；14th, taper shank；15、
Connecting seat；16th, connecting shaft；17th, limiting block is along one；18th, limiting block is along two；19th, thrust bearing；20th, shaft coupling；21st, embedding tooth.
Embodiment
The following is specific embodiment of the utility model and with reference to accompanying drawing, further is made to the technical solution of the utility model
Description, but the utility model is not limited to these embodiments.
Floating honing extrusion cladding cutter as depicted in figs. 1 and 2, including tubular cutter body 1, cutter body 1
On be radially evenly equipped with some rectangular through-holes, the length direction of rectangular through-hole and the diameter parallel of cutter body 1, each rectangle
The slip cutter block 2 with rectangular through-hole snug sliding fit is equipped with through hole.As shown in figure 3, being provided with 6 squares in the present embodiment
Shape through hole, it is also 6 to slide cutter block 2.
As shown in Fig. 2 being equipped with the adjustment axis 3 being coaxially disposed with cutter body 1, the front end of adjustment axis 3 in cutter body 1
With the swollen cone 4 with sliding the cone match of cutter block 2, if if being provided between dry-charged plates cutter block 2 is used to drive dry-charged plates cutter block 2 all the time
The driving structure abutted on swollen cone 4.As depicted in figs. 1 and 2, it is provided between cutter body 1 and adjustment axis 3 and works as the axle of adjustment axis 3
It is used for the locking mechanism for making cutter body 1 be fixed with adjustment axis 3 after to motion.As shown in figure 4, each slide has in cutter block 2
Oilstone bar 5 is fixed with by bonding agent in the bar-shaped trough extended along its length, bar-shaped trough, the surface of oilstone bar 5 is extremely adjusted
The distance of the axis of axle 3 is slightly larger than the distance of the surface of cutter body 1 to the axis of adjustment axis 3, and the front end of oilstone bar 5, which has, to be imported
Cone 6.
The rotation of honing machine spindle drives the rotation of adjustment axis 3, drives cutter body 1 to revolve in the presence of locking mechanism
Turn, Honing process is carried out by the inwall for protruding the device to hole of oilstone bar 5 outside cutter body 1.The surface of oilstone bar 5 is to adjustment axis
The distance of 3 axis than the surface of cutter body 1 to the axis of adjustment axis 3 distance more than 0.5mm-2mm.In the front end of oilstone bar 5
Set and import cone 6, the front end of importing cone 6 is not higher than the surface of cutter body 1, specifically, the importing bores 6 along oilstone bar 5
Surface tilts down forward 2 ° of angles.Because swollen cone 4 is with sliding the cone match of cutter block 2, when swollen cone 4 is axially moved, it can switch to slide
The radial motion of moving knife block 2, the Honing process for making it meet different endoporus.
As depicted in figs. 1 and 2, locking mechanism include coaxial sleeve in the adjustment axis 3 and be threadedly coupled with adjustment axis 3
Adjusting nut 7, has the extruding bearing 8 being sheathed in adjustment axis 3, extrudes bearing 8 between the adjusting nut 7 and cutter body 1
External diameter be slightly larger than cutter body 1 external diameter, extruding bearing 8 inner ring cutter body 1 is resisted against in the presence of adjusting nut 7
On, the outer end of extruding bearing 8 can freely be rolled.The external diameter of bearing 8 is extruded than big 0.5mm of external diameter of cutter body 1 or so, and energy
The extruding bearing 8 of various outer diameter is selected according to the internal diameter in hole to be processed.Set is additionally provided between adjusting nut 7 and extruding bearing 8
Packing washer in adjustment axis 3, packing washer is resisted against on the inner ring of extruding bearing 8 in the presence of adjusting nut 7.
As shown in Fig. 2 the front end of swollen cone 4 has the inner hexagon spanner groove 9 extended axially inwardly.In the effect of driving structure
Under, it is tight fit to slide cutter block 2 with swollen cone 4, and both frictional force is larger, and several can be driven to slide cutter block 2 when rotating swollen cone 4
Rotate together；During regulation, adjusting nut 7 is fixed by spanner, in inner hexagon spanner groove 9 insertion instrument come rotate it is swollen cone 4,
Realize the relative position of adjustment axis 3 and adjusting nut 7.By setting adjusting nut 7, after the axial location of swollen cone 4 is adjusted,
The axial movement of adjustment axis 3 can be limited by adjusting nut 7, it is easy to adjust and stability can be greatly improved.
As shown in Figure 1 and Figure 4, driving structure is included located at the arc groove one for sliding the end of cutter block 2 and located at slip
Arc groove two at the other end of cutter block 2, several grooves one, which are constituted, is provided with turn one in annular groove one, the annular groove one
11；Several grooves two, which are constituted, is provided with turn 2 12 in annular groove two, the annular groove two.
As shown in Fig. 2 the minimum outer diameter of swollen cone 4 is located at the intersection with adjustment axis 3, and the minimum outer diameter of swollen cone 4 is more than
The external diameter of adjustment axis 3, the rear end of cutter body 1 has the annular stop step 13 extended radially inwardly, and adjustment axis 3 is located in this
In limited step 13, the internal diameter of limited step 13 is less than the minimum outer diameter of swollen cone 4.
As shown in Fig. 2 connecting seat 15 of the rear end of adjustment axis 3 provided with taper shank 14, connected with taper shank 14 and coaxial being arranged in
Connecting shaft 16 in connecting seat 15, the front end of connecting seat 15 provided with limiting block along 1, the rear end of connecting shaft 16 have with it is spacing
Gear is along one 17 limiting blocks being equipped with along 2 18, and limiting block has along one 17 and limiting block along between 2 18 is sheathed on connecting shaft
Thrust bearing 19 on 16, when limiting block is resisted against on thrust bearing 19 and thrust bearing 19 is resisted against limiting block along one along 2 18
There is gap, connecting shaft 16 is coaxial by shaft coupling 20 and adjustment axis 3 when on 17 between the rearward end of connecting shaft 16 and taper shank 14
It is connected, drive mechanism is provided between shaft coupling 20 and connecting seat 15.
As shown in Figure 2 and Figure 5, drive mechanism includes some axially extending spacing along its located at shaft coupling 20 rearward end
Groove and it is some located at the front end of connecting seat 15 along its axially extending embedding tooth 21, embedding tooth 21 corresponds setting and embedding with stopper slot
Tooth 21 is inserted into corresponding stopper slot.Stopper slot is set to four and is uniformly distributed, and embedding tooth 21 is also for four and uniform
Set.
Taper shank 14 is installed on the main shaft of honing machine during work, movement of the adjustment axis 3 along its axial direction will drive swollen cone 4 to exist
It is axially moved in the axis hole of cutter body 1, slides the height that cutter block 2 protrudes the outer cylinder surface of cutter body 1 so as to adjust, make it
It is adapted with the aperture in hole to be processed.Honing machine spindle rotation drives shaft coupling 20 and adjustment axis 3 to rotate by drive mechanism, from
And this compound tool integral-rotation is driven, Honing process is carried out to endoporus by oilstone bar 5.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement or using similar to described specific embodiment
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Claims (9)
1. edge on a kind of floating honing extrusion cladding cutter, including tubular cutter body (1), described cutter body (1)
Its radial equipartition has some rectangular through-holes, the length direction of the rectangular through-hole and the diameter parallel of cutter body (1), Mei Geju
Be equipped with the slip cutter block (2) with rectangular through-hole snug sliding fit in shape through hole, be equipped with described cutter body (1) with
The adjustment axis (3) that cutter body (1) is coaxially disposed, the front end of the adjustment axis (3) has with sliding cutter block (2) cone match
Swollen cone (4), some described slip cutter blocks (2) if between be provided with and be used to drive dry-charged plates cutter block (2) to abut to swollen cone (4) all the time
On driving structure, it is characterised in that between described cutter body (1) and adjustment axis (3) be provided with when adjustment axis (3) axially transport
It is used for that there is edge in the locking mechanism for making cutter body (1) fixed with adjustment axis (3), each described slip cutter block (2) after dynamic
Oilstone bar (5), the oilstone bar (5) are fixed with by bonding agent in the bar-shaped trough of its length direction extension, described bar-shaped trough
Surface to adjustment axis (3) axis distance slightly larger than cutter body (1) surface to the distance of adjustment axis (3) axis, institute
Stating the front end of oilstone bar (5) has importing cone (6).
2. floating honing extrusion cladding cutter according to claim 1, it is characterised in that described locking mechanism includes same
Axle sleeve is located at adjusting nut (7) that is in adjustment axis (3) and being threadedly coupled with adjustment axis (3), the adjusting nut (7) and cutter master
There is the extruding bearing (8) being sheathed in adjustment axis (3), the external diameter of the extruding bearing (8) is slightly larger than cutter master between body (1)
The external diameter of body (1), the inner ring of the extruding bearing (8) is resisted against in the presence of adjusting nut (7) on cutter body (1), institute
Stating the outer end of extruding bearing (8) can freely roll.
3. floating honing extrusion cladding cutter according to claim 1, it is characterised in that the front end tool of the swollen cone (4)
There is the inner hexagon spanner groove (9) extended axially inwardly.
4. floating honing extrusion cladding cutter according to claim 1, it is characterised in that described driving structure includes setting
In the arc groove one for sliding cutter block (2) end and located at the arc groove two slided at cutter block (2) other end, several are recessed
Groove one, which is constituted, is provided with turn one (11) in annular groove one, the annular groove one；Several grooves two constitute annular groove two, the annular
Turn two (12) is provided with groove two.
5. floating honing extrusion cladding cutter according to claim 1, it is characterised in that the minimum of the swollen cone (4) is outer
Footpath is located at the intersection with adjustment axis (3), and external diameter of the minimum outer diameter more than adjustment axis (3) of swollen cone (4), the cutter body
(1) rear end has the annular stop step (13) extended radially inwardly, and above-mentioned adjustment axis (3) is located in the limited step
(13) in, the internal diameter of limited step (13) is less than the minimum outer diameter of swollen cone (4).
6. floating honing extrusion cladding cutter according to claim 1, it is characterised in that the rear end of the adjustment axis (3)
The connecting seat (15) being connected provided with taper shank (14), with taper shank (14) and the coaxial connecting shaft (16) being arranged in connecting seat (15),
The front end of the connecting seat (15) is provided with limiting block along one (17), and the rear end of the connecting shaft (16) has with limiting block along one
(17) limiting block being equipped with is along two (18), and described limiting block is arranged along one (17) and limiting block along having between two (18)
In the thrust bearing (19) in connecting shaft (16), when limiting block is resisted against on thrust bearing (19) and thrust bearing along two (18)
(19) there is gap, described company when being resisted against limiting block along along one (17) between the rearward end of connecting shaft (16) and taper shank (14)
Spindle (16) is connected by the way that shaft coupling (20) and adjustment axis (3) are coaxial, is set between described shaft coupling (20) and connecting seat (15)
There is drive mechanism.
7. floating honing extrusion cladding cutter according to claim 6, it is characterised in that if described drive mechanism includes
It is dry located at shaft coupling (20) rearward end along its axially extending stopper slot and it is some located at connecting seat (15) front end along its axle
To the embedding tooth (21) of extension, described embedding tooth (21) corresponded with stopper slot set and embedding tooth (21) be inserted into it is corresponding
In stopper slot.
8. floating honing extrusion cladding cutter according to claim 1, it is characterised in that described rectangular through-hole is 2-8
It is individual and be uniformly arranged.
9. floating honing extrusion cladding cutter according to claim 8, it is characterised in that described rectangular through-hole is 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720199393.2U CN206519829U (en) | 2017-03-02 | 2017-03-02 | Floating honing extrusion cladding cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720199393.2U CN206519829U (en) | 2017-03-02 | 2017-03-02 | Floating honing extrusion cladding cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206519829U true CN206519829U (en) | 2017-09-26 |
Family
ID=59893340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720199393.2U Expired - Fee Related CN206519829U (en) | 2017-03-02 | 2017-03-02 | Floating honing extrusion cladding cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206519829U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108044496A (en) * | 2017-12-15 | 2018-05-18 | 广新海事重工股份有限公司 | A kind of frock for being used to increase close-fitting hole finish |
| CN110125791A (en) * | 2019-07-03 | 2019-08-16 | 安徽多邦珩磨技术有限公司 | A kind of float connector |
| CN116237826A (en) * | 2023-05-11 | 2023-06-09 | 四川省卓辰精密机械制造有限公司 | Valve piece oilhole grinding tool and grinding device |
-
2017
- 2017-03-02 CN CN201720199393.2U patent/CN206519829U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108044496A (en) * | 2017-12-15 | 2018-05-18 | 广新海事重工股份有限公司 | A kind of frock for being used to increase close-fitting hole finish |
| CN110125791A (en) * | 2019-07-03 | 2019-08-16 | 安徽多邦珩磨技术有限公司 | A kind of float connector |
| CN110125791B (en) * | 2019-07-03 | 2024-04-02 | 安徽多邦珩磨技术有限公司 | Floating connector |
| CN116237826A (en) * | 2023-05-11 | 2023-06-09 | 四川省卓辰精密机械制造有限公司 | Valve piece oilhole grinding tool and grinding device |
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| GR01 | Patent grant | ||
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Granted publication date: 20170926 Termination date: 20200302 |