CN205538453U - A instrument head clamping device that is used for high -speed drawing to wipe testing machine - Google Patents
A instrument head clamping device that is used for high -speed drawing to wipe testing machine Download PDFInfo
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- CN205538453U CN205538453U CN201620112053.7U CN201620112053U CN205538453U CN 205538453 U CN205538453 U CN 205538453U CN 201620112053 U CN201620112053 U CN 201620112053U CN 205538453 U CN205538453 U CN 205538453U
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- pull bar
- testing machine
- clamping device
- tool heads
- scratching
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Abstract
The utility model discloses an instrument head clamping device that is used for high -speed drawing to wipe testing machine, including the anchor clamps body, pull rod, end cover, hand wheel, cutter arbor, instrument head, internal counter sink and the taper hole of being equipped with of anchor clamps, the pull rod dress connects in the counter sink and the pull rod facial make -up has met footstep bearing, the end cover dress connects at anchor clamps body upper surface, the hand wheel rigid coupling is on the pull rod top, the cutter arbor is installed and removed and is connect under the pull rod, and the cutter arbor has the cone structure with the taper hole adaptation, and this cone structure is located the taper hole, the instrument head is installed and removed and is connect in the cutter arbor lower part. The utility model discloses an instrument head clamping device that is used for high -speed drawing to wipe testing machine, but the quick clamping of implementation tool head, and the repeated positioning accuracy of instrument head clamping precision is higher, also has higher rigidity simultaneously.
Description
Technical field
This utility model relates to a kind of tool heads clamping device for scratching at a high speed testing machine.
Background technology
Single abrasive particle scratching experiment, as a kind of important method understanding grinding in depth, is used the most widely.For
Simulating the machining condition of Grinding Process abrasive particle more really, many scholar designed, designeds scratching testing machine at a high speed is also carried out
Related experiment.In scratching experiment at a high speed, abrasive particle being typically fixedly arranged at tool heads, tool heads is fixed on scratching testing machine, therefore,
The clamping quality of tool heads becomes the key factor of single abrasive particle scratching experimental precision of impact.But it is high also to lack a kind of rigidity at present, dress
Folder precision is high, conveniently tool heads clamping device.
Utility model content
In place of the purpose of this utility model is to overcome the deficiencies in the prior art, it is provided that a kind of instrument for scratching at a high speed testing machine
Head clamping device, can the quick-clamping of implementation tool head, and the repetitive positioning accuracy of tool heads clamping precision is higher, also has simultaneously
Higher rigidity.
This utility model solves its technical problem and be the technical scheme is that
A kind of tool heads clamping device for scratching at a high speed testing machine, including:
Clamp body, is fixed in testing machine；The counter sink and taper hole arranged up and down and be interconnected it is provided with in this clamp body；
Pull bar, is installed in clamp body counter sink and pull bar stretches out outside clamp body upper surface；On this pull bar, attaching has thrust bearing；
By spacing for the thrust bearing end cap in counter sink, it is installed in clamp body upper surface；This end cap is provided with through hole, and pull bar is upwards
Stretch out this through hole；
Handwheel, is fixed in pull bar top；
Knife bar, mounting or dismounting are installed under pull bar, and knife bar bottom is stretched out outside clamp body lower surface；This knife bar has adaptive with taper hole
Cone structure, this cone structure is positioned at taper hole；
Tool heads, mounting or dismounting are installed in knife bar bottom.
In one embodiment: described pull bar is provided with the axle ring for positioning thrust bearing；Described thrust bearing is two, two
Individual thrust bearing lays respectively at axle ring both sides.
In one embodiment: described axle ring and two thrust bearings are positioned at the counter sink of clamp body, and the seat ring of the thrust bearing of top
Upper surface is slightly above clamp body upper surface.
In one embodiment: the tapering of described taper hole is 7:24；The tapering of described cone structure is 7:24.
In one embodiment: the cone structure upper surface of described knife bar is provided with screwed hole, described pull bar hypomere has external thread structure, logical
Cross the corresponding threaded holes of this external thread structure and cone structure upper surface to close and be spirally connected.
In one embodiment: described knife bar knife bar lower surface is provided with another screwed hole；Described tool heads afterbody is another external thread structure,
Closed by another corresponding threaded holes of this another external thread structure with knife bar lower surface and be spirally connected.
In one embodiment: described pull bar top is square structure, described handwheel center has square opening, by this square opening and pull bar
The square structure adaptation attaching on top, and by a cheese head screw, handwheel compression is fixed in pull bar top.
In one embodiment: the thickness of described pull bar top square structure is slightly less than handwheel thickness；
In one embodiment: form matched in clearance between described end cap and pull bar；Matched in clearance is formed between described pull bar and clamp body.
In one embodiment: its circumferential surface annular knurl of described handwheel.
The technical program is compared with background technology, and it has the advantage that
Tool heads clamping device for scratching at a high speed testing machine of the present utility model, uses screw thread to join between pull bar, knife bar and tool heads
Close and connect, can the quick-clamping of implementation tool head and dismounting；Form cone between knife bar with clamp body to be connected, and on pull bar, attaching has thrust
Bearing, can eliminate frictional force when pull bar rotates, by end cap, thrust bearing be carried out spacing and pretension, it is simple to regulation so that
The repetitive positioning accuracy of tool heads clamping precision is higher, also has higher rigidity simultaneously.
Accompanying drawing explanation
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the tool heads clamping device front elevational schematic for scratching at a high speed testing machine of the present utility model.
Fig. 2 is the tool heads clamping device schematic top plan view for scratching at a high speed testing machine of the present utility model.
Fig. 3 is that pull bar of the present utility model assembles schematic diagram with handwheel.
Reference: clamp body 1, knife bar 2, end cap 3, thrust bearing 4, pull bar 5, handwheel 6, cheese head screw 7, interior hexagonal
Screw 8, tool heads 9.
Detailed description of the invention
Content of the present utility model is illustrated below by embodiment:
Refer to Fig. 1 to Fig. 3, a kind of tool heads clamping device for scratching at a high speed testing machine, including:
Clamp body 1, is fixed in testing machine by four screws；It is provided with, in this clamp body 1, the counter sink arranged up and down and be interconnected
It is the taper hole of 7:24 with tapering；
Pull bar 5, is installed in clamp body 1 counter sink and pull bar 5 stretches out outside clamp body 1 upper surface；This pull bar 5 is provided with axle
Ring, two thrust bearings 4 are installed on pull bar 5 and are close to two end faces of axle ring respectively, and two end faces of this axle ring are respectively used to
The installation location of two thrust bearings 4, two thrust bearings 4 can eliminate frictional force when pull bar 5 rotates；Described axle ring and two
Individual thrust bearing 4 is respectively positioned in the counter sink of clamp body 1, and the seat ring upper surface of the thrust bearing 4 of top is slightly above clamp body 1
Upper surface；
End cap 3, this end cap 3 is provided with through hole, and pull bar 5 protrudes upward this through hole；End cap 3 be provided with two be arranged symmetrically with heavy
Head bore, end cap 3 is fixed in clamp body 1 upper surface by counter sink by two soket head cap screws 8；End cap 3 by thrust bearing 4 with
Axle ring is limited in the counter sink of clamp body 1, and can adjust the pre-of thrust bearing 4 by adjusting the tightness of soket head cap screw 8
Clamp force；
Handwheel 6, this handwheel 6 circumferential surface annular knurl, its center has square opening；Described pull bar 5 top is square structure, square
The thickness of structure is slightly less than handwheel 6 thickness 1～3mm；Handwheel 6 is filled by the square structure adaptation of this square opening with pull bar 5 top
Connect, and by a cheese head screw 7, handwheel 6 compression is fixed in pull bar 5 top；
Knife bar 2, the cone structure that tapering is 7:24 that this knife bar 2 has and taper hole is adaptive, this cone structure be positioned at taper hole so that
Knife bar 2 forms cone with clamp body 1 and is connected；Cone structure upper surface is provided with screwed hole, and described pull bar 5 hypomere has external thread structure,
Closed by the corresponding threaded holes of this external thread structure with cone structure upper surface and be spirally connected, so that pull bar 5 strains knife bar 2, and knife bar 2
Bottom is stretched out outside clamp body 1 lower surface；
Tool heads 9, tool heads 9 afterbody is another external thread structure, and described knife bar 2 lower surface is provided with another screwed hole, tool heads
9 are screwed onto knife bar 2 bottom by another external thread structure and another corresponding threaded holes.
Among the present embodiment, between described end cap 3 and pull bar 5, form matched in clearance；Gap is formed between described pull bar 5 and clamp body 1
Coordinate.
During assembling, first two thrust bearings 4 are loaded from the two ends of pull bar 5 respectively, make two thrust bearings 4 be close to pull bar 5 axle respectively
Two collar end faces of ring, then the pull bar 5 being loaded into thrust bearing 4 loads in the counter sink of clamp body 1 upper end, two thrusts
Bearing 4 and axle ring sink in counter sink.Then end cap 3 is assembled on clamp body 1, and by two soket head cap screws 8 by it
It is fastened on clamp body 1.Finally handwheel 6 is assembled on the square structure of pull bar 5, and screws cheese head screw 7.Assembly tool
When 9, first by tool heads 9 by screw threads for fastening at the afterbody of knife bar 2, then the cone structure on knife bar 2 top is encased in folder
In concrete 1 taper hole, and screw handwheel 6 knife bar 2 is clamped.
The above, only this utility model preferred embodiment, therefore the scope that this utility model is implemented can not be limited according to this, i.e.
The equivalence change made according to this utility model the scope of the claims and description and modification, all should still belong to the scope that this utility model is contained
In.
Claims (10)
1. the tool heads clamping device being used for scratching at a high speed testing machine, it is characterised in that: including:
Clamp body, is fixed in testing machine；The counter sink and taper hole arranged up and down and be interconnected it is provided with in this clamp body；
Pull bar, is installed in clamp body counter sink and pull bar stretches out outside clamp body upper surface；On this pull bar, attaching has thrust bearing；
By spacing for the thrust bearing end cap in counter sink, it is installed in clamp body upper surface；This end cap is provided with through hole, and pull bar protrudes upward this through hole；
Handwheel, is fixed in pull bar top；
Knife bar, mounting or dismounting are installed under pull bar, and knife bar bottom is stretched out outside clamp body lower surface；This knife bar has the cone structure adaptive with taper hole, and this cone structure is positioned at taper hole；
Tool heads, mounting or dismounting are installed in knife bar bottom.
A kind of tool heads clamping device for scratching at a high speed testing machine the most according to claim 1, it is characterised in that: described pull bar is provided with the axle ring for positioning thrust bearing；Described thrust bearing is two, and two thrust bearings lay respectively at axle ring both sides.
A kind of tool heads clamping device for scratching at a high speed testing machine the most according to claim 2, it is characterized in that: described axle ring and two thrust bearings are positioned at the counter sink of clamp body, and the seat ring upper surface of the thrust bearing of top is slightly above clamp body upper surface.
A kind of tool heads clamping device for scratching at a high speed testing machine the most according to claim 1, it is characterised in that: the tapering of described taper hole is 7:24；The tapering of described cone structure is 7:24.
A kind of tool heads clamping device for scratching at a high speed testing machine the most according to claim 1, it is characterized in that: the cone structure upper surface of described knife bar is provided with screwed hole, described pull bar hypomere has external thread structure, is closed by the corresponding threaded holes of this external thread structure with cone structure upper surface and is spirally connected.
A kind of tool heads clamping device for scratching at a high speed testing machine the most according to claim 5, it is characterised in that: described knife bar knife bar lower surface is provided with another screwed hole；Described tool heads afterbody is another external thread structure, is closed by another corresponding threaded holes of this another external thread structure with knife bar lower surface and is spirally connected.
A kind of tool heads clamping device for scratching at a high speed testing machine the most according to claim 1, it is characterized in that: described pull bar top is square structure, described handwheel center has square opening, by the square structure adaptation attaching of this square opening Yu pull bar top, and by a cheese head screw, handwheel compression is fixed in pull bar top.
A kind of tool heads clamping device for scratching at a high speed testing machine the most according to claim 7, it is characterised in that: the thickness of described pull bar top square structure is slightly less than handwheel thickness.
A kind of tool heads clamping device for scratching at a high speed testing machine the most according to claim 1, it is characterised in that: form matched in clearance between described end cap and pull bar；Matched in clearance is formed between described pull bar and clamp body.
A kind of tool heads clamping device for scratching at a high speed testing machine the most according to claim 1, it is characterised in that: its circumferential surface annular knurl of described handwheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620112053.7U CN205538453U (en) | 2016-02-04 | 2016-02-04 | A instrument head clamping device that is used for high -speed drawing to wipe testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620112053.7U CN205538453U (en) | 2016-02-04 | 2016-02-04 | A instrument head clamping device that is used for high -speed drawing to wipe testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205538453U true CN205538453U (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620112053.7U Active CN205538453U (en) | 2016-02-04 | 2016-02-04 | A instrument head clamping device that is used for high -speed drawing to wipe testing machine |
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| CN (1) | CN205538453U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105675392A (en) * | 2016-02-04 | 2016-06-15 | 华侨大学 | Tool head clamping device for high-speed scratching testing machine |
-
2016
- 2016-02-04 CN CN201620112053.7U patent/CN205538453U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105675392A (en) * | 2016-02-04 | 2016-06-15 | 华侨大学 | Tool head clamping device for high-speed scratching testing machine |
| CN105675392B (en) * | 2016-02-04 | 2018-08-28 | 华侨大学 | A kind of tool head clamping device for scratching testing machine at a high speed |
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