CN206123441U - Deep hole brill drillstock clamping structure for grinding - Google Patents
Deep hole brill drillstock clamping structure for grinding Download PDFInfo
- Publication number
- CN206123441U CN206123441U CN201621186250.XU CN201621186250U CN206123441U CN 206123441 U CN206123441 U CN 206123441U CN 201621186250 U CN201621186250 U CN 201621186250U CN 206123441 U CN206123441 U CN 206123441U
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- CN
- China
- Prior art keywords
- drillstock
- chuck
- groove
- grip
- draw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a deep hole brill drillstock clamping structure for grinding, including the chuck, seted up the through -hole in chuck center department, along the chuck radially seted up a plurality of recesses on its surface, be equipped with the center pin in the grip slipper, be equipped with the screw thread section at the center pin middle part, be equipped with the opening on the grip slipper horizontal segment, screw thread section local outstanding in the opening, slider bottom and screw thread section screw -thread fit are equipped with the spout on two vertical section inside walls of grip slipper, all be equipped with protrudingly on the wall of slider both sides, the protruding slip sets up in the spout, is close to at the slider be equipped with the grip block on the lateral wall of through -hole. The utility model discloses well slider bottom and screw section screw -thread fit, simultaneously the slider both sides set up protruding place the spout in, the stress produced because of beating in the radial or axial of drillstock is promptly offset by the reaction force that spout and screw section produced, and then avoids adhering to piece or slider production and rock, and the grip slipper is fixed on the chuck, can guarantee promptly that the drillstock of deep hole brill is stablized the centre gripping.
Description
Technical field
The utility model is related to drill bit manufacture field, specifically refers to a kind of deep hole drill shank grinding clamp structure.
Background technology
Dedicated for the drill bit of deep hole processing.Generally the hole that hole depth is more than 6 with the ratio in aperture is called in machining
Deep hole.During gun drilling, radiating and chip removal are difficult, and the poor rigidity because drilling rod is elongated, are also easy to produce bending and vibrate.Therefore, exist
When depth drill is fabricated, specific processing equipment is needed to be processed.
Depth drill includes drill lip and drillstock, i.e. active section and canned paragraph, the drillstock of depth drill（Canned paragraph）Typically fixed
On fixture, it is being to increase stability when drillstock is fixed, it will usually which multiple clamping faces are arranged on drillstock makes drillstock into prismatic,
Keyway is opened up again or on drillstock, to facilitate the clamping of drillstock.In prior art, drillstock is in grinding due to by polishing portion
The impact of part, drillstock itself can produce certain vibration, and then cause drillstock to be moved along the axial direction of itself or radially, i.e.,
Causing the clamping face or keyway molding effect of drillstock reduces, and easily occurs loosening when in use, ultimately results in depth drill and fractures
And the drilling quality of workpiece is not up to standard.
Utility model content
The purpose of this utility model is to provide a kind of deep hole drill shank grinding clamp structure, and drillstock is steady in polishing
Qualitative energy, and then improve the machining accuracy purpose of depth drill.
The purpose of this utility model is achieved through the following technical solutions：
A kind of deep hole drill shank grinding clamp structure, including chuck, offer through hole, along institute at the chuck hub
The radial direction for stating chuck offers multiple grooves on its surface, and inside opens up the grip slipper of cavity and is fixed in groove, in grip slipper
Central shaft is inside provided with, described central shaft one end is rotatably arranged on cavity on the side wall of the through hole, the central shaft other end is lived
It is dynamic to run through the cavity and stretch out, thread segment is provided with the middle part of central shaft, the grip slipper takes the shape of the letter U, and in grip slipper water
Flat section is provided with the opening connected with cavity, and the local of thread segment protrudes from the opening, also including slide block, the slider bottom
Coordinate with the thread segment screw thread, on two vertical section madial walls of grip slipper chute is provided with, slide block is equipped with two side
Projection, and the tab slides are arranged in chute, and grip block is provided with the side wall of the through hole in the slide block, are led to
The extension of rotary middle spindle is crossed, makes grip block move reciprocatingly along the radial direction of chuck.During work, chuck is fixed on into processing machine
On bed, the drillstock of depth drill is placed in the clamping zone that multiple grip blocks are constituted through through hole, now, rotates multiple centers
The extension of axle so that slide block coordinates to realize the movement in chuck radially, i.e. grip block by the screw thread with thread segment
Side wall is brought into close contact with drillstock, and when the portion to be processed of drillstock contacts positioned at grinding attachment, drillstock can produce radial direction or axial direction
On bounce, and the applied stress for producing is transferred directly on slide block and grip slipper, slider bottom and thread segment spiral shell in the present invention
Line coordinates, while the projection that slide block both sides are arranged is placed in chute, i.e., drillstock radially or axially on the stress that produces because of bounce
Offset by the reaction force that chute and thread segment are produced, and then avoid adhering to that block or slide block generation are rocked, and grip slipper
It is fixed on chuck, that is, the drillstock of depth drill is ensure that by stable holding, to improve drillstock in the precision for adding man-hour.
The lateral wall of the grip block forms arc surface along the radially outward depression of chuck, and distinguishes at the two ends of grip block
It is provided with the draw-in groove of the diameter parallel of axis and chuck, the draw-in groove both ends open and its cross section is in major arc shape, at grip block bottom
Portion is hinged and is provided with block, and draw-in groove lower ending opening is closed columned wear rib and is embedded in the draw-in groove by the block, drillstock
When clamped, arc surface is integrally brought into close contact with the local of drillstock outer circle wall, and wear rib is tangent with drillstock outer circle wall.Deep hole
The drillstock of brill is integrally cylindrical, and on the lateral wall of grip block arc surface is provided with so that the contact area of grip block and drillstock
Increase, and draw-in groove is set at the two ends of grip block, draw-in groove has been embedded in wear rib, and the wherein cross section of draw-in groove is major arc shape, resistance to
The exposed part of abrasive stick is less, and when drillstock is by multiple arc surface clamping fasteners, arc surface keeps face to contact with drillstock, and
Two wear ribs respectively with drillstock linear contact lay so that keep linear contact lay, face to contact between drillstock and multiple grip blocks simultaneously；And with
The wear rib of drillstock linear contact lay can carry out to it spacing in the circumference of drillstock, i.e., add man-hour to occur circumferentially rotating trend in drillstock
When, wear rib can slow down obstruction the movement tendency, to avoid drillstock from circumferentially rotating, while wear rib adopts anti-wear performance
Good material, while drillstock is ensured by stable holding, additionally it is possible to extend the service life of wear rib, reduces use cost.
The wear rib is made up of solid self lubricant material.Preferably, by made by solid self lubricant material wear rib
Possessing protection function of surface kollag should have good film forming ability, can form firm chemisorbed with friction surface
Film or physical absorption film, in drillstock surface attachment, prevent from producing serious melting welding between drillstock and grip block relative motion surface
Or the mutual transfer of metal, to protect drillstock outer wall not frayed；Wherein solid self lubricant material can be silicon nitride, polytetrafluoroethyl-ne
One kind in alkene, polyformaldehyde, polyimides, ekonol, sintering graphite and nylon, it is possible to decrease servo-actuated ring body
Processing cost.
The lateral wall of the grip block forms arc surface along the radially outward depression of chuck, and distinguishes at the two ends of grip block
The draw-in groove of axis and the diameter parallel of chuck is provided with, the cross section of the draw-in groove is in major arc shape, and elastic caoutchouc rod is embedded in the card
In groove.The drillstock of depth drill is integrally cylindrical, and on the lateral wall of grip block arc surface is provided with so that grip block and drillstock
Contact area increases, and arranges draw-in groove at the two ends of grip block, and draw-in groove is embedded in flexible rubber bar, the wherein cross section of draw-in groove
For major arc shape, the exposed part of elastic caoutchouc rod is less, when drillstock is by multiple arc surface clamping fasteners, arc surface with bore
Handle keeps face contact, and two elastic caoutchouc rods respectively with drillstock linear contact lay so that protect simultaneously between drillstock and multiple grip blocks
Hold linear contact lay, face contact；And it can be carried out in the circumference of drillstock with the elastic caoutchouc rod of drillstock linear contact lay spacing, that is, boring
When handle adds man-hour to occur circumferentially rotating trend, elastic caoutchouc rod can be by the effect produced by self-deformation or deformation recovery
Power hinders the movement tendency to slow down, to avoid drillstock from circumferentially rotating, to ensure drillstock by stable holding.
The utility model compared with prior art, has the following advantages and advantages：
1st, the utility model slider bottom and thread segment screw thread coordinate, while the projection that slide block both sides are arranged is placed in chute
Interior, i.e., drillstock is radially or axially the upper stress produced because of bounce is offset by the reaction force of chute and thread segment generation,
And then avoid adhering to that block or slide block generation are rocked, and grip slipper is fixed on chuck, that is, ensure that the drillstock of depth drill
By stable holding, to improve drillstock in the precision for adding man-hour；
2nd, the wear rib of the utility model and drillstock linear contact lay it can be carried out in the circumference of drillstock it is spacing, i.e., in drillstock
Plus man-hour is when there is circumferentially rotating trend, wear rib can slow down the obstruction movement tendency, to avoid drillstock from circumferentially rotating,
Simultaneously wear rib adopts the good material of anti-wear performance, while drillstock is ensured by stable holding, additionally it is possible to extend wear rib
Service life, reduces use cost；
3rd, the elastic caoutchouc rod of the utility model and drillstock linear contact lay can carry out to it spacing in the circumference of drillstock, that is, exist
When drillstock adds man-hour to occur circumferentially rotating trend, elastic caoutchouc rod can be by the work produced by self-deformation or deformation recovery
Exert oneself to hinder the movement tendency to slow down, to avoid drillstock from circumferentially rotating, to ensure drillstock by stable holding.
Description of the drawings
Accompanying drawing described herein is used for providing further understanding the utility model embodiment, constitutes the one of the application
Part, does not constitute the restriction to the utility model embodiment.In the accompanying drawings：
Fig. 1 is the utility model structural representation；
Fig. 2 is the structural representation of grip block.
Mark and corresponding parts title in accompanying drawing：
1- chucks, 2- chutes, 3- grip slippers, 4- central shafts, 5- thread segments, 6- slide blocks, 7- grip blocks, 8- arc surfaces, 9-
Wear rib.
Specific embodiment
To make the purpose of this utility model, technical scheme and advantage become more apparent, with reference to embodiment and accompanying drawing,
The utility model is described in further detail, and exemplary embodiment of the present utility model and its explanation are only used for explaining this
Utility model, is not intended as to restriction of the present utility model.
Embodiment 1
As depicted in figs. 1 and 2, the present embodiment includes chuck 1, through hole is offered in the center of the chuck 1, along the card
The radial direction of disk 1 offers multiple grooves on its surface, and inside opens up the grip slipper 3 of cavity and is fixed in groove, in grip slipper 3
Central shaft 4 is provided with, the one end of the central shaft 4 is rotatably arranged on cavity on the side wall of the through hole, the other end of central shaft 4 is lived
It is dynamic to run through the cavity and stretch out, thread segment 5 is provided with the middle part of central shaft 4, the grip slipper 3 takes the shape of the letter U, and in grip slipper
3 horizontal segments are provided with the opening connected with cavity, and the local of thread segment 5 protrudes from the opening, also including slide block 6, the cunning
The bottom of block 6 coordinates with the screw thread of the thread segment 5, and chute 2, the both sides of slide block 6 are provided with two vertical section madial walls of grip slipper 3
Projection is equipped with wall, and the tab slides are arranged in chute 2, in the slide block 6 on the side wall of the through hole
Grip block 7 is provided with, by the extension of rotary middle spindle 4, makes grip block 7 move reciprocatingly along the radial direction of chuck 1.
During work, chuck 1 is fixed on machining tool, the drillstock of depth drill is placed in into multiple grip blocks 7 through through hole
In the clamping zone for being constituted, now, the extension of multiple central shafts 4 is rotated so that slide block 6 is by the screw thread with thread segment 5
The side wall for coordinating to realize the movement in chuck 1 radially, i.e. grip block 7 is brought into close contact with drillstock, in the Ministry of worker to be added of drillstock
When contacting positioned at grinding attachment, drillstock can produce the bounce radially or on axial direction, and the applied stress for producing is transferred directly to
On slide block 6 and grip slipper 3, the bottom of slide block 6 coordinates with the screw thread of thread segment 5 in the present invention, while the projection that the both sides of slide block 6 are arranged is put
In chute 2, i.e., drillstock radially or axially on the reaction that produced by chute 2 and thread segment 5 of the stress that produces because of bounce
Power is offset, and then avoids adhering to that block or the generation of slide block 6 are rocked, and grip slipper 3 is fixed on chuck 1, that is, ensure that
The drillstock of depth drill by stable holding, with improve drillstock plus man-hour precision.
In the present embodiment, the lateral wall of the grip block 7 forms arc surface 8 along the radially outward depression of chuck 1, and
The two ends of grip block 7 have a draw-in groove of the diameter parallel of axis and chuck 1, the draw-in groove both ends open and its cross section is in
Major arc shape, is hinged in the bottom of grip block 7 and is provided with block, and draw-in groove lower ending opening is closed columned wear rib 9 by the block
Be embedded in the draw-in groove, when drillstock be clamped, arc surface 8 is overall to be brought into close contact with the local of drillstock outer circle wall, wear rib 9 and
Drillstock outer circle wall is tangent.The drillstock of depth drill is integrally cylindrical, and arc surface 8 is provided with the lateral wall of grip block 7 so that
Grip block 7 increases with the contact area of drillstock, and arranges draw-in groove at the two ends of grip block 7, and draw-in groove has been embedded in wear rib 9, its
The cross section of middle draw-in groove is major arc shape, and the exposed part of wear rib 9 is less, when drillstock is by the clamping fastener of multiple arc surfaces 8
When, arc surface 8 and drillstock keep face to contact, and two wear ribs 9 respectively with drillstock linear contact lay so that drillstock and multiple grip blocks
Keep linear contact lay, face contact between 7 simultaneously；And it can be limited in the circumference of drillstock with the wear rib 9 of drillstock linear contact lay
Position, i.e., when drillstock adds man-hour to occur circumferentially rotating trend, wear rib 9 can slow down obstruction the movement tendency, to avoid drillstock
Circumferentially rotate, while wear rib 9 is using the good material of anti-wear performance, while drillstock is ensured by stable holding, moreover it is possible to
Enough extend the service life of wear rib 9, reduce use cost.
In the present embodiment, the lateral wall of the grip block 7 forms arc surface 8 along the radially outward depression of chuck 1, and
The two ends of grip block 7 have the draw-in groove of axis and the diameter parallel of chuck 1, and the cross section of the draw-in groove is in major arc shape, bullet
Property rubber bar is embedded in the draw-in groove.The drillstock of depth drill is integrally cylindrical, and on the lateral wall of grip block 7 arc surface is provided with
8 so that grip block 7 increases with the contact area of drillstock, and arranges draw-in groove at the two ends of grip block 7, and draw-in groove is embedded in flexible
The cross section of rubber bar, wherein draw-in groove is major arc shape, and the exposed part of elastic caoutchouc rod is less, when drillstock is by multiple circular arcs
During 8 clamping fastener of face, arc surface 8 and drillstock keep face contact, and two elastic caoutchouc rods respectively with drillstock linear contact lay so that brill
Linear contact lay, face is kept to contact between handle and multiple grip blocks 7 simultaneously；And can be in drillstock with the elastic caoutchouc rod of drillstock linear contact lay
It is carried out on circumferential spacing, i.e., when drillstock adds man-hour to occur circumferentially rotating trend, elastic caoutchouc rod can be by from figure
Active force produced by change or deformation recovery hinders the movement tendency to slow down, to avoid drillstock from circumferentially rotating, to protect
Card drillstock is by stable holding.
Preferably, the wear rib 9 by made by solid self lubricant material possesses protection function of surface kollag should have
There is good film forming ability, firm chemisorbed film or physical absorption film can be formed with friction surface, in drillstock surface attachment,
Prevent from being produced between drillstock and the relative motion surface of grip block 7 serious melting welding or the mutual transfer of metal, to protect outside drillstock
Wall is not frayed；Wherein solid self lubricant material can be silicon nitride, polytetrafluoroethylene (PTFE), polyformaldehyde, polyimides, poly- para hydroxybenzene
One kind in formic acid esters, sintering graphite and nylon, it is possible to decrease the processing cost of servo-actuated ring body.
Above-described specific embodiment, is entered to the purpose of this utility model, technical scheme and beneficial effect
One step is described in detail, be should be understood that and be the foregoing is only specific embodiment of the present utility model, is not used to limit
Fixed protection domain of the present utility model, all any modifications within spirit of the present utility model and principle, made, equivalent are replaced
Change, improve, should be included within protection domain of the present utility model.
Claims (4)
1. a kind of deep hole drill shank grinding clamp structure, including chuck（1）, in the chuck（1）Center offers through hole,
It is characterized in that：Along the chuck（1）Radial direction offer multiple grooves on its surface, inside opens up the grip slipper of cavity（3）
It is fixed in groove, in grip slipper（3）Inside it is provided with central shaft（4）, the central shaft（4）One end is rotatably arranged on cavity near institute
State on the side wall of through hole, central shaft（4）Other end activity is through the cavity and stretches out, in central shaft（4）Middle part is provided with
Thread segment（5）, the grip slipper（3）Take the shape of the letter U, and in grip slipper（3）Horizontal segment is provided with the opening connected with cavity, thread segment
（5）Local protrude from the opening, also including slide block（6）, the slide block（6）Bottom and the thread segment（5）Screw thread coordinates,
In grip slipper（3）Two vertical section madial walls be provided with chute（2）, slide block（6）Projection is equipped with two side, and it is described prominent
Rise and be slidably arranged in chute（2）It is interior, in the slide block（6）Side wall near the through hole is provided with grip block（7）, by turning
The extension of dynamic central shaft, makes grip block（7）Along chuck（1）Radial direction move reciprocatingly.
2. a kind of deep hole drill shank grinding clamp structure according to claim 1, it is characterised in that：The grip block
（7）Lateral wall along chuck（1）Radially outward depression form arc surface（8）, and in grip block（7）Two ends have axle
Line and chuck（1）Diameter parallel draw-in groove, the draw-in groove both ends open and its cross section are in major arc shape, in grip block（7）Bottom
Portion is hinged and is provided with block, and the block closes draw-in groove lower ending opening, columned wear rib（9）It is embedded in the draw-in groove,
When drillstock is clamped, arc surface（8）It is overall to be brought into close contact with the local of drillstock outer circle wall, wear rib（9）With drillstock excircle
Wall is tangent.
3. a kind of deep hole drill shank grinding clamp structure according to claim 2, it is characterised in that：The wear rib
（9）It is made up of solid self lubricant material.
4. a kind of deep hole drill shank grinding clamp structure according to claim 1, it is characterised in that：The grip block
（7）Lateral wall along chuck（1）Radially outward depression form arc surface（8）, and in grip block（7）Two ends have axle
Line and chuck（1）Diameter parallel draw-in groove, the cross section of the draw-in groove is in major arc shape, and elastic caoutchouc rod is embedded in the draw-in groove
It is interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621186250.XU CN206123441U (en) | 2016-10-28 | 2016-10-28 | Deep hole brill drillstock clamping structure for grinding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621186250.XU CN206123441U (en) | 2016-10-28 | 2016-10-28 | Deep hole brill drillstock clamping structure for grinding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206123441U true CN206123441U (en) | 2017-04-26 |
Family
ID=58578487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621186250.XU Expired - Fee Related CN206123441U (en) | 2016-10-28 | 2016-10-28 | Deep hole brill drillstock clamping structure for grinding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206123441U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107263261A (en) * | 2017-07-14 | 2017-10-20 | 武汉船用机械有限责任公司 | The grinding fixture and processing method of a kind of hydraulic motor arc push rod |
| CN112244433A (en) * | 2020-10-22 | 2021-01-22 | 广州翔建鞋业有限公司 | Leather shoe forming equipment for leather shoe processing |
-
2016
- 2016-10-28 CN CN201621186250.XU patent/CN206123441U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107263261A (en) * | 2017-07-14 | 2017-10-20 | 武汉船用机械有限责任公司 | The grinding fixture and processing method of a kind of hydraulic motor arc push rod |
| CN107263261B (en) * | 2017-07-14 | 2019-08-23 | 武汉船用机械有限责任公司 | A kind of grinding fixture and processing method of hydraulic motor arc push rod |
| CN112244433A (en) * | 2020-10-22 | 2021-01-22 | 广州翔建鞋业有限公司 | Leather shoe forming equipment for leather shoe processing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170426 Termination date: 20181028 |