CN206154106U - Deep hole bores drillstock polishing and uses clamping disk - Google Patents

Abstract

The utility model discloses a deep hole bores drillstock polishing and uses clamping disk, 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

Deep hole drill shank polishing clamping disk

Technical field

The utility model is related to drill bit manufacture field, specifically refers to deep hole drill shank polishing clamping disk.

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, and the drillstock (canned paragraph) of depth drill is 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 deep hole drill shank polishing clamping disk, stability of the drillstock in polishing Can, and then improve the machining accuracy purpose of depth drill.

The purpose of this utility model is achieved through the following technical solutions：

Deep hole drill shank polishing clamping disk, including chuck, offer through hole, along the chuck at the chuck hub Radial direction offer multiple grooves on its surface, inside opens up the grip slipper of cavity and is fixed in groove, is provided with grip slipper Central shaft, described central shaft one end is rotatably arranged on cavity on the side wall of the through hole, and central shaft other end activity runs 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 on grip slipper horizontal segment Be provided with the opening connected with cavity, the local of thread segment protrudes from the opening, also including slide block, the slider bottom with it is described Thread segment screw thread coordinates, and on two vertical section madial walls of grip slipper chute is provided with, and projection is equipped with slide block two side, 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, by rotating The extension of central shaft, makes grip block move reciprocatingly along the radial direction of chuck；Oiling passage is provided with the grip slipper, The lateral wall of the grip slipper is provided with cannelure, cannelure and oiling channel connection, and sealing ring seals the cannelure, institute State the local of thread segment and the oiling channel contact.

During work, chuck is fixed on machining tool, the drillstock of depth drill is placed in into multiple grip block institutes through through hole In the clamping zone of composition, now, rotate the extension of multiple central shafts so that slide block by the screw thread with thread segment coordinate come The movement in chuck radially is realized, i.e. the side wall of grip block is brought into close contact with drillstock, in the portion to be processed of drillstock grinding is located at When device is contacted, drillstock can produce the bounce radially or on axial direction, and the applied stress for producing is transferred directly to slide block and folder Hold on seat, slider bottom coordinates with thread segment screw thread in the present invention, while the projection that slide block both sides are arranged is placed in chute, that is, bores The stress that handle radially or on axial direction is produced because of bounce is offset by the reaction force that chute and thread segment are produced, and then is avoided Adhere to that block or slide block are produced to rock, and grip slipper is fixed on chuck, that is, ensure that the drillstock of depth drill by stabilization clamp Hold, to improve drillstock in the precision for adding man-hour.Further, drillstock plus man-hour can produce part metals chip, and part gold Category chip can be spilt to the contact area of thread segment and slide block, and then causes the interim card between slide block and central shaft, affect to bore The clamping dynamics of handle, is that this inventor arranges oiling passage inside grip slipper, and is opened up on the lateral wall of grip slipper and note The cannelure of oily channel connection, the cannelure is sealed by sealing ring, and lubricant, Ran Houzai are injected in oiling passage using front Cannelure is sealed by sealing ring, will oiling passage be isolated from the outside so that slide block move when, the local of thread segment is all the time With the lubricant contact in oiling passage, it is ensured that the fitment stability between slide block and thread segment, it is to avoid lead because chip is entered Cause the mobile failure of slide block or grip block.

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 thread segment bottom is wrapped up in circular arc, and the oiling passage cross section of the oiling passage.As It is preferred that, the cross section of oiling passage is set to into circular arc so that the oiling passage in grip slipper is to the full extent by screw thread Section parcel, that is, increase the contact area between thread segment and lubricant, to improve the stability of central axis, reduce slide block or It is the phenomenon of grip block interim card.

Oil filler point is provided with the sealing ring, and plug is provided with oil filler point.Preferably, to maintain oiling passage The dosage of in-lubricant is provided with oil filler point, the lubricant in oiling passage to realize maximum lubricant effect on sealing ring During reduction, by opening plug, new lubricant is injected into oiling passage by oil filler point, to ensure that the dosage of lubricant begins A stable level is maintained eventually.

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 shown in Fig. 1～Fig. 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；In the folder Hold in seat 3 and be provided with oiling passage, cannelure, cannelure and oiling channel connection are provided with the lateral wall of the grip slipper 3, Sealing ring seals the cannelure, the local of the thread segment 5 and the oiling channel contact.

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..Further, drillstock is adding man-hour to produce Part metals chip, and part metals chip can be spilt to the contact area of thread segment 5 and slide block 6, so cause slide block 6 with Interim card between central shaft 4, affects the clamping dynamics of drillstock, is that this inventor arranges oiling passage inside grip slipper 3, and The cannelure with oiling channel connection is opened up on the lateral wall of grip slipper 3, the cannelure is sealed by sealing ring, using front in note Injection lubricant in oily passage, then by sealing ring seals cannelure again, will oiling passage be isolated from the outside so that cunning When block 6 is moved, the local of thread segment 5 all the time with oiling passage in lubricant contact, it is ensured that between slide block 6 and thread segment 5 Fitment stability, it is to avoid cause the mobile failure of slide block 6 or grip block 7 because chip is entered.

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.

Preferably, the cross section of oiling passage is set to into circular arc so that the oiling passage in grip slipper 3 is in maximum Thread segment 5 is wrapped up in degree, that is, increases the contact area between thread segment 5 and lubricant, to improve the steady of the rotation of central shaft 4 It is qualitative, reduce the phenomenon of slide block 6 or the interim card of grip block 7.

Preferably, for maintain oiling passage in-lubricant dosage with realize maximum lubricant effect, on sealing ring Oil filler point is provided with, when the lubricant in oiling passage is reduced, by opening plug, is injected into oiling passage by oil filler point New lubricant, to ensure that the dosage of lubricant maintains all the time a stable level.

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 (5)

1. deep hole drill shank polishing clamping disk, including chuck (1), offers through hole, its feature in the chuck (1) center It is：Radial direction along the chuck (1) offers multiple grooves on its surface, and inside opens up the grip slipper (3) of cavity and is fixed on In groove, central shaft (4) is provided with grip slipper (3), described central shaft (4) one end is rotatably arranged on cavity near the through hole Side wall on, the activity of central shaft (4) other end is provided with thread segment through the cavity and stretching out at central shaft (4) middle part (5), the grip slipper (3) takes the shape of the letter U, and the opening connected with cavity is provided with grip slipper (3) horizontal segment, thread segment (5) Local protrudes from the opening, and also including slide block (6), slide block (6) bottom coordinates with the thread segment (5) screw thread, in folder Two vertical section madial walls for holding seat (3) are provided with chute (2), and projection is equipped with slide block (6) two side, and the projection is slided It is dynamic to be arranged in chute (2), grip block (7) is provided with the side wall of the through hole in the slide block (6), by rotation The extension of heart axle, makes grip block (7) move reciprocatingly along the radial direction of chuck (1)；Oiling is provided with the grip slipper (3) Passage, is provided with cannelure on the lateral wall of the grip slipper (3), cannelure and oiling channel connection, and sealing ring is by the ring Shape groove is sealed, local and the oiling channel contact of the thread segment (5).

2. deep hole drill shank polishing clamping disk according to claim 1, it is characterised in that：Outside the grip block (7) Side wall forms arc surface (8) along the radially outward depression of chuck (1), and has axis with card at the two ends of grip block (7) The draw-in groove of the diameter parallel of disk (1), the draw-in groove both ends open and its cross section are in major arc shape, are hinged in grip block (7) bottom Block is provided with, the block closes draw-in groove lower ending opening, and columned wear rib (9) is embedded in the draw-in groove, drillstock quilt During clamping, arc surface (8) is integrally brought into close contact with the local of drillstock outer circle wall, and wear rib (9) is tangent with drillstock outer circle wall.

3. deep hole drill shank polishing clamping disk according to claim 2, it is characterised in that：The wear rib (9) is by solid Body self-lubricating material is made.

4. deep hole drill shank polishing clamping disk according to claim 1, it is characterised in that：The oiling passage it is transversal The thread segment (5) bottom is wrapped up in circular arc, and the oiling passage in face.

5. deep hole drill shank polishing clamping disk according to claim 1, it is characterised in that：It is provided with the sealing ring Oil filler point, and plug is provided with oil filler point.