CN201432131Y - Reversed cutting limit socket drill - Google Patents

Reversed cutting limit socket drill Download PDF

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Publication number
CN201432131Y
CN201432131Y CN2009200821953U CN200920082195U CN201432131Y CN 201432131 Y CN201432131 Y CN 201432131Y CN 2009200821953 U CN2009200821953 U CN 2009200821953U CN 200920082195 U CN200920082195 U CN 200920082195U CN 201432131 Y CN201432131 Y CN 201432131Y
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CN
China
Prior art keywords
counterbit
stop collar
axle sleeve
knife bar
swivel nut
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 - Lifetime
Application number
CN2009200821953U
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Chinese (zh)
Inventor
曹军
金晓波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chengdu Aircraft Industrial Group Co Ltd
Original Assignee
Chengdu Aircraft Industrial Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chengdu Aircraft Industrial Group Co Ltd filed Critical Chengdu Aircraft Industrial Group Co Ltd
Priority to CN2009200821953U priority Critical patent/CN201432131Y/en
Application granted granted Critical
Publication of CN201432131Y publication Critical patent/CN201432131Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a reversed cutting limit socket drill, which comprises a socket drill (1), a transmission pin (8), a limit device and a cutter arbor (9), and is characterized in that the limit device is arranged on the socket drill (1); the limit device comprises a steelwire retaining ring (2), a shaft sleeve (7), a stop collar (3), a thrust ball bearing (6), a position regulation threaded sleeve (4) and a clamp nut (5); the shaft sleeve (7), the stop collar (3) and the thrust ball bearing (6) are sequentially sleeved on the socket drill (1) from the outer thread end of the socketdrill (1); and the position regulation threaded sleeve (4) and the clamp nut (5) are sequentially connected to the socket drill (1) through threads. Before processing, operators can regulate the position of the position regulation threaded sleeve to control the limit position that the stop collar slide axially; when the cutting edge of the socket drill begins countersinking, the limit distance that the stop collar slides axially is equal to the depth of the countersinking; therefore, the depth of the countersinking is controlled efficiently; the operators have no need to observe with the eyesduring processing; and the processing efficiency of the operators is improved during batch processing.

Description

The spacing counter boring of a kind of reverse cutting bores
Technical field
The utility model relates to a kind of drill bit of processing counterbore.Especially relating to a kind of spacing counter boring of reverse cutting of processing counterbore bores.
Background technology
Adopting the riveted joint assembling and the assembling automobile that is spirally connected, when aircrafts etc. have the product of labyrinth, some rivet hole and screw hole can only be arranged in the structure of semiclosed or the approaching state that seals, manual pneumatic drill can't be implemented positive processing to the taper counterbore at the countersunk head position of rivet hole or screw hole, therefore need reverse machining taper counterbore, the counter boring that general reverse machining is used bores to be made up of counterbit and knife bar, counterbit and knife bar can be dismantled and make up, earlier knife bar is penetrated in the hole from opening wide face during use, at semiclosed end counterbit is inserted in knife bar again, pins counterbit and begin processing.The taper counterbore position of boring the hole with the general reverse cutting counter boring of pneumatic drill clamping adds man-hour, the workman is difficult for seeing clearly even does not observe processed position, be difficult to control taper counterbore depth dimensions, cause depth dimensions overproof easily, therefore, for avoiding overproof, the workman must be at the careful trial cut of each working position, when taper counterbore processing quantity is many, it is very low that workman's working (machining) efficiency seems.
Summary of the invention:
The technical problems to be solved in the utility model is to provide the high spacing counter boring of reverse cutting of a kind of working (machining) efficiency that does not need workman's trial cut just can control the depth dimensions of processing the taper counterbore to bore.
For solving the problems of the technologies described above, the utility model provides the spacing counter boring of a kind of reverse cutting to bore, by counterbit, trundle, stopping means and knife bar are formed, described counterbit one end is the taper blade, the other end is made one section external screw thread, the counterbit center has through hole, outer surface is made an annular groove behind the cutting edge, radially having pin hole, counterbit taper blade inwards, male end outwards is enclosed within on the knife bar, axially have segment length's groove on the knife bar, described trundle passes through pin hole, reach in the knife bar elongated slot knife bar radially is connected with counterbit, it is characterized in that: also be provided with stopping means on the counterbit, described stopping means is by elastic spring, axle sleeve, stop collar, thrust ball bearing, the position adjusts swivel nut and clamp nut is formed, axle sleeve, stop collar, thrust ball bearing is enclosed within on the counterbit from the counterbit male end successively, matched in clearance, described elastic spring places in the annular groove behind the counterbit cutting edge, block axle sleeve and do not deviate from counterbit, described stop collar is " recessed " shape, intracavity diameter is greater than the axle sleeve external diameter, stop collar is buckled on the axle sleeve, and counterbit cutting edge part also covered fully, described axle sleeve is a circular ring plate, axle sleeve is positioned at stop collar " recessed " shape inner chamber, block stop collar and do not deviate from counterbit, described thrust ball bearing one end face freely contacts with stop collar, the other end is adjusted swivel nut with the position and is contacted, described position adjustment swivel nut and clamp nut are successively by being threaded onto on the counterbit, when precession or revolve to give up the throne and put when adjusting swivel nut, the position is adjusted swivel nut and has been limited stop collar extreme position in axial sliding.
The utility model has following good effect than prior art.Before the processing, the operator can precession or is revolved to give up the throne to put and adjust swivel nut and control stop collar extreme position in axial sliding, when the counterbit blade begins spot-facing, stop collar and thrust ball bearing are deepened with the spot-facing degree of depth and are freely retreated, and when stop collar and thrust ball bearing contact position were adjusted swivel nut and can not be moved back again, the distance that retreats of sliding just equaled the spot-facing depth dimensions, therefore the spot-facing depth dimensions has just obtained effective control, the operator does not need eyes to observe, during batch machining, and workman's working (machining) efficiency height; Thrust ball bearing can make the stop collar that directly contacts with piece surface not with the knife bar rotation with axle sleeve in addition, thereby the not limited cover of protection surface to be machined scratches.
Description of drawings
Fig. 1 is the schematic diagram that the counter boring used of general reverse machining bores.
Fig. 2 needs oppositely cutting counter boring product processed structural representation.
Fig. 3 is that the spacing counter boring of a kind of reverse cutting of the present utility model bores schematic diagram.
Fig. 4 is the counterbit schematic diagram that the spacing counter boring of a kind of reverse cutting of the present utility model bores.
The specific embodiment
Below in conjunction with embodiment the utility model is further described.
Fig. 1 is the schematic diagram that the counter boring used of general reverse machining bores, the counter boring that general reverse machining is used bores to be made up of counterbit 21 and knife bar 9, counterbit and knife bar can be dismantled and make up, earlier the open wide face of knife bar from product structure 23 penetrated in the hole during use, semiclosed end at product structure 23 is inserted in knife bar 9 to counterbit 21 again, pins counterbit 21 and begins processing.The taper counterbore position of boring the hole with the general reverse cutting counter boring of pneumatic drill clamping adds man-hour, the workman is difficult for seeing clearly even does not observe processed position, be difficult to control taper counterbore depth dimensions, cause depth dimensions overproof easily, therefore, for avoiding overproof, the workman must be at the careful trial cut of each working position, when taper counterbore processing quantity is many, it is very low that workman's working (machining) efficiency seems.
Fig. 2 needs oppositely cutting counter boring product processed structural representation, adopting the riveted joint assembling and be spirally connected assembling automobile, aircraft etc. when having the product of labyrinth, some rivet hole and screw hole can only be arranged in the structure 23 of semiclosed or the approaching state that seals, the state of a kind of semiclosed or approaching sealing that product structure 23 comes to this, pneumatic drill can't be implemented positive processing to the taper counterbore at the countersunk head position of rivet hole or screw hole by hand, therefore needs reverse machining taper counterbore.
Fig. 3, Fig. 4 is that the spacing counter boring of a kind of reverse cutting of the present utility model bores schematic diagram, by counterbit 1, trundle 8, stopping means and knife bar 9 are formed, described counterbit 1 one ends are taper blades, the other end is made one section external screw thread, counterbit 1 center has through hole, outer surface is made an annular groove behind the cutting edge, radially having pin hole, the taper blade of counterbit 1 inwards, male end outwards is enclosed within on the knife bar 9, axially have segment length's groove on the knife bar 9, described trundle 8 passes through pin hole, reach in knife bar 9 elongated slots knife bar 9 radially is connected with counterbit 1, it is characterized in that: also be provided with stopping means on the counterbit 1, described stopping means is by elastic spring 2, axle sleeve 7, stop collar 3, thrust ball bearing 6, the position adjusts swivel nut 4 and clamp nut 5 is formed, axle sleeve 7, stop collar 3, thrust ball bearing 6 is enclosed within on the counterbit 1 from the male end of counterbit 1 successively, matched in clearance, described elastic spring 2 places in the annular groove behind counterbit 1 cutting edge, block axle sleeve 7 and do not deviate from counterbit 1, described stop collar 3 is " recessed " shape, intracavity diameter is greater than axle sleeve 7 external diameters, stop collar 3 is buckled on the axle sleeve 7, and counterbit 1 cutting edge part also covered fully, described axle sleeve 7 is circular ring plates, axle sleeve 7 is positioned at stop collar 3 " recessed " shape inner chamber, block stop collar 3 and do not deviate from counterbit 1, described thrust ball bearing 6 one end faces freely contact with stop collar 3, the other end is adjusted swivel nut 4 with the position and is contacted, described position adjustment swivel nut 4 and clamp nut 5 are successively by being threaded onto on the counterbit 1, when precession or revolve to give up the throne and put when adjusting swivel nut 4, the position is adjusted swivel nut 4 and has been limited stop collar 3 extreme position in axial sliding.It is in addition fastening locked that swivel nut 4 is adjusted in the 5 pairs of positions of clamp nut.Before the processing; the operator can unclamp clamp nut 5; precession or revolve is given up the throne to put and is adjusted swivel nut 4 and control stop collar 3 extreme position in axial sliding; add man-hour; earlier knife bar 9 is penetrated in the hole from opening wide face; at semiclosed end counterbit 1 is inserted in knife bar 9 again; extrinsic motive drives knife bar 9 rotations; knife bar 9 drives counterbit 1 rotation by the trundle 8 that is fixed on the counterbit 1; counterbit 1 blade begins spot-facing; stop collar 3 produced naturally with surface to be machined and contacted this moment; and axle sleeve 7 freely rotating between stop collar 3 and counterbit 1 isolated the moment of torsion transmission from counterbit 1; thrust ball bearing 6 is adjusted the moment of torsion transmission of having isolated between the swivel nut 4 from position adjustment swivel nut 4 at stop collar 3 and position; make the stop collar 3 that contacts with surface to be machined can be not along with rotation; relative with processed maintenance static; thereby the not limited cover 3 of protection surface to be machined work in-process scratches; stop collar 3 and thrust ball bearing 6 are deepened with the spot-facing degree of depth and are freely retreated; adjust the extreme position of swivel nut 4 controls and can not move back again the time when stop collar 3 and thrust ball bearing 6 in-positions at last; the depth dimensions of the counterbit 1 processing counterbore position that also reaches capacity; Jia Gong counterbore depth dimensions is effectively controlled like this, and effectively protects the part to be processed surface quality.
Above-described only is preferred embodiment of the present utility model.Should be understood that; for the person of ordinary skill of the art; under the prerequisite that does not break away from the principle of the invention; can also make some distortion and improvement; trundle 8 as described passes through pin hole, reaches in knife bar 9 elongated slots knife bar 9 radially is connected with counterbit 1, can adopt key to connect; comprise flat key, spline connected mode, change and the change undertaken by above-mentioned principle should be considered as belonging to protection scope of the present invention.

Claims (2)

1. one kind is oppositely cut spacing counter boring brill, by counterbit (1), trundle (8), stopping means and knife bar (9) are formed, described counterbit (1) one end is the taper blade, the other end is made one section external screw thread, counterbit (1) center has through hole, outer surface is made an annular groove behind the cutting edge, radially having pin hole, counterbit (1) taper blade inwards, male end outwards is enclosed within on the knife bar (9), axially have segment length's groove on the knife bar (9), described trundle (8) passes through pin hole, reach in knife bar (9) elongated slot knife bar (9) radially is connected with counterbit (1), it is characterized in that: counterbit also is provided with stopping means on (1), described stopping means is by elastic spring (2), axle sleeve (7), stop collar (3), thrust ball bearing (6), the position adjusts swivel nut (4) and clamp nut (5) is formed, axle sleeve (7), stop collar (3), thrust ball bearing (6) is enclosed within on the counterbit (1) from counterbit (1) male end successively, matched in clearance, described elastic spring (2) places in the annular groove behind counterbit (1) cutting edge, block axle sleeve (7) and do not deviate from counterbit (1), described stop collar (3) is " recessed " shape, intracavity diameter is greater than axle sleeve (7) external diameter, stop collar (3) is buckled on the axle sleeve (7), described axle sleeve (7) is a circular ring plate, axle sleeve (7) is positioned at stop collar (3) " recessed " shape inner chamber, block stop collar (3) and do not deviate from counterbit (1), described thrust ball bearing (6) one end faces freely contact with stop collar (3), the other end is adjusted swivel nut (4) with the position and is contacted, described position adjustment swivel nut (4) and clamp nut (5) are successively by being threaded onto on the counterbit (1), when precession or revolve to give up the throne and put when adjusting swivel nut (4), the position is adjusted swivel nut (4) and has been limited stop collar (3) extreme position in axial sliding.
2. the spacing counter boring of a kind of reverse cutting according to claim 1 bores, and it is characterized in that: described knife bar (9) radially is connected with counterbit (1) can adopt the key connection.
CN2009200821953U 2009-06-25 2009-06-25 Reversed cutting limit socket drill Expired - Lifetime CN201432131Y (en)

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Application Number Priority Date Filing Date Title
CN2009200821953U CN201432131Y (en) 2009-06-25 2009-06-25 Reversed cutting limit socket drill

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Application Number Priority Date Filing Date Title
CN2009200821953U CN201432131Y (en) 2009-06-25 2009-06-25 Reversed cutting limit socket drill

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CN201432131Y true CN201432131Y (en) 2010-03-31

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101804473A (en) * 2010-04-15 2010-08-18 吉林大学 Adjustable-depth counter boring device
CN101954500A (en) * 2010-08-13 2011-01-26 大连太平洋电子有限公司 Device and method for processing counterbore of circuit board
CN102825439A (en) * 2012-09-13 2012-12-19 沈阳飞机工业(集团)有限公司 Machining method for profile countersink drill
CN104308213A (en) * 2014-10-16 2015-01-28 贵州航天红光机械制造有限公司 Method for machining counter bore in reverse side
CN107363306A (en) * 2017-08-14 2017-11-21 中车唐山机车车辆有限公司 Reversible countersink
CN107812987A (en) * 2016-09-14 2018-03-20 中国石油天然气股份有限公司 Machining device for tube plates and baffle plates with different chamfer sizes
CN107838481A (en) * 2017-11-12 2018-03-27 江苏瑞尔隆鼎实业有限公司 A kind of eccentric anti-spot-facing cutter
CN109926628A (en) * 2019-04-15 2019-06-25 江苏飞达钻头股份有限公司 A kind of adjustable positioning hexagonal handle brill
CN111408800A (en) * 2020-03-10 2020-07-14 长沙五七一二飞机工业有限责任公司 Cutting device for coordinated machining of connecting holes

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101804473A (en) * 2010-04-15 2010-08-18 吉林大学 Adjustable-depth counter boring device
CN101954500A (en) * 2010-08-13 2011-01-26 大连太平洋电子有限公司 Device and method for processing counterbore of circuit board
CN101954500B (en) * 2010-08-13 2012-07-11 大连太平洋电子有限公司 Device and method for processing counterbore of circuit board
CN102825439A (en) * 2012-09-13 2012-12-19 沈阳飞机工业(集团)有限公司 Machining method for profile countersink drill
CN102825439B (en) * 2012-09-13 2015-01-21 沈阳飞机工业(集团)有限公司 Machining method for profile countersink drill
CN104308213A (en) * 2014-10-16 2015-01-28 贵州航天红光机械制造有限公司 Method for machining counter bore in reverse side
CN107812987A (en) * 2016-09-14 2018-03-20 中国石油天然气股份有限公司 Machining device for tube plates and baffle plates with different chamfer sizes
CN107363306A (en) * 2017-08-14 2017-11-21 中车唐山机车车辆有限公司 Reversible countersink
CN107363306B (en) * 2017-08-14 2019-05-07 中车唐山机车车辆有限公司 Reversible countersink
CN107838481A (en) * 2017-11-12 2018-03-27 江苏瑞尔隆鼎实业有限公司 A kind of eccentric anti-spot-facing cutter
CN109926628A (en) * 2019-04-15 2019-06-25 江苏飞达钻头股份有限公司 A kind of adjustable positioning hexagonal handle brill
CN111408800A (en) * 2020-03-10 2020-07-14 长沙五七一二飞机工业有限责任公司 Cutting device for coordinated machining of connecting holes

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GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20100331

CX01 Expiry of patent term