CN106624133A - Locking tool for processing impeller of hydrodynamic retarder of heavily loaded truck - Google Patents

Locking tool for processing impeller of hydrodynamic retarder of heavily loaded truck Download PDF

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Publication number
CN106624133A
CN106624133A CN201611081692.2A CN201611081692A CN106624133A CN 106624133 A CN106624133 A CN 106624133A CN 201611081692 A CN201611081692 A CN 201611081692A CN 106624133 A CN106624133 A CN 106624133A
Authority
CN
China
Prior art keywords
tightening
expansion sleeve
workpiece
tightening piece
bore
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.)
Pending
Application number
CN201611081692.2A
Other languages
Chinese (zh)
Inventor
吴华锋
宋智能
朱亮亮
卢坤林
刘金华
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.)
Jiangsu Tangchen Automobile Parts Co Ltd
Original Assignee
Jiangsu Tangchen Automobile Parts 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 Jiangsu Tangchen Automobile Parts Co Ltd filed Critical Jiangsu Tangchen Automobile Parts Co Ltd
Priority to CN201611081692.2A priority Critical patent/CN106624133A/en
Publication of CN106624133A publication Critical patent/CN106624133A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B31/00Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/40Expansion mandrels
    • B23B31/404Gripping the work or tool by jaws moving radially controlled by conical surfaces
    • B23B31/4046Details of the jaws
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D41/00Broaching machines or broaching devices characterised only by constructional features of particular parts
    • B23D41/06Broaching machines or broaching devices characterised only by constructional features of particular parts of devices for feeding, clamping, or ejecting workpieces

Abstract

The invention relates to a locking tool for processing an impeller of a hydrodynamic retarder of a heavily loaded truck. The locking tool comprises a tightening cover and a locking cover, wherein the tightening cover is provided with a groove for mounting a workpiece and a through hole where a spiral broach passes through; the tightening cover comprises a cylindrical tightening cover main body, a plurality of conically distributed tightening blocks are arranged on one side of the mounting piece of the tightening cover, a gap is reserved between two adjacent tightening blocks and the gap extends to a position on one side, far from the workpiece in the middle part of the tightening cover main body; the locking cover is mounted on the outer side of the tightening cover, and meanwhile, conical tightening holes corresponding to the tightening blocks are formed in the end portion of the locking cover, and the apertures of the tightening holes are smaller than the apertures of cones formed by the tightening blocks in rolling out states but greater than or equal to the apertures of cones formed by the tightening blocks in tightening states. The locking tool provided by the invention has the advantage that the locking tool can clamp the workpiece without any direct connecting pieces, and is convenient to mount and detach.

Description

A kind of truck Retarder Impeller Machining locking fixture
Technical field
The present invention relates to auto parts and components manufacture field, more particularly to a kind of truck Retarder Impeller Machining use Locking fixture.
Background technology
Retarder hinders speed variator also known as fluid power.Automobile is at lower long slope abrupt slope using air pressure or hydraulic braking, although Good braking effect can be received, but for more than nine meters larger loaded vehicle of loading capacity, is imitated using air pressure or hydraulic braking Fruit is limited, and brake assembly easily produces locking decline.Therefore, the load-carrying car of more than nine meters of national regulation, 12 Load truck more than rice must all assemble retarder device.The stator of the Retarder is again retarder housing, with change Fast device rear end or vehicle frame connect, and rotor is connected by hollow axle with power transmission shaft, and blade is cast out on rotor and stator.During work, Manipulation by means of control valve applies pressure to oil sump, makes the work intracavity that working solution is filled between rotor and stator.Rotor revolves A torque is acted on to stator by working solution when turning, and the countertorque of stator becomes the braking moment of rotor, its value depends on In the liquid measure and pressure (depending on regarding the severity of braking gear of control valve setting) of work intracavity, and the rotating speed of rotor.Automobile is moved The friction of working solution can be consumed in and heat energy is converted to the impact of stator, raise work liquid temp.Working solution is introduced into Circulate in heat exchanger, heat is passed to into cooling water, then shed by engine-cooling system.In the vapour using hydraulic power Car, can save oil sump, oil pump, heat exchanger (size need increase) and using the working solution of hydraulic power, thus Retarder In being used for hydraulic power automobile.
At present, for the impeller of the hydraulic buffer on truck is during processing, for the center of impeller 1 Helical tooth 2, as shown in figure 1, during being processed, existing technique harness is being carried out when being processed to product When fixed, need to fix product by modes such as bolts, install, dismantle it is all cumbersome.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of truck Retarder Impeller Machining locking fixture, Quickly removing and installing for workpiece can be realized on the basis of locking workpiece is ensured.
To solve above-mentioned technical problem, the technical scheme is that:A kind of truck Retarder Impeller Machining With locking fixture, its innovative point is:Including
There is the through hole that the groove and an appearance spiral broach of an appearance workpiece installation are passed through, institute in one expansion sleeve, the expansion sleeve Expansion sleeve is stated including a cylindric expansion sleeve main body, the side for being located at installation workpiece in expansion sleeve main body has several in coniform The tightening piece of distribution, between adjacent tightening piece gap is left, and on the gap and expansion sleeve groove and the appearance spiral shell that workpiece is installed is held The through hole that rotation broaching tool is passed through is connected, and the gap extends to the middle part and the remote position from workpiece side of expansion sleeve main body, The bore of that section in workpiece insertion expansion sleeve is less than the bore of tightening piece spreading state low groove, more than or equal to tightening piece The bore of tightening state low groove;
One lock sleeve, the locking is sleeved on the outside of expansion sleeve, while having in the end of lock sleeve corresponding with tightening piece It is coniform tighten up hole, and this tightens up the bore of the bore less than the circular cone formed under tightening piece spreading state in hole, more than or Equal to the bore of the circular cone formed under tightening piece tightening state.
Further, also there is a limited block for stretching out on the tightening piece, and after expansion sleeve is tightened up, it is all of Limited block is annularly distributed.
Further, it is located in expansion sleeve main body and is additionally provided with a detent on the outside of tightening piece side, while There is corresponding positioning convex in the inwall of lock sleeve.
It is an advantage of the current invention that:In the present invention, using the cooperation between expansion sleeve and lock sleeve, operationally, work Part drive under the pulling function of spiral broach expansion sleeve to lock sleeve compress, now due to tightening up bore open than spreading after rise The bore of tight block is little, therefore the gap between each tightening piece can be gradually reduced, so as to by work piece, it is ensured that processing it is suitable Profit is carried out, and in pickup, spiral broach is applied to the power of workpiece and disappears, and expansion sleeve is under the elastic reaction of itself away from lock Tight set, each tightening piece spreading again, now can unloading workpiece, whole process to workpiece with connector without the need for directly be locked Tightly, it is convenient to install and dismounting.
Limited block is also set up on tightening piece, using limited block to the relative position in the axial direction between expansion sleeve and lock sleeve Put and limited, it is to avoid expansion sleeve is snapped in lock sleeve and cannot smoothly ejected.
In addition, arrange detent on expansion sleeve, while arrange positioning convex on lock sleeve, so as to can be to expansion sleeve Relative position radially between lock sleeve is limited, it is to avoid occur the phenomenon of not transfer between the two.
Description of the drawings
With reference to the accompanying drawings and detailed description the present invention is further detailed explanation.
Fig. 1 is the schematic diagram of retarder impeller.
Fig. 2 is the schematic diagram of the truck Retarder Impeller Machining locking fixture of the present invention.
Fig. 3 is the schematic diagram of expansion sleeve in the present invention.
Fig. 4 is the side view of expansion sleeve in the present invention.
Specific embodiment
The following examples can make professional and technical personnel that the present invention is more fully understood, but not therefore by this It is bright to be limited among described scope of embodiments.
A kind of truck Retarder Impeller Machining locking fixture as shown in figs 2-4, including
One expansion sleeve 13, as shown in figure 3, having one to hold the appearance spiral broach of groove 13 and that workpiece is installed in expansion sleeve 13 4 through holes 14 for passing through, expansion sleeve 13 includes a cylindric expansion sleeve main body 15, is located in expansion sleeve main body 15 and installs the one of workpiece Side has several tightening piece 16 in coniform distribution, and between adjacent tightening piece 16 gap 17 is left, the gap 17 and tensioner The through hole 14 that the groove 13 and appearance spiral broach 4 that appearance workpiece is installed on set 13 is passed through is connected, and the gap 17 extends to tensioner The middle part and the remote position from workpiece side of set main body 15, and the end in the gap 17 is in circular hole, while in expansion sleeve master The bore on the inwall of body 15 with a corresponding annular recess 18, that section in workpiece insertion expansion sleeve 18 is less than tightening piece The bore of 16 spreading state low grooves, more than or equal to the bore of the tightening state low groove of tightening piece 16,
One lock sleeve 14, the lock sleeve 14 is mounted in the outside of expansion sleeve, while having and tightening piece 16 in the end of lock sleeve 14 It is corresponding it is coniform tighten up hole, and this tightens up the mouth of the bore less than the circular cone formed under the spreading state of tightening piece 16 in hole Footpath, more than or equal to the bore of the circular cone formed under the tightening state of tightening piece 16, rotating disk 15 is fixed on the outside of lock sleeve 14 And lock sleeve 14, expansion sleeve 13 can be driven to rotate, there is tooth-shape structure in the circumferential surface of rotating disk 15.Setting by latch assembly Put, using the cooperation between expansion sleeve 13 and lock sleeve 14, operationally, workpiece drives under the pulling function of spiral broach 4 Expansion sleeve 13 to lock sleeve 14 is compressed, now little than the bore of the tightening piece 16 after spreading due to tightening up bore open, therefore respectively Gap between individual tightening piece 16 can be gradually reduced, so as to by work piece, it is ensured that processing is smoothed out, and in pickup, Spiral broach 4 is applied to the power of workpiece and disappears, expansion sleeve 13 under the elastic reaction of itself away from lock sleeve 14, each tensioner The spreading again of block 16, now can unloading workpiece, whole process without the need for directly be locked to workpiece with connector, it is convenient install and Dismounting.
Also there is a limited block 20 for stretching out on tightening piece 16, and after expansion sleeve 13 is tightened up, it is all of spacing Block 20 is annularly distributed.Limited block 20 is set on tightening piece 16, using limited block 20 between expansion sleeve 13 and lock sleeve 14 Axial direction on relative position limited, it is to avoid expansion sleeve 13 snapped in and cannot smoothly eject in lock sleeve 14.
It is located in expansion sleeve main body 15 and is additionally provided with a detent 19 on the outside of the side of tightening piece 16, while The inwall of lock sleeve 14 has corresponding positioning convex.Detent 19 is set on expansion sleeve 13, while in lock sleeve Positioning convex is set on 14, so as to limit the relative position radially between expansion sleeve 13 and lock sleeve 14, is kept away Exempt from the phenomenon for occurring not transfer between the two.
It should be understood by those skilled in the art that, the present invention is not restricted to the described embodiments, above-described embodiment and explanation Merely illustrating the principles of the invention described in book, without departing from the spirit and scope of the present invention, the present invention also has Various changes and modifications, these changes and improvements are both fallen within scope of the claimed invention.The claimed scope of the invention By appending claims and its equivalent thereof.

Claims (3)

1. a kind of truck Retarder Impeller Machining locking fixture, it is characterised in that:Including
There is the through hole that the groove and an appearance spiral broach of an appearance workpiece installation are passed through, institute in one expansion sleeve, the expansion sleeve Expansion sleeve is stated including a cylindric expansion sleeve main body, the side for being located at installation workpiece in expansion sleeve main body has several in coniform The tightening piece of distribution, between adjacent tightening piece gap is left, and on the gap and expansion sleeve groove and the appearance spiral shell that workpiece is installed is held The through hole that rotation broaching tool is passed through is connected, and the gap extends to the middle part and the remote position from workpiece side of expansion sleeve main body, The bore of that section in workpiece insertion expansion sleeve is less than the bore of tightening piece spreading state low groove, more than or equal to tightening piece The bore of tightening state low groove;
One lock sleeve, the locking is mounted in the outside of expansion sleeve, while having in the end of lock sleeve corresponding with tightening piece It is coniform to tighten up hole, and this tightens up the bore of the bore less than the circular cone formed under tightening piece spreading state in hole, more than or wait The bore of the circular cone formed under tightening piece tightening state.
2. truck Retarder Impeller Machining locking fixture according to claim 1, it is characterised in that:It is described Also there is a limited block for stretching out on tightening piece, and after expansion sleeve is tightened up, all of limited block is annularly distributed.
3. truck Retarder Impeller Machining locking fixture according to claim 1, it is characterised in that:Rising Tight set main body is located at and is additionally provided with a detent on the outside of tightening piece side, while the inwall in lock sleeve has therewith Corresponding positioning convex.
CN201611081692.2A 2016-11-30 2016-11-30 Locking tool for processing impeller of hydrodynamic retarder of heavily loaded truck Pending CN106624133A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611081692.2A CN106624133A (en) 2016-11-30 2016-11-30 Locking tool for processing impeller of hydrodynamic retarder of heavily loaded truck

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611081692.2A CN106624133A (en) 2016-11-30 2016-11-30 Locking tool for processing impeller of hydrodynamic retarder of heavily loaded truck

Publications (1)

Publication Number Publication Date
CN106624133A true CN106624133A (en) 2017-05-10

Family

ID=58813582

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611081692.2A Pending CN106624133A (en) 2016-11-30 2016-11-30 Locking tool for processing impeller of hydrodynamic retarder of heavily loaded truck

Country Status (1)

Country Link
CN (1) CN106624133A (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07132403A (en) * 1993-02-08 1995-05-23 Xu Xian Hua Mandrel with internal spline for processing workpiece
CN201693379U (en) * 2010-01-12 2011-01-05 中车集团四川丹齿零部件有限公司 Single keyway broaching tool
WO2013037990A1 (en) * 2011-09-16 2013-03-21 Schaublin Sa Expanding arbor
CN202922288U (en) * 2012-12-04 2013-05-08 缙云县高新机械制造有限公司 Workpiece clamp device for broaching internal helical splines
CN103894641A (en) * 2014-04-16 2014-07-02 江西江铃底盘股份有限公司 Outer-ejection-type inner expansion clamping sleeve
CN104044003A (en) * 2014-06-16 2014-09-17 山东鲁南机床有限公司 Technological spindle and technique used for processing symmetric double bonds in hub of plate part
CN204221417U (en) * 2014-10-29 2015-03-25 浙江双环传动机械股份有限公司 A kind of special tooling of small eccentricity band spline bent axle
CN206241357U (en) * 2016-11-30 2017-06-13 江苏汤臣汽车零部件有限公司 A kind of truck Retarder Impeller Machining locking fixture

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07132403A (en) * 1993-02-08 1995-05-23 Xu Xian Hua Mandrel with internal spline for processing workpiece
CN201693379U (en) * 2010-01-12 2011-01-05 中车集团四川丹齿零部件有限公司 Single keyway broaching tool
WO2013037990A1 (en) * 2011-09-16 2013-03-21 Schaublin Sa Expanding arbor
CN202922288U (en) * 2012-12-04 2013-05-08 缙云县高新机械制造有限公司 Workpiece clamp device for broaching internal helical splines
CN103894641A (en) * 2014-04-16 2014-07-02 江西江铃底盘股份有限公司 Outer-ejection-type inner expansion clamping sleeve
CN104044003A (en) * 2014-06-16 2014-09-17 山东鲁南机床有限公司 Technological spindle and technique used for processing symmetric double bonds in hub of plate part
CN204221417U (en) * 2014-10-29 2015-03-25 浙江双环传动机械股份有限公司 A kind of special tooling of small eccentricity band spline bent axle
CN206241357U (en) * 2016-11-30 2017-06-13 江苏汤臣汽车零部件有限公司 A kind of truck Retarder Impeller Machining locking fixture

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Application publication date: 20170510

RJ01 Rejection of invention patent application after publication