CN106736315A - A kind of truck Retarder Impeller Machining method - Google Patents
A kind of truck Retarder Impeller Machining method Download PDFInfo
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- CN106736315A CN106736315A CN201611081695.6A CN201611081695A CN106736315A CN 106736315 A CN106736315 A CN 106736315A CN 201611081695 A CN201611081695 A CN 201611081695A CN 106736315 A CN106736315 A CN 106736315A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/02—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass turbine or like blades from one piece
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Abstract
The present invention relates to a kind of truck Retarder Impeller Machining method, impeller workpiece to be processed is fitted into special organisation of working, reassemble spiral broach, after the completion for the treatment of that workpiece is assembled with spiral broach, start processing, pull bar is pulled from motor and drives spiral broach to be moved along a straight line to the side away from workpiece, while spiral broach is moved, rotary components are started working, and drive turntable rotation, so that drive workpiece to be rotated in a clockwise direction, after machining, workpiece is removed from organisation of working, the processing of the helical tooth of impeller is completed.The advantage of the invention is that：Coordinate special organisation of working, and columns, size, the number of teeth of the processing tooth to spiral broach, and the speed and the rotary speed of workpiece these parameters of spiral broach during processing carry out rational matching design, so as to can disposably process the helical tooth of impeller, and ensure the machining accuracy of helical tooth, it is to avoid there is deviation and cause product rejection or secondary operation.
Description
Technical field
The present invention relates to auto parts and components manufacture field, more particularly to a kind of truck Retarder Impeller Machining side
Method.
Background technology
Retarder hinders speed variator also known as fluid power.Automobile uses air pressure or hydraulic braking at lower long slope abrupt slope, 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 to fail.Therefore, load-carrying car, 12 of more than nine meters of national regulation
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 are connected, and rotor is connected by hollow shaft 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 in the working chamber that working solution filled between people's 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 in working chamber liquid measure and pressure (depending on control valve set up severity of braking gear depending on), and rotor rotating speed.Automobile is moved
The friction of working solution can be consumed in and heat energy is converted to the impact of stator, raise working solution temperature.Working solution is introduced into
Circulated in heat exchanger, contact the heat to cooling water, then shed by engine-cooling system.Using hydraulic power
Automobile, can save oil sump, oil pump, heat exchanger (size needs to increase) and utilize the working solution of hydraulic power, thus hydrodynamic retarding
Device is used in hydraulic power automobile.
At present, for the Retarder on truck impeller during processing, for the center of impeller 1
Helical tooth 2, as shown in figure 1, during being processed, existing processing method, due to the equipment processed and processed
The influence of parameter in journey, is easily caused the helical tooth 2 for processing and there is deviation, causes product rejection or needs to carry out secondary adding
Work, very trouble.
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 method, Neng Goujia
The precision of the helical tooth of the impeller that work goes out, it is to avoid deviation occur and cause product rejection or secondary operation.
In order to solve the above technical problems, the technical scheme is that：A kind of truck Retarder Impeller Machining
Method, its innovative point is：The step of processing method is：
a）Workpiece is assembled：First, impeller workpiece to be processed is fitted into special organisation of working, the organisation of working includes one
Processing frame, processing assembly is provided with processing frame, and the processing assembly includes
One broaching tool component, the broaching tool component includes a spiral broach, in the upper end of processing frame there is an appearance spiral broach to exist
The reciprocating groove of horizontal direction, at the same processing frame one end have one appearance spiral broach pass through and with the groove phase
The through hole of connection, the other end of processing frame have one stretch into it is in the groove and by quick despatch structure and spiral broach
Connected pull bar, the quick despatch structure is specially：The end of the one end being connected with pull bar in spiral broach has a pair pairs
Claim the rectangle draw-in groove for setting, while there is a groove for holding the insertion of the spiral broach end in one end of pull bar, in the upper end of pull bar
With a location hole being connected with the groove, the spiral broach is stretched into after the groove of tie rod end by a positioning block from fixed
Position hole is inserted into and blocks fixed, the square with spiral broach in the lower end of locating piece after the rectangle draw-in groove on spiral broach
Corresponding inverted U-shaped groove at shape draw-in groove, the pull bar can be driven by motor and be carried out back and forth along the bearing of trend of groove
Motion；
One latch assembly, the locking unit is arranged on one end away from pull bar in processing frame, including same successively from inside to outside
Expansion sleeve, lock sleeve and rotating disk that axle is set, while there is the through hole for holding lock sleeve insertion in the end of processing frame, it is described to rise
There is the groove that an appearance workpiece is installed and the through hole that an appearance spiral broach is passed through, the expansion sleeve includes that one is cylindric in tight set
Expansion sleeve main body, the side for being located at installation workpiece in expansion sleeve main body has several tightening pieces in coniform distribution, adjacent
Gap is left between tightening piece, the through hole that the gap passes through with the groove and appearance spiral broach that hold workpiece installation on expansion sleeve is connected
It is logical, and the gap extends to the middle part and the remote position from workpiece side of expansion sleeve main body, workpiece inserts that in expansion sleeve
One section of bore is less than the bore of the groove under tightening piece spreading state, more than or equal to the groove under tightening piece tightening state
Bore, at the same the end of lock sleeve have it is corresponding with tightening piece it is coniform tighten up hole, and the bore for tightening up hole is less than
The bore of the circular cone formed under tightening piece spreading state, more than or equal to the mouth of the circular cone formed under tightening piece tightening state
Footpath, the rotating disk is fixed on the outside of lock sleeve and lock sleeve, expansion sleeve can be driven to rotate, and has tooth in the circumferential surface of rotating disk
Shape structure；
One rotary components, the rotary unit includes that one is arranged on the rotary teeth that processing frame is located at the end of latch assembly side
Wheel group, the swing pinion group is collectively constituted by several to intermeshing swing pinion, and positioned at the swing pinion of input end
Driven by motor and rotated, swing pinion and the rotating disk positioned at output are intermeshed；
One is arranged on support unit of the processing frame near latch assembly side, and the support unit is arranged on processing machine including one
The support base of frame side, has a pair guide rails along the extension of the spiral broach direction of motion, on guide rail in the upper end of support base
With the bracket being slidably matched therewith, the upper end of the bracket is provided with a tray, has one to hold spiral in the upper end of tray and draws
The arc groove that knife side is placed, is also equipped with a pair symmetrically arranged cards that clamping is carried out to spiral broach on the inwall of tray
Pearl, while the side in spiral broach has an annular slot coordinated with card bead, also has a pair on tray and is horizontally disposed with
Appearance card bead activity cylinder shape groove, the card bead by back-moving spring be arranged on cylinder shape groove in；
The end of impeller workpiece to be processed is embedded in the groove of expansion sleeve, the assembling of workpiece is completed, the workpiece is being processed
After helical tooth, the maximum gauge of its inwall is 48 ± 0.25mm, and minimum diameter is 42.3 ± 0.059mm, workpiece internal screw tooth
Rotation direction is dextrorotation, and helical angle is 39 ° 20 ' 13 ", the gradient on each revolution of slope is 178.42；
b）Broaching tool is assembled：The size requirement of the helical tooth of the impeller processed as needed, takes the spiral broach that a correspondence is required, should
Equidistant on spiral broach that 97 row processing tooth is distributed with, the number of teeth of each column processing tooth is 12, and the processing tooth of workpiece is contacted at first
A diameter of 42.30mm, the diameter of processing tooth thereafter gradually increases, and the lifting capacity of each column tooth is 0.07mm, by spiral broach
One end from the through hole of impeller through rear and stretch to the upper end of groove in a processing frame, then, pull bar is driving electricity
The position of spiral broach is moved under machine driving effect, the end of spiral broach is stretched into the groove of pull bar until spiral broach
On rectangle draw-in groove be moved at the location hole of pull bar, then be embedded in for locating piece by the upper end of the location hole from pull bar, using positioning
Block blocks spiral broach, then the other end of spiral broach is embedded in the groove on tray, and blocks spiral broach using card bead
On annular slot, complete spiral broach assembling；
c）Work pieces process：After the completion for the treatment of that workpiece is assembled with spiral broach, start processing, pull bar is pulled by motor and spiral shell is driven
Rotation broaching tool moves along a straight line to the side away from workpiece, and controls linearity for 0.02mm, and the translational speed of spiral broach is
1.2m/min, while spiral broach is moved, rotary components are started working, and drive turntable rotation, so as to drive workpiece edge
It is rotated clockwise, and the rotary speed of workpiece is 15r/min；
d）Completion pickup：After machining, workpiece is removed from organisation of working, complete the processing of the helical tooth of impeller.
Further, the upper end of the locating piece is also equipped with a draw ring.
Further, the processing assembly also includes a cleaning assembly, and the cleaning assembly is arranged on processing machine including one
The cleaning case of frame bottom, and a pair of washer jets being connected with cleaning case, one of washer jet against latch assembly, separately
Inwall of one washer jet against the close latch assembly side of the groove in processing frame.
Further, the groove in processing frame upper end is located near the side of latch assembly also has one to processing machine
The waste residue holding tank of frame inner recess.
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 a detent is additionally provided with the outside of the side of tightening piece, together
When there is corresponding positioning convex in the inwall of lock sleeve.
The advantage of the invention is that：Using processing method of the invention when the helical tooth to impeller is processed, coordinate
Special organisation of working, and to spiral broach processing tooth columns, size, the number of teeth, and processing when spiral broach speed
Degree and the rotary speed of workpiece these parameters carry out rational matching design, so that the helical tooth of impeller can be disposably processed,
And ensure the machining accuracy of helical tooth, it is to avoid there is deviation and cause product rejection or secondary operation.
By the setting of latch assembly, using the cooperation between expansion sleeve and lock sleeve, operationally, workpiece draws in spiral
Expansion sleeve is driven to be compressed to lock sleeve under the pulling function of knife, now due to tightening up bore of the bore open than the tightening piece after spreading
It is small, therefore gap between each tightening piece can be gradually reduced, so as to by Workpiece clamping, it is ensured that processing is smoothed out, and
In pickup, the power that spiral broach is applied to workpiece is disappeared, expansion sleeve under the elastic reaction of itself away from lock sleeve, each
Tightening piece spreading again, now can unloading workpiece, whole process need not be directly connected to part and workpiece is locked, it is convenient install with
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, detent is set on expansion sleeve, while positioning convex is set on lock sleeve, so that 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.
For the installation of spiral broach, by the rectangle draw-in groove on the groove and location hole, and spiral broach on pull bar
Cooperation between locating piece, realizes the location and installation between spiral broach and pull bar, without being directly connected to part using any
Work piece is capable of achieving, it is convenient to install and dismounting；In addition, setting a draw ring by the upper end of locating piece, facilitate locating piece
Be put into and taking-up.
In the present invention, by the setting of support unit, the other end of spiral broach can be supported, and by support
The setting of frame and guide rail so that tray can be with the movement of spiral broach with dynamic, it is ensured that spiral broach is in process
Horizontal level, it is to avoid because spiral broach end it is sagging cause helical tooth machining deviation, product rejection, secondary operation etc. bad
Influence；In addition, setting card bead on tray, and corresponding annular slot is set on spiral broach, using between the two
Coordinate, it is ensured that clamping of the spiral broach on tray, it is to avoid occur influenceing follow-up adding with respect to the phenomenon slided between the two
Work.
By the setting of cleaning assembly, the cleaning liquid sprayed during processing using two nozzle clearings is to spiral
Broaching tool and workpiece are cleared up, it is to avoid being smoothed out for processing is had influence on because of the presence of waste residue.
For the setting of waste residue holding tank, can to processing when the waste residue that produces be collected, in order to follow-up unification
Treatment.
Brief description of the drawings
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
Fig. 1 is the schematic diagram of decelerator impeller.
Fig. 2 is the schematic diagram of the special machine structure in the present invention.
Fig. 3 is the schematic diagram of spiral broach in the present invention.
Fig. 4 is the schematic diagram of locating piece in the present invention.
Fig. 5 is the schematic diagram of expansion sleeve in the present invention.
Fig. 6 is the side view of expansion sleeve in the present invention.
Fig. 7 is the schematic diagram of tray in the present invention.
Specific embodiment
The following examples can make professional and technical personnel that the present invention is more fully understood, but therefore not send out this
It is bright to be limited among described scope of embodiments.
A kind of special organisation of working of truck Retarder Impeller Machining as shown in Fig. 2-Fig. 7, including
One processing frame 3, processing assembly is provided with processing frame 3, and processing assembly includes
One broaching tool component, broaching tool component includes a spiral broach 4, has one to hold spiral broach 4 in water in the upper end of processing frame 3
Square to reciprocating groove 5, at the same one end of processing frame 3 have that an appearance spiral broach 4 passes through and with the groove 5
The through hole being connected, the other end of processing frame 3 have one stretch into it is in the groove and by quick despatch structure and spiral
The connected pull bar 6 of broaching tool 4, the pull bar 6 can be driven by motor and be moved back and forth along the bearing of trend of groove 5.
Quick despatch structure is specially：The end of the one end being connected with pull bar 6 in spiral broach 4 is symmetrical arranged with a pair
Rectangle draw-in groove 7, as shown in figure 3, there is a circular groove for holding the insertion of spiral broach 4 end in one end of pull bar 6 simultaneously,
There is a location hole 8 being connected with the groove, spiral broach 4 to pass through one after stretching into the groove of the end of pull bar 6 for the upper end of pull bar 6
Locating piece 9 is inserted into from location hole 8 and blocks fixed after the rectangle draw-in groove 7 on spiral broach 4, has in the lower end of locating piece 9
The one inverted U-shaped groove 11 corresponding with the rectangle draw-in groove of spiral broach, as shown in Figure 4.For the installation of spiral broach 4, lead to
The cooperation between rectangle draw-in groove 7 and locating piece 9 on the groove crossed on pull bar 6 and location hole 8, and spiral broach 4, realizes
Location and installation between spiral broach 4 and pull bar 6, without being capable of achieving work piece, convenient peace using any part that is directly connected to
Dress and dismounting.
A draw ring 10 is also equipped with the upper end of locating piece 9.By in the upper end of locating piece 9, a draw ring 10 is set, it is convenient
Locating piece 9 is put into and taking-up.A draw ring 10 is set by the upper end of locating piece 9, facilitates being put into and taking-up for locating piece 9.
The side of pull bar 6 is located remotely from the groove 5 of processing frame 3 upper end also has one to the processing inner-concave of frame 3
Sunken waste residue holding tank 12.For the setting of waste residue holding tank 12, can to processing when the waste residue that produces be collected, in order to
Follow-up is uniformly processed.
One latch assembly, the locking unit be arranged on processing frame 3 on away from pull bar 6 one end, including from inside to outside according to
The secondary expansion sleeve 13 being coaxially disposed, lock sleeve 14 and rotating disk 15, while in the end of processing frame 3 there is appearance lock sleeve 14 to insert
Through hole.
Schematic diagram as shown in Figure 5, Figure 6 understands that there is a groove 13 and for holding workpiece installation to hold in expansion sleeve 13
The through hole 14 that spiral broach 4 is passed through, expansion sleeve 13 includes a cylindric expansion sleeve main body 15, is located in expansion sleeve main body 15 and installed
The side of workpiece has several tightening pieces 16 in coniform distribution, leaves gap 17 between adjacent tightening piece 16, the gap
17 through holes 14 passed through with the groove 13 and appearance spiral broach 4 that hold workpiece installation on expansion sleeve 13 are connected, and the gap 17 is prolonged
The middle part and the remote position from workpiece side of expansion sleeve main body 15 are extended, and the end in the gap 17 is in circular hole, while
There is a corresponding annular recess 18, the bore of that section in workpiece insertion expansion sleeve 18 is small on the inwall of expansion sleeve main body 15
In the bore of the groove under the spreading state of tightening piece 16, more than or equal to the bore of the groove under the tightening state of tightening piece 16, together
When the end of lock sleeve 14 have it is corresponding with tightening piece 16 it is coniform tighten up hole, and the bore for tightening up hole is less than tensioner
The bore of the circular cone formed under the spreading state of block 16, more than or equal to the mouth of the circular cone formed under the tightening state of tightening piece 16
Footpath, rotating disk 15 is fixed on the outside of lock sleeve 14 and lock sleeve 14, expansion sleeve 13 can be driven to rotate, in the circumferential surface of rotating disk 15
With tooth-shape structure.By the setting of latch assembly, using the cooperation between expansion sleeve 13 and lock sleeve 14, operationally, work
Part drives expansion sleeve 13 to be compressed to lock sleeve 14 under the pulling function of spiral broach 4, now compares spreading due to tightening up bore open
The bore of tightening piece 16 afterwards is small, therefore gap between each tightening piece 16 can be gradually reduced, so as to by Workpiece clamping, protect
What card was processed is smoothed out, and in pickup, the power that spiral broach 4 is applied to workpiece is disappeared, bullet of the expansion sleeve 13 at itself
Property effect under away from lock sleeve 14, each tightening piece 16 spreading again, now can pickup, whole process need not be directly connected to part pair
Workpiece is locked, convenient to 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 can limit the relative position radially between expansion sleeve 13 and lock sleeve 14, is kept away
Exempt from occur the phenomenon of not transfer between the two.
One rotary components, rotary unit includes that one is arranged on the rotation that processing frame 3 is located at the end of latch assembly side
Gear train, swing pinion group is collectively constituted by several to intermeshing swing pinion 21, and positioned at the swing pinion of input end
21 are rotated by motor driving, and swing pinion 21 and the rotating disk 15 positioned at output are intermeshed.
One is arranged on support unit of the processing frame 3 near latch assembly side, and the support unit is arranged on including one
The support base 22 of the side of frame 3 is processed, there are a pair along leading that the direction of motion of spiral broach 4 extends in the upper end of support base 22
Rail 23, has the bracket 24 being slidably matched therewith on guide rail 23, a tray 25 is provided with the upper end of bracket 24, in tray 25
Upper end have one to hold the arc groove 26 that spiral broach side is placed, as shown in fig. 7, the circle of the circle where the arc groove 26
The center of circle for holding the groove that spiral broach 4 is inserted on the heart and pull bar 6 it is highly consistent.By the setting of support unit, can be right
The other end of spiral broach 4 is supported, and by the setting of bracket 24 and guide rail 23 so that tray 25 can be with spiral broach
4 movement and with dynamic, it is ensured that the horizontal level in process of spiral broach 4, it is to avoid because of the sagging of the end of spiral broach 4
Cause the harmful effects such as helical tooth machining deviation, product rejection, secondary operation.
A pair symmetrically arranged card beads 27 that clamping is carried out to spiral broach 4 are also equipped with the inwall of tray 25, together
When spiral broach 4 side have one with card bead 27 coordinate annular slot 28, on tray 25 also have a pair of levels set
The cylinder shape groove of the appearance card bead activity put, this pair of card bead 27 is arranged in cylinder shape groove by back-moving spring.In tray 25
Upper setting card bead, and corresponding annular slot 28 is set on spiral broach 4, using cooperation between the two, it is ensured that spiral
Clamping of the broaching tool 4 on tray 25, it is to avoid occur influenceing follow-up processing with respect to the phenomenon slided between the two.
One cleaning assembly, cleaning assembly includes that one is arranged on the cleaning case of processing frame 3 bottom, and is connected with cleaning case
A pair of washer jets 29, one of washer jet 29 against latch assembly, another washer jet 29 against processing frame 3
On groove close latch assembly side inwall.By the setting of cleaning assembly, using two nozzle clearings 29 in processing
During the cleaning liquid that is sprayed spiral broach 4 and workpiece are cleared up, it is to avoid processing is had influence on because of the presence of waste residue
Be smoothed out.
In the processing method tool being processed to truck Retarder impeller using above-mentioned special organisation of working
Body is realized by following step：
The first step, first, impeller workpiece to be processed is fitted into special organisation of working, by the end of impeller workpiece to be processed
In the groove 13 of portion's insertion expansion sleeve 13, the assembling of workpiece is completed, the workpiece is after helical tooth is processed, and the maximum of its inwall is straight
Footpath is 48 ± 0.25mm, and minimum diameter is 42.3 ± 0.059mm, and the rotation direction of workpiece internal screw tooth is dextrorotation, and helical angle is 39 °
20 ' 13 ", the gradient on each revolution of slope is 178.42.
Second step, the size requirement of the helical tooth of the impeller processed as needed takes the spiral broach 4 that a correspondence is required,
Equidistant on the spiral broach 4 that 97 row processing tooth is distributed with, the number of teeth of each column processing tooth is 12, and the processing tooth of workpiece is contacted at first
A diameter of 42.30mm, the diameter of processing tooth thereafter gradually increases, and the lifting capacity of each column tooth is 0.07mm, and spiral is drawn
One end of knife 4 passes through afterwards from the through hole of impeller and stretches to the upper end of the groove 5 in a processing frame 3, and then, pull bar 6 exists
The position of spiral broach 4 is moved under motor driving effect, the end of spiral broach 4 is stretched into straight in the groove of pull bar 6
Rectangle draw-in groove 7 on to spiral broach 4 is moved at the location hole 8 of pull bar 6, then the upper end of the location hole 8 from pull bar 6 will position
Block 9 is embedded in, and the rectangle draw-in groove 7 of spiral broach 4 is blocked using locating piece 9, then by the other end insertion tray 25 of spiral broach 4
Groove 26 in, and the annular slot 28 on spiral broach 4 is blocked using card bead 27, complete the assembling of spiral broach 4.
3rd step, after the completion for the treatment of that workpiece is assembled with spiral broach 4, starts processing, is pulled pull bar 6 by motor and is driven
Spiral broach 4 moves along a straight line to the side away from workpiece, and controls linearity for 0.02mm, the translational speed of spiral broach 4
It is 1.2m/min, while spiral broach 4 is moved, rotary components are started working, and drive rotating disk 15 to rotate, so that band is started building
Part is rotated in a clockwise direction, and the rotary speed of workpiece is 15r/min.
4th step, after machining, rotary components are stopped, and are released the opposite direction of spiral broach 4 by pull bar 6, directly
Depart from workpiece to screw pull rod 4, then, workpiece is taken out from expansion sleeve 13, complete the processing of the helical tooth of impeller.
Using processing method of the invention when the helical tooth to impeller is processed, coordinate special organisation of working, and
To spiral broach processing tooth columns, size, the number of teeth, and processing when spiral broach speed and the rotary speed of workpiece
These parameters carry out rational matching design, so that the helical tooth of impeller can be disposably processed, and ensure the processing of helical tooth
Precision, it is to avoid deviation occur and cause product rejection or secondary operation.
It should be understood by those skilled in the art that, the present invention is not limited to the above 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 all fall within the protetion scope of the claimed invention.The claimed scope of the invention
By appending claims and its equivalent thereof.
Claims (6)
1. a kind of truck Retarder Impeller Machining method, it is characterised in that：The step of processing method is：
a）Workpiece is assembled：First, impeller workpiece to be processed is fitted into special organisation of working, the organisation of working includes one
Processing frame, processing assembly is provided with processing frame, and the processing assembly includes
One broaching tool component, the broaching tool component includes a spiral broach, in the upper end of processing frame there is an appearance spiral broach to exist
The reciprocating groove of horizontal direction, at the same processing frame one end have one appearance spiral broach pass through and with the groove phase
The through hole of connection, the other end of processing frame have one stretch into it is in the groove and by quick despatch structure and spiral broach
Connected pull bar, the quick despatch structure is specially：The end of the one end being connected with pull bar in spiral broach has a pair pairs
Claim the rectangle draw-in groove for setting, while there is a groove for holding the insertion of the spiral broach end in one end of pull bar, in the upper end of pull bar
With a location hole being connected with the groove, the spiral broach is stretched into after the groove of tie rod end by a positioning block from fixed
Position hole is inserted into and blocks fixed, the square with spiral broach in the lower end of locating piece after the rectangle draw-in groove on spiral broach
Corresponding inverted U-shaped groove at shape draw-in groove, the pull bar can be driven by motor and be carried out back and forth along the bearing of trend of groove
Motion；
One latch assembly, the locking unit is arranged on one end away from pull bar in processing frame, including same successively from inside to outside
Expansion sleeve, lock sleeve and rotating disk that axle is set, while there is the through hole for holding lock sleeve insertion in the end of processing frame, it is described to rise
There is the groove that an appearance workpiece is installed and the through hole that an appearance spiral broach is passed through, the expansion sleeve includes that one is cylindric in tight set
Expansion sleeve main body, the side for being located at installation workpiece in expansion sleeve main body has several tightening pieces in coniform distribution, adjacent
Gap is left between tightening piece, the through hole that the gap passes through with the groove and appearance spiral broach that hold workpiece installation on expansion sleeve is connected
It is logical, and the gap extends to the middle part and the remote position from workpiece side of expansion sleeve main body, workpiece inserts that in expansion sleeve
One section of bore is less than the bore of the groove under tightening piece spreading state, more than or equal to the groove under tightening piece tightening state
Bore, at the same the end of lock sleeve have it is corresponding with tightening piece it is coniform tighten up hole, and the bore for tightening up hole is less than
The bore of the circular cone formed under tightening piece spreading state, more than or equal to the mouth of the circular cone formed under tightening piece tightening state
Footpath, the rotating disk is fixed on the outside of lock sleeve and lock sleeve, expansion sleeve can be driven to rotate, and has tooth in the circumferential surface of rotating disk
Shape structure；
One rotary components, the rotary unit includes that one is arranged on the rotary teeth that processing frame is located at the end of latch assembly side
Wheel group, the swing pinion group is collectively constituted by several to intermeshing swing pinion, and positioned at the swing pinion of input end
Driven by motor and rotated, swing pinion and the rotating disk positioned at output are intermeshed；
One is arranged on support unit of the processing frame near latch assembly side, and the support unit is arranged on processing machine including one
The support base of frame side, has a pair guide rails along the extension of the spiral broach direction of motion, on guide rail in the upper end of support base
With the bracket being slidably matched therewith, the upper end of the bracket is provided with a tray, has one to hold spiral in the upper end of tray and draws
The arc groove that knife side is placed, is also equipped with a pair symmetrically arranged cards that clamping is carried out to spiral broach on the inwall of tray
Pearl, while the side in spiral broach has an annular slot coordinated with card bead, also has a pair on tray and is horizontally disposed with
Appearance card bead activity cylinder shape groove, the card bead by back-moving spring be arranged on cylinder shape groove in；
The end of impeller workpiece to be processed is embedded in the groove of expansion sleeve, the assembling of workpiece is completed, the workpiece is being processed
After helical tooth, the maximum gauge of its inwall is 48 ± 0.25mm, and minimum diameter is 42.3 ± 0.059mm, workpiece internal screw tooth
Rotation direction is dextrorotation, and helical angle is 39 ° 20 ' 13 ", the gradient on each revolution of slope is 178.42；
b）Broaching tool is assembled：The size requirement of the helical tooth of the impeller processed as needed, takes the spiral broach that a correspondence is required, should
Equidistant on spiral broach that 97 row processing tooth is distributed with, the number of teeth of each column processing tooth is 12, and the processing tooth of workpiece is contacted at first
A diameter of 42.30mm, the diameter of processing tooth thereafter gradually increases, and the lifting capacity of each column tooth is 0.07mm, by spiral broach
One end from the through hole of impeller through rear and stretch to the upper end of groove in a processing frame, then, pull bar is driving electricity
The position of spiral broach is moved under machine driving effect, the end of spiral broach is stretched into the groove of pull bar until spiral broach
On rectangle draw-in groove be moved at the location hole of pull bar, then be embedded in for locating piece by the upper end of the location hole from pull bar, using positioning
Block blocks spiral broach, then the other end of spiral broach is embedded in the groove on tray, and blocks spiral broach using card bead
On annular slot, complete spiral broach assembling；
c）Work pieces process：After the completion for the treatment of that workpiece is assembled with spiral broach, start processing, pull bar is pulled by motor and spiral shell is driven
Rotation broaching tool moves along a straight line to the side away from workpiece, and controls linearity for 0.02mm, and the translational speed of spiral broach is
1.2m/min, while spiral broach is moved, rotary components are started working, and drive turntable rotation, so as to drive workpiece edge
It is rotated clockwise, and the rotary speed of workpiece is 15r/min；
d）Completion pickup：After machining, workpiece is removed from organisation of working, complete the processing of the helical tooth of impeller.
2. truck Retarder Impeller Machining method according to claim 1, it is characterised in that：The locating piece
Upper end be also equipped with a draw ring.
3. truck Retarder Impeller Machining method according to claim 1, it is characterised in that：The processing group
Part also includes a cleaning assembly, and the cleaning assembly includes a cleaning case for being arranged on processing frame bottom, and and cleaning case
A pair of connected washer jets, against latch assembly, another washer jet is opposite to be processed in frame one of washer jet
Groove close latch assembly side inwall.
4. truck Retarder Impeller Machining method according to claim 1, it is characterised in that：In processing frame
The groove of upper end is located near the side of latch assembly also has a waste residue holding tank to processing frame inner recess.
5. truck Retarder Impeller Machining method according to claim 1, it is characterised in that：The tightening piece
On also there is a limited block for stretching out, and after expansion sleeve is tightened up, all of limited block is annularly distributed.
6. truck Retarder Impeller Machining method according to claim 1, it is characterised in that：In expansion sleeve master
Body be located at a detent is additionally provided with the outside of the side of tightening piece, while lock sleeve inwall have correspond to therewith
Positioning convex.
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| CN201611081695.6A CN106736315B (en) | 2016-11-30 | 2016-11-30 | A kind of truck Retarder Impeller Machining method |
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|---|---|---|---|
| CN201611081695.6A CN106736315B (en) | 2016-11-30 | 2016-11-30 | A kind of truck Retarder Impeller Machining method |
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| CN106736315A true CN106736315A (en) | 2017-05-31 |
| CN106736315B CN106736315B (en) | 2019-03-19 |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106736315B (en) | 2019-03-19 |
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