CN209632178U - Rear steering section center hole machined gang tool - Google Patents
Rear steering section center hole machined gang tool Download PDFInfo
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- CN209632178U CN209632178U CN201920263177.9U CN201920263177U CN209632178U CN 209632178 U CN209632178 U CN 209632178U CN 201920263177 U CN201920263177 U CN 201920263177U CN 209632178 U CN209632178 U CN 209632178U
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Abstract
The utility model relates to field of machining and a kind of rear steering section center hole machined gang tool is provided, rear steering section center hole machined gang tool includes: cutter hub, and cutter hub includes knife handle, knife bar and ladder-like cutter head；Ladder-like cutter head is formed at least two cutters tooth being arranged circumferentially, and at least two cutters tooth are recessed with chip-breaker between the adjacent cutter tooth of the axially extending and any two of rear steering section center hole machined gang tool；And blade assembly, blade assembly includes a variety of blades, blade assembly includes at least two groups blade corresponding at least two cutters tooth, on the mounting plane for the peripheral side that every group of blade is axially mounted to cutter tooth described in, the projection of all blades in the axial direction is continuous and covers the processing interval of rear steering section centre bore.
Description
Technical field
The utility model relates to field of machining, more specifically, are related to a kind of rear steering section center hole machined group
Close cutter.
Background technique
The rear steering section centre bore of automobile is often made of a variety of machining features, such as certain vapour shown in Figure 1A and 1B
The rear steering section centre bore of vehicle enterprise is by 45 ° at various sizes of arc chord angle at the string hole of 3 different pore sizes, plane at 2,2,1
30 ° of chamfering compositions at chamfering and 1.Corresponding cutters processing is respectively adopted in every kind of feature, even if Partial Feature cutter can be compound, adds
These features of work need as shown in figs. 2 a-2f 3 boring cutter, 1 face milling cutters, 2 rose reamer.Whole process needs tool changing
6 times, process is needed from both direction feed, and workbench needs to rotate 180 °.Using the cutter of special purpose, divide sequence point
The processing method of work step causes manufacturing procedure cumbersome, increases the workload of processing, extends the processing beat of single-piece, not only increases
Cost and waste of resource.In addition, number of cutters is more, the cost of charp tool is just high, and the capacity of machine cutter holder must increase, lathe
Cost must improve.
It is then desired to a kind of such rear steering section center hole machined gang tool: it can solve or at least mitigates
The shortcomings that in the presence of the above-mentioned prior art.
Utility model content
The technical problem to be solved by the utility model is to provide the combinations of such a rear steering section center hole machined
Cutter: being capable of the once processing of all features of knuckle centre bore after the completion.
Technical solution used by the utility model is as described below.
The first possible embodiment according to the present utility model, rear steering section center hole machined gang tool
It include: cutter hub, the cutter hub includes knife handle, knife bar and ladder-like cutter head；The ladder-like cutter head, which is formed with, to be arranged circumferentially
At least two cutters tooth, at least two cutters tooth along rear steering section center hole machined gang tool it is axially extending simultaneously
And chip-breaker is recessed between the adjacent cutter tooth of any two；And blade assembly, the blade assembly include a variety of knives
Piece, the blade assembly include blade described at least two groups corresponding at least two cutters tooth, and blade described in every group is along institute
On the mounting plane for stating the peripheral side for being axially mounted to the corresponding cutter tooth, throwing of all blades in the axial direction
Shadow is continuous and covers the processing interval of the rear steering section centre bore.
The first above-mentioned possible embodiment according to the present utility model, blade described in every group include at least chamfer machining
With one of blade, hole machined blade, arc chord angle processing blade, plane machining blade, so as in the rear steering
Section center hole machined is processed respectively when being turned round with gang tool with the axis of rear steering section center hole machined gang tool
Chamfering, circular hole, arc chord angle and the plane perpendicular to the axis.
Second of possible embodiment according to the present utility model, the ladder-like cutter head are formed with even number cutter tooth,
Blade described in two groups installed on the mounting plane of the cutter tooth of any two radial symmetric is identical and radial right each other
Claim, blade described in two groups installed on the mounting plane of the cutter tooth of any two radial asymmetrical is not identical and each other
It axially offsets.
The third possible embodiment according to the present utility model, there are four cutter tooth, institutes for the ladder-like cutter head formation
Stating blade assembly includes blade described in four groups.
4th kind of possible embodiment according to the present utility model, blade described in every group include four blades, first group
Four blades be respectively the first blade, the second blade, third blade, fourth blade, second group of four blades are respectively
Five blades, the 6th blade, the 7th blade, the 8th blade, four blades of third group and described first group of four blades are complete
Identical and radial symmetric each other, the 4th group of four blades are identical safely as described second group of four blades and radial right each other
Claim.
5th kind of possible embodiment according to the present utility model, the ladder-like cutter head are divided into four according to diameter
Section, respectively first segment, second segment, third section and the 4th section since away from one end of the knife handle, described 4th section straight
Diameter is greater than the diameter of the third section, and the diameter of the third section is greater than the diameter of the first segment, the diameter of the first segment
Greater than the diameter of the second segment.
6th kind of possible embodiment according to the present utility model, the rear steering section centre bore correspond to the ladder
The third section of shape cutter head to the first segment successively include the first hole, the second hole and third hole, the diameter in first hole
Greater than the diameter in the third hole, the diameter in the third hole is greater than the diameter in second hole；First hole and described the
The first plane is formed between two holes；The second plane is formed between second hole and third hole；First hole and described first
The adjacent first end of plane is formed with the first arc chord angle；The second end shape opposite with the first end in first hole
At there is the first chamfering；The second chamfering is formed between second plane and second hole；Second plane and described the
The second arc chord angle is formed between three holes；
First blade is mounted on the third section of the ladder-like cutter head, for processing first hole；
Second blade be mounted on the second segment of the ladder-like cutter head and the joining place of the third section and
Across the second segment and the third section, for processing first hole and first arc chord angle and first plane；
The third blade is mounted on the second segment of the ladder-like cutter head, for processing second hole and described
Second chamfering；
The fourth blade is mounted on the first segment of the ladder-like cutter head, for processing the third hole；
5th blade be mounted on the ladder-like cutter head the third section and the 4th section of the joining place and
Across the third section and 4th section described, for processing first chamfering and first hole；
6th blade is mounted on the third section of the ladder-like cutter head, for processing first hole；
7th blade be mounted on the second segment of the ladder-like cutter head and the joining place of the third section and
Across the second segment and the third section, for processing second hole；
8th blade is mounted on the first segment of the ladder-like cutter head, for processing second plane, institute
State the second arc chord angle and the third hole.
The third possible embodiment according to the present utility model, there are six cutters tooth for the ladder-like cutter head formation, and
And the blade assembly includes six groups of blades.
8th kind of possible embodiment according to the present utility model, blade described in every group include four blades.
It is according to the present utility model one or more embodiment, can be realized it is as described below the utility model has the advantages that
It 1, being capable of the once processing of all features of knuckle centre bore after the completion.It is existing compared to existing processing method
There is rear steering section center hole machined that cutter is respectively processed one or more features with N (N >=3), at least need feed n times, uses
After the gang tool of the utility model, feed can process all positions twice, when cutting process saves the cutting of N-2 knife
Between；
2, originally using N cutter, tool changing n times are needed, and use the gang tool of the utility model, it is only necessary to tool changing 1
It is secondary, N-1 tool change time is saved, in addition, also having lacked the empty stroke time that forward and back knife process when N-1 tool changing generates, is changed
Knife time and empty stroke time are non-cutting time, when cutting parameter cannot improve optimization again, save non-cutting time pair
Become particularly important in improving production efficiency；
3, number of cutters saves the cost of charp tool, while machine cutter holder capacity requirement is small from N becoming 1；
4, overturning workbench or rotary table are not needed during processing rear steering section centre bore, convenient for guaranteeing part essence
Degree.
Detailed description of the invention
With reference to the accompanying drawings by utility model feature, advantage and illustrative embodiments it is technical and industrial
Meaning be described, in the accompanying drawings, identical appended drawing reference indicates identical element, and wherein:
Figure 1A is the schematic cross-sectional view according to the rear steering section of automobile in the prior art；
Figure 1B is the partial enlarged view of region Z in Figure 1A；
Fig. 2A is the main view of first cutter used in rear steering section centre bore shown in manuscript 1A in the prior art；
Fig. 2 B is the main view of second cutter used in rear steering section centre bore shown in manuscript 1A in the prior art；
Fig. 2 C is the main view of third cutter used in rear steering section centre bore shown in manuscript 1A in the prior art；
Fig. 2 D is the main view of the 4th cutter used in rear steering section centre bore shown in manuscript 1A in the prior art；
Fig. 2 E is the main view of the 5th cutter used in rear steering section centre bore shown in manuscript 1A in the prior art；
Fig. 2 F is the main view of the 6th cutter used in rear steering section centre bore shown in manuscript 1A in the prior art；
Fig. 3 is the rear steering section center hole machined gang tool of an illustrative embodiments according to the present utility model
Stereoscopic schematic diagram；
Fig. 4 is the main view of the center of rear steering section shown in Fig. 3 hole machined gang tool；
Fig. 5 is the top view of the center of rear steering section shown in Fig. 3 hole machined gang tool；
Fig. 6 is the left view of the center of rear steering section shown in Fig. 3 hole machined gang tool；
Fig. 7 is to process rear steering section centre bore in rear steering section according to the present utility model center hole machined gang tool
Method in rear steering section center hole machined gang tool feed path figure；
Fig. 8 A, which is rear steering section according to the present utility model center hole machined gang tool, contains rear steering section in processing
Schematic sectional view when the rear steering section to be processed of centre bore；
Fig. 8 B is the partial enlarged view of region Y in Fig. 8 A；
In figure:
1, knife handle；
2, knife bar；
3, ladder-like cutter head；31, chip-breaker；311, mounting plane；32, cutter tooth；321, the first cutter tooth；322, the second knife
Tooth；323, third cutter tooth；324, the 4th cutter tooth；341, the first cooling hole；342, the second cooling hole；
41, the first blade；42, the second blade；43, third blade；44, fourth blade；45, the 5th blade；46, the 6th knife
Piece；47, the 7th blade；48, the 8th blade；
A, first segment；B, second segment；C, third section；D, the 4th section；
5, rear steering section to be processed；50, rear steering section；51, the first chamfering；52, the first hole；53, the first arc chord angle；54,
First plane；55, the second hole；56, the second chamfering；57, the second plane；58, the second arc chord angle；59, third hole；
61, face milling cutters；62, double-blade boring cutter；63, double-blade boring cutter；64, rose reamer；65, double-blade boring cutter；66, rose reamer.
Specific embodiment
The utility model illustrative embodiments are described in detail with reference to the accompanying drawings.To illustrative embodiments
Description is definitely not the limitation to the utility model and its application or usage merely for the sake of demonstration purpose.Moreover, each portion in figure
The size and ratio of part are also only schematically, not exactly correspond to actual product.
Figure 1A is according to the schematic cross-sectional view of the rear steering section of automobile in the prior art, and Figure 1B is region Z in Figure 1A
Partial enlarged view.Firstly, the maximum gauge of rear steering section centre bore tool needs to be less than the center of rear steering section 50
Diameter after the roughing of hole, rear steering section 50 is after carrying out counter-pressure casting, and removing cast gate, (special purpose machine tool is amputated with saw blade cutter and poured
Mouthful) and pre-drilling center hole, each hole wall and seam allowance allowance are that 2-3mm is only finished into after machine tooling process, i.e., only
It need to be milled with the hole machined gang tool interpolation of rear steering section center and complete processing.
From Figure 1A and Figure 1B it is found that hereafter knuckle centre bore has 9 machining features, rear steering section centre bore corresponds to
The third section c to first segment a of ladder-like cutter head 3 successively includes the first hole 52, the second hole 55 and third hole 59, the first hole 52
Diameter is greater than the diameter in third hole 59, and the diameter in third hole 59 is greater than the diameter in the second hole 55；First hole 52 and the second hole 55 it
Between be formed with the first plane 54；The second plane 57 is formed between second hole 55 and third hole 59；First hole 52 and the first plane
54 adjacent first ends are formed with the first arc chord angle 53；The second end opposite with first end in the first hole 52 is formed with
One chamfering 51；The second chamfering 56 is formed between second plane 57 and the second hole 55；Shape between second plane 57 and third hole 59
At there is the second arc chord angle 58.
When in the prior art, for the centre bore of the rear steering section 50 in manuscript 1A and Figure 1B, current processing method
To be followed successively by face by the sequencing used using 6 kinds of cutters shown in Fig. 2A, Fig. 2 B, Fig. 2 C, Fig. 2 D, Fig. 2 E and Fig. 2 F
Milling cutter 61；Double-blade boring cutter 62, double-blade boring cutter 63, rose reamer 64, double-blade boring cutter 65 and rose reamer 66, wherein face milling cutters 61 are used for
The first plane 54 in manuscript 1B, the annular surface is wider, and boring cutter blade width is inadequate, needs to be processed with 61 interpolation of face milling cutters；
62 diameter of double-blade boring cutter is D1, and for processing the second hole 55, the fillet of double-blade boring cutter 62 is not required；63 diameter of double-blade boring cutter is
D2, for processing the first hole 52 and the first arc chord angle 53；64 specification of rose reamer is θ 1, for processing the first chamfering 51.The above work
Step is processed from the knuckle back side, and platen overturns 180 ° or workbench and fixture is driven to rotate 180 °, and following work step is from steering
The processing of section front.65 diameter of double-blade boring cutter is D3, processing third hole 59, the second arc chord angle 58 and the second plane 57, rose reamer 66
Specification is θ 2, processes the second chamfering 56.This method tooling step is more, single-piece pitch time is long, and production efficiency is low.
Fig. 3 is the rear steering section center hole machined gang tool of an illustrative embodiments according to the present utility model
Stereoscopic schematic diagram.As shown in figure 3, the rear steering section center hole machined of an illustrative embodiments according to the present utility model
It include cutter hub and blade assembly with gang tool.Cutter hub includes the knife handle 1, knife bar 2 and rank sequentially formed along the axis of cutter hub
Scalariform cutter head 3.One end of knife handle 1 forms clamping part, can be installed cutter hub to fixture by the clamping part, thus by cutter hub and folder
Tool is fixed, and rear steering section to be processed is fixed to another fixture, passes through the relative motion of cutter hub and rear steering section to be processed, processing
Rear steering section to be processed.Knife bar 2 plays the work of connection knife handle 1 and ladder-like cutter head 3 between knife handle 1 and ladder-like cutter head 3
With.
Fig. 4, Fig. 5 and Fig. 6 are respectively the main view of the center of rear steering section shown in Fig. 3 hole machined gang tool, overlook
Figure and left view.Referring to such as 4, Fig. 5 and Fig. 6, it is mounting plane 311, set of blades that the one side in chip-breaker 31 is located in cutter tooth 32
Part is mounted on mounting plane 311, so that the contact area of blade assembly and the mounting plane 311 is larger, guarantees set of blades
The shear strength of the junction of part and the mounting plane 311 can suitably increase to ensure that the shear resistance of blade assembly
The amount of feeding improves processing efficiency.
Ladder-like cutter head is divided into four sections according to diameter, since away from the knife handle one end respectively first segment a,
Second segment b, third section c and the 4th section of d, the diameter of the 4th section of d are greater than the diameter of third section c, and the diameter c of third section is greater than the
The diameter of one section of a, the diameter of first segment a are greater than the diameter of second segment b.
Ladder-like cutter head 3 is formed with four cutters tooth 32 being arranged circumferentially, respectively the first cutter tooth 321, the second cutter tooth
322, third cutter tooth 323 and the 4th cutter tooth 324 (not shown in Fig. 3), cutter tooth is along rear steering section center hole machined gang tool
It is axially extending.Also, chip-breaker 31 is recessed between the adjacent cutter tooth of any two, when ladder-like cutter head 3 rotates, shape
It will be cut off from the material under the cutting of position to be processed at the cutter tooth in 31 two sides of chip-breaker, so that processing can be continuous.
Cutter tooth 32 shown in Fig. 3 is four, accordingly, totally four groups of blade assembly, first group of blade include the first blade 41,
Second blade 42, third blade 43 and fourth blade 44, second group of blade are the 5th blade 45, the 6th blade 46, the 7th blade
47 and the 8th blade 48, four blades of third group blade are identical with first group of four blades and radial symmetric each other,
4th group of four blades and the four of second group blades are identical safely and radial symmetric each other.First group of blade and third group knife
Piece is respectively arranged on the mounting plane 311 of the peripheral side of the first cutter tooth 321 and the peace of the peripheral side of third cutter tooth 323
It fills in plane 311, second group of blade and the 4th group of blade are respectively arranged in the mounting plane of the peripheral side of the second cutter tooth 322
On 311 and on the mounting plane 311 of the peripheral side of the 4th cutter tooth 324.First group of blade to the 4th group of blade all blades
Axial direction along ladder-like cutter head 3 is sequentially distributed, and all blade assemblies are continuous in the projection on the axis of cutter hub and after covering
The processing interval of knuckle centre bore processes manifold rear steering section centre bore to meet, while turning after in turn ensuring
To the continuous of section centre bore.
Fig. 8 A, which is rear steering section according to the present utility model center hole machined gang tool, contains rear steering section in processing
Schematic sectional view when the rear steering section to be processed of centre bore.Fig. 8 B is the partial enlarged view of region Y in Fig. 8 A.It is to be processed
Rear steering section 5 has centre bore identical with the rear steering section in Figure 1A -1B.The rear steering section center hole machined of the utility model
Rear steering section center is processed with the position of each blade of gang tool and in rear steering section center hole machined gang tool
The effect of each blade is as follows during hole:
First blade 41 is mounted on the third section c of ladder-like cutter head 3, for processing first hole 52；
Second blade 42 is mounted on the joining place of the second segment b and third section c of ladder-like cutter head 3 and across second segment b
With third section c, it is used to process the first hole 52 and the first arc chord angle 53 and the first plane 54；
Third blade 43 is mounted on the second segment b of ladder-like cutter head 3, for processing the second hole 55 and the second chamfering 56；
Fourth blade 44 is mounted on the first segment a of ladder-like cutter head 3, for processing third hole 59；
5th blade 45 is mounted on the joining place of third section c and the 4th section of d of ladder-like cutter head 3 and across third section c
With the 4th section of d, it is used to process the first chamfering 51 and the first hole 52；
6th blade 46 is mounted on the third section c of ladder-like cutter head 3, for processing the first hole 52；
7th blade 47 is mounted on the joining place of the second segment b and third section c of ladder-like cutter head 3 and across second segment b
With third section c, it is used to process the second hole 55；
8th blade 48 is mounted on the first segment a of ladder-like cutter head 3, for processing the second plane 57, the second arc chord angle 58
With third hole 59.
In addition, cutter hub center is provided with the first cooling hole 341 referring to Fig. 3, rear steering section center hole machined is pressed from both sides with gang tool
It holds after machine tool chief axis, first cooling hole 341 at cutter hub center is connected with the cooling hole in machine tool chief axis.In each chip-breaker 31
Blade installation site is provided with multiple second cooling holes 342 in the groove face adjacent with mounting plane 311, described second is cooling
Hole 342 is connected with first cooling hole 341 at cutter hub center, and after lathe opens cooling button, coolant liquid is passed through by machine tool chief axis
First cooling hole 341 at cutter hub center sprays the blade in blade using the second cooling hole 342 of each blade of correspondence.
It should be noted that, although the cutter tooth 32 shown in Fig. 3 is four, but those of ordinary skill in the art will appreciate that
, can be set at least two, such as two, three, four, five, six, seven, eight etc., preferably four or
Six.When the ladder-like cutter head 3 is formed with even number cutter tooth, the installation of the cutter tooth 32 of any two radial symmetric is flat
The two groups of blades installed on face 311 are identical and radial symmetric each other, the installation of the cutter tooth 32 of any two radial asymmetrical
The two groups of blades installed in plane 311 are not identical and axially offset each other.Blade assembly can detachably be pacified using such as inlaying
Dress such as welds non-dismountable installation, when using detachable installing, facilitates the replacement and installation of blade assembly.
In addition, though blade assembly includes four groups of blades, but those of ordinary skill in the art can manage in Fig. 3-6
Solution, blade assembly correspondingly can include at least two groups knife according at least two cutters tooth being arranged on demand as described above
Piece, such as two groups of blades, three groups of blades, four groups of blades, five groups of blades, six groups of blades, seven groups of blades, eight groups of blades etc., preferably
Four groups of blades or six groups of blades.
Although in addition, a variety of blades included by blade assembly are set according to sequence as shown in the figure and position in Fig. 3-6
It sets, but one of ordinary skill in the art will appreciate that blade type and number included in every group of blade can root
According to needing to change, the position of each blade also can according to need change.
In the present invention, as long as the setting of each blade meets the following conditions: 1) every group of blade includes at least
One of chamfer machining blade, hole machined blade, arc chord angle processing blade, plane machining blade, so as to rear
It is processed respectively when the axis revolution of knuckle center hole machined gang tool after knuckle center hole machined gang tool
Chamfering, circular hole, arc chord angle and the plane perpendicular to the axis；And 2) projection of all blades in the axial direction it is continuous and
Cover the processing interval of rear steering section centre bore.
Cutter hub can use overall structure, and You Yigen bar is process, and increase the rigidity and stability of cutter, simultaneously
Meet the requirement of cutter high number of revolutions.
For the hardness and strength requirement for guaranteeing blade, the hard alloy steel blade of small size is usually selected.Due to blade ruler
Very little small, the cutting-in in cutting parameter is small, and for the shock loading that blade is subject to regard to small, process is not easy spring sword and damage, can have
Effect improves the service life of cutter, even if cutter still can be used after some blade spring sword.Certainly, those of ordinary skill in the art
It is made it is understood that can also be used and have both the other materials of hardness and strength.
Fig. 7 is combined using the rear steering section center hole machined of an illustrative embodiments according to the present utility model
The feed path figure of rear steering section center hole machined gang tool in the method for tool sharpening rear steering section centre bore.Below
It is illustratively used in conjunction with Fig. 7 and Fig. 8 A-8B to be added shown in the hole machined gang tool manuscript 8A-8B of rear steering section center
The method of rear steering section centre bore included by work rear steering section.
Center position is O point in Fig. 7, and Working position is G point, and center position is with any point on Working position line
B, any point on machining path in addition to G point are J point, and any point on O point and the J point line is E.For ease of description,
Each path is defined with reference to Fig. 7.
First path: using the line of O point and B point as diameter, connection O point is with B point and by way of the semi arch of A point；
Second path: using the line of O point and B point as radius, B point to E point and by way of 3/4 circular arc of C point and D point and
Connect E point and G point and by way of the smooth curve of F point；
Third path: using the line of O point and G point as radius, using G point as starting point and by way of the circle of H point and J point；
4th path: connection G point is with O point and by way of the semi arch of K point.
The method for processing rear steering section centre bore with gang tool using the rear steering section center hole machined of the utility model
It is as follows:
Cutter centering, mobile rear steering section centre bore tool to center position, so that axial upper rear steering section
The axis of center hole machined gang tool is overlapped with O point, and O point is located on the axis of rear steering section centre bore to be processed；
Interpolation feed, the interpolation feed are to move rear steering section centre bore tool counterclockwise with first path；
Interpolation processing, the interpolation, which is processed as moving rear steering section centre bore counterclockwise with the second path and third path, to be added
Work cutter is processed twice according to the second path and third path；And
Interpolation withdrawing, the interpolation withdrawing are to move rear steering section centre bore tool counterclockwise with the 4th path,
The rear steering section centre bore tool is set to be back to the O point.
So far, this is completed the process.
Turn after being processed using the rear steering section center hole machined of the illustrative embodiments of the utility model with gang tool
It is had the beneficial effect that the method for section centre bore:
1, cutter number is reduced to 1 from 6, saves for four knife cutting workpiece times；
2,5 tool changing and empty stroke time are saved；
3, machine cutter holder saves 5 knife positions；
4, overturning workbench or rotary table are not needed during machining center hole, convenient for guaranteeing element precision.
The embodiments of the present invention is described in detail above.However, being not limited to above-mentioned reality in terms of the utility model
Apply mode.Without departing from the scope of the invention, various remodeling and replacement can be applied to above-mentioned embodiment party
In formula.
Claims (9)
1. a kind of rear steering section center hole machined gang tool, which is characterized in that rear steering section center hole machined group
Closing cutter includes:
Cutter hub, the cutter hub include knife handle, knife bar and ladder-like cutter head；The ladder-like cutter head, which is formed with, to be arranged circumferentially
At least two cutters tooth, at least two cutters tooth along the axially extending of rear steering section center hole machined gang tool and
Chip-breaker is recessed between the adjacent cutter tooth of any two；And
Blade assembly, the blade assembly include a variety of blades, and the blade assembly includes corresponding at least two cutters tooth
At least two groups described in blade, blade described in every group along described in be axially mounted to the corresponding cutter tooth peripheral side installation
In plane, projection of all blades in the axial direction is continuous and covers the processing interval of the rear steering section centre bore.
2. rear steering section according to claim 1 center hole machined gang tool, which is characterized in that blade described in every group
Including at least one of chamfer machining blade, hole machined blade, arc chord angle processing blade, plane machining blade,
So as in rear steering section center hole machined gang tool with the axis of rear steering section center hole machined gang tool
Line processes chamfering, circular hole, arc chord angle and the plane perpendicular to the axis when turning round respectively.
3. rear steering section according to claim 2 center hole machined gang tool, which is characterized in that the ladder-like knife
Head is formed with even number cutter tooth, knife described in two groups installed on the mounting plane of the cutter tooth of any two radial symmetric
Piece is identical and radial symmetric each other, the two groups of institutes installed on the mounting plane of the cutter tooth of any two radial asymmetrical
It is not identical and axially offset each other to state blade.
4. rear steering section according to claim 3 center hole machined gang tool, which is characterized in that the ladder-like knife
For capitiform at there are four the cutter tooth, the blade assembly includes blade described in four groups.
5. rear steering section according to claim 4 center hole machined gang tool, which is characterized in that blade described in every group
Including four blades, first group of four blades are respectively the first blade, the second blade, third blade, fourth blade, and second group
Four blades be respectively the 5th blade, the 6th blade, the 7th blade, the 8th blade, four blades of third group and described the
One group of four blades are identical and radial symmetric, the 4th group of four blades and described second group of four blades are pacified each other
Exactly the same and radial symmetric each other.
6. rear steering section according to claim 5 center hole machined gang tool, which is characterized in that the ladder-like knife
Head according to diameter is divided into four sections, respectively first segment, second segment, third section and the since away from one end of the knife handle
Four sections, the 4th section of the diameter is greater than the diameter of the third section, and the diameter of the third section is greater than the straight of the first segment
Diameter, the diameter of the first segment are greater than the diameter of the second segment.
7. rear steering section according to claim 6 center hole machined gang tool, which is characterized in that the rear steering section
Centre bore correspond to the ladder-like cutter head the third section to the first segment successively include the first hole, the second hole and third
Hole, the diameter in first hole are greater than the diameter in the third hole, and the diameter in the third hole is greater than the diameter in second hole；
The first plane is formed between first hole and second hole；The second plane is formed between second hole and third hole；Institute
It states the first hole first end adjacent with first plane and is formed with the first arc chord angle；First hole with the first end
The opposite the second end in portion is formed with the first chamfering；The second chamfering is formed between second plane and second hole；Institute
It states and is formed with the second arc chord angle between the second plane and the third hole；
First blade is mounted on the third section of the ladder-like cutter head, for processing first hole；
Second blade be mounted on the second segment of the ladder-like cutter head and the joining place of the third section and across
The second segment and the third section, for processing first hole and first arc chord angle and first plane；
The third blade is mounted on the second segment of the ladder-like cutter head, for processing second hole and described second
Chamfering；
The fourth blade is mounted on the first segment of the ladder-like cutter head, for processing the third hole；
5th blade be mounted on the ladder-like cutter head the third section and the 4th section of the joining place and across
The third section and 4th section described, for processing first chamfering and first hole；
6th blade is mounted on the third section of the ladder-like cutter head, for processing first hole；
7th blade be mounted on the second segment of the ladder-like cutter head and the joining place of the third section and across
The second segment and the third section, for processing second hole；
8th blade is mounted on the first segment of the ladder-like cutter head, for processing second plane, described
Two arc chord angles and the third hole.
8. rear steering section according to claim 3 center hole machined gang tool, which is characterized in that the ladder-like knife
Capitiform is at there are six the cutters tooth, and the blade assembly includes blade described in six groups.
9. rear steering section according to claim 8 center hole machined gang tool, which is characterized in that blade described in every group
Including four blades.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920263177.9U CN209632178U (en) | 2019-03-01 | 2019-03-01 | Rear steering section center hole machined gang tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920263177.9U CN209632178U (en) | 2019-03-01 | 2019-03-01 | Rear steering section center hole machined gang tool |
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| CN209632178U true CN209632178U (en) | 2019-11-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109759623A (en) * | 2019-03-01 | 2019-05-17 | 中信戴卡股份有限公司 | Rear steering section center hole machined gang tool and its processing method |
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2019
- 2019-03-01 CN CN201920263177.9U patent/CN209632178U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109759623A (en) * | 2019-03-01 | 2019-05-17 | 中信戴卡股份有限公司 | Rear steering section center hole machined gang tool and its processing method |
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