CN104359386B - Coaxiality detecting method used for different types of drum brakes - Google Patents
Coaxiality detecting method used for different types of drum brakes Download PDFInfo
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- CN104359386B CN104359386B CN201410691183.6A CN201410691183A CN104359386B CN 104359386 B CN104359386 B CN 104359386B CN 201410691183 A CN201410691183 A CN 201410691183A CN 104359386 B CN104359386 B CN 104359386B
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Abstract
The invention discloses a coaxiality detecting method used for different types of drum brakes, and belongs to the technical field of automobile component detecting. The coaxiality detecting method comprises the steps that firstly, detecting preparation is carried out, and an overturning plate is opened; secondly, a drum brake needing to be detected is placed on a rolling supporting base, and an inner hole positioning assembly is selected to carry out radial positioning on the drum brake; thirdly, the overturning plate is closed, it is ensured that a positioning needle is closely matched with a positioning sleeve, and a measuring rod cannot shake; fourthly, a contact of the measuring rod makes close contact with an inner hole of the drum brake by changing an adjusting pin and a spring pilot pin; fifthly, the value change of a dial indicator is observed, and detection is finished. The inner hole positioning assembly and a measuring rod assembly on the overturning plate are used in cooperation, the detection efficiency is improved on the premise that the detection precision is guaranteed, the production cost is reduced, 100 percent of online complete detection of the drum brake is achieved, and the different types of drum brakes can be detected by replacing different sizes of inner hole positioning columns.
Description
Technical field
The present invention relates to auto parts and components detection technique field, more particularly, it relates to a kind of be used for dissimilar braking
The coaxiality detecting method of drum.
Background technology
Automobile brake drum is the important safety part of running car braking, and the quality of automobile brake drum directly influences automobile
Driving safety, is related to the safety driving people and goods' property, the therefore quality to automobile brake drum for each automobile production producer
There are very strict detection and control standard.Domestic at present each vehicle bridge manufacturing firm is to form and position tolerances such as the axialities of brake drum
Mainly adopt three coordinate measurements, because three coordinate cubings are expensive, use environment is required higher, cannot in actual production
Meet online 100% measurement, can only realize inspecting by random samples by batch.Also part small enterprise is had to adopt improved brake drum cubing, but this
A little cubing low precisions, and be to be detected for same type of brake drum it is impossible to be met to dissimilar brake drum mostly
Detection demand.Therefore, how polytype brake drum is detected and certain survey can be ensured at a lower cost
Accuracy of measurement, is that automobile production enterprise endeavours problem to be solved always.
Through retrieval, there is part open with regard to the technical scheme of automobile brake drum detection.Chinese Patent Application No.:
201320001194.8, the day for announcing: on June 26th, 2013, invention and created name is: a kind of detection braking drum assembly that is used for is beated
Accessory, the right angle bearing in this patent formula and bearing are separately fixed in height difference plane at the two of base, lead to
Cross different support shafts and the combination of bushing, the detection that brake drum assembly before different model is beated can be met.Detected
When, fix front wheel brake assembly by tightening planet handle.Rotate handwheel, handwheel drives screw mandrel to rotate, and motion is made by transmission
Slide block moves up and down with respect to guide rail, and completes to detect by the compound motion rotating with workpiece that moves up and down of dial gauge.Should
Patent formula is that the brake drum assembly after assembling is detected, its influence factor has cooperation and the braking of bearing outer ring and wheel hub
The accuracy of manufacture of drum single-piece is it is impossible to meet the detection demand to brake drum axiality it is impossible to ensure precision.
Chinese Patent Application No.: 201320808013.2, the day for announcing: on April 30th, 2014, invention and created name is: one
Plant brake drum total run-out cubing, this application case discloses a kind of brake drum total run-out cubing, including workbench, measuring apparatus, system
Dynamic drum, also includes installing spindle nose on the table, assembling wheel hub and hub bearing on spindle nose, and brake drum is placed on wheel hub
On, it is also equipped with rail brackets on the table, in described rail brackets side, line slideway is installed and pays, described line slideway
It is provided with slide on paying, Connection Bracket on slide, equipped with described measuring apparatus, described measuring apparatus are stretched for the end of fixed mount
Enter in brake drum and be resisted against in the inner circle of brake drum.Shortcomings in this patent formula structure, are not preferable solutions,
Also to improve further.
Content of the invention
1. invent technical problem to be solved
It is an object of the invention to overcoming three coordinate cubing high costs in prior art, maintenance difficulty, correcting process loaded down with trivial details
And commonly cubing precision is low, cannot realize the deficiency of multi items brake drum detection, there is provided one kind is used for dissimilar braking
The coaxiality detecting method of drum is it is achieved that 100% detecting completely online of brake drum, and low to detection environmental requirement, detects
High precision, and by changing various sizes of Internal hole positioning post, different types of brake drum can be detected.
2. technical scheme
For reaching above-mentioned purpose, the technical scheme that the present invention provides is:
A kind of coaxiality detecting method for dissimilar brake drum of the present invention, is used for dissimilar system using a kind of
The axiality detection device of dynamic drum completes to detect, the steps include:
Step one, detection prepare:
Lift the handle of the axiality detection device for dissimilar brake drum, drive pilot pin to divide with positioning needle guard
From making turnover panel rotate around pin joint, and position of rotation limited by butterfly simultaneously；
Step 2, brake drum positioning:
The brake drum needing detection is placed on rolling support seat, selects Internal hole positioning total according to brake drum internal diameter size
Become, by positioning pin, Internal hole positioning assembly is installed in the first location hole and the second location hole, and make two endoporus fixed
The periphery of position post is all contacted with the inner headed face of brake drum, constitutes radial positioning；
Step 3, to measurement bar assembly position:
Lift handle, make turnover panel return back to horizontal level around pin joint, and guarantee pilot pin with positioning needle guard cooperation closely,
Measurement bar assembly is made to be located at vertical direction and cannot rock；
Step 4, regulation measurement bar:
By changing the slewing area of the depth limit measurement bar of adjusting pin and spring pilot pin, make the contact of measurement bar with
Brake drum braking surface endoporus is in close contact；
Step 5, complete detect:
Rotation brake rouses, and so that brake drum is rolled in end face and rotates on seat, and the numerical value change of observation dial gauge is divided by data
Analysis draws testing result, takes out brake drum, carries out next round detection.
As further improvement of the present invention, described step 4 is also included by tie down screw to the height adjusting guide rod
Degree is adjusted.
As further improvement of the present invention, the described axiality detection device for dissimilar brake drum, bag
Include workbench, rolling support seat, Internal hole positioning assembly, turnover panel and measurement bar assembly, the center of described workbench is equipped with rolling
Dynamic support base, is arranged with prelocalization plate and rear position plate in parallel in the both sides of workbench, the described top of rear position plate with turn over
One end of plate is hinged, the other end of turnover panel equipped with pilot pin, the upper end of described prelocalization plate equipped with positioning needle guard, turnover panel with front
Location-plate is located by connecting by the cooperation between pilot pin, positioning needle guard；
Described measurement bar assembly is installed on turnover panel, for detecting to brake drum to be detected；
Described Internal hole positioning assembly is installed on workbench, for positioning to brake drum endoporus to be detected.
As further improvement of the present invention, described measurement bar assembly includes dial gauge, dial gauge geometrical clamp, regulation
Guide rod, tie down screw, measuring staff pin, gauge stand and measurement bar, wherein: offer the measurement bar peace of vertical turnover panel end face in turnover panel side
Dress hole, this measurement bar is installed in the hole and is provided with gauge stand, and the shoulder in gauge stand passes through the bolt gauge stand set connected, described with turnover panel
It is contained in regulation guide rod periphery, and gauge stand is slidably connected with adjusting guide rod, offers screwed hole, tie down screw passes through on the upside of gauge stand
This screwed hole secured adjusted guide rod；The upper end of described regulation guide rod is provided with dial gauge geometrical clamp, and described dial gauge passes through
This dial gauge geometrical clamp is arranged on regulation guide rod；Offer through hole in the inside adjusting guide rod, in this through hole built with measurement
Bar, offers pin-and-hole at the middle part of measurement bar, and measuring staff pin makes the measurement bar measurement hinged, described with adjusting guide rod through this pin-and-hole
One end of bar is contacted with the contact of dial gauge, and the other end of measurement bar is arranged to l type and stretches out the lower end adjusting guide rod, and is surveying
The head at gauge rod l type end is provided with ball, and this ball is used for contacting with the braking surface of brake drum to be detected.
As further improvement of the present invention, described Internal hole positioning assembly includes positioning pin and Internal hole positioning post,
Wherein: one end of described positioning pin is provided with bearing, and Internal hole positioning column sleeve is contained on bearing outer ring；Open up on the table
There are the first location hole and the second location hole, the first described location hole and the second location hole are symmetrically distributed in the same of rolling support seat
On one diameter line, described positioning pin is arranged in the first location hole and the second location hole, and this positioning pin and the first positioning
Hole, the second positioning interporal lacuna cooperation, form detachable Internal hole positioning assembly.
As further improvement of the present invention, described regulation guide rod is also equipped with adjusting pin and spring pilot pin, institute
The adjusting pin stated is arranged on and adjusts the guide rod upper end side relative with dial gauge, and described spring pilot pin is arranged on regulation guide rod
Upper end and dial gauge identical side, spring pilot pin towards measurement bar one end equipped with spring, by adjusting spring pilot pin
Change the pressure to measurement bar for the spring.
As further improvement of the present invention, described turnover panel is located on the end face of prelocalization plate one end equipped with handle；
Equipped with butterfly, this butterfly both sides forms a knuckle, knuckle side for the upper surface of this turnover panel and rear position plate hinged end
It is connected on turnover panel by screw, and knuckle summit is in the same plane with the lateral surface of rear position plate.
As further improvement of the present invention, described rolling support seat includes end face and rolls seat, steel ball and roll bottom
Seat, described Rolling base is located at the upper surface center of workbench, and by bolt, Rolling base is fixed on the table,
Described end face rolls on the downside of seat and the upside of Rolling base is designed with annular groove, in this annular groove built with steel ball, uses
Roll the central axis around Rolling base for the seat in making end face.
3. beneficial effect
The technical scheme being provided using the present invention, compared with prior art, is had the advantages that
(1) a kind of coaxiality detecting method for dissimilar brake drum of the present invention, the measurement in measurement bar assembly
Bar one end is contacted with brake drum braking surface, and the other end is contacted with dial gauge, by being braked brake drum using lever construction principle
Face axiality detection data value shows on dial gauge, and structure is simple, and accuracy of detection is high, and use cost is low；Measured by adjusting
Bar assembly and change the Internal hole positioning post of various outer diameter size the brake drum of dissimilar size can be detected it is achieved that polymorphic type system
The universal measurement of dynamic drum.
(2) a kind of coaxiality detecting method for dissimilar brake drum of the present invention, Internal hole positioning assembly is installed on
It is symmetrically distributed in the first location hole and the second location hole on same RADIAL, and the Internal hole positioning post in Internal hole positioning assembly
Rotation detection can be met and requires, so that brake drum to be detected is positioned in radial direction, further increase around positioning pin rotation
Accuracy of detection；
(3) a kind of coaxiality detecting method for dissimilar brake drum of the present invention, rolls the annular of seat in end face
Groove, built with steel ball, makes end face roll the central axis around Rolling base for the seat, and can be directly from the dial gauge turnover panel
Observation value changes, and is easy to measure；
(4) a kind of coaxiality detecting method for dissimilar brake drum of the present invention is simple due to adopting during measurement
Lever principle, pilot pin and positioning needle guard cooperation positioning, and using two Internal hole positioning post assemblies being radially arranged to braking
Drum is positioned, and can carry out on-line checking to brake drum easily and fast, and accuracy of detection is high, simple to operate, low cost,
It is easy to promote the use of.
Brief description
Fig. 1 is the main structure diagram of the axiality detection device for dissimilar brake drum in the present invention；
Fig. 2 is the overlooking the structure diagram of the axiality detection device for dissimilar brake drum in the present invention；
Fig. 3 is the structural representation of d-d direction section view in Fig. 2；
Fig. 4 is the structural representation of rolling support seat in the present invention.
Label declaration in schematic diagram: 1, workbench；2nd, rolling support seat；201st, end face rolls seat；202nd, steel ball；203、
Rolling base；3rd, position pin；4th, Internal hole positioning post；5th, prelocalization plate；6th, pilot pin；7th, handle；8th, turnover panel；9th, measurement bar is total
Become；901st, dial gauge；902nd, dial gauge geometrical clamp；903rd, adjust guide rod；904th, adjusting pin；905th, tie down screw；906th, measuring staff
Pin；907th, gauge stand；908th, measurement bar；909th, spring；910th, spring pilot pin；10th, butterfly；11st, rear position plate.
Specific embodiment
For further appreciating that present disclosure, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment 1
In conjunction with Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a kind of axiality detection dress for dissimilar brake drum of the present embodiment
Put, be mainly made up of workbench 1, rolling support seat 2, Internal hole positioning assembly, turnover panel 8 and measurement bar assembly 9 etc., such as Fig. 1 is this
The structural representation being placed with brake drum of embodiment, in the center of workbench 1 equipped with rolling support seat 2, for making when detecting
Brake drum can be freely rotatable, is arranged with prelocalization plate 5 and rear position plate 11 in parallel in the both sides of workbench 1, and described is rear fixed
The top of position plate 11 is hinged with one end of turnover panel 8, and is provided with butterfly 10 in this hinged end, and this butterfly 10 both sides is formed
One knuckle, knuckle side is connected on turnover panel 8 by screw, and knuckle summit is generally aligned in the same plane with the lateral surface of rear position plate 11
On, for limiting the position of rotation of turnover panel 8；The other end of turnover panel 8 equipped with pilot pin 6, the upper end of described prelocalization plate 5 equipped with
Positioning needle guard, turnover panel 8 and prelocalization plate 5 are located by connecting by the cooperation between pilot pin 6, positioning needle guard, can be quick
Turnover panel is positioned, it is to avoid during detection, measurement bar assembly shakes.Operate for convenience, be located at prelocalization in turnover panel 8
It is also equipped with handle 7 on the end face of plate 5 one end, be favorably improved detection efficiency.
Measurement bar assembly 9 in the present embodiment is installed on (as Fig. 3) on turnover panel 8, for carrying out to brake drum to be detected
Detection.This measurement bar assembly 9 includes dial gauge 901, dial gauge geometrical clamp 902, adjusts guide rod 903, tie down screw 905, measuring staff
Pin 906, gauge stand 907 and measurement bar 908, offer the measurement bar installing hole of vertical turnover panel 8 end face, this measurement in turnover panel 8 side
Bar is installed in the hole and is provided with gauge stand 907, and the shoulder in gauge stand 907 passes through bolt and turnover panel 8 is connected, 907 sets of described gauge stand
It is contained in regulation guide rod 903 periphery, and gauge stand 907 is slidably connected with adjusting guide rod 903, can adjust guide rod 903 by adjustment
Highly the braking surface of diverse location in brake drum is detected.Additionally, being further opened with screwed hole on the upside of gauge stand 907, locking
Screw rod 905 passes through this screwed hole secured adjusted guide rod 903；In the upper end adjusting guide rod 903, dial gauge geometrical clamp 902 is installed,
Described dial gauge 901 is arranged on regulation guide rod 903 by this dial gauge geometrical clamp 902, for display measurement change.Adjusting
The inside of section guide rod 903 offers through hole, in this through hole built with measurement bar 908, offers pin at the middle part of measurement bar 908
Hole, measuring staff pin 906 makes measurement bar 908 hinged with regulation guide rod 903 through this pin-and-hole, forms lever construction.The one of measurement bar 908
End is contacted with the contact of dial gauge 901, and the other end of measurement bar 908 is arranged to l type and stretches out the lower end adjusting guide rod 903, and
Head at measurement bar 908l type end is provided with ball, and this ball is used for connecting with the braking surface of brake drum to be detected
Touch, to increase accuracy of detection.
Adjusting pin 904 and spring pilot pin 910 are also equipped with above-mentioned regulation guide rod 903, adjusting pin 904 is arranged on regulation
The guide rod 903 upper end side relative with dial gauge 901, for limiting the rotating range of measurement bar 908；Spring pilot pin 910 is pacified
Be contained in regulation guide rod 903 upper end and dial gauge 901 identical side, spring pilot pin 910 towards measurement bar 908 one end equipped with
Spring 909, changes spring 909 to the pressure of measurement bar 908 it is ensured that ball and measurement by adjusting spring pilot pin 910
Face is fully contacted it is ensured that certainty of measurement.
Measurement bar assembly 9 is one of key technology of the present embodiment, and regulation guide rod 903 therein passes through dial gauge geometrical clamp
902 connection dial gauges 901, measurement bar 908 can rotate around measuring staff pin 906 in adjusting guide rod 903 endoporus and form lever, will beat
Opposite side is arrived in change reflection.Adjusting pin 904 limits the rotating range of measurement bar 908, controls measurement position by tie down screw 905
Highly, so that measurement bar 908 is in the bulging detection faces of correct position detection braking；The spring pilot pin 910 adjusting on guide rod 903 is pressed
Tight spring 909, can be accurately by brake drum inner surface it is ensured that the necessary pressure of measurement bar 908 is it is ensured that check numerical value accurately and reliably
Beating and be reflected on the dial gauge being fixed on turnover panel 8 in hole, easily observes.
Internal hole positioning assembly in the present embodiment is installed on workbench 1, for carrying out to brake drum endoporus to be detected
Positioning.This Internal hole positioning assembly, by positioning pin 3 and Internal hole positioning post 4 forms, is provided with bearing in one end of positioning pin 3,
Internal hole positioning post 4 is sleeved on bearing outer ring；In order to by Internal hole positioning assembly dress and workbench, workbench 1 offer
First location hole and the second location hole, and the first location hole and the second location hole be symmetrically distributed in rolling support seat 2 same always
On radial line, described positioning pin 3 is arranged in the first location hole and the second location hole, utilizes interior on same diameter line during positioning
Hole locating dowel 4 makes brake drum cannot rock the positioning precision it is ensured that when detecting.Additionally, positioning pin 3 and the first location hole,
Second positioning interporal lacuna cooperation it is ensured that facilitating the dismounting of Internal hole positioning assembly while precision, by changing various outer diameter size
Internal hole positioning post 4 brake drum of different model size can be detected it is achieved that the universal measurement of polymorphic type brake drum.
Rolling support seat 2 in the present embodiment includes end face and rolls seat 201, steel ball 202 and Rolling base 203 (as Fig. 4),
Described Rolling base 203 is located at the upper surface center of workbench 1, and by bolt, Rolling base 203 is fixed on work
On platform 1, end face rolls seat 201 downside and the upside of Rolling base 203 and is designed with annular groove, in this annular groove built with steel
Ball 202, for making end face roll the central axis around Rolling base 203 for the seat 201, meets detection and requires.
Carry out detecting the detection method of explanation axiality from a brake drum in the present embodiment, the steps include:
Step one, detection prepare: lift the handle 7 of the axiality detection device for dissimilar brake drum, it is fixed to drive
Position pin 6 is separated with positioning needle guard, so that turnover panel 8 is rotated around pin joint simultaneously, and limits position of rotation by butterfly 10；
Step 2, brake drum positioning: the brake drum needing detection is placed on rolling support seat 2, according to brake drum internal diameter
Size selects Internal hole positioning assembly, by positioning pin 3, Internal hole positioning assembly is installed on the first location hole and the second location hole
In, and so that the periphery of two Internal hole positioning posts 4 is all contacted with the inner headed face of brake drum, constitute radial positioning；
Step 3, measurement bar assembly 9 is positioned: lift handle 7, make turnover panel 8 return back to horizontal level around pin joint, and really
Protect pilot pin 6 with positioning needle guard cooperation closely, so that measurement bar assembly 9 is located at vertical direction and cannot rock；
Step 4, regulation measurement bar 908: the position height of brake drum measured by first determining, and will by tie down screw 905
The regulation guide rod 903 adjusting height is locked, by changing the depth limit measurement bar of adjusting pin 904 and spring pilot pin 910
908 slewing area, makes the contact of measurement bar 908 and brake drum braking surface endoporus be in close contact；
Step 5, complete detect: rotation brake drum, make brake drum end face roll seat 201 on rotate, observe dial gauge
901 numerical value change, draws testing result by data analysis, takes out brake drum, carries out next round detection.
After completing one-shot measurement, the brake drum for same type can be directly placed in the detection means of the present embodiment
Multiple height and positions, in order to improve accuracy of detection further, can be detected by row detection with the use of tie down screw 905,
Diverse location is carried out with detection and can reflect workpiece quality on the whole.
A kind of Chinese Patent Application No.: the entitled skill of brake drum total run-out cubing of 201320001194.8 inventions disclosed
Art scheme, the bearing that the program is passed through on conical external circle is positioned with the bearing outer ring cooperation in wheel hub, lever indicator detection system
Dynamic drum braking surface is beated, due to being the whole brake drum wheel hub after assembling with the result of the bearing outer ring detection and localization in wheel hub
The braking surface axiality of assembly, wherein influence factor have bearing outer ring and the cooperation of wheel hub and an accuracy of manufacture of single-piece, wheel hub with
The cooperation of brake drum and the accuracy of manufacture of single-piece；Its dial gauge connecting rod is connected by screw in compression, and is in vacant state,
When using, dial gauge stress easily loosens, and affects certainty of measurement；Additionally, the dial indicator measuring head of this device must stretch into braking
Drum is internal just to be completed to detect, lead to measured value to be difficult to observe.And the present embodiment is provided for dissimilar brake drum
Axiality detection device, measurement bar 908 one end in measurement bar assembly 9 is contacted with brake drum braking surface, the other end and dial gauge
901 contacts, by brake drum braking surface axiality detection data value being shown on dial gauge 901 using lever construction principle,
Structure is simple, accuracy of detection high it is achieved that the universal measurement of polymorphic type brake drum, and convenient reading, use cost is low.Using
The coaxiality detecting method of the present embodiment, during measurement, brake drum is placed in the detection means of the present embodiment, due to brake drum
Positioning and contact site adopt bearing box rolling supporting structure, only need to easily can be manually rotated brake drum during detection, both can be by turning over
Measurement bar assembly 9 on plate 8 accurately and conveniently measures brake drum braking coaxiality of inner hole, and for the detection of same type brake drum
Shi Wuxu repeats to correct adjusting pin 904.The method can carry out on-line checking to brake drum easily and fast, and accuracy of detection
Height, simple to operate, low cost, it is easy to promote the use of.
Below schematically the present invention and embodiments thereof are described, this description does not have restricted, institute in accompanying drawing
Show is also one of embodiments of the present invention, and actual structure is not limited thereto.So, if the common skill of this area
Art personnel enlightened by it, in the case of without departing from the invention objective, designs and this technical scheme without creative
Similar frame mode and embodiment, all should belong to protection scope of the present invention.
Claims (7)
1. a kind of coaxiality detecting method for dissimilar brake drum it is characterised in that: using a kind of for dissimilar
The axiality detection device of brake drum completes to detect, this axiality detection device includes workbench (1), rolling support seat (2), interior
Hole locating assembly, turnover panel (8) and measurement bar assembly (9), the center of described workbench (1) equipped with rolling support seat (2),
The both sides of workbench (1) are arranged with prelocalization plate (5) and rear position plate (11) in parallel, the described top of rear position plate (11) with
One end of turnover panel (8) is hinged, and equipped with pilot pin (6), the upper end of described prelocalization plate (5) is equipped with fixed for the other end of turnover panel (8)
Position needle guard, turnover panel (8) and prelocalization plate (5) are located by connecting by the cooperation between pilot pin (6), positioning needle guard；Described
Measurement bar assembly (9) be installed on turnover panel (8), for detecting to brake drum to be detected；Described Internal hole positioning is total
Become to be installed on workbench (1), for positioning to brake drum endoporus to be detected；The steps include:
Step one, detection prepare:
Lift the handle (7) of the axiality detection device for dissimilar brake drum, drive pilot pin (6) to divide with positioning needle guard
From, so that turnover panel (8) is rotated around pin joint simultaneously, and by butterfly (10) restriction position of rotation；
Step 2, brake drum positioning:
The brake drum needing detection is placed on rolling support seat (2), Internal hole positioning assembly is selected according to brake drum internal diameter size,
By positioning pin (3), Internal hole positioning assembly is installed in the first location hole and the second location hole, and makes two endoporus fixed
The periphery of position post (4) is all contacted with the inner headed face of brake drum, constitutes radial positioning；
Step 3, to measurement bar assembly (9) position:
Lift handle (7), make turnover panel (8) return back to horizontal level around pin joint, and guarantee pilot pin (6) and positioning needle guard cooperation
Closely, measurement bar assembly (9) is made to be located at vertical direction and cannot rock；
Step 4, regulation measurement bar (908):
By changing the slewing area of the depth limit measurement bar (908) of adjusting pin (904) and spring pilot pin (910), make survey
The contact of gauge rod (908) is in close contact with brake drum braking surface endoporus；
Step 5, complete detect:
Rotation brake rouses, and seat (201) is upper to be rotated so that brake drum is rolled in end face, and the numerical value change of observation dial gauge (901) is passed through
Data analysis draws testing result, takes out brake drum, carries out next round detection.
2. a kind of coaxiality detecting method for dissimilar brake drum according to claim 1 it is characterised in that: institute
The step 4 stated also includes by tie down screw (905), the height adjusting guide rod (903) being adjusted.
3. a kind of coaxiality detecting method for dissimilar brake drum according to claim 2 it is characterised in that: institute
The measurement bar assembly (9) stated includes dial gauge (901), dial gauge geometrical clamp (902), adjusts guide rod (903), tie down screw
(905), measuring staff pin (906), gauge stand (907) and measurement bar (908), wherein: offer vertical turnover panel (8) in turnover panel (8) side
The measurement bar installing hole of end face, this measurement bar is installed in the hole and is provided with gauge stand (907), and the shoulder in gauge stand (907) passes through spiral shell
Bolt is connected with turnover panel (8), and described gauge stand (907) is sleeved on regulation guide rod (903) periphery, and gauge stand (907) and regulation guide rod
(903) it is slidably connected, offers screwed hole on the upside of gauge stand (907), tie down screw (905) is led by this screwed hole secured adjusted
Bar (903)；The upper end of described regulation guide rod (903) is provided with dial gauge geometrical clamp (902), and described dial gauge (901) leads to
Cross this dial gauge geometrical clamp (902) to be arranged in regulation guide rod (903)；Offer through hole in the inside adjusting guide rod (903),
This through hole, built with measurement bar (908), offers pin-and-hole at the middle part of measurement bar (908), and measuring staff pin (906) makes through this pin-and-hole
Measurement bar (908) is hinged with regulation guide rod (903), and described one end of measurement bar (908) is connected with the contact of dial gauge (901)
Touch, the other end of measurement bar (908) is arranged to l type and stretches out the lower end adjusting guide rod (903), and at measurement bar (908) l type end
Head is provided with ball, and this ball is used for contacting with the braking surface of brake drum to be detected.
4. a kind of coaxiality detecting method for dissimilar brake drum according to claim 2 it is characterised in that: institute
The Internal hole positioning assembly stated includes positioning pin (3) and Internal hole positioning post (4), wherein: one end peace of described positioning pin (3)
Equipped with bearing, Internal hole positioning post (4) is sleeved on bearing outer ring；First location hole and second is offered on workbench (1) determine
Position hole, the first described location hole and the second location hole are symmetrically distributed on the same diameter line of rolling support seat (2), described fixed
Position pin (3) is arranged in the first location hole and the second location hole, and this positioning pin (3) and the first location hole, the second positioning
Interporal lacuna coordinates, and forms detachable Internal hole positioning assembly.
5. a kind of coaxiality detecting method for dissimilar brake drum according to claim 3 it is characterised in that: institute
Adjusting pin (904) and spring pilot pin (910) are also equipped with the regulation guide rod (903) stated, described adjusting pin (904) is arranged on
Adjust guide rod (903) the upper end side relative with dial gauge (901), described spring pilot pin (910) is arranged on regulation guide rod
(903) upper end and dial gauge (901) identical side, spring pilot pin (910) towards measurement bar (908) one end equipped with spring
(909), change the pressure to measurement bar (908) for the spring (909) by adjusting spring pilot pin (910).
6. a kind of coaxiality detecting method for dissimilar brake drum according to claim 5 it is characterised in that: institute
The turnover panel (8) stated is located on the end face of prelocalization plate (5) one end equipped with handle (7)；This turnover panel (8) is hinged with rear position plate (11)
The upper surface at end forms a knuckle equipped with butterfly (10), this butterfly (10) both sides, and knuckle side is passed through screw and is connected
On turnover panel (8), and knuckle summit is in the same plane with the lateral surface of rear position plate (11).
7. a kind of coaxiality detecting method for dissimilar brake drum according to claim 6 it is characterised in that: institute
The rolling support seat (2) stated includes end face and rolls seat (201), steel ball (202) and Rolling base (203), described Rolling base
(203) it is located at the upper surface center of workbench (1), and by bolt, Rolling base (203) is fixed on workbench (1),
Described end face rolls on the downside of seat (201) and the upside of Rolling base (203) is designed with annular groove, built-in in this annular groove
There is steel ball (202), be used for making end face roll the central axis around Rolling base (203) for the seat (201).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410691183.6A CN104359386B (en) | 2014-11-26 | 2014-11-26 | Coaxiality detecting method used for different types of drum brakes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410691183.6A CN104359386B (en) | 2014-11-26 | 2014-11-26 | Coaxiality detecting method used for different types of drum brakes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104359386A CN104359386A (en) | 2015-02-18 |
| CN104359386B true CN104359386B (en) | 2017-01-25 |
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| CN201410691183.6A Active CN104359386B (en) | 2014-11-26 | 2014-11-26 | Coaxiality detecting method used for different types of drum brakes |
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| CN109238099B (en) * | 2018-10-16 | 2019-07-02 | 浙江旺盛动力机电有限公司 | A kind of ball seat inside dimension measuring device |
| CN113188401A (en) * | 2021-04-25 | 2021-07-30 | 宁波沃特汽车部件有限公司 | Automobile chassis part roundness detection device and detection process thereof |
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| CN201277983Y (en) * | 2008-10-27 | 2009-07-22 | 深圳华为通信技术有限公司 | Pressing lifting integrated manual veneer fixture |
| CN202547527U (en) * | 2011-12-02 | 2012-11-21 | 青特集团有限公司 | Testing fixture for testing run-out of brake disc assembly |
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| CN203629493U (en) * | 2013-12-20 | 2014-06-04 | 山东华瑞丰机械有限公司 | Brake and brake drum beating integrated fixture |
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| US20080189971A1 (en) * | 2007-02-14 | 2008-08-14 | Lin Wo | Electronic disc and drum brake gauge |
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| CN202547527U (en) * | 2011-12-02 | 2012-11-21 | 青特集团有限公司 | Testing fixture for testing run-out of brake disc assembly |
| CN203037174U (en) * | 2013-01-05 | 2013-07-03 | 溧阳市虹翔机械制造有限公司 | Run-out detection tool for brake drum brake surface |
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