CN101927364A - Tooling used for processing brake drum - Google Patents
Tooling used for processing brake drum Download PDFInfo
- Publication number
- CN101927364A CN101927364A CN2010102672753A CN201010267275A CN101927364A CN 101927364 A CN101927364 A CN 101927364A CN 2010102672753 A CN2010102672753 A CN 2010102672753A CN 201010267275 A CN201010267275 A CN 201010267275A CN 101927364 A CN101927364 A CN 101927364A
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- Prior art keywords
- brake drum
- sleeve
- hole
- frock
- shaft core
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Abstract
The invention relates to a tooling used for processing the brake drum. The tooling comprises a sleeve, a pump cap and a expansive force mandrel, wherein the shape of the cavity of the sleeve corresponds to the shape of a brake drum to be processed; the bottom center of the sleeve is provided with a hole, the expansive force mandrel passes through the hole; the pump cap is sleeved on the top open end of the sleeve in a demountable manner; the expansion part of the expansive force mandrel is arranged in the sleeve, the shape of the expansion part corresponds to the shape of the inner wall of a first hole at the bottom of the brake drum; and the center of the pump cap is provided with an opening, and the opening is larger than the open end of the processed brake drum. Through proofs, the technical scheme of the invention well solves the bottleneck problem for lathing the brake surface; and the entire production line has stable quality and yield.
Description
Technical field
The invention belongs to the part machinery manufacture field, specifically is a kind of frock that is used for used for processing brake drum.
Background technology
In the prior art, be automobile brake drum, in process, the beating of brake drum braking surface, cylindricity, fineness require all than higher (axial cross section schematic diagram such as Fig. 1 of brake drum, overall structure schematic diagram such as Fig. 5 of brake drum).With the brake drum among Fig. 1 is example, with reference to figure 2, adds man-hour, is holed in 2.3 liang of planes of base plate and first hole 1.1 of φ 142.5, the 1.2 processing backs, second hole of φ 210.05 of brake drum earlier, goes up common plug 2.5 processing braking surfaces again.
Chang Yinwei shakes cutter and causes that braking surface cylindricity, fineness are overproof in process; Also be difficult to guarantee with beating of datum hole A and datum level B; And in order to guarantee that 0.05 of braking surface and datum hole A beats, also must be with the φ 142.5 in 1.1 apertures, first hole
+ 0.3 -0.3Tolerance be controlled in 0.025 scope, the percent defective when having increased preceding working procedure, car two planes virtually again, and reduced the class output.This processing method percent defective is higher and class's output is low excessively, be badly in need of to improve.
Summary of the invention
In order to solve the above-mentioned problems in the prior art, the present invention proposes a kind of new frock, is used for the vehicle clamper of used for processing brake drum, and concrete technical scheme is as follows:
A kind of frock that is used for used for processing brake drum comprises sleeve, blend cap and tension plug, and the cavity shape of described sleeve is corresponding with the profile of processed brake drum; Bottom centre position at sleeve has the hole, and described tension plug is through in this hole; Described blend cap removably is enclosed within the openend at sleeve top;
The swelling part of described tension plug is in sleeve inner, and the profile of swelling part is corresponding with the first hole inner wall shape of processed brake drum bottom;
Be provided with opening in the middle of the described blend cap, opening is greater than the size of processed brake drum openend.
The bottom of described sleeve is provided with pin-and-hole, is provided with alignment pin in the pin-and-hole; The position of alignment pin is corresponding with the fabrication hole position at the bottom of the processed brake drum, and processed brake drum is packed into behind the sleeve, and alignment pin inserts described fabrication hole.
Described tension plug comprises elastic piston ring, outer cone locating shaft core and the inner cone elastic expansion-sleeve of coaxial setting; Described outer cone locating shaft core bottom is corresponding with the hole shape of the bottom centre position of described tube; Outer cone locating shaft core middle part is a taper type, and described inner cone elastic expansion-sleeve is enclosed within outside this taper type, and described elastic piston ring is enclosed within outside the inner cone elastic expansion-sleeve.
Described outer cone locating shaft core top is provided with double-screw bolt, and double-screw bolt is with lock nut outward.
Described outer cone locating shaft core also is provided with double-screw bolt behind the bottom, is used to connect lathe.
In the time of use, this frock is contained on the lathe, again workpiece to be machined is contained in this frock, process and get final product.Through demonstration, the fine bottleneck problem that solves the Vehicle Processing braking surface of the technical program, whole production line quality, stable yield.
Description of drawings
Fig. 1 is the axial cross section schematic diagram of brake drum;
Fig. 2 is in the prior art, the schematic diagram of brake drum clamp for machining;
Fig. 3 is in this example, the frock schematic diagram of used for processing brake drum;
Fig. 4 is in this example, tension mandrel structure explosive view;
Fig. 5 is the three-dimensional axial cross section schematic diagram of brake drum.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the technical program is described further.
As Fig. 3, a kind of frock that is used for used for processing brake drum comprises sleeve 3.1, blend cap 3.3 and tension plug 3.4, and the cavity shape of described sleeve 3.1 is corresponding with the profile of processed brake drum 3.2; Bottom centre position at sleeve 3.1 has the hole, and described tension plug 3.4 is through in this hole; Described blend cap 3.3 removably is enclosed within the openend at sleeve 3.1 tops;
The swelling part of described tension plug 3.4 is in sleeve 3.1 inside, and the profile of swelling part is corresponding with first hole, 1.1 inner wall shape of processed brake drum 3.2 bottoms;
Be provided with opening in the middle of the described blend cap 3.3, opening is greater than the size of processed brake drum 3.2 openends.
The bottom of described sleeve 3.1 is provided with pin-and-hole, is provided with alignment pin 3.5 in the pin-and-hole; The position of alignment pin 3.5. is corresponding with fabrication hole 1.3 positions at the bottom of the processed brake drum, and processed brake drum 3.2 is packed into behind the sleeve 3.1, and alignment pin 3.5 inserts described fabrication hole 1.3.
With reference to figure 4, described tension plug 3.4 comprises elastic piston ring 4.1, outer cone locating shaft core 4.2 and the inner cone elastic expansion-sleeve 4.3 of coaxial setting; Described outer cone locating shaft core 4.2 bottoms are corresponding with the hole shape of the bottom centre position of described tube; Outer cone locating shaft core 4.2 middle parts are taper types, and described inner cone elastic expansion-sleeve 4.3 is enclosed within outside this taper type, and described elastic piston ring 4.1 is enclosed within outside the inner cone elastic expansion-sleeve.
Described outer cone locating shaft core top is provided with double-screw bolt, and double-screw bolt is with lock nut 4.4 outward.
Described outer cone locating shaft core also is provided with double-screw bolt behind the bottom, is used to connect lathe.
The technical program sleeve in conjunction with the tension plug, with the tension plug, blend cap, disposable braking surface, datum hole A and the datum level B of machining guaranteed that effectively braking surface and datum hole A and datum level B must beat.And blend cap 3 locking points have avoided generation of vibration at the brake drum port surface, make the cylindricity of braking surface, fineness all reach requirement.And preceding road boring φ 210.05 hole tolerances need not to be controlled in 0.025 scope.
Claims (5)
1. the frock of a used for processing brake drum is characterized in that comprising sleeve, blend cap and tension plug, and the cavity shape of described sleeve is corresponding with the profile of processed brake drum; Bottom centre position at sleeve has the hole, and described tension plug is through in this hole; Described blend cap removably is enclosed within the openend at sleeve top;
The swelling part of described tension plug is in sleeve inner, and the profile of swelling part is corresponding with the first hole inner wall shape of processed brake drum bottom;
Be provided with opening in the middle of the described blend cap, opening is greater than the size of processed brake drum openend.
2. the frock of used for processing brake drum according to claim 1 is characterized in that the bottom of described sleeve is provided with pin-and-hole, is provided with alignment pin in the pin-and-hole; The position of alignment pin is corresponding with the fabrication hole position at the bottom of the processed brake drum, and processed brake drum is packed into behind the sleeve, and alignment pin inserts described fabrication hole.
3. the frock of used for processing brake drum according to claim 1 and 2 is characterized in that described tension plug comprises the elastic piston ring of coaxial setting, outer cone locating shaft core and inner cone elastic expansion-sleeve; Described outer cone locating shaft core bottom is corresponding with the hole shape of the bottom centre position of described tube; Outer cone locating shaft core middle part is a taper type, and described inner cone elastic expansion-sleeve is enclosed within outside this taper type, and described elastic piston ring is enclosed within outside the inner cone elastic expansion-sleeve.
4. the frock of used for processing brake drum according to claim 3 is characterized in that described outer cone locating shaft core top is provided with double-screw bolt, and double-screw bolt is with lock nut outward.
5. the frock of used for processing brake drum according to claim 4 is characterized in that also being provided with double-screw bolt behind the described outer cone locating shaft core bottom, is used to connect lathe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102672753A CN101927364A (en) | 2010-08-31 | 2010-08-31 | Tooling used for processing brake drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102672753A CN101927364A (en) | 2010-08-31 | 2010-08-31 | Tooling used for processing brake drum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101927364A true CN101927364A (en) | 2010-12-29 |
Family
ID=43366942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102672753A Pending CN101927364A (en) | 2010-08-31 | 2010-08-31 | Tooling used for processing brake drum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101927364A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103192096A (en) * | 2013-04-02 | 2013-07-10 | 苏州新和机械有限公司 | Lathe prepressing mechanism |
| CN110090968A (en) * | 2019-05-07 | 2019-08-06 | 盛瑞传动股份有限公司 | A kind of brake drum process for machining |
| CN110340378A (en) * | 2019-07-01 | 2019-10-18 | 昌河飞机工业（集团）有限责任公司 | The processing method of the thin wall slewing parts of aluminium alloy major diameter |
| CN110405507A (en) * | 2019-08-13 | 2019-11-05 | 浙江金汤机床有限公司 | Automotive brake cnc lathe |
| CN111059175A (en) * | 2019-12-10 | 2020-04-24 | 一汽解放汽车有限公司 | Machining method of drum brake and drum brake |
| CN112276153A (en) * | 2020-10-30 | 2021-01-29 | 中国航发南方工业有限公司 | Method for processing multi-level hole site for precision device |
-
2010
- 2010-08-31 CN CN2010102672753A patent/CN101927364A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103192096A (en) * | 2013-04-02 | 2013-07-10 | 苏州新和机械有限公司 | Lathe prepressing mechanism |
| CN110090968A (en) * | 2019-05-07 | 2019-08-06 | 盛瑞传动股份有限公司 | A kind of brake drum process for machining |
| CN110340378A (en) * | 2019-07-01 | 2019-10-18 | 昌河飞机工业（集团）有限责任公司 | The processing method of the thin wall slewing parts of aluminium alloy major diameter |
| CN110340378B (en) * | 2019-07-01 | 2020-11-24 | 昌河飞机工业（集团）有限责任公司 | Processing method of aluminum alloy large-diameter thin-wall rotary part |
| CN110405507A (en) * | 2019-08-13 | 2019-11-05 | 浙江金汤机床有限公司 | Automotive brake cnc lathe |
| CN111059175A (en) * | 2019-12-10 | 2020-04-24 | 一汽解放汽车有限公司 | Machining method of drum brake and drum brake |
| CN111059175B (en) * | 2019-12-10 | 2021-06-01 | 一汽解放汽车有限公司 | Machining method of drum brake and drum brake |
| CN112276153A (en) * | 2020-10-30 | 2021-01-29 | 中国航发南方工业有限公司 | Method for processing multi-level hole site for precision device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101229 |