CN205244206U - Brake caliper piston - Google Patents
Brake caliper piston Download PDFInfo
- Publication number
- CN205244206U CN205244206U CN201521115570.1U CN201521115570U CN205244206U CN 205244206 U CN205244206 U CN 205244206U CN 201521115570 U CN201521115570 U CN 201521115570U CN 205244206 U CN205244206 U CN 205244206U
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- CN
- China
- Prior art keywords
- brake caliper
- caliper piston
- arc chord
- chord angle
- lateral surface
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Abstract
The utility model provides a brake caliper piston belongs to engineering technical field. It has solved current with high costs, the big scheduling problem of intensity of labour of brake caliper piston burring. It has many the recesses along the radial setting of piston to open on this brake caliper piston's the head terminal surface, adopts the transition of first arc chord angle between recess side and the brake caliper piston lateral surface. Brake caliper piston adds needs car blank excircle man -hour, and allowance can be reserved to the blank, has to link to each other and allowance straightway the same basically with first arc chord angle in the blank. Behind the blank cylindrical turning, the cutter fillet is tangent with first arc chord angle, and the smear metal will be split at first arc chord angle deal with basically, even residual part under the cutter knife tip fillet also can be at the narrow and small position of cutter fillet with the first arc chord angle of work piece surface, the burr that thickness is very thin is rolled into in the cutting back, and the burr very easily drops after subsequent grinding process, in other words avoids the burr to produce effectively.
Description
Technical field
The utility model belongs to technical field of engineering components, relates to a kind of brake caliper, spyIt not a kind of brake caliper piston.
Background technology
Brake caliper is one of brakes core component, and brake caliper is widely used inIn vehicle, produce brake force, braking by interacting between brake caliper and brake discClamp are fixed on the framework of vehicle conventionally, and brake disc is fixed on wheel. Brake caliper comprisesPiston and brake pad, it slides under the fluid effect of pressurized in bearing, and then pushes awayMoving brake pad and brake disc produce brake force with friction mode. About the phase of brake caliperClose the brake caliper (Granted publication number that document is recorded as Chinese patent literatureCN101595324B)。
In piston machining process, require piston face not allow jagged, if piston faceJagged, cause burr to contact with cylinder bore, by cylinder bore plucking, cause oilThe inordinate wear of cylinder endoporus and leakage of oil is broken down car brakeing, causes traffic accident. OrderSecondary piston producer all adopts the biographies such as manual deburring, electrochemical deburring or chemical deburringThe deburring of system mode, exists the problems such as production cost is high, labour intensity is large.
Summary of the invention
The utility model proposes a kind of brake caliper piston, to be solved in the utility modelTechnical problem is the burr of how removing on brake caliper piston.
The technical problem that will solve of the present utility model can be come by following technical proposal realExisting: in the head end of this brake caliper piston, to have many arrange along piston radial recessedGroove, adopts the first arc chord angle transition between groove side and brake caliper piston lateral surface.
The blank of brake caliper piston adopts cold extrusion shaped, groove and the first arc chord angleSynchronous forming in the time that blank is cold extrusion shaped. In other words, the first arc chord angle is applicable to adopting coldExtrusion modling, ensures the first arc chord angle ease of processing, reduces production costs.
When brake caliper Piston Machining, need car blank cylindrical, blank can be reserved allowance,In blank, have and be connected with the first arc chord angle and the essentially identical straightway of allowance.After blank cylindrical turning, cutter fillet and the first arc chord angle are tangent, and smear metal substantially will beThe fracture of the first arc chord angle place; Even if residual fraction under cutter point of a knife fillet, also can be at cutterThe narrow and small position on fillet and workpiece the first arc chord angle surface, is rolled into thickness very after cuttingThin burr, after follow-up grinding process, burr very easily comes off; In other words, effectivelyAvoid burr to produce.
In above-mentioned brake caliper piston, the head lateral surface of described brake caliper pistonOn have padding-installing slot, the lateral surface of the side of padding-installing slot and brake caliper pistonBetween adopt the second arc chord angle transition. Padding-installing slot is at blank cylindrical turning operation and millBetween cylindrical operation, process, the second arc chord angle cuts groove at padding-installing slot and completes laggardOK. Because grinding allowance is little, be difficult for producing burr; And owing to there being second arc chord angleExist, in the time of following process, assembling, be also difficult for producing burr because of bump injury.
In above-mentioned brake caliper piston, the bottom end face of described brake caliper piston withBetween lateral surface, there is installation inclined-plane, install between inclined-plane and bottom end face and lateral surface equalAdopt the transition of three-arc angle. Owing to there being the existence at three-arc angle, following process,When assembling, be also difficult for producing burr because of bump injury.
Compared with prior art, this brake caliper piston has processing and is difficult for producing burr,Even if the burr producing also very easily comes off, burr is very easily removed.
This brake caliper piston also has advantages of that the bump injury of avoiding produces burr.
Brief description of the drawings
Fig. 1 is the sectional structure schematic diagram of this brake caliper piston.
Fig. 2 is this brake caliper piston crown end face visual angle structural representation.
In figure, 1, lateral surface; 2, head end; 3, bottom end face; 4, groove; 5,Padding-installing slot; 6, inclined-plane is installed; 7, the first arc chord angle; 8, the second arc chord angle; 9,Three-arc angle.
Detailed description of the invention
Below specific embodiment of the utility model by reference to the accompanying drawings, to the utility modelTechnical scheme be further described, but the utility model is not limited to these embodiment.
As depicted in figs. 1 and 2, this brake caliper piston is cylindric, this brake caliperPiston has lateral surface 1, head end 2 and bottom end face 3. In head end 2, haveMany the grooves 4 that arrange along piston radial, the quantity that Figure of description provides groove 4 isArticle three. On the lateral surface 1 of head, have padding-installing slot 5. Bottom end face 3 and outsideBetween face 1, there is the inclined-plane 6 of installation.
As shown in Figure 2, between two of groove 4 sides and lateral surface 1, all adopt firstArc chord angle 7 transition. The radius of the first arc chord angle 7 is 1.5～2.5mm.
As shown in Figure 1, between two of padding-installing slot 5 sides and lateral surface 1, all adoptWith the second arc chord angle 8 transition. The radius of the second arc chord angle 8 is 0.4～0.6mm.
As shown in Figure 1, install between inclined-plane 6 and bottom end face 3 and lateral surface 1 and all adoptWith 9 transition of three-arc angle. Three-arc angle between inclined-plane 6 and bottom end face 3 is installed9 radius is 0.8～1.2mm. Three-arc angle between inclined-plane 6 and lateral surface 1 is installed9 radius is 1.5～2.5mm.
Claims (7)
1. a brake caliper piston, opens in the head end (2) of brake caliper pistonThere are many grooves (4) that arrange along brake caliper piston radial, it is characterized in that, described inBetween the lateral surface (1) of groove (4) side and brake caliper piston, adopt the first circular arcAngle (7) transition.
2. brake caliper piston according to claim 1, is characterized in that, described inThe radius of the first arc chord angle (7) is 1.5～2.5 ㎜.
3. brake caliper piston according to claim 1 and 2, is characterized in that,On the head lateral surface (1) of described brake caliper piston, have padding-installing slot (5), liningBetween the side of pad mounting groove (5) and the lateral surface (1) of brake caliper piston, adopt theTwo arc chord angles (8) transition.
4. brake caliper piston according to claim 3, is characterized in that, described inThe radius of the second arc chord angle (8) is 0.4～0.6 ㎜.
5. brake caliper piston according to claim 1 and 2, is characterized in that,Between the bottom end face (3) of described brake caliper piston and lateral surface (1), there is installationInclined-plane (6), installs between inclined-plane (6) and bottom end face (3) and lateral surface (1)All adopt three-arc angle (9) transition.
6. brake caliper piston according to claim 5, is characterized in that, described inThe radius that three-arc angle (9) between inclined-plane (6) and bottom end face (3) is installed is0.8～1.2㎜。
7. brake caliper piston according to claim 5, is characterized in that, described inThe radius at three-arc angle (9) be installed between inclined-plane (6) and lateral surface (1) be 1.5～2.5㎜。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521115570.1U CN205244206U (en) | 2015-12-29 | 2015-12-29 | Brake caliper piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521115570.1U CN205244206U (en) | 2015-12-29 | 2015-12-29 | Brake caliper piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205244206U true CN205244206U (en) | 2016-05-18 |
Family
ID=55943287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521115570.1U Active CN205244206U (en) | 2015-12-29 | 2015-12-29 | Brake caliper piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205244206U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106623751A (en) * | 2017-01-24 | 2017-05-10 | 江苏森威集团飞达股份有限公司 | EPB clamp forging method, forging equipment and forging blank thereof |
-
2015
- 2015-12-29 CN CN201521115570.1U patent/CN205244206U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106623751A (en) * | 2017-01-24 | 2017-05-10 | 江苏森威集团飞达股份有限公司 | EPB clamp forging method, forging equipment and forging blank thereof |
| CN106623751B (en) * | 2017-01-24 | 2019-07-12 | 江苏森威集团飞达股份有限公司 | A kind of EPB clamp forging method, forging equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |