CN112317826A - Clamp tool for machining brake shoe shaft sleeve hole and roller hole end face - Google Patents
Clamp tool for machining brake shoe shaft sleeve hole and roller hole end face Download PDFInfo
- Publication number
- CN112317826A CN112317826A CN202011265554.6A CN202011265554A CN112317826A CN 112317826 A CN112317826 A CN 112317826A CN 202011265554 A CN202011265554 A CN 202011265554A CN 112317826 A CN112317826 A CN 112317826A
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- China
- Prior art keywords
- brake shoe
- hole
- shaft sleeve
- machining
- workpiece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003754 machining Methods 0.000 title claims abstract description 27
- 238000003825 pressing Methods 0.000 claims abstract description 18
- 238000003801 milling Methods 0.000 claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C9/00—Details or accessories so far as specially adapted to milling machines or cutter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention relates to a fixture tool for machining a brake shoe shaft sleeve hole and an end face of a roller hole, relates to a fixture tool, particularly relates to a fixture tool for machining a brake shoe shaft sleeve hole and an end face of a roller hole, and belongs to the technical field of brake shoe production and machining. Comprises a fixed seat; the surface of the fixed seat is provided with a positioning table; a pressing component is arranged on the other side of the surface of the fixed seat, which is opposite to the positioning table; a workpiece supporting table is arranged between the positioning table and the pressing assembly; one end of a shaft sleeve hole of the brake shoe workpiece is abutted against the positioning table. The invention is designed aiming at the characteristics of the structure and the shape of a brake shoe workpiece and the motion trail of a milling cutter machine tool in the processing of the end surfaces of a shaft sleeve hole and a roller hole. The brake shoe workpiece is limited through the working supporting table, so that the brake shoe workpiece is ensured to be in an accurate machining position, and meanwhile, the brake shoe workpiece is fixed in the vertical direction through the pressing assembly and the positioning table, so that the workpiece is finally stable to be placed in a station for subsequent machining.
Description
Technical Field
The invention relates to a fixture tool, in particular to a fixture tool for machining a brake shoe shaft sleeve hole and an end face of a roller hole, and belongs to the technical field of brake shoe production and machining.
Background
The brake shoe is a part which is pushed outwards by the action of a brake cam or a push rod to expand and press a brake drum to play a braking role, is arranged on the brake drum, and is one of key safety parts in an automobile braking system. The shape of the brake shoe is half-moon-shaped, and when a brake is stepped on, the two half-moon-shaped brake shoes are outwards expanded under the action of the brake wheel cylinder to support the brake shoes to rub the inner wall of the brake drum to play a role in speed reduction or parking. The brake drum is a kind of iron casting shaped like a tambourine, which is fixed with the tyre and rotates at the same speed. During braking, the Brake Shoes (Brake Shoes) are pushed by hydraulic pressure to contact the inner edge of the Brake drum, and the friction force generated by the contact is used to restrain the rotation of the tire so as to achieve the purpose of braking. The drum brake is composed of brake bottom plate, brake cylinder, brake shoe, spring, pin and brake drum. Currently only commonly adopted for rear wheels. Drum brakes are used in many rear wheels of small cars because of their low cost and high absolute braking force. The machining precision of the brake shoe shaft sleeve hole and the roller wheel hole directly influences the wear resistance and the braking effect of the brake shoe, however, in the prior art, a special machining clamp for the brake shoe shaft sleeve hole and the roller wheel hole does not exist, so that the deviation is easy to occur in the machining process, and the production efficiency is low. Therefore, further improvements are desired.
Disclosure of Invention
In view of the above, the present invention aims to overcome the defects in the prior art, and provides a fixture tool for machining a brake shoe shaft sleeve hole and a roller hole end face, which has a reasonable structure, is convenient to machine, and effectively improves the precision and the productivity.
In order to achieve the aim, the invention provides a fixture tool for machining the end faces of a brake shoe shaft sleeve hole and a roller hole, which comprises a fixed seat; the surface of the fixed seat is provided with a positioning table; a pressing component is arranged on the other side of the surface of the fixed seat, which is opposite to the positioning table; a workpiece supporting table is arranged between the positioning table and the pressing assembly; one end of a shaft sleeve hole of the brake shoe is abutted against the positioning table; the pressing assembly is abutted between the two roller holes of the brake shoe; the surface of the workpiece supporting table is provided with a stop groove.
Preferably, the work pallet comprises a contact plate and a lower seat; the backstop groove set up in the contact plate surface.
The stop grooves are used for limiting the positions of two sides of the brake shoe workpiece and accurately positioning the brake shoe workpiece for the subsequent surface milling process.
Preferably, the surface of the contact plate is obliquely arranged; the surface of the contact plate is tangent to the outer surface of the brake shoe workpiece.
The contact plate is adapted to contact the brake shoe workpiece, and the positioning table and hold-down assembly are adapted to define the position of the ends of the brake shoe workpiece.
Preferably, the width of the stop groove is equal to the width of the brake shoe workpiece.
Preferably, the contact plate is riveted on the upper side of the lower seat.
Preferably, the section of the fixed seat is in an inverted L shape; the bottom of the fixed seat is provided with a fixed convex edge.
Preferably, the fixing convex edge is fixed on the fixing seat through a bolt.
Preferably, the pressing assembly comprises a driving cylinder and a radial arm.
Preferably, the tail end of the swing arm is hinged with a piston of the driving cylinder, and the other end of the swing arm abuts against between two roller holes of the brake shoe workpiece; and a rotating fulcrum is arranged between the bottom of the rotating arm and the driving cylinder.
The piston moves upward, so that the radial arm rotates and is pressed between the two roller holes.
Preferably, a milling cutter machine tool is arranged on the upper side of the fixed seat.
The invention is designed aiming at the characteristics of the structure and the shape of a brake shoe workpiece and the motion trail of a milling cutter machine tool in the processing of the end surfaces of a shaft sleeve hole and a roller hole. The brake shoe workpiece is limited through the working supporting table, so that the brake shoe workpiece is ensured to be in an accurate machining position, and meanwhile, the brake shoe workpiece is fixed in the vertical direction through the pressing assembly and the positioning table, so that the workpiece is finally stable to be placed in a station for subsequent machining.
Drawings
Fig. 1 is a schematic cross-sectional structure of the present invention.
Fig. 2 is a schematic structural diagram of the present invention in a working state.
Fig. 3 is a schematic structural view of a brake shoe workpiece.
In the figure, 1 is a fixed seat, 2 is a positioning table, 3 is a pressing component, 4 is a working support table, 4.1 is a stop groove, 4.2 is a contact plate, 4.3 is a lower seat, 5 is a brake shoe workpiece, 5.1 is a shaft sleeve hole, 5.2 is a roller hole, 6 is a driving cylinder, 7 is a rotating arm, and 8 is a milling cutter disc.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Terms used herein, including technical and scientific terms, have the same meaning as terms commonly understood by one of ordinary skill in the art, unless otherwise defined. It will be understood that terms defined in commonly used dictionaries have meanings that are consistent with their meanings in the prior art.
Referring to fig. 1-3, a fixture tool for machining the end faces of a brake shoe shaft sleeve hole and a roller hole comprises a fixed seat 1; the surface of the fixed seat 1 is provided with a positioning table 2; the other side of the surface of the fixed seat 1, which is opposite to the positioning table 2, is provided with a pressing component 3; a workpiece supporting table 4 is arranged between the positioning table 2 and the pressing component 3; one end of a shaft sleeve hole 5.1 of the brake shoe workpiece 5 abuts against the positioning table 2; the pressing component 3 is abutted between two roller holes 5.2 of the brake shoe workpiece 5; the surface of the workpiece saddle 4 is provided with a stop groove 4.1.
Furthermore, the two work pallets are symmetrically arranged on the surface of the fixed seat; the work pallet 4 comprises a contact plate 4.2 and a lower seat 4.3; the stopping groove 4.1 is arranged on the surface of the contact plate 4.2.
Preferably, in the present embodiment, in use, one end of the sleeve hole of the brake shoe workpiece is first placed on the lower side of the positioning table 2, so that the upper end surface of the sleeve hole and the lower side of the positioning table 2 abut against each other, and the main body portion of the brake shoe is placed between the two workpiece pallets 4.
The width of the stop groove 4.1 is selected according to the size of a workpiece to be machined, so that two side faces of the brake shoe workpiece are attached to the inner side wall of the stop groove, and positioning in the horizontal direction is achieved.
Furthermore, the surface of the contact plate 4.2 is obliquely arranged; the surface of the contact plate 4.2 is tangent to the outer surface of the brake shoe workpiece 5.
In the present exemplary embodiment, the contact plate 4.2 is tangent to the outer surface of the brake shoe workpiece 5. Because the outer surface of the brake shoe workpiece is arranged in a cambered surface and is tangentially arranged, the brake shoe workpiece can be kept stable most and the abrasion to the outer surface of the brake shoe workpiece is minimum.
Furthermore, the width of the stop groove 4.1 is equal to the width of the brake shoe workpiece 5.
Furthermore, the contact plate 4.2 is riveted to the upper side of the lower seat 4.3.
Further, the section of the fixed seat 1 is in an inverted L shape; the bottom of the fixed seat 1 is provided with a fixed convex edge 1.1.
Furthermore, the fixing convex edge 1.1 is fixed on the fixing seat 1 through a bolt.
Further, the pressing assembly comprises a driving cylinder 6 and a radial arm 7.
Furthermore, the tail end of the rotary arm 7 is hinged with a piston of the driving cylinder 6, and the other end of the rotary arm abuts against between two roller holes of the brake shoe workpiece 5; and a rotating fulcrum is arranged between the bottom of the rotating arm and the driving cylinder.
In this embodiment, the pressing assembly is designed by combining the swing arm and the cylinder used in the conventional technical means, when the piston of the driving cylinder moves upwards, one end of the swing arm is lifted upwards, and the other end of the swing arm descends under the action of the fulcrum, so that the swing arm is pressed downwards between the two roller holes. Referring to fig. 3, there is a gap between the roller holes in the brake shoe workpiece, and a connecting beam is disposed in the gap, against which the radial arm abuts.
Further, a milling cutter disc 8 is arranged on the upper side of the fixed seat.
In this embodiment, the milling cutter machine tool includes two types of cutterheads, one of which is a cutterhead for milling the shaft sleeve hole, and the other is a cutterhead for milling the outer end surfaces of the two roller holes, and the cutterheads and the cutterhead are respectively cut through the outer end surfaces of the shaft sleeve hole and the roller hole.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a brake shoe axle sleeve hole and gyro wheel hole anchor clamps frock for terminal surface machining which characterized in that: comprises a fixed seat (1); the surface of the fixed seat (1) is provided with a positioning table (2); a pressing component (3) is arranged on the other side of the surface of the fixed seat (1) opposite to the positioning table (2); a workpiece supporting table (4) is arranged between the positioning table (2) and the pressing component (3); one end of a shaft sleeve hole (5.1) of the brake shoe workpiece (5) is abutted against the positioning table (2); the pressing component (3) is abutted between two roller holes (5.2) of the brake shoe workpiece (5); the surface of the workpiece saddle (4) is provided with a stop groove (4.1).
2. The clamp tool for machining the end faces of the brake shoe shaft sleeve hole and the roller hole as claimed in claim 1, wherein the clamp tool comprises: the two work pallets are symmetrically arranged on the surface of the fixed seat; the work pallet (4) comprises a contact plate (4.2) and a lower seat (4.3); the stop groove (4.1) is arranged on the surface of the contact plate (4.2).
3. The clamp tool for machining the end faces of the brake shoe shaft sleeve hole and the roller hole as claimed in claim 2, wherein: the surface of the contact plate (4.2) is obliquely arranged; the surface of the contact plate (4.2) is tangent to the outer surface of the brake shoe workpiece (5).
4. The clamp tool for machining the end faces of the brake shoe shaft sleeve hole and the roller hole as claimed in claim 2, wherein: the width of the stop groove (4.1) is equal to that of the brake shoe workpiece (5).
5. The clamp tool for machining the end faces of the brake shoe shaft sleeve hole and the roller hole as claimed in claim 2, wherein: the contact plate (4.2) is riveted on the upper side of the lower seat (4.3).
6. The clamp tool for machining the end faces of the brake shoe shaft sleeve hole and the roller hole as claimed in claim 1, wherein the clamp tool comprises: the section of the fixed seat (1) is in an inverted L shape; the bottom of the fixed seat (1) is provided with a fixed convex edge (1.1).
7. The clamp tool for machining the end faces of the brake shoe shaft sleeve hole and the roller hole as claimed in claim 6, wherein: the fixed convex edge (1.1) is fixed on the fixed seat (1) through a bolt.
8. The clamp tool for machining the end faces of the brake shoe shaft sleeve hole and the roller hole as claimed in claim 1, wherein the clamp tool comprises: the pressing assembly comprises a driving cylinder (6) and a radial arm (7).
9. The clamp tool for machining the end faces of the brake shoe shaft sleeve hole and the roller hole as claimed in claim 8, wherein: the tail end of the rotary arm (7) is hinged with a piston of the driving cylinder (6), and the other end of the rotary arm is abutted between two roller holes of the brake shoe workpiece (5); and a rotating fulcrum is arranged between the bottom of the rotating arm and the driving cylinder.
10. The clamp tool for machining the end faces of the brake shoe shaft sleeve hole and the roller hole as claimed in claim 1, wherein the clamp tool comprises: the upper side of the fixed seat is provided with a milling cutter head (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011265554.6A CN112317826A (en) | 2020-11-12 | 2020-11-12 | Clamp tool for machining brake shoe shaft sleeve hole and roller hole end face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011265554.6A CN112317826A (en) | 2020-11-12 | 2020-11-12 | Clamp tool for machining brake shoe shaft sleeve hole and roller hole end face |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112317826A true CN112317826A (en) | 2021-02-05 |
Family
ID=74318570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011265554.6A Pending CN112317826A (en) | 2020-11-12 | 2020-11-12 | Clamp tool for machining brake shoe shaft sleeve hole and roller hole end face |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112317826A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2738511A1 (en) * | 1995-09-12 | 1997-03-14 | Heuliez Bus | Machining mount for brake pads for vehicle drum brakes |
| US5621958A (en) * | 1995-01-31 | 1997-04-22 | Woodcox; Gordon G. | Brake element processing device and method |
| CN202726556U (en) * | 2012-08-21 | 2013-02-13 | 美驰华阳汽车制动器有限公司 | Fixture for inner arc counterboring of brake shoes |
| CN204771660U (en) * | 2015-07-22 | 2015-11-18 | 湖北飞龙摩擦密封材料股份有限公司 | Car welds hoof locating hole processing frock clamp with dashing |
| CN205465297U (en) * | 2016-03-04 | 2016-08-17 | 安徽三志制动器有限公司 | Back brake shoe hole milling anchor clamps |
| CN106424520A (en) * | 2016-10-20 | 2017-02-22 | 安徽会合智能设备有限公司 | Brake shoe clamping mechanism applied to brake shoe riveting press |
| CN206105403U (en) * | 2016-08-25 | 2017-04-19 | 湖北飞龙摩擦密封材料股份有限公司 | Car welds hoof locating hole processing frock clamp with dashing |
| CN110842618A (en) * | 2019-12-08 | 2020-02-28 | 湖南运达机电科技股份有限公司 | Boring clamp special for machining brake shoe |
| CN110883576A (en) * | 2019-12-12 | 2020-03-17 | 湖南运达机电科技股份有限公司 | Brake shoe's warning piece draw-in groove adds clamping apparatus |
| CN210702742U (en) * | 2019-08-07 | 2020-06-09 | 湖北泰克摩擦材料有限公司 | Milling device for end face of brake shoe shaft hole |
| CN210703745U (en) * | 2019-08-07 | 2020-06-09 | 湖北泰克摩擦材料有限公司 | Milling and clamping device for end face of brake shoe shaft hole |
-
2020
- 2020-11-12 CN CN202011265554.6A patent/CN112317826A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5621958A (en) * | 1995-01-31 | 1997-04-22 | Woodcox; Gordon G. | Brake element processing device and method |
| FR2738511A1 (en) * | 1995-09-12 | 1997-03-14 | Heuliez Bus | Machining mount for brake pads for vehicle drum brakes |
| CN202726556U (en) * | 2012-08-21 | 2013-02-13 | 美驰华阳汽车制动器有限公司 | Fixture for inner arc counterboring of brake shoes |
| CN204771660U (en) * | 2015-07-22 | 2015-11-18 | 湖北飞龙摩擦密封材料股份有限公司 | Car welds hoof locating hole processing frock clamp with dashing |
| CN205465297U (en) * | 2016-03-04 | 2016-08-17 | 安徽三志制动器有限公司 | Back brake shoe hole milling anchor clamps |
| CN206105403U (en) * | 2016-08-25 | 2017-04-19 | 湖北飞龙摩擦密封材料股份有限公司 | Car welds hoof locating hole processing frock clamp with dashing |
| CN106424520A (en) * | 2016-10-20 | 2017-02-22 | 安徽会合智能设备有限公司 | Brake shoe clamping mechanism applied to brake shoe riveting press |
| CN210702742U (en) * | 2019-08-07 | 2020-06-09 | 湖北泰克摩擦材料有限公司 | Milling device for end face of brake shoe shaft hole |
| CN210703745U (en) * | 2019-08-07 | 2020-06-09 | 湖北泰克摩擦材料有限公司 | Milling and clamping device for end face of brake shoe shaft hole |
| CN110842618A (en) * | 2019-12-08 | 2020-02-28 | 湖南运达机电科技股份有限公司 | Boring clamp special for machining brake shoe |
| CN110883576A (en) * | 2019-12-12 | 2020-03-17 | 湖南运达机电科技股份有限公司 | Brake shoe's warning piece draw-in groove adds clamping apparatus |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210205 |
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| RJ01 | Rejection of invention patent application after publication |