CN105382581B - Milling fixture for inner side surface of rear lifting lug of steel plate spring and clamping method for rear lifting lug of steel plate spring - Google Patents
Milling fixture for inner side surface of rear lifting lug of steel plate spring and clamping method for rear lifting lug of steel plate spring Download PDFInfo
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- CN105382581B CN105382581B CN201510929228.3A CN201510929228A CN105382581B CN 105382581 B CN105382581 B CN 105382581B CN 201510929228 A CN201510929228 A CN 201510929228A CN 105382581 B CN105382581 B CN 105382581B
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- lifting lug
- base
- seat
- steel plate
- plate spring
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- 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
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
-
- 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
- B23Q3/069—Work-clamping means for pressing workpieces against a work-table
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2270/00—Details of milling machines, milling processes or milling tools not otherwise provided for
- B23C2270/08—Clamping mechanisms or provision for clamping
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
- Clamps And Clips (AREA)
Abstract
The invention discloses a milling fixture for the inner side surface of a rear lifting lug of a steel plate spring and a clamping method for the rear lifting lug, wherein the milling fixture comprises a stop pin, an upper locking handle, a slide block, a locking seat, a pressure head, a front positioning seat, a front positioning shaft, a rear left mandrel support, a spring, a rear right mandrel support, a lower locking handle, a base and the like. The invention has the characteristics of simple installation, reliable positioning, high repetition precision, reusability, convenient use and the like, reduces the times of clamping and tool setting, can finish milling of two side surfaces by one-time clamping, has high production efficiency, can meet the requirement of processing precision, ensures the processing quality and yield, reduces the processing cost, and can meet the requirement of large-batch milling of rear lifting lugs.
Description
Technical Field
The invention relates to the field of automobile part manufacturing, in particular to a milling clamp for an inner side surface of a rear lifting lug of a steel plate spring and a rear lifting lug clamping method thereof.
Background
The automobile suspension is one of the important assemblies of the automobile, and the technical condition and the working performance of the suspension have important influence on the overall performance of the automobile. Suspension systems are generally composed of resilient elements, such as leaf springs, guide devices, dampers, snubbers and lateral stabilizers. The automobile steel plate spring is an important part of an automobile suspension system and is of great importance to the technical performance and safety performance of the whole automobile. The steel plate spring is supported on the automobile frame through the front and rear lifting lugs to form a suspension support, the front and rear lifting lugs bear the automobile load, and particularly, the rear lifting lug of the steel plate spring is a main bearing part and has bad working conditions. Therefore, the processing quality of the rear lifting lug of the leaf spring has an important influence on the technical performance of the leaf spring assembly, which puts high requirements on the processing technology of the rear lifting lug of the leaf spring, and how to improve the production processing technology of the rear lifting lug of the leaf spring, especially how to ensure the milling processing precision of two side faces of the rear end of the rear lifting lug of the leaf spring, is a problem to be solved by the technical personnel in the field.
Disclosure of Invention
Aiming at the problems, the invention provides a milling fixture for the inner side surfaces of a rear lifting lug of a steel plate spring and a rear lifting lug clamping method thereof, which can ensure the processing precision of the two inner side surfaces of the rear lifting lug of the steel plate spring, so that the processing quality of the rear lifting lug of the steel plate spring meets the requirements of the working precision, the service performance and the service life of an automobile, and the defects of the prior art are overcome.
The technical scheme adopted by the invention is as follows:
a milling clamp for the inner side face of a rear lifting lug of a leaf spring comprises a stop pin, an upper locking handle, a sliding block, a locking seat, a pressure head, a front positioning seat, a front positioning shaft, a rear left mandrel support, a spring, a rear right mandrel support, a lower locking handle and a base, wherein the front positioning shaft is arranged on the front positioning seat, the front end of the front positioning shaft extends out of the front positioning seat, and the rear end of the front positioning shaft is locked with the end face of a front positioning seat 6 through a nut washer; the pressure head is arranged in the locking seat and can vertically move relative to the locking seat, and the sliding block is arranged in the locking seat, is in sliding fit with the locking seat and can horizontally move relative to the locking seat; the stop pin is arranged on the base boss, the step end surface of the stop pin is in contact with the plane of the base boss, and the stop pin is in threaded connection with the base through a threaded part arranged at the lower part of the stop pin; the rear left mandrel is arranged on the rear left mandrel support, the front end of the rear left mandrel extends out of the rear left mandrel support, and the rear end of the rear left mandrel is locked with the end face of the rear left mandrel support 10 through a nut washer; the rear right axle is arranged on the rear right axle support, the front end of the rear right axle extends out of the rear right axle support, the rear end of the rear right axle is fixedly connected with the lower locking handle, a spring is arranged in the middle of the rear right axle, and two ends of the spring are respectively tightly attached to the steps of the right axle and the end surface of the rear right axle support.
The method for clamping the rear lifting lug by using the milling clamp for the inner side surface of the rear lifting lug of the steel plate spring provided by the embodiment of the invention comprises the following steps:
1) placing the front end of the lifting lug to be processed on a boss of the base 15;
2) penetrating a seat hole on one side of the front end of the rear lifting lug to be processed into the front positioning shaft, and enabling the outer side face of the front end of the rear lifting lug to be tightly attached to the end face of the front positioning seat;
3) installing a stop pin on a boss of the base, and tightly attaching the other outer side surface of the front end of the lifting lug to be processed to the stop pin to form line contact;
4) sleeving a rear left mandrel on one side of a seat hole at the rear end of the rear lifting lug to be processed, and simultaneously attaching the two sides of the rear end of the rear lifting lug to the end faces of a rear left mandrel support and a rear right mandrel support;
5) pulling the lower locking handle 14 to insert the front end of the rear right mandril into the other side of the rear end seat hole of the rear lifting lug to be processed and locking the front end of the rear right mandril;
6) the upper locking handle 2 is wrenched to enable the pressure head to tightly press and lock the front end of the lifting lug to be machined;
7) rechecking whether each threaded connection part is locked without looseness, if so, finishing clamping; otherwise, the locking and fixing are carried out.
The invention has the working principle that the machined seat hole of the rear lifting lug is used as a positioning reference, the outer contour surface is used for limiting, the front end seat hole is sleeved in the front positioning shaft, the end surface of the front positioning shaft is tightly attached to the end surface of the inner side of the front positioning seat, the rear end seat hole is inserted and positioned by the rear left mandrel and the rear right mandrel to ensure the clamping and positioning of the rear lifting lug during machining, the side surface of the front end is limited by the stop pin, the rear lifting lug to be drilled is installed and fixed on the base during machining, the machined seat hole of the front end of the lifting lug is positioned by the positioning mandrel, and is clamped and fixed by the pressure head, so that the position of a workpiece is completely fixed.
The rear end seat hole of the lifting lug to be machined is positioned by the two mandrels, two side faces of the seat hole are limited by the left mandrel support and the right mandrel support, the seat hole on one side of the front end of the lifting lug to be machined is positioned by the front positioning shaft, the other side of the front end of the lifting lug to be machined is limited by the stop pin, and the upper plane of the front end of the rear lifting lug to be machined is pressed by the pressing head.
Compared with the prior art, the invention has the characteristics of simple installation, reliable positioning, high repetition precision, reusability, convenient use and the like, reduces the times of clamping and tool setting, can finish milling of two side surfaces by one-time clamping, has high production efficiency, can meet the requirement of processing precision, ensures the processing quality and yield, reduces the processing cost, and can meet the requirement of large-batch milling of rear lifting lugs.
Drawings
FIG. 1 is a schematic front view of the present invention
FIG. 2 is a schematic side view of the present invention
Detailed Description
The technical solution of the present invention is further explained with reference to the drawings and the embodiments.
A milling clamp for the inner side face of a rear lifting lug of a steel plate spring is disclosed, and is shown in the attached drawings 1-2, and comprises a stop pin 1, an upper locking handle 2, a sliding block 3, a locking seat 4, a pressure head 5, a front positioning seat 6, a front positioning shaft 7, a rear left mandrel 9, a rear left mandrel support 10, a spring 11, a rear right mandrel 12, a rear right mandrel support 13, a lower locking handle 14 and a base 15, wherein the front positioning shaft 7 is arranged on the front positioning seat 6, the front end of the front positioning shaft extends out of the front positioning seat 6, the rear end of the front positioning shaft is locked with the end face of the front positioning seat 6 through a nut washer, and the front positioning seat 6 is arranged on the base 15 and is fixedly connected with;
the pressure head 4 set up in locking seat 4, this pressure head 4 rear end face be equipped with slider 3 complex inclined plane, can be for locking seat 4 vertical migration, slider 3 front end have with pressure head 4 complex inclined plane, its rear end and last locking handle fixed connection. The sliding block 3 is arranged in the locking seat 4, is in sliding fit with the locking seat 4, can horizontally move relative to the locking seat 4, and has an inclined surface matched with the inclined surface of the pressure head 4;
the locking seat is arranged on the boss of the base and is fixedly connected with the base;
the stop pin 1 is arranged on a boss of the base 15, the step end surface of the stop pin is in plane contact with the boss of the base 15, and is in threaded connection with the base 15 through a threaded part arranged at the lower part;
the rear left mandrel 9 is arranged on a rear left mandrel support 10, the front end of the rear left mandrel 9 extends out of the rear left mandrel support 10, the rear end of the rear left mandrel is locked with the end face of the rear left mandrel support 10 through a nut washer, and the rear left mandrel support 10 is arranged on a base 15 and is fixedly connected with the base 15 through a bolt;
the rear right axle 12 is arranged on a rear right axle support 13, the front end of the rear right axle 12 extends out of the rear right axle support 13, the rear end of the rear right axle is fixedly connected with a lower locking handle 14, a spring 11 is arranged in the middle of the rear right axle 12, two ends of the spring 11 are respectively clung to the step of the right axle 12 and the end surface of the rear right axle support 13, and the rear right axle support 13 is arranged on a base 15 and is fixedly connected with the base 15 through bolts;
the method for clamping the rear lifting lug by using the milling clamp for the inner side surface of the rear lifting lug of the steel plate spring provided by the embodiment of the invention comprises the following steps:
1) placing the front end of the lifting lug to be processed on a boss of the base 15;
2) penetrating a seat hole on one side of the front end of the rear lifting lug to be processed into the front positioning shaft, and enabling the outer side face of the front end of the rear lifting lug to be tightly attached to the end face of the front positioning seat;
3) installing a stop pin on a boss of the base, and tightly attaching the other outer side surface of the front end of the lifting lug to be processed to the stop pin to form line contact;
4) sleeving a rear left mandrel on one side of a seat hole at the rear end of the rear lifting lug to be processed, and simultaneously attaching the two sides of the rear end of the rear lifting lug to the end faces of a rear left mandrel support and a rear right mandrel support;
5) pulling the lower locking handle 14 to insert the front end of the rear right mandril into the other side of the rear end seat hole of the rear lifting lug to be processed and locking the front end of the rear right mandril;
6) the upper locking handle 2 is wrenched to enable the pressure head to tightly press and lock the front end of the lifting lug to be machined;
7) rechecking whether each threaded connection part is locked without looseness, if so, finishing clamping; otherwise, the locking and fixing are carried out.
The milling fixture can be installed and fixed on a milling machine through four long slotted holes formed in the base 15, and after the clamping of the lifting lug needs to be processed is finished, two inner side faces of the lifting lug can be milled.
The rear end seat hole of the lifting lug to be machined is positioned by the two mandrels, two side faces of the seat hole are limited by the left mandrel support and the right mandrel support, the seat hole on one side of the front end of the lifting lug to be machined is positioned by the front positioning shaft, the other side of the front end of the lifting lug to be machined is limited by the stop pin, and the upper plane of the front end of the rear lifting lug is pressed by the pressing head.
Claims (8)
1. The utility model provides a lug medial surface milling fixture behind leaf spring which characterized in that: the front positioning shaft is arranged on the front positioning seat, the front end of the front positioning shaft extends out of the front positioning seat, and the rear end of the front positioning shaft is locked with the end surface of the front positioning seat (6) through a nut washer; the pressure head is arranged in the locking seat and can vertically move relative to the locking seat, and the sliding block is arranged in the locking seat, is in sliding fit with the locking seat and can horizontally move relative to the locking seat; the stop pin is arranged on the base boss, the step end surface of the stop pin is in contact with the plane of the base boss, and the stop pin is in threaded connection with the base through a threaded part arranged at the lower part of the stop pin; the rear left mandrel is arranged on the rear left mandrel support, the front end of the rear left mandrel extends out of the rear left mandrel support, and the rear end of the rear left mandrel is locked with the end face of the rear left mandrel support (10) through a nut washer; the rear right axle is arranged on the rear right axle support, the front end of the rear right axle extends out of the rear right axle support, the rear end of the rear right axle is fixedly connected with the lower locking handle, a spring is arranged in the middle of the rear right axle, and two ends of the spring are respectively tightly attached to the steps of the right axle and the end surface of the rear right axle support.
2. The milling fixture for the inner side face of the rear lifting lug of the steel plate spring as claimed in claim 1, wherein: the locking seat is arranged on the boss of the base and is fixedly connected with the base.
3. The milling fixture for the inner side face of the rear lifting lug of the steel plate spring as claimed in claim 1, wherein: the front positioning seat is arranged on the base and is fixedly connected with the base.
4. The milling fixture for the inner side face of the rear lifting lug of the steel plate spring as claimed in claim 1, wherein: the front end of the sliding block is provided with an inclined plane matched with the pressure head, and the rear end of the sliding block is fixedly connected with the upper locking handle.
5. The milling fixture for the inner side face of the rear lifting lug of the steel plate spring as claimed in claim 1, wherein: the rear end face of the pressure head is provided with an inclined plane matched with the sliding block, and the inclined plane is matched with the sliding block and can vertically move relative to the locking seat under the driving of the sliding block.
6. The milling fixture for the inner side face of the rear lifting lug of the steel plate spring as claimed in claim 1, wherein: the rear left mandrel support is arranged on the base and is fixedly connected with the base (15) through a bolt.
7. The milling fixture for the inner side face of the rear lifting lug of the steel plate spring as claimed in claim 1, wherein: the rear right crankshaft support is arranged on the base and is fixedly connected with the base through bolts.
8. A method for clamping a rear lifting lug by using the milling clamp for the inner side surface of the rear lifting lug of the steel plate spring as claimed in any one of claims 1 to 7, wherein the method comprises the following steps: the method comprises the following steps:
1) placing the front end of the lifting lug to be processed on a boss of the base (15);
2) penetrating a seat hole on one side of the front end of the rear lifting lug to be processed into the front positioning shaft, and enabling the outer side face of the front end of the rear lifting lug to be tightly attached to the end face of the front positioning seat;
3) installing a stop pin on a boss of the base, and tightly attaching the other outer side surface of the front end of the lifting lug to be processed to the stop pin to form line contact;
4) sleeving a rear left mandrel on one side of a seat hole at the rear end of the rear lifting lug to be processed, and simultaneously attaching the two sides of the rear end of the rear lifting lug to the end faces of a rear left mandrel support and a rear right mandrel support;
5) pulling a lower locking handle (14) to enable the front end of the rear right mandrel to be inserted into the other side of the rear end seat hole of the rear lifting lug to be processed and locked;
6) pulling the upper locking handle (2) to enable the pressure head to tightly press the front end of the lifting lug to be machined and lock the lifting lug;
7) rechecking whether each threaded connection part is locked without looseness, if so, finishing clamping; otherwise, locking and fixing are carried out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510929228.3A CN105382581B (en) | 2015-12-11 | 2015-12-11 | Milling fixture for inner side surface of rear lifting lug of steel plate spring and clamping method for rear lifting lug of steel plate spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510929228.3A CN105382581B (en) | 2015-12-11 | 2015-12-11 | Milling fixture for inner side surface of rear lifting lug of steel plate spring and clamping method for rear lifting lug of steel plate spring |
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| Publication Number | Publication Date |
|---|---|
| CN105382581A CN105382581A (en) | 2016-03-09 |
| CN105382581B true CN105382581B (en) | 2020-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510929228.3A Active CN105382581B (en) | 2015-12-11 | 2015-12-11 | Milling fixture for inner side surface of rear lifting lug of steel plate spring and clamping method for rear lifting lug of steel plate spring |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108098398A (en) * | 2016-11-24 | 2018-06-01 | 上海国上机电科技有限公司 | A kind of processing bearing pin numerical control attachment device |
| CN108340173B (en) * | 2018-03-02 | 2023-12-12 | 苏州市昌星模具机械有限公司 | Efficient high-precision clamp for aircraft landing gear support and clamping method of efficient high-precision clamp |
| CN109158918A (en) * | 2018-11-08 | 2019-01-08 | 衡阳市振洋汽车配件有限公司 | Ears part groove milling process special fixture |
| CN109926617B (en) * | 2019-03-14 | 2024-02-27 | 广西科技大学 | Clamp for simultaneously drilling upper holes and lower holes on spring lifting lug parts |
| CN111070126A (en) * | 2019-12-23 | 2020-04-28 | 天津市航宇嘉瑞科技股份有限公司 | Combined clamping tool for processing irregular rocker arm product |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US7258348B2 (en) * | 2004-12-16 | 2007-08-21 | General Electric Company | Machining fixture for centering and holding workpiece |
| CN201880965U (en) * | 2010-10-24 | 2011-06-29 | 郧西县神风实业有限公司 | Lock pin hole clamp of front-back fixed end bracket/lifting lug end bracket |
| CN202292175U (en) * | 2011-09-17 | 2012-07-04 | 林州市正和铸业有限公司 | Steel plate pin locking device of steel plate shackle bracket |
| CN202846224U (en) * | 2012-11-13 | 2013-04-03 | 黑龙江八一农垦大学 | Clamp after rough mill on inner side end face of leaf spring shackle |
| CN202894837U (en) * | 2012-11-28 | 2013-04-24 | 黑龙江八一农垦大学 | Clamp for machining phi-30mm auxiliary hole of rear leaf spring shackle |
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