CN212071206U - Railway passenger car axle box rotating arm machining positioning fixture - Google Patents
Railway passenger car axle box rotating arm machining positioning fixture Download PDFInfo
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- CN212071206U CN212071206U CN202020702524.6U CN202020702524U CN212071206U CN 212071206 U CN212071206 U CN 212071206U CN 202020702524 U CN202020702524 U CN 202020702524U CN 212071206 U CN212071206 U CN 212071206U
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- passenger car
- oil cylinders
- supporting seats
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Abstract
The rail passenger car axle box rotating arm machining positioning clamp comprises a base, wherein three supporting seats are arranged on the base, first oil cylinders which are vertically upward are respectively and fixedly arranged on the outer sides of the three supporting seats on the base, and first pressure arms are fixedly arranged at the top ends of piston rods of the first oil cylinders; positioning columns are respectively and fixedly arranged in front of the two supporting seats at the rear side on the base, second oil cylinders which are vertically upward are respectively and fixedly arranged in front of the two positioning columns, and second pressure arms are arranged at the piston rod ends of the second oil cylinders; and centering clamps are respectively and fixedly arranged on the base between the two second oil cylinders and behind the two supporting seats at the rear sides, and clamping jaws of the two centering clamps move left and right along the left-right direction. The positioning operation of the axle box rotating arm of the railway passenger car is simple, time and labor are saved, and the processing efficiency is improved; and the pivot arm of the axle box of the railway passenger car can be firmly clamped, the machining precision of the pivot arm of the axle box of the railway passenger car is improved, and the product percent of pass is improved.
Description
Technical Field
The utility model relates to a rail passenger train axle box rocking arm processing equipment especially designs a rail passenger train axle box rocking arm processing positioning fixture.
Background
The railway passenger car bogie has the functions of supporting the railway passenger car body, reducing the vibration of the railway train body and improving the running stability of the railway train. The axle box rotating arm of the railway passenger car is used as an important component of a railway passenger car bogie and mainly has the function of connecting a wheel pair with a side frame or a framework together, so that the rolling of the wheel pair along a steel rail is converted into the translation of a car body, the weight of the car body is borne, and acting force is transferred.
In the process of processing the axle box rotating arm of the railway passenger car, the axle box rotating arm of the railway passenger car needs to be positioned on an operation platform of a numerical control machine tool. The traditional rail passenger car axle box rotating arm positioning mode is as follows: firstly, determining a datum line for a rail passenger car axle box rotating arm through manual drawing and correcting, then supporting the rail passenger car axle box rotating arm on a numerical control machine tool operating platform by using a plurality of sizing blocks, finally fastening a bolt on the numerical control machine tool operating platform, and clamping and fixing the rail passenger car axle box rotating arm by a pressing plate connected with the bolt. The traditional rail passenger car axle box rotating arm positioning operation is complex, time and labor are wasted, and the processing efficiency is low; and the clamping structure for clamping the axle box rotating arm of the railway passenger car by the pressing plate is infirm through the fastening bolt, so that the axle box rotating arm of the railway passenger car is not accurately machined, and the product percent of pass is low.
Disclosure of Invention
The utility model provides a positioning fixture for processing the pivot arm of the axle box of the railway passenger car, which can make the positioning operation of the pivot arm of the axle box of the railway passenger car simple, save time and labor and improve the processing efficiency; and the pivot arm of the axle box of the railway passenger car can be firmly clamped, the machining precision of the pivot arm of the axle box of the railway passenger car is improved, and the product percent of pass is improved.
The technical solution of the utility model is that:
railway vehicle axle box rocking arm processing positioning fixture, including the base, its special character lies in: the method comprises the following steps that three supporting seats are installed on a base, one supporting seat is located on the front side of the base, the other two supporting seats are arranged on the rear side of the base in a left-right mode, a first oil cylinder which faces upwards vertically is fixedly installed on the base corresponding to the outer sides of the three supporting seats, a first pressing arm is fixedly installed at the top end of a piston rod of the first oil cylinder, and the first pressing arm points to the corresponding supporting seat; positioning columns are respectively and fixedly installed in front of the supporting seats on the two rear sides of the base, second oil cylinders which are vertically upward are respectively and fixedly installed in front of the two positioning columns, second pressure arms pointing to the corresponding positioning columns are hinged to the rear sides of the cylinder bodies of the second oil cylinders, and the front sides of the second pressure arms are hinged to piston rods of the second oil cylinders; and centering clamps are respectively and fixedly arranged on the base between the two second oil cylinders and behind the two supporting seats at the rear sides, and clamping jaws of the two centering clamps move left and right along the left-right direction.
Preferably, the left side and the right side of the supporting seat positioned on the front side of the base are respectively and fixedly provided with an upright post, and the two upright posts are respectively provided with a locking screw through threads and are arranged oppositely to assist in clamping the axle box rotating arm of the railway passenger car left and right.
Preferably, three third oil cylinders which are vertically upward and arranged left and right are fixedly installed behind the supporting seat positioned on the rear side of the base, and piston cylinders of the three third oil cylinders abut against the rear end of the bottom surface of the axle box rotating arm of the railway passenger car to support the rear end of the bottom surface of the axle box rotating arm of the railway passenger car in an auxiliary mode.
The utility model has the advantages that:
the rail passenger car axle box rotating arm is placed on the three supporting seats, the first oil cylinder is started, and the first pressure arm fixedly clamps the rail passenger car axle box rotating arm on the three supporting columns for horizontal positioning; the positioning columns are fixedly arranged in front of the two supporting seats on the rear side, the second oil cylinders are fixedly arranged in front of the two positioning columns, the second pressure arms are arranged between cylinder body diagram piston rods of the second oil cylinders and point to the corresponding positioning columns, the second oil cylinders are started, the second pressure arms rotate backwards, and the rear ends of the second pressure arms push the convex parts on the left and right sides of the rotating arm of the axle box of the railway passenger car backwards against the front end surfaces of the positioning columns to perform front and back positioning; the two centering clamps are started because the centering clamps are fixedly arranged between the two second oil cylinders and behind the two rear-side supporting seats and move left and right, the clamping jaws of the centering clamps are abutted against the left and right inner side walls of the rotating arm of the axle box of the railway passenger car left and right, and the rotating arm of the axle box of the railway passenger car is positioned and fixed left and right; the rail passenger car axle box rotating arm is simple to position and operate, time and labor are saved, and the processing efficiency is improved; and the rail passenger car axle box rotating arm is firmly clamped, the machining precision of the rail passenger car axle box rotating arm is improved, and the product percent of pass is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a view showing the usage state of the present invention;
in the figure: the method comprises the following steps of 1-base, 2-supporting base, 3-first oil cylinder, 4-first pressure arm, 5-third oil cylinder, 6-positioning column, 7-second oil cylinder, 8-second pressure arm, 9-centering clamp, 10-upright post and 11-locking screw.
Detailed Description
As shown in fig. 1, the positioning fixture for processing the axle box rotating arm of the railway passenger car comprises a base 1, wherein three supporting seats 2 are arranged on the base 1, one supporting seat 2 is positioned on the front side of the base 1, the other two supporting seats 2 are arranged on the rear side of the base 1 in a left-right mode, a first oil cylinder 3 which faces upwards is fixedly arranged on the base 1 corresponding to the outer sides of the three supporting seats 2 respectively, a first pressure arm 4 is fixedly arranged at the top end of a piston rod of the first oil cylinder 3, the first pressure arm 4 points to the corresponding supporting seat 2, and three third oil cylinders 5 which face upwards and are arranged left-right are fixedly arranged behind the supporting seat 2 positioned on the rear side of the base; positioning columns 6 are respectively and fixedly installed in front of the two supporting seats 2 at the rear side on the base 1, second oil cylinders 7 which are vertically upward are respectively and fixedly installed in front of the two positioning columns 6, second pressure arms 8 which point to the corresponding positioning columns 6 are hinged to the rear sides of the cylinder bodies of the second oil cylinders 7, and the front sides of the second pressure arms 8 are hinged to piston rods of the second oil cylinders 7; the centering clamp 9 is fixedly arranged between the two second oil cylinders 7 on the base 1 and behind the two supporting seats 2 at the rear side respectively, clamping jaws of the two centering clamps 9 move left and right along the left-right direction, the upright columns 10 are fixedly arranged at the left side and the right side of the supporting seat 2 at the front side on the base 1 respectively, locking screws 12 are arranged on the two upright columns 10 respectively through threads, and the two locking screws 12 are arranged oppositely.
As shown in fig. 2, when positioning operation is performed, firstly, the axle box rotating arm of the railway passenger car is placed on three supporting seats 2 to perform horizontal positioning; then starting two centering clamps 9, wherein clamping jaws of the centering clamps 9 are abutted against left and right inner side walls of a rail passenger car axle box rotating arm to position and fix the rail passenger car axle box rotating arm left and right; starting the second oil cylinder 7, pushing a second pressure arm 8 to rotate backwards by a piston rod of the second oil cylinder 7, and pushing the convex parts on the left and right side surfaces of the axle box rotating arm of the railway passenger car backwards against the front end surface of the positioning column 6 by the rear end of the second pressure arm 8 to perform front and back positioning; and finally, starting the first oil cylinder 3, fixedly clamping the rail passenger car axle box rotating arm on three support columns by a first pressure arm 4 at the top end of the first oil cylinder 3, locking two locking screws 12 to clamp the left side and the right side of the rail passenger car axle box rotating arm, starting a third oil cylinder 5 to support at the rear end of the bottom surface of the rail passenger car axle box rotating arm, and starting machining operation.
The above description is only an example of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. Railway vehicle axle box rocking arm processing positioning fixture, including the base, its characterized in that: the method comprises the following steps that three supporting seats are installed on a base, one supporting seat is located on the front side of the base, the other two supporting seats are arranged on the rear side of the base in a left-right mode, a first oil cylinder which faces upwards vertically is fixedly installed on the base corresponding to the outer sides of the three supporting seats, a first pressing arm is fixedly installed at the top end of a piston rod of the first oil cylinder, and the first pressing arm points to the corresponding supporting seat; positioning columns are respectively and fixedly installed in front of the supporting seats on the two rear sides of the base, second oil cylinders which are vertically upward are respectively and fixedly installed in front of the two positioning columns, second pressure arms pointing to the corresponding positioning columns are hinged to the rear sides of the cylinder bodies of the second oil cylinders, and the front sides of the second pressure arms are hinged to piston rods of the second oil cylinders; and centering clamps are respectively and fixedly arranged on the base between the two second oil cylinders and behind the two supporting seats at the rear sides, and clamping jaws of the two centering clamps move left and right along the left-right direction.
2. The rail passenger car axle box pivot arm machining positioning fixture of claim 1, characterized in that: the left side and the right side of the supporting seat positioned on the front side on the base are respectively and fixedly provided with an upright post, locking screws are respectively arranged on the two upright posts through threads, and the two locking screws are arranged oppositely.
3. The rail passenger car axle box pivot arm machining positioning fixture of claim 1, characterized in that: and three third oil cylinders which are vertically upward and arranged left and right are fixedly arranged behind the supporting seat positioned at the rear side on the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020702524.6U CN212071206U (en) | 2020-04-30 | 2020-04-30 | Railway passenger car axle box rotating arm machining positioning fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020702524.6U CN212071206U (en) | 2020-04-30 | 2020-04-30 | Railway passenger car axle box rotating arm machining positioning fixture |
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| Publication Number | Publication Date |
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| CN212071206U true CN212071206U (en) | 2020-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020702524.6U Active CN212071206U (en) | 2020-04-30 | 2020-04-30 | Railway passenger car axle box rotating arm machining positioning fixture |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113369921A (en) * | 2021-06-21 | 2021-09-10 | 长春中车轨道车辆有限公司 | EMUs axle box node spot facing work frock |
-
2020
- 2020-04-30 CN CN202020702524.6U patent/CN212071206U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113369921A (en) * | 2021-06-21 | 2021-09-10 | 长春中车轨道车辆有限公司 | EMUs axle box node spot facing work frock |
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