Multi-station milling device for guide wheel of railway vehicle
By designing a multi-station milling device, using technical means such as tooling units and linear modules, the simultaneous processing of multiple guide wheels is achieved, which solves the downtime caused by frequent replacement in the existing technology and improves production efficiency.
Patent Information
- Application Number
- CN202422094785.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-28
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-08-28
AI Technical Summary
When milling the end surface of the guide wheel of the rail vehicle, existing milling machines need to frequently replace the guide wheel, resulting in the machine tool being shut down, wasting working hours and reducing production efficiency.
A multi-station milling device is designed to position the guide wheels through the tooling unit, and use a linear module and a cross slide platform to drive the head and milling cutter for milling to realize the simultaneous machining of multiple guide wheels and reduce the replacement time.
The device can process multiple guide wheels at once, reduce replacement time, improve production efficiency, and achieve continuous processing.
Smart Images
Figure CN222986266U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rail vehicle parts processing, in particular to a multi-station milling device for a rail vehicle guide wheel. Background Art
[0002] During the operation of rail transit vehicles such as high-speed trains, EMUs, and subways, especially when the vehicles are going through curves, guide wheels are usually installed on the bogies to prevent the vehicle body from swinging too much to the left or right or tilting, so as to improve the stability and safety of the vehicle body and the comfort of passengers.
[0003] The hub structure of the guide wheel is made of metal, and its end face needs to be milled during processing to improve its surface flatness. When the existing milling machine performs milling processing on the end face of the guide wheel, the guide wheel is first fixed on the workbench by a fixture, and then the machine head drives the milling cutter to move and process the guide wheel; after the processing is completed, the guide wheel is removed from the fixture and replaced with a new guide wheel to be processed. However, during the replacement process of the guide wheel, the machine tool is in a shutdown state and can only be processed again after the replacement is completed. A lot of working hours are wasted during the waiting period for replacement, so the production efficiency is low and needs to be improved. Utility Model Content
[0004] In order to solve the above problems, the utility model proposes a multi-station milling device for a guide wheel of a rail vehicle, comprising a base, a column, a processing table, a tooling unit, a support arm, a machine head and a milling cutter, wherein the column is longitudinally arranged at one end of the base, the processing table is arranged on the base through a cross slide, and the processing table can be driven to reciprocate along the X-axis and Y-axis directions of the base through the cross slide, the tooling unit is fixedly arranged on the processing table, the support arm is slidably arranged on the column in the horizontal direction through a linear module, and the support arm can be driven to reciprocate along the Z-axis direction of the column through the linear module, the machine head is arranged at the front end of the support arm, and the milling cutter transmission is arranged at the bottom of the machine head.
[0005] Preferably, the tooling unit includes a base plate, a side plate and a positioning column. The base plate is fixed on the processing table by a first bolt, and the side plates are arranged on both sides of the base plate by a second bolt. A plurality of positioning columns are equidistantly spaced along the length direction of the base plate, and a limit block is provided on one side of the positioning column.
[0006] Preferably, the side plate is in an L-shaped structure, the horizontal plate at the bottom and the side wall of the bottom plate are provided with penetrating threaded holes, and the second bolt penetrates into the threaded hole from the outside of the horizontal plate.
[0007] Preferably, the vertical plates of the side plates are higher than the plane where the bottom plate is located, so as to limit the guide wheels.
[0008] Compared with the related technologies, the beneficial effects of the present utility model are as follows:
[0009] The multi-station milling device of the present utility model positions the guide wheel through the tooling unit, and drives the machine head and the milling cutter through the linear module to mill the end face of the guide wheel on the tooling unit. Moreover, the tooling unit can place multiple guide wheels at the same time, enabling the processing of multiple products at one time, reducing the dressing time, and thus improving the production efficiency. Description of the Drawings
[0010] Figure 1 It is a side view of the overall structure of the present utility model;
[0011] Figure 2 It is a cross-sectional view of the end face structure of the tooling unit in the present utility model;
[0012] Figure 3 It is a top view of the structure of the tooling unit in the present utility model.
[0013] Reference Numerals:
[0014] 1 - Base, 2 - Column, 3 - Processing Table, 4 - Tooling Unit, 41 - Base Plate, 42 - Side Plate, 43 - Positioning Post, 44 - First Bolt, 45 - Second Bolt, 46 - Limiting Block, 47 - Threaded Hole, 5 - Support Arm, 6 - Machine Head, 7 - Milling Cutter, 8 - Cross Slide, 9 - Linear Module. Detailed Embodiments
[0015] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.
[0016] In the description of the embodiments, unless otherwise clearly specified and limited, terms such as "set" and "connected" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or connected through an intermediate medium, or the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0017] As Figure 1As shown, the multi-station milling device for the guide wheel of a rail vehicle in this embodiment includes a base 1, a column 2, a processing table 3, a tooling unit 4, a support arm 5, a machine head 6 and a milling cutter 7. The column 2 is longitudinally arranged at one end of the base 1, the processing table 3 is arranged on the base 1 through a cross slide 8, and the processing table 3 can be driven to reciprocate along the X-axis and Y-axis directions of the base 1 through the cross slide 8. The tooling unit 4 is fixedly arranged on the processing table 3, the support arm 5 is slidably arranged on the column 2 in the horizontal direction through a linear module 9, and the support arm 5 can be driven to reciprocate along the Z-axis direction of the column 2 through the linear module 9, the machine head 6 is arranged at the front end of the support arm 5, and the milling cutter 7 is transmission-arranged at the bottom of the machine head 6.
[0018] like Figures 2-3 As shown, the tooling unit 4 includes a base plate 41, a side plate 42 and a positioning column 43. The base plate 41 is fixed on the processing table 3 by a first bolt 44, and the side plates 42 are arranged on both sides of the base plate 41 by a second bolt 45. A plurality of positioning columns 43 are equidistantly arranged along the length direction of the base plate 41, and a limit block 46 is arranged on one side of the positioning column 43.
[0019] The side panel 42 is in an L-shaped structure, and the side walls of the bottom horizontal panel and the bottom panel 41 are provided with threaded holes 47, and the second bolt 45 penetrates into the threaded hole 47 from the outside of the horizontal panel; the vertical panel of the side panel 42 is higher than the plane where the bottom panel 41 is located, so as to limit the guide wheel; by replacing the side panels 42 of different sizes, the distance between the two side panels 42 can be changed to adapt to guide wheels of different sizes.
[0020] When the multi-station milling device of the present invention is used, the center holes of the plurality of guide wheels are first sleeved on the positioning posts 43 in sequence, and are limited by the limiting blocks 46 to prevent the guide wheels from rotating.
[0021] Then the linear module 9 drives the machine head 6 and the milling cutter 7 to move downward, and moves the tooling unit 4 through the cross slide 8, and the end faces of the guide wheels on the tooling unit 4 are milled one by one by the milling cutter 7; the tooling unit 4 can hold multiple guide wheels at the same time, which can realize the processing of multiple products at one time and reduce the changeover time; and while processing, the vacated workstation can be put back into the guide wheel to be processed, thereby realizing continuous processing and improving production efficiency.
[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.
Claims
1. A multi-station milling device for a rail vehicle guide wheel, characterized in that: It includes a base, a column, a processing table, a tooling unit, a support arm, a machine head and a milling cutter. The column is longitudinally arranged at one end of the base, the processing table is arranged on the base through a cross slide, and the cross slide can drive the processing table to reciprocate along the X-axis and Y-axis directions of the base. The tooling unit is fixedly arranged on the processing table, the support arm is slidably arranged on the column in the horizontal direction through a linear module, and the support arm can be driven to reciprocate along the Z-axis direction of the column through the linear module, the machine head is arranged at the front end of the support arm, and the milling cutter transmission is arranged at the bottom of the machine head.
2. The multi-station milling device for the guide wheel of a rail vehicle according to claim 1, characterized in that: The tooling unit includes a base plate, a side plate and a positioning column. The base plate is fixed on the processing table by a first bolt, and the side plates are arranged on both sides of the base plate by a second bolt. A plurality of positioning columns are equidistantly arranged along the length direction of the base plate, and a limit block is arranged on one side of the positioning column.
3. The multi-station milling device for the guide wheel of a rail vehicle according to claim 2, characterized in that: The side plate is in an L-shaped structure, and the horizontal plate at the bottom and the side wall of the bottom plate are provided with penetrating threaded holes, and the second bolt penetrates from the outside of the horizontal plate into the threaded hole.
4. The multi-station milling device for the guide wheel of a rail vehicle according to claim 3, characterized in that: The vertical plates of the side plates are higher than the plane where the bottom plate is located, so as to limit the position of the guide wheels.