JP3047583U - Rail wheel cutting device - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a track wheel sharpening device for the purpose of improving work efficiency and finishing accuracy in rail wheel sharpening. [Structure] On a traveling bed having liftable traveling wheels, there are a pair of left and right columns that can be laterally fed by a servomotor or the like, and each column has a tool rest and a rail wheel that can be vertically fed by a servomotor or the like. Equipped with a carbide tool that is a regular tool, an optical or electric measuring device for measuring the finishing accuracy, etc., these feed controls are performed numerically, and the rotating track wheel is cut with a tool. Wheel cutting device.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 Bogie traveling test equipment (for high-speed railcars such as Shinkansen trains, it is a device that performs a traveling test at a fixed position without repairing the bogie before actually running it. It is a circular infinite rail called four rail wheels. The wheel of the truck is put on the wheel, and the rotation of the rail wheel is transmitted to the wheel of the truck to check the performance and operation in a simulated running state.) Therefore, it is necessary to reduce the thickness every certain operating hours. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a track wheel cutting device for cutting a track wheel of a bogie traveling test device.

[0002]

[Conventional technology and problems]

 The structure of the conventional track wheel cutting device and the cutting method are as follows. Because of the grinding method using a grindstone (2-6), it is not possible to take a large amount of shaving or a large feed rate, and it is necessary to replace the grindstone according to changes in the surface shape of the rail wheel, and uneven wear and clogging of the grindstone Work efficiency is low, such as the need for frequent dressing. 2. Since the shaving amount is controlled by copying according to the template (2-8), the accuracy of the template itself affects the processing accuracy of the track wheel cutting. 3. Only one grindstone (2-6) is equipped in the sharpening device. To sharpen a pair of right and left rail wheels, after grinding one of the rail wheels, the device is turned over and centered. After performing the setup again, it is necessary to sharpen the other rail. 4. A dial gauge is used to measure the finishing accuracy after processing, and the measuring accuracy is about ± 0.01 mm. There were the above problems.

[0003]

[Problems to be solved by the invention]

 The present invention provides a track wheel cutting device for improving work efficiency and finishing accuracy in rail wheel cutting.

[0004]

[Means for Solving the Problems]

 On a traveling bed (3-1) having four elevating traveling wheels (3-2), a pair of columns (3-9) which can be traversed by a servomotor or the like (3-6) is provided on the left and right sides. Each column has a turret (3-13) that can be fed vertically by a servomotor (3-10), etc., a carbide cutting tool (3-14) that is a tool for cutting rail wheels, and an optics for measuring finishing accuracy. Equipped with an electronic or electric measuring device (3-15), these feed controls are performed by numerical control, and the rotating rail (1-1) is cut with a carbide tool (3-14). This is a unique track wheel cutting device.

[0005]

[Action and effect]

 The present invention has taken the above-mentioned measures. Since the carbide cutting tool (3-14) is used as the cutting tool, the cutting amount and feed rate can be increased as compared with the grinding method using the grinding wheel (2-6), and the rail wheel (1-1) can be used. There is no need to change tools according to the change in surface shape in 1), and there is no uneven wear or clogging of tools, so dressing is not required and work efficiency is improved. 2. Since the horizontal and vertical feeds are numerically controlled by the servo motors (3-6) and (3-10), the machining accuracy is improved compared to the copying control using the template (2-8). 3. The sharpening device of the present invention is equipped with one sharpening machine for each of the left and right sides, so that a pair of rail wheels can be sharpened simultaneously. 4. Since the measurement of the finishing accuracy after processing is provided with an optical or electric measuring device, the measurement accuracy is improved as compared with the measurement using a dial gauge, and a digital display becomes possible, so that the confirmation is more reliable.

[0006]

【Example】

 Hereinafter, the present invention will be described in more detail with reference to embodiments shown in the drawings. FIG. 1 shows an embodiment of the present invention, in which a traveling bed (3−3) having four lifting / lowering traveling wheels (3-2) moved up and down by rotating a handle (3-3). 1) A column (3-9) that can be traversed along the X-axis guide rail (3-8) by a servo motor or the like (3-6) and an X-axis feed screw (3-7). Each of the columns has a tool post (3-10) which can be vertically fed along a Y-axis guide rail (3-12) by a servo motor or the like (3-10) and a Y-axis feed screw or the like (3-11). -13) and a tool for cutting rail wheels (3-14) removably attached to the tool post (3-13), ascending and descending with a cylinder with guide (3-16) for measuring finishing accuracy It is equipped with a possible measuring device (3-15), and it is necessary to control these feeds by numerical control. Is a rail-wheel-cutting positive apparatus to which the butterflies.

Next, the working procedure using the track wheel cutting device of the present invention will be described. By turning the handle (3-3), the traveling wheel (3-2) of the lifting type is lowered, and the entire traveling bed (3-1) is lifted from the apron (1-7) so that the vehicle can run. To move to the wheel wheel cutting position. At this time, the set bolts (3-4) attached to both ends of the traveling bed (3-1) can be screwed and set in the set bolt tap holes (1-8) of the apron (1-7). Adjust to the position. Then, the steering wheel (3-3) is rotated to raise the traveling wheel (3-2), the traveling bed (3-1) is grounded to the Eplon (1-7), and the adjusting bolt (3-5) is used. After adjusting the level of the traveling bed (3-1) in front, back, left and right, fix it to the apron (1-7) with set bolts (3-4). In this embodiment, the raising and lowering of the wheel (3-3) and the traveling of the bed (3-1) are performed manually, but can be performed by electric power.

[0008] The initial values such as the dimensions of the rail (1-1) before machining and the gap between the cutting tool (3-14) and the rail (1-1) are input to the arithmetic unit, and the left and right rails are cut. After performing the correction at the same time, measure the dimensions and machining accuracy after the cutting with the measuring device and confirm. Numerical control is used to control the cutting depth and feed amount during cutting, the vertical feed amount of the measuring device, and their speed control.

[Brief description of the drawings]

FIG. 1 shows a conceptual diagram of a bogie traveling test apparatus.

FIG. 2 shows an example of a cross section of a rail wheel.

FIG. 3 is a plan view of a conventional machine.

FIG. 4 is a front view of a conventional machine.

FIG. 5 is a side view of a conventional machine.

FIG. 6 is a plan view of one embodiment of the present invention.

FIG. 7 is a front view of one embodiment of the present invention.

FIG. 8 is a side view of one embodiment of the present invention.

[Explanation of symbols]

(1-1) Rail (1-2) Guide rail (1-3) Truck (1-4) Wheel (1-5) Air spring (1-6) Load applying device (1-7) Apron (2- 1) Bed (2-2) Wheel (2-3) Set bolt (2-4) Adjust bolt (2-5) Spring (2-6) Whetstone (2-7) Dresser (2-8) Template (2- 9) Tracing roll (2-10) Electric motor for driving the grindstone (2-11) Conductive belt (2-12) Electric motor for horizontal feed (2-13) Manual handle for horizontal feed (2-14) Motor for vertical feed ( 2-15) Manual handle for vertical feed (3-1) Travel bed (3-2) Elevating traveling wheel (3-3) Handle (3-4) Set bolt (3-5) Adjust bolt (3-6) X-axis servo motor (3-7) X-axis feed screw (3-8) X-axis Idoreru (3-9) column (3-10) Y
(3-11) Y axis feed screw (3-12) Y
Shaft guide rail (3-13) Tool post (3-14) Carbide cutting tool (3-15) Measuring device (3-16) Guided cylinder (3-17) Control panel, operation panel

Claims (1)

[Utility model registration claims] 1. A servo motor or the like (3-6) on a traveling bed (3-1) having four elevating traveling wheels (3-2).
There are a pair of left and right columns (3-9) that can be traversed laterally, and each column has a servomotor etc. (3-10)
Turret (3-13) that can be fed longitudinally, carbide cutting tool (3-14) that is a track wheel cutting tool, and optical or electric measuring device (3-15) for finishing accuracy measurement And a feeder for cutting the rotating rail (1-1) with a carbide cutting tool (3-14) by performing numerical control of these feed controls.