Novel high-precision and high-efficiency machining machine tool special for train wheels

Abstract

The utility model discloses a novel high-precision and high-efficiency special machining tool for train wheels, which comprises a stand column, a workbench base, a three-jaw self-centering chuck, a motor seat, a cross beam, a cross beam sliding seat, a vertical tool rest, a cross beam protective cover, a double-station floor tool magazine and a chipping machine, a left vertical knife rest and a right vertical knife rest are arranged on the two sides of the front portion of the cross beam sliding seat respectively, and horizontal wire dragging assemblies are arranged between the left vertical knife rest and the cross beam sliding seat and between the right vertical knife rest and the cross beam sliding seat. A ram center is arranged at the lower part of the cross beam sliding seat; a left tool magazine and a right tool magazine are arranged on the two sides of the center of the ram respectively, and a tool magazine connector is arranged between the left tool magazine and the right tool magazine. The utility model has the advantages of small thermal deformation, good precision retentivity, high dynamic and static stiffness of the whole machine and large bearing capacity.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of machining, specifically relates to a novel high-precision and high-efficiency special machining machine tool for train wheel. BACKGROUND

[0002] The precision machining technology is one of the most important development directions of modern mechanical manufacturing industry, and as an industrial mother machine, it is extremely important to ensure precision. The machining machine tool is used for train wheel production and machining, and has the characteristics of high precision and high efficiency. CONTENT OF UTILITY MODEL

[0003] The utility model discloses a novel high-precision and high-efficiency special machining machine tool for train wheel, which helps to improve the stability and reliability of machining.

[0004] In order to realize the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0005] A novel high-precision and high-efficiency special machining machine tool for train wheel, comprising a stand, a workbench base, a three-jaw self-centering chuck, a motor seat, a crossbeam, a crossbeam slide, a vertical tool rest, a crossbeam protective cover, a double-station floor knife library and a chip machine, the crossbeam protective cover is arranged on the side surface of the crossbeam slide, left and right vertical tool rests are respectively arranged on the front part of the crossbeam slide, and horizontal wire-drawing assembly is arranged between the left and right vertical tool rests and the crossbeam slide; the crossbeam slide lower part is provided with a slide center; the slide center two sides are respectively provided with a left knife library and a right knife library, and a knife library connecting body is arranged between the left and right knife libraries.

[0006] Further, the motor seat is arranged on the back surface of the workbench base, and a main motor is arranged on the motor seat.

[0007] Further, the workbench base is arranged at the lower part of the stand, and the workbench base is provided with a three-jaw self-centering chuck.

[0008] Further, the workbench base side surface is provided with a chip machine and a centralized chip remover, and the centralized chip remover upper part one side is provided with a iron chip box.

[0009] Further, the slide center lower part is provided with a CAPTO C tool holder.

[0010] Further, the stand is provided with a tool measuring device.

[0011] Further, the workbench base upper part one side is provided with a three-jaw self-centering chuck.

[0012] Further, the crossbeam upper part is provided with a horizontal limit switch assembly.

[0013] Further, the workbench base upper part side surface is provided with an electric cabinet and a support.

[0014] The machine tool is composed of a column, a workbench base, a three-jaw chuck, a motor seat, a cross beam, a cross beam slide, a vertical tool holder, a cross beam protective cover, a double 12-station floor tool magazine, workpiece measurement and tool measurement, chip removal cooling and the like. The column right side is provided with a lubricating station, and lubrication of the X and Z shaft screw support bearings and screw nuts is respectively controlled through electromagnetic valves. The workbench base is designed with an optimized structure, and on the basis of ensuring rigidity, noise is reduced, a larger weight can be borne, the three-jaw self-centering chuck is supported by crossed roller bearings, has the advantages of high rotation accuracy, can bear a larger axial and radial load, provides high rigidity support and the like, the three-jaw self-centering chuck can better hold a workpiece, and workpiece centering and stability are ensured. The motor seat is arranged on the back of the workbench base, is designed in an integrated manner, reduces the floor area, and the deep groove ball bearing support is adopted at the overhanging end of the motor shaft, so that the motor shaft is more stable during rotation. The cross beam adopts a steel guide rail plate, and has the advantages of high strength, high wear resistance and high precision. The slide ram vertical feed motor seat and the rotary slide of the vertical tool holder are in an integrated structure, are driven by an AC servo motor, are reduced in speed through an externally purchased speed reducer, are driven through a shaft coupling, a ball screw, rapid tool holder and feed are realized, the rotary slide is an eccentric structure, the tool holder is provided with a nitrogen balance oil cylinder, tool cooling and workpiece cooling devices, and the slide ram lower side is provided with an automatic tool releasing mechanism. The Capto C10 tool releasing mechanism is adopted to realize automatic grabbing of the Capto tool holder. The cross section of the Capto tool holder is a three-arc segment equidistant profile, three angles are uniformly distributed at 120°, the contact surface of the profile connection is large, stress concentration is not easy to occur, and deformation is not easy to occur. Compared with the traditional flat key connection, stress is more uniform, torque transmission is larger, and positioning accuracy is higher. The workpiece measurement and tool measurement are in an integrated structure, are installed in front of the column, adopt a push-out structure, are controlled by a cylinder, and when tool setting or workpiece diameter detection is performed, the cylinder reaches a specified stroke, and the tool holder with the tool or the workpiece measurement device is detected. The chip removal cooling device contains three water tanks and a chip machine, and water cooling and iron chip cleaning effects are ensured.

[0015] The utility model has the advantages that: (1) small thermal deformation. The whole machine tool adopts high-strength materials and optimized structure design, which can effectively reduce the thermal deformation of the machine tool. (2) Good precision retention. The workbench adopts a three-jaw self-centering chuck, selects a Capto tool holder structure, and the rotary slide is an eccentric structure, provided with a workpiece measuring device and a tool measuring device, which ensures the machining precision. (3) High static and dynamic stiffness of the whole machine. The sitting type fixed beam structure is adopted, high-strength materials are selected, the overall stiffness of the machine tool is improved, and the reliability of the machine tool is ensured. (4) Large carrying capacity. The internal cavity of the workbench base is partially optimized to ensure the weight of the workpiece to be carried, and the maximum load capacity is 5t. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a front view structural schematic diagram of the device used in the embodiment of the utility model.

[0017] Fig. 2 is the device side view structure schematic diagram used in the embodiment of the utility model.

[0018] Fig. 3 is the device top view structure schematic diagram used in the embodiment of the utility model.

[0019] Marked in the figure: 1, left vertical tool rest;2, crossbeam slide;3, right vertical tool rest;4, horizontal wire dragging assembly;5, crossbeam protective cover;6, ram center;7, iron chip box;8, tool magazine connecting body;9, left tool magazine;10, right tool magazine;11, chip removal machine;12, centralized chip removal device;13, crossbeam;14, horizontal limit switch assembly;15, CAPTO C10 tool holder;16, tool measuring device;17, three-jaw self-centering chuck;18, stand;19, main motor;20, motor base;21, workbench base;22, electric cabinet and support. DETAILED DESCRIPTION

[0020] The specific embodiments of the utility model are described below in combination with the drawings, so that the utility model can be better understood.

[0021] As Figs. 1 to 3 shown in the novel train wheel high-precision high-efficiency special machining tool, including stand 18, workbench base 21, three-jaw self-centering chuck 17, motor base 20, crossbeam 13, crossbeam slide 2, vertical tool rest, crossbeam protective cover 5, double 12 station floor tool magazine, chip removal machine 11, wherein, crossbeam protective cover 5 is set up in crossbeam slide 2 side, the crossbeam slide 2 front two sides position is equipped with left vertical tool rest 1 and right vertical tool rest 3 respectively, and left vertical tool rest 1 and right vertical tool rest 3 are all equipped with horizontal wire dragging assembly 4 between crossbeam slide 2;Crossbeam slide 2 lower part is equipped with ram center 6;Ram center 6 both sides are equipped with left tool magazine 9 and right tool magazine 10 respectively, and left tool magazine 9 and right tool magazine 10 are equipped with tool magazine connecting body 8 between.

[0022] Motor base 20 is set up in the back of workbench base 21, and main motor 19 is installed on motor base 20.Workbench base 21 is set up in the lower part position of stand 18, and three-jaw self-centering chuck 17 is equipped on workbench base 21.Workbench base 21 side is equipped with chip removal machine 11 and centralized chip removal device 12, and iron chip box 7 is equipped on the upper side of centralized chip removal device 12.Ram center 6 below is equipped with CAPTO C10 tool holder 15.Stand 18 is installed with tool measuring device 16.Workbench base 21 upper side is equipped with three-jaw self-centering chuck 17.Crossbeam 13 upper part is equipped with horizontal limit switch assembly 14.Workbench base 21 upper side is equipped with electric cabinet and support 22.

[0023] In the device, the right side of the column 18 is provided with a lubricating station, and the lubrication of the X-axis and Z-axis screw supporting bearings and the screw nut is controlled by electromagnetic valves respectively. The workbench base 21 is designed in an optimized structure, which can reduce noise and bear a larger weight on the basis of ensuring rigidity. The three-jaw self-centering chuck 17 is supported by crossed roller bearings, which has the advantages of high rotation accuracy, high axial and radial load bearing capacity, and high rigidity support. The three-jaw self-centering chuck 17 can better hold the workpiece and ensure the centering and stability of the workpiece. The motor seat 20 is arranged on the back of the workbench base 21 and is designed in an integrated manner to reduce the floor area. The deep groove ball bearing is used to support the overhanging end of the motor shaft, so that the motor shaft rotates more stably. The cross beam 13 is made of steel guide rail plate, which has the advantages of high strength, high wear resistance and high precision. The slide ram vertical feed motor seat and the rotary slide are integrated structures, which are driven by an AC servo motor, reduced by an external reducer, driven by a coupling, and realize the rapid and feeding of the tool holder. The rotary slide is an eccentric structure, the tool holder is provided with a nitrogen balance oil cylinder, a tool cooling device and a workpiece cooling device, and the slide ram is provided with an automatic tool releasing mechanism. The Capto C10 tool releasing mechanism is used to realize the automatic grabbing of the Capto tool holder. The cross section of the Capto tool holder is a three-arc segment equidistant profile, and the three angles are uniformly distributed at an angle of 120°. This profile has a large contact surface and is not easy to deform. Compared with the traditional flat key connection, the force is more uniform, the torque is larger, and the positioning accuracy is higher. The workpiece measurement and tool measurement are integrated structures, which are installed in front of the column and use a push-out structure controlled by a cylinder. When the tool is measured or the workpiece diameter is detected, the cylinder reaches the specified stroke, and the tool holder with the tool or the workpiece measurement device is detected. The chip removal and cooling device contains three water tanks and a chip machine to ensure the water cooling and chip cleaning effect.

[0024] The above describes the preferred embodiments of the present application. It should be noted that those skilled in the art can make some improvements and refinements without departing from the principles of the present application. These improvements and refinements are also considered within the scope of protection of the present application.

Claims

1. A novel high-precision and high-efficiency special-purpose machine tool for machining train wheels, characterized in that: Including the column (18), the workstation base (21), three claw self-centering chuck (17), motor seat (20), crossbeam (13), crossbeam slide (2), vertical knife holder, crossbeam protective cover (5), double 12 station floor knife library, chip machine (11), The crossbeam protective cover (5) is arranged in the side of crossbeam slide (2), the crossbeam slide (2) is respectively provided with left vertical knife holder (1) and right vertical knife holder (3) in the front of both sides, the left vertical knife holder (1) and right vertical knife holder (3) are both provided with horizontal drag line assembly (4) between crossbeam slide (2);The crossbeam slide (2) lower part is equipped with slide center (6);The slide center (6) both sides are respectively equipped with left knife library (9) and right knife library (10), and the left knife library (9) and right knife library (10) are equipped with knife library connecting body (8) between them.

2. The new high-precision and high-efficiency special machine tool for machining train wheels according to claim 1, characterized in that: The motor seat (20) is arranged on the back of the workstation base (21), and the main motor (19) is installed on the motor seat (20).

3. The novel high-precision and high-efficiency special machine tool for machining train wheels according to claim 1, characterized in that: The workstation base (21) is arranged on the lower part of the column (18), and the three claw self-centering chuck (17) is arranged on the workstation base (21).

4. The new type of high-precision and high-efficiency special machine tool for machining train wheels according to claim 1, characterized in that: The side of the workstation base (21) is provided with a chip machine (11) and a concentrated chip discharger (12), and the upper side of the concentrated chip discharger (12) is provided with a scrap iron box (7).

5. The new type of high-precision and high-efficient special machine tool for processing train wheel according to claim 1, characterized in that: The slide center (6) is provided with a CAPTO C10 tool holder (15) below.

6. The new type of high-precision and high-efficient special machine tool for machining train wheel according to claim 1, characterized in that: The cutter measuring device (16) is installed on the column (18).

7. The new type of high-precision and high-efficient special machine tool for processing train wheel according to claim 1, characterized in that: The upper side of the workstation base (21) is provided with a three claw self-centering chuck (17).

8. The new type of high-precision and high-efficiency special machine tool for machining train wheels according to claim 1, characterized in that: The upper part of the crossbeam (13) is provided with a horizontal limit switch assembly (14).

9. The new type of high-precision and high-efficient special machine tool for processing train wheel according to claim 1, characterized in that: The upper side of the workstation base (21) is provided with an electric cabinet and support (22).

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