Heavy large-modulus gear hobbing and edge milling combined machine tool

Abstract

The utility model belongs to the field of machine tool machining, and relates to a heavy large-modulus gear hobbing and edge milling composite machine tool which comprises a machine tool body, a large stand column, a sliding plate, a tool rest, a workbench, an edge milling stand column, an edge milling sliding base and other components, and multi-axis linkage and accurate control are achieved through driving of a lead screw, a motor and the like. The machine tool adopts a generating method principle to carry out gear hobbing, and various complex gears such as straight and oblique cylindrical gears, worm gears, small taper gears, drum-shaped gears, splines and the like can be efficiently and precisely machined. Meanwhile, the double-finger-shaped milling cutter is adopted for edge milling, and consistency and precision of tooth profile edge milling of the upper end face and the lower end face of the gear are guaranteed. The gear milling machine has the advantages of being high in function integration degree, high in machining capacity, high in edge milling precision, reasonable in structural design, wide in application range and capable of meeting the high requirement of the heavy machinery manufacturing industry for gear machining, improving the machining efficiency and the production flexibility and reducing the production cost and the time cost.

Description

TECHNICAL FIELD

[0001] The utility model belongs to machine tool processing field relates to heavy -duty big module gear hobbing mill edge composite machine tool. BACKGROUND

[0002] In heavy machinery manufacturing industry, the processing of gear is a vital link. The traditional gear processing machine tool is often single function, and it is difficult to meet the high efficiency, high precision processing demand of complex gear (such as straight, inclined cylindrical gear, worm, small taper gear, drum gear and spline etc.). Especially in heavy automobile manufacturing, hoisting machinery, mining, shipbuilding, elevator, metallurgy, power equipment, engineering machinery and other industries, the quality and processing efficiency of gear have extremely high requirements.

[0003] At present, although there are some machine tools capable of processing complex gear on the market, but these machine tools mostly have problems such as complex structure, cumbersome operation, low processing efficiency etc. In addition, for the gear milling processing, the traditional method often adopts single finger-shaped milling cutter, and this processing mode not only has low efficiency, but also is difficult to guarantee the consistency and precision of gear upper and lower end surface tooth profile milling. CONTENT OF UTILITY MODEL

[0004] Therefore, the utility model aims at providing a heavy -duty big module gear hobbing mill edge composite machine tool, which can realize the new type machine tool of gear upper and lower end surface tooth profile milling at the same time to meet the high requirements of heavy machinery manufacturing industry to gear processing.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: heavy -duty big module gear hobbing mill edge composite machine tool, including bed, the big column and the mill edge column are set on the bed through the guide rail, and the workbench is set on the big column and the mill edge column support, the tool rest is installed on the big column, and the mill edge cutter is arranged on the mill edge column;The slide plate is installed on the big column through the guide rail, and the Z-axis feed is completed by the motor drive screw rod, the rotatable adapter plate is also arranged on the slide plate, the tool rest is fixed on the rotatable adapter plate of the slide plate, and the rotation of the tool rest can be completed by the motor drive;Two mill edge sliding seats are also arranged on the mill edge column, the up and down movement of the two mill edge sliding seats is completed by the first motor drive screw rod, the shaft movement of Z2, Z3 is realized, and the mill edge cutter is installed on the two mill edge sliding seats respectively.

[0006] Optionally, the big column is connected with the screw nut and the transmission box, the screw nut is driven by the motor to make the big column complete the X-axis movement.

[0007] Optionally, the workbench is rotatably arranged on the bed to complete the rotation movement of C-axis.

[0008] Optionally, the second motor is further connected to the bottom of the mill edge column, and the second motor drives the screw rod to make the mill edge column complete the X4-axis movement on the guide rail of the bed.

[0009] Optionally, two milling edge slides are respectively provided with sliding blocks, the sliding blocks are connected with third motors through lead screws, and the third motors respectively drive the two sliding blocks to complete axial movement of X2 and X3.

[0010] Optionally, the milling edge cutter is provided with a mounting plate connected with the milling edge slide, a U-shaped groove is formed in the mounting plate, the milling edge cutter is adjustably arranged on the milling edge slide through the U-shaped groove, and is fixed through screws.

[0011] Optionally, the two milling edge cutters are arranged oppositely.

[0012] The utility model discloses the beneficial effect lies in:

[0013] 1) high function integration: the machine tool integrates two machining functions of gear hobbing and edge milling, realizes compound machining, greatly improves machining efficiency and production flexibility. Without conversion between different machine tools, the whole machining process of the gear can be completed, and the production cost and time cost are reduced.

[0014] 2) strong machining capacity: the gear hobbing is carried out by using the principle of generation method, and high-efficiency and high-precision machining of various complex gears such as straight and inclined cylindrical gears, worm gears, small taper gears, drum gears and splines can be realized. This meets the strict requirements of heavy machinery manufacturing industry on gear machining quality and precision.

[0015] 3) high edge milling precision: the edge milling is carried out by using double finger-shaped milling cutters, and the two high-speed rotating milling cutters can simultaneously complete the upper and lower end surface tooth profile milling along the upper and lower tooth profiles of the workpiece, ensuring the consistency and precision of the upper and lower end surface tooth profile milling of the gear, and improving the overall quality and use performance of the gear.

[0016] 4) reasonable structure design: the machine tool is composed of a bed, a large column, a slide plate, a tool holder, a workbench, a milling edge column and a milling edge slide and the like, the components are closely connected and stably move. Through the X-axis, Z-axis, B-axis and C-axis composed of lead screws, columns and slide plates, multi-axis linkage and accurate control of the machine tool are realized, and the stability and precision of the machining process are ensured.

[0017] 5) wide application range: the machine tool is suitable for heavy automobile manufacturing, hoisting machinery, mining, shipbuilding, elevators, metallurgy, power generation equipment, engineering machinery and the like, can meet different needs of different industries for gear machining, has high market application value and popularization prospect.

[0018] The other advantages, objects, and features of the present application will become more apparent with knowledge of the present description when taken in conjunction with the accompanying drawings, in which: BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to make the objectives, technical solutions, and advantages of the present application clearer, the following will make a preferred detailed description of the present application in conjunction with the drawings, in which:

[0020] Figure 1 is a schematic diagram of the overall structure of the present application;

[0021] Figure 2 is a schematic diagram of the working movement of the present application;

[0022] Figure 3 is a partial three-dimensional view of the present application;

[0023] Figure 4 is a partial front view of Figure 3 .

[0024] The drawings show: bed body 1, large column 2, slide plate 3, tool holder 4, workbench 5, edge milling column 6, edge milling slide 7, first motor 8, second motor 9, third motor 10, edge milling tool 11, U-shaped groove 12, sliding block 13. DETAILED DESCRIPTION

[0025] The embodiments of the present application will be described in detail below through specific concrete examples, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the present description. The present application can also be implemented or applied in another different specific embodiment, and each detail in the present description can be modified or changed based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that the drawings provided in the following examples only illustrate the basic concept of the present application in a schematic manner, and the following examples and features in the examples can be combined with each other without conflict.

[0026] The drawings are only used for exemplary illustration, and the representation is only a schematic diagram, not a physical diagram, and cannot be understood as a limitation on the present application; in order to better illustrate the embodiments of the present application, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0027] The same or similar reference signs in the drawings of the embodiments of the present utility model correspond to the same or similar components; in the description of the present utility model, it is understood that if the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "front", "back" and the like is based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore the terms describing the position relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the present utility model, for ordinary skilled persons in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0028] Please refer to Figures 1-4 It is a kind of heavy large module hobbing milling edge composite machine tool, including bed 1, bed 1 as the basis supporting component of entire machine tool, ensure the stability and precision of machine tool.On bed 1, through guide rail, there are large column 2 and milling edge column 6 respectively, these two columns are used to support the relevant components of hobbing processing and milling edge processing.

[0029] Large column 2 is installed with slide plate 3, and the feeding movement of Z axis is completed by motor-driven screw rod on slide plate 3, that is, axial cutting feed.Slide plate 3 is also provided with rotatable chuck, and tool holder 4 is fixed on the rotatable chuck of slide plate, and the B-axis rotation movement of tool holder 4 can be completed by motor-driven rotatable chuck, that is, the rotation of tool.The tool holder 4 is used to install hobbing tool, and hobbing processing is realized.

[0030] Milling edge column 6 is provided with milling edge slide 7, and the number of milling edge slide 7 is two, which are used to install milling edge cutter 11.Two milling edge slides 7 complete up-down movement through first motor 8 driven screw rod, realize the movement of Z2, Z3 axis.Milling edge cutter 11 is installed on two milling edge slides 7 respectively, and two milling edge cutters 11 are arranged oppositely, which are used to mill the upper and lower face profiles of gear simultaneously.

[0031] In order to complete the radial tool depth feed of X axis, large column 2 is connected with screw nut and transmission box, the screw nut can make large column 2 complete X axial movement by motor driving.Meanwhile, workbench 5 is rotatably arranged on bed 1, and the rotation movement of C axis, that is, the rotation of workpiece, can be completed by motor driving.

[0032] Milling edge column 6 is also connected with second motor 9 at the bottom, and the second motor 9 drives screw rod to make milling edge column 6 complete X4 axial movement on the guide rail of bed 1.In addition, slide block 13 is also installed on two milling edge slides 7 respectively, and third motor 10 is connected with slide block 13 through screw rod, and third motor 10 drives two slide blocks 13 to complete X2, X3 axial movement respectively.

[0033] In the installation of the edge milling cutter 11, an installation plate connected with the edge milling slide 7 is arranged, a U-shaped slot 12 is formed on the installation plate, the edge milling cutter 11 can be arranged on the edge milling slide 7 at an adjustable angle through the U-shaped slot 12, and is fixed through a screw.

[0034] The utility model discloses when using,

[0035] When carrying out hobbing, the hobbing cutter on the tool holder 4 is under the joint action of B-axis rotation and Z-axis feeding, and carries out hobbing to the workpiece placed on the workbench 5. At the same time, the C-axis rotation movement of the workbench 5 ensures that the workpiece can uniformly receive hobbing.

[0036] After completing the hobbing, the machine tool is switched to the edge milling mode. At this time, the two edge milling cutters 11 are moved to the upper and lower end surfaces of the gear under the movement of Z2, Z3 axes. Then, through the axial movement of X2, X3 axes and the movement of X4 axis, it is ensured that the edge milling cutter 11 can accurately mill the edge of the upper and lower tooth profile of the workpiece. At the same time, since the two edge milling cutters 11 are arranged oppositely, the tooth profile milling of the upper and lower end surfaces can be completed at the same time, which greatly improves the processing efficiency and precision.

[0037] The utility model has the advantages of high function integration, strong processing capacity, high edge milling precision, reasonable structure design and wide application range, and can meet the high requirements of heavy machinery manufacturing industry on gear processing.

[0038] Finally, it is pointed out that the above embodiments are only used to illustrate the technical scheme of the utility model and are not limited, although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical scheme of the utility model can be modified or replaced equivalently without departing from the purpose and scope of the technical scheme, which should be covered in the claim range of the utility model.

Claims

1. A heavy-duty large-module gear hobbing and edge milling combined machine tool, characterized in that: The bed body is provided with a large column, a milling rib column and a workbench, the large column and the milling rib column are arranged on the bed body through guide rails, a tool holder is arranged on the large column, and a milling rib cutter is arranged on the milling rib column; A slide plate is arranged on the large column through guide rails, the slide plate is driven by a motor to drive a screw rod to complete Z-axis feeding, a rotatable joint disc is further arranged on the slide plate, the tool holder is fixed on the rotatable joint disc of the slide plate, and the tool holder can be rotated by a motor; Two milling rib slide seats are further arranged on the milling rib column, the two milling rib slide seats are driven by a first motor to drive screw rods to complete up-down movement, thereby realizing Z2 and Z3 axis movements, and the milling rib cutters are respectively arranged on the two milling rib slide seats.

2. The heavy duty large module gear hobbing and milling complex machine tool according to claim 1, characterized in that: A screw rod nut and a transmission box are arranged outside the large column, the screw rod nut is driven by a motor to drive the large column to complete X-axis movement.

3. The heavy duty large module gear hobbing and milling complex machine tool according to claim 1, characterized in that: The workbench is rotatably arranged on the bed body to complete C-axis rotation movement.

4. The heavy duty large module gear hobbing and milling complex machine tool according to claim 1, characterized in that: A second motor is further connected to the bottom of the milling rib column, the second motor drives a screw rod to drive the milling rib column to complete X4-axis movement on the guide rail of the bed body.

5. The heavy duty large module gear hobbing and milling complex machine tool according to claim 1, characterized in that: Sliding blocks are further respectively arranged on the two milling rib slide seats, the sliding blocks are connected with third motors through screw rods, and the third motors respectively drive the two sliding blocks to complete X2 and X3 axis movements.

6. The heavy duty large module gear hobbing and pinion milling combined machine tool according to claim 1, characterized in that: The milling rib cutters are provided with mounting plates connected with the milling rib slide seats, U-shaped grooves are arranged on the mounting plates, the milling rib cutters are arranged on the milling rib slide seats through the U-shaped grooves and are adjustably arranged at an angle, and the milling rib cutters are fixed through screws.

7. The heavy duty large module gear hobbing and pinion milling combined machine according to claim 6, characterized in that: The two milling rib cutters are arranged in an up-down opposite manner.

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