1. A valve turbine machining center which characterized in that: comprises a frame (1), a tool rest assembly (2), a first driving shaft assembly (3) and a second driving shaft assembly (4);

the tool rest assembly (2) is mounted on the rack (1) through a vertical linear module (5), and the tool rest assembly (2) comprises a tool apron (2-1) for mounting a turning tool and a hobbing assembly for mounting a hobbing cutter;

first drive shaft assembly (3) with second drive shaft assembly (4) set up respectively in the both sides of knife rest assembly (2), first drive shaft assembly (3) and second drive shaft assembly (4) are installed through horizontal sharp module (6) on frame (1), horizontal sharp module (6) with vertical sharp module (5) are perpendicular, first drive shaft assembly (3) with second drive shaft assembly (4) are used for dress chuck material and drive the material rotation of coiling, first drive shaft assembly (3) and second drive shaft assembly (4) have relative and coaxial dress card hole.

2. The valve turbo machining center of claim 1, wherein: the upper part of the tool apron (2-1) is provided with a T-shaped groove parallel to the vertical straight line module (5), and a turning tool is arranged on the tool apron (2-1) through the T-shaped groove.

3. The valve turbo machining center of claim 2, wherein: the hobbing component comprises a hobbing shaft seat (2-2), a hobbing shaft (2-3) and a hobbing driving motor (2-4), the hobbing shaft seat (2-2) is installed on the vertical linear module (5), the hobbing shaft (2-3) is installed on the hobbing shaft seat (2-2), the axis of the hobbing shaft (2-3) is perpendicular to the axis of a clamping hole of the first driving shaft assembly (3) and the axis of a clamping hole of the second driving shaft assembly (4), the hobbing shaft (2-3) is connected with the hobbing driving motor (2-4), the hobbing shaft (2-3) is driven to rotate by the hobbing driving motor (2-4), and a hobbing cutter is installed on the hobbing shaft (2-3).

4. The valve turbo machining center of claim 3, wherein: the hobbing shaft seat (2-2) comprises a base and a shaft box, the front part of the shaft box is provided with an opening, and two sides of the shaft box are provided with clamping holes which are opposite to the first driving shaft assembly (3) and the second driving shaft assembly (4) respectively and are provided with C-shaped openings.

5. The valve turbo machining center of claim 2, wherein: two sections of transverse linear modules are respectively arranged on two sides of the tool rest assembly (2).

6. The valve turbo machining center of claim 5, wherein: the first driving shaft assembly (3) and the second driving shaft assembly (4) comprise driving shaft seats (3-1), driving rotating shafts (3-2), rotating driving motors (3-3) and chucks (3-4); the driving rotating shaft (3-2) is assembled on the driving shaft seat (3-1) and can rotate around the axis of the driving shaft seat; the driving motor (3-3) is connected with the driving rotating shaft (3-2) and drives the driving rotating shaft to rotate; the chuck (3-4) is arranged on the driving rotating shaft (3-2), and the chuck (3-4) is used for containing chuck materials.

7. The valve turbo machining center of claim 6, wherein: the chucks (3-4) are power chucks.

Background

The valve is a control part in a fluid conveying system and has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like. Valves used in fluid control systems range in variety and size from the simplest shut-off valves to the variety of valves used in extremely complex autonomous systems. In the existing valve structures of various models, a transmission part for controlling the valve plate of the valve to open and close is a worm gear.

In the prior art, a worm wheel of a valve is machined by a lathe and a gear hobbing machine. Specifically, the plate material is clamped on a chuck of a lathe spindle, one end face of the plate material is turned firstly, after one end face is machined, the plate material is clamped secondarily, the other end face of the plate material is turned, and after the two end faces are machined, gear hobbing is conducted.

Above-mentioned traditional worm wheel course of working needs the secondary to adorn the card even cubic, and the machining precision and the machining efficiency of product all can receive the secondary to adorn the card influence, and the machining precision is not high, and machining efficiency hangs down.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a valve worm wheel machining center which solves the problems of low machining precision and low machining efficiency of the existing valve worm wheel.

The invention is realized in this way, a valve turbine machining center, characterized in that: the device comprises a rack, a tool rest assembly, a first driving shaft assembly and a second driving shaft assembly; the tool rest assembly is mounted on the rack through a vertical linear module and comprises a tool apron for mounting a turning tool and a hobbing component for mounting a hobbing cutter; the first driving shaft assembly and the second driving shaft assembly are arranged on two sides of the tool rest assembly respectively, the first driving shaft assembly and the second driving shaft assembly are installed on the rack through a transverse straight line module, the transverse straight line module is perpendicular to the vertical straight line module, the first driving shaft assembly and the second driving shaft assembly are used for clamping and driving a plate material to rotate, and the first driving shaft assembly and the second driving shaft assembly are provided with clamping holes which are opposite and coaxial.

In the above technical scheme, preferably, the upper portion of the tool apron is provided with a T-shaped groove parallel to the vertical straight line module, and the tool apron is provided with a turning tool through the T-shaped groove.

In the above technical scheme, preferably, the hobbing component includes a hobbing shaft seat, a hobbing shaft and a hobbing drive motor, the hobbing shaft seat is installed on the vertical linear module, the hobbing shaft is installed on the hobbing shaft seat, the axis of the hobbing shaft is perpendicular to the axes of the clamping holes of the first drive shaft assembly and the second drive shaft assembly, the hobbing shaft is connected with the hobbing drive motor, the hobbing shaft is driven by the hobbing drive motor to rotate, and a hobbing cutter is installed on the hobbing shaft.

In the above technical solution, preferably, the hobbing shaft seat includes a base and an axle box, a front portion of the axle box is open, and two sides of the axle box are respectively provided with a clamping hole corresponding to the first drive shaft assembly and the second drive shaft assembly and a C-shaped opening.

In the above technical solution, preferably, two sections of transverse linear modules are respectively disposed on two sides of the tool rest assembly.

In the above technical solution, preferably, the first driving shaft assembly and the second driving shaft assembly include a driving shaft seat, a driving rotating shaft, a rotation driving motor and a chuck; the driving rotating shaft is assembled on the driving shaft seat and can rotate around the axis of the driving shaft seat; the driving motor is connected with the driving rotating shaft and drives the driving rotating shaft to rotate; the chuck is installed on the drive rotating shaft and used for containing chuck materials.

In the above technical solution, preferably, the chuck is a power chuck.

The invention has the advantages and effects that:

the machining center is provided with the two driving shaft assemblies, the two driving shaft assemblies can independently move, and the two driving shaft assemblies can independently or jointly clamp and drive the coiled materials to rotate. The two driving shaft assemblies can be automatically switched and clamped by realizing material coiling. The two end faces of the coiled material can be respectively processed under the independent clamping state of the coiled material, and the hobbing processing of the coiled material can be carried out under the clamping state of the coiled material. Compared with the traditional manual secondary or even tertiary clamping step-by-step processing, the processing center fully automatically performs the processing action on the plate, the process is finished at one time, the clamping precision is high and stable, and the processing efficiency and the processing precision of the worm wheel can be effectively improved.

Drawings

FIG. 1 is a schematic diagram of the present invention.

In the figure, 1, a frame; 2. a tool holder assembly; 2-1, a tool apron; 2-2, hobbing shaft seats; 2-3, a gear hobbing shaft; 2-4, a gear hobbing driving motor; 3. a first drive shaft assembly; 3-1, driving shaft seats; 3-2, driving a rotating shaft; 3-3, rotating a driving motor; 3-4, chuck; 4. a second drive shaft assembly; 5. a vertical straight line module; 6. a transverse straight line module.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The invention particularly provides a valve worm wheel machining center which can automatically machine the worm wheel of a valve in the whole process and has high machining precision and high machining efficiency, aiming at solving the problems of low machining precision and low machining efficiency of the existing valve worm wheel. To further illustrate the structure of the present invention, the following detailed description is made with reference to the accompanying drawings:

referring to fig. 1, a valve turbine machining center includes a frame 1, a tool rest assembly 2, a first driving shaft assembly 3, and a second driving shaft assembly 4.

The frame 1 is a support frame body of a machine tool, in the embodiment, an oblique installation surface is arranged at the upper part of the frame 1, and the included angle between the installation surface and the horizontal plane is 15-60 degrees, so that an oblique body structure is formed. The frame 1 is a cast iron welding structure.

The tool rest assembly 2 is arranged on the frame 1 through a vertical straight line module 5. The vertical linear module 5 comprises a vertical linear guide rail, a vertical lead screw, a vertical sliding table and a vertical driving motor. The vertical linear guide rails are two vertical linear guide rails which are arranged in parallel and fixed in the middle of the mounting surface on the upper part of the frame to extend vertically. The axis of the vertical screw rod is parallel to the vertical linear guide rail and is arranged between the two linear guide rails. The vertical lead screw is installed on the installation surface of the rack in a mode of rotating around the axis of the vertical lead screw, namely a bearing seat is installed on the installation surface of the rack, two ends of the vertical lead screw are assembled on the bearing seat, and the vertical lead screw can rotate around the axis of the vertical lead screw. A vertical driving motor is installed on an installation surface of the rack, the vertical driving motor is installed on the rack and located above the vertical lead screw, an output shaft of the vertical driving motor is in transmission connection with the vertical lead screw, and the vertical driving motor drives the vertical lead screw to rotate. The vertical sliding table is assembled on the vertical linear guide rail and is combined with the vertical screw rod through threads, and the matching mode of the vertical sliding table and the vertical linear guide rail and the combination structure of the vertical sliding table and the vertical screw rod are conventional known technologies in the mechanical field. The vertical driving motor drives the vertical sliding table to move movably along the vertical linear guide rail.

First drive shaft assembly 3 and second drive shaft assembly 4 are installed in frame 1 through horizontal sharp module 6, and horizontal sharp module 6 is perpendicular with vertical sharp module 5, and first drive shaft assembly 3 and second drive shaft assembly 4 are used for dress chuck material and drive the chuck material and rotate, and first drive shaft assembly 3 and second drive shaft assembly 4 have relative and coaxial dress calorie of hole.

The tool holder assembly 2 comprises a tool holder 2-1 for mounting a turning tool and a hobbing assembly for mounting a hobbing cutter.

The upper part of the tool apron 2-1 is provided with a T-shaped groove parallel to the vertical straight line module, and a turning tool is arranged on the tool apron 2-1 through the T-shaped groove. The tool apron 2-1 is fixed on a vertical sliding table of the vertical linear module 5 through screws. The T-shaped groove is used for installing a turning tool, and the installation structure of the turning tool on the T-shaped groove belongs to the conventional known structure in the field.

The gear hobbing component comprises a gear hobbing shaft seat 2-2, a gear hobbing shaft 2-3 and a gear hobbing driving motor 2-4. The hobbing shaft seat 2-2 is arranged on the vertical linear module 5, the hobbing shaft 2-3 is arranged on the hobbing shaft seat 2-2, and the axis of the hobbing shaft 2-3 is vertical to the axes of the clamping holes of the first driving shaft assembly 3 and the second driving shaft assembly 4. The hobbing cutter shaft 2-3 is connected with a hobbing cutter driving electric machine 2-4, the hobbing cutter shaft 2-3 is driven by a hobbing cutter driving electric machine 2-4 to rotate, a hobbing cutter is arranged on the hobbing cutter shaft 2-3, and the installation mode of the hobbing cutter is the conventional known technology.

In this embodiment, the hobbing shaft seat 2-2 includes a base and an axle box, the base and the axle box are of an integrated structure and are fixed on the vertical sliding table of the vertical linear module 5 through screws. A transmission gear box is formed between the base and the vertical sliding table. Two end parts of the gear-rolling shaft 2-3 are arranged on the axle box through bearings, the gear-rolling shaft 2-3 can rotate around the axis of the gear-rolling shaft, and the lower end of the gear-rolling shaft 2-3 extends into the transmission gear box and is provided with gears. The gear hobbing driving motor 2-4 is installed on the base, and an output shaft of the gear hobbing driving motor 2-4 extends into the transmission gear box and is meshed with the gear hobbing shaft 2-3 to rotate through a gear.

The front part of the axle box is opened, and the two sides of the axle box are provided with clamping holes which are respectively opposite to the first driving shaft assembly 3 and the second driving shaft assembly 4, and the C-shaped opening is formed. The chucks of the first drive shaft assembly 3 and said second drive shaft assembly 4 are extendable through this opening.

The first driving shaft assembly 3 and the second driving shaft assembly 4 are respectively arranged at two sides of the tool rest assembly. In this embodiment, two sections of transverse linear modules are respectively disposed on two sides of the tool rest assembly 2. The two sections of transverse linear modules are positioned on the same extension straight line. The transverse linear module 6 comprises a transverse linear guide rail, a transverse screw rod, a transverse sliding table and a transverse driving motor. The structure and installation mode of the transverse straight line module 6 are the same as the principle of the vertical straight line module 5.

The first driving shaft assembly 3 and the second driving shaft assembly 4 comprise a driving shaft seat 3-1, a driving rotating shaft 3-2, a rotating driving motor 3-3 and a chuck 3-4. The driving rotating shaft 3-2 is assembled on the driving shaft seat 3-1 and can rotate around the axis of the driving shaft. The driving motor 3-4 is connected with the driving rotating shaft 3-2 and drives the driving rotating shaft to rotate. The chuck 3-4 is arranged on the driving rotating shaft 3-2 and used for containing chuck materials.

Specifically, the first drive shaft assembly 3 and the second drive shaft assembly 4 are component assemblies for clamping the coiled material and driving the coiled material to rotate around the axes thereof. Specifically, the mounting structure and the working principle between the driving rotating shaft 3-2 and the driving shaft seat 3-1 are the same as those of a traditional lathe spindle, the driving spindle drives a workpiece or a cutter to rotate, and a spindle component is composed of a spindle, a bearing, a transmission piece (a gear or a belt wheel) and the like. The device is mainly used for supporting transmission parts such as gears and belt wheels and transmitting motion and torque.

The chuck 3-4 is arranged on the driving rotating shaft 3-2, and the chuck 3-4 is a power chuck. As is well known to those skilled in the art, the chucks 3-4 are mechanical devices on a machine tool used to clamp a workpiece. The machine tool accessory clamps and positions a workpiece by utilizing the radial movement of movable clamping jaws uniformly distributed on a chuck body. The chuck 3-4 consists of a chuck body, a movable jaw and a jaw driving mechanism. The power chuck is a chuck with movable jaws driven by power and capable of being numerically controlled. The center of the chuck 3-4 is a clamping hole. The driving motor is a servo motor for a numerical control machine tool, and an output shaft of the driving motor is in transmission connection with the driving rotating shaft and is used for driving the rotating shaft to rotate.

The first driving shaft assembly 3 and the second driving shaft assembly 4 are respectively fixed on the transverse sliding tables of the left transverse linear module and the right transverse linear module by screws.

The first driving shaft assembly 3 is used for clamping the disc material, and the first driving shaft assembly 3 drives the disc material to rotate. And a turning tool on the tool apron 2-1 is used for turning the end surface of one side of the coiled material. The second driving shaft assembly 4 is connected with a chuck material in a switching mode, and a turning tool on the tool apron 2-1 is used for turning the end face of the other side of the chuck material. After turning of the coiled material is finished, the two side ends of the coiled material are clamped by the first driving shaft assembly 3 and the second driving shaft assembly 4 respectively, and the gear is hobbed on the excircle of the coiled material by the hob.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.