CN105798710A - A kind of CNC extruding wire tapping thread grinding machine - Google Patents

Abstract

The invention discloses a numerical control extrusion tapping screw grinder which comprises a controller and a mechanical system, wherein the controller is respectively and electrically connected with an A-axis servo motor, an X-axis servo motor, a Y-axis servo motor and a C-axis servo motor through drivers, the mechanical system comprises a lathe bed, a headstock used for fixing a workpiece, a workbench, a grinding carriage and a dressing grinding wheel, the A-axis servo motor is connected with a spindle of the headstock, the headstock is driven to drive the workpiece to axially rotate, the X-axis servo motor is arranged on the lathe bed, the workbench is driven to move left and right through a second ball screw, the Y-axis servo motor drives the grinding carriage through a third ball screw so as to drive the grinding wheel to move back and forth, and the C-axis servo motor drives the dressing grinding wheel through a fourth ball screw so as to automatically. The four-axis numerical control grinding machine is adopted, the movement and positioning of each part can be controlled and operated, the degree of automation is high, the grinding wheel finishing precision is high, the working surface of the grinding wheel is smooth, and the machining precision and efficiency are greatly improved.

Description

A kind of CNC extruding wire tapping thread grinding machine

technical field

The invention relates to the field of grinding machines, in particular to a numerically controlled extruding wire tapping thread grinding machine.

Background technique

Grinding machine is a common mechanical processing equipment. Ordinary grinding machines use grinding wheels to grind the surface of workpieces to improve the surface finish and precision of workpieces. Ordinary grinding machines have very small grinding allowances for workpieces, and the productivity is very low. It is impossible Grinding and shaping the workpiece directly. Because of the traditional grinding, the grinding wheel wears quickly. The grinding wheel must be dressed frequently with the help of grinding wheel dressing, so that the grinding wheel can regain the shape accuracy and sharpness of the surface. After dressing, due to the reduction in the size of the grinding wheel Small, the compensation amount of the grinding wheel is difficult to control, which affects the machining accuracy of the grinding, and has a greater impact on the profile grinding.

The traditional thread grinder is manually operated, and the relief grinding of the thread part is controlled by the shape of the cam. There are many items that need to be adjusted manually, the operation is more troublesome, the processing efficiency is relatively low, and the accuracy cannot meet the requirements of high-quality taps.

Contents of the invention

Aiming at the above-mentioned technical problems in the related art, the present invention proposes a numerically controlled extrusion wire tapping thread grinding machine to solve the above-mentioned problems.

For realizing above-mentioned technical purpose, technical scheme of the present invention is realized like this:

A CNC extrusion wire tapping thread grinder, including a controller and a mechanical system, the controller is electrically connected to the A-axis servo motor, the X-axis servo motor, the Y-axis servo motor, and the C-axis servo motor through a driver, and the machine The system includes a bed, a headstock for fixing the workpiece, a workbench, a grinding wheel frame and a dressing wheel. The A-axis servo motor is connected to the main shaft of the headstock, and drives the headstock to drive the workpiece to rotate axially. The X-axis servo motor Installed on the bed, drive the worktable to move left and right through the second ball screw, the Y-axis servo motor drives the grinding wheel frame through the third ball screw to drive the grinding wheel to move forward and backward, and the C-axis servo motor drives the dressing wheel through the fourth ball screw Automatically make up the trimming amount.

Further, a grating ruler is installed on the workbench.

Further, the controller drives the servo motors to run through their respective drivers, and the A-axis servo motor, X-axis servo motor, Y-axis servo motor, and C-axis servo motor are a four-axis linkage system.

Further, rolling linear guide rails are used between the workbench and the bed, between the workbench and the headstock, between the grinding wheel frame and the workbench, which can ensure the flexibility and precision of movement between components.

Further, it also includes a protective door, on which a protective cover is installed above the working area of the grinding machine and closes the working area of the grinding machine.

Further, the protective cover is provided with an oil extraction mist machine.

Further, a cooling system is arranged at the rear of the bed.

Further, the controller includes a liquid crystal display and operation input keys.

Beneficial effects of the present invention: the present invention adopts a four-axis numerical control grinding machine, the movement and positioning of each part can be controlled by numerical control, the degree of automation is high, the dressing precision of the grinding wheel is high, and the working surface of the grinding wheel is smooth; the oil mist machine system can effectively improve the working environment, The machining accuracy and efficiency have been greatly improved.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required in the embodiments. Obviously, the accompanying drawings in the following description are only some of the present invention. Embodiments, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

Fig. 1 is a structural schematic diagram 1 of a numerically controlled extrusion wire tapping thread grinding machine according to an embodiment of the present invention;

Fig. 2 is a structural schematic diagram II of a CNC extruded wire tapping thread grinding machine according to an embodiment of the present invention;

Fig. 3 is the third schematic structural view of the CNC extruded wire tapping thread grinding machine according to the embodiment of the present invention.

In the picture:

1. Controller; 2. Driver; 31. Bed; 32. Headstock; 33. Workbench; 34. Grinding wheel stand; 35. Dressing grinding wheel; 36. Grinding wheel; 11. A-axis servo motor; 12. X-axis servo Motor; 13. Y-axis servo motor; 14. C-axis servo motor; 4. Protective door; 5. Protective cover; 6. Cooling system;

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

As shown in Figures 1-3, a CNC extrusion thread grinding machine according to an embodiment of the present invention includes a controller 1 and a mechanical system, the controller 1 communicates with the A-axis servo motor 11, The X-axis servo motor 12, the Y-axis servo motor 13, and the C-axis servo motor 14 are electrically connected. The controller 1 includes a liquid crystal display 15 and operation input keys 16. The mechanical system includes a bed 31 for fixing workpieces. The head frame 32, workbench 33, grinding wheel frame 34 and dressing wheel 35, the A-axis servo motor 11 is connected to the main shaft of the head frame 32, the drive head frame 32 drives the workpiece to rotate axially, and the X-axis servo motor 12 is installed On the bed 31, the workbench 33 is driven to move left and right through the second ball screw. The grating scale is installed on the workbench 33. The Y-axis servo motor 13 drives the grinding wheel frame 34 through the third ball screw to drive the grinding wheel 36 forward and backward. Moving, the C-axis servo motor 14 drives the dressing wheel 35 through the ball screw to automatically make up the trimming amount.

The controller 1 drives the servo motors to run through their respective drivers 2, and the A-axis servo motor 11, the X-axis servo motor 12, the Y-axis servo motor 13, and the C-axis servo motor 14 form a four-axis linkage system.

Rolling linear guides that can ensure flexible and precise movement between the parts are used between the workbench 33 and the bed 31 , the workbench 33 and the headstock 32 , the grinding wheel frame 34 and the workbench 33 .

A cooling system 6 is arranged at the rear of the bed 31 .

It also includes a protective door 4 on which a protective cover 5 arranged above the working area of the grinder and closed above the working area of the grinder is installed, and an oil mist machine 7 is arranged on the protective cover 5 .

In the present invention, through numerical control linkage, the A-axis servo motor drives the tap to rotate, the X-axis servo motor controls the movement of the worktable left and right, and the Y-axis servo motor controls the front and rear movement of the grinding wheel to complete the thread relief grinding of the extruded wire tap. After dressing the grinding wheel There is a C-axis servo motor to automatically make up the trimming amount, which ensures the consistency of the size during continuous processing and can be controlled within 0.01mm. After 3 to 8 cycles of grinding, the thread part processing of an extruded tap is completed; the oil mist machine prevents the oil mist from spreading; the cooling system cools the cutting oil and the lubricating oil of the grinding wheel spindle to prevent the tapping during grinding Surface burns; prevent the temperature of the spindle lubricating oil from rising, causing the bearing bush to lock up.

The controller of the present invention adopts the British Cuiou controller, configures the Japanese Yaskawa driver, the system resolution reaches 0.0001mm, and is equipped with a grating ruler, and the repeat positioning accuracy is ≤0.002mm; using the Japanese THK high-precision screw rod, the grinding wheel linear speed reaches 70m/ s; the weight of the machine tool is 4 tons, and the rigidity is good; the LCD display operation panel is easy to operate, just change different processing parameters, and the number of grinding times and grinding wheel repair times can be set independently.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (8)

1. A CNC extrusion wire tapping thread grinder, characterized in that it includes a controller and a mechanical system, and the controller communicates with the A-axis servo motor, X-axis servo motor, Y-axis servo motor, and C-axis servo motor through a driver. Electromechanical connection, the mechanical system includes a bed, a headstock for fixing the workpiece, a workbench, a grinding wheel frame and a dressing wheel, the A-axis servo motor is connected to the main shaft of the headstock, and drives the headstock to drive the workpiece to rotate axially, The X-axis servo motor is installed on the bed and drives the table to move left and right through the second ball screw. The Y-axis servo motor drives the grinding wheel frame through the third ball screw to drive the grinding wheel to move forward and backward. The C-axis servo motor drives the grinding wheel through the ball screw. The dressing wheel is driven by four screw rods to automatically make up the dressing amount. 2. The CNC extrusion wire tapping thread grinding machine according to claim 1, characterized in that: a grating ruler is installed on the workbench. 3. The CNC extrusion wire tapping thread grinding machine according to claim 1, characterized in that: the controllers drive the servo motors to run through their respective drivers, A-axis servo motors, X-axis servo motors, Y-axis servo motors, C The shaft servo motor is a four-axis linkage system. 4. The CNC extrusion wire tapping thread grinding machine according to claim 1, characterized in that: between the workbench and the bed, between the workbench and the head frame, between the grinding wheel frame and the workbench, the movement between the parts can be guaranteed. Flexible and precision rolling linear guides. 5. The CNC extrusion wire tapping thread grinding machine according to claim 1, characterized in that: it also includes a protective door, and the protective door is equipped with a protective cover that is arranged above the working area of the grinding machine and closes the working area of the grinding machine . 6. The CNC extrusion wire tapping thread grinding machine according to claim 1, characterized in that: the protective cover is provided with an oil extraction mist machine. 7. The CNC extrusion wire tapping thread grinding machine according to claim 1, characterized in that: a cooling system is arranged at the rear of the bed. 8. The CNC extrusion wire tapping thread grinder according to claim 1, wherein the controller includes a liquid crystal display and operation input keys.