CN204295068U - Numerical control Cycloidal Wheel gear form-grinding machine - Google Patents

Abstract

The utility model provides a numerically controlled cycloid wheel forming grinding wheel gear grinding machine, which includes a machine base, on which a column is arranged, and a guide sliding seat is installed on the column to guide and slide in the vertical direction, and a grinding wheel is fixedly installed on the guiding slide seat. , The top of the column is equipped with a grinding wheel dressing device, the top of the column is also provided with a reversing pulley frame, and the guide slide is connected with a counterweight device through a flexible transmission member installed on the reversing pulley frame. The gear grinding machine of the utility model can make the grinding wheel move up and down smoothly through the counterweight device connected with the guide slide when the grinding wheel moves up and down with the guide slide to grind the processed cycloid wheel, and the driving force is reduced , will not form an excessive load to the servo motor used to drive the grinding wheel to move up and down, protect the servo motor and prolong the service life of the guide rail.

Description

CNC Cycloid Forming Grinding Wheel Gear Grinding Machine

technical field

  The utility model relates to the technical field of grinding processing, in particular to a numerically controlled cycloid wheel forming grinding wheel gear grinding machine.

Background technique

With the rapid development of today's science and technology, the entire modern industry is constantly developing in the direction of high technology, high precision, and high intelligence, especially in technical fields that require high motion precision, such as industrial robots. The development and breakthroughs in these fields of high motion precision all depend on transmission devices with high transmission precision. The RV reducer is an important reduction device in industrial robots, and the key component that determines the accuracy of the RV reducer is the cycloid wheel. confidential status. Therefore, in order to adapt to the development requirements of modern industrial robots, it is necessary to develop a cycloid wheel CNC forming grinding wheel gear grinding machine.

The Chinese invention patent with the notification number CN102773565 discloses a CNC forming grinding wheel gear grinding machine. The fixing device for fixing the workpiece. The vertically extending sliding guide rail is provided on the side facing the fixing device on the column. The column is slid through the sliding guide rail and equipped with a grinding wheel fixing seat installed with a grinding wheel. The upper end of the column is provided with a horizontal extension. The sliding guide rail, the vertical column slides through the horizontal guide rail and is equipped with a dressing wheel for dressing the grinding wheel. When this CNC shaped grinding wheel gear grinding machine is in use, after the grinding wheel has been used for a period of time, it can be directly ground by the dressing wheel. Grinding contours can be trimmed without changing the grinding wheel. Because the grinding resistance of the grinding wheel in the prior art is very large during grinding, the common problem is: when the grinding wheel moves up and down with the guide slide to grind the cycloid wheel The servo motor of the guide slide seat has a large load. When grinding the cycloid wheel, because the contact surface of the grinding wheel is wider, the grinding resistance is larger than that of the involute gear. It is easy to burn out the servo motor and reduce the reliability of the machine tool. Increased maintenance costs.

Utility model content

The utility model provides a numerically controlled cycloid wheel forming grinding wheel gear grinding machine capable of reducing the load of a servo motor of a guiding slide seat.

The CNC cycloid forming grinding wheel gear grinding machine of the utility model adopts the following technical scheme: the CNC cycloid forming grinding wheel gear grinding machine includes a base, and the base is provided with a column, and the column is guided in the vertical direction Slidingly equipped with a guide slide, a grinding wheel is fixedly installed on the guide slide, and a grinding wheel dressing device is installed on the top of the column, and it is characterized in that the top of the column is also provided with a reversing pulley frame. The guide slide is connected with a counterweight device through a flexible transmission member mounted on the reversing pulley frame.

The reversing pulley frame is composed of two pulley frame monomers and the two pulley frame monomers are respectively located on the front and rear sides of the column. The trimming device base, one of the two pulley frame units is located between the two supporting risers.

The guide sliding seat is guided and assembled on the left side of the column, and the counterweight device is located on the right side of the column.

The counterweight device is a hydraulic cylinder extending up and down.

The guide slide is driven to guide and move in the vertical direction by a guide slide servo motor arranged at the top of the column, and the guide slide servo motor is located between two reversing pulley frames.

The top of the column of the CNC cycloid wheel forming grinding wheel gear grinding machine of the utility model is provided with a reversing pulley frame, and the guide slide is connected with a counterweight device through a flexible transmission member installed on the reversing pulley frame, so that the grinding wheel When grinding the cycloidal wheel as the guide slide moves up and down, the counterweight device connected with the guide slide can reduce the resistance of the grinding wheel to move up and down, and will not give the servo used to drive the grinding wheel to move up and down. The excessive load of the motor helps to protect the servo motor and improve the service life of the guide rail.

Further, the reversing pulley frame is composed of two pulley frame monomers and the two pulley frame monomers are respectively located on the front and rear sides of the column, and the grinding wheel dressing device includes a dressing composed of two supporting vertical plates arranged at intervals in the front and rear directions. The base of the device, one of the two pulley frame units, is positioned between the two support risers. Such a structural design makes the structure of the entire gear grinding machine reasonable, reduces the volume of the gear grinding machine to the greatest extent, saves manufacturing materials, and reduces manufacturing costs.

Description of drawings

Fig. 1 is a structural schematic diagram of an embodiment of a numerically controlled cycloid wheel forming grinding wheel gear grinding machine of the present invention.

Detailed ways

The embodiment of the numerical control cycloid gear forming gear grinding machine of the present utility model: as shown in Fig. The slide plate 3 on the guide rail, the slide plate 3 is equipped with a workpiece turning part 4 for installing the cycloid wheel 5 to be processed, and the upper surface of the workpiece turning part 4 is the cycloid wheel mounting surface to be processed horizontally. When in use, the axis of the cycloid wheel to be processed extends vertically and is fixedly installed on the workpiece turning part 4. The left end of the base 1 is also equipped with a workpiece turning part servo motor 2 for driving the turning part of the workpiece to move left and right on the sliding guide rail. The rotary part servo motor 2 drives the workpiece rotary part 4 to move left and right by transmitting the torque to the ball screw. The right end of the base 1 is provided with a column 14 extending in the vertical direction, and the left side of the column 14 is provided with a guide rail extending up and down. 13. The guiding slide on the guide rail 13 is equipped with a guide slide 12, and the guide slide 12 is fixedly installed with a grinding wheel 6 that moves up and down with it. The top of the column 14 is provided with a guide for driving the guide slide 12 to move up and down. The slider servo motor 10 and the guide slider servo motor 10 are located in the middle area of the top of the column 14. The guide slider servo motor 10 transmits the torque to the ball screw and drives the guide slider 12 to move up and down. When the workpiece turning part 4 moves to the right to the processing station, the grinding wheel 6 moves up and down with the guide slide 12 and grinds the cycloid wheel to be processed. The reversing pulley frame 11, the reversing pulley frame 11 includes two pulley frame monomers respectively located on the front and rear sides of the column, and the guide slider servo motor 10 is located between the two pulley frame monomers. Of course, the guide slider servo The position of the motor cannot be set at other positions, and in other embodiments it can be designed according to actual needs. The right side of the column 14 is fixedly equipped with a counterweight device for guiding the sliding seat. Preferably, the counterweight device is two hydraulic cylinders 15 extending in the up and down direction, and the hydraulic cylinders 15 pass through the transmission chain on the corresponding pulley frame unit Respectively connect the front and rear sides of the guide slide on the left side of the column, and the hydraulic cylinder 15 provides tension to the transmission chain to reduce the load on the guide slide servo motor when the guide slide 12 rises. Of course, the counterweight device can be other The device or mechanism that provides upward force to the guide slide, such as a cylinder, etc., the transmission chain can be replaced by a transmission belt, and at this time, the sprocket on the reversing pulley frame can be replaced with a pulley accordingly. When the guide slider servo motor 10 drives the guide slider 12 to move up and down, the hydraulic cylinder 15 can provide the same force as the guide slider gravity and grinding force, which reduces the load on the guide slider servo motor 10 and has a greater impact on the guide slider. The seat servo motor 10 plays the role of protection, and the upper end of the column 14 is equipped with a grinding wheel dressing device. The grinding wheel dressing device includes a dressing device base 9, and the dressing device base 9 is composed of two front and rear relatively spaced vertical plates and fixedly connected two vertical plates. The horizontal plate is composed of a horizontal plate parallel to the upper surface of the column and fixed on the upper surface of the column. One of the pulley frames of the reversing pulley frame is located between the vertical plates of the two trimming device bases, and the other pulley frame is single The body is located on the front side of the dressing device base, and the dressing device base 9 is equipped with a dressing wheel 7 for guiding and moving in the front and rear direction, and the rear side of the dressing device base 9 is provided with a grinding wheel dressing device servo motor 8 for driving the dressing wheel 7 to move in the front and rear direction After the grinding wheel 6 has been used for a period of time and the grinding profile changes, the grinding wheel 6 is driven to move upward through the guide slide servo motor 10, and the dressing wheel 7 is driven forward by the servo motor 8 of the grinding wheel dressing device through the ball screw The resultant movement is formed to dress the grinding profile of the grinding wheel.

In this embodiment, a single pulley frame of the reversing pulley frame is positioned at the hollow position between the two vertical plates of the trimming device base 9. In other embodiments, it can also be located at other positions or only one pulley frame and A set of counterweight devices does not affect the operation of the entire gear grinding machine, and this embodiment only provides a preferred solution.

In this embodiment, the guide slide is arranged on the left side of the upright, and the counterweight device is arranged on the right side of the upright. In other embodiments, the counterweight device can be arranged in other positions, and this embodiment just provides a preferred solution.

When the CNC cycloid wheel forming grinding wheel gear grinding machine of the utility model processes the cycloid wheel to be processed, firstly, the cycloid wheel to be processed is correctly installed on the installation surface of the cycloid wheel to be processed on the turning part of the workpiece, and then the machine tool is started , the workpiece rotary part is driven by the servo motor of the workpiece rotary part to move to the grinding station below the grinding wheel, and the guide slide servo motor drives the grinding wheel down the column and grinds the tooth groove of the cycloid wheel. When the center of the grinding wheel is lower than the lower end surface of the cycloid wheel, the tooth groove of the cycloid wheel is grinded upwards, and this action is repeated until the grinding of the tooth groove of the cycloid wheel to be processed is completed. At this time, the grinding wheel has moved up and left the tooth groove of the cycloid wheel, and the rotating part of the workpiece will drive the cycloid wheel to turn through the set angle, and then the grinding wheel repeats the above action to process adjacent tooth grooves, and so on until all the tooth grooves are cycled. All are ground; when the grinding wheel needs to be dressed, the servo motor of the guide slide seat drives the grinding wheel to move vertically upwards, and the servo motor of the grinding wheel dressing device will drive the dressing diamond wheel to move forward to form a synthetic motion and adjust the high-speed rotating grinding wheel. The grinding wheel is trimmed, and the processed surface of the grinding wheel is trimmed to a shape consistent with the tooth groove of the cycloidal wheel being processed.

A numerically controlled cycloid wheel forming gear grinding machine of the utility model is equipped with grinding wheel dressing software that can be ground by forming method for different cycloid wheels, the processing range is large, and at the same time, the accuracy of the processed cycloid wheel can be effectively guaranteed And high processing efficiency, the right side of the column is equipped with a grinding wheel counterweight device, which makes the grinding wheel move up and down more smoothly during grinding, reduces the driving force of the drive motor, and avoids it from being burned due to overload. Playing a protective role, the reversing pulley frame is composed of two pulley frame monomers and the two pulley frame monomers are respectively located on the front and rear sides of the column, and one of the two pulley frame monomers is located between the two support vertical plates , so that the structure of the whole gear grinding machine is set reasonably, the manufacturing materials are saved, the manufacturing cost is reduced, the space utilization of the column of the gear grinding machine is more reasonable, and the volume of the whole gear grinding machine is reduced.

Claims (5)

1. CNC cycloidal wheel forming grinding wheel gear grinding machine, including a machine base, on which a column is arranged, and a guide slide is installed on the guide slide in the vertical direction on the guide slide, and the guide slide is fixedly installed with Grinding grinding wheels, the top of the column is equipped with a grinding wheel dressing device, and it is characterized in that the top of the column is also provided with a reversing pulley frame, and the guide slide is driven by a flexible transmission member installed on the reversing pulley frame. A counterweight is attached. 2. According to claim 1, the CNC cycloid wheel forming grinding wheel gear grinding machine is characterized in that, the reversing pulley frame is composed of two pulley frame monomers and the two pulley frame monomers are respectively located on the front and rear sides of the column, The grinding wheel dressing device includes a dressing device base composed of two support vertical plates arranged at intervals in the front and back direction, and one of the two pulley frame monomers is located between the two support vertical plates. 3. According to claim 1, the CNC cycloid wheel forming grinding wheel gear grinding machine is characterized in that, the guide sliding seat is guided and assembled on the left side of the column, and the counterweight device is located on the right side of the column. 4. According to claim 1, the CNC cycloid wheel forming grinding wheel gear grinding machine is characterized in that the counterweight device is a hydraulic cylinder extending up and down. 5. According to any one of claims 1-4, the CNC cycloidal wheel forming grinding wheel gear grinding machine is characterized in that the guide slide is guided and moved in the vertical direction by the drive of the guide slide servo motor arranged at the top of the column , the guide slide servo motor is located between the two reversing pulley frames.