阅读说明：本技术 一种振动辅助无心磨削装置 (Vibration-assisted centerless grinding device ) 是由 吴耀 金滩 王兴中 于 2021-08-07 设计创作，主要内容包括：本发明公开了一种振动辅助无心磨削装置,属于磨削技术领域,包括收集箱、导轮、底座、振动源和侧护机构,所述底座上固定安装有收集箱与轮架,所述收集箱上固定安装有砂轮罩,砂轮罩的内部通过转轴转动安装有砂轮,轮架的内部通过转轴转动安装有导轮,所述底座的内部设置有振动源,所述振动源上安装有刀板,所述砂轮罩的侧壁上转动安装有侧护机构,所述砂轮与导轮之间位于刀板的上方设置有工件；本发明设计的振动辅助磨削方法,给刀板提供振动,减少砂轮与工件表面的摩擦作用,砂轮不易发生堵塞,并降低磨削温度,磨粒不断冲击工件,从而产生脆性破坏实现材料的去除,从而提高了磨削效率,缩短修整时间,延长了砂轮的使用寿命。(The invention discloses a vibration-assisted centerless grinding device, which belongs to the technical field of grinding and comprises a collecting box, a guide wheel, a base, a vibration source and a side protection mechanism, wherein the collecting box and a wheel carrier are fixedly arranged on the base; the vibration-assisted grinding method provided by the invention can provide vibration for the cutting board, reduce the friction between the grinding wheel and the surface of the workpiece, prevent the grinding wheel from being blocked, reduce the grinding temperature, and enable the grinding particles to continuously impact the workpiece, so that the brittle failure is generated to remove the material, the grinding efficiency is improved, the dressing time is shortened, and the service life of the grinding wheel is prolonged.)

1. The utility model provides a vibration is assisted centerless grinding device, includes collecting box (2), guide pulley (4), base (6), vibration source (7) and side and protects mechanism (8), its characterized in that: fixed mounting has collecting box (2) and wheel carrier (5) on base (6), fixed mounting has wheel guard (1) on collecting box (2), and the inside of wheel guard (1) is rotated through the pivot and is installed emery wheel (9), and guide pulley (4) are installed through the pivot rotation in the inside of wheel carrier (5), the inside of base (6) is provided with vibration source (7), install cutting board (10) on vibration source (7), rotate on the lateral wall of wheel guard (1) and install side protection mechanism (8), the top that lies in cutting board (10) between emery wheel (9) and guide pulley (4) is provided with work piece (3).

2. The vibration-assisted centerless grinding device of claim 1, wherein the side protection mechanism (8) is composed of a side mounting shaft (81), a shaping rod (83), a telescopic rod (84) and a side protection top shaft (85), the side mounting shaft (81) is fixedly mounted on the outer wall of one side of the shaping rod (83), and a torsion spring (82) is fixedly mounted on the side mounting shaft (81).

3. A vibration-assisted centerless grinding apparatus as claimed in claim 2, wherein the shaping rod (83) is fixedly mounted with an inner telescopic spring (86) inside, the inner wall of the shaping rod (83) is fixedly mounted with an inner guide rail (87), the inner guide rail (87) is slidably mounted with a telescopic rod (84), and one end of the inner telescopic spring (86) is fixedly connected with one end of the telescopic rod (84).

4. A vibration-assisted centerless grinding apparatus as claimed in claim 3, wherein the other end of the telescopic rod (84) is located outside the shaping rod (83), a side protection top shaft (85) is fixedly mounted on the side wall of the telescopic rod (84), and one end of the side protection top shaft (85) is tightly pressed with the side wall of the workpiece (3).

5. Use of a vibration assisted centerless grinding apparatus of any of claims 1 to 4, comprising the steps of:

s1, when the grinding wheel (9) and the guide wheel (4) grind the workpiece (3), the knife board (10) generates vibration to act on the workpiece (3) to form vibration-assisted grinding;

s2, arranging the vibration source (7) at any position of the knife board (10), namely the supporting system to form a vibration knife board for supporting, wherein the vibration form, the vibration power, the amplitude frequency and the like of the vibration knife board are adjusted according to the requirements of the grinding process;

s3, the vibration direction can be any direction or composite unordered vibration direction along the longitudinal direction, the transverse direction, the inclination and the like of the cutting board (10);

and S4, setting different vibration directions, frequencies and amplitudes according to the material and requirements of the workpiece (3) and other grinding parameters.

6. The use method of the vibration-assisted centerless grinding apparatus of claim 5, wherein in the step S1, the upper end face of the cutting board (10) is tangent to or attached to the surface of the workpiece (3) to be ground.

7. The method for using a vibration assisted centerless grinding apparatus of claim 5 wherein in said S1, the vibration support system of the blade (1) and vibration source (7) is removable.

8. The use method of a vibration assisted centerless grinding apparatus of claim 5 wherein in said S1, the circumferential surface or any angled bevel of the grinding wheel (9) is tangent to or conforms to the surface of the workpiece (3) to be ground.

9. The use method of a vibration-assisted centerless grinding apparatus of claim 5, wherein in the step S1, the circumferential surface or any angle inclined surface of the guide wheel (4) is tangent to or conforms to the surface of the workpiece (3) to be ground.

10. The use method of a vibration-assisted centerless grinding apparatus of claim 5, wherein in said S2, the grinding parameters include grinding parameters such as grinding wheel (9) rotation speed, spindle power, grinding depth, feed speed, etc., and the vibration parameters include vibration machining parameters such as vibration amplitude, frequency, direction, mode, etc.

Technical Field

The invention belongs to the technical field of grinding, and particularly relates to a vibration-assisted centerless grinding device.

Background

At present, generally, when cylindrical grinding is carried out, a workpiece is placed between a grinding wheel and a guide wheel, is supported by a knife board below the grinding wheel, and is driven by the guide wheel to rotate. In the existing centerless grinding technology, in order to obtain ideal shape tolerance, surface precision and high machining efficiency, the centerless grinding must be provided with a grinding wheel and a guide wheel which are high in rigidity and relatively large. In the prior art, the service life, the machining efficiency and the quality of the grinding wheel can be seriously influenced by the blockage of the grinding wheel, and the surface of a workpiece is easily burnt due to the high temperature of the centerless grinding machining.

Vibration-assisted grinding is a processing technology for applying a vibration source to promote the vibration of a workpiece in the common grinding process so as to carry out vibration grinding processing, can effectively reduce the grinding force and the grinding temperature in the processing process, and improves the surface roughness of the workpiece. And the vibration grinding technology can ensure that the grinding wheel is not easy to block, natural threshing is easier, the self-sharpening property of the grinding wheel is kept, the grinding force, the residual stress and the grinding temperature are reduced, grinding burn is avoided or reduced, the grinding efficiency is greatly improved, the quality of the machined surface of a workpiece is improved, the service life of the grinding wheel is prolonged, and the vibration-assisted centerless grinding method is an effective method for solving the problems.

Disclosure of Invention

The invention aims to: the vibration-assisted centerless grinding device aims to solve the problems that a traditional wind driven generator is not internally provided with any sound-insulation noise-reduction structure, a large amount of noise is generated when a common wind driven generator works, certain noise pollution is caused, and prevention and control cannot be achieved.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a vibration-assisted centerless grinding device, includes collecting box, guide pulley, base, vibration source and side protection mechanism, fixed mounting has collecting box and wheel carrier on the base, fixed mounting has the wheel guard on the collecting box, and the emery wheel is installed through the pivot rotation in the inside of wheel guard, and the guide pulley is installed through the pivot rotation in the inside of wheel carrier, the inside of base is provided with the vibration source, install the cutting board on the vibration source, rotate on the lateral wall of wheel guard and install side protection mechanism, the top that lies in the cutting board between emery wheel and the guide pulley is provided with the work piece.

As a further description of the above technical solution:

the side protection mechanism comprises side installation axle, shaping pole, telescopic link and side protection apical axis, fixed mounting has the side installation axle on the one side outer wall of shaping pole, fixed mounting has torsion spring on the side installation axle.

As a further description of the above technical solution:

the telescopic rod is characterized in that an inner telescopic spring is fixedly mounted inside the shaping rod, an inner guide rail is fixedly mounted on the inner wall of the shaping rod, a telescopic rod is slidably mounted on the inner guide rail, and one end of the inner telescopic spring is fixedly connected with one end of the telescopic rod.

As a further description of the above technical solution:

the other end of the telescopic rod is located on the outer side of the shaping rod, a side protection jacking shaft is fixedly mounted on the side wall of the telescopic rod, and one end of the side protection jacking shaft is tightly extruded with the side wall of the workpiece.

The invention also discloses a use method of the vibration-assisted centerless grinding device, which comprises the following steps:

s1, when the grinding wheel and the guide wheel grind the workpiece, the cutting board generates vibration to act on the workpiece to form vibration-assisted grinding;

s2, arranging a vibration source at any position of a knife board-supporting system to form a vibration knife board for supporting, wherein the vibration form, the vibration power, the amplitude frequency and the like of the vibration knife board are adjusted according to the requirements of the grinding process;

s3, the vibration direction can be any direction along the longitudinal direction, the transverse direction, the inclination and the like of the cutting board or a composite unordered vibration direction;

and S4, setting different vibration directions, frequencies and amplitudes according to the material and requirements of the workpiece and other grinding parameters.

As a further description of the above technical solution:

in S1, the upper end surface of the cutting board is tangent to or attached to the surface of the workpiece to be ground.

As a further description of the above technical solution:

in S1, the vibration support system including the blade and the vibration source is detachable.

As a further description of the above technical solution:

in S1, the circumferential surface or any angle inclined surface of the grinding wheel is tangent to or attached to the surface of the workpiece to be ground.

As a further description of the above technical solution:

in S1, the circumferential surface or any angle inclined surface of the guide wheel is tangent to or attached to the surface of the workpiece to be ground.

As a further description of the above technical solution:

in S2, the grinding parameters include grinding parameters such as wheel rotation speed, spindle power, grinding depth, and feed speed, and the vibration parameters include vibration processing parameters such as vibration amplitude, frequency, direction, and mode.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. according to the invention, through the designed vibration-assisted grinding method, vibration is provided for the cutting board, the friction effect between the grinding wheel and the surface of the workpiece is reduced, the grinding wheel is not easy to block, the grinding temperature is reduced, and the grinding particles continuously impact the workpiece, so that brittle failure is generated to remove materials, the grinding efficiency is improved, the dressing time is shortened, and the service life of the grinding wheel is prolonged.

2. According to the invention, through the designed grinding vibration effect, the grinding force is reduced, the residual stress of the grinding surface is reduced, the surface grinding crack is reduced or avoided, the grinding burn is avoided, and the quality of the surface of the workpiece is improved.

3. According to the vibration grinding method and the grinding vibration effect, the vibration-assisted centerless grinding method can be applied to the conventional centerless grinding machine, the supporting system, the cutting board and the vibration source can be detachably mounted on the conventional common centerless grinding machine, the development of a whole set of novel vibration-assisted grinding centerless grinding machine equipment can be realized, the universal applicability and the remarkable economic benefit are realized, and the vibration-assisted centerless grinding method and the vibration source are widely applied to workpiece centerless grinding processing.

4. According to the invention, by installing the side protection mechanism, when the workpiece is normally processed, the whole length of the side protection mechanism can be adjusted, and the side protection jacking shaft of the side protection mechanism can laterally jack the workpiece, so that the side jumping of the workpiece during processing can be effectively prevented, and the whole processing safety is ensured.

Drawings

Fig. 1 is a front view of a vibration-assisted centerless grinding apparatus.

Fig. 2 is a top partial cross-sectional view of a side guard mechanism in a vibration assisted centerless grinding apparatus.

Fig. 3 is an enlarged schematic view of a vibration-assisted centerless grinding apparatus at a.

Illustration of the drawings:

1. a grinding wheel cover; 2. a collection box; 3. a workpiece; 4. a guide wheel; 5. a wheel carrier; 6. a base; 7. a vibration source; 8. a side guard mechanism; 81. side installation shaft; 82. a torsion spring; 83. a sizing rod; 84. a telescopic rod; 85. a side protection top shaft; 86. an inner extension spring; 87. an inner guide rail; 9. a grinding wheel; 10. a knife board.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a vibration-assisted centerless grinding device comprises a collection box 2, a guide wheel 4, a base 6, a vibration source 7 and a side protection mechanism 8, wherein the collection box 2 and a wheel carrier 5 are fixedly mounted on the base 6, a grinding wheel cover 1 is fixedly mounted on the collection box 2, a grinding wheel 9 is rotatably mounted in the grinding wheel cover 1 through a rotating shaft, the guide wheel 4 is rotatably mounted in the wheel carrier 5 through the rotating shaft, the vibration source 7 is arranged in the base 6, a knife board 10 is mounted on the vibration source 7, the side protection mechanism 8 is rotatably mounted on the side wall of the grinding wheel cover 1, and a workpiece 3 is arranged between the grinding wheel 9 and the guide wheel 4 and above the knife board 10;

the side protection mechanism 8 is composed of a side installation shaft 81, a shaping rod 83, a telescopic rod 84 and a side protection top shaft 85, wherein the side installation shaft 81 is fixedly installed on the outer wall of one side of the shaping rod 83, a torsion spring 82 is fixedly installed on the side installation shaft 81, an inner telescopic spring 86 is fixedly installed inside the shaping rod 83, an inner guide rail 87 is fixedly installed on the inner wall of the shaping rod 83, a telescopic rod 84 is slidably installed on the inner guide rail 87, one end of the inner telescopic spring 86 is fixedly connected with one end of the telescopic rod 84, the other end of the telescopic rod 84 is positioned outside the shaping rod 83, a side protection top shaft 85 is fixedly installed on the side wall of the telescopic rod 84, one end of the side protection top shaft 85 is tightly extruded with the side wall of the workpiece 3, the side protection mechanism 8 is installed, and the side protection mechanism 8 is composed of the side installation shaft 81, the shaping rod 83, the telescopic rod 84 and the side protection top shaft 85, when the workpiece 3 is machined normally, the overall length of the side protection mechanism 8 can be adjusted, and the side protection jacking shaft 85 of the side protection mechanism 8 jacks the workpiece 3 laterally, so that the workpiece 3 can be effectively prevented from side jumping during machining, and the overall safety of machining is ensured;

the invention also discloses a use method of the vibration-assisted centerless grinding device, which comprises the following steps:

s1, when the grinding wheel 9 and the guide wheel 4 grind the workpiece 3, the knife board 10 vibrates to act on the workpiece 3 to form vibration-assisted grinding, the upper end face of the knife board 10 is tangent to or attached to the surface of the workpiece 3 to be ground, a vibration supporting system formed by the knife board 10 and the vibration source 7 can be disassembled, the circumferential face or any angle inclined face of the grinding wheel 9 is tangent to or attached to the surface of the workpiece 3 to be ground, and the circumferential face or any angle inclined face of the guide wheel 4 is tangent to or attached to the surface of the workpiece 3 to be ground;

s2, arranging a vibration source 7 at any position of a knife board 10-a supporting system to form a vibration knife board for supporting by the vibration source 7, adjusting the vibration form, vibration power, amplitude frequency and the like of the vibration knife board according to the grinding process requirements, wherein the grinding parameters comprise grinding parameters such as the rotating speed of a grinding wheel 9, the power of a main shaft, the grinding depth, the feeding speed and the like, and the vibration parameters comprise vibration processing parameters such as vibration amplitude, frequency, direction, mode and the like;

s3, the vibration direction can be any direction along the longitudinal direction, the transverse direction, the inclination and the like of the cutting board 10 or a composite unordered vibration direction;

and S4, setting different vibration directions, frequencies and amplitudes according to the material and requirements of the workpiece 3 and other grinding parameters.

The working principle is as follows: when in use, the knife board 10, namely the vibration supporting system is firstly installed on a common centerless grinding machine, the grinding mechanism is adjusted to enable the knife board 10 to contact a workpiece 3, then parameters to be ground, grinding requirements, vibration parameters such as vibration frequency, amplitude and vibration direction of vibration and the like are input, the grinding speed, the feeding speed and the grinding depth are set, after the setting of the parameters is completed, the centerless grinding machine and the vibrator are started, the grinding wheel 9 starts to grind the workpiece 3, the sensors detect various grinding parameters, the control center adjusts various grinding parameters of the centerless grinding machine according to the detected signals to enable the grinding parameters to be consistent with the set grinding parameters, closed-loop control is formed, the vibrator is started, the knife board 10 transmits the vibration effect to act on the surface of the workpiece 3 to start vibration-assisted centerless grinding, and simultaneously the sensors detect various grinding parameters and the vibration parameters and transmit the vibration parameters to the control center, when the workpiece 3 is machined normally, the whole length of the side protection mechanism 8 can be adjusted, and the side protection jacking shaft 85 of the side protection mechanism 8 can laterally jack the workpiece 3, so that the workpiece 3 can be effectively prevented from side jumping during machining, and the overall safety of machining is ensured.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.