阅读说明：本技术 一种长轴的自动磨削抛光装置 (Automatic grinding and polishing device for long shaft ) 是由 张辽 于 2019-11-28 设计创作，主要内容包括：本发明公开了一种长轴的自动磨削抛光装置,包括机体,机体10中设有磨削腔72,磨削腔72上侧设有相通的输送腔71,输送腔71左侧设有相通的放置腔70,放置腔70中设有磨削抛光的磨削装置77,本装置可对长轴多处支撑,较少轴的弯曲程度,降低了长轴加工时产生的多种缺陷,同时装置内的若干弹簧和扭簧等部件可使装置对多种直径的长轴进行加工,增加了装置的通用性,本装置使用机械结构,保证了装置的可靠性和稳定性。(The invention discloses an automatic grinding and polishing device for a long shaft, which comprises a machine body, wherein a grinding cavity 72 is arranged in the machine body 10, a communicated conveying cavity 71 is arranged at the upper side of the grinding cavity 72, a communicated placing cavity 70 is arranged at the left side of the conveying cavity 71, and a grinding device 77 for grinding and polishing is arranged in the placing cavity 70.)

1. The utility model provides an automatic grinding burnishing device of major axis, includes the organism, its characterized in that: a grinding cavity is arranged in the machine body, a communicated conveying cavity is arranged on the upper side of the grinding cavity, a communicated placing cavity is arranged on the left side of the conveying cavity, and a grinding device for grinding and polishing is arranged in the placing cavity;

the grinding device comprises a main motor fixedly arranged on the lower side wall of the grinding cavity, the upper side of the main motor is in power connection with a motor shaft, a first belt wheel is fixedly arranged on the motor shaft, a second bevel gear fixedly connected on the motor shaft is arranged on the upper side of the first belt wheel, the lower side wall of the grinding cavity is in rotary connection with a first wheel shaft, a first auxiliary wheel is fixedly arranged on the first wheel shaft, a first belt is connected between the first auxiliary wheel and the first belt wheel, the right side wall of the grinding cavity is in rotary connection with a second wheel shaft, the left side of the second wheel shaft is fixedly provided with a second bevel gear meshed with the first bevel gear, the right side of the second bevel gear is sequentially provided with three second belt wheels fixedly connected on the second wheel shaft from left to right, the rear side wall of the grinding cavity is fixedly provided with three small support plates, and each small support block is fixedly arranged on each small, a support lantern ring which is rotatably connected with the second wheel shaft is fixedly arranged on the small support block, a rotating lantern ring is rotatably connected onto the support lantern ring, and a rotating rod is fixedly arranged on the rotating lantern ring;

the left side of the placing cavity is provided with a communicated inlet, the right side of the conveying cavity is provided with a communicated outlet, and the conveying cavity is internally provided with a conveying device for conveying the long shaft.

2. The automatic grinding and polishing device for long shafts according to claim 1, characterized in that: the conveying device comprises three large supporting plates fixedly arranged on the rear side wall of the grinding cavity, two large supporting blocks are fixedly arranged on each large supporting plate respectively, a second gear shaft is rotatably connected in the two large supporting blocks on the left side, a third gear shaft is rotatably connected in the two large supporting blocks in the middle, a fourth gear shaft is rotatably connected in the two large supporting blocks on the right side, universal joints are fixedly arranged on the upper side and the lower side of the second gear shaft respectively, a third belt wheel is fixedly arranged in the second gear shaft, a second gear fixedly connected on the second gear shaft is arranged on the lower side of the third belt wheel, a first gear meshed with the second gear is fixedly arranged on the upper side of the first gear shaft, universal joints are fixedly arranged on the upper side and the lower side of the third belt wheel, a third auxiliary gear is fixedly arranged in the third wheel shaft, and a fourth belt wheel fixedly connected on the third gear shaft is arranged on the lower side of the third auxiliary gear shaft, a third belt is connected between the third auxiliary wheel and the third belt wheel, universal joints are fixedly arranged on the upper side and the lower side of the fourth wheel shaft, a fourth auxiliary wheel is fixedly arranged in the fourth wheel shaft, a fourth belt is connected between the fourth auxiliary wheel and the fourth belt wheel, a universal rotating shaft is hinged to each universal joint, and a conveying wheel is fixedly arranged on each universal rotating shaft.

3. The automatic grinding and polishing device for long shafts according to claim 1, characterized in that: six fixed ejection columns which are symmetrical in pairs are fixedly arranged on the front side wall of the conveying cavity, a moving rod is connected in the fixed ejection columns in a sliding manner, a fixed spring is connected between the moving rod and the fixed ejection columns, a fixed ring is fixedly arranged between the two moving rods which are symmetrical up and down, a rough grinding ring is rotationally connected in the fixed ring on the left side, an adjusting ring is fixedly arranged on the left side of the rough grinding ring, a grinding screw rod is rotationally connected on the outer side of the rough grinding ring, a rotating handle is fixedly arranged on the lower side of the grinding screw rod, a grinding screw sleeve is rotationally connected on the grinding screw rod, a rough grinding rod is fixedly arranged on the grinding screw sleeve, a rough grinding block is fixedly arranged on the upper side of the rough grinding rod, the rough grinding block is a special rough grinding material, a fine grinding ring is rotationally connected in the fixed ring in the middle, a grinding screw rod is rotationally connected on, the grinding screw is sleeved with a fine grinding rod, the upper side of the fine grinding rod is fixedly provided with a fine grinding block, the fine grinding block is made of a fine grinding special material, the right side of the fine grinding block is internally and rotatably connected with a polishing ring, a polishing rod is slidably connected in the polishing ring, a polishing spring is connected between the polishing rod and the polishing ring, the rear side of the polishing rod is fixedly provided with a polishing block, the polishing block is made of a polishing special material, the rough grinding ring, the fine grinding ring and the right side of the polishing ring are respectively and fixedly provided with a belt wheel ring, each belt wheel ring and a second belt are connected between the second belt wheels, a rotating wheel shaft is rotatably connected onto the rotating rod, a rotating belt wheel in contact with the second belt wheel is fixedly arranged on the rotating wheel shaft, and a torsion spring is connected between the rotating ring and the supporting ring to enable the second belt to keep a tensioning state.

4. The automatic grinding and polishing device for long shafts according to claim 1, characterized in that: the rear side wall of the placing cavity is fixedly provided with a supporting column, a placing plate is fixedly arranged on the supporting column, a long shaft can enter the device through the inlet, and finally the long shaft can be sent out through the outlet.

Technical Field

The invention relates to the related field of grinding and polishing, in particular to an automatic grinding and polishing device for a long shaft.

Background

At present, with the development of society, the requirement for long shaft processing is higher and higher, wherein the grinding and polishing process is an important step, the grinding is a processing method of cutting off redundant materials on a workpiece by using an abrasive material and a grinding tool, the grinding processing is one of material removing methods which are widely applied, the polishing is to remove an extremely thin layer of metal on a grinding surface of a sample, the polishing is often used for enhancing the appearance of a product, preventing the pollution of an instrument, removing oxidation, creating a reflecting surface or preventing a corrosion pipeline, the long shaft is generally fixed on a machine tool, and the shaft is partially ground and polished by a grinding wheel, and the long shaft is easy to generate defects of bending waist drum shape, polygon, bamboo joint shape and the like due to the overlong shaft.

Disclosure of Invention

The invention aims to provide an automatic grinding and polishing device for a long shaft, which solves the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the automatic grinding and polishing device for the long shaft comprises a machine body, wherein a grinding cavity is arranged in the machine body, a communicated conveying cavity is arranged on the upper side of the grinding cavity, a communicated placing cavity is arranged on the left side of the conveying cavity, and a grinding device for grinding and polishing is arranged in the placing cavity;

the grinding device comprises a main motor fixedly arranged on the lower side wall of the grinding cavity, the upper side of the main motor is in power connection with a motor shaft, a first belt wheel is fixedly arranged on the motor shaft, a second bevel gear fixedly connected on the motor shaft is arranged on the upper side of the first belt wheel, the lower side wall of the grinding cavity is in rotary connection with a first wheel shaft, a first auxiliary wheel is fixedly arranged on the first wheel shaft, a first belt is connected between the first auxiliary wheel and the first belt wheel, the right side wall of the grinding cavity is in rotary connection with a second wheel shaft, the left side of the second wheel shaft is fixedly provided with a second bevel gear meshed with the first bevel gear, the right side of the second bevel gear is sequentially provided with three second belt wheels fixedly connected on the second wheel shaft from left to right, the rear side wall of the grinding cavity is fixedly provided with three small support plates, and each small support block is fixedly arranged on each small, a support lantern ring which is rotatably connected with the second wheel shaft is fixedly arranged on the small support block, a rotating lantern ring is rotatably connected onto the support lantern ring, and a rotating rod is fixedly arranged on the rotating lantern ring;

the left side of the placing cavity is provided with a communicated inlet, the right side of the conveying cavity is provided with a communicated outlet, and the conveying cavity is internally provided with a conveying device for conveying the long shaft.

On the basis of the technical scheme, the conveying device comprises three large supporting plates fixedly arranged on the rear side wall of the grinding cavity, two large supporting blocks are fixedly arranged on each large supporting plate respectively, a second gear shaft is rotatably connected in the two large supporting blocks on the left side, a third gear shaft is rotatably connected in the two large supporting blocks in the middle, a fourth gear shaft is rotatably connected in the two large supporting blocks on the right side, universal joints are fixedly arranged on the upper side and the lower side of the second gear shaft respectively, a third belt wheel is fixedly arranged in the second gear shaft, a second gear fixedly connected on the second gear shaft is arranged on the lower side of the third belt wheel, a first gear meshed with the second gear is fixedly arranged on the upper side of the first gear shaft, universal joints are fixedly arranged on the upper side and the lower side of the third belt wheel, a third auxiliary gear is fixedly arranged in the third gear shaft, and a fourth belt wheel fixedly connected on the third gear shaft is arranged on the lower side of the third auxiliary gear, a third belt is connected between the third auxiliary wheel and the third belt wheel, universal joints are fixedly arranged on the upper side and the lower side of the fourth wheel shaft, a fourth auxiliary wheel is fixedly arranged in the fourth wheel shaft, a fourth belt is connected between the fourth auxiliary wheel and the fourth belt wheel, a universal rotating shaft is hinged to each universal joint, and a conveying wheel is fixedly arranged on each universal rotating shaft.

On the basis of the technical scheme, six fixed ejection columns which are symmetrical in pairs are fixedly arranged on the front side wall of the conveying cavity, a moving rod is connected in each fixed ejection column in a sliding manner, a fixed spring is connected between the moving rod and the fixed ejection column, two moving rods which are symmetrical up and down are fixedly provided with a fixed ring, the left fixed ring is rotatably connected with a rough grinding ring, the left side of the rough grinding ring is fixedly provided with an adjusting ring, the outer side of the rough grinding ring is rotatably connected with a grinding screw rod, the lower side of the grinding screw rod is fixedly provided with a rotating handle, the grinding screw rod is rotatably connected with a grinding screw sleeve, the grinding screw sleeve is fixedly provided with a rough grinding rod, the upper side of the rough grinding rod is fixedly provided with a rough grinding block which is made of a special rough grinding material, the middle part of the fixed ring is rotatably connected with a fine grinding ring, the outer side of the fine grinding ring is rotatably connected with, the grinding screw is sleeved with a fine grinding rod, the upper side of the fine grinding rod is fixedly provided with a fine grinding block, the fine grinding block is made of a fine grinding special material, the right side of the fine grinding block is internally and rotatably connected with a polishing ring, a polishing rod is slidably connected in the polishing ring, a polishing spring is connected between the polishing rod and the polishing ring, the rear side of the polishing rod is fixedly provided with a polishing block, the polishing block is made of a polishing special material, the rough grinding ring, the fine grinding ring and the right side of the polishing ring are respectively and fixedly provided with a belt wheel ring, each belt wheel ring and a second belt are connected between the second belt wheels, a rotating wheel shaft is rotatably connected onto the rotating rod, a rotating belt wheel in contact with the second belt wheel is fixedly arranged on the rotating wheel shaft, and a torsion spring is connected between the rotating ring and the supporting ring to enable the second belt to keep a tensioning state.

On the basis of the technical scheme, a supporting column is fixedly arranged on the rear side wall of the placing cavity, a placing plate is fixedly arranged on the supporting column, and a long shaft can enter the device through the inlet and can be finally sent out through the outlet.

In conclusion, the beneficial effects of the invention are as follows: this device can carry out grinding and polishing to the major axis simultaneously, wherein conveyor can get into major axis automatic transmission entering device, automatic output at last, grinding device can carry out the corase grind and the correct grinding to the major axis, accomplish polishing process simultaneously, save process time greatly, improve machining efficiency, this device can support many places of major axis, the crooked degree of less axle, the multiple defect that produces has reduced the major axis and has processed man-hour, parts such as a plurality of springs in the device and torsional spring can make the device process the major axis of multiple diameter simultaneously, the commonality of device has been increased, this device uses mechanical structure, the reliability and the stability of device have been guaranteed.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic overall cross-sectional front view of an automatic grinding and polishing apparatus for long shafts according to the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1 in accordance with the present invention;

FIG. 4 is a cross-sectional view taken along line C-C of FIG. 2 in accordance with the present invention;

fig. 5 is a cross-sectional view taken along the direction D-D of fig. 2 in accordance with the present invention.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

The invention will now be described in detail with reference to fig. 1-5, for convenience of description, the following orientations will now be defined: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

Referring to fig. 1-5, an embodiment of the present invention is shown: an automatic grinding and polishing device for a long shaft comprises a machine body 10, wherein a grinding cavity 72 is arranged in the machine body 10, a communicated conveying cavity 71 is arranged on the upper side of the grinding cavity 72, a communicated placing cavity 70 is arranged on the left side of the conveying cavity 71, a grinding device 77 for grinding and polishing is arranged in the placing cavity 70, the grinding device 77 comprises a main motor 11 fixedly arranged on the lower side wall of the grinding cavity 72, the upper side of the main motor 11 is in power connection with a motor shaft 12, a first belt wheel 13 is fixedly arranged on the motor shaft 12, a second bevel gear 18 fixedly connected on the motor shaft 12 is arranged on the upper side of the first belt wheel 13, a first wheel shaft 14 is rotatably connected on the lower side wall of the grinding cavity 72, a first auxiliary wheel 16 is fixedly arranged on the first wheel shaft 14, a first belt 15 is connected between the first auxiliary wheel 16 and the first belt wheel 13, and a second wheel shaft 20 is rotatably connected on the right side wall of the grinding, the left side of the second wheel shaft 20 is fixedly provided with a second bevel gear 18 meshed with the first bevel gear 17, the right side of the second bevel gear 18 is sequentially provided with three second belt wheels 19 fixedly connected to the second wheel shaft 20 from left to right, the rear side wall of the grinding cavity 72 is fixedly provided with three small support plates 35, each small support plate 35 is fixedly provided with a small support block 57, a support lantern ring 36 rotatably connected to the second wheel shaft 20 is fixedly arranged on each small support block 57, a rotating lantern ring 37 is rotatably connected to the support lantern ring 36, a rotating rod 38 is fixedly arranged on the rotating lantern ring 37, the left side of the placing cavity 70 is provided with a communicated inlet 74, the right side of the conveying cavity 71 is provided with a communicated outlet 75, and a conveying device 76 for conveying long shafts is arranged in the conveying cavity 71.

In addition, in one embodiment, the conveying device 76 includes three large support plates 32 fixedly installed on the rear side wall of the grinding chamber 72, two large support blocks 31 are fixedly installed on each large support plate 32, a second gear shaft 39 is rotatably connected to the two large support blocks 31 on the left side, a third gear shaft 29 is rotatably connected to the two large support blocks 31 in the middle, a second gear shaft 30 is rotatably connected to the two large support blocks 31 on the right side, universal joints 33 are fixedly installed on the upper and lower sides of the second gear shaft 39, a third gear 23 is fixedly installed in the second gear shaft 39, a second gear 22 fixedly connected to the second gear shaft 39 is installed on the lower side of the third gear 23, a first gear 21 engaged with the second gear 22 is fixedly installed on the upper side of the first gear shaft 14, universal joints 33 are fixedly installed on the upper and lower sides of the third gear shaft 29, a third auxiliary wheel 25 is fixedly arranged in the third wheel shaft 29, a fourth belt wheel 26 fixedly connected with the third wheel shaft 29 is arranged at the lower side of the third auxiliary wheel 25, a third belt 24 is connected between the third auxiliary wheel 25 and the third belt wheel 23, universal joints 33 are fixedly arranged at the upper side and the lower side of the fourth wheel shaft 30, a fourth auxiliary wheel 28 is fixedly arranged in the fourth wheel shaft 30, a fourth belt 27 is connected between the fourth auxiliary wheel 28 and the fourth belt wheel 26, each universal joint 33 is hinged with a universal rotating shaft 42, and a conveying wheel 43 is fixedly arranged on each universal rotating shaft 42, so that when a long shaft enters the conveying cavity 71, the main motor 11 is started, the motor shaft 12 rotates to drive the first belt wheel 13 to rotate, the first auxiliary wheel 16 and the first gear 21 are driven to rotate by the first belt 15, and the second wheel 22 and the second wheel 21 are driven to rotate in sequence, The third belt wheel 23, the third secondary wheel 25, the fourth belt wheel 26 and the fourth secondary wheel 28 rotate, so that the six universal joints 33 rotate to drive the conveying wheels 43 to rotate, and the long shaft moves rightwards.

In addition, in one embodiment, six fixed top columns 44 which are symmetrical in pairs are fixedly arranged on the front side wall of the conveying cavity 71, a moving rod 46 is connected in each fixed top column 44 in a sliding manner, a fixed spring 45 is connected between the moving rod 46 and the fixed top columns 44, a fixed ring 48 is fixedly arranged between two moving rods 46 which are symmetrical up and down, a rough grinding ring 50 is connected in the fixed ring 48 on the left side in a rotating manner, an adjusting ring 49 is fixedly arranged on the left side of the rough grinding ring 50, a grinding screw 58 is rotatably connected on the outer side of the rough grinding ring 50, a rotating handle 59 is fixedly arranged on the lower side of the grinding screw 58, a grinding screw sleeve 60 is rotatably connected on the grinding screw 58, a rough grinding rod 63 is fixedly arranged on the grinding screw sleeve 60, a rough grinding block 64 is fixedly arranged on the upper side of the rough grinding rod 63, the rough grinding block 64 is a special rough grinding material, and a fine grinding ring, the outer side of the fine grinding ring 65 is rotatably connected with a grinding screw 58, the grinding screw 58 is rotatably connected with a grinding threaded sleeve 60, a fine grinding rod 61 is fixedly arranged on the grinding threaded sleeve 60, a fine grinding block 62 is fixedly arranged on the upper side of the fine grinding rod 61, the fine grinding block 62 is a special fine grinding material, the right fixing ring 48 is rotatably connected with a polishing ring 66, the polishing ring 66 is slidably connected with a polishing rod 54, a polishing spring 53 is connected between the polishing rod 54 and the polishing ring 66, the rear side of the polishing rod 54 is fixedly provided with a polishing block 55, the polishing block 55 is a special polishing material, the coarse grinding ring 50, the fine grinding ring 65 and the right side of the polishing ring 66 are respectively fixedly provided with a belt wheel ring 51, a second belt 34 is connected between each belt wheel ring 51 and the second belt wheel 19, the rotating rod 38 is rotatably connected with a rotating wheel shaft 56, and the rotating wheel shaft 56 is fixedly provided with a rotating belt wheel 52 in contact with the second belt 34, a torsion spring is connected between the rotating collar 37 and the supporting collar 36 to keep the second belt 34 in a tensioned state, so that when the long shaft enters the adjusting ring 49 through the conveying wheel 43, the long shaft pushes the adjusting ring 49, the height is adjusted according to different shaft diameters, the fixed spring 45 is compressed or tensioned, the connecting rod 47 enables the moving rod 46, the rough grinding ring 50, the fine grinding ring 65 and the polishing ring 66 to synchronously adjust the height, the rotating handle 59 is rotated according to the shaft diameter in advance, the grinding screw 60 rotates spirally relative to the grinding screw 58 and adjusts the positions of the rough grinding rod 63 and the rough grinding block 64 to reach a standard rough grinding amount, and simultaneously adjusts the positions of the fine grinding rod 61 and the fine grinding block 62 to reach a standard fine grinding amount, the second belt 34 is kept in a tensioned state through the rotating pulley 52, the motor shaft 12 drives the first bevel gear 17 to rotate, and simultaneously drives the second bevel gear 18 and the three second belt wheels 19 to rotate, the three second belts 34 drive the belt wheel rings 51 to rotate, so as to drive the rough grinding ring 50, the finish grinding ring 65 and the polishing ring 66 to rotate, so that the rough grinding block 64 rotates to roughly grind the long shaft, when the long shaft enters the finish grinding ring 65, the finish grinding block 62 rotates to finely grind the long shaft, when the long shaft enters the polishing ring 66, the large-diameter long shaft pushes the polishing block 55 and the polishing rod 54 to move radially due to the diameter of the shaft, the polishing spring 53 is compressed, for the small-diameter long shaft, the polishing spring 53 pushes the polishing rod 54 and the polishing block 55 to press the long shaft, and the polishing block 55 rotates to polish the long shaft.

In addition, in one embodiment, a supporting column 40 is fixed on the rear side wall of the placing cavity 70, a placing plate 41 is fixed on the supporting column 40, a long shaft can enter the device through the inlet 74, and finally the long shaft can be sent out through the outlet 75, so that the long shaft enters from the inlet 74, is placed on the placing plate 41, is pushed into the grinding cavity 72, and is sent out from the outlet 75 after being processed.

In the initial state, the main motor 11 is not started and the parts are kept stationary.

When the long shaft is required to be ground and polished, the long shaft is sent into the device, when the long shaft enters the conveying cavity 71, the main motor 11 is started, the motor shaft 12 rotates to drive the first belt wheel 13 to rotate, the first secondary wheel 16 and the first gear 21 are driven to rotate by the first belt 15, the second gear 22, the third belt wheel 23, the third secondary wheel 25, the fourth belt wheel 26 and the fourth secondary wheel 28 are sequentially driven to rotate, the six universal joints 33 rotate to drive the conveying wheel 43 to rotate, so that the long shaft moves rightwards, when the long shaft enters the adjusting ring 49 through the conveying wheel 43, the long shaft pushes the adjusting ring 49, the height is adjusted according to different shaft diameters, the fixing spring 45 is compressed or tensioned, the connecting rod 47 synchronously adjusts the height of the moving rod 46, the rough grinding ring 50, the fine grinding ring 65 and the polishing ring 66, the handle 59 is rotated according to the shaft diameters in advance, the grinding threaded sleeve 60 rotates relative to the grinding screw 58 and adjusts the positions of the rough grinding rod 63 and the rough grinding block 64, when the standard rough grinding amount is reached, the positions of the fine grinding rod 61 and the fine grinding block 62 are adjusted simultaneously to reach the standard fine grinding amount, the second belt 34 is kept in a tensioning state through the rotating belt wheel 52, the motor shaft 12 drives the first bevel gear 17 to rotate, the second bevel gear 18 and the three second belt wheels 19 are driven to rotate simultaneously, the belt wheel ring 51 is driven to rotate through the three second belt wheels 34, the rough grinding ring 50, the fine grinding ring 65 and the polishing ring 66 are driven to rotate, the rough grinding block 64 rotates to carry out rough grinding on the long shaft, when the long shaft enters the fine grinding ring 65, the fine grinding block 62 rotates to carry out fine grinding on the long shaft, when the long shaft enters the polishing ring 66, due to the diameter of the shaft, the large-diameter long shaft pushes the polishing block 55 and the polishing rod 54 to move radially, the polishing spring 53 is compressed, for the small-diameter long shaft, the polishing spring 53 pushes the polish rod 54 and the polishing block 55 to press, the long shaft enters from the inlet 74, is placed on the placing plate 41, is pushed into the grinding chamber 72, and is discharged from the outlet 75 after the completion of the machining.

The invention has the beneficial effects that: this device can carry out grinding and polishing to the major axis simultaneously, wherein conveyor can get into major axis automatic transmission entering device, automatic output at last, grinding device can carry out the corase grind and the correct grinding to the major axis, accomplish polishing process simultaneously, save process time greatly, improve machining efficiency, this device can support many places of major axis, the crooked degree of less axle, the multiple defect that produces has reduced the major axis and has processed man-hour, parts such as a plurality of springs in the device and torsional spring can make the device process the major axis of multiple diameter simultaneously, the commonality of device has been increased, this device uses mechanical structure, the reliability and the stability of device have been guaranteed.

The above description is only an embodiment of the invention, but the scope of the invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.