CN213998788U

CN213998788U - Loading and unloading device for grinding excircle of part

Info

Publication number: CN213998788U
Application number: CN202022808069.0U
Authority: CN
Inventors: 不公告发明人
Original assignee: Heyuan Lung Kee Metal Products Co ltd
Current assignee: Heyuan Lung Kee Metal Products Co ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-08-20
Anticipated expiration: 2030-11-27

Abstract

The utility model provides a loading and unloading device for grinding an outer circle of a part, which belongs to the technical field of part processing and comprises a first station, a second station and a third station; the first station is used for sleeving a part on the core rod, the core rod can be positioned, and the smaller end of the core rod is suspended; the second station is used for tightly sleeving the parts on the core rod, can position the core rod and is provided with a first air cylinder for pushing the core rod to enable the parts to be tightly sleeved on the core rod; and a third station for detaching the component from the mandrel, capable of positioning the mandrel, and having a second cylinder for pushing the mandrel to detach the component from the mandrel. The automatic part loading and unloading device aims at solving the technical problem that the traditional method in the prior art cannot be matched with a manipulator to complete automatic part loading and unloading.

Description

Loading and unloading device for grinding excircle of part

Technical Field

The utility model belongs to the technical field of the parts machining, especially, relate to a loading and unloading device for part external grinding.

Background

The cylindrical grinding machine is mainly applied to the precise grinding processing of the cylindrical surface, the conical surface and the end surface of parts such as a bearing, a flange, a transmission shaft, a shaft sleeve, a bushing, a brake disc or a cushion block and the like, has wide application range, and is one of necessary grinding processes with high precision requirements, such as automobiles, aerospace, machinery or dies and the like.

When cylindrical grinding parts such as axle sleeve, village cover, flange, brake disc, cushion, guarantee the axiality because of the disposable clamping of need consideration, common mode has: inserting the part into a core rod with taper, wherein the two ends of the core rod are provided with positioning holes, placing the core rod in two top centers of an external grinding, and clamping the core rod by the top centers of the external grinding. When the excircle is ground, the core rod rotates along with the center of the grinding machine, and the part rotates along with the core rod. After grinding, the tip is loosened, the core rod and the part are removed, and the part is then removed from the core rod. The traditional process is completed manually by staff or by a simple auxiliary device, and has high labor intensity and low efficiency.

With the development of automated processing technology, robots (manipulators) are increasingly used. In order to realize the automatic processing of the excircle grinding of the part, the traditional clamping auxiliary process needs to be improved, and a full-automatic device needs to be adopted for clamping so as to be matched with the development of automatic processing.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a part grinds loading and unloading device for excircle aims at solving among the prior art technical problem that traditional approach can't cooperate the manipulator to accomplish automatic loading and unloading part.

The utility model discloses a realize like this, a loading and unloading device for part external grinding, include:

the first station is used for sleeving the parts on the core rod, positioning the core rod and suspending the smaller end of the core rod;

the second station is used for tightly sleeving the parts on the core rod, can position the core rod and is provided with a first air cylinder used for pushing the core rod to tightly sleeve the parts on the core rod; and

and a third station for detaching the component from the mandrel, capable of positioning the mandrel, and having a second cylinder for pushing the mandrel to detach the component from the mandrel.

Further, the first station includes:

the fixing block is provided with a round hole, the round hole is used for sleeving the larger end of the core rod, a pin shaft is inserted on the core rod and abutted against one side of the round hole to limit the core rod, and

the first main V-shaped block is used for supporting the core rod, and the distance from the first main V-shaped block to the fixing block is adjustable.

Further, the second station includes:

two main V-shaped blocks II are used for supporting the core rod and clamping and limiting parts arranged on the core rod;

the auxiliary V-shaped block I is used for supporting the suspended end of the core rod; and

the first air cylinder is used for pushing the core rod to enable the part to be tightly sleeved on the core rod, and the positions of the main V-shaped block II, the auxiliary V-shaped block I and the first air cylinder in the length direction of the core rod are adjustable.

Further, the third station includes:

two main V-shaped blocks are used for supporting the core rod and clamping and limiting parts arranged on the core rod;

the auxiliary V-shaped block II is used for supporting the suspended end of the core rod;

the second air cylinder is used for pushing the core rod to enable the part to be separated from the core rod, and the positions of the main V-shaped block III, the auxiliary V-shaped block II and the second air cylinder in the length direction of the core rod are adjustable; and

and the baffle is arranged at one end opposite to the second cylinder and used for blocking the core rod from flying out.

Furthermore, the first station, the second station and the third station are all located on the same bottom plate, the first cylinder and the second cylinder are provided with detection units for detecting the core rod, the detection units are electrically connected with a controller, and the controller is used for controlling the first cylinder and the second cylinder to act.

Furthermore, the fixed block is fixedly arranged on the bottom plate, the section of the main V-shaped block is L-shaped, the V-shaped opening is positioned on the vertical section, and the horizontal section is connected with the long slotted hole on the bottom plate through a bolt.

Furthermore, the structure of the second main V-shaped block and the structure of the third main V-shaped block are the same as that of the main V-shaped block and are connected with the long slotted hole in the bottom plate through bolts.

Furthermore, the cross section of the auxiliary V-shaped block I is L-shaped, the V-shaped opening is located in the vertical section, the horizontal section is connected with the long groove hole in the bottom plate through a bolt, the V-shaped opening of the auxiliary V-shaped block I is smaller than the V-shaped opening of the main V-shaped block I, the structure of the auxiliary V-shaped block II is the same as that of the auxiliary V-shaped block I, and the horizontal section is also connected with the long groove hole in the bottom plate through a bolt.

Furthermore, the front ends and the rear ends of the first cylinder and the second cylinder are respectively connected with a connecting block with an L-shaped section, and the connecting blocks are connected with the long slotted holes in the bottom plate through bolts.

Furthermore, the auxiliary V-shaped block I is arranged at a position close to the first air cylinder, and the auxiliary V-shaped block II is arranged at a position far away from the second air cylinder.

The utility model discloses a loading and unloading device for part external grinding, the technological effect for prior art is: through first station, can cooperate the operation of manipulator to fix a position the plug, then snatch the part through the manipulator, with the less end of part suit at the plug, the plug is the tapering setting, through the second station, the plug location that the manipulator will assemble the part is on the second station, then first cylinder passes through the ejector pin, make the part cover tightly on the plug, after the cover is tight, the manipulator snatchs the plug, send to and process on the lathe, after finishing, through the third station, the manipulator snatchs the plug that the part will be processed, and place the location on the third station, then second cylinder ejector pin makes the part deviate from the plug, make the part break away from the plug, whole in-process, the utility model discloses cooperate the operation of manipulator, fix a position the clamping to part and plug, realized automated operation, increased production efficiency greatly.

Drawings

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

Fig. 1 is a schematic structural diagram of a handling device for grinding an outer circle of a part according to an embodiment of the present invention.

Description of reference numerals: 1. the device comprises a core rod, 2 parts of a first cylinder, 3 parts of a second cylinder, 4 parts of a fixed block, 5 parts of a pin shaft, 6 parts of a main V-shaped block I, 7 parts of a main V-shaped block II, 8 parts of a main V-shaped block III, 9 parts of an auxiliary V-shaped block I, 10 parts of an auxiliary V-shaped block II, 11 parts of a baffle plate, 12 parts of a bottom plate, 13 parts of a long groove hole and 14 parts of a connecting block.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated herein, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

Referring to fig. 1, an embodiment of the present invention provides a handling device for grinding an outer circle of a part, including a first station, a second station, and a third station; specifically, the first station is used for sleeving a part on a core rod 1, the core rod 1 can be positioned, and the smaller end of the core rod 1 is suspended; the second station is used for tightly sleeving the parts on the core rod 1, can position the core rod 1 and is provided with a first air cylinder 2 used for pushing the core rod 1 to tightly sleeve the parts on the core rod 1; the third station is for detaching the component from the mandrel bar 1, is capable of positioning the mandrel bar 1, and has a second cylinder 3 for pushing the mandrel bar 1 and detaching the component from the mandrel bar 1.

Including three station in this embodiment, can cooperate the operation of manipulator, with the tight suit of part on plug 1, treat to process after finishing, can also cooperate the manipulator to demolish the part from plug 1, realized the automation mechanized operation of cooperation manipulator.

Specifically, referring to fig. 1, in this embodiment, the operation is implemented by positioning a core rod 1 by a first station in cooperation with the operation of a manipulator, grabbing a part by the manipulator, sleeving the part on a smaller end of the core rod 1, setting the core rod 1 in a taper shape, positioning the core rod 1 with the assembled part on a second station by the manipulator through the second station, pushing the core rod 1 by a first cylinder 2 to tightly sleeve the part on the core rod 1, grabbing the core rod 1 by the manipulator after tightly sleeve, sending the core rod 1 to a machine tool for processing, grabbing the core rod 1 with the processed part by the manipulator through a third station after processing, placing and positioning the core rod 1 on the third station, pushing the core rod 1 by a second cylinder 3 to release the part from the core rod 1, and separating the part from the core rod 1, wherein in the whole process, the utility model is in cooperation with the operation of the manipulator, the parts and the core rod 1 are positioned and clamped, so that automatic operation is realized, and the production efficiency is greatly improved.

The embodiment further provides a preferred embodiment of the first station, please refer to fig. 1, and specifically, the first station includes a fixed block 4 and a main V-shaped block one 6.

The fixing block 4 is provided with a round hole, the round hole is used for sleeving the larger end of the core rod 1, a pin shaft 5 is inserted into the core rod 1, and the pin shaft 5 abuts against one side of the round hole to limit the core rod 1.

And the main V-shaped block I6 is used for supporting the core rod 1, and the distance from the main V-shaped block I to the fixing block 4 is adjustable.

This embodiment specifically provides the structural component of first station, first station is used for the part suit on plug 1, in order to realize this operation, at first need fix a position plug 1, the manipulator grabs plug 1, insert inside the round hole with the great end of plug 1, then the side of round hole is supported to round pin axle 5 butt, lead to the fact spacingly to plug 1, the middle part of plug 1 is supported by main V type piece 6 simultaneously, and the less end of plug 1 is unsettled the setting then, the location of plug 1 has been accomplished like this, then the manipulator grabs the part, wear into the part from the less end cover of plug 1, accomplish the operation of wearing to the part.

The main V-shaped block 6 is provided with a V-shaped opening, can bear the mandril 1, and the width of the V-shaped opening is increased from small to large, so that the V-shaped opening can be used for bearing the mandril 1 with different diameters. The application range is increased.

And the position of the main V-shaped block I6 is adjustable, and the distance from the main V-shaped block I to the fixed block 4 can be set according to the length of the core rod 1, so that the distance is reasonable, the core rod 1 can be effectively supported, and the side turning is prevented.

The core rod positioning device is simple in structure, easy to operate, capable of positioning the core rod 1 in the mode of the pin shaft 5 and the round hole, simple, fast, accurate in positioning and low in machining cost.

Alternatively, the fixed block 4 may be provided with holes of other shapes, such as triangular hollow holes or rectangular holes, and the larger end surface of the core rod 1 is provided with protrusions matched with the triangular holes or the rectangular holes, so that the core rod 1 can be limited after being inserted; moreover, can also set up the cell body of impenetrable and plug 1 cross-section looks adaptation on fixed block 4, the great end butt of plug 1 is inside the cell body, realizes spacing to plug 1, and any improved generation that technical personnel in the field can obtain through this embodiment realizes the means and all is in the utility model discloses a within the scope of protection.

The embodiment provides a preferred implementation mode of the second station, and referring to fig. 1, specifically, the second station includes a main V-shaped block two 7, an auxiliary V-shaped block one 9, and a first cylinder 2.

The two main V-shaped blocks 7 are used for supporting the core rod 1 and clamping and limiting parts arranged on the core rod 1; the auxiliary V-shaped block I9 is used for supporting the suspended end of the core rod 1; the first air cylinder 2 is used for pushing the core rod 1 to enable the parts to be tightly sleeved on the core rod 1, and the positions of the main V-shaped block II 7, the auxiliary V-shaped block I9 and the first air cylinder 2 in the length direction of the core rod 1 are adjustable.

In the embodiment, after a part is sleeved on a core rod 1 through a first station, a manipulator grabs the core rod 1 and then places the core rod 1 on a second station, at the moment, the part is limited between two main V-shaped blocks II 7, the free end of the core rod 1 is supported by an auxiliary V-shaped block I9, then a first cylinder 2 pushes the free end of the core rod 1, so that the core rod 1 is pushed, the part is limited and does not move, and the part is tightly sleeved on the core rod 1.

The structure of the embodiment is simple, the manufacturing cost is low, the parts can be tightly sleeved only by the three blocks and the air cylinder, the technical problem of part fastening and sleeving is well solved, the operation can be completed by matching with a mechanical arm, and the automatic processing development is powerfully matched.

Alternatively, the block may take other shapes, such as a block with a trapezoidal groove for holding the core rod 1, and the cylinder may take other pushing means, such as a hydraulic cylinder, an electric push rod, etc.

The present embodiment further provides a preferred implementation manner of the third station, specifically, referring to fig. 1, the third station includes a main V-shaped block three 8, an auxiliary V-shaped block two 10, a second cylinder 3, and a baffle 11.

Two main V-shaped blocks III 8 are used for supporting the core rod 1 and clamping and limiting parts arranged on the core rod 1; the auxiliary V-shaped block II 10 is used for supporting the suspended end of the core rod 1; the second air cylinder 3 is used for pushing the core rod 1 to enable the part to be separated from the core rod 1, and the positions of the main V-shaped block III 8, the auxiliary V-shaped block II 10 and the second air cylinder 3 in the length direction of the core rod 1 are adjustable; the baffle 11 is arranged at one end opposite to the second cylinder 3 and used for blocking the core rod 1 from flying out.

In the embodiment, after the part is tightly sleeved, the part is taken away by the mechanical hand, after the grinding processing is completed, the mechanical hand grips the core rod 1, and the core rod 1 is placed on the third station to disassemble the part.

Specifically, the part is placed between the two main V-shaped blocks III 8, the part is limited, then the suspended end of the core rod 1 is supported on the auxiliary V-shaped block II 10, the core rod 1 is prevented from sagging to cause deflection, then the second air cylinder 3 pushes the core rod 1, the part is limited, the part is detached from the core rod 1, and the part dismantling work is completed.

The baffle 11 is used for preventing the baffle 11 from flying out due to the fact that the baffle 11 is too violent when the core rod 1 is pushed, and the baffle plays a role in blocking the core rod 1.

Further, the present embodiment provides a preferred embodiment, please refer to fig. 1, where the first station, the second station, and the third station are all located on the same bottom plate 12, the first cylinder 2 and the second cylinder 3 are provided with a detecting unit for detecting the mandrel 1, the detecting unit is electrically connected to a controller, and the controller is used for controlling the first cylinder 2 and the second cylinder 3 to operate.

In this embodiment, three stations are located on the same bottom plate 12, can realize removing simultaneously, transposition simultaneously to set up compactly, make things convenient for the manipulator to operate.

In addition, the embodiment further comprises a detection unit for detecting the mandrel 1, in order to further realize automatic operation, the detection units are arranged at the first air cylinder 2 and the second air cylinder 3, when the mandrel 1 on the second station and the third station is in place, the detection units detect that the mandrel 1 is already on the station, a signal is sent to the controller, and after the controller receives the signal, the controller sends a signal to control the first air cylinder 2 or the second air cylinder 3 to act, so that the pushing operation is completed.

Alternatively, the bottom plate 12 may be configured as a split structure, that is, formed by combining three sub-plates, and the split structure or the split structure may be performed, the split structure or the split structure may be completely determined by the operation range of the manipulator, in order to better adapt to the operation of the manipulator, the three stations are selectively split or combined together, and the three sub-plates may be connected by inserting rods or slots, or may be screwed by screws.

Alternatively, in the above embodiment, the first main V-shaped block 6, the second main V-shaped block 7, and the third main V-shaped block 8 may be configured as a structure formed by combining two assembling blocks, that is, the block in the figure is divided into two blocks along the vertical center line, the distance between the two blocks can be adjusted, when encountering a core rod 1 with a larger diameter, the two assembling blocks can be separated, a gap is provided between the two blocks, the core rod 1 is erected between the two blocks, when the diameter of the core rod 1 is smaller, the two assembling blocks do not need to be separated, the other two assembling blocks are connected together through a screw and a screw hole which are matched, and the distance between the two assembling blocks can be adjusted by rotating the screw.

Further, in order to prevent the mandrel 1 from popping up and injuring a person when the first cylinder 2 or the second cylinder 3 pushes the mandrel 1, a protection device, such as an inverted U-shaped block, is arranged between two top ends of each main V-shaped block, the U-shaped block is inverted and two ends of the U-shaped block are respectively connected with two ends of the main V-shaped block, the mandrel 1 is arranged in a frame opening formed by combination, the connection form of the U-shaped block and the main V-shaped block can be clamping connection or screw connection, the clamping connection is realized through the form of a protrusion and a clamping groove, such as a dovetail-shaped protrusion is arranged on the U-shaped block, a dovetail-shaped matched clamping groove is arranged on the main V-shaped block, the U-shaped block and the clamping groove are sleeved together, the U-shaped block is arranged for connection, in order to avoid the mandrel 1 from popping up and injuring a person, the U-shaped block can be operated manually or operated by a mechanical hand, the mechanical hand catches the U-shaped block after the mandrel 1 is placed, the clamping is on main V type piece, and after the cylinder operation was accomplished, the U type piece was got rid of again to the manipulator, then snatchs plug 1.

Further, as a preferred embodiment of this embodiment, please refer to fig. 1, the fixing block 4 is fixedly disposed on the bottom plate 12, the cross section of the main V-shaped block 6 is L-shaped, and the V-shaped opening is located on the vertical section, wherein the horizontal section is connected with the long slot hole 13 on the bottom plate 12 through a bolt.

The fixing block 4 is fixedly arranged, when the first main V-shaped block 6 needs to move, the first main V-shaped block can be moved along the direction of the long slotted hole 13, and after the first main V-shaped block is in place, the first main V-shaped block 6 is locked at any position of the long slotted hole 13 through the matching of the bolt and the nut.

The embodiment realizes that the mandrel with different lengths can be applied to the mandrel 1, and the adaptability is adjusted according to the length of the mandrel 1.

Further, referring to fig. 1, in order to realize that each block can move so as to make the mandrels 1 with different lengths suitable for each station, the main V-shaped block two 7 and the main V-shaped block three 8 have the same structure as the main V-shaped block one 6 and are connected with the long slot hole 13 on the bottom plate 12 through bolts.

The effect of this embodiment lies in, has realized that each station all can adapt to the plug 1 of different length, makes the plug 1 of different length all can use on second station and third station, greatly increased application range.

And adopt slotted hole 13 and bolt matched with form, carry out the regulation of position, adjust more simply swiftly to it is more firm after the fixing, and the processing cost is low, and is effectual.

When each main V-shaped block adopts the above-mentioned splicing block type embodiment, a transverse slot hole perpendicular to the long slot hole 13 may be formed in the bottom plate 12, so that the splicing block moves along the transverse slot hole direction, and a fixing form of a bolt is also provided, so that a plurality of transverse slot holes may be formed in cooperation with the adjustment of the distance.

Further, as a preferred embodiment provided in this embodiment, please refer to fig. 1, a cross section of the auxiliary V-shaped block i 9 is L-shaped, and a V-shaped opening is located on the vertical section, wherein the horizontal section is connected with a long slot hole 13 on the bottom plate 12 through a bolt, the V-shaped opening of the auxiliary V-shaped block i 9 is smaller than the V-shaped opening of the main V-shaped block i 6, a structure of the auxiliary V-shaped block ii 10 is the same as that of the auxiliary V-shaped block i 9, and the horizontal section is also connected with the long slot hole 13 on the bottom plate 12 through a bolt.

In the embodiment, the structural shapes of the auxiliary V-shaped block I9 and the auxiliary V-shaped block II 10 are provided, the L shape can ensure that the auxiliary V-shaped blocks keep better stability, and the horizontal section is used for being connected with the long slotted hole 13, and the position can be adjusted by the mode of bolt connection.

Further, as a preferred embodiment provided by the present embodiment, the front end and the rear end of the first cylinder 2 and the second cylinder 3 are connected to a connecting block 14 with an L-shaped cross section, and the connecting block 14 is connected to the long slot hole 13 on the bottom plate 12 by a bolt.

In the present embodiment, in order to connect the cylinder and the bottom plate 12, a bolt is also matched with the long slot hole 13, and the connection is realized by means of the connecting block 14, and a threaded hole is arranged on the connecting block 14 for penetrating the bolt.

Further, the top of pushing away that requires the cylinder in this embodiment will be aligned with plug 1, just can carry out better ejection to plug 1, this embodiment can also set up the mechanism that can promote connecting block 14 in the direction of height on connecting block 14, preferably, this mechanism can be, weld the welding block that has the screw hole on connecting block 14, a welding block is all welded to both sides on every connecting block 14 around, then penetrate the screw rod toward the screwed hole of welding block, if plug 1's diameter is great, when needing the cylinder to do the promotion, then penetrate the screw rod, make the screw rod contradict bottom plate 12 surface, then twist the screw rod, realize that the welding block also is ascending or descending of connecting block 14.

Further, the auxiliary V-shaped block 9 is disposed at a position close to the first cylinder 2, and the auxiliary V-shaped block 10 is disposed at a position far from the second cylinder 3.

To sum up, the utility model discloses a part grinds excircle handling device has tightly and dismantles the three station on the plug with the part cover for prior art's technical effect, and each station all has positioner, has realized the location of plug, has cooperated the operation of manipulator well, has realized automated processing.

The foregoing is only a preferred embodiment of the present invention, and the technical principles of the present invention have been specifically described, and the description is only for the purpose of explaining the principles of the present invention, and should not be construed as limiting the scope of the present invention in any way. Any modifications, equivalents and improvements made within the spirit and principles of the invention and other embodiments of the invention without the creative effort of those skilled in the art are intended to be included within the protection scope of the invention.

Claims

1. Part grinds loading and unloading device for excircle, its characterized in that includes:

2. The handling device for grinding an outer circle of a part according to claim 1, wherein said first station comprises:

3. The handling device for grinding an outer circle of a part according to claim 2, wherein the second station comprises:

4. The handling device for grinding an outer circle of a part according to claim 3, wherein the third station comprises:

5. The handling device for grinding the outer circle of the part according to claim 4, wherein the first station, the second station and the third station are all located on the same bottom plate, the first cylinder and the second cylinder are provided with a detection unit for detecting the core rod, the detection unit is electrically connected with a controller, and the controller is used for controlling the first cylinder and the second cylinder to act.

6. The loading and unloading device for cylindrical grinding of parts as claimed in claim 5, wherein the fixed block is fixedly arranged on the bottom plate, one section of the main V-shaped block is L-shaped, the V-shaped opening is positioned on the vertical section, and the horizontal section is connected with the long slot hole on the bottom plate through a bolt.

7. The handling device for cylindrical grinding of parts according to claim 6, wherein the second and third main V-shaped blocks have the same structure as the main V-shaped block and are connected to the slotted hole of the bottom plate by bolts.

8. The loading and unloading device for cylindrical grinding of parts as claimed in claim 5, wherein the section of the auxiliary V-shaped block I is L-shaped, and the V-shaped opening is located on the vertical section, wherein the horizontal section is connected with the long slot hole on the bottom plate through a bolt, the V-shaped opening of the auxiliary V-shaped block I is smaller than the V-shaped opening of the main V-shaped block I, the structure of the auxiliary V-shaped block II is the same as that of the auxiliary V-shaped block I, and the horizontal section is also connected with the long slot hole on the bottom plate through a bolt.

9. The loading and unloading device for grinding the outer circle of the part as claimed in claim 5, wherein the front end and the rear end of the first cylinder and the second cylinder are connected with connecting blocks with L-shaped cross sections, and the connecting blocks are connected with the long slotted holes on the bottom plate through bolts.

10. The handling device for cylindrical grinding of parts according to claim 4, wherein said first auxiliary V-shaped block is disposed at a position close to said first cylinder and said second auxiliary V-shaped block is disposed at a position away from said second cylinder.