CN215968230U

CN215968230U - Grinding wheel quick-change locking mechanism

Info

Publication number: CN215968230U
Application number: CN202122238564.7U
Authority: CN
Inventors: 张小季; 张明
Original assignee: JIANGSU BEISITE NC MACHINERY CO Ltd
Current assignee: JIANGSU BEISITE NC MACHINERY CO Ltd
Priority date: 2021-09-16
Filing date: 2021-09-16
Publication date: 2022-03-08
Anticipated expiration: 2031-09-16

Abstract

The utility model discloses a quick-change locking mechanism for a grinding wheel, which comprises a flange seat, an inner grinding wheel clamping disc and an outer grinding wheel clamping disc, wherein the inner grinding wheel clamping disc and the outer grinding wheel clamping disc are used for clamping the grinding wheel, a plurality of clamping connecting rods are movably arranged on the disc body part of the flange seat, the upper ends of the clamping connecting rods are hinged with an eccentric clamping handle, the eccentric clamping handle is positioned above the disc body part of the flange seat, the lower ends of the clamping connecting rods are connected with the connecting clamping disc, a plurality of connecting tenon sheets are arranged on the peripheral surface of the connecting clamping disc, a plurality of connecting seats corresponding to the connecting tenon sheets are arranged on the upper side surface of the outer grinding wheel clamping disc, connecting tenon grooves corresponding to the connecting tenon sheets are arranged on the connecting seats, the connecting tenon sheets can be inserted into the connecting tenon grooves through rotation, and the inner hole of the outer grinding wheel clamping disc can be sleeved and connected with the periphery of a centering shoulder at the lower end of the flange seat. The grinding wheel quick-change locking mechanism can meet the requirement of the mounting quality of a grinding wheel, reduce the time required by the replacement of the grinding wheel and improve the working efficiency of a grinding machine.

Description

Grinding wheel quick-change locking mechanism

Technical Field

The utility model relates to a grinding machine tool, in particular to an improvement of a grinding wheel mounting structure for a grinding machine.

Background

The grinding wheel is a grinding tool for grinding a workpiece by a grinding machine, the grinding wheel is arranged on a grinding wheel spindle or directly arranged on a grinding head motor shaft, different grinding wheels need to be replaced according to different materials and hardness of the ground workpiece, and the grinding wheel needs to be replaced after being worn to a certain degree, so that the grinding wheel needs to be assembled and disassembled frequently, the grinding wheel belongs to a fragile article, the grinding wheel needs to be carefully and lightly placed during carrying and installation to prevent shattering and damage, a special nut wrench needs to be used for fastening the grinding wheel in the installation process of the grinding wheel, the grinding wheel needs to be symmetrically screwed up gradually on two opposite sides of the spindle in sequence, and the tightness of a nut is proper, so that the installation process of the grinding wheel needs to consume a long time, and particularly when various small-batch work is ground, the replacement of the grinding wheel has great influence on the working efficiency of the grinding machine.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a grinding wheel quick-change locking mechanism which can meet the requirement of grinding wheel installation quality, reduce the time required by grinding wheel replacement and improve the working efficiency of a grinding machine.

In order to solve the technical problem, the utility model provides a quick-change locking mechanism for a grinding wheel, which comprises a flange seat, an inner grinding wheel clamping disc and an outer grinding wheel clamping disc, wherein the inner grinding wheel clamping disc and the outer grinding wheel clamping disc are used for clamping the grinding wheel, a plurality of clamping connecting rods are movably arranged on a disc body part of the flange seat, the clamping connecting rods are uniformly distributed along the circumferential direction of the disc body part, the upper ends of the clamping connecting rods are hinged with an eccentric clamping handle, the eccentric clamping handle is positioned above the disc body part of the flange seat, the lower ends of the clamping connecting rods are connected with the connecting clamping disc, a plurality of connecting tenon sheets are arranged on the outer circumferential surface of the connecting clamping disc, the connecting tenon sheets are uniformly distributed along the circumferential direction, a plurality of connecting seats are arranged on the upper side surface of the outer grinding wheel clamping disc, the connecting seats are uniformly distributed along the circumferential direction, the number of the connecting seats is the same as that of the connecting tenon sheets, connecting tenon grooves corresponding to the connecting tenon sheets are arranged on the connecting seats, and can be inserted into the connecting tenon grooves through rotation, the inner hole of the grinding wheel outer chuck can be connected with the periphery of the centering shoulder at the lower end of the flange seat in an inserting manner.

In the structure, because a plurality of connecting tenon sheets are arranged on the outer peripheral surface of the connecting chuck plate, the connecting tenon sheets are uniformly distributed along the circumferential direction, a plurality of connecting seats are arranged on the upper side surface of the grinding wheel outer chuck plate, the connecting seats are uniformly distributed along the circumferential direction, the number of the connecting seats is the same as that of the connecting tenon sheets, connecting mortises corresponding to the connecting tenon sheets are arranged on the connecting seats, the connecting tenon sheets can be inserted into the connecting mortises in a rotating manner, after the grinding wheel inner chuck plate and the grinding wheel outer chuck plate are clamped tightly through the connecting bolts and fixedly connected with the grinding wheel into a whole, the grinding wheel outer chuck plate can be connected with the connecting chuck plate through the connecting mortises and the connecting tenon sheets on the connecting chuck plate, the connection between the grinding wheel outer chuck plate and the connecting chuck plate can be realized only by rotating and inserting the connecting tenon sheets between the grinding wheel outer chuck plate and the connecting mortise plate, the connection process is rapid and convenient, and vice versa, and the dismounting process is also convenient and rapid.

And because the disk body part of the flange seat is movably provided with a plurality of clamping connecting rods which are uniformly distributed along the circumferential direction of the disk body part, the upper ends of the clamping connecting rods are hinged with an eccentric clamping handle, the eccentric clamping handle is positioned above the disk body part of the flange seat, the lower ends of the clamping connecting rods are connected with a connecting chuck, the inner hole of an outer grinding wheel chuck can be sleeved and connected with the periphery of a centering shoulder at the lower end of the flange seat, the eccentric clamping handle is pulled to drive the clamping connecting rods to move up and down, so that the connecting chuck moves up and down relative to the disk body part of the flange seat, when the connecting chuck moves up relative to the flange seat to enable the connecting chuck to be close to the disk body part of the flange seat, the outer grinding wheel chuck connected on the connecting chuck through a connecting tenon sheet on the connecting chuck is close to the disk body part of the flange seat, and further enables the outer connecting seat outer side surface on the outer grinding wheel chuck to be tightly and fixedly connected with the disk body part, the wedging action between the eccentric clamping handle and the disc body part ensures that the connecting seat and the flange seat are kept in a fixed connection state, at the moment, the inner hole of the outer chuck of the grinding wheel is sleeved and connected with the periphery of the centering shoulder at the lower end of the flange seat to ensure that the outer chuck of the grinding wheel is coaxial with the flange seat, so that the grinding wheel is fixedly connected with the flange seat, the installation and the connection between the grinding wheel and the flange seat are realized, the whole installation and the connection process only needs to rotate the grinding wheel to ensure that the outer chuck of the grinding wheel is connected with the connecting chuck and pull the eccentric clamping handle to ensure that the outer chuck of the grinding wheel is fixed with the flange seat, the time needed by the replacement of the grinding wheel is greatly reduced, the working efficiency of the grinding machine is improved, the fine installation process that the outer chuck of the grinding wheel needs to be clamped and fixedly connected with the grinding wheel by using a special nut wrench through the connecting bolt and the inner chuck of the grinding wheel is finished before the grinding wheel needs to be replaced, and sufficient time can be provided for ensuring the installation precision and avoiding the shattering and damage possibly occurring in the installation process, thereby the installation quality requirement of the grinding wheel can be ensured.

In a preferred embodiment of the present invention, the eccentric clamping handle includes a handle portion and a clamping disk portion having a disk shape, the upper end of the clamping connecting rod and a hinge axis of the eccentric clamping handle are located on the clamping disk portion, and the hinge axis is offset from an axis of the clamping disk portion. By adopting the embodiment, the clamping disc part can ensure the eccentric clamping action on the clamping connecting rod, and the handle part ensures that the clamping disc part can rotate to realize the eccentric clamping function.

In another preferred embodiment of the present invention, the number of the clamping connection rods is two to six. By adopting the embodiment, two to six clamping connecting rods can ensure that the connecting chucks corresponding to grinding wheels with different diameters can reliably realize clamping connection.

In a further preferred embodiment of the utility model, a nut is screwed onto the lower end of the clamping bar, said nut being inserted into the lower end face of the connecting chuck. With this embodiment, it is possible to facilitate the connection between the lower end of the clamping connecting rod and the connecting chuck.

In a further preferred embodiment of the present invention, the lower end of the nut has a hexagonal shape, and a groove corresponding to the shape of the nut is formed on the lower end surface of the coupling chuck. By adopting the embodiment, the lower end face of the connecting chuck is provided with the groove corresponding to the appearance of the nut, so that the hexagonal nut can be circumferentially limited, and the clamping connecting rod and the connecting chuck are conveniently connected.

In another further preferred embodiment of the present invention, the number of the connecting tenon pieces is two to six. By adopting the embodiment, the two to six connecting tenon plates can meet the stable connection requirement between the connecting chuck plates with different diameters and the grinding wheel outer chuck plates.

In a further preferred embodiment of the present invention, a limiting portion is provided at one end of the connecting tenon piece, an outer diameter of the limiting portion is larger than an outer diameter of the connecting tenon piece, and a thickness of the limiting portion is larger than a thickness of the connecting tenon piece. By adopting the embodiment, the rotary card between the connecting chuck plate and the grinding wheel outer chuck plate can be conveniently inserted and connected.

Drawings

The grinding wheel quick-change locking mechanism of the utility model is further described in detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic structural diagram of one embodiment of a quick-change grinding wheel locking mechanism according to the utility model;

FIG. 2 is a schematic diagram of the outer grinding wheel chuck of the arrangement of FIG. 1;

FIG. 3 is a cross-sectional view taken at location A-A of the structure shown in FIG. 2;

FIG. 4 is a schematic view of the structure of the attachment chuck of the structure of FIG. 1;

FIG. 5 is a cross-sectional view taken at B-B of the structure shown in FIG. 4;

fig. 6 is a schematic view of the structure of the eccentric clamping handle of the structure of fig. 1.

In the figure: 1-flange seat, 2-eccentric clamping handle, 3-clamping connecting rod, 4-disk body, 5-connecting chuck, 6-nut, 7-grinding wheel outer chuck, 8-centering shoulder, 9-grinding wheel inner chuck, 10-grinding wheel, 11-connecting seat, 12-connecting mortise, 13-connecting convex tenon sheet, 14-limiting part, 15-clamping disk part and 16-handle part.

Detailed Description

In the grinding wheel quick-change locking mechanism shown in fig. 1, a flange seat 1 is a grinding wheel mounting connector mounted on a grinding head spindle or a grinding head motor shaft of a grinding machine, an inner hole of the flange seat is in centering fit with the grinding head spindle or the grinding head motor shaft, and the flange seat 1 comprises a disk-shaped disk body 4 and a centering shoulder 8 which is positioned below the disk body 4 and is concentric with the inner hole.

The grinding wheel inner chuck 9 and the grinding wheel outer chuck 7 for clamping the grinding wheel 10 are fixedly connected into a whole in a centering axial clamping mode through connecting bolts, a plurality of clamping connecting rods 3 are movably arranged on a disk body part 4 of a flange seat 1 up and down along the axial direction, each clamping connecting rod 3 is uniformly distributed along the circumferential direction of the disk body part 4, the number of the clamping connecting rods 3 is two to six, three are shown in the figure, the upper ends of the clamping connecting rods 3 are hinged with an eccentric clamping handle 2, the eccentric clamping handle 2 is positioned above the disk body part 4 of the flange seat 1, the lower ends of the clamping connecting rods 3 are connected with a connecting chuck 5, as a preferred embodiment, the eccentric clamping handle 2 comprises a handle part 16 and a disk-shaped clamping disk part 15 as shown in figure 6, the hinged axis of the upper ends of the clamping connecting rods 3 and the eccentric clamping handle 2 is positioned on the clamping disk part 15, and the hinged axis deviates from the axis of the clamping disk part 15, the distance between the hinge axis and the axis of the clamping disc part 15 determines the up-down stroke of the clamping connecting rod 3; the lower end of the clamping connecting rod 3 is screwed with a nut 6, the nut 6 is embedded in the lower end face of the connecting chuck 5, the lower end of the nut 6 is hexagonal, and a nut embedding groove corresponding to the shape of the nut 6 is arranged on the lower end face of the connecting chuck 5.

Referring to fig. 4 and 5, a plurality of connecting tenon plates 13 are arranged on the outer circumferential surface of the connecting chuck 5, the number of the connecting tenon plates 13 is two to six, three connecting tenon plates 13 are shown in the figure, each connecting tenon plate 13 is uniformly distributed along the circumferential direction, a limiting part 14 is arranged at one end of each connecting tenon plate 13, the outer diameter of each limiting part 14 is larger than that of each connecting tenon plate 13, and the thickness of each limiting part 14 is larger than that of each connecting tenon plate 13; referring to fig. 2 and 3, a plurality of connecting seats 11 are arranged on the upper side surface of the grinding wheel outer chuck 7, the connecting seats 11 are uniformly distributed along the circumferential direction, the number of the connecting seats 11 is the same as that of the connecting tenon pieces 13, the connecting seat 11 is provided with a connecting tenon groove 12 corresponding to the connecting tenon pieces 13, the connecting tenon pieces 13 can be inserted into the connecting tenon groove 12 through rotation, and an inner hole of the grinding wheel outer chuck 7 can be sleeved and connected with the periphery of the centering shoulder 8 at the lower end of the flange seat 1 so as to ensure that the grinding wheel 10 is coaxial with the flange seat 1.

When the grinding wheel 10 is replaced and installed on the grinding machine, only the grinding wheel 10 needs to be rotated to enable the grinding wheel outer chuck 7 and the connecting chuck 5 to be connected with the corresponding connecting mortise 12 through the connecting tenon sheet 13 and pull the eccentric clamping handle 2 to enable the grinding wheel outer chuck 7 and the flange seat 1 to be fixed, and the reverse operation can be carried out during disassembly, so that the time for replacing the grinding wheel 10 is greatly shortened, and the working efficiency of the grinding machine is improved.

The above only illustrates some preferred embodiments of the present invention, but the present invention is not limited thereto and many modifications and changes can be made. Modifications and variations are possible in light of the above teachings or may be acquired from practice of the utility model and are to be considered within the scope of the following claims.

Claims

1. The utility model provides a emery wheel quick change locking mechanical system, includes flange seat (1) for the interior (9) of emery wheel of centre gripping emery wheel (10) and the outer (7) of emery wheel (7), its characterized in that: a plurality of clamping connecting rods (3) are movably arranged on a disc body part (4) of the flange seat (1), the clamping connecting rods (3) are uniformly distributed along the circumferential direction of the disc body part (4), the upper ends of the clamping connecting rods (3) are hinged with an eccentric clamping handle (2), the eccentric clamping handle (2) is positioned above the disc body part (4) of the flange seat (1), the lower ends of the clamping connecting rods (3) are connected with a connecting chuck (5), a plurality of connecting tenon sheets (13) are arranged on the outer circumferential surface of the connecting chuck (5), the connecting tenon sheets (13) are uniformly distributed along the circumferential direction, a plurality of connecting seats (11) are arranged on the upper side surface of the grinding wheel outer chuck (7), the connecting seats (11) are uniformly distributed along the circumferential direction, the number of the connecting seats (11) is the same as that of the connecting tenon sheets (13), connecting tenon grooves (12) corresponding to the connecting tenon sheets (13) are arranged on the connecting seats (11), the connecting tenon sheet (13) can be inserted into the connecting tenon groove (12) through rotation, and the inner hole of the grinding wheel outer chuck (7) can be connected with the periphery of the centering shoulder (8) at the lower end of the flange seat (1) in an inserting manner.

2. The grinding wheel quick-change locking mechanism according to claim 1, characterized in that: the eccentric clamping handle (2) comprises a handle part (16) and a disc-shaped clamping disk part (15), the upper end of the clamping connecting rod (3) and the hinged axis of the eccentric clamping handle (2) are located on the clamping disk part (15), and the hinged axis deviates from the axis of the clamping disk part (15).

3. The grinding wheel quick-change locking mechanism according to claim 1, characterized in that: the number of the clamping connecting rods (3) is two to six.

4. The grinding wheel quick-change locking mechanism according to claim 1 or 3, characterized in that: the lower end of the clamping connecting rod (3) is screwed with a nut (6), and the nut (6) is embedded in the lower end face of the connecting chuck (5).

5. The grinding wheel quick-change locking mechanism according to claim 4, characterized in that: the lower end of the nut (6) is hexagonal, and a groove corresponding to the shape of the nut (6) is arranged on the lower end surface of the connecting chuck (5).

6. The grinding wheel quick-change locking mechanism according to claim 1, characterized in that: the number of the connecting tenon sheets (13) is two to six.

7. The grinding wheel quick-change locking mechanism according to claim 1, characterized in that: one end of the connecting tenon sheet (13) is provided with a limiting part (14), the outer diameter of the limiting part (14) is larger than that of the connecting tenon sheet (13), and the thickness of the limiting part (14) is larger than that of the connecting tenon sheet (13).