CN215700826U

CN215700826U - Clamping and rotating device and grinding equipment

Info

Publication number: CN215700826U
Application number: CN202121975085.7U
Authority: CN
Inventors: 付永林
Original assignee: Jiangmen Shunqianen Mechanical Equipment Co ltd
Current assignee: Zhongshan Qishan Machinery Equipment Co ltd
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-02-01
Anticipated expiration: 2031-08-20

Abstract

The utility model discloses a clamping and rotating device and grinding equipment, wherein the clamping and rotating device comprises: the shaft sleeve is rotatably arranged on the workbench; the pull rod is movably arranged in the shaft sleeve in a penetrating mode, the upper portion of the pull rod is provided with a driving head, and the periphery of the driving head is provided with a driving inclined plane; the plurality of expansion blocks can move along the radial direction of the shaft sleeve; the first elastic piece is connected with the expansion block and drives the expansion block to abut against the driving inclined plane; the lifting driving component drives the pull rod to move up and down; the rotary driving mechanism is used for driving the shaft sleeve to rotate; the clamping and rotating device can rapidly and stably clamp the annular workpiece, improves the polishing efficiency and ensures the polishing quality. The grinding equipment comprises the clamping and rotating device, a side surface grinding device and an end surface grinding device, wherein the side surface grinding device is positioned on one side of the clamping and rotating device; above grinding device can enough be fast and stably centre gripping annular work piece, can realize the function that the side was polished and the terminal surface was polished simultaneously again, and the efficiency of polishing is greatly improved.

Description

Clamping and rotating device and grinding equipment

Technical Field

The utility model relates to a clamping and rotating device and grinding equipment.

Background

In daily production, the surface of a workpiece needs to be polished to remove burrs or unevenness on the surface of the workpiece and reduce the surface roughness. In order to achieve high polishing efficiency, a workpiece is generally fixed by using a tool clamp, polishing consumables (such as an abrasive belt) are abutted against the side face of the workpiece, and then the tool clamp is driven to rotate by using a rotating mechanism, so that rapid polishing is realized.

However, when the workpiece to be polished is an annular workpiece, the conventional tool clamp cannot clamp the annular part stably, so that the annular part is easy to displace relative to the tool clamp in the polishing process, polishing quality is affected, the clamping efficiency of the conventional tool clamp to the annular part is extremely low, and manual adjustment is needed.

In addition, the general polishing equipment cannot rapidly and stably clamp the annular workpiece, and cannot polish the side surface and the upper end surface of the annular workpiece, so that the polishing efficiency is low.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a clamping and rotating device capable of rapidly and stably clamping an annular workpiece; the second purpose of the utility model is to provide a grinding device using the clamping and rotating device.

According to an embodiment of a first aspect of the present invention, a clamp rotation apparatus includes: the shaft sleeve is used for being rotatably arranged on the workbench; the pull rod is movably arranged on the shaft sleeve in a penetrating mode, a driving head extending out of the shaft sleeve is arranged at the upper portion of the pull rod, and a driving inclined plane is arranged on the periphery of the driving head; the plurality of expansion blocks are arranged on the shaft sleeve and can move along the radial direction of the shaft sleeve; the first elastic piece is connected with the expansion block and used for driving the expansion block to abut against the driving inclined plane; the lifting driving assembly is used for driving the pull rod to ascend relative to the shaft sleeve so as to enable the expansion block to move radially inwards, or driving the pull rod to descend relative to the shaft sleeve so as to enable the expansion block to move radially outwards; and the rotary driving mechanism is connected with the shaft sleeve and is used for driving the shaft sleeve to rotate.

The clamping and rotating device provided by the embodiment of the utility model at least has the following beneficial effects:

the centre gripping rotary device of structure is before the annular workpiece of clamping earlier, utilize lift drive assembly to order about the pull rod and rise earlier, bloated tight piece is radial inward movement under the effect of first elastic component, then overlap the outside at bloated tight piece with annular workpiece, order about the pull rod decline by lift drive assembly so that bloated tight piece radial outward movement and expand tightly with annular workpiece, then order about the axle sleeve by rotary driving mechanism and rotate and drive annular workpiece and rotate, this centre gripping rotary device can be fast and stably centre gripping annular workpiece, the efficiency of polishing is improved, the quality of polishing is ensured.

In some embodiments of the present invention, the driving inclined surface is a circular table top with a large top and a small bottom, a plurality of the expansion blocks are distributed around the axial circumference of the pull rod, and the expansion blocks have matching inclined surfaces capable of matching with the circular table top.

In some embodiments of the present invention, the lifting driving assembly includes a second elastic member disposed between the lower end of the pull rod and the bushing to drive the pull rod to move downward, and a lifter capable of lifting or separating the pull rod.

In some embodiments of the present invention, the rotary driving mechanism includes a motor, a driving wheel provided at an output shaft of the motor, a driven wheel installed at an outer portion of the shaft sleeve, and a transmission belt connected between the driving wheel and the driven wheel.

In some embodiments of the utility model, the sleeve is further externally sleeved with a bearing assembly for fixing on the worktable.

In some embodiments of the present invention, a flange is provided at an upper end of the shaft sleeve, a tray is mounted on the flange, the expansion blocks are slidably disposed on the tray, and the first elastic member is an elastic ring bundled outside all the expansion blocks.

In some embodiments of the utility model, the expansion block is provided with a positioning groove for accommodating the elastic ring.

According to a second aspect embodiment of the utility model, the grinding equipment comprises a workbench, wherein the workbench is provided with the clamping and rotating device in any one of the technical schemes, and the workbench is provided with a side surface grinding device positioned on one side of the clamping and rotating device and an end surface grinding device positioned above the clamping and rotating device. The grinding equipment with the structure can clamp the annular workpiece quickly and stably, can realize the functions of side grinding and end face grinding simultaneously, and improves grinding efficiency to a great extent.

In some embodiments of the utility model, the side surface grinding device comprises a first transmission wheel set which is rotatably arranged on the workbench, a first abrasive belt is rotatably arranged on the first transmission wheel set and can abut against the side surface of the annular workpiece, and the first transmission wheel set is connected with a reciprocating lifting mechanism which drives the first transmission wheel set to move up and down.

In some embodiments of the present invention, the end surface polishing device includes a second driving wheel set located above the clamping and rotating device, a second abrasive belt capable of abutting against the upper end surface of the annular workpiece is rotatably disposed on the second driving wheel set, and the second driving wheel set is connected to a linear lifting mechanism.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural diagram of an embodiment of a clamping and rotating device of the present invention;

FIG. 2 is an internal cross-sectional view of the clamping and rotation device of the embodiment of FIG. 1 in an expanded state;

fig. 3 is a schematic structural diagram of a polishing apparatus according to the present invention.

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 or similar 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 accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the positional or orientational descriptions referred to, for example, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., are based on the positional or orientational relationships shown in the drawings and are for convenience of description and simplicity of description only, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 and 2, a clamping and rotating device of the present invention includes: a bushing 100 for rotatably disposed on the table 10; the pull rod 200 is movably arranged on the shaft sleeve 100 in a penetrating way, the upper part of the pull rod 200 is provided with a driving head part 210 extending out of the shaft sleeve 100, and the periphery of the driving head part 210 is provided with a driving inclined plane 211; a plurality of expansion blocks 300 disposed on the sleeve 100 and movable in a radial direction of the sleeve 100; the first elastic piece 400 is connected with the expansion block 300 and used for driving the expansion block 300 to abut against the driving inclined surface 211; a lifting driving assembly 500 for driving the pull rod 200 to ascend relative to the sleeve 100 to move the expansion block 300 radially inward, or driving the pull rod 200 to descend relative to the sleeve 100 to move the expansion block 300 radially outward; and the rotary driving mechanism 600 is connected with the shaft sleeve 100 and is used for driving the shaft sleeve 100 to rotate.

The centre gripping rotary device of above structure is before the clamping annular work piece, utilize lift drive assembly 500 to order about pull rod 200 earlier and rise, bloated tight piece 300 radially inwards moves under the effect of first elastic component 400, then overlap the outside at bloated tight piece 300 with annular work piece cover, order about pull rod 200 by lift drive assembly 500 and descend so that bloated tight piece 300 radially outwards moves and bloated tightly with annular work piece, then order about axle sleeve 100 by rotary driving mechanism 600 and rotate and drive annular work piece and rotate, this centre gripping rotary device can be fast and stably centre gripping annular work piece, and the efficiency of polishing is improved, the guarantee quality of polishing.

Referring to fig. 1, in some embodiments of the present invention, the driving bevel 211 is a circular table with a large top and a small bottom, a plurality of the expansion blocks 300 are distributed around the axial circumference of the pull rod 200, and the expansion blocks 300 have a matching bevel 310 capable of matching with the circular table. When the pull rod 200 ascends, the circular table surface is separated from the matching inclined plane 310, the plurality of expansion blocks 300 are folded under the action of the first elastic piece 400, the annular workpiece can be placed outside all the expansion blocks 300, when the pull rod 200 descends, the lower end of the circular table surface is abutted against the matching inclined plane 310, and the plurality of expansion blocks 300 gradually expand outwards along with the descending of the pull rod 200, so that the annular workpiece is expanded. It will be appreciated that the taper of the lands and mating ramps 310 are equal to each other, facilitating abutting mating of the two.

Referring to fig. 1 and 2, in some embodiments of the present invention, the lifting driving assembly 500 includes a second elastic member 510 and a lifter 520, the second elastic member 510 is disposed between the lower end of the pull rod 200 and the bushing 100 to drive the pull rod 200 to move downward, and the lifter 520 can lift the pull rod 200 or separate from the pull rod 200. The jacking device 520 is used for driving the pull rod 200 to ascend, then the annular workpiece is sleeved outside all the expansion blocks 300, after the jacking device 520 moves away from the pull rod 200 in a reset mode, the pull rod 200 resets under the action of the second elastic piece 510, the driving inclined plane 211 drives the expansion blocks 300 to expand the annular workpiece, and when the rotary driving mechanism 600 drives the shaft sleeve 100, the pull rod 200, the expansion blocks 300, the annular workpiece, the first elastic piece 400 and the second elastic piece 510 to rotate together, the jacking device 520 does not need to rotate along with the rotation, so that the structure of the lifting driving assembly 500 is simplified. In some embodiments, the lift 520 includes a cylinder, and the cylinder extends or retracts vertically.

Referring to fig. 2, in some embodiments of the present invention, the rotary driving mechanism 600 includes a motor 610, a driving pulley 620 provided at an output shaft of the motor 610, a driven pulley 630 installed at an outer portion of the shaft sleeve 100, and a driving belt 640 connected between the driving pulley 620 and the driven pulley 630. The above-structured rotation driving mechanism 600 contributes to reduction in the longitudinal dimension of the clamping rotation device, so that the layout of the clamping rotation device is more rational.

Referring to fig. 1 and 2, in some embodiments of the present invention, in order to improve the smoothness of the rotation of the sleeve 100, a bearing assembly 700 is further sleeved outside the sleeve 100, and the bearing assembly 700 is used to be fixed on the worktable 10.

Referring to fig. 1 and 2, in some embodiments of the present invention, a flange 110 is provided at an upper end of the sleeve 100, a tray 800 is mounted on the flange 110, the expansion blocks 300 are slidably disposed on the tray 800, and the first elastic member 400 is an elastic ring wrapped around all the expansion blocks 300. The tray 800 is connected to the flange plate 110 through a bolt, the expansion blocks 300 are placed on the surface of the tray 800, the tray 800 is provided with a limiting groove for limiting the movement of the expansion blocks 300, and all the expansion blocks 300 can be folded towards the middle by the elastic ring to clamp the driving inclined plane 211.

In some embodiments of the utility model, the expansion block 300 is provided with a positioning groove for receiving the elastic ring. The positioning groove helps prevent the elastic ring from being separated from the expansion block 300 or from shifting relative to the expansion block 300 to affect the stability of the operation of the clamping rotation device.

According to the utility model, the grinding equipment comprises a workbench 10, wherein the workbench 10 is provided with the clamping and rotating device in any technical scheme, and the workbench 10 is provided with a side surface grinding device 910 positioned on one side of the clamping and rotating device and an end surface grinding device 920 positioned above the clamping and rotating device. The grinding equipment with the structure can clamp the annular workpiece quickly and stably, can realize the functions of side grinding and end face grinding simultaneously, and improves grinding efficiency to a great extent.

In some embodiments of the present invention, the side surface polishing apparatus 910 includes a first transmission wheel set 911 rotatably disposed on the working table 10, a first abrasive belt 912 is rotatably disposed on the first transmission wheel set 911, the first abrasive belt 912 can abut against a side surface of the annular workpiece, and the first transmission wheel set 911 is connected to a reciprocating lifting mechanism 930 for driving the first transmission wheel set to move up and down. It can be understood that, the first transmission wheel set 911 is connected to a spacing adjuster capable of adjusting a distance between the first abrasive belt 912 and an annular workpiece on the clamping and rotating device, and the spacing adjuster drives the first transmission wheel set 911 away from the clamping and rotating device to achieve taking and placing of the annular workpiece, and the spacing adjuster may be a linear driver such as an air cylinder or an electric push rod. The side surface polishing apparatus 910 having the above structure has a simple polishing manner, and can continuously perform polishing process by replacing the first abrasive belt 912. During the process that the first abrasive belt 912 grinds the side surface of the annular workpiece, the reciprocating lifting mechanism 930 drives the first abrasive belt 912 on the first transmission wheel set 911 to reciprocate and lift, so that each position of the side surface of the annular workpiece along the height direction is fully ground, the uniformity of surface roughness is improved, excessive wear of the same part of the first abrasive belt 912 is avoided, and the service life of the first abrasive belt 912 is prolonged. It will be appreciated that the reciprocating lift mechanism 930 may be a piston cylinder that moves telescopically, or may be a crank-link mechanism driven by a motor.

In some embodiments of the present invention, the end surface grinding device 920 includes a second transmission wheel set 921 located above the clamping and rotating device, a second abrasive belt 922 capable of abutting against the upper end surface of the workpiece is rotatably disposed on the second transmission wheel set 921, and a linear lifting mechanism 923 is connected to the second transmission wheel set 921. The linear lifting mechanism 923 drives the second transmission wheel set 921 to ascend so as to realize the taking and placing of the annular workpiece. The end surface grinding device 920 with the above structure has a simple grinding mode, and can continuously grind and process by replacing the second abrasive belt 922. In some embodiments, the linear lift mechanism is a pneumatic cylinder.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A clamping and rotating device, comprising:

the shaft sleeve (100) is arranged on the workbench (10) in a rotating mode;

the pull rod (200) is movably arranged on the shaft sleeve (100) in a penetrating mode, a driving head (210) extending out of the shaft sleeve (100) is arranged at the upper portion of the pull rod (200), and a driving inclined plane (211) is arranged on the periphery of the driving head (210);

a plurality of expansion blocks (300) which are arranged on the shaft sleeve (100) and can move along the radial direction of the shaft sleeve (100);

the first elastic piece (400) is connected with the expansion block (300) and used for driving the expansion block (300) to abut against the driving inclined plane (211);

the lifting driving assembly (500) is used for driving the pull rod (200) to ascend relative to the shaft sleeve (100) so as to enable the expansion block (300) to move radially inwards, or driving the pull rod (200) to descend relative to the shaft sleeve (100) so as to enable the expansion block (300) to move radially outwards;

and the rotary driving mechanism (600) is connected with the shaft sleeve (100) and is used for driving the shaft sleeve (100) to rotate.

2. A clamping and rotating device according to claim 1, wherein:

the driving inclined plane (211) is a round table top with a large top and a small bottom, the expansion blocks (300) are distributed around the axial circumference of the pull rod (200), and the expansion blocks (300) are provided with matching inclined planes (310) which can be matched with the round table top.

3. A clamping and rotating device according to claim 1, wherein:

the lifting driving assembly (500) comprises a second elastic piece (510) and a jacking device (520), the second elastic piece (510) is arranged between the lower end of the pull rod (200) and the shaft sleeve (100) to drive the pull rod (200) to move downwards, and the jacking device (520) can jack up the pull rod (200) or separate from the pull rod (200).

4. A clamping and rotating device according to claim 1, wherein:

the rotary driving mechanism (600) comprises a motor (610), a driving wheel (620) arranged on an output shaft of the motor (610), a driven wheel (630) arranged outside the shaft sleeve (100), and a transmission belt (640) connected between the driving wheel (620) and the driven wheel (630).

5. A clamping and rotating device according to claim 1, wherein:

the bearing assembly (700) is further sleeved outside the shaft sleeve (100), and the bearing assembly (700) is used for being fixed on the workbench (10).

6. A clamping and rotating device according to claim 1, wherein:

the upper end of axle sleeve (100) is equipped with ring flange (110), install tray (800) on ring flange (110), tight piece (300) of expanding slide to set up on tray (800), first elastic component (400) are for binding all the elastic ring of the outside of tight piece (300) of expanding.

7. A clamping and rotating device according to claim 6, wherein:

the expansion block (300) is provided with a positioning groove for accommodating the elastic ring.

8. A grinding apparatus, characterized by comprising a table (10), wherein the table (10) is provided with a holding and rotating device according to any one of claims 1 to 7, and the table (10) is provided with a side grinding device (910) located on one side of the holding and rotating device and an end face grinding device (920) located above the holding and rotating device.

9. The grinding apparatus of claim 8, wherein:

the side surface grinding device (910) comprises a first transmission wheel set (911) rotatably arranged on the workbench (10), a first abrasive belt (912) is rotatably arranged on the first transmission wheel set (911), the first abrasive belt (912) can abut against the side surface of an annular workpiece, and the first transmission wheel set (911) is connected with a reciprocating lifting mechanism (930) for driving the first transmission wheel set to move up and down.

10. The grinding apparatus of claim 9, wherein:

the end face grinding device (920) comprises a second transmission wheel set (921) located above the clamping and rotating device, a second abrasive belt (922) capable of being abutted to the upper end face of the annular workpiece is arranged on the second transmission wheel set (921) in a rotating mode, and the second transmission wheel set (921) is connected with a linear lifting mechanism (923).