CN219337094U

CN219337094U - Horizontal axis round table surface grinding machine

Info

Publication number: CN219337094U
Application number: CN202320434945.9U
Authority: CN
Inventors: 张玉芳; 王海青; 张彬月
Original assignee: Hangzhou Guangjia Electromechanical Co ltd
Current assignee: Hangzhou Guangjia Electromechanical Co ltd
Priority date: 2023-03-09
Filing date: 2023-03-09
Publication date: 2023-07-14
Anticipated expiration: 2033-03-09

Abstract

The utility model belongs to the technical field of grinding machines, and particularly relates to a horizontal-shaft round-table surface grinding machine which comprises a machine tool body, a shaft frame and a rotary table, wherein the shaft frame and the rotary table are arranged on the machine tool body, a grinding wheel is rotatably arranged in the shaft frame, a main shaft and the grinding wheel are detachably arranged in the shaft frame, the grinding wheel is sleeved at the end part of the main shaft, a bearing lock structure is arranged in the inner thread of the end part of the main shaft, a compression ring is movably arranged on one side of the bearing lock structure outside the grinding wheel through a compression bolt in threaded connection, two torsional jacks I penetrate through the compression ring and the bearing lock structure, an elastic rod is rotatably inserted in the torsional jacks I, and the end part of the elastic rod is in threaded connection with the compression bolt through meshed transmission between the inner side of the bearing lock structure. The utility model can realize the modularization of the installation of the main shaft of the grinding machine, can improve the tightness of the installation and avoid the erosion of internal fittings such as the main shaft and the like by water stains.

Description

Horizontal axis round table surface grinding machine

Technical Field

The utility model belongs to the technical field of grinding machines, and particularly relates to a horizontal-axis round-table surface grinding machine.

Background

The horizontal axis round table plane is a horizontal grinder, a round electromagnetic chuck workbench, a high-efficiency, precise and stable processing machine tool for grinding the periphery of a grinding wheel is adopted, and the upper plane and the lower plane of a workpiece can obtain higher parallelism, dimensional accuracy and workpiece surface roughness by adopting the grinding wheel periphery for grinding.

Problems of the prior art:

the main shaft is one of important accessories of the grinding machine, whether the main shaft is damaged determines the running stability and the error in machining, the main reason for the main shaft damage is water inflow in the running process, bearing and shaft bodies are caused or corrosion points generated by water stains are caused, the shaft center is deflected and damaged in the running process on the main shaft for a long time, the reason is that a waterproof gasket is damaged in the installation process or a movable gap is formed after the installation and long-time use, water stains are finally immersed, more disassembly and detection are performed, and on one hand, friction is caused between parts such as screws and parts, so that larger gaps are generated.

In addition, with the development of horizontal axis round platform surface grinding machine technology, the modularization will promote the value of grinding machine greatly to can promote its application range, and can promote the swift change of spare part in the use.

Disclosure of Invention

The utility model aims to provide a horizontal-axis round-table surface grinding machine, which can realize modularization of installation of a main shaft of the grinding machine, can improve the tightness of the installation and avoid erosion of internal accessories such as the main shaft by water stains.

The technical scheme adopted by the utility model is as follows:

the horizontal axis round table surface grinding machine comprises a machine tool body, a shaft bracket and a rotary table, wherein the shaft bracket and the rotary table are arranged on the machine tool body, and a grinding wheel is rotatably arranged in the shaft bracket;

the inside of the shaft bracket is detachably mounted with the grinding wheel through a main shaft which is rotatably mounted;

the grinding wheel is sleeved at the end part of the main shaft, a bearing lock structure is arranged in the inner thread of the end part of the main shaft, and a compression ring is movably arranged on one side of the bearing lock structure outside the grinding wheel through a compaction bolt in threaded connection;

the clamping ring is installed on one side of the grinding wheel through the compaction bolt, and the grinding wheel is installed on the end portion of the main shaft through the compaction bolt, the bearing lock structure and the main shaft.

The bearing lock structure comprises a threaded column body, a retainer and a ring nut which are sequentially arranged, threads are arranged on the outer side of the threaded column body, a second central hole for inserting a compaction bolt is formed in the middle of the threaded column body, two torsion jacks II penetrate through two ends of the threaded column body, and a second rolling groove is formed in one side of the threaded column body, adjacent to the retainer;

the outside of the ring nut is provided with a latch and is in meshed transmission connection with the end part of the elastic rod, and one side of the adjacent retainer of the ring nut is provided with a rolling groove I which is matched with the rolling groove II;

the retainer is rotatably provided with a plurality of annular arrays of rolling needles, and the retainer is rotatably arranged in the second rolling groove and the first rolling groove through the rolling needles.

The shaft bracket is movably arranged on the machine tool body through a guide rail, the grinding wheel is driven by a motor arranged at the other end to be in rotary connection with the shaft bracket, and the rotary table is rotatably arranged on the machine tool body.

The waterproof rubber ring is also clamped and installed between the grinding wheel and the pressing ring, waterproof grooves for positioning the waterproof rubber ring are formed in the opposite sides of the pressing ring and the grinding wheel, and the inner diameter of each waterproof groove is larger than the outer diameter of the bearing lock structure.

The middle part of the pressing ring is provided with a first central hole for inserting a compaction bolt, a fitting groove is formed in the outer side of the first central hole and positioned at one side away from the grinding wheel, and a positioning groove is formed in the bottom of the fitting groove;

the length of the positioning groove is smaller than the annular radius of the fit groove, and the positioning groove penetrates through the first central hole.

The end part of the compaction bolt is matched with the matching groove and the positioning groove, and a rubber waterproof gasket is clamped and installed between the compaction bolt and the matching groove.

The end of the elastic rod faces the inside to be provided with an inner hexagonal hole, a positioning column is inserted into the inner hexagonal hole, the positioning columns are fixedly connected through waterproof rings, and the waterproof rings are detachably mounted on the outer sides of the pressing rings.

The main shaft end is provided with a mounting groove for mounting the bearing lock structure, the bottom of the mounting groove extends to be provided with a compaction bolt for adapting, and the mounting groove is in clearance fit with the compaction bolt.

The utility model has the technical effects that:

according to the utility model, the elastic rod and the compaction bolt cooperatively rotate, and the compaction bolt is used for extruding and locking the screw column body and the compression ring, so that the modularized rapid installation of the grinding wheel on the main shaft is realized, and the damage of the waterproof gasket caused in the process of rotating the bolt can be effectively avoided in the installation process.

According to the utility model, the compaction bolt and the main shaft are in direct threaded connection, so that the problem of intermittent increase in the threaded installation process between the compaction bolt and the main shaft caused by repeated disassembly can be avoided, and the service life of the structure is further prolonged.

According to the utility model, in the process of installing the waterproof rubber ring and the rubber waterproof gasket, the waterproof rubber ring and the rubber waterproof gasket are installed in a high extrusion mode, the waterproof gasket cannot be damaged, the installation integrity of the waterproof rubber ring and the rubber waterproof gasket is ensured, and the waterproof effect is ensured.

Drawings

FIG. 1 is a schematic structural installation of the present utility model;

FIG. 2 is a schematic view of the structural installation of the grinding wheel of the present utility model;

FIG. 3 is a schematic view of the structure of the press ring, the press bolt and the waterproof ring in the present utility model;

FIG. 4 is a schematic view of the structure of the bearing lock of the present utility model;

FIG. 5 is a cross-sectional view of the structure of A-A of FIG. 2 in accordance with the present utility model;

fig. 6 is a schematic view of the structure of the screw body and the retainer according to the present utility model.

In the drawings, the list of components represented by the various numbers is as follows:

1. a machine tool body; 2. a shaft bracket;

3. grinding wheel; 301. a water-repellent tank; 302. a waterproof rubber ring;

4. a turntable; 5. a main shaft; 501. a mounting groove;

6. a compression ring; 601. a first central hole; 602. a fitting groove; 603. a positioning groove; 604. twisting the first jack; 605. a rubber waterproof gasket;

7. compacting the bolts;

8. a waterproof ring; 801. positioning columns; 802. an elastic rod;

9. a screw column; 901. a second central hole; 902. twisting the second jack; 903. rolling a groove II;

10. a retainer; 101. needle roller;

11. a ring nut; 111. rolling a groove I.

Detailed Description

The present utility model will be specifically described with reference to examples below in order to make the objects and advantages of the present utility model more apparent. It should be understood that the following text is intended to describe only one or more specific embodiments of the utility model and does not limit the scope of the utility model strictly as claimed.

As shown in fig. 1-6, the horizontal spindle round table surface grinding machine comprises a machine tool body 1, a shaft bracket 2 and a rotary table 4, wherein the shaft bracket 2 and the rotary table 4 are arranged on the machine tool body 1, a grinding wheel 3 is rotatably arranged in the shaft bracket 2, a spindle 5 which is rotatably arranged in the shaft bracket 2 and the grinding wheel 3 are detachably arranged, the grinding wheel 3 is sleeved at the end part of the spindle 5, a bearing lock structure is arranged in the internal thread of the end part of the spindle 5, and a compression ring 6 is movably arranged on one side of the outer part of the grinding wheel 3 through a compaction bolt 7 in threaded connection.

Wherein, pedestal 2 passes through guide rail movable mounting on lathe body 1, and grinding wheel 3 realizes rotating connection between its and pedestal 2 through the motor drive that the other end set up, and carousel 4 rotates and installs on lathe body 1.

Further, two first torsion insertion holes 604 are penetrated between the pressing ring 6 and the bearing lock structure, an elastic rod 802 is inserted in the first torsion insertion holes 604 in a rotating mode, the end portion of the elastic rod 802 is in threaded connection with a compaction bolt 7 through meshed transmission between the end portion of the elastic rod 802 and the inner side of the bearing lock structure, the pressing ring 6 is installed on one side of the grinding wheel 3 through clamping of the compaction bolt 7, and the grinding wheel 3 is installed on the end portion of the main shaft 5 through the compaction bolt 7, the bearing lock structure and the main shaft 5.

Referring to fig. 4-6, the bearing lock structure comprises a threaded column 9, a retainer 10 and a ring nut 11 which are sequentially arranged, threads are arranged on the outer side of the threaded column 9, a second central hole 901 for inserting the compaction bolt 7 is formed in the middle of the threaded column 9, two torsion insertion holes 902 penetrate through two ends of the threaded column 9, and a second rolling groove 903 is formed in one side of the threaded column 9 adjacent to the retainer 10.

The outside of the ring nut 11 is provided with a latch and is in meshed transmission connection with the end part of the elastic rod 802, and one side of the ring nut 11 adjacent to the retainer 10 is provided with a first rolling groove 111 matched with the second rolling groove 903.

A plurality of needle rollers 101 are rotatably mounted on the retainer 10 in an annular array, and the retainer 10 is rotatably mounted inside the second rolling groove 903 and the first rolling groove 111 by the needle rollers 101.

According to the structure, the main shaft installation modularization mode is realized:

firstly, a bearing lock structure is arranged in a main shaft 5, a compression ring 6 and a compaction bolt 7 are arranged on the side face of a grinding wheel 3, the compaction bolt 7 is arranged in the annular nut 11 in a threaded manner by inserting an elastic rod 802 and rotating the elastic rod 802 for realizing transmission of the compaction bolt and the annular nut 11, before rotating the annular nut 11, the compaction bolt 7 is required to be arranged in the annular nut 11 in a threaded manner for realizing simple connection, after connection, the outer side of the compaction bolt 7 is positioned and arranged on the outer side of the compression ring 6, and then the compaction bolt is inserted into an inner hexagonal hole at the tail part of the elastic rod 802 through an inner hexagonal elastic screwdriver and rotated. Along with the cooperative rotation of the compaction bolt 7, the compaction bolt 7 is gradually screwed and locked on the compaction bolt 7, and along with the extrusion of the stud body 9 and the compression ring 6, the modularized rapid installation of the grinding wheel 3 on the main shaft is realized, and in the installation process, the damage of the waterproof gasket caused in the bolt rotating process can be effectively avoided.

In addition, the compaction bolt 7 and the main shaft 5 are in direct threaded connection, and the compaction bolt 7 can be disassembled by single threads, so that the problem of intermittent increase in the process of installing the threads between the compaction bolt 7 and the main shaft 5 due to repeated disassembly can be avoided, and the service life of the structure is further prolonged.

Referring to fig. 2 and 3, a waterproof rubber ring 302 is further installed between the grinding wheel 3 and the pressing ring 6 in a clamping manner, waterproof grooves 301 for positioning the waterproof rubber ring 302 are formed on opposite sides of the pressing ring 6 and the grinding wheel 3, and inner diameters of the waterproof grooves 301 are larger than outer diameters of the bearing lock structures.

According to the above structure, in the process of installing and screw-fastening the compaction bolt 7, the extrusion positioning of the pressing ring 6 is realized by fastening extrusion of the compaction bolt 7 and the bearing lock structure, and the pressing ring 6 is installed in a non-rotating manner in the fastening process and cannot be subjected to excessive rotating friction with the surface of the grinding wheel 3, so that the damage to the waterproof rubber ring 302 cannot be caused, the installation integrity of the waterproof rubber ring 302 is ensured, the waterproof rubber ring 302 cannot be damaged, and the waterproof effect is ensured.

Referring to fig. 3, a central hole 601 for inserting the compacting bolt 7 is formed in the middle of the pressing ring 6, a fitting groove 602 is formed on the outer side of the central hole 601 and on the side away from the grinding wheel 3, and a positioning groove 603 is formed at the bottom of the fitting groove 602.

Further, the end of the compression bolt 7 is engaged with the engagement groove 602 and the positioning groove 603, and the rubber waterproof gasket 605 is interposed between the compression bolt 7 and the engagement groove 602.

According to the above structure, the installation mode is still that the compaction bolt 7 is not required to rotate through installation, the ring nut 11 in threaded connection with the compaction bolt 7 rotates, and then the fastening of the compaction bolt 7 is achieved, and then the compaction bolt 7 is achieved to press the compression ring 6 for installation, and in the installation process, the location is achieved through the fit position of the compaction bolt 7 and the locating groove 603, and the rotation of the compaction bolt 7 in the process of rotating the ring nut 11 is avoided, so that the rubber waterproof gasket 605 is damaged.

In addition, the length of the positioning groove 603 is smaller than the annular radius of the fitting groove 602, and the positioning groove 603 penetrates through the first central hole 601, so that gaps are avoided at the side parts between the fitting groove 602 and the compacting bolt 7, and the waterproof effect after the installation is guaranteed.

Referring to fig. 5 in detail, an installation groove 501 for installing a bearing lock structure is formed at the end of the spindle 5, a compaction bolt 7 is adapted to be provided at the bottom of the installation groove 501 in an extending manner, and a clearance fit is formed between the installation groove 501 and the compaction bolt 7, so that interference between the compaction bolt 7 and the bottom of the installation groove 501 can be avoided, and the compression ring 6 and the compaction bolt 7 cannot be fastened by threads.

In fig. 3 and 4, the end of the elastic rod 802 is provided with an inner hexagonal hole towards the inside, the inside of the inner hexagonal hole is inserted with a positioning column 801, the positioning columns 801 are fixedly connected through a waterproof ring 8, and the waterproof ring 8 is detachably mounted on the outer side of the pressing ring 6.

Here, the ring nut 11 is rotated through the elastic rod 802 and the compaction bolt 7 is installed, if the elastic rod 802 is pulled out after the compaction bolt 7 and the ring nut 11 are installed, the rotation of the ring nut 11 is caused, the structure is disassembled, and after the elastic rod 802 is always installed inside the first torsion jack 604, on one hand, the collection of the elastic rod 802 in the disassembling and assembling process can be avoided, in addition, the positioning of the ring nut 11 can be realized through the meshing relationship between the end part of the elastic rod 802 and the side surface of the ring nut 11, the waterproof ring 8 positioned on the outer side of the elastic rod 802 can effectively prevent the rotation of the elastic rod 802 through the inserted positioning column 801, and the opening at the first torsion jack 604 is waterproof through the connection relationship between the waterproof ring 8 body and the outer side surface of the pressing ring 6.

The connection mode of the waterproof ring 8 and the outer side surface of the pressing ring 6 comprises adhesion and threaded installation, firstly, it is required to determine that the waterproof ring 8, the positioning column 801 and the elastic rod 802 are all made of metal materials, and the waterproof ring 8 and the pressing ring 6 are adhered by glue, and the glue connection mode is affected by temperature and vibration factors, so that a firmer bolt installation mode is required;

the surface of the waterproof ring 8 is provided with jacks for inserting bolts, and the surface of the corresponding pressing ring 6 is provided with screw holes for installing and positioning the bolts, so that the waterproof ring 8 and the elastic rod 802 are positioned.

The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model. Structures, devices and methods of operation not specifically described and illustrated herein, unless otherwise indicated and limited, are implemented according to conventional means in the art.

Claims

1. A horizontal axis bench surface grinder, comprising:

the grinding wheel (3) is rotatably arranged in the shaft bracket (2);

the inside of the shaft bracket (2) is detachably mounted with the grinding wheel (3) through a main shaft (5) which is rotatably mounted;

the grinding wheel (3) is sleeved at the end part of the main shaft (5), a bearing lock structure is arranged in threads at the inner part of the end part of the main shaft (5), and a compression ring (6) is movably arranged on one side of the bearing lock structure outside the grinding wheel (3) through a compaction bolt (7) in threaded connection;

two first torsion jacks (604) are penetrated between the compression ring (6) and the bearing lock structure, an elastic rod (802) is inserted through the first torsion jacks (604) in a rotating mode, the end portion of the elastic rod (802) is in threaded connection with a compaction bolt (7) through meshing transmission between the inner side of the bearing lock structure, the compression ring (6) is installed on one side of the grinding wheel (3) through the compaction bolt (7) in a clamping mode, and the grinding wheel (3) is installed on the end portion of the main shaft (5) through the compaction bolt (7), the bearing lock structure and the main shaft (5).

2. The horizontal axis bench surface grinding machine as set forth in claim 1 wherein: the bearing lock structure comprises a threaded column body (9), a retainer (10) and a ring nut (11) which are sequentially arranged, threads are arranged on the outer side of the threaded column body (9), a center hole II (901) for inserting a compaction bolt (7) is formed in the middle of the threaded column body (9), two torsion insertion holes II (902) penetrate through two ends of the threaded column body (9), and a rolling groove II (903) is formed in one side, adjacent to the retainer (10), of the threaded column body (9);

the outside of the ring nut (11) is provided with a latch and is in meshed transmission connection with the end part of the elastic rod (802), and one side of the ring nut (11) adjacent to the retainer (10) is provided with a first rolling groove (111) which is matched with the second rolling groove (903);

the retainer (10) is rotatably provided with a plurality of needle rollers (101) which are arrayed in a ring shape, and the retainer (10) is rotatably arranged in the second rolling groove (903) and the first rolling groove (111) through the needle rollers (101).

3. A horizontal axis bench surface grinding machine as set forth in claim 2 wherein: the grinding wheel (3) is driven by a motor arranged at the other end to be in rotary connection with the shaft bracket (2), and the rotary table (4) is rotatably arranged on the machine tool body (1).

4. A horizontal axis bench surface grinding machine as set forth in claim 3 wherein: waterproof rubber ring (302) is still installed to the centre gripping between emery wheel (3) and clamping ring (6), waterproof groove (301) that are used for fixing a position waterproof rubber ring (302) are all seted up to clamping ring (6) and emery wheel (3) opposite side, waterproof groove (301) internal diameter is greater than the external diameter of bearing lock structure.

5. A horizontal axis bench surface grinding machine as set forth in claim 3 wherein: a first central hole (601) for inserting a compaction bolt (7) is formed in the middle of the compression ring (6), a fitting groove (602) is formed in the outer side of the first central hole (601) and positioned at one side away from the grinding wheel (3), and a positioning groove (603) is formed in the bottom of the fitting groove (602);

the length of the positioning groove (603) is smaller than the annular radius of the fitting groove (602), and the positioning groove (603) penetrates through the first central hole (601).

6. The horizontal axis bench surface grinding machine as set forth in claim 5 wherein: the end of the compaction bolt (7) is matched with the matching groove (602) and the positioning groove (603), and a rubber waterproof gasket (605) is clamped and installed between the compaction bolt (7) and the matching groove (602).

7. A horizontal axis bench surface grinding machine as set forth in claim 3 wherein: the end part of the elastic rod (802) faces towards the inside, a positioning column (801) is inserted into the inside of the inner hexagonal hole, the positioning columns (801) are fixedly connected through waterproof rings (8), and the waterproof rings (8) are detachably mounted on the outer side of the compression ring (6).

8. A horizontal axis bench surface grinding machine as set forth in claim 3 wherein: the end part of the main shaft (5) is provided with a mounting groove (501) for mounting the bearing lock structure, the groove bottom of the mounting groove (501) is extended and provided with a compaction bolt (7) for adapting, and the mounting groove (501) is in clearance fit with the compaction bolt (7).