CN219901734U - A quick-changing device for grinding wheels - Google Patents

Abstract

The utility model provides a wheel quick change device polishes, is equipped with assembly axle and assembly cover, the wheel of polishing is installed on the assembly and is matched, be equipped with the locating hole on the assembly axle, still be equipped with the trip stator in the locating hole, the center of assembly axle still is equipped with coaxial hole, still be equipped with the trip dead axle that can slide in it in the coaxial hole, still be equipped with the trip dead axle on the circumference outer wall of trip dead axle, the locating hole radially runs through assembly axle to coaxial hole, promotes the trip dead axle and can make the trip dead inclined plane press trip stator along the locating hole towards the radial outside direction removal of assembly axle and form the protruding card assembly that blocks of exposing and matched. According to the technical scheme, the grinding wheel is positioned by controlling the movable stator through the movable fixed shaft, so that the grinding wheel can be quickly disassembled by pressing the movable fixed shaft.

Description

A quick-changing device for grinding wheels

Technical field

The utility model relates to the technical field of quickly changing grinding wheels for high-speed rotating grinders in industry, and specifically to a grinding wheel quick-changing device suitable for high-speed rotation.

Background technique

In the field of modern fully automatic and efficient production lines, we often encounter the technical situation of continuous grinding and polishing of the outer surface of continuous bar stock. Usually, continuous grinding and polishing uses a high-speed rotating driver to drive the grinding wheel for grinding, but the grinding speed of the grinding wheel consumes It is usually relatively fast, so when the grinding wheel is consumed to a designated position, it must be manually removed from the driver and replaced with a new grinding wheel before it can continue to be used. However, existing grinding wheels are usually fixed by bolts and nuts, so the disassembly process is quite cumbersome and time-consuming. However, current production lines have very high requirements for work efficiency. A production line usually has multiple identical grinders participating in the work. If the conventional manual method is used to replace the grinding wheels of the grinders one by one, it will waste a lot of time and reduce the efficiency of the production line. Work efficiency. In order to solve such problems, improve the production efficiency of the production line, and shorten the time for the grinder to replace the grinding wheel, it has become an inevitable trend for technicians in the field to develop a grinding wheel quick-change device that can replace the grinding wheel in seconds. .

Utility model content

This embodiment provides a grinding wheel quick change device for quickly changing the grinding wheel on the grinding device. A positioning hole with a wandering stator is provided in the radial direction of the assembly shaft, and a positioning hole is provided in the radial direction of the assembly shaft. The center is equipped with a sliding fixed shaft, which controls the free stator to position the grinding wheel, so that the grinding wheel can be quickly disassembled by pressing the free fixed shaft. This technical solution has a simple structure and is easy to implement.

Specifically, on the one hand, a grinding wheel quick change device is used to quickly replace the grinding wheel d of the grinder. It is provided with an assembly shaft zp and an assembly set zt. The grinding wheel d is installed on the assembly set zt, and the assembly set zt It is sleeved on the assembly shaft zp, and the assembly shaft zp is coaxially fixed on the driver q. The assembly shaft zp is provided with a positioning hole dw, and the positioning hole dw is also provided with a traveling stator yd. The assembly shaft zp is The center is also provided with a coaxial hole tk, and the coaxial hole tk is also provided with a free fixed shaft ydd that can slide in it. The free fixed shaft ydd is also provided with a free fixed slope yx on the circumferential outer wall, so The positioning hole dw radially penetrates the assembly axis zp to the coaxial hole tk. Pushing the freewheel fixed shaft ydd can cause the freewheel fixed slope yx to press the freewheel stator yd to move radially outward along the positioning hole dw toward the assembly shaft zp and form an exposure. The protrusion locks the assembly kit.

According to an aspect of the specific implementation of the embodiment of the present invention, the two sides of the free ramp yx are also provided with a blocking surface kz and a guide surface dx respectively. The blocking surface kz is a cylindrical surface, and the guide surface dx is a slope, the locking surface kz can lock the free stator yd irreversibly outward, and the slope of the guide surface dx is greater than the slope of the free stator yx.

According to an aspect of the specific implementation of the embodiment of the present invention, a plurality of positioning holes dw are evenly distributed along the circumference of the central axis of the assembly axis zp, and each positioning hole dw is provided with an independently sliding stator yd, so The positioning hole dw is a cylindrical hole, and the wandering stator yd is spherical.

According to an aspect of the specific implementation of the embodiment of the present invention, the end of the assembly set zt is also provided with a stop slope ztd, and the wandering stator yd can abut and press against the stop slope ztd after protruding outward. Tight fitting package zt.

According to an aspect of the specific implementation of the embodiment of the present invention, the end of the assembly shaft zp is also provided with a stop sleeve zdt, and the first end of the stop sleeve zdt is also provided with a free stator limiting surface. ydx, the traveling stator limiting surface ydx is an inner conical surface and its edge covers the positioning hole dw.

According to an aspect of the specific implementation of the embodiment of the present invention, the second end of the stop sleeve zdt is also provided with a free fixed shaft limiting surface zdtx, and the free fixed shaft ydd is also provided with a limiting shoulder yddj , the fixed shaft limiting surface zdtx can abut against the limiting shoulder yddj to stop the fixed shaft ydd.

Description of the drawings

The features, advantages and technical effects of exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

Serial number description: grinding wheel d, assembly shaft zp, positioning hole dw, traveling stator yd, coaxial hole tk, traveling fixed shaft ydd, spring th, locking surface kz, traveling bevel yx, guide surface dx, card withdrawal slot tkk , limit shoulder yddj, assembly set zt, stop slope ztd, flange cover fp, driver q, stop sleeve zdt, travel stator limit surface ydx, travel fixed shaft limit surface zdtx, thread w, wrench surface bb .

Figure 1 is a schematic diagram of the basic structure of the overall layout of the embodiment of the present invention.

Figure 2 is a partially enlarged schematic diagram of an embodiment of the present utility model.

Figure 3 is a schematic diagram of the action of pressing the floating fixed shaft ydd according to the embodiment of the present invention.

Figure 4 is a schematic diagram of the stator yd retracting into the card ejection slot tkk according to the embodiment of the present invention.

Figure 5 is a schematic diagram of the disassembly of the grinding wheel d according to the embodiment of the present invention.

Figure 6 is a schematic cross-sectional view of the circumferential layout of the stator yd according to the embodiment of the present invention.

Figure 7 is a detailed structural diagram of the stop sleeve zdt according to the embodiment of the present invention.

Figure 8 is a detailed structural diagram of the floating fixed axis ydd according to the embodiment of the present invention.

In the drawings, identical components have the same reference numerals. The drawings are not drawn to actual scale.

Implementation

The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to illustrate the principles of the present utility model, but cannot be used to limit the scope of the utility model, that is, the utility model is not limited to the described preferred embodiments. The scope of the utility model Defined by the claims.

In the description of the embodiments of the present invention, it should be noted that, unless otherwise stated, "perpendicular" and "parallel" are not just absolute meanings in the mathematical sense, but can be understood as "approximately perpendicular" and "approximately parallel."

Figure 1 is a schematic diagram of the basic structure of the overall layout of the embodiment of the present invention.

Figure 2 is a partially enlarged schematic diagram of an embodiment of the present utility model.

As shown in Figures 1 and 2, this embodiment provides a grinding wheel quick change device for quickly changing the grinding wheel on the grinding device, by opening a built-in free stator in the radial direction of the assembly shaft. The positioning hole is provided, and a sliding fixed shaft is provided in the center of the assembly shaft. The free fixed shaft is used to control the free stator to position the grinding wheel, so that the grinding wheel can be quickly disassembled by pressing the free fixed shaft. The specific implementation can be provided with a conventional cylindrical assembly shaft zp and an assembly set zt. The grinding wheel d adopts an existing disc-type grinding wheel or a flap wheel. The grinding wheel d passes through the mounting hole provided in the middle. The sleeve is installed on the assembly set zt. There is also a flange cover fp on one side of the assembly set zt. Through the mutual installation of the flange cover fp and the assembly set zt, the grinding wheel d is firmly fixed on the assembly set zt. superior.

Figure 6 is a schematic cross-sectional view of the circumferential layout of the stator yd according to the embodiment of the present invention.

As shown in Figure 6, the assembly set zt is sleeved on the assembly shaft zp. The assembly shaft zp is internally provided with a driver hole that is fixedly installed in conjunction with the driver q. The assembly shaft zp is coaxial through the driver hole. Fixed on drive q. The outer circumferential surface of the assembly shaft zp is also provided with a plurality of positioning holes dw. The center of the assembly shaft zp is also provided with a coaxial hole tk that is coaxial with its outer circumferential surface. The positioning holes dw radially penetrate the assembly. axis zp to coaxial hole tk. Multiple positioning holes dw are evenly distributed along the circumference of the central axis of the assembly axis zp, and each positioning hole dw is provided with an independently sliding stator yd. In this embodiment, the positioning holes dw are cylindrical holes. , the wandering stator yd is a spherical steel ball. According to the direct replacement of the technical means commonly used by those skilled in the art, the positioning hole dw can also be set as a square hole, and the free stator yd can be set as a square slider.

Figure 3 is a schematic diagram of the action of pressing the floating fixed shaft ydd according to the embodiment of the present invention.

Figure 4 is a schematic diagram of the stator yd retracting into the card ejection slot tkk according to the embodiment of the present invention.

Figure 8 is a detailed structural diagram of the floating fixed axis ydd according to the embodiment of the present invention.

As shown in Figures 3, 4 and 8, according to an aspect of the specific implementation of the embodiment of the present invention, the coaxial hole tk is also provided with a freewheel that can slide coaxially therein. ydd, the freewheeling fixed shaft ydd is also arranged in a cylindrical shape, and its outer circumferential wall is also provided with a conical freewheeling inclined surface yx, and both sides of the freewheeling fixed inclined surface yx are also respectively provided with cylindrical stopping surfaces. kz and a conical guide surface dx, the locking surface kz is a right cylindrical surface, the guide surface dx is a conical bevel with a larger slope, and there is another side on the other side of the guide surface dx relative to the free inclined surface yx. There is a card withdrawal slot tkk. The fixed shaft ydd is installed in the coaxial hole tk, and by sliding the fixed shaft ydd, the locking surface kz, the fixed slope yx, the guide surface dx and the detent tkk can be moved to the bottom of the free stator yd. The locking surface kz can irreversibly lock the free stator yd outward, and the guide surface dx has a slope greater than the slope of the free stator yx and can be used to guide the free stator yd to slide outward along the positioning hole dw.

According to an aspect of the specific implementation of the embodiment of the present invention, pushing the freewheel fixed shaft ydd can cause the freewheel stator yx to press the freewheel stator yd to move radially outward along the positioning hole dw toward the assembly axis zp and form an exposed protrusion. . Among them, the lateral end face of the assembly set zt facing the flange cover fp is also provided with a cone-shaped stop slope ztd. After the free stator yd forms an exposed protrusion, it can abut against the stop slope ztd to lock it. Stop the axial position of the assembly set zt relative to the assembly axis zp. When the free stator yd slides along the trajectory of the free stator yx until it comes into contact with the blocking surface kz, the free stator yd moves to the highest position and cannot retreat. Among them, a spring th is also provided between the assembly shaft zp and the fixed shaft ydd. The spring th is built into the coaxial hole tk. The spring th is set as a compression spring. The spring th can continuously push the fixed shaft. The shaft ydd moves to the outside of the coaxial hole tk and keeps the blocking surface kz below the wandering stator yd. At this time, the assembly assembly zt is irreversibly locked on the assembly shaft zp.

According to one aspect of the specific implementation of the embodiment of the present invention, when the driver q drives the assembly shaft zp to rotate at high speed, the assembly shaft zp can drive all the wandering stators yd located in the positioning hole dw to rotate at high speed and act under the action of centrifugal force. Continuously press the conical stop slope ztd downward and outward. The higher the speed of the driver q, the greater the centrifugal force. The more the assembly set zt is pressed on the assembly shaft zp, thus preventing the gap between the assembly set zt and the assembly shaft zp. Dangerous vibrations may occur due to gaps.

According to an aspect of the specific implementation of the embodiment of the present invention, when the card withdrawal groove tkk slides to the bottom of the traveling stator yd, the traveling stator yd can retreat into the gap formed by the card withdrawal groove tkk. At this time, the traveling stator yd moves from the positioning hole When dw is retracted and separated from the stop slope ztd, the assembly set zt is no longer limited by the locking position of the free stator yd, so that the assembly set zt can be pulled out from the assembly shaft zp.

Figure 7 is a detailed structural diagram of the stop sleeve zdt according to the embodiment of the present invention.

As shown in Figure 7, according to an aspect of the specific implementation of the embodiment of the present invention, the end of the assembly shaft zp is also covered with a stop sleeve zdt, and the stop sleeve zdt is arranged in a cylindrical shape, and its The outer circumference is set as a cylindrical surface and is evenly distributed with wrench faces bb for the wrench to apply torque. The middle part of the inner circumference is also provided with a thread w. The stop sleeve zdt is coaxially threaded with the assembly shaft zp through the thread w. The first end of the stop sleeve zdt is also provided with a conical traveling stator limiting surface ydx. The traveling stator limiting surface ydx is an inner conical surface and its edge can be installed on the assembly shaft in the stop sleeve zdt. When zp is put on, the cover passes through the positioning hole dw, so that the wandering stator yd will not slide freely from the outward direction of the positioning hole dw. The second end of the stop sleeve zdt is also provided with a limit surface zdtx for the fixed shaft, and a limit shoulder yddj is also provided on the fixed shaft ydd. The limit surface zdtx for the fixed shaft can be connected with the limit surface. The shaft shoulders yddj are in contact with each other to stop and limit the sliding position of the fixed shaft ydd.

Figure 1 is a schematic diagram of the basic structure of the overall layout of the embodiment of the present invention.

Figure 3 is a schematic diagram of the action of pressing the floating fixed shaft ydd according to the embodiment of the present invention.

Figure 5 is a schematic diagram of the disassembly of the grinding wheel d according to the embodiment of the present invention.

As shown in Figures 1, 3 and 5, according to one aspect of the specific implementation of the embodiment of the present utility model, the specific working process of the rapid disassembly of the grinding wheel d is as follows: first, the worker's hand presses the traveling fixed shaft ydd, and then the traveling fixed shaft ydd is pressed. The fixed shaft ydd slides toward the inside of the coaxial hole tk and compresses the spring th under the pressure of pressing. At the same time, the blocking surface kz slides away from the lower surface of the traveling stator yd. The card withdrawal slot tkk slides below the free stator yd so that the free stator yd can slide freely along the positioning hole dw into the gap of the card withdrawal slot tkk. At this time, the stop slope ztd provided on the assembly set zt and the free stator yd interact with each other. The locking effect of the traveling stator yd is lost due to disengagement, so that the assembly set zt can freely slide outward on the assembly axis zp to achieve quick disassembly.

The specific working process of the rapid installation of the grinding wheel d is as follows: first, workers use the working time before the production line is shut down to manually install the grinding wheel d that needs to be replaced on the assembly set zt and assemble the flange cover fp. When the production line is stopped, the worker presses the fixed shaft ydd with his hands, and the fixed shaft ydd slides toward the inside of the coaxial hole tk and compresses the spring th under the pressure of the pressing. At the same time, the blocking surface kz slides away from the lower surface of the free stator yd. , the card ejection groove tkk slides to the bottom of the traveling stator yd so that the traveling stator yd can freely slide into the gap of the card ejection groove tkk. At this time, while the worker continues to press the free fixed shaft ydd, he sets the assembly set zt with the new grinding wheel d on the assembly shaft zp and pushes it to the bottom. Then the worker releases the fixed shaft ydd with his hand, and the fixed shaft ydd slides toward the outside of the coaxial hole tk under the pushing pressure of the spring th. The free stator yd leaves the withdrawal groove tkk and moves along the guide surface dx under its guiding function. Gradually slide along the positioning hole dw toward the stop slope ztd. As the spring th continues to push the free stator ydd outward, the guide surface dx breaks away from the free stator yd, and the free ramp yx slides to the bottom of the free stator yd. The free stator yd is under the action of the free ramp yx. Gradually tighten the stop ramp ztd. At the same time, the spring th continues to push the free fixed shaft ydd outward, the free fixed inclined surface yx is separated from the free stator yd, and the locking surface kz slides to the lower surface of the free stator yd. At this time, the stopper provided on the assembly set zt The inclined surface ztd and the traveling stator yd are pressed against each other to form an irreversible locking effect, so that the assembly set zt can be axially fixed on the assembly shaft zp.

It should be understood that the description of specific embodiments of the present invention is illustrative and should not be interpreted as an improper limitation on the protection scope of the present invention. The protection scope of the present invention is defined by the claims and covers all embodiments and their obvious equivalents that fall within the scope.

Claims (6)

1. A quick-changing device for grinding wheels, used to quickly replace the grinding wheel (d) of a grinder. It is provided with an assembly shaft (zp) and an assembly set (zt). The grinding wheel (d) is installed in the assembly set (zt). ), the assembly set (zt) is sleeved on the assembly shaft (zp), and the assembly shaft (zp) is coaxially fixed on the driver (q), which is characterized in that the assembly shaft (zp) is provided with a positioning hole (dw) ), the positioning hole (dw) is also provided with a traveling stator (yd), the center of the assembly shaft (zp) is also provided with a coaxial hole (tk), and the coaxial hole (tk) is also provided with a There is a free fixed shaft (ydd) that can slide in it. The free fixed shaft (ydd) is also provided with a free fixed inclined plane (yx) on the circumferential outer wall. The positioning hole (dw) radially penetrates the assembly shaft (zp). ) to the coaxial hole (tk), pushing the free fixed shaft (ydd) can make the free fixed slope (yx) press the free stator (yd) to move radially outward along the positioning hole (dw) toward the assembly axis (zp) And an exposed protrusion is formed to lock the assembly set (zt). 2. A grinding wheel quick change device according to claim 1, characterized in that the two sides of the free ramp (yx) are respectively provided with blocking surfaces (kz) and guide surfaces (dx). The blocking surface (kz) is a cylindrical surface, and the guide surface (dx) is an inclined surface. The blocking surface (kz) can irreversibly lock the traveling stator (yd) outwards. The slope of the guide surface (dx) Greater than the slope of the free-running slope (yx). 3. A grinding wheel quick change device according to claim 2, characterized in that a plurality of positioning holes (dw) are evenly distributed along the circumference of the central axis of the assembly shaft (zp), and each positioning hole (dw) Each is equipped with an independently sliding traveling stator (yd), the positioning hole (dw) is a cylindrical hole, and the traveling stator (yd) is spherical. 4. A grinding wheel quick change device according to claim 3, characterized in that the end of the assembly set (zt) is also provided with a stop slope (ztd), and the free stator (yd) protrudes outward. Finally, it can contact with the stop slope (ztd) and press the assembly set (zt). 5. A grinding wheel quick change device according to claim 4, characterized in that a stop sleeve (zdt) is set at the end of the assembly shaft (zp), and the stop sleeve (zdt) is The first end is also provided with a traveling stator limiting surface (ydx). The traveling stator limiting surface (ydx) is an inner conical surface and its edge covers the positioning hole (dw). 6. A grinding wheel quick change device according to claim 5, characterized in that the second end of the stop sleeve (zdt) is also provided with a free fixed shaft limiting surface (zdtx), and the free fixed shaft limit surface (zdtx) is provided. The shaft (ydd) is also provided with a limiting shoulder (yddj), and the fixed shaft limiting surface (zdtx) can abut against the limiting shoulder (yddj) to stop the fixed shaft (ydd).