TWM584235U - Grinder connecting device and grinder having the same - Google Patents

Abstract

The present invention relates to a grinding machine connecting device and a grinding machine with a grinding machine connecting device. The grinding machine connecting device comprises a housing, a base connecting ring, a first connecting ring and a first elastic member. The base connecting ring is accommodated in the housing. The base ring convex post is formed on the base base and protrudes toward a connection hole of the shell; the first connection ring is slidably sleeved on the base ring convex post, And includes a first base and a first ring convex post, the first elastic member is located between the first base and the base base, and pushes the first base toward the housing, and the first ring convex post is selectively protruding Outside the connection hole, this creation has two types of ring convex posts, which can be matched according to different sizes of grinding wheels, saving the user's cost on equipment.

Description

Grinding wheel connecting device and grinder having same

This creation is a grinding tool, especially a grinder and its connecting device.

Grinding machine is a kind of processing machine used to grind objects, cut hard materials, or polish the surface of objects to be processed or the appearance of special materials. To be more precise, please refer to FIG. 12 and FIG. The machine includes a grinder body 91, a sleeve 92, and a grinder blade 93. The grinder blade 93 is a replaceable consumable material. After being mounted on the grinder body 91 through the sleeve 92, a fixing member 94 is provided. The grinding wheel piece 93 is sandwiched by the sleeve 92 and the fixing member 94 on the outside of the grinding wheel piece 93. The grinding machine body 91 can drive the grinding wheel piece 93 to rotate. At high speed, the abrasive particles bonded to the periphery of the grinding wheel piece 93 can be used. Grind or cut objects.

Among them, for different kinds or sizes of objects, the size of the grinding wheel discs 93 also needs to be adjusted. Among the different grinding wheel discs 93, the biggest difference is the connection hole in the center of each grinding wheel disc 93. This connection hole is used to enable the grinding wheel piece 93 to be sleeved on the sleeve 92 and further installed on the grinding machine body 91. For different sizes of the grinding wheel piece 93, the hole size of the connection hole will also be different due to different reasons. The size of the grinding wheel piece 93 will have different degrees of stress distribution during use, and the adjustment of the connection hole according to the different size of the grinding wheel piece 93 can effectively reduce unnecessary shaking or uneven stress distribution of the grinding wheel piece 93 during use. The problem.

Therefore, when the user wants to replace the grinding wheel plate 93 on the grinding machine body 91, in addition to replacing the grinding wheel plate 93 itself, the sleeve 92 sleeved on the grinding machine body 93 is also replaced at the same time, as shown in FIG. 12 As shown in FIG. 13, since each sleeve 92 is designed to be used with a different size of the grinding wheel piece 93, a protrusion 95 protruding from the sleeve 92 can be used to fit a specific size of the grinding wheel piece 93 to make the grinding piece. 93 can be fixed on the sleeve 92 firmly.

However, in the prior art grinding machine, in order to correspond to different sizes of the grinding wheel blades 93, the user must prepare sleeves 92 of different sizes, and there is no product that can use a sleeve 92 to cooperate with multiple sizes of the grinding wheel blades 93. Therefore, the prior art grinder has its shortcomings.

In view of the shortcomings and deficiencies of the prior art, the present invention provides a grinding machine connection device and a grinding machine with a grinding machine connection device, which reduce the user's cost of equipment procurement through sleeves that can correspond to different size grinding wheel blades. .

In order to achieve the above-mentioned creation purpose, the technical means adopted in this creation is a grinding machine connection device, which includes a shell, the opposite two sides of which are an outer side and an inner side, respectively, and the shell has a receiving groove. It is concavely formed on the shell from the inner side of the shell toward the outer side of the shell, and has a bottom surface and an annular wall surface;
A connecting hole formed on the bottom surface of the accommodating slot and penetrating to the outer side surface of the casing;
A base connecting ring connected to the shell, the base connecting ring including a base base connected to the shell;
A base ring convex post, which is formed on one side of the base base, is located in the accommodation groove, and protrudes out of the connection hole;
A through hole formed through the base ring convex post and penetrating the other side of the base base;
A first connecting ring is slidably sleeved on the base ring convex post of the base connecting ring and is located in the accommodation slot. The first connecting ring includes a first base sleeved on the base ring. The base ring is convex outside the column and is located between the base base and the bottom surface of the accommodation groove, and selectively abuts against the bottom surface of the accommodation groove;
A first annular convex pillar is protruded and formed on a side surface of the first base away from the base base, and is sleeved outside the base annular convex pillar. Outside the connection hole
A first elastic member is located between the base base and the first base, and pushes against the first base toward the bottom surface of the accommodation groove.

In order to achieve the above-mentioned creation purpose, the technical means adopted in this creation is a grinding machine connection device, which includes a shell, the opposite two sides of which are an outer side and an inner side, respectively, and the shell has a receiving groove. It is concavely formed on the shell from the inner side of the shell toward the outer side of the shell, and has a bottom surface and an annular wall surface;
A connecting hole formed on the bottom surface of the accommodating slot and penetrating to the outer side surface of the casing;
A base connecting ring connected to the shell, the base connecting ring including a base base detachably connected to the shell;
A base ring convex post, which is formed on one side of the base base, is located in the accommodation groove, and protrudes out of the connection hole;
A through hole formed through the base ring convex post and penetrating to the other side of the base base;
A first connecting ring is slidably sleeved on the base ring convex post of the base connecting ring and is located in the accommodation slot. The first connecting ring includes a first base sleeved on the base ring. The base ring convex post is outside the base base and the bottom surface of the receiving groove;
A first annular convex pillar is protruded and formed on a side surface of the first base away from the base base, and is sleeved outside the base annular convex pillar, and the first annular convex pillar is selectively protruded and formed on the Outside the connection hole
A first elastic member, located between the base base and the first base, and pushing against the first base toward the bottom surface of the accommodation slot;
A second connection ring is slidably sleeved on the first ring convex post of the first connection ring and is located in the accommodation slot. The second connection ring includes a second base, which is sleeved. Outside the first annular convex post, located between the first base and the bottom surface of the accommodation groove, and selectively abutting against the bottom surface of the accommodation groove;
A second annular convex pillar is protruded and formed on a side surface of the second base far from the first base, and is sleeved outside the first annular convex pillar, and the second annular convex pillar selectively protrudes. Formed outside the connecting hole;
A second elastic member is located between the first base and the second base, and pushes against the second base toward the bottom surface of the receiving groove.

In order to achieve the above-mentioned creation purpose, the technical means adopted in this creation is a grinding machine with a grinding machine connection device, which can be used to install a grinding wheel piece, and the grinding machine with a grinding machine connection device includes:
A grinder, which is connected to the grinder connection device and includes a grinder body;
A drive shaft is arranged on the grinder body, and the drive shaft can be driven to rotate by the grinder body;
A grinder connection device as described above, the grinder connection device is sleeved on the drive shaft through the through hole, and the grinder connection device is detachably sleeved on the drive shaft;
A fixing member is detachably disposed on the driving shaft of the grinding machine, and the grinding machine connection device is fixed between the driving shaft and the fixing member.

The advantage of this creation is that the outer diameter of the base annular convex column and the outer diameter of the first annular convex column can respectively match the diameters of the grinding wheel blades of different sizes. In other words, when the user wants to install a grinding wheel blade with a larger diameter, It can be sleeved outside the first ring convex post of the first connection ring, and when the user wants to install a grinding wheel with a small aperture, it can be set outside the base ring convex post of the base connection ring, which can be pressed against At the first ring convex post, the first connecting ring gradually compresses the first elastic member, and the protruding end of the first connecting ring is approached toward the base connecting ring because of the pressure, and then it is gradually compressed, so the outer diameter The smaller outer diameter of the base connection ring can be used to fit the hole diameter of the grinding wheel piece. In other words, through the design of this creation, the user can use the same sleeve to match different size grinding wheel pieces, thereby saving the user in Cost of equipment.

Further, in the above-mentioned grinding machine connection device, one end surface of the base ring protruding column protruding from the connection hole is a base protruding surface; the first ring protruding column protruding from one end surface of the connecting hole is a first protrusion The first elastic member selectively abuts the first base of the first connection ring against the bottom surface of the accommodation groove, and when the first base abuts against the bottom surface of the accommodation groove , The first protruding surface of the first annular convex column is tangent to the base protruding surface of the base annular convex column, or the distance between the first protruding surface of the first annular convex column and the base base is greater than The distance between the base protruding surface of the base ring convex pillar and the base base.

Further, the above-mentioned grinding machine connection device further includes a second connection ring slidably sleeved on the first ring convex post of the first connection ring and located in the accommodation slot. The second connecting ring includes a second base, which is sleeved outside the first ring convex post, is located between the first base and the bottom surface of the receiving slot, and selectively abuts against the container. The bottom surface of the groove; a second ring convex post protrudingly formed on the side surface of the second base away from the first base, and sleeved outside the first ring convex post, and the second ring A convex pillar is selectively protruded and formed outside the connecting hole; a second elastic member is located between the first base and the second base, and pushes against the second base toward the bottom surface of the receiving groove. seat.

Further, in the aforementioned grinding machine connection device, a receiving groove thread portion is formed on the ring wall surface of the receiving groove; a connecting ring thread portion is formed on the base base of the base connecting ring, and the base connecting ring penetrates The connecting ring screw portion is detachably screwed with the receiving slot screw portion of the receiving slot.

Further, in the foregoing grinding machine connection device, the first elastic member is a reed.

Further, in the above-mentioned grinder with a grinder connection device, the fixing member includes a fixing plate, and an inner side of the fixing plate is used to sandwich a grind wheel piece with the grinder connection device; a connection protrusion A column is formed on an outer surface of the fixing plate; two rotary grips are respectively pivoted on the side wall surface of the connecting protrusion and correspond to each other. Each of the rotary grips has an unfolded state and a In the collapsed state, in the unfolded state, each of the rotary grips is pivoted relative to the connection protrusion to be perpendicular to the outer side of the fixed plate, and in the collapsed state, each of the rotary grips is relative to the connection protrusion. The post is pivoted until it fits with the outer side of the fixing plate.

Further, in the above-mentioned grinder with a grinder connection device, in the fixing member, the connecting protrusion is provided with two locking parts; the two rotating grips are respectively provided with a fastener, and the two rotating grips The two card fasteners are separately detachably fixed to the two fixing portions.

Further, in the above-mentioned grinder with a grinder connection device, each of the fixing portions is a groove; each of the fixing members is a tightening bolt, and the fixing members are relatively movable and arranged on the corresponding rotation. On the handle, and the card fastener selectively abuts against the corresponding card fixing portion.

In the following, with reference to the drawings and the preferred embodiment of this creation, the technical means adopted by this creation to achieve the intended purpose is further explained.

Please refer to FIG. 1. The grinding machine with the grinding machine connection device of the present invention can be used to set a grinding wheel piece 93 and includes a grinding machine connection device 10 and a grinding machine 20. The grinding machine connection device 10 is detachable and can be used. It is installed on the grinder 20 so as to rotate relatively.

Please refer to FIG. 2 and FIG. 3 further, the grinding machine connecting device 10 includes a housing 11, a base connecting ring 12, a first connecting ring 13 and a first elastic member 14. The two opposite sides of the housing 11 are respectively The outer side surface 111 and an inner side surface 112 are further provided with an accommodating groove 113 and a connecting hole 114 on the housing 11. The accommodating groove 113 is concavely formed on the housing 11 from the inner side surface 112 of the housing 11 toward the outer side surface 111. The receiving groove 113 has a bottom surface 115 and an annular wall surface 116 therein; the connecting hole 114 is formed on the bottom surface 115 in the receiving groove 113 and penetrates the outer side 111 of the casing 11 so that the casing 11 forms a ring shape, but the casing The shape of 11 is not limited to a ring shape.

Please refer to FIG. 2, FIG. 3 and FIG. 4. The base connecting ring 12 is disposed in the accommodating groove 113. In this embodiment, the housing 11 and the base connecting ring 12 are two independent components. The housing 11 and the base connecting ring 12 may be integrally formed as a single component. The base connecting ring 12 includes a base base 121, a base ring convex post 122, A through hole 123, more precisely, a receiving groove threaded portion 117 is formed on the ring wall surface 116 of the receiving groove 113, and a connecting ring threaded portion 124 and a base connecting ring 12 are formed on the base base 121 of the base connecting ring 12. The connection ring threaded portion 124 is screwed with the receiving groove threaded portion 117 of the receiving groove 113 to detachably connect the base connection ring 12 to the housing 11, but the connection manner between the base connection ring 12 and the housing 11 is different. Limited to the above.

The base base 121 is detachably connected to the housing 11, more precisely, it is detachably connected through the above-mentioned screwing means, but it is not limited thereto; the base ring convex post 122 is formed on the base base 121 The side of the base ring protrudes beyond the connection hole 114 of the housing 11, in other words, the base ring convex post 122 is formed on the side of the base base 121 facing the bottom surface 115 of the accommodation groove 113, and the base ring convex post 122 protrudes from the connection hole. One end surface of 114 is a base protruding surface 125.

The through hole 123 is formed on the base ring convex post 122 and penetrates to the other side of the base base 121, so that the base connection ring 12 forms a shape that can be sleeved on other elements.

Please refer to FIG. 3, FIG. 4 and FIG. 5, the first connection ring 13 is slidably sleeved on the base ring protrusion 122 of the base connection ring 12 and is located in the accommodation groove 113. In other words, the first connection ring 13 is disposed between the housing 11 and the base connecting ring 12.

The structure of the first connection ring 13 is similar to that of the base connection ring 12, and the first connection ring 13 is a structure that can be sleeved on the base connection ring 12 according to the needs of the user. The first connection ring 13 includes a first base 131 and a first The annular convex pillar 132 and the first base 131 are sleeved outside the base annular convex pillar 122 and are located between the base base 121 and the bottom surface 115 of the receiving groove 113.

The first annular convex pillar 132 is protruded and formed on a side of the first base 131 away from the base base 121, and is sleeved outside the base annular convex pillar 122. The first annular convex pillar 132 is selectively protruded and formed outside the connecting hole 114. To be more precise, one end surface of the first annular convex pillar 132 protruding from the connection hole 114 is a first protruding surface 133.

Please refer to FIG. 3 and FIG. 5, the first elastic member 14 is located between the base base 121 and the first base 131 and pushes against the first base 131 toward the bottom surface 115 of the receiving groove 113. More precisely, In the first embodiment, the first elastic member 14 can push the first base 131 of the first connection ring 13 to abut against the bottom surface 115 of the receiving groove 113, and when the first base 131 abuts against When the bottom surface 115 of the receiving groove 113 is received, the distance between the first annular convex pillar 132 protruding from the connection hole 114 is the largest. In the first embodiment, the first protruding surface 133 of the first annular convex pillar 132 and the base base 121 Is greater than or equal to the distance between the base protruding surface 125 of the base ring pillar 122 and the base base 121, and when the distance between the first protruding surface 133 and the base base 121 is equal to the distance between the base protruding surface 125 and the base base 121 When the distance is equal to 1, the first protruding surface 133 is tangent to the base protruding surface 125.

More precisely, in the first embodiment, after the first base 131 is pushed to the extreme end toward the bottom surface 115 of the accommodation groove 113, the first ring-shaped convex pillar 132 protrudes from the connection hole along its axial direction. The length of 114 is greater than or equal to the length of the base ring convex post 122 protruding from the connection hole 114 along its axial direction.

In the first embodiment, the first elastic member 14 is a reed, and is sleeved on the base ring convex post 122, and it selectively pushes the first base 131 in a direction away from the base base 121. The structure of an elastic member 14 is not limited to a reed.

Please refer to FIG. 1, FIG. 2 and FIG. 7. The grinder 20 includes a grinder body 21, a drive shaft 22 and a fixing member 23. The drive shaft 22 is disposed on the grinder body 21 and can be received by the grinder. The body 21 is driven to rotate, and the above-mentioned grinding machine connecting device 10 is sleeved on the driving shaft 22 through the through hole 123, so that the grinding machine connecting device 10 is detachably sleeved on the driving shaft 22, and the fixing member 23 may also be It is detachably disposed on the drive shaft 22 of the grinder 20, so that the grinder connection device 10 is sleeved on the drive shaft 22 and sandwiched between the grinder body 21 and the fixing member 23.

Please refer to FIG. 7 and FIG. 8. More specifically, the fixing member 23 includes a fixing plate 231, a connecting post 232, and two rotary grips 233. An inner side of the fixing plate 231 is used to connect with the grinding machine. 10, a grinding wheel piece 93 is sandwiched together, and the connecting protrusion 232 is formed on an outer side of the fixing plate 231. The two rotating grips 233 are respectively pivoted on the side wall surface of the connecting protrusion 232, and are positioned opposite each other. correspond.

More precisely, the two rotary grips 233 are arranged symmetrically and side by side with the center line connecting the protruding post 232, as shown in FIG. 8, and each of the rotary grips 233 has an unfolded state and a collapsed state (respectively, such as 2 and 7), in the unfolded state, each of the rotary grips 233 is pivoted relative to the connecting protrusion 232 to be perpendicular to the outer side of the fixed plate 231, and in the folded state, the rotary grip 233 is relatively connected to the protrusion The post 232 is pivoted until it fits on the outer side of the fixing plate 231.

Please refer to FIG. 7 and FIG. 8. In addition, in the first embodiment, the connecting protrusion 232 of the fixing member 23 is further provided with two fixing portions 234, and each of the rotating grips 233 is provided with a fixing member 235. The two fixing members 235 of the two rotating grips 233 are detachably fixed to the two fixing portions 234. In the first embodiment, each of the fixing portions 234 is a groove, and each of the cards The fixing member 235 is a tightening bolt, and the fixing member is relatively movably disposed on the corresponding rotating grip 233, and it selectively abuts on the corresponding fixing portion.

However, the structure of the fixing portion 234 and the fixing member 235 is not limited to the groove and the tightening bolt, and it only needs to be capable of detachably fixing one end of the rotary grip 233 and the connection protrusion 232.

Please refer to FIG. 9, FIG. 10, and FIG. 11. The following is a second embodiment of the present creation. This second embodiment is substantially the same as the first embodiment, but in this second embodiment, the first connection ring 13A A second connection ring 15A and a second elastic member 16A are further provided between the bottom surface 115A of the accommodation groove 113A, and the second connection ring 15A is a first ring convex post slidably sleeved on the first connection ring 13A. 132A, and is also located in the receiving groove 113A.

The structure of the second connection ring 15A is substantially the same as that of the first connection ring 13A, and includes a second base 151A and a second ring convex post 152A. The second base 151A is sleeved outside the first ring convex post 132A, and It is located between the first base 131A and the bottom surface 115A of the receiving groove 113A, and selectively abuts the bottom surface 115A of the receiving groove 113A. The second ring protrusion 152A protrudes from the second base 151A away from the first base. One side of the seat 131A is sleeved outside the first annular convex post 132A, and the second annular convex post 152A selectively protrudes out of the connecting hole 114A, and the second annular convex post 152A protrudes from an end face outside the connecting hole 114A. It is a second protruding surface (not shown).

The second elastic member 16A is disposed between the first base 131A and the second base 151A, and pushes against the second base 151A toward the bottom surface 115A of the accommodation groove 113A. In other words, in this second embodiment, because A second base 151A is further provided between the first base 131A and the bottom surface 115A of the accommodation groove 113A. Therefore, even if the first base 131A is pushed, it will not be in contact with the bottom surface 115A of the accommodation groove 113A. After being pushed by the second elastic member 16A, the second base 151A will abut against the bottom surface 115A of the receiving groove 113A.

In addition, in this second embodiment, as in the first embodiment of the present invention, when the second connection ring 15A is pushed by the elastic force and the second base 151A abuts against the bottom surface 115A of the accommodation groove 113A, the second ring The length of the protruding post 152A protruding from the connecting hole 114A along its axial direction will be greater than or equal to the length of the base ring protruding post 122A protruding from the connecting hole 114A. More precisely, when the second base 151A of the second connecting ring 15A abuts When reaching the bottom surface 115A of the receiving groove 113A, the distance between the second protruding surface and the base base is greater than the distance between the base protruding surface and the base base, and the distance between the first protruding surface and the base base is also greater than the base protruding surface. The distance from the base.

On the other hand, in the second embodiment, the elasticity between the first elastic member 14A and the second elastic member 16A can be adjusted according to the needs of the user, so that the elasticity between each other can be matched with each other. For example, it can be designed. When the second elastic member 16A is pushed against, its elastic force is not enough to push the first elastic member 14A to be compressed. Therefore, when the second connection ring 15A moves toward the base connection ring 12A, the first connection ring 13A will not Moved by the second elastic member 16A.

This second embodiment is just one of a plurality of possibilities for assembly in this creation. In other embodiments, users can adjust the axial and radial lengths of the housing and other components to accommodate more connections. The purpose of the ring, in other words, the number of connection rings provided between the housing and the base connection ring is not limited to one or two.

The following are examples of the use of this creation and its advantages, and are explained on the basis of the first embodiment of this creation.

In the first embodiment, since the base connecting ring 12 and the first connecting ring 13 are provided, it can be used for installation of two different-sized grinding wheel blades 93, as shown in FIGS. 4 and 6, more precisely, When the size of the grinding wheel piece 93 is large, as shown in FIG. 4, it can be sleeved on the peripheral edge of the first ring convex pillar 132 and is sandwiched by the grinding machine connection device 10 and the fixing member 23.

Further, please refer to FIG. 3, FIG. 5 and FIG. 6 first. When the size of the grinding disc 93 is small, after the user places the grinding disc 93 on the grinding machine connection device, the hole diameter of the grinding disc 93 will be Cooperate with the peripheral edge of the base ring convex post 122, and as the user gradually locks the fixing member 23 on the driving shaft, the grinding wheel piece 93 will gradually press the first ring convex post 132, so that the first connection ring 13 gradually faces The base connecting ring 12 is close, so that a class gradually appears between the base ring convex pillar 122 and the first ring convex pillar 132, so that the smaller-sized grinding wheel piece 93 can be sleeved on the periphery of the base ring convex pillar 122.

Further, please refer to FIG. 9, FIG. 10, and FIG. 11, and when the accommodation groove 113A has more than two connection rings, such as the first connection ring 13A and the second connection ring 15A of the second embodiment, Three different sizes of grinding wheels 93 are set in the way of this creation as follows.

The largest size grinding wheel 93 can be sleeved on the second ring convex post 152A of the second connection ring 15A, and can be used directly after being set, as shown in Figure 9; for the medium size grinding wheel 93, please refer to As shown in FIG. 10, after it is placed on this work, when the fixing member 23A is gradually locked, the grinding wheel piece 93 will gradually press against the second ring convex column 152A, so that the first ring convex column 132A and the second ring convex column A first-level surface is formed between 152A, so the grinding wheel piece 93 can be sleeved on the first ring convex pillar 132A; please refer to FIG. 11, the smallest-sized grinding wheel piece 93 is installed and compressed to push the first piece together. A connecting ring 13A and a second connecting ring 15A cause the first connecting ring 13A and the second connecting ring 15A to be pushed toward the base base 12A together, so that the grinding wheel piece 93 can be sleeved on the base ring convex post 122A.

In addition, in this second embodiment, although the first elastic member 14A and the second elastic member 16A are compressed in stages in FIGS. 9, 10, and 11, for example, after the first elastic member 14A is compressed, the second elastic member is compressed. 16A is compressed in the next step, but this compression change is only a schematic change. It does not have to be the same as the sequence in the figure. It can also be designed that the two elastic members 14A and 16A produce compression at the same time. Variety.

Through the above-mentioned switching mechanism, the grinder 20 equipped with the grinder connection device 10 can be applied to two different size grind discs 93 without changing the connection device. Therefore, when the grinder connection device 10 When there are more connecting rings inside, the grinding machine connection device 10 can correspond to the larger number of grinding wheel pieces according to the quantity provided, for example, when three connecting rings are provided between the base connecting ring 12 and the housing 11, It is a first connection ring, a second connection ring, and a third connection ring (not shown) in this order. A first connection ring is sleeved on the base connection ring 12 and a second connection ring is sleeved on the structure. On the first connection ring, the third connection ring is sleeved on the second connection ring, and in this embodiment, four kinds of grinding wheel pieces of different sizes can be set, and the smallest size of the grinding wheel pieces is set on the base. The base ring of the connecting ring protrudes around the periphery of the column, and as the size of the grinding wheel piece becomes larger, it can be set one by one on the periphery of the first connecting ring, the second connecting ring and the third connecting ring.

In addition, please refer to FIG. 7. The fixing member 23 in this embodiment can also achieve the following advantages through its structure. First, the provision of two rotating grips 233 can improve the user's performance when rotating the fixing member 23. Convenience. Second, since the two rotating grips 233 are arranged along the symmetrical sides of the connecting post 232, the user's force can be more stable when the fixing member 23 is rotated to lock it on the driving shaft 22. The ground is transmitted to the fixing member. Third, the fixing portion 234 and the fixing member 235 on the fixing member allow the rotary grip 233 to temporarily fit on the periphery of the connecting protrusion 232. When this creation is in use, the drive shaft 22 Under high-speed rotation, the rotary grip 233 will not be arbitrarily pivoted due to the turning force, causing unnecessary vibration and errors.

In summary, the grinding machine connection device and the grinding machine with the grinding machine connection device of the present invention can effectively reduce the installation cost of the grinding machine during use, and can also save the time of replacing the device, so it can effectively improve the use of the grinding machine. s efficiency.

The above description is only the preferred embodiment of the creation, and does not limit the creation in any form. Although the creation has been disclosed as above with the preferred embodiment, it is not intended to limit the creation. Generally, a knowledgeable person, without departing from the scope of this creative technical solution, can use the disclosed technical content to make a few changes or modifications as an equivalent embodiment of equivalent changes. Anyone who does not depart from the content of this creative technical solution, based on Any simple modifications, equivalent changes, and modifications made to the above embodiments by the technical essence of this creation still fall within the scope of this creative technical solution.

10‧‧‧ Grinding wheel connection device

11‧‧‧ shell

111‧‧‧ outside

112‧‧‧ inside

113‧‧‧Receiving trough

114‧‧‧Connecting holes

115‧‧‧ underside

116‧‧‧ ring wall surface

117‧‧‧Receiving groove thread

12‧‧‧ base connection ring

121‧‧‧ base

122‧‧‧ base ring convex post

123‧‧‧through hole

124‧‧‧Connection ring thread

125‧‧‧ base protruding surface

13‧‧‧First connecting ring

131‧‧‧First base

132‧‧‧The first ring convex post

133‧‧‧ the first protruding surface

14‧‧‧The first elastic member

20‧‧‧ Grinding machine

21‧‧‧Grinding machine body

22‧‧‧Drive shaft

23‧‧‧Fixed parts

231‧‧‧Fixing plate

232‧‧‧Connect to the stud

233‧‧‧Rotary Grip

234‧‧‧Locking Department

235‧‧‧Card Firmware

91‧‧‧Grinding machine body

92‧‧‧ sleeve

93‧‧‧Grinding wheel

94‧‧‧Fixed parts

95‧‧‧ Stud

113A‧‧‧Receiving slot

114A‧‧‧Connecting hole

115A‧‧‧ Underside

12A‧‧‧Base connection ring

122A‧‧‧ base ring convex post

13A‧‧‧First connecting ring

131A‧‧‧First base

132A‧‧‧The first ring convex post

14A‧‧‧First elastic member

15A‧‧‧Second connection ring

151A‧‧‧Second Base

152A‧‧‧Second ring convex post

16A‧‧‧Second elastic member

23A‧‧‧Fixed parts

Figure 1 is a side view of a grinder with a grinder connection device and a grinder blade.
FIG. 2 is an exploded view of some components of FIG. 1.
Figure 3 is an exploded view of the components of the grinding machine connection device of the present invention.
Fig. 4 is a schematic cross-sectional view of a first connecting ring provided with a grinding wheel piece in the present invention.
FIG. 5 is a schematic cross-sectional view of a base connecting ring provided with a grinding wheel piece in the present invention.
FIG. 6 is a continuous operation diagram of FIG. 5.
FIG. 7 is a three-dimensional appearance view of the fixed part of the creation.
Figure 8 is a cross-sectional view of the fixed part of the present creation.
FIG. 9 is a schematic cross-sectional view of a first aspect equipped with a grinding wheel piece according to the second embodiment of the present invention.
FIG. 10 is a schematic cross-sectional view of a second aspect equipped with a grinding wheel piece according to the second embodiment of the present invention.
FIG. 11 is a schematic cross-sectional view of a third aspect provided with a grinding wheel piece according to the second embodiment of the present invention.
Fig. 12 is a schematic sectional view of a prior art grinder.
FIG. 13 is another schematic cross-sectional view of a prior art grinder.

Claims (8)

A connecting device for a grinder includes a casing, the two opposite sides of which are an outer side and an inner side, respectively, and the shell has a receiving groove, which faces from the inner side of the shell to the outer side of the shell. It is concavely formed on the shell and has a bottom surface and a ring wall surface;
A connecting hole formed on the bottom surface of the accommodating slot and penetrating to the outer side surface of the casing;
A base connecting ring connected to the shell, the base connecting ring including a base base connected to the shell;
A base ring convex post, which is formed on one side of the base base, is located in the accommodation groove, and protrudes out of the connection hole;
A through hole formed through the base ring convex post and penetrating to the other side of the base base;
A first connecting ring is slidably sleeved on the base ring convex post of the base connecting ring and is located in the accommodation slot. The first connecting ring includes a first base sleeved on the base ring. The base ring is convex outside the column and is located between the base base and the bottom surface of the accommodation groove, and selectively abuts against the bottom surface of the accommodation groove;
A first annular convex pillar is protruded and formed on a side surface of the first base away from the base base, and is sleeved outside the base annular convex pillar, and the first annular convex pillar is selectively protruded and formed on the Outside the connection hole
A first elastic member is located between the base base and the first base, and pushes against the first base toward the bottom surface of the accommodation groove. A connecting device for a grinder includes a casing, the two opposite sides of which are an outer side and an inner side, respectively, and the shell has a receiving groove, which faces from the inner side of the shell to the outer side of the shell. It is concavely formed on the shell and has a bottom surface and a ring wall surface;
A connecting hole formed on the bottom surface of the accommodating slot and penetrating to the outer side surface of the casing;
A base connecting ring connected to the shell, the base connecting ring including a base base connected to the shell;
A base ring convex post, which is formed on one side of the base base, is located in the accommodation groove, and protrudes out of the connection hole;
A through hole formed through the base ring convex post and penetrating to the other side of the base base;
A first connecting ring is slidably sleeved on the base ring convex post of the base connecting ring and is located in the accommodation slot. The first connecting ring includes a first base sleeved on the base ring. The base ring convex post is outside the base base and the bottom surface of the receiving groove;
A first annular convex pillar is protruded and formed on a side surface of the first base away from the base base, and is sleeved outside the base annular convex pillar, and the first annular convex pillar is selectively protruded and formed on the Outside the connection hole
A first elastic member, located between the base base and the first base, and pushing against the first base toward the bottom surface of the accommodation slot;
A second connection ring is slidably sleeved on the first ring convex post of the first connection ring and is located in the accommodation slot. The second connection ring includes a second base, which is sleeved. Outside the first annular convex post, located between the first base and the bottom surface of the accommodation groove, and selectively abutting against the bottom surface of the accommodation groove;
A second annular convex pillar is protruded and formed on a side surface of the second base far from the first base, and is sleeved outside the first annular convex pillar, and the second annular convex pillar selectively protrudes Formed outside the connecting hole;
A second elastic member is located between the first base and the second base, and pushes against the second base toward the bottom surface of the receiving groove. The grinding machine connecting device according to claim 1 or 2, wherein a receiving groove thread portion is formed on the annular wall surface of the receiving groove;
A connecting ring thread portion is formed on the base base of the base connecting ring, and the base connecting ring is detachably screwed with the receiving groove thread portion of the receiving groove through the connecting ring thread portion. The grinding machine connection device according to claim 1 or 2, wherein the first elastic member is a reed. A grinding machine with a grinding machine connection device can be used to install a grinding wheel piece, and the grinding machine with a grinding machine connection device comprises:
A grinder, which is connected to the grinder connection device and includes a grinder body;
A drive shaft is arranged on the grinder body, and the drive shaft can be driven to rotate by the grinder body;
As in the grinder connection device according to any one of claims 1 to 4, the grinder connection device is sleeved on the drive shaft through the through hole, and the grinder connection device is detachably sleeved on the drive shaft. On the drive shaft
A fixing member is detachably disposed on the driving shaft of the grinding machine, and the grinding machine connection device is fixed between the driving shaft and the fixing member. A grinder having a grinder connection device according to claim 5, wherein:
The fixing member includes a fixing plate, and an inner side surface of the fixing plate is used for clamping a grinding wheel piece together with the grinding machine connection device;
A connecting protrusion, which is formed on an outer surface of the fixing plate;
Two rotary grips are respectively pivoted on the side wall surface of the connecting protrusion and correspond to each other. Each of the rotary grips has an unfolded state and a collapsed state. In the unfolded state, each of the rotary grips The opposite of the connecting protrusion is pivoted to be perpendicular to the outer side of the fixing plate, and in the collapsed state, each of the rotary grips is relatively pivoted to the connecting protrusion to be attached to the outer side of the fixing plate Together. The grinder having a grinder connection device according to claim 6, wherein in the fixing member,
The connecting protrusion is provided with two clamping parts;
Each of the two rotary grips is provided with a card fastener, and the two card fixtures of the two rotary grips are separately detachably fixed on the two fixing parts. The grinder having a grinder connection device according to claim 7, wherein each of the fixing portions is a groove;
Each of the card fasteners is a tightening bolt, and the card fasteners are relatively movably disposed on the corresponding rotary grips, and the card fasteners selectively abut against the corresponding card fixing portions.