TWM558149U - Grinding machine with replaceable grinding tool - Google Patents

Abstract

A grinding machine capable of replacing a grinding tool, comprising a machine tool body having a transmission head and at least one set of adapters disposed on the transmission head. The connecting head has a connecting rod which is rotatable on the driving head and has an connecting portion. The connecting portion has an accommodating space formed therein, and a first connecting portion is formed on the outside. The adapter base is connected to the connecting rod to close the accommodating space, and has a sleeve space disposed outside the connecting portion, and the socket space has a first joint portion a second set of joints that are connected to each other, and each of the adapters has a pivoting portion that is located at the same axis as the connecting rod and is connected to a grinding tool to connect differently by replacing the adapter Grinding tool.

Description

Grinding machine with replaceable grinding tools

The present invention relates to a grinding machine for replacing a grinding tool, and more particularly to a grinding machine that utilizes a replacement adapter for connecting different grinding tools.

A grinding machine for grinding or scrubbing the surface of an article, and the conventional commercially available tooling machine develops different grinding machine tools for different grinding purposes, such as surface grinding and scrubbing surfaces. Special purpose grinding machine for trimming.

The above-mentioned grinding machine tools developed according to different purposes cannot be directly used interchangeably, so that the consumer needs to purchase the grinding machine with different functions according to different uses, which causes a burden on the consumer.

Therefore, there are also hand tools for selling different grinding tools, such as the Republic of China Announcement No. M454908, which discloses a hand tool adapter structure in which the lower end edge of the adapter is formed with a screw end. The upper upper edge of the center is provided with an upper inner screw hole, and the lower inner edge of the center is provided with a lower inner screw hole, and the upper inner screw hole and the lower inner screw hole are the same center line. The adapter can be connected to a connecting rod; the connecting rod is a rod body, one end is a hexagonal column portion, and the other end is a screwing portion. Thereby, the adapter and the connecting rod can be pivotally connected to different hand tools and different specifications of the turntable, thereby achieving the advantages of convenient use and reduced cost of purchasing materials.

In the above-mentioned M454908 patent case, although the turntables of different specifications can be connected, only the turntables dedicated to the surface grinding and the washing surface can be connected, and the grinding tools such as trimming can not be connected.

For example, in the new patent application No. M530221 of the Republic of China, a hand tool adapter is disclosed, which comprises a base body and a connecting rod connecting the base body. The base body surrounds a screw hole having an opening extending along an axis, and the connecting rod is connected to one end of the base opposite to the opening and has a hexagonal column shape extending along the axis. The screw hole of the base of the hand tool adapter is connected to a workpiece having a screw, and the connecting rod in the shape of a hexagonal column can be adapted to connect to a popular electric power such as an electric/power screwdriver. / Pneumatic rotary tool, thereby providing a way in which the work with the screw can be gradually driven by the popular electric/pneumatic rotary tool, and also improves the versatility of the cooperation between the electric/pneumatic rotary tool and the work piece.

In the above-mentioned M530221 patent case, the same type of turntable can be connected to different specifications, but it is still limited to the connection of a turntable dedicated to surface grinding and a special surface for washing, and is also limited in use.

In addition, as disclosed in the Patent No. I232155 of the Republic of China, a quick-disassembling tool drive shaft and a joint are disclosed, the drive shaft partially protruding from the tool body of the gas/power tool, and the periphery of the drive shaft is extended. a coupling plane to the end surface of the free end, a radially concave groove is provided on a periphery of the transmission shaft in the range of the joint plane; the adapter includes a shaft, and two rods are radially inserted on the shaft The upper plunger, a set of elastic bodies disposed on the shaft, a cylinder covering the shaft together with the elastic body, and a buckle for restricting the shaft from coming out, the user can The work needs to replace the adapter with the tool head, that is, as long as the tool body of the same gas/power tool can be used with the adapter of different functions to achieve the multifunctional design and greatly reduce the economic burden on the user. .

However, in the above-mentioned I232155 patent, although the conversion of the tool head can be achieved by replacing the adapter, the structure of the tool transmission shaft and the adapter is quite complicated, which not only causes an increase in manufacturing cost, but also In the long-term use state, it is easy to cause material loss and shorten its service life.

Therefore, how to provide a grinding machine which is simple in structure and capable of changing the grinding tool by replacing different adapters is the problem to be solved by the creation.

The main purpose of this creation is to provide a grinding machine that can replace a grinding tool, especially a grinding machine that uses a replacement adapter for connecting different grinding tools.

To achieve the above object, the present invention provides a grinding machine capable of replacing a grinding tool, comprising a machine tool body and at least one adapter. The main body of the machine tool has a transmission head, and the transmission head has a connecting rod that is rotatable on the transmission head. The connecting rod has a connecting portion. The connecting portion has a receiving space formed therein, and the outside is formed with a first portion. Group connection. The adapter is connected to the connecting portion to close the accommodating space, the adapter has a receiving portion, and the yoke has a sleeve space disposed outside the connecting portion The socket space has a second set of joints connected to the first set of joints, and the adapter has a pivotal connection with the connecting rod and is connected to a grinding tool. unit.

In one embodiment, the first set of joints is an external thread, and the second set of joints is an internal thread that is screwed to the external thread.

In an embodiment, the connecting rod further has a first positioning portion for positioning a first tool, and the connecting portion extends outward from the first positioning portion.

In an embodiment, the adapter has a second positioning portion for positioning a second tool, and the receiving portion extends outward from the second positioning portion, and the socket space communicates with the second portion a positioning unit and the housing section.

In an embodiment, the second set of joints is located at a position relative to the second positioning portion.

In an embodiment, an outer diameter of the second positioning portion is larger than an outer diameter of the first positioning portion.

In one embodiment, the pivoting portion is further a screw protruding from the outside of the receiving portion, and the grinding tool has a screwing hole that is screwed to the screw.

In one embodiment, the pivoting portion is further an inner screw hole extending through the receiving portion and communicating with the sleeve space, and the grinding tool has an outer screw threadedly coupled to the inner screw hole.

In one embodiment, the pivoting portion is further a through hole extending through the receiving portion and communicating with the sleeve space, and a further fixture is disposed in the receiving space, and the grinding tool has a pass The through hole is interposed on the shaft of the clamp.

Through the above technical content, the present invention has the following features as compared with the prior art: 1. The grinding machine of the present invention can change different grinding tools through different pivoting portions provided on the adapters. The use of the grinding machine is more extensive. 2. The grinding machine of the present invention utilizes the first positioning portion on the connecting rod and the second positioning portion on the adapter to quickly reach the replacement transfer through the first tool and the second tool The purpose of the seat. 3. The grinding machine tool of the present invention can achieve the effect of replacing the adapter through the simple structural design of the first set of joints and the second set of joints, and the structure is simpler and the manufacturing cost can be effectively reduced.

The detailed description and technical content of this creation are described as follows:

As shown in FIG. 1 to FIG. 4 , the grinding machine tool for replacing the grinding tool comprises a machine tool body 10 and a plurality of adapters 20 respectively connectable to different grinding tools 30 for utilizing the adapter. The replacement of 20 achieves the effect of replacing the different abrasive tool 30. However, in the embodiment, the main body 10 of the machine tool 10 is mainly configured with three adapters 20, and the three adapters 20 include a first adapter 201 and a second adapter. The grinding tool 30 includes a trimming grinding tool 301, a flat grinding disc 302, and a brushing grinding disc 303. The first adapter base 201 is used for the trimming and grinding. The tool 301 is configured to connect the planar grinding disc 302 to the brushing disc 303.

The power tool main body 10 includes a transmission head 11 , and the transmission head 11 defines a connecting rod 12 rotatable on the transmission head 11 . The connecting rod 12 has a first positioning extending outside the transmission head 11 . a portion 121 and a connecting portion 122 extending outward from the first positioning portion 121. The connecting portion 122 has an accommodating space 123 therein, and the outer portion has a first connecting portion 124. In this example, the first set of joints 124 is an external thread.

The first adapter 201, the second adapter 202, and the third adapter 203 are respectively disposed on the connecting portion 122, and the first adapter 201 and the second adapter The second positioning portion 21 and the receiving portion 22 extending from the second positioning portion 21, and the first adapter 201 and the second rotation The socket 202 and the interior of the third adapter 203 have a sleeve space 23 disposed outside the connector portion 122. The socket space 23 has a connection with the first connector portion 124. The second set of joints 24, in this embodiment, the second set of joints 24 is an internal thread that is screwed to the external thread.

The first adapter base 201, the second adapter base 202, and the third adapter base 203 are respectively formed on the receiving section 22 at the same axis as the connecting rod 12, and are connected to the first adapter base 201. The pivoting portions 25-27 of the grinding tool 30, and the pivoting portions 25-27 of the first adapter 201, the second adapter 202, and the third adapter 203 are different structural designs. The pivoting portion 25 on the first adapter base 201 is a through hole extending through the receiving portion 22 and communicating with the socket space 23, and the pivoting portion 26 on the second adapter base 202 The pivoting portion 27 of the third adapter 203 is a screw protruding outward from the receiving portion 22 as an inner screw hole extending through the receiving portion 22 and communicating with the socket space 23. .

As shown in FIG. 1 and FIG. 2 , when the first adapter 201 is connected to the connecting rod 12 , the trimming tool 301 is formed with the pivoting portion 25 that can pass through the through hole. In the accommodating space 123, a jig 32 is further disposed in the accommodating space 123, and the jig 32 is disposed in the accommodating space. In the 123, when the first adapter 201 is connected to the connecting rod 12, the first adapter 201 is mutually screwed by the first connecting portion 124 and the second connecting portion 24. Effectively fixed on the connecting rod 12, and the first adapter 201 is gradually tightened during the screwing process to clamp the shaft 31 with the clamp 32, so that the trimming The grinding tool 301 rotates on the drive head 11 with the connecting rod 12.

Moreover, as shown in FIG. 1 and FIG. 3, when the second adapter 202 is connected to the connecting rod 12, the planar grinding disc 302 is connected to the planar grinding disc 302. The outer screw 33 of the inner screw hole of the inner screw hole is screwed to the second adapter 202 by the outer screw 33, and the second adapter is further The second adapter base 202 is effectively fixed on the connecting rod 12 by the mutual arrangement of the first assembly portion 124 and the second assembly portion 24, so that the grinding tool can be replaced. 30 effects.

Moreover, as shown in FIG. 1 and FIG. 4, when the third adapter 203 is connected to the connecting rod 12, the brushing and polishing disc 303 is connected, and the brushing disc 303 is formed to pass through. The screwing hole 34 of the pivoting portion of the screw is screwed to the third adapter 203 through the screwing hole 34 and the pivoting portion 27 of the screw. Then, the third adapter 203 is screwed through the first assembly portion 124 and the second assembly portion 24, so that the third adapter 203 is effectively fixed to the connecting rod 12. on.

Finally, as shown in FIG. 1 and FIG. 5, in the present creation, when the adapter 20 is to be replaced on the connecting rod 12 of the machine tool body 10, a first tool 40 and a second tool are used. 50. The adapter 20 and the connecting rod 12 are locked and disassembled for replacement of the adapter 20. The first tool 40 has a first fixing portion 41 that is engaged with the first positioning portion 121, and the second tool 50 has a second fixing portion 51 that is locked with the second positioning portion 21. . Therefore, the first tool 40 is firstly locked to the first positioning portion 121 by the first fixing portion 41, and the second tool 50 is locked to the second positioning portion by the second fixing portion 51. 21, the first tool 40 and the second tool 50 are used to detach the adapter 20 from the connecting rod 12, thereby disassembling the adapter 20 on the connecting rod 12. The effect of replacing the adapter 20 is achieved by locking, and the replacement of the abrasive tool 30 can be performed by replacement of the adapter 20. The outer diameter of the second positioning portion 21 is greater than the outer diameter of the first positioning portion 121 to prevent erroneous use between the first tool 40 and the second tool 50 through different outer diameters.

Compared with the prior art, the grinding machine of the present invention can change different grinding tools 30 through the different pivoting portions 25-27 provided on the adapters 20, so that the grinding machine can be used more. For a wide range. In addition, the grinding machine tool of the present invention can utilize the first positioning portion 121 on the connecting rod 12 and the second positioning portion 21 on the adapter seat 20 to pass the first tool 40 and the second tool. 50 quickly achieves the purpose of replacing the adapter 20. Furthermore, the grinding machine tool of the present invention can achieve the effect of replacing the adapter 20 through the simple structural design of the first set of joints 124 and the second set of joints 24, and the structure is simpler and more effective. Reduce manufacturing costs.

In the above, the author has made a detailed description of the present invention, but the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the implementation of the present invention, that is, the equivalent change of the patent application scope according to the present creation. And modifications should still be covered by the patents of this creation.

10‧‧‧Tool machine body
11‧‧‧Drive head
12‧‧‧ Connecting rod
121‧‧‧First Positioning Department
122‧‧‧ Connection Department
123‧‧‧ accommodating space
124‧‧‧The first set of joints
20‧‧‧Adapter
201‧‧‧First adapter
202‧‧‧Second adapter
203‧‧‧ third adapter
21‧‧‧Second Positioning Department
22‧‧‧ Included section
23‧‧‧ Socket space
24‧‧‧Second group of joints
25~27‧‧‧ pivotal department
30‧‧‧ grinding tools
301‧‧‧Edge grinding tool
302‧‧‧ flat grinding disc
303‧‧‧Washing abrasive disc
31‧‧‧ shaft
32‧‧‧Clamp
33‧‧‧External screw
34‧‧‧ screw holes
40‧‧‧ first tool
41‧‧‧First Fixed Department
50‧‧‧second tool
51‧‧‧Second fixed department

Figure 1 is a schematic plan view of the creation. 2 is an exploded perspective view of the first adapter and the first grinding tool of the present invention. FIG. 3 is an exploded perspective view of the second adapter and the second grinding tool of the present invention. 4 is an exploded perspective view of the third adapter and the third grinding tool of the present invention. FIG. 5 is an exploded perspective view of the first tool and the second tool.

Claims (9)

A grinding machine capable of replacing a grinding tool, comprising: a machine tool main body having a driving head, the driving head extending a connecting rod rotatable on the driving head, the connecting rod having a connecting portion, the connecting portion An accommodating space is formed in the inner portion, and a first connecting portion is formed on the outer portion; and at least one yoke is disposed at the connecting portion to close the accommodating space, and the accommodating seat has a receiving portion. The socket has a sleeve space disposed outside the connector portion, and the socket space has a second group connected to the first group, and the adapter is The utility model has a pivoting portion which is located at the same axis as the connecting rod and is used for connecting an abrasive tool. The grinding machine tool of claim 1, wherein the first set of joints is an external thread, and the second set of joints is an internal thread that is screwed to the external thread. The grinding machine tool of claim 1, wherein the connecting rod further has a first positioning portion for positioning a first tool, and the connecting portion extends outward from the first positioning portion. . The grinding machine tool of claim 3, wherein the adapter has a second positioning portion for positioning a second tool, and the receiving portion is outwardly from the second positioning portion. Extending, the socket space is connected to the second positioning portion and the receiving portion. A grinding machine capable of replacing an abrasive tool according to claim 4, wherein the second set of joints is located at a position opposite to the second positioning portion. The grinding machine tool of claim 5, wherein an outer diameter of the second positioning portion is larger than an outer diameter of the first positioning portion. The grinding machine tool of claim 1, wherein the pivoting portion is further a screw protruding from the outside of the receiving portion, and the grinding tool has a screw joint with the screw. Screw holes. The grinding machine tool of claim 1, wherein the pivoting portion is further an inner screw hole extending through the receiving portion and communicating with the sleeve space, and the grinding tool has a The outer screw threaded by the inner screw holes. The grinding machine tool of claim 1, wherein the pivoting portion is further a through hole extending through the receiving portion and communicating with the sleeve space, and the receiving space is further provided with a through hole. a jig, and the grinding tool has a shaft that is clamped to the jig through the through hole.