Internal air blowing mechanism of grinding machine, chip collecting device of grinding machine and grinding machine

Abstract

The application discloses a grinding machine internal blowing mechanism, a grinding machine chip collecting device and a grinding machine. The grinding machine internal blowing mechanism comprises a motor, a transmission mechanism connected with the motor and a grinding tool arranged in the transmission mechanism. The transmission mechanism comprises a transmission shell. The transmission shell internally comprises a driving wheel and a driven wheel which are rotationally connected. A tool mounting hole penetrates the central part of the driven wheel. The grinding tool is fixed in the tool mounting hole and the top surface of the grinding tool is higher than the tool mounting hole. Grinding tool cavities are concavely arranged on the upper and lower sides of the grinding tool. A blowing hole is formed in the side wall of the transmission shell and extends above the driven wheel. At least one gas guide groove is formed in the inner wall of the tool mounting hole. At least one air inlet hole is formed in the side wall of the grinding tool. The gas guide groove corresponds to the air inlet hole. The air inlet hole is in communication with the grinding tool cavity. The airflow enters the grinding tool cavity through the transmission shell and blows from inside to outside, thereby avoiding the chip blocking in the grinding tool cavity to the maximum extent.

Description

Technical Field

[0001] This invention relates to the field of grinding machine technology, and more particularly to an air blowing mechanism inside a grinding machine. Background Technology

[0002] In the field of aluminum body-in-white welding for automobiles, copper electrodes are used for spot welding of the body-in-white. During long-term welding operations, a high-hardness aluminum oxide layer forms on the end face of the copper electrode. If this layer is not ground down, it will significantly impact the welding quality of the body-in-white, potentially causing incomplete welds and insufficient weld strength, severely affecting the overall strength of the vehicle. Therefore, electrode grinding is necessary. Currently, in fully automated welding plants, robots control the insertion of the copper electrodes into the grinding machine's tool socket for grinding.

[0003] The copper electrodes used for spot welding aluminum are relatively large, and during the grinding process, a lot of waste residue will remain inside the grinding machine's tool socket, which is prone to clogging. The existing grinding machine's air blowing device uses external air blowing, and the airflow is blocked by the electrode during the grinding process, making it difficult to enter the tool socket, resulting in the accumulation of waste inside the tool socket. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and to provide an air blowing mechanism for grinding machines.

[0005] This invention is achieved through the following technical solution:

[0006] The air blowing mechanism inside the grinding machine includes a motor, a transmission mechanism connected to the motor, and grinding tools disposed inside the transmission mechanism.

[0007] The transmission mechanism includes a transmission housing, inside which there are a driving wheel and a driven wheel that are rotatably connected. A tool mounting hole is passed through the center of the driven wheel. The shaving tool is fixed in the tool mounting hole and its top surface is higher than the tool mounting hole. The shaving tool has shaving recesses on both the upper and lower sides. The transmission housing has an insertion hole at the position corresponding to the shaving recess for the electrode cap to extend into the shaving recess.

[0008] The transmission housing has an annular guide cavity formed by the transmission housing, the driven wheel and the shaving tool; the side wall of the transmission housing has an air blowing hole that is connected to the guide cavity; the inner wall of the tool mounting hole has at least one air guide groove, and the side wall of the shaving tool has at least one air inlet hole, the air guide groove corresponds to the air inlet hole, and the air inlet hole is connected to the shaving tool socket.

[0009] A further feature of the present invention is that an intermediate wheel is provided between the driving wheel and the driven wheel; the transmission housing includes an upper cover and a lower cover, and the upper cover and the lower cover form a transmission cavity for placing the driving wheel, the intermediate wheel and the driven wheel.

[0010] A further feature of the present invention is that: both the upper cover and the lower cover are provided with through holes at the positions corresponding to the driven wheel, and the through holes are also provided with mounting grooves on the side away from the driven wheel; the cross-section of the driven wheel is a "+" shaped structure, the diameters of the top and bottom surfaces of the driven wheel are both larger than the diameter of the through holes, and a felt gasket is also provided between the driven wheel and the through holes.

[0011] A further feature of the present invention is that the regrinding tool includes a tool holder, and both the upper and lower sides of the tool holder are recessed with regrinding recesses of a hemispherical structure, the bottom surface of the regrinding recess being a plane; the interior of the tool holder has two symmetrically arranged chip removal holes, one of which has a main cutting edge fixed inside, and the other has a secondary cutting edge fixed inside; the air inlet is connected to the chip removal hole.

[0012] The grinding machine chip collection device includes the aforementioned grinding machine internal air blowing mechanism, and also includes a dust collection housing, one side wall of which has an opening for the transmission mechanism to extend into.

[0013] The dust collection housing has a barrier fixed on both the upper and lower surfaces to prevent waste debris from flying out. The center of the barrier has a guide hole for inserting an electrode to be repaired.

[0014] The dust collection housing is connected to the air blowing device, and the dust collection housing also has a chip discharge port, which is connected to the chip collection bucket through a pipe.

[0015] A further feature of the present invention is that the upper and lower surfaces of the dust collection housing are both transparent covers, and an installation hole is provided in the middle of the transparent cover. An annular barrier cover fixes the barrier to the installation hole, and the barrier is a circular brush.

[0016] A further provision of the present invention is that the dust collection housing is provided with at least two tightening members, the tightening members passing through the dust collection housing and extending into the opening, the tightening members being used to fix the dust collection housing to the transmission mechanism.

[0017] A grinding machine, characterized in that it includes the aforementioned grinding machine chip collection device.

[0018] This invention discloses an air blowing mechanism inside a grinding machine, which, compared with the prior art:

[0019] 1) The airflow enters the grinding socket through the transmission housing and blows from the inside out, which fundamentally avoids the situation where the air cannot reach the inside of the grinding socket and minimizes the occurrence of chip blockage in the grinding socket.

[0020] 2) The air intake channel flows directly into the cutter socket, reducing airflow divergence and improving airflow utilization efficiency; the designed progressively accelerating air channel allows the airflow to reach its maximum speed when it passes through the internal air channel to achieve the best chip removal effect.

[0021] 3) The internal air-blowing chip collection system can effectively collect waste chips into the chip collection bin with a chip collection efficiency of over 95%. The transparent soft glass dust collection cover can collect copper chips efficiently while allowing observation of the inside of the tool holder to promptly detect problems such as chip blockage and accumulation.

[0022] 4) The internal air blowing function can grind the aluminum spot welding electrode, and there is also an internal air channel for airflow to pass through, allowing high-speed airflow to blow out from inside the tool socket. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 This is a schematic diagram of the transmission mechanism of the present invention. Figure 1 .

[0025] Figure 3 This is a schematic diagram of the transmission mechanism of the present invention. Figure 2 .

[0026] Figure 4 for Figure 3 A magnified view of side A.

[0027] Figure 5 This is an exploded view of the transmission mechanism of the present invention.

[0028] Figure 6 This is a cross-sectional view of the transmission mechanism of the present invention.

[0029] Figure 7 This is a schematic diagram of the driven wheel of the present invention.

[0030] Figure 8 This is a schematic diagram of the structure of the grinding tool of the present invention.

[0031] Figure 9 This is a schematic diagram of the main cutting edge of the present invention.

[0032] Figure 10 This is a schematic diagram of the secondary cutting edge of the present invention.

[0033] Figure 11 This is a schematic diagram of the chip collection device for the grinding machine according to the present invention.

[0034] Figure 12 This is a schematic diagram of the dust collection housing of the grinding mill chip collection device of the present invention.

[0035] Figure 13 This is a schematic diagram of one form of the grinding machine of the present invention.

[0036] Figure 14 This is a schematic diagram of another form of the grinding machine of the present invention.

[0037] The numbers and letters in the diagram represent the names of the corresponding components:

[0038] The components are as follows: 10. Motor; 20. Transmission mechanism; 30. Sharpening tool; 40. Dust collection housing; 50. Barrier component; 60. Insertion hole; 201. Transmission housing; 202. Drive wheel; 203. Driven wheel; 204. Tool mounting hole; 205. Air blowing hole; 206. Air guide groove; 207. Intermediate wheel; 208. Top cover; 209. Bottom cover; 210. Through hole; 211. Mounting groove; 212. 213. Felt washer; 301. Guide cavity; 302. Grinding socket; 303. Air inlet; 304. Tool holder; 305. Chip removal hole; 306. Main cutting edge; 307. Secondary cutting edge; 308. First cutting edge; 309. First chip breaker groove; 310. Second cutting edge; 401. Opening; 402. Transparent cover plate; 403. Tightening component; 404. Chip removal port; 501. Guide hole. Detailed Implementation

[0039] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0040] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0041] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0042] See Figure 1As shown, the air blowing mechanism inside the grinding machine includes a motor 10, a transmission mechanism 20 connected to the motor 10, and a grinding tool 30 disposed inside the transmission mechanism 20; the motor 10 is a DC planetary geared motor or a servo geared motor, and the motor 10 provides a power source for the transmission mechanism 20; see details. Figures 2 to 7As shown, the transmission mechanism 20 includes a transmission housing 201. Inside the transmission housing 201 are a driving wheel 202 and a driven wheel 203 rotatably connected. A tool mounting hole 204 penetrates the center of the driven wheel 203. The tool mounting hole 204 is a hexagonal prism-shaped through hole. A shaving tool 30 is fixed inside the tool mounting hole 204, with its top surface higher than the tool mounting hole 204. Sharpening recesses 301 are recessed on both the upper and lower sides of the shaving tool 30. The transmission housing 201 has insertion holes 60 at positions corresponding to the sharpening recesses 301 for inserting an electrode cap into the sharpening recesses 301. The output shaft of the motor 10 is connected to the driving wheel 202 of the transmission mechanism 20, meaning the motor 10 provides a power source to the driving wheel 202, allowing it to rotate. Since the driving wheel 202 and the driven wheel 203 are rotatably connected, the motor 10 can drive the driven wheel 203 to rotate. The outer periphery of the shaving tool 30 is connected to the tool mounting hole 203. The mounting hole 204 is matched, and the regrinding tool 30 is fixed in the tool mounting hole 204. Therefore, the rotation of the motor 10 can drive the regrinding tool 30 to rotate so as to facilitate the subsequent regrinding of the electrode cap. When regrinding the electrode cap, the electrode cap extends into the regrinding tool recess 301 through the insertion hole 60 on the transmission housing 201 for regrinding. The interior of the transmission housing 201 forms a structure consisting of the transmission housing 201, the driven wheel 203, and the regrinding tool 203. The annular guide cavity 213; the transmission housing 201 has an air blowing hole 205 on its side wall, which is connected to the guide cavity 213; the inner wall of the tool mounting hole 204 has at least one air guide groove 206; the side wall of the shaving tool 30 has at least one air inlet hole 302, which is located in the middle part of the side wall of the shaving tool 30; the air guide groove 206 corresponds to the air inlet hole 302; and the air inlet hole 302 is connected to the shaving tool recess 301.In the above technical solution, since the driven wheel 203 and the regrinding tool 203 are constantly rotating during the regrinding process, the air blowing hole 205 is opened on the side wall of the transmission housing 201. The air blowing hole 205 on the side wall is connected to an external air blowing device. The air blowing device blows high-speed gas into the guide cavity 213 through the air blowing hole 205. The guide cavity 213 is a sealed cavity. Then, by opening an air guide groove 206 on the inner wall of the tool mounting hole 204, the high-speed gas located inside the guide cavity 213 is able to pass through the air blowing hole 205. The gas can be guided through the air guide groove 206, which corresponds to the air inlet 302 of the shaving tool 30. High-speed gas enters the air inlet 302, which is connected to the shaving tool recess 301. This forms an air blowing path from the air blowing device to the air blowing hole 205, the guide cavity 213, the air guide groove 206, the air inlet 302, and the shaving tool recess 301. This achieves an internal air blowing structure that directly blows gas into the shaving tool recess 301. Therefore, the airflow in this technical solution is transmitted through a transmission... The housing 201 enters the interior of the sharpening recess 301, blowing air from the inside out, fundamentally avoiding the situation where the air cannot reach the inside of the recess, and minimizing the occurrence of chip blockage in the recess; it is worth noting that the bottom height of the air guide groove 206 is consistent with the bottom height of the air inlet 302, that is, the air guide groove 206 extends from top to bottom to the middle of the inner wall of the tool mounting hole 204, thus preventing high-speed gas from flowing out from below; as a preferred embodiment of this technical solution, the air guide groove 206... There are two air inlets 302 and two air guide grooves 206 206 302 302 206 206 206 202 302 206 206 202 302 206 206 302 302 302 206 302 303 304 304 305 306 302 304 306 306 302 ...

[0043] See Figure 5 and Figure 6As shown, an intermediate gear 207 is provided between the driving gear 202 and the driven gear 203. The driving gear 202, intermediate gear 207, and driven gear 203 are all gears. The driving gear 202 meshes with the intermediate gear 207, and the intermediate gear 207 meshes with the driven gear 203. Therefore, the transmission mechanism 20 of this technical solution operates as follows: the motor 10 drives the driving gear 202 to rotate, and then the intermediate gear 207 causes the driven gear 203 to rotate. The grinding tool 30 is fixed inside the driven gear 203. Therefore, the motor 10 drives the grinding tool 30 to rotate, thus... The electrode cap enters the grinding socket 301 for grinding; the transmission housing 201 includes an upper cover 208 and a lower cover 209, and the upper cover 208 and the lower cover 209 form a transmission cavity for placing the driving wheel 202, the intermediate wheel 207 and the driven wheel 203. The transmission cavity mainly places the driving wheel 202, the intermediate wheel 207 and the driven wheel 203. The transmission cavity includes three parts, namely the driving wheel placement cavity, the intermediate wheel placement cavity and the driven wheel placement cavity, and the three placement cavities are interconnected; it is worth noting that the air blowing hole 205 is provided on the side wall of the upper cover 208.

[0044] See Figures 3 to 7 As shown, both the upper cover 208 and the lower cover 209 have through holes 210 at positions corresponding to the driven wheel 203. Each through hole 210 also has a mounting groove 211 circumferentially formed on the side away from the driven wheel 203. The mounting groove 211 is mainly used for mounting the pressure cap. The insertion hole 60 is located at the center of the pressure cap. (See reference...) Figure 5 and Figure 6 As shown, both the upper and lower ends of the driven wheel 203 are fixed with pressure caps, which are connected to the driven wheel by locking screws. The upper and lower ends of the driven wheel 203 are in close contact with the pressure caps, meaning that during the grinding process, the driven wheel 203, the grinding tool 30, and the pressure caps rotate together. A felt washer is also fixed in the mounting groove 211, located between the mounting groove 211 and the pressure cap. The pressure caps fixed to both the upper and lower ends of the driven wheel 203 are mainly used to prevent the driven wheel 203 and the grinding tool 30 from rotating together during operation. The cutting tool 30 exhibits movement. For specific installation instructions regarding the pressure cap, please refer to the electrode cap grinding and shaping machine disclosed in patent document "202221026112.0". It should be noted that the inner diameter of the insertion hole 60 is smaller than the diameter of the cutting tool mounting hole 204; the driven wheel 203 has a cross-section with a "+" shape, and the diameters of both the top and bottom surfaces of the driven wheel 203 are larger than the diameter of the through hole 210. A felt washer 212 is also provided between the driven wheel 203 and the through hole 210. For details, please refer to... Figure 6As shown, bearings are fitted on both the upper and lower ends of the driven wheel 203, allowing it to rotate more smoothly inside the transmission housing 201. The upper felt washer 212 contacts the top surface of the driven wheel 203 and the upper bearing, while the lower felt washer 212 contacts the bottom surface of the driven wheel 203 and the lower bearing. The felt washer 212 primarily functions to seal and prevent oil leakage. Through the felt washer 212 and the felt washer at the pressure cap, the sealing effect of the guide cavity 213 is greatly enhanced, preventing gas leakage. The air blowing hole 205 is located at the upper cover 208, and it connects to the through hole 210 from the side wall of the upper cover 208. Due to the presence of the pressure cap and the top surface of the driven wheel 203, a sealing effect is formed inside the transmission housing 201. A ring-shaped guide cavity 213 is formed by the upper cover 208, driven wheel 203, grinding tool 30 and pressure cover. When the external high-speed airflow enters the guide cavity 213, the high-speed airflow is guided by the air guide groove 206 to blow air from the air inlet 302 to the grinding tool socket 301 to remove waste. It should be noted that although the driven wheel 203 and the grinding tool 30 keep rotating in the working state, the air source can be smoothly introduced into the grinding tool socket 301 by the air guide groove 206 and the air inlet 302 to blow air. It is worth noting that the upper and lower ends of the intermediate wheel 207 are also fitted with bearings. As for the rest of the internal structure of the transmission mechanism 20, this technical solution will not elaborate further. For those skilled in the art, this design is a conventional design.

[0045] See Figure 8 As shown, the tool sharpening 30 includes a tool holder 303, which is a hexagonal prism structure. Both the upper and lower sides of the tool holder 303 are recessed with hemispherical sharpening recesses 301, the bottom surface of which is flat. The tool holder 303 has two symmetrically arranged chip removal holes 304 running through its interior. One chip removal hole 304 houses a main cutting edge 305, and the other chip removal hole 304 houses a secondary cutting edge 306. The air inlet 302 is connected to the chip removal hole 304. The main cutting edge 305 and the secondary cutting edge 306 work together with the grinding socket 301 to grind the electrode cap. The chip removal hole 304 is mainly used for chip removal, so that waste chips will not accumulate inside the grinding socket 301. Moreover, since the air inlet 302 is connected to the chip removal hole 304, a high-speed airflow from the outside blows air into the grinding socket 301 from the chip removal hole 304, thereby blowing the waste chips to the outside. In addition, the chip removal hole 304 can also improve the heat dissipation effect and extend the service life of the grinding tool 30.

[0046] See Figure 9 and Figure 10As shown, the main cutting edge 305 has a T-shaped structure with arc-shaped upper and lower side walls. Multiple first cutting edges 307 and multiple first chip breaker grooves 308 are provided on both the upper and lower side walls of the main cutting edge 305. The rotation of the first cutting edges 307 achieves the main cutting and support function on the electrode cap end face and arc surface. The first chip breaker grooves 308 break the chips generated during the cutting process and guide them to the chip removal hole 304 of the tool holder 303. The secondary cutting edge 306 has a T-shaped structure with arc-shaped upper and lower side walls. Multiple second cutting edges 309 and multiple second chip breaker grooves 310 are provided on both the upper and lower side walls of the secondary cutting edge 306. The rotation of the second cutting edges 309 achieves the secondary cutting and support function on the electrode cap cross-section and arc surface. The second chip breaker grooves 310 break the chips generated during the cutting process and guide them to the chip removal hole 304 of the tool holder 303. The chips generated during the process are broken off and guided to the chip removal hole 304 of the tool holder 303. Both the main and secondary cutting edges adopt a single-sided sharpening structure to increase the tool clearance angle. On the one hand, this increases the sharpness of the cutting edge, and on the other hand, it guides the generated chips. It can match different cutting thicknesses under different cutting conditions, and the chip removal density and chip removal effect are good. Moreover, there is a relatively abundant chip removal hole between the main and secondary cutting edges. This chip removal hole can quickly remove the chips generated during the cutting process without affecting the overall strength of the tool holder. The above is one implementation of the main and secondary cutting edges, but it does not mean that this technical solution can only use the main and secondary cutting edges with the above structure. The structural description of the main and secondary cutting edges is only for understanding this technical solution.

[0047] In the above technical solution, it should be noted that the internal air blowing mechanism of the grinding machine proposed in this technical solution mainly protects the internal air blowing structure, which is mainly realized around the air blowing hole 205, the air guide groove 206, and the air inlet 302.

[0048] See Figure 11 and Figure 12As shown, the chip collection device for the grinding machine includes the aforementioned internal air blowing mechanism and a dust collection housing 40. One side wall of the dust collection housing 40 has an opening 401 for the transmission mechanism 20 to extend into. The interior of the dust collection housing 40 has a cavity, which provides a space for the grinding machine to grind the electrode cap. The opening 401 of the dust collection housing 40 moves toward the transmission mechanism 20 until it covers the grinding tool 30 of the transmission mechanism 20. Both the upper and lower surfaces of the dust collection housing 40 are fixed with barrier members 50 to prevent waste chips from flying out. The center of the barrier member 50 has a guide hole 501 for inserting the electrode to be ground. The guide hole on the barrier member 50... The hole 501 allows the electrode to be refurbished to smoothly enter the dust collection housing 40 for refurbishment. Simultaneously, the barrier 50 prevents refurbished debris from flying out of the dust collection housing 40. Furthermore, after the refurbishment process is completed, the barrier 50 helps to brush off any debris adhering to the electrode, significantly improving chip collection efficiency and preventing debris from flying out. The dust collection housing 40 is connected to an air blowing device and also has a chip discharge port 404 connected to a chip collection bin via a pipe. The chip discharge port 404 is located on the right side of the dust collection housing 40, while the air blowing device is connected to the left side of the dust collection housing 40, allowing air to be blown into the dust collection housing 40. The working principle of this technical solution is as follows: The dust collection housing 40 is connected to the air blowing device. The dust collection housing 40 also has a chip discharge port 404, which is connected to the chip collection bucket through a pipe. In actual use, the grinding mechanism of the grinding machine is first inserted into the dust collection housing 40 through the opening 401 and fixed. Then, the electrode to be ground is inserted into the dust collection housing 40 through the guide hole 501. The grinding machine is then started to grind the electrode. During the grinding process, the air blowing device works, blowing air into the dust collection housing 40. The waste chips removed during grinding are forced into the pipe through the chip discharge port by the air blowing device until... Waste chips enter the chip collection bin. During this process, the presence of the barrier 50 can largely prevent waste chips from flying out. After the electrode is ground, the electrode is separated from the barrier 50, and the barrier 50 can also brush off the waste chips stuck to the electrode. Moreover, when the air blowing device is running, the internal air blowing device is connected to the external air source and also works to blow air into the grinding tool socket 301, thereby blowing out the waste chips. By combining internal and external air blowing, the waste chips inside the grinding tool socket 301 can be blown out, preventing waste chips from accumulating. The blown-out waste chips are collected uniformly through the chip collection bin, and there will be no chip blockage. At the same time, the unified collection of waste chips can also avoid impacting the workshop environment.

[0049] The dust collection housing 40 has transparent covers 402 on both its upper and lower surfaces. A mounting hole is provided in the middle of each transparent cover 402. An annular barrier cover fixes a barrier member 50 to the mounting hole. The barrier member 50 is a circular brush that can brush waste debris off the electrode cap. The dust collection housing 40 includes a main frame, with transparent covers fixed to its top, bottom, and rear sides. The transparent covers facilitate observation of copper shavings collection, allowing the air blowing device to be shut off promptly after all copper shavings inside the dust collection housing have been collected, thus saving energy. Figure 12 Taking the angle as an example, the front side of the main frame has an opening 401, the right side of the main frame is fixed with an air inlet plate, the outside of the air inlet plate is fixed with an air inlet connector, the air inlet connector is used to connect an air blowing device, the left side of the main frame is fixed with a chip discharge port 404, the chip discharge port is a funnel-shaped structure, the chip discharge port 404 is a funnel-shaped structure, which can guide copper chips.

[0050] The dust collection housing 40 is also provided with at least two tightening members 403. The tightening members 403 pass through the dust collection housing 40 and extend into the opening 401. The tightening members 403 are used to fix the dust collection housing 40 to the transmission mechanism 20. A rotating ring is fixed to the upper end of the tightening member. The rotating ring is used to rotate the tightening member. At least two threaded through holes are opened at the upper end of the main frame. The transparent cover plate located above has mounting holes at the positions corresponding to the threaded through holes. The tightening member is preferably a bolt. A buffer layer is fixed to the bottom surface of the tightening member. The buffer layer is made of polyurethane. Alternatively, rubber can be used. When the transmission mechanism extends into the integrated housing 40 through the opening 401, the tightening member is rotated to lower it and contact the grinding machine, thereby fixing the transmission mechanism 20 of the grinding machine to the dust collection housing 40 to prevent it from loosening and also forming a sealed space inside the dust collection housing 40. In addition, as an extension, the lower end of the main frame is also provided with a threaded through hole, that is, the lower end of the main frame is also threaded with a tightening member. By rotating the lower tightening member, the top surface of the lower tightening member contacts the transmission mechanism, thereby fixing the two together.

[0051] A grinding machine includes the aforementioned grinding machine chip collection device, see reference. Figure 13 As shown, Figure 13 It is a stationary grinding machine; Figure 14 It is a swing-arm type grinding machine. When the grinding machine grinds the electrode, the geared motor drives the connecting rod to move. The four-bar linkage drives the rocker arm to enter the 90° working position, and the robot controls the electrode to enter the tool socket for grinding. After the grinding is completed, the geared motor works and drives the rocker arm to swing to the 180° non-working position.

[0052] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

[0053] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. An air blowing mechanism inside a grinding machine, characterized in that, It includes a motor (10), a transmission mechanism (20) connected to the motor (10), and a grinding tool (30) disposed inside the transmission mechanism (20). The transmission mechanism (20) includes a transmission housing (201). Inside the transmission housing (201) are a drive wheel (202) and a driven wheel (203) that are rotatably connected. A tool mounting hole (204) is passed through the center of the driven wheel (203). A shaving tool (30) is fixed in the tool mounting hole (204) and its top surface is higher than the tool mounting hole (204). Both the upper and lower sides of the shaving tool (30) are recessed with shaving recesses (301). The transmission housing (201) is provided with an insertion hole (60) at the position corresponding to the shaving recess (301) for the electrode cap to be inserted into the shaving recess (301). The transmission housing (201) has an annular guide cavity (213) formed inside, consisting of the transmission housing (201), the driven wheel (203), and the shaving tool (30). The side wall of the transmission housing (201) is provided with an air blowing hole (205), which is connected to the guide cavity (213). The inner wall of the tool mounting hole (204) is provided with at least one air guide groove (206), and the side wall of the shaving tool (30) is provided with at least one air inlet hole (302). The air guide groove (206) corresponds to the air inlet hole (302), and the air inlet hole (302) is connected to the shaving tool socket (301). An intermediate wheel (207) is also provided between the driving wheel (202) and the driven wheel (203); the transmission housing (201) includes an upper cover (208) and a lower cover (209), and the upper cover (208) and the lower cover (209) form a transmission cavity for placing the driving wheel (202), the intermediate wheel (207) and the driven wheel (203); The tool sharpening device (30) includes a tool holder (303), and both the upper and lower sides of the tool holder (303) are recessed with a hemispherical sharpening recess (301). The bottom surface of the sharpening recess (301) is a plane. The tool holder (303) has two symmetrically arranged chip removal holes (304) running through its interior. One chip removal hole (304) is fixed with a main cutting edge (305), and the other chip removal hole (304) is fixed with a secondary cutting edge (306). The air inlet (302) is connected to the chip removal hole (304).

2. The air blowing mechanism inside the grinding machine according to claim 1, characterized in that: The upper cover (208) and the lower cover (209) are provided with through holes (210) at the positions corresponding to the driven wheel (203). The through holes (210) are also provided with mounting grooves (211) on the side away from the driven wheel (203). The driven wheel (203) has a cross-shaped structure. The diameters of the top and bottom surfaces of the driven wheel (203) are larger than the diameter of the through holes (210). A felt washer (212) is also provided between the driven wheel (203) and the through holes (210).

3. A chip collection device for a grinding machine, characterized in that, The grinding machine includes the air blowing mechanism as described in any one of claims 1-2, and also includes a dust collection housing (40), one side wall of which has an opening (401) into which the transmission mechanism (20) extends. The dust collection housing (40) is fixed with a barrier (50) on both the upper and lower surfaces to prevent waste from flying out. The center of the barrier (50) has a guide hole (501) for inserting the electrode to be repaired. The dust collection housing (40) is connected to the air blowing device. The dust collection housing (40) also has a chip discharge port, which is connected to the chip collection bucket through a pipe.

4. The chip collection device for a grinding machine according to claim 3, characterized in that: The dust collection housing (40) has two transparent covers (402) on its upper and lower sides. An installation hole is provided in the middle of the transparent cover (402). An annular barrier cover fixes the barrier (50) to the installation hole. The barrier (50) is a circular brush.

5. The chip collection device for a grinding machine according to claim 4, characterized in that: The dust collection housing (40) is also provided with at least two tightening members (403), which pass through the dust collection housing (40) and extend into the opening (401). The tightening members (403) are used to fix the dust collection housing (40) to the transmission mechanism (20).

6. A grinding machine, characterized in that, It includes the chip collection device for the grinding machine as described in claim 5.

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