Abrasive paper tearing device and automatic grinding and polishing equipment

Abstract

The invention provides an abrasive paper tearing device and automatic grinding and polishing equipment. The abrasive paper tearing device comprises a carrier plate, a hole cutter, a guide structure, two tearing pieces and a first driving mechanism. The carrier plate can move along a first direction; the hole cutter comprises a cutter body and a cutter head, the cutter body is arranged on the carrier plate and extends out of the carrier plate in the first direction, and the cutter head is connected to the end of the cutter body. The guide structure is arranged on the knife body and provided with two guide channels, the two ends of each guide channel are a first port and a second port respectively, and the second ports are located between the first ports and the knife head; the opening directions of the two first ports are opposite to the tool bit in the first direction, the two second ports are correspondingly arranged in the first direction, and the opening directions of the two second ports are opposite in the second direction. The two tearing pieces are arranged in the two guide channels in a penetrating mode respectively, and the two ends of each tearing piece are the first end and the second end respectively. The first ends extend out of the first port and extend in the first direction, and the two first ends are jointly connected to a first driving mechanism; the second end can stretch out and draw back from the second port in the second direction.

Description

Technical Field

[0001] The present invention relates to the technical field of grinding equipment, and in particular to a sandpaper tearing device and automatic grinding and polishing equipment. Background Art

[0002] In the robot-automated grinding and polishing operation, as the grinding operation proceeds, sandpaper, as a consumable material, needs to be frequently replaced with new sandpaper to ensure a stable grinding effect. The most important step in replacing sandpaper is to tear off the used sandpaper from the grinding disc. Depending on the type of operation, the average frequency of sandpaper replacement is about 5 minutes each time. Although the existing sandpaper tearing device can tear off the sandpaper, it mainly tears off the sandpaper from the edge of the sandpaper. The edge of the used sandpaper is prone to curling, wear and other phenomena, which leads to the failure of the existing sandpaper tearing device. Failure to tear off the sandpaper in time or failure will directly lead to the shutdown of the automated grinding and polishing operation. The replacement of sandpaper in the robot-automated grinding and polishing operation still has a certain dependence on manual labor, and the inefficient sandpaper tearing state seriously affects the improvement of the production rhythm of the grinding and polishing operation. Summary of the invention

[0003] A main purpose of the present disclosure is to overcome at least one defect of the above-mentioned prior art and provide a sandpaper tearing device with high sandpaper tearing efficiency and success rate.

[0004] To achieve the above objectives, the present disclosure adopts the following technical solutions:

[0005] According to one aspect of the present disclosure, a sandpaper tearing device is provided, which is used for automatically tearing off the sandpaper arranged on a grinding disc, wherein the sandpaper is arranged on one side of the grinding disc, and a slot hole is arranged in the middle of the grinding disc, the slot hole is at least open to the disc surface provided with the sandpaper, and the sandpaper covers the slot hole; wherein: the sandpaper tearing device comprises a carrier plate, a hole cutting knife, a guide structure, two tearing pieces and a first driving mechanism; the carrier plate can move in a first direction perpendicular to the disc surface of the grinding disc, and has a first edge, and the first edge extends in a second direction perpendicular to the first direction; the hole cutting knife comprises a blade body and a blade head, the blade body is arranged on the carrier plate and extends out of the first edge in the first direction, and the blade head is connected to the end of the blade body extending out of the first edge; the guide structure is arranged on the blade body, and has a There are two guide channels, the two ends of the guide channels are respectively a first port and a second port, the second port is located between the first port and the cutter head; the opening directions of the two first ports are respectively along the first direction away from the cutter head, the two second ports are correspondingly arranged in the first direction and the opening directions are opposite along the second direction; the two tearing pieces are respectively penetrated through the two guide channels, the two ends of the tearing pieces are respectively a first end and a second end; the first end extends out of the first port and extends along the first direction, and the two first ends are commonly connected to the first driving mechanism; the second end can be retracted and extended by the second port along the second direction; the first driving mechanism is arranged on the carrier plate, which can drive the two first ends to move synchronously along the first direction.

[0006] According to one embodiment of the present disclosure, along a third direction perpendicular to the first direction and perpendicular to the second direction, the height of the blade head is greater than the height of the blade body, so that a receiving groove is formed on the side of the blade body facing away from the carrier plate; wherein the guide structure is at least partially received in the receiving groove.

[0007] According to one of the embodiments of the present disclosure, along the third direction, a side of the blade head away from the carrier plate exceeds or is flush with a side of the guide channel away from the blade body.

[0008] According to one embodiment of the present disclosure, the guide channel includes a first channel and a second channel, the first channel extends along the first direction, the second channel extends along the second direction, the first channel and the second channel are connected at one end by a bend, the other end of the first channel is the first port, and the other end of the second channel is the second port; wherein a portion of an end surface of the blade head facing the carrier plate in the third direction facing away from the carrier plate and extending beyond the blade body forms a first groove wall of the accommodating groove, and a portion of the guide structure provided with the second channel is provided at the first groove wall.

[0009] According to one embodiment of the present disclosure, the guide structure includes two guide units, and the two guide channels are respectively arranged on the two guide units; wherein the guide unit includes a first part and a second part, the first part extends along the first direction, the second part extends along the second direction, each end of the first part and the second part is bent and connected, the first port is arranged at the other end surface of the first part, and the second port is arranged at the other end surface of the second part.

[0010] According to one embodiment of the present disclosure, the first part includes a main body part and a mounting part, one end of the main body part is connected to the second part, one end of the mounting part is connected to the other end of the main body part, and the first port is arranged on the other end surface of the mounting part; wherein, along the second direction, the width of the mounting part is greater than the width of the main body part, and the guide unit is arranged on the carrier via the mounting part.

[0011] According to one embodiment of the present disclosure, at least a portion of the mounting portion overlaps with an orthographic projection of a portion of the blade body on the carrier plate, and the mounting portion and the blade body are jointly disposed on the carrier plate via a connecting member.

[0012] According to one embodiment of the present disclosure, the two guide units have the same structure and are arranged in mirror image along the second direction, so that the two guide channels are symmetrically arranged about a symmetry axis extending along the first direction.

[0013] According to one of the embodiments of the present disclosure, wherein: the second end of the tear sheet is wedge-shaped or arc-shaped; and / or the cutter head is wedge-shaped, and the blade of the cutter head extends along the second direction.

[0014] It can be seen from the above technical solution that the advantages and positive effects of the sandpaper tearing device proposed in the present disclosure are:

[0015] The sandpaper tearing device proposed in the present disclosure includes a carrier plate, a hole cutting knife, a guide structure, two tearing pieces and a first driving mechanism; the carrier plate can move along a first direction; the hole cutting knife includes a blade body and a blade head, the blade body is arranged on the carrier plate and extends out of the carrier plate along the first direction, and the blade head is connected to the end of the blade body; the guide structure is arranged on the blade body, and is provided with two guide channels, the two ends of the guide channel are respectively a first port and a second port, and the second port is located between the first port and the blade head; the opening directions of the two first ports are respectively away from the blade head along the first direction, and the two second ports are correspondingly arranged in the first direction and the opening directions are opposite along the second direction; the two tearing pieces are respectively penetrated through the two guide channels, and the two ends of the tearing pieces are respectively a first end and a second end; the first end extends out of the first port and extends along the first direction, and the two first ends are commonly connected to the first driving mechanism; the second end can be retracted and extended by the second port along the second direction. Through the above design, the present invention can realize that the tearing piece is inserted from the middle of the sandpaper between the sandpaper and the grinding disk for tearing, and the two guide channels of the guide structure are used to realize the opposite extension and contraction of the two tearing pieces, thereby solving the problem of the existing solution of using the sandpaper edge tearing solution with great tearing difficulty and poor tearing effect, which is conducive to improving the efficiency and success rate of sandpaper tearing.

[0016] Another main purpose of the present disclosure is to overcome at least one defect of the above-mentioned prior art and provide an automated grinding and polishing equipment using the above-mentioned sandpaper tearing device.

[0017] To achieve the above objectives, the present disclosure adopts the following technical solutions:

[0018] According to one aspect of the present disclosure, an automated grinding and polishing device is provided, which includes a grinding and polishing mechanism and a sandpaper tearing device proposed in the present disclosure and described in the above-mentioned embodiment; the grinding and polishing mechanism includes a grinding disc, one side of the grinding disc is provided with sandpaper, a slot hole is provided in the middle of the grinding disc, and the slot hole is at least open to the disc surface provided with sandpaper; the sandpaper tearing device is used for automatically tearing off the sandpaper provided on the grinding disc.

[0019] It can be seen from the above technical solutions that the advantages and positive effects of the automated grinding and polishing equipment proposed in the present disclosure are:

[0020] The automated grinding and polishing equipment proposed in the present disclosure can improve the efficiency and success rate of sandpaper tearing by adopting the sandpaper tearing device proposed in the present disclosure, which is beneficial to improving the production efficiency of the grinding and polishing operation of the automated grinding and polishing equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Various objects, features and advantages of the present disclosure will become more apparent by considering the following detailed description of preferred embodiments of the present disclosure in conjunction with the accompanying drawings. The accompanying drawings are merely exemplary illustrations of the present disclosure and are not necessarily drawn to scale. In the accompanying drawings, the same reference numerals always refer to the same or similar parts. Among them:

[0022] Figure 1 is a schematic diagram of a three-dimensional structure of a sandpaper tearing device according to an exemplary embodiment;

[0023] Figure 2 yes Figure 1 The three-dimensional structural schematic diagram of the sandpaper tearing device in a working state is shown;

[0024] Figure 3 yes Figure 1 An enlarged schematic diagram of part A in FIG.

[0025] Figure 4 yes Figure 2 An enlarged schematic diagram of part B in FIG.

[0026] Figure 5 yes Figure 1 An enlarged schematic diagram of a partial structure of a sandpaper tearing device is shown;

[0027] Figure 6 yes Figure 5 An enlarged schematic diagram of part C in FIG.

[0028] Figure 7 yes Figure 5 An enlarged schematic diagram of part D in FIG.

[0029] Figure 8 yes Figure 1 The three-dimensional structural schematic diagram of the sandpaper tearing device and a grinding disc is shown.

[0030] The following are the descriptions of the reference numerals:

[0031] 100.Sandpaper tearing device;

[0032] 110. Carrier board;

[0033] 111. First edge;

[0034] 120. Hole cutting knife;

[0035] 121. Blade;

[0036] 122. Knife head;

[0037] 1221. Blade;

[0038] 123. Receiving tank;

[0039] 1231. First groove wall;

[0040] 130. Guidance structure;

[0041] 1311. First port;

[0042] 1312. Second port;

[0043] 132. Guidance unit;

[0044] 1321. Part I;

[0045] 13211. Ontology part;

[0046] 13212. Installation Department;

[0047] 1322. Part II;

[0048] 133. Connectors;

[0049] 140. Tear the film;

[0050] 141. First end;

[0051] 142. Second end;

[0052] 150. Driving cylinder;

[0053] 151. Cylinder body;

[0054] 152. Telescopic rod;

[0055] 153. Adapter plate;

[0056] 1531. Transfer Department;

[0057] 200. Grinding disc;

[0058] 210. Sandpaper;

[0059] X. First direction;

[0060] Y. Second direction;

[0061] Z. Third direction. DETAILED DESCRIPTION

[0062] Typical embodiments that embody the features and advantages of the present disclosure will be described in detail in the following description. It should be understood that the present disclosure can have various changes in different embodiments without departing from the scope of the present disclosure, and the descriptions and drawings therein are essentially for illustrative purposes rather than for limiting the present disclosure.

[0063] In the following description of different exemplary embodiments of the present disclosure, reference is made to the accompanying drawings, which form a part of the present disclosure and in which different exemplary structures, systems and steps that can implement multiple aspects of the present disclosure are shown by way of example. It should be understood that other specific schemes of components, structures, exemplary devices, systems and steps can be used, and structural and functional modifications can be made without departing from the scope of the present disclosure. Moreover, although the terms "above", "between", "within", etc. may be used in this specification to describe different exemplary features and elements of the present disclosure, these terms are used herein only for convenience, such as according to the direction of the examples described in the accompanying drawings. Nothing in this specification should be construed as requiring a specific three-dimensional orientation of the structure to fall within the scope of the present disclosure.

[0064] See also Figure 1 , which representatively shows a three-dimensional structural schematic diagram of the sandpaper tearing device 100 proposed in the present disclosure, which specifically shows the state when the second end 142 of the tearing piece 140 does not extend out of the second end 142 opening 1312 of the guide channel. In this exemplary embodiment, the sandpaper tearing device 100 proposed in the present disclosure is described by taking the application in automated grinding and polishing equipment as an example. It is easy for those skilled in the art to understand that in order to apply the relevant design of the present disclosure to other types of grinding equipment, various modifications, additions, substitutions, deletions or other changes are made to the specific embodiments described below, and these changes are still within the scope of the principle of the sandpaper tearing device 100 proposed in the present disclosure.

[0065] like Figure 1 As shown, in one embodiment of the present disclosure, the sandpaper tearing device 100 proposed in the present disclosure is used to automatically tear off the sandpaper 210 set on the grinding disc 200. The sandpaper 210 is set on one side of the grinding disc 200, and a slot hole (such as a through hole or a groove opened on the above-mentioned disc surface) is set in the middle of the grinding disc 200, and the slot hole is at least opened on the disc surface where the sandpaper 210 is set, and the sandpaper 210 covers the slot hole. On this basis, the sandpaper tearing device 100 proposed in the present disclosure includes a carrier plate 110, a hole cutting knife 120, a guide structure 130, two tearing pieces 140 and a first driving mechanism. Figures 2 to 8 , Figure 2 1 represents a schematic diagram of the three-dimensional structure of the sandpaper tearing device 100 in a working state, which specifically shows the state when the second end 142 of the tearing piece 140 extends out of the second end 142 opening 1312 of the guide channel; Figure 3 A representative example is shown in Figure 1 A magnified schematic diagram of part A in Figure 4 A representative example is shown in Figure 2 An enlarged schematic diagram of part B in FIG. Figure 5 , which is a representative enlarged schematic diagram of a part of the structure of the sandpaper tearing device 100; Figure 6 Representatively shown in Figure 5 An enlarged schematic diagram of part C in FIG. Figure 7 Representatively shown in Figure 5 An enlarged schematic diagram of part D in FIG.

[0066] Figure 8 The three-dimensional structure diagram of the sandpaper tearing device 100 and a grinding disc 200 is representatively shown in FIG. The structure, connection mode and functional relationship of each main component of the sandpaper tearing device 100 proposed in the present disclosure will be described in detail below in conjunction with the above drawings.

[0067] like Figures 1 to 8As shown, in one embodiment of the present disclosure, the carrier plate 110 can move along a first direction X perpendicular to the surface of the grinding disc 200. The carrier plate 110 has a first edge 111, and the first edge 111 extends along a second direction Y perpendicular to the first direction X, that is, the first edge 111 is perpendicular to the first direction X. The hole cutter 120 includes a blade body 121 and a cutter head 122, the blade body 121 is disposed on the carrier plate 110, the blade body 121 extends out of the first edge 111 of the carrier plate 110 along the first direction X, and the cutter head 122 is connected to the end of the blade body 121 extending out of the first edge 111. The guide structure 130 is disposed on the blade body 121 of the hole cutter 120, and the guide structure 130 is provided with two guide channels, and the two ends of the guide channel are respectively a first end 141 opening 1311 and a second end 142 opening 1312, and the second end 142 opening 1312 is located between the first end 141 opening 1311 and the cutter head 122. Among them, the opening directions of the two first ends 141 openings 1311 of the two guide channels are respectively opposite to the cutter head 122 along the first direction X, and the two second ends 142 openings 1312 of the two guide channels are arranged correspondingly in the first direction X, and the opening directions of the two second ends 142 openings 1312 are opposite along the second direction Y. For example, assuming that the first direction X and the second direction Y shown in the accompanying drawings are both horizontal directions, and the first direction X is defined as the "front and rear directions", the opening directions of the two second ends 142 openings 1312 are respectively "left and right directions". The two guide channels can respectively guide and restrict the movement of the two tearing pieces 140. The two tearing pieces 140 are respectively arranged in the two guide channels, and the two ends of the tearing piece 140 are respectively the first end 141 and the second end 142. The first end 141 extends out of the first end 141 opening 1311 of the guide channel, and the first end 141 extends along the first direction X, and the two first ends 141 of the two tearing pieces 140 are commonly connected to the first driving mechanism. The second end 142 can be extended and retracted along the second direction Y by the second end 142 opening 1312 of the guide channel. The first driving mechanism is disposed on the carrier 110, and the first driving mechanism can drive the two first ends 141 to move synchronously along the first direction X. Through the above design, the present disclosure can realize that the tearing piece 140 is inserted from the middle of the sandpaper 210 between the sandpaper 210 and the sanding disc 200 for tearing, and the two guide channels of the guide structure 130 are used to realize the opposite extension and retraction of the two tearing pieces 140, thereby solving the problem of the existing solution of using the sandpaper 210 edge tearing solution with greater tearing difficulty and poor tearing effect, which is conducive to improving the efficiency and success rate of tearing the sandpaper 210.

[0068] As described above, the working process of tearing off the sandpaper 210 using the sandpaper tearing device 100 proposed in the present disclosure generally includes: when the sandpaper 210 set on the grinding disc 200 needs to be torn off, the present disclosure drives the carrier 110 to move toward the grinding disc 200 along the first direction X. During this movement, the hole cutter 120 cuts a slit in the middle position of the grinding disc 200 (for example, but not limited to the geometric center position of the disc surface of the grinding disc 200) and extends into the slot of the grinding disc 200 until the position of the two second ends 142 openings 1312 corresponds to the area between the disc surface of the grinding disc 200 and the sandpaper 210 (for example, the glue layer area that bonds the grinding disc 200 and the sandpaper 210), and the carrier 110 stops moving. Then, the first drive mechanism drives the two first ends 141 of the two tearing pieces 140 to move synchronously along the first direction X toward the grinding disc 200. Under the guidance of the two guide channels, the two second ends 142 of the two tearing pieces 140 extend from the two second end 142 openings 1312 and are respectively inserted into the area between the grinding disc 200 and the sandpaper 210 on both sides of the slot. By controlling the extension length of the tearing piece 140, it is possible to select the second end 142 of the tearing piece 140 to extend out of the edge of the sandpaper 210 when the tearing piece 140 is extended in place. Finally, the grinding disc 200 is controlled to rotate so that the two tearing pieces 140 rotate relative to the sandpaper 210 and the grinding disc 200 (for example, a relative rotation of half a circle, i.e., 180°, or a certain angle more on this basis, such as a total rotation of 185°, etc.), so that the sandpaper 210 is completely torn off from the surface of the grinding disc 200. After the sandpaper 210 is torn off, the grinding disc 200 is moved to other positions along with other structures of the equipment (such as a robotic arm, etc.), such as to a replacement station for a new sandpaper 210, and the present invention can drive the carrier plate 110 to reset, and drive the two tearing pieces 140 to be retracted respectively through the first driving mechanism, thereby completing a complete sandpaper 210 tearing process, and can wait for the next sandpaper 210 tearing process.

[0069] like Figures 3 to 5 As shown, in one embodiment of the present disclosure, a third direction Z is defined, which is perpendicular to the first direction X and perpendicular to the second direction Y. On this basis, the height of the cutter head 122 can be greater than the height of the blade body 121, so that a receiving groove 123 is formed on the side of the blade body 121 facing away from the carrier 110, that is, the side of the cutter head 122 facing away from the carrier 110 in the third direction Z is higher than the side of the blade body 121 facing away from the carrier 110. Accordingly, at least part of the guide structure 130 (for example, but not limited to the whole shown in the drawings) can be accommodated in the receiving groove 123. Through the above design, the present disclosure can utilize the receiving groove 123 formed by the hole cutting knife 120 to accommodate the guide structure 130, which is conducive to simplifying the complexity of the structure and facilitating the arrangement of the guide structure 130. In some embodiments, the guide structure 130 can also be arranged at other relative positions of the hole cutting knife 120, which is not limited to the present embodiment.

[0070] like Figures 3 to 5 As shown, based on the design that the guide structure 130 is at least partially accommodated in the accommodating groove 123 formed by the hole cutting knife 120, in one embodiment of the present disclosure, along the third direction Z, the side of the cutter head 122 away from the carrier plate 110 can be flush with the side of the guide channel away from the blade body 121. Through the above structural design, when the tearing piece 140 is extended and inserted between the sandpaper 210 and the grinding disc 200, the present disclosure can ensure that the tearing piece 140 is completely within the range of the opening cut by the cutter head 122 on the sandpaper 210 in the third direction Z, so as to avoid the tearing piece 140 being blocked by the uncut sandpaper 210 when extending, and can achieve a better extension effect of the tearing piece 140. In some embodiments, the side of the cutter head 122 away from the carrier plate 110 can also exceed the side of the guide channel away from the blade body 121, that is, the side of the cutter head 122 away from the carrier plate 110 is farther from the carrier plate 110 than the side of the guide channel away from the blade body 121, which is not limited to this embodiment.

[0071] like Figures 3 to 5 As shown, based on the design that the guide structure 130 is at least partially accommodated in the receiving groove 123 formed by the hole cutting knife 120, in one embodiment of the present disclosure, the guide channel may include a first channel and a second channel, the first channel extending along the first direction X, and the second channel extending along the second direction Y. The first channel and the second channel are connected at one end by bending (for example, an arc-shaped bending structure is adopted), the other end of the first channel is the above-mentioned first end 141 opening 1311 of the guide channel, and the other end of the second channel is the above-mentioned second end 142 opening 1312 of the guide channel. On this basis, the end surface of one side of the cutter head 122 facing the carrier plate 110 in the third direction Z facing away from the carrier plate 110 and exceeding the blade body 121 forms the first groove wall 1231 of the receiving groove 123, and the part of the guide structure 130 provided with the second channel (for example, the second part 1322 in the following embodiment) can be provided at the first groove wall 1231.

[0072] like Figures 3 to 7 As shown, in one embodiment of the present disclosure, the guide structure 130 may include two guide units 132, and two guide channels are respectively provided in the two guide units 132. The guide channel may be a hollow guide groove structure provided in the guide unit 132. Specifically, the guide unit 132 includes a first portion 1321 and a second portion 1322, the first portion 1321 extends along a first direction X, and the second portion 1322 extends along a second direction Y. The first portion 1321 and the second portion 1322 are each bent and connected at one end (for example, an arc-shaped bending structure is adopted), the first end 141 of the guide channel is provided at the other end face of the first portion 1321, and the second end 142 of the guide channel is provided at the other end face of the second portion 1322.

[0073] like Figures 3 to 7 As shown, based on the design that the guide structure 130 includes two guide units 132 and the guide unit 132 includes a first portion 1321 and a second portion 1322, in one embodiment of the present disclosure, the first portion 1321 may include a body portion 13211 and a mounting portion 13212, one end of the body portion 13211 is connected to the second portion 1322, one end of the mounting portion 13212 is connected to the other end of the body portion 13211, and the first end 141 of the guide channel 1311 is disposed on the other end surface of the mounting portion 13212. On this basis, along the second direction Y, the width of the mounting portion 13212 may be greater than the width of the body portion 13211, and the guide unit 132 may be disposed on the carrier 110 via the mounting portion 13212. Through the above design, the present disclosure can utilize the mounting portion 13212 to increase the assembly area of ​​the guide unit 132 and the carrier 110, which is conducive to reducing the assembly difficulty and improving the transfer effect. At the same time, the first part 1321 is designed with a body part 13211 having a smaller width, which can save material costs and reduce the weight of the device. In some embodiments, according to different assembly requirements of the guide unit 132 and the carrier 110 (hole cutter 120), the first part 1321 can also adopt a structure with uniform width, for example, only including the body part 13211 shown in the figure without including the mounting part 13212, which is not limited to this embodiment.

[0074] like Figure 1 , Figure 2 and Figure 5 As shown, based on the design that the first portion 1321 of the guide unit 132 includes a main body portion 13211 and a mounting portion 13212, in one embodiment of the present disclosure, at least a portion of the mounting portion 13212 and a portion of the blade body 121 may overlap in an orthographic projection on the carrier 110, and accordingly, the mounting portion 13212 and the blade body 121 may be disposed on the carrier 110 together through the connecting member 133. Through the above design, the present disclosure can use the connecting member 133 to simultaneously assemble the guide structure 130 and the hole cutting knife 120 with the carrier 110, which is conducive to reducing assembly processes, improving assembly efficiency, and reducing structural complexity.

[0075] like Figure 5As shown, based on the design that the guide structure 130 includes two guide units 132, in one embodiment of the present disclosure, the two guide units 132 are symmetrically arranged along a symmetry axis extending along the second direction Y. That is, a reference plane parallel to the first direction X and parallel to the second direction Y is defined, and the orthographic projection figures of the two guide units 132 on the reference plane are symmetrical. That is, the two guide channels are also symmetrically arranged along the above-mentioned symmetry axis. In other words, the two guide units 132 can be completely identical components and arranged in a mirror image. Through the above design, the present disclosure can reduce the complexity of the structure. When the guide structure 130 includes two guide units 132, there is no need to add an additional guide unit 132 for selecting "left" or "right" when assembling the sandpaper tearing device 100, further improving the production efficiency and avoiding misassembly. In some embodiments, when the guide structure 130 is an integrated component and the two guide channels are both arranged on the integrated component, the two guide channels can still adopt the above-mentioned symmetrical design, which is not limited to this embodiment.

[0076] like Figure 3 As shown, in one embodiment of the present disclosure, the second end 142 of the tearing piece 140 may be wedge-shaped. Through the above design, the present disclosure utilizes the tearing piece 140 with a wedge-shaped end, which can make it easier to uncover the connection between the sandpaper 210 and the sanding disc 200 (for example, the bonding of the adhesive layer). In some embodiments, the second end 142 of the tearing piece 140 may also be in other shapes. For example, the second end 142 of the tearing piece 140 may be arc-shaped (for example, but not limited to a circular arc chamfered structure). Accordingly, the present disclosure can effectively prevent the tearing piece 140 from hooking the sandpaper 210 and the sanding disc 200 when the tearing piece 140 is inserted between the sandpaper 210 and the sanding disc 200, thereby ensuring that the tearing piece 140 is smoothly inserted.

[0077] In one embodiment of the present disclosure, the tear sheet 140 may be made of a flexible material, such as but not limited to a flexible metal material.

[0078] like Figure 5 As shown, in one embodiment of the present disclosure, the cutter head 122 may be wedge-shaped, and the blade 1221 of the cutter head 122 may extend along the second direction Y. In other words, the extension direction of the blade 1221 is parallel to the opening direction of the second end 142 opening 1312 of the guide channel, that is, the extension direction of the tearing piece 140 from the second end 142 opening 1312 is parallel to the extension direction of the blade 1221. Through the above design, when the hole-breaking knife breaks the sandpaper 210, the wedge-shaped structure of the cutter head 122 can expand the pores of the sandpaper 210, so that the two tearing pieces 140 can be better extended.

[0079] like Figure 1 and Figure 2As shown, in one embodiment of the present disclosure, the first driving mechanism may be a driving cylinder 150. Specifically, the driving cylinder 150 includes a cylinder body 151 and a telescopic rod 152, the cylinder body 151 is disposed on the carrier 110, and the telescopic rod 152 extends along the first direction X and can be telescoped from a side of the cylinder body 151 close to the hole cutter 120. On this basis, one end of the telescopic rod 152 extending out of the cylinder body 151 is connected to an adapter plate 153, and the adapter plate 153 has an adapter portion 1531 extending along the first direction X, and the first ends 141 of the two tearing pieces 140 are commonly connected to the adapter portion 1531. Through the above design, the present disclosure does not need to bend the first end 141 of the tearing piece 140, but can use the adapter 1531 to connect the first end 141, and can use the feature of the adapter 1531 being unrestricted in the first direction X to design a larger connection area between the first end 141 and the adapter 1531 in the first direction X, thereby strengthening the connection effect between the telescopic rod and the tearing piece 140. In some embodiments, the first driving mechanism may also use other driving devices, such as a motor, an electric push rod, a driving screw mechanism, etc., and is not limited to this embodiment.

[0080] In one embodiment of the present disclosure, in order to realize the movement of the carrier 110 along the first direction X, a second driving mechanism not shown in the drawings can be provided to drive the carrier 110. The second driving mechanism can be a cylinder, a motor, an electric push rod, a driving screw mechanism, etc.

[0081] It should be noted here that the sandpaper tearing devices shown in the drawings and described in this specification are only a few examples of the many types of sandpaper tearing devices that can adopt the principles of the present disclosure. It should be clearly understood that the principles of the present disclosure are by no means limited to any details or any components of the sandpaper tearing devices shown in the drawings or described in this specification.

[0082] In summary, the sandpaper tearing device 100 proposed in the present disclosure includes a carrier plate 110, a hole cutting knife 120, a guide structure 130, two tearing pieces 140 and a first driving mechanism. The carrier plate 110 can move along a first direction X. The hole cutting knife 120 includes a blade 121 and a blade head 122, wherein the blade 121 is disposed on the carrier plate 110 and extends out of the carrier plate 110 along the first direction X, and the blade head 122 is connected to the end of the blade 121. The guide structure 130 is disposed on the blade 121 and is provided with two guide channels, wherein the two ends of the guide channel are respectively a first end 141 opening 1311 and a second end 142 opening 1312, wherein the second end 142 opening 1312 is located between the first end 141 opening 1311 and the blade head 122. The opening directions of the two first ends 141 openings 1311 are respectively opposite to the blade head 122 along the first direction X, and the two second ends 142 openings 1312 are arranged correspondingly in the first direction X and the opening directions are opposite along the second direction Y. The two tearing pieces 140 are respectively inserted into the two guide channels, and the two ends of the tearing piece 140 are respectively a first end 141 and a second end 142. The first end 141 extends out of the opening 1311 of the first end 141 and extends along the first direction X, and the two first ends 141 are commonly connected to the first driving mechanism. The second end 142 can be extended and retracted from the opening 1312 of the second end 142 along the second direction Y. Through the above design, the present disclosure can realize that the tearing piece 140 is inserted from the middle of the sandpaper 210 between the sandpaper 210 and the grinding disc 200 for tearing, and the two guide channels of the guide structure 130 are used to realize the opposite extension and retraction of the two tearing pieces 140, thereby solving the problem that the existing solution adopts the solution of tearing off the edge of the sandpaper 210, which is difficult to tear and has a poor tearing effect, and is conducive to improving the efficiency and success rate of tearing off the sandpaper 210.

[0083] Based on the above detailed description of several exemplary embodiments of the sandpaper tearing device 100 proposed in the present disclosure, an exemplary embodiment of the automated grinding and polishing equipment proposed in the present disclosure will be described below.

[0084] According to one aspect of the present disclosure, an automated grinding and polishing device is provided, which includes a grinding and polishing mechanism and a sandpaper tearing device 100 proposed in the present disclosure and in the above-mentioned embodiment. The grinding and polishing mechanism includes a grinding disc 200, a side surface of the grinding disc 200 is provided with sandpaper 210, and a slot is provided in the middle of the grinding disc 200, and the slot is at least open to the disc surface provided with the sandpaper 210. The sandpaper tearing device 100 is used to automatically tear off the sandpaper 210 provided on the grinding disc 200.

[0085] It should be noted that the automated grinding and polishing equipment shown in the drawings and described in this specification are only a few examples of many types of automated grinding and polishing equipment that can adopt the principles of the present disclosure. It should be clearly understood that the principles of the present disclosure are by no means limited to any details or any components of the automated grinding and polishing equipment shown in the drawings or described in this specification.

[0086] In summary, the automated grinding and polishing equipment proposed in the present disclosure can improve the efficiency and success rate of tearing off the sandpaper 210 by adopting the sandpaper tearing device 100 proposed in the present disclosure, which is beneficial to improving the production efficiency of the grinding and polishing operation of the automated grinding and polishing equipment.

[0087] The exemplary embodiments of the sandpaper tearing device and the automated grinding and polishing equipment proposed in the present disclosure are described and / or illustrated in detail above. However, the embodiments of the present disclosure are not limited to the specific embodiments described herein. On the contrary, the components and / or steps of each embodiment can be used independently and separately from the other components and / or steps described herein. Each component and / or each step of an embodiment can also be used in combination with other components and / or steps of other embodiments. When introducing the elements / components / etc. described and / or illustrated herein, the terms "one", "one" and "above" are used to indicate the presence of one or more elements / components / etc. The terms "comprising", "including" and "having" are used to indicate the meaning of open inclusion and mean that in addition to the listed elements / components / etc., there may be other elements / components / etc. In addition, the terms "first" and "second" in the claims and the specification are used only as marks and are not numerical restrictions on their objects.

[0088] Although the sandpaper tearing device and the automated grinding and polishing equipment proposed by the present disclosure have been described according to different specific embodiments, those skilled in the art will recognize that the implementation of the present disclosure can be modified within the spirit and scope of the claims.

Claims

1. A sandpaper tearing device, used for automatically tearing off the sandpaper arranged on a grinding disc, wherein the sandpaper is arranged on one side of the grinding disc, a slot hole is arranged in the middle of the grinding disc, the slot hole is at least open to the disc surface where the sandpaper is arranged, and the sandpaper covers the slot hole; characterized in that: The sandpaper tearing device comprises a carrier plate, a hole cutting knife, a guide structure, two tearing blades and a first driving mechanism; The carrier plate can move along a first direction perpendicular to the surface of the grinding disc, and has a first edge, and the first edge extends along a second direction perpendicular to the first direction; The hole cutting knife comprises a blade body and a blade head, wherein the blade body is disposed on the carrier plate and extends out of the first edge along the first direction, and the blade head is connected to an end of the blade body extending out of the first edge; The guide structure is arranged on the blade body and is provided with two guide channels, the two ends of the guide channel are respectively a first port and a second port, the second port is located between the first port and the blade head; the opening directions of the two first ports are respectively away from the blade head along the first direction, and the two second ports are arranged correspondingly in the first direction and the opening directions are opposite along the second direction; The two tearing pieces are respectively arranged in the two guide channels, and the two ends of the tearing piece are respectively a first end and a second end; the first end extends out of the first port and extends along the first direction, and the two first ends are commonly connected to the first driving mechanism; the second end can be extended and retracted by the second port along the second direction; The first driving mechanism is disposed on the carrier plate, and can drive the two first ends to move synchronously along the first direction.

2. The sandpaper tearing device according to claim 1, characterized in that: Along a third direction perpendicular to the first direction and the second direction, the height of the blade head is greater than the height of the blade body, so that a receiving groove is formed on the side of the blade body facing away from the carrier plate; wherein the guide structure is at least partially received in the receiving groove.

3. The sandpaper tearing device according to claim 2, characterized in that: Along the third direction, a side of the blade head away from the carrier plate exceeds or is flush with a side of the guide channel away from the blade body.

4. The sandpaper tearing device according to claim 2, characterized in that: The guide channel includes a first channel and a second channel, the first channel extends along the first direction, the second channel extends along the second direction, the first channel and the second channel are connected at one end by a bend, the other end of the first channel is the first port, and the other end of the second channel is the second port; wherein a portion of an end surface of the blade head facing the carrier plate in the third direction facing away from the carrier plate and extending beyond the blade body forms a first groove wall of the accommodating groove, and a portion of the guide structure provided with the second channel is provided at the first groove wall.

5. The sandpaper tearing device according to claim 1, characterized in that: The guide structure includes two guide units, and the two guide channels are respectively arranged on the two guide units; wherein, the guide unit includes a first part and a second part, the first part extends along the first direction, the second part extends along the second direction, each end of the first part and the second part is bent and connected, the first port is arranged on the other end surface of the first part, and the second port is arranged on the other end surface of the second part.

6. The sandpaper tearing device according to claim 5, characterized in that: The first part includes a main body part and a mounting part, one end of the main body part is connected to the second part, one end of the mounting part is connected to the other end of the main body part, and the first port is arranged on the other end surface of the mounting part; wherein, along the second direction, the width of the mounting part is greater than the width of the main body part, and the guide unit is arranged on the carrier via the mounting part.

7. The sandpaper tearing device according to claim 6, characterized in that: At least a portion of the mounting portion overlaps with an orthographic projection of a portion of the blade body on the carrier plate, and the mounting portion and the blade body are jointly arranged on the carrier plate via a connecting member.

8. The sandpaper tearing device according to claim 5, characterized in that: The two guide units have the same structure and are arranged in mirror image along the second direction, so that the two guide channels are arranged symmetrically about a symmetry axis extending along the first direction.

9. The sandpaper tearing device according to claim 1, characterized in that: The second end of the tear sheet is wedge-shaped or arc-shaped; and / or The cutter head is wedge-shaped, and the cutting edge of the cutter head extends along the second direction.

10. An automated grinding and polishing device, characterized in that: It comprises a grinding and polishing mechanism and a sandpaper tearing device as claimed in any one of claims 1 to 9; the grinding and polishing mechanism comprises a grinding disc, a side surface of the grinding disc is provided with sandpaper, a slot hole is provided in the middle of the grinding disc, and the slot hole is at least open to the disc surface provided with sandpaper; the sandpaper tearing device is used for automatically tearing off the sandpaper provided on the grinding disc.

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