Polishing head, polishing mechanism and polishing equipment

Abstract

The utility model discloses a polishing head, a polishing mechanism and polishing equipment, the polishing head comprises a base, a pneumatic driving part, a mounting bottom plate and a bearing part, the pneumatic driving part is arranged on the base; the mounting bottom plate is slidably arranged on the base, and the pneumatic driving part is in transmission connection with the mounting bottom plate and used for driving the mounting bottom plate to slide back and forth; the bearing part is arranged on the side, back on to the pneumatic driving part, of the mounting bottom plate and is provided with a tip part used for loading abrasive paper, and the tip part is used for guiding the abrasive paper to form a curved surface polishing area at the corresponding position. The bearing part is provided with a tip part, the abrasive paper wraps the tip part, in this way, the abrasive paper forms a curved surface polishing area at the position corresponding to the tip part so that the tip part of the polishing head can stretch into the inner side of the inner curved surface, and therefore the abrasive paper wrapping the tip part can be attached to the inner curved surface; and the inner curved surface of the workpiece can be fully polished.

Description

Technical Field

[0001] The utility model relates to the technical field of workpiece grinding, in particular to a grinding head, a grinding mechanism and a grinding device. Background Art

[0002] In the related art, during the grinding process of the workpiece surface, a pneumatic driving part is usually used to drive a bearing plate to reciprocate, and the bearing plate drives a consumable on its surface to reciprocate to grind the surface of the workpiece.

[0003] However, using the bearing plate to drive the consumable to reciprocate to grind the workpiece can usually only grind the surface of the workpiece with a relatively regular surface. For a more complex workpiece surface, the grinding effect of the above-mentioned grinding head is poor. Especially when grinding the inner curved surface of the workpiece, the grinding effect is significantly poor. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a grinding head, a grinding mechanism and a grinding device, which can grind a more complex surface, especially can grind the inner curved surface of the workpiece better.

[0005] In a first aspect, an embodiment of the present application provides a grinding head, including:

[0006] A base;

[0007] A pneumatic driving part, arranged on the base;

[0008] An installation bottom plate, slidably arranged on the base, the pneumatic driving part is in transmission connection with the installation bottom plate for driving the installation bottom plate to reciprocate;

[0009] A bearing part, arranged on the side of the installation bottom plate facing away from the pneumatic driving part, the bearing part has a pointed end, the bearing part is used for loading sandpaper, and the pointed end is used for guiding the sandpaper to form a curved surface grinding area at the corresponding position.

[0010] According to some embodiments of the utility model, the pointed end has two intersecting side surfaces, and an edge surface is formed at the intersecting position, and the edge surface is used for guiding the sandpaper to form a curved surface grinding area at the corresponding position;

[0011] Wherein, the pneumatic driving part drives the bearing part to reciprocate along the length direction of the edge surface through the installation bottom plate.

[0012] According to some embodiments of the utility model, the edge surface is provided with a rounded corner, and the range of the rounded corner is set between 0.1 mm and 0.8 mm.

[0013] According to some embodiments of the utility model, a grinding head includes:

[0014] Base;

[0015] Pneumatic driving member, disposed on the base;

[0016] Mounting base plate, slidably disposed on the base, the pneumatic driving member is drivingly connected to the mounting base plate for driving the mounting base plate to slide back and forth;

[0017] Carrying member, disposed on a side of the mounting base plate facing away from the pneumatic driving member, the carrying member has a pointed end;

[0018] Sandpaper, the sandpaper is loaded on the carrying member and wound around the pointed end, and a curved surface grinding area is formed at a position corresponding to the pointed end of the sandpaper.

[0019] According to some embodiments of the present invention, the grinding head further includes:

[0020] Two guide rail seats, fixedly disposed on the base and respectively located on both sides of the output shaft of the pneumatic driving member;

[0021] Sliding plate, disposed between the two guide rail seats and slidably connected to the two guide rail seats, the mounting base plate is connected to the sliding plate;

[0022] Wherein, the output shaft of the pneumatic driving member is drivingly connected to the sliding plate for driving the sliding plate to slide back and forth.

[0023] According to some embodiments of the present invention, one of the guide rail seat and the sliding plate is provided with a V-shaped chute, and the other is provided with a V-shaped convex portion, and the V-shaped convex portion is slidably disposed in the V-shaped chute.

[0024] According to some embodiments of the present invention, the grinding head further includes a transmission shaft member, the transmission shaft member includes a first shaft portion and a second shaft portion, wherein one end of the first shaft portion is connected to the output shaft of the pneumatic driving member, the other end of the second shaft portion is connected to the other end of the first shaft portion, and the central axes of the first shaft portion and the second shaft portion are eccentrically disposed;

[0025] The sliding plate is provided with a strip-shaped groove, the length direction of the strip-shaped groove is perpendicular to the sliding direction of the sliding plate, the second shaft portion passes through the strip-shaped groove and can relatively slide and relatively rotate with the sliding plate through the strip-shaped groove.

[0026] According to some embodiments of the present invention, the grinding head further includes a reducer, the output shaft of the pneumatic driving member is connected to the power input end of the reducer, and the power output end of the reducer is drivingly connected to the mounting base plate.

[0027] Second aspect, an embodiment of the present application provides a grinding mechanism, including:

[0028] A robotic arm;

[0029] The above-mentioned grinding head, the grinding head is arranged at the execution end of the robotic arm, and the robotic arm can adjust the angle of the carrier relative to the workpiece when the grinding head grinds the workpiece.

[0030] Third aspect, an embodiment of the present application provides a grinding device, including the above-mentioned grinding mechanism.

[0031] It can be seen from the above technical solutions that the embodiments of the present application have the following advantages: When the grinding head grinds a relatively complex surface, especially when grinding the inner curved surface of a workpiece, the carrier is provided with a pointed end portion, and the sandpaper is wrapped around the pointed end portion. With this setting, a curved surface grinding area is formed at the position corresponding to the pointed end portion of the sandpaper, so as to allow the pointed end portion of the grinding head to extend into the inner side of the inner curved surface, thereby fitting the sandpaper wrapped around the pointed end portion to the inner curved surface. More precisely, the pointed end portion fits the curved surface grinding area to the inner curved surface of the workpiece. With this setting, when the pneumatic drive drives the grinding head to reciprocate, the inner curved surface of the workpiece can be fully ground. Moreover, the pointed end portion can also make the curved surface grinding area fit various relatively complex surfaces of the workpiece to perform better grinding on the workpiece, which will not be elaborated one by one here. Description of the Drawings

[0032] Figure 1 It is a schematic diagram of the overall structure of the grinding head according to an embodiment of the present utility model;

[0033] Figure 2 It is an exploded structure diagram of the grinding head according to an embodiment of the present utility model;

[0034] Figure 3 It is an exploded structure diagram of the guiding assembly according to an embodiment of the present utility model;

[0035] Figure 4 It is an exploded structure diagram of the pneumatic driving member, the reducer and the transmission shaft member according to an embodiment of the present utility model.

[0036] Among them, the meanings of the reference numerals are as follows:

[0037] 100, base; 200, pneumatic driving member; 300, mounting base plate; 400, carrier; 410, pointed end portion; 411, edge surface; 500, guiding assembly; 510, guide rail seat; 511, V-shaped sliding groove; 520, sliding plate; 521, V-shaped protruding portion; 522, strip-shaped groove; 600, transmission shaft member; 610, first shaft portion; 620, second shaft portion; 630, eccentric bushing; 700, reducer; 800, sandpaper; 810, grinding area. Detailed Embodiments

[0038] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0039] In the description of the present utility model, it should be understood that with respect to the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, top, bottom, etc., is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0040] In the description of the present utility model, the meaning of several is more than one, and the meaning of multiple is more than two. Understandings such as greater than, less than, exceeding, etc. do not include the present number, and understandings such as above, below, within, etc. include the present number. If there is a description of first and second, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence relationship of the indicated technical features.

[0041] In the description of the present utility model, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the relevant technical field can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.

[0042] In the description of the present utility model, the descriptions referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0043] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0044] Please refer to

[0045] Please refer to Figures 1 to 2, which is a grinding head provided by an embodiment of the present invention, includes a base 100, a pneumatic driving member 200, a mounting base plate 300, and a carrier member 400. Among them, the pneumatic driving member 200 is disposed on the base 100, the mounting base plate 300 is slidably disposed on the base 100, and the driving portion of the pneumatic driving member 200 is in transmission connection with the mounting base plate 300 for driving the mounting base plate 300 to reciprocate slidably. The carrier member 400 is disposed on the side of the mounting base plate 300 facing away from the pneumatic driving member 200. The carrier member 400 has a pointed end portion 410 and is close to the edge of the mounting base plate 300. The carrier member 400 is used for loading a sandpaper 800, and the pointed end portion 410 is used for guiding the sandpaper 800 to form a curved surface grinding area 810 at a corresponding position.

[0046] Among them, the carrier member 400 has a pointed end portion 410. In one case, the carrier member 400 is integrally provided in a spike shape; in another case, a part of the carrier member 400 is provided in a spike shape.

[0047] In specific applications, the sandpaper 800 is wrapped around the pointed end portion 410, and the sandpaper 800 is guided to form a curved surface grinding area 810 at a position corresponding to the pointed end portion 410. The curved surface grinding area 810 or other areas are attached to the surface of the workpiece during application. Then, the pneumatic driving member 200 drives the mounting base plate 300 to reciprocate back and forth, and the mounting base plate 300 drives the carrier member 400 to reciprocate back and forth synchronously, and the curved surface grinding area 810 or other areas of the sandpaper 800 grind the surface of the workpiece to be ground.

[0048] It can be understood that when the grinding head grinds a relatively complex surface, especially when grinding the inner curved surface of the workpiece, the carrier member 400 is provided with a pointed end portion 410, and the sandpaper 800 is wrapped around the pointed end portion 410. In this way, the sandpaper 800 forms a curved surface grinding area 810 at a position corresponding to the pointed end portion 410, so that the pointed end portion 410 of the grinding head can extend into the inner side of the inner curved surface, and thus the sandpaper 800 wrapped around the pointed end portion 410 is attached to the inner curved surface. More precisely, the pointed end portion 410 attaches the curved surface grinding area 810 to the inner curved surface of the workpiece. In this way, when the pneumatic drive drives the grinding head to reciprocate, the inner curved surface of the workpiece can be fully ground. Moreover, the pointed end portion 410 can also make the curved surface grinding area 810 attach to various relatively complex surfaces of the workpiece for better grinding of the workpiece, which will not be elaborated one by one here.

[0049] In addition, during the process of grinding the inner curved surface by the grinding head, the angle of the grinding head is adjusted manually or automatically, so as to adjust the orientation angle of the pointed end portion 410 inside the inner curved surface, and further enable the sandpaper 800 on the surface of the pointed end portion 410 to fully contact the upper and lower arc-shaped areas of the inner curved surface, so that the grinding head can fully grind the inner curved surface.

[0050] For the sake of convenience in description, in the specific embodiments, the front - rear direction refers to the movement direction of the mounting base plate 300, the left - right direction refers to the direction perpendicular to the sliding direction of the mounting base plate 300, and both the front - rear direction and the left - right direction are perpendicular to the longitudinal direction of the overall structure of the grinding head.

[0051] In some embodiments, referring to Figure 1 and Figure 2 , the tip portion 410 is generally arranged in a V - shape. More precisely, the cross - section of the tip portion 410 is generally triangular. Thus, the tip portion 410 has two intersecting side surfaces, and an edge surface 411 is formed at the intersecting position. The edge surface 411 is used to guide the sandpaper 800 to form a curved surface grinding area 810 at the corresponding position. Among them, the pneumatic driving member 200 drives the carrier 400 to reciprocate along the length direction of the edge surface 411 through the mounting base plate 300.

[0052] Specifically, because the driving direction of the pneumatic driving member 200 on the carrier 400 is the same as the length direction of the edge surface 411 where the two side surfaces of the tip portion 410 intersect, when the pneumatic driving member 200 drives the carrier 400 to reciprocate back and forth along the length direction of the edge surface 411, the tip portion 410 of the carrier 400 drives the sandpaper 800 to reciprocate back and forth on the inner curved surface, and the curved surface grinding area 810 cooperates with other grinding areas 810 to fully grind the inner curved surface.

[0053] It should be emphasized that the tip portion 410 is generally arranged in a V - shape. More precisely, the cross - section of the tip portion 410 is generally triangular. With such an arrangement, the tip portion 410 has good load - bearing strength. Therefore, the carrier 400 can be used for a long time, and there is no need to worry about deformation of the tip portion 410, avoiding the need for staff to frequently replace the carrier 400.

[0054] In a possible embodiment, referring to Figure 1 and Figure 2 , the grinding head further includes a sandpaper 800. The sandpaper 800 is loaded on the carrier 400 and wound around the tip portion 410. The sandpaper 800 forms a curved surface grinding area 810 at the position corresponding to the tip portion 410. In application, the tip portion 410 fits the curved surface grinding area 810 onto the inner curved surface of the workpiece. The pneumatic driving member 200 drives the mounting base plate 300 to reciprocate back and forth, and the mounting base plate 300 drives the carrier 400 to reciprocate back and forth synchronously. The curved surface grinding area 810 of the sandpaper 800 grinds the surface of the workpiece to be ground.

[0055] In some embodiments, referring to Figure 1 and Figure 2, the edge surface 411 is provided with a rounded corner, and the range of the rounded corner is set between 0.1 mm and 0.8 mm. The specific size is set according to actual needs, such as 0.2 mm, 0.5 mm, 0.7 mm, etc. Specifically, the rounded corner is at least 2.5 mm to 3 mm smaller than the inner arc surface of the workpiece. With such a setting, a gap of 2.5 mm to 3 mm is reserved between the rounded corner and the inner arc surface of the workpiece. Also, since the thickness of the sandpaper 800 is approximately set in the gap of 2.5 mm to 3 mm, when the sandpaper 800 is wrapped around the guiding surface of the tip portion 410, the outer arc surface of the sandpaper 800 at the position of the edge surface 411 is close to or equal to the inner arc surface of the workpiece. Therefore, when the grinding head grinds the inner arc surface of the workpiece using the sandpaper 800, the sandpaper 800 can closely fit the inner arc surface of the workpiece, thus ensuring that the sandpaper 800 can better grind the inner arc surface of the workpiece.

[0056] Specifically, for example, the rounded corner is set at 0.1 mm, and the thickness of the sandpaper 800 is approximately 2.5 mm. Therefore, the outer arc surface of the sandpaper 800 at the position of the edge surface 411 is approximately 2.6 mm. Also, since the inner arc surface of the workpiece is approximately 2.8 mm, the outer arc surface of the sandpaper 800 is smaller than the inner arc surface of the workpiece, so that when the grinding head grinds the inner arc surface of the workpiece using the sandpaper 800, the sandpaper 800 can closely fit the inner arc surface of the workpiece, and thus the inner arc surface of the workpiece can be fully ground; in addition, when the rounded corner is set at 0.8 mm, the arc surface of the edge surface 411 is large enough, so that the curved surface grinding area 810 has a large enough curved surface, and further ensures sufficient contact with the inner curved surface of the workpiece to fully grind the inner curved surface of the workpiece.

[0057] In some embodiments, referring to Figure 1 and Figure 2 , the included angle between the two side surfaces of the tip portion 410 is set between 30 degrees and 50 degrees. For example, the included angle between the two side surfaces of the tip portion 410 is set at 30 degrees, 40 degrees or 50 degrees. Among them, the included angle between the two side surfaces of the tip portion 410 is not greater than 50 degrees. With such a setting, the width of the tip portion 410 is small enough, and the tip portion 410 can extend into the arc surface of the workpiece, so as to fully grind the inner arc surface of the workpiece; at the same time, the included angle between the two side surfaces of the tip portion 410 is at least set at 30 degrees. With such a setting, the width of the tip portion 410 is large enough, and the tip portion 410 has sufficient strength during application. Therefore, the carrier 400 can be used for a long time, and there is no need to worry about deformation of the tip portion 410, avoiding the need for staff to frequently replace the carrier 400.

[0058] In some embodiments, referring to Figure 1 and Figure 2, the carrier 400 is detachably connected to the mounting base 300, and the staff can replace the carrier 400 with different specifications for the mounting base 300 according to different working conditions. Among them, the guide fillets of the carriers 400 with different specifications may be set differently, and the carriers 400 with different guide fillets match the inner curved surfaces to be processed with different radian. For example, the larger the inner curved surface of the workpiece, the larger the guide fillet adapted by the carrier 400; the included angles between the two side surfaces of the carriers 400 with different specifications may also be set differently, and the carriers 400 with different included angles match the inner curved surfaces to be processed with different radian. For example, the larger the inner curved surface of the workpiece, the larger the included angle adapted by the carrier 400. Of course, the carriers 400 with different specifications may also have different settings for other parameters, such as the height of the tip 410 is set differently.

[0059] In some embodiments, referring to Figure 2 and Figure 3 , the grinding head further includes two guide rail seats 510 and a sliding plate 520. Among them, the two guide rail seats 510 are fixedly arranged on the base 100 and are respectively located on the left and right sides of the output shaft of the pneumatic driving member 200. The sliding plate 520 is arranged between the two guide rail seats 510 and is slidably connected to the two guide rail seats 510. The mounting base 300 is connected to the side of the sliding plate 520 away from the pneumatic driving member 200. Among them, the output shaft of the pneumatic driving member 200 is in transmission connection with the sliding plate 520 and is used to drive the sliding plate 520 to slide back and forth. For example, the pneumatic driving member 200 can drive the sliding plate 520 to slide back and forth by using a crank and connecting rod mechanism. Of course, the pneumatic driving member 200 can also use other transmission mechanisms to drive the sliding plate 520 to reciprocate.

[0060] In specific applications, the pneumatic driving member 200 drives the sliding plate 520 to reciprocate back and forth along the guide rail seat 510. The sliding plate 520 drives the mounting base 300 to reciprocate synchronously, thereby driving the carrier 400 to reciprocate synchronously to polish the surface of the workpiece. It can be understood that during the process of the pneumatic driving member 200 driving the sliding plate 520 to reciprocate back and forth, the two guide rail seats 510 limit the left and right sides of the sliding plate 520, thereby ensuring the accuracy and stability of the sliding plate 520 during sliding, and further ensuring that the pneumatic driving member 200 accurately drives the carrier 400 to slide back and forth.

[0061] In addition, the guide rail seat 510 and the sliding plate 520 adopt the above connection method, and the thickness of the guiding component 500 composed of the guide rail seat 510 and the sliding plate 520 is small, saving the occupied space of the guiding component 500 and avoiding the large overall occupied space of the grinding head.

[0062] In a possible embodiment, V-shaped sliding grooves 511 are provided on the opposite side portions of the two guide rail seats 510, and V-shaped protruding portions 521 are provided on the opposite sides of the sliding plate 520. One V-shaped protruding portion 521 is slidably connected to the V-shaped sliding groove 511 of one guide rail seat 510; the other V-shaped protruding portion 521 is slidably connected to the V-shaped sliding groove 511 of the other guide rail seat 510. Thus, the sliding plate 520 is slidably connected between the two guide rail seats 510. Alternatively, the V-shaped protruding portions 521 are provided on the opposite side portions of the two guide rail seats 510, the V-shaped sliding grooves 511 are provided on the opposite sides of the sliding plate 520, and the V-shaped protruding portions 521 are slidably arranged in the V-shaped sliding grooves 511. Thus, the sliding plate 520 is slidably connected between the two guide rail seats 510. In other possible embodiments, other shaped protruding portions and sliding grooves may also be used, and the sliding plate 520 can also be slidably connected between the two guide rail seats 510.

[0063] It can be understood that the V-shaped protruding portions 521 and the V-shaped sliding grooves 511 are used for positioning between the guide rail seat 510 and the sliding plate 520. With such a setting, the guide rail seat 510 accurately positions the sliding plate 520, so as to ensure that the pneumatic driving member 200 accurately drives the carrier 400 to reciprocate slidably through the sliding plate 520, and to ensure the stability of the sliding plate 520 during sliding, so as to ensure that the carrier 400 stably outputs power.

[0064] In order to realize the pneumatic driving member 200 to drive the sliding plate 520 to reciprocate back and forth, in some embodiments, referring to Figure 3 And Figure 4 , the grinding head further includes a transmission shaft member 600. The transmission shaft member 600 includes a first shaft portion 610 and a second shaft portion 620. Wherein, one end of the first shaft portion 610 is connected to the output shaft of the pneumatic driving member 200, and the pneumatic driving member 200 drives the first shaft portion 610 to rotate around its central axis; one end of the second shaft portion 620 is connected to the other end of the first shaft portion 610, and the central axis of the first shaft portion 610 and the central axis of the second shaft portion 620 are eccentrically arranged. At the same time, the sliding plate 520 is provided with a strip-shaped groove 522. The length direction of the strip-shaped groove 522 is perpendicular to the sliding direction of the sliding plate 520. The second shaft portion 620 passes through the strip-shaped groove 522 and can relatively slide and rotate with the sliding plate 520 through the strip-shaped groove 522.

[0065] Specifically, the pneumatic driving member 200 drives the first shaft portion 610 to rotate, and the first shaft portion 610 drives the second shaft portion 620 to make an eccentric circular motion relative to the first shaft portion 610. During the circumferential movement of the second shaft portion 620, the second shaft portion 620 slides left and right and rotates relative to the sliding plate 520 in the strip-shaped groove 522, and pulls the sliding plate 520 to reciprocate back and forth. The sliding plate 520 drives the carrier 400 to move back and forth synchronously through the mounting base plate 300, and the abrasive paper 800 loaded on the carrier 400 grinds the surface of the workpiece.

[0066] In a further embodiment, the transmission shaft member 600 further includes an eccentric bushing 630. The eccentric bushing 630 is rotatably sleeved on the outer side of the second shaft portion 620. The eccentric bushing 630 is inserted into the strip-shaped groove 522 and relatively slides along the strip-shaped groove 522 with respect to the sliding plate 520. Moreover, the second shaft portion 620 can also relatively rotate with respect to the sliding plate 520 by means of the eccentric bushing.

[0067] It can be understood that through the arrangement of the eccentric bushing 630, when the second shaft portion 620 pulls the sliding plate 520 to reciprocate, the second shaft portion 620 can relatively rotate with respect to the sliding plate 520 by means of the eccentric bushing 630, so that the second shaft portion 620 can more smoothly pull the sliding plate 520 to reciprocate back and forth, thereby reducing the frictional damage between the transmission shaft member 600 and the sliding plate 520.

[0068] In some embodiments, referring to Figures 2 to 4 , the grinding head further includes a speed reducer 700. The output shaft of the pneumatic driving member 200 is connected to the power input end of the speed reducer 700. The power output end of the speed reducer 700 is in transmission connection with the mounting base plate 300. More precisely, the power output end of the speed reducer 700 is connected to the first shaft portion 610 of the transmission shaft member 600. The transmission shaft member 600 is connected to the mounting base plate 300 through the sliding plate 520, thereby realizing the transmission connection between the speed reducer 700 and the mounting base plate 300.

[0069] Therefore, when driving the carrier 400 to reciprocate back and forth, the pneumatic driving member 200 drives the transmission shaft member 600 to rotate through the speed reducer 700, and the transmission shaft member 600 drives the carrier 400 to move through the sliding plate 520 and the mounting base plate 300. It can be understood that when the pneumatic driving member 200 drives the transmission shaft member 600 to rotate at a high speed, the speed reducer 700 can effectively reduce the rotation speed of the pneumatic driving member 200. For example, the speed reducer 700 can usually reduce the speed of the pneumatic driving member 200 by three times, thereby effectively improving the power of the grinding head during grinding and avoiding the problem of jamming of the grinding head during the grinding process.

[0070] The present application also discloses a grinding mechanism. Referring to Figure 1 , it includes a robotic arm and the above-mentioned grinding head. Among them, the grinding head is arranged at the movable end of the robotic arm, and the robotic arm can adjust the angle of the carrier 400 relative to the workpiece when the grinding head grinds the workpiece.

[0071] In specific applications, during the process of the grinding head grinding the inner curved surface of the workpiece, the robotic arm adjusts the angle of the grinding head, thereby adjusting the orientation angle of the tip portion 410 on the inner curved surface of the workpiece, so that the sandpaper 800 on the surface of the tip portion 410 can fully contact the upper and lower arc regions of the inner curved surface of the workpiece, and further ensure that the grinding head can fully grind the inner curved surface of the workpiece.

[0072] Of course, the robotic arm can adjust the angle of the grinding head relative to the workpiece and cooperate with the V-shaped design of the tip portion 410, so that the tip portion 410 can be flexibly adapted to various surfaces of the workpiece during application, and further enable the grinding head to grind the surface of more complex workpieces and adapt to various surfaces of workpieces to be ground.

[0073] This application also discloses a grinding device. Referring to Figure 1 , it includes the above-mentioned grinding mechanism.

[0074] It can be understood that when the grinding device adopts the above-mentioned grinding mechanism, in specific applications, the robotic arm can adjust the angle of the grinding head relative to the workpiece and cooperate with the V-shaped design of the tip portion 410, so that the tip portion 410 can be flexibly adapted to various surfaces of the workpiece during application, and further enable the grinding head to grind the surface of more complex workpieces. As can be seen from the above, the grinding mechanism can be applied to the grinding of various workpiece surfaces. Therefore, the grinding device can grind various types of workpieces.

[0075] The technical means disclosed in the solution of the present utility model are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present utility model.

Claims

1. A grinding head, characterized in that, Comprising: Base; Pneumatic driving member, disposed on the base; Mounting base plate, slidably disposed on the base, the pneumatic driving member is in transmission connection with the mounting base plate for driving the mounting base plate to reciprocate; Carrier member, disposed on a side of the mounting base plate facing away from the pneumatic driving member, the carrier member has a pointed end portion, the carrier member is used for loading abrasive paper, and the pointed end portion is used for guiding the abrasive paper to form a curved surface grinding area at a corresponding position.

2. The grinding head according to claim 1, wherein The pointed end portion has two intersecting side surfaces, and an edge surface is formed at the intersecting position, and the edge surface is used for guiding the abrasive paper to form a curved surface grinding area at a corresponding position; Wherein, the pneumatic driving member drives the carrier member to reciprocate along the length direction of the edge surface through the mounting base plate.

3. The grinding head according to claim 2, characterized in that, The edge surface is provided with a rounded corner, and the range of the rounded corner is set between 0.1 mm and 0.8 mm.

4. A grinding head, characterized in that, Comprising: Base; Pneumatic driving member, disposed on the base; Mounting base plate, slidably disposed on the base, the pneumatic driving member is in transmission connection with the mounting base plate for driving the mounting base plate to reciprocate; Carrier member, disposed on a side of the mounting base plate facing away from the pneumatic driving member, the carrier member has a pointed end portion; Abrasive paper, the abrasive paper is loaded on the carrier member and wound around the pointed end portion, and the abrasive paper forms a curved surface grinding area at a position corresponding to the pointed end portion.

5. The grinding head according to claim 4, characterized in that, The grinding head further comprises: Two guide rail seats, fixedly disposed on the base and respectively located on both sides of the output shaft of the pneumatic driving member; Sliding plate, disposed between the two guide rail seats and slidably connected to the two guide rail seats, the mounting base plate is connected to the sliding plate; Wherein, the output shaft of the pneumatic driving member is in transmission connection with the sliding plate for driving the sliding plate to reciprocate.

6. The grinding head according to claim 5, wherein, One of the guide rail seat and the sliding plate is provided with a V-shaped chute, and the other is provided with a V-shaped protrusion, and the V-shaped protrusion is slidably disposed in the V-shaped chute.

7. The grinding head according to claim 5, characterized in that, The grinding head further comprises a transmission shaft member, the transmission shaft member includes a first shaft portion and a second shaft portion, wherein, one end of the first shaft portion is connected to the output shaft of the pneumatic driving member, the other end of the second shaft portion is connected to the other end of the first shaft portion, and the central axes of the first shaft portion and the second shaft portion are eccentrically disposed; The sliding plate is provided with a strip-shaped groove, the length direction of the strip-shaped groove is perpendicular to the sliding direction of the sliding plate, the second shaft portion passes through the strip-shaped groove and can relatively slide and rotate relative to the sliding plate through the strip-shaped groove.

8. The grinding head according to claim 4, characterized in that, The grinding head further comprises a reducer, the output shaft of the pneumatic driving member is connected to the power input end of the reducer, and the power output end of the reducer is in transmission connection with the mounting base plate.

9. A polishing mechanism, characterized in that, Comprising: Robot arm; The grinding head according to any one of claims 1 to 8, the grinding head is disposed at the movable end of the robot arm, and the robot arm is used for adjusting the angle of the carrier member relative to the workpiece when the grinding head grinds the workpiece.

10. A polishing device, characterized in that, Comprising the grinding mechanism according to claim 9.

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