Polishing equipment

Abstract

The polishing equipment comprises a limiting assembly, a feeding assembly and a polishing assembly, the limiting assembly comprises a plurality of guiding pieces and a plurality of limiting pieces which are sequentially and alternately arranged in the first direction, the guiding pieces and the limiting pieces are matched to form a machining channel extending in the first direction, a first machining station is formed between every two adjacent guiding pieces, and a second machining station is formed between every two adjacent limiting pieces. A second machining position is formed between every two adjacent limiting pieces, and the first machining positions and the second machining positions are located on the two sides of the machining channel in the second direction correspondingly; the feeding assembly is used for conveying workpieces into the machining channel. The polishing assembly comprises a first polishing piece and a second polishing piece which are arranged on the two sides of the limiting assembly in the second direction correspondingly, the first polishing piece is used for polishing the surface of the workpiece exposed to the first machining position, and the second polishing piece is used for polishing the surface of the workpiece exposed to the second machining position. The polishing equipment can perform double-sided polishing treatment on the workpiece without being matched with a clamping device.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical processing technical field especially, relates to a kind of polishing equipment. BACKGROUND

[0002] Polishing equipment is generally driven by motor to install the polishing disc on polishing machine high-speed rotation, to realize the polishing treatment to the workpiece to be processed.For some workpieces to be processed, double-sided polishing treatment or even multi-surface polishing treatment is required, but the existing polishing equipment cannot directly realize double-sided polishing, or some polishing equipment can realize double-sided polishing, but need to cooperate with complex clamping device to realize, not only operation is complex, but also cost is high.

[0003] Therefore, it is necessary to improve one or more problems existing in the above-mentioned related technical solutions.

[0004] It should be noted that this section aims to provide background or context for the technical solutions of the utility model as stated in the claims. The description in this section is not admitted as prior art merely because it is included in this section. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of polishing equipment, without cooperating with clamping device, double-sided polishing treatment to workpiece can be realized.

[0006] According to the utility model provides a kind of polishing equipment, comprising:

[0007] Limiting component, including the multiple guide pieces and multiple limiting pieces that are sequentially arranged alternately along the first direction, the guide piece and the limiting piece cooperate to form the processing channel extending along the first direction, the first processing site is formed between the adjacent two guide pieces, the second processing site is formed between the adjacent two limiting pieces, the first processing site and the second processing site are located at the two sides of the processing channel along the second direction respectively, and the first direction and the second direction are arranged at an angle;

[0008] Feeding assembly, for conveying workpiece into the processing channel;

[0009] Polishing component, including the first polishing piece and the second polishing piece respectively arranged on the two sides of the limiting component along the second direction, the first polishing piece is used to polish the surface of workpiece exposed at the first processing site, and the second polishing piece is used to polish the surface of workpiece exposed at the second processing site.

[0010] Preferably, the guide groove is provided on the one side surface of the guide piece along the second direction, the guide groove is provided through along the first direction, the limiting piece is located at the one side of the guide piece along the second direction, and covers part of the slot of the guide groove to form the processing channel.

[0011] Preferably, the guide member is in the shape of a long strip and extends along the first direction, and the guide member is provided with a relief portion along the first direction towards the end of the first processing position.

[0012] Preferably, the limiting member is in the shape of a flat plate and extends along the first direction, and a side surface of the limiting member along the second direction is in abutment with part of the slot edge of the guide slot.

[0013] Preferably, the limiting assembly further comprises a bottom support, the guide member is adjustably arranged on the bottom support along the first direction and the second direction, and the limiting member is adjustably arranged on the bottom support along the first direction.

[0014] Preferably, the feeding assembly comprises a feeding rack and a pushing member, the feeding rack is used for placing workpieces, the pushing member and the limiting assembly are respectively arranged on both sides of the feeding rack along the first direction, and the pushing member is movably arranged along the first direction and can abut and drive the workpieces at the feeding rack to move into the processing channel.

[0015] Preferably, the feeding rack comprises a feeding base and a standby rack and a reference member arranged on the feeding base.

[0016] The feeding base has a feeding area, the standby rack has a standby area for placing workpieces, and along a third direction, the standby area is above the feeding area.

[0017] The reference member is arranged on the feeding base and extends along the first direction, and is used for abutting the workpieces falling from the standby area to the feeding area.

[0018] The third direction is the height direction of the feeding rack, and the first direction, the second direction and the third direction are perpendicular to each other.

[0019] Preferably, the standby rack comprises a side stand and two material blocking members, the side stand is arranged on the feeding rack, and the two material blocking members are arranged on the feeding rack along the first direction and cooperatively form the standby area.

[0020] Preferably, the first polishing member and the second polishing member are respectively provided with a plurality of polishing members, and the plurality of first polishing members and the plurality of second polishing members are respectively arranged along the first direction.

[0021] Preferably, the first polishing member and the second polishing member each comprise a support seat, a driving member and a grinding wheel, the support seat is adjustably arranged along the second direction, the driving member is arranged on the support seat, and the grinding wheel is connected to the output end of the driving member.

[0022] The technical scheme provided by the utility model can have the following beneficial effects:

[0023] In the utility model, the processing channel extending along the first direction is formed by the guide piece and the limiting piece of the limiting assembly, and is used for accommodating the workpiece during polishing processing, so that the two surfaces of the workpiece along the second direction are exposed at the first processing position and the second processing position respectively; the workpiece is conveyed into the processing channel by the feeding assembly, and then the first polishing piece of the polishing assembly can polish the surface of the workpiece exposed at the first processing position, and the second polishing piece can polish the surface of the workpiece exposed at the second processing position, so that the workpiece can be polished on both sides without the cooperation of the clamping device. BRIEF DESCRIPTION OF DRAWINGS

[0024] The drawings incorporated into the specification and forming a part thereof, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the disclosure. It is clear that the drawings described below are only some embodiments of the present disclosure, and other drawings can be obtained according to these drawings without creative labor for those skilled in the art.

[0025] Figure 1 The structure of the polishing equipment in the embodiment of the utility model is shown Figure 1 ;

[0026] Figure 2 The structure of the limiting assembly and the feeding assembly of the polishing equipment in the embodiment of the utility model is shown Figure 1 ;

[0027] Figure 3 The structure of the limiting assembly and the feeding assembly of the polishing equipment in the embodiment of the utility model is shown Figure 2 ;

[0028] Figure 4 The structure of the polishing equipment in the embodiment of the utility model is shown Figure 2 ;

[0029] Figure 5 The structure of the polishing equipment in the embodiment of the utility model is shown Figure 3 .

[0030] Label: 100, limiting assembly; 110, guide; 111, guide groove; 112, avoiding part; 113, first connecting hole; 120, limiting piece; 121, second connecting hole; 130, bottom support; 131, first mounting hole; 132, second mounting hole; 1001, first processing position; 1002, second processing position; 200, feeding assembly; 210, feeding rack; 211, feeding base; 2110, feeding area; 2111, reinforcing support; 212, waiting rack; 2121, side stand; 2122, material blocking piece; 21221, accommodating groove; 2120, waiting area; 213, reference piece; 221, push rod; 222, output end of air cylinder; 310, first polishing piece; 320, second polishing piece; 3001, support seat; 3002, driving piece; 3003, grinding wheel; 3004, guide rail; 400, work rack; 410, support block. DETAILED DESCRIPTION

[0031] Example implementations will now be described more fully with reference to the accompanying drawings. Example implementations may, however, be implemented in many different forms and should not be construed as limited to the examples set forth herein; rather, these implementations are provided so that this disclosure will be thorough and complete, and will fully convey the scope of example implementations to those skilled in the art. The described features, structures, or characteristics can be combined in one or more implementations.

[0032] In addition, the drawings are to be considered in all respects as illustrative and not restrictive; the examples can be embodied in many other forms notwithstanding the patentity of the drawings. Identical reference numerals have been used on the drawings to denote identical or similar elements and no further description will be made with respect to them. Some of the block diagrams shown in the drawings are functional entities, which do not necessarily have to correspond to physically or logically independent entities.

[0033] In the present example implementation, a polishing device is first provided. Referring to Figures 1 to 5As shown in the first aspect, the polishing device comprises a limiting assembly 100, a feeding assembly 200 and a polishing assembly. The limiting assembly 100 comprises a plurality of guide members 110 and a plurality of limiting members 120 arranged alternately along a first direction, the guide members 110 and the limiting members 120 cooperate to form a processing channel extending along the first direction, two adjacent guide members 110 form a first processing position 1001, two adjacent limiting members 120 form a second processing position 1002, the first processing position 1001 and the second processing position 1002 are respectively located on two sides of the processing channel along a second direction, the first direction and the second direction are arranged at an angle; the feeding assembly 200 is used for conveying a workpiece into the processing channel; the polishing assembly comprises a first polishing member 310 and a second polishing member 320 arranged on two sides of the limiting assembly 100 along the second direction, the first polishing member 310 is used for polishing a surface of the workpiece exposed at the first processing position 1001, and the second polishing member 320 is used for polishing a surface of the workpiece at the second processing position 1002.

[0034] It should be understood that, with reference to Figure 1 , the first direction is as shown by an arrow ab in Figure 1 , and the second direction is as shown by an arrow cd in Figure 1 .

[0035] It should also be noted that, in the embodiment, the plurality of guide members 110 and the plurality of limiting members 120 arranged alternately along the first direction are limited to the arrangement of the guide members 110 and the limiting members 120, and the connection manner between the guide members 110 and the limiting members 120 is not limited. It should also be noted that the projections of the guide members 110 and the limiting members 120 in the first direction do not coincide, so as to ensure that the guide members 110 and the limiting members 120 can cooperate to form the processing channel extending along the first direction.

[0036] Through the above polishing device, the processing channel extending along the first direction formed by the guide members 110 and the limiting members 120 of the limiting assembly 100 is used for accommodating the workpiece during polishing processing, so that the two surfaces of the workpiece along the second direction are respectively exposed at the first processing position 1001 and the second processing position 1002; the feeding assembly 200 is used for conveying the workpiece into the processing channel, and then the first polishing member 310 of the polishing assembly can polish the surface of the workpiece exposed at the first processing position 1001, and the second polishing member 320 can polish the surface of the workpiece exposed at the second processing position 1002, without the cooperation of the clamping device, the double-sided polishing processing of the workpiece can be realized.

[0037] In the following, the above-mentioned polishing device in the example embodiment will be described in more detail with reference to Figures 1 to 5 .

[0038] In one embodiment, with reference to Figure 1As shown, the polishing device in the embodiment also has a workbench 400, and the limiting assembly 100, the feeding assembly 200 and the polishing assembly are all arranged on the workbench 400. The limiting assembly 100 and the feeding assembly 200 are arranged in sequence along the first direction, and the first polishing piece 310 and the second polishing piece 320 of the polishing assembly are arranged on the two sides of the limiting assembly 100 along the second direction respectively. Through the above arrangement, the workpiece can be processed in a flow line polishing manner, which is not only convenient to operate, but also has high work efficiency.

[0039] Optionally, referring to Figures 1 to 3 As shown, the guide piece 110 is provided with a guide groove 111 on one side surface thereof along the second direction, and the guide groove 111 is arranged through along the first direction. The limiting piece 120 is located on one side of the guide piece 110 along the second direction and covers part of the groove of the guide groove 111 to form a processing channel. Through the guide groove 111 arranged on the guide piece 110, the guide piece 110 and the limiting piece 120 cooperate to form the processing channel, which can limit the workpiece during conveying and ensure that the workpiece can only be conveyed in the first direction during polishing processing and cannot shake in the second direction, thereby ensuring the polishing effect.

[0040] Further, referring to Figures 1 to 3 As shown, the guide piece 110 is in a strip shape and extends along the first direction. The guide piece 110 is provided with an avoiding part 112 at the end thereof along the first direction and towards the first processing position 1001. Through the avoiding part 112, the end of the guide piece 110 can avoid the first polishing piece 310 near the first processing position 1001, so that the first polishing piece 310 can contact the surface of the workpiece.

[0041] Optionally, the avoiding part 112 is arranged on one side surface of the guide piece 110 away from the limiting piece 120 along the second direction. The avoiding part 112 can be a bevel surface or an arc surface, and the distance between the avoiding part 112 and the limiting piece 120 along the second direction decreases in the direction towards the first processing position 1001.

[0042] Optionally, referring to Figures 1 to 3 As shown, the limiting piece 120 is in a flat plate shape and extends along the first direction. One side surface of the limiting piece 120 along the second direction is in abutment with part of the groove edge of the guide groove 111 to cover part of the groove of the guide groove 111. Through the arrangement of the limiting piece 120 in a flat plate shape and extending along the first direction, the cost can be saved, and the space occupied by the limiting piece 120 can be reduced.

[0043] In one embodiment, the limiting assembly 100 further comprises a bottom support 130, the guide 110 is adjustably arranged on the bottom support 130 along the first direction and the second direction, and the limiting piece 120 is adjustably arranged on the bottom support 130 along the first direction. By adjustably arranging the guide 110 on the bottom support 130 along the first direction and adjustably arranging the limiting piece 120 on the bottom support 130 along the first direction, the space size of the first machining position 1001 and the second machining position 1002 in the first direction is adjusted, so as to control the polishing effect; by adjustably arranging the guide 110 on the bottom support 130 along the second direction, the space size of the machining channel in the second direction is adjusted to adapt to workpieces of different specifications.

[0044] Optionally, as shown in Figures 1 to 3 The bottom support 130 is spaced apart along the second direction and provided with a plurality of rows of first mounting holes 131, and the first mounting holes 131 in each row of first mounting holes 131 are arranged along the first direction and spaced apart from each other; the guide 110 is spaced apart along the first direction and provided with a plurality of first connecting holes 113.

[0045] When the guide 110 is mounted on the bottom support 130, the plurality of first connecting holes 113 on each guide 110 are aligned with at least part of the first mounting holes 131 in any row, and then the guides 110 are connected and fixed by means of detachable fasteners.

[0046] Optionally, as shown in Figures 1 to 3 The bottom support 130 is spaced apart along the first direction and provided with a plurality of second mounting holes 132, and the limiting piece 120 is spaced apart along the first direction and provided with a plurality of second connecting holes 121.

[0047] When the limiting piece 120 is mounted on the bottom support 130, the plurality of second connecting holes 121 on each limiting piece 120 are aligned with at least part of the second mounting holes 132 on the bottom support 130, and then the limiting pieces 120 are connected and fixed by means of detachable fasteners.

[0048] Specifically, as shown in Figures 1 to 3 The guide 110 and the limiting piece 120 can be arranged three respectively, the three guides 110 are arranged along the first direction and spaced apart from each other on the bottom support 130, and the three limiting pieces 120 are arranged along the first direction and spaced apart from each other on the bottom support 130. In the first direction, the three guides 110 and the three limiting pieces 120 are arranged alternately in sequence, and the projections of the guides 110 and the limiting pieces 120 in the first direction do not coincide with each other. Along the first direction, a first machining position 1001 is formed between two adjacent guides 110, and a second machining position 1002 is formed between two adjacent limiting pieces 120, that is, the above-mentioned three guides 110 can cooperate to form two first machining positions 1001, and the three limiting pieces 120 can cooperate to form two second machining positions 1002.

[0049] In the second direction, the limiting member 120 fits against the side surface of the guide member 110 on which the guide groove 111 is provided to cover part of the notch of the guide groove 111, so that the guide member 110 and the limiting member 120 cooperate to form a processing channel extending along the first direction, ensuring that the workpiece can only be moved in the first direction during polishing processing and will not shake in the second direction, thereby ensuring the polishing effect.

[0050] In one embodiment, reference Figure 4 As shown, the loading assembly 200 includes a loading rack 210 and a pushing member. The loading rack 210 is used to place the workpiece. The pushing member and the limiting assembly 100 are respectively arranged on both sides of the loading rack 210 along the first direction, and the pushing member is movably arranged along the first direction, and can resist and drive the workpiece at the loading rack 210 to move into the processing channel, so that the two surfaces of the workpiece along the second direction are respectively exposed to the first processing position 1001 and the second processing position 1002.

[0051] For further reference, Figure 4 As shown, the loading rack 210 includes a loading base 211 and a material-waiting rack 212 and a reference member 213 provided on the loading base 211;

[0052] The loading base 211 has a loading area 2110, and the waiting rack 212 has a waiting area 2120 for placing workpieces. Along the third direction, the waiting area 2120 is located above the loading area 2110; and the loading area 2110 is connected to the processing channel so that the pushing member can push the workpiece at the loading area 2110 into the processing channel;

[0053] The reference member 213 is disposed on the loading base 211 and extends along the first direction, and is used to fit the workpiece dropped from the waiting area 2120 to the loading area 2110;

[0054] The third direction is the height direction of the loading rack 210. Figure 1 As shown by the arrows ef, the first direction, the second direction and the third direction are perpendicular to each other.

[0055] Through the arrangement of the above-mentioned loading base 211, waiting rack 212 and reference part 213, the workpiece stored on the waiting rack 212 can fall from the waiting area 2120 of the waiting rack 212 to the loading area 2110 of the loading base 211 under the action of gravity, and the reference part 213 is used to block the workpiece falling to the loading area 2110 in the second direction, ensuring that the workpiece only moves along the first direction under the action of the pushing member and is transported to the processing channel.

[0056] Optional, reference Figure 4As shown, the standby rack 212 includes a side stand 2121 and two material blocking members 2122, the side stand 2121 is arranged on the feeding rack 210, and the two material blocking members 2122 are arranged on the feeding rack 210 along the first direction and cooperatively form a standby area 2120.

[0057] Specifically, referring to Figure 4 As shown, the workpiece in the embodiment is in a strip shape, the material blocking member 2122 is also in a strip shape and extends along the third direction, the material blocking member 2122 is provided with a receiving groove 21221 on one side along the first direction, the receiving groove 21221 is provided through along the third direction, and the groove opening of the receiving groove 21221 faces the standby area 2120, and the receiving grooves 21221 on the two material blocking members 2122 are respectively used for accommodating two end portions of the workpiece. In addition, one end of the receiving groove 21221 along the third direction is ported towards the feeding area 2110, so as to ensure that the workpiece falls from the standby area 2120 to the feeding area 2110 smoothly.

[0058] It should be noted that the size of the receiving groove 21221 needs to be set to ensure that the plurality of workpieces are orderly arranged in the standby area 2120 along the third direction, and the workpieces can fall from the standby area 2120 to the feeding area 2110 under the action of gravity.

[0059] Optionally, the pushing member includes a cylinder and a push rod 221, one end of the push rod 221 is connected to the output end 222 of the cylinder, and the other end of the push rod 221 can abut and drive the workpiece at the feeding rack 210 to move into the machining channel.

[0060] Optionally, the workbench 400 is provided with a support block 410, and the push rod 221 is slidably arranged on the support block 410 along the first direction.

[0061] Optionally, the feeding base 211 is provided with a reinforcing support 2111, along the second direction, the reinforcing support 2111 and the reference member 213 are respectively located on the two sides of the side stand 2121, and the reinforcing support 2111 is connected to the side stand 2121, so as to enhance the connection strength between the side stand 2121 and the feeding base 211, and further improve the overall strength of the feeding rack 210.

[0062] Optionally, referring to Figure 5As shown, the first polishing piece 310 and the second polishing piece 320 are respectively provided with a plurality of polishing pieces, and the plurality of first polishing pieces 310 and the plurality of second polishing pieces 320 are respectively arranged along the first direction, wherein the plurality of first polishing pieces 310 correspond to the plurality of first machining positions 1001 formed by the plurality of guide pieces 110 one by one, and the plurality of second polishing pieces 320 correspond to the plurality of second machining positions 1002 formed by the plurality of limiting pieces 120 one by one. The plurality of first polishing pieces 310 can perform multiple polishing processes on the one side surface of the workpiece along the second direction, and the plurality of second polishing pieces 320 can perform multiple polishing processes on the other side surface of the workpiece along the second direction.

[0063] In one embodiment, with reference to Figure 5 As shown, the first polishing piece 310 and the second polishing piece 320 each include a support seat 3001, a driving piece 3002 and a grinding wheel 3003, the support seat 3001 is adjustably arranged along the second direction, the driving piece 3002 is adjustably arranged on the support seat 3001 along the third direction, and the grinding wheel 3003 is connected to the output end of the driving piece 3002. The support seat 3001 adjustably arranged along the second direction can adjust the grinding wheel 3003 along the second direction, so as to control the polishing degree of the grinding wheel 3003 on the surface of the workpiece, and facilitate to ensure that the two surfaces of the workpiece are polished to the same degree. In addition, the position of the driving piece 3002 can be adjusted along the third direction to adjust the position of the grinding wheel 3003 along the third direction, and then ensure that the grinding wheel 3003 is aligned with the polishing position of the workpiece.

[0064] Optionally, the workbench 400 is provided with a guide rail 3004, and the support seat 3001 is slidably connected with the guide rail 3004 along the second direction.

[0065] In summary, the polishing equipment provided in the embodiment can realize flow line polishing processing with high work efficiency under the cooperation of the limiting assembly 100, the feeding assembly 200 and the polishing assembly. In addition, the polishing assembly can realize double-sided polishing processing of the workpiece and multiple polishing processing of the same surface of the workpiece by cooperating with the limiting assembly 100 without the need of additional complex clamping devices, which is not only simple in operation, but also simple in overall structure of the limiting assembly 100, and is conducive to reducing the cost.

[0066] It should be understood that the orientation or positional relationship indicated by terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" in the above description are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0067] In addition, the terms "first", "second" are only for descriptive purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0068] In the embodiments of the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0069] In the embodiments of the present application, unless otherwise specifically defined and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0070] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means 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 application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Also, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and integrate different embodiments or examples described in the present specification.

[0071] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice in the art to which the application pertains. The specification and examples are to be regarded as illustrative only, and the true scope and spirit of the application is indicated by the appended claims.

Claims

1. A polishing apparatus characterized by comprising: The polishing assembly comprises a first polishing member and a second polishing member arranged on both sides of the limiting assembly along the second direction, the first polishing member is used for polishing the surface of the workpiece exposed at the first machining position, and the second polishing member is used for polishing the surface of the workpiece exposed at the second machining position. The guiding groove is arranged through along the first direction on one side surface of the guiding member along the second direction, and the limiting member is located on one side of the guiding member along the second direction and covers part of the slot of the guiding groove to form the machining channel. The guiding member is in a strip shape and extends along the first direction, and the end of the guiding member along the first direction towards the first machining position is provided with a avoiding part. The limiting member is in a flat plate shape and extends along the first direction, and one side surface of the limiting member along the second direction is in close contact with part of the slot edge of the guiding groove.

2. The polishing apparatus according to claim 1, wherein The limiting assembly further comprises a bottom support, the guiding member is adjustably arranged on the bottom support along the first direction and the second direction, and the limiting member is adjustably arranged on the bottom support along the first direction.

3. The polishing apparatus according to claim 2, wherein The feeding assembly comprises a feeding rack and a pushing member, the feeding rack is used for placing the workpiece, the pushing member and the limiting assembly are arranged on both sides of the feeding rack along the first direction respectively, and the pushing member is movably arranged along the first direction and can abut against and drive the workpiece at the feeding rack to move into the machining channel.

4. The polishing apparatus according to claim 2, wherein The feeding rack comprises a feeding base, a standby rack and a reference member arranged on the feeding base; 5. The polishing apparatus according to claim 1, wherein The feeding base has a feeding area, the standby rack has a standby area for placing the workpiece, and along the third direction, the standby area is located above the feeding area; 6. The polishing apparatus according to claim 1, wherein The reference member is arranged on the feeding base and extends along the first direction, and is used for abutting against the workpiece falling from the standby area to the feeding area; 7. The polishing apparatus according to claim 6, wherein The third direction is the height direction of the feeding rack, and the first direction, the second direction and the third direction are perpendicular to each other. The standby rack comprises a side stand and two blocking members, the side stand is arranged on the feeding rack, and the two blocking members are arranged on the feeding rack along the first direction and form the standby area in cooperation. The first polishing member and the second polishing member are arranged in plurality respectively, and the plurality of first polishing members and the plurality of second polishing members are arranged along the first direction at intervals respectively. ​ 8. The polishing apparatus according to claim 7, wherein ​ 9. The polishing apparatus according to any one of claims 1 to 8, wherein ​ 10. The polishing apparatus according to any one of claims 1 to 8, wherein The first polishing member and the second polishing member each comprise a support base, a driving member and a grinding wheel, the support base is adjustably arranged along the second direction, the driving member is arranged on the support base, and the grinding wheel is connected to the output end of the driving member.

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