Charging tray

Abstract

The embodiment of the invention provides a charging tray. The charging tray comprises a tray body. An inserting hole is formed in the disc body and comprises a first opening and a second opening which are opposite, the first opening is used for allowing a cutter to stretch into the inserting hole and enabling the cutter to be exposed to the side, away from the first opening, of the second opening, and the distance between the inner wall of the inserting hole and the axis of the inserting hole is gradually increased in the direction that the first opening faces the second opening, or the distance between the inner wall of the inserting hole and the axis of the inserting hole is gradually increased. And the distance between the inner wall of the inserting hole and the axis of the inserting hole is gradually reduced. According to the charging tray, in the direction from the first opening to the second opening, the distance between the inner wall and the axis of the inserting hole is gradually increased or decreased, and the part, with the smaller distance from the axis of the inserting hole, of the inner wall of the inserting hole can abut against a cutter so as to fix the cutter; a liquid drainage cavity located between the inner wall and the tool can be formed in the portion, with the large distance from the axis of the inserting hole, of the inner wall, and therefore the risk that cleaning liquid on the surface of the tool is difficult to drain can be reduced, and the risk that defects are formed on the surface of the tool can be reduced.

Description

Technical Field

[0001] This invention relates to the field of cutting tool manufacturing technology, and in particular to a feed tray. Background Technology

[0002] During the machining process, cutting tools need to be stored and secured in a tray. The tool surface may contain oil, metal powder, and other contaminants, requiring cleaning with a cleaning solution. After cleaning, residual cleaning solution usually remains on the tool surface. In existing technologies, when the tray stores the tools, the residual cleaning solution is difficult to drain. This solution forms dirt on the tool surface and continuously reacts with the tool, leading to surface defects. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a feed tray that can reduce the risk of defects forming on the tool surface.

[0004] This invention provides a feed tray, which includes a tray body. The tray body has an insertion hole, which includes a first opening and a second opening opposite to each other. The first opening is used to allow a cutting tool to extend into the insertion hole, and the cutting tool is exposed on the side of the second opening opposite to the first opening. In the direction from the first opening to the second opening, the distance between the inner wall of the insertion hole and the axis of the insertion hole gradually increases, or the distance between the inner wall of the insertion hole and the axis of the insertion hole gradually decreases.

[0005] The material tray provided in the embodiments of the present invention has at least the following beneficial effects: The first opening allows the tool to extend into the insertion hole, enabling the tray to store and fix the tool. In the direction from the first opening to the second opening, the distance between the inner wall of the insertion hole and the axis of the insertion hole gradually increases or decreases. The portion of the inner wall of the insertion hole with a smaller distance from the axis of the insertion hole can abut against the tool to fix it. The portion of the inner wall of the insertion hole with a larger distance from the axis of the insertion hole can form a drainage cavity located between the inner wall and the tool, thereby improving the drainage performance of the tray and reducing the risk that the cleaning fluid on the tool surface is difficult to drain, thus reducing the risk of defects forming on the tool surface.

[0006] In one embodiment of this implementation, a cutting plane is defined, the axis is located in the cutting plane, the inner wall intersects the cutting plane and forms a drainage line, and the angle between the drainage line and the axis is 3.2°-12°.

[0007] In one embodiment of this implementation, the disc body includes a top surface perpendicular to the axial direction, a first opening is located on the top surface, and the distance between the inner wall of the insertion hole and the axis of the insertion hole gradually decreases in the direction from the first opening to the second opening.

[0008] In one embodiment of this implementation, the disk body is further provided with a guide surface and an expansion hole. The expansion hole is connected to the insertion hole and penetrates the disk body. The direction from the first opening to the second opening is defined as the positive direction. The guide surface intersects with the wall of the expansion hole to form a guide line. The guide surface is inclined to the axis so that the distance between each part of the guide surface distributed in the positive direction and the axis gradually decreases, and the distance between each part of the guide line distributed in the positive direction and the center line of the expansion hole gradually increases. The guide surface connects the inner wall and the hole wall.

[0009] In one embodiment of this implementation, the disc body is made of plastic.

[0010] In one embodiment of this implementation, the disc body has a top surface and a bottom surface on opposite sides in a direction parallel to the axis. A first opening is located on the top surface, and a second opening is located on the bottom surface. A support strip is provided on the bottom surface. The support strip extends in a direction perpendicular to the axis and passes through one side of the second opening in the direction of the axis. The support strip is used to abut against the tool.

[0011] In one embodiment of this implementation, on a projection plane perpendicular to the axial direction, a portion of the projection of the inner wall is located outside the projection of the support strip.

[0012] In one embodiment of this implementation, the disc body has a plurality of insertion holes, which are spaced apart along a first direction perpendicular to the axial direction. The support strip extends along the first direction and passes through one side of a plurality of second openings along the axial direction in sequence.

[0013] In one embodiment of this implementation, a plurality of insertion holes arranged at intervals along a first direction constitute a row of insertion holes on the disc body. The disc body has multiple rows of insertion holes arranged along a second direction, which is perpendicular to the first direction and the axial direction. The disc also includes a grid plate located on the bottom surface. The grid plate has a plurality of fences arranged at intervals along a direction perpendicular to the axial direction. The plurality of fences correspond one-to-one to form a plurality of support strips.

[0014] In one embodiment of this implementation, positioning posts and positioning holes are respectively provided on opposite sides of the disc body along the axial direction, the axes of the positioning posts and positioning holes coincide, and the radius of the positioning holes is greater than or equal to the radius of the positioning posts.

[0015] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a three-dimensional structural diagram of the material tray according to one embodiment of the present invention; Figure 2 yes Figure 1 A schematic diagram of the material tray from another perspective; Figure 3 yes Figure 1 A top view of the material tray; Figure 4 yes Figure 3 A cross-sectional view of the material tray along the AA direction; Figure 5 yes Figure 1 Enlarged schematic diagram of part of the structure; Figure 6 yes Figure 3 An enlarged schematic diagram of part of the structure.

[0017] Figure label: 100; 10; 11; 11; 111; 112; 113; 114; 12; 13; 14; 15; 16; 20; 21; 30; 40; 40. Detailed Implementation

[0018] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein 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 with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0019] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0020] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0021] In the description of this invention, unless otherwise explicitly defined, terms such as "setting," "installing," and "connecting" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0022] In the description of this invention, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0023] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

[0024] Please see Figure 1 , Figures 3 to 5 , Figure 1 This is a three-dimensional structural diagram of the material tray 100 according to one embodiment of the present invention; Figure 3 yes Figure 1 A top view of the material tray 100; Figure 4 yes Figure 3 A cross-sectional view of the material tray 100 along the AA direction; Figure 5 yes Figure 1 An enlarged schematic diagram of a portion of the structure is shown. An embodiment of the present invention provides a material tray 100, which includes a tray body 10. An insertion hole 11 is provided on the tray body 10. The insertion hole 11 includes a first opening 111 and a second opening 112 opposite to each other. The first opening 111 is used for inserting a cutting tool into the insertion hole 11, and the cutting tool is exposed on the side of the second opening 112 opposite to the first opening 111. In the direction from the first opening 111 to the second opening 112, the distance between the inner wall 113 of the insertion hole 11 and the axis of the insertion hole 11 gradually increases, or the distance between the inner wall 113 of the insertion hole 11 and the axis of the insertion hole 11 gradually decreases.

[0025] Specifically, the axis of the insertion hole 11 is parallel to the Z-direction, the insertion hole 11 penetrates the disk body 10, and the inner wall 113 of the insertion hole 11 is inclined to the Z-direction. A cross-section perpendicular to the Z-direction is defined, and the cross-section intersects the inner wall 113 of the insertion hole 11 to form an insertion line with a closed contour. The insertion line encloses and forms an insertion area. In some embodiments, the contours of the insertion lines on any two cross-sections are similar, and the projection of the insertion area on a projection plane perpendicular to the Z-direction is similar to the projection of the first opening 111. The first opening 111 and the second opening 112 are arranged along the Z-direction, and the direction from the first opening 111 to the second opening 112 is defined as the positive direction. In some embodiments, in the positive direction, the distance between the inner wall 113 of the insertion hole 11 and the axis of the insertion hole 11 gradually decreases, so that the area of ​​the insertion area on the multiple cross-sections arranged sequentially in the positive direction gradually decreases. It should be understood that in some other embodiments, in the positive direction, the distance between the inner wall 113 of the insertion hole 11 and the axis of the insertion hole 11 can be gradually increased so that the area of ​​the insertion region on the multiple cross-sections arranged sequentially in the positive direction gradually increases.

[0026] It is understandable that when the tool is inserted into the insertion hole 11, the axis of the insertion hole 11 is parallel to the axis of the tool. Each part of the tool distributed in the Z direction is located in the corresponding insertion area. The area of ​​the insertion area distributed on multiple cutting surfaces gradually changes so that part of the inner wall 113 can abut against the tool, and the remaining part of the inner wall 113 forms a drainage cavity with the tool. The drainage cavity can be used to supply the cleaning fluid on the tool so that the cleaning fluid can flow out of the insertion hole 11 through the drainage cavity.

[0027] In the material tray 100 of this embodiment of the invention, the first opening 111 allows a tool to be inserted into the insertion hole 11, so that the material tray 100 can store and fix the tool. In the direction from the first opening 111 to the second opening 112, the distance between the inner wall 113 of the insertion hole 11 and the axis of the insertion hole 11 gradually increases or decreases. The portion of the inner wall 113 of the insertion hole 11 with a smaller distance from the axis of the insertion hole 11 can abut against the tool to fix the tool. The portion of the inner wall 113 of the insertion hole 11 with a larger distance from the axis of the insertion hole 11 can form a drainage cavity located between the inner wall 113 and the tool, so as to improve the drainage performance of the material tray 100, thereby reducing the risk that the cleaning liquid on the tool surface is difficult to drain, and further reducing the risk of defects forming on the tool surface.

[0028] Please see Figures 1 to 5 In one embodiment of this implementation, a cutting plane is defined, the axis is located in the cutting plane, the inner wall 113 intersects the cutting plane and forms a drain line 114, and the angle between the drain line 114 and the axis is 3.2°-12°.

[0029] Specifically, the cutting plane is parallel to the Z direction, and the angle α between the drainage line 114 and the axis can be 3.2°, 5.4°, 7.6°, 9.8° and 12°.

[0030] Understandably, when the angle α between the drain line 114 and the axis is less than 3.2°, the size of the drain cavity formed between the inner wall 113 and the tool is small, making it difficult for the insertion hole 11 to drain the cleaning fluid from the tool surface. It should be noted that during the process of draining the cleaning fluid from the tool surface through the insertion hole 11, the cleaning fluid slides along the drain line 114 on the surface of the inner wall 113. The inner wall 113 applies a supporting force to the cleaning fluid, parallel to the cutting plane and perpendicular to the drain line 114. When the angle α between the drain line 114 and the axis is greater than 12°, the component of the supporting force applied by the inner wall 113 along the Z direction is larger during the sliding process of the cleaning fluid along the inner wall 113, making it difficult for the cleaning fluid to slide along the inner wall 113, thus making it difficult for the insertion hole 11 to drain the cleaning fluid from the tool surface. An angle α between the drain line 114 and the axis of 3.2°-12° is beneficial for improving the drainage performance of the insertion hole 11, thereby further reducing the risk of defects forming on the tool surface.

[0031] Please see Figures 1 to 5 In one embodiment of this implementation, the disc body 10 includes a top surface 12 perpendicular to the axial direction, a first opening 111 located on the top surface 12, and the distance between the inner wall 113 of the insertion hole 11 and the axis of the insertion hole 11 gradually decreases in the direction from the first opening 111 toward the second opening 112.

[0032] Specifically, the area of ​​the first opening 111 is larger than the area of ​​the second opening 112, and the area of ​​the insertion area on the multiple cross-sections arranged sequentially in the positive direction gradually decreases.

[0033] It should be noted that during the tool production process, after the tool is machined, a robotic arm transfers the tool from the production line and inserts it into the insertion hole 11 on the material tray 100. Due to limitations in the robotic arm's motion accuracy, the position of the tool and the insertion hole 11 may not be as expected during the insertion process. This can cause the tool to impact the top surface 12, causing the cleaning fluid adhering to the tool surface to fall onto the top surface 12 and making it difficult to insert the tool into the insertion hole 11. During the conveying process of the material tray 100, the cleaning fluid on the top surface 12 of the material tray 100 may slide onto the tool, resulting in defects on the tool surface.

[0034] Understandably, in the positive direction, the distance between the inner wall 113 of the insertion hole 11 and the axis of the insertion hole 11 gradually decreases, which allows the radial dimensions of each part of the insertion hole 11 distributed sequentially in the positive direction to gradually decrease. On the one hand, this allows the first opening 111 to be larger than the second opening 112, so that while ensuring the fixing effect of the insertion hole 11 on the tool, it is convenient for the robot to insert the tool into the insertion hole 11. On the other hand, during the process of the robot inserting a tool whose relative position to the insertion hole 11 does not meet the expectations into the insertion hole 11, the tool can slide along the inner wall 113 and the axis of the tool gradually approaches the axis of the insertion hole 11, so that the inner wall 113 can smoothly adjust the position of the tool to meet the expectations, thereby reducing the risk of cleaning fluid on the tool surface falling onto the top surface 12, and further reducing the risk of defects forming on the tool surface.

[0035] Please see Figures 1 to 6 , Figure 6 yes Figure 3 An enlarged schematic diagram of a portion of the structure. In one embodiment of this implementation, the disk body 10 also has a guide surface 14 and an expansion hole 16. The expansion hole 16 connects to the insertion hole 11 and penetrates the disk body 10. The direction from the first opening 111 to the second opening 112 is defined as the positive direction. The guide surface 14 intersects with the hole wall of the expansion hole 16 to form a guide line 15. The guide surface 14 is inclined to the axis so that the distance between each part of the guide surface 14 distributed sequentially in the positive direction and the axis gradually decreases, and the distance between each part of the guide line 15 distributed sequentially in the positive direction and the center line of the expansion hole 16 gradually increases. The guide surface 14 connects the inner wall 113 and the hole wall.

[0036] Specifically, the center line of the expansion hole 16 is parallel to the Z direction, and four expansion holes 16 are provided, which are arranged circumferentially along the axis of the insertion hole 11.

[0037] Understandably, the guide surface 14 can be used to allow the cleaning fluid on the top surface 12 to enter the expansion hole 16 and the insertion hole 11, so that the cleaning fluid on the top surface 12 can be discharged. The guide surface 14 can further increase the size of the first opening 111, and the tool can slide along the guide surface 14 during the process of the robot inserting the tool into the insertion hole 11, so as to further facilitate the robot inserting the tool into the insertion hole 11. The distance between each part of the guide surface 14 distributed sequentially in the positive direction and the axis gradually decreases, so that during the process of inserting the tool into the insertion hole 11, the guide surface 14 scrapes off the cleaning fluid on the surface of the tool and allows the cleaning fluid to slide along the guide surface 14 to enter the expansion hole 16 through the guide line 15, so that the cleaning fluid can be discharged from the expansion hole 16. The distance between each part of the guide line 15 distributed sequentially in the positive direction and the center line of the expansion hole 16 gradually increases, which can increase the flow rate of the cleaning fluid flowing into the expansion hole 16 through the guide line 15 on the guide surface 14 and reduce the flow rate of the cleaning fluid entering the insertion hole 11 from the guide surface 14. This design reduces the amount of cleaning fluid brought into the insertion hole 11 by the tool, which helps to reduce the risk of cleaning fluid accumulating in the insertion hole 11 and causing defects on the tool surface.

[0038] It should be noted that the expansion hole 16 connects to the insertion hole 11, which can increase the exposed area of ​​the tool surface when the tool is located in the insertion hole 11, which is beneficial to improve the drying speed of the tool on the tray 100, so as to reduce the risk of defects forming on the tool surface.

[0039] It should be understood that in some embodiments, the wall of the expansion hole 16 is inclined in the Z direction, and the distance between the various parts of the wall of the expansion hole 16 distributed in the positive direction and the axis gradually decreases. This arrangement is beneficial to improving the drainage performance of the expansion hole 16.

[0040] Please see Figure 1 In one embodiment of this implementation, the disc body 10 is made of plastic.

[0041] Specifically, the disc body 10 is made of ABS engineering plastic. Understandably, the chemical properties of plastic are stable, which reduces the risk of reaction between the cutting tool and the disc body 10, and also reduces the risk of oxides adhering to the surface of the cutting tool due to oxidation of the disc body 10, thereby further reducing the risk of defects forming on the surface of the cutting tool.

[0042] Please see Figures 1 to 6 In one embodiment of this implementation, the disc body 10 has a top surface 12 and a bottom surface 13 on opposite sides in a direction parallel to the axis. A first opening 111 is located on the top surface 12, and a second opening 112 is located on the bottom surface 13. A support strip 21 is provided on the bottom surface 13. The support strip 21 extends in a direction perpendicular to the axis and passes through one side of the second opening 112 in the direction of the axis. The support strip 21 is used to abut against the tool.

[0043] Specifically, the support strip 21 extends along the X direction and is made of plastic. It is understood that the support strip 21 is used to support the cutting tool, preventing the tool inserted through the first opening 111 from protruding through the second opening 112. This design improves the tool's fixation effect on the disc body 10. The plastic material of the support strip 21 reduces the risk of reaction between the tool and the support strip 21, and also reduces the risk of oxides adhering to the tool surface due to oxidation of the support strip 21.

[0044] It should be noted that when the tool is deflected, it will adhere to the inner wall 113. The support strip 21 has a support plane on the side facing the disc 10 along the Z direction. The support plane is used to abut against the end face of the tool. When the support plane abuts against the tool, it can limit the tool's deflection relative to the Z direction, so that the tool can remain upright in the insertion hole. On the one hand, this can reduce the risk that the cleaning fluid in the insertion hole 11 will be difficult to drain due to the tight fit between the inner wall 113 and the tool. On the other hand, the support strip 21 can assist the inner wall 113 in fixing the tool, so as to maximize the radial dimension of the insertion hole 11 while ensuring the tool's fixing effect, thereby improving the drainage capacity of the insertion hole 11.

[0045] Please see Figures 1 to 6 In one embodiment of this implementation, on a projection plane perpendicular to the axial direction, a portion of the projection of the inner wall 113 is located outside the projection of the support strip 21.

[0046] Specifically, the support strip 21 partially covers and exposes the second opening 112. It is understood that, on the projection plane perpendicular to the Z direction, the projection of the inner wall 113 is outside the projection of the support strip 21, allowing the support strip 21 to expose the second opening 112 on the side of the support strip 21 facing away from the disc body 10 along the Z direction. The cleaning fluid in the insertion hole 11 can drain from the insertion hole 11 through the uncovered portion of the second opening 112. This arrangement reduces the risk of the support strip 21 obstructing the drainage of cleaning fluid from the insertion hole 11.

[0047] Please see Figures 1 to 6 In one embodiment of this implementation, the disc body 10 is provided with a plurality of insertion holes 11, which are arranged at intervals along a first direction, which is perpendicular to the axial direction. The support bar 21 extends along the first direction and passes through one side of a plurality of second openings 112 along the axial direction in sequence.

[0048] Specifically, multiple insertion holes 11 are arranged along the X direction, and a support bar 21 extends along the X direction to pass sequentially through one side of the second opening 112 of the multiple insertion holes 11 along the Z direction. It is understood that providing multiple insertion holes 11 increases the capacity of the tray 100 for supporting tools. The support bar 21 passing through the multiple openings along the Z direction allows it to simultaneously support tools within the multiple insertion holes 11. This arrangement increases the capacity of the tray 100 while simplifying its structure.

[0049] Please see Figures 1 to 6 In one embodiment of this implementation, a plurality of insertion holes 11 arranged at intervals along a first direction constitute a row of insertion holes 11 on the disc body 10. The disc body 10 has multiple rows of insertion holes 11 arranged along a second direction, which is perpendicular to the first direction and the axial direction. The material tray 100 also includes a grid plate 20, which is located on the bottom surface 13. The grid plate 20 has a plurality of fences arranged at intervals along a direction perpendicular to the axial direction. The plurality of fences correspond one-to-one to form a plurality of support strips 21.

[0050] Specifically, the fences on the fence panel 20 are arranged at intervals along the Y direction.

[0051] Understandably, during the assembly of the tray 100, the assembly of the tray 100 can be completed by installing the grid plate 20 onto the tray body 10. The grid on the grid plate 20 forms multiple spaced-apart support bars 21, which simplifies the assembly process of the tray 100 and also simplifies the structure of the tray 100.

[0052] Please see Figures 1 to 6 In one embodiment of this implementation, positioning posts 30 and positioning holes 40 are respectively provided on opposite sides of the disc body 10 along the axial direction. The axes of the positioning posts 30 and the positioning holes 40 coincide, and the radius of the positioning holes 40 is greater than or equal to the radius of the positioning posts 30.

[0053] Specifically, the positioning pin 30 is located on one side of the disc body 10 along the Z-direction, and the positioning hole 40 is located on the other side of the disc body 10 along the Z-direction. It is understandable that during the tool manufacturing process, multiple discs 100 often need to be stacked along the Z-direction. With the positioning pin 30 and positioning hole 40, when multiple discs 100 are stacked, the positioning pin 30 of the upper disc 100 can extend into the positioning hole 40 of the lower disc 100, thereby improving the stability of the stacked discs 100. It should be understood that the discs 100 are usually transferred using a robotic arm. When the robotic arm transfers the discs 100, the positioning pin 30 and positioning hole 40 on the disc 100 can cooperate with the robotic arm to facilitate the robotic arm's fixation of the disc 100 and reduce the risk of the disc 100 falling due to unstable fixation by the robotic arm.

[0054] It should be understood that, in some embodiments, a QR code label is provided on the disc body 10. The QR code label is used to record information about the cutting tool inside the insertion hole 11. During the production process of the cutting tool, the QR code recognition device on the production line can recognize the QR code label on the disc body 10 and display the information recorded on the QR code label. This arrangement helps to improve the level of intelligence in cutting tool production.

[0055] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.

Claims

1. A material tray, characterized in that, include: The disc body has an insertion hole, which includes a first opening and a second opening. The first opening is used to allow a tool to be inserted into the insertion hole, and the tool is exposed on the side of the second opening away from the first opening. In the direction from the first opening to the second opening, the distance between the inner wall of the insertion hole and the axis of the insertion hole gradually increases, or the distance between the inner wall of the insertion hole and the axis of the insertion hole gradually decreases.

2. The material tray according to claim 1, characterized in that, Define a cutting plane, wherein the axis is located within the cutting plane, the inner wall intersects the cutting plane and forms a drainage line, and the angle between the drainage line and the axis is 3.2°-12°.

3. The material tray according to claim 1, characterized in that, The disc body includes a top surface perpendicular to the axis direction, the first opening is located on the top surface, and the distance between the inner wall of the insertion hole and the axis of the insertion hole gradually decreases in the direction from the first opening to the second opening.

4. The material tray according to claim 3, characterized in that, The disc body also has a guide surface and an expansion hole. The expansion hole connects to the insertion hole and penetrates the disc body. The direction from the first opening to the second opening is defined as the positive direction. The guide surface intersects with the wall of the expansion hole to form a guide line. The guide surface is inclined to the axis so that the distance between each part of the guide surface distributed sequentially along the positive direction and the axis gradually decreases, and the distance between each part of the guide line distributed sequentially along the positive direction and the center line of the expansion hole gradually increases. The guide surface connects the inner wall and the hole wall.

5. The material tray according to claim 1, characterized in that, The disc body is made of plastic.

6. The material tray according to claim 1, characterized in that, The disc body has a top surface and a bottom surface on opposite sides along a direction parallel to the axis. The first opening is located on the top surface, and the second opening is located on the bottom surface. A support strip is provided on the bottom surface. The support strip extends along a direction perpendicular to the axis and passes through the second opening on one side along the axis. The support strip is used to abut against the cutting tool.

7. The material tray according to claim 6, characterized in that, On a projection plane perpendicular to the axis, a portion of the projection of the inner wall lies outside the projection of the support strip.

8. The material tray according to claim 6, characterized in that, The disc body has a plurality of insertion holes, which are spaced apart along a first direction perpendicular to the axis. The support strip extends along the first direction and passes through a plurality of second openings on one side along the axis.

9. The material tray according to claim 8, characterized in that, Multiple insertion holes spaced apart along the first direction constitute a row of insertion holes on the tray body. The tray body has multiple rows of insertion holes arranged along a second direction, which is perpendicular to the first direction and the axial direction. The tray also includes a grid plate located on the bottom surface. The grid plate has multiple fences spaced apart along a direction perpendicular to the axial direction. The multiple fences correspond one-to-one to form multiple support bars.

10. The material tray according to claim 1, characterized in that, The disc body is provided with positioning posts and positioning holes on opposite sides along the axial direction, the axes of the positioning posts and the positioning holes coincide, and the radius of the positioning holes is greater than or equal to the radius of the positioning posts.

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