Rotor groove grinding mechanism

Abstract

The utility model discloses a rotor groove grinding mechanism which comprises a rotating shaft and a grinding wheel, an installation hole is formed in the center of the grinding wheel, the rotating shaft penetrates through the installation hole, the grinding wheel comprises a grinding wheel body, the front face of the grinding wheel body is a flat end face, and a supporting frustum is installed on the back face of the grinding wheel body. The supporting frustum and the grinding wheel body are coaxially arranged, an annular space is reserved between the peripheral edge of the grinding wheel body and the peripheral face of the supporting frustum, a grinding structure is arranged on the annular space, and the grinding structure is annularly arranged on the annular space. The grinding structure is located on one side of the front face of the grinding wheel body to form a working face. According to the grinding wheel, the flat end face of the front face of the grinding wheel serves as a working face, the position of the grinding wheel can be adjusted more conveniently, and the supporting frustum structure on the back face of the grinding wheel plays a role in enhancing the stability of the grinding wheel body.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of grinding machine processing technology, especially a rotor slot grinding mechanism. BACKGROUND

[0002] Rotor slot grinding machine is a machine tool, which can realize full-automatic processing of rotor slot grinding. The rotor slot grinding machine generally comprises a rack, a grinding mechanism, a dressing device and a control device arranged on the rack, the grinding mechanism comprises a clamp, a grinding wheel, a rotating shaft and a driving device, and the clamp is used for clamping a workpiece for grinding work of the grinding wheel. However, the grinding wheel in the prior art generally comprises a mounting surface, the front surface and the back surface of the mounting surface are provided with a conical structure, and the grinding surface of the grinding wheel is arranged on the inclined surface of the conical structure. Since there is an included angle between the grinding surface and the mounting surface, it is difficult to adjust the position, and after replacing a new grinding wheel each time, the position of the grinding wheel needs to be adjusted again to adapt the grinding surface to the surface to be processed of the workpiece. Since the workpiece is a rotor structure and the surface to be processed is a curved surface structure, the grinding wheel needs to be adjusted frequently to adapt the grinding surface to the workpiece, which not only increases the labor intensity of the operator, but also reduces the production efficiency of the machine tool. SUMMARY

[0003] In order to overcome the shortcomings of the prior art, the utility model provides a rotor slot grinding mechanism which is more convenient to adjust.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme of a rotor slot grinding mechanism, which comprises a rotating shaft and a grinding wheel, the center of the grinding wheel is provided with a mounting hole, the rotating shaft is arranged in the mounting hole, characterized in that the grinding wheel comprises a grinding wheel piece body, the front surface of the grinding wheel piece body is a flat end surface, the back surface is provided with a supporting conical structure, the supporting conical structure is coaxially arranged with the grinding wheel piece body, the annular space is left between the outer circumferential surface of the grinding wheel piece body and the outer circumferential surface of the supporting conical structure, the grinding structure is arranged on the annular space, the grinding structure is arranged in a circular ring shape on the annular space, and the grinding structure located on one side of the front surface of the grinding wheel piece body constitutes a working surface.

[0005] Further arrangement, the grinding structure extends from the front surface of the grinding wheel piece body to the back surface of the grinding wheel piece body.

[0006] It should be noted that the grinding structure penetrates the front surface and the back surface of the grinding wheel piece body and is arranged in a ring shape along the circumferential direction of the grinding wheel piece body.

[0007] Further arrangement, the width of the grinding structure is at least 1 / 4 of the distance between the outer circumferential surface of the grinding wheel piece body and the outer circumferential surface of the supporting conical structure, and the distance between the center position of the grinding structure and the outer circumferential surface of the grinding wheel piece body is not greater than the distance between the center position of the grinding structure and the outer circumferential surface of the supporting conical structure.

[0008] In a further configuration, an L-shaped chamfer is provided at the junction of the outer peripheral surface of the support cone and the back of the grinding wheel body.

[0009] In a further configuration, a connecting disc and a limiting sleeve are provided between the mounting hole and the rotating shaft. The connecting disc is inserted into the mounting hole from the front of the grinding wheel body, and the limiting sleeve is inserted into the mounting hole from the back of the grinding wheel body. The rotating shaft passes through the connecting disc and the limiting sleeve, and the grinding wheel is clamped between the connecting disc and the limiting sleeve. The connecting disc and the limiting sleeve are connected by fasteners.

[0010] In a further configuration, the connecting disc includes a disc body, the disc body having an axially protruding central boss in the middle, and the diameter of the first disc body being larger than the diameter of the limiting sleeve and smaller than the maximum diameter of the supporting cone.

[0011] In a further configuration, the lower edge of the central boss is connected to the upper edge of the disc body via a slope. The slope is provided with fastening holes adapted to the fasteners. The fastening holes are evenly spaced along the circumference of the slope, and the axial direction of the fastening holes is perpendicular to the grinding wheel body.

[0012] In a further configuration, the limiting sleeve includes a central sleeve, the end face of the central sleeve facing the supporting cone having an outwardly expanding limiting edge, the limiting edge and the central sleeve forming a T-shaped structure, the upper end face of the supporting cone facing the limiting sleeve, and the upper end face of the supporting cone abutting against the limiting edge.

[0013] In a further configuration, the supporting cone has a groove on its upper surface facing the limiting sleeve, the limiting edge is embedded in the groove, and the outer peripheral surface of the limiting edge abuts against the inner wall of the groove.

[0014] As a further feature, the upper surface of the supporting cone is provided with a triangular assembly and disassembly positioning structure.

[0015] By adopting the above solution, the flat end face of the grinding wheel on the front side of the grinding wheel is used as the working surface, which makes it easier to adjust the position of the grinding wheel. The supporting cone structure on the back side of the grinding wheel enhances the stability of the grinding wheel body.

[0016] The present invention will now be further described with reference to the accompanying drawings. Attached Figure Description

[0017] Appendix Figure 1 This is a front view of the structure of a specific embodiment of the present utility model;

[0018] Appendix Figure 2 This is a schematic diagram of the connection structure between the grinding wheel body and the supporting cone in a specific embodiment of this utility model;

[0019] Figure 2 is a structural left view of the embodiment of the present application. Figure 3 Figure 2 is a structural left view of the embodiment of the present application.

[0020] Figure 2 is a structural left view of the embodiment of the present application. Figure 4 Figure 2 is a structural left view of the embodiment of the present application.

[0021] Grinding wheel 1, mounting hole 12, grinding wheel piece body 11, support cone 2, annular space 13, grinding structure 3, outer peripheral edge 111 of grinding wheel piece body 11, outer peripheral surface 21 of support cone 2, L-shaped chamfer 22, connecting disc 3, center boss 31, slope surface 32, fastening hole 33, disc body 34, limiting sleeve 4, center sleeve 41, limiting edge 42, recess 23, dismounting and positioning structure 24. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0023] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or there can be a middle component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or there can be a middle component. The terms "vertical", "horizontal", "up", "down", "left", "right", and similar expressions used in the description of the present application are for the purpose of illustration only, and do not indicate the only embodiment.

[0024] In addition, the terms "first", "second", etc. are used only for descriptive purposes and should not be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, the features defined as "first", "second", etc. can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0025] In the present application, unless specifically defined and limited otherwise, a first feature "on", "under", "above" or "over" a second feature can be directly in contact with the second feature, or indirectly in contact with the second feature through an intermediate medium. Moreover, the first feature "on", "above" or "over" the second feature can be directly above or obliquely above the second feature, or only means that the first feature is higher than the second feature in horizontal height. The first feature "under", "below" or "under" the second feature can be directly below or obliquely below the second feature, or only means that the first feature is lower than the second feature in horizontal height.

[0026] Unless otherwise defined, all technical and scientific terms used in the specification of the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used in the specification of the present application includes any and all combinations of one or more related listed items.

[0027] The specific embodiments of the utility model Figures 1-4 As shown in a kind of rotor slot grinding mechanism, including shaft and grinding wheel 1, grinding wheel 1 center is equipped with mounting hole 12, shaft is worn in mounting hole 12, grinding wheel 1 includes grinding wheel piece body 11, the front of grinding wheel piece body 11 is flat end face, back is equipped with support cone 2, support cone 2 is coaxially arranged with grinding wheel piece body 11, the outer circumferential along 111 of grinding wheel piece body 11 distance support cone 2 outer circumferential surface 21 between annular space 13 is left, annular space 13 is equipped with grinding structure 3, grinding structure 3 is circularly arranged on annular space 13, grinding structure 3 is located on the side of the front of grinding wheel piece body 11 and constitutes working surface.

[0028] It needs to be explained that the thickness of the above-mentioned annular space 13 is less than the thickness of support cone 2, the front of the above-mentioned grinding wheel piece body 11 is plane structure, as contact workpiece grinding is used, by adopting plane structure grinding, more convenient to adjust the position of grinding wheel 1 piece, the support cone 2 structure of the back of grinding wheel 1 piece can play the role of enhancing the stability of grinding wheel piece body 11.

[0029] Further setting, the above-mentioned grinding structure 3 extends from the front of grinding wheel piece body 11 to the back of grinding wheel piece body 11. The grinding structure 3 penetrates the front and back of grinding wheel piece body 11, and is arranged in a circular ring along the circumference of grinding wheel piece body 11.

[0030] Further, the width of the grinding structure 3 is at least 1 / 4 of the distance between the outer peripheral edge 111 of the grinding wheel piece body 11 and the outer peripheral surface 21 of the support cone 2, and the distance from the center position of the grinding structure 3 to the outer peripheral edge 111 of the grinding wheel piece body 11 is not greater than the distance from the center position of the grinding structure 3 to the outer peripheral surface 21 of the support cone 2.

[0031] It should be noted that the grinding structure 3 is located between the outer peripheral edge 111 of the grinding wheel piece body 11 and the support cone 2, and is closer to the outer peripheral edge 111 of the grinding wheel piece body 11. This facilitates the approaching and moving away of the workpiece. If the position is too close to the outer peripheral edge 111 of the grinding wheel piece body 11, the impact force on the outer peripheral edge 111 of the grinding wheel piece body 11 during processing is too large, which can easily damage the outer peripheral wall of the grinding wheel 1. If the position is too close to the support cone 2, the distance that the workpiece needs to move during processing is lengthened, which increases the risk of interference between the workpiece and other components.

[0032] Further, an L-shaped chamfer 22 is arranged at the joint between the outer peripheral surface 21 of the support cone 2 and the back surface of the grinding wheel piece body 11.

[0033] It should be noted that the L-shaped chamfer 22 makes the joint between the support cone 2 and the grinding wheel piece body 11 smoother, reducing stress concentration. Since the grinding wheel piece body 11 is relatively thin, if the stress concentration is significant, the transition edge of the grinding wheel piece body 11 and the support cone 2 can be easily broken.

[0034] Further, a connecting disc 3 and a limiting sleeve 4 are arranged between the mounting hole 12 on the grinding wheel piece body 11 and the rotating shaft. The connecting disc 3 is inserted into the mounting hole 12 from the front surface of the grinding wheel piece body 11, the limiting sleeve 4 is inserted into the mounting hole 12 from the back surface of the grinding wheel piece body 11, the rotating shaft penetrates through the connecting disc 3 and the limiting sleeve 4, the grinding wheel 1 is clamped between the connecting disc 3 and the limiting sleeve 4, and the connecting disc 3 and the limiting sleeve 4 are connected by a fastener.

[0035] It should be noted that the grinding wheel piece body 11 is clamped between the limiting sleeve 4 and the connecting disc 3, forming a tight fit for easy assembly.

[0036] Further, the connecting disc 3 includes a disc body 34, and an axially protruding center boss 31 is arranged in the middle of the disc body 34. The diameter of the first disc body 34 is greater than the diameter of the limiting sleeve 4 and less than the maximum diameter of the support cone 2.

[0037] It should be noted that the connecting disc 3 is located on the front surface of the grinding wheel piece body 11, and the diameter of the connecting disc 3 is greater than the diameter of the limiting sleeve 4. The large-area connecting disc 3 abuts against the front surface of the grinding wheel 1, playing a role in reinforcing and stabilizing. The limiting sleeve 4 abuts against the back surface of the grinding wheel piece body 11, forming a compact fit.

[0038] Further arrangement, the lower edge of the center boss 31 is connected with the upper edge of the disc body 34 through the slope surface 32, the slope surface 32 is provided with the fastening hole 33 matched with the fastener, the fastening hole 33 is uniformly spaced along the circumferential direction of the slope surface 32, and the axial direction of the fastening hole 33 is perpendicular to the grinding wheel piece body 11.

[0039] It should be noted that the fastener in the embodiment is a bolt structure, and the bolt is locked with a nut after penetrating the connecting disc 3 and the limiting sleeve 4 in sequence.

[0040] Further arrangement, the limiting sleeve 4 includes a center sleeve 41, the center sleeve 41 has an outwardly expanded limiting edge 42 towards the end face of the supporting cone 2, the limiting edge 42 forms a T-shaped structure with the center sleeve 41, the upper end face of the supporting cone 2 faces the limiting sleeve 4, and the upper end face of the supporting cone 2 abuts on the limiting edge 42.

[0041] It should be noted that the limiting sleeve 4 abuts on the upper end face of the supporting cone 2 through the outwardly expanded limiting edge 42, so as to tightly clamp the grinding wheel piece body 11 and the supporting cone 2 between the limiting sleeve 4 and the connecting disc 3.

[0042] Further arrangement, the upper end face of the supporting cone 2 is provided with a groove 23 facing the limiting sleeve 4, the limiting edge 42 is embedded in the groove 23, and the outer circumferential surface of the limiting edge 42 abuts on the inner wall of the groove 23.

[0043] It should be noted that the limiting sleeve 4 is embedded in the groove 23 of the supporting cone 2 through the limiting edge 42, so as to play a positioning role, prevent the limiting sleeve 4 and the supporting cone 2 from relatively moving in the radial direction, and further enhance the stability of the mounting structure.

[0044] Further arrangement, the upper end face of the supporting cone 2 is provided with a triangular dismounting positioning structure 24.

[0045] It should be noted that the upper end face of the supporting cone 2 is provided with the triangular dismounting positioning structure 24, so as to facilitate installation and dismounting, and the dismounting positioning structure 24 can be a protruding structure or a cavity structure, and is matched with a dismounting tool.

[0046] The utility model is not limited to the above specific embodiments, and the technical features of the above embodiments can be combined arbitrarily, and in order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, it should be considered that the range of the description is recorded in the utility model. According to the content disclosed in the utility model, those skilled in the art can adopt other various specific embodiments to implement the utility model, or any simple change or change is made by adopting the design structure and idea of the utility model, and falls within the protection scope of the utility model.

Claims

1. A rotor slot grinding mechanism comprising a rotating shaft and a grinding wheel, the grinding wheel having a mounting hole in the center, the rotating shaft being inserted into the mounting hole, characterized in that, The grinding wheel comprises a grinding wheel piece body, a front surface of the grinding wheel piece body is a flat end surface, a support cone is mounted on a back surface of the grinding wheel piece body, the support cone is coaxially arranged with the grinding wheel piece body, an annular space is left between an outer periphery of the grinding wheel piece body and an outer periphery surface of the support cone, a grinding structure is arranged on the annular space, the grinding structure is circularly arranged on the annular space, and the grinding structure located on one side of the front surface of the grinding wheel piece body forms a working surface.

2. A rotor slot grinding mechanism according to claim 1, characterized in that The grinding structure extends from the front surface of the grinding wheel piece body to the back surface of the grinding wheel piece body.

3. A rotor slot grinding mechanism according to claim 1, wherein The width of the grinding structure is at least 1 / 4 of the distance between the outer periphery of the grinding wheel piece body and the outer periphery surface of the support cone, and the distance from the center position of the grinding structure to the outer periphery of the grinding wheel piece body is not greater than the distance from the center position of the grinding structure to the outer periphery surface of the support cone.

4. A rotor slot grinding mechanism according to claim 1, wherein An L-shaped chamfer is arranged at the joint between the outer periphery surface of the support cone and the back surface of the grinding wheel piece body.

5. A rotor slot grinding mechanism according to claim 1, wherein A connecting disc and a limiting sleeve are further arranged between the mounting hole and the rotating shaft, the connecting disc is inserted into the mounting hole from the front surface of the grinding wheel piece body, the limiting sleeve is inserted into the mounting hole from the back surface of the grinding wheel piece body, the rotating shaft penetrates through the connecting disc and the limiting sleeve, the grinding wheel piece is clamped between the connecting disc and the limiting sleeve, and the connecting disc and the limiting sleeve are connected through a fastener.

6. A rotor slot grinding mechanism according to claim 1, wherein The connecting disc comprises a disc body, an axially protruding center boss is arranged in the middle of the disc body, the diameter of the disc body is greater than the diameter of the limiting sleeve and smaller than the maximum diameter of the support cone.

7. A rotor slot grinding mechanism according to claim 6, wherein The lower edge of the center boss is connected to the upper edge of the disc body through a slope surface, a fastening hole adapted to the fastener is arranged on the slope surface, the fastening holes are uniformly and circumferentially arranged along the slope surface, and the axis of the fastening hole is perpendicular to the grinding wheel piece body.

8. A rotor slot grinding mechanism according to claim 5, wherein The limiting sleeve comprises a center sleeve, the end surface of the center sleeve towards the support cone has an outwardly expanded limiting edge, the limiting edge and the center sleeve form a T-shaped structure, the upper end surface of the support cone is towards the limiting sleeve, and the upper end surface of the support cone is abutted on the limiting edge.

9. A rotor slot grinding mechanism according to claim 8, wherein The upper end surface of the support cone towards the limiting sleeve is provided with a groove, the limiting edge is embedded in the groove, and the outer periphery surface of the limiting edge is abutted on the inner wall of the groove.

10. A rotor slot grinding mechanism according to claim 1, wherein The upper end surface of the support cone is provided with a triangular dismounting positioning structure.

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