Grinding wheel repair mechanism and grinding machine using the same

Abstract

The utility model discloses a kind of grinding wheel repair mechanism and grinding machine using it, comprising: abrasive wheel, the rotary power element for driving abrasive wheel autorotation connected with abrasive wheel, the bracket for supporting rotary power element, and the driving assembly for driving bracket linear motion;Rotary power element is connected with abrasive wheel by transmission shaft;Transmission shaft is sleeved with the sheath connected with bracket on outer layer;The direction of linear motion of bracket is parallel to the axial direction of abrasive wheel;And driving assembly includes the nut connected with bracket, the screw rod matched with nut, and the driver for driving screw rod rotation;Grinding wheel repair mechanism further includes the support seat suitable for sheath passing and slidingly matched with sheath.

Description

Technical Field

[0001] This utility model relates to the field of knife sharpening technology, and in particular to a knife sharpening wheel repair mechanism and a grinding machine using the same. Background Technology

[0002] Grinding machines are commonly used to process cutting tools. For example, CN119973741A discloses a machine tool that uses the rotation of a grinding wheel to grind cutting tools to restore or improve their sharpness. However, practical research has shown that with such grinding machines, after a period of grinding, the grinding wheel's periphery wears down, and the grinding end face exhibits significant runout, leading to unstable precision in the ground cutting tools.

[0003] Based on the above, in one possible implementation, the worn grinding wheel is replaced, and the replaced grinding wheel is repaired. By periodically alternating the two grinding wheels, the following problems arise: firstly, replacing the grinding wheel will affect the grinding efficiency of the tool; secondly, after the grinding wheel is removed from the grinding area and ground and repaired, the runout of the grinding wheel's end face will change with the accuracy of the axis.

[0004] Therefore, in order to address the existing problems with grinding wheels in the use of existing grinding machines, and to ensure the reliability of grinding wheels under long-term use, it is necessary to further optimize the structure of the grinding machine. Utility Model Content

[0005] The primary objective of this invention is to provide a grinding wheel repair mechanism to address the technical problem of improving the reliability and stability of grinding wheels during long-term use.

[0006] The second objective of this invention is to provide a grinding machine that solves the technical problem of optimizing the reliability and stability of the grinding wheel used in its long-term use.

[0007] The grinding wheel repair mechanism of this utility model is implemented as follows:

[0008] A grinding wheel repair mechanism includes: a grinding wheel, a rotating power component connected to the grinding wheel for driving the grinding wheel to rotate, a bracket for supporting the rotating power component, and a drive assembly for driving the bracket to perform linear motion.

[0009] The rotating power component is connected to the grinding wheel via a drive shaft; the drive shaft is fitted with a protective sleeve connected to a bracket; and

[0010] The direction of the linear movement of the bracket is parallel to the axis of the grinding wheel;

[0011] The drive assembly includes a lead screw connected to the bracket, a lead screw cooperating with the lead screw, and a driver for driving the lead screw to rotate.

[0012] The grinding wheel repair mechanism also includes a support seat that is suitable for the sheath to pass through and slides with the sheath.

[0013] In an optional embodiment of this invention, the sheath has a hollow cavity for rotatably engaging with the drive shaft; and

[0014] A pair of bearings are provided between the drive shaft and the hollow cavity.

[0015] In an optional embodiment of this invention, the support base has a through hole suitable for the sheath to pass through and slidingly engage with the sheath.

[0016] In an optional embodiment of this invention, the grinding wheel includes an annular body with a hollow cavity and a base plate disposed at one axial end of the annular body; wherein

[0017] The drive shaft passes through the hollow cavity and is then fixed to the base plate.

[0018] In an optional embodiment of this utility model, the end of the drive shaft away from the rotating power component is integrally provided with a connector, and the base plate is provided with a connecting hole suitable for the connector portion to pass through; and

[0019] The outer diameter of the connector is smaller than the outer diameter of the drive shaft so that the junction of the connector and the drive shaft forms a stepped portion suitable for abutting against the side end face of the base plate facing the hollow cavity.

[0020] The bottom plate is also provided with a fastener suitable for connecting to the connector on the side facing away from the hollow cavity. The fastener is suitable for abutting against the side face of the bottom plate facing away from the hollow cavity.

[0021] In an optional embodiment of this utility model, a gasket is further sandwiched between the stepped portion and the side end face of the base plate facing the hollow cavity; and

[0022] The bottom plate is also provided with a clamping plate on the side facing away from the hollow cavity, which is suitable for fasteners to pass through.

[0023] In an optional embodiment of this invention, the rotating power component is a micro motor; and

[0024] The micro motor is connected to the drive shaft via a coupling.

[0025] In an optional embodiment of this utility model, the support base includes a transverse portion and a longitudinal portion adapted to form an L-shaped structure; wherein

[0026] The sheath passes through the longitudinal portion; and

[0027] The driver is fixed on the transverse part, and one end of the lead screw is inserted into the longitudinal part and rotates with the longitudinal part.

[0028] The grinding machine of this utility model is implemented as follows:

[0029] A grinding machine includes: a tool holder, a grinding wheel mounted on the tool holder and rotatably cooperating with the tool holder, and a grinding wheel repair mechanism located above the tool holder; wherein...

[0030] The support base is fixed on the tool holder; and

[0031] The direction of the linear movement of the support is parallel to the axis of the grinding wheel;

[0032] The grinding wheel is suitable for grinding the outer contour edge of the grinding wheel.

[0033] In an optional embodiment of this invention, the grinding machine further includes a two-dimensional drive assembly connected to the tool post for driving the tool post movement.

[0034] By adopting the above technical solution, this utility model has the following beneficial effects: The grinding wheel repair mechanism and the grinding machine using it, through the grinding wheel repair mechanism set on the tool holder, when the grinding wheel is worn and needs repair, it can be repaired by rotating the grinding wheel of the grinding wheel repair mechanism without removing the grinding wheel from the tool holder. This method avoids the cumbersome operation caused by disassembling and assembling the grinding wheel, and ensures that the grinding wheel during repair is always in the grinding area to guarantee its accuracy. Specifically, for the grinding wheel repair mechanism, a drive component designed to drive the support to make linear motion drives the grinding wheel to move along an axis parallel to the grinding wheel, thereby controlling the distance between the grinding wheel and the grinding wheel. When the grinding wheel does not need repair, the grinding wheel is relatively far away from the grinding wheel; when the grinding wheel needs repair, the grinding wheel is close to the grinding wheel. Therefore, the grinding wheel in this embodiment is only used when the grinding wheel needs repair, and will not interfere with the operation of the grinding wheel when it does not need repair. Attached Figure Description

[0035] Figure 1 This is a first-view structural schematic diagram of the grinding wheel repair mechanism of this utility model;

[0036] Figure 2 This is a second-view structural schematic diagram of the grinding wheel repair mechanism of this utility model;

[0037] Figure 3 This is a cross-sectional view of the grinding wheel repair mechanism of this utility model;

[0038] Figure 4 This is a partial structural schematic diagram of the grinding machine of this utility model.

[0039] In the figure: 1. Grinding wheel, 101. Ring-shaped body, 102. Base plate, 2. Rotating power component, 3. Bracket, 4. Drive shaft, 5. Sheath, 6. Bearing, 7. Nut, 8. Lead screw, 9. Driver, 10. Longitudinal part, 11. Transverse part, 12. Connector, 13. Fastener, 14. Gasket, 15. Clamping plate, 16. Tool holder, 17. Grinding wheel, 18. Coupling. Detailed Implementation

[0040] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0041] Example 1:

[0042] Please see Figures 1 to 4 As shown, this embodiment provides a grinding wheel repair mechanism, including: a grinding wheel 1, a rotating power component 2 connected to the grinding wheel 1 for driving the grinding wheel 1 to rotate, a bracket 3 for supporting the rotating power component 2, and a drive assembly for driving the bracket 3 to perform linear motion.

[0043] More specifically, in this embodiment, the rotating power component 2 is connected to the grinding wheel 1 via a transmission shaft 4; the outer layer of the transmission shaft 4 is fitted with a sheath 5 connected to the bracket 3; and the linear motion direction of the bracket 3 is parallel to the axial direction of the grinding wheel 1; the rotating power component 2 may be a micro motor; and the micro motor is connected to the transmission shaft 4 via a coupling 18. The sheath 5 has a hollow cavity for rotating with the transmission shaft 4, and a pair of bearings 6 are provided between the transmission shaft 4 and the hollow cavity, allowing the transmission shaft 4 to rotate smoothly within the hollow cavity of the sheath 5. The drive assembly includes a nut 7 connected to the bracket 3, a lead screw 8 cooperating with the nut 7, and a driver 9 for driving the lead screw 8 to rotate.

[0044] The driver 9 here can be a motor. The driver 9 drives the lead screw 8 to rotate, so that the lead screw nut 7 sleeved on the lead screw 8 can move along the axis of the lead screw 8. The lead screw nut 7 drives the bracket 3 connected to it to move synchronously along the axis of the lead screw 8. Therefore, the sleeve 5 connected to the bracket 3, the supporting rotating power component 2, the transmission shaft 4, and the grinding wheel 1 connected to the transmission shaft 4 move synchronously.

[0045] Based on this, it should be noted that the grinding wheel repair mechanism also includes a support seat suitable for the sheath 5 to pass through and slidingly engage with the sheath 5. The support seat has a through hole suitable for the sheath 5 to pass through and slidingly engage with the sheath 5. In detail with reference to the accompanying drawings, the support seat includes a transverse portion 11 and a longitudinal portion 10 suitable for forming an L-shaped structure; wherein the sheath 5 passes through the longitudinal portion 10; and the driver 9 is fixed on the transverse portion 11, and one end of the lead screw 8 is inserted into the longitudinal portion 10 and rotatably engages with the longitudinal portion 10.

[0046] Next, regarding the cooperation between the drive shaft 4 and the grinding wheel 1, referring to the accompanying drawings, a specific optional implementation is given. First, the grinding wheel 1 includes an annular body 101 with a hollow cavity, and a base plate 102 located at one axial end of the annular body 101; wherein the drive shaft 4 passes through the hollow cavity and is fixedly connected to the base plate 102. Second, a connector 12 is integrally provided at the end of the drive shaft 4 away from the rotating power member 2, and the base plate 102 has a connecting hole suitable for the connector 12 to pass through; and the outer diameter of the connector 12 is smaller than the outer diameter of the drive shaft 4 so that the junction of the connector 12 and the drive shaft 4 forms a stepped portion suitable for abutting against the side end face of the base plate 102 facing the hollow cavity.

[0047] Furthermore, the side of the base plate 102 facing away from the hollow cavity is also provided with a fastener 13 suitable for connection with the connector 12. The fastener 13 is adapted to abut against the side face of the base plate 102 facing away from the hollow cavity. The fastener 13 may be a screw. Based on the above structure, in an optional embodiment, a gasket 14 is also sandwiched between the stepped portion and the side face of the base plate 102 facing away from the hollow cavity; and a clamping plate 15 suitable for the fastener 13 to pass through is also provided on the side face of the base plate 102 facing away from the hollow cavity. Based on this structure, that is, the grinding wheel 1 clamps the base plate 102 of the grinding wheel 1 between the gasket 14 and the clamping plate 15 through the cooperation of the drive shaft 4 and the fastener 13, thereby achieving a reliable cooperation between the drive shaft 4 and the grinding wheel 1.

[0048] In summary, for the grinding wheel repair mechanism of this embodiment, there are two different dimensions of motion trajectories during the use of the grinding wheel 1. The drive component is used to realize the axial linear motion of the grinding wheel 1, while the rotating power component 2 is used to realize the rotational motion of the grinding wheel 1.

[0049] Example 2:

[0050] Please see Figures 1 to 4 As shown, based on the motor in Embodiment 1, this embodiment provides a grinding machine, including: a tool holder 16, a grinding wheel 17 disposed on the tool holder 16 and rotatably cooperating with the tool holder 16, and a grinding wheel repair mechanism disposed above the tool holder 16; wherein the support base is fixed on the tool holder 16; and the linear movement direction of the bracket 3 is parallel to the axial direction of the grinding wheel 17; the grinding wheel 1 is adapted to grind the outer contour edge of the grinding wheel 17.

[0051] Understandably, in order to allow the grinding wheel 17 to adjust its specific working position relative to the tool to be ground, the grinding machine in this embodiment also includes a two-dimensional drive assembly connected to the tool holder 16 for driving the tool holder 16 to move. Here, the two-dimensional drive assembly generally refers to adjusting the orientation of the tool holder 16 in two different dimensions, the X-axis and the Y-axis, so that the tool holder 16 can move relative to the tool to be ground to achieve the relative approach and relative distance between the grinding wheel 17 and the tool. When the grinding wheel 17 is close to the tool, the tool is ground; when the grinding wheel 17 is relatively far from the tool, the tool loading and unloading operations are performed.

[0052] In addition, it should be noted that the specific structure and implementation principle of the grinding wheel 17 here can adopt any mature means in the existing technology, without making any improvements to this embodiment, and therefore no specific limitations are made.

[0053] In this embodiment of the grinding machine, by fixing the support base to the tool holder 16, the corresponding grinding wheel 1 can be located above the grinding wheel 17, making the grinding wheel 1 of the grinding wheel repair mechanism suitable for grinding the outer contour edge of the grinding wheel 17. During the grinding process, the grinding wheel 17 and the grinding wheel 1 rotate synchronously, thereby repairing the worn parts of the grinding wheel 17 through the grinding wheel 1. This method avoids the cumbersome operation caused by disassembling and assembling the grinding wheel 17, and ensures that the grinding wheel 17 is always in the grinding area during repair to guarantee its accuracy. Based on this, a drive component designed to drive the support 3 to make linear motion drives the grinding wheel 1 to move along an axis parallel to the grinding wheel 17, thereby controlling the distance between the grinding wheel 1 and the grinding wheel 17. When the grinding wheel 17 does not need repair, the grinding wheel 1 is relatively far away from the grinding wheel 17; when the grinding wheel 17 needs repair, the grinding wheel 1 is close to the grinding wheel 17. Therefore, the grinding wheel 1 in this embodiment is only used when the grinding wheel 17 needs to be repaired, and will not interfere with the operation of the grinding wheel 17 when the grinding wheel 17 does not need to be repaired.

[0054] The above specific embodiments further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above are only specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0055] In the description of this utility model, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0056] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0057] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model 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 limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0058] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0059] In this invention, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

Claims

1. A grinding wheel repair mechanism, characterized in that, include: A grinding wheel, a rotating power component connected to the grinding wheel for driving the grinding wheel to rotate, a bracket for supporting the rotating power component, and a drive assembly for driving the bracket to make linear motion; The rotating power component is connected to the grinding wheel via a drive shaft; the drive shaft is fitted with a protective sleeve connected to a bracket; and The direction of the linear movement of the bracket is parallel to the axis of the grinding wheel; The drive assembly includes a lead screw connected to the bracket, a lead screw cooperating with the lead screw, and a driver for driving the lead screw to rotate. The grinding wheel repair mechanism also includes a support seat that is suitable for the sheath to pass through and slides with the sheath.

2. The grinding wheel repair mechanism according to claim 1, characterized in that, The sheath has a hollow cavity for rotatably engaging with the drive shaft; and A pair of bearings are provided between the drive shaft and the hollow cavity.

3. The grinding wheel repair mechanism according to claim 1 or 2, characterized in that, The support base has a through hole suitable for the sheath to pass through and slidingly engage with the sheath.

4. The grinding wheel repair mechanism according to claim 1 or 2, characterized in that, The grinding wheel includes an annular body with a hollow cavity and a base plate disposed at one axial end of the annular body; in The drive shaft passes through the hollow cavity and is then fixed to the base plate.

5. The grinding wheel repair mechanism according to claim 4, characterized in that, The end of the drive shaft away from the rotating power component is integrally provided with a connector, and the base plate is provided with a connecting hole suitable for the connector portion to pass through; and The outer diameter of the connector is smaller than the outer diameter of the drive shaft so that the junction of the connector and the drive shaft forms a stepped portion suitable for abutting against the side end face of the base plate facing the hollow cavity. The bottom plate is also provided with a fastener suitable for connecting to the connector on the side facing away from the hollow cavity. The fastener is suitable for abutting against the side face of the bottom plate facing away from the hollow cavity.

6. The grinding wheel repair mechanism according to claim 5, characterized in that, A gasket is also sandwiched between the stepped portion and the side end face of the base plate facing the hollow cavity; and The bottom plate is also provided with a clamping plate on the side facing away from the hollow cavity, which is suitable for fasteners to pass through.

7. The grinding wheel repair mechanism according to claim 1, characterized in that, The rotating power component employs a micro motor; and The micro motor is connected to the drive shaft via a coupling.

8. The grinding wheel repair mechanism according to claim 1, characterized in that, The support base includes a transverse portion and a longitudinal portion adapted to form an L-shaped structure; wherein The sheath passes through the longitudinal portion; and The driver is fixed on the transverse part, and one end of the lead screw is inserted into the longitudinal part and rotates with the longitudinal part.

9. A grinding machine, characterized in that, include: A tool holder, a grinding wheel mounted on the tool holder and rotatably cooperating with the tool holder, and a grinding wheel repair mechanism as described in any one of claims 1 to 7, located above the tool holder; wherein The support base is fixed on the tool holder; and The direction of the linear movement of the support is parallel to the axis of the grinding wheel; The grinding wheel is suitable for grinding the outer contour edge of the grinding wheel.

10. The grinding machine according to claim 9, characterized in that, The grinding machine also includes a two-dimensional drive assembly connected to the tool post for driving the tool post movement.

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