Grinding wheel shaping device

Abstract

The utility model discloses a grinding wheel shaping device which comprises a transmission part, a machining part and a control part, the transmission part comprises a driving device and a driven wheel connected with the output end of the driving device, the driving device can drive the driven wheel to rotate, and the machining part comprises a swing rod and a diamond pen arranged on the swing rod. The oscillating bar can be driven by the driven wheel to axially rotate, the diamond pen can shape the grinding wheel through rotation of the oscillating bar, a control portion is arranged on the outer side of the transmission portion, the control portion can control the motion trail of the oscillating bar through programming, the output end of the control portion is connected with the driving device, and programming control is conducted on rotation motion of the oscillating bar. According to the utility model, the reshaping form of the grinding wheel is further expanded, the machining precision can be improved, and the reshaping of the grinding wheel with a complex shape can also be realized, and the utility model belongs to the technical field of grinding machining and grinding machines.

Description

Technical Field

[0001] The utility model belongs to the technical field of grinding and grinding machines, and more specifically relates to a grinding wheel shaping device. Background Art

[0002] Thread grinding equipment includes but is not limited to forming grinding equipment for processing triangular threads, trapezoidal threads, lead screws, worms and other parts. The essence of thread processing is to shape the grinding wheel according to the required thread shape, and then replicate the grinding wheel shape on the workpiece. The difficulty lies in the grinding wheel shaping.

[0003] At present, there are two ways to shape the grinding wheel: using a correction wheel of known shape to directly replicate it onto the grinding wheel by simultaneous rotation and extrusion. The advantage of this method is high molding efficiency, but the disadvantage is low replication accuracy and fast wear of the correction tool. It is only suitable for grinding wheel shaping with low precision requirements; using an arc butterfly correction tool to perform shaping by simultaneously rotating and extruding the correction tool and the grinding wheel and performing synchronous interpolation movements. This shaping method can better guarantee the shaping accuracy and the accuracy of the corrected shape for a long time, and can also perform local compensation correction. It is currently the most mainstream shaping method.

[0004] However, the above two shaping methods are limited by the manufacturing accuracy of the correction wheel. Currently, the horizontal profile in the industry can only reach 0.003mm, so it cannot meet the high-precision requirements required for processing, and it is difficult to achieve complex shape grinding wheel shaping. Utility Model Content

[0005] The main purpose of the utility model is to provide a grinding wheel shaping device, which can improve processing accuracy and realize grinding wheel shaping of complex shapes.

[0006] In order to achieve the above object, the technical solution of the utility model is:

[0007] A grinding wheel shaping device comprises a transmission part, a processing part and a control part, wherein the transmission part comprises a driving device and a driven wheel connected to the output end of the driving device, wherein the driving device can drive the driven wheel to rotate, and the processing part comprises a rocker arm and a diamond pen arranged on the rocker arm, wherein the rocker arm can rotate axially under the drive of the driven wheel, and the diamond pen can shape the grinding wheel by rotating the rocker arm. A control part is arranged on the outer side of the transmission part, wherein the control part can control the motion trajectory of the rocker arm by programming, and the output end of the control part is connected to the driving device.

[0008] In a specific embodiment of the utility model, the processing portion further comprises a shell, and top blocks are respectively provided at the upper and lower ends of the swing rod, and the swing rod can be rotatably connected to the shell through the top blocks.

[0009] In a specific embodiment of the present invention, grooves for mounting the top block are respectively provided at the upper and lower ends of the shell.

[0010] In a specific embodiment of the present invention, the driving device is vertically arranged, and a mounting plate for fixing the driving device is provided perpendicular to the side wall of the housing.

[0011] In a specific embodiment of the present invention, the transmission part further comprises a transmission belt, one end of the transmission belt is connected to the output end of the driving device, and the other end of the transmission belt is connected to the driven wheel.

[0012] In a specific embodiment of the present invention, the driven wheel is arranged at the end of the swing rod, and the transmission belt is meshingly connected to the driven wheel.

[0013] In a specific embodiment of the utility model, during the swinging process of the swing arm, the axis of the diamond pen can always remain perpendicular to the tangent of the grinding wheel correction point under the action of the control unit. During the shaping process, the control unit can keep the contact point between the diamond pen and the grinding wheel consistent.

[0014] One of the above technical solutions of the utility model has at least one of the following advantages or beneficial effects:

[0015] The utility model drives the driven wheel to drive the swing arm to rotate through a driving device, and then a diamond pen is arranged on the swing arm, and the grinding wheel is reshaped by the rotation of the diamond pen. Further, a control part is arranged on the outer side of the transmission part, and the output end of the control part is connected to the driving device, and then the rotational movement of the swing arm is programmed and controlled, thereby further expanding the achievable shaping forms of the grinding wheel, thereby not only improving the processing accuracy, but also realizing the shaping of grinding wheels with complex shapes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0017] Figure 1 This is a schematic diagram of a processing state of an embodiment of the utility model;

[0018] Figure 2 It is a front view of an embodiment of the utility model. DETAILED DESCRIPTION

[0019] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0020] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more features.

[0023] In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be internal connection between two elements, indirect connection, or an interactive relationship between two elements.

[0024] The following disclosure provides many different embodiments or examples for implementing different solutions of the present invention.

[0025] Reference Figure 1 to Figure 2 As shown, a grinding wheel shaping device includes a transmission part 1, a processing part 2 and a control part, wherein the transmission part 1 includes a driving device 11, a transmission belt 13 and a driven wheel 12 connected to the output end of the driving device 11, and the control part is located on the outside of the transmission part 1, and the output end of the control part is connected to the driving device 11.

[0026] In one embodiment of the utility model, the processing part 2 includes a rocker arm 21, a shell 23 and a diamond pen 22 arranged on the rocker arm 21, and the upper and lower ends of the rocker arm 21 are respectively provided with top blocks 3, and the two top blocks 3 are used to tighten and fix the axial spatial position of the rocker arm 21, so that the rocker arm 21 can be rotatably connected with the shell 23 through the top blocks 3, that is, the rocker arm 21 can rotate around the axis formed by the two top blocks 3.

[0027] In one embodiment of the utility model, during the swinging process of the swing arm 21, the axis of the diamond pen 22 can always remain perpendicular to the tangent of the grinding wheel correction point under the action of the control unit, and during the shaping process, the control unit can make the contact point of the diamond pen 22 and the grinding wheel consistent, so that the axis of the diamond pen 22 can change with the contour curve of the grinding wheel to be corrected, and then the tangent point of the corrected grinding wheel can adopt a fixed point on the diamond pen 22, and then the grinding wheel can be corrected in a fixed cutting direction, thereby greatly improving the accuracy of the corrected shape of the grinding wheel.

[0028] In one embodiment of the utility model, the driving device 11 is vertically arranged, and a mounting plate 5 for fixing the driving device 11 is provided perpendicular to the side wall of the outer shell 23. The driving device 11 can be a motor or other power source with a phase control function and can be connected to a CNC programming. The driving device 11 can drive the driven wheel 12 to rotate, one end of the transmission belt 13 is connected to the output end of the driving device 11, and the other end of the transmission belt 13 is connected to the driven wheel 12. The transmission belt 13 and the driven wheel 12 can be meshedly connected or connected by the friction between the transmission belt 13 and the driven wheel 12.

[0029] In one embodiment of the utility model, the driven wheel 12 is arranged at the end of the rocker arm 21, and can be specifically arranged at the top end or the bottom end of the rocker arm 21 according to the position of the driving device 11. The rocker arm 21 can independently complete the grinding wheel shaping around the axis of rotation of the two top blocks 3, or can independently cooperate with another axis of the machine tool, or cooperate with two axes at the same time, or cooperate with three axes to perform grinding wheel interpolation shaping operations.

[0030] In one embodiment of the utility model, grooves 4 for installing the top block 3 are respectively provided at the upper and lower ends of the shell 23, a concave portion or a convex portion for processing is provided on the side of the rocker arm 21, the diamond pen 22 is arranged perpendicular to the bottom surface of the part, and a cavity for axial rotation of the rocker arm 21 is provided in the shell 23, so that when the rocker arm 21 rotates axially driven by the driven wheel 12, the diamond pen 22 can shape the grinding wheel through the rotation of the rocker arm 21, and further, the motion trajectory of the rocker arm 21 can be programmed and controlled through the control unit, thereby expanding the shaping forms that can be realized by the present grinding wheel shaping device, thereby not only improving the processing accuracy, but also further shaping the grinding wheel with complex shape.

[0031] The rotation accuracy of the above operation can reach within 0.001mm, that is, the diamond pen 22 can obtain an arc contour with a contour within 0.001m during the rotation process, and then the grinding wheel shaping device can achieve ultra-high precision grinding wheel shape shaping by using the high-precision arc contour to shape the grinding wheel. It has been proved through experiments that the accuracy of the grinding wheel shaping device no longer depends on the machining accuracy of the correction tool, but on the rotation accuracy of the replica rocker arm 21 under the two top blocks 3, and it is easy to ensure the accuracy within 0.001mm runout during mechanical processing, thereby achieving a low-cost and high-precision effect.

[0032] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A grinding wheel shaping device, characterized in that: include: A transmission part (1), the transmission part (1) comprising a driving device (11) and a driven wheel (12) connected to an output end of the driving device (11), the driving device (11) being capable of driving the driven wheel (12) to rotate; A processing part (2), the processing part (2) comprising a swing rod (21) and a diamond pen (22) arranged on the swing rod (21), the swing rod (21) being capable of axially rotating under the drive of the driven wheel (12), and the diamond pen (22) being capable of trimming the grinding wheel through the rotation of the swing rod (21); A control unit is provided on the outside of the transmission unit (1), and the control unit can control the motion trajectory of the swing rod (21) through programming, and the output end of the control unit is connected to the driving device (11).

2. The grinding wheel dressing device according to claim 1, characterized in that: The processing part (2) further comprises a shell (23), and top blocks (3) are respectively provided at the upper and lower ends of the swing rod (21), and the swing rod (21) can be rotatably connected to the shell (23) via the top blocks (3).

3. The grinding wheel dressing device according to claim 2, characterized in that: The upper and lower ends of the housing (23) are respectively provided with grooves (4) for mounting the top block (3).

4. The grinding wheel dressing device according to claim 2, characterized in that: The driving device (11) is arranged vertically, and a mounting plate (5) for fixing the driving device (11) is arranged perpendicular to the side wall of the housing (23).

5. The grinding wheel dressing device according to claim 1, characterized in that: The transmission part (1) further comprises a transmission belt (13), one end of the transmission belt (13) is connected to the output end of the driving device (11), and the other end of the transmission belt (13) is connected to the driven wheel (12).

6. The grinding wheel dressing device according to claim 5, characterized in that: The driven wheel (12) is arranged at the end of the swing rod (21), and the transmission belt (13) is meshingly connected to the driven wheel (12).

7. The grinding wheel dressing device according to claim 1, characterized in that: During the swinging process of the swing rod (21), the axis of the diamond pen (22) can always remain perpendicular to the tangent of the grinding wheel correction point under the action of the control unit. During the shaping process, the control unit can keep the contact point of the diamond pen (22) and the grinding wheel consistent.

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