A high-precision and rapid positioning device for a pair of end toothed discs

Abstract

The present application belongs to the technical field of end tooth disc processing, and particularly relates to a high-precision rapid positioning device for paired end tooth discs, which comprises a clamp body mounted on a rotary table, step surfaces for placing a lifting plate, an inner tooth disc and an outer tooth disc are respectively arranged on the clamp body, the lifting plate can drive the inner tooth disc to move up and down to realize the adhesion or separation between the inner tooth disc and the outer tooth disc, an inner tooth disc positioning ring and an outer tooth disc positioning ring are respectively arranged above the inner tooth disc and the outer tooth disc, and a pressing assembly for pressing the inner tooth disc positioning ring above the inner tooth disc and pressing the outer tooth disc positioning ring above the outer tooth disc is further arranged above the inner tooth disc positioning ring and the outer tooth disc positioning ring. The present application has a simple and ingenious structure, and has been successfully applied in production practice. The tedious steps of continuous repeated alignment and debugging are saved, the clamping time is increased by 5-6 times compared with the traditional process, and the present application is particularly suitable for high-precision gap positioning of the gear grinding of grouped end tooth disc workpieces.

Description

Technical Field

[0001] This invention belongs to the field of end gear plate processing technology, specifically relating to a high-precision and rapid positioning device for paired end gear plates. Background Technology

[0002] Paired end gears are widely used, and their tooth accuracy is a key factor in ensuring the machining accuracy of CNC tool holders mounted on CNC lathes. To ensure that the tooth accuracy of the inner and outer gears meets the meshing requirements of the drawings, the inner and outer gears need to be combined and fixed with tooling for gear grinding.

[0003] However, aligning the straightness and concentricity of the teeth separately during paired grinding is complex and time-consuming. The inner and outer tooth profiles of each gear set have varying heights and errors. The traditional alignment method involves first aligning the straightness of the outer gear teeth, then ensuring the center of rotation and the center of rotation are concentric, locking the outer gear, placing the inner gear, and repeating the same steps to align the straightness and concentricity, locking the inner gear, and then checking again for any changes in the straightness and concentricity of the outer gear. Once confirmed to be unchanged, locking is performed and grinding begins. The clamping and alignment time is approximately 15-25 minutes. To reduce costs, increase efficiency, and improve product clamping efficiency, a high-precision, rapid positioning device for paired end gears was designed. This device enables rapid and accurate positioning, reducing clamping time by more than five times, thus achieving the goal of cost reduction and efficiency improvement. Summary of the Invention

[0004] The purpose of this invention is to address the defects and shortcomings in the existing technology and to provide a high-precision and rapid positioning device for paired end gear discs.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: a high-precision and rapid positioning device for paired end gear discs, comprising a clamp body mounted on a rotary table, wherein the clamp body is respectively provided with stepped surfaces for placing a lifting plate, an inner gear disc, and an outer gear disc, the lifting plate being able to drive the inner gear disc to move up and down to achieve the engagement or separation between the inner gear disc and the outer gear disc, an inner gear disc positioning ring and an outer gear disc positioning ring being respectively provided above the inner gear disc and the outer gear disc, and a clamping component being provided above the inner gear disc positioning ring and the outer gear disc positioning ring for pressing the inner gear disc positioning ring onto the inner gear disc and pressing the outer gear disc positioning ring onto the outer gear disc.

[0006] Preferably, a lifting bolt is provided above the lifting plate. The lifting bolt passes through the inner gear plate and is threadedly connected to the lifting plate. By rotating the lifting bolt, the inner gear plate can be moved up and down through the lifting plate.

[0007] Preferably, there are two lifting bolts, which are symmetrically distributed on the left and right sides.

[0008] Preferably, the outer gear disc has four first clamping screws evenly spaced along its circumference for fixing the outer gear disc to the clamp body.

[0009] Preferably, the inner toothed disc positioning ring and the outer toothed disc positioning ring are respectively provided with teeth that mesh with the inner toothed disc and the outer toothed disc.

[0010] Preferably, the outer gear plate positioning ring is provided with a horizontal straight positioning surface, and the outer gear plate positioning ring and the inner gear plate positioning ring are positioned by positioning pins.

[0011] Preferably, the clamping assembly includes a pressure cap, which extends downward along its circumference with an annular boss for clamping the positioning ring of the outer gear disc.

[0012] Preferably, an elastic clamping element is provided between the pressure cap and the inner gear plate positioning ring.

[0013] Preferably, the elastic clamping element includes a guide pin that cooperates with the positioning ring of the internal gear disc and a spring disposed on the guide pin.

[0014] Preferably, a second clamping screw is also provided through the cover, and the center of the clamp body is provided with a threaded hole that mates with the second clamping screw.

[0015] After adopting the above technical solution, the high-precision and rapid positioning device for paired end gear disks provided by the present invention has the following beneficial effects:

[0016] 1) This invention is easy to load and unload. With one clamping, the centering and orientation of two parts can be completed simultaneously. It has a long service life, low cost, and is particularly suitable for high-precision clearance positioning of gear grinding of paired end-tooth disc workpieces.

[0017] 2) The invention has a simple and ingenious structural design and has been successfully applied in production practice. It eliminates the tedious steps of repeated alignment and debugging, and improves the clamping time by 5-6 times compared with the traditional process. Attached Figure Description

[0018] Figure 1 This is a structural cross-sectional view of a high-precision and rapid positioning device for paired end gear discs according to the present invention.

[0019] Figure 2 This is a schematic diagram of the structure of a high-precision and rapid positioning device for paired end gear discs according to the present invention;

[0020] Figure 3 This is a tooling structure diagram showing the positioning of the internal and external gear disks in this invention.

[0021] The components include: clamp body 1, lifting plate 2, inner gear plate 3, outer gear plate 4, first clamping screw 5, lifting bolt 6, outer gear plate positioning ring 7, inner gear plate positioning ring 8, positioning pin 9, guide pin 10, spring 11, pressure cap 12, second clamping screw 13, and horizontal straight positioning surface 14. Detailed Implementation

[0022] The present invention will now be described more clearly and completely with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0024] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0025] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0026] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0027] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0028] like Figure 1-3 As shown, the present invention provides a high-precision and rapid positioning device for paired end gear discs, including a clamp body 1 mounted on a rotary table. The clamp body 1 coincides with the rotation center of the rotary table. The clamp body 1 is provided with stepped surfaces for placing a lifting plate 2, an inner gear disc 3, and an outer gear disc 4, and the lifting plate 2, the inner gear disc 3, and the outer gear disc 4 are all coaxially arranged with the rotary table.

[0029] The lifting plate 2 can drive the inner gear disk 3 to move up and down, so as to achieve the engagement or separation between the inner gear disk 3 and the outer gear disk 4. Specifically, the lifting plate 2 is provided with a lifting bolt 6 above it. The lifting bolt 6 passes through the inner gear disk 3 and is threadedly connected to the lifting plate 2. By rotating the lifting bolt 6, the inner gear disk 3 can be driven up and down by the lifting plate 2. Furthermore, there are two lifting bolts 6, which are symmetrically distributed on the left and right.

[0030] The outer gear disk 4 has four first clamping screws 5 evenly spaced along its circumference for fixing the outer gear disk 4 onto the clamp body 1.

[0031] An internal gear disk positioning ring 8 and an external gear disk positioning ring 7 are respectively provided above the internal gear disk 3 and the external gear disk 4. Specifically, the internal gear disk positioning ring 8 and the external gear disk positioning ring 7 are respectively provided with teeth that mesh with the internal gear disk 3 and the external gear disk 4. The external gear disk positioning ring 7 is provided with a horizontal straight positioning surface 14, and the external gear disk positioning ring 7 and the internal gear disk positioning ring 8 are positioned by a positioning pin 9. Above the internal gear disk positioning ring 8 and the external gear disk positioning ring 7, there are also provided for... A clamping assembly is formed by pressing the inner gear disk positioning ring 8 onto the inner gear disk 3 and pressing the outer gear disk positioning ring 7 onto the outer gear disk 4. The clamping assembly includes a pressure cover 12, which has an annular boss extending downward along its circumference for pressing the outer gear disk positioning ring 7. An elastic clamping element is provided between the pressure cover 12 and the inner gear disk positioning ring 8. The elastic clamping element includes a guide pin 10 that cooperates with the inner gear disk positioning ring 8 and a spring 11 provided on the guide pin 10.

[0032] The pressure cap 12 is also provided with a second clamping screw 13. The center of the clamp body 1 is provided with a threaded hole that cooperates with the second clamping screw 13. By rotating the second clamping screw 13, the outer gear plate positioning ring 7 can be pressed onto the outer gear plate 4 and the inner gear plate positioning ring 8 can be pressed onto the inner gear plate 3 through the pressure cap 12.

[0033] When using the high-precision rapid positioning device for paired end gear discs provided by this invention, first fix the fixture body 1 on the rotary table, aligning its rotation center with the rotation center of the rotary table. Then, sequentially install parts 2-13 according to their serial numbers. Screw the first clamping screw 5 into the fixture body 1 (but do not tighten it). Use the toothed inclined surface and the first clamping screw 5 for coarse positioning. Ensure the horizontal straight positioning surface 14 on the outer gear disc positioning ring 7 is parallel to the X-axis movement calibration of the equipment (see...). Figure 2 Then, slowly tighten the second clamping screw 13 to press down the cover 12. Use the outer gear plate positioning ring 7 to press the outer gear plate 4. At the same time, under the action of the spring 11, the inner gear plate positioning ring 8 moves downward to elastically press and position the inner gear plate 3. The outer gear plate positioning ring 7 and the inner gear plate positioning ring 8 are each provided with 4 teeth to position the inner and outer gear plates respectively. First, use the second clamping screw 13 to press the outer gear plate 4 onto the fixture body 1. Then, rotate the two lifting bolts 6 evenly to move the inner gear plate 3 up to be completely in contact with the reference surface of the outer gear plate 4. The positioning is completed and the four first clamping screws 5 are locked. Finally, loosen the second clamping screw 13, remove the positioning fixture, and the next grinding work can be carried out.

[0034] This invention provides a high-precision, rapid positioning device for paired end gear discs. Its simple and ingenious structural design has been successfully applied in production practice, eliminating the tedious steps of repeated alignment and adjustment, and improving clamping time by 5-6 times compared to traditional processes. This invention can be used for clamping similar grouped parts during gear grinding and has significant potential for widespread application.

[0035] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-precision, rapid positioning device for paired end-tooth discs, characterized in that, The fixture body (1) is mounted on a rotary table. The fixture body (1) is provided with stepped surfaces for placing a lifting plate (2), an inner gear plate (3), and an outer gear plate (4). The lifting plate (2) can drive the inner gear plate (3) to move up and down to achieve the engagement or separation between the inner gear plate (3) and the outer gear plate (4). An inner gear plate positioning ring (8) and an outer gear plate positioning ring (7) are respectively provided above the inner gear plate (3) and the outer gear plate (4). A clamping component is also provided above the inner gear plate positioning ring (8) and the outer gear plate positioning ring (7) for pressing the inner gear plate positioning ring (8) on the inner gear plate (3) and pressing the outer gear plate positioning ring (7) on the outer gear plate (4). The inner toothed disk positioning ring (8) and the outer toothed disk positioning ring (7) are respectively provided with teeth that mesh with the inner toothed disk (3) and the outer toothed disk (4); The outer gear disk positioning ring (7) is provided with a horizontal straight positioning surface (14), and the outer gear disk positioning ring (7) and the inner gear disk positioning ring (8) are positioned by positioning pins (9); The clamping assembly includes a pressure cap (12), which has an annular boss extending downward along its circumference for clamping the outer gear plate positioning ring (7); An elastic clamping element is provided between the pressure cap (12) and the inner gear plate positioning ring (8); A second clamping screw (13) is also provided through the cover (12), and the center of the clamp body (1) is provided with a threaded hole that cooperates with the second clamping screw (13).

2. The high-precision and rapid positioning device for paired end gear discs according to claim 1, characterized in that: The lifting plate (2) is provided with a lifting bolt (6) above it. The lifting bolt (6) passes through the inner gear plate (3) and is threadedly connected to the lifting plate (2). By rotating the lifting bolt (6), the inner gear plate (3) can be driven to move up and down by the lifting plate (2).

3. The high-precision and rapid positioning device for paired end gear discs according to claim 2, characterized in that: There are two lifting bolts (6), which are symmetrically distributed on the left and right.

4. The high-precision and rapid positioning device for paired end gear discs according to claim 1, characterized in that: The outer gear disc (4) has four first clamping screws (5) evenly spaced along its circumference for fixing the outer gear disc (4) onto the fixture body (1).

5. The high-precision and rapid positioning device for paired end gear discs according to claim 1, characterized in that: The elastic clamping element includes a guide pin (10) that cooperates with the internal gear plate positioning ring (8) and a spring (11) disposed on the guide pin (10).

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