Auxiliary turning-over device for wandering star wheel and grinding machine

Abstract

The utility model discloses a wandering star wheel auxiliary turn-over device and a grinding miller, the wandering star wheel auxiliary turn-over device comprises a wandering star wheel body and two auxiliary turn-over plates, a plurality of positioning grooves are fixedly formed in the wandering star wheel body, and elastic clamping mechanisms used for clamping workpieces are fixedly arranged on the inner walls of the positioning grooves. The two auxiliary turning plates are arranged at the top and the bottom of the wandering star wheel body respectively, and the two auxiliary turning plates are fixedly connected through a butt joint mechanism and clamp the wandering star wheel body; by arranging the elastic clamping mechanism, a workpiece is kept stable and not prone to shaking when being ground, the grinding effect is guaranteed, in addition, the two auxiliary turning plates are arranged to stably clamp the workpiece on the wandering star wheel from the upper end and the lower end, so that when the wandering star wheel is turned over, the workpiece cannot fall off from a positioning groove, all the workpieces can be turned over at a time, and the work efficiency is improved. And the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of grinding equipment, in particular to a star wheel auxiliary turning device and a grinding machine. BACKGROUND

[0002] The product processed by the double-sided grinding machine has significant advantages in precision, efficiency, consistency and the like compared with the ordinary grinding machine, which makes the double-sided grinding machine widely used in many industrial fields. The star wheel is a common tool for positioning the product to be ground in the double-sided grinding machine. The workpiece is usually placed in the hole groove of the star wheel. The design and motion trajectory of the star wheel are like the planets revolving around the sun, so it is called "star wheel". The star wheel rotates around a center shaft while driving the workpiece to rotate around its center shaft, which can ensure that the workpiece is uniformly stressed during grinding, improve the surface quality and processing precision. Generally, a larger groove than the product shape is processed in the middle of the star wheel, and the product is placed in the groove for grinding.

[0003] In the prior art, when some small-diameter, stepped, and large-length-diameter-ratio products are ground by the double-sided grinding machine, the products will produce a large range of shaking and collision in the groove, resulting in poor grinding effect of the product surface to be ground. In addition, when the diameters of the two ends of the product are different, the two surfaces of the grinding machine used for grinding are rubbed to different degrees, which will cause the lengths of the two surfaces of the product to be ground to be different. In order to make the two surfaces grind evenly, the star wheel and the product need to be turned over and ground again. However, when the surface is changed, the product will fall out of the groove and need to be reloaded by the worker, which greatly reduces the grinding efficiency.

[0004] Therefore, it is necessary for the inventor to design a new star wheel auxiliary turning device and a grinding machine to overcome the above problems. SUMMARY

[0005] The main purpose of the present application is to provide a star wheel auxiliary turning device and a grinding machine to solve the problems of loose positioning of the product in the groove and low product turning efficiency in the related art.

[0006] In order to achieve the above purpose, in a first aspect, the present application provides a star wheel auxiliary turning device, comprising a star wheel body and two auxiliary turning plates, a plurality of positioning grooves are fixedly arranged on the star wheel body, an elastic clamping mechanism for clamping the workpiece is fixedly arranged on the inner wall of the positioning groove, two auxiliary turning plates are arranged at the top and bottom of the star wheel body respectively, and the star wheel body is clamped by the two auxiliary turning plates through the butt joint mechanism.

[0007] Preferably, the elastic clamping mechanism comprises an annular groove and an O-shaped ring, the annular groove is arranged on the inner wall of the positioning groove, and the O-shaped ring is clamped in the annular groove.

[0008] Preferably, the positioning groove is divided into a large-diameter end and a small-diameter end through a stepped surface, and the annular groove is arranged on the inner wall of the small-diameter end.

[0009] Preferably, the O-shaped ring is made of rubber and is in interference fit with the workpiece.

[0010] Preferably, the docking mechanism comprises a threaded sleeve and a screw in matched connection, the threaded sleeve is fixedly arranged on one of the auxiliary flaps, and the screw is rotatably arranged on the other auxiliary flap.

[0011] Preferably, the auxiliary flap is a hard metal sheet.

[0012] Preferably, the auxiliary flap is in an elliptical shape, the length of the major axis of the auxiliary flap is greater than the length of the planet wheel body, and the length of the minor axis of the auxiliary flap is less than the length of the planet wheel body.

[0013] Preferably, the docking mechanism is fixedly arranged at the outer end of the major axis of the auxiliary flap.

[0014] Preferably, the docking mechanism comprises two docking mechanisms, and the two docking mechanisms are symmetrically arranged at the two ends of the auxiliary flap.

[0015] In a second aspect, the application also provides a grinding machine comprising the planet wheel auxiliary turning device.

[0016] Compared with the prior art, the planet wheel auxiliary turning device has the following beneficial effects:

[0017] The elastic clamping mechanism is arranged to keep the workpiece stable and prevent it from shaking during grinding, thereby ensuring the grinding effect. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The embodiments illustrated in the drawings of the application in which several aspects are schematically shown are used to explain the application and, without limiting the application, do not constitute an improper limitation of the application. In the drawings:

[0019] Figure 1 is a whole structure diagram of the utility model;

[0020] Figure 2 is a sectional view of the present application;

[0021] Figure 3 is an exploded view of the present application Figure 2 is an exploded view of structure A in the present application;

[0022] Figure 4 is an exploded view of the present application.

[0023] 1, the star wheel body; 2, auxiliary flap; 3, positioning groove; 4, annular groove; 5, O ring; 6, large diameter end; 7, small diameter end; 8, threaded sleeve; 9, screw; 10, workpiece. DETAILED DESCRIPTION

[0024] In order to make the person skilled in the art better understand the present application, the technical scheme in the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should be within the scope of protection of the present application.

[0025] It should be noted that the terms "first", "second" and the like in the specification and the above drawings of the present application are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units need not be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0026] In the present application, the terms "up", "down", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "transverse", "longitudinal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0027] And, the above-mentioned partial terms can be used to represent other meanings in addition to the orientation or positional relationship, for example, the term "upper" can also be used to represent a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in this application can be understood according to the specific circumstances.

[0028] In addition, the meaning of the term "a plurality of" should be two and more than two.

[0029] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0030] As shown in Figures 1 to 4 A star wheel auxiliary turning device, comprising a star wheel body 1 and two auxiliary turning plates 2, a plurality of positioning grooves 3 are fixedly arranged on the star wheel body 1, the inner wall of the positioning groove 3 is fixedly provided with an elastic clamping mechanism for clamping the workpiece 10, two auxiliary turning plates 2 are arranged at the top and bottom of the star wheel body 1 respectively, and the star wheel body 1 is clamped by the butt joint mechanism fixedly connected between the two auxiliary turning plates 2.

[0031] Specifically, when the workpiece 10 is positioned in the star wheel, the workpiece 10 is inserted into the positioning groove 3, and the workpiece 10 is tightly fixed by the elastic clamping mechanism, so that it is not easy to shake in a large range during grinding. When the product needs to be turned over, one end of the star wheel is lifted or the whole is lifted. In the conventional case, the workpiece 10 is not easy to fall out of the positioning groove 3 when the star wheel is lifted slightly, and the bottom is separated from the grinding surface by a distance. Then the auxiliary turning plate 2 is inserted from the bottom of the end of the star wheel that is lifted, until the auxiliary turning plate 2 is completely placed under all the workpieces 10, and then the star wheel is placed flat. At this time, all the star wheels fall on the auxiliary turning plate 2, and then the other auxiliary turning plate 2 is placed above the star wheel and fixed by the butt joint mechanism. At this time, the two auxiliary turning plates 2 tightly clamp all the workpieces 10, and then the workpieces 10 cannot fall out of the positioning groove 3 when the star wheel is turned over. After the turning is completed, the butt joint mechanism is released to unlock the auxiliary turning plate 2, and the two auxiliary turning plates 2 are removed, and the workpiece 10 can be placed on the grinding machine again. The elastic clamping mechanism in this embodiment makes the workpiece 10 stable during grinding and prevents it from shaking, ensuring the grinding effect. In addition, the two auxiliary turning plates 2 are arranged to clamp the workpiece 10 from the top and bottom, so that the workpiece 10 cannot fall out of the positioning groove 3 when the star wheel is turned over, and all the workpieces 10 can be turned over at one time, improving the production efficiency.

[0032] The elastic clamping mechanism comprises an annular groove 4 and an O-shaped ring 5, the annular groove 4 is arranged on the inner wall of the positioning groove 3, and the O-shaped ring 5 is clamped in the annular groove 4. Specifically, the O-shaped ring 5 elastically clamps the workpiece 10, so that the workpiece 10 is not easy to shake in a large range, meanwhile, the O-shaped ring 5 can adapt to workpieces 10 with a certain range of diameter sizes, and has good adaptability, and the O-shaped ring 5 has a certain buffering effect, reducing the impact of the side wall of the positioning groove 3 on the outer periphery of the workpiece 10.

[0033] The positioning groove 3 is divided into a large-diameter end 6 and a small-diameter end 7 by a stepped surface, and the annular groove 4 is arranged on the inner wall of the small-diameter end 7. Specifically, this structure design can adapt to products with two diameters, and the workpiece 10 is clamped by the O-shaped ring 5 in the small-diameter end 7.

[0034] The material of the O-shaped ring 5 is rubber and is in interference fit with the workpiece 10. Specifically, the rubber material has strong flexibility, can adapt to a larger range of diameter sizes of the workpiece 10, and has good damping effect.

[0035] The docking mechanism comprises a threaded sleeve 8 and a screw rod 9 in matching connection, the threaded sleeve 8 is fixedly arranged on one of the auxiliary flaps 2, and the screw rod 9 is rotatably arranged on the other auxiliary flap 2. Specifically, when the two auxiliary flaps 2 are docked, the threaded sleeve 8 and the screw rod 9 are opposite, then the screw rod 9 is rotated to make them in threaded connection, until the auxiliary flap 2 above the star wheel presses the workpiece 10 tightly. The same effect can also be achieved by setting the threaded sleeve 8 to be rotatable and the screw rod 9 to be fixed, and the specific structure can be set according to the actual situation.

[0036] The auxiliary flap 2 is a hard metal sheet. Specifically, the hard metal sheet has high rigidity and is not easy to deform, and has good clamping effect on the workpiece 10. Specifically, a steel sheet can be used here. It should be noted that the edge of the hard metal sheet should be as thin as possible to facilitate the insertion of the metal sheet under the workpiece 10.

[0037] The shape of the auxiliary flap 2 is oval, the length of the long semi-axis of the auxiliary flap 2 is greater than the length of the star wheel body 1, and the length of the short semi-axis of the auxiliary flap 2 is less than the length of the star wheel body 1. Specifically, since the docking mechanism needs to be installed on the auxiliary flap 2, the maximum size needs to be greater than the diameter of the star wheel, and the auxiliary flap 2 is relatively thin and not suitable for force during turning, so the oval shape can meet the above requirements.

[0038] The docking mechanism is fixedly arranged at the outer end of the long semi-axis of the auxiliary flap 2. The docking mechanism has two, and the two docking mechanisms are symmetrically arranged at the two ends of the auxiliary flap 2. Specifically, the symmetrical arrangement of the two docking mechanisms can make the workpiece 10 be clamped more uniformly and have better effect.

[0039] In a second aspect, the application provides a grinder comprising a tumbling aid device as described above.

[0040] The above descriptions are only the preferred embodiment of the present application but not for limiting the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A planetary wheel auxiliary turning device, characterized by: The invention comprises a planetary wheel body (1) and two auxiliary flaps (2), wherein a plurality of positioning grooves (3) are fixedly provided on the planetary wheel body (1), and an elastic clamping mechanism for clamping a workpiece (10) is fixedly provided on the inner wall of the positioning groove (3), and the two auxiliary flaps (2) are respectively arranged at the top and bottom of the planetary wheel body (1), and the two auxiliary flaps (2) are fixedly connected by a docking mechanism and clamp the planetary wheel body (1).

2. The planetary wheel auxiliary turning device according to claim 1, characterized in that: The elastic clamping mechanism comprises an annular groove (4) and an O-ring (5); the annular groove (4) is formed on the inner wall of the positioning groove (3); and the O-ring (5) is clamped in the annular groove (4).

3. The planetary wheel auxiliary turning device according to claim 2, characterized in that: The positioning groove (3) is divided into a large-diameter end (6) and a small-diameter end (7) by a stepped surface, and the annular groove (4) is provided on the inner wall of the small-diameter end (7).

4. The planetary wheel auxiliary turning device according to claim 2, characterized in that: The O-ring (5) is made of rubber and has an interference fit with the workpiece (10).

5. The planetary wheel auxiliary turning device according to claim 1, characterized in that: The docking mechanism comprises a threaded sleeve (8) and a screw (9) that are connected in a matching manner, wherein the threaded sleeve (8) is fixedly arranged on one of the auxiliary flaps (2), and the screw (9) is rotatably arranged on the other auxiliary flap (2).

6. The planetary wheel auxiliary turning device according to claim 1, characterized in that: The auxiliary flap (2) is a hard metal sheet.

7. The planetary wheel auxiliary turning device according to claim 1, characterized in that: The auxiliary flap (2) is elliptical in shape, the length of the major semi-axis of the auxiliary flap (2) is greater than the length of the planetary wheel body (1), and the length of the minor semi-axis of the auxiliary flap (2) is less than the length of the planetary wheel body (1).

8. The planetary wheel auxiliary turning device according to claim 7, characterized in that: The docking mechanism is fixedly arranged at the outer end of the long semi-axis of the auxiliary flap (2).

9. The planetary wheel auxiliary turning device according to claim 5, characterized in that: There are two docking mechanisms in total, and the two docking mechanisms are symmetrically arranged at both ends of the auxiliary flap (2).

10. A grinding machine, characterized in that: It comprises a planetary wheel auxiliary turning device as described in any one of claims 1-9.

Images