A grinding machine assembly

Abstract

The utility model relates to grinding technology field especially relates to a grinding machine assembly. Grinding machine assembly includes grinding machine main part and workpiece support fixture, and workpiece support fixture includes support plate, and the grinding wheel and the guide wheel are arranged at the both sides of support plate respectively, and the top surface of support plate is the inclined plane, and the top surface is inclined to set up to the grinding wheel, and support plate has at least two avoidance grooves. Each avoidance groove can be used to hold the part of workpiece big outer diameter, when carrying out the processing to workpiece, can place workpiece directly on the shared support fixture with the avoidance groove number correspondence, and the part of workpiece big outer diameter is placed in the recess, and the top surface of support plate supports the part of workpiece small outer diameter, and then realizes the purpose that workpiece support fixture supports multiple workpieces, and workpiece can be in contact with guide wheel all the time to rotate relative to the grinding wheel under the drive of guide wheel, and the grinding wheel processes the part of workpiece small outer diameter simultaneously, improves the processing efficiency and concentricity.

Description

Technical Field

[0001] This utility model relates to the field of grinding technology, and in particular to a grinding machine assembly. Background Technology

[0002] A centerless grinder is a type of grinding machine that does not require workpiece axis positioning for grinding. A centerless grinder mainly consists of a grinding wheel, a guide wheel, and a workpiece support. The workpiece is placed on the workpiece support and is located between the grinding wheel and the guide wheel. The grinding wheel mainly grinds the workpiece, while the guide wheel works in conjunction with the grinding wheel to control the rotation of the workpiece and provides guidance and support for the workpiece.

[0003] When centerless grinding machines grind the small outer diameter portions at both ends of a stepped shaft, they need to grind the small outer diameter portions at both ends of the stepped shaft separately. This results in the two ends of the stepped shaft needing to be processed twice during plunge grinding, which is inefficient and has cumulative errors. On the other hand, the more efficient through grinding cannot process the smaller diameter portions at both ends of the stepped shaft. Utility Model Content

[0004] The purpose of this invention is to provide a grinding machine assembly for simultaneously grinding the small outer diameters at both ends of a stepped shaft, thereby improving grinding efficiency.

[0005] This utility model provides a grinding machine assembly, which includes:

[0006] A grinding machine body, the grinding machine body including a grinding wheel and a guide wheel, the grinding wheel and the guide wheel being arranged opposite to each other;

[0007] A workpiece support fixture includes a support plate, with a grinding wheel and a guide wheel respectively disposed on both sides of the support plate. The top surface of the support plate is an inclined surface, which is inclined towards the grinding wheel. The support plate has at least two clearance grooves, which are spaced apart. The clearance grooves are used to accommodate the large outer diameter portion of the workpiece, and the top surface is used to support the small outer diameter portions at both ends of the workpiece.

[0008] As an optional technical solution for the above-mentioned grinding machine assembly, the length of the clearance groove is L1, and the length of the large outer diameter portion of the workpiece is L2, wherein L1≥(L2+0.1)mm.

[0009] As an optional technical solution for the above-mentioned grinding machine assembly, the length of the clearance groove is adjustable.

[0010] As an optional technical solution for the above-mentioned grinding machine assembly, the support plate includes at least one fixed part and two adjusting parts, the fixed part is located between the two adjusting parts, and the distance between the fixed part and the adjusting parts is adjustable.

[0011] As an optional technical solution for the above-mentioned grinding machine assembly, the fixed part and the adjusting part are slidably connected.

[0012] As an optional technical solution for the above-mentioned grinding machine assembly, the fixing part and the adjusting part are slidably connected by a slide rail and a slider. One of the fixing part and the adjusting part is provided with a slider, and the other is provided with a slide rail. The slide rail and the slider are slidably connected.

[0013] As an optional technical solution for the above-mentioned grinding machine assembly, one of the fixing part and the adjusting part is provided with a sliding groove, and the other is provided with a sliding rod, the sliding rod extending into the sliding groove and being able to slide within the sliding groove.

[0014] As an optional technical solution for the above-mentioned grinding machine assembly, the fixing part includes a first support member and a first contact member, the first support member and the first contact member are fixedly connected, and the first support member and the first contact member form a first groove.

[0015] As an optional technical solution for the above-mentioned grinding machine assembly, the adjustment part includes a second support member and a second contact member. The second contact member is fixedly connected to the second support member, and the second support member and the second contact member form a second groove. The first groove and the second groove communicate to form the clearance groove.

[0016] As an optional technical solution for the above-mentioned grinding machine assembly, the fixing part is a convex plate, the adjusting part is a flat plate, and the fixing part and the adjusting part surround to form the clearance groove.

[0017] This utility model has at least the following beneficial effects:

[0018] Because the support plate has at least two clearance slots, each slot can accommodate the large outer diameter portion of the workpiece. During machining, workpieces corresponding to the number of clearance slots can be directly placed on the co-constructed support fixture, with the large outer diameter portion of the workpiece positioned within the slot. The top surface of the support plate supports the small outer diameter portion of the workpiece, thus achieving the purpose of supporting multiple workpieces. Furthermore, the grinding wheel and guide wheel are respectively positioned on both sides of the support plate, with the top surface of the support plate inclined towards the grinding wheel. This ensures that the workpiece remains in contact with the guide wheel, rotating relative to the grinding wheel under its drive. The grinding wheel simultaneously machines the small outer diameter portion of the workpiece, improving machining efficiency. Moreover, the simultaneous machining of both small outer diameter portions of the workpiece allows for controllable concentricity accuracy within 0.015mm. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the grinding machine assembly in an embodiment of the present invention;

[0020] Figure 2 This is a top view of the grinding machine assembly in an embodiment of the present invention;

[0021] Figure 3 This is a first structural schematic diagram of the grinding machine assembly in an embodiment of the present utility model;

[0022] Figure 4 This is a schematic diagram of the first structure of the support plate in an embodiment of this utility model;

[0023] Figure 5 This is a schematic diagram of the second structure of the support plate in an embodiment of this utility model;

[0024] Figure 6 This is a schematic diagram of the third structure of the support plate in an embodiment of this utility model.

[0025] In the picture:

[0026] 1. Grinding wheel; 2. Guide wheel; 3. Support plate; 31. Fixing part; 32. Adjusting part; 33. Clearance groove; 34. Top surface; 100. Workpiece. Detailed Implementation

[0027] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] 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. They are used only for the convenience of describing this utility model and for 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Moreover, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0031] This invention provides a grinding machine assembly that can simultaneously grind the small outer diameter portions at both ends of a stepped shaft, thereby improving the processing efficiency of the small outer diameter portions at both ends of the stepped shaft.

[0032] like Figures 1 to 4 As shown, the grinding machine assembly includes a grinding machine body and a workpiece support fixture. The grinding machine body includes a grinding wheel 1 and a guide wheel 2, which are arranged opposite to each other. The workpiece support fixture includes a support plate 3. The grinding wheel 1 and the guide wheel 2 are respectively arranged on both sides of the support plate 3. The top surface 34 of the support plate 3 is an inclined surface, which is inclined towards the grinding wheel 1. The support plate 3 has at least two clearance grooves 33, which are spaced apart. The clearance grooves 33 are used to accommodate the large outer diameter part of the workpiece 100, and the top surface 34 is used to support the small outer diameter parts at both ends of the workpiece 100.

[0033] Since the support plate 3 has at least two clearance grooves 33, each clearance groove 33 can be used to accommodate the large outer diameter portion of the workpiece 100. When machining the workpiece 100, the workpiece 100 corresponding to the number of clearance grooves 33 can be directly placed on the co-constructed support fixture, with the large outer diameter portion of the workpiece 100 placed in the groove. The top surface 34 of the support plate 3 supports the small outer diameter portion of the workpiece 100, thereby achieving the purpose of the workpiece support fixture supporting multiple workpieces 100. In addition, the grinding wheel 1 and the guide wheel 2 are respectively arranged on both sides of the support plate 3, and the top surface 34 of the support plate 3 is inclined towards the grinding wheel 1. In this way, the workpiece 100 can always be in contact with the guide wheel 2 to rotate relative to the grinding wheel 1 under the drive of the guide wheel 2. The grinding wheel 1 simultaneously machines the small outer diameter portion of the workpiece 100, improving machining efficiency. Furthermore, the simultaneous machining of the two small outer diameter portions of the workpiece 100 can control the concentricity accuracy of the outer diameters of the two small outer diameter portions within an allowable range, such as within 0.015mm. In addition, the surface roughness is also improved.

[0034] It should be noted that workpiece 100 is a stepped shaft with small outer diameters at both ends.

[0035] In some embodiments, the length of the clearance groove 33 is L1, and the length of the outer diameter portion of the workpiece 100 is L2, wherein L1 ≥ (L2 + 0.1) mm.

[0036] The above configuration allows the large outer diameter portion of the workpiece 100 to enter the clearance groove 33, and prevents the side wall of the large outer diameter portion of the workpiece 100 from rubbing against the groove wall of the clearance groove 33, thus preventing the workpiece 100 from rotating with the guide wheel 2. The clearance groove 33 also prevents the large outer diameter portion of the workpiece 100 from contacting the grinding wheel 1.

[0037] In some embodiments, the length of the clearance groove 33 is adjustable.

[0038] The length of the clearance groove 33 is adjustable, which can be used for workpieces 100 of different lengths, thereby meeting the grinding requirements of different workpieces 100. This can improve the application range of the workpiece support fixture, and there is no need to change the workpiece support fixture according to different workpieces 100.

[0039] like Figure 4 and Figure 5 As shown, in some embodiments, the support plate 3 includes at least one fixing part 31 and two adjusting parts 32, the fixing part 31 is located between the two adjusting parts 32, and the distance between the fixing part 31 and the adjusting parts 32 is adjustable.

[0040] In this way, the adjustment part 32 can move relative to the fixed part 31, thereby adjusting the distance between the fixed part 31 and the adjustment part 32. Since the fixed part 31 and the adjustment part 32 form a relief groove 33, the length of the relief groove 33 can be adjusted by moving the adjustment part 32 relative to the fixed part 31, thus meeting the support needs of workpieces 100 of different lengths.

[0041] In some other embodiments, the number of fixing parts 31 is two or more.

[0042] In some embodiments, the fixing part 31 and the adjusting part 32 are slidably connected.

[0043] The fixed part 31 and the adjusting part 32 are slidably connected, so that the vertical plane where the central axis of the fixed part 31 is located is coplanar with the vertical plane where the central axis of the adjusting part 32 is located. This prevents misalignment between the top surface 34 of the fixed part 31 and the top surface 34 of the adjusting part 32, ensuring that the workpiece 100 will not shift when the two small outer diameter parts of the workpiece 100 are supported. It also ensures that the central axis of the workpiece 100 is parallel to the central axis of the grinding wheel 1, thereby improving the machining accuracy and ensuring the coaxiality of the small outer diameter parts at both ends of the workpiece 100 after grinding.

[0044] In some embodiments, the fixing part 31 and the adjusting part 32 are slidably connected by a slide rail and a slider. One of the fixing part 31 and the adjusting part 32 is provided with a slider, and the other is provided with a slide rail. The slide rail and the slider are slidably connected.

[0045] The slide rail and slider can provide guidance for the fixed part 31 and the adjusting part 32, ensuring that the fixed part 31 and the adjusting part 32 move in a straight line and will not deviate due to relative jumping during the movement, thereby ensuring the position of the fixed part 31 and the adjusting part 32.

[0046] For example, the fixing part 31 has a storage groove on at least one side, the slider is fixed in the storage groove, the slide rail is fixedly connected to the adjusting part 32, and the slide rail is slidably connected to the slider. In this way, the slide rail and the slider limit each other to avoid relative misalignment between the fixing part 31 and the adjusting part 32. In addition, this arrangement can reduce the volume of the support plate 3 and make it applicable to a wider range of workpieces 100.

[0047] In some other embodiments, one of the fixing part 31 and the adjusting part 32 is provided with a sliding groove, and the other is provided with a sliding rod, which extends into the sliding groove and can slide within the sliding groove.

[0048] The slide bar extends into the slide groove, which allows the fixed part 31 and the adjusting part 32 to move relative to each other. In addition, the slide bar can guide and limit the fixed part 31 or the adjusting part 32, so as to prevent the fixed part 31 and the adjusting part 32 from being misaligned, thus ensuring the support effect and grinding accuracy of the workpiece 100.

[0049] In some embodiments, the fixing part 31 includes a first support member and a first contact member, the first support member and the first contact member being fixedly connected, and the first support member and the first contact member forming a first groove. The first groove has two openings, one opening facing the top of the fixing part 31 and the other opening facing the adjusting part 32.

[0050] The adjusting part 32 includes a second support member and a second contact member. The second contact member is fixedly connected to the second support member, and the second support member and the second contact member form a second groove. The first groove and the second groove communicate to form a clearance groove 33. The second groove has two openings, one of which faces the top of the adjusting part 32, and the other opening faces the fixing part 31.

[0051] The positions of the adjusting part 32 and the fixing part 31 are adjustable, thereby the distance between the vertical groove wall of the first groove and the vertical groove wall of the second groove is adjustable, thus providing support for workpieces 100 of different lengths.

[0052] In some other embodiments, the fixing part 31 is a U-shaped plate, and the adjusting part 32 is a flat plate, with the fixing part 31 and the adjusting part 32 forming a clearance groove 33. This provides support for workpieces 100 of different lengths. Of course, the fixing part 31 is a U-shaped plate, the adjusting part 32 is an L-shaped plate, and the fixing part 31 and the adjusting part 32 form a clearance groove 33.

[0053] like Figure 6 As shown, in other embodiments, the support plate 3 is an integrally formed structure, and the clearance groove 33 is obtained by machining.

[0054] Combination Figures 4 to 6 For example, the support plate 3 has two clearance grooves 33, each clearance groove 33 corresponding to a workpiece 100. The support plate 3 supports two workpieces 100 at the same time, which can simultaneously cut into and grind four small outer diameter parts. Two workpieces 100 can be processed in one clamping, increasing production efficiency by 4 times. Since the outer diameters at both ends are ground at the same clamping, the concentricity accuracy of the outer diameter can be controlled within 0.015mm (the concentricity was 0.025mm before optimization).

[0055] Furthermore, the rotational speed of grinding wheel 1 is increased from 1000-1200 rpm to 1500 rpm. Grinding wheel 1 rotates at high speed for grinding, while guide wheel 2 rotates at a slower speed in the same direction, driving workpiece 100 to rotate for circumferential feed. During plunge grinding, radial feed is achieved by moving the grinding wheel head.

[0056] After the workpiece 100 is clamped, the small outer diameter portions at both ends can be exposed simultaneously for plunge grinding; in conjunction with the workpiece support fixture, two customized narrow grinding wheels with a specific spacing and corresponding guide wheels 2 are used on the grinding machine body to achieve one-time synchronous grinding.

[0057] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A grinding machine assembly, characterized in that, include: The grinding machine body includes a grinding wheel (1) and a guide wheel (2), which are arranged opposite to each other. The workpiece support fixture includes a support plate (3), the grinding wheel (1) and the guide wheel (2) are respectively disposed on both sides of the support plate (3), the top surface (34) of the support plate (3) is an inclined surface, the top surface (34) is inclined towards the grinding wheel (1), the support plate (3) has at least two clearance grooves (33), the clearance grooves (33) are spaced apart, the clearance grooves (33) are used to accommodate the large outer diameter part of the workpiece (100), and the top surface (34) is used to support the small outer diameter parts at both ends of the workpiece (100).

2. The grinding machine assembly according to claim 1, characterized in that, The length of the clearance groove (33) is L1, and the length of the outer diameter portion of the workpiece (100) is L2, where L1 ≥ (L2 + 0.1) mm.

3. The grinding machine assembly according to claim 1, characterized in that, The length of the clearance groove (33) is adjustable.

4. The grinding machine assembly according to claim 3, characterized in that, The support plate (3) includes at least one fixing part (31) and two adjusting parts (32). The fixing part (31) is located between the two adjusting parts (32), and the distance between the fixing part (31) and the adjusting parts (32) is adjustable.

5. The grinding machine assembly according to claim 4, characterized in that, The fixing part (31) is slidably connected to the adjusting part (32).

6. The grinding machine assembly according to claim 5, characterized in that, The fixing part (31) and the adjusting part (32) are slidably connected by a slide rail slider. One of the fixing part (31) and the adjusting part (32) is provided with a slider, and the other is provided with a slide rail. The slide rail is slidably connected to the slider.

7. The grinding machine assembly according to claim 5, characterized in that, Of the fixing part (31) and the adjusting part (32), one is provided with a sliding groove and the other is provided with a sliding rod, the sliding rod extending into the sliding groove and being able to slide within the sliding groove.

8. The grinding machine assembly according to any one of claims 4-7, characterized in that, The fixing part (31) includes a first support member and a first contact member. The first support member and the first contact member are fixedly connected, and the first support member and the first contact member form a first groove.

9. The grinding machine assembly according to claim 8, characterized in that, The adjustment part (32) includes a second support member and a second contact member. The second contact member is fixedly connected to the second support member. The second support member and the second contact member form a second groove. The first groove and the second groove communicate to form the clearance groove (33).

10. The grinding machine assembly according to any one of claims 4-7, characterized in that, The fixing part (31) is a convex plate, the adjusting part (32) is a flat plate, and the fixing part (31) and the adjusting part (32) surround each other to form the clearance groove (33).

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