Positioning tool for spline chamfering

Abstract

The utility model relates to a positioning tool for spline chamfering, which comprises a mounting seat, a positioning block, a positioning block, a positioning block, a positioning block, a positioning block, a positioning block and a positioning block, and is characterized in that a reference surface is arranged on the mounting seat and is a vertical plane; the positioning structure comprises a positioning piece, a positioning pin and a positioning pin, and the positioning piece is arranged on the mounting seat; the inner spline is inserted into the positioning grooves to be limited, when the inner spline is inserted into the positioning piece, the edge, needing to be chamfered, of the inner spline is tightly attached to the positioning grooves, and the inner spline is clamped in the positioning grooves to be chamfered. At the moment, the edge needing to be chamfered is parallel to the reference surface, so that in actual use, only the reference surface needs to be adjusted to be parallel to the X axis, then the edges needing to be chamfered of all the internal splines inserted into the positioning piece are parallel to the X axis, and therefore the reference surface is adjusted to be parallel to the X axis by adjusting the mounting base at a time; and the machining conditions of all the internal splines inserted into the positioning piece each time are ensured.

Description

Technical Field

[0001] The present application relates to the technical field of spline processing, and in particular to a positioning tool for spline chamfering. Background Art

[0002] Splines are divided into internal splines and external splines. Both internal and external splines are multi-tooth parts. The splines with key teeth on the inner cylindrical surface are internal splines, and the splines with key teeth on the outer cylindrical surface are external splines. The internal splines and the external splines are splined by plugging them together. In order to facilitate the spline connection, it is often necessary to chamfer both ends of the spline.

[0003] In the prior art, internal splines are usually chamfered using CNC machine tools. In CNC machine tool processing, there are X, Y, and Z axes. Since the X, Y, and Z axes are known and commonly used standards, they are not described in detail. In the CNC machine tool, the axis of the three-jaw chuck is set in the vertical direction, and the internal spline is clamped by the three-jaw chuck, and then one of the edges of the internal spline that needs to be chamfered is adjusted to be parallel to the X-axis, and then the processing is finally performed. That is, before each internal spline is processed, one of the edges of the internal spline that needs to be chamfered needs to be adjusted to be parallel to the X-axis, which greatly reduces the processing efficiency. Summary of the invention

[0004] The embodiment of the present application provides a positioning tool for spline chamfering to solve the problem that spline chamfering requires repeated tool setting in the related art.

[0005] In a first aspect, a positioning tool for spline chamfering is provided, comprising:

[0006] A mounting seat, wherein a reference surface is provided on the mounting seat, and the reference surface is a vertical plane;

[0007] A positioning structure, the positioning structure comprising:

[0008] - a positioning member, the positioning member being arranged on the mounting seat;

[0009] - positioning grooves, the side surface of the positioning member is recessed inward to form a plurality of positioning grooves, the plurality of positioning grooves are evenly arranged around the side surface of the positioning member, and a bottom surface exists in the positioning grooves;

[0010] The positioning groove is used for inserting a key tooth. When the key tooth is inserted into the positioning groove, the key tooth engages with the positioning groove, and a bottom surface of the positioning groove is parallel to the reference surface.

[0011] In some embodiments, an edge of one end of the positioning member away from the mounting seat is a beveled edge.

[0012] In some embodiments, the positioning structure further includes a connecting member;

[0013] The connecting member is movably connected to the positioning member, and the connecting member can be inserted into the mounting seat.

[0014] In some embodiments, the positioning structure further includes an adjustment member and an adjustment slot;

[0015] The adjusting member is arranged at one end of the connecting member facing the positioning member, the adjusting slot is arranged at one end of the positioning member facing the connecting member, and the adjusting member can be inserted into the adjusting slot.

[0016] In some embodiments, the connecting member extends toward the positioning member and forms a boss, and the boss is slidably connected in the positioning member.

[0017] In some embodiments, the connecting member is bolted to the mounting seat.

[0018] An embodiment of the present application provides a positioning tool for spline chamfering. Since the internal spline in the present application is limited by being inserted into a positioning groove, when the internal spline is inserted into the positioning piece, the edge of the internal spline that needs to be chamfered is close to the positioning groove. At this time, the edge that needs to be chamfered is parallel to the reference surface. Therefore, in actual use, it is only necessary to adjust the reference surface to be parallel to the X-axis. Then, all the edges of the internal splines that need to be chamfered inserted in the positioning piece are parallel to the X-axis. Therefore, the present application adjusts the reference surface to be parallel to the X-axis by adjusting the mounting seat once, thereby ensuring the processing conditions of all internal splines inserted in the positioning piece each time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 A schematic diagram of the structure provided for an embodiment of the present application;

[0021] Figure 2 A structural schematic diagram of a mounting base is provided for an embodiment of the present application;

[0022] Figure 3 A schematic diagram of the structure of a positioning member is provided for an embodiment of the present application;

[0023] Figure 4 A structural cross-sectional view of a positioning member is provided for an embodiment of the present application;

[0024] Figure 5 A schematic diagram of the structure of a connector is provided for an embodiment of the present application;

[0025] Figure 6 for Figure 1 A magnified view of the structure at center;

[0026] Figure 7 for Figure 4 Enlarged view of the structure at point B in the middle.

[0027] In the figure: 1, mounting seat; 2, reference surface; 3, positioning structure; 31, positioning member; 32, positioning groove; 33, bottom surface; 34, connecting member; 35, adjusting member; 36, adjusting groove; 4, boss. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0029] The embodiment of the present application provides a positioning tool for spline chamfering, which can solve the problem of repeated tool alignment required for spline chamfering in the related art.

[0030] See also Figures 1 to 7 A positioning tool for spline chamfering, comprising: a mounting seat 1, a positioning structure 3, a reference surface 2 being provided on the mounting seat 1, the reference surface 2 being a vertical plane, the positioning structure 3 comprising a positioning member 31 and a positioning groove 32, the positioning member 31 being provided on the mounting seat 1, the side surface of the positioning member 31 being recessed inward to form a plurality of positioning grooves 32, the plurality of positioning grooves 32 being uniformly arranged in a circumferential direction around the side surface of the positioning member 31, and a bottom surface 33 being provided in the positioning groove 32;

[0031] The positioning member 31 matches the size of the internal spline to be chamfered, and the positioning groove 32 is used for the key tooth to be inserted. When the key tooth is inserted into the positioning groove 32, the key tooth is engaged with the positioning groove 32, and the bottom surface 33 of the positioning groove 32 is parallel to the reference surface 2;

[0032] The mounting seat 1 is a disc structure, and an opening is provided on the side of the mounting seat 1 to form a reference surface 2. Figure 1 As shown, the positioning member 31 is a cylindrical structure, the number of the positioning grooves 32 matches the number of key teeth of the internal spline to be processed, and the surrounding positioning grooves 32 are evenly arranged around the side of the positioning member 31.

[0033] During the implementation process, the positioning structure 3 is first installed on the mounting seat 1 to form a positioning fixture, and the bottom surface 33 of one of the positioning grooves 32 is parallel to the reference surface 2, and then the entire positioning fixture is placed on the three-jaw chuck, and then the mounting seat 1 is rotated to adjust the reference surface 2 to be parallel to the X-axis, and then the mounting seat 1 is clamped by the clamping claws to fix the positioning structure 3 of the present application;

[0034] After the positioning structure 3 is fixed as required, the internal spline is installed in the positioning structure 3. At this time, the key teeth of the internal spline are inserted into the positioning groove 32, that is, there must be an edge of the key teeth of the internal spline to be chamfered parallel to the reference surface 2 and the X-axis, which meets the processing conditions of the internal spline, so that when processing the internal spline, it is only necessary to adjust the positioning structure 3 once.

[0035] Furthermore, in this embodiment, the edge of one end of the positioning member 31 away from the mounting seat 1 is a beveled edge;

[0036] When the internal spline is installed on the positioning piece 31, if there is no bevel, the position of the internal spline teeth needs to be completely aligned with the position of the positioning groove 32 before the internal spline teeth can be inserted into the positioning groove 32. After the edge of the positioning piece 31 away from the mounting seat 1 is set as a bevel, the internal spline teeth can slide from the bevel into the positioning groove 32, which greatly improves the efficiency of inserting the internal spline teeth into the positioning groove 32.

[0037] Furthermore, in this embodiment, the positioning structure 3 further includes a connecting member 34;

[0038] The connecting member 34 is movably connected to the positioning member 31, and the connecting member 34 can be inserted into the mounting seat 1. The connecting member 34 is bolted to the mounting seat 1;

[0039] A connecting groove for inserting the connecting piece 34 is opened on the mounting base 1, and a bolt is provided at the bottom of the mounting base 1. The bolt passes through the connecting groove and is inserted into the connecting block to fix the connecting block in the connecting groove. At the same time, the connecting block is movably connected to the positioning piece 31, and the positioning piece 31 is installed on the mounting base 1. Therefore, the connecting piece 34 can be separated from the mounting base 1 by removing the bolt, so that when the connecting piece 34 is damaged, it is convenient for the staff to replace it.

[0040] Specifically, in this embodiment, the positioning structure 3 further includes an adjustment member 35 and an adjustment slot 36;

[0041] The adjusting member 35 is disposed at one end of the connecting member 34 facing the positioning member 31 , and the adjusting slot 36 is disposed at one end of the positioning member 31 facing the connecting member 34 , and the adjusting member 35 can be inserted into the adjusting slot 36 ;

[0042] The adjusting member 35 is a strip-shaped structure. The adjusting member 35 is arranged in a circular ring on the mounting seat 1. A cylinder is provided in the middle of the adjusting member 35. The adjusting member 35 is arranged close to the cylinder. When the adjusting member 35 is inserted into the adjusting groove 36, the cylinder can serve as a support for the adjusting member 35 to strengthen the strength of the adjusting member 35, thereby preventing the positioning member 31 from rotating due to the breaking or bending of the adjusting member 35 during processing.

[0043] Lift the positioning member 31 upward, and the adjusting member 35 is separated from the adjusting slot 36. When the positioning member 31 is released, the adjusting member 35 is inserted into the adjusting slot 36. When the adjusting member 35 is inserted into the adjusting slot 36, the positioning member 31 is fixed on the mounting seat 1, and the bottom surface 33 of one positioning slot 32 is parallel to the reference surface 2.

[0044] In the present application, the positioning member 31 and the connecting member 34 are of detachable design, that is, the adjusting member 35 is inserted into the adjusting slot 36 for fixing, so that the staff can replace the positioning members 31 of different sizes according to the internal splines of different sizes.

[0045] More specifically, in this embodiment, the connecting member 34 extends toward the positioning member 31 and forms a boss 4, and the boss 4 is slidably connected in the positioning member 31;

[0046] A corresponding socket is provided on the positioning member 31. When the positioning member 31 is installed on the connecting member 34, the boss 4 is inserted into the socket. The boss 4 is another structure that plays a positioning role besides the adjusting member 35, thereby improving the stability of the positioning member 31 on the connecting member 34.

[0047] Here’s how this application works:

[0048] Before installing the processing structure, it needs to be assembled. First, the connecting member 34 is installed on the mounting seat 1 by bolts, and then the positioning member 31 matching the size of the internal spline to be chamfered is selected, and then the positioning member 31 is installed on the connecting member 34. At this time, the bottom surface 33 of one of the positioning grooves 32 is parallel to the reference surface 2;

[0049] Place the installed processing structure on the three-jaw chuck, and then adjust the reference surface 2 to be parallel to the X-axis. After the processing structure is adjusted once, the edge to be processed of the internal spline to be processed inserted on the processing structure is parallel to the reference surface 2.

[0050] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0051] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0052] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A positioning tool for spline chamfering, characterized in that: include: A mounting seat (1), wherein a reference surface (2) is present on the mounting seat (1), and the reference surface (2) is a vertical plane; A positioning structure (3), wherein the positioning structure (3) comprises: - a positioning member (31), wherein the positioning member (31) is arranged on the mounting seat (1); - positioning grooves (32), the side surface of the positioning member (31) is recessed inward to form a plurality of positioning grooves (32), the plurality of positioning grooves (32) are evenly arranged around the side surface of the positioning member (31), and a bottom surface (33) is present in the positioning grooves (32); The positioning groove (32) is used for inserting a key tooth. When the key tooth is inserted into the positioning groove (32), the key tooth engages with the positioning groove (32), and a bottom surface (33) of the positioning groove (32) is parallel to the reference surface (2).

2. The positioning tool for spline chamfering according to claim 1, characterized in that: An edge of one end of the positioning member (31) away from the mounting seat (1) is a beveled edge.

3. The positioning tool for spline chamfering according to claim 1, characterized in that: The positioning structure (3) also includes a connecting member (34); The connecting member (34) is movably connected to the positioning member (31), and the connecting member (34) can be inserted into the mounting seat (1).

4. The positioning tool for spline chamfering according to claim 3, characterized in that: The positioning structure (3) also includes an adjustment member (35) and an adjustment slot (36); The adjusting member (35) is arranged at one end of the connecting member (34) facing the positioning member (31), the adjusting groove (36) is arranged at one end of the positioning member (31) facing the connecting member (34), and the adjusting member (35) can be inserted into the adjusting groove (36).

5. The positioning tool for spline chamfering according to claim 3, characterized in that: The connecting member (34) extends in the direction of the positioning member (31) and forms a boss (4), and the boss (4) is slidably connected in the positioning member (31).

6. The positioning tool for spline chamfering according to claim 3, characterized in that: The connecting piece (34) is bolted to the mounting seat (1).

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