Spline shaft machining tool

Abstract

The utility model discloses a spline shaft machining tool which comprises a workbench, a shaft body clamping seat and a shaft end clamping seat. The shaft body clamping seat comprises a shaft body supporting seat and a pressing block; the shaft end clamping seat comprises a positioning connecting seat and a shaft end radial positioning piece, a first positioning inserting part is arranged on the positioning connecting seat, the shaft end radial positioning piece coaxially sleeves the end part of the spline shaft, a plurality of second positioning inserting parts are arranged on the shaft end radial positioning piece at intervals in a surrounding manner in the circumferential direction of the shaft end radial positioning piece, and the second positioning inserting parts are matched with the first positioning inserting parts in an inserting manner. According to the spline shaft machining tool, the shaft body supporting base and the pressing block are arranged on the workbench, the shaft end radial positioning piece is arranged at the end of the spline shaft in a sleeved mode, and therefore when second positioning inserting parts at different positions on the shaft end radial positioning part are connected with first positioning inserting parts on the positioning connecting base in an inserted mode, the shaft end radial positioning piece can be clamped. Different to-be-machined faces of the spline shaft can face upwards, so that the tool bit can machine the different to-be-machined faces on the spline shaft.

Description

Technical Field

[0001] The utility model relates to the technical field of spline shaft processing, in particular to a spline shaft processing tool. Background Art

[0002] Spline shafts are typically machined using gear hobbing and gear shaping machines. Large spline shafts cannot be machined using traditional gear hobbing and gear shaping machines, so custom-made large gear hobbing machines are often required. These large gear hobbing machines are expensive, and as society progresses, the required water pumps are getting larger and larger, and the length and diameter of the main shafts are also increasing, with diameters reaching 200-400mm and lengths reaching 3000-5000mm. It is difficult to find general-purpose machine tools and processes for these machines in China. This creates an urgent need for the development of new processing techniques and tooling to process large spline shafts. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a spline shaft processing tool, the specific technical solution is:

[0004] A spline shaft processing tool, comprising:

[0005] Workbench;

[0006] A shaft clamping seat is provided on the workbench and comprises a shaft support seat and a pressing block, wherein the pressing block is used to press the spline shaft onto the shaft support seat;

[0007] The shaft end clamping seat includes a positioning connecting seat and a shaft end radial positioning piece. The positioning connecting seat is arranged on the workbench. The positioning connecting seat is provided with a first positioning plug-in portion. The shaft end radial positioning piece is coaxially sleeved on the end of the spline shaft. The shaft end radial positioning piece is provided with multiple second positioning plug-in portions spaced around its circumference. The second positioning plug-in portions are plugged into and matched with the first positioning plug-in portion.

[0008] Preferably, the shaft end radial positioning member is a spline positioning gear, and a positioning tooth groove is formed between any two adjacent teeth on the spline positioning gear, and the positioning tooth groove forms the second positioning plug-in portion.

[0009] Preferably, a positioning block is provided on the positioning connection seat, the cross-sectional profile of the positioning block is adapted to the cross-sectional profile of the positioning tooth groove, and the positioning block forms the first positioning plug-in portion.

[0010] Preferably, the shaft end clamping seat further includes a positioning and pressing assembly, and the positioning and pressing assembly includes:

[0011] an abutting portion, provided at an end of the second positioning plug-in portion away from the first positioning plug-in portion;

[0012] A support block is provided on the positioning connection seat;

[0013] A clamping bolt is threadedly connected to the support block and abuts against the abutting portion to press the second positioning plug-in portion onto the first positioning plug-in portion.

[0014] Preferably, the shaft end clamping seat further includes a shaft end axial positioning member, and the shaft end axial positioning member includes:

[0015] A positioning groove is provided on the positioning connecting seat;

[0016] A positioning bolt, one end of which is threadedly connected to the end of the spline shaft and the other end of which is overlapped in the positioning groove;

[0017] A positioning nut is threadedly sleeved on the positioning bolt and abuts against an end of the outer side of the positioning groove away from the head of the positioning bolt.

[0018] Preferably, a limiting groove is provided at the shaft end of the spline shaft, and a limiting key is provided on the inner side of the radial positioning piece at the shaft end, and the limiting key is plugged into and fits into the limiting groove.

[0019] Preferably, the shaft support seat is "V"-shaped iron.

[0020] Preferably, it also includes:

[0021] A shaft support base fixing assembly, used for fixing the shaft support base on the workbench;

[0022] The positioning connection seat fixing assembly is used to fix the positioning connection seat on the workbench.

[0023] Preferably, the shaft support seat fixing assembly includes:

[0024] A first supporting block is provided on the workbench;

[0025] a first fixing plate, one end of which overlaps the first supporting block, and the other end of which overlaps the shaft support seat;

[0026] A first fixing bolt has one end connected to the first fixing plate and the other end connected to the workbench.

[0027] Preferably, the positioning connector fixing assembly includes:

[0028] A second supporting block is provided on the workbench;

[0029] a second fixing plate, one end of which overlaps the second supporting block, and the other end of which overlaps the positioning connecting seat;

[0030] A second fixing bolt has one end connected to the second fixing plate and the other end connected to the workbench.

[0031] The utility model provides a spline shaft processing tool, which arranges a shaft support seat and a clamping block on the workbench so that the spline shaft can be fixed on or removed from the workbench, and by sleeve-arranging a shaft end radial positioning piece on the end of the spline shaft, when the second positioning plug-in parts at different positions on the shaft end radial positioning part are plugged into the first positioning plug-in part on the positioning connecting seat, the different surfaces to be processed of the spline shaft can face upward, so that the tool head can process the different surfaces to be processed on the spline shaft, thereby solving the technical problems in the background technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 A schematic diagram of the three-dimensional structure of a spline shaft processing tool provided in an embodiment of the present utility model;

[0034] Figure 2 for Figure 1 A partial enlarged view of part A;

[0035] Figure 3 A schematic diagram of the three-dimensional structure of the shaft end clamping seat provided in an embodiment of the present utility model;

[0036] Figure 4 A front view of the shaft end clamping seat provided in an embodiment of the utility model;

[0037] Figure 5 A side view of the shaft end clamping seat provided in an embodiment of the present utility model.

[0038] Reference numerals

[0039] 100-spline shaft; 110-limiting groove;

[0040] 1- Workbench;

[0041] 2-axis clamping seat; 21-axis support seat; 22-pressing block;

[0042] 3 - Shaft end clamping seat; 31 - Positioning connection seat; 311 - First positioning plug-in portion; 32 - Shaft end radial positioning member; 321 - Second positioning plug-in portion; 322 - Limit key; 33 - Positioning and clamping assembly; 331 - Abutment portion; 332 - Support block; 333 - Clamping bolt; 34 - Shaft end axial positioning member; 341 - Positioning groove; 342 - Positioning bolt; 343 - Positioning nut;

[0043] 4-axis support seat fixing assembly; 41-first support block; 42-first fixing plate; 43-first fixing bolt;

[0044] 5-positioning connecting seat fixing assembly; 51-second supporting block; 52-second fixing plate; 53-second fixing bolt. DETAILED DESCRIPTION

[0045] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the scope of protection of the present invention.

[0046] It should be noted that similar reference numerals denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in the subsequent drawings.

[0047] It should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate and simplify the description of the utility model and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the utility model. Furthermore, the terms "first" and "second," etc., are used solely for distinction and should not be construed as indicating or implying relative importance.

[0048] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0049] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0050] See Figures 1 to 5 This embodiment provides a spline shaft processing tool, including a workbench 1, a shaft body clamping seat 2 and a shaft end clamping seat 3.

[0051] The shaft clamping seat 2 is provided on the workbench 1 , and includes a shaft support seat 21 and a pressing block 22 . The pressing block 22 is used to press the spline shaft 100 onto the shaft support seat 21 .

[0052] The shaft end clamping seat 3 includes a positioning connecting seat 31 and a shaft end radial positioning piece 32. The positioning connecting seat 31 is arranged on the workbench 1. A first positioning plug-in portion 311 is provided on the positioning connecting seat 31. The shaft end radial positioning piece 32 is coaxially sleeved on the end of the spline shaft 100. The shaft end radial positioning piece 32 is provided with a plurality of second positioning plug-in portions 321 arranged around its circumference at intervals. The second positioning plug-in portion 321 is plugged into and matched with the first positioning plug-in portion 311.

[0053] Among them, when the spline shaft 100 needs to be processed, the shaft end radial positioning piece 32 can be sleeved on the end of the spline shaft 100, and then the spline shaft 100 can be placed on the shaft support seat 21. After the position is corrected, the shaft support seat 21 can be fixed on the workbench 1, and then the positioning connecting seat 31 is installed on the workbench 1, so that the second positioning plug-in portion 321 is plugged into the first positioning plug-in portion 311, and then the pressing block 22 and the shaft support seat 21 are fixed, so that the shaft body of the spline shaft 100 is fixed on the shaft support seat 21, and the cutter head can align the spline shaft 100. 0 for processing. After processing one surface, the clamping block 22 is removed from the shaft support seat 21, and the shaft end radial positioning member 32 is rotated again so that the adjacent second positioning plug-in portion 321 continues to be inserted into the first positioning plug-in portion 311. When the shaft end radial positioning member 32 rotates, it drives the spline shaft 100 to rotate so that the next surface to be processed faces upward. The clamping block 22 and the shaft support seat 21 are continued to be fixed, and the cutter head can continue to process the next surface of the spline shaft 100. The steps of rotation, fixing, processing, and removal are repeated in sequence until all surfaces on the spline shaft 100 are processed. It should be noted that after the shaft end radial positioning member 32 is sleeved on the end of the spline shaft 100, the positions of the second positioning plug-in portions 321 on the second positioning plug-in portion 321 correspond to the surfaces to be processed on the spline shaft 100, so that when the second positioning plug-in portion 321 is inserted into the first positioning plug-in portion 311, the cutter head can accurately process the surfaces to be processed on the spline shaft 100.

[0054] The present embodiment provides a spline shaft processing tool, which arranges a shaft support seat 21 and a clamping block 22 on the workbench 1, so that the spline shaft 100 can be fixed on or removed from the workbench 1, and by sleeve-arranging a shaft end radial positioning piece 32 on the end of the spline shaft 100, when the second positioning plug-in portion 321 at different positions on the shaft end radial positioning portion 32 is plugged into the first positioning plug-in portion 311 on the positioning connecting seat 31, different surfaces to be processed of the spline shaft 100 can face upward, so that the tool head can process different surfaces to be processed on the spline shaft 100, thereby solving the technical problems in the background technology.

[0055] Further, see Figure 3 and Figure 4 The radial positioning member 32 at the shaft end is a spline positioning gear. A positioning tooth groove is formed between any two adjacent teeth on the spline positioning gear, and the positioning tooth groove forms a second positioning plug-in portion 321.

[0056] Among them, the number of positioning teeth needs to be greater than the number of surfaces to be processed on the spline shaft 100. When a surface on the spline shaft 100 needs to be processed, the second positioning plug-in part 321 at the corresponding position on the shaft end radial positioning member 32 can be plugged into the first positioning plug-in part 311.

[0057] For further information, please see Figure 3 and Figure 4 A positioning block is provided on the positioning connection seat 31 , the cross-sectional profile of the positioning block is adapted to the cross-sectional profile of the positioning tooth groove, and the positioning block forms a first plug-in portion 311 .

[0058] For further information, please see Figure 3 and Figure 4 The shaft end clamping seat 3 also includes a positioning and pressing assembly 33, which includes an abutment portion 331, a support block 332 and a pressing bolt 333.

[0059] The abutting portion 331 is disposed at an end of the second positioning inserting portion 321 away from the first positioning inserting portion 311 .

[0060] The supporting block 332 is disposed on the positioning connection seat 31 .

[0061] The pressing bolt 333 is threadedly connected to the supporting block 332 and abuts against the abutting portion 331 to press the second positioning inserting portion 321 onto the first positioning inserting portion 311 .

[0062] Before the spline shaft 100 is fixed to the shaft support seat 21, the second positioning plug-in portion 321 can be pressed against the first positioning plug-in portion 311 to fix the spline positioning gear. One side of the spline positioning gear tooth is beveled to form an abutment portion 331, and the abutment portion 331 is parallel to the other side of the tooth. When the clamping bolt 333 is tightened, one end of the clamping bolt 333 abuts the abutment portion 331, so that the spline positioning gear tooth is pressed against the first positioning plug-in portion 311, that is, the first positioning plug-in portion 311 is pressed against the second positioning plug-in portion 321, eliminating the gap between the spline positioning gear and the first positioning plug-in portion 311, and fixing the spline positioning gear.

[0063] Further, see Figure 3 and Figure 5 The shaft end clamping seat 3 also includes a shaft end axial positioning member 34 , and the shaft end axial positioning member 34 includes a positioning groove 341 , a positioning bolt 342 and a positioning nut 343 .

[0064] The positioning groove 341 is disposed on the positioning connection seat 31 .

[0065] One end of the positioning bolt 342 is threadedly connected to the end of the spline shaft 100 , and the other end is overlapped in the positioning groove 341 .

[0066] The positioning nut 343 is threadedly sleeved on the positioning bolt 342 and abuts against the outer side of the positioning groove 341 away from the head of the positioning bolt 342 .

[0067] Among them, before fixing the spline positioning gear, the positioning bolt 342 can be connected to the end of the spline shaft 100 and fixed on the positioning groove 341 to limit the axial movement of the spline shaft 100. When fixing the positioning bolt 342, the head of the positioning bolt 342 and the positioning nut 343 are respectively locked and abutted against both sides of the positioning groove 341.

[0068] Further, see Figure 2 and Figure 3 The spline shaft 100 has a limit groove 110 at its end, and a limit key 322 is provided on the inner side of the shaft end radial positioning member 32 . When the shaft end radial positioning member 32 is installed on the end of the spline shaft 100 , the limit key 322 is plugged into and fits into the limit groove 110 .

[0069] Furthermore, the shaft support seat 21 is a “V”-shaped iron, which facilitates the positioning of the spline shaft 100 .

[0070] Furthermore, it also includes an axle support seat fixing component 4 and a positioning connection seat fixing component 5.

[0071] The shaft support seat fixing assembly 4 is used to fix the shaft support seat 21 on the workbench 1 .

[0072] The positioning connection seat fixing assembly 5 is used to fix the positioning connection seat 31 on the workbench 1 .

[0073] After the spline positioning gear is fixed, the positioning connection seat 31 can be fixed on the workbench 1 through the positioning connection seat fixing assembly 5 .

[0074] Further, see Figure 2 The shaft support seat fixing assembly 4 includes a first supporting block 41, a first fixing plate 42 and a first fixing bolt 43.

[0075] The first supporting block 41 is disposed on the workbench 1 .

[0076] One end of the first fixing plate 42 overlaps the first supporting block 41 , and the other end overlaps the shaft support seat 21 .

[0077] One end of the first fixing bolt 43 is connected to the first fixing plate 42 , and the other end is connected to the workbench 1 .

[0078] The height of the first supporting block 41 can be consistent with the height of the shaft support seat 21 . When the first fixing bolt 43 is tightened, the shaft support seat 21 can be fixed on the workbench 1 .

[0079] For further information, please see Figure 2 The positioning connection seat fixing assembly 5 includes a second supporting block 51 , a second fixing plate 52 and a second fixing bolt 53 .

[0080] The second supporting block 51 is disposed on the workbench 1 .

[0081] One end of the second fixing plate 52 overlaps the second supporting block 51 , and the other end overlaps the positioning connection seat 31 .

[0082] One end of the second fixing bolt 53 is connected to the second fixing plate 52 , and the other end is connected to the workbench 1 .

[0083] The height of the second supporting block 51 may be consistent with the height of the positioning connection seat 31 . When the second fixing bolt 53 is tightened, the positioning connection seat 31 may be fixed on the workbench 1 .

[0084] Working principle:

[0085] The spline processing tool provided in this embodiment specifically includes the following steps during installation:

[0086] 1. Sleeve the shaft end radial positioning piece 32 onto the end of the spline shaft 100.

[0087] 2. Place the spline shaft 100 on the shaft support seat 21.

[0088] 3. Correct position.

[0089] 4. Fix the shaft support seat 21 on the workbench 1 through the shaft support seat fixing assembly 4.

[0090] 5. Install the positioning connector 31 on the workbench 1 so that the second positioning connector 321 is plugged into the first positioning connector 311 .

[0091] 6. Connect the positioning bolt 342 to the end of the spline shaft 100 and fix it on the positioning groove 341 to limit the axial movement of the spline shaft 100.

[0092] 7. Tighten the clamping bolt 333 to press the second positioning insert 321 onto the first positioning insert 311 to fix the spline positioning gear.

[0093] 8. Fix the positioning connection seat 31 on the workbench 1 through the positioning connection seat fixing assembly 5.

[0094] 9. Fix the pressing block 22 and the shaft support seat 21 so that the spline shaft 100 is fixed on the shaft support seat 21, and the tool head processes the spline shaft 100.

[0095] 10. Disengage the positioning bolt 342 from the positioning groove 341 and loosen the clamping bolt 333 to separate the spline positioning gear from the positioning connection seat 31, remove the clamping block 22 from the shaft support seat 21, rotate the spline shaft 100 one side, and align the second positioning plug-in part 321 at another position with the first positioning plug-in part 311.

[0096] 11. Repeat steps 6, 7, 9 and 10 until the spline grooves on all sides of the spline shaft 100 are milled, the inspection is passed, and the processing is completed.

[0097] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.

[0098] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation method of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the scope of protection of the present utility model.

Claims

1. A spline shaft processing tool, characterized in that: include: Workbench (1); A shaft clamping seat (2) is provided on the workbench (1), comprising a shaft support seat (21) and a pressing block (22), wherein the pressing block (22) is used to press the spline shaft (100) onto the shaft support seat (21); The shaft end clamping seat (3) comprises a positioning connecting seat (31) and a shaft end radial positioning member (32), wherein the positioning connecting seat (31) is arranged on the workbench (1), and a first positioning plug-in portion (311) is provided on the positioning connecting seat (31), and the shaft end radial positioning member (32) is coaxially sleeved on the end of the spline shaft (100), and the shaft end radial positioning member (32) is provided with a plurality of second positioning plug-in portions (321) spaced around the circumference thereof, and the second positioning plug-in portions (321) are plugged into and matched with the first positioning plug-in portion (311).

2. The spline shaft processing tool according to claim 1, characterized in that: The shaft end radial positioning member (32) is a spline positioning gear, and a positioning tooth groove is formed between any two adjacent teeth on the spline positioning gear, and the positioning tooth groove forms the second positioning plug-in portion (321).

3. The spline shaft processing tool according to claim 2, characterized in that: A positioning block is provided on the positioning connection seat (31), the cross-sectional profile of the positioning block is adapted to the cross-sectional profile of the positioning tooth groove, and the positioning block forms the first positioning plug-in portion (311).

4. The spline shaft processing tool according to claim 1, characterized in that: The shaft end clamping seat (3) further includes a positioning and pressing assembly (33), and the positioning and pressing assembly (33) includes: an abutting portion (331) provided at an end of the second positioning plug-in portion (321) away from the first positioning plug-in portion (311); A support block (332) is provided on the positioning connection seat (31); A clamping bolt (333) is threadedly connected to the support block (332) and abuts against the abutting portion (331) to press the second positioning plug-in portion (321) against the first positioning plug-in portion (311).

5. The spline shaft processing tool according to claim 1, characterized in that: The shaft end clamping seat (3) further includes a shaft end axial positioning member (34), and the shaft end axial positioning member (34) includes: A positioning groove (341) is provided on the positioning connection seat (31); A positioning bolt (342), one end of which is threadedly connected to the end of the spline shaft (100) and the other end of which is overlapped in the positioning groove (341); A positioning nut (343) is threadedly sleeved on the positioning bolt (342) and abuts against an end of the outer side of the positioning groove (341) away from the head of the positioning bolt (342).

6. The spline shaft processing tool according to claim 1, characterized in that: The spline shaft (100) is provided with a limiting groove (110) at the shaft end, and a limiting key (322) is provided on the inner side of the shaft end radial positioning member (32), and the limiting key (322) is plugged into and matched with the limiting groove (110).

7. The spline shaft processing tool according to claim 1, characterized in that: The shaft support seat (21) is a "V"-shaped iron.

8. The spline shaft processing tool according to any one of claims 1 to 7, characterized in that: Also includes: An axle support seat fixing assembly (4) for fixing the axle support seat (21) on the workbench (1); A positioning connection seat fixing assembly (5) is used to fix the positioning connection seat (31) on the workbench (1).

9. The spline shaft processing tool according to claim 8, characterized in that: The shaft support seat fixing assembly (4) comprises: A first supporting block (41) is provided on the workbench (1); A first fixing plate (42), one end of which overlaps the first supporting block (41) and the other end of which overlaps the shaft support seat (21); A first fixing bolt (43) has one end connected to the first fixing plate (42) and the other end connected to the workbench (1).

10. The spline shaft processing tool according to claim 8, characterized in that: The positioning connection seat fixing assembly (5) comprises: A second supporting block (51) is provided on the workbench (1); A second fixing plate (52), one end of which overlaps the second supporting block (51) and the other end of which overlaps the positioning connection seat (31); A second fixing bolt (53) has one end connected to the second fixing plate (52) and the other end connected to the workbench (1).

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