Spinning machining device for motor shaft

Abstract

The utility model relates to the technical field of motor rotating shaft machining, in particular to a motor shaft spinning machining device which comprises a clamping machine tool, a first clamping assembly, a second clamping assembly, a second clamping assembly, a third clamping assembly and a fourth clamping assembly. The first fixed core rod assembly and the first tail jacking assembly can be oppositely arranged on the clamping machine tool in a spaced mode. The second clamping assembly comprises a second fixed core rod assembly and a second tail jacking assembly, the second fixed core rod assembly and the second tail jacking assembly can be oppositely arranged on the clamping machine tool in a spaced mode, and the second end of the part blank is inserted into the second fixed core rod assembly; the first end of the part blank is connected to the second tail jacking assembly in a sleeving and abutting mode. And the part blank is arranged in the spinning assembly in a penetrating manner. According to the utility model, the processing difficulty can be reduced, the light weight of the motor shaft is ensured, and the material waste is avoided while the efficiency of the whole vehicle is ensured.

Description

Technical Field

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

[0002] The motor shaft is the link between the motor and the equipment for electromechanical energy conversion, supporting the rotating parts and transmitting torque. Therefore, the motor shaft must have reliable strength and rigidity to ensure the realization of the preset design functions. However, due to the structure of the motor, many motor shafts have strange shapes. For example Figure 1 The figure below is a typical schematic diagram of a motor shaft part. This type of electrode shaft with a large middle and small ends and a hollow structure is very difficult to process in practice. If a solid shaft is used, the weight of the entire electrode shaft part will be very large, which will reduce the efficiency of the entire vehicle and cause material waste.

[0003] Therefore, a motor shaft spinning processing device is needed to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a motor shaft spinning processing device, which can reduce the difficulty of processing, ensure the motor shaft is light, ensure the efficiency of the whole vehicle and avoid material waste.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] The motor shaft spinning processing device comprises:

[0007] Clamping machine tools;

[0008] A first clamping assembly includes a first fixed core rod assembly and a first tail top assembly, wherein the first fixed core rod assembly and the first tail top assembly can be arranged on the clamping machine relatively spaced apart, the first end of the part blank is sleeved on the first fixed core rod assembly, and the second end of the part blank abuts against the first tail top assembly;

[0009] The second clamping assembly includes a second fixed mandrel assembly and a second tail top assembly, wherein the second fixed mandrel assembly and the second tail top assembly can be arranged on the clamping machine relatively spaced apart, the second end of the part blank is inserted on the second fixed mandrel assembly, and the first end of the part blank is sleeved and abutted on the second tail top assembly;

[0010] A spinning assembly, wherein the part blank is inserted into the spinning assembly, and the spinning assembly can rotate relative to the part blank and extrude the part blank, so that the part blank forms a finished motor shaft.

[0011] Furthermore, a clamping base and a tail top base are relatively spaced apart on the clamping machine tool, the first fixed mandrel assembly and the second fixed mandrel assembly can both be arranged on the clamping base, and the first tail top assembly and the second tail top assembly can both be arranged on the tail top base.

[0012] Further, the first fixed core rod assembly includes a first core rod, one end of which can be set on the clamping base, and the other end of the first core rod can be inserted and abutted against the first end of the part blank, and the first tail top assembly includes a first tail top piece, one end of which can be set on the tail top seat, and the other end of the first tail top piece can abut against the second end of the part blank.

[0013] Furthermore, a first positioning groove is provided at one end of the clamping base toward the tail top seat, and one end of the first core rod can be inserted in the first positioning groove; a second positioning groove is provided at one end of the tail top seat toward the clamping base, and one end of the first tail top piece can be inserted in the second positioning groove.

[0014] Furthermore, a first limiter is provided on the base, and the first limiter can cooperate with the first core rod to prevent the first core rod from rotating relative to the first positioning groove. A second limiter is provided on the tail top seat, and the second limiter can cooperate with the first tail top piece to prevent the first tail top piece from rotating relative to the second positioning groove.

[0015] Further, the second fixed core rod assembly includes a second core rod, one end of which can be set on the clamping base, and the other end of the second core rod can be sleeved and abutted against the second end of the part blank, and the second tail top assembly includes a second tail top piece, one end of the second tail top piece can be set on the tail top seat, and the other end of the second tail top piece can be inserted and abutted against the first end of the part blank.

[0016] Furthermore, the clamping machine tool is provided with a material stripping assembly, and the material stripping assembly is used to eject the part blank from the first fixed core rod assembly.

[0017] Furthermore, the spinning assembly includes a fixing member and a plurality of first spinning heads, wherein the plurality of first spinning heads are spirally rotatably arranged on the fixing member, and along the direction from the tail top seat to the clamping base, the distance between the first spinning heads and the axis of the part blank gradually decreases.

[0018] Furthermore, the spinning assembly includes a fixing member and a plurality of second spinning heads, wherein the plurality of second spinning heads are spirally rotatably arranged on the fixing member, the second spinning heads are at the same distance from the axis of the part blank, and the tool heads of the second spinning heads are arc-shaped.

[0019] Beneficial effects of the utility model:

[0020] The utility model provides a motor shaft spinning processing device, which uses a first clamping assembly and a clamping machine to fix the part blank, and then uses the spinning assembly to spin the part sleeved on the first fixed core rod assembly from the first tail top assembly toward the first fixed core rod assembly, so that the length of the part blank located on the first fixed core rod assembly is lengthened to a set length; then the processed part blank is fixed by using a second clamping assembly and a clamping machine, and the part sleeved on the second tail top assembly is spun by using the spinning assembly, so that the diameter of the part blank located on the second tail top assembly is reduced to form a finished motor shaft. By adopting the above-mentioned spinning process, the difficulty of motor shaft processing is reduced, the weight of the motor shaft is ensured to be light, and the efficiency of the whole vehicle is ensured while avoiding material waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of a motor shaft of the utility model;

[0022] Figure 2 It is a schematic diagram of a first clamping assembly used in a motor shaft spinning processing device of the utility model;

[0023] Figure 3 It is a schematic diagram of a motor shaft spinning processing device of the utility model after processing using a first clamping assembly;

[0024] Figure 4 It is a schematic diagram of the arrangement of multiple first spinning heads in a motor shaft spinning processing device of the utility model;

[0025] Figure 5 It is a schematic diagram of a second clamping assembly used in a motor shaft spinning processing device of the utility model;

[0026] Figure 6 It is a schematic diagram of a motor shaft spinning processing device of the utility model after processing using a second clamping assembly;

[0027] Figure 7 It is a schematic diagram of the arrangement of multiple second spinning heads in a motor shaft spinning processing device of the utility model.

[0028] In the figure:

[0029] 1. Clamping base; 11. First limit piece; 2. Tail top seat; 21. Second limit piece; 3. Part blank; 4. First tail top assembly; 41. First tail top piece; 5. First fixed mandrel assembly; 51. First mandrel; 6. Spinning assembly; 61. First spinning head; 62. Second spinning head; 7. Material return tray; 8. Second fixed mandrel assembly; 81. Second mandrel; 9. Second tail top assembly; 91. Second tail top piece. DETAILED DESCRIPTION

[0030] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and implementation methods. It is understood that the specific embodiments described herein are only used to explain the utility model, rather than to limit the utility model. It should also be noted that, for the convenience of description, only the parts related to the utility model are shown in the accompanying drawings, rather than all.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] When processing a motor shaft with a hollow cavity at one end, in order to reduce the difficulty of processing, ensure the weight of the motor shaft is light, ensure the efficiency of the whole vehicle and avoid material waste, such as Figure 1-Figure 7 As shown, the utility model provides a motor shaft spinning processing device. The motor shaft spinning processing device comprises a clamping machine, a first clamping assembly, a second clamping assembly and a spinning assembly 6.

[0034] The first clamping assembly includes a first fixed core rod assembly 5 and a first tail top assembly 4. The first fixed core rod assembly 5 and the first tail top assembly 4 can be arranged on the clamping machine relatively at intervals. The first end of the part blank 3 is sleeved on the first fixed core rod assembly 5, and the second end of the part blank 3 abuts against the first tail top assembly 4. The second clamping assembly includes a second fixed core rod assembly 8 and a second tail top assembly 9. The second fixed core rod assembly 8 and the second tail top assembly 9 can be arranged on the clamping machine relatively at intervals. The second end of the part blank 3 is inserted on the second fixed core rod assembly 8, and the first end of the part blank 3 is sleeved and abuts against the second tail top assembly 9; the part blank 3 is inserted into the spinning assembly 6, and the spinning assembly 6 can rotate relative to the part blank 3 and extrude the part blank 3, so that the part blank 3 forms a finished motor shaft.

[0035] The part blank 3 is fixed by the first clamping assembly and the clamping machine, and then the part sleeved on the first fixed core rod assembly 5 is spun by the spinning assembly 6 from the first tail top assembly 4 toward the first fixed core rod assembly 5, so that the length of the part blank 3 located on the first fixed core rod assembly 5 is lengthened to the set length; then the processed part blank 3 is fixed by the second clamping assembly and the clamping machine, and the part sleeved on the second tail top assembly 9 is spun by the spinning assembly 6, so that the diameter of the part blank 3 located on the second tail top assembly 9 is reduced to form the finished shape of the motor shaft. By adopting the above-mentioned spinning process, the difficulty of motor shaft processing is reduced, the weight of the motor shaft is ensured to be light, and the efficiency of the whole vehicle is ensured while avoiding material waste.

[0036] Furthermore, a clamping base 1 and a tail top seat 2 are relatively spaced apart on the clamping machine, the first fixed core rod assembly 5 and the second fixed core rod assembly 8 can both be arranged on the clamping base 1, and the first tail top assembly 4 and the second tail top assembly 9 can both be arranged on the tail top seat 2. By arranging the clamping base 1 to cooperate with the first fixed core rod assembly 5 and the second fixed core rod assembly 8, and by arranging the tail top seat 2 to cooperate with the first tail top assembly 4 and the second tail top assembly 9, it is convenient to install and fix the first fixed core rod assembly 5 and the second fixed core rod assembly and the first tail top assembly 4 and the second tail top assembly 9 on the clamping machine.

[0037] Further, the first fixed core rod assembly 5 includes a first core rod 51, one end of which can be set on the clamping base 1, and the other end of the first core rod 51 can be inserted and abutted against the first end of the part blank 3. The first tail top assembly 4 includes a first tail top piece 41, one end of which can be set on the tail top seat 2, and the other end of the first tail top piece 41 can abut against the second end of the part blank 3. Specifically, since it is necessary to extend the hollow cavity structure of the first end of the part blank 3, by sleeve-mounting the part blank 3 on the first core rod 51, the part blank 3 becomes longer and thinner along the length direction of the first core rod 51 during the extension process. The first core rod 51 and the first tail top piece 41 cooperate to fix the part blank 3, thereby ensuring smooth processing.

[0038] Furthermore, a first positioning groove is provided at one end of the clamping base 1 facing the tail top seat 2, and one end of the first core rod 51 can be inserted into the first positioning groove. A second positioning groove is provided at one end of the tail top seat 2 facing the clamping base 1, and one end of the first tail top piece 41 can be inserted into the second positioning groove. By providing the first positioning groove, during the installation of the first core rod 51, it is convenient to quickly install and position; by providing the second positioning groove, it is convenient to install and position the first tail top piece 41.

[0039] Further, a first stopper 11 is provided on the base, and the first stopper 11 can cooperate with the first core rod 51 to prevent the first core rod 51 from rotating relative to the first positioning groove, and a second stopper 21 is provided on the tail top seat 2, and the second stopper 21 can cooperate with the first tail top member 41 to prevent the first tail top member 41 from rotating relative to the second positioning groove. Specifically, the first stopper 11 can be a positioning pin, and the second stopper 21 can be a top screw. After the first tail top member 41 is inserted into the second positioning groove of the tail top seat 2, the second stopper 21 abuts against the first tail top member 41 to limit the position of the first tail top member 41.

[0040] Further, the second fixed core rod assembly 8 includes a second core rod 81, one end of which can be set on the clamping base 1, and the other end of the second core rod 81 can be sleeved and abutted against the second end of the part blank 3. The second tail top assembly 9 includes a second tail top piece 91, one end of which can be set on the tail top seat 2, and the other end of the second tail top piece 91 can be inserted and abutted against the first end of the part blank 3. The second core rod 81 and the second tail top piece 91 are used to fix the part blank 3. The second tail top piece 91 is inserted into the hole extending from the part blank 3, and then the shrinking operation is performed through the spinning assembly 6, which can ensure that the shrinking operation is carried out smoothly. In the process of spinning, the first end of the part blank 3 is fitted with the second tail top piece 91 to meet the processing requirements.

[0041] Furthermore, a material stripping assembly is provided on the clamping machine, and the material stripping assembly is used to eject the part blank 3 from the first fixed core rod assembly 5. Specifically, in the present embodiment, the material stripping assembly includes a material stripping plate 7. After the first end of the part blank 3 is spun and extended by the spinning assembly 6, the first end of the part blank 3 is fastened to the first core rod 51, and it is difficult to remove the part blank 3 from the first core rod 51. By providing the material stripping plate 7, the material stripping plate 7 is sleeved on the first core rod 51, and the material stripping plate 7 can abut against the first end of the part blank 3. The material stripping plate 7 is pushed by the material stripping cylinder to move and abut against the part blank 3, and then continues to move to eject the part blank 3 from the first core rod 51.

[0042] Further, the spinning assembly 6 includes a fixing member and a plurality of first spinning heads 61, and the plurality of first spinning heads 61 are spirally rotated and arranged on the fixing member, and the distance between the first spinning head 61 and the axis of the part blank 3 gradually decreases along the direction from the tail top seat 2 to the clamping base 1. During the spinning process, the first spinning head 61 located at the front end performs extrusion with a certain feed, and then extrudes with a small feed amount in sequence, until the last first spinning head 61 processes the diameter of the first end of the part blank 3 in place. In the present embodiment, three first spinning heads 61 are provided, and the three first spinning heads 61 are arranged at 120° intervals. In other embodiments, the number of the first spinning heads 61 can be set according to actual needs, and no excessive restrictions are made here. By adopting the first spinning head 61 of the above structure, the first end of the part blank 3 can be effectively spun and unfolded, and it is ensured that the processing is carried out slowly, so as to avoid the tearing of the part blank 3 caused by a single large spinning feed amount.

[0043] Furthermore, the spinning assembly 6 includes a fixing member and a plurality of second spinning heads 62, the plurality of second spinning heads 62 are spirally rotated and arranged on the fixing member, the second spinning heads 62 are at the same distance from the axis of the part blank 3, and the blade of the second spinning head 62 is in an arc shape. The first end of the part blank 3 is extruded by setting the second spinning head 62, so that the first end of the part blank 3 is fitted with the second tail top piece 91, thereby processing the part blank 3 in place. Since the first end of the part blank 3 is not retracted much in this process, it is extruded in sequence by a plurality of second spinning heads 62 to prevent rebound after extrusion, thereby ensuring that the part blank 3 is stably formed after processing.

[0044] This embodiment also provides a processing method, using the above motor shaft spinning processing device to process the motor shaft part blank 3, including the following steps:

[0045] S1, fix the first fixed mandrel assembly 5 and the first tail top assembly 4 on a clamping machine;

[0046] S2, clamping the part blank 3 between the first fixed mandrel assembly 5 and the first tail top assembly 4, and sleeve-mounting the spinning assembly 6 on the part blank 3;

[0047] S3, start the spinning assembly 6, and spin the portion sleeved on the first fixed mandrel assembly 5 from the first tail top assembly 4 toward the first fixed mandrel assembly 5, so that the length of the portion of the part blank 3 located on the first fixed mandrel assembly 5 becomes longer to a set length;

[0048] S4, stop spinning, use the unloading plate 7 to remove the first fixed mandrel assembly 5 and the first tail top assembly 4 from the clamping machine, and remove the part blank 3 from the first fixed mandrel assembly 5;

[0049] S5, the second fixed mandrel assembly 8 and the second tail top assembly 9 are fixedly arranged on the clamping machine, the part blank 3 is turned 180 degrees and clamped between the second fixed mandrel assembly 8 and the second tail top assembly 9, and the spinning assembly 6 is sleeved on the part blank 3;

[0050] S6, start the spinning assembly 6, and spin the part sleeved on the second tail top assembly 9 from the second tail top assembly 9 toward the second fixed core rod assembly 8, so that the diameter of the part blank 3 located on the second tail top assembly 9 is reduced to form a finished motor shaft shape, and finally the processed motor shaft can be removed.

[0051] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A motor shaft spinning device, characterized in that: include: Clamping machine tools; A first clamping assembly comprises a first fixed core rod assembly (5) and a first tail top assembly (4), wherein the first fixed core rod assembly (5) and the first tail top assembly (4) can be arranged on the clamping machine tool at a relative interval, and the first end of the part blank (3) is sleeved on the first fixed core rod assembly (5), and the second end of the part blank (3) is in contact with the first tail top assembly (4); The second clamping assembly comprises a second fixed core rod assembly (8) and a second tail top assembly (9), wherein the second fixed core rod assembly (8) and the second tail top assembly (9) can be arranged on the clamping machine tool at a relative interval, the second end of the part blank (3) is inserted into the second fixed core rod assembly (8), and the first end of the part blank (3) is sleeved and abutted against the second tail top assembly (9); A spinning assembly (6), wherein the part blank (3) is inserted into the spinning assembly (6), and the spinning assembly (6) can rotate relative to the part blank (3) and extrude the part blank (3), so that the part blank (3) forms a finished motor shaft.

2. The motor shaft spinning processing device according to claim 1, characterized in that: A clamping base (1) and a tail top base (2) are arranged on the clamping machine tool at a relative interval; the first fixed core rod assembly (5) and the second fixed core rod assembly (8) can both be arranged on the clamping base (1); and the first tail top assembly (4) and the second tail top assembly (9) can both be arranged on the tail top base (2).

3. The motor shaft spinning processing device according to claim 2, characterized in that: The first fixed core rod assembly (5) comprises a first core rod (51), one end of which can be arranged on the clamping base (1), and the other end of which can be inserted and abutted against the first end of the part blank (3); the first tail top assembly (4) comprises a first tail top piece (41), one end of which can be arranged on the tail top seat (2), and the other end of which can abut against the second end of the part blank (3).

4. The motor shaft spinning processing device according to claim 3, characterized in that: The clamping base (1) is provided with a first positioning groove at one end facing the tail top seat (2), and one end of the first core rod (51) can be inserted into the first positioning groove; the tail top seat (2) is provided with a second positioning groove at one end facing the clamping base (1), and one end of the first tail top piece (41) can be inserted into the second positioning groove.

5. The motor shaft spinning processing device according to claim 4, characterized in that: The base is provided with a first limiting member (11), and the first limiting member (11) can cooperate with the first core rod (51) to prevent the first core rod (51) from rotating relative to the first positioning groove. The tail top seat (2) is provided with a second limiting member (21), and the second limiting member (21) can cooperate with the first tail top member (41) to prevent the first tail top member (41) from rotating relative to the second positioning groove.

6. The motor shaft spinning processing device according to claim 2, characterized in that: The second fixed core rod assembly (8) comprises a second core rod (81), one end of which can be arranged on the clamping base (1), and the other end of which can be sleeved and abutted against the second end of the part blank (3); the second tail top assembly (9) comprises a second tail top piece (91), one end of which can be arranged on the tail top seat (2), and the other end of which can be inserted and abutted against the first end of the part blank (3).

7. The motor shaft spinning processing device according to any one of claims 1 to 6, characterized in that: The clamping machine tool is provided with a material stripping assembly, which is used to eject the part blank (3) from the first fixed core rod assembly (5).

8. The motor shaft spinning processing device according to claim 2, characterized in that: The spinning assembly (6) comprises a fixing member and a plurality of first spinning heads (61), wherein the plurality of first spinning heads (61) are arranged on the fixing member in a spirally rotating manner, and along the direction from the tail top seat (2) to the clamping base (1), the distance between the first spinning heads (61) and the axis of the part blank (3) gradually decreases.

9. The motor shaft spinning processing device according to claim 2, characterized in that: The spinning assembly (6) comprises a fixing member and a plurality of second spinning heads (62), wherein the plurality of second spinning heads (62) are spirally arranged on the fixing member, the second spinning heads (62) are at the same distance from the axis of the part blank (3), and the tool head of the second spinning head (62) is in an arc shape.

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