Commutator tool
By placing an elastic damping structure on the shaft of the commutator tool, the problem of excessive force provided by the positioning teeth on the planter groove is solved, and the commutator is fixed while avoiding damage to the planter groove and slippage during turning the outer diameter, which improves the product pass rate.
Patent Information
- Application Number
- CN202422163802.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-04
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-09-04
AI Technical Summary
During the turning outer diameter process, the positioning teeth provide too much force on the commutator planter, which can easily lead to damage to the planter and affect the product pass rate.
A commutator tool is designed. By placing an elastic damping structure on the rotating shaft, the elastic force of the elastic damping structure is used to cooperate with the external force to fix the commutator on the rotating shaft to prevent the commutator from rotating during processing.
It effectively avoids damage to the flower tank, ensures the product's pass rate, and prevents slippage when turning the outer diameter.
Smart Images
Figure CN222986389U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tooling, and particularly relates to a commutator tooling. Background Art
[0002] When turning the outer diameter of a commutator with a flower groove at the bottom, a tooling is usually used to facilitate the machining of the commutator. In the prior art, the tooling used for turning the outer diameter usually has positioning teeth, so as to facilitate the cooperation with the flower groove of the commutator and drive the commutator to rotate, thus facilitating turning. However, when starting the rotation of the positioning teeth, the positioning teeth will provide a large acting force on the flower groove, easily damage the flower groove, cause product defects, and affect the product qualification rate. Content of the Utility Model
[0003] Therefore, the technical problem to be solved by the utility model is that the positioning teeth will provide a large acting force on the flower groove, easily damage the flower groove, cause product defects, and affect the product qualification rate, so as to provide a commutator tooling.
[0004] To solve the above problems, the utility model provides a commutator tooling, including:
[0005] A rotating shaft;
[0006] An elastic damping structure sleeved on one end of the rotating shaft;
[0007] A commutator sleeved on the rotating shaft and located on one side of the elastic damping structure, the side surface of the commutator abuts against the side surface of the elastic damping structure, the commutator moves towards the direction close to the elastic damping structure under the drive of an external force so that the commutator provides a thrust force on the elastic damping structure, and the elastic force of the elastic damping structure cooperates with the external force to be suitable for fixedly arranging the commutator on the rotating shaft.
[0008] Further, it further includes:
[0009] A limiting member fixedly arranged on the rotating shaft, the limiting member is located on the side of the elastic damping structure away from the commutator, and one end of the limiting member abuts against the flower groove end of the commutator to limit the commutator.
[0010] Further, the limiting member has a cavity, there is a gap between the inner wall of the limiting member and the outer surface of the rotating shaft, the elastic damping structure is arranged in the gap, one end of the elastic damping structure abuts against the bottom surface of the cavity of the limiting member, and the other end of the elastic damping structure extends out of the gap and abuts against the commutator.
[0011] Further, at least one threaded hole is provided in the limiting member, and fixing holes adapted to the threaded holes are provided on the rotating shaft. A bolt cooperates with the threaded hole and the fixing hole in sequence to fix the limiting member and the rotating shaft.
[0012] Further, the limiting member is of a barrel-shaped structure.
[0013] Further, the elastic damping structure is a polyurethane rubber sleeve.
[0014] Further, it further includes:
[0015] A push rod, the push rod abuts against the end face of the commutator away from the elastic damping structure, and the push rod is adapted to drive the commutator to move towards the elastic damping structure.
[0016] Further, the other end of the rotating shaft is fixedly arranged at the lathe spindle end.
[0017] The utility model has the following advantages:
[0018] The utility model discloses a commutator tooling. By sleeving an elastic damping structure on the rotating shaft, under the drive of an external force, one end of the commutator abuts against the elastic damping structure. The elastic damping structure provides an elastic force for the commutator. The commutator is simultaneously subjected to the elastic force and the thrust force to fixedly arrange the commutator on the rotating shaft. The end face of the elastic damping structure can provide frictional force for the commutator, thereby preventing the commutator from rotating during the processing, resulting in slipping when turning the outer diameter. The commutator tooling disclosed by the utility model effectively avoids the damage of the flower groove and ensures the product qualification rate. Description of the Drawings
[0019] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0020] Figure 1 It is a sectional view of the commutator tooling in the embodiment of the utility model;
[0021] Figure 2 It is a schematic diagram of the commutator tooling in the embodiment of the utility model Figure 1 ;
[0022] Figure 3 It is a schematic diagram of the commutator tooling in the embodiment of the utility model Figure 2 ;
[0023] Description of the reference numerals:
[0024] 1. Rotating shaft; 2. Elastic damping structure; 3. Commutator; 4. Limiting member; 5. Threaded hole; 6. Fixing hole. Specific embodiments
[0025] The technical solutions of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0026] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model 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 should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0027] In the description of the present utility model, 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, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0028] In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.
[0029] As Figures 1 to 3 shown, this embodiment discloses a commutator tooling, including: a rotating shaft 1, an elastic damping structure 2, and a commutator 3. The elastic damping structure 2 is sleeved on one end of the rotating shaft 1. The commutator 3 is sleeved on the rotating shaft 1 and is located on one side of the elastic damping structure 2. The side surface of the commutator 3 abuts against the side surface of the elastic damping structure 2. The commutator 3 moves in the direction close to the elastic damping structure 2 under the drive of an external force so that the commutator 3 provides a thrust to the elastic damping structure 2. The elastic force of the elastic damping structure 2 cooperates with the external force to be suitable for fixedly arranging the commutator 3 on the rotating shaft 1.
[0030] Specifically, the rotating shaft 1 is arranged horizontally, the elastic damping structure 2 is sleeved on the rotating shaft 1, a convex part is arranged on the rotating shaft 1, the left end of the elastic damping structure 2 abuts against the side surface of the convex part, the commutator 3 is sleeved on the rotating shaft 1 and is located on the right side of the elastic damping structure 2. A force is applied to the right end of the commutator 3 to make the commutator 3 move towards the elastic damping structure 2 under the drive of the external force, so that the left end of the commutator 3 abuts against and presses the elastic damping structure 2. The elastic force of the elastic damping structure 2 is applied to the left end of the commutator 3 and cooperates with the thrust at the right end of the commutator 3 to fix the commutator 3 on the rotating shaft 1. The right end face of the elastic damping structure 2 abuts against the left end face of the commutator 3 and provides friction force to the left end face of the commutator 3, thereby preventing the commutator 3 from rotating during processing, resulting in slipping when turning the outer diameter.
[0031] Further, the other end of the rotating shaft 1 is fixedly arranged at the lathe spindle end.
[0032] Further, it further includes a limiting member 4. The limiting member 4 is fixedly arranged on the rotating shaft 1. The limiting member 4 is located on the side of the elastic damping structure 2 away from the commutator 3. One end of the limiting member 4 abuts against the spline groove end of the commutator 3 to limit the commutator 3.
[0033] Specifically, as Figures 1 to 3 shown, the limiting member 4 is fixedly arranged on the rotating shaft 1. The limiting member 4 is located at the end of the elastic damping structure 2 away from the commutator 3. The right end of the limiting member 4 abuts against the spline groove end of the commutator 3. The limiting member 4 can limit the commutator 3. The right end of the limiting member 4 is a flat end face, avoiding the problem that the positioning teeth damage the spline groove in the prior art.
[0034] Further, the limiting member 4 has a cavity. There is a gap between the inner wall of the limiting member 4 and the outer surface of the rotating shaft 1. The elastic damping structure 2 is arranged in the gap. One end of the elastic damping structure 2 abuts against the bottom surface of the cavity of the limiting member 4, and the other end of the elastic damping structure 2 extends out of the gap and abuts against the commutator 3.
[0035] Further, the limiting member 4 is of a barrel-shaped structure.
[0036] Specifically, as Figures 1 to 3As shown, the limiting member 4 is a hollow barrel-shaped structure. The right end of the limiting member 4 has an opening, and the left end of the limiting member 4 has a central hole. The limiting member 4 is sleeved on the rotating shaft 1 through the central hole. There is a gap between the inner wall of the limiting member 4 and the outer surface of the rotating shaft 1. The left end of the elastic damping structure 2 abuts against the bottom surface of the cavity of the limiting member 4. The right end of the elastic damping structure 2 extends out of the gap and abuts against the commutator 3. The commutator 3 applies a thrust to the elastic damping structure 2 to push the right end of the elastic damping structure 2 into the cavity. At the same time, the right end surface of the limiting member 4 abuts against the left end surface of the commutator 3. The elastic damping structure 2 provides an elastic force for the commutator 3 and cooperates with the thrust at the right end of the commutator 3 to fix the commutator 3 on the rotating shaft 1.
[0037] Further, the limiting member 4 is provided with at least one threaded hole 5, and the rotating shaft 1 is provided with a fixing hole 6 that cooperates with the threaded hole 5. Bolts are sequentially engaged with the threaded hole 5 and the fixing hole 6 to fix the limiting member 4 and the rotating shaft 1.
[0038] Preferably, as Figure 1 and Figure 2 shown, in this embodiment, the limiting member 4 is provided with two threaded holes 5.
[0039] Preferably, in this embodiment, the elastic damping structure 2 is a polyurethane rubber sleeve.
[0040] Further, it further includes: a push rod (not shown). The push rod abuts against the end surface of the commutator 3 away from the elastic damping structure 2, and the push rod is adapted to drive the commutator 3 to move towards the elastic damping structure 2.
[0041] Specifically, the push rod abuts against the right end surface of the commutator 3 and applies a thrust to the commutator 3 to make the commutator 3 move towards the elastic damping structure 2.
[0042] In the commutator tooling of this embodiment, the left end of the rotating shaft 1 is fixedly arranged at the end of the lathe spindle. The elastic damping structure 2 and the limiting member 4 are sleeved on the right end of the rotating shaft 1. The elastic damping structure 2 is located in the gap between the limiting member 4 and the rotating shaft 1. The right end of the elastic damping structure 2 extends out of the limiting member 4. The commutator 3 is sleeved on the rotating shaft 1. The push rod is located at the right end of the commutator 3. The push rod abuts against the right end surface of the commutator 3 and applies a thrust to the commutator 3 to make the commutator 3 move towards the elastic damping structure 2. The left end surface of the commutator 3 pushes the elastic damping structure 2 into the gap of the limiting member 4 and abuts against the right end surface of the limiting member 4. The elastic force of the elastic damping structure 2 is applied to the left end of the commutator 3 and cooperates with the push rod at the right end of the commutator 3 to fix the commutator 3 on the rotating shaft 1. The right end surface of the elastic damping structure 2 abuts against the left end surface of the commutator 3 and provides a frictional force to the left end surface of the commutator 3, thereby preventing the commutator 3 from rotating during processing.
[0043] With the help of the commutator tooling disclosed according to this embodiment, the 3-flute of the commutator is prevented from being damaged during the machining process. By setting the elastic damping structure 2, while fixing the commutator 3 in cooperation with the ejector rod, the rotation of the commutator 3 during the machining process can also be avoided, which may cause slipping when turning the outer diameter, ensuring the product qualification rate.
[0044] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill 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 the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.
Claims
1. A commutator tooling, characterized in that: include: A rotating shaft (1); An elastic damping structure (2) is sleeved on one end of the rotating shaft (1); A commutator (3) is sleeved on the rotating shaft (1) and is located on one side of the elastic damping structure (2). The side surface of the commutator (3) abuts against the side surface of the elastic damping structure (2). The commutator (3) moves in a direction close to the elastic damping structure (2) under the drive of an external force so that the commutator (3) provides a thrust to the elastic damping structure (2). The elastic force of the elastic damping structure (2) cooperates with the external force to fix the commutator (3) on the rotating shaft (1).
2. The commutator tooling according to claim 1, characterized in that: Also includes: A limiting member (4) is fixedly arranged on the rotating shaft (1), the limiting member (4) being located on a side of the elastic damping structure (2) away from the commutator (3), and one end of the limiting member (4) abuts against a groove end of the commutator (3) to limit the commutator (3).
3. The commutator tooling according to claim 2, characterized in that: The limiting member (4) has a cavity, an inner wall of the limiting member (4) and an outer surface of the rotating shaft (1) have a gap, the elastic damping structure (2) is arranged in the gap, one end of the elastic damping structure (2) abuts against the bottom surface of the cavity of the limiting member (4), and the other end of the elastic damping structure (2) extends out of the gap and abuts against the commutator (3).
4. The commutator tooling according to claim 3, characterized in that: The limiting member (4) is provided with at least one threaded hole (5), the rotating shaft (1) is provided with a fixing hole (6) that matches the threaded hole (5), and a bolt matches the threaded hole (5) and the fixing hole (6) in sequence to fix the limiting member (4) and the rotating shaft (1).
5. The commutator tooling according to any one of claims 2 to 4, characterized in that: The limiting member (4) is a barrel-shaped structure.
6. The commutator tooling according to claim 5, characterized in that: The elastic damping structure (2) is a polyurethane rubber sleeve.
7. The commutator tooling according to claim 6, characterized in that: Also includes: A push rod, the push rod abuts against the end surface of the commutator (3) away from the elastic damping structure (2), and the push rod is suitable for driving the commutator (3) to move towards the elastic damping structure (2).
8. The commutator tooling according to claim 1, characterized in that: The other end of the rotating shaft (1) is fixedly arranged on the main shaft end of the lathe.