Commutator groove milling tool
The commutator slot milling tool addresses inefficiencies in single-piece processing by allowing simultaneous batch processing of multiple commutators using a mounting and limiting system with guide rails and a push mechanism, improving efficiency and durability.
Patent Information
- Application Number
- CN202420590294.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-25
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-03-25
AI Technical Summary
The existing production method for small-sized commutators is inefficient, as they are processed one by one, leading to low processing efficiency.
A commutator slot milling tool with a mounting part, limiting part, push ring, and driving structure that allows multiple commutators to be processed simultaneously by installing them on a turntable, using guide rails and slide grooves to rotate in sync with the milling tool, and a push mechanism to separate processed commutators.
Enhances production efficiency by enabling batch processing of multiple commutators, reduces assembly complexity, and extends the service life of the limiter components.
Smart Images
Figure CN222242793U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of commutator processing, and in particular to a commutator slot milling tool. Background Art
[0002] The commutator is a key component in the motor. Its main function is to periodically change the direction of the current during the operation of the motor to ensure that the motor can continue to rotate.
[0003] A commutator in the related art includes a body 5, and six commutator segments 51 are distributed on the circumferential surface of the body 5. A separation groove is provided between two adjacent commutator segments 51. A hook portion 52 is provided on one side of the commutator segment 51 away from the body.
[0004] In the existing production and processing of small-sized commutators, the copper shell is first installed on the slot body, and then the commutator is installed on the turntable of the slot milling equipment, and the copper shell is divided into multiple mutually non-conductive commutator segments 51 by a tool to achieve the processing of the commutator. The existing production method processes the commutators one by one, and its processing efficiency is low, so it needs to be improved. Utility Model Content
[0005] In order to improve the production efficiency of the commutator, the present application provides a commutator slot milling tool.
[0006] The present application provides a commutator slot milling tool, which adopts the following technical solution:
[0007] A commutator milling tool comprises a mounting part, wherein the mounting part comprises a mounting shaft mounted on a turntable, a mounting rod is provided at one end of the mounting shaft, a plurality of commutators can be sleeved on the outside of the mounting rod, a limiting part is provided on the outer shell of the mounting part, the limiting part comprises a guide rail parallel to the mounting rod, a gap is left between the guide rail and the mounting rod, a slide groove is provided on the end surface of the guide rail facing the mounting rod, the slide groove penetrates the guide rail along the length direction of the guide rail, and the slide groove can allow a hook to be inserted.
[0008] By adopting the above technical scheme, when the hook of the commutator segment is located in the slide groove, the commutator cannot rotate relative to the mounting rod; when processing the commutator, first install the mounting part on the turntable of the slot milling equipment, and then install multiple commutators to be processed on the mounting rod, and slide the hook of a commutator segment into the slide groove, so that the tool of the slot milling equipment can cut multiple commutators at one time, and when the turntable rotates, the guide rail rotates around the axis of the mounting rod, and the guide rail drives multiple commutators to rotate around the axis of the mounting rod together, so that the tool of the slot milling equipment can cut other positions of the commutator until the commutator is processed and formed; through the tooling, the slot milling equipment can produce multiple commutators in the same batch, thereby improving the production efficiency of the commutator.
[0009] Optionally, a guide chamfer is provided on the guide rail, and the guide chamfer slope is arranged at the junction of the inner wall of the slide groove around the circumference of the limiting ring and the side of the guide rail away from the limiting ring.
[0010] By adopting the above technical solution and setting the chamfer, it is convenient for the staff to insert the hook of the commutator segment into the slide groove, which plays a guiding role.
[0011] Optionally, the slide groove and the guide rail are provided in plurality, and the plurality of guide rails and the plurality of slide grooves are distributed in an array circumferentially along the axis of the mounting shaft.
[0012] By adopting the above technical solution, the commutator can be better driven to rotate through multiple guide rails; when one guide rail is damaged, the other guide rails can still drive the commutator, thereby increasing the service life of the limiter.
[0013] Optionally, the mounting member also includes a mounting ring sleeved on the outside of the mounting rod, and a groove is provided on the outer circumferential surface of the mounting ring; the limiting member also includes a limiting ring sleeved on the outside of the mounting ring, and a threaded hole is provided on the outer circumferential surface of the limiting ring, and a headless bolt inserted into the groove is threadedly connected to the threaded hole.
[0014] By adopting the above technical solution, when the limiting ring is sleeved outside the mounting ring, the headless bolt is driven to rotate, so that the headless bolt contacts the bottom wall of the groove, so that the limiting ring and the mounting ring are connected and fixed, preventing the limiting ring and the mounting ring from rotating relative to each other, so that the commutator can be cut smoothly.
[0015] Optionally, a plurality of the grooves are provided, and the plurality of the grooves are distributed in an array circumferentially along the axis of the mounting ring.
[0016] By adopting the above technical solution and setting a plurality of grooves, the headless bolt can be connected and fixed to the mounting ring regardless of which groove bottom wall it contacts, making it easier to assemble the limiting ring and the mounting ring.
[0017] Optionally, a mounting groove is provided on the outer circumferential surface of the mounting ring, and the mounting groove penetrates the mounting ring along the axis of the mounting ring, and the guide rail can be inserted into the mounting groove.
[0018] By adopting the above technical solution, when the guide rail is inserted into the installation groove, the threaded hole is aligned with any groove to play a positioning role; in addition, when the installation part rotates, the inner wall of the installation groove can drive the limit part to rotate synchronously.
[0019] Optionally, a positioning ring is connected to the outer shell of the mounting rod, and the positioning ring is located on a side of the mounting ring away from the mounting shaft.
[0020] By adopting the above technical solution, when the commutator is installed on the mounting rod, the commutator conflicts with the limit ring, restricting the commutator from continuing to move toward the turntable, preventing the commutator and the limit ring from being too close, and preventing the tool of the milling equipment from cutting the tooling when the milling equipment is running.
[0021] Optionally, a push ring is disposed on the outer sleeve of the positioning ring, and a push rod is disposed on the inner circumferential surface of the push ring for driving the commutator to move along the axis of the mounting rod, and the push rod extends in a direction away from the mounting shaft.
[0022] By adopting the above technical solution, the push ring is driven to move in a direction away from the turntable, and the push ring can drive the commutator on the mounting rod to move, so that the commutator is separated from the mounting rod; the push rod can contact the inner wall of the commutator formed with bakelite, thereby reducing the force on the hook of the commutator segment.
[0023] Optionally, a limiting groove for inserting a guide rail is provided on the inner circumferential surface of the push ring.
[0024] By adopting the above technical solution, the push ring and the limiter will not rotate relative to each other, so that the push ring can only move along the axial direction of the mounting rod, and the push rod can accurately contact the hook of the commutator segment.
[0025] Optionally, it also includes a driving structure for driving the push ring to move along the axis direction of the mounting rod, the driving structure includes a cylinder arranged on the groove milling equipment, the piston rod of the cylinder is connected to the mounting bar, a push piece is arranged on the side of the mounting bar away from the cylinder, and the push piece is provided with a groove for inserting the push ring on the end face facing the push ring.
[0026] By adopting the above technical solution, the piston rod of the cylinder extends to move the mounting bar and the pusher, and the pusher drives the pusher ring to move; conversely, the pusher ring is inserted into the slot, and when the cylinder is not working, the pusher ring is not easy to move along the axial direction of the mounting rod.
[0027] In summary, the present application includes at least one of the following beneficial technical effects:
[0028] 1. When the hook of the commutator segment is located in the slide slot, the commutator cannot rotate relative to the mounting rod; when processing the commutator, first install the mounting piece on the turntable of the slot milling equipment, then install multiple commutators to be processed on the mounting rod, and slide the hook of a commutator segment into the slide slot, so that the tool of the slot milling equipment can cut multiple commutators at one time, and when the turntable rotates, the guide rail rotates around the axis of the mounting rod, and the guide rail drives multiple commutators to rotate around the axis of the mounting rod together, so that the tool of the slot milling equipment can cut other positions of the commutator until the commutator is processed; through the tooling, the slot milling equipment can produce multiple commutators in the same batch, which improves the production efficiency of the commutator;
[0029] 2. Set up a push piece to facilitate the separation of the processed commutator from the mounting rod. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] 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.
[0031] Figure 1 It is a schematic diagram of the structure of the commutator;
[0032] Figure 2 It is a schematic diagram of the structure of an embodiment of the present application;
[0033] Figure 3 An exploded view showing the structure of the mounting parts, pusher parts and discharge ring;
[0034] Figure 4 yes Figure 2 Enlarged schematic diagram of part A.
[0035] 1. Mounting member; 11. Mounting shaft; 12. Mounting rod; 121. Mounting chamfer; 13. Mounting ring; 131. Mounting groove; 132. Groove; 14. Positioning ring; 2. Limiting member; 21. Limiting ring; 211. Threaded hole; 22. Guide rail; 221. Slide groove; 222. Guide chamfer; 23. Headless screw; 3. Pushing ring; 31. Pushing rod; 32. Limiting groove; 4. Driving structure; 41. Cylinder; 42. Mounting bar; 43. Pushing member; 431. Vertical rod; 432. Horizontal rod; 433. Pushing block; 434. Slot; 44. Bolt; 5. Main body; 51. Commutator; 52. Hook. DETAILED DESCRIPTION
[0036] The following is combined with Figure 2-4 This application is described in further detail.
[0037] This embodiment discloses a commutator slot milling tool. Figure 2 A commutator slot milling tool comprises a mounting part 1, a limiting part 2, a push ring 3 and a driving structure 4.
[0038] Reference Figure 2 The mounting member 1 comprises a mounting shaft 11, a mounting rod 12, a mounting ring 13 and a positioning ring 14. The mounting shaft 11 is used to be mounted on a turntable of a slot milling device.
[0039] Reference Figure 3The mounting rod 12 is fixedly connected to the side of the mounting shaft 11 away from the turntable, and the mounting rod 12 is coaxially arranged with the mounting shaft 11. The diameter of the mounting rod 12 is smaller than the diameter of the mounting shaft 11. The end surface edge of the mounting rod 12 away from the mounting shaft 11 is provided with a mounting chamfer 121.
[0040] Reference Figure 3 The mounting ring 13 is sleeved on the outside of the mounting rod 12, and one end of the mounting ring 13 is fixedly connected to the mounting shaft 11. The outer diameter of the mounting ring 13 is larger than the diameter of the mounting shaft 11. The outer circumferential surface of the mounting ring 13 is provided with three mounting grooves 131, which are arranged in an array in the circumferential direction of the axis of the mounting ring 13. The mounting groove 131 penetrates the mounting ring 13 along the axis direction of the mounting rod 12.
[0041] Reference Figure 3 The outer circumferential surface of the mounting ring 13 is provided with three grooves 132, and the three grooves 132 are arranged in an array in the circumferential direction of the axis of the mounting ring 13. The three grooves 132 are arranged at intervals from the three mounting grooves 131.
[0042] Reference Figure 3 The positioning ring 14 is sleeved on the outside of the mounting rod 12, and the positioning ring 14 is located on the side of the mounting ring 13 away from the mounting shaft 11. One end of the positioning ring 14 is fixedly connected to the mounting ring 13.
[0043] Reference Figure 3 The limiting member 2 includes a limiting ring 21, a guide rail 22 and a headless screw 23. The limiting ring 21 is sleeved outside the mounting ring 13.
[0044] Reference Figure 3 and Figure 4 , three guide rails 22 are provided, and the three guide rails 22 are distributed in an array around the axis of the limiting ring 21. In other embodiments, the guide rails 22 can also be provided in two, four or other quantities. One end of the guide rail 22 is integrally formed with the inner wall of the limiting ring 21, and the guide rail 22 extends along the axial direction of the limiting ring 21. The guide rail 22 can slide into the mounting groove 131. The guide rail 22 is parallel to the mounting rod 12, and a gap is left between the guide rail 22 and the mounting rod 12. Compared with the scheme in which the guide rail 22 and the limiting ring 21 are separately formed and then assembled, the scheme in which the guide rail 22 and the limiting ring 21 are integrally formed can reduce the occurrence of the stagnation of the hook portion 52 of the commutator being unable to be inserted into the slot 434.
[0045] Reference Figure 3 The end surface of the guide rail 22 facing the mounting rod 12 is provided with a slide groove 221, and the slide groove 221 penetrates the guide rail 22 along the length direction of the guide rail 22. The guide rail 22 is provided with a guide chamfer 222, and the inclined surface of the guide chamfer 222 is arranged at the junction of the inner wall of the slide groove 221 around the limiting ring 21 and the side of the guide rail 22 away from the limiting ring 21.
[0046] Reference Figure 3 and Figure 4 , a plurality of commutators can be installed on the mounting rod 12. When the commutator is sleeved outside the mounting rod 12, the hook portion 52 of the commutator can slide into the slide groove 221.
[0047] Reference Figure 3 and Figure 4 The outer circumferential surface of the limiting ring 21 is provided with a threaded hole 211, and the threaded hole 211 is located between two adjacent guide rails 22. The headless bolt 44 is threadedly connected in the threaded hole 211. The headless bolt 44 is inserted into the groove 132 and abuts against the bottom wall of the groove 132.
[0048] Reference Figure 3 and Figure 4 The push ring 3 is used to drive the commutator to move along the axis direction of the mounting rod 12. The push ring 3 is sleeved outside the positioning ring 14. Three push rods 31 are fixedly connected to the inner circumference of the push ring 3, and the three push rods 31 are distributed in an array around the axis of the push ring 3. The push rods 31 extend in a direction away from the limit ring 21. The three push rods 31 are spaced apart from the three guide rails 22. When the commutator is sleeved outside the mounting rod 12, the hook portion 52 of the commutator is located on the moving path of the push rod 31 along the axis direction of the mounting rod 12.
[0049] Reference Figure 3 and Figure 4 The inner circumference of the push ring 3 is provided with three limiting grooves 32, which are arranged in an array around the axis of the push ring 3. The limiting grooves 32 penetrate the push ring 3 along the axis of the push ring 3, and the guide rail 22 can be inserted into the limiting grooves 32.
[0050] Reference Figure 2 and Figure 4 The driving structure 4 is installed on the slot milling device, and the driving structure 4 includes a cylinder 41, a mounting bar 42, a pusher 43 and a bolt 44. The cylinder 41 is installed on the slot milling device, and the cylinder 41 includes two piston rods. The moving direction of the piston rod of the cylinder 41 is consistent with the axial direction of the mounting rod 12.
[0051] Reference Figure 2 and Figure 4 There are two pushers 43, both of which are located on the side of the mounting bar 42 away from the cylinder 41. The two pushers 43 are horizontally symmetrical to each other, and the pusher ring 3 is located between the two pushers 43. The pusher 43 includes a vertical rod 431, a horizontal rod 432 and a push block 433.
[0052] Reference Figure 2 and Figure 4The bolt 44 passes through the vertical rod 431 and the mounting bar 42, and is threadedly connected to the piston rod of the cylinder 41. The horizontal rod 432 is fixedly connected to the side of the vertical rod 431 away from the mounting bar 42. The push block 433 is fixedly connected to the side of the horizontal rod 432 facing the push ring 3. The end surface of the push block 433 facing the push ring 3 is provided with a slot 434, and the slot 434 can be partially inserted into the push ring 3.
[0053] The implementation principle of a commutator slot milling tool in the embodiment of the present application is as follows: first install the tool on the slot milling device, then sleeve the commutator on the outside of the mounting rod 12, and allow the hook 52 of the commutator to be inserted into the slide groove 221. The copper shell of the commutator is cut by a tool, and then the turntable of the slot milling device drives the commutator to rotate until the copper shell is divided into a plurality of commutator segments 51 that are not conductive to each other. Finally, the piston rod of the cylinder 41 drives the pusher 43, the pusher ring 3 and the push rod 31 to move, and the commutator is separated from the mounting rod 12 by the push rod 31.
[0054] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second", "third" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and similar words do not indicate a quantitative limit, but indicate that there is at least one. "Include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0055] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present application should be included in the protection scope of the present application.
Claims
1. A commutator slot milling tool, comprising a mounting member (1), characterized in that: The mounting member (1) comprises a mounting shaft (11) mounted on a turntable, a mounting rod (12) being provided at one end of the mounting shaft (11), a plurality of commutators being sleeved on the outside of the mounting rod (12), a limiting member (2) being provided on the outer shell of the mounting member (1), the limiting member (2) comprising a guide rail (22) parallel to the mounting rod (12), a gap being left between the guide rail (22) and the mounting rod (12), a slide groove (221) being provided on the end surface of the guide rail (22) facing the mounting rod (12), the slide groove (221) penetrating the guide rail (22) along the length direction of the guide rail (22), and the slide groove (221) being capable of allowing the hook (52) to be inserted.
2. A commutator slot milling tool according to claim 1, characterized in that: The guide rail (22) is provided with a guide chamfer (222), and the inclined surface of the guide chamfer (222) is arranged at the junction of the inner wall of the slide groove (221) around the limiting ring (21) and the side of the guide rail (22) away from the limiting ring (21).
3. The commutator slot milling tool according to claim 1, characterized in that: The slide groove (221) and the guide rail (22) are both provided in plurality, and the plurality of guide rails (22) and the plurality of slide grooves (221) are distributed in an array circumferentially along the axis of the mounting shaft (11).
4. A commutator slot milling tool according to claim 3, characterized in that: The mounting member (1) further comprises a mounting ring (13) sleeved on the outside of the mounting rod (12), and a groove (132) is provided on the outer circumferential surface of the mounting ring (13); the limiting member (2) further comprises a limiting ring (21) sleeved on the outside of the mounting ring (13), and a threaded hole (211) is provided on the outer circumferential surface of the limiting ring (21), and a headless bolt (44) inserted into the groove (132) is threadedly connected to the inner thread of the threaded hole (211).
5. The commutator slot milling tool according to claim 4, characterized in that: A plurality of the grooves (132) are provided, and the plurality of the grooves (132) are distributed in an array along the axis of the mounting ring (13).
6. A commutator slot milling tool according to claim 4, characterized in that: An installation groove (131) is provided on the outer circumferential surface of the installation ring (13), and the installation groove (131) penetrates the installation ring (13) along the axis of the installation ring (13), and the guide rail (22) can be inserted into the installation groove (131).
7. The commutator slot milling tool according to claim 1, characterized in that: The outer shell of the installation rod (12) is connected with a positioning ring (14), and the positioning ring (14) is located on a side of the installation ring (13) away from the installation shaft (11).
8. The commutator slot milling tool according to claim 7, characterized in that: The outer shell of the positioning ring (14) is provided with a push ring (3), and the inner circumferential surface of the push ring (3) is provided with a push rod (31) for driving the commutator to move along the axial direction of the mounting rod (12), and the push rod (31) extends in a direction away from the mounting shaft (11).
9. A commutator slot milling tool according to claim 8, characterized in that: A limiting groove (32) for the guide rail (22) to be inserted is provided on the inner circumferential surface of the push ring (3).
10. The commutator slot milling tool according to claim 8, characterized in that: It also includes a driving structure (4) for driving the push ring (3) to move along the axial direction of the mounting rod (12), the driving structure (4) includes a cylinder (41) arranged on the groove milling device, the piston rod of the cylinder (41) is connected to the mounting strip (42), a push piece (43) is arranged on the side of the mounting strip (42) away from the cylinder (41), and the push piece (43) is provided with a groove (434) for inserting the push ring (3) on the end surface facing the push ring (3).