CN214544030U - Commutator rotor positioning tool - Google Patents
Commutator rotor positioning tool Download PDFInfo
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- CN214544030U CN214544030U CN202120628168.2U CN202120628168U CN214544030U CN 214544030 U CN214544030 U CN 214544030U CN 202120628168 U CN202120628168 U CN 202120628168U CN 214544030 U CN214544030 U CN 214544030U
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- lathe
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Abstract
The utility model relates to a commutator rotor location frock. The commutator rotor positioning tool comprises a stop lever and a limiting part. The stop lever is used for being installed on a front center of the lathe. The locating part includes position sleeve and spacing claw. The locating sleeve comprises a limiting pipe and a locating cylinder coaxially connected with the limiting pipe. The inner wall of the limiting pipe is provided with a limiting clamping groove. An opening at one end of the limiting clamping groove is positioned on the end face of the limiting pipe, which is away from one end of the limiting pipe. The inner diameter of the positioning cylinder is gradually increased along the direction departing from the limiting pipe. One end of the limiting claw is arranged at one end of the positioning cylinder, which is deviated from the limiting pipe. The limiting claw is used for abutting against the stop lever when the positioning barrel is sleeved on the front tip of the lathe and can rotate along the circumferential direction of the limiting pipe along with the stop lever. The commutator rotor positioning tool is used, so that the commutator rotor can be clamped and positioned on a lathe more stably, the probability that a rotor core slips relative to the front center of the lathe in the turning process is reduced, and the yield of commutator rotor machining is improved.
Description
Technical Field
The utility model relates to a commutator motor processing equipment technical field especially relates to a commutator rotor location frock.
Background
The commutator rotor is used as an important part of a commutator motor and comprises a rotating shaft, a rotor core sleeved on the rotating shaft and a rotor winding arranged on the rotor core. In the commutator rotor machining process, one of the important procedures is turning the surface of the rotor core. Before turning the rotor core, the rotating shaft is usually clamped between two lathe centers, or clamped between a clamping jaw and the lathe center, so as to position the commutator rotor on the lathe.
However, in the turning process, a turning tool on the lathe can apply a large turning force to the surface of the rotor core, and under the turning force, the commutator rotor is easy to rotate or the clamping jaws scratch the surface of the rotating shaft, so that the commutator rotor is low in yield in the processing process by the traditional positioning mode on the lathe.
SUMMERY OF THE UTILITY MODEL
Therefore, the commutator rotor positioning tool capable of improving the yield in the commutator rotor machining process is needed.
A commutator rotor positioning tool comprises a stop lever and a limiting piece;
the stop lever is used for being arranged on a front center of the lathe and extending out of the surface of the front center of the lathe;
the limiting piece comprises a positioning sleeve and a limiting claw; the positioning sleeve is of a hollow structure with two open ends;
the positioning sleeve comprises a limiting pipe and a positioning cylinder coaxially connected with the limiting pipe; the inner wall of the limiting pipe is provided with a limiting clamping groove; an opening at one end of the limiting clamping groove is positioned on the end face of the limiting pipe, which is away from one end of the limiting pipe; the inner diameter of the positioning cylinder is gradually increased along the direction departing from the limiting pipe;
one end of the limiting claw is arranged at one end, deviating from the limiting pipe, of the positioning cylinder; the limiting claw is used for abutting against the stop lever when the positioning barrel is sleeved on the front tip of the lathe and can rotate along the circumferential direction of the limiting pipe along with the stop lever.
In some embodiments, the outer wall of one end of the stop lever is formed with an external thread; and one end of the stop lever with an external thread is used for being screwed on the front center of the lathe.
In some embodiments, the limiting clamping groove is a rectangular groove; the limiting clamping groove extends along the axis direction of the limiting pipe.
In some embodiments, the extending direction of the limiting clamping groove is consistent with the central axis direction of the limiting pipe; in the axis direction of the limiting pipe, the length of the limiting clamping groove is the same as that of the limiting pipe.
In some embodiments, the number of the limiting clamping grooves is multiple; the plurality of limiting clamping grooves are arranged along the circumferential direction of the positioning pipe at intervals.
In some of these embodiments, the taper of the inner wall of the positioning cylinder is 60 degrees.
In some embodiments, the inner wall of the limiting claw is provided with a reinforcing rib; the extending direction of the reinforcing ribs is consistent with the extending direction of the limiting claws.
In some embodiments, the limiting tube, the positioning barrel and the limiting claw are of an integrally formed structure.
According to the commutator rotor positioning tool, before the rotor core needs to be turned, the stop lever is arranged on the front center of the lathe; sleeving a positioning pipe at one end of a rotating shaft in a commutator rotor, and clamping a clamping key on the rotating shaft into a limiting clamping groove; and then the positioning cylinder is sleeved on a front tip of the lathe, the limiting claw is abutted against the stop lever, and then the rear tip of the lathe is abutted against the other end of the rotating shaft so as to realize the positioning of the commutator rotor on the lathe. When the lathe carries out lathe work to rotor core, pivoted lathe front end top can drive the pin and rotate, the pin can drive the locating part through spacing claw and rotate, and spacing draw-in groove and the catch key on the rotor are mutually supported, so that the pivot rotates along with the locating part, from this, even very big turning power has been applyed to rotor core's surface to the lathe sword in the lathe work process, perhaps the chucking effect of commutator rotor between top and lathe back end is not very good before the lathe, the commutator rotor also is difficult for taking place to rotate, the defective rate of rotor core after lathe work has been reduced, the yields of commutator rotor man-hour has been improved.
Drawings
Fig. 1 is a schematic view of a commutator rotor positioning tool in an embodiment of the present invention in a state of being applied to a lathe;
FIG. 2 is a partially enlarged view of a state schematic diagram of the commutator rotor positioning tool shown in FIG. 1 when the tool is applied to a lathe;
fig. 3 is a schematic structural view of a limiting member in the commutator rotor positioning tool shown in fig. 2;
FIG. 4 is a front view of the limiter of FIG. 3;
fig. 5 is a cross-sectional view of the limiting member shown in fig. 4.
Description of reference numerals: 100. a commutator rotor positioning tool; 110. a stop lever; 120. a limiting member; 121. a positioning sleeve; 1211. a limiting pipe; 1212. a positioning cylinder; 1213. a limiting clamping groove; 122. a limiting claw; 123. reinforcing ribs; 200. turning a lathe; 210. a front center of the lathe; 220. a lathe rear center; 230. and (6) turning a tool.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
When an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present, unless otherwise specified. It will also be understood that when an element is referred to as being "between" two elements, it can be the only one between the two elements, or one or more intervening elements may also be present.
Where the terms "comprising," "having," and "including" are used herein, another element may be added unless an explicit limitation is used, such as "only," "consisting of … …," etc. Unless mentioned to the contrary, terms in the singular may include the plural and are not to be construed as being one in number.
Furthermore, the drawings are not 1: 1, and the relative dimensions of the various elements in the figures are drawn for illustration only and not necessarily to true scale.
As described in the background art, the commutator rotor includes a rotating shaft, a rotor core and a rotor winding, the rotor core is sleeved on the rotating shaft and is in transmission connection with the rotating shaft, and the rotor winding is disposed on the rotor core. In the commutator rotor machining process, in order to meet design requirements, the rotor core needs to be turned. Before turning, the commutator rotor needs to be clamped and positioned on a lathe. In the prior art, the rotating shaft is usually clamped between two lathe centers, or clamped in front of a jaw and the lathe center which are matched with each other, so as to realize the positioning of the commutator rotor on the lathe. Because in the turning process, a turning tool of the lathe can apply a large turning force to the rotor core, and the commutator rotor can easily rotate under the action of the turning force, thereby influencing the processing quality of the rotor core. In order to improve the processing quality of a rotor core and the yield of a product, the applicant provides a commutator rotor positioning tool.
Fig. 1 shows a schematic structural diagram of a commutator rotor positioning tool in an embodiment of the present invention. For the purpose of illustration, the drawings show only the structures associated with embodiments of the invention. The commutator rotor positioning tool is used for assisting in completing turning of a rotor core (not shown) in a commutator rotor (not shown).
The commutator rotor positioning tool 100 may be matched with a lathe 200 or a machining center or other equipment capable of performing turning to complete turning of the surface of the rotor core. In the present invention, the application of the commutator rotor positioning tool 100 to the lathe 200 is mainly described as an example.
Referring to fig. 1 and 2, a commutator rotor positioning tool 100 according to a preferred embodiment of the present invention includes a stop lever 110 and a limiting member 120.
The stop lever 110 is adapted to be mounted on the lathe nose center 210 and to project from the surface of the lathe nose center 210. The stop lever 110 may be a polished rod, a threaded rod, a patterned rod, etc., and one end of the stop lever 110 may be mounted on the lathe front center 210 by welding, clamping, screwing, etc.
Specifically, the outer wall of one end of the stopper rod 110 is formed with an external thread. The stop lever 110 has an externally threaded end for threading onto the lathe nose center 210. In the actual use process, a threaded hole is formed in the lathe front center 210, and one end of the stop lever 110 with the external thread penetrates through and is screwed in the threaded hole, so that the stop lever 110 and the lathe front center 210 are detachably connected.
Referring to fig. 3 and fig. 4, the position-limiting member 120 includes a positioning sleeve 121 and a position-limiting claw 122. The positioning sleeve 121 is a hollow structure with two open ends. The positioning sleeve 121 includes a position-limiting tube 1211 and a positioning cylinder 1212 coaxially connected to the position-limiting tube 1211. The inner wall of the limiting tube 1211 is provided with a limiting clamping groove 1213. An opening at one end of the limiting clamping groove 1213 is located on the end surface of the limiting tube 1211 facing away from the end of the limiting tube 1211. The limiting clamping groove 1213 can be a rectangular groove, a trapezoidal groove, an arc groove, etc.
Referring also to FIG. 5, the inner diameter of the positioning barrel 1212 increases in a direction away from the stop tube 1211. Thus, the inner wall of the positioning barrel 1212 is flared.
Specifically, the taper of the inner wall of the positioning cylinder 1212 is 60 degrees. The taper refers to a ratio of a diameter difference between bottom circles at two ends of an inner wall of the positioning cylinder 1212 to a length of the positioning cylinder 1212. In the existing turning processing equipment, the degree of the lathe front center 210 is usually 60 degrees, so that the taper of the inner wall of the positioning cylinder 1212 is set to be 60 degrees, so as to ensure that when the positioning cylinder 1212 is sleeved on the lathe front center 210, the fit degree between the inner wall of the positioning cylinder 1212 and the lathe front center 210 is higher, so as to ensure that the positioning stability of the commutator rotor is higher in the turning processing process, and further ensure that the turning processing quality of the rotor core is also higher.
One end of the limiting claw 122 is arranged at one end of the positioning cylinder 1212, which is far away from the limiting tube 1211. The limiting claw 122 is used for abutting against the stop lever 110 when the positioning cylinder 1212 is sleeved on the lathe front center 210, and can rotate along the circumferential direction of the limiting pipe 1211 along with the stop lever 110. The limiting claw 122 can be fixed on the positioning cylinder 1212 in a splicing manner such as welding, screwing, clamping and the like, and can also form an integrally formed structure with the positioning cylinder 1212 in an integrally formed manner such as casting and the like. The number of the limiting claws 122 may be one or more. When the plurality of limiting claws 122 are provided, the plurality of limiting claws 122 are arranged at intervals along the circumferential direction of the limiting tube 1211 at one end of the positioning cylinder 1212 facing away from the limiting tube 1211.
For ease of understanding, the process of clamping and positioning the commutator rotor on the lathe 200 by using the commutator rotor positioning tool 100 will be briefly described below. And the rotor of the commutator comprises a rotating shaft, a rotor core sleeved on the rotating shaft and a rotor winding arranged on the rotor core.
(1) Mounting one end of the stop lever 110 on a lathe front center 210 of a lathe 200;
(2) one end of the rotating shaft is inserted into the limiting tube 1211, and the clamping key on the rotating shaft is clamped into the limiting key groove, so that the connection between the commutator rotor and the limiting piece 120 can be realized;
(3) sleeving the positioning cylinder 1212 on the lathe front center 210, and ensuring that the limiting claw 122 can abut against the stop lever 110;
(4) and moving the lathe rear center 220 until the lathe rear center 220 abuts against one end of the rotating shaft far away from the limiting piece 120, so as to clamp the rotating shaft between the lathe front center 210 and the lathe rear center 220, and thus clamping and positioning of the commutator rotor on the lathe 200 can be realized.
When the lathe 200 performs turning on the rotor core, the rotating front center 210 of the lathe can drive the stop lever 110 to rotate, the stop lever 110 can drive the limiting part 120 to rotate through the limiting claw 122, the limiting clamping groove 1213 is matched with the rotating latch, so that the rotating shaft rotates along with the limiting part 120, therefore, the stop lever 110 is matched with the limiting claw 122, so as to limit the circumferential position of the limiting part 120 on the front center 210 of the lathe, and the limiting clamping groove 1213 is matched with the rotating latch, so as to limit the circumferential position of the rotating shaft on the limiting part 120. Therefore, even if a great turning force is applied to the surface of the rotor core by the turning tool 230 in the turning process, or the clamping effect of the commutator rotor between the lathe front center 210 and the lathe rear center 220 is not good, the commutator rotor is not easy to rotate relative to the lathe front center 210, the reject ratio of the rotor core in the turning process is reduced, and the use of the commutator rotor positioning tool 100 improves the yield of the commutator rotor in the machining process.
Referring again to fig. 3, in some embodiments, the spacing slots 1213 are rectangular shaped grooves. The limiting clamping groove 1213 extends along the central axis direction of the limiting tube 1211. Therefore, the limiting clamping grooves 1213 are rectangular grooves extending along the central axis of the limiting tube 1211 and having a long strip shape, and compared with grooves (such as trapezoidal grooves and arc-shaped grooves) having other shapes, the rectangular grooves can be processed more easily, so that the commutator rotor positioning tool 100 can be processed more easily. Moreover, in the commutator motor, in order to ensure the transmission effect between the rotating shaft and other components, a flat key and the like are usually arranged on the rotating shaft, and the limiting clamping groove 1213 is arranged as a rectangular groove, so that the clamping effect between the limiting clamping groove 1213 and the clamping key on the rotating shaft can be ensured.
Of course, in other embodiments, in order to match the shape of the locking key on the rotating shaft, the limiting locking slot 1213 may also be configured as a triangular groove, an arc-shaped groove, etc. as long as the locking key on the rotating shaft can be locked in the limiting groove.
Referring to fig. 5 again, in some embodiments, the extending direction of the limiting slot 1213 is the same as the central axis direction of the limiting tube 1211. Therefore, the limiting clamping groove 1213 is a long strip-shaped groove. In the central axis direction of the limiting tube 1211, the length of the limiting slot 1213 is the same as the length of the limiting tube 1211. Therefore, the limiting clamping groove 1213 is a groove penetrating through the limiting tube 1211 along the central axis direction of the limiting tube 1211, so that when the commutator rotor is clamped on the lathe 200, one end of the rotating shaft provided with the clamping key penetrates into the positioning cylinder 1212 and can be pressed against the front center 210 of the lathe, and the end parts of the two ends of the rotating shaft can be respectively pressed against the front center 210 of the lathe and the rear center 220 of the lathe, thereby further improving the clamping stability of the commutator rotor on the lathe 200.
In some embodiments, there are multiple spacing slots 1213. A plurality of spacing draw-in grooves 1213 are arranged at intervals along the circumference of the positioning tube. In addition, a plurality means a number greater than 1. When the number of the limiting clamping slots 1213 is multiple, the rotating shaft with multiple clamping keys can penetrate into the limiting tube 1211, and the limiting tube 1211 can limit the rotating shaft with multiple clamping keys in the circumferential direction. Here, the plurality of snap keys may be a plurality of individual flat keys or may be splines provided on the rotating shaft. Therefore, the shape and size of each positioning groove are matched with the shape and size of each clamping key on the rotating shaft, and the arrangement mode of the plurality of positioning clamping grooves is related to the arrangement mode of the plurality of clamping keys on the rotating shaft.
Referring to fig. 3 and 4 again, in some embodiments, the inner wall of the limiting claw 122 is provided with a reinforcing rib 123. The extending direction of the reinforcing rib 123 coincides with the extending direction of the restricting pawl 122. Specifically, one end of the reinforcing rib 123 extends to be connected to the positioning cylinder 1212. Therefore, the reinforcing ribs 123 can increase the strength of the limiting claw 122, so as to reduce the probability of fracture, deformation and the like of the limiting claw 122 after long-time use, prolong the service life of the limiting member 120, and further prolong the service life of the commutator rotor positioning tool 100.
In some embodiments, the limiting tube 1211, the positioning tube 1212 and the limiting claw 122 are integrally formed. Specifically, the reinforcing rib 123 and the limiting claw 122 are integrally formed. The integral forming structure is a one-step forming structure, so the limiting tube 1211, the positioning tube 1212, the limiting claw 122 and the reinforcing rib 123 are integrally formed, the connection among the limiting tube 1211, the positioning tube 1212, the limiting claw 122 and the reinforcing rib 123 is firmer, and the one-step forming process can simplify the processing process of the limiting member 120.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (8)
1. A commutator rotor positioning tool is characterized by comprising a stop lever and a limiting piece;
the stop lever is used for being arranged on a front center of the lathe and extending out of the surface of the front center of the lathe;
the limiting piece comprises a positioning sleeve and a limiting claw; the positioning sleeve is of a hollow structure with two open ends;
the positioning sleeve comprises a limiting pipe and a positioning cylinder coaxially connected with the limiting pipe; the inner wall of the limiting pipe is provided with a limiting clamping groove; an opening at one end of the limiting clamping groove is positioned on the end face of the limiting pipe, which is away from one end of the limiting pipe; the inner diameter of the positioning cylinder is gradually increased along the direction departing from the limiting pipe;
one end of the limiting claw is arranged at one end, deviating from the limiting pipe, of the positioning cylinder; the limiting claw is used for abutting against the stop lever when the positioning barrel is sleeved on the front tip of the lathe and can rotate along the circumferential direction of the limiting pipe along with the stop lever.
2. The commutator rotor positioning tool according to claim 1, wherein an external thread is formed on the outer wall of one end of the stop lever; and one end of the stop lever with an external thread is used for being screwed on the front center of the lathe.
3. The commutator rotor positioning tool according to claim 1, wherein the limiting clamping groove is a rectangular groove; the limiting clamping groove extends along the axis direction of the limiting pipe.
4. The commutator rotor positioning tool according to claim 1, wherein the extending direction of the limiting clamping groove is consistent with the central axis direction of the limiting pipe; in the axis direction of the limiting pipe, the length of the limiting clamping groove is the same as that of the limiting pipe.
5. The commutator rotor positioning tool according to claim 1, wherein a plurality of limiting clamping grooves are formed; the plurality of limiting clamping grooves are arranged along the circumferential direction of the positioning pipe at intervals.
6. The commutator rotor positioning tool according to claim 1, wherein the taper of the inner wall of the positioning cylinder is 60 degrees.
7. The commutator rotor positioning tool according to claim 1, wherein the inner wall of the limiting claw is provided with a reinforcing rib; the extending direction of the reinforcing ribs is consistent with the extending direction of the limiting claws.
8. The commutator rotor positioning tool according to claim 1, wherein the limiting pipe, the positioning cylinder and the limiting claw are of an integrally formed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120628168.2U CN214544030U (en) | 2021-03-26 | 2021-03-26 | Commutator rotor positioning tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120628168.2U CN214544030U (en) | 2021-03-26 | 2021-03-26 | Commutator rotor positioning tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214544030U true CN214544030U (en) | 2021-10-29 |
Family
ID=78266298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120628168.2U Active CN214544030U (en) | 2021-03-26 | 2021-03-26 | Commutator rotor positioning tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214544030U (en) |
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2021
- 2021-03-26 CN CN202120628168.2U patent/CN214544030U/en active Active
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