Commutator press-in tool

Abstract

The utility model provides a commutator press-in tool, and belongs to the field of motor tools. The commutator press-in tool comprises a tool seat, a guide rod, a commutator limiting piece and an iron core limiting piece. The tool base is provided with a first face, and the guide rod is connected with the first face. The commutator limiting pieces are detachably connected with the first surface, each commutator limiting piece comprises commutator limiting parts, the number of the commutator limiting pieces is at least two, and the sizes of the commutator limiting parts are different from each other. The iron core limiting pieces are detachably connected with the guide rod and comprise iron core limiting parts, the number of the iron core limiting pieces is at least two, and the sizes of the iron core limiting parts are different from each other. According to the invention, the problems of tedious tool storage and management, high cost and low production efficiency caused by the fact that various motor rotor products are different in size and multiple types of tools need to be prepared can be solved.

Description

Technical Field

[0001] The present invention belongs to the field of motor tooling, and in particular relates to a commutator press-in tooling. Background Art

[0002] The commutator and the iron core are important components of the motor rotor. During the production and assembly of the motor rotor, pressing the commutator into the iron core is an essential process.

[0003] In the related art, the assembly between the commutator and the iron core is realized by the motor rotor assembly tool. The motor rotor assembly tool includes an iron core fixing cylinder, an iron core circumferential stopper, and a commutator circumferential stopper. During assembly, the commutator is first placed on the commutator circumferential stopper, and then the iron core is placed in the iron core fixing cylinder. After the worker adjusts the angle, the iron core is aligned and fixed with the iron core circumferential stopper in the iron core fixing cylinder, and finally the press-in operation is performed.

[0004] However, because the sizes of various motor rotor products are inconsistent, the size of the required tooling must also change accordingly. Many types of tooling need to be prepared, resulting in cumbersome storage and management of tooling, high costs, and low production efficiency. Utility Model Content

[0005] The disclosed embodiment provides a commutator pressing work, which can solve the problem that due to the inconsistency of the sizes of various motor rotor products, too many types of tooling need to be prepared, resulting in cumbersome storage and management of tooling, high costs and low production efficiency. The technical solution is as follows:

[0006] The disclosed embodiment provides a commutator pressing tool, including a tool seat, a guide rod, a commutator limiter and an iron core limiter. The tool seat has a first surface, and the guide rod is connected to the first surface. The commutator limiter is detachably connected to the first surface, and the commutator limiter includes a commutator limiter portion, the number of the commutator limiters is at least two, and the sizes of the commutator limiters are different from each other. The iron core limiter is detachably connected to the guide rod, and the iron core limiter includes an iron core limiter portion, the number of the iron core limiters is at least two, and the sizes of the iron core limiters are different from each other.

[0007] In one implementation of the present disclosure, the first surface has a limiting groove. The inner peripheral wall of the limiting groove has a plurality of limiting teeth, and the limiting teeth are arranged at intervals along the inner peripheral wall of the limiting groove. The outer peripheral wall of the commutator limiting member has matching teeth, the commutator limiting member can be movably located in the limiting groove, and the matching teeth are meshed with any two adjacent limiting teeth.

[0008] In another implementation of the present disclosure, the tooling seat includes a first through hole and a first fastening shaft. One end of the first through hole is located on the outer surface of the tooling seat, and the other end of the first through hole is located on the inner circumferential wall of the limiting groove. The first fastening shaft is inserted into the first through hole, and the first fastening shaft abuts against the commutator limiting member.

[0009] In yet another implementation of the present disclosure, the first surface has a scale, and the scale extends circumferentially along the outer edge of the limiting groove.

[0010] In another embodiment of the present disclosure, the commutator stopper has a hollow hole. The commutator stopper includes a plurality of fixed teeth, each of which is arranged at intervals along the circumference of the hollow hole, and each of which is fixedly connected to a side of the commutator stopper facing away from the stopper groove.

[0011] In yet another implementation of the present disclosure, the tooth tip of the fixed tooth has a chamfer.

[0012] In yet another implementation of the present disclosure, the core stopper is movably mounted on the guide rod, and the moving direction of the core stopper is consistent with the length direction of the guide rod.

[0013] In another implementation of the present disclosure, the core stopper includes a second through hole and a second fastening shaft. One end of the second through hole is located on the outer surface of the core stopper, and the other end of the second through hole extends toward the inside of the core stopper. The second fastening shaft is inserted into the second through hole, and the second fastening shaft abuts against the guide rod located inside the core stopper.

[0014] In another implementation of the present disclosure, the outer wall of the core stopper has a hollow half-cylinder. The core stopper is a rod-shaped structural member, the core stopper is connected to the inner wall of the hollow half-cylinder, and the axis of the core stopper is parallel to the axis of the hollow half-cylinder.

[0015] In yet another implementation of the present disclosure, the core limiting member comprises at least two groups of the hollow half-cylinders and the core limiting portions, and the sizes of the hollow half-cylinders and the core limiting portions of each group are different from each other.

[0016] The beneficial effects brought by the technical solution provided by the embodiments of the present disclosure include at least:

[0017] The commutator pressing tool provided in the embodiment of the present disclosure includes a tool seat, a guide rod, a commutator limiter and an iron core limiter.

[0018] The tooling seat has a first surface, the guide rod is fixed on the first surface, the core stopper is detachably mounted on the guide rod, and the commutator stopper is detachably mounted on the first surface of the tooling seat. After installation, the commutator of the motor rotor is fixed on the commutator stopper to perform the press-fitting operation. Because the commutator stopper and the core stopper can be disassembled and replaced with other different sizes, the commutator of a product can be replaced on site after the press-fitting is completed, and then the above steps are repeated to complete the press-fitting of motor rotor commutators of other different sizes.

[0019] In other words, the disclosed embodiment can not only realize the press-fitting of various types of motor rotor commutators, but also reduce production costs and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, 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 disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 is a structural schematic diagram of a commutator press-fitting tool provided in an embodiment of the present disclosure;

[0022] Figure 2 is a partially enlarged structural schematic diagram of a commutator pressing tool provided in an embodiment of the present disclosure;

[0023] Figure 3 It is another structural schematic diagram of the commutator pressing tool provided in the embodiment of the present disclosure.

[0024] The symbols in the figure mean the following:

[0025] 10. Tooling seat;

[0026] 110, first surface; 111, limiting groove; 1111, limiting tooth; 112, scale; 120, first through hole; 130, first fastening shaft;

[0027] 20. Guide rod;

[0028] 30. Commutator limiter;

[0029] 310, commutator limiting part; 311, fixed tooth; 320, matching tooth; 330, hollow hole;

[0030] 40. Core limiter;

[0031] 410, core limiting portion; 420, second through hole; 430, second fastening shaft; 440, hollow half cylinder. DETAILED DESCRIPTION

[0032] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0033] The embodiment of the present disclosure provides a commutator pressing tool, Figure 1 A schematic structural diagram of a commutator press-fitting tool provided in an embodiment of the present disclosure.

[0034] like Figure 1 As shown, the commutator press-fitting tool comprises a tool seat 10, a guide rod 20, a commutator stopper 30 and a core stopper 40. The tool seat 10 has a first surface 110, and the guide rod 20 is connected to the first surface 110. The commutator stopper 30 is detachably connected to the first surface 110, and the commutator stopper 30 comprises a commutator stopper 310, and the number of the commutator stopper 30 is at least two, and the sizes of the commutator stopper 310 are different from each other. The core stopper 40 is detachably connected to the guide rod 20, and the core stopper 40 comprises a core stopper 410, and the number of the core stopper 40 is at least two, and the sizes of the core stopper 410 are different from each other.

[0035] Because the commutator stopper 30 can fix the commutator, the core stopper 40 can fix the rotor core, and both the commutator stopper 30 and the core stopper 40 can be disassembled and replaced with other different sizes, after completing the press-fitting of a commutator of a product, it can be replaced on site, and then the press-fitting of motor rotor commutators of other different sizes can be completed. In other words, this embodiment can not only realize the press-fitting of motor rotor commutators of various varieties, but also reduce production costs and improve production efficiency.

[0036] It is worth noting that the core stopper 40 and the commutator stopper 30 have at least a plurality of different sizes. Figure 1 The embodiment shows a core stopper 40 and a commutator stopper 30. The tooling seat 10 is a cylinder, the first surface 110 is a non-curved surface on the cylinder, and the guide rod 20 and the first surface 110 are both fixed and detachable. The core stopper 40 is detachably mounted on the guide rod 20, and the commutator stopper 30 is detachably mounted on the first surface 110 of the tooling seat 10. The commutator of the motor rotor is fixed on the commutator stopper 30 to perform an efficient press-fit operation.

[0037] In this embodiment, Figure 2 A schematic diagram of the partially enlarged structure of the commutator pressing tooling provided in an embodiment of the present disclosure.

[0038] like Figure 2As shown, the first surface 110 has a limiting groove 111. The inner peripheral wall of the limiting groove 111 has a plurality of limiting teeth 1111, and the limiting teeth 1111 are arranged at intervals along the inner peripheral wall of the limiting groove 111. The outer peripheral wall of the commutator limiting member 30 has matching teeth 320, and the commutator limiting member 30 can be movably located in the limiting groove 111, and the matching teeth 320 are meshed with any two adjacent limiting teeth 1111.

[0039] The tooth shape of the limiting teeth 1111 is triangular, and the tooth shape of the matching teeth 320 is trapezoidal. Any two adjacent limiting teeth 1111 and matching teeth 320 can be firmly meshed with each other, so that when the commutator limiting member 30 of different sizes is disassembled and replaced, its placement angle can be adjusted. When the commutator limiting member 30 is installed in the limiting groove 111, the limiting teeth 1111 and the matching teeth 320 are meshed and fixed with each other, so that the commutator limiting member 30 can not only fix the commutator, but also limit the circumferential rotation of the commutator, and can also adjust the press-fitting angle of the commutator, thereby improving the accuracy and efficiency of the press-fitting process.

[0040] In this embodiment, the tooling seat 10 includes a first through hole 120 and a first fastening shaft 130. One end of the first through hole 120 is located on the outer surface of the tooling seat 10, and the other end of the first through hole 120 is located on the inner circumferential wall of the limiting groove 111. The first fastening shaft 130 is inserted into the first through hole 120, and the first fastening shaft 130 is against the commutator limiting member 30.

[0041] The first fastening shaft 130 firmly presses against the commutator stopper 30 , so that the commutator stopper 30 will not move easily during the press-fitting operation, thereby improving the precision and efficiency of the press-fitting operation.

[0042] The first through hole 120 has an internal thread, the outer peripheral wall of the first fastening shaft 130 has an external thread, and the first through hole 120 and the first fastening shaft 130 are threadedly matched. By screwing the first fastening shaft 130, the first fastening shaft 130 can be moved toward the limiting groove 111 until the first fastening shaft 130 abuts against the first fastening shaft 130 located in the limiting groove 111, thereby achieving the fixation of the first fastening shaft 130. The purpose of fixing the commutator limiter 30 is achieved, and the precision and efficiency of the press-fitting operation are improved.

[0043] Of course, in other implementations, the commutator stopper 30 may also be firmly pressed against the tooling seat 10 by the first fastening shaft 130 , thereby achieving the purpose of fixing the commutator stopper 30 .

[0044] In this embodiment, the first surface 110 has a scale 112 , which extends circumferentially along the outer edge of the limiting groove 111 .

[0045] Because the scale ruler 112 is closely along the outer edge of the limiting groove 111, when the commutator limiting member 30 is placed in the limiting groove 111, the angle can be adjusted with reference to the scale ruler 112, so as to facilitate the replacement of commutators of different sizes for press-fitting operations.

[0046] The zero-degree position of the scale ruler 112 is the reference scale, and the reference scale is aligned with the position of the commutator stopper 310. One end of the commutator is aligned with the reference scale and fixed on the commutator stopper 310. If the press-fitting angle of the commutator needs to be adjusted, the commutator stopper 310 can be adjusted by a whole number of degrees in the clockwise direction or by a few tens of degrees in the counterclockwise direction with reference to the reference scale. When other commutators of different sizes are to be press-fitted, the angles of the commutator stopper 310 and the commutator can be adjusted with the help of the scale ruler 112 to achieve press-fitting of multiple varieties of commutators.

[0047] In this embodiment, the commutator stopper 30 has a hollow hole 330. The commutator stopper 310 includes a plurality of fixed teeth 311, each fixed tooth 311 is arranged along the circumference of the hollow hole 330 at intervals, and each fixed tooth 311 is fixedly connected to a side of the commutator stopper 30 that faces away from the limit groove 111.

[0048] During the press-fitting operation, one end of the commutator can be fitted and fixed on two fixed teeth 311 arranged circumferentially along the circular edge of the hollow hole 330 to prevent the commutator from rotating during press-fitting, thereby improving the precision and efficiency of the press-fitting process. In addition, the fixed teeth 311 can be used as a reference for aligning the scale 112 to adjust the angle of the commutator stopper 30.

[0049] It is worth mentioning that although Figure 1 In the embodiment shown, there are two fixing teeth 311, but in actual use, one commutator stopper 310 may have a plurality of fixing teeth 311, so that the circumferential fixation of the commutator becomes more stable.

[0050] In this embodiment, the tooth tips of the fixed teeth 311 are chamfered.

[0051] The chamfer can make the opening of the fixed tooth 311 larger. This chamfer setting makes it more efficient to put the commutator into the commutator stopper 30, and the commutator is fixed more firmly, thereby improving the precision and efficiency of the press-fitting process.

[0052] The chamfers on two adjacent fixed teeth 311 are arranged opposite to each other, so that the commutator can be placed on the commutator stopper 30 more conveniently and efficiently.

[0053] In this embodiment, the core stopper 40 is movably sleeved on the guide rod 20 , and the moving direction of the core stopper 40 is consistent with the length direction of the guide rod 20 .

[0054] Because the core limiter 40 can slide on the guide rod 20, when it is necessary to press-fit motor rotor commutators of other different sizes, the core limiters 40 of different sizes can be quickly disassembled and replaced, thereby realizing the press-fitting of various types of motor rotor commutators, reducing production costs and improving production efficiency.

[0055] The number of guide rods 20 can be one or more. When there are multiple guide rods 20, the axes of the guide rods 20 are parallel to each other, so that the core stopper 40 can slide more smoothly on the guide rod 20 along the length direction of the guide rod 20. When the commutator is pressed, the height of the core stopper can be adjusted at any time to facilitate fixing of cores of different sizes.

[0056] It is worth noting that, although the position of the core stopper 40 on the guide rod 20 can be adjusted to adapt to cores of different sizes, if the size of the core varies greatly, it should be adapted by replacing the core stopper 40 with a different size.

[0057] In this embodiment, the core stopper 40 includes a second through hole 420 and a second fastening shaft 430. One end of the second through hole 420 is located on the outer surface of the core stopper 40, and the other end of the second through hole 420 extends toward the inside of the core stopper 40. The second fastening shaft 430 is inserted into the second through hole 420, and the second fastening shaft 430 abuts against the guide rod 20.

[0058] The second fastening shaft 430 firmly presses against the guide rod 20, so that the core limiter 40 will not move easily when the commutator is pressed, thereby improving the precision and efficiency of the press-fitting operation.

[0059] The second through hole 420 has an internal thread, and the outer peripheral wall of the second fastening shaft 430 has an external thread, and the second through hole 420 and the second fastening shaft 430 are threadedly matched. By screwing the second fastening shaft 430, the second fastening shaft 430 can be moved toward the inside of the core stopper 40 until the second fastening shaft 430 abuts against the guide rod 20 inserted into the core stopper 40, thereby fixing the second fastening shaft 430. The accuracy and efficiency of the press-fitting operation are improved.

[0060] In other implementations, the guide rod 20 may also be firmly pressed against the inner wall of the core stopper 40 by the second fastening shaft 430 , thereby achieving the purpose of positioning the guide rod 20 and the core stopper 40 .

[0061] In this embodiment, the outer wall of the core stopper 40 has a hollow half cylinder 440. The core stopper 410 is a rod-shaped structure connected to the inner wall of the hollow half cylinder 440, and the axis of the core stopper 410 is parallel to the axis of the hollow half cylinder 440.

[0062] The core stopper 410 can be inserted into the rotor core, and the core can only slide along the length direction of the core stopper. In other words, while the rotor is pressed into the commutator, the core is also prevented from rotating circumferentially during the press-fitting process, further improving the precision and efficiency of the press-fitting process.

[0063] The distance between the two straight sides of the inner wall of the core limiting portion 410 and the hollow semi-cylinder 440 is equal, and the length D1 of the core limiting portion 410 is equal to the length D2 of the two straight sides of the inner wall of the hollow semi-cylinder 440. The core limiting portion 410 can be more easily inserted into the groove on the core of the electronic rotor, and the core can slide smoothly along the length direction of the core limiting portion 410, further improving the efficiency of press-fitting.

[0064] In this embodiment, Figure 3 Another structural schematic diagram of the commutator pressing tool provided in the embodiment of the present disclosure is shown in FIG. Figure 3 Perspective and Figure 1 Contrary to the perspective.

[0065] In this embodiment, the core stopper 40 has at least two groups of hollow half-cylinders 440 and core stopper portions 410 , and the sizes of each group of hollow half-cylinders 440 and core stopper portions 410 are different from each other.

[0066] In the above implementation, since the core stopper 40 has at least two groups of hollow half-cylinders 440 and core stopper 410, and the sizes of each group of hollow half-cylinders 440 and core stopper 410 are different from each other, if it is necessary to press-fit motor rotor commutators of different sizes, another group of hollow half-cylinders 440 and core stopper 410 on the core stopper 40 can be directly used. The core stopper 40 can be used for press-fitting of commutators of motor rotors of at least two different sizes, thereby reducing costs and improving the economic efficiency of production.

[0067] For example, if Figure 3 As shown, when the core limiter 40 has two groups of hollow half-cylinders 440 and the core limiter 410, the two groups of hollow half-cylinders 440 and the core limiter 410 are symmetrically arranged one hundred and eighty degrees along the central axis of the core limiter 40. After the core limiter 40 is removed, it can still be inserted into the guide rod 20 after being flipped one hundred and eighty degrees along the axis, so that one core limiter 40 can be used for the commutator pressing operation of two motor rotors of different sizes, thereby reducing costs and improving the economy of production.

[0068] The above description is only an optional embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A commutator press-fitting tool, characterized in that: It comprises a tooling seat (10), a guide rod (20), a commutator stopper (30) and an iron core stopper (40); The tooling seat (10) has a first surface (110), and the guide rod (20) is connected to the first surface (110); The commutator stopper (30) is detachably connected to the first surface (110), the commutator stopper (30) comprises a commutator stopper portion (310), the number of the commutator stopper (30) is at least two, and the sizes of the commutator stopper portions (310) are different from each other; The core limiting member (40) is detachably connected to the guide rod (20), the core limiting member (40) comprises a core limiting portion (410), the number of the core limiting members (40) is at least two, and the sizes of the core limiting portions (410) are different from each other.

2. The commutator press-fitting tool according to claim 1, characterized in that: The first surface (110) has a limiting groove (111); The inner circumferential wall of the limiting groove (111) has a plurality of limiting teeth (1111), and the limiting teeth (1111) are arranged at intervals along the circumferential direction of the inner circumferential wall of the limiting groove (111); The outer peripheral wall of the commutator limiting member (30) has a matching tooth (320), the commutator limiting member (30) is movably located in the limiting groove (111), and the matching tooth (320) is meshed with any two adjacent limiting teeth (1111).

3. The commutator pressing tool according to claim 2, characterized in that: The tooling seat (10) comprises a first through hole (120) and a first fastening shaft (130); One end of the first through hole (120) is located on the outer surface of the tooling seat (10), and the other end of the first through hole (120) is located on the inner peripheral wall of the limiting groove (111); The first fastening shaft (130) is inserted into the first through hole (120), and the first fastening shaft (130) abuts against the commutator stopper (30).

4. The commutator pressing tool according to claim 2, characterized in that: The first surface (110) has a scale (112); The scale ruler (112) extends circumferentially along the outer edge of the limiting groove (111).

5. The commutator pressing tool according to claim 2, characterized in that: The commutator stopper (30) has a hollow hole (330); The commutator limiting portion (310) comprises a plurality of fixed teeth (311), each of the fixed teeth (311) being arranged at intervals along the circumference of the circular edge of the hollow hole (330), and each of the fixed teeth (311) being fixedly connected to a surface of the commutator limiting member (30) that is opposite to the limiting groove (111).

6. The commutator pressing tool according to claim 5, characterized in that: The tooth tip of the fixed tooth (311) has a chamfer.

7. The commutator pressing tool according to claim 1, characterized in that: The core stopper (40) is movably sleeved on the guide rod (20), and the moving direction of the core stopper (40) is consistent with the length direction of the guide rod (20).

8. The commutator pressing tool according to claim 7, characterized in that: The core stopper (40) comprises a second through hole (420) and a second fastening shaft (430); One end of the second through hole (420) is located on the outer surface of the iron core stopper (40), and the other end of the second through hole (420) extends toward the interior of the iron core stopper (40); The second fastening shaft (430) is inserted into the second through hole (420), and the second fastening shaft (430) abuts against the guide rod (20) located inside the core stopper (40).

9. The commutator press-fitting tool according to claim 1, characterized in that: The outer wall of the core stopper (40) has a hollow half cylinder (440); The core limiting portion (410) is a rod-shaped structural member, the core limiting portion (410) is connected to the inner wall of the hollow semi-cylinder (440), and the axis of the core limiting portion (410) is parallel to the axis of the hollow semi-cylinder (440).

10. The commutator pressing tool according to claim 9, characterized in that: The core limiting member (40) comprises at least two groups of the hollow half-cylinders (440) and the core limiting portion (410), and the sizes of each group of the hollow half-cylinders (440) and the core limiting portion (410) are different from each other.

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