Rotor assembling tool for direct current motor manufacturing

Abstract

The utility model discloses a rotor assembling tool for direct current motor manufacturing. The rotor assembling tool comprises a bottom die assembly and an upper die assembly. The bottom die assembly comprises a bottom plate, a balance block accommodating seat and an iron core positioning seat; the center of the bottom plate is provided with a penetrating opening penetrating through the top face and the bottom face of the bottom plate, and the top face of the bottom plate is provided with the balance block containing base. The top face of the balance block containing base is concavely provided with a balance block containing groove vertically opposite to the penetrating opening, and a shaft penetrating hole penetrating from the center of the balance block containing groove to the penetrating opening is formed in the top face of the balance block containing base. The iron core positioning seat is mounted on the top surface of the balance block accommodating seat, and an iron core accommodating groove opposite to the balance block accommodating groove in a front-back manner is formed in the front surface of the iron core positioning seat in a sunken manner; the upper die assembly comprises a top plate and a fan blade containing seat, the fan blade containing seat is installed on the bottom face of the top plate, a fan blade containing groove vertically opposite to the balance block containing groove is formed in the bottom face of the fan blade containing seat in a sunken mode, and a through hole is formed in the center of the fan blade containing groove. According to the utility model, the assembling efficiency of the rotor can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of DC motors, in particular to a rotor assembly tool used for manufacturing DC motors. Background Art

[0002] DC motors, devices that convert electrical energy into driving torque, are widely used in various fields. The rotor assembly is a crucial component of a DC motor, and the rotor's assembly efficiency directly impacts its manufacturing efficiency. In existing technology, some rotors are assembled by sequentially connecting the fan blades, iron core, and balance weights with a shaft. However, during the assembly process, the shaft, fan blades, iron core, and balance weights are all press-fitted together separately, resulting in low assembly efficiency. Utility Model Content

[0003] The purpose of the utility model is to provide a tool for assembling a rotor used in manufacturing a DC motor.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A rotor assembly tool for DC motor manufacturing, comprising a bottom die assembly and an upper die assembly arranged directly above the bottom die assembly;

[0006] The bottom mold assembly includes a bottom plate, a balancing weight receiving seat and an iron core positioning seat; the bottom plate is provided with a through-hole at its center that passes through its top and bottom surfaces, and the balancing weight receiving seat is installed on its top surface; the balancing weight receiving seat is recessed on its top surface to form a balancing weight receiving groove that is opposite to the through-hole above and below, and is provided with an axial through-hole that passes from the center of the balancing weight receiving groove to the through-hole; the iron core positioning seat is installed on the top surface of the balancing weight receiving seat, located behind the balancing weight receiving groove, and the iron core positioning seat is recessed on its front surface to form an iron core receiving groove that is opposite to the front and rear of the balancing weight receiving groove;

[0007] The upper mold assembly includes a top plate and a fan blade accommodating seat, which is installed on the bottom surface of the top plate. The fan blade accommodating seat is recessed on its bottom surface to form a fan blade accommodating groove that is opposite to the balance block accommodating groove up and down, and a through hole is opened in the center of the fan blade accommodating groove.

[0008] As a further technical solution of the present invention: the fan blade accommodating seat is provided with a positioning opening on the front and rear ends thereof, which is connected to the outside from the fan blade accommodating groove. A positioning block is provided in the positioning opening, which can elastically advance and retreat relative to the fan blade accommodating groove. The fan blade installed in the fan blade accommodating groove is pressed and positioned by the two positioning blocks elastically advancing and retreating relative to the fan blade accommodating groove.

[0009] As a further technical solution of the present invention: the fan blade accommodating seat is provided with fixing blocks at its front and rear ends, and the upper part of each fixing block is connected to the fan blade accommodating seat by a fixing bolt; the lower part of each fixing block is opposite to a positioning hole front and back, and the lower part of the fixing block is provided with a groove on the side facing the positioning hole and a third connecting hole is provided from the groove to the side away from the positioning hole; each positioning block is provided with a guide hole corresponding to the third connecting hole, for the lower part of the fixing block to be screwed with a limiting pin through the third connecting hole, the end of the limiting pin is inserted into the guide hole of the positioning block to guide the positioning block, and the middle section of the limiting pin is provided with a spring member, so that the spring member provides a driving force for the positioning block to elastically advance and retreat relative to the fan blade accommodating slot.

[0010] As a further technical solution of the present invention: the bottom plate is provided with two guide pillars opposite to each other on both sides thereof, and the top plate is provided with a guide sleeve corresponding to each guide pillar, for the guide pillar to pass through the corresponding guide sleeve.

[0011] As a further technical solution of the present invention: the balancing weight accommodating seat is provided with a plurality of first connecting holes on its edge for connecting with the base plate.

[0012] As a further technical solution of the present invention: the core positioning seat is provided with a plurality of second connection holes which pass through the top surface and the bottom surface thereof and are used for connecting with the balance weight accommodating seat.

[0013] As a further technical solution of the present invention: the fan blade accommodating seat is provided with mounting holes which pass through from both sides of the fan blade accommodating groove to its top surface for connection with the top plate.

[0014] Compared with the prior art, the beneficial effect of the present invention is that the present invention proposes a rotor assembly tool for DC motor manufacturing, which can simultaneously press and assemble the shaft, fan blades, iron core and balance block through the cooperation between the bottom mold assembly and the upper mold assembly, thereby effectively improving the assembly efficiency of the rotor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the rotor assembly tool used in DC motor manufacturing.

[0016] Figure 2 An exploded view of the rotor assembly tooling used in DC motor manufacturing.

[0017] Figure 3 A cross-sectional view of a rotor assembly tool used in DC motor manufacturing.

[0018] Figure 4 The diagram shows the installation and removal of the positioning block relative to the positioning port.

[0019] Figure 5 This is a schematic diagram showing the principle of the positioning block elastically advancing and retreating relative to the fan blade accommodating slot. DETAILED DESCRIPTION

[0020] The following is a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the scope of protection of the present invention.

[0021] See also Figure 1 、 Figure 2 and Figure 3 A rotor assembly tool for DC motor manufacturing, used to press and assemble the rotor shaft, fan blades, iron core and balance weight at the same time, comprising a bottom mold assembly 10 and an upper mold assembly 20 arranged directly above the bottom mold assembly 10;

[0022] The bottom mold assembly 10 includes a bottom plate 11, a balancing weight receiving seat 12 and an iron core positioning seat 13; the bottom plate 11 is provided with a through-hole 111 passing through the top and bottom surfaces thereof at its center and the balancing weight receiving seat 12 is installed on its top surface; the balancing weight receiving seat 12 is located directly above the through-hole 111, and the balancing weight receiving seat 12 is provided with a plurality of first connecting holes 121 for connecting with the bottom plate 11 on its edge, and the balancing weight receiving seat 12 is recessed on its top surface to form a flat surface opposite to the through-hole 111. The balance weight receiving groove 122 is provided with an axial hole 123 extending from the center of the balance weight receiving groove 122 to the center of the through-opening 111. The iron core positioning seat 13 is mounted on the top surface of the balance weight receiving groove 12, located behind the balance weight receiving groove 122. The iron core positioning seat 13 is provided with a plurality of second connecting holes 131 extending through the top and bottom surfaces thereof for connecting with the balance weight receiving groove 12, and a core receiving groove 132 is recessed on the front surface thereof, facing the front and rear of the balance weight receiving groove 122.

[0023] The upper mold assembly 20 includes a top plate 21 and a blade accommodating seat 22. The blade accommodating seat 22 is installed on the bottom surface of the top plate 21. The blade accommodating seat 22 is recessed on its bottom surface to form a blade accommodating groove 221 that is opposite to the balance block accommodating groove 122 up and down, and a through hole 222 that passes through the center of the blade accommodating groove 221 to its top surface.

[0024] It can be understood that the method of using the rotor assembly tooling for DC motor manufacturing on a press in the present invention is as follows: the balancing block, iron core and shaft are placed in sequence on the bottom mold assembly 10, specifically, the balancing block is installed in the balancing block accommodating groove 122, the iron core is installed in the iron core accommodating groove 132, and the shaft is placed in the center hole of the iron core; the fan blade is installed on the upper mold assembly 20, specifically, the fan blade is installed in the fan blade accommodating groove 221, and the shaft and the center hole of the fan blade, the center hole of the iron core and the center hole of the balancing block are in a straight line; then, the press is started to press and assemble the shaft with the fan blade, iron core and balancing block at the same time, thereby effectively improving the assembly efficiency of the rotor.

[0025] Further, see Figure 4 、 Figure 5 In this embodiment, the fan blade receiving seat 22 is provided with a positioning opening 223 on the front and rear ends thereof, which is connected to the fan blade receiving groove 221. A positioning block 23 is provided in the positioning opening 223, which can elastically advance and retreat relative to the fan blade receiving groove 221. The two positioning blocks 23 elastically advance and retreat relative to the fan blade receiving groove 221, and the fan blade installed in the fan blade receiving groove 221 is pressed and positioned.

[0026] Furthermore, in this embodiment, the fan blade receiving seat 22 is equipped with fixing blocks 24 at its front and rear ends, and the upper part of each fixing block 24 abuts against the fan blade receiving seat 22 and is connected by fixing bolts 25; the lower part of each fixing block 24 is opposite to a positioning hole 223 front and back, and the lower part of the fixing block 24 is provided with a groove 241 on the side facing the positioning hole 223 and a third connecting hole 242 is passed through from the groove 241 to the side away from the positioning hole 223; each positioning block 23 is provided with a guide hole 231 corresponding to the third connecting hole 242, for the lower part of the fixing block 24 to be screwed to the limit pin 26 through the third connecting hole 242, the end of the limit pin 26 is inserted into the guide hole 231 of the positioning block 23, guiding the positioning block 23, and the middle section of the limit pin 26 is sleeved with a spring member 261, so that the spring member 261 provides a driving force for the positioning block 23 to elastically advance and retreat relative to the fan blade receiving groove 221.

[0027] Furthermore, in this embodiment, the bottom plate 11 is provided with two guide columns 101 opposite to each other on both sides, and the top plate 21 is provided with a guide sleeve 102 corresponding to each guide column 101, so that the guide column 101 passes through the corresponding guide sleeve 102, thereby improving the stability when the shaft is pressed and assembled with the fan blade, iron core and balance block at the same time.

[0028] Furthermore, in this embodiment, the fan blade receiving seat 22 is provided with mounting holes 201 extending from both sides of the fan blade receiving groove 221 to the top surface thereof for connecting with the top plate 21 .

[0029] In summary, the rotor assembly tooling for DC motor manufacturing of the present invention can simultaneously press and assemble the shaft with the fan blades, iron core and balance block through the cooperation between the bottom mold assembly 10 and the upper mold assembly 20, thereby effectively improving the assembly efficiency of the rotor.

[0030] As long as it does not violate the creative idea of ​​the present invention, any combination of various different embodiments of the present invention should be regarded as the content disclosed by the present invention; within the technical concept of the present invention, any simple modification of the technical solution and any combination of different embodiments that do not violate the creative idea of ​​the present invention should be within the protection scope of the present invention.

Claims

1. A rotor assembly tool for DC motor manufacturing, characterized by: It comprises a bottom mold assembly (10) and an upper mold assembly (20) arranged directly above the bottom mold assembly (10); The bottom mold assembly (10) includes a bottom plate (11), a balancing block receiving seat (12) and an iron core positioning seat (13); the bottom plate (11) is provided with a through-hole (111) passing through the top and bottom surfaces thereof at its center, and the balancing block receiving seat (12) is installed on its top surface; the balancing block receiving seat (12) is recessed on its top surface to form a balancing block receiving groove (122) opposite to the through-hole (111) and is provided with an axial hole (123) passing through the center of the balancing block receiving groove (122) to the through-hole (111); the iron core positioning seat (13) is installed on the top surface of the balancing block receiving seat (12) and is located behind the balancing block receiving groove (122); the iron core positioning seat (13) is recessed on its front surface to form an iron core receiving groove (132) opposite to the front of the balancing block receiving groove (122); The upper mold assembly (20) comprises a top plate (21) and a fan blade accommodating seat (22), wherein the fan blade accommodating seat (22) is mounted on the bottom surface of the top plate (21), and the fan blade accommodating seat (22) is recessed on its bottom surface to form a fan blade accommodating groove (221) that is opposite to the balancing block accommodating groove (122) in the upper and lower directions, and a through hole (222) is opened in the center of the fan blade accommodating groove (221).

2. The rotor assembly tool for DC motor manufacturing according to claim 1, characterized in that: The fan blade receiving seat (22) is provided with a positioning opening (223) extending outward from the fan blade receiving groove (221) on its front and rear ends, and a positioning block (23) capable of elastically advancing and retreating relative to the fan blade receiving groove (221) is provided in the positioning opening (223). The fan blade inserted into the fan blade receiving groove (221) is pressed and positioned by the elastic advancement and retreat of the two positioning blocks (23) relative to the fan blade receiving groove (221).

3. The rotor assembly tool for DC motor manufacturing according to claim 2, characterized in that: The fan blade receiving seat (22) is provided with fixing blocks (24) at its front and rear ends. The upper portion of each fixing block (24) is connected to the fan blade receiving seat (22) by a fixing bolt (25); the lower portion of each fixing block (24) is opposite to a positioning opening (223) in front and back, and a groove (241) is provided on the side of the lower portion of the fixing block (24) facing the positioning opening (223) and a third connecting hole (242) is provided from the groove (241) to the side away from the positioning opening (223); each positioning block (23 ) A guide hole (231) is provided through the third connecting hole (242) corresponding to the fixing block (24), for the lower portion of the fixing block (24) to be screwed to the limiting pin (26) through the third connecting hole (242), the distal end of the limiting pin (26) is inserted into the guide hole (231) of the positioning block (23), guiding the positioning block (23), and a spring member (261) is sleeved on the middle section of the limiting pin (26), so as to provide a driving force for the positioning block (23) to elastically advance and retreat relative to the fan blade receiving groove (221).

4. The rotor assembly tool for DC motor manufacturing according to claim 1, characterized in that: The bottom plate (11) is provided with two guide pillars (101) on both sides thereof, and the top plate (21) is provided with a guide sleeve (102) corresponding to each guide pillar (101), so that the guide pillar (101) passes through the corresponding guide sleeve (102).

5. The rotor assembly tool for DC motor manufacturing according to claim 1, characterized in that: The balancing weight accommodating seat (12) is provided with a plurality of first connection holes (121) on its edge for connection with the bottom plate (11).

6. The rotor assembly tool for DC motor manufacturing according to claim 1, characterized in that: The core positioning seat (13) is provided with a plurality of second connection holes (131) penetrating the top and bottom surfaces thereof for connection with the balance weight accommodating seat (12).

7. The rotor assembly tool for DC motor manufacturing according to claim 1, characterized in that: The fan blade accommodating seat (22) is provided with mounting holes (201) extending from both sides of the fan blade accommodating groove (221) to its top surface for connection with the top plate (21).

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