Motor lead wire welding positioning tool

Abstract

This utility model discloses a welding and positioning fixture for motor lead wires, comprising: a base, a guide block, a positioning mounting base, and a baffle. The base is mounted on an iron core, with a welding joint formed at its upper end and a positioning component formed at its lower end. The positioning component positions the iron core so that the base is located at a preset position on the iron core. The guide block is slidably connected to the base and moves along the radial direction of the iron core, pushing the lead wires on the iron core towards the central axis of the iron core. The positioning mounting base fixes the busbar and positions the welding end of the busbar between the lead wire and the central axis of the iron core. The number of welding ends of the busbar and the number of lead wires on the iron core are the same and correspond one-to-one. The baffle is movably connected to the base and partially blocks the welding joint. This utility model has the advantages of accurate positioning and strong welding.

Description

Technical Field

[0001] This utility model belongs to the field of motor manufacturing technology, specifically relating to motor welding equipment, and more particularly to a welding positioning fixture for motor leads. Background Technology

[0002] In the core structure of a flat-wire motor, multiple sets of flat coils are built-in, each equipped with a lead wire. After the coil winding and shaping process is completed, these lead wires need to be welded to a busbar to achieve the function of evenly distributing current to each coil through the busbar. To ensure that the core can be successfully installed in the designated position of the motor, high-precision positioning of the busbar and core is necessary during the welding operation of the busbar and lead wires. Currently, the commonly used positioning method in the industry is to set the stroke parameters of a robotic arm, which then holds the welding end of the busbar and the lead wire and moves it to the predetermined welding position. However, this method has significant limitations: on the one hand, the positioning accuracy of the robotic arm itself is limited; on the other hand, the busbar is prone to positional deviation during the movement. To overcome the above problems and effectively improve the positioning accuracy, a motor lead wire welding positioning fixture is proposed. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art.

[0004] Therefore, this utility model proposes a welding positioning fixture for motor lead wires, which has the advantages of accurate positioning and strong welding.

[0005] According to an embodiment of the present invention, a welding positioning fixture for motor lead wires includes: a base, a guide block, a positioning mounting base, and a baffle. The base is mounted on an iron core, with a welding port formed at the upper end and a positioning component formed at the lower end. The positioning component is used to position the iron core so that the base is located at a preset position on the iron core. The guide block is slidably connected to the base and moves along the radial direction of the iron core. The guide block is used to push the lead wires on the iron core toward the central axis of the iron core. The positioning mounting base is used to fix the busbar and position the welding end of the busbar between the lead wire and the central axis of the iron core. The number of welding ends of the busbar and the number of lead wires of the iron core are the same and correspond one-to-one. The baffle is movably connected to the base and is used to cover part of the welding port.

[0006] According to one embodiment of the present invention, the number of guide blocks is multiple, and the multiple guide blocks are spaced apart along the circumferential direction of the iron core.

[0007] According to one embodiment of the present invention, a slot is formed at the end of the guide block facing the lead wire, the slot being used to engage the lead wire to prevent the lead wire from shifting left or right during movement.

[0008] According to one embodiment of the present invention, the slot is arranged radially along the iron core, and the sidewall of the slot gradually narrows from the central axis of the iron core towards the outer surface.

[0009] According to one embodiment of the present invention, the guide block bearing is connected to a first bolt, which is threadedly connected to the seat body, so as to adjust the linear reciprocating movement of the guide block along the radial direction of the iron core by rotating the first bolt.

[0010] According to one embodiment of the present invention, a guide groove is formed on the side wall of the seat, and the guide block is slidably connected to the inner surface of the guide groove.

[0011] According to one embodiment of the present invention, the positioning component includes a positioning block, and a protrusion is formed on the side of the positioning block facing the iron core, the protrusion being used to engage with a groove in the side wall of the iron core.

[0012] According to one embodiment of the present invention, the baffle bearing is connected to the upper end of the base.

[0013] According to one embodiment of the present invention, a slide is formed on the upper surface of the seat, and a column is fixed on the baffle along the central axis of the iron core, with the lower end of the column slidably connected to the inner surface of the slide.

[0014] According to one embodiment of the present invention, the positioning mounting base has a plurality of first threaded holes, and the plurality of threaded holes correspond one-to-one with the second threaded holes of the Busbar. A second bolt is threaded into the first threaded hole, and the second bolt is adapted to the second threaded hole.

[0015] The beneficial effect of this utility model is that it uses a positioning component to position the base, so that the installation position of the base and multiple iron cores are consistent, which facilitates the subsequent installation of the iron cores.

[0016] The positioning mounting bracket is used to fix and position the Busbar, maintaining the relative position of the Busbar and the iron core while improving the accuracy of the relative position of the welding end and the lead wire. This avoids the need for the lead wire to move a large angle to match the welding end due to Busbar displacement, and reduces the movement distance of the lead wire.

[0017] The guide block installed on the base is used to push the lead wire, which makes the movement path of the guide block more precise and does not move the welding end significantly during the process, thus further ensuring the stability of the Busbar. At the same time, it ensures the fit between the welding end and the lead wire, and improves the strength of the weld.

[0018] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention.

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments with accompanying drawings, in which:

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model and its assembly state with the iron core and Busbar;

[0022] Figure 2 This is a schematic diagram showing the relative positions of the Busbar and the iron core after the overall structure of this utility model has been disassembled.

[0023] Figure 3 This is a partial structural disassembly diagram of this utility model;

[0024] Figure label:

[0025] 1. Base; 11. Guide groove; 12. Slide rail; 2. Guide block; 21. Slot; 3. Positioning mounting base; 4. Baffle; 41. Column; 5. Positioning block. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0027] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] The following describes in detail, with reference to the accompanying drawings, the welding and positioning fixture for the motor lead wires of this utility model.

[0030] like Figures 1-3 As shown, the motor lead wire welding positioning fixture according to an embodiment of the present invention includes: a base 1, a guide block 2, a positioning mounting seat 3, and a baffle 4; the base 1 is used to be mounted on the iron core, the upper end of the base 1 has a welding port, and the lower end of the base 1 has a positioning component, which is used to position the iron core so that the base 1 is located in a preset position of the iron core; the guide block 2 is slidably connected to the base 1, and the guide block 2 moves along the radial direction of the iron core, and the guide block 2 is used to push the lead wire on the iron core toward the central axis of the iron core; the positioning mounting seat 3 is used to fix the busbar and make the welding end of the busbar located between the lead wire and the central axis of the iron core, and the number of welding ends of the busbar and the lead wire of the iron core are the same and correspond one-to-one; the baffle 4 is movably connected to the base 1, and the baffle 4 is used to cover part of the welding port.

[0031] In this embodiment, the welding joint extends through the upper and lower ends of the base 1 to expose the lead wire area of ​​the iron core and the welding end area of ​​the busbar. First, the busbar is connected to the positioning mounting base 3. Then, the base 1 is installed on the upper end of the iron core by the positioning component, and the busbar is positioned in the preset position of the iron core. At this time, the welding end corresponds to the lead wire one by one. The corresponding welding end and lead wire are arranged in sequence along the radial direction of the iron core, and the lead wire is located between its corresponding welding end and the guide block 2. The guide block 2 is driven to push the lead wire towards the welding end until the welding end is in contact with the lead wire. At this time, the baffle 4 is used to cover part of the welding joint, and then the welding operation is performed. In this process, a positioning component is used to position the base 1, ensuring that the installation position of the base 1 is consistent with that of multiple iron cores, facilitating subsequent installation of the iron cores. A positioning mounting base 3 is used to fix and position the busbar, maintaining the relative position of the busbar and the iron core while improving the accuracy of the relative position of the welding end and the lead wire. This avoids the need for the lead wire to move at a large angle to match the welding end due to busbar displacement, reducing the movement distance of the lead wire. A guide block 2 installed on the base 1 is used to push the lead wire, making the movement path of the guide block 2 more precise, and the welding end will not move significantly during this process, further ensuring the stability of the busbar. At the same time, it ensures the fit between the welding end and the lead wire, improving the weld strength. A baffle 4 is used to reduce the impact of welding spatter on the iron core or busbar.

[0032] There are multiple guide blocks 2, which are spaced apart along the circumference of the iron core.

[0033] In this embodiment, multiple guide blocks 2 are used to control multiple leads in different areas, which improves the accuracy of the angle of the moving leads. Each guide block 2 corresponds to multiple leads, which reduces the number of guide blocks 2 while meeting the accuracy of the angle of the moving leads, thus improving work efficiency.

[0034] The guide block 2 has a slot 21 at the end facing the lead wire. The slot 21 is used to hold the lead wire in place to prevent the lead wire from shifting left or right during movement.

[0035] In this embodiment, the slot 21 is used to position the lead wire in the left and right directions, so as to avoid displacement or twisting in the left and right directions when the lead wire moves forward. This allows the lead wire to move horizontally towards the welding end, ensuring the contact area between the lead wire and the welding end. At the same time, it prevents multiple lead wires from converging together, thus ensuring the welding space.

[0036] The slot 21 is arranged radially along the iron core, and the sidewall of the slot 21 gradually narrows from the central axis of the iron core to the outer surface.

[0037] In this embodiment, when the lead wire and the welding end are attached, both the lead wire and the welding end are located in the slot 21. The slot 21 passes through the upper and lower ends of the guide block 2. The left and right sidewalls of the slot 21 gradually expand from back to front. The width of the rear end of the slot 21 is not greater than the width of the lead wire, and the width of the front end of the slot 21 is not less than the width of the lead wire, so as to facilitate the introduction of the lead wire and the welding end into the slot 21 to adjust the slight misalignment of the lead wire and the welding end.

[0038] The guide block 2 is connected to the bearing with a first bolt, which is threaded to the seat 1 so that the guide block 2 can be adjusted to move linearly back and forth along the radial direction of the iron core by rotating the first bolt.

[0039] A guide groove 11 is formed on the side wall of the base 1, and the guide block 2 is slidably connected to the inner surface of the guide groove 11.

[0040] In this embodiment, the guide groove 11 guides the guide block 2, thereby ensuring the movement path of the guide block 2 and its stability.

[0041] The positioning component includes a positioning block 5, on the side of the positioning block 5 facing the iron core, a protrusion is formed, the protrusion is used to engage with a groove in the side wall of the iron core.

[0042] In this embodiment, by using a protrusion to engage with the groove in the side wall of the iron core, the positioning of the seat 1 is achieved while ensuring the stability of the seat 1 and preventing the seat 1 from moving along the circumference of the iron core.

[0043] The baffle 4 is connected to the upper end of the base 1 by a bearing.

[0044] A slide 12 is formed on the upper surface of the base 1, and a column 41 is fixed on the baffle 4 along the central axis of the iron core. The lower end of the column 41 is slidably connected to the inner surface of the slide 12.

[0045] In this embodiment, the angle of the baffle 4 is moved by driving the column 41, so that the baffle 4 can be deviated from the welding joint or partially blocked, which improves the convenience of driving the baffle 4.

[0046] The positioning mounting base 3 has multiple first threaded holes, which correspond one-to-one with the second threaded holes of the Busbar. The first threaded holes are internally threaded with second bolts, which are adapted to the second threaded holes.

[0047] In this embodiment, a first threaded hole is provided on the positioning mounting base 3, which enables the positioning of the Busbar using the existing second threaded hole on the Busbar. This improves the stability of the Busbar and enhances the ease of operation.

[0048] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0049] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A welding and positioning fixture for motor lead wires, characterized in that, include: A base (1) is used to be mounted on an iron core. A welding joint is formed at the upper end of the base (1), and a positioning component is formed at the lower end of the base (1). The positioning component is used to position the iron core so that the base (1) is located at a preset position of the iron core. Guide block (2), the guide block (2) is slidably connected to the base (1), the guide block (2) moves along the radial direction of the iron core, the guide block (2) is used to push the lead wire on the iron core toward the central axis of the iron core; Positioning mounting base (3), the positioning mounting base (3) is used to fix the Busbar and make the welding end of the Busbar located between the lead wire and the central axis of the iron core. The number of welding ends of the Busbar and the number of lead wires of the iron core are the same and correspond one-to-one. A baffle (4) is movably connected to the base (1) and is used to block part of the welding joint.

2. The motor lead wire welding positioning fixture according to claim 1, characterized in that, The number of guide blocks (2) is multiple, and the multiple guide blocks (2) are spaced apart along the circumferential direction of the iron core.

3. The motor lead wire welding positioning fixture according to claim 2, characterized in that, The guide block (2) has a slot (21) formed on the end facing the lead wire. The slot (21) is used to hold the lead wire in order to prevent the lead wire from shifting left or right during movement.

4. The motor lead wire welding positioning fixture according to claim 3, characterized in that, The slot (21) is arranged radially along the iron core, and the sidewall of the slot (21) gradually narrows from the central axis of the iron core to the outer surface.

5. The welding and positioning fixture for motor lead wires according to claim 1, characterized in that, The guide block (2) is connected to a bearing with a first bolt, which is threaded to the seat (1) so that the guide block (2) can be adjusted to move linearly back and forth along the radial direction of the iron core by rotating the first bolt.

6. The welding and positioning fixture for motor lead wires according to claim 5, characterized in that, A guide groove (11) is formed on the side wall of the seat (1), and the guide block (2) is slidably connected to the inner surface of the guide groove (11).

7. The motor lead wire welding positioning fixture according to claim 1, characterized in that, The positioning component includes a positioning block (5), which has a protrusion on the side facing the iron core, and the protrusion is used to engage with a groove in the side wall of the iron core.

8. The motor lead wire welding positioning fixture according to claim 1, characterized in that, The baffle (4) is connected to the upper end of the seat (1) by a bearing.

9. The motor lead wire welding positioning fixture according to claim 8, characterized in that, The upper surface of the seat (1) is formed with a slide (12), and a column (41) is fixed on the baffle (4) along the central axis of the iron core. The lower end of the column (41) is slidably connected to the inner surface of the slide (12).

10. The welding and positioning fixture for motor lead wires according to claim 1, characterized in that, The positioning mounting base (3) has a plurality of first threaded holes, which correspond one-to-one with the second threaded holes of the Busbar. The first threaded holes are internally threaded with second bolts, which are adapted to the second threaded holes.

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