Motor stator lead tin dipping and testing two-in-one device and tool positioning mechanism thereof

By designing a combined equipment for tinning and testing of motor stator leads and its tooling positioning mechanism, the problem of inconsistent lead positions was solved, and the stability and efficiency of the tinning and testing process were improved.

CN116317410BActive Publication Date: 2025-10-28SHENZHEN KAIFA TECH
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Patent Information

Application Number
CN202111575720.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-12-20
Publication Date
2025-10-28
Estimated Expiration
2041-12-20

AI Technical Summary

Technical Problem

Existing equipment has difficulty ensuring the consistency of lead positioning during the tinning and testing of motor stator leads, which affects the reliability and efficiency of the test.

Method used

A combined device for tinning and testing motor stator leads and its tooling positioning mechanism were designed, including a wire groove module, a material mounting shaft, a clamping module and a rotating platform. Through the design of precise lead-out, clamping and testing windows, the device achieves stable positioning of the lead and convenient testing.

Benefits of technology

It achieves stable lead positioning, ensures consistency in position during tinning and testing, simplifies the operation process, and improves production efficiency and testing reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a combined equipment for tinning and testing of motor stator leads, along with its tooling positioning mechanism. The invention divides the two ends of the motor leads into two groups, precisely leading them out from two sets of wire slots on either side of a wire slot module. Two rotatable clamping modules are used to clamp the two groups of leads, ensuring effective positioning. Because the clamping modules have test windows exposing the wire slots, the tinned material only needs to slide along the material mounting shaft to the test positioning mechanism, exposing the tinned portions of the two groups of leads through the test windows for subsequent tests. During this process, no material movement is required, ensuring consistent material position for both tests. Especially when the tooling positioning mechanism is fixed to a rotating platform for switching workstations, the material's position remains stable throughout the switching process. Furthermore, loading and unloading are very convenient throughout the entire production process; the material simply needs to be placed on the material mounting shaft.
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Description

Technical Field

[0001] This invention relates to the field of motor manufacturing, and in particular to a combined equipment for tinning and testing motor stator leads, and its tooling positioning mechanism. Background Technology

[0002] Motor stator leads consist of a wire core and an insulation layer covering the core. During motor production, the insulation layer at both ends of the stator leads needs to be stripped and then tinned. After tinning, the tinning effect needs to be tested, primarily for withstand voltage and turn-to-turn tests. Current equipment, to ensure reliable testing, must guarantee lead positioning, requiring the lead ends to be securely fixed and ensuring consistency in material position between tests. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a two-in-one equipment for tinning and testing of stator leads and its tooling positioning mechanism, in response to the above-mentioned needs of the prior art.

[0004] The technical solution adopted by this invention to solve its technical problem is:

[0005] On the one hand, a tooling positioning mechanism for tinning motor stator leads is constructed, including:

[0006] A wire trough module, wherein two sets of wire troughs extending along a first direction are provided on both sides of the wire trough module;

[0007] A material mounting shaft extending along a first direction is mounted on the wire groove module. The material mounting shaft is provided with a test positioning mechanism for positioning the material. The material mounting shaft is used to mount the material. Three stator leads are mounted on the material. The two ends of the three stator leads are divided into two groups of leads that extend from the material along the first direction toward the wire groove module. The two groups of leads pass through two sets of wire grooves on both sides of the wire groove module.

[0008] Two clamping modules are rotatably mounted and fixed. The two clamping modules are respectively attached to both sides of the wire groove module to clamp the two sets of leads in the two sets of wire grooves. The clamping effect on the two sets of leads can be released by rotation. The clamping module also includes a test window for exposing the wire groove. After the wire ends of the two sets of leads are dipped in tin, the material can slide along the material mounting axis away from the wire groove module to the position of the test positioning mechanism so that the dipped part of the two sets of leads is exposed from the test window for testing.

[0009] Preferably, each set of grooves is arranged in an arc shape with the central axis of the material mounting shaft as the center. Both sides of the groove module have a first pressing surface and a second pressing surface protruding from the first pressing surface. The clamping module includes a third pressing surface for tightly fitting with the first pressing surface and a fourth pressing surface recessed from the third pressing surface for tightly fitting with the second pressing surface. The first pressing surface is at the same height as the bottom of the grooves on both sides of the set of grooves and cuts off the grooves on both sides. The second pressing surface is at the same height as the bottom of the groove in the middle of the set of grooves and cuts off the groove in the middle. The area where the first pressing surface and the second pressing surface cut off the groove is exposed in the test window for contact with the probe during testing.

[0010] Preferably, the first pressing surface has two conductive pieces at the locations where the two side grooves are cut off, and the second pressing surface has one conductive piece at the location where the middle groove is cut off. The three conductive pieces are spaced apart from each other and are all exposed from the test window for contact with the three probes during testing.

[0011] Preferably, the wire groove module includes a wire groove component for mounting the clamping module and a positioning component for mounting the material mounting shaft. The positioning component is fixedly mounted on the top of the wire groove component. The bottom edge of the material extends along a first direction to form a plurality of first positioning protrusions. The positioning component has a mounting hole for mounting the material mounting shaft. The positioning component also includes a plurality of second positioning protrusions that extend along the first direction away from the wire groove component and are arranged around the mounting hole. The plurality of first positioning protrusions and the plurality of second positioning protrusions engage to achieve positioning of the material during tinning.

[0012] Preferably, the material is an iron core, and the test positioning mechanism is a magnet that is radially embedded along the mounting axis of the material.

[0013] Preferably, the pressing module includes a pressure plate and a rotating shaft extending along a first direction, the rotating shaft being parallel to the first direction, one end of the pressure plate being rotatably connected to the rotating shaft, the other end of the pressure plate being provided with a positioning hole, and the grooving module being provided with a positioning post that mates with the positioning hole.

[0014] Preferably, a magnet is provided on the pressure plate, and a magnet is provided on each side of the rotating shaft on the groove module to attract the pressure plate when the pressure plate is opened or closed.

[0015] Secondly, a device for tinning and testing motor stator leads is constructed, comprising a rotating platform, a tooling positioning mechanism mounted on the rotating platform, a withstand voltage test module and an inter-turn test module arranged sequentially along the rotation path of the rotating platform, wherein the rotating platform is perpendicular to a first direction, and both the withstand voltage test module and the inter-turn test module include two probe clamping robotic arms arranged opposite each other, and each probe clamping robotic arm has a set of probes arranged in the direction toward the probe clamping robotic arm on the opposite side.

[0016] Preferably, the pressure resistance test module includes a first cylinder, a second cylinder, a third cylinder, and a fourth cylinder, and the fourth cylinder is further connected to a probe extending along a second direction, which is perpendicular to the first direction;

[0017] The second cylinder is positioned directly opposite the material mounting shaft that has been rotated to the pressure test position in a first direction. The second cylinder is connected to two material clamping robotic arms for clamping the material. The second cylinder is connected to the first cylinder, and the first cylinder is used to drive the second cylinder to move along the first direction.

[0018] The probe of the fourth cylinder is positioned directly opposite the material rotated to the pressure resistance test position in the second direction. The third cylinder is connected to two probe clamping robotic arms to drive two sets of probes through the corresponding test windows to clamp two sets of leads. The third cylinder and the fourth cylinder are connected. The fourth cylinder is used to drive the probe on it to move along the second direction, and at the same time drive the third cylinder to move along the second direction.

[0019] Preferably, the inter-turn test module includes a fifth cylinder and a sixth cylinder;

[0020] The sixth cylinder is connected to two probe-holding robotic arms to drive two sets of probes through the corresponding test windows to hold two sets of leads. The sixth cylinder is connected to the fifth cylinder, which drives the sixth cylinder to move along a third direction. The two probe-holding robotic arms can run under the drive of the fifth cylinder to the test window facing the tooling positioning mechanism that is in the inter-turn test position. The third direction is perpendicular to the first direction.

[0021] The stator lead tinning and testing combined equipment and its tooling positioning mechanism of the present invention have the following beneficial effects: The present invention divides the motor leads into two groups and accurately leads them out from two groups of wire slots on both sides of the wire slot module. Two rotatable clamping modules are used to clamp the two groups of leads to ensure the positioning effect of the leads. Because the clamping modules have test windows that expose the wire slots, the tinned material only needs to slide along the material mounting shaft to the position of the test positioning mechanism so that the tinned part of the two groups of leads is exposed from the test windows for the next two tests. During this process, there is no need to move the material, ensuring that the material position is consistent for the two tests. In particular, when the tooling positioning mechanism is fixed on the rotating platform to switch the work station, the material position is always stable when switching between work stations. Moreover, loading and unloading are very convenient throughout the production process; the material only needs to be placed on the material mounting shaft. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort:

[0023] Figure 1 This is an exploded view of the tooling positioning mechanism of the present invention;

[0024] Figure 2 This is a schematic diagram showing the formation of two sets of leads;

[0025] Figure 3 This is a schematic diagram showing the position of the material on the tooling positioning mechanism during tin dipping;

[0026] Figure 4 This is a schematic diagram showing the position of the material on the tooling positioning mechanism during testing;

[0027] Figure 5 This is a schematic diagram showing the relationship between the probe and the tooling positioning mechanism during testing;

[0028] Figure 6 This is a schematic diagram of the withstand voltage test module;

[0029] Figure 7 This is a schematic diagram of the inter-turn test module. Detailed Implementation

[0030] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Typical embodiments of the invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of the present invention more thorough and complete. It should be understood that the embodiments of the present invention and the specific features thereof are detailed descriptions of the technical solutions of this application, and not limitations thereof. Where there is no conflict, the embodiments of the present invention and the technical features thereof can be combined with each other.

[0031] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0032] Unless otherwise defined, 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 pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0033] The terms "first," "second," and other ordinal numbers used in this specification are used to describe various constituent elements, but these constituent elements are not limited by these terms. The purpose of using these terms is solely to distinguish one constituent element from others. For example, without departing from the scope of the invention, a first constituent element may be named a second constituent element, and similarly, a second constituent element may be named a first constituent element.

[0034] refer to Figure 1 3-4, The tooling positioning mechanism for tinning the motor stator leads in this embodiment includes:

[0035] The wire trough module 4 has two sets of wire troughs 40 extending along a first direction on both sides. The first direction mentioned in this article is the vertical direction in the figure.

[0036] A material mounting shaft 2 extending along the first direction is mounted on the wire groove module 4. The material mounting shaft 2 is provided with a test positioning mechanism 3 for positioning the material 1 for testing. The material mounting shaft 2 is used to mount the material 1. Three stator leads 100 are mounted on the material 1. The two ends of the three stator leads 100 are divided into two groups of leads that extend from the material 1 along the first direction toward the wire groove module 4 and pass through the two groups of wire grooves 40 on both sides of the wire groove module 4.

[0037] Two clamping modules 5 are rotatably mounted and fixed. The rotating shaft 52 of each clamping module 5 is parallel to a first direction. The two clamping modules 5 are respectively pressed against the two sides of the wire groove module 4 to clamp the two sets of leads in the two sets of wire grooves 40. The clamping effect on the two sets of leads can be released by rotation. Each clamping module 5 also includes a test window 510 for exposing the wire groove 40. After the wire ends of the two sets of leads are tinned, the material 1 can slide along the material mounting shaft 2 away from the wire groove module 4 to the position of the test positioning mechanism 3 so that the tinned part of the two sets of leads is exposed from the test window 510 for testing. Figure 3 In the process of immersion tinning, material 1 falls to the bottom position, such as... Figure 4 During the test, material 1 was lifted upwards. (Reference) Figure 5 During testing, two probe clamping robotic arms 91 facing each other are used to assist in the testing. Each probe clamping robotic arm 91 has a set of probes 92 arranged in the direction of the probe clamping robotic arm 91 facing the opposite side. The two probe clamping robotic arms 91, along with the two sets of probes 92, clamp the wire groove module 4 together at the test window 510 position.

[0038] The following is a detailed explanation of each structure.

[0039] Material 1 has a ring-shaped structure and can be used to wind stator leads. After each stator lead is wound multiple times around Material 1, its two ends are led out in the first direction from different angle positions on Material 1. Moreover, the angle positions of the two ends of each stator lead on Material 1 differ by 180°. Figure 2 , Figure 2 This diagram only shows the angular distribution of the two sets of leads; therefore, the extension direction of the leads is not shown according to their actual direction. The dashed lines in the diagram indicate that the lead winding is omitted and do not represent the actual routing of the leads. For example, if the two ends of the first stator lead L are denoted as L1 and L2, the two ends of the second stator lead M are denoted as M1 and M2, and the two ends of the third stator lead N are denoted as N1 and N2, then after the three stator leads are wound around material 1, their clockwise order is L1, M1, N1, L2, M2, N2. L1, M1, and N1 form one group, and L2, M2, and N2 form another group. In actual routing, L1 and N2 are symmetrical about the wire groove module 4, M1 and M2 are symmetrical about the wire groove module 4, and N1 and L2 are symmetrical about the wire groove module 4.

[0040] refer to Figure 1 The grooving module 4 includes a grooving component 42 for mounting the clamping module 5 and a positioning component 41 for mounting the material mounting shaft 2. The positioning component 41 is fixedly mounted on the top of the grooving component 42, for example, by bolt locking.

[0041] The bottom edge of the material 1 extends along a first direction to form a plurality of first positioning protrusions 11, specifically three. The positioning member 41 has a mounting hole for mounting the material mounting shaft 2. The positioning member 41 also includes a plurality of second positioning protrusions 411, also specifically three, extending along the first direction away from the wire groove member 42 and surrounding the mounting hole. The three first positioning protrusions 11 and the three second positioning protrusions 411 interlock to achieve positioning of the material 1 during tinning. Specifically, the first positioning protrusion 11 is precisely inserted between two second positioning protrusions 411, and the second positioning protrusions 411 are precisely inserted between two first positioning protrusions 11.

[0042] In this embodiment, the material 1 is an iron core, and the test positioning mechanism 3 is a magnet that is radially embedded along the material mounting axis 2. Thus, during the test, we only need to apply an external force to pull the material 1 up to the position of the magnet and then remove the external force. The material 1 is fixed by the magnetic force of the magnet, which is very convenient.

[0043] Because each set of leads is drawn along the arc edge of material 1, each set of leads is distributed in an arc shape with the central axis as the center. Material 1 and material mounting shaft 2 are concentrically nested, located in a straight line that ensures each set of leads extends in a consistent first direction. Each set of grooves 40 is distributed in an arc shape with the central axis of the material mounting shaft 2 as the center. In this embodiment, the middle groove 40 of each set of grooves 40 is slightly higher than the two side grooves 40. Specifically, both sides of the groove module 4 have a first pressing surface and a second pressing surface protruding from the first pressing surface, as shown in the figure. The top surface of the protrusion 421 is the second pressing surface. The pressing module 5 includes a third pressing surface for tightly fitting with the first pressing surface and a fourth pressing surface formed by recessing from the third pressing surface for tightly fitting with the second pressing surface. For example, the recessed part of the lower frame of the pressure plate 51 in the figure forms the fourth pressing surface. The first pressing surface is at the same height as the bottom of the two side grooves 40 in a set of grooves 40 and cuts off the two side grooves 40. The second pressing surface is at the same height as the bottom of the middle groove 40 in a set of grooves 40 and cuts off the middle groove 40. The area where the first pressing surface and the second pressing surface cut off the groove 40 is exposed in the test window 510 for contact with the probe 92 during testing.

[0044] It is understandable that in this embodiment, in addition to being cut by the second pressing surface, the middle wire groove 40 in a group of wire grooves 40 is also partially cut by the first pressing surface (the strip area in the figure where the wire groove component 42 and the upper frame of the pressure plate 51 are directly opposite each other, which simultaneously cuts three wire grooves 40. In fact, the middle part of this strip area can also protrude a second pressing surface, but this embodiment is not designed in this way). At this cutting position (the position where the middle wire groove 40 is cut by the first pressing surface), the third pressing surface cannot be attached to the first pressing surface. A fourth pressing surface can be formed by recessing at the corresponding position on the third pressing surface to avoid the lead wire passing through this position in the middle wire groove 40.

[0045] Furthermore, preferably, this embodiment also has two conductive sheets 423, such as copper sheets, on the first pressing surface at the position where the two side grooves 40 are cut off, and one conductive sheet 423 on the second pressing surface at the position where the middle groove 40 is cut off. The three conductive sheets 423 are spaced apart from each other and are all exposed from the test window 510 for contact with the three probes 92 during testing. By setting the copper sheets, the probes 92 press the leads onto the copper sheets, which can ensure a more reliable electrical connection between the probes 92 and the leads.

[0046] Furthermore, the clamping module 5 includes a pressure plate 51 and a rotating shaft 52 extending along a first direction, the rotating shaft 52 being, for example, a pin. One end of the pressure plate 51 is rotatably connected to the rotating shaft 52, and the other end of the pressure plate 51 is provided with a positioning hole 512. The groove module 4 is provided with a positioning post 422 that cooperates with the positioning hole 512.

[0047] To ensure that the pressure plate 51 can be reliably opened and closed, a magnet is provided on the pressure plate 51. A magnet is provided on each side of the rotating shaft 52 on the groove module 4, so as to attract the pressure plate 51 when it is opened or closed. As shown in the figure, magnet 6 is the magnet that attracts the pressure plate 51 when it is opened.

[0048] Based on the above-described tooling positioning mechanism, this invention also designs a combined device for tinning and testing motor stator leads. This device includes a rotating platform, the aforementioned tooling positioning mechanism mounted on the rotating platform, and a withstand voltage test module and an inter-turn test module sequentially arranged along the rotation path of the rotating platform. The rotating platform is perpendicular to a first direction. The tooling positioning mechanism is specifically mounted on the edge of the rotating platform. The rotating platform, carrying the tooling positioning mechanism, rotates from the tinning station to the withstand voltage test station, and then into the inter-turn test station. Both the withstand voltage test module and the inter-turn test module include the following components: Figure 5 The two probe-holding robotic arms 91 shown are positioned opposite each other, and each of the probe-holding robotic arms 91 has a set of probes arranged in a direction toward the probe-holding robotic arm 91 on the opposite side.

[0049] refer to Figure 6 Specifically, the pressure resistance test module includes a first cylinder 71, a second cylinder 72, a third cylinder 75 and a fourth cylinder 74. The fourth cylinder 74 is also connected to a probe 92 extending along a second direction, which is perpendicular to the first direction.

[0050] The second cylinder 72 is directly opposite the material mounting shaft 2, which is rotated to the pressure test position, in the first direction. The second cylinder 72 is a clamping cylinder, which is connected to two material clamping robotic arms 73 for clamping the material 1. The second cylinder 72 is connected to the first cylinder 71, and the first cylinder 71 is used to drive the second cylinder 72 to move along the first direction.

[0051] The probe of the fourth cylinder 74 and the material 1 rotated to the pressure resistance test position are positioned opposite each other in the second direction. The third cylinder 75 is a clamping cylinder, which is connected to two probe clamping robotic arms 91 to drive two sets of probes 92 through the corresponding test window 510 to clamp two sets of leads. The third cylinder 75 and the fourth cylinder 74 are connected. The fourth cylinder 74 is used to drive the probe 92 on it to move in the second direction, and at the same time drive the third cylinder 75 to move in the second direction.

[0052] refer to Figure 7 Specifically, the inter-turn test module includes a fifth cylinder 81 and a sixth cylinder 82. The sixth cylinder 82 is positioned directly opposite the wire groove module 4, which has been rotated to the inter-turn test position, in a third direction, which is perpendicular to the first direction.

[0053] The sixth cylinder 82 is a clamping cylinder, which is connected to two probe clamping robotic arms 91 to drive two sets of probes 92 through the corresponding test window 510 to clamp two sets of leads. The sixth cylinder 82 is connected to the fifth cylinder 81, and the fifth cylinder 81 drives the sixth cylinder 82 to move in a third direction.

[0054] The production process of the equipment based on this embodiment is as follows:

[0055] 1) Wrap the three motor leads around the material 1. The two ends of the three motor leads are divided into two groups of leads, each group consisting of three leads. Manually put the material 1 onto the material mounting shaft 2 and place the material 1 to the bottom, that is, until the three first positioning protrusions 11 and the three second positioning protrusions 411 interlock. Close the two pressure plates 51 to press down the three leads on both sides.

[0056] 2) The rotating platform moves the tooling positioning mechanism to the tin-dipping station, where the wire ends leading out from the wire trough 40 will be tin-dipped;

[0057] 3) After tinning is completed, the rotating platform rotates, driving the tooling positioning mechanism to rotate to the withstand voltage test position. At this time, the second cylinder 72 and the material mounting shaft 2 are directly opposite each other in the first direction, and the probe of the fourth cylinder 74 and the material 1 rotated to the withstand voltage test position are directly opposite each other in the second direction. The first cylinder 71 drives the second cylinder 72 to move down in the first direction to the position of the material 1. The second cylinder 72 drives the two material clamping robotic arms 73 to clamp the material 1. The first cylinder 71 then drives the second cylinder 72 to move up in the first direction to the position of the test positioning mechanism 3. The first cylinder 71 retracts to release the material. 1. Material 1 is attracted and positioned by a magnet. The first cylinder 71 then drives the second cylinder 72 to retract to the initial position. The fourth cylinder 74 operates, driving the probe 92 on it to move along the second direction to abut against the material 1. At the same time, it drives the third cylinder 75 to move along the second direction to face the test window 510. Then, the third cylinder 75 drives the two probe clamping robotic arms 91 to drive the two sets of probes 92 through the corresponding test window 510 to clamp the two sets of leads. Then, the withstand pressure test begins. After the withstand pressure test is completed, the third cylinder 75 retracts to release the wire groove 42, and the fourth cylinder 74 retracts to the initial position.

[0058] Among them, the six probes 92 of the test window 510 and the probe 92 that contacts the material 1 are all connected to the existing pressure resistance test equipment. The main test principle is that the probe 92 that contacts the material 1 corresponds to the positive and negative poles of the other probes 92 respectively, and can apply test signals and provide feedback on test results.

[0059] 4) After the withstand voltage test is completed, the rotating platform rotates to drive the tooling positioning mechanism to rotate to the inter-turn test. At this time, the sixth cylinder 82 and the wire groove component 42 are set facing each other in the third direction. The fifth cylinder 81 drives the sixth cylinder 82 to move along the third direction to the two probe clamping robotic arms 91 on the sixth cylinder 82 facing the test window 510. The sixth cylinder 82 then drives the two sets of probes to pass through the corresponding test window 510 to clamp the two sets of leads. All six probes 92 of the test window 510 are connected to the existing inter-turn test equipment. Then the inter-turn test begins. After the inter-turn test is completed, the sixth cylinder 82 retracts to release the wire groove component 42, and the fifth cylinder 81 retracts to the initial position.

[0060] In summary, the stator lead tinning and testing combined equipment and its tooling positioning mechanism of the present invention have the following beneficial effects: The present invention divides the motor leads into two groups and accurately leads them out from two groups of wire slots on both sides of the wire slot module. Two rotatable clamping modules are used to clamp the two groups of leads, ensuring the positioning effect of the leads. Because the clamping modules have test windows that expose the wire slots, the tinned material only needs to slide along the material mounting shaft to the position of the test positioning mechanism, so that the tinned part of the two groups of leads is exposed from the test window for the next two tests. During this process, there is no need to move the material, ensuring that the material position is consistent for the two tests. In particular, when the tooling positioning mechanism is fixed on the rotating platform to switch the workstation, the material position is always stable when switching between workstations. Moreover, loading and unloading are very convenient throughout the production process; the material only needs to be placed on the material mounting shaft.

[0061] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A tooling positioning mechanism for tinning motor stator leads, characterized in that, include: The wire trough module (4) has two sets of wire troughs (40) extending along the first direction on both sides; A material mounting shaft (2) extending along the first direction is mounted on the wire groove module (4). The material mounting shaft (2) is provided with a test positioning mechanism (3) for positioning the material (1). The material mounting shaft (2) is used to cover the material (1). Three stator leads are mounted on the material (1). The two ends of the three stator leads are divided into two groups of leads that extend from the material (1) along the first direction toward the wire groove module (4). The two groups of leads pass through the two groups of wire grooves (40) on both sides of the wire groove module (4). Two clamping modules (5) are rotatably mounted and fixed. The two clamping modules (5) are respectively attached to the two sides of the wire groove module (4) to clamp the two sets of leads in the two sets of wire grooves (40). The clamping effect on the two sets of leads can be removed by rotating and opening. The clamping module (5) also includes a test window (510) for exposing the wire groove (40). After the wire ends of the two sets of leads are tinned, the material (1) can slide along the material mounting axis (2) away from the wire groove module (4) to the position of the test positioning mechanism (3) so that the tinned part of the two sets of leads is exposed from the test window (510) for testing.

2. The tooling positioning mechanism for tinning motor stator leads according to claim 1, characterized in that, Each set of grooves (40) is arranged in an arc shape with the central axis of the material mounting shaft (2) as the center. The groove module (4) has a first pressing surface and a second pressing surface protruding from the first pressing surface on both sides. The pressing module (5) includes a third pressing surface for tightly fitting with the first pressing surface and a fourth pressing surface formed from the third pressing surface for tightly fitting with the second pressing surface. The first pressing surface is at the same height as the bottom of the grooves (40) on both sides of the set of grooves (40) and cuts off the grooves (40) on both sides. The second pressing surface is at the same height as the bottom of the groove (40) in the middle of the set of grooves (40) and cuts off the middle groove (40). The area where the first pressing surface and the second pressing surface cut off the groove (40) is exposed in the test window (510) for contact with the probe during testing.

3. The tooling positioning mechanism for tinning motor stator leads according to claim 2, characterized in that, The first pressing surface has two conductive pieces (423) at the position where the two side grooves (40) are cut off, and the second pressing surface has one conductive piece (423) at the position where the middle groove (40) is cut off. The three conductive pieces (423) are spaced apart from each other and are all exposed from the test window (510) so that they can abut against the three probes during the test.

4. The tooling positioning mechanism for tinning motor stator leads according to claim 1, characterized in that, The wire groove module (4) includes a wire groove component (42) for mounting the clamping module (5) and a positioning component (41) for mounting the material mounting shaft (2). The positioning component (41) is fixedly mounted on the top of the wire groove component (42). The bottom edge of the material (1) extends along a first direction to form a plurality of first positioning protrusions (11). The positioning component (41) is provided with a mounting hole for mounting the material mounting shaft (2). The positioning component (41) also includes a plurality of second positioning protrusions (411) that extend along the first direction away from the wire groove component (42) and are arranged around the mounting hole. The plurality of first positioning protrusions (11) and the plurality of second positioning protrusions (411) engage to achieve positioning of the material (1) during tinning.

5. The tooling positioning mechanism for tinning motor stator leads according to claim 1, characterized in that, The material (1) is an iron core, and the test positioning mechanism (3) is a magnet that is radially embedded along the material mounting axis (2).

6. The tooling positioning mechanism for tinning motor stator leads according to claim 1, characterized in that, The pressing module (5) includes a pressure plate (51) and a rotating shaft (52) extending along a first direction. The rotating shaft (52) is parallel to the first direction. One end of the pressure plate (51) is rotatably connected to the rotating shaft (52). The other end of the pressure plate (51) is provided with a positioning hole (512). The groove module (4) is provided with a positioning post (422) that cooperates with the positioning hole (512).

7. The tooling positioning mechanism for tinning motor stator leads according to claim 6, characterized in that, A magnet is provided on the pressure plate (51), and a magnet is provided on both sides of the rotating shaft (52) on the groove module (4) to attract the pressure plate (51) when the pressure plate (51) is opened or closed.

8. A combined device for tinning and testing motor stator leads, characterized in that, The device includes a rotating platform, a tooling positioning mechanism as described in any one of claims 1-7 mounted on the rotating platform, a withstand voltage test module and an inter-turn test module arranged sequentially along the rotation path of the rotating platform, the rotating platform being perpendicular to a first direction, and both the withstand voltage test module and the inter-turn test module including two probe clamping robotic arms (91) arranged opposite each other, each of the probe clamping robotic arms (91) having a set of probes arranged in a direction toward the opposite probe clamping robotic arm (91).

9. The combined equipment for tinning and testing motor stator leads according to claim 8, characterized in that, The pressure resistance test module includes a first cylinder (71), a second cylinder (72), a third cylinder (75) and a fourth cylinder (74). The fourth cylinder (74) is also connected to a probe extending along a second direction, which is perpendicular to the first direction. The second cylinder (72) is positioned directly opposite the material mounting shaft (2) rotated to the pressure test position in the first direction. The second cylinder (72) is connected to two material clamping robotic arms (73) for clamping the material (1). The second cylinder (72) is connected to the first cylinder (71), and the first cylinder (71) is used to drive the second cylinder (72) to move along the first direction. The probe of the fourth cylinder (74) and the material (1) rotated to the pressure test position are positioned facing each other in the second direction. The third cylinder (75) is connected to two probe clamping robotic arms (91) to drive two sets of probes through the corresponding test window (510) to clamp two sets of leads. The third cylinder (75) and the fourth cylinder (74) are connected. The fourth cylinder (74) is used to drive the probe on it to move in the second direction, and at the same time drive the third cylinder (75) to move in the second direction.

10. The combined equipment for tinning and testing motor stator leads according to claim 8, characterized in that, The inter-turn test module includes a fifth cylinder (81) and a sixth cylinder (82); The sixth cylinder (82) is connected to two probe clamping robotic arms (91) to drive two sets of probes through the corresponding test window (510) to clamp two sets of leads. The sixth cylinder (82) is connected to the fifth cylinder (81). The fifth cylinder (81) is used to drive the sixth cylinder (82) to move along a third direction. The two probe clamping robotic arms (91) can run under the drive of the fifth cylinder (81) to the test window (510) facing the tooling positioning mechanism that is in the inter-turn test position. The third direction is perpendicular to the first direction.

Citation Information

Patent Citations

  • Motor stator lead wire tin immersion and test two-in-one device and tool positioning mechanism thereof

    CN216599366U