Motor stator coil size detection device

Abstract

The utility model discloses a motor stator coil size detection device. An upper bracket is in sliding fit with a guide shaft; the upper driver is used for driving the upper bracket to linearly move along the guide shaft and is connected with the upper bracket; the upper detection assembly is connected with the upper bracket, and a first feeding size is formed when the upper detection assembly feeds the coil under the action of the upper driver; the lower bracket is in sliding fit with the guide shaft; the lower driver is connected with the lower bracket; the lower detection assembly is connected with the lower bracket, and a second feeding size is formed when the lower detection assembly feeds the coil under the action of the lower driver; and judging whether the coil is qualified or not according to the first feeding size and / or the second feeding size. According to the utility model, a plurality of sizes on the coil can be detected at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a device for detecting the size of a motor stator coil. Background Art

[0002] Typically, a motor stator consists of a stator core and a winding coil embedded in the stator core's winding slots. After the winding coil is wound on the stator core, a portion of the coil extends outside the axial end face of the stator core, exposing the wire to the outside of the stator core. After the stator is installed in the motor housing, if the outer and inner diameters of the winding coil are not restricted, the stator winding coil will interfere with the rotor, potentially damaging the stator winding coil. Therefore, the outer and inner diameters of the winding coil must be regulated during stator manufacturing.

[0003] The winding package is usually tidied by a stator shaping and expansion device. The function of the stator shaping and expansion device is to expand the winding package from the inner package along the radial direction of the winding package, and to squeeze the part of the winding package exposed outside the stator core from the outside to the inside, thereby arranging the outer and inner diameters of the winding package so that the winding package meets the requirements for assembly with the rotor.

[0004] However, due to factors such as the winding method, the size of the windings on each stator will be different even for the same model of motor stator. Therefore, even if the stator shaping and expansion device is used to shape the windings, there will still be a small number of stator windings that are unqualified. Based on this, it is necessary to test the shaped windings to determine whether the windings are qualified before leaving the factory.

[0005] Existing wire package inspections are all done manually using inspection tools to conduct one-on-one targeted inspections of each item on the wire package. During the inspection process of the wire package, due to the need to fully measure a large number of items, the inspection process takes a long time and requires a large number of types of inspection tools. At the same time, the storage of inspection tools and other tools also creates certain difficulties. Summary of the Invention

[0006] In view of the above problems, the present invention provides a device for detecting the size of a motor stator coil. The present invention can detect multiple sizes of the coil at the same time.

[0007] The technical solutions to the above technical problems are as follows:

[0008] The motor stator coil size detection device includes:

[0009] Guide shaft;

[0010] An upper bracket, wherein the upper bracket is in sliding cooperation with the guide shaft;

[0011] An upper driver for driving the upper bracket to move linearly along the guide shaft, the upper driver being connected to the upper bracket;

[0012] an upper detection assembly connected to the upper bracket, wherein the upper detection assembly forms a first feeding size when feeding the wire package under the action of the upper driver;

[0013] A lower bracket, the lower bracket is in sliding cooperation with the guide shaft;

[0014] a lower driver for driving the lower bracket to move linearly along the guide shaft, the lower driver being connected to the lower bracket;

[0015] a lower detection assembly connected to the lower bracket, wherein the lower detection assembly forms a second feeding size when feeding the wire package under the action of the lower driver;

[0016] Whether the wire package is qualified is determined based on the first feed size and / or the second feed size.

[0017] The advantages of the utility model are:

[0018] During testing, the present invention activates an upper driver to indirectly drive the upper detection assembly toward the wire package, while activating a lower driver to indirectly drive the lower detection assembly to move and feed the wire package. The upper and lower detection assemblies squeeze the wire package, and the wire package's compliance is determined based on the first and / or second feed dimensions. The present detection device combines various dimensions to simultaneously test multiple items, such as the outer diameter, inner diameter, and height of a wire package. This significantly reduces time required for wire package dimension testing, while also utilizing a machine for automated testing and determination, saving labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional diagram of the motor stator coil size detection device.

[0020] Figure 2 This is a cross-sectional view of the motor stator coil size detection device.

[0021] Figure 3 It is a working diagram.

[0022] Markings in the accompanying drawings: winding A, stator core B, guide shaft 1.

[0023] Upper bracket 2, upper connecting plate 20, first guide sleeve 20a, second guide sleeve 20b, upper supporting plate 21, upper guide shaft 22, first limiting component 22a, upper spring 23.

[0024] Upper driver 3, upper linear drive component 3a, upper mounting plate 3b.

[0025] Upper detection assembly 4 , upper outer detection sleeve 40 , upper inner detection sleeve 41 , and first annular groove 42 .

[0026] Lower bracket 5 , lower connecting plate 50 , third guide sleeve 50 a , fourth guide sleeve 50 b , lower supporting plate 51 , lower guide shaft 52 , second position-limiting component 52 a , lower spring 53 .

[0027] Lower driver 6, lower linear drive component 6a, lower mounting plate 6b.

[0028] Lower detection assembly 7 , lower outer detection sleeve 70 , lower inner detection sleeve 71 , and second annular groove 72 .

[0029] First displacement detection assembly 8 , first mounting seat 80 , first linear displacement sensor 81 , first spring 82 .

[0030] Second displacement detection assembly 9 , second mounting seat 90 , second linear displacement sensor 91 , second spring 92 . DETAILED DESCRIPTION

[0031] The present invention will be further described below with reference to the accompanying drawings and specific implementation methods.

[0032] like Figures 1 to 3 The motor stator winding size detection device of the present invention includes a guide shaft 1, an upper bracket 2, an upper driver 3, an upper detection component 4, a lower bracket 5, a lower driver 6, and a lower detection component 7. Each part and the relationship between the parts are described below.

[0033] The guide shaft 1 is a cylindrical polished rod, and the upper bracket 2 is in sliding cooperation with the guide shaft 1 ; the upper bracket 2 can be driven by the upper driver 3 to move up and down along the axial direction of the guide shaft 1 .

[0034] The upper bracket 2 includes an upper connecting plate 20, an upper supporting plate 21, an upper guide shaft 22, and an upper spring 23. The upper connecting plate 20 is connected to the upper driver 3, and the upper connecting plate 20 slides with the guide shaft 1. The upper connecting plate 20 is provided with an upper first guide sleeve 20a, and the upper connecting plate 20 slides with the guide shaft 1 through the upper first guide sleeve 20a.

[0035] The upper guide shaft 22 passes through the upper connecting plate 20 and slides with the upper connecting plate 20. The upper connecting plate 20 is provided with a second guide sleeve 20b. The upper connecting plate 20 slides with the upper guide shaft 22 through the second guide sleeve 20b. A first limiting component 22a is fixed to one end of the upper guide shaft 22. The first limiting component 22a is used to limit the second guide sleeve 20b.

[0036] The other end of the upper guide shaft 22 is fixed to the upper supporting plate 21 . The upper spring 23 is sleeved on the upper guide shaft 22 . One end of the upper spring 23 abuts against the upper connecting plate 20 , and the other end of the upper spring 23 abuts against the upper supporting plate 21 .

[0037] The upper driver 3 is used to drive the upper bracket 2 to move linearly along the guide shaft 1. The upper driver 3 is connected to the upper bracket 2. The upper driver 3 includes an upper linear drive component 3a and an upper mounting plate 3b. The upper mounting plate 3b is located above the upper bracket 2 and is fixed to the guide shaft 1. The upper linear drive component 3a is fixed to the upper mounting plate 3b. The upper linear drive component 3a can be a pneumatic cylinder, a hydraulic cylinder, or the like. In this embodiment, the upper linear drive component 3a is preferably a pneumatic cylinder.

[0038] The upper detection component 4 is connected to the upper bracket 2. The upper detection component 4 forms a first feed size when feeding toward the wire package A under the action of the upper driver 3; when the upper driver 3 drives the upper bracket 2 to move toward the wire package A, the upper detection component 4 feeds toward the wire package A. Therefore, the upper detection component 4 feeds toward the wire package A under the indirect action of the upper driver 3.

[0039] The upper detection assembly 4 includes an upper outer detection sleeve 40 and an upper inner detection sleeve 41. One end of the upper inner detection sleeve 41 is located inside the upper outer detection sleeve 40 and fixed to the upper outer detection sleeve 40. A first annular groove 42 for accommodating a portion of the wire package A is formed between the upper outer detection sleeve 40 and the upper inner detection sleeve 41.

[0040] The lower bracket 5 is in sliding engagement with the guide shaft 1. The lower bracket 5 includes a lower connecting plate 50, a lower supporting plate 51, a lower guide shaft 52, and a lower spring 53. The lower connecting plate 50 is connected to the lower driver 6. The lower connecting plate 50 is in sliding engagement with the guide shaft 1. An upper third guide sleeve 50a is provided on the lower connecting plate 50. The upper connecting plate 50 is in sliding engagement with the guide shaft 1 through the upper third guide sleeve 50a.

[0041] One end of the lower guide shaft 52 passes through the lower connecting plate 50 and slides with the lower connecting plate 50. The lower connecting plate 50 is provided with a fourth guide sleeve 50b. The lower connecting plate 50 slides with the lower guide shaft 52 through the fourth guide sleeve 50b. A second limiting component 52a is fixed to one end of the lower guide shaft 52. The second limiting component 52a is used to limit the fourth guide sleeve 50b.

[0042] The other end of the lower guide shaft 52 is fixed to the lower supporting plate 51 . The lower spring 53 is sleeved on the lower guide shaft 52 . One end of the lower spring 53 abuts against the lower connecting plate 50 , and the other end of the lower spring 53 abuts against the lower supporting plate 51 .

[0043] The lower driver 6 is used to drive the lower bracket 5 to move linearly along the guide shaft 1. The lower driver 6 is connected to the lower bracket 5. The lower driver 6 includes a lower linear driving component 6a and a lower mounting plate 6b. The lower mounting plate 6b is located below the lower bracket 5. The lower linear driving component 6a is fixed to the lower mounting plate 6b. The lower linear driving component 6a can be a pneumatic cylinder, a hydraulic cylinder, etc. In this embodiment, the lower linear driving component 6a is preferably a pneumatic cylinder.

[0044] The centers of the lower detection component 7 and the upper detection component 7 are located on the same straight line. The lower detection component 7 is connected to the lower driver 6. When the lower detection component 7 feeds the wire package A under the action of the lower driver 6, a second feed size is formed. Whether the wire package A is qualified is judged based on the first feed size and / or the second feed size.

[0045] In this embodiment, the lower detection assembly 7 includes a lower outer detection sleeve 70 and a lower inner detection sleeve 71. One end of the lower inner detection sleeve 71 is located inside the lower outer detection sleeve 70 and is fixed to the lower outer detection sleeve 70. A second annular groove 72 for accommodating a portion of the wire package A is formed between the lower outer detection sleeve 70 and the lower inner detection sleeve 71.

[0046] This embodiment also includes a first displacement detection component 8 for detecting the displacement of the upper bracket 2 and a second displacement detection component 9 for detecting the displacement of the lower bracket 5. The first displacement detection component 8 is connected to the upper bracket 2, and the second displacement detection component 9 is connected to the lower bracket 5.

[0047] The first displacement detection assembly 8 includes a first mounting seat 80, a first linear displacement sensor 81, and a first spring 82. The main body of the first linear displacement sensor 81 is installed on the first mounting seat 80, the connecting rod of the first linear displacement sensor 81 is fixed to the upper bracket 2, and the first spring 82 is sleeved on the connecting rod of the first linear displacement sensor 81. One end of the first spring 82 is against the main body of the first linear displacement sensor 81, and the other end of the first spring 82 is against the upper bracket 2.

[0048] The second displacement detection assembly 9 includes a second mounting seat 90, a second linear displacement sensor 91, and a second spring 92. The main body of the second linear displacement sensor 91 is mounted on the second mounting seat 90, the connecting rod of the second linear displacement sensor 91 is fixed to the lower bracket 5, the second spring 92 is sleeved on the connecting rod of the second linear displacement sensor 91, one end of the second spring 92 is against the main body of the second linear displacement sensor 91, and the other end of the second spring 92 is against the lower bracket 5.

[0049] The use process of this utility model is as follows:

[0050] Insert one end of the wire package A into the second annular groove 72 so that the wire package A is initially positioned on the lower detection component 7. Start the upper driver 3 and the lower driver 6. The upper driver 3 drives the upper bracket 2 to move downward, that is, to feed toward one end of the wire package A. The lower driver 6 drives the lower bracket 5 to move upward. In this way, one end of the wire package A enters the first annular groove 42. Under the continuous advancement of the upper driver 3 and the lower driver 6, the upper detection component 4 and the lower detection component 7 are squeezed from both ends toward the middle of the stator core B. In this process, the upper bracket 2 drives the first displacement detection component 8 to move, so that the first displacement detection component 8 detects the displacement of the upper bracket 2, and then it is concluded that the upper detection component 4 is feeding toward the wire package A. The lower bracket 5 drives the second displacement detection component 9 to move, so that the second displacement detection component 9 detects the displacement of the lower bracket 5, and then obtains the second feed size of the lower detection component 7 feeding the wire package A. According to the first feed size, it can be judged whether one end of the wire package A meets the requirements, and according to the second feed size, it can be judged whether the other end of the wire package A meets the requirements. If the first feed size and / or the second feed size is smaller than the required size, the size of the wire package A is unqualified (for example, the outer diameter and height of the wire package A are unqualified); if the first feed size and / or the second feed size is greater than or equal to the required size, the size of the wire package A is qualified (for example, the outer diameter and height of the wire package A are qualified).

[0051] Normally, if the coil A is qualified, the upper detection component 4 and the lower detection component 7 can form contact with the stator core B. If the coil A is unqualified, the upper detection component 4 and the lower detection component 7 have a distance from the stator core B. During the detection process, if the coil A is unqualified, an alarm signal will be issued. For example, the upper detection component 4 and the lower detection component 7 are connected to a controller, and the output end of the controller is connected to an alarm. The controller can use a PLC, and the alarm can use an audible and visual alarm.

[0052] During the feeding process of the upper detection assembly 4, the power output by the upper driver 3 is transmitted sequentially through the upper connecting plate 20, the upper spring 23, the upper support plate 21, and the upper detection assembly 4. When the wire bundle A cannot be fed further, the upper connecting plate 20 compresses the upper spring 23, thereby reducing the pressure on the wire bundle A and preventing damage to one end of the wire bundle A. Similarly, the lower spring 53 prevents damage to the other end of the wire bundle A.

[0053] Finally, it should be noted that the above-described implementation methods are merely preferred embodiments of the present invention to illustrate the technical solution of the present invention, and are not intended to limit the present invention, let alone the scope of protection of the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solution from the scope of protection of the claims.

Claims

1. A motor stator coil size detection device, characterized in that: include: Guide shaft (1); An upper bracket (2), the upper bracket (2) and the guide shaft (1) are slidably matched; An upper driver (3) for driving the upper bracket (2) to move linearly along the guide shaft (1), the upper driver (3) being connected to the upper bracket (2); An upper detection component (4), the upper detection component (4) being connected to the upper bracket (2), and the upper detection component (4) forms a first feeding size when feeding the wire package under the action of the upper driver (3); A lower bracket (5), the lower bracket (5) is slidably matched with the guide shaft (1); A lower driver (6) for driving the lower bracket (5) to move linearly along the guide shaft (1), the lower driver (6) being connected to the lower bracket (5); A lower detection component (7), the lower detection component (7) being connected to the lower bracket (5), and the lower detection component (7) forms a second feeding size when feeding the wire package under the action of the lower driver (6); The first feeding size and / or the second feeding size are used to determine whether the wire package is qualified.

2. The motor stator coil size detection device according to claim 1, characterized in that: The upper bracket (2) comprises an upper connecting plate (20), an upper supporting plate (21), an upper guide shaft (22), and an upper spring (23); the upper connecting plate (20) is connected to the upper driver (3); the upper connecting plate (20) is slidably matched with the guide shaft (1); the upper guide shaft (22) passes through the upper connecting plate (20) and is slidably matched with the upper connecting plate (20); one end of the upper guide shaft (22) is fixed to the upper supporting plate (21); the upper spring (23) is sleeved on the upper guide shaft (22); one end of the upper spring (23) abuts against the upper connecting plate (20); and the other end of the upper spring (23) abuts against the upper supporting plate (21).

3. The motor stator coil size detection device according to claim 1, characterized in that: The upper detection assembly (4) comprises an upper outer detection sleeve (40) and an upper inner detection sleeve (41), one end of the upper inner detection sleeve (41) is located inside the upper outer detection sleeve (40) and is fixed to the upper outer detection sleeve (40), and a first annular groove (42) for accommodating a portion of a wire package is formed between the upper outer detection sleeve (40) and the upper inner detection sleeve (41).

4. The motor stator coil size detection device according to claim 1, characterized in that: The lower bracket (5) comprises a lower connecting plate (50), a lower supporting plate (51), a lower guide shaft (52), and a lower spring (53); the lower connecting plate (50) is connected to the lower driver (6); the lower connecting plate (50) is slidably matched with the guide shaft (1); the lower guide shaft (52) passes through the lower connecting plate (50) and is slidably matched with the lower connecting plate (50); one end of the lower guide shaft (52) is fixed to the lower supporting plate (51); the lower spring (53) is sleeved on the lower guide shaft (52); one end of the lower spring (53) abuts against the lower connecting plate (50); and the other end of the lower spring (53) abuts against the lower supporting plate (51).

5. The motor stator coil size detection device according to claim 1, characterized in that: The lower detection assembly (7) comprises a lower outer detection sleeve (70) and a lower inner detection sleeve (71); one end of the lower inner detection sleeve (71) is located inside the lower outer detection sleeve (70) and is fixed to the lower outer detection sleeve (70); and a second annular groove (72) for accommodating a portion of a wire package is formed between the lower outer detection sleeve (70) and the lower inner detection sleeve (71).

6. The motor stator coil size detection device according to any one of claims 1 to 5, characterized in that: It also comprises a first displacement detection component (8) for detecting the displacement of the upper bracket (2) and a second displacement detection component (9) for detecting the displacement of the lower bracket (5); the first displacement detection component (8) is connected to the upper bracket (2), and the second displacement detection component (9) is connected to the lower bracket (5).

7. The motor stator coil size detection device according to claim 6, characterized in that: The first displacement detection assembly (8) comprises a first mounting seat (80), a first linear displacement sensor (81), and a first spring (82). The main body of the first linear displacement sensor (81) is mounted on the first mounting seat (80), the connecting rod of the first linear displacement sensor (81) is fixed to the upper bracket (2), the first spring (82) is sleeved on the connecting rod of the first linear displacement sensor (81), one end of the first spring (82) abuts against the main body of the first linear displacement sensor (81), and the other end of the first spring (82) abuts against the upper bracket (2).

8. The motor stator coil size detection device according to claim 6, characterized in that: The second displacement detection assembly (9) comprises a second mounting seat (90), a second linear displacement sensor (91), and a second spring (92). The main body of the second linear displacement sensor (91) is mounted on the second mounting seat (90). The connecting rod of the second linear displacement sensor (91) is fixed to the lower bracket (5). The second spring (92) is sleeved on the connecting rod of the second linear displacement sensor (91). One end of the second spring (92) abuts against the main body of the second linear displacement sensor (91), and the other end of the second spring (92) abuts against the lower bracket (5).

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