Coreless motor coil resistance automatic detection device

Abstract

The utility model discloses a coreless motor coil resistance automatic detection device which is used for resistance detection of a motor coil, and the motor coil comprises a coil main body, a first wire end and a second wire end. The device comprises an insulation detection rod for sleeving a coil main body, an openable and closable clamp which is arranged at the outer side of the insulation detection rod and is used for clamping and fixing the coil main body, an electric detection rotating assembly which is fixedly connected to the lower part of the insulation detection rod and is used for driving the insulation detection rod to rotate, and an electric detection rotating assembly which is arranged at the outer side of a motor coil and is used for respectively connecting a first wire end and a second wire end, and the first detection probe and the second detection probe are connected with the second wire end. Compared with the prior art, the inner side of the motor coil is supported through the insulation detection rod, deformation of the motor coil can be avoided, the motor coil is automatically rotated to the position where the wire end is aligned with the detection probe through the electric detection rotating assembly, the wire end is pressed through the detection probe to measure the resistance value, and the detection efficiency and precision are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor coil detection, in particular to an automatic detection device for the resistance of a coreless cup motor coil. Background Art

[0002] Coreless motor coils are generally circular, consisting of multiple coil segments with multiple wire ends. Before installing the coreless motor coils, their resistance values ​​must be tested to determine the condition of each coil segment. This ensures the coils are of qualified quality and prevents performance defects after installation.

[0003] In the prior art, the method for testing the resistance of a coreless motor coil is as follows: a person holds the motor coil in one hand and holds the two test pens of a resistance testing device (such as a multimeter) in the other hand, respectively contacting the two wire ends to be tested of the coreless motor coil, and observing the resistance value on the resistance testing device to determine whether the coreless motor coil is qualified.

[0004] The shortcomings of the existing technology are that the manual detection method has low detection efficiency, and the handheld product testing operation is inconvenient and easily crushes the hollow cup motor coil.

[0005] Therefore, it is necessary to provide a new hollow cup motor coil resistance automatic detection device to solve the above technical problems. Summary of the Invention

[0006] (1) Technical issues to be resolved

[0007] Based on this, the utility model provides an automatic detection device for the resistance of hollow cup motor coils to solve the technical problems of low detection efficiency and easy crushing of hollow cup motor coils in the existing method of manual detection of hollow cup motor coils.

[0008] (2) Technical solution

[0009] To solve the above technical problems, the present invention proposes an automatic detection device for the resistance of a coreless motor coil, characterized in that the automatic detection device for the resistance of a coreless motor coil is used to detect the resistance of a motor coil, wherein the motor coil includes a coil body that is annular as a whole and a first wire end and a second wire end located at the same end of the coil body, and the first wire end and the second wire end are arranged at intervals; the automatic detection device for the resistance of a coreless motor coil includes: an insulation detection rod for inserting the coil body, an openable and closable clamp located outside the insulation detection rod and used to clamp and fix the coil body, an electric detection rotating assembly fixedly connected to the lower part of the insulation detection rod and used to drive the insulation detection rod to rotate, a first detection probe located outside the motor coil and used to connect to the first wire end, and a second detection probe located outside the motor coil and used to connect to the second wire end; the plane passing through the first wire end and the rotation axis of the coil body is P1, and the plane passing through the second wire end and the rotation axis of the coil body is P2; the angle between P1 and P2 is A; and the angle between the first detection probe and the second detection probe is also A.

[0010] (3) Beneficial effects

[0011] Compared with the existing technology, the utility model supports the inner side of the motor coil by an insulating detection rod, which can avoid deformation of the motor coil. The electric detection rotating assembly is used to automatically rotate the motor coil to a position where the wire end is aligned with the detection probe. The detection probe is used to press the wire end to measure the resistance value, thereby improving detection efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0013] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a schematic top view of the overall structure of the utility model;

[0015] Figure 3 It is a partial structural perspective diagram of the utility model;

[0016] Figure 4 This is a three-dimensional schematic diagram of the electric inspection rotating assembly in the present utility model;

[0017] Figure 5 This is a cross-sectional diagram of the electric inspection rotating assembly in the present invention;

[0018] Figure 6 This is a three-dimensional schematic diagram of the openable and closable clamp in the present invention;

[0019] Figure 7 This is a partial structural perspective diagram of the openable and closable clamp in the present invention;

[0020] Figure 8 This is a three-dimensional schematic diagram of the clamping jaw opening drive unit in the present invention;

[0021] Figure 9 This is a three-dimensional schematic diagram of the telescopic sliding assembly of the first electric inspection head in the present utility model;

[0022] Figure 10 This is a schematic diagram of the structure of a motor coil (3 wire ends) in the utility model;

[0023] Figure 11 This is a schematic diagram of the structure in which the detection probe is connected to the thread head in the present invention;

[0024] Figure 12 This is a schematic diagram of using the utility model to continuously measure the resistance value between different wire ends.

[0025] Description of reference numerals:

[0026] 100, motor coil; 00, coil body; 01, first thread end; 02, second thread end; 03, third thread end;

[0027] 1. Electrical inspection rotating assembly; 2. Openable and closable fixture; 3. Insulation inspection rod; 4. First inspection probe; 5. Second inspection probe; 6. Inspection platform mounting plate; 7. Telescopic sliding assembly for the first electrical inspection head; 8. Telescopic sliding assembly for the second electrical inspection head; 9. Support column; 10. Vision module; 11. Material rack; 12. Finished product tray; 13. Defective product collection box; 14. Gripper opening drive unit.

[0028] 011, electric inspection rotating motor; 012, rotating motor mounting plate; 013, rotating motor connecting column; 014, electric inspection rotating bearing seat; 015, electric inspection rotating sleeve; 016, coupling; 017, bearing;

[0029] 21. Electric inspection clamping platform; 22. Linear guide rail; 23. First clamping unit; 24. Second clamping unit; 211. Bushing through hole;

[0030] 31. Annular groove;

[0031] 41. Pressing plate; 42. Dot-shaped pressing groove;

[0032] 61. Angle adjustment mounting slot;

[0033] 0111, motor connection flange; 0112, motor output shaft;

[0034] 0151, detection rod receiving groove; 0152, side locking hole; 0153, clamping platform support ring;

[0035] 141. Telescopic cylinder; 142. Triangular plate;

[0036] 231, first slider; 232, first L-shaped pressure block; 233, first pressure claw; 234, first rotating wheel; 235, first spring limit plate; 236, first electric detection spring limit rod; 237, first compression spring;

[0037] 2331, first pressing groove;

[0038] 241, second slider; 242, second L-shaped pressure block; 243, second pressure claw; 244, second rotating wheel; 245, second spring limit plate; 246, second electric detection spring limit rod; 247, second compression spring;

[0039] 2431, second pressing groove;

[0040] 1421, first inclined surface; 1422, second inclined surface; 1423, hollow mounting hole;

[0041] 71. First cylinder mounting base; 72. First slide cylinder; 73. First mounting angle block; 74. First mounting sliding block;

[0042] 731, first horizontal mounting plate; 732, first vertical mounting plate;

[0043] 7321. First vertical adjustable mounting slot; 7322. First lateral locking hole. DETAILED DESCRIPTION

[0044] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without violating the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0045] The following is combined with Figure 1-12 The automatic detection device for the coil resistance of a coreless motor of the present invention is further described.

[0046] Please focus on Figure 1-3The utility model discloses an automatic detection device for the resistance of a coreless motor coil. The automatic detection device for the resistance of a coreless motor coil is used for detecting the resistance of a motor coil 100. The motor coil 100 includes a coil body 00 that is annular as a whole and a first wire end 01 and a second wire end 02 located at the same end of the coil body 00. The first wire end 01 and the second wire end 02 are arranged at intervals. The automatic detection device for the resistance of a coreless motor coil includes: an insulation detection rod 3 for inserting the coil body 00, an openable detection rod located outside the insulation detection rod 3 and for clamping and fixing the coil body 00. A clamp 2, an electric detection rotating assembly 1 fixedly connected to the lower part of the insulation detection rod 3 and used to drive the insulation detection rod 3 to rotate, a first detection probe 4 located outside the motor coil 100 and used to connect to the first wire end 01, and a second detection probe 5 located outside the motor coil 100 and used to connect to the second wire end 02; the plane passing through the first wire end 01 and the rotation axis of the coil body 00 is P1, and the plane passing through the second wire end 02 and the rotation axis of the coil body 00 is P2; the angle between P1 and P2 is A; the angle between the first detection probe 4 and the second detection probe 5 is also A.

[0047] In this embodiment, the insulation test rod 3 is made of insulating material and is used to support the motor coil 100. The outer diameter of the portion of the insulation test rod 3 that contacts the coil body 00 (the lower section of the insulation test rod 3) matches the inner diameter of the coil body 00. When the retractable clamp 2 is closed, the insulation test rod 3 provides a contact base for the retractable clamp 2, preventing the retractable clamp 2 from crushing the coil body 00. Furthermore, the upper section of the insulation test rod 3 provides a contact base for the test probe, ensuring that when the test probe is extended and presses against the wire end, the test probe and the wire end are effectively electrically connected, facilitating accurate resistance measurement.

[0048] The retractable clamp 2 can be opened and closed. When closed, it acts on the two opposing outer sides of the coil body 00, clamping and securing the coil body 00 to the insulation test rod 3, ensuring synchronous rotation of the coil body 00 and the insulation test rod 3. When the retractable clamp 2 is opened, the motor coil 100 can be freely removed. The retractable clamp 2 can have various structures, such as an existing two-finger pneumatic clamp or a forward and reverse screw-aligned clamping structure that uses a motor to drive the forward and reverse screws to rotate to synchronize the opening and closing of the left and right jaws.

[0049] The electrical inspection rotating assembly 1 is used to provide rotational power to adjust the angle of the motor coil 100 mounted on the insulation test rod 3. The electrical inspection rotating assembly 1 can have various structures, such as a stepper motor or a combination of a stepper motor and a reducer. When the electrical inspection rotating assembly 1 rotates, the insulation test rod 3, carrying the motor coil 100, rotates as a whole, adjusting the position of the wire ends, ultimately aligning them with the test probes. First and second test probes 4, 5, are connected to a resistance testing device, and both are retractable. When the motor coil 100 rotates to the proper position, the first wire end 01 aligns with the first test probe 4, and the second wire end 02 aligns with the second test probe 5. When the first test probe 4 is extended, it can precisely press against the first wire end 01, and when the second test probe 5 is extended, it can precisely press against the second wire end 02. Assuming that the first and second wire ends 01 and 02 are two ends of the same coil M, the resistance testing device can measure the resistance of the coil M in this state. If the resistance is within the designed range, the coil M is considered qualified. It should be noted that the first wire end 01 and the second wire end 02 may also be wire ends of different sections of the coil. Comparing the measured resistance value with the designed resistance value may also be used as a basis for determining whether the motor coil 100 is qualified.

[0050] There are many structures for realizing the extension and retraction of the first detection probe 4 and the second detection probe 5. For example, the detection probes can be installed on the telescopic cylinder 141, and the telescopic cylinder 141 provides the telescopic power, or the detection probes can be used as the top rod of the cam, and the telescopic cylinder 141 provides the telescopic power.

[0051] The following describes in detail the use of the coreless cup motor coil resistance automatic detection device of this embodiment.

[0052] First, the retractable fixture 2 is opened. Then, manually or by a robotic gripper, the motor coil 100 is placed on the insulation test rod 3, ensuring the wire ends face upward. The retractable fixture 2 is then closed, clamping the motor coil 100 onto the insulation test rod 3. The electrical inspection rotating assembly 1 rotates the insulation test rod 3, the retractable fixture 2, and the motor coil 100 as a whole, stopping when the wire ends face the inspection probe. The inspection probe extends and presses against the wire ends, connecting the resistance inspection channel. The resistance inspection device connected to the inspection probe can measure and display the resistance value, completing the resistance inspection of the motor coil 100.

[0053] Compared to existing technologies, the present invention's automatic coreless motor coil resistance detection device uses an insulating detection rod 3 to support the inner side of the motor coil 100, preventing deformation of the motor coil 100 during detection. The electrical detection rotating assembly 1 automatically rotates the motor coil 100 until the coil end is aligned with the detection probe, and the detection probe presses the coil end to measure the resistance value. This eliminates the need for manual handheld detection of coil resistance, significantly improving detection efficiency and accuracy.

[0054] According to the specific implementation of the present utility model, the automatic detection device for the resistance of the hollow cup motor coil also includes: a detection platform mounting plate 6, a first electric inspection head telescopic sliding assembly 7 and a second electric inspection head telescopic sliding assembly 8; the insulation detection rod 3 is located above the detection platform mounting plate 6; the electric inspection rotating assembly 1 is installed on the detection platform mounting plate 6, and the electric inspection rotating assembly 1 passes through the detection platform mounting plate 6 in the up and down directions, and the insulation detection rod 3 and the openable and closable clamp 2 are respectively installed on the electric inspection rotating assembly 1; the lower parts of the first electric inspection head telescopic sliding assembly 7 and the second electric inspection head telescopic sliding assembly 8 are respectively installed on the detection platform mounting plate 6; the first detection probe 4 and the second detection probe 5 are respectively loaded on the upper parts of the first electric inspection head telescopic sliding assembly 7 and the second electric inspection head telescopic sliding assembly 8.

[0055] In this embodiment, the components are centrally mounted on the detection platform mounting plate 6, so that the present invention forms an integrated and stable structure.

[0056] According to the specific implementation of the present utility model, the detection platform mounting plate 6 is a rectangular plate as a whole, and the two diagonal lower parts of the detection platform mounting plate 6 are respectively fixedly connected to a support column 9. The detection platform mounting plate 6 and the support column 9 together constitute a device frame. A visual module 10 is provided on one side of the device frame, and a material rack 11 is provided on the other side of the device rack. A finished product material tray 12 and a defective product collection box 13 are provided side by side on the material rack 11.

[0057] In this embodiment, the visual module 10 is an existing purchased part. The visual module 10 is composed of a camera, a lens, a light source, an adjustment structure, etc., and is used for taking pictures and positioning. The visual module 10 is used to obtain the position information of the thread end and the detection probe, and transmit the position information to the electric inspection rotating component 1. The electric inspection rotating component 1 determines the rotation angle according to the position information to ensure that the thread end is aligned with the detection probe after rotating the angle. The finished product tray 12 is used to store the motor coils 100 to be tested. The defective products after being tested by the hollow cup motor coil resistance automatic detection device of the utility model are placed in the defective product collection box 13. The qualified motor coils 100 are transferred to the next process manually or by a robot.

[0058] Please focus on Figure 4-5According to the specific embodiment of the present utility model, the electric inspection rotating assembly 1 includes: an electric inspection rotating motor 011, a rotating motor mounting plate 012, a rotating motor connecting column 013, an electric inspection rotating bearing seat 014 and an electric inspection rotating sleeve 015; the electric inspection rotating bearing seat 014 is fixedly mounted on the detection platform mounting plate 6, the upper part of the electric inspection rotating sleeve 015 is fixedly connected to the insulation detection rod 3, the lower part of the electric inspection rotating sleeve 015 passes through the electric inspection rotating bearing seat 014, and the electric inspection rotating bearing seat 014 is rotatably connected to the electric inspection rotating sleeve 015, the rotating motor mounting plate 012 is located below the detection platform mounting plate 6, the two ends of the rotating motor connecting column 013 are respectively fixedly connected to the detection platform mounting plate 6 and the rotating motor mounting plate 012, the electric inspection rotating motor 011 includes a motor connecting flange 0111 and a motor output shaft 0112, the motor connecting flange 0111 is mounted on the lower part of the rotating motor mounting plate 012, and the motor output shaft 0112 is fixedly connected to the lower part of the electric inspection rotating sleeve 015.

[0059] This embodiment provides a specific structure of an electric detection rotating assembly 1 .

[0060] The electric inspection rotary motor 011 is used to provide rotational power. It is installed upside down, below the inspection platform mounting plate 6. The rotary motor mounting plate 012 is used to mount the electric inspection rotary motor 011. The rotary motor connecting column 013 is used to securely connect the rotary motor mounting plate 012. The electric inspection rotary bearing seat 014 and the electric inspection rotary shaft sleeve 015 cooperate to form a rotating structure. The electric inspection rotary bearing seat 014 is mounted on the inspection platform mounting plate 6 to ensure stable support. It is used to smoothly transmit the rotational power of the electric inspection rotary motor 011 to the electric inspection rotary shaft sleeve 015, ultimately driving the insulation inspection rod 3 to rotate and adjust the angle of the motor coil 100 mounted on the insulation inspection rod 3.

[0061] According to a specific embodiment of the present utility model, the rotating motor mounting plate 012 is rectangular, the rotating motor connecting column 013 is cylindrical as a whole, the top of the electric inspection rotating sleeve 015 is provided with a recessed detection rod receiving groove 0151, and the side of the electric inspection rotating sleeve 015 is provided with a side locking hole 0152 connected to the detection rod receiving groove 0151. The lower part of the insulation detection rod 3 is inserted into the detection rod receiving groove 0151, and the side locking hole 0152 is provided with a locking screw (not shown in the figure) for abutting and fixing the insulation detection rod 3. The motor output shaft 0112 is fixedly connected to the electric inspection rotating sleeve 015 via the coupling 016, and a bearing 017 is provided between the electric inspection rotating bearing seat 014 and the electric inspection rotating sleeve 015.

[0062] In this embodiment, the rotating motor mounting plate 012 and the rotating motor connecting column 013 together form a frame structure to ensure that the electric inspection rotating motor 011 is firmly installed.

[0063] The structure of the test rod receiving slot 0151 and the side locking hole 0152 facilitates quick installation and replacement of the insulation test rod 3. During installation, the lower portion of the insulation test rod 3 is inserted into the test rod receiving slot 0151 and the locking screw is tightened to lock the insulation test rod 3. The reverse operation can be quickly removed from the insulation test rod 3. Bearing 017 is used to improve the smooth rotation between the electric test rotating bearing seat 014 and the electric test rotating shaft sleeve 015.

[0064] According to the specific embodiment of the present invention, the openable and closable clamp 2 includes: an electric inspection clamping platform 21, a linear slide 22, a first clamping unit 23 and a second clamping unit 24; the electric inspection clamping platform 21 is plate-shaped as a whole, and a shaft sleeve through-hole 211 is provided on the electric inspection clamping platform 21, and a protruding clamping platform support ring 0153 is provided on the outer side of the electric inspection rotating shaft sleeve 015, the upper part of the electric inspection rotating shaft sleeve 015 passes through the shaft sleeve through-hole 211, and the lower part of the electric inspection clamping platform 21 is fixedly supported on the clamping platform support ring 0153; the linear slide 22 is fixed to the electric inspection One side of the clamping platform 21; the first clamping unit 23 and the second clamping unit 24 are symmetrical structures, the lower parts of the first clamping unit 23 and the second clamping unit 24 are respectively slidably connected to the linear slide rail 22, and the upper parts of the first clamping unit 23 and the second clamping unit 24 are respectively arranged on two opposite sides of the insulation detection rod 3; the openable and closable clamp 2 is a normally closed structure, and the hollow cup motor coil resistance automatic detection device also includes a jaw opening drive unit 14 for driving the first clamping unit 23 and the second clamping unit 24 to open; the jaw opening drive unit 14 is installed on the detection platform mounting plate 6.

[0065] In this embodiment, the electric inspection clamping platform 21 is fixedly mounted on the clamping platform support ring 0153 of the electric inspection rotating sleeve 015 , so that the entire openable and closable clamp 2 can rotate synchronously with the electric inspection rotating sleeve 015 .

[0066] The retractable clamp 2 is a normally closed structure, achieved by utilizing a compression spring or airbag. This spring or airbag compresses the jaws of the first and second clamping units 23 and 24, creating a normally closed structure. The jaw opening drive unit 14 is used to open the first and second clamping units 23 and 24. This can be a pneumatic or hydraulic cylinder that drives a triangular wedge to extend and retract. When the triangular wedge extends, its two top slopes simultaneously compress the first and second clamping units 23 and 24, forcing them to open. Both pneumatic and hydraulic cylinders require connection to piping (either air or oil pipes).

[0067] This embodiment provides a specific structure for an openable and closable clamp 2. The main innovation of this embodiment is that the openable and closable clamp 2 is configured as a normally closed structure, and the openable and closable clamp 2 and the jaw opening drive unit 14 are mounted on different components. With this structure, the jaw opening drive unit 14 is fixedly mounted on the inspection platform mounting plate 6. The pipeline of the air cylinder or oil cylinder is also fixedly mounted and does not rotate with the openable and closable clamp 2. The openable and closable clamp 2 can rotate freely along with the electric inspection rotating sleeve 015. Furthermore, since the openable and closable clamp 2 is a normally closed structure, when the openable and closable clamp 2 rotates along with the electric inspection rotating sleeve 015, it can clamp the motor coil 100, ensuring that the motor coil 100 and the electric inspection rotating sleeve 015 rotate synchronously, meeting the usage requirements. When the openable and closable clamp 2 needs to be opened, the openable and closable clamp 2 is rotated above the jaw opening drive unit 14, and the jaw opening drive unit 14 is activated, driving the openable and closable clamp 2 to open.

[0068] Please focus on Figure 6-8According to a specific embodiment of the present invention, the clamping jaw opening driving unit 14 includes a telescopic cylinder 141 and a triangular plate 142 driven by the telescopic cylinder 141; the first clamping unit 23 includes: a first slider 231, a first L-shaped pressure block 232, a first pressure claw 233, a first rotating wheel 234, a first spring limiting plate 235, a first electric detection spring limiting rod 236 and a first compression spring 237; the first slider 231 is slidably connected to the linear slide rail 22, one end of the first L-shaped pressure block 232 is fixedly mounted on the first slider 231, and the other end of the first L-shaped pressure block 232 is fixedly mounted with a first pressure claw 233, and one side of the first pressure claw 233 is provided with a recess The first pressing groove 2331 is arranged opposite to the insulation detection rod 3, the first spring limiting plate 235 is fixed to one side of the electric inspection clamping platform 21, the first electric inspection spring limiting rod 236 passes through the first L-shaped pressure block 232, and the first electric inspection spring limiting rod 236 is slidably connected to the first L-shaped pressure block 232, the first compression spring 237 is sleeved on the first electric inspection spring limiting rod 236, and the first compression spring 237 is located between the first spring limiting plate 235 and the first L-shaped pressure block 232, the first rotating wheel 234 is installed on the first L-shaped pressure block 232, and the first rotating wheel 234 is located on one side of the electric inspection clamping platform 21; the second clamping unit 24 includes The second slider 241, the second L-shaped pressure block 242, the second pressure claw 243, the second rotating wheel 244, the second spring limiting plate 245, the second electric inspection spring limiting rod 246 and the second compression spring 247 are provided; the second slider 241 is slidably connected to the linear slide rail 22, one end of the second L-shaped pressure block 242 is fixedly mounted on the second slider 241, the other end of the second L-shaped pressure block 242 is fixedly mounted with the second pressure claw 243, one side of the second pressure claw 243 is provided with a concave second pressure groove 2431, the second pressure groove 2431 is arranged opposite to the insulation detection rod 3, the second spring limiting plate 245 is fixed to one side of the electric inspection clamping platform 21, the second electric inspection spring limiting rod 246 passes through the second L-shaped pressure block 242, and the second electric inspection spring limit rod 246 is slidably connected to the second L-shaped pressure block 242, the second compression spring 247 is sleeved on the second electric inspection spring limit rod 246, and the second compression spring 247 is located between the second spring limit plate 245 and the second L-shaped pressure block 242, the second rotating wheel 244 is installed on the second L-shaped pressure block 242, and the second rotating wheel 244 is located on one side of the electric inspection clamping platform 21; one side of the upper part of the triangular plate 142 is provided with a first inclined surface 1421 for acting on the first rotating wheel 234, and the other side of the upper part of the triangular plate 142 is provided with a second inclined surface 1422 for acting on the second rotating wheel 244.

[0069] More specifically, the first rotating wheel 234 and the second rotating wheel 244 are both bearings 017. The bearings 017 can be directly purchased from outside, with low cost and good rotation flexibility.

[0070] In this embodiment, the telescopic cylinder 141 is used to provide telescopic power, and the first inclined surface 1421 and the second inclined surface 1422 of the triangular plate 142 are used to directly act on the first rotating wheel 234 and the second rotating wheel 244 to open the clamping jaws.

[0071] The first slider 231 is used to form a sliding connection structure with the linear slide 22, ensuring that the first pressure claw 233 moves in the direction of the linear slide 22. The first L-shaped pressure block 232 is generally L-shaped and is used to connect the first slider 231 located on the side of the electrical inspection clamping platform 21 and the first pressure claw 233 located on the top of the electrical inspection clamping platform 21. The first rotating wheel 234 rotates under the pressure of the first inclined surface 1421 and drives the first pressure claw 233 to open. The first pressure claw 233 directly acts on the motor coil 100. Under normal conditions, the first compression spring 237 compresses the first L-shaped pressure block 232, allowing the first pressure claw 233 to act on the motor coil 100. The shape of the first pressure groove 2331 matches the outer shape of the motor coil 100 to ensure a sufficient clamping contact surface. Since the second clamping unit 24 and the first clamping unit 23 are symmetrical structures, the structure and function of the second clamping unit 24 refer to the above description of the first clamping unit 23.

[0072] According to a specific embodiment of the present invention, a hollow mounting hole 1423 is provided on the triangular plate 142 and passes through the triangular plate 142 . The outer periphery of the triangular plate 142 is in the shape of a triangle as a whole, and the hollow mounting hole 1423 is in the shape of a triangle as a whole.

[0073] In this embodiment, the hollow mounting hole 1423 has two functions. On the one hand, it is convenient for screws to be installed to achieve the connection between the triangular plate 142 and the telescopic cylinder 141. On the other hand, the hollow structure is formed to help reduce weight.

[0074] According to the specific implementation of the present utility model, the detection platform mounting plate 6 is also provided with an arc-shaped angle adjustment mounting groove 61 running through it, and the center of the angle adjustment mounting groove 61 passes through the rotation axis of the electric inspection rotating assembly 1; the bottom of the first electric inspection head telescopic sliding assembly 7 and the second electric inspection head telescopic sliding assembly 8 are respectively installed on the upper part of the angle adjustment mounting groove 61 through threaded connectors.

[0075] In this embodiment, the angle adjustment mounting groove 61 is used as a screw mounting hole for installing the first electric inspection head telescopic sliding assembly 7 or the second electric inspection head telescopic sliding assembly 8. After setting the arc-shaped angle adjustment mounting groove 61, the first electric inspection head telescopic sliding assembly 7 and the second electric inspection head telescopic sliding assembly 8 can freely select the installation position along the extension direction of the angle adjustment mounting groove 61, ensuring that the angle between the first electric inspection head telescopic sliding assembly 7 and the second electric inspection head telescopic sliding assembly 8 matches the wire end position of different models of motor coils 100.

[0076] Please focus on Figure 9According to the specific embodiment of the present invention, the first electric inspection head telescopic sliding assembly 7 includes: a first cylinder mounting seat 71, a first slide cylinder 72, a first mounting angle block 73 and a first mounting sliding block 74; the first mounting angle block 73 includes a first horizontal mounting plate 731 and a first vertical mounting plate 732 fixedly connected at the ends, the first horizontal mounting plate 731 is installed on the top of the first slide cylinder 72, the first vertical mounting plate 732 is provided with a recessed first vertical adjustable mounting groove 7321 on the side close to the insulation detection rod 3, the side of the first vertical mounting plate 732 is provided with a first lateral locking hole 7322 connected to the first vertical adjustable mounting groove 7321, the number of the first lateral locking holes 7322 is multiple, and the multiple first lateral locking holes 7322 are multiple. The holes 7322 are arranged at intervals along the extension direction of the first vertical adjustable mounting slot 7321; one side of the first mounting slide block 74 is inserted into the first vertical adjustable mounting slot 7321, and at least one first lateral locking hole 7322 is provided with a first lateral locking screw for locking and fixing the first mounting slide block 74; the other side of the first mounting slide block 74 is provided with a recessed stylus fixing hole, and one end of the first detection probe 4 is inserted and fixed in the stylus fixing hole; the bottom of the slide cylinder is connected to the detection platform mounting plate 6 through the first cylinder mounting seat 71; the bottom of the first cylinder mounting seat 71 is installed on the upper part of the angle adjustment mounting slot 61 through a threaded connection; the second electrical inspection head telescopic sliding assembly 8 and the first electrical inspection head telescopic sliding assembly 7 have the same structure.

[0077] More specifically, the second electrical inspection head telescopic sliding assembly 8 includes: a second cylinder mounting seat, a second slide cylinder, a second mounting angle block and a second mounting sliding block; the second mounting angle block includes a second horizontal mounting plate and a second vertical straight mounting plate fixedly connected at the ends, the second horizontal mounting plate is installed on the top of the second slide cylinder, the second vertical mounting plate is provided with a recessed second vertical adjustable mounting slot on one side close to the insulation detection rod 3, the side of the second vertical straight mounting plate is provided with a second lateral locking hole connected to the second vertical adjustable mounting slot, the number of the second lateral locking holes is multiple, and the multiple second lateral locking holes are spaced apart along the extension direction of the second vertical adjustable mounting slot; one side of the second mounting sliding block is inserted into the second vertical adjustable mounting slot, and at least one second lateral locking hole is provided with a second lateral locking screw for locking and fixing the second mounting sliding block; the other side of the second mounting sliding block is provided with a recessed probe fixing hole, and one end of the second detection probe 5 is inserted and fixed in the probe fixing hole; the bottom of the second cylinder mounting seat is installed on the upper part of the angle adjustment mounting slot 61 through a threaded connection.

[0078] During use, the first slide cylinder 72 is extended and retracted to control the extension and retraction of the first detection probe 4. The second slide cylinder is extended and retracted to control the extension and retraction of the second detection probe 5. The position of the first mounting slide block 74 within the first vertically adjustable mounting slot 7321 is adjusted as needed, and the first mounting slide block 74 is locked using the appropriate first lateral locking hole 7322, ultimately achieving adjustment of the height of the first detection probe 4. The structure and function of the second electrical inspection head telescopic slide assembly 8 are described above for the first electrical inspection head telescopic slide assembly 7.

[0079] According to the specific implementation of the present utility model, the first detection probe 4 and the second detection probe 5 have the same structure; the first detection probe 4 is provided with a disc-shaped pressure plate 41 at one end close to the insulation detection rod 3, and the pressure plate 41 is provided with evenly distributed concave point-shaped pressure grooves 42 on the end face facing the insulation detection rod 3; the outer side of the insulation detection rod 3 is provided with a concave annular pressure groove 31 on the periphery of the pressure plate 41.

[0080] In this embodiment, the dot-shaped pressure grooves 42 enable the pressure plate 41 to firmly hold the thread end during resistance testing. The annular pressure groove 31, positioned directly opposite the pressure plate 41, ensures that after the test probe (first test probe 4 or second test probe 5) is extended, it presses the thread end precisely at the annular pressure groove 31, further ensuring a secure hold on the thread end. The annular pressure groove 31 also serves as a guide and position limit for the pressure plate 41.

[0081] According to a specific embodiment of the present invention, a third wire end 03 is further provided at one end of the coil body 00 , and the first wire end 01 , the second wire end 02 and the third wire end 03 are uniformly distributed along the center of the coil body 00 in sequence.

[0082] Adjust the angle between the first detection probe 4 and the second detection probe 5 as needed. In most cases, the angle between the first detection probe 4 and the second detection probe 5 corresponds to the angle between two adjacent thread ends. Figure 10-12 As shown, each 120° rotation of the insulation test rod 3 of the motor coil 100 measures the resistance between two different wire ends. It should be noted that the number of wire ends is n, and these n wire ends are evenly distributed along the center of the coil body 00; n is a natural number ≥ 2. In specific implementations, the number of wire ends is determined based on the structure of the motor coil to be produced.

[0083] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, it can mean a fixed connection, a detachable connection, or an integral connection; it can mean a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium; it can mean internal communication between two elements, or a "transmission connection," i.e., a power connection through various appropriate means such as a belt drive, a gear drive, or a sprocket drive. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

Claims

1. An automatic detection device for coil resistance of a coreless motor, characterized in that: The hollow cup motor coil resistance automatic detection device is used for detecting the resistance of the motor coil. The motor coil includes a coil body that is annular as a whole and a first wire end and a second wire end located at the same end of the coil body, and the first wire end and the second wire end are arranged at intervals; the hollow cup motor coil resistance automatic detection device includes: an insulation detection rod for inserting the coil body, an openable and closable clamp located outside the insulation detection rod and used to clamp and fix the coil body, an electric detection rotating assembly fixedly connected to the lower part of the insulation detection rod and used to drive the insulation detection rod to rotate, a first detection probe located outside the motor coil and used to connect with the first wire end, and a second detection probe located outside the motor coil and used to connect with the second wire end; the plane passing through the first wire end and the rotation axis of the coil body is P1, and the plane passing through the second wire end and the rotation axis of the coil body is P2; the angle between P1 and P2 is A; and the angle between the first detection probe and the second detection probe is also A.

2. The automatic detection device for coreless motor coil resistance according to claim 1, characterized in that: The automatic detection device for the resistance of the hollow cup motor coil also includes: a detection platform mounting plate, a first electric inspection head telescopic sliding assembly and a second electric inspection head telescopic sliding assembly; the insulation detection rod is located above the detection platform mounting plate; the electric inspection rotating assembly is installed on the detection platform mounting plate, and the electric inspection rotating assembly passes through the detection platform mounting plate in the up and down directions, and the insulation detection rod and the openable and closable clamp are respectively installed on the electric inspection rotating assembly; the lower parts of the first electric inspection head telescopic sliding assembly and the second electric inspection head telescopic sliding assembly are respectively installed on the detection platform mounting plate; the first detection probe and the second detection probe are respectively loaded on the upper parts of the first electric inspection head telescopic sliding assembly and the second electric inspection head telescopic sliding assembly.

3. The automatic detection device for coreless motor coil resistance according to claim 2, characterized in that: The detection platform mounting plate is a rectangular plate as a whole, and the two diagonal lower parts of the detection platform mounting plate are respectively fixedly connected to a support column. The detection platform mounting plate and the support column together constitute a device frame. A visual module is provided on one side of the device frame, and a material rack is provided on the other side of the device rack. Finished product material trays and defective product collection boxes are provided side by side on the material rack.

4. The automatic detection device for coreless motor coil resistance according to claim 2 or 3, characterized in that: The electric inspection rotating assembly includes: an electric inspection rotating motor, a rotating motor mounting plate, a rotating motor connecting column, an electric inspection rotating bearing seat and an electric inspection rotating sleeve; the electric inspection rotating bearing seat is fixedly mounted on the detection platform mounting plate, the upper part of the electric inspection rotating sleeve is fixedly connected to the insulating detection rod, the lower part of the electric inspection rotating sleeve passes through the electric inspection rotating bearing seat, and the electric inspection rotating bearing seat is rotatably connected to the electric inspection rotating sleeve, the rotating motor mounting plate is located below the detection platform mounting plate, the two ends of the rotating motor connecting column are respectively fixedly connected to the detection platform mounting plate and the rotating motor mounting plate, the electric inspection rotating motor includes a motor connecting flange and a motor output shaft, the motor connecting flange is mounted on the lower part of the rotating motor mounting plate, and the motor output shaft is fixedly connected to the lower part of the electric inspection rotating sleeve.

5. The automatic detection device for coreless motor coil resistance according to claim 4, characterized in that: The rotating motor mounting plate is rectangular, the rotating motor connecting column is cylindrical as a whole, the top of the electric inspection rotating sleeve is provided with a recessed detection rod receiving groove, the side of the electric inspection rotating sleeve is provided with a side locking hole connected to the detection rod receiving groove, the lower part of the insulation detection rod is inserted into the detection rod receiving groove, and the side locking hole is provided with a locking screw for abutting and fixing the insulation detection rod, the motor output shaft is fixedly connected to the electric inspection rotating sleeve via a coupling, and a bearing is provided between the electric inspection rotating bearing seat and the electric inspection rotating sleeve.

6. The automatic detection device for coreless motor coil resistance according to claim 5, characterized in that: The openable and closable clamp comprises: an electric inspection clamping platform, a linear slide, a first clamping unit and a second clamping unit; the electric inspection clamping platform is in the shape of a plate as a whole, and a shaft sleeve through-hole is provided on the electric inspection clamping platform, a raised clamping platform support ring is provided on the outer side of the electric inspection rotating shaft sleeve, the upper part of the electric inspection rotating shaft sleeve passes through the shaft sleeve through-hole, and the lower part of the electric inspection clamping platform is fixedly supported on the clamping platform support ring; the linear slide is fixed to one side of the electric inspection clamping platform; the first clamping unit and the second clamping unit are symmetrical structures to each other, the lower parts of the first clamping unit and the second clamping unit are respectively slidably connected to the linear slide, and the upper parts of the first clamping unit and the second clamping unit are respectively arranged on opposite sides of the insulation detection rod; the openable and closable clamp is a normally closed structure, and the hollow cup motor coil resistance automatic detection device also includes a clamping jaw opening drive unit for driving the first clamping unit and the second clamping unit to open; the clamping jaw opening drive unit is installed on the detection platform mounting plate.

7. The automatic detection device for coil resistance of a coreless motor according to claim 6, characterized in that: The clamping jaw opening drive unit includes a telescopic cylinder and a triangular plate driven by the telescopic cylinder; the first clamping unit includes: a first slider, a first L-shaped pressure block, a first pressure claw, a first rotating wheel, a first spring limiting plate, a first electric inspection spring limiting rod and a first compression spring; the first slider is slidably connected to the linear slide rail, one end of the first L-shaped pressure block is fixedly mounted on the first slider, the other end of the first L-shaped pressure block is fixedly mounted with the first pressure claw, one side of the first pressure claw is provided with a concave first pressure groove, the first pressure groove is arranged opposite to the insulation detection rod, the first spring limiting plate is fixed to one side of the electric inspection clamping platform, the first electric inspection spring limiting rod passes through the first L-shaped pressure block, and the first electric inspection spring limiting rod is slidably connected to the first L-shaped pressure block, the first compression spring is sleeved on the first electric inspection spring limiting rod, and the first compression spring is located between the first spring limiting plate and the first L-shaped pressure block, the first rotating wheel is mounted on the first L-shaped pressure block, and the first rotating wheel is located on one side of the electric inspection clamping platform; the second clamping unit includes: a second slider The second L-shaped pressure block is fixed on the second slider, and the second pressure claw is fixed on the other end of the second L-shaped pressure block. A recessed second pressure groove is provided on one side of the second pressure claw, and the second pressure groove is arranged opposite to the insulation detection rod. The second spring limiting plate is fixed on one side of the electric inspection clamping platform, the second electric inspection spring limiting rod passes through the second L-shaped pressure block, and the second electric inspection spring limiting rod is slidably connected to the second L-shaped pressure block. The second compression spring is sleeved on the second electric inspection spring limiting rod, and the second compression spring is located between the second spring limiting plate and the second L-shaped pressure block. The second rotating wheel is installed on the second L-shaped pressure block, and the second rotating wheel is located on one side of the electric inspection clamping platform; one side of the upper part of the triangular plate is provided with a first inclined surface for acting on the first rotating wheel, and the other side of the upper part of the triangular plate is provided with a second inclined surface for acting on the second rotating wheel.

8. The automatic detection device for coil resistance of a coreless motor according to claim 7, characterized in that: The triangular plate is provided with a hollow mounting hole passing through it, the outer periphery of the triangular plate is a triangle as a whole, and the hollow mounting hole is a triangle as a whole; the detection platform mounting plate is also provided with an arc-shaped angle adjustment mounting groove passing through it, and the center of the angle adjustment mounting groove passes through the rotation axis of the electric inspection rotating assembly; the bottoms of the first electric inspection head telescopic sliding assembly and the second electric inspection head telescopic sliding assembly are respectively installed on the upper part of the angle adjustment mounting groove through threaded connectors.

9. The automatic detection device for coreless motor coil resistance according to claim 8, characterized in that: The first electric inspection head telescopic sliding assembly includes: a first cylinder mounting seat, a first slide cylinder, a first mounting angle block and a first mounting sliding block; the first mounting angle block includes a first horizontal mounting plate and a first vertical mounting plate fixedly connected at the ends, the first horizontal mounting plate is installed on the top of the first slide cylinder, the first vertical mounting plate is provided with a recessed first vertical adjustable mounting groove on the side close to the insulation detection rod, the side of the first vertical mounting plate is provided with a first lateral locking hole connected to the first vertical adjustable mounting groove, the number of the first lateral locking holes is multiple, and the multiple first lateral locking holes are along the extension direction of the first vertical adjustable mounting groove. The cam is provided with a first locking screw for locking the first mounting slide block; one side of the first mounting slide block is inserted into the first vertically adjustable mounting groove, and at least one of the first lateral locking holes is provided with a first lateral locking screw for locking and fixing the first mounting slide block; the other side of the first mounting slide block is provided with a recessed stylus fixing hole, and one end of the first detection probe is inserted into and fixed in the stylus fixing hole; the bottom of the slide cylinder is connected to the detection platform mounting plate via the first cylinder mounting seat; the bottom of the first cylinder mounting seat is installed on the upper part of the angle adjustment mounting groove by a threaded connection; the structure of the second electric inspection head telescopic sliding assembly is the same as that of the first electric inspection head telescopic sliding assembly.

10. The automatic detection device for coil resistance of a coreless motor according to claim 9, characterized in that: The first detection probe and the second detection probe have the same structure; the first detection probe is provided with a disc-shaped pressure plate at one end close to the insulation detection rod, and the end surface of the pressure plate facing the insulation detection rod is provided with evenly distributed concave point-shaped pressure grooves; the outer side of the insulation detection rod is provided with a concave annular pressure groove facing the periphery of the pressure plate; a third wire end is also provided at one end of the coil body, and the first wire end, the second wire end and the third wire end are evenly distributed along the center of the coil body in sequence.

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