NTC (Negative Temperature Coefficient) welding and testing equipment

Abstract

The invention relates to NTC welding and testing equipment which comprises a base, a conveying mechanism arranged on the base, a welding mechanism arranged on the base, a feeding and discharging conveying mechanism arranged on the base, a first feeding and discharging mechanism arranged on a semi-finished motor on the welding mechanism, and a testing mechanism used for conducting resistance testing on the NTC welded on the semi-finished motor. The testing mechanism is provided with a driving mechanism for driving the testing mechanism to test NTC at different positions, and the base is provided with a feeding and discharging conveying mechanism and a second feeding and discharging mechanism of a semi-finished motor on the testing mechanism. After the equipment is set and debugged, the NTC on the semi-finished motor is automatically welded and tested, the production efficiency is improved, the labor cost is reduced, and the NTC on the two semi-finished motors is tested by driving the testing mechanism to move through the driving mechanism.

Description

Technical Field

[0001] The invention relates to the field of NTC welding and testing, and more particularly to a NTC welding and testing device. Background Art

[0002] With the rapid development of economy and technology, the application of NTC thermistors is very standardized. With the advent of Industry 4.0 and the era of big data, the application field of NTC thermistors is becoming wider and wider. Some fan motors need to be installed with NTC. NTC is installed on the fan motor by welding. In the production process, after NTC is welded on the semi-finished motor of the fan, it is necessary to test whether the NTC is welded qualified to prevent defective products from affecting subsequent production.

[0003] The existing welding equipment and the equipment for detecting NTC on semi-finished motors are mostly two independent devices, not integrated into one device. Manual operation is required to complete the welding and testing of NTC on semi-finished motors through the two devices. Some semi-finished motors with similar specifications have similar structures, but only the positions of NTC are different. Such two specifications of semi-finished motors are often produced on the same production line, and the equipment for detecting NTC on semi-finished motors is mostly semi-automatic equipment, resulting in many processes such as testing NTC at different positions on semi-finished motors and loading and unloading requiring manual operation, which is inefficient and costly. Summary of the invention

[0004] In view of the above-mentioned defects in the prior art, a NTC welding and testing device is provided.

[0005] The technical solution adopted by the present invention to solve its technical problems is: an NTC welding and testing device, comprising a base, a conveying mechanism for conveying a semi-finished motor with an NTC is arranged on the base, a welding mechanism is arranged on the base, a loading and unloading conveying mechanism and a first loading and unloading mechanism of the semi-finished motor on the welding mechanism are arranged on the base, a testing mechanism for performing resistance test on the NTC after welding on the semi-finished motor is also arranged on the base, a driving mechanism for driving the testing mechanism to test the NTC at different positions is arranged on the testing mechanism, and a loading and unloading conveying mechanism and a second loading and unloading mechanism of the semi-finished motor on the testing mechanism are arranged on the base.

[0006] Preferably, the testing mechanism includes a carrier frame for carrying the semi-finished motor, a test head, a two-axis mobile platform, a mounting plate and a power supply mechanism for providing power to the NTC, the carrier frame is arranged on a base, the power supply mechanism is arranged on the base, the two-axis mobile platform is also arranged on the base, the mounting plate is arranged on the two-axis mobile platform, a rotating part is rotatably arranged on the top surface of the mounting plate, a first support frame is arranged on the side of the rotating part close to the carrier frame, the test head is installed on the first support frame, an avoidance through hole for avoiding the test head is arranged on the mounting plate, the driving mechanism is arranged on the mounting plate, the driving mechanism drives the rotating part to rotate, and a defective product rack located on the moving route of the two-axis mobile platform is arranged on the base.

[0007] Preferably, the driving mechanism includes an electric cylinder, a connecting rod, a first electrode and a second electrode, the electric cylinder is arranged on the top surface of the mounting plate, one end of the connecting rod is hinged to the output shaft of the electric cylinder, and the other end of the connecting rod is hinged to the rotating member, the first electrode is arranged at the bottom end of the mounting plate, the first electrode is electrically connected to the electric cylinder, and the second electrode is arranged on the top of the carrier frame at a position directly below the first electrode.

[0008] Preferably, a first mounting block is provided at the bottom end of the mounting plate, a second mounting block is provided on the top end of the carrier frame and is located directly below the first mounting block, the first electrode is embedded in the bottom surface of the first mounting block, the second electrode is embedded in the top surface of the second mounting block, the first electrode is a spring pin, and the second electrode is a copper sheet.

[0009] Preferably, the power supply mechanism includes a vertical electric linear slide, a power supply column and a connecting frame, the electric linear slide is arranged on the base, the connecting frame is arranged on the electric linear slide, the supporting frame is an n-type structure, the supporting frame includes a horizontal part and two supporting parts supporting the horizontal part, the supporting part is arranged on opposite sides of the bottom end of the horizontal part, the supporting part is arranged on the base, the horizontal part is provided with a plurality of horizontal grooves for limiting the placement of semi-finished motors, the horizontal part is provided with a horizontal through hole at the bottom of each horizontal groove exposing the position of the semi-finished motor to be tested, a power supply column is arranged directly below each of the horizontal through holes, and the power supply column is arranged on the connecting frame.

[0010] Preferably, a rotating through hole is provided at a middle position of the top surface of the rotating member close to one side of the first support frame, a rotating shaft matching and inserted into the rotating through hole is provided on the mounting plate, and an arc-shaped limiting through hole with the rotating shaft as the center is also provided on the top surface of the rotating member, the limiting through hole is located on the side of the rotating member away from the first support frame, and a limiting column inserted into the limiting through hole is provided on the mounting plate.

[0011] Preferably, the welding mechanism comprises a three-axis movable platform and a welding head, wherein the three-axis movable platform is arranged on a base, and the welding head is arranged on the three-axis movable platform.

[0012] Preferably, the first loading and unloading mechanism includes a rotating cylinder, a rotating plate and two cylinder clamps, the rotating cylinder is located between the conveying mechanism and the welding mechanism, a lifting support frame for lifting the rotating cylinder is provided on the base, the center position of the rotating plate is connected to the output end of the rotating cylinder, and the two cylinder clamps are correspondingly arranged at opposite ends of the rotating plate.

[0013] Preferably, the conveying mechanism is a chain conveyor, and the second loading and unloading mechanism is a two-axis manipulator.

[0014] A NTC welding and testing method, the method comprising the following steps:

[0015] S101, the conveying mechanism conveys the semi-finished motor loaded with NTC from the previous station, and the first loading and unloading mechanism loads the semi-finished motor onto the welding mechanism.

[0016] S102, the welding mechanism firmly welds the NTC on the semi-finished motor, and the first loading and unloading mechanism unloads the semi-finished motor onto the conveying mechanism.

[0017] S103, the conveying mechanism continues to convey the welded semi-finished motor, and the second loading and unloading mechanism loads the semi-finished motor onto the testing mechanism.

[0018] S104, the testing mechanism tests the NTC welded on the semi-finished motor, the driving mechanism drives the testing mechanism to test the NTC at different positions, and the second loading and unloading mechanism unloads the tested qualified semi-finished motor to the conveying mechanism.

[0019] S105, the conveying mechanism conveys the semi-finished motor that has passed the test to the subsequent workstation.

[0020] The beneficial effect of the present invention is that the device integrates the welding mechanism and the testing mechanism together, and under the action of the conveying mechanism, the first loading and unloading mechanism and the second loading and unloading mechanism, the device is set up and debugged to automatically perform the welding and testing of the NTC on the semi-finished motor, without the need for manual work, thereby improving production efficiency and reducing labor costs. At the same time, when the testing mechanism tests two semi-finished motors of similar specifications, the driving mechanism drives the testing mechanism to move, thereby testing the NTC on the two semi-finished motors. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of one aspect of an embodiment of the present invention;

[0022] Figure 2 Embodiment of the present invention Figure 1 A magnified schematic diagram of the middle A area;

[0023] Figure 3 Embodiment of the present invention Figure 1 A magnified schematic diagram of the middle B area;

[0024] Figure 4 It is a schematic diagram of the overall structure of another aspect of an embodiment of the present invention;

[0025] Figure 5 It is a schematic diagram of the structure of the testing mechanism and the driving mechanism of an embodiment of the present invention;

[0026] Figure 6 is a side schematic diagram of a testing mechanism and a driving mechanism according to an embodiment of the present invention;

[0027] Figure 7 It is a front view schematic diagram of the parts and driving mechanism on the mounting plate of an embodiment of the present invention;

[0028] Figure 8 It is a schematic diagram of the reverse side of the parts and driving mechanism on the mounting plate of the embodiment of the present invention.

[0029] Figure numerals: 1 base, 10 conveying mechanism, 2 welding mechanism, 20 three-axis mobile platform, 21 welding head, 3 first loading and unloading mechanism, 30 rotating cylinder, 31 rotating plate, 32 cylinder clamp, 33 lifting support frame, 4 testing mechanism, 40 bearing frame, 41 horizontal through hole, 42 testing head, 43 two-axis mobile platform, 44 mounting plate, 440 avoidance through hole, 45 defective product rack, 46 rotating part, 460 limiting through hole, 47 first support frame, 5 electric linear slide, 50 power supply column, 51 connecting frame, 6 electric cylinder, 60 connecting rod, 61 first electrode, 62 second electrode, 63 first mounting block, 64 second mounting block, 7 second loading and unloading mechanism, 8 rotating shaft, 9 limiting column. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be clearly and completely described in combination with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are partial embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention. In addition, the directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", etc., are only referenced to the directions of the attached diagrams. The directional terms used are for better and clearer explanation and understanding of the present invention, rather than indicating or implying the orientation that the present invention must have, and therefore cannot be understood as limitations on the present invention.

[0031] Embodiments of the present invention Figures 1 to 8 As shown in, an NTC welding and testing device includes a base 1, on which a conveying mechanism 10 for conveying a semi-finished motor with NTC is arranged, the conveying mechanism 10 is a chain conveyor, the conveying direction of the chain conveyor is left and right, the chain conveyor is located at the rear side of the top surface of the base 1, a welding mechanism 2 is arranged on the base 1, the welding mechanism 2 is located in front of the chain conveyor on the top surface of the base 1, the welding mechanism 2 is located on the left side of the base 1, the base 1 is provided with a loading and unloading conveying mechanism 10 and a first loading and unloading mechanism 3 for the semi-finished motor on the welding mechanism 2, the first loading and unloading mechanism 3 is located The position between the conveying mechanism 10 and the welding mechanism 2 on the top surface of the base 1, the base 1 is also provided with a testing mechanism 4 for testing the resistance of the NTC after welding on the semi-finished motor, the testing mechanism 4 is also located in front of the chain conveyor on the top surface of the base 1, the testing mechanism 4 is located to the right of the welding mechanism 2, the testing mechanism 4 is provided with a driving mechanism for driving the testing mechanism 4 to test the NTC at different positions, the base 1 is provided with a loading and unloading conveying mechanism 10 and a second loading and unloading mechanism 7 for the semi-finished motor on the testing mechanism 4, the second loading and unloading machine 7 is a two-axis manipulator, and the two-axis manipulator is located to the right of the testing mechanism 4.

[0032] The device integrates a welding mechanism 2 and a testing mechanism 4. Under the action of a conveying mechanism 10, a first loading and unloading mechanism 3 and a second loading and unloading mechanism 7, the device is set up and debugged to automatically perform welding and testing of NTC on a semi-finished motor. Manual work is not required, production efficiency is improved, and labor costs are reduced. At the same time, when the testing mechanism 4 tests two semi-finished motors of similar specifications, the driving mechanism drives the testing mechanism 4 to move, thereby testing the NTC on the two semi-finished motors.

[0033] Further improvements such as Figures 4 to 8As shown in , the testing mechanism 4 includes a carrier frame 40 for carrying the semi-finished motor, a test head 42, a two-axis mobile platform 43, a mounting plate 44 and a power supply mechanism for providing power to the NTC. The carrier frame 40 is arranged on the base 1, and two semi-finished motors of different specifications are arranged on the carrier frame 40 at intervals in the front-to-back direction. The NTCs on the two semi-finished motors of different specifications are located at different positions. The two semi-finished motors of different specifications are respectively the first semi-finished motor and the second semi-finished motor. The power supply mechanism is arranged on the base 1, and the two-axis mobile platform 43 is also arranged on the base 1. The horizontal movement direction of the two-axis mobile platform 43 is the front-to-back direction. The mounting plate 44 is arranged on the two-axis moving platform 43, and a vertical extension plate is arranged at the rear end of the mounting plate 44. The mounting plate 44 is connected to the two-axis moving platform 43 through the extension plate. A rotating member 46 is rotatably arranged on the top surface of the mounting plate 44. The rotating member 46 is a rectangular parallelepiped structure. A first support frame 47 is arranged on the side of the rotating member 46 close to the carrier frame 40, that is, the first support frame 47 is arranged at the front end of the rotating member 46. The test head 42 is installed on the first support frame 47. The test head 42 is a cylindrical temperature tester. The test head 42 tests the NTC by detecting the temperature of the NTC after power is turned on. The axis of the test head 42 is aligned with the horizontal The angle of the direction is 60°, and the mounting plate 44 is provided with an avoidance through hole 440 for avoiding the test head 42. The avoidance through hole 440 is located near the front end of the mounting plate 44, and the test head 42 passes through the bottom surface of the mounting plate 44 through the avoidance through hole 440. The driving mechanism is arranged on the mounting plate 44, and the driving mechanism drives the rotating member 46 to rotate. The base 1 is provided with a defective product rack 45 located on the moving route of the two-axis moving platform 43, and the defective product rack 45 is located on the top surface of the base 1 directly in front of the carrier 40. The second loading and unloading mechanism 7 loads two semi-finished motors of different specifications on the conveying mechanism 10 onto the carrier 40, and the power supply machine The structure supplies power to the NTCs on the two semi-finished motors, and the two-axis mobile platform 43 drives the mounting plate 44 to move downward, so that the test head 42 tests the first semi-finished motor. After the test, the two-axis mobile platform 43 drives the mounting plate 44 to the top of the second semi-finished motor, and the two-axis mobile platform 43 drives the mounting plate 44 to move downward again. At this time, the driving mechanism rotating part 46 rotates, so that the test head 42 turns to the position of the NTC on the second semi-finished motor, and then the test head 42 tests the NTC. At the same time, the unqualified semi-finished motors tested by the second loading and unloading mechanism 7 are unloaded onto the defective product rack 45, and the qualified semi-finished motors are unloaded onto the conveying mechanism 10.

[0034] Further improvements such as Figures 6 to 8As shown in, the driving mechanism includes an electric cylinder 6, a connecting rod 60, a first electrode 61 and a second electrode 62. The electric cylinder 6 is arranged on the top surface of the mounting plate 44, and the electric cylinder 6 is located at the right rear side. One end of the connecting rod 60 is hinged to the output shaft of the electric cylinder 6, and the other end of the connecting rod 60 is hinged to the rotating member 46. The connecting rod 60 is hinged to the right rear side of the top surface of the rotating member 46. The first electrode 61 is arranged at the bottom end of the mounting plate 44, and the first electrode 61 is electrically connected to the electric cylinder 6. The second electrode 62 is arranged on the top end of the carrier 40 at a position directly below the first electrode 61, and the second electrode 62 is electrically connected to an external power supply. The bottom end of the mounting plate 44 is provided with a first mounting block 63, and the first mounting block 63 is located at the right rear side of the bottom surface of the mounting plate 44. A second mounting block 64 is arranged directly below the first mounting block 63. The second mounting block 64 is arranged at the right rear of the second semi-finished motor. The first electrode 61 is embedded in the bottom surface of the first mounting block 63. The second electrode 62 is embedded in the top surface of the second mounting block 64. The first electrode 61 is a spring needle and the second electrode 62 is a copper sheet. When testing the second semi-finished motor, the two-axis moving platform 43 drives the mounting plate 44 to move downward, so that the spring needle and the copper sheet are in contact, so that the electric cylinder 6 obtains electricity. The electric cylinder 6 rotates the rotating part 46 through the connecting rod 60, so that the test head 42 turns to the position of the NTC on the second semi-finished motor. When the mounting plate 44 moves upward, the spring needle and the copper sheet are no longer in contact. The electric cylinder 6 returns and drives the rotating part 46 to return through the connecting rod 60, so that the test head 42 returns to its position, so as to facilitate the testing of the next first semi-finished motor.

[0035] Further improvements, such as Figure 5 and Figure 6As shown in, the power supply mechanism includes a vertical electric linear slide 5, a power supply column 50 and a connecting frame 51, the electric linear slide 5 is arranged on the base 1, the connecting frame 51 is arranged on the electric linear slide 5, the bearing frame 40 is an n-type structure, the bearing frame 40 includes a horizontal part and two supporting parts supporting the horizontal part, the supporting part is arranged on the left and right sides of the bottom end of the horizontal part, the supporting part is arranged on the base 1, and the horizontal part is provided with two horizontal grooves for limiting the placement of semi-finished motors, the first semi-finished motor and the second semi-finished motor are correspondingly arranged in the two horizontal grooves, and the horizontal part is provided with a groove in each horizontal groove The bottom of the groove is provided with a horizontal through hole 41 exposing the position of the semi-finished motor to be tested, and the pins on the semi-finished motor electrically connected to the NTC are exposed through the horizontal through hole 41, and a power supply column 50 is provided directly below each of the horizontal through holes 41, that is, a power supply column 50 is provided directly below each pin electrically connected to the NTC, and the power supply column 50 is electrically connected to an external power source. The power supply column 50 is set on a connecting frame 51, and the electric linear slide 5 drives the power supply column 50 to rise through the connecting frame 51, so that the power supply column 50 contacts the pins, so that the NTC obtains electricity and starts working, so that the test head can test the NTC.

[0036] Further improvements such as Figure 7 and Figure 8 As shown in the figure, a rotating through hole is provided at the middle position of the top surface of the rotating member 46 near the first support frame 47, that is, the rotating through hole is located on the top surface of the rotating member 46 near the middle of the front end, and a rotating shaft 8 matching and inserted into the rotating through hole is provided on the mounting plate 44. A circular arc-shaped limiting through hole 460 with the rotating shaft 8 as the center is also provided on the top surface of the rotating member 46. The limiting through hole 460 is located on the side of the rotating member 46 away from the first support frame 47, that is, the limiting through hole 460 is located on the top surface of the rotating member 46 near the middle of the rear end, and a limiting column 9 inserted into the limiting through hole 460 is provided on the mounting plate 44. The rotating member 46 is rotatably set on the mounting plate 44 through the rotating through hole and the rotating shaft 8. The limiting through hole 460 and the limiting column 9 prevent the rotating member 46 from rotating too much, which causes the test head 42 to be unable to align with the NTC on the second semi-finished motor.

[0037] Further improvements such as Figure 1 and Figure 3 As shown in the figure, the welding mechanism 2 includes a three-axis mobile platform 20 and a welding head 21, the three-axis mobile platform 20 is arranged on the base 1, and the welding head 21 is arranged on the three-axis mobile platform 20. After the first loading and unloading mechanism 3 loads the semi-finished motor onto the three-axis mobile platform 20, the three-axis mobile platform 20 drives the welding head 21 to weld the NTC on the semi-finished motor, that is, the welding mechanism 2 automatically welds the NTC on the semi-finished motor.

[0038] Further improvements such as Figure 1 and Figure 2 As shown in, the first loading and unloading mechanism 3 includes a rotating cylinder 30, a rotating plate 31 and two cylinder clamps 32, the rotating cylinder 30 is located between the conveying mechanism 10 and the welding mechanism 2, and a lifting support frame 33 for lifting the rotating cylinder 30 is provided on the base 1, the lifting support frame 33 includes a lifting plate and two electric telescopic rods, the two electric telescopic rods are correspondingly located on the left and right sides of the bottom surface of the lifting plate, the electric telescopic rods are arranged on the top surface of the base 1, the rotating cylinder 30 is arranged on the top surface of the lifting plate, the output end of the rotating cylinder 30 faces upward, the center position of the rotating plate 31 is connected to the output end of the rotating cylinder 30, and the two cylinder clamps 32 are correspondingly arranged at opposite ends of the rotating plate 31, through the rotating cylinder 30, the lifting support frame 33 and the cylinder clamps 32, the semi-finished motor to be welded on the conveying mechanism 10 is loaded onto the welding mechanism 2, and the semi-finished motor welded on the welding mechanism 2 is unloaded onto the conveying mechanism 10.

[0039] A NTC welding and testing method, the method comprising the following steps:

[0040] S101 , the conveying mechanism 10 conveys the semi-finished motor loaded with NTC from the previous station, and the first loading and unloading mechanism 3 loads the semi-finished motor onto the welding mechanism 2 .

[0041] S102 , the welding mechanism 2 firmly welds the NTC on the semi-finished motor, and the first loading and unloading mechanism 3 unloads the semi-finished motor onto the conveying mechanism 10 .

[0042] S103 , the conveying mechanism 10 continues to convey the welded semi-finished motor, and the second loading and unloading mechanism 7 loads the semi-finished motor onto the testing mechanism 4 .

[0043] S104 , the testing mechanism 4 tests the NTC welded on the semi-finished motor, the driving mechanism drives the testing mechanism 4 to test the NTC at different positions, and the second loading and unloading machine 7 unloads the tested qualified semi-finished motor to the conveying mechanism 10 .

[0044] S105, the conveying mechanism 10 conveys the semi-finished motor that has passed the test to the subsequent workstation.

[0045] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. An NTC welding and testing device, comprising a base; characterized in that, The base is provided with a conveying mechanism for conveying semi-finished motors with NTCs; the base is provided with a welding mechanism; the base is provided with a loading and unloading conveying mechanism and a first loading and unloading mechanism for semi-finished motors on the welding mechanism; the base is also provided with a testing mechanism for performing resistance testing on the NTC after welding on the semi-finished motor; the testing mechanism is provided with a driving mechanism for driving the testing mechanism to test the NTCs at different positions; the base is provided with a loading and unloading conveying mechanism and a second loading and unloading mechanism for semi-finished motors on the testing mechanism.

2. The NTC welding and testing equipment according to claim 1, characterized in that: The testing mechanism includes a carrier frame for carrying the semi-finished motor, a test head, a two-axis mobile platform, a mounting plate and a power supply mechanism for providing power to the NTC; the carrier frame is arranged on a base; the power supply mechanism is arranged on the base; the two-axis mobile platform is also arranged on the base; the mounting plate is arranged on the two-axis mobile platform; a rotating part is rotatably arranged on the top surface of the mounting plate; a first support frame is arranged on the side of the rotating part close to the carrier frame; the test head is installed on the first support frame; an avoidance through hole for avoiding the test head is arranged on the mounting plate; the driving mechanism is arranged on the mounting plate; the driving mechanism drives the rotating part to rotate; a defective product rack located on the moving route of the two-axis mobile platform is arranged on the base.

3. An NTC welding and testing device according to claim 2, characterized in that: The driving mechanism includes an electric cylinder, a connecting rod, a first electrode and a second electrode; the electric cylinder is arranged on the top surface of the mounting plate; one end of the connecting rod is hinged to the output shaft of the electric cylinder; the other end of the connecting rod is hinged to the rotating part; the first electrode is arranged at the bottom end of the mounting plate; the first electrode is electrically connected to the electric cylinder; the second electrode is arranged on the top of the support frame at a position directly below the first electrode.

4. The NTC welding and testing equipment according to claim 3, characterized in that: A first mounting block is arranged at the bottom end of the mounting plate; a second mounting block is arranged on the top end of the carrier frame and is located directly below the first mounting block; the first electrode is embedded in the bottom surface of the first mounting block; the second electrode is embedded in the top surface of the second mounting block; the first electrode is a spring pin; and the second electrode is a copper sheet.

5. The NTC welding and testing equipment according to claim 2, characterized in that: The power supply mechanism includes a vertical electric linear slide, a power supply column and a connecting frame; the electric linear slide is arranged on the base; the connecting frame is arranged on the electric linear slide; the support frame is an n-type structure; the support frame includes a horizontal part and two supporting parts supporting the horizontal part; the supporting part is arranged on the opposite sides of the bottom end of the horizontal part; the supporting part is arranged on the base; the horizontal part is provided with a plurality of horizontal grooves for limiting the placement of semi-finished motors; the horizontal part is provided with a horizontal through hole at the bottom of each horizontal groove that exposes the position of the semi-finished motor to be tested; a power supply column is arranged directly below each horizontal through hole; the power supply column is arranged on the connecting frame.

6. The NTC welding and testing equipment according to claim 2, characterized in that: A rotating through hole is provided at the middle position of the top surface of the rotating member close to the first support frame; a rotating shaft matching and inserted into the rotating through hole is provided on the mounting plate; an arc-shaped limiting through hole with the rotating shaft as the center is also provided on the top surface of the rotating member; the limiting through hole is located on the side of the rotating member away from the first support frame; a limiting column inserted into the limiting through hole is provided on the mounting plate.

7. The NTC welding and testing equipment according to claim 1, characterized in that: The welding mechanism comprises a three-axis movable platform and a welding head; the three-axis movable platform is arranged on a base; and the welding head is arranged on the three-axis movable platform.

8. The NTC welding and testing equipment according to claim 1, characterized in that: The first loading and unloading mechanism includes a rotating cylinder, a rotating plate and two cylinder clamps; the rotating cylinder is located between the conveying mechanism and the welding mechanism; a lifting support frame for lifting the rotating cylinder is provided on the base; the center position of the rotating plate is connected to the output end of the rotating cylinder; the two cylinder clamps are correspondingly arranged at the opposite ends of the rotating plate.

9. The NTC welding and testing equipment according to claim 1, characterized in that: The conveying mechanism is a chain conveyor; the second loading and unloading mechanism is a two-axis manipulator.

10. An NTC welding and testing method, based on an NTC welding and testing device according to any one of claims 1 to 9, characterized in that: The method comprises the following steps: S101, the conveying mechanism conveys the semi-finished motor loaded with NTC from the previous station, and the first loading and unloading mechanism loads the semi-finished motor onto the welding mechanism. S102, the welding mechanism firmly welds the NTC on the semi-finished motor, and the first loading and unloading mechanism unloads the semi-finished motor onto the conveying mechanism. S103, the conveying mechanism continues to convey the welded semi-finished motor, and the second loading and unloading mechanism loads the semi-finished motor onto the testing mechanism. S104, the testing mechanism tests the NTC welded on the semi-finished motor, the driving mechanism drives the testing mechanism to test the NTC at different positions, and the second loading and unloading mechanism unloads the tested qualified semi-finished motor to the conveying mechanism. S105, the conveying mechanism conveys the semi-finished motor that has passed the test to the subsequent workstation.

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