Pre-painting detection device for stator core

Abstract

The utility model discloses a pre-painting detection device for a stator core, which comprises a tool seat and an iron core, the inner side surface of the tool seat is provided with an electric detection part for electrically detecting the iron core, the upper side surface of the tool seat is provided with three chaining blocks in an annular array, one ends, close to each other, of the three chaining blocks are provided with clamp fixing blocks, and the clamp fixing blocks are connected with the clamp fixing blocks. The lower side face of the clamp fixing block is fixedly connected with a wire abutting part used for abutting against the iron core electrical testing end part to be attached to the electrical testing part, and the lower side face of the clamp fixing block is vertically and movably connected with a floating part used for pushing the wire abutting part to make contact with the iron core. A clamp assembly used for driving the floating part to move up and down and a reset assembly used for driving the floating part to reset are arranged on the upper side face of the clamp fixing block. The device has the advantage of good detection effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of stator core pre-paint detection, and relates to a stator core pre-paint detection device. Background Art

[0002] The stator is the fixed part of an electric motor or generator. It usually consists of an iron core and windings. The main function of the stator is to generate a rotating magnetic field, so that the rotor rotates under the action of the magnetic field. Before painting the iron core, the copper wire inside the iron core needs to be electrically tested to ensure that the iron core can work normally after production is completed.

[0003] The Chinese utility model patent with authorization announcement number CN218349365U discloses a motor stator core detection device, including a detection fixing seat, a detection hole is provided at the center of the detection fixing seat, and several arc-shaped protrusions corresponding to the welding joints are evenly provided on the hole wall of the detection hole; the inner diameter detection module includes a central column and a detection block, the central column is provided in the detection hole inside the detection fixing seat, and several detection blocks extend from the outer periphery of the central column, and the detection block has an integral V-groove detection block and an arc-groove detection block; a conveyor belt is provided under the detection fixing seat, and a movable support mechanism is provided at the bottom of the detection fixing seat; this technical solution uses the detection fixing seat to move and fix the stator core, and detects the inner diameter of the stator core through the inner diameter detection module, but this technical solution cannot electrically detect the copper wire in the stator core, which may have limitations when used. Utility Model Content

[0004] In view of the above problems, the present invention proposes a pre-paint detection device for a stator core, which effectively solves the problems in the prior art.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: a pre-paint detection device for a stator core, comprising a tooling seat, an inner side surface of the tooling seat is provided with an electrical measuring part for electrically detecting the core, and an upper side surface of the tooling seat is provided with three linking blocks in a circular array, and one end of the three linking blocks close to each other is provided with a clamp fixing block, and the lower side surface of the clamp fixing block is fixedly connected with a line-receiving part for pushing the electrical measuring end of the core to fit into the electrical measuring part, and the lower side surface of the clamp fixing block is movably connected with a floating part for pushing the line-receiving part to contact the core, and the upper side surface of the clamp fixing block is provided with a clamp assembly for driving the floating part to move up and down and a reset assembly for driving the floating part to reset.

[0006] Furthermore, the clamp assembly includes a quick clamp arranged on the upper side of the clamp fixing block and a handle arranged on the quick clamp, and the pressure head of the quick clamp passes through the clamp fixing block and is connected and fixed to the upper side of the floating part.

[0007] Furthermore, the floating part includes a floating block arranged at the lower end of the quick clamp pressure head, and a plurality of grooves are opened on the outer circumferential side of the floating block, and wedge blocks are arranged in each of the grooves. The side of the wedge block close to the abutment part is inclined from top to bottom toward the center of the floating block.

[0008] Furthermore, the line-abutting portion includes a fixed block arranged on the lower side of the clamp fixed block, a plurality of through slots are formed through the annular side of the fixed block, a thimble is inserted into the through slot, a stop block is provided at the end of the through slot away from the wedge block, the stop block is detachably connected to the fixed block, a thimble spring is sleeved on the thimble, two ends of the thimble spring respectively abut against the thimble and the stop block, both ends of the thimble extend out of the through slot and respectively abut against the wedge block and the electrical measuring end of the iron core.

[0009] Furthermore, the electrical measuring part includes a fixed plate arranged on the inner side of the workbench and a busbar connector arranged on the lower side of the fixed plate. The inner side of the fixed plate is provided with multiple wire slots and three-phase end holes. The busbar connector is provided with a wiring block and a three-phase end respectively inserted into the wire slots and the three-phase end holes.

[0010] Furthermore, the reset assembly includes three guide shafts arranged in a circular array on the upper side of the floating block, the upper ends of the guide shafts pass through the link block and extend above the link block, and a reset spring is sleeved on the guide shaft, and the upper and lower ends of the reset spring respectively abut against the guide shaft and the link block.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] The utility model realizes the resistance of the copper wire at the electric measuring end of the iron core through the clamp assembly, the floating part and the wire-resisting part, so that the copper wire at the electric measuring end of the iron core is always in contact with the electric measuring part, thereby ensuring the reliability of the iron core electric detection; the floating part and the wire-resisting part are quickly reset through the reset assembly and the ejector spring, thereby improving the detection efficiency of the detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the installation of the utility model;

[0014] Figure 2 This is an explosion diagram of the utility model;

[0015] Figure 3 It is a three-dimensional diagram of the utility model;

[0016] Figure 4 This is an exploded schematic diagram of the tooling part of the utility model;

[0017] Figure 5 This is a schematic diagram of the explosion structure of the electric measuring part of the utility model;

[0018] Figure 6 This is a schematic diagram of the cross-sectional structure of the floating part of the utility model;

[0019] Figure 7 This is a schematic diagram of the cooperation structure between the wedge block and the ejector pin of the utility model;

[0020] Figure 8 It is a three-dimensional diagram of the iron core of the utility model.

[0021] In the figure, 1 is the iron core; 2 is the tooling seat; 3 is the fixing plate; 4 is the clamp fixing block; 5 is the quick clamp; 6 is the link block; 7 is the line contact part; 8 is the floating part; 9 is the electrical measuring part; 10 is the guide shaft; 11 is the return spring; 12 is the handle; 301 is the wire trough; 302 is the three-phase terminal hole; 701 is the fixing block; 702 is the ejector pin; 703 is the ejector pin spring; 704 is the stop block; 801 is the floating block; 802 is the wedge block; 901 is the busbar connector; 902 is the terminal block; 903 is the three-phase terminal. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] like Figure 1-8 As shown, a pre-paint detection device for a stator core comprises a tooling seat 2 and an iron core 1. An electrical measuring portion 9 for electrically detecting the iron core 1 is provided on the inner side of the tooling seat 2. Three link blocks 6 are provided on the upper side of the tooling seat 2 in a circular array by bolts. One end of the three link blocks 6 close to each other is connected with a clamp fixing block 4 by bolts. A line-receiving portion 7 for contacting the electrical measuring end of the iron core 1 and fitting the electrical measuring portion 9 is fixedly connected on the lower side of the clamp fixing block 4. A floating portion 8 for pushing the line-receiving portion 7 to contact the iron core 1 is movably connected on the lower side of the clamp fixing block 4. A clamp assembly for driving the floating portion 8 to move up and down and a reset assembly for driving the floating portion 8 to reset are provided on the upper side of the clamp fixing block 4.

[0024] When in use, the staff places the tooling seat 2 on the electrical measuring end of the iron core 1, and inserts the copper wire at the electrical measuring end of the iron core 1 into the electrical measuring part 9. Then the staff pushes the floating part 8 downward through the clamp assembly. While the floating part 8 moves downward, the floating part 8 pushes the wire-contact part 7 along the radial extension line of the iron core 1 toward the copper wire at the electrical measuring end of the iron core 1, so that the wire-contact part 7 pushes the copper wire at the electrical measuring end of the iron core 1 to keep in contact with the electrical measuring part 9. Subsequently, the staff energizes the electrical measuring part 9 through an external power supply to detect whether the conduction of the copper wire in the iron core 1 is normal. After the inspection of the iron core 1 is completed, the staff disconnects the power supply and controls the clamp assembly to make the floating part 8 move upward under the action of the reset assembly, so that the floating part 8 no longer pushes the wire-contact part 7 to contact the copper wire, thereby separating the copper wire from the electrical measuring part 9, and making the iron core 1 detach from the tooling seat 2 to detect the next iron core 1, thereby realizing rapid electrical inspection of the iron core 1 and improving the electrical inspection efficiency of the iron core 1.

[0025] In this embodiment, the clamp assembly includes a quick clamp 5 fixed to the upper side of the clamp fixing block 4 by bolts and a handle 12 provided on the quick clamp 5. The pressure head of the quick clamp 5 passes through the clamp fixing block 4 and is connected and fixed to the upper side of the floating part 8. When in use, the staff can press the handle 12 downward to make the pressure block of the quick clamp 5 press the floating part 8 downward, thereby realizing the downward movement of the floating part 8. The quick clamp 5 is a prior art and the working principle will not be described in detail here.

[0026] In this embodiment, the floating portion 8 includes a floating block 801 arranged at the lower end of the pressure head of the quick clamp 5. A plurality of grooves are provided on the outer side of the floating block 801, and wedge blocks 802 are provided in each of the grooves. The side of the wedge block 802 close to the abutting portion 7 is inclined from top to bottom toward the center of the floating block 801, and the side of the wedge block 802 is in contact with the abutting portion 7. The number of wedge blocks 802 is consistent with the number of copper wires at the fixed measuring end of the iron core 1, and the number and position can be changed according to the actual product. When in use, the floating block 801 moves downward under the action of the clamp assembly. At the same time, under the action of the inclined surface of the wedge block 802, the wedge block 802 pushes the abutting portion 7 to move away from the center of the floating block 801, so that the abutting portion 7 pushes the copper wire to contact with the electrical measuring portion 9, so as to ensure that the copper wire always maintains contact with the electrical measuring portion 9 when being tested.

[0027] In this embodiment, the line-receiving portion 7 includes a fixing block 701 fixed to the lower side of the clamp fixing block 4 by bolts, and a plurality of through grooves are formed on the annular side of the fixing block 701, and a thimble 702 is inserted into the through groove. A stopper 704 is provided at the end of the through groove away from the wedge block 802, and the stopper 704 is detachably connected to the fixing block 701 by bolts, and a thimble spring 703 is provided on the thimble 702, and the two ends of the thimble spring 703 respectively abut against the thimble 702 and the stopper 704, and both ends of the thimble 702 extend out of the through groove and respectively abut against the wedge block 802 and the iron core 1. At the electrical measuring end, when in use, the floating block 801 moves downward, and the wedge block 802 pushes the ejector pin 702 toward the copper wire, so that the ejector pin 702 pushes the copper wire to keep in contact with the electrical measuring part 9 to ensure the stability of the copper wire during testing. When the inspection of the iron core 1 is completed, the floating block 801 moves upward under the action of the reset assembly. At the same time, the wedge block 802 no longer interferes with the ejector pin 702. The ejector pin 702 is released toward the wedge block 802 under the action of the ejector spring 703, so that the ejector pin 702 no longer interferes with the copper wire, and the limit on the copper wire is released, so that the iron core 1 can be separated from the tooling seat 2.

[0028] In this embodiment, the electrical measuring part 9 includes a fixed plate 3 fixed to the inner side of the tooling seat 2 by bolts and a busbar connector 901 fixed to the lower side of the fixed plate 3 by bolts. The inner side of the fixed plate 3 is provided with a plurality of wire grooves 301 and three-phase end holes 302. The busbar connector 901 is provided with a terminal block 902 and a three-phase end 903 respectively inserted into the wire groove 301 and the three-phase end hole 302. When in use, the copper wire at the electrical detection end of the iron core 1 is inserted into the wire groove 301. Under the action of the floating part 8 and the wire-abutting part 7, the copper wire fits with the terminal block 902 on the busbar connector 901. Afterwards, the staff energizes the three-phase end 903 of the busbar connector 901 through an external power supply to detect the conductive effect of the copper wire.

[0029] In this embodiment, the reset assembly includes three guide shafts 10 threadedly connected to the upper side of the floating block 801 in an annular array. The upper end of the guide shaft 10 passes through the link block 6 and extends above the link block 6. A reset spring 11 is sleeved on the guide shaft 10. The upper and lower ends of the reset spring 11 respectively abut against the guide shaft 10 and the link block 6. When the electrical inspection of the iron core 1 is completed, the staff pulls the handle 12 back to its original position. At the same time, the floating block 801 moves upward under the action of the elastic force of the reset spring 11, so that the floating block 801 quickly returns to its original position, so as to realize rapid reset of the detection device and improve detection efficiency.

[0030] The working principle of this technical solution is as follows: the staff places the tooling seat 2 on the electrical measuring end of the iron core 1 so that the copper wire at the electrical measuring end is located in the wire groove 301 at the corresponding position of the fixed plate 3, and presses down the handle 12 to make the pressure head of the quick clamp 5 push the floating block 801 downward, thereby making the wedge block 802 squeeze the ejector pin 702, so that the copper wire at the electrical measuring end of the iron core 1 is in close contact with the terminal block 902 of the busbar connector 901. At the same time, the staff energizes the three-phase end 903 of the busbar connector 901 to detect whether the conduction of the iron core 1 is normal. If it is normal, it will flow into the next process. If it is abnormal, it will be rejected. After the inspection is completed, the handle 12 is pulled back, and the floating block 801 moves upward under the action of the reset spring 11, so that the wedge block 802 in the floating block 801 no longer squeezes the ejector pin 702. Similarly, under the action of the ejector spring 703, the ejector pin 702 retracts into the through slot, canceling the squeezing of the end of the iron core 1, and then the tooling seat 2 is removed to inspect the next iron core 1.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A stator core pre-paint inspection device, comprising a tooling seat, characterized in that: The inner side of the tooling seat is provided with an electric measuring part for electrically detecting the iron core, and the upper side of the tooling seat is provided with three link blocks in a circular array, and the ends of the three link blocks close to each other are provided with a clamp fixing block, and the lower side of the clamp fixing block is fixedly connected with a line-receiving part for pushing the electric measuring end of the iron core to fit into the electric measuring part, and the lower side of the clamp fixing block is movably connected with a floating part for pushing the line-receiving part to contact the iron core, and the upper side of the clamp fixing block is provided with a clamp assembly for driving the floating part to move up and down and a reset assembly for driving the floating part to reset.

2. The stator core pre-painting inspection device according to claim 1, characterized in that: The clamp assembly includes a quick clamp arranged on the upper side of the clamp fixing block and a handle arranged on the quick clamp. The pressure head of the quick clamp passes through the clamp fixing block and is connected and fixed to the upper side of the floating part.

3. The stator core pre-paint inspection device according to claim 2, characterized in that: The floating part includes a floating block arranged at the lower end of the quick clamp pressure head. The outer circumferential side of the floating block is provided with multiple grooves, and wedge blocks are arranged in each of the grooves. The side of the wedge block close to the abutment part is inclined from top to bottom toward the center of the floating block.

4. The stator core pre-paint inspection device according to claim 3, characterized in that: The abutment portion includes a fixed block arranged on the lower side of the clamp fixed block, a plurality of through slots are formed through the annular side of the fixed block, a thimble is inserted into the through slot, a stopper is provided at the end of the through slot away from the wedge block, the stopper is detachably connected to the fixed block, a thimble spring is sleeved on the thimble, two ends of the thimble spring respectively abut against the thimble and the stopper, both ends of the thimble extend out of the through slot and respectively abut against the wedge block and the electrical measuring end of the iron core.

5. The stator core pre-paint inspection device according to claim 1, characterized in that: The electrical measuring part includes a fixed plate arranged on the inner side of the workbench and a busbar connector arranged on the lower side of the fixed plate. The inner side of the fixed plate is provided with multiple wire slots and three-phase end holes. The busbar connector is provided with a wiring block and a three-phase end respectively inserted into the wire slots and the three-phase end holes.

6. The stator core pre-paint inspection device according to claim 3, characterized in that: The reset assembly includes three guide shafts arranged in a circular array on the upper side of the floating block. The upper ends of the guide shafts pass through the link block and extend above the link block. A reset spring is sleeved on the guide shaft, and the upper and lower ends of the reset spring respectively abut against the guide shaft and the link block.

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