A transformer testing and positioning device

Abstract

The present invention relates to the technical field of test positioning devices, and discloses a transformer test positioning device, comprising a support table, a support tube fixedly mounted on the top of the support table, a closed structure on the top of the support tube, and a turntable rotatably mounted on the top of the support tube, four positioning grooves equidistantly extending through the upper surface of the turntable in the circumferential direction, a bracket slidably mounted on the inner wall of each positioning groove, and two through holes extending through the top of the bracket. In the present invention, positioning clamps hinged around the top of the bracket close together under the extrusion of the side walls of the positioning groove, pushing the transformer placed on the bracket to the middle position, facilitating the automatic positioning of the contact pins of the transformer, and clamping the transformer with four clamps to prevent the pins of the transformer from moving when in contact with the positive conductive spring clip and the negative conductive spring clip, resulting in poor contact and affecting subsequent test results.

Description

Technical Field

[0001] The present invention relates to the technical field of test positioning devices, and in particular to a transformer test positioning device. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. It primarily consists of a coil, a magnetic core, and pins. Transformer parameters such as inductance and resistance are crucial factors influencing the transformer's characteristics. During the transformer production process, these parameters are tested, and only qualified products can be shipped.

[0003] An existing transformer shrapnel-type testing device (Announcement No.: CN213843392U) has at least the following disadvantages: the above patent loads the transformer from the bottom of the loading port onto the loading port, and the transformer pins will rest against the bottom edge of the loading port. The vacuum air pipe outputs the vacuum air channel to form a vacuum state in the vacuum air channel to adsorb and position the transformer on the loading port. Multiple transformers can be tested at one time and automatically positioned. The above patent requires manual alignment of the transformer pins with the clearance gap of the loading port to achieve the positioning and installation of the transformer, resulting in slow positioning and affecting the testing efficiency of the transformer. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a transformer testing and positioning device.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A transformer testing and positioning device comprises a support table, a support cylinder is fixedly mounted on the top of the support table, the top of the support cylinder is a closed structure, and a turntable is rotatably mounted on the top of the support cylinder, four positioning grooves are equidistantly provided through the upper surface of the turntable in the circumferential direction, a bracket is slidably mounted on the inner wall of each positioning groove, two through holes are provided through the top of the bracket, a lifting mechanism is installed between the bracket and the support cylinder, and a positioning clamping mechanism is installed on the top of the bracket.

[0007] As a further solution of the present invention, the positioning clamping mechanism includes four positioning clamping plates hinged to the four sides of the top of the bracket through torsion hinges, and the turntable is provided with an embedding groove on the upper surface of the positioning clamping plate located near the outermost side.

[0008] As a further solution of the present invention, the lifting mechanism includes a guide column fixedly mounted on the outer surface of the bracket close to the support tube, the outer periphery of the support tube is provided with a guide groove matching the guide column, and the guide column is slidably mounted on the inner wall of the guide groove.

[0009] As a further solution of the present invention, the guide groove includes a descending section guide groove, a clamping section guide groove, an ascending section guide groove and a loosening section guide groove which are connected to each other, and the upper surface of the support platform near the clamping section guide groove is respectively installed with a connecting mechanism and a cleaning mechanism.

[0010] As a further solution of the present invention, the connection mechanism includes a plurality of spring rods fixedly mounted on the upper surface of the support platform, the telescopic ends of the plurality of spring rods are fixedly mounted with a circuit board, the upper surface of the circuit board is mounted with a positive conductive spring clip and a negative conductive spring clip, the outer surface of the support platform is fixedly mounted with a data connector, the data connector is electrically connected to the circuit board, and a pressing component is installed between the bracket and the circuit board.

[0011] As a further solution of the present invention, the pressing assembly includes a trapezoidal plate fixedly mounted on the outer surfaces of both sides of the circuit board, and two pressing rods are symmetrically fixedly mounted on the outer surfaces of the opposite sides of the bracket.

[0012] As a further solution of the present invention, the cleaning mechanism includes a turntable rotatably mounted on the upper surface of the support platform, a plurality of copper brushes are evenly fixedly mounted on the upper surface of the turntable, and a transmission assembly is installed between the turntable and the turntable.

[0013] As a further solution of the present invention, the transmission assembly includes a transmission gear fixedly mounted on the outer periphery of the turntable, a collar fixedly mounted on the lower surface of the turntable, a gear ring fixedly mounted on the inner wall of the collar, and the transmission gear meshes with the gear ring.

[0014] As a further solution of the present invention, a stepper motor is fixedly mounted on the top wall of the support cylinder, and the output end of the stepper motor passes through the top of the support cylinder and is fixedly mounted to the rotation center of the turntable.

[0015] The beneficial effects of the present invention are:

[0016] 1. The turntable is driven by a stepper motor to rotate 90 degrees, so that the guide column installed on the outside of the bracket moves into the guide groove of the descending section, allowing the bracket to drive the transformer downward, so that the positioning clamps hinged around the top of the bracket are squeezed together by the side walls of the positioning groove, pushing the transformer placed on the bracket to the middle position, facilitating the automatic positioning of the transformer contact pins. The transformer is clamped and fixed by four clamps to prevent the transformer pins from moving when contacting the positive and negative conductive springs, resulting in poor contact and affecting the subsequent test results.

[0017] 2. The transformer is moved by the turntable and the bracket, and the transformer is automatically positioned, clamped, and released during the movement. The transformer is automatically connected to the external test equipment through the connection mechanism for testing. When the transformer is tested, the tested transformer can be taken out and the next transformer to be tested can be placed, which can realize continuous testing of the transformer and improve the testing efficiency of the transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a transformer testing and positioning device proposed by the present invention;

[0019] Figure 2 This is a schematic diagram of the top structure of a turntable of a transformer testing and positioning device proposed by the present invention;

[0020] Figure 3 This is a schematic diagram of the bottom structure of a turntable of a transformer testing and positioning device proposed by the present invention;

[0021] Figure 4 This is a schematic diagram of the bracket structure of a transformer testing and positioning device proposed by the present invention;

[0022] Figure 5 This is a schematic diagram of the support tube structure of a transformer testing and positioning device proposed by the present invention;

[0023] Figure 6 This is a schematic diagram of the circuit board structure of a transformer testing and positioning device proposed by the present invention;

[0024] Figure 7 This is a schematic diagram of the turntable structure of a transformer testing and positioning device proposed by the present invention;

[0025] Figure 8 This is a schematic diagram of the turntable structure of a transformer testing and positioning device proposed by the present invention;

[0026] Figure 9 This is a schematic diagram of the expanded structure of the guide groove of a transformer testing and positioning device proposed by the present invention.

[0027] In the figure: 1. Support table; 2. Support cylinder; 3. Turntable; 4. Positioning groove; 5. Bracket; 6. Through hole; 7. Positioning splint; 8. Guide column; 9. Guide groove; 901. Descending section guide groove; 902. Clamping section guide groove; 903. Ascending section guide groove; 904. Release section guide groove; 10. Spring rod; 11. Circuit board; 12. Trapezoidal plate; 13. Positive conductive spring; 14. Negative conductive spring; 15. Pressure rod; 16. Stepping motor; 17. Turntable; 18. Copper brush; 19. Transmission gear; 20. Ring; 21. Gear ring; 22. Embedded groove; 23. Data connector. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] Refer to the attached Figure 1 -Attached Figure 9 A transformer testing and positioning device includes a support table 1, a support cylinder 2 is fixedly installed on the top of the support table 1, the top of the support cylinder 2 is a closed structure, and a turntable 3 is rotatably installed on the top of the support cylinder 2, and four positioning grooves 4 are equidistantly opened on the upper surface of the turntable 3 in the circumferential direction. A bracket 5 is slidably installed on the inner wall of each positioning groove 4, and two through holes 6 are opened on the top of the bracket 5. A lifting mechanism is installed between the bracket 5 and the support cylinder 2, and a positioning clamping mechanism is installed on the top of the bracket 5. A stepping motor 16 is fixedly installed on the top wall of the support cylinder 2, and the output end of the stepping motor 16 passes through the top of the support cylinder 2 and is fixedly installed with the rotation center of the turntable 3.

[0031] In this embodiment, the positioning and clamping mechanism includes four positioning plates 7 hinged to the four sides of the top of the bracket 5 through torsion hinges. The four positioning plates 7 are fixedly installed with rubber pads on the sides close to each other to increase the friction with the transformer and make the transformer clamping effect better; the turntable 3 is provided with an embedding groove 22 on the upper surface of the positioning plate 7 located on the outermost side, and the lifting mechanism includes a guide column 8 fixedly installed on the outer surface of the bracket 5 close to the support tube 2. The outer periphery of the support tube 2 is provided with a guide groove 9 matching the guide column 8, and the guide column 8 is slidably installed on the inner wall of the guide groove 9.

[0032] The turntable 3 is driven by the stepper motor 16 to rotate 90 degrees, so that the guide column 8 installed on the outside of the bracket 5 moves into the descending section guide groove 901, so that the bracket 5 can drive the transformer to move downward, and the positioning clamps 7 hinged around the top of the bracket 5 are squeezed together by the side walls of the positioning groove 4, pushing the transformer placed on the bracket 5 to the middle position, making it convenient to position the contact pins of the transformer, and clamping the transformer with four clamps 7 to prevent the pins of the transformer from moving when contacting the positive conductive spring clip 13 and the negative conductive spring clip 14, resulting in poor contact and affecting the subsequent test results.

[0033] In this embodiment, the guide groove 9 includes a descending section guide groove 901, a clamping section guide groove 902, an ascending section guide groove 903 and a loosening section guide groove 904, which are connected to each other. The descending section guide groove 901 and the clamping section guide groove 902 are used to drive the bracket 5 to move downward as a whole, and to center the transformer and clamp it through four positioning clamps 7; the ascending section guide groove 903 and the loosening section guide groove 904 are used to drive the bracket 5 to rise and reset as a whole, and loosen the clamping of the transformer; the upper surface of the support platform 1 near the clamping section guide groove 902 is respectively installed with a connecting mechanism and a cleaning mechanism.

[0034] In this embodiment, the connection mechanism includes a plurality of spring rods 10 fixedly mounted on the upper surface of the support platform 1, a circuit board 11 is fixedly mounted on the telescopic ends of the plurality of spring rods 10, a positive conductive spring clip 13 and a negative conductive spring clip 14 are mounted on the upper surface of the circuit board 11, a data connector 23 is fixedly mounted on the outer surface of the support platform 1, the data connector 23 is electrically connected to the circuit board 11, a pressing assembly is installed between the bracket 5 and the circuit board 11, the pressing assembly includes a trapezoidal plate 12 fixedly mounted on the outer surfaces of both sides of the circuit board 11, and two pressing rods 15 are symmetrically fixedly mounted on the outer surfaces of the opposite sides of the bracket 5.

[0035] When the turntable 3 drives the bracket 5 to move to the circuit board 11, the pressure rod 15 at the front end installed on the bracket 5 will abut against the oblique side of the trapezoidal plate 12, and the circuit board 11 will be pressed downward by the pressure rod 15 and the trapezoidal plate 12, so that the spring rod 10 is compressed, thereby preventing the circuit board 11 from lateral collision with the pins of the transformer, resulting in deformation of the pins; after the pressure rod 15 at the front end passes over the upper surface of the trapezoidal plate 12, the circuit board 11 will move upward under the elastic force of the spring rod 10, so that the positive conductive spring clip 13 and the negative conductive spring clip 14 installed on the circuit board 11 contact the pins of the transformer. At this time, the external test equipment is connected to the data connector 23 via a connecting line, and the transformer can be tested through the external test equipment.

[0036] In this embodiment, the cleaning mechanism includes a turntable 17 rotatably mounted on the upper surface of the support platform 1, and a number of copper brushes 18 are evenly fixedly mounted on the upper surface of the turntable 17. A transmission assembly is installed between the turntable 17 and the turntable 3. The transmission assembly includes a transmission gear 19 fixedly mounted on the outer periphery of the turntable 17, a ring 20 is fixedly mounted on the lower surface of the turntable 3, and a gear ring 21 is fixedly mounted on the inner wall of the ring 20, and the transmission gear 19 is meshed with the gear ring 21.

[0037] As the turntable 3 rotates, the ring gear 21 is driven to rotate through the collar 20, so that the ring gear 21 drives the transmission gear 19 meshing with it to rotate, so that the transmission gear 19 can drive the copper brush 18 installed on the turntable 17 to rotate, so that the copper brush 18 can clean the oxide layer on the surface of the pin of the transformer passing over it, so as to prevent the oxide layer of the pin from affecting the conductive effect between the positive conductive spring 13 and the negative conductive spring 14.

[0038] From the above description, it can be seen that the above-mentioned embodiment of the present invention achieves the following technical effects: when in use, the transformer to be tested is placed on the bracket 5 (here refers to the bracket 5 close to the descending section guide groove 901) which is raised to be flush with the upper surface of the turntable 3, and the turntable 3 is driven by the stepping motor 16 to rotate 90 degrees, so that the guide column 8 installed on the outside of the bracket 5 moves into the descending section guide groove 901, so that the bracket 5 can drive the transformer to move downward, so that the positioning clamps 7 hinged around the top of the bracket 5 are squeezed by the side walls of the positioning groove 4, and the transformer placed on the bracket 5 is pushed to the middle position, which is convenient for positioning the contact pin position of the transformer, and the transformer is clamped and fixed by the four clamps 7 to prevent the transformer pins from moving when contacting the positive conductive spring piece 13 and the negative conductive spring piece 14, resulting in poor contact and affecting the subsequent test results (when testing the transformer, the turntable 3 stops rotating);

[0039] As the turntable 3 rotates, the ring gear 21 is driven to rotate by the collar 20, so that the ring gear 21 drives the transmission gear 19 meshing with it to rotate, so that the transmission gear 19 can drive the copper brush 18 installed on the turntable 17 to rotate, so that the copper brush 18 can clean the oxide layer on the surface of the transformer pin passing over it, so as to prevent the oxide layer of the pin from affecting the conductive effect between the positive conductive spring 13 and the negative conductive spring 14;

[0040] When the turntable 3 drives the bracket 5 to move to the circuit board 11, the pressure rod 15 at the front end installed on the bracket 5 will abut against the oblique side of the trapezoidal plate 12, and the circuit board 11 will be pressed downward by the pressure rod 15 and the trapezoidal plate 12, so that the spring rod 10 is compressed, thereby preventing the circuit board 11 from lateral collision with the pins of the transformer, resulting in deformation of the pins; after the pressure rod 15 at the front end passes over the upper surface of the trapezoidal plate 12, the circuit board 11 will move upward under the elastic force of the spring rod 10, so that the positive conductive spring clip 13 and the negative conductive spring clip 14 installed on the circuit board 11 will contact the pins of the transformer. At this time, the external test equipment is connected to the data connector 23 via a connecting line, and the transformer can be tested by the external test equipment;

[0041] After the test is completed, the stepper motor 16 drives the turntable 3 to rotate as a whole again, so that the pressure rod 15 installed at the rear end of the bracket 5 presses the trapezoidal plate 12 again, so that the circuit board 11 moves downward as a whole, disconnecting the transformer pin from the positive conductive spring piece 13 and the negative conductive spring piece 14, and preventing the transformer pin from rubbing against the positive conductive spring piece 13 and the negative conductive spring piece 14, which would cause deformation of the transformer pin.

[0042] When the guide column 8 installed on the bracket 5 moves to the rising section guide groove 903 and the loosening section guide groove 904, the bracket 5 as a whole will drive the tested transformer to move out of the positioning groove 4. At the same time, the positioning clamps 7 installed around the top of the bracket 5 through the torsion hinge will expand to the four sides to release the clamping of the transformer. At the same time, the outermost positioning clamp 7 will flip to the embedded groove 22, so that the outermost positioning clamp 7 is flush with the surface of the turntable 3, which is convenient for the inspection personnel to take the tested transformer and put the transformer to be inspected.

[0043] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A transformer testing and positioning device, comprising a support platform (1), characterized in that: The top of the support platform (1) is fixedly mounted with a support tube (2), the top of the support tube (2) is a closed structure, and the top of the support tube (2) is rotatably mounted with a turntable (3), the upper surface of the turntable (3) is equidistantly provided with four positioning grooves (4) in the circumferential direction, the inner wall of each positioning groove (4) is slidably provided with a bracket (5), the top of the bracket (5) is provided with two through holes (6), a lifting mechanism is installed between the bracket (5) and the support tube (2), the top of the bracket (5) is mounted with a positioning clamping mechanism, the positioning clamping mechanism includes four positioning splints (7) respectively hinged to the four sides of the top of the bracket (5) through a torsion hinge, the upper surface of the turntable (3) near the outermost positioning splint (7) is provided with an embedding groove (22), the lifting mechanism includes a guide column (8) fixedly mounted on the outer surface of the bracket (5) near the support tube (2), the outer periphery of the support tube (2) is provided with a guide groove ( 9), the guide column (8) is slidably mounted on the inner wall of the guide groove (9), the guide groove (9) includes a descending section guide groove (901), a clamping section guide groove (902), an ascending section guide groove (903) and a loosening section guide groove (904) which are connected to each other, and a connection mechanism and a cleaning mechanism are respectively installed on the upper surface of the support platform (1) near the clamping section guide groove (902), the connection mechanism performs a test operation on the transformer through an external test device, and the cleaning mechanism includes a connection mechanism rotatably mounted on the support platform (1) a turntable (17) on the upper surface, wherein a plurality of copper brushes (18) are evenly fixedly mounted on the upper surface of the turntable (17), a transmission assembly is mounted between the turntable (17) and the turntable (3), and the copper brushes (18) clean the oxide layer on the surface of the pin of the transformer passing thereover, and a stepper motor (16) is fixedly mounted on the top wall of the support cylinder (2), and the output end of the stepper motor (16) passes through the top of the support cylinder (2) and is fixedly mounted to the rotation center of the turntable (3); The transformer to be tested is placed on the bracket (5) which is raised to be flush with the upper surface of the turntable (3). The turntable (3) is rotated 90 degrees by the stepping motor (16), so that the guide column (8) installed on the outer side of the bracket (5) moves into the guide groove (901) of the descending section, so that the bracket (5) can drive the transformer to move downward, so that the positioning clamps (7) hinged around the top of the bracket (5) are closed together under the squeezing action of the side walls of the positioning groove (4), and the transformer placed on the bracket (5) is pushed to the middle position, so as to facilitate the positioning of the contact pin position of the transformer, and the transformer is clamped by the four clamps (7). Tightly fixed; when the guide column (8) installed on the bracket (5) moves to the ascending section guide groove (903) and the loosening section guide groove (904), the bracket (5) as a whole will drive the tested transformer to move out of the positioning groove (4), and at the same time, the positioning clamps (7) installed around the top of the bracket (5) through the torsion hinge will be spread out to the four sides, loosening the clamping of the transformer, and at the same time, the outermost positioning clamp (7) will be turned over to the embedded groove (22), so that the outermost positioning clamp (7) is flush with the surface of the turntable (3), which is convenient for the test personnel to take the tested transformer and put the transformer to be tested.

2. A transformer testing and positioning device according to claim 1, characterized in that: The connection mechanism comprises a plurality of spring rods (10) fixedly mounted on the upper surface of the support platform (1), a circuit board (11) being fixedly mounted on the telescopic ends of the plurality of spring rods (10), a positive conductive spring sheet (13) and a negative conductive spring sheet (14) being mounted on the upper surface of the circuit board (11), a data connector (23) being fixedly mounted on the outer surface of the support platform (1), the data connector (23) being electrically connected to the circuit board (11), and a pressing component being mounted between the bracket (5) and the circuit board (11).

3. A transformer testing and positioning device according to claim 2, characterized in that: The pressing assembly comprises a trapezoidal plate (12) fixedly mounted on the outer surfaces of both sides of the circuit board (11), and two pressing rods (15) are symmetrically fixedly mounted on the outer surfaces of both opposite sides of the bracket (5).

4. A transformer testing and positioning device according to claim 3, characterized in that: The transmission assembly comprises a transmission gear (19) fixedly mounted on the outer periphery of the turntable (17); a collar (20) is fixedly mounted on the lower surface of the turntable (3); a gear ring (21) is fixedly mounted on the inner wall of the collar (20); and the transmission gear (19) meshes with the gear ring (21).

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