Small transformer shaping and testing system

Abstract

The invention discloses a small transformer shaping and testing system which comprises a shaping mechanism, a multi-station testing mechanism and a single-station testing mechanism which are arranged in sequence. The transformer at the tail end of the shaping mechanism is clamped and conveyed to a positioning seat at the first station of the multi-station testing mechanism through a front carrying mechanism, and the transformer at the tail station of the multi-station testing mechanism is clamped and conveyed to the single-station testing mechanism through a rear carrying mechanism; and after the front carrying mechanism and the rear carrying mechanism finish clamping and conveying actions for preset times, the conveying mechanism carries out conveying for a preset distance once. The shaping and testing processes of the transformer are synchronously completed by a single production line, so that the production detection efficiency is improved, and the stable product quality is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of transformers, and particularly to a shaping and testing system for small transformers. Background Art

[0002] The mass production of small transformers is usually completed by combining an automated production line and manual labor. Among them, the shaping and testing processes of PIN pins are usually completed on separate production lines respectively, and in most shaping and testing links, a single person needs to operate multiple transformers one by one, unable to achieve batch shaping and detection. There are problems such as large floor space occupied by the production line, high labor input cost, low production efficiency, and unstable product quality. Summary of the Invention

[0003] Object of the Invention: In order to overcome the deficiencies existing in the prior art, the present invention provides a shaping and testing system for small transformers, which synchronously completes the shaping and testing processes of transformers on a single production line, improves the production and detection efficiency, and ensures the stable product quality.

[0004] Technical Solution: To achieve the above object, a shaping and testing system for small transformers of the present invention includes a shaping mechanism, a multi-station testing mechanism, and a single-station testing mechanism, which are arranged in sequence; the transformer at the end of the shaping mechanism is clamped and sent to the positioning seat at the first station of the multi-station testing mechanism by a front handling mechanism, and the transformer at the last station of the multi-station testing mechanism is clamped and sent to the single-station testing mechanism by a rear handling mechanism. The multi-station testing mechanism includes a conveying mechanism. After the front handling mechanism and the rear handling mechanism complete a preset number of clamping and sending actions, the conveying mechanism performs a conveying of a preset distance.

[0005] Further, the multi-station testing mechanism includes several functional stations, which are arranged in sequence. The first station and the last station of the multiple functional stations are respectively a loading station and an unloading station, and between the loading station and the unloading station are multiple testing stations;

[0006] The conveying mechanism includes several of the above-mentioned positioning seats. The conveying mechanism is used to drive the positioning seats thereon to stop at multiple functional stations in sequence, and enables the same number of positioning seats to stop corresponding to multiple functional stations simultaneously.

[0007] Further, the positioning seat includes a limiting groove on the upper end surface, and several positioning slots are provided on the bottom surface of the limiting groove. When multiple PIN pins of the transformer are correspondingly inserted into multiple positioning slots, the main body of the transformer is fitted relative to the limiting groove. The shaping mechanism includes a pin shaping mechanism, and the pin shaping mechanism is used to adjust multiple PIN pins to be parallel to each other.

[0008] Further, the pin aligning mechanism includes a vibrating table, on the tabletop of which there are a plurality of jacks. The relative positions of the centers of the plurality of jacks are the same as the relative positions of the roots of the plurality of PIN feet. The aperture of the jacks is larger than the radius of the PIN feet, and the vibrating table rotates and oscillates in the horizontal plane.

[0009] Further, the shaping mechanism further includes a PIN foot cutting mechanism, which is located before the pin aligning mechanism. The PIN foot cutting mechanism includes a conveyor belt, and on both sides of the conveyor belt there are respectively limiting gaps which are parallel to the conveyor belt. The width of the limiting gaps is set to be smaller than the radius of the jacks. When the transformer body is placed on the conveyor belt, the plurality of PIN feet are respectively located in the limiting gaps on both sides;

[0010] The limiting gaps are arranged to run through up and down. At the end of the conveyor belt close to the pin aligning mechanism, cutting tools are provided at the lower ports of the limiting gaps on both sides.

[0011] Further, the multi-station testing mechanism is provided with an upper pressing module, and the upper pressing module is correspondingly arranged to move up and down above the plurality of testing stations; the plurality of positioning slots are arranged in two rows along the moving direction of the positioning seat, and the two rows of positioning slots are respectively opened on the end faces on both sides of the moving direction. The two rows of PIN feet of the transformer are respectively inserted into the two rows of positioning slots;

[0012] The testing station includes testing blocks located on both sides of the moving direction of the positioning seat. On the end face of the testing block close to the positioning seat, there are testing electrodes. When the two testing blocks slide relatively close to and clamp the PIN feet to fit against the positioning slots, when clamped, the plurality of testing electrodes are in contact with the plurality of PIN feet correspondingly.

[0013] Further, the single-station testing mechanism includes an electrode base, on which there are a plurality of electrode plates corresponding to the plurality of PIN feet. An insulating plate is movably arranged above the electrode base, and a plurality of measuring holes are opened on the insulating plate. The plurality of electrode plates are respectively located in the plurality of measuring holes correspondingly;

[0014] When the transformer is placed on the insulating plate, the plurality of PIN feet are respectively inserted into the plurality of measuring holes correspondingly. The insulating plate moves so that the single-side hole wall of each measuring hole clamps the corresponding PIN foot with the electrode plate inside it, and the insulating plate is arranged to move along the arrangement direction of the two rows of PIN feet.

[0015] Further, a swing mounting plate is provided at the rear side of the single-station testing mechanism. The swing mounting plate includes an insertion layer on its upper surface. The insertion layer is for inserting and fixing multiple PIN feet of the transformer. A transfer positioning table is provided between the station testing mechanism and the swing mounting plate. Positioning holes corresponding to the multiple PIN feet are provided on the transfer positioning table, and the aperture of the positioning holes is adapted to the outer diameter of the PIN feet.

[0016] Further, the front handling mechanism includes two handling units, which are respectively movably arranged between any two of the PIN cutting mechanism, the pin aligning mechanism, and the loading station; the rear handling mechanism includes three handling units, which are respectively movably arranged between any two of the unloading station, the single-station testing mechanism, the transfer positioning table, and the swing mounting plate. Among them, the two handling units of the front handling mechanism perform clamping and conveying actions synchronously, and the three handling units of the rear handling mechanism perform clamping and conveying actions synchronously; the handling unit between the transfer positioning table and the swing mounting plate adopts an adsorption device.

[0017] Beneficial effects: A small transformer shaping and testing system of the present invention provides a positioning basis for subsequent automated testing through pre-shaping of the shaping mechanism. While completing multiple tests through subsequent multi-station testing mechanisms and single-station testing mechanisms, the shaping quality of PIN feet is further improved. The multi-station testing mechanism completes multiple synchronous tests on multiple transformers, and the single-station testing mechanism completes comprehensive tests on individual transformers, improving the testing efficiency while expanding the testing scope. Overall, it integrates the functions of the shaping and testing production lines, reduces the space occupied by the production line, and the automated equipment completes the orderly connection between each process, improving efficiency while reducing the labor input cost. During the testing, the shaping of the transformer pins is gradually completed, and the shaping of each link provides a positioning basis for the testing of the next link, which is closely linked, ensuring both the final forming quality of the transformer pins and the accuracy and reliability of the testing link. Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the overall structure of a small transformer shaping and testing system of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure of a shaping mechanism according to an embodiment of the present invention;

[0020] Figure 3 It is a schematic diagram of the structure and relative position relationship of a positioning seat and a testing block according to an embodiment of the present invention;

[0021] Figure 4 It is a schematic diagram of the structure of a single-station testing mechanism according to an embodiment of the present invention. Detailed Embodiments

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] As shown in the attached Figures 1-4 A small transformer shaping and testing system includes a shaping mechanism 1 for pre-shaping multiple PIN feet of the transformer.

[0024] A multi-station testing mechanism 2 is used to simultaneously perform multiple tests on multiple transformers to improve testing efficiency. It mainly conducts some test items with simple test methods, which can be completed by connecting simple test instruments, and the input cost of the test instruments is relatively small, and batch testing can be easily achieved, such as safety performance tests like withstand voltage test, turn-to-turn test, induction test, etc.

[0025] A single-station testing mechanism 3 is used to comprehensively test a single transformer. It mainly conducts some test items that need to be completed by connecting existing and relatively complex comprehensive testing equipment, such as comprehensive electrical performance tests. By using a one-by-one testing method, the equipment input cost can be reduced.

[0026] The above three are arranged in sequence to form a complete shaping / testing automated production line. The transformer at the end of the shaping mechanism 1 is clamped by the front handling mechanism 5 and sent to the positioning seat 41 at the first station of the multi-station testing mechanism 2. The transformer at the last station of the multi-station testing mechanism 2 is clamped by the rear handling mechanism 6 and sent to the single-station testing mechanism 3. The multi-station testing mechanism 2 includes a conveying mechanism 4. After the front handling mechanism 5 and the rear handling mechanism 6 complete a preset number of clamping and sending actions, the conveying mechanism 4 performs a preset distance of conveying. Through the coordinated actions of the front handling mechanism 5, the rear handling mechanism 6, and the conveying mechanism 4, the efficient operation of the entire shaping / testing automated production line is achieved. Among them, if the multi-station testing mechanism 2 simultaneously conducts the same test on n transformers, after the front handling mechanism 5 and the rear handling mechanism 6 complete n clamping and sending actions each, the conveying mechanism 4 performs a fixed-length conveying once. This fixed-length conveying is used to convey n transformers from the corresponding area of one test to the corresponding area of another test. Thus, the transformation process from pre-shaping multiple transformers one by one to batch multiple tests and then to one-by-one comprehensive tests is completed, making the speed of the transformers entering and leaving the middle batch processing area of the production line consistent, keeping the production line in an orderly operation state all the time, and thereby improving the overall operation efficiency.

[0027] The multi-station testing mechanism 2 includes several functional stations. The multiple functional stations are arranged. The first station and the last station of the multiple functional stations are respectively the loading station 21 and the unloading station 22. Between the loading station 21 and the unloading station 22 are multiple testing stations 23. Each testing station corresponds to a test item. The multiple functional stations are continuously adjacent to each other, which is convenient for the conveying mechanism to drive multiple transformers to correspond to the multiple functional stations one by one through fixed-length movement.

[0028] The conveying mechanism 4 includes a number of the positioning seats 41. The conveying mechanism is used to drive the positioning seats 41 thereon to stop at multiple function stations in sequence, and enables the same number of positioning seats 41 to correspond to and stop at multiple function stations simultaneously. The multiple positioning seats are also arranged closely adjacent to each other. The length of each function station in the conveying direction of the conveying mechanism is set as a multiple of the length dimension of the positioning seat. For example, if it is preset that three transformers are to be tested simultaneously at each test station, the length dimensions of all function stations are set as the length of three positioning seats. The conveying mechanism body can adopt a conveying structure that rotates in a vertical plane. Taking every three positioning seats as a group, after the three transformers on the three positioning seats at the unloading station 22 are all taken away, the three positioning seats sink synchronously to provide a forward movement space for the three positioning seats at the rear. While the three positioning seats with transformers at the rear move forward to the unloading station 22 to replace the three sunken positioning seats, the three sunken empty positioning seats are pushed along the track directly below and lifted from the loading station 21 to complete a fixed-length conveying.

[0029] Preferably, a pair of opposed optical fibers are respectively arranged on both sides of the unloading station 22 corresponding to the positions of the three positioning seats therein, for sensing the presence of a transformer at the corresponding position, so as to control the clamping action of the clamping unit at the corresponding position and the conveying action of the conveying mechanism.

[0030] The positioning seat 41 includes a limiting groove 411 on the upper end surface. A number of positioning slots 412 are arranged on the bottom surface of the limiting groove 411. When multiple PIN feet 10 of the transformer are correspondingly inserted into the multiple positioning slots 412, the main body of the transformer is fitted relative to the limiting groove 411. The shaping mechanism 1 includes a PIN foot shaping mechanism, and the PIN foot shaping mechanism is used to adjust the multiple PIN feet 10 to be parallel to each other. Among them, the size of the positioning slot 412 is slightly larger than the size of the PIN foot. Through the shaping effect of the pre-positioned PIN foot shaping mechanism, the multiple PIN feet that are roughly parallel are more likely to be inserted into the multiple positioning slots. Using the shaped PIN feet as the positioning basis, it is ensured that the installation position of the transformer relative to the positioning seat is accurate, so as to ensure that when the transformer moves to each test station along with the positioning seat, it can be accurately connected to the corresponding test instrument, thereby realizing automatic batch testing. Preferably, a strong magnet is also embedded at the bottom of the limiting groove 411 for adsorbing and fixing the transformer in the limiting groove 411, so as to ensure the stability of the transformer during loading and movement and prevent the product from being skewed.

[0031] Preferably, the pin aligning mechanism includes a vibrating table 11. A plurality of jacks 12 are provided on the tabletop of the vibrating table 11. The relative positions of the centers of the plurality of jacks 12 are consistent with the relative positions of the roots of the plurality of PIN feet 10. The aperture of the jack 12 is larger than the radius of the PIN foot 10. The vibrating table 11 rotates and oscillates in the horizontal plane. Through the elastic constraint around the vibrating table and the azimuth constraint of the vibrating table in the horizontal plane, when the vibrating table is horizontally impacted, its geometric center makes a high-speed circular motion in the horizontal plane, so that the entire vibrating table generates a high-frequency and small-amplitude oscillation effect. During the vibration process, the vibrating table will drive the transformer to rotate together. The PIN feet located in the jacks will gradually fit completely with the hole walls along with the vibration and move along the innermost circumference of the hole walls. Since the axial directions of the plurality of jacks are the same, when all the PIN feet are roughly in contact with the hole walls of the corresponding jacks, the plurality of PIN feet are almost in a parallel state.

[0032] Emit-receive optical fibers are arranged at the diagonal positions of the vibrating table 11, and their connection line just passes through the position where the transformer is placed at the center of the vibrating table. Before starting the vibrating table, it is detected whether the transformer is placed in place through the emit-receive optical fibers.

[0033] Further, the shaping mechanism 1 further includes a PIN foot cutting mechanism. The PIN foot cutting mechanism is located before the pin aligning mechanism. The PIN foot cutting mechanism includes a conveyor belt 13. The conveyor belt 13 adopts a linear vibration track to realize stable transformer conveying. A limiting lever is arranged at the end of the linear vibration track. When the transformer reaches the end of the track, the transformer touches the limiting lever, causing the lever to tilt. The other end of the lever touches an induction switch, thereby controlling the corresponding clamping unit to move down and clamp the product. If the PIN feet of the transformer product are too long, the excess length of the PIN feet will be cut off by a pneumatic shear according to the product requirements in the clamped and fixed state of the clamping unit. After the pin cutting is completed, the clamping unit will grab the transformer product and enter the next process. In addition, a baffle is arranged at a position of the linear vibration track that is one product position away from the limiting lever. By covering the upper part of the second product at the end of the track with the baffle, it is prevented that the product behind is taken away from the track or displaced when the first product is clamped.

[0034] Limiting gaps 14 are respectively arranged on both sides of the conveyor belt 13. The two limiting gaps 14 are parallel to the conveyor belt 13. The width of the limiting gap 14 is set to be smaller than the radius of the jack 12. When the transformer body is placed on the conveyor belt 13, the plurality of PIN feet 10 are respectively located in the two limiting gaps 14 on both sides. The conveyor belt is used to convey a plurality of transformers from the upper production line to the pin aligning mechanism. The placement of the transformer relative to the conveyor belt can be completed manually. Limited by the sizes of the limiting gaps on both sides, the PIN feet need to be roughly bent to a relatively parallel state before they can be placed on the conveyor belt.

[0035] Through the screening effect of the two-sided limiting gaps 14, it is ensured that for the transformers that can be placed on the conveyor belt, the skew degree of their PIN feet is not too large, so that under the subsequent automatic clamping and feeding operation, multiple PIN feet can be inserted into multiple jacks 12 simultaneously. Then, through the vibration of the PIN feet, the parallelism of multiple PIN feet is further optimized, so that multiple PIN feet can be inserted into multiple bit slots 412 simultaneously, meeting the positioning requirements. While achieving the purpose of shaping the PIN feet of the transformer, the continuity and stability of the automation process are ensured, providing a reliable basis for subsequent testing.

[0036] The limiting gaps 14 are arranged to penetrate up and down. At one end of the conveyor belt 13 close to the PIN foot aligning mechanism, cutting tools 15 are arranged at the lower ports of the two-sided limiting gaps 14. The cutting tools 15 can be used to trim the PIN feet of the transformers transported to the end. Specifically, the length of the PIN feet extending out of the lower ports of the limiting gaps 14 can be sensed by an optoelectronic sensor. If it is too long, the cutting tools 15 are driven to approach horizontally to cut off the excess length. This cutting process can be coordinated with the front handling mechanism 5. The clamping mechanism of the front handling mechanism 5 is used to clamp the transformer to fix its position relative to the conveyor belt, avoiding the movement of the transformer during cutting and ensuring the trimming quality of the PIN feet. In addition, when the cutting tools 15 perform the cutting action, the center position of the cutting tools 15 is always aligned with the root of the corresponding PIN foot. Therefore, when the two cutting edges are clamped, the PIN foot will definitely be driven to the vertical direction before cutting off the excess length. Thus, in two directions orthogonal to each other in the horizontal plane, the PIN foot is respectively restricted by the limiting gap 14 and corrected by the cutting tool 15, further ensuring that the skew degree of the PIN foot is within the range allowing it to be inserted into multiple jacks 12 simultaneously.

[0037] The multi-station testing mechanism 2 is provided with an upper pressing module, and the upper pressing module is correspondingly arranged above multiple testing stations 23 for lifting and lowering; on the basis of the positioning effect of the positioning slots 412 and the limiting effect of the limiting grooves 411 on the lower end of the transformer body, the transformer is fixed by pressing it with the upper pressing module in the limiting groove, and then the corresponding testing instruments are driven to approach and connect relatively, making the testing process more stable and reliable, capable of accurately measuring the data of each transformer and avoiding the problems of missed measurement and wrong measurement.

[0038] A plurality of the positioning slots 412 are arranged in two rows along the moving direction of the positioning seat 41, and the two rows of the positioning slots 412 are respectively opened on the end faces on both sides of the moving direction. The two rows of PIN feet of the transformer are respectively inserted into the two rows of the positioning slots 412. Usually, the PIN feet on the transformer are arranged in two rows parallel to each other, and the positioning slots 412 are correspondingly arranged according to the arrangement mode of the PIN feet of the measured transformer. By arranging them on both sides of the positioning seat, while the positioning is completed through the PIN feet, the PIN feet are exposed on both sides of the positioning seat, so as to provide sufficient space for the test instrument to be connected to the PIN feet.

[0039] The test station 23 includes test blocks 231 located on both sides of the moving direction of the positioning seat 41. Test electrodes are arranged on the end faces of the test blocks 231 close to the positioning seat 41. The two test blocks 231 slide relatively close and clamp the PIN feet 10 to be in fit with the positioning slots 412. When clamping, a plurality of the test electrodes are in corresponding contact with a plurality of the PIN feet 10. The test electrodes are connected to the test equipment through wires behind the test blocks 231. Each test block 231 is controlled and driven by a separate cylinder. When there is a poor contact in the product, the corresponding cylinder can be separately controlled to reset and retry clamping for testing.

[0040] According to the requirements of the test items, the position of the test electrodes on the test blocks can be selectively set, so as to realize the electrical contact connection with the corresponding PIN feet when clamping, and achieve the purpose of instrument testing. In addition, the test blocks press the PIN feet in the positioning slots 412, realizing further shaping of the two rows of PIN feet in the direction of their distance. After being clamped by multiple test stations, the shaping effect is better.

[0041] The single-station testing mechanism 3 includes an electrode base. A plurality of electrode plates 31 are provided on the electrode base corresponding to the plurality of PIN feet 10. An insulating plate 32 is movably arranged above the electrode base. A plurality of measuring holes 33 are formed in the insulating plate 32, and the plurality of electrode plates 31 are respectively located in the plurality of measuring holes 33. The plurality of electrode plates 31 are electrically connected to the test terminals of an existing comprehensive tester. During testing, the transformer unit is clamped and placed on the insulating plate 32 by the rear handling mechanism 6. When the transformer is placed on the insulating plate 32, the plurality of PIN feet 10 are respectively inserted into the plurality of measuring holes 33. Preferably, the measuring holes 33 are elongated strip-shaped holes. The electrode plate is attached to one side of the long groove wall. The plurality of electrode plates and the corresponding measuring holes are all attached to the same side of the long groove wall, and the distance between the proximal ends of the two rows of measuring holes 33 corresponding to the two rows of PIN feet 10 is the same as the root distance between the two rows of PIN feet 10. Therefore, when the plurality of PIN feet are inserted into the plurality of measuring holes simultaneously, it plays a limiting role in the direction of the distance between the two rows of PIN feet for the transformer, so that the transformer can only move in the arrangement direction of the PIN feet. On this basis, the insulating plate 32 is movably arranged along the arrangement direction of the two rows of PIN feet 10. By moving the insulating plate 32, the single-side hole wall of each measuring hole 33 can clamp the corresponding PIN foot 10 with the electrode plate 31 inside it. While realizing the clamping of the PIN foot and the contact with the corresponding electrode plate to complete the test, through the clamping action of the measuring hole wall and the electrode plate, the further shaping of the two rows of PIN feet in their arrangement direction is further realized.

[0042] After further pressing and shaping by the multi-station testing mechanism 2 and the single-station testing mechanism 3 in two directions orthogonal to each other in the horizontal plane, the plurality of PIN feet on the transformer are completely parallel to each other and perpendicular to one side end face of the transformer. This ensures the forming quality of the PIN feet and ensures that it is easier to accurately insert them when installing relative to other electrical components.

[0043] A swing tray 7 is arranged at the rear of the single-station testing mechanism 3. The swing tray 7 includes an insertion layer on its upper surface. The insertion layer is for inserting and fixing the plurality of PIN feet of the transformer. The insertion layer can adopt a foam board. A plurality of transformers are arranged and inserted on the same foam board, which is convenient for arranging and sorting the shaped and tested transformers. After the PIN feet are inserted into the foam board, in addition to playing a fixing role for the transformer, it also plays a role in protecting the shape of the PIN feet.

[0044] A transfer and positioning table 8 is arranged between the station testing mechanism 3 and the placement tray 7. The transfer and positioning table 8 is provided with positioning holes corresponding to a plurality of the PIN feet 10, and the aperture of the positioning holes is adapted to the outer diameter of the PIN feet 10. A laser marking machine can also be correspondingly arranged at the transfer and positioning table 8. Through the positioning function of the positioning holes for the transformer, the marking position can be ensured to be accurate. By arranging the transfer and positioning table 8 on the flipping device, the transformer can be flipped to make the marking surface correspond to the laser marking machine according to the position to be marked.

[0045] The front handling mechanism 5 includes two handling units, which are respectively movably arranged between any two of the PIN cutting mechanism, the pin straightening mechanism and the loading station 21; the rear handling mechanism 6 includes three handling units, which are respectively movably arranged between any two of the unloading station 22, the single-station testing mechanism 3, the transfer and positioning table 8 and the placement tray 7. The handling unit between the transfer and positioning table 8 and the placement tray 7 adopts an adsorption device.

[0046] After the shaping effects of the shaping mechanism 1, the multi-station testing mechanism 2 and the single-station testing mechanism 3, on the basis of ensuring the shaping quality of the PIN feet, by first clamping the transformer to be inserted into the transfer and positioning table 8, and then sucking the transformer from the transfer and positioning table 8 through the adsorption-type handling unit, it can ensure the adsorption of the center position of the upper end surface of the transformer. Therefore, when inserting and placing the trays, the transformers can be inserted closely one by one, improving the compactness of the tray placement and making full use of the tray space.

[0047] Among them, the two handling units of the front handling mechanism 5 execute the clamping and feeding actions synchronously, and the three handling units of the rear handling mechanism 6 execute the clamping and feeding actions synchronously; among them, the clamping and feeding action includes two actions of clamping and transporting, that is, the actions from clamping to transporting start synchronously. Due to the difference in the clamping and feeding distances, the specific transporting speeds and arrival times are inconsistent. To ensure the consistency of the front and rear actions, when each handling unit reaches the rear position, it immediately returns to the reset position. When multiple handling units of the same handling mechanism are all reset to the front position, the clamping and feeding actions are executed synchronously, and so on in turn.

[0048] Based on the above production line layout, only a defective product recycling station needs to be arranged at the rear of the multi-station testing mechanism 2 and the single-station testing mechanism 3. The defective products with unqualified test results are put into the recycling box during the process of being clamped and sent to the next link by the clamping and feeding unit. Since the transformers have undergone step-by-step shaping in multiple links, it can be ensured that the shape quality of the pins of the finally produced transformers meets the production requirements. Therefore, only the products with unqualified test results need to be removed, comprehensively improving the production test efficiency and product quality of the products.

[0049] The above description is only a preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the above principles of the present invention, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present invention.

Claims

1. A small transformer shaping and testing system, characterized in that: The invention comprises a shaping mechanism (1), a multi-station testing mechanism (2) and a single-station testing mechanism (3), which are arranged in sequence; the transformer at the end of the shaping mechanism (1) is clamped and transported to a positioning seat (41) at the first station of the multi-station testing mechanism (2) by a front transport mechanism (5); the transformer at the last station of the multi-station testing mechanism (2) is clamped and transported to the single-station testing mechanism (3) by a rear transport mechanism (6); the multi-station testing mechanism (2) comprises a conveying mechanism (4); after the front transport mechanism (5) and the rear transport mechanism (6) complete a preset number of clamping and transporting actions, the conveying mechanism (4) performs a conveying operation over a preset distance.

2. A small transformer shaping and testing system according to claim 1, characterized in that: The multi-station testing mechanism (2) comprises a plurality of functional stations, wherein the plurality of functional stations are arranged in an array, wherein the first station and the last station of the plurality of functional stations are respectively a loading station (21) and a unloading station (22), and between the loading station (21) and the unloading station (22) are a plurality of testing stations (23); The conveying mechanism (4) comprises a plurality of positioning seats (41), and the conveying mechanism is used to drive the positioning seats (41) thereon to stop at a plurality of the functional stations in sequence, and to enable the plurality of the functional stations to simultaneously stop the same number of positioning seats (41).

3. A small transformer shaping and testing system according to claim 2, characterized in that: The positioning seat (41) comprises a limiting groove (411) located on the upper end surface, and a plurality of positioning slots (412) are arranged on the bottom surface of the limiting groove (411). When a plurality of PIN pins (10) of the transformer are correspondingly inserted into a plurality of the positioning slots (412), the main body of the transformer is engaged with the limiting groove (411), and the shaping mechanism (1) comprises a pin adjustment mechanism, and the pin adjustment mechanism is used to adjust the plurality of PIN pins (10) to be parallel to each other.

4. A small transformer shaping and testing system according to claim 3, characterized in that: The foot adjustment mechanism comprises a vibration table (11), a plurality of plug holes (12) are arranged on the table surface of the vibration table (11), the relative positions of the centers of the plurality of plug holes (12) are consistent with the relative positions of the roots of the plurality of PIN pins (10), the hole diameter of the plug holes (12) is larger than the radius of the PIN pins (10), and the vibration table (11) rotates and oscillates in a horizontal plane.

5. A small transformer shaping and testing system according to claim 4, characterized in that: The shaping mechanism (1) further comprises a PIN foot cutting mechanism, the PIN foot cutting mechanism being located before the foot shaping mechanism, the PIN foot cutting mechanism comprising a conveyor belt (13), two sides of the conveyor belt (13) are respectively provided with limited gaps (14), the limited gaps (14) on both sides are parallel to the conveyor belt (13), the width of the limited gaps (14) is smaller than the radius of the jack (12), and when the transformer body is placed on the conveyor belt (13), the plurality of PIN feet (10) are respectively located in the limited gaps (14) on both sides; The limiting gap (14) is arranged to be continuous from top to bottom, and at one end of the conveyor belt (13) close to the leg trimming mechanism, leg trimming tools (15) are arranged at the lower ends of the limiting gap (14) on both sides.

6. A small transformer shaping and testing system according to claim 5, characterized in that: The multi-station test mechanism (2) is provided with an upper pressure module, and the upper pressure module is correspondingly raised and lowered above the plurality of test stations (23); the plurality of positioning slots (412) are arranged in two rows along the moving direction of the positioning seat (41), and the two rows of positioning slots (412) are respectively opened on the end surfaces on both sides of the moving direction, and the two rows of PIN pins of the transformer are respectively correspondingly inserted into the two rows of positioning slots (412); The test station (23) comprises test blocks (231) located on both sides of the moving direction of the positioning seat (41); the end surface of the test block (231) close to the positioning seat (41) is provided with test electrodes; the test blocks (231) on both sides slide relatively close to and clamp the PIN pin (10) to fit relative to the positioning slot (412); when clamped, a plurality of the test electrodes contact a plurality of the PIN pins (10) correspondingly.

7. A small transformer shaping and testing system according to claim 6, characterized in that: The single-station test mechanism (3) comprises an electrode base, a plurality of electrode sheets (31) are arranged on the electrode base corresponding to the plurality of PIN pins (10), an insulating plate (32) is movably arranged above the electrode base, a plurality of measuring holes (33) are opened on the insulating plate (32), and the plurality of electrode sheets (31) are respectively located in the plurality of measuring holes (33); When the transformer is placed on the insulating plate (32), the plurality of PIN pins (10) are respectively inserted into the plurality of measuring holes (33), and the insulating plate (32) moves so that the single-side hole wall of each measuring hole (33) and the electrode sheet (31) therein clamp the corresponding PIN pin (10), and the insulating plate (32) is moved along the arrangement direction of the two rows of PIN pins (10).

8. A small transformer shaping and testing system according to claim 7, characterized in that: A mounting plate (7) is arranged at the rear side of the single-station test mechanism (3), the mounting plate (7) comprising an insertion layer on the upper surface, the insertion layer being used for inserting and fixing a plurality of PIN pins of the transformer, a transfer positioning platform (8) is arranged between the station test mechanism (3) and the mounting plate (7), the transfer positioning platform (8) being provided with positioning holes corresponding to the plurality of PIN pins (10), the aperture of the positioning hole being adapted to the outer diameter of the PIN pin (10).

9. A small transformer shaping and testing system according to claim 8, characterized in that: The front transport mechanism (5) includes two transport units, which are respectively arranged between the pin cutting mechanism, the pin straightening mechanism and the loading station (21); the rear transport mechanism (6) includes three transport units, which are respectively arranged between the unloading station (22), the single station testing mechanism (3), the transfer positioning platform (8) and the placement plate (7), wherein the two transport units of the front transport mechanism (5) perform the clamping and conveying action synchronously, and the three transport units of the rear transport mechanism (6) perform the clamping and conveying action synchronously; the transport units between the transfer positioning platform (8) and the placement plate (7) adopt an adsorption device.

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