Dual-track testing, marking and sorting equipment for rectifier bridge

Abstract

The invention discloses a double-track test marking and sorting device for a rectifier bridge, comprising a workbench, on which a storage device, a conveying device, a testing device, a sorting device and a control device electrically connected to the above-mentioned devices for controlling the operation of each device are arranged according to the test direction, the conveying device comprises a longitudinal conveying track belt and a first transport seat, the transport seat is arranged on the longitudinal conveying track belt, a shell frame is fixedly connected above the transport seat, an inlet is arranged on one side of the outer peripheral side wall of the shell frame, an outlet is arranged on one side, a first motor is connected to the rear end of the shell frame, an output shaft of the first motor passes through the shell frame and is connected to an inner circular frame, the side edges of the inner circular frame are evenly provided with clamps, and the inner circular frame is rotatably arranged inside the shell frame. The advantages of the invention are: the use of the shell frame, the inner circular frame and the clamps can load multiple material tubes at one time, thereby increasing the test and sorting efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of bridge pile testing and sorting devices, and in particular relates to a double-track testing, marking and sorting device for a rectifier bridge. Background Art

[0002] The bridge rectifier product is made of four rectifier silicon chips connected in a bridge type and encapsulated with insulating plastic. The existing bridge rectifier test and sorting machine is composed of a feeding mechanism, a single track, a sorting mechanism, a testing mechanism, an electrical system and an interface display.

[0003] Generally, rectifier bridges are fed by a material pipe. The material pipe adopts a plastic pipe structure with an outer circle and an inner square. The rectifier bridge is placed inside the material pipe. The Chinese invention patent with application number CN202020041394.6 discloses a double-track test, marking and sorting equipment for rectifier bridges, including a frame. The surface of the frame is respectively provided with a feeding mechanism, a testing mechanism, a marking mechanism and a sorting mechanism from top to bottom. A conveyor belt is arranged inside the feeding mechanism. A right limit plate is fixedly arranged on one side of the conveyor belt. The right limit plate is fixedly connected to a cylinder on the side away from the conveyor belt. A left limit plate is fixedly arranged on the other side of the conveyor belt. The right limit plate and the left limit plate are both fixedly set as L-shaped plates, the surface where one end of the left limit plate is located is the same as the surface where one end of the right limit plate is located, and the other end of the left limit plate is correspondingly provided with a guide rail, and two guide rails are fixedly provided, and a placing part is provided at the upper position of one side of the conveyor belt. Its advantage is that the placing part can be provided with multiple placing grooves to realize automatic working operation, and the material pipe is automatically replaced under the action of the conveyor belt, reducing manpower labor. Its disadvantage is that since the surface of the frame is a slope structure, there is no protection mechanism on the surface of the placing groove. When the conveyor belt moves quickly, the material pipe is easily thrown out and the stability is not good. Summary of the invention

[0004] To solve the above problems, the present invention provides the following technical solutions: a dual-track test marking and sorting equipment for a rectifier bridge, comprising a workbench, on which a storage device, a conveying device, a testing device, a sorting device and a control device electrically connected to the above devices for controlling the operation of each device are arranged according to the test direction, the conveying device comprises a longitudinal conveying rail and a first transport seat, the first transport seat is arranged on the longitudinal conveying rail, a shell frame is fixedly connected above the first transport seat, a test hole is arranged at the front end of the shell frame, an inlet is arranged on one side of the outer peripheral side wall of the shell frame, and an outlet is arranged on the other side, the rear end of the shell frame is connected to a first motor, the output shaft of the first motor extends through the shell frame to the interior and is connected to an inner circular frame, the sides of the inner circular frame are evenly provided with clamps, and the inner circular frame is rotatably arranged inside the shell frame.

[0005] Furthermore, the testing device includes a first transverse conveying rail and a second transport seat, the second transport seat is arranged on the first transverse conveying rail, a second motor is loaded above the second transport seat, the output shaft of the second motor is connected to a fixed plate, a test tube is connected to the fixed plate, the other end of the test tube is connected to a test board, a test head and a laser marking head are installed on the test board, a test circuit is installed in the test tube, and the test circuit is connected to the test head.

[0006] Furthermore, a laser positioning transmitter is installed on the first transport base, and a laser positioning receiver is installed on the second transport base.

[0007] Furthermore, the laser positioning transmitter comprises a first positioning transmitter and a second positioning transmitter, and the first positioning transmitter is offset by a certain angle compared to the first positioning transmitter.

[0008] Further, the first positioning transmitter is offset at an angle of 10-15° compared to the first positioning transmitter.

[0009] Furthermore, the sorting device includes a second transverse conveying track and a collecting box, the collecting box is arranged on the second transverse conveying track, and the collecting box includes a qualified product placement room and a unqualified product placement room.

[0010] Furthermore, a partition is provided between the qualified product placement room and the unqualified product placement room, a push plate is provided at the bottom of the qualified product placement room, the bottom of the qualified product placement room is composed of several push plates, the bottom of each push plate is connected to a telescopic motor, and several color sensors are provided on the side walls of the qualified product placement room.

[0011] Furthermore, the storage device includes two symmetrical L-shaped limit plates on the left and right, a cylinder is provided at the front end of the L-shaped limit plate, an output end of the cylinder faces the middle position of the two L-shaped limit plates, and a push claw is connected to the output end of the cylinder.

[0012] Furthermore, the workbench is arranged in a trapezoidal shape, the storage device is arranged on the top of the workbench, the conveying device, the testing device and the sorting device are arranged on the inclined surface of the workbench, and two of the storage device, the conveying device, the testing device and the sorting device are each provided and are symmetrical to each other on the left and right.

[0013] Furthermore, the control device is a computer, and the computer controls the operation of each device through a program.

[0014] The advantages of the present invention are:

[0015] 1. The inner frame rotates and the shell frame cooperates. When the material pipe enters the clamp on the inner frame, the inner frame is rotated to rotate the material pipe into the shell frame, thereby achieving complete protection for the material pipe, preventing it from falling off and increasing the stability of the conveying device.

[0016] 2. In this application, the laser marking head can mark the material tube of the unqualified rectifier bridge with a black mark. The collection box is provided with a color sensor, through which it can be understood which products are unqualified. The unqualified products can be pushed to the unqualified area through the telescopic motor to realize automatic sorting. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the side structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the internal structure of the shell frame of the present invention.

[0019] Figure 3 It is a schematic diagram of the external structure of the shell frame of the present invention.

[0020] Figure 4 It is a schematic diagram of the structure of the testing device of the present invention.

[0021] Figure 5 It is a schematic diagram of the surface structure of the test board of the present invention.

[0022] Figure 6 This is a schematic diagram of the surface structure of a workbench according to Example 1 of the present invention.

[0023] Figure 7 This is a schematic diagram of the surface structure of a workbench according to Example 2 of the present invention.

[0024] Figure 8 This is a structural diagram of the collection box of Example 2 of the present invention.

[0025] In the figure: 1, workbench; 2, storage device; 3, conveying device; 4, testing device; 5, sorting device; 6, longitudinal conveying track; 7, first transport seat; 8, shell frame; 9, test hole; 10, import; 11, export; 12, first motor; 13, inner round frame; 14, clamp; 15, first transverse conveying track; 16, second transport seat; 17, second motor; 18, fixing plate; 19, test tube; 20, test plate; 21, test head; 22, laser marking head; 23, first positioning transmitter; 24, second positioning transmitter; 25, laser positioning receiver; 26, second transverse conveying track; 27, qualified product placement room; 28, unqualified product placement room; 29, partition; 30, push plate; 31, telescopic motor; 32, color sensor; 33, L-shaped limit plate; 34, cylinder; 35, push claw. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0027] See also Figure 1-6A double-track test marking and sorting device for a rectifier bridge comprises a workbench 1, on which a storage device 2, a conveying device 3, a testing device 4, a sorting device 5 and a control device electrically connected to the above-mentioned devices for controlling the operation of each device are arranged according to the test direction. The workbench 1 is arranged in a trapezoidal shape, the storage device 2 is arranged at a flat position on the top of the workbench 1, the conveying device 3, the testing device 4 and the sorting device 5 are arranged on the inclined surface of the workbench 1, the storage device 2 comprises two symmetrical L-shaped limit plates 33 on the left and right, a plurality of material tubes are stored between the two L-shaped limit plates 33, a cylinder 34 is arranged at the front end of the L-shaped limit plate 33, the output end of the cylinder 34 faces the middle position of the two L-shaped limit plates 33, and the output end of the cylinder 34 is connected to The push claw 35 can push the material pipe to move so that the material pipe enters the conveying device 3. The conveying device 3 includes a longitudinal conveying track 6 and a first transport seat 7. The first transport seat 7 is arranged on the longitudinal conveying track 6. The conveying track can be in the form of a guide rail or a conveyor belt. Any transmission method in the prior art is acceptable. In this embodiment, a conveyor belt is adopted. The first transport seat 7 is fixedly placed on the conveyor belt and is driven to move by the conveyor belt. A shell frame 8 is fixedly connected to the top of the first transport seat 7. The outer shape of the shell frame 8 can be square, circular or other shapes. In this embodiment, a circular shape is selected, and there is a circular inner cavity inside it. A test hole 9 is provided at the front end of the shell frame 8, and a first motor 12 is connected to the rear end of the shell frame 8. The output shaft of the first motor passes through The shell frame 8 extends into the circular inner cavity and is connected to the inner circular frame 13. The sides of the inner circular frame 13 are evenly provided with clamps 14. The clamps 14 are U-shaped and made of soft or elastic materials such as plastic. The inner circular frame 13 is rotatably arranged in the circular inner cavity of the shell frame 8. An inlet 10 is provided on one side of the outer peripheral side wall of the shell frame 8, and an outlet 11 is provided on the other side. The cylinder 34 drives the push claw 35 to push the material tube stored in the L-shaped limit plate 33 to move. The material tube enters the clamp 14 of the inner circular frame 13 through the inlet 10 on the shell frame 8. The clamp 14 clamps the material tube. At the same time, the inner circular frame 13 is driven to rotate by the first motor 12, so that the clamp 14 clamping the first material tube moves to a position in the shell frame 8 away from the inlet 10. Specifically, the inner circular frame 13 Six clamps 14 are evenly arranged on the upper surface, and each clamp 14 is spaced 60° apart. The first motor 12 adopts a stepping motor, which can accurately control the rotation angle. After the clamp 14 corresponding to the inlet 10 clamps the first material tube, the first motor 12 is controlled to rotate and drive the inner circular frame 13 to rotate 60°, so that the clamp 14 clamping the first material tube rotates to a position away from the inlet 10 in the shell frame 8, and then the next clamp 14 moves to the inlet 10 to clamp the next material tube. This embodiment can transport three material tubes at a time. After clamping, if the inner circular frame 13 rotates another 60°, the clamp 14 clamping the first material tube can enter a position opposite to the outlet 11, and the shell frame 8 can be transported to the test position through the transport seat.

[0028] like Figure 4, 6 As shown, the testing device 4 includes a first transverse conveying rail 15 and a second transport seat 16. The second transport seat 16 is arranged on the first transverse conveying rail 15. A second motor 17 is loaded above the second transport seat 16. The output shaft of the second motor 17 is connected to a fixed plate 18. A test tube 19 is connected to the fixed plate 18. The other end of the test tube 19 is connected to a test board 20. A test head 21 and a laser marking head 22 are installed on the test board 20. A test circuit is installed in the test tube 19. The test circuit is connected to the test head 21. The first transverse conveying rail is vertically arranged with the longitudinal conveying rail 6. A laser positioning transmitter is installed on the first transport seat 7. A laser positioning receiver 25 is installed on the second transport seat 16. When the first transport seat 7 passes the second transport seat 16, the laser positioning receiver 25 receives the laser signal and sends the signal to the control device. The control device is a computer. The computer stops the movement of the longitudinal conveying rail 6 through a program. The laser positioning confirms the positions of the two. After the confirmation is completed, the second transport seat 16 drives the test board 20 to approach the shell frame 8. The number of test heads 21 on the test board 20 is the same as the number of material tubes transported by the shell frame 8. The shell frame 8 is provided with a test hole 9 on one side relative to the test board 20. The diameter of the test hole 9 is larger than the test head 21, so that the test head 21 can contact the rectifier bridge in the material tube. The diameter of the test hole 9 is smaller than the material tube to prevent the material tube from falling off from the test hole 9. The three test heads 21 pass through the test hole 9 under the movement of the second transport seat 16 and contact the pins of the rectifier bridge in the material tube. The rectifier bridge is tested through the test circuit. After the test is completed, the second motor 17 is rotated to align the laser marking head 22 on the test board 20 with the material tube. If the rectifier bridge in the material tube is an unqualified product, the material tube is marked by the laser marking head 22. If it is a qualified product, it is not marked. After marking, the test board 20 is driven to reset by the second motor 17. This embodiment can test multiple material tubes at the same time.

[0029] The laser positioning transmitter includes a first positioning transmitter 23 and a second positioning transmitter 24. The first positioning transmitter 23 is offset by a certain angle compared to the first positioning transmitter 23. After receiving the first positioning transmitter 23, the laser positioning receiver 25 sends a signal to stop the movement of the longitudinal conveying track 6. After receiving the laser signal emitted by the second positioning transmitter 24, the laser positioning receiver 25 is used to confirm that the center points of the first transport seat 7 and the second transport seat 16 are on the same axis. However, due to inertia and time difference factors, when the laser positioning receiver 25 receives the signal emitted by the first positioning transmitter 23, it transmits the signal to the control device. When the control device controls the longitudinal conveying track 6 to stop moving, the longitudinal conveying track 6 will inevitably continue to move for a distance, which will easily cause a distance difference between the first transport seat 7 and the second transport seat 16. Therefore, the first positioning transmitter 23 is deliberately set to emit a laser signal in advance to ensure that after the longitudinal conveying track 6 stops, there will be no large offset between the first transport seat 7 and the second transport seat 16. In addition to the offset at a certain angle, the two positioning transmitters can also be set at a certain distance. After experimental testing, when the offset angle setting method is adopted, the angle range of the first positioning transmitter 23 in this embodiment is preferably 10-15° compared to the first positioning transmitter 23. Within this range, when the longitudinal conveyor belt 6 stops moving, the relative offset distance between the first transport seat 7 and the second transport seat 16 will not affect the test. The sorting device 5 includes a second transverse conveyor belt 26 and a collection box. The collection box is arranged on the second transverse conveyor belt 26. The collection box includes a qualified product placement room 27 and a non-qualified product placement room 28. Figure 6 In this embodiment, the qualified product placement room 27 and the unqualified product placement room 28 are arranged on the left and right sides. The second transverse conveying rail 26 can drive the collection box to move left and right. The first motor 12 drives the inner frame 13 to rotate 60°, so that the clamp 14 holding the first material tube enters the position opposite to the outlet 11. The outlet 11 is arranged downward. At the same time, since the conveying device 3 is located on the inclined surface of the workbench 1, the material tube will fall into the collection box under the action of gravity. According to the mark of the material tube, the corresponding placement room is moved to the corresponding position in advance, waiting for the material tube to fall. This embodiment adopts a structure in which the inner frame 13 rotates and the shell frame 8 cooperates. When the material tube enters the clamp 14 on the inner frame 13, the inner frame 13 is rotated to rotate the material tube to the inside of the shell frame 8, so that the material tube can be fully protected, so that the material tube will not fall off, and the stability of the conveying device 3 is increased. The storage device 2, the conveying device 3, the testing device 4, and the sorting device 5 are all provided with two and are symmetrical to each other. Double-track conveying can improve the detection efficiency. The control device is a computer, which controls the operation of each device through a program.

[0030] Example 2

[0031] See also Figure 1-8, a double-track test marking and sorting equipment for a rectifier bridge, this embodiment has the same parts as embodiment 1, the difference lies in the different settings of the collection box, a partition 29 is provided between the qualified product placement room 27 and the unqualified product placement room 28, a push plate 30 is provided at the bottom of the qualified product placement room 27, the bottom of the qualified product placement room 27 is composed of a plurality of push plates 30, each push plate 30 is connected to a telescopic motor 31 at the bottom, a plurality of color sensors 32 are provided on the side wall of the qualified product placement room 27, the laser marking head 22 will mark the unqualified product material tube with a black mark when marking the feed tube, and the material tube will fall into the collection box after passing through the conveying device 3, such as Figure 7 , 8 As shown, the collecting box in this embodiment is arranged front and back, and the qualified product placement room 27 and the unqualified product placement room 28 are arranged front and back. The qualified product placement room 27 is located at the upper position of the inclined surface of the test workbench 1. When the material tube falls, it will first fall into the qualified product placement room 27. A plurality of color sensors 32 are arranged on the side wall of the qualified product placement room 27 to detect the material tube with a black mark. The telescopic motor 31 at the bottom of the color sensor 32 drives the push plate 30 to move upward, and the black-marked material tube falling into the qualified product placement room 27 can be pushed up. Due to the inclined surface, the collecting box is also in an inclined state. When the top When the height of the material tube pushed out by the plate exceeds the baffle, the material tube will fall into the unqualified placement room. A large number of color sensors 32 are arranged to form multiple vertical columns. The height of each vertical column is the same as the baffle. In the case of a large number of qualified material tubes piled up, the unqualified material tubes can be identified and ejected after they fall in. If the color sensor of any vertical column identifies black, the push plate 30 corresponding to the vertical column will be ejected until the color sensor 32 of the vertical column can no longer identify black. When the collection box is tilted, the unqualified products will gradually fall into the unqualified product placement room 28. This embodiment can complete the sorting work without moving the entire collection box.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dual-track testing, marking and sorting device for a rectifier bridge, comprising a workbench (1), wherein the workbench (1) is provided with a storage device (2), a conveying device (3), a testing device (4), a sorting device (5) and a control device electrically connected to the above-mentioned devices for controlling the operation of the devices in accordance with the testing direction, characterized in that: The conveying device (3) comprises a longitudinal conveying rail (6) and a first transport seat (7), wherein the first transport seat (7) is arranged on the longitudinal conveying rail (6), a housing (8) is fixedly connected to the top of the first transport seat (7), a testing hole (9) is provided at the front end of the housing (8), an inlet (10) is provided on one side of the outer peripheral side wall of the housing (8), and an outlet (11) is provided on the other side, a first motor (12) is connected to the rear end of the housing (8), an output shaft of the first motor (12) passes through the housing (8) and extends to the inside and is connected to an inner circular frame (13), the side edges of the inner circular frame (13) are evenly provided with clamps (14), and the inner circular frame (13) is rotatably arranged inside the housing (8), the sorting device (5) comprises a second transverse conveying track (26) and a collecting box, the collecting box is arranged on the second transverse conveying track (26), the collecting box comprises a qualified product placement room (27) and a non-qualified product placement room (28), a partition (29) is arranged between the qualified product placement room (27) and the non-qualified product placement room (28), a push plate (30) is arranged at the bottom of the qualified product placement room (27), the bottom of the qualified product placement room (27) is composed of a plurality of push plates (30), the bottom of each push plate (30) is connected to a telescopic motor (31), and the side of the qualified product placement room (27) A plurality of color sensors (32) are arranged on the wall, the storage device (2) comprises two symmetrical L-shaped limit plates (33) on the left and right, a cylinder (34) is arranged at the front end of the L-shaped limit plate (33), the output end of the cylinder (34) faces the middle position of the two L-shaped limit plates (33), the output end of the cylinder (34) is connected to a push claw (35), the test device (4) comprises a first transverse conveying rail (15) and a second transport seat (16), the second transport seat (16) is arranged on the first transverse conveying rail (15), a second motor (17) is loaded above the second transport seat (16), and the output of the second motor (17) The shaft is connected to a fixing plate (18), a test tube (19) is connected to the fixing plate (18), the other end of the test tube (19) is connected to a test plate (20), a test head (21) and a laser marking head (22) are installed on the test plate (20), a test circuit is installed in the test tube (19), the test circuit is connected to the test head (21), the conveying device (3), the testing device (4) and the sorting device (5) are arranged on the inclined surface of the workbench (1), the qualified product placement room (27) and the unqualified product placement room (28) are arranged front and back, and the qualified product placement room (27) is located at the upper position of the inclined surface of the test workbench (1).

2. The dual-track testing, marking and sorting equipment for rectifier bridge according to claim 1 is characterized in that: A laser positioning transmitter is installed on the first transport base (7), and a laser positioning receiver (25) is installed on the second transport base (16).

3. The dual-track testing, marking and sorting equipment for rectifier bridge according to claim 2 is characterized in that: The laser positioning transmitter comprises a first positioning transmitter (23) and a second positioning transmitter (24), wherein the first positioning transmitter (23) is offset by a certain angle compared to the second positioning transmitter (24).

4. The dual-track testing, marking and sorting equipment for rectifier bridge according to claim 3 is characterized in that: The first positioning transmitter (23) is offset at an angle of 10-15° compared to the first positioning transmitter (23).

5. The dual-track testing, marking and sorting equipment for rectifier bridge according to claim 4 is characterized in that: The workbench (1) is arranged in a trapezoidal shape, the storage device (2) is arranged on the top of the workbench (1), and two of each of the storage device (2), the conveying device (3), the testing device (4), and the sorting device (5) are symmetrical to each other.

6. The dual-track testing, marking and sorting equipment for rectifier bridge according to claim 5, characterized in that: The control device is a computer, and the computer controls the operation of each device through a program.

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