Silicon controlled rectifier testing device

Abstract

The invention discloses a silicon controlled rectifier testing device, and relates to the technical field of silicon controlled rectifier testing. The silicon controlled rectifier testing device comprises a machine base, a mounting frame, a conveying guide rail, a bearing assembly and a driving mechanism, the mounting frame and the conveying guide rail are both erected on the top of the machine base, a hole is integrally formed in the mounting frame, and the bearing assembly is used for mounting a silicon controlled rectifier to be assembled and tested. According to the silicon controlled rectifier testing device, through the cooperative design of the testing mechanism, the crimping mechanism A and the crimping mechanism B, the crimping mechanism A carries out crimping assembling on a silicon controlled rectifier shell, the testing mechanism is used for carrying out connection and power-on testing on pins of a silicon controlled rectifier after preliminary assembling, and the silicon controlled rectifier is tested in the assembling process; after defective products are detected, the silicon controlled rectifier can be conveniently picked out, the defective products can be conveniently replaced, the loss of the defective products is reduced, the silicon controlled rectifier can be crimped and positioned by using the positioning pins during testing, the situation that the silicon controlled rectifier is unstable when passing through a power-on test of the power-on pins is prevented, and the test precision is improved.

Description

Technical Field

[0001] The invention relates to the technical field of thyristor testing, and in particular to a thyristor testing device. Background Art

[0002] Silicon Controlled Rectifier (SCR) is a high-power electrical component, also known as thyristor. It has the advantages of small size, high efficiency and long life. In automatic control systems, it can be used as a high-power driver to control high-power equipment with low-power controls. It has been widely used in AC and DC motor speed control systems, power regulation systems and follow-up systems.

[0003] In the test device for thyristors, there are some automation issues in the crimping assembly and power-on testing process; first, the crimping assembly stage involves precise pressure control and contact point docking, and it is necessary to ensure that each joint is properly connected to avoid poor contact or damage to components, which requires a high degree of precision and flexibility in the automation device; overall, the automation process has high requirements for precise control, equipment coordination and fault detection capabilities, and errors in any link may affect the accuracy of the test results and production efficiency.

[0004] Some existing thyristor test devices are tested after the thyristors are assembled. After the test, if defective products are detected, the group of thyristors will be scrapped and inconvenient to recycle. Therefore, a new thyristor test device is provided to solve the above problem. Summary of the invention

[0005] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art and to provide a test device for thyristors that can solve the problems raised by the background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a thyristor testing device, comprising a machine base, a mounting frame, a conveying guide rail, a receiving assembly and a driving mechanism, wherein the mounting frame and the conveying guide rail are both mounted on the top of the machine base, a hole is integrally formed on the mounting frame, the receiving assembly is used to install the thyristor with assembly and testing, the conveying guide rail is inserted into the hole reserved on the mounting frame and is used to guide the receiving assembly, and the driving mechanism is arranged on the side of the conveying guide rail and can drive the receiving assembly to be conveyed in the conveying guide rail; It also includes a testing mechanism, a crimping mechanism A, a crimping mechanism B and a connecting mechanism. The testing mechanism is arranged on the inner side of the mounting frame at a position above the conveying guide rail and is used to crimp and power-on test the thyristor. The crimping mechanism A and the crimping mechanism B are respectively arranged at the front and rear positions of the testing mechanism on the conveying guide rail and are respectively used to crimp and assemble the thyristor components. The connecting mechanism is arranged on the machine base and is respectively connected to the testing mechanism, the crimping mechanism A and the crimping mechanism B to drive the moving parts therein.

[0007] Preferably, the testing mechanism includes a cylinder A, a movable seat A, a connector, positioning pins and power-on pins. The cylinder A is mounted on the side wall of the middle section of the conveying guide rail, and the movable seat A is connected to the free end of the cylinder A. Multiple groups of connectors are installed on the side wall of the movable seat A near its bottom. Two groups of positioning pins and power-on pins corresponding to the number and positions of pins on the thyristor are installed at the bottom of each group of connectors. The two groups of positioning pins are arranged on both sides of the multiple groups of power-on pins and position the thyristor. The crimping mechanism A crimps and assembles the thyristor housing. After the initial assembly, the testing mechanism is used to connect and power on the pins of the thyristor. The thyristor is tested during assembly. After defective products are detected, it is convenient to pick out the thyristor and replace the defective parts, thereby reducing the loss of defective products.

[0008] Preferably, the receiving component includes an installation strip, a plug-in slot, a thyristor component and a tooth groove. The installation strip is a strip frame structure. The number of the plug-in slots is multiple groups and is distributed in a linear array and is integrally formed on the surface of the installation strip. The plug-in slots are used to insert the thyristor components. The tooth grooves are integrally formed at the side edges of the installation strip, and the thyristors can be continuously crimped, assembled and transported. The thyristors after test assembly are still stored in the plug-in slots on the installation strip, which is convenient for loading and unloading and management of the thyristors.

[0009] Preferably, the driving mechanism includes a servo motor, a driving gear and a motor cover. A servo motor is arranged at the bottom position of the side of the conveying guide rail. The output shaft of the servo motor is installed through a coupling and meshes with the tooth groove on the side of the mounting strip in the conveying guide rail. A motor cover that covers the driving gear is installed on the top of the conveying guide rail.

[0010] Preferably, the crimping mechanism A includes a gantry, a cylinder B, a cylinder C and a crimping plate. The gantry is installed near the side of the conveying guide rail, the cylinder B is arranged on the gantry, the free end of the cylinder B is connected to the cylinder C, and the free end of the cylinder C is connected to the crimping plate for crimping the thyristor components.

[0011] Preferably, the crimping mechanism B includes a cylinder D, a movable seat B, a mounting side plate and a side block. The cylinder D is mounted on the conveying guide rail near its side, the testing mechanism is located between the cylinder D and the gantry, the free end of the cylinder D is connected to the movable seat B, the side of the movable seat B is mounted with a mounting side plate, and a plurality of side blocks are integrally formed at the bottom edge of the mounting side plate.

[0012] Preferably, the crimping mechanism B also includes side pressure strips, a cylinder E and a base. The base is installed on the top of the machine base, and the cylinder E is installed on the top of the base. The free end of the cylinder E is connected to multiple groups of side pressure strips distributed in an array. The side pressure strips cooperate with the side blocks to crimp and package the metal feet on the thyristor components.

[0013] Preferably, the connecting mechanism includes an air pump body, an output pipe, a solenoid valve and an input pipe. The air pump body is arranged on the machine base. The output end of the air pump body is connected to a plurality of groups of output pipes which can be respectively connected to cylinder B, cylinder D and cylinder E. The input end of the air pump body is connected to the input pipe. The air pump body is provided with a plurality of groups of solenoid valves for controlling the opening and closing of the output pipes.

[0014] Preferably, a display rack is installed on the top of the base at a position outside the mounting frame, and the display rack is used to place the receiving components for conveying assembly testing. A connecting pump is installed on the mounting frame, and two sets of output ends of the connecting pump are connected to air outlet pipes, and the air outlet pipes are connected to the input end of the cylinder C.

[0015] Compared with the prior art, the present invention has the following beneficial effects: (1) The thyristor test device is designed by the cooperation of the testing mechanism, the crimping mechanism A and the crimping mechanism B. The crimping mechanism A crimps and assembles the thyristor housing. After the initial assembly, the testing mechanism is used to connect and power-on the pins of the thyristor. The thyristor is tested during assembly. After defective products are detected, it is convenient to pick out and replace the defective thyristors, thereby reducing the loss of defective products. The positioning feet can be used to crimp and position the thyristors during testing to prevent the thyristors from becoming unstable when the thyristors are powered on through the power pins for testing, thereby improving the test accuracy.

[0016] (2) The thyristor testing device can continuously crimp, assemble and transport thyristors through the coordinated design of the conveying guide rail, the receiving assembly, the testing mechanism, the crimping mechanism B and the driving mechanism. The thyristors after testing and assembly are still stored in the plug-in slot on the mounting card strip, which is convenient for loading and unloading and management of thyristors, thereby improving the efficiency of thyristor testing and assembly and overall production operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below in conjunction with the accompanying drawings and embodiments: Figure 1 A perspective view of the present invention; Figure 2 A top view of the present invention; Figure 3 It is the AA cross-sectional view of the present invention; Figure 4 It is a front view of the present invention; Figure 5 It is an enlarged view of part A of the present invention; Figure 6 It is an enlarged view of part B of the present invention; Figure 7 It is an enlarged view of the C part of the present invention; Figure 8 It is an enlarged view of the D part of the present invention; Fig. 9 It is an enlarged view of part E of the present invention; Fig.10 It is a partial structural diagram of the present invention.

[0018] Figure markings: machine base 1, mounting frame 2, conveying guide rail 3, receiving assembly 4, mounting card strip 41, plug-in slot 42, thyristor part 43, tooth slot 44, testing mechanism 5, cylinder A51, movable seat A52, plug-in seat 53, positioning foot 54, power-on pin 55, crimping mechanism A6, gantry 61, cylinder B62, cylinder C63, crimping plate 64, crimping mechanism B7, cylinder D71, movable seat B72, mounting side plate 73, side block 74, side pressure strip 75, cylinder E76, base 77, driving mechanism 8, servo motor 81, driving gear 82, motor cover 83, connecting mechanism 9, air pump body 91, output pipe 92, solenoid valve 93, input pipeline 94, display rack 10, connecting pump 11, outlet pipeline 12, etc. DETAILED DESCRIPTION

[0019] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0020] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] In the description of the present invention, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0022] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0023] See also Figure 1-10The present invention provides a technical solution: a thyristor testing device, comprising a machine base 1, a mounting frame 2, a conveying guide rail 3, a receiving assembly 4 and a driving mechanism 8, wherein the mounting frame 2 and the conveying guide rail 3 are both mounted on the top of the machine base 1, and a hole is integrally formed on the mounting frame 2, and the receiving assembly 4 is used to install the thyristor with assembly and testing, and the conveying guide rail 3 is inserted into the hole reserved on the mounting frame 2 and used to guide the receiving assembly 4, and the driving mechanism 8 is arranged on the side of the conveying guide rail 3 and can drive the receiving assembly 4 to be conveyed in the conveying guide rail 3; and further comprising a testing mechanism 5, a crimping mechanism A6, a crimping mechanism B7 and a connecting mechanism 9, and the testing mechanism 5 is arranged on the inner side of the mounting frame 2 on the side of the conveying guide rail 3 The crimping mechanism A6 and the crimping mechanism B7 are respectively arranged at the front and rear positions of the testing mechanism 5 on the conveying guide rail 3 and are respectively used to crimp and assemble the thyristor components. The connecting mechanism 9 is arranged on the machine base 1 and is respectively connected to the testing mechanism 5, the crimping mechanism A6 and the crimping mechanism B7 to drive the moving parts therein; the testing mechanism 5 includes a cylinder A51, a movable seat A52, a socket 53, a positioning foot 54 and an energizing pin 55. The cylinder A51 is mounted on the side wall of the middle section of the conveying guide rail 3, and the movable seat A52 is connected to the free end of the cylinder A51. A plurality of sockets 53 are installed on the side wall of the movable seat A52 near its bottom. Two groups of positioning pins 54 and power-on pins 55 corresponding to the number and position of pins on the thyristor are installed at the bottom of each group of sockets 53. The two groups of positioning pins 54 are arranged on both sides of the multiple groups of power-on pins 55 and position the thyristor. The receiving component 4 includes a mounting card strip 41, a plug-in slot 42, a thyristor part 43 and a tooth groove 44. The mounting card strip 41 is a strip frame structure. The number of the plug-in slots 42 is multiple groups and is distributed in a linear array and is integrally formed on the surface of the mounting card strip 41. The plug-in slots 42 are used to insert the thyristor part 43. The tooth grooves 44 are integrally formed at the side edge of the mounting card strip 41. The driving mechanism 8 includes a servo motor 81, a driving gear 82 and a motor cover 83. The conveying guide rail 3 A servo motor 81 is provided at the bottom position of the side, and the output shaft of the servo motor 81 is installed through a coupling to mesh with the tooth groove 44 on the side of the mounting strip 41 in the conveying guide rail 3. A motor cover 83 that covers the driving gear 82 is installed on the top of the conveying guide rail 3. The crimping mechanism A6 crimps and assembles the thyristor housing. After the initial assembly, the pins of the thyristor are connected and powered on for testing using the testing mechanism 5. The thyristor is tested during assembly. After defective products are detected, it is convenient to pick out and replace the thyristor, thereby reducing the loss of defective products. The positioning foot 54 can be used to crimp and position the thyristor during testing to prevent the thyristor from becoming unstable when being powered on for testing through the power-on pin 55.

[0024] Among them, the crimping mechanism A6 includes a gantry 61, a cylinder B62, a cylinder C63 and a crimping plate 64. The gantry 61 is installed near the side of the conveying guide rail 3, and the gantry 61 is provided with a cylinder B62. The free end of the cylinder B62 is connected to the cylinder C63, and the free end of the cylinder C63 is connected to the crimping plate 64 for crimping the thyristor 43; the crimping mechanism B7 includes a cylinder D71, a movable seat B72, a mounting side plate 73 and a side block 74. The conveying guide rail 3 is near the side thereof. The test mechanism 5 is located between the cylinder D71 and the gantry 61, the free end of the cylinder D71 is connected to a movable seat B72, the side of the movable seat B72 is installed with a mounting side plate 73, and the bottom edge of the mounting side plate 73 is integrally provided with a plurality of side stoppers 74, the crimping mechanism B7 also includes a side pressure strip 75, a cylinder E76 and a base 77, the top of the machine base 1 is installed with a base 77, the top of the base 77 is installed with a cylinder E76, and the free end of the cylinder E76 is connected to a plurality of array points The side pressure strip 75 of the cloth, the side pressure strip 75 cooperates with the side block 74 to crimp and package the metal foot on the thyristor 43; the connecting mechanism 9 includes an air pump body 91, an output pipe 92, a solenoid valve 93 and an input pipeline 94, the base 1 is provided with an air pump body 91, the output end of the air pump body 91 is connected to a plurality of groups of output pipes 92 which can be connected to the cylinder B62, the cylinder D71 and the cylinder E76 respectively, the input end of the air pump body 91 is connected to the input pipeline 94, and the air pump body 91 is provided with a plurality of groups of electric Magnetic valve 93, a display rack 10 is installed on the top of the base 1 at a position outside the mounting frame 2, and the display rack 10 is used to place the receiving component 4 with conveying assembly test, and a connecting pump 11 is installed on the mounting frame 2. The two sets of output ends of the connecting pump 11 are connected to the air outlet pipe 12, and the air outlet pipe 12 is connected to the input end of the cylinder C63, so that the thyristor can be continuously crimped, assembled and transported. The thyristor after test assembly is still stored in the plug-in slot 42 on the mounting card strip 41, which is convenient for loading and unloading and management of the thyristor.

[0025] Working principle: pre-assemble the thyristor components 43 to be assembled and tested and insert them into the plug-in slot 42, then send each group of receiving components 4 into the conveying guide rail 3, control the servo motor 81 to drive the driving gear 82 to rotate, and the driving gear 82 drives the receiving component 4 to move on the conveying guide rail 3 through the motor cover 83 meshing therewith; when the receiving component 4 passes under the crimping mechanism A6, control the cylinder B62 and the cylinder C63 to drive the crimping plate 64 to descend and perform preliminary crimping and assembly on the thyristor component 43; when passing under the testing mechanism 5, control the cylinder A51 to drive the movable seat A52 to descend, and the positioning foot 54 crimps the side of the thyristor component 43, and the power-on pin 55 is connected to the pin on the thyristor component 43 and connected to the external power-on test equipment for power-on test, and when a defective product is tested, the corresponding thyristor component 43 is taken out from the plug-in slot 42; When the receiving component 4 passes under the crimping mechanism B7, the control cylinder D71 drives the movable seat B72 to descend, and the side block 74 approaches the side of the thyristor component 43. Then the control cylinder E76 drives the side pressure strip 75 to correspond to the metal foot of the thyristor upper shell on the thyristor component 43. The metal foot of the thyristor upper shell is crimped through the cooperation of the side pressure strip 75 and the side block 74 to complete the test and assembly.

[0026] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A thyristor testing device, characterized in that: include: A machine base (1), a mounting frame (2), a conveying guide rail (3), a receiving assembly (4) and a driving mechanism (8), wherein the mounting frame (2) and the conveying guide rail (3) are both mounted on the top of the machine base (1), a hole is integrally formed on the mounting frame (2), the receiving assembly (4) is used to install a thyristor with assembly and testing, the conveying guide rail (3) is inserted into the hole reserved on the mounting frame (2) and is used to guide the receiving assembly (4), and the driving mechanism (8) is arranged on the side of the conveying guide rail (3) and can drive the receiving assembly (4) to be conveyed in the conveying guide rail (3); A testing mechanism (5), a crimping mechanism A (6), a crimping mechanism B (7) and a connecting mechanism (9); the testing mechanism (5) is arranged on the inner side of the mounting frame (2) at a position above the conveying guide rail (3) and is used to crimp and conduct power-on testing on the thyristor; the crimping mechanism A (6) and the crimping mechanism B (7) are arranged at positions before and after the testing mechanism (5) on the conveying guide rail (3) and are used to crimp and assemble the thyristor components respectively; the connecting mechanism (9) is arranged on the machine base (1) and is connected to the testing mechanism (5), the crimping mechanism A (6) and the crimping mechanism B (7) respectively to drive the moving components therein.

2. A thyristor testing device according to claim 1, characterized in that: The testing mechanism (5) comprises a cylinder A (51), a movable seat A (52), a plug seat (53), a positioning pin (54) and an energizing pin (55). The cylinder A (51) is mounted on the side wall of the upper middle section of the conveying guide rail (3). The free end of the cylinder A (51) is connected to the movable seat A (52). A plurality of groups of plug seats (53) are mounted on the side wall of the movable seat A (52) near the bottom thereof. Two groups of positioning pins (54) and energizing pins (55) corresponding to the number and position of pins on the thyristor are mounted on the bottom of each group of plug seats (53). The two groups of positioning pins (54) are arranged on both sides of the plurality of groups of energizing pins (55) and are used to position the thyristor.

3. A thyristor testing device according to claim 2, characterized in that: The receiving assembly (4) comprises a mounting strip (41), a plug-in slot (42), a thyristor component (43) and a tooth groove (44); the mounting strip (41) is a strip-shaped frame structure; the plug-in slots (42) are provided in a plurality of groups and are distributed in a linear array and are integrally formed on the surface of the mounting strip (41); the plug-in slots (42) are used to insert the thyristor component (43); and the tooth grooves (44) are integrally formed and arranged at the side edge of the mounting strip (41).

4. A thyristor testing device according to claim 3, characterized in that: The driving mechanism (8) comprises a servo motor (81), a driving gear (82) and a motor cover (83). The servo motor (81) is arranged at the bottom of the side of the conveying guide rail (3). The output shaft of the servo motor (81) is installed through a coupling to mesh with a tooth groove (44) on the side of the mounting clip (41) in the conveying guide rail (3). The top of the conveying guide rail (3) is installed with a motor cover (83) that covers the driving gear (82).

5. A thyristor testing device according to claim 4, characterized in that: The crimping mechanism A (6) comprises a gantry (61), a cylinder B (62), a cylinder C (63) and a crimping plate (64); the gantry (61) is mounted on a position of the conveying guide rail (3) near its side edge; the gantry (61) is provided with a cylinder B (62); the free end of the cylinder B (62) is connected to the cylinder C (63); the free end of the cylinder C (63) is connected to the crimping plate (64) for crimping the thyristor component (43).

6. A thyristor testing device according to claim 5, characterized in that: The crimping mechanism B (7) comprises a cylinder D (71), a movable seat B (72), a mounting side plate (73) and a side stopper (74); the cylinder D (71) is mounted on a position close to the side of the conveying guide rail (3); the testing mechanism (5) is located between the cylinder D (71) and the gantry (61); the free end of the cylinder D (71) is connected to the movable seat B (72); the side of the movable seat B (72) is mounted with a mounting side plate (73); and a plurality of side stoppers (74) are integrally formed at the bottom edge of the mounting side plate (73).

7. A thyristor testing device according to claim 6, characterized in that: The crimping mechanism B (7) further comprises a side pressure strip (75), a cylinder E (76) and a base (77). The base (77) is mounted on the top of the machine base (1). The cylinder E (76) is mounted on the top of the base (77). The free end of the cylinder E (76) is connected to a plurality of array-distributed side pressure strips (75). The side pressure strips (75) cooperate with the side stoppers (74) to crimp and package the metal feet on the thyristor component (43).

8. A thyristor testing device according to claim 7, characterized in that: The connecting mechanism (9) comprises an air pump body (91), an output pipe (92), an electromagnetic valve (93) and an input pipe (94). The air pump body (91) is arranged on the machine base (1). The output end of the air pump body (91) is connected to a plurality of groups of output pipes (92) respectively connectable to cylinder B (62), cylinder D (71) and cylinder E (76). The input end of the air pump body (91) is connected to the input pipe (94). The air pump body (91) is provided with a plurality of groups of electromagnetic valves (93) for controlling the opening and closing of the output pipes (92).

9. A thyristor testing device according to claim 8, characterized in that: A placement rack (10) is installed on the top of the machine base (1) at a position outside the mounting frame (2), and the placement rack (10) is used to place a receiving component (4) for conveying assembly testing. A connecting pump (11) is installed on the mounting frame (2), and two groups of output ends of the connecting pump (11) are connected to an air outlet pipe (12), and the air outlet pipe (12) is connected to the input end of the cylinder C (63).

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