Vehicle-mounted relay semi-finished product test fixture

Abstract

The utility model relates to the technical field of relay testing, in particular to a vehicle-mounted relay semi-finished product testing jig. Comprising a rack, a conveying belt, testing equipment and a plurality of limiting mechanisms, a mounting rack is arranged on the rack, and the test equipment is mounted on the mounting rack; the conveying belt is installed at the upper end of the rack, and a power assembly used for driving the conveying belt to move is installed on the rack. The multiple limiting mechanisms are installed on the conveying belt at equal intervals in the path direction of the conveying belt. According to the technical scheme, automatic contact and abutting work of the iron can and the connecting ring can be achieved, the equipment can conduct fixing, testing and discharging work at the same time by arranging the multiple limiting mechanisms moving synchronously, pressing and discharging work is automatic, manual operation is not needed, and the working efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of relay testing, in particular to a testing fixture for semi-finished vehicle-mounted relays. Background Technique

[0002] A vehicle-mounted relay is an electronic control device, an automatic switch that uses a smaller current to control a larger current. The finished relay needs to be welded or potted to achieve a sealing effect. If there are parameter defects in the product after welding or potting, it can only be scrapped. Facing this problem, it is necessary to test the parameters before welding or potting. Before welding or potting, the moving contact assembly and the static contact assembly are in a discrete state, and when testing, the moving contact assembly and the static contact assembly need to be kept in the same state as the finished product.

[0003] Chinese Patent No. CN218331862U discloses a testing fixture for semi-finished circular high-voltage DC relays, including a testing platform and a circular high-voltage DC relay. A cylinder fixing plate is arranged on the testing platform, and a probe control cylinder is arranged on one side of the cylinder fixing plate. A probe fixing plate is connected above the probe control cylinder, and a product fixing base is arranged on the side of the probe control cylinder away from the cylinder fixing plate. A product pressing fixture is arranged on the product fixing base, and a connecting ring fixing fixture is arranged at the upper end of the product fixing base.

[0004] The above-disclosed patent still has the following technical defects: It is necessary to drive the iron can to move and contact the connecting ring through a driving member. When testing multiple groups of relays, it is necessary to wait for the previous group of relays to complete the test and release the fixation before fixing the next group of relays, which takes a long time and its working efficiency needs to be improved. Content of the Utility Model

[0005] The purpose of the utility model is to propose a testing fixture for semi-finished vehicle-mounted relays in view of the problems existing in the background technique.

[0006] The technical solution of the utility model, a testing fixture for semi-finished vehicle-mounted relays, includes:

[0007] A frame, on which an installation frame is arranged;

[0008] A conveyor belt, which is installed at the upper end of the frame, and a power component for driving the conveyor belt to move is installed on the frame;

[0009] Testing equipment, which is installed on the installation frame;

[0010] A plurality of limiting mechanisms are equidistantly installed on the conveyor belt along the path direction of the conveyor belt. The limiting mechanism includes a U-shaped frame, a cylinder body, a limiting support, a first elastic connection assembly, a fixed clamping plate, a movable clamping plate, and a second elastic connection assembly. Among them, the U-shaped frame is installed on the conveyor belt, the cylinder body is installed on the U-shaped frame, the limiting support is slidably connected to the cylinder body, the limiting support is elastically connected to the limiting support through the first elastic assembly, the fixed clamping plate is installed at one end of the U-shaped frame, the movable clamping plate is elastically connected to the other end of the U-shaped frame through the second elastic connection assembly, and a movable plate is connected to one side of the movable clamping plate;

[0011] A first guide plate and a second guide plate, both the first guide plate and the second guide plate are connected to the frame.

[0012] Preferably, the power assembly includes a servo motor, two toothed belts, two transmission shafts, and four toothed belt pulleys. Among them, the two transmission shafts are respectively rotatably installed at both ends of the frame, the four toothed belt pulleys are respectively arranged in pairs on the transmission shafts on both sides, the two toothed belts are respectively fixed at both inner ends of the conveyor belt, and the toothed belts are meshed and connected with the two toothed belt pulleys on the corresponding side.

[0013] Preferably, a conveyor belt device is arranged below the output end of the conveyor belt, and limiting side plates are arranged at both ends of the conveyor belt device.

[0014] Preferably, a sponge is arranged on the conveyor belt surface of the conveyor belt device.

[0015] Preferably, a probe limiting plate is installed at the top of the U-shaped frame, and a plurality of probe holes are formed in the probe limiting plate.

[0016] Preferably, a support plate is connected to the frame, and the support plate is in contact with the upper end of the inner wall of the conveyor belt.

[0017] Preferably, an infrared emitter and an infrared receiver are respectively installed at both inner ends of the mounting frame.

[0018] Preferably, one end of the first guide plate has a downwardly bent structure, and the first guide plate is located inside the conveyor belt; one end of the second guide plate has an outwardly bent structure, and the second guide plate is located above the conveyor belt.

[0019] Preferably, the first elastic connection assembly includes a first guide rod, a first spring, and a hemispherical block. The first guide rod is connected to the limiting support, the first guide rod movably penetrates through the cylinder body and the conveyor belt and its end is connected to the hemispherical block, and the first spring is sleeved and installed on the first guide rod.

[0020] Preferably, the second elastic connection assembly includes a second guide rod and a second spring. The second guide rod movably penetrates through one side of the U-shaped frame, both ends of the second guide rod are respectively connected to the movable clamping plate and the movable plate, and the second spring is sleeved on the second guide rod.

[0021] Compared with the prior art, the utility model has the following beneficial technical effects: This technical solution can realize the automatic contact and pressing of the iron can and the connecting ring. By setting a plurality of limit mechanisms that move synchronously, the device can perform fixing, testing, and discharging operations simultaneously, and the pressing (the pressing operation of the iron can and the connecting ring) and discharging operations are automated without manual operation, and its working efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 and Figure 2 are all schematic structural diagrams of the utility model.

[0023] Figure 3 is Figure 1 a partially enlarged structural diagram of part A of

[0024] Figure 4 is Figure 2 a partially enlarged structural diagram of part B of

[0025] Reference numerals: 1, frame; 2, conveyor belt; 3, mounting frame; 4, testing equipment; 51, servo motor; 52, toothed belt pulley; 53, toothed belt; 54, transmission shaft; 6, cylinder; 7, limit support; 8, conveyor belt equipment; 9, sponge; 10, first guide plate; 11, second guide plate; 12, first guide rod; 13, first spring; 14, hemispherical block; 151, fixed clamping plate; 152, movable clamping plate; 16, U-shaped frame; 17, second guide rod; 18, second spring; 19, movable plate; 20, pull ring; 21, probe limit plate; 22, limit side plate; 23, support plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Embodiment 1

[0027] As Figures 1 - 4 shown, a test fixture for semi-finished vehicle-mounted relays proposed in this embodiment includes a frame 1, a conveyor belt 2, testing equipment 4, a first guide plate 10, a second guide plate 11, and a plurality of limit mechanisms.

[0028] An installation frame 3 is provided on the frame 1, and the test equipment 4 is installed on the installation frame 3; the conveyor belt 2 is installed at the upper end of the frame 1, and a power assembly for driving the movement of the conveyor belt 2 is installed on the frame 1. The power assembly includes a servo motor 51, two toothed belts 53, two transmission shafts 54 and four toothed belt pulleys 52. Among them, the two transmission shafts 54 are respectively rotatably installed at both ends of the frame 1, the four toothed belt pulleys 52 are respectively arranged in pairs on the transmission shafts 54 on both sides, the two toothed belts 53 are respectively fixed at both inner ends of the conveyor belt 2, and the toothed belt 53 is meshed and connected with the two toothed belt pulleys 52 on the corresponding side. Start the servo motor 51 to drive the transmission shaft 54 to rotate. The rotation of the transmission shaft 54 drives the four toothed belt pulleys 52 to rotate, the toothed belt pulleys 52 drive the toothed belt 53 to move, and finally the movement of the toothed belt 53 drives the conveyor belt 2 to move synchronously; a support plate 23 is connected to the frame 1, and the support plate 23 is in contact with the upper end of the inner wall of the conveyor belt 2. By providing the support plate 23, the upper end of the conveyor belt 2 can be supported to prevent the upper end of the conveyor belt 2 from sagging.

[0029] A plurality of limiting mechanisms are equidistantly installed on the conveyor belt 2 along the path direction of the conveyor belt 2. The limiting mechanism includes a U-shaped frame 16, a cylinder body 6, a limiting support 7, a first elastic connection assembly, a fixed clamping plate 151, a movable clamping plate 152 and a second elastic connection assembly. Among them, the U-shaped frame 16 is installed on the conveyor belt 2, the cylinder body 6 is installed on the U-shaped frame 16, the limiting support 7 is slidably connected with the cylinder body 6, and the limiting support 7 is elastically connected with the limiting support 7 through a first elastic component. The first elastic connection assembly includes a first guide rod 12, a first spring 13 and a hemispherical block 14. The first guide rod 12 is connected with the limiting support 7. The first guide rod 12 movably penetrates through the cylinder body 6 and the conveyor belt 2 and its end is connected with the hemispherical block 14. The first spring 13 is sleeved on the first guide rod 12. The fixed clamping plate 151 is installed at one end of the U-shaped frame 16, and the movable clamping plate 152 is elastically connected with the other end of the U-shaped frame 16 through a second elastic connection assembly. One side of the movable clamping plate 152 is connected with a movable plate 19. The second elastic connection assembly includes a second guide rod 17 and a second spring 18. The second guide rod 17 movably penetrates through one side of the U-shaped frame 16. Both ends of the second guide rod 17 are respectively connected with the movable clamping plate 152 and the movable plate 19. A pull ring 20 is installed on the movable plate 19 to facilitate pulling the movable plate 19 to move outwards. The second spring 18 is sleeved on the second guide rod 17; a probe limiting plate 21 is installed at the top of the U-shaped frame 16. A plurality of probe holes are opened on the probe limiting plate 21. When fixedly connecting the ring, attention should be paid to aligning the probe with the plurality of probe holes so that the probe can be accurately inserted into the probe holes for positioning the probe; both the first guide plate 10 and the second guide plate 11 are connected with the frame 1. One end of the first guide plate 10 has a downwardly bent structure. The first guide plate 10 is located inside the conveyor belt 2. One end of the second guide plate 11 has an outwardly bent structure. The second guide plate 11 is located above the conveyor belt 2.

[0030] In this technical solution, the relay includes an iron can and a connecting ring. Before testing multiple semi-finished relays, the relay needs to be fixed. Place the iron can on the limit support 7, pull the movable plate 19 outward to drive the movable clamping plate 152 to move, so that the connecting ring is placed between the fixed clamping plate 151 and the movable clamping plate 152. Then release the movable plate 19. Under the elastic force of the second spring 18, the connecting ring is fixed between the movable clamping plate 152 and the fixed clamping plate 151. Drive the conveyor belt 2 to move through the set power component, and the conveyor belt 2 drives the limit mechanism to move. When the hemispherical block 14 contacts the inclined surface on the first guide plate 10, it forces the first guide rod 12 to gradually move upward. The movement of the first guide rod 12 drives the limit support 7 to move. The upward movement of the limit support 7 makes the iron can contact and press against the connecting ring. When the limit mechanism moves to the position below the testing device 4, stop driving the conveyor belt 2, and perform the testing work on the relay through the set testing device 4. After the testing work is completed, continue to drive the conveyor belt 2 to move. When the hemispherical block 14 separates from the first guide plate 10, under the elastic force of the first spring 13, drive the limit support 7 to reset, so that the iron can separates from the connecting ring. When the movable plate 19 contacts the inclined surface of the second guide plate 11, it forces the movable plate 19 to gradually move outward, and the movement of the movable plate 19 drives the movable clamping plate 152 to move, thereby automatically releasing the fixing work on the connecting ring.

[0031] Embodiment 2

[0032] As Figure 1 and Figure 2 shown, a testing fixture for semi-finished vehicle-mounted relays proposed in this embodiment. Compared with Embodiment 1, in this embodiment, a conveyor belt device 8 is provided below the output end of the conveyor belt 2, and limit side plates 22 are provided at both ends of the conveyor belt device 8; a sponge 9 is provided on the conveyor belt surface of the conveyor belt device 8; when the relay starts to rotate downward, the relay immediately falls onto the sponge 9 on the outer periphery of the conveyor belt device 8. Since the sponge is a flexible material, it can prevent the relay from being damaged. The conveyor belt device 8 conveys the tested relay to the next station.

[0033] Embodiment 3

[0034] As Figure 1As shown in the figure, a semi-finished product test fixture for a vehicle-mounted relay proposed in this embodiment. Compared with the first embodiment, in this embodiment, an infrared transmitter and an infrared receiver are respectively installed at both inner ends of the mounting frame 3. When the U-shaped frame 16 moves between the infrared transmitter and the infrared receiver, the infrared signal emitted by the infrared transmitter cannot be received by the infrared receiver. Immediately, the infrared receiver feeds back the signal to the controller, and then the controller controls the servo motor 51 to stop driving, so as to achieve the precise positioning of the limit mechanism.

[0035] The above has described in detail the embodiments of the present invention in conjunction with the accompanying drawings. However, the present invention is not limited to this. Various changes can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those skilled in the relevant art.

Claims

1. A semi-finished product test fixture for a vehicle-mounted relay, characterized in that, Including: A frame (1), on which a mounting bracket (3) is provided; A conveyor belt (2), which is installed at the upper end of the frame (1), and a power assembly for driving the movement of the conveyor belt (2) is installed on the frame (1); A testing device (4), which is installed on the mounting bracket (3); A plurality of limiting mechanisms, which are equidistantly installed on the conveyor belt (2) along the path direction of the conveyor belt (2). The limiting mechanism includes a U-shaped frame (16), a cylinder body (6), a limiting support (7), a first elastic connection assembly, a fixed clamping plate (151), a movable clamping plate (152) and a second elastic connection assembly. Among them, the U-shaped frame (16) is installed on the conveyor belt (2), the cylinder body (6) is installed on the U-shaped frame (16), the limiting support (7) is slidably connected with the cylinder body (6), the limiting support (7) is elastically connected with the limiting support (7) through the first elastic assembly, the fixed clamping plate (151) is installed at one end of the U-shaped frame (16), the movable clamping plate (152) is elastically connected with the other end of the U-shaped frame (16) through the second elastic connection assembly, and a movable plate (19) is connected to one side of the movable clamping plate (152); A first guide plate (10) and a second guide plate (11), both of which are connected to the frame (1).

2. The semi-finished product test fixture for vehicle-mounted relay according to claim 1, wherein, The power assembly includes a servo motor (51), two toothed belts (53), two transmission shafts (54) and four toothed belt pulleys (52). Among them, the two transmission shafts (54) are respectively rotatably installed at both ends of the frame (1), the four toothed belt pulleys (52) are respectively arranged in pairs on the transmission shafts (54) on both sides, the two toothed belts (53) are respectively fixed at both inner ends of the conveyor belt (2), and the toothed belt (53) is meshed and connected with the two toothed belt pulleys (52) on the corresponding side.

3. The semi-finished product test fixture for vehicle-mounted relay according to claim 1, characterized in that, A conveyor belt device (8) is arranged below the output end of the conveyor belt (2) adjacent thereto, and limiting side plates (22) are arranged at both ends of the conveyor belt device (8).

4. The semi-finished product test fixture for vehicle-mounted relay according to claim 3, characterized in that, A sponge (9) is arranged on the conveyor belt surface of the conveyor belt device (8).

5. A semi-finished vehicle-mounted relay testing fixture according to claim 1, characterized in that A probe limiting plate (21) is installed at the top end of the U-shaped frame (16), and a plurality of probe holes are provided on the probe limiting plate (21).

6. The semi-finished product test fixture for vehicle-mounted relay according to claim 1, characterized in that, A support plate (23) is connected to the frame (1), and the support plate (23) is in contact with the upper end of the inner wall of the conveyor belt (2).

7. A semi-finished product test fixture for a vehicle-mounted relay according to claim 1, characterized in that, An infrared emitter and an infrared receiver are respectively installed at both inner ends of the mounting bracket (3).

8. A semi-finished product test fixture for a vehicle-mounted relay according to claim 1, characterized in that, One end of the first guide plate (10) has a downwardly bent structure, and the first guide plate (10) is located inside the conveyor belt (2); one end of the second guide plate (11) has an outwardly bent structure, and the second guide plate (11) is located above the conveyor belt (2).

9. The semi-finished product test fixture for vehicle-mounted relay according to claim 1, characterized in that, The first elastic connection assembly includes a first guide rod (12), a first spring (13) and a hemispherical block (14). The first guide rod (12) is connected to the limiting support (7), the first guide rod (12) movably penetrates through the cylinder body (6) and the conveyor belt (2) and its end is connected to the hemispherical block (14), and the first spring (13) is sleeved and installed on the first guide rod (12).

10. The semi-finished product test fixture for vehicle-mounted relay according to claim 1, wherein, The second elastic connection component includes a second guide rod (17) and a second spring (18). The second guide rod (17) movably penetrates through one side of the U-shaped frame (16). Two ends of the second guide rod (17) are respectively connected to the movable clamping plate (152) and the movable plate (19). The second spring (18) is sleeved on the second guide rod (17).

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