Multi-pole tripping test unit

Abstract

The invention discloses a multi-pole tripping test unit, and relates to the field of circuit breaker test equipment, the multi-pole tripping test unit comprises a rack, the rack is provided with a first conveyer belt and a second conveyer belt, the first conveyer belt and the second conveyer belt are arranged in parallel; the closing mechanism is located between the first conveying belt and the second conveying belt; the tripping test mechanism is located between the first conveying belt and the second conveying belt and is arranged opposite to the closing mechanism; the first transfer mechanism is positioned right above the first conveying belt, the second conveying belt and the closing mechanism; the second transfer mechanism is located over the first conveying belt and the second conveying belt. And the tripping test mechanism has a first action of moving towards the closing mechanism and cooperating with the closing mechanism to clamp the circuit breaker, and a second state of being inserted into the circuit breaker for tripping test. The device has the advantages of high detection efficiency, high detection precision and high automation degree.

Description

Technical Field

[0001] The invention relates to the field of circuit breaker testing equipment, and in particular to a multi-pole tripping testing unit. Background Art

[0002] Circuit breakers are protective electrical appliances. If their protection characteristics malfunction, it will affect the normal operation of the power distribution system and even endanger the safety of the system and power equipment. Therefore, product reliability is an important indicator of circuit breaker products. Therefore, during the production process of circuit breakers, it is necessary to test their performance in various aspects, such as on-off detection, tripping force detection, push rod force detection, opening and closing force detection, etc., to ensure that their reliability meets the requirements.

[0003] At present, in the production process of small circuit breakers, the tripping force detection needs to be carried out manually or equipped with a single function test bench. During the detection process, the product needs to be transferred between the production line and the testing equipment, which has low detection efficiency. The test data after the test is recorded manually and cannot be automatically summarized, so the degree of automation is low. Summary of the invention

[0004] In order to overcome the shortcomings of the background technology, the present invention provides a multi-pole tripping test unit with high detection efficiency, high detection accuracy and high automation.

[0005] The technical solution adopted by the present invention is: a multi-pole tripping test unit, comprising a frame, on which are provided: A first conveyor belt and a second conveyor belt, both of which are arranged in parallel; A closing mechanism, which is located between the first conveyor belt and the second conveyor belt; A tripping test mechanism, which is located between the first conveyor belt and the second conveyor belt and is arranged opposite to the closing mechanism; A first transfer mechanism, which is located directly above the first conveyor belt, the second conveyor belt and the closing mechanism; A second transfer mechanism, which is located directly above the first conveyor belt and the second conveyor belt; The tripping test mechanism has a first action of moving toward the closing mechanism and cooperating with the closing mechanism to clamp the circuit breaker, and a second state of being inserted into the circuit breaker to perform a tripping test.

[0006] The closing mechanism comprises: A first base, which is mounted on the frame and is used to place the circuit breaker; A first mounting seat, which is slidably mounted on the first base; A first driving member, which is mounted on the first base and has an output end connected to the first mounting seat; A push rod, which is slidably mounted in the first mounting seat; A second driving member, which is mounted on the first mounting seat and has an output end connected to the push rod; The moving direction of the push rod is perpendicular to the moving direction of the first mounting seat.

[0007] Detection components for detecting whether the circuit breaker is closed successfully are provided on both sides of the closing mechanism, and the detection components include: A sixth driving member, which is arranged on the frame and has output parts at both ends thereof that move toward and away from each other; A probe seat, which is installed on the output part and located at two sides of the circuit breaker; A plurality of probe heads are installed in the probe seat at linear intervals.

[0008] The tripping test mechanism comprises: a third driving member, which is mounted on the frame; A second base connected to an output end of a third driving member; A positioning plate, which is mounted on the front end of the second base; A second mounting seat, mounted at the rear end of the second base; A rotating frame, which is rotatably mounted between the positioning plate and the second mounting seat; a fourth driving member, mounted on the second mounting seat and used for driving the rotating frame to rotate; A test assembly mounted on the rotating frame; The test assembly has a first action of being inserted into the circuit breaker after the positioning plate approaches the circuit breaker, and a second action of rotating with the rotating frame to realize a trip test.

[0009] The output end of the fourth driving member is located on one side of the rotating frame and the two are in contact fit. The positioning plate is provided with a reset component on the other side of the rotating frame and is in elastic contact fit with the rotating frame.

[0010] The test components include: a fifth driving member, which is mounted on the rotating frame; a pressure sensor fixedly connected to an output end of the fifth driving member; A test pin and a pressure sensor are provided with a pin socket for connecting the two.

[0011] The positioning plate is provided with a bearing rotatably connected to the rotating frame. The rotating frame is provided with a through hole for the test pin to pass through. The through hole is arranged offset from the center of the bearing.

[0012] The output end of the fourth driving member is provided with a swing arm and a roller rotatably mounted on the end of the swing arm, the roller is in rolling contact with the side wall of the rotating frame, the reset assembly includes a fixed box fixedly mounted on the positioning plate and an elastic push rod elastically mounted in the fixed box, one end of the elastic push rod extending out of the fixed box is in contact with the side wall of the rotating frame.

[0013] The first conveyor belt is provided with a baffle at a position directly below the first transfer mechanism, and the frame is provided with a barcode scanner for scanning the circuit breaker intercepted by the baffle.

[0014] The frame is provided with a seventh driving member and a material blocking strip driven by the seventh driving member to move in and out of the second conveyor belt at a position corresponding to the second transfer mechanism.

[0015] The beneficial effects of the present invention are as follows: in order to test how much force is required for the double metal deformation to cause the release in the small circuit breaker to trip, the present technical solution specially designs the present structure, the small circuit breakers in the first conveyor belt are placed in the closing mechanism by the first transfer mechanism for closing operation, and then the tripping test mechanism is inserted into the circuit breaker for detection, and after the detection is completed, they are placed in the second conveyor belt by the first transfer mechanism, and then the second transfer mechanism will re-transfer the qualified small circuit breakers to the first conveyor belt, and the unqualified small circuit breakers will be centrally processed through the second conveyor belt, which has the advantages of high detection efficiency, high detection accuracy and high degree of automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of a multi-pole tripping test unit according to an embodiment of the present invention.

[0017] Figure 2 A schematic diagram of the structure of a multi-pole tripping test unit without the first transfer mechanism and the second transfer mechanism.

[0018] Figure 3 It is a structural schematic diagram of the closing mechanism and the tripping test mechanism.

[0019] Figure 4 It is a structural schematic diagram of the closing mechanism and detection components.

[0020] Figure 5 A schematic diagram of the structure of the detection component.

[0021] Figure 6 It is a schematic diagram of the split structure of the tripping test mechanism.

[0022] Figure 7 Side view with the positioning plate removed for the trip test mechanism. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are further described below in conjunction with the accompanying drawings: As shown in the figure, a multi-pole trip test unit includes a frame 1, and the frame 1 is provided with: The first conveyor belt 2 and the second conveyor belt 3 are arranged in parallel; A closing mechanism 4, which is located between the first conveyor belt 2 and the second conveyor belt 3; A tripping test mechanism 5, which is located between the first conveyor belt 2 and the second conveyor belt 3 and is arranged opposite to the closing mechanism 4; A first transfer mechanism 6, which is located directly above the first conveyor belt 2, the second conveyor belt 3 and the closing mechanism 4; A second transfer mechanism 9, which is located directly above the first conveyor belt 2 and the second conveyor belt 3; The trip test mechanism 5 has a first action of moving toward the closing mechanism 4 and cooperating with the closing mechanism 4 to clamp the circuit breaker, and a second state of being inserted into the circuit breaker for a trip test. In order to test how much force is required for the double metal deformation to cause the trip device in the small circuit breaker to trip, the technical solution is specially designed. The small circuit breakers in the first conveyor belt are placed in the closing mechanism by the first transfer mechanism for a closing operation, and then the trip test mechanism is inserted into the circuit breaker for testing. After the test is completed, it is placed in the second conveyor belt by the first transfer mechanism. After that, the second transfer mechanism will re-transfer the qualified small circuit breakers to the first conveyor belt, and the unqualified small circuit breakers will be centrally processed through the second conveyor belt. It has the advantages of high detection efficiency, high detection accuracy and high degree of automation.

[0024] The closing mechanism 4 comprises: A first base 41, which is mounted on the frame 1 and is used to place a circuit breaker; A first mounting seat 42, which is slidably mounted on the first base 41; A first driving member 43, which is mounted on the first base 41 and has an output end connected to the first mounting seat 42; A push rod 44, which is slidably mounted in the first mounting seat 42; A second driving member 45, which is mounted on the first mounting seat 42 and has an output end connected to the push rod 44; The moving direction of the push rod 44 is perpendicular to the moving direction of the first mounting base 42. The first driving member and the second driving member both adopt cylinders, oil cylinders or linear motors. The two can cooperate to realize the movement of the push rod in the X-axis direction and the Y-axis direction. The push rod can close the small circuit breaker on the first base and wait for the subsequent tripping test operation.

[0025] A detection component 7 for detecting whether the circuit breaker is closed successfully is provided on both sides of the closing mechanism 4. The detection component 7 includes: A sixth driving member 71, which is arranged on the frame 1 and has output parts 74 at both ends thereof that move toward and away from each other; A probe seat 72, which is mounted on the output portion 74 and located at two sides of the circuit breaker; A plurality of probe heads 73 are installed in the probe seat 72 along linear intervals. The rear ends of the probe heads are connected to energized wires. The probe heads are driven by the sixth driving member to be inserted into the sockets at both ends of the miniature circuit breaker to determine whether the miniature circuit breaker is turned on. If it is turned on, it proves that the circuit breaker is closed successfully.

[0026] The tripping test mechanism 5 comprises: A third driving member 51, which is mounted on the frame 1; A second base 52 connected to an output end of the third driving member 51; A positioning plate 53, which is mounted on the front end of the second base 52; A second mounting seat 54, which is mounted at the rear end of the second base 52; A rotating frame 55, which is rotatably mounted between the positioning plate 53 and the second mounting seat 54; A fourth driving member 56, which is mounted on the second mounting seat 54 and is used to drive the rotating frame 55 to rotate; A test assembly 57 mounted on the rotating frame 55; The test assembly 57 has a first action of being inserted into the circuit breaker after the positioning plate 53 approaches the circuit breaker, and a second action of rotating with the rotating frame 55 to realize the tripping test. The positioning plate is arranged opposite to the closing mechanism, and the positioning plate is driven by the third driving member to approach the circuit breaker on the first base. The size between the two positioning columns on the upper part of the positioning plate is adapted to the position of the shoulder of the circuit breaker. The positioning plate can cooperate with the first base to accurately position and fix the small circuit breaker, so as to ensure the stable closing action of the closing mechanism and the conduction detection action of the detection assembly.

[0027] After the detection component confirms that the circuit breaker is turned on, the test component is inserted into the hole on the side wall of the small circuit breaker through the rotating frame and the positioning plate. The inside of the hole just corresponds to the release of the small circuit breaker. The hole is arc-shaped. The fourth driving member drives the rotating frame to rotate, and the test component swings in an arc shape around the rotation center of the rotating frame, and its trajectory just coincides with the hole on the side wall of the small circuit breaker.

[0028] The output end of the fourth driving member 56 is located on one side of the rotating frame 55 and the two are in contact cooperation. The positioning plate 53 is provided with a reset assembly 58 on the other side of the rotating frame 55, which is elastically in conflict with the rotating frame 55. The output end of the fourth driving member 56 is provided with a swing arm 561 and a roller 562 rotatably installed at the end of the swing arm 561. The roller 562 is in rolling contact cooperation with the side wall of the rotating frame 55. The reset assembly 58 includes a fixed box 581 fixedly installed on the positioning plate 53 and an elastic push rod 5 elastically installed in the fixed box 581. 82, one end of the elastic push rod 582 extending out of the fixed box 581 is in contact with the side wall of the rotating frame 55; the fourth driving member adopts a rotating cylinder, and its output end is a rotating shaft, which drives the swing arm to swing, and the roller at the end of the swing arm is in rolling contact with the side wall of the rotating frame. The swing arm transmits the force to the rotating frame, so that the test component inserted into the hole on the side wall of the circuit breaker swings around the rotation center of the rotating frame. After the test is completed, the fourth driving member is reversed and reset, and the rotating frame will also be reversed and reset under the elastic force of the elastic push rod.

[0029] The fourth driving member and the reset assembly both have a limiting function. When the rotating frame is driven by the fourth driving member to rotate, the elastic push rod of the reset assembly always contacts the side wall of the rotating frame. The reset assembly in this embodiment is tilted. When the rotating frame rotates to a state perpendicular to the reset assembly, the elastic push rod no longer retracts but contacts the rotating frame to play a limiting role. After the test is completed, the fourth driving member reverses to cancel the force on the rotating frame, and the rotating frame also reverses and resets under the action of the reset component. When the rotating frame rotates to a vertical state, it contacts the roller of the fourth driving member, and the roller limits the rotating frame.

[0030] The test component 57 comprises: A fifth driving member 571, which is mounted on the rotating frame 55; a pressure sensor 572, which is fixedly connected to the output end of the fifth driving member 571; A pin socket is provided between the test pin 573 and the pressure sensor 572 to connect the two.

[0031] The positioning plate 53 is provided with a bearing 531 rotatably connected to the rotating frame 55. The rotating frame 55 is provided with a through hole 532 for the test pin 573 to pass through. The through hole 532 is set offset from the center of the bearing 531. The fifth driving member is a cylinder, an oil cylinder or a linear motor, which drives the pressure sensor, the pin holder and the test pin to move linearly together. The test pin passes through the through hole on the rotating frame, and then is inserted into the hole in the small circuit breaker and contacts the release. Thereafter, the rotating frame is driven to rotate by the fourth driving member, and the test pin swings synchronously and drives the release in the small circuit breaker to operate. In this process, the torsional force received by the test pin will be transmitted to the pressure sensor, and the pressure sensor can detect the numerical value of the torsional force.

[0032] The first conveyor belt 2 is provided with a baffle 21 at a position directly below the first transfer mechanism 6, and the frame 1 is provided with a scanner 22 for scanning the circuit breaker intercepted by the baffle. The baffle on the first conveyor belt can intercept the incoming small circuit breaker, which is convenient for the scanner to scan and then facilitate the clamping and transfer of the first transfer mechanism.

[0033] The frame 1 is provided with a seventh driving member 81 and a material blocking strip 82 driven by the seventh driving member 81 to enter and exit the second conveyor belt 3 at a position corresponding to the second transfer mechanism 9. The seventh driving member is an air cylinder, an oil cylinder or a linear motor, which drives the material blocking strip to linearly insert or withdraw from the second conveyor belt. When unqualified products are detected by the tripping test mechanism, the material blocking strip does not need to move, and the unqualified products are transported away by the second conveyor belt. When qualified products are detected, the material blocking strip is inserted into the second conveyor belt to intercept the qualified products, and then the second transfer mechanism transfers the qualified products back to the first conveyor belt.

[0034] In this embodiment, the second transfer mechanism and the second transfer mechanism can be a manipulator, or can be a robot. Figure 1 The finger cylinder shown can realize movement in the Z-axis direction and the X-axis direction. The above structure is the existing technology and will not be described in detail here.

[0035] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0037] Technical personnel should note that: Although the present invention has been described according to the above specific implementation methods, the inventive concept of the present invention is not limited to this invention, and any modification using the inventive concept will be included in the scope of protection of this patent.

Claims

1. A multi-pole trip test unit, comprising a frame (1), characterized in that: The frame (1) is provided with: A first conveyor belt (2) and a second conveyor belt (3), the two being arranged in parallel; A closing mechanism (4), which is located between the first conveyor belt (2) and the second conveyor belt (3); A tripping test mechanism (5), which is located between the first conveyor belt (2) and the second conveyor belt (3) and is arranged opposite to the closing mechanism (4); A first transfer mechanism (6), which is located directly above the first conveyor belt (2), the second conveyor belt (3) and the closing mechanism (4); A second transfer mechanism (9), which is located directly above the first conveyor belt (2) and the second conveyor belt (3); The tripping test mechanism (5) has a first action of moving towards the closing mechanism (4) and cooperating with the closing mechanism (4) to clamp the circuit breaker, and a second state of being inserted into the circuit breaker to perform a tripping test.

2. The multi-pole trip test unit according to claim 1, characterized in that: The closing mechanism (4) comprises: A first base (41), which is mounted on the frame (1) and is used to place a circuit breaker; A first mounting seat (42) slidably mounted on the first base (41); A first driving member (43), which is mounted on the first base (41) and has an output end connected to the first mounting seat (42); A push rod (44) slidably mounted in the first mounting seat (42); A second driving member (45) mounted on the first mounting seat (42) and having an output end connected to the push rod (44); The moving direction of the push rod (44) and the moving direction of the first mounting seat (42) are perpendicular to each other.

3. The multi-pole trip test unit according to claim 1, characterized in that: Detection components (7) for detecting whether the circuit breaker is closed successfully are provided on both sides of the closing mechanism (4), and the detection components (7) include: a sixth driving member (71), which is arranged on the frame (1) and has output parts (74) at both ends thereof that move toward and away from each other; A probe seat (72) mounted on the output portion (74) and located on both sides of the circuit breaker; A plurality of probe heads (73) are installed in the probe seat (72) along a linear interval.

4. The multi-pole trip test unit according to claim 1, characterized in that: The tripping test mechanism (5) comprises: a third driving member (51), which is mounted on the frame (1); A second base (52) connected to an output end of the third driving member (51); A positioning plate (53) mounted on the front end of the second base (52); A second mounting seat (54) mounted on the rear end of the second base (52); A rotating frame (55) rotatably mounted between the positioning plate (53) and the second mounting seat (54); a fourth driving member (56), mounted on the second mounting seat (54) and used for driving the rotating frame (55) to rotate; A test assembly (57) mounted on the rotating frame (55); The test assembly (57) has a first action of being inserted into the circuit breaker after the positioning plate (53) approaches the circuit breaker, and a second action of rotating along with the rotating frame (55) to implement a trip test.

5. The multi-pole trip test unit according to claim 4, characterized in that: The output end of the fourth driving member (56) is located on one side of the rotating frame (55) and the two are in contact engagement, and the positioning plate (53) is provided with a reset assembly (58) on the other side of the rotating frame (55) that is in elastic contact engagement with the rotating frame (55).

6. The multi-pole trip test unit according to claim 4, characterized in that: The test component (57) comprises: a fifth driving member (571), mounted on the rotating frame (55); a pressure sensor (572), fixedly connected to an output end of the fifth driving member (571); A test pin (573) and a pressure sensor (572) are provided with a pin socket for connecting the two.

7. The multi-pole trip test unit according to claim 6, characterized in that: The positioning plate (53) is provided with a bearing (531) rotatably connected to the rotating frame (55), and the rotating frame (55) is provided with a through hole (532) for the test pin (573) to pass through, and the through hole (532) is arranged offset from the center of the bearing (531).

8. The multi-pole trip test unit according to claim 5, characterized in that: The output end of the fourth driving member (56) is provided with a swing arm (561) and a roller (562) rotatably mounted on the end of the swing arm (561), the roller (562) rollingly contacting and cooperating with the side wall of the rotating frame (55), the reset assembly (58) comprising a fixed box (581) fixedly mounted on the positioning plate (53) and an elastic push rod (582) elastically mounted in the fixed box (581), one end of the elastic push rod (582) extending out of the fixed box (581) abutting and cooperating with the side wall of the rotating frame (55).

9. The multi-pole trip test unit according to claim 1, characterized in that: The first conveyor belt (2) is provided with a baffle (21) at a position corresponding to the first transfer mechanism (6), and the frame (1) is provided with a barcode scanner (22) for scanning the circuit breaker intercepted by the baffle.

10. The multi-pole trip test unit according to claim 1, characterized in that: The frame (1) is provided with a seventh driving member (81) and a material blocking strip (82) driven by the seventh driving member (81) to move in and out of the second conveyor belt (3) at a position corresponding to the position directly below the second transfer mechanism (9).

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