Switching-on and switching-off latch detection tool

Abstract

The utility model relates to a switch-on and switch-off latch detection tool comprising a detection base plate, a go end shaft and a no-go end shaft, the detection base plate is fixedly connected with a positioning pin and a limiting pin, the detection base plate is provided with an arc-shaped oblong hole, the circle center of the oblong hole is concentric with the switch-on and switch-off contact surface of a switch-on and switch-off latch, and the detection base plate is fixedly connected with the go end shaft and the no-go end shaft. The go end shaft is provided with a go end shaft insertion part matched with the long circular hole and a go end shaft detection part matched with the opening and closing contact surface of the opening and closing latch, and the no-go end shaft is provided with a no-go end shaft insertion part matched with the long circular hole and a no-go end shaft detection part matched with the opening and closing contact surface of the opening and closing latch. The go-end shaft detection part and the no-go-end shaft detection part are cylindrical, the diameter of the no-go-end shaft detection part is larger than that of the go-end shaft detection part, and the side surface of the no-go-end shaft detection part is provided with an avoiding surface. The detection efficiency is improved, and the processing quality of the opening and closing latch can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a switch opening and closing latch detection tooling. Background Art

[0002] The switch-on / off pawl is a very important transmission component in the circuit breaker mechanism and is one of the indispensable parts in the switch-on / off process. It has a transmission shaft mounting hole and several connection holes. The switch-on / off contact surface of the switch-on / off pawl is its very important working surface. The arc center is eccentric with the transmission shaft mounting hole. Figure 8 As shown, the detection during the processing of the opening and closing latch is difficult. When the eccentricity is large, ordinary detection means are difficult to implement, the dimensional accuracy of the arc is difficult to guarantee, and it is difficult to implement when deviation occurs. Utility Model Content

[0003] The utility model aims at the deficiencies of the prior art and provides a switch opening and closing latch detection tool with high detection efficiency and convenient operation.

[0004] The utility model is realized through the following technical scheme, which provides a switch-opening and closing latch detection tooling, including a detection base plate, a through-end shaft and a stop-end shaft, wherein a positioning pin adapted to a mounting hole of a transmission shaft on the switch-opening and closing latch and a limit pin adapted to a connecting hole on the switch-opening and closing latch are fixedly connected to the detection base plate, an arc-shaped oblong hole is opened on the detection base plate, the center of the oblong hole is concentric with the switching contact surface of the switch-opening and closing latch, a through-end shaft insertion portion adapted to the oblong hole and a through-end shaft detection portion adapted to the switching contact surface of the switch-opening and closing latch are provided on the through-end shaft, a stop-end shaft insertion portion adapted to the oblong hole and a stop-end shaft detection portion adapted to the switching contact surface of the switch-opening and closing latch are provided on the stop-end shaft, the through-end shaft detection portion and the stop-end shaft detection portion are both cylindrical, the diameter of the stop-end shaft detection portion is larger than the diameter of the through-end shaft detection portion, and a side of the stop-end shaft detection portion is provided with an avoidance surface.

[0005] In this solution, the closing and opening latch to be tested is fixed on the test base plate by limit pins and positioning pins, and the closing and opening contact surface of the closing and opening latch is tested by the through-end shaft and the stop-end shaft respectively. The distance from the through-end shaft to the center of the closing and opening contact surface is equal to the upper limit of the radius required for the detection of the closing and opening contact surface, so that the through-end shaft can move in the arc-shaped oblong hole. When the through-end shaft interferes with the closing and opening contact surface, it proves that the diameter of the closing and opening contact surface is too large. The distance from the stop-end shaft to the center of the closing and opening contact surface is equal to the lower limit of the radius required for the detection of the closing and opening contact surface. During the test, the avoidance surface is facing the closing and opening contact surface, and the stop-end shaft is placed. If the stop-end shaft cannot rotate, it proves that it is qualified. If the stop-end shaft can rotate, it proves that the diameter of the closing and opening contact surface is too small. In this way, the size of the closing and opening contact surface can be quickly detected.

[0006] As an optimization, a through-end shaft operating part is provided at the upper end of the through-end shaft, and the through-end shaft operating part is a square shaft. The through-end shaft operating part in this solution is a square shaft, which is convenient for rotating the through-end shaft by a tool.

[0007] As an optimization, the upper end of the stop shaft is provided with a stop shaft operating part, and the stop shaft operating part is a square shaft. The stop shaft operating part in this solution is a square shaft, which is convenient for rotating the stop shaft by a tool.

[0008] As an optimization, the detection base plate is a circular plate, so that it is easy to process and is compatible with the shape of the opening and closing latch to be detected.

[0009] As an optimization, a positioning pin positioning shaft inserted into the detection base plate is provided at the lower end of the positioning pin, thereby facilitating the positioning and fixing of the positioning pin.

[0010] As an optimization, a limit pin positioning shaft inserted into the detection base plate is provided at the lower end of the limit pin, so as to facilitate the positioning and fixing of the limit pin.

[0011] As an optimization, the detection bottom plate is provided with an arc surface positioning hole concentric with the oblong hole, so as to facilitate positioning and processing of the oblong hole through the arc surface positioning hole.

[0012] The beneficial effects of the utility model are as follows: the utility model provides a switch-opening and closing latch detection tooling with a simple structure, quick and convenient operation, reliable detection results, low manufacturing cost, and can improve the detection efficiency while ensuring the processing quality of the switch-opening and closing latch. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is an exploded schematic diagram of the utility model when the through-end shaft is installed;

[0014] Figure 2 This is a schematic diagram of the structure of the utility model when the through-end shaft is installed;

[0015] Figure 3 It is a top view of the utility model when the through-end shaft is installed;

[0016] Figure 4 This is a schematic diagram of the structure of the utility model when the stop shaft is installed;

[0017] Figure 5 This is a top view of the utility model when the stop shaft is installed;

[0018] Figure 6 It is a bottom view of the utility model;

[0019] Figure 7 For this utility model Figure 3 Sectional view of the middle AA plane;

[0020] Figure 8 This is a schematic diagram of the opening and closing latch;

[0021] As shown in the figure:

[0022] 1. Through-end shaft, 11. Through-end shaft insertion portion, 12. Through-end shaft detection portion, 13. Through-end shaft operating portion, 2. Opening and closing latch, 21. Drive shaft mounting hole, 22. Connecting hole, 3. Detection base plate, 4. Positioning pin, 5. Limit pin, 6. Long round hole, 7. Arc-shaped surface positioning hole, 8. Stop-end shaft, 81. Stop-end shaft insertion portion, 82. Stop-end shaft detection portion, 83. Stop-end shaft operating portion, 84. Avoidance surface. DETAILED DESCRIPTION

[0023] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0024] like Figures 1 to 8 As shown, a switch opening and closing latch detection tool of the utility model comprises a detection base plate 3, a through-end shaft 1 and a stop-end shaft 8. The detection base plate 3 is a circular plate and is horizontally placed on a platform.

[0025] The detection base plate 3 is fixed with a positioning pin 4 adapted to the transmission shaft mounting hole 21 on the opening and closing latch 2 and a limit pin 5 adapted to the connecting hole 22 on the opening and closing latch 2. The positioning pin 4 is fixed at the center position of the detection base plate 3.

[0026] like Figure 7 As shown, the lower end of the positioning pin 4 is provided with a positioning pin locating shaft inserted into the detection base plate 3. The diameter of the positioning pin locating shaft is smaller than the diameter of the positioning pin 4, and a circular hole for accommodating the positioning pin locating shaft to be inserted is provided on the detection base plate 3, thereby realizing the positioning and fixing of the positioning pin 4, and the positioning pin 4 can be pulled out and replaced at the same time, which is convenient for replacing different positioning pin 4 diameters and adapting to different opening and closing actuators.

[0027] The lower end of the limit pin 5 is provided with a limit pin positioning shaft inserted into the detection base plate 3. The diameter of the limit pin positioning shaft is smaller than the diameter of the limit pin 5, and a round hole for inserting the limit pin positioning shaft is opened on the detection base plate 3, thereby realizing the positioning and fixing of the limit pin 5, and the limit pin 5 can be pulled out and replaced, which is convenient for replacing different limit pin 5 diameters and adapting to different opening and closing brakes.

[0028] The switch-opening and closing latch 3 is placed horizontally on the detection base plate 3, the positioning pin 4 is inserted into the transmission shaft mounting hole 21 of the switch-opening and closing latch 2, and the limit pin 5 is inserted into the connecting hole 22 of the switch-opening and closing latch 2, thereby achieving the fixing of the switch-opening and closing latch 2.

[0029] An arc-shaped oblong hole 6 is formed on the detection bottom plate 3, the center of the oblong hole 6 is concentric with the contact surface of the opening and closing latch 2, and the oblong hole 6 includes two parallel arc-shaped surfaces, and the inner and outer arc-shaped surfaces are concentric, which is the center of the oblong hole 6. The oblong hole 6 is located at the end of the opening and closing latch 3.

[0030] In order to facilitate the processing and positioning of the oblong hole, the detection bottom plate 3 is provided with an arc surface positioning hole 7 concentric with the oblong hole 6. The oblong hole is positioned and processed by the arc surface positioning hole 7, and the arc surface positioning hole 7 is eccentrically arranged with the positioning pin 4.

[0031] The through-end shaft 1 is provided with a through-end shaft insertion portion 11 adapted to the oblong hole 6 and a through-end shaft detection portion 12 adapted to the opening and closing contact surface of the opening and closing latch 2. The through-end shaft insertion portion 11 and the through-end shaft detection portion 12 are both cylindrical and coaxially arranged. The diameter of the through-end shaft insertion portion 11 is equal to the width of the oblong hole 6, so that the through-end shaft 1 can slide along the oblong hole 6.

[0032] A through-end shaft operating portion 13 is provided at the upper end of the through-end shaft 1. The through-end shaft operating portion 13 is a square shaft, which is convenient for rotating the through-end shaft 1 by a tool.

[0033] The stop shaft 8 is provided with a stop shaft insertion portion 81 adapted to the oblong hole 6 and a stop shaft detection portion 82 adapted to the opening and closing contact surface of the opening and closing latch 2. The stop shaft insertion portion 81 and the stop shaft detection portion 82 are both cylindrical and coaxially arranged. The diameter of the stop shaft insertion portion 81 is equal to the width of the oblong hole 6, so that the stop shaft 8 can slide along the oblong hole 6.

[0034] The upper end of the stop shaft 8 is provided with a stop shaft operating portion 83 , and the stop shaft operating portion 83 is a square shaft, which is convenient for rotating the stop shaft 8 by a tool.

[0035] The through-end shaft detection part 12 and the stop-end shaft detection part 82 are both cylindrical, the diameter of the stop-end shaft detection part 82 is larger than the diameter of the through-end shaft detection part 12, and a side surface 84 is provided on the side surface of the stop-end shaft detection part 82. The side surface 84 is a plane provided on the circumferential surface. Since a qualified opening and closing latch requires that the through-end shaft detection part 12 cannot be inserted into the opening and closing contact surface position, it is not convenient for accurate detection. The side surface 84 provided in the present application facilitates the insertion of the stop-end shaft insertion part 81 into the oblong hole 6, and then realizes the detection of various positions of the opening and closing contact surface by moving in the oblong hole 6.

[0036] The usage of the utility model:

[0037] The opening and closing latch to be tested is fixed on the detection base plate 3 by the limit pin 5 and the positioning pin 4, and the opening and closing contact surface of the opening and closing latch 2 is tested by the through-end shaft 1 and the stop-end shaft 8 respectively. The distance from the through-end shaft 1 to the center of the opening and closing contact surface is equal to the upper limit of the detection radius of the opening and closing contact surface, so that the through-end shaft 1 can move in the arc-shaped oblong hole 6. When the through-end shaft 1 interferes with the opening and closing contact surface, it proves that the diameter of the opening and closing contact surface is too large.

[0038] The distance between the stop shaft 8 and the center of the separation and combination contact surface is equal to the lower limit of the detection radius of the separation and combination contact surface. During the detection, the avoidance surface 84 is placed on the separation and combination contact surface, and the stop shaft 8 is placed. If the stop shaft 8 cannot rotate, it is proved to be qualified. If the stop shaft 8 can rotate, it is proved that the diameter of the separation and combination contact surface is too small. In this way, the size of the separation and combination contact surface can be quickly detected.

[0039] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved by or by adopting the existing technology, which will not be repeated here. The above embodiments and drawings are only used to illustrate the technical scheme of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not deviate from the purpose of the present invention and should also fall within the scope of protection of the claims of the present invention.

Claims

1. A switch opening and closing latch detection tool, characterized in that: The invention comprises a detection base plate (3), a through-end shaft (1) and a stop-end shaft (8); a positioning pin (4) adapted to a drive shaft mounting hole (21) on a switch-opening and closing latch (2) and a stop pin (5) adapted to a connection hole (22) on the switch-opening and closing latch (2) are fixedly connected to the detection base plate (3); an arc-shaped oblong hole (6) is opened on the detection base plate (3); the center of the oblong hole (6) is concentric with the opening and closing contact surface of the switch-opening and closing latch (2); and a through-end shaft insertion portion (11) adapted to the oblong hole (6) is provided on the through-end shaft (1). and a through-end shaft detection portion (12) adapted to the opening and closing contact surface of the opening and closing latch (2); the stop-end shaft (8) is provided with a stop-end shaft insertion portion (81) adapted to the oblong hole (6) and a stop-end shaft detection portion (82) adapted to the opening and closing contact surface of the opening and closing latch (2); the through-end shaft detection portion (12) and the stop-end shaft detection portion (82) are both cylindrical; the diameter of the stop-end shaft detection portion (82) is larger than that of the through-end shaft detection portion (12); and a side surface of the stop-end shaft detection portion (82) is provided with an avoidance surface (84).

2. A switch opening and closing latch detection tool according to claim 1, characterized in that: A through-end shaft operating portion (13) is provided at the upper end of the through-end shaft (1), and the through-end shaft operating portion (13) is a square shaft.

3. A switch opening and closing latch detection tool according to claim 1, characterized in that: The upper end of the stop shaft (8) is provided with a stop shaft operating portion (83), and the stop shaft operating portion (83) is a square shaft.

4. The switch opening and closing latch detection tooling according to claim 1 is characterized in that: The detection bottom plate (3) is a circular plate.

5. The switch opening and closing latch detection tooling according to claim 1 is characterized in that: The lower end of the positioning pin (4) is provided with a positioning pin positioning shaft which is inserted into the detection base plate (3).

6. The switch opening and closing latch detection tooling according to claim 1 is characterized in that: The lower end of the limit pin (5) is provided with a limit pin positioning shaft which is inserted into the detection base plate (3).

7. The switch opening and closing latch detection tool according to claim 1, characterized in that: The detection bottom plate (3) is provided with an arc-shaped positioning hole (7) which is concentric with the oblong hole (6).

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