Duplex circuit testing machine

Abstract

This application relates to the field of motor testing and discloses a dual-station circuit testing machine, including a detector 1 and a detector 2; a connector for locking the base 1 of detector 1 and the base 2 of detector 2 between them; the connector includes: an upper locking strip and a lower locking strip, the upper locking strip having several upper locking slots on one side and the lower locking strip having several lower locking slots on one side; a triangular locking block located between the upper and lower locking strips; a connecting plate for detachably connecting to the base of one of the detectors, with one end of both the upper and lower locking strips rotatably connected to the connecting plate; and an elastic element fixedly connected between the ends of the upper and lower locking strips near the connecting plate. This application achieves a rigid locking connection between the two testing machines, ensuring the stability of their relative positions, eliminating the need for frequent position adjustments to improve testing efficiency, and ensuring the alignment accuracy of the fixture and the circuit board to reduce testing errors.

Description

Technical Field

[0001] This application relates to the field of motor testing, and more particularly to a dual-station circuit testing machine. Background Technology

[0002] In the batch testing process of motor circuit boards, in order to improve testing efficiency, the industry generally adopts a dual-station testing mode, which involves configuring two identical motor circuit board testing machines. The two testing machines are placed at preset stations on the workbench, and the operator operates the handles of the two testing machines alternately with his left and right hands. That is, when the left hand presses down the handle of the first testing machine to complete a single test, the right hand can simultaneously press down the handle of the second testing machine to achieve parallel testing and shorten the testing cycle of a single circuit board.

[0003] However, the existing installation method of dual-station inspection machines has obvious defects: the two inspection machines are placed in the preset positions on the worktable by their own weight, without any fixed connection structure between them. In actual operation, the operator generates a vertical downward operating force when pressing down the handle. This force is transmitted to the worktable through the inspection machine body. If the friction coefficient between the bottom of the inspection machine and the worktable is low, the inspection machine is prone to lateral or longitudinal displacement along the worktable. After long-term high-frequency operation, the relative position of the two inspection machines will gradually deviate from the preset symmetrical position. This not only requires the operator to frequently pause the inspection process to manually adjust the position of the inspection machines, reducing the overall inspection efficiency, but may also cause a decrease in the alignment accuracy between the fixture and the circuit board due to the displacement of the inspection machines.

[0004] Therefore, how to design a structure that can fix two dual-station motor circuit board testing machines to avoid displacement of the testing machines and ensure testing accuracy and operational safety has become an urgent technical problem to be solved in the current testing process of dual-station circuit testing machines. Summary of the Invention

[0005] This application provides a dual-station circuit testing machine. By setting up a connector including an upper clamping bar, a lower clamping bar, a triangular clamping block, a connecting plate, and an elastic element, a rigid locking connection between two testing machines is achieved, ensuring the stability of their relative positions. This eliminates the need for frequent position adjustments to improve testing efficiency and ensures the alignment accuracy between the fixture and the circuit board to reduce testing errors.

[0006] This application provides a dual-station circuit testing machine, including detector one and detector two, both placed at preset positions on a workbench; a connector for locking and connecting base one of detector one and base two of detector two; wherein the connector includes: an upper locking strip and a lower locking strip, symmetrically arranged, with the upper locking strip having a plurality of upper locking slots on one side facing the lower locking strip, and the lower locking strip having a plurality of lower locking slots on one side facing the upper locking strip; a triangular locking block located between the upper locking strip and the lower locking strip, and used to engage with the upper locking slots and the lower locking slots; a connecting plate for detachably connecting to the base of one detector, the triangular locking block being detachably connected to the base of the other detector, and one end of each of the upper and lower locking strips being rotatably connected to the connecting plate; an elastic element fixedly connected between the ends of the upper and lower locking strips near the connecting plate, the elastic element being used to consistently provide a force that pushes the ends of the upper and lower locking strips away from each other.

[0007] Furthermore, both the upper and lower card slots are right-angled triangles, with one straight side serving as the slot opening and the other straight side perpendicular to the card strip. The hypotenuse is inclined towards one end of the connecting plate. The triangular card block is an equilateral triangle, with two adjacent sides used to engage with the hypotenuses of the upper and lower card slots, respectively.

[0008] Furthermore, both the upper and lower locking strips have a chamfer at the end furthest from the connecting plate, which is used for the triangular locking block to enter between the upper and lower locking strips.

[0009] Furthermore, the upper and lower locking strips have upper and lower grooves respectively on their outer sides near the connecting plate, the upper and lower grooves are connected to each other, and the two ends of the elastic member are respectively fixed in the upper and lower grooves.

[0010] Furthermore, the upper slot and the upper groove near the connecting plate in the upper locking strip are connected by an upper notch, and the lower slot and the lower groove near the connecting plate in the lower locking strip are connected by a lower notch.

[0011] Furthermore, the rotation axis of the upper clip, which is rotatably connected to the connecting plate, is located above the upper notch; the rotation axis of the lower clip, which is rotatably connected to the connecting plate, is located below the lower notch.

[0012] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0013] This application solves the technical problems of existing dual-station circuit testing machines, where the two testing machines rely solely on their own weight to be placed on the worktable, lacking a fixed connection structure. This leads to easy lateral or longitudinal displacement along the worktable surface during operation, resulting in frequent pauses for position adjustments, reduced testing efficiency, decreased alignment accuracy between the fixture and the circuit board causing misjudgments affecting factory quality, and increased operational safety risks due to interference with surrounding mechanisms after displacement. By setting up a connector including an upper locking strip, a lower locking strip, a triangular locking block, a connecting plate, and elastic elements, a rigid locking connection between the two testing machines is achieved, ensuring the stability of their relative positions. This eliminates the need for frequent position adjustments to improve testing efficiency, ensures the alignment accuracy between the fixture and the circuit board to reduce testing errors, avoids interference with surrounding mechanisms to reduce safety risks, and the detachable design of the connector also meets the needs for convenient equipment maintenance or workstation adjustments. Attached Figure Description

[0014] Figure 1 This is an overall schematic diagram of the dual-station circuit testing machine in the embodiments of this application;

[0015] Figure 2 for Figure 1 The enlarged schematic diagram of part A in the middle mainly illustrates the structure of the connector in the locked state;

[0016] Figure 3 for Figure 2 An exploded view of the connector;

[0017] Figure 4 This is the structure of the connector in the unlocked state in the embodiments of this application;

[0018] In the diagram: 1. Detector 1; 11. Base 1; 2. Detector 2; 21. Base 2; 3. Connector; 31. Upper locking strip; 311. Upper locking slot; 312. Upper groove; 313. Upper notch; 32. Lower locking strip; 321. Lower locking slot; 322. Lower groove; 323. Lower notch; 33. Triangular locking block; 34. Connecting plate; 35. Elastic element; 100. Worktable. Detailed Implementation

[0019] To better understand the technical solution of this application, the technical solution of this application will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] like Figure 1As shown, the dual-station circuit testing machine disclosed in this embodiment includes detector 1, detector 2, and connector 3. Detector 1 and detector 2 are motor circuit board testing machines with identical structures. They are placed on the workbench 100 at preset symmetrical positions. Each detector has a base 11 and a base 21 at its bottom that contact the workbench surface. The bases are made of aluminum alloy and have anti-slip rubber pads attached to the bottom to initially increase the coefficient of friction. However, the anti-slip pads alone cannot completely prevent displacement during operation, so the connector 3 is used to achieve a rigid locking connection between the two.

[0021] Connector 3 is the core component for achieving a fixed connection between the two detectors, and its structure is as follows: Figure 2 , Figure 3 As shown, it includes an upper locking strip 31, a lower locking strip 32, a triangular locking block 33, a connecting plate 34, and an elastic element 35.

[0022] The upper locking strip 31 has several upper locking slots 311 evenly distributed on one side facing the lower locking strip 32, and the lower locking strip 32 has several lower locking slots 321 correspondingly distributed on one side facing the upper locking strip 31. Both the upper locking slot 311 and the lower locking slot 321 are right-angled triangular structures, with one straight side forming the slot opening, the other straight side perpendicular to the length of the locking strip, and the hypotenuse inclined at a 45° angle towards the end of the upper locking strip 31 and the lower locking strip 32 closest to the connecting plate 34. Furthermore, both the upper locking strip 31 and the lower locking strip 32 have chamfered ends away from the connecting plate 34. This chamfer guides the triangular locking block 33 smoothly into the space between the two locking strips, preventing jamming.

[0023] The triangular locking block 33 has an equilateral triangular structure, with its two adjacent sides respectively fitting against the hypotenuses of the upper locking slot 311 and the lower locking slot 321, achieving locking and positioning through the surface contact of the hypotenuses. The bottom of the triangular locking block 33 is detachably connected to a pre-set threaded hole on the upper surface of the base 11 of the detector 1 via a hexagonal bolt.

[0024] The connecting plate 34 is detachably connected to the upper surface of the base 21 of the detector 2 by hexagonal bolts. One end of the upper clip 31 and the lower clip 32 are rotatably connected to the connecting plate 34 by the pin 36, ensuring that the clips can rotate flexibly around the pin.

[0025] The elastic element 35 is a cylindrical helical compression spring. The outer surfaces of the upper retaining bar 31 and the lower retaining bar 32 near the connecting plate 34 are respectively provided with an upper groove 312 and a lower groove 322. The upper groove 312 and the lower groove 322 are vertically corresponding and interconnected. The two ends of the elastic element 35 are respectively embedded and welded to the upper groove 312 and the lower groove 322. In the natural state, the elastic element 35 always provides a force that keeps the ends of the upper retaining bar 31 and the lower retaining bar 32 away from each other.

[0026] To avoid interference between the elastic element 35 and the slot, an upper notch 313 connects the first upper slot 311 and the upper groove 312 near the connecting plate 34 in the upper slot 31, and a lower notch 323 connects the first lower slot 321 and the lower groove 322 near the connecting plate 34 in the lower slot 32. The axis of the pin 36 connecting the upper slot 31 and the connecting plate 34 is located above the upper notch 313, and the axis of the pin 36 connecting the lower slot 32 and the connecting plate 34 is located below the lower notch 323.

[0027] Place detector 1 and detector 2 on the preset symmetrical positions of the workbench 100, adjust their relative positions, and then install connector 3. First, fix the connecting plate 34 to the surface of the base 11 with bolts. Then, rotatably connect the upper clip 31 and the lower clip 32 to the connecting plate 34 through the pin 36. Install the elastic element 35 in the upper groove 312 and the lower groove 322. Finally, fix the triangular clip 33 to the base 21 with hexagonal bolts.

[0028] The functional principle of this application can be explained through the following methods:

[0029] During the locking process of detector 1 and detector 2, detector 2 is first placed in a preset position. Then, detector 1 with the triangular locking block 33 is placed on the workbench 100 and slowly moved to one side of detector 2. Before the triangular locking block 33 enters the upper locking strip 31 and the lower locking strip 32, as... Figure 4 As shown, the ends of the upper locking strip 31 and the lower locking strip 32 away from the connecting plate are joined together. When the triangular locking block 33 enters the upper locking strip 31 and the lower locking strip 32, the upper locking groove 311 and the lower locking groove 321 are completely fitted with the two sides of the triangular locking block 33 respectively. The self-locking is achieved by the friction between the inclined edge of the groove and the side of the triangular locking block, thus completing the fixed connection of the two detectors. As detector 1 is slowly moved towards detector 2, the connection between the triangular locking block 33 and the groove at different positions can be changed, thereby enabling different positions of locking between detector 1 and detector 2.

[0030] Therefore, by using connector 3 to achieve a rigid connection between the two detectors, the problem of displacement of existing equipment is completely solved. There is no need to frequently adjust the position, which improves the detection efficiency. The relative position of the two detectors is fixed, which ensures the alignment accuracy of the fixture and the circuit board, avoids misjudgment caused by interruption of detection signal, and ensures the factory quality of the motor circuit board. The detector will not interfere with the surrounding mechanism due to displacement, reducing the safety risk of the operator's hand being pinched.

[0031] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

[0032] The above description is merely a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present application, based on the technical solution and concept of the present application, should be covered within the scope of protection of the present application.

Claims

1. A dual-station circuit testing machine, characterized in that, include Detector 1 (1) and Detector 2 (2) are placed at preset positions on the workbench (100); Connector (3) for locking the connection between base one (11) of detector one (1) and base two (21) of detector two (2); The connector (3) includes: The upper card strip (31) and the lower card strip (32) are symmetrically arranged, and the upper card strip (31) has a number of upper card slots (311) on the side facing the lower card strip (32), and the lower card strip (32) has a number of lower card slots (321) on the side facing the upper card strip (31). A triangular locking block (33) is located between the upper locking strip (31) and the lower locking strip (32), and is used to lock into the upper locking slot (311) and the lower locking slot (321); A connecting plate (34) is detachably connected to the base of one side detector, and the triangular locking block (33) is detachably connected to the base of the other side detector. One end of the upper locking strip (31) and the lower locking strip (32) are rotatably connected to the connecting plate (34). An elastic element (35) is fixedly connected between the ends of the upper clip (31) and the lower clip (32) near the end of the connecting plate (34). The elastic element (35) is used to always provide a force that keeps the ends of the upper clip (31) and the lower clip (32) moving away from each other.

2. The dual-station circuit testing machine as described in claim 1, characterized in that, The upper card slot (311) and the lower card slot (321) are both right triangles, with one straight side being the slot opening and the other straight side being perpendicular to the card strip. The hypotenuse is inclined towards one end of the connecting plate (34). The triangular card block (33) is an equilateral triangle, with two adjacent sides used to be inserted into the hypotenuse of the upper card slot (311) and the lower card slot (321), respectively.

3. The dual-station circuit testing machine as described in claim 2, characterized in that, Both the upper clip (31) and the lower clip (32) have chamfered ends away from the connecting plate (34), which are used for the triangular clip (33) to enter between the upper clip (31) and the lower clip (32).

4. The dual-station circuit testing machine as described in claim 1, characterized in that, The upper retaining strip (31) and the lower retaining strip (32) have an upper groove (312) and a lower groove (322) respectively on their outer sides near the end of the connecting plate (34). The upper groove (312) and the lower groove (322) are connected to each other. The two ends of the elastic member (35) are respectively fixed in the upper groove (312) and the lower groove (322).

5. The dual-station circuit testing machine as described in claim 4, characterized in that, The upper slot (311) near the connecting plate (34) of the upper clip (31) is connected to the upper groove (312) with an upper notch (313), and the lower slot (321) near the connecting plate (34) of the lower clip (32) is connected to the lower groove (322) with a lower notch (323).

6. The dual-station circuit testing machine as described in claim 5, characterized in that, The rotation axis of the upper clip (31) that is rotatably connected to the connecting plate (34) is located above the upper notch (313); the rotation axis of the lower clip (32) that is rotatably connected to the connecting plate (34) is located below the lower notch (323).

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