Test tool for quick-heating circuit board of water dispenser

Abstract

The utility model relates to a test tool for a quick-heating circuit board of a water dispenser, and aims to solve the technical problems that the edge of the circuit board is abraded and the positioning efficiency is low due to the current traditional clamping, and the traditional clamp usually needs to be manually turned over for clamping again and is relatively inconvenient, the test tool comprises a box body, the two sides of the top of the box body are fixedly connected with a supporting table, and the supporting table is provided with a clamping groove. A positioning frame is arranged on the inner side of the supporting table, miniature electric suction cups are embedded in the two sides of the bottom of the inner side wall of the positioning frame, positioning rods are fixedly connected to the four corners of the bottom of the inner side wall of the positioning frame, a fixing frame is arranged in an inner cavity of the positioning frame, positioning holes are formed in the four corners of the outer side wall of the fixing frame, and a gear is arranged on one side of the supporting table. One side of the top of the box body is fixedly connected with a fixing block, a fixing piece is arranged above the fixing block, the edge of the circuit board is fully protected, positioning can be rapidly carried out, the efficiency is high, the effect of rapidly detecting the two faces of the circuit board can be achieved, and convenience is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to test equipment field, concretely for a kind of test tool for water dispenser fast heating circuit board. BACKGROUND

[0002] Circuit board test tool is the special equipment or tool for the performance test, function detection and fault diagnosis of circuit board, through the comprehensive test of circuit board, the short circuit, open circuit, component damage, poor welding etc. that circuit board may exist in production process are found in time, ensure product quality, reduce the rate of defective products, can quickly, accurately complete each test to circuit board, greatly improve test efficiency, save manual test time and cost.

[0003] The patent document with the application number CN222420279U discloses a test rack for circuit board test tool, which comprises a base, two one-way screws are rotatably arranged on the top of the rear end of the base through adjusting mechanisms, and a horizontal rod is screw-connected and installed between the two one-way screws. The probe is arranged inside the horizontal plate through a spring. After the horizontal plate drives the probe to descend and contact the circuit board, the probe extends and retracts inside the horizontal plate, so that the probe breakage or circuit board damage can be prevented, and the utility is high. By moving the moving plate to the two sides, the limiting plate can extrude the clamping block, so that the clamping block moves in the forward and backward directions, and different specifications of circuit boards can be clamped and limited conveniently. The horizontal plate and the probe can be replaced by disassembling the horizontal plate through the bidirectional screw and the clamping plate, so that the horizontal plate with different position probes can be replaced according to different circuit boards.

[0004] However, in actual application, when the traditional device clamps the circuit board, the clamping device is driven by the driving equipment to clamp the circuit board inwardly. This method is easy to cause edge wear of the circuit board, and the positioning efficiency of the circuit board is low. Meanwhile, during the test of the double sides of the circuit board, the traditional clamp usually needs to be manually turned over and clamped again, which is inconvenient.

[0005] For example, during the test, the tester moves the moving plate to extrude the clamping block, and fixes the circuit board when the clamping block moves. When the clamping block moves, there is no certain pressure, and the pressure between the clamping block and the circuit board is too large, which can cause edge wear of the circuit board. The clamping block is slowly driven to move, the clamping pressure is manually determined, the positioning is slow, the efficiency is low, and when one side is tested, the tester needs to loosen the clamping block, manually turn over the circuit board, make the side to be tested face upward, and then perform the positioning and clamping operation again, which is inconvenient. UTILITY MODEL CONTENTS

[0006] The utility model discloses a purpose is to overcome the prior art's insufficient, adapt to the reality needs, provide a kind of for water dispenser fast heating circuit board's test tool, to solve the current traditional clamping causes circuit board edge wear, positioning efficiency is low, traditional fixture usually needs artificial to turn over and clamps again, more inconvenient technical problem.

[0007] In order to realize the utility model's purpose, the utility model employs technical scheme as follows: design a kind of for water dispenser fast heating circuit board's test tool, including box, the top two sides of the box are fixedly connected with support table, the inside of the support table is equipped with positioning frame, the inside wall bottom of the positioning frame is embedded with miniature electric suction cup, the inside wall bottom of the positioning frame is fixedly connected with positioning rod in four corners, the inner chamber of the positioning frame is equipped with fixed frame, the outside wall four corners of the fixed frame are opened with positioning hole;

[0008] The side of the support table is equipped with gear, the top side of the box is fixedly connected with fixed block, the top of the fixed block is equipped with fixed part, the inner chamber of the fixed part is fixedly connected with rack, the other side of the top of the fixed block is fixedly connected with electric push rod.

[0009] In the scheme, the circuit board is clamped in the protection groove of the fixed frame, the positioning hole on the fixed frame is inserted to the positioning rod on the positioning frame, and the miniature electric suction cup is started to firmly adsorb the fixed frame as a whole, without mechanical clamping, the circuit board edge is fully protected, positioning can be quickly carried out, and the efficiency is high;

[0010] The electric push rod is started to extend to drive the guide block, the fixed part and the rack to move, the rack is engaged with the gear, the gear is rotated by half a circle, the positioning frame is turned over by one hundred and eighty degrees as a whole, the effect that the double sides of the circuit board are quickly detected is achieved, and it is more convenient.

[0011] The top two sides of the box are inserted with bearing, the inner chamber of the bearing is inserted with screw rod, one end of the screw rod is fixedly connected with turbine, the tooth end of the turbine is engaged with worm, the tail ends of the worm are fixedly connected with connecting rod, one end of the worm is fixedly connected with handle.

[0012] In actual application, the handle is rotated to drive the worm to rotate, the worm is engaged with the worm to rotate, the screw rod is driven to rotate, the horizontal rotation is converted into vertical rotation, compared with directly rotating the screw rod, the staff is more convenient and labor-saving.

[0013] The outside wall of the connecting rod is slidably connected with support block, and the support block is fixedly connected to the inside wall of the box, the tooth end of the screw rod is threadedly connected with screw sleeve, the inner ends of the screw sleeve are fixedly connected with connecting plate, the bottom of the connecting plate is fixedly connected with control box, the bottom end of the control box is fixedly connected with test probe.

[0014] In actual application, through the screwing between the screw sleeve and the screw rod, when the screw rod rotates, the screw sleeve, the connecting plate, the control box and the test probe are lifted as a whole, which is convenient for moving, and the circuit board is tested through the control box and the test probe.

[0015] The inner side wall of the fixed frame is provided with a protection groove, the positioning rod is inserted into the inner cavity of the positioning hole, and the fixed frame is made of silica gel.

[0016] In actual application, the fixed frame made of silica gel has good ductility, can be quickly placed into the circuit board, and can protect the edge of the circuit board.

[0017] The outer side wall of the positioning frame is fixedly connected with transmission rods on both sides, the gear is sleeved on one end of the transmission rod, the inner side wall of the positioning frame is provided with a through hole in the bottom, and the tail end of the transmission rod is rotationally connected with the support table.

[0018] In actual application, the transmission rod and the gear are connected, so that the gear can drive the positioning frame to rotate as a whole when the gear rotates.

[0019] The top side of the fixed block is fixedly connected with a sliding rail, the inner cavity of the sliding rail is slidably connected with a sliding block, the bottom end of the fixed part is fixedly connected with the connecting end of the sliding block, the output end of the electric push rod is fixedly connected with a guide block, the guide block and the output end of the electric push rod are clamped with a limiting piece, and one end of the guide block is fixedly connected with one side of the outer side wall of the fixed part.

[0020] In actual application, when the fixed block and the rack move as a whole, the sliding block slides in the sliding rail, the stability of the movement of the fixed block is improved, and the teeth of the rack and the gear are prevented from being disengaged.

[0021] Compared with the prior art, the utility model has the advantages that:

[0022] 1. The fixed frame is provided with a positioning hole and a protection groove, so that the circuit board can be directly clamped in the fixed frame and fixed, the fixed frame is made of silica gel and protects the circuit board, the positioning hole and the positioning rod on the positioning frame are used for quick positioning, and the fixed frame as a whole is fixed by a micro electric suction cup, the positioning mode does not need mechanical clamping, fully protects the edge of the circuit board, can quickly position, and is high in efficiency.

[0023] 2. The positioning frame is provided with a through hole, so that the circuit board is exposed on both sides during positioning, the electric push rod drives the guide block, the fixed part and the rack to move, the rack is engaged with the gear, the positioning frame is stably turned over, the effect of quickly detecting both sides of the circuit board is achieved, and the utility model is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the cross section structure schematic view of the utility model;

[0025] Figure 2 It is the fixed frame structure schematic view of the utility model;

[0026] Figure 3 It is the positioning frame structure schematic view of the utility model;

[0027] Figure 4 It is the rack structure schematic view of the utility model.

[0028] Figure 5 It is the Figure 1 Amplification structure schematic view of A place in the middle.

[0029] In the figure, 100, box body;110, bearing;120, screw;130, turbine;140, worm;141, connecting rod;Handle, 142;150, support block;160, screw sleeve;170, connecting plate;180, control box;190, test probe;

[0030] 200, support table;210, positioning frame;220, through hole;230, micro electric suction cup;240, positioning rod;250, transmission rod;260, gear;

[0031] 300, fixed frame;310, positioning hole;320, protection groove;

[0032] 400, fixed block;410, slide rail;420, sliding block;430, fixed part;440, rack;450, electric push rod;460, guide block;470, limiting part. DETAILED DESCRIPTION

[0033] The utility model is further explained in connection with the drawings and examples:

[0034] Example: a kind of test tool for water dispenser fast heating circuit board, refer to Figures 1 to 3, including the box 100, the top of the box 100 is fixedly connected with the support table 200, the inner side of the support table 200 is provided with the positioning frame 210, the inner side wall bottom of the positioning frame 210 is inlaid with the micro electric suction cup 230, the inner side wall bottom of the positioning frame 210 is fixedly connected with the positioning rod 240, the inner cavity of the positioning frame 210 is provided with the fixed frame 300, the outer side wall four corners of the fixed frame 300 are provided with the positioning hole 310, the outer side wall of the positioning frame 210 is fixedly connected with the transmission rod 250, and the gear 260 is sleeved on one end of the transmission rod 250, the bottom of the inner side wall of the positioning frame 210 is provided with the through hole 220, the distal end of the transmission rod 250 is rotatably connected with the support table 200, the inner side wall of the fixed frame 300 is provided with the protection groove 320, the positioning rod 240 is inserted into the inner cavity of the positioning hole 310, and the fixed frame 300 is made of silica gel;

[0035] When the circuit board is positioned, the circuit board is clamped in the protection groove 320 of the fixed frame 300, the positioning hole 310 on the fixed frame 300 is inserted into the positioning rod 240 on the positioning frame 210, and the micro electric suction cup 230 is started to firmly adsorb the fixed frame 300 as a whole.

[0036] For example, during the test, the test personnel moves the moving plate to enable the limiting plate to extrude the clamping block, and the clamping block fixes the circuit board when moving, and there is no certain pressure between the clamping block and the circuit board, and the pressure between the clamping block and the circuit board is too large, which can cause the circuit board to be abraded at the edge, the clamping block is slowly driven to move, the clamping pressure is manually determined, the positioning is slow, and the efficiency is low, and in the application, the circuit board is arranged in the fixed frame 300 made of silica gel, and rapid positioning is performed between the positioning hole 310 on the fixed frame 300 and the positioning rod 240 on the positioning frame 210, and the micro electric suction cup 230 is used for adsorption and fixation, so that the edge of the circuit board is fully protected, the positioning can be rapidly performed, and the efficiency is high.

[0037] Specifically, referring to Figure 1 The inner cavity of the bearing 110 is inserted with the screw rod 120, one end of the screw rod 120 is fixedly connected with the turbine 130, the tooth end of the turbine 130 is engaged with the worm 140, the distal ends of the worm 140 are fixedly connected with the connecting rod 141, one end of the worm 140 is fixedly connected with the handle 142, the worm 140 is rotated by rotating the handle 142, the worm 140 is engaged with the worm 140 to rotate, the screw rod 120 is driven to rotate, the horizontal rotation is converted into the vertical rotation, and compared with directly rotating the screw rod 120, the worker is more convenient and labor-saving.

[0038] Further, referring to Figure 1The outer side wall of the connecting rod 141 is slidably connected with a supporting block 150, and the supporting block 150 is fixedly connected to the inner side wall of the box body 100. The toothed end of the screw rod 120 is threadedly connected with a screw sleeve 160. The inner ends of the screw sleeve 160 are fixedly connected with a connecting plate 170. The bottom of the connecting plate 170 is fixedly connected with a control box 180. The bottom end of the control box 180 is fixedly connected with a test probe 190. The screw sleeve 160 is screwed with the screw rod 120. When the screw rod 120 rotates, the screw sleeve 160, the connecting plate 170, the control box 180 and the test probe 190 are lifted as a whole, so that the circuit board can be conveniently moved and tested by the control box 180 and the test probe 190.

[0039] Referring to Figure 1 、 Figure 4 and Figure 5 , one side of the supporting table 200 is provided with a gear 260. The top side of the box body 100 is fixedly connected with a fixed block 400. The upper side of the fixed block 400 is provided with a fixed part 430. The inner cavity of the fixed part 430 is fixedly connected with a rack 440. The other side of the top of the fixed block 400 is fixedly connected with an electric push rod 450. The top side of the fixed block 400 is fixedly connected with a sliding rail 410. The inner cavity of the sliding rail 410 is slidably connected with a sliding block 420. The bottom end of the fixed part 430 is fixedly connected with the connecting end of the sliding block 420. The output end of the electric push rod 450 is fixedly connected with a guide block 460. The guide block 460 is clamped with a limiting part 470 between the output end of the electric push rod 450. One end of the guide block 460 is fixedly connected with one side of the outer side wall of the fixed part 430.

[0040] When the staff tests the circuit board and needs to test the other side after completely positioning the circuit board, the electric push rod 450 is started to extend to drive the guide block 460, the fixed part 430 and the rack 440 to move. The rack 440 is engaged with the gear 260. When the fixed block 400 and the rack 440 move as a whole, the sliding block 420 slides in the sliding rail 410 to drive the gear 260 to rotate by half a circle. The positioning frame 210 is flipped by one hundred and eighty degrees as a whole.

[0041] For example, the traditional clamp usually needs to be manually flipped and clamped again, which is relatively inconvenient. The rack 440 is engaged with the gear 260 in the application. The gear 260 and the positioning frame 210 are flipped as a whole by driving the rack 440 to move by the electric push rod 450. The through hole 220 is arranged in the positioning frame 210, so that the circuit board is exposed on both sides when positioned, achieving the effect of quickly detecting the double sides of the circuit board, which is relatively convenient

[0042] It should be noted that the micro electric suction cup 230 and the electric push rod 450 mentioned in the text are existing searchable technologies.

[0043] The micro electric suction cup is ELE-P20 / 15, and its working principle is that when the electric vacuum pump in the micro electric suction cup is started, the air in the micro electric suction cup is extracted, so that the air pressure in the micro electric suction cup is lower than the atmospheric pressure. Under the action of the atmospheric pressure, the micro electric suction cup is tightly attached to the surface of the object. The negative pressure state is continuously maintained through the electric system, so that the micro electric suction cup is stable during the suction process. When the object needs to be released, the work of the electric pump is interrupted through a simple switch operation, so that the external air reenters the micro electric suction cup, the internal and external air pressures are balanced, and the micro electric suction cup is separated from the object.

[0044] The electric push rod 450 is HOODLAND micro electric push rod, and its working principle is that the output end of the electric push rod is stretched to the maximum stroke and then retracted, which is driven by the motor, the transmission and control system and the limiting device, the motor provides power, the rotation is converted into linear motion through the lead screw and gear rack transmission, the control system controls the forward and reverse rotation and the rotation speed of the motor, and the limiting device triggers a signal at the maximum stroke to stop the forward rotation of the motor and reverse the motor to retract the push rod.

[0045] The control box 180 for detecting the circuit board of the water dispenser in the application is composed of a multimeter, an oscilloscope, a logic analyzer, a signal generator, a power supply controller and a digital signal processor. The multimeter is used to measure the voltage, current and resistance parameters, the oscilloscope is used to observe the signal waveform, the logic analyzer is used to analyze the logic state of the digital signal, the signal generator is used to generate various test signals, the power supply provides stable working voltage for the circuit board, and the digital signal processor is used to set test parameters and switch test channels.

[0046] In addition, the components designed in the utility model are general standard components or components known by those skilled in the art, the structure and principle of which can be known by the technical personnel through a technical manual or through a conventional experimental method, and the technical personnel in the art can completely realize it without further description. The content protected by the utility model does not involve improvement of the internal structure and method.

[0047] The embodiments of the utility model disclose preferred embodiments, but are not limited to this, and those skilled in the art can easily understand the spirit of the utility model according to the above-mentioned embodiments, and make different inferences and changes, as long as they do not deviate from the spirit of the utility model, which are within the protection scope of the utility model.

Claims

1. A test tool for the rapid heating circuit board of a water dispenser, comprising a box (100), characterized in that, The top of the box (100) is fixedly connected with support table (200), the inner side of support table (200) is equipped with positioning frame (210), the inner side wall bottom of positioning frame (210) is embedded with micro electric suction cup (230), the inner side wall bottom of positioning frame (210) is fixedly connected with positioning rod (240), the inner cavity of positioning frame (210) is equipped with fixed frame (300), the outer side wall of fixed frame (300) is provided with positioning hole (310) in four corners, The side of support table (200) is provided with gear (260), the top of box (100) is fixedly connected with fixed block (400), the top of fixed block (400) is provided with fixed part (430), the inner cavity of fixed part (430) is fixedly connected with rack (440), the other side of top of fixed block (400) is fixedly connected with electric push rod (450).

2. A test fixture for a speed heating circuit board of a water dispenser as claimed in claim 1, wherein, The top of the box (100) is inserted with bearing (110) on both sides, the inner cavity of bearing (110) is inserted with screw rod (120), one end of screw rod (120) is fixedly connected with turbine (130), the tooth end of turbine (130) is engaged with worm (140), the distal end of worm (140) is fixedly connected with connecting rod (141), one end of worm (140) is fixedly connected with handle (142).

3. A test fixture for a speed heating circuit board of a water dispenser as claimed in claim 2, wherein, The outer side wall of connecting rod (141) is slidingly connected with support block (150), and the support block (150) is fixedly connected to the inner side wall of the box (100), the tooth end of the screw rod (120) is threadedly connected with the screw sleeve (160), the inner end of the screw sleeve (160) is fixedly connected with the connecting plate (170), the bottom of the connecting plate (170) is fixedly connected with the control box (180), the bottom end of the control box (180) is fixedly connected with the test probe (190).

4. A test fixture for a speed heating circuit board of a water dispenser as claimed in claim 1, wherein, The inner side wall of the fixed frame (300) is provided with a protection groove (320) around, the positioning rod (240) is inserted into the inner cavity of the positioning hole (310), the fixed frame (300) is made of silica gel material.

5. A test fixture for a speed heating circuit board of a water dispenser as claimed in claim 1, wherein, The outer side wall of the positioning frame (210) is fixedly connected with transmission rod (250) on both sides, and the gear (260) is sleeved on one end of the transmission rod (250), the bottom of the inner side wall of the positioning frame (210) is provided with a through hole (220), and the distal end of the transmission rod (250) is rotatably connected with the support table (200).

6. A test fixture for a speed heating circuit board of a water dispenser as claimed in claim 1, wherein, The top of the fixed block (400) is fixedly connected with slide rail (410), the inner cavity of the slide rail (410) is slidingly connected with slide block (420), and the bottom end of the fixed part (430) is fixedly connected with the connecting end of the slide block (420), the output end of the electric push rod (450) is fixedly connected with the guide block (460), the guide block (460) is connected between the output end of the electric push rod (450) and the limit piece (470), and one end of the guide block (460) is fixedly connected with the outer side wall of the fixed part (430).

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