Test positioning system for needle flame test

Abstract

The utility model discloses a test positioning system for a needle flame test, which comprises an experiment box body, and an experiment cavity is arranged on one side of the experiment box body. A workbench is arranged in the experiment cavity and comprises a first telescopic frame, a second telescopic frame, a needle flame test piece, a first positioning mechanism, a second positioning mechanism, a data collection module and an operation module. The infrared positioning device is installed on the side edge of the original needle flame burner device, and after the burner moves to the corresponding test position and meets the test distance, infrared induction automatically starts timing, so that the human influence factors in the test process are low, the test result is more accurate, the test process is recorded through the camera, and the test efficiency is improved. The combustion process of the experimental sample in the needle flame test can be slowly analyzed through playback, so that experimenters are liberated, and the experimenters do not need to stand outside the experimental box body frequently to record data.

Description

TECHNICAL FIELD

[0001] The utility model relates to needle flame test technical field especially relates to a needle flame test's test positioning system. BACKGROUND

[0002] The needle flame test is a kind of test method for evaluating the flame retardant performance of electrical and electronic equipment when suffering small flame contact. It is carried out according to IEC60695-11-5, GB / T5169.5 and other standards, by using specific size Φ0.9mm needle burner, filling butane gas, and burning the sample at 45° angle, observing the ignition condition, burning time and burning length of the sample, to evaluate the ignition risk of the equipment to small flame under fault condition. In the original needle flame test, the size is manually clamped and the time is manually counted, which has large error, and the state of relevant test position needs to be adjusted according to different test position size requirements, which needs to spend a lot of time and manpower to observe and record, and the workload is large. UTILITY MODEL CONTENT

[0003] The utility model aims at providing a needle flame test's test positioning system.

[0004] In order to achieve the above purpose, the utility model adopts the following scheme:

[0005] A kind of needle flame test's test positioning system, including experimental box body, experimental cavity is arranged in the side of the experimental box body, workbench is arranged in the experimental cavity, guide groove is arranged on the workbench, moving plate is arranged on the guide groove:

[0006] First telescopic frame, first telescopic frame is arranged in the workbench located moving plate moving direction side, clamp for clamping experimental sample is arranged in the first telescopic frame near moving plate side;

[0007] Second telescopic frame, second telescopic frame is arranged on the moving plate, mounting head is arranged on the top of the second telescopic frame;

[0008] Needle flame test piece, which is composed of flame needle, igniter and temperature measuring instrument arranged on the mounting head, the flame needle can directional combustion experiment sample;

[0009] First positioning mechanism, scale plate is arranged on the moving plate, first positioning mechanism for positioning the burning surface position of experimental sample needing directional combustion is arranged on the top of the scale plate;

[0010] Second positioning mechanism, second positioning mechanism for positioning the current position height of flame needle ignition flame tip preliminary contact burning surface is arranged in the mounting head near scale plate side;

[0011] A data collection module is arranged in the experimental cavity for collecting data changes when the experimental sample is combusted by the flame needle;

[0012] An operation module is arranged on the experimental box for assisting the experimental personnel to perform the needle flame combustion test on the experimental sample, in the needle flame test, in order to obtain more accurate test data, the error caused by human positioning is installed with an infrared positioning device on the side of the original needle flame burner device, after the burner is moved to the corresponding test position and the test distance is met, the infrared induction automatically starts timing, so that the human influence factor in the test process is low, and the test result is more accurate, the process during the experiment is recorded by the camera, the combustion process of the experimental sample in the needle flame test can be slowly analyzed through playback, so that the experimental personnel are liberated, and the experimental personnel do not need to stand outside the experimental box to record data.

[0013] As a further aspect of the utility model, the first telescopic frame includes a first vertical rod fixed on the workbench, a first sleeve is sleeved on the first vertical rod, a connector is arranged at the top of the first sleeve, a horizontal rod is transversely connected to the connector, the clamp is arranged at one end of the horizontal rod close to the moving plate, a first threaded rod is rotatably arranged on the workbench, a first threaded cylinder is fixed on the first sleeve, the first threaded cylinder is threadedly connected with the first threaded rod, a first bevel gear is fixed on the first threaded rod, a first motor is fixed on the workbench, and a second bevel gear meshable with the first bevel gear is fixed to the output end of the first motor.

[0014] As a further aspect of the utility model, the clamp includes an inverted U-shaped clamping block fixed at one end of the horizontal rod close to the moving plate, anti-skid blocks are arranged at both ends of the inverted U-shaped clamping block, a first threaded hole and a through hole are arranged at both ends of the inverted U-shaped clamping block, respectively, a bolt is passed through the through hole, and one end of the bolt is connected with the first threaded hole.

[0015] As a further aspect of the utility model, the second telescopic frame includes a second vertical rod fixed on the moving plate, a second sleeve is sleeved on the second vertical rod, a second threaded rod is rotatably arranged on the moving plate, a second threaded cylinder is fixed on the second sleeve, the second threaded cylinder is threadedly connected with the second threaded rod, a third bevel gear is fixed on the second threaded rod, a second motor is fixed on the moving plate, and a fourth bevel gear meshable with the third bevel gear is fixed to the output end of the second motor.

[0016] As a further aspect of the utility model, the mounting head is provided at the top of the second sleeve, the mounting head is provided in a hollow manner, the flame needle is arranged in the mounting head, the flame end of the flame needle is inclined upward and extends out of the mounting head, an air inlet pipe is arranged at the bottom of the flame needle, the air inlet end of the air inlet pipe is connected with an external gas cylinder, the igniter is arranged in the mounting head, the electric fire end of the igniter extends to the flame end of the flame needle, and the temperature measuring instrument is arranged on the side wall of the mounting head, and the temperature sensing end of the temperature measuring instrument extends to the flame end of the flame needle.

[0017] As a further aspect of the utility model, a second threaded hole is arranged on the moving plate and extends through both ends of the moving plate, fixed blocks are arranged on both sides of the guide groove on the workbench, a third threaded rod is rotatably arranged between the fixed blocks, the third threaded rod extends through the second threaded hole and is threadedly connected with the second threaded hole, and a third motor is connected to one end of the third threaded rod.

[0018] As a preferred aspect of the utility model, the first positioning mechanism comprises a first infrared sensor arranged at the top of the scale plate, and a laser part of the first infrared sensor extends to the direction of the clamp.

[0019] As a further aspect of the utility model, the second positioning mechanism comprises a second infrared sensor arranged in the mounting head, and a laser part of the second infrared sensor extends out of the mounting head and extends to the direction of the scale plate.

[0020] As a preferred aspect of the utility model, the data collection module comprises a support arranged on the workbench, and a camera is arranged on the support, and a lens of the camera extends to the direction of the clamp.

[0021] As a preferred aspect of the utility model, the operation module comprises a display screen arranged on the outer wall of the experiment box body, a plurality of operation buttons are sequentially arranged below the display screen, and a control circuit, a memory and a timer are integrated on the display screen.

[0022] In summary, the utility model has the beneficial effects that, in the needle flame test, in order to obtain more accurate test data, the error caused by human positioning is reduced, an infrared positioning device is arranged on the side of the original needle flame burner device, the burner is moved to the corresponding test position, the infrared sensor is automatically started after the test distance is met, the human influence factor in the test process is low, the test result is more accurate, the process during the experiment is recorded by the camera, the combustion process of the experimental sample in the needle flame test can be analyzed slowly through playback, and therefore the experimental personnel are liberated and do not need to record data outside the experiment box body. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1The utility model discloses a stereogram.

[0024] Figure 2 The utility model discloses a stereogram behind the hidden experiment box.

[0025] Figure 3 The utility model discloses a first exploded view.

[0026] Figure 4 The utility model discloses a second exploded view.

[0027] Figure 5 The utility model discloses Figure 2 An enlarged view of position A.

[0028] Figure 6 The utility model discloses Figure 3 An enlarged view of position B.

[0029] Figure 7 The utility model discloses Figure 3 An enlarged view of position C.

[0030] Explanation of reference numerals: 1, experiment box, 2, experiment cavity, 3, workbench, 4, guide groove, 5, moving plate, 20, first telescopic support, 30, clamp, 60, second telescopic support, 6, mounting head, 7, flame needle, 8, igniter, 9, temperature measuring instrument, 40, needle flame test piece, 50, first positioning mechanism, 911, scale plate, 200, second positioning mechanism, 70, data collection module, 80, operation module, 21, first vertical rod, 22, first sleeve, 23, connector, 24, cross rod, 25, first threaded rod, 26, first threaded cylinder, 27, first bevel gear, 28, first motor, 29, second bevel gear, 31, inverted U-shaped clamping block, 32, antiskid block, 33, first threaded hole, 34, through hole, 35, bolt, 61, second vertical rod, 62, second sleeve, 63, second threaded rod, 64, second threaded cylinder, 65, third bevel gear, 66, second motor, 67, fourth bevel gear, 68, air inlet pipe, 91, second threaded hole, 92, fixed block, 93, third threaded rod, 94, third motor, 51, first infrared sensor, 201, second infrared sensor, 71, support, 72, camera, 81, display screen, 82, operation button. DETAILED DESCRIPTION

[0031] The following detailed implementation provides a plurality of different embodiments or examples for implementing the utility model. Of course, these are only examples and are not intended to be limiting. In addition, repeated reference numerals can be used in different embodiments, such as repeated numbers and / or letters. These repetitions are for the simple and clear description of the utility model, and do not represent a specific relationship between the different embodiments and / or structures discussed.

[0032] Moreover, where spatially relative terms are used, such as "beneath", "below", "lower", "above", "upper", and the like, they are used for ease of describing the aspects of the application to convey the relative position of one element or feature to another element or feature as illustrated in the figures and are not intended to convey an absolute position of an element or feature. The apparatus can be rotated to different degrees of orientation or other orientations, and the spatially relative terms used herein are intended to encompass such changes in orientation of the apparatus. The spatially relative terms are intended to encompass different orientations of the apparatus in use or operation, for example, in use, the apparatus can be rotated to different degrees of orientation or other orientations, and the spatially relative terms used herein are intended to encompass such changes in orientation of the apparatus. The terms "first", "second", "third", "fourth", etc. are used herein only to describe one element or feature from another element or feature, and do not imply a relative importance or a specific number of elements or features. Thus, a feature defined with "first", "second", "third", "fourth" etc. can include one or more such features.

[0033] The utility model will be further described below in combination with the description and specific embodiments of the drawings: as Figures 1 to 7 A needle flame test test positioning system is shown, which comprises an experimental box 1, an experimental cavity 2 is arranged on one side of the experimental box 1, a workbench 3 is arranged in the experimental cavity 2, a guide groove 4 is arranged on the workbench 3, and a moving plate 5 is arranged on the guide groove 4:

[0034] The first telescopic frame 20 is arranged on one side of the workbench 3 in the moving direction of the moving plate 5, and a clamp 30 for clamping the experimental sample is arranged on the side close to the moving plate 5 of the first telescopic frame 20.

[0035] The second telescopic frame 60 is arranged on the moving plate 5, and the mounting head 6 is arranged on the top of the second telescopic frame 60.

[0036] The needle flame test piece 40 is composed of a flame needle 7, an igniter 8 and a temperature measuring instrument 9 arranged on the mounting head 6, and the flame needle 7 can direct the combustion of the experimental sample.

[0037] The first positioning mechanism 50 is arranged on the scale plate 911 of the moving plate 5, and the first positioning mechanism 50 for positioning the position of the combustion surface of the experimental sample needing directional combustion is arranged on the top of the scale plate 911.

[0038] The second positioning mechanism 200 is arranged on the side close to the scale plate 911 of the mounting head 6, and the second positioning mechanism 200 for positioning the current position height of the flame tip of the flame needle 7 after ignition to preliminarily contact the combustion surface is arranged.

[0039] The data collection module 70 is arranged in the experimental cavity 2, and the data collection module 70 for collecting the data change of the experimental sample when burned by the flame needle 7 is arranged.

[0040] The operation module 80 is arranged on the experimental box 1 and is used for assisting an experimental operator to perform a needle flame combustion test on the experimental sample.

[0041] Further, in the first telescopic frame 20, the first telescopic frame 20 comprises a first vertical rod 21 fixed on the workbench 3, a first sleeve 22 sleeved on the first vertical rod 21, a connector 23 arranged on the top of the first sleeve 22, a horizontal rod 24 transversely connected to the connector 23, the clamp 30 arranged on one end of the horizontal rod 24 close to the moving plate 5, a first threaded rod 25 rotatably arranged on the workbench 3, a first threaded cylinder 26 fixed on the first sleeve 22, the first threaded cylinder 26 being threadedly connected to the first threaded rod 25, a first bevel gear 27 fixed on the first threaded rod 25, and a first motor 28 fixed on the workbench 3, the output end of the first motor 28 being fixed with a second bevel gear 29 capable of meshing with the first bevel gear 27.

[0042] Further, in the clamp 30, the clamp 30 comprises an inverted U-shaped clamping block 31 fixed on one end of the horizontal rod 24 close to the moving plate 5, anti-skid blocks 32 arranged at two ends of the inverted U-shaped clamping block 31, respectively, a first threaded hole 33 and a through hole 34 arranged at the two ends of the inverted U-shaped clamping block 31, respectively, and a bolt 35 penetrating through the through hole 34, one end of the bolt 35 being connected to the first threaded hole 33.

[0043] Further, in the second telescopic frame 60, the second telescopic frame 60 comprises a second vertical rod 61 fixed on the moving plate 5, a second sleeve 62 sleeved on the second vertical rod 61, a second threaded rod 63 rotatably arranged on the moving plate 5, a second threaded cylinder 64 fixed on the second sleeve 62, the second threaded cylinder 64 being threadedly connected to the second threaded rod 63, a third bevel gear 65 fixed on the second threaded rod 63, a second motor 66 fixed on the moving plate 5, and a fourth bevel gear 67 fixed on the output end of the second motor 66 and capable of meshing with the third bevel gear 65.

[0044] Further, in the mounting head 6, the mounting head 6 is arranged on the top of the second sleeve 62, the mounting head 6 is hollow, the flame needle 7 is arranged in the mounting head 6, the spraying end of the flame needle 7 is inclined upward and extends out of the mounting head 6, an air inlet pipe 68 is arranged at the bottom of the flame needle 7, the air inlet end of the air inlet pipe 68 is connected to an external gas cylinder, the igniter 8 is arranged in the mounting head 6, the electric fire end of the igniter 8 extends to the spraying end of the flame needle 7, and the temperature measuring instrument 9 is arranged on the side wall of the mounting head 6, the temperature sensing end of the temperature measuring instrument 9 extends to the spraying end of the flame needle 7.

[0045] The further embodiment of the mobile plate 5 in the utility model is: a second threaded hole 91 is arranged on the mobile plate 5 and penetrates through both ends of the mobile plate 5, fixed blocks 92 are arranged on both sides of the guide groove 4 on the workbench 3, a third threaded rod 93 is rotatably arranged between the fixed blocks 92, the third threaded rod 93 penetrates through the second threaded hole 91 and is screw-connected with the second threaded hole 91, and a third motor 94 is connected to one end of the third threaded rod 93.

[0046] The further embodiment of the first positioning mechanism 50 in the utility model is: the first positioning mechanism 50 comprises a first infrared sensor 51 arranged on the top of the scale plate 911, and a laser part of the first infrared sensor 51 extends to the direction of the clamp.

[0047] The further embodiment of the second positioning mechanism 200 in the utility model is: the second positioning mechanism 200 comprises a second infrared sensor 201 arranged in the mounting head 6, and a laser part of the second infrared sensor 201 extends to the direction of the scale plate 911.

[0048] The further embodiment of the data collection module 70 in the utility model is: the data collection module 70 comprises a support 71 arranged on the workbench, a camera 72 is arranged on the support 71, and a lens of the camera 72 extends to the direction of the clamp 30.

[0049] The further embodiment of the operation module 80 in the utility model is: the operation module 80 comprises a display screen 81 arranged on the outer wall of the experiment box 1, a plurality of operation buttons 82 are sequentially arranged below the display screen 81, and a control circuit, a memory and a timer are integrated on the display screen 81.

[0050] In use: Before the experiment, the experimenter can first clamp the experimental sample on the clamp 30, and then move the first telescopic frame 20 up and down by operating the button 82, and the first infrared sensor 51 at the top of the scale plate 911 will always emit a laser line as a reference line. When the side of the experimental sample that needs to be burned is moved to the laser line emitted by the first infrared sensor 51, it can serve as the first reference height of the experiment. Then light the flame needle 7, and the experimenter moves the flame tip on the flame sprayed by the flame needle 7 to the bottom of the side of the experimental sample that needs to be burned by operating the button 82. When the flame tip contacts the side of the experimental sample that needs to be burned, the position of the laser line emitted by the second infrared sensor 201 on the scale plate 911 is the second reference height of the experiment. The height region between the first reference height and the second reference height is the experimental height region. The experimenter can create multiple experimental height regions by adjusting the height of the second reference height upwards. The closer the experimental height region is to the burning surface of the experimental sample, the higher the temperature will be. By setting the burning time of each experimental height region on the burning surface of the experimental sample, the experimenter can observe the change process and data of the experimental sample being burned at different heights. The camera 72 will record the process to facilitate the experimenter's subsequent research and analysis.

[0051] The basic principles and main features of the utility model and the advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model can have various changes and improvements. These changes and improvements all fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A test positioning system for needle flame test, comprising an experimental box (1), an experimental cavity (2) is arranged on one side of the experimental box (1), a workbench (3) is arranged in the experimental cavity (2), a guide groove (4) is arranged on the workbench (3), and a moving plate (5) is arranged on the guide groove (4), characterized in that: a first telescopic frame (20) is arranged on one side of the workbench (3) in the moving direction of the moving plate (5), a clamp (30) for clamping an experimental sample is arranged on one side of the first telescopic frame (20) close to the moving plate (5); a second telescopic frame (60) is arranged on the moving plate (5), and a mounting head (6) is arranged on the top of the second telescopic frame (60); a needle flame test piece (40) is composed of a flame needle (7), an igniter (8) and a temperature measuring instrument (9) arranged on the mounting head (6), and the flame needle (7) can directively burn the experimental sample; a first positioning mechanism (50) for positioning the position of the burning surface of the experimental sample required to be directedly burned is arranged on the top of a scale plate (911) arranged on the moving plate (5); a second positioning mechanism (200) for positioning the current position height of the flame tip of the flame needle (7) after ignition to initially contact the burning surface is arranged on one side of the mounting head (6) close to the scale plate (911); a data collection module (70) for collecting the data change of the experimental sample when burned by the flame needle (7) is arranged in the experimental cavity (2); and an operation module (80) for assisting the experimental personnel to conduct the needle flame burning test of the experimental sample is arranged on the experimental box (1). The first telescopic frame (20) comprises a first vertical rod (21) fixed on the workbench (3), a first sleeve (22) sleeved on the first vertical rod (21), a connector (23) arranged on the top of the first sleeve (22), a horizontal rod (24) transversely connected to the connector (23), the clamp (30) arranged on one end of the horizontal rod (24) close to the moving plate (5), a first threaded rod (25) rotatably arranged on the workbench (3), a first threaded cylinder (26) fixed on the first sleeve (22), the first threaded cylinder (26) being in threaded connection with the first threaded rod (25), a first bevel gear (27) fixed on the first threaded rod (25), a first motor (28) fixed on the workbench (3), and a second bevel gear (29) fixed on the output end of the first motor (28) and meshable with the first bevel gear (27). ​ ​ ​ ​ ​ ​ 2. A test positioning system for a needle flame test according to claim 1, characterized in that ​ 3. A test positioning system for a needle flame test according to claim 2, characterized in that The clamp (30) comprises a reverse U-shaped clamp block (31) fixed on the cross rod (24) near the end of the moving plate (5), anti-skid blocks (32) are arranged at both ends of the reverse U-shaped clamp block (31), first threaded holes (33) and through holes (34) are arranged at both ends of the reverse U-shaped clamp block (31), bolts (35) are arranged through the through holes (34), and one end of the bolt (35) is connected with the first threaded hole (33).

4. A test positioning system for a needle flame test according to claim 1, characterized in that The second telescopic frame (60) comprises a second vertical rod (61) fixed on the moving plate (5), a second sleeve (62) sleeved on the second vertical rod (61), a second threaded rod (63) rotatably arranged on the moving plate (5), a second threaded cylinder (64) fixed on the second sleeve (62), the second threaded cylinder (64) being threadedly connected with the second threaded rod (63), a third bevel gear (65) fixed on the second threaded rod (63), a second motor (66) fixed on the moving plate (5), and a fourth bevel gear (67) fixed on the output end of the second motor (66) and meshable with the third bevel gear (65).

5. A test positioning system for a needle flame test according to claim 4, characterized in that The mounting head (6) is arranged at the top of the second sleeve (62), the mounting head (6) is hollow, the flame needle (7) is arranged in the mounting head (6), the flame needle (7) is inclined upward and extends out of the mounting head (6), an air inlet pipe (68) is arranged at the bottom of the flame needle (7), the air inlet end of the air inlet pipe (68) is connected with an external gas cylinder, the igniter (8) is arranged in the mounting head (6), the electric fire end of the igniter (8) extends to the flame end of the flame needle (7), and the temperature measuring instrument (9) is arranged on the side wall of the mounting head (6), and the temperature sensing end of the temperature measuring instrument (9) extends to the flame end of the flame needle (7).

6. A test positioning system for a needle flame test according to claim 1, characterized in that Second threaded holes (91) are arranged on the moving plate (5) and extend through both ends of the moving plate (5), fixed blocks (92) are arranged on both sides of the guide groove (4) of the workbench (3), a third threaded rod (93) is rotatably arranged between the fixed blocks (92), the third threaded rod (93) extends through the second threaded holes (91) and is threadedly connected with the second threaded holes (91), and one end of the third threaded rod (93) is connected with a third motor (94).

7. A test positioning system for a needle flame test according to claim 1, characterized in that The first positioning mechanism (50) comprises a first infrared sensor (51) arranged at the top of the scale plate (911), and a laser part of the first infrared sensor (51) extends to the clamp direction.

8. A test positioning system for a needle flame test according to claim 1, characterized in that The second positioning mechanism (200) comprises a second infrared sensor (201) arranged in the mounting head (6), and a laser part of the second infrared sensor (201) extends out of the mounting head (6) and extends to the scale plate (911) direction.

9. A test positioning system for a needle flame test according to claim 1, characterized in that The data collection module (70) comprises a support (71) arranged on the workbench, and a camera (72) is arranged on the support (71), and a lens of the camera (72) extends to the clamp (30) direction.

10. A test positioning system for a needle flame test according to claim 9, characterized in that The operation module (80) comprises a display screen (81) arranged on the outer wall of the experiment box (1), a plurality of operation buttons (82) are sequentially arranged below the display screen (81), and the display screen (81) is integrated with a control circuit, a memory and a timer.

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