Electronic detonator spot welding defect detection equipment

Abstract

The present invention belongs to the technical field of electronic detonator production, and specifically refers to an electronic detonator spot welding defect detection device, including a test box, a heat sink, a sliding frame, a modified temperature conduction mechanism and an enhanced temperature difference mechanism, wherein the heat sink is arranged on the top side wall of the test box, the sliding frame is slidably arranged on the side wall of the test box below the heat sink, the modified temperature conduction mechanism is arranged on the side wall of the test box, the enhanced temperature difference mechanism is arranged on the heat sink, and the modified temperature conduction mechanism includes a temperature source mechanism, a conduction mechanism, a lifting mechanism and a temperature measuring mechanism. The present invention provides an electronic detonator spot welding defect detection device that can detect the state of a welding spot under different low temperature environments and detect the internal structural strength of the welding spot by using an energy storage temperature difference under the same cold source.

Description

Technical Field

[0001] The invention belongs to the technical field of electronic detonator production, and in particular relates to electronic detonator spot welding defect detection equipment. Background Art

[0002] Electronic detonators are electric detonators that use electronic control modules to control the detonation process. Due to their high reliability, high safety and high precision, they have been widely used in blasting projects in recent years. When producing electronic detonator control modules, two leads need to be welded to the two pins of the electronic control module. After welding, the solder joints at the connection between the leads and the pins need to be tested to ensure the corresponding effect of the electronic control module when leaving the factory.

[0003] The existing electronic detonator spot welding defect detection equipment has the following problems:

[0004] The existing electronic detonator spot welding defect detection equipment can only detect the surface defects of the welding points, and does not have the ability to detect the status of the welding points in different low-temperature environments. In addition, the traditional electronic detonator spot welding defect detection equipment does not have the ability to detect the internal structural strength of the welding points, resulting in the quality of the electronic control module after welding cannot be guaranteed. Therefore, it cannot meet the existing use requirements of electronic detonator spot welding defect detection equipment. Summary of the invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present solution provides an electronic detonator spot welding defect detection device which can not only detect the status of the welding point under different low temperature environments under the same cold source, but also detect the internal structural strength of the welding point by utilizing the energy storage temperature difference.

[0006] The technical scheme adopted in this scheme is as follows: An electronic detonator spot welding defect detection device proposed in this scheme includes a test box, a heat sink, a sliding frame, a distance-changing temperature conduction mechanism and an enhanced temperature difference mechanism. The heat sink is arranged on the top side wall of the test box, and the sliding frame is slidably arranged on the side wall of the test box below the heat sink. The distance-changing temperature conduction mechanism is arranged on the side wall of the test box, and the enhanced temperature difference mechanism is arranged on the heat sink. The distance-changing temperature conduction mechanism includes a temperature source mechanism, a conduction mechanism, a lifting mechanism and a temperature measuring mechanism. The temperature source mechanism is arranged at one end of the test box close to the heat sink, and the conduction mechanism is arranged at one end of the temperature source mechanism away from the test box. The lifting mechanism is arranged on the sliding frame, and the temperature measuring mechanism is arranged on the lifting mechanism. The enhanced temperature difference mechanism includes a temperature changing mechanism and a cold difference mechanism. The temperature changing mechanism is arranged on the upper wall of the heat sink, and the enhanced temperature sensor is arranged on the top of the test box.

[0007] As a further preferred embodiment of the present invention, the temperature source mechanism includes a thermoelectric cooling sheet, a radiator and a cooling copper plate. Multiple groups of the thermoelectric cooling sheets are arranged on the inner wall of the heat dissipation frame, the radiator is arranged on the inner wall of one end of the heat dissipation frame away from the thermoelectric cooling sheet, and the cooling copper plate passes through the test box and is arranged at the cooling end of the thermoelectric cooling sheet; the conduction mechanism includes a radiation tube, a heat-insulating electric valve, a heat-insulating cylinder, a heat-dissipating port and a heat-conducting copper column. The radiation tube is arranged on the bottom wall of the cooling copper plate, multiple groups of the heat-insulating cylinder pass through the sliding frame and are arranged on the bottom wall of the test box, multiple groups of the heat-dissipating port are arranged on the side wall of the heat-insulating cylinder, the heat-insulating electric valve is connected between the radiation tube and the heat-insulating cylinder, and the heat-conducting copper column is arranged between the bottom wall of the heat-insulating cylinder and the heat-insulating electric valve; the lifting mechanism includes a heat-conducting copper ring, a heat-conducting copper rod, Strip grooves, rubber sealing pads, thermal conductive copper plates and driving electromagnets, the thermal conductive copper rings are arranged on the inner wall of the sliding frame outside the thermal insulation cylinder, the thermal conductive copper rods penetrate the sliding frame and are arranged between the thermal conductive copper rings, the strip grooves are arranged in groups of two and are symmetrically arranged on both sides of the test box, the strip grooves are arranged in a through manner, the rubber sealing pads are arranged on the side walls of the test box outside the strip grooves, the thermal conductive copper plates penetrate the strip grooves and are arranged between the thermal conductive copper rods, and the driving electromagnet is arranged on the bottom wall of the test box; the temperature measuring mechanism includes a test bench, a fixed bench, a gradual temperature sensor and a fixed magnet, the test bench is arranged between the thermal conductive copper plates, the fixed bench is arranged on the upper wall of the test bench, the gradual temperature sensor is arranged on the bottom wall of the test bench, the fixed magnet is arranged on the bottom wall of the test bench, and the fixed magnet is arranged opposite to the driving electromagnet.

[0008] When in use, in the initial state, the sliding rack is located at the bottom side wall of the test box, and the welded electronic detonator control module is fixed on the upper wall of the fixed platform. The thermoelectric cooling sheet cools the cooling copper plate through the cooling end, and the cooling copper plate cools the air inside the radiation tube. The heat-insulating temperature-isolating electric valve is in the on state. After the air temperature inside the radiation tube is reduced, the temperature-conducting copper column is cooled. The thermal radiation energy of the temperature-conducting copper column is hindered by air absorption and scattering when propagating in the air, resulting in energy loss. The temperature of the temperature-conducting copper column gradually increases from top to bottom, and the temperature-conducting copper column cools the temperature-conducting copper rod through the temperature-conducting copper ring. The temperature-conducting copper rod cools the inside of the test box through the temperature-conducting copper plate. At this time, the temperature of the electronic detonator control module at the bottom of the test box is relatively high, and the driving electromagnet is energized to generate magnetism. The driving electromagnet is arranged with the same pole as the fixed magnet. The driving electromagnet is fixed at the bottom of the test box and pushes the fixed magnet through repulsion. The fixed magnet drives the test bench to rise. The test bench drives the electronic detonator control module to rise through the fixed bench. The thermal conductive copper plate drives the sliding frame to slide and rise along the strip groove. The rubber sealing pad at the position of the thermal conductive copper plate is closed. The rubber sealing pad at the position of the strip groove where the thermal conductive copper plate rises is deformed and opened. After the thermal conductive copper plate moves away, the rubber sealing pad closes again, thereby avoiding energy loss inside the test box. In the process of the test bench rising, the sliding frame drives the thermal conductive copper ring and the thermal conductive copper rod to shorten the distance with the radiation tube, and the temperature of the thermal conductive copper plate gradually decreases, thereby enabling the solder joints of the electronic detonator control module to be tested at different low temperatures.

[0009] Preferably, the temperature changing mechanism includes a driving motor, a driving gear, an arc-shaped heat dissipation pipe and a driven gear. Multiple groups of the driving motors are arranged on the upper wall of the heat dissipation frame, the driving gear is arranged at the power end of the driving motor, the arc-shaped heat dissipation pipe is rotatably arranged at the heat dissipation end of the radiator, the driven gear is arranged on the outside of the arc-shaped heat dissipation pipe, and the driven gear is meshed with the driving gear; the cold difference mechanism includes a strengthening cavity, a strengthening temperature sensor, a strengthening groove, a thermal insulation pull plate and a thermal insulation partition. The thermal insulation partition is arranged on the inner wall of the top of the test box, the strengthening cavity is arranged between the thermal insulation partition and the top wall of the test box, the strengthening temperature sensor is arranged on the side wall of one end of the test box close to the heat dissipation frame, the detection end of the strengthening temperature sensor is arranged through the strengthening cavity, the strengthening groove is arranged on the bottom wall of the thermal insulation partition, the strengthening groove is arranged through, and the thermal insulation pull plate passes through the test box and is arranged inside the strengthening groove.

[0010] When in use, the state of the solder joint of the electronic detonator control module under a large temperature difference is tested. In the initial state, the insulation pull plate is set inside the reinforcement groove, the reinforcement cavity is a sealed cavity, and the reinforcement temperature sensor monitors the temperature inside the reinforcement cavity through the detection end. The temperature inside the reinforcement cavity is in a relatively low state. At this time, the heat-insulating insulation electric valve is closed, the radiation tube is blocked and cut off, and the radiation tube stops conducting temperature to the inside of the heat-conducting copper column. The driving motor drives the active gear to rotate through the power end, and the active gear drives the air outlet of the arc-shaped heat dissipating pipe to be placed downward through the driven gear. The driving electromagnet pushes the fixed magnet through the repulsive force, and the fixed magnet drives the sliding frame to move to the position where the heat dissipation port is not set on the top of the insulation tube through the test bench. The distance between the heat-conducting copper ring and the heat-conducting copper rod and the air outlet of the arc-shaped heat dissipating pipe is shortened, and the hot air emitted by the radiator to the heating end of the thermoelectric refrigeration plate is sprayed to the heat-conducting copper ring and the heat-conducting copper rod through the arc-shaped heat dissipating pipe. The heat-conducting copper ring and the heat-conducting copper rod are connected to the inside of the test box through the heat-conducting copper plate. The air is heated, the ambient temperature of the electronic detonator control module increases, and the gradual temperature sensor monitors the temperature inside the test box. When the temperature inside the test box reaches the user's requirements, the insulation pull plate is pulled, and the insulation pull plate slides along the inner wall of the test box away from the reinforcement groove. The reinforcement groove opens, the current passed into the driving electromagnet increases, and the magnetic field strength between the driving electromagnet and the fixed magnet is enhanced. The fixed magnet drives the fixed table into the reinforcement groove, and the electronic detonator control module is placed in the reinforcement cavity. The upper wall of the test table fits the bottom wall of the thermal insulation partition, and the strength of the electronic detonator control module solder joint under a large temperature difference is tested. Under a large temperature difference, the electronic detonator control module solder joint is affected by thermal expansion and contraction to generate thermal stress. When there are pores, slag inclusions, and unfused defects in the solder joint, which reduce the strength of the solder joint, the electronic detonator control module solder joint will crack under the action of thermal stress, thereby completing the test operation of the electronic detonator control module solder joint strength.

[0011] Specifically, the controller is arranged on a side wall of the test box.

[0012] Wherein, the controller is electrically connected to the thermoelectric cooling sheet, the radiator, the heat-insulating temperature-isolating electric valve, the gradual temperature sensor, the driving motor, the enhanced temperature sensor and the driving electromagnet respectively.

[0013] Preferably, the model of the controller is SYC89C52RC-401.

[0014] Furthermore, the model of the gradual temperature sensor and the enhanced temperature sensor is LM-PT100.

[0015] The beneficial effects achieved by adopting the above structure are as follows:

[0016] Compared with the prior art, the present invention adopts a combination of an asymptotic cooling structure and an energy storage temperature difference structure. By setting a distance-changing temperature conduction mechanism and an enhanced temperature difference mechanism, under the action of a temperature source mechanism, a conduction mechanism, a lifting mechanism, a temperature measuring mechanism, a temperature change mechanism and a cold difference mechanism, on the one hand, the state of the solder joints of the electronic detonator control module at different low temperatures can be tested, so that the electronic detonator control module after welding can adapt to different working environments. On the other hand, by heating the environment in which the electronic detonator control module is located after welding, moisture enters the energy storage enhanced cavity, and defects inside the solder joints can be detected under a large temperature difference, thereby ensuring the use quality of the electronic detonator control module after welding. The distance between the heat-conducting copper ring and the heat-conducting copper rod and the air outlet of the arc-shaped heat dissipation pipe is shortened, and the radiator is more effective in heat dissipation. The hot air emitted from the heating end of the electric refrigeration plate is sprayed to the temperature conducting copper ring and the temperature conducting copper rod through the arc heat dissipation pipe. The temperature conducting copper ring and the temperature conducting copper rod heat the air inside the test box through the temperature conducting copper plate. The ambient temperature of the electronic detonator control module increases, and the gradual temperature sensor monitors the temperature inside the test box. When the temperature inside the test box reaches the user's requirement, the insulation pull plate is pulled, and the insulation pull plate slides along the inner wall of the test box away from the reinforcement groove. The reinforcement groove opens, and the current passing into the driving electromagnet increases. The magnetic field strength between the driving electromagnet and the fixed magnet is enhanced, and the fixed magnet drives the fixed table to enter the reinforcement groove. The electronic detonator control module is placed inside the reinforcement cavity, and the wall of the test table fits the bottom wall of the thermal insulation partition to test the strength of the solder joints of the electronic detonator control module under a large temperature difference. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of this scheme;

[0018] Figure 2 This is a bottom-up stereogram of the scheme;

[0019] Figure 3 This is a schematic diagram of the internal structure of this scheme;

[0020] Figure 4 This is a schematic diagram of the structure of the test box of this scheme;

[0021] Figure 5 for Figure 3 Side view of

[0022] Figure 6 This is the main view of this scheme;

[0023] Figure 7 This is a side view of the scheme;

[0024] Figure 8 This is a top view of the scheme;

[0025] Fig. 9 for Figure 8AA section view of the part;

[0026] Fig.10 for Figure 8 A cross-sectional view of the BB portion;

[0027] Fig.11 for Figure 5 Part I shows a magnified structural view.

[0028] Among them, 1. test box, 2. heat dissipation rack, 3. sliding rack, 4. variable-distance temperature conduction mechanism, 5. temperature source mechanism, 6. thermoelectric cooling sheet, 7. radiator, 8. cooling copper plate, 9. conduction mechanism, 10. radiation tube, 11. heat insulation type temperature insulation electric valve, 12. insulation cylinder, 13. heat dissipation port, 14. temperature conduction copper column, 15. lifting mechanism, 16. temperature conduction copper ring, 17. temperature conduction copper rod, 18. strip groove, 19. rubber sealing pad, 20. temperature conduction copper plate, 2 1. Temperature measuring mechanism, 22. Test bench, 23. Fixed bench, 24. Gradual temperature sensor, 25. Enhanced temperature difference mechanism, 26. Temperature changing mechanism, 27. Driving motor, 28. Driving gear, 29. Arc heat dissipation pipe, 30. Driven gear, 31. Cold difference mechanism, 32. Enhanced cavity, 33. Enhanced temperature sensor, 34. Enhanced groove, 35. Insulation pull plate, 36. Insulation partition, 37. Controller, 38. Fixed magnet, 39. Driving electromagnet.

[0029] The accompanying drawings are used to provide further understanding of the present scheme and constitute a part of the specification. Together with the embodiments of the present scheme, they are used to explain the present scheme and do not constitute a limitation on the present scheme. DETAILED DESCRIPTION

[0030] The technical scheme in the embodiments of the present scheme will be clearly and completely described below in conjunction with the drawings in the embodiments of the present scheme. Obviously, the described embodiments are only part of the embodiments of the present scheme, not all of the embodiments; based on the embodiments in the present scheme, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present scheme.

[0031] In the description of this scheme, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this scheme and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on this scheme.

[0032] like Figure 1-Figure 11As shown, the electronic detonator spot welding defect detection equipment proposed in this scheme includes a test box 1, a heat sink 2, a sliding frame 3, a distance-changing temperature conduction mechanism 4 and an enhanced temperature difference mechanism 25, wherein the heat sink 2 is arranged on the top side wall of the test box 1, the sliding frame 3 is slidably arranged on the side wall of the test box 1 below the heat sink 2, the distance-changing temperature conduction mechanism 4 is arranged on the side wall of the test box 1, and the enhanced temperature difference mechanism 25 is arranged on the heat sink 2, the distance-changing temperature conduction mechanism 4 includes a temperature source mechanism 5, a conduction mechanism 9, a lifting mechanism 15 and a temperature measuring mechanism 21, the temperature source mechanism 5 is arranged at one end of the test box 1 close to the heat sink 2, the conduction mechanism 9 is arranged at one end of the temperature source mechanism 5 away from the test box 1, the lifting mechanism 15 is arranged on the sliding frame 3, the temperature measuring mechanism 21 is arranged on the lifting mechanism 15, the enhanced temperature difference mechanism 25 includes a temperature changing mechanism 26 and a cold difference mechanism 31, the temperature changing mechanism 26 is arranged on the upper wall of the heat sink 2, and the enhanced temperature sensor 33 is arranged on the top of the test box 1.

[0033] The temperature source mechanism 5 includes a thermoelectric cooling sheet 6, a radiator 7 and a cooling copper plate 8. Multiple groups of the thermoelectric cooling sheets 6 are arranged on the inner wall of the heat dissipation frame 2. The radiator 7 is arranged on the inner wall of the heat dissipation frame 2 away from the thermoelectric cooling sheet 6. The cooling copper plate 8 penetrates the test box 1 and is arranged at the cooling end of the thermoelectric cooling sheet 6. The conduction mechanism 9 includes a radiation tube 10, an insulation type insulation electric valve 11, a heat preservation tube 12, a heat dissipation port 13 and a heat conduction copper column 14. The radiation tube 10 is arranged The bottom wall of the cooling copper plate 8, multiple groups of the insulation tubes 12 penetrate the sliding frame 3 and are arranged on the bottom wall of the test box 1, multiple groups of the heat dissipation ports 13 are arranged on the side wall of the insulation tube 12, the heat insulation type insulation electric valve 11 is connected and arranged between the radiation tube 10 and the insulation tube 12, and the heat conduction copper column 14 is arranged between the bottom wall of the insulation tube 12 and the heat insulation type insulation electric valve 11; the lifting mechanism 15 includes a heat conduction copper ring 16, a heat conduction copper rod 17, a strip groove 18, a rubber sealing pad 19, The thermal conductive copper plate 20 and the driving electromagnet 39, the thermal conductive copper ring 16 is arranged on the inner wall of the sliding frame 3 outside the thermal insulation cylinder 12, the thermal conductive copper rod 17 penetrates the sliding frame 3 and is arranged between the thermal conductive copper rings 16, the strip grooves 18 are symmetrically arranged on both sides of the test box 1 in pairs, the strip grooves 18 are through-arranged, the rubber sealing pad 19 is arranged on the side wall of the test box 1 outside the strip grooves 18, the thermal conductive copper plate 20 penetrates the strip grooves 18 and is arranged between the thermal conductive copper rods 17 , the driving electromagnet 39 is arranged on the bottom wall of the test box 1; the temperature measuring mechanism 21 includes a test table 22, a fixed table 23, a gradual temperature sensor 24 and a fixed magnet 38, the test table 22 is arranged between the temperature-conducting copper plates 20, the fixed table 23 is arranged on the upper wall of the test table 22, the gradual temperature sensor 24 is arranged on the bottom wall of the test table 22, the fixed magnet 38 is arranged on the bottom wall of the test table 22, and the fixed magnet 38 is arranged opposite to the driving electromagnet 39.

[0034] The temperature changing mechanism 26 includes a driving motor 27, a driving gear 28, an arc-shaped heat dissipation pipe 29 and a driven gear 30. A plurality of driving motors 27 are arranged on the upper wall of the heat dissipation frame 2. The driving gear 28 is arranged at the power end of the driving motor 27. The arc-shaped heat dissipation pipe 29 is rotatably arranged at the heat dissipation end of the radiator 7. The driven gear 30 is arranged outside the arc-shaped heat dissipation pipe 29. The driven gear 30 is meshed with the driving gear 28. The cold difference mechanism 31 includes a strengthening chamber 32, a strengthening temperature sensor 33, and a strengthening groove 34, a thermal insulation plate 35 and a thermal insulation partition 36, wherein the thermal insulation partition 36 is arranged on the inner wall of the top of the test box 1, the strengthened cavity 32 is arranged between the thermal insulation partition 36 and the top wall of the test box 1, the strengthened temperature sensor 33 is arranged on the side wall of one end of the test box 1 close to the heat dissipation frame 2, the detection end of the strengthened temperature sensor 33 is arranged through the inside of the strengthened cavity 32, the strengthened groove 34 is arranged on the bottom wall of the thermal insulation partition 36, the strengthened groove 34 is a through setting, and the thermal insulation plate 35 passes through the test box 1 and is arranged inside the strengthened groove 34.

[0035] The controller 37 is disposed on a side wall of the test box 1 .

[0036] The controller 37 is electrically connected to the thermoelectric cooling sheet 6 , the radiator 7 , the heat-insulating temperature-isolating electric valve 11 , the gradual temperature sensor 24 , the driving motor 27 , the enhanced temperature sensor 33 and the driving electromagnet 39 , respectively.

[0037] The model of the controller 37 is SYC89C52RC-401.

[0038] The model of the gradual temperature sensor 24 and the enhanced temperature sensor 33 is LM-PT100.

[0039] When in use, in the initial state, the sliding frame 3 is located at the bottom side wall of the test box 1, the insulation pull plate 35 is located inside the strengthening groove 34, the strengthening cavity 32 is a sealed cavity, the welded electronic detonator control module is fixed on the upper wall of the fixed platform 23, the controller 37 controls the thermoelectric cooling plate 6 to start, the thermoelectric cooling plate 6 cools the cooling copper plate 8 through the cooling end, the cooling copper plate 8 cools the air inside the radiation tube 10, the insulation type insulation electric valve 11 is in the conducting state, the air temperature inside the radiation tube 10 is reduced, and the temperature-conducting copper column 14 is cooled. The thermal radiation energy of the temperature-conducting copper column 14 is hindered by air absorption and scattering when propagating in the air, resulting in energy loss. The temperature of the temperature-conducting copper column 14 gradually increases from top to bottom, the temperature-conducting copper column 14 cools the temperature-conducting copper rod 17 through the temperature-conducting copper ring 16, and the temperature-conducting copper rod 17 cools the inside of the test box 1 through the temperature-conducting copper plate 20. At this time, the temperature of the electronic detonator control module at the bottom of the test box 1 is relatively high;

[0040] The controller 37 controls the driving electromagnet 39 to start, and the driving electromagnet 39 is energized to generate magnetism. The driving electromagnet 39 is arranged with the same pole as the fixed magnet 38. The driving electromagnet 39 is fixed at the bottom of the test box 1 and pushes the fixed magnet 38 through repulsion. The fixed magnet 38 drives the test table 22 to rise, and the test table 22 drives the electronic detonator control module to rise through the fixed table 23. The thermal conductive copper plate 20 drives the sliding frame 3 to slide and rise along the strip groove 18. The rubber sealing pad 19 at the position where the thermal conductive copper plate 20 is located is a closed setting. The rubber sealing pad 19 at the position of the strip groove 18 where the thermal conductive copper plate 20 rises is deformed and opened. After the thermal conductive copper plate 20 moves away, the rubber sealing pad 19 is closed again, thereby avoiding the loss of energy inside the test box 1. In the process of the test table 22 rising, the sliding frame 3 drives the thermal conductive copper ring 16 and the thermal conductive copper rod 17 to shorten the distance between the radiation tube 10, and the temperature of the thermal conductive copper plate 20 gradually decreases, thereby the solder joints of the electronic detonator control module can be tested at different low temperatures.

[0041] The state of the electronic detonator control module solder joint under a large temperature difference is tested, the controller 37 controls the enhanced temperature sensor 33 to start, the enhanced temperature sensor 33 monitors the temperature inside the enhanced cavity 32 through the detection end, and the temperature inside the enhanced cavity 32 is in a relatively low state. At this time, the controller 37 controls the heat-insulating insulation electric valve 11 to close, the radiation tube 10 is blocked and cut off, and the radiation tube 10 stops conducting temperature to the inside of the heat-conducting copper column 14. The controller 37 controls the drive motor 27 to start, and the drive motor 27 drives the driving gear 28 to rotate through the power end, and the driving gear 28 drives the arc through the driven gear 30. The air outlet of the heat dissipation pipe 29 is placed downward, and the driving electromagnet 39 pushes the fixed magnet 38 through the repulsive force. The fixed magnet 38 drives the sliding frame 3 to move to the position where the heat dissipation port 13 is not set on the top of the heat preservation tube 12 through the test bench 22. The distance between the heat-conducting copper ring 16 and the heat-conducting copper rod 17 and the air outlet of the arc-shaped heat dissipation pipe 29 is shortened. The heat dissipated from the heating end of the thermoelectric cooling plate 6 by the radiator 7 is sprayed to the heat-conducting copper ring 16 and the heat-conducting copper rod 17 through the arc-shaped heat dissipation pipe 29. The heat-conducting copper ring 16 and the heat-conducting copper rod 17 heat the air inside the test box 1 through the heat-conducting copper plate 20, and the ambient temperature of the electronic detonator control module is increased.

[0042] The controller 37 controls the gradual temperature sensor 24 to start, and the gradual temperature sensor 24 monitors the temperature inside the test box 1. When the temperature inside the test box 1 reaches the user's requirement, the insulation pull plate 35 is pulled, and the insulation pull plate 35 slides along the inner wall of the test box 1 away from the strengthening groove 34, and the strengthening groove 34 is opened. The controller 37 controls the current passing into the driving electromagnet 39 to increase, and the magnetic field strength between the driving electromagnet 39 and the fixed magnet 38 is enhanced. The fixed magnet 38 drives the fixed platform 23 to enter the strengthening groove 34, and the electronic detonator control module The block is placed inside the reinforcement chamber 32, and the upper wall of the test bench 22 is fitted with the bottom wall of the thermal insulation partition 36. The strength of the solder joints of the electronic detonator control module under a large temperature difference is tested. Under a large temperature difference, the solder joints of the electronic detonator control module will be affected by thermal expansion and contraction to produce thermal stress. When there are pores, slag inclusions, and unfused defects inside the solder joints, which cause the strength of the solder joints to decrease, the solder joints of the electronic detonator control module will crack under the action of thermal stress, thereby completing the test of the strength of the solder joints of the electronic detonator control module. Repeat the above operation when using it next time.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0044] The above is a description of the present solution and its implementation methods, which is not restrictive. The drawings show only one implementation method of the present solution, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creative design without departing from the creative purpose of the present solution, they should all fall within the protection scope of the present solution.

Claims

1. An electronic detonator spot welding defect detection device, comprising a test box (1), a heat sink (2) and a sliding frame (3), characterized in that: The invention also comprises a modified temperature conduction mechanism (4) and an enhanced temperature difference mechanism (25), wherein the heat dissipation frame (2) is arranged on the top side wall of the test box (1), the sliding frame (3) is slidably arranged on the side wall of the test box (1) below the heat dissipation frame (2), the modified temperature conduction mechanism (4) is arranged on the side wall of the test box (1), the enhanced temperature difference mechanism (25) is arranged on the heat dissipation frame (2), the modified temperature conduction mechanism (4) comprises a temperature source mechanism (5), a conduction mechanism (9), a lifting mechanism (15) and a temperature measuring mechanism (21), and the The temperature source mechanism (5) is arranged at one end of the test box (1) close to the heat dissipation rack (2), the conduction mechanism (9) is arranged at one end of the temperature source mechanism (5) away from the test box (1), the lifting mechanism (15) is arranged on the sliding rack (3), the temperature measuring mechanism (21) is arranged on the lifting mechanism (15), the enhanced temperature difference mechanism (25) comprises a temperature changing mechanism (26) and a cold difference mechanism (31), the temperature changing mechanism (26) is arranged on the upper wall of the heat dissipation rack (2), and the cold difference mechanism (31) is arranged on the top of the test box (1); The temperature source mechanism (5) comprises a thermoelectric cooling sheet (6), a heat sink (7) and a cooling copper plate (8); a plurality of groups of the thermoelectric cooling sheets (6) are arranged on the inner wall of the heat sink (2); the heat sink (7) is arranged on the inner wall of one end of the heat sink (2) away from the thermoelectric cooling sheet (6); and the cooling copper plate (8) penetrates the test box (1) and is arranged at the cooling end of the thermoelectric cooling sheet (6); The conduction mechanism (9) comprises a radiation tube (10), a heat-insulating and temperature-isolating electric valve (11), a heat-insulating tube (12), a heat-dissipating port (13) and a heat-conducting copper column (14); the radiation tube (10) is arranged on the bottom wall of the cooling copper plate (8); a plurality of groups of the heat-insulating tubes (12) penetrate the sliding frame (3) and are arranged on the bottom wall of the test box (1); a plurality of groups of the heat-dissipating ports (13) are arranged on the side wall of the heat-insulating tube (12); the heat-insulating and temperature-isolating electric valve (11) is arranged between the radiation tube (10) and the heat-insulating tube (12); and the heat-conducting copper column (14) is arranged between the bottom wall of the heat-insulating tube (12) and the heat-insulating and temperature-isolating electric valve (11).

2. The electronic detonator spot welding defect detection device according to claim 1 is characterized in that: The lifting mechanism (15) comprises a thermal conductive copper ring (16), a thermal conductive copper rod (17), a strip groove (18), a rubber sealing pad (19), a thermal conductive copper plate (20) and a driving electromagnet (39); the thermal conductive copper ring (16) is arranged on the inner wall of the sliding frame (3) outside the thermal insulation cylinder (12); the thermal conductive copper rod (17) penetrates the sliding frame (3) and is arranged between the thermal conductive copper rings (16); the strip grooves (18) are symmetrically arranged on both sides of the test box (1) in groups of two; the strip grooves (18) are through-arranged; the rubber sealing pad (19) is arranged on the side wall of the test box (1) outside the strip grooves (18); the thermal conductive copper plate (20) penetrates the strip grooves (18) and is arranged between the thermal conductive copper rods (17); and the driving electromagnet (39) is arranged on the bottom wall of the test box (1).

3. The electronic detonator spot welding defect detection device according to claim 2 is characterized in that: The temperature measuring mechanism (21) comprises a test bench (22), a fixed bench (23), a gradual temperature sensor (24) and a fixed magnet (38); the test bench (22) is arranged between the thermal conductive copper plates (20); the fixed bench (23) is arranged on the upper wall of the test bench (22); the gradual temperature sensor (24) is arranged on the bottom wall of the test bench (22); the fixed magnet (38) is arranged on the bottom wall of the test bench (22); and the fixed magnet (38) is arranged opposite to the driving electromagnet (39).

4. The electronic detonator spot welding defect detection device according to claim 3 is characterized in that: The temperature changing mechanism (26) comprises a driving motor (27), a driving gear (28), an arc-shaped heat dissipation pipe (29) and a driven gear (30). A plurality of groups of the driving motors (27) are arranged on the upper wall of the heat dissipation frame (2). The driving gear (28) is arranged at the power end of the driving motor (27). The arc-shaped heat dissipation pipe (29) is rotatably arranged at the heat dissipation end of the radiator (7). The driven gear (30) is arranged outside the arc-shaped heat dissipation pipe (29). The driven gear (30) is meshed with the driving gear (28).

5. The electronic detonator spot welding defect detection device according to claim 4, characterized in that: The cold difference mechanism (31) comprises a reinforced cavity (32), a reinforced temperature sensor (33), a reinforced groove (34), a thermal insulation pull plate (35) and a thermal insulation baffle (36); the thermal insulation baffle (36) is arranged on the top inner wall of the test box (1); the reinforced cavity (32) is arranged between the thermal insulation baffle (36) and the top wall of the test box (1); the reinforced temperature sensor (33) is arranged on a side wall of the test box (1) close to the heat dissipation frame (2); a detection end of the reinforced temperature sensor (33) is arranged through the interior of the reinforced cavity (32); the reinforced groove (34) is arranged on the bottom wall of the thermal insulation baffle (36); the reinforced groove (34) is arranged through; and the thermal insulation pull plate (35) passes through the test box (1) and is arranged inside the reinforced groove (34).

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