An electronic detonator with an external control module, its processing method and tools

Abstract

The present invention belongs to the field of civil explosive production technology and special devices, and particularly relates to a new type of electronic detonator with an external control module, its processing method and tools. The new type of electronic detonator is composed of a control module, a cylindrical module sleeve, and a basic shell. By improving the structure, the overall structural stability of the electronic detonator is enhanced, the anti-vibration ability and anti-impact ability are improved, and the misfire rate of the electronic detonator in on-site applications is reduced; and the existing processing method is improved to realize automated production, and a processing fixture for manufacturing the structure of the new type of electronic detonator described in the present invention is provided.

Description

Technical Field

[0001] The present invention belongs to the field of civil explosive production technology and special devices, and particularly relates to an electronic detonator with an external control module, its processing method and tools. Background Art

[0002] An electronic detonator successively includes a module, a module sleeve, a base shell, leg wires, an ignition element and a primary explosive. Among them, a chip control circuit board with a delay is arranged on the module. During the detonation process of the electronic detonator, the control host needs a detonation instruction, and the capacitor on the module discharges to ignite the ignition element to complete the subsequent detonation operation. Due to the complex and changeable use environment of electronic detonators, there are many requirements for the electrical performance and structural stability of detonators. Since the base shell of the electronic detonator is a standard part and its size specifications cannot be arbitrarily changed, when the size specifications of some components of the electronic detonator control module are larger than the base shell, they cannot be installed into the base shell, resulting in poor high-pressure resistance, poor vibration resistance and poor impact resistance of the electronic detonator structure. At the blasting site, the previously detonated electronic detonators cause strong vibration at the site, resulting in vibration of the subsequent undetonated electronic detonators, causing deformation of the electronic detonator control module, damaging the circuit board or capacitor, and thus causing the electronic detonator to misfire. Therefore, changing the structure of the electronic detonator and ensuring its stability are the keys to increasing and enhancing the electrical performance of the electronic detonator, determining the applicable scenarios of the electronic detonator, and are a key link in promoting the use of electronic detonators. Summary of the Invention

[0003] The present invention provides an electronic detonator with an external control module, its processing method and tools, which can produce the electronic detonator with an external control module conveniently, safely and efficiently.

[0004] Specifically, it is achieved through the following technical solutions. An electronic detonator with an external control module includes a control module 100, a cylindrical module sleeve 200, and a base shell 300. The control module 100 is located inside the module sleeve 200. The output end of the control module 100 is connected to an ignition element 102 through a wire 101 after plastic encapsulation, and the input end of the control module 100 is connected to leg wires 103. Among them, both the ignition element 102 and the leg wires 103 extend outside the module sleeve 200. An insulating glue 400 is arranged in the gap between the module sleeve 200 and the control module 100. The ignition element 102 is inserted into the base shell 300 and contacts the base explosive 500 in the base shell 300. Part of the module sleeve 200 and the base shell 300 are sleeved with each other, and the sleeved part is an overlapping section 201. The overlapping section 201 is a bayonet structure, thus obtaining the electronic detonator with an external control module.

[0005] Furthermore, in order to improve the mechanical strength of the entire structure of the electronic detonator with an external control module and ensure the reliability of the connection between the module sleeve 200 and the base shell 300, the overlapping section of the wire 101 and the module sleeve 200 is a bayonet structure.

[0006] Furthermore, in order to ensure that rainwater and accumulated water do not flow into the module sleeve 200 along the leg wire 103 and damage the control module during the on-site use of the electronic detonator, there is a necking section 204 on the module sleeve 200 close to the leg wire 103.

[0007] Furthermore, the necking section 204 is filled with a sealing glue 403 whose hardness is lower than that of the insulating glue 400.

[0008] Furthermore, the sealing glue 403 fills beyond the necking section 204 and extends to the leg wire 103 to form a sealing section 404.

[0009] Furthermore, in order to ensure the reliability of the connection between the module sleeve 200 and the base shell 300, reduce the volume of the entire electronic detonator and increase its mechanical strength, the part of the module sleeve 200 that sleeves the control module 100 is a protection section 202, and the diameter of the overlapping section 201 where the module sleeve 200 and the base shell 300 are sleeved together is smaller than the diameter of the protection section 202.

[0010] Furthermore, in order to ensure a smooth transition between the protection section 202 and the overlapping section 201 and increase the mechanical strength of the entire structure, there is a gradually narrowing transition section 203 between the overlapping section 201 and the protection section 202.

[0011] Furthermore, in order for the wire 101 to cooperate with the transition section 203 and the overlapping section 201 of the module sleeve 200 to form a sieve for conveniently pouring the insulating glue 400 into the module sleeve, the wire 101 is plastic-sealed into a funnel shape. There is a stepped shape at the lower end of the funnel to facilitate the insertion of the base shell 300 into the module sleeve 200. The stepped end face not only plays a positioning role for the base shell 300, avoiding accidental accidents caused by the ignition element 102 penetrating too deep into the base shell during the production and processing process. Moreover, it also protects the control module 100, preventing accumulated water from entering through the connection and damaging the control module 100.

[0012] Furthermore, the wire 101 is plastic-sealed twice. The first plastic-sealing is performed using an insulating medium 401 with a hardness greater than that of the insulating glue 400, and the second plastic-sealing is performed using the sealing glue 403.

[0013] Furthermore, the wire 101 forms a stepped shape after the first plastic-sealing.

[0014] Furthermore, after the first plastic-sealing of the wire 101, an isolation hole 402 is provided in the middle of the entire plastic-sealed body, and the isolation hole 402 is between the two wires.

[0015] Further, a protrusion 1011 is provided in the middle of the wire 101.

[0016] Since the hardness of the insulating medium 401 used in the first encapsulation is greater than that of the insulating glue 400, in order to ensure the connection reliability between the module sleeve 200 and the base shell 300, the overlapping section of the wire 101 and the base shell 300 needs to be further buckled, so that the harder insulating medium 401 can protect the wire 101 from being damaged during the encapsulation process due to displacement and when buckling. The insulating medium 401 is encapsulated in a stepped shape, and the vertical surface of the step faces the end connecting the ignition part 102. Because the hardness of the insulating glue 400 is lower than that of the insulating medium 401 when buckling, when the volume of the whole structure shrinks, the insulating glue 400 flows towards the ignition part 102 end, making the ignition part 102 better contact with the base charge 500 and facilitating the detonation of the explosive.

[0017] An isolation hole 402 is provided between the two wires 101. The isolation hole 402 is formed when the wire 101 is first encapsulated, which plays a role in isolating the two wires and avoiding the situation of short circuit caused by winding the two wires together due to improper processing operation. In order to prevent the wire 101 from being detached from the insulating medium 401 during the processing due to the insecure combination of the wire 101 and the insulating medium 401, there is only a small protrusion 1011 in the middle of the wire. The small protrusion 1011 can prevent the wire from moving axially between the wire and the insulating medium 401.

[0018] Further, in order to subject the wire 101 to encapsulation treatment and not deviate from the central axis when connecting to the control module, which is convenient for later processing, one end of the wire 101 connected to the control module 100 deviates from the central axis to form a turning section 1012, and the whole wire 101 presents a Z-shaped structure.

[0019] Further, at one end of the control module 100 connected to the leg wire 103, three connection points are provided, namely connection point A 1031, connection point B 1032, and connection point C 1033. Among them, connection point A 1031 and connection point B 1032 are used to connect to the wire 103, and connection point C 1033 is used to further reinforce the wire 103.

[0020] Further, after the wire 103 coincides and is connected with connection point A1031 and connection point B1032 and then is flipped 180 degrees, connection point C1033 fixes the wire 103, and the insulating glue 400 fills and covers connection point A1031, connection point B1032, and connection point C1033. Since the connection between the leg wire and the control module mostly uses crimping, and since the control module of this electronic detonator structure is externally connected, the length and mass of the entire electronic detonator are increased. Therefore, during processing, transportation, and on-site use, it is easy to have poor contact between the leg wire and the module. In order to ensure the connection reliability between the leg wire and the control module and shorten the length of the entire structure, three connection points are set. After the wire 103 is connected to connection point A1031 and connection point B1032, it is then flipped 180 degrees and further crimped through connection point C1033 to stabilize the leg wire 103.

[0021] Further, since the connections between the leg wire 103 and the wire 101 and the control module 100 are all flexible connections and are extremely easy to be damaged during processing, in order to prevent the entire control module 100 from being screened into the module sleeve 200 and deviating from the center and shaking too much, for the control module 100, its PCB board is provided with a small protrusion 1034 protruding outward at the connection end with the leg wire. The small protrusion 1034 reduces the distance from the inner wall of the module sleeve 200 and reduces the shaking of the control module 100 in the module sleeve 200.

[0022] Further, the insulating glue 400 fills and exceeds the module sleeve 200 and extends onto the leg wire 103 to form a sealing glue section 404 with a gradually narrowing opening to prevent rainwater from entering the module sleeve.

[0023] Further, the processing method of the electronic detonator with an externally connected control module is characterized by including the following steps:

[0024] a. Plasticize the wire 101 so that the plasticized layer of the wire 101 presents a funnel shape, with part of the wire 101 exposed at both ends, and the inner diameter of the overlapping section 201 after plasticization matches that of the module sleeve 200. One end of the exposed wire 101 is connected to the output end of the control module 100, and the other end is connected to the ignition element 102;

[0025] b. Connect the input end of the control module 100 to the leg wire 103;

[0026] c. Place the module sleeve 200 on the module sleeve positioning hole 610 on the operating table 601 of the processing fixture 600;

[0027] d. Place the leg wire 103 connected to the control module 100 obtained in step b in the groove 613 on the upper wire harness baffle 612 of the processing fixture 600 for fixation, and vertically pass the ignition element 102 through the module sleeve 200;

[0028] e. Clamp the wire 102 with the wire fixture 606 under the operating platform 601 and move it vertically downward;

[0029] f. Clamp the leg wire 103 with the leg wire fixture 605 and move it downward, so that the glue injection machine access port 629 at the lower end of the leg wire fixture 605 extends into the module sleeve 200 to fill the insulating glue 400;

[0030] g. Load the base charge 500 into the base shell 300;

[0031] i. Insert the ignition part 102 at the output end of the control module 100 obtained in step f into the base shell 300 to contact the base charge 500 in the base shell, and then respectively buckle the overlapping section 201 of the module sleeve 200 and the base shell 300.

[0032] Furthermore, buckle the overlapping part of the wire 101 and the module sleeve 200.

[0033] Furthermore, the composition of the insulating glue 400 is calculated by mass fraction. In every 100 parts of epoxy resin E44, it contains 5 - 10 parts of 692 epoxy resin active diluent and 10 - 15 parts of ethylenediamine.

[0034] Furthermore, the composition of the insulating glue 400 is calculated by mass fraction. In every 100 parts of epoxy resin E44, it contains 8 parts of 692 epoxy resin active diluent and 12 parts of ethylenediamine.

[0035] Furthermore, after injecting the insulating glue 400 in step f, inject the sealing glue 403 into the closing section 204 and extend it to the leg wire 103 to form a sealing section 404.

[0036] Furthermore, in order to ensure the tightness of the sealing section 404, use a closing pliers to contract the closing section 204 inward.

[0037] Furthermore, close the end of the module sleeve 200 near the leg wire 103 obtained after injection molding in step f to form a closing section 203.

[0038] Further, the fixture 600 used includes an operating table 601, a footline placement board 602, a bottom board 603, a vertical board 604, a footline clamp 605 and a wire clamp 606. The footline placement board 602 is fixed at the upper end on the same side of the vertical board 604, the bottom board 603 is fixed at the lower end, and the operating table 601 is fixed in the middle. A module sleeve positioning hole 610 is provided at the exact center of the operating table 601; two guide sleeves A607 and two guide sleeves B611 are respectively provided at corresponding positions on the footline placement board 602 and the operating table 601. A slide bar 608 for supporting the up and down movement of the footline clamp 605 is arranged inside the guide sleeves A607 and B611. A footline power device 609 is fixed on the back of the vertical board 604, and the wire clamp 606 is placed at the lower end of the operating table 601; a wire harness baffle 612 is fixed on the side of the footline placement board 602, and a footline fixing groove 613 is provided in the middle of the wire harness baffle 612; two guide sleeves 617 are symmetrically arranged at both ends of the positioning plate 616 of the footline clamp 605, and the slide bar 608 passes through the guide sleeves 617, enabling the footline clamp 605 to move up and down along the slide bar 608. The lower end of the positioning plate 616 is a U-shaped clamp spring seat 618, and the U-shaped clamp spring seat 618 is fixed to the positioning plate 616.

[0039] Further, two spring limit plates 621 are symmetrically placed in the middle of the U-shaped clamp spring seat 618. Two spring placement holes 622 are symmetrically provided on the two U-shaped surfaces. Through holes 623 are also provided at positions corresponding to the spring placement holes 622 on the spring limit plates 621. After the spring 624 is sleeved on the fixed shaft, it passes through the spring placement hole 622 on one side of the U-shaped clamp spring seat 616 through the through hole 623 to the spring placement hole 622 on the other side.

[0040] Further, the bottom surface of the U-shaped clamp spring seat 618 is connected to a power device connecting plate 625, and the power device connecting plate 625 is connected to the footline power device 609.

[0041] Further, a groove is provided between the two spring limit plates 621, and a footline clamp button 626 is arranged in the groove. The footline clamp button 626 is a stepped cylindrical shape with a larger bottom and a smaller top. The lower end of it is cut into two symmetric inclined planes (instructions will be adjusted uniformly later). The upper end passes through the positioning plate 616. The footline clamp button 626 is arranged between the spring limit plate 621 and the positioning plate 616, and the two mutually limit and control its movement.

[0042] Further, the lower ends of the two spring limit plates 621 are connected to two stepped footline fixers 627 with a larger top and a smaller bottom. A groove 628 for fixing the footline is provided between the contact surfaces of the footline fixers 627. A glue injection machine access port 629 is provided on the lower side surface of the footline fixer 627, and two glue injection ports 640 symmetric to the groove 628 for fixing the footline are provided on the lower end surface of the footline fixer 627.

[0043] Further, the wire fixture 606 comprises two U-shaped clamping plates 630 and a U-shaped groove 633. The U-shaped clamping plates 630 are installed in the groove of the U-shaped groove 633. A spring B638 is provided between the bottom of the U-shaped clamping plate 630 and the U-shaped groove 633. The two U-shaped clamping plates 630 are connected through hinge holes 632. A notch 631 is provided at one end of the U-shaped clamping plate 630. The power device 634 is hinge-connected to the two U-shaped clamping plates 630 through mounting holes 635 on the U-shaped groove 633. The U-shaped groove 633 is fixed on the bottom plate 603.

[0044] A spring fixing hole 637 is provided between the mounting hole 635 and the two threaded holes 636. One ends of the two springs B638 are fixed in the spring fixing hole 637 by rivets, and the other ends are fixed on spring connectors 639 on the U-shaped clamping plate 630.

[0045] The electronic detonators produced by the above method are subjected to relevant performance tests, and the results are as follows

[0046] Seismic resistance test: According to the provisions of GB / T 5309.32 - 2004, a high-frequency vibration experiment is carried out. The electronic detonators are placed in a vibration testing machine with a cam speed of (60 ± 1) r / min and a drop height of (150 ± 2) mm, and vibrated continuously for ten minutes. The number of electronic detonators that explode during the vibration process is recorded. After the vibration ends, the initiation state of the electronic detonators is detected. Taking 100 traditional electronic detonators as group A, 100 electronic detonators added with single-component epoxy resin glue as group B, and 100 electronic detonators added with the epoxy resin glue in the above proportion of the present invention as group C, the test is carried out according to GB / T 5309.32 - 2004, and the experiment is repeated 3 times, and the average value is taken. The test results are as follows:

[0047]

[0048] Vibration resistance performance test: Taking 100 traditional electronic detonators as group A, 100 electronic detonators added with single-component epoxy resin glue as group B, and 100 electronic detonators added with the epoxy resin glue in the above proportion of the present invention as group C, the vibration test is carried out according to the experimental conditions specified in GJB5309.32 - 2004, and the experiment is repeated 3 times, and the average value is taken. The test results are as follows:

[0049]

[0050] Impact resistance test: Under the conditions of a falling hammer mass of (2.0 ± 0.002) kg and a falling height of (0.8 ± 0.1) m, the ignition part of the detonator is impacted. Using 100 traditional detonators as Group A, 100 electronic detonators with a single-component epoxy resin adhesive added as Group B, and 100 electronic detonators with the above-mentioned proportion of epoxy resin adhesive added as Group C, repeat the experiment 3 times and take the average value. The test results are as follows:

[0051]

[0052]

[0053] Beneficial effects: In view of the complex on-site use situation of existing electronic detonators, with poor anti-vibration and anti-impact capabilities of the detonators, resulting in module loosening and dropping, and thus misfiring problems, posing many safety hazards. In addition, due to the limitations of the existing basic detonator shell and the specifications and dimensions of electronic components, it is difficult to improve the electrical performance of electronic detonators. The present invention provides an electronic detonator that can be externally connected to a control module. The improved structure of the electronic detonator brings certain challenges to its mechanical properties and production difficulty due to its enlarged structure. In order to increase the mechanical properties of the electronic detonator, the present invention improves the module sleeve to make it conducive to processing. Buckling is carried out at the overlapping section of the basic shell and the module sleeve and at the overlapping section of the wire and the basic shell to ensure the mechanical strength of the structure.

[0054] Furthermore, in order to ensure the mechanical properties of the electronic detonator, the filled insulating glue is improved to obtain the insulating glue with the best components, so that the anti-vibration, impact and anti-vibration performance of the electronic detonator is optimal, and the solidification of the insulating glue is shortened.

[0055] Furthermore, in order to ensure the feasibility of the above-mentioned electronic detonator in processing, a processing fixture for this structure is invented, which can realize the industrial production of electronic detonators. Description of the Drawings

[0056] Appendix Figure 1 Schematic diagram of the external shape of the electronic detonator structure;

[0057] Appendix Figure 2 Front sectional view of the electronic detonator;

[0058] Appendix Figure 3 Partial enlarged view of the buckling part of the basic shell and the module sleeve;

[0059] Appendix Figure 4 Front view of the wire 101 after the first encapsulation;

[0060] Appendix Figure 5 Top view of the wire 101 after the first encapsulation

[0061] Appendix Figure 6 Left view of the wire 101 after the first encapsulation

[0062] Appendix Figure 7 Front view cross-sectional view of the wire 101 after the first encapsulation

[0063] Appendix Figure 8 Top view cross-sectional view of the wire 101 after the first plastic encapsulation

[0064] Appendix Figure 9 Front view of the wire 101 after the second plastic encapsulation

[0065] Appendix Figure 10 Front view cross-sectional view of the wire 101 after the second plastic encapsulation

[0066] Appendix Figure 11 Top view of the control module 100

[0067] Appendix Figure 12 Top view of the control module 100 after being connected to the leg wire 103 and the wire 101

[0068] Appendix Figure 13 Front view of the control module 100 after being connected to the leg wire 103 and the wire 101

[0069] Appendix Figure 14 Front view of the control module connected to the leg wire and the ignition part placed on the processing jig 600;

[0070] Appendix Figure 15 Front view of the control module connected to the leg wire and the ignition part placed on the processing jig 600 when the wire clamp clamps the wire 101 and moves downward

[0071] Appendix Figure 16 Left view of the control module connected to the leg wire and the ignition part placed on the processing jig 600 when the wire clamp clamps the wire 101 and moves downward

[0072] Appendix Figure 17 Schematic diagram of the module sleeve 200 filled with the insulating glue 400

[0073] Appendix Figure 18 Schematic diagram of the closing section 204 of the module sleeve 200 filled with the sealing glue 403

[0074] Appendix Figure 19 Schematic diagram of the closing section 204 closing inward

[0075] Appendix Figure 20 Official drawing of the leg wire clamp

[0076] Appendix Figure 21 Top view of the leg wire clamp

[0077] Appendix Figure 22 Front view cross-sectional view and partial enlarged view of the leg wire clamp

[0078] AppendixFigure 23 Top view of the footline fixture after removing the fixed plate

[0079] Appendix Figure 24 Bottom view of the footline fixture

[0080] Appendix Figure 25 Left view of the footline fixture

[0081] Appendix Figure 26 Front sectional view of the wire fixture

[0082] Appendix Figure 27 Left view of the wire fixture

[0083] Appendix Figure 28 Top view of the wire fixture Detailed implementation manner

[0084] As Figure 1-13 shown, an electronic detonator with an external control module includes a control module 100, a cylindrical module sleeve 200, and a base shell 300. The control module 100 is located inside the module sleeve 200. The output end of the control module 100 is connected to an ignition element 102 through a plastic-sealed wire 101, and the input end of the control module 100 is connected to a footline 103. Among them, both the ignition element 102 and the footline 103 extend outside the module sleeve 200. An insulating glue 400 is provided in the gap between the module sleeve 200 and the control module 100. The ignition element 102 is inserted into the base shell 300 and contacts the base charge 500 in the base shell 300. Part of the module sleeve 200 and the base shell 300 are sleeved with each other, and the sleeved part is an overlapping section 201. The overlapping section 201 is a bayonet structure, thus obtaining the electronic detonator with an external control module.

[0085] Furthermore, the overlapping section of the wire 101 and the module sleeve 200 is a bayonet structure.

[0086] Furthermore, there is a necking section 204 near the footline 103 on the module sleeve 200.

[0087] Furthermore, the necking section 204 is filled with a sealing glue 403 whose hardness is lower than that of the insulating glue 400.

[0088] Furthermore, the sealing glue 403 fills and extends beyond the necking section 204 to the footline 103 to form a sealing section 404.

[0089] Furthermore, the part of the module sleeve 200 that sleeves the control module 100 is a protection section 202, and the diameter of the overlapping section 201 where the module sleeve 200 and the base shell 300 are sleeved is smaller than the diameter of the protection section 202.

[0090] Furthermore, between the overlapping section 201 and the protection section 202 is a gradually converging transition section 203.

[0091] Further, after the wire 101 is encapsulated, it is in a funnel shape.

[0092] Further, the wire 101 is encapsulated twice. For the first encapsulation, an insulating medium 401 with a greater hardness than the insulating glue 400 is used for encapsulation. For the second encapsulation, a sealing glue 403 is used for encapsulation.

[0093] Further, the wire 101 forms a stepped shape after the first encapsulation.

[0094] Further, after the first encapsulation of the wire 101, an isolation hole 402 is provided in the middle of the entire encapsulated body, and the isolation hole 402 is between two wires.

[0095] Further, a protrusion 1011 is provided in the middle of the wire 101.

[0096] An isolation hole 402 is provided between two wires 101.

[0097] Further, one end of the wire 101 connected to the control module 100 deviates from the central axis to form a turning section 1012, and the entire wire 101 presents a Z-shaped structure.

[0098] Further, for the control module 100, three connection points are provided at one end connected to the leg wire 103, namely connection point A 1031, connection point B 1032, and connection point C 1033. Among them, connection point A 1031 and connection point B 1032 are used for connection with the wire 103, and connection point C 1033 is used for further strengthening the wire 103.

[0099] Further, after the wire 103 is coincidentally connected to connection point A 1031 and connection point B 1032 and then flipped 180 degrees, connection point C 1033 fixes the wire 103.

[0100] Further, for the control module 100, small protrusions 1034 protruding outward are provided at the connection end of its PCB board with the leg wire.

[0101] Further, the insulating glue 400 fills up and exceeds the module sleeve 200 and extends onto the leg wire 103 to form a sealing glue section 404 with a gradually narrowing opening to prevent rainwater from entering the module sleeve.

[0102] As Figure 14-25 shown, further, the processing method of an electronic detonator with an external control module is characterized by including the following steps:

[0103] a. Encapsulate the wire 101 so that the encapsulation layer of the encapsulated wire 101 presents a funnel shape, with parts of the wire 101 exposed at both ends, and make the inner diameter of the overlapping section 201 of the encapsulated wire match that of the module sleeve 200. One end of the exposed wire 101 is connected to the output end of the control module 100, and the other end is connected to the ignition element 102.

[0104] b. Connect the input end of the control module 100 to the leg wire 103.

[0105] c. Place the module sleeve 200 on the module sleeve positioning hole 610 on the operation table 601 of the processing fixture 600.

[0106] d. Place the leg wire 103 connected to the control module 100 obtained in step b in the groove 613 on the upper wire harness baffle 612 of the processing fixture 600 for fixation, and vertically pass the ignition element 102 through the module sleeve 200.

[0107] e. Clamp the wire 102 with the wire clamp 606 under the operation table 601 and move it vertically downward.

[0108] f. Clamp the leg wire 103 with the leg wire clamp 605 and move it downward so that the glue injection machine access port 629 at the lower end of the leg wire clamp 605 extends into the module sleeve 200 to fill the insulating glue 400.

[0109] g. Load the base charge 500 into the base casing 300.

[0110] i. Insert the ignition element 102 at the output end of the control module 100 obtained in step f into the base casing 300 to contact the base charge 500 in the base casing, and then respectively fasten the overlapping section 201 of the module sleeve 200 and the base casing 300.

[0111] Furthermore, fasten the overlapping part of the wire 101 and the module sleeve 200.

[0112] Furthermore, the composition of the insulating glue 400 is calculated by mass fraction. In every 100 parts of epoxy resin E44, it contains 5 - 10 parts of 692 epoxy resin active diluent and 10 - 15 parts of ethylenediamine.

[0113] Furthermore, the composition of the insulating glue 400 is calculated by mass fraction. In every 100 parts of epoxy resin E44, it contains 8 parts of 692 epoxy resin active diluent and 12 parts of ethylenediamine.

[0114] Furthermore, after injecting the insulating glue 400 in step f, inject the sealing glue 403 into the closing section 204 and extend it to the leg wire 103 to form the sealing section 404.

[0115] Furthermore, use a closing pliers to contract the closing section 204 inward.

[0116] As shown Figure 16-23 in the figure, the fixture 600 used consists of an operating table 601, a wire foot placement board 602, a bottom board 603, a vertical board 604, a wire foot clamp 605 and a wire clamp 606. The wire foot placement board 602 is fixed at the upper end on the same side of the vertical board 604, the bottom board 603 is fixed at the lower end, and the operating table 601 is fixed in the middle. A module sleeve positioning hole 610 is provided in the center of the operating table 601. Two guide sleeves A607 and two guide sleeves B611 are respectively provided at corresponding positions on the wire foot placement board 602 and the operating table 601. A slide bar 608 for supporting the up and down movement of the wire foot clamp 605 is arranged in the guide sleeves A607 and B611. A wire foot power device 609 is fixed on the back of the vertical board 604. The wire clamp 606 is placed at the lower end of the operating table 601. A wire harness baffle 612 is fixed on the side of the wire foot placement board 602, and a wire foot fixing groove 613 is provided in the middle of the wire harness baffle 612. Two guide sleeves 617 are symmetrically arranged at both ends of the positioning plate 616 of the wire foot clamp 605. The slide bar 608 passes through the guide sleeves 617, enabling the wire foot clamp 605 to move up and down along the slide bar 608. The lower end of the positioning plate 616 is a U-shaped clamp spring seat 618, and the U-shaped clamp spring seat 618 is fixed to the positioning plate 616.

[0117] Further, two spring limit plates 621 are symmetrically placed in the middle of the U-shaped clamp spring seat 618. Spring placement holes 622 are symmetrically provided on the two U-shaped surfaces. Through holes 623 are also provided at positions corresponding to the spring placement holes 622 on the spring limit plates 621. After the spring 624 is sleeved on the fixed shaft, it passes through the spring placement hole 622 on one side of the U-shaped clamp spring seat 616 through the through hole 623 to the spring placement hole 622 on the other side.

[0118] Further, the bottom surface of the U-shaped clamp spring seat 618 is connected to a power device connecting plate 625, and the power device connecting plate 625 is connected to the wire foot power device 609.

[0119] Further, a groove is provided between the two spring limit plates 621, and a wire foot clamp button 626 is arranged in the groove. The wire foot clamp button 626 is a stepped cylindrical shape with a larger bottom and a smaller top. The lower end of the cylinder is cut into two symmetric inclined planes (instructions will be adjusted uniformly later). The upper end passes through the positioning plate 616. The wire foot clamp button 626 is arranged between the spring limit plate 621 and the positioning plate 616, and the two mutually limit and control its movement.

[0120] Further, the lower ends of the two spring limit plates 621 are connected to two stepped wire fixers 627 that are larger at the top and smaller at the bottom. A groove 628 for fixing the wire is provided between the contact surfaces of the wire fixer 627. A glue injector access port 629 is provided on the lower side surface of the wire fixer 627, and two glue injection ports 640 symmetrical to the groove 628 for fixing the wire are provided on the lower end surface of the wire fixer 627.

[0121] Further, the wire clamp 606 includes two U-shaped clamping plates 630 and a U-shaped groove 633. The U-shaped clamping plates 630 are installed in the groove of the U-shaped groove 633. A spring B638 is provided between the bottom of the U-shaped clamping plate 630 and the U-shaped groove 633. The two U-shaped clamping plates 630 are connected through hinge holes 632. A notch 631 is provided at one end of the U-shaped clamping plate 630. The power device 634 is hinge-connected to the two U-shaped clamping plates 630 through the mounting holes 635 on the U-shaped groove 633, and the U-shaped groove 633 is fixed on the bottom plate 603.

[0122] A spring fixing hole 637 is provided between the mounting hole 635 and the two threaded holes 636. One ends of the two springs B638 are fixed in the spring fixing hole 637 by rivets, and the other ends are fixed on the spring connectors 639 on the U-shaped clamping plate 630.

[0123] The present invention is not limited to the embodiments described in the specific embodiments. Those skilled in the art can obtain other embodiments according to the technical solutions of the present invention, which also belong to the scope of the technical innovation of the invention. Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims

1. A processing fixture for an electronic detonator with an externally connected control module, characterized in that, The processing fixture (600) consists of an operating table (601), a wire foot placement board (602), a bottom board (603), a vertical board (604), a wire foot clamp (605) and a wire clamp (606). On the same side of the upper end of the vertical board (604), the wire foot placement board (602) is fixed, at the lower end the bottom board (603) is fixed, and in the middle the operating table (601) is fixed. In the center of the operating table (601), a module sleeve positioning hole (610) is provided; at corresponding positions on the wire foot placement board (602) and the operating table (601), two guide sleeves A (607) and two guide sleeves B (611) are respectively provided. Inside the guide sleeves A (607) and guide sleeves B (611), there are sliding rods (608) that support the up and down movement of the wire foot clamp (605). On the back of the vertical board (604), a wire foot power device (609) is fixed. Below the operating table (601), the wire clamp (606) is placed; on the side of the wire foot placement board (602), a wire harness baffle (612) is fixed, and in the middle of the wire harness baffle (612), a wire foot fixing groove (613) is opened; at both ends of the positioning plate (616) of the wire foot clamp (605), two guide sleeves C (617) are symmetrically provided. The sliding rod (608) passes through the guide sleeves C (617), enabling the wire foot clamp (605) to move up and down along the sliding rod (608). At the lower end of the positioning plate (616) is a U-shaped clamp spring seat (618), and the U-shaped clamp spring seat (618) is fixed to the positioning plate (616); in the middle of the U-shaped clamp spring seat (618), two spring limiting plates (621) are symmetrically placed. Among them, on the two U-shaped surfaces, spring placement holes (622) are symmetrically provided. At positions corresponding to the spring placement holes (622) on the spring limiting plates (621), through holes (623) are also provided. After the spring (624) is sleeved on the fixed shaft, it passes through the through hole (623) from the spring placement hole (622) on one side of the U-shaped clamp spring seat (618) to the spring placement hole (622) on the other side; between the two spring limiting plates (621), a first groove is provided, and in the first groove, a wire foot clamp button (626) is provided; the two spring limiting plates (621) are connected to two stepped wire foot fixers (627) that are larger at the top and smaller at the bottom. Between the contact surfaces of the wire foot fixers (627), a second groove (628) for fixing the wire foot is provided.

2. The processing fixture according to claim 1, wherein: The bottom surface of the U-shaped clamp spring seat (618) is connected to a power device connecting plate (625), and the power device connecting plate (625) is connected to the wire foot power device (609).

3. The processing fixture according to claim 1, wherein, The wire foot clamp button (626) is a stepped cylindrical shape that is larger at the bottom and smaller at the top. The lower end of it is cut into two symmetrical inclined planes. The upper end passes through the positioning plate (616). The wire foot clamp button (626) is arranged between the spring limiting plate (621) and the positioning plate (616), and the two mutually limit and control its movement.

4. The processing jig according to claim 1, wherein, On the lower side of the side surface of the foot wire fixer (627), there is a glue injector access port (629), and on the lower end surface of the foot wire fixer (627), there are two glue injection ports (640) symmetrically arranged with respect to the second groove (628) for fixing the foot wire.

5. The processing fixture according to claim 1, characterized in that, The wire clamp (606) consists of two U-shaped clamping plates (630) and a U-shaped groove (633). The U-shaped clamping plates (630) are installed in the groove of the U-shaped groove (633). A spring B (638) is provided between the bottom of the U-shaped clamping plates (630) and the U-shaped groove (633). And the two U-shaped clamping plates (630) are connected through hinge holes (632). A notch (631) is provided at one end of the U-shaped clamping plate (630). The wire power device (634) is hingedly connected to the two U-shaped clamping plates (630) through the mounting holes (635) on the U-shaped groove (633), and the U-shaped groove (633) is fixed on the bottom plate (603). On both sides of the bottom of the U-shaped groove (633), a threaded hole (636) is respectively provided. Spring fixing holes (637) are provided between the mounting hole (635) and the two threaded holes (636). One end of the two springs B (638) is fixed in the spring fixing hole (637) by a rivet, and the other end is fixed on the spring connector (639) on the U-shaped clamping plate (630).

6. An electronic detonator with an external control module obtained by preparing the processing fixture according to any one of claims 1-5, comprising a control module (100), a cylindrical module sleeve (200), and a base shell (300), characterized in that, The control module (100) is located inside the module sleeve (200). The output end of the control module (100) is connected to the ignition element (102) through the plastic-sealed wire (101). The input end of the control module (100) is connected to the foot wire (103). Among them, both the ignition element (102) and the foot wire (103) extend outside the module sleeve (200). An insulating glue (400) is provided in the gap between the module sleeve (200) and the control module (100). The ignition element (102) is inserted into the base tube shell (300) and contacts the base charge (500) in the base tube shell (300). Part of the module sleeve (200) and the base tube shell (300) are sleeved with each other, and the sleeved part is the overlapping section (201). The overlapping section (201) is a bayonet structure. The module sleeve (200) has a necking section (204) near the foot wire (103). The part of the module sleeve (200) that sleeves the control module (100) is the protection section (202). The diameter of the overlapping section (201) where the module sleeve (200) and the base tube shell (300) are sleeved is smaller than the diameter of the protection section (202).

7. The electronic detonator with an external control module according to claim 6, characterized in that, The overlapping section of the wire (101) and the module sleeve (200) is a bayonet structure.

8. The electronic detonator with an external control module according to claim 6, characterized in that, The necking section (204) is filled with a sealing glue (403) whose hardness is lower than that of the insulating glue (400).

9. The electronic detonator with an external control module according to claim 8, characterized in that, The sealing glue (403) fills beyond the necking section (204) and extends to the foot wire (103) to form a sealing section (404).

10. The electronic detonator with an external control module according to claim 6, characterized in that, Between the overlapping section (201) and the protection section (202), there is a gradually tapering transition section (203).

11. The electronic detonator with an external control module according to claim 6, wherein, The wire (101) is funnel-shaped after plastic sealing, and presents a stepped shape at the lower end of the funnel.

12. The electronic detonator with an external control module according to claim 6, wherein, The wire (101) is encapsulated twice. For the first encapsulation, an insulating medium (401) harder than the insulating glue (400) is used for encapsulation. For the second encapsulation, a sealing glue (403) is used for encapsulation.

13. The electronic detonator with an external control module according to claim 12, characterized in that, The wire (101) forms a stepped shape after the first encapsulation.

14. The electronic detonator with an external control module according to claim 12, characterized in that, After the first encapsulation of the wire (101), an isolation hole (402) is provided in the middle of the entire encapsulation body. The isolation hole (402) is between two wires.

15. The electronic detonator with an external control module according to claim 6, wherein A protrusion (1011) is provided in the middle of the wire (101).

16. The electronic detonator with an external control module according to claim 6, wherein, One end of the wire (101) connected to the control module (100) deviates from the central axis to form a turning section (1012), and the entire wire (101) presents a Z-shaped structure.

17. The electronic detonator with an external control module according to claim 6, characterized in that, One end of the control module (100) connected to the leg wire (103) is provided with three connection points, namely connection point A (1031), connection point B (1032), and connection point C (1033). Among them, connection point A (1031) and connection point B (1032) are used to connect to the wire (101), and connection point C (1033) is used to further reinforce the wire (101).

18. The electronic detonator with an external control module according to claim 17, characterized in that, After the wire (101) is overlapped and connected to connection point A (1031) and connection point B (1032) and then flipped 180 degrees, connection point C (1033) fixes the wire (101).

19. The electronic detonator with an external control module according to claim 6, characterized in that, For the control module (100), its PCB board is provided with a small protrusion (1034) protruding outward at the connection end with the leg wire.

20. A processing method for electronic detonators with an external control module processed by using the processing fixture according to any one of claims 6-19, characterized in that, It includes the following steps: a. Encapsulate the wire (101) so that the encapsulation layer of the encapsulated wire (101) presents a funnel shape, with part of the wire (101) exposed at both ends, and make the encapsulation layer of the encapsulated wire (101) fit with the inner diameter of the overlapping section (201). One end of the exposed wire (101) is connected to the output end of the control module (100), and one end is connected to the ignition part (102); b. Connect the input end of the control module (100) to the leg wire (103); c. Place the module sleeve (200) on the module sleeve positioning hole (610) on the operation table (601) of the processing fixture (600); d. Place the leg wire (103) connected to the control module (100) obtained in step b in the leg wire fixing groove (613) on the upper wire harness baffle (612) of the processing fixture (600) for fixation, and vertically pass the ignition part (102) through the module sleeve (200); e. Use the wire clamp (606) under the operation table (601) to clamp the wire (101) and move it vertically downward; f. Use the leg wire clamp (605) to clamp the leg wire (103) and move it downward so that the glue injection machine access port (629) at the lower end of the leg wire clamp (605) extends into the module sleeve (200) to fill the insulating glue (400); g. Load the base charge (500) into the base shell (300); i. Insert the igniter (102) at the output end of the control module (100) obtained in step f into the base shell (300) to contact the base charge (500) in the base shell, and then fasten the overlapping section (201) of the module sleeve (200) and the base shell (300) respectively.

21. The processing method of the electronic detonator with an external control module as claimed in claim 20, fasten the overlapping part of the wire (101) and the module sleeve (200).

22. The processing method of the electronic detonator with an external control module according to claim 20, characterized in that, The composition of the insulating glue (400) is calculated by mass fraction, including epoxy resin E44, and contains 5 - 10 parts of 692 epoxy resin active diluent and 10 - 15 parts of ethylenediamine in every 100 parts of epoxy resin E44.

23. The processing method of the electronic detonator with an external control module according to claim 22, characterized in that, The composition of the insulating glue (400) is calculated by mass fraction, and contains 8 parts of 692 epoxy resin active diluent and 12 parts of ethylenediamine in every 100 parts of epoxy resin E44.

24. The processing method of the electronic detonator with an external control module according to claim 20, characterized in that, After injecting the insulating glue (400) in step f, inject the sealing glue (403) into the closing section (204) and extend it to the leg wire (103) to form the sealing section (404).

25. The processing method of the electronic detonator with an external control module according to claim 24, characterized in that, Use a closing pliers to shrink the closing section (204) inward.

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