An automatic device for detecting the resistance of ignition wires

Abstract

This utility model belongs to the field of ignition device wire resistance testing technology, specifically relating to an automatic ignition device wire resistance testing equipment; it includes a workbench assembly, an ignition device fixture assembly, and a resistance testing system; the resistance testing system includes a resistance detector and a contact mechanism; the contact mechanism is mounted on the workbench assembly, and the ignition device fixture assembly is connected to the contact mechanism via a lower connecting end, with the upper electrical contact on the connecting end making contact with the lower electrical contact on the contact mechanism; the upper electrical contact is connected to a conductive socket on the ignition device fixture assembly; the upper end of the ignition device fixture assembly is an ignition device holder; the ignition device holder is used to clamp the ignition device, and the ignition device wire is connected to the conductive socket; this invention solves the problems of low efficiency and poor consistency in traditional manual testing, significantly improving testing efficiency, reducing labor costs, and simultaneously improving testing accuracy, ensuring stable and reliable performance of the ignition device.

Description

Technical Field

[0001] This utility model belongs to the field of ignition device wire resistance detection technology, specifically relating to an automatic ignition device wire resistance detection equipment. Background Technology

[0002] Ignition devices, as key components, are widely used in various military and civilian fields. The resistance of their lead wires is one of the important indicators for evaluating their performance. Currently, the detection of ignition device lead wire resistance is mostly done manually. Manual testing is time-consuming, labor-intensive, and inefficient, failing to meet the needs of large-scale production. Furthermore, human error can lead to inaccurate test results, affecting the performance evaluation and safe use of the ignition device. Utility Model Content

[0003] This invention aims to solve the problems of low detection efficiency and poor safety in manually testing the resistance of ignition wires.

[0004] This utility model provides the following technical solution: an automatic device for detecting the resistance of ignition fixture wires, comprising a workbench assembly, an ignition fixture fixture assembly, and a resistance detection system; the resistance detection system includes a resistance detector and a contact mechanism; the contact mechanism is mounted on the workbench assembly, and the ignition fixture fixture assembly is connected to the contact mechanism via a lower connecting end, with the upper electrical contact on the connecting end making contact with the lower electrical contact on the contact mechanism; the upper electrical contact is connected to a conductive socket on the ignition fixture fixture assembly; the upper end of the ignition fixture fixture assembly is an ignition fixture holder; the ignition fixture holder is used to clamp the ignition fixture, and the conductive socket is used to connect to the ignition fixture wire.

[0005] Furthermore, the lower end of the ignition fixture tooling assembly includes a ring-shaped plug with two radially spaced upper electrical contacts inside the plug; the contact mechanism includes three concentric rings, the outer concentric ring is connected to the plug, and the two ring-shaped lower electrical contacts are coaxially mounted in the middle concentric ring and the inner concentric ring, respectively, with the two upper electrical contacts engaging with the two lower electrical contacts respectively.

[0006] Furthermore, the ignition fixture fixture assembly includes a nut and an externally threaded jaw with a longitudinal groove; the nut engages with the externally threaded jaw, and the engagement surface is a conical surface that is narrower at the top and wider at the bottom; when the nut is tightened downwards, it causes the externally threaded jaw to contract and clamp the ignition fixture.

[0007] Furthermore, the conductive socket on the ignition fixture assembly is a round hole, allowing the ignition wire to be inserted into the conductive socket for power connection.

[0008] Furthermore, the conductive socket on the ignition fixture tooling assembly is an elongated hole, and a clamping contact is provided inside the conductive socket. The end of the ignition wire is connected to a terminal block, and the clamping contact is used to clamp the inserted terminal block and conduct electricity.

[0009] Furthermore, the workbench assembly includes a protective cover that covers the workbench to form an enclosed workspace, and a lifting door assembly is provided on the protective cover.

[0010] Furthermore, an auxiliary clamping device is installed on the workbench to match the ignition fixture tooling assembly. The auxiliary clamping device includes a hand-cranked linear guide slide and pneumatic clamping fingers installed at the working end of the hand-cranked linear guide slide.

[0011] Furthermore, the lifting door assembly includes a lifting cylinder, a guide rail, and a lifting door. The guide rail is installed on both sides of the window on the protective cover, and the lifting door slides in conjunction with the guide rail. One end of the lifting cylinder is connected to the lifting door, and the other end is fixed.

[0012] Furthermore, the plug has an annular groove, and the outer wall of the concentric ring of the outer layer of the contact mechanism is provided with a spring locking point that can engage the annular groove.

[0013] Compared with the prior art, the advantages of this utility model are:

[0014] This utility model provides an automatic device for detecting the resistance of ignition fixture wires. By cooperating with the radially distributed upper electrical contacts on the ignition fixture fixture assembly and the concentric ring structure of the lower electrical contacts on the contact mechanism, it achieves rapid and precise docking between the ignition fixture fixture and the contact mechanism, ensuring electrical continuity stability and significantly reducing manual alignment time. The protective cover and the lifting door assembly form an isolated working space. The lifting door is driven by a cylinder to open and close, effectively isolating external interference (such as dust or accidental contact), meeting the safety requirements of explosion-proof scenarios and improving operational safety. It solves the problems of low efficiency and poor consistency in traditional manual testing, significantly improving testing efficiency, reducing labor costs, and simultaneously improving testing accuracy, ensuring the stable and reliable performance of the ignition fixture. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the installation of the ignition fixture tooling assembly;

[0016] Figure 2 Schematic diagram of the ignition fixture tooling assembly for Product 1 Figure 1 ;

[0017] Figure 3 Schematic diagram of the ignition fixture tooling assembly for Product 1 Figure 2 ;

[0018] Figure 4 This is a sectional view of the ignition fixture assembly for Product 1.

[0019] Figure 5 Schematic diagram of the ignition fixture tooling assembly for Product 1 Figure 3 ;

[0020] Figure 6 This is a sectional view of the ignition fixture assembly for Product 2.

[0021] Figure 7 This is a schematic diagram of the ignition fixture tooling assembly for Product 2. Figure 1 ;

[0022] Figure 8 This is a schematic diagram of Product 2;

[0023] Figure 9 This is a schematic diagram of the contact mechanism.

[0024] Figure 10 A sectional view of the ignition fixture assembly and contact mechanism combination;

[0025] Figure 11 This is a schematic diagram of a resistance detection system;

[0026] Figure 12 This is a schematic diagram of the protective shield;

[0027] Figure 13 This is a schematic diagram of a lifting door assembly.

[0028] In the diagram: 1-Igniter fixture assembly; 1.1-Upper electrical contact; 1.2-Conductive socket; 1.3-Plug; 13.1-Ring groove; 1.4-Nut; 1.5-External threaded jaw; 1.6-Clamping contact; 2-Resistance detection system; 2.1-Resistance detector; 2.2-Contact mechanism; 2.3-Lower electrical contact; 2.4-Spring catch; 3-Workbench; 4-Igniter; 4.1-Wire; 4.2-Terminal; 5-Guard cover; 6-Hand-cranked linear guide slide; 7-Pneumatic clamping finger; 8-Lifting cylinder; 9-Guide slide rail; 10-Lifting door. Detailed Implementation

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 10 , Figure 11 As shown: An automatic device for detecting the resistance of ignition device wires includes a workbench assembly, an ignition device clamping fixture assembly 1, and a resistance detection system 2. The resistance detection system 2 includes a resistance detector 2.1 and contact mechanisms 2.2. The resistance detector 2.1 is a commercially available instrument, and its detection wire harness is connected to the two contact mechanisms 2.2 respectively. The contact mechanisms 2.2 are mounted on the workbench 3 of the workbench assembly. The ignition device clamping fixture assembly 1 is connected to the contact mechanisms 2.2 through its lower connecting end. The upper electrical contact 1.1 on the connecting end is in contact with the lower electrical contact 2.3 on the contact mechanism 2.2. The upper electrical contact 1.1 is connected to the conductive socket 1.2 on the ignition device clamping fixture assembly 1. The upper end of the ignition device clamping fixture assembly 1 is an ignition device holder. The ignition device holder is used to clamp the ignition device 4, and the wire 4.1 of the ignition device 4 is connected to the conductive socket 1.2.

[0031] like Figure 12 As shown: The workbench assembly includes a protective cover 5, which covers the workbench 3 to form a closed workspace. A lifting door assembly is installed on the protective cover 5.

[0032] like Figure 13 As shown: The lifting door assembly includes a lifting cylinder 8, a guide rail 9, and a lifting door 10. The guide rail 9 is installed on both sides of the window on the protective cover 5. The lifting door 10 slides in conjunction with the guide rail 9. The lifting door 10 retracts towards the bottom of the workbench 3. One end of the lifting cylinder 8 is connected to the lifting door 10, and the other end is fixed to the workbench assembly. Before the ignition device test, the lifting door 10 is in the open state. The ignition device fixture assembly 1 containing the ignition device is placed on the contact mechanism 2.2. The lifting door 10 rises and closes. The resistance detector 2.1 is powered on to test and record the measured resistance value. After the test is completed, the lifting door 10 is lowered and opened, and the ignition device fixture assembly 1 containing the ignition device is removed.

[0033] like Figure 2 , Figure 3 , Figure 9 , Figure 10As shown: The lower end of the ignition fixture assembly 1 includes a circular plug 1.3, within which are two radially spaced upper electrical contacts 1.1. The contact mechanism 2.2 includes three concentric rings. The outer concentric ring is connected to the plug 1.3, and the two annular lower electrical contacts 2.3 are coaxially mounted in the middle and inner concentric rings, respectively. The two upper electrical contacts 1.1 engage with the two lower electrical contacts 2.3. The contact mechanism 2.2 uses a concentric ring structure, allowing for unrestricted direction when inserting the ignition fixture assembly 1. The ignition is pre-clamped onto the ignition fixture assembly 1, and then the ignition fixture assembly 1 is inserted into the contact mechanism 2.2 in one step. The current ignition testing time can be used for the assembly of the next ignition with the ignition fixture assembly 1, significantly improving testing efficiency.

[0034] The plug 1.3 of the ignition fixture assembly 1 has an annular groove 1.3.1. The outer wall of the concentric ring of the contact mechanism 2.2 has a spring-loaded locking point 2.4 that engages with the annular groove 1.3.1. When the plug 1.3 is inserted, the spring-loaded locking point 2.4 is first compressed back, and then pops out and engages with the annular groove 1.3.1. The spring-loaded locking point 2.4 holds the annular groove 1.3.1 to limit the plug 1.3, ensuring that the upper electrical contact 1.1 and the lower electrical contact 2.3 maintain close contact and ensure stable circuit continuity. The spring-loaded locking point 2.4 is a ball bearing + spring structure. The spring applies an elastic thrust to the ball bearing, allowing the ball bearing to retract and also engage with the annular groove 1.3.1 of the plug 1.3.

[0035] like Figure 5 , Figure 7 As shown: The ignition fixture fixture assembly 1 includes a nut 1.4 and an external threaded jaw 1.5 with a longitudinal groove; the ignition fixture 4 can be placed in the external threaded jaw 1.5; the nut 1.4 and the external threaded jaw 1.5 are screwed together, and the screwing surface is a conical surface that is narrow at the top and wide at the bottom; when the nut 1.4 is screwed down, it causes the external threaded jaw 1.5 to retract and clamp the ignition fixture.

[0036] like Figure 4 , Figure 5 As shown: The conductive socket 1.2 on the ignition fixture tooling assembly 1 corresponding to the product type 1 ignition device is a round hole, and the wire 4.1 of the ignition device 4 is inserted into the conductive socket 1.2 for conduction.

[0037] like Figure 6 , Figure 7 , Figure 8As shown: The conductive socket 1.2 on the ignition fixture assembly 1 corresponding to the Type II ignition device is an elongated hole. A clamping contact 1.6 is provided inside the conductive socket 1.2. The end of the wire 4.1 of the ignition device 4 is connected to the terminal 4.2. The clamping contact 1.6 is used to clamp the inserted terminal 4.2 and conduct electricity. The clamping contact 1.6 is a spring-driven terminal, which presses against the terminal 4.2 under the spring's force. The entrance of the conductive socket 1.2 is chamfered to facilitate the insertion of the terminal 4.2.

[0038] like Figure 1 As shown: The product type 3 igniter is relatively tall. Therefore, the workbench 3 is equipped with an auxiliary clamping device that matches the igniter fixture assembly 1. The auxiliary clamping device includes a hand-cranked linear guide slide 6 and a pneumatic clamping finger 7 installed at the working end of the hand-cranked linear guide slide 6. The height of the pneumatic clamping finger 7 is adjusted by the hand-cranked linear guide slide 6, and the pneumatic clamping finger 7 grips and fixes the igniter.

[0039] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An apparatus for automatically detecting the resistance of a lead of an ignition device, characterized by: The assembly includes a workbench assembly, an ignition fixture assembly (1), and a resistance detection system (2). The resistance detection system (2) includes a resistance detector (2.1) and a contact mechanism (2.2). The contact mechanism (2.2) is mounted on the workbench (3) of the workbench assembly. The ignition fixture assembly (1) is connected to the contact mechanism (2.2) through the lower connecting end. The upper electrical contact (1.1) on the connecting end is in contact with the lower electrical contact (2.3) on the contact mechanism (2.2). The upper electrical contact (1.1) is connected to the conductive socket (1.2) on the ignition fixture assembly (1). The upper end of the ignition fixture assembly (1) is an ignition fixture holder. The ignition fixture holder is used to clamp the ignition device (4), and the conductive socket (1.2) is used to connect to the wire (4.1) of the ignition device (4).

2. An apparatus for automatically detecting the resistance of a lead of an ignition device as recited in claim 1, wherein: The lower end of the ignition fixture tooling assembly (1) includes a ring-shaped plug (1.3), and there are two radially spaced upper electrical contacts (1.1) inside the plug (1.3); the contact mechanism (2.2) includes three concentric rings, the outer concentric ring is connected to the plug (1.3), and the two ring-shaped lower electrical contacts (2.3) are coaxially installed in the middle concentric ring and the inner concentric ring, respectively, and the two upper electrical contacts (1.1) are engaged with the two lower electrical contacts (2.3), respectively.

3. An apparatus for automatically detecting the resistance of a conductor of an ignition device as recited in claim 2, wherein: The ignition fixture fixture assembly (1) includes a nut (1.4) and an external threaded jaw (1.5) with a longitudinal groove. The nut (1.4) engages with the external threaded jaw (1.5), and the engagement surface is a conical surface that is narrow at the top and wide at the bottom. When the nut (1.4) is tightened downwards, it causes the external threaded jaw (1.5) to retract and clamp the ignition fixture.

4. An apparatus for automatically detecting the resistance of a conductor of an ignition device as claimed in claim 3, characterized in that: The conductive socket (1.2) on the ignition fixture tooling assembly (1) is a round hole, and the wire (4.1) of the ignition device (4) can be inserted into the conductive socket (1.2) to connect to electricity.

5. An apparatus for automatically detecting the resistance of a conductor of an ignition device as recited in claim 3, wherein: The conductive socket (1.2) on the ignition fixture fixture assembly (1) is an elongated hole. A clamping contact (1.6) is provided inside the conductive socket (1.2). The end of the wire (4.1) of the ignition fixture (4) is connected to the terminal (4.2). The clamping contact (1.6) is used to clamp the inserted terminal (4.2) and conduct electricity.

6. An apparatus for automatically detecting the resistance of a conductor of an ignition device according to any one of claims 1 to 5, characterized in that: The workbench assembly includes a protective cover (5), which covers the workbench (3) to form a closed workspace, and a lifting door assembly is provided on the protective cover (5).

7. An apparatus for automatically detecting the resistance of a lead of an ignition device as recited in claim 1, wherein: The workbench (3) is equipped with an auxiliary clamping device that matches the ignition fixture tooling assembly (1). The auxiliary clamping device includes a hand-cranked linear guide slide (6) and a pneumatic clamping finger (7) installed at the working end of the hand-cranked linear guide slide (6).

8. An apparatus for automatically detecting the resistance of a conductor of an ignition device as recited in claim 6, wherein: The lifting door assembly includes a lifting cylinder (8), a guide rail (9), and a lifting door (10). The guide rail (9) is installed on both sides of the window on the cover (5). The lifting door (10) slides in cooperation with the guide rail (9). One end of the lifting cylinder (8) is connected to the lifting door (10), and the other end is fixed.

9. An apparatus for automatically detecting the resistance of a lead of an ignition device as recited in claim 2, wherein: The plug (1.3) is provided with a ring groove (1.3.1), and the outer wall of the concentric ring of the outer layer of the contact contact mechanism (2.2) is provided with a spring clamping point (2.4) capable of engaging the ring groove (1.3.1).

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