Sleeve type combined impact igniter cap fixing tool

Abstract

The utility model relates to a sleeve type combined percussion cap fixing tool which solves the problems that an existing tool is heavy and not easy to take, the fixing efficiency of a percussion cap is low, and products of the same type cannot be used universally. Comprising a sleeve (1), a pre-pressing column (2) and a pressing column (3), and the outer diameter of the sleeve (1) is consistent with the inner diameter of a battery shell (6) and is higher than the battery shell (6); the outer diameters of the pre-pressing column (2) and the pressing column (3) are consistent with the inner diameter of the sleeve (1); the bottom of the pre-pressing column (2) is provided with a concave platform which is matched with the formed igniter cap seat (4) in shape. The device is convenient to operate, good in structural strength and high in quality reliability, and similar products can be mutually borrowed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the pyrotechnics hot battery technical field, specifically relates to a sleeve type combined impact fire cap fixing tool. BACKGROUND

[0002] The impact type excited hot battery is welded with a fire cap seat at the bottom of the shell, and the impact fire cap is fixed through the closed fire cap seat. When the fire cap is fixed, the shaking of the fire cap or the damage of the fire cap will affect the activation reliability of the hot battery.

[0003] At present, one way of fixing the fire cap of the hot battery is to put the fire cap into the fire cap seat, and the impact fire cap is fixed in the fire cap seat through the inclined closing and flat closing of the fire cap fixing tool. The diameter of the inclined closing and flat closing tool is the same as the inner diameter of the hot battery shell, and the contact parts with the fire cap seat are inclined and flat angles respectively.

[0004] 1. Because the diameter of the tool is much larger than the diameter of the fire cap seat, when the fire cap fixing tool acts on the edge of the fire cap seat, the size difference between the stress surface of the tool and the stress surface of the fire cap seat is large, the force acting on the edge of the fire cap is unbalanced when the tool is stressed, the deformation of the fire cap seat is large after closing, and the fire cap is squeezed, loose or shaken;

[0005] 2. The pressure on the welding part of the fire cap seat can easily cause the fire cap seat to fall off;

[0006] 3. The tool is heavy and not easy to take, and the efficiency of fixing the fire cap is low;

[0007] 4. The parameter setting pressure of the fire cap fixing tool is large, the stress of the fire cap is too large, and damage is easy to occur;

[0008] 5. The tool is a special tool, and the same type of products cannot be used. UTILITY MODEL CONTENTS

[0009] In view of the deficiencies of the prior art, the utility model provides a sleeve type combined impact fire cap fixing tool which is convenient to operate, has good structural strength, high quality reliability and can be borrowed by similar products.

[0010] The utility model is realized by the following technical schemes:

[0011] A sleeve type combined impact fire cap fixing tool, including sleeve 1, pre-pressing column 2 and pressure column 3, the outer diameter of sleeve 1 is consistent with the inner diameter of battery shell 6, and the height of sleeve 1 is higher than that of battery shell 6;The outer diameter of pre-pressing column 2 and pressure column 3 is consistent with the inner diameter of sleeve 1;The bottom of pre-pressing column 2 is provided with a concave platform matched with the shape of the formed fire cap seat 4.

[0012] Sleeve 1 is gap matched with battery shell 6.

[0013] The outer diameter of pre-pressing column 2 and pressure column 3 is gap matched with the inner diameter of sleeve 1.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] (I), adopt the technical scheme of the utility model, the fire cap seat along the stress is balanced, the fire cap seat along the stress is smooth and the fire cap is fixed with the edge, the fire cap is not easy to be damaged, and the quality reliability is improved.

[0016] (II), the fire cap seat is not stressed, and the fire cap seat loosening or even falling off is completely eliminated.

[0017] (III), adopt the technical scheme of the utility model, the fire cap fixing process is simplified, the tooling does not need to be repeatedly installed, and the assembly efficiency is improved.

[0018] (IV), adopt the technical scheme of the utility model, the fixed fire cap tooling parameter setting pressure is reduced, the fire cap stress is reduced, and the hidden danger of fire cap damage is avoided.

[0019] (V), adopt the technical scheme of the utility model, the positioning sleeve of similar products only needs to be replaced, the center pre-pressing column and the pressing column can be universal, are widely applied, and the tooling design cost is saved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a sleeve type combined impact fire cap fixing tool structure schematic view;

[0021] Figure 2 It is a thermal battery shell with a fire cap seat schematic view;

[0022] Figure 3 It is a thermal battery fire cap fixing view. DETAILED DESCRIPTION

[0023] The utility model impact thermal battery fire cap fixing tool features that the tool can adjust the size of the outer sleeve according to the inner diameter and height of the thermal battery shell, and the outer sleeve material is not limited to carbon steel material, under the condition that the pressure parameter is unchanged, it is suitable for the fire cap fixing of all impact thermal batteries.

[0024] Referring to the attached Figure 1 : The sleeve type combined fire cap fixing tool for impact thermal battery is composed of a sleeve 1, a pre-pressing column 2 and a pressing column 3, the sleeve mainly plays a positioning role, the outer diameter is consistent with the inner diameter of the battery shell, and the height is slightly higher than the battery shell; the pre-pressing column pre-contracts the fire cap seat, the pressing column presses the fire cap, and the outer diameters of the pre-pressing column and the pressing column are consistent with the inner diameter size of the sleeve.

[0025] Referring to the attached Figure 2 , 3 ​The percussion cap holder 4 is installed into the bottom of the battery case 6 and welded securely. The impact percussion cap 5 is inserted into the welded percussion cap holder. The thermal battery percussion cap fixing sleeve 1 is inserted into the battery case and positioned. The percussion cap holder is pre-closed along the opening using the pre-load pin 2, and finally, the percussion cap is compressed using the pressure pin. Sleeve 1 is re-machined to accommodate different battery case inner diameters. The pre-load pin and pressure pin dimensions 2 remain unchanged, and the pre-close pressure and closing pressure parameters remain constant. This simplified process improves assembly efficiency and avoids the risk of incomplete percussion cap fixing and damage due to stress.

[0026] The utility model solves the problems in the prior art that the tooling easily generates unbalanced force acting on the edge of the percussion cap when subjected to force, the percussion cap seat is greatly deformed after closing, and the percussion cap is squeezed, loosened or shaken, thereby improving quality reliability.

[0027] The utility model solves the problem that when the percussion cap is fixed, only the edge of the percussion cap is stressed, and the periphery of the percussion cap seat is not under pressure, thereby completely preventing the percussion cap seat seat from falling off due to excessive pressure on the welding part.

[0028] The utility model adopts a sleeve-type percussion cap fixing tool, which is easy to operate, light and easy to hold, has good structural strength, and improves the percussion cap fixing efficiency.

[0029] The pre-retraction and flat-retraction pressure parameters of the primer seat of the utility model are relatively small, the primer is not easily damaged, and the primer seat is subjected to balanced force, so the primer is not damaged.

[0030] The utility model simplifies the flash hider closing tooling design of similar products. Similar products only need to replace the positioning sleeve. The center pre-compression column and the pressure column can be used interchangeably, which has a wide application and saves tooling design costs.

Claims

1. A sleeve-type combined percussion cap fixing tool, characterized by: The invention comprises a sleeve (1), a pre-compression column (2) and a compression column (3); the outer diameter of the sleeve (1) is consistent with the inner diameter of the battery shell (6) and is higher than the battery shell (6); the outer diameters of the pre-compression column (2) and the compression column (3) are consistent with the inner diameter of the sleeve (1); and the bottom of the pre-compression column (2) is provided with a concave platform that matches the shape of the primer seat (4) after forming.

2. The sleeve-type combined percussion cap fixing tool according to claim 1, characterized in that: The outer diameter of the sleeve (1) is clearance-matched with the inner diameter of the battery shell (6).

3. The sleeve-type combined percussion cap fixing tool according to claim 1, characterized in that: The outer diameters of the pre-compression column (2) and the compression column (3) are clearance-matched with the inner diameter of the sleeve (1).

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