Simple tool for rapidly and accurately assembling cutter

Abstract

The utility model belongs to the field of initiating explosive device assembly tools, and discloses a simple tool for rapidly and accurately assembling a cutter. The tool comprises a first upper die, a second upper die and a lower die. Wherein the first upper die, the second upper die and the lower die are assembled together through a connecting device; the cutter comprises an exploder connector and a body. Sheet-shaped supporting lugs are arranged on the side wall of the body. The cutter is used for pressing and releasing in the fields of spaceflight structure mechanisms and space structure mechanisms. According to the assembly tool, a simple mechanical structure is completely adopted, the requirement for parallelism in the cutter assembly process is met in a plane attaching mode, the tool is simple in structure, low in manufacturing cost and easy and convenient to operate, the requirement for professional operating skills of workers is low, single-person operation can be achieved, the number of operating workers is reduced, and production efficiency is improved. And the tool cost and the labor cost are effectively reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of assembling tooling for explosive devices, and in particular relates to a simple tooling for quickly and accurately assembling a cutter. Background Art

[0002] The cutter is an aerospace pyrotechnic device used for compression and release in the field of aerospace structures and space structures. Figure 1 As shown, the cutter parts include a detonator joint 5, a body 1 and a gasket 2; the detonator joint 5 includes a joint 4 and a spring 3; a hole 8 is provided on the joint 4; a support ear 7 is provided on the side wall of the body 1, and a hollow hole 6 is provided in the body 1.

[0003] After the cutter is assembled, the plane of the detonator joint is required to be perpendicular to the axis of the locking screw hole. Currently, there is no special assembly tooling for this type of cutter. The assembly of the cutter mainly relies on manual operation by the operator. The assembly process requires the cooperation of multiple people, and the assembly accuracy depends on the operator's proficiency.

[0004] Therefore, shortcomings such as low assembly efficiency and poor assembly accuracy have seriously affected the production efficiency of this cutter, and there is an urgent need to develop a simple tooling for the quick and accurate assembly of the cutter. Utility Model Content

[0005] The utility model aims to provide a special simple assembly tool, which has a simple structure, low cost, and simple operation, and can significantly improve the assembly efficiency and precision of the cutter.

[0006] The utility model adopts the following technical solutions:

[0007] A simple tool for fast and accurate assembly of a cutter, comprising a first upper die 16, a second upper die 19 and a lower die 10; wherein the first upper die 16, the second upper die 19 and the lower die 10 are assembled together through a connecting device;

[0008] The cutter comprises a detonator joint 5 and a body 1; a support ear 7 is provided on the side wall of the body 1;

[0009] The lower die 10 is a two-stage stepped plane, and a sunken groove 12 is provided on the lower plane of the lower die 10, and the sunken groove 12 matches the lug 7 to realize the clamping and positioning of the cutter at different positions of the die; a positioning groove 24 is provided on the high plane of the lower die 10, and the positioning groove 24 is semicircular and matches the body 1 of the cutter to prevent the cutter from axial movement;

[0010] The first upper mold 16 and the second upper mold 19 are symmetrical structures and are respectively fixed on both sides of the sunken groove 12; the first upper mold 16 and the second upper mold 19 are concave-shaped, and after being fixed, an empty groove is formed between the lower plane of the lower mold 10 for fixing the support ear 7.

[0011] Preferably, through holes are provided at both ends of the ear 7, and a first fixing bolt 18 and a second fixing bolt 21 are provided on the first upper mold 16 and the second upper mold 19; the first fixing bolt 18 passes through the through hole of the ear 7, and the second fixing bolt 21 is located on the outer side of the plate of the ear 7 to fix the ear 7.

[0012] Preferably, the first upper mold 16, the second upper mold 19, and the lower mold 10 are assembled together through a first connecting device 17, a second connecting device 20, and a fifth connecting device 22; the first connecting device 17 and the fifth connecting device 22 are connected to the first fixing hole 14 and the fifth fixing hole 11 on the lower mold 10 through the through hole of the first upper mold 16; the second connecting device 20 is connected to the second fixing hole 15 on the lower mold 10 through the through hole of the second upper mold 19.

[0013] Furthermore, the first upper mold 16 and the second upper mold 19 are knife-shaped concave bodies; two first connecting devices 17 are provided, located at the top of the knife-shaped head of the first upper mold 16; there is only one fifth connecting device 22, located at the handle of the first upper mold 16; the second connecting device 20 is symmetrically arranged with the first connecting device 17 and the fifth connecting device 22, and there are three in total.

[0014] Further, the first connecting device 17 , the second connecting device 20 and the fifth connecting device 22 are screw structures, which match the first fixing hole 14 , the second fixing hole 15 and the fifth fixing hole 11 .

[0015] Preferably, a second mold fixing hole 23 and a third mold fixing hole 25 are symmetrically arranged on the high plane of the lower mold 10 on both sides of the positioning groove 24 for fixing the mold to the workbench.

[0016] Preferably, a connecting platform is provided above a corner of the low plane of the lower mold 10, and the connecting platform is provided with a positioning plane C parallel to the sunken groove 12, and the positioning plane C is provided with a first mold fixing hole 13 for fixing the mold to the workbench.

[0017] Furthermore, the parallelism between the positioning plane C and the plane of the sunken groove 12 is no more than 0.15 mm.

[0018] Furthermore, the side surface of the connecting platform is an inclined structure, which matches the shape of the detonator connector 5 of the cutter.

[0019] Preferably, the middle parts of the top ends of the first upper mold 16 and the second upper mold 19 adopt a guide bevel structure.

[0020] Beneficial effects of the utility model:

[0021] (1) The assembly tool adopts a simple mechanical structure and realizes the parallelism requirement of the cutter assembly process by plane fitting. The tool has a simple structure, low manufacturing cost, easy operation and low professional operation skill requirements for workers;

[0022] (2) The assembly tool does not require any other special auxiliary tools. The operation can be completed using a conventional hexagonal wrench, adjustable wrench or open-end wrench. It can be operated by one person, reducing the number of operators and effectively reducing tool costs and labor costs.

[0023] (3) The fixing and release of the cutter in the tooling only requires a set of fixing bolts, which is easy and quick to operate and greatly improves assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the composition and assembly relationship of the cutter described in the background technology.

[0025] Figure 2 It is a schematic diagram of the tooling structure in Example 1 of the utility model.

[0026] Figure 3 This is a schematic diagram of the assembly process of the tooling and the cutter in Embodiment 1 of the present utility model;

[0027] 3-(a) Before assembly; 3-(b) During assembly; 3-(c) After assembly. DETAILED DESCRIPTION

[0028] The utility model is further described below in conjunction with the accompanying drawings.

[0029] Example 1

[0030] like Figure 2 , Figure 3As shown, the present embodiment provides a simple tooling for quick and accurate assembly of a cutter, comprising a first upper die 16, a second upper die 19 and a lower die 10; the first upper die 16, the second upper die 19 and the lower die 10 are assembled together by a first connecting device 17, a second connecting device 20 and a fifth connecting device 22; the first connecting device 17 and the fifth connecting device 22 are connected to the first fixing hole 14 and the fifth fixing hole 11 on the lower die 10 through the through hole of the first upper die 16; the second connecting device 20 is connected to the fifth fixing hole 15 on the lower die 10 through the through hole of the second upper die 19; the first upper die 16 and the second upper die 19 are knife-shaped inverted concave bodies; two first connecting devices 17 are provided, located at the top of the knife-shaped head of the first upper die 16; there is a total of one fifth connecting device 22, which is located at the handle of the first upper die 16; the second connecting device 2 is symmetrically arranged with the first connecting device 17 and the fifth connecting device 22, and there are three in total; the first connecting device 17, the second connecting device 20 and the fifth connecting device 22 are screw structures.

[0031] Cutter Figure 1 As shown, it includes a detonator joint 5 and a body 1; a sheet-shaped support ear 7 is provided on the side wall of the body 1;

[0032] The lower die 10 is a two-stage stepped plane, and a sunken groove 12 is provided on the lower plane of the lower die 10, and the sunken groove 12 matches the lug 7 to realize the clamping and positioning of the cutter at different positions of the die; a positioning groove 24 is provided on the high plane of the lower die 10, and the positioning groove 24 is semicircular and matches the body 1 of the cutter to prevent the cutter from axial movement;

[0033] Through holes are provided at both ends of the support ear 7, and a first fixing bolt 18 and a second fixing bolt 21 are provided on the first upper mold 16 and the second upper mold 19; the first fixing bolt 18 passes through the through hole of the support ear 7, and the second fixing bolt 21 is located on the outer side of the plate of the support ear 7 to fix the support ear 7.

[0034] The first upper mold 16 and the second upper mold 19 are symmetrical structures and are respectively fixed on both sides of the sunken groove 12; the first upper mold 16 and the second upper mold 19 are concave-shaped, and after being fixed, an empty groove is formed between the lower plane of the lower mold 10 for fixing the support ear 7.

[0035] The second mold fixing hole 23 and the third mold fixing hole 25 are symmetrically arranged on the high plane of the lower mold 10 on both sides of the positioning groove 24, which are used to fix the mold to the workbench; a connecting platform is arranged above a corner of the low plane of the lower mold 10, and the connecting platform is provided with a positioning plane C parallel to the sunken groove 12, and the positioning plane C is provided with a first mold fixing hole 13, which is used to fix the mold to the workbench. The parallelism between the positioning plane C and the plane of the sunken groove 12 is not greater than 0.15mm. The side surface of the connecting platform is a bevel structure, which matches the shape of the detonator joint 5 of the cutter.

[0036] The working process of this utility model:

[0037] Assemble the first upper mold 16, the second upper mold 19, and the lower mold 10 of the assembly mold together through the first connecting device 17, the second connecting device 20, and the fifth connecting device 22;

[0038] like Figure 1 The cutter parts shown are a detonator connector 5, a body 1 and a gasket 2, each one according to Figure 3 - (a) shows that the cutter body 1 is placed in a predetermined position and pushed forward so that the ear 7 of the cutter body 1 is inserted into the sunken groove 12 of the lower die 10;

[0039] Place the cutter body 1 in Figure 3 - Push in the opposite direction of the arrow in (b) to the upper limit position, and tighten the fixing bolt 18 to fix the cutter body 1 in the assembly tool;

[0040] Install the washer 2 into the cutter body 1 and screw it into the detonator connector 5. Use a wrench to screw the detonator connector 5 into the last circle, leaving a 25-45° angle with the plane C. Figure 3 - (b);

[0041] Loosen the first fixing bolt 18 and move the cutter pre-assembled body along Figure 3 - (b) Move to the lower limit position in the direction of the arrow, and tighten the second tightening bolt 21 to tighten the detonator joint 5 so that the plane A of the end face of the detonator joint 5 fits with the plane C in the lower mold;

[0042] The second fixing bolt 21 is loosened to remove the cutter assembly from the mold.

Claims

1. A simple tool for quick and accurate assembly of a cutter, characterized in that: It comprises a first upper mold (16), a second upper mold (19) and a lower mold (10); wherein the first upper mold (16), the second upper mold (19) and the lower mold (10) are assembled together through a connecting device; The cutter comprises a detonator joint (5) and a body (1); a support ear (7) is provided on the side wall of the body (1); The lower die (10) is a two-stage stepped plane, and a sunken groove (12) is provided on the lower plane of the lower die (10), and the sunken groove (12) matches the lug (7) to realize the clamping and positioning of the cutter at different positions of the die; a positioning groove (24) is provided on the upper plane of the lower die (10), and the positioning groove (24) is semicircular and matches the body (1) of the cutter to prevent the cutter from axial movement; The first upper mold (16) and the second upper mold (19) are symmetrical structures and are respectively fixed on the two sides of the sunken groove (12); the first upper mold (16) and the second upper mold (19) are concave-shaped and form a hollow groove between the lower plane of the lower mold (10) after being fixed, which is used to fix the support ear (7).

2. The simple tool for quick and accurate assembly of the cutter according to claim 1, characterized in that: Through holes are provided at both ends of the support ear (7); a first fixing bolt (18) and a second fixing bolt (21) are provided on the first upper mold (16) and the second upper mold (19); the first fixing bolt (18) passes through the through hole of the support ear (7); the second fixing bolt (21) is located on the outer side of the plate of the support ear (7) to fix the support ear (7).

3. The simple tool for quick and accurate assembly of the cutter according to claim 1, characterized in that: The first upper mold (16), the second upper mold (19), and the lower mold (10) are assembled together through a first connecting device (17), a second connecting device (20), and a fifth connecting device (22); the first connecting device (17) and the fifth connecting device (22) are connected to the first fixing hole (14) and the fifth fixing hole (11) on the lower mold (10) through the through hole of the first upper mold (16); and the second connecting device (20) is connected to the second fixing hole (15) on the lower mold (10) through the through hole of the second upper mold (19).

4. The simple tool for quick and accurate assembly of the cutter according to claim 3, characterized in that: The first upper mold (16) and the second upper mold (19) are knife-shaped concave bodies; two first connecting devices (17) are provided, and are located at the top of the knife-shaped head of the first upper mold (16); there is a fifth connecting device (22) and it is located at the handle of the first upper mold (16); the second connecting device (20) is symmetrically arranged with the first connecting device (17) and the fifth connecting device (22), and there are three second connecting devices in total.

5. The simple tool for quick and accurate assembly of the cutter according to claim 4, characterized in that: The first connecting device (17), the second connecting device (20) and the fifth connecting device (22) are screw structures.

6. The simple tool for quick and accurate assembly of a cutter according to claim 1, characterized in that: A second mold fixing hole (23) and a third mold fixing hole (25) are symmetrically arranged on the high plane of the lower mold (10) on both sides of the positioning groove (24) for fixing the mold to the workbench.

7. The simple tool for quick and accurate assembly of a cutter according to claim 1, characterized in that: A connecting platform is provided above a corner of the low plane of the lower mold (10), and the connecting platform is provided with a positioning plane C parallel to the sunken groove (12), and the positioning plane C is provided with a first mold fixing hole (13) for fixing the mold to the workbench.

8. The simple tool for quick and accurate assembly of a cutter according to claim 7, characterized in that: The parallelism between the positioning plane C and the plane of the sunken groove (12) is no greater than 0.15 mm.

9. The simple tool for quick and accurate assembly of a cutter according to claim 8, characterized in that: The side surface of the connecting platform is an inclined structure, which matches the shape of the detonator connector (5) of the cutter.

10. The simple tool for quick and accurate assembly of a cutter according to claim 1, characterized in that: The middle parts of the top ends of the first upper mold (16) and the second upper mold (19) adopt a guide bevel structure.

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