Quick assembly tool structure for recoil assembly

Abstract

The application discloses a kind of complex progress subassembly quick assembly tool structure, including base structure, power structure, push rod structure, positioning structure, riveting structure and safety protection structure.The base structure is cuboid, its surface is used to install power structure, positioning structure, safety protection structure;The power structure is composed of cylinder base, double-shaft cylinder, hand valve, gas pipe joint;The push rod structure is composed of push rod connecting seat and push rod;The positioning structure includes small spring positioning block and big spring positioning block;The riveting structure is composed of riveting base, riveting mobile seat and guide shaft;Safety protection structure is composed of vertical quick clamp seat and guard plate.The tool structure uses high-pressure air as power source, compresses complex progress spring, fills glue, twists into complex progress plug, and the front end of riveting complex progress spring guide rod is concentrated together, using the mode of 3 sets of complex progress subassembly simultaneous assembly, improves the efficiency of additional allocation, reduces operator labor intensity, and is convenient for batch assembly.

Description

Technical Field

[0001] This invention relates to the field of firearm assembly technology, and in particular to a quick assembly tooling structure for recoil components. Background Technology

[0002] The recoil assembly consists of large and small recoil springs, a recoil spring guide rod, a recoil sleeve, a recoil retaining ring, and a recoil plug. It provides cushioning and recoil for the product, and also provides power for the automatic forward movement of the product. The structural features of this recoil assembly are that the small recoil spring is fitted onto the recoil spring guide rod, and the recoil sleeve is fitted onto the small recoil spring; one end of the recoil spring guide rod is threaded, and the small recoil spring is limited by a recoil plug connected to the threaded part of the guide rod; the other end of the guide rod adopts a T-shaped design, and the large recoil spring is limited by a recoil washer.

[0003] Existing assembly technology (see application number: 202210560793.7, "A Method for Assembling a Pistol's Serial Double Recoil Spring Assembly") involves manual assembly. A bolt-action manual clamp is used to manually compress the large and small recoil springs. Glue is then injected into the threaded holes of the recoil spring guide rods, and recoil plugs are screwed in. Finally, a riveting device is used to rivet the front end of the recoil spring guide rods to meet product technical requirements. This assembly technology is labor-intensive, inefficient, and unsuitable for mass production. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a quick assembly tooling structure for reciprocating components, which is simple in structure, low in cost, easy to use, and provides accurate, reliable and efficient assembly.

[0005] The objective of this invention is achieved as follows: A quick assembly fixture structure for reciprocating components includes a base (1), on which a power structure and a positioning structure are mounted. The power structure is connected to a push rod structure, and the power structure is used to drive the push rod structure to extend and retract. The positioning structure includes a large spring positioning block (7), a small spring positioning block (6), and a spring limiting seat (12) sequentially installed on the base (1); the large spring positioning block (7) is adjacent to the push rod structure, and a U-shaped positioning surface (701) is provided on the upper surface of the large spring positioning block (7). The U-shaped positioning surface (701) is used to contact the outer surface of the recoil sleeve and the large recoil spring, and to radially position the recoil sleeve and the large recoil spring; the upper surface of the small spring positioning block (6) is provided with a stepped U-shaped groove. It has a U-shaped positioning surface (601), which is used to contact the outer surface of the small recoil spring and to radially position the small recoil spring. The stepped surface of the stepped U-shaped groove is used to axially position the large recoil spring and the recoil sleeve. The upper end of the spring limiting seat (12) is provided with a U-groove, which is used to axially limit the small recoil spring. The push rod structure is used to apply axial force to the large end of the recoil spring guide rod and to make the front end of the recoil spring guide rod extend out of the U-groove on the spring limiting seat (12). The front end of the recoil spring guide rod is used for riveting.

[0006] Preferably, the power structure includes a cylinder seat (2) and a dual-shaft cylinder (3), with the cylinder seat (2) mounted on the base (1) and the dual-shaft cylinder (3) mounted on the cylinder seat (2).

[0007] Preferably, the push rod structure includes a push rod connecting seat (4) and a push rod (5). The push rod connecting seat (4) is connected to the piston rod of the dual-shaft cylinder (3), and the push rod (5) is mounted on the push rod connecting seat (4).

[0008] Preferably, a riveting structure is also installed on the base (1), which is used to rivet the front end of the recoil spring guide rod.

[0009] Preferably, the riveting structure includes a riveting base (10) and a riveting movable seat (11). The riveting base (10) is fixed on the base (1), and the moving direction of the riveting movable seat (11) is perpendicular to the push rod structure. The riveting movable seat (11) is slidably fitted on the riveting base (10). An arc-shaped groove is provided on the top of the riveting movable seat (11), which is used to guide the contact with the outer arc surface of the reciprocating plug. Of course, the riveting structure can also be omitted, and the riveting can be completed by an external riveting device. This invention serves as an auxiliary positioning tool.

[0010] Due to the adoption of the above technical solution, the present invention has the following beneficial effects: With its simple structure, low cost, ease of use, precise, reliable, and efficient assembly, it can be widely applied to other similar structural assemblies. Attached Figure Description

[0011] Figure 1 Front view of the invention; Figure 2 Top view of the invention; Figure 3 Left view of the invention; Figure 4 View of the large spring positioning block of the present invention; Figure 5 View of the small spring positioning block of the present invention; Figure 6 View of the press-fit movable seat of the present invention.

[0012] Figure Labels In the attached diagram, 1-base; 2-cylinder seat; 3-dual-shaft cylinder; 4-push rod connecting seat; 5-push rod; 6-small spring positioning block; 601-U-shaped positioning surface one; 7-large spring positioning block; 701-U-shaped positioning surface two; 8-hand valve (with air pipe connector); 9-vertical quick-press seat; 10-pressing base; 11-pressing moving seat; 1101-ovalve guide groove; 1102-moving seat limiting surface; 12-spring limiting seat. Detailed Implementation

[0013] The implementation of the present invention will be further described in detail below with reference to the accompanying drawings.

[0014] A quick assembly fixture structure for a reciprocating component includes a base (1), on which a power structure and a positioning structure are mounted. The power structure is connected to a push rod structure, and the power structure is used to drive the push rod structure to extend and retract. The positioning structure includes a large spring positioning block (7), a small spring positioning block (6), and a spring limiting seat (12) sequentially mounted on the base (1). The large spring positioning block (7) is adjacent to the push rod structure. A U-shaped positioning surface (701) is provided on the upper surface of the large spring positioning block (7). The U-shaped positioning surface (701) is used to contact the outer surface of the reciprocating sleeve and the large reciprocating spring, and to position the reciprocating sleeve and the large reciprocating spring. The spring is radially positioned; the upper surface of the small spring positioning block (6) is provided with a stepped U-shaped groove, the stepped U-shaped groove has a U-shaped positioning surface (601), the U-shaped positioning surface (601) is used to contact the outer surface of the small recoil spring and to radially position the small recoil spring, the stepped surface of the stepped U-shaped groove is used to axially position the large recoil spring and the recoil sleeve; the upper end of the spring limiting seat (12) is provided with a U-shaped groove, the spring limiting seat (12) is used to axially limit the small recoil spring, the push rod structure is used to apply axial force to the large end of the recoil spring guide rod and to make the front end of the recoil spring guide rod extend out of the U-shaped groove on the spring limiting seat (12). The front end of the recoil spring guide rod is used for riveting.

[0015] The power structure includes a cylinder seat (2) and a dual-shaft cylinder (3). The cylinder seat (2) is mounted on the base (1), and the dual-shaft cylinder (3) is mounted on the cylinder seat (2). The push rod structure includes a push rod connecting seat (4) and a push rod (5). The push rod connecting seat (4) is connected to the piston rod of the dual-shaft cylinder (3), and the push rod (5) is mounted on the push rod connecting seat (4).

[0016] A riveting structure is also installed on the base (1), which is used to rivet the front end of the recoil spring guide rod. The riveting structure includes a riveting base (10) and a riveting moving seat (11). The riveting base (10) is fixed on the base (1), and the moving direction of the riveting moving seat (11) is perpendicular to the push rod structure. The riveting moving seat (11) is slidably fitted on the riveting base (10). An arc groove is provided on the top of the riveting moving seat (11). The arc groove contacts the outer arc surface of the recoil plug and plays a guiding role when assembling the recoil plug. The riveting structure is used in conjunction with a riveting tool to achieve riveting. The riveting tool is existing technology. For example, pliers can also be used directly, which will not be described in detail here.

[0017] In this embodiment, a flat surface is provided on the top of the riveting moving seat (11), which contacts the riveting tool and is used to limit the riveting tool; the riveting tool (e.g., closing pliers) is provided with an arc groove that contacts the outer arc surface of the recoil spring guide rod, and the radial force is applied by the riveting tool to achieve complete riveting of the threaded connection between the recoil spring guide rod and the recoil plug.

[0018] In this embodiment, a guide shaft is provided above the riveting base (10), and the guide shaft is fixed on the small spring positioning block (6); the riveting moving seat (11) is provided with an oval guide groove (1101); the guide shaft and the oval guide groove (1101) on the riveting moving seat (11) form a sliding fit, thereby providing guidance for the movement of the riveting moving seat (11). The riveting moving seat (11) is provided with a boss, and the boss has a moving seat limiting surface (1102). In the riveting state, the moving seat limiting surface (1102) contacts and limits the riveting base (10).

[0019] The present invention also includes a safety protection structure, which includes a vertical quick-pressing seat (9). The vertical quick-pressing seat (9) is located directly above the small spring positioning block (6) and the large spring positioning block (7). The vertical quick-pressing seat (9) is used to seal the first U-shaped positioning surface (601) and the second U-shaped positioning surface (701). The vertical quick-pressing seat (9) is a lifting mechanism that can both protect and allow for displacement.

[0020] Specifically: A quick assembly fixture structure for reciprocating components is disclosed. This fixture structure uses high-pressure air as a power source to compress the large and small reciprocating springs, inject adhesive, screw in the reciprocating plugs, and rivet the front end of the reciprocating spring guide rod in a centralized manner. It employs a simultaneous assembly of three sets of reciprocating components, improving assembly efficiency, reducing operator workload, and facilitating batch assembly. The invention includes a base structure, a power structure, a push rod structure, a positioning structure, a riveting structure, and a safety protection structure. The base structure is cuboid, and its surface is used to install the power structure, positioning structure, and safety protection structure. The power structure consists of a cylinder base, a dual-shaft cylinder, a hand-operated valve, and an air pipe connector. The push rod structure consists of a push rod connecting seat and a push rod. The positioning structure consists of a small spring positioning block and a large spring positioning block. The riveting structure consists of a riveting base, a riveting moving seat, and a guide shaft. The safety protection structure consists of a vertical quick-clamp seat and a protective plate.

[0021] The base has pin holes and threaded holes on its upper surface and stepped through holes on its bottom surface for fixing the power structure, positioning structure, and safety protection structure. The cylinder seat has threaded holes and pin holes for mounting a dual-axis cylinder; the front end face of the dual-axis cylinder has threaded holes for mounting a push rod structure. The front end of the push rod connecting seat has threaded holes for mounting a push rod. The upper surface of the large spring positioning block also has a second U-shaped positioning surface for positioning the recoil sleeve and the large recoil spring. The front end of the small spring positioning block has pin holes and threaded holes for mounting a spring limit seat and a press-fit base; its upper surface has a stepped U-shaped groove and a first U-shaped positioning surface for positioning the large and small recoil springs. The press-fit moving seat has an oval guide groove for guiding the press-fit moving seat to achieve translation; its top has an arc-shaped groove for guiding and positioning the press-fit tool. The protective plate has round holes for positioning the press head on the vertical quick-press seat.

[0022] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, this invention is a quick assembly fixture structure for a reciprocating component. It includes a base, cylinder seat, dual-axis cylinder, push rod connecting seat, push rod, small spring positioning block, U-shaped positioning surface 601, large spring positioning surface block, U-shaped positioning surface 701, hand valve, air pipe connector, vertical quick-press seat, riveting base, riveting moving seat, oval guide groove 1101, moving seat limiting surface 1102, and spring limiting seat.

[0023] How to use: The large spring positioning block is equipped with a U-shaped positioning surface 701. The large recoil spring is placed on the recoil sleeve and inserted, with its outer surface in contact with the U-shaped positioning surface 701. The small spring positioning block is equipped with a stepped U-shaped positioning surface 601. The small recoil spring is first placed into the recoil sleeve and then placed into the small spring positioning block as a whole, with its outer surface in contact with the U-shaped positioning surface 601. The recoil spring guide rod is inserted into the small recoil spring through the guide hole on the recoil sleeve. The vertical quick-pressing seat is placed above the large and small spring positioning blocks to prevent parts from flying out during the pressing process.

[0024] Open the manual valve, start the dual-axis cylinder, drive the push rod to push the recoil spring guide rod, and compress the large and small recoil springs; after the small recoil spring contacts the spring limit seat, use a tool to screw the glued recoil plug into the recoil spring guide rod; the riveting moving seat is equipped with an oval guide groove 1101 and a moving seat limit surface 1102. Slide the riveting moving seat so that its moving seat limit surface 1102 contacts the riveting base. Use a riveting tool to rivet the threaded connection between the recoil spring guide rod and the recoil plug through the arc groove and upper plane of the riveting moving seat head; slide the riveting moving seat in the opposite direction so that its moving seat limit surface 1102 separates from the riveting base, close the manual valve, the dual-axis cylinder drives the push rod to return to its original position, remove the vertical quick-pressing seat, and take out the workpiece.

[0025] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of the present invention.

Claims

1. A quick assembly fixture structure for reciprocating components, characterized in that: Includes a base (1), on which a power structure and a positioning structure are installed. The power structure is connected to a push rod structure, and the power structure is used to drive the push rod structure to extend and retract. The positioning structure includes a large spring positioning block (7), a small spring positioning block (6), and a spring limiting seat (12) sequentially installed on the base (1); the large spring positioning block (7) is adjacent to the push rod structure, and a U-shaped positioning surface (701) is provided on the upper surface of the large spring positioning block (7). The U-shaped positioning surface (701) is used to contact the outer surface of the recoil sleeve and the large recoil spring, and to radially position the recoil sleeve and the large recoil spring; the upper surface of the small spring positioning block (6) is provided with a stepped U-shaped groove. It has a U-shaped positioning surface (601), which is used to contact the outer surface of the small recoil spring and to radially position the small recoil spring. The stepped surface of the stepped U-shaped groove is used to axially position the large recoil spring and the recoil sleeve. The upper end of the spring limiting seat (12) is provided with a U-groove, which is used to axially limit the small recoil spring. The push rod structure is used to apply axial force to the large end of the recoil spring guide rod and to make the front end of the recoil spring guide rod extend out of the U-groove on the spring limiting seat (12).

2. The rapid assembly fixture structure for reciprocating components according to claim 1, characterized in that, The power structure includes a cylinder seat (2) and a dual-shaft cylinder (3). The cylinder seat (2) is mounted on the base (1), and the dual-shaft cylinder (3) is mounted on the cylinder seat (2).

3. A rapid assembly fixture structure for reciprocating components according to claim 2, characterized in that, The push rod structure includes a push rod connecting seat (4) and a push rod (5). The push rod connecting seat (4) is connected to the piston rod of the dual-shaft cylinder (3), and the push rod (5) is mounted on the push rod connecting seat (4).

4. The rapid assembly fixture structure for reciprocating components according to claim 1, characterized in that, A riveting structure is also installed on the base (1), which is used to rivet the front end of the recoil spring guide rod.

5. A rapid assembly fixture structure for reciprocating components according to claim 4, characterized in that, The press-fit structure includes a press-fit base (10) and a press-fit moving seat (11). The press-fit base (10) is fixed on the base (1). The moving direction of the press-fit moving seat (11) is perpendicular to the push rod structure. The press-fit moving seat (11) is slidably fitted on the press-fit base (10). The top of the press-fit moving seat (11) is provided with an arc groove, which is used to guide the contact with the outer arc surface of the re-entry plug.

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