A nozzle necking tool

Abstract

The utility model discloses a kind of nozzle closing-in tool, it is related to tool fixture manufacturing field, including tool support, lifting drive assembly is provided at tool support top, the output end of lifting drive assembly is fixedly connected with closing-in cone, closing-in cone appearance is set as cylindrical and bottom is provided with conical recess, closing-in cone below is provided with nozzle to be processed, closing-in cone bottom conical recess is adapted with nozzle upper end to be processed, closing-in cone side is provided with displacement controller, displacement controller can be contacted with closing-in cone lower end.Automatic operation is realized to the semi-automation of nozzle closing-in by adjusting the size of support beam and closing-in cone, the ability and experience requirement of operator to the device is low, closing-in quality is stable, uniformity is good, efficiency is high, and structure is simple, easy to manufacture, and production cost is low.

Description

Technical Field

[0001] This utility model relates to the field of tooling and fixture manufacturing, and in particular to a nozzle closing tooling. Background Technology

[0002] Coaxial nozzles are the main component of coaxial hollow sleeve injectors, and can be classified into direct-flow, centrifugal, and direct-flow-centrifugal types according to their structure. To achieve better atomization, nozzles are generally designed with a centrifugal structure, which involves machining tangential holes in the nozzle sidewall to allow the liquid to enter the nozzle channel tangentially. To ensure the feasibility of post-processing inspection and finishing, a removable plug is typically installed at one end of the nozzle. After the nozzle passes inspection, the plug is secured to prevent it from falling off during use. Currently, nozzle closure is mainly done manually, and the quality of the closure depends heavily on the operator's experience, resulting in poor product uniformity and low work efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a nozzle closing tool to solve the above-mentioned problems.

[0004] This utility model achieves the above objectives through the following technical solutions:

[0005] A nozzle closing fixture includes a fixture support, a lifting drive assembly at the top of the fixture support, a closing cone fixedly connected to the output end of the lifting drive assembly, the closing cone being cylindrical in shape and having a conical notch at the bottom, a nozzle to be processed being disposed below the closing cone, the conical notch at the bottom of the closing cone being adapted to the upper end of the nozzle to be processed, and a displacement controller being disposed on one side of the closing cone, the displacement controller being able to contact the lower end of the closing cone.

[0006] Preferably, the tooling bracket includes a base plate, on which two symmetrically arranged support beams are fixedly connected. A crossbeam is fixedly connected to the upper end of each support beam, and the displacement controller is fixedly connected to the support beams.

[0007] Preferably, the support beam is a telescopic support rod.

[0008] Preferably, the lifting drive component is a cylinder, which is fixedly connected to the crossbeam. The output end of the cylinder is connected to the concave cone by a pin, and the cylinder is electrically connected to the displacement controller.

[0009] Preferably, a positioning seat is installed on the base plate, and the nozzle to be processed is clamped at the upper end of the positioning seat.

[0010] Preferably, the constriction cone can be made of a wear-resistant metal with a hardness higher than that of the material used for the nozzle to be processed.

[0011] The beneficial effects are as follows: by adjusting the size of the support beam and the closing cone, nozzles of different sizes can be closed, realizing semi-automatic operation of nozzle closing. This device has low requirements for the operator's ability and experience, stable closing quality, good uniformity, high efficiency, simple structure, easy to manufacture, and low production cost.

[0012] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a perspective view of a nozzle closing fixture according to the present invention;

[0015] Figure 2 This is a front sectional view of the nozzle closing cone of the present invention.

[0016] Figure 3 This is a partial sectional view of the front side of the nozzle closing cone relative to the nozzle in the nozzle closing fixture described in this utility model.

[0017] The annotations in the attached figures are explained as follows:

[0018] 1. Base plate; 2. Positioning seat; 3. Support beam; 4. Nozzle to be processed; 5. Displacement controller; 6. Closing cone; 7. Crossbeam; 8. Cylinder. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] The present invention will be further described below with reference to the accompanying drawings:

[0022] like Figures 1-3As shown, a nozzle closing fixture includes a fixture support. A lifting drive assembly is provided on the top of the fixture support. A closing cone 6 is fixedly connected to the output end of the lifting drive assembly. The closing cone 6 is cylindrical in shape and has a conical notch at the bottom. A nozzle 4 to be processed is provided below the closing cone 6. The conical notch at the bottom of the closing cone 6 is adapted to the upper end of the nozzle 4 to be processed. A displacement controller 5 is provided on one side of the closing cone 6. The displacement controller 5 can contact the lower end of the closing cone 6. In use, the closing cone 6 contacts the upper end of the nozzle 4 to be processed under the action of the lifting drive assembly, and applies pressure to the metal at the upper end of the nozzle 4 to be processed by using the conical notch to deform it and shrink it inward, thereby fixing the nozzle plug. When the closing cone 6 contacts the displacement controller 5, the lifting drive assembly stops moving, so the closing cone 6 no longer forces the upper end of the nozzle 4 to be processed to deform.

[0023] The tooling support includes a base plate 1, on which two symmetrically arranged support beams 3 are fixedly connected. A crossbeam 7 is fixedly connected to the upper end of the support beams 3. The displacement controller 5 is fixedly connected to the support beams 3. The base plate 1, support beams 3, and crossbeam 7 form a stable portal frame structure, which is convenient for workers to operate.

[0024] The support beam 3 is a telescopic support rod. Telescopic support rods are a widely used existing technology. Their structure should meet the application requirements and can be selected in various forms. By adjusting the height of the support beam 3, it can be adapted to different models and sizes of nozzles 4 to be processed.

[0025] The lifting drive component is cylinder 8, which is existing technology. The specific structure will not be described here. Cylinder 8 can be selected according to application requirements. Cylinder 8 is fixedly connected to crossbeam 7 by bolts. The output end of cylinder 8 is connected to converging cone 6 by pins. The pin connection method makes it easy for the operator to replace converging cone 6 according to the model and size of nozzle 4 to be processed and the converging requirements. Cylinder 8 is electrically connected to displacement controller 5. When displacement controller 5 contacts converging cone 6, it generates an electrical signal, causing cylinder 8 to stop driving converging cone 6 to rise and fall.

[0026] A positioning seat 2 is installed on the base plate 1. The nozzle 4 to be processed is clamped on the upper end of the positioning seat 2. The positioning seat 2 is used to fix the positional relationship between the nozzle 4 to be processed and the concave cone 6, so that the nozzle 4 to be processed and the concave cone 6 are kept on the same axis.

[0027] The concave cone 6 can be made of a wear-resistant metal with a hardness higher than that of the material used for the nozzle 4 to be processed.

[0028] Working principle: First, the position of the displacement controller 5 is set according to the nozzle closing size. This position is the endpoint of the downward movement of the closing cone 6. Second, the nozzle 4 to be processed is installed on the positioning seat 2 and aligned with the closing cone 6. To improve alignment efficiency, auxiliary lines can be engraved on the base plate 1 to assist alignment. Then, compressed air is turned on to push the piston rod of the cylinder 8 downward. The piston rod drives the closing cone 6 downward. When the closing cone 6 contacts the displacement controller 5, the compressed air supply stops, and the piston rod of the cylinder 8 stops moving. During the downward movement of the closing cone 6, the inner wall of the closing cone 6 contacts the nozzle closing structure. The downward pressure causes the closing structure to deform and contract inward, thereby fixing the nozzle plug. For nozzles 4 of different sizes to be processed, the support beam 3 and the closing cone 6 can be adjusted for adaptation.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A nozzle closing fixture, comprising a fixture support, wherein a lifting drive assembly is provided on the top of the fixture support, characterized in that: The output end of the lifting drive assembly is fixedly connected to a concave cone (6). The concave cone (6) is cylindrical in shape and has a conical notch at the bottom. A nozzle (4) to be processed is provided below the concave cone (6). The conical notch at the bottom of the concave cone (6) is adapted to the upper end of the nozzle (4) to be processed. A displacement controller (5) is provided on one side of the concave cone (6). The displacement controller (5) can contact the lower end of the concave cone (6).

2. The nozzle closing fixture according to claim 1, characterized in that: The tooling bracket includes a base plate (1), on which two symmetrically arranged support beams (3) are fixedly connected. A crossbeam (7) is fixedly connected to the upper end of the support beams (3), and the displacement controller (5) is fixedly connected to the support beams (3).

3. The nozzle closing fixture according to claim 2, characterized in that: The support beam (3) is a telescopic support rod.

4. The nozzle closing fixture according to claim 2, characterized in that: The lifting drive assembly is a cylinder (8), which is fixedly connected to the crossbeam (7). The output end of the cylinder (8) is connected to the concave cone (6) by a pin. The cylinder (8) is electrically connected to the displacement controller (5).

5. The nozzle closing fixture according to claim 2, characterized in that: A positioning seat (2) is installed on the base plate (1), and the nozzle (4) to be processed is clamped at the upper end of the positioning seat (2).

6. The nozzle closing fixture according to claim 1, characterized in that: The concave cone (6) can be made of a metal that is wear-resistant and has a hardness higher than that of the material used for the nozzle (4) to be processed.

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