Auxiliary shaping tool for engine combustion chamber

Abstract

The utility model discloses an auxiliary shaping tool for an engine combustion chamber. The auxiliary shaping tool comprises a frame, a rotating shaft is rotationally arranged at the top of the frame, a driving piece used for driving the rotating shaft to rotate is arranged at the top of the rotating shaft, a lead screw is arranged at the bottom of the rotating shaft, and the tail end of the lead screw is in threaded connection with a pressing plate. Two limiting plates are symmetrically arranged in two side plates of the frame, and guide grooves which are used for embedding the end parts of the limiting plates, are formed in the longitudinal direction and are used for preventing the pressing plate from rotating are formed in the two sides of the pressing plate; the driving piece is rotated to drive the shaft and the lead screw to move, and the pressing plate moves in the axial direction of the lead screw under the action of the limiting plate and the guide groove. The shaping assistive device is simple in structure, low in cost and easy to manufacture and maintain; and adjustment is convenient, axial displacement of the pressing plate can be achieved through rotation of the wheel disc, then shaping of an engine combustion chamber of the ammunition propeller can be achieved, the displacement amount of the pressing plate is visualized through the stroke ruler, and the shaping precision is improved.

Description

Technical Field

[0001] This utility model relates to an engine combustion chamber shaping auxiliary tool, belonging to the technical field of machining equipment. Background Technology

[0002] As thin-walled tubular components, the combustion chamber of an ammunition propulsion engine often experiences out-of-roundness during processing. This requires equipment to compress the out-of-round areas of the combustion chamber, causing plastic deformation in that direction to slightly adjust the outer diameter of the combustion chamber. Traditional presses typically employ simple hydraulic, fully sliding joint, or hinged four-bar mechanisms during the shaping process. These methods suffer from inconvenient adjustment, large size, and high overall cost, making them less cost-effective for some companies. Utility Model Content

[0003] The purpose of this utility model is to provide an engine combustion chamber shaping auxiliary tool, which has a simple structure, is easy to operate, and has a low overall cost. It can drive the pressure plate to move axially by rotating the drive component, so as to shape the engine combustion chamber of the ammunition propulsion device.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] An engine combustion chamber shaping tool includes a frame, a rotating shaft rotatably mounted on the top of the frame, a driving component for rotating the shaft mounted on the top of the rotating shaft, a lead screw mounted on the bottom of the rotating shaft, and a pressure plate threaded to the end of the lead screw.

[0006] Two limiting plates are symmetrically arranged inside the two side plates of the frame, and guide grooves are provided on both sides of the pressure plate for the ends of the limiting plates to be inserted, which are longitudinally opened to prevent the pressure plate from rotating.

[0007] The rotating drive component drives the shaft and lead screw to follow the movement. Under the action of the limiting plate and guide groove, the pressure plate is displaced along the axial direction of the lead screw.

[0008] Preferably, the frame includes a base and a top plate arranged in parallel, and two side plates for connecting the base and the top plate, with a pivot rotatably mounted on the top plate.

[0009] Preferably, a fixing sleeve is provided on the top plate, and a bearing is embedded in the top of the fixing sleeve. The rotating shaft has an inverted U-shaped structure, and the small-diameter section of the rod passes through the bearing and the fixing sleeve, and is interference-fitted with the bearing.

[0010] Preferably, the drive component includes a wheel mounted on the top of the large-diameter section of the shaft, the wheel being connected to the top of the large-diameter section of the shaft via a screw and locked with a nut.

[0011] Preferably, a travel gauge for observing the vertical displacement of the pressure plate is also provided at the bottom of the fixed sleeve.

[0012] The beneficial effects of this utility model are as follows:

[0013] This shaping tool has a simple structure, low cost, and is easy to manufacture and maintain. It is also easy to adjust. The axial displacement of the pressure plate can be achieved by rotating the wheel, which can then be used to shape the combustion chamber of the ammunition propulsion engine. The displacement of the pressure plate is visualized by the stroke gauge, which improves the shaping accuracy. Attached Figure Description

[0014] Figure 1 This is a structural diagram of a plastic surgery aid;

[0015] The meanings of the main reference numerals in the figure are as follows:

[0016] 1. Base, 2. Top plate, 3. Side plate, 4. Fixing sleeve, 5. Bearing, 6. Rotating shaft, 7. Wheel, 8. Screw, 9. Nut, 10. Lead screw, 11. Pressure plate, 12. Limiting plate, 13. Guide groove, 14. Travel gauge. Detailed Implementation

[0017] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] This embodiment provides an engine combustion chamber shaping auxiliary tool, such as Figure 1 As shown, the equipment includes a frame, which includes a base 1 and a top plate 2 arranged in parallel, and two side plates 3 for connecting the base 1 and the top plate 2. The base 1 transfers the total load of the equipment to the ground, reducing the risk of local settlement and having a certain ability to resist overturning moment. The top plate 2, side plates 3 and base 1 form a load-bearing frame. The top plate 2 and the base 1 form symmetrical support, which improves the overall rigidity.

[0019] A fixing sleeve 4 is vertically installed on the top plate 2 of the frame, and a bearing 5 is embedded in the top of the fixing sleeve 4. At the same time, a rotating shaft 6 is rotatably installed on the top plate 2. The rotating shaft 6 has an inverted U-shaped structure, and a small diameter section of the rod passes through the bearing 5 and the fixing sleeve 4, and is interference-fitted with the bearing 5.

[0020] A wheel 7 is installed at the top of the large-diameter section of the rotating shaft 6. The wheel 7 is connected to the top of the large-diameter section of the rotating shaft 6 by a screw 8 and locked by a nut 9. A lead screw 10 is provided at the bottom of the rotating shaft 6. The end of the lead screw 10 is threadedly connected to a pressure plate 11 (a threaded hole is provided on the pressure plate 11, and the bottom end of the lead screw 10 is screwed into the threaded hole). At the same time, two limiting plates 12 are symmetrically arranged in the two side plates 3 of the frame, and guide grooves 13 are provided on both sides of the pressure plate 11, which are longitudinally opened for the end of the limiting plate 12 to be inserted to prevent the pressure plate 11 from rotating.

[0021] Rotating the wheel 7 drives the shaft and lead screw 10 to follow the movement. Simultaneously, under the action of the limiting plate 12 and the guide groove 13, the rotation of the shaft 6 is converted into the feeding motion of the pressure plate 11, so that the pressure plate 11 can only be displaced along the axial direction of the lead screw 10. Furthermore, in order to facilitate the understanding of the displacement of the pressure plate 11, a travel gauge 14 is also provided at the bottom of the fixed sleeve 4.

[0022] In use, place the workpiece to be shaped on the base 1 below the pressure plate 11, adjust the position of the workpiece to align it with the center of the pressure plate 11, and rotate the wheel 7 to drive the rotating shaft 6 to rotate. The lead screw 10 under the rotating shaft 6 is threaded into the pressure plate 11, and then, under the action of the limiting plate 12 and the guide groove 13, the pressure plate 11 moves downward along the axial direction. The pressure plate 11 applies pressure to the workpiece to perform the shaping operation. Depending on the required degree of shaping, adjust the number of rotations of the wheel 7 in conjunction with the limiting ruler. After shaping is completed, rotate the wheel 7 in the opposite direction to raise the pressure plate 11, and then remove the shaped workpiece.

[0023] The above description is only a preferred embodiment of this utility model patent. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model patent, and these improvements and modifications should also be considered within the scope of protection of this utility model patent.

Claims

1. An engine combustion chamber shaping assistive device, characterized by, The frame comprises a rotating shaft arranged at the top of the frame, a driving member arranged at the top of the rotating shaft for driving the rotating shaft, a screw rod arranged at the bottom of the rotating shaft, and a pressing plate threadedly connected to the end of the screw rod; Two limiting plates are symmetrically arranged in the two side plates of the frame, and a guide slot is longitudinally arranged at the two sides of the pressing plate for embedding the end of the limiting plate and preventing the pressing plate from rotating; The rotating driving member drives the rotating shaft and the screw rod to move, and the pressing plate moves along the screw rod under the action of the limiting plate and the guide slot.

2. The engine combustion chamber shaping assist of claim 1, wherein, The frame comprises a base plate and a top plate arranged in parallel, and two side plates for connecting the base plate and the top plate, and the rotating shaft is arranged on the top plate.

3. The engine combustion chamber reshaping assist of claim 2, wherein, A fixing sleeve is arranged on the top plate, a bearing is embedded at the top of the fixing sleeve, the rotating shaft has an inverted chevron structure, the small-diameter section of the rod body passes through the bearing and the fixing sleeve, and is connected to the bearing in an interference fit.

4. The engine combustion chamber reshaping assist of claim 3, wherein, The driving member comprises a disc wheel mounted on the top end of the large-diameter section of the rotating shaft, the disc wheel is connected to the top end of the large-diameter section of the rotating shaft through a screw rod, and is locked through a nut.

5. The engine combustion chamber reshaping assist of claim 3, wherein, A travel scale is further arranged at the bottom of the fixing sleeve for observing the up-down displacement of the pressing plate.

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