Liquid rocket engine frame butt joint hole machining device

Abstract

The utility model discloses a liquid rocket engine frame butt joint hole machining device, and particularly relates to the technical field of hole aligning devices. When machining of a liquid rocket engine frame butt joint hole is started, a boring cutter makes contact with a hole opening point of the butt joint hole, a guide frame makes contact with the butt joint hole in advance, and a rubber pad in the guide frame makes close contact with the wall of the butt joint hole; the guide frame makes contact with the butt joint hole wall through the rubber pad, errors caused by vibration or deviation of the boring cutter can be effectively prevented, the guide frame is aligned with the axis of the boring cutter, the stability of the boring cutter in the machining process is guaranteed, the device has high adaptability and high precision, working parameters can be adjusted according to actual requirements, and the service life of the boring cutter is prolonged. The device is simple in structure, stable in the machining process and capable of remarkably reducing errors, abrasion is effectively reduced through combination of a stabilizing assembly and a hydraulic system, the service life is prolonged, the maintenance cost is reduced, the hole machining task is efficiently completed through an advanced stabilizing and adjusting mechanism, and the device has the long-term use stability.

Description

Technical Field

[0001] The utility model relates to the technical field of hole alignment devices, and particularly relates to a processing device for butt holes of a liquid rocket engine frame. Background Technique

[0002] The frame of a liquid rocket engine usually requires a hole alignment device. This is because the frame needs precise butt holes to ensure the correct installation and alignment of the engine components and other parts. These hole positions must meet strict dimensional and positional requirements to ensure the structural stability and the normal operation of the engine. The hole alignment device can provide high-precision hole processing to ensure the accurate alignment of components and the reliability of the final assembly.

[0003] Under the prior art, for example, a Chinese patent with the publication number CN216028223U discloses a hole processing device for precise alignment, including a drilling device and a base. The drilling device is installed at the top of one end of the base. A supporting circular seat is vertically installed at the end of the base away from the drilling device. A T-shaped frame is vertically connected to the top of the supporting circular seat. A circular hole is formed inside the T-shaped frame. Oppositely arranged supporting frames are symmetrically installed at the hollow part inside the circular hole. The two ends of the two supporting frames pass through the outside of the circular hole and extend downward. A bidirectional electric telescopic rod is commonly installed between the two supporting frames. The rear end surface of the T-shaped frame is connected to the bidirectional electric telescopic rod through a support member. Stabilizing mechanisms are arranged on both sides of one end of the outer wall of the T-shaped frame close to the drilling device.

[0004] During the processing of butt holes by the above device, the input end of the boring tool is subjected to the greatest force. When a relatively large force is applied to one end of the drilling device, it will cause extremely slight vibrations of the overall device, thereby affecting the accuracy of the holes. Therefore, we propose a processing device for butt holes of a liquid rocket engine frame to solve the above problems. Content of the Utility Model

[0005] The utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, the technical solution adopted by the utility model is as follows:

[0007] A processing device for docking holes of a liquid rocket engine frame, comprising a boring tool. One end of the tail of the boring tool is equipped with a driving roller for driving its own movement. An assembly cylinder is sleeved on the surface of the driving roller. A stabilizing component is sleeved around the boring tool. A control component is arranged inside the assembly cylinder. The stabilizing component includes a guiding frame. The guiding frame is sleeved on the surface of the boring tool. One end of the guiding frame away from the rubber pad is placed between the assembly cylinder and the driving roller. A positioning ring groove is formed at one end of the guiding frame inside the assembly cylinder. A telescopic spring is arranged inside the positioning ring groove. The control component includes a pushing ring. One end of the pushing ring away from the telescopic spring is fixedly connected with a first rubber ring. A fixing ring is sleeved on the surface of the driving roller. The inner wall of the inner ring of the fixing ring is slidably connected with the driving roller. The outer wall of the outer ring of the fixing ring is fixedly connected with the inner wall of the assembly cylinder. A second rubber ring is fixedly connected to one side of the fixing ring close to the pushing ring. A hydraulic chamber is formed between the fixing ring and the pushing ring. A communication window is formed on one side of the assembly cylinder close to the hydraulic chamber. A hydraulic cylinder is arranged at the top of the communication window. The bottom of the hydraulic cylinder is communicated with the hydraulic chamber through the communication window.

[0008] Preferably, an installation ring groove is formed on one side of the guiding frame close to the output end of the boring tool. A rubber pad is arranged inside the installation ring groove. The rubber pad is fixedly connected with the inner wall of the installation ring groove. The guiding frame coincides with the axis of the boring tool.

[0009] Preferably, the guiding frame is slidably connected with the inner wall of the assembly cylinder. The periphery of the boring tool does not contact the inner wall of the guiding frame.

[0010] Preferably, one end of the telescopic spring contacts the bottom of the inner cavity of the positioning ring groove, and the other end of the telescopic spring contacts the control component.

[0011] Preferably, the pushing ring is sleeved on the surface of the driving roller. The pushing ring is arranged inside the assembly cylinder. One side of the pushing ring close to the opening of the assembly cylinder contacts the end of the telescopic spring away from the guiding frame.

[0012] Preferably, the inner wall of the inner ring of the pushing ring is slidably connected with the driving roller, and the outer wall of the outer ring of the pushing ring is slidably connected with the inner wall of the assembly cylinder.

[0013] Preferably, the second rubber ring is sleeved on the surface of the driving roller. The bottom of the hydraulic cylinder is fixedly connected with the assembly cylinder.

[0014] Preferably, a threaded roller is sleeved inside the hydraulic cylinder. The threaded roller is threadedly connected with the hydraulic cylinder. A rotating wheel is fixedly connected to the top of the threaded roller.

[0015] By adopting the above technical solutions, the beneficial effects obtained by the present utility model are as follows:

[0016] In this utility model, the processing device for the docking holes of the liquid rocket engine frame achieves precise hole processing through the cooperation of multiple high-efficiency components. The guiding frame contacts the docking hole, and the rubber pad closely adheres to the hole wall, ensuring the accurate alignment of the boring tool and absorbing vibrations. The telescopic spring inside the device and the guiding frame jointly stabilize the boring tool, reducing errors. The driving roller pushes the entire device forward, and the pushing ring adjusts the pressure of the telescopic spring to adapt to different processing requirements. The hydraulic system optimizes the processing process by adjusting the pressure and changing the force on the pushing ring. The stability of the guiding frame and the rubber pad significantly improves the processing accuracy, reduces vibrations and offsets. Secondly, the adjustment functions of the hydraulic system and the pushing ring enable the device to adjust the guiding pressure according to the working requirements, enhancing the flexibility and adaptability of the device. The design of the stabilizing components reduces friction and wear, thereby extending the service life of the equipment, reducing the maintenance frequency and cost. The device efficiently completes the hole processing task through precise adjustment and stable mechanisms, and has good adaptability and long-term stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. is a schematic structural diagram of the whole of this utility model.

[0018] Figure 2 FIG. is a schematic structural diagram of the internal part of the whole of this utility model.

[0019] Figure 3 FIG. is a schematic assembly structure diagram of the boring tool and the guiding frame of this utility model.

[0020] Figure 4 FIG. is a schematic assembly structure diagram of the guiding frame and the telescopic spring of this utility model.

[0021] Figure 5 FIG. is a schematic assembly structure diagram of the pushing ring and the fixing ring of this utility model.

[0022] In the figure: 1. Boring tool; 101. Driving roller; 102. Assembly cylinder; 2. Stabilizing component; 201. Guiding frame; 202. Installation ring groove; 203. Rubber pad; 204. Positioning ring groove; 205. Telescopic spring; 3. Control component; 301. Pushing ring; 302. First rubber ring; 303. Fixing ring; 304. Second rubber ring; 305. Hydraulic chamber; 306. Connecting window; 307. Hydraulic cylinder; 308. Threaded roller; 309. Runner. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of this utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, rather than all of the embodiments. Based on the embodiments in this utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this utility model.

[0024] Embodiment: As Figures 1 - 5 shown, the present utility model provides a processing device for docking holes of a liquid rocket engine frame, which includes a boring tool 1. One end of the tail of the boring tool 1 is installed with a driving roller 101 for driving its own movement. An assembly cylinder 102 is sleeved on the surface of the driving roller 101. A stabilizing component 2 is sleeved around the boring tool 1. A control component 3 is arranged inside the assembly cylinder 102. Through the cooperation of the stabilizing component 2 and the hydraulic system, the device can effectively reduce the vibration and friction during the working process, reduce the wear of components. This not only improves the stability of the device, but also extends its service life, and reduces the maintenance frequency and cost.

[0025] Furthermore, a guiding frame 201 is provided in the stabilizing component 2. The guiding frame 201 is sleeved on the surface of the boring tool 1, and the boring tool 1 does not contact the inner wall of the guiding frame 201 around it. An installation ring groove 202 is opened on one side of the guiding frame 201 close to the output end of the boring tool 1. A rubber pad 203 is arranged in the installation ring groove 202, and the rubber pad 203 is fixedly connected with the inner wall of the installation ring groove 202. The guiding frame 201 coincides with the axis of the boring tool 1. One end of the guiding frame 201 away from the rubber pad 203 is placed between the assembly cylinder 102 and the driving roller 101. The guiding frame 201 is slidably connected with the inner wall of the assembly cylinder 102. A positioning ring groove 204 is opened at one end of the guiding frame 201 in the assembly cylinder 102. A telescopic spring 205 is arranged in the positioning ring groove 204. One end of the telescopic spring 205 contacts the bottom of the inner cavity of the positioning ring groove 204, and the other end of the telescopic spring 205 contacts the control component 3. When the boring tool 1 contacts the opening point of the docking hole, the guiding frame 201 and the rubber pad 203 will contact the opening point of the docking hole first. Subsequently, the guiding frame 201 compresses the return spring, and the boring tool 1 contacts the opening point to work. For the working device of the boring tool 1, the guiding frame 201 and the device at the tail of the boring tool 1 form an integral body, so that the vibration of the boring tool 1 under force is reduced, the stability of the overall device is improved, and the opening accuracy is improved.

[0026] Further, a push ring 301 is provided in the control component 3. The push ring 301 is sleeved on the surface of the driving roller 101. The push ring 301 is placed inside the assembly cylinder 102. One side of the push ring 301 close to the opening of the assembly cylinder 102 contacts with one end of the telescopic spring 205 far away from the guiding frame 201. One end of the push ring 301 far away from the telescopic spring 205 is fixedly connected with a first rubber ring 302. The inner wall of the push ring 301 is slidably connected with the driving roller 101. The outer wall of the push ring 301 is slidably connected with the inner wall of the assembly cylinder 102. A fixing ring 303 is sleeved on the surface of the driving roller 101. The inner wall of the fixing ring 303 is slidably connected with the driving roller 101. The outer wall of the fixing ring 303 is fixedly connected with the inner wall of the assembly cylinder 102. One side of the fixing ring 303 close to the push ring 301 is fixedly connected with a second rubber ring 304. The second rubber ring 304 is sleeved on the surface of the driving roller 101. A hydraulic chamber 305 is formed between the fixing ring 303 and the push ring 301. A communication window 306 is opened on one side of the assembly cylinder 102 close to the hydraulic chamber 305. A hydraulic cylinder 307 is arranged on the top of the communication window 306. The bottom of the hydraulic cylinder 307 is fixedly connected with the assembly cylinder 102. The bottom of the hydraulic cylinder 307 is communicated with the hydraulic chamber 305 through the communication window 306. A threaded roller 308 is sleeved in the hydraulic cylinder 307. The threaded roller 308 is threadedly connected with the hydraulic cylinder 307. The top of the threaded roller 308 is fixedly connected with a runner 309. By rotating the runner 309, the threaded roller 308 extrudes the hydraulic oil in the hydraulic cylinder 307, and the hydraulic oil enters into the hydraulic chamber 305. The push ring 301 can push the telescopic spring 205 forward or backward, so as to adjust the contact force between the guiding frame 201 and the opening point, so that the device can adapt to different working states and make a trade-off between the overall service life and stability of the device.

[0027] Working principle: When the machining of the docking hole of the liquid rocket engine frame starts, the boring tool 1 contacts with the opening point of the docking hole. At this time, the guiding frame 201 will contact with the docking hole first. The rubber pad 203 inside the guiding frame 201 will be in close contact with the wall of the docking hole to ensure the stability of the guiding frame 201 and help the boring tool 1 accurately align with the opening point.

[0028] Through the contact between the guiding frame 201 and the wall of the docking hole by the rubber pad 203, the boring tool 1 can be effectively prevented from generating errors due to vibration or deviation. The guiding frame 201 is aligned with the axis of the boring tool 1, ensuring the stability of the boring tool 1 during the machining process. The guiding frame 201 also includes a telescopic spring 205, which can provide a stable contact force when the guiding frame 201 contacts with the docking hole and absorb vibration during the working process of the boring tool 1.

[0029] The drive roller 101 inside the assembly cylinder 102 drives the entire device forward by driving its own movement. A push ring 301 is sleeved on the surface of the drive roller 101. The push ring 301 is slidably connected inside the assembly cylinder 102. By pushing the push ring 301, the telescopic spring 205 is adjusted to adjust the contact force between the guiding frame 201 and the hole opening point. This adjustment can adapt to different working states.

[0030] The connection between the hydraulic cylinder 307 and the hydraulic chamber 305 enables the device to be adjusted as needed. The threaded roller 308 inside the hydraulic cylinder 307 controls the entry of hydraulic oil by rotating the runner 309, thereby changing the pressure inside the hydraulic chamber 305 and pushing the push ring 301 to adjust the pressure of the telescopic spring 205. This adjustment can change the contact force between the guiding frame 201 and the hole opening point of the docking hole to adapt to different processing requirements.

[0031] The design of the guiding frame 201 and the rubber pad 203 enables the boring tool 1 to remain stable during the processing, reducing vibration and deviation, and thus improving the accuracy of hole processing. The overall structure formed by the guiding frame 201 and the boring tool 1 can effectively distribute the forces during the processing evenly, reducing the influence of mechanical vibration on the processing accuracy. Through the design of the hydraulic system and the push ring 301, the device can be adjusted according to different working states. The adjustment of the hydraulic cylinder 307 enables the device to adapt to the processing requirements of different materials or hole diameters, improving the flexibility and adaptability of the device. The design of the guiding frame 201 enables the boring tool 1 to accurately align with the hole opening point and remain stable during the processing. This high-precision alignment reduces the processing error, improving the processing accuracy and consistency of the hole. Through the cooperation of the stabilizing assembly 2 and the hydraulic system, the device can effectively reduce the vibration and friction during the working process, reducing the wear of the components. This not only improves the stability of the device but also extends its service life, reducing the maintenance frequency and cost. The liquid rocket engine frame docking hole processing device can efficiently and accurately complete the hole processing task through advanced stabilizing and adjusting mechanisms.

[0032] Obviously, those skilled in the art can make various changes and modifications to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model is also intended to include these changes and modifications.

Claims

1. A liquid rocket engine frame docking hole processing device, characterized in that: The invention comprises a boring tool (1), wherein a driving roller (101) for driving the boring tool (1) is installed at one end of the rear end thereof, wherein a mounting tube (102) is sleeved on the surface of the driving roller (101), wherein a stabilizing component (2) is sleeved around the boring tool (1), wherein the mounting tube (102) has a built-in control component (3), wherein the stabilizing component (2) comprises a guide frame (201), wherein the guide frame (201) is sleeved on the surface of the boring tool (1), wherein one end of the guide frame (201) away from the rubber pad (203) is disposed between the mounting tube (102) and the driving roller (101), wherein one end of the guide frame (201) in the mounting tube (102) is provided with a positioning ring groove (204), wherein a telescopic spring (205) is built-in in the positioning ring groove (204), and wherein the control component (3) comprises a push ring (301), wherein the push ring (301) A first rubber ring (302) is fixedly connected to one end away from the telescopic spring (205); a fixed ring (303) is sleeved on the surface of the driving roller (101); an inner ring wall of the fixed ring (303) is slidably connected to the driving roller (101); an outer ring wall of the fixed ring (303) is fixedly connected to the inner wall of the assembly cylinder (102); a second rubber ring (304) is fixedly connected to a side of the fixed ring (303) close to the push ring (301); a hydraulic chamber (305) is formed between the fixed ring (303) and the push ring (301); a communication window (306) is provided on a side of the assembly cylinder (102) close to the hydraulic chamber (305); a hydraulic cylinder (307) is provided on the top of the communication window (306); and the bottom of the hydraulic cylinder (307) is connected to the hydraulic chamber (305) through the communication window (306).

2. A liquid rocket engine frame docking hole processing device according to claim 1, characterized in that: A mounting ring groove (202) is provided on one side of the guide frame (201) close to the output end of the boring tool (1), a rubber pad (203) is built into the mounting ring groove (202), and the rubber pad (203) is fixedly connected to the inner wall of the mounting ring groove (202), and the guide frame (201) coincides with the axis of the boring tool (1).

3. A liquid rocket engine frame docking hole processing device according to claim 1, characterized in that: The guide frame (201) is slidably connected to the inner wall of the assembly tube (102), and the boring tool (1) is not in contact with the inner wall of the guide frame (201) on all sides.

4. A liquid rocket engine frame docking hole processing device according to claim 1, characterized in that: One end of the telescopic spring (205) contacts the bottom of the inner cavity of the positioning ring groove (204), and the other end of the telescopic spring (205) contacts the control component (3).

5. The liquid rocket engine frame docking hole processing device according to claim 1, characterized in that: The push ring (301) is sleeved on the surface of the driving roller (101), and the push ring (301) is placed in the assembly tube (102). The side of the push ring (301) close to the opening of the assembly tube (102) contacts the end of the telescopic spring (205) away from the guide frame (201).

6. A liquid rocket engine frame docking hole processing device according to claim 1, characterized in that: The inner ring wall of the push ring (301) is slidably connected to the driving roller (101), and the outer ring wall of the push ring (301) is slidably connected to the inner wall of the assembly cylinder (102).

7. A liquid rocket engine frame docking hole processing device according to claim 1, characterized in that: The second rubber ring (304) is sleeved on the surface of the driving roller (101), and the bottom of the hydraulic cylinder (307) is fixedly connected to the assembly cylinder (102).

8. The liquid rocket engine frame docking hole processing device according to claim 1, characterized in that: A threaded roller (308) is sleeved inside the hydraulic cylinder (307), the threaded roller (308) is threadedly connected to the hydraulic cylinder (307), and a rotating wheel (309) is fixedly connected to the top of the threaded roller (308).

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