In-situ impact rotary extrusion device for improving shaft structure additive repair quality

Abstract

The invention discloses an in-situ impact rotary extrusion device for improving shaft structure additive repair quality, which consists of a side plate, a positioning device and a rotary extrusion device, and is characterized in that the side plate is mounted on a guide rail in a sliding manner, and the positioning device consists of a transverse adjusting mechanism and a longitudinal adjusting mechanism; the bottom end of the transverse adjusting mechanism is fixedly mounted on the side plate, the longitudinal adjusting mechanism is fixedly mounted at the top end of the transverse adjusting mechanism, and the rotary extrusion device is fixedly mounted on the longitudinal adjusting mechanism; through the impact rotary extrusion technology, the structure state of the material is effectively improved, and the compactness and the mechanical property of the material are improved; through real-time regulation and control, the residual stress can be effectively reduced in the repairing process, so that the stability and reliability of the repaired structure are enhanced; the forming quality, the structure state and the residual stress can be synchronously controlled, real-time regulation and control are achieved, and the repairing quality is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of shaft repair, specifically a in-situ impact rotary extrusion device for improving the additive repair quality of shaft structures. BACKGROUND

[0002] Shaft structures inevitably suffer damage during long-term service, which severely weakens the structural integrity and safety of use. Developing high-reliability shaft structure repair technology is an urgent need and a positive response to the development of circular and green economies. In the field of shaft structure repair, additive manufacturing technology shows great potential, but it can easily cause a series of problems such as poor forming, coarse grains, and pore formation during the manufacturing process, and high residual stress also limits its widespread application.

[0003] This study proposes an additive repair device for shaft structures based on impact rotary extrusion technology, aiming to achieve real-time regulation during the additive repair process. The device can simultaneously control the forming quality, microstructure, and residual stress, significantly improving the repair quality and ensuring that the shaft structure can restore and maintain good performance after repair.

[0004] For the repair of shaft parts, although there are many existing technologies, there are still obvious limitations. For example, during the additive repair process, spinning deformation and local heat treatment processes are often used to transform the casting structure into a forging structure to improve its mechanical properties. However, these methods often fail to meet the high-precision requirements for surface repair of shaft parts in practical applications, and the additive strengthening ability is insufficient, resulting in the performance of the repaired parts not meeting the expected standards. More importantly, there is a lack of effective tools that can real-time regulate the additive repair forming quality on the market, limiting the optimization and quality assurance of the repair process. The present application aims to fill this market gap. This technology not only significantly improves the repair precision and performance of shaft parts, but also realizes real-time regulation of the repair process, ensuring the stability and reliability of the repair quality. SUMMARY

[0005] The present application aims to provide a in-situ impact rotary extrusion device for improving the additive repair quality of shaft structures to solve the problems of substandard surface repair precision and insufficient additive strengthening ability mentioned in the background technology.

[0006] In order to achieve the above object, the application provides the following technical scheme: a in-situ impact rotary extrusion device for improving additive repair quality of shaft structure, which is composed of a side plate, a positioning device and a rotary extrusion device, the side plate is slidingly installed on a guide rail, the positioning device is composed of a transverse adjusting mechanism and a longitudinal adjusting mechanism, the transverse adjusting mechanism is fixedly installed at the bottom of the side plate, the top end of the transverse adjusting mechanism is fixedly installed with the longitudinal adjusting mechanism, and the rotary extrusion device is fixedly installed on the longitudinal adjusting mechanism.

[0007] Furthermore, the bottom of the side plate is fixedly installed with a sliding block, the sliding block is slidingly installed on the guide rail, the positioning device is installed on one side of the side plate, and a counterweight is installed on the other side of the side plate.

[0008] Furthermore, the positioning device is installed on one side of the side plate, and the counterweight is installed on the other side of the side plate, the counterweight is fixedly connected with the side plate and is fixedly installed on the sliding block together.

[0009] Furthermore, the transverse adjusting mechanism is composed of a plurality of supporting legs, a transverse guide rail and a transverse sliding block, the supporting legs are fixedly installed at both ends of the transverse guide rail, the bottom of the supporting leg is fixedly installed on the side plate, the top of the supporting leg is fixedly installed with the transverse guide rail, the transverse sliding block is slidingly installed on the transverse guide rail, and the transverse sliding block is provided with a limiting device at the side edge.

[0010] Furthermore, the transverse adjusting mechanism is provided with a plurality of groups, which are arranged in parallel with each other, and the transverse adjusting mechanism is arranged in parallel with the guide rail on the side plate.

[0011] Furthermore, the longitudinal adjusting mechanism is composed of a longitudinal guide rail and a longitudinal sliding block, the longitudinal guide rail is fixedly installed on the transverse sliding block, the longitudinal sliding block is slidingly installed on the longitudinal guide rail, and the longitudinal sliding block is provided with a limiting device at the side edge.

[0012] Furthermore, the rotary extrusion device comprises a motor and a rotary extrusion head, the output end of the motor is fixedly connected with the rotary extrusion head, the motor is installed on the longitudinal sliding block through a rotary column, one end of the rotary column is fixedly installed on the longitudinal sliding block, and the other end of the rotary column is slidingly connected with the motor.

[0013] Furthermore, the rotary extrusion device further comprises an infrared temperature measuring device, the infrared temperature measuring device is fixedly installed on the longitudinal sliding block and located above the rotary column.

[0014] Furthermore, the rotary column is provided with an adjusting device at the motor connection end, the adjusting device controls the motor to rotate by a certain angle on the rotary column.

[0015] Furthermore,

[0016] Step one: place the device on the horizontal ground, and adjust the front and back positions of the overall structure through the guide rail;

[0017] Step two: move the horizontal slider and the vertical slider respectively to adjust the horizontal position and vertical height of the rotating extrusion head;

[0018] Step three: start the lathe to rotate the shaft part at a certain angular velocity, and at the same time, start the switch of the device to make the motor drive the rotating extrusion head to impact and rotate at a preset frequency and angular velocity, so as to extrude the repaired part of the shaft part;

[0019] Step four: use the infrared temperature measuring device to obtain the overall temperature distribution of the shaft structure, determine the effective range suitable for impact and rotation extrusion, and adjust the position of the rotating extrusion head to ensure the repair quality.

[0020] Compared with the prior art, the beneficial effects of the present application are:

[0021] 1. The impact and rotation extrusion technology of the present application effectively improves the organization state of the material and improves its density and mechanical properties.

[0022] 2. The present application can effectively reduce residual stress during the repair process through real-time control, thereby enhancing the stability and reliability of the repaired structure.

[0023] 3. The present application provides an innovative device that can simultaneously control the forming quality, organization state and residual stress, realize real-time control and ensure the repair quality. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a perspective view of the present application;

[0025] Figure 2 is a front view of the present application;

[0026] Figure 3 is a left view of the present application;

[0027] Figure 4 is a top view of the present application;

[0028] Figure 5 is a working schematic diagram of the present application;

[0029] In the figure: 1, side plate;

[0030] 2, positioning device; 21, horizontal adjustment mechanism; 22, vertical adjustment mechanism; 211, horizontal slide rail; 212, horizontal slider; 213, foot; 221, vertical slide rail; 222, vertical slider;

[0031] 3, rotating extrusion device; 31, infrared temperature measuring device; 32, motor; 33, rotating extrusion head; 34, rotating column;

[0032] 4, guide rail; 5, counterweight. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

[0034] Please refer to Figures 1-5 An embodiment provided by the present application includes the following technical solutions:

[0035] The in-situ impact rotating extrusion device for improving the additive repair quality of a shaft structure is composed of a side plate 1, a positioning device 2 and a rotating extrusion device 3. The side plate 1 is slidingly installed on a guide rail 4. The positioning device 2 is composed of a transverse adjusting mechanism 21 and a longitudinal adjusting mechanism 22. The transverse adjusting mechanism 21 is fixedly installed at the bottom of the side plate 1. The longitudinal adjusting mechanism 22 is fixedly installed on the transverse adjusting mechanism 21. The rotating extrusion device 3 is fixedly installed on the longitudinal adjusting mechanism 22.

[0036] The bottom of the side plate 1 is fixedly installed with a sliding block, which is slidingly installed on the guide rail. The side plate is installed with the positioning device on one side. The side edge of the sliding block is provided with a limiting device. The other side is installed with a counterweight 5.

[0037] The side plate 1 is installed with the positioning device 2 on one side and installed with the counterweight 5 on the other side. The counterweight 5 is fixedly connected with the side plate 1 and is fixedly installed on the sliding block together. This prevents the structure from toppling over during work.

[0038] The transverse adjusting mechanism 21 is composed of a supporting leg 213, a transverse guide rail 211 and a transverse sliding block 212. The supporting leg 213 is provided with a plurality of supporting legs, which are fixedly installed at both ends of the transverse guide rail 211. The bottom of the supporting leg 213 is fixedly installed on the side plate 1. The top of the supporting leg 213 is fixedly installed on the transverse guide rail 211. The transverse sliding block 212 is slidingly installed on the transverse guide rail. The side edge of the transverse sliding block 212 is provided with a limiting device.

[0039] The transverse adjusting mechanism 21 is provided with a plurality of groups, which are arranged in parallel with each other. The transverse adjusting mechanism 21 is arranged in parallel with the horizontal plane on the side plate 1.

[0040] The longitudinal adjusting mechanism 22 is composed of a longitudinal guide rail 221 and a longitudinal sliding block 222. The longitudinal guide rail 221 is fixedly installed on the transverse sliding block 212. The longitudinal sliding block 222 is slidingly installed on the longitudinal guide rail 221. The side edge of the longitudinal sliding block 222 is provided with a limiting device.

[0041] The rotating extrusion device 3 includes a motor 32 and a rotating extrusion head 33. The output end of the motor 32 is fixedly connected with the rotating extrusion head 33. The motor 32 is installed on the longitudinal sliding block 222 through a rotating column 34. One end of the rotating column 34 is fixedly installed on the longitudinal sliding block 222. The other end of the rotating column 34 is slidingly connected with the motor 32.

[0042] The rotating extrusion device 3 further comprises an infrared temperature measuring device 31 fixedly installed on the longitudinal sliding block 222 above the rotating column 34.

[0043] The rotating column 34 is provided with an adjusting device at a connecting end of the motor 32, and the adjusting device controls the motor 32 to rotate by a certain angle on the rotating column 34.

[0044] The motor 32 and the rotating extrusion head 33 are installed below the infrared temperature measuring device 31, the motor 32 can rotate within a certain range to adjust the angle of the rotating extrusion head 33, and can also drive the impact and rotating extrusion behavior of the rotating extrusion head 33. According to the measurement data of the infrared temperature measuring device 31, the impact and rotating extrusion position of the rotating extrusion head 33 is determined, and the rotating motor 32 is adjusted to accurately align the rotating extrusion head 33 to the position.

[0045] The workshop method steps of the present application are as follows:

[0046] Step two: respectively move the horizontal sliding block 212 and the longitudinal sliding block 222 to adjust the horizontal position and vertical height of the rotating extrusion head 33;

[0047] Step three: start the lathe to rotate the shaft part at a certain angular velocity, and at the same time, start the switch of the device to make the motor 32 drive the rotating extrusion head 33 to impact and rotate at a preset frequency and angular velocity to extrude the repaired part of the shaft part;

[0048] Step four: use the infrared temperature measuring device 31 to obtain the overall temperature distribution of the shaft structure, determine the effective range suitable for impact and rotating extrusion, and adjust the position of the rotating extrusion head 33 to ensure the repair quality.

[0049] It is apparent to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

Claims

1. An in-situ impact rotary extrusion device for improving the quality of additive repair of shaft structures, comprising a side plate, a positioning device, and a rotary extrusion device, characterized in that: The side plate is slidably mounted on the guide rail. The positioning device consists of a lateral adjustment mechanism and a longitudinal adjustment mechanism. The bottom end of the lateral adjustment mechanism is fixedly mounted on the side plate, and the top end of the lateral adjustment mechanism is fixedly mounted on the longitudinal adjustment mechanism. The rotary extrusion device is fixedly mounted on the longitudinal adjustment mechanism.

2. The in-situ impact rotary extrusion device for improving the quality of additive repair of shaft structures according to claim 1, characterized in that: A slider is fixedly installed at the bottom of the side plate, and it is slidably mounted on the guide rail via the slider. A positioning device is installed on one side of the side plate, and a counterweight is installed on the other side; a limiting device is provided on the side of the slider.

3. The in-situ impact rotary extrusion device for improving the quality of additive repair of shaft structures according to claim 1, characterized in that: A positioning device is installed on one side of the side plate, and a counterweight is installed on the other side. The counterweight is fixedly connected to the side plate and together they are fixedly installed on the slider.

4. The in-situ impact rotary extrusion device for improving the quality of additive repair of shaft structures according to claim 1, characterized in that: The lateral adjustment mechanism consists of support legs, a lateral guide rail, and a lateral slider. Multiple support legs are fixedly installed at both ends of the lateral guide rail. The bottom of the support legs is fixedly installed on the side plate, and the top of the support legs is fixedly installed on the lateral guide rail. The slider is slidably installed on the lateral guide rail, and a limiting device is provided on the side of the lateral slider.

5. The in-situ impact rotary extrusion device for improving the quality of additive repair of shaft structures according to claim 4, characterized in that: The lateral adjustment mechanism is provided in multiple sets, arranged in parallel to each other, and the lateral adjustment mechanism is arranged in parallel to the horizontal plane on the side plate.

6. The in-situ impact rotary extrusion device for improving the quality of additive repair of shaft structures according to claim 1, characterized in that: The longitudinal adjustment mechanism consists of a longitudinal guide rail and a longitudinal slider. The longitudinal guide rail is fixedly installed on the transverse slider, and the longitudinal slider is slidably installed on the longitudinal guide rail. A limiting device is provided on the side of the longitudinal slider.

7. The in-situ impact rotary extrusion device for improving the quality of additive repair of shaft structures according to claim 1, characterized in that: The rotary extrusion device includes a motor and a rotary extrusion head. The output end of the motor is fixedly connected to the rotary extrusion head. The motor is mounted on the longitudinal slider via a rotating column. One end of the rotating column is fixedly mounted on the longitudinal slider, and the other end is slidably connected to the motor.

8. The in-situ impact rotary extrusion device for improving the quality of additive repair of shaft structures according to claim 7, characterized in that: The rotary extrusion device also includes an infrared temperature measuring device, which is fixedly installed on the longitudinal slider and located above the rotating column.

9. The in-situ impact rotary extrusion device for improving the quality of additive repair of shaft structures according to claim 7, characterized in that: An adjustment device is provided at the connection end between the rotating column and the motor. The adjustment device controls the motor to rotate a certain angle on the rotating column.

10. An in-situ impact rotary extrusion device and its operating method for improving the quality of additive repair of shaft structures according to any one of claims 1-9, characterized in that: Step 1: Place the device on a level surface and adjust the front and back position of the overall structure using the guide rails; Step 2: Move the horizontal and vertical sliders respectively to adjust the horizontal position and vertical height of the rotating extrusion head; Step 3: Start the lathe to make the shaft parts rotate at a certain angular velocity. At the same time, turn on the switch of the device to make the motor drive the rotating extrusion head to impact and rotate at a preset frequency and angular velocity to extrude the repaired parts of the shaft parts. Step 4: Use an infrared thermometer to obtain the overall temperature distribution of the shaft structure, determine the effective range suitable for impact rotary extrusion, and adjust the position of the rotary extrusion head to ensure repair quality.

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