Polishing device for heat insulating layer of engine combustion chamber

Abstract

The engine combustion chamber heat insulation layer grinding device comprises a machine table, a supporting mechanism, a grinding head and a driving mechanism, the supporting mechanism is arranged on the machine table and used for supporting a to-be-ground piece, the driving mechanism is arranged on the machine table, the grinding head is connected to the driving mechanism, and the driving mechanism is used for driving the grinding head to rotate. And the grinding head is driven to move along the to-be-ground surface of the to-be-ground piece. According to the engine combustion chamber heat insulation layer grinding device, the technical problem that in the prior art, the grinding efficiency is low due to the fact that a heat insulation layer is manually ground is solved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of polishing equipment, and more particularly to an engine combustion chamber heat insulation layer polishing device. BACKGROUND

[0002] The solid rocket engine combustion chamber has a heat insulation layer material, which is located between the combustion chamber shell inner wall and the solid propellant, mainly plays a heat insulation and corrosion resistance role, can reduce the speed of heat transfer from high temperature gas to the shell, and ensures the thermal safety of the shell part during engine ignition work.

[0003] Before the engine combustion chamber is charged, the heat insulation layer needs to be roughened to increase its roughness and improve the interface bonding performance, so as to enhance the bonding strength of the bonding interface between the heat insulation layer and the propellant. However, the existing technology generally adopts manual polishing method, which has problems of high polishing difficulty and low efficiency. CONTENT OF THE UTILITY MODEL

[0004] The purpose of the embodiment of the application is to provide an engine combustion chamber heat insulation layer polishing device to solve the technical problem of low polishing efficiency of the heat insulation layer by manual polishing in the prior art.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the application is: providing an engine combustion chamber heat insulation layer polishing device, comprising: a machine table; a supporting mechanism, the supporting mechanism is arranged on the machine table, and is used for supporting a to-be-polished part; a polishing head; and a driving mechanism, the driving mechanism is arranged on the machine table, the polishing head is connected to the driving mechanism, and the driving mechanism is used for driving the polishing head to rotate and move the polishing head along the to-be-polished surface of the to-be-polished part.

[0006] In an optional embodiment, the supporting mechanism comprises a clamping piece and a supporting piece, the clamping piece is arranged on the machine table and is used for clamping and fixing one end of the to-be-polished part, and the supporting piece is arranged on the machine table and is used for supporting and supporting the to-be-polished part.

[0007] In an optional embodiment, the supporting mechanism further comprises a rotating piece, the rotating piece is arranged on the machine table, the rotating piece is connected with the clamping piece, and is used for driving the clamping piece to rotate to drive the to-be-polished part to rotate.

[0008] In an optional embodiment, the supporting piece comprises a base and a supporting wheel, two bases are arranged on the machine table in a spaced manner; at least one supporting wheel is rotatably mounted on each base, and the to-be-polished part is supported on the supporting wheel and in contact with the supporting wheel.

[0009] In an optional embodiment, the supporting mechanism further comprises a lifting piece, the lifting piece is arranged on the machine table, the lifting piece is connected with the supporting piece, and is used for adjusting the height of the supporting piece.

[0010] In an optional embodiment, the engine combustion chamber insulation layer polishing device further comprises a dust collection mechanism and a dust collection cover, the dust collection mechanism is arranged on one side of the machine table, the dust collection cover is sleeved on the periphery of the polishing head, the dust collection cover is provided with a dust collection port, and the dust collection port is communicated with the suction hole of the dust collection mechanism through a pipeline.

[0011] In an optional embodiment, the driving mechanism comprises a rotating driving member and a swinging driving member, the rotating driving member and the swinging driving member are arranged on the machine table, the polishing head is connected to the driving end of the rotating driving member, and the rotating driving member is used to drive the polishing head to rotate around the axis thereof; the swinging driving member is connected to the polishing head and is used to drive the polishing head to move along the surface to be polished.

[0012] In an optional embodiment, the engine combustion chamber insulation layer polishing device further comprises a moving mechanism, the moving mechanism comprises a horizontal driving member and a vertical driving member, the vertical driving member is connected to the driving end of the horizontal driving member, the horizontal driving member is used to drive the vertical driving member to move in the horizontal direction, and the driving end of the vertical driving member is connected to the rotating driving member and the swinging driving member.

[0013] In an optional embodiment, the engine combustion chamber insulation layer polishing device further comprises a detection mechanism and a control module, the detection mechanism is used to detect the distance from the polishing head to the surface to be polished, the control module is in communication connection with the detection mechanism and the driving mechanism, and the control module is used to adjust the feeding speed of the driving mechanism according to the signal fed back by the detection mechanism.

[0014] In an optional embodiment, the detection mechanism comprises a first laser sensor, the control module is in communication connection with the first laser sensor, the first laser sensor is arranged on one side of the polishing head, and the first laser sensor is used to detect the distance from the polishing head to the surface to be polished.

[0015] The engine combustion chamber insulation layer polishing device provided by the application has the following beneficial effects: compared with the prior art, the engine combustion chamber insulation layer polishing device of the embodiment of the application is provided with a supporting mechanism arranged on the machine table, which can stably support the workpiece to be polished, the polishing head is controlled to move by the driving mechanism, the polishing head can be driven to rotate around the axis thereof and to move along the surface to be polished, so that the polishing head can uniformly polish the inner wall of the combustion chamber shell, and the automatic polishing of the inner wall of the engine combustion chamber is realized. Compared with manual polishing, the polishing device can work continuously, the polishing efficiency is significantly improved, the quality consistency of each polishing can be ensured due to the accuracy and repeatability of mechanical action, the quality fluctuation caused by human factors is reduced, the opportunity for workers to be exposed to harmful dust environment is reduced, the roughness of the surface of the insulation layer can be effectively increased through polishing, and the bonding strength between the insulation layer and the solid propellant is increased. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0017] Figure 1 The cooperation structure between the engine combustion chamber insulation layer polishing device provided by the embodiments of the present application and the workpiece to be polished is shown in the figure Figure 1 ;

[0018] Figure 2 The cooperation structure between the engine combustion chamber insulation layer polishing device provided by the embodiments of the present application and the workpiece to be polished is shown in the figure Figure 2 ;

[0019] Figure 3 The structure diagram of the engine combustion chamber insulation layer polishing device provided by the embodiments of the present application is shown in the figure

[0020] Figure 4 The internal structure diagram of the engine combustion chamber insulation layer polishing device provided by the embodiments of the present application is shown in the figure

[0021] Figure 5 The structure diagram of the supporting piece provided by the embodiments of the present application is shown in the figure

[0022] Figure 6 The partial structure diagram of the engine combustion chamber insulation layer polishing device provided by the embodiments of the present application is shown in the figure

[0023] Figure 7 The cooperation structure between the polishing head and the driving mechanism provided by the embodiments of the present application is shown in the figure Figure 1 ;

[0024] Figure 8 The cooperation structure between the polishing head and the driving mechanism provided by the embodiments of the present application is shown in the figure Figure 2 ;

[0025] Figure 9 The cooperation structure between the polishing head and the driving mechanism provided by the embodiments of the present application is shown in the figure Figure 3 .

[0026] In the figure, various reference signs are:

[0027] 100 - engine combustion chamber insulation polishing device; 10 - machine table; 20 - support mechanism; 21 - clamping member; 22 - supporting member; 221 - base; 222 - supporting wheel; 23 - rotating member; 24 - lifting member; 25 - encoder assembly; 30 - polishing head; 31 - extension member; 311 - extension pipe; 312 - connecting pipe; 3121 - avoiding space; 40 - driving mechanism; 41 - rotating driving member; 42 - swinging driving member; 43 - first transmission assembly; 44 - second transmission assembly; 45 - guide member; 50 - detecting mechanism; 51 - first laser sensor; 52 - second laser sensor; 60 - moving mechanism; 61 - horizontal driving member; 62 - vertical driving member; 70 - dust collection mechanism; 71 - suction hole; 80 - dust collection cover; 81 - dust suction port; 200 - to-be-polished member. DETAILED DESCRIPTION

[0028] In order to make the technical problems to be solved, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not intended to limit the present application.

[0029] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0030] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0031] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0032] The solid rocket engine combustion chamber has a heat insulation layer material between the combustion chamber shell inner wall and the solid propellant, which mainly plays a role of heat insulation and corrosion resistance, can reduce the speed of heat transfer from high-temperature gas to the shell, and ensures the thermal safety of the shell part during the engine ignition working period.

[0033] Before the combustion chamber shell is charged, the heat insulation layer needs to be roughened to increase its roughness, improve the interface bonding performance, and thus enhance the bonding strength of the bonding interface between the heat insulation layer and the propellant. However, the existing technology generally adopts manual polishing, which has problems such as high polishing difficulty, high cost, poor quality consistency, and low efficiency, and is difficult to meet the needs of high-quality and batch production.

[0034] For reference Figures 1 to 9 , the engine combustion chamber heat insulation layer polishing device 100 provided by the embodiment of the present application will be described. The engine combustion chamber heat insulation layer polishing device 100 comprises: a machine table 10; a support mechanism 20, the support mechanism 20 is arranged on the machine table 10, and the support mechanism 20 is used for supporting a workpiece 200 to be polished; a polishing head 30; a driving mechanism 40, the driving mechanism 40 is arranged on the machine table 10, the polishing head 30 is connected to the driving mechanism 40, and the driving mechanism 40 is used for driving the polishing head 30 to rotate and move the polishing head 30 along the surface to be polished of the workpiece 200 to be polished.

[0035] The machine table 10 is a basic structure for bearing and fixing other components, and provides a mounting basis for the support mechanism 20 and the driving mechanism 40, and ensures stable operation of the whole device. The machine table 10 can be realized by adopting a box type structure or a frame type structure. A solid machine table 10 design can bear the weight of the driving mechanism 40, the support mechanism 20 and the workpiece 200 to be polished, and reduce vibration during operation, which helps to improve polishing precision. In addition, mobile wheels can be arranged at the bottom of the machine table 10 to facilitate the transportation of the polishing device.

[0036] The support mechanism 20 is used for fixing and keeping the position of the workpiece 200 to be polished, ensuring that the workpiece 200 to be polished remains stable during polishing to avoid deviation or vibration. The support mechanism 20 can be realized by adopting a clamp or a support frame. The support mechanism 20 is adjusted according to the different shapes and sizes of the workpiece 200 to be polished, to ensure that it remains stable during polishing, which helps to accurately control the position of the polishing head 30 relative to the surface to be polished, thereby ensuring the consistency and uniformity of polishing. The workpiece 200 to be polished is a solid rocket engine combustion chamber shell, and the surface to be polished is the heat insulation layer on the inner wall of the combustion chamber shell.

[0037] The polishing head 30 directly contacts the surface to be polished to perform polishing work, and removes the heat insulation layer material on the surface to be polished by rotating friction to realize roughening. The polishing head 30 can be realized by adopting a round ball polishing head or a rotating grinding wheel, and the surface is covered with abrasive.

[0038] The driving mechanism 40 refers to a power device that controls the movement and rotation of the polishing head 30. By driving the polishing head 30 to rotate and move along the surface to be polished, the automatic polishing path control is achieved, replacing manual operation, greatly improving production efficiency, and reducing the possibility of errors caused by manual intervention. The driving mechanism 40 can specifically use a motor combined with a transmission shaft or a mechanical arm structure to achieve.

[0039] Through the linkage design of the driving mechanism 40 and the polishing head 30, the polishing head 30 automatically moves along the surface to be polished while rotating, combined with the stable fixation of the support mechanism 20 to the workpiece 200 to be polished, the problem of low efficiency and poor precision of manual polishing is solved, and the automatic and uniform polishing of the engine combustion chamber insulation layer is achieved.

[0040] Mechanized operation replaces the traditional manual polishing method, reducing the polishing difficulty and significantly improving the polishing speed and work efficiency; due to the accuracy and repeatability of mechanical action, the quality consistency of each polishing can be guaranteed, reducing the quality fluctuations caused by human factors, and reducing the opportunity for workers to be exposed to harmful dust environments. In addition, by optimizing polishing parameters such as force and speed, the roughness of the insulation layer surface can be effectively increased, thereby enhancing the bonding strength between the insulation layer and the solid propellant.

[0041] In actual operation, first, the combustion chamber shell is fixed on the support mechanism 20, then the driving mechanism 40 is started, and the polishing head 30 begins to rotate and move along the preset path. The rotation speed and movement speed of the polishing head 30 can be adjusted according to the material of the combustion chamber inner wall and the required surface roughness, and the entire polishing process is automatically executed by the control system without manual intervention. The automatic polishing of the engine combustion chamber inner wall is achieved. Compared with manual polishing, the polishing device can maintain constant contact pressure and angle between the polishing head 30 and the combustion chamber inner wall, ensuring the consistency of polishing quality, and the automatic control system can accurately execute the preset polishing path, avoiding the problems of omission or excessive polishing that easily occur in manual operation. For complex curved surfaces and transition areas, the posture and speed of the polishing head 30 can be adjusted to achieve uniform polishing.

[0042] In addition, the polishing device can work continuously, greatly improving the polishing efficiency. Automatic polishing also reduces the labor intensity of the operator and improves the safety of the working environment, solving the problems of unstable quality and low efficiency in manual polishing, and providing a reliable guarantee for improving the bonding strength between the insulation layer of the combustion chamber and the solid propellant interface.

[0043] Compared with the prior art, the engine combustion chamber insulation layer polishing device 100 provided by the embodiment of the application can stably support the workpiece 200 to be polished through the support mechanism 20 arranged on the machine table 10, the polishing head 30 is controlled to move by the driving mechanism 40, the polishing head 30 can be driven to rotate around its own axis and move along the surface to be polished, so that the polishing head 30 can uniformly polish the inner wall of the combustion chamber shell, and the automatic polishing of the inner wall of the engine combustion chamber is realized. Compared with manual polishing, the polishing device can work continuously, and the polishing efficiency is significantly improved. Due to the accuracy and repeatability of mechanical action, the quality consistency of each polishing can be ensured, the quality fluctuation caused by human factors is reduced, the opportunity of workers exposed to harmful dust environment is reduced, the roughness of the surface of the insulation layer can be effectively increased through polishing, and then the bonding strength between the insulation layer and the solid propellant is enhanced.

[0044] In some embodiments of the application, please refer to Figure 4 and Figure 5 The support mechanism 20 includes a clamping piece 21 and a supporting piece 22. The clamping piece 21 is arranged on the machine table 10 and is used for clamping and fixing one end of the workpiece 200 to be polished. The supporting piece 22 is arranged on the machine table 10 and is used for supporting the workpiece 200 to be polished.

[0045] By clamping one end of the workpiece 200 to be polished, it can be ensured that the combustion chamber shell does not displace or tilt during polishing, so as to ensure the polishing accuracy. The combustion chamber shell is provided with a stable support platform by the supporting piece 22, and the stability of the whole is further enhanced, especially when a long or heavy part is installed, the deformation or instability caused by the action of gravity is avoided.

[0046] The clamping piece 21 can adopt a hydraulic clamping device, including a clamping jaw and a hydraulic cylinder. The hydraulic cylinder drives the clamping jaw to open and close, and clamps or releases the workpiece 200 to be polished. In some embodiments, as shown in Figure 4 The clamping piece 21 adopts an adjustable clamping jaw structure, the inner side or end face of the clamping jaw can be provided with anti-skid lines, and the clamping jaw can be adjusted, enlarged or reduced, so as to adapt to combustion chamber shells with different diameters.

[0047] The supporting piece 22 can adopt an arc-shaped supporting plate with a curvature matched with the outer surface of the shell, a large supporting area and uniform stress, which can effectively prevent the thin-walled shell from deforming due to local stress. The supporting piece 22 can also adopt a V-shaped bracket which is processed with a V-shaped groove for supporting the outer surface of the cylindrical shell. The supporting piece 22 can also be provided with a roller type supporting structure, which can cooperate with the driving system to realize the rotation of the combustion chamber shell, and facilitate the uniform polishing of the entire circumferential inner wall.

[0048] In some embodiments, as shown in Figures 1 to 5, the end of the combustion chamber shell is inserted into the clamping piece 21 during operation, the driving device pushes the clamping jaw to close to achieve axial fixation, and the main body of the combustion chamber shell is erected on the supporting piece 22. When the polishing head 30 exerts radial pressure, the support structure formed by the clamping piece 21 and the supporting piece 22 limits the axial movement and radial swing of the workpiece, thereby realizing stable support and positioning of the workpiece 200 to be polished.

[0049] The clamping piece 21 fixes one end of the workpiece 200 to be polished, so that displacement or rotation of the workpiece 200 to be polished during polishing is prevented. The supporting piece 22 provides support for the workpiece 200 to be polished, reduces the cantilever length of the workpiece 200 to be polished, and reduces vibration during polishing. This support mode improves polishing accuracy and efficiency, and can also be applied to workpieces 200 to be polished of different sizes, thereby enhancing the versatility of the device.

[0050] In some embodiments of the present application, referring to Figure 3 and Figure 4 , the support mechanism 20 further comprises a rotating piece 23 arranged on the machine table 10, the rotating piece 23 is connected with the clamping piece 21, and is used to drive the clamping piece 21 to rotate, so as to drive the workpiece 200 to be polished to rotate.

[0051] By arranging the rotating piece 23, the clamping piece 21 can be driven to rotate, so that the workpiece is automatically rotated, the polishing head 30 can uniformly and continuously polish the inner wall of the combustion chamber shell in the circumferential direction, and the polishing coverage and consistency are improved.

[0052] The rotating piece 23 can be a servo motor or a stepping motor, and the output shaft thereof is rigidly connected with the rotating shaft of the clamping piece 21 through a shaft coupling. In some embodiments, as shown in Figure 4 , the output shaft of the motor is connected with a speed reducer, and the output end of the speed reducer is connected with the shaft coupling of the clamping piece 21.

[0053] In use, after the polishing head 30 completes polishing of a straight line along the axis of the workpiece 200 to be polished, the rotating piece 23 drives the clamping piece 21 to drive the workpiece 200 to be polished to rotate around the axis by a predetermined angle. After the angle adjustment is completed, the polishing head 30 performs polishing work of the next straight line along the axis. The process is repeatedly performed until uniform polishing of the entire circumferential surface is completed. For example, when the rotating angle is set to 10 degrees, 36 angle adjustments are required to realize 360-degree full circumferential surface coverage. In this way, multi-angle continuous polishing can be realized without manual intervention, and the work efficiency is significantly improved.

[0054] Therefore, by controlling the rotating angle of the motor, the uniformity and completeness of polishing can be ensured, and repeated polishing is avoided, thereby improving the polishing quality and realizing automatic rotation and polishing of the workpiece 200 to be polished, and the polishing efficiency is improved.

[0055] In some embodiments of the present application, referring to Figures 3 to 5The supporting member 22 comprises a base 221 and a supporting wheel 222. Two bases 221 are arranged on the machine table 10 in a spaced manner. At least one supporting wheel 222 is rotatably arranged on each base 221. The workpiece 200 is supported on the supporting wheel 222 and in contact with the supporting wheel 222.

[0056] The two bases 221 are arranged in a spaced manner to form two-point support, which can effectively support the weight of the workpiece 200 and prevent deformation or vibration. The surface of the workpiece 200 is in contact with the outer edge of the supporting wheel 222, and the workpiece 200 can rotate on the supporting wheel 222.

[0057] The base 221 has a split structure. Two bases 221 are arranged in a spaced manner along the length direction of the machine table 10 to form stable double support points. In some embodiments, as shown in FIG. 2, each base 221 is provided with a connecting shaft. The supporting wheel 222 is arranged on the connecting shaft through a bearing. Each base 221 is provided with two supporting wheels 222. One of the two supporting wheels 222 is arranged at the front end of the connecting shaft, and the other is arranged at the rear end of the connecting shaft. Figure 5

[0058] The base 221 can be made of metal material, which has sufficient strength and stability. The supporting wheel 222 is made of wear-resistant material and has a smooth surface to reduce friction with the workpiece 200. The supporting wheel 222 is connected with the base 221 through a bearing to ensure flexible rotation.

[0059] In addition, more than two bases 221 can be arranged. Two bases 221 are arranged in pairs to form a group. Multiple groups of bases 221 are arranged along the axial direction of the workpiece 200. In some embodiments, as shown in FIG. 2, four bases 221 are arranged to form two groups and are arranged in a spaced manner along the axial direction of the combustion chamber shell. Figure 3 The support rigidity and stability are enhanced. Compared with single-point support, the bending and torsion resistance of the heavy or long cylindrical workpiece 200 is significantly improved, and vibration or deformation during polishing is prevented. At the same time, it can also adapt to combustion chamber shells of different lengths.

[0060] The base 221 provides a reliable support foundation, and the supporting wheel 222 allows the workpiece 200 to rotate freely, so that the workpiece 200 can remain stable during polishing, and can be conveniently rotated to uniformly polish the entire surface, thereby improving the efficiency and quality of polishing.

[0061] In addition, in some embodiments, as shown in FIG. 2, four bases 221 are arranged to form two groups and are arranged in a spaced manner along the axial direction of the combustion chamber shell. Figure 5 ​The support mechanism 20 further comprises an encoder assembly 25, which comprises a mounting, a rotating wheel rotatably mounted on the mounting and in contact with the outer circumferential surface of the workpiece 200 for rotating with the workpiece 200 and outputting a rotating speed or rotating angle signal, and an elastic element connecting the mounting with the base 221, the elastic element providing a pre-tightening force to keep the rotating wheel in contact with the workpiece 200. Through this design, the actual rotating state of the workpiece 200 can be detected, and real-time data such as rotating speed, rotating angle and number of revolutions can be provided, which can be used for the segmented polishing of the polishing head 30 to improve the automation accuracy.

[0062] In some embodiments of the present application, referring to Figure 4 and Figure 5 , the support mechanism 20 further comprises a lifting member 24 arranged on the machine table 10, and the driving end of the lifting member 24 is connected with the support member 22 for adjusting the height of the support member 22.

[0063] When the diameter of the workpiece 200 changes, the lifting member 24 can vertically lift the support member 22 to match the height of the support member 22 with the outer diameter of the workpiece 200. For example, when the diameter increases by 50 mm, the base 221 is lowered by 25 mm to keep the axis of the workpiece aligned with the polishing head 30. After the adjustment is completed, the clamping member 21 fixes one end of the workpiece, and the support member 22 supports the workpiece 200. Through the height adjustment, the same device can be adapted to workpieces with different diameter ranges without the need to replace the support member.

[0064] The lifting member 24 can be arranged as a hydraulic cylinder or a pneumatic cylinder to adjust the height of the support member 22 through telescopic movement, or can be arranged as a combination of a motor and a screw rod. Figure 5 The lifting member 24 is connected with the base 221 of the support member 22 through a threaded rod, and the rotation of the threaded rod drives the base 221 to move in the vertical direction.

[0065] In addition, as shown in Figure 5 , a guide column is arranged between the support member 22 and the machine table 10 to limit the movement of the support member 22 in the vertical direction only, and four guide columns are arranged at the four corners of the support member 22. In some embodiments, as shown in Figure 5 , a plurality of bases 221 are connected to a fixed plate, and the driving end of the lifting member 24 is connected with the fixed plate to simultaneously drive the plurality of bases 221 to lift.

[0066] The lifting member 24 realizes the adaptation to workpieces 200 with different diameters, thereby expanding the application range of the polishing device and enabling the device to process engine combustion chambers of various specifications, improving the versatility and practicality of the device.

[0067] In some embodiments of the present application, referring to Figure 1 , Figure 2 andFigure 9 The engine combustion chamber insulation layer polishing device 100 further comprises a dust suction mechanism 70 and a dust suction cover 80. The dust suction mechanism 70 is arranged on one side of the machine table 10, and the dust suction cover 80 is sleeved on the periphery of the polishing head 30. The dust suction cover 80 is provided with a dust suction port 81, and the dust suction port 81 and the suction hole 71 of the dust suction mechanism 70 are communicated through a pipeline.

[0068] By arranging the dust suction mechanism 70 and the dust suction cover 80, the particulate matter generated during polishing is directly extracted from the processing area by a negative pressure suction mode, so as to avoid the accumulation of dust on the inner surface of the combustion chamber and affect the polishing precision, and prevent the fine particles from entering the driving mechanism 40 and causing mechanical wear. The problem of metal dust and debris flying during polishing is effectively solved.

[0069] The dust suction mechanism 70 can adopt a centrifugal fan, and the air volume can be controlled by a frequency converter. The air inlet end of the dust suction mechanism 70 can be provided with a detachable metal filter screen.

[0070] As Figure 9 The dust suction cover 80 adopts an annular structure to wrap the working area of the polishing head 30, and the inner wall thereof maintains a certain gap with the rotating track of the polishing head 30. The dust suction port 81 is arranged on the side surface of the dust suction cover 80, so as to avoid interference with the movement of the polishing head 30. In addition, a plurality of dust suction ports 81 can be arranged according to needs.

[0071] When the polishing head 30 starts to rotate and work, the dust suction mechanism 70 is started synchronously to generate a negative pressure airflow. The metal debris and dust generated during polishing are limited in the closed space formed by the annular dust suction cover 80 during the flying process. The high-speed airflow sucks the debris into the pipeline system through the suction hole 71, so as to ensure the cleanliness of the operating environment, maintain the stable and reliable interface performance of the roughened insulation layer, and improve the bonding strength and consistency between the insulation layer and the propellant.

[0072] In some embodiments of the present application, please refer to Figures 7 to 9 The engine combustion chamber insulation layer polishing device 100 further comprises a detection mechanism 50 and a control module. The detection mechanism 50 is used for detecting the distance from the polishing head 30 to the surface to be polished. The control module is in communication connection with the detection mechanism 50 and the driving mechanism 40. The control module is used for adjusting the feeding speed of the driving mechanism 40 according to the signal fed back by the detection mechanism 50.

[0073] The detection mechanism 50 refers to a sensor device for measuring the distance between the polishing head 30 and the surface to be polished in real time. It acquires dynamic distance data through non-contact measurement and feeds back to the control system. Specifically, a laser ranging sensor or an ultrasonic sensor can be used to achieve this. The detection mechanism 50 can be directly installed on the polishing head 30 or installed near the polishing mechanism for monitoring. In some embodiments, the detection mechanism 50 uses a laser ranging sensor and is installed near the polishing head 30 to detect the distance between the polishing head 30 and the surface to be polished. The detection mechanism 50 is used to monitor the distance between the polishing head 30 and the surface to be polished in real time, ensuring that the polishing head 30 is always at the optimal working distance and avoiding the problems of insufficient polishing due to excessive distance or material damage caused by too small distance.

[0074] In other embodiments, a three-dimensional laser scanner can also be provided to reconstruct the surface topography of the thermal insulation layer in real time and identify defect areas such as pits, bulges, and joints. Alternatively, a vision camera can be used to identify marker points, locate the starting position of polishing, or monitor dust accumulation.

[0075] In yet other embodiments, a contact force sensor can also be provided, which is installed at the rear end of the polishing head 30 to provide real-time feedback of the normal pressure and achieve constant force polishing. Alternatively, an infrared thermal imager can be used to monitor the local temperature rise during polishing to prevent thermal damage to the thermal insulation layer caused by excessive heat.

[0076] The control module refers to a processor that adjusts the operating state of the driving mechanism 40 based on the detection data. It can be implemented using a PLC or an embedded single-chip microcomputer combined with a PID algorithm, which dynamically adjusts the feed speed through a closed-loop feedback mechanism to maintain a constant polishing pressure. In some embodiments, the control module uses an industrial control computer connected to the detection mechanism 50 and the driving mechanism 40 through a data acquisition card. Since the entire process can be programmed and precisely controlled, the polishing parameters (such as speed and feed speed) can be adjusted and repeatedly executed according to the requirements, ensuring the consistency of quality for different batches of products.

[0077] The control module can dynamically adjust the feed speed of the driving mechanism 40 based on the real-time signals provided by the detection mechanism 50, achieving adaptive polishing. This allows the system to efficiently process complex and irregular surfaces, ensuring that the entire thermal insulation layer surface roughness is uniform and meets the standards, thereby effectively enhancing the bonding strength between the thermal insulation layer and the propellant. Through precise control of the driving mechanism 40 by the control module, the adaptability to complex and irregular surfaces is improved, ensuring the consistency and uniformity of the polishing quality.

[0078] In some embodiments of the present application, please refer to Figures 7 to 9The detection mechanism 50 comprises a first laser sensor 51, and the control module is in communication connection with the first laser sensor 51. The first laser sensor 51 is arranged on one side of the polishing head 30, and is used for detecting the distance between the polishing head 30 and the surface to be polished.

[0079] As Figure 7 The first laser sensor 51 is arranged in a lateral position of the polishing head 30 in a non-contact manner, and the detection axis of the first laser sensor 51 forms a preset angle with the axis of the polishing head 30. The first laser sensor 51 calculates the real-time distance data between the polishing head 30 and the surface to be polished by emitting a laser beam and receiving a reflected signal. The first laser sensor 51 is arranged to avoid the rotating track of the polishing head 30 to avoid mechanical interference.

[0080] The first laser sensor 51 realizes multi-angle detection capability through lateral arrangement. When the polishing head 30 moves along the curved surface, the first laser sensor 51 continuously obtains surface profile data at different positions. After the control module receives the distance signal, the current working state is judged in combination with a preset threshold range: the feed speed is increased when the detected distance exceeds the upper limit, and the feed speed is reduced when the detected distance is below the lower limit. Therefore, through high-frequency and high-precision data acquisition, the measurement error caused by the change of surface reflection characteristics or local geometric mutation can be effectively overcome, and the control module can accurately maintain the constant working distance between the polishing head 30 and the surface.

[0081] The first laser sensor 51 can be a laser displacement sensor based on the triangulation principle, which comprises a laser emitter and a photoelectric receiver. The laser beam emitted by the laser emitter is irradiated onto the surface to be polished, and then is reflected back to the photoelectric receiver. By measuring the emission angle and the reflection angle of the laser beam, the accurate distance between the polishing head 30 and the surface to be polished can be calculated.

[0082] The first laser sensor 51 is arranged on the side surface of the polishing head 30, and the measurement range of the sensor can cover the normal distance variation range of the polishing head 30 during working. Therefore, the first laser sensor 51 can monitor the distance between the polishing head 30 and the surface to be polished in real time, and provide accurate distance data for the control module. The control module adjusts the feed speed of the driving mechanism 40 according to the data, so as to realize accurate control of the polishing process.

[0083] Therefore, by arranging the first laser sensor 51, the distance between the polishing head 30 and the surface to be polished can be monitored in real time and accurately, so that the mechanism can adapt to the geometric deformation or installation deviation of the inner wall of the shell, and ensure that the polishing head 30 always maintains the optimal working distance. The problems of insufficient polishing caused by too large distance or material damage caused by too small distance are avoided. Therefore, the consistency and reliability of the polishing quality are improved, and the adaptability of the polishing mechanism to complex and irregular surfaces is enhanced.

[0084] In other embodiments, please refer to Figure 8 The detection mechanism 50 further comprises a second laser sensor 52, and the control module is in communication connection with the second laser sensor 52. The second laser sensor 52 is arranged on the other side of the polishing head 30. The second laser sensor 52 is used for detecting the polishing depth of the surface to be polished and detecting the surface type of the surface to be polished.

[0085] The second laser sensor 52 and the first laser sensor 51 are respectively located on both sides of the polishing head 30 and can be arranged symmetrically. Figure 8 The laser beam emitted by the second laser sensor 52 is arranged at an angle with the detection direction of the first laser sensor 51, which can be a complementary angle. The second laser sensor 52 generates a detection signal during detection. The control module can calculate the material removal thickness in real time by comparing the signal difference between the first laser sensor 51 and the second laser sensor 52. At the same time, the control module can determine whether the target roughness or the roughening depth is reached according to the result. If not, the polishing frequency or the parameters are automatically increased.

[0086] The second laser sensor 52 scans the surface profile and combines the algorithm to determine the surface type of the current area, such as a flat area, a large-curvature arc area, a small-radius chamfer or a thermal insulation layer joint area. Different surface types require different polishing parameters. For example, if it is a curved surface area, the feed speed needs to be reduced to maintain stable contact. If it is a joint area, the polishing path needs to be encrypted to enhance the edge bonding. If it is a flat area, the efficiency can be improved to pass quickly. Process adjustment is realized to improve the overall polishing quality consistency.

[0087] The laser beam emitted by the second laser sensor 52 is projected to the polished area at an inclined angle. The received reflected light intensity is enhanced with the increase of the polishing depth. When the thermal insulation layer material is removed to a set threshold, the reflected intensity corresponds to the preset roughness standard value.

[0088] Through the cooperative detection of the second laser sensor 52 and the first laser sensor 51, the information blind area of single-point detection is avoided, and the adaptability of the system to complex surfaces is improved. When a high-reflectivity surface is detected, the polishing head 30 speed is automatically reduced to prevent overheating. When a low-reflectivity area is detected, the feed speed is increased to compensate for the processing efficiency. When a sensor has signal abnormalities due to dust shielding, reflectivity changes or other reasons, the other sensor can be used as a redundant reference to assist in determining the true state. Bilateral measurement can also be used to compensate for errors caused by mechanical vibration or attitude deviation, enhancing the stability and reliability of the system in harsh industrial environments.

[0089] The first laser sensor 51 and the second laser sensor 52 can be laser displacement sensors using the principle of triangulation. The first laser sensor 51 emits a laser beam to irradiate the surface to be polished, receives the reflected light, and calculates the distance from the polishing head 30 to the surface. The second laser sensor 52 also emits a laser beam and receives the reflected light, and judges the polishing depth and the surface type of the surface by analyzing the intensity and scattering characteristics of the reflected light. The measurement data of the two laser sensors are transmitted to the control module through data lines for processing. The control module adjusts the feed speed of the driving mechanism 40 according to the distance data of the first laser sensor 51, and maintains the optimal working distance between the polishing head 30 and the surface. At the same time, according to the polishing depth data fed back by the second laser sensor 52, the control module can dynamically adjust the polishing parameters such as the rotation speed and pressure of the polishing head 30 to ensure the uniformity of polishing.

[0090] In addition, the surface type information detected by the second laser sensor 52 can be used to identify different areas of the thermal insulation layer material, and then optimize the polishing strategy. For example, different polishing parameters can be used for areas of the thermal insulation layer with different hardness or thickness.

[0091] The double detection mechanism of the first laser sensor 51 and the second laser sensor 52 greatly improves the accuracy and controllability of the polishing process, effectively solves the problem of difficult to ensure uniformity and consistency in traditional manual polishing, and significantly improves the polishing quality of the combustion chamber shell thermal insulation layer.

[0092] In some embodiments, a third laser sensor can also be provided, installed in front of the polishing head 30, and cooperates with an industrial camera to form a 3D profile scanning system to reconstruct the three-dimensional topographic point cloud data of the area to be polished in real time; identify defects such as pits, bulges, and misaligned seams in advance, predict the polishing allowance, and assist in path planning; compared with single-point laser, line laser can obtain surface area information, and significantly improve the surface recognition ability.

[0093] In some embodiments of the present application, please refer to Figure 7 The driving mechanism 40 includes a rotary driving member 41 and a swing driving member 42, which are arranged on the machine table 10. The polishing head 30 is connected to the driving end of the rotary driving member 41, and the rotary driving member 41 is used to drive the polishing head 30 to rotate around its axis. The swing driving member 42 is connected to the polishing head 30 and is used to drive the polishing head 30 to move along the surface to be polished.

[0094] The rotary driving member 41 is connected to the polishing head 30 to ensure that the rotary torque is directly transmitted to the polishing head 30. The swing driving member 42 can drive the polishing head 30 to move directly, or can drive the polishing head 30 to flip to approach the surface to be polished. The swing driving member 42 can be a servo motor or a screw mechanism, and its stroke range covers the maximum length of the surface to be polished.

[0095] The rotation driving member 41 drives the output shaft to rotate at a set speed after being powered on, and drives the polishing head 30 to rotate synchronously, forming a circumferential cutting motion. The swing driving member 42 drives the rotating polishing head 30 to form an arc-shaped or linear-shaped feeding path on the surface to be polished. The action timing of the rotation driving member 41 and the swing driving member 42 is coordinated by the control module. When the detection mechanism 50 feeds back the distance change, the swing driving member 42 immediately adjusts the moving speed, while the rotation driving member 41 maintains a constant speed, ensuring stable cutting force.

[0096] By independently controlling the rotation speed and moving speed of the polishing head 30, the optimal polishing parameters can be adjusted according to the material properties, so as to obtain a more uniform surface roughness. For workpieces of different shapes and sizes, such as complex curved surfaces or large components, the working parameters of the two driving members can be flexibly adjusted, so that the polishing process is more in line with the actual needs.

[0097] In some embodiments, the control module is in communication connection with the rotation driving member 41 and the swing driving member 42, and both the rotation driving member 41 and the swing driving member 42 are controlled by the control module. The control module can adjust the rotation speed of the rotation driving member 41 and the feeding speed of the swing driving member 42 according to the signal fed back by the detection mechanism 50, to realize adaptive polishing. When it is detected that the distance between the polishing head 30 and the surface to be polished increases, the control module can reduce the feeding speed of the swing driving member 42, so that the polishing head 30 has more time to stay and polish in this area. On the contrary, when the distance decreases, the feeding speed can be appropriately increased, which improves the adaptability to complex irregular surfaces and ensures the consistency and uniformity of the polishing quality.

[0098] The automatic rotation and feeding motion of the polishing head 30 are realized by the rotation driving member 41 and the swing driving member 42, which can continuously and uniformly polish the heat insulation layer on the inner wall of the engine combustion chamber. Thus, the polishing efficiency is improved, and the labor intensity of manual operation is reduced.

[0099] In some embodiments, please refer to Figure 7 The driving mechanism 40 further comprises a first transmission assembly 43, one end of the first transmission assembly 43 being connected to the driving end of the rotation driving member 41, and the other end of the first transmission assembly 43 being connected to the polishing head 30. The rotation driving member 41 drives the polishing head 30 to rotate through the first transmission assembly 43. As Figure 7 and Figure 9 The first transmission assembly 43 mainly adopts a bevel gear structure transmission to ensure power transmission and optimize the spatial layout, so that the driving mechanism 40 realizes multi-stage transmission in a limited space.

[0100] In other embodiments, please refer to Figure 7The driving mechanism 40 further comprises a second transmission assembly 44, one end of the second transmission assembly 44 being connected to the driving end of the swing driving member 42, and the other end of the second transmission assembly 44 being connected to the polishing head 30, the swing driving member 42 driving the polishing head 30 to move along the surface to be polished through the second transmission assembly 44.

[0101] As Figure 7 The second transmission assembly 44 mainly adopts a bevel gear structure and a belt transmission member to cooperate transmission, and a fixed rod structure is arranged to drive the polishing head 30 to move to the surface to be polished for polishing while keeping the rotation of the polishing head 30.

[0102] In some embodiments of the present application, referring to Figures 1 to 4 The engine combustion chamber polishing device 100 further comprises a moving mechanism 60, the moving mechanism 60 comprising a horizontal driving member 61 and a vertical driving member 62, the vertical driving member 62 being connected to the driving end of the horizontal driving member 61, the horizontal driving member 61 being used to drive the vertical driving member 62 to move in the horizontal direction; the driving end of the vertical driving member 62 being connected to the rotary driving member 41 and the swing driving member 42, the vertical driving member 62 being used to drive the rotary driving member 41 and the swing driving member 42 to move in the vertical direction.

[0103] The vertical driving member 62 adopts a linear motion mechanism, the driving end of the vertical driving member 62 being fixed to the mounting base of the rotary driving member 41 and the swing driving member 42 through a rigid connecting member. The movement direction of the vertical driving member 62 is perpendicular to the axis of the polishing head 30. The vertical driving member 62 can adopt a motor and guide rail combination, or a hydraulic cylinder structure.

[0104] The vertical direction refers to the height direction when the polishing mechanism is normally used. The vertical driving member 62 drives the rotary driving member 41 and the swing driving member 42 to move in the vertical direction as a whole, so that the polishing head 30 can approach or move away from the surface to be polished. Through the position adjustment in the vertical direction, the axial deviation caused by the shell mounting error or the inner wall deformation can be eliminated. Before polishing, the initial distance between the polishing head 30 and the inner wall of the engine combustion chamber can be adjusted through the vertical driving member 62, so that the distance between the polishing head 30 and the inner wall falls within the driving distance range of the swing driving member 42, so that the swing driving member 42 drives the polishing head 30 to abut against the inner wall of the shell for polishing.

[0105] The vertical driving member 62 can also be electrically connected to the control module. The control module can control the action of the vertical driving member 62 according to the preset program or the signal fed back by the detection mechanism 50, so as to adjust the vertical position of the polishing head 30. For example, when it is detected that the surface to be polished has a height change, the control module can drive the vertical driving member 62 to adjust the height of the polishing head 30 accordingly, so as to keep a certain distance between the polishing head 30 and the surface to be polished, facilitating the swing driving member 42 to further control the polishing head 30 to approach the inner wall of the shell.

[0106] The vertical driving member 62 enables the distance adjustment of the polishing head 30 in the vertical direction, improving the adaptability of the polishing mechanism to the inner wall of the engine combustion chamber with different heights and shapes. The automatic height adjustment improves the polishing efficiency and reduces the error of manual operation.

[0107] The horizontal direction refers to the direction along the horizontal direction when the mechanism is in use, such as Figure 3 The horizontal driving member 61 can drive the vertical driving member 62 and the polishing head 30 to move in the horizontal direction to enter the engine combustion chamber for polishing. The horizontal driving member 61 can adopt a linear motor or a ball screw structure, and its driving end is rigidly connected with the fixed base of the vertical driving member 62, and the horizontal movement direction is orthogonal to the movement direction of the vertical driving member 62. The horizontal stroke can cover the length of the engine combustion chamber, or be set longer to adapt to engine combustion chambers with different lengths.

[0108] The horizontal driving member 61 drives the vertical driving member 62 and the connected polishing head 30 to move axially along the shell, expanding the working range of the polishing head 30. When polishing the inner wall of a cylindrical shell, the coordinated movement of the horizontal driving member 61 and the vertical driving member 62 can make the polishing head 30 move in the vertical and horizontal directions, ensuring the coverage of the working surface of the inner wall of the shell.

[0109] By setting the horizontal driving member 61, the problem of difficult accurate control of horizontal displacement in manual polishing is solved, and accurate positioning of the polishing head 30 in the full stroke of the shell axis is realized. The coordinated movement of the horizontal driving member 61 and the vertical driving member 62 enables the polishing mechanism to adapt to engine combustion chambers with different lengths, and by controlling the horizontal movement path, it ensures that each area of the surface of the annular thermal insulation layer obtains uniform polishing pressure, avoiding the uneven polishing phenomenon caused by positioning deviation in traditional manual operation, and significantly improving the consistency of the polishing quality of the inner wall of the long cylindrical shell.

[0110] When the control module determines that the polishing area needs to be switched according to the signal of the detection mechanism 50, the horizontal driving member 61 is started to drive the vertical driving member 62 and the polishing head 30 to move along the shell axis. During the movement, the detection mechanism 50 continuously monitors the distance between the polishing head 30 and the inner wall, ensuring that the distance between the polishing head 30 and the inner wall remains stable during the movement.

[0111] The vertical driving member 62 cooperates with the horizontal driving member 61 to enable the polishing head 30 to move flexibly in three-dimensional space, ensuring comprehensive coverage and polishing of complex surfaces. In addition, as Figure 4 , a guide member 45 is also provided to cooperate with the guide rail of the horizontal driving member 61 to guide the horizontal movement of the vertical driving member 62, making the movement more stable.

[0112] In some embodiments, please refer to Figure 3The lengthening member 31 is connected to the driving end of the vertical driving member 62 at one end and connected to the rotary driving member 41 and the swing driving member 42 at the other end.

[0113] By arranging the lengthening member 31, the lengthening member 31 can effectively extend the reachable distance of the polishing head 30, so that the polishing device can be deeply into the engine combustion chamber, especially for the shell with long length.

[0114] In other embodiments, please refer to Figure 6 The lengthening member 31 includes an extension pipe 311 and a connecting pipe 312. The extension pipe 311 is connected to the driving end of the vertical driving member 62 at one end, and the other end of the extension pipe 311 is connected to one end of the connecting pipe 312. The swing driving member 42 is arranged in the extension pipe 311, and the rotary driving member 41 is arranged in the connecting pipe 312. The other end of the connecting pipe 312 is provided with a space 3121 for avoiding the polishing head 30.

[0115] The extension pipe 311 is connected to the driving end of the vertical driving member 62, and the connecting pipe 312 is welded to the end of the extension pipe 311 to form an integral lengthening structure. By arranging the extension pipe 311 and the connecting pipe 312, the technical limitation that the traditional polishing mechanism cannot be adapted to the super-long engine combustion chamber is effectively solved. The composite structure composed of the extension pipe 311 and the connecting pipe 312 realizes the linear expansion of the working length of the polishing head 30 while maintaining the integrity of the driving assembly. The swing driving member 42 is integrated in the extension pipe 311, which not only guarantees the continuity of power transmission, but also avoids occupying external space. The rotary driving member 41 is packaged in the connecting pipe 312, which ensures the stable output of rotary driving force.

[0116] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An engine combustion chamber insulating layer polishing device characterized by comprising: The application relates to an engine combustion chamber heat insulation layer polishing device. The engine combustion chamber heat insulation layer polishing device comprises a machine table, a supporting mechanism arranged on the machine table and used for supporting a workpiece to be polished, a polishing head, and a driving mechanism arranged on the machine table and used for driving the polishing head to rotate and move along a surface to be polished of the workpiece to be polished. The supporting mechanism comprises a clamping piece arranged on the machine table and used for clamping and fixing one end of the workpiece to be polished, and a supporting piece arranged on the machine table and used for supporting the workpiece to be polished. The supporting mechanism further comprises a rotating piece arranged on the machine table and connected with the clamping piece, which is used for driving the clamping piece to rotate so as to drive the workpiece to be polished to rotate. The supporting piece comprises a base and a supporting wheel, the base is provided with two bases which are arranged on the machine table at intervals, at least one supporting wheel is rotatably arranged on each base, and the workpiece to be polished is supported on the supporting wheel and in contact with the supporting wheel. The supporting mechanism further comprises a lifting piece arranged on the machine table and connected with the supporting piece, which is used for adjusting the height of the supporting piece.

2. The engine combustion chamber insulating layer polishing apparatus according to claim 1, wherein The engine combustion chamber heat insulation layer polishing device further comprises a dust collection mechanism arranged on one side of the machine table and a dust collection cover sleeved on the periphery of the polishing head, the dust collection cover is provided with a dust collection port, and the dust collection port is communicated with a suction hole of the dust collection mechanism through a pipeline.

3. The engine combustion chamber thermal barrier coating planing device of claim 2, wherein, The driving mechanism comprises a rotating driving piece and a swinging driving piece, the rotating driving piece and the swinging driving piece are arranged on the machine table, the polishing head is connected with a driving end of the rotating driving piece, and the rotating driving piece is used for driving the polishing head to rotate around an axis thereof.

4. The engine combustion chamber insulating layer polishing apparatus according to claim 3, wherein The swinging driving piece is connected with the polishing head and used for driving the polishing head to move along the surface to be polished.

5. The engine combustion chamber insulating layer polishing apparatus according to claim 2, wherein The engine combustion chamber heat insulation layer polishing device further comprises a moving mechanism, the moving mechanism comprises a horizontal driving piece and a vertical driving piece, the vertical driving piece is connected with a driving end of the horizontal driving piece, the horizontal driving piece is used for driving the vertical driving piece to move in a horizontal direction, the driving end of the vertical driving piece is connected with the rotating driving piece and the swinging driving piece, and the vertical driving piece is used for driving the rotating driving piece and the swinging driving piece to move in a vertical direction.

6. The engine combustion chamber thermal barrier coating planing device of any one of claims 1 to 5, wherein, The engine combustion chamber heat insulation layer polishing device further comprises a detection mechanism and a control module, the detection mechanism is used for detecting a distance between the polishing head and the surface to be polished, the control module is in communication connection with the detection mechanism and the driving mechanism, and the control module is used for adjusting a feeding speed of the driving mechanism according to a signal fed back by the detection mechanism.

7. The engine combustion chamber thermal barrier coating planing device of any one of claims 1 to 5, wherein, The detection mechanism comprises a first laser sensor, the control module is in communication connection with the first laser sensor, the first laser sensor is arranged on one side of the polishing head, and the first laser sensor is used for detecting the distance between the polishing head and the surface to be polished. ​ 8. The engine combustion chamber insulating layer polishing apparatus according to claim 7, wherein ​ ​ 9. The engine combustion chamber insulating layer polishing apparatus according to any one of claims 1 to 5, characterized by ​ 10. The engine combustion chamber insulating layer polishing apparatus according to claim 9, wherein ​

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