Surface treatment equipment and treatment method for titanium alloy rotary table transition piece

Abstract

The invention belongs to the technical field of aeronautical manufacturing part processes, and discloses surface treatment equipment and a treatment method for a titanium alloy rotary table transition piece, which are used for efficiently, automatically and safely carrying out surface chemical liquid pool dip dyeing on the titanium alloy rotary table transition piece and the like. Comprising a protection frame, a gear set, a flywheel assembly, a middle shaft gear assembly, a transmission gear assembly, a servo motor and a servo driver. A motor is connected with a gear for transmission, and the titanium alloy turntable transition piece rotates in electroplating liquid at a constant speed, so that the quality of a coating on the surface of the part is improved, the labor cost is saved, the production efficiency is improved, multiple technical problems in the surface treatment process of the airplane turntable transition piece are solved, and reliable equipment and a treatment method are provided; the problems that in the surface treatment process of the titanium alloy rotary table transition piece, time and labor are consumed, and a plating layer is not uniform are solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of aviation manufacturing parts process, and specifically relates to a surface treatment equipment and method for titanium alloy turntable transition parts, which is used to perform surface treatment on titanium alloy turntable transition parts in a highly efficient, automated and safe manner. Background Art

[0002] Surface treatment of titanium alloy is an important step to improve its performance and appearance, involving a variety of processes and technologies. The surface treatment of titanium alloy involves sandblasting, pickling, grinding and polishing, micro-arc oxidation, electroplating, ion implantation, thermal spraying, coloring and blackening and other surface treatment processes. Due to the low density of titanium, the inertia of flow is small, and the poor fluidity of molten titanium leads to low casting flow rate. The casting temperature is large with the temperature difference between the casting temperature and the mold, the cooling block, and the casting is carried out in a protective atmosphere. It is inevitable that there will be defects such as pores on the surface and inside of the titanium casting, which has a great impact on the quality of the casting. Therefore, the surface treatment of titanium alloy castings is more important than other alloys. Due to the unique physical and chemical properties, such as low thermal conductivity, surface hardness, low elastic modulus, high viscosity, low conductivity, easy oxidation, etc., it brings great difficulty to the surface treatment of titanium alloy. It is difficult to achieve the desired effect by conventional surface treatment methods. Special and dedicated processing methods and processing fixtures must be adopted, and special operating means must be used to perform good surface treatment of titanium alloy. Summary of the invention

[0003] The purpose of the present invention is to provide a surface treatment equipment and method for titanium alloy turntable transition pieces, which solves the problems of time-consuming and labor-intensive surface treatment of titanium alloy turntable transition pieces, uneven coating, etc., and realizes the automation of surface treatment, replacing the traditional manual operation mode.

[0004] In order to achieve the above tasks, the present invention adopts the following technical solutions:

[0005] A surface treatment equipment for a titanium alloy turntable transition piece, comprising: a protection frame, a gear set, a flywheel assembly, a center shaft gear assembly, a transmission gear assembly, a servo motor and a servo driver, wherein:

[0006] The servo motor and servo driver are installed in the protective frame;

[0007] The transmission gear assembly includes a first bearing plate, a second bearing plate, a gear set and a bearing baffle, wherein the first bearing plate and the second bearing plate are arranged opposite to each other, and the first hook and the second hook are fixed to the upper parts of the first bearing plate and the second bearing plate respectively; the gear set is arranged on the outer side of the first bearing plate from top to bottom, and the lower ends of the first bearing plate and the second bearing plate are symmetrically provided with bearing holes, and bearings are installed in the bearing holes and the bearing baffle is assembled; the upper parts of the first bearing plate and the second bearing plate are connected by a plurality of limit columns;

[0008] A middle shaft gear assembly is arranged in the transmission gear assembly, and the middle shaft gear assembly includes a fixed shaft, a sleeve, a bushing, and a clutch gear, wherein: the fixed shaft passes through the axis of the rotating disk of the flywheel assembly, a bushing is arranged outside the fixed shaft, and two ends of the fixed shaft are respectively installed in the bearing holes at the lower ends of the first bearing plate and the second bearing plate; a group of mutually meshing sleeves are installed outside the bushing, wherein one sleeve is coaxially connected with the rotating disk of the flywheel assembly, and the other sleeve is meshed with the clutch gear, and the clutch gear is installed on the outer side of the first bearing plate, located at the end of the fixed shaft, and meshed with the gear set; the output shaft of the servo motor passes through the mounting hole on the upper end of the first bearing plate and is installed with a driving gear, and the driving gear is meshed with the gear set;

[0009] The flywheel assembly comprises two rotating discs and a plurality of push rods, wherein the two rotating discs are coaxially fixed together, and a plurality of mounting cavities are formed on the circumference of the two rotating discs, which are respectively used to fix the plurality of push rods.

[0010] Furthermore, the first hook and the second hook are located above the protective frame, and the lower ends of the first hook and the second hook are fixed on the top of the transmission gear assembly. The first hook and the second hook are used to hang the entire equipment on the surface treatment assembly line, and below them is a surface immersion pool for surface treatment of the titanium alloy turntable transition piece.

[0011] Furthermore, the servo motor is driven by an independent power supply, and a battery compartment is provided in the protective frame for placing the independent power supply; the servo driver is used to control the servo motor, a control panel is provided outside the protective frame, and the servo driver is connected to the control panel.

[0012] Furthermore, weight-reducing grooves are distributed on the second bearing plate.

[0013] Furthermore, the second load-bearing plate is a two-part structure, with a first hinge and a second hinge realizing a movable connection between the two parts; the first hinge and the second hinge are provided with a fixing pin structure for fixing the two parts; through the design of the hinge, the second load-bearing plate is an openable structure, which is convenient for the disassembly and assembly of the titanium alloy turntable transition piece.

[0014] Furthermore, the length of the ejector rod can be adjusted by cooperating between the pin and the positioning hole.

[0015] Furthermore, the push rod is a telescopic rod in the form of a sleeve, including a push rod seat, a push rod support rod, a limit pin, a positioning hole and a rubber head, wherein the push rod seat is fixed in the installation cavity, one end of the push rod support rod is inserted into the push rod seat, and the other end is installed with the rubber head; positioning holes are set on the push rod seat and the push rod support rod, and the position of the push rod support rod is fixed by inserting the limit pin; the overall length of the push rod is adjusted by using the cooperation of the limit pin and different positioning holes; the push rod supports and fixes the product through the rubber head.

[0016] A surface treatment method for a titanium alloy turntable transition piece, comprising:

[0017] Step 1: fix the surface treatment equipment on the hook platform of the surface treatment line through the first hook and the second hook, and place it above the surface immersion pool;

[0018] Step 2: Install the titanium alloy turntable transition piece. Before installation, first adjust the length of each push rod according to the inner diameter of the titanium alloy turntable transition piece, then open the second bearing plate, support the push rod on the inner wall of the titanium alloy turntable transition piece, and then fix the second bearing plate after resetting the opened part of the second bearing plate;

[0019] Step 3: After the titanium alloy turntable transition piece has been pressed and aligned, check the servo motor and servo driver, conduct a power-on test, and after confirming that the servo motor can operate normally, set the speed and process time, and then start the servo motor to drive the titanium alloy turntable transition piece for surface treatment according to the process requirements;

[0020] Step 4. After the treatment is completed, use surface inspection equipment to inspect the surface treatment of the titanium alloy turntable transition part, and check whether the actual surface treatment meets the process requirements by inspecting various process values; if it meets the requirements, shut down the machine, open the second load-bearing plate, loosen the top rod, and remove the processed titanium alloy turntable transition part.

[0021] Compared with the prior art, the present invention has the following technical features:

[0022] The present invention provides a special tooling fixture for the surface treatment of aircraft titanium alloy turntable transition parts, which provides efficient, safe, stable and practical tooling and methods for the surface treatment of aircraft titanium alloy turntable transition parts with complex processes. It solves a series of problems that have been caused by the complexity, high difficulty, high risk factor, high scrap rate and high failure rate of the surface treatment of aircraft titanium alloy turntable transition parts in history, and provides a complete set of special machine tool fixtures, which overcomes many technical difficulties in traditional processes such as the large number of clamping devices, difficult clamping, uneven flipping, etc., and achieves the effects of simple product armor, humanized operation, uniform flipping, stable operation, and easy detection. It greatly improves the processing efficiency and completion. This method mainly achieves the following beneficial effects:

[0023] 1. During batch processing, the turntable transition parts can be quickly installed and unloaded, which greatly reduces the time cost of loading and unloading and improves work efficiency.

[0024] 2. Through the internal support transmission of the top rod, the surface treatment area can be greatly and efficiently increased, which greatly reduces the uneven treatment and omissions during the surface treatment process and improves the qualified rate of the treatment.

[0025] 3. Compared with traditional processing methods, the present invention can greatly reduce the process errors caused by human operation, and the whole process does not require human intervention, which greatly improves the completion of the processing.

[0026] 4. After the surface treatment is completed, the product can be directly inspected by the inspection equipment without disassembling the clamping of the fixture, which improves the process efficiency.

[0027] 5. The load-bearing plate is directly connected by fixing hooks and shafts to prevent vibration and displacement of parts during processing, making the processing process uniform and stable, and increasing the qualified rate and completion degree of product processing.

[0028] This method has low installation cost, convenient use, safe operation, high installation efficiency and convenient disassembly. It overcomes many technical difficulties in traditional processes such as multiple clamping devices, difficult clamping, uneven flipping, etc., and achieves the advantages of simple product armor, humanized operation, uniform flipping, stable operation, and easy detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the tooling hanger of the present invention;

[0030] Figure 2 It is a structural schematic diagram of the first bearing plate and the second bearing plate;

[0031] Figure 3 is a schematic diagram of a flywheel assembly;

[0032] Figure 4 It is a schematic diagram of the structure inside the protection frame;

[0033] Figure 5 This is a structural diagram of the transmission gear assembly.

[0034] Among them: 1 first hook, 2 second hook, 3 protection frame, 4 first hinge, 5 second hinge, 6 gear set, 7 limit column, 8 flywheel assembly, 801 turntable, 802 push rod, 803 installation cavity, 804 positioning hole, 8021 push rod seat, 8022 push rod support rod, 8023 rubber head, 9 middle shaft gear assembly, 901 fixed shaft, 902 sleeve, 903 bushing, 904 clutch gear, 10 transmission gear assembly, 101 first bearing plate, 102 second bearing plate, 103 bearing baffle, 104 weight reduction groove, 105 first hinge, 106 second hinge, 11 control panel, 12 driving gear. DETAILED DESCRIPTION

[0035] Referring to the accompanying drawings, the present invention provides a surface treatment equipment for a titanium alloy turntable transition piece, which is used to clamp and fix the titanium alloy turntable transition piece, including: a first hook 1, a second hook 2, a protection frame 3, a first hinge 4, a second hinge 5, a gear set 6, a limit column 7, a flywheel assembly 8, a middle shaft gear assembly 9, a transmission gear assembly 10 and a servo motor + servo driver, wherein:

[0036] The servo motor + servo driver are installed in a protective frame, wherein the servo motor is driven by an independent power supply, and a battery compartment is provided in the protective frame for placing the independent power supply; the servo driver is used to control the servo motor, and a control panel is provided outside the protective frame, and the servo driver is connected to the control panel;

[0037] The first hook 1 and the second hook 2 are located above the protection frame 3, and the lower ends of the first hook 1 and the second hook 2 are fixed to the top of the transmission gear assembly 10 to ensure the stability of the main structure of the tooling; the first hook 1 and the second hook 2 are used to hang the entire equipment on the surface treatment production line, and below them is a surface immersion pool for surface treatment of the titanium alloy turntable transition piece;

[0038] The transmission gear assembly 10 includes a first bearing plate 101, a second bearing plate 102, a gear set 6 and a bearing baffle 103, wherein the first bearing plate 101 and the second bearing plate 102 are arranged relatively to each other, and the first hook 1 and the second hook 2 are fixed to the upper part of the first bearing plate 101 and the second bearing plate 102 respectively; the gear set 6 is arranged from top to bottom on the outer side of the first bearing plate 101, and the lower ends of the first bearing plate 101 and the second bearing plate 102 are symmetrically provided with bearing holes, and bearings are installed in the bearing holes and the bearing baffle 103 is assembled; the second bearing plate 102 is provided with weight reduction grooves 104 The first load-bearing plate 101 and the second load-bearing plate 102 are connected at the upper part by a plurality of limit columns 7 for limiting and fixing, so as to ensure the stability of the rotation axis direction and resist the displacement activity caused by the rotation axis in the vertical direction; wherein, the second load-bearing plate 102 is a two-part structure, and the two-part structure is movably connected by the first hinge 105 and the second hinge 106. The first hinge 105 and the second hinge 106 are provided with a fixing pin structure for fixing the two-part structure; through the design of the hinge, the second load-bearing plate 102 is an openable structure, which is convenient for the disassembly and assembly of the titanium alloy turntable transition piece;

[0039] A middle shaft gear assembly 9 is arranged in the transmission gear assembly, comprising a fixed shaft 901, a sleeve 902, a bushing 903, and a clutch gear 904, wherein: the fixed shaft 901 passes through the axis of the rotating disk 801 of the flywheel assembly 8, a bushing 903 is arranged outside the fixed shaft 901, and two ends of the fixed shaft 901 are respectively installed in the bearing holes at the lower ends of the first bearing plate 101 and the second bearing plate 102; a group of mutually meshing sleeves 902 are installed outside the bushing 903, wherein one sleeve 902 is coaxially connected with the rotating disk 801 of the flywheel assembly 8, and the other sleeve 902 is meshed with the clutch gear 904, and the clutch gear 904 is installed on the outer side of the first bearing plate 102, located at the end of the fixed shaft 901, and meshed with the gear set 6; the output shaft of the servo motor passes through the mounting hole at the upper end of the first bearing plate 101 and is installed with the drive gear 12, and the drive gear 12 is meshed with the gear set 6;

[0040] The flywheel assembly 8 includes two rotating disks 801 and four push rods 802, wherein the two rotating disks 801 are coaxially fixed together, and four mounting cavities 803 are formed on the circumference thereof, which are respectively used to fix the four push rods 802; the length of the push rod 802 is adjusted by cooperating with the pin and the positioning hole 804; the push rod 802 is a telescopic rod in the form of a sleeve, including a push rod seat 8021, a push rod support rod 8022, a limit pin, a positioning hole 804 and a rubber head 8023, wherein the push rod The rod seat 8021 is fixed in the installation cavity 803, one end of the push rod support rod 8022 is inserted into the push rod seat 8021, and the other end is installed with a rubber head 8023; positioning holes are set on the push rod seat 8021 and the push rod support rod 8022, and the position of the push rod support rod 8022 is fixed by inserting a limit pin; the overall length of the push rod 802 is adjusted by the cooperation of the limit pin and different positioning holes 804; the push rod 803 supports and fixes the product through the rubber head 8023;

[0041] When this solution is in use, the servo motor is operated through the control panel, and the servo motor drives the gear set through the driving gear, thereby driving the flywheel assembly to rotate through the clutch gear and the sleeve, and applying pressure to the titanium alloy turntable transition piece through the push rods in four directions, supporting and pressing the titanium alloy turntable transition piece, and driving the titanium alloy turntable transition piece to rotate; it can well ensure the uniform rotation of the product and the stable operation in all directions. During the rotation process, different positions of the titanium alloy turntable transition piece are successively subjected to surface treatment through the surface immersion tank.

[0042] The application method of this device includes the following steps:

[0043] Step 1: Fix the surface treatment equipment on the hook platform of the surface treatment line through the first hook and the second hook, located above the surface immersion tank. Adjust the equipment according to the on-site usage so that the axial direction of the fixed shaft in the equipment remains horizontal to facilitate the stability of subsequent processing.

[0044] Step 2: Install the titanium alloy turntable transition piece. In this solution, the titanium alloy turntable transition piece is a ring-shaped structure. Before installation, the length of each push rod should be adjusted according to the inner diameter of the titanium alloy turntable transition piece. Then, the second bearing plate is opened by the first hinge and the second hinge. The push rod is supported on the inner wall of the titanium alloy turntable transition piece. After the opened part of the second bearing plate is reset, the second bearing plate is fixed by the fixing pin on the hinge.

[0045] Step 3: After the titanium alloy turntable transition piece has been pressed and aligned, check the servo motor and servo driver, and perform a power-on test according to the servo motor instructions. After confirming that the servo motor can operate normally, set the speed and process time, and then start the servo motor to drive the titanium alloy turntable transition piece for surface treatment according to the process requirements;

[0046] Step 4. After the treatment is completed, use surface inspection equipment to inspect the surface treatment of the titanium alloy turntable transition part, and check whether the actual surface treatment meets the process requirements by inspecting various process values; if it meets the requirements, shut down the machine, open the second load-bearing plate, loosen the top rod, and remove the processed titanium alloy turntable transition part.

[0047] In the case of mass production, the fixture only needs to remove the second load-bearing plate to quickly replace product parts, which greatly improves the processing speed and reduces the processing cost.

[0048] The present invention solves many technical problems in the surface treatment process of aircraft turntable transition parts, provides reliable equipment and treatment methods, and solves the problems of time-consuming and labor-intensive surface treatment, uneven coating, etc. in the surface treatment process of titanium alloy turntable transition parts. The surface treatment automation is realized, replacing the traditional manual operation mode. Through the coordination of the motor and the gear set, the entire system rotates at a uniform speed in the tank liquid, ensuring the uniformity of the surface treatment, which can greatly improve the yield rate, and realize a series of surface treatment effect improvements and process controllability. Through the original design of the clamping and rotating device, the whole process is stable and controllable, ensuring the production effect, and realizing the mass production of various types of parts; by replacing the traditional manual clamping process, labor is saved and production efficiency is ultimately improved.

Claims

1. A surface treatment equipment for titanium alloy turntable transition piece, characterized in that: include: A protection frame, a gear set, a flywheel assembly, a middle shaft gear assembly, a transmission gear assembly, a servo motor and a servo drive, wherein: The servo motor and servo driver are installed in the protective frame; The transmission gear assembly includes a first bearing plate, a second bearing plate, a gear set and a bearing baffle, wherein the first bearing plate and the second bearing plate are arranged opposite to each other, and the first hook and the second hook are fixed to the upper parts of the first bearing plate and the second bearing plate respectively; the gear set is arranged on the outer side of the first bearing plate from top to bottom, and the lower ends of the first bearing plate and the second bearing plate are symmetrically provided with bearing holes, and bearings are installed in the bearing holes and the bearing baffle is assembled; the upper parts of the first bearing plate and the second bearing plate are connected by a plurality of limit columns; A middle shaft gear assembly is arranged in the transmission gear assembly, and the middle shaft gear assembly includes a fixed shaft, a sleeve, a bushing, and a clutch gear, wherein: the fixed shaft passes through the axis of the rotating disk of the flywheel assembly, a bushing is arranged outside the fixed shaft, and two ends of the fixed shaft are respectively installed in the bearing holes at the lower ends of the first bearing plate and the second bearing plate; a group of mutually meshing sleeves are installed outside the bushing, wherein one sleeve is coaxially connected with the rotating disk of the flywheel assembly, and the other sleeve is meshed with the clutch gear, and the clutch gear is installed on the outer side of the first bearing plate, located at the end of the fixed shaft, and meshed with the gear set; the output shaft of the servo motor passes through the mounting hole on the upper end of the first bearing plate and is installed with a driving gear, and the driving gear is meshed with the gear set; The flywheel assembly comprises two rotating discs and a plurality of push rods, wherein the two rotating discs are coaxially fixed together, and a plurality of mounting cavities are formed on the circumference of the two rotating discs, which are respectively used to fix the plurality of push rods.

2. The surface treatment equipment for titanium alloy turntable transition piece according to claim 1 is characterized in that: The first hook and the second hook are located above the protective frame, and the lower ends of the first hook and the second hook are fixed on the top of the transmission gear assembly. The first hook and the second hook are used to hang the entire equipment on the surface treatment assembly line, and below them is a surface immersion pool for surface treatment of the titanium alloy turntable transition piece.

3. The surface treatment equipment for titanium alloy turntable transition piece according to claim 1 is characterized in that: The servo motor is driven by an independent power supply. A battery compartment is arranged in the protection frame for placing the independent power supply. The servo driver is used to control the servo motor. A control panel is arranged outside the protection frame, and the servo driver is connected to the control panel.

4. The surface treatment equipment for titanium alloy turntable transition piece according to claim 1 is characterized in that: Weight-reducing grooves are distributed on the second bearing plate.

5. The surface treatment equipment for titanium alloy turntable transition piece according to claim 1 is characterized in that: The second load-bearing plate is a two-part structure, and the two parts are movably connected through the first hinge and the second hinge; the first hinge and the second hinge are provided with a fixing pin structure for fixing the two parts; Through the design of the hinge, the second load-bearing plate is made into an openable structure, which is convenient for disassembly and assembly of the titanium alloy turntable transition piece.

6. The surface treatment equipment for titanium alloy turntable transition piece according to claim 1, characterized in that: The length of the ejector rod is adjusted by cooperating with the pin and the positioning hole.

7. The surface treatment equipment for titanium alloy turntable transition piece according to claim 1 is characterized in that: The push rod is a telescopic rod in the form of a sleeve, including a push rod seat, a push rod support rod, a limit pin, a positioning hole and a rubber head, wherein the push rod seat is fixed in the installation cavity, one end of the push rod support rod is inserted into the push rod seat, and the other end is installed with the rubber head; positioning holes are set on the push rod seat and the push rod support rod, and the position of the push rod support rod is fixed by inserting the limit pin; the overall length of the push rod is adjusted by using the cooperation of the limit pin and different positioning holes; the push rod supports and fixes the product through the rubber head.

8. A surface treatment method for a titanium alloy turntable transition piece, characterized in that: include: Step 1: fix the surface treatment equipment on the hook platform of the surface treatment line through the first hook and the second hook, and place it above the surface immersion pool; Step 2: Install the titanium alloy turntable transition piece. Before installation, first adjust the length of each push rod according to the inner diameter of the titanium alloy turntable transition piece, then open the second bearing plate, support the push rod on the inner wall of the titanium alloy turntable transition piece, and then fix the second bearing plate after resetting the opened part of the second bearing plate; Step 3: After the titanium alloy turntable transition piece has been pressed and aligned, check the servo motor and servo driver, conduct a power-on test, and after confirming that the servo motor can operate normally, set the speed and process time, and then start the servo motor to drive the titanium alloy turntable transition piece for surface treatment according to the process requirements; Step 4. After the treatment is completed, use surface inspection equipment to inspect the surface treatment of the titanium alloy turntable transition part, and check whether the actual surface treatment meets the process requirements by inspecting various process values; if it meets the requirements, shut down the machine, open the second load-bearing plate, loosen the top rod, and remove the processed titanium alloy turntable transition part.

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