A lathe for processing turbine guide vanes

Abstract

This invention relates to a lathe for machining turbine guide vanes, comprising a rough milling mechanism, a finish milling mechanism, a transfer mechanism, a fixture mechanism, a conveying mechanism, a positioning mechanism, and a gripping mechanism. Through the positioning mechanism in conjunction with the transfer and gripping mechanisms, a preliminary positioning block on the fixture mechanism is connected to a preliminary positioning groove on the positioning mechanism of the rough or finish milling mechanism for preliminary positioning. The clamping assembly on the positioning mechanism clamps the fixture mechanism, creating a quick-release structure between the fixture mechanism and the rough or finish milling mechanisms, resulting in high production efficiency and low production costs. During the clamping process, the precision positioning block, after preliminary positioning, is pushed and connected to the precision positioning groove for precise positioning, leading to high machining accuracy and high product yield. This invention solves the technical problems of low production efficiency, high production costs, easy positioning deviations, and low product yield in existing turbine manufacturing processes.

Description

Technical Field

[0001] This invention relates to the field of turbine finishing technology, and in particular to a lathe for machining turbine guide vanes. Background Technology

[0002] A turbine is a fan in a car or airplane engine that uses exhaust gas to blow fuel vapor into the engine to improve its performance. A turbine is a rotating power machine that converts the energy of a flowing working fluid into mechanical work; it is one of the main components of aircraft engines, gas turbines, and steam turbines. During turbine machining, because the turbine guide vanes are the rotor of a micro-turbine engine compressor involving deep and narrow channels, large twist angles, and variable root fillet machining positions, they must be machined using five-axis linkage. Some believe that using 3+2 fixed-axis machining, with multiple angles, can remove all residual material; however, the results of 3+2 fixed-axis machining are also unsatisfactory and rarely meet requirements.

[0003] Patent document CN109304505B discloses a rough milling method for a three-dimensional impeller, comprising: constructing a three-dimensional model of the three-dimensional impeller using application software; dividing a flow channel into several processing areas based on the surface curvature and / or blade twist angle of the flow channel on the three-dimensional model; analyzing the surface curvature and / or blade twist angle of each processing area to determine the processing angle corresponding to each processing area; setting the processing angle of the tool on the boring machine table to the processing angle corresponding to each processing area; and using the tool with the set processing angle to process the area on the impeller blank corresponding to each processing area, thereby forming the flow channel on the impeller blank and completing the rough milling of the three-dimensional impeller. This invention uses a boring machine table instead of a five-axis CNC machining center to process the impeller blank, reducing the processing cost of the three-dimensional impeller.

[0004] However, in actual use, the inventors found that the material removal in the existing turbine machining process is relatively large. If the machining is completed on a five-axis machining center, the machining cycle is long, the production efficiency is low, and the production cost is high. If the turbine blank is rough milled on a boring machine and then fine milled on a five-axis machining center, the turbine blank needs to be positioned on both the boring machine and the five-axis machining center. This not only takes a long time to position and affects the machining efficiency, but also the two positioning operations are prone to deviation, which affects the accuracy of the product and reduces the product yield. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by incorporating a conveying mechanism, a clamping mechanism, a transport mechanism, a positioning mechanism, and a gripping mechanism. The positioning mechanism works in conjunction with the conveying and gripping mechanisms. The initial positioning block on the clamping mechanism connects to the initial positioning groove on the positioning mechanism of the roughing or finishing milling mechanism for initial positioning. The clamping component on the positioning mechanism clamps the clamping mechanism, creating a quick-release structure between the clamping mechanism and the roughing or finishing milling mechanisms. This results in high production efficiency and low production costs. During the clamping process, the precision positioning block, after initial positioning, is pushed and connected to the precision positioning groove for precise positioning, leading to high machining accuracy and a high product yield. The transport mechanism enables automatic loading and unloading, further improving production efficiency. This solves the problems of low production efficiency, high production costs, easy positioning errors, and low product yield in existing turbine manufacturing processes.

[0006] To address the above technical problems, the following technical solution is adopted: A lathe for machining turbine guide vanes, comprising a rough milling mechanism for rough milling a blank into a rough shape and a finish milling mechanism for finish milling the rough shape into a turbine, and further comprising:

[0007] A conveying mechanism disposed between the rough milling mechanism and the finish milling mechanism; a clamping mechanism detachably connected to the conveying mechanism and used to clamp and position the blank; a conveying mechanism disposed outside the conveying mechanism and used to load and unload the clamping mechanism; a positioning mechanism disposed on the rough milling mechanism and the finish milling mechanism and used to connect and position the clamping mechanism; and a gripping mechanism disposed above the conveying mechanism and used to grip the clamping mechanism and connected to the conveying mechanism or the positioning mechanism.

[0008] The positioning mechanism includes an operating table disposed on the rough milling mechanism and the finish milling mechanism; a preliminary positioning groove disposed on the operating table and cooperating with the preliminary positioning block on the clamping mechanism to perform preliminary radial positioning of the clamping mechanism; a precision positioning groove disposed in the preliminary positioning groove and cooperating with the precision positioning block on the clamping mechanism to further perform precise radial positioning of the clamping mechanism; a shielding component slidably disposed in the preliminary positioning groove for blocking debris; and a clamping component disposed on the operating table and cooperating with the operating table to clamp the clamping mechanism to perform axial positioning of the clamping mechanism.

[0009] Preferably, the conveying mechanism includes a conveyor belt disposed outside the conveying mechanism for conveying the blank and the turbine, a positioning component disposed on the conveyor belt for positioning the blank, and a gripping component disposed above the conveying mechanism for gripping the turbine on the clamping mechanism and the blank on the conveyor belt.

[0010] Preferably, the gripping assembly includes a frame that is movably disposed above the conveying mechanism, a first mounting frame rotatably connected to the frame, a plurality of first gripping arms that are rotatably disposed on the first mounting frame at equal intervals along the circumference of the blank, and a first control element disposed on the frame for controlling the rotation of the first mounting frame and the first gripping arms.

[0011] Preferably, the first control component includes a control plate slidably mounted on the first mounting frame, a first hinge rod mounted on the first gripping arm and slidably connected to a first elongated groove on the control plate, a first elastic element mounted on the first mounting frame and used to force the control plate to slide upward until the first gripping arm closes, a control column movably mounted on the frame, and a connecting rod mounted on the control plate and cooperating with a guide groove on the control column to force the control plate to rotate.

[0012] Preferably, the gripping mechanism includes a second mounting frame rotatably connected to the frame, a plurality of second gripping arms rotatably disposed on the second mounting frame at equal intervals along the circumference of the clamping mechanism, and a second control member disposed on the frame for controlling the rotation of the second mounting frame and the second gripping arms.

[0013] Preferably, the positioning component includes a guide plate that is slidably connected at one end to the positioning groove of the conveyor belt and cooperates with the conveyor belt to force the blank to move and be positioned, an arc-shaped plate connected to the other end of the guide plate and used to position the blank directly below the gripping component, and a second elastic member disposed on the conveyor belt and used to force the guide plate to slide away from the arc-shaped plate.

[0014] Preferably, the shielding assembly includes a shielding block slidably disposed in the initial positioning groove, a drive rod slidably disposed in a groove on the operating table and extending obliquely upward at its upper end to abut against the clamping mechanism, a transmission rod rotatably connected at one end to the lower end of the drive rod and at the other end to the shielding block, and a third elastic member disposed on the operating table for forcing the shielding block to slide until it completely shields the initial positioning groove.

[0015] Preferably, the clamping assembly includes clamping arms rotatably mounted on the operating table at equal intervals along the clamping mechanism, and a driving member mounted on the operating table for driving the clamping arms to rotate simultaneously.

[0016] Preferably, the clamping mechanism is further provided with a pushing component for pushing the precision positioning block out of the precision positioning groove;

[0017] The pushing component includes a sleeve slidably disposed on the clamping mechanism and sleeved on the precision positioning block, and a fourth elastic element disposed on the clamping mechanism and used to force the sleeve to slide towards the operating table.

[0018] Preferably, the lathe for machining turbine guide vanes further includes a cleaning mechanism disposed above the conveying mechanism for cleaning the clamping mechanism and the turbine, and a housing disposed outside the rough milling mechanism, the finish milling mechanism, the cleaning mechanism, the conveying mechanism and the clamping mechanism.

[0019] The beneficial effects of this invention are:

[0020] (1) In this invention, by setting up a conveying mechanism, automatic loading and unloading can be achieved, thereby improving production efficiency. By setting up a positioning mechanism in conjunction with the conveying mechanism and the gripping mechanism, when in use, the initial positioning block is connected to the initial positioning groove on the positioning mechanism of the rough milling mechanism or the fine milling mechanism for initial positioning. The clamping component can clamp the fixture mechanism so that the fixture mechanism and the rough milling mechanism and the fine milling mechanism are quick-release structures, resulting in high production efficiency and low production cost. During the clamping process of the clamping component, the precision positioning block is pushed and connected to the precision positioning groove under the condition of initial positioning to achieve precise positioning, resulting in high processing accuracy and high product yield.

[0021] (2) In this invention, the shielding component includes a shielding block slidably disposed in the preliminary positioning groove, a drive rod slidably disposed in the slide groove on the operating table and extending obliquely upward at its upper end to abut against the clamping mechanism, a transmission rod rotatably connected at one end to the lower end of the drive rod and at the other end to the shielding block, and a third elastic element disposed on the operating table to force the shielding block to slide until it completely shields the preliminary positioning groove. By the drive rod cooperating with the transmission rod, the clamping mechanism pushes the shielding block to slide during the downward movement, thereby allowing the preliminary positioning block to connect to the preliminary positioning groove. The structure is simple and ingenious. By setting the third elastic element, the shielding block can be forced to automatically rebound to automatically shield the preliminary positioning groove, and the drive rod can be forced to reset with the transmission rod, which is convenient for the next connection drive.

[0022] (3) The present invention uses the same clamping mechanism to drive the product transfer, and cooperates with the same positioning mechanism on different machine tools to realize that the product roughing and finishing processes use the same reference. This solves the problem that different positioning references lead to more machining allowance in roughing and removal in finishing, thus avoiding the phenomenon of product scrapping caused by machining errors under different references.

[0023] (4) By separating the roughing and finishing processes and using the same reference for both processes, the present invention greatly reduces the cutting allowance for finishing, improves production efficiency, and significantly reduces processing costs.

[0024] In summary, this equipment boasts high production efficiency, low production cost, accurate positioning, and high product yield, making it particularly suitable for the field of turbine precision machining technology. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 A perspective view of a lathe for machining turbine guide vanes provided by the present invention.

[0027] Figure 2 This is a schematic diagram of the structure of the conveying mechanism, transporting mechanism, and gripping mechanism provided by the present invention.

[0028] Figure 3 Provided by the present invention Figure 2 A magnified view of a portion of point A in the middle.

[0029] Figure 4 This is a schematic diagram of the gripping component and gripping mechanism provided by the present invention.

[0030] Figure 5 An exploded view of the gripping component provided by the present invention.

[0031] Figure 6 A schematic diagram of the control column provided by the present invention.

[0032] Figure 7 A top view of the gripping component and gripping mechanism provided by the present invention.

[0033] Figure 8 Provided by the present invention Figure 7 Sectional view at point B along the middle.

[0034] Figure 9-10 Provided by the present invention Figure 8 Diagram of the control process of the first control component.

[0035] Figure 11 This is a schematic diagram of the clamping mechanism provided by the present invention.

[0036] Figure 12 A cross-sectional view of the clamping mechanism provided by the present invention.

[0037] Figure 13 A perspective view of the positioning mechanism provided by the present invention.

[0038] Figure 14 This is a top view of the positioning mechanism provided by the present invention.

[0039] Figure 15 Provided by the present invention Figure 14 Sectional view at point C along the middle.

[0040] Figure 16-18 This is a process diagram of the positioning mechanism and positioning fixture mechanism provided by the present invention. Detailed Implementation

[0041] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0042] Example 1

[0043] like Figure 1-18 As shown, a lathe for machining turbine guide vanes includes a rough milling mechanism 6 for rough milling a blank into a rough shape and a finish milling mechanism 7 for finish milling the rough shape into a turbine. It also includes:

[0044] The following components are also present: a conveying mechanism 1 located between the rough milling mechanism 6 and the finish milling mechanism 7; a clamping mechanism 2 detached from and connected to the conveying mechanism 1 for clamping and positioning blanks; a conveying mechanism 3 located outside the conveying mechanism 1 for loading and unloading the clamping mechanism 2; a positioning mechanism 4 located on the rough milling mechanism 6 and the finish milling mechanism 7 for connecting the positioning clamping mechanism 2; and a gripping mechanism 5 located above the conveying mechanism 1 for gripping the clamping mechanism 2 connected to the conveying mechanism 1 or the positioning mechanism 4.

[0045] The positioning mechanism 4 includes an operating table 41 mounted on the rough milling mechanism 6 and the finish milling mechanism 7; a preliminary positioning groove 42 mounted on the operating table 41 and cooperating with the preliminary positioning block 21 on the fixture mechanism 2 to perform preliminary radial positioning of the fixture mechanism 2; a precision positioning groove 43 mounted in the preliminary positioning groove 42 and cooperating with the precision positioning block 22 on the fixture mechanism 2 to further perform precise radial positioning of the fixture mechanism 2; a shielding component 44 slidably mounted in the preliminary positioning groove 42 to block debris; and a clamping component 45 mounted on the operating table 41 and cooperating with the operating table 41 to clamp the fixture mechanism 2 to perform axial positioning of the fixture mechanism 2.

[0046] In this embodiment, by setting up a positioning mechanism 4 in conjunction with a conveying mechanism 1 and a gripping mechanism 5, the clamping mechanism 2 is designed to be quick-released from the rough milling mechanism 6 and the fine milling mechanism 7, resulting in high production efficiency and low production cost. Furthermore, the clamping mechanism 2 is designed to be accurately positioned after being disassembled and connected from the rough milling mechanism 6 and the fine milling mechanism 7, resulting in a high product yield. The conveying mechanism 3 enables automatic loading and unloading, further improving production efficiency.

[0047] In detail, firstly, the conveying mechanism 3 conveys the blank to the fixture mechanism 2. Then, through the conveying mechanism 1 and the gripping mechanism 5, the preliminary positioning block 21 on the fixture mechanism 2 with the blank is connected to the preliminary positioning groove 42 on the positioning mechanism 4 of the rough milling mechanism 6 for preliminary positioning. During the clamping assembly 45 clamping the fixture mechanism 2, the precision positioning block 22 is pushed and connected to the precision positioning groove 43 after preliminary positioning to achieve precise positioning. Then, the rough milling mechanism 6 rough mills the blank into a rough. Next, through the conveying mechanism 1 and the gripping mechanism 5, the fixture mechanism 2 with the rough blank on the rough milling mechanism 6 is connected to the positioning mechanism 4 on the precision milling mechanism 7 for precise positioning. Then, the precision milling mechanism 7 finishes milling the rough blank into a turbine. Finally, through the conveying mechanism 1 and the gripping mechanism 5, the fixture mechanism 2 with the turbine on the precision milling mechanism 7 is conveyed to the conveying mechanism 3. Then, the turbine on the fixture mechanism 2 is removed through the conveying mechanism 3, completing the processing.

[0048] It should be noted that the specific structure of the transmission mechanism 1 is not limited; the following is only one structure for reference, for example:

[0049] The conveying mechanism 1 includes a slide rail and multiple sliders 12 that are slidably disposed on the slide rail. The sliders 12 are provided with connecting grooves 121 for connecting the initial positioning block 21. This not only realizes the disassembly and connection between the clamping mechanism 2 and the conveying mechanism 1, but also positions the clamping mechanism 2, making it easy for the gripping mechanism 5 to grip the clamping mechanism 2 and connect and position it on the positioning mechanism 4.

[0050] Furthermore, such as Figure 2-10 As shown, the conveying mechanism 3 includes a conveyor belt 31 disposed outside the conveying mechanism 1 for conveying the blank and the turbine, a positioning component 32 disposed on the conveyor belt 31 for positioning the blank, and a gripping component 33 disposed above the conveying mechanism 1 for gripping the turbine on the gripping fixture mechanism 2 and the blank on the conveyor belt.

[0051] In this embodiment, by setting up a conveyor belt 31 in conjunction with a positioning component 32 and a gripping component 33, the blank material can be accurately fed. The gripping component 33 grips the turbine and the conveyor belt 31 to facilitate the unloading of the turbine.

[0052] In detail, during the feeding process, the blank is positioned by the positioning component 32 during the conveyor belt 31, so that the gripping component 33 can grip the blank onto the clamping mechanism 2 for feeding. During the unloading process, the gripping mechanism 5 grips the turbine on the clamping mechanism 2 onto the conveyor belt 31, and then outputs it through the conveyor belt 31.

[0053] Furthermore, such as Figure 4-5As shown, the gripping assembly 33 includes a frame 331 that is movably mounted above the conveying mechanism 1, a first mounting frame 332 that is rotatably connected to the frame 331, a plurality of first gripping arms 333 that are rotatably mounted on the first mounting frame 332 at equal intervals along the circumference of the blank, and a first control member 34 mounted on the frame 331 for controlling the rotation of the first mounting frame 332 and the first gripping arms 333.

[0054] In this embodiment, the gripping function of the gripping mechanism 5 is realized by setting the first control element 34 to control the first gripping arm 333 and the first mounting bracket 332 to cooperate with each other.

[0055] In detail, when the blank is fed, the frame 331 first moves downward so that multiple first gripping arms 333 are positioned around the blank. Then, the first control unit 34 controls the multiple first gripping arms 333 to rotate simultaneously and grip the blank. Next, the frame 331 moves upward so that the blank is removed from the conveyor belt 31. Then, the first control unit 34 controls the first mounting frame 332 to rotate until the blank is directly above the furniture mechanism. Then, the frame 331 can move downward to place the blank on the clamping mechanism 2. Finally, the first control unit 34 controls the multiple first gripping arms 333 to rotate simultaneously to release the blank, completing the feeding process.

[0056] It should be noted that the middle part of the first mounting frame 332 is rotatably connected to the frame 331, and the first gripping arm 333 is set at both ends of the first mounting frame 332, so that the gripping mechanism 5 can simultaneously grip the blank on the conveyor belt and the turbine on the clamping mechanism 2, thereby improving the loading and unloading efficiency.

[0057] Furthermore, such as Figure 5-10 As shown, the first control unit 34 includes a control plate 341 that is slidably mounted on the first mounting frame 332, a first hinge rod 342 that is mounted on the first gripping arm 333 and slidably connected to the first elongated groove 3411 on the control plate 341, a first elastic member 343 that is mounted on the first mounting frame 332 and is used to force the control plate 341 to slide upward until the first gripping arm 333 closes, a control column 344 that is movably mounted on the frame 331, and a connecting rod 345 that is mounted on the control plate 341 and cooperates with the guide groove 3441 on the control column 344 to force the control plate 341 to rotate.

[0058] In this embodiment, by setting the connecting rod 345 in conjunction with the guide groove 3441 on the control column 344, the first mounting bracket 332 is forced to rotate with the control plate 341. By setting the first hinge rod 342 in conjunction with the first elongated groove 3411 and the first elastic element 343, the opening and closing of the multiple first gripping arms 333 can be controlled.

[0059] In detail, during feeding, the control column 344 first moves downward. The guide groove 3441, in conjunction with the connecting rod 345, forces the first mounting bracket 332 to rotate with the control plate 341 until the multiple first gripping arms 333 are directly above the blank. Then, the guide groove 3441, in conjunction with the connecting rod 345, forces the control plate 341 to move downward, compressing the first elastic element 343. Simultaneously, the first elongated groove 3411, in conjunction with the first hinge rod 342, forces the multiple first gripping arms 333 to open up to each other. Then, the frame 331 moves downward until the multiple first gripping arms 333 are around the blank. The control column 344... As the first elastic element 343 moves upward, it recovers its deformation, forcing the control plate 341 to slide upward and drive the first gripping arm 333 to close and grasp the blank. Then, the frame 331 moves upward and picks up the blank. The control column 344 moves downward, and the guide groove 3441, in conjunction with the connecting rod 345, forces the first mounting bracket 332 to rotate with the control plate 341 until multiple blanks are located directly above the clamping mechanism 2. Finally, the frame 331 moves downward until the blank abuts against the clamping mechanism 2. The control column 344 moves downward again, forcing the control plate 341 to move downward and drive the multiple first gripping arms 333 to open and grasp the blank.

[0060] It should be noted that the guide groove 3441 includes a first guide section 34411 that moves downward with the control column 344 to force the first mounting bracket 332 to rotate 90°, a second guide section 34412 that moves upward with the control column 344 to force the first mounting bracket 332 to rotate 90°, and a third guide section 34413 disposed between the first guide section 34411 and the second guide section 34412. The third guide section 34413 is used to guide the connecting rod 345 to slide into the first guide section 34411 when the control column 344 moves downward, and to guide the connecting rod 345 to slide into the second guide section 34412 when the control column 344 moves upward. This allows the first mounting bracket 332 to rotate 90° and be positioned between the conveyor belt 31 and the conveying mechanism 1 when the control column 344 moves upward, thus avoiding interference between the gripping component 33 and the conveyor belt 31 and the conveying mechanism 1.

[0061] Furthermore, such as Figure 4 As shown, the gripping mechanism 5 includes a second mounting frame 51 rotatably connected to the frame 331, a plurality of second gripping arms 52 rotatably mounted on the second mounting frame 51 at equal intervals along the circumference of the clamping mechanism 2, and a second control member 53 mounted on the frame 331 for controlling the rotation of the second mounting frame 51 and the second gripping arms 52.

[0062] In this embodiment, the gripping function of the gripping mechanism 5 is realized by setting the second control member 53 to control the second gripping arm 52 and the second mounting bracket 51 to cooperate with each other. By installing the second mounting bracket 51 on the frame 331, the driving source can be reduced and the cost of the instrument can be reduced.

[0063] In detail, when the clamping mechanism 2 is connected to the positioning mechanism 4, firstly, the frame 331 moves downward so that multiple second gripping arms 52 are located around the clamping mechanism 2. Then, the second control unit 53 controls the multiple second gripping arms 52 to rotate simultaneously and grip the clamping mechanism 2. Next, the frame 331 moves upward so that the clamping mechanism 2 is disengaged from the conveying mechanism 1. Then, the second control unit 53 controls the second mounting bracket 51 to rotate until the clamping mechanism 2 is directly above the positioning mechanism 4. Then, the frame 331 can move downward to install the clamping mechanism 2 on the positioning mechanism 4. Finally, the second control unit 53 controls the multiple second gripping arms 52 to rotate simultaneously and release the clamping mechanism 2, completing the connection.

[0064] It should be noted that the specific structure of the second control component 53 is not limited. Preferably, the second control component 53 has the same structure as the first control component 34, which facilitates production, installation, maintenance and replacement, while reducing the use of drive sources and reducing equipment costs.

[0065] Furthermore, such as Figure 3 As shown, the positioning component 32 includes a guide plate 321 that is slidably connected at one end to the positioning groove 311 of the conveyor belt 31 and cooperates with the conveyor belt 31 to force the blank to move and be positioned; an arc plate 322 connected to the other end of the guide plate 321 and used to position the blank directly below the gripping component 33; and a second elastic member 323 disposed on the conveyor belt 31 and used to force the guide plate 321 to slide away from the arc plate 322.

[0066] In this embodiment, by setting the guide plate 321 in conjunction with the arc plate 322 and the positioning groove 311, the blank can be positioned directly below the gripping component 33. By setting the second elastic element 323, the guide plate 321 is forced to slide away from the arc plate 322, so as to avoid interference between the guide plate 321 and the arc plate 322 when the gripping component 33 grips and outputs the turbine.

[0067] In detail, when the conveyor belt 31 conveys the blank to the underside of the gripping assembly 33, it works with the guide plate 321 to force the blank to move towards the arc plate 322. After the blank moves into the arc plate 322 and is positioned, the blank pushes the guide plate 321 through the arc plate 322 to compress the second elastic element 323 and move downwards towards the gripping mechanism 5. When the blank moves directly under the gripping assembly 33, the positioning groove restricts the movement of the guide plate 321 and the arc plate 322, thereby positioning the blank directly under the gripping assembly 33. When the gripping assembly picks up the blank, the second elastic element 323 restores its deformation to push the guide plate 321 and the arc plate 322 away from the direction directly under the gripping assembly 33. Thus, when the gripping assembly 33 picks up the produced turbine output and sends it to the conveyor belt 31, interference between the gripping assembly 33 and the guide plate 321 and the arc plate 322 is avoided.

[0068] It should be noted that there are two guide plates 321. The two guide plates 321 are respectively connected to the two ends of the arc plate 322. The connection is stable and the positioning effect is good. At this time, the arc plate 322 can position the blank in the middle of the conveyor belt 31, avoiding interference between the gripping component 33 and the two sides of the conveyor belt 31 when gripping the blank.

[0069] Furthermore, such as Figure 11-18 As shown, the shielding assembly 44 includes a shielding block 441 slidably disposed in the preliminary positioning groove 42, a drive rod 442 slidably disposed in the slide groove on the operating table 41 and extending obliquely upward at its upper end to abut against the clamping mechanism 2, a transmission rod 443 rotatably connected at one end to the lower end of the drive rod 442 and rotatably connected at the other end to the shielding block 441, and a third elastic member 444 disposed on the operating table 41 and used to force the shielding block 441 to slide until it completely shields the preliminary positioning groove 42.

[0070] In this embodiment, by setting the drive rod 442 in conjunction with the transmission rod 443, the clamping mechanism 2 pushes the blocking block 441 to slide during the downward movement, thereby allowing the preliminary positioning block 21 to be connected to the preliminary positioning groove 42. The structure is simple and ingenious. By setting the third elastic element 444, the blocking block 441 can be forced to automatically rebound to automatically block the preliminary positioning groove 42, and the drive rod 442 can be forced to reset with the transmission rod 443, which is convenient for the next connection drive.

[0071] In detail, when the clamping mechanism 2 moves downward, the clamping mechanism 2 pushes the drive rod 442 to slide downward at an angle, causing the transmission rod 443 to rotate, which in turn pulls the blocking block 441 to slide open the preliminary positioning groove 42 and compress the third elastic element 444. When the clamping mechanism 2 moves upward, the third elastic element 444 restores its deformation, forcing the blocking block 441 to slide and causing the drive rod 442 to reset with the transmission rod 443 until the blocking block 441 completely blocks the preliminary positioning groove 42.

[0072] It should be noted that the upper end of the drive rod 442 is provided with a fillet (e.g., a radius) to reduce wear between the drive rod 442 and the clamping mechanism 2. Figure 16 As shown), the preliminary positioning block 21 and / or the preliminary positioning groove 42 are provided with a first chamfer or a first fillet for guiding the connection, and the precision positioning block 22 and / or the precision positioning groove 43 are provided with a second chamfer or a second fillet for guiding the connection (as shown). Figure 11 (as shown);

[0073] In addition, the preliminary positioning block 21 and / or the blocking block 441 are provided with a third chamfer or third fillet for guiding connection (e.g. Figure 11As shown), this allows the preliminary positioning block 21 to push the blocking block 441 to continue sliding through the third chamfer or third rounded corner when the drive rod 442 slides to the outside of the clamping mechanism 2. This ensures that the blocking block 441 always abuts against the preliminary positioning block 21, preventing debris from entering the preliminary positioning groove 42 through the gap between the two, and also reduces the production accuracy of the drive rod 442, making production and installation easier.

[0074] Furthermore, such as Figure 13-18 As shown, the clamping assembly 45 includes clamping arms 451 that are rotatably mounted on the operating table 41 at equal intervals along the clamping mechanism 2, and a driving member 452 mounted on the operating table 41 for driving the clamping arms 451 to rotate simultaneously.

[0075] In this embodiment, by setting a clamping arm 451 to push the clamping mechanism 2 to move towards the operating table 41, the clamping effect of the clamping mechanism 2 is achieved.

[0076] In detail, when the clamping mechanism 2 is gripped onto the positioning mechanism 4 by the gripping mechanism 5 and the preliminary positioning block 21 is connected to the preliminary positioning groove 42, the clamping arm 451 rotates towards the clamping mechanism 2 and pushes the precision positioning block 22 to move downward with the clamping mechanism 2 and connect to the precision positioning groove 43, until the preliminary positioning block 21 abuts against the bottom of the preliminary positioning groove 42, thus completing the clamping and fixing effect.

[0077] It should be noted that this application does not limit the specific structure of the drive component 452; the following is only one structure for reference, for example:

[0078] The driving component 452 includes a telescopic rod 4521 disposed on the operating table 41, a second elongated groove 4522 disposed on the telescopic rod 4521, and a second hinge rod 4523 disposed on the clamping arm 451 and hinged to the second elongated groove 4522. When the telescopic rod 4521 extends or retracts, the second elongated groove 4522 cooperates with the second hinge rod 4523 to force the clamping arm 451 to clamp the clamping mechanism 2.

[0079] Furthermore, such as Figure 11-12 As shown, the clamping mechanism 2 is also provided with a pushing component 23 for pushing the precision positioning block 22 out of the precision positioning groove 43;

[0080] The pushing component 23 includes a sleeve 231 that is slidably disposed on the clamping mechanism 2 and sleeved on the precision positioning block 22, and a fourth elastic element 232 disposed on the clamping mechanism 2 and used to force the sleeve 231 to slide toward the operating table 41.

[0081] In this embodiment, by setting the sleeve 231 in conjunction with the fourth elastic element 232, it is possible to push the precision positioning block 22 away from the precision positioning groove 43, thereby avoiding the large squeezing force between the precision positioning block 22 and the precision positioning groove 43 caused by the gripping mechanism 5 gripping the clamping mechanism 2, which would result in greater wear and inaccurate positioning. At the same time, it is possible to protect the outer surface of the precision positioning block 22, so as to prevent the precision positioning block 22 from being easily worn when the clamping mechanism 2 separates from the positioning mechanism 4, thereby preventing inaccurate positioning.

[0082] In detail, during the clamping process of clamping the fixture mechanism 2 by clamping component 45, operating table 41 forces sleeve 231 to compress fourth elastic element 232 and slide it into the interior of fixture mechanism 2, thereby allowing the precision positioning block 22 to be connected to precision positioning groove 43. When clamping component 45 releases the clamping effect, fourth elastic element 232 returns to its original deformation, and sleeve 231 pushes fixture mechanism 2 upward until precision positioning block 22 disengages from precision positioning groove 43, thereby allowing fixture mechanism 2 to be easily removed from positioning mechanism 4 by gripping mechanism 5.

[0083] It should be noted that the first elastic element 343, the second elastic element 323, the third elastic element 444, and the fourth elastic element 232 can be helical springs or leaf springs, etc., and their installation methods are all existing technologies, which will not be described in detail here.

[0084] Furthermore, such as Figure 1 As shown, the lathe for machining turbine guide vanes also includes a cleaning mechanism 8 disposed above the transfer mechanism 1 for cleaning the fixture mechanism 2 and the turbine, and a housing disposed outside the rough milling mechanism 6, the finish milling mechanism 7, the cleaning mechanism 8, the transfer mechanism 1 and the fixture mechanism 2.

[0085] In this embodiment, by setting up a cleaning mechanism 8, residual debris is avoided on the clamping mechanism 2 after the turbine is unloaded by the conveying mechanism 3, thereby avoiding inaccurate positioning caused by debris during later use and affecting the processing accuracy.

[0086] By installing an outer casing, the safety of the processing is ensured, and leakage of debris, coolant, and cleaning fluid from the equipment is prevented during processing.

[0087] In detail, during the process of conveying the turbine-equipped clamping mechanism 2 on the precision milling mechanism 7 to the conveying mechanism 3 through the conveying mechanism 1 and the gripping mechanism 5, the cleaning mechanism 8 can clean the turbine-equipped clamping mechanism 2 to avoid debris residue.

[0088] The entire device is enclosed by an outer shell, which prevents workers from being injured during processing when the rough milling mechanism 6, finish milling mechanism 7, and cleaning mechanism 8 are in use. At the same time, the outer shell protects the debris, coolant, and cleaning fluid inside the device for unified collection, preventing them from leaking into the workshop and becoming difficult to collect and clean.

[0089] It should be noted that the cleaning mechanism 8 itself and its installation method are existing technologies, and will not be described in detail here;

[0090] In addition, the outer casing is not shown in the attached drawings, but in reality, the outer casing is located outside the rough milling mechanism 6, the fine milling mechanism 7, the cleaning mechanism 8, the conveying mechanism 1, and the clamping mechanism 2.

[0091] Work process:

[0092] First, the conveying mechanism 3 conveys the blank to the clamping mechanism 2, and then the clamping mechanism 2 with the blank is connected to the positioning mechanism 4 of the rough milling mechanism 6 for precise positioning through the conveying mechanism 1 and the gripping mechanism 5. Then, the blank is rough milled into a rough blank by the rough milling mechanism 6.

[0093] Next, the clamping mechanism 2 with the blank on the rough milling mechanism 6 is connected to the positioning mechanism 4 of the fine milling mechanism 7 for precise positioning through the conveying mechanism 1 and the gripping mechanism 5. Then, the blank is finely milled into a turbine by the fine milling mechanism 7.

[0094] Finally, the clamping mechanism 2 with a turbine on the milling mechanism 7 is conveyed to the conveying mechanism 3 by the conveying mechanism 1 and the gripping mechanism 5, and then the turbine on the clamping mechanism 2 is removed by the conveying mechanism 3 to complete the processing.

[0095] In the description of this invention, it should be understood that the terms "front and back", "left and right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0096] Of course, those skilled in the art should understand that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be understood as a limitation on the quantity.

[0097] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art under the technical guidance of the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A lathe for machining turbine guide vanes, comprising a rough milling mechanism for rough milling a blank into a rough shape and a finish milling mechanism for finish milling the rough shape into a turbine, characterized in that, Also includes: A conveying mechanism disposed between the rough milling mechanism and the finish milling mechanism; a clamping mechanism detachably connected to the conveying mechanism and used to clamp and position the blank; a conveying mechanism disposed outside the conveying mechanism and used to load and unload the clamping mechanism; a positioning mechanism disposed on the rough milling mechanism and the finish milling mechanism and used to connect and position the clamping mechanism; and a gripping mechanism disposed above the conveying mechanism and used to grip the clamping mechanism and connected to the conveying mechanism or the positioning mechanism. The positioning mechanism includes an operating table disposed on the rough milling mechanism and the finish milling mechanism; a preliminary positioning groove disposed on the operating table and cooperating with the preliminary positioning block on the clamping mechanism to perform preliminary radial positioning of the clamping mechanism; a precision positioning groove disposed in the preliminary positioning groove and cooperating with the precision positioning block on the clamping mechanism to further perform precise radial positioning of the clamping mechanism; a shielding component slidably disposed in the preliminary positioning groove for blocking debris; and a clamping component disposed on the operating table and cooperating with the operating table to clamp the clamping mechanism to perform axial positioning of the clamping mechanism. The conveying mechanism includes a conveyor belt disposed outside the conveying mechanism for conveying the blank and the turbine, a positioning component disposed on the conveyor belt for positioning the blank, and a gripping component disposed above the conveying mechanism for gripping the turbine on the clamping mechanism and the blank on the conveyor belt. The gripping assembly includes a frame that is vertically movable above the conveying mechanism, a first mounting frame rotatably connected to the frame, a plurality of first gripping arms that are rotatably mounted on the first mounting frame at equal intervals along the circumference of the blank, and a first control element mounted on the frame for controlling the rotation of the first mounting frame and the first gripping arms. The first control component includes a control plate that is slidably mounted on the first mounting frame, a first hinge rod that is mounted on the first gripping arm and slidably connected to a first elongated groove on the control plate, a first elastic element that is mounted on the first mounting frame and used to force the control plate to slide upward until it drives the first gripping arm to close, a control column that is movably mounted on the frame, and a connecting rod that is mounted on the control plate and cooperates with a guide groove on the control column to force the control plate to rotate. The shielding assembly includes a shielding block slidably disposed in the initial positioning groove, a drive rod slidably disposed in a groove on the operating table and extending obliquely upward at its upper end to abut against the clamping mechanism, a transmission rod rotatably connected at one end to the lower end of the drive rod and at the other end to the shielding block, and a third elastic member disposed on the operating table for forcing the shielding block to slide until it completely shields the initial positioning groove.

2. The lathe for machining turbine guide vanes according to claim 1, characterized in that, The gripping mechanism includes a second mounting frame rotatably connected to the frame, a plurality of second gripping arms rotatably mounted on the second mounting frame at equal intervals along the circumference of the clamping mechanism, and a second control element mounted on the frame for controlling the rotation of the second mounting frame and the second gripping arms.

3. The lathe for machining turbine guide vanes according to claim 1, characterized in that, The positioning component includes a guide plate that is slidably connected at one end to the positioning groove of the conveyor belt and cooperates with the conveyor belt to force the blank to move and be positioned, an arc-shaped plate connected to the other end of the guide plate and used to position the blank directly below the gripping component, and a second elastic member disposed on the conveyor belt and used to force the guide plate to slide away from the arc-shaped plate.

4. The lathe for machining turbine guide vanes according to claim 1, characterized in that, The clamping assembly includes clamping arms that are rotatably mounted on the operating table at equal intervals along the clamping mechanism, and a driving member mounted on the operating table for driving the clamping arms to rotate simultaneously.

5. A lathe for machining turbine guide vanes according to claim 1, characterized in that, The clamping mechanism is also provided with a pushing component for pushing the precision positioning block out of the precision positioning slot; The pushing component includes a sleeve slidably disposed on the clamping mechanism and sleeved on the precision positioning block, and a fourth elastic element disposed on the clamping mechanism and used to force the sleeve to slide towards the operating table.

6. A lathe for machining turbine guide vanes according to any one of claims 1-5, characterized in that, The lathe for machining turbine guide vanes also includes a cleaning mechanism disposed above the conveying mechanism for cleaning the clamping mechanism and the turbine, and a housing disposed outside the rough milling mechanism, the finish milling mechanism, the cleaning mechanism, the conveying mechanism and the clamping mechanism.

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