Automatic turbine blade rivet head chamfering device

Abstract

The utility model belongs to the technical field of rivet head chamfering, particularly relates to an automatic turbine blade rivet head chamfering device, and aims to solve the problems of low working efficiency and high production cost in the background technology, the following scheme is provided: the automatic turbine blade rivet head chamfering device comprises a chamfering table, and the inner wall of the top of the chamfering table is fixedly connected with a servo motor through a bolt; and an output shaft of the servo motor is connected with a rotary tray. According to the utility model, the servo motor drives the rotating tray to rotate, and the air cylinder is utilized to push the positioning clamping plate to clamp the rivet heads to provide stability, the device can continuously perform chamfering operation on each rivet head, the pause interval time is short, the chamfering efficiency of the rivet heads is greatly improved, the rivet heads can slide into the rotating tray from the feeding slide way, and the efficiency of chamfering the rivet heads is greatly improved. And under the blocking effect of a triangular plate, the rivet heads can be automatically separated from the rotating material disc and slide into the discharging sliding way, automatic feeding and discharging of the rivet heads are achieved, manpower is saved, and the production cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of rivet head chamfering, in particular to an automatic chamfering device for turbine blade rivet heads. Background Art

[0002] Turbine blades are the general term for the static and dynamic blades used in steam turbines. Blades are the key components of steam turbines and are also among the most delicate and important components. They are under the combined action of high temperature, high pressure, huge centrifugal force, steam force, steam excitation force, corrosion, vibration, and water droplet erosion in the wet steam area under extremely harsh conditions. During the assembly process of turbine blades, corresponding rivet heads are used. By adding chamfers inside the rivet holes, the assembly process can be made more convenient and it helps prevent the workpieces from being damaged during assembly. In addition, the chamfer also helps to avoid jamming caused by excessive insertion during disassembly.

[0003] After retrieval, the patent (application number: 202320877038.1) discloses "an automatic chamfering device for turbine blade rivet heads". This device fixes the rivet head through a station moving mechanism and drives the movement of the rivet head. A chamfering milling cutter clamped by a pneumatic drill is used to chamfer the rivet head, which improves the chamfering processing efficiency and makes the surface roughness after processing smoother. However, this device has the following deficiencies in the actual operation process:

[0004] This device mainly first requires the operator to turn the bolt to open the pneumatic drill, then insert the rivet head of the turbine blade into the hole of the rivet hole plate, and use the rotating chamfering milling cutter to chamfer the rivet head. The entire process not only has a long pause period during both the feeding and discharging stages, with slow processing efficiency, but also requires manual loading and unloading operations, relying heavily on manual labor and having a high production cost. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides an automatic chamfering device for turbine blade rivet heads, which overcomes the deficiencies of the prior art and effectively solves the problems of slow working efficiency and high production cost.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An automatic chamfering device for turbine blade rivet heads includes a chamfering table. The inner wall of the top of the chamfering table is fixedly connected with a servo motor through bolts, and the output shaft of the servo motor is connected with a rotating turntable. The outer wall of the top of the chamfering table is fixedly connected with a cylinder through bolts, and the piston rod of the cylinder is connected with a positioning clamping plate;

[0008] On the outer wall of the top of the chamfering table, a feeding chute is welded on one side of the rotating tray. A clamping ring is arranged outside the rotating tray. On the other side of the rotating tray on the outer wall of the top of the chamfering table, a triangular plate is arranged, and a blanking chute is welded at the bottom of the triangular plate on the inner wall of the chamfering table.

[0009] Preferably, a support frame is welded on the outer wall of the top of the chamfering table, and an electric push rod is installed on the inner wall of the top of the support frame. The piston rod of the electric push rod is installed with a driving motor, and the output shaft of the driving motor is connected with a chamfering drill bit through a chuck.

[0010] Preferably, a support plate is installed on the outer wall of the driving motor, and a blowing nozzle is installed on the outer wall of the top of the support plate. The top of one end of the blowing nozzle is connected with an air pipe.

[0011] Preferably, equidistantly distributed material grooves are formed on the outer wall of the top of the rotating tray, and rivet heads are placed on the inner walls of the material grooves.

[0012] Preferably, a first fixing rod is fixedly connected between the chamfering table and the clamping ring through bolts.

[0013] Preferably, a second fixing rod is fixedly connected between the chamfering table and the triangular plate through bolts.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1. For the automatic chamfering device for rivet heads of steam turbine blades in this design, since there are multiple material grooves distributed on the rotating tray, and each material groove can place a rivet head. By driving the rotation of the rotating tray by a servo motor and using a cylinder to push the positioning clamping plate to clamp the rivet head to provide stability, the device can continuously chamfer each rivet head, and the pause interval time is short, greatly improving the chamfering efficiency of the rivet head.

[0016] 2. For the automatic chamfering device for rivet heads of steam turbine blades in this design, the rivet head can slide into the rotating tray from the feeding chute, and the clamping ring can prevent the rivet head from falling off. Under the blocking action of the triangular plate, the rivet head will automatically slide out of the rotating tray and into the blanking chute, realizing the automatic loading and unloading of the rivet head, saving manpower and reducing production costs. Description of the Drawings

[0017] Figure 1 is a schematic diagram of the overall structure of an automatic chamfering device for rivet heads of steam turbine blades proposed by the present utility model;

[0018] Figure 2 is a bottom view of the overall structure of an automatic chamfering device for rivet heads of steam turbine blades proposed by the present utility model;

[0019] Figure 3Schematic diagram of the electric push rod connection structure of an automatic chamfering device for turbine blade rivet heads proposed by the present utility model.

[0020] In the figure: 1, chamfering table; 2, servo motor; 3, rotating material tray; 4, feeding chute; 5, material clamping ring; 6, triangular plate; 7, discharging chute; 8, air cylinder; 9, positioning clamping plate; 10, support frame; 11, electric push rod; 12, driving motor; 13, chamfering drill bit; 14, support plate; 15, air blowing nozzle; 16, air pipe; 17, material groove; 18, first fixing rod; 19, second fixing rod. Specific implementation mode

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0022] Embodiment 1, referring to Figure 1-2 , an automatic chamfering device for turbine blade rivet heads, including a chamfering table 1. The inner wall of the top of the chamfering table 1 is fixedly connected by bolts to a servo motor 2, and the output shaft of the servo motor 2 is connected to a rotating material tray 3. The outer wall of the top of the chamfering table 1 is fixedly connected by bolts to an air cylinder 8, and the piston rod of the air cylinder 8 is connected to a positioning clamping plate 9.

[0023] In this embodiment, since a plurality of material grooves 17 are distributed on the rotating material tray 3, and each material groove 17 can place a rivet head. By driving the rotating material tray 3 to rotate by the servo motor 2 and using the air cylinder 8 to push the positioning clamping plate 9 to clamp the rivet head to provide stability, the device can continuously chamfer each rivet head, and the pause interval time is short, greatly improving the chamfering efficiency of the rivet head.

[0024] Embodiment 2, referring to Figure 1-2 , an automatic chamfering device for turbine blade rivet heads. The outer wall of the top of the chamfering table 1 is welded with a feeding chute 4 on one side of the rotating material tray 3. A material clamping ring 5 is arranged outside the rotating material tray 3. The outer wall of the top of the chamfering table 1 is provided with a triangular plate 6 on the other side of the rotating material tray 3, and the inner wall of the chamfering table 1 is welded with a discharging chute 7 at the bottom of the triangular plate 6.

[0025] In this embodiment, the rivet head can slide into the rotating material tray 3 from the feeding chute 4, and the material clamping ring 5 can prevent the rivet head from falling off. Under the blocking action of the triangular plate 6, the rivet head will automatically fall off the rotating material tray 3 and slide into the discharging chute 7, realizing the automatic feeding and discharging of the rivet head, saving manpower and reducing production costs.

[0026] Referring to Figure 3A support frame 10 is welded to the outer wall of the top of the chamfering table 1, and an electric push rod 11 is installed on the inner wall of the top of the support frame 10. The piston rod of the electric push rod 11 is installed with a drive motor 12, and the output shaft of the drive motor 12 is connected to a chamfering drill bit 13 through a chuck.

[0027] Reference Figure 3 , a support plate 14 is installed on the outer wall of the driving motor 12, and a blowing nozzle 15 is installed on the outer wall at the top of the support plate 14, and an air pipe 16 is connected to the top of the outer wall of one end of the blowing nozzle 15.

[0028] Reference Figure 1 , the outer wall of the top of the rotating material tray 3 is provided with equidistantly distributed material grooves 17, and the inner wall of the material grooves 17 is provided with rivet heads.

[0029] Reference Figure 1 , a first fixing rod 18 is fixedly connected between the chamfering platform 1 and the clamping ring 5 by bolts.

[0030] Reference Figure 1 , a second fixing rod 19 is fixedly connected between the chamfering platform 1 and the triangular plate 6 by bolts.

[0031] Working principle: The rivet head slides from the feed slide 4 into the rotating material tray 3, and the clamping ring 5 is used to limit the rivet head to prevent it from falling off. The servo motor 2 drives the rotating material tray 3 to rotate. When the rivet head moves to the bottom of the chamfering drill bit 13, the cylinder 8 pushes the positioning clamping plate 9 to clamp the rivet head to prevent shaking. The electric push rod 11 pushes the drive motor 12 downward and drives the chamfering drill bit 13 to rotate. The chamfering drill bit 13 will chamfer each rivet head. During the chamfering process, the blowing nozzle 15 can blow away the debris in the direction of the rivet head;

[0032] As the rotating material tray 3 continues to rotate, the chamfered rivet head will automatically break away from the rotating material tray 3 and slide into the unloading chute 7 under the blocking effect of the triangular plate 6.

[0033] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field within the technical scope disclosed by the utility model can make equivalent replacements or changes based on the technical solution and utility model concept of the utility model, which should be covered by the protection scope of the utility model.

Claims

1. An automatic steam turbine blade rivet head chamfering device, comprising a chamfering table (1), characterized in that: The top inner wall of the chamfering platform (1) is fixedly connected to a servo motor (2) by bolts, and the output shaft of the servo motor (2) is connected to a rotating material tray (3); the top outer wall of the chamfering platform (1) is fixedly connected to a cylinder (8) by bolts, and the piston rod of the cylinder (8) is connected to a positioning clamping plate (9); A feeding slide (4) is welded on the top outer wall of the chamfering platform (1) located on one side of the rotating material tray (3), a clamping ring (5) is arranged outside the rotating material tray (3), a triangular plate (6) is arranged on the top outer wall of the chamfering platform (1) located on the other side of the rotating material tray (3), and a discharge slide (7) is welded on the inner wall of the chamfering platform (1) located at the bottom of the triangular plate (6).

2. The automatic turbine blade rivet head chamfering device according to claim 1 is characterized in that: A support frame (10) is welded to the top outer wall of the chamfering platform (1), and an electric push rod (11) is installed on the top inner wall of the support frame (10). A driving motor (12) is installed on the piston rod of the electric push rod (11), and an output shaft of the driving motor (12) is connected to a chamfering drill bit (13) via a chuck.

3. The automatic steam turbine blade rivet head chamfering device according to claim 2 is characterized in that: A support plate (14) is installed on the outer wall of the driving motor (12), and an air blowing nozzle (15) is installed on the outer wall at the top of the support plate (14); the top of the outer wall at one end of the air blowing nozzle (15) is connected to an air pipe (16).

4. The automatic steam turbine blade rivet head chamfering device according to claim 1, characterized in that: The outer wall of the top of the rotating material tray (3) is provided with material grooves (17) distributed at equal distances, and rivet heads are placed on the inner walls of the material grooves (17).

5. The automatic steam turbine blade rivet head chamfering device according to claim 1, characterized in that: A first fixing rod (18) is fixedly connected between the chamfering platform (1) and the clamping ring (5) via bolts.

6. The automatic steam turbine blade rivet head chamfering device according to claim 1, characterized in that: A second fixing rod (19) is fixedly connected between the chamfering platform (1) and the triangular plate (6) via bolts.

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