Double-head synchronous laser quenching machine tool

Abstract

The utility model provides a double-end synchronous laser quenching machine tool, relates to the technical field of quenching treatment, and aims to solve the technical problem that the performance of a steam turbine blade after quenching is easily influenced because two surfaces of the steam turbine blade are sequentially quenched by carbon dioxide laser quenching in the prior art. A double-head synchronous laser quenching machine tool comprises a bottom plate, a feeding and discharging sliding table, a sliding plate, a clamping tool and two quenching assemblies, the feeding and discharging sliding table is arranged on the bottom plate in the front-back direction, the sliding plate is slidably connected to the feeding and discharging sliding table in the front-back direction, the feeding and discharging sliding table is connected with a driving assembly, and the clamping tool is connected with the sliding plate; the driving assembly drives the sliding plate to move and enables the clamping tool to move between the standby position and the quenching position, each quenching assembly comprises a robot and a quenching head connected to the robot, and the two robots are located on the left side and the right side of the quenching position of the feeding and discharging sliding table correspondingly and drive the quenching heads to quench. And each robot, each quenching head and the driving assembly are electrically connected with the control system.

Description

Technical Field

[0001] The utility model relates to the technical field of quenching treatment, in particular to a double-head synchronous laser quenching machine tool. Background Art

[0002] A steam turbine is an external combustion rotary machine that can convert steam thermal energy into mechanical work. After the steam from the boiler enters the steam turbine, it passes through a series of annularly configured nozzles and moving blades in turn, converting the steam thermal energy into mechanical energy for the rotation of the turbine rotor. Steam converts energy in different ways in the steam turbine, forming steam turbines with different working principles. Steam turbine blades need to be quenched during the production process. Generally, the laser quenching process is used to quench the steam inlet edge of the turbine blades to improve the material hardness and water corrosion resistance. Steam turbine blades need to be quenched on both sides, and in the existing process, carbon dioxide laser quenching is mainly used to quench the two sides in sequence. The second quenching is likely to affect the effect of the previous quenching, thereby affecting the performance of the steam turbine blades after quenching. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a double-head synchronous laser quenching machine to solve the technical problem in the prior art that the two surfaces of the turbine blade are quenched sequentially by carbon dioxide laser quenching, which easily affects the performance of the turbine blade after quenching.

[0004] In order to solve the above technical problems, the utility model provides a double-head synchronous laser quenching machine, including a base plate, a loading and unloading slide, a slide plate, a clamping fixture, two quenching components and a control system. The loading and unloading slide is arranged on the base plate along the front-to-back direction, the slide plate is slidably connected to the loading and unloading slide along the front-to-back direction, the loading and unloading slide is connected to a driving component, the clamping fixture is connected to the slide plate, the driving component drives the slide plate to move and makes the clamping fixture move between a standby position and a quenching position, each quenching component includes a robot and a quenching head connected to the robot, the two robots are respectively located on the left and right sides of the quenching position of the loading and unloading slide and drive the quenching head to quench, and each robot, each quenching head and driving component are electrically connected to the control system.

[0005] After adopting the above structure, the utility model has the following advantages: the driving component drives the slide to move so that the clamping fixture is first in the standby position, and the turbine blade to be quenched is installed on the clamping fixture, and then the driving component drives the slide to move so that the clamping fixture is in the quenching position. At this time, the control system controls two groups of quenching components, and the two robots respectively control the two quenching heads to quench the two surfaces of the turbine blade at the same time according to the set program, which reduces the influence of the subsequent quenching surface processing caused by the sequential quenching of the two surfaces on the effect of the previous quenching process, improves the performance of the turbine blade after quenching, and also improves the quenching efficiency.

[0006] As an improvement, a horizontal rotating head is connected to the slide, the horizontal rotating head is connected to the clamping tooling, and the horizontal rotating head is electrically connected to the control system; with this structure, the horizontal rotating head drives the workpiece to rotate during the quenching process, thereby operating in conjunction with the two robots. When quenching complex curved surfaces, it helps the trajectory of the quenching head light spot to fully fit the curved surface to be quenched, thereby improving the quenching effect.

[0007] As an improvement, a tailstock for fixing the workpiece is connected to the slide plate, and the clamping fixture and the tailstock are respectively connected to the front and rear ends of the workpiece; with this structure, clamping one end of the turbine blade by the clamping fixture alone will cause the other end of the turbine blade to be suspended in the air, especially when quenching longer turbine blades, the other end of the turbine blade being suspended in the air may easily cause the turbine blade to shake, and the tailstock can assist in fixing the turbine blade, that is, fixing the other end of the turbine blade, thereby improving the stability of the turbine blade during quenching and improving the quenching effect.

[0008] As an improvement, each quenching assembly also includes a laser head protection plate connected to the robot and located above the quenching head; this structure is used to prevent the laser emitted by the quenching head from hitting the opposite quenching head due to misoperation and causing damage to the quenching head, thereby protecting the quenching head.

[0009] As an improvement, a protective cover is connected to the bottom plate, and the two quenching components are located inside the protective cover; this structure can prevent personal injury caused by the quenching laser and can also prevent the spread of smoke and dust generated during quenching.

[0010] As an improvement, the control system includes an integrated cabinet, a laser and a control cabinet. The laser is used to provide quenching laser for the two quenching heads. There are two control cabinets, and the two control cabinets are used to control the two robots respectively. The laser and the control cabinet are both connected in the integrated cabinet. This structure is equipped with an integrated cabinet to facilitate the placement of auxiliary equipment and ensure the temperature and humidity environment requirements during the operation of important equipment.

[0011] As an improvement, an industrial air conditioner is connected to the integrated cabinet; this structure prevents the laser from overheating and burning the equipment.

[0012] As an improvement, each quenching head is connected to a temperature closed-loop system, which is electrically connected to the laser. With this structure, the laser power can be adjusted according to the set temperature so that the workpiece quenching temperature is always within the optimal temperature range.

[0013] As an improvement, the drive assembly includes a servo motor and a screw mechanism, the screw mechanism is connected to the loading and unloading slide and the slide plate, and the servo motor is connected to the loading and unloading slide and the screw mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the front view of the utility model.

[0015] Figure 2 It is a top view of the utility model.

[0016] Figure 3 It is a top view of the clamping tool in the utility model when it is in the standby position.

[0017] Figure 4 It is a top view of the clamping fixture of the utility model when it is located at the quenching position.

[0018] Figure 5 It is a three-dimensional structural schematic diagram of the loading and unloading slide part in the utility model.

[0019] Figure numerals: 1. Base plate; 2. Loading and unloading slide; 3. Slide plate; 4. Clamping fixture; 5. Quenching assembly; 51. Robot; 52. Quenching head; 6. Control system; 61. Integrated cabinet; 62. Laser; 63. Control cabinet; 64. Cantilever control box; 7. Horizontal rotating head; 8. Tail stock; 9. Laser head protection plate; 10. Protective cover; 11. Industrial air conditioner. DETAILED DESCRIPTION

[0020] The double-head synchronous laser quenching machine tool of the utility model is described in detail below in conjunction with the accompanying drawings.

[0021] like Figures 1 to 5 As shown, a double-head synchronous laser quenching machine tool includes a base plate 1, an upper and lower material slide 2, a slide plate 3, a clamping fixture 4 and two quenching components 5. The upper and lower material slide 2 is arranged on the base plate 1 along the front-to-back direction, and the slide plate 3 is slidably connected to the upper and lower material slide 2 along the front-to-back direction. The upper and lower material slide 2 is connected with a driving component, and the clamping fixture 4 is connected to the slide plate 3. The driving component drives the slide plate 3 to move and makes the clamping fixture 4 move between the standby position and the quenching position; specifically, the driving component includes a servo motor and a screw mechanism, the screw mechanism is connected to the upper and lower material slide 2 and connected to the slide plate 3, the servo motor is connected to the upper and lower material slide 2 and connected to the screw mechanism, and the servo motor drives the screw in the screw mechanism to rotate, so that the nut on the screw drives the slide plate 3 to move forward and backward.

[0022] In addition, if Figure 2 As shown, the slide plate 3 is connected with a horizontal rotating head 7, which is connected to a clamping fixture 4. The horizontal rotating head 7 can drive the clamping fixture 4 to rotate together with the turbine blades, and the slide plate 3 is also connected with a tail stock 8 for fixing the workpiece. The clamping fixture 4 and the tail stock 8 are respectively connected to the front and rear ends of the workpiece to fix longer turbine blades; further, in order to make the tail stock 8 further suitable for turbine blades of different lengths, the tail stock 8 is slidably connected to the slide plate 3, and the sliding direction is the front and rear direction.

[0023] like Figure 1 and Figure 2As shown, each quenching assembly 5 includes a robot 51 and a quenching head 52 connected to the robot 51. The two robots 51 are respectively located on the left and right sides of the quenching position of the upper and lower slide 2 and drive the quenching head 52 to quench. Each robot 51, each quenching head 52, the driving assembly, and the horizontal rotating head 7 are all electrically connected to the control system 6. In addition, each quenching assembly 5 also includes a head protection plate 9 connected to the robot 51 and located above the quenching head 52.

[0024] like Figures 1 to 4 As shown, a protective cover 10 is connected to the bottom plate 1, and the two quenching components 5 are both located in the protective cover 10; Figure 3 and Figure 4 As shown, when the clamping fixture 4 is in the standby position, the clamping fixture 4 and the tailstock 8 are both exposed outside the protective cover 10 , and when the clamping fixture 4 is in the quenching position, the clamping fixture 4 is located inside the protective cover 10 , while the tailstock 8 is still located outside the protective cover 10 .

[0025] like Figure 1 and Figure 2 As shown, the control system 6 includes an integrated cabinet 61, a laser 62 and a control cabinet 63. The laser 62 is used to provide quenching laser for the two quenching heads 52. There are two control cabinets 63 and the two control cabinets 63 are respectively used to control the two robots 51. The laser 62 and the control cabinet 63 are both connected in the integrated cabinet 61. A cantilever control box 64 is also connected to the outside of the protective cover 10. An industrial air conditioner 11 is connected in the integrated cabinet 61. Each quenching head 52 is connected to a temperature closed-loop system, which is electrically connected to the laser 62, and the horizontal rotating head 7 is electrically connected to the control cabinet 63.

[0026] The driving assembly drives the slide plate 3 to move so that the clamping fixture 4 is first in the standby position, and the turbine blade to be quenched is installed on the clamping fixture 4. Then the driving assembly drives the slide plate 3 to move so that the clamping fixture 4 is in the quenching position. At this time, the control system 6 controls the two groups of quenching assemblies 5. The two robots 51 respectively hold two quenching heads 52 to quench both sides of the turbine blade at the same time according to the quenching path, quenching power, spot size and other parameters set on the cantilever control box 64. At the same time, in order to ensure the consistency of the quenching path and the quenching area of ​​the turbine blade, the horizontal rotating head 7 is linked with the two robots 51 according to the set path, which reduces the influence of subsequent quenching surface processing caused by the quenching of the two sides in sequence on the effect of the previous quenching process, improves the performance of the turbine blade after quenching, and also improves the quenching efficiency; and the quenching spot size is variable, and the spot size is adjusted according to the processing needs of the turbine blade.

[0027] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned one implementation mode, and all other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present invention.

Claims

1. A double-head synchronous laser quenching machine tool, characterized in that: The invention comprises a base plate (1), a loading and unloading slide (2), a slide plate (3), a clamping fixture (4), two quenching components (5) and a control system (6); the loading and unloading slide (2) is arranged on the base plate (1) along the front-rear direction; the slide plate (3) is slidably connected to the loading and unloading slide (2) along the front-rear direction; the loading and unloading slide (2) is connected to a driving component; the clamping fixture (4) is connected to the slide plate (3); the driving component drives the slide plate (3) to move and enables the clamping fixture (4) to move between a standby position and a quenching position; each of the quenching components (5) comprises a robot (51) and a quenching head (52) connected to the robot (51); the two robots (51) are respectively located on the left and right sides of the quenching position of the loading and unloading slide (2) and drive the quenching head (52) to quench; each of the robots (51), each of the quenching heads (52) and the driving component are electrically connected to the control system (6).

2. The double-head synchronous laser quenching machine tool according to claim 1 is characterized in that: The slide plate (3) is connected to a horizontal rotating head (7), the horizontal rotating head (7) is connected to the clamping fixture (4), and the horizontal rotating head (7) is electrically connected to the control system (6).

3. The double-head synchronous laser quenching machine tool according to claim 1, characterized in that: The slide plate (3) is connected to a tailstock (8) for fixing a workpiece, and the clamping fixture (4) and the tailstock (8) are respectively connected to the front and rear ends of the workpiece.

4. The double-head synchronous laser quenching machine tool according to claim 1, characterized in that: Each of the quenching assemblies (5) further comprises a light head protection plate (9) connected to the robot (51) and located above the quenching head (52).

5. The double-head synchronous laser quenching machine tool according to claim 1, characterized in that: A protective cover (10) is connected to the bottom plate (1), and the two quenching components (5) are both located inside the protective cover (10).

6. The double-head synchronous laser quenching machine tool according to claim 1, characterized in that: The control system (6) comprises an integrated cabinet (61), a laser (62) and a control cabinet (63); the laser (62) is used to provide quenching laser for the two quenching heads (52); there are two control cabinets (63) and the two control cabinets (63) are used to control the two robots (51) respectively; the laser (62) and the control cabinet (63) are both connected inside the integrated cabinet (61).

7. The double-head synchronous laser quenching machine tool according to claim 6, characterized in that: The integrated cabinet (61) is connected to an industrial air conditioner (11).

8. The double-head synchronous laser quenching machine tool according to claim 6, characterized in that: Each of the quenching heads (52) is connected to a temperature closed loop system, and the temperature closed loop system is electrically connected to the laser (62).

9. The double-head synchronous laser quenching machine tool according to claim 1, characterized in that: The drive assembly comprises a servo motor and a screw mechanism, the screw mechanism is connected to the loading and unloading slide (2) and to the slide plate (3), and the servo motor is connected to the loading and unloading slide (2) and to the screw mechanism.

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