Welding fixture for steam sealing strip bending machine of steam turbine

Abstract

The utility model belongs to the technical field of bending machine production equipment, and discloses a steam turbine sealing strip bending machine welding clamp which comprises a rectangular box, movable frames are movably installed in the left side and the right side of the rectangular box, and a first motor is fixedly installed in the rectangular box. Through the arrangement of the long block, the moving rod, the first connecting block, the rotating rods and the clamping blocks, an operator operates the pneumatic cylinder to enable the moving block to move upwards, so that the two rotating rods drive the moving block, the two limiting blocks and the two clamping blocks to move oppositely, and then parts of the bending machine are automatically clamped and fixed; and then a first motor is started, so that a rotating shaft and a long block rotate, then the long block drives a moving block, a first connecting block and two movable frames to move in opposite directions through two moving rods, parts between the two clamping blocks are in automatic butt joint, and convenience is provided for follow-up welding operation of operators on the parts of the bending machine.

Description

Technical Field

[0001] The utility model belongs to the technical field of bending machine production equipment, in particular to a welding fixture for a steam turbine steam seal bending machine. Background Art

[0002] Bending machine is a process testing instrument used in the field of mechanical engineering. Its main function is to bend profiles such as channel steel, flat steel, and steel pipes.

[0003] At present, operators often need to use welding fixtures when producing bending machine parts to assist in subsequent welding operations. However, in actual use, the existing welding fixtures require operators to manually clamp and fix the two bending machine parts, and then manually connect the two parts. Errors will occur in this process, which will affect subsequent welding operations and bring inconvenience to operators. Therefore, they need to be improved. Utility Model Content

[0004] The purpose of the utility model is to solve the above problems. The utility model provides a welding fixture for a steam turbine seal plate bending machine, which has the advantages of automatic clamping, fixing and docking.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a welding fixture for a steam turbine seal bending machine, comprising a rectangular box, wherein movable frames are movably installed inside the left and right sides of the rectangular box, a first motor is fixedly installed inside the rectangular box, the other end of the output shaft of the first motor is fixedly sleeved with a rotating shaft, the other end of the rotating shaft passes through the rectangular box and extends to the outside of the front of the rectangular box and is fixedly sleeved with a long block, the upper and lower ends of the long block are hinged with moving rods, the number of the moving rods is two, the other ends of the two moving rods are hinged with a moving block, the outer side of the moving block is fixedly connected to a No. 1 connecting block, the The back side of the No. 1 connecting block is movably connected to the front side of the rectangular box, and the other end of the No. 1 connecting block extends to the outside of the movable frame and is fixedly connected to the outside of the movable frame. A pneumatic cylinder is fixedly installed on the bottom of the inner surface of the movable frame, and the top of the pneumatic cylinder is fixedly connected to a moving block. The left and right sides of the top of the moving block are hinged with a rotating rod, and the top of the rotating rod is hinged with a movable block. A limiting slot is provided on the top of the movable frame, and the internal movability of the limiting slot is connected to the limiting block. There are two limiting blocks, and the opposite surfaces of the two limiting blocks are fixedly connected to No. 1 springs. The tops of the two limiting blocks are fixedly installed with clamping blocks.

[0006] As a preferred embodiment of the present invention, a No. 2 long groove is provided on the left and right sides of the back of the rectangular box, and a second rectangular block is movably installed inside the No. 2 long groove. There are two second rectangular blocks, and the backs of the two second rectangular blocks are fixedly connected with a No. 2 connecting block. There are two No. 2 connecting blocks, and the opposite surfaces of the two No. 2 connecting blocks are fixedly connected with a No. 2 spring. The other end of the No. 2 connecting block extends to the outside of the movable frame and is fixedly connected to the outside of the movable frame.

[0007] As a preferred embodiment of the present invention, a second motor located above the No. 2 spring is fixedly installed on the back of the rectangular box, and a rotating shaft is fixedly sleeved on the other end of the output shaft of the second motor. A No. 1 long groove is provided on the left and right sides of the front of the rectangular box, and a first rectangular block is movably connected inside the No. 1 long groove, and the front of the first rectangular block is fixedly connected to the back of the No. 1 connecting block.

[0008] As a preferred embodiment of the present invention, a first long rod is fixedly sleeved on the outer surface of the rotating shaft, and a second long rod is hingedly connected to the other end of the first long rod.

[0009] As a preferred embodiment of the present invention, the other end of the second long rod is hinged with a movable rod, and the front side of the movable rod is fixedly connected with a fixed cover.

[0010] As a preferred embodiment of the present invention, a limiting rod is fixedly installed at the rear of the top end of the rectangular box, and the top of the limiting rod passes through the movable rod and extends to the outside of the top end of the movable rod.

[0011] As a preferred embodiment of the present invention, the bottom of the limiting block is fixedly connected to the top of the movable block, and the outer surface of the limiting block and the inner surface of the limiting groove are both smooth.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] 1. The utility model is provided with a long block, a moving rod, a No. 1 connecting block, a rotating rod and a clamping block. The operator operates the pneumatic cylinder to move the moving block upward, thereby causing the two rotating rods to drive the movable block, the two limit blocks and the two clamping blocks to move toward each other, thereby automatically clamping and fixing the bending machine parts. Subsequently, the first motor is started to rotate the rotating shaft and the long block, thereby causing the long block to drive the moving block, the No. 1 connecting block and the two movable frames to move toward each other through the two moving rods, thereby automatically docking the parts between the two clamping blocks, providing convenience for the subsequent operator to perform welding operations on the bending machine parts.

[0014] 2. The utility model provides a first long rod, a second long rod, a movable rod and a fixed cover. The operator starts the second motor to rotate the rotating shaft and the first long rod, thereby causing the second long rod to drive the movable rod and the fixed cover to move downward. When the bottom of the fixed cover contacts the top of the rectangular box, the bending machine parts will be covered, so that the bending machine parts can be better stabilized during the operator's subsequent welding operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the side surface of the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the top of the utility model;

[0018] Figure 4 This is a schematic cross-sectional view of the side of the pneumatic cylinder of the utility model;

[0019] Figure 5 It is a schematic cross-sectional structural diagram of the side of the utility model.

[0020] In the figure: 1. rectangular box; 2. movable frame; 3. long slot No. 1; 4. first rectangular block; 5. first motor; 6. rotating shaft; 7. long block; 8. moving rod; 9. moving block; 10. connecting block No. 1; 11. pneumatic cylinder; 12. moving block; 13. rotating rod; 14. movable block; 15. limiting slot; 16. limiting block; 17. clamping block; 18. spring No. 1; 19. long slot No. 2; 20. second rectangular block; 21. connecting block No. 2; 22. spring No. 2; 23. second motor; 24. rotating shaft; 25. first long rod; 26. second long rod; 27. movable rod; 28. fixed cover; 29. ​​limiting rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] like Figures 1 to 5As shown, the utility model provides a steam turbine seal bending machine welding fixture, including a rectangular box 1, wherein movable frames 2 are movably installed inside the left and right sides of the rectangular box 1, a first motor 5 is fixedly installed inside the rectangular box 1, and the other end of the output shaft of the first motor 5 is fixedly sleeved with a rotating shaft 6, the other end of the rotating shaft 6 passes through the rectangular box 1 and extends to the outside of the front of the rectangular box 1 and is fixedly sleeved with a long block 7, the upper and lower ends of the long block 7 are hinged with a moving rod 8, the number of the moving rod 8 is two, and the other ends of the two moving rods 8 are hinged with a moving block 9, the outer side of the moving block 9 is fixedly connected to a No. 1 connecting block 10, and the back of the No. 1 connecting block 10 is connected to the rectangular box 1 The front side is movably connected, the other end of the No. 1 connecting block 10 extends to the outside of the movable frame 2 and is fixedly connected to the outside of the movable frame 2. A pneumatic cylinder 11 is fixedly installed on the bottom of the inner surface of the movable frame 2, and a moving block 12 is fixedly connected to the top of the pneumatic cylinder 11. The left and right sides of the top of the moving block 12 are hinged with a rotating rod 13, and the top of the rotating rod 13 is hinged with a movable block 14. A limiting groove 15 is provided on the top of the movable frame 2, and the internal movability of the limiting groove 15 is connected to a limiting block 16. There are two limiting blocks 16. The opposite surfaces of the two limiting blocks 16 are fixedly connected to a No. 1 spring 18, and the tops of the two limiting blocks 16 are fixedly installed with a clamping block 17.

[0023] The operator operates the pneumatic cylinder 11 and the first motor 5. The operation of the pneumatic cylinder 11 causes the movable block 12 to move upward, thereby causing the two rotating rods 13 to drive the movable block 14, the two limit blocks 16 and the two clamping blocks 17 to move toward each other. At this time, the No. 1 spring 18 will be compressed, thereby realizing the automatic clamping of the bending machine parts. The operation of the first motor 5 causes the rotating shaft 6 and the long block 7 to rotate, thereby causing the long block 7 to drive the two moving rods 8, the moving block 9, the No. 1 connecting block 10 and the two movable frames 2 to move toward each other, thereby realizing the automatic docking of the bending machine parts.

[0024] Among them, a No. 2 long groove 19 is opened on the left and right sides of the back of the rectangular box 1, and a second rectangular block 20 is movably installed inside the No. 2 long groove 19. There are two second rectangular blocks 20. The backs of the two second rectangular blocks 20 are fixedly connected with a No. 2 connecting block 21. There are two No. 2 connecting blocks 21. The opposite surfaces of the two No. 2 connecting blocks 21 are fixedly connected with a No. 2 spring 22. The other end of the No. 2 connecting block 21 extends to the outside of the movable frame 2 and is fixedly connected to the outside of the movable frame 2.

[0025] Due to the design of the No. 2 spring 22 , a good reset effect is achieved on the movement of the No. 1 connecting block 10 and the two No. 2 connecting blocks 21 .

[0026] Among them, a second motor 23 located above the No. 2 spring 22 is fixedly installed on the back of the rectangular box 1, and the other end of the output shaft of the second motor 23 is fixedly sleeved with a rotating shaft 24. A No. 1 long groove 3 is opened on the left and right sides of the front of the rectangular box 1. The interior of the No. 1 long groove 3 is movably connected to the first rectangular block 4, and the front of the first rectangular block 4 is fixedly connected to the back of the No. 1 connecting block 10.

[0027] When the operator starts the second motor 23 , the rotating shaft 24 will rotate.

[0028] A first long rod 25 is fixedly sleeved on the outer surface of the rotating shaft 24 , and a second long rod 26 is hingedly connected to the other end of the first long rod 25 .

[0029] When the rotating shaft 24 rotates, the first long rod 25 is driven to rotate together.

[0030] The other end of the second long rod 26 is hinged with a movable rod 27 , and the front of the movable rod 27 is fixedly connected with a fixed cover 28 .

[0031] When the first long rod 25 rotates, the second long rod 26 drives the movable rod 27 and the fixed cover 28 to move downward.

[0032] A limiting rod 29 is fixedly installed at the rear of the top of the rectangular box 1 , and the top of the limiting rod 29 passes through the movable rod 27 and extends to the outside of the top of the movable rod 27 .

[0033] Due to the design of the limiting rod 29 , a good limiting effect is achieved on the movement of the movable rod 27 and the fixed cover 28 .

[0034] The bottom of the limiting block 16 is fixedly connected to the top of the movable block 14 , and the outer surface of the limiting block 16 and the inner surface of the limiting groove 15 are both smooth.

[0035] Since the outer surface of the limiting block 16 and the inner surface of the limiting groove 15 are both smooth, the limiting block 16 can move more smoothly inside the limiting groove 15 .

[0036] The working principle and use process of this utility model:

[0037] First, the operator operates the pneumatic cylinder 11 to cause the movable block 12 to move upward, thereby causing the two rotating rods 13 to drive the movable block 14, the two limit blocks 16 and the two clamping blocks 17 to move toward each other, thereby completing the automatic clamping and fixation of the bending machine parts. Then the operator starts the first motor 5 to cause the rotating shaft 6 and the long block 7 to rotate, thereby causing the long block 7 to drive the movable block 9, the No. 1 connecting block 10 and the two movable frames 2 to move toward each other through the two moving rods 8, thereby completing the automatic docking of the bending machine parts.

[0038] Finally, the operator starts the second motor 23, causing the rotating shaft 24 and the first long rod 25 to rotate, thereby causing the second long rod 26 to drive the movable rod 27 and the fixed cover 28 to move downward. When the bottom of the fixed cover 28 contacts the top of the rectangular box 1, the two bending machine components will be covered, so that the bending machine components will have better stability during the subsequent welding process, which brings convenience to the operator's welding operation.

[0039] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steam turbine seal plate bending machine welding fixture, comprising a rectangular box (1), characterized in that: The left and right sides of the rectangular box (1) are both movably installed with movable frames (2), the inside of the rectangular box (1) is fixedly installed with a first motor (5), the other end of the output shaft of the first motor (5) is fixedly sleeved with a rotating shaft (6), the other end of the rotating shaft (6) passes through the rectangular box (1) and extends to the outside of the front of the rectangular box (1) and is fixedly sleeved with a long block (7), the upper and lower ends of the long block (7) are hinged with a moving rod (8), the number of the moving rods (8) is two, and the other ends of the two moving rods (8) are hinged with a moving block (9), the outer side of the moving block (9) is fixedly connected to a No. 1 connecting block (10), the back of the No. 1 connecting block (10) is movably connected to the front of the rectangular box (1), and the No. 1 connecting block (10) is hinged with the front of the rectangular box (1). ) extends to the outside of the movable frame (2) and is fixedly connected to the outside of the movable frame (2), a pneumatic cylinder (11) is fixedly installed on the bottom of the inner surface of the movable frame (2), a moving block (12) is fixedly connected to the top of the pneumatic cylinder (11), the left and right sides of the top of the moving block (12) are hinged with a rotating rod (13), the top of the rotating rod (13) is hinged with a movable block (14), the top of the movable frame (2) is provided with a limiting groove (15), the inner part of the limiting groove (15) is movably connected to the limiting block (16), the number of the limiting blocks (16) is two, the opposite surfaces of the two limiting blocks (16) are fixedly connected to a No. 1 spring (18), and the tops of the two limiting blocks (16) are fixedly installed with a clamping block (17).

2. A steam turbine seal plate bending machine welding fixture according to claim 1, characterized in that: The rectangular box (1) is provided with a second long groove (19) on both the left and right sides of the back surface, and a second rectangular block (20) is movably installed inside the second long groove (19). The number of the second rectangular blocks (20) is two, and the back surfaces of the two second rectangular blocks (20) are fixedly connected with a second connecting block (21). The number of the second connecting blocks (21) is two, and the opposite surfaces of the two second connecting blocks (21) are fixedly connected with a second spring (22). The other end of the second connecting block (21) extends to the outside of the movable frame (2) and is fixedly connected to the outside of the movable frame (2).

3. The steam turbine seal plate bending machine welding fixture according to claim 1, characterized in that: A second motor (23) located above a No. 2 spring (22) is fixedly mounted on the back of the rectangular box (1); a rotating shaft (24) is fixedly sleeved on the other end of the output shaft of the second motor (23); a No. 1 long slot (3) is provided on both the left and right sides of the front of the rectangular box (1); a first rectangular block (4) is movably connected inside the No. 1 long slot (3); and the front of the first rectangular block (4) is fixedly connected to the back of the No. 1 connecting block (10).

4. The steam turbine seal plate bending machine welding fixture according to claim 3, characterized in that: A first long rod (25) is fixedly sleeved on the outer surface of the rotating shaft (24), and a second long rod (26) is hingedly connected to the other end of the first long rod (25).

5. The steam turbine seal plate bending machine welding fixture according to claim 4, characterized in that: The other end of the second long rod (26) is hingedly connected to a movable rod (27), and the front surface of the movable rod (27) is fixedly connected to a fixed cover (28).

6. The steam turbine seal plate bending machine welding fixture according to claim 1, characterized in that: A limiting rod (29) is fixedly installed at the rear of the top end of the rectangular box (1), and the top of the limiting rod (29) passes through the movable rod (27) and extends to the outside of the top end of the movable rod (27).

7. The steam turbine seal plate bending machine welding fixture according to claim 1, characterized in that: The bottom of the limiting block (16) is fixedly connected to the top of the movable block (14), and the outer surface of the limiting block (16) and the inner surface of the limiting groove (15) are both smooth.

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