Hook-pull type clamping device

Abstract

The utility model discloses a hooking and pulling type clamping device which comprises a first positioning block, a rotating rod, a limiting sleeve, a retreating spring, a main body rod, a hooking and pulling block, a hooking accessory, a tensioning bolt and a second positioning block. According to the utility model, the first positioning block and the second positioning block which are fixed on the clamp respectively provide limiting support for the butt joint column and the draw-in bolt, then the draw-in bolt is rotated to pull the main body rod to move backwards along the hooking slideway through the acting force provided by the second positioning block, and the hooking accessory is used for hooking and fixing the blade; the main body rod is rotated to enable the rotating rod to slide into the limiting notch so as to release the fixation of the blade, the operation is simple, and the use experience of operators is improved; the first positioning block and the second positioning block serve as fixing pieces to be matched with the hooking and pulling block to form a locking structure of an independent station, arrangement is flexible, the locking point position can be adjusted according to the size of the blade, and the applicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aero-engine and gas turbine blade clamping, and particularly relates to a hook-pulling type clamping device. Background Art

[0002] An aero-engine is a highly complex and precise thermal machinery. During the working process, air first enters the intake duct, is pressurized by a compressor and then enters the combustion chamber to mix with fuel for combustion, generating high-temperature and high-pressure gas; the gas pushes the turbine to rotate, drives the compressor to work, and at the same time ejects backward to generate thrust. Its blades are the main components in the pressurizing part, and at the same time, the gas turbine blades are also important components of the gas turbine, responsible for converting the high-temperature and high-pressure gas flow into mechanical energy; during the blade production process, a clamping device is needed to fix the blade to facilitate operation and processing. The existing clamping devices for blades can basically meet the daily use requirements, but the device is limited by the blade structure and needs to be customized in size, which affects the applicability of the clamping device. At the same time, the clamping and releasing process of the device is cumbersome, affecting the use experience of the operators; therefore, it is very necessary to design a hook-pulling type clamping device. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a hook-pulling type clamping device to solve the problems that the existing clamping devices for blades can basically meet the daily use requirements, but the device is limited by the blade structure and needs to be customized in size, which affects the applicability of the clamping device, and the clamping and releasing process of the device is cumbersome, affecting the use experience of the operators.

[0004] To solve the above technical problems, the utility model provides the following technical solutions: A hook-pulling type clamping device includes a first positioning block, a rotating rod, a limiting notch, a limiting sleeve, a connecting piece, a retracting spring, a main body rod, a hooking slideway, a hooking block, a hooking fitting, a tightening bolt and a second positioning block. A docking column is slidably connected in the first positioning block, a rotating rod is fixedly sleeved in a through hole opened on the docking column, limiting notches are symmetrically opened on the first positioning block, a limiting sleeve is arranged on one side of the first positioning block away from the limiting notch, one end of the docking column is fixed on the connecting piece, and a retracting spring is arranged between the connecting piece and the limiting sleeve. A sliding column is arranged on one side of the connecting piece, and a main body rod is arranged on one side of the sliding column. The sliding column is slidably connected in the hooking slideway, the hooking slideway is opened on the hooking block, and the connecting piece and the main body rod are respectively slidably connected on both sides of the hooking block.

[0005] As a further technical solution of the utility model, first locking bolts are fitted and connected in threaded holes symmetrically opened on the first positioning block, and supporting grooves are symmetrically opened on the first positioning block.

[0006] As a further technical solution of the utility model, a hooking accessory is provided on the top of one side of the hook pull block.

[0007] As a further technical solution of the utility model, a connector is provided at the bottom of one side of the hook and pull block.

[0008] As a further technical solution of the utility model, a tensioning bolt is cooperatively connected in the threaded groove provided on the connecting head.

[0009] As a further technical solution of the utility model, the top of the tightening bolt is slidably connected to the bottom of the second positioning block.

[0010] As a further technical solution of the present invention, a second locking bolt is cooperatively connected to the threaded holes symmetrically provided on the second positioning block.

[0011] The utility model provides a hook-and-pull type clamping device, which has the advantages that: the first positioning block and the second positioning block fixed on the clamp provide limiting supports for the docking column and the tightening bolt respectively, when the rotating rod on the docking column is sleeved on the supporting groove, the retreat spring tightens the connecting piece, the main rod and the hook-pull block to approach the blade, and then the tightening bolt is turned to pull the main rod backward along the hook-pull slideway through the force provided by the second positioning block, and the blade is hooked and fixed by the hook-pull accessory, and the main rod is rotated to make the rotating rod on the docking column disengage from the supporting groove. When the rotating rod slides into the limiting notch, the hook-pull block moves away from the first positioning block under the action of the retreat spring to release the fixation of the blade. The clamping and disengagement process is simple, which is convenient for operators to operate and improves the operator's experience of use; at the same time, the first positioning block and the second positioning block are used as fixing parts to cooperate with the hook-pull block to form a locking structure of an independent workstation, which is flexible in layout and the locking point can be adjusted according to the size of the blade, thereby improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is an exploded view of the overall structure of the utility model;

[0015] Figure 3 for Figure 2 A partial enlarged view of the middle A area;

[0016] Figure 4 It is the left view of the overall structure of the present utility model;

[0017] Figure 5 It is the structural schematic diagram of the present utility model in the initial state;

[0018] Figure 6 It is the structural schematic diagram of the present utility model in the tensioned state;

[0019] Figure 7 It is the structural schematic diagram of the present utility model in the locked state.

[0020] In the figure: 1. First positioning block; 2. Docking column; 3. Rotating rod; 4. Limiting notch; 5. First locking bolt; 6. Limiting sleeve; 7. Connecting piece; 8. Retreating spring; 9. Main body rod; 10. Hook tightening slideway; 11. Hook pulling block; 12. Hook tightening fitting; 13. Connecting head; 14. Tightening bolt; 15. Second positioning block; 16. Second locking bolt; 17. Sliding column; 18. Supporting groove. Specific embodiments

[0021] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments of the present utility model shall fall within the protection scope of the present utility model.

[0022] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0023] Please refer to the attached Figure 1 - attached Figure 5, an embodiment provided by the present utility model: a hook-pulling type clamping device, comprising a first positioning block 1, a rotating rod 3, a limiting notch 4, a limiting sleeve 6, a connecting piece 7, a retracting spring 8, a main body rod 9, a hooking slideway 10, a hooking block 11, a hooking fitting 12, a tensioning bolt 14 and a second positioning block 15. A docking column 2 is slidably connected in the first positioning block 1. A rotating rod 3 is fixedly sleeved in a through hole opened on the docking column 2. Limiting notches 4 are symmetrically opened on the first positioning block 1. A limiting sleeve 6 is arranged on one side of the first positioning block 1 away from the limiting notch 4. One end of the docking column 2 is fixed on the connecting piece 7, and a retracting spring 8 is arranged between the connecting piece 7 and the limiting sleeve 6. A sliding column 17 is arranged on one side of the connecting piece 7, and a main body rod 9 is arranged on one side of the sliding column 17. The sliding column 17 is slidably connected in the hooking slideway 10. The hooking slideway 10 is opened on the hooking block 11, and the connecting piece 7 and the main body rod 9 are respectively slidably connected on both sides of the hooking block 11. First locking bolts 5 are connected in a matching manner in threaded holes symmetrically opened on the first positioning block 1, and supporting grooves 18 are symmetrically opened on the first positioning block 1. A hooking fitting 12 is arranged at the top of one side of the hooking block 11. A connecting head 13 is arranged at the bottom of one side of the hooking block 11. A tensioning bolt 14 is connected in a matching manner in a threaded groove opened on the connecting head 13. The top of the tensioning bolt 14 is slidably connected to the bottom of the second positioning block 15. Second locking bolts 16 are connected in a matching manner in threaded holes symmetrically opened on the second positioning block 15, and the second positioning block 15 is used to provide limiting support for the second locking bolts 16.

[0024] Specifically, during use, first, the first positioning block 1 and the second positioning block 15 are fixed on the fixture according to the clamping requirements of the blade and symmetrically installed at the locking positions, as shown in the appendix Figure 5 In the initial state, the rotating rod 3 is located in the limiting notch 4, and the first positioning block 1 and the second positioning block 15 fixed on the fixture respectively provide limiting support for the docking column 2 and the tensioning bolt 14. Then, as shown in the appendix Figure 6 When the device is in a tensioned state, when the rotating rod 3 on the docking column 2 is sleeved on the supporting groove 18, the retracting spring 8 pulls the connecting piece 7, the main body rod 9 and the hooking block 11 close to the blade. Finally, as shown in the appendix Figure 7The device is in a locked state. By rotating the tensioning bolt 14, the main body rod 9 can be pulled backward along the hooking slideway 10 by the acting force provided by the second positioning block 15, and the blade can be hooked and fixed by the hooking fitting 12. Rotating the main body rod 9 makes the rotating rod 3 on the docking column 2 disengage from the supporting groove 18. When the rotating rod 3 slides into the limiting notch 4, the hooking block 11 moves away from the first positioning block 1 under the action of the retracting spring 8 to release the fixation of the blade. The process of clamping and detachment is simple, which is convenient for the operator to operate and improves the use experience of the operator. At the same time, by using the first positioning block 1 and the second positioning block 15 as fixing parts and cooperating with the hooking block 11 to form a locking structure for an independent work station, the layout is flexible, and the locking points can be adjusted according to the blade size, which improves the applicability of the device.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0026] The device embodiments described above are only illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art can understand and implement it without creative labor.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or equivalently replace some of the technical features. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hook-pulling type clamping device, comprising a first positioning block (1), a rotating rod (3), a limiting notch (4), a limiting sleeve (6), a connecting piece (7), a retracting spring (8), a main body rod (9), a hooking slideway (10), a hooking block (11), a hooking fitting (12), a tensioning bolt (14) and a second positioning block (15), characterized in that: A docking post (2) is slidably connected in the first positioning block (1). A rotating rod (3) is fixedly sleeved in a through hole formed in the docking post (2). Limiting notch openings (4) are symmetrically formed in the first positioning block (1). A limiting sleeve (6) is arranged on one side of the first positioning block (1) away from the limiting notch openings (4). One end of the docking post (2) is fixed to a connecting piece (7), and a retracting spring (8) is arranged between the connecting piece (7) and the limiting sleeve (6). A sliding column (17) is arranged on one side of the connecting piece (7), and a main body rod (9) is arranged on one side of the sliding column (17). The sliding column (17) is slidably connected in a tightening slideway (10). The tightening slideway (10) is formed in a hooking block (11), and the connecting piece (7) and the main body rod (9) are respectively slidably connected to both sides of the hooking block (11).

2. The pulling and hooking type clamping device according to claim 1, wherein: First locking bolts (5) are connected in a matching manner in threaded holes symmetrically formed in the first positioning block (1), and support grooves (18) are symmetrically formed in the first positioning block (1).

3. The pull - hook type clamping device according to claim 1, wherein: A tightening fitting (12) is arranged at the top of one side of the hooking block (11).

4. The pull-push type clamping device according to claim 3, characterized in that: A connecting head (13) is arranged at the bottom of one side of the hooking block (11).

5. The pull - hook type clamping device according to claim 4, characterized in that: A tightening bolt (14) is connected in a matching manner in a threaded groove formed in the connecting head (13).

6. The pull - hook type clamping device according to claim 5, wherein: The top of the tightening bolt (14) is slidably connected to the bottom of a second positioning block (15).

7. The pull - hook type clamping device according to claim 6, characterized in that: Second locking bolts (16) are connected in a matching manner in threaded holes symmetrically formed in the second positioning block (15).

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