General dovetail head blade processing fixture

Abstract

The utility model relates to the technical field of fixture, especially a general dovetail head blade machining fixture. Its technical scheme: including base, the base upper end is fixed with fixed frame and mounting bracket, the base upper end and be located between fixed frame and mounting bracket slidingly connected with sliding frame, fixed clamping plate and movable clamping plate are fixed respectively in the side of fixed frame and sliding frame and are close to each other, the fixed clamping plate is opened with sliding slot, the sliding slot is slidably connected with stabilizer block, the stabilizer block front end projects sliding sliding slot, the fixed frame is provided with the drive assembly of drive stabilizer block sliding adjustment. The utility model utilizes the clamping and fixing of fixed clamping plate and movable clamping plate, then keeps the stability of blade through both sides stabilizer block, can further increase the stability of clamping, avoids the risk of deflection inclination in blade reprocessing.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, specifically a general-purpose dovetail tenon blade processing fixture. Background Technology

[0002] Dovetail blades refer to blades with a dovetail tenon structure at the root, which mates with a corresponding dovetail groove on the rotor to achieve a mechanical connection between the blade and the rotor. This structure is widely used in rotating machinery such as aero engines, gas turbines, and axial compressors, and has outstanding advantages such as reliable connection, convenient assembly and disassembly, compact structure, and light weight.

[0003] When machining and clamping dovetail blades, they are mainly kept in place by the mutual compression of the clamping plates. In this case, if there is no limiting structure on both sides of the dovetail blade, the dovetail blade will deflect and tilt during the machining process because the surface of the dovetail blade is smooth, which will affect the machining accuracy. Therefore, it is necessary to design a clamp with limiting structures on both sides. Utility Model Content

[0004] The purpose of this invention is to provide a universal dovetail tenon blade machining fixture to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a base, with a fixed frame and a mounting frame fixed to the upper end of the base. A sliding frame is slidably connected to the upper end of the base between the fixed frame and the mounting frame. A fixed clamping plate and a movable clamping plate are respectively fixed to the side of the fixed frame and the sliding frame that are close to each other. A sliding groove is provided on the fixed clamping plate, and a stabilizing block is slidably connected in the sliding groove. The front end of the stabilizing block extends out of the sliding groove. A driving component for adjusting the sliding of the stabilizing block is provided inside the fixed frame.

[0006] Preferably, the drive assembly includes a drive slot and a servo motor. The drive slot is formed in a fixed frame, and a pair of drive blocks are slidably connected in the drive slot. The end of the stabilizing block is fixed to the drive block.

[0007] Preferably, a bidirectional lead screw is rotatably connected in the drive slot, the servo motor is fixed to the outer wall of the fixing frame, the output end of the servo motor is fixed to the bidirectional lead screw, and the bidirectional lead screw passes through the drive block and is threadedly connected to the drive block.

[0008] Preferably, a pair of guide rods are fixed inside the drive groove, the guide rods pass through the drive block and are slidably connected to the drive block.

[0009] Preferably, the stabilizing block is composed of a fixed block, a side block, and a telescopic block. The fixed block is fixed at one end to the driving block. The fixed block has a telescopic groove at its front end. A telescopic block is slidably connected in the telescopic groove. The front end of the telescopic block extends out of the telescopic groove and is fixedly connected to the side block. The front end of the side block extends out of the sliding groove and is equipped with a ball bearing. A telescopic spring is fixed between the inner sidewall of the telescopic groove and the telescopic block.

[0010] Preferably, a support plate is fixed at the bottom center of the fixed clamp, a limiting post is fixed between the fixed frame and the mounting frame, the limiting post passes through the sliding frame and is slidably connected to the sliding frame, and a telescopic cylinder that drives the sliding frame to slide is fixed on the mounting frame.

[0011] Compared with the prior art, the beneficial effects of this utility model are: when using fixed clamping plates and movable clamping plates for clamping and fixing, the stability of the blade is maintained by the stabilizing blocks on both sides, which can further increase the stability of clamping and avoid the risk of deflection and tilting during the reprocessing of the blade. Attached Figure Description

[0012] Figure 1 This is a partial sectional view of the side of the general-purpose dovetail tenon blade processing fixture of this utility model;

[0013] Figure 2 This is a schematic diagram of the combined structure of the general-purpose dovetail tenon blade processing fixture fixing frame and sliding frame of this utility model;

[0014] Figure 3 This is a schematic diagram of the internal structure of the universal dovetail tenon blade processing fixture fixing frame of this utility model;

[0015] Figure 4 This is a schematic diagram of the stabilizing block structure of the general-purpose dovetail tenon blade processing fixture of this utility model.

[0016] In the diagram: 1. Base; 2. Fixing frame; 21. Fixing clamp; 22. Sliding groove; 23. Limiting post; 24. Support plate; 3. Sliding frame; 31. Movable clamp; 4. Mounting frame; 5. Telescopic cylinder; 6. Stabilizing block; 61. Fixing block; 62. Side block; 63. Telescopic block; 64. Telescopic groove; 65. Telescopic spring; 66. Ball bearing; 7. Drive groove; 71. Drive block; 72. Two-way lead screw; 73. Guide rod; 74. Servo motor. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-4 This utility model provides a technical solution: including a base 1, with a fixed frame 2 and a mounting frame 4 fixed at the upper end of the base 1, and a sliding frame 3 slidably connected at the upper end of the base 1 between the fixed frame 2 and the mounting frame 4. A fixed clamping plate 21 and a movable clamping plate 31 are fixed on the side of the fixed frame 2 and the sliding frame 3 respectively. A sliding groove 22 is provided on the fixed clamping plate 21, and a stabilizing block 6 is slidably connected in the sliding groove 22. The front end of the stabilizing block 6 extends out of the sliding groove 22. A driving component for adjusting the sliding of the stabilizing block 6 is provided in the fixed frame 2. A support plate 24 is fixed at the middle position of the bottom of the fixed clamping plate 21. A limiting post 23 is fixed between the fixed frame 2 and the mounting frame 4. The limiting post 23 passes through the sliding frame 3 and is slidably connected to the sliding frame 3. A telescopic cylinder 5 for driving the sliding of the sliding frame 3 is fixed on the mounting frame 4.

[0019] The stabilizing block 6 consists of a fixed block 61, a side block 62, and a telescopic block 63. The fixed block 61 is fixed at one end to the driving block 71. The fixed block 61 has a telescopic groove 64 at its front end. The telescopic block 63 is slidably connected in the telescopic groove 64. The front end of the telescopic block 63 extends out of the telescopic groove 64 and is fixedly connected to the side block 62. The front end of the side block 62 extends out of the sliding groove 22 and is equipped with a ball bearing 66. A telescopic spring 65 is fixed between the inner side wall of the telescopic groove 64 and the telescopic block 63.

[0020] The drive assembly includes a drive slot 7 and a servo motor 74. The drive slot 7 is opened inside the fixed frame 2. A pair of drive blocks 71 are slidably connected inside the drive slot 7. The end of the stabilizing block 6 is fixed to the drive block 71. A bidirectional lead screw 72 is rotatably connected inside the drive slot 7. The servo motor 74 is fixed to the outer wall of the fixed frame 2. The output end of the servo motor 74 is fixed to the bidirectional lead screw 72. The bidirectional lead screw 72 passes through the drive block 71 and is threadedly connected to the drive block 71. A pair of guide rods 73 are fixed inside the drive slot 7. The guide rods 73 pass through the drive block 71 and are slidably connected to the drive block 71.

[0021] Working principle: First, connect the entire device to an external power source. Then, place the dovetail blade onto the surface of the fixed clamping plate 21, ensuring its bottom abuts against the bottom of the support plate 24. The sliding of the stabilizing block 6 allows the two sides of the dovetail blade to abut against each other, maintaining its upright position. The telescopic cylinder 5 then drives the sliding frame 3 and the movable clamping plate 31 to slide, pressing and fixing the dovetail blade. This not only achieves frontal pressing of the dovetail blade but also, through the limiting action on both sides, keeps it upright at all times. To avoid deflection or tilting during processing, the front end of the stabilizing block 6 is designed to be retractable, enabling synchronous pressing and limiting of dovetail blades of different thicknesses. This ensures that the front end of the stabilizing block 6 does not obstruct the clamping of the movable clamping plate 31. Furthermore, the sliding of the driving block 71 drives the stabilizing block 6 to slide, allowing it to limit the dovetail blades of different sizes on both sides. During this process, the output of the servo motor 74 drives the bidirectional screw to rotate, thereby driving the driving block 71 to slide synchronously. The operation is simple and convenient.

[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0023] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A general-purpose dovetail tenon blade machining fixture, comprising a base (1), characterized in that: The upper end of the base (1) is fixed with a fixed frame (2) and a mounting frame (4). A sliding frame (3) is slidably connected to the upper end of the base (1) between the fixed frame (2) and the mounting frame (4). A fixed clamping plate (21) and a movable clamping plate (31) are fixed on the side of the fixed frame (2) and the sliding frame (3) respectively. A sliding groove (22) is provided on the fixed clamping plate (21). A stabilizing block (6) is slidably connected in the sliding groove (22). The front end of the stabilizing block (6) extends out of the sliding groove (22). A drive component for adjusting the sliding of the stabilizing block (6) is provided in the fixed frame (2).

2. The universal dovetail tenon blade machining fixture according to claim 1, characterized in that: The drive assembly includes a drive slot (7) and a servo motor (74). The drive slot (7) is opened in the fixed frame (2). A pair of drive blocks (71) are slidably connected in the drive slot (7). The end of the stabilizing block (6) is fixed on the drive block (71).

3. The universal dovetail tenon blade machining fixture according to claim 2, characterized in that: A bidirectional lead screw (72) is rotatably connected inside the drive slot (7). The servo motor (74) is fixed on the outer wall of the fixing frame (2). The output end of the servo motor (74) is fixed on the bidirectional lead screw (72). The bidirectional lead screw (72) passes through the drive block (71) and is threadedly connected to the drive block (71).

4. The universal dovetail tenon blade machining fixture according to claim 2, characterized in that: A pair of guide rods (73) are fixed inside the drive groove (7). The guide rods (73) pass through the drive block (71) and are slidably connected to the drive block (71).

5. The universal dovetail tenon blade machining fixture according to claim 1, characterized in that: The stabilizing block (6) consists of a fixed block (61), a side block (62), and a telescopic block (63). The fixed block (61) is fixed at one end to the driving block (71). The fixed block (61) has a telescopic groove (64) at its front end. The telescopic block (63) is slidably connected in the telescopic groove (64). The front end of the telescopic block (63) extends out of the telescopic groove (64) and is fixedly connected to the side block (62). The front end of the side block (62) extends out of the sliding groove (22) and is fitted with a ball bearing (66). A telescopic spring (65) is fixed between the inner sidewall of the telescopic groove (64) and the telescopic block (63).

6. The universal dovetail tenon blade machining fixture according to claim 1, characterized in that: A support plate (24) is fixed at the bottom center of the fixed clamp (21). A limit post (23) is fixed between the fixed frame (2) and the mounting frame (4). The limit post (23) passes through the sliding frame (3) and is slidably connected to the sliding frame (3). A telescopic cylinder (5) that drives the sliding frame (3) to slide is fixed on the mounting frame (4).

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