Propeller tenon and groove milling positioning tool

Abstract

The utility model discloses a propeller tenon and groove milling positioning frock, including base plate, both sides of base plate top are all through support swing installation has first screw rod, one end of first screw rod all is installed with first rattle handle, all through nut pair installation has the strip plate on the outer wall of first screw rod two sides, the top of base plate of first screw rod two sides all is provided with first guide rail, and the top of first guide rail is slidably connected with the bottom of strip plate, one side of strip plate top all is through support swing installation has second screw rod, and one end of second screw rod is installed with second rattle handle, and the outer wall of second screw rod is installed with bearing seat through nut pair, and the top of strip plate of second screw rod one side is provided with second guide rail, and the top of second guide rail is slidably connected with the bottom of bearing seat. The utility model not only improves the application range of positioning frock, but also improved the convenience when positioning frock uses, and reached the purpose of easy to carry out the quick positioning of propeller.

Description

Technical Field

[0001] This utility model relates to the field of mechanical processing positioning fixture technology, specifically a propeller tenon and slot milling positioning fixture. Background Technology

[0002] As a key component of power plants such as ships and aircraft, the machining accuracy of the tenon groove of the propeller directly affects the connection stability and transmission efficiency between the propeller and the drive shaft. In the traditional propeller tenon groove milling process, simple fixtures are usually used for positioning. This positioning method has many shortcomings. Therefore, the development of a propeller tenon groove milling positioning fixture is of great practical significance.

[0003] A positioning device for a propeller shaft machining machine tool, as described in reference announcement number CN217890181U, includes a machine tool worktable. A base plate is fixed to the upper end of the worktable. An electric telescopic cylinder is installed at the middle of the upper end of the base plate. A push plate is fixed to the upper end of the electric telescopic cylinder. Support rods are fixed to both sides of the upper end of the push plate. A positioning seat is fixed to the upper end of each support rod. A guide sleeve is fixed to one side of the positioning seat. Side support frames are fixed to both sides of the upper end of the base plate. A guide rod is fixed inside the side support frame, and the guide sleeve is slidably connected to the guide rod. A U-shaped positioning groove is provided inside the positioning seat, and a U-shaped clamp is provided inside the U-shaped positioning groove. This device is suitable for positioning propeller shafts of various diameters, providing convenient and quick positioning. It also allows for adjustment of the propeller shaft machining height, offering flexibility and convenience, and overall better performance. However, while this device can be well applied, it is generally not convenient to adjust the spacing between the clamping components, making it difficult to clamp and fix workpieces of different lengths, thus having certain limitations. Utility Model Content

[0004] The purpose of this utility model is to provide a propeller tenon and slot milling positioning fixture to solve the problem that although the device proposed in the background art can be applied well, it is usually not convenient to adjust the distance between the clamping parts, and thus it is not easy to clamp and fix workpieces of different lengths, which has certain limitations.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a propeller tenon slot milling positioning fixture, comprising a base plate, on both sides of the top of the base plate being rotatably mounted with a first lead screw via a bracket, a first crank arm being mounted at one end of each first lead screw, strip plates being mounted on the outer walls of both sides of the first lead screw via nut pairs, a first guide rail being provided at the top of the base plate on both sides of the first lead screw, the top of the first guide rail being slidably connected to the bottom end of the strip plate, a second lead screw being rotatably mounted on one side of the top of each strip plate via a bracket, a second crank arm being mounted at one end of the second lead screw, a bearing seat being mounted on the outer wall of the second lead screw via a nut pair, a second guide rail being provided at the top of the strip plate on one side of the second lead screw, the top of the second guide rail being slidably connected to the bottom end of the bearing seat.

[0006] Preferably, each of the outer walls on one side of the support seat is fixedly installed with a vertical plate, and each of the inner walls at the upper end of the vertical plate is fixedly installed with a clamping frame. The clamping frame is used to place the trapezoidal clamping block and the abutment block.

[0007] Preferably, abutment blocks are installed on both sides of the bottom of the clamping frame, and a trapezoidal clamping block is movably installed on the top of the clamping frame. The trapezoidal clamping block and the abutment blocks are used to clamp and position one end of the propeller.

[0008] Preferably, the trapezoidal clamping block has a through hole inside, and a screw is installed on the outer wall of one side of the trapezoidal clamping block. One end of the screw passes through the through hole and is threadedly connected to the clamping frame. By tightening the screw, the bottom end of the trapezoidal clamping block abuts against the top end of the propeller.

[0009] Preferably, side support plates are provided on both sides of the bottom end of the substrate, and drawers are slidably installed on the inner wall between the side support plates to place and store objects.

[0010] Preferably, a positioning plate is fixed on one outer wall of the lower end of the side support plate, and the positioning plate is provided with equally spaced positioning holes. The positioning plate and the positioning holes are used to bolt and position the entire positioning fixture.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the propeller tenon slot milling positioning fixture not only improves the applicability of the positioning fixture, but also improves the convenience of using the positioning fixture, and achieves the purpose of easy and rapid positioning of the propeller.

[0012] (1) By rotating the first crank handle, the first lead screw is driven to rotate, so that the strip plate slides towards each other on the outer wall of the first lead screw via the nut pair, and slides on the top of the first guide rail to adjust the distance between the vertical plates, thereby making it easier to clamp and position propellers of different lengths, thus improving the applicability of the positioning fixture.

[0013] (2) By rotating the second crank, the second screw is driven to rotate. At this time, the bearing seat slides on the outer wall of the second screw through the nut pair and slides on the top of the second guide rail. The position of the vertical plate can be adjusted back and forth to clamp and position the propeller in the designated area as needed, thereby improving the convenience of using the positioning fixture.

[0014] (3) By placing one end of the propeller inside the clamping frame, the top of the abutting block abuts against the bottom of the propeller, and the bottom of the trapezoidal clamping block abuts against the top of the propeller, and then tightening the screw, the trapezoidal clamping block and the abutting block can clamp and position one end of the propeller, thereby achieving the purpose of easy and quick positioning of the propeller. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a front view structural diagram of the present invention;

[0017] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0018] Figure 4 This utility model Figure 1 Enlarged structural diagram at point B.

[0019] In the diagram: 1. Base plate; 2. Side support plate; 3. Drawer; 4. Positioning plate; 401. Positioning hole; 5. First crank handle; 6. First lead screw; 7. First guide rail; 8. Strip plate; 9. Second crank handle; 10. Second lead screw; 11. Second guide rail; 12. Bearing seat; 13. Vertical plate; 14. Clamping frame; 15. Screw; 16. Trapezoidal clamping block; 17. Through hole; 18. Abutment block. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0021] Please see Figure 1-4 An embodiment of this utility model is provided: a propeller tenon slot milling positioning fixture, including a base plate 1, side support plates 2 are provided on both sides of the bottom end of the base plate 1, and a drawer 3 is slidably installed on the inner wall between the side support plates 2.

[0022] When in use, drawer 3 is used to place and store items;

[0023] A positioning plate 4 is fixed on one outer wall at the lower end of the side support plate 2. The positioning plate 4 has equally spaced positioning holes 401 inside.

[0024] In use, the positioning plate 4 and the positioning hole 401 are set to bolt and position the entire positioning fixture.

[0025] Both sides of the top of the substrate 1 are rotatably mounted with a first lead screw 6 via a bracket. A first rocker arm 5 is mounted on one end of each first lead screw 6. A strip plate 8 is mounted on the outer wall of both sides of the first lead screw 6 via a nut pair. A first guide rail 7 is provided on the top of the substrate 1 on both sides of the first lead screw 6. The top of the first guide rail 7 is slidably connected to the bottom of the strip plate 8. A second lead screw 10 is rotatably mounted on one side of the top of the strip plate 8 via a bracket. A second rocker arm 9 is mounted on one end of the second lead screw 10. A bearing seat 12 is mounted on the outer wall of the second lead screw 10 via a nut pair. A vertical plate 13 is fixedly mounted on the outer wall of one side of the bearing seat 12. A clamping frame 14 is fixedly mounted on the inner wall of the upper end of the vertical plate 13.

[0026] In use, the clamping frame 14 is set up to place the trapezoidal clamping block 16 and the abutment block 18.

[0027] Abutting blocks 18 are installed on both sides of the bottom of the clamping frame 14, and a trapezoidal clamping block 16 is movably installed on the top of the clamping frame 14.

[0028] In use, the trapezoidal clamping block 16 and the abutment block 18 are set to clamp and position one end of the propeller.

[0029] The trapezoidal clamping block 16 has a through hole 17 inside, and a screw 15 is installed on the outer wall of one side of the trapezoidal clamping block 16. One end of the screw 15 passes through the through hole 17 and is threadedly connected to the clamping frame 14.

[0030] In use, tighten the screw 15 so that the bottom end of the trapezoidal clamp 16 abuts against the top of the propeller;

[0031] A second guide rail 11 is provided at the top of the strip plate 8 on one side of the second lead screw 10, and the top of the second guide rail 11 is slidably connected to the bottom of the bearing seat 12.

[0032] In this embodiment, the drawer 3 is first slidably installed between the two side support plates 2 for easy placement and storage of items. The positioning plate 4 and positioning hole 401 facilitate the bolting and positioning of the entire positioning fixture. Then, one end of the propeller is placed inside the clamping frame 14, so that the top of the abutment block 18 abuts against the bottom of the propeller, and the bottom of the trapezoidal clamping block 16 abuts against the top of the propeller. After tightening the screw 15, the trapezoidal clamping block 16, in conjunction with the abutment block 18, clamps and positions one end of the propeller, facilitating quick positioning and placement of the propeller. Finally, the second crank 9 is rotated to drive... The second lead screw 10 is rotated, at which time the bearing seat 12 slides on the outer wall of the second lead screw 10 via the nut pair, and the bearing seat 12 slides on the top of the second guide rail 11. The position of the upright plate 13 can be adjusted back and forth to clamp and position the propeller in the designated area as needed. Then, by rotating the first crank 5, the first lead screw 6 is driven to rotate, so that the strip plate 8 slides towards each other on the outer wall of the first lead screw 6 via the nut pair, and slides on the top of the first guide rail 7 to adjust the distance between the upright plates 13. This makes it easier to clamp and position propellers of different lengths, thus completing the use of the positioning fixture.

Claims

1. A propeller tenon slot milling positioning fixture, characterized in that: The system includes a substrate (1). A first lead screw (6) is rotatably mounted on both sides of the top of the substrate (1) via a bracket. A first rocker arm (5) is mounted on one end of each first lead screw (6). A strip plate (8) is mounted on the outer wall of both sides of the first lead screw (6) via a nut pair. A first guide rail (7) is provided on the top of the substrate (1) on both sides of the first lead screw (6). The top of the first guide rail (7) is slidably connected to the bottom of the strip plate (8). A second lead screw (10) is rotatably mounted on one side of the top of the strip plate (8) via a bracket. A second rocker arm (9) is mounted on one end of the second lead screw (10). A bearing seat (12) is mounted on the outer wall of the second lead screw (10) via a nut pair. A second guide rail (11) is provided on the top of the strip plate (8) on one side of the second lead screw (10). The top of the second guide rail (11) is slidably connected to the bottom of the bearing seat (12).

2. The propeller tenon slot milling positioning fixture according to claim 1, characterized in that: Each of the support bases (12) has a vertical plate (13) fixedly installed on the outer wall of one side, and a clamping frame (14) is fixedly installed on the inner wall of the upper end of each vertical plate (13).

3. The propeller tenon slot milling positioning fixture according to claim 2, characterized in that: Both sides of the bottom of the clamping frame (14) are equipped with abutment blocks (18), and a trapezoidal clamping block (16) is movably installed on the top of the clamping frame (14).

4. The propeller tenon slot milling positioning fixture according to claim 3, characterized in that: The trapezoidal clamp (16) has a through hole (17) inside. A screw (15) is installed on the outer wall of one side of the trapezoidal clamp (16). One end of the screw (15) passes through the through hole (17) and is threadedly connected to the clamp frame (14).

5. The propeller tenon milling positioning fixture according to claim 1, characterized in that: Side support plates (2) are provided on both sides of the bottom end of the substrate (1), and drawers (3) are slidably installed on the inner wall between the side support plates (2).

6. The propeller tenon slot milling positioning fixture according to claim 5, characterized in that: A positioning plate (4) is fixed on one side of the lower end of the side support plate (2), and the positioning plate (4) has equally spaced positioning holes (401) inside.

Images