An auxiliary fixture for improving the rigidity of a thin-walled titanium alloy welded frame system

Abstract

The utility model discloses an auxiliary fixture of improving thin -walled titanium alloy welding frame body system rigidity, base is two, two base is arranged on lathe workstation in longitudinal interval, all be provided with a U -shaped groove in the bottom plate of base, T screw rod is installed in the T -shaped groove of lathe workstation, and T screw rod is connected in the U -shaped groove of base and is fixed by nut, every base top two sides respectively are connected with a short double -end screw rod I and a short double -end screw rod II in screw thread, and the middle position of base top is all connected with a long double -end screw rod in screw thread, in the top of base, short double -end screw rod I, short double -end screw rod II and long double -end screw rod all are connected with a nut in screw thread, and two pressure plates respectively pass through the long double -end screw rod of respective side, and the both ends of pressure plate are placed in short double -end screw rod I and short double -end screw rod II top, in the top of pressure plate, long double -end screw rod all are connected with a hexagon nut in screw thread, the utility model discloses can effectively improve the rigidity of system local, satisfies processing requirement.

Description

Technical Field

[0001] This utility model relates to an auxiliary fixture for improving the rigidity of a thin-walled titanium alloy welded frame system, belonging to the field of mechanical technology. Background Technology

[0002] In the production of artillery parts, a type of titanium alloy welded part needs to be processed. Its outline shape is similar to a tuning fork-shaped frame. At a height of about 500mm on the fork-shaped support arm, there are symmetrical trunnion chambers with a diameter of approximately Ф150mm. At a height of about 1000mm, there is a balance support hole structure. The two support arms are made of titanium alloy plates with a thickness of about 10mm, which are staggered and welded to this height. They are covered with a skirt plate with a thickness of about 15mm and then welded together. During the cutting process, resonance is easily caused by the tuning fork effect. The trunnion and balance support hole are located at a high position and have poor local rigidity, which has a significant impact on the finishing process.

[0003] Titanium alloys are characterized by high strength, poor thermal conductivity, severe work hardening, and significant elastic deformation, resulting in low processing efficiency and poor cutting quality, making it difficult to meet the requirements of product drawings. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this utility model provides an auxiliary fixture for improving the rigidity of a thin-walled titanium alloy welded frame system. This auxiliary fixture can effectively improve the local rigidity of the system, meet the processing requirements, and effectively ensure the technical requirements related to the product drawings.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a fixture for improving the rigidity of a thin-walled titanium alloy welded frame system, including a T-shaped screw, a pressure plate, a hexagonal nut, a long double-ended screw, a short double-ended screw I, and a base. There are two bases in total, which are arranged longitudinally at intervals on the machine tool worktable. Each base has a U-shaped groove in its bottom plate. The T-shaped screw is installed in the T-shaped groove of the machine tool worktable and is connected to the U-shaped groove of the base and fixed by a nut.

[0006] Each base has a short double-ended screw I and a short double-ended screw II threadedly connected to its top two sides respectively. Between the short double-ended screw I and the short double-ended screw II, a long double-ended screw is threadedly connected at the middle position of the top of the base. Above the base, a nut is threadedly connected to each of the short double-ended screw I, the short double-ended screw II, and the long double-ended screw.

[0007] The pressure plate has a waist-shaped hole. The two pressure plates are respectively fitted through the waist-shaped hole and the long double-ended screws on their respective sides. The two ends of the pressure plate are respectively placed on the top of the short double-ended screw I and the short double-ended screw II. Above the pressure plate, a hexagonal nut is threaded onto each of the long double-ended screws. Between the hexagonal nut and the pressure plate, a washer is fitted onto each of the long double-ended screws.

[0008] Furthermore, the short double-ended screw I is positioned closer to the T-shaped screw, while the short double-ended screw II is positioned further away from the T-shaped screw.

[0009] Furthermore, the height of the short double-ended screw II exposed above the base is higher than that of the short double-ended screw I exposed above the base; during use, the process block at the outer end of the titanium alloy tuning fork-shaped frame is placed on top of the short double-ended screw I, and this end of the pressure plate is placed above the process block at the outer end of the titanium alloy tuning fork-shaped frame to ensure that the pressure plate is in a horizontal state.

[0010] Furthermore, the arrangement direction of the waist-shaped holes is consistent with the length direction of the pressure plate.

[0011] The beneficial effects of this utility model are: (1) This auxiliary fixture is suitable for cutting environments where the local rigidity of the workpiece system is poor. Using this fixture can effectively improve the local rigidity of the workpiece system. The base is drilled with threaded holes for fixing support and clamping screws. With the help of nuts, the short double-ended screw and the long double-ended screw are reliably connected to the base as a whole. At the same time, the length of the screw is effectively shortened, and the clamping force of the screw clamping the workpiece is fully transmitted to the base. The T-shaped screw rigidly connects the base to the worktable, maximizing the rigidity of the local system near the workpiece balance support and trunnion. (2) The fixture has a simple design and is easy to manufacture. It uses common bolts, nuts and pressure plates, and the manufacturing process is mature and the cost is low. (3) The fixture is easy to operate and easy to adjust during use; it uses common bolts, nuts and pressure plates, and does not require special auxiliary clamping tools. The bolt and nut structure is easy to adjust and can adapt to the compensation of local deviations in the position and height of the workpiece process block.

[0012] This auxiliary fixture features a compact design, tailored to the workpiece contour and worktable clamping dimensions. Once the base is clamped by the T-screw, minimal adjustments are required. It is well-suited for CNC machining, allowing for minimal workpiece clamping position deviation. After clamping, only minor adjustments to the workpiece's zero point are needed for machining. It is ideal for use in positioning and clamping thin-walled titanium alloy workpieces with poor local rigidity, thereby improving the local rigidity of the workpiece system. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 yes Figure 1 A schematic diagram of direction A.

[0016] The following are labeled in the diagram: 1. T-shaped screw, 2. Pressure plate, 201. Waist-shaped hole, 3. Hex nut, 4. Long double-ended screw, 5. Washer, 6. Short double-ended screw I, 7. Base, 8. Machine tool worktable, 9. Titanium alloy tuning fork-shaped frame, 10. Short double-ended screw II. Detailed Implementation

[0017] like Figure 1 As shown in Figure 2, an auxiliary fixture for improving the rigidity of a thin-walled titanium alloy welded frame system includes a T-shaped screw 1, a pressure plate 2, a hexagonal nut 3, a long double-ended screw 4, a short double-ended screw 16, and a base 7. There are two bases 7, which are arranged longitudinally at intervals on a machine tool worktable 8. Each base 7 has a U-shaped groove in its base plate. The T-shaped screw 1 is installed in the T-shaped groove of the machine tool worktable 8 and is connected to the U-shaped groove of the base 7 and fixed by a nut.

[0018] Each base 7 has a short double-ended screw I6 and a short double-ended screw II10 threadedly connected to its top two sides respectively. The short double-ended screw I6 is located close to the T-shaped screw 1, and the short double-ended screw II10 is located away from the T-shaped screw 1. Between the short double-ended screw I6 and the short double-ended screw II10, a long double-ended screw 4 is threadedly connected at the middle position of the top of the base 7. Above the base 7, a nut is threadedly connected to the short double-ended screw I6, the short double-ended screw II10, and the long double-ended screw 4.

[0019] The pressure plate 2 has a waist-shaped hole 201, and the arrangement direction of the waist-shaped hole 201 is consistent with the length direction of the pressure plate 2. The two pressure plates 2 pass through the waist-shaped hole 201 and respectively fit through the long double-ended screw 4. The two ends of the pressure plate 2 are respectively placed on the top of the short double-ended screw I 6 and the short double-ended screw II 10. The height of the short double-ended screw II 10 exposed above the base 7 is higher than the height of the short double-ended screw I 6 exposed above the base 7. In use, the process block at the outer end of the titanium alloy tuning fork-shaped frame 9 is placed on the top of the short double-ended screw I 6, and this end of the pressure plate 2 is placed above the process block at the outer end of the titanium alloy tuning fork-shaped frame 9 to ensure that the pressure plate 2 is in a horizontal state. Above the pressure plate 2, a hexagonal nut 3 is threadedly connected to the long double-ended screw 4. Between the hexagonal nut 3 and the pressure plate 2, a washer 5 is fitted on the long double-ended screw 4.

[0020] How to use: 1) Roughly position and clamp the titanium alloy tuning fork-shaped frame 9 onto the table surface of the machine tool worktable 8; 2) First, insert the T-screw 1 into the T-slot of the machine tool worktable 8; 3) Align the U-shaped groove of the base 7 with the T-shaped screw 1 and place it on the machine tool worktable 8. Adjust the position of the base 7 and the titanium alloy tuning fork frame 9 and clamp the titanium alloy tuning fork frame 9 and the base 7. 4) Adjust the short double-ended screw I6 near the side of the 9 arms of the titanium alloy tuning fork frame. Place the process block on the top of the short double-ended screw I6 and reliably support the process block. Use nuts to lock and fix the short double-ended screw I6 near the side of the 9 arms of the titanium alloy tuning fork frame onto the base 7. 5) Adjust the short double-ended screw II10 away from the arm side of the titanium alloy tuning fork frame 9 so that its height is slightly higher than the upper end face of the outer process block of the titanium alloy tuning fork frame 9, and use nuts to lock and fix the short double-ended screw II10 on the base 7. 6) Adjust the long double-ended screw 4 to meet the clamping height of the pressure plate 2, and use a nut to lock and fix the long double-ended screw 4 on the base 7; 7) Straighten the two pressure plates 2, tighten the hexagonal nut 3 at the upper end of the long double-headed screw 4 to press the pressure plates 2 on their respective sides, and assist in supporting and clamping the process block at the outer end of the titanium alloy tuning fork frame 9 to improve the local rigidity of the titanium alloy tuning fork frame 9 system.

[0021] The tuning fork-shaped frame 9 made of titanium alloy material, which is clamped and processed using this auxiliary fixture, has enhanced local rigidity in the trunnion and the hole system of the left and right support arm balance brackets. After processing, the dimensions of each hole are fully in line with the dimensions, shape, position and surface roughness requirements in the product drawings, as inspected by the inspection personnel.

[0022] This fixture is an auxiliary support fixture designed for the characteristics of thin-walled titanium alloy tuning fork frame. The fixture integrates auxiliary positioning and clamping functions on the base 7, shortens the distance of the clamping screw, and ensures that the clamping force is effectively applied to the process block welded to the side of the thin-walled titanium alloy tuning fork frame 9. At the same time, the base 7 of the auxiliary fixture is rigidly fixed to the machine tool table 8 by the T-shaped screw 1 and the hexagonal nut 3, which transmits the force acting on the process plate of the titanium alloy tuning fork frame 9 to the machine tool table 8, thereby achieving the purpose of improving the local rigidity of the thin-walled titanium alloy tuning fork frame 9 system.

Claims

1. An auxiliary fixture for improving the rigidity of a thin-walled titanium alloy welded frame system, characterized in that: Includes a T-shaped screw (1), a pressure plate (2), a hexagonal nut (3), a long double-ended screw (4), a short double-ended screw I (6), and a base (7). There are two bases (7), which are arranged longitudinally on the machine tool worktable (8). Each base (7) has a U-shaped groove in its base plate. The T-shaped screw (1) is installed in the T-shaped groove of the machine tool worktable (8). The T-shaped screw (1) is connected to the U-shaped groove of the base (7) and fixed by a nut. Each base (7) has a short double-ended screw I (6) and a short double-ended screw II (10) threaded to its top two sides respectively. Between the short double-ended screw I (6) and the short double-ended screw II (10), a long double-ended screw (4) is threaded to the middle position of the top of the base (7). Above the base (7), a nut is threaded to the short double-ended screw I (6), the short double-ended screw II (10) and the long double-ended screw (4). The pressure plate (2) has a waist-shaped hole (201). The two pressure plates (2) pass through the waist-shaped hole (201) and the long double-ended screws (4) on their respective sides. The two ends of the pressure plate (2) are respectively placed on the top of the short double-ended screw I (6) and the short double-ended screw II (10). Above the pressure plate (2), a hexagonal nut (3) is threaded on the long double-ended screw (4). Between the hexagonal nut (3) and the pressure plate (2), a washer (5) is connected to the long double-ended screw (4).

2. The auxiliary fixture for improving the rigidity of a thin-walled titanium alloy welded frame system according to claim 1, characterized in that: The short double-ended screw I (6) is located close to the T-shaped screw (1), and the short double-ended screw II (10) is located far away from the T-shaped screw (1).

3. The auxiliary fixture for improving the rigidity of a thin-walled titanium alloy welded frame system according to claim 1, characterized in that: The height of the short double-ended screw II (10) exposed on the base (7) is higher than the height of the short double-ended screw I (6) exposed on the base (7). When in use, the process block at the outer end of the titanium alloy tuning fork frame (9) is placed on top of the short double-ended screw I (6), and this end of the pressure plate (2) is placed above the process block at the outer end of the titanium alloy tuning fork frame (9) to ensure that the pressure plate (2) is in a horizontal state.

4. The auxiliary fixture for improving the rigidity of a thin-walled titanium alloy welded frame system according to claim 1, characterized in that: The arrangement direction of the waist-shaped hole (201) is consistent with the length direction of the pressure plate (2).

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