Titanium alloy thin-wall turning fixture

Abstract

The utility model discloses titanium alloy thin wall turning clamp, including shock attenuation installation unit, shock attenuation installation unit sets up on lathe, shock attenuation installation unit includes connecting main shaft and buffer part, connecting main shaft is connected with the output shaft of lathe, buffer part has a plurality of and sets up on connecting main shaft respectively, buffer part is used for supporting thin wall piece hole wall and absorbing the vibration caused in processing, and the device solves the problem that the whole wall thickness is thin and is easy to vibrate and bulge in turning processing after hardening after being heated in rotary processing, and the product is easy to deform. Reach the effect that can be disposable to thin wall part processing forming, can effectively reduce the fixture, time, tool cost, and can effectively guarantee the stability of processing size.

Description

Technical Field

[0001] This utility model relates to the field of turning fixture technology, and more specifically, to a titanium alloy thin-walled turning fixture. Background Technology

[0002] Thin-walled titanium alloy parts are widely used in aerospace, precision instruments, and other fields due to their high specific strength and good corrosion resistance. However, these parts face many technological challenges in turning.

[0003] Currently, titanium alloy thin-walled machining fixtures on the market are specifically designed for machining thin-walled tubular parts. For products that combine the characteristics of difficult-to-machine materials and thin, slender shapes, the process is challenging due to the difficulty in designing fixtures, using cutting tools, and machining itself. Specialized tooling and tooling designs are required, leading to long setup and debugging cycles and high production costs.

[0004] Titanium alloys have poor thermal conductivity, and heat tends to concentrate in the cutting area during the cutting process, resulting in significant work hardening, accelerating tool wear, and affecting the surface integrity of the parts. Secondly, the thin-walled structure lacks rigidity and is prone to elastic deformation, vibration, and even local bulging under the action of cutting force, clamping force, and cutting heat, resulting in unstable machining accuracy and difficulty in ensuring wall thickness uniformity.

[0005] In existing technologies, rigid clamps or hydraulic clamping fixtures are mostly used for clamping. While rigid clamps can provide stable clamping, they are prone to deformation of thin-walled parts and are difficult to effectively suppress cutting vibrations during high-speed rotation. Hydraulic clamps, on the other hand, can achieve uniform clamping, but their complex structure and high cost, as well as issues with sealing reliability and maintenance convenience under prolonged high-temperature conditions, present problems. Furthermore, to suppress vibrations, traditional processes often force the reduction of cutting parameters, severely impacting machining efficiency. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a titanium alloy thin-walled turning fixture that can reduce vibration during the machining process.

[0007] To achieve the above objectives, the present invention provides the following technical solution: The present invention is further configured to include a vibration damping mounting unit; the vibration damping mounting unit is mounted on a machine tool; the vibration damping mounting unit includes a connecting spindle and a buffer part; the connecting spindle is connected to the output shaft of the machine tool; the buffer part has multiple buffer parts and is respectively mounted on the connecting spindle; the buffer part is used to support the hole wall of the thin-walled part to absorb the vibration caused during processing.

[0008] By adopting the above technical solution, the problem of heat hardening during rotary machining, which leads to vibration and bulging during turning due to the thin wall thickness, and easy product deformation, is solved. It achieves the ability to machine thin-walled parts in a single pass, effectively reducing the costs of fixtures, time, and tools. Furthermore, it effectively ensures the stability of the machined dimensions.

[0009] The present invention is further configured such that: the buffer part has multiple buffer parts arranged in an array along the outer side of the connecting main shaft, and multiple abutment grooves for installing the buffer parts are opened on the outer side of the connecting main shaft, and the middle part of the abutment groove is an inner ring surface structure.

[0010] The present invention is further configured such that: the multiple abutting grooves are two abutting surfaces on the left and right sides for abutting the buffer part, wherein the edge of the abutting surface on the left side is rounded. In the installed state, when the buffer part slides along the outside of the connecting main shaft, the outer end face of the buffer part can move in an abutting state along the left abutting surface.

[0011] By adopting the above technical solution, when installing the buffer part, the operator first slides the buffer part along the outer side of the connecting main shaft. When the buffer part moves to the abutment groove position, its outer side first contacts the rounded corner structure on the left side of the abutment groove. Under the guidance of the rounded corner structure, the buffer part undergoes radial contraction, thus smoothly entering the abutment groove and quickly forming a stable abutment installation state with the right abutment surface and inner ring surface in the groove.

[0012] The present invention is further configured such that the contact surface on the right side for contacting the buffer part is a right-angled structure.

[0013] The present invention is further configured such that: the shock-absorbing mounting unit also includes a fixing unit and pins; the fixing unit is slidably disposed on the outside of the connecting spindle, and a limiting groove is provided on the outside of the fixing unit; there is a pair of pins which are respectively rotatably disposed on the outside of the connecting spindle.

[0014] The present invention is further configured such that: the shock-absorbing mounting unit also includes an abutment gasket; the abutment gasket is slidably disposed on the connecting main shaft, and the abutment gasket can slide along the outer side of the connecting main shaft and abut against the end face of the fixing unit.

[0015] The present invention is further configured such that: the shock-absorbing mounting unit also includes a fastener; the fastener is rotatably mounted on the connecting spindle, and the fastener can drive the abutment pad to press against the side surface of the fixing unit.

[0016] In summary, this application includes at least one of the following beneficial technical effects: By incorporating a vibration-damping mounting unit, the problem of heat hardening during rotary machining, which causes vibration and bulging in thin-walled parts during turning, leading to product deformation, is solved. This allows for the one-time machining of thin-walled parts, effectively reducing fixture, time, and tooling costs, while also ensuring dimensional stability during machining.

[0017] By incorporating an abutment groove, the buffer unit is first slid along the outer side of the connecting spindle during installation. When the buffer unit reaches the abutment groove position, its outer side first contacts the rounded corner structure on the left side of the groove. Guided by the rounded corner structure, the buffer unit radially contracts, smoothly entering the abutment groove and quickly forming a stable abutment with the right abutment surface and inner annular surface within the groove. This solves the problem of the buffer unit easily adhering to the inner annular surface of the abutment groove, i.e., the bottom surface of the groove between the two end faces, leading to difficult disassembly. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the titanium alloy thin-walled turning fixture of this utility model; Figure 2 This is a three-dimensional structural diagram of the connecting spindle of the titanium alloy thin-walled turning fixture of this utility model; Figure 3 This is a front cross-sectional view of the titanium alloy thin-walled turning fixture of this utility model; Figure 4 This is a three-dimensional structural diagram of the titanium alloy thin-walled turning fixture of this utility model under an exploded state. Figure 5 for Figure 4 Enlarged structural diagram at point A in the middle; Explanation of reference numerals in the attached drawings: 1. Vibration damping mounting unit; 11. Connecting spindle; 111. Abutment groove; 12. Buffer part; 13. Fixing unit; 14. Pin; 15. Abutment washer; 16. Fastener. Detailed Implementation

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0021] Please see Figures 1-5 The present invention provides the following technical solution: Example 1: In order to solve the problem that when the connecting spindle 11 is machining the hole wall of a thin-walled part, the material of the hole wall is difficult to machine and hardens after being heated during rotational machining, which leads to unstable dimensional machining of the hole wall by the connecting spindle 11, resulting in the thin overall wall thickness being prone to vibration and bulging during turning, and the product being prone to deformation.

[0022] It includes a vibration damping mounting unit 1; the vibration damping mounting unit 1 is mounted on the machine tool; the vibration damping mounting unit 1 includes a connecting spindle 11 and a buffer part 12; the connecting spindle 11 is connected to the output shaft of the machine tool; the buffer part 12 has multiple parts and is respectively mounted on the connecting spindle 11; the buffer part 12 is used to support the hole wall of the thin-walled part to absorb the vibration caused during processing.

[0023] In this embodiment, the buffer part 12 is a circular ring, and the circular ring is preferably a rubber sealing ring. First, the connecting spindle 11 is connected to the output shaft of the machine tool. After this installation, the operator then installs multiple buffer parts 12 onto the connecting spindle 11. It should be noted that the distance between each buffer part 12 is preferably set at sixteen centimeters to ensure that each buffer part 12 can maintain a stable dynamic support when the connecting spindle 11 rotates.

[0024] See Figure 4 The buffer part 12 has multiple buffer parts arranged in an array along the outer side of the connecting main shaft 11, and the outer side of the connecting main shaft 11 has multiple abutment grooves 111 for mounting the buffer part 12, and the middle part of the abutment groove 111 has an inner ring surface structure.

[0025] In this embodiment, the operator can install multiple buffer parts 12 by connecting the abutment groove 111 opened on the outside of the main spindle 11. After the buffer parts 12 are installed, the outer side of the buffer parts 12 can abut against the left and right sides of the abutment groove 111 respectively.

[0026] In Example 2, under long-term high-temperature conditions, the buffer part 12 is prone to deformation, affecting its buffering performance and requiring replacement. However, due to the high temperature, the buffer part 12 is prone to sticking to the inner annular surface of the abutment groove 111, i.e., the bottom surface of the groove located between the two end faces, making disassembly difficult and increasing maintenance difficulty and operating costs.

[0027] See Figure 4 and Figure 5 Multiple abutment grooves 111 are two abutment surfaces on the left and right sides for abutting the buffer part 12. The edge of the abutment surface on the left side has a rounded corner structure. In the installed state, when the buffer part 12 slides along the outside of the connecting main shaft 11, the outer end face of the buffer part 12 can move along the left abutment surface in an abutting state.

[0028] In this embodiment, when installing the buffer part 12, the operator first slides the buffer part 12 along the outer side of the connecting main shaft 11. When the buffer part 12 moves to the position of the abutment groove 111, its outer side first contacts the rounded corner structure on the left side of the abutment groove 111. Under the guidance of the rounded corner structure, the buffer part 12 undergoes radial contraction, thereby smoothly entering the abutment groove 111 and quickly forming a stable abutment installation state with the right abutment surface and inner ring surface inside the groove. This solves the problem that the buffer part 12 easily adheres to the inner ring surface of the abutment groove 111, that is, the bottom surface of the groove located between the two end faces, leading to difficulty in disassembly.

[0029] See Figure 5 The contact surface on the right side, which is used to abut against the buffer part 12, has a right-angled structure.

[0030] When it is necessary to disassemble and replace the buffer section 12 that has been in long-term use, the operator can use a special tool to slide its end along the beveled right-angled structure of the right-side abutment surface. Guided by the bevel, the tool naturally tilts upward and slides into the gap between the buffer section 12 and the inner annular surface of the abutment groove 111. Through leverage, the tool smoothly pries the buffer section 12 from the adhesive position, achieving quick disassembly. This improves disassembly efficiency and facilitates subsequent cleaning of the abutment groove 111, ensuring that the abutment groove 111 is restored to a clean state.

[0031] See Figure 4 and Figure 5 The shock-absorbing mounting unit 1 also includes a fixing unit 13 and pins 14; the fixing unit 13 is slidably disposed on the outside of the connecting spindle 11, and a limiting groove is provided on the outside of the fixing unit 13; the pins 14 are a pair and are respectively rotatably disposed on the outside of the connecting spindle 11.

[0032] After the buffer unit 12 is installed, the operator slides the fixing unit 13 along the outside of the connecting spindle 11 until it moves to the installation position of the pin 14. Then, the pin 14 is fixed to the connecting spindle 11, causing the end of the pin 14 to rotate into the limiting groove provided on the outside of the fixing unit 13. At this time, the axial movement of the fixing unit 13 is constrained, thus stably positioning it on the connecting spindle 11. When the spindle rotates, the pin 14 abuts against the side wall of the limiting groove, effectively transmitting the rotational force to the fixing unit 13.

[0033] See Figure 4 The shock-absorbing mounting unit 1 also includes an abutment pad 15; the abutment pad 15 is slidably disposed on the connecting spindle 11, and the abutment pad 15 can slide along the outside of the connecting spindle 11 and abut against the end face of the fixing unit 13.

[0034] In this embodiment, the abutment gasket 15 is preferably a spherical gasket, and the spherical gasket is made of a deformable rubber material. In this embodiment, after installing the fixing unit 13 and the pin 14, the operator slides the abutment gasket 15 onto the connecting spindle 11 until the abutment gasket 15 abuts against the side surface of the fixing unit 13.

[0035] See Figure 4 The shock-absorbing mounting unit 1 also includes a fastener 16; the fastener 16 is rotatably mounted on the connecting spindle 11, and the fastener 16 can drive the abutment pad 15 to press against the side surface of the fixing unit 13.

[0036] After the abutment pad 15 abuts against the side surface of the fixing unit 13, the operator rotates the fastener 16 so that the fastener 16 can rotate and squeeze the abutment pad 15, so that the abutment pad 15 can fix the fixing unit 13 to the outside of the connecting spindle 11.

[0037] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

Claims

1. A titanium alloy thin-walled turning fixture, characterized in that: Including the vibration damping installation unit (1); The vibration damping mounting unit (1) is installed on the machine tool; The vibration damping mounting unit (1) includes a connecting spindle (11) and a buffer part (12); Connect the main spindle (11) to the output shaft of the machine tool; The buffer section (12) has multiple parts and is respectively disposed on the connecting spindle (11); The buffer section (12) is used to support the hole wall of the thin-walled part to absorb the vibration caused during processing.

2. The titanium alloy thin-walled turning fixture according to claim 1, characterized in that: The buffer section (12) has multiple sections arranged in an array along the outer side of the connecting main shaft (11), and multiple abutment grooves (111) for mounting the buffer section (12) are provided on the outer side of the connecting main shaft (11), with the middle part of the abutment groove (111) having an inner annular surface structure.

3. The titanium alloy thin-walled turning fixture according to claim 2, characterized in that: Multiple abutting grooves (111) are two abutting surfaces on the left and right sides for abutting the buffer part (12). The edge of the abutting surface on the left side is rounded. When the buffer part (12) slides along the outside of the connecting main shaft (11) in the installed state, the outer end face of the buffer part (12) can move along the left abutting surface in an abutting state.

4. The titanium alloy thin-walled turning fixture according to claim 3, characterized in that: The contact surface on the right side, which is used to abut against the buffer part (12), has an inverted right angle structure.

5. The titanium alloy thin-walled turning fixture according to claim 4, characterized in that: The shock-absorbing mounting unit (1) also includes a fixing unit (13) and pins (14); the fixing unit (13) is slidably disposed on the outside of the connecting spindle (11), and a limiting groove is provided on the outside of the fixing unit (13); the pins (14) are a pair and are respectively rotatably disposed on the outside of the connecting spindle (11).

6. The titanium alloy thin-walled turning fixture according to claim 5, characterized in that: The shock-absorbing mounting unit (1) also includes an abutment pad (15); the abutment pad (15) is slidably disposed on the connecting spindle (11), and the abutment pad (15) can slide along the outside of the connecting spindle (11) and abut against the end face of the fixing unit (13).

7. The titanium alloy thin-walled turning fixture according to claim 6, characterized in that: The shock-absorbing mounting unit (1) also includes a fastener (16); the fastener (16) is rotatably mounted on the connecting spindle (11), and the fastener (16) can drive the abutment pad (15) to press against the side surface of the fixing unit (13).

Images