Constant-pressure clinging titanium alloy vacuum cup body polishing machine and polishing method

Abstract

The invention relates to the related technical field of cup body treatment, in particular to a constant-pressure clinging titanium alloy vacuum cup body polishing machine and a polishing method.The constant-pressure clinging titanium alloy vacuum cup body polishing machine comprises a polishing table and a three-jaw chuck installed on the polishing table, and a polishing structure is arranged on the polishing table; the polishing structure comprises a moving seat arranged on the polishing table and a rotating piece installed on the moving seat. Through the arranged polishing structure, when the inner wall of the titanium alloy vacuum cup is polished, the polishing effect of constant pressure clinging can be achieved, specifically, after a polishing piece stretches into the vacuum cup, a piston rod of an air cylinder stretches out and draws back to adjust the unfolding angle of a flexible self-locking piece connected through a stretching piece on a second rotating base, and the polishing effect is improved. The polishing piece is tightly attached to the inner wall of the vacuum cup, when the contact pressure between the polishing piece and the inner wall reaches a preset value, the self-locking mechanism can automatically conduct positioning and self-locking on the flexible mechanism, and therefore it is guaranteed that the contact pressure between the polishing piece and the inner wall is kept constant.

Description

Technical Field

[0001] The present invention relates to the technical field related to cup body processing, and specifically to a polishing machine and a polishing method for a titanium alloy heat preservation cup body with constant pressing and tight fitting. Background Art

[0002] A titanium alloy heat preservation cup is a heat preservation container made of titanium alloy material, usually used to keep the temperature of liquids, whether hot water or cold water. Titanium alloy is a metal material with high strength, low density, and corrosion resistance, and has excellent physical and chemical properties. The heat preservation cup made of this material not only has good heat preservation effect, but also can resist the influence of the external environment to a certain extent, such as corrosion and wear. In addition, the titanium alloy heat preservation cup also has the characteristics of being light and durable, and is suitable for use in outdoor activities, travel or daily life.

[0003] In the processing and production process of titanium alloy heat preservation cups, it is crucial to ensure the smoothness of the inner and outer walls of the cup body, which is not only related to the aesthetics of the product, but also directly affects its use performance and service life. However, currently, when polishing the inner wall of a titanium alloy heat preservation cup, an inner support type polishing device is usually used. This device controls the contact pressure with the inner wall by the telescopic movement of the piston rod of a cylinder or a hydraulic cylinder, but this method has limitations.

[0004] First of all, different diameters of the inner walls of titanium alloy heat preservation cups require different expansion effects to achieve an ideal polishing effect. However, when the existing inner support type polishing device faces heat preservation cups of different specifications, due to its relatively single pressure control method, the traditional method of controlling the contact pressure with the inner wall by the telescopic movement of the piston rod of a cylinder or a hydraulic cylinder, and the contact between the piston rod and the inner support type polishing device is a rigid connection, it is impossible to accurately adjust the fitting pressure with the inner wall. This results in a significant difference in the fitting pressure between the polishing sheet and the inner wall when polishing heat preservation cups of different diameters, thereby affecting the polishing strength and effect. For example, for a heat preservation cup with a smaller diameter, a lower fitting pressure may be required to avoid deformation or damage caused by excessive extrusion; while for a heat preservation cup with a larger diameter, a higher fitting pressure is required to ensure that the polishing sheet can fully fit the inner wall.

[0005] Secondly, the inconsistency of this pressure control method may also lead to situations where the local pressure is too high or too low during the polishing process. Excessive local pressure may cause the polishing sheet to be in too close contact with the inner wall, resulting in excessive wear, and even may leave scratches or burrs on the inner wall, affecting the surface quality of the product. While too low local pressure may cause the polishing sheet to be in insufficient contact with the inner wall, unable to effectively remove surface defects and unevenness, thereby reducing the polishing effect. Especially in large-scale production, it is difficult to ensure that the inner wall polishing effect of each heat preservation cup reaches the same high standard. Summary of the Invention

[0006] The purpose of the present invention is to provide a polishing machine and a polishing method for the cup body of a titanium alloy heat-insulated cup with constant pressing and tight fitting, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above purpose, the present invention provides the following technical solutions:

[0008] A polishing machine for the cup body of a titanium alloy heat-insulated cup with constant pressing and tight fitting, including a polishing table and a three-jaw chuck installed on the polishing table. A polishing structure is provided on the polishing table, and the polishing structure includes:

[0009] A moving seat provided on the polishing table and a rotating member installed on the moving seat. A stretching member is connected to the rotating member;

[0010] A flexible self-locking member rotatably connected to the stretching member. One end of the flexible self-locking member is rotatably connected to a second rotating seat, and the other end is rotatably installed with a polishing disc;

[0011] It also includes a cylinder installed on the moving seat and with its piston rod connected to the second rotating seat for controlling the distance between the second rotating seat and the stretching member. When the distance between the second rotating seat and the stretching member increases, the flexible self-locking member can expand and rotate on the second rotating seat, so that the polishing disc fits on the inner wall of the titanium alloy heat-insulated cup. When the fitting pressure of the polishing disc reaches a preset value, the flexible self-locking member realizes self-locking to keep the fitting pressure of the polishing disc in a constant pressing state.

[0012] The polishing machine for the cup body of a titanium alloy heat-insulated cup with constant pressing and tight fitting as described above: The rotating member includes a rotating cylinder installed on the moving seat and a first bearing provided at the end of the rotating cylinder away from the moving seat. The inner ring of the first bearing is slidably sleeved on the piston rod of the cylinder;

[0013] It also includes a connecting plate fixed on the rotating cylinder, a first rotating wheel rotatably installed at one end of the connecting plate and also rotatably sleeved on the rotating cylinder, a second rotating wheel rotatably installed at the other end of the connecting plate, and a belt for drivingly connecting the first rotating wheel and the second rotating wheel.

[0014] The polishing machine for the cup body of a titanium alloy heat-insulated cup with constant pressing and tight fitting as described above: The stretching member includes a first rotating seat fixed to the inner ring of the first bearing, a plurality of fixed shafts fixed on the first rotating seat, and a first connecting rod rotatably connected to the first rotating seat;

[0015] One end of the fixed shaft is fixed on the first rotating wheel.

[0016] The constant-pressure and tight-fitting polishing machine for the titanium alloy thermos cup body as described above: The flexible self-locking member includes a plugging cylinder rotatably connected at one end to the second rotating seat, a flexible mechanism slidably connected to the plugging cylinder, and a self-locking mechanism provided on the plugging cylinder and connected to the flexible mechanism;

[0017] One end of the plugging cylinder is rotatably connected to one end of the first connecting rod.

[0018] The constant-pressure and tight-fitting polishing machine for the titanium alloy thermos cup body as described above: The flexible mechanism includes a first spring disposed inside the plugging cylinder, a sliding column abutted against one end of the first spring and slidable inside the plugging cylinder, and a second connecting rod fixed to the sliding column. One end of the second connecting rod is rotatably connected to the polishing disc;

[0019] It further includes a sliding groove vertically opened on the sliding column and a positioning hole opened near one end of the second connecting rod on the sliding column. The positioning hole communicates with the sliding groove, and the depth of the positioning hole is deeper than that of the sliding groove.

[0020] The constant-pressure and tight-fitting polishing machine for the titanium alloy thermos cup body as described above: The self-locking mechanism includes a lifting frame slidable on the plugging cylinder, a positioning pin fixed to the lifting frame, an arc-shaped plate fixed to the lifting frame at the opposite end of the positioning pin, and a second spring with one end abutted against the arc-shaped plate;

[0021] The lifting frame is slidably inserted into a guiding groove correspondingly opened on the plugging cylinder. The other end of the second spring is abutted against the plugging cylinder, and the arc-shaped plate is in mating contact with the first connecting rod.

[0022] The constant-pressure and tight-fitting polishing machine for the titanium alloy thermos cup body as described above: A second bearing is provided on one side of the second rotating seat close to the first rotating seat. The outer ring of the second bearing is fixedly connected to the second rotating seat, and the inner ring of the second bearing is fixedly connected to the piston rod of the air cylinder.

[0023] The constant-pressure and tight-fitting polishing machine for the titanium alloy thermos cup body as described above: A first gear is coaxially fixed on the main shaft of the three-jaw chuck. The first gear meshes with a second gear, and a transmission shaft is fixed to the second gear. The transmission shaft rotates on the polishing table;

[0024] The transmission shaft is slidably sleeved with the second rotating wheel. A rotation-preventing groove is opened on the transmission shaft, and a rotation-preventing protrusion is provided on the inner wall of the second rotating wheel to cooperate with the rotation-preventing groove.

[0025] The constant-pressure and tight-fitting polishing machine for the titanium alloy thermos cup body as described above: A lead screw is rotatably connected to the polishing table below the transmission shaft. One end of the lead screw is fixed to the output shaft of the motor installed on the polishing table, and the lead screw is threadedly connected to the connecting block at the bottom of the moving seat.

[0026] The polishing method using the constant-pressure and tight-fitting polishing machine for the titanium alloy thermos cup body as described above includes the following steps:

[0027] Step 1: Clamp and fix the titanium alloy thermos cup using a three-jaw chuck. Start the motor installed on the polishing table, control the rotation of the lead screw, drive the adjustment of the moving seat to slide on the polishing table, and make the polishing disc extend into the titanium alloy thermos cup.

[0028] Step 2: Start the cylinder to act so that the piston rod extends, increasing the distance between the second rotating seat and the first rotating seat, and prompting the insertion cylinder to rotate and open on the second rotating seat.

[0029] Step 3: When the polishing disc abuts against the inner wall of the titanium alloy thermos cup, the piston rod of the cylinder continues to extend, forcing the sliding column in the insertion cylinder to move relatively towards the pre-compressed first spring side. At this time, the positioning pin slides in the chute.

[0030] Step 4: When the sliding column moves to the position where the positioning pin aligns with the positioning hole, the pre-compressed second spring rebounds and resets, causing the positioning pin to be inserted into the positioning hole, thereby restricting the fitting pressure of the polishing disc. At this time, the piston rod of the cylinder stops extending.

[0031] Step 5: Drive the clamped titanium alloy thermos cup to rotate through the action of the three-jaw chuck, and at the same time, the polishing disc rotates relatively to achieve the polishing of the inner wall of the titanium alloy thermos cup.

[0032] Compared with the prior art, the beneficial effects of the present invention are:

[0033] Through the provided polishing structure, when polishing the inner wall of the titanium alloy thermos cup, a constant-pressure and tight-fitting polishing effect can be achieved, thus meeting the polishing requirements of thermos cups of different specifications and sizes. Specifically, after the polishing disc extends into the thermos cup, the telescopic movement of the piston rod of the cylinder can adjust the unfolding angle of the flexible self-locking member connected by the tensile member on the second rotating seat, making the polishing disc closely fit the inner wall of the thermos cup. When the contact pressure between the polishing disc and the inner wall reaches the preset value, the self-locking mechanism will automatically position and lock the flexible mechanism, thereby ensuring that the contact pressure between the polishing disc and the inner wall remains constant.

[0034] The design of the constant-pressure tight-fitting polishing structure has greatly improved the consistency of polishing quality during the actual production process. Since it can ensure that the contact pressure between the polishing pad and the inner wall of the thermos cup always remains at a constant level, the polishing pad fits more tightly and evenly with the inner wall. This uniform contact method effectively avoids the problems of excessive or insufficient local polishing caused by pressure fluctuations, enabling the inner wall of each thermos cup to achieve a highly consistent smoothness, and greatly improving the overall quality and appearance of the product.

[0035] In addition, the constant-pressure tight-fitting polishing structure also has a positive impact on the service life of the polishing pad. Due to more precise and reasonable pressure control, the wear of the polishing pad becomes more uniform. This uniform wear method enables the polishing pad to maintain a good working state for a longer time, thus extending its service life. Description of the Drawings

[0036] Figure 1 Schematic diagram of the structure of the polishing machine for the titanium alloy thermos cup body with constant-pressure tight-fitting.

[0037] Figure 2 Schematic diagram of the structure of the polishing machine for the titanium alloy thermos cup body with constant-pressure tight-fitting from another perspective.

[0038] Figure 3 Schematic diagram of the structure of the polishing table in the polishing machine for the titanium alloy thermos cup body with constant-pressure tight-fitting.

[0039] Figure 4 Schematic diagram of the structure of the three-jaw chuck in the polishing machine for the titanium alloy thermos cup body with constant-pressure tight-fitting.

[0040] Figure 5 Schematic diagram of the structure of the polishing structure in the polishing machine for the titanium alloy thermos cup body with constant-pressure tight-fitting.

[0041] Figure 6 Schematic diagram of the structure of the moving seat in the polishing machine for the titanium alloy thermos cup body with constant-pressure tight-fitting.

[0042] Figure 7 Schematic diagram of the structure of the tension member and the flexible self-locking member in the polishing machine for the titanium alloy thermos cup body with constant-pressure tight-fitting.

[0043] Figure 8 Schematic diagram of the structure of the transmission shaft in the polishing machine for the titanium alloy thermos cup body with constant-pressure tight-fitting.

[0044] Figure 9 Schematic diagram of the enlarged structure of the tension member and the flexible self-locking member in the polishing machine for the titanium alloy thermos cup body with constant-pressure tight-fitting.

[0045] Figure 10It is a schematic structural diagram of a tensile member in a polishing machine for the cup body of a titanium alloy heat-insulated cup with constant pressing and tight fitting.

[0046] Figure 11 It is a schematic structural diagram of a flexible self-locking member in a polishing machine for the cup body of a titanium alloy heat-insulated cup with constant pressing and tight fitting.

[0047] Figure 12 It is a schematic structural diagram of the cross-section of a flexible self-locking member in a polishing machine for the cup body of a titanium alloy heat-insulated cup with constant pressing and tight fitting.

[0048] Figure 13 It is a schematic structural diagram of the disassembled flexible self-locking member in a polishing machine for the cup body of a titanium alloy heat-insulated cup with constant pressing and tight fitting.

[0049] Figure 14 It is a schematic structural diagram of a self-locking mechanism in a polishing machine for the cup body of a titanium alloy heat-insulated cup with constant pressing and tight fitting.

[0050] Figure 15 It is a schematic structural diagram of a flexible self-locking member during polishing in a polishing machine for the cup body of a titanium alloy heat-insulated cup with constant pressing and tight fitting.

[0051] In the figure: 1. Polishing table; 2. Three-jaw chuck; 3. First gear; 4. Second gear; 5. Transmission shaft; 6. Lead screw; 7. Moving seat; 8. Cylinder; 9. Rotating cylinder; 10. First bearing; 11. Connecting plate; 12. First rotating wheel; 13. Belt; 14. Second rotating wheel; 15. Fixed shaft; 16. First rotating seat; 17. First connecting rod; 18. Insertion cylinder; 19. Second rotating seat; 20. Second bearing; 21. First spring; 22. Sliding column; 23. Chute; 24. Positioning hole; 25. Second connecting rod; 26. Polishing disc; 27. Lifting frame; 28. Positioning pin; 29. Arc plate; 30. Second spring. Specific embodiments

[0052] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0053] Please refer to Figures 1 to 5 , in the embodiments of the present invention, a polishing machine for the cup body of a titanium alloy heat-insulated cup with constant pressing and tight fitting includes a polishing table 1 and a three-jaw chuck 2 installed on the polishing table 1. A polishing structure is provided on the polishing table 1, and the polishing structure includes:

[0054] A moving seat 7 provided on the polishing table 1 and a rotating member installed on the moving seat 7, and a tensile member is connected to the rotating member;

[0055] A flexible self-locking member rotatably connected to the stretching member, one end of the flexible self-locking member is rotatably connected to a second rotating seat 19, and the other end is rotatably installed with a polishing disc 26;

[0056] It further includes a cylinder 8 installed on the moving seat 7 and the piston rod of which is connected to the second rotating seat 19 for controlling the distance between the second rotating seat 19 and the stretching member. When the distance between the second rotating seat 19 and the stretching member increases, the flexible self-locking member can rotate outwards on the second rotating seat 19, so that the polishing disc 26 fits against the inner wall of the titanium alloy thermos cup. When the fitting pressure of the polishing disc 26 reaches a preset value, the flexible self-locking member realizes self-locking to keep the fitting pressure of the polishing disc 26 in a constant pressing state.

[0057] In this embodiment, during the process of polishing the inner wall of the titanium alloy thermos cup, by firmly clamping the titanium alloy thermos cup on the three-jaw chuck 2, the stability of the thermos cup during the polishing process is ensured, avoiding uneven polishing or damage caused by the shaking of the thermos cup. Subsequently, by precisely controlling the sliding adjustment of the moving seat 7 on the polishing table 1, the polishing disc 26 is accurately placed in the cavity of the titanium alloy thermos cup. When the piston rod of the cylinder 8 starts to expand and contract, it controls the distance between the second rotating seat 19 and the stretching member. This adjustment of the distance is the key to realizing the close fitting of the polishing disc 26 and the inner wall of the thermos cup. Since the position of the stretching member is relatively fixed, and the flexible self-locking member is both rotatably connected to the second rotating seat 19 and connected to the stretching member, when the second rotating seat 19 moves away from the stretching member, the flexible self-locking member will rotate outwards on the second rotating seat 19. This rotation process enables the polishing disc 26 to closely fit against the inner wall of the titanium alloy thermos cup, thereby providing the necessary contact pressure for the polishing operation;

[0058] When the fitting pressure between the polishing pad 26 and the inner wall of the titanium alloy thermos cup reaches the preset value, the piston rod of the air cylinder 8 stops telescoping. This stop action ensures that the distance between the second rotating seat 19 and the stretching part remains in the limited state. At this time, the flexible self-locking part realizes self-locking, so that the overall length of the flexible self-locking part and the rotation and unfolding angle on the second rotating seat 19 are fixed. This self-locking mechanism is the key to ensuring a constant contact pressure during the polishing process. Since the fitting pressure between the polishing pad 26 and the inner wall of the thermos cup remains constant, when the three-jaw chuck 2 drives the titanium alloy thermos cup to rotate, the polishing pad 26 can polish the inner wall of the thermos cup with a constant contact pressure. This constant contact pressure is crucial for improving the polishing effect. It can not only ensure the uniformity of the polishing process and avoid local over-polishing or under-polishing caused by pressure fluctuations, but also significantly improve the consistency of the polishing quality. In the traditional polishing process, due to the difficulty of maintaining a constant contact pressure, uneven polishing often occurs, especially when processing thermos cups with different diameter sizes. This problem is more prominent. After adopting this polishing technology with constant pressing and fitting, regardless of the diameter of the thermos cup, it can ensure that the contact pressure between the polishing pad 26 and the inner wall always remains in the best state, thus achieving an ideal polishing effect.

[0059] Please refer to Figures 2 to 8 As a further solution of the present invention, the rotating part includes a rotating cylinder 9 installed on the moving seat 7 and a first bearing 10 arranged at one end of the rotating cylinder 9 away from the moving seat 7. The inner ring of the first bearing 10 is slidably sleeved on the piston rod of the air cylinder 8;

[0060] It further includes a connecting plate 11 fixed on the rotating cylinder 9, a first rotating wheel 12 rotatably arranged at one end of the connecting plate 11 and also rotatably sleeved on the rotating cylinder 9, a second rotating wheel 14 rotatably arranged at the other end of the connecting plate 11, and a belt 13 for drivingly connecting the first rotating wheel 12 and the second rotating wheel 14.

[0061] A first gear 3 is coaxially fixed on the main shaft of the three-jaw chuck 2. The first gear 3 meshes with a second gear 4. A transmission shaft 5 is fixed on the second gear 4. The transmission shaft 5 rotates on the polishing table 1;

[0062] The transmission shaft 5 is slidably sleeved with the second rotating wheel 14. A non-rotating groove is formed on the transmission shaft 5, and a non-rotating protrusion is arranged on the inner wall of the second rotating wheel 14 to cooperate with the non-rotating groove

[0063] In this embodiment, during the polishing process of the titanium alloy vacuum cup, the precise movement control of the three-jaw chuck 2 is one of the key factors to ensure the polishing quality and efficiency. The movement of the three-jaw chuck 2 can accurately drive the transmission shaft 5 to move through the cooperation of the first gear 3 and the second gear 4. This gear transmission method not only realizes the effective transmission of power, but also makes the rotation directions of the three-jaw chuck 2 and the transmission shaft 5 opposite through the meshing of the first gear 3 and the second gear 4. The sliding sleeve relationship between the transmission shaft 5 and the second rotating wheel 14, and the mating connection between the anti-rotation protrusion on the inner wall of the second rotating wheel 14 and the anti-rotation groove on the transmission shaft 5 ensure that when the transmission shaft 5 rotates, the second rotating wheel 14 can rotate synchronously. The connecting plate 11 is slidably sleeved on the transmission shaft 5. This design not only provides stable support for the moving seat 7, but also ensures that when the moving seat 7 moves along the polishing table 1, the second rotating wheel 14 and the transmission shaft 5 can maintain a stable transmission connection, enabling the power to be effectively transmitted to the first rotating wheel 12 through the belt 13, and then driving the first rotating wheel 12 to rotate on the rotating cylinder 9.

[0064] Please refer to Figure 10 , as a further solution of the present invention, the stretching member includes a first rotating seat 16 fixed to the inner ring of the first bearing 10, a plurality of fixed shafts 15 fixed on the first rotating seat 16, and a first connecting rod 17 rotatably connected to the first rotating seat 16;

[0065] One end of the fixed shaft 15 is fixed on the first rotating wheel 12.

[0066] In this embodiment, a sleeve is fixed on one side of the first rotating seat 16, and it is fixedly connected to the inner ring of the first bearing 10 through the sleeve, and the fixed shaft 15 fixed on the first rotating seat 16 is fixedly connected to the first rotating wheel 12. This design ensures that when the first rotating wheel 12 rotates, the first rotating seat 16 can be driven to rotate synchronously at one end of the rotating cylinder 9 through the fixed shaft 15. This linkage mechanism not only realizes the effective transmission of power, but also ensures the coordinated movement of each component during the polishing process, thus meeting the precise requirements of the subsequent polishing actions.

[0067] Please refer to Figures 11 to 14 , as a further solution of the present invention, the flexible self-locking member includes a plugging cylinder 18 rotatably connected at one end to the second rotating seat 19, a flexible mechanism slidably connected to the plugging cylinder 18, and a self-locking mechanism provided on the plugging cylinder 18 and connected to the flexible mechanism;

[0068] The plugging cylinder 18 is rotatably connected to one end of the first connecting rod 17.

[0069] The flexible mechanism includes a first spring 21 disposed inside the insertion cylinder 18, a sliding column 22 that abuts against one end of the first spring 21 and slides inside the insertion cylinder 18, and a second connecting rod 25 fixed to the sliding column 22. One end of the second connecting rod 25 is rotatably connected to the polishing disc 26;

[0070] It further includes a chute 23 vertically formed on the sliding column 22 and a positioning hole 24 formed on the sliding column 22 near one end of the second connecting rod 25. The positioning hole 24 communicates with the chute 23, and the depth of the positioning hole 24 is deeper than that of the chute 23.

[0071] The self-locking mechanism includes a lifting frame 27 sliding on the insertion cylinder 18, a positioning pin 28 fixed to the lifting frame 27, an arc-shaped plate 29 fixed to the lifting frame 27 at the opposite end of the positioning pin 28, and a second spring 30 with one end abutting against the arc-shaped plate 29;

[0072] The lifting frame 27 is slidably inserted into a corresponding guiding groove formed on the insertion cylinder 18. The other end of the second spring 30 abuts against the insertion cylinder 18, and the arc-shaped plate 29 cooperates and abuts against the first connecting rod 17.

[0073] In this embodiment, one end of the insertion cylinder 18 is rotatably connected to the first connecting rod 17 and is also rotatably connected to the second rotating seat 19. This dual rotational connection relationship enables the insertion cylinder 18 to rotate flexibly on the second rotating seat 19. The other end of the first connecting rod 17 is rotatably connected to the first rotating seat 16, and the position of the first rotating seat 16 on the rotating cylinder 9 remains relatively fixed. The combination of this fixation and rotation ensures that the length of the first connecting rod 17 remains unchanged during movement. When the piston rod of the air cylinder 8 expands and contracts, the second rotating seat 19 is controlled to move away from the first rotating seat 16. At this time, the first connecting rod 17 will exert a pulling effect on the insertion cylinder 18, and the rotational connection relationship between the insertion cylinder 18 and the second rotating seat 19 enables the insertion cylinder 18 to rotate and expand on the second rotating seat 19. This rotational expansion action is a key step for the polishing disc 26 to expand outward. A second connecting rod 25 is fixed to the sliding column 22 slidably connected inside the insertion cylinder 18, and the polishing disc 26 is rotatably mounted on the second connecting rod 25. Therefore, when the insertion cylinder 18 rotates and expands on the second rotating seat 19, the second connecting rod 25 will drive the polishing disc 26 to expand outward so that it can closely abut against the inner wall of the titanium alloy thermos cup;

[0074] When the acting force on the sliding column 22 generated by the fitting pressure of the polishing sheet 26 is greater than the resilience of the first spring 21, the sliding column 22 will be forced to slide relatively toward the side of the pre-compressed first spring 21. The sliding groove 23 formed on the sliding column 22 is slidably inserted with the positioning pin 28, and the positioning pin 28 is inserted into the insertion cylinder 18 perpendicular to the radial direction of the insertion cylinder 18. This design enables the sliding insertion of the positioning pin 28 in the sliding groove 23 to limit the rotation of the sliding column 22 when it slides in the insertion cylinder 18, thereby ensuring the accuracy of the movement direction of the sliding column 22;

[0075] When the sliding column 22 slides to align the positioning hole 24 with the positioning pin 28, the positioning pin 28 will be inserted into the positioning hole 24 under the resilience of the second spring 30. At this time, the piston rod of the cylinder 8 stops telescoping and maintains a fixed length, and the combined length of the insertion cylinder 18 and the second connecting rod 25 is fixed under the insertion limit of the positioning pin 28 and the positioning hole 24. At this time, the fitting pressure of the polishing sheet 26 on the titanium alloy thermos cup remains constant. Since the pressure for the sliding column 22 to trigger the self-locking effect when sliding in the insertion cylinder 18 is a constant value, when polishing titanium alloy thermos cups with different specifications of diameters, as long as the insertion limit of the positioning pin 28 and the positioning hole 24 is achieved, the contact pressure between the polishing sheet 26 and the inner wall will remain constant, thus meeting the polishing use requirements;

[0076] After polishing is completed, the piston rod of the cylinder 8 retracts, and the polishing sheet 26 will disengage from the inner wall. However, the combined length of the insertion cylinder 18 and the second connecting rod 25 does not immediately reset, but remains the previous length under the combined insertion limit of the positioning hole 24 and the positioning pin 28. When the piston rod of the cylinder 8 continues to retract, finally the first connecting rod 17 presses on the arc-shaped plate 29, forcing the arc-shaped plate 29 to move toward the positioning pin 28 direction, causing the second spring 30 to be squeezed and contracted to maintain the resilience. At this time, the lifting frame 27 slides on the insertion cylinder 18, the positioning pin 28 disengages from the insertion with the positioning hole 24, and the top of the positioning pin 28 is at the contact surface part of the sliding groove 23. The sliding column 22 loses the limit, and under the resilience of the first spring 21, the sliding column 22 rebounds and resets inside the insertion cylinder 18. At this time, the positioning pin 28 will abut against one end of the sliding groove 23 away from the positioning hole 24, waiting for the next constant pressure limiting action.

[0077] Please refer to Figure 11 As a further solution of the present invention, a second bearing 20 is provided on one side of the second rotating seat 19 close to the first rotating seat 16. The outer ring of the second bearing 20 is fixedly connected to the second rotating seat 19, and the inner ring of the second bearing 20 is fixedly connected to the piston rod of the cylinder 8.

[0078] In this embodiment, the inner ring of the second bearing 20 is fixedly connected to the top end of the piston rod of the cylinder 8. This connection method enables the second rotating seat 19 to rotate around the top end of the piston rod of the cylinder 8. This design not only provides stable support for the second rotating seat 19 but also ensures its stability during the telescopic movement of the piston rod of the cylinder 8.

[0079] Since the insertion cylinder 18 is rotatably connected to one end of the first connecting rod 17, and the other end of the first connecting rod 17 is rotatably connected to the first rotating seat 16, this structural design enables the first rotating seat 16 to rotate synchronously with the rotation of the first rotating wheel 12, and the second rotating seat 19 can rotate synchronously with the rotation of the first rotating seat 16. This linkage mechanism ensures the coordinated movement of all components during the entire polishing process, so that the polishing disc 26 rotatably mounted on the second connecting rod 25 fits against the inner wall of the titanium alloy thermos cup for polishing. Since the rotation direction of the polishing disc 26 is opposite to the rotation direction of the three-jaw chuck 2, the polishing efficiency of the polishing disc 26 on the inner wall of the titanium alloy thermos cup can be improved.

[0080] Please refer to Figure 1 、 Figure 2 and Figure 6 As a further solution of the present invention, a lead screw 6 is rotatably connected to the polishing table 1 below the transmission shaft 5. One end of the lead screw 6 is fixedly connected to the output shaft of the motor installed on the polishing table 1, and the lead screw 6 is threadedly connected to the connecting block at the bottom of the moving seat 7.

[0081] In this embodiment, one end of the lead screw 6 is fixedly connected to the output shaft of the motor provided on the polishing table 1. This direct power transmission method ensures that the lead screw 6 can rotate efficiently and stably. As the power source, the motor's precise speed control and stable output torque provide reliable power support for the rotation of the lead screw 6.

[0082] The connecting block at the bottom of the moving seat 7 is threadedly connected to the lead screw 6. This threaded connection method enables the moving seat 7 to achieve precise displacement adjustment according to the rotation of the lead screw 6. At the same time, the sliding direction of the moving seat 7 on the polishing table 1 is restricted and can only perform horizontal sliding. This design not only ensures the stability of the movement trajectory of the moving seat 7 but also avoids the problem of inaccurate positioning caused by multi-directional movement. When the lead screw 6 rotates, the moving seat 7 can smoothly approach or move away from the three-jaw chuck 2 on the polishing table 1. This precise displacement adjustment function enables the components provided on the moving seat 7 to be adjusted to extend into or retract from the cavity of the titanium alloy thermos cup as needed.

[0083] The polishing method using the above-mentioned titanium alloy thermos cup body polishing machine with constant pressing and fitting includes the following steps:

[0084] Step 1: Clamp and fix the titanium alloy thermos cup using the three-jaw chuck 2. Start the motor installed on the polishing table 1, control the rotation of the lead screw 6, drive the adjustment moving seat 7 to slide on the polishing table 1, and make the polishing disc 26 extend into the titanium alloy thermos cup;

[0085] Step 2: Start the cylinder 8 to act so that the piston rod extends, increasing the distance between the second rotating seat 19 and the first rotating seat 16, and prompting the insertion cylinder 18 to rotate and open on the second rotating seat 19;

[0086] Step 3: When the polishing disc 26 abuts against the inner wall of the titanium alloy thermos cup, the piston rod of the cylinder 8 continues to extend, forcing the sliding column 22 in the insertion cylinder 18 to move relatively towards the side of the pre-compressed first spring 21. At this time, the positioning pin 28 slides in the chute 23;

[0087] Step 4: When the sliding column 22 moves to the position where the positioning pin 28 aligns with the positioning hole 24, the pre-compressed second spring 30 rebounds and resets, causing the positioning pin 28 to be inserted into the positioning hole 24, thereby restricting the fitting pressure of the polishing disc 26. At this time, the piston rod of the cylinder 8 stops extending;

[0088] Step 5: Drive the clamped titanium alloy thermos cup to rotate through the action of the three-jaw chuck 2, and at the same time, the polishing disc 26 rotates relatively to achieve the polishing of the inner wall of the titanium alloy thermos cup.

[0089] The above embodiments are exemplary and not restrictive. Therefore, without departing from the spirit or basic characteristics of the present invention, all technical solutions that can implement the present invention in other specific forms are included in the present invention.

Claims

1. A constant pressure and tight fitting titanium alloy thermos cup body polishing machine, comprising a polishing table and a three-jaw chuck mounted on the polishing table, characterized in that: The polishing table is provided with a polishing structure, which includes: A moving seat arranged on the polishing table and a rotating member installed on the moving seat, wherein the rotating member is connected to a stretching member; A flexible self-locking member rotatably connected to the stretching member, one end of the flexible self-locking member is rotatably connected to a second rotating seat, and the other end of the flexible self-locking member is rotatably mounted with a polishing sheet; It also includes a cylinder installed on the movable seat and having a piston rod connected to the second rotating seat for controlling the distance between the second rotating seat and the stretching member. When the distance between the second rotating seat and the stretching member increases, the flexible self-locking member can rotate outward on the second rotating seat to make the polishing sheet fit against the inner wall of the titanium alloy thermos cup. When the fitting pressure of the polishing sheet reaches a preset value, the flexible self-locking member is self-locking to keep the fitting pressure of the polishing sheet in a constant compression state.

2. The constant pressure tight fitting titanium alloy insulation cup body polishing machine according to claim 1 is characterized in that: The rotating member comprises a rotating cylinder mounted on the moving seat and a first bearing arranged at one end of the rotating cylinder away from the moving seat, and the inner ring of the first bearing is slidingly sleeved on the piston rod of the cylinder; It also includes a connecting plate fixed on the rotating drum, a first rotating wheel rotating on one end of the connecting plate and rotatably sleeved on the rotating drum, a second rotating wheel rotating on the other end of the connecting plate, and a belt for transmitting and connecting the first rotating wheel and the second rotating wheel.

3. The constant pressure tight fitting titanium alloy insulation cup body polishing machine according to claim 2 is characterized in that: The stretching member includes a first rotating seat fixed to the inner ring of the first bearing, a plurality of fixed shafts fixed to the first rotating seat, and a first connecting rod rotatably connected to the first rotating seat; One end of the fixed shaft is fixed on the first rotating wheel.

4. The constant pressure tight fitting titanium alloy insulation cup body polishing machine according to claim 3 is characterized in that: The flexible self-locking member comprises a plug-in cylinder with one end rotating on the second rotating seat, a flexible mechanism slidably connected to the plug-in cylinder, and a self-locking mechanism arranged on the plug-in cylinder and connected to the flexible mechanism; The plug-in sleeve is rotatably connected to one end of the first connecting rod.

5. The constant pressure tight fitting titanium alloy insulation cup body polishing machine according to claim 4 is characterized in that: The flexible mechanism includes a first spring arranged inside the plug-in cylinder, a sliding column which abuts against one end of the first spring and slides inside the plug-in cylinder, and a second connecting rod fixed on the sliding column, one end of the second connecting rod being rotatably connected to the polishing sheet; It also includes a slide groove vertically opened on the sliding column and a positioning hole opened on the sliding column close to one end of the second connecting rod. The positioning hole is connected with the slide groove, and the depth of the positioning hole is deeper than the slide groove.

6. The constant pressure tight fitting titanium alloy thermos cup body polishing machine according to claim 4 is characterized in that: The self-locking mechanism includes a lifting frame sliding on the plug-in cylinder, a positioning pin fixed on the lifting frame, an arc plate fixed on the lifting frame at the opposite end of the positioning pin, and a second spring with one end abutting against the arc plate; The lifting frame is slidably inserted into a guide groove correspondingly provided on the plug-in tube, the other end of the second spring abuts against the plug-in tube, and the arc plate cooperates with and abuts against the first connecting rod.

7. The constant pressure tight fitting titanium alloy insulation cup body polishing machine according to claim 3 is characterized in that: A second bearing is arranged on one side of the second rotating seat close to the first rotating seat, the outer ring of the second bearing is fixedly connected to the second rotating seat, and the inner ring of the second bearing is fixedly connected to the piston rod of the cylinder.

8. The constant pressure tight fitting titanium alloy insulation cup body polishing machine according to claim 2 is characterized in that: A first gear is coaxially fixed on the main shaft of the three-jaw chuck, the first gear is meshed with the second gear, a transmission shaft is fixed on the second gear, and the transmission shaft rotates on the polishing table; The transmission shaft and the second rotating wheel are slidably sleeved, a rotation-stopping groove is provided on the transmission shaft, and a rotation-stopping protrusion is provided on the inner wall of the second rotating wheel to match the rotation-stopping groove.

9. The constant pressure tight fitting titanium alloy insulation cup body polishing machine according to claim 8 is characterized in that: A screw rod is rotatably connected on the polishing table below the transmission shaft, one end of the screw rod is fixed to the output shaft of the motor installed on the polishing table, and the screw rod is threadedly connected to the connecting block at the bottom of the moving seat.

10. The polishing method of the constant pressure tight fitting titanium alloy thermos cup body polishing machine according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Use a three-jaw chuck to clamp and fix the titanium alloy thermos cup, start the motor installed on the polishing table, control the screw to rotate, drive the adjustment movable seat to slide on the polishing table, and extend the polishing sheet into the titanium alloy thermos cup; Step 2: Start the cylinder to extend the piston rod, increase the distance between the second rotating seat and the first rotating seat, and make the plug-in tube rotate and open on the second rotating seat; Step 3: When the polishing sheet contacts the inner wall of the titanium alloy thermos cup, the piston rod of the cylinder continues to extend, forcing the sliding column in the plug-in tube to move relatively toward the side of the pre-compressed first spring, and the positioning pin slides in the slide groove; Step 4: When the sliding column moves to the position where the positioning pin is aligned with the positioning hole, the pre-compressed second spring rebounds and resets, so that the positioning pin is inserted into the positioning hole, thereby limiting the fitting pressure of the polishing sheet, and at this time, the piston rod of the cylinder stops extending; Step 5: The three-jaw chuck drives the clamped titanium alloy thermos cup to rotate, and the polishing sheet rotates relatively at the same time to polish the inner wall of the titanium alloy thermos cup.

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