A titanium alloy article surface treatment apparatus

Abstract

A titanium alloy product surface treatment device belongs to the technical field of titanium alloy product surface repair, which comprises a base, a supporting frame is fixedly installed on the upper surface of the base, a polishing mechanism capable of adjusting polishing height is arranged in the supporting frame, a T-shaped feeding table is transversely and slidably installed on the upper surface of the base, two directional rods are fixedly installed on the upper surface of the T-shaped feeding table, a supporting table is interactively installed between the other directional rods, a compression spring is fixedly installed between the right surface of the supporting table and the right upper end of the T-shaped feeding table, a driving mechanism is installed on the left side of the T-shaped feeding table, an adaptive carrier mold is detachably installed on the upper surface of the supporting table, and a carrier groove lower than the thickness of the carrier is arranged on the upper surface of the adaptive carrier mold. The single contact mode of the prior art linear stable feeding is changed, the contact points of the workpiece and the polishing mechanism are dynamically switched, the polishing pressure is uniformly dispersed to the whole surface to be treated, and the problem of local concentration of the polishing pressure of the existing device is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of surface repair technology for titanium alloy products, and specifically to a surface treatment device for titanium alloy products. Background Technology

[0002] In high-end manufacturing fields such as aerospace and medical implants, titanium alloys, with their excellent strength-to-weight ratio, corrosion resistance, and biocompatibility, have become the core material for manufacturing key components (such as aero-engine blades, fuselage load-bearing structural components, artificial joint prostheses, and orthopedic implant plates). These titanium alloy products have extremely stringent requirements for surface quality. Not only must surface treatment remove machining allowances, eliminate surface defects, and precisely control roughness, but improper treatment methods must also prevent surface integrity damage, localized oxidation, and impurity residues. For example, in aerospace-grade titanium alloy components with complex curved surfaces, the presence of stress concentration or an oxide layer on the surface directly affects the component's fatigue life; in medical implants, residual grinding debris or microscopic scratches may trigger rejection reactions in human tissue. Therefore, efficient and high-quality surface treatment technology has become a critical industry requirement.

[0003] To meet the above surface quality requirements, the industry commonly uses grinding wheels or abrasive belts to grind the surface of titanium alloy products. However, existing grinding equipment has significant technical shortcomings: Firstly, most devices adopt a "fixed posture + linear stable feed" operation mode, that is, the grinding wheel or sanding belt keeps a stationary position and only moves in contact with the workpiece surface along a preset straight trajectory. In this mode, the grinding pressure is easily concentrated in a local area. Especially for titanium alloy workpieces with complex curved surfaces, uneven contact stress can easily lead to damage to the surface microstructure and affect the mechanical properties of the component.

[0004] Secondly, the grinding contact point is fixed during linear feed, and heat cannot be effectively dispersed, which easily forms local high temperature zones. This not only causes an oxide layer to form on the surface of the titanium alloy, but may also lead to abrasive "passivation" (the grinding efficiency drops sharply after the abrasive grains become blunt, and the workpiece surface is easily scratched).

[0005] Third, the unidirectional linear grinding trajectory easily causes debris to accumulate and stick on the workpiece surface, which is not only difficult to clean, but may also clog the abrasive gaps and shorten the service life of the abrasive. At the same time, unidirectional grinding marks can also cause uneven accumulation and reduced adhesion when subsequent coatings are applied, which can easily lead to coating cracking and peeling, affecting the protective performance and appearance of the product. Fourth, the existing workpiece fixing structure is mostly a general design, which is difficult to adapt to titanium alloy products of different shapes. When changing workpieces, the positioning mechanism needs to be readjusted, which is cumbersome and the positioning accuracy is difficult to guarantee, thus restricting the processing efficiency and consistency.

[0006] In view of the shortcomings of the existing technology, there is an urgent need for a surface treatment device for titanium alloy products that can achieve uniform grinding pressure, disperse contact heat, and flexibly adapt to workpieces of different shapes, so as to solve the surface treatment problem of key titanium alloy components in the high-end manufacturing field. Utility Model Content

[0007] The purpose of this invention is to provide a surface treatment device for titanium alloy products to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a surface treatment device for titanium alloy products, comprising a base, a support frame fixedly installed on the upper surface of the base, a grinding mechanism with adjustable grinding height provided inside the support frame, a T-shaped feeding table slidably installed laterally on the upper surface of the base, the T-shaped feeding table being located below the grinding mechanism, and two directional rods fixedly installed on the upper surface of the T-shaped feeding table, with a support platform interactively installed between the other directional rods, a compression spring fixedly installed between the right surface of the support platform and the upper right end of the T-shaped feeding table, a drive mechanism installed on the left side of the T-shaped feeding table, the drive mechanism cooperating with the compression spring to drive the support platform to perform left and right cyclical movement, and an adaptable carrier mold detachably installed on the upper surface of the support platform, the upper surface of the adaptable carrier mold being provided with a carrier groove lower than the thickness of the carrier.

[0009] Preferably, the grinding mechanism includes a roller frame, a shaft is fixedly installed at the rear end of the roller frame, the shaft is rotatably installed in a support frame, a grinding roller is rotatably installed at the front end of the roller frame, and a grinding sanding belt is bonded to the outer surface of the grinding roller by pressure-sensitive adhesive.

[0010] Preferably, a grinding motor is fixedly installed on the right surface of the roller frame, and the output end of the grinding motor is fixedly connected to the rear end of the grinding roller.

[0011] Preferably, a hydraulic telescopic rod is provided between the roller frame and the support frame, and hinge seats are rotatably installed at the front and rear ends of the hydraulic telescopic rod, and the two hinge seats are fixedly connected to the roller frame and the support frame respectively.

[0012] Preferably, a contact rod is fixedly installed on the left surface of the support platform, and the end of the contact rod facing away from the support platform is a spherical surface; The driving mechanism includes a stepper motor, which is fixedly mounted on the lower left side of the T-shaped feeding table via a bracket. A camshaft is fixedly mounted on the output end of the stepper motor via a coupling. The camshaft is rotatably mounted on the left end of the T-shaped feeding table, and a cam is sleeved on the outer surface of the camshaft. A groove is provided on the outer surface of the cam, and the spherical surface of the contact rod is in contact with the inner surface of the groove.

[0013] Preferably, a rack plate is fixedly installed on the upper surface of the base, and an installation groove is provided on the lower surface of the T-shaped feeding table. A walking motor is fixedly installed in the installation groove, and a gear is sleeved on the outer surface of the output shaft of the walking motor. The gear meshes with the rack plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are: This invention features a left-right cyclic motion structure consisting of a drive mechanism, a compression spring, and a support platform. The stepper motor in the drive mechanism drives the cam to rotate, which in turn drives the support platform and the titanium alloy workpiece to perform regular left-right cyclic motion. This changes the single contact mode of linear and stable feeding in existing technologies, allowing the contact point between the workpiece and the grinding mechanism to switch dynamically. This distributes the grinding pressure evenly across the entire surface to be treated, effectively solving the problem of localized grinding pressure concentration in existing devices. It is especially suitable for complex curved titanium alloy components used in aerospace, avoiding localized stress concentration that could damage surface integrity and ensuring the mechanical properties of the components. Meanwhile, the left-right circular motion design of the support platform allows the grinding contact point to shift in real time along the motion trajectory, so that the heat generated during the grinding process is dispersed synchronously with the contact position. This breaks the local high temperature dilemma caused by the fixed contact point in the existing technology. On the one hand, it reduces the formation of oxide layer on the surface of titanium alloy and reduces the risk of oxidation. On the other hand, it avoids the "passivation" phenomenon of abrasive due to long-term exposure to high temperature environment, ensuring stable grinding efficiency. At the same time, it prevents passivation from scratching the surface of the workpiece and improves the surface treatment quality.

[0015] In addition, by setting up a grinding height adjustment structure of "hydraulic telescopic rod + roller frame + shaft", the extension and retraction of the hydraulic telescopic rod can drive the roller frame to rotate around the shaft axis, thereby adjusting the height of the grinding roller. Compared with the limitations of existing grinding mechanisms with fixed height and difficulty in adapting to workpieces of different thicknesses, this can meet the grinding needs of various titanium alloy products and expand the applicability of the device. At the same time, in conjunction with the T-shaped feeding table moving structure of "rack plate + walking motor + gear", the workpiece feeding position and speed can be controlled, further improving the accuracy and automation level of surface treatment. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present invention.

[0017] Figure 2 This is a schematic diagram of the main structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the T-shaped feeding table structure of this utility model.

[0019] In the diagram: 1. Base; 11. Slide rail; 12. Rack plate; 2. Support frame; 3. Grinding mechanism; 31. Roller frame; 311. Shaft; 32. Grinding roller; 33. Grinding sanding belt; 34. Grinding motor; 35. Hydraulic telescopic rod; 351. Hinge seat; 4. T-shaped feeding table; 41. Directional rod; 42. Compression spring; 43. Mounting slot; 5. Support platform; 51. Adaptive carrier mold; 52. Contact rod; 6. Drive mechanism; 61. Stepper motor; 62. Camshaft; 63. Cam; 7. Travel motor; 71. Gear. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] Please see Figure 1 , Figure 2 and Figure 3 This utility model provides a technical solution: A surface treatment device for titanium alloy products includes a base 1, a support frame 2 fixedly mounted on the upper surface of the base 1, a grinding mechanism 3 with adjustable grinding height disposed inside the support frame 2, a T-shaped feeding table 4 laterally slidably mounted on the upper surface of the base 1, the T-shaped feeding table 4 being located below the grinding mechanism 3, and two directional rods 41 fixedly mounted on the upper surface of the T-shaped feeding table 4, with a support platform 5 interactively mounted between the other directional rods 41, a compression spring 42 fixedly mounted between the right surface of the support platform 5 and the upper right end of the T-shaped feeding table 4, a drive mechanism 6 mounted on the left side of the T-shaped feeding table 4, the drive mechanism 6 cooperating with the compression spring 42 to drive the support platform 5 to perform left and right cyclical movement, and an adapter mold 51 detachably mounted on the upper surface of the support platform 5, the upper surface of the adapter mold 51 being provided with a loading groove lower than the thickness of the loading part.

[0022] Two slide rails 11 are fixedly installed on the upper surface of the base 1 by bolts. The lower surface of the T-shaped feeding table 4 is provided with a slide groove that matches the slide rails 11. The T-shaped feeding table 4 is slidably installed between the two slide rails 11 through the slide groove, and is slidably mounted on the base 1 in this way.

[0023] The adapter mold 51 is connected to the support platform 5 by bolts. The adapter mold 51 can be selected and installed on the support platform 5 according to the shape of the titanium alloy product to be processed.

[0024] Before use, adjust the grinding end of the grinding mechanism 3 to a suitable height. When using, embed the titanium alloy product to be processed into the carrier slot of the matching carrier mold 51 for positioning. Then, start the grinding mechanism 3 and the drive mechanism 6. The drive mechanism 6, in conjunction with the compression spring 42, drives the support table 5 to move horizontally left and right in a circular motion. Then, move the T-shaped feeding table 4 towards the grinding area. When the titanium alloy product contacts the grinding end of the grinding mechanism 3, the linear contact changes to horizontal contact.

[0025] The workpiece continuously adjusts the contact point through lateral movement, so that the grinding pressure is evenly distributed to the entire surface to be treated. It is especially suitable for complex curved surfaces of titanium alloys (such as titanium alloy components for aerospace), avoiding local stress concentration that could damage the surface integrity.

[0026] The left and right horizontal movement dynamically switches the contact point, and the heat is dispersed as the contact position changes, reducing local high temperature areas and reducing the risk of oxidation. At the same time, it avoids the abrasive from "passivating" due to high temperature (after the abrasive grains become dull, the grinding efficiency drops sharply and it will also scratch the surface of the workpiece).

[0027] Combination Figure 1 As shown, the grinding mechanism 3 includes a roller frame 31. A shaft 311 is fixedly installed at the rear end of the roller frame 31. The shaft 311 is rotatably installed in the support frame 2. A grinding roller 32 is rotatably installed at the front end of the roller frame 31. A grinding belt 33 is bonded to the outer surface of the grinding roller 32 by pressure-sensitive adhesive. A grinding motor 34 is fixedly installed on the right surface of the roller frame 31. The output end of the grinding motor 34 is fixedly connected to the rear end of the grinding roller 32. The grinding motor 34 drives the grinding roller 32 to move, thereby driving the grinding belt 33 to perform a grinding action. A hydraulic telescopic rod 35 is provided between the roller frame 31 and the support frame 2. The front and rear ends of the hydraulic telescopic rod 35 are respectively rotatably mounted with hinge seats 351. The two hinge seats 351 are fixedly connected to the roller frame 31 and the support frame 2 respectively. In actual use, the roller frame 31 can be rotated around the axis of the shaft rod 311 by the extension and retraction of the hydraulic telescopic rod 35, thereby adjusting and changing the downward pressure height of the grinding roller 32 to meet the grinding needs of titanium alloy purple workpieces of different thicknesses.

[0028] It should be noted that, in combination Figure 2 As shown, a contact rod 52 is fixedly installed on the left surface of the support platform 5. The end of the contact rod 52 facing away from the support platform 5 is a spherical surface. The drive mechanism 6 includes a stepper motor 61. The stepper motor 61 is fixedly installed on the lower left side of the T-shaped feeding platform 4 by a bracket. The output end of the stepper motor 61 is fixedly installed with a camshaft 62 by a coupling. The camshaft 62 is rotatably installed through the left end of the T-shaped feeding platform 4. A cam 63 is sleeved on the outer surface of the camshaft 62. A groove is provided on the outer surface of the cam 63. The spherical surface of the contact rod 52 is in contact with the inner surface of the groove.

[0029] When the stepper motor 61 starts working, its output end will smoothly transmit power to the camshaft 62 through a high-precision coupling. Since the camshaft 62 is installed through and rotatably on the left end of the T-shaped feeding table 4, under the drive of the stepper motor 61, the camshaft 62 will drive the cam 63 sleeved on its outer surface to rotate synchronously.

[0030] It is worth noting that the groove specially designed on the outer surface of the cam 63 and the spherical surface of the contact rod 52 always maintain a close fit. This structural design not only reduces frictional loss when the two are in contact, but also ensures the stability of power transmission and avoids jamming or deviation. During the rotation of cam 63, its motion trajectory exerts a regular force on contact rod 52. When cam 63 rotates for the first half revolution, the contour of the groove gradually applies a rightward thrust to contact rod 52. Since contact rod 52 is fixedly installed on the left surface of support platform 5, and the end of contact rod 52 facing away from support platform 5 is a spherical surface, it can more smoothly adapt to the motion trajectory of the groove. Therefore, under the action of thrust, contact rod 52 will stably drive support platform 5 to move to the right. During the movement, the cooperation structure between support platform 5 and T-shaped feeding table 4 can ensure the accuracy of its movement direction and avoid lateral deviation. When cam 63 rotates to the second half of its rotation, the rightward pushing force of the groove on contact rod 52 gradually disappears. At this time, the compression spring 42, which is in a pre-compressed state, releases its elastic potential energy, generating a leftward reset force on support platform 5. Driven by this force, support platform 5 will smoothly reset to the left along its original movement path until the spherical surface of contact rod 52 contacts the initial contact position of the groove of cam 63 again, completing one complete movement cycle. Through the continuous and stable operation of stepper motor 61, cam 63 will continuously repeat the above rotation process, thereby driving support platform 5 to achieve continuous, regular, and stable left-right cyclic movement. This action can meet the requirements of T-shaped feeding table 4 for the movement accuracy and frequency of support platform 5 in material conveying, processing positioning, and other scenarios.

[0031] Finally, to facilitate the moving and feeding of the T-shaped feeding table 4, combined with Figure 2 and Figure 3 As shown, a rack plate 12 needs to be fixedly installed on the upper surface of the base 1, and an installation groove 43 is provided on the lower surface of the T-shaped feeding table 4. A walking motor 7 is fixedly installed in the installation groove 43, and a gear 71 is sleeved on the outer surface of the output shaft of the walking motor 7. The gear 71 meshes with the rack plate 12.

[0032] The length of the rack plate 12 must match the maximum travel of the T-shaped feed table 4, and its tooth pitch accuracy must meet the feeding and positioning requirements to ensure that there is no jamming or displacement deviation during subsequent transmission.

[0033] The depth and internal space of the mounting slot 43 must meet the requirements for complete accommodation and fixation of the walking motor 7, while reserving space for the rotation of the gear 71.

[0034] The walking motor 7 is a forward and reverse motor, and it needs to be electrically connected to the external power supply and the external controller respectively: the external power supply provides a stable operating current for the motor to ensure that the motor outputs sufficient driving force; The external controller serves as the originator of action commands. Operators can send control signals such as forward rotation, reverse rotation, and stop to the walking motor 7 via the controller's buttons, touch screen, or preset programs.

[0035] When the controller issues a forward rotation command, the motor output shaft drives gear 71 to roll forward along rack plate 12, and the T-shaped feeding table 4 moves in the feeding direction until it reaches the preset feeding position. When a reset is required, the controller issues a reverse rotation command, the motor drives gear 71 to roll in the opposite direction, and the T-shaped feeding table 4 returns to the initial position along the original path. By precisely controlling the motor rotation through an external controller, not only can the movement direction of the T-shaped feeding table 4 be controlled and the position accurate, but the movement speed and stroke can also be flexibly adjusted according to different feeding requirements, greatly improving the efficiency and stability of the feeding operation. This method is suitable for continuous feeding scenarios of various materials in automated production lines.

Claims

1. A surface treatment device for titanium alloy products, comprising a base (1), characterized in that, A support frame (2) is fixedly installed on the upper surface of the base (1). A grinding mechanism (3) with adjustable grinding height is provided inside the support frame (2). A T-shaped feeding table (4) is horizontally slidably installed on the upper surface of the base (1). The T-shaped feeding table (4) is located below the grinding mechanism (3). Two directional rods (41) are fixedly installed on the upper surface of the T-shaped feeding table (4). A support table (5) is interactively installed between the other directional rods (41). A compression spring (42) is fixedly installed between the right surface of the support table (5) and the upper right end of the T-shaped feeding table (4). A drive mechanism (6) is installed on the left side of the T-shaped feeding table (4). The drive mechanism (6) works with the compression spring (42) to drive the support table (5) to perform left and right circular motion. An adapter mold (51) is detachably installed on the upper surface of the support table (5). A loading groove with a thickness lower than that of the loading part is provided on the upper surface of the adapter mold (51).

2. The surface treatment device for titanium alloy products according to claim 1, characterized in that: The grinding mechanism (3) includes a roller frame (31), a shaft (311) is fixedly installed at the rear end of the roller frame (31), the shaft (311) is rotatably installed in the support frame (2), and a grinding roller (32) is rotatably installed at the front end of the roller frame (31). A grinding belt (33) is bonded to the outer surface of the grinding roller (32) by pressure-sensitive adhesive.

3. The surface treatment device for titanium alloy products according to claim 2, characterized in that: A grinding motor (34) is fixedly installed on the right surface of the roller frame (31), and the output end of the grinding motor (34) is fixedly connected to the rear end of the grinding roller (32).

4. The surface treatment device for titanium alloy products according to claim 3, characterized in that: A hydraulic telescopic rod (35) is provided between the roller frame (31) and the support frame (2). The front and rear ends of the hydraulic telescopic rod (35) are respectively rotatably mounted with hinge seats (351). The two hinge seats (351) are respectively fixedly connected to the roller frame (31) and the support frame (2).

5. The surface treatment device for titanium alloy products according to claim 1, characterized in that: A contact rod (52) is fixedly installed on the left surface of the support platform (5), and the end of the contact rod (52) away from the support platform (5) is a spherical surface; The drive mechanism (6) includes a stepper motor (61), which is fixedly mounted on the lower left side of the T-shaped feeding table (4) by a bracket. The output end of the stepper motor (61) is fixedly mounted with a camshaft (62) by a coupling. The camshaft (62) is rotatably mounted on the left end of the T-shaped feeding table (4), and a cam (63) is sleeved on the outer surface of the camshaft (62). The outer surface of the cam (63) is provided with a groove, and the spherical surface of the contact rod (52) fits against the inner surface of the groove.

6. The surface treatment device for titanium alloy products according to claim 1, characterized in that: A rack plate (12) is fixedly installed on the upper surface of the base (1), and an installation groove (43) is opened on the lower surface of the T-shaped feeding table (4). A walking motor (7) is fixedly installed in the installation groove (43), and a gear (71) is sleeved on the outer surface of the output shaft of the walking motor (7). The gear (71) meshes with the rack plate (12).

Images