Niobium alloy surface treatment device

Abstract

The invention relates to a niobium alloy surface treatment device which comprises a bottom frame. The two polishing mechanisms are arranged on the bottom frame and are perpendicular to each other; the turn-over mechanism is arranged between the two polishing mechanisms; the polishing mechanism comprises a supporting panel fixed to the top of the bottom frame, and a long groove is formed in the plate face of the supporting panel in the blank advancing direction. The polishing wheel set is arranged above the supporting panel and is used for polishing the top surface of the blank; the left side baffle and the right side baffle are arranged on the two sides of the bottom frame and used for guiding and polishing the two side faces of the blank; the feeding mechanism is used for driving the blank to advance on the supporting panel; according to the device, polishing treatment of the six surfaces of the niobium alloy plate can be automatically completed in the one-time clamping process, the risk of time waste and surface scratching caused by multiple times of turning over and positioning is fundamentally eliminated, and the machining efficiency and the product consistency are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of niobium alloy surface processing technology, and in particular to a niobium alloy surface treatment apparatus. Background Technology

[0002] Niobium alloys, due to their high melting point, good high-temperature strength, and excellent corrosion resistance, have broad application prospects in aerospace, nuclear industry, and high-end chemical equipment. In these applications, the surface quality of niobium alloy sheets is crucial, directly affecting their fatigue resistance, oxidation resistance, and the quality of their connection with other components. Therefore, surface polishing of niobium alloy sheets is a key step in their precision machining process.

[0003] Currently, the industry commonly uses planar polishing equipment for surface polishing of niobium alloy rectangular plates. This equipment primarily targets the top surface of the plate, i.e., the main large surface. However, a complete rectangular plate has six outer surfaces: a top surface, a bottom surface, and four side surfaces. Existing single-sided polishing processes have significant limitations: after polishing the top surface, the plate needs to be flipped over to polish the bottom surface; and for the four side surfaces, it usually requires changing fixtures or using additional specialized equipment, a cumbersome process.

[0004] This multi-faceted, multi-stage processing method has led to many problems: First, the processing efficiency is extremely low, as only one surface can be processed at a time, and multiple flipping and orientation adjustments consume a lot of non-productive time; second, the polishing wheel needs to be adjusted to suit different sizes of boards. Summary of the Invention

[0005] To address the problem of low efficiency in existing niobium alloy sheet surface polishing technology, this invention provides a niobium alloy surface treatment device that can simultaneously perform efficient and uniform polishing on six outer surfaces of the sheet after a single clamping.

[0006] The technical solution is: a niobium alloy surface treatment device, comprising: a base frame; two polishing mechanisms, arranged perpendicularly to each other on the base frame; and A flipping mechanism is disposed between the two polishing mechanisms; the polishing mechanism includes: a support panel fixed to the top of the base frame, the surface of which has a long groove along the blank's forward direction; A polishing wheel assembly is arranged above the support panel for polishing the top surface of the blank; left and right side guards are arranged on both sides of the base frame for guiding and polishing the two sides of the blank; a feeding mechanism is used to drive the blank forward on the support panel; wherein, the flipping mechanism is used to receive the blank processed by one polishing mechanism, flip it 180 degrees and transfer it to another polishing mechanism to process the remaining surface of the blank.

[0007] Furthermore, the polishing wheel assembly includes: multiple columns symmetrically arranged on both sides of the base frame; A top frame is slidably mounted on the columns on both sides at both ends; multiple polishing wheels are mounted on the top frame along the direction of blank movement and are driven by a first motor; a spring is sleeved on the column, the lower end of the spring abuts against the upper end of the top frame, and the upper end abuts against the bottom of a baffle plate located at the upper end of the column, so that the polishing wheel assembly has vertical floating capability.

[0008] Furthermore, the top frame is provided with at least one vertical rod, and the lower end of the vertical rod is provided with an abutment wheel; the upper end of the vertical rod passes through a hole opened on the top frame and is locked and fixed by two nuts, and the height of the abutment wheel is adjusted by adjusting the protruding length of the vertical rod; when the blank passes the bottom of the abutment wheel, it can lift the abutment wheel and the polishing wheel assembly connected to it as a whole, so as to adapt to blanks of different thicknesses.

[0009] Furthermore, the left and right side stops each include: multiple slide rails arranged on the top of the base frame and perpendicular to the direction of blank movement; sliders, with a slider slidably mounted at each end of each slide rail; a tension spring connected between the two sliders and driving the two sliders to move closer to each other; two side stop brackets, respectively disposed on the top of the sliders located on the same side; the ends of the two side stop brackets that are close to each other are bent outward to form a flared opening.

[0010] Furthermore, multiple rollers are provided on the opposing inner sidewalls of the two side guards; and a notch is opened in the middle of each of the two side guards, in which a side polishing wheel driven by a second motor is installed.

[0011] Furthermore, the feeding mechanism includes: a long cylinder, the cylinder body of which is fixed on the base frame; a corner block connected to the front end of the push rod of the long cylinder; the bottom of the corner block is slidably disposed in the long groove of the support panel, and its top extends upward out of the long groove to push the blank placed on the support panel forward.

[0012] Further, the flipping mechanism comprises: a horizontal shaft, which is connected to a third motor for transmission; a plurality of transfer wheels, which are coaxially fixedly mounted on the horizontal shaft; two symmetrical notches are opened radially on the transfer wheels, one notch being used to connect with the discharge end of a polishing mechanism to receive the blank, and the other notch being used to connect with the feed end of another polishing mechanism to deliver the blank; the third motor drives the transfer wheels to rotate 180 degrees, thereby flipping the blank and transferring it to the next work station.

[0013] Furthermore, the flipping mechanism is provided with a transmission mechanism on both sides to assist the blank in entering the transfer wheel from the polishing mechanism and entering the next polishing mechanism from the transfer wheel.

[0014] Compared with the prior art, the present invention has the following advantages: 1. This invention constructs a comprehensive polishing system by setting up two mutually perpendicular polishing mechanisms and a flipping mechanism located between them. This device can automatically complete the polishing of six surfaces of niobium alloy plates in a single clamping process, fundamentally eliminating the time waste and surface scratch risk caused by multiple flipping and positioning, and greatly improving processing efficiency and product consistency.

[0015] 2. The polishing wheel assembly of the present invention provides floating pressure through a spring, enabling the polishing wheel to adapt to the surface of the blank; ensuring the stability and safety of the polishing process, and adapting to different plates within a certain thickness range.

[0016] 3. This invention provides a simple method for precisely defining the distance between the polishing wheel and the workpiece reference surface through an adjustable vertical rod and abutment wheel structure. It adapts to workpieces of different thicknesses, ensuring stable polishing quality while simplifying equipment debugging and changeover processes.

[0017] 4. The left and right side stops of this invention utilize tension springs to achieve adaptive clamping, and their flared openings smoothly guide the blank into place. This design can automatically adapt to blanks of different widths and always constrain them to the correct travel path, providing a precise positioning reference for subsequent side polishing.

[0018] 5. This invention integrates a side polishing wheel on the side support frame, realizing modularization of the side polishing function. As the blank moves forward and is guided, both sides are polished simultaneously, integrating the processing of three sides into one process. The roller configuration effectively reduces the frictional resistance during blank movement.

[0019] 6. The feeding mechanism of the present invention uses corner blocks hidden in the long groove of the panel for pushing, so that the blank will not deviate or jump during the polishing process.

[0020] 7. The flipping mechanism of this invention uses a transfer wheel with symmetrical notches, which is precise and efficient. After receiving the blank, it can be rotated 180 degrees to flip it and transfer it to the next workstation. The whole process is fast and smooth, completely replacing manual flipping and eliminating the efficiency bottleneck and safety risks caused by it.

[0021] 8. The conveying mechanisms on both sides of the flipping mechanism in this invention ensure smooth and precise transfer of the billet between workstations. They effectively receive the output from the polishing mechanism and assist in accurately feeding the flipped billet into the subsequent polishing mechanism, ensuring the continuity and reliability of the entire automated process. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0023] Figure 2 This is a three-dimensional structural diagram of the polishing wheel assembly of the present invention.

[0024] Figure 3 This is a three-dimensional structural diagram of the side guard of the present invention.

[0025] Figure 4 This is a three-dimensional structural diagram of the feeding mechanism of the present invention.

[0026] Figure 5 This is a three-dimensional structural diagram of the flipping mechanism of the present invention.

[0027] Figure 6 This is a top view of the present invention.

[0028] The meanings of the labels in the attached diagram: 10: Base frame; 21: Support panel; 211: Long slot; 22: Polishing wheel assembly, 221: Column, 222: Top frame, 223: Polishing wheel, 224: First motor, 225: Spring, 226: Baffle plate, 227: Vertical rod, 228: Abutment wheel, 229: Nut; 24: Side stop, 241: Slide rail, 2411: Limiting block, 242: Slider, 243: Tension spring, 244: Side stop bracket, 245: Flared opening, 246: Roller, 247: Notch, 248: Second motor, 249: Side polishing wheel; 25: Feeding mechanism; 251: Long cylinder; 252: Corner block; 30: Flipping mechanism; 31: Horizontal shaft; 32: Third motor; 33: Transfer wheel; 331: Notch; a1, a2, a3: billets; 80: Transmission mechanism. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] refer to Figure 1-6 As shown, the present invention provides a niobium alloy surface treatment device, the structure of which includes a base frame 10 as a supporting foundation, two polishing mechanisms arranged perpendicularly to each other on the base frame 10, and a flipping mechanism 30 disposed between the two polishing mechanisms, thereby forming an integrated continuous processing line. This device can automatically complete the polishing treatment of all six surfaces of the niobium alloy sheet in a single clamping process, fundamentally solving the problems of low processing efficiency and high risk of surface scratches caused by multiple flipping and positioning in the prior art.

[0031] refer to Figure 1 and Figure 6 Specifically, each polishing mechanism includes a support panel 21 fixed to the top of the base 10. This panel has multiple long grooves 211 along the blank feeding direction, and its surface is smooth to reduce feeding friction. See details. Figure 2 Above the support panel 21, a polishing wheel assembly 22 for polishing the top surface of the workpiece is arranged. This polishing wheel assembly 22 consists of multiple columns 221 symmetrically arranged on both sides of the base frame 10, a top frame 222 that engages with the columns 221 via ball bearing sliders and can slide up and down, and multiple polishing wheels 223 mounted on the top frame 222 along the workpiece's forward direction and driven by a first motor 224. A baffle 226 is provided at the upper end of the column 221, and a spring 225 is fitted onto it. The lower end of the spring 225 abuts against the upper end of the top frame 222, and the upper end abuts against the bottom of the baffle 226, giving the entire polishing wheel assembly 22 a vertical floating capability, allowing it to adapt to minor unevenness on the workpiece surface and ensuring stable polishing pressure. To further precisely control the distance between the polishing wheel 223 and the blank reference surface, multiple vertical rods 227 are installed on the top frame 222. Each vertical rod 227 has an abutment wheel 228 installed at its lower end, and its upper end passes through the hole in the top frame 222 and is locked in place by two nuts 229. The height of the abutment wheel 228 can be set by adjusting the protruding length of the vertical rod 227. When the blank passes under it, it can lift the polishing wheel assembly 22 as a whole to the preset polishing height, thereby adapting to blanks of different thicknesses and simplifying the equipment debugging process.

[0032] In one specific embodiment, reference Figure 3On both sides of the support panel 21, left and right side stops 24 are provided for guiding and polishing the two sides of the billet. Each side stop 24 includes multiple slide rails 241 perpendicular to the billet's forward direction, sliders 242 slidably mounted at both ends of each slide rail 241, tension springs 243 connecting two sliders 242 on the same slide rail 241, and side stop brackets 244 fixed to the top of all sliders 242 on the same side. The tension of the tension springs 243 drives the side stop brackets 244 on both sides to move closer together, achieving automatic centering and clamping of billets of different widths. It should be noted that a limiting block is provided in the middle of the slide groove of the slide rail 241 to limit the minimum distance between the two sliders 242, thereby reserving a width for the billet to enter. The feed ends of the two side stop brackets 244 are bent outward to form a trumpet-shaped flare 245, which can smoothly guide the billet in. Multiple rollers 246 are installed on the inner wall of the side baffle 244 facing the billet to reduce frictional resistance during billet movement. More importantly, a notch 247 is opened in the middle of each side baffle 244, through which a side polishing wheel 249 driven by a second motor 248 is installed. This structure allows the billet to be polished on both sides simultaneously as it moves forward and is guided, achieving the integration of three processes: top surface, sides, and the two sides.

[0033] refer to Figure 4 In one specific embodiment, the feeding mechanism 25 that drives the blank forward on the support panel 21 includes a long cylinder 251 fixed to the base frame 10 and a plurality of corner blocks 252 connected to the front end of its push rod. The bottom of the corner blocks 252 is slidably embedded in the long groove 211 of the support panel 21, and the top extends upward out of the long groove 211. When the long cylinder 251 is activated, the corner blocks 252 move along the long groove 211, stably pushing the blank forward. This concealed design ensures that the point of application of the pushing force is stable, effectively preventing the blank from shifting or jumping during the polishing process.

[0034] refer to Figure 5In one specific embodiment, a flipping mechanism 30, positioned between two polishing mechanisms, is responsible for flipping the polished blank (with all three sides polished) 180 degrees and transferring it to the next workstation. This mechanism includes a horizontal shaft 31 driven by a third motor 32, and multiple transfer wheels 33 coaxially mounted on the horizontal shaft 31. Each transfer wheel 33 has two symmetrical notches 331 radially arranged on it. One notch 331 connects to the discharge end of the upstream polishing mechanism to receive the blank, while the other notch 331 connects to the feed end of the downstream polishing mechanism to deliver the blank. The third motor 32 drives the transfer wheels 33 to rotate precisely 180 degrees, completing the flipping and transfer of the blank. The entire process is fast and smooth, completely replacing the inefficient and safety-risk manual flipping. To ensure smooth and accurate transfer of the blank between workstations, a transmission mechanism 80 is also provided on both sides of the flipping mechanism 30. This transmission mechanism 80 is a roller-type transmission machine driven by a fourth motor, which effectively receives and assists in the transfer of blanks, ensuring the continuity and reliability of the entire automated process.

[0035] The working principle and steps of this invention are as follows: First, the rectangular niobium alloy blank a1 to be processed is placed on the support panel 21 of the first polishing mechanism. The feeding mechanism 25 of this station is started, and the long cylinder 251 drives the corner block 252 to push the blank a1 forward. During the forward movement, the top surface of the blank is polished when it passes under the polishing wheel group 22. At the same time, its two sides are polished by the side polishing wheels 249 on the side baffles 244 when it passes the left and right side baffles 24, thus completing the processing of the top surface and the two sides in one go, and obtaining the semi-finished blank a2. Next, the semi-finished blank a2 is pushed to the flipping mechanism 30 and received by one of the notches 331 of the transfer wheel 33. The third motor 32 is started, driving the transfer wheel 33 to rotate 180 degrees, accurately flipping the blank a2. At this time, the previously processed bottom surface is facing up, while the unprocessed bottom surface and the remaining two sides are in a state of waiting to be processed. The flipped blank a3 is assisted by the transmission mechanism 80 and sent into the second polishing mechanism arranged vertically. The feeding mechanism 25 of the device propels the blank a3 forward, polishing its bottom surface and the remaining two sides. Finally, the blank a3 passes through the entire device sequentially, with all six outer surfaces of it having undergone polishing. The entire process is continuous and automated, greatly improving processing efficiency and product consistency.

[0036] The embodiments described above are merely preferred embodiments of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications, improvements, and substitutions without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A niobium alloy surface treatment apparatus, characterized in that, include: Base frame (10); Two polishing mechanisms are mounted on the base frame (10) and arranged perpendicular to each other; as well as A flipping mechanism (30) is disposed between the two polishing mechanisms; The polishing mechanism includes: The support panel (21) is fixed to the top of the base frame (10), and its surface has a long groove (211) along the direction of the billet's movement. Polishing wheel set (22) is arranged above the support panel (21) for polishing the top surface of the blank; Left and right side guards (24) are arranged on both sides of the base frame (10) to guide and polish the two sides of the blank; A feeding mechanism (25) is used to drive the blank forward on the support panel (21); The flipping mechanism (30) is used to receive the blank processed by one polishing mechanism, flip it 180 degrees and transfer it to another polishing mechanism to process the remaining surface of the blank.

2. The niobium alloy surface treatment apparatus according to claim 1, characterized in that, The polishing wheel set (22) includes: Multiple columns (221) are symmetrically arranged on both sides of the base frame (10); The top frame (222) is slidably mounted on the columns (221) on both sides; Multiple polishing wheels (223) are mounted on the top frame (222) along the blank's forward direction and are driven by a first motor (224); A spring (225) is fitted on the column (221). The lower end of the spring (225) abuts against the upper end of the top frame (222), and the upper end abuts against the bottom of the baffle (226) set on the upper end of the column (221), so that the polishing wheel assembly (22) has the ability to float vertically.

3. The niobium alloy surface treatment apparatus according to claim 2, characterized in that, The top frame (222) is provided with at least one vertical rod (227), and the lower end of the vertical rod (227) is provided with an abutment wheel (228); the upper end of the vertical rod (227) passes through a hole opened in the top frame (222) and is locked and fixed by two nuts (229); the height of the abutment wheel (228) is adjusted by adjusting the protruding length of the vertical rod (227); When the blank passes the bottom of the abutting wheel (228), it can lift the abutting wheel (228) and the polishing wheel assembly (22) connected thereto as a whole, so as to adapt to blanks of different thicknesses.

4. The niobium alloy surface treatment apparatus according to claim 1, characterized in that, The left and right side guards (24) respectively include: Multiple slide rails (241) are arranged on the top of the base frame (10) and perpendicular to the direction of billet movement; Slider (242), each of the two ends of the slide rail (241) is slidably fitted with a slider (242); A tension spring (243) is connected between the two sliders (242) and drives the two sliders (242) to move closer to each other; Two side brackets (244) are respectively set on the top of the slider (242) located on the same side, and the two side brackets (244) are bent outward at the ends that are close to each other to form a flared opening (245).

5. The niobium alloy surface treatment apparatus according to claim 4, characterized in that, Multiple rollers (246) are provided on the opposite inner sidewalls of the two side guards (244); and a notch (247) is opened in the middle of the two side guards (244), and a side polishing wheel (249) driven by a second motor (248) is installed in the notch (247).

6. The niobium alloy surface treatment apparatus according to claim 1, characterized in that, The feeding mechanism (25) includes: A long cylinder (251), the cylinder body of which is fixed on the base frame (10); Corner block (252) is connected to the front end of the push rod of the long cylinder (251); The bottom of the corner block (252) is slidably disposed in the long groove (211) of the support panel (21), and its top extends upward out of the long groove (211) to push the blank placed on the support panel (21) forward.

7. The niobium alloy surface treatment apparatus according to claim 1, characterized in that, The flipping mechanism (30) includes: The horizontal shaft (31) is connected to the third motor (32) for transmission. Multiple transfer wheels (33) are coaxially fixedly mounted on the horizontal shaft (31); The transfer wheel (33) has two symmetrical notches (331) along the radial direction. One notch (331) is used to connect with the discharge end of a polishing mechanism to receive the blank, and the other notch (331) is used to connect with the feed end of another polishing mechanism to send out the blank. The third motor (32) drives the transfer wheel (33) to rotate 180 degrees, thereby flipping the billet and transferring it to the next work station.

8. The niobium alloy surface treatment apparatus according to claim 7, characterized in that, The flipping mechanism (30) is also provided with a transmission mechanism (80) on both sides to assist the blank in entering the transfer wheel (33) from the polishing mechanism and entering the next polishing mechanism from the transfer wheel (33).

Images