A flange surface treatment device
By designing a flange surface treatment device, the flange inner wall and surface can be ground simultaneously using a drive and displacement mechanism, solving the problem of simultaneous grinding in existing technologies and improving grinding efficiency and adaptability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU XINTAILONG PIPE FITTINGS CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-07-21
AI Technical Summary
Existing grinding equipment cannot grind both the surface and inner wall of the flange simultaneously, and the fixed tooling coverage area prevents grinding.
A flange surface treatment device was designed. The grinding mechanism can move left and right and back and forth through a drive mechanism and a displacement mechanism, which can grind the inner wall and surface of the flange at the same time. The outer wall of the flange is clamped by a positioning plate to reduce the coverage area.
It enables simultaneous grinding of the flange surface and inner wall, improving grinding efficiency and range, adapting to flanges of different diameters, and reducing the workload of workers.
Smart Images

Figure CN224526787U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of surface treatment technology, specifically to a flange surface treatment device. Background Technology
[0002] Flanges are very common connecting components in the industrial field, mainly used to connect pipes to pipes. When machining flanges, both the surface and the inner wall of the flange need to be ground.
[0003] A search revealed a Chinese utility model patent with publication number CN221936181U, which discloses a flange grinding device. According to its description, multiple flanges are placed on a clamping mechanism. A drive assembly rotates the clamping mechanism until the flange to be ground is positioned below the surface grinding assembly. A hydraulic cylinder A drives the surface grinding assembly to abut against the flange, where it grinds the flange surface. Then, the drive assembly rotates the device mechanism, moving the ground flange below the mounting hole grinding assembly and the unground flange below the surface grinding assembly. After one round of grinding, the worker flips the flange to ensure its lower surface is also cleaned. This cyclical grinding process improves efficiency and reduces worker workload.
[0004] However, the flange grinding device in the above patent, as well as most grinding devices at present, have the following problems: (1) It can only grind the surface of the flange each time and cannot grind the inner wall of the flange at the same time; (2) The flange is fixed by tooling during grinding, but the tooling will cover a large area of the flange, making it difficult to grind the covered area. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a flange surface treatment device to solve the problem that current grinding devices cannot simultaneously grind the surface and inner wall of a flange.
[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0007] A flange surface treatment device includes a base, a processing table on the base, L-shaped connecting seats connected to both sides of the processing table, the two connecting seats being mirror images of each other, and two first slides slidably connected to each of the two connecting seats. A driving mechanism is provided inside the processing table to drive the two first slides to move simultaneously towards or in opposite directions. A first cylinder is mounted on the top surface of each first slide, and a positioning plate is connected to the telescopic end of the first cylinder. V-shaped positioning grooves are provided on the opposite surfaces of the two positioning plates. A frame is connected to the base, and a displacement mechanism is provided at the top of the frame. A second cylinder is mounted on the displacement mechanism, and a grinding mechanism for simultaneously grinding the inner and outer walls of the flange is connected to the telescopic end of the second cylinder. The grinding mechanism is driven by the displacement mechanism to move left and right and back and forth above the processing table.
[0008] Preferably, the polishing mechanism includes a polishing motor, a mounting shaft is drivenly connected to the motor shaft of the polishing motor, and a polishing disc and a polishing wheel are connected to the mounting shaft by screws. The polishing disc is located above the polishing wheel, the thickness of the polishing wheel is greater than the thickness of the polishing disc, and the diameter of the polishing disc is greater than the diameter of the polishing wheel.
[0009] The above technical solution involves starting the grinding motor, which drives the mounting shaft to rotate. The mounting shaft then drives the grinding wheel and grinding disc to rotate together. The grinding wheel gradually enters the flange to grind the inner wall of the flange. When the grinding wheel is fully inside the flange, the grinding disc contacts the surface of the flange, thereby grinding the surface of the flange.
[0010] Preferably, the driving mechanism includes a transmission rod rotatably connected to the processing table via a rotary bearing. Two first lead screws are fixedly connected to both ends of the transmission rod. The two first lead screws are of the same length and have opposing threads. The end of the first lead screw furthest from the processing table is rotatably connected to a connecting seat via a rotary bearing. A first motor is installed inside the processing table. A first bevel gear is connected to the motor shaft of the first motor. A second bevel gear is connected to the transmission rod. The first bevel gear meshes with the second bevel gear. Guide rails are provided on both sides of the first lead screw on the connecting seat. Two first slide blocks are threadedly connected to the first lead screw at their respective ends. The bottom surface of the first slide block has a sliding groove, and the slide block is slidably connected to the corresponding guide rail through the sliding groove.
[0011] The above technical solution involves starting the first motor, which, through the cooperation of the first bevel gear and the second bevel gear, drives the transmission rod to rotate, thereby driving the first lead screws at both ends of the transmission rod to rotate. Since the two first lead screws have opposite threads, the two first slide blocks will move towards or in opposite directions simultaneously, thereby driving the two positioning plates to move towards or in opposite directions.
[0012] Preferably, the displacement mechanism includes a left-right displacement mechanism and a front-back displacement mechanism.
[0013] Preferably, the left and right displacement mechanism includes a second lead screw rotatably connected to the upper part of the frame via a rotary bearing, a first guide rod connected to the upper part of the frame, and a second motor installed on the outside of the frame. The second motor is drivenly connected to one end of the second lead screw. A second slide block is threaded onto the second lead screw. A first sliding hole is provided on the second slide block, and it is slidably connected to the first guide rod through the first sliding hole.
[0014] The above technical solution involves starting the second motor, which drives the second lead screw to rotate. When the second lead screw rotates, it drives the second slide to move left and right along the first guide rod.
[0015] Preferably, the front and rear displacement mechanism includes bearing seats connected to the front and rear ends of the second slide, a third lead screw rotatably connected to the two bearing seats via a rotary bearing, a second guide rod connected to the two bearing seats, a third motor installed at one end of the second slide, the third motor being drivenly connected to one end of the third lead screw, the third slide being threadedly connected to the third lead screw, the third slide having a second sliding hole and being slidably connected to the third guide rod through the second sliding hole, and the upper end of the second cylinder being connected to the third slide by a screw.
[0016] The above technical solution involves starting the third motor, which drives the third lead screw to rotate. When the third lead screw rotates, it drives the third slide to move back and forth along the second guide rod.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] (1) By driving the two first slides to move in opposite directions at the same time through the driving mechanism, the flange can be clamped from the outer wall, reducing the coverage area, which is conducive to grinding the flange surface, and can match flanges of different diameters.
[0019] (2) During grinding, the inner wall and surface of the flange are ground simultaneously by the grinding mechanism. After one side of the flange is ground, the flange is manually flipped over and the inner wall and the other side of the flange are ground by the grinding mechanism, which improves the grinding range and efficiency. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the present invention;
[0021] Figure 2 This is a schematic diagram of the grinding mechanism;
[0022] Figure 3 A schematic diagram showing the flange side after the positioning plate is fixed to one side;
[0023] Figure 4 A schematic diagram showing the other side of the flange after the positioning plate is fixed to the flange;
[0024] Figure 5 This is a cross-sectional view of one side of the flange and the inner wall during grinding.
[0025] Figure 6 This is a cross-sectional view of the other side and inner wall of the flange during grinding.
[0026] In the diagram: 1-Base, 2-Machining table, 3-Connecting seat, 4-First slide, 5-First cylinder, 6-Positioning plate, 7-Positioning groove, 8-Frame, 9-Second cylinder, 10-Grinding motor, 11-Mounting shaft, 12-Grinding disc, 13-Grinding wheel, 14-Transmission rod, 15-First lead screw, 16-First motor, 17-First bevel gear, 18-Second bevel gear, 19-Guide rail, 20-Second lead screw, 21-First guide rod, 22-Second motor, 23-Second slide, 24-Bearing seat, 25-Third motor, 26-Third slide, 27-Flange. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] Please see Figures 1-6A flange surface treatment device includes a base 1, a processing table 2 on the base 1, and L-shaped connecting seats 3 connected to both sides of the processing table 2. The two connecting seats 3 are mirror images of each other, and two first slides 4 are slidably connected to the two connecting seats 3 respectively. The processing table 2 is provided with a driving mechanism that drives the two first slides 4 to move simultaneously toward or in opposite directions. Specifically, the driving mechanism includes a transmission rod 14 rotatably connected to the processing table 2 via a rotary bearing. Two first lead screws 15 are fixedly connected to both ends of the transmission rod 14. The two first lead screws 15 are of the same length and have opposing threads. The end of the first lead screw 15 furthest from the processing table is rotatably connected to the connecting seat 3 via a rotary bearing. A first motor 16 is provided inside the processing table 2. A first bevel gear 17 is connected to the motor shaft of the first motor 16. A second bevel gear 18 is connected to the transmission rod 14. The first bevel gear 17 and the second bevel gear 18 mesh. Guide rails 19 are provided on both sides of the first lead screw on the connecting seat 3. Two first slide blocks 4 are threadedly connected to the first lead screw 15 at their respective ends. The bottom surface of the first slide block 4 has a sliding groove, and it is slidably connected to the corresponding guide rail 19 through the sliding groove. When the first motor 16 is started, the transmission rod 14 is driven to rotate through the cooperation of the first bevel gear 17 and the second bevel gear 18. The transmission rod 14 drives the first lead screws 15 at both ends to rotate. Since the two first lead screws have opposite threads and the two first lead screws are the same length, and the distance between the two first slides and the processing table is also equal, the two first slides will move towards or in opposite directions when the first lead screw rotates.
[0029] The top surface of the first slide block 4 is equipped with a first cylinder 5, and the telescopic end of the first cylinder 5 is connected to a positioning plate 6. The opposite surfaces of the two positioning plates 6 are provided with V-shaped positioning grooves 7, and the outer wall of the flange can be clamped through the positioning grooves 7 on the positioning plates.
[0030] A frame 8 is connected to the base 1. A displacement mechanism is located at the top of the frame 8, including a left-right displacement mechanism and a front-back displacement mechanism. The left-right displacement mechanism includes a second lead screw 20 rotatably connected to the upper part of the frame 8 via a rotary bearing, a first guide rod 21 connected to the upper part of the frame, and a second motor 22 mounted on the outside of the frame. The second motor 22 is drively connected to one end of the second lead screw 20. A second slide block 23 is threaded onto the second lead screw 20. The second slide block 23 has a first sliding hole and is slidably connected to the first guide rod 21 through the first sliding hole. When the second motor is started, it drives the second lead screw to rotate. As the second lead screw rotates, it drives the second slide block to move left and right along the first guide rod.
[0031] The forward and backward displacement mechanism includes bearing seats 24 connected to the front and rear ends of the second slide block 23, a third lead screw rotatably connected to the two bearing seats via a rotary bearing, a second guide rod connected to the two bearing seats, and a third motor 25 mounted on one end of the second slide block. The third motor 25 is drively connected to one end of the third lead screw. A third slide block 26 is threaded onto the third lead screw. The third slide block 26 has a second sliding hole and is slidably connected to the third guide rod through the second sliding hole. When the third motor is started, it drives the third lead screw to rotate. When the third lead screw rotates, it drives the third slide block to move back and forth along the second guide rod.
[0032] The third slide 26 is connected to a second cylinder 9 by screws. The telescopic end of the second cylinder 9 is connected to a grinding mechanism that simultaneously grinds the inner and outer walls of the slide. The grinding mechanism includes a grinding motor 10. A mounting shaft 11 is drivenly connected to the motor shaft of the grinding motor 10. The mounting shaft 11 has multiple sets of screw holes. A grinding disc 12 and a grinding wheel 13 are connected to the mounting shaft by screws and screw holes. The grinding disc 12 is located above the grinding wheel 13. The thickness of the grinding wheel 13 is greater than the thickness of the grinding disc 12, and the diameter of the grinding disc 12 is greater than the diameter of the grinding wheel 13.
[0033] The working principle of this utility model is as follows:
[0034] According to the model of flange 27, select the corresponding model of grinding disc 12 and grinding wheel 13, so that the outer diameter of grinding wheel 13 is equal to the diameter of the center hole of flange 27, the thickness of grinding wheel 13 is less than the thickness of flange 27, and the outer diameter of grinding disc 12 is greater than or equal to the outer diameter of flange 27. Then, install the corresponding model of grinding disc 12 and grinding wheel 13 on the mounting shaft 11 with screws.
[0035] Before grinding, the flange 27 is placed on the processing table 2. Then, the two first slide blocks 4 are controlled to move relative to each other through the drive mechanism, which drives the two positioning plates 6 to move relative to each other. This clamps the outer wall of the lower side of the flange through the two positioning plates 6, keeping the flange stable. Then, the position of the grinding mechanism is adjusted through the displacement mechanism. After multiple adjustments, the grinding wheel 13 is aligned with the center hole of the flange 27. Then, the second cylinder 9 is controlled to extend, driving the grinding mechanism to descend.
[0036] Then, the grinding motor 10 is controlled to work, driving the grinding wheel 13 and the grinding disc 12 to rotate together. The grinding wheel 13 first enters the center hole of the flange 27 and grinds the center hole. When the grinding wheel 13 reaches the lower part of the center hole (more than halfway), the grinding disc 12 contacts the surface of the flange 27. The surface of the flange is ground by the grinding disc 12, realizing the simultaneous grinding of the inner and outer walls.
[0037] After one side of flange 27 is ground, the positioning plate 6 is released, the flange is flipped over so that the unground side faces upward, and the positioning plate 6 is used to clamp the flange edge again. Then the center hole is ground by the grinding wheel 13. When the grinding wheel 13 reaches the lower part of the center hole again (more than halfway), the grinding disc 12 contacts the unground surface of the flange and grinds the unground surface of the flange by the grinding disc 12, thereby achieving grinding of both sides of the flange and the center hole.
[0038] In addition, due to the two grinding processes, the grinding wheel 13 extends into the center hole and covers more than half of it. Therefore, the two grinding processes can fully cover the center hole and achieve comprehensive grinding of the center hole.
[0039] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A flange surface treatment device, characterized in that: The machine includes a base (1), a processing table (2) on the base (1), and L-shaped connecting seats (3) connected to both sides of the processing table (2). The two connecting seats (3) are mirror images of each other. Two first slides (4) are slidably connected to the two connecting seats (3). The processing table (2) is equipped with a driving mechanism that drives the two first slides (4) to move in opposite directions at the same time. A first cylinder (5) is installed on the top surface of the first slide (4). A positioning plate (6) is connected to the telescopic end of the first cylinder (5). A V-shaped positioning groove (7) is provided on the opposite surface of the two positioning plates (6). A frame (8) is connected to the base (1). A displacement mechanism is provided at the top of the frame (8). A second cylinder (9) is installed on the displacement mechanism. A grinding mechanism that grinds the inner and outer walls of the machine simultaneously is connected to the telescopic end of the second cylinder (9). The grinding mechanism is driven by the displacement mechanism to move left and right and back and forth above the processing table (2). The polishing mechanism includes a polishing motor (10), and a mounting shaft (11) is drivenly connected to the motor shaft of the polishing motor (10). A polishing disc (12) and a polishing wheel (13) are connected to the mounting shaft (11) by screws. The polishing disc (12) is located above the polishing wheel (13). The thickness of the polishing wheel (13) is greater than the thickness of the polishing disc (12), and the diameter of the polishing disc (12) is greater than the diameter of the polishing wheel (13).
2. The flange surface treatment device according to claim 1, characterized in that: The driving mechanism includes a transmission rod (14) rotatably connected to the processing table (2) via a rotary bearing. The two ends of the transmission rod (14) are fixedly connected to a first lead screw (15). The two first lead screws (15) are of the same length and have opposite threads. The end of the first lead screw (15) away from the processing table is rotatably connected to the connecting seat (3) via a rotary bearing. The processing table (2) is equipped with a first motor (16). The motor shaft of the first motor (16) is connected to a first bevel gear (17). The transmission rod (14) is connected to a second bevel gear (18). The first bevel gear (17) meshes with the second bevel gear (18). The connecting seat (3) is equipped with guide rails (19) on both sides of the first lead screw. The two first slides (4) are threadedly connected to the first lead screw (15) at one end of each of them. The bottom surface of the first slide (4) is provided with a sliding groove and is slidably connected to the corresponding guide rail (19) through the sliding groove.
3. The flange surface treatment device according to claim 2, characterized in that: The displacement mechanism includes a left-right displacement mechanism and a front-back displacement mechanism.
4. The flange surface treatment device according to claim 3, characterized in that: The left and right displacement mechanism includes a second lead screw (20) rotatably connected to the upper part of the frame (8) via a rotary bearing, a first guide rod (21) connected to the upper part of the frame, and a second motor (22) installed on the outside of the frame. The second motor (22) is connected to one end of the second lead screw (20) via a drive. A second slide block (23) is threaded onto the second lead screw (20). A first sliding hole is provided on the second slide block (23), and it is slidably connected to the first guide rod (21) through the first sliding hole.
5. The flange surface treatment device according to claim 4, characterized in that: The front and rear displacement mechanism includes bearing seats (24) connected to the front and rear ends of the second slide (23), a third lead screw rotatably connected to the two bearing seats via a rotary bearing, a second guide rod connected to the two bearing seats, and a third motor (25) installed at one end of the second slide. The third motor (25) is connected to one end of the third lead screw. The third lead screw is threadedly connected to the third slide (26). The third slide (26) has a second sliding hole and is slidably connected to the third guide rod through the second sliding hole. The upper end of the second cylinder (9) is connected to the third slide (26) by a screw.