Flange joint precision measuring and positioning machining device

Abstract

A positioning mechanism comprises a rotating disc rotationally connected to the top of a workbench, a plurality of first strip-shaped holes are formed in the top of the rotating disc, the inner wall of each first strip-shaped hole is rotationally connected with a two-way lead screw, and the two sides of the outer wall of each two-way lead screw are in threaded connection with threaded blocks; wherein one side of the top of the threaded block on one side is fixedly connected with a conical barrel, the top of the threaded block on the other side is fixedly connected with a first fixing base, and one side of each first fixing base is connected with a first supporting connecting rod in a penetrating and inserting mode. In the using process, in the process of centering the external positioning arc-shaped plate in advance, fixing the internal conical barrel for the second time and positioning the flange joint, the flange joint can be more stable, manual centering treatment of workers is not needed, and the working efficiency in the flange joint machining process is improved.

Description

Technical Field

[0001] This invention belongs to the field of flange joint measurement technology, and specifically relates to a precision measurement and positioning processing device for flange joints. Background Technology

[0002] Flange joints, as core components for pipeline connections and equipment docking, are widely used in high-end equipment fields such as petrochemicals, aerospace, semiconductor manufacturing, and shipbuilding. Their machining accuracy directly determines the sealing performance, load-bearing capacity, and system operational stability of the connection. Under extreme conditions such as high pressure, high temperature, and strong corrosion, even minute deviations in critical dimensions of flange joints, such as end face flatness, bolt hole position accuracy (PCD), and inner and outer diameter coaxiality, can lead to fluid leakage, structural stress concentration, or even major safety accidents. Therefore, the industry's requirements for the machining accuracy of flange joints have been raised to the micron level or even sub-micron level.

[0003] In the precision measurement and machining process of flange joints, accurate workpiece positioning is a core prerequisite for ensuring the accuracy of measurement data and machining precision. Currently, the positioning solutions commonly used in the industry mainly rely on two traditional methods: external contour positioning or internal datum positioning. While these methods can meet basic positioning requirements, they have significant technical shortcomings in practical applications. The design logic of existing positioning components generally lacks a pre-alignment calibration module, resulting in the inability to automatically align and calibrate the flange joint after it is placed on the worktable. Operators can only perform rough manual positioning based on experience or simple auxiliary tools, which not only significantly increases the complexity of manual operation but also makes it difficult to ensure consistent positioning accuracy. Due to the lack of a systematic alignment mechanism, the actual positioning datum of the flange joint is prone to deviation from the theoretical datum. This deviation directly transmits to subsequent measurement stages, leading to errors in dimensional measurements, geometric tolerance checks, and other data, seriously affecting machining quality control. Meanwhile, the manual centering process is time-consuming, reducing the efficiency of the overall processing flow. This defect is amplified, especially in mass production scenarios, which restricts production cycle and capacity improvement. In addition, traditional positioning methods are highly dependent on the skill level of operators. Differences in operating habits and experience among different operators will further exacerbate the fluctuation of positioning accuracy, making it difficult to form a standardized and replicable processing flow, which is not conducive to the stable control of product quality. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a precision measurement and positioning machining device for flange joints, thereby solving the issues raised in the background section.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a precision measurement and positioning processing device for flange joints, comprising a support base, a slide rail on the top of the support base, a sliding base slidably connected to the top of the slide rail, a worktable on the top of the sliding base, a positioning mechanism on the top of the worktable, a rotating mechanism on the bottom of the worktable, and a processing mechanism on one side of the support base.

[0006] The positioning mechanism includes a turntable rotatably connected to the top of the worktable. The top of the turntable has multiple first strip-shaped holes. A bidirectional lead screw is rotatably connected to the inner wall of each first strip-shaped hole. Threaded blocks are threaded to both sides of the outer wall of each bidirectional lead screw. A tapered cylinder is fixedly connected to one side of the top of one of the threaded blocks, and a first fixed seat is fixedly connected to the top of the other threaded block. A first supporting connecting rod is inserted into one side of each first fixed seat. A positioning arc-shaped plate is fixedly connected to one end of each first supporting connecting rod. A first return spring is sleeved on the outer wall of each first supporting connecting rod.

[0007] In one example, the top of the turntable has multiple second strip-shaped holes at equal intervals. The inner wall of each second strip-shaped hole is rotatably connected to a first output synchronous wheel. One end of the bidirectional lead screw passes through the inner wall of the first strip-shaped hole and is fixedly connected to one side of the first output synchronous wheel. The bottom of the turntable has multiple positioning support frames fixedly connected at equal intervals. The inner wall of each positioning support frame is rotatably connected to one side of the first output synchronous wheel. The outer wall of every two first output synchronous wheels is fitted with a first output synchronous belt.

[0008] In one example, a second support connecting rod is rotatably connected to one side of each of the positioning support frames, and one end of the second support connecting rod is fixedly connected to one side of the first output synchronous wheel. A first bevel gear is fixedly connected to the other end of each of the second support connecting rods. A second bevel gear is rotatably connected to the center of the bottom of the turntable, and the outer wall of the second bevel gear meshes with one side of the first bevel gear.

[0009] In one example, the bottom of the turntable is provided with a first servo motor, and the drive shaft of the second bevel gear is fixedly connected to the output end of the first servo motor.

[0010] In one example, the rotating mechanism includes a gear ring fixedly connected to the bottom of the turntable, a first gear meshing with one side of the gear ring, and the first gear being rotatably connected to one side of the bottom of the worktable. A second servo motor is provided on the top of the sliding base, and the drive shaft of the first gear is fixedly connected to the output end of the second servo motor.

[0011] In one example, the processing mechanism includes a support column fixedly connected to one side of a support base. A processing table is provided on one side of the support column, and second fixed seats are provided on both sides of the processing table. A third support connecting rod is inserted through the top of each of the two second fixed seats, and a pressure plate is fixedly connected to the bottom of each of the two third support connecting rods.

[0012] In one example, the outer walls of both of the third support connecting rods are fitted with second return springs.

[0013] In one example, a smart control panel is provided on one side of the support base. The surface of the smart control panel is provided with a first servo motor switch and a second servo motor switch. The first servo motor is electrically connected to an external power supply through the first servo motor switch and the second servo motor is electrically connected to an external power supply through the second servo motor switch.

[0014] The technical effects and advantages of this invention are as follows:

[0015] 1. This invention utilizes a turntable mounted on the top of a workbench, rotatably connected to the top of the workbench. Multiple first strip-shaped holes are provided on the top of the turntable. A bidirectional lead screw is rotatably connected to the inner wall of each first strip-shaped hole, and threaded blocks are provided on both sides of the outer wall of the bidirectional lead screw. A tapered cylinder is provided on the top of one threaded block, positioned opposite the inner hole of a flange joint. A first fixing seat is provided on the top of the other threaded block. A first supporting connecting rod is inserted into one side of each first fixing seat. A positioning arc-shaped plate is provided at one end of the first supporting connecting rod, directly opposite the outer wall of the flange joint. A first return spring is also provided on the outer wall of the first supporting connecting rod. This allows the flange joint to be placed on the top of the workbench during use, with the tapered cylinder located inside the inner hole of the flange joint. The bidirectional lead screw... When the rod rotates, it can drive the threaded blocks on both sides to move inward. During the displacement, the positioning arc plate will first contact the outer wall of the flange joint, and then perform the first step of centering and initial positioning of the flange joint. Since the positioning arc plate can reciprocate under the action of the first return spring, the positioning arc plate can always be in contact with the outer wall of the flange joint, and the conical cylinder inside the inner hole also expands at the same time. When the conical cylinder is in contact with the inner hole of the flange joint, the flange joint can be thoroughly positioned. In the process of use, through the initial centering of the external positioning arc plate, and then the secondary fixation of the internal conical cylinder, the flange joint can be more stable during the positioning process, and no manual centering is required, which improves the work efficiency in the flange joint processing process.

[0016] 2. In this invention, a second strip-shaped hole is provided at the top of the turntable, and a first output synchronous wheel is provided inside the second strip-shaped hole. The bidirectional lead screw is connected to one side of the first output synchronous wheel. A positioning support frame is provided at the bottom of the turntable, and a first output synchronous wheel is also provided on one side of the positioning support frame. The two first output synchronous wheels are connected by a first output synchronous belt. A first bevel gear is connected to one side of the first output synchronous wheel located on one side of the positioning support frame through a second support connecting rod. The first bevel gear is linked by a second bevel gear, so that when the second bevel gear rotates, it will drive the external first bevel gear to rotate synchronously, which will then rotate through the first output synchronous wheel and the first output synchronous belt. Thus, each bidirectional lead screw can rotate synchronously, thereby achieving the purpose of simultaneous expansion of the conical cylinder.

[0017] 3. In this invention, a gear ring is set at the bottom of the turntable, and a first gear is provided at the bottom of the worktable. The first gear is meshed with the outer wall of the gear ring. During use, the first gear can be driven by a second servo motor to rotate. During the rotation, the gear ring can drive the turntable to rotate, thereby rotating the flange joint located at the top of the turntable. This allows for all-round processing of the flange joint, improving the work efficiency in the flange joint processing process.

[0018] 4. In this invention, a support column is provided on one side of the support base, and a processing table is provided on one side of the support column. The processing table is mainly used to process the flange joint. Second fixed seats are provided on both sides of the processing table. A third support connecting rod is inserted and connected to the top of the second fixed seat. A pressure plate is provided at the bottom of the third support connecting rod, and a second return spring is provided on the outer wall of the third support connecting rod. During use, the pressure plate will first contact the top of the flange joint. Under the action of the second return spring, the pressure plate will exert a downward pressure. After the pressure plate presses down on the flange joint, the processing table will process the surface of the flange joint, thereby improving the stability during the processing of the flange joint.

[0019] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the top structure of the support base of the present invention;

[0023] Figure 3 This is a schematic diagram of the cross-sectional structure of the workbench of the present invention;

[0024] Figure 4 This is a schematic diagram of the positioning mechanism structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the position and structure of the gear ring and the first gear of the present invention;

[0026] Figure 6 This is a schematic diagram of the connection structure between the gear ring and the turntable of the present invention.

[0027] In the diagram: 1. Support base; 2. Slide rail; 3. Sliding base; 4. Worktable; 5. Positioning mechanism; 501. Turntable; 502. First slotted hole; 503. Double-acting lead screw; 504. Threaded block; 505. Conical cylinder; 506. First fixed seat; 507. First support connecting rod; 508. Positioning arc plate; 509. First return spring; 510. Second slotted hole; 511. First output synchronous pulley; 512. Positioning support frame; 513. First output synchronous belt; 514. Second support connecting rod; 515. Second bevel gear; 516. First bevel gear; 517. First servo motor; 6. Rotation mechanism; 601. Gear ring; 602. First gear; 603. Second servo motor; 7. Machining mechanism; 701. Support column; 702. Machining table; 703. Second fixed seat; 704. Third support connecting rod; 705. Pressure plate; 706. Second return spring. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, 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.

[0029] Please see Figure 1-6 The present invention provides a technical solution: a precision measurement and positioning processing device for flange joints, including a support base 1, a slide rail 2 on the top of the support base 1, a sliding base 3 slidably connected to the top of the slide rail 2, a worktable 4 on the top of the sliding base 3, a positioning mechanism 5 on the top of the worktable 4, a rotating mechanism 6 on the bottom of the worktable 4, and a processing mechanism 7 on one side of the support base 1.

[0030] The positioning mechanism 5 includes a turntable 501 rotatably connected to the top of the worktable 4. The top of the turntable 501 has a plurality of first strip holes 502. The inner wall of each first strip hole 502 is rotatably connected to a bidirectional lead screw 503. Both sides of the outer wall of each bidirectional lead screw 503 are threadedly connected to threaded blocks 504. A tapered cylinder 505 is fixedly connected to one side of the top of one threaded block 504, and a first fixing seat 506 is fixedly connected to the top of the other threaded block 504. A first support connecting rod 507 is inserted through one side of each first fixing seat 506. A positioning arc plate 508 is fixedly connected to one end of each first support connecting rod 507. A first return spring 509 is sleeved on the outer wall of each first support connecting rod 507.

[0031] In use, a turntable 501 is mounted on top of the worktable 4 and is rotatably connected to the top of the worktable 4. Multiple first strip-shaped holes 502 are provided on the top of the turntable 501. A double-acting lead screw 503 is rotatably connected to the inner wall of each first strip-shaped hole 502. Threaded blocks 504 are provided on both sides of the outer wall of the double-acting lead screw 503. A tapered cylinder 505 is provided on the top of one of the threaded blocks 504, and the tapered cylinder 505 is positioned opposite the inner hole of the flange joint. On the other side of the threaded block... The top of 504 is provided with a first fixing seat 506, and a first supporting connecting rod 507 is inserted and connected to one side of each first fixing seat 506. One end of the first supporting connecting rod 507 is provided with a positioning arc plate 508, which is directly opposite to the outer wall of the flange joint. A first return spring 509 is also provided on the outer wall of the first supporting connecting rod 507, so that during use, the flange joint is placed on the top of the workbench 4, and the tapered cylinder 505 is located in the inner hole of the flange joint. Inside the first slot 502, the rotation of the bidirectional lead screw 503 causes the threaded blocks 504 on both sides to move inward. During this movement, the positioning arc plate 508 first contacts the outer wall of the flange joint, thus performing the first step of centering and initial positioning of the flange joint. Since the positioning arc plate 508 can reciprocate under the action of the first return spring 509, it can always be in contact with the outer wall of the flange joint. The tapered cylinder 505 inside the inner hole also expands. When the tapered cylinder 505 is in contact with the inner hole of the flange joint, the flange joint can be thoroughly positioned. In use, the external positioning arc plate 508 performs initial centering, and then the internal tapered cylinder 505 performs secondary fixation, making the flange joint more stable during positioning and eliminating the need for manual centering, thus improving the efficiency of flange joint processing.

[0032] Furthermore, the top of the turntable 501 is provided with a plurality of second strip-shaped holes 510 at equal intervals. The inner wall of each second strip-shaped hole 510 is rotatably connected to a first output synchronous wheel 511. One end of the bidirectional lead screw 503 passes through the inner wall of the first strip-shaped hole 502 and is fixedly connected to one side of the first output synchronous wheel 511. The bottom of the turntable 501 is fixedly connected with a plurality of positioning support frames 512 at equal intervals. The inner wall of each positioning support frame 512 is rotatably connected to one side of the first output synchronous wheel 511. The outer wall of every two first output synchronous wheels 511 is fitted with a first output synchronous belt 513.

[0033] Each positioning support frame 512 is rotatably connected to a second support connecting rod 514 on one side, and one end of the second support connecting rod 514 is fixedly connected to one side of the first output synchronous wheel 511. The other end of each second support connecting rod 514 is fixedly connected to a first bevel gear 516. A second bevel gear 515 is rotatably connected to the center of the bottom of the turntable 501, and the outer wall of the second bevel gear 515 meshes with one side of the first bevel gear 516.

[0034] A second strip-shaped hole 510 is provided at the top of the turntable 501. A first output synchronous wheel 511 is provided inside the second strip-shaped hole 510, and a bidirectional lead screw 503 is connected to one side of the first output synchronous wheel 511. A positioning support frame 512 is provided at the bottom of the turntable 501. A first output synchronous wheel 511 is also provided on one side of the positioning support frame 512. The two first output synchronous wheels 511 are connected by a first output synchronous belt 513. A first bevel gear 516 is connected to one side of the first output synchronous wheel 511 located on one side of the positioning support frame 512 through a second support connecting rod 514. The first bevel gear 516 is linked by a second bevel gear 515, so that when the second bevel gear 515 rotates, it will drive the external first bevel gear 516 to rotate synchronously, which will then rotate through the first output synchronous wheel 511 and the first output synchronous belt 513. Thus, each bidirectional lead screw 503 can rotate synchronously, thereby achieving the purpose of simultaneous expansion of the conical cylinder 505.

[0035] Furthermore, a first servo motor 517 is provided at the bottom of the turntable 501, and the drive shaft of the second bevel gear 515 is fixedly connected to the output end of the first servo motor 517.

[0036] The first servo motor 517 located at the bottom of the turntable 501 is mainly used to drive the second bevel gear 515 to rotate, thereby driving the positioning mechanism 5.

[0037] Furthermore, the rotating mechanism 6 includes a gear ring 601 fixedly connected to the bottom of the turntable 501. A first gear 602 is meshed with one side of the gear ring 601, and the first gear 602 is rotatably connected to one side of the bottom of the worktable 4. A second servo motor 603 is provided on the top of the sliding base 3, and the transmission shaft of the first gear 602 is fixedly connected to the output end of the second servo motor 603.

[0038] In use, a gear ring 601 is set at the bottom of the turntable 501, and a first gear 602 is provided at the bottom of the worktable 4. The first gear 602 is meshed with the outer wall of the gear ring 601. During use, the first gear 602 can be driven to rotate by the second servo motor 603. During the rotation, the gear ring 601 can be driven to rotate the turntable 501, thereby rotating the flange joint located at the top of the turntable 501. This allows for all-round processing of the flange joint, improving the work efficiency in the flange joint processing process.

[0039] Furthermore, the processing mechanism 7 includes a support column 701 fixedly connected to one side of the support base 1, a processing table 702 on one side of the support column 701, second fixed seats 703 on both sides of the processing table 702, a third support connecting rod 704 inserted through the top of each of the two second fixed seats 703, and a pressure plate 705 fixedly connected to the bottom of each of the two third support connecting rods 704.

[0040] The outer walls of both third support connecting rods 704 are fitted with second return springs 706.

[0041] In use, a support column 701 is installed on one side of the support base 1, and a processing table 702 is provided on one side of the support column 701. The processing table 702 is mainly used to process the flange joint. Second fixed seats 703 are provided on both sides of the processing table 702. A third support connecting rod 704 is inserted through the top of the second fixed seat 703, and a pressure plate 705 is provided at the bottom of the third support connecting rod 704. A second return spring 706 is provided on the outer wall of the third support connecting rod 704. During use, the pressure plate 705 will first contact the top of the flange joint. Under the action of the second return spring 706, the pressure plate 705 will have a downward pressure. After the pressure plate 705 presses down on the flange joint, the processing table 702 will process the surface of the flange joint, thereby improving the stability during the processing of the flange joint.

[0042] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A precision measuring and positioning processing device for flange joints, comprising a support base (1), a slide rail (2) on the top of the support base (1), a sliding base (3) slidably connected to the top of the slide rail (2), a worktable (4) on the top of the sliding base (3), a positioning mechanism (5) on the top of the worktable (4), a rotating mechanism (6) on the bottom of the worktable (4), and a processing mechanism (7) on one side of the support base (1). Its features are: The positioning mechanism (5) includes a turntable (501) rotatably connected to the top of the workbench (4). The top of the turntable (501) is provided with a plurality of first strip holes (502). The inner wall of each first strip hole (502) is rotatably connected with a bidirectional lead screw (503). Both sides of the outer wall of each bidirectional lead screw (503) are threadedly connected with threaded blocks (504). A conical cylinder (505) is fixedly connected to one side of the top of one of the threaded blocks (504). The top of the other threaded block (504) is fixedly connected with a first fixed seat (506). A first support connecting rod (507) is inserted through one side of each first fixed seat (506). A positioning arc plate (508) is fixedly connected to one end of each first support connecting rod (507). A first return spring (509) is sleeved on the outer wall of each first support connecting rod (507).

2. The precision measuring and positioning machining device for flange joints according to claim 1, characterized in that: The top of the turntable (501) is provided with a plurality of second strip holes (510) at equal intervals. The inner wall of each second strip hole (510) is rotatably connected to a first output synchronous wheel (511). One end of the bidirectional lead screw (503) passes through the inner wall of the first strip hole (502) and is fixedly connected to one side of the first output synchronous wheel (511). The bottom of the turntable (501) is fixedly connected with a plurality of positioning support frames (512) at equal intervals. The inner wall of each positioning support frame (512) is rotatably connected to one side of the first output synchronous wheel (511). The outer wall of every two first output synchronous wheels (511) is fitted with a first output synchronous belt (513).

3. The precision measuring and positioning machining device for flange joints according to claim 2, characterized in that: Each of the positioning support frames (512) is rotatably connected to one side of a second support connecting rod (514), and one end of the second support connecting rod (514) is fixedly connected to one side of the first output synchronous wheel (511). The other end of each of the second support connecting rods (514) is fixedly connected to a first bevel gear (516). A second bevel gear (515) is rotatably connected to the center of the bottom of the turntable (501), and the outer wall of the second bevel gear (515) meshes with one side of the first bevel gear (516).

4. The precision measuring and positioning processing device for flange joints according to claim 3, characterized in that: The bottom of the turntable (501) is provided with a first servo motor (517), and the drive shaft of the second bevel gear (515) is fixedly connected to the output end of the first servo motor (517).

5. The precision measuring and positioning machining device for flange joints according to claim 1, characterized in that: The rotating mechanism (6) includes a gear ring (601) fixedly connected to the bottom of the turntable (501). A first gear (602) is meshed on one side of the gear ring (601), and the first gear (602) is rotatably connected to one side of the bottom of the worktable (4). A second servo motor (603) is provided on the top of the sliding base (3), and the drive shaft of the first gear (602) is fixedly connected to the output end of the second servo motor (603).

6. The precision measuring and positioning machining device for flange joints according to claim 1, characterized in that: The processing mechanism (7) includes a support column (701) fixedly connected to one side of the support base (1). A processing table (702) is provided on one side of the support column (701). Second fixed seats (703) are provided on both sides of the processing table (702). A third support connecting rod (704) is inserted through the top of each of the two second fixed seats (703). A pressure plate (705) is fixedly connected to the bottom of each of the two third support connecting rods (704).

7. The precision measuring and positioning machining device for flange joints according to claim 6, characterized in that: The outer walls of both third support connecting rods (704) are fitted with second return springs (706).

8. The precision measuring and positioning machining device for flange joints according to claim 4, characterized in that: The support base (1) is provided with an intelligent control panel on one side. The surface of the intelligent control panel is provided with a first servo motor switch and a second servo motor switch. The first servo motor (517) is electrically connected to an external power supply through the first servo motor switch and the second servo motor (603) is connected to an external power supply through the second servo motor switch.

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