Automatic chamfering machine for flange machining

Abstract

The present disclosure relates to the technical field of flange processing, and one embodiment of the present disclosure provides an automatic chamfering machine for flange processing, which comprises a frame body and a rectangular column, the rectangular column is arranged on the frame body, a chamfering processing assembly is arranged on the rectangular column, and a clamping and cleaning assembly is arranged on the frame body, the clamping and cleaning assembly comprises a circular groove, the circular groove is arranged on the surface of the frame body, a boss is arranged in the circular groove, a gap is left between the edge of the boss and the inner wall of the circular groove, a plurality of through holes are arranged on the surface of the boss, and a clamping column is horizontally and slidably connected in the through holes. Through the above technical scheme, the technical problem that the existing equipment in the prior art is fixed on the flange by using special tooling, the corresponding tooling needs to be replaced to complete positioning for flanges of different diameter specifications, and there is a lack of flexible and adaptive general fixing structure is solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the technical field of flange processing, and more specifically, to an automatic chamfering machine for flange processing. Background Technology

[0002] As a core component for pipe and equipment connections, the quality of the chamfering at the flange's ends directly affects sealing performance and assembly safety. Automatic chamfering machines are key equipment for achieving efficient flange chamfering, and the adaptability of the workpiece fixing mechanism directly determines processing efficiency and ease of changeover. With flange manufacturing moving towards multi-specification, mass production, the fixing deficiencies of traditional chamfering machines are becoming increasingly apparent: existing equipment mostly uses specialized tooling to fix flanges, requiring the replacement of corresponding tooling for flanges of different diameters to complete positioning, lacking a flexible and universal fixing structure.

[0003] The drawbacks of traditional fixing methods are particularly prominent: when changing flange specifications, it is necessary to disassemble the original tooling and install the new tooling, and repeatedly calibrate the positioning reference. The operation is cumbersome and time-consuming, resulting in excessive downtime and waiting time, which seriously restricts the continuity of production. In order to adapt to the processing of multiple specifications, a large number of different types of tooling need to be stored, which not only increases the cost of equipment investment, but also occupies additional storage space. Manual disassembly and calibration are prone to positioning deviations, resulting in quality problems such as uneven chamfer dimensions and angle deviations. The tooling adjustment during frequent changes is labor-intensive and difficult to adapt to the needs of rapid changes in mass production.

[0004] Therefore, developing an automatic chamfering machine that does not require frequent tooling changes and can be adapted to flanges of different diameters has become an urgent need to solve the pain points of traditional methods. Utility Model Content

[0005] To overcome the above-mentioned defects, the embodiments of this disclosure provide an automatic chamfering machine for flange processing, which solves the technical problem that existing equipment mostly uses special tooling to fix flanges, and for flanges of different diameters, corresponding tooling needs to be changed to complete the positioning, lacking a flexible and adaptable universal fixing structure.

[0006] According to one aspect, at least one embodiment of this disclosure provides an automatic chamfering machine for flange processing, comprising: A frame and rectangular columns, wherein the rectangular columns are mounted on the frame; A chamfering component is disposed on the rectangular column; A clamping and cleaning assembly is mounted on the frame. The clamping and cleaning assembly includes a circular groove, which is formed on the surface of the frame. A boss is provided in the circular groove, and there is a gap between the edge of the boss and the inner wall of the circular groove. Several through holes are formed on the surface of the boss, and clamping columns are horizontally slidably connected in the through holes.

[0007] As a further technical solution, a number of telescopic hydraulic cylinders are horizontally fixedly connected to the bottom of the frame. The output end of the telescopic hydraulic cylinder is fixedly connected to the clamping column, and the upper end of the clamping column passes through the through hole and is located at the upper end of the protrusion.

[0008] As a further technical solution, a cleaning port is provided on the side end face of the frame, the cleaning port is connected to the circular groove, and a slag discharge hopper is provided on the side surface of the frame, the slag discharge hopper being located below the cleaning port.

[0009] According to another aspect, in at least one embodiment of the present invention, the chamfering assembly includes a lifting frame, which is connected to the rectangular column by a vertical linear drive, and a rotating platform that is electrically driven to rotate is provided at the bottom of the lifting frame.

[0010] As a further technical solution, the rotating platform is provided with a slide connected by a horizontal linear drive, the bottom of the slide is rotatably connected to a mounting sleeve, the mounting sleeve is rotated by electric drive, and a rotating seat is rotatably connected to the surface of the frame.

[0011] As a further technical solution, a side opening is provided on the side surface of the frame, an external gear is provided around the side surface of the rotating seat, a drive motor is provided at the bottom of the frame, a drive gear is provided at the output end of the drive motor, and the drive gear meshes with the external gear.

[0012] As a further technical solution, the axis of the rotating platform drive part is at the same position as the axis of the boss.

[0013] As a further technical solution, the drive motor is a brushless DC motor with a locking structure.

[0014] The beneficial effects of the embodiments disclosed herein are as follows: This disclosure addresses the problems of poor adaptability and cumbersome changeover associated with traditional dedicated tooling by employing a clamping and cleaning assembly. Multiple clamping columns are evenly distributed along the circumference of the boss and synchronously driven by telescopic hydraulic cylinders, allowing for flexible adjustment of the clamping range. This eliminates the need to change tooling to accommodate flanges of different diameters, significantly reducing downtime for changeovers and minimizing tooling inventory costs and storage space. The clamping columns slide horizontally along the through-hole, ensuring even force distribution on the flange and preventing clamping deformation or positioning misalignment, thus guaranteeing chamfer dimensional accuracy. The boss provides a stable support surface, further enhancing clamping stability.

[0015] The spacing between the circular groove and the boss forms an annular chip removal channel. Waste chips fall quickly into the slag hopper through the cleaning port, avoiding accumulation in the processing area. This protects the tool and flange surfaces from scratches, eliminates the need for manual cleaning, reduces labor intensity, ensures processing continuity and cleanliness, and is suitable for mass production needs. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0017] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure; Figure 2 This is an isometric drawing of the present disclosure; Figure 3 This is an isometric sectional view of the present disclosure; In the diagram: 1. Frame; 2. Rectangular column; 3. Clamping and cleaning assembly; 3-1. Circular groove; 3-2. Boss; 3-3. Through hole; 3-4. Clamping column; 3-5. Telescopic hydraulic cylinder; 3-6. Cleaning port; 3-7. Slag discharge hopper; 4. Chamfering assembly; 4-1. Lifting frame; 4-2. Rotating platform; 4-3. Slide; 4-4. Mounting sleeve; 4-5. Rotating seat; 4-6. Side opening; 4-7. External gear; 4-8. Drive motor; 4-9. Drive gear. Detailed Implementation

[0018] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0019] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0020] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0021] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0023] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] like Figures 1-3 As shown, an automatic chamfering machine for flange processing is illustrated in one embodiment of this disclosure, comprising: A frame 1 and rectangular columns 2, wherein the rectangular columns 2 are mounted on the frame 1; A chamfering component is disposed on the rectangular column 2; Clamping and cleaning assembly 3, wherein the clamping and cleaning assembly 3 is disposed on the frame 1; The clamping and cleaning assembly 3 includes a circular groove 3-1, which is formed on the surface of the frame 1. A boss 3-2 is provided in the circular groove 3-1, and there is a gap between the edge of the boss 3-2 and the inner wall of the circular groove 3-1. Several through holes 3-3 are formed on the surface of the boss 3-2, and clamping columns 3-4 are horizontally slidably connected in the through holes 3-3. Several telescopic hydraulic cylinders 3-5 are horizontally fixedly connected to the bottom of the frame 1. The output end of the telescopic hydraulic cylinder 3-5 is fixedly connected to the clamping column 3-4. The upper end of the clamping column 3-4 passes through the through hole 3-3 and is located above the boss 3-2. A cleaning port 3-6 is formed on the side end face of the frame 1, and the cleaning port 3-6 is connected to the circular groove 3-1. A slag discharge hopper 3-7 is provided on the side surface of the frame 1, and the slag discharge hopper 3-7 is located below the cleaning port 3-6.

[0025] In some examples, in order to achieve fast and stable clamping of flanges and efficient cleaning of machining waste, and to solve the problems of uneven force and waste accumulation affecting machining accuracy in traditional clamping, a clamping and cleaning component 3 was designed. This component includes a frame 1 made of high-strength steel welded together, with the surface milled to ensure flatness. Rectangular columns 2 are vertically fixed to the surface of the frame 1 by full welding to form a rigid support frame, providing a stable installation reference for clamping and chamfering components, and avoiding positioning offset caused by vibration during machining.

[0026] The circular groove 3-1 on the surface of the frame 1 is integrally milled. The boss 3-2 inside the groove is integrally machined with the frame 1. The surface of the boss 3-2 is precision ground and serves as a support reference surface for flange placement. The gap between the edge of the boss 3-2 and the inner wall of the circular groove 3-1 forms an annular chip removal channel, facilitating the flow and collection of waste chips. Several through holes 3-3 on the surface of the boss 3-2 are evenly distributed around the circumference. The hole walls are polished to reduce friction. The clamping column 3-4 slides horizontally with the through holes 3-3. The upper end extends out of the surface of the boss 3-2 to clamp the flange, and the lower end is rigidly connected to the output end of the telescopic hydraulic cylinder 3-5 at the bottom of the frame 1 by bolts. Multiple sets of hydraulic cylinders operate synchronously, driving the clamping column 3-4 to move radially along the through holes 3-3, realizing rapid centering and clamping of the flange and preventing flange offset during clamping.

[0027] The cleaning port 3-6 on the side end face of the frame 1 is connected to the circular groove 3-1, serving as a channel for waste chip discharge. The chip discharge hopper on the side surface is fixed by the bracket bolts and is located directly below the cleaning port 3-6. Waste chips are collected in the annular channel to the cleaning port 3-6 and slide down the chip discharge hopper to the collection device, avoiding the accumulation of waste chips in the processing area and ensuring the cleanliness and processing accuracy of the chamfering process.

[0028] like Figures 1-3As shown in the figure, the chamfering component proposed in this embodiment includes a lifting frame 4-1, which is vertically linearly driven and connected to the rectangular column 2. The bottom of the lifting frame 4-1 is provided with a rotating platform 4-2 driven by electricity. The rotating platform 4-2 is provided with a slide 4-3 connected by horizontal linear drive. The bottom of the slide 4-3 is rotatably connected to a mounting sleeve 4-4, which is driven by electricity. A rotating seat 4-5 is horizontally rotatably connected to the surface of the frame 1. A side opening 4-6 is opened on the side surface of the frame 1. An external gear 4-7 is arranged around the side surface of the rotating seat 4-5. A drive motor 4-8 is provided at the bottom of the frame 1. A drive gear 4-9 is provided at the output end of the drive motor 4-8. The drive gear 4-9 meshes with the external gear 4-7.

[0029] In some examples, in order to achieve rapid chamfering and precise adaptation of processing positions for flanges of different specifications, and to solve the problems of cumbersome adjustment and poor adaptability of traditional chamfering machines, a chamfering processing component was designed. This component includes a rectangular column 2 with a hollow steel structure and a pre-set guide rail inside. The lifting frame 4-1 is connected to the rectangular column 2 through a vertical linear drive component (such as an electric push rod) and rises and falls smoothly along the guide rail. The chamfering height can be adjusted according to the flange thickness, providing an adaptation basis for chamfering flanges of different thicknesses.

[0030] The rotating platform 4-2 at the bottom of the lifting frame 4-1 is driven to rotate by a servo motor. A guide groove is opened inside the platform, and a horizontal linear drive component (such as a precision slide) is fixed inside the platform. The output end is rigidly connected to the slide 4-3, driving the slide 4-3 to move horizontally along the guide groove, realizing the radial position adjustment of the chamfering tool to adapt to the chamfering requirements of flanges of different diameters. The bottom of the slide 4-3 is rotatably connected to the mounting sleeve 4-4 via a bearing. The mounting sleeve 4-4 is driven to rotate by an independent motor and is used to mount and fix the chamfering tool. The motor drives the mounting sleeve 4-4 to rotate at high speed, providing cutting power for chamfering. The rotating seat 4-5 on the surface of the frame 1 is horizontally rotatably connected via a deep groove ball bearing. The external gear 4-7 on the side surface is keyed to the rotating seat 4-5. The drive motor 4-8 at the bottom of the frame 1 is fixed by a motor mount. The drive gear 4-9 at the output end precisely meshes with the external gear 4-7, forming a transmission link, driving the rotating seat 4-5 to synchronously rotate the flange clamped above.

[0031] During operation, after the flange is clamped and fixed, the lifting frame 4-1 adjusts its height and the slide 4-3 adjusts its radial position so that the chamfering tool is aligned with the chamfering position of the flange. The mounting sleeve 4-4 drives the tool to rotate, and the rotating seat 4-5 drives the flange to rotate, achieving all-round rapid chamfering. The multi-dimensional adjustment structure ensures that flanges of different specifications can be quickly adapted for processing.

[0032] For example, such as Figure 3As shown, the axis of the drive part of the rotating platform 4-2 is at the same position as the axis of the boss 3-2.

[0033] In some examples, the drive section of the rotary table 4-2 is coaxial with the axis of the boss 3-2. The rotary table 4-2 is rigidly connected to the output end of the servo motor via a flange, and the motor is precisely fixed to the bottom center of the lifting frame 4-1. This coaxial design ensures that the chamfering tool is always aligned with the center of the flange. Combined with the rotation of the rotary table 4-2 and the horizontal fine adjustment of the slide 4-3, the tool can conform to the chamfering trajectory of flanges with different diameters, avoiding uneven chamfering depth caused by eccentricity, and greatly improving the circumferential accuracy and consistency of the chamfering.

[0034] For example, such as Figure 2 As shown, the drive motors 4-8 are brushless DC motors with a locking structure.

[0035] In some examples, the drive motor 4-8 is a brushless DC motor with electromagnetic locking, fixed to the bottom of the frame 1 by a motor mount, and the output drive gear 4-9 precisely meshes with the external gear 4-7. The brushless structure reduces operating noise and wear, ensuring stable speed; the electromagnetic locking structure locks the output shaft immediately when the motor stops, preventing the rotating seat 4-5 from rotating accidentally, and also provides stable locking when adjusting the chamfer position, adapting to the stable rotation requirements of precision flange chamfering.

[0036] In actual use: Securely install the frame 1 and rectangular column 2 at the processing station, ensuring that all components are connected without looseness, and keep the surface of the boss 3-2 clean and free of debris; place the flange to be processed on the surface of the boss 3-2, activate the telescopic hydraulic cylinder 3-5 at the bottom of the frame 1, driving the clamping column 3-4 to slide horizontally along the through hole 3-3, converging synchronously from all sides towards the center, precisely clamping the flange to achieve centering and fixation; adjust the height of the lifting frame 4-1 inside the rectangular column 2 according to the flange thickness using the vertical linear drive, so that the chamfering tool is close to the flange port; activate the electric drive of the rotating table 4-2, and adjust the position of the slide 4-3 in conjunction with the horizontal linear drive. With the mounting sleeve 4-4 in place, the chamfering tool is aligned with the chamfering area. The drive motor 4-8 is started, and through the meshing of the drive gear 4-9 and the external gear 4-7, the rotating seat 4-5 and the flange rotate at a constant speed. At the same time, the electric drive of the mounting sleeve 4-4 is started, and the tool rotates at high speed to perform automatic chamfering. The waste generated by chamfering falls into the gap between the boss 3-2 and the circular groove 3-1, and is collected along the cleaning port 3-6 to be discharged into the slag discharge hopper 3-7 to avoid accumulation and affecting the processing. After the chamfering is completed, all drive components are turned off, and the telescopic hydraulic cylinder 3-5 drives the clamping column 3-4 to reset and release the flange. The processed flange is then removed, completing one automatic chamfering process.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. An automatic chamfering machine for flange processing, characterized in that, include: A frame (1) and rectangular columns (2), wherein the rectangular columns (2) are mounted on the frame (1); A chamfering component (4) is disposed on the rectangular column (2); Clamping and cleaning assembly (3), the clamping and cleaning assembly (3) is disposed on the frame (1); The clamping and cleaning assembly (3) includes a circular groove (3-1) formed on the surface of the frame (1). A boss (3-2) is provided in the circular groove (3-1). There is a gap between the edge of the boss (3-2) and the inner wall of the circular groove (3-1). Several through holes (3-3) are formed on the surface of the boss (3-2). A clamping column (3-4) is horizontally slidably connected in the through holes (3-3).

2. The automatic chamfering machine for flange processing according to claim 1, characterized in that, The bottom of the frame (1) is horizontally fixedly connected with several telescopic hydraulic cylinders (3-5). The output end of the telescopic hydraulic cylinder (3-5) is fixedly connected to the clamping column (3-4). The upper end of the clamping column (3-4) passes through the through hole (3-3) and is located at the upper end of the boss (3-2).

3. An automatic chamfering machine for flange processing according to claim 2, characterized in that, The frame (1) has a cleaning port (3-6) on its side end face. The cleaning port (3-6) is connected to the circular groove (3-1). The side surface of the frame (1) is provided with a slag discharge hopper (3-7), which is located below the cleaning port (3-6).

4. An automatic chamfering machine for flange processing according to claim 1, characterized in that, The chamfering assembly (4) includes a lifting frame (4-1), which is connected to the rectangular column (2) by a vertical linear drive. The bottom of the lifting frame (4-1) is provided with a rotating platform (4-2) that is driven by electricity.

5. An automatic chamfering machine for flange processing according to claim 4, characterized in that, The rotating frame (4-2) is provided with a slide (4-3) connected by a horizontal linear drive. The bottom of the slide (4-3) is rotatably connected to a mounting sleeve (4-4). The mounting sleeve (4-4) is rotated by electric drive. The frame (1) is horizontally rotatably connected to a rotating seat (4-5).

6. An automatic chamfering machine for flange processing according to claim 5, characterized in that, The frame (1) has a side opening (4-6) on its side surface. The rotating seat (4-5) has an external gear (4-7) arranged around its side surface. The frame (1) has a drive motor (4-8) at its bottom. The drive motor (4-8) has a drive gear (4-9) at its output end. The drive gear (4-9) meshes with the external gear (4-7).

7. An automatic chamfering machine for flange processing according to claim 4, characterized in that, The axis of the drive part of the rotating platform (4-2) is at the same position as the axis of the boss (3-2).

8. An automatic chamfering machine for flange processing according to claim 6, characterized in that, The drive motor (4-8) is a brushless DC motor with a locking structure.

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