A fixing mechanism suitable for stainless steel pipe fitting machining and a using method thereof

Abstract

This invention discloses a fixing mechanism and its usage method suitable for stainless steel pipe processing, relating to the field of stainless steel pipe processing technology. Specifically, it is a fixing mechanism and its usage method suitable for stainless steel pipe processing, including a support frame. The support frame has a transmission control mechanism inside, and a clamping and translation mechanism slidably connected to the top of the transmission control mechanism. The top of the clamping and translation mechanism is fixedly connected to the bottom of a support panel. A support angle iron is fixedly connected to the side of the support panel away from the center line of the support frame, and a steel pipe positioning clamp is fixedly connected to the top of the support panel. This fixing mechanism and its usage method suitable for stainless steel pipe processing can clamp stainless steel pipes of different diameters and maintain the coaxiality between the stainless steel pipe and the processing equipment during clamping and processing, eliminating the need for pre-processing correction of the steel pipe.

Description

Technical Field

[0001] This invention relates to the field of stainless steel pipe processing technology, specifically to a fixing mechanism suitable for processing stainless steel pipe fittings and its usage method. Background Technology

[0002] Stainless steel pipe is an economical type of steel material and an important product in the steel industry. It is widely used in both residential and industrial applications, including stair railings, window guards, balustrades, and furniture. Common grades include 201 and 304. Stainless steel pipe is a hollow, long, round steel material, primarily used in industrial pipelines for petroleum, chemical, medical, food, light industry, and machinery, as well as in mechanical structural components. Furthermore, it is lighter in weight while maintaining the same bending and torsional strength, making it widely used in manufacturing mechanical parts and engineering structures. It is also commonly used in furniture and kitchenware. Stainless steel pipes are classified by material into ordinary carbon steel pipes and high-quality carbon structural steel pipes. Stainless steel pipes include alloy structural pipes, alloy steel pipes, bearing steel pipes, stainless steel pipes, as well as bimetallic composite pipes, plated and coated pipes, etc., which save precious metals and meet special requirements. Stainless steel pipes are diverse in type, application, technical requirements, and production methods. Currently produced steel pipes range in outer diameter from 0.1 to 4500 mm and wall thickness from 0.01 to 250 mm. To distinguish their characteristics, steel pipes are usually classified as follows: Stainless steel pipes are divided into two main categories according to production method: seamless pipes and welded pipes. Seamless steel pipes can be further divided into hot-rolled pipes, cold-rolled pipes, cold-drawn pipes, and extruded pipes, etc. Cold drawing and cold rolling are secondary processing of steel pipes. Welded pipes are divided into straight seam welded pipes and spiral welded pipes, etc.

[0003] Existing patent (publication number: CN113333852A) discloses a stainless steel pipe cutting fixture, including a clamping mechanism. The clamping mechanism comprises a worktable, a first baffle, a second baffle, a cylinder, a push rod, two mounting plates, and two clamping components. Both the first and second baffles are vertically fixed to the upper surface of the worktable. One mounting plate is fixedly mounted on the side wall of the first baffle via a connecting rod, and the other mounting plate is fixedly connected to the push rod. The push rod is slidably connected through the second baffle. The cylinder is fixedly mounted on the worktable, and its output end is connected to the push rod to drive the push rod to slide. This invention provides a more stable clamping of the steel pipe to be cut and is suitable for steel pipes of different diameters. Furthermore, it allows for water spraying to cool the steel pipe during clamping, preventing overheating and deformation during cutting, and effectively suppressing high-temperature flying debris that could cause injury. Currently, there are two main types of clamping methods used in steel pipe processing. One method involves pressing the steel pipe from both sides. This method is simple in structure, but the horizontal height of the steel pipe cannot be guaranteed to be level depending on the diameter of the pipe. The tool or the height of the steel pipe needs to be readjusted during processing. The other method uses a cylindrical structure to fix and press the steel pipe around its circumference based on the central axis of the pipe. This method is not convenient to operate and has limited applicability to different diameter steel pipes, failing to meet the needs of users. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a fixing mechanism and its usage method suitable for processing stainless steel pipe fittings. It solves the problems mentioned in the background section regarding clamping methods in steel pipe processing, which can be divided into two main categories: one involves pressing the steel pipe from both sides, a simple structure, but the horizontal height of the steel pipe cannot be guaranteed to be level depending on its diameter, requiring readjustment of the cutting tool or pipe height during processing; the other uses a cylindrical structure to fix and press the steel pipe around its circumference using its central axis as a reference, but this structure is not convenient to operate and has limited applicability to steel pipes of different diameters.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: a fixing mechanism suitable for processing stainless steel pipe fittings and its usage method, comprising a support frame, wherein a transmission control mechanism is provided inside the support frame, and a clamping translation mechanism is slidably connected to the top of the transmission control mechanism and the top of the clamping translation mechanism is fixedly connected to the bottom of the support panel.

[0006] A support angle iron is fixedly connected to the side of the support panel away from the center line of the support frame, and a steel pipe positioning clamp is fixedly connected to the top of the support panel.

[0007] Optionally, three steel pipe positioning clamps are provided, each of which is a bent structure and is staggered among itself.

[0008] Optionally, the transmission control mechanism includes a positioning bearing that fits into the bottom end of the support frame;

[0009] The positioning bearing is inserted between its interior and the bottom end of the support shaft, and the support shaft passes through the interior of the transmission gear and the control gear from bottom to top.

[0010] One side of the transmission gear is engaged with a transmission worm gear, and a control shaft passes through the inside of the transmission worm gear. One end of the control shaft is movably connected to the inner wall of the support frame, and the other end of the control shaft passes through the support frame and is inserted into the inside of the rocker arm.

[0011] Optionally, the central axes of the support shaft, transmission gear, and control gear are aligned.

[0012] Optionally, the transmission gear and the transmission worm are at the same horizontal height, and the transmission worm forms a rotating structure through a control shaft.

[0013] Optionally, the clamping translation mechanism includes a horizontal slider that is slidably connected to the top of the support frame, and three horizontal sliders are provided in the horizontal direction;

[0014] Each of the three horizontal sliders has a matching slot between each other, and a rack that meshes with one side of the control gear is fixedly connected to the bottom of each horizontal slider.

[0015] Optionally, the three horizontal sliders correspond one-to-one with the three steel pipe positioning clamps.

[0016] Optionally, the racks are symmetrically distributed about the central axis of the control gear.

[0017] Optionally, the support frame includes an operating platform, the bottom of which is fixedly connected to a transmission box housing, and the bottom of the transmission box housing is fixedly connected to four support legs. The four support legs are connected to each other in pairs via connecting rods, and the bottom of each support leg is inserted into the interior of a pressure-bearing foot.

[0018] Optionally, the specific steps for using the fixing mechanism suitable for stainless steel pipe processing are as follows:

[0019] S1. Users can place the steel pipe to be processed between the steel pipe positioning clamps by means of a crane or transportation, with the orientation of the steel pipe perpendicular to the opening orientation of the steel pipe positioning clamp.

[0020] S2. The user controls the rotation of the shaft and the transmission worm by rotating the rocker arm clockwise.

[0021] S3. The transmission worm and the transmission gear mesh to drive the transmission gear and the control gear to rotate around the support shaft as the center.

[0022] S4. By controlling the meshing between the gear and the rack, the horizontal sliders slide horizontally towards each other until the inner walls of the three intersecting steel pipe positioning clamps are in contact with the outer surface of the steel pipes.

[0023] S5. After the steel pipe is fixed, the user performs processing operations on the ends of the steel pipe.

[0024] S6. After the steel pipe processing operation is completed, the user can rotate the rocker arm counterclockwise and repeat the steps S2-S4 above.

[0025] S7. Continue until the distance between the positioning clamps of the steel pipe is greater than the outer diameter of the steel pipe.

[0026] This invention provides a fixing mechanism and its usage method suitable for processing stainless steel pipe fittings, which has the following beneficial effects:

[0027] 1. This fixing mechanism and its usage method are applicable to the processing of stainless steel pipe fittings. The bent steel pipe positioning clamps are distributed on both sides of the steel pipe. The steel pipe can be clamped and fixed from both sides by means of the staggered steel pipe positioning clamps. The geometric center of the steel pipe positioning clamps remains unchanged during the horizontal adjustment process, so that the device can be used for steel pipes of various diameters. Moreover, the uniqueness of the central axis of steel pipes of different diameters during the clamping and fixing process improves the tool setting efficiency in the steel pipe processing process.

[0028] 2. This fixing mechanism for stainless steel pipe processing and its usage method features a coaxial transmission gear and a control gear that rotate synchronously at the same speed. A worm gear transmission structure is used between the transmission gear and the transmission worm. The user can control the rotation of the transmission gear by rotating the transmission worm, thereby directly controlling the forward and reverse rotation of the control gear. The power transmission between the transmission gear and the transmission worm is unidirectional. When the transmission gear reverses direction, a self-locking state is formed, thereby improving the accuracy of the control gear's control over the rack movement and preventing the rack from moving in the opposite direction during the pressure fixing process of the steel pipe.

[0029] 3. The fixing mechanism applicable to the processing of stainless steel pipe fittings and its usage method: three horizontal sliders are distributed equidistantly in the horizontal direction. The edges of two adjacent horizontal sliders are engaged with each other by means of a groove. The edges of the two outer horizontal sliders are slidably connected to the support frame in the same way. Only the bottom ends of two horizontal sliders are provided with racks. The racks are horizontally translated under the action of the controlled gear rotation, thereby causing the horizontal sliders to drive the steel pipe positioning clamps to move horizontally. The different spacing between the steel pipe positioning clamps is used to clamp steel pipes of different diameters. Attached Figure Description

[0030] Figure 1 A front view structural diagram of the fixing mechanism applicable to the processing of stainless steel pipe fittings and its usage method;

[0031] Figure 2 This is a side view of the fixing mechanism applicable to the processing of stainless steel pipe fittings and its usage method.

[0032] Figure 3 A frontal full-section structural diagram of the fixing mechanism applicable to the processing of stainless steel pipe fittings and its usage method;

[0033] Figure 4 A frontal full-section structural diagram of the fixing mechanism applicable to the processing of stainless steel pipe fittings and its usage method;

[0034] Figure 5 This is a side view full sectional structural diagram of the fixing mechanism applicable to the processing of stainless steel pipe fittings and its usage method;

[0035] Figure 6 This describes a fixing mechanism suitable for the processing of stainless steel pipe fittings and its usage method. Figure 5 A magnified structural diagram at point A in the diagram.

[0036] In the diagram: 1. Support frame; 101. Operating table; 102. Transmission box housing; 103. Support leg; 104. Connecting rod; 105. Pressure-bearing support foot; 2. Transmission control mechanism; 201. Positioning bearing; 202. Support shaft; 203. Transmission gear; 204. Control gear; 205. Transmission worm gear; 206. Control shaft; 207. Rocker arm; 3. Clamping and translation mechanism; 301. Horizontal slider; 302. Slot; 303. Rack; 4. Support panel; 5. Support angle iron; 6. Steel pipe positioning clamp. Detailed Implementation

[0037] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0038] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0040] Please see Figures 1 to 6 The present invention provides a technical solution: a fixing mechanism and its usage method suitable for processing stainless steel pipe fittings, including a support frame 1, a transmission control mechanism 2 is provided inside the support frame 1, a clamping and translation mechanism 3 is engaged at the top of the transmission control mechanism 2 and slidably connected to the top of the support frame 1, and the top of the clamping and translation mechanism 3 is fixedly connected to the bottom of the support panel 4.

[0041] A support angle iron 5 is fixedly connected to the side of the support panel 4 away from the center line of the support frame 1. A steel pipe positioning clamp 6 is fixedly connected to the top of the support panel 4. There are three steel pipe positioning clamps 6. All three steel pipe positioning clamps 6 are bent structures and are staggered among each other.

[0042] The bent steel pipe positioning clamps 6 are distributed on both sides of the steel pipe. The steel pipe can be clamped and fixed from both sides by means of the staggered steel pipe positioning clamps 6. The geometric center of the steel pipe positioning clamps 6 remains unchanged during the horizontal adjustment process, so that the device can be used for steel pipes of various diameters. Furthermore, the uniqueness of the central axis of steel pipes of different diameters during the clamping and fixing process improves the tool setting efficiency during the steel pipe processing.

[0043] The transmission control mechanism 2 includes a positioning bearing 201 that fits into the bottom end of the support frame 1;

[0044] The positioning bearing 201 is inserted into the bottom end of the support shaft 202. The support shaft 202 passes through the interior of the transmission gear 203 and the control gear 204 from bottom to top. The central axes of the support shaft 202, the transmission gear 203 and the control gear 204 are aligned.

[0045] The transmission gear 203 and the control gear 204 are coaxial and rotate synchronously during use, with the same speed.

[0046] A transmission worm 205 meshes with one side of the transmission gear 203. A control shaft 206 passes through the inside of the transmission worm 205. The transmission gear 203 and the transmission worm 205 are at the same horizontal height, and the transmission worm 205 forms a rotating structure through the control shaft 206.

[0047] One end of the control shaft 206 is movably connected to the inner wall of the support frame 1, and the other end of the control shaft 206 passes through the support frame 1 and is inserted into the rocker arm 207.

[0048] The transmission gear 203 and the transmission worm 205 adopt a worm gear transmission structure. The user can rotate the transmission gear 203 by rotating the transmission worm 205, thereby directly controlling the forward and reverse rotation of the control gear 204. The power transmission between the transmission gear 203 and the transmission worm 205 is unidirectional. When the transmission gear 203 reverses, it will form a self-locking state, thereby improving the control accuracy of the control gear 204 in controlling the movement of the rack 303 and preventing the rack 303 from moving in the opposite direction during the compression and fixing of the steel pipe.

[0049] The clamping and translation mechanism 3 includes a horizontal slider 301 that is slidably connected to the top of the support frame 1, and three horizontal sliders 301 are provided in the horizontal direction;

[0050] Each of the three horizontal sliders 301 has a matching slot 302 between each other, and the three horizontal sliders 301 correspond one-to-one with the three steel pipe positioning clamps 6.

[0051] The bottom of the horizontal slider 301 is fixedly connected to a rack 303 that meshes with one side of the control gear 204, and the racks 303 are symmetrically distributed about the central axis of the control gear 204.

[0052] Three horizontal sliders 301 are equidistantly distributed in the horizontal direction. The edges of two adjacent horizontal sliders 301 are fitted together by a groove and a slider. The edges of the two outer horizontal sliders 301 are slidably connected to the support frame 1 in the same way. Only two horizontal sliders 301 have racks 303 at their bottom ends. The racks 303 are horizontally translated under the action of the control gear 204, which causes the horizontal sliders 301 to drive the steel pipe positioning clamps 6 to move horizontally. The different spacing between the steel pipe positioning clamps 6 is used to clamp steel pipes of different diameters.

[0053] The support frame 1 includes an operating table 101. The bottom end of the operating table 101 is fixedly connected to a transmission box housing 102. The bottom end of the transmission box housing 102 is fixedly connected to four support legs 103. The four support legs 103 are connected to each other through connecting rods 104. The bottom end of the support legs 103 is inserted into the interior of the pressure-bearing foot 105.

[0054] In summary, the fixing mechanism and its usage method applicable to stainless steel pipe processing are as follows: First, the user can place the steel pipe to be processed between the steel pipe positioning clamps 6 using a crane or transport method, with the orientation of the steel pipe perpendicular to the opening orientation of the steel pipe positioning clamps 6. Second, the user rotates the rocker arm 207 clockwise to rotate the control shaft 206 and the transmission worm gear 205. The transmission worm gear 205 meshes with the transmission gear 203, and the transmission worm gear 205 drives the transmission gear 203 and the control gear 204 to rotate around the support shaft 202. Third, through the meshing between the control gear 204 and the rack 303, the horizontal slider 301 slides horizontally towards each other until the inner walls of the three intersecting steel pipe positioning clamps 6 are in contact with the outer surface of the steel pipe. After the steel pipe is fixed, the user can perform processing operations on the end of the steel pipe.

[0055] After the steel pipe processing operation is completed, the user can rotate the rocker arm 207 counterclockwise until the distance between the steel pipe positioning clamps 6 is greater than the outer diameter of the steel pipe.

[0056] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A fixing mechanism suitable for stainless steel pipe fitting machining, comprising a support frame (1), characterized in that: The support frame (1) is provided with a transmission control mechanism (2) inside. The top of the transmission control mechanism (2) is engaged with a clamping and translation mechanism (3) that is slidably connected to the top of the support frame (1). The top of the clamping and translation mechanism (3) is fixedly connected to the bottom of the support panel (4). The transmission control mechanism (2) includes a positioning bearing (201) that fits into the bottom end of the support frame (1). The positioning bearing (201) is inserted between its interior and the bottom end of the support shaft (202), and the support shaft (202) passes through the interior of the transmission gear (203) and the control gear (204) from bottom to top. One side of the transmission gear (203) is meshed with a transmission worm (205), and a control shaft (206) passes through the inside of the transmission worm (205). One end of the control shaft (206) is movably connected to the inner wall of the support frame (1), and the other end of the control shaft (206) passes through the support frame (1) and is inserted into the inside of the rocker arm (207). The support panel (4) is fixedly connected to a support angle iron (5) on the side away from the center line of the support frame (1), and a steel pipe positioning clamp (6) is fixedly connected to the top of the support panel (4). The clamping and translation mechanism (3) includes a horizontal slider (301) that is slidably connected to the top of the support frame (1), and three horizontal sliders (301) are provided in the horizontal direction; Each of the three horizontal sliders (301) is provided with a matching slot (302) between each other, and a rack (303) that meshes with one side of the control gear (204) is fixedly connected to the bottom of the horizontal slider (301). The three horizontal sliders (301) correspond one-to-one with the three steel pipe positioning clamps (6); The racks (303) are symmetrically distributed about the central axis of the control gear (204).

2. The fixing mechanism for machining of stainless steel pipe according to claim 1, characterized in that: There are three steel pipe positioning clamps (6), and all three steel pipe positioning clamps (6) are bent structures, and the steel pipe positioning clamps (6) are staggered with each other.

3. The fixing mechanism for machining of stainless steel pipe according to claim 1, characterized in that: The central axes of the support shaft (202), transmission gear (203), and control gear (204) are aligned.

4. The fixing mechanism for machining of stainless steel pipe according to claim 1, characterized in that: The transmission gear (203) and the transmission worm (205) are at the same horizontal height, and the transmission worm (205) forms a rotating structure through the control shaft (206).

5. The fixture of claim 1, wherein: The support frame (1) includes an operating table (101), the bottom end of which is fixedly connected to a transmission box housing (102), and the bottom end of the transmission box housing (102) is fixedly connected to four support legs (103). The four support legs (103) are connected to each other through connecting rods (104), and the bottom end of the support legs (103) is inserted into the inside of the pressure-bearing foot (105).

6. A method of using the fixture for machining stainless steel pipe according to any one of claims 1 to 5, wherein The specific steps are as follows: S1. Users can place the steel pipe to be processed between the steel pipe positioning clamps (6) by means of a crane or transportation, and the orientation of the steel pipe is perpendicular to the opening orientation of the steel pipe positioning clamps (6). S2. The user rotates the control shaft (206) and the transmission worm gear (205) by rotating the rocker arm (207) clockwise; S3. The transmission worm (205) meshes with the transmission gear (203) to drive the transmission gear (203) and the control gear (204) to rotate around the support shaft (202) as the center. S4. By controlling the meshing between the gear (204) and the rack (303), the horizontal slider (301) is made to slide horizontally towards each other until the inner walls of the three intersecting steel pipe positioning clamps (6) are in contact with the outer surface of the steel pipe. S5. After the steel pipe is fixed, the user performs processing operations on the ends of the steel pipe. S6. After the steel pipe processing operation is completed, the user can rotate the rocker arm (207) counterclockwise and repeat the steps S2-S4 above. S7. Until the distance between the steel pipe positioning clamps (6) is greater than the outer diameter of the steel pipe.

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