A precision steel pipe beveling device

Abstract

This utility model relates to the field of stainless steel pipe processing and discloses a precision steel pipe curling device. It includes a base, a clamping assembly mounted on the base, and a curling mold. The clamping assembly is slidably connected to the base to clamp, position, or release the steel pipe. The curling mold is located above the clamping assembly and is spaced apart from it. A stamping drive is connected to the base and is connected to the curling mold to drive the mold to rise and fall, processing the inner edge of the steel pipe. A linkage rod is connected to the curling mold. When the curling mold descends, the linkage rod moves synchronously with the mold and applies a thrust to the clamping assembly after contacting it, driving the clamping assembly to move and clamp the steel pipe. This utility model uses a linkage rod instead of a cylinder, reducing the production cost of the curling device; it improves the error tolerance when placing the steel pipe, facilitating proper placement; and it improves the accuracy of processing the inner edge.

Description

Technical Field

[0001] This utility model relates to the field of stainless steel flue processing technology, and more specifically, to a precision steel pipe rolling device. Background Technology

[0002] Stainless steel flue pipes are mainly made of stainless steel plates with a thickness of about 0.8mm-1mm. During the processing, a precision rounding device is used to round the pipe, so that the inner and outer diameters of the entire stainless steel flue pipe have high precision. Therefore, it is called a precision stainless steel flue pipe.

[0003] When laying flue pipes, a stainless steel flue pipe valve is installed at the point where the flue pipe is exposed outside the building (i.e., one section is inserted into another) to prevent backflow of flue gas due to wind. The flue pipe valve is also made of a section of precision stainless steel flue pipe, but a one-way valve is installed inside the steel pipe. Typically, the stainless steel pipe in the flue pipe valve is about 20cm long. Since the stainless steel pipe in the flue pipe valve is connected to the corresponding flue pipe section through a socket, the stainless steel pipe used to make the flue pipe valve needs to have its end stamped with an inwardly bent and rolled edge using a rolling device and a stamping die. This facilitates insertion with another section of stainless steel flue pipe and eliminates sharp edges, improving safety. Furthermore, the inwardly rolled edge at the pipe opening acts like a reinforcing rib, increasing the rigidity and deformation resistance at the end.

[0004] Existing end-rolling devices, when processing the inner edge of stainless steel flue pipes, first require two cylinders to push two clamps closer together to hold the stainless steel flue pipe. Then, a stamping die moves and stamps the inner edge onto the end of the flue pipe. After processing, the stamping die moves away from the flue pipe, and the two cylinders drive the two clamps to move away from the flue pipe, releasing them. This process, besides requiring a driving source for the stamping die, necessitates two additional cylinders to move the clamps to hold or release the stainless steel flue pipe, resulting in a high cost for the end-rolling device. Utility Model Content

[0005] To address at least one of the aforementioned problems, this utility model provides a precision steel pipe curling device, comprising a base, a clamping assembly mounted on the base, and a curling mold. The clamping assembly is slidably connected to the base to clamp, position, or release the steel pipe. The curling mold is located above the clamping assembly and is spaced apart from it. A stamping drive is connected to the base, and the stamping drive is connected to the curling mold to drive the curling mold to rise and fall, processing an inner edge on the steel pipe. A linkage rod suitable for contacting the clamping assembly is connected to the curling mold. When the curling mold descends, the linkage rod moves synchronously with the curling mold and applies a thrust to the clamping assembly after contacting it, driving the clamping assembly to move and clamp and position the steel pipe.

[0006] Optionally, a driving inclined surface is provided on one side of the bottom of the linkage rod, and a mating inclined surface is provided on the clamping assembly. When the linkage rod descends, the driving inclined surface contacts the mating inclined surface to push the clamping assembly to move.

[0007] Optionally, the clamping assembly includes two symmetrically arranged clamping blocks, both of which are slidably connected to the base. Two linkage rods are provided, each of which cooperates with one of the two clamping blocks to drive the two clamping blocks closer to each other and clamp and position the steel pipe.

[0008] Optionally, two directional rails are spaced apart on the base, and the two clamping blocks are located between the two directional rails and abut against the sides of the two directional rails that are close to each other.

[0009] Optionally, each of the two clamping blocks is provided with an elastic reset member on the side away from each other. When the linkage rod is not in contact with the clamping block, the two clamping blocks move away from each other under the action of the corresponding elastic reset member.

[0010] Optionally, the rolling die includes a rolling die head and a template, the template being detachably connected to the stamping drive component, the rolling die head being detachably connected to the template, and the linkage rod being connected to the template and moving synchronously.

[0011] Optionally, the bottom of the template has a slot, one end of the rolling die head is inserted into the slot, and the two opposite outer walls of the template have first bolt holes, both of which are connected to the slot. A fixing bolt is inserted into and threadedly connected to the two first bolt holes, and the fixing bolt is threadedly connected to the rolling die head.

[0012] Optionally, a guide optical axis is fixedly provided on the base, and a mating hole is provided on the top of the template. The mating hole penetrates the template, and the guide optical axis is inserted into the mating hole to enable the template to move in a directional and stable manner.

[0013] Optionally, the bottom of the rolling die head is provided with a rolling forming cavity, and the opening of the rolling forming cavity is provided with a guide slope so that the steel pipe can be smoothly inserted into the rolling forming cavity.

[0014] Optionally, when the guide ramp contacts the top of the steel pipe, the two clamping blocks do not clamp or limit the steel pipe, and the steel pipe can move under the action of the guide ramp to be aligned with the curling cavity.

[0015] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0016] 1. When the stamping drive component drives the rolling die to descend and stamp the steel pipe to form an inner rolled edge, the linkage rod will also descend synchronously and make the driving inclined surface and the mating inclined surface contact and engage to apply a pushing force to the clamping block, drive the clamping block to move, and clamp the steel pipe. The linkage rod replaces the function of the cylinder, and the linkage rod is only a rod body, thus reducing the production cost of the rolling device.

[0017] 2. When the linkage rod does not contact the clamping block, the two clamping blocks move away from each other under the action of their respective elastic reset components, so that the distance between the two clamping blocks is greater than the diameter of the steel pipe, which improves the fault tolerance rate when placing the steel pipe and helps with the placement of the steel pipe.

[0018] 3. During the descent of the rolling die, the two clamping blocks, under the action of the linkage rod, will first push the steel pipe to the area below the opening of the rolling forming cavity, but will not fully clamp the steel pipe, leaving room for the steel pipe to move. Since the position of the steel pipe is different each time, the guide slope on the rolling die head will first contact the top of the steel pipe, so that the position of the steel pipe is slightly adjusted and corrected to align the top of the steel pipe with the rolling forming cavity. Then the two clamping blocks will fully clamp the steel pipe to ensure that the steel pipe will not shift, thus improving the accuracy of the inner edge rolling.

[0019] 4. The template is designed to increase the area of ​​the rolling die head, providing sufficient space to cooperate with the guide shaft and improving the stability of the rolling die head during lifting and lowering. The rolling die head and the template are detachably connected, allowing the rolling die head to be replaced or different rolling dies to meet different processing requirements of the steel pipe ends. This improves the convenience of maintenance or replacement. Furthermore, by changing different rolling dies, the device can perform inward flanging, outward flanging, flaring, and shrinking of the steel pipe, making it widely applicable. Attached Figure Description

[0020] Figure 1This is a structural diagram of the seam rolling device in an embodiment of this utility model;

[0021] Figure 2 This is an exploded view of the substrate, guide optical axis, clamping assembly and crimping mold in the embodiment of this utility model;

[0022] Figure 3 This is an exploded view of the stamping drive and the rolling die in the embodiment of this utility model;

[0023] Figure 4 This is an exploded view of the rolling die in an embodiment of this utility model;

[0024] Figure 5 This is a structural diagram of the clamping component in an embodiment of the present utility model;

[0025] Figure 6 This is an exploded view of the clamping component in an embodiment of this utility model;

[0026] Figure 7 This is a structural diagram of the support frame, the first position sensor, and the second position sensor in an embodiment of this utility model.

[0027] Explanation of reference numerals in the attached drawings: 1. Base; 11. Support frame; 12. Stamping drive component; 13. Connecting plate; 14. Extension plate; 15. First position sensor; 16. Second position sensor; 17. Screw; 18. Base plate; 181. Guide optical axis; 19. Orientation track; 2. Clamping assembly; 21. Clamping block; 22. Mating inclined surface; 23. Fixing plate; 24. Elastic reset component; 25. Sliding bolt; 3. Rolling die; 31. Rolling die head; 311. Rolling forming cavity; 312. Guide inclined surface; 32. Template; 4. Linkage rod; 41. Drive inclined surface. Detailed Implementation

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the following description is provided in conjunction with the appendix. Figure 1-7 This application will be described in further detail.

[0029] The accompanying drawings of this utility model embodiment provide a coordinate system XYZ, where the positive direction of the X-axis represents the right, the negative direction of the X-axis represents the left, the positive direction of the Y-axis represents the front, the negative direction of the Y-axis represents the back, the positive direction of the Z-axis represents the top, and the negative direction of the Z-axis represents the bottom.

[0030] This utility model embodiment provides a precision steel pipe curling device, referring to... Figure 1 and Figure 2The precision steel pipe beveling device includes a base 1, a clamping assembly 2 mounted on the base 1, and a beveling mold 3. The clamping assembly 2 is slidably connected to the base 1 to clamp, position, or release the steel pipe. The beveling mold 3 is located above the clamping assembly 2 and is spaced apart from it. A stamping drive 12 is connected to the base 1, and the stamping drive 12 is connected to the beveling mold 3 to drive the beveling mold 3 to rise and fall, processing the inner edge of the steel pipe. A linkage rod 4 is connected to the beveling mold 3, suitable for contacting the clamping assembly 2. When the beveling mold 3 descends, the linkage rod 4 moves synchronously with the beveling mold 3, and after contacting the clamping assembly 2, it applies a thrust to the clamping assembly 2, driving the clamping assembly 2 to move and clamp and position the steel pipe.

[0031] Reference Figure 1 and Figure 2 A support frame 11 is welded and installed on the base 1. The support frame 11 includes two vertical plates and a top plate. The two vertical plates are spaced apart on the top of the base 1 and are welded to the base 1. The top plate is located on top of the two vertical plates and is welded to them. The stamping drive component 12 can be a hydraulic cylinder, a pneumatic cylinder, or a lead screw motor. In this embodiment, the stamping drive component 12 is preferably a hydraulic cylinder, which can provide sufficient stamping force to the rolling die 3, driving the end of the steel pipe to flip inward to form an inward rolled edge. The cylinder body of the hydraulic cylinder is fixed to the top of the top plate of the support frame 11 by bolts. The telescopic rod of the hydraulic cylinder passes through the top plate of the support frame 11 and is located below the top plate of the support frame 11. A connecting plate 13 is fixedly connected to the telescopic rod of the hydraulic cylinder by bolts. Specifically, the end of the telescopic rod of the hydraulic cylinder has an opening slot. A connecting block is welded to the top of the connecting plate 13. The connecting block is inserted into the opening slot and then connected to the telescopic rod of the hydraulic cylinder by bolts.

[0032] Reference Figures 1 to 4The rolling die 3 is located below the connecting plate 13 and between the two vertical plates in the support frame 11. The rolling die 3 is fixedly connected to the connecting plate 13 by bolts. The rolling die 3 includes a rolling die head 31 and a template 32. Both the template 32 and the connecting plate 13 are rectangular plates. The template 32 is located at the bottom of the connecting plate 13 and fits against the connecting plate 13. The template 32 is detachably connected to the connecting plate 13 by bolts. A slot is provided at the bottom of the template 32. The top of the rolling die head 31 is inserted into the slot, and the bottom protrudes from the slot and is located below the template 32. First bolt holes are provided on both the front and rear outer walls of the template 32, and both first bolt holes communicate with the slot. Two second bolt holes are provided on both the front and rear outer walls of the rolling die head 31, and the two second bolt holes communicate with the two first bolt holes respectively. Fixing bolts are inserted into and threadedly connected to the two first bolt holes. The fixing bolts are inserted into the second bolt holes and threadedly connected to the die head, thereby making the template 32 and the rolling die head 31 detachably connected. This allows the beading die 31 to be replaced, or different beading dies 31 to be replaced, in order to meet different processing requirements for the ends of the steel pipe, thus improving the convenience of maintenance or replacement.

[0033] The bottom of the rolling die 31 is provided with a rolling forming cavity 311. The rolling forming cavity 311 is an annular groove with a large arc. The opening of the rolling forming cavity 311 extends downward and inclined towards the outer wall of the rolling die 31. Thus, when the end of the steel pipe is inserted into the rolling forming cavity 311, it will be squeezed and bent into the inside of the steel pipe under the action of the stamping drive 12 to form an inner rolled edge.

[0034] The outer edge of the roll forming cavity 311 is provided with a guide slope 312. The guide slope 312 gradually slopes towards the outer wall of the roll die 31 in a vertically downward direction, so that the steel pipe can be smoothly inserted into the roll forming cavity 311.

[0035] Reference Figures 5 to 7 An extension plate 14 is welded and fixed to the rear side of the top plate of the support frame 11, and the extension plate 14 extends downward. An elongated hole is provided on the extension plate 14, extending vertically. A first position sensor 15 and a second position sensor 16 are provided on the extension plate 14, spaced vertically. The first position sensor 15 is located above the second position sensor 16. Both the first position sensor 15 and the second position sensor 16 are installed at the elongated hole with bolts and nuts, and can be adjusted by moving within the elongated hole. A screw 17 is threaded to the rear of the hydraulic cylinder telescopic rod. An adjustment elongated hole is provided on the extension plate 14, extending vertically. One end of the screw 17 is inserted into the adjustment elongated hole and can move up and down within the adjustment elongated hole to cooperate with the first position sensor 15 and the second position sensor 16.

[0036] Reference Figures 4 to 7A foot switch (existing technology, not shown in the figure) is placed on the ground in front of the base 1. When the foot switch is pressed, the control system controls the stamping drive component 12 to drive the connecting plate 13 to lower the template 32 and the rolling die 31. The screw 17 will also descend synchronously. When the screw 17 descends to the position of the second position sensor 16, the rolling die 31 stamps the inner edge of the steel pipe, and the control system controls the stamping drive component 12 to stop the descent of the template 32 and the rolling die 31. Then, the control system controls the stamping drive component 12 to drive the template 32 and the rolling die 31 to rise until the screw 17 moves to the position of the first position sensor 15 and stops rising. By adjusting the first position sensor 15 and the second position sensor 16, the control system can control the distance and position of the rolling die 3 as it rises and falls.

[0037] Two linkage rods 4 are symmetrically arranged in the left-right direction. The two linkage rods 4 are fixedly connected to the template 32 by bolts to achieve synchronous lifting. Two insertion slots are opened at the bottom of the template 32, located on the left and right sides of the slot respectively. The tops of the two linkage rods 4 are inserted into the two insertion slots respectively. Third threaded holes are opened on the left and right sides of the template 32, communicating with the corresponding insertion slots. Bolts are inserted into the third threaded holes and threadedly connected to the template 32, and also inserted into the corresponding linkage rods 4 and threadedly connected to them, thus fixing the linkage rods 4 to the template 32.

[0038] Reference Figures 2 to 6 A base plate 18 is bolted to the top of the base 1, and a clamping assembly 2 is slidably mounted on the base plate 18. The clamping assembly 2 includes two clamping blocks 21 arranged symmetrically on the left and right sides. Two linkage rods 4 respectively cooperate with the two clamping blocks 21 to drive the two clamping blocks 21 closer together to clamp and position the steel pipe. Since the steel pipe is circular, a semi-circular groove that mates with the steel pipe is opened on the side of the two clamping blocks 21 that are close to each other, thereby increasing the contact area between the clamping blocks 21 and the steel pipe, making it more compatible with the steel pipe, more stable after clamping the steel pipe, and less likely to cause deformation of the steel pipe after clamping.

[0039] Both linkage rods 4 have driving inclined surfaces 41 on their bottom sides, which are close to each other. These driving inclined surfaces 41 gradually slope towards the other linkage rod 4 as it rises. Both clamping blocks 21 have mating inclined surfaces 22 on their top sides, which are far apart from each other. These mating inclined surfaces 22 gradually slope towards the other clamping block 21 as it descends, allowing them to engage with the driving inclined surfaces 41. When the linkage rods 4 descend, the driving inclined surfaces 41 contact the mating inclined surfaces 22, pushing the two clamping blocks 21 closer together.

[0040] Reference Figures 2 to 6Two directional rails 19 are bolted to the top of the substrate 18. The two directional rails 19 are spaced apart in the front-to-back direction, and their length direction is the sliding direction of the two clamping blocks 21. The two clamping blocks 21 are located between the two directional rails 19, and their front and rear sides abut against the two directional rails 19. A sliding groove is formed on the side of the two directional rails 19 that is close to each other, and the sliding groove extends through the directional rail 19 along the sliding direction of the clamping block 21. A sliding strip is integrally formed on the side of the clamping block 21 that is close to the two directional rails 19. The sliding strip is inserted into the sliding groove and slides within the sliding groove, so that the clamping block 21 cannot be pulled out from between the two directional rails 19 in the vertical direction, thereby enabling the two clamping blocks 21 to move stably in the direction of orientation.

[0041] A fixing plate 23 and an elastic reset member 24 are fixedly installed on the side of the two clamping blocks 21 that are far apart from each other. The following description takes the connection structure of a fixing plate 23 and an elastic reset member 24 as an example.

[0042] Reference Figures 2 to 6 The fixing plate 23 is welded to the base plate 18. A sliding hole is provided on the side of the fixing plate 23 near the clamping block 21, and the sliding hole penetrates the fixing plate 23. A sliding bolt 25 is inserted into and slides within the sliding hole, and the inner diameter of the sliding hole is larger than the outer diameter of the sliding bolt 25. A nut is welded to the side of the clamping block 21 near the corresponding fixing plate 23. The threaded end of the sliding bolt 25 is threadedly connected to the nut on the clamping block 21 to achieve synchronous movement. The nut of the sliding bolt 25 is located on the side of the fixing plate 23 away from the clamping block 21 and is cantilevered. The elastic reset member 24 is a rubber column located on the side of the fixing plate 23 away from the clamping block 21 and is sleeved on the sliding bolt 25. One end of the elastic reset member 24 abuts against the fixing plate 23, and the other end abuts against the nut of the sliding bolt 25. In another embodiment, the elastic reset member 24 can also be a spring. Thus, when the two clamping blocks 21 approach each other, the sliding bolt 25 also moves synchronously, and the elastic reset member 24 is clamped and compressed by the fixing plate 23 and the nut of the sliding bolt 25, causing deformation. When the linkage rod 4 is not in contact with the clamping block 21, the elastic reset member 24 will exert a force away from the fixing plate 23 on the nut of the sliding bolt 25 under its own elastic force, thereby driving the clamping block 21 to approach the fixing plate 23, so that the two clamping blocks 21 move away from each other.

[0043] When the guide ramp 312 contacts the top of the steel pipe, the two clamping blocks 21 do not clamp or limit the steel pipe, allowing it to move under the action of the guide ramp 312 to align with the curling cavity 311. Specifically, during the descent of the linkage rod 4, the two clamping blocks 21, under the action of the linkage rod 4, first push the steel pipe to the area below the opening of the curling cavity 311, but do not fully clamp it, leaving room for movement. Because the position of the steel pipe varies each time, the guide ramp 312 on the curling die 31 first contacts the top of the steel pipe, slightly adjusting and correcting its position to align the top of the steel pipe with the curling cavity 311. Then, the two clamping blocks 21 fully clamp the steel pipe, ensuring it does not shift and improving the accuracy of the inner curling process.

[0044] In this embodiment, the substrate 18 is preferably a rectangular plate. Countersunk holes are provided at the four right angles of the bottom of the substrate 18. The smaller holes of the countersunk holes penetrate the substrate 18, and bolts are installed inside the countersunk holes. The bolt nuts do not protrude from the larger holes of the countersunk holes, making the bottom of the substrate 18 relatively flat. Guide optical axes 181 are provided at the four right angles of the top of the substrate 18, and the guide optical axes 181 are threadedly connected to the bolts inside the countersunk holes.

[0045] The four right angles of the connecting plate 13 and the template 32 are all provided with mating holes, which are through holes. Flange bushings are inserted into the four through holes of the template 32. The flange bushings are fixedly connected to the template 32 by bolts. The four guide shafts 181 are respectively inserted into the four flange bushings. When the template 32 is raised to its highest position, the guide shafts 181 are still inserted into the flange bushings, which makes the template 32 more stable when it is raised and lowered, and improves the accuracy of the inner edge rolling when processing steel pipes.

[0046] The implementation principle of the precision steel pipe curling device in this application embodiment is as follows: When the stamping drive component 12 drives the curling die 3 to descend and stamp out the inner curl on the steel pipe, the linkage rod 4 also descends synchronously, and the driving inclined surface 41 and the mating inclined surface 22 come into contact and engage, so as to apply a pushing force to the clamping block 21, drive the clamping block 21 to move, and clamp the steel pipe. When the linkage rod 4 is not in contact with the clamping block 21, the two clamping blocks 21 move away from each other under the action of their respective elastic reset components 24, so that the distance between the two clamping blocks 21 is greater than the diameter of the steel pipe, which improves the fault tolerance rate when placing the steel pipe and facilitates the placement of the steel pipe. During the descent of the curling die 3, the two clamping blocks 21, under the action of the linkage rod 4, will first push the steel pipe to the area below the opening of the curling forming cavity 311, but will not completely clamp the steel pipe, leaving room for the steel pipe to move. Since the position of the steel pipe is different each time, the guide slope 312 on the curling die head 31 will first contact the top of the steel pipe, so that the position of the steel pipe is slightly adjusted and corrected, so that the top of the steel pipe is aligned with the curling forming cavity 311. Then the two clamping blocks 21 will completely clamp the steel pipe to ensure that the steel pipe will not shift, thus improving the accuracy of the inner curling process.

[0047] Similarly, the components included in the "components," "mechanisms," and "devices" of this disclosure can also be flexibly combined. They can be modularly produced according to actual needs and assembled as an independent module; or they can be assembled separately to form a module in this device. The division of the above-mentioned components in this disclosure is only one embodiment for ease of reading and is not intended to limit the scope of protection of this disclosure. Any technical solution that includes the above-mentioned components and has the same function should be understood as an equivalent technical solution of this disclosure.

[0048] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure 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. Therefore, they should not be construed as limitations on this disclosure.

[0049] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0050] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0051] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0052] It should be noted that when a component is referred to as "fixed to," "set on," "fixed to," or "mounted on" another component, it can be directly on the other component or there may be an intervening component. When a component is considered to be "connected to another component," it can be directly connected to the other component or there may be an intervening component. Furthermore, when a component is considered to be "fixedly connected" to another component, the connection can be detachable or non-detachable, such as through socketing, snap-fitting, integral molding, welding, etc., which are achievable in conventional technologies and will not be elaborated upon here.

[0053] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The above embodiments are merely illustrative of several implementation methods of this disclosure, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of this disclosure, and these modifications and improvements all fall within the protection scope of this disclosure.

Claims

1. A precision steel tube beading apparatus characterized by: The device includes a base (1), a clamping assembly (2) mounted on the base (1), and a beveling mold (3). The clamping assembly (2) is slidably connected to the base (1) to clamp, position, or release the steel pipe. The beveling mold (3) is located above the clamping assembly (2) and is spaced apart from the clamping assembly (2). A stamping drive (12) is connected to the base (1) and is connected to the beveling mold (3) to drive the beveling mold (3) to rise and fall, and to process the inner beveling of the steel pipe. A linkage rod (4) is connected to the beveling mold (3) to contact the clamping assembly (2). When the beveling mold (3) descends, the linkage rod (4) moves synchronously with the beveling mold (3) and applies a thrust to the clamping assembly (2) after contacting it, thereby driving the clamping assembly (2) to move and clamp and position the steel pipe.

2. The precision steel pipe beveling device according to claim 1, characterized in that: A driving inclined surface (41) is provided on one side of the bottom of the linkage rod (4), and a mating inclined surface (22) is provided on the clamping assembly (2). When the linkage rod (4) descends, the driving inclined surface (41) contacts the mating inclined surface (22) to push the clamping assembly (2) to move.

3. The precision steel pipe beveling device according to claim 1, characterized in that: The clamping assembly (2) includes two symmetrically arranged clamping blocks (21), both of which are slidably connected to the base (1). There are two linkage rods (4), which cooperate with the two clamping blocks (21) respectively to drive the two clamping blocks (21) to move closer to each other and clamp and position the steel pipe.

4. The precision steel pipe beveling device according to claim 3, characterized in that: The base (1) is provided with two directional rails (19) spaced apart. The two clamping blocks (21) are located between the two directional rails (19) and abut against the side of the two directional rails (19) that are close to each other.

5. The precision steel pipe beveling device according to claim 3, characterized in that: Both clamping blocks (21) are provided with elastic reset members (24) on the side that is far apart from each other. When the linkage rod (4) is not in contact with the clamping block (21), the two clamping blocks (21) move away from each other under the action of the corresponding elastic reset members (24).

6. The precision steel pipe beveling device according to any one of claims 1-5, characterized in that: The rolling die (3) includes a rolling die head (31) and a template (32). The template (32) is detachably connected to the stamping drive (12). The rolling die head (31) is detachably connected to the template (32). The linkage rod (4) is connected to the template (32) and moves synchronously.

7. The precision steel pipe beveling device according to claim 6, characterized in that: The template (32) has a slot at the bottom, and one end of the rolling die (31) is inserted into the slot. The two outer walls of the template (32) are provided with first bolt holes. The two first bolt holes are connected to the slot. Fixing bolts are inserted into the two first bolt holes and threadedly connected to them. The fixing bolts are threadedly connected to the rolling die (31).

8. The precision steel pipe beveling device according to claim 6, characterized in that: A guide optical axis (181) is fixedly provided on the base (1). A mating hole is provided on the top of the template (32). The mating hole penetrates the template (32). The guide optical axis (181) is inserted into the mating hole so that the template (32) can move in a directional and stable manner.

9. The precision steel pipe beveling device according to claim 6, characterized in that: The bottom of the rolling die (31) is provided with a rolling forming cavity (311), and the opening of the rolling forming cavity (311) is provided with a guide slope (312) so that the steel pipe can be smoothly inserted into the rolling forming cavity (311).

10. The precision steel pipe beveling device according to claim 9, characterized in that: When the guide slope (312) contacts the top of the steel pipe, the two clamping blocks (21) do not clamp or limit the steel pipe, and the steel pipe can move under the action of the guide slope (312) to be aligned with the roll forming cavity (311).

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