Tube expander and automatic selection device for its expander rod

Abstract

The application belongs to the technical field of pipe expanding equipment, and provides an automatic expanding rod selection device of a pipe expander, which comprises a mounting beam for mounting expanding rods, a plurality of mounting rows arranged in layers are arranged on the mounting beam, each mounting row is provided with a mounting row hole for inserting a plurality of expanding rods, and the mounting row hole comprises a plurality of horizontally arranged mounting holes; a driver and a shielding piece for shielding the mounting holes are further arranged on the mounting beam, the driver is connected with the shielding piece and can drive the shielding piece to displace to the corresponding mounting row to shield the corresponding mounting hole. The application can shield the mounting row hole on the mounting row by driving the shielding piece to press down. The pressing-down distance and the size of the shielding piece are different, the shielded mounting row hole is also different, the actual production demand can be adjusted, and after shielding is completed, the expanding rod only needs to be manually mounted into the mounting row hole that is not shielded, so that the operation is simple and convenient and error installation can be avoided.

Description

Technical Field

[0001] This application belongs to the technical field of tube expansion equipment, specifically referring to a tube expander and its automatic expansion rod selection device. Background Technology

[0002] Tube expanders are specialized expansion and connection equipment mainly used in the manufacturing of equipment such as heat exchangers, condensers, and high-pressure heaters for the expansion and tightening of tubes and tube sheets. Most existing tube expanders are vertical. Due to the limitation of factory height, vertical tube expanders generally cannot be too tall, which limits the length of the workpiece to be processed. Moreover, it is not easy to load large workpieces. Compared with vertical tube expanders, tube expanders have less demanding requirements on the factory, can process longer and larger workpieces, and are more convenient to load.

[0003] In existing tube expanders, when expanding workpiece pipes, it is often necessary to install an expansion rod corresponding to the position of the workpiece pipe so that the expansion rod can expand the workpiece pipe. Common tube expanders generally have mounting holes for installing expansion rods, and the height of each row of mounting holes is different. Existing technology generally uses manual operation for installation, which leads to difficulties in manual installation, easy misalignment, cumbersome operation, and reduced production efficiency of the tube expander. Summary of the Invention

[0004] The purpose of this application is to provide a tube expander and its automatic expansion rod selection device to solve the technical problem in the prior art where manual installation of expansion rods is prone to misalignment, resulting in low production efficiency.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: An automatic expansion rod selection device for an expansion rod machine is provided, comprising an installation beam for mounting expansion rods, wherein the installation beam has multiple stacked mounting rows, each mounting row having mounting holes for inserting multiple expansion rods, the mounting holes including multiple horizontally arranged mounting holes; the installation beam also has a driver and a blocking member for blocking the mounting holes, the driver being connected to the blocking member and capable of driving the blocking member to move to the corresponding mounting row to block the corresponding mounting hole.

[0006] The beneficial effects of the automatic expansion rod selection device for the tube expander provided in this application are as follows: Compared with the prior art, the automatic expansion rod selection device for the tube expander of this application has a blocking component and a driver for driving the blocking component to move on the mounting beam. The driver is a cylinder. The blocking component corresponds to the position of the mounting row. The driver drives the blocking component to move, which can block the mounting holes on the mounting row. The number of mounting holes blocked varies depending on the displacement distance and size of the blocking component. It can be adjusted according to actual production needs. After blocking, the expansion rod can be manually installed into the unblocked mounting row hole to complete the installation of the expansion rod. The operation is simple and convenient, which can prevent installation misalignment and improve the installation accuracy and efficiency of the expansion rod.

[0007] The structure of the shielding component is improved. The shielding component is a baffle, which is generally a metal baffle. The driver drives the baffle to move to the corresponding mounting row to block the mounting holes on the mounting row. The driver drives the baffle to move, which can block the mounting holes on the mounting row. The structure is simple and can reduce production costs.

[0008] Furthermore, a limiting groove is provided on the mounting beam, and the plurality of mounting rows are all arranged in the limiting groove. The baffle is arranged in the limiting groove, and the driver drives the baffle to move within the limiting groove. The limiting groove can limit the displacement stroke of the baffle, making the movement of the baffle more reliable and improving the structural stability of the mounting beam.

[0009] Furthermore, the mounting beam has a through groove that communicates with the limiting groove, and the baffle has a slider that matches the position of the through groove. One end of the slider is connected to the baffle, and the other end of the slider is connected to the driving end of the driver. This can improve the smoothness of the baffle movement and facilitate the driver to drive the baffle to move.

[0010] Based on the above, the baffle is provided with through holes that match the corresponding mounting row positions. The driver can drive the baffle to move so that the through holes on the baffle are connected to the mounting holes on the mounting row. This allows the baffle to block the mounting holes on the corresponding mounting row, while ensuring that the mounting holes of the mounting row above the mounting row are not blocked by the baffle. This improves the adaptability of the overall structure of the automatic expansion rod selection device.

[0011] The structure of the shielding component is improved. The shielding component is a vertically arranged baffle. The driver drives the baffle to move to the corresponding mounting row to shield individual mounting holes on the mounting row. According to actual production needs, individual mounting holes can be shielded to achieve precise shielding and improve the installation accuracy of the expansion rod.

[0012] Furthermore, the mounting beam has a limiting groove and a through groove that matches the position of the stop bar. The through groove is connected to the limiting groove, and the stop bar passes through the through groove into the limiting groove. The mounting strip is arranged in the limiting groove, and the driver can drive the stop bar to move within the limiting groove, which facilitates the driver to move the stop bar to block the mounting hole, thereby improving the overall reliability of the expansion rod automatic selection device.

[0013] The structure of the automatic expansion rod selection device is improved. The automatic expansion rod selection device further includes a mounting plate corresponding to the position of the mounting beam, and the mounting plate is provided with locking holes corresponding to the positions of the mounting holes. The locking holes are used to lock the expansion rod. The end of the expansion rod is provided with a connecting block. The connecting block and the locking hole are locked together by threads, so that the expansion rod can be fixed to the automatic expansion rod selection device, thereby improving the overall structural stability of the automatic expansion rod selection device.

[0014] This application also provides a tube expander, including a fixing device for fixing a workpiece, a worktable for placing the workpiece, and a tube expander mechanism for expanding the workpiece tube. The tube expander mechanism includes a drive assembly and an automatic expansion rod selection device of the tube expander described above. The drive assembly can drive the mounting beam to move towards the fixing device. The fixing device, the worktable, and the tube expander mechanism are sequentially arranged on the support of the tube expander.

[0015] The structure of the drive assembly is improved. The drive assembly includes a guide rod connected to the mounting beam and a screw structure that drives the mounting beam to move on the guide rod. Under the drive of the screw structure, the mounting beam can move towards the fixing device, that is, drive the expansion rod to move towards the fixing device, so as to realize the expansion rod to expand the pipe of the workpiece. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the automatic expansion rod selection device for the tube expander provided in the embodiments of this application;

[0018] Figure 2 This is a schematic diagram of the tube expander provided in the embodiments of this application;

[0019] Figure 3 A front view of the automatic expansion rod selection device for the tube expander provided in an embodiment of this application;

[0020] Figure 4 An exploded structural diagram of the automatic expansion rod selection device for the tube expander provided in the embodiments of this application;

[0021] Figure 5 for Figure 3 A magnified view of a section at point A in the middle;

[0022] Figure 6 for Figure 4 A magnified view of a section at point B in the middle.

[0023] The following are the labeling elements in the figure:

[0024] 100 - Tube expansion mechanism;

[0025] 1-Install the crossbeam;

[0026] 11-Installation row;

[0027] 12-Installation holes;

[0028] 121 - Mounting hole;

[0029] 13-Shielding component;

[0030] 131-Slider;

[0031] 132-Baffle;

[0032] 133-Stop bar;

[0033] 14-Drive;

[0034] 15-Limiting groove;

[0035] 16-Through groove;

[0036] 17-Through hole;

[0037] 2-Mounting plate;

[0038] 21-Locking hole;

[0039] 3-Driver components;

[0040] 200-Workbench;

[0041] 300 - Fixture. Detailed Implementation

[0042] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0043] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0044] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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 application.

[0045] Furthermore, the terms "first" and "second" 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 as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0046] The tube expander provided in the embodiments of this application will now be described. Please refer to [link / reference]. Figure 2 The tube expander sequentially includes a fixing device 300 for fixing the workpiece, a worktable 200 for placing the workpiece, and a tube expander mechanism 100 for expanding the workpiece tube. It also includes an automatic expansion rod selection device for the tube expander, which includes an expansion rod crossbeam with mounting holes 12 for mounting the expansion rod. The tube expander mechanism 100 is equipped with a drive assembly 3 that drives the mounting crossbeam 1 to move toward the fixing device 300. The drive assembly 3 is generally a lead screw structure, which generally consists of a lead screw and a motor that drives the lead screw to move. The lead screw is an ideal structure that converts rotary motion into linear motion or linear motion into rotary motion. The lead screw moves smoothly and reliably. The tube expander mechanism 100 is equipped with a guide rod, and the expansion rod crossbeam is set on the guide rod. Driven by the lead screw structure, it can move toward the fixing device 300, that is, drive the expansion rod to move toward the fixing device 300, so as to realize the tube expander of the workpiece tube.

[0047] Please refer to the following: Figure 1 , Figure 3 and Figure 4The automatic expansion rod selection device of the tube expander includes an installation beam 1 for installing expansion rods. The installation beam 1 has multiple stacked installation rows 11. Each installation row 11 has installation row holes 12 for inserting multiple expansion rods. The installation row holes 12 include multiple horizontally arranged installation holes 121. The installation beam 1 also has a driver 14 and a blocking member 13 for blocking the installation holes 121. The driver 14 is connected to the blocking member 13 and can drive the blocking member 13 to move to the corresponding installation row 11 to block the corresponding installation hole 121.

[0048] Compared with the prior art, the automatic expansion rod selection device for the tube expander provided in this application has a blocking component 13 and a driver 14 that drives the blocking component 13 to move on the mounting beam 1. The driver 14 is a cylinder. The blocking component 13 corresponds to the position of the mounting row. The driver 14 drives the blocking component 13 to move, which can block the mounting holes 121 on the mounting row holes 12. The number of blocked mounting holes 121 varies depending on the displacement distance and size of the blocking component 13. It can be adjusted according to actual production needs. After blocking, the expansion rod can be manually inserted into the unblocked mounting row holes 12 to complete the installation of the expansion rod. The operation is simple and convenient, which can effectively prevent installation misalignment, improve the installation efficiency of the expansion rod, and thus improve the production efficiency of the tube expander.

[0049] In one embodiment of this application, please refer to the following: Figure 1 , Figure 5 and Figure 6 The shield 13 is a baffle 132, which is generally made of hard metal. It can effectively block the expansion rod from passing through, and hard metal has a long service life. The driver 14 drives the baffle 132 to move to the corresponding mounting row 11 to block the mounting hole 121 on the mounting row. The driver 14 drives the baffle 132 to move to block the mounting hole 121 on the mounting row 11 at the corresponding position, which can block the mounting hole 121 on the mounting row 11. The structure is simple, the operation is convenient, and the production cost can be reduced.

[0050] Please refer to the following for specific implementation details. Figure 1 , Figure 5 and Figure 6 A limiting groove 15 is provided on the mounting beam 1, and multiple mounting rows 11 are all set in the limiting groove 15. A baffle 132 is set in the limiting groove 15. The driver 14 drives the baffle 132 to move within the limiting groove 15. The limiting groove 15 can limit the displacement stroke of the baffle 132, so that the baffle 132 can block the mounting hole 121 at the corresponding position, making the movement of the baffle 132 more reliable and improving the structural stability of the mounting beam 1.

[0051] In addition, the mounting beam 1 is provided with a through groove 16 that communicates with the limiting groove 15. The baffle 132 is provided with a slider 131 that matches the position of the through groove 16. One end of the slider 131 is connected to the baffle 132, and the other end of the slider 131 is connected to the driving end of the driver 14. The baffle 132 is connected to the driving end of the driver 14 through the slider 131, and the slider 131 can slide in the through groove 16. Even if the driver 14 drives the baffle 132 to move, the smoothness of the movement of the baffle 132 can be improved.

[0052] Please refer to the following for specific implementation details. Figure 1 , Figure 5 and Figure 6 The baffle 132 is provided with through holes 17 that match the positions of the corresponding mounting rows 11. The driver 14 can drive the baffle 132 to move so that the through holes 17 on the baffle 132 are connected to the mounting holes 121 on the mounting rows. This allows the baffle 132 to block the mounting holes 121 on the corresponding mounting rows, while also ensuring that the mounting holes 121 of the mounting rows above the mounting rows are not blocked by the baffle 132. According to actual production needs, by setting through holes 17 at corresponding positions on the baffle 132, the installation position of the expansion rod can be freely selected, which can improve the applicability of the overall structure of the automatic expansion rod selection device.

[0053] In another embodiment of this application, please refer to [the relevant documentation]. Figure 3 , Figure 5 and Figure 6 The blocking element 13 is a vertically arranged baffle 133. The driver 14 drives the baffle 133 to move to the corresponding mounting row to block individual mounting holes 121 on the mounting row 11. According to actual production needs, the driver 14 drives the baffle 133 to block a single mounting hole 121, achieving precise blocking and improving the accuracy of the expansion tube selection by the expansion rod automatic selection device.

[0054] Please refer to the following for specific implementation details. Figure 3 , Figure 5 and Figure 6 A limiting groove 15 and a through groove 16 matching the position of the stop bar 133 are provided on the mounting beam 1. The through groove 16 is connected to the limiting groove 15. The stop bar 133 passes through the through groove 16 to the limiting groove 15. The mounting strip is set in the limiting groove 15. The driver 14 can drive the stop bar 133 to move within the limiting groove 15, so that the driver 14 can drive the stop bar 133 to move to block the mounting hole 121 at the corresponding position, thereby blocking a single mounting hole and improving the overall stability of the expansion rod automatic selection device.

[0055] In another embodiment of this application, please refer to [the relevant documentation]. Figure 3 , Figure 4 and Figure 5The shielding component 13 includes a baffle 132 and baffle strips 133 disposed on both sides of the baffle 132. The baffle 132 can block the mounting holes 121 in the middle of the mounting holes 12 in batches to limit the height of the expansion rod installation position. The baffle strips 133 on both sides can selectively block the mounting holes 121 at the left and right ends of the mounting holes 122 to limit the width of the expansion rod installation position. In addition, the user can make adaptive adjustments to the quantity, size and position relationship of the baffle 132 and the baffle strips 133 according to the actual production needs, that is, to improve the installation efficiency of the expansion rod.

[0056] For specific implementation details, please refer to [link / reference]. Figure 4 The expansion rod automatic selection device also includes a mounting plate 2 corresponding to the position of the mounting beam 1, and the mounting plate 2 is provided with locking holes 21 corresponding to the position of the mounting holes 12. The locking holes 21 are used to lock the expansion rod. The end of the expansion rod is provided with a connecting block. The connecting block and the locking hole are locked together by threads, so that the expansion rod can be fixed to the expansion rod automatic selection device.

[0057] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An automatic expansion rod selection device for a tube expander, characterized in that: The device includes a mounting beam for mounting expansion rods, the mounting beam having multiple stacked mounting rows, each mounting row having mounting holes for inserting multiple expansion rods, the mounting holes including multiple horizontally arranged mounting holes; the mounting beam also includes a driver and a blocking member for blocking the mounting holes, the driver being connected to the blocking member and capable of driving the blocking member to move onto the corresponding mounting row to block the corresponding mounting hole, the blocking member including a baffle and stop bars disposed on both sides of the baffle, the driver... The actuator drives the baffle to move onto the corresponding mounting row to block the mounting holes on the mounting row. The baffle has through holes that match the position of the corresponding mounting row. The actuator can drive the baffle to move so that the through holes on the baffle connect with the mounting holes on the mounting row. The baffle blocks the mounting holes on the corresponding mounting row, while ensuring that the mounting holes of the mounting rows above the baffle are not blocked by the baffle. The actuator drives the stop bar to move onto the corresponding mounting row to block individual mounting holes on the mounting row.

2. The automatic expansion rod selection device for the tube expander according to claim 1, characterized in that: The mounting beam has a limiting groove, the plurality of mounting rows are all arranged in the limiting groove, the baffle is arranged in the limiting groove, and the driver drives the baffle to move within the limiting groove.

3. The automatic expansion rod selection device for the tube expander according to claim 2, characterized in that: The mounting beam has a through groove that communicates with the limiting groove. The baffle has a slider that matches the position of the through groove. One end of the slider is connected to the baffle, and the other end of the slider is connected to the driving end of the driver.

4. The automatic expansion rod selection device for the tube expander according to claim 3, characterized in that: The mounting beam has a limiting groove and a through groove that matches the position of the stop bar. The through groove is connected to the limiting groove. The stop bar passes through the through groove into the limiting groove. The mounting strip is disposed in the limiting groove. The driver can drive the stop bar to move within the limiting groove.

5. The automatic expansion rod selection device for the tube expander according to claim 1, characterized in that: The automatic expansion rod selection device also includes a mounting plate corresponding to the position of the mounting beam, and the mounting plate is provided with locking holes corresponding to the position of the mounting holes, the locking holes being used to lock the expansion rod.

6. A tube expander, comprising a fixing device for fixing a workpiece, a worktable for placing the workpiece, and a tube expander mechanism for expanding the workpiece tube, characterized in that: The tube expansion mechanism includes a drive assembly and an automatic expansion rod selection device for the tube expander as described in any one of claims 1 to 5, wherein the drive assembly is capable of driving the mounting beam to move toward the fixing device.

7. The tube expander according to claim 6, characterized in that: The drive assembly includes a guide rod connected to the mounting beam and a lead screw structure that drives the mounting beam to move on the guide rod.

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