U-shaped support assembling mechanism and pipe expander

Abstract

The utility model discloses a U support assembling mechanism and discloses a pipe expander with the U support assembling mechanism, the U support assembling mechanism comprises a support, a second fixing assembly, a first fixing assembly, a lifting assembly and a supporting assembly, the second fixing assembly and the first fixing assembly are used for fixing a U support, the first fixing assembly is arranged on the support in a lifting mode, and the second fixing assembly is arranged on the support. The lifting assembly is arranged on the support and used for driving the first fixing assembly to ascend and descend, the supporting assembly is arranged on the support and comprises a supporting seat and a first driving part, and the supporting seat can move in the direction close to or away from the first fixing assembly so that the supporting seat can abut against the lower side of the first fixing assembly. The first driving part is used for driving the supporting base to move in the direction close to or away from the first fixing assembly, the lifting unit does not need to bear the load of the first fixing assembly, the service life of the lifting unit can be prolonged, the fault frequency of the U-support assembling mechanism can be reduced, and the use reliability of the U-support assembling mechanism can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchanger production and manufacturing, in particular to a U-support assembly mechanism and a tube expander. Background Art

[0002] In the production process of the heat exchanger, the metal tube and the fins mounted thereon need to be tightly combined together to ensure good heat transfer and heat conduction, and the weight is light and the service life is long. The method currently adopted by people is to use a tube expander to insert an expansion rod with a ball head into the metal tube to expand the metal tube, and then pull out the expansion rod. In the existing tube expander, the U-support assembly used to fix the metal tube in the tube expander is fixed, and its height is changed by the movement of the screw mechanism. In this way, during use, for workpieces that require U-supports of different heights, there is no need to replace U-supports of different heights. Since the movement direction of the screw mechanism is the same as the height direction of the U-support, the screw mechanism needs to bear the weight of the workpiece and the U-support assembly. The load of the screw mechanism is too large and it is easy to be damaged. The screw mechanism needs to be replaced frequently for maintenance, and the reliability of the U-support assembly mechanism is low. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a U-support assembly mechanism, which can improve the reliability of the U-support assembly mechanism.

[0004] The utility model also provides a tube expander with the U-support assembly mechanism.

[0005] According to the first aspect of the present invention, the U-support assembly mechanism includes a bracket, a second fixing component and a first fixing component for fixing the U-support, a lifting component and a supporting component, wherein the first fixing component is liftably arranged on the bracket, the second fixing component is arranged on the bracket, the lifting component is arranged on the bracket, the lifting component is used to drive the first fixing component to be lifted and lowered, the supporting component is arranged on the bracket, the supporting component includes a supporting seat and a first driving member, the supporting seat can be moved in a direction approaching or away from the first fixing component so that the supporting seat can abut against the lower side of the first fixing component, and the first driving member is used to drive the supporting seat to move in a direction approaching or away from the first fixing component.

[0006] The U-support assembly mechanism according to the first embodiment of the utility model has at least the following beneficial effects:

[0007] When the workpiece requires a U-support of the same height, the first driving member drives the support seat to move in a direction away from the first fixed component, so that the support seat is not located below the first fixed component, and then the first fixed component is lowered by the lifting unit so that the second fixed component is flush with the first fixed component, and U-supports of the same height can be assembled on the workpiece. When the workpiece requires U-supports of different heights, the first fixed component can be lifted by the lifting unit, and then the support seat can be moved to below the first fixed component by the first driving member. At this time, the lifting unit can stop working, so that the first fixed component abuts against the top of the support seat, which can raise the first fixed component. The lifting unit does not need to bear the load of the first fixed component, which can increase the service life of the lifting unit, reduce the number of failures of the U-support equipment mechanism, and improve the reliability of the U-support assembly mechanism.

[0008] According to some embodiments of the present invention, the support assembly is configured in multiple groups, and the multiple groups of support assemblies are arranged side by side and spaced apart along the length direction of the first fixing assembly.

[0009] According to some embodiments of the utility model, the first fixing component includes a first mounting seat, a first support plate component, a first clamping component, a first pushing plate and a second driving component, the first support plate component is arranged on the first mounting seat, the first pushing plate is located below the first support plate component, the first pushing plate can move in the up and down directions, the second driving component is used to drive the first pushing plate to move in the up and down directions, the first clamping component is arranged on the first support plate component, the first clamping component is used to clamp the U-support, the first clamping component has a clamping state and a release state, a first adjusting component is arranged between the first clamping component and the first pushing plate, the first adjusting component is passed through the first support plate component, and through the first adjusting component, the first pushing plate can switch the first clamping component between the clamping state and the release state.

[0010] According to some embodiments of the utility model, the first clamping assembly includes a seat body, a first clamping member and a second clamping member, the seat body is provided with a receiving groove for accommodating a U-support, and the opposite sides of the receiving groove are respectively provided with a first avoidance hole and a second avoidance hole, the middle position of the first clamping member and the middle position of the second clamping member are both hinged to the seat body, one end of the first clamping member is penetrated in the first avoidance hole to enter or exit the receiving groove, one end of the second clamping member is penetrated in the second avoidance hole to enter or exit the receiving groove, the other end of the first clamping member is provided with a first distance adjustment hole, and the other end of the second clamping member is provided with a second distance adjustment hole, the first distance adjustment hole and the second distance adjustment hole are cross-arranged, and the end of the first adjusting member away from the first support plate assembly is connected with a pin shaft, the pin shaft is penetrated in the first distance adjustment hole and the second distance adjustment hole, and the pin shaft can abut against the side walls of the first distance adjustment hole and the second distance adjustment hole to increase or decrease the distance between one end of the first clamping member and one end of the second clamping member.

[0011] According to some embodiments of the present invention, a locking structure is provided between the seat body and the first mounting seat, and the locking structure is used to lock the seat body.

[0012] According to some embodiments of the utility model, the locking structure includes a locking plate and a locking shaft arranged on the seat body, the first support plate assembly includes a first lower support plate and a second upper support plate arranged opposite to each other in the up and down directions, the locking plate is clamped between the first upper support plate and the first lower support plate, the locking plate can be slidably arranged on the first lower support plate and is connected with a pushing assembly, the locking plate is provided with a locking hole, the locking hole includes a third avoidance hole and a limiting hole connected to the third avoidance hole, the locking shaft includes a first connecting section, a locking section and a second connecting section, the two ends of the locking section are respectively connected with the first connecting section and the second connecting section, the first connecting section is penetrated by the first upper support plate and connected to the seat body, the second connecting section is penetrated by the first lower support plate, the locking section can enter the limiting hole through the third avoidance hole, and the first connecting section can abut against the peripheral edge of the upper side of the limiting hole, and the second connecting section can abut against the peripheral edge of the lower side of the limiting hole, and the pushing assembly is used to make the locking section enter or exit the limiting hole.

[0013] According to some embodiments of the present invention, an elastic member is provided between the first adjusting member and the seat body, and the elastic member is used to make the first adjusting member abut against the first lower supporting plate.

[0014] According to some embodiments of the utility model, a guide structure is provided between the first mounting seat and the bracket.

[0015] According to some embodiments of the utility model, the guide structure includes a guide block provided on the first mounting seat and a guide rail provided on the bracket, the guide block is provided with a guide groove, and the guide rail is passed through the guide groove.

[0016] The tube expander according to the second aspect of the present invention comprises a frame, a workbench and the U-support assembly mechanism described in the above embodiments, wherein the workbench is rotatably disposed on the frame and connected to a drive assembly, and a plurality of U-support assembly mechanisms are configured, and the plurality of U-support assembly mechanisms are spaced apart along the circumference of the workbench.

[0017] The tube expander according to the second embodiment of the utility model has at least the following beneficial effects:

[0018] When the workpiece requires a U-support of the same height, the first driving member drives the support seat to move in a direction away from the first fixed component, so that the support seat is not located below the first fixed component, and then the first fixed component is lowered by the lifting unit so that the second fixed component is flush with the first fixed component, and U-supports of the same height can be assembled on the workpiece. When the workpiece requires U-supports of different heights, the first fixed component can be lifted by the lifting unit, and then the support seat can be moved to below the first fixed component by the first driving member. At this time, the lifting unit can stop working, so that the first fixed component abuts against the top of the support seat, which can raise the first fixed component. The lifting unit does not need to bear the load of the first fixed component, which can increase the service life of the lifting unit, reduce the number of failures of the U-support equipment mechanism, and improve the reliability of the U-support assembly mechanism.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 It is a schematic diagram of the assembly of the workbench and the U-support assembly mechanism of the embodiment of the utility model;

[0022] Figure 2 This is a structural schematic diagram of a U-support assembly mechanism according to an embodiment of the utility model;

[0023] Figure 3 It is a structural schematic diagram of the U-support assembly mechanism of the embodiment of the utility model from another perspective;

[0024] Figure 4 This is an exploded schematic diagram of a U-support assembly mechanism according to an embodiment of the utility model;

[0025] Figure 5 This is an exploded schematic diagram of a first fixing assembly according to an embodiment of the present utility model;

[0026] Figure 6 This is a schematic structural diagram of a first clamping assembly and an adjusting member in an embodiment of the utility model;

[0027] Figure 7 A cross-sectional view of a first clamping assembly and an adjusting member according to an embodiment of the utility model;

[0028] Figure 8 This is an exploded schematic diagram of the first clamping assembly and the adjusting member of an embodiment of the utility model;

[0029] Fig. 9 A schematic diagram of the structure of the first clamping member or the second clamping member of an embodiment of the utility model;

[0030] Fig.10 It is a schematic diagram of assembling the locking plate and the pushing assembly according to an embodiment of the utility model.

[0031] Reference numerals:

[0032] Bracket 100, guide rail 110;

[0033] The first fixing assembly 200, the first mounting seat 210, the guide block 211, the first support plate assembly 220, the first lower support plate 221, the first upper support plate 222, the first clamping assembly 230, the seat body 231, the accommodating groove 2311, the first avoidance hole 2312, the second avoidance hole 2313, the first clamping member 232, the first distance adjustment hole 2321, the second clamping member 233, the second distance adjustment hole 2331, the second driving member 240, the first adjusting member 250, the pin 251, the locking plate 260, the locking hole 261, the third avoidance hole 2611, the limiting hole 2612, the locking shaft 270, the first connecting section 271, the locking section 272, the second connecting section 273, the pushing assembly 280, and the elastic member 290;

[0034] A second fixing assembly 300, a second mounting seat 310, a second support plate assembly 320, a second lower support plate 321, a second upper support plate 322, and a second clamping assembly 330;

[0035] Lifting assembly 400, lifting seat 410, lifting drive member 420;

[0036] Support assembly 500, support base 510, first driving member 520;

[0037] Workbench 600 , U-support 610 , and workpiece 620 . DETAILED DESCRIPTION

[0038] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0039] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0041] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0042] Reference Figures 2 to 5According to the U-support assembly mechanism of the first embodiment of the utility model, the U-support assembly mechanism includes a bracket 100, a second fixing component 300 and a first fixing component 200 for fixing a U-support 610, a lifting component 400 and a supporting component 500, wherein the second fixing component 300 is arranged on the bracket 100, the first fixing component 200 is liftably arranged on the bracket 100, the lifting component 400 is arranged on the bracket 100, the lifting component 400 is used to drive the first fixing component 200 to rise and fall, the supporting component 500 is arranged on the bracket 100, and the supporting component 500 includes a supporting seat 510 and a first driving member 520, and the supporting seat 510 can move in a direction close to or away from the first fixing component 200, so that the supporting seat 510 can be aligned with the lower part of the first fixing component 200. Side abutment, the first driving member 520 is used to drive the support seat 510 to move in a direction close to or away from the first fixed component 200. In this way, when the workpiece 620 requires a U-support 610 of different heights, the first fixed component 200 can be lifted by the lifting unit, and then the support seat 510 can be moved to the bottom of the first fixed component 200 by the first driving member 520. At this time, the lifting unit can stop working, so that the first fixed component 200 abuts against the top of the support seat 510, which can raise the first fixed component 200, and the lifting unit does not need to bear the load of the first fixed component 200, which can increase the service life of the lifting unit, so as to reduce the number of failures of the U-support 610 equipment mechanism and improve the reliability of the U-support assembly mechanism.

[0043] Specifically, when the workpiece 620 requires a U-support 610 of the same height, the first driving member 520 drives the support seat 510 to move in a direction away from the first fixed component 200, so that the support seat 510 is not located below the first fixed component 200, and then the first fixed component 200 is lowered by the lifting unit so that the second fixed component 300 is flush with the first fixed component 200, and the U-support 610 of the same height can be assembled on the workpiece 620. When the workpiece 620 requires a U-support 610 of a different height, the first fixed component 200 can be lifted by the lifting unit, and then the support seat 510 can be moved to the bottom of the first fixed component 200 by the first driving member 520. At this time, the lifting unit can stop working, so that the first fixed component 200 is abutted against the top of the support seat 510, which can raise the first fixed component 200, and the lifting unit does not need to bear the load of the first fixed component 200, which can increase the service life of the lifting unit, thereby reducing the number of failures of the U-support 610 equipment mechanism and improving the reliability of the U-support assembly mechanism.

[0044] It should be noted that the lifting assembly 400 includes a lifting seat 410 and a lifting drive 420. The lifting drive 420 is disposed on the first fixed assembly 200. The output end of the lifting drive 420 is connected to the lifting seat 410. The lifting seat 410 is used to abut against a supporting member to lift the first fixed assembly 200. The supporting member can be a workbench 600, a bracket 100 or other fixed objects, which are not limited here. Of course, in some specific embodiments, the lifting seat 410 can also be connected to the first fixed assembly 200, and the lifting drive 420 can be installed on the bracket 100, which can also drive the first fixed assembly 200 to rise and fall, which will not be described in detail here.

[0045] Reference Figure 4 In some embodiments of the present invention, three groups of support components 500 are configured, and the three groups of support components 500 are arranged side by side and spaced apart along the length direction of the first fixing component 200, which can prevent the first fixing component 200 from tilting relative to the bracket 100, so as to facilitate the assembly of the U-support 610.

[0046] Of course, in some specific implementations, the support assembly 500 may also be configured with two groups or four groups, etc., which is not limited here.

[0047] Reference Figure 2 , Figure 4 and Figure 5 In some embodiments of the utility model, the first fixing assembly 200 includes a first mounting seat 210, a first support plate assembly 220, a first clamping assembly 230, a first pushing plate and a second driving member 240. The first support plate assembly 220 is arranged on the first mounting seat 210, and the first pushing plate is located below the first support plate assembly 220. The first pushing plate can move in the up and down directions. The second driving member 240 is used to drive the first pushing plate to move in the up and down directions. The first clamping assembly 230 is arranged on the first support plate assembly 220. The first clamping assembly 230 is used to clamp the U-support 610. The first clamping assembly 230 has a clamping state and a loosening state. A first adjusting member 250 is provided between the first clamping assembly 230 and the first pushing plate. The first adjusting member 250 is penetrated through the first support plate assembly 220. Through the first adjusting member 250, the first pushing plate can switch the first clamping assembly 230 between the clamping state and the loosening state, which can facilitate the clamping and loosening of the U-support 610.

[0048] Specifically, the first mounting seat 210 is connected to the bracket 100, the first support plate assembly 220 is located above the first pushing plate, two second driving members 240 are configured, the second driving members 240 are installed on the first mounting seat 210, and the output ends of the two second driving members 240 are respectively located at both ends of the length direction of the first pushing plate and connected, the first adjusting member 250 is a rod-shaped structure, the first adjusting member 250 is arranged along the up and down directions, the first adjusting member 250 is penetrated by the first support plate assembly 220, and the lower end of the first adjusting member 250 is abutted against the first pushing plate, and the upper end of the first adjusting member 250 is connected to the first clamping assembly 230. When the first pushing plate drives the first adjusting member 250 to move along the up and down directions, the first clamping assembly 230 switches between a clamping state and a loosened state, which can facilitate the clamping and loosening of the U-support 610.

[0049] It should be noted that there are multiple first clamping components 230, which are arranged in an array at intervals, and there are correspondingly multiple first adjustment members 250, so that the U-support assembly mechanism can simultaneously assemble multiple U-supports 610 of different heights on the workpiece 620, which can improve the assembly efficiency of the U-support assembly mechanism. It will not be described in detail here.

[0050] Reference Figures 6 to 9 In some embodiments of the present utility model, the first clamping assembly 230 includes a seat body 231, a first clamping member 232 and a second clamping member 233. The seat body 231 is provided with a receiving groove 2311 for accommodating the U-support 610. The opposite sides of the receiving groove 2311 are respectively provided with a first avoidance hole 2312 and a second avoidance hole 2313. The middle position of the first clamping member 232 and the middle position of the second clamping member 233 are both hinged to the seat body 231. One end of the first clamping member 232 is penetrated through the first avoidance hole 2312 to enter or exit the receiving groove 2311. One end of the second clamping member 233 is penetrated through the second avoidance hole 2313 to enter or exit the receiving groove 2311. The other end of the first clamping member 232 is provided with a first distance adjustment hole 2321. The other end of the second clamping member 233 is provided with a second distance adjustment hole 2321. 331, the first distance adjustment hole 2321 and the second distance adjustment hole 2331 are cross-arranged, and the end of the first adjusting member 250 away from the first support plate assembly 220 is connected with a pin shaft 251, the pin shaft 251 is penetrated by the first distance adjustment hole 2321 and the second distance adjustment hole 2331, and the pin shaft 251 can abut against the side walls of the first distance adjustment hole 2321 and the second distance adjustment hole to increase or decrease the distance between one end of the first clamping member 232 and one end of the second clamping member 233. When the first clamping assembly 230 is in the clamping state, one end of the first clamping member 232 and one end of the second clamping member 233 are both accommodated in the accommodating groove 2311. When the first clamping assembly 230 is in the loosening state, one end of the first clamping member 232 and one end of the second clamping member 233 are both withdrawn from the accommodating groove 2311, which can facilitate clamping and loosening of the U-support 610.

[0051] Specifically, the bottom wall of the accommodating groove 2311 is an arc-shaped structure to match the shape of the bent portion of the U-support 610. The hinge position of the first clamping member 232 and the hinge position of the second clamping member 233 are coaxially arranged, and the hinge position of the first clamping member 232 and the hinge position of the second clamping member 233 are both located below the accommodating groove 231. The extension direction of the first distance adjustment hole 2321 and the extension direction of the second distance adjustment hole 2331 are both inclined to the up and down direction. When the first adjusting member 250 moves in the up and down direction, one end of the first clamping member 232 and one end of the second clamping member 233 can approach or move away from each other, and the distance between one end of the first clamping member 232 and one end of the second clamping member 233 increases or decreases, so that the first clamping assembly 230 can switch between a clamped state and a released state. When the first clamping assembly 230 switches from a released state to a closed state, the first clamping member 230 is in a closed state. When it reaches the clamping state, the first adjusting member 250 drives the first clamping member 232 and the second clamping member 233 to move downward, so that one end of the first clamping member 232 and one end of the second clamping member 233 are close to each other, and one end of the first clamping member 232 and one end of the second clamping member 233 can push the U-support 610 to abut against the side wall of the accommodating groove 2311, thereby limiting the up and down movement of the U-support 610, which can facilitate the fixing of the U-support 610. When the first clamping assembly 230 switches from the clamping state to the loosening state, the first adjusting member 250 drives the first clamping member 232 and the second clamping member 233 to move upward, so that one end of the first clamping member 232 and one end of the second clamping member 233 are away from each other, and one end of the first clamping member 232 and one end of the second clamping member 233 both exit the accommodating groove 2311, so that the U-support 610 can be loosened, and the workpiece 620 can be conveniently taken out.

[0052] Reference Figure 4 , Figure 5 In some embodiments of the present invention, a locking structure is provided between the seat body 231 and the first mounting seat 210 , and the locking structure is used to lock the seat body 231 , so as to facilitate the installation and removal of the seat body 231 .

[0053] Reference Figure 4 , Figure 5 and Fig.10In some embodiments of the present utility model, the locking structure includes a locking plate 260 and a locking shaft 270 provided on the seat body 231, the first support plate assembly 220 includes a first lower support plate 221 and a second upper support plate 322 arranged opposite to each other in the up-down direction, the locking plate 260 is clamped between the first upper support plate 222 and the first lower support plate 221, the locking plate 260 is slidably provided on the first lower support plate 221 and is connected to the pushing assembly 280, the locking plate 260 is provided with a locking hole 261, the locking hole 261 includes a third avoidance hole 2611 and a limiting hole 2612 connected to the third avoidance hole 2611, the locking shaft 270 includes a first connecting section 271, a locking section 27 2 and the second connecting section 273, both ends of the locking section 272 are connected to the first connecting section 271 and the second connecting section 273 respectively, the first connecting section 271 is penetrated by the first upper supporting plate 222 and connected to the seat body 231, the second connecting section 273 is penetrated by the first lower supporting plate 221, the locking section 272 can enter the limiting hole 2612 through the third avoidance hole 2611, and the first connecting section 271 can abut against the peripheral edge of the upper side of the limiting hole 2612, and the second connecting section 273 can abut against the peripheral edge of the lower side of the limiting hole 2612, and the pushing assembly 280 is used to make the locking section 272 enter or exit the limiting hole 2612, which can facilitate the installation and disassembly of the seat body 231.

[0054] Specifically, along the up-down direction, the locking plate 260 is located between the first upper support plate 222 and the first lower support plate 221, and the locking plate 260 can move along its length direction. The limiting hole 2612 and the third avoidance hole 2611 are arranged side by side along the length direction of the locking plate 260. The pushing assembly 280 can push the locking plate 260 to move along its length direction so that the locking section 272 can enter or exit the limiting hole 2612. Since the first connecting section 271 is penetrated through the first upper support plate 222, the seat body 231 cannot move horizontally relative to the first upper support plate 222. When the locking section 272 enters When the limiting hole 2612 is formed, the first connecting section 271 can abut against the peripheral edge of the upper side of the limiting hole 2612, and the second connecting section 273 can abut against the peripheral edge of the lower side of the limiting hole 2612, which can limit the up and down movement of the locking section 272, thereby limiting the up and down movement of the seat body 231 relative to the first upper support plate 222, and the locking of the seat body 231 can be completed. When the seat body 231 needs to be loosened, the locking plate 260 can be pushed by the pushing assembly 280 to make the locking section 272 enter the third avoidance hole 2611, and the operator can take out the seat body 231 upwards, which can facilitate the installation and disassembly of the seat body 231.

[0055] It should be noted that the diameters of the first connecting section 271, the locking section 272 and the second connecting section 273 are all smaller than the diameter of the third avoidance hole 2611, the diameter of the locking section 272 is smaller than the diameters of the first connecting section 271 and the second connecting section 273, and the diameters of the first connecting section 271 and the second connecting section 273 are larger than the diameter of the limiting hole 2612, which will not be described in detail here.

[0056] It should be noted that the locking structure may also be a cam locking structure or an eccentric wheel locking structure, which is not limited here.

[0057] It is understandable that the pushing assembly 280 is a toggle clamp structure, which will not be described in detail herein.

[0058] Of course, in some specific implementations, the pushing assembly 280 may also be a power component such as a cylinder or a hydraulic cylinder, which is not limited here.

[0059] Reference Figure 7 , Figure 8 In some embodiments of the utility model, an elastic member 290 is provided between the first adjusting member 250 and the seat body 231, and the elastic member 290 is used to make the first adjusting member 250 abut against the first lower support plate 221, so that the first clamping assembly 230 can automatically switch from a loose state to a clamping state, which can facilitate the clamping of the U-support 610.

[0060] Specifically, the elastic member 290 is sleeved on the first adjusting member 250, one end of the elastic member 290 abuts against the first adjusting member 250, and the other end of the elastic member 290 abuts against the seat body 231. When the first lower support plate 221 pushes the first adjusting member 250 to move upward, the elastic member 290 is compressed, and the elastic member 290 obtains elastic potential energy. The first clamping assembly 230 switches from a clamping state to a loosened state. When the first lower support plate 221 moves downward, the first lower support plate 221 releases the first adjusting member 250, and the first adjusting member 250 moves downward under the action of the elastic potential energy of the elastic member 290. The first clamping assembly 230 can automatically switch from a loosened state to a clamping state, and can facilitate the clamping of the U-support 610.

[0061] It should be noted that the elastic member 290 is a member that can undergo axial elastic deformation, such as a compression spring or a rubber member, and is not limited here.

[0062] Reference Figure 1 , Figure 3 In some embodiments of the present invention, a guide structure is provided between the first mounting seat 210 and the bracket 100, which can guide the first mounting seat 210 so that the first mounting seat 210 moves in the up and down directions, thereby improving the movement stability of the first fixing component 200.

[0063] Reference Figure 1 , Figure 3 In some embodiments of the utility model, the guide structure includes a guide block 211 provided on the first mounting seat 210 and a guide rail 110 provided on the bracket 100. The guide block 211 is provided with a guide groove. The guide rail 110 is passed through the guide groove, which can guide the first mounting seat 210 so that the first mounting seat 210 moves in the up and down directions, thereby improving the movement stability of the first fixing component 200.

[0064] Specifically, the guide rail 110 is inserted into the guide groove and can be connected to the side wall of the guide groove, so as to guide the first mounting seat 210 so that the first mounting seat 210 moves in the up and down directions, thereby improving the movement stability of the first fixing component 200 .

[0065] It should be noted that the guide structure can also be a structure in which a guide shaft and a guide hole cooperate. The guide shaft is arranged on the first mounting seat 210, and the guide hole is arranged on the bracket 100. The guide hole is a waist-shaped hole structure. The guide hole is extended in the up and down directions. The guide shaft is passed through the guide hole and can also guide the first mounting seat 210. It will not be described in detail here.

[0066] Reference Figure 2 , Figure 3 In some embodiments of the utility model, the second fixing assembly 300 includes a second mounting seat 310, a second support plate assembly 320, a second clamping assembly 330, a second pushing plate and a second driving member 240. The second support plate assembly 320 is arranged on the second mounting seat 310, and the second pushing plate is located below the second support plate assembly 320. The second pushing plate can move in the up and down directions. The second driving member 240 is used to drive the second pushing plate to move in the up and down directions. The second clamping assembly 330 is arranged on the second support plate assembly 320. The second clamping assembly 330 is used to clamp the U-support 610. The second clamping assembly 330 has a clamping state and a loosening state. A second adjusting member is provided between the second clamping assembly 330 and the second pushing plate. The second adjusting member is passed through the second support plate assembly 320. Through the second adjusting member, the second pushing plate can switch the second clamping assembly 330 between the clamping state and the loosening state, which can facilitate the clamping and loosening of the U-support 610.

[0067] Specifically, the second mounting seat 310 is connected to the bracket 100, the second support plate assembly 320 is located above the second push plate, two second driving members 240 are configured, the second driving members 240 are installed on the second mounting seat 310, and the output ends of the two second driving members 240 are respectively located at both ends of the length direction of the second push plate and connected, the second adjusting member is a rod-shaped structure, the second adjusting member is arranged along the up and down directions, the second adjusting member is passed through the second support plate assembly 320, and the lower end of the second adjusting member is abutted against the second push plate, and the upper end of the second adjusting member is connected to the second clamping assembly 330. When the second push plate drives the second adjusting member to move along the up and down directions, the second clamping assembly 330 switches between a clamping state and a loosened state, which can facilitate the clamping and loosening of the U-support 610.

[0068] It should be noted that the specific structure of the second clamping assembly 330 is the same as the specific structure of the first clamping assembly 230, and will not be described in detail here.

[0069] Reference Figure 1 , Figure 2 According to the tube expander of the second embodiment of the utility model, it includes a frame, a workbench 600 and a U-support assembly mechanism of the first embodiment of the utility model. The workbench 600 is rotatably arranged on the frame and connected to a driving component. The U-support assembly mechanism is configured with multiple, and multiple U-support assembly mechanisms are arranged at intervals along the circumference of the workbench 600. When the workpiece 620 requires a U-support 610 of different heights, the first fixing component 200 can be lifted by the lifting unit, and then the support seat 510 is moved to the bottom of the first fixing component 200 by the first driving member 520. At this time, the lifting unit can stop working, so that the first fixing component 200 is abutted against the top of the support seat 510, which can raise the first fixing component 200, and the lifting unit does not need to bear the load of the first fixing component 200, which can increase the service life of the lifting unit, so as to reduce the number of failures of the U-support 610 equipment mechanism, and can improve the reliability of the U-support assembly mechanism.

[0070] Specifically, when the workpiece 620 requires a U-support 610 of the same height, the first driving member 520 drives the support seat 510 to move in a direction away from the first fixed component 200, so that the support seat 510 is not located below the first fixed component 200, and then the first fixed component 200 is lowered by the lifting unit so that the second fixed component 300 is flush with the first fixed component 200, and the U-support 610 of the same height can be assembled on the workpiece 620. When the workpiece 620 requires a U-support 610 of a different height, the first fixed component 200 can be lifted by the lifting unit, and then the support seat 510 can be moved to the bottom of the first fixed component 200 by the first driving member 520. At this time, the lifting unit can stop working, so that the first fixed component 200 is abutted against the top of the support seat 510, which can raise the first fixed component 200, and the lifting unit does not need to bear the load of the first fixed component 200, which can increase the service life of the lifting unit, thereby reducing the number of failures of the U-support 610 equipment mechanism and improving the reliability of the U-support assembly mechanism.

[0071] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0072] The embodiment is described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiment, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the present purpose.

Claims

1. A U-support assembly mechanism, characterized in that: include: Bracket (100); A first fixing assembly (200) and a second fixing assembly (300) for fixing the U-support (610), wherein the first fixing assembly (200) is liftably disposed on the bracket (100), and the second fixing assembly (300) is disposed on the bracket (100); A lifting component (400) is disposed on the support (100), and the lifting component (400) is used to drive the first fixing component (200) to move up and down; A support assembly (500) is arranged on the bracket (100), and the support assembly (500) includes a support seat (510) and a first driving member (520). The support seat (510) can move in a direction approaching or away from the first fixing assembly (200) so that the support seat (510) can abut against the lower side of the first fixing assembly (200), and the first driving member (520) is used to drive the support seat (510) to move in a direction approaching or away from the first fixing assembly (200).

2. The U-support assembly mechanism according to claim 1, characterized in that: The support components (500) are configured in multiple groups, and the multiple groups of support components (500) are arranged side by side and spaced apart along the length direction of the first fixing component (200).

3. The U-support assembly mechanism according to claim 1, characterized in that: The first fixing assembly (200) comprises a first mounting seat (210), a first support plate assembly (220), a first clamping assembly (230), a first push plate and a second driving member (240), wherein the first support plate assembly (220) is arranged on the first mounting seat (210), the first push plate is located below the first support plate assembly (220), the first push plate can move in the up-down direction, the second driving member (240) is used for driving the first push plate to move in the up-down direction, and the first clamping assembly (230) is arranged on the first mounting seat (210). The first support plate assembly (220), the first clamping assembly (230) is used to clamp the U-support (610), the first clamping assembly (230) has a clamping state and a loose state, a first adjusting member (250) is provided between the first clamping assembly (230) and the first pushing plate, the first adjusting member (250) is passed through the first support plate assembly (220), and through the first adjusting member (250), the first pushing plate can enable the first clamping assembly (230) to switch between the clamping state and the loose state.

4. The U-bracket assembly mechanism according to claim 3, characterized in that: The first clamping assembly (230) comprises a seat body (231), a first clamping member (232) and a second clamping member (233); the seat body (231) is provided with a receiving groove (2311) for receiving the U-support (610); the first avoidance hole (2312) and the second avoidance hole (2313) are respectively provided on opposite sides of the receiving groove (2311); the middle position of the first clamping member (232) and the middle position of the second clamping member (233) are both hinged to the seat body (231); one end of the first clamping member (232) is inserted into the first avoidance hole (2312) to enter or exit the receiving groove (2311); one end of the second clamping member (233) is inserted into the second avoidance hole (2313) to enter or exit the receiving groove (2311); The first clamping member (232) has a first distance adjustment hole (2321) at the other end thereof, and the second clamping member (233) has a second distance adjustment hole (2331) at the other end thereof. The first distance adjustment hole (2321) and the second distance adjustment hole (2331) are arranged crosswise. The end of the first adjusting member (250) away from the first support plate assembly (220) is connected with a pin shaft (251), and the pin shaft (251) is passed through the first distance adjustment hole (2321) and the second distance adjustment hole (2331). The pin shaft (251) can abut against the side walls of the first distance adjustment hole (2321) and the second distance adjustment hole, so that the distance between one end of the first clamping member (232) and one end of the second clamping member (233) is increased or decreased.

5. The U-bracket assembly mechanism according to claim 4, characterized in that: A locking structure is provided between the seat body (231) and the first support plate assembly (220), and the locking structure is used to lock the seat body (231).

6. The U-bracket assembly mechanism according to claim 5, characterized in that: The locking structure comprises a locking plate (260) and a locking shaft (270) arranged on the seat body (231); the first support plate assembly (220) comprises a first lower support plate (221) and a second upper support plate (322) arranged opposite to each other in the up-down direction; the locking plate (260) is clamped between the first upper support plate (222) and the first lower support plate (221); the locking plate (260) is slidably arranged on the first lower support plate (221) and is connected to a pushing assembly (280); the locking plate (260) is provided with a locking hole (261); the locking hole (261) comprises a third avoidance hole (2611) and a limiting hole (2612) connected to the third avoidance hole (2611); the locking shaft (270) comprises a first connecting section (271), a locking section (272) and a second connecting section (271); The connecting section (273) comprises a connecting section (273), two ends of the locking section (272) are respectively connected to the first connecting section (271) and the second connecting section (273), the first connecting section (271) is passed through the first upper supporting plate (222) and connected to the seat body (231), the second connecting section (273) is passed through the first lower supporting plate (221), the locking section (272) can enter the limiting hole (2612) through the third avoidance hole (2611), and the first connecting section (271) can abut against the peripheral edge of the upper side of the limiting hole (2612), and the second connecting section (273) can abut against the peripheral edge of the lower side of the limiting hole (2612), and the pushing assembly (280) is used to make the locking section (272) enter or exit the limiting hole (2612).

7. The U-bracket assembly mechanism according to claim 6, characterized in that: An elastic member (290) is provided between the first adjusting member (250) and the seat body (231), and the elastic member (290) is used to make the first adjusting member (250) abut against the first lower supporting plate (221).

8. The U-bracket assembly mechanism according to claim 3, characterized in that: A guiding structure is provided between the first mounting seat (210) and the bracket (100).

9. The U-bracket assembly mechanism according to claim 8, characterized in that: The guide structure comprises a guide block (211) provided on the first mounting seat (210) and a guide rail (110) provided on the bracket (100); the guide block (211) is provided with a guide groove, and the guide rail (110) passes through the guide groove.

10. A tube expander, characterized in that: It comprises a frame, a workbench (600) and a U-support assembly mechanism as claimed in any one of claims 1 to 9, wherein the workbench (600) is rotatably arranged on the frame and connected to a driving component, and a plurality of U-support assembly mechanisms are configured, and the plurality of U-support assembly mechanisms are arranged at intervals along the circumference of the workbench (600).

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