A fixing device for aluminum pipe production with high versatility

Abstract

The application discloses a fixing device with high universality for aluminum pipe production and belongs to the field of clamps. The fixing device comprises a workbench, a pressing part and a power part. The power part is used for driving the pressing part to be close to or away from the aluminum pipe to fix the aluminum pipe. The pressing part is made of flexible rubber material which can easily deform. A plurality of connecting parts are formed on the pressing part and are distributed on the pressing part along a first dimension. The power part is provided with a plurality of power parts. The number and positions of the plurality of power parts and the plurality of connecting parts are matched so that a single power part and a single connecting part constitute a transmission. When the aluminum pipe is placed on the workbench, the axial direction of the aluminum pipe extends along a second dimension. The second dimension is perpendicular to the first dimension. The pressing part deforms after being close to the aluminum pipe and being in contact with the aluminum pipe so as to be attached to the outer wall of the aluminum pipe. The fixing device has the advantages of high universality, stable fixation, small clamping force and no damage to the aluminum pipe.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of clamps, in particular to a fixing device with strong universality for aluminum pipe production. BACKGROUND

[0002] When aluminum pipes are produced, the ports need to be polished or the aluminum pipes need to be cut off. When these processes are performed, the aluminum pipes need to be clamped and fixed in position. In the prior art, the aluminum pipes are generally clamped using a tiger mouth clamp or other clamp tool to firmly bite the aluminum pipes. However, this can easily cause the aluminum pipes to deform, and it is difficult to adapt to the aluminum pipes when the size of the aluminum pipes changes. SUMMARY

[0003] The summary part of the present application is used to introduce the concept in a brief form, which will be described in detail in the specific embodiment part. The summary part of the present application is not intended to identify the key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0004] To solve the technical problems mentioned in the background part, some embodiments of the present application provide a fixing device with strong universality for aluminum pipe production, which can realize stable fixation and small clamping force without damaging the aluminum pipe. The fixing device with strong universality for aluminum pipe production comprises: a workbench, a support plane is formed on the workbench, and the support plane is used to place the aluminum pipe; a pressing member is arranged above the workbench; a power member is used to drive the pressing member to approach or move away from the aluminum pipe; the pressing member is made of flexible rubber material which can easily deform; a plurality of connecting parts are formed on the pressing member, and the connecting parts are distributed on the pressing member along a first dimension; a plurality of power members are provided, and the number and positions of the plurality of power members and the plurality of connecting parts are matched to form a transmission between a single power member and a single connecting part; when the aluminum pipe is placed on the workbench, the axial direction of the aluminum pipe extends along a second dimension; the second dimension is perpendicular to the first dimension; and the pressing member deforms after approaching and contacting the aluminum pipe to fit the outer wall of the aluminum pipe.

[0005] Further, a transmission member is arranged at the power member, and the transmission member is used to form an elastic transmission between the power member and the connecting part.

[0006] Further, a combination member is arranged at the power member, and the combination member is used to connect the plurality of power members together to form a whole which synchronously rises and falls; a first driving member is arranged at the combination member, and the first driving member is used to drive the combination member to approach or move away from the aluminum pipe.

[0007] Further, the combination member comprises: a driving part, which is connected to at least part of the power members, so that when the combination member approaches or moves away from the aluminum pipe, at least part of the power members can be stationary or movable relative to the connecting part.

[0008] Further, the driving part is provided with multiple groups of power members which are static or in motion relative to the connecting part when the combination part is close to or away from the aluminum pipe.

[0009] Further, the pressing part is provided with a first pressing part; the two sides of the pressing part are provided with two second pressing parts; the second pressing parts are provided with second driving parts which are used to drive the two second pressing parts to simultaneously approach or move away from the middle part of the pressing part; the second pressing parts are matched with the first pressing part so that when the second pressing parts approach the middle part of the pressing part, the second pressing parts will make the pressing part adhere to the lower part, upper part or middle part of the outer wall of the aluminum pipe through the first pressing part.

[0010] Further, the transmission part is one of a spring, elastic rod and elastic sheet.

[0011] Further, the surface of the pressing part which contacts the aluminum pipe is provided with multiple recesses which are used to increase the friction between the pressing part and the outer wall of the aluminum pipe.

[0012] Further, the transmission part comprises a push rod, the push rod is provided with an abutting plate, the abutting plate is directly or indirectly connected with the connecting part so that the abutting plate and the connecting part move synchronously, the power member is an abutting sleeve, the push rod and the abutting sleeve are in sliding connection, the abutting sleeve and the abutting plate are provided with an elastic member, the elastic member is sleeved on the outer wall of the push rod, one end of the elastic member abuts against the abutting sleeve and the other end abuts against the abutting plate.

[0013] Further, the working table is provided with an avoiding groove, the pressing part is located above the avoiding groove, the pressing part is provided with two, one is located above the upper part of the aluminum pipe and the other is located below the lower part of the aluminum pipe, the two pressing parts form a group, the avoiding groove is provided with one or more, and the pressing part is provided with one group or multiple groups.

[0014] The application has the advantages of providing a fixing device for aluminum pipe production which is fixed and stable, has small clamping force and is not easy to damage the aluminum pipe and has strong universality. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The drawings illustrate embodiments of the present application and, together with their description, serve to explain the principles of the present application.

[0016] In addition, throughout the drawings, same or similar reference numerals are used to denote same or similar elements. It should be understood that the drawings are schematic, and the elements and elements are not necessarily drawn according to the scale.

[0017] In the drawings:

[0018] Figure 1 is a whole schematic view according to an embodiment of the present application;

[0019] Figure 2 is a structural schematic view of a part of the embodiment, mainly showing the structure of the pressing member and the surrounding parts;

[0020] Figure 3 is a part of the embodiment; Figure 2 is an enlarged view of A of

[0021] Figure 4 is an enlarged view of B of Figure 2

[0022] Figure 5 is a structural schematic view of a part of the embodiment, mainly showing the structure of the second pressing part and the surrounding parts;

[0023] Figure 6 is a structural schematic view of a part of the embodiment, mainly showing the structure of the pressing member and the first pressing part;

[0024] Figure 7 is a structural schematic view of a part of the embodiment, mainly showing the structure of the power member and the surrounding parts;

[0025] Figure 8 is a structural schematic view of a part of the embodiment, mainly showing the structure of the transmission member and the surrounding parts;

[0026] Figure 9 is a structural schematic view of a part of the embodiment, mainly showing the structure of the pressing plate;

[0027] Figure 10 is a structural schematic view of a part of the embodiment, mainly showing the structure of the adjusting plate and the surrounding parts;

[0028] Figure 11 is a structural schematic view of a part of the embodiment, mainly showing the structure of the adjusting plate and the power member;

[0029] Figure 12 is a structural schematic view of a part of the embodiment, mainly showing the structure of the second driving member;

[0030] Figure 13 is a structural schematic view of a part of the embodiment, mainly showing the structure of the mounting frame and the surrounding parts;

[0031] Figure 14 is a structural schematic view of a part of the embodiment, mainly showing the schematic view that the flexible belt cannot completely fit the aluminum pipe;

[0032] Figure 15 ​is a structural schematic diagram that is part of the embodiment, mainly showing a schematic diagram in which the flexible belt is completely attached to the aluminum pipe.

[0033] The support table 1, the support frame 2, the driving cylinder 3, the pushing piece 4, the connecting piece 5, the adjusting piece 6, the flexible belt 7, the transmission plate 8, the first driving motor 9, the support plate 21, the push rod 41, the elastic piece 42, the abutting plate 43, the abutting frame 44, the connecting column 45, the insertion rod 46, the pressing plate 51, the abutting sleeve 52, the external connecting plate 61, the connecting frame 62, the connecting plate 63, the third driving motor 64, the third driving lead screw 65, the adjusting plate 66, the transmission belt 67, the insertion slot 71, the insertion hole 72, the connecting rod 81, the limiting pressing rod 82, the first driving lead screw 91, the driving plate 92, the mounting frame 93, the second driving motor 94, the second driving lead screw 95, the guide rod 96. DETAILED DESCRIPTION

[0034] Embodiments of the present disclosure will be described in more detail with reference to the drawings. Although certain embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms, and should not be interpreted as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure can be more thoroughly and completely understood. It should be understood that the drawings of the present disclosure are only for exemplary purposes, and are not intended to limit the scope of protection of the present disclosure.

[0035] In addition, it should be further noted that, for the convenience of description, only the parts related to the present application are shown in the drawings. The embodiments in the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0036] It should be noted that the terms "first", "second", etc. mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not intended to limit the functions performed by these devices, modules or units or the mutual dependency relationship.

[0037] It should be noted that the modification of "one" or "multiple" in the present disclosure is illustrative rather than limiting, and those skilled in the art should understand that, unless otherwise explicitly indicated in the context, it should be understood as "one or more".

[0038] The present disclosure will be described in detail below with reference to the drawings and in combination with the embodiments.

[0039] Reference Figures 1-15 ,

[0040] The utility model provides a fixing device for aluminum pipe production, which comprises a workbench, a support plane formed on the workbench for placing an aluminum pipe, a support plate 21 fixedly installed on the workbench, a support frame 2 fixedly connected with the support plate 21, a first driving member provided on the support frame 2, the first driving member being a driving cylinder 3, a coupling member provided below the driving cylinder 3, a plurality of power members installed on the coupling member, the power members being abutting sleeves 52, a pushing member 4 provided below the abutting sleeves 52, a pressing member provided below the pushing member 4, the driving cylinder 3 driving the pressing member to approach or move away from the aluminum pipe through the coupling member and the abutting sleeves 52, the pressing member being made of rubber material and being flexible and easy to deform, a plurality of connecting portions formed on the pressing member, the connecting portions being insertion holes 72, the pressing member being a flexible belt 7, the connecting portions being distributed on the pressing member along a first dimension, and the power members being matched in number and position with the connecting portions so that a single power member and a single connecting portion constitute a transmission through the pushing member 4.

[0041] The pushing member 4 comprises a push rod 41 slidably connected with the abutting sleeve 52, an abutting plate 43 formed on the push rod 41, the abutting plate 43 being integrally formed with the push rod 41, an abutting frame 44 provided below the abutting plate 43, an insertion rod 46 provided on the abutting frame 44, and the insertion rod 46 being inserted into the insertion hole 72 so that the insertion rod 46 is connected with the flexible belt 7.

[0042] The coupling member comprises a driving portion connected with at least part of the power members, so that at least part of the power members are stationary or move relative to the connecting portions when the coupling member approaches or moves away from the aluminum pipe, and a plurality of driving portions are provided, so that a plurality of groups of power members are stationary or move relative to the connecting portions when the coupling member approaches or moves away from the aluminum pipe.

[0043] Further, the coupling member further comprises a connecting member 5 and a pressing plate 51, the connecting member 5 being located above the pressing plate 51 and being fixedly connected with the connecting member 5, a plurality of through holes being formed in the connecting member 5 and the pressing plate 51 and being matched in position and shape with the abutting sleeve 52, so that the abutting sleeve 52 is installed in the through holes, an elastic member 42 being provided between the abutting sleeve 52 and the abutting plate 43, the elastic member 42 being sleeved on the outer wall of the push rod 41 and one end of the elastic member 42 abutting against the abutting sleeve 52 and the other end of the elastic member 42 abutting against the abutting plate 43.

[0044] The driving part is the adjusting piece 6, and the driving part comprises an external connecting plate 61, the external connecting plate 61 is fixedly connected with the pressing plate 51, a connecting frame 62 is fixedly installed on the external connecting plate 61, a connecting plate 63 is fixedly installed on the connecting frame 62, and a third driving motor 64 is fixedly installed on the connecting plate 63; a third driving lead screw 65 is installed at the output end of the third driving motor 64, and the third driving lead screw 65 is rotationally connected with the connecting plate 63 and the external connecting plate 61; two third driving lead screws 65 are arranged, adjusting plates 66 are arranged on the two third driving lead screws 65, the adjusting plates 66 are threadedly connected with the third driving lead screws 65, so that the third driving lead screws 65 rotate to drive the adjusting plates 66 to ascend or descend; a transmission belt 67 is arranged between the two third driving lead screws 65, and the transmission belt 67 is used to synchronously rotate the two third driving lead screws 65. The adjusting plates 66 are fixedly connected with the partial abutting sleeves 52. Since the driving part is provided with a plurality of driving parts, the adjusting plates 66 also exist in plurality, so that a plurality of groups of abutting sleeves 52 are fixedly connected with the adjusting plates 66, the area where the abutting sleeves 52 fixedly connected with the adjusting plates 66 are arranged is defined as an adjusting area, the abutting sleeves 52 in the adjusting area are slidably connected with the through holes, that is, the connecting pieces 5 and the pressing plate 51, and the abutting sleeves 52 outside the adjusting area are fixedly connected with the pressing plate 51 and the pressing plate 51.

[0045] The abutting sleeves 52 are arranged in plurality along the first dimension on the connecting pieces 5 and the pressing plate 51, and are arranged in at least two along the second dimension, preferably two in the embodiment; the push rods 41 are also provided with two, and the two push rods 41 form a group; the abutting plates 43 are used to connect the two push rods 41 together and are integrally formed with the two push rods 41, so that the two push rods 41 and the abutting plate 43 form an integral whole. The abutting frames 44 are provided with two groups and are fixedly connected with the abutting plate 43. The connecting columns 45 are arranged between the two abutting frames 44.

[0046] The pressing part is formed with a first pressing part; two second pressing parts are arranged on the two sides of the pressing part; a second driving part is arranged at the second pressing part, and the second driving part is used to drive the two second pressing parts to simultaneously approach or move away from the middle part of the pressing part; when the second pressing part approaches the middle part of the pressing part, the second pressing part approaches the lower part, the upper part or the middle part of the outer wall of the aluminum pipe through the first pressing part.

[0047] The first pressing part is a slot 71, and the second pressing part is a limiting pressing rod 82. The limiting pressing rod 82 is inserted into the slot 71, and the limiting pressing rod 82 is made of a rigid material.

[0048] The second driving member comprises: a first driving motor 9, the first driving motor 9 is fixedly installed on the support plate 21, and the output end of the first driving motor 9 is fixedly installed with a driving plate 92, the driving plate 92 is rotationally connected with the support plate 21; the driving plate 92 is arranged on the first driving lead screw 91 and is threadedly connected with the first driving lead screw 91, the first driving motor 9 and the first driving lead screw 91 are both provided with two, the driving plate 92 is threadedly connected with the two first driving lead screws 91, the two first driving motors 9 drive the two first driving lead screws 91 to rotate synchronously, thereby enabling the driving plate 92 to move on the first driving lead screw 91; the driving plate 92 is provided with a mounting frame 93, the mounting frame 93 is fixedly connected with the driving plate 92, the second driving motor 94 is fixedly installed on the mounting frame 93, the output end of the second driving motor 94 is fixedly installed with a second driving lead screw 95, the second driving lead screw 95 is rotationally connected with the mounting frame 93, the transmission plate 8 is threadedly installed on the second driving lead screw 95, the two sides of the second driving lead screw 95 are provided with guide rods 96, the guide rods 96 are provided with two, the two guide rods 96 are slidably connected with the transmission plate 8 for guiding the transmission plate 8, and the second driving motor 94 drives the second driving lead screw 95 to rotate, thereby enabling the transmission plate 8 to move. The connecting rod 81 is fixedly installed on the transmission plate 8, and the limiting pressing rod 82 is fixedly installed on the connecting rod 81.

[0049] The driving plate 92 is provided with two, the first driving lead screw 91 is a double-helical screw rod, thereby the first driving lead screw 91 rotates to enable the two driving plates 92 to synchronously approach or synchronously move away from each other, the transmission plate 8 is provided with two, the second driving lead screw 95 is a double-helical screw rod, and the second driving lead screw 95 rotates to enable the two transmission plates 8 to approach or move away from each other.

[0050] The workbench is provided with an avoiding groove; the pressing member is located above the avoiding groove; the pressing member is provided with two, one is located above the upper part of the aluminum pipe, and the other is located below the lower part of the aluminum pipe, so that the two pressing members form a group; the avoiding groove is provided with one or more; the pressing member is provided with one group or more groups.

[0051] The limiting pressing rod 82 moves from the two sides of the flexible belt 7 to the middle of the flexible belt 7.

[0052] When the aluminum pipe is placed on the workbench, the axial direction of the aluminum pipe extends along the second dimension; the second dimension is perpendicular to the first dimension; the pressing member approaches the aluminum pipe and deforms after being in contact with the aluminum pipe to enable the pressing member to be attached to the outer wall of the aluminum pipe.

[0053] Further, a plurality of recesses are arranged on the surface of the pressing member in contact with the aluminum pipe, for increasing the friction between the pressing member and the outer wall of the aluminum pipe.

[0054] Working condition:

[0055] The aluminum pipe is placed on the supporting plane, and then the upper driving cylinder 3 drives the upper connecting piece 5 and the pressing plate 51 to move downward, the connecting piece 5 and the pressing plate 51 directly or indirectly drive all the abutting sleeves 52 to move downward, the abutting sleeves 52 drive the abutting plates 43 and the push rods 41 to move downward through the elastic members 42, and then the push rods 41 drive the flexible belts 7 to move downward through the inserting rods 46, so that the flexible belts 7 abut against the outer wall of the aluminum pipe, and different sizes of aluminum pipes can be adapted, but the driving cylinder 3 will continue to drive the abutting sleeves 52 to move downward through the connecting piece 5 and the pressing plate 51, so that the inserting rods 46 and the push rods 41 at the position where the flexible belts 7 have contacted the aluminum pipe stop moving, and then the abutting plates 43 are compressed, and the inserting rods 46 make the flexible belts 7 press on the outer wall of the aluminum pipe through the elastic force of the abutting plates 43. Since a plurality of push rods 41 and inserting rods 46 are arranged, a plurality of points on the flexible belts 7 contact the outer wall of the aluminum pipe, so that more positions of the flexible belts 7 are in contact with the aluminum pipe, that is, a plurality of points exist on the aluminum pipe, and the plurality of points are subjected to force, so that the aluminum pipe can be stably pressed, and the stability of the fixed aluminum pipe is better ensured. Since the adjusting area exists in the plurality of abutting sleeves 52, the abutting sleeves 52 in the adjusting area can adjust the position of the connecting piece 5, that is, the third driving motor 64 drives the two third driving lead screws 65 to rotate through the transmission belt 67, and then the two third driving lead screws 65 can drive the adjusting plate 66 to move close to or away from the connecting piece 5, so that the abutting sleeves 52 in the adjusting area are adjusted in position; the purpose of this is that the flexible belts 7 at the middle position stop moving at the first time after contacting the aluminum pipe, but the push rods 41 and the inserting rods 46 at other positions continue to drive the flexible belts 7 to move, so that the force applied to the aluminum pipe by the flexible belts 7 at the middle position becomes larger and larger (because the flexible belts 7 stop moving, the push rods 41 and the inserting rods 46 stop moving, the compression degree of the elastic members 42 increases, and then the elastic force of the elastic members 42 applied to the flexible belts 7 increases), which is easy to cause the stress at different positions of the outer wall of the aluminum pipe to be seriously uneven, and the aluminum pipe may be deformed, so that the abutting sleeves 52 in the adjusting area move upward, so that the compression degree of the elastic members 42 is changed, so that the elastic force of the elastic members 42 can be better controlled, a plurality of groups of abutting sleeves 52 in the adjusting area are connected with the driving part, so that the positions of the plurality of groups of abutting sleeves 52 can be controlled, so that the stress of the plurality of points on the aluminum pipe changes, so that the flexible belts 7 can better adhere to the outer wall of the aluminum pipe while ensuring the force applied to the aluminum pipe by the flexible belts 7, the stress of the aluminum pipe is uniform, and the area of the flexible belts 7 adhering to the outer wall of the aluminum pipe is greatly increased, so that the stability of the fixed aluminum pipe is better ensured by increasing the friction force preventing the aluminum pipe from sliding axially when the aluminum pipe is fixed, and the aluminum pipe can be stably fixed without a large force, so that the aluminum pipe can be better fixed.

[0056] Additionally, when the flexible strip 7 is bonded to the outer wall of the aluminum tube, a situation may arise, such as... Figure 14 As shown, there is a position at the edge of the aluminum tube where the lower part of the aluminum tube cannot be adhered to by the flexible strip 7. To further increase the area of ​​adhesion between the flexible strip 7 and the aluminum tube, the transmission plate 8 is moved from both sides of the flexible strip 7 towards the middle of the flexible strip 7, so that the flexible strip 7 that is not adhered to the lower part of the aluminum tube adheres to the lower part of the aluminum tube. Figure 15 The diagram shows the situation where the flexible strip 7 is also attached to the lower part of the aluminum tube.

[0057] In addition, the flexible strip 7 in this invention can also fix multiple aluminum tubes simultaneously.

[0058] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A versatile fixing device for aluminum tube production, comprising: The workbench has a support plane for placing aluminum tubes. Clamping components are located above the worktable; The power component is used to drive the clamping component to move closer to the aluminum tube to fix it or move it away from the aluminum tube. Its features are: The clamping element is made of flexible rubber material that can easily deform; The clamping member has a plurality of connecting portions formed thereon, and the connecting portions are distributed on the clamping member along a first dimension; The power components are provided in multiple ways, and the number and position of the multiple power components and multiple connecting parts are matched so that a single power component and a single connecting part constitute a transmission. When the aluminum tube is placed on the workbench, the axial direction of the aluminum tube extends along the second dimension; the second dimension is perpendicular to the first dimension; the clamping component deforms after approaching and contacting the aluminum tube so that the clamping component fits against the outer wall of the aluminum tube. The power component is provided with a transmission component, which is used to form an elastic transmission between the power component and the connecting part. The transmission component includes: A push rod; an abutment plate is formed on the push rod; the abutment plate is directly or indirectly connected to the connecting part, so that the abutment plate and the connecting part can move synchronously; The power component is an abutment sleeve; the push rod is slidably connected to the abutment sleeve; An elastic element is provided between the abutting sleeve and the abutting plate. The elastic element is sleeved on the outer wall of the push rod, and one end of the elastic element abuts against the abutting sleeve and the other end abuts against the abutting plate. A first pressing portion is formed on the clamping member; The clamping member has two second pressing parts on both sides; The second pressing part is provided with a second driving member, which is used to drive the two second pressing parts to move closer to or away from the middle of the pressing part at the same time; When the second pressing part cooperates with the first pressing part to bring the second pressing part close to the middle of the clamping member, the second pressing part will cause the clamping member to adhere to the lower, upper or middle part of the outer wall of the aluminum tube through the first pressing part.

2. The versatile fixing device for aluminum tube production according to claim 1, characterized in that: The power component is provided with a connecting component, which is used to connect multiple power components together to form a synchronous lifting and lowering whole. The connector is provided with a first driving member, which is used to drive the connector to move closer to or away from the aluminum tube.

3. The versatile fixing device for aluminum tube production according to claim 2, characterized in that: The coupling includes: The drive unit is connected to at least a portion of the power components, which allows at least a portion of the power components to remain stationary or move relative to the connecting part when the connecting part approaches or moves away from the aluminum tube.

4. The versatile fixing device for aluminum tube production according to claim 3, characterized in that: The drive unit is provided in multiple parts, so that when the connecting part is close to or away from the aluminum tube, there are multiple sets of power components that are stationary or moving relative to the connecting part.

5. The versatile fixing device for aluminum tube production according to claim 1, characterized in that: The transmission component is one of a spring, an elastic rod, or an elastic sheet.

6. The versatile fixing device for aluminum tube production according to claim 1, characterized in that: The surface of the clamping component that contacts the aluminum tube has multiple recesses to increase the friction between the clamping component and the outer wall of the aluminum tube.

7. The versatile fixing device for aluminum tube production according to claim 1, characterized in that: The workbench is provided with a clearance groove; the clamping component is located above the clearance groove; there are two clamping components, one located above the upper part of the aluminum tube and the other located below the lower part of the aluminum tube, so that the two clamping components can be combined into a set. The clearance slot is provided with one or more; The clamping components are provided in one or more sets.

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