An adjustable clamping device

Abstract

The utility model relates to a kind of adjustable clamping devices, including base, top horizontal arrangement has sliding slot;Clamping seat, and respectively located the symmetrical arrangement of both ends of base, the opposite side of two clamping seats is also provided with the through-hole for the auxiliary fixation of pipe;Positioning assembly, respectively located the end face of two described clamping seat arrangement, and simultaneously with the inner wall and outer wall of pipe adhere locking;The present application utilizes air bag body to simultaneously clamp and fix the inner and outer two side walls of pipe end, not only can make air bag body and pipe surface closely adhere, this flexible clamping mode avoids the rigid contact of mechanical component and pipe, can effectively prevent pipe surface from being scratched, wear, and air bag body can be adaptively adjusted according to actual fixed pipe inner diameter and outer diameter, can avoid the cooperation gap due to production error, simultaneously can also expand its application range, so that it can be directly used to pipe within certain specification range.

Description

Technical Field

[0001] This utility model relates to the field of pipe processing technology, specifically to an adjustable clamping device. Background Technology

[0002] In pipe processing, testing, and transportation, clamping devices are indispensable auxiliary tools. Traditional pipe clamping devices typically employ a fixed structure design, adaptable only to specific pipe specifications. For pipes of different diameters and lengths, frequent replacement or adjustment of the clamping equipment is required, resulting in cumbersome and inefficient operation. Even if some clamping devices possess certain adjustment functions, their adjustment methods are often limited and lack sufficient precision, making it difficult to achieve accurate positioning and stable clamping of the pipe. This can easily lead to pipe wobbling and displacement during processing, severely impacting processing quality and product qualification rates.

[0003] Furthermore, most existing clamping devices achieve fixation by directly contacting the pipe surface with mechanical components. This rigid contact method is prone to causing irreversible damage such as scratches and abrasions to the pipe surface. This is especially true for precision pipes with high surface quality requirements, such as special pipes in the aerospace field and high-precision pipes used in medical equipment, where the drawbacks of traditional clamping methods are even more pronounced. At the same time, traditional clamping devices struggle to monitor and control the clamping force in real time during the clamping process. Excessive clamping force can damage the pipe, while insufficient clamping force cannot guarantee the pipe's stability, lacking an effective clamping force feedback and adjustment mechanism.

[0004] With the increasing demands of modern industry for pipe processing precision, efficiency, and surface quality, developing an adjustable clamping device that can adapt to different specifications of pipes, is easy to adjust, provides stable clamping, and does not damage the pipe surface has significant practical importance and application value. Utility Model Content

[0005] Based on the above description, this utility model provides an adjustable clamping device to solve the shortcomings of existing auxiliary fixing equipment for pipe processing, which has a simple structure and often uses rigid contact to fix the pipe, which can easily lead to scratches and dents on the pipe surface and make the pipe unusable.

[0006] This utility model is achieved through the following technical solution:

[0007] An adjustable clamping device includes:

[0008] The base is rectangular and horizontally placed on the ground or workbench, with a horizontal groove on the top surface.

[0009] There are two clamping seats, which are symmetrically arranged at both ends of the base and can be adjusted horizontally according to the slide groove. The two clamping seats also have through holes on the opposite side for auxiliary fixing of the pipe.

[0010] The positioning components are provided in two sets, which are respectively arranged on the end faces of the two clamping seats, and both positioning components extend towards the through hole and simultaneously fit and lock with the inner wall and outer wall of the pipe.

[0011] Based on the above technical solution, the present invention can be further improved as follows.

[0012] Furthermore, the clamping base includes a base plate, a bracket is vertically mounted on the top of the base plate, a mounting plate is mounted on the top of the bracket, a positioning plate is vertically mounted on one end of the top surface of the mounting plate, and a through hole is disposed through the center of the end face of the positioning plate.

[0013] Furthermore, the bottom of the base plate protrudes downward and slides into the groove, and the two sides of the base plate are also provided with flanges. The flanges and the top surface of the base are provided with pin holes of the same size and are fixed by inserting pins.

[0014] Furthermore, the positioning component includes an electric telescopic rod disposed at the other end of the top surface of the mounting plate. The output end of the electric telescopic rod is arranged horizontally toward the mounting plate, and a connecting part is detachably installed at the end of the output end of the electric telescopic rod. The connecting part is cylindrical and arranged concentrically with the through hole.

[0015] Furthermore, the outer wall of the connecting part and the inner wall of the through hole are provided with mounting grooves, and an airbag is embedded in the mounting groove. An air injection port is also provided on the end face of the connecting part and the end face of the mounting plate. One end of the air injection port is connected to the airbag through an air pipe, and the other end of the air injection port is connected to an air pump.

[0016] Furthermore, the connecting part and the mounting plate are respectively equipped with air pressure sensors for measuring the air pressure inside the airbag body, and the side wall of the clamping seat is also equipped with a display. The display is electrically connected to the air pressure sensor through wires and displays the monitoring data in real time.

[0017] Furthermore, the surface of the airbag is also provided with an anti-slip pad, which is a rubber pad with a toothed surface.

[0018] Furthermore, the base surface is also provided with markings for measuring distance, and a triangular pointer is correspondingly provided on the side wall of the clamping seat and arranged vertically downwards.

[0019] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0020] This application improves upon existing pipe clamping equipment by using an airbag to simultaneously clamp and fix the inner and outer side walls of the pipe end. This not only allows the airbag to fit tightly against the pipe surface, but also avoids rigid contact between mechanical parts and the pipe, effectively preventing scratches and wear on the pipe surface. Furthermore, the airbag can be adaptively adjusted according to the actual inner and outer diameters of the pipe being fixed, avoiding gaps caused by production errors. This also expands its applicability, allowing it to be used directly on pipes within a certain specification range. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the base and the two clamping seats in this embodiment;

[0022] Figure 2 This is a schematic diagram of the clamping seat in this embodiment;

[0023] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 This is a schematic diagram of the connecting part and the airbag body in this embodiment;

[0025] Labels: 1. Base; 11. Slide groove; 2. Clamping seat; 21. Base plate; 22. Bracket; 23. Mounting plate; 24. Positioning plate; 25. Through hole; 26. Flange; 3. Positioning assembly; 31. Electric telescopic rod; 32. Connecting part; 33. Airbag body; 34. Inflation port. Detailed Implementation

[0026] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0028] Combination Figures 1-4 As shown, an adjustable clamping device includes:

[0029] The base 1 serves as the mounting foundation for the entire clamping device. It is rectangular and has a sliding groove 11 on its top surface.

[0030] There are two clamping bases 2, which are respectively located at both ends of the base 1;

[0031] Positioning component 3 is mounted on clamping base 2 and is used to clamp and fix both ends of the pipe.

[0032] Specifically, this equipment is mainly used for auxiliary processing of pipes, such as drilling and cutting. Therefore, it is necessary to fix both ends of the pipe simultaneously. In addition, since some pipes are thin-walled or non-metallic, their rigidity is relatively low. If rigid components are used to fix them directly, it is very easy to cause irreversible damage such as dents and scratches on the pipe wall. Therefore, in order to avoid this situation, an adjustable flexible clamping structure is used in this embodiment.

[0033] In this embodiment, the clamping seat 2 is composed of a base plate 21, a bracket 22, a mounting plate 23, and a positioning plate 24. The base plate 21 is a bottom support structure with its bottom protruding downward and being movably assembled with the sliding groove 11 on the base 1. The distance between the two clamping seats 2 can be controlled by adjusting the sliding groove 11 so that it can be used for pipes of different lengths.

[0034] In addition, in order to facilitate the control of the spacing and to initially fix the clamping seat 2, a scale mark for measurement should be set on the surface of the base 1, and a vertically downward triangular pointer should be provided on the side wall of the base plate 21 so that the staff can adjust the spacing between the clamping seats 2 according to the pointer.

[0035] Meanwhile, flanges 26 are provided on both sides of the base 1. The flanges 26 and the top surface of the base 1 are provided with pin holes of the same size and are fixed by inserting pins. The inner wall of the pin hole can be additionally provided with a threaded structure, and the end of the pin is equipped with threads to give it a bolt locking effect, thereby strengthening the pin's fixing and pre-tightening effect.

[0036] The mounting plate 23 is arranged horizontally, the positioning plate 24 is perpendicular to its top surface, and a through hole 25 is provided on its end face. The through hole 25 should be larger than the outer diameter of the corresponding pipe material, and the positioning plate 24 should be located at one end close to the center of the base plate 21.

[0037] The positioning component 3 includes an electric telescopic rod 31 disposed on the mounting plate 23. The electric telescopic rod 31 is fixedly mounted on the other end of the mounting plate 23 via a motor mount, and the telescopic end of the electric telescopic rod 31 should extend toward the through hole 25 and be arranged concentrically thereto.

[0038] A connecting part 32 is detachably fixed to the telescopic end of the electric telescopic pole 31 by bolts. The connecting part 32 is a cylindrical structure with multiple mounting grooves arranged around its outer side wall. At the same time, the inner side wall of the through hole 25 is also provided with the same mounting grooves. An airbag 33 is embedded in each of these mounting grooves. An air injection port 34 for supplying air to the airbag 33 is provided on the end face of the connecting part 32 and the end face of the mounting plate 23, respectively. The air injection port 34 is connected to an external air pump through a pipe. The air pump can preferably be JQB030.

[0039] Based on the above structure, when one end of the pipe is inserted into the through hole 25, the electric telescopic rod 31 extends inward, causing the connecting part 32 to extend inward into the pipe. Then the airbag 33 unfolds, and through expansion, the inner and outer sides of the pipe wall are simultaneously adhered. The increased air pressure through glue injection increases the squeezing force, ultimately locking and fixing it.

[0040] During this process, to prevent the airbag 33 from sliding between itself and the side wall of the pipe, an additional anti-slip pad should be applied to the surface of the airbag 33. This anti-slip pad is made of rubber with a continuous toothed surface. By compressing, the friction between the two is increased, thus preventing slippage. Moreover, the uniform pressure and soft surface of the airbag 33 not only ensure that the force on all parts of the pipe wall is consistent, but also avoid rigid contact, ensuring that the pipe surface will not suffer irreversible damage such as scratches or dents, effectively enhancing the protective effect of the pipe. Furthermore, this clamping method can be adapted to the pipe wall and inner diameter of some specific pipes. For example, when producing pipes with different pipe walls but the same inner diameter, there is no need to change the mold, and it can be used directly. For example, when fixing some variable diameter pipes with concentric arrangement at both ends but different inner and outer diameters at both ends, the air pressure of the airbag 33 can be adjusted to adapt the installation without changing the mold.

[0041] In addition, pressure sensors for measuring the internal air pressure of the airbag body 33 should be provided inside the connecting part 32 and the mounting plate 23, respectively. The pressure sensor is preferably BMP280. At the same time, a display is provided on the side wall of the clamping seat 2. The display is electrically connected to the pressure sensor through wires and displays the monitoring data in real time so that the operator can adjust the clamping force. Alternatively, a remote control device can be used to remotely control the pressure sensor, air pump and valve (solenoid valve, preferably XY-015) set on the air injection port 34 through remote control means such as Bluetooth module, so as to automatically adjust the clamping force of the pipe.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the technical solutions of the embodiments of this utility model.

Claims

1. An adjustable clamping device, characterized in that, include: The base (1) is rectangular and horizontally arranged on the ground or workbench, with a horizontal groove (11) on the top surface. There are two clamping seats (2), which are symmetrically arranged at both ends of the base (1) and can be adjusted horizontally according to the slide groove (11). The two clamping seats (2) are also provided with through holes (25) for auxiliary fixing of the pipe on the opposite side. The positioning components (3) are provided in two sets and are respectively arranged on the end faces of the two clamping seats (2). Both positioning components (3) extend towards the through hole (25) and simultaneously fit and lock with the inner and outer walls of the pipe.

2. The adjustable clamping device according to claim 1, characterized in that, The clamping seat (2) includes a base plate (21), a bracket (22) is vertically arranged on the top of the base plate (21), an mounting plate (23) is provided on the top of the bracket (22), a positioning plate (24) is vertically arranged on one end of the top surface of the mounting plate (23), and a through hole (25) is provided through the center of the end face of the positioning plate (24).

3. The adjustable clamping device according to claim 2, characterized in that, The bottom of the base plate (21) protrudes downward and is slidably inserted into the groove (11). The base plate (21) is also provided with flanges (26) on both sides. The flanges (26) and the top surface of the base (1) are provided with pin holes of the same size and are fixed by inserting pins.

4. The adjustable clamping device according to claim 3, characterized in that, The positioning component (3) includes an electric telescopic rod (31) disposed at the other end of the top surface of the mounting plate (23). The output end of the electric telescopic rod (31) is arranged horizontally toward the mounting plate (23), and a connecting part (32) is detachably installed at the output end of the electric telescopic rod (31). The connecting part (32) is cylindrical and arranged concentrically with the through hole (25).

5. The adjustable clamping device according to claim 4, characterized in that, The outer wall of the connecting part (32) and the inner wall of the through hole (25) are provided with mounting grooves. An airbag body (33) is embedded in the mounting groove. An air injection port (34) is also provided on the end face of the connecting part (32) and the end face of the mounting plate (23). One end of the air injection port (34) is connected to the airbag body (33) through an air pipe, and the other end of the air injection port (34) is connected to an air pump.

6. The adjustable clamping device according to claim 5, characterized in that, The connecting part (32) and the mounting plate (23) are respectively provided with air pressure sensors for measuring the air pressure inside the airbag body (33). The side wall of the clamping seat (2) is also provided with a display. The display is electrically connected to the air pressure sensor through wires and displays the monitoring data in real time.

7. The adjustable clamping device according to claim 6, characterized in that, The surface of the airbag (33) is also provided with an anti-slip pad, which is a rubber pad with a toothed surface.

8. The adjustable clamping device according to claim 1, characterized in that, The base (1) is also provided with markings for measuring distance, and the side wall of the clamp (2) is provided with a triangular pointer arranged vertically downwards.

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