Tool clamp for polyethylene pipe

Abstract

The utility model relates to the technical field of pipe machining, in particular to a polyethylene pipe tool clamp which comprises a bottom frame. A frame plate and two supporting plates are fixed to the top of the bottom frame, a concave plate for supporting the pipe body is fixed to the top of the frame plate, and a notch opposite to one end of the concave plate is formed in the top of each supporting plate. According to the tool clamp for the polyethylene pipe, a pipe body is accurately positioned through notches in a concave plate and a supporting plate, the accuracy of the welding position is ensured, the clamping firmness is enhanced through a pushing air cylinder in an opposite-extrusion assembly and an extrusion block on a sliding plate, and the pipe body is prevented from shifting in the welding process; the limiting assembly achieves lateral positioning through a lateral pushing air cylinder, a lateral pushing block and a pin column, the stability is further improved, transverse movement possibly occurring in the welding process is prevented, compared with a traditional clamp, according to the scheme, the operation precision and convenience are improved, the welding quality and the working efficiency are greatly improved, and the production cost is reduced. And a powerful guarantee is provided for efficient and accurate welding of the polyethylene pipe.

Description

Technical Field

[0001] This utility model relates to the field of pipe processing technology, specifically a tooling fixture for polyethylene pipes. Background Technology

[0002] Polyethylene pipes are widely used in water supply and drainage, gas transmission, and chemical fluid transportation due to their excellent corrosion resistance, good flexibility, and high strength-to-weight ratio. However, with the expansion of application areas and the increasing requirements for construction quality, how to efficiently and effectively connect polyethylene pipes has become an important issue in engineering. Welding technology is a common method for connecting polyethylene pipes, and tooling fixtures are one of the key factors in ensuring the quality of welding.

[0003] When the clamp cannot provide sufficient clamping force, the pipe may slip or shift during the welding process. This not only affects the quality of the welding but may also lead to welding failure. If the clamp itself is not designed to be stable enough, or if there is shaking during use, it will also have an adverse effect on the welding of the pipe. For example, it may cause uneven welding surfaces, thereby affecting the sealing performance and connection strength. Utility Model Content

[0004] To achieve the above objectives, this utility model provides the following technical solution: a tooling fixture for polyethylene pipes, including a base frame;

[0005] The top of the base frame is fixed with a frame plate and two sets of support plates. The top of the frame plate is fixed with a concave plate supporting the tube body. The top of the support plate has a notch opposite to one end of the concave plate.

[0006] The base frame is also equipped with extrusion components and limiting components distributed on both sides of the support plate;

[0007] The extrusion assembly includes a base, on which a push cylinder is mounted and a sliding plate is slidably connected. Two sets of extrusion blocks opposite to the notch are mounted on the sliding plate.

[0008] The limiting component includes a vertical plate, on which a side-push cylinder is mounted. A side-push block is fixed to the top end of the side-push cylinder, and a pin that can be inserted into the side lug of the pipe is fixed to one end of the side-push block.

[0009] Furthermore, baffles are fixed to the opposite sides of the two bases.

[0010] Furthermore, an upper cylinder and an upper plate are hingedly mounted on the upright plate. One end of the upper plate is hinged to the piston rod of the upper cylinder, and the other end of the upper plate is fixed with a recess that can be inserted with a pin.

[0011] Furthermore, the support plate is hinged to the side with an ejector cylinder and hinged to the top with a pressure plate. One end of the pressure plate is hinged to the piston rod of the ejector cylinder, and the other end of the pressure plate is located above the notch.

[0012] Furthermore, rubber blocks are installed on both the recess of the support plate and the pressure plate.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] The tooling fixture for this polyethylene pipe uses recesses on the concave plate and support plate to precisely position the pipe body, ensuring the accuracy of the welding position. The push cylinder in the extrusion assembly and the extrusion block on the slide plate enhance the clamping firmness and prevent the pipe body from shifting during the welding process. The limiting assembly achieves lateral positioning through the side push cylinder, side push block and pin, further improving stability and preventing possible lateral movement during the welding process. Compared with traditional fixtures, this solution not only improves the operation accuracy and convenience, but also significantly improves the welding quality and work efficiency, providing a strong guarantee for the efficient and accurate welding of polyethylene pipes. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a three-dimensional structural schematic diagram of the extrusion assembly in this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the limiting component in this utility model;

[0018] Figure 4 This is a three-dimensional structural diagram of the clamping component in this utility model;

[0019] Figure 5 This is a schematic diagram of the pipe structure in this utility model.

[0020] In the diagram: 1. Base frame; 2. Extrusion assembly; 21. Base; 22. Slide plate; 23. Push cylinder; 24. Extrusion block; 25. Baffle; 3. Frame plate; 31. Concave plate; 4. Limiting assembly; 41. Vertical plate; 42. Top cylinder; 43. Top plate; 44. Concave block; 45. Side push cylinder; 46. Side push block; 47. Pin; 51. Support plate; 52. Push cylinder; 53. Pressure plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5 The tooling fixture for polyethylene pipe in this embodiment includes a base frame 1, a frame plate 3 fixed at the center of the base frame 1, and support plates 51, limiting components 4 and extrusion components 2 distributed on both sides of the frame plate 3. A concave plate 31 for supporting and placing the pipe is fixed on the top of the frame plate 3, and a notch is formed on the top of the support plate 51 that is opposite to the concave surface of the concave plate 31.

[0023] In the above structure, while welding the two sets of pipes, the side lugs are first attached to the outside of the pipes at appropriate positions. Then, the two sets of pipes are supported and limited by the concave plate and two sets of support plates. After placement, the extrusion assembly operates, pushing the corresponding pipes to make the welded ends of the two pipes fit more tightly and improve the clamping firmness of the pipes. At this time, the side lugs will be located in the limiting assembly. By limiting the side lugs through the limiting assembly, the lateral movement of the pipe body can be limited, thereby effectively preventing the pipes from shifting during the welding process and affecting the welding quality.

[0024] like Figure 1 and 4 ,by Figure 4 As shown, a push-out cylinder 52 is hinged to the front of the support plate 51, and a pressure plate 53 is hinged to the top. One end of the pressure plate 53 is located above the recess in the support plate 51, and the other end is hinged to the piston rod of the push-out cylinder 52. By pushing the pressure plate up with the push-out cylinder, one end of the pressure plate moves downward into the recess, thus pressing down on the pipe in the recess to improve its stability.

[0025] Rubber blocks are fixed to three sides of the inner recess of the support plate 51 and the bottom of the pressure plate 53. During clamping, the rubber blocks can act as a buffer to prevent the plates from being directly squeezed against the pipe and causing damage. At the same time, the rubber blocks can also increase the friction to a certain extent.

[0026] like Figure 2 The extrusion assembly 2 includes two sets of bases 21 fixed on the base frame 1. A push cylinder 23 is mounted on the top of the base 21, and a slide plate 22 is slidably connected and fixed to the piston rod of the push cylinder 23. The slide plate 22 is T-shaped, and two sets of extrusion blocks 24 are mounted on the protruding plate of the slide plate 22. By pushing the slide plate with the push cylinder, the extrusion blocks will be driven to come into contact with and close to both ends of the pipe, thus enabling the two sets of pipe end welding positions to be tightly attached and positioned.

[0027] Each of the two sets of bases 21 has a baffle 25 fixed on one side facing each other, and anti-collision blocks are fixed on the opposite sides of the baffle 25 and the slide 22. The baffles can limit the slide and prevent it from separating from the base, while the anti-collision blocks can also act as a buffer to prevent the slide from colliding directly with the baffle and causing noise.

[0028] like Figure 3 The limiting component 4 includes two sets of upright plates 41 fixed on the base 1. The front of the upright plate 41 is an inclined surface, and a side-push cylinder 45 is installed on the inclined surface. A side-push block 46 is fixed to the ejector end of the side-push cylinder 45. A pin 47 is installed at the head end of the side-push block 46. An upper-push cylinder 42 is hinged to the back of the upright plate 41. The piston rod of the upper-push cylinder 42 is hinged to an upper-push plate 43. The upper-push plate 43 is also hinged to the upright plate 41. The upper-push plate 43 is L-shaped, and the protruding end is inclined and opposite to the side-push block 46. A concave block 44 is fixed to the head end of the upper-push plate 43. The pin 47 can pass through the concave surface of the concave block 44. Once the two sets of pipes are positioned, the side lugs that will be bonded to the pipes will be located between the concave block and the pin. Therefore, by operating the top cylinder and the side push cylinder, the side push block and the top plate will be driven to move, which can clamp and fix the side lugs to prevent the pipes from rotating. At the same time, the concave block will also be in contact with the side lugs, and the pin will pass through the side lugs and the concave block. Therefore, it can prevent the pipes from moving laterally while preventing rotation.

[0029] The working principle of the above embodiments is as follows:

[0030] First, attach the edge lugs to the appropriate positions on the outside of the pipe. Then, support plates and concave plates support the two sets of pipes. Push cylinders push slide plates, causing the extrusion blocks to clamp tightly against the corresponding pipes. The edge lugs are also located at the limiting components. At this time, the side push cylinders and top push cylinders operate simultaneously, thereby driving the concave plates and side push blocks to clamp and fix the edge lugs. At the same time, pins pass through the edge lugs and concave plates, thereby restricting the rotation and lateral movement of the pipes. Finally, the push cylinder drives the pressure plate to press the pipes tightly. Therefore, it can effectively improve the stability and quality of the pipe welding process and avoid the welding operation from being affected by shaking and displacement.

[0031] The entire workflow is now complete, and anything not described in detail in this specification is existing technology known to those skilled in the art.

[0032] It should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tooling fixture for polyethylene pipes, characterized in that: Including the base frame (1); The top of the base frame (1) is fixed with a frame plate (3) and two sets of support plates (51). The top of the frame plate (3) is fixed with a concave plate (31) supporting the tube body. The top of the support plate (51) has a notch opposite to one end of the concave plate (31). The base frame (1) is also equipped with extrusion components (2) and limiting components (4) distributed on both sides of the support plate (51); The extrusion assembly (2) includes a base (21), on which a push cylinder (23) is mounted and a slide plate (22) is slidably connected. Two sets of extrusion blocks (24) opposite to the notch are mounted on the slide plate (22). The limiting assembly (4) includes a vertical plate (41), on which a side-push cylinder (45) is mounted. A side-push block (46) is fixed at the top end of the side-push cylinder (45), and a pin (47) that can be inserted into the side lug of the pipe is fixed at one end of the side-push block (46).

2. The tooling fixture for polyethylene pipes according to claim 1, characterized in that: A baffle (25) is fixed to one side of each of the two bases (21).

3. The tooling fixture for polyethylene pipes according to claim 1, characterized in that: The upright plate (41) is also hinged to an upper cylinder (42) and an upper plate (43). One end of the upper plate (43) is hinged to the piston rod of the upper cylinder (42), and the other end of the upper plate (43) is fixed with a recess (44) that can pass through the pin (47).

4. The tooling fixture for polyethylene pipes according to claim 3, characterized in that: The support plate (51) is hinged to the side with an ejector cylinder (52) and to the top with a pressure plate (53). One end of the pressure plate (53) is hinged to the piston rod of the ejector cylinder (52), and the other end of the pressure plate (53) is located above the notch.

5. The tooling fixture for polyethylene pipes according to claim 4, characterized in that: Rubber blocks are installed on the notch of the support plate (51) and the pressure plate (53).

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