Automatic centering and clamping fixture of PE pipe hot melt welding machine

Abstract

The utility model provides a kind of automatic centering and clamping fixture of PE tubular product hot melting welding machine, including base and top cover, base and top cover are provided with tubular product between, tubular product includes tube body one and tube body two.The utility model is through the cooperation of the clamping assembly of clamping mechanism two sides, namely through servo motor drives two -way screw rod rotation, to drive the threaded rod sleeve of two sides to move to middle, in turn through the rotary connection between connecting arm and connecting rod, drive the clamping pad of two sides to adhere to tubular product, then again through the electric telescopic rod of two sides drive outer sleeve to close to middle, outer sleeve is driven the bottom side of two sides clamping pad and tubular product adheres tightly by the rotary connection with cross bar, complete fixed clamping, this setting is replaced by bolt fixation by mechanical mechanism, when upper pipe and lower pipe are more convenient, and make this setting can be self-adapting different size tubular product, and more strong adaptability.

Description

Technical Field

[0001] This utility model belongs to the technical field, and more specifically, it relates to an automatic centering and clamping fixture for a PE pipe hot melt welding machine. Background Technology

[0002] A PE pipe hot-melt butt welding machine authorized in China (announcement number CN222946222U) uses a blower to extract air from the smoke extraction pipe via the connecting hose and the extraction hose. This creates suction in the smoke extraction pipe, effectively adsorbing the harmful fumes generated during pipe hot-melt welding, thus preventing operators from inhaling them and causing health hazards. A diverter pipe allows for easy airflow distribution, ensuring uniform suction in the smoke extraction pipe. Pushing the second limit plate moves the adjusting crossbar within the adjusting support rod, and pulling the adjusting support rod allows it to slide along the welding frame, facilitating adjustment of the smoke extraction pipe's adsorption position and improving adsorption efficiency. Rotating the adjusting stud causes the extrusion plate to press the anti-slip pad against the surface of the adjusting crossbar, facilitating positioning between the adjusting crossbar and the adjusting support rod. However, this equipment still has shortcomings in use. For example, when installing and fixing pipes, the equipment uses limit clamps to align and fix the pipe body. That is, the upper limit clamp and the lower limit clamp work together to fix the pipe body between them. Each set of upper limit clamps and lower limit clamps is fixed by bolts and screw holes. Although this method can play a role in stable fixing and clamping, it is more troublesome in subsequent pipe installation and disassembly. It requires the staff to unlock the threaded screw holes one by one before the pipe can be installed, which is time-consuming and labor-intensive. At the same time, this clamping method is not convenient for fixing and clamping pipes of different sizes, and its adaptability is limited, which has certain limitations.

[0003] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided an automatic centering and clamping fixture for a PE pipe hot melt welding machine, in order to achieve a more practical purpose. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides an automatic centering and clamping fixture for a PE pipe hot melt welding machine, which is achieved by the following specific technical means: An automatic centering and clamping fixture for a PE pipe hot melt welding machine includes a base and a top cover. A pipe is disposed between the base and the top cover. The pipe includes a pipe body one and a pipe body two. A support frame for supporting the pipe is disposed below the pipe body one and the pipe body two. A clamping mechanism for fixing and holding is disposed above the pipe body one and the pipe body two. The clamping mechanism consists of two sets of clamping components symmetrically arranged on both sides of the pipe body one and the pipe body two. The pipe is fixed and clamped from both sides by the two sets of clamping components. The clamping is stable and facilitates the installation and installation of the pipe. It also has a certain adaptability and is suitable for pipes of different sizes.

[0005] Preferably, the clamping mechanism includes a servo motor, one side of the inner wall of the servo motor top cover, and a bidirectional lead screw is installed at the output end of the servo motor. One end of the bidirectional lead screw is rotatably connected to one side of the inner wall of the top cover, and a connector is rotatably installed on the outer wall of the bidirectional lead screw. The top of the connector is fixed to the top cover.

[0006] Preferably, the clamping mechanism further includes two sets of clamping components, which are respectively disposed on both sides of the pipe. Each clamping component includes a threaded rod sleeve, which is threadedly installed on the outer wall of the bidirectional lead screw. A connecting arm is installed at the bottom of the threaded rod sleeve, and a clamping pad is provided at the bottom of the connecting arm.

[0007] Preferably, one side of the clamping pad is fitted to the pipe, and two mounting seats are installed on the other side of the clamping pad. A connecting rod is installed on the inner side of the two mounting seats. An outer tube sleeve is rotatably installed on the outer wall of the connecting rod, and one side of the outer tube sleeve is fixed to the connecting arm.

[0008] Preferably, the clamping assembly further includes an electric telescopic rod, the output end of which is fitted with an outer sleeve, and a crossbar is rotatably mounted on the inner wall of the outer sleeve. Both ends of the crossbar are fitted with mounting blocks, and one side of each mounting block is fixed to the clamping pad.

[0009] Preferably, a set of sliding grooves is provided on both sides of the base, and the two sides of the two support frames are slidably connected to the inner wall of the corresponding sliding groove.

[0010] Preferably, a connecting plate is installed at the bottom of both support frames, a guide tube is installed on one side of the bottom of the connecting plate, a guide rod is slidably installed on the inner wall of the guide tube, the bottom of the guide rod is fixed to the base, a telescopic cylinder is installed on the upper surface of the base, and the output end of the telescopic cylinder is fixed to the bottom of the connecting plate.

[0011] Preferably, the threaded rod sleeves in the two sets of clamping assemblies are respectively threaded onto the threads on the corresponding side of the bidirectional lead screw, and both clamping pads are made of rubber material.

[0012] Compared with the prior art, the present invention has the following beneficial effects: This invention utilizes the combined use of clamping components on both sides of the clamping mechanism. A servo motor drives a bidirectional lead screw to rotate, causing the threaded sleeves on both sides to move towards the center. Then, through the rotational connection between the connecting arm and the connecting rod, the clamping pads on both sides adhere to the pipe. Next, the electric telescopic rods on both sides move the outer sleeve towards the center. The outer sleeve, through its rotational connection with the crossbar, causes the bottom sides of the clamping pads on both sides to adhere tightly to the pipe, completing the fixed clamping. This design replaces bolt fixing with a mechanical mechanism, making it more convenient for both loading and unloading pipes and allowing it to adapt to pipes of different sizes, thus enhancing its versatility. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of the automatic centering and clamping fixture of a PE pipe hot melt welding machine according to this utility model.

[0014] Figure 2 This is a cross-sectional schematic diagram of the automatic centering and clamping fixture of a PE pipe hot melt welding machine according to this utility model.

[0015] Figure 3 This is a utility model Figure 2 Enlarged structural diagrams of points A and B in the middle.

[0016] Figure 4 This is a schematic diagram of an automatic centering and clamping fixture for a PE pipe hot melt welding machine according to this utility model.

[0017] In the diagram, the correspondence between component names and drawing numbers is as follows: 1. Base; 2. Top cover; 3. Tube body one; 4. Tube body two; 5. Support frame; 6. Connecting plate; 7. Telescopic cylinder; 8. Slide groove; 9. Servo motor; 10. Two-way lead screw; 11. Threaded rod sleeve; 12. Connecting arm; 13. Outer tube sleeve; 14. Mounting seat; 15. Connecting rod; 16. Clamping pad; 17. Connecting piece; 18. Electric telescopic rod; 19. Outer sleeve; 20. Crossbar; 21. Mounting block; 22. Guide tube; 23. Guide rod. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Example

[0019] As attached Figure 1 To be continued Figure 4 As shown: This utility model provides an automatic centering and clamping fixture for a PE pipe hot melt welding machine, including a base 1 and a top cover 2. A pipe is disposed between the base 1 and the top cover 2. The pipe includes a first pipe body 3 and a second pipe body 4. A support frame 5 for supporting the pipe is disposed below the first pipe body 3 and the second pipe body 4. A clamping mechanism for fixing and holding the pipe is disposed above the first pipe body 3 and the second pipe body 4. The clamping mechanism consists of two sets of clamping components symmetrically arranged on both sides of the first pipe body 3 and the second pipe body 4. The pipe is fixed from both sides by the two sets of clamping components. The clamping mechanism provides stable and convenient clamping for loading and unloading pipes, and is adaptable to pipes of different sizes. It includes a servo motor 9, with a bidirectional lead screw 10 mounted on one side of the inner wall of the top cover 2. One end of the bidirectional lead screw 10 is rotatably connected to one side of the inner wall of the top cover 2. A connector 17 is rotatably mounted on the outer wall of the bidirectional lead screw 10, with its top fixed to the top cover 2. The clamping mechanism also includes two sets of clamping assemblies, respectively located on both sides of the pipe. The clamping assembly includes a threaded rod sleeve 11, which is threaded onto the outer wall of the bidirectional lead screw 10. A connecting arm 12 is mounted on the bottom of the threaded rod sleeve 11, and a clamping pad 16 is provided at the bottom of the connecting arm 12. One side of the clamping pad 16 is fitted against the pipe, and two mounting seats 14 are mounted on the other side of the clamping pad 16. A connecting rod 15 is mounted on the inner side of the two mounting seats 14. An outer tube sleeve 13 is rotatably mounted on the outer wall of the connecting rod 15, and one side of the outer tube sleeve 13 is fixed to the connecting arm 12. The clamping assembly also includes an electric telescopic rod 18, with an outer sleeve 19 mounted on the output end of the electric telescopic rod 18. A crossbar 20 is rotatably mounted on the inner wall of the outer sleeve 19, and mounting blocks 21 are mounted on both ends of the crossbar 20. One side of 21 is fixed to the clamping pad 16. Through the cooperation of the clamping components on both sides of the clamping mechanism, that is, the servo motor 9 drives the bidirectional lead screw 10 to rotate, thereby driving the threaded rod sleeves 11 on both sides to move towards the middle. Then, through the rotational connection between the connecting arm 12 and the connecting rod 15, the clamping pads 16 on both sides are driven to fit against the pipe. Then, the electric telescopic rods 18 on both sides drive the outer sleeve 19 to move towards the middle. The outer sleeve 19, through the rotational connection with the crossbar 20, drives the bottom side of the clamping pads 16 on both sides to fit tightly against the pipe, completing the fixed clamping. This setting replaces bolt fixing with a mechanical mechanism, which is more convenient when installing and installing pipes, and makes this setting adaptable to pipes of different sizes, making it more adaptable.

[0020] The base 1 has a set of sliding grooves 8 on both sides. The two support frames 5 are slidably connected to the inner wall of the corresponding sliding groove 8 on both sides. The sliding grooves 8 make it easy for the support frames 5 on both sides to slide up and down inside the sliding grooves 8.

[0021] The bottom of the two support frames 5 is equipped with a connecting plate 6. A guide tube 22 is installed on one side of the bottom of the connecting plate 6. A guide rod 23 is slidably installed on the inner wall of the guide tube 22. The bottom of the guide rod 23 is fixed to the base 1. A telescopic cylinder 7 is installed on the upper surface of the base 1. The output end of the telescopic cylinder 7 is fixed to the bottom of the connecting plate 6. By fixing the connecting plate 6 to the two support frames 5 and driving the telescopic cylinder 7 to move the connecting plate 6 up and down, the support frame 5 can be moved up and down inside the slide groove 8. This setting can adjust the height position of the support frame 5. By fine-tuning the support frame 5, it is convenient for workers to put on and put off the pipe, making the work more convenient.

[0022] Among them, the threaded rod sleeves 11 in the two sets of clamping assemblies are respectively threaded on the corresponding side of the threaded rod 10, and both clamping pads 16 are made of rubber material. Using rubber material for the clamping pads 16 can protect the pipe from wear and damage.

[0023] The working principle of this embodiment is as follows: The pipe body 3 and pipe body 4 to be welded are placed on the support frame 5. The support frame 5 is connected to the telescopic cylinder 7 via the connecting plate 6. When the telescopic cylinder 7 is activated, it drives the connecting plate 6 to slide up and down along the guide rod 23 within the guide tube 22, thereby adjusting the height of the support frame 5. The two sides of the support frame 5 slide within the sliding grooves 8 of the base 1, achieving smooth lifting and lowering. This adjustment facilitates the loading and unloading of pipes by the operator and allows for initial alignment of the pipe material. The clamping mechanism is driven by the servo motor 9. When the servo motor 9 is activated, it drives the bidirectional lead screw 10 to rotate. The bidirectional lead screw 10 is fixed to the top cover 2 via the connecting piece 17 to ensure stability. Two sets of threaded rod sleeves 11 on the bidirectional lead screw 10 are threadedly connected to the left and right threaded sections of the bidirectional lead screw 10, respectively. Therefore, when the bidirectional lead screw 10 rotates, the two sets of threaded rod sleeves 11 move towards the center. When the threaded rod sleeves 11 move towards the center, they push the clamping pad 16 closer to the pipe material via the connecting arm 12. The connecting arm 12 is connected to the clamping pad 16 via a connecting rod 15 and an outer sleeve 13. The connecting rod 15 is mounted on mounting bases 14 at both ends and can rotate within the outer sleeve 13, allowing the clamping pad 16 to adapt to the pipe surface. At this point, the clamping pad 16 initially adheres to both sides of the pipe, achieving initial centering and clamping. After initial clamping, the electric telescopic rods 18 on both sides are activated, pushing the outer sleeve 19 towards the pipe. The outer sleeve 19 is rotatably connected to the crossbar 20, and both ends of the crossbar 20 are fixed to the clamping pad 16 via mounting blocks 21. The thrust of the electric telescopic rod 18 further presses the bottom side of the clamping pad 16 against the pipe, forming a combined force with the initial clamping to ensure that pipe body 3 and pipe body 4 are firmly fixed and automatically centered. Because the clamping pad 16 is made of rubber, it is elastic and can adapt to PE pipes of different diameters, preventing wear. The entire clamping process is completed automatically by a mechanical mechanism, eliminating the need for manual bolt fixing and improving efficiency. After welding, the servo motor 9 reverses, driving the bidirectional lead screw 10 to move the threaded sleeve 11 outward, while the electric telescopic rod 18 retracts, and the clamping pad 16 releases the pipe. The telescopic cylinder 7 can lower the support frame 5 for easier pipe lowering.

[0024] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An automatic centering and clamping fixture for a PE pipe hot melt welding machine, comprising a base (1) and a top cover (2), characterized in that: A pipe is provided between the base (1) and the top cover (2). The pipe includes a first pipe body (3) and a second pipe body (4). A support frame (5) for supporting the pipe is provided below the first pipe body (3) and the second pipe body (4). A clamping mechanism for fixing and holding is provided above the first pipe body (3) and the second pipe body (4). The clamping mechanism is divided into two sets of clamping components, which are symmetrically arranged on both sides of the first pipe body (3) and the second pipe body (4). The pipe is fixed and clamped from both sides by the two sets of clamping components. The clamping is stable and convenient for the upper and lower pipes. It also has a certain adaptability and is suitable for pipes of different sizes.

2. The automatic centering and clamping fixture of the PE pipe hot melt welding machine as described in claim 1, characterized in that: The clamping mechanism includes a servo motor (9), which is mounted on one side of the inner wall of the top cover (2). A bidirectional lead screw (10) is installed at the output end of the servo motor (9). One end of the bidirectional lead screw (10) is rotatably connected to one side of the inner wall of the top cover (2). A connector (17) is also rotatably installed on the outer wall of the bidirectional lead screw (10). The top of the connector (17) is fixed to the top cover (2).

3. The automatic centering and clamping fixture of the PE pipe hot melt welding machine as described in claim 2, characterized in that: The clamping mechanism further includes two sets of clamping components, which are respectively arranged on both sides of the pipe. Each clamping component includes a threaded rod sleeve (11), which is threaded onto the outer wall of the bidirectional screw (10). A connecting arm (12) is installed at the bottom of the threaded rod sleeve (11), and a clamping pad (16) is provided at the bottom of the connecting arm (12).

4. The automatic centering and clamping fixture of the PE pipe hot melt welding machine as described in claim 3, characterized in that: One side of the clamping pad (16) is fitted to the pipe, and two mounting seats (14) are installed on the other side of the clamping pad (16). A connecting rod (15) is installed on the inner side of the two mounting seats (14). An outer tube sleeve (13) is rotatably installed on the outer wall of the connecting rod (15). One side of the outer tube sleeve (13) is fixed to the connecting arm (12).

5. The automatic centering and clamping fixture of the PE pipe hot melt welding machine as described in claim 3, characterized in that: The clamping assembly also includes an electric telescopic rod (18), the output end of which is fitted with an outer sleeve (19), and a crossbar (20) is rotatably mounted on the inner wall of the outer sleeve (19). Mounting blocks (21) are mounted on both ends of the crossbar (20), and one side of each of the two mounting blocks (21) is fixed to the clamping pad (16).

6. The automatic centering and clamping fixture of the PE pipe hot melt welding machine as described in claim 1, characterized in that: The base (1) has a set of sliding grooves (8) on both sides, and the two support frames (5) are slidably connected to the inner wall of the corresponding sliding groove (8) on both sides.

7. The automatic centering and clamping fixture of the PE pipe hot melt welding machine as described in claim 1, characterized in that: A connecting plate (6) is installed at the bottom of both support frames (5). A guide tube (22) is installed on one side of the bottom of the connecting plate (6). A guide rod (23) is slidably installed on the inner wall of the guide tube (22). The bottom of the guide rod (23) is fixed to the base (1). A telescopic cylinder (7) is installed on the upper surface of the base (1). The output end of the telescopic cylinder (7) is fixed to the bottom of the connecting plate (6).

8. The automatic centering and clamping fixture of the PE pipe hot melt welding machine as described in claim 3, characterized in that: The threaded rod sleeves (11) in the two sets of clamping assemblies are respectively threaded onto the threads on the corresponding side of the bidirectional lead screw (10), and both clamping pads (16) are made of rubber material.

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