A positioning and clamping device for welding corrugated diaphragm

Abstract

The utility model relates to corrugated pipe welding technical field discloses a kind of positioning and clamping device for welding corrugated pipe diaphragm, including base, the top left side of base is provided with clamping mechanism, the top of clamping mechanism is uniformly provided with rotating mechanism, the clamping mechanism includes two clamping cylinders, the bottom of two clamping cylinders is arranged in the top left side of base, the left side of two clamping cylinders is uniformly provided with fixed component, the left side of two clamping cylinders is fixedly connected with telescopic link, the right side of telescopic link is fixedly connected with connecting block, the top of connecting block is fixedly connected with connecting plate one. In the utility model, by setting the clamping cylinder of contraction state, sufficient operating space is reserved for diaphragm placement, improves loading convenience, the sliding block of component moving assembly cooperates with the clamping groove, reduces friction resistance while ensuring movement trajectory, improves the smoothness of clamping action.

Description

Technical Field

[0001] This utility model relates to the field of corrugated pipe welding technology, and in particular to a device for positioning and clamping diaphragms for welding corrugated pipes. Background Technology

[0002] Welded bellows, as a type of elastic element with high flexibility and high airtightness, are widely used in aerospace, petrochemical, and high-end equipment fields such as precision instruments. They are made by connecting multiple diaphragms sequentially through a welding process.

[0003] Traditional welding bellows diaphragm positioning and clamping devices mainly consist of a base, a fixed positioning block, a movable pressure block, and a manual locking mechanism. The operator first places the diaphragm to be welded on the positioning plane of the base, then uses the fixed positioning block to initially position the outer circumference or inner hole of the diaphragm. Next, the movable pressure block is pushed to fit against the diaphragm surface, and the manual locking mechanism is rotated to press the movable pressure block firmly against the diaphragm. This traditional device has significant drawbacks. The manual locking method relies on the operator's experience to control the clamping force, which can lead to problems such as clamping too loosely, causing diaphragm displacement, or clamping too tightly, causing diaphragm deformation. The fixed positioning block has poor position adjustment flexibility, making it difficult to adapt to the positioning requirements of different diaphragm specifications. When changing the diaphragm model, the positioning components must be disassembled and replaced, making the operation cumbersome and time-consuming.

[0004] To address the shortcomings of traditional devices, existing technologies have improved the positioning and clamping structure by using pneumatic or hydraulic control to automatically adjust the clamping force. The fixed positioning block has also been optimized into a sliding positioning component. However, in actual use, problems with clamping still exist. When there are slight deviations in diaphragm thickness, the stroke of the pneumatic or hydraulic clamping mechanism is difficult to adjust, resulting in some diaphragms being clamped too loosely or too tightly. Gaps may appear in the sliding positioning component after long-term use, causing displacement deviations even with slight external forces during positioning. This makes it impossible to guarantee the coaxiality and flatness requirements between diaphragms, affecting the stability of welding quality. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a positioning and clamping device for welding bellows diaphragms, aiming to improve the problem that the existing technology cannot better position and clamp the processed products.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a positioning and clamping device for welding corrugated pipe diaphragms, comprising a base, wherein clamping mechanisms are provided on the left and right sides of the top of the base, and a rotating mechanism is provided on the top of each clamping mechanism;

[0007] The clamping mechanism includes two clamping cylinders. The bottoms of the two clamping cylinders are located on the top left and right sides of the base. A fixing component is provided on the left side of each of the two clamping cylinders. A telescopic rod is fixedly connected to the left side of each of the two clamping cylinders. A connecting block is fixedly connected to the right side of each telescopic rod. A connecting plate is fixedly connected to the top of each connecting block. A connecting component is provided at the bottom of each connecting block. A connecting plate is provided at the top of the connecting plate. A positioning component is provided at the top of the base.

[0008] As a further description of the above technical solution:

[0009] The rotating mechanism includes two receiving plates. The bottom of the two receiving plates is fixedly connected to the top of the connecting plate. A fixing plate is fixedly connected to the left side of each of the two receiving plates. A motor is fixedly connected to the top of each fixing plate. A circular block is fixedly connected to the right side of each receiving plate through the output end of the motor. A rotating shaft is rotatably connected to the right side of each circular block. An elastic concave plate is fixedly connected to the right side of each rotating shaft.

[0010] As a further description of the above technical solution:

[0011] The fixing assembly includes an L-shaped stabilizer, the bottom of which is fixedly connected to the top left and right sides of the base, and screws are fixedly connected inside the L-shaped stabilizer.

[0012] As a further description of the above technical solution:

[0013] The system includes a second connecting plate, the bottom of which is fixedly connected to the top left and right sides of the base. The inside of the second connecting plate has a slot, and the top of the second connecting plate is slidably connected to a slider.

[0014] As a further description of the above technical solution:

[0015] The connecting assembly includes two cylinders, the bottom of which is fixedly connected to the top of the connecting plate, and a rotating plate is fixedly connected between the two adjacent cylinders. Circular grooves are opened at the left and right ends of the cylinders.

[0016] As a further description of the above technical solution:

[0017] The positioning component includes an irregularly shaped triangular block, which is located in the middle of the base. A limit ring is fixedly connected to the top of the irregularly shaped triangular block, and a rotating column is rotatably connected to the middle of the irregularly shaped triangular block.

[0018] As a further description of the above technical solution:

[0019] A cooling tank is fixedly connected to the front side of the irregular triangular block, and a spray head is fixedly connected to the right side of the cooling tank.

[0020] As a further description of the above technical solution:

[0021] A protruding plate is fixedly connected to the bottom of the receiving plate, and a temperature sensor is fixedly connected to the front side of the protruding plate.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, by setting a clamping cylinder in a retracted state, sufficient operating space is reserved for placing the diaphragm, improving the convenience of feeding. The slider of the component moving assembly cooperates with the slot to reduce frictional resistance while ensuring the movement trajectory, improving the smoothness of the clamping action. The component combines the rotation of the cylinder and the groove for fine adjustment, so that the rotating plate is closely attached to the surface of the diaphragm. With the symmetrical clamping force on both sides, the diaphragm is firmly fixed, solving the displacement problem during welding and improving the processing accuracy and product quality.

[0024] 2. In this utility model, a stable assembly structure is formed by using two supporting plates as the basic frame and fixing them to the connecting plate. This avoids operational deviations caused by frame loosening during rotation. The fixing plate provides a reliable mounting platform for the motor, ensuring that the power source is firmly installed. The power transmission structure between the round block and the rotating shaft realizes efficient transmission of motor power, driving the elastic concave plate to accurately execute the rotation action. The elastic concave plate can firmly fix the object to be rotated. With the stable drive of the motor, it can be adjusted to a preset angle and remain stable, significantly improving the accuracy and reliability of the rotation operation. Attached Figure Description

[0025] Figure 1 This is a perspective view of a positioning and clamping device for welding bellows diaphragms proposed in this utility model;

[0026] Figure 2 This is a front view of a positioning and clamping device for welding bellows diaphragms proposed in this utility model;

[0027] Figure 3 This is a partial structural exploded view of a connecting plate for a positioning and clamping device for welding corrugated pipe diaphragms proposed in this utility model;

[0028] Figure 4 This is a partial structural diagram of a receiving plate for a positioning and clamping device for welding corrugated pipe diaphragms, as proposed in this utility model.

[0029] Figure 5 This is a top view of a temperature sensor for positioning and clamping a diaphragm for welding bellows, as proposed in this utility model.

[0030] Legend:

[0031] 1. Base; 2. Clamping mechanism; 201. Clamping cylinder; 202. Fixing component; 2021. L-shaped stabilizer; 2022. Screw; 203. Telescopic rod; 204. Connecting block; 205. Connecting plate one; 206. Moving component; 2061. Connecting plate two; 2062. Slot; 2063. Slider; 207. Connecting component; 2071. Cylinder; 2072. Rotating plate; 2073. Circular groove; 208. Positioning component; 2081. Irregular triangular block; 2082. Rotating column; 2083. Limiting ring; 3. Rotating mechanism; 301. Support plate; 302. Fixing plate; 303. Motor; 304. Circular block; 305. Rotating shaft; 306. Elastic concave plate; 4. Cooling tank; 5. Spray head; 6. Convex plate; 7. Temperature sensor. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0033] Reference Figure 1 , Figure 2 and Figure 3 The present invention provides an embodiment of a positioning and clamping device for welding corrugated pipe diaphragms, comprising a base 1, with clamping mechanisms 2 provided on the top left and right sides of the base 1. The clamping mechanisms 2 are used to clamp and fix the welding corrugated pipe diaphragms to prevent displacement during processing. The top of each clamping mechanism 2 is provided with a rotating mechanism 3, which can drive the clamping mechanism 2 and the clamped diaphragm to rotate and adjust to adapt to different welding angle requirements.

[0034] A positioning and clamping device for welding corrugated pipe diaphragms includes a base 1, which provides stable installation and support for the entire device. A clamping mechanism 2 includes two clamping cylinders 201, which provide power output for the clamping action. The bottoms of the two clamping cylinders 201 are located on the top left and right sides of the base 1. A fixing component 202 is provided on the left side of each clamping cylinder 201 to enhance the stability of the installation. A telescopic rod 203 is fixedly connected to the left side of each clamping cylinder 201. The telescopic rod 203 can extend and retract under the drive of the clamping cylinder 201 to achieve the clamping action. A connecting block 204 is fixedly connected to the right side of each telescopic rod 203, serving as a connecting... In conjunction with the telescopic rod 203 and other components, the top of each connecting block 204 is fixedly connected to a connecting plate 205. The connecting plate 205 is used to support the connecting component 207 and transmit force. The bottom of each connecting block 204 is provided with a component moving component 206. The moving component 206 can assist the connecting block 204 in achieving stable support or coordinated action. The top of the connecting plate 205 is provided with a connecting component 207. The connecting component 207 is used to enhance the tightness of contact with the diaphragm to improve the clamping effect. The top of the base 1 is provided with a positioning component 208. The positioning component 208 is used to position the diaphragm to ensure accurate processing position. The rotating mechanism 3 can drive the clamping mechanism 2 and the clamped diaphragm to rotate and adjust to adapt to different welding angle requirements.

[0035] Specifically, a positioning and clamping device for welding corrugated pipe diaphragms includes a base 1. Clamping mechanisms 2 are symmetrically arranged on the left and right sides of the top of the base 1. The clamping mechanisms 2 are used to clamp and fix the welding corrugated pipe diaphragms to prevent the diaphragms from shifting during processing and to ensure processing stability. A rotating mechanism 3 is installed on the top of each clamping mechanism. The rotating mechanism 3 is connected to the clamping mechanism 2 and can drive the clamping mechanism 2 and the clamped diaphragms to rotate synchronously. By adjusting the rotation angle, it can adapt to different welding angle requirements and realize the positioning of the diaphragm for multi-angle welding operations.

[0036] The welding corrugated pipe diaphragm positioning and clamping device uses base 1 as the basic support structure, providing a stable device for the entire device. The core clamping mechanism 2 includes two clamping cylinders 201, which are respectively installed on the left and right sides of the top of base 1, providing power output for the clamping action. Each clamping cylinder 201 is equipped with a fixing component 202 on the left side to enhance the stability of the cylinder installation. The left side of the clamping cylinder 201 is connected to a telescopic rod 203, which can extend and retract under the drive of the cylinder to achieve the clamping action. The right side of the telescopic rod 203 is fixedly connected to a connecting block 204, the top of which is connected to a connecting plate 205, and the bottom is equipped with an auxiliary support component moving component 206. The top of the connecting plate 205 is equipped with a connecting component 207 to enhance the tightness of contact with the diaphragm and improve the clamping effect. The top of base 1 is also equipped with a positioning component 208 to ensure the processing position of the diaphragm. The device is equipped with a rotating mechanism 3, which can drive the clamping mechanism and the diaphragm to rotate and adjust to adapt to different welding angle requirements.

[0037] Reference Figure 1 , Figure 2 and Figure 4 The rotating mechanism 3 includes two support plates 301 for mounting and supporting other components of the rotating mechanism 3. The bottom of the two support plates 301 is fixedly connected to the top of the connecting plate 205, realizing the fixed connection between the rotating mechanism 3 and the connecting plate 205. The left side of each of the two support plates 301 is fixedly connected to a fixing plate 302 to provide installation conditions for the motor 303. The top of each fixing plate 302 is fixedly connected to a motor 303 to provide power output for the rotation of the rotating mechanism 3. The output end of the motor 303 passes through the right side of the support plate 301 and is fixedly connected to a circular block 304 to transmit the power of the motor 303 and connect to the rotating shaft 305. The right side of each circular block 304 is rotatably connected to the rotating shaft 305 to drive the elastic concave plate 306 to rotate. The right side of each rotating shaft 305 is fixedly connected to the elastic concave plate 306 to receive and fix the rotated object.

[0038] Specifically, the rotating mechanism 3 is based on two support plates 301. The bottom of the two support plates 301 is fixedly connected to the top of the connecting plate 205 to form a stable assembly structure, ensuring a reliable rigid connection between the rotating mechanism 3 and the connecting plate 205. On the left side of each of the two support plates 301, a fixing plate 302 is fixedly connected. This fixing plate 302 provides a solid mounting for the drive component motor 303. The motor 303 is fixedly installed on the top of the two fixing plates 302, serving as the power source for the rotating mechanism 3 and providing stable power output for the entire rotation. After the output end of the motor 303 passes through the right side of the support plate 301, a round block 304 is fixedly connected to each of them. This component plays a key role in transmitting the power of the motor 303. The right side of the round block 304 is rotatably connected to the rotating shaft 305. The power drives the elastic concave plate 306 on the right side to rotate through the rotating shaft 305. The elastic concave plate 306 is mainly used to support and fix the object to be rotated.

[0039] Reference Figure 1 , Figure 2 and Figure 3 The fixing component 202 includes L-shaped stabilizers 2021, the bottom of which is fixedly connected to the top left and right sides of the base 1. Screws 2022 are fixedly connected inside each L-shaped stabilizer 2021. Their function is to securely install the fixing component 202 onto the base 1 using the L-shaped stabilizers 2021 and screws 2022, thereby enhancing the overall structural stability. The moving component 206 includes a second connecting plate 2061, the bottom of which is fixedly connected to the top left and right sides of the base 1. A slot 2062 is provided inside the second connecting plate 2061. A slider 2063 is slidably connected to the top of the connecting plate 2061. By utilizing the cooperation of the connecting plate 2061, the slot 2062, and the slider 2063, the sliding connection and positioning of related components are realized, which facilitates the adjustment and assembly of the structure. The connecting component 207 includes two cylinders 2071. The bottom of the cylinders 2071 is fixedly connected to the top of the connecting plate 205. A rotating plate 2072 is fixedly connected between the adjacent cylinders 2071. The left and right ends of the cylinders 2071 are provided with circular grooves 2073, which enable the connecting component 207 to realize the rotation function and ensure the structural connection.

[0040] Specifically, the core component of the fixing assembly 202 is the L-shaped stabilizer 2021, whose bottom is symmetrically fixed to the top left and right sides of the base 1, forming a stable support base. Each L-shaped stabilizer 2021 is internally fitted with screws 2022. Through the synergistic action of the screws 2022 and the L-shaped stabilizer 2021, the fixing assembly 202 is firmly fixed to the base 1, effectively enhancing the overall structural stability. The moving assembly 206 is composed of a second connecting plate 2061, whose bottom is fixedly connected to the top left and right sides of the base 1. The second connecting plate 2061 has a slot 2062 inside, and a slider 2063 is slidably connected to its top. With the precise cooperation of connecting plate 2061, slot 2062 and slider 2063, the sliding connection and positioning functions of related components are realized, which facilitates the adjustment of the structure. The connecting component 207 includes two cylinders 2071. The bottom of the cylinders 2071 is fixed to the top of connecting plate 205. The two cylinders 2071 are fixedly connected to the adjacent sides of the two cylinders 2071. The left and right ends of the cylinders 2071 are provided with circular grooves 2073, which enables the connecting component 207 to have a rotation function.

[0041] Reference Figure 1 , Figure 2 and Figure 5 The positioning component 208 includes an irregularly shaped triangular block 2081, which is located in the middle of the base 1 to ensure the stability of the overall structure. A limit ring 2083 is fixedly connected to the top of the irregularly shaped triangular block 2081 to limit the movement of related components and prevent them from shifting. A rotating column 2082 is rotatably connected to the middle of the irregularly shaped triangular block 2081 to enable the rotation of related components to meet usage requirements. A cooling tank 4 is fixedly connected to the front of the irregularly shaped triangular block 2081 to store the cooling medium. A spray head 5 is fixedly connected to the right side of the cooling tank 4 to spray the cooling medium evenly to the designated position. A protruding plate 6 is fixedly connected to the bottom of the support plate 301 to increase the structural strength of the bottom of the support plate 301 and to provide an installation position for the temperature sensor 7. A temperature sensor 7 is fixedly connected to the front of the protruding plate 6 to detect the temperature information of the relevant position.

[0042] Specifically, the core structure of the positioning component 208 is an irregularly shaped triangular block 2081. This component is precisely installed in the middle of the base 1. The optimized layout ensures the stable support of the overall structure. The top of the irregularly shaped triangular block 2081 is fitted with a limit ring 2083 through a fixed connection, which can effectively limit the displacement range of related components and ensure the position during operation. In the middle of the irregularly shaped triangular block 2081, a rotating column 2082 is installed through a rotating connection structure. This design allows the associated components to rotate, fully meeting the multi-angle use requirements of the equipment. The front side of the irregularly shaped triangular block 2081 is fixedly connected to a cooling tank 4 for storing circulating cooling medium. The spray head 5 installed on the right side of the cooling tank 4 can evenly deliver the cooling medium to the designated working area. The bottom of the receiving plate 301 is fixedly connected to a protruding plate 6, which enhances the structural strength of the receiving plate 301 and provides stable installation conditions for the temperature sensor 7. The temperature sensor 7 installed in front of the protruding plate 6 monitors the temperature data of key positions in real time, providing a basis for the control of equipment operation status.

[0043] Working principle: Before the device is started, all components are in their initial state. The two clamping cylinders 201 of the clamping mechanism 2 are in the retracted state, which drives the telescopic rod 203, connecting block 204 and connecting plate 205 to retract synchronously, leaving enough space for the diaphragm to be placed. The fixing component 202 firmly fixes the clamping cylinders 201 to the top left and right sides of the base 1 through the L-shaped stabilizer 2021 and screws 2022, ensuring that the cylinders do not shake during the clamping process. The slider 2063 of the component moving component 206 is in the initial position in the slot 2062 of the connecting plate 2061, providing stable support for the connecting block 204. The rotating column 2082 of the positioning component 208 maintains the initial angle, and the limiting ring 2083 is in the position to be positioned. When the diaphragm needs to be processed, the operator places the diaphragm in the middle of the base 1. The irregular triangular block 2081 of the positioning component 208 serves as the reference support structure. The edge of the diaphragm contacts the limiting ring 2083, realizing the initial positioning. If the diaphragm angle needs to be adjusted, the diaphragm can be rotated around the center to the preset position by rotating the rotating column 2083 of the positioning component 208. The limiting ring 2083 can effectively prevent the diaphragm from shifting during rotation, ensuring positioning. After positioning, the clamping mechanism 2 starts to work. The control system drives the clamping cylinder 201 to extend synchronously. The telescopic rod 203 pushes the connecting block 204 to move inward. The slider 2063 at the bottom of the connecting block 204 slides smoothly along the slot 2062 of the connecting plate 2061, reducing frictional resistance while ensuring the movement trajectory. The connecting plate 205 moves synchronously with the connecting block 204, driving the top connecting component to approach the diaphragm. The rotating plate 2072 of the connecting component 207 contacts the edge of the diaphragm. The cylinder 2071 achieves rotational fine adjustment through the circular groove 2073, so that the rotating plate 2072 fits tightly against the surface of the diaphragm. The diaphragm is firmly fixed by the symmetrical clamping force on both sides, avoiding displacement during welding.

[0044] Furthermore, the rotating mechanism 3 is based on two supporting plates 301, with its bottom fixedly connected to the top of the connecting plate 205, forming a stable assembly structure to ensure connection. On the left side of each of the two supporting plates 301, a fixing plate 302 is fixedly connected. The fixing plate 302 provides an installation platform for the drive component motor 303. The motor 303 is fixedly installed on the top of the two fixing plates 302 respectively, and the power source provides stable power output for the rotation. When the angle needs to be adjusted, the motor 303 starts to output power. After the output end passes through the right side of the supporting plate 301, the power is transmitted through the fixedly connected circular block 304. The rotating shaft 305 connected to the right side of the circular block 304 receives the power and drives the elastic concave plate 306 on the right side to rotate. The elastic concave plate 306 firmly fixes the object to be rotated until it rotates to the preset angle, after which the motor 303 stops and maintains the current position stable.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for positioning and clamping corrugated pipe diaphragms for welding, comprising a base (1), characterized in that: The base (1) is provided with clamping mechanisms (2) on the top left and right sides, and each clamping mechanism (2) is provided with a rotating mechanism (3) on its top. The clamping mechanism (2) includes two clamping cylinders (201). The bottom of the two clamping cylinders (201) is located on the top left and right sides of the base (1). A fixing component (202) is provided on the left side of each of the two clamping cylinders (201). A telescopic rod (203) is fixedly connected to the left side of each of the two clamping cylinders (201). A connecting block (204) is fixedly connected to the right side of each of the telescopic rods (203). A connecting plate (205) is fixedly connected to the top of each of the connecting blocks (204). A moving component (206) is provided at the bottom of each of the connecting blocks (204). A connecting component (207) is provided at the top of the connecting plate (205). A positioning component (208) is provided at the top of the base (1).

2. The device for positioning and clamping diaphragms for welding corrugated pipes according to claim 1, characterized in that: The rotating mechanism (3) includes two receiving plates (301). The bottom of the two receiving plates (301) is fixedly connected to the top of the connecting plate (205). A fixing plate (302) is fixedly connected to the left side of each of the two receiving plates (301). A motor (303) is fixedly connected to the top of each fixing plate (302). The output end of the motor (303) passes through the right side of each receiving plate (301). A round block (304) is fixedly connected to the right side of each round block (304). A rotating shaft (305) is rotatably connected to the right side of each rotating shaft (305). An elastic concave plate (306) is fixedly connected to the right side of each rotating shaft (305).

3. The device for positioning and clamping diaphragms for welding corrugated pipes according to claim 1, characterized in that: The fixing component (202) includes an L-shaped stabilizer (2021), the bottom of which is fixedly connected to the top left and right sides of the base (1), and screws (2022) are fixedly connected inside the L-shaped stabilizer (2021).

4. The device for positioning and clamping diaphragms for welding corrugated pipes according to claim 1, characterized in that: The moving component (206) includes a second connecting plate (2061), the bottom of which is fixedly connected to the top left and right sides of the base (1). The second connecting plate (2061) has a slot (2062) inside, and a slider (2063) is slidably connected to the top of the second connecting plate (2061).

5. The device for positioning and clamping a diaphragm for welding a corrugated pipe according to claim 1, characterized in that: The connecting assembly (207) includes two cylinders (2071), the bottom of which is fixedly connected to the top of the connecting plate (205), and a rotating plate (2072) is fixedly connected between the two adjacent cylinders (2071). Circular grooves (2073) are provided at the left and right ends of the cylinders (2071).

6. The device for positioning and clamping diaphragms for welding bellows according to claim 1, characterized in that: The positioning component (208) includes an irregular triangular block (2081), which is located in the middle of the base (1). A limit ring (2083) is fixedly connected to the top of the irregular triangular block (2081), and a rotating column (2082) is rotatably connected to the middle of the irregular triangular block (2081).

7. A device for positioning and clamping diaphragms for welding corrugated pipes according to claim 6, characterized in that: A cooling tank (4) is fixedly connected to the front side of the irregular triangular block (2081), and a spray head (5) is fixedly connected to the right side of the cooling tank (4).

8. A device for positioning and clamping diaphragms for welding corrugated pipes according to claim 2, characterized in that: A protruding plate (6) is fixedly connected to the bottom of the receiving plate (301), and a thermometer (7) is fixedly connected to the front side of the protruding plate (6).

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