Automobile air conditioner aluminum pipe flange joint rotary groove machining die tooling

Abstract

The utility model discloses a kind of automobile air conditioner aluminium pipe flange joint spin groove processing die frock, it is related to the field of automobile air conditioner pipeline accessory processing, including frock support and gyro wheel mould, the front end of frock support is detachably rotated with a support plate, the central axis direction of gyro wheel mould is rotated and installed with a support shaft, one end of support shaft is provided with support part, the support part is fitted in the top of support plate, the other end of support shaft is assembled with frock support, to make the both ends of gyro wheel mould are rotated and assembled on frock.The utility model adds support plate in the one end of frock support, the both ends of support shaft are respectively with frock support, support plate, to make the both ends of gyro wheel mould are effectively supported, and then make gyro wheel mould force uniform when pressing groove, avoid its generation inclination to lead to the taper problem of pressing groove, ensure product processing after front-back size consistency, realize product front-back diameter size error control within 0.02mm, greatly improve the precision of processing.

Description

Technical Field

[0001] This utility model relates to the field of automotive air conditioning pipe fittings processing, and in particular to a mold and tooling for machining grooves on automotive air conditioning aluminum pipe flange joints. Background Technology

[0002] In the production of automotive air conditioning pipes, a groove is pre-pressed during the manufacturing process to ensure an absolute seal at the pipe connections. This groove provides a precise installation position for the sealing ring. Through the filling effect of the sealing ring, a tight seal is ultimately formed between the pipes, thereby eliminating the risk of leakage and ensuring the long-term stable operation of the air conditioning system.

[0003] It is worth noting that before the pipe is grooved, flanges for connecting the various pipes are already installed on the pipe behind the grooved section, such as... Figure 1 As shown.

[0004] Currently, the grooving process generally adopts a roller processing method: multiple rollers are installed on the overhanging end of the roller shaft, so that the end face of the roller is in contact with the flange face of the pipe joint for rolling.

[0005] However, this structure has inherent drawbacks. First, because the rollers are suspended in the air, such as... Figure 2 As shown, its installation accuracy is difficult to guarantee, and it is prone to tilting during processing, resulting in a slight taper in the groove shape after pressing. This taper causes uneven stress on the assembled sealing ring within the groove, making it impossible to form a uniform and reliable sealing interface, thus posing a risk of leakage.

[0006] Secondly, this processing method also faces a structural contradiction: to avoid the flanges pre-assembled on the pipe, rollers with larger diameters must be used. However, as the roller diameter increases, even if the three sets of rollers retract to their limit positions, the minimum diameter of the inscribed circle they form also increases accordingly, making it impossible to process pipe fittings with smaller diameters.

[0007] Existing technologies, limited by their roller mounting structure and clearance requirements, struggle to guarantee consistent precision in groove dimensions and lack adaptability for processing small-sized pipe fittings. This results in poor sealing, directly impacting the reliability of air conditioning systems. Therefore, a new processing solution is urgently needed to address these shortcomings. Utility Model Content

[0008] In order to overcome the above-mentioned defects of the prior art, the present invention provides a tooling for machining grooves on aluminum pipe flange joints for automotive air conditioning, so as to solve the problems existing in the background art.

[0009] This utility model provides the following technical solution: a tooling fixture for machining grooves on aluminum pipe flanges for automotive air conditioning, including a tooling support and a roller mold. The front end of the tooling support is detachably rotatably provided with a support plate. The support plate and the front end of the tooling support form a space for assembling the roller mold. A support shaft is rotatably mounted on the central axis of the roller mold. One end of the support shaft is provided with a support part below the shaft center to avoid the flange. The support part fits into the top of the support plate. The other end of the support shaft is assembled with the tooling support so that both ends of the roller mold are rotatably assembled on the tooling.

[0010] Preferably, it also includes a mandrel, with multiple roller molds evenly arranged along the circumference of the mandrel. During grooving, one end of the mandrel is inserted into and abuts against one end of the pipe to keep the pipe in the center position.

[0011] Preferably, it also includes two pipe clamping molds, which are arranged symmetrically about the center line of the mandrel, for clamping and fixing the pipe.

[0012] Preferably, the support portion and the support shaft are integrally formed.

[0013] Preferably, the support portion has a semi-circular structure.

[0014] Preferably, the support portion has a fan-shaped structure.

[0015] Preferably, the support portion has a rectangular structure.

[0016] Preferably, the top surface of the support plate has a slot that matches the support part, and the top surface of the support part is flush with the top surface of the slot.

[0017] Preferably, the support portion and the slot are provided with a threaded hole for connecting the support portion to the support plate by bolts.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model adds a support plate to one end of the tooling support, and the two ends of the support shaft are respectively connected to the tooling support and the support plate, so that both ends of the roller mold are effectively supported, thereby making the roller mold bear the force evenly when pressing the groove, avoiding the tilting of the roller mold and preventing the tapering problem caused by pressing the groove, ensuring the consistency of the front and rear dimensions of the product after processing, and controlling the front and rear diameter error of the product within 0.02mm, which greatly improves the processing accuracy.

[0019] 2. This utility model adds a support part to one end of the support shaft and sets the support part below the axis of the support shaft to avoid the flange of the pipe, thereby satisfying the groove processing of small-sized pipes. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the air conditioning pipe structure.

[0021] Figure 2 This is a schematic diagram of the installation of an existing roller mold.

[0022] Figure 3 This is a schematic diagram of the roller mold installation structure of this utility model.

[0023] Figure 4 This is an exploded view of the roller mold of this utility model.

[0024] Figure 5 This is a schematic diagram of the tooling of this utility model.

[0025] Figure 6 This is a schematic diagram of the semi-circular support part of this utility model.

[0026] Figure 7 This is a schematic diagram of the fan-shaped support part of this utility model.

[0027] Figure 8 This is a schematic diagram of the rectangular support part of this utility model.

[0028] The attached figures are labeled as follows: 1. Tooling support; 2. Roller mold; 3. Support plate; 4. Support shaft; 5. Support part; 6. Mandrel; 7. Pipe clamping mold. Detailed Implementation

[0029] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.

[0030] This utility model provides a tooling and fixture for machining grooves in aluminum pipe flange joints for automotive air conditioning systems, such as... Figure 1-8 As shown, the tooling support 1, roller mold 2, support plate 3, support shaft 4, support part 5, mandrel 6, and pipe clamping mold 7 are all included.

[0031] Each tooling support 1 is equipped with a roller mold 2, forming one set, and a total of three sets are provided. The three sets of tooling supports 1 and roller molds 2 are evenly arranged along the circumference of the mandrel 6. The other end of the tooling support 1 is mounted on a chuck. During grooving, the chuck synchronously drives the three sets of tooling supports 1 and roller molds 2 to rotate, grooving the pipe. One end of the mandrel 6 is inserted into and abuts against one end of the pipe to keep the pipe centered. There are two pipe clamping molds 7, symmetrically arranged about the center line of the mandrel 6, used to clamp and fix the pipe, ensuring the pipe is stable during grooving in conjunction with the mandrel 6.

[0032] Furthermore, the front end of the tooling support 1 is detachably rotatably equipped with a support plate 3. The support plate 3 and the front end of the tooling support 1 form a space for assembling the roller mold 2. A support shaft 4 is rotatably mounted on the central axis of the roller mold 2. One end of the support shaft 4 is provided with a support part 5 at the bottom of the shaft center. The support part 5 fits into the top of the support plate 3. The other end of the support shaft 4 is assembled with the tooling support 1 so that the roller mold 2 can be rotatably assembled on the tooling.

[0033] This application adds a support plate 3 to one end of the tooling support 1, and the two ends of the support shaft 4 are respectively connected to the tooling support 1 and the support plate 3, so that both ends of the roller mold 2 are effectively supported, thereby making the roller mold 2 uniformly stressed when pressing the groove, avoiding the tilting of the roller mold and preventing the tapering problem caused by pressing the groove, ensuring the consistency of the front and rear dimensions of the product after processing, and controlling the front and rear diameter error of the product within 0.02mm, which greatly improves the processing accuracy.

[0034] Furthermore, a support part 5 is added to one end of the support shaft 4, and the support part 5 is positioned below the axis of the support shaft 4 to avoid the flange of the pipe, thereby satisfying the groove processing of small-sized pipes.

[0035] In this embodiment, the connection between the support part 5 and the support shaft 4 is preferably an integrated molding design to improve the strength and rigidity of the product. Welding, detachable connections, or other methods can also be used as needed.

[0036] In this embodiment, the support portion 5 is preferably a semi-circular structure. This allows the support portion 5 to contact the top surface of the support plate 3 to the maximum extent, thereby improving stability. Alternatively, the support portion 5 can be configured as a fan-shaped or rectangular structure, or any other structure, as long as it is lower than the axial height of the support shaft 3, thus satisfying the adjustment requirements of the clearance flange.

[0037] In this embodiment, the top surface of the support plate 3 has a slot that matches the support part 5. This slot can be semi-circular, fan-shaped, or rectangular, and can be adapted to fit the actual dimensions of the support part 5. Furthermore, the top surface of the support part 5 is flush with the top surface of the slot. Additionally, a threaded hole is provided connecting the support part 5 and the slot to connect the support part 5 to the support plate 3 using bolts.

[0038] Several points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0039] The above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. Any equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present utility model should be included in the protection scope recorded in the claims.

Claims

1. A tooling fixture for machining grooves on aluminum pipe flange joints for automotive air conditioning systems, comprising a tooling support and a roller mold, characterized in that: The tooling support has a detachable and rotatable support plate at its front end. The support plate and the front end of the tooling support form a space for assembling the roller mold. A support shaft is rotatably mounted on the central axis of the roller mold. One end of the support shaft is located below the shaft center and has a support part to avoid the flange. The support part fits into the top of the support plate. The other end of the support shaft is assembled with the tooling support so that both ends of the roller mold are rotatably assembled on the tooling.

2. The tooling for machining grooves on an automotive air conditioning aluminum pipe flange joint according to claim 1, characterized in that: It also includes a mandrel, with multiple roller molds evenly arranged along the circumference of the mandrel. During the grooving process, one end of the mandrel is inserted into and abuts against one end of the pipe to keep the pipe in the center position.

3. The tooling for machining grooves on an automotive air conditioning aluminum pipe flange joint according to claim 1, characterized in that: It also includes pipe clamping molds, of which there are two, and they are arranged symmetrically about the center line of the mandrel, for clamping and fixing the pipe.

4. The tooling for machining grooves on an automotive air conditioning aluminum pipe flange joint according to claim 1, characterized in that: The support part and the support shaft are integrally molded.

5. The tooling for machining grooves on an automotive air conditioning aluminum pipe flange joint according to claim 4, characterized in that: The support part has a semi-circular structure.

6. The tooling for machining grooves on an automotive air conditioning aluminum pipe flange joint according to claim 5, characterized in that: The support part has a fan-shaped structure.

7. The tooling for machining grooves on an automotive air conditioning aluminum pipe flange joint according to claim 6, characterized in that: The support part has a rectangular structure.

8. A tooling fixture for machining grooves on an automotive air conditioning aluminum pipe flange joint according to any one of claims 5-7, characterized in that: The top surface of the support plate has a slot that matches the support part, and the top surface of the support part is flush with the top surface of the slot.

9. The tooling for machining grooves on an automotive air conditioning aluminum pipe flange joint according to claim 8, characterized in that: The support part and the slot are provided with a threaded hole for connecting the support part to the support plate by bolts.

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