Double tube riveting processing equipment

Abstract

The utility model provides a double-tube riveting processing equipment, which is used for installing a first branch pipe and a second branch pipe to a pressure plate, wherein at least two holes matching the first branch pipe or the second branch pipe are opened on the pressure plate, and an internal expansion mechanism is included for fixing the second branch pipe, wherein the internal expansion mechanism includes a connecting seat and a multi-petal elastic body arranged at one end of the connecting seat, wherein the multi-petal elastic body is distributed at intervals along the circumferential direction of the end of the connecting seat, and when the connecting seat moves toward the second branch pipe, the multi-petal elastic body is in a retracted state, and when the elastic body moves to a position to be tightened of the second branch pipe, the multi-petal elastic body expands outwardly, so that the multi-petal elastic body supports the circumferential direction of the inner side of the second branch pipe; the utility model can improve the connection stability between the branch pipe and the pressure plate.

Description

Technical Field

[0001] The utility model relates to the field of automobile air-conditioning pipeline processing, in particular to double-tube riveting processing equipment. Background Art

[0002] At present, when processing automobile air-conditioning pipes, some products need to connect two branch pipes to a pressure plate, and perform processing such as grooving and bulging on the ends of the branch pipes.

[0003] However, because the installation positions of the two branch pipes are close to each other, the conventional method is used to first fix the branch pipes to the pressure plate and then groove the pipe ends. The groove processing of the pipe ends of the second branch pipe will be interfered by the previous branch pipe. Therefore, the current processing process of this type of product is basically as follows: after the pipe ends of the first branch pipe are grooved, the second branch pipe is fixed to the pressure plate after the shape processing is completed by welding, or two branch pipes without pipe end processing are welded to the forming pressure plate. However, these two methods also have problems such as high processing cost and unstable welding that causes the branches to fall off easily. Utility Model Content

[0004] The utility model aims to provide a double-tube riveting processing equipment which can solve the above-mentioned technical problems.

[0005] In order to solve the above technical problems, the utility model provides a double-tube riveting processing equipment, which is used to install the first branch pipe and the second branch pipe to the pressure plate, and the pressure plate is provided with at least two holes matching the first branch pipe or the second branch pipe, including an internal expansion mechanism for fixing the second branch pipe, and the internal expansion mechanism includes a connecting seat and a multi-petal elastomer arranged at one end of the connecting seat, and the multi-petal elastomer is distributed at intervals along the circumferential direction of the end of the connecting seat. When the connecting seat moves toward the second branch pipe, the multi-petal elastomer is in a retracted state. When the elastomer moves to the position to be tightened of the second branch pipe, the multi-petal elastomer expands outward so that the multi-petal elastomer supports the circumferential direction of the inner side of the second branch pipe.

[0006] Furthermore, a through groove is opened on one side of the connecting seat, and the through groove passes through the connecting seat and the multi-petal elastomer, and one end of the through groove has a first inclined surface, and the first inclined surface is located on the inner side of an end of the multi-petal elastomer away from the connecting seat. A push rod is movably installed inside the through groove, and the end of the push rod has a conical surface, and the conical surface matches the first inclined surface.

[0007] Furthermore, there is a gap between two adjacent elastic bodies.

[0008] Furthermore, when the plurality of elastic bodies enter the inner side of the second branch pipe in a collapsed state, there is a gap between the elastic bodies and the inner wall of the second branch pipe.

[0009] Furthermore, the elastic body has a protrusion at one end away from the connecting seat, and the protrusion at the multi-petal elastic body forms a cylindrical structure.

[0010] Furthermore, a corner structure is provided on the outer side of the connection between the connection seat and the elastic body.

[0011] Furthermore, a clamping mold is provided on one side of the connecting seat, and an end of the second branch pipe away from the connecting seat is placed in the clamping mold.

[0012] Furthermore, a second inclined surface is provided along the circumferential direction on one side of the clamping die close to the second branch pipe.

[0013] The beneficial effects of the utility model are:

[0014] The multi-petal elastic body is supported by the push rod, so that the multi-petal elastic body expands and supports the inner wall of the second branch pipe, thereby making the second branch pipe conveniently and stably fixed on the pressure plate and not easy to fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Figure 2 It is a schematic diagram of the elastic body in the utility model being in a retracted state.

[0017] Figure 3 It is a schematic diagram of the elastic body in the utility model performing tensioning and supporting on the second branch pipe.

[0018] Figure 4 It is a schematic diagram of the processing flow of the first branch pipe and the second branch pipe in the utility model.

[0019] Figure 5 It is a structural schematic diagram of the elastic body in the utility model.

[0020] Figure numerals: 1. first branch pipe; 2. second branch pipe; 3. pressure plate; 4. internal expansion mechanism; 41. connecting seat; 42. elastic body; 43. through groove; 44. first inclined surface; 45. push rod; 46. conical surface; 47. gap; 48. space; 49. protrusion; 410. corner structure; 5. clamping mold; 51. second inclined surface. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0022] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0023] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0024] like Figure 1-5 The utility model provides a double-tube riveting processing equipment, which is used to install the first branch pipe 1 and the second branch pipe 2 to the pressure plate 3. The pressure plate 3 is provided with at least two holes matching the first branch pipe 1 or the second branch pipe 2, including an internal expansion mechanism 4 for fixing the second branch pipe 2. The internal expansion mechanism 4 includes a connecting seat 41 and a multi-petal elastic body 42 arranged at one end of the connecting seat 41. The multi-petal elastic body 42 is distributed at intervals along the circumferential direction of the end of the connecting seat 41. When the connecting seat 41 moves toward the second branch pipe 2, the multi-petal elastic body 42 is in a retracted state. When the elastic body 42 moves to the position to be tightened of the second branch pipe 2, the multi-petal elastic body 42 expands outward so that the multi-petal elastic body 42 supports the circumferential direction of the inner side of the second branch pipe 2.

[0025] Specifically, after the second branch tube is placed at the other hole of the pressure plate, the connecting seat drives the multi-petal elastomer to move toward the second branch tube. At this time, the multi-petal elastomer is in a retracted state to ensure that the multi-petal elastomer can stably enter the inside of the second branch tube. Subsequently, after the multi-petal elastomer moves to the position of the second branch tube to be tightened, the multi-petal elastomer expands outward, and then the multi-petal elastomer supports the circumference of the inner side of the second branch tube, so that the position of the second branch tube to be tightened is supported outward, so that the second branch tube is supported and fixed to the pressure plate.

[0026] Among them, the connection seat can be controlled to move through a hydraulic cylinder, a servo motor and a screw drive; the elastic body can be made of a hard material with a certain elastic deformation ability such as spring steel.

[0027] It is worth mentioning that when using the double-tube riveting processing equipment of this solution, the following processing process can be adopted:

[0028] Step 1: Install the first branch pipe 1 to one of the holes of the pressing plate 3, and fix the connection between the first branch pipe 1 and the pressing plate 3;

[0029] Step 2: Processing the pipe end of the first branch pipe 1;

[0030] Step 3: Processing the pipe end of the second branch pipe 2;

[0031] Step 4: Install the second branch pipe 2 to another hole of the pressing plate 3, and use the internal expansion mechanism 4 to expand and support the inner side of the connection between the second branch pipe 2 and the pressing plate 3, so that the second branch pipe 2 is tightened and fixed to the pressing plate 3;

[0032] Specifically, by first processing the pipe end of the second branch pipe and then fixing it to the pressing plate through the internal expansion mechanism, the situation in which the pipe end processing of the second branch pipe is interfered by the first branch pipe is effectively avoided.

[0033] The pressing plate is provided with at least two holes, and the inner diameters of the holes match the outer diameters of the branch pipes.

[0034] In one embodiment of the present solution, the pipe end processing of the first branch pipe 1 and the second branch pipe 2 includes spiral grooves and bulges, and the processing methods of the spiral grooves and bulges are existing technologies and will not be described in detail here.

[0035] Preferably, a through groove 43 is opened on one side of the connecting seat 41, and the through groove 43 passes through the connecting seat 41 and the multi-petal elastomer 42, and one end of the through groove 43 has a first inclined surface 44, and the first inclined surface 44 is located on the inner side of one end of the multi-petal elastomer 42 away from the connecting seat 41, and a push rod 45 is movably installed inside the through groove 43, and the end of the push rod 45 has a conical surface 46, and the conical surface 46 matches the first inclined surface 44.

[0036] Specifically, when the multi-petal elastomer needs to be opened and supported, the push rod is moved so that the conical surface at the end of the push rod moves to contact the first inclined surface position of the multi-petal elastomer, so that the conical surface can synchronously support the multi-petal elastomer through the first inclined surface, and the multi-petal elastomer can be synchronously expanded outward to ensure that the inner circumferential position of the second branch pipe is simultaneously tightened, thereby ensuring the stability of the second branch pipe fixed to the pressure plate.

[0037] The push rod can be controlled to move by means of a hydraulic cylinder, a servo motor and a screw drive.

[0038] In one embodiment of the present solution, the angle between the first inclined surface 44 and the axis of the push rod 45 is 15°-45°.

[0039] Preferably, there is a gap 47 between two adjacent elastic bodies 42 .

[0040] Specifically, when the multi-petal elastic body expands outward, the gap structure provided between two adjacent elastic bodies can ensure that the elastic body will not be interfered by other elastic bodies during the expansion process, thereby improving the supporting effect of the spring on the second branch pipe.

[0041] Preferably, when the plurality of elastic bodies 42 enter the inner side of the second branch pipe 2 in a collapsed state, a gap 48 is formed between the elastic bodies 42 and the inner wall of the second branch pipe 2 .

[0042] Specifically, in order to ensure that the elastic body can smoothly enter the inner side of the second branch tube, and then ensure that the elastic body can stably support the inner side of the second branch tube, the present solution sets a gap between the elastic body in the retracted state and the inner wall of the second branch tube, so as to provide the elastic body with sufficient movement space during the process of extending into the second branch tube, and can effectively prevent the elastic body from contacting the inner wall of the second branch tube during the movement, which may cause the position of the second branch tube to be pushed and become inaccurate.

[0043] Preferably, the elastic body 42 has a protrusion 49 at one end away from the connecting seat 41 , and the protrusion 49 at the multi-petal elastic body 42 forms a cylindrical structure.

[0044] Specifically, during the outward expansion process, the entire elastomer does not move outward, but the end position of the elastomer having the first slope expands the most outward, and the closer the elastomer is to the connecting seat, the smaller the expansion distance is, until it is zero. Therefore, the provision of the protrusion can further enhance the expansion range of the end position of the elastomer having the first slope, thereby improving the supporting and tightening effect of the elastomer on the inner side of the second branch pipe.

[0045] It is worth mentioning that the advantage of the setting method in which the protrusions of the multi-petal elastomer form a cylindrical structure is that it can better adapt to the cylindrical structure of the inner wall of the second branch pipe, and ensure that when the multi-petal elastomer expands outward, several protrusions simultaneously support the circumferential direction of the inner wall of the second branch pipe.

[0046] Preferably, a corner structure 410 is provided on the outer side of the connection between the connection seat 41 and the elastic body 42 .

[0047] Specifically, the corner structure makes it easier for the elastic body to expand outward to support the body, and the expansion range of the elastic body will be limited by the corner structure, thereby preventing the elastic body from bending at the connecting seat, thereby ensuring the structural stability of the connecting seat.

[0048] Preferably, a clamping mold 5 is provided on one side of the connecting seat 41 , and an end of the second branch pipe 2 away from the connecting seat 41 is placed in the clamping mold 5 .

[0049] Specifically, the second branch pipe is clamped and fixed by a clamping die to ensure the stability of the second branch pipe during the tensioning and fixing process.

[0050] The clamping structure in this solution is consistent with the existing clamping structure. The clamping structure includes two clamping blocks arranged opposite to each other. The relative or opposite movement of the two clamping blocks is controlled by a hydraulic cylinder, thereby controlling the clamping or releasing of the two clamping blocks.

[0051] In one embodiment of the present solution, a second inclined surface 51 is formed along the circumferential direction on one side of the clamping die 5 close to the second branch pipe 2 .

[0052] Specifically, when the multi-petal elastic body is used to tension and support the second branch pipe, the tensioning position of the elastic body can be avoided by the second inclined surface to prevent the outer side of the tensioning position of the second branch pipe from being clamped and fixed by the clamping mold, which will cause the second branch pipe to be unable to be tensioned outward.

[0053] The present utility model is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in the shape or structure, all those having the same or similar technical solutions as the present application fall within the protection scope of the present utility model.

Claims

1. A double-tube riveting processing device, used for installing a first branch tube (1) and a second branch tube (2) on a pressing plate (3), wherein the pressing plate (3) is provided with at least two holes matching the first branch tube (1) or the second branch tube (2), characterized in that: The invention comprises an internal expansion mechanism (4) for fixing the second branch pipe (2), the internal expansion mechanism (4) comprising a connecting seat (41) and a multi-petal elastic body (42) arranged at one end of the connecting seat (41), the multi-petal elastic body (42) being distributed at intervals along the circumferential direction of the end of the connecting seat (41), when the connecting seat (41) moves toward the second branch pipe (2), the multi-petal elastic body (42) is in a contracted state, when the elastic body (42) moves to a position to be tightened of the second branch pipe (2), the multi-petal elastic body (42) expands outwards, so that the multi-petal elastic body (42) supports the circumferential direction of the inner side of the second branch pipe (2).

2. The double-tube riveting processing equipment according to claim 1 is characterized in that: A through groove (43) is provided on one side of the connecting seat (41), and the through groove (43) passes through the connecting seat (41) and the multi-petal elastic body (42), and one end of the through groove (43) has a first inclined surface (44), and the first inclined surface (44) is located on the inner side of an end of the multi-petal elastic body (42) away from the connecting seat (41), and a push rod (45) is movably installed inside the through groove (43), and the end of the push rod (45) has a conical surface (46), and the conical surface (46) matches the first inclined surface (44).

3. The double-tube riveting processing equipment according to claim 1 is characterized in that: There is a gap (47) between two adjacent elastic bodies (42).

4. The double-tube riveting processing equipment according to claim 1 is characterized in that: When the plurality of elastic bodies (42) enter the inner side of the second branch pipe (2) in a collapsed state, a gap (48) is formed between the elastic bodies (42) and the inner wall of the second branch pipe (2).

5. The double-tube riveting processing equipment according to claim 1 is characterized in that: One end of the elastic body (42) away from the connecting seat (41) has a protrusion (49), and the protrusion (49) at the multi-petal elastic body (42) forms a cylindrical structure.

6. The double-tube riveting processing equipment according to claim 1 is characterized in that: The outer side of the connection between the connection seat (41) and the elastic body (42) has a corner structure (410).

7. The double-tube riveting processing equipment according to claim 1 is characterized in that: A clamping mold (5) is provided on one side of the connecting seat (41), and an end of the second branch pipe (2) away from the connecting seat (41) is placed in the clamping mold (5).

8. The double-tube riveting processing equipment according to claim 7 is characterized in that: A second inclined surface (51) is provided along the circumferential direction on one side of the clamping mold (5) close to the second branch pipe (2).

Images