Air conditioner branch pipe welding machining device

Abstract

The utility model relates to a welding machining device for an air conditioner branch pipe. The welding machining device comprises a U-shaped induction coil and a fixing support which are oppositely arranged. The fixing support comprises a vertical plate, a transverse plate vertically arranged on the front side of the middle of the vertical plate and a top plate arranged on the top of the vertical plate. The bottom of the vertical plate is installed on the base in a front-back moving mode, a through hole is formed in the right side of the top plate, a pressing rod is arranged in the through hole in an up-down sliding mode, and a conical block is downwards arranged at the bottom end of the pressing rod. A U-shaped notch I matched with the main pipe is formed in the front part of the transverse plate, so that the Y-shaped branch pipe can be clamped in the U-shaped notch I; a transverse clamping block is further arranged on the left side of the pressing rod, a second U-shaped notch matched with the first flow dividing pipe is formed in the right side of the transverse clamping block, and the transverse clamping block is installed at the bottom of the top plate in a left-right adjustable mode. The welding fixture has the advantages of being capable of facilitating welding and processing of test articles in small batches, simple in structure and high in welding efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of branch pipe processing, and in particular to a branch pipe welding processing device for an air conditioner. Background Art

[0002] Air conditioning branch pipes are also called air conditioning branch devices or branch pipes, branch pipes, etc. They are used in VRV air conditioning systems to connect the main unit and multiple terminal devices (evaporators). They are divided into gas pipes and liquid pipes. The gas pipe is generally thicker than the liquid pipe. The refrigerant passes through the expansion valve or capillary throttling, and then comes out of the main unit outlet and connects to the liquid pipe of the branch. The refrigerant can be divided into other branch pipes and terminal evaporators through the liquid pipe diversion. After the refrigerant absorbs heat in the evaporator and becomes gas, it flows back to the compressor of the main unit through the gas pipe.

[0003] Brazing refers to a welding method in which the solder and the metal of the weldment, which are lower than the melting point of the weldment, are heated to the melting temperature of the solder at the same time, and then the gap between the solid workpieces is filled with liquid solder to connect the metals. Most of the existing automatic brazing devices are used for straight welds, and the branch pipe welding is a circular weld. Currently, there are few automatic brazing devices suitable for branch pipe welding. Although the small number of existing branch pipe automatic welding devices have a high degree of automation, their structures are large and complex, and their costs are high. They are not suitable for welding and processing of small batches of test products. In actual production, workers are often required to perform manual welding. In the manual welding process, if the copper pipe is fixed with clamps or screws, it is time-consuming and inefficient.

[0004] Therefore, in order to overcome the defects of the prior art, an air-conditioning branch pipe welding processing device is proposed, which can facilitate the welding processing of a small batch of test products, has a simple structure and high welding efficiency. Summary of the invention

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an air-conditioning branch pipe welding processing device, which can facilitate the welding processing of a small batch of test products, has a simple structure and high welding efficiency.

[0006] The objective of the present invention is achieved through the following technical solutions:

[0007] A device for welding and processing branch pipes of an air conditioner, used for a tee pipe and a shunt pipe 1 and a shunt pipe 2 of a Y-shaped branch pipe, a main pipe is welded at the bottom of the tee pipe, including a U-shaped induction coil and a fixed bracket arranged relatively; the fixed bracket includes a vertical plate, a horizontal plate arranged vertically on the front side of the middle part of the vertical plate, and a top plate arranged on the top of the vertical plate; the bottom of the vertical plate can be installed on the base so as to be movable forward and backward, a through hole is provided on the right side of the top plate, a pressure rod is provided in the through hole so as to be able to slide up and down, and a conical block is provided downward at the bottom end of the pressure rod; a U-shaped notch 1 matched with the main pipe is provided at the front part of the horizontal plate, so that the Y-shaped branch pipe can be clamped in the U-shaped notch 1; a transverse clamping block is also provided on the left side of the pressure rod, a U-shaped notch 2 matched with the shunt pipe 1 is provided on the right side of the transverse clamping block, and the transverse clamping block can be adjusted left and right and installed at the bottom of the top plate; before welding, the main pipe and the shunt pipe 1 are correspondingly clamped in the U-shaped notch 1 and the U-shaped notch 2, and the bottom of the conical block is inserted downward into the shunt pipe 2.

[0008] In a preferred embodiment of the present scheme, the horizontal block is an L-shaped structure, and the second U-shaped notch is arranged on the outer side of the horizontal side plate of the L-shaped structure, and two bolts are vertically inserted on the vertical side plate of the L-shaped structure; a side plate is also arranged on the left side of the bottom of the top plate, and a butterfly nut is screwed on the left end of the bolt after the left end passes through the side plate to the left; a spring is also screwed on the bolt, and the two ends of the spring abut between the side plate and the vertical side plate of the horizontal block. While the horizontal block can be moved left and right, the position of the horizontal block can be further adjusted left and right by adjusting the butterfly nut.

[0009] In a preferred embodiment of the present scheme, a round rod is vertically provided on the left side wall of the vertical side plate of the horizontal clamping block, and the side plate is provided with a horizontal hole, and the round rod is adapted to the horizontal hole. After installation, the left end of the round rod penetrates the side plate to the left.

[0010] In a preferred embodiment of the present scheme, the horizontal plate includes a fixed block and a matching block, and the fixed block and the vertical plate are an integral structure; the matching block is detachably installed on the front side of the fixed block, and a U-shaped groove matching the main pipe is opened on the front of the matching block.

[0011] In a preferred embodiment of this scheme, a truncated cone block is provided after the top of the pressure rod passes through the top plate upwards; the bottom of the truncated cone block is threadedly connected to the top of the pressure rod, so as to facilitate the disassembly and assembly of the pressure rod.

[0012] In a preferred embodiment of this scheme, a positioning block is vertically arranged in the middle of the pressure rod, and a slot is provided in the through hole corresponding to the positioning block, so that the positioning block can pass through the top plate downward or upward from the slot, which is convenient for the staff to operate independently.

[0013] In a preferred embodiment of the present solution, the top plate is further provided with another through hole adapted to the pressure rod, and the two through holes on the top plate are located on the same horizontal straight line.

[0014] In a preferred embodiment of the present scheme, the bottom of the vertical plate can be slid forward and backward and clamped on the base; a cylinder is provided on the rear side of the base, and the telescopic end of the cylinder is vertically connected to the bottom of the vertical plate to push the vertical plate to move forward and backward on the base; when the cylinder pushes the vertical plate to move to the front of the base, the docking position of the three-way pipe of the Y-shaped branch pipe and the diversion pipe one and the diversion pipe two can be moved into the U-shaped induction coil.

[0015] The beneficial effects of the present invention are:

[0016] (1) The welding processing device of this scheme can quickly fix the branch pipe, has a simple structure, and is convenient for processing and using small batches of branch pipes. Specifically:

[0017] The solution is to set a vertical plate that can move forward and backward on the base, a horizontal plate is set in the middle of the vertical plate, and a top plate is set on the top of the vertical plate; a pressure rod is inserted on the right side of the top plate and can move up and down, and a horizontal clamping block is set at the lower left side of the top plate; a U-shaped notch one that matches the main pipe is opened on the horizontal plate, and a U-shaped notch two that matches the diverter pipe one is opened on the horizontal clamping block; before welding, the main pipe and the diverter pipe one are correspondingly clamped in the U-shaped notch one and the U-shaped notch two, and the bottom of the conical block at the bottom end of the pressure rod is inserted downward into the diverter pipe two, so that the branch pipe can be quickly fixed by the horizontal clamping block, the horizontal plate and the pressure rod. After the branch pipe is fixed, the vertical plate is driven forward by the cylinder to send the three-way pipe and the diverter pipe one and the two to be welded into the U-shaped induction coil for heating. During the heating process, the solder is filled in the gap between the three-way pipe and the diverter pipe one and the diverter pipe two by holding the solder wire or by the solder injection assembly;

[0018] (2) The transverse clamp of the present solution is an L-shaped structure, and the U-shaped groove 2 is arranged on the outer side of the transverse side plate of the L-shaped structure. Two bolts are vertically inserted into the vertical side plate of the L-shaped structure. The left end of the bolt passes through the side plate to the left and is screwed with a butterfly nut. A spring is screwed on the bolt, and the two ends of the spring abut between the side plate and the vertical side plate of the transverse clamp. Therefore, when installing, the Y-shaped branch pipe can be inserted into the U-shaped groove 1 and the U-shaped groove 2 by pushing the transverse clamp to the left. In the present solution, the transverse plate includes a fixed block and a matching block. The matching block and the transverse clamp can be replaced according to the model of the branch pipe. The two bolts for installing the transverse clamp can be adjusted left and right through the butterfly nut, and a spare through hole is also opened on the top plate to adjust the installation position of the pressure rod. Therefore, the present solution can be applied to the welding of branch pipes of different models. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the utility model;

[0020] Figure 2 A schematic diagram of heating and welding of a Y-shaped branch pipe in a U-shaped induction coil;

[0021] Figure 3It is a schematic diagram of the Y-type branch pipe structure;

[0022] Figure 4 It is a schematic diagram of the left side view of the fixing bracket;

[0023] Figure 5 It is a schematic diagram of the structure at the through hole of the top plate. DETAILED DESCRIPTION

[0024] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following.

[0025] like Figure 1 to Figure 4 As shown, an air-conditioning branch pipe welding processing device can fix the Y-shaped branch pipe and send the welding parts of the three-way pipe 2 and the branch pipe 1 3 and the branch pipe 2 4 to be sent to the U-shaped induction coil 5 for heating and welding processing.

[0026] Specifically, refer to Figure 1 As shown, in this embodiment, the welding processing device includes a U-shaped induction coil 5 and a fixed bracket that are relatively arranged; the fixed bracket includes a vertical plate 7, on which a horizontal plate 8, a top plate 9, and a pressure rod 10 are provided; the bottom of the vertical plate 7 can be installed on the base 6 so as to be movable forward and backward, a through hole is provided on the right side of the top plate 9, and the pressure rod 10 can be installed in the through hole so as to be slidable up and down, and a tapered block 1001 is provided downward at the bottom end of the pressure rod 10; a U-shaped notch 1 that is compatible with the main pipe 1 is provided at the front part of the horizontal plate 8; a transverse clamping block 11 is also provided on the left side of the pressure rod 10, and a U-shaped notch 2 that is compatible with the shunt pipe 1 3 is provided on the right side of the transverse clamping block 11, and the transverse clamping block 11 can be adjusted left and right and installed at the bottom of the top plate 9; before welding, the main pipe 1 and the shunt pipe 1 3 are correspondingly clamped in the U-shaped notch 1 and the U-shaped notch 2, and the bottom of the tapered block 1001 is inserted downward into the shunt pipe 2 4, so that the Y-shaped branch pipe can be fixed by the cooperation of the horizontal plate 8, the pressure rod 10, and the transverse clamping block 11.

[0027] Further, in this embodiment, reference Figure 1 As shown, the transverse clamping block 11 is an L-shaped structure, and a U-shaped notch 2 is arranged on the outer side of the transverse side plate of the L-shaped structure, and two bolts 12 are vertically inserted into the vertical side plate of the L-shaped structure; a side plate 13 is also provided on the left side of the bottom of the top plate 9, and a butterfly nut 14 is screwed on the bolt 12 after passing through the side plate 13 to the left; a spring 16 is screwed on the bolt 12, and both ends of the spring 16 abut between the side plate 13 and the vertical side plate of the transverse clamping block 11, and the left and right position of the transverse clamping block 11 can be adjusted by rotating the butterfly nut 14, so as to better clamp the shunt pipe 3.

[0028] In order to more smoothly guide the left and right movement of the transverse block 11, in this embodiment, Figure 1 , Figure 4As shown, the side plate 13 is provided with a transverse hole, and a round rod 15 is vertically provided on the left side wall of the vertical side plate of the transverse clamping block 11, and the round rod 15 is adapted to the transverse hole.

[0029] In order to make this device suitable for processing and using multiple types of branch pipes, further, refer to Figure 1 , Figure 4 , Figure 5 As shown, in this solution, the horizontal plate 8 includes a fixed block 801 and a matching block 802, and the fixed block 801 and the vertical plate 7 are an integral structure; the matching block 802 is detachably installed on the front side of the fixed block 801, and a U-shaped groove one adapted to the main pipe 1 is opened on the front of the matching block 802; another through hole adapted to the pressure rod 10 is also opened on the top plate 9, and the two through holes on the top plate 9 are located on the same horizontal straight line.

[0030] In this embodiment, a truncated cone block 1002 is provided after the top of the pressure rod 10 passes through the top plate 9 upwards; the bottom of the truncated cone block 1002 is threadedly connected to the top of the pressure rod 10 .

[0031] Further, in this solution, the bottom of the vertical plate 7 can be slidably mounted on the base 6; a cylinder 17 is provided on the rear side of the base 6, and the telescopic end of the cylinder 17 is vertically connected to the bottom of the vertical plate 7 to push the vertical plate 7 to move forward and backward on the base 6; Figure 2 As shown, when the cylinder 17 pushes the vertical plate 7 to move to the front of the base 6, the docking position of the three-way pipe 2 of the Y-shaped branch pipe and the branch pipe 1 3 and the branch pipe 2 4 can be moved into the U-shaped induction coil 5.

[0032] In this embodiment, reference Figure 5 As shown, a locking block 1003 is vertically provided at the middle of the pressure rod 10, and a slot is opened in the through hole corresponding to the locking block 1003. The design advantage of the locking block 1003 is that after the pressure rod 10 passes through the through hole upward, the position of the locking block 1003 is rotated to temporarily move the pressure rod 10 upward. Therefore, in the process of installing the Y-shaped branch pipe, there is no need for a second person to assist in moving the pressure rod 10 upward, which is convenient for one person to operate independently.

[0033] The above is only a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art shall not deviate from the spirit and scope of the present invention, and shall be within the scope of protection of the claims attached to the present invention.

Claims

1. An air conditioner branch pipe welding processing device, used for a tee pipe (2) of a Y-shaped branch pipe and a first branch pipe (3) and a second branch pipe (4), wherein a main pipe (1) is welded to the bottom of the tee pipe (2), characterized in that: It comprises a U-shaped induction coil (5) and a fixing bracket which are arranged relatively; The fixing bracket comprises a vertical plate (7), a horizontal plate (8) vertically arranged on the front side of the middle of the vertical plate (7), and a top plate (9) arranged on the top of the vertical plate (7); The bottom of the vertical plate is mounted on the base (6) so as to be movable forward and backward. A through hole is provided on the right side of the top plate (9). A pressure rod (10) is provided in the through hole so as to be able to slide up and down. A conical block (1001) is provided downward at the bottom end of the pressure rod (10); A U-shaped notch that matches the main pipe (1) is formed at the front of the horizontal plate (8), so that the Y-shaped branch pipe can be inserted into the U-shaped notch. A transverse clamping block (11) is also provided on the left side of the pressure rod (10), and a U-shaped notch 2 adapted to the diverter pipe 1 (3) is provided on the right side of the transverse clamping block (11). The transverse clamping block (11) is installed at the bottom of the top plate (9) so as to be adjustable leftward and rightward. Before welding, the main pipe (1) and the first shunt pipe (3) are correspondingly mounted in the first U-shaped groove and the second U-shaped groove, and the bottom of the conical block (1001) is inserted downward into the second shunt pipe (4).

2. The air conditioning branch pipe welding processing device according to claim 1 is characterized in that: The transverse clamping block (11) is an L-shaped structure, the second U-shaped notch is arranged on the outer side of the transverse side plate of the L-shaped structure, and two bolts (12) are vertically inserted on the vertical side plate of the L-shaped structure; A side plate (13) is also provided on the left side of the bottom of the top plate (9), and a butterfly nut (14) is screwed on the left end of the bolt (12) after passing through the side plate (13) to the left; A spring (16) is screwed onto each of the bolts (12), and both ends of the spring (16) abut between the side plate (13) and the vertical side plate of the transverse clamping block (11).

3. The air conditioning branch pipe welding processing device according to claim 2 is characterized in that: A round rod (15) is vertically arranged on the left side wall of the vertical side plate of the horizontal clamping block (11), and the side plate (13) is provided with a horizontal hole, and the round rod (15) is adapted to the horizontal hole. After installation, the left end of the round rod (15) penetrates the side plate (13) to the left.

4. The air conditioning branch pipe welding processing device according to claim 3 is characterized in that: The horizontal plate (8) comprises a fixing block (801) and a matching block (802), and the fixing block (801) and the vertical plate (7) are an integral structure; The matching block (802) is detachably mounted on the front side of the fixed block (801), and a U-shaped notch that matches the main pipe (1) is provided on the front of the matching block (802).

5. The air conditioning branch pipe welding processing device according to claim 3 is characterized in that: The top of the pressure rod (10) passes through the top plate (9) upwards and is provided with a truncated cone block (1002); The bottom of the truncated cone block (1002) is threadedly connected to the top of the pressure rod (10).

6. The air conditioning branch pipe welding processing device according to claim 5, characterized in that: A locking block (1003) is vertically arranged in the middle of the pressure rod (10), and a slot is provided in the through hole corresponding to the locking block (1003), so that the locking block (1003) can pass through the top plate (9) downward or upward from the slot.

7. The air conditioner branch pipe welding processing device according to claim 6 is characterized in that: Another through hole matched with the pressure rod (10) is also provided on the top plate (9), and the two through holes on the top plate (9) are located on the same horizontal straight line.

8. An air conditioning branch pipe welding processing device according to any one of claims 2 to 7, characterized in that: The bottom of the vertical plate (7) is slidably mounted on the base (6). A cylinder (17) is provided on the rear side of the base (6), and the telescopic end of the cylinder (17) is vertically connected to the bottom of the vertical plate (7) so as to push the vertical plate (7) to move forward and backward on the base (6); When the cylinder (17) pushes the vertical plate (7) to move to the front of the base (6), the docking position of the three-way pipe (2) of the Y-shaped branch pipe and the first branch pipe (3) and the second branch pipe (4) can be moved into the U-shaped induction coil (5).

Images