Welding mechanism for liquid accumulator brazing

Abstract

The invention relates to the technical field of compressors, and discloses a liquid accumulator brazing welding mechanism which comprises a rack, a rotating assembly and a pressing assembly are arranged at the top of the rack, the pressing assembly is used for pressing a liquid accumulator to be welded, a wire feeding pipe is arranged at the lower end of the rotating assembly, and a heating assembly is arranged in the middle of the rack in a lifting mode. The heating assembly is used for heating the welding wire in the wire feeding pipe so that the liquid storage device can be welded. When the compressor welding device is adopted for welding, a compressor body is firstly placed on the welding tray, then the pressing assembly moves downwards to press the liquid storage device, brazing filler metal welding wires are conveyed under the action of the wire feeder, brazing filler metal is heated and melted under the action of the heating assembly, and circumferential feeding of pipelines to be connected is achieved under the action of the rotating assembly; rapid welding between the two pipelines to be connected is achieved, and the welding efficiency is improved. Due to the fact that molten brazing filler metal is fed in a rotating mode, it is guaranteed that the gap between the two pipelines to be welded is completely filled with the brazing filler metal, and the welding quality is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of compressors, and in particular to a welding mechanism for brazing a liquid reservoir. Background Art

[0002] As an important component of the compressor, the liquid receiver needs to be connected to the compressor body through a pipeline, and the pipeline is connected by brazing.

[0003] However, the current welding mechanism has low welding efficiency and poor welding quality. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a welding mechanism for brazing a liquid reservoir, which improves the welding quality between the liquid reservoir and the compressor body and improves the welding efficiency.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A welding mechanism for brazing a liquid reservoir, wherein a compressor body is placed on a welding tray during welding, and comprises a frame, wherein a rotating assembly and a clamping assembly are provided on the top of the frame, wherein the clamping assembly is used to clamp the liquid reservoir to be welded, and a wire feeding tube is provided at the lower end of the rotating assembly. A heating assembly is provided in a liftable manner in the middle of the frame, wherein the heating assembly is used to heat the welding wire in the wire feeding tube to realize welding of the liquid reservoir.

[0007] Preferably, a connecting plate is provided at the lower end of the rotating assembly, and wire feeding tube connecting plates are provided at both ends of the connecting plate respectively, and a wire feeding tube is provided on each of the wire feeding tube connecting plates with an adjustable angle.

[0008] Preferably, a plurality of first connection holes are provided on the wire feeding tube connection plate;

[0009] It also includes a fixing block, one side of which is provided with a fixing groove extending to both ends thereof, the fixing groove is used to accommodate the wire feeding tube, one end of the fixing block is provided with a second connecting hole, the other end of the fixing block is provided with an arc-shaped waist hole, the second connecting hole is connected to one of the first connecting holes, and the arc-shaped waist hole is connected to another second connecting hole, so as to realize the angle adjustment and fixation of the wire feeding tube.

[0010] Preferably, a fixing plate is provided at the upper end of the frame, the other end of the fixing plate is connected to the pressing assembly, and the rotating assembly is arranged in the middle of the fixing plate;

[0011] The clamping assembly includes a clamping cylinder arranged on the fixed plate and telescopic guide sleeves arranged on both sides of the clamping cylinder, telescopic rods are inserted into the telescopic guide sleeves, the upper ends of the two telescopic rods are connected to the piston rod of the clamping cylinder, and the lower ends of the two telescopic rods are connected to clamping blocks.

[0012] Preferably, the frame is provided with a first slide rail extending along its length direction, the first slide rail is slidably connected with a lifting adapter plate, the lifting adapter plate is connected with a first screw rod, the upper end of the first screw rod is connected with a first motor, and the fixed plate is connected to the lifting adapter plate.

[0013] Preferably, the frame is provided with a second slide rail extending along its length direction, the second slide rail is slidably connected to a seat plate, one end of the seat plate is connected to a support plate, the heating assembly is arranged on the support plate, the other end of the seat plate is connected to a screw nut, the screw nut is connected to a second screw, and the upper end of the second screw is connected to a second motor.

[0014] Preferably, a translation cylinder is fixedly provided on the support plate, a clamping seat is connected to the piston rod of the translation cylinder, a high-frequency head is fixedly provided on the clamping seat, one end of the high-frequency head is connected to a welding head, and the welding head is used to heat the welding wire in the wire feeding tube.

[0015] Preferably, it comprises a base, and the frame is movably arranged on the base via a translation assembly.

[0016] Preferably, the translation assembly includes a slide plate and a third slide rail, there are two third slide rails, which are relatively arranged on the base, a slider is slidably connected to the third slide rail, both ends of the slide plate are respectively connected to the relatively arranged sliders, a driving seat is provided in the middle of the slide plate, a third screw rod is threadedly connected to the driving seat, and one end of the third screw rod is connected to a handwheel.

[0017] Preferably, the wire feeding tube includes a tube body, the rotating assembly is connected to the tube body, a discharge head is provided at the lower end of the tube body, the discharge head includes a cylindrical connecting part and a discharge part, the inner diameter of the connecting part is larger than the inner diameter of the discharge part, and the connecting part and the discharge part are connected by a truncated cone-shaped transition part, and the connecting part is connected to the tube body.

[0018] Compared with the prior art, the welding mechanism for brazing a liquid reservoir in the embodiment of the present invention has the following beneficial effects: by arranging a rotating assembly and a clamping assembly on the top of the frame, a wire feeding tube is arranged at the lower end of the rotating assembly, and a heating assembly for heating the welding wire in the wire feeding tube can be raised and lowered in the middle of the frame. When welding the liquid reservoir, the compressor body is first placed on the welding tray, and then the clamping assembly is moved down to clamp the liquid reservoir. The brazing wire is transported by the wire feeder, and the brazing material is heated and melted by the heating assembly. Under the action of the rotating assembly, the pipes to be connected are fed circumferentially, so that the two pipes to be connected are quickly welded, thereby improving the welding efficiency. At the same time, since the molten brazing material is fed by rotation, it is ensured that the gap between the two pipes to be welded is completely filled with the brazing material, thereby ensuring the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is an axonometric view of the welding mechanism for brazing a liquid reservoir according to the present invention.

[0020] Figure 2 It is a front view of the welding mechanism for soldering a liquid reservoir according to the present invention.

[0021] Figure 3 The schematic diagram is a structural diagram of the translation assembly of the welding mechanism for liquid reservoir brazing of the present invention with the outer cover removed.

[0022] Figure 4 It is a structural schematic diagram of the rotating structure and the pressing mechanism of the welding mechanism for brazing the liquid reservoir of the present invention.

[0023] Figure 5 The present invention is a schematic diagram of the assembly structure of the connecting plate and the wire feeding tube of the welding mechanism for liquid reservoir brazing.

[0024] Figure 6 It is a schematic structural diagram of a fixing block of a welding mechanism for brazing a liquid reservoir according to the present invention.

[0025] Among them: 1-frame, 2-rotating assembly, 3-pressing assembly, 4-wire feeding tube, 5-heating assembly, 6-connecting plate, 7-wire feeding tube connecting plate, 8-fixing block, 9-fixing plate, 10-pressing cylinder, 11-telescopic guide sleeve, 12-first connecting hole, 13-pressing block, 14-fixing groove, 15-second connecting hole, 16-arc waist hole, 17-first slide rail, 18-first screw rod, 19-first motor, 20- The second slide rail, 21-seat plate, 22-support plate, 23-second screw rod, 24-second motor, 25-translational cylinder, 26-high frequency head, 27-welding head, 28-base, 29-slide plate, 30-third slide rail, 31-slider, 32-third screw rod, 33-hand wheel, 34-tube body, 35-discharging head, 36-connecting part, 37-discharging part, 38-transition part, 40-compressor body, 41-liquid reservoir. DETAILED DESCRIPTION

[0026] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0027] like Figure 1-2 As shown, a welding mechanism for brazing a liquid reservoir according to a preferred embodiment of the present invention, during welding, a compressor body 40 is placed on a welding tray, and the welding tray is a prior art and will not be described in detail here. The welding mechanism for brazing a liquid reservoir comprises a frame 1, and a rotating assembly 2 and a clamping assembly 3 are provided on the top of the frame 1, and the clamping assembly 3 is used to clamp a liquid reservoir 41 to be welded, and a wire feeding tube 4 is provided at the lower end of the rotating assembly 2, that is, the rotating assembly 2 is used to drive the wire feeding tube 4 to rotate, and a motor can be directly used. A heating assembly 5 is provided in a liftable manner in the middle of the frame 1, and the heating assembly 5 is used to heat the welding wire in the wire feeding tube 4 to achieve welding of the liquid reservoir 41.

[0028] The welding mechanism for brazing the liquid reservoir based on the above technical features is provided with a rotating assembly 2 and a clamping assembly 3 on the top of the frame 1, a wire feeding tube 4 is provided at the lower end of the rotating assembly 2, and a heating assembly 5 for heating the welding wire in the wire feeding tube 4 can be lifted and lowered in the middle of the frame 1. When welding the liquid reservoir 41, the compressor body 40 is first placed on the welding tray, and then the clamping assembly 3 is moved down to clamp the liquid reservoir 41. The brazing wire is transported by the wire feeder, and the brazing material is heated and melted by the heating assembly 5. The circumferential feeding of the pipes to be connected is realized by the rotating assembly 2, so that the two pipes to be connected are quickly welded, thereby improving the welding efficiency. At the same time, since the molten brazing material is fed by rotation, it is ensured that the gap between the two pipes to be welded is completely filled with the brazing material, thereby ensuring the welding quality.

[0029] Please refer to the attached Figure 4-5 In this embodiment, in order to increase the welding speed, two wire feeding tubes 4 can be used. In the specific setting, a connecting plate 6 can be set at the lower end of the rotating assembly 2, and wire feeding tube connecting plates 7 are respectively provided at both ends of the connecting plate 6. Each wire feeding tube connecting plate 7 is provided with a wire feeding tube 4 with an adjustable angle. After the two wire feeding tubes 4 are set, it is necessary to ensure that the distance between the discharge ends of the two wire feeding tubes 4 is adapted to the outer diameter of the pipe to be connected, that is, the discharge ports of the wire feeding tubes 4 need to correspond to the gap between the two pipes to be connected. Since the outer diameters of the pipes to be connected are different for different compressors, it is necessary to adjust the angle between the two wire feeding tubes 4 for different products to ensure that the distance between the discharge ports of the two wire feeding tubes 4 corresponds to the pipe to be connected.

[0030] Please also refer to the attached Figure 6 Specifically, the wire feeding tube connecting plate 7 is provided with a plurality of first connecting holes 12; a fixing block 8 is also provided, one side of the fixing block 8 is provided with a fixing groove 14 extending to both ends thereof, the fixing groove 14 is used to accommodate the wire feeding tube 4, one end of the fixing block 8 is provided with a second connecting hole 15, the other end of the fixing block 8 is provided with an arc-shaped waist hole 16, the second connecting hole 15 is connected to one of the first connecting holes 12, and the arc-shaped waist hole 16 is connected to another second connecting hole 15, so as to achieve the angle adjustment and fixation of the wire feeding tube 4. That is, when connecting, the wire feeding tube 4 is first installed in the fixing groove 14, and then the second connecting hole 15 is connected to one of the first connecting holes 12, and then the fixing block 8 is rotated to adjust the angle of the wire feeding tube 4. After the angle is adjusted, the arc-shaped waist hole 16 can be connected to a corresponding second connecting hole 15 to achieve the fixation of the fixing block 8, thereby achieving the angle adjustment and fixation of the wire feeding tube 4. During specific adjustment, it is only necessary to ensure the distance between the discharge ports of the two wire feeding tubes 4. During adjustment, the two wire feeding tubes 4 cooperate with each other for adjustment. If after adjustment through the arc waist hole 16, that is, when the angle can no longer be adjusted, it can also be adjusted by adjusting the connection height between the wire feeding tube 4 and the fixed block 8. After the angles of the two wire feeding tubes 4 are determined, the distance between the two is different at different heights, so fine-tuning can be performed through height adjustment to ensure the position accuracy of the wire feeding tube 4.

[0031] Please refer to the attached Figure 4 In this embodiment, a fixing plate 9 is provided at the upper end of the frame 1, the other end of the fixing plate 9 is connected to the clamping assembly 3, and the rotating assembly 2 is arranged in the middle of the fixing plate 9. Specifically, the clamping assembly 3 includes a clamping cylinder 10 provided on the fixing plate 9 and telescopic guide sleeves 11 provided on both sides of the clamping cylinder 10, a telescopic rod is inserted into the telescopic guide sleeve 11, the upper ends of the two telescopic rods are connected to the piston rod of the clamping cylinder 10, and the lower ends of the two telescopic rods are connected to a clamping block 13, and the clamping block 13 is provided with a pressing groove adapted to the outer wall of the liquid reservoir 41. When the liquid reservoir 41 needs to be clamped, the clamping cylinder 10 drives the clamping block 13 to move downward so that the pressing groove clamps the liquid reservoir 41.

[0032] In addition, during use, after the relative position between the two wire feeding tubes 4 is determined, for compressors of the same specification, the relative position between the two wire feeding tubes 4 is fixed, but since the liquid reservoir 41 needs to be loaded and unloaded, in order to prevent the wire feeding tube 4 from affecting the loading and unloading of the liquid reservoir 41, the wire feeding tube 4 needs to be able to move up and down, that is, during the installation and removal of the liquid reservoir 41, the wire feeding tube 4 needs to be moved up, and when the liquid reservoir 41 is installed, the wire feeding tube 4 needs to be moved down to achieve welding. At the same time, since the wire feeding tube 4 is installed on the fixed plate 9 together with the rotating assembly 2, it only needs to drive the fixed plate 9 to move up and down to realize the up and down movement of the wire feeding tube 4.

[0033] Please refer to the attached Figure 1-3 Specifically, the frame 1 is provided with a first slide rail 17 extending along its length direction, the first slide rail 17 is slidably connected with a lifting adapter plate, the lifting adapter plate is connected with a first screw rod 18, the upper end of the first screw rod 18 is connected with a first motor 19, and the fixed plate 9 is connected with the lifting adapter plate. When the first motor 19 rotates, the first screw rod 18 is driven to rotate, and the first screw rod 18 drives the lifting adapter plate to drive the fixed plate 9 to move up and down, thereby realizing the up and down movement of the wire feeding tube 4.

[0034] In this embodiment, in order to prevent the heating assembly 5 from affecting the installation and removal of the liquid reservoir 41, the heating assembly 5 needs to be able to move horizontally. At the same time, for different welding products, the height of the outlet of the wire feeding tube 4 is different, so the heating assembly 5 also needs to adjust its height at the same time to ensure that the brazing material in the wire feeding tube 4 is heated, so the heating assembly 5 needs to be able to be raised and lowered and moved left and right. Specifically, the frame 1 is provided with a second slide rail 20 extending along its length direction, and the second slide rail 20 is slidably connected to a seat plate 21, one end of the seat plate 21 is connected to a support plate 22, the heating assembly 5 is arranged on the support plate 22, the other end of the seat plate 21 is connected to a screw nut, the screw nut is connected to a second screw 23, and the upper end of the second screw 23 is connected to a second motor 24. A translation cylinder 25 is fixedly provided on the support plate 22, and a clamping seat is connected to the piston rod of the translation cylinder 25, and the heating assembly 5 is arranged on the clamping seat. That is, the lifting and lowering adjustment of the heating component 5 is achieved through the action of the second motor 24 , the second slide rail 20 and the second screw rod 23 ; the left and right adjustment of the horizontal position of the heating component 5 is achieved through the translation cylinder 25 .

[0035] The heating assembly 5 includes a high frequency head 26 disposed on the clamping seat, and a welding head 27 is connected to one end of the high frequency head 26 close to the wire feeding tube 4, and the welding head 27 is used to heat the welding wire in the wire feeding tube 4. The welding heads 27 can be two relatively arranged, and the two wire feeding tubes 4 can be arranged between the two welding heads 27; or the two welding heads 27 can be arranged between the two wire feeding tubes 4, but in this arrangement, the wire feeding tube 4 cannot rotate 360° during the rotation process.

[0036] In some embodiments, since the entire welding process of the liquid reservoir 41 is an integrated welding, each station cooperates with each other, specifically including manual feeding, position correction, preheating, and brazing, each station is relatively fixed, and the position of the welding tray for placing the compressor body 40 is also fixed, which will result in the need to move the wire feeding tube 4 in the front and rear direction corresponding to products of different specifications. At this time, it can be considered that the frame 1 moves forward and backward as a whole, specifically:

[0037] Please refer to the attached Figure 4 The welding mechanism for liquid reservoir brazing also includes a base 28, and the frame 1 is movably arranged on the base 28 through a translation assembly. The translation assembly includes a slide 29 and a third slide rail 30, and the third slide rail 30 is two and relatively arranged on the base 28. The third slide rail 30 is slidably connected with a slider 31, and the two ends of the slide 29 are respectively connected to the sliders 31 arranged relatively. A driving seat is provided in the middle of the slide 29, and a third screw rod 32 is threadedly connected to the driving seat, and one end of the third screw rod 32 is connected to a hand wheel 33. At the same time, two adjustment seats are also provided on the base 28 between the two third slide rails 30, and the third screw rod 32 is rotatably connected to the two adjustment seats, that is, the position of the third screw rod 32 remains unchanged and can only rotate. When it is necessary to adjust the front and rear position of the wire feeding tube 4, the hand wheel 33 is manually rotated, and the third screw rod 32 drives the driving seat to move forward and backward, and the driving seat drives the frame 1 to move forward and backward, so as to realize the front and rear movement of the wire feeding tube 4.

[0038] Please refer to the attached Figure 5In this embodiment, since the discharge port of the wire feeding tube 4 is placed in the gap between the two pipes to be connected during welding, and the gap is generally small, the diameter of the discharge port of the wire feeding tube 4 cannot be too large, and the outer diameter of the solder is generally larger than the inner diameter of the discharge port, so the wire feeding tube 4 can be configured to include a tube body 34 and a discharge head 35, and the rotating assembly 2 is connected to the outer wall of the tube body 34, that is, the fixed groove 14 is sleeved on the outer wall of the tube body 34. The lower end of the tube body 34 is provided with a discharge head 35, and the discharge head 35 includes a cylindrical connecting portion 36 and a discharge portion 37, the inner diameter of the connecting portion 36 is larger than the inner diameter of the discharge portion, and the connecting portion 36 and the discharge portion 37 are connected by a truncated cone transition portion 38, the connecting portion is connected to the tube body 34, and the inner diameter of the discharge portion 37 is equivalent to the gap between the two pipes to be welded.

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A welding mechanism for liquid receiver brazing, wherein the compressor body is placed on a welding tray during welding, characterized in that: It comprises a frame, the top of which is provided with a rotating assembly and a clamping assembly, the clamping assembly is used to clamp the liquid reservoir to be welded, the lower end of the rotating assembly is provided with a wire feeding tube, the middle part of the frame is provided with a heating assembly which can be raised and lowered, the heating assembly is used to heat the welding wire in the wire feeding tube to realize welding of the liquid reservoir.

2. The welding mechanism for liquid storage brazing according to claim 1, characterized in that: A connecting plate is provided at the lower end of the rotating assembly, and wire feeding tube connecting plates are provided at both ends of the connecting plate respectively. A wire feeding tube is provided on each of the wire feeding tube connecting plates so that the angle thereof can be adjusted.

3. The welding mechanism for liquid storage brazing according to claim 2, characterized in that: The wire feeding tube connecting plate is provided with a plurality of first connecting holes; It also includes a fixing block, one side of which is provided with a fixing groove extending to both ends thereof, the fixing groove is used to accommodate the wire feeding tube, one end of the fixing block is provided with a second connecting hole, the other end of the fixing block is provided with an arc-shaped waist hole, the second connecting hole is connected to one of the first connecting holes, and the arc-shaped waist hole is connected to another second connecting hole, so as to realize the angle adjustment and fixation of the wire feeding tube.

4. The welding mechanism for liquid storage brazing according to claim 1, characterized in that: A fixing plate is provided at the upper end of the frame, the other end of the fixing plate is connected to the pressing assembly, and the rotating assembly is arranged in the middle of the fixing plate; The clamping assembly includes a clamping cylinder arranged on the fixed plate and telescopic guide sleeves arranged on both sides of the clamping cylinder, telescopic rods are inserted into the telescopic guide sleeves, the upper ends of the two telescopic rods are connected to the piston rod of the clamping cylinder, and the lower ends of the two telescopic rods are connected to clamping blocks.

5. The welding mechanism for liquid storage brazing according to claim 4, characterized in that: The frame is provided with a first slide rail extending along its length direction, the first slide rail is slidably connected with a lifting adapter plate, the lifting adapter plate is connected with a first screw rod, the upper end of the first screw rod is connected with a first motor, and the fixed plate is connected to the lifting adapter plate.

6. The welding mechanism for liquid storage brazing according to any one of claims 1 to 5, characterized in that: The frame is provided with a second slide rail extending along its length direction, the second slide rail is slidably connected to a seat plate, one end of the seat plate is connected to a support plate, the heating component is arranged on the support plate, the other end of the seat plate is connected to a screw nut, the screw nut is connected to a second screw, and the upper end of the second screw is connected to a second motor.

7. The welding mechanism for liquid storage brazing according to claim 6, characterized in that: A translation cylinder is fixedly arranged on the support plate, a clamping seat is connected to the piston rod of the translation cylinder, a high-frequency head is fixedly arranged on the clamping seat, a welding head is connected to one end of the high-frequency head, and the welding head is used to heat the welding wire in the wire feeding tube.

8. The welding mechanism for liquid storage brazing according to any one of claims 1 to 5, characterized in that: It comprises a base, and the frame is movably arranged on the base through a translation assembly.

9. The welding mechanism for liquid storage brazing according to claim 8, characterized in that: The translation assembly includes a slide plate and a third slide rail. There are two third slide rails, which are relatively arranged on the base. A slider is slidably connected to the third slide rail. Both ends of the slide plate are respectively connected to the relatively arranged sliders. A driving seat is provided in the middle of the slide plate. A third screw rod is threadedly connected to the driving seat. One end of the third screw rod is connected to a handwheel.

10. The welding mechanism for liquid storage brazing according to any one of claims 1 to 5, characterized in that: The wire feeding tube includes a tube body, the rotating assembly is connected to the tube body, a discharge head is provided at the lower end of the tube body, the discharge head includes a cylindrical connecting part and a discharge part, the inner diameter of the connecting part is larger than the inner diameter of the discharge part, and the connecting part and the discharge part are connected by a truncated cone transition part, and the connecting part is connected to the tube body.

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