A fully automatic assembly machine for connecting pipe fittings

Abstract

This utility model relates to a fully automatic assembly machine for connecting pipe fittings, including a support base plate. A turntable is rotatably connected to the support base plate, and multiple sets of assembly carriers are evenly distributed around the rotation center of the turntable. Correspondingly, the assembly carriers on the support base plate are arranged circumferentially with a welding ring feeding station, a copper pipe feeding station, and a combination stamping station. The welding ring feeding station is equipped with a welding ring feeding assembly for conveying welding rings one by one to the assembly carrier. The copper pipe feeding station is equipped with a copper pipe feeding assembly for transferring copper pipes and vertically inserting them into the assembly carrier. The combination stamping station is equipped with a combination assembly assembly for conveying an iron cover to the assembly position and inserting a copper pipe with a welding ring inserted into an opening in the side wall of the iron cover. This fully automatic assembly machine can automate the feeding, inspection, position correction, combination stamping, and unloading processes in the assembly process without human intervention, effectively reducing labor costs.

Description

Technical Field

[0001] This utility model relates to the field of automation equipment, specifically a fully automatic assembly machine for connecting pipe fittings. Background Technology

[0002] Currently, some connecting pipe structures include metal iron caps and copper pipes. When assembling these connecting pipes, the copper pipes need to be manually inserted into the openings on the side wall of the iron caps for pre-fixation. Then, the assembled connecting pipes are manually placed on a stamping machine, and one end of the copper pipe is completely stamped into the iron cap. Finally, a welding ring is placed on the outside of the copper pipe, so that the welding ring is close to the joint between the copper pipe and the iron cap, for subsequent welding and fixing.

[0003] The entire process, from placing, inserting, fitting, and collecting the parts, is done manually. This not only results in low production efficiency and high costs, but also easily leads to fatigue and injury due to manual operation. Therefore, further improvement is necessary. Utility Model Content

[0004] The purpose of this utility model is to solve the above-mentioned existing problems and provide a fully automatic assembly machine for connecting pipe fittings with a simple and reasonable structure. Its main function is to achieve full automation of material feeding, inspection, position correction, copper pipe stamping and material discharge in the assembly process.

[0005] A fully automatic assembly machine for connecting pipe fittings includes a support base plate, on which a turntable is rotatably connected. Multiple sets of assembly carriers are evenly distributed around the turntable's rotation center. Correspondingly arranged on the support base plate are a welding ring feeding station, a copper pipe feeding station, and a combined stamping station. The welding ring feeding station is equipped with a welding ring feeding assembly for conveying welding rings one by one onto the assembly carriers. The copper pipe feeding station is equipped with a copper pipe feeding assembly for transferring copper pipes and vertically inserting them into the assembly carriers. The combined stamping station is equipped with a combined assembly assembly for conveying an iron cap to the assembly position and inserting a copper pipe fitted with a welding ring into an opening in the side wall of the iron cap.

[0006] The objective of this utility model can also be achieved by the following technical measures:

[0007] As a more specific solution, a welding ring alignment station is also arranged between the welding ring loading station and the copper tube loading station. The welding ring alignment station is equipped with a welding ring pressing mechanism for adjusting the position of the welding ring on the assembly carrier.

[0008] A pressing station is also arranged between the copper tube loading station and the combined stamping station. The pressing station is equipped with a copper tube pressing mechanism for pressing down the copper tube on the assembly carrier and for passing the welding ring through the copper tube.

[0009] As a further embodiment, the combined assembly includes an iron cover fixture fixed to the bearing base plate, an iron cover feeding mechanism located on the right side of the iron cover fixture for conveying the iron cover to the iron cover fixture, a rear copper tube transfer mechanism for transferring copper tubes from the assembly carrier to the upper side of the iron cover, an iron cover correction mechanism located on the front side of the iron cover fixture for fixing the iron cover and controlling the axial rotation of the iron cover, an opening positioning mechanism located on the left side of the iron cover fixture for detecting the position of the opening on the upper sidewall of the iron cover, and a copper tube stamping mechanism located on the upper side of the iron cover fixture for inserting copper tubes into the openings.

[0010] As a further embodiment, the welding ring feeding assembly includes a welding ring feeding mechanism and a welding ring feeding mechanism;

[0011] The welding ring feeding mechanism includes a welding ring conveying seat, a welding ring pusher rod, and a welding ring pushing device. The welding ring conveying seat has a welding ring conveying groove facing the assembly carrier and a welding ring inlet that is laterally connected to the welding ring conveying groove. The welding ring pusher rod is slidably connected in the welding ring conveying groove, and the rear end of the welding ring pusher rod is drivenly connected to the welding ring pushing device.

[0012] The welding ring feeding mechanism includes a welding ring vibrating plate and a welding ring discharge channel connected to the welding ring vibrating plate. The discharge end of the welding ring discharge channel is connected to the welding ring inlet.

[0013] As a further embodiment, the copper tube feeding assembly includes a copper tube feeding mechanism, a copper tube rotating mechanism, and a front copper tube transfer mechanism.

[0014] The copper tube feeding mechanism includes a copper tube conveying seat, a copper tube pusher rod, and a copper tube pushing device. The copper tube conveying seat has an upward-opening copper tube conveying groove. A copper tube loading box is fixedly connected to the upper side of the copper tube conveying seat. The discharge port at the bottom of the copper tube loading box is connected to the copper tube conveying groove. The copper tube pusher rod is slidably connected in the copper tube conveying groove, and the rear end of the pusher rod is drivenly connected to the copper tube pushing device.

[0015] The copper tube rotating mechanism includes a rotating cylinder located between the copper tube conveying seat and the turntable. A copper tube sleeve is fixedly connected to the output end of the rotating cylinder. The copper tube sleeve is driven by the rotating cylinder to reciprocate between the horizontal and vertical positions. When the copper tube sleeve is in the horizontal position, it is coaxially arranged with the copper tube conveying groove.

[0016] As a further embodiment, the iron cover correction mechanism includes a rotary motor and a correction motion device that controls the rotary motor to move back and forth relative to the iron cover tooling seat. A chuck is fixedly connected to the output end of the rotary motor, and two or more iron cover jaws that move relative to each other are connected to the chuck. The iron cover jaws perform an outward support movement to clamp the iron cover.

[0017] As a further embodiment, the hole positioning mechanism includes a needle seat, a hole positioning pin elastically connected to the needle seat, and a needle seat movement device for controlling the movement of the needle seat. The needle seat is provided with a position sensing element, and the hole positioning pin is fixed with a trigger part that cooperates with the position sensing element. When the hole positioning pin is inserted into the hole of the iron cover, the trigger part activates the trigger signal of the position sensing element.

[0018] As a further embodiment, the copper tube stamping mechanism includes a stamping bracket, on which is a mounting platform placed on the upper side of the iron cover fixture. A stamping cylinder is fixed on the mounting platform, and the piston of the stamping cylinder extends axially downward toward the iron cover fixture and is fixedly connected to a stamping needle that moves up and down.

[0019] The middle position of the stamping cylinder is provided with a piston shaft sensor that is linked to the rear copper tube transfer mechanism. The piston shaft sensor cooperates with the piston shaft of the stamping cylinder.

[0020] As a further embodiment, the welding ring pressing mechanism includes a welding ring pressing bracket, a welding ring pressing cylinder is fixedly connected to the welding ring pressing bracket, and a welding ring pressing needle is provided on the piston shaft of the welding ring pressing cylinder.

[0021] The copper tube pressing mechanism includes a copper tube pressing bracket, a copper tube pressing cylinder is fixedly connected to the copper tube pressing bracket, a copper tube pressing head is provided on the piston shaft of the copper tube pressing cylinder, and the bottom of the copper tube pressing head is provided with a pressing inner conical surface.

[0022] As a further embodiment, the assembly carrier includes a carrier base, in which a vertically sliding copper tube positioning pin is elastically connected. The copper tube positioning pin has a copper tube limiting surface in the middle. The carrier base has a guide through hole corresponding to the tip of the copper tube positioning pin, which is suitable for the copper tube to pass through. The guide through hole has a circumferentially arranged welding ring bearing surface on its wall.

[0023] The beneficial effects of this utility model are as follows:

[0024] This utility model discloses a fully automatic assembly machine for connecting pipe fittings. This automatic copper pipe assembly equipment can fully automate the feeding, inspection, position correction, assembly and unloading processes in the assembly process without human intervention. It not only effectively reduces labor costs and avoids problems such as fatigue and injury during manual operation, but also the entire assembly process is carried out in a continuous manner with short intervals, resulting in high production efficiency. Attached Figure Description

[0025] Figure 1 This is a top-view structural diagram of the fully automatic assembly machine of this utility model.

[0026] Figure 2 This is a three-dimensional structural diagram of the fully automatic assembly machine of this utility model.

[0027] Figure 3 This is a schematic diagram of the welding ring feeding mechanism of this utility model.

[0028] Figure 4 This is a schematic diagram of the copper tube feeding mechanism of this utility model.

[0029] Figure 5 This is a schematic diagram showing the position of the copper tube before and after rotation according to this utility model.

[0030] Figure 6 This is a schematic diagram of the iron cover correction mechanism of this utility model.

[0031] Figure 7 This is a schematic diagram of the hole positioning mechanism of this utility model.

[0032] Figure 8 This is a schematic diagram of the iron cover of this utility model before correction and its engagement with the hole positioning pin.

[0033] Figure 9 This is a schematic diagram showing the alignment of the iron cover of this utility model with the positioning pin for the opening.

[0034] Figure 10 This is a schematic diagram of the copper tube transfer mechanism of this utility model.

[0035] Figure 11 This is a schematic diagram of the stamping structure of the copper tube stamping mechanism of this utility model.

[0036] Figure 12 This is a schematic diagram of the iron cover tooling base structure of this utility model.

[0037] Figure 13 This is a schematic diagram showing the stamping assembly of the welding ring, copper tube, and iron cap of this utility model before and after.

[0038] Figure 14 This is a schematic diagram of the welding ring pressing mechanism and the copper tube pressing mechanism of this utility model.

[0039] Figure 15 This is a cross-sectional structural diagram of the assembly carrier of this utility model. Detailed Implementation

[0040] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0041] like Figures 1 to 13As shown, a fully automatic assembly machine for connecting pipe fittings includes a support base plate 1, on which a turntable 2 is rotatably connected. Multiple sets of assembly carriers 3 are evenly distributed around the rotation center of the turntable 2. Corresponding to the assembly carriers 3, the support base plate 1 has a welding ring feeding station, a copper pipe feeding station, and a combination stamping station arranged circumferentially. The welding ring feeding station is provided with a welding ring feeding assembly 12 for conveying welding rings one by one to the assembly carriers 3. The copper pipe feeding station is provided with a copper pipe feeding assembly 13 for transferring copper pipes and vertically inserting them into the assembly carriers 3. The combination stamping station is provided with a combination assembly 9 for conveying iron caps to the assembly position and inserting copper pipes with welding rings inserted into the openings in the side wall of the iron caps.

[0042] This automatic copper tube assembly equipment can fully automate the feeding, inspection, position correction, assembly and unloading processes in the assembly process without human intervention. It not only effectively reduces labor costs and avoids problems such as fatigue and injury during manual operation, but also ensures that the entire assembly process is carried out in a continuous manner with short intervals, resulting in high production efficiency.

[0043] In addition, the arrangement of each workstation around the turntable 2 can effectively reduce the overall volume of the equipment, thereby reducing the space occupancy rate.

[0044] A welding ring alignment station is also arranged between the welding ring loading station and the copper tube loading station. The welding ring alignment station is equipped with a welding ring pressing mechanism 5 for adjusting the position of the welding ring on the assembly carrier 3. The welding ring pressing mechanism 5 ensures that the solder can be placed in the assembly carrier 3.

[0045] A pressing station is also arranged between the copper tube loading station and the combined stamping station. The pressing station is equipped with a copper tube pressing mechanism 8 for pressing down the copper tube on the assembly carrier and for making the welding ring fit over the copper tube. When the copper tube loading assembly 13 places the copper tube on the assembly carrier 3, the copper tube may only hang above the welding ring or the welding ring may be shallowly fitted over the copper tube. However, by pressing the copper tube with the pressing mechanism 8, the copper tube can continue to move downward relative to the welding ring, thereby increasing the depth of the welding ring fitting over the copper tube.

[0046] The combined assembly 9 includes an iron cover fixture 96 fixed on the bearing base plate 1, an iron cover feeding mechanism 91 located on the right side of the iron cover fixture 96 for conveying the iron cover to the iron cover fixture, a rear copper tube transfer mechanism 92 for transferring copper tubes on the assembly carrier to the upper side of the iron cover, an iron cover correction mechanism 93 located on the front side of the iron cover fixture 96 for fixing the iron cover and controlling the axial rotation of the iron cover, an opening positioning mechanism 94 located on the left side of the iron cover fixture 96 for detecting the position of the opening on the upper sidewall of the iron cover, and a copper tube stamping mechanism 95 located on the upper side of the iron cover fixture 96 for inserting copper tubes into the openings.

[0047] By combining the various mechanisms of assembly 9, the copper tube with the welding ring can be inserted into the iron cover, achieving fully automated processing and improving efficiency.

[0048] The welding ring feeding assembly 12 includes a welding ring feeding mechanism 4 and a welding ring feeding mechanism 10;

[0049] The welding ring feeding mechanism 4 includes a welding ring conveying seat 41, a welding ring pusher 42, and a welding ring pushing device. The welding ring conveying seat 41 has a welding ring conveying groove 411 facing the assembly carrier and a welding ring inlet 412 that is laterally connected to the welding ring conveying groove 411. The welding ring pusher 42 is slidably connected in the welding ring conveying groove 411, and the rear end of the welding ring pusher 42 is drivenly connected to the welding ring pushing device.

[0050] The width of the welding ring conveying groove 411 is slightly larger than the diameter of the welding ring, and the width of the welding ring push rod 42 matches that of the welding ring conveying groove 411. The front end of the welding ring conveying groove 411 is provided with a semi-circular notch 421. The semi-circular notch 421 plays a positioning role when pushing the welding ring, so as to avoid the welding ring from colliding or rubbing against the left and right walls of the welding ring conveying groove 411.

[0051] The welding ring pushing device includes a welding ring feeding base 43, on which a third transverse guide rail 44, a welding ring feeding slider 45, and a welding ring feeding cylinder 46 for driving the welding ring feeding slider 45 to slide along the third transverse guide rail 44 are connected. The rear end of the welding ring push rod 42 is fixedly connected to the welding ring feeding slider 45.

[0052] The welding ring feeding mechanism 10 includes a welding ring vibratory plate 1001 and a welding ring discharge channel 1002 connected to the welding ring vibratory plate 1001. The discharge end of the welding ring discharge channel 1002 is connected to the welding ring inlet 412. When vibrated, the welding rings on the welding ring vibratory plate 1001 slide into the welding ring conveying groove 411 along the welding ring discharge channel 1002 and the welding ring inlet 412, and trigger the positioning sensor on the opposite side of the welding ring inlet 412.

[0053] The copper tube feeding assembly 13 includes a copper tube feeding mechanism 6, a copper tube rotating mechanism 7, and a front copper tube transfer mechanism 11.

[0054] The copper tube feeding mechanism 6 includes a copper tube conveying seat 61, a copper tube pusher rod 62, and a copper tube pushing device. The copper tube conveying seat 61 has an upward-opening copper tube conveying groove 611. A copper tube loading box 63 is fixedly connected to the upper side of the copper tube conveying seat 61. The bottom of the copper tube loading box 63 is connected to the copper tube conveying groove 611. The copper tube pusher rod 62 is slidably connected in the copper tube conveying groove 611, and the rear end of the welding ring pusher rod 42 is drivenly connected to the copper tube pushing device.

[0055] The copper tube pushing device includes a copper tube feeding base 64, on which a fourth transverse guide rail 65, a copper tube feeding slider 66, and a copper tube feeding cylinder 67 for driving the copper tube feeding slider 66 to slide along the fourth transverse guide rail 65 are connected. The rear end of the copper tube push rod 62 is fixedly connected to the copper tube feeding slider 66.

[0056] The copper tube loading box 63 is also equipped with a shaking component (not marked in the attached figure), which prevents the copper tube from getting stuck at the bottom discharge port.

[0057] The copper tube rotating mechanism 7 includes a rotating cylinder 71 disposed between the copper tube conveying seat 61 and the turntable. The output end of the rotating cylinder 71 is fixedly connected to a copper tube sleeve 72. The copper tube sleeve 72 is driven by the rotating cylinder 71 to reciprocate between the horizontal and vertical positions. When the copper tube sleeve 72 is in the horizontal position, it is coaxially arranged with the copper tube conveying groove 611. In this embodiment, the copper tube sleeve 72 is driven by the rotating cylinder 71 to achieve a 90° rotation, realizing the conversion between the horizontal and vertical positions, flipping the horizontally fed copper tube to the vertical state, which facilitates the clamping and transfer of the front copper tube transfer mechanism 11.

[0058] The iron cover correction mechanism 93 includes a rotary motor 931 and a correction motion device that controls the rotary motor 931 to move back and forth relative to the iron cover tooling seat 96. A chuck 932 is fixedly connected to the output end of the rotary motor 931. Two or more iron cover jaws 933 that move relative to each other are connected to the chuck 932. The iron cover jaws 933 perform outward support movement to clamp the iron cover.

[0059] The correction motion device includes a correction base plate 934 fixed on the support base plate 1. A second transverse guide rail 935, a correction slider 936 slidably connected to the second transverse guide rail 935, and a transverse correction cylinder 937 are connected to the correction base plate 934. The rotary motor 931 is fixed on the correction slider 936, and the piston shaft of the transverse correction cylinder 937 is connected to the rotary motor 931 for transmission.

[0060] In this embodiment, the chuck 932 is connected to two opposing iron cover claws 933. The iron cover claws 933 are semi-circular arc-shaped. When the iron cover claws 933 are outwardly supported to clamp the iron cover, they can better fit the inner wall of the iron cover and prevent the iron cover claws 933 from scratching the iron cover.

[0061] The opening positioning mechanism 94 includes a needle base 941, an opening positioning needle 942 elastically connected to the needle base 941, and a needle base motion device for controlling the motion of the needle base 941. A position sensing element 943 is provided on the needle base 941, and a trigger portion 9411 cooperating with the position sensing element 943 is fixed on the opening positioning needle 942. When the opening positioning needle 942 is inserted into the opening of the iron cover, the trigger portion 9411 activates the trigger signal of the position sensing element 943.

[0062] Among them, the needle base motion device includes a needle base bracket 944. A needle base transverse cylinder 945 is fixedly connected to the needle base bracket 944. A needle base lifting cylinder 946 is drivingly connected to the piston shaft of the needle base transverse cylinder 945. A needle base connecting plate 947 is fixed to the piston shaft of the needle base lifting cylinder 946, and the needle base 941 is fixed on the needle base connecting plate 947.

[0063] And in this embodiment, the needle base 941 has a "C" - shaped structure. Through holes suitable for the up - and - down sliding of the opening positioning needle 942 are provided in its upper and lower wall portions. The position sensing element 943 is arranged on the side wall portion of the needle base 941. The trigger portion 9411 is limited to slide between the upper and lower wall portions. A return spring 948 is sleeved on the upper part of the opening positioning needle 942, and the return spring 948 abuts between the upper wall portion and the trigger portion 9411, so that the opening positioning needle 942 realizes elastic sliding.

[0064] The front copper tube transfer mechanism 11 and the rear copper tube transfer mechanism 92 have basically the same structure. Both include a transfer bracket 921 fixed on the bearing bottom plate 1. The transfer bracket 921 is connected with a first transverse guide rail 922, a transfer slider 923, and a transverse transfer cylinder 924 for driving the transfer slider 923 to slide along the first transverse guide rail 922. A lifting transfer cylinder 925 is fixed on the transfer slider 923, and a copper tube clamp 926 is drivingly connected to the piston shaft of the lifting transfer cylinder 925.

[0065] The copper tube stamping mechanism 95 includes a stamping bracket 951. An installation platform 952 is provided on the stamping bracket 951 on the upper side of the iron cover tooling seat 96. A stamping cylinder 953 is fixed on the installation platform 952. The piston shaft of the stamping cylinder 953 extends downward towards the iron cover tooling seat 96 and is fixedly connected with an up - and - down moving stamping needle 954.

[0066] A piston shaft inductor 955 linked with the copper tube transfer mechanism 92 is provided at the middle position of the stamping cylinder 953. The piston shaft inductor 955 cooperates with the piston shaft of the stamping cylinder 953. When the piston shaft of the stamping cylinder 953 extends to the position where the stamping needle 954 just presses against the top of the copper tube, the piston shaft inductor 955 is triggered, and the piston shaft inductor 955 controls the copper tube clamp 926 to release the copper tube. This structure avoids the outer wall surface of the copper tube being scratched by the copper tube clamp 926 when the stamping needle 954 further stamps the copper tube.

[0067] The top surface of the iron cover tooling base 96 is provided with an arc groove X for positioning the iron cover. One side of the arc groove X is higher and the other side is lower. The iron cover positioning sensor 961 is provided on the higher side X1. The iron cover feeding mechanism 91 includes an iron cover vibrating plate 911. The iron cover discharge channel 912 of the iron cover vibrating plate 911 is connected to the lower side X2 of the arc groove X.

[0068] When the iron cover on the iron cover vibrating plate 911 rolls from the lower side X2 into the arc groove X, the higher side X1 can also limit the iron cover, preventing the iron cover from rolling out of the iron cover fixture 96 due to inertia.

[0069] A cover limiting plate 97 is fixedly installed on the rear side of the cover fixture 96. The cover limiting plate 97 is provided with a jet nozzle 971 that blows towards the cover fixture 96. A discharge slide 98 that extends outward is fixedly installed on the front side of the cover fixture 96. After the cover and copper tube are assembled, the jet nozzle 971 blows high-pressure gas towards the cover, blowing the cover and copper tube out of the cover fixture 96 and causing them to fall into the discharge slide 98, thus completing the workpiece unloading.

[0070] like Figure 14 As shown, the welding ring pressing mechanism 5 includes a welding ring pressing bracket 51, a welding ring pressing cylinder 52 is fixedly connected to the welding ring pressing bracket 51, and a welding ring pressing needle 53 is provided on the piston shaft of the welding ring pressing cylinder 52; a central blind hole 531 is provided axially inside the welding ring pressing needle 53 to avoid the copper tube positioning needle 32 needle head 322.

[0071] The copper tube pressing mechanism 8 includes a copper tube pressing bracket 81, a copper tube pressing cylinder 82 fixedly connected to the copper tube pressing bracket 81, a copper tube pressing head 83 on the piston shaft of the copper tube pressing cylinder 82, and a pressing inner conical surface 831 at the bottom of the copper tube pressing head 83; when the copper tube pressing head 83 presses against the top of the copper tube, the pressing inner conical surface 831 can play a guiding role, so that the top of the copper tube will not swing left and right when pressing, ensuring that the copper tube can move down concentrically.

[0072] like Figure 15 As shown, the assembly carrier 3 includes a carrier seat 31, an axial inner cavity 301 is provided in the carrier seat 3, and a copper tube positioning pin 32 that penetrates the axial inner cavity 301 is vertically slidably connected on the carrier seat 3.

[0073] The copper tube positioning pin 32 is provided with a support ring 33 at the height of the axial inner cavity 301. The support ring 33 and the axial inner cavity 301 form a linear sliding fit, and the top surface of the support ring 33 forms a copper tube limiting surface 321. A return spring 34 is sleeved on the lower part of the copper tube positioning pin 32. The two ends of the return spring 34 abut against the bottom surface of the axial inner cavity 301 and the support ring 33, thereby realizing elastic sliding.

[0074] The carrier seat 31 has a guide hole 311 for the copper tube positioning needle 322, which is suitable for the copper tube to pass through. The guide hole 311 has a circumferentially arranged welding ring bearing surface 312 on its hole wall.

[0075] Based on the above structure, the working principle of the fully automatic combination machine is as follows:

[0076] Reference Figure 3 As shown, the welding ring C on the welding ring discharge channel 1002 enters the welding ring conveying groove 411 through the welding ring inlet 412. The welding ring pushing device drives the welding ring push rod 42 to slide forward and push the welding ring C out of the front port of the welding ring conveying groove 411. After that, the welding ring C falls naturally and falls into the guide through hole 311 of the assembly carrier 3.

[0077] The assembly carrier 3, on which the welding ring C is placed, rotates to the welding ring alignment station. The welding ring pressing cylinder 52 drives the welding ring pressing needle 53 to press into the guide through hole 311, pushing the welding ring C to be flatly positioned on the welding ring bearing surface 312 (during the natural fall of the welding ring C, the welding ring C may get caught on the needle tip 322).

[0078] Assembly carrier 3 continues to rotate to the copper tube loading station. Copper tube B in copper tube loading box 63 enters copper tube conveying trough 611 through the discharge port. The copper tube pushing device drives copper tube push rod 62 to slide forward and push copper tube B in copper tube conveying trough 611 into copper tube sleeve 72 (copper tube sleeve is in a horizontal position, see reference). Figure 5 (As shown in the left figure), the rotary cylinder 71 drives the copper tube sleeve 72 to rotate to the vertical position, refer to... Figure 5 As shown in the right figure.

[0079] Subsequently, the copper tube clamp 926 of the front copper tube transfer mechanism 11 clamps the copper tube B and transfers it to the upper side of the assembly carrier 3, and vertically inserts the copper tube B into the needle 322 of the copper tube positioning pin 32.

[0080] The assembly carrier 3 with copper tube B inserted rotates to the pressing station. The copper tube pressing mechanism 8 drives the copper tube pressing head 83 to press down the top of the copper tube B, causing the copper tube positioning pin 32 to compress the return spring 34 and sink together with the copper tube B, so that the welding ring C moves to a deeper position in the copper tube B. Then the copper tube pressing head 83 leaves the copper tube B and, under the elastic potential energy of the return spring 32, pushes the copper tube B up again. At the same time, the copper tube B takes the welding ring C away from the welding ring bearing surface 312.

[0081] As the assembly carrier 3 continues to rotate to the combined stamping station, at the same time, the iron cover A rolls from the iron cover vibrating plate 911 along the iron cover discharge channel 912 into the iron cover tooling seat 96 one by one. At this time, the iron cover A is placed on its side and its opening faces the iron cover correction mechanism 93.

[0082] The rotary motor 931 is driven by the correction motion device to move forward to the position of the iron cover tooling seat 96, and then the chuck 932 controls the iron cover jaws 933 to clamp the iron cover A.

[0083] The needle holder 941 is driven by the needle holder moving device to move to the upper side of the iron cover A. Initially, the opening positioning needle 942 elastically presses against the side wall of the iron cover A. (Refer to...) Figure 8 As shown, the trigger part 9411 cooperates with the position sensing element 943 (indicating that the opening A1 of the iron cover A has not reached the designated position).

[0084] Then, the rotary motor 931 operates and drives the iron cover A to rotate axially for correction. When the opening A1 of the iron cover A rotates to face directly upward, the opening positioning pin 942 is inserted into the opening A1 under the potential energy of the return spring 948. (Refer to...) Figure 9 As shown, the trigger part 9411 moves downward and is offset from the position sensing element 943. At this time, the position sensing element 943 sends a signal to control the rotary motor 931 to stop working. Then, the hole positioning pin 942 leaves the iron cover A and moves out of the iron cover fixture 96.

[0085] Reference Figure 11 and Figure 13 As shown in the left figure, the copper tube clamp 926 of the rear copper tube transfer mechanism 92 clamps and moves the copper tube B with the welding ring C attached, placing it on the upper side of the opening A1. Then, the stamping cylinder 953 drives the stamping needle 954 to move downward. When the stamping needle 954 presses against the top surface of the copper tube B, the trigger piston shaft of the stamping cylinder 953 triggers the piston shaft sensor 955, thereby controlling the copper tube clamp 926 to release. Afterward, the stamping needle 954 moves further downward until the copper tube B is pressed into the iron cover A. (Refer to...) Figure 13 As shown in the right figure.

[0086] Finally, the jet nozzle 971 blows high-pressure gas toward the iron cover B, blowing the combined structure of iron cover A and copper tube B out of the iron cover fixture 96 and causing it to fall into the discharge slide 98, thus completing the workpiece unloading.

[0087] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A fully automatic assembly machine for connecting pipe fittings, comprising a support bed (1), characterized in that: A turntable (2) is rotatably connected to the bearing base plate (1). Multiple sets of assembly carriers (3) are evenly distributed around the rotation center of the turntable (2). The corresponding parts of the assembly carriers (3) on the bearing base plate (1) are arranged circumferentially with a welding ring feeding station, a copper tube feeding station and a combined stamping station. The welding ring feeding station is provided with a welding ring feeding assembly (12) for conveying welding rings one by one to the assembly carrier (3). The copper tube feeding station is provided with a copper tube feeding assembly (13) for transferring copper tubes and vertically inserting copper tubes into the assembly carrier (3). The combined stamping station is provided with a combined assembly assembly (9) for conveying the iron cover to the assembly position and inserting the copper tube with the welding ring inserted into the opening in the side wall of the iron cover.

2. A fully automatic assembling machine for connecting pipe fittings according to claim 1, characterized in that: A welding ring alignment station is also arranged between the welding ring loading station and the copper tube loading station. The welding ring alignment station is equipped with a welding ring pressing mechanism (5) for adjusting the position of the welding ring on the assembly carrier (3). A pressing station is also arranged between the copper tube feeding station and the combined stamping station. The pressing station is equipped with a copper tube pressing mechanism (8) for pressing down the copper tube on the assembly carrier and making the welding ring pass through the copper tube.

3. The full-automatic assembling machine for connecting pipe fittings according to claim 1, characterized in that: The combined assembly (9) includes an iron cover fixture (96) fixed on the bearing base plate (1), an iron cover feeding mechanism (91) located on the right side of the iron cover fixture (96) for conveying the iron cover to the iron cover fixture, a rear copper tube transfer mechanism (92) for transferring the copper tube on the assembly carrier to the upper side of the iron cover, an iron cover correction mechanism (93) located on the front side of the iron cover fixture (96) for fixing the iron cover and controlling the axial rotation of the iron cover, an opening positioning mechanism (94) located on the left side of the iron cover fixture (96) for detecting the position of the opening on the upper sidewall of the iron cover, and a copper tube stamping mechanism (95) located on the upper side of the iron cover fixture (96) for inserting the copper tube into the opening.

4. The full-automatic assembling machine for connecting pipe fittings according to claim 1, characterized in that: The welding ring feeding assembly (12) includes a welding ring feeding mechanism (4) and a welding ring feeding mechanism (10). The welding ring feeding mechanism (4) includes a welding ring conveying seat (41), a welding ring pusher (42), and a welding ring pushing device. The welding ring conveying seat (41) has a welding ring conveying groove (411) facing the assembly carrier and a welding ring inlet (412) that is laterally connected to the welding ring conveying groove (411). The welding ring pusher (42) is slidably connected in the welding ring conveying groove (411), and the rear end of the welding ring pusher (42) is drivenly connected to the welding ring pushing device. The welding ring feeding mechanism (10) includes a welding ring vibratory plate (1001) and a welding ring discharge channel (1002) connected to the welding ring vibratory plate (1001). The discharge end of the welding ring discharge channel (1002) is connected to the welding ring inlet (412).

5. The full-automatic assembling machine for connecting pipe fittings according to claim 1, characterized in that: The copper tube feeding assembly (13) includes a copper tube feeding mechanism (6), a copper tube rotating mechanism (7), and a front copper tube transfer mechanism (11). The copper tube feeding mechanism (6) includes a copper tube conveying seat (61), a copper tube pusher rod (62), and a copper tube pushing device. The copper tube conveying seat (61) has an upward-opening copper tube conveying groove (611). A copper tube loading box (63) is fixedly connected to the upper side of the copper tube conveying seat (61). The bottom of the copper tube loading box (63) is connected to the copper tube conveying groove (611). The copper tube pusher rod (62) is slidably connected in the copper tube conveying groove (611), and the rear end of the welding ring pusher rod (42) is drivenly connected to the copper tube pushing device. The copper tube rotating mechanism (7) includes a rotating cylinder (71) located between the copper tube conveying seat (61) and the turntable. The output end of the rotating cylinder (71) is fixedly connected to a copper tube sleeve (72). The copper tube sleeve (72) is driven by the rotating cylinder (71) to reciprocate between the horizontal and vertical positions. When the copper tube sleeve (72) is in the horizontal position, it is coaxially arranged with the copper tube conveying groove (611).

6. A fully automatic pipe fitting assembly machine according to claim 3, wherein: The iron cover correction mechanism (93) includes a rotary motor (931) and a correction motion device that controls the rotary motor (931) to move back and forth relative to the iron cover fixture (96). A chuck (932) is fixedly connected to the output end of the rotary motor (931). Two or more iron cover jaws (933) that move relative to each other are connected to the chuck (932). The iron cover jaws (933) perform an outward support movement to clamp the iron cover.

7. The fully automatic assembly machine for connecting pipe fittings according to claim 3, characterized in that: The opening positioning mechanism (94) includes a needle seat (941), an opening positioning needle (942) elastically connected to the needle seat (941), and a needle seat movement device for controlling the movement of the needle seat (941). The needle seat (941) is provided with a position sensing element (943), and the opening positioning needle (942) is fixed with a trigger part (9411) that cooperates with the position sensing element (943). When the opening positioning needle (942) is inserted into the opening of the iron cover, the trigger part (9411) activates the trigger signal of the position sensing element (943).

8. The fully automatic assembly machine for connecting pipe fittings according to claim 3, characterized in that: The copper tube stamping mechanism (95) includes a stamping bracket (951), and a mounting platform (952) is provided on the stamping bracket (951) and placed on the upper side of the iron cover tooling seat (96). A stamping cylinder (953) is fixed on the mounting platform (952), and the piston of the stamping cylinder (953) extends axially downward toward the iron cover tooling seat (96) and is fixedly connected to a stamping needle (954) that moves up and down. The stamping cylinder (953) is provided with a piston shaft sensor (955) in the middle position, which is linked to the rear copper tube transfer mechanism (92). The piston shaft sensor (955) cooperates with the piston shaft of the stamping cylinder (953).

9. The fully automatic assembly machine for connecting pipe fittings according to claim 2, characterized in that: The welding ring pressing mechanism (5) includes a welding ring pressing bracket (51), a welding ring pressing cylinder (52) is fixedly connected to the welding ring pressing bracket (51), and a welding ring pressing needle (53) is provided on the piston shaft of the welding ring pressing cylinder (52). The copper tube pressing mechanism (8) includes a copper tube pressing bracket (81), a copper tube pressing cylinder (82) is fixedly connected to the copper tube pressing bracket (81), a copper tube pressing head (83) is provided on the piston shaft of the copper tube pressing cylinder (82), and the bottom of the copper tube pressing head (83) is provided with a pressing inner cone surface (831).

10. The fully automatic assembly machine for connecting pipe fittings according to claim 1, characterized in that: The assembly carrier (3) includes a carrier seat (31), and a vertically sliding copper tube positioning pin (32) is elastically connected inside the carrier seat (31). A copper tube limiting surface (321) is provided in the middle of the copper tube positioning pin (32). A guide through hole (311) suitable for copper tube to pass through is opened on the carrier seat (31) corresponding to the needle tip (322) of the copper tube positioning pin (32). A circumferentially arranged welding ring bearing surface (312) is opened on the hole wall of the guide through hole (311).

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