Full-automatic combination machine for connecting pipe fittings

Abstract

The invention relates to a full-automatic combination machine for connecting pipe fittings, which comprises a bearing bottom plate, a turntable is rotatably connected to the bearing bottom plate, a plurality of groups of assembly carriers are uniformly distributed on the turntable around the rotation center of the turntable, and a welding ring feeding station, a copper pipe feeding station and a combined stamping station are annularly arranged on the bearing bottom plate corresponding to the part of the assembly carriers; the welding ring feeding station is provided with a welding ring feeding assembly used for conveying welding rings to the assembling carriers one by one, and the copper pipe feeding station is provided with a copper pipe feeding assembly used for transplanting copper pipes and vertically inserting the copper pipes into the assembling carriers. The combined stamping station is provided with a combined assembling assembly used for conveying the iron cover to an assembling position and inserting the copper pipe sleeved with the welding ring into an opening in the side wall of the iron cover. According to the full-automatic combined machine, full automation of feeding, detection, position correction, combined punching and discharging in the assembling process can be achieved, manual interference is not needed in the whole process, and the labor cost is effectively reduced.

Description

Technical Field

[0001] The present invention relates to the field of automated equipment, and specifically to a fully automatic combination machine for connecting pipe fittings. Background Art

[0002] At present, some connecting pipe fitting structures include an iron cover made of metal material and a copper pipe. When assembling the above-mentioned connecting pipe fittings, it is necessary to manually insert the copper pipe into the opening on the side wall of the iron cover for pre-fixing, then manually place the assembled connecting pipe fittings on a stamping machine, and then completely press one end of the copper pipe into the iron cover. Finally, a welding ring is sleeved outside the copper pipe, and the welding ring is close to the joint seam between the copper pipe and the iron cover for welding and fixing in subsequent processes.

[0003] The entire process, including the placement, insertion, sleeving, and collection of parts, is all completed manually. Not only is the production efficiency low and the cost high, but manual operation is also prone to problems such as fatigue and injury. Therefore, it is necessary to further improve. Summary of the Invention

[0004] The purpose of the present invention is to solve the above existing problems and provide a fully automatic combination machine for connecting pipe fittings with a simple and reasonable structure. Its main function is to fully automate the feeding, detection, position correction, copper pipe stamping, and discharging in the assembly process.

[0005] A fully automatic combination machine for connecting pipe fittings includes a bearing bottom plate. A turntable is rotatably connected to the bearing bottom plate. A plurality of groups of assembly carriers are evenly distributed around the rotation center of the turntable. A welding ring feeding station, a copper pipe feeding station, and a combined stamping station are arranged circumferentially corresponding to some of the assembly carriers on the bearing bottom plate. A welding ring feeding assembly for successively conveying welding rings to the assembly carriers is provided at the welding ring feeding station. A copper pipe feeding assembly for transplanting copper pipes and vertically inserting the copper pipes on the assembly carriers is provided at the copper pipe feeding station. A combined assembly assembly for conveying the iron cover to the assembly position and inserting the copper pipe with a welding ring sleeved thereon into the opening on the side wall of the iron cover is provided at the combined stamping station.

[0006] The purpose of the present invention can also be solved by adopting the following technical measures: As a more specific solution, a welding ring correction station is also arranged between the welding ring feeding station and the copper pipe feeding station. A welding ring pressing mechanism for adjusting the position of the welding ring on the assembly carrier is provided at the welding ring correction station; A pressing station is also arranged between the copper pipe feeding station and the combined stamping station. A copper pipe pressing mechanism for pressing down the copper pipe on the assembly carrier and sleeving the welding ring outside the copper pipe is provided at the pressing station.

[0007] As a further solution, the combined assembly assembly includes an iron cover tooling seat fixed on the bearing base plate, an iron cover feeding mechanism arranged on the right side of the iron cover tooling seat and used to transport the iron cover to the iron cover tooling seat, and a rear copper tube transferring mechanism used to transfer the copper tube on the assembly carrier to the upper side of the iron cover, an iron cover correction mechanism arranged on the front side of the iron cover tooling seat and used to fix the iron cover and control the axial rotation of the iron cover, an opening positioning mechanism arranged on the left side of the iron cover tooling seat and used to detect the position of the opening on the upper side wall of the iron cover, and a copper tube stamping mechanism arranged on the upper side of the iron cover tooling seat and used to insert the copper tube into the opening.

[0008] As a further solution, the welding ring feeding assembly includes a welding ring feeding mechanism and a welding ring feeding mechanism; The welding ring feeding mechanism comprises a welding ring conveying seat, a welding ring pushing rod and a welding ring pushing device. The welding ring conveying seat is provided with a welding ring conveying groove facing the assembly carrier and a welding ring inlet laterally connected to the welding ring conveying groove. The welding ring pushing rod is slidably connected in the welding ring conveying groove, and the rear end of the welding ring pushing rod is drivingly connected to the welding ring pushing device. The welding ring feeding mechanism comprises a welding ring vibration plate and a welding ring discharge channel connected to the welding ring vibration plate, and a discharge end of the welding ring discharge channel is connected to the welding ring inlet.

[0009] As a further solution, the copper tube feeding assembly includes a copper tube feeding mechanism, a copper tube rotating mechanism and a front copper tube transplanting mechanism; The copper tube feeding mechanism comprises a copper tube conveying seat, a copper tube pushing rod and a copper tube pushing device. The copper tube conveying seat is provided with a copper tube conveying groove which is open upwards. The upper side of the copper tube conveying seat is fixedly connected with a copper tube loading box. The drop opening at the bottom of the copper tube loading box is connected with the copper tube conveying groove. The copper tube pushing rod is slidably connected in the copper tube conveying groove, and the rear end of the welding ring pushing rod is drivingly connected with the copper tube pushing device. The copper tube rotating mechanism includes a rotating cylinder arranged between the copper tube conveying seat and the turntable, the output end of the rotating cylinder is fixedly connected to a copper tube sleeve, the copper tube sleeve is driven by the rotating cylinder to flip back and forth between a horizontal position and a vertical position, and the copper tube sleeve is coaxially arranged with the copper tube conveying groove when in the horizontal position.

[0010] As a further solution, the iron cover correction mechanism includes a rotating motor and a correction motion device that controls the rotating motor to move forward and backward relative to the iron cover workpiece seat. A chuck is fixedly connected to the output end of the rotating motor, and two or more iron cover claws that can move relative to each other are connected to the chuck. The iron cover claws perform outward supporting motion to clamp the iron cover.

[0011] As a further solution, the hole-opening positioning mechanism includes a needle base, a hole-opening positioning needle elastically connected to the needle base, and a needle base movement device for controlling the movement of the needle base. A position sensing element is provided on the needle base, and a triggering portion cooperating with the position sensing element is fixed on the hole-opening positioning needle. When the hole-opening positioning needle is inserted into the hole of the iron cap, the triggering portion activates the triggering signal of the position sensing element.

[0012] As a further solution, the copper tube stamping mechanism includes a stamping bracket. An installation platform is provided on the stamping bracket and is located above the iron cap tooling seat. A stamping cylinder is fixed on the installation platform. The piston shaft of the stamping cylinder extends downward toward the iron cap tooling seat and is fixedly connected to a stamping needle that moves up and down. A piston shaft sensor linked to the rear copper tube transplanting mechanism is provided at the middle position of the stamping cylinder, and the piston shaft sensor cooperates with the piston shaft of the stamping cylinder.

[0013] As a further solution, 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. 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, and a copper tube pressing head is provided on the piston shaft of the copper tube pressing cylinder. And a pressing inner conical surface is provided at the bottom of the copper tube pressing head.

[0014] As a further solution, the assembly carrier includes a carrier seat. A vertically sliding copper tube positioning needle is elastically connected inside the carrier seat. A copper tube limiting surface is provided in the middle of the copper tube positioning needle. A guiding through hole suitable for the copper tube to pass through is opened on the carrier seat corresponding to the needle tip of the copper tube positioning needle, and a circumferentially arranged welding ring bearing surface is opened on the hole wall of the guiding through hole.

[0015] The beneficial effects of the present invention are as follows: A fully automatic combination machine for connecting pipe fittings according to the present invention. This copper tube automatic assembly equipment can realize full automation of feeding, detection, position correction, combination, and discharging in the assembly process, without manual intervention throughout the process. It not only effectively reduces the labor cost and avoids problems such as fatigue and injury during manual operation, but also the entire assembly process is carried out continuously with a short interval time, and the production efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the fully automatic combination machine of the present invention from a top view angle.

[0017] Figure 2 It is a schematic structural diagram of the fully automatic combination machine of the present invention from a three-dimensional angle.

[0018] Figure 3 It is a schematic structural diagram of the welding ring feeding mechanism of the present invention.

[0019] Figure 4 This is a schematic structural diagram of the copper tube feeding mechanism of the present invention.

[0020] Figure 5 This is a schematic diagram of the positions of the copper tube before and after rotation of the present invention.

[0021] Figure 6 This is a schematic structural diagram of the iron cover correction mechanism of the present invention.

[0022] Figure 7 This is a schematic structural diagram of the hole opening positioning mechanism of the present invention.

[0023] Figure 8 This is a schematic diagram of the cooperation between the iron cover before correction and the hole opening positioning pin of the present invention.

[0024] Figure 9 This is a schematic diagram of the cooperation between the iron cover after correction and the hole opening positioning pin of the present invention.

[0025] Figure 10 This is a schematic structural diagram of the copper tube transplanting mechanism of the present invention.

[0026] Figure 11 This is a schematic diagram of the stamping structure of the copper tube stamping mechanism of the present invention.

[0027] Figure 12 This is a schematic structural diagram of the iron cover tooling seat of the present invention.

[0028] Figure 13 This is a schematic diagram before and after the stamping combination of the welding ring, copper tube and iron cover of the present invention.

[0029] Figure 14 This is a schematic structural diagram of the welding ring pressure feeding mechanism and the copper tube pressure feeding mechanism of the present invention.

[0030] Figure 15 This is a schematic sectional structural diagram of the assembly carrier of the present invention. Detailed implementation manners

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0032] As Figures 1 to 13As shown in the figure, a fully automatic combination machine for connecting pipe fittings includes a bearing bottom plate 1. A turntable 2 is rotatably connected to the bearing bottom plate 1. Multiple groups of assembly carriers 3 are evenly distributed around the rotation center of the turntable 2. Corresponding to some of the assembly carriers 3 on the bearing bottom plate 1, a welding ring feeding station, a copper pipe feeding station, and a combined stamping station are arranged circumferentially. A welding ring feeding assembly 12 for successively conveying welding rings onto the assembly carriers 3 is provided at the welding ring feeding station. A copper pipe feeding assembly 13 for transplanting copper pipes and vertically inserting the copper pipes onto the assembly carriers 3 is provided at the copper pipe feeding station. A combined assembly assembly 9 for conveying iron caps to the assembly position and inserting the copper pipes with welding rings sleeved thereon into the holes on the side walls of the iron caps is provided at the combined stamping station.

[0033] This copper pipe automatic assembly equipment can realize full automation of feeding, detection, position correction, combination, and discharging in the assembly process, without manual interference throughout the process. 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 continuously with a short interval time, and the production efficiency is high.

[0034] In addition, each station is arranged around the periphery of the turntable 2, which can effectively reduce the vertical and horizontal volume of the entire equipment, thereby reducing the space occupancy rate.

[0035] A welding ring correction station is also arranged between the welding ring feeding station and the copper pipe feeding station. A welding ring pressing mechanism 5 for adjusting the position of the welding ring on the assembly carrier 3 is provided at the welding ring correction station. The welding ring pressing mechanism 5 ensures that the solder can be placed in place on the assembly carrier 3. A pressing station is also arranged between the copper pipe feeding station and the combined stamping station. A copper pipe pressing mechanism 8 for pressing down the copper pipes on the assembly carrier and sleeving the welding rings outside the copper pipes is provided at the pressing station; when the copper pipe feeding assembly 13 places the copper pipes on the assembly carrier 3, the copper pipes may only hang above the welding rings or the welding rings are shallowly sleeved outside the copper pipes. After the copper pipes move downward relative to the welding rings through the pressing of the copper pipe pressing mechanism 8, the depth of the welding rings sleeved on the copper pipes can be increased.

[0036] The combined assembly assembly 9 includes an iron cap tooling seat 96 fixed on the bearing bottom plate 1, an iron cap feeding mechanism 91 arranged on the right side of the iron cap tooling seat 96 and used for conveying iron caps to the iron cap tooling seat, a rear copper pipe transplanting mechanism 92 for transplanting the copper pipes on the assembly carrier to the upper side of the iron caps, an iron cap correction mechanism 93 arranged on the front side of the iron cap tooling seat and provided for fixing the iron caps and controlling the axial rotation of the iron caps, an opening positioning mechanism 94 arranged on the left side of the iron cap tooling seat and provided for detecting the positions of the holes on the upper side walls of the iron caps, and a copper pipe stamping mechanism 95 arranged on the upper side of the iron cap tooling seat and used for inserting the copper pipes into the holes. By combining the various mechanisms of the assembly 9, the copper tube with the welding ring can be inserted into the iron cover, so as to realize full-automatic processing and improve efficiency.

[0037] 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 pushing rod 42 and a welding ring pushing device. The welding ring conveying seat 41 is provided with a welding ring conveying groove 411 facing the assembly carrier and a welding ring inlet 412 laterally connected to the welding ring conveying groove 411. The welding ring pushing rod 42 is slidably connected in the welding ring conveying groove 411, and the rear end of the welding ring pushing rod 42 is drivingly connected to the welding ring pushing device. 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 pushing rod 42 matches the welding ring conveying groove 411, and a semicircular recess 421 is provided at the front end of the welding ring conveying groove 411. The semicircular recess 421 plays a positioning role when pushing the welding ring, thereby avoiding collision or friction between the welding ring and the left and right groove walls of the welding ring conveying groove 411.

[0038] The welding ring pushing device includes a welding ring loading base 43, to which is connected a third transverse guide rail 44, a welding ring loading slider 45, and a welding ring loading cylinder 46 that drives the welding ring loading slider 45 to slide along the third transverse guide rail 44, and the rear end of the welding ring pushing rod 42 is fixedly connected to the welding ring loading slider 45.

[0039] The welding ring feeding mechanism 10 includes a welding ring vibration disk 1001 and a welding ring discharge channel 1002 connected to the welding ring vibration disk 1001. The discharge end of the welding ring discharge channel 1002 is connected to the welding ring inlet 412. When vibrating, the welding rings on the welding ring vibration disk 1001 are arranged along the welding ring discharge channel 1002 and the welding ring inlet 412 and slide into the welding ring conveying groove 411, and trigger the in-place sensor on the opposite side of the welding ring inlet 412.

[0040] The copper tube feeding assembly 13 includes a copper tube feeding mechanism 6, a copper tube rotating mechanism 7 and a front copper tube transplanting mechanism 11; The copper tube feeding mechanism 6 includes a copper tube conveying seat 61, a copper tube pushing rod 62 and a copper tube pushing device. The copper tube conveying seat 61 is provided with a copper tube conveying groove 611 which is open upwards. The upper side of the copper tube conveying seat 61 is fixedly connected with a copper tube loading box 63. The drop opening at the bottom of the copper tube loading box 63 is connected with the copper tube conveying groove 611. The copper tube pushing rod 62 is slidably connected in the copper tube conveying groove 611, and the rear end of the welding ring pushing rod 42 is drivingly connected with the copper tube pushing device. The copper tube pushing device includes a copper tube feeding base 64, to which is connected a fourth transverse guide rail 65, a copper tube feeding slider 66, and a copper tube feeding cylinder 67 that drives the copper tube feeding slider 66 to slide along the fourth transverse guide rail 65. The rear end of the copper tube pushing rod 62 is fixedly connected to the copper tube feeding slider 66.

[0041] The copper tube loading box 63 is also provided with a material shaking assembly (not marked in the drawings), which prevents the copper tubes from being blocked at the drop opening at the bottom.

[0042] The copper tube rotating mechanism 7 includes a rotating cylinder 71 arranged between the copper tube conveying seat 61 and the turntable, and the output end of the rotating cylinder 71 is fixedly connected to a copper tube sleeve 72, and the copper tube sleeve 72 is driven by the rotating cylinder 71 to flip back and forth between the horizontal position and the vertical position, and the copper tube sleeve 72 is coaxially arranged with the copper tube conveying groove 611 when in the horizontal position; in this embodiment, the copper tube sleeve 72 is driven by the rotating cylinder 71 to realize a 90° rotation, realizes the conversion between the horizontal position and the vertical position, and flips the copper tube fed horizontally to a vertical state, which is convenient for the front copper tube transplanting mechanism 11 to clamp and transplant.

[0043] The iron cover correction mechanism 93 includes a rotating motor 931 and a correction movement device for controlling the rotating motor 931 to move forward and backward relative to the iron cover fixture seat 96. A chuck 932 is fixedly connected to the output end of the rotating motor 931, and two or more iron cover claws 933 that can move relative to each other are connected to the chuck 932. The iron cover claws 933 perform outward supporting movement to clamp the iron cover.

[0044] Among them, the correction motion device includes a correction base plate 934 fixed on the supporting base plate 1, and the correction base plate 934 is connected to 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. The rotating motor 931 is fixed on the correction slider 936, and the piston shaft of the transverse correction cylinder 937 is transmission-connected to the rotating motor 931.

[0045] In this embodiment, the chuck 932 is connected with two iron cover claws 933 that move in opposite directions. The iron cover claws 933 are semicircular in shape. When the iron cover claws 933 are supported outward to clamp the iron cover, they can better fit the inner wall of the iron cover to prevent the iron cover claws 933 from scratching the iron cover.

[0046] 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 movement device for controlling the movement 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.

[0047] Among them, the needle base movement 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.

[0048] And in this embodiment, the needle base 941 has a "C" - shaped structure. Through - holes for the up - and - down sliding of the opening positioning needle 942 are provided on 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 can achieve elastic sliding.

[0049] The front copper tube transplanting mechanism 11 and the rear copper tube transplanting mechanism 92 have basically the same structure, and both include a transplanting bracket 921 fixed on the bearing bottom plate 1. The transplanting bracket 921 is connected with a first transverse guide rail 922, a transplanting slider 923, and a transverse transplanting cylinder 924 for driving the transplanting slider 923 to slide along the first transverse guide rail 922. A lifting transplanting cylinder 925 is fixed on the transplanting slider 923, and a copper tube clamp 926 is drivingly connected to the piston shaft of the lifting transplanting cylinder 925.

[0050] The copper tube stamping mechanism 95 includes a stamping bracket 951. An installation platform 952 is provided on the stamping bracket 951 above 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.

[0051] A piston shaft inductor 955 linked with the copper tube transplanting mechanism 92 is provided at the middle position of the stamping cylinder 953, and 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.

[0052] The top surface of the iron cover fixture seat 96 is provided with an arc groove X for positioning the iron cover, one side of the arc groove X is high and the other side is low, wherein the high side X1 is provided with an iron cover in-position sensor 961; the iron cover feeding mechanism 91 includes an iron cover vibrating plate 911, and the iron cover discharge channel 912 of the iron cover vibrating plate 911 is connected to the low side X2 of the arc groove X; When the iron cover on the iron cover vibration plate 911 rolls into the arc groove X from the low side X2, the high side X1 can also limit the iron cover to prevent the iron cover from rolling out of the iron cover fixture seat 96 due to inertia.

[0053] An iron cover limiting plate 97 is fixedly provided on the rear side of the iron cover tooling seat 96, and an air nozzle 971 is provided on the iron cover limiting plate 97 for blowing toward the iron cover tooling seat 96, and a discharging chute 98 extending outwardly and obliquely is fixedly provided on the front side of the iron cover tooling seat 96; when the iron cover and the copper tube are assembled, the air nozzle 971 blows high-pressure gas toward the iron cover, blows the iron cover and the copper tube out of the iron cover tooling seat 96, and makes them fall into the discharging chute 98, thereby completing the unloading of the workpiece.

[0054] like Figure 14 As shown, the welding ring pressing mechanism 5 includes a welding ring pressing bracket 51, to which a welding ring pressing cylinder 52 is fixedly connected, 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 axially opened in the welding ring pressing needle 53 to avoid the needle head 322 of the copper tube positioning needle 32.

[0055] The copper tube pressing mechanism 8 includes a copper tube pressing support 81, to which a copper tube pressing cylinder 82 is fixedly connected, a copper tube pressing head 83 is provided on the piston shaft of the copper tube pressing cylinder 82, and an inner pressing conical surface 831 is provided 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 inner pressing 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 downward concentrically.

[0056] 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 penetrating the axial inner cavity 301 is vertically slidably connected to the carrier seat 3; The copper tube positioning needle 32 is provided with a supporting ring 33 at a height corresponding to the axial inner cavity 301, the supporting ring 33 and the axial inner cavity 301 form a linear sliding fit, and the top surface of the supporting ring 33 forms a copper tube limiting surface 321, and a return spring 34 is sleeved at the lower part of the copper tube positioning needle 32, and the two ends of the return spring 34 are against the bottom surface of the axial inner cavity 301 and the supporting ring 33, so as to achieve elastic sliding; A guiding through-hole 311 adapted for the copper tube to pass through is formed on the vehicle seat 31 corresponding to the needle tip 322 of the copper tube positioning pin 32, and a circumferentially arranged welding ring bearing surface 312 is formed on the inner wall of the guiding through-hole 311.

[0057] Combined with the above structure, the working principle of the fully automatic combination machine is as follows: Refer to 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 works to drive the welding ring pushing rod 42 to slide forward, and push the welding ring C out of the front port of the welding ring conveying groove 411. Then, the welding ring C naturally falls and drops into the guiding through-hole 311 of the assembly carrier 3.

[0058] The assembly carrier 3 with the welding ring C placed thereon rotates to the welding ring calibration station. The welding ring pressing cylinder 52 works to drive the welding ring pressing pin 53 to press into the guiding through-hole 311, and push the welding ring C to be flatly positioned on the welding ring bearing surface 312 (during the natural falling process of the welding ring C, the welding ring C may hang on the needle tip 322).

[0059] The assembly carrier 3 continues to rotate to the copper tube loading station. The copper tube B in the copper tube loading box 63 enters the copper tube conveying groove 611 through the blanking port. The copper tube pushing device works to drive the copper tube pushing rod 62 to slide forward, and push the copper tube B in the copper tube conveying groove 611 into the copper tube sleeve 72 (the copper tube sleeve is in the horizontal position, refer to the left figure shown in Figure 5 ). The rotating cylinder 71 works to drive the copper tube sleeve 72 to rotate to the vertical position, refer to the right figure shown in Figure 5 .

[0060] Then, the copper tube clamp 926 of the front copper tube transplanting mechanism 11 clamps the copper tube B and transplants it to the upper side of the assembly carrier 3, and vertically inserts the copper tube B on the needle tip 322 of the copper tube positioning pin 32.

[0061] The assembly carrier 3 with the copper tube B inserted thereon rotates to the pressing station. The copper tube pressing mechanism 8 works to drive the copper tube pressing head 83 to press down the top end of the copper tube B, so that the copper tube positioning pin 32 compresses the return spring 34 and sinks together with the copper tube B, so that the welding ring C is transferred to a deeper position of 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, the copper tube B is jacked up again, and at the same time, the copper tube B drives the welding ring C away from the welding ring bearing surface 312.

[0062] The assembly carrier 3 continues to rotate to the combined stamping station. At the same time, the iron cover A rolls into the iron cover tooling seat 96 one by one from the iron cover vibrating disk 911 along the iron cover discharge channel 912. At this time, the iron cover A is placed laterally, and its opening faces the iron cover calibration mechanism 93.

[0063] The rotating motor 931 is driven by the correction motion device to move forward to the position of the iron cover fixture seat 96, and then the chuck 932 controls the iron cover claw 933 to clamp the iron cover A.

[0064] The needle seat 941 is driven by the needle seat movement device to move to the upper side of the iron cover A. Initially, the hole positioning needle 942 is elastically pressed against the side wall of the iron cover A. 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 specified position).

[0065] Then the rotating motor 931 works and drives the iron cover A to rotate axially for correction. When the opening A1 of the iron cover A rotates to face upward, the opening positioning pin 942 is inserted into the opening A1 under the potential energy of the reset spring 948. Figure 9 As shown, the trigger part 9411 moves downward and staggers with the position sensing element 943. At this time, the position sensing element 943 sends a signal to control the rotating motor 931 to stop working, and then the hole positioning needle 942 leaves the iron cover A and moves out of the iron cover fixture seat 96.

[0066] Reference Figure 11 and Figure 13 As shown in the left figure, the copper tube clamp 926 of the rear copper tube transplanting mechanism 92 clamps the copper tube B with the welding ring C and moves it, and puts it on the upper side of the opening A1, and then the punching cylinder 953 works to drive the punching needle 954 to move downward. When the punching needle 954 presses against the top surface of the copper tube B, the triggering piston shaft of the punching cylinder 953 triggers the piston shaft sensor 955, thereby controlling the copper tube clamp 926 to release, and then the punching 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.

[0067] Finally, the air nozzle 971 works to blow high-pressure gas toward the position of the iron cover B, blows the combined structure of the iron cover A and the copper tube B out of the iron cover fixture seat 96, and makes it fall into the discharge chute 98, completing the unloading of the workpiece.

[0068] The above is a preferred embodiment of the present invention, which shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. The present invention may have various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention to be protected, and the scope of the present invention to be protected is defined by the attached claims and their equivalents.

Claims

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

2. The fully automatic assembly machine for connecting pipe fittings according to claim 1, characterized in that: A welding ring correction station is also arranged between the welding ring loading station and the copper tube loading station, and the welding ring correction station is provided with a welding ring pressing mechanism (5) for adjusting the position of the welding ring on the assembly carrier (3); A material pressing station is also arranged between the copper tube loading station and the combined stamping station, and the material pressing station is provided with a copper tube pressing mechanism (8) for pressing down the copper tube on the assembly carrier and allowing the welding ring to be sleeved outside the copper tube.

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

4. The fully automatic assembly machine for connecting pipe fittings according to claim 1, characterized in that: The welding ring loading assembly (12) comprises a welding ring loading mechanism (4) and a welding ring feeding mechanism (10); The welding ring feeding mechanism (4) comprises a welding ring conveying seat (41), a welding ring pushing rod (42) and a welding ring pushing device, wherein the welding ring conveying seat (41) is provided with a welding ring conveying groove (411) facing the assembly carrier and a welding ring inlet (412) laterally connected to the welding ring conveying groove (411), the welding ring pushing rod (42) is slidably connected in the welding ring conveying groove (411), and the rear end of the welding ring pushing rod (42) is drivingly connected to the welding ring pushing device; The welding ring feeding mechanism (10) comprises a welding ring vibration disk (1001) and a welding ring discharge channel (1002) connected to the welding ring vibration disk (1001), and the discharge end of the welding ring discharge channel (1002) is connected to the welding ring inlet (412).

5. The fully automatic assembly machine for connecting pipe fittings according to claim 1, characterized in that: The copper tube feeding assembly (13) comprises a copper tube feeding mechanism (6), a copper tube rotating mechanism (7) and a front copper tube transplanting mechanism (11); The copper tube feeding mechanism (6) comprises a copper tube conveying seat (61), a copper tube pushing rod (62) and a copper tube pushing device. The copper tube conveying seat (61) is provided with a copper tube conveying groove (611) which is open upwards. The upper side of the copper tube conveying seat (61) is fixedly connected to a copper tube loading box (63). The drop opening at the bottom of the copper tube loading box (63) is connected to the copper tube conveying groove (611). The copper tube pushing rod (62) is slidably connected to the copper tube conveying groove (611), and the rear end of the welding ring pushing rod (42) is drivingly connected to the copper tube pushing device. The copper tube rotating mechanism (7) comprises a rotating cylinder (71) disposed between the copper tube conveying seat (61) and the rotating disk, the output end of the rotating cylinder (71) being fixedly connected to a copper tube sleeve (72), the copper tube sleeve (72) being driven by the rotating cylinder (71) to flip back and forth between a horizontal position and a vertical position, and the copper tube sleeve (72) being coaxially arranged with the copper tube conveying groove (611) when in the horizontal position.

6. The fully automatic assembly machine for connecting pipe fittings according to claim 1, characterized in that: The iron cover correction mechanism (93) comprises a rotating motor (931) and a correction movement device for controlling the rotating motor (931) to move forward and backward relative to the iron cover fixture seat (96); a chuck (932) is fixedly connected to the output end of the rotating motor (931); two or more iron cover clamping claws (933) that move relative to each other are connected to the chuck (932); the iron cover clamping claws (933) perform an outward supporting movement to clamp the iron cover.

7. The fully automatic assembly machine for connecting pipe fittings according to claim 1, characterized in that: The opening positioning mechanism (94) comprises 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); a position sensing element (943) is provided on the needle seat (941); a triggering part (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 triggering part (9411) activates a trigger signal of the position sensing element (943).

8. The fully automatic assembly machine for connecting pipe fittings according to claim 1, characterized in that: The copper tube stamping mechanism (95) comprises a stamping bracket (951), the stamping bracket (951) is provided with a mounting platform (952) placed on the upper side of the iron cover fixture seat (96), a stamping cylinder (953) is fixed on the mounting platform (952), the piston shaft of the stamping cylinder (953) extends downward toward the iron cover fixture seat (96), and is fixedly connected to a stamping needle (954) that moves up and down; A piston shaft sensor (955) linked to the rear copper tube transplanting mechanism (92) is provided at the middle position of the stamping cylinder (953), and 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 1, characterized in that: The welding ring pressing mechanism (5) comprises a welding ring pressing support (51), a welding ring pressing cylinder (52) is fixedly connected to the welding ring pressing support (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) comprises a copper tube pressing support (81), a copper tube pressing cylinder (82) is fixedly connected to the copper tube pressing support (81), a copper tube pressing head (83) is provided on the piston shaft of the copper tube pressing cylinder (82), and a pressing inner conical surface (831) is provided at the bottom of the copper tube pressing head (83).

10. The fully automatic assembly machine for connecting pipes according to claim 1, characterized in that: The assembly carrier (3) comprises a carrier seat (31), a vertically sliding copper tube positioning needle (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 needle (32), a guide through hole (311) suitable for the copper tube to pass through is provided on the needle head (322) corresponding to the copper tube positioning needle (32) on the carrier seat (31), and a circumferentially arranged welding ring bearing surface (312) is provided on the hole wall of the guide through hole (311).

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