Pipe plastic part assembling production line

Abstract

A feeding seat, four clamping seats and a discharging seat are arranged on a machine frame, a transferring frame and a transferring driving mechanism are arranged on the machine frame, a lifting frame and a lifting driving mechanism are arranged on the transferring frame, five transferring seats are arranged on the lifting frame, and the lifting driving mechanism is arranged on the lifting frame. A first abutting plate and a first abutting driving mechanism are arranged on one side of the first clamping seat, a lock head assembling mechanism and a lock head supplying mechanism are arranged on the other side of the first clamping seat, a second abutting plate and a second abutting driving mechanism are arranged on one side of the second clamping seat, and a middle section assembling mechanism and a middle section supplying mechanism are arranged on the other side of the second clamping seat. A third abutting plate and a third abutting driving mechanism are arranged on one side of the third clamping seat, a riveting point device and a riveting point driving mechanism are arranged on the other side of the third clamping seat, a fourth abutting plate and a fourth abutting driving mechanism are arranged on one side of the fourth clamping seat, and an end cover assembling mechanism and an end cover supplying mechanism are arranged on the other side of the fourth clamping seat. The pipe plastic part assembling production line can efficiently, reliably and accurately assemble a lock head, an end cover and a middle joint on a straight pipe.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of functional pipe automatic intelligent production equipment, in particular to a pipe plastic part assembly production line. BACKGROUND

[0002] Now there is a need for a functional pipe, which includes a straight pipe, a lock head needs to be inserted on one end of the straight pipe, and the straight pipe end with the lock head needs to be riveted, so that the lock head can be fixed with the straight pipe, a end cover needs to be covered on the other end of the straight pipe, and a circle of glue needs to be applied on the side wall of the inner cavity of the end cover before assembly, after assembly, the glue can fix the end cover and the straight pipe end, and a middle section needs to be pre-fitted on the straight pipe, the lock head, the end cover and the middle section are all plastic parts. The installation of the three plastic parts on the functional pipe is completed by manual work. Manual installation of plastic parts has the disadvantages of low processing efficiency, high labor cost and unstable assembly quality. SUMMARY

[0003] The technical problem to be solved by the present application is to provide a pipe plastic part assembly production line which can efficiently, reliably and accurately assemble the lock head, the end cover and the middle section on the straight pipe.

[0004] To solve the above problems, the technical solution adopted by the present invention is as follows: a pipe plastic parts assembly production line, comprising: a frame, characterized in that: a feeding seat, a first clamping seat, a second clamping seat, a third clamping seat, a fourth clamping seat, and a discharging seat are arranged sequentially from back to front on the frame; a straight pipe supply device is provided on the frame to place straight pipes one by one in a left-right orientation on the feeding seat; each clamping seat can clamp and position the straight pipes placed in a left-right orientation; a transfer frame that can slide horizontally back and forth and a transfer drive mechanism that can drive the transfer frame to slide back and forth are also provided on the frame; a lifting frame and a lifting drive mechanism that can drive the lifting frame to lift up and down are provided on the transfer frame; five transfer seats are arranged at intervals along the front-back direction on the lifting frame. Each transfer seat corresponds one-to-one with the loading seat and each clamping seat. After the lifting frame moves upward under the drive of the lifting drive mechanism, the five transfer seats can respectively lift a straight tube placed on the loading seat and each clamping seat. Then, the transfer frame moves forward under the drive of the transfer drive mechanism. Next, after the lifting frame moves downward under the drive of the lifting drive mechanism, the five straight tubes can be transferred to each clamping seat and the discharge seat respectively. On one side of the frame on both sides of the first clamping seat, there is a first abutment plate and a first abutment drive mechanism that can drive the first abutment plate to move left and right. On the other side of the frame, there is a lock head assembly mechanism and a lock head supply mechanism. The lock head assembly mechanism can insert the lock head provided by the lock head supply mechanism into one end of the straight tube. The first abutment plate inserts the lock head into one end of the straight tube. The other end of the straight pipe abuts against the second clamping seat. On one side of the frame on both sides of the second clamping seat, a second abutting plate and a second abutting drive mechanism capable of driving the second abutting plate to move left and right are provided. On the other side of the frame, an intermediate section assembly mechanism and an intermediate section supply mechanism are provided. The intermediate section assembly mechanism is located on the same side as the first abutting plate. The intermediate section assembly mechanism can fit the intermediate section provided by the intermediate section supply mechanism onto the straight pipe. When the intermediate section is fitted onto one end of the straight pipe, the other end of the straight pipe abuts against the second abutting plate. On one side of the frame on both sides of the third clamping seat, a third abutting plate and a third abutting drive mechanism capable of driving the third abutting plate to move left and right are provided. On the other side of the frame, a rivet point device that can slide left and right and a rivet point drive mechanism capable of driving the rivet point device to move left and right are provided. The abutment plate and the intermediate section assembly mechanism are located on the same side. Driven by the riveting drive mechanism, the riveting device moves towards the straight pipe positioned on the third clamping seat. The end of the straight pipe with the locking head inserted can be inserted into the riveting device for riveting, allowing the locking head to be fixed to the end of the straight pipe. The third abutment plate provides support for the other end of the straight pipe during riveting at one end. On one side of the frame on both sides of the fourth clamping seat, a fourth abutment plate and a fourth abutment drive mechanism that can drive the fourth abutment plate to move left and right are provided. On the other side of the frame, an end cap assembly mechanism and an end cap supply mechanism are provided. The end cap assembly mechanism is located on the same side as the third abutment plate. The end cap assembly mechanism can first apply glue to the inner cavity of the end cap provided by the end cap supply mechanism, and then install the end cap onto one end of the straight pipe.The fourth abutting plate is used for abutting the other end of the straight pipe when the end cap is capped.

[0005] Further, the pipe plastic part assembling production line, wherein: the structure of the lock head assembling mechanism is that a lock head mounting seat capable of sliding left and right is arranged on the rack, and a lock head pushing mechanism capable of driving the lock head mounting seat to move left and right is arranged, a push column extending left and right is arranged on the lock head mounting seat, and a push driving mechanism capable of driving the push column to move left and right is arranged, a lock head feeding finger horizontally arranged in front and back directions is arranged, and a lock head rotating cylinder capable of driving the lock head feeding finger to swing back and forth in front and back directions by 180 degrees is arranged, the lock head feeding finger can grab the lock head vertically along the axial direction of the lock head, and then the lock head can be moved to the opposite side of the push column after the lock head feeding finger swings by 180 degrees, at this time, the lock head mounting seat moves towards the straight pipe positioned on the first clamping seat under the driving of the lock head pushing mechanism, and the lock head grabbed by the lock head feeding finger can be shallowly inserted into the port of the straight pipe under the driving of the lock head mounting seat, and the push column can push the lock head under the driving of the push driving mechanism, so that the lock head can be inserted and assembled into place in the port of the straight pipe.

[0006] Further, the pipe plastic part assembling production line, wherein: a rectification clamping finger is arranged on the rack inside the push column, two finger blocks are respectively fixed on the two clamping fingers of the rectification clamping finger, the two finger blocks are arranged in front and back alignment, an opposite clamping groove is respectively arranged on the opposite inner side walls of the two finger blocks, an arc-shaped protrusion is respectively arranged in the outer port of the two opposite clamping grooves, a guide slope is arranged on the outer end face of the arc-shaped protrusion, and under the driving of the rectification clamping finger, the two finger blocks can be clamped in front and back directions, at this time, the two opposite clamping grooves can clamp the end portion of the straight pipe on the first clamping seat to position the straight pipe, and the two arc-shaped protrusions can form a rectification channel coaxial with the straight pipe and located outside the port of the straight pipe, during insertion, the lock head enters the rectification channel under the guidance of the guide slope, and then the lock head can be smoothly inserted into the port of the straight pipe under the guidance of the rectification channel.

[0007] Further, the pipe plastic part assembling production line, wherein: the structure of the intermediate section assembling mechanism is that: a left and right sliding intermediate section mounting seat is arranged on the frame, and an intermediate section pushing mechanism is arranged to drive the intermediate section mounting seat to move left and right, an intermediate section feeding finger horizontally arranged in front and back direction is arranged on the intermediate section mounting seat, an intermediate section rotating cylinder is arranged to drive the intermediate section feeding finger to swing 180 degrees up and down, a core rod horizontally arranged in left and right direction is arranged, and a core rod driving mechanism is arranged to drive the core rod to move left and right, a push piece is arranged, and a push piece driving mechanism is arranged to drive the push piece to move left and right, the intermediate section feeding finger can vertically center the intermediate section, then after swinging 180 degrees up, the intermediate section can be moved to the opposite side of the core rod, at this time, the core rod can pass through the intermediate section after the core rod is driven by the core rod driving mechanism to stretch out towards the intermediate section, so that the intermediate section can be sleeved on the core rod, so that the intermediate section can be left on the core rod after the intermediate section feeding finger releases the intermediate section, then the core rod head can be inserted into the port of the straight pipe after the intermediate section mounting seat is driven by the intermediate section pushing mechanism to move towards the straight pipe positioned on the second clamping seat, then the push piece can push the intermediate section after the push piece is driven by the push piece driving mechanism to move towards the straight pipe, so that the intermediate section can be sleeved on the straight pipe along the core rod.

[0008] Further, the pipe plastic part assembling production line, wherein: the structure of the intermediate section assembling mechanism is that: a left and right sliding intermediate section mounting seat is arranged on the frame, and an intermediate section pushing mechanism is arranged to drive the intermediate section mounting seat to move left and right, an intermediate section feeding finger horizontally arranged in front and back direction is arranged on the intermediate section mounting seat, an intermediate section rotating cylinder is arranged to drive the intermediate section feeding finger to swing 180 degrees up and down, a core rod horizontally arranged in left and right direction is arranged, and a core rod driving mechanism is arranged to drive the core rod to move left and right, a push piece is arranged, and a push piece driving mechanism is arranged to drive the push piece to move left and right, the intermediate section feeding finger can vertically center the intermediate section, then after swinging 180 degrees up, the intermediate section can be moved to the opposite side of the core rod, at this time, the core rod can pass through the intermediate section after the core rod is driven by the core rod driving mechanism to stretch out towards the intermediate section, so that the intermediate section can be sleeved on the core rod, so that the intermediate section can be left on the core rod after the intermediate section feeding finger releases the intermediate section, then the core rod head can be inserted into the port of the straight pipe after the intermediate section mounting seat is driven by the intermediate section pushing mechanism to move towards the straight pipe positioned on the second clamping seat, then the push piece can push the intermediate section after the push piece is driven by the push piece driving mechanism to move towards the straight pipe, so that the intermediate section can be sleeved on the straight pipe along the core rod.

[0009] Further, the aforementioned pipe plastic part assembly production line, wherein: the structure of the end cap assembly mechanism is that: an end cap mounting seat capable of sliding left and right is arranged on the rack, an end cap pushing assembly mechanism capable of driving the end cap mounting seat to move left and right, an end cap feeding finger arranged horizontally in front and back direction, a first end cap rotating cylinder capable of driving the end cap feeding finger to swing 180 degrees up and down and back and forth, a glue machine capable of sliding left and right, a glue machine driving mechanism capable of driving the glue machine to move left and right, a rotating seat, and a second end cap rotating cylinder capable of driving the rotating seat to rotate 180 degrees back and forth horizontally are arranged, a pushing column capable of driving the pushing column to move left and right is arranged on the end cap mounting seat, a third end cap rotating cylinder capable of driving the end cap grabbing finger to swing 180 degrees up and down and back and forth is arranged horizontally in front and back direction, an end cap glue applying finger is mounted on the rotating seat, a glue self-rotating mechanism for driving the end cap glue applying finger to rotate is arranged, the end cap glue applying finger is located on the inner side of the glue machine, the end cap grabbing finger is located between the end cap glue applying finger and the pushing column, the pushing column is located in front of the end cap grabbing finger, the end cap feeding finger can grab the end cap vertically along the end cap axis, then after swinging 180 degrees, the end cap grabbed can be transferred to the position between the glue machine and the end cap glue applying finger, then the end cap glue applying finger on the outer side can coaxially grab the tail end of the end cap, so that the end cap can be transferred to the end cap glue applying finger, after the glue machine translates to the inner side under the driving of the glue machine driving mechanism, the glue pipe of the glue machine can be inserted into the end cap, after the end cap glue applying finger rotates 360 degrees with the end cap under the driving of the glue self-rotating mechanism, the glue machine can apply a ring of glue on the inner cavity side wall of the end cap, then after the glue pipe leaves the end cap, the end cap glue applying finger can be turned to the inner side after horizontally swinging 180 degrees back with the end cap under the driving of the second end cap rotating cylinder, at this time, the end cap with glue applied can be transferred to the position between the two fingers of the end cap grabbing finger, then the end cap grabbing finger can grab the end cap with glue applied vertically along the end cap axis, so that the end cap can be transferred to the end cap grabbing finger, then the end cap grabbing finger can swing 180 degrees up under the driving of the third end cap rotating cylinder, the end cap with glue applied can be transferred to the opposite side of the pushing column, then the end cap mounting seat can move to the straight pipe positioned on the fourth clamping seat under the driving of the end cap pushing assembly mechanism, the end cap grabbed by the end cap grabbing finger can be capped on the end of the straight pipe under the driving of the end cap mounting seat, after the end cap grabbing finger releases the end cap, the pushing column can push the end cap under the driving of the pushing driving mechanism, so that the end cap can be capped in place on the end of the straight pipe.

[0010] Further, the aforementioned pipe plastic part assembly production line, wherein: the structure of the end cap assembly mechanism is that: an end cap mounting seat capable of sliding left and right is arranged on the rack, an end cap pushing assembly mechanism capable of driving the end cap mounting seat to move left and right, an end cap feeding finger arranged horizontally in front and back direction, a first end cap rotating cylinder capable of driving the end cap feeding finger to swing 180 degrees up and down and back and forth, a glue machine capable of sliding left and right, a glue machine driving mechanism capable of driving the glue machine to move left and right, a rotating seat, and a second end cap rotating cylinder capable of driving the rotating seat to rotate 180 degrees back and forth horizontally are arranged, a pushing column capable of driving the pushing column to move left and right is arranged on the end cap mounting seat, a third end cap rotating cylinder capable of driving the end cap grabbing finger to swing 180 degrees up and down and back and forth is arranged horizontally in front and back direction, an end cap glue applying finger is mounted on the rotating seat, a glue self-rotating mechanism for driving the end cap glue applying finger to rotate is arranged, the end cap glue applying finger is located on the inner side of the glue machine, the end cap grabbing finger is located between the end cap glue applying finger and the pushing column, the pushing column is located in front of the end cap grabbing finger, the end cap feeding finger can grab the end cap vertically along the end cap axis, then after swinging 180 degrees, the end cap grabbed can be transferred to the position between the glue machine and the end cap glue applying finger, then the end cap glue applying finger on the outer side can coaxially grab the tail end of the end cap, so that the end cap can be transferred to the end cap glue applying finger, after the glue machine translates to the inner side under the driving of the glue machine driving mechanism, the glue pipe of the glue machine can be inserted into the end cap, after the end cap glue applying finger rotates 360 degrees with the end cap under the driving of the glue self-rotating mechanism, the glue machine can apply a ring of glue on the inner cavity side wall of the end cap, then after the glue pipe leaves the end cap, the end cap glue applying finger can be turned to the inner side after horizontally swinging 180 degrees back with the end cap under the driving of the second end cap rotating cylinder, at this time, the end cap with glue applied can be transferred to the position between the two fingers of the end cap grabbing finger, then the end cap grabbing finger can grab the end cap with glue applied vertically along the end cap axis, so that the end cap can be transferred to the end cap grabbing finger, then the end cap grabbing finger can swing 180 degrees up under the driving of the third end cap rotating cylinder, the end cap with glue applied can be transferred to the opposite side of the pushing column, then the end cap mounting seat can move to the straight pipe positioned on the fourth clamping seat under the driving of the end cap pushing assembly mechanism, the end cap grabbed by the end cap grabbing finger can be capped on the end of the straight pipe under the driving of the end cap mounting seat, after the end cap grabbing finger releases the end cap, the pushing column can push the end cap under the driving of the pushing driving mechanism, so that the end cap can be capped in place on the end of the straight pipe.

[0011] Further, the pipe plastic part assembly production line, wherein: two air path channels are arranged in the transmission shaft, the outer ports of the two air path channels are arranged on the end face of the transmission shaft fixed with the end cap glue finger, and the two outer ports are respectively connected and communicated with the two air ports on the tail end of the end cap glue finger, the inner ports of the two air path channels are staggered and arranged on the side wall of the transmission shaft, two annular air grooves are arranged on the side wall of the through hole of the rotating seat for inserting the transmission shaft, the two annular air grooves are respectively connected and communicated with the inner ports of the two air path channels one by one, and two air connection ports corresponding to the two annular air grooves are arranged on the side wall of the rotating seat, and the air pipes for controlling the action of the end cap glue finger are respectively connected to the two air connection ports.

[0012] Further, the pipe plastic part assembly production line, wherein: each clamping seat is composed of two broad type air cylinder fingers arranged left and right in alignment, and the straight pipe is supported and positioned on the rack by being clamped by the two broad type air cylinder fingers at its two ends and moving left and right.

[0013] Further, the pipe plastic part assembly production line, wherein: the lock head, the middle section and the end cap are all plastic parts, the structures of the three feeding mechanisms all include: a vibrating disc for providing plastic parts, the vibrating disc is provided with a conveying channel, the plastic parts conveyed outward from the vibrating disc slide downward and are arranged in the conveying channel, the lower end of the conveying channel is provided with an avoiding notch, each feeding finger can pass through the avoiding notch to clamp and grab the first arranged plastic part in the conveying channel, and since the upper surface at the lower end of the conveying channel is open and the baffle at the lower end of the conveying channel is arranged as an arc-shaped plate capable of avoiding the plastic parts, each feeding finger can take the grabbed plastic part away from the conveying channel after being swung upward under the drive of the corresponding rotary air cylinder.

[0014] Further, the pipe plastic part assembly production line, wherein: a stop block and a stop block driving mechanism capable of driving the stop block to move up and down are arranged above the lower end of the conveying channel, the stop block can press the second arranged plastic part in the conveying channel after being driven by the stop block driving mechanism to move downward, so that the plastic part does not hinder the first arranged plastic part from leaving the lock head conveying channel.

[0015] Further, the pipe plastic part assembly production line, wherein: the conveying channel is fixed on the linear vibrator.

[0016] Further, the pipe plastic part assembly production line, wherein: the push piece is annular, and the push piece is sleeved on the core rod.

[0017] Further, the aforementioned pipe plastic part assembly production line, wherein: the structure of the straight pipe supply device comprises: a storage rack for placing straight pipes, a fixed step plate and a liftable step plate are respectively arranged on the left and right sides of the front part of the storage rack, a step lifting device capable of driving the lifting of the step plate is arranged, three steps are arranged on the rear part of the fixed step plate and the lifting step plate, the three steps on the fixed step plate are respectively a first fixed step, a second fixed step and a third fixed step from bottom to top, the three steps on the lifting step plate are respectively a first movable step, a second movable step and a third movable step from bottom to top, the upper surfaces of the steps are arranged downwardly from back to front, the two fixed step plates are arranged in left-right alignment, the two lifting step plates are arranged in left-right alignment, and the bottom of the storage rack is arranged downwardly from back to front, so that the straight pipes placed on the storage rack can be inclined forward on the sides of the two first fixed steps, the two first movable steps are lower than the bottom of the storage rack, after the lifting of the two lifting step plates is driven by the respective step lifting devices, the first movable step can be moved to a position flush with the first fixed step, at the same time, the second movable step can be moved to a position flush with the second fixed step, and the third movable step can be moved to a position flush with the third fixed step, in addition, during the lifting of the two lifting step plates, the two first movable steps can lift a straight pipe inclined on the side of the first fixed step, the two second movable steps can lift a straight pipe placed on the two first fixed steps, and the two third movable steps can lift a straight pipe placed on the two second fixed steps, when the first movable step is moved to be flush with the first fixed step, the second movable step is moved to be flush with the second fixed step, and the third movable step is moved to be flush with the third fixed step, the straight pipe lifted by the first movable step can be rolled onto the first fixed step, the straight pipe lifted by the second movable step can be rolled onto the second fixed step, and the straight pipe lifted by the third movable step can be rolled onto the third fixed step; the third fixed step is arranged opposite to the feeding seat, so that the straight pipe rolled onto the third fixed step can be rolled onto the feeding seat along the third fixed step, and a groove for positioning the straight pipe is arranged on the feeding seat, and a box plate for limiting the straight pipe left and right is arranged on the left and right sides of the storage rack.

[0018] Further, the aforementioned pipe plastic part assembly production line, wherein: the outfeed seat is arranged obliquely, so that the straight pipe placed on the outfeed seat can roll out of the outfeed seat by itself.

[0019] Further, the pipe plastic part assembly production line, wherein: a left and right slideable adjusting frame, a lead screw, a transmission nut are arranged on the left and right sides of the frame respectively, the outer end of the lead screw is installed on the frame through a bearing, a crank is fixed on the outer end of the lead screw for manually driving the lead screw to rotate, the transmission nut is fixed with the adjusting frame, the inner end of the lead screw is threadedly connected with the transmission nut, the transmission nut can move left and right with the adjusting frame after the lead screw is driven to rotate by the crank, so that the distance between the two adjusting frames can be adjusted, the two wide type air cylinders fingers, the first abutting plate and the lock head assembly mechanism, the second abutting plate and the intermediate section assembly mechanism, the third abutting plate and the riveting point device, the fourth abutting plate and the end cover assembly mechanism of each clamping seat are respectively installed on the two adjusting frames.

[0020] Further, the pipe plastic part assembly production line, wherein: the transfer frame is composed of a left transfer frame body and a right transfer frame body, the lifting frame is composed of a left lifting frame body and a right lifting frame body, each transfer seat is composed of a left transfer block and a right transfer block, grooves capable of positioning straight pipes are arranged on the left and right transfer blocks, the left lifting frame body is installed on the left transfer frame body, the right lifting frame body is installed on the right transfer frame body, the left transfer block of the transfer seat is fixed on the left lifting frame body, the right transfer block of the transfer seat is fixed on the right lifting frame body, and the left and right transfer frame bodies are respectively installed on the two adjusting frames.

[0021] The pipe plastic part assembly production line has the advantages that the lock head, the intermediate section and the end cover can be efficiently, reliably and accurately assembled on the straight pipe, the processing efficiency is greatly improved, the labor cost is greatly reduced, and the product quality is excellent and stable. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structural schematic view of the pipe plastic part assembly production line.

[0023] Figure 2 It is a structural schematic view of one state of the lock head assembly mechanism.

[0024] Figure 3 It is a structural schematic view of another state of the lock head assembly mechanism.

[0025] Figure 4 It is a structural schematic view of the finger block.

[0026] Figure 5 It is a structural schematic view of one state of the intermediate section assembly mechanism.

[0027] Figure 6 It is a structural schematic view of Figure 5 It is an enlarged structural schematic view of position A.

[0028] Figure 7Structure schematic diagram of another state of the intermediate section assembling mechanism.

[0029] Figure 8 Structure schematic diagram of one perspective of the end cover assembling mechanism.

[0030] Figure 9 Structure schematic diagram of another perspective of the end cover assembling mechanism.

[0031] Figure 10 Structure schematic diagram of Figure 8 Enlarged structure schematic diagram of B.

[0032] Figure 11 Structure schematic diagram of Figure 9 Enlarged structure schematic diagram of C. DETAILED DESCRIPTION

[0033] The application will be further described below in connection with specific embodiments and drawings.

[0034] As Figure 1As shown, the pipe plastic part assembly production line comprises a rack 1, an upper feeding seat 2, a first clamping seat 3, a second clamping seat 4, a third clamping seat 5, a fourth clamping seat 6 and a discharging seat 7 are sequentially and spacedly arranged on the rack 1 from back to front, a straight pipe feeding device 8 capable of placing the straight pipes 9 on the upper feeding seat 2 one by one from left to right is arranged on the rack 1, each clamping seat can clamp and position the straight pipes 9 placed from left to right, a movable transfer frame 10 capable of moving horizontally forward and backward is further arranged on the rack 1, a transfer driving mechanism capable of driving the movable transfer frame 10 to move forward and backward is further arranged on the rack 1, a lifting frame 11 is arranged on the movable transfer frame 10, a lifting driving mechanism capable of driving the lifting frame 11 to lift is arranged on the movable transfer frame 10, five transfer seats 12 are arranged on the lifting frame 11 and spacedly arranged along the front and back direction, the five transfer seats 12 correspond to the upper feeding seat 2 and each clamping seat one by one, after the lifting frame 11 moves upward under the driving of the lifting driving mechanism, the five transfer seats 12 can respectively hold one straight pipe 9 placed on the upper feeding seat 2 and each clamping seat, then the movable transfer frame 10 moves forward under the driving of the transfer driving mechanism, and then the lifting frame 11 moves downward under the driving of the lifting driving mechanism, so that the five straight pipes 9 can be respectively transferred to each clamping seat and the discharging seat 7, a first abutting plate 314 and a first abutting driving mechanism capable of driving the first abutting plate 314 to move left and right are arranged on the left side of the first clamping seat 3, a lock head assembly mechanism 13 and a lock head feeding mechanism are arranged on the right side of the first clamping seat 3, the lock head assembly mechanism 13 can insert the lock head 36 provided by the lock head feeding mechanism into the right end of the straight pipe 9, and the first abutting plate 314 can abut the left end of the straight pipe 9 when the right end of the straight pipe 9 is inserted with the lock head 36, a second abutting plate 414 and a second abutting driving mechanism capable of driving the second abutting plate 414 to move left and right are arranged on the right side of the second clamping seat 4, an intermediate section assembly mechanism 14 and an intermediate section feeding mechanism are arranged on the left side of the second clamping seat 4, the intermediate section assembly mechanism 14 is located on the same side as the first abutting plate 314, the intermediate section assembly mechanism 14 can sleeve the intermediate section 47 provided by the intermediate section feeding mechanism on the straight pipe 9, and the second abutting plate 414 can abut the right end of the straight pipe 9 when the left end of the straight pipe 9 is sleeved with the intermediate section 47, a third abutting plate 24 and a third abutting driving mechanism capable of driving the third abutting plate 24 to move left and right are arranged on the left side of the third clamping seat 5, a rivet point device 15 capable of moving left and right and a rivet point driving mechanism capable of driving the rivet point device 15 to move left and right are arranged on the right side of the third clamping seat 5, the third abutting plate 24 is located on the same side as the intermediate section assembly mechanism 14, the right end of the straight pipe 9 inserted with the lock head 36 can be inserted into the rivet point device 15 for rivet point processing after the rivet point device 15 moves toward the straight pipe 9 positioned on the third clamping seat 5 under the driving of the rivet point driving mechanism, so that the lock head 36 can be fixed with the end of the straight pipe 9, and the third abutting plate 24 can abut the left end of the straight pipe 9 when the right end of the straight pipe 9 is riveted,A fourth abutting plate 622 is arranged on the right side frame 1 of the fourth clamping seat 6, and a fourth abutting driving mechanism is arranged to drive the fourth abutting plate 622 to move left and right, and an end cover assembling mechanism 16 and an end cover feeding mechanism are arranged on the left side frame 1, the end cover assembling mechanism 16 is located on the same side as the third abutting plate 24, the end cover assembling mechanism 16 can first apply glue in the inner cavity of the end cover 23 provided by the end cover feeding mechanism, and then can cover the end cover 23 on the left end of the straight pipe 9, and the fourth abutting plate 622 provides the other end of the straight pipe 9 to abut when covering the end cover 23 on one end of the straight pipe 9. The abutting driving mechanism can drive the abutting plate to move away from the straight pipe 9, so as not to hinder the transfer of the straight pipe 9.

[0035] The transfer driving mechanism, the lifting driving mechanism, each abutting driving mechanism, and the rivet point driving mechanism are all air cylinders.

[0036] In the embodiment, as shown in Figure 2 , Figure 3 , the structure of the lock head assembling mechanism 13 is that a lock head mounting seat 32 that can slide left and right is arranged on the frame 1, and a lock head pushing mechanism is arranged to drive the lock head mounting seat 32 to move left and right, the lock head mounting seat 32 is installed on the frame 1 through a linear guide rail, a push column 33 that extends left and right is arranged on the lock head mounting seat 32, and a push driving mechanism is arranged to drive the push column 33 to move left and right, a lock head feeding finger 34 that extends forward and backward horizontally is arranged on the lock head mounting seat 32, and a lock head rotating cylinder 35 is arranged to drive the lock head feeding finger 34 to swing 180 degrees up and down and move forward and backward, the lock head feeding finger 34 can grab the lock head 36 vertically along the axial direction of the lock head 36, then after swinging 180 degrees up, the grabbed lock head 36 can be transferred to the opposite side of the push column 33, at this time, the lock head mounting seat 32 moves towards the straight pipe 9 positioned on the first clamping seat 3 under the driving of the lock head pushing mechanism, and the lock head 36 grabbed by the lock head feeding finger 34 can be shallowly inserted into the port of the straight pipe 9 under the driving of the lock head mounting seat 32, after the lock head feeding finger 34 releases the lock head 36, the push column 33 can push the lock head 36 under the driving of the push driving mechanism, so that the lock head 36 can be inserted into the port of the straight pipe 9.

[0037] As shown in Figure 4As shown, a correction clamping finger 38 is provided on the frame 1 inside the push column 33. A finger block 39 is fixed on each of the two clamping fingers of the correction clamping finger 38. The two finger blocks 39 are arranged front and back. A clamping groove 310 is provided on the inner side wall of the two finger blocks 39 respectively. An arc-shaped protrusion 311 is provided in the outer port of the two clamping grooves 310 respectively. A guide ramp 312 is provided on the outer end face of the arc-shaped protrusion 311. Under the drive of the correction clamping finger 38, the two finger blocks 39 can clamp each other front and back. At this time, the two clamping grooves 310 can position the straight tube 9 by clamping it on the end of the straight tube 9. The two arc-shaped protrusions 311 can be joined together to form a correction channel that is coaxial with the straight tube 9 and located outside the port of the straight tube 9. During insertion, the locking head 36 enters the correction channel under the guidance of the guide ramp 312. Then, the locking head 36 can be smoothly inserted into the port of the straight tube 9 under the guidance of the correction channel.

[0038] Both the lock head pushing mechanism and the push-drive mechanism are pneumatic cylinders. The lock head feeding finger 34 and the alignment clamping finger 38 are both pneumatic fingers.

[0039] like Figure 5 , Figure 6 , Figure 7 As shown, the structure of the intermediate section assembly mechanism 14 is as follows: an intermediate section mounting base 42 that can slide left and right is provided on the frame 1, and an intermediate section pushing mechanism that can drive the intermediate section mounting base 42 to move left and right. The intermediate section mounting base 42 is mounted on the frame 1 via a linear guide rail. On the intermediate section mounting base 42, there is an intermediate section feeding finger 43 arranged horizontally in a front-back direction, an intermediate section rotary cylinder 44 that can drive the intermediate section feeding finger 43 to swing back and forth 180 degrees upward, a mandrel 45 arranged horizontally in a left-right direction and a mandrel driving mechanism that can drive the mandrel 45 to move left and right, a paddle 46 and a paddle driving mechanism that can drive the paddle 46 to move left and right. The intermediate section feeding finger 43 is a pneumatic finger, and the intermediate section feeding finger 43 can grip the intermediate section 47 perpendicular to the axial direction of the intermediate section 47. Then, after swinging upwards 180 degrees, the grasped intermediate section 47 can be moved to the opposite side of the mandrel 45. At this time, the mandrel 45 extends towards the intermediate section 47 under the drive of the mandrel drive mechanism. The mandrel 45 can pass through the intermediate section 47, so that the intermediate section 47 can be fitted onto the mandrel 45. Thus, after the intermediate section feeding finger 43 releases the intermediate section 47, the intermediate section 7 can remain on the mandrel 45. Then, the intermediate section mounting seat 42 moves towards the straight tube 9 positioned on the second clamping seat 4 under the drive of the intermediate section pushing mechanism. The head of the mandrel 45 can be inserted into the port of the straight tube 9 under the drive of the intermediate section mounting seat 42. Then, the lever 46 moves towards the straight tube 9 under the drive of the lever drive mechanism. The lever 46 can push the intermediate section 47, so that the intermediate section 47 can slide along the mandrel 45 onto the straight tube 9.

[0040] In the embodiment, the dial 46 is annular, the dial 46 is sleeved on the mandrel 45, and the dial 46 is arranged in an annular shape to reliably dial the middle section 47.

[0041] The mandrel 45 is provided with a shaping air cylinder finger 416 on the inner side of the frame 1, and one clamping block 417 is mounted on each of the two clamping fingers of the shaping air cylinder finger 416. Opposite side walls of the two clamping blocks 417 are respectively provided with a shaping groove 419 and a clamping groove 418, the shaping groove 419 is located outside the clamping groove 418, and the outer end of the shaping groove 419 is inclined. When the two clamping blocks 417 are clamped by the driving of the shaping air cylinder finger 416, the two clamping grooves 418 can clamp the outer side of the straight pipe 9 to position the straight pipe 9, and the two shaping grooves 419 can embrace the end of the straight pipe 9. An annular gap is left between the two shaping grooves 419 and the straight pipe 9, which can allow the middle section 47 to pass through. When the middle section 47 is pushed and slides to the end of the straight pipe 9, the head of the middle section 47 will first enter the two spliced shaping grooves 419 under the guidance of the inclined angle. The two spliced shaping grooves 419 can pre-shape the middle section 47, so that the middle section 47 can be smoothly sleeved on the straight pipe 9.

[0042] The middle section pushing mechanism and the mandrel driving mechanism are both air cylinders. The dial driving mechanism includes an air cylinder and a long strip plate. The long strip plate moves left and right under the driving of the air cylinder, and the dial 46 is mounted on the long strip plate.

[0043] As Figure 8 , Figure 9 , Figure 10 , Figure 11As shown, the structure of the end cap assembly mechanism 16 is that an end cap mounting seat 62 capable of sliding left and right is arranged on the rack 1, and an end cap mounting seat driving mechanism capable of driving the end cap mounting seat 62 to move left and right, an end cap feeding finger 63 horizontally arranged in front and back direction, and a first end cap rotating cylinder 64 capable of driving the end cap feeding finger 63 to swing 180 degrees up and down and back and forth, a glue machine 65 capable of sliding left and right, and a glue machine driving mechanism capable of driving the glue machine 65 to move left and right, a rotating seat 66, and a second end cap rotating cylinder 67 capable of driving the rotating seat 66 to rotate 180 degrees back and forth horizontally, the end cap mounting seat 62 and the glue machine 65 are both installed on the rack 1 through linear guide rails, a pushing column 68 capable of moving left and right is arranged on the end cap mounting seat 62, and a pushing driving mechanism capable of driving the pushing column 68 to move left and right, an end cap grabbing finger 69 horizontally arranged in front and back direction, and a third end cap rotating cylinder 610 capable of driving the end cap grabbing finger 69 to swing 180 degrees up and down and back and forth are arranged on the end cap mounting seat 62, an end cap glue applying finger 611 is installed on the rotating seat 66, and a glue self-rotating mechanism for driving the end cap glue applying finger 611 to rotate is arranged on the rotating seat 66, the end cap glue applying finger 611 is located on the inner side of the glue machine 65, the end cap grabbing finger 69 is located between the end cap glue applying finger 611 and the pushing column 68, the pushing column 68 is located in front of the end cap grabbing finger 69, the end cap feeding finger 63 can vertically grab the end cap 23 along the end cap axis, then after swinging 180 degrees, the end cap feeding finger 63 can move the grabbed end cap 23 to the position between the glue machine 65 and the end cap glue applying finger 611, then the end cap glue applying finger 611 located on the outer side can coaxially grab the tail end of the end cap 23, so that the end cap 23 can be handed over to the end cap glue applying finger 611, after the glue machine 65 translates to the inner side under the driving of the glue machine driving mechanism, the glue applying pipe of the glue machine 65 can be inserted into the end cap 23, after the end cap glue applying finger 611 rotates 360 degrees with the end cap 23 under the driving of the glue self-rotating mechanism, the glue machine 65 can apply a ring of glue on the inner cavity side wall of the end cap 23, then after the glue applying pipe leaves the end cap 23, the end cap glue applying finger 611 can be turned to the inner side after swinging 180 degrees horizontally backward with the end cap 23 under the driving of the second end cap rotating cylinder 67, at this time, the end cap 23 with the applied glue can be moved to the position between the two fingers of the end cap grabbing finger 69, then the end cap grabbing finger 69 can vertically grab the end cap 23 with the applied glue along the end cap axis, so that the end cap 23 with the applied glue can be handed over to the end cap grabbing finger 69, then the end cap grabbing finger 69 can swing 180 degrees upward under the driving of the third end cap rotating cylinder 610, so that the end cap 23 with the applied glue can be moved to the opposite side of the pushing column 68, then the end cap mounting seat 62 can move to the straight pipe 9 positioned on the fourth clamping seat 6 under the driving of the end cap mounting seat driving mechanism, the end cap 23 grabbed by the end cap grabbing finger 69 can be capped on the end of the straight pipe 9 under the driving of the end cap mounting seat 62, then the pushing column 68 can push the end cap 23 under the driving of the pushing driving mechanism, so that the end cap 23 can be capped in place on the end of the straight pipe 9.

[0044] The structure of the glue dispensing self-rotation mechanism is that a horizontal left-right arranged rotatable transmission shaft 612 is installed on the rotating seat 66, a servo motor 613 is installed on the rotating seat 66, and the end cover glue dispensing finger 611 is fixed on one end of the transmission shaft 612. The output shaft of the servo motor 613 and the other end of the transmission shaft 612 are both fixed with synchronous pulleys, and the servo motor 613 and the transmission shaft 612 are transmitted through a synchronous belt.

[0045] Two air path channels are arranged in the transmission shaft 612, the outer ports of the two air path channels are arranged on the end face of the transmission shaft 612 fixed with the end cover glue dispensing finger 611, and the two outer ports are respectively connected and communicated with the two air ports on the tail end of the end cover glue dispensing finger 611. The inner ports of the two air path channels are arranged on the side wall of the transmission shaft 612 in staggered manner. Two annular air grooves are arranged on the side wall of the through hole of the rotating seat 66 for inserting the transmission shaft 612, the two annular air grooves are respectively connected and communicated with the inner ports of the two air path channels in one-to-one correspondence, two air connection ports are arranged on the side wall of the rotating seat 66 and connected and communicated with the two annular air grooves in one-to-one correspondence, and the air pipes for controlling the action of the end cover glue dispensing finger 611 are respectively connected to the two air connection ports. In this way, the end cover glue dispensing finger 611 can be supplied with air to open and close.

[0046] The end cover pushing mechanism, the glue dispensing driving mechanism, and the pushing driving mechanism are all air cylinders. The end cover feeding finger 63, the end cover grabbing finger 69, and the end cover glue dispensing finger 611 are all pneumatic fingers.

[0047] In the embodiment, each clamping seat is composed of two broad type air cylinder fingers 22 arranged in left-right alignment, and the straight pipe 9 is supported and positioned on the rack 1 in left-right direction by being clamped by the two broad type air cylinder fingers 22 at both ends.

[0048] The lock head 36, the middle section 47, and the end cover 23 are all plastic parts, and the structures of the three feeding mechanisms all include a vibrating disc 17 for providing the plastic parts. The vibrating disc 17 is provided with a conveying channel 18, and the plastic parts conveyed outward by the vibrating disc 17 will slide downward and arrange in the conveying channel 18. The lower end of the conveying channel 18 is provided with a avoiding notch, each feeding finger can pass through the avoiding notch to clamp and grab the first arranged plastic part in the conveying channel 18, and because the upper surface of the lower end of the conveying channel 18 is open and the baffle 21 on the lower end of the conveying channel 18 is arranged as an arc-shaped plate that can avoid the plastic parts, each feeding finger can swing upward under the drive of the corresponding rotating air cylinder to take away the grabbed plastic part from the conveying channel 18. If the baffle on the lower end of the conveying channel 18 is a straight plate, the plastic part will collide with the upper part of the baffle when taken away, and the collision can be avoided by arranging the baffle as an arc-shaped plate.

[0049] A stop block 20 is arranged above the lower end of the conveying channel 18, and a stop block driving mechanism is arranged to drive the stop block 20 to move up and down. The stop block 20 is driven by the stop block driving mechanism to move downward and press the second plastic part in the conveying channel 18, so that the plastic part does not hinder the first plastic part to leave the lock head conveying channel 18. The stop block driving mechanism is a pneumatic cylinder.

[0050] The conveying channel 18 is fixed on the linear vibrator 19.

[0051] In the embodiment, the structure of the straight pipe feeding device comprises a storage rack 25 for placing straight pipes, a fixed step plate 26 and a liftable step plate 27 are arranged on the left and right sides of the front part of the storage rack 25 respectively, a step lifting device is arranged to drive the step plate 27 to lift, the step lifting device is a pneumatic cylinder, the rear parts of the fixed step plate 26 and the liftable step plate 27 are provided with three steps respectively, the three steps on the fixed step plate 26 are a first fixed step, a second fixed step and a third fixed step from bottom to top, the three steps on the liftable step plate 27 are a first movable step, a second movable step and a third movable step from bottom to top, the upper surfaces of the steps are arranged to be inclined downward from rear to front, the two fixed step plates 26 are arranged in alignment, the two liftable step plates 27 are arranged in alignment, the bottom of the storage rack 25 is arranged to be inclined downward from rear to front, so that the straight pipe 9 placed on the storage rack 25 can be inclined to the side surface of the two first fixed steps, the two first movable steps are lower than the bottom of the storage rack 25, the first movable step can be moved to a position in alignment with the first fixed step, the second movable step can be moved to a position in alignment with the second fixed step, and the third movable step can be moved to a position in alignment with the third fixed step after the two liftable step plates 27 are driven by the respective step lifting devices to move upward, in addition, the two first movable steps can lift a straight pipe 9 inclined to the side surface of the first fixed step, the two second movable steps can lift a straight pipe 9 placed on the two first fixed steps, and the two third movable steps can lift a straight pipe 9 placed on the two second fixed steps during the lifting of the two liftable step plates 27, when the first movable step is moved to the position in alignment with the first fixed step, the second movable step is moved to the position in alignment with the second fixed step, and the third movable step is moved to the position in alignment with the third fixed step, the straight pipe 9 lifted by the first movable step can roll to the first fixed step, the straight pipe 9 lifted by the second movable step can roll to the second fixed step, and the straight pipe 9 lifted by the third movable step can roll to the third fixed step; the third fixed step is arranged in abutment with the feeding seat 2, so that the straight pipe 9 rolled to the third fixed step can roll to the feeding seat 2 along the third fixed step, the feeding seat 2 is provided with a groove for positioning the straight pipe 9, and a box plate for limiting the straight pipe 9 leftward and rightward is arranged on the left and right sides of the storage rack 25 respectively.

[0052] The discharge seat 7 is arranged obliquely, so that the straight pipe 9 placed on the discharge seat 7 can roll forward by itself and be discharged.

[0053] On the left and right sides of the frame 1, respectively, are arranged a left and right slideable adjusting frame 28, a lead screw 29, a transmission nut, the outer end of the lead screw 29 is installed on the frame 1 through a bearing, and a handle 30 for manually driving the lead screw 29 to rotate is fixed on the outer end of the lead screw 29, the transmission nut is fixed with the adjusting frame 28, the inner end of the lead screw 29 is threadedly connected with the transmission nut, after the lead screw 29 is driven to rotate through the handle 30, the transmission nut can move left and right with the adjusting frame 28, so that the distance between the two adjusting frames 28 can be adjusted, the two wide type air cylinders fingers 22, the first abutting plate 314 and the lock head assembly mechanism 13, the second abutting plate 414 and the middle section assembly mechanism 14, the third abutting plate 24 and the riveting point device 15, the fourth abutting plate 622 and the end cover assembly mechanism 16 of each clamping seat are respectively installed on the two adjusting frames 28.

[0054] The transfer frame 10 is composed of a left transfer frame body and a right transfer frame body, the lifting frame 11 is composed of a left lifting frame body and a right lifting frame body, and each transfer seat 12 is composed of a left transfer block and a right transfer block, the left and right transfer blocks are both provided with grooves capable of positioning the straight pipe 9, the left lifting frame body is installed on the left transfer frame body, the right lifting frame body is installed on the right transfer frame body, the left transfer block of the transfer seat 12 is fixed on the left lifting frame body, the right transfer block of the transfer seat 12 is fixed on the right lifting frame body, and the left and right transfer frame bodies are respectively installed on the two adjusting frames 28.

Claims

1. Pipe and plastic parts assembly line, including: The frame is characterized by the following: A feeding seat, a first clamping seat, a second clamping seat, a third clamping seat, a fourth clamping seat, and a discharging seat are arranged sequentially from back to front on the frame. A straight pipe supply device is provided on the frame to place straight pipes one by one in a left-right orientation on the feeding seat. Each clamping seat can clamp and position the left-right oriented straight pipes. A transfer frame that can slide horizontally back and forth is also provided on the frame, along with a transfer drive mechanism that drives the transfer frame to slide back and forth. A lifting frame is provided on the transfer frame, along with a lifting drive mechanism that drives the lifting frame to rise and fall. Five transfer seats are arranged at intervals along the front-back direction on the lifting frame, each of the five transfer seats corresponding one-to-one with the feeding seat and each clamping seat. The lifting frame is driven by the lifting drive mechanism. After moving upwards, the five transfer seats can respectively lift a straight tube placed on the loading seat and each clamping seat. Then, the transfer frame moves forward under the drive of the transfer drive mechanism. Next, the lifting frame moves downwards under the drive of the lifting drive mechanism. The five straight tubes can be transferred to each clamping seat and the discharge seat respectively. On one side of the frame on both sides of the first clamping seat, there is a first abutment plate and a first abutment drive mechanism that can drive the first abutment plate to move left and right. On the other side of the frame, there is a lock head assembly mechanism and a lock head supply mechanism. The lock head assembly mechanism can insert the lock head provided by the lock head supply mechanism into one end of the straight tube. When the lock head is inserted into one end of the straight tube, the first abutment plate provides abutment for the other end of the straight tube. On one side of the frame on both sides of the second clamping seat, there is a first abutment plate. On one side of the frame, there are two abutment plates and a second abutment drive mechanism that can drive the second abutment plates to move left and right. On the other side of the frame, there is an intermediate section assembly mechanism and an intermediate section supply mechanism. The intermediate section assembly mechanism is located on the same side as the first abutment plate. The intermediate section assembly mechanism can fit the intermediate section provided by the intermediate section supply mechanism onto the straight pipe. When the intermediate section is fitted onto one end of the straight pipe, the second abutment plate provides abutment for the other end of the straight pipe. On one side of the frame on both sides of the third clamping seat, there are third abutment plates and a third abutment drive mechanism that can drive the third abutment plates to move left and right. On the other side of the frame, there are left-and-right sliding rivet devices and a rivet drive mechanism that can drive the rivet devices to move left and right. The third abutment plate is located on the same side as the intermediate section assembly mechanism. The rivet device is located on the rivet drive mechanism. Driven by the mechanism, the straight tube moves towards the straight tube positioned on the third clamping seat. The end of the straight tube with the locking head inserted can be inserted into the riveting device for riveting, so that the locking head can be fixed to the end of the straight tube. When the third abutment plate is riveted at one end of the straight tube, the other end of the straight tube abuts against it. On one side of the frame on both sides of the fourth clamping seat, there is a fourth abutment plate and a fourth abutment drive mechanism that can drive the fourth abutment plate to move left and right. On the other side of the frame, there is an end cap assembly mechanism and an end cap supply mechanism. The end cap assembly mechanism is located on the same side as the third abutment plate. The end cap assembly mechanism can first apply glue to the inner cavity of the end cap provided by the end cap supply mechanism, and then install the end cap on one end of the straight tube. When the fourth abutment plate is installed on one end of the straight tube, the other end of the straight tube abuts against it.

2. The pipe plastic parts assembly production line according to claim 1, characterized in that: The lock head assembly mechanism is structured as follows: a lock head mounting base that can slide left and right is mounted on the frame, and a lock head pushing mechanism that can drive the lock head mounting base to move left and right. On the lock head mounting base, there is a left-right oriented push column and a push drive mechanism that can drive the push column to move left and right, a lock head feeding finger arranged horizontally in a front-back direction, and a lock head rotating cylinder that can drive the lock head feeding finger to swing back and forth 180 degrees upwards. The lock head feeding finger can grasp the lock head perpendicular to the lock head axis, and after swinging 180 degrees upwards, it can move the grasped lock head to the opposite side of the push column. At this time, the lock head mounting base moves towards the straight tube positioned on the first clamping seat under the drive of the lock head pushing mechanism. The lock head held by the lock head feeding finger can be shallowly inserted into the port of the straight tube under the drive of the lock head mounting base. After the lock head feeding finger releases the end cover, the push column can push the lock head under the drive of the push drive mechanism, so that the lock head can be inserted into the port of the straight tube.

3. The tubular plastic parts assembly production line according to claim 2, characterized in that: A correction clamping finger is installed on the frame inside the push column. Each of the two clamping fingers of the correction clamping finger has a finger block fixed on it. The two finger blocks are arranged front and back. A clamping groove is provided on the inner side wall of the two finger blocks. An arc-shaped protrusion is provided in the outer port of the two clamping grooves. A guide ramp is provided on the outer end face of the arc-shaped protrusion. Driven by the correction clamping finger, the two finger blocks can clamp back and forth. At this time, the two clamping grooves can clamp the end of the straight tube on the first clamping seat to position the straight tube. The two arc-shaped protrusions can be joined together to form a correction channel that is coaxial with the straight tube and located outside the straight tube port. During insertion, the locking head enters the correction channel under the guidance of the guide ramp. Then, the locking head can be smoothly inserted into the straight tube port under the guidance of the correction channel.

4. The pipe plastic parts assembly production line according to claim 1, characterized in that: The intermediate section assembly mechanism consists of: an intermediate section mounting base that can slide left and right, and an intermediate section pushing mechanism that drives the intermediate section mounting base to move left and right, all mounted on the frame; an intermediate section feeding finger arranged horizontally in a front-to-back direction, and an intermediate section rotary cylinder that drives the feeding finger to swing back and forth 180 degrees upwards; a mandrel arranged horizontally in a left-to-right direction, and a mandrel drive mechanism that drives the mandrel to move left and right; and a paddle and a paddle drive mechanism that drives the paddle to move left and right. The intermediate section feeding finger can grip the intermediate section perpendicular to its axial direction and then swing upwards 180 degrees. Then, the gripped intermediate section can be moved to the opposite side of the mandrel. At this time, the mandrel extends towards the intermediate section under the drive of the mandrel drive mechanism. The mandrel can pass through the intermediate section, so that the intermediate section can be fitted onto the mandrel. Thus, after the intermediate section loading finger releases the intermediate section, the intermediate section can remain on the mandrel. Then, the intermediate section mounting seat moves towards the straight tube positioned on the second clamping seat under the drive of the intermediate section mounting seat. The head of the mandrel can be inserted into the port of the straight tube under the drive of the intermediate section mounting seat. Then, the lever moves towards the straight tube under the drive of the lever drive mechanism. The lever can push the intermediate section, so that the intermediate section can slide along the mandrel onto the straight tube.

5. The tubular plastic parts assembly production line according to claim 4, characterized in that: A shaping cylinder finger is installed on the frame inside the mandrel. A clamping block is installed on each of the two clamping fingers of the shaping cylinder finger. A shaping groove and a clamping groove are respectively provided on the opposite sidewalls of the two clamping blocks. The shaping groove is located outside the clamping groove. The outer end of the shaping groove is beveled. After the shaping cylinder finger drives the two clamping blocks to clamp, the two clamping grooves can position the straight tube by clamping the outside of the straight tube on the second clamping seat. The two shaping grooves can surround the end of the straight tube. At this time, there is an annular gap between the two shaping grooves and the straight tube, which allows the intermediate section to pass through. When the intermediate section is pushed and slid towards the end of the straight tube, the head of the intermediate section will first enter the two opposing shaping grooves under the guidance of the bevel. The two opposing shaping grooves can pre-round the intermediate section, so that the intermediate section can smoothly slide onto the straight tube.

6. The tubular plastic parts assembly production line according to claim 1, characterized in that: The end cap assembly mechanism consists of the following components: a left-right sliding end cap mounting base and an end cap pushing mechanism that drives the end cap mounting base to move left and right; a horizontally arranged end cap feeding finger and a first end cap rotary cylinder that drives the end cap feeding finger to swing back and forth 180 degrees upwards; a left-right sliding glue applicator and a glue applicator driving mechanism that drives the glue applicator to move left and right; a rotating base and a second end cap rotary cylinder that drives the rotating base to rotate back and forth horizontally 180 degrees backwards; a pushing column and a pushing driving mechanism that drives the pushing column to move left and right on the end cap mounting base; and a front... The machine features a horizontally arranged end cap gripping finger and a third end cap rotary cylinder that drives the gripping finger to swing back and forth 180 degrees upwards. An end cap gluing finger and a gluing rotation mechanism for driving its rotation are mounted on a rotating base. The gluing finger is located inside the gluing machine, while the gripping finger is positioned between it and a pusher column, which is located in front of the gripping finger. The feeding finger grips the end cap perpendicular to its axial direction, then, after swinging 180 degrees, moves the gripped end cap between the gluing machine and the gluing finger. The outermost gluing finger then... The end cap is coaxially gripped at its tail end, allowing it to be transferred to the end cap glue-applying fingers. Driven by the glue-applying drive mechanism, the glue-applying machine moves inwards, inserting its glue-applying tube into the end cap. Driven by the glue-applying rotation mechanism, the end cap glue-applying fingers rotate the end cap 360 degrees, applying a ring of glue to the inner wall of the end cap. After the glue-applying tube leaves the end cap, the end cap glue-applying fingers, driven by the second end cap rotating cylinder, swing the end cap horizontally backwards 180 degrees before turning inwards. At this point, the glued end cap is transferred between the two fingers of the end cap gripping fingers. Then, the end cap gripping fingers move vertically... The end cap is axially gripped by the glued end cap, allowing it to be transferred to the end cap gripping fingers. Then, driven by the third end cap rotary cylinder, the end cap gripping fingers swing upwards 180 degrees, and the glued end cap is moved to the opposite side of the push column. Next, driven by the end cap pushing mechanism, the end cap mounting seat moves towards the straight tube positioned on the fourth clamping seat. The end cap held by the end cap gripping fingers is then lightly placed on the end of the straight tube under the drive of the end cap mounting seat. After the end cap gripping fingers release the end cap, the push column is pushed by the push driving mechanism, allowing the end cap to be properly installed on the end of the straight tube.

7. The tubular plastic parts assembly production line according to claim 6, characterized in that: The structure of the glue-applying rotating mechanism is as follows: a horizontally arranged, rotatable drive shaft and a servo motor are mounted on the rotating base. The glue-applying fingers of the end cap are fixed to one end of the drive shaft. Synchronous pulleys are fixed on the output shaft of the servo motor and the other end of the drive shaft. The servo motor and the drive shaft are driven by a synchronous belt.

8. The tubular plastic parts assembly production line according to claim 7, characterized in that: Two air passages are provided in the drive shaft. The outer ports of the two air passages are located on the end face of the drive shaft where the end cap glue-applying fingers are fixed. The two outer ports are respectively connected to two air ports on the tail end of the end cap glue-applying fingers. The inner ports of the two air passages are staggered and located on the side wall of the drive shaft. Two annular air grooves are provided on the side wall of the through hole of the drive shaft on the rotating seat. The two annular air grooves are respectively connected to the inner ports of the two air passages. Two air inlets are provided on the side wall of the rotating seat, which are respectively connected to the two annular air grooves. The air pipes used to control the action of the end cap glue-applying fingers are respectively connected to the two air inlets.

9. The tubular plastic parts assembly production line according to claim 1, characterized in that: Each clamping seat consists of two wide cylinder fingers arranged side to side. The straight tube is supported and positioned on the frame by being clamped at both ends by the two wide cylinder fingers. The lifting frame is located between the two wide cylinder fingers of each clamping seat.

10. The tubular plastic parts assembly production line according to claim 2, 3, 4, 5, 6, 7, or 8, characterized in that: The lock head, intermediate section, and end cap are all plastic parts. The structure of the three supply mechanisms includes: a vibratory feeder for providing plastic parts, a conveying channel on the vibratory feeder, plastic parts conveyed outward by the vibratory feeder sliding downward and arranging in the conveying channel, and a clearance notch at the lower end of the conveying channel. Each feeding finger can pass through the clearance notch to grip the first plastic part arranged in the conveying channel from above and below. Furthermore, due to the open upper surface at the lower end of the conveying channel and the baffle at the lower port of the conveying channel being set as an arc-shaped plate that can avoid the plastic parts, each feeding finger can swing upward under the drive of its corresponding rotary cylinder and carry the gripped plastic part away from the conveying channel.

11. The tubular plastic parts assembly production line according to claim 10, characterized in that: A stop block and a stop block drive mechanism are provided above the lower end of the conveying channel. After the stop block moves downward under the drive of the stop block drive mechanism, it can press the second plastic part in the conveying channel so that the plastic part can leave the lock head conveying channel without obstructing the first plastic part from leaving.

12. The tubular plastic parts assembly production line according to claim 10, characterized in that: The conveying channel is fixed to the linear vibrator.

13. The tubular plastic parts assembly production line according to claim 4 or 5, characterized in that: The paddle is ring-shaped and is fitted onto the mandrel.

14. The tubular plastic parts assembly production line according to claim 1, characterized in that: The straight pipe supply device includes a storage rack for holding straight pipes. On the left and right sides of the front of the storage rack are a fixed step plate, a liftable step plate, and a step lifting device that drives the liftable step plate to rise and fall. Both the fixed and liftable step plates have three steps at their rear. The three steps on the fixed step plate, from bottom to top, are designated as a first fixed step, a second fixed step, and a third fixed step. The three steps on the liftable step plate, from bottom to top, are designated as a first movable step, a second movable step, and a third movable step. The upper surface of each step is inclined downwards from back to front. The two fixed step plates and the two liftable step plates are aligned left and right. The bottom of the storage rack is inclined downwards from back to front, allowing the straight pipes placed on the storage rack to lean forward against the sides of the two first fixed steps. The two first movable steps are lower than the bottom of the storage rack. After the two liftable step plates move upwards under the drive of their respective step lifting devices, the first movable step moves to a position flush with the first fixed step, and simultaneously, the second movable step moves to a position flush with the second fixed step. Positionally, the third moving step can move to a position flush with the third fixed step. Additionally, during the ascent of the two lifting steps, the two first moving steps can lift a straight pipe resting against the side of the first fixed step, the two second moving steps can lift a straight pipe placed on the two first fixed steps, and the two third moving steps can lift a straight pipe placed on the two second fixed steps. When the first moving step moves to a position flush with the first fixed step, the second moving step moves to a position flush with the second fixed step, and the third moving step moves to a position flush with the third fixed step, the straight pipe lifted by the first moving step can roll onto the first fixed step, the straight pipe lifted by the second moving step can roll onto the second fixed step, and the straight pipe lifted by the third moving step can roll onto the third fixed step. The third fixed step is arranged opposite to the loading seat, allowing the straight pipe rolling onto the third fixed step to roll along the third fixed step onto the loading seat. The loading seat has grooves for positioning the straight pipe, and a box plate for lateral positioning of the straight pipe is provided on the left and right sides of the storage rack.

15. The tubular plastic parts assembly production line according to claim 1, characterized in that: The discharge seat is arranged at an angle, which allows the straight pipe placed on the discharge seat to roll forward and discharge material on its own.

16. The tubular plastic parts assembly production line according to claim 9, characterized in that: On the left and right sides of the frame, there is an adjustable frame that can slide left and right, a lead screw, and a transmission nut. The outer end of the lead screw is mounted on the frame via a bearing. A crank for manually driving the lead screw to rotate is also fixed on the outer end of the lead screw. The transmission nut is fixed to the adjustable frame, and the inner end of the lead screw is threadedly connected to the transmission nut. After the lead screw is driven to rotate by the crank, the transmission nut can move the adjustable frame left and right, so that the distance between the two adjustable frames can be adjusted. The two wide-type cylinder fingers of each clamping seat, the first abutment plate and the locking head assembly mechanism, the second abutment plate and the intermediate section assembly mechanism, the third abutment plate and the rivet device, and the fourth abutment plate and the end cover assembly mechanism are respectively installed on the two adjustable frames.

17. The tubular plastic parts assembly production line according to claim 16, characterized in that: The transfer frame consists of a left transfer frame and a right transfer frame; the lifting frame consists of a left lifting frame and a right lifting frame; and each transfer seat consists of a left transfer block and a right transfer block. Both the left and right transfer blocks are provided with grooves for positioning straight pipes. The left lifting frame is installed on the left transfer frame, and the right lifting frame is installed on the right transfer frame. The left transfer block of the transfer seat is fixed on the left lifting frame, and the right transfer block of the transfer seat is fixed on the right lifting frame. The left and right transfer frames are respectively installed on two adjusting frames.

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