A semi-automatic assembly line for high-pressure water heaters

Abstract

The present application relates to high pressure heater assembly technical field, specifically said is a kind of semi-automatic assembly production line of high pressure water heater, including the hoisting mechanism of hoisting head to the upper of shell, and the clamping positioning mechanism for clamping positioning shell and providing assembly nut for shell is arranged at the both sides of shell;When the lower end of bolt on upper flange plate and the upper surface of nut extrusion contact, drive bolt to move up, when upper flange plate continues to move down to a certain position, the head and the upper end of shell contact at this time, rely on extrusion rotating structure to drive several groups of bolts to rotate at this time, bolt is connected with nut thread when rotating, so as to facilitate the assembly of several groups of bolts and nut, without manual installation bolt and nut one by one, all bolts and nuts can be assembled at a time, to complete the assembly of head and shell, to improve the assembly efficiency between head and shell, improve the installation convenience of bolt and nut simultaneously.

Description

Technical Field

[0001] This invention relates to the field of high-pressure heater assembly technology, and more specifically to a semi-automated assembly production line for a high-pressure water heater. Background Technology

[0002] High-pressure water heaters are heat conversion devices. Currently, high-pressure heaters are divided into horizontal and vertical types. In the production of vertical high-pressure heaters, the heater head needs to be connected to the shell using flanges, bolts, and nuts. Currently, most methods involve hoisting the head upwards to the top of the shell, then driving it downwards until it contacts the end of the shell. Bolts are then manually inserted into the bolt holes of the flange and tightened with nuts to complete the assembly of the head and shell. This assembly method requires manual installation of each bolt and nut, resulting in low efficiency. Therefore, a semi-automated assembly line for high-pressure water heaters is proposed to improve the assembly efficiency between the head and shell, while also enhancing the ease of bolt and nut installation. Summary of the Invention

[0003] To address the problems in the prior art, this invention provides a semi-automated assembly production line for high-pressure water heaters, which improves the assembly efficiency between the end cap and the shell, while also improving the ease of installation of bolts and nuts.

[0004] The technical solution adopted by the present invention to solve its technical problem is a semi-automatic assembly production line for a high-pressure water heater, including a hoisting mechanism for hoisting the end cap onto the shell, and a clamping and positioning mechanism set on both sides of the shell for clamping and positioning the shell and providing assembly nuts for the shell. The hoisting mechanism is connected below a clamping mechanism for clamping the end cap and a pressing and rotating structure that automatically twists the bolts set on the end cap after the end cap contacts the top of the shell.

[0005] Specifically, the extrusion rotation structure includes a downward-opening sleeve and a tube rotatably connected inside the sleeve. The inner wall of the sleeve is provided with a spiral guide groove. A guide block that is slidably connected to the spiral guide groove is fixedly connected to the outer side of the tube. A horizontally arranged fixed plate is rotatably connected to the lower end of the tube. Several sets of mounting holes corresponding to bolts are distributed circumferentially on the fixed plate. A rotating seat is rotatably connected to each mounting hole. The lower surface of each rotating seat is provided with a polygonal groove. Several sets of vertically arranged damping gas spring rods are connected between the fixed plate and the sleeve. The rotating seat is driven by meshing with teeth arranged inside the tube through a one-way gear.

[0006] Specifically, a lower flange is fixedly connected to the upper end of the housing. The clamping and positioning mechanism includes arc-shaped positioning plates disposed on both sides of the top of the housing. The arc-shaped positioning plates clamp the lower part of the lower flange. Vertically arranged connecting plates are fixedly connected to the lower surface of each arc-shaped positioning plate. A horizontally arranged first pneumatic telescopic rod is fixedly connected to the side of the connecting plate away from the housing. The fixed end of each first pneumatic telescopic rod is connected to a vertically arranged support seat. The positioning telescopic rod is fixedly connected between the support seat and the arc-shaped positioning plate.

[0007] Specifically, the clamping and positioning mechanism further includes several sets of positioning grooves set on the arc-shaped positioning plate. Each positioning groove contains a nut. The side of the arc-shaped positioning plate closest to the housing is provided with a first moving groove that communicates with the positioning groove. The lower surface of the arc-shaped positioning plate is provided with a second moving groove that communicates with the positioning groove and the first moving groove.

[0008] Specifically, the lower end of the end cap is fixedly connected to an upper flange; the clamping mechanism includes a first connecting rod circumferentially distributed on the outer side of the sleeve, one end of the first connecting rod is fixedly connected to a vertically arranged second connecting rod, the lower end of the second connecting rod is fixedly connected to a horizontally arranged hydraulic telescopic rod, and the output end of the hydraulic telescopic rod is fixedly connected to an arc-shaped clamping plate, the arc-shaped clamping plate corresponding to the outer side of the upper flange.

[0009] Specifically, it also includes a conveying platform for conveying the housing, wherein the conveying platform is provided with several sets of vertically arranged housings; the support base is provided on both sides of the conveying platform.

[0010] Specifically, the hoisting mechanism includes a conveying track horizontally arranged above the conveying platform, a horizontally arranged electric slider slidably connected to the conveying track, vertically arranged columns fixedly connected to both ends of the conveying track, an electric telescopic rod fixedly connected to the lower surface of the electric slider, the fixed end of the electric telescopic rod being fixedly connected to the lower surface of the electric slider, and the output end of the electric telescopic rod being rotatably connected to the upper surface of the sleeve.

[0011] Specifically, the column is equipped with a horizontally arranged second pneumatic telescopic rod. The fixed end of the second pneumatic telescopic rod is fixedly connected to one side of the column. The output end of the second pneumatic telescopic rod is fixedly connected to a first extrusion plate. A crossbar is fixedly connected to the outside of the fixed end of the electric telescopic rod. One end of the crossbar is fixedly connected to a vertically arranged second extrusion plate. The second extrusion plate corresponds to the first extrusion plate. The fixed end of the second pneumatic telescopic rod is connected to the fixed end of the first pneumatic telescopic rod through a pipeline.

[0012] Specifically, the inner sides of both the arc-shaped clamping plate and the arc-shaped positioning plate are provided with anti-slip pads.

[0013] Specifically, an inclined reinforcing rod is fixedly connected between the column and the conveying track; a reinforcing rib is fixedly connected to the side of the support base away from the arc-shaped positioning plate.

[0014] The beneficial effects of this invention are:

[0015] (1) The semi-automatic assembly production line of the high-pressure water heater described in this invention, when the lower end of the bolt on the upper flange is pressed and contacted with the upper surface of the nut, it drives the bolt to move upward. When the upper flange continues to move downward to a certain position, the end cap contacts the upper end of the shell. At this time, the pressing and rotating structure drives several sets of bolts to rotate. When the bolts rotate, they are threadedly connected with the nuts, which facilitates the rapid assembly of several sets of bolts and nuts. There is no need to manually install the bolts and nuts one by one. All bolts and nuts can be assembled at one time, thereby completing the assembly of the end cap and the shell, thereby improving the assembly efficiency between the end cap and the shell, and improving the ease of installation of bolts and nuts.

[0016] (2) In the semi-automatic assembly line of the high-pressure water heater described in this invention, after the bolts and nuts are assembled, the drive clamping mechanism is reset and no longer clamps the end cap. At the same time, the arc-shaped positioning plate is reset and moves. When the arc-shaped positioning plate is reset and moves, the nut is slidably connected to the first moving groove, so that the nut is disengaged from the arc-shaped positioning plate. Meanwhile, the lower end of the bolt is easily disengaged from the arc-shaped positioning plate by relying on the second moving groove, thereby further improving the convenience and efficiency of assembling the end cap and the shell. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is an isometric view of the present invention;

[0019] Figure 2 This is a side view of the present invention;

[0020] Figure 3 for Figure 1 Enlarged view of region A;

[0021] Figure 4 This is an isometric view of the clamping mechanism of the present invention;

[0022] Figure 5 for Figure 4 Enlarged view of region B;

[0023] Figure 6 This is a bottom view of the clamping mechanism of the present invention;

[0024] Figure 7 for Figure 6 Enlarged view of region C;

[0025] Figure 8This is a schematic cross-sectional view of the sleeve of the present invention;

[0026] Figure 9 for Figure 8 Enlarged view of region D;

[0027] Figure 10 This is a schematic diagram of the structure after the sleeve is moved down according to the present invention;

[0028] Figure 11 for Figure 10 Enlarged view of region E;

[0029] Figure 12 for Figure 10 Enlarged view of region F;

[0030] In the diagram: 1. End cap; 2. Shell; 3. Nut; 4. Bolt; 5. Sleeve; 6. Tubing; 7. Spiral guide groove; 8. Guide block; 9. Fixing plate; 10. Mounting hole; 11. Rotating seat; 12. Polygonal groove; 13. Damped gas spring rod; 14. One-way gear; 15. Tooth; 16. Lower flange; 17. Arc-shaped positioning plate; 18. Connecting plate; 19. First pneumatic telescopic rod; 20. Support seat; 21. Positioning telescopic rod; 22. 23. Positioning slot; 24. First moving slot; 25. Second moving slot; 26. Upper flange; 27. First connecting rod; 28. Second connecting rod; 29. ​​Hydraulic telescopic rod; 30. Arc-shaped clamping plate; 31. Conveying platform; 32. Conveying track; 33. Electric slider; 34. Column; 35. Electric telescopic rod; 36. Second pneumatic telescopic rod; 37. First extrusion plate; 38. Crossbar; 39. Second extrusion plate; 40. Reinforcing rod; 51. Reinforcing rib. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0032] To improve the assembly efficiency between the end cap and the shell, and to enhance the ease of bolt and nut installation, as one embodiment of the present invention, such as... Figure 1 , Figure 2 , Figure 3 As shown, the semi-automatic assembly production line for a high-pressure water heater of the present invention includes a hoisting mechanism for hoisting the end cap 1 onto the housing 2, and a clamping and positioning mechanism provided on both sides of the housing 2 for clamping and positioning the housing 2 and providing the housing 2 with assembly nuts 3. The hoisting mechanism is connected below a clamping mechanism for clamping the end cap 1 and a pressing and rotating structure that automatically twists the bolts 4 set on the end cap 1 after the end cap 1 and the top of the housing 2 come into contact.

[0033] In use, several sets of bolts 4 are first inserted onto the end cap 1, and the end cap 1 is clamped and fixed by the clamping mechanism to ensure its stability. Then, the hoisting mechanism drives the clamping mechanism and the end cap 1 to move. When the end cap 1 moves to a certain distance, the clamping and positioning mechanism clamps and fixes the housing 2, while the nut 3 is delivered to the outside of the housing 2. When the end cap 1 continues to move to a certain position, it is now above the housing 2. The hoisting mechanism then drives the clamping mechanism and the end cap 1 to move downwards. When the end cap 1 moves to a certain position, the lower end of the bolts 4 on the end cap 1 and the nut 3 are aligned. The upper surface is pressed into contact, which causes the bolt 4 to move upward. When the end cap 1 continues to move downward to a certain position, the end cap 1 contacts the upper end of the shell 2. At this time, the pressing and rotating structure drives several sets of bolts 4 to rotate. When the bolts 4 rotate, they are threadedly connected to the nuts 3, which facilitates the quick assembly of several sets of bolts 4 and nuts 3. There is no need to manually install the bolts 4 and nuts 3 one by one. All bolts 4 and nuts 3 can be assembled at one time, thereby completing the assembly of the end cap 1 and the shell 2. This improves the assembly efficiency between the end cap 1 and the shell 2, and at the same time improves the ease of installation of bolts 4 and nuts 3.

[0034] It should be noted that after the bolt 4 and nut 3 are threaded together, an electric torque wrench is needed to tighten the bolt 4 and nut 3 to ensure the sealing and stability between the housing 2 and the end cap 1.

[0035] To facilitate the rotation of bolt 4, for example, as follows: Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 8 , Figure 9 As shown, the present invention further includes the following: the extrusion rotation structure includes a sleeve 5 with an opening facing downwards, and a sleeve 6 rotatably connected inside the sleeve 5. The inner wall of the sleeve 5 is provided with a spiral guide groove 7. The outer side of the sleeve 6 is fixedly connected with a guide block 8 that is slidably connected to the spiral guide groove 7. The lower end of the sleeve 6 is rotatably connected with a horizontally arranged fixing plate 9. The fixing plate 9 has several sets of mounting holes 10 corresponding to bolts 4 distributed circumferentially. A rotating seat 11 is rotatably connected in each mounting hole 10. The lower surface of the rotating seat 11 is provided with a polygonal groove 12. Several sets of vertically arranged damping gas spring rods 13 are connected between the fixing plate 9 and the sleeve 5. The rotating seat 11 is driven by meshing with teeth 15 arranged inside the sleeve 6 through a one-way gear 14.

[0036] In use, when the end cap 1 is above the housing 2, the hoisting mechanism drives the clamping mechanism and the end cap 1 to move downwards. When the end cap 1 moves to a certain position, the lower end of the bolt 4 on the end cap 1 presses against the upper surface of the nut 3, thereby pressing and driving the bolt 4 to move upwards. When the bolt 4 moves upwards, the upper end of the bolt 4 first moves into the corresponding polygonal groove 12. As the clamping mechanism continues to move downwards, the bolt 4 presses against the polygonal groove 12 and the rotating seat 11. When the rotating seat 11 moves upwards, it drives the fixing plate 9 and the sleeve 6 to move upwards. When the sleeve 6 moves upwards, it is slidably connected to the spiral guide groove 7 by the guide block 8, thereby driving the sleeve 6 to rotate upwards. When the sleeve 6 rotates upwards, it rotates and connects with the fixing plate 9, while simultaneously pressing the damping gas spring. The rod 13 prevents the bolt 4 and nut 3 from being damaged by rigid contact. The one-way gear 14 prevents the rotating seat 11 from rotating, thus ensuring the stability of the bolt 4. When the end cap 1 continues to move down to a certain position, the end cap 1 contacts the upper end of the housing 2. The damping gas spring rod 13 slowly resets and drives the fixing plate 9, rotating seat 11 and sleeve 6 to move down. The sleeve 6 rotates during the downward movement. The teeth 15 on the inner side of the sleeve 6 mesh with the one-way gear 14 to drive the rotating seat 11 to rotate. When the rotating seat 11 rotates, the polygonal groove 12 drives the bolt 4 to rotate. When the bolt 4 rotates, it is threadedly connected to the nut 3, which facilitates the rapid assembly of several sets of bolts 4 and nuts 3.

[0037] After the bolt 4 and nut 3 are assembled, the drive clamping mechanism no longer clamps the end cap 1. At the same time, the hoisting mechanism drives the sleeve 5 to move upward, so as to facilitate the subsequent assembly of the bolt 4 and nut 3 on the next set of end cap 1 and shell 2.

[0038] To facilitate clamping and fixing the outer side of the housing 2, for example, such as Figure 1 , Figure 2 , Figure 3 As shown, the present invention also includes a lower flange 16 fixedly connected to the upper end of the housing 2, and the clamping and positioning mechanism includes arc-shaped positioning plates 17 disposed on both sides of the top of the housing 2. The arc-shaped positioning plates 17 clamp the lower part of the lower flange 16. Vertically arranged connecting plates 18 are fixedly connected to the lower surface of the arc-shaped positioning plates 17. A horizontally arranged first pneumatic telescopic rod 19 is fixedly connected to the side of the connecting plate 18 away from the housing 2. The fixed end of the first pneumatic telescopic rod 19 is connected to a vertically arranged support seat 20. A positioning telescopic rod 21 is fixedly connected between the support seat 20 and the arc-shaped positioning plate 17.

[0039] In use, the hoisting mechanism drives the clamping mechanism and the end cap 1 to move. When the end cap 1 moves to a certain distance, it drives the first pneumatic telescopic rod 19 to move the arc-shaped positioning plate 17. When the arc-shaped positioning plate 17 moves to a certain distance, it clamps and fixes the outer side of the shell 2. At the same time, the upper surface of the arc-shaped positioning plate 17 is located below the lower flange 16 to ensure the stability of the shell 2. The positioning telescopic rod 21 can further ensure the stability of the arc-shaped positioning plate 17. The support base 20 can ensure the stability of the first pneumatic telescopic rod 19 and the positioning telescopic rod 21.

[0040] For example, such as Figure 1 , Figure 2 , Figure 3 As shown, the present invention also includes a plurality of positioning grooves 22 disposed on the arc-shaped positioning plate 17, wherein each positioning groove 22 is provided with a nut 3, and each side of the arc-shaped positioning plate 17 near the housing 2 is provided with a first moving groove 23 communicating with the positioning groove 22, and the lower surface of the arc-shaped positioning plate 17 is provided with a second moving groove 24 communicating with the positioning groove 22 and the first moving groove 23.

[0041] In use, several sets of nuts 3 are placed in the corresponding positioning slots 22. When the arc-shaped positioning plate 17 clamps and fixes the outer side of the housing 2, and the upper surface of the arc-shaped positioning plate 17 is below the lower flange 16, the clamping mechanism and the end cap 1 are moved down by the hoisting mechanism. When the end cap 1 moves down to a certain position, the lower end of the bolt 4 on the end cap 1 passes through the bolt mounting hole on the lower flange 16 and presses against the upper surface of the nut 3 on the arc-shaped positioning plate 17, thereby pressing and driving the bolt 4 to move up. When the bolt 4 moves up, it drives the rotating seat 11 and the fixing plate 9 to move up, thereby driving the sleeve 6 to rotate and move up. When the sleeve 6 rotates and moves up, it rotates and connects with the fixing plate 9, while pressing the damping gas spring rod 13. When the end cap 1 continues to move down to a certain position, the end cap 1 contacts the upper end of the housing 2. The damped gas spring rod 13 slowly resets and drives the fixed plate 9, rotating seat 11 and sleeve 6 to move down. The sleeve 6 rotates during the downward movement, thereby driving the rotating seat 11 to rotate. When the rotating seat 11 drives the bolt 4 to rotate, it is threadedly connected to the nut 3. At the same time, the lower end of the bolt 4 passes through the second positioning groove 22, which facilitates the quick assembly of the bolt 4 and the nut 3. After the bolt 4 and the nut 3 are assembled, the drive clamping mechanism resets and no longer clamps the end cap 1. At the same time, the arc-shaped positioning plate 17 resets and moves. When the arc-shaped positioning plate 17 resets and moves, the nut 3 is slidably connected to the first moving groove 23, which allows the nut 3 to disengage from the arc-shaped positioning plate 17. At the same time, the second moving groove 24 facilitates the disengagement of the lower end of the bolt 4 from the arc-shaped positioning plate 17, thereby further improving the convenience and efficiency of assembling the end cap 1 and the shell 2.

[0042] It should be noted that a magnet may be provided in the positioning groove 22 of the present invention. When the nut 3 is placed in the positioning groove 22, the nut 3 is magnetically attracted to the magnet, thereby ensuring the stability of the nut 3 and preventing the nut 3 from moving.

[0043] To facilitate clamping and securing the outer side of the upper flange 25, for example, such as... Figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 As shown, the present invention further includes an upper flange 25 fixedly connected to the lower end of the end cap 1; the clamping mechanism includes a first connecting rod 26 circumferentially distributed on the outer side of the sleeve 5, one end of the first connecting rod 26 being fixedly connected to a vertically arranged second connecting rod 27, the lower end of the second connecting rod 27 being fixedly connected to a horizontally arranged hydraulic telescopic rod 28, and the output ends of the hydraulic telescopic rod 28 being fixedly connected to arc-shaped clamping plates 29, the arc-shaped clamping plates 29 corresponding to the outer side of the upper flange 25.

[0044] When the end cap 1 needs to be hoisted, several sets of bolts 4 are placed vertically in the bolt mounting holes on the upper flange 25, ensuring that the upper end of the bolts 4 corresponds to the rotating seat 11. Then, several sets of hydraulic telescopic rods 28 are driven to move the arc-shaped clamping plate 29. After the arc-shaped clamping plate 29 moves to a certain position, it presses against the outer side of the upper flange 25. The arc-shaped clamping plate 29 clamps and fixes the outer side of the upper flange 25. Then, the hoisting mechanism drives the sleeve 5 to move upward. When the sleeve 5 moves upward, the first connecting rod 26, the second connecting rod 27, and the arc-shaped positioning rod drive the upper flange 25 and the end cap 1 to move upward synchronously, which facilitates the hoisting of the end cap 1.

[0045] After the end cap 1 moves above the housing 2, the hoisting mechanism drives the sleeve 5 and the end cap 1 to move downwards. When the end cap 1 moves to a certain position, the lower end of the bolt 4 on the upper flange 25 passes through the bolt mounting hole on the lower flange 16 and presses against the upper surface of the nut 3 on the arc-shaped positioning plate 17, thereby pressing and driving the bolt 4 to move upwards. When the bolt 4 moves upwards, it drives the rotating seat 11 and the fixed plate 9 to move upwards, thereby driving the sleeve 6 to rotate and move upwards. When the sleeve 6 rotates and moves upwards, it rotates and connects with the fixed plate 9, while simultaneously pressing the damping gas spring rod. 13. When the end cap 1 continues to move down to a certain position, the end cap 1 contacts the upper end of the shell 2. The damping gas spring rod 13 slowly resets and drives the fixed plate 9, the rotating seat 11 and the sleeve 6 to move down. The sleeve 6 rotates during the downward movement. It is driven by the meshing of the teeth 15 on the inner side of the sleeve 6 and the one-way gear 14, thereby driving the rotating seat 11 to rotate. The rotating seat 11 drives the bolt 4 to move up and squeeze, thereby driving the rotating seat 11 to rotate. Thus, when the bolt 4 rotates, it is threadedly connected to the nut 3, which facilitates the quick assembly of the bolt 4 and the nut 3.

[0046] For example, such as Figure 1 As shown, the present invention also includes a conveying platform 30 for conveying the housing 2, wherein the conveying platform 30 is provided with a plurality of vertically arranged housings 2; and the support base 20 is provided on both sides of the conveying platform 30.

[0047] In use, the conveying platform 30 facilitates the transport of the housing 2. When the housing 2 is transported to a certain position, the conveying platform 30 is closed, and the housing 2 is clamped and fixed by the arc-shaped positioning plate 17 on the support base 20, so as to ensure the stability of the housing 2 when it is assembled with the end cap 1. After the housing 2 and the end cap 1 are assembled, the conveying platform 30 is opened again, so as to facilitate the movement of the next set of housing 2 between the two sets of support bases 20, and to facilitate the assembly of the end cap 1 of the next set of housing 2, thereby improving the convenience of assembling the housing 2 and the end cap 1.

[0048] For example, such as Figure 1 , Figure 4 As shown, the present invention also includes a hoisting mechanism comprising a conveying track 31 horizontally disposed above the conveying platform 30, a horizontally disposed electric slider 32 slidably connected to the conveying track 31, vertically disposed columns 33 fixedly connected to both ends of the conveying track 31, an electric telescopic rod 34 fixedly connected to the lower surface of the electric slider 32, the fixed end of the electric telescopic rod 34 being fixedly connected to the lower surface of the electric slider 32, and the output end of the electric telescopic rod 34 being rotatably connected to the upper surface of the sleeve 5.

[0049] In use, several sets of hydraulic telescopic rods 28 are driven to move the arc-shaped clamping plate 29. After the arc-shaped clamping plate 29 clamps and fixes the outer side of the upper flange 25, the sleeve 5 is moved upward by the electric telescopic rod 34. When the sleeve 5 moves to a certain position, the electric slider 32 and the conveying track 31 drive the electric telescopic rod 34 to move. When the electric telescopic rod 34 moves a certain distance, the end cap 1 is located above the shell 2. Then the output end of the electric telescopic rod 34 is driven to move downward, thereby driving the sleeve 5 to move downward, so as to facilitate the assembly of the end cap 1 and the shell 2 and improve the assembly convenience.

[0050] The overall stability of the conveyor track 31 can be guaranteed by the support column 33.

[0051] For example, such as Figure 1 , Figure 2 As shown, the present invention further includes a horizontally arranged second pneumatic telescopic rod 35 on the column 33, the fixed end of the second pneumatic telescopic rod 35 being fixedly connected to one side of the column 33, the output end of the second pneumatic telescopic rod 35 being fixedly connected to a first extrusion plate 36, a crossbar 37 being fixedly connected to the outside of the fixed end of the electric telescopic rod 34, one end of the crossbar 37 being fixedly connected to a vertically arranged second extrusion plate 38, the second extrusion plate 38 corresponding to the first extrusion plate 36, and the fixed end of the second pneumatic telescopic rod 35 being connected to the fixed end of the first pneumatic telescopic rod 19 through a pipeline.

[0052] In use, after the electric slider 32 moves the electric telescopic rod 34, sleeve 5 and end cap 1 to a certain position, the second extrusion plate 38 on the outside of the electric telescopic rod 34 presses against the first extrusion plate 36. When the second pneumatic telescopic rod 35 is extruded, the output end of the first pneumatic telescopic rod 19 is extended through the pipeline. The first pneumatic telescopic rod 19 drives the arc-shaped positioning plate 17 to move and clamp and fix the outside of the housing 2. This makes it easier for the end cap 1 to move to a certain position and automatically drive the first pneumatic telescopic rod 19 and the arc-shaped positioning plate 17 to clamp and fix the housing 2, further improving the ease of assembly between the housing 2 and the end cap 1.

[0053] For example, the present invention also includes anti-slip pads on the inner sides of both the arc-shaped clamping plate 29 and the arc-shaped positioning plate 17.

[0054] During use, the anti-slip pads ensure the clamping stability of the arc-shaped clamping plate 29 on the upper flange 25, and at the same time ensure the clamping stability of the arc-shaped positioning plate 17 on the lower flange 16.

[0055] For example, such as Figure 1 , Figure 2As shown, the present invention also includes an inclined reinforcing rod 39 fixedly connected between the column 33 and the conveying track 31; and a reinforcing rib 40 fixedly connected to the side of the support base 20 away from the arc-shaped positioning plate 17.

[0056] During use, the reinforcing rod 39 can further ensure the stability between the conveying track 31 and the column 33, and the clamping ribs can further ensure the overall stability of the support base 20.

[0057] When using this invention, when the end cap 1 needs to be hoisted, several sets of bolts 4 are placed vertically in the bolt mounting holes on the upper flange 25, ensuring that the upper end of the bolts 4 corresponds to the rotating seat 11. Then, several sets of hydraulic telescopic rods 28 are driven to move the arc-shaped clamping plate 29. After the arc-shaped clamping plate 29 moves to a certain position, it presses against the outer side of the upper flange 25, and the outer side of the upper flange 25 is clamped and fixed by the arc-shaped clamping plate 29. Then, the sleeve 5 is moved upward by the electric telescopic rod 34. When the sleeve 5 moves upward, the upper flange 25 and the end cap 1 are moved upward synchronously by the first connecting rod 26, the second connecting rod 27, and the arc-shaped positioning rod, so as to facilitate the hoisting of the end cap 1.

[0058] Several sets of nuts 3 are placed in corresponding positioning slots 22. The electric slider 32 and conveyor rail 31 drive the electric telescopic rod 34 to move. After the electric telescopic rod 34 moves a certain distance, the second pressing plate 38 on the outer side of the electric telescopic rod 34 presses against the first pressing plate 36. When the second pneumatic telescopic rod 35 is compressed, the output end of the first pneumatic telescopic rod 19 extends through the pipeline. The first pneumatic telescopic rod 19 drives the arc-shaped positioning plate 17 to move and clamp and fix the outer side of the housing 2. Simultaneously, the upper surface of the arc-shaped positioning plate 17 is located below the lower flange 16, and the nuts 3 on the arc-shaped positioning plate 17 correspond to the bolt mounting holes on the lower flange 16, thus ensuring the stability of the housing 2.

[0059] When the end cap 1 is above the housing 2, the output end of the drive electric telescopic rod 34 moves down, thereby driving the sleeve 5 and the end cap 1 to move down. After the end cap 1 moves down to a certain position, the lower end of the bolt 4 on the upper flange 25 passes through the bolt mounting hole on the lower flange 16 and presses against the upper surface of the nut 3 on the arc-shaped positioning plate 17, thereby pressing and driving the bolt 4 to move up. When the bolt 4 moves up, the upper end of the bolt 4 first moves into the corresponding polygonal groove 12. As it continues to move down, the bolt 4 presses against the polygonal groove 12 and the rotating seat 11. When the rotating seat 11 moves up, it drives the fixing plate 9 and the sleeve 6 to move up. When the sleeve 6 moves up, it relies on the guide block 8 to slide and connect with the spiral guide groove 7, thereby driving the sleeve 6 to rotate and move up. When the sleeve 6 rotates and moves up, it rotates and connects with the fixing plate 9, while pressing against the damping gas spring rod 13. This can prevent the bolt 4 and the nut 3 from being damaged by rigid contact. Relying on the one-way gear 14, it can prevent the rotating seat 11 from rotating, thereby ensuring the stability of the bolt 4.

[0060] When the end cap 1 continues to move down to a certain position, it contacts the upper end of the shell 2. At the same time, the lower surface of the upper flange 25 contacts the upper surface of the lower flange 16. The damped gas spring rod 13 slowly resets the end cap 1, causing the fixed plate 9, rotating seat 11, and sleeve 6 to move down. During the downward movement, the sleeve 6 rotates. The teeth 15 on the inner side of the sleeve 6 mesh with the one-way gear 14, thereby driving the rotating seat 11 to rotate. The rotating seat 11 drives the bolt 4 to move up and press, causing the rotating seat 11 to rotate. This allows the bolt 4 to connect with the nut 3 when it rotates, facilitating the quick assembly of the bolt 4 and nut 3. It eliminates the need for manual installation of each bolt 4 and nut 3 individually, allowing all bolts 4 and nuts 3 to be assembled at once, thus completing the assembly of the end cap 1 and the shell 2.

[0061] After the bolt 4 and nut 3 are assembled, the drive arc-shaped clamping plate 29 no longer clamps the end cap 1. At the same time, the electric telescopic rod 34 drives the sleeve 5 to move upward, which facilitates the subsequent assembly of the bolt 4 and nut 3 on the next set of end caps 1 and shell 2. When the electric slider 32 resets and moves, it no longer squeezes the second pneumatic telescopic rod 35. At this time, the first pneumatic telescopic rod 19 resets and moves, so that the arc-shaped positioning plate 17 no longer clamps the shell 2. At the same time, the arc-shaped positioning plate 17 resets and moves. When the arc-shaped positioning plate 17 resets and moves, the nut 3 slides and connects with the first moving groove 23, so that the nut 3 is disengaged from the arc-shaped positioning plate 17. At the same time, the second moving groove 24 facilitates the disengagement of the lower end of the bolt 4 from the arc-shaped positioning plate 17, which further improves the convenience and efficiency of assembling the end cap 1 and shell 2. At this time, the conveying platform 30 can be opened again to move the next set of shell 2 between the two sets of support seats 20, which facilitates the assembly of the end cap 1 on the next set of shell 2, thus improving the convenience of assembling the shell 2 and end cap 1.

[0062] The foregoing has shown and described 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. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A semi-automated assembly line for high pressure water heaters, characterized in that, The lifting mechanism includes a lifting mechanism for lifting the head (1) above the shell (2), and a clamping and positioning mechanism arranged on both sides of the shell (2) for clamping and positioning the shell (2) and providing the shell (2) with an assembly nut (3), the lifting mechanism is connected below the clamping mechanism for clamping the head (1), and the extrusion rotating structure automatically twists the bolt (4) arranged on the head (1) after the head (1) and the shell (2) contact at the top; The extrusion rotating structure includes a sleeve (5) with an opening downward, and a sleeve (6) rotatably connected inside the sleeve (5), the inner wall of the sleeve (5) is provided with a spiral guide groove (7), the outer side of the sleeve (6) is fixedly connected with a guide block (8) in sliding connection with the spiral guide groove (7), the lower end of the sleeve (6) is rotatably connected with a horizontally arranged fixed plate (9), the fixed plate (9) is circumferentially distributed with a plurality of groups of mounting holes (10) corresponding to the bolts (4), the mounting holes (10) are all rotatably connected with rotating seats (11), the lower surfaces of the rotating seats (11) are all provided with polygonal grooves (12), a plurality of groups of vertically arranged damping gas springs (13) are connected between the fixed plate (9) and the sleeve (5), the rotating seats (11) are in meshing transmission with the teeth (15) arranged on the inner side of the sleeve (6) through one-way gears (14); The upper end of the shell (2) is fixedly connected with a lower flange plate (16), the clamping and positioning mechanism includes arc-shaped positioning plates (17) arranged on both sides of the top of the shell (2), the arc-shaped positioning plates (17) are clamped at the lower part of the lower flange plate (16), the lower surfaces of the arc-shaped positioning plates (17) are all fixedly connected with vertically arranged connecting plates (18), the sides of the connecting plates (18) away from the shell (2) are fixedly connected with horizontally arranged first gas pressure telescopic rods (19), the fixed ends of the first gas pressure telescopic rods (19) are all connected with vertically arranged support seats (20), the support seats (20) and the arc-shaped positioning plates (17) are fixedly connected with positioning telescopic rods (21); The clamping and positioning mechanism further includes a plurality of groups of positioning grooves (22) arranged on the arc-shaped positioning plates (17), the positioning grooves (22) are all placed with nuts (3), the sides of the arc-shaped positioning plates (17) close to the shell (2) are all provided with first moving grooves (23) in communication with the positioning grooves (22), the lower surfaces of the arc-shaped positioning plates (17) are provided with second moving grooves (24) in communication with the positioning grooves (22) and the first moving grooves (23); The lower end of the head (1) is fixedly connected with an upper flange plate (25), the clamping mechanism includes first connecting rods (26) circumferentially distributed on the outer side of the sleeve (5), one end of the first connecting rod (26) is fixedly connected with a vertically arranged second connecting rod (27), the lower end of the second connecting rod (27) is fixedly connected with a horizontally arranged hydraulic telescopic rod (28), the output ends of the hydraulic telescopic rods (28) are all fixedly connected with arc-shaped clamping plates (29), the arc-shaped clamping plates (29) correspond to the outer side of the upper flange plate (25).

2. A semi-automated assembly line for high pressure water heaters as claimed in claim 1, wherein, Also include a conveying platform (30) for conveying the shell (2), the conveying platform (30) is provided with several groups of vertically arranged shell (2); The support seat (20) is arranged on both sides of the conveying platform (30).

3. A semi-automated assembly line for high-pressure water heaters according to claim 2, characterized in that, The lifting mechanism comprises a conveying rail (31) horizontally arranged above the conveying platform (30), a horizontally arranged electric sliding block (32) is slidably connected to the conveying rail (31), two ends of the conveying rail (31) are fixedly connected with vertically arranged stand columns (33), a lower surface of the electric sliding block (32) is fixedly connected with an electric telescopic rod (34), a fixed end of the electric telescopic rod (34) is fixedly connected with the lower surface of the electric sliding block (32), and an output end of the electric telescopic rod (34) is rotatably connected with an upper surface of the sleeve (5).

4. The semi-automated assembly line for high-pressure water heaters according to claim 3, characterized in that, The stand column (33) is provided with a horizontally arranged second pneumatic telescopic rod (35), a fixed end of the second pneumatic telescopic rod (35) is fixedly connected with one side of the stand column (33), an output end of the second pneumatic telescopic rod (35) is fixedly connected with a first extrusion plate (36), an outer side of a fixed end of the electric telescopic rod (34) is fixedly connected with a cross bar (37), one end of the cross bar (37) is fixedly connected with a vertically arranged second extrusion plate (38), the second extrusion plate (38) corresponds to the first extrusion plate (36), and the fixed end of the second pneumatic telescopic rod (35) is in communication with the fixed end of the first pneumatic telescopic rod (19) through a pipeline.

5. A semi-automated assembly line for high-pressure water heaters according to claim 4, characterized in that, The inner sides of the arc-shaped clamping plate (29) and the arc-shaped positioning plate (17) are provided with anti-skid pads.

6. A semi-automated assembly line for high-pressure water heaters according to claim 5, characterized in that, The stand column (33) and the conveying rail (31) are fixedly connected with an obliquely arranged reinforcing rod (39); and the support seat (20) is fixedly connected with a reinforcing rib (40) away from the arc-shaped positioning plate (17).

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