CN108214659B

CN108214659B - Limiting mechanism for manufacturing water tank of solar water heater

Info

Publication number: CN108214659B
Application number: CN201810010398.5A
Authority: CN
Inventors: 朱海松; 周强
Original assignee: Zhuji Mailiao Mechanical Design Studio
Current assignee: Zhuji Hanjie Mechanical Parts Co ltd
Priority date: 2018-01-05
Filing date: 2018-01-05
Publication date: 2020-09-04
Anticipated expiration: 2038-01-05
Also published as: CN108214659A

Abstract

The invention provides a limiting mechanism for manufacturing a water tank of a solar water heater, and belongs to the technical field of solar water heater manufacturing. It has solved the problem of low in the prior art manufacturing efficiency. This a stop gear for making solar water heater water tank, comprises a workbench, set up on the workstation and be long banding work groove, this stop gear sets up on the workstation, including spacing seat, motor three and second lead screw, spacing seat is fixed on the workstation, the one end and the motor three of second lead screw are connected, the other end of second lead screw passes through bearing two and rotates the setting on the positioning seat with bearing frame two, the second lead screw includes body of rod two, body of rod two has two kinds of screw threads, half of body of rod two has forward screw thread, half of body of rod two has reverse screw thread, threaded connection nut three on the forward screw thread. The invention has the advantage of high manufacturing efficiency of the solar water heater.

Description

Limiting mechanism for manufacturing water tank of solar water heater

Technical Field

The invention belongs to the technical field of solar water heater manufacturing, and relates to a limiting mechanism for manufacturing a water tank of a solar water heater.

Background

The solar water heater is a heating device for converting solar energy into heat energy, and heats water from low temperature to high temperature so as to meet the requirement of hot water in life and production of people. The solar water heater is divided into a vacuum tube type solar water heater and a flat plate type solar water heater according to the structural form, mainly uses the vacuum tube type solar water heater as a main part, and occupies 95 percent of domestic market share. The vacuum tube type domestic solar water heater is composed of heat collecting tube, water storage tank and support, and can convert solar energy into heat energy, and mainly depends on the vacuum heat collecting tube, and the vacuum heat collecting tube can utilize the principle of that hot water floats upwards and cold water sinks to make water produce microcirculation to obtain the required hot water.

The inner barrel of the existing water storage tank mostly cannot realize automatic production in the production process, so that the problem of low manufacturing efficiency is caused.

Disclosure of Invention

The invention aims to solve the problems in the prior art, provides a limiting mechanism for manufacturing a water tank of a solar water heater, and has the characteristic of good limiting effect.

The purpose of the invention can be realized by the following technical scheme:

a limiting mechanism for manufacturing a water tank of a solar water heater comprises a workbench, wherein a long-strip-shaped working groove is formed in the workbench, and the limiting mechanism is arranged on the workbench and comprises a limiting seat, a motor III and a second screw rod, the limiting seat is fixed on the workbench, one end of the second screw rod is connected with the motor III, the other end of the second screw rod is rotatably arranged on a positioning seat through a bearing II and a bearing seat II, the second screw rod comprises a rod body II, the rod body II is provided with two threads, one half of the rod body II is provided with a forward thread, the other half of the rod body II is provided with a reverse thread, the forward thread is in threaded connection with a nut III, the reverse thread is in threaded connection with a nut IV, a slide block III is fixed on the nut III, a slide block IV is fixed on the nut IV, two slide bars parallel to the second screw rod are also fixed on the limiting seat, and the slide bars are respectively arranged on two, the third sliding block is arranged between the sliding rods in a sliding mode, the fourth sliding block is arranged between the sliding rods in a sliding mode, the first limiting block is fixed on the third sliding block, and the second limiting block is fixed on the fourth sliding block.

The working principle of the limiting mechanism is as follows: the second screw rod is provided with two threads, namely a forward thread and a reverse thread, and the first limiting block and the second limiting block can be close to or far away from each other by rotating the third motor; when the water tank separation device starts to work, the first limiting block and the second limiting block are close to each other, and the distance between the first limiting block and the second limiting block is smaller than the outer diameter of the water tank and used for preventing the water tank from separating; when the work is finished, the first limiting block and the second limiting block are far away from each other, and the distance between the first limiting block and the second limiting block is larger than the outer diameter of the water tank and used for blanking; the invention has the advantage of good limiting effect.

The workbench is provided with a base below, at least three cylinders I are fixed below the base, a rotating mechanism capable of horizontally rotating the workbench is arranged on the base and comprises a motor I, the motor I is fixed on the base, an output shaft of the motor I vertically upwards is fixed with a reinforcing plate, and the reinforcing plate is fixed with the workbench.

And a seventh air cylinder is arranged below two ends of the workbench. The cylinder seven plays a role of balancing the workbench during operation.

The worktable is sequentially provided with a clamping mechanism, a hoisting mechanism, a positioning mechanism and a driving mechanism along the direction of the working groove from the limiting seat.

Fixture include the fixing base, be fixed with cylinder six on the fixing base, six double-end cylinders for having piston rod one and piston rod two of cylinder, piston rod one of cylinder six is opposite with the orientation of piston rod two, the fixing base on still be fixed with mounting bracket one and mounting bracket two, mounting bracket one on articulated have arm lock one, mounting bracket two on articulated have arm lock two, arm lock one all is the arc and sets up relatively with arm lock two, piston rod one of cylinder six is articulated mutually with the lower extreme of arm lock one, piston rod two of cylinder six is articulated mutually with the lower extreme of arm lock two. Specifically, the piston rod of the cylinder six pushes outwards to enable the first clamping arm and the second clamping arm to rotate inwards, so that the water tank can be tightly clamped.

The upper end of the first clamping arm is fixed with a first gasket, and the upper end of the second clamping arm is fixed with a second gasket. The first gasket and the second gasket can enable the first clamping arm and the second clamping arm to better clamp the water tank.

The lifting mechanism comprises a plurality of groups of lifting components, each lifting component comprises a third air cylinder, a fixed frame and a lifting plate, the third air cylinder is fixed in a working groove, a piston rod of the third air cylinder vertically upwards is fixed with the lifting plate, the fixed frame is fixed on the working table and provided with two vertical sliding grooves, two ends of the lifting plate are slidably arranged in the sliding grooves, the lifting plate is symmetrically provided with two clamping strips, and the lifting plate is provided with a structure capable of adjusting the angle swing between the clamping strips. Specifically, a piston rod of the third air cylinder pushes upwards to drive the lifting plate to move upwards, and the lifting plate moves upwards to drive the water tank to move upwards.

The swing structure comprises two cylinders five, the two cylinders five are symmetrically fixed on the lower surface of the lifting plate, two through holes are formed in the lifting plate, piston rods of the cylinders five vertically penetrate out of the through holes upwards, one ends of the clamping strips are hinged in the through holes and can swing up and down, the clamping strips are provided with strip holes one, the piston rods of the cylinders five are fixedly provided with fixing columns one, and the fixing columns one are arranged in the strip holes one in a sliding mode. Specifically speaking, the piston rods of the two cylinders move upwards, so that the included angle between the clamping strips can be reduced, and the water tank can be tightly clamped due to the reduction of the included angle between the clamping strips.

The positioning mechanism comprises a positioning seat, a cylinder IV, a motor II, a first screw rod and a positioning plate, the positioning seat is fixed on the workbench, the positioning seat is provided with a positioning hole, the cylinder IV is fixed in the positioning hole, a piston rod of the cylinder IV is vertically upward, the positioning seat is also vertically provided with a plurality of sliding shafts, the positioning plate is sleeved on the sliding shafts in a sliding manner, one end of the first screw rod is connected with the motor II, the other end of the first screw rod is rotatably arranged on the positioning plate with a bearing seat I through a bearing I, the first screw rod comprises a rod I, the rod I is provided with two threads, one half of the rod I is provided with a forward thread, the other half of the rod I is provided with a reverse thread, the forward thread is in threaded connection with a nut I, the reverse thread is in threaded connection with a nut II, the nut I is fixedly provided with a slide block, the nut II is fixedly provided with a slide, the first sliding block is fixedly provided with a first clamping block, and the second sliding block is fixedly provided with a second clamping block. Because first lead screw has two kinds of screw threads of forward screw thread and reverse screw thread, so when second motor rotates, slider one and slider two are drawn close simultaneously or are kept away from, and when hoisting mechanism rose the water tank to a take the altitude, fix a position the water tank through drawing close slider one and slider two.

The first clamping block and the second clamping block are oppositely arranged at the top parts of the first clamping block and the second clamping block, and the upper half parts of the opposite surfaces are inclined surfaces. Adopt the inclined plane structure can be better to support by columniform water tank.

Actuating mechanism include support, cylinder two and push pedal, the support fix on the workstation, cylinder two fix on the support, the piston rod of cylinder two is fixed with the push pedal towards the groove direction of working, the support on still be fixed with the sliding strip of two parallels, the sliding is equipped with the sliding block on the sliding strip, sliding block and push pedal fixed mutually. Specifically speaking, the support is fixed on the workbench through the bolts, if the length of the batch of water tanks is too large as compared with the length of the last batch of water tanks, the position of the support on the workbench is adjusted through dismounting, if the length of the batch of water tanks is smaller as compared with the length of the last batch of water tanks, the support does not need to be dismounted, the piston rod of the second air cylinder pushes outwards to drive the push plate to move towards the limiting mechanism, and when the water tanks move to the limiting mechanism, the second air cylinder stops working.

The workbench is characterized in that a punching mechanism is further arranged above the workbench and comprises a rack, the rack is arranged above the workbench and is shaped like Jiong, a first electric drill and a second electric drill are arranged on the rack, a moving structure capable of driving the first electric drill and the second electric drill to move left and right is arranged on the rack, and a lifting structure capable of driving the first electric drill and the second electric drill to move up and down is arranged on the rack. Specifically speaking is fixed back at the water tank, the removal structure drives electric drill one and two horizontal migration location of electric drill, horizontal location finishes the back, start through elevation structure with electric drill one and two downstream movements of electric drill and start electric drill one and two pairs of water tanks of electric drill punch, once punch and finish the back, elevation structure drives electric drill one and two upward movements of electric drill, restart removal structure horizontal adjustment distance, restart elevating system after the adjustment finishes, operation more than relapse, punch to the surface of water tank, this hole is used for installing evacuated collector tube.

The lifting structure comprises a first oil cylinder and a second oil cylinder, wherein a first sliding block is fixed on a first cylinder body, a first mounting seat is vertically downward fixed on a piston rod of the first oil cylinder, a first electric drill is fixed on the first mounting seat, a first drill bit of the first electric drill is vertically downward, a second sliding block is fixed on a second cylinder body of the second oil cylinder, a second mounting seat is vertically downward fixed on the piston rod of the second oil cylinder, and a second electric drill is fixed on the second mounting seat and vertically downward drill bit of the second electric drill. A piston rod of the first oil cylinder moves downwards to drive a fifth sliding block to move downwards, and the fifth sliding block moves downwards to drive the first electric drill to move downwards; and a piston rod of the second oil cylinder moves downwards to drive the sixth sliding block to move downwards, and the sixth sliding block moves downwards to drive the second electric drill to move downwards.

The removal structure include the third lead screw, the one end of lead screw is connected with and enables its pivoted motor four, the horizontal rotation of third lead screw set up in the frame, half the body of rod of third lead screw has forward screw thread, half has reverse screw thread, the cover is equipped with nut five on the forward screw thread of third lead screw, be fixed with slider five on the nut five, the cover is equipped with nut six on the reverse screw thread of third lead screw, be fixed with slider six on the nut six. The third screw rod is provided with a forward thread and a reverse thread, the motor four rotates the nut five and the nut six to be close to or far away from each other, the first oil cylinder is arranged at one end of the rack when the motor four starts to work, and the second oil cylinder is arranged at the other end of the rack.

The two sides of the rack are fixedly provided with a first infrared distance meter, the first infrared distance meter is aligned to a drill bit of the first electric drill, the top of the rack is fixedly provided with a second infrared distance meter, and a measuring end of the second infrared distance meter is vertically downward. The precision of the distance from top to bottom to left and right is guaranteed by the aid of the first infrared distance meter and the second infrared distance meter, and punching quality is improved.

Compared with the prior art, the invention has the following advantages:

1. according to the invention, the first air cylinder, the first motor and the reinforcing plate are arranged, the workbench can rotate due to the motors and the reinforcing plate, the workbench is inclined due to the air cylinders, the inclined workbench is convenient to get off, and the working efficiency is improved.

2. The invention has the advantages of coarse adjustment by arranging the support, the second cylinder and the push plate, and fine adjustment by moving the support and the push plate.

3. According to the invention, through arranging the third cylinder, the fixing frame, the lifting plate and the clamping strip, the diameters of all water tanks are different, the height of the water tank can be accurately positioned aiming at different water tanks, and the punching accuracy is improved.

4. According to the invention, the limiting seat, the motor III, the second screw rod, the limiting block I and the limiting block II are arranged, so that the water tank cannot be separated during working, and the completion of the working safety is ensured.

5. According to the invention, the frame, the first electric drill, the second electric drill, the third screw rod, the fourth motor, the first oil cylinder and the second oil cylinder are arranged, so that the motors can move up and down and left and right to ensure the punching quality.

6. According to the invention, by arranging the first infrared distance meter and the second infrared distance meter, the horizontal and vertical distances between the first electric drill and the second electric drill can be accurately measured, and the punching quality is improved.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic perspective view of the present invention.

Fig. 3 is a partial schematic view of the present invention.

Fig. 4 is an enlarged view of the invention at a in fig. 3.

Fig. 5 is an enlarged view of the invention at B in fig. 3.

FIG. 6 is a schematic view of the positioning mechanism of the present invention.

Fig. 7 is an enlarged view of the invention at C in fig. 3.

Fig. 8 is a schematic view of the spacing mechanism of the present invention.

FIG. 9 is a schematic view of the hole punch mechanism of the present invention.

In the figure, 1, a workbench; 2. a first motor; 3. a first cylinder; 4. a support; 5. a second air cylinder; 6. pushing the plate; 7. a slide bar; 8. a slider; 9. a third air cylinder; 10. a fixed mount; 11. a lifting plate; 12. clamping strips; 13. a fifth cylinder; 14. positioning seats; 15. a cylinder IV; 16. a second motor; 17. positioning a plate; 18. a first sliding block; 19. a first clamping block; 20. a second sliding block; 21. a second clamping block; 22. a sixth air cylinder; 23. a first mounting frame; 24. a second mounting frame; 25. a first clamping arm; 26. a second clamping arm; 27. a limiting seat; 28. a third motor; 29. a first limiting block; 30. a second limiting block; 31. a third sliding block; 32. a fourth sliding block; 33. a frame; 34. a first electric drill; 35. a second electric drill; 36. a first oil cylinder; 37. a second oil cylinder; 38. a fifth sliding block; 39. a first mounting seat; 40. a sixth sliding block; 41. a second mounting seat; 42. a fourth motor; 43. and a seventh cylinder.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1-9, a limiting mechanism for manufacturing a water tank of a solar water heater comprises a workbench 1, a long working groove is formed on the workbench 1, the limiting mechanism is arranged on the workbench 1 and comprises a limiting seat 27, a motor three 28 and a second lead screw, the limiting seat 27 is fixed on the workbench 1, one end of the second lead screw is connected with the motor three 28, the other end of the second lead screw is rotatably arranged on a positioning seat 14 through a bearing second and a bearing seat second, the second lead screw comprises a rod body second, the rod body second is provided with two threads, one half of the rod body second is provided with a forward thread, the other half of the rod body second is provided with a reverse thread, the forward thread is connected with a nut third, the reverse thread is connected with a nut fourth, the nut third is fixed with a sliding block third 31, the nut fourth is fixed with a sliding block fourth 32, the limiting seat 27 is also fixed with two sliding rods parallel to the second lead screw, the sliding rods are respectively arranged on two sides of the second screw rod, the third sliding block 31 is arranged between the sliding rods in a sliding mode, the fourth sliding block 32 is arranged between the sliding rods in a sliding mode, the first limiting block 29 is fixed on the third sliding block 31, and the second limiting block 30 is fixed on the fourth sliding block 32.

The base is arranged below the workbench 1, the three cylinders I3 are fixed below the base, the base is provided with a rotating mechanism capable of rotating the workbench 1 horizontally, the rotating mechanism comprises a motor I2, the motor I2 is fixed on the base, an output shaft of the motor I2 is vertically upward and is fixed with a reinforcing plate, and the reinforcing plate is fixed with the workbench 1.

And a seventh air cylinder 43 is arranged below the two ends of the workbench 1. The cylinder seven 43 plays a role of balancing the workbench 1 during operation.

The worktable 1 is sequentially provided with a clamping mechanism, a hoisting mechanism, a positioning mechanism and a driving mechanism along the direction of the working groove from the limiting seat 27.

As shown in fig. 7, the clamping mechanism includes a fixing seat, a cylinder six 22 is fixed on the fixing seat, the cylinder six 22 is a double-head cylinder having a first piston rod and a second piston rod, the first piston rod of the cylinder six 22 is opposite to the orientation of the second piston rod, a first mounting frame 23 and a second mounting frame 24 are further fixed on the fixing seat, a first clamping arm 25 is hinged on the first mounting frame 23, a second clamping arm 26 is hinged on the second mounting frame 24, the first clamping arm 25 and the second clamping arm 26 are both arc-shaped and are arranged oppositely, the first piston rod of the cylinder six 22 is hinged to the lower end of the first clamping arm 25, and the second piston rod of the cylinder six 22 is hinged to the lower. In this embodiment, the first clamping arm 25 is provided with a first elongated hole, the second clamping arm 26 is provided with a second elongated hole, the first piston rod of the cylinder six 22 is fixed with a second fixed column, the second fixed column is slidably disposed in the second elongated hole, the second piston rod of the cylinder six 22 is fixed with a third fixed column, and the third fixed column is slidably disposed in the second elongated hole. Specifically, the piston rod of the cylinder six 22 is pushed outwards to enable the first clamping arm 25 and the second clamping arm 26 to rotate inwards, so that the water tank can be tightly clamped.

The upper end of the first clamping arm 25 is fixed with a first gasket, and the upper end of the second clamping arm 26 is fixed with a second gasket. The first gasket and the second gasket can enable the first clamping arm 25 and the second clamping arm 26 to better clamp the water tank.

As shown in fig. 5, the hoisting mechanism includes two sets of hoisting components, each hoisting component includes a third cylinder 9, a fixed frame 10, and a lifting plate 11, the third cylinder 9 is fixed in the working groove, a piston rod of the third cylinder 9 is vertically upward and fixed with the lifting plate 11, the fixed frame 10 is fixed on the workbench 1 and has two vertical sliding grooves, two ends of the lifting plate 11 are slidably disposed in the sliding grooves, two clamping bars 12 are symmetrically disposed on the lifting plate 11, and the lifting plate 11 is provided with a structure capable of adjusting the angle swing between the clamping bars 12. Specifically, a piston rod of the third air cylinder 9 pushes upwards to drive the lifting plate 11 to move upwards, and the lifting plate 11 moves upwards to drive the water tank to move upwards.

The swing structure comprises two five cylinders 13, the two five cylinders 13 are symmetrically fixed on the lower surface of the lifting plate 11, two through holes are formed in the lifting plate 11, piston rods of the five cylinders 13 vertically penetrate out of the through holes upwards, one ends of the clamping strips 12 are hinged in the through holes and can swing up and down, the clamping strips 12 are provided with first long strip holes, the piston rods of the five cylinders 13 are provided with first fixed columns, and the first fixed columns are arranged in the first long strip holes in a sliding mode. Specifically speaking, the piston rods of the two cylinders five 13 move upwards, so that the included angle between the clamping strips 12 can be reduced, and the water tank can be tightly clamped by reducing the included angle between the clamping strips 12.

As shown in fig. 8, the positioning mechanism includes a positioning seat 14, a cylinder four 15, a motor two 16, a first lead screw and a positioning plate 17, the positioning seat 14 is fixed on the worktable 1, the positioning seat 14 is provided with a positioning hole, the cylinder four 15 is fixed in the positioning hole, a piston rod of the cylinder four 15 is vertically upward, the positioning seat 14 is further vertically provided with four sliding shafts, the positioning plate 17 is slidably sleeved on the sliding shafts, one end of the first lead screw is connected with the motor two 16, the other end of the first lead screw is rotatably arranged on the positioning plate 17 with a bearing seat one through a bearing one, the first lead screw includes a first rod body, the first rod body is provided with two threads, one half of the first rod body is provided with a forward thread, the other half of the first rod body is provided with a reverse thread, the forward thread is connected with a first nut, the reverse thread is connected with a second nut, the first, two sliding strips parallel to the first screw rod are further fixed on the positioning plate 17, the sliding strips are respectively arranged on two sides of the first screw rod, the first sliding block 18 is arranged between the sliding strips in a sliding mode, the second sliding block 20 is arranged between the sliding strips in a sliding mode, the first clamping block 19 is fixed on the first sliding block 18, and the second clamping block 21 is fixed on the second sliding block 20. Because the first screw rod is provided with two threads, namely a forward thread and a reverse thread, when the second motor 16 rotates, the first sliding block 18 and the second sliding block 20 are close to or far away from each other at the same time, and when the lifting mechanism lifts the water tank to a certain height, the water tank is positioned by closing the first sliding block 18 and the second sliding block 20.

The tops of the first clamping block 19 and the second clamping block 21 are arranged oppositely, and the upper half parts of the opposite surfaces are inclined surfaces. Adopt the inclined plane structure can be better to support by columniform water tank.

As shown in fig. 4, the driving mechanism includes a support 4, a second cylinder 5 and a push plate 6, the support 4 is fixed on the workbench 1, the second cylinder 5 is fixed on the support 4, a piston rod of the second cylinder 5 faces the working groove direction and is fixed with the push plate 6, two parallel sliding strips 7 are further fixed on the support 4, sliding blocks 8 are slidably arranged on the sliding strips 7, and the sliding blocks 8 are fixed with the push plate 6. Specifically speaking, the support 4 is fixed on the workbench 1 through a bolt, if the length of the batch of water tanks is too large as compared with the length of the last batch of water tanks, the position of the support 4 on the workbench 1 is adjusted through dismounting, if the length of the batch of water tanks is smaller as compared with the length of the last batch of water tanks, the support 4 does not need to be dismounted, the piston rod of the second air cylinder 5 pushes outwards to drive the push plate 6 to move towards the direction of the limiting mechanism, and when the water tanks move to the limiting mechanism, the second air cylinder 5 stops working.

The punching mechanism is further arranged above the workbench 1 and comprises a rack 33, the rack 33 is arranged above the workbench, the rack 33 is shaped like a Chinese character 'Jiong', a first electric drill 34 and a second electric drill 35 are arranged on the rack 33, a moving structure capable of driving the first electric drill 34 and the second electric drill 35 to move left and right is arranged on the rack 33, and a lifting structure capable of driving the first electric drill 34 and the second electric drill 35 to move up and down is arranged on the rack 33. Particularly speaking is fixed back at the water tank, the removal structure drives electric drill 34 and two 35 horizontal migration location of electric drill, horizontal localization finishes the back, start through elevation structure with electric drill 34 and two 35 downstream of electric drill and start electric drill 34 and two 35 of electric drill and punch the water tank, once punch the back that finishes, elevation structure drives electric drill 34 and two 35 rebound of electric drill, restart removal structure horizontal adjustment distance, restart elevating system after the adjustment finishes, operate more than relapseing, punch the surface of water tank, this hole is used for installing evacuated collector tube.

The lifting structure comprises a first oil cylinder 36 and a second oil cylinder 37, a cylinder body of the first oil cylinder 36 is fixed on a fifth sliding block 38, a piston rod of the first oil cylinder 36 vertically faces downwards and is fixed with a first mounting seat 39, a first electric drill 34 is fixed on the first mounting seat 39, a drill bit of the first electric drill 34 vertically faces downwards, a cylinder body of the second oil cylinder 37 is fixed on a sixth sliding block 40, a piston rod of the second oil cylinder 37 vertically faces downwards and is fixed with a second mounting seat 41, a second electric drill 35 is fixed on the second mounting seat 41, and a drill bit of the second electric drill 35 vertically faces downwards. A piston rod of the first oil cylinder 36 moves downwards to drive the fifth sliding block 38 to move downwards, and the fifth sliding block 38 moves downwards to drive the first electric drill 34 to move downwards; the piston rod of the second oil cylinder 37 moves downwards to drive the sliding block six 40 to move downwards, and the sliding block six 40 moves downwards to drive the second electric drill 35 to move downwards.

The moving structure comprises a third screw rod, one end of the screw rod is connected with a motor four 42 capable of rotating the third screw rod, the third screw rod is horizontally rotated and arranged on the rack 33, one half of the rod body of the third screw rod is provided with a forward thread, the other half of the rod body is provided with a reverse thread, a nut five is sleeved on the forward thread of the third screw rod, a slider five 38 is fixed on the nut five, a nut six is sleeved on the reverse thread of the third screw rod, and a slider six 40 is fixed on the nut six. The third screw rod is provided with a forward thread and a reverse thread, the motor IV 42 rotates the nut V and the nut VI to be close to or far away from each other, the oil cylinder I36 is arranged at one end of the rack 33 when the motor IV starts to work, and the oil cylinder II 37 is arranged at the other end of the rack 33.

And a first infrared distance meter is fixed on two sides of the rack 33 and aims at a drill bit of the first electric drill 34, a second infrared distance meter is fixed on the top of the rack 33, and a measuring end of the second infrared distance meter is vertically downward. The precision of the distance from top to bottom to left and right is guaranteed by the aid of the first infrared distance meter and the second infrared distance meter, and punching quality is improved.

The working principle of the limiting mechanism is as follows: the second screw rod is provided with two threads, namely a forward thread and a reverse thread, and the first limiting block 29 and the second limiting block 30 can be close to or far away from each other by rotating the third motor 28; when the water tank cleaning device starts to work, the first limiting block 29 and the second limiting block 30 are close to each other, and the distance between the first limiting block and the second limiting block is smaller than the outer diameter of the water tank and used for preventing the water tank from being separated; when the work of the invention is finished, the first limiting block 29 and the second limiting block 30 are far away from each other, and the distance between the two is larger than the outer diameter of the water tank, so that the material can be discharged; the invention has the advantage of good limiting effect.

The working principle of the invention is as follows: firstly, pushing a water tank placed on the equipment through a second air cylinder 5 until a first limit plate and a second limit plate stop, and stopping the second air cylinder 5; then starting a third air cylinder 9 to lift the water tank to a reasonable position; secondly, starting a cylinder IV 15 and a motor II 16 for positioning, then starting a cylinder VI 22 to clamp and fix the water tank, and punching the water tank by using an electric drill I34 and an electric drill II 35; finally, the first air cylinder 3 is started after the workbench 1 is rotated by ninety degrees through the first motor 2, so that the base is inclined, and the water tank can be discharged after the base is inclined; the invention has the advantages of high punching precision and high working efficiency.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. A limiting mechanism for manufacturing a water tank of a solar water heater comprises a workbench, wherein a long-strip-shaped working groove is formed in the workbench, and the limiting mechanism is characterized in that the limiting mechanism is arranged on the workbench and comprises a limiting seat, a motor III and a second screw rod, the limiting seat is fixed on the workbench, one end of the second screw rod is connected with the motor III, the other end of the second screw rod is rotatably arranged on the limiting seat through a bearing II and a bearing seat II, the second screw rod comprises a rod body II, the rod body II is provided with two threads, one half of the rod body II is provided with a forward thread, the other half of the rod body II is provided with a reverse thread, the forward thread is in threaded connection with the nut III, the reverse thread is in threaded connection with the nut IV, the nut III is fixedly provided with a slide block III, the nut IV is fixedly provided with a slide block IV, the limiting seat is also fixedly provided with two slide bars parallel to the second screw rod, the three sliding blocks are arranged between the sliding rods in a sliding mode, the four sliding blocks are arranged between the sliding rods in a sliding mode, a first limiting block is fixed on the three sliding blocks, a second limiting block is fixed on the four sliding blocks, a base is arranged below the workbench, at least three first air cylinders are fixed below the base, a rotating mechanism capable of horizontally rotating the workbench is arranged on the base and comprises a first motor, the first motor is fixed on the base, a reinforcing plate is vertically upwards fixed on an output shaft of the first motor and fixed with the base, the reinforcing plate is fixed with the workbench, a clamping mechanism, a lifting mechanism and a positioning mechanism are sequentially arranged on the workbench from the limiting base along the direction of a working groove, the clamping mechanism comprises a fixed seat, a sixth air cylinder is fixed on the fixed seat and is a double-head air cylinder with the first piston rod and the second piston rod, the first piston rod of the sixth air cylinder is opposite to the second piston rod, the lifting mechanism comprises a plurality of groups of lifting components, each lifting component comprises a third cylinder, a fixed frame and a lifting plate, the third cylinder is fixed in a working groove, the piston rod of the third cylinder is vertically upwards and fixed with the lifting plate, the fixed frame is fixed on a workbench and provided with two vertical chutes, two ends of the lifting plate are slidably arranged in the chutes, the lifting plate is symmetrically provided with two clamping strips, the lifting plate is provided with a swinging structure capable of adjusting the angle between the clamping strips, and the swinging structure comprises two fifth cylinders, the two cylinders five are symmetrically fixed on the lower surface of the lifting plate, two through holes are formed in the lifting plate, piston rods of the cylinders five vertically penetrate through the through holes upwards, one ends of the clamping strips are hinged in the through holes and can swing up and down, the clamping strips are provided with strip holes I, fixed columns I are fixed on the piston rods of the cylinders five and are arranged in the strip holes I in a sliding mode, the positioning mechanism comprises positioning seats, cylinder four, a motor II, a first screw rod and positioning plates, the positioning seats are fixed on the workbench, positioning holes are formed in the positioning seats, the cylinders four are fixed in the positioning holes, the piston rods of the cylinders four are vertically upwards, a plurality of sliding shafts are vertically arranged on the positioning seats, the positioning plates are sleeved on the sliding shafts in a sliding mode, one ends of the first screw rods are connected with the motor II, and the other ends of the first screw rods are rotatably arranged on the positioning plates through, the first screw rod comprises a first rod body, the first rod body is provided with two threads, one half of the first rod body is provided with a forward thread, the other half of the first rod body is provided with a reverse thread, the forward thread is connected with a first nut, the reverse thread is connected with a second nut, the first nut is fixedly provided with a first sliding block, the second nut is fixedly provided with a second sliding block, two sliding strips parallel to the first screw rod are further fixedly arranged on the positioning plate, the sliding strips are respectively arranged on two sides of the first screw rod, the first sliding block is slidably arranged between the sliding strips, the second sliding block is slidably arranged between the sliding strips, the first sliding block is fixedly provided with a first clamping block, the second sliding block is fixedly provided with a second clamping block, a punching mechanism is further arranged above the workbench and comprises a rack, the rack is arranged above and is in a shape like the Chinese character 'Jiong', the rack is provided with a first electric drill and a second electric drill, and the rack is provided with a moving structure capable of driving the first electric, the rack is provided with a lifting structure which can drive the first electric drill and the second electric drill to move up and down.