Fixing device for welding of cold storage heat preservation door

Abstract

The invention relates to the technical field of welding fixing devices, in particular to a fixing device for welding a cold storage heat preservation door, which comprises a bottom plate and two fixing plates, the two fixing plates are fixedly connected to the two ends of the upper surface of the bottom plate respectively, a sliding rod is fixedly connected between the two fixing plates, and a mounting box is slidably connected to the sliding rod; a welding gun is transversely limited through the mounting box and a sliding rod, the welding gun is longitudinally limited through a clamping block and a clamping hole, the height from the welding gun to a welding seam is kept consistent during welding, and the welded welding seam is kept straight and does not incline; and during welding, the impact head is continuously driven to impact a welding seam which is just welded, welding slag on the surface of a crator is crushed and cleaned, the situation that the welding slag is rapidly condensed and difficult to clean is avoided, cavities are prevented from being contained in the welding seam, the welding effect is guaranteed, and the welding strength is high.

Description

Technical Field

[0001] The invention relates to the technical field of welding fixing devices, and in particular to a fixing device for welding a cold storage insulation door. Background Art

[0002] In order to ensure the strength and sealing of the insulated door of the cold storage, the door is usually welded to the embedded parts of the cold storage. Workers need to hold a welding gun when welding the insulated door.

[0003] However, when holding the welding gun, the worker cannot ensure that the distance from the welding gun to the weld remains consistent, and the worker cannot ensure that his hands do not shake during welding, which will cause the weld to deviate and affect the welding effect. If the welding slag cannot be cleaned in time during welding, the welding slag will quickly condense and become difficult to clean, which will greatly affect the strength and effect of the welding and reduce the sealing and strength of the cold storage. Summary of the invention

[0004] The purpose of the present invention is to solve the following shortcomings in the prior art: however, when holding a welding gun, the worker cannot ensure that the distance from the welding gun to the weld remains consistent, and the worker cannot ensure that his hands do not shake during welding, which will cause the weld to deviate and affect the welding effect. If the welding slag cannot be cleaned in time during welding, the welding slag will quickly condense and become difficult to clean, which greatly affects the strength and effect of the welding and reduces the sealing and strength of the cold storage. A fixing device for welding a cold storage insulation door is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A fixing device for welding a cold storage insulation door comprises a bottom plate and a fixing plate, wherein two fixing plates are fixedly connected to two ends of an upper surface of the bottom plate respectively, a sliding rod is fixedly connected between the two fixing plates, and a mounting box is slidably connected to the sliding rod; The installation box is provided with a slag removal mechanism, and the slag removal mechanism includes a rotating rod, a first gear, a limiting rod, a limiting block, and a first rack plate, the rotating rod is rotatably connected to the inner side wall of the installation box, the first gear is fixedly connected to the outer surface of the rotating rod, the limiting rod is fixedly connected to the inner side wall of the installation box, the limiting block is slidably connected to the limiting rod, the first rack plate is fixedly connected to the side wall of the limiting block, a sliding groove is opened on the bottom wall of the installation box, the first rack plate is slidably connected in the sliding groove, and the first rack plate is meshed with the first gear; A purification mechanism is also provided in the installation box, and the purification mechanism includes an adsorption chamber and an air bag. The adsorption chamber is fixedly connected to the inner wall of the installation box, and a plurality of holes are provided in the adsorption chamber and the bottom wall of the installation box. The air bag is fixedly connected between the first rack plate and the installation box.

[0006] Preferably, the slag removal mechanism also includes an impact head, a second rack plate and a second gear, the impact head is fixedly connected to the lower end surface of the first rack plate, the second rack plate is fixedly connected between the two fixed plates, a sliding opening is opened on the side wall of the mounting box, the second rack plate is slidably connected in the sliding opening, the second gear is fixedly connected to the end of the rotating rod away from the first gear, and the second gear is meshingly connected to the second rack plate.

[0007] Preferably, circular clamping openings are provided on the top wall and the bottom wall of the installation box, a fixing rod is fixedly connected to the inner side wall of the installation box, a clamping rod is slidably connected to the side wall of the installation box away from the fixing rod, two clamping blocks are fixedly connected to the ends of the fixing rod and the clamping rod close to each other, and a pull plate is fixedly connected to the end of the clamping rod away from the clamping block.

[0008] Preferably, two air cylinders are fixedly connected to the two ends of the upper surface of the base plate, a piston plate is slidably connected to the inner wall of the air cylinder, the lower end surface of the piston plate is rotatably connected to a hollow rod, the hollow rod is slidably connected to one of the side walls of the air cylinder, the hollow rod is slidably connected to the base plate, and the lower end surface of the hollow rod is fixedly connected to a suction cup.

[0009] Preferably, a desorption port is provided on the side wall of the gas cylinder, a sealing plate is fixedly connected to the side wall of the piston plate, and the sealing plate is slidably connected to the desorption port.

[0010] Preferably, three support columns are installed in a circular array at one end of the piston plate away from the hollow rod, and the end of the support column away from the piston plate is fixedly connected to a connecting plate, and the upper end surface of the connecting plate is fixedly connected to a connecting rod, and the connecting rod is slidably connected to the air cylinder.

[0011] Preferably, a shift plate is fixedly connected to the upper end surface of one of the connecting rods, a shift block is fixedly connected to the side wall of one end of the installation box away from the pull plate, and a belt is sleeved between the two connecting rods.

[0012] Preferably, an air inlet pipe is fixedly connected between the airbag and the adsorption chamber, and an air outlet pipe is fixedly connected to the airbag, and both the air inlet pipe and the air outlet pipe are provided with a one-way valve.

[0013] Preferably, a torsion spring is fixedly connected between the piston plate and the air cylinder, a return spring is fixedly connected between the connecting plate and the air cylinder, an impact spring is fixedly connected between the limit block and the installation box, and a fixing spring is fixedly connected between the pull plate and the installation box.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The welding gun is limited laterally by the mounting box and the slide bar, and is limited longitudinally by the clamp block and the clamp hole. The height from the welding gun to the weld is kept consistent during welding, and the welded weld remains straight without being skewed, with better welding effect and higher strength.

[0015] Through the cooperation of the second gear and the second rack plate, the impact head is continuously driven to impact the weld that has just been welded during welding, so as to break up and clean the welding slag on the surface of the weld scar, avoid the welding slag from condensing quickly and being difficult to clean, prevent the weld from containing voids, and ensure the strength of the welding.

[0016] The air bag is continuously squeezed and stretched by the second rack plate, so that harmful gases generated by the welding gun are sucked into the adsorption chamber, and are filtered and purified by various adsorbents such as activated carbon in the adsorption chamber to reduce harm to the workers.

[0017] The welding gun can be quickly fixed and released through the cooperation of structures such as the pull plate and the clamp block, and the bottom can be quickly fixed to the insulation door through the cooperation of structures such as the air cylinder, the suction cup and the shift block, and the fixation can be automatically released after welding. The operation is very simple and quick, which improves the efficiency of welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the limit rod structure of a fixing device for welding a cold storage insulation door proposed by the present invention; Figure 2 This is a schematic diagram of the impact head structure of a fixing device for welding a cold storage insulation door proposed by the present invention; Figure 3 A schematic diagram of the suction cup structure of a fixing device for welding a cold storage insulation door proposed by the present invention; Figure 4 This is a schematic diagram of the sealing plate structure of a fixing device for welding a cold storage insulation door proposed by the present invention; Figure 5 This is a schematic diagram of a pull plate structure of a fixing device for welding a cold storage insulation door proposed by the present invention; Figure 6 This is a schematic diagram of the adsorption chamber structure of a fixing device for welding a cold storage insulation door proposed by the present invention; Figure 7 The present invention is a schematic diagram of the airbag structure of a fixing device for welding a cold storage insulation door.

[0019] In the figure: 1 bottom plate, 2 fixed plate, 3 sliding rod, 4 mounting box, 5 rotating rod, 6 first gear, 7 limiting rod, 8 limiting block, 9 first rack plate, 10 impact head, 11 adsorption chamber, 12 air bag, 13 second rack plate, 14 second gear, 15 fixed rod, 16 clamping rod, 17 clamping block, 18 air cylinder, 19 piston plate, 20 hollow rod, 21 suction cup, 22 sealing plate, 23 supporting column, 24 connecting plate, 25 connecting rod, 26 shifting plate, 27 shifting block, 28 belt, 29 air inlet pipe, 30 air outlet pipe, 31 torsion spring, 32 return spring, 33 impact spring, 34 fixed spring, 35 pulling plate. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Reference Figure 1-Figure 7 A fixing device for welding a cold storage insulation door comprises a bottom plate 1 and a fixing plate 2. The two fixing plates 2 are respectively fixedly connected to the two ends of the upper surface of the bottom plate 1. A sliding rod 3 is fixedly connected between the two fixing plates 2. An installation box 4 is slidably connected to the sliding rod 3. A portion of the installation box 4 protrudes out of the bottom plate 1, and the bottom plate 1 will not block the welding gun from welding.

[0022] A slag removal mechanism is provided in the installation box 4, and the slag removal mechanism includes a rotating rod 5, a first gear 6, a limiting rod 7, a limiting block 8, and a first rack plate 9. The rotating rod 5 is rotatably connected to the inner wall of the installation box 4, the first gear 6 is fixedly connected to the outer surface of the rotating rod 5, the limiting rod 7 is fixedly connected to the inner wall of the installation box 4 in a vertical direction, the limiting block 8 is slidably connected to the limiting rod 7 in a vertical direction, and an impact spring 33 is fixedly connected between the limiting block 8 and the installation box 4, the first rack plate 9 is fixedly connected to the side wall of the limiting block 8, a sliding groove is provided on the bottom wall of the installation box 4, the first rack plate 9 is slidably connected in the sliding groove, the first rack plate 9 is meshed with the first gear 6, and the first gear 6 has only partial teeth.

[0023] A purification mechanism is also provided in the installation box 4, and the purification mechanism includes an adsorption chamber 11 and an air bag 12. The adsorption chamber 11 is fixedly connected to the inner wall of the installation box 4. The adsorption chamber 11 is provided with a variety of adsorbents such as activated carbon, which can filter and purify harmful gases generated during welding. The adsorption chamber 11 and the bottom wall of the installation box 4 are both provided with a plurality of holes. The air bag 12 is fixedly connected between the first rack plate 9 and the installation box 4. An air inlet pipe 29 is fixedly connected between the air bag 12 and the adsorption chamber 11. The air bag 12 is fixedly connected to an air outlet pipe 30. Both the air inlet pipe 29 and the air outlet pipe 30 are provided with one-way valves. The flow direction of the one-way valve in the air inlet pipe 29 is from the adsorption chamber 11 to the air bag 12, and the flow direction of the one-way valve in the air outlet pipe 30 is from the air bag 12 to the outside.

[0024] The slag removal mechanism also includes an impact head 10, a second rack plate 13 and a second gear 14. The impact head 10 is fixedly connected to the lower end surface of the first rack plate 9, the second rack plate 13 is fixedly connected between the two fixed plates 2, a sliding opening is opened on the side wall of the mounting box 4, the second rack plate 13 is slidably connected in the sliding opening, the second gear 14 is fixedly connected to the end of the rotating rod 5 away from the first gear 6, and the second gear 14 is meshed with the second rack plate 13.

[0025] Circular clamping openings are provided on the top and bottom walls of the installation box 4, and the welding gun can be put in through the clamping openings. A fixing rod 15 is fixedly connected to the inner wall of the installation box 4, and a clamping rod 16 is slidably connected to the side wall of the installation box 4 away from the fixing rod 15. The fixing rod 15 and the clamping rod 16 are respectively fixedly connected to two clamping blocks 17 at the ends close to each other, and a pull plate 35 is fixedly connected to the end of the clamping rod 16 away from the clamping block 17. A fixing spring 34 is fixedly connected between the pull plate 35 and the installation box 4, and the fixing spring 34 and the clamping block 17 can fix the welding gun.

[0026] Two gas cylinders 18 are fixedly connected to the two ends of the upper surface of the bottom plate 1, and a piston plate 19 is sealingly and slidably connected to the inner side wall of the gas cylinder 18. A torsion spring 31 is fixedly connected between the piston plate 19 and the gas cylinder 18. The piston plate 19 is also rotatably connected to the gas cylinder 18. The lower end face of the piston plate 19 is rotatably connected to a hollow rod 20, and the hollow rod 20 is slidably connected to one of the side walls of the gas cylinder 18. The hollow rod 20 and the gas cylinder 18 are not sealed. The hollow rod 20 is slidably connected to the bottom plate 1, and the lower end face of the hollow rod 20 is fixedly connected to a suction cup 21. A desorption port is provided on the side wall of the gas cylinder 18, and a sealing plate 22 is fixedly connected to the side wall of the piston plate 19. The sealing plate 22 is sealingly and slidably connected to the desorption port. When the sealing plate 22 moves vertically on the desorption port, the sealing plate 22 always covers the desorption port. When the sealing plate 22 rotates, it is misaligned with the desorption port and no longer seals the desorption port.

[0027] Three support columns 23 are installed in a circular array at one end of the piston plate 19 away from the hollow rod 20, and a connecting plate 24 is fixedly connected to the end of the support column 23 away from the piston plate 19. A return spring 32 is fixedly connected between the connecting plate 24 and the air cylinder 18, and a connecting rod 25 is fixedly connected to the upper end surface of the connecting plate 24. The connecting rod 25 is sealingly and slidingly connected to the air cylinder 18, and the connecting rod 25 and the air cylinder 18 are also rotatably connected. A shift plate 26 is fixedly connected to the upper end surface of one of the connecting rods 25, and a shift block 27 is fixedly connected to the side wall of the end of the installation box 4 away from the pull plate 35. The shift block 27 is wider. When the connecting rod 25 drives the shift plate 26 to move in the vertical direction, the shift block 27 can still maintain contact with the shift plate 26, and a belt 28 is sleeved between the two connecting rods 25.

[0028] In the present invention, when in use, the pull plate 35 is first pulled outward, and the pull plate 35 drives the clamping block 17 to move outward through the clamping rod 16, and compresses the fixing spring 34, so that the welding gun is inserted into the clamping hole at the upper end of the installation box 4 and is inserted out from the clamping hole at the lower end. The pull plate 35 is released. Under the elastic force of the fixing spring 34, the pull plate 35 drives the clamping block 17 to reset through the clamping rod 16, and the welding gun is fixed on the installation box 4, so that the welding gun is limited and fixed, so that the height of the welding gun to the welding seam is consistent, and the welding effect is better. Then, the bottom plate 1 is adjusted to a suitable position, the clamping hole is aligned with the welding seam to be welded, and the sliding The rod 3 is kept parallel to the weld, and then the bottom plate 1 is attached to the insulation door and pressed downward. The suction cup 21 drives the piston plate 19 to move toward the air cylinder 18 through the hollow rod 20. The air between the piston plate 19 and the air cylinder 18 slips out from the gap between the suction cup 21 and the insulation door along the hollow rod 20, and the air cylinder 18 forms a negative pressure. The suction cup 21 tightly sucks the insulation door under the action of pressure. When welding, it is only necessary to move the welding gun from the air cylinder 18 without the paddle plate 26 to the air cylinder 18 with the paddle plate 26. Under the limitation of the slide bar 3, the welded weld remains straight without deviation, and the welding effect is better.

[0029] When the welding gun is driven by the mounting box 4 for welding, as the mounting box 4 moves, under the action of the second rack plate 13, the second gear 14 is driven to rotate counterclockwise, and the second gear 14 drives the first gear 6 to rotate through the rotating rod 5. The first gear 6 rotates counterclockwise to drive the first rack plate 9 to move up and compress the impact spring 33. The first gear 6 has only some teeth. When the first gear 6 rotates to a place without teeth, under the elastic force of the impact spring 33, the first rack plate 9 drives the impact head 10 to reset. The impact head 10 impacts the weld that has just been welded, and the welding slag on the surface of the weld is crushed and cleaned to avoid the welding slag condensing and being difficult to clean, and the voids inside that affect the welding strength.

[0030] When the first rack plate 9 moves upward, it squeezes the airbag 12, and a positive pressure is present in the airbag 12. Under the action of pressure, the one-way valve in the outlet pipe 30 opens, and the one-way valve in the inlet pipe 29 closes, and the gas in the airbag 12 is discharged to the outside along the outlet pipe 30. When the first rack plate 9 is reset, the airbag 12 is stretched, and a negative pressure is present in the airbag 12. Under the action of pressure, the one-way valve in the outlet pipe 30 closes, and the one-way valve in the inlet pipe 29 opens, and the gas in the adsorption chamber 11 enters the airbag 12 along the inlet pipe 29, and a negative pressure is present in the adsorption chamber 11. The harmful gas generated during welding is sucked into the adsorption chamber 11, and is filtered and purified by the activated carbon lamp adsorbent in the adsorption chamber 11, thereby reducing harm to the staff.

[0031] When welding to the bottom, the installation box 4 drives the shift block 27 to push the shift plate 26, and the shift plate 26 drives the connecting plate 24 to rotate through the connecting rod 25, and one of the connecting rods 25 drives the other connecting rod 25 to rotate through the belt 28, and the connecting plates 24 in the two gas cylinders 18 drive the piston plate 19 to rotate through the support column 23, and rotate the torsion spring 31, so that the sealing plate 22 no longer seals the desorption port, and the outside gas enters the gas cylinder 18 along the desorption port. The air pressure in the gas cylinder 18 returns to normal, and the suction cup 21 no longer has an adsorption force on the thermal insulation door, and the installation box 4 is dialed back to the original point. Under the elastic force of the torsion spring 31, the sealing plate 22 is reset, and the desorption port is sealed again. At this time, the bottom plate 1 can be easily removed, and the bottom plate 1 is pressed downward to fix it to the thermal insulation door and repeat the fixing operation, and the welding is continued close to the welded position until the welding is completed, and the pulling plate 35 is pulled outward to take out the welding gun. It is very simple and quick to fix and disassemble the welding gun during welding, which improves the welding efficiency.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fixing device for welding a cold storage thermal insulation door, comprising a bottom plate (1) and a fixing plate (2), characterized in that: The two fixing plates (2) are respectively fixedly connected to the two ends of the upper surface of the bottom plate (1); a sliding rod (3) is fixedly connected between the two fixing plates (2); and a mounting box (4) is slidably connected to the sliding rod (3); The installation box (4) is provided with a slag removal mechanism, which comprises a rotating rod (5), a first gear (6), a limiting rod (7), a limiting block (8), and a first rack plate (9); the rotating rod (5) is rotatably connected to the inner side wall of the installation box (4); the first gear (6) is fixedly connected to the outer surface of the rotating rod (5); the limiting rod (7) is fixedly connected to the inner side wall of the installation box (4); the limiting block (8) is slidably connected to the limiting rod (7); the first rack plate (9) is fixedly connected to the side wall of the limiting block (8); a sliding groove is provided on the bottom wall of the installation box (4); the first rack plate (9) is slidably connected in the sliding groove; and the first rack plate (9) is meshingly connected to the first gear (6); A purification mechanism is also provided in the installation box (4), the purification mechanism comprising an adsorption chamber (11) and an air bag (12), the adsorption chamber (11) being fixedly connected to the inner wall of the installation box (4), the adsorption chamber (11) and the bottom wall of the installation box (4) both being provided with a plurality of holes, the air bag (12) being fixedly connected between the first rack plate (9) and the installation box (4).

2. A fixing device for welding a cold storage thermal insulation door according to claim 1, characterized in that: The slag removal mechanism further comprises an impact head (10), a second rack plate (13) and a second gear (14); the impact head (10) is fixedly connected to the lower end surface of the first rack plate (9); the second rack plate (13) is fixedly connected between the two fixed plates (2); a sliding opening is provided on the side wall of the mounting box (4); the second rack plate (13) is slidably connected in the sliding opening; the second gear (14) is fixedly connected to an end of the rotating rod (5) away from the first gear (6); and the second gear (14) is meshingly connected to the second rack plate (13).

3. A fixing device for welding a cold storage thermal insulation door according to claim 2, characterized in that: The top wall and the bottom wall of the installation box (4) are both provided with circular clamping openings, a fixing rod (15) is fixedly connected to the inner side wall of the installation box (4), a clamping rod (16) is slidably connected to the side wall of the installation box (4) at one end away from the fixing rod (15), two clamping blocks (17) are fixedly connected to the ends of the fixing rod (15) and the clamping rod (16) close to each other, and a pull plate (35) is fixedly connected to the end of the clamping rod (16) away from the clamping block (17).

4. A fixing device for welding a cold storage thermal insulation door according to claim 3, characterized in that: Two gas cylinders (18) are fixedly connected to the two ends of the upper surface of the bottom plate (1), and a piston plate (19) is slidably connected to the inner side wall of the gas cylinder (18). The lower end surface of the piston plate (19) is rotatably connected to a hollow rod (20). The hollow rod (20) is slidably connected to one side wall of the gas cylinder (18), and the hollow rod (20) is slidably connected to the bottom plate (1). The lower end surface of the hollow rod (20) is fixedly connected to a suction cup (21).

5. A fixing device for welding a cold storage thermal insulation door according to claim 4, characterized in that: A desorption port is provided on the side wall of the gas cylinder (18), a sealing plate (22) is fixedly connected to the side wall of the piston plate (19), and the sealing plate (22) is slidably connected to the desorption port.

6. A fixing device for welding a cold storage thermal insulation door according to claim 4, characterized in that: Three support columns (23) are installed in a circular array at one end of the piston plate (19) away from the hollow rod (20); a connecting plate (24) is fixedly connected to one end of the support column (23) away from the piston plate (19); a connecting rod (25) is fixedly connected to the upper end surface of the connecting plate (24); and the connecting rod (25) is slidably connected to the air cylinder (18).

7. A fixing device for welding a cold storage thermal insulation door according to claim 6, characterized in that: A shift plate (26) is fixedly connected to the upper end surface of one of the connecting rods (25), a shift block (27) is fixedly connected to the side wall of one end of the installation box (4) away from the pull plate (35), and a belt (28) is sleeved between the two connecting rods (25).

8. A fixing device for welding a cold storage thermal insulation door according to claim 1, characterized in that: An air inlet pipe (29) is fixedly connected between the air bag (12) and the adsorption chamber (11), and an air outlet pipe (30) is fixedly connected to the air bag (12). Both the air inlet pipe (29) and the air outlet pipe (30) are provided with a one-way valve.

9. A fixing device for welding a cold storage thermal insulation door according to claim 6, characterized in that: A torsion spring (31) is fixedly connected between the piston plate (19) and the gas cylinder (18), a return spring (32) is fixedly connected between the connecting plate (24) and the gas cylinder (18), an impact spring (33) is fixedly connected between the limit block (8) and the installation box (4), and a fixing spring (34) is fixedly connected between the pull plate (35) and the installation box (4).

Images