Welding device for machining steel lining polytetrafluoroethylene storage tank

Abstract

The utility model discloses a welding device for machining a steel lining polytetrafluoroethylene storage tank, and relates to the technical field of storage tank welding. The ball cylinder comprises a ball cylinder base and a supporting arm, a plurality of semicircular grooves are formed in the top of the ball cylinder base, balls are rotatably connected to the inner walls of the semicircular grooves, two stop blocks are slidably connected to the inner walls of the semicircular grooves, and a fixing assembly is arranged on the front face of the ball cylinder base; the fixing assembly comprises a first fixing block, a first fixing groove is formed in the first fixing block, and the first fixing groove is slidably connected with a fixing clamp. By arranging the first connecting block, the welding head is extruded when the PTFE storage tank enters the device, the welding head drives the telescopic rod to move and compresses the spring at the same time, the welding head is pushed in the opposite direction due to the fact that the spring is compressed to generate elastic force, and the welding head is tightly attached to the outer surface of the PTFE storage tank. Therefore, the welding between the PTFE storage tanks is firmer, and the welding quality is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of storage tank welding, in particular to a welding device for processing steel-lined polytetrafluoroethylene storage tanks. Background Art

[0002] Steel lined PTFE storage tanks use the excellent anti-corrosion properties of polytetrafluoroethylene to resist the erosion of strong acids, strong alkalis and other highly corrosive substances. Steel lined PTFE storage tanks are suitable for different strong acids (including aqua regia), strong alkalis, highly corrosive substances and organic matter except liquid alkali metals and sodium naphthalene solutions. They have high resistance to positive and negative pressures and high temperature resistance.

[0003] Since steel-lined PTFE storage tanks are produced individually, welding machines are needed to weld the steel-lined PTFE storage tanks one by one to form several PTFE storage tanks into a single unit. Traditional welding processing of steel-lined PTFE storage tanks mostly requires workers to enter the steel-lined PTFE storage tanks, hold the welding machine, and weld the interfaces. The welding process takes a long time, and there are no fixing devices between the PTFE storage tanks, which makes the PTFE storage tanks unstable during welding, thereby affecting the quality of welding, and then affecting the processing quality of the steel-lined PTFE storage tanks. Therefore, we propose a welding device for processing steel-lined PTFE storage tanks. Utility Model Content

[0004] The purpose of the utility model is to provide a welding device for processing steel-lined polytetrafluoroethylene storage tanks. By setting a connecting block, specifically, the polytetrafluoroethylene storage tank enters the device to squeeze the welding head, and the welding head drives the telescopic rod to move. At the same time, the welding head compresses the spring. Since the spring is compressed, the elastic force is generated to push the welding head in the opposite direction, so that the welding head is close to the outer surface of the polytetrafluoroethylene storage tank, thereby making the welding between the polytetrafluoroethylene storage tanks more firm, improving the welding quality, and solving the problem of loose welding in the prior art.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a welding device for processing steel-lined polytetrafluoroethylene storage tanks, comprising a ball roller base and a support arm, a plurality of semicircular grooves are provided on the top of the ball roller base, a plurality of balls are rotatably connected to the inner walls of the semicircular grooves, a stopper is slidably connected to the inner walls of the semicircular grooves, and the number of the stoppers is two. A fixing assembly is provided on the front of the ball roller base, and by providing two stoppers, the steel-lined polytetrafluoroethylene storage tanks entering the device can be limited, so that the butt joint of the steel-lined polytetrafluoroethylene storage tanks is directly below the welding head;

[0007] The fixing assembly includes a fixing block 1, a fixing groove 1 is provided inside the fixing block 1, a fixing clamp is slidably connected to the fixing groove 1, a rack 2 is fixedly connected to the bottom of the fixing clamp, a circular groove 1 is provided inside the fixing clamp, a rotating shaft 2 is fixedly connected to the inner wall of the circular groove 1, a sliding groove is provided on the inner wall of the fixing groove 1, and the number of the sliding grooves is two, a plurality of rotating grooves 1 are provided on the inner surface of the fixing clamp, a plurality of rotating grooves 1 are fixedly connected to the inner walls of the rotating grooves 1, a small roller is rotatably connected to the outer surface of the rotating shaft 3, and the small roller contacts with the inner wall of the rotating groove 1 by setting the fixing clamp, specifically, the fixing block 1 drives the rotating shaft 1 to drive the gear to move the rack 2, and then the fixing clamp as a whole moves toward the polyfluoro storage tank to fix the polyfluoro storage tank, thereby ensuring the stability of the polyfluoro storage tank docking during welding and improving the efficiency of welding work.

[0008] Furthermore, there are two support arms, and a connecting block 1 is fixedly connected to the left side of the support arm on the right side, a placement groove is opened inside the connecting block 1, a shell 1 is fixedly connected to the inner wall of the placement groove, a telescopic cylinder is fixedly connected to the top of the inner wall of the shell 1, a telescopic rod is slidably connected to the bottom of the telescopic cylinder, a spring is sleeved on the outer surface of the telescopic cylinder, a welding head is fixedly connected to the bottom of the telescopic rod, and a motor 2 is fixedly connected to the right side of the fixed block 1. By setting the connecting block 1, the welding head will be squeezed when the polytetrafluoroethylene storage tank enters the device, and the welding head drives the telescopic rod to move. At the same time, the welding head compresses the spring. The spring is compressed and generates elastic force to push the welding head in the opposite direction, so that the welding head is close to the outer surface of the polytetrafluoroethylene storage tank, thereby making the welding between the polytetrafluoroethylene storage tanks more firm and improving the welding quality.

[0009] Furthermore, the output end of motor 2 is fixedly connected to rotating shaft 1, the outer surface of rotating shaft 1 is fixedly connected to a gear, the gear is meshingly connected to rack 2, the bottom of the gear is meshingly connected to rack 1, the front of the support arm is fixedly connected to motor 1, the output end of motor 1 is fixedly connected to a large belt pulley, a large rotating groove is opened inside the support arm, and a large roller is rotatably connected to the inner wall of the large rotating groove. By setting the large roller, the steel-lined polytetrafluoroethylene storage tank can be driven to rotate, so that the welding at the joint of the steel-lined polytetrafluoroethylene storage tank is uniform.

[0010] Furthermore, a rotating shaft four is fixedly connected to the inner wall of the large roller, and the left and right sides of the rotating shaft four are rotatably connected to connecting blocks two, and the number of connecting blocks two is two. By setting the connection between connecting block two and rotating shaft four, the large roller can rotate at a fixed position.

[0011] Furthermore, a rotation groove 2 is opened inside the two connecting blocks 2, and the inner walls of the two rotation grooves 2 are rotatably connected to the outer surface of the rotating shaft 4. A small belt pulley is fixedly connected to the right side of the rotating shaft 4, and a belt is transmission-connected to the outer surface of the large belt pulley. By setting the belt, the movement of the large belt pulley and the small belt pulley is in the same direction.

[0012] Furthermore, the left and right sides of the rotating shaft 2 are both slidably connected to the slide groove, the bottom of the spring is fixedly connected to the top of the welding head, the top of the spring is fixedly connected to the top of the inner wall of the shell, the front of the rack 1 is fixedly connected to the stopper, the outer surface of the rack 1 is slidably connected to the inner wall of the semicircular groove, the large belt pulley is connected to the small belt pulley through a belt, the left side of the small belt pulley is rotatably connected to the connecting block 2 located on the right side, and by setting the rack 1, the stopper can move in the horizontal direction.

[0013] The utility model has the following beneficial effects:

[0014] 1. The utility model sets a connecting block 1, specifically, the PTFE storage tank enters the device to squeeze the welding head, the welding head drives the telescopic rod to move, and the welding head compresses the spring at the same time. The elastic force generated by the compression of the spring pushes the welding head in the opposite direction, so that the welding head is close to the outer surface of the PTFE storage tank, thereby making the welding between the PTFE storage tanks more firm and improving the welding quality.

[0015] 2. The utility model sets a fixing clamp, specifically a fixing block, which drives a rotating shaft and drives a gear to move a rack, thereby moving the fixing clamp as a whole toward the PTFE storage tank to fix the PTFE storage tank, thereby ensuring the stability of the PTFE storage tank docking during the welding process and improving the efficiency of the welding work.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings required for describing the embodiment will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the fixing component of the utility model;

[0020] Figure 3 For this utility model Figure 2A is a schematic diagram of the enlarged structure of the middle part;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the large roller of the utility model;

[0022] Figure 5 This is a structural schematic diagram of a fixing block of the utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the fixing clamp of the utility model.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1. Ball roller base; 10. Ball; 11. Block; 2. Support arm; 20. Motor 1; 201. Large belt pulley; 21. Connecting block 1; 22. Shell 1; 220. Telescopic cylinder; 221. Telescopic rod; 222. Welding head; 223. Spring; 23. Belt; 24. Connecting block 2; 25. Large roller; 251. Small belt pulley; 252. Shaft 4; 3. Fixing assembly; 30. Fixing block 1; 301. Rack 1; 302. Shaft 1; 303. Gear; 31. Fixing clamp; 310. Shaft 2; 311. Shaft 3; 312. Small roller; 32. Motor 2; 33. Rack 2. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-6 As shown, the utility model is a welding device for processing steel-lined polytetrafluoroethylene storage tanks, comprising a ball roller base 1 and a support arm 2. A plurality of semicircular grooves are provided on the top of the ball roller base 1. Balls 10 are rotatably connected to the inner walls of the plurality of semicircular grooves. Stoppers 11 are slidably connected to the inner walls of the semicircular grooves. There are two stoppers 11. A fixing component 3 is provided on the front of the ball roller base 1.

[0028] The fixing assembly 3 includes a fixing block 30, a fixing groove 1 is provided inside the fixing block 30, a fixing clamp 31 is slidably connected to the fixing groove 1, a rack 2 33 is fixedly connected to the bottom of the fixing clamp 31, a circular groove 1 is provided inside the fixing clamp 31, a rotating shaft 2 310 is fixedly connected to the inner wall of the circular groove 1, a sliding groove is provided on the inner wall of the fixing groove 1, and the number of the sliding grooves is two, a plurality of rotating grooves 1 are provided on the inner surface of the fixing clamp 31, a plurality of rotating grooves 1 are fixedly connected to the inner walls of the rotating grooves 1, a small roller 312 is rotatably connected to the outer surface of the rotating shaft 311, and the small roller 312 contacts the inner wall of the rotating groove 1. By setting the fixing clamp 31, specifically, the fixing block 30 drives the rotating shaft 1 302 to drive the gear 303, so that the rack 2 33 moves, and then the fixing clamp 31 as a whole moves toward the polyfluoro storage tank to fix the polyfluoro storage tank, thereby ensuring the stability of the polyfluoro storage tank docking during the welding process and improving the efficiency of the welding work.

[0029] There are two support arms 2, and a connecting block 21 is fixedly connected to the left side of the right support arm 2. A placement groove is opened inside the connecting block 21, and a shell 22 is fixedly connected to the inner wall of the placement groove. A telescopic cylinder 220 is fixedly connected to the top of the inner wall of the shell 22, and a telescopic rod 221 is slidably connected to the bottom of the telescopic cylinder 220. A spring 223 is sleeved on the outer surface of the telescopic cylinder 220, and a welding head 222 is fixedly connected to the bottom of the telescopic rod 221. A motor 232 is fixedly connected to the right side of the fixed block 30. By setting the connecting block 21, the welding head 222 will be squeezed when the polytetrafluoroethylene storage tank enters the device, and the welding head 222 drives the telescopic rod 221 to move. At the same time, the welding head 222 compresses the spring 223. The spring 223 is compressed to generate elastic force to push the welding head 222 in the opposite direction, so that the welding head 222 is close to the outer surface of the polytetrafluoroethylene storage tank, thereby making the welding between the polytetrafluoroethylene storage tanks more firm and improving the welding quality.

[0030] The output end of motor 2 32 is fixedly connected to shaft 1 302, the outer surface of shaft 1 302 is fixedly connected to gear 303, gear 303 is meshingly connected to rack 2 33, the bottom of gear 303 is meshingly connected to rack 1 301, the front of support arm 2 is fixedly connected to motor 1 20, the output end of motor 1 20 is fixedly connected to a large belt pulley 201, a large rotating groove is opened inside the support arm 2, and a large roller 25 is rotatably connected to the inner wall of the large rotating groove.

[0031] The inner wall of the large roller 25 is fixedly connected with a rotating shaft 4 252, and the left and right sides of the rotating shaft 4 252 are both rotatably connected with connecting blocks 24, and the number of the connecting blocks 24 is two.

[0032] The two connecting blocks 24 are both provided with rotating grooves 2, and the inner walls of the two rotating grooves 2 are rotatably connected to the outer surface of the rotating shaft 4 252. A small belt pulley 251 is fixedly connected to the right side of the rotating shaft 4 252, and a belt 23 is transmission-connected to the outer surface of the large belt pulley 201.

[0033] The left and right sides of the rotating shaft 2 310 are both slidably connected to the slide groove, the bottom of the spring 223 is fixedly connected to the top of the welding head 222, the top of the spring 223 is fixedly connected to the top of the inner wall of the shell 1 22, the front of the rack 1 301 is fixedly connected to the stopper 11, the outer surface of the rack 1 301 is slidably connected to the inner wall of the semicircular groove, the large belt pulley 201 is transmission-connected to the small belt pulley 251 through the belt 23, and the left side of the small belt pulley 251 is rotationally connected to the connecting block 2 24 located on the right side.

[0034] A specific application of this embodiment is: the staff first starts the motor 2 32 to drive the gear 303 to rotate clockwise, pushes the stopper 11 to the middle of the ball cylinder base 1, and at the same time the fixing clamp 31 will move in the opposite direction and retreat until it contacts the fixing block 1 30, then turn off the motor 2 32, then the PTFE storage tank can be placed on the ball cylinder base 1 from the left and right sides of the device respectively, so that the PTFE storage tank stops at the center of the ball cylinder base 1 when it hits the stopper 11, then the PTFE storage tank will squeeze the welding head 222 to make the welding head 222 move upward, and the welding head 222 drives the telescopic rod 221 to slide upward in the telescopic cylinder 220, and at the same time the upward movement of the welding head 222 will compress the spring 223, and the spring 223 is compressed to generate elastic force to push the welding head 222 in the opposite direction, which makes the welding head 222 close to the joint of the PTFE storage tank, then start the motor 223. Machine 2 32 makes motor 2 32 drive gear 303 to rotate counterclockwise, and moves block 11 back into the ball roller base 1 from the center of ball roller base 1. At the same time, fixing clamp 31 moves in the opposite direction to block 11 to fix the PTFE storage tank. Small roller 312 will contact the outer surface of the PTFE storage tank. After the fixing is completed, motor 2 32 is turned off and motor 1 20 is started to rotate large belt pulley 201. Large belt pulley 201 drives belt 23 to move small belt pulley 251 in the same direction. Small belt pulley 251 drives rotating shaft 4 252 to rotate large roller 25. Finally, large roller 25 drives PTFE storage tank to rotate, so that PTFE storage tank rotates on ball roller base 1. At this time, welding head 222 can weld the joint of PTFE storage tank 360 degrees. The rotation of PTFE storage tank will drive small roller 312 to rotate around rotating shaft 3 311.

[0035] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A welding device for processing a steel-lined polytetrafluoroethylene storage tank, comprising a ball roller base (1) and a support arm (2), characterized in that: The top of the ball roller base (1) is provided with a plurality of semicircular grooves, the inner walls of the plurality of semicircular grooves are rotatably connected with balls (10), the inner walls of the semicircular grooves are slidably connected with blocks (11), the number of the blocks (11) is two, and a fixing component (3) is provided on the front of the ball roller base (1); The fixing assembly (3) comprises a fixing block (30), a fixing groove (1) is provided inside the fixing block (30), a fixing clamp (31) is slidably connected to the fixing groove (1), a rack (33) is fixedly connected to the bottom of the fixing clamp (31), a circular groove (1) is provided inside the fixing clamp (31), a rotating shaft (310) is fixedly connected to the inner wall of the circular groove (1), a sliding groove is provided on the inner wall of the fixing groove (1), and the number of the sliding grooves is two, a plurality of rotating grooves (1) are provided on the inner surface of the fixing clamp (31), a plurality of rotating grooves (1) are fixedly connected to the inner walls of the rotating grooves (1), a small roller (312) is rotatably connected to the outer surface of the rotating shaft (311), and the small roller (312) contacts the inner wall of the rotating groove (1).

2. A welding device for processing steel-lined polytetrafluoroethylene storage tanks according to claim 1, characterized in that: The number of the support arms (2) is two, and the left side of the support arm (2) on the right side is fixedly connected with a connection block (21), a placement groove is provided inside the connection block (21), a shell (22) is fixedly connected to the inner wall of the placement groove, a telescopic cylinder (220) is fixedly connected to the top of the inner wall of the shell (22), a telescopic rod (221) is slidably connected to the bottom of the telescopic cylinder (220), a spring (223) is sleeved on the outer surface of the telescopic cylinder (220), a welding head (222) is fixedly connected to the bottom of the telescopic rod (221), and a motor (32) is fixedly connected to the right side of the fixed block (30).

3. A welding device for processing steel-lined polytetrafluoroethylene storage tanks according to claim 2, characterized in that: The output end of the second motor (32) is fixedly connected to a rotating shaft (302), the outer surface of the rotating shaft (302) is fixedly connected to a gear (303), the gear (303) is meshingly connected to the second rack (33), the bottom of the gear (303) is meshingly connected to the rack (301), the front of the support arm (2) is fixedly connected to the first motor (20), the output end of the first motor (20) is fixedly connected to a large belt pulley (201), a large rotating groove is opened inside the support arm (2), and a large roller (25) is rotatably connected to the inner wall of the large rotating groove.

4. A welding device for processing steel-lined polytetrafluoroethylene storage tanks according to claim 3, characterized in that: The inner wall of the large roller (25) is fixedly connected to a rotating shaft four (252), and the left and right sides of the rotating shaft four (252) are both rotatably connected to connecting blocks two (24), and the number of connecting blocks two (24) is two.

5. A welding device for processing steel-lined polytetrafluoroethylene storage tanks according to claim 4, characterized in that: The two connecting blocks (24) are each provided with a rotating groove (2), the inner walls of the two rotating grooves (2) are rotatably connected to the outer surface of the rotating shaft (252), a small belt pulley (251) is fixedly connected to the right side of the rotating shaft (252), and a belt (23) is transmission-connected to the outer surface of the large belt pulley (201).

6. A welding device for processing steel-lined polytetrafluoroethylene storage tanks according to claim 2, characterized in that: The left and right sides of the second rotating shaft (310) are both slidably connected to the slide groove, the bottom of the spring (223) is fixedly connected to the top of the welding head (222), and the top of the spring (223) is fixedly connected to the top of the inner wall of the shell (22).

7. A welding device for processing steel-lined polytetrafluoroethylene storage tanks according to claim 3, characterized in that: The front face of the rack 1 (301) is fixedly connected to the stopper (11), and the outer surface of the rack 1 (301) is slidably connected to the inner wall of the semicircular groove.

8. A welding device for processing steel-lined polytetrafluoroethylene storage tanks according to claim 5, characterized in that: The large belt pulley (201) is transmission-connected to the small belt pulley (251) via a belt (23), and the left side of the small belt pulley (251) is rotationally connected to a second connection block (24) located on the right side.

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