Welding fixing device for air compressor production

Abstract

The invention belongs to the technical field of air compressor production, and discloses a welding fixing device for air compressor production, which comprises a mounting seat and a fixing mechanism arranged on the mounting seat, according to the scheme, the pipe clamping assembly and the hemisphere clamping assembly are ingeniously combined, synchronous and automatic adjustment of the positions of the hemisphere parts on the two sides of the gas storage tank tubular part is achieved, the alignment precision of the gas storage tank tubular part and the tubular part is ensured, meanwhile, the gas storage tank tubular part alignment device is compatible with tubular parts with different diameters and lengths, and the problem that in the prior art, alignment efficiency is low is effectively solved; through application of the pneumatic assembly, automatic adsorption and rotation of the hemispherical part can be achieved, the feeding process is greatly simplified, the pneumatic assembly can further drive combination and fixation of the hemispherical part and the tubular part, the welding process is more efficient, after welding operation is completed, the device can automatically execute discharging of finished gas storage tanks and resetting of the fixing device, and the welding efficiency is improved. The automation level of the device is greatly improved, and the limitation of insufficient automation degree in the prior art is effectively broken through.

Description

Technical Field

[0001] The invention belongs to the technical field of air compressor production, and in particular relates to a welding fixing device for air compressor production. Background Art

[0002] Air compressors are essential equipment for various factories, road construction, mining and construction industries. They are mainly used to provide a steady supply of compressed air with a certain pressure. The air tank is one of the important components of the air source system of the air compressor. The two ends of the air tank are hemispherical structures and the middle is a tubular structure. The air tank needs to be welded during the production of the air compressor. The existing welding fixtures for air compressor production have some problems in use: 1. The position of the hemispherical part of the gas tank cannot be automatically adjusted to align with the tubular part of the gas tank; 2. The position adjustment of the hemispherical parts on both sides of the gas tank cannot be performed at the same time, which affects the processing efficiency; 3. After welding is completed, it is impossible to unload the finished gas tank and reset the fixture, and the degree of automation is low.

[0003] Therefore, a welding fixture for air compressor production that can automatically and synchronously adjust the positions of the hemispherical parts of the gas storage tanks on both sides and can automatically unload materials is needed to solve these problems. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a welding and fixing device for air compressor production. The technical solution cleverly combines the pipe clamping assembly and the hemispherical clamping assembly, realizes the synchronous and automatic adjustment of the positions of the hemispherical parts on both sides of the tubular part of the gas tank, ensures the alignment accuracy with the tubular part, and is compatible with tubular parts of different diameters and lengths, effectively solving the problem of low alignment efficiency in the prior art. Through the application of pneumatic components, automatic adsorption and rotation of the hemispherical parts can be achieved, which greatly simplifies the loading process. The pneumatic components can also drive the combination and fixation of the hemispherical parts and the tubular parts, making the welding process more efficient. After the welding operation is completed, the device can automatically perform the unloading of the finished gas tank and the resetting of the fixing device, which greatly improves the automation level of the device and effectively breaks through the limitations of the insufficient automation level of the prior art.

[0005] The technical solution adopted by the present invention is as follows: a welding fixture for air compressor production, comprising a mounting seat, and also comprising a fixing mechanism arranged on the mounting seat, wherein the fixing mechanism comprises a pipe clamping assembly arranged on the mounting seat, a hemispherical clamping assembly arranged on the mounting seat, and a pneumatic assembly arranged on the hemispherical clamping assembly; The pipe clamping assembly comprises a mounting frame 1, a hydraulic press, an upper arc plate, an upper plate of a lower arc plate and a lower plate of a lower arc plate, wherein the mounting frame 1 is fixedly arranged on a mounting seat, the hydraulic press is fixedly arranged on the top inner wall of the mounting frame 1, the upper arc plate is fixedly arranged on the output end of the hydraulic press, the lower plate of the lower arc plate is fixedly arranged on the mounting seat, one end of the upper plate of the lower arc plate is hingedly arranged on one end of the lower plate of the lower arc plate, and an arc groove is opened in the lower plate of the lower arc plate; The hemispherical clamping assembly includes a slider, a guide column, a sleeve 1, a spring 2, a mounting frame 2, a feeding platform 2, a synchronization rod and a synchronization block. The feeding platform 2 is fixedly arranged on the mounting seat and symmetrically distributed on both sides of the upper arc plate. The slider is slidably arranged on the mounting seat and symmetrically distributed on both sides of the feeding platform 2. The guide column is fixedly arranged on the top wall of the slider in an array manner. The sleeve 1 is slidably sleeved on the guide column. The mounting frame 2 is fixedly arranged on the top wall of the sleeve 1. One end of the spring 2 is fixedly arranged on the slider, and the other end of the spring 2 is fixedly arranged on the mounting frame 2. The synchronization block is symmetrically fixedly arranged on the outer walls of both sides of the mounting frame 2. A rectangular groove is opened inside the synchronization block. The end of the synchronization rod is slidably and rotatably arranged in the rectangular groove, and the middle section of the synchronization rod is movably inserted in the arc groove. The pneumatic assembly comprises a screw rod, and the screw rod is horizontally rotatably arranged inside the slider.

[0006] As a preferred technical solution of this scheme, a clamping unit is provided inside the second mounting frame, and the clamping unit includes a central arc plate, an L-shaped rack, a toothed slider, a connecting rod, a clamping box, a motor, a circular block, a gear, a transmission rod, a threaded cylinder, a guide plate and a second connecting rod. The toothed slider is slidably arranged on the inner side wall of the second mounting frame, one end of the first connecting rod is coaxially fixed on one side outer wall of the toothed slider, the circular block is slidably arranged on the inner side wall of the second mounting frame away from the toothed slider, the second connecting rod is fixed on one side of the toothed slider, the clamping box is fixedly arranged on one end of the connecting rod away from the toothed slider, and the motor is fixedly installed on The top outer wall of the clamping box, the upper end of the transmission rod is vertically rotated and arranged on the top inner wall of the clamping box, the transmission rod is coaxially connected with the output end of the motor, the gear is fixedly sleeved on the transmission rod, the threaded tube is slidably sleeved on the transmission rod, the inner wall of the threaded tube is provided with a strip groove, the surface of the transmission rod is provided with a strip protrusion, the strip protrusion is slidably arranged in the strip groove, the guide plate is fixedly arranged on the inner side wall of the clamping box, the L-shaped rack is axially symmetrical about the axis of the transmission rod and is slidably arranged on the side wall of the clamping box, the L-shaped rack is meshingly connected with the gear, and the center arc plate is fixedly arranged at the end of the L-shaped rack away from the gear.

[0007] As a preferred technical solution of the present scheme, an adsorption unit is provided inside the clamping box, and the adsorption unit includes a hose 1, a sleeve 2 and a suction cup. The sleeve 2 is fixedly arranged at one end of the threaded cylinder, and the suction cup is slidably arranged in the sleeve 2. An air guide hole 1 is opened in the connecting rod 1, one end of the hose 1 is passed through and fixed on the sleeve 2, and the other end of the hose 1 is fixed on the inner wall of the clamping box, and the hose 1 is through-connected with the air guide hole 1.

[0008] As a preferred technical solution of the present scheme, the pneumatic component also includes an air pump, a second hose, an impeller cover, an impeller, an air duct one, and an air duct two. The air pump is fixedly mounted on a mounting seat, the impeller cover is fixedly mounted on the mounting seat, the second hose has three inlets and outlets, one inlet and outlet of the second hose is connected to the air inlet of the air pump, and the other two inlets and outlets of the second hose are fixedly mounted on the side walls of two mounting frames two. The impeller is rotatably arranged in the impeller cover, the impeller is coaxially fixedly connected to the screw, the first air duct is fixedly mounted on the outer wall of the impeller cover, one end of the second air duct is fixedly mounted on the air outlet of the air pump, and the other end of the second air duct is fixedly mounted on the outer wall of the impeller cover.

[0009] As a preferred technical solution of the present scheme, a pneumatic drive unit is provided inside the mounting frame 2, and the pneumatic drive unit includes a block 1, a block 2, a piston block and a spur rack, a piston cavity is provided in the mounting frame 2, and an air guide hole 2 is provided in the mounting frame 2, one end of the air guide hole 2 is connected with the hose 2, and the other end of the air guide hole 2 is connected with the piston cavity, an air guide hole 3 is provided on the mounting frame 2, and the air guide hole 3 is connected with the piston cavity, the block 1 is slidably arranged in the piston cavity, and the piston block is movably arranged in the piston cavity, the block 2 is fixedly arranged on the upper wall of the piston block, and an air guide hole 4 is through-opened in the piston block, one end of the air guide hole 4 is connected with the piston cavity, and the other end is connected with the air guide hole 1, and the end of the piston block away from the block 2 is rotatably connected to the toothed slider, the spur rack is fixedly arranged on the inner side wall of the mounting frame 2, and the spur rack is meshed with the toothed slider.

[0010] As a preferred technical solution of the present invention, a material unloading unit is fixedly provided at one end of the upper arc plate, and the material unloading unit includes a slider 1 and a spring 1. The slider 1 is symmetrically slidably arranged in the upper arc plate, and the two ends of the spring 1 are respectively fixed on the side walls of the two sliders 1 close to each other.

[0011] As a preferred technical solution of this scheme, the pipe clamping assembly also includes a loading platform and a unloading box, the loading platform is fixedly arranged on the mounting seat, and the unloading box is fixedly arranged on the mounting seat.

[0012] After adopting the above structure, the beneficial effects of the present invention are as follows: 1. This device adopts innovative designs of tube clamping components and hemispherical clamping components to realize automatic loading of tubular parts and hemispherical parts. Through the linkage of these two components, this device can simultaneously and automatically adjust the clamping height of the hemispherical parts on both sides while clamping the tubular parts, ensuring accurate alignment when merging the tubular parts and the hemispherical parts. Thanks to the efficient pneumatic components, this device can not only firmly adsorb the hemispherical parts, but also flip them during the position adjustment process, while driving the combination and fixation of the hemispherical parts and the tubular parts. After the welding operation is completed, the tube clamping component can automatically perform the unloading operation, and the reversal of the motor and the air pump ensures the automatic resetting of the device. In general, this device realizes the full process automation of loading, fixing, unloading and resetting, which significantly improves the automation degree and production efficiency of the welding operation; 2. The arc design of the upper and lower arc plates, as well as the clip-on combination between them, can not only accurately adjust the position of the tubular parts to ensure that they are centered, but also firmly clamp tubular parts of different diameters. This design cleverly combines functionality and flexibility, making the positioning and fixation of tubular parts more accurate and reliable. At the same time, the synergy of the clip-on design and the unloading unit cleverly realizes the automatic unloading of finished welding products, greatly simplifies the operation process and improves work efficiency; 3. The cooperation of the synchronization rod and the synchronization block can realize the linkage of the tube clamping assembly and the hemispherical clamping assembly, so that the second mounting frame can change its position according to the change of the diameter of the tubular part, ensuring the precise alignment of the hemispherical part and the tubular part. At the same time, the second spring can stabilize the position of the second mounting frame and help the second mounting frame to reset; 4. By using the gear, L-shaped rack and centering arc plate, the position of the hemispherical part can be adjusted to make it centered, ensuring that the adsorption component can adsorb the center position of the hemispherical part; 5. Through the clever coordination of multiple airways and cavities, the negative pressure generated by the air pump is fully utilized. After the hemispherical piece is adsorbed by the negative pressure, the negative pressure can also be used to flip the hemispherical piece so as to facilitate the subsequent combination of the hemispherical piece and the tubular piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present solution and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention.

[0014] Figure 1 This is a schematic diagram of the overall structure of a welding fixture for air compressor production according to the present invention; Figure 2 It is a schematic diagram of the connection structure between the hydraulic press and the upper arc plate in the present invention; Figure 3 for Figure 2 A magnified view of the local structure at point A in the middle; Figure 4 It is a schematic diagram of the connection structure of the hose 1 and the mounting frame 2 in the present invention; Figure 5 It is a schematic diagram of the connection structure of the upper arc plate and the upper plate of the lower arc plate when clamping the tubular member of the gas storage tank in the present invention; Figure 6 It is a schematic diagram of the connection structure between the slider 1 and the spring 1 in the present invention; Figure 7 It is a schematic diagram of the connection structure between the mounting frame 1 and the hydraulic press in the present invention; Figure 8 for Figure 7 A magnified view of the local structure at B in the middle; Fig. 9 It is a schematic diagram of the connection structure between the mounting frame 2 and the rack in the present invention; Fig.10 It is a schematic diagram of the connection structure of the synchronization rod and the synchronization block in the present invention; Fig.11 for Fig.10 A magnified view of the local structure at C in the middle; Fig.12 for Fig.10 A magnified view of the local structure at D in the middle; Fig.13 for Fig.10 A magnified view of the local structure at E in the middle; Fig.14 It is a schematic diagram of the connection structure between the second air guide hole and the second hose in the present invention.

[0015] In the accompanying drawings: 1. mounting base; 2. fixing mechanism; 3. Pipe clamping assembly, 31. Mounting frame 1, 32. Hydraulic press, 33. Upper arc plate, 34. Lower arc plate upper plate, 35. Loading table 1, 36. Unloading box, 37. Lower arc plate lower plate, 38. Arc groove, 39. Slider 1, 310. Spring 1; 4. Hemispherical clamping assembly, 41. Slider, 42. Guide column, 43. Sleeve 1, 44. Spring 2, 45. Mounting frame 2, 46. Loading table 2, 47. Centering arc plate, 48. L-shaped rack, 49. Toothed slider, 410. Connecting rod 1, 411. Clamping box, 412. Motor, 413. Round block, 414. Gear, 415. Transmission rod, 416. Threaded cylinder, 417. Strip groove, 418. Guide plate, 419. Hose 1, 420. Sleeve 2, 421. Suction cup, 422. Connecting rod 2, 423. Synchronous rod, 424. Synchronous block, 425. Air guide hole 1; 5. Pneumatic assembly, 51. Air pump, 52. Hose 2, 53. Impeller cover, 54. Screw, 55. Impeller, 56. Air guide pipe 1, 57. Air guide pipe 2, 58. Air guide hole 2, 59. Piston chamber, 510. Stopper 1, 511. Air guide hole 3, 512. Stopper 2, 513. Piston block, 514. Air guide hole 4, 515. Straight rack. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described 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; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0017] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0018] Embodiment 1, as Figure 1-Figure 7 As shown, a welding fixture for air compressor production includes a mounting seat 1, and also includes a fixing mechanism 2 arranged on the mounting seat 1, the fixing mechanism 2 includes a pipe clamping assembly 3 arranged on the mounting seat 1, a hemispherical clamping assembly 4 arranged on the mounting seat 1, and a pneumatic assembly 5 arranged on the hemispherical clamping assembly 4; The pipe clamping assembly 3 includes a mounting frame 31, a hydraulic press 32, an upper arc plate 33, a lower arc plate upper plate 34 and a lower arc plate lower plate 37. The mounting frame 31 is fixedly arranged on the mounting seat 1, the hydraulic press 32 is fixedly arranged on the top inner wall of the mounting frame 31, the upper arc plate 33 is fixedly arranged on the output end of the hydraulic press 32, the lower arc plate lower plate 37 is fixedly arranged on the mounting seat 1, one end of the lower arc plate upper plate 34 is hingedly arranged on one end of the lower arc plate lower plate 37, and an arc groove 38 is opened in the lower arc plate lower plate 37; The hemispherical clamping assembly 4 includes a slider 41, a guide column 42, a sleeve 1 43, a spring 2 44, a mounting frame 2 45, a loading platform 2 46, a synchronization rod 423 and a synchronization block 424. The loading platform 2 46 is fixedly arranged on the mounting seat 1 and symmetrically distributed on both sides of the upper arc plate 33. The slider 41 is slidably arranged on the mounting seat 1 and symmetrically distributed on both sides of the loading platform 2 46. The guide column 42 is fixedly arranged on the top wall of the slider 41 in an array manner. The sleeve 1 43 is slidably sleeved on the guide column 42. The mounting frame 2 45 is fixedly arranged on the top wall of the sleeve 1 43. One end of the spring 2 44 is fixedly arranged on the slider 41, and the other end of the spring 2 44 is fixedly arranged on the mounting frame 2 45. The synchronization block 424 is symmetrically fixedly arranged on the outer walls of both sides of the mounting frame 2 45. A rectangular groove is opened inside the synchronization block 424. The end of the synchronization rod 423 is slidably and rotatably arranged in the rectangular groove. The middle section of the synchronization rod 423 is movably inserted in the arc groove 38. The pneumatic assembly 5 includes a screw rod 54 , which is horizontally rotatably disposed inside the slider 41 .

[0019] Working process: place the tubular part of the gas storage tank on the upper plate 34 of the lower arc plate, start the hydraulic press 32, the hydraulic press 32 drives the upper arc plate 33 to move downward, the upper arc plate 33 is clamped in the notches on the upper plate 34 of the lower arc plate and the lower plate 37 of the lower arc plate, the tubular part is clamped in the center under the action of the upper arc plate 33 and the upper plate 34 of the lower arc plate, the upper arc plate 33 can also drive the synchronization rod 423 to move downward, the synchronization rod 423 drives the synchronization block 424 and then drives the mounting frame 2 45 to move downward during the downward movement, so that in the process of merging the hemispherical part and the tubular part of the gas storage tank, the axis of the tubular part is aligned with the sphere of the hemispherical part, and the rotation of the screw 54 can drive the slider 41 to move.

[0020] like Figure 1-Figure 14As shown, a clamping unit is provided inside the second mounting frame 45, and the clamping unit includes a central arc plate 47, an L-shaped rack 48, a toothed slider 49, a connecting rod 1 410, a clamping box 411, a motor 412, a circular block 413, a gear 414, a transmission rod 415, a threaded cylinder 416, a guide plate 418 and a second connecting rod 422, the toothed slider 49 is slidably arranged on the inner side wall of the second mounting frame 45, one end of the connecting rod 1 410 is coaxially fixed on one side outer wall of the toothed slider 49, the circular block 413 is slidably arranged on the inner side wall of the second mounting frame 45 away from the toothed slider 49, the second connecting rod 422 is fixedly arranged on one side of the toothed slider 49, the clamping box 411 is fixedly arranged on one end of the connecting rod 1 410 away from the toothed slider 49, and the motor 412 is fixedly installed on the clamping The top outer wall of the holding box 411, the upper end of the transmission rod 415 is vertically rotated and arranged on the top inner wall of the clamping box 411, the transmission rod 415 is coaxially connected with the output end of the motor 412, the gear 414 is fixedly sleeved on the transmission rod 415, the threaded tube 416 is slidably sleeved on the transmission rod 415, the inner wall of the threaded tube 416 is provided with a strip groove 417, the surface of the transmission rod 415 is provided with a strip protrusion, the strip protrusion is slidably arranged in the strip groove 417, the guide plate 418 is fixedly arranged on the inner wall of the clamping box 411, the L-shaped rack 48 is axially symmetrical about the axis of the transmission rod 415 and is slidably arranged on the side wall of the clamping box 411, the L-shaped rack 48 is meshed with the gear 414, and the center arc plate 47 is fixedly arranged on the end of the L-shaped rack 48 away from the gear 414.

[0021] Among them, an adsorption unit is provided inside the clamping box 411, and the adsorption unit includes a hose 419, a sleeve 420 and a suction cup 421. The sleeve 420 is fixed at one end of the threaded tube 416, and the suction cup 421 is slidably provided in the sleeve 420. An air guide hole 425 is opened in the connecting rod 410, one end of the hose 419 is passed through and fixed on the sleeve 420, and the other end of the hose 419 is fixed on the inner wall of the clamping box 411, and the hose 419 is connected with the air guide hole 425.

[0022] Working process: start the motor 412, the motor 412 rotates forward, the motor 412 drives the transmission rod 415 to rotate, the transmission rod 415 rotates to drive the gear 414, the gear 414 rotates to drive the L-shaped rack 48 to move, and then the paired centering arc plates 47 move toward each other to center the hemispherical part of the gas tank on the second loading platform 46, the rotation of the transmission rod 415 simultaneously drives the threaded cylinder 416 to rotate, the threaded cylinder 416 moves downward under the action of the strip-shaped protrusions on the surface of the transmission rod 415 and the guide plate 418, drives the second sleeve 420 and then drives the suction cup 421 to move downward, and the suction cup 421 contacts the upper surface of the hemispherical part; After welding is completed, the motor 412 is controlled to reverse, thereby driving the suction cup 421 to move upward, and the paired center arc plates 47 move back and forth to complete the reset.

[0023] Among them, the pneumatic component 5 also includes an air pump 51, a hose 52, an impeller cover 53, an impeller 55, an air duct 1 56, and an air duct 2 57. The air pump 51 is fixedly installed on the mounting base 1, the impeller cover 53 is fixedly installed on the mounting base 1, the hose 2 52 has three inlets and outlets, one inlet and outlet of the hose 2 52 is connected to the air inlet of the air pump 51, and the other two inlets and outlets of the hose 2 52 are fixedly installed on the side walls of the two mounting frames 2 45. The impeller 55 is rotatably arranged in the impeller cover 53, and the impeller 55 is coaxially fixedly connected with the screw 54. The air duct 1 56 is fixedly installed on the outer wall of the impeller cover 53, one end of the air duct 2 57 is fixedly installed on the air outlet of the air pump 51, and the other end of the air duct 2 57 is fixedly installed on the outer wall of the impeller cover 53.

[0024] The mounting frame 45 is provided with a pneumatic drive unit, which includes a stopper 510, a stopper 512, a piston block 513 and a spur rack 515. The mounting frame 45 is provided with a piston cavity 59. The mounting frame 45 is provided with a gas guide hole 58. One end of the gas guide hole 58 is connected to the hose 52. The other end of the gas guide hole 58 is connected to the piston cavity 59. The mounting frame 45 is provided with a gas guide hole 3 511. The gas guide hole 3 511 is connected to the piston cavity 59. The stopper 510 slides. It is arranged in the piston cavity 59, and the piston block 513 is movably arranged in the piston cavity 59. The second stopper 512 is fixedly arranged on the upper wall of the piston block 513. An air guide hole 4 514 is penetrated inside the piston block 513. One end of the air guide hole 4 514 is connected with the piston cavity 59, and the other end is connected with the air guide hole 1 425. The end of the piston block 513 away from the second stopper 512 is rotatably connected with the toothed slider 49, and the spur rack 515 is fixedly arranged on the inner wall of the second mounting frame 45, and the spur rack 515 is meshed with the toothed slider 49.

[0025] Working process: start the air pump 51, the air pump 51 rotates forward, the air pump 51 sucks air from the air inlet to generate negative pressure, and after being transmitted through the hose 2 52, the air guide hole 2 58, the piston chamber 59, the air guide hole 4 514, the air guide hole 1 425 and the hose 1 419, a negative pressure is generated in the sleeve 2 420, and then the suction cup 421 firmly adsorbs the hemispherical part. After adsorption, the negative pressure in the piston chamber 59 increases, and then the piston block 513 moves upward, and the piston block 513 drives the stopper 2 512 to move upward, and the stopper 2 512 will drive the stopper 1 510 to move upward, and then the air guide hole 3 511 will no longer be blocked, and the air can enter the piston chamber 59 from the air guide hole 3 511. The upward movement of the piston block 513 will also drive the toothed slider The block 49 moves upward. During the upward movement of the toothed slider 49, the teeth on the toothed slider 49 mesh with the teeth on the spur rack 515, thereby driving the toothed slider 49 to rotate 90 degrees. The movement of the toothed slider 49 drives the connecting rod 1 410, thereby driving the clamping box 411 to move synchronously, thereby driving the hemispherical piece to rotate 90 degrees around the connecting rod 1 410. The air outlet of the air pump 51 enters the impeller cover 53 through the air guide pipe 2 57, thereby driving the impeller 55 to rotate. The rotation of the impeller 55 drives the screw 54 to rotate. The rotation of the screw 54 drives the slider 41 to move toward the lower arc plate 37, thereby the hemispherical pieces on both sides will merge with the tubular piece, completing the fixation of the tubular piece and the hemispherical piece of the gas storage tank, so as to weld the gas storage tank; After welding is completed, the air pump 51 is controlled to reverse, the suction cup 421 no longer produces adsorption, and the clamping box 411 is reset under the action of gravity. The air pump 51 takes in air from the air outlet, thereby driving the impeller 55 to reverse, driving the screw 54 to reverse, and then driving the slider 41 away from the lower arc plate 37 to complete the reset. The motor 412 is controlled to reverse, thereby driving the suction cup 421 to move upward, and the paired center arc plates 47 move back and forth to complete the reset.

[0026] Among them, a material discharge unit is fixedly provided at one end of the upper arc plate 33, and the material discharge unit includes a slider 39 and a spring 310. The slider 39 is symmetrically slidably arranged in the upper arc plate 33, and the two ends of the spring 310 are fixedly arranged on the side walls of the two sliders 39 close to each other.

[0027] The tube clamping assembly 3 further includes a loading platform 35 and a unloading box 36 . The loading platform 35 is fixedly arranged on the mounting seat 1 , and the unloading box 36 is fixedly arranged on the mounting seat 1 .

[0028] When in use, the tubular part of the gas storage tank is moved from the loading platform 1 35 to the upper surface of the lower arc plate upper plate 34, and the hydraulic press 32 is started. The hydraulic press 32 drives the upper arc plate 33 to move downward, and the upper arc plate 33 is clamped at the notches on the lower arc plate upper plate 34 and the lower arc plate lower plate 37. The tubular part is clamped in the middle under the action of the upper arc plate 33 and the lower arc plate upper plate 34. The upper arc plate 33 can also drive the synchronization rod 423 to move downward. During the downward movement of the synchronization rod 423, the synchronization block 424 is driven to drive the mounting frame 2 45 to move downward, so that in the process of merging the hemispherical part and the tubular part of the gas storage tank, the axis of the tubular part is aligned with the spherical shape of the hemispherical part; Start the motor 412, the motor 412 rotates forward, the motor 412 drives the transmission rod 415 to rotate, the transmission rod 415 rotates and drives the gear 414 to rotate, the gear 414 rotates and drives the L-shaped rack 48 to move, and then the paired centering arc plates 47 move toward each other to center the hemispherical part of the gas storage tank on the second loading platform 46, the rotation of the transmission rod 415 drives the threaded cylinder 416 to rotate at the same time, the threaded cylinder 416 moves downward under the action of the strip-shaped protrusions on the surface of the transmission rod 415 and the guide plate 418, drives the second sleeve 420 and then drives the suction cup 421 to move downward, and the suction cup 421 contacts the upper surface of the hemispherical part; Start the air pump 51, the air pump 51 rotates forward, the air pump 51 sucks air from the air inlet to generate negative pressure, and after being transmitted through the hose 2 52, the air guide hole 2 58, the piston chamber 59, the air guide hole 4 514, the air guide hole 1 425 and the hose 1 419, a negative pressure is generated in the sleeve 2 420, and then the suction cup 421 firmly adsorbs the hemispherical part. After adsorption, the negative pressure in the piston chamber 59 increases, and then the piston block 513 moves upward, and the piston block 513 drives the stopper 2 512 to move upward, and the stopper 2 512 will drive the stopper 1 510 to move upward, and then the air guide hole 3 511 will no longer be blocked, and air can enter the piston chamber 59 from the air guide hole 3 511. The upward movement of the piston block 513 will also drive the toothed slider 49 The toothed slider 49 moves upward, and the teeth on the toothed slider 49 mesh with the teeth on the spur rack 515 during the upward movement, thereby driving the toothed slider 49 to rotate 90 degrees. The movement of the toothed slider 49 drives the connecting rod 1 410, thereby driving the clamping box 411 to move synchronously, thereby driving the hemispherical part to rotate 90 degrees around the connecting rod 1 410. The air outlet of the air pump 51 enters the impeller cover 53 through the air guide pipe 2 57, thereby driving the impeller 55 to rotate. The rotation of the impeller 55 drives the screw 54 to rotate. The rotation of the screw 54 drives the slider 41 to move toward the lower arc plate 37, and then the hemispherical parts on both sides will be merged with the tubular part, completing the fixation of the tubular part and the hemispherical part of the gas storage tank, so as to weld the gas storage tank; After welding is completed, the air pump 51 is controlled to reverse, the suction cup 421 no longer produces adsorption effect, and the clamping box 411 is reset under the action of gravity. The air pump 51 takes in air from the air outlet, thereby driving the impeller 55 to reverse, driving the screw 54 to reverse, and then driving the slider 41 to move away from the lower arc plate 37 to complete the reset, and the motor 412 is controlled to reverse, thereby driving the suction cup 421 to move upward, and the paired center arc plates 47 move back and forth to complete the reset, and the hydraulic press 32 is controlled to drive the upper arc plate 33 to move upward. During the upward movement of the upper arc plate 33, the slider 39 contacts one end of the lower arc plate upper plate 34 and then drives the lower arc plate upper plate 34 to rotate around its other end. The welded gas storage tank rolls from the lower arc plate upper plate 34 into the unloading box 36 to complete the unloading. After the upper arc plate 33 rises to a certain height, the slider 39 is separated from the lower arc plate upper plate 34, and the lower arc plate upper plate 34 is reset.

[0029] In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creatively designing without departing from the purpose of the invention, they should all fall within the scope of protection of the invention.

Claims

1. A welding fixture for air compressor production, comprising a mounting seat (1), characterized in that: It also comprises a fixing mechanism (2) arranged on the mounting seat (1), the fixing mechanism (2) comprising a pipe clamping assembly (3) arranged on the mounting seat (1), a hemispherical clamping assembly (4) arranged on the mounting seat (1), and a pneumatic assembly (5) arranged on the hemispherical clamping assembly (4); The pipe clamping assembly (3) comprises a mounting frame (31), a hydraulic press (32), an upper arc plate (33), a lower arc plate upper plate (34) and a lower arc plate lower plate (37); the mounting frame (31) is fixedly mounted on the mounting seat (1); the hydraulic press (32) is fixedly mounted on the top inner wall of the mounting frame (31); the upper arc plate (33) is fixedly mounted on the output end of the hydraulic press (32); the lower arc plate lower plate (37) is fixedly mounted on the mounting seat (1); one end of the lower arc plate upper plate (34) is hingedly mounted on one end of the lower arc plate lower plate (37); and an arc-shaped groove (38) is formed in the lower arc plate lower plate (37); The hemispherical clamping assembly (4) comprises a slider (41), a spring (44), a mounting frame (45), a loading platform (46), a synchronization rod (423) and a synchronization block (424); the loading platform (46) is fixedly mounted on the mounting seat (1) and symmetrically distributed on both sides of the upper arc plate (33); the slider (41) is slidably mounted on the mounting seat (1) and symmetrically distributed on both sides of the loading platform (46); the mounting frame (45) is vertically slidably mounted on the slider (41); 1) On the top wall, one end of the second spring (44) is fixed on the slider (41), the other end of the second spring (44) is fixed on the second mounting frame (45), the synchronization block (424) is symmetrically fixed on the outer walls of both sides of the second mounting frame (45), a rectangular groove is provided inside the synchronization block (424), the end of the synchronization rod (423) is slidably and rotatably arranged in the rectangular groove, and the middle section of the synchronization rod (423) is movably inserted in the arc groove (38); The pneumatic component (5) comprises a screw rod (54), and the screw rod (54) is horizontally rotatably arranged inside the slider (41).

2. The welding fixture for air compressor production according to claim 1 is characterized in that: A clamping unit is provided inside the second mounting frame (45), and the clamping unit includes a central arc plate (47), an L-shaped rack (48), a toothed slider (49), a connecting rod (410), a clamping box (411), a motor (412), a gear (414), a transmission rod (415), a threaded cylinder (416) and a guide plate (418), wherein the toothed slider (49) is slidably arranged on the inner wall of the second mounting frame (45), one end of the connecting rod (410) is coaxially fixed on one side outer wall of the toothed slider (49), the clamping box (411) is fixedly arranged on one end of the connecting rod (410) away from the toothed slider (49), and the motor (412) is fixedly installed on the top outer wall of the clamping box (411). The upper end of the transmission rod (415) is vertically rotatably arranged on the top inner wall of the clamping box (411), the transmission rod (415) is coaxially connected to the output end of the motor (412), the gear (414) is fixedly sleeved on the transmission rod (415), the threaded tube (416) is slidably sleeved on the transmission rod (415), the guide plate (418) is fixedly arranged on the inner wall of the clamping box (411), the L-shaped rack (48) is axially symmetrical about the axis of the transmission rod (415) and penetrates and slides on the side wall of the clamping box (411), the L-shaped rack (48) is meshingly connected with the gear (414), and the center arc plate (47) is fixedly arranged on the end of the L-shaped rack (48) away from the gear (414).

3. The welding fixture for air compressor production according to claim 2 is characterized in that: The clamping box (411) is provided with an adsorption unit inside, and the adsorption unit includes a hose 1 (419), a sleeve 2 (420) and a suction cup (421), wherein the sleeve 2 (420) is fixedly arranged at one end of the threaded tube (416), and the suction cup (421) is slidably arranged in the sleeve 2 (420), and an air guide hole 1 (425) is opened in the connecting rod 1 (410), one end of the hose 1 (419) is passed through and fixedly arranged on the sleeve 2 (420), and the other end of the hose 1 (419) passes through the connecting rod 1 (410) and the toothed slider (49).

4. The welding fixture for air compressor production according to claim 3 is characterized in that: The pneumatic assembly (5) further comprises an air pump (51), a second hose (52), an impeller cover (53), an impeller (55) and a second air guide pipe (57). The air pump (51) is fixedly mounted on the mounting seat (1). The impeller cover (53) is fixedly mounted on the mounting seat (1). The second hose (52) has three inlets and outlets. One inlet and outlet of the second hose (52) is connected to the air inlet of the air pump (51). The other two inlets and outlets of the second hose (52) are fixedly mounted on the side walls of two second mounting frames (45). The impeller (55) is rotatably mounted in the impeller cover (53). The impeller (55) is coaxially fixedly connected to the screw (54). One end of the second air guide pipe (57) is fixedly mounted to the air outlet of the air pump (51). The other end of the second air guide pipe (57) is fixedly mounted to the outer wall of the impeller cover (53).

5. The welding fixture for air compressor production according to claim 4, characterized in that: A pneumatic drive unit is provided inside the second mounting frame (45), and the pneumatic drive unit comprises a first stopper (510), a second stopper (512), a piston block (513) and a spur rack (515). A piston cavity (59) is provided inside the second mounting frame (45). A second air guide hole (58) is provided inside the second mounting frame (45), one end of the second air guide hole (58) is connected to the second hose (52), and the other end of the second air guide hole (58) is connected to the piston cavity (59). A third air guide hole (511) is provided on the second mounting frame (45), and the third air guide hole (511) is connected to the piston cavity (59). The first stopper (510) The piston block (513) is movably arranged in the piston cavity (59), the stopper block (512) is fixedly arranged on the upper wall of the piston block (513), and a gas guide hole (514) is provided through the piston block (513). One end of the gas guide hole (514) is connected to the piston cavity (59), and the other end is connected to the hose (419). The end of the piston block (513) away from the stopper block (512) is rotatably connected to the toothed slider (49), and the spur rack (515) is fixedly arranged on the inner wall of the mounting frame (45), and the spur rack (515) is meshed with the toothed slider (49).

6. The welding fixture for air compressor production according to claim 5, characterized in that: A material discharge unit is fixedly provided at one end of the upper arc plate (33), and the material discharge unit comprises a slider 1 (39) and a spring 1 (310). The slider 1 (39) is symmetrically slidably arranged in the upper arc plate (33), and the two ends of the spring 1 (310) are respectively fixedly arranged on the side walls of the two sliders 1 (39) close to each other.

7. The welding fixture for air compressor production according to claim 6, characterized in that: The tube clamping assembly (3) further comprises a loading platform (35) and a unloading box (36); the loading platform (35) is fixedly arranged on the mounting seat (1), and the unloading box (36) is fixedly arranged on the mounting seat (1).

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