阅读说明：本技术 一种消除罐体与环状筋板焊缝间隙的装置 (Device for eliminating weld gap between tank body and annular rib plate ) 是由 刘聪 徐建 种衍奎 杜望 于 2021-09-27 设计创作，主要内容包括：本发明属于输送具有流动性物料的罐体制造技术领域,具体涉及一种消除罐体与环状筋板焊缝间隙的装置,包括X向位置移动装置、Z向垂直升降装置、Y向水平进退装置和压轮装置；所述Z向垂直升降装置安装在X向位置移动装置的直线移动组件上,所述Y向水平进退装置固定在Z向垂直升降装置的直线移动组件上,所述压轮装置固定在Y向水平进退装置的直线移动组件上；所述压轮装置包括压轮组以及与Y向水平进退装置的直线移动组件固定连接的压轮机架,压轮组与压轮机架间设有压轮缓冲器,所述压轮组包括由左到右依次独立设置的左侧压轮组件、中部压轮组件以及右侧压轮组件。本装置能够均匀稳定的消除罐体与环状筋板之间的间隙,保证优良的焊接质量。(The invention belongs to the technical field of manufacturing of a tank body for conveying materials with fluidity, and particularly relates to a device for eliminating a gap between the tank body and a welding seam of an annular rib plate, which comprises an X-direction position moving device, a Z-direction vertical lifting device, a Y-direction horizontal driving and reversing device and a pinch roller device; the Z-direction vertical lifting device is arranged on a linear moving assembly of the X-direction position moving device, the Y-direction horizontal driving and reversing device is fixed on the linear moving assembly of the Z-direction vertical lifting device, and the pinch roller device is fixed on the linear moving assembly of the Y-direction horizontal driving and reversing device; the pinch roller device comprises a pinch roller set and a pinch roller frame fixedly connected with a linear moving assembly of the Y-direction horizontal driving and reversing device, a pinch roller buffer is arranged between the pinch roller set and the pinch roller frame, and the pinch roller set comprises a left pinch roller assembly, a middle pinch roller assembly and a right pinch roller assembly which are sequentially and independently arranged from left to right. The device can uniformly and stably eliminate the gap between the tank body and the annular rib plate, and ensures excellent welding quality.)

1. A device for eliminating the gap between a tank body and a welding seam of an annular rib plate is characterized in that: comprises an X-direction position moving device (1), a Z-direction vertical lifting device (2), a Y-direction horizontal driving and reversing device (3) and a pinch roller device (4); the Z-direction vertical lifting device (2) is arranged on a linear moving assembly of the X-direction position moving device (1), the Y-direction horizontal driving and reversing device (3) is fixed on the linear moving assembly of the Z-direction vertical lifting device (2), and the pinch roller device (4) is fixed on the linear moving assembly of the Y-direction horizontal driving and reversing device (3); the pinch roller device (4) comprises a pinch roller group and a pinch roller frame (4-1) fixedly connected with a linear moving component of the Y-direction horizontal driving and reversing device (3), a pinch roller buffer (4-2) is arranged between the pinch roller group and the pinch roller frame (4-1), the pressing wheel group comprises a left pressing wheel component (4-3), a middle pressing wheel component (4-5) and a right pressing wheel component (4-4) which are independently arranged from left to right, the pressing wheel of the left pressing wheel component (4-3), the pressing wheel of the middle pressing wheel component (4-5) and the pressing wheel of the right pressing wheel component (4-4) are all arranged in the same direction, and the outermost side of the pinch roller of the middle pinch roller assembly (4-5) is lower than the outermost side of the pinch roller of the left pinch roller assembly (4-3) and the outermost side of the pinch roller of the right pinch roller assembly (4-4).

2. The device for eliminating the gap between the welding seam of the tank body and the annular rib plate according to claim 1, is characterized in that: the pinch roller buffer (4-2) comprises a guide shaft (4-21), a buffer sleeve (4-22), a buffer spring (4-23) and a cover plate (4-24), wherein the guide shaft (4-21) is a multi-step shaft, one end of the guide shaft (4-21) is fixed with the pinch roller set, and the other end of the guide shaft (4-21) sequentially penetrates through the pinch roller rack (4-1) and the buffer sleeve (4-22) and is fastened through a locking nut (4-25); the buffer springs (4-23) are sleeved on the guide shafts (4-21), and the buffer springs (4-23) are clamped between the shaft shoulders of the guide shafts (4-21) and the cover plates (4-24) movably fixed on the buffer sleeves (4-22).

3. The device for eliminating the gap between the welding seam of the tank body and the annular rib plate according to claim 1, is characterized in that: the X-direction position moving device (1) comprises a moving ground rail assembly (1-1), a moving slide carriage assembly (1-2), a moving driving assembly (1-3) and a position moving guide rail slide block assembly (1-4), wherein the position moving guide rail slide block assembly (1-4) is fixed on the moving ground rail assembly (1-1), the moving slide carriage assembly (1-2) is fixedly connected with a slide block of the position moving guide rail slide block assembly (1-4), and the moving driving assembly (1-3) is fixed on the moving slide carriage assembly (1-2) and used for driving the moving slide carriage assembly (1-2) to linearly move along a guide rail of the position moving guide rail slide block assembly (1-4);

the Z-direction vertical lifting device (2) comprises a vertical lifting frame (2-1), a vertical lifting slide carriage (2-2), a lifting driving assembly (2-3), a lifting guide rail sliding block assembly (2-4) and a vertical transmission component (2-5), the lifting guide rail sliding block assembly (2-4) and the vertical transmission component (2-5) are arranged along the same direction of the vertical lifting rack (2-1), the vertical lifting slide carriage (2-2) is simultaneously fixed on the lifting guide rail sliding block assembly (2-4) and the vertical transmission component (2-5), the lifting driving assembly (2-3) is used for driving the vertical transmission component (2-5) to enable the vertical lifting slide carriage (2-2) to linearly move along the vertical transmission component (2-5), and the vertical lifting rack (2-1) is fixed on the moving slide carriage assembly (1-2);

the Y-direction horizontal advancing and retreating device (3) comprises a horizontal advancing and retreating rack (3-1), a horizontal advancing and retreating slide carriage (3-2), a horizontal advancing and retreating driving assembly (3-3), a horizontal advancing and retreating guide rail slide block assembly (3-4) and a horizontal transmission component (3-5), wherein the horizontal advancing and retreating guide rail slide block assembly (3-4) and the horizontal transmission component (3-5) are arranged along the horizontal advancing and retreating rack (3-1) in the same direction, the horizontal advancing and retreating slide carriage (3-2) is simultaneously fixed on the horizontal advancing and retreating guide rail slide block assembly (3-4) and the horizontal transmission component (3-5), and the horizontal advancing and retreating driving assembly (3-3) is used for driving the horizontal transmission component (3-5) to enable the horizontal advancing and retreating slide carriage (3-2) to linearly move along the horizontal transmission component (3-5), the horizontal advancing and retreating rack (3-1) is fixed on the vertical lifting slide carriage (2-2).

4. The device for eliminating the gap between the welding seam of the tank body and the annular rib plate according to claim 3, is characterized in that: the moving driving assembly (1-3) comprises a servo motor (1-31), a speed reducer (1-32), a driving gear (1-33) and a rack, an output shaft of the servo motor (1-31) is in transmission connection with the speed reducer (1-32) fixed on the moving slide carriage assembly (1-2), an output shaft of the speed reducer (1-32) is in transmission connection with the driving gear (1-33), and the driving gear (1-33) is meshed with the rack fixed on the moving ground rail assembly (1-1).

5. The device for eliminating the gap between the welding seam of the tank body and the annular rib plate according to claim 3, is characterized in that: the Z-direction vertical lifting device (2) is movably fixed on the side face of the vertical lifting fixing frame (5), and the bottom of the vertical lifting fixing frame (5) is movably fixed with the movable slide carriage assembly (1-2).

6. The device for eliminating the gap between the welding seam of the tank body and the annular rib plate according to claim 3, is characterized in that: the lifting driving assembly (2-3) and the horizontal advancing and retreating driving assembly (3-3) are both provided with encoders.

7. The device for eliminating the gap between the welding seam of the tank body and the annular rib plate according to claim 3, is characterized in that: the pinch roller frame (4-1) comprises a fixed supporting plate (4-11) used for supporting the pinch roller buffer (4-2) and a pinch roller frame fixing plate (4-12) vertically fixed with the fixed supporting plate (4-11), and the pinch roller frame fixing plate (4-12) is movably fixed with the horizontal advancing and retreating slide carriage (3-2).

8. The device for eliminating the gap between the welding seam of the tank body and the annular rib plate according to claim 7, is characterized in that: and rib plates (4-13) are arranged between the fixed supporting plates (4-11) and the fixed plates (4-12) of the pinch roller frame.

Technical Field

The invention belongs to the technical field of manufacturing of tank bodies for conveying materials with fluidity, and particularly relates to a device for eliminating a gap between a tank body and a welding seam of an annular rib plate.

Background

The tank body is an important container for conveying liquid, powder and other materials with fluidity. Due to the characteristics of large volume and diameter of the tank body, the rigidity of the tank body is poor, and an annular rib plate needs to be welded on an outer ring in the production of the tank body, so that the tank body is used for enhancing the strength of the tank body and providing other purposes such as installation, placement and the like. In the welding process, a gap exists between the tank body and the annular rib plate, so that the welding quality is poor. At present, tools such as an iron hammer are mostly used manually to beat and extrude to achieve the purpose of eliminating gaps. The method has the advantages of easy deformation of the tank body, uneven stress on the annular rib plate, unstable welding quality, large manpower loss, time and labor waste due to uneven manpower.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides the device for eliminating the gap between the tank body and the annular rib plate, which can be automatically suitable for different tank bodies and different rib plate positions, saves time and labor, uniformly and stably eliminates the gap between the tank body and the annular rib plate, and ensures excellent welding quality.

The invention is realized by the following technical scheme: a device for eliminating the gap between a tank body and a welding seam of an annular rib plate comprises an X-direction position moving device, a Z-direction vertical lifting device, a Y-direction horizontal driving and reversing device and a pinch roller device; the Z-direction vertical lifting device is arranged on a linear moving assembly of the X-direction position moving device, the Y-direction horizontal driving and reversing device is fixed on the linear moving assembly of the Z-direction vertical lifting device, and the pinch roller device is fixed on the linear moving assembly of the Y-direction horizontal driving and reversing device; the pinch roller device includes pinch roller group and with Y to the straight-line movement subassembly fixed connection's of horizontal driving and reversing device pinch roller frame, is equipped with the pinch roller buffer between pinch roller group and pinch roller frame, the pinch roller group includes left side pinch roller subassembly, middle part pinch roller subassembly and the right side pinch roller subassembly that independently sets up in proper order by a left side to the right side, and the pinch roller of left side pinch roller subassembly, the pinch roller of middle part pinch roller subassembly and the equal syntropy setting of pinch roller of right side pinch roller subassembly, and the pinch roller of middle part pinch roller subassembly outside will be less than the pinch roller of left side pinch roller subassembly outside and the pinch roller of right side pinch roller subassembly outside.

Furthermore, the pinch roller buffer comprises a guide shaft, a buffer sleeve, a buffer spring and a cover plate, wherein the guide shaft is a multi-step shaft, one end of the guide shaft is fixed with the pinch roller set, and the other end of the guide shaft sequentially penetrates through the pinch roller frame and the buffer sleeve and is fastened through a locking nut; the buffer spring is sleeved on the guide shaft and is clamped between a shaft shoulder of the guide shaft and a cover plate movably fixed on the buffer sleeve.

Furthermore, the X-direction position moving device comprises a moving ground rail assembly, a moving slide carriage assembly, a moving driving assembly and a position moving guide rail sliding block assembly, wherein the position moving guide rail sliding block assembly is fixed on the moving ground rail assembly, the moving slide carriage assembly is fixedly connected with a sliding block of the position moving guide rail sliding block assembly, and the moving driving assembly is fixed on the moving slide carriage assembly and is used for driving the moving slide carriage assembly to linearly move along a guide rail of the position moving guide rail sliding block assembly;

the Z-direction vertical lifting device comprises a vertical lifting rack, a vertical lifting slide carriage, a lifting driving assembly, a lifting guide rail slide block component and a vertical transmission component, wherein the lifting guide rail slide block component and the vertical transmission component are arranged along the vertical lifting rack in the same direction;

the Y-direction horizontal driving and reversing device comprises a horizontal driving and reversing rack, a horizontal driving and reversing slide carriage, a horizontal driving and reversing drive assembly, a horizontal driving and reversing guide rail slide block assembly and a horizontal transmission component, wherein the horizontal driving and reversing guide rail slide block assembly and the horizontal transmission component are arranged in the same direction along the horizontal driving and reversing rack, the horizontal driving and reversing slide carriage is simultaneously fixed on the horizontal driving and reversing guide rail slide block assembly and the horizontal transmission component, the horizontal driving and reversing drive assembly is used for driving the horizontal transmission component to enable the horizontal driving and reversing slide carriage to linearly move along the horizontal transmission component, and the horizontal driving and reversing rack is fixed on the vertical lifting slide carriage.

Furthermore, the movable driving assembly comprises a servo motor, a speed reducer, a driving gear and a rack, an output shaft of the servo motor is in transmission connection with the speed reducer fixed on the movable slide carriage assembly, an output shaft of the speed reducer is in transmission connection with the driving gear, and the driving gear is meshed with the rack fixed on the movable ground rail assembly.

Furthermore, the Z-direction vertical lifting device is movably fixed on the side face of the vertical lifting fixing frame, and the bottom of the vertical lifting fixing frame is movably fixed with the movable slide carriage assembly.

Further, the elevation driving assembly and the horizontal forward and backward driving assembly are both equipped with encoders.

Furthermore, the pinch roller frame comprises a fixed support plate for supporting the pinch roller buffer and a pinch roller frame fixing plate vertically fixed with the fixed support plate, and the pinch roller frame fixing plate is movably fixed with the horizontal forward and backward slide carriage.

Furthermore, a rib plate is arranged between the fixed supporting plate and the fixed plate of the pinch roller frame.

The invention has the beneficial effects that: the device of this application can adapt to different jar bodies, cyclic annular gusset different positions automatically, can evenly eliminate the welding clearance between jar body and the cyclic annular gusset, reaches the mesh of guaranteeing jar body outward appearance integrality, improvement welding quality. Compared with the prior art, a large amount of manpower can be saved, and the automation level of welding is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural diagram of the pinch roller device according to the present invention;

FIG. 3 is a side view of the puck assembly of the present invention;

FIG. 4 is a schematic diagram of a puck cushion of the present invention;

FIG. 5 is a schematic structural diagram of an X-direction position moving device according to the present invention;

FIG. 6 is a schematic view of the mobile drive assembly of the present invention;

FIG. 7 is a schematic structural view of the Z-direction vertical lift device of the present invention;

FIG. 8 is a schematic view of the Y-direction horizontal advancing and retreating device of the present invention;

FIG. 9 is a schematic view of the vertical lift mount of the present invention;

FIG. 10 is a schematic view of the present invention in use;

in the figure, 1, an X-direction position moving device, 1-1, a moving ground rail assembly, 1-2, a moving slide carriage assembly, 1-3, a moving driving assembly, 1-31, a servo motor, 1-32, a speed reducer, 1-33, a driving gear, 1-4, a position moving guide rail slide block assembly, a 2, Z-direction vertical lifting device, 2-1, a vertical lifting frame, 2-2, a vertical lifting slide carriage, 2-3, a lifting driving assembly, 2-4, a lifting guide rail slide block assembly, 2-5, a vertical transmission part, 3, a Y-direction horizontal advancing and retreating device, 3-1, a horizontal advancing and retreating frame, 3-2, a horizontal advancing and retreating slide carriage, 3-3, a horizontal advancing and retreating driving assembly, 3-4, a horizontal advancing and retreating guide rail slide block assembly, 3-5 and a horizontal transmission part, 4. 4-1 parts of a pinch roller device, 4-11 parts of a pinch roller frame, 4-12 parts of a fixed supporting plate, 4-13 parts of a pinch roller frame fixing plate, 4-2 parts of rib plates, 4-21 parts of a pinch roller buffer, 4-22 parts of a guide shaft, 4-23 parts of a buffer sleeve, 4-24 parts of a buffer spring, 4-25 parts of a cover plate, 4-25 parts of a locking nut, 4-3 parts of a left pinch roller assembly, 4-4 parts of a right pinch roller assembly, 4-5 parts of a middle pinch roller assembly, 5 parts of a vertical lifting fixing frame, 5-1 parts of a vertical lifting frame mounting plate, 6 parts of annular rib plates.

Detailed Description

The invention is further illustrated below with reference to the figures and examples.

As shown in figure 1, the device for eliminating the gap between the welding seam of the tank body and the annular rib plate comprises an X-direction position moving device 1, a Z-direction vertical lifting device 2, a Y-direction horizontal driving and reversing device 3 and a pinch roller device 4.

As shown in FIG. 5, the X-direction position moving device 1 comprises a moving ground rail assembly 1-1, a moving slide carriage assembly 1-2, a moving driving assembly 1-3 and a position moving guide rail slide block assembly 1-4. The position moving guide rail and slide block assembly 1-4 comprises a guide rail and a slide block, two guide rails are arranged on the moving ground rail assembly 1-1 in parallel, and each guide rail is provided with a plurality of slide blocks. The moving slide carriage assembly 1-2 is fixedly connected with the slide block of the position moving guide rail slide block assembly 1-4 through a screw, and the moving driving assembly 1-3 is fixed on the moving slide carriage assembly 1-2 and is used for driving the moving slide carriage assembly 1-2 to linearly move along the guide rail of the position moving guide rail slide block assembly 1-4. As shown in fig. 6, the mobile driving assembly 1-3 specifically comprises servo motors 1-31, speed reducers 1-32, driving gears 1-33 and racks, output shafts of the servo motors 1-31 are in transmission connection with the speed reducers 1-32 fixed on the mobile slide carriage assembly 1-2, and shells of the servo motors 1-31 and shells of the speed reducers 1-32 are fixed through screws; the output shafts of the speed reducers 1 to 32 are in transmission connection with driving gears 1 to 33, and the driving gears 1 to 33 are meshed with racks fixed on the movable ground rail assembly 1 to 1. The slide blocks of the movable slide carriage assembly 1-2 and the position moving guide rail slide block assembly 1-4 are driven to linearly move along the guide rail of the position moving guide rail slide block assembly 1-4 through gear and rack transmission.

As shown in figure 7, the Z-direction vertical lifting device 2 comprises a vertical lifting frame 2-1, a vertical lifting slide carriage 2-2, a lifting driving assembly 2-3, a lifting guide rail slide block assembly 2-4 and a vertical transmission component 2-5. As shown in fig. 1 and 9, a vertical lifting frame 2-1 is movably fixed with the moving slide carriage assembly 1-2 through a vertical lifting fixing frame 5, a vertical lifting frame mounting plate 5-1 is arranged on the side surface of the vertical lifting fixing frame 5, the vertical lifting frame 2-1 is movably fixed with the vertical lifting frame mounting plate 5-1 on the side surface of the vertical lifting fixing frame 5 through screws, and the bottom of the vertical lifting fixing frame 5 is movably connected with the moving slide carriage assembly 1-2 through screws. The lifting guide rail sliding block assembly comprises two sets of lifting guide rail sliding block assemblies 2-4, the two sets of lifting guide rail sliding block assemblies 2-4 are arranged on a vertical lifting rack 2-1 in parallel, a vertical transmission component 2-5 and the two sets of lifting guide rail sliding block assemblies 2-4 are arranged in the same direction, the vertical transmission component 2-5 is arranged at the symmetrical center of the two sets of lifting guide rail sliding block assemblies 2-4, the vertical transmission component 2-5 adopts a lead screw transmission component, a lead screw of the vertical transmission component 2-5 is in transmission connection with a lifting driving assembly 2-3, the lifting driving assembly 2-3 adopts a servo motor as a driving component, and a rotary motor can also be adopted as a driving component. The thread sleeve of the vertical transmission part 2-5 is fixedly connected with the vertical lifting slide carriage 2-2, the vertical lifting slide carriage 2-2 is also connected with the lifting guide rail sliding block components 2-4 at two sides in a sliding way, and the lifting guide rail sliding block components 2-4 play a role in guiding and limiting the movement of the vertical lifting slide carriage 2-2. When the lifting driving assembly 2-3 drives the screw rod of the vertical transmission part 2-5 to rotate, the screw sleeve of the vertical transmission part 2-5 is driven to linearly move along the screw rod of the vertical transmission part 2-5 so as to drive the vertical lifting slide carriage 2-2 to linearly move.

As shown in figure 8, the Y-direction horizontal advancing and retreating device 3 comprises a horizontal advancing and retreating rack 3-1, a horizontal advancing and retreating slide carriage 3-2, a horizontal advancing and retreating driving assembly 3-3, a horizontal advancing and retreating guide rail slide block assembly 3-4 and a horizontal transmission component 3-5. The horizontal advancing and retreating guide rail sliding block assemblies 3-4 are provided with two sets, the two sets of horizontal advancing and retreating guide rail sliding block assemblies 3-4 are arranged on the horizontal advancing and retreating rack 3-1 in parallel, the horizontal transmission components 3-5 are arranged in the same direction as the two sets of horizontal advancing and retreating guide rail sliding block assemblies 3-4, the horizontal transmission components 3-5 are arranged at the symmetric centers of the two sets of horizontal advancing and retreating guide rail sliding block assemblies 3-4, the horizontal transmission components 3-5 adopt lead screw transmission components, lead screws of the horizontal transmission components 3-5 are in transmission connection with the horizontal advancing and retreating driving assemblies 3-3, and the horizontal advancing and retreating driving assemblies 3-3 adopt servo motors as driving components or rotary motors as driving components. The thread sleeve of the horizontal transmission part 3-5 is fixedly connected with the horizontal advancing and retreating slide carriage 3-2, the horizontal advancing and retreating slide carriage 3-2 is also in sliding connection with the horizontal advancing and retreating guide rail sliding block assemblies 3-4 on the two sides, and the horizontal advancing and retreating guide rail sliding block assemblies 3-4 play a role in guiding and limiting the movement of the horizontal advancing and retreating slide carriage 3-2. When the horizontal driving and reversing driving assembly 3-3 drives the screw rod of the horizontal transmission part 3-5 to rotate, the screw sleeve of the horizontal transmission part 3-5 is driven to linearly move along the screw rod of the horizontal transmission part 3-5 so as to drive the horizontal driving and reversing slide carriage 3-2 to linearly move.

As shown in fig. 2 to 4, the pinch roller device 4 comprises a pinch roller set and a pinch roller frame 4-1 fixedly connected with a linear moving component of the Y-direction horizontal driving and reversing device 3, the pinch roller set comprises a left pinch roller component 4-3, a middle pinch roller component 4-5 and a right pinch roller component 4-4 which are independently arranged from left to right, and corresponding pinch roller buffers 4-2 are arranged on the left pinch roller component 4-3, the middle pinch roller component 4-5 and the right pinch roller component 4-4. The pinch roller of the left pinch roller assembly 4-3, the pinch roller of the middle pinch roller assembly 4-5 and the pinch roller of the right pinch roller assembly 4-4 are all arranged in the same direction, and the outermost side of the pinch roller of the middle pinch roller assembly 4-5 is lower than the outermost side of the pinch roller of the left pinch roller assembly 4-3 and the outermost side of the pinch roller of the right pinch roller assembly 4-4. As shown in figure 10, the pressing wheel group of the pressing wheel device 4 is matched with the shape of the annular rib plate 6, and the annular rib plate is stably extruded through the configuration mode, so that the purpose of eliminating the gap between the annular rib plate and the tank body is achieved. The left, middle and right three groups of press wheels with different heights of the press wheel group can be attached to the annular rib plate 6, and scratches and damages to a workpiece in the rotating process can be reduced by adopting the press wheels.

As shown in fig. 4, the pinch roller buffer 4-2 comprises a guide shaft 4-21, a buffer sleeve 4-22, a buffer spring 4-23 and a cover plate 4-24, wherein the guide shaft 4-21 is a multi-step shaft, one end of the guide shaft 4-21 is fixed with the pinch roller set, and the other end of the guide shaft 4-21 sequentially penetrates through the pinch roller frame 4-1 and the buffer sleeve 4-22 and is fastened through a lock nut 4-25; the buffer springs 4-23 are sleeved on the guide shafts 4-21, the buffer springs 4-23 are clamped between the shaft shoulders of the guide shafts 4-21 and the cover plates 4-24 movably fixed on the buffer sleeves 4-22, the elastic force of the buffer springs 4-23 is selected according to the force required for eliminating the clearance, when the guide shafts 4-21 are pressed, the buffer springs 4-23 are pressed towards the buffer sleeves 4-22 through the shaft shoulders of the guide shafts 4-21, and then move towards the buffer sleeves 4-22, and after the external force is relieved, the guide shafts 4-21 are restored to the initial positions under the elastic force of the buffer springs 4-23. When the left pinch roller assembly 4-3, the middle pinch roller assembly 4-5 and the right pinch roller assembly 4-4 are subjected to reverse acting force given by the annular rib plates, the floating bodies float to some extent under the action of the corresponding pinch roller buffers 4-2, and deformation of the tank body caused by overlarge extrusion force of the pinch roller sets can be avoided.

As shown in fig. 2 and 3, the pinch roller frame 4-1 includes a fixed support plate 4-11 for supporting the pinch roller buffer 4-2 and a pinch roller frame fixing plate 4-12 vertically fixed to the fixed support plate 4-11, and the pinch roller frame fixing plate 4-12 is movably fixed to the horizontal forward and backward slide 3-2. And rib plates 4-13 are arranged between the fixed supporting plates 4-11 and the pinch roller frame fixing plates 4-12 and are used for enhancing the connection strength of the fixed supporting plates 4-11 and the pinch roller frame fixing plates 4-12.

As a modification of the present embodiment, the elevation drive unit 2-3 and the horizontal forward and backward drive unit 3-3 are each equipped with an encoder. The moving position of the device for eliminating the welding gap between the tank body and the annular rib plate in the height direction (Z direction) and the horizontal direction (Y direction) is controlled by the encoder, so that the accuracy of the gap position and the success rate of gap elimination are improved.

A device for eliminating the gap between the welding seam of a tank body and an annular rib plate specifically comprises the following steps: according to the relative position of the annular rib plate on the tank body, moving the driving assembly 1-3 to act, and driving the moving slide carriage assembly 1-2 to convey the pressing wheel device 4 to the position corresponding to the annular rib plate; then the lifting driving assembly 2-3 acts to drive the vertical lifting slide carriage 2-2 to lift or descend so that the pressing wheel device 4 is positioned at the horizontal position of the center of the tank body; then, the horizontal forward and backward driving assembly 3-3 acts, and the horizontal forward and backward sliding plate 3-2 drives the pressing wheel device 4 to extrude the annular rib plate, so that the purpose of eliminating the gap between the annular rib plate and the tank body is achieved.

After the annular rib plate and the tank body are welded, the horizontal driving and reversing drive assembly 3-3 drives the tank body to move reversely, the pinch roller device 4 is conveyed to the Y-direction starting position, the drive assembly 1-3 is moved to convey the tank body to the position of the next annular rib plate, and repeated actions are carried out.

The device of this application can adapt to different jar bodies, cyclic annular gusset different positions automatically, can evenly eliminate the welding clearance between jar body and the cyclic annular gusset, reaches the mesh of guaranteeing jar body outward appearance integrality, improvement welding quality. Compared with the prior art, a large amount of manpower can be saved, and the automation level of welding is improved.