Welding equipment for volute type fan machining

Abstract

The invention provides welding equipment for volute type fan machining, and relates to the technical field of welding devices.The welding equipment comprises a mounting mechanism, during use, a screw is rotated, a positioning block is moved to the corresponding height, a prefabricated rod is sleeved with a pressing plate from top to bottom, and when the pressing plate is pressed to the upper end of a volute type fan, the positioning block is moved to the corresponding height; the elastic block can be clamped into the fixing groove in the pressing plate, the pressing plate can be fixed on the prefabricated rod while pressing and fixing the volute type fan, in this way, the pressing plate can be conveniently installed on the prefabricated rod, the fixing height of the pressing plate can be changed by adjusting the installation position of the positioning block, and therefore the volute type fan can be conveniently installed. Therefore, the fixing device can adapt to more types of volute fans, and the problems that an existing volute fan shell is fixed to a rotary disc through a screw and a pressing plate, the pressing plate is very inconvenient to mount and dismount through the screw fixing mode, workers need to spend a certain time for mounting and dismounting, and the working efficiency is high are solved. And therefore, the processing efficiency is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of welding devices, and in particular to welding equipment for processing a volute type fan. Background Art

[0002] Fans belong to the category of general machinery and are widely used in bridges and tunnels, house construction, power plants, heavy industry, chemical industry and other industries. The volute is an indispensable basic component of the centrifugal fan. Its function is to collect the high-speed airflow from the fan impeller and guide this high-speed airflow to the exhaust port. Since the volute will affect the flow of air flow field, the structure of the volute has a direct effect on the efficiency of the fan. When welding the volute fan, it is necessary to fix the plate structures on both sides to the middle cylindrical structure, and then use welding equipment to weld and fix them, and finally form a volute fan casing.

[0003] For example, application number: CN202220143344.8 involves a volute welding machine for small fan production, including a support base, the support base includes a bottom plate and a connecting platform, the upper end face of the bottom plate is fixedly connected to the connecting platform, and a volute limiting assembly is arranged on the top of the connecting platform, the volute limiting assembly includes a positioning plate, a support column and a limiting ring, the upper end face of the positioning plate is fixedly connected to the support column, a limiting ring is arranged on the top of the support column, and the limiting ring and the support column are rotatably connected, a lifting platform is arranged on one side of the support base, a welding arm is arranged on the top of the lifting platform, and the welding arm and the lifting platform are fixedly connected, and the fixing of the volute assembly to be welded can be made more convenient by the mutual cooperation between the set limiting ring, the threaded column and the locking member, and the rotation of the volute assembly to be welded can be made more stable by the mutual cooperation between the set driving motor, the driving gear and the rack, so that the welding of the welding arm can be made more convenient.

[0004] However, there are some shortcomings in the current design of the volute fan welding device. First, the volute fan casing is fixed to the turntable by means of screws and pressure plates. This screw fixing method is very inconvenient when installing and removing the pressure plate, and requires staff to spend a certain amount of time to carry out, which will reduce the processing efficiency. In addition, the existing welding device lacks a structure for auxiliary inspection of the splicing quality of the plate structures on both sides and the middle cylindrical structure. This will cause the plate structure to easily tilt when spliced ​​to the two sides of the cylindrical structure, thereby affecting the assembly accuracy of the volute fan. Summary of the invention

[0005] In view of the above problems, one purpose of the present application is to remedy these shortcomings, and more specifically to provide a welding device for processing a volute fan, which can improve the efficiency of fixing the volute fan and can inspect the assembly accuracy at the corners of the volute fan.

[0006] According to a first aspect of the present disclosure, there is provided a welding device for processing a volute-type fan, which specifically comprises: a mounting mechanism; the mounting mechanism comprises a main body and a driving gear, the main body being of a rectangular structure as a whole, and the driving gear being mounted on the front bottom of the main body through a motor; a fixing component is provided on the mounting mechanism, and a prefabricated rod of the fixing component is arranged at the top center position of a carrier plate on the front side of the main body; a lifting component is provided on the mounting mechanism, and a mounting block of the lifting component is slidably mounted in a movable frame at the inner end of the main body, and the mounting block is threadedly connected to a screw in the movable frame, and a welding unit at the outer end of the mounting block extends forward toward the prefabricated rod and the carrier plate.

[0007] Preferably, the mounting mechanism comprises: a carrier plate and a driven gear; the carrier plate is rotatably mounted on the front side of the main body; the driven gear is fixedly mounted on the lower end of the carrier plate, and the driven gear is at the bottom of the main body, and the driven gear is transmission-connected to the driving gear.

[0008] Preferably, the mounting mechanism comprises: an adjustment slot and a movable frame; the adjustment slot is opened at the inner rear end of the main body, and a screw controlled by a motor is rotatably installed in the adjustment slot; the movable frame is slidably installed in the adjustment slot, and the movable frame is threadedly connected to the screw in the adjustment slot.

[0009] Preferably, the fixing component comprises: a prefabricated rod and a slide groove; the prefabricated rod is a cylindrical structure; the slide groove is provided inside the prefabricated rod, and a screw rod is rotatably installed inside the slide groove.

[0010] Preferably, the fixing component includes: a positioning block and a spring block; the positioning block is slidably installed in the slide groove, and the positioning block is threadedly connected to the screw in the slide groove, and a rectangular groove is provided inside the positioning block; the spring block is slidably installed in the rectangular groove in the positioning block through an elastic member, and the spring block extends from the inside of the positioning block.

[0011] Preferably, the fixing component comprises: a pressing plate and a fixing groove, wherein the pressing plate is slidably mounted on the outside of the prefabricated rod; and the fixing groove is opened on one side of the upper end of the pressing plate, and the fixing groove is penetrated by the elastic block.

[0012] Preferably, the lifting component comprises: a mounting block, a welding unit and a lifting rod; the mounting block is a rectangular structure; the welding unit is movably mounted on the front upper end of the mounting block; and the lifting rod is slidably mounted on the rear side of the mounting block.

[0013] Preferably, the lifting component includes: a sliding rod, a slot and a top block A; the sliding rod is slidably installed at the lower end of the mounting block through an elastic member; the slots are symmetrically opened at the upper ends of both sides of the sliding rod, and the two groups of slots are engaged with the bottom of the lifting rod; the top block A is fixedly installed at the front lower end of the sliding rod.

[0014] Preferably, the lifting component includes: a guide groove and a ball; the guide groove is opened at the front upper end of the sliding rod, and the guide groove is wide on both sides and narrow in the middle; the ball is slidably installed on the guide groove, and the ball is located in the middle position of the guide groove.

[0015] Preferably, the lifting component includes: a telescopic plate, a positioning groove and a top block B; the telescopic plate is slidably installed on the front side of the sliding rod through an elastic member; the positioning groove is opened at the upper end of the telescopic plate, and the positioning groove is connected with the guide groove, and the bottom of the sphere falls into the positioning groove; the top block B is movably installed on the front side of the telescopic plate through a screw rod.

[0016] 1. The present invention provides a fixing component to fix the prefabricated rod on the carrier plate of the main body, and a sliding groove is provided inside the prefabricated rod. The positioning block is slidably installed in the sliding groove through a screw rod, and the wedge-shaped spring block is slidably installed inside the positioning block through an elastic member. When in use, the screw rod is rotated to move the positioning block to a corresponding height, and the pressure plate is sleeved on the prefabricated rod from top to bottom, so that when the pressure plate is pressed onto the upper end of the volute fan, the spring block can be engaged with the fixing groove in the pressure plate, so that the pressure plate can be fixed on the prefabricated rod while pressing and fixing the volute fan. Such a setting can facilitate the installation of the pressure plate on the prefabricated rod, and by adjusting the installation position of the positioning block, the fixing height of the pressure plate can also be changed, thereby making the fixing device suitable for more types of volute fans.

[0017] 2. The present invention provides a lifting component, slides and installs a sliding rod on the installation block, and sets a top block A on the front side of the sliding rod. The telescopic plate is slidably installed to the front side of the sliding rod through an elastic member, and a sphere is slidably installed in a guide groove on the sliding rod so that the bottom of the sphere falls into the positioning groove in the telescopic plate. A top block B is installed at the front end of the telescopic plate through a screw. When in use, the top block A on the front side of the sliding rod is pressed against the plate-like structure on the bottom side of the volute fan, and then the screw on the telescopic plate is rotated so that the front side of the top block B is pressed against the middle side of the volute fan. On the cylindrical structure, when in use, the volute fan is rotated by rotating the carrier plate, and the top block A and the top block B are slid along the outer end of the volute fan. Since the top block A and the top block B are relatively movable, once the plate structure on the bottom side of the volute fan is offset from the cylindrical structure, the telescopic plate will move relative to the sliding rod, so that the positioning groove and the guide groove are staggered. At this time, the ball will move on the guide groove, which will make it convenient for the staff to check whether the plate structures on both sides of the volute fan and the cylindrical structure in the middle are offset. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following drawings will provide a better understanding of the present disclosure and more clearly demonstrate the advantages of the present disclosure. The drawings described herein are for illustrative purposes only of selected embodiments, not all possible implementations, and are not intended to limit the scope of the present disclosure.

[0019] In the attached picture: Figure 1 A schematic diagram of a three-dimensional structure according to an embodiment of the present invention is shown.

[0020] Figure 2 A bottom view structural schematic diagram according to an embodiment of the present invention is shown.

[0021] Figure 3 A schematic diagram of a disassembled structure according to an embodiment of the present invention is shown.

[0022] Figure 4 A schematic plan view of the cross-sectional structure of the mounting mechanism according to an embodiment of the present invention is shown.

[0023] Figure 5 A schematic diagram of the three-dimensional structure of a fixing component according to an embodiment of the present invention is shown.

[0024] Figure 6 The embodiment according to the present invention is shown. Figure 5 The schematic diagram of the enlarged structure of part A is presented.

[0025] Figure 7 A schematic diagram of the three-dimensional structure of a lifting component according to an embodiment of the present invention is shown.

[0026] Figure 8 A partial cross-sectional structural schematic diagram of a lifting component according to an embodiment of the present invention is shown.

[0027] Fig. 9 A schematic diagram of the front connection structure of the lifting component according to an embodiment of the present invention is shown.

[0028] Reference numerals list 1. Installation mechanism; 101. main body; 1011. driving gear; 102, carrier plate; 1021, driven gear; 103, adjusting slot; 1031, movable frame; 2. Fixing parts; 201, prefabricated rod; 2011, chute; 202, positioning block; 2021, spring block; 203, pressing plate; 2031, fixing groove; 3. Lifting parts; 301, mounting block; 3011, welding unit; 3012, lifting rod; 302, sliding rod; 3021, card slot; 3022, top block A; 303, guide groove; 3031, sphere; 304, telescopic plate; 3041, positioning groove; 3042, top block B. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example 1: Please refer to Figures 1 to 9 As shown: The present invention provides a welding device for processing a volute fan, comprising: a mounting mechanism 1; the mounting mechanism 1 comprises a main body 101 and a driving gear 1011, the main body 101 is a rectangular structure as a whole, and the driving gear 1011 is mounted on the front bottom of the main body 101 through a motor; a fixing component 2 is provided on the mounting mechanism 1, and a prefabricated rod 201 of the fixing component 2 is arranged at the top center position of a carrier plate 102 on the front side of the main body 101; a lifting component 3 is provided on the mounting mechanism 1, and a mounting block 301 of the lifting component 3 is slidably mounted in a movable frame 1031 at the inner end of the main body 101, and the mounting block 301 is threadedly connected with a screw in the movable frame 1031, and a welding unit 3011 at the outer end of the mounting block 301 extends forward toward the prefabricated rod 201 and the carrier plate 102.

[0031] In the present disclosure, Figure 2 and 4As shown, the mounting mechanism 1 includes: a carrier plate 102 and a driven gear 1021; the carrier plate 102 is rotatably mounted on the front side of the main body 101; the driven gear 1021 is fixedly mounted on the lower end of the carrier plate 102, and the driven gear 1021 is at the bottom of the main body 101, and the driven gear 1021 is transmission-connected with the driving gear 1011; an adjusting slot 103 and a movable frame 1031; the adjusting slot 103 is arranged at the inner rear end of the main body 101, and a screw controlled by a motor is rotatably mounted in the adjusting slot 103; the movable frame 1031 is slidably mounted in the adjusting slot 103, and the movable frame 1031 is threadedly connected with the screw in the adjusting slot 103; a rectangular main body 101 is provided, and the carrier plate 102 can be rotatably mounted at the front end of the main body 101; a driving gear is provided The wheel 1011 can drive the driven gear 1021 to rotate when the driving gear 1011 is controlled by the motor to rotate by connecting the driving gear 1011 with the driven gear 1021. A circular carrier plate 102 is provided to fix the volute fan on the carrier plate 102. A driven gear 1021 is provided, and the driven gear 1021 is drive-connected with the driving gear 1011. When the driving gear 1011 rotates, the driven gear 1021 drives the carrier plate 102 to rotate. A rectangular adjusting groove 103 is provided, and a movable frame 1031 can be movably installed inside the main body 101 through the adjusting groove 103. A rectangular movable frame 1031 is provided, and the lifting component 3 can be slidably installed on the main body 101 through the movable frame 1031.

[0032] As the second embodiment of the present application, based on the first embodiment, Figure 5 and 6 As shown, the fixing component 2 includes: a positioning block 202 and a spring block 2021; the positioning block 202 is slidably installed in the slide groove 2011, and the positioning block 202 is threadedly connected to the screw in the slide groove 2011, and a rectangular groove is provided inside the positioning block 202; the spring block 2021 is slidably installed in the rectangular groove in the positioning block 202 through an elastic member, and the spring block 2021 extends from the inside of the positioning block 202; the pressing plate 203 and the fixing groove 2031 The pressing plate 203 is slidably installed on the outside of the prefabricated rod 201; the fixing groove 2031 is opened on one side of the upper end of the pressing plate 203, and the fixing groove 2031 is penetrated by the spring block 2021.

[0033] The present application sets a cylindrical prefabricated rod 201, so that a pressure plate 203 can be slidably installed on the prefabricated rod 201; sets a rectangular slide groove 2011, so that the positioning block 202 can be slidably installed on the prefabricated rod 201 through the slide groove 2011; sets a wedge-shaped spring block 2021, and by inserting the spring block 2021 into the fixing groove 2031, the pressure plate 203 placed on the upper end of the volute fan can be fixed on the prefabricated rod 201; sets a rectangular pressure plate 203, and by pressing the pressure plate 203 on the upper end of the volute fan, the volute fan can be fixed on the carrier 102; sets a rectangular fixing groove 2031, and by passing the spring block 2021 through the fixing groove 2031, the pressure plate 203 can be fixed on the outer end of the positioning block 202.

[0034] As the third embodiment of the present application, based on the first embodiment, Figures 7 to 9 As shown, the lifting component 3 includes: a mounting block 301, a welding unit 3011 and a lifting rod 3012; the mounting block 301 is a rectangular structure; the welding unit 3011 is movably mounted on the front upper end of the mounting block 301; the lifting rod 3012 is slidably mounted on the rear side of the mounting block 301; a sliding rod 302, a slot 3021 and a top block A3022; the sliding rod 302 is slidably mounted at the lower end of the mounting block 301 through an elastic member; the slots 3021 are symmetrically arranged at the upper ends of both sides of the sliding rod 302, and the two groups of slots 3021 are engaged with the bottom of the lifting rod 3012; the top block A3022 is fixedly mounted on the front lower end of the sliding rod 302; the guide groove 3 03 and ball 3031; the guide groove 303 is arranged at the upper end of the front side of the sliding rod 302, and the guide groove 303 is wide at both sides and narrow in the middle; the ball 3031 is slidably installed on the guide groove 303, and the ball 3031 is in the middle position of the guide groove 303; the telescopic plate 304, the positioning groove 3041 and the top block B3042; the telescopic plate 304 is slidably installed on the front side of the sliding rod 302 through an elastic member; the positioning groove 3041 is arranged at the upper end of the telescopic plate 304, and the positioning groove 3041 is communicated with the guide groove 303, and the bottom of the ball 3031 falls into the positioning groove 3041; the top block B3042 is movably installed on the front side of the telescopic plate 304 through a screw.

[0035] The present application sets a rectangular mounting block 301, and a welding unit 3011 can be installed on the mounting block 301; the welding unit 3011 is set, and the volute fan can be welded by the welding unit 3011; the lifting rod 3012 is set, and the sliding rod 302 can be limited on the mounting block 301 by inserting the bottom sides of the lifting rod 3012 into the slot 3021; ​​the sliding rod 302 is set, and the telescopic plate 304 can be movably installed on the sliding rod 302; the rectangular slot 3021 is set, and the sliding rod 302 can be limited on the mounting block 301 by engaging the slot 3021 with the bottom of the lifting rod 3012; the rectangular top block A302 is set 2. By using it in conjunction with the top block B3042, the welding quality of the volute fan can be inspected; a guide groove 303 is provided, and the sphere 3031 can be movably installed on the sliding rod 302 through the guide groove 303; the sphere 3031 is provided, which can be used to inspect the welding quality of the volute fan; a rectangular telescopic plate 304 is provided, and the top block B3042 can be movably installed on the telescopic plate 304; a circular positioning groove 3041 is provided, and the sphere 3031 can be fixed in the guide groove 303 by dropping the bottom of the sphere 3031 onto the positioning groove 3041; a top block B3042 is provided, and by using it in conjunction with the top block A3022, the welding quality of the volute fan can be inspected.

[0036] The specific usage and function of this embodiment are as follows: In the present invention, Figures 1 to 9As shown, the carrier plate 102 is rotatably installed at the front end of the main body 101, so that the driven gear 1021 at the bottom of the carrier plate 102 is connected to the driving gear 1011 at the inner lower end of the main body 101, and the prefabricated rod 201 is installed on the carrier plate 102 by bolts, and the positioning block 202 with the elastic block 2021 is movably installed inside the prefabricated rod 201, and the two sets of plate structures are assembled on both sides of the cylindrical structure to form a volute fan structure, and then the volute fan structure is placed on the carrier plate 102, and the prefabricated rod 201 passes through the volute fan, and the screw on the prefabricated rod 201 is rotated to adjust the positioning block 2 02 is located, and then the pressing plate 203 is sleeved on the prefabricated rod 201, so that the pressing plate 203 is pressed on the upper end of the volute fan, and the elastic block 2021 is extended into the fixing groove 2031 to fix the pressing plate 203, and the movable frame 1031 is slidably installed on the main body 101, and the mounting block 301 with the welding unit 3011 is movably installed in the movable frame 1031, and the sliding rod 302 is slidably installed on the mounting block 301 through the elastic member, and the lifting rod 3012 is pulled upward to disengage the bottom of the lifting rod 3012 from the card slot 3021 of the sliding rod 302, and the top block at the front end of the sliding rod 302 is A3022 is pressed against the plate structure at the bottom side of the volute fan, and the screw on the telescopic plate 304 is rotated to make the end of the top block B3042 press against the cylindrical structure in the middle of the volute fan, and the ball 3031 is placed in the guide groove 303, so that the bottom of the ball 3031 falls into the positioning groove 3041, and the carrier plate 102 is driven to rotate by the driving gear 1011, and the volute fan is driven to rotate. While rotating, the top block A3022 and the top block B3042 are checked for docking accuracy at the edge of the volute fan, and by observing whether the ball 3031 slides to both sides of the guide groove 303, the ball 3031 is placed in the guide groove 303. On the other hand, if the sphere 3031 slides, the position between the top block A3022 and the top block B3042 moves, which proves that there is a deviation in the assembly of the volute fan. If the sphere 3031 does not move, it proves that the assembly accuracy of the volute fan is good. After the inspection, pull the sliding rod 302 backward, insert the bottom of the lifting rod 3012 into the slot 3021, and limit the sliding rod 302. Then, the welding unit 3011 is used to weld and reinforce the joint between the plate structure and the cylindrical structure. After welding one side, use the same method to weld and fix the other end of the volute fan.

[0037] In this article, there are a few points to note: 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0038] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0039] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A welding device for processing a volute fan, comprising: The mounting mechanism (1) comprises a main body (101) and a driving gear (1011), the main body (101) being of rectangular structure as a whole, and the driving gear (1011) being mounted on the front bottom of the main body (101) via a motor; the mounting mechanism (1) is characterized in that a fixing component (2) is provided on the mounting mechanism (1), and a prefabricated rod (201) of the fixing component (2) is arranged at the top center position of a carrier plate (102) on the front side of the main body (101); the mounting mechanism (1) is provided with a lifting component (3), a mounting block (301) of the lifting component (3) is slidably mounted in a movable frame (1031) at the inner end of the main body (101), and the mounting block (301) is threadedly connected to a screw in the movable frame (1031), and a welding unit (3011) at the outer end of the mounting block (301) extends forward toward the prefabricated rod (201) and the carrier plate (102).

2. The welding equipment for processing a volute fan according to claim 1, characterized in that: The mounting mechanism (1) comprises: a carrier plate (102) and a driven gear (1021); the carrier plate (102) is rotatably mounted on the front side of the main body (101); the driven gear (1021) is fixedly mounted on the lower end of the carrier plate (102), the driven gear (1021) is located at the bottom of the main body (101), and the driven gear (1021) is transmission-connected to the driving gear (1011).

3. The welding equipment for processing a volute fan according to claim 1, characterized in that: The mounting mechanism (1) comprises: an adjusting slot (103) and a movable frame (1031); the adjusting slot (103) is disposed at the inner rear end of the main body (101), and a screw controlled by a motor is rotatably mounted in the adjusting slot (103); the movable frame (1031) is slidably mounted in the adjusting slot (103), and the movable frame (1031) is threadedly connected to the screw in the adjusting slot (103).

4. The welding equipment for processing a volute fan according to claim 1, characterized in that: The fixing component (2) comprises: a prefabricated rod (201) and a slide groove (2011); the prefabricated rod (201) is a cylindrical structure; the slide groove (2011) is arranged inside the prefabricated rod (201), and a screw rod is rotatably installed inside the slide groove (2011).

5. The welding equipment for processing a volute fan according to claim 4, characterized in that: The fixing component (2) comprises: a positioning block (202) and a spring block (2021); the positioning block (202) is slidably mounted in the slide groove (2011), and the positioning block (202) is threadedly connected to a screw in the slide groove (2011), and a rectangular groove is provided inside the positioning block (202); the spring block (2021) is slidably mounted in the rectangular groove in the positioning block (202) via an elastic member, and the spring block (2021) extends out from the interior of the positioning block (202).

6. The welding equipment for processing a volute fan according to claim 5, characterized in that: The fixing component (2) comprises: a pressing plate (203) and a fixing groove (2031); the pressing plate (203) is slidably mounted on the outside of the prefabricated rod (201); the fixing groove (2031) is opened on one side of the upper end of the pressing plate (203), and the fixing groove (2031) is penetrated by the spring block (2021).

7. The welding equipment for processing a volute fan according to claim 1, characterized in that: The lifting component (3) comprises: a mounting block (301), a welding unit (3011) and a lifting rod (3012); the mounting block (301) is a rectangular structure; the welding unit (3011) is movably mounted on the front upper end of the mounting block (301); and the lifting rod (3012) is slidably mounted on the rear side of the mounting block (301).

8. The welding equipment for processing a volute fan according to claim 7, characterized in that: The lifting component (3) comprises: a sliding rod (302), a clamping groove (3021) and a top block A (3022); the sliding rod (302) is slidably mounted at the lower end of the mounting block (301) via an elastic member; the clamping grooves (3021) are symmetrically arranged at the upper ends of both sides of the sliding rod (302), and the two groups of clamping grooves (3021) are engaged with the bottom of the lifting rod (3012); and the top block A (3022) is fixedly mounted at the lower end of the front side of the sliding rod (302).

9. The welding equipment for processing a volute fan according to claim 8, characterized in that: The lifting component (3) comprises: a guide groove (303) and a ball (3031); the guide groove (303) is provided at the front upper end of the sliding rod (302), and the guide groove (303) is wide at both sides and narrow in the middle; the ball (3031) is slidably mounted on the guide groove (303), and the ball (3031) is located in the middle of the guide groove (303).

10. The welding equipment for processing a volute type fan according to claim 9, characterized in that: The lifting component (3) comprises: a telescopic plate (304), a positioning groove (3041) and a top block B (3042); the telescopic plate (304) is slidably mounted on the front side of the sliding rod (302) via an elastic member; the positioning groove (3041) is provided at the upper end of the telescopic plate (304), and the positioning groove (3041) is connected to the guide groove (303), and the bottom of the ball (3031) falls into the positioning groove (3041); the top block B (3042) is movably mounted on the front side of the telescopic plate (304) via a screw rod.

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