Positioning and welding device and method for ion fan housing

Abstract

This invention discloses a positioning and welding device for an ion fan housing. The device includes: a support portion serving as an integral structural frame, on which a positioning portion for positioning the ion fan housing is mounted, and a welding portion for welding and fixing the ion fan housing. The support portion includes a bracket, on which a sliding rod is mounted, with both ends of the sliding rod fixedly mounted on the bracket. A sliding seat is slidably mounted on the sliding rod. Two sets of first drive components outputting along their long axis are fixedly mounted on the bracket. The two sets of first drive components are respectively connected to two corresponding sliding seats and can respectively drive the corresponding sliding seats to slide along the long axis of the bracket on the sliding rod. The positioning and welding device for the ion fan housing provided by this invention uses a clamping plate to move the ion fan housing vertically and uses the maximum stroke position to position the weld seam.

Description

Technical Field

[0001] This invention relates to the field of welding processing technology, and in particular to a positioning welding device for the housing of an ion fan. Background Technology

[0002] The main function of an ion fan is to eliminate static electricity, possessing outstanding static elimination performance and preventing static pollution and damage. It is an ideal device for preventing electrostatic discharge in electronic production lines and for personal static-protected areas such as repair benches. Designed specifically for localized areas, it features small size, light weight, and easy installation. It can be installed in a modular fashion, suitable for various locations. Ion fans are generally classified as tabletop ion fans, horizontal ion fans, suspended ion fans, and miniature ion fans. The casing of ion fans is mostly made of stainless steel or cast iron plates. For ion fans with high requirements for sealing and structural strength, welding is often used to fix the various panels that make up the overall casing.

[0003] Existing technology discloses a positioning device for welding the outer shell of a new energy charging pile (disclosure number: CN223997649U). It includes a first fixed base and a second fixed base, with the second fixed base positioned on one side of the first fixed base. A placement platform is positioned between the first and second fixed bases. A fixed frame is fixedly connected to the front end of the placement platform, and a dual-axis motor is fixedly mounted on the front end of the placement platform. Lead screws are fixedly connected to the output ends of both sides of the dual-axis motor. This positioning device for welding the outer shell of a new energy charging pile, by incorporating components such as the fixed frame, allows the dual-axis motor to be turned, driving the lead screws on both sides to rotate. This causes the externally fitted threaded seats to move towards each other. Simultaneously, the first slider at the bottom of the top clamping block can be guided and moved within a limiting groove, facilitating clamping and positioning according to the width of the charging pile shell. This solves the problem of inconvenience in quickly adjusting and clamping the charging pile shell according to its width during use.

[0004] In existing technologies, after fixing and positioning the outer shell, manual or robotic arms are often used to weld the edge seams. Manual welding relies heavily on the operator's welding experience, and local operational errors can lead to defects in the appearance of the entire product. In addition, the welding speed is slow. Robotic arm welding relies heavily on the use of precision sensors such as visual recognition of the robotic arm, resulting in high production costs.

[0005] Therefore, it is necessary to provide a positioning and welding device for the housing of an ion fan to solve the above-mentioned technical problems. Summary of the Invention

[0006] In order to overcome the defects of the prior art, the present invention provides a positioning and welding device for the shell of an ion fan that can realize the welding of the ion fan shell by the welding torch by using basic mechanical mechanism to limit the position.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows: The positioning and welding device for the outer casing of an ion fan includes: a support part as an integral structural frame, on which a positioning part for positioning the outer casing of the ion fan is installed, and a welding part for welding and fixing the outer casing of the ion fan. The support includes a bracket, on which a slide rod is mounted. Both ends of the slide rod are fixedly mounted on the bracket. A slide seat is slidably mounted on the slide rod. Two sets of first drive components that output along their long axis are fixedly mounted on the bracket. The two sets of first drive components are respectively connected to two slide seats and can drive the corresponding slide seats to slide along the long axis of the bracket on the slide rod. The positioning part includes clamps that are vertically and symmetrically distributed on the upper end of the bracket. The clamps are slidably mounted on the slide. A base plate located in the horizontal direction is fixedly mounted on the lower end of the clamps. The ion fan shell is supported on the base plate. A second drive assembly is also fixedly mounted on the slide. There are two sets of the second drive assemblies. The two sets of second drive assemblies drive the corresponding clamps to move up and down in the vertical direction respectively. The welding part includes a rocker arm, on which a welding assembly is fixedly mounted. The welding assembly includes a mounting block that can rotate around the bracket. The rocker arm drives the welding assembly to rotate and the horizontal displacement of the welding assembly to weld the corner welds in the thickness direction of the ion fan shell located at the upper and lower ends of the bracket. The first drive assembly drives the slide and clamping plate to move horizontally, and constrains the ion fan shell in the vertical plane under the support of the base plate.

[0008] Preferably, the first drive assembly includes a first hydraulic cylinder, one end of which is fixedly mounted on a bracket and parallel to the long axis of the bracket, and the output end of the first hydraulic cylinder is fixedly mounted on a slide.

[0009] Preferably, the slide includes a slide cylinder, which is fixedly installed on both sides of the slide. The slide cylinder has a through hole for the slide rod to pass through and is adapted to it. The slide cylinder is slidably installed on the slide rod.

[0010] Preferably, a slide rail is fixedly installed on the side of the clamping plate away from the ion fan housing. The slide rail is parallel to the long axis of the clamping plate. A slide groove adapted to the slide rail is provided on the slide base, and the slide rail can slide in the slide groove.

[0011] Preferably, the second drive assembly includes a second hydraulic cylinder fixedly mounted on the slide, the clamping plate has a U-shaped cross-section, the width of the inner groove of the clamping plate is consistent with the thickness of the ion blower housing, the base plate is fixedly connected to the output end of the second hydraulic cylinder, and the base plate is fixedly connected to the lower end of the clamping plate.

[0012] Preferably, the welding assembly includes a mounting block with a threaded fixing bolt on it. The fixing bolt secures the welding torch to the mounting block. A slider is fixedly mounted at the lower end of the mounting block. The slider moves the mounting block horizontally and simultaneously moves the nozzle of the welding torch across the weld seam of the ion fan housing to weld the seam.

[0013] Preferably, a lead screw is threaded through and threaded onto the middle of the slider. The two ends of the lead screw are rotatably mounted on supports. A slide bar is fixedly mounted on the support. The rotation of the lead screw causes the slider to slide on the slide bar. A rocker arm perpendicular to the slide bar is fixedly mounted in the middle of the slide bar. A rotating shaft is fixedly mounted on the rocker arm.

[0014] Preferably, a limiting plate is slidably mounted on the slide rod, and a first stop bar is fixedly mounted on the limiting plate perpendicularly to its surface, the axial direction of the first stop bar being parallel to the axial direction of the slide rod.

[0015] A method for positioning and welding the housing of an ion fan, the method comprising: S1: The ion fan casing to be welded is placed vertically on the upper part of the base plate; S2: The first driving component drives the slide block to slide towards the ion fan housing. The slide block drives the clamping plate to move towards the ion fan housing synchronously through the cooperation of the slide rail and the slide groove, so that the left and right clamping plates simultaneously approach and contact the ion fan housing located on the bottom plate. At this time, the displacement of the ion fan housing in three-dimensional space is constrained and the position is fixed. S3: The second drive component pushes the clamping plate and the ion fan housing constrained inside the clamping plate to move upward as a whole. When it moves to the maximum stroke, it stops moving. The mounting block on the slider drives the welding gun on it to sweep across the weld seam and weld. S4: The second drive component pushes the ion fan housing downwards as a whole. When it reaches the maximum stroke, it stops moving. At the same time, the rotating shaft drives the mounting block and the welding gun on it to rotate 180° to the upper end of the bracket and keep it horizontal. The lead screw drives the mounting block and the welding gun on it to sweep across the weld seam at the other end and weld.

[0016] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention uses a clamp to move the outer shell of the ion blower in the vertical direction and uses the maximum stroke position to locate the weld. The entire positioning process is achieved by relying only on the stroke limit of the mechanical structure, without the need for precision electronic components such as vision sensors and displacement sensors, thus reducing production costs. (2) The present invention achieves the effect of the welding torch working at the upper and lower ends of the support by means of a rotating shaft and a rocker arm, thus making one machine with two uses; (3) The clamping plate and the base plate of the present invention are both positioning devices for the outer shell of the ion blower and driving components for moving the outer shell of the ion motor to the welding position, thereby achieving the effect of integrated positioning and welding. Attached Figure Description

[0017] Figure 1 A schematic diagram of the positioning and welding device for the ion fan housing provided by the present invention; Figure 2 A schematic diagram of the structure of the positioning and welding device support and positioning part for the ion fan housing provided by the present invention; Figure 3 A top view of the positioning and welding device support and positioning part for the ion fan housing provided by the present invention; Figure 4 A schematic diagram of the positioning part of the positioning welding device for the ion fan housing provided by the present invention; Figure 5 A schematic diagram of the welding part of the positioning welding device for the ion fan housing provided by the present invention; Figure 6 This is a front view of the welding part of the positioning welding device for the ion fan housing provided by the present invention; Figure 7 A side view of the positioning and welding device for the ion fan housing provided by the present invention; Figure 8 This is a top view of the welding section of the positioning welding device for the ion fan housing provided by the present invention.

[0018] The corresponding names of the reference numerals in the attached drawings are as follows: 10, support part; 11, bracket; 12, slide rod; 121, limiting plate; 122, first stop rod; 13, first hydraulic cylinder; 14, slide seat; 141, slide cylinder; 142, slide groove; 20, positioning part; 21, clamping plate; 211, slide rail; 22, second hydraulic cylinder; 23, base plate; 30, welding part; 31, mounting block; 311, fixing bolt; 32, slider; 33, slide bar; 331, lead screw; 34, rotating shaft; 35, rocker arm. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present invention include, but are not limited to, the following embodiments.

[0020] The ion fan casing is a flat, rectangular shell structure used to house electronic components such as ion generators and fans. During production, it is generally sealed on five sides with an open top. The top opening is sealed after the ion generator and other electronic components are assembled. To improve the structural strength and sealing of the casing, some casings are fixed by welding. This welding refers to welding the seams along the four edges of the ion fan casing along its thickness direction. During processing, corresponding temporary clamps are stamped to provide temporary fixation. The temporarily fixed casing is then further welded in place. The inventor discovered that existing casing welding uses a robotic arm and relies on precision sensors on the arm, resulting in high production costs. However, the ion fan casing and the weld seams themselves have relatively regular shapes, allowing for mechanical positioning of the weld seams and simultaneous welding, which helps reduce production and welding equipment manufacturing costs.

[0021] Example 1: like Figure 1 As shown, the positioning and welding device for the ion fan housing provided by the present invention includes: a support part 10, which provides an installation foundation and structural support for the entire device; a positioning part 20 for clamping and fixing the ion fan housing to be welded in a predetermined position; and a welding part 30 for automatically welding the corner welds of the fixed ion fan housing.

[0022] Please see Figure 1-3 As shown, the support part 10 includes a bracket 11, which is a rectangular frame structure made of stainless steel square tubes. Two sliding rods 12 are symmetrically installed on the upper end of the bracket 11. The sliding rods 12 are long cylindrical with smooth surfaces and are located on the left and right sides of the bracket 11 respectively. The axes of the two sliding rods 12 are parallel to the long axis of the bracket 11. The two ends of each sliding rod 12 are fixedly installed on the bracket 11.

[0023] A slide block 14 is slidably mounted on the slide rod 12. The slide block 14 is a block structure and is slidably positioned between the two slide rods 12. Figure 3 As shown, the slide block 14 includes slide cylinders 141 respectively disposed on its left and right sides. The slide cylinder 141 is a cylindrical component with a through hole in its axial direction for the slide rod 12 to pass through and to be adapted to it. The inner diameter of the slide cylinder 141 is slightly larger than the outer diameter of the slide rod 12, so that the slide cylinder 141 can be sleeved on the slide rod 12 and slide freely along the axial direction of the slide rod 12. The slide block 14 is slidably mounted on the two slide rods 12 through the slide cylinders 141 on both sides, so that the slide block 14 can reciprocate on the slide rods 12 along the long axis direction of the bracket 11.

[0024] A first drive assembly with output along its long axis is fixedly installed on the bracket 11. The first drive assembly includes two sets of first hydraulic cylinders 13. One end of each set of first hydraulic cylinders 13 is symmetrically fixedly installed at the left and right ends of the bracket 11. Hydraulic cylinder seats are fixedly installed at both ends of the bracket 11. The cylinder body of the first hydraulic cylinder 13 is fixedly installed on the hydraulic cylinder seat by bolts. The axial direction of the first hydraulic cylinder 13 is parallel to the long axis of the bracket 11. The output end of the first hydraulic cylinder 13 is fixedly installed on the slide block 14. When the piston rod of the first hydraulic cylinder 13 extends or retracts, it synchronously drives the slide block 14 to slide along the long axis of the bracket 11 on the slide rod 12.

[0025] A limiting plate 121 is installed on the slide rod 12. The limiting plate 121 is a flat plate component located between the end of the slide rod 12 and the slide seat 14. A through hole adapted to the slide rod 12 is opened in the middle of its thickness direction. The limiting plate 121 is sleeved on the slide rod 12 through the through hole and can slide along the slide rod 12. A manual locking component, such as a fastening screw, is installed on the limiting plate 121 to fix the limiting plate 121 on the slide rod 12. A first stop 122 is fixedly installed on the limiting plate 121 perpendicular to its surface. The axis of the first stop 122 is parallel to the axis of the slide rod 12. The limiting plate 121 is used to limit the sliding stroke of the slide seat 14 on the slide rod 12 to prevent the slide seat 14 from moving excessively and interfering with the welded part 30.

[0026] On the other hand, please see Figure 1-5 The positioning part 20 includes two clamping plates 21 vertically and symmetrically distributed on the upper end of the support 11. The clamping plates 21 are symmetrically arranged on the left and right sides of the support 11, respectively. The plates of the clamping plates 21 are parallel to each other, and the cross-section is U-shaped with the opening facing inward. The width of the groove inside the clamping plate 21 is consistent with the thickness of the ion fan shell to be welded, so that the edge of the ion fan shell can be precisely inserted into the U-shaped groove of the clamping plate 21.

[0027] like Figure 4 As shown, a slide rail 211 is fixedly installed on the side of the clamping plate 21 away from the ion fan housing. The slide rail 211 is a long strip-shaped guide rail extending in the vertical direction with a T-shaped cross-section. The slide rail 211 is parallel to the long axis of the clamping plate 21. A groove 142 adapted to the slide rail 211 is provided on the slide base 14. The cross-sectional shape of the groove 142 matches the cross-sectional shape of the slide rail 211. The slide rail 211 is embedded in the groove 142 and can slide in the vertical direction within the groove 142, so that the clamping plate 21 can move up and down in the vertical direction relative to the slide base 14.

[0028] A base plate 23 located in the horizontal direction is fixedly installed at the lower end of the clamping plate 21. The base plate 23 is a flat plate component, and its surface extends in the horizontal direction.

[0029] The base plate 23 is fixedly installed at the bottom of the clamping plate 21. The upper surface of the base plate 23 is the supporting surface. The base plates 23 at the lower ends of the clamping plates 21 on the left and right sides are arranged opposite each other. The upper surfaces of the two base plates 23 are located in the same horizontal plane. The ion fan shell to be welded is supported on the upper surface of the base plate 23, that is, the lower edge of the ion fan shell is placed on the base plate 23. The base plate 23 provides vertical support for the ion fan shell. Since the width of the U-shaped groove of the clamping plate 21 is the same as the thickness of the ion fan shell, the edge of the ion fan shell is stuck in the U-shaped groove of the clamping plate 21, thus being limited in the horizontal direction.

[0030] The second drive assembly includes a second hydraulic cylinder 22 fixedly mounted on the slide block 14. The axis of the second hydraulic cylinder 22 is arranged vertically, and its output end extends upward. The base plate 23 is fixedly connected to the output end of the second hydraulic cylinder 22, that is, the piston rod end of the second hydraulic cylinder 22 is fixedly connected to the lower surface of the base plate 23. Since the clamping plate 21 is slidably mounted on the slide block 14 through the cooperation of the slide rail 211 and the slide groove 142, the action of the second hydraulic cylinder 22 pushes the base plate 23 to move up and down in the vertical direction. The base plate 23 drives the clamping plate 21 fixedly connected to it to move up and down in the vertical direction synchronously.

[0031] Two second hydraulic cylinders 22 are provided, corresponding to the left and right clamping plates 21 respectively. The two second hydraulic cylinders 22 operate synchronously, driving the left and right clamping plates 21 to move up and down synchronously.

[0032] like Figure 1-2 , Figure 6-7 As shown, the welding part 30 includes a mounting block 31 rotatably mounted on the bracket 11. A slider 32 is fixedly mounted on the lower end of the mounting block 31. The slider 32 is a block-shaped component with a threaded hole through it. The mounting block 31 is also provided with a fixing bolt 311 for fixing the welding gun. The fixing bolt 311 is an internal hex bolt, and its screw part is threaded into the threaded hole opened on the mounting block 31. In use, the welding gun is placed in a predetermined position on the mounting block 31, and the fixing bolt 311 is tightened so that the end of the fixing bolt 311 abuts against the body of the welding gun, thereby fixing the welding gun on the mounting block 31. By loosening the fixing bolt 311, the installation angle of the welding gun on the mounting block 31 can be adjusted.

[0033] A lead screw 331 is threaded through and threaded into the threaded hole of the slider 32. The two ends of the lead screw 331 are rotatably mounted on the support, and the support is fixedly mounted on the slide bar 33. One end of the lead screw 331 passes through the support and is fixedly mounted on the drive motor. When the drive motor is started, the lead screw 331 is rotated around its own axis. The upper end face of the slide bar 33 is provided with a guide groove along its length direction. The lower end of the slider 32 is provided with a guide protrusion that matches the guide groove. The guide protrusion is embedded in the guide groove, so that the slider 32 slides along the length direction of the slide bar 33, and the nozzle of the welding gun mounted on the slider 32 sweeps across the weld seam of the ion blower shell and welds the weld seam.

[0034] The upper end of the rocker arm 35 is fixedly connected to the bottom of the slide bar 33 at the lower end of the mounting block 31. A rotating shaft 34 is fixedly installed at the lower end of the rocker arm 35. The rotating shaft 34 is a cylindrical shaft component with its axis direction perpendicular to the long axis direction of the rocker arm 35. The rotating shaft 34 is rotatably installed on one side of the bracket 11. One end of the rotating shaft 34 passes through the bracket 11 and is fixedly installed with a rotary drive motor (not shown in the figure). The output shaft of the rotary drive motor is coaxially fixedly connected to the rotating shaft 34. When the rotary drive motor is started, it can drive the rotating shaft 34 to rotate around its own axis. When the rotating shaft 34 rotates, it drives the rocker arm 35 to swing 180° around the axis of the rotating shaft 34, thereby realizing the position switching of the welding torch between the upper and lower ends of the bracket 11.

[0035] When the ion blower housing is clamped by the positioning part 20 and moved upward to the maximum stroke position, the welding torch head located at the lower end of the bracket 11 is in the same horizontal plane as the weld seam. Through the horizontal movement of the torch head, the welding torch sweeps horizontally to complete the welding of the lower end weld seam of the housing. When the ion blower housing moves downward to the maximum stroke position, the rotating shaft 34 rotates and drives the rocker arm 35 to swing 180°, so that the welding torch rotates from the lower end of the bracket 11 to the upper end of the bracket 11 and remains horizontal. At this time, the position of the welding torch head is exactly aligned with the upper corner weld seam of the ion blower housing. The welding torch sweeps horizontally again to complete the welding of the upper weld seam.

[0036] In use, the first hydraulic cylinders 13 on the left and right sides of the bracket 11 are pushed synchronously, and the two clamping plates 21 on the left and right sides approach the ion fan housing at the same time, so that the edge of the ion fan housing is locked into the U-shaped groove of the clamping plate 21, thereby constraining the horizontal displacement of the ion fan housing. In the vertical direction, the ion fan housing is supported on the base plate 23, thereby limiting the vertical displacement, and the second hydraulic cylinder 22 drives it to move up and down as a whole to cooperate with the welding torch to weld at different height positions. The maximum stroke position of the clamping plate 21 is used to locate the relative position of the weld seam and the welding torch, so that accurate positioning and automatic welding can be achieved without relying on precision sensors such as visual recognition.

[0037] The above embodiments are merely one of the preferred embodiments of the present invention and should not be used to limit the scope of protection of the present invention. Any modifications or refinements made to the main design concept and spirit of the present invention that are not of substantial significance, but solve the same technical problem as the present invention, should be included within the scope of protection of the present invention.

Claims

1. A positioning and welding device for the housing of an ion fan, characterized in that, include: As a support part (10) of the overall structural frame, the support part (10) is equipped with a positioning part (20) for positioning the ion fan housing and a welding part (30) for welding and fixing the ion fan housing. The support part (10) includes a bracket (11), on which a slide rod (12) is mounted. The two ends of the slide rod (12) are respectively fixedly mounted on the bracket (11). A slide seat (14) is slidably mounted on the slide rod (12). Two sets of first drive components that output along their long axis are fixedly mounted on the bracket (11). The two sets of first drive components are respectively connected to the two slide seats (14) and can respectively drive the corresponding slide seats (14) to slide along the long axis of the bracket (11) on the slide rod (12). The positioning part (20) includes clamping plates (21) vertically and symmetrically distributed on the upper end of the bracket (11). The clamping plates (21) are slidably mounted on the slide (14). A base plate (23) located in the horizontal direction is fixedly mounted on the lower end of the clamping plates (21). The ion fan shell is supported on the base plate (23). A second drive assembly is also fixedly mounted on the slide (14). There are two sets of the second drive assembly. The two sets of the second drive assembly drive the corresponding clamping plates (21) to move up and down in the vertical direction respectively. The welding part (30) includes a rocker arm (35), on which a welding assembly is fixedly mounted. The welding assembly includes a mounting block (31) that can rotate around the bracket (11). The rocker arm (35) drives the welding assembly to rotate and the horizontal displacement of the welding assembly to weld the corner welds in the thickness direction of the ion fan shell located at the upper and lower ends of the bracket (11). The first driving assembly drives the slide (14) and the clamping plate (21) to move horizontally, and constrains the ion fan shell in the vertical plane under the support of the base plate (23).

2. The positioning and welding device for the ion fan housing according to claim 1, characterized in that, The first drive assembly includes a first hydraulic cylinder (13), one end of which is fixedly mounted on a bracket (11) and parallel to the long axis of the bracket (11), and the output end of the first hydraulic cylinder (13) is fixedly mounted on a slide (14).

3. The positioning and welding device for the ion fan housing according to claim 2, characterized in that, The slide block (14) includes a slide cylinder (141), which is fixedly installed on both sides of the slide block (14). The slide cylinder (141) has a through hole for the slide rod (12) to pass through and to be adapted to it. The slide cylinder (141) is slidably installed on the slide rod (12).

4. The positioning and welding device for the ion fan housing according to claim 1, characterized in that, A slide rail (211) is fixedly installed on the side of the clamping plate (21) away from the outer shell of the ion blower. The slide rail (211) is parallel to the long axis of the clamping plate (21). A slide groove (142) adapted to the slide rail (211) is provided on the slide base (14). The slide rail (211) can slide in the slide groove (142).

5. The positioning and welding device for the ion fan housing according to claim 1, characterized in that, The second drive assembly includes a second hydraulic cylinder (22) fixedly mounted on a slide (14). The cross-section of the clamping plate (21) is U-shaped. The width of the inner groove of the clamping plate (21) is consistent with the thickness of the ion blower shell. The base plate (23) is fixedly connected to the output end of the second hydraulic cylinder (22), and the base plate (23) is fixedly connected to the lower end of the clamping plate (21).

6. The positioning and welding device for the ion fan housing according to claim 1, characterized in that, The welding assembly includes a mounting block (31), on which a fixing bolt (311) is threaded. The fixing bolt (311) fixes the welding torch on the mounting block (31). A slider (32) is fixedly mounted at the lower end of the mounting block (31). The slider (32) drives the mounting block (31) to move horizontally, and at the same time drives the nozzle of the welding torch to slide over the weld seam of the ion fan housing and weld the weld seam.

7. The positioning and welding device for the ion fan housing according to claim 6, characterized in that, A lead screw (331) is threaded through and threaded into the middle of the slider (32). The two ends of the lead screw (331) are rotatably mounted on the support. A slide bar (33) is fixedly mounted on the support. The lead screw (331) rotates and drives the slider (32) to slide on the slide bar (33). A rocker arm (35) perpendicular to the middle of the slide bar (33) is fixedly mounted. A rotating shaft (34) is fixedly mounted on the rocker arm (35).

8. The positioning and welding device for the ion fan housing according to claim 1, characterized in that, A limiting plate (121) is slidably mounted on the slide rod (12), and a first stop (122) is fixedly mounted on the limiting plate (121) perpendicular to its surface. The axial direction of the first stop (122) is parallel to the axial direction of the slide rod (12).

9. A method for positioning and welding the housing of an ion fan, used in the positioning and welding apparatus for the housing of an ion fan as described in any one of claims 1-8, characterized in that, The method includes: S1: The ion fan casing to be welded is placed vertically on the top of the base plate (23); S2: The first driving component drives the slide (14) to slide towards the ion fan housing. The slide (14) drives the clamping plate (21) to move towards the ion fan housing in sync through the cooperation of the slide rail (211) and the slide groove (142), so that the left and right clamping plates (21) simultaneously approach and contact the ion fan housing located on the bottom plate (23). At this time, the displacement of the ion fan housing in three-dimensional space is constrained and the position is fixed. S3: The second drive component pushes the clamping plate (21) and the ion fan housing constrained inside the clamping plate (21) to move upward as a whole. When it moves to the maximum stroke, it stops moving. The mounting block (31) on the slider (32) drives the welding gun on it to sweep across the weld seam and weld. S4: The second drive component pushes the ion fan housing to move downward as a whole. When it moves to the maximum stroke, it stops moving. At the same time, the rotating shaft (34) drives the mounting block (31) and the welding gun on it to rotate 180° to the upper end of the bracket (11) and keep it horizontal. The lead screw (331) drives the mounting block (31) and the welding gun on it to sweep across the weld seam at the other end and weld.

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