Positioning tool for welding transformer shell

Abstract

The invention discloses a transformer shell welding positioning tool which comprises a workbench, a rotating device and a positioning clamping device, the rotating device is arranged in the workbench, and the positioning clamping device is arranged in the rotating device; a first placing groove is formed in the top end of the workbench, the rotating device comprises a rotating assembly and a first driving assembly, the rotating assembly is arranged in the first placing groove, and the rotating assembly is connected with the positioning clamping device; the first driving assembly is arranged in the workbench and connected with the rotating assembly. The positioning and clamping device comprises a second driving assembly, an adjusting assembly and two positioning and clamping assemblies, the adjusting assembly and the two positioning and clamping assemblies are arranged in the rotating assembly, and the adjusting assembly is connected with the two positioning and clamping assemblies; the second driving assembly is connected with the adjusting assembly. Therefore, multi-angle welding of the transformer shell can be achieved, meanwhile, movement of operators is effectively reduced, welding continuity is guaranteed, and therefore the welding efficiency and quality are effectively improved.

Description

Technical Field

[0001] This application relates to the technical field of transformer manufacturing, and more particularly to a positioning fixture for welding transformer housings. Background Technology

[0002] In the field of transformer manufacturing, the shell is a key structure that protects the core components inside the transformer from damage caused by external environmental interference (such as mechanical collision, dust erosion, humidity, etc.). To ensure the stability of the shell position during the welding process and to avoid welding deviations caused by displacement, welding positioning fixtures are needed to press and fix the shell.

[0003] In related technologies, the positioning and clamping of the housing by the tooling is mostly fixed, that is, after clamping, the housing and the tooling form a rigid connection. Since the transformer housing is usually a multi-faceted structure, different areas need to be worked on during the welding process. The operator needs to move back and forth around the tooling and adjust his own position to adapt to the welding position. This not only increases physical exertion but also prolongs the overall welding time. Moreover, frequent personnel movement can also lead to a decrease in the continuity of welding operations. For example, when welding the corners or joints of the housing, the operator's welding technique may become unstable due to changes in position, which may lead to quality problems such as uneven welds, weld beads, and incomplete welds, increasing the subsequent rework costs. Summary of the Invention

[0004] This application aims to at least partially address one of the technical problems in the related art.

[0005] Therefore, this application proposes a positioning fixture for welding transformer shells, which can effectively reduce operator movement and ensure welding continuity while enabling multi-angle welding of transformer shells, thereby effectively reducing operator physical exertion, shortening welding time, and improving welding efficiency and quality.

[0006] To achieve the above objectives, this application proposes a positioning fixture for welding transformer casings, comprising a worktable, a rotating device, and a positioning clamping device. The rotating device is disposed within the worktable, and the positioning clamping device is disposed within the rotating device. A first placement slot is provided at the top of the worktable. The rotating device includes a rotating component and a first driving component. The rotating component is disposed within the first placement slot and is connected to the positioning clamping device. The first driving component is disposed within the worktable and is connected to the rotating component. The positioning clamping device includes a second driving component, an adjusting component, and two positioning clamping components. The adjusting component and the two positioning clamping components are all disposed within the rotating component, and the adjusting component is connected to each of the two positioning clamping components. The second driving component is disposed within the rotating component and is connected to the adjusting component.

[0007] In addition, the positioning fixture for welding the transformer housing as proposed above in this application may also have the following additional technical features: Furthermore, a support leg is fixedly installed at the bottom of the workbench, and the number of the support legs is four, which are distributed in a rectangular array at the bottom of the workbench.

[0008] Furthermore, a first through groove is provided at the bottom of the first placement groove, a second placement groove is provided on the groove body of the first placement groove, and a third placement groove is provided on the groove body of the second placement groove.

[0009] Furthermore, the first drive assembly includes a gear body, a rotating shaft, and a first motor, wherein the gear body is disposed in the third placement slot, the rotating shaft is fixedly installed at the bottom end of the gear body, and the first motor is fixedly installed at the bottom end of the rotating shaft.

[0010] Furthermore, the rotating assembly includes a rotating disk and a gear ring. The rotating disk is disposed in the first placement groove, and the gear ring is fixedly installed on the outer side wall of the rotating disk. The gear ring is meshed with the gear body.

[0011] Furthermore, a second through groove is provided on the body of the rotating disk, and a scraper is fixedly installed at the bottom end of the rotating disk.

[0012] Furthermore, the second drive assembly includes a drive shaft, a second motor, and a first bevel gear, wherein the drive shaft passes through the rotating disk, the second motor is fixedly mounted on the top end of the drive shaft, and the first bevel gear is fixedly mounted on the bottom end of the drive shaft.

[0013] Furthermore, the adjusting assembly includes a bidirectional threaded rod and a second bevel gear. The bidirectional threaded rod is disposed inside the rotating disk, and the second bevel gear is fixedly mounted on the rod body of the bidirectional threaded rod. The second bevel gear meshes with the first bevel gear.

[0014] Furthermore, the positioning and clamping assembly includes a threaded sleeve plate and a positioning and clamping plate. The threaded sleeve plate is disposed in the second through groove and is threadedly connected to the bidirectional threaded rod. The positioning and clamping plate is fixedly installed on the top end of the threaded sleeve plate.

[0015] Compared with the prior art, the beneficial effects of this application are as follows: 1. With the cooperation of the first drive component and the rotating component, the first motor drives the rotating shaft to rotate. Through the meshing transmission of the gear body and the gear ring, the rotating disk and the positioning clamping device above can be driven to rotate as a whole. The operator does not need to move back and forth around the tooling or frequently adjust the position. The welding operation of multiple sides of the transformer shell can be easily completed, which reduces the physical exertion of the operator, avoids welding interruption caused by personnel movement, improves the continuity of welding operation, and shortens the overall welding time.

[0016] 2. The scraper fixed at the bottom of the rotating disk rotates synchronously with the rotating disk, which can scrape off the welding slag that falls into the first placement groove of the worktable in real time, and discharge the welding slag out of the tooling along the first through groove, avoiding the accumulation of welding slag in the groove, saving the step of manually cleaning welding slag, reducing the difficulty of tooling maintenance and cleaning, and also preventing the accumulated welding slag from scratching the surface of the shell and causing damage during clamping or rotation.

[0017] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 A schematic diagram of the overall structure of the positioning fixture for welding the transformer housing in this application; Figure 2 A cross-sectional view of the worktable for the positioning fixture used for welding the transformer housing in this application; Figure 3 A schematic diagram of the workbench structure for the positioning fixture used in welding the transformer housing of this application; Figure 4 A schematic diagram of the rotating device structure of the positioning fixture for welding the transformer shell of this application; Figure 5 For this application Figure 4 Enlarged view of point A in the middle; Figure 6 A schematic diagram of the positioning and clamping device structure for the positioning fixture used in welding the transformer shell according to this application; Figure 7 For this application Figure 6 Enlarged view of section B in the middle.

[0019] As shown in the figure: 100, worktable; 101, support leg; 102, first placement slot; 103, first through slot; 104, second placement slot; 105, third placement slot; 200, rotating device; 210, first drive assembly; 211, first motor; 212, rotating shaft; 213, gear body; 220, rotating assembly; 221, rotating disk; 222, gear ring; 223, second through slot; 224, scraper; 300, positioning and clamping device; 310, second drive assembly; 311, second motor; 312, transmission shaft; 313, first bevel gear; 320, adjusting assembly; 321, bidirectional threaded rod; 322, second bevel gear; 330, positioning and clamping assembly; 331, threaded sleeve plate; 332, positioning and clamping plate. Detailed Implementation

[0020] Embodiments of this application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. Rather, embodiments of this application include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0021] The positioning fixture for welding the transformer housing according to an embodiment of this application will be described below with reference to the accompanying drawings.

[0022] like Figures 1-7 As shown, the positioning fixture for welding the transformer housing in this embodiment of the application may include a worktable 100, a rotating device 200, and a positioning clamping device 300.

[0023] The rotating device 200 is installed inside the worktable 100, and the positioning and clamping device 300 is installed inside the rotating device 200.

[0024] The top of the workbench 100 is provided with a first placement slot 102, and the rotating device 200 includes a rotating component 220 and a first driving component 210.

[0025] The rotating component 220 is disposed in the first placement slot 102 and is connected to the positioning clamping device 300. The first driving component 210 is disposed in the worktable 100 and is connected to the rotating component 220.

[0026] The positioning and clamping device 300 includes a second drive assembly 310, an adjustment assembly 320, and two positioning and clamping assemblies 330.

[0027] The adjustment component 320 and the two positioning clamping components 330 are both disposed within the rotating component 220, and the adjustment component 320 is connected to the two positioning clamping components 330 respectively. The second driving component 310 is disposed within the rotating component 220, and the second driving component 310 is connected to the adjustment component 320.

[0028] Specifically, when welding the transformer shell, personnel place the transformer shell to be welded on the rotating component 220 of the rotating device 200, ensuring that the shell is initially in a suitable position on the rotating component 220 to prepare for subsequent clamping. Then, the second drive component 310 of the positioning and clamping device 300 is activated. The second drive component 310 drives the connected adjusting component 320 to operate. Since the adjusting component 320 is connected to two positioning and clamping components 330 respectively, the adjusting component 320 drives the two positioning and clamping components 330 to move closer to each other during operation until the two positioning and clamping components 330 are in close contact with the transformer shell, completing the positioning, clamping, and fixing of the shell. When welding the transformer shell at different angles is required, the first drive component 210 of the rotating device 200 is activated. Component 210 drives the connected rotating component 220 to rotate within the first placement slot 102 at the top of the worktable 100. Since the positioning clamping device 300 is located inside the rotating component 220 and the rotating component 220 is connected to the positioning clamping device 300, the rotating component 220 rotates synchronously, driving the positioning clamping device 300 and the clamped transformer housing to rotate until the housing is adjusted to the required welding angle. The operator can then perform welding operations at the corresponding angle. After the transformer housing is welded, the second drive component 310 of the positioning clamping device 300 is restarted. The second drive component 310 drives the adjusting component 320 to rotate in the opposite direction. The adjusting component 320 drives the two positioning clamping components 330 to move away from each other, releasing the clamping of the housing. Subsequently, the operator removes the welded housing from the rotating component 220.

[0029] In one embodiment of this application, such as Figure 2 and Figure 3 As shown, four support legs 101 are fixedly installed at the bottom of the workbench 100. The four support legs 101 are arranged in a rectangular array at the bottom of the workbench 100.

[0030] Furthermore, a first through groove 103 is provided at the bottom end of the first placement groove 102, a second placement groove 104 is provided on the groove body of the first placement groove 102, and a third placement groove 105 is provided on the groove body of the second placement groove 104.

[0031] Specifically, the first placement groove 102 is circular in shape, the first placement groove 102 has a second placement groove 104 on its body, the second placement groove 104 has an annular cross-section, the second placement groove 104 has a third placement groove 105 on its body, and the third placement groove 105 has a circular cross-section.

[0032] In one embodiment of this application, such as Figure 4 and Figure 5 As shown, the first drive assembly 210 includes a gear body 213, a rotating shaft 212, and a first motor 211.

[0033] The gear body 213 is disposed in the third placement slot 105, the rotating shaft 212 is fixedly installed at the bottom end of the gear body 213, and the first motor 211 is fixedly installed at the bottom end of the rotating shaft 212.

[0034] Furthermore, the rotating assembly 220 includes a rotating disk 221 and a gear ring 222. The rotating disk 221 is disposed in the first placement groove 102, and the gear ring 222 is fixedly installed on the outer side wall of the rotating disk 221. The gear ring 222 is meshed with the gear body 213.

[0035] Furthermore, a second through groove 223 is provided on the disc body of the rotating disk 221, and a scraper 224 is fixedly installed at the bottom end of the rotating disk 221.

[0036] Specifically, the rotating component 220 achieves angle adjustment through meshing transmission with the first driving component 210, thereby driving the housing to rotate. The rotating disk 221 is set in the first placement groove 102, and the gear ring 222 fixed on its outer wall forms a meshing connection with the gear body 213 of the first driving component 210. When the gear body 213 rotates under the drive of the first motor 211, the power is transmitted to the gear ring 222 through the meshing action between the teeth, so that the gear ring 222 drives the rotating disk 221 to make circumferential motion along the groove of the first placement groove 102. Since the positioning clamping device 300 is set on the rotating disk 221 and the positioning clamping device 300 has completed the clamping and fixing of the transformer housing, the rotation of the rotating disk 221 will synchronously drive the housing to rotate, thereby realizing the flexible adjustment of the welding angle of the housing and meeting the multi-directional welding requirements.

[0037] While rotating the housing, the rotating disk 221 simultaneously scrapes and discharges the welding slag. The welding slag generated during the welding process will naturally fall to the bottom of the first placement groove 102. The scraper 224 fixedly installed at the bottom of the rotating disk 221 rotates synchronously with the rotating disk 221. The scraper 224 is in close contact with the bottom of the first placement groove 102. During the rotation, it can scrape the welding slag accumulated at the bottom of the groove. When the welding slag is scraped to the position of the first through groove 103 at the bottom of the first placement groove 102, it will be discharged from the worktable 100 through the first through groove 103. At the same time, the second through groove 223 opened on the rotating disk 221 corresponds to the position of the first through groove 103, which can prevent the welding slag from accumulating on the surface of the rotating disk 221 and further assist the welding slag to be discharged through the first through groove 103, realizing the automatic cleaning of welding slag.

[0038] In one embodiment of this application, such as Figure 2 , Figure 6 and Figure 7 As shown, the second drive assembly 310 includes a drive shaft 312, a second motor 311, and a first bevel gear 313.

[0039] The drive shaft 312 passes through the rotating disk 221, the second motor 311 is fixedly installed at the top of the drive shaft 312, and the first bevel gear 313 is fixedly installed at the bottom of the drive shaft 312.

[0040] Furthermore, the adjusting assembly 320 includes a bidirectional threaded rod 321 and a second bevel gear 322. The bidirectional threaded rod 321 is disposed inside the rotating disk 221, and the second bevel gear 322 is fixedly mounted on the rod body of the bidirectional threaded rod 321. The second bevel gear 322 is meshed with the first bevel gear 313.

[0041] Furthermore, the positioning and clamping assembly 330 includes a threaded sleeve plate 331 and a positioning and clamping plate 332. The threaded sleeve plate 331 is disposed in the second through groove 223 and is threadedly connected to the bidirectional threaded rod 321. The positioning and clamping plate 332 is fixedly installed on the top of the threaded sleeve plate 331.

[0042] Specifically, the second motor 311 is fixed to the top of the transmission shaft 312. After being powered on, the output shaft of the second motor 311 rotates, directly driving the transmission shaft 312, which is fixed to it, to rotate synchronously (the transmission shaft 312 passes through the rotating disk 221 and is rotatably connected to the rotating disk 221 through a bearing, ensuring that the transmission shaft 312 only rotates on its own and does not deviate with the rotating disk 221). As the transmission shaft 312 rotates, the first bevel gear 313 fixed to its bottom end rotates synchronously, transmitting the power of the second motor 311 to the adjustment component 320.

[0043] The second bevel gear 322 of the adjusting component 320 is fixed to the body of the bidirectional threaded rod 321 and meshes with the first bevel gear 313 of the second driving component 310. The horizontal rotation of the first bevel gear 313 is converted into the vertical rotation of the second bevel gear 322 through bevel gear meshing transmission, thereby driving the bidirectional threaded rod 321 to rotate in the rotating disk 221.

[0044] The bidirectional threaded rod 321 has two threaded grooves with opposite directions of rotation, and the two threaded grooves are symmetrically distributed. When the bidirectional threaded rod 321 rotates, it can simultaneously drive the positioning and clamping assemblies 330 on both sides to make linear movements that move closer or further away from each other, providing a transmission basis for synchronous clamping or releasing the housing.

[0045] The threaded sleeve 331 of the positioning and clamping assembly 330 is disposed in the second through groove 223 of the rotating disk 221 and is threadedly connected to the threaded groove of the bidirectional threaded rod 321. Since the groove width of the second through groove 223 is adapted to the width of the threaded sleeve 331, the threaded sleeve 331 can be restricted from rotating with the bidirectional threaded rod 321, and is only allowed to move in a straight line along the second through groove 223. When the bidirectional threaded rod 321 rotates, the two reverse threaded grooves drive the threaded sleeves 331 on both sides to move closer synchronously.

[0046] The top of the threaded sleeve 331 is fixedly connected to the positioning clamping plate 332. As the threaded sleeve 331 approaches, the positioning clamping plate 332 moves synchronously toward the shell until the positioning clamping plates 332 on both sides are tightly fitted with the outer wall of the shell, thus completing the clamping and fixing. Because the threaded sleeves 331 on both sides move symmetrically along the bidirectional threaded rod 321, it can ensure that the shell is always in the center of the rotating disk 221 when it is clamped, providing a precise positioning reference for subsequent welding.

[0047] If it is necessary to release the housing, simply control the second motor 311 to reverse, drive the bidirectional threaded rod 321 to rotate in the opposite direction, so that the threaded sleeves 331 on both sides move away from the positioning clamping plate 332 in sync, and the clamping can be released.

[0048] In summary, the positioning fixture for welding the transformer housing according to the embodiments of this application can effectively reduce operator movement and ensure welding continuity while achieving multi-angle welding of the transformer housing, thereby effectively reducing operator physical exertion, shortening welding time, and improving welding efficiency and quality.

[0049] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0050] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0051] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A positioning fixture for welding transformer housings, characterized in that, It includes a worktable, a rotating device, and a positioning and clamping device, among which, The rotating device is disposed inside the worktable, and the positioning and clamping device is disposed inside the rotating device; The top of the worktable is provided with a first placement slot, and the rotating device includes a rotating component and a first driving component, wherein, The rotating component is disposed in the first placement slot and is connected to the positioning clamping device; The first drive component is disposed within the worktable, and the first drive component is connected to the rotary component; The positioning and clamping device includes a second drive assembly, an adjustment assembly, and two positioning and clamping assemblies, wherein... The adjustment component and the two positioning clamping components are both disposed within the rotating component, and the adjustment component is connected to the two positioning clamping components respectively. The second drive component is disposed within the rotating component and is connected to the adjusting component.

2. The positioning fixture for welding transformer housings according to claim 1, characterized in that, The bottom of the workbench is fixedly equipped with four support legs, which are arranged in a rectangular array at the bottom of the workbench.

3. The positioning fixture for welding the transformer housing according to claim 2, characterized in that, The bottom end of the first placement slot is provided with a first through slot, the body of the first placement slot is provided with a second placement slot, and the body of the second placement slot is provided with a third placement slot.

4. The positioning fixture for welding the transformer housing according to claim 3, characterized in that, The first drive assembly includes a gear body, a rotating shaft, and a first motor, wherein, The gear body is disposed in the third placement slot, the rotating shaft is fixedly installed at the bottom end of the gear body, and the first motor is fixedly installed at the bottom end of the rotating shaft.

5. The positioning fixture for welding the transformer housing according to claim 4, characterized in that, The rotating assembly includes a rotating disk and a gear ring. The rotating disk is disposed in the first placement groove, and the gear ring is fixedly installed on the outer side wall of the rotating disk. The gear ring is meshed with the gear body.

6. The positioning fixture for welding transformer housing according to claim 5, characterized in that, The rotating disk has a second through groove on its body, and a scraper is fixedly installed at the bottom of the rotating disk.

7. The positioning fixture for welding transformer housing according to claim 5, characterized in that, The second drive assembly includes a drive shaft, a second motor, and a first bevel gear, wherein, The drive shaft passes through the rotating disk, the second motor is fixedly installed at the top of the drive shaft, and the first bevel gear is fixedly installed at the bottom of the drive shaft.

8. The positioning fixture for welding transformer housing according to claim 7, characterized in that, The adjusting assembly includes a bidirectional threaded rod and a second bevel gear. The bidirectional threaded rod is disposed inside the rotating disk, and the second bevel gear is fixedly mounted on the rod body of the bidirectional threaded rod. The second bevel gear meshes with the first bevel gear.

9. The positioning fixture for welding transformer housing according to claim 8, characterized in that, The positioning and clamping assembly includes a threaded sleeve plate and a positioning and clamping plate. The threaded sleeve plate is disposed in the second through groove and is threadedly connected to the bidirectional threaded rod. The positioning and clamping plate is fixedly installed on the top of the threaded sleeve plate.

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