A positioning and clamping tool for machining variable diameter flange

Abstract

The present invention discloses a positioning and clamping tool for processing a variable diameter flange, which specifically relates to the field of flange processing equipment, including a processing table, on which a positioning mechanism 1 and a positioning mechanism 2 are arranged, the positioning mechanism 1 includes a rotating driver 1, a rotating disk 1 is arranged on the output end of the rotating driver 1, a clamping assembly 1 is arranged on the output shaft of the rotating disk 1, and the positioning mechanism 2 includes a rotating driver 3, a rotating disk 2 is arranged on the output shaft of the rotating driver 3, and a clamping assembly 2 is arranged on the output shaft of the rotating disk 2. The present invention arranges a material laying mechanism, and an adaptively adjustable limiting seat is arranged at the bottom end of the material laying pipe. The limiting seat can perform adaptive angle adjustment according to the motion trajectory of the eccentric conical segment, so that the bottom of the limiting seat is always in contact with the surface of the eccentric conical segment, ensuring that the flux in the welding area is evenly distributed, improving the stability of the welding process and improving the welding efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of flange processing equipment, and more specifically, to a positioning and clamping tool for processing a variable-diameter flange. Background Art

[0002] A reducer flange is also called a different diameter flange. It has a larger diameter at one end and a smaller diameter at the other end. It can be used to transitionally connect two pipes of different diameters. In water supply and drainage systems, due to terrain changes or design requirements, it is sometimes necessary to adjust the pipe diameter to adapt to different flow requirements or installation conditions. In order to effectively reduce the resistance of the fluid passing through, prevent the occurrence of turbulence, and ensure a smooth transition of the water flow, an eccentric reducer reducer flange is selected as a connector to connect the two ends of pipes of different diameters. The design of the eccentric reducer reducer flange takes into account the principles of fluid mechanics. Through a smooth and gradually changing pipe diameter transition zone, the sudden change in the direction of fluid flow is reduced, making the flow velocity distribution more uniform, thereby reducing energy loss and turbulence. The eccentric reducer reducer flange includes an eccentric reducer tapered section and two flanges. The flanges are fixed to the two ends of the eccentric tapered section by welding.

[0003] In the prior art, when processing a reducer flange, a synchronous expansion mechanism is first used to fix the tapered section from the inside, and then the flange is docked at the end of the tapered section. During welding, in order to protect the molten pool from contamination, stabilize the arc and improve weld formation, flux is laid at the joint between the flange and the eccentric tapered section, and then the flange and the large and small tapered sections are welded together using submerged arc welding. In order to improve welding accuracy, the welding gun is kept stationary, and the flange and the eccentric tapered section are driven to perform circular motion synchronously to complete the welding.

[0004] However, since the eccentric conical section used in the eccentric reducer flange has an asymmetric characteristic, the centers of the flanges at both ends of the eccentric reducer conical section are not concentrically arranged. When the eccentric reducer conical section is driven to move in a circular motion, the flange at the smaller diameter end will move in a circular motion along the rotation axis of the eccentric reducer conical section. The flux in the area to be welded is easy to spill. The existing technology cannot evenly cover the welding area with the flux, and cannot ensure the stability of the welding process, resulting in reduced welding processing efficiency. Summary of the invention

[0005] The present invention provides a positioning and clamping tool for processing a variable diameter flange, and aims to solve the problem that the existing positioning and clamping tool for processing a variable diameter flange cannot evenly cover the welding area with flux, cannot ensure the stability of the welding process, and leads to reduced welding processing efficiency.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a positioning and clamping tool for processing a variable diameter flange, comprising a processing table, a positioning mechanism 1 and a positioning mechanism 2 are arranged on the processing table, the positioning mechanism 1 comprises a rotating driver 1, a rotating disk 1 is arranged on the output end of the rotating driver 1, a clamping assembly 1 is arranged on the output shaft of the rotating disk 1, the positioning mechanism 2 comprises a rotating driver 3, a rotating disk 2 is arranged on the output shaft of the rotating driver 3, a clamping assembly 2 is arranged on the output shaft of the rotating disk 2, and the clamping assembly 1 and the clamping assembly 2 respectively drive the flange 1 and the flange 2 to rotate along their own axes; The processing table is provided with a clamping mechanism, which includes a connecting disk, in which a plurality of linear drive three are arranged, and the movement of the output shaft of the linear drive three is used to fix the eccentric reducing cone section at the center of the connecting disk, and the rotating disk one is arranged concentrically with the connecting disk; A welding mechanism is also provided on the processing table, and the welding mechanism includes a linear drive four. An adapter seat is fixedly provided on the output end of the linear drive four, and a storage box is slidably provided on the adapter seat. A welding gun is provided in the storage box, and a welding area is formed between the output end of the welding gun and the eccentric reducing cone section. The welding area is always located at the upper part of the eccentric reducing cone section. A material laying mechanism is also provided in the storage box, and the material laying mechanism includes a material laying pipe. A limiting seat is rotatably provided at the bottom end of the material laying pipe, and the limiting seat is located above the eccentric reducing cone section. The limiting seat forms a closed temporary storage area by fitting with the surface of the eccentric reducing cone section, and the material laying pipe is used to transport solder to the temporary storage area.

[0007] In a preferred embodiment, the central axis of the output shaft of the rotary driver 1 coincides with the central axis of the rotary disk 1, and the output shaft of the rotary driver 3 is eccentrically disposed with respect to the center of the rotary disk 2.

[0008] In a preferred embodiment, the material laying mechanism further comprises an elastic member 1, which is obliquely arranged between the material laying pipe and the limiting seat, and the limiting seat comprises a partition plate and a baffle, and the partition plate is located at the center position of the bottom end of the material laying pipe.

[0009] In a preferred embodiment, a groove is provided at the bottom of the partition plate, a second elastic member is fixedly disposed in the groove, a sliding rod is slidably disposed in the second elastic member, and a curved surface is provided at the bottom end of the sliding rod.

[0010] In a preferred embodiment, the clamping mechanism includes an auxiliary seat, the auxiliary seat is fixedly arranged in the processing table, the connecting disk is rotatably arranged on the auxiliary seat, a connecting tube is fixedly arranged in the connecting disk, multiple connecting tubes are interconnected, an airbag is fixedly arranged on the connecting tube, and a limiting plate is fixedly arranged on the side of the connecting disk.

[0011] In a preferred embodiment, positioning mechanism one also includes a linear drive one, which is fixedly arranged on the processing table, a fixed frame one is fixedly arranged on the output shaft of the linear drive one, and a rotary drive one is fixedly arranged on the fixed frame one. Positioning mechanism two also includes a linear drive two, which is fixedly arranged on the processing table, a fixed frame two is fixedly arranged on the output shaft of the linear drive two, and a rotary drive three is fixedly arranged on the fixed frame two.

[0012] In a preferred embodiment, a clamping assembly 1 includes a support seat, which is fixedly arranged on a rotating disk 1, a gear 1 is rotatably arranged on the support seat, a guide hole is opened on the gear 1, a sliding seat is slidably arranged on the support seat, a connecting shaft is fixedly arranged on the sliding seat, and the connecting shaft is slidably arranged in a corresponding guide hole, a rotating driver 2 is fixedly arranged on the support seat, a gear 2 is fixedly arranged on the output shaft of the rotating driver 2, the gear 1 is meshed with the gear 2, and a limiting wheel is rotatably arranged on the sliding seat.

[0013] In a preferred embodiment, the welding mechanism further comprises a fixing plate, the fixing plate is fixedly arranged on the processing table, an adjusting seat is slidably arranged on the fixing plate, and the linear drive four is fixedly arranged on the adjusting seat.

[0014] In a preferred embodiment, a circular hole 1 is formed on the fixing frame 1, and the clamping assembly 1 is located in the circular hole 1; a circular hole 2 is formed on the fixing frame 2, and the clamping assembly 2 is located in the circular hole 2.

[0015] In a preferred embodiment, a rotating driver four is fixedly arranged in the auxiliary seat, a transmission wheel is fixedly arranged on the output shaft of the rotating driver four, the connecting disk and the transmission wheel are connected through the same conveyor belt transmission, and a support wheel is rotatably arranged in the auxiliary seat, and the support wheel is rollingly connected to the connecting disk.

[0016] The beneficial effects of the present invention are: 1. The present invention provides a material laying mechanism and an adaptively adjustable limiting seat at the bottom end of the material laying pipe. The limiting seat can perform adaptive angle adjustment according to the motion trajectory of the eccentric conical segment, so that the bottom of the limiting seat is always in contact with the surface of the eccentric conical segment, ensuring uniform distribution of flux in the welding area, improving the stability of the welding process and improving the welding efficiency.

[0017] 2. The present invention arranges a clamping mechanism, positions three pairs of eccentric conical segments through a linear driver, and then expands the airbag by filling the airbag with filling material, thereby achieving surface contact with the eccentric conical segment. Even if the eccentric conical segment has an asymmetric characteristic, the eccentric conical segment can be driven to rotate stably, thereby improving the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a schematic diagram of the three-dimensional structure of the present invention.

[0019] Figure 2 It is a structural schematic diagram of the main view of the processing table of the present invention.

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the linear actuator 1 of the present invention.

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the fixing frame 1 of the present invention.

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of gear 1 of the present invention.

[0023] Figure 6 It is a schematic diagram of the three-dimensional structure of the linear actuator 2 of the present invention.

[0024] Figure 7 It is a schematic diagram of the cross-sectional structure of the connecting disk of the present invention from the front view.

[0025] Figure 8 Schematic diagram of the three-dimensional structure of the linear actuator 4 of the present invention.

[0026] Fig. 9 For the present invention Figure 8 Schematic diagram of the structure of the linear drive from four side views.

[0027] Fig.10 It is a structural schematic diagram of the main view of the material laying pipe of the present invention.

[0028] Fig.11 This is a schematic diagram of the state in which the limiting seat of the present invention is located on the sides of flange plate 1 and flange plate 2.

[0029] Fig.12 It is a schematic cross-sectional structure diagram of the main view of the limiting seat of the present invention.

[0030] Fig.13 It is a schematic diagram of the three-dimensional structure of the variable diameter tapered section of the present invention.

[0031] Fig.14 It is a schematic diagram of the three-dimensional structure of flange plate 1 of the present invention.

[0032] The accompanying drawings are marked as follows: 1, processing table; 2, positioning mechanism 1; 21, linear drive 1; 22, fixed frame 1; 23, rotating drive 1; 24, rotating disk 1; 25, clamping assembly 1; 251, support seat; 252, gear 1; 253, guide hole; 254, sliding seat; 255, connecting shaft; 256, rotating drive 2; 257, gear 2; 258, limiting wheel; 3, positioning mechanism 2; 31, linear drive 2; 32, fixed frame 2; 33, rotating drive 3; 34, rotating disk 2 ;35. Clamping component two;4. Clamping mechanism;41. Auxiliary seat;42. Connecting plate;43. Linear drive three;44. Connecting pipe;45. Airbag;5. Welding mechanism;51. Fixing plate;52. Adjusting seat;53. Linear drive four;54. Adapter seat;55. Storage box;56. Welding gun;6. Material laying mechanism;61. Material laying pipe;62. Limiting seat;63. Elastic part one;64. Sliding rod;65. Elastic part two;71. Eccentric reducing cone section;72. Flange one;73. Flange two. DETAILED DESCRIPTION

[0033] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0034] Refer to the instruction manual Figures 1 to 14 A positioning and clamping tool for processing a variable diameter flange, comprising a processing table 1, on which a positioning mechanism 1 2 and a positioning mechanism 2 3 are arranged, the positioning mechanism 1 2 comprises a rotating driver 1 23, on the output end of the rotating driver 1 23 a rotating disk 1 24 is arranged, on the output shaft of the rotating disk 1 24 a clamping assembly 1 25 is arranged, the positioning mechanism 2 3 comprises a rotating driver 3 33, on the output shaft of the rotating driver 3 33 a rotating disk 2 34 is arranged, on the output shaft of the rotating disk 2 34 a clamping assembly 2 35 is arranged, the clamping assembly 1 25 and the clamping assembly 2 35 respectively drive the flange 1 72 and the flange 2 73 to rotate along their own axes; The processing table 1 is provided with a clamping mechanism 4, which includes a connecting disk 42, in which a plurality of linear drivers 3 43 are arranged, and the movement of the output shaft of the linear driver 3 43 is used to fix the eccentric reducing conical section 71 at the center of the connecting disk 42, and the rotating disk 1 24 is arranged concentrically with the connecting disk 42; The processing table 1 is also provided with a welding mechanism 5, which includes a linear drive 4 53, an adapter seat 54 is fixedly provided on the output end of the linear drive 4 53, a storage box 55 is slidably provided on the adapter seat 54, a welding gun 56 is provided in the storage box 55, a welding area is formed between the output end of the welding gun 56 and the eccentric tapered section 71, and the welding area is always located at the upper part of the eccentric tapered section 71, and a material laying mechanism 6 is also provided in the storage box 55, and the material laying mechanism 6 includes a material laying pipe 61, and the material laying A limiting seat 62 is rotatably provided at the bottom end of the tube 61. The limiting seat 62 is located above the eccentric tapered reducing section 71. The limiting seat 62 forms a closed temporary storage area by fitting with the surface of the eccentric tapered reducing section 71. The material laying tube 61 is used to transport solder to the temporary storage area. The limiting seat 62 is a plate without a bottom structure. The limiting seat 62 contacts the surface of the eccentric tapered reducing section 71. The internal space of the limiting seat 62 will form a closed temporary storage area. Here, the limiting seat 62 includes but is not limited to being set as a hollow rectangular plate.

[0035] The central axis of the output shaft of the rotary driver 1 23 coincides with the central axis of the rotary disk 1 24 , and the output shaft of the rotary driver 3 33 is eccentrically disposed with respect to the center of the rotary disk 2 34 .

[0036] It should be noted that, refer to Fig.13 and Fig.14 The reducing flange includes an eccentric reducing tapered section 71, one end of the eccentric reducing tapered section 71 has a larger diameter and the other end has a smaller diameter, and flange plate 1 72 and flange plate 2 73 are respectively provided at both ends of the eccentric reducing tapered section 71. The overall size of the eccentric reducing tapered section 71 is determined according to the use requirements, and the end of the eccentric reducing tapered section 71 with a smaller diameter has a larger bending degree. During the processing, after flange plate 1 72 and flange plate 2 73 are attached to the two ends of the eccentric reducing tapered section 71, flux is laid on the gap in the area to be welded, and welding is performed by submerged arc welding. During the submerged arc welding process, the welding arc burns under a layer of granular flux covering the welding area, and the arc generates high temperature to instantly melt the flux and fill it into the gap to be welded. Since the flux becomes molten after melting, the welding position needs to be located at the upper part of the eccentric tapered section 71. If the welding position is located at the side or bottom of the eccentric tapered section 71, the molten flux will flow under the action of gravity, affecting the welding quality.

[0037] It should also be noted that the structural components used in the clamping component 25 are exactly the same as those of the clamping component 1 25, the linear drive 3 43 is set as a cylinder, the number of linear drives 3 43 is greater than three, and after starting multiple linear drives 3 43, the output ends of multiple linear drives 3 43 are close to the center origin of the connecting disk 42 for positioning the eccentric reducing cone section 71. When the eccentric reducing cone section 71 is placed in the initial position at the center of the connecting disk 42, the distance moved by the output end of the linear drive 3 43 can be adjusted to ensure that the center axis of the flange 72 coincides with the center axis of the connecting disk 42. As a mature existing technology, no further elaboration is given here.

[0038] Furthermore, a motor and a cylinder are provided in the storage box 55, the output end of the cylinder is fixed to the welding gun 56, the output shaft of the motor is fixed to the cylinder, the motor and the cylinder are respectively used to drive the welding gun 56 to rotate and drive the welding gun 56 to move vertically, and the storage box 55 is also provided with a cylinder for driving the laying pipe 61 to move vertically.

[0039] The implementation scenario is as follows: the eccentric tapered tapered section 71 is placed at the center of the connecting disk 42, and then the linear drive 3 43 is started, and the eccentric tapered tapered section 71 is positioned by moving the output shaft of the linear drive 3 43, so that the middle part of the eccentric tapered tapered section 71 is fixed in the connecting disk 42, and then the flange 1 72 is positioned by the clamping component 1 25, and the flange 2 73 is positioned by the clamping component 2 35, and the clamping component 1 25 and the clamping component 2 35 are driven. Close to the eccentric tapered section 71, the flange 1 72 and the flange 2 73 are respectively fitted with the two ends of the eccentric tapered section 71, and the flange 1 72 and the flange 2 73 are respectively fitted with the two ends of the eccentric tapered section 71, that is, the welding position. At this time, the central axis of the flange 2 73 coincides with the central axis of the connecting plate 42, and then the output end of the linear drive 4 53 drives the adapter seat 54 to move so that the welding gun 56 and the laying pipe 61 are moved to the top of the eccentric tapered section 71. Fig. 9 From the perspective of the embodiment, the material laying pipe 61 is then driven downward to make the limiting seat 62 contact with the surface of the eccentric reducing cone section 71, and the eccentric reducing cone section 71, flange one 72 and flange two 73 are driven to rotate synchronously by driving the clamping assembly 1 25, the clamping assembly 2 35 and the connecting disk 42 to rotate synchronously. First, the contact position of the eccentric reducing cone section 71 and the flange two 73 is welded. Because the eccentric reducing cone section 71 and the flange two 73 make a circular motion along the central axis of the connecting disk 42, the flux is discharged through the bottom end of the material laying pipe 61, the flux falls into the limiting seat 62 and is retained in the limiting seat 62, the eccentric reducing cone section 71 and the flange two 73 rotate counterclockwise, and then the welding gun 56 is started for welding; refer to Fig.13 and Fig.14The end diameter of the eccentric reducing tapered section 71 matching with the flange 1 72 is smaller than the end diameter of the eccentric reducing tapered section 71 matching with the flange 2 73. When the flange 2 73 makes a circular motion along the central axis of the connecting plate 42, the central axis of the flange 1 72 makes a circular motion along the central axis of the flange 2 73. When welding the contact position between the eccentric reducing tapered section 71 and the flange 1 72, the position and height of the welding gun 56 and the laying pipe 61 are properly adjusted according to the moving trajectory of the end with a smaller diameter of the eccentric reducing tapered section 71, so as to ensure that the limiting seat 62 is always in contact with the upper surface of the end with a smaller diameter of the eccentric reducing tapered section 71, and the welding of the gap between the eccentric reducing tapered section 71 and the flange 1 72 is completed by the welding gun 56. Compared with the prior art, the eccentric and asymmetric eccentric reducing cone section 71 can be stably clamped, and the eccentric reducing cone section 71, flange 1 72 and flange 2 73 can be driven to rotate synchronously. Then, the limiting seat 62 is adjusted to make the limiting seat 62 always fit with the surface of the eccentric reducing cone section 71, ensuring that the flux laid on the surface of the eccentric reducing cone section 71 is evenly distributed. Finally, the welding is completed by adjusting the position of the welding gun 56.

[0040] Refer to the instruction manual Fig. 9 and Fig.10 When processing the smaller diameter end of the eccentric reducing tapered section 71, since the flange 72 makes a circular motion around the central axis of the connecting plate 42, in order to ensure that the limiting seat 62 is always in contact with the surface of the eccentric reducing tapered section 71 to avoid uneven laying of the flux, and at the same time to ensure that the flux can be completely laid on the weld, specifically, the laying mechanism 6 also includes an elastic member 63, and the elastic member 63 is obliquely arranged between the laying pipe 61 and the limiting seat 62, and the limiting seat 62 includes a partition plate and a baffle, and the partition plate is located at the center position of the bottom end of the laying pipe 61.

[0041] It should be noted that the elastic member 63 is configured as a spring, the top end of the spring is fixedly disposed on the limiting seat 62 , and the bottom end of the spring is fixedly disposed on the limiting seat 62 .

[0042] It should also be noted that a separation plate is provided at the middle position of the material laying pipe 61, and the separation plate is provided along the length direction of the material laying pipe 61. The separation plate divides the cavity inside the material laying pipe 61 into two flux flow channels. Two electromagnetic gate valves are provided in the material laying pipe 61. The flow and blocking of the flux flow channels are controlled by opening and closing the electromagnetic gate valves. The top end of the material laying pipe 61 is fixedly connected to an auxiliary pipe, and the auxiliary pipe is used to transport flux into the material laying pipe 61.

[0043] In this embodiment, refer to Fig. 9In the process of the smaller diameter end of the eccentric reducing tapered section 71 rotating and deviating, the limiting seat 62 can be tilted and rotated according to the movement trajectory of the smaller diameter end of the eccentric reducing tapered section 71, ensuring that the bottom of the limiting seat 62 is always in contact with the surface of the eccentric reducing tapered section 71 to prevent the flux from falling, and the partition plate and the baffle in the limiting seat 62 form a "T" shape, and according to the change of the welding position of the flange 1 72 and the flange 2 73, the baffle is in contact with the side of the flange 1 72 or the flange 2 73, so that a group of limiting seats 62 are always filled with solder in the weld of the flange 1 72 and the flange 2 73 to avoid interference between the limiting seat 62 and the flange 1 72 or the flange 2 73, refer to Fig. 9 The counterclockwise rotation of the eccentric tapered section 71 can also prevent the welding slag formed by the melting of the flux from remaining at the limiting seat 62 and causing obstruction.

[0044] Refer to the instruction manual Fig.12 Since the curvature of the larger diameter end and the smaller diameter surface of the eccentric reducing cone section 71 are different, if the bottom of the limiting seat 62 is directly in contact with the larger diameter end or the smaller diameter end surface of the eccentric reducing cone section 71, there will be a gap, which will cause the flux in the temporary storage area to easily leak out of the gap, and the flux is stuck in the gap. As the eccentric reducing cone section 71 rotates, it may cause scratches on the surface of the eccentric reducing cone section 71. In order to avoid this phenomenon, specifically, a groove is opened at the bottom of the partition plate, and an elastic member 65 is fixedly arranged in the groove, and a slide rod 64 is slidably arranged in the elastic member 65, and the bottom end of the slide rod 64 is provided with a curved surface.

[0045] It should be noted that the second elastic member 65 includes a cylinder, a spring is fixedly arranged in the cylinder, the bottom end of the spring is fixedly arranged with the top end of the slide rod 64, and the slide rod 64 is slidably arranged in the cylinder.

[0046] It should also be noted that when the slide rod 64 is in contact with the surface of the eccentric reducing conical section 71, the limiting seat 62 is driven downward to move, and the slide rod 64 slides into the cylinder under the action of pressure. The bottom end of the slide rod 64 is always in contact with the surface of the eccentric reducing conical section 71 to prevent the flux from leaking out.

[0047] Refer to the instruction manual Figures 1 to 7Due to the asymmetric characteristics, in order to stably position the eccentric tapered tapered section 71, in the process of driving the eccentric tapered tapered section 71 to rotate, in order to enable the eccentric tapered tapered section 71 to rotate stably and avoid the eccentric tapered tapered section 71 from being offset and affecting the welding quality, specifically, the clamping mechanism 4 includes an auxiliary seat 41, the auxiliary seat 41 is fixedly arranged in the processing table 1, the connecting disk 42 is rotatably arranged on the auxiliary seat 41, a connecting pipe 44 is fixedly arranged in the connecting disk 42, a plurality of connecting pipes 44 are interconnected, an air bag 45 is fixedly arranged on the connecting pipe 44, and a limiting plate is fixedly arranged on the side of the connecting disk 42. A rotating driver 4 is fixedly arranged in the auxiliary seat 41, a transmission wheel is fixedly arranged on the output shaft of the rotating driver 4, the connecting disk 42 and the transmission wheel are connected through the same conveyor belt transmission, a supporting wheel is rotatably arranged in the auxiliary seat 41, and the supporting wheel is rollingly connected with the connecting disk 42.

[0048] It should be noted that the rotary driver 4 is configured as a motor, the transmission wheel is fixedly configured on the output shaft of the motor, the outer surface of the connecting disk 42 is provided with a latching tooth, and the conveyor belt is also provided with meshing teeth, and the engagement of the latching tooth and the meshing tooth realizes the precise transmission of the connecting disk 42. The connecting tube 44 is fixedly connected with a delivery tube, and one end of the delivery tube away from the connecting tube 44 is fixedly connected with a pump, and the pump is used to deliver liquid or gas into the connecting tube 44.

[0049] It should also be noted that when the eccentric reducing cone section 71 is located in the middle of the connecting disk 42, the linear driver three 43 is started, the output shaft of the linear driver three 43 moves to position the eccentric reducing cone section 71, and then gas or liquid is transported to the connecting tube 44 through the delivery pipe. The airbag 45 is filled with gas or liquid and then expands, so that the outer wall of the airbag 45 contacts the eccentric reducing cone section 71, and the limit plate limits the expansion of the airbag 45 to both sides. By setting the airbag 45, the output shaft of the linear driver three 43 and the eccentric reducing cone section 71 are in point contact, and the airbag 45 and the eccentric reducing cone section 71 are changed to surface contact. The surface contact can provide more friction for the eccentric reducing cone section 71, thereby ensuring that the eccentric reducing cone section 71 is prevented from being offset during the process of the connecting disk 42 driving the eccentric reducing cone section 71 to rotate.

[0050] Refer to the instruction manual Figures 3 to 6In order to facilitate the positioning of flange 1 72 and flange 2 73, and to facilitate the adjustment of the positions of flange 1 72 and flange 2 73, specifically, the positioning mechanism 1 2 also includes a linear driver 1 21, the linear driver 1 21 is fixedly arranged on the processing table 1, a fixed frame 1 22 is fixedly arranged on the output shaft of the linear driver 1 21, and a rotary driver 1 23 is fixedly arranged on the fixed frame 1 22. The positioning mechanism 2 3 also includes a linear driver 2 31, the linear driver 2 31 is fixedly arranged on the processing table 1, a fixed frame 2 32 is fixedly arranged on the output shaft of the linear driver 2 31, and a rotary driver 3 33 is fixedly arranged on the fixed frame 2 32. The clamping assembly 1 25 comprises a support seat 251, which is fixedly arranged on the rotating disk 1 24, a gear 1 252 is rotatably arranged on the support seat 251, a guide hole 253 is provided on the gear 1 252, a sliding seat 254 is slidably arranged on the support seat 251, a connecting shaft 255 is fixedly arranged on the sliding seat 254, and the connecting shaft 255 is slidably arranged in the corresponding guide hole 253, a rotating driver 2 256 is fixedly arranged on the support seat 251, a gear 2 257 is fixedly arranged on the output shaft of the rotating driver 2 256, the gear 1 252 is meshed with the gear 2 257, and a limited wheel 258 is rotatably arranged on the sliding seat 254. A circular hole 1 is provided on the fixing frame 1 22, and the clamping assembly 1 25 is located in the circular hole 1, and a circular hole 2 is provided on the fixing frame 2 32, and the clamping assembly 2 35 is located in the circular hole 2.

[0051] It should be noted that the linear drive 1 21 and the linear drive 2 31 are both configured as linear motors, the rotation drive 1 23 and the rotation drive 3 33 are both configured as motors, the rotation drive 1 23 is fixedly disposed on the fixing frame 1 22, the rotation drive 3 33 is fixedly disposed on the fixing frame 2 32, the rotation drive 2 256 is configured as a motor, and the gear 2 257 is fixedly disposed on the output shaft of the motor. An auxiliary shaft is fixedly disposed on the sliding seat 254, and the limiting wheel 258 is rotatably disposed on the auxiliary shaft.

[0052] It should also be noted that the flange 72 is placed on one side of the support seat 251, and the rotation driver 256 is started. The rotation transmission gear 257 of the output shaft of the rotation driver 256 rotates, and the gear 257 is meshed with the gear 252 to drive the gear 252 to rotate. During the rotation of the gear 252, the connecting shaft 255 slides in the guide hole 253, and the connecting shaft 255 drives the sliding seat 254 to slide on the support seat 251. A plurality of limiting wheels 258 approach the central axis of the gear 252, and the flange 72 is positioned through the auxiliary shaft, and then the flange 72 is driven to move horizontally through the movement of the output end of the linear driver 21. Similarly, the flange 73 performs the same operation through the clamping assembly 235 to complete the docking of the eccentric reducing cone section 71, the flange 72 and the flange 73.

[0053] Refer to the instruction manual Figure 1 and Figure 8 During the welding process, in order to facilitate the adjustment of the position of the welding gun 56 and improve the degree of freedom of workpiece processing, specifically, the welding mechanism 5 also includes a fixed plate 51, the fixed plate 51 is fixedly set on the processing table 1, an adjustment seat 52 is slidably set on the fixed plate 51, and a linear drive four 53 is fixedly set on the adjustment seat 52.

[0054] It should be noted that a cylinder is fixedly installed on the fixed plate 51, and the output end of the cylinder is fixedly installed on the adjustment seat 52. The linear drive four 53 is configured as a linear motor. When the cylinder is started, the output shaft of the cylinder drives the adjustment seat 52 to move horizontally on the fixed plate 51. When the linear drive four 53 is started, the output shaft of the linear drive four 53 drives the adapter seat 54 to move horizontally.

[0055] It should also be noted that a motor is fixedly installed in the storage box 55, a transmission tooth is fixedly installed on the output shaft of the motor, a rack is fixedly installed on the adapter seat 54, the transmission tooth is meshed with the rack, and the rotation of the transmission tooth drives the storage box 55 to move vertically along the length direction of the adapter seat 54.

[0056] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims

1. A positioning and clamping tool for machining a variable diameter flange, characterized in that: The processing platform (1) comprises a processing platform (1), wherein a positioning mechanism 1 (2) and a positioning mechanism 2 (3) are arranged on the processing platform (1), wherein the positioning mechanism 1 (2) comprises a rotating driver 1 (23), wherein a rotating disk 1 (24) is arranged on the output end of the rotating driver 1 (23), wherein a clamping assembly 1 (25) is arranged on the output shaft of the rotating disk 1 (24), wherein the positioning mechanism 2 (3) comprises a rotating driver 3 (33), wherein a rotating disk 2 (34) is arranged on the output shaft of the rotating disk 2 (34), wherein a clamping assembly 2 (35) is arranged on the output shaft of the rotating disk 2 (34), wherein the clamping assembly 1 (25) and the clamping assembly 2 (35) respectively drive the flange 1 (72) and the flange 2 (73) to rotate along their own axes; The processing table (1) is provided with a clamping mechanism (4), the clamping mechanism (4) comprising a connecting disk (42), a plurality of linear drive threes (43) being provided in the connecting disk (42), the output shaft of the linear drive threes (43) being moved to fix the eccentric variable diameter conical section (71) at the center of the connecting disk (42), and the rotating disk one (24) being arranged concentrically with the connecting disk (42); The processing table (1) is also provided with a welding mechanism (5), the welding mechanism (5) comprising a linear drive four (53), an adapter seat (54) being fixedly provided on the output end of the linear drive four (53), a storage box (55) being slidably provided on the adapter seat (54), a welding gun (56) being provided in the storage box (55), a welding area being formed between the output end of the welding gun (56) and the eccentric reducing cone section (71), the welding area being always located at the eccentric reducing cone section (71). The storage box (55) is provided with a material spreading mechanism (6) at the upper part of the eccentric tapered section (71). The material spreading mechanism (6) comprises a material spreading pipe (61). A limiting seat (62) is rotatably provided at the bottom end of the material spreading pipe (61). The limiting seat (62) is located above the eccentric tapered section (71). The limiting seat (62) forms a closed temporary storage area by fitting with the surface of the eccentric tapered section (71). The material spreading pipe (61) is used to transport solder to the temporary storage area.

2. The positioning and clamping tool for machining a variable diameter flange according to claim 1, characterized in that: The central axis of the output shaft of the rotary driver 1 (23) coincides with the central axis of the rotary disk 1 (24), and the output shaft of the rotary driver 3 (33) is eccentrically arranged at the center of the rotary disk 2 (34).

3. The positioning and clamping tool for machining a variable diameter flange according to claim 2, characterized in that: The material spreading mechanism (6) further comprises an elastic member 1 (63), wherein the elastic member 1 (63) is arranged obliquely between the material spreading pipe (61) and the limiting seat (62), wherein the limiting seat (62) comprises a partition plate and a baffle plate, wherein the partition plate is located at the center of the bottom end of the material spreading pipe (61).

4. The positioning and clamping tool for machining a variable diameter flange according to claim 3, characterized in that: A groove is provided at the bottom of the partition plate, a second elastic member (65) is fixedly arranged in the groove, a sliding rod (64) is slidably arranged in the second elastic member (65), and a curved surface is provided at the bottom end of the sliding rod (64).

5. The positioning and clamping tool for machining a variable diameter flange according to claim 4, characterized in that: The clamping mechanism (4) comprises an auxiliary seat (41), the auxiliary seat (41) is fixedly arranged in the processing table (1), the connecting disk (42) is rotatably arranged on the auxiliary seat (41), a connecting tube (44) is fixedly arranged in the connecting disk (42), a plurality of connecting tubes (44) are interconnected, an air bag (45) is fixedly arranged on the connecting tube (44), and a limit plate is fixedly arranged on the side of the connecting disk (42).

6. The positioning and clamping tool for machining a variable diameter flange according to claim 5, characterized in that: The positioning mechanism 1 (2) further comprises a linear drive 1 (21), the linear drive 1 (21) being fixedly arranged on the processing table (1), a fixed frame 1 (22) being fixedly arranged on the output shaft of the linear drive 1 (21), and the rotary drive 1 (23) being fixedly arranged on the fixed frame 1 (22). The positioning mechanism 2 (3) further comprises a linear drive 2 (31), the linear drive 2 (31) being fixedly arranged on the processing table (1), a fixed frame 2 (32) being fixedly arranged on the output shaft of the linear drive 2 (31), and the rotary drive 3 (33) being fixedly arranged on the fixed frame 2 (32).

7. The positioning and clamping tool for machining a variable diameter flange according to claim 6, characterized in that: The clamping assembly 1 (25) comprises a support seat (251), the support seat (251) is fixedly arranged on the rotating disk 1 (24), a gear 1 (252) is rotatably arranged on the support seat (251), a guide hole (253) is opened on the gear 1 (252), a sliding seat (254) is slidably arranged on the support seat (251), a connecting shaft (255) is fixedly arranged on the sliding seat (254), and the connecting shaft (255) is slidably arranged in the corresponding guide hole (253), a rotating driver 2 (256) is fixedly arranged on the support seat (251), a gear 2 (257) is fixedly arranged on the output shaft of the rotating driver 2 (256), the gear 1 (252) is meshed with the gear 2 (257), and a limiting wheel (258) is rotatably arranged on the sliding seat (254).

8. The positioning and clamping tool for machining a variable diameter flange according to claim 7, characterized in that: The welding mechanism (5) further comprises a fixing plate (51), wherein the fixing plate (51) is fixedly arranged on the processing table (1), an adjustment seat (52) is slidably arranged on the fixing plate (51), and the linear drive four (53) is fixedly arranged on the adjustment seat (52).

9. The positioning and clamping tool for machining a variable diameter flange according to claim 8, characterized in that: The fixing frame 1 (22) is provided with a circular hole 1, and the clamping assembly 1 (25) is located in the circular hole 1. The fixing frame 2 (32) is provided with a circular hole 2, and the clamping assembly 2 (35) is located in the circular hole 2.

10. The positioning and clamping tool for machining a variable diameter flange according to claim 9, characterized in that: A rotating driver four is fixedly arranged in the auxiliary seat (41), a transmission wheel is fixedly arranged on the output shaft of the rotating driver four, the connecting disk (42) and the transmission wheel are connected to each other through a transmission belt, a supporting wheel is rotatably arranged in the auxiliary seat (41), and the supporting wheel is rollingly connected to the connecting disk (42).

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