Automatic flanging machine

Abstract

The present invention discloses an automatic flanging machine, which belongs to the technical field of mechanical processing equipment. It mainly includes a clamping mechanism and a flanging mechanism arranged on a workbench, the clamping mechanism includes a transmission mechanism and a cutting mechanism, the transmission mechanism includes an adaptive roller and a driven roller, the cutting mechanism includes a bearing seat, a lower pressing table and a cutting blade, the lower pressing table is movably arranged above the bearing seat, the cutting blade is movably arranged on one side of the bearing seat, the flanging mechanism includes a bearing assembly and a flanging assembly, the bearing assembly includes a base arranged on the flanging assembly, the flanging assembly includes a longitudinal feed table, a transverse feed table and a flanging roller group, the flanging roller group is arranged on the base, and the flanging roller group includes a first forming roller, a second forming roller, a shaping roller and a circular cutting roller that are rotatably arranged on the base. The automatic flanging machine of the present invention can automatically flanging a silicone hose by cold extrusion, thereby improving safety and having a good flanging effect.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing equipment, and in particular to an automatic flanging machine. Background Art

[0002] Silicone hoses are widely used, such as connecting pipes in precision instruments such as analyzers. In order to improve the connection strength between the hose and the equipment interface, the pipe mouth needs to be flanging, but the silicone hose has good toughness, and the flanging shape cannot be maintained by directly cold extruding the hose through an extrusion die. Therefore, most of the hot flanging equipment is used to flanging silicone hoses. The silicone hoses to be processed are extruded in a high temperature environment, but the hot flanging equipment is dangerous and can easily cause burns, and the degree of automation needs to be improved.

[0003] It is necessary to provide an automatic flanging machine to solve the above problems. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an automatic flanging machine, so that the silicone hose can be automatically flanging by cold extrusion, thereby improving the safety and achieving a good flanging effect.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solution: an automatic flanging machine, used for flanging a pipe to be processed, comprising a workbench, a bearing plate arranged on the workbench, and a longitudinal guide rail arranged on the workbench; the automatic flanging machine also includes a transmission mechanism, a cutting mechanism and a flanging mechanism arranged on the workbench, the transmission mechanism includes a mounting plate, an adaptive roller and a driven roller, the adaptive roller and the driven roller are arranged on the mounting plate, the cutting mechanism is arranged on the bearing plate at the same side as the transmission mechanism, and the cutting mechanism is arranged on the bearing plate. The shearing mechanism includes a bearing seat, a pressing table and a cutting blade, wherein the pressing table is movably arranged above the bearing seat, and the cutting blade is movably arranged on one side of the bearing seat, the flanging mechanism includes a bearing assembly and a flanging assembly, the bearing assembly includes a base and a transverse feed table, the flanging assembly includes a longitudinal feed table and a flanging roller group, the longitudinal feed table is slidably arranged on the longitudinal guide rail, the transverse feed table is slidably arranged on the longitudinal feed table, the flanging roller group is arranged on the base, and the flanging roller group includes a first forming roller, a second forming roller, a shaping roller and a circular cutting roller.

[0006] Furthermore, the transmission mechanism also includes a transmission motor, and the output end of the transmission motor is connected to the adaptive roller.

[0007] Furthermore, the cutting mechanism also includes a cutting motor arranged on the bearing seat.

[0008] Furthermore, a driving shaft is provided on the output shaft of the cutting motor, and a roller corresponding to the cutting blade is provided at the end of the driving shaft and deviated from the central axis of the driving shaft.

[0009] Furthermore, the cutting mechanism also includes a vertical feeding motor, and the vertical feeding motor is transmission-connected to the lower pressing table.

[0010] Furthermore, the longitudinal feed platform is provided with a transverse guide rail perpendicular to the longitudinal guide rail, and the transverse feed platform is mounted on the transverse guide rail.

[0011] Furthermore, the transverse feed table is also provided with a flanging motor, and the flanging motor realizes torque transmission with the flanging roller group through gear transmission.

[0012] Furthermore, a first cone is provided on the end surface of the first forming roller, and the cone angle of the first cone is 60°.

[0013] Furthermore, a second cone is provided on the end surface of the second forming roller, and the cone angle of the second cone is 120°.

[0014] Furthermore, the ends of the first forming roller, the second forming roller, the shaping roller and the circular cutting roller are all provided with guide cylinders.

[0015] Compared with other methods, the present invention has the following beneficial technical effects: an automatic flanging machine of the present invention is provided with a transfer mechanism for transferring pipe fittings, a cutting mechanism for clamping and cutting pipe fittings and a flanging mechanism for extruding and flanging pipe fittings on a working table of the flanging machine; the transfer mechanism comprises an adaptive roller and a driven roller arranged closely to each other, which can transfer and transport the pipe fittings located between the adaptive roller and the driven roller to the cutting mechanism; the cutting mechanism comprises a bearing seat and a lower pressing table movably arranged above the bearing seat, which can clamp and fix the pipe fittings; a cutting blade for cutting the pipe fittings is slidably arranged on one side of the bearing seat; the flanging mechanism comprises a flanging assembly, a flanging roller group is provided in the flanging assembly, the flanging roller group comprises a rotatable first forming roller, a second forming roller, a shaping roller and a circular cutting roller, and the pipe fittings are small-sized by the first forming roller. The first flanging with an inclination angle is further enlarged by the second forming roller, and finally the flanging of the pipe is extruded into a final flanging perpendicular to the side wall of the pipe by the shaping roller, so that the pipe is distributedly extruded by the first forming roller, the second forming roller and the shaping roller to avoid the stress concentration of the extrusion force causing the pipe to rupture, and multiple extrusions in steps can reduce the toughness of the deformed part of the pipe, so that the flanging part can be maintained, and the rotating extrusion flanging roller group can play a role similar to reaming on the pipe, so that the pipe wall is not easy to rupture due to stress concentration, and the friction between the rotating roller group and the pipe will heat up the pipe, which is beneficial to the deformation of the pipe and ensures the quality and forming effect of the flanging. The automatic flanging machine of the present invention not only has a high degree of automation and a good flanging effect, but also does not cause the risk of scalding compared with hot flanging. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0017] In the figure: Figure 1 It is a three-dimensional structural schematic diagram of an automatic flanging machine of the present invention;

[0018] Figure 2 for Figure 1 An enlarged schematic diagram of area A in the automatic flanging machine;

[0019] Figure 3 for Figure 1 A schematic diagram of the structure of a transfer mechanism and a cutting mechanism in an automatic flanging machine;

[0020] Figure 4 for Figure 3 An enlarged schematic diagram of area B in the cutting mechanism;

[0021] Figure 5 for Figure 4 Schematic diagram of the structure after removing the cutting blade;

[0022] Figure 6 for Figure 1 The back stereogram of the automatic flanging machine (after removing the supporting vertical plate);

[0023] Figure 7 for Figure 6 A front view of

[0024] Figure 8 for Figure 1 Schematic diagram of the structure of the flanging roller group in the automatic flanging machine;

[0025] Fig. 9 for Figure 8 Enlarged schematic diagram of the middle C area;

[0026] Fig.10 for Figure 8 Schematic diagram of the explosion structure;

[0027] Fig.11 For along Figure 8 A longitudinal cross-sectional view of

[0028] Fig.12 for Fig.11 A magnified schematic diagram of the middle D area;

[0029] In the figure:

[0030] 100. Workbench; 101. Load-bearing vertical plate; 102. Longitudinal guide rail; 103. Fourth motor seat; 104. Longitudinal bearing seat.

[0031] 11. Transmission mechanism; 110. Mounting plate; 1101. Driven roller; 1102. Mandrel; 1103. First spring seat; 111. Feeding tube; 112. Connecting tube; 113. Self-adaptive roller; 114. Swinging plate; 1141. Second spring seat; 115. Transmission motor; 116. Elastic member.

[0032] 12. Cutting mechanism; 120. Supporting seat; 1201. First clamping block; 12011. Groove; 121. Pressing table; 1210. Second clamping block; 1211. First lead screw nut; 122. Cutting motor; 1221. Driving shaft; 1222. Roller; 123. Cutting blade; 1231. Slide; 124. Vertical feeding motor; 1241. First motor seat; 1242. First driving pulley; 125. Vertical lead screw; 1251. First driven pulley.

[0033] 2. Flanging mechanism.

[0034] 21. Carrying assembly; 210. Base; 2101. Clamping groove; 2102. Oblique split clamping head; 2103. Threaded through hole; 2104. Placement groove; 2105. Positioning groove; 211. Limiting body; 2111. Stud body; 2112. Conical surface; 212. Fastening screw; 213. Horizontal feed table; 2131. Block; 21311. Oblique split clamping groove; 2132. Positioning protrusion; 2133. Threaded blind hole.

[0035] 22. Flanging assembly; 220. Flanging roller assembly; 2201. First forming roller; 22011. First cone; 22012. First gear; 2202. Second forming roller; 22021. Second cone; 22022. Second gear; 2203. Forming roller; 22031. Extrusion plane; 22032. Third gear; 2204. Circular cutting roller; 22041. Circular cutting knife; 22042. Fourth gear; 2205. Guide cylinder; 221. Longitudinal feed table; 22 11. Transverse guide rail; 2212. Second motor seat; 2213. Second lead screw nut; 222. Longitudinal feed motor; 2221. Second drive pulley; 223. Longitudinal lead screw; 2231. Second driven pulley; 224. Third motor seat; 2241. Third lead screw nut; 225. Driven gear; 226. Flanging motor; 2261. Drive gear; 227. Transverse feed motor; 2271. Third drive pulley; 228. Transverse lead screw; 2281. Third driven pulley. DETAILED DESCRIPTION

[0036] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention.

[0037] like Figure 1 As shown, the automatic flanging machine of this embodiment includes: a workbench 100 located at the bottom and serving as a load-bearing device, a load-bearing vertical plate 101 fixed on the workbench 100, a transfer mechanism 11 installed on the load-bearing vertical plate 101, a cutting mechanism 12, and a flanging mechanism 2 arranged on the workbench 100 and opposite to the cutting mechanism 12; the transfer mechanism 11 is used for transferring the pipe to be processed, the cutting mechanism 12 is used for fixing and cutting the pipe to be processed, and the flanging mechanism 2 is used for flanging the pipe fixed by the cutting mechanism 12.

[0038] The pipe to be processed referred to in this embodiment is a silicone hose but is not limited to a silicone hose. It is easy to understand that the flanging machine shown in this embodiment can also perform flanging processing on similar pipes with plastic deformation capabilities.

[0039] like Figure 3 and 6 As shown, the transfer mechanism 11 includes a mounting plate 110, a feed tube 111 fixedly mounted on the outside of the mounting plate 110, a connecting tube 112 arranged colinearly with the feed tube 111, a driven roller 1101 arranged on the mounting plate 110, a transfer motor 115 movably arranged on the other side of the mounting plate 110, and an adaptive roller 113 arranged on the transfer motor 115.

[0040] The mounting plate 110 is fixedly mounted on one side of the supporting vertical plate 101 , and the feeding pipe 111 and the connecting pipe 112 are both mounted on the same side of the mounting plate 110 by means of screw fastening.

[0041] refer to Figure 6 and 7 As shown, a core shaft 1102 is fixedly arranged on the mounting plate 110 and on the other side facing away from the feeding tube 111, and a first spring seat 1103 is fixedly arranged on the mounting plate 110 and at a position opposite to the core shaft 1102. A swing plate 114 is rotatably arranged on the core shaft 1102, and a second spring seat 1141 is fixedly arranged on the swing plate 114 at a position corresponding to the first spring seat 1103. An elastic member 116 is connected between the second spring seat 1141 and the first spring seat 1103 (refer to Figure 7 ), in this embodiment, the elastic member 116 is a tension spring.

[0042] refer to Figure 6 As shown, the transfer motor 115 is fixedly mounted on the side of the swing plate 114; the adaptive roller 113 is fixedly sleeved on the end of the output shaft of the transfer motor 115, and the adaptive roller 113 passes through the mounting plate 110 and is located at a position biased upward between the feeding tube 111 and the connecting tube 112 (refer to Figure 3 ).

[0043] The driven roller 1101 is rotatably disposed on the mounting plate 110 and is located directly below the adaptive roller 113 . Under the pulling force of the elastic member 116 , the adaptive roller 113 is pressed against the driven roller 1101 .

[0044] refer to Figure 3 As shown, the cutting mechanism 12 of this embodiment includes a supporting seat 120, a first clamping block 1201 fixedly arranged on the upper end surface of the supporting seat 120, a cutting motor 122 arranged at the bottom of the supporting seat 120, a cutting blade 123 slidably arranged on the end surface of the first clamping block 1201, a pressing table 121 arranged above the supporting seat 120, a second clamping block 1210 arranged at the bottom of the pressing table 121 and corresponding to the first clamping block 1201, and a vertical feeding motor 124 for driving the pressing table 121.

[0045] The bearing seat 120 is fixedly installed on the side of the bearing vertical plate 101, and the first clamping block 1201 is fixedly arranged at the upper end of the bearing seat 120. In order to facilitate the replacement of the first clamping block 1201 as needed, the first clamping block 1201 is fixed to the bearing vertical plate 101 by screws, and in this embodiment, the upper end surface of the first clamping block 1201 is provided with a groove 12011 for positioning the pipe to be processed, and the groove 12011 corresponds to the connecting tube 112 in the transmission mechanism 11, so as to facilitate the movement of the pipe to be processed from the connecting tube 112 to the groove 12011 of the first clamping block 1201.

[0046] The cutting motor 122 is fixedly mounted at the bottom of the supporting base 120 in a horizontal state. Figure 4 and 5 The output end of the cutting motor 122 is provided with a driving shaft 1221, and a roller 1222 is rotatably provided at the end of the driving shaft 1221 and deviated from the central axis position of the driving shaft 1221 (refer to Figure 5 ).

[0047] In this embodiment, the cutting blade 123 is a flat structure with an inclined blade. The cutting blade 123 is close to the end face of the first clamping block 1201. The cutting blade 123 is provided with a slide groove 1231 corresponding to the roller 1222. The cutting blade 123 is sleeved on the roller 1222 through the slide groove 1231 to realize power transmission with the cutting motor 122. In other embodiments not given, in order to make the pipe incision smoother or for pipes with different hardness, the cutting blade 123 can also be replaced by other blades with different blade shapes, such as a serrated blade.

[0048] A first lead screw nut 1211 perpendicular to the workbench 100 is fixed to the top of the pressing platform 121. The second clamping block 1210 is fixed to the pressing platform 121 by screws for easy disassembly and assembly. The second clamping block 1210 has a convex bottom and has the same shape as the groove 12011 on the first clamping block 1201. In this way, the second clamping block 1210 can be better aligned with the first clamping block 1201 when it is moved onto the first clamping block 1201.

[0049] In order to realize the up and down movement of the pressing platform 121, a vertical bearing seat 1011 is fixedly installed on the supporting vertical plate 101 and directly above the first screw nut 1211. A vertical screw 125 corresponding to the first screw nut 1211 is rotatably arranged in the vertical bearing seat 1011. The vertical screw 125 passes through the first screw nut 1211 and cooperates with the first screw nut 1211. A first driven pulley 1251 is fixedly mounted on the top of the vertical screw 125.

[0050] The vertical feed motor 124 is located on the supporting plate 101 and is on the other side of the vertical bearing seat 1011. In order to achieve stable fixation of the vertical feed motor 124, a first motor seat 1241 is fixedly provided on the supporting plate 101 at a position corresponding to the vertical feed motor 124 and is integrated with the supporting plate 101. The vertical feed motor 124 is fastened to the first motor seat 1241 by screws or bolts. A first driving pulley 1242 is fixedly sleeved on the output end of the vertical feed motor 124, and the first driving pulley 1242 is connected to the first driven pulley 1251 through a belt drive. In other embodiments not given, in order to enable the lower pressing table 121 to achieve more stable movement, a guide rail for sliding of the lower pressing table 121 is also fixedly provided on the supporting plate 101 and at a position corresponding to the lower pressing table 121 (not shown in the figure).

[0051] like Figure 1 and 10 As shown, the flanging mechanism 2 includes a bearing assembly 21 and a flanging assembly 22 .

[0052] The bearing assembly 21 includes a base 210 , a limiting body 211 , a fastening screw 212 and a transverse feed platform 213 .

[0053] The base 210 can be arranged on the transverse feed table 213 to realize quick assembly and disassembly.

[0054] The base 210 is in a rectangular parallelepiped shape, and a clamping groove 2101 is provided in the middle of the base 210. An oblique split clamping head 2102 is fixedly provided at one end of the bottom of the base 210 and integrally with the base 210. Fig.11 The bottom of the base 210 is provided with a positioning groove 2105, as shown in FIG. Fig.12 As shown, a placement groove 2104 is further provided at the bottom of the base 210 , and a threaded through hole 2103 communicating with the placement groove 2104 is provided at a position on the base 210 corresponding to the placement groove 2104 .

[0055] The fastening screw 212 is matched with the threaded through hole 2103 on the base 210 (refer to Fig.11 ).

[0056] A clamping block 2131 is integrally fixed at one end of the transverse feed table 213, and a slashing clamping groove 21311 corresponding to the shape and size of the slashing clamping head 2102 is provided on the inner side of the clamping block 2131. Fig.10 As shown, a positioning protrusion 2132 corresponding in shape and size to the positioning groove 2105 on the base 210 is integrally fixed on the lateral feed platform 213, and a threaded blind hole 2133 is opened on the lateral feed platform 213 at a position corresponding to the placement groove 2104 on the base 210.

[0057] In this embodiment, the limiting body 211 is a rotating body structure, and a conical surface 2112 is provided on the outer side surface of the limiting body 211. A stud body 2111 corresponding to the threaded blind hole 2133 on the lateral feed platform 213 is integrally fixed to the bottom of the limiting body 211, and the bottom surface of the conical surface 2112 faces away from the stud body 2111.

[0058] When the limiting body 211 is fastened in the threaded blind hole 2133 , the projection of the threaded through hole 2103 on the base 210 is located on the conical surface 2112 of the limiting body 211 .

[0059] refer to Figure 1 The flanging assembly 22 includes a longitudinal feeding table 221 slidably disposed on the workbench 100 , and a flanging roller set 220 .

[0060] Further references Figure 1 and 6 As shown, in this embodiment, in order to realize the mobility of the longitudinal feed table 221, two but not limited to two longitudinal guide rails 102 are fixedly provided at the position corresponding to the longitudinal feed table 221 on the workbench 100, and a longitudinal bearing seat 104 is fixedly provided on the workbench 100 and close to one end of the longitudinal guide rail 102. A longitudinal lead screw 223 is rotatably connected in the bearing hole of the longitudinal bearing seat 104, and a second driven pulley 2231 is fixedly sleeved at one end of the longitudinal lead screw 223. A second driven pulley 2231 is fixedly provided at the bottom of the workbench 100 at a position corresponding to the longitudinal bearing seat 104. A fourth motor seat 103 is fixedly arranged or integrally fixed with the workbench 100, a longitudinal feed motor 222 is fastened and installed on the fourth motor seat 103 by bolts, and a second driving pulley 2221 connected to a second driven pulley 2231 by belt transmission is fixedly sleeved on the output end of the longitudinal feed motor 222; the longitudinal feed table 221 is slidably mounted on the longitudinal guide rail 102, and a second screw nut 2213 (reference number 2213 ) sleeved and matched with the longitudinal lead screw 223 is fixedly arranged on one end of the longitudinal feed table 221 close to the longitudinal bearing seat 104. Figure 6 ).

[0061] refer to Figure 1As shown, in the present embodiment, the transverse feed table 213 is arranged on the longitudinal feed table 221, and two transverse guide rails 2211 perpendicular to the longitudinal guide rail 102 are fixedly installed on the longitudinal feed table 221, and a second motor seat 2212 is fixedly provided on one side of the longitudinal feed table 221, and a transverse feed motor 227 is fixedly installed on one side of the second motor seat 2212, and a third driving pulley 2271 is fixedly mounted on the output end of the transverse feed motor 227, and a transverse lead screw 228 parallel to the transverse guide rail 2211 is also rotatably connected to the second motor seat 2212, and a third driven pulley 2281 is fixedly mounted on the transverse lead screw 228 and located below the third driving pulley 2271, and the third driven pulley 2281 is connected to the third driving pulley 2271 by belt transmission.

[0062] The transverse feed platform 213 is slidably mounted on the transverse guide rail 2211. A third screw nut 2241 that is fitted on the transverse screw 228 is fixedly arranged on one end of the transverse feed platform 213 and facing the second motor seat 2212. A third motor seat 224 is also fixedly arranged on the side of the transverse feed platform 213. A flanging motor 226 is fixedly installed on the outer side of the third motor seat 224. Figure 2 The output end of the flanging motor 226 is fixedly sleeved with a driving gear 2261; the flanging roller group 220 in the flanging assembly 22 is arranged on the base 210, Figure 8 and 9 The flanging roller group 220 shown includes a first forming roller 2201, a second forming roller 2202, a shaping roller 2203 and a circular cutting roller 2204. The first forming roller 2201, the second forming roller 2202, the shaping roller 2203 and the circular cutting roller 2204 are arranged side by side on the base 210 facing the cutting mechanism 12.

[0063] The first forming roller 2201 is rotatably arranged on the base 210, one end of the first forming roller 2201 is fixedly connected with a first gear 22012, and the first gear 22012 is located in the clamping groove 2101, and the other end of the first gear 22012 is rotatably connected to the side wall of the clamping groove 2101, and a first cone 22011 is integrally fixedly arranged on the end surface of the first forming roller 2201 (refer to Fig. 9 ), in this embodiment, the cone angle of the first cone 22011 is 60 degrees, and a quarter of the cone is symmetrically removed from both sides of the first cone 22011, and a guide cylinder 2205 is fixed integrally with the first cone 22011 at the center of the first cone 22011.

[0064] The second forming roller 2202 is adjacent to the first forming roller 2201 and is also rotatably arranged on the base 210. One end of the second forming roller 2202 is fixedly connected to a second gear 22022. The second gear 22022 is rotatably mounted on the side wall of the clamping groove 2101 and meshes with the first gear 22012. The other end of the second gear 22022 passes through the base 210 and is fixedly arranged with a driven gear 225 at the end. The driven gear 225 meshes with the driving gear 2261 (refer to Figure 2 ), a second cone 22021 is integrally fixed on the end surface of the second forming roller 2202 (reference Fig. 9 ), in this embodiment, the cone angle of the second cone 22021 is 120 degrees, and the second cone 22021 is also a shape symmetrical on both sides with one quarter of the cone removed, and a guide cylinder 2205 is also integrally provided at the center of the second cone 22021.

[0065] The shaping roller 2203 is adjacent to the second forming roller 2202 and is rotatably arranged on the base 210. One end of the shaping roller 2203 is fixedly connected to a third gear 22032. The third gear 22032 is rotatably connected to the side wall of the clamping groove 2101 and the third gear 22032 is meshed with the second gear 22022. An extrusion plane 22031 is arranged on the end face of the shaping roller 2203. A guide cylinder 2205 is fixedly arranged at the exact center of the extrusion plane 22031.

[0066] The circular cutting roller 2204 is adjacent to the shaping roller 2203 and is rotatably arranged on the base 210. A fourth gear 22042 is fixedly connected to one end of the circular cutting roller 2204. The fourth gear 22042 is rotatably arranged on the side wall of the clamping groove 2101 and meshes with the adjacent third gear 22032. A circular cutting knife 22041 is fixedly arranged on the outer side of the end face of the circular cutting roller 2204. A guide cylinder 2205 is also fixedly arranged in the center of the circular cutting knife 22041.

[0067] The whole working process of the automatic flanging machine of the present invention is described below in conjunction with the accompanying drawings:

[0068] refer to Figure 3 As shown, the rolled pipe to be processed is fed from the right end of the feeding tube 111. When one end of the pipe to be processed extends between the adaptive roller 113 and the driven roller 1101, the adaptive roller 113 is driven by the transmission motor 115 to rotate clockwise, so that the rolling friction of the roller drives the pipe to be processed to move to the left and penetrate into the connecting tube 112. At the same time, the transmission motor 115 and the swing plate 114 can swing around the core shaft 1102 on the mounting plate 110 (refer to Figure 7), under the elastic force of the elastic member 116, the distance between the adaptive roller 113 and the driven roller 1101 can be automatically compensated, so that the adaptive roller 113 will not give excessive pressure to the pipe to be processed, thereby avoiding serious extrusion deformation of the pipe to be processed that affects the subsequent flanging of the pipe, so that the transmission mechanism 11 can achieve a good transmission effect on pipes of various thicknesses.

[0069] Under the guidance of the connecting tube 112 in the transfer mechanism 11, the pipe to be processed is finally transferred to the first clamping block 1201 in the cutting mechanism 12. When the end of the pipe extends to a certain distance to the left end of the first clamping block 1201 (the part of the pipe extending to the outer side of the left end of the first clamping block 1201 is used for subsequent flanging processing), the transfer motor 115 pauses, and the vertical feed motor 124 starts to drive the vertical lead screw 125 to rotate. The vertical lead screw 125 drives the first lead screw nut 1211 through threaded cooperation to convert the rotational motion into linear motion, thereby driving the lower pressing table 121 to move downward, and finally driving the second clamping block 1210 to move down and abut against the first clamping block 1201, so as to clamp and fix the pipe to be processed.

[0070] In the flanging assembly 22 of the flanging mechanism 2, the flanging motor 226 drives the driven gear 225 to rotate through the meshing of the driving gear 2261, and the driven gear 225 rotates to drive the second gear 22022 and the second forming roller 2202 connected thereto to rotate, and the second gear 22022 drives the first gear 22012 and the third gear 22032 meshed on both sides to rotate, thereby driving the fourth gear 22042 to rotate at the same time, thereby the flanging motor 226 drives the driven gear 225 to rotate through the meshing of the gears. The first forming roller 2201, the second forming roller 2202, the shaping roller 2203 and the circular cutting roller 2204 are driven to rotate simultaneously, and the longitudinal lead screw 223 is driven to rotate via a belt drive through the longitudinal feed motor 222, and the longitudinal lead screw 223 is spirally matched with the second lead screw nut 2213 to drive the longitudinal feed table 221 to move precisely along the longitudinal guide rail 102, so that the first forming roller 2201 moves first and is aligned with the pipe to be processed fixed between the first clamp 1201 and the second clamp 1210.

[0071] Then the transverse feed motor 227 is started, driving the transverse feed table 213 to move along the transverse guide rail 2211 to approach the pipe to be processed. During the movement of the first forming roller 2201 along the transverse feed table 213, the guide cylinder 2205 located at the end of the first forming roller 2201 is first inserted into the inner hole of the pipe to be processed, so as to guide the first cone 22011 to enter the inner hole of the pipe to be processed. As the first forming roller 2201 continues to feed (the first cone 22011 with a cone angle of 60 degrees has a relatively gentle inclined surface, making it easy to enter the originally straight inner hole of the pipe), the first cone 22011 is driven to rotate and enter the inner hole of the pipe, and because the first cone 22 011 is an incomplete conical structure, so that the side of the first cone 22011 has angular edges, which reduces the contact area between the conical surface of the first cone 22011 and the inner wall of the pipe fitting, reduces the friction between the first cone 22011 and the inner wall of the pipe fitting, and avoids the distortion and deformation of the pipe fitting due to rotation. At the same time, the angular edges of the rotating first cone 22011 will play a role of reaming the inner wall of the pipe fitting to be processed (and the rotating first cone 22011 will rub against the pipe fitting to heat up the pipe fitting, which is more conducive to deformation of the pipe fitting). Under the dual forces of extrusion and reaming applied by the first cone 22011 to the pipe fitting, the pipe mouth part of the pipe fitting to be processed is deformed into a 60-degree conical flange.

[0072] After completing the initial 60-degree flanging, the lateral feed motor 227 drives the first cone 22011 to retreat, and then the longitudinal feed motor 222 drives the second forming roller 2202 to move to the position aligned with the pipe fitting. The lateral feed motor 227 also drives the second forming roller 2202 to move closer to the pipe fitting. The second cone 22021 at the end of the second forming roller 2202 first guides the second cone 22021 through the guide cylinder 2205 inserted into the inner hole of the pipe fitting. Finally, the second cone 22021 enters the 60-degree conical flanging inner cavity formed by the initial flanging of the pipe fitting. Similarly, the second cone 22021 applies the dual forces of extrusion and reaming to the pipe fitting in the same manner as the first cone 22011, so that the 60-degree conical flanging of the pipe fitting is extruded into a 120-degree flanging with the same contour as the second cone 22021. The rotation extrusion is performed in multiple steps to prevent the pipe fitting from stress concentration and rupture, and the flanging effect is good.

[0073] Then, driven by the transverse feed motor 227 and the longitudinal feed motor 222, the shaping roller 2203 is aligned with the pipe to be processed, and the shaping roller 2203 is driven by the transverse feed motor 227 to move closer to the pipe to be processed, and the guide cylinder 2205 at the exact center of the end of the shaping roller 2203 is inserted into the inner hole of the pipe, and finally the 120-degree flange of the pipe is squeezed by the extrusion plane 22031, and finally the flange part of the pipe is pressed against the On the left end faces of the first clamping block 1201 and the second clamping block 1210, the pipe mouth is finally formed into a final flanging structure perpendicular to the side wall of the pipe; finally, the lateral feed motor 227 and the longitudinal feed motor 222 drive the shaping roller 2203 to withdraw, and align the circular cutting roller 2204 with the pipe that has completed the flanging, and the circular cutting roller 2204 uses the circular cutting knife 22041 rotating at the end to cut the outer edge of the flanging part of the pipe, and remove the burrs and uneven edges of the outer edge of the flanging.

[0074] After completing the flanging process, the vertical feed motor 124 in the cutting mechanism 12 drives the second clamp 1210 to move up and away from the first clamp 1201, and then the transfer motor 115 drives the vertical feed motor 124 to drive the second clamp 1210 to move down again to fix the pipe, and then the cutting motor 122 starts to drive the roller 1222 to rotate eccentrically through the drive shaft 1221, so that when the roller 1222 rotates to the uppermost position, it drives the cutting blade 123 to slide upward to cut the flanging-completed pipe from the rolled pipe, and then the vertical feed motor 124 drives the second clamp 1210 to move up and away from the first clamp 1201 again, and drives the pipe to move to the left through the adaptive roller 113 to leak a small length for the subsequent next flanging process.

[0075] When it is necessary to perform flanging processing on pipes of different specifications and thus replace the flanging roller set 220, it is only necessary to quickly replace the base 210 carrying the flanging roller set 220 in the bearing assembly 21. First, remove the fastening screws 212, lift the base 210 around the oblique splitting clamp 2102 to remove the base 210, and then insert the oblique splitting clamp 2102 of the base 210 equipped with different flanging roller sets 220 into the oblique splitting clamping groove 21311 on the horizontal feed table 213, and then put the base 210 down to make the base The positioning groove 2105 at the bottom of 210 is aligned and inserted into the positioning protrusion 2132 of the lateral feed table 213, and the driven gear 225 is moved to engage with the driving gear 2261. Finally, the fastening screw 212 is screwed back into the threaded through hole 2103, and the end of the fastening screw 212 is pressed tightly against the conical surface 2112 on the limiting body 211, so that the base 210 is continuously close to the upper surface of the lateral feed table 213, and finally the base 210 is accurately positioned and fastened, and the flanging roller group 220 in the bearing component 21 is quickly replaced.

[0076] An automatic flanging machine of the present invention has a transfer mechanism 11 for transferring pipe fittings, a cutting mechanism 12 for clamping and cutting pipe fittings, and a flanging mechanism 2 for extruding and flanging pipe fittings arranged on a workbench 100 of the flanging machine. The transfer mechanism 11 includes an adaptive roller 113 and a driven roller 1101 arranged closely to each other, and can transfer and transport the pipe fittings located between the adaptive roller 113 and the driven roller 1101 to the cutting mechanism 12. The cutting mechanism 12 includes a bearing seat 120 and a lower pressing table 121 movably arranged above the bearing seat 120, and can clamp and fix the pipe fittings. A cutting blade 123 for cutting the pipe fittings is slidably arranged on one side of the bearing seat 120. The flanging mechanism 2 includes a flanging assembly 22, and a flanging roller group 220 is provided in the flanging assembly 22. The flanging roller group 220 includes a rotatable first forming roller 2201, a second forming roller 2202, and a shaping roller 2203. 03 and the circular cutting roller 2204, the first forming roller 2201 performs an initial flanging of the pipe with a small inclination angle, the second forming roller 2202 further expands the flanging angle of the pipe, and finally the shaping roller 2203 extrude the flanging of the pipe into a final flanging perpendicular to the side wall of the pipe, so that the pipe is segmentedly extruded by the first forming roller 2201, the second forming roller 2202 and the shaping roller 2203 to avoid the stress concentration caused by one extrusion force to cause the pipe to rupture, and multiple extrusions can reduce the toughness of the deformed part of the pipe, so that the flanging part can be maintained, and the rotating extrusion flanging roller group 220 can play a role similar to reaming on the pipe, and at the same time, the friction between the rotating roller group and the pipe will cause the pipe to heat up, which is beneficial to the deformation of the pipe and ensures the flanging effect. In summary, the automatic flanging machine of the present invention not only has a high degree of automation and a good flanging effect, but also does not cause the risk of scalding compared with hot flanging.

[0077] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the scope of the present invention through the above description. The technical scope of this invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An automatic flanging machine for flanging a pipe to be processed, comprising a workbench (100), a supporting vertical plate (101) arranged on the workbench (100), and a longitudinal guide rail (102) arranged on the workbench (100), characterized in that: The automatic flanging machine further comprises a transmission mechanism (11), a cutting mechanism (12) and a flanging mechanism (2) arranged on a workbench (100); the transmission mechanism (11) comprises a mounting plate (110), an adaptive roller (113) and a driven roller (1101); the adaptive roller (113) and the driven roller (1101) are arranged on the mounting plate (110); the cutting mechanism (12) is arranged on the supporting vertical plate (101) at the same side as the transmission mechanism (11); the cutting mechanism (12) comprises a supporting seat (120), a lower pressing platform (121) and a cutting blade (123); the lower pressing platform (121) is movably arranged above the supporting seat (120); the cutting blade (123) is movably arranged above the supporting seat (120); and the cutting blade (123) is movably arranged above the supporting seat (120). Arranged on one side of a bearing seat (120), the flanging mechanism (2) comprises a bearing assembly (21) and a flanging assembly (22); the bearing assembly (21) comprises a base (210) and a transverse feed table (213); the flanging assembly (22) comprises a longitudinal feed table (221) and a flanging roller group (220); the longitudinal feed table (221) is slidably arranged on a longitudinal guide rail (102); the transverse feed table (213) is slidably arranged on the longitudinal feed table (221); the flanging roller group (220) is arranged on the base (210); and the flanging roller group (220) comprises a first forming roller (2201), a second forming roller (2202), a shaping roller (2203) and a circular cutting roller (2204).

2. The automatic flanging machine according to claim 1, characterized in that: The transmission mechanism (11) further comprises a transmission motor (115), and an output end of the transmission motor (115) is connected to the adaptive roller (113).

3. The automatic flanging machine according to claim 1, characterized in that: The cutting mechanism (12) also includes a cutting motor (122) arranged on the bearing seat (120).

4. The automatic flanging machine according to claim 3, characterized in that: A driving shaft (1221) is provided on the output shaft of the cutting motor (122), and a roller (1222) corresponding to the cutting blade (123) is provided at the end of the driving shaft (1221) and deviated from the central axis of the driving shaft (1221).

5. The automatic flanging machine according to claim 1, characterized in that: The cutting mechanism (12) further comprises a vertical feeding motor (124), and the vertical feeding motor (124) is in driving connection with the lower pressing platform (121).

6. The automatic flanging machine according to claim 1, characterized in that: The longitudinal feed platform (221) is provided with a transverse guide rail (2211) perpendicular to the longitudinal guide rail (102), and the transverse feed platform (213) is mounted on the transverse guide rail (2211).

7. The automatic flanging machine according to claim 1, characterized in that: The transverse feed platform (213) is also provided with a flanging motor (226), and the flanging motor (226) realizes torque transmission with the flanging roller group (220) through gear transmission.

8. The automatic flanging machine according to claim 1, characterized in that: A first cone (22011) is provided on the end surface of the first forming roller (2201), and the cone angle of the first cone (22011) is 60°.

9. The automatic flanging machine according to claim 1, characterized in that: A second cone (22021) is provided on the end surface of the second forming roller (2202), and the cone angle of the second cone (22021) is 120°.

10. The automatic flanging machine according to claim 1, characterized in that: The ends of the first forming roller (2201), the second forming roller (2202), the shaping roller (2203) and the circular cutting roller (2204) are all provided with guide cylinders (2205).

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