Cup bottom integrated welding equipment

Abstract

The present invention relates to the technical field of cup body welding, and discloses a cup bottom integrated welding device, which solves the problem that the assembly port of a conventional cup bottom integrated welding machine is designed relative to the outer diameter of the cup body when the cup body and the bottom cover are connected. When the assembly port is consistent, the weld scale on the surface of the cup body is easy to be stuck in the assembly port, and when it is larger than the outer diameter of the cup body, it is easy to cause the cup body and the bottom cover to be offset in the connection, resulting in the bottom cover being offset relative to the cup body after welding. By designing that the inner diameter of the lower port of the funnel cover is slightly larger than the outer diameter of the cup body, the cup body and the bottom cover are preliminarily connected, and then the cup body and the bottom cover are pushed downward by a pressing tool, so that multiple elastic rotating positioning components cooperate with the collaborative components and the control unit to detect the coaxial state of the cup body, the cup bottom and the funnel cover. When different axes are detected, they can also be calibrated by the positioning component, that is, to avoid the deviation between the connection between the cup body and the cup bottom, and to ensure that the cup body and the cup bottom can be smoothly taken out of the funnel cover after welding.

Description

Technical Field

[0001] The present invention relates to the technical field of cup body welding, in particular to a cup bottom integrated welding device. Background Art

[0002] The cup body of the thermos cup is composed of an outer jacket, an inner liner, and a bottom cover. When processing it, an assembly line is adopted, that is, the outer jacket and the inner liner are first welded at the position of the cup mouth to form the cup body, and then the bottom of the cup body is welded to the bottom cover. The equipment for welding the cup body and the bottom cover includes a cup bottom integrated welding machine.

[0003] The cup bottom integrated welding machine consists of a funnel-shaped assembly port and a pressing tooling and a rotating tooling respectively arranged above and below the assembly port. A laser welding gun is set on one side of the rotating tooling. The bottom cover and cup body are manually placed into the assembly port in sequence. The funnel-shaped assembly port automatically positions the cup body on the upper side of the bottom cover so that they are vertically coaxial. The pressing tooling then presses down the cup body, clamping the cup body and bottom cover between the pressing tooling and the rotating tooling, and causing the butt gap between the cup body and bottom cover to move down to the welding area of the laser welding gun. Then, the rotating tooling and the laser welding gun are started simultaneously, causing the cup body and bottom cover to rotate one circle to complete their welding.

[0004] When positioning the cup body and the bottom cover up and down through the funnel-shaped assembly opening, it was found that when the inner diameter of the lower opening of the assembly opening was set to be consistent with the diameter of the outer surface of the cup body, when the cup body was taken out from the assembly opening after welding with a laser welding gun, the weld scales protruding from the surface of the cup body would be stuck on the lower side of the lower opening of the assembly opening, making it difficult to take out the cup body. When the inner diameter of the lower opening of the assembly opening was set to be slightly larger than the diameter of the cup body surface, the coaxiality of the cup body and the bottom cover was insufficient during docking. After welding, the bottom cover was offset relative to the cup body, affecting the appearance of the cup body. In addition, the gap between the bottom cover and the outer sleeve was uneven. In some places where the gap was large, weld holes were prone to appear, resulting in defective products. Summary of the Invention

[0005] The purpose of the present invention is to provide a cup bottom integrated welding device, which solves the problem that the assembly port of a conventional cup bottom integrated welding machine is used to connect the cup body and the bottom cover. The relative design of the assembly port relative to the outer diameter of the cup body makes it easy for the weld scale on the surface of the cup body to get stuck in the assembly port when they are consistent, and when it is larger than the outer diameter of the cup body, it is easy to cause the cup body and the bottom cover to be misaligned during connection, resulting in the bottom cover being misaligned relative to the cup body after welding.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a cup bottom integrated welding device, comprising a machine body, a funnel cover assembled on the machine body, a pressing tool and a welding gun for clamping the cup body and cup bottom in the funnel cover and rotating them, a rotating tool for welding the cup body and cup bottom to one side of the welding gun, the inner diameter of the lower opening of the funnel cover being set slightly larger than the outer diameter of the cup body, a correction mechanism for detecting the deviation of the cup body and cup bottom and aligning them coaxially, a coordinated component and a control unit are provided on the lower side of the funnel cover, the control unit is electrically connected to the correction mechanism, and controls the working progress of the pressing tool, the funnel cover and the welding gun;

[0007] The cooperative component includes a base and a supporting ring on the outer surface of the base, which is movable up and down. The vertical projection of the cup body entering the funnel cover falls on the upper surface of the supporting ring. The upper surfaces of the base and the supporting ring are parallel to the lower side of the funnel cover, supporting the cup bottom placed by the funnel cover. When the base moves down, the supporting ring slides down on its surface to avoid it, leaving the lower edge of the cup bottom exposed.

[0008] The correction mechanism includes a plurality of positioning components circumferentially arranged on the lower surface of the funnel cover and elastically rotating toward the axis of the funnel cover. When the support ring is evading downward, the plurality of positioning components rotate to one side to an extreme position and simultaneously fit against the side surface of the cup body and the lower edge surface of the cup bottom. The cup body, cup bottom and funnel cover are coaxial. When the cup body, cup bottom and funnel cover are not coaxial, some positioning components cannot rotate to the extreme position, which is detected by the control unit;

[0009] When the control unit detects that a positioning component is not in the limit position, it controls the pressing tool to lift up for a short period of time to reduce the friction between the cup body and the cup bottom, so that the multiple elastically rotating positioning components push the cup body and the cup bottom at the same time and calibrate them to be coaxial with the funnel cover.

[0010] As a further description of the above technical solution: the base support is fixedly assembled on the top rod on the upper side of the rotating tooling, the maximum upward spacing of the base support is located on the lower side of the funnel cover, and the maximum downward spacing causes the gap between the cup body and the cup bottom to align with the welding part of the welding gun, the outer diameter of the support ring is greater than or equal to the inner diameter of the lower opening of the funnel cover, and the diameter of the upper surface of the base support is smaller than the inner diameter of the lower opening of the funnel cover.

[0011] As a further description of the above technical solution: multiple positioning components are synchronously driven by a synchronization component on one side, and the synchronization component includes multiple support legs circumferentially fixedly connected to the lower surface of the funnel cover, and a bottom ring is fixedly connected to the lower side of the multiple support legs. A slip ring is movably assembled above the bottom ring, and a tension spring B is installed on the upper surface of the bottom ring to pull the slip ring downward.

[0012] As a further description of the above technical solution: the positioning assembly includes a rotating part rotatably assembled on the lower surface of the funnel cover, a positioning wheel that is movably fitted with the cup body and the bottom surface of the cup is fixedly installed on one side of the rotating part, and a matching block is fixedly connected to the other side, and an inclined groove is provided on the surface of the matching block. The matching block is movably hinged with a pull rod through the inclined groove, and the hinge shaft connecting the pull rod and the matching block moves inside the inclined groove, and the pull rod is connected to the upper surface of the matching block.

[0013] As a further description of the above technical solution: a pad is provided above the side of the rotating member connected to the positioning wheel, and the pad is fixedly mounted on the lower surface of the funnel cover. The pad limits the rotating member from rotating to the extreme position, so that the positioning wheel fits the surface of the cup body and the bottom of the cup;

[0014] The control unit includes a contact module A embedded in the upper surface of the rotating member and a contact module B embedded in the lower surface of the cushion block. When the rotating member and the cushion block are in press contact, the contact module A and the contact module B are in electrical contact.

[0015] As a further description of the above technical solution: the positioning wheel is rotatably installed on one side of the rotating part, and the surface of the positioning wheel is respectively provided with a first fitting portion that fits with the edge surface of the cup bottom, and a second fitting portion that fits with the side surface of the cup body, and a measuring groove is provided between the first fitting portion and the second fitting portion to detect the height of the weld scale protrusion between the cup body and the cup bottom.

[0016] As a further description of the above technical solution: the rotating tooling is provided with a damping assembly that limits the elastic up and down movement of the push rod, the push rod is controlled to rotate by a servo motor inside the rotating tooling, and the push rod is movable inside the rotating tooling, the damping assembly includes an outer shell fixedly mounted on the upper side of the rotating tooling, a block ring is rotatably mounted on the surface of the push rod, the block ring moves up and down with the push rod, a push spring A is provided on the lower side of the block ring to push it, and a damping ring is also provided on the inner wall of the outer shell, when the push rod drops to the limit position, the damping ring is wrapped around the outer edge of the block ring to damp the speed of the block ring moving upward.

[0017] As a further description of the above technical solution: a driving assembly is also provided under the funnel cover, and the driving assembly is used to drive the slip ring to move above the bottom ring and the support ring to move on the bottom support surface, and the movement of the slip ring and the support ring cooperates.

[0018] As a further description of the above technical solution: the upper side of the bottom support is provided with an avoidance groove for the support ring to slide, and the upper side of the avoidance groove is a limit ring whose upper surface of the limit support ring is parallel to the upper surface of the bottom support. The bottom support includes an upper support part and a rotating sleeve that are embedded and connected in rotation. The lower sides of the upper support part and the rotating sleeve are provided with bearings for rotating them together, the push rod is fixedly connected to the inner ring of the bearing, and the lower side of the support ring is provided with a push spring C to push it, and the lower side of the rotating sleeve is fixedly provided with an outward protruding ring, the lower surface of the outer ring of the bearing is fixedly connected with a clamping block, and the upper surface of the rotating tooling jacket is fixedly connected to a fixing frame, and the fixing frame docks with the clamping block when the bottom support moves down to the extreme position.

[0019] As a further description of the above technical solution: a pull rope is fixedly connected to the inner side of the support leg, a guide wheel is provided on the side surface of the rotating sleeve, and the other end of the pull rope passes around the guide wheel and is fixedly connected to the side surface of the support ring;

[0020] A Z-shaped push frame is fixedly connected to the inner side of the slip ring. The lower end of the Z-shaped push frame is arranged above the protruding ring. A distance is provided between the Z-shaped push frame and the protruding ring in the vertical direction.

[0021] In summary, due to the adoption of the above technical scheme, the beneficial effects of the present invention are as follows: the inner diameter of the lower opening of the funnel cover is designed to be slightly larger than the outer diameter of the cup body, so that the cup body and the bottom cover are preliminarily docked, and then the cup body and the bottom cover are pushed downward by the pressing tool, so that multiple elastic rotating positioning components cooperate with the collaborative components and the control unit to detect the coaxial state of the cup body, the cup bottom and the funnel cover. When different axes are detected, they can also be calibrated by the positioning component, that is, to avoid the deviation between the docking of the cup body and the cup bottom, and to enable the cup body and the cup bottom to be smoothly taken out of the funnel cover after welding: the positioning component also includes a positioning wheel, and a measuring groove is provided on the surface of the positioning wheel. The measuring groove cooperates with the control unit again, and can also detect the protruding height of the weld scale between the cup body and the cup bottom, so as to understand the welding state of the welding gun on the cup body and the cup bottom; the cooperation between the positioning component and the collaborative component can also be structured and automatically coordinated through the driving component to avoid deviation in the moving cooperation between the positioning component and the collaborative component, which causes a collision failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the body structure of the present invention;

[0023] Figure 2 It is a partial cross-sectional schematic diagram of the body of the present invention;

[0024] Figure 3 It is a schematic diagram of the correction mechanism and cooperative components of the present invention;

[0025] Figure 4 For the present invention Figure 3 Schematic diagram of A in the middle;

[0026] Figure 5It is a structural schematic diagram of the correction mechanism of the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the synchronization component of the present invention;

[0028] Figure 7 This is a schematic structural diagram of the positioning assembly of the present invention;

[0029] Figure 8 This is a schematic diagram of the positioning assembly of the present invention being fitted to the cup body and cup bottom;

[0030] Figure 9 It is a schematic diagram of the collaborative component structure of the present invention;

[0031] Figure 10 It is a partial cross-sectional schematic diagram of the cooperative components of the present invention;

[0032] Figure 11 is a plan view of the cooperative components of the present invention;

[0033] Figure 12 It is a schematic structural diagram of the damping assembly of the present invention;

[0034] Figure 13 This is a schematic diagram of the cup body and cup bottom structure of the present invention;

[0035] Figure 14 It is a schematic diagram of the control process flow of the control unit of the present invention.

[0036] In the figure: 10, machine body; 11, pressing tool; 12, funnel cover; 13, welding gun; 14, rotating tool; 15, ejector rod; 16, damping assembly; 161, outer shell; 162, block ring; 163, push spring A; 164, damping ring;

[0037] 20. Correction mechanism; 21. Positioning assembly; 211. Positioning wheel; 2111. First fitting portion; 2112. Second fitting portion; 2113. Measuring slot; 212. Rotating member; 213. Matching block; 214. Inclined slot; 215. Pull rod; 216. Contact module A; 217. Spacer; 218. Contact module B; 22. Synchronizing assembly; 221. Support leg; 222. Bottom ring; 223. Slip ring; 224. Tension spring B; 23. Pull rope; 231. Guide wheel; 24. Z-shaped push frame;

[0038] 30. Collaborative assembly; 31. Bottom support; 311. Upper support; 312. Rotating sleeve; 32. Support ring; 33. Push spring C; 34. Protruding ring; 35. Bearing; 36. Limiting ring; 37. Avoidance groove; 38. Block; 39. Fixed frame. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0040] In order to further understand the content of the present invention, the present invention is described in detail with reference to the accompanying drawings.

[0041] Combine Figures 1-14 A cup bottom integrated welding device includes a body 10, a funnel cover 12 is assembled on the body 10, and a pressing tool 11 and a welding gun 13 for clamping the cup body and cup bottom in the funnel cover 12 and rotating. A rotating tool 14 for welding the cup body and cup bottom is provided on one side of the welding gun 13. The inner diameter of the lower opening of the funnel cover 12 is set to be slightly larger than the outer diameter of the cup body. A correction mechanism 20 for detecting the deviation of the cup body and cup bottom and aligning them coaxially, a cooperative component 30 and a control unit are provided on the lower side of the funnel cover 12. The control unit is connected to the correction mechanism 20 by electrical signals and controls the working process of the pressing tool 11, the funnel cover 12 and the welding gun 13.

[0042] The cooperative component 30 includes a base 31 and a support ring 32 on the outer surface of the base 31 that moves up and down. The vertical projection of the cup body entering through the funnel cover 12 falls on the upper surface of the support ring 32. The upper surfaces of the base 31 and the support ring 32 are parallel to the lower side of the funnel cover 12, supporting the bottom of the cup placed by the funnel cover 12. When the base 31 moves downward, the support ring 32 slides downward on its surface to avoid it, leaving the lower edge of the cup bottom exposed.

[0043] The correction mechanism 20 includes a plurality of positioning components 21 circumferentially arranged on the lower surface of the funnel cover 12 and elastically rotating toward the axis of the funnel cover 12. As the support ring 32 moves downward, the plurality of positioning components 21 rotate to one side to an extreme position, and simultaneously abut against the side surface of the cup body and the lower edge surface of the cup bottom. The cup body, cup bottom and funnel cover 12 are coaxial. When the cup body, cup bottom and funnel cover 12 are not coaxial, some positioning components 21 cannot rotate to the extreme position, which is detected by the control unit.

[0044] When the control unit detects that the positioning assembly 21 is not in the limit position, it controls the pressing tool 11 to lift up for a short period of time, so that the friction between the cup body and the cup bottom is reduced, so that the multiple elastically rotating positioning assemblies 21 push the cup body and the cup bottom at the same time, and align them to be coaxial with the funnel cover 12;

[0045] The control unit includes a PLC integrated control board to realize automatic control of the working process of the electrical structure of the device.

[0046] Furthermore, the bottom support 31 is fixedly assembled on the top rod 15 on the upper side of the rotating tooling 14. The maximum upward spacing of the bottom support 31 is located on the lower side of the funnel cover 12. The maximum downward spacing causes the gap between the cup body and the cup bottom to align with the welding part of the welding gun 13. The outer diameter of the support ring 32 is greater than or equal to the inner diameter of the lower opening of the funnel cover 12, and the diameter of the upper surface of the bottom support 31 is smaller than the inner diameter of the lower opening of the funnel cover 12.

[0047] Furthermore, multiple positioning assemblies 21 are synchronously driven by a synchronization assembly 22 on one side. The synchronization assembly 22 includes multiple support legs 221 circumferentially fixedly connected to the lower surface of the funnel cover 12. A bottom ring 222 is fixedly connected to the lower side of the multiple support legs 221. A slip ring 223 is movably assembled above the bottom ring 222. A tension spring B224 is installed on the upper surface of the bottom ring 222 to pull the slip ring 223 downward.

[0048] Furthermore, the positioning assembly 21 includes a rotating part 212 rotatably assembled on the lower surface of the funnel cover 12, and a positioning wheel 211 that movably fits with the cup body and the cup bottom surface is fixedly installed on one side of the rotating part 212, and a matching block 213 is fixedly connected on the other side. An inclined groove 214 is provided on the surface of the matching block 213, and the matching block 213 is movably hinged with a pull rod 215 through the inclined groove 214. The hinge shaft connecting the pull rod 215 and the matching block 213 moves inside the inclined groove 214, and the pull rod 215 is connected to the upper surface of the matching block 213. The state of the slip ring 223 is elastically pulled by the tension spring B224, so that the slip ring 223 simultaneously pulls down the corresponding matching block 213 through multiple pull rods 215, prompting the multiple rotating parts 212 to rotate to the extreme position, so that the positioning wheel 211 moves to the preset position.

[0049] Furthermore, a pad 217 is provided above the side of the rotating member 212 connected to the positioning wheel 211. The pad 217 is fixedly mounted on the lower surface of the funnel cover 12. The pad 217 limits the rotating member 212 from rotating to the extreme position, so that the positioning wheel 211 fits the surface of the cup body and the bottom of the cup.

[0050] The control unit includes a contact module A216 embedded in the upper surface of the rotating member 212 and a contact module B218 embedded in the lower surface of the pad 217. When the rotating member 212 and the pad 217 are pressed into contact, the contact module A216 and the contact module B218 are in electrical contact.

[0051] Combine Figure 14In implementation, the contact module A216 and the contact module B218 are equivalent to existing piezoresistive sensors. When the contact module A216 and the contact module B218 are in electrical contact, it indicates that the rotating member 212 is restrained by the lower surface of the pad 217. It is thus concluded that the rotating member 212 has reached its limit position. After the control unit receives the electrical contact signals of all corresponding contact modules A216 and B218, it can be determined that the cup body, cup bottom, and funnel cover 12 are in a coaxial state. At this time, the rotary tooling 14 can be started to rotate the base 31, and the welding gun 13 can be started at the same time to weld the rotating cup body and cup bottom.

[0052] When the cup body and the cup bottom are misaligned, the positioning wheel 211 in the misaligned direction will be limited, so that the corresponding rotating member 212 cannot be rotated to the limit position. Therefore, the contact module A216 and the corresponding contact module B218 configured on the rotating member 212 will not contact each other. When the control unit does not receive the signal that all corresponding contact modules A216 and contact modules B218 are in electrical contact, it can be determined that the cup body and the cup bottom are misaligned. At this time, the pressing tool 11 is controlled to lift up the pressure on the upper mouth of the cup body for a short period of time. In this process, the cup body and the cup bottom are The friction between the bottoms is only affected by the weight of the cup body, so the friction is greatly reduced. Since the slip ring 223 is pulled by the elastic force of the tension spring B224, it prompts the multiple positioning wheels 211 to have the thrust to push the cup body and the side of the cup bottom. When the friction between the cup body and the cup bottom is only affected by the weight of the cup body, the thrust of the multiple positioning wheels 211 can push the cup body and the cup bottom to align. The step of controlling the short-term lifting of the pressing tool 11 can be performed multiple times until the control unit can receive the electrical contact signal of all contact modules A216 and contact modules B218, and then perform the welding operation.

[0053] It should be noted that multiple rotating parts 212 are synchronously linked by the slip ring 223, so multiple rotating parts 212 rotate synchronously. In theory, it is sufficient to set contact module A216 and contact module B218 on a pair of rotating parts 212 and the pad 217. However, in practice, it is difficult for the slip ring 223 to move up and down absolutely horizontally. Therefore, when a single positioning wheel 211 is pushed, there is a situation where the action cannot be transmitted to all rotating parts 212. Therefore, it is preferred to configure corresponding contact modules A216 and contact modules B218 on each pair of rotating parts 212 and the pad 217.

[0054] Combine Figure 8In the previous embodiment, the positioning wheel 211 is rotatably mounted on one side of the rotating member 212. The surface of the positioning wheel 211 is provided with a first fitting portion 2111 adapted to fit the edge surface of the cup bottom, and a second fitting portion 2112 adapted to fit the side surface of the cup body. A measuring groove 2113 is provided between the first fitting portion 2111 and the second fitting portion 2112 for detecting the height of the weld scale protrusion between the cup body and the cup bottom.

[0055] When the cup body and cup bottom rotate and are welded by the welding gun 13, the positioning wheel 211 rotates with the cup body and cup bottom to reduce the friction with the surface of the cup body and cup bottom. When the welding gun 13 welds the cup body and cup bottom, the weld scale will pass through the inner side of the measuring groove 2113. When the protruding height of the weld scale is within the appropriate range, it will not contact the inner wall of the measuring groove 2113. When the protruding height of the weld scale exceeds the specification, it will contact the inner wall of the measuring groove 2113, pushing the positioning wheel 211 to deviate to the outside. Among them, the contact module A216 on the positioning wheel 211 will separate from the contact module B218 it contacts. At this time, the control unit receives the signal that the contact module A216 and the contact module B218 are separated, and it can be known that the weld scale between the cup body and the cup bottom welded by the welding gun 13 is too high. Subsequently, it can be prompted through the indicator light on the outside of the machine body 10, which is not visible in the figure, and the status of the welding of the cup body and the cup bottom by the welding gun 13 needs to be inspected.

[0056] Combine Figure 12 In the previous embodiment, the rotary tooling 14 is provided with a damping assembly 16 for limiting the elastic movement of the push rod 15 up and down. The push rod 15 is controlled to rotate by the servo motor inside the rotary tooling 14, and the push rod 15 is movable in the rotary tooling 14. It can be understood that a sleeve is provided in the rotary tooling 14 and is sleeved on the lower side of the push rod 15. The servo motor drives the sleeve to rotate, that is, drives the push rod 15 to rotate, and the push rod 15 can and can only move up and down in the sleeve, so that the push rod 15 can be moved in the rotary tooling 14. The upper side of the device 14 moves up and down, and the damping assembly 16 includes an outer shell 161 fixedly installed on the upper side of the rotating tooling 14. A resistance ring 162 is rotatably installed on the surface of the push rod 15. The resistance ring 162 moves up and down with the push rod 15. A push spring A163 is provided on the lower side of the resistance ring 162 to push it. There is also a damping ring 164 on the inner wall of the outer shell 161. When the push rod 15 drops to the limit position, the damping ring 164 is wrapped around the outer edge of the resistance ring 162 to damp the speed at which the resistance ring 162 moves upward.

[0057] The damping ring 164 is composed of a hollow annular rubber sleeve filled with a non-Newtonian liquid. When the resistance ring 162 moves downward slowly with the push rod 15, it can enter the inner side of the damping ring 164 and be wrapped by the damping ring 164. The push spring A163 can also push the resistance ring 162, causing the push rod 15 to have an upward extrusion force. This extrusion force acts on the cup body, and the cup bottom is clamped between the pressing tool 11 and the bottom support 31.

[0058] In the process of controlling the short-term lifting of the pressing tool 11 to reduce the friction between the cup body and the cup bottom, and making multiple positioning wheels 211 push the cup body and the side of the cup bottom to calibrate them, the lifting of the pressing tool 11 will cause the push rod 15 to adaptively lift up under the push of the push spring A163, which is not conducive to reducing the friction between the cup body and the cup bottom. Through the setting of the damping ring 164 and the resistance ring 162, during the short-term rapid lifting of the pressing tool 11, the resistance ring 162 cannot move up quickly under the action of the shear force of the non-Newtonian liquid in the damping ring 164. This means that during the lifting of the pressing tool 11, the elastic thrust of the push spring A163 on the resistance ring 162 will not act on the bottom of the cup for a certain period of time, so that the pressing tool 11 and the bottom support 31 will not clamp the cup body and the bottom of the cup in this short period of time, thereby making the multiple positioning wheels 211 able to smoothly push the side of the cup body and the bottom of the cup for calibration.

[0059] Combine Figure 3-Figure 11 In the previous embodiment, a driving assembly is further provided below the funnel cover 12, and the driving assembly is used to respectively drive the slip ring 223 to move above the bottom ring 222 and the support ring 32 to move on the surface of the bottom support 31, and the movement of the slip ring 223 and the support ring 32 is coordinated. When the bottom support 31 and the support ring 32 are against the lower surface of the funnel cover 12, the positioning wheel 211 needs to avoid the position. At this time, the slip ring 223 needs to be located on the upper side of the support leg 221, and the matching block 21 is pushed by the pull rod 215. 3. Rotate the rotating member 212 to cause the positioning wheel 211 to deviate to one side to achieve the purpose of avoiding the position. When the bottom bracket 31 moves downward to make the gap between the cup body and the cup bottom correspond to the welding area of the welding gun 13, in order to smoothly rotate the rotating member 212 to the extreme position and make the positioning wheel 211 fit the surface of the cup body and the cup bottom, the support ring 32 needs to move downward on the surface of the bottom bracket 31 so that the edge of the lower surface of the cup bottom is exposed, so that the positioning wheel 211 can smoothly fit the edge of the cup bottom;

[0060] Regarding the drive assembly driving the slip ring 223 to cooperate with the movement of the support ring 32, an electric telescopic rod A (not shown in the figure) can be set under the funnel cover 12 to pull the slip ring 223, and an electric telescopic rod B (not shown in the figure) can be installed on the base 31 to linearly push the support ring 32, and a sensor (not shown in the figure) for detecting its up and down movement can be set at a suitable position on the movement path of the base 31, such as a laser sensor. By detecting the position of the base 31, when the base 31 moves downward, the electric telescopic rod B automatically pulls the support ring 32 to move downward on the surface of the base 31, and the electric telescopic rod A automatically extends to cause the slip ring 223 to move downward. When the base 31 moves upward, the above process is reversed, thereby realizing the mutual coordination between the movement of the slip ring 223 and the support ring 32, so as to achieve the purpose of detecting the deviation of the cup body and the cup bottom and calibrating them coaxially.

[0061] The coordination of the electric telescopic rod A and the electric telescopic rod B is also automatically controlled by the control unit.

[0062] Combine Figure 5-Figure 11 In the previous embodiment, the drive assembly uses the electric telescopic rod A and the electric telescopic rod B and the sensor to respectively drive the slip ring 223 and the support ring 32 to move and cooperate. After long-term and high-frequency use, there is a possibility that the signal feedback from the sensor fails, resulting in the slip ring 223 and the support ring 32 not moving and coordinating in time, thereby causing a collision failure. This embodiment provides a preferred drive assembly that enables the movement of the slip ring 223 and the support ring 32 to be coordinated through linkage, thereby avoiding collision accidents. The drive assembly includes:

[0063] The upper side of the bottom bracket 31 is provided with an avoidance groove 37 for the supporting ring 32 to slide. The upper side of the avoidance groove 37 is a limiting ring 36 whose upper surface of the limiting supporting ring 32 is parallel to the upper surface of the bottom bracket 31. The bottom bracket 31 includes an upper supporting part 311 and a rotating sleeve 312 that are inlaid and rotatably connected. The lower sides of the upper supporting part 311 and the rotating sleeve 312 are provided with a bearing 35 for rotating them. The top rod 15 is fixedly connected to the inner ring of the bearing 35. The lower side of the supporting ring 32 is provided with a push spring C33 to push it. The limiting ring 36 is used to limit the supporting ring 32 so that the supporting ring 32 remains parallel to the upper surface of the upper supporting part 311 only under the elastic push of the push spring C33. The lower side of the rotating sleeve 312 is fixed with an outward protruding ring 34. The lower surface of the outer ring of the bearing 35 is fixedly connected to a clamping block 38. The upper surface of the outer sleeve of the rotating tool 14 is fixedly connected to a fixing frame 39. When the fixing frame 39 moves down to the limit position, it docks with the clamping block 38.

[0064] A pull rope 23 is fixedly connected to the inner side of the support leg 221, and a guide wheel 231 is provided on the side surface of the rotating sleeve 312. The other end of the pull rope 23 passes through the guide wheel 231 and is fixedly connected to the side of the support ring 32;

[0065] A Z-shaped push frame 24 is fixedly connected to the inner side of the slip ring 223 . The lower end of the Z-shaped push frame 24 is located above the protruding ring 34 . A distance is provided between the Z-shaped push frame 24 and the protruding ring 34 in the vertical direction.

[0066] When the bottom support 31 is in the lower position, the pull rope 23 pulls the support ring 32 to the lower side of the avoidance groove 37 through the guide wheel 231, and the push spring C33 is in a compressed state. At this time, the block 38 and the fixing frame 39 are also in a docking state, which will limit the rotation of the outer ring of the bearing 35. This makes it possible to start the rotating tool 14 to cause the push rod 15 to rotate. The push rod 15 only drives the upper support part 311 to rotate, causing the upper cup body and the cup bottom to rotate and be welded by the welding gun 13, while the rotating sleeve 312 is limited and does not rotate, so that it does not affect the connection between the pull rope 23 and the support leg 221. When the upper support part 311 moves upward, the length of the pull rope 23 between the guide wheel 231 and the support leg 221 will decrease, passively causing the support The length of the pull rope 23 between the ring 32 and the guide wheel 231 is increased. In this way, the support ring 32 is automatically flush with the upper surface of the upper supporting part 311 under the push of the push spring C33, and moves to the lower surface of the funnel cover 12. During the upward movement of the upper supporting part 311, the protruding ring 34 that moves upward with it will push the slip ring 223 to move upward through the Z-shaped push frame 24. The upward moving slip ring 223 causes the rotating part 212 to rotate outward, causing the positioning wheel 211 to rotate outward, actively avoiding the upward moving support ring 32. When the upper supporting part 311 is moved downward, the above process will be reversed, thereby realizing the automatic coordination of the movement structure between the slip ring 223 and the support ring 32, avoiding the untimely coordination of the movement of the slip ring 223 and the support ring 32, causing a collision failure.

[0067] Working principle: The cup bottom and cup body are placed into the funnel cover 12 in sequence, and the cup bottom and cup body are preliminarily connected inside the funnel cover 12. Then the pressing tool 11 is started to press the cup body, so that the cup bottom and cup body are clamped between the pressing tool 11 and the bottom support 31. The pressing tool 11 is continuously controlled to press down, and the bottom support 31 moves down to the limit position. The gap between the cup bottom and cup body automatically moves to the welding area of the welding gun 13, wherein the cup bottom and cup body moving downwards will contact with the positioning wheel 211, and the control The unit determines whether the multiple positioning wheels 211 are rotated to the preset position according to the electrical contact conditions of the multiple contact modules A216 and the contact modules B218. After the control unit receives the signal that all corresponding contact modules A216 and contact modules B218 are in electrical contact, it can be determined that the cup body, the cup bottom and the funnel cover 12 are in a coaxial state. At this time, the rotating tool 14 can be started to rotate the base 31, and the welding gun 13 can be started at the same time to make the welding gun 13 weld the rotating cup body and the cup bottom.

[0068] When the cup body and the cup bottom are misaligned, the rotating part 212 will be restricted from rotating to the extreme position. When the control unit does not receive the electrical contact signals of all contact modules A216 and contact modules B218, it is determined that the cup body and the cup bottom are misaligned. At this time, the downward pressing tool 11 is controlled to lift the pressure on the upper mouth of the cup body for a short period of time, so that the friction between the cup body and the cup bottom is reduced. Then, multiple positioning wheels 211 push the sides of the cup body and the cup bottom to align the cup body and the cup bottom. The step of controlling the downward pressing tool 11 to lift for a short period of time can be performed multiple times until the control unit can receive the electrical contact signals of all contact modules A216 and contact modules B218, and then the welding operation is performed.

[0069] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A cup bottom integrated welding device, comprising a body (10), a funnel cover (12) mounted on the body (10), a pressing tool (11) for clamping the cup body and the cup bottom in the funnel cover (12) and rotating the same, and a welding gun (13), wherein one side of the welding gun (13) is provided with a rotating tool (14) for welding the cup body and the cup bottom, characterized in that: The inner diameter of the lower opening of the funnel cover (12) is set to be slightly larger than the outer diameter of the cup body. The lower side of the funnel cover (12) is provided with a correction mechanism (20) for detecting the deviation of the cup body and the cup bottom and calibrating them coaxially, a cooperative component (30) and a control unit. The control unit is connected to the correction mechanism (20) through an electrical signal and controls the working process of the pressing tool (11), the funnel cover (12) and the welding gun (13); The cooperative component (30) includes a base (31) and a supporting ring (32) on the outer surface of the base (31) that moves up and down. The vertical projection of the cup body entering through the funnel cover (12) falls on the upper surface of the supporting ring (32). The upper surfaces of the base (31) and the supporting ring (32) are parallel to the lower side of the funnel cover (12) and support the bottom of the cup placed by the funnel cover (12). When the base (31) moves downward, the supporting ring (32) slides downward on its surface to avoid it, so that the edge of the lower surface of the cup bottom is exposed. The correction mechanism (20) includes a plurality of positioning components (21) circumferentially arranged on the lower surface of the funnel cover (12) and elastically rotating toward the axial center of the funnel cover (12). When the support ring (32) is evading downward, the plurality of positioning components (21) rotate to one side to an extreme position and simultaneously adhere to the side surface of the cup body and the lower edge surface of the cup bottom. The cup body, the cup bottom and the funnel cover (12) are coaxial. When the cup body, the cup bottom and the funnel cover (12) are not coaxial, the positioning components (21) cannot rotate to the extreme position, thereby being detected by the control unit. When the control unit detects that a positioning component (21) is not in the limit position, it controls the pressing tool (11) to lift up for a short period of time, thereby reducing the friction between the cup body and the cup bottom, so that the multiple elastically rotating positioning components (21) simultaneously push the cup body and the cup bottom, and align them to be coaxial with the funnel cover (12).

2. The cup bottom integrated welding equipment according to claim 1, characterized in that: The base support (31) is fixedly assembled on the top rod (15) on the upper side of the rotating tool (14). The maximum upward distance of the base support (31) is located on the lower side of the funnel cover (12). The maximum downward distance causes the gap between the cup body and the cup bottom to align with the welding position of the welding gun (13). The outer diameter of the support ring (32) is greater than or equal to the inner diameter of the lower opening of the funnel cover (12). The diameter of the upper surface of the base support (31) is smaller than the inner diameter of the lower opening of the funnel cover (12).

3. The cup bottom integrated welding equipment according to claim 2, characterized in that: The plurality of positioning assemblies (21) are synchronously driven by a synchronization assembly (22) on one side. The synchronization assembly (22) includes a plurality of support legs (221) fixedly connected to the lower surface of the funnel cover (12) in a circumferential direction. A bottom ring (222) is fixedly connected to the lower side of the plurality of support legs (221). A slip ring (223) is movably mounted above the bottom ring (222). A tension spring B (224) for pulling the slip ring (223) downward is installed on the upper surface of the bottom ring (222).

4. The cup bottom integrated welding equipment according to claim 3, characterized in that: The positioning assembly (21) includes a rotating member (212) rotatably assembled on the lower surface of the funnel cover (12); a positioning wheel (211) movably fitted with the cup body and the cup bottom surface is fixedly installed on one side of the rotating member (212); and a matching block (213) is fixedly connected on the other side; an inclined groove (214) is provided on the surface of the matching block (213); the matching block (213) is movably hinged to a pull rod (215) through the inclined groove (214); a hinge shaft connecting the pull rod (215) and the matching block (213) moves inside the inclined groove (214), and the pull rod (215) is connected to the upper surface of the matching block (213).

5. The cup bottom integrated welding equipment according to claim 4, characterized in that: A pad (217) is provided above one side of the rotating member (212) connected to the positioning wheel (211), and the pad (217) is fixedly mounted on the lower surface of the funnel cover (12). The pad (217) limits the rotating member (212) from rotating to an extreme position, so that the positioning wheel (211) fits the surface of the cup body and the bottom of the cup. The control unit includes a contact module A (216) embedded in the upper surface of the rotating member (212) and a contact module B (218) embedded in the lower surface of the cushion block (217). When the rotating member (212) and the cushion block (217) are in squeeze contact, the contact module A (216) and the contact module B (218) are in electrical contact.

6. The cup bottom integrated welding equipment according to claim 5, characterized in that: The positioning wheel (211) is rotatably mounted on one side of the rotating member (212); a first fitting portion (2111) adapted to fit the edge of the cup bottom and a second fitting portion (2112) adapted to fit the side of the cup body are respectively provided on the surface of the positioning wheel (2111); a measuring groove (2113) for detecting the protruding height of the weld scale between the cup body and the cup bottom is provided between the first fitting portion (2111) and the second fitting portion (2112).

7. The cup bottom integrated welding equipment according to claim 5, characterized in that: The rotary tooling (14) is provided with a damping assembly (16) for elastically moving the limiting push rod (15) up and down. The push rod (15) is controlled to rotate by a servo motor inside the rotary tooling (14), and the push rod (15) is movable inside the rotary tooling (14). The damping assembly (16) includes an outer shell (161) fixedly mounted on the upper side of the rotary tooling (14). A resistance ring (162) is rotatably mounted on the surface of the push rod (15). The resistance ring (162) moves up and down with the push rod (15). A push spring A (163) is provided on the lower side of the resistance ring (162) for pushing it. A damping ring (164) is also provided on the inner wall of the outer shell (161). When the push rod (15) descends to the limit position, the damping ring (164) is wrapped around the outer edge of the resistance ring (162) to damp the speed of the resistance ring (162) moving upward.

8. The cup bottom integrated welding equipment according to claim 3, characterized in that: A driving assembly is further provided below the funnel cover (12), and the driving assembly is used to respectively drive the slip ring (223) to move above the bottom ring (222) and the support ring (32) to move on the surface of the bottom support (31), and the movement of the slip ring (223) and the support ring (32) are coordinated.

9. The cup bottom integrated welding equipment according to claim 8, characterized in that: The upper side of the bottom support (31) is provided with an avoidance groove (37) for the support ring (32) to slide, and the upper side of the avoidance groove (37) is a limit ring (36) whose upper surface of the limit support ring (32) and the upper surface of the bottom support (31) are parallel. The bottom support (31) includes an upper support part (311) and a rotating sleeve (312) that are embedded and connected in rotation. The lower sides of the upper support part (311) and the rotating sleeve (312) are provided with a bearing (35) for rotating them. The top rod (1 5) The inner ring of the bearing (35) is fixedly connected, a push spring C (33) is provided on the lower side of the support ring (32) to push it, an outward protruding ring (34) is fixedly provided on the lower side of the rotating sleeve (312), a clamping block (38) is fixedly connected to the lower surface of the outer ring of the bearing (35), and a fixing frame (39) is fixedly connected to the upper surface of the outer sleeve of the rotating tool (14), and the fixing frame (39) docks with the clamping block (38) when the bottom support (31) moves down to the extreme position.

10. The cup bottom integrated welding equipment according to claim 9, characterized in that: A pull rope (23) is fixedly connected to the inner side of the support leg (221), a guide wheel (231) is provided on the side surface of the rotating sleeve (312), and the other end of the pull rope (23) passes around the guide wheel (231) and is fixedly connected to the side of the support ring (32); A Z-shaped push frame (24) is fixedly connected to the inner side of the slip ring (223), and the lower end of the Z-shaped push frame (24) is arranged above the protruding ring (34). A spacing is provided between the Z-shaped push frame (24) and the protruding ring (34) in the vertical direction.

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