Hovering type welding device

Abstract

The invention belongs to the technical field of welding equipment, and particularly relates to a hovering type welding device which comprises a rack. The lower machine body comprises a first lifting mechanism installed on the machine frame, a cup bottom mold is installed at the movable end of the first lifting mechanism, and the cup bottom mold is used for bearing the lower portion of a cup and moves up and down under the action of the first lifting mechanism; the upper machine body comprises a cup opening supporting mechanism and a rotating mechanism; the cup opening supporting mechanism is used for supporting a cup opening of the cup in the cup; the rotating mechanism is mounted on the rack and is used for driving the cup opening supporting mechanism to rotate so as to drive the cup to rotate; and the welding gun is mounted on the rack and is used for welding the cup opening. The cup welding device aims at solving the problem that an existing welding device cannot be suitable for a cup with the welding position at the top end of a cup opening due to structural defects.

Description

Technical Field

[0001] The invention belongs to the technical field of welding equipment, and in particular relates to a suspended welding device. Background Art

[0002] The metal insulation container is made of double layers of metal inside and outside. During the manufacturing process, the inner liner and the outer shell are combined together using welding technology, and then the bottom of the outer cup is welded to form a sealed space between the bottom of the cup, the outer cup and the inner cup. Vacuum technology is then used to extract the air in the interlayer between the inner liner and the outer shell to achieve the effect of vacuum insulation.

[0003] Therefore, the quality of welding between the cup mouth and the cup bottom directly determines the sealing of the thermal insulation container. During the welding process, the workpiece needs to be fixed by a clamp, otherwise the workpiece is prone to shaking during the welding process, resulting in unstable welding work.

[0004] The Chinese utility model patent (publication number: CN204800180U) discloses a fully automatic arc welding machine. During the welding process, the upper end is supported by the cup mouth fixed template, the inside is supported by the inner liner support head, and the lower part is supported by the cup bottom fixed sleeve. The driving device then drives the inner liner support head to rotate through the main shaft, and then the inner liner drives the outer shell to rotate, so that the inner liner and the outer shell mouth are welded by the welding gun.

[0005] During the welding process, due to the existence of the cup mouth fixing template, the cup mouth (top) of the cup is pressed against the cup mouth fixing template during the alignment of the inner liner and the outer shell. Although the positioning between the inner liner and the outer shell is completed, the cup mouth position is also blocked. It is not applicable to cups whose welding position is at the top of the cup mouth. Summary of the invention

[0006] The purpose of the present invention is to provide a suspended welding device to solve the problem that the existing welding device cannot be applied to the cup with the welding position at the top of the cup mouth due to structural defects.

[0007] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows:

[0008] A suspension welding device, comprising:

[0009] frame;

[0010] A lower body, the lower body comprising a first lifting mechanism mounted on a frame, a cup bottom mold being mounted on a movable end of the first lifting mechanism, the cup bottom mold being used to carry the lower part of the cup and moving up and down under the action of the first lifting mechanism;

[0011] An upper body, the upper body comprising a cup mouth supporting mechanism and a rotating mechanism;

[0012] The cup mouth supporting mechanism is used to support the cup mouth of the cup inside the cup;

[0013] The rotating mechanism is installed on the frame and is used to drive the cup mouth supporting mechanism to rotate, thereby driving the cup to rotate;

[0014] A welding gun, which is mounted on the frame and is used to weld the mouth of the cup;

[0015] The first lifting mechanism is used to drive the cup placed in the cup bottom mold to a specified position, and after the cup mouth support mechanism supports the cup mouth, drive the cup bottom mold to move downward relative to the cup, so that the cup is suspended.

[0016] It is further defined that the upper body further comprises a mouth-matching mechanism, the mouth-matching mechanism comprising a mouth-matching ring and a second lifting mechanism;

[0017] The second lifting mechanism is installed on the upper body and is used to drive the mouth ring to move up and down;

[0018] The mouth ring is installed at the movable end of the second lifting mechanism, and is used to support the top of the cup after the cup bottom mold drives the cup to move upward.

[0019] Such a structural design, through a matching mechanism composed of a matching ring and a second lifting mechanism, cooperates with the first lifting mechanism and the cup bottom mold, can squeeze the upper ends of the inner liner and the outer shell to be flat, avoiding the problem of error in the flatness of the cup mouth of the inner liner and the outer shell, which in turn affects the use effect. Afterwards, the matching ring is driven by the second lifting mechanism to leave the cup mouth area, which can avoid affecting the welding of the cup mouth by the welding gun, and is very practical.

[0020] It is further defined that the cup bottom mold includes a mounting seat, an inner support seat and an outer support seat;

[0021] The mounting seat is fixedly connected to the movable end of the first lifting mechanism;

[0022] The inner support seat is used to support the inner liner of the cup, and a buffer cylinder is installed between the inner support seat and the mounting seat;

[0023] The outer support seat is vertically slidably mounted on the mounting seat and is used to support the outer shell of the cup. A compression spring is installed between the outer support seat and the mounting seat.

[0024] This structural design divides the cup bottom mold into an inner support seat and an outer support seat which are independent of each other, and the inner support seat and the outer support seat respectively support the inner liner and the outer shell of the cup, and then the buffer cylinder and the compression spring respectively support the inner support seat and the outer support seat. This can not only buffer the impact force of the cup moving upward, but also reduce the precision requirements on the inner liner and the outer shell in the length direction, and is very practical.

[0025] It is further defined that the cup opening support mechanism includes a stretching mechanism, a stretching rod and an expansion head;

[0026] The stretching rod is rotatably mounted on the movable end of the stretching mechanism, and a cone head is mounted on the stretching rod;

[0027] The stretching mechanism is installed on the frame and is used to drive the stretching rod to move up and down;

[0028] The expansion head is rotatably mounted on the frame, and comprises a sleeve, a plurality of strip grooves are provided at the lower end of the sleeve, the strip grooves divide the sleeve into a plurality of spring pieces, a protrusion is fixed at the lower end of the spring piece, and a notch matching the cone head is provided on the inner wall of the protrusion.

[0029] Such a structural design, through the pulling of the stretching rod by the stretching mechanism, causes the stretching rod to drive the cone head to move relative to the expansion head, and then utilizes the mutual cooperation between the cone head and the protrusion to overcome the prestress of the spring piece, drives the protrusion to contact with the cup mouth of the cup, and completes the internal support of the cup mouth. The structure is simple, the installation is convenient, and the practicability is strong.

[0030] It is further defined that a cup body support mechanism is also installed below the cup mouth support mechanism, and the cup body support mechanism includes a middle rod, a limit seat and a plurality of connecting rod mechanisms;

[0031] The middle rod is fixedly mounted on the lower end of the stretching rod;

[0032] The limit seat is rotatably mounted on the frame and is transmission-connected to the expansion head;

[0033] The connecting rod mechanism comprises a vertical support rod and a hinged rod, one end of the hinged rod is hinged to the vertical support rod, and the other end of the hinged rod is hinged to the middle rod;

[0034] The vertical support rod is installed on the limit seat in a transverse sliding manner.

[0035] This structural design supports the cup inside the inner liner through the cup body support mechanism, which can improve the stability of the cup during welding; at the same time, the middle rod and the stretching rod of the cup mouth support mechanism are linked, and there is no need for a separate power source, which can reduce equipment costs and is more practical.

[0036] It is further defined that a support bar is laterally provided on a side of the vertical support rod away from the middle rod, and the support bar is arc-shaped.

[0037] This structural design, by replacing the vertical support bars with support bars in contact with the inner liner, can increase the lateral support area between the cup body support mechanism and the inner liner, reduce the deformation of the inner liner under the action of the cup body support mechanism, and is more practical.

[0038] It is further defined that each of the vertical support rods has two support bars, and the two support bars are evenly distributed along the length direction of the vertical support rod;

[0039] The support bar is detachably connected to the vertical support rod.

[0040] Such a structural design, by installing two support bars on the vertical support rod, can enable the cup body support mechanism to provide multi-layer support to the inner wall of the liner at different heights, and the support stability is relatively strong;

[0041] At the same time, by replacing the support strips of different thicknesses, the inner liner with different inner diameters can be supported, which has a wider range of adaptability.

[0042] It is even possible to support conical liner with different upper and lower inner diameters by installing support strips of different thicknesses on the same vertical support rod, thereby further expanding the scope of application and being more practical.

[0043] It is further defined that a limiting groove is provided on the limiting seat;

[0044] A sliding column is provided at the upper end of the vertical support rod, and the sliding column is slidably installed in the limiting groove;

[0045] A limiting block is fixedly provided on the top of the sliding column above the limiting seat, and the width dimension of the vertical support rod is greater than the width dimension of the limiting groove.

[0046] Such a structural design completes the lateral sliding installation between the vertical support rod and the limit seat through the mutual cooperation of the limit groove, the sliding column and the limit block. It has a simple structure, is easy to manufacture and has strong practicality.

[0047] It is further defined that a connecting ring is fixedly provided on the top end of the expansion head;

[0048] The convex block is provided with an avoidance groove, and a connecting rod is passed through the avoidance groove;

[0049] The upper end of the connecting rod is fixedly connected to the connecting ring, and the lower end is fixedly connected to the limiting seat.

[0050] Such a structural design completes the transmission connection between the expansion head and the limit seat through the connecting rod, and enables the cup body support mechanism to rotate together with the expansion head, and utilizes the avoidance groove to accommodate the connecting rod to avoid damage to the outer edge of the expansion head by the connecting mechanism. It has a simple structure, is easy to install, and is highly practical.

[0051] It is further defined that a lateral moving mechanism is also installed on the frame, a connecting frame is installed on the movable end of the lateral moving mechanism, a lateral elastic mechanism is provided between the connecting frame and the lateral moving mechanism, and the connecting frame is fixedly connected to the welding gun;

[0052] A following wheel is rotatably mounted on the connecting frame, and the following wheel is used to lean against the outer wall of the cup mouth of the cup during welding.

[0053] Such a structural design, through the mutual cooperation between the follower wheel and the welding gun, during welding, the lateral moving mechanism is used to drive the follower wheel and the welding gun to move toward the cup mouth direction until the follower wheel is against the outer wall of the cup mouth and forms a certain degree of extrusion on the lateral elastic mechanism, and the position of the follower wheel is compensated by the lateral elastic mechanism, that is, when the outer edge of the cup mouth of the shell is convex, the cup reversely squeezes the follower wheel to overcome the prestress of the lateral elastic mechanism, so that the follower wheel moves outward relative to the central axis of the cup, and then drives the welding gun to move outward, so that the welding position of the welding gun is consistent with the actual shape of the outer edge of the cup mouth of the shell; conversely, when the outer edge of the cup mouth of the shell is concave, the lateral elastic mechanism is used to drive the welding position of the welding gun to shift inward, so as to realize automatic adjustment of the welding position, thereby reducing the precision requirement on the outer edge of the cup mouth of the shell, and having strong practicality.

[0054] The invention adopting the above technical solution has the following advantages:

[0055] 1. The cup bottom mold is driven upward by the first lifting mechanism, and then the cup placed in the cup bottom mold is driven upward to the designated position, so that the cup mouth is set on the cup mouth support mechanism, and then the cup mouth support mechanism supports the cup mouth of the cup and the inner liner of the cup inside the cup, and then the rotating mechanism drives the cup to rotate through the cup mouth support mechanism, and the welding gun is used to complete the welding of the top of the cup mouth. At this time, the cup mouth is completely exposed, and there is no other mechanism to block the top of the cup mouth. It is suitable for cups with the welding position at the top of the cup mouth, with a simple structure and strong practicality;

[0056] 2. The mouth-matching mechanism composed of the mouth-matching ring and the second lifting mechanism cooperates with the first lifting mechanism and the cup bottom mold to squeeze the upper ends of the inner liner and the outer shell to be flat, avoiding the problem of the cup mouth flatness error of the inner liner and the outer shell, which affects the use effect. After that, the mouth-matching ring is driven by the second lifting mechanism to leave the cup mouth area, which can avoid affecting the welding of the welding gun on the cup mouth, and is more practical;

[0057] 3. The cup bottom mold is divided into an inner support seat and an outer support seat which are independent of each other, and the inner support seat and the outer support seat respectively support the inner liner and the outer shell of the cup, and then the buffer cylinder and the compression spring respectively support the inner support seat and the outer support seat, which can not only buffer the impact force of the cup moving upward, but also reduce the precision requirements of the inner liner and the outer shell in the length direction, and has strong practicality;

[0058] 4. The cup is supported inside the inner liner by the cup body support mechanism, which can improve the stability of the cup during welding; at the same time, the middle rod and the stretching rod of the cup mouth support mechanism are linked, and there is no need to set up a separate power source, which can reduce equipment costs and is more practical;

[0059] 5. By installing two support bars on the vertical support rod, the cup body support mechanism can provide multi-layer support for the inner wall of the liner at different heights, and the support stability is relatively strong;

[0060] 6. At the same time, the inner liner with different inner diameters can be supported by replacing the support strips with different thicknesses, which has a wider range of adaptability;

[0061] 7. It is even possible to support the conical liner with different upper and lower inner diameters by installing support strips of different thicknesses on the same vertical support rod, further expanding the scope of application and making it more practical.

[0062] 8. Through the cooperation between the follower wheel and the welding gun, during welding, the lateral moving mechanism is used to drive the follower wheel and the welding gun to move toward the cup mouth of the cup until the follower wheel rests against the outer wall of the cup mouth and forms a certain degree of extrusion on the lateral elastic mechanism. The position compensation of the follower wheel is realized by the lateral elastic mechanism, that is, when the outer edge of the cup mouth of the shell is convex, the cup reversely squeezes the follower wheel to overcome the prestress of the lateral elastic mechanism, so that the follower wheel moves outward relative to the central axis of the cup, and then drives the welding gun to move outward, so that the welding position of the welding gun is consistent with the actual shape of the outer edge of the cup mouth of the shell; conversely, when the outer edge of the cup mouth of the shell is concave, the lateral elastic mechanism is used to drive the welding position of the welding gun to shift inward, so as to realize automatic adjustment of the welding position, thereby reducing the precision requirement on the outer edge of the cup mouth of the shell, and having strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] The present invention can be further illustrated by the non-limiting examples given in the accompanying drawings;

[0064] Figure 1 It is a structural schematic diagram of an embodiment of a suspension welding device of the present invention;

[0065] Figure 2 It is a schematic cross-sectional structure diagram of a suspended welding device embodiment of the present invention when matching;

[0066] Figure 3 It is a structural schematic diagram of a cup body supporting mechanism and a cup mouth supporting mechanism in an embodiment of a suspension type welding device of the present invention;

[0067] Figure 4 It is a partial structural schematic diagram of a cup body supporting mechanism in an embodiment of a suspended welding device of the present invention;

[0068] Figure 5 A schematic diagram of the cross-sectional structure of a suspended welding device during welding in an embodiment of the present invention;

[0069] Figure 6 for Figure 5 A schematic diagram of the enlarged structure at A in the middle;

[0070] Figure 7 It is a cross-sectional structural schematic diagram of an embodiment of a suspension welding device of the present invention;

[0071] The main component symbols are described as follows:

[0072] Cup 1, liner 11, shell 12,

[0073] Cup bottom mold 2, mounting seat 21, inner support seat 22, buffer cylinder 220, outer support seat 23, compression spring 230,

[0074] Mouth fitting mechanism 3, mouth fitting ring 30, stretching rod 31, cone head 310,

[0075] Expansion head 32, sleeve 321, strip groove 322, convex block 323,

[0076] Connecting ring 33,

[0077] Cup body support mechanism 4, middle rod 41, limit seat 42, limit groove 421,

[0078] Vertical support rod 431, sliding column 4311, limit block 4312,

[0079] The hinge rod 432, the support bar 433,

[0080] Avoidance groove 440, connecting rod 44,

[0081] Connecting frame 5 and following wheel 50. DETAILED DESCRIPTION

[0082] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that in the drawings or descriptions of the specification, similar or identical parts use the same figure numbers, and the implementation methods not shown or described in the drawings are forms known to ordinary technicians in the relevant technical field. In addition, the directional terms mentioned in the embodiments, such as "upper", "lower", "top", "bottom", "left", "right", "front", "back", etc., are only referenced to the directions of the drawings and are not used to limit the scope of protection of the present invention.

[0083] like Figure 1 to Figure 7 As shown, a suspension welding device of the present invention comprises:

[0084] frame;

[0085] The lower body includes a first lifting mechanism installed on the frame, and a cup bottom mold 2 is installed at the movable end of the first lifting mechanism. The cup bottom mold 2 is used to carry the lower part of the cup 1 and move up and down under the action of the first lifting mechanism;

[0086] The upper machine body includes a cup mouth supporting mechanism and a rotating mechanism;

[0087] The cup mouth supporting mechanism is used to support the cup mouth of the cup 1 inside the cup 1;

[0088] The rotating mechanism is installed on the frame and is used to drive the cup mouth supporting mechanism to rotate, thereby driving the cup 1 to rotate;

[0089] Welding gun, which is installed on the frame and is used to weld the cup mouth;

[0090] The first lifting mechanism is used to drive the cup 1 placed in the cup bottom mold 2 to a specified position, and after the cup mouth support mechanism supports the cup mouth of the cup 1, drive the cup bottom mold 2 to move downward relative to the cup 1, so that the cup 1 is suspended.

[0091] The upper body also includes a dispensing mechanism 3, which includes a dispensing ring 30 and a second lifting mechanism;

[0092] The second lifting mechanism is installed on the upper body, and is used to drive the fitting ring 30 to move up and down;

[0093] The mouth ring 30 is installed at the movable end of the second lifting mechanism, and is used to support the top of the cup 1 after the cup bottom mold 2 drives the cup 1 to move upward.

[0094] In fact, according to actual conditions, the cup 1 can be fitted with a special fitting mechanism 3 before being placed in the cup bottom mold 2. In this embodiment, the fitting mechanism 3 composed of a fitting ring 30 and a second lifting mechanism, in cooperation with the first lifting mechanism and the cup bottom mold 2, can squeeze the upper ends of the inner liner 11 and the outer shell 12 to be flat, thereby avoiding the problem of the flatness of the cup mouth of the inner liner 11 and the outer shell 12 being incorrect, thereby affecting the use effect. Afterwards, the fitting ring 30 is driven by the second lifting mechanism to leave the cup mouth area, which can avoid affecting the welding of the cup mouth by the welding gun, and is more practical.

[0095] The cup bottom mold 2 includes a mounting seat 21, an inner support seat 22 and an outer support seat 23;

[0096] The mounting seat 21 is fixedly connected to the movable end of the first lifting mechanism;

[0097] The inner support seat 22 is used to support the inner liner 11 of the cup 1, and a buffer cylinder 220 is installed between the inner support seat 22 and the mounting seat 21;

[0098] The outer support seat 23 is vertically slidably mounted on the mounting seat 21 to support the outer shell 12 of the cup 1 . A compression spring 230 is installed between the outer support seat 23 and the mounting seat 21 .

[0099] By dividing the cup bottom mold 2 into an inner support seat 22 and an outer support seat 23 which are independent of each other, and the inner support seat 22 and the outer support seat 23 respectively support the inner liner 11 and the outer shell 12 of the cup 1, and then the buffer cylinder 220 and the compression spring 230 respectively support the inner support seat 22 and the outer support seat 23, the impact force of the cup 1 moving upward can be buffered, and the precision requirement on the inner liner 11 and the outer shell 12 in the length direction can be reduced, which has strong practicality.

[0100] The cup mouth supporting mechanism includes a stretching mechanism, a stretching rod 31 and an expansion head 32;

[0101] The stretching rod 31 is rotatably mounted on the movable end of the stretching mechanism, and a cone head 310 is mounted on the stretching rod 31;

[0102] The stretching mechanism is installed on the frame and is used to drive the stretching rod 31 to move up and down;

[0103] The expansion head 32 is rotatably mounted on the frame, and includes a sleeve 321 . A plurality of strip grooves 322 are provided at the lower end of the sleeve 321 . The strip grooves 322 divide the sleeve 321 into a plurality of spring pieces. A protrusion 323 is fixed at the lower end of the spring piece. A notch matching the cone head 310 is provided on the inner wall of the protrusion 323 .

[0104] In fact, according to actual conditions, other methods such as using a motor to cooperate with the rotation of a cam to drive the components to expand radially to form internal support for the cup mouth can be selected. In this embodiment, the stretching mechanism pulls the stretching rod 31, so that the stretching rod 31 drives the cone head 310 to move relative to the expansion head 32, and then utilizes the mutual cooperation between the cone head 310 and the protrusion 323 to overcome the prestress of the spring piece, drive the protrusion 323 to contact with the cup mouth of the cup 1, and complete the internal support of the cup mouth. The structure is simple, the installation is convenient, and the practicability is strong.

[0105] A cup body support mechanism 4 is also installed below the cup mouth support mechanism, and the cup body support mechanism 4 includes a middle rod 41, a limit seat 42 and a plurality of connecting rod mechanisms; preferably, there are four connecting rod mechanisms;

[0106] The middle rod 41 is fixedly mounted on the lower end of the stretching rod 31;

[0107] The limit seat 42 is rotatably mounted on the frame and is transmission-connected to the expansion head 32;

[0108] The connecting rod mechanism includes a vertical support rod 431 and a hinge rod 432, one end of the hinge rod 432 is hinged to the vertical support rod 431, and the other end is hinged to the middle rod 41;

[0109] The vertical support rod 431 is installed on the limiting seat 42 in a transverse sliding manner.

[0110] In fact, according to actual conditions, a clamping mechanism can be provided on the outside of the cup 1 to stabilize the cup 1. In this embodiment, the cup 1 is supported inside the inner liner 11 by the cup body support mechanism 4, which can improve the stability of the cup 1 during welding. At the same time, the middle rod 41 is linked with the stretching rod 31 of the cup mouth support mechanism, and there is no need to provide an additional power source, which can reduce equipment costs and has strong practicality.

[0111] A support bar 433 is laterally disposed on one side of the vertical support rod 431 away from the middle rod 41 , and the support bar 433 is arc-shaped.

[0112] By replacing the vertical support bar 433 with the support bar 433 in contact with the inner liner 11, the lateral support area of ​​the cup body support mechanism 4 and the inner liner 11 can be increased, and the deformation of the inner liner 11 under the action of the cup body support mechanism 4 can be reduced, which is more practical.

[0113] There are two support bars 433 on each vertical support rod 431, and the two support bars 433 are evenly distributed along the length direction of the vertical support rod 431;

[0114] The support bar 433 is detachably connected to the vertical support rod 431 .

[0115] In fact, according to actual conditions, only one support bar 433 may be fixed on the vertical support rod 431. In this embodiment, by installing two support bars 433 on the vertical support rod 431, the cup body support mechanism 4 can provide multi-layer support for the inner wall of the liner 11 at different heights, and the support stability is relatively strong.

[0116] At the same time, the inner liner 11 with different inner diameters can be supported by replacing the support strips 433 with different thicknesses, so as to have a wider range of adaptability.

[0117] It is even possible to support conical liner with different upper and lower inner diameters by installing support strips 433 of different thicknesses on the same vertical support rod 431, thereby further expanding the scope of application and being more practical.

[0118] The limiting seat 42 is provided with a limiting groove 421;

[0119] A sliding column 4311 is provided at the upper end of the vertical support rod 431, and the sliding column 4311 is slidably installed in the limiting groove 421;

[0120] A limiting block 4312 is fixedly provided on the top of the sliding column 4311 above the limiting seat 42 , and the width dimension of the vertical support rod 431 is greater than the width dimension of the limiting groove 421 .

[0121] In fact, according to actual conditions, other options may be selected, such as directly setting a dovetail block horizontally on the top of the vertical support rod 431, and setting a dovetail groove on the limit seat 42, so as to complete the horizontal sliding installation between the vertical support rod 431 and the limit seat 42 by the mutual cooperation of the dovetail block and the dovetail groove. This embodiment completes the horizontal sliding installation between the vertical support rod 431 and the limit seat 42 through the mutual cooperation of the limit groove 421, the sliding column 4311 and the limit block 4312, and has a simple structure, is easy to manufacture, and has strong practicality.

[0122] A connecting ring 33 is fixedly provided at the top of the expansion head 32;

[0123] The protrusion 323 is provided with an avoidance groove 440 , and a connecting rod 44 is passed through the avoidance groove 440 ;

[0124] The upper end of the connecting rod 44 is fixedly connected to the connecting ring 33 , and the lower end of the connecting rod 44 is fixedly connected to the limiting seat 42 .

[0125] In fact, according to actual conditions, a connecting rod mechanism can be set between the sleeve 321 and the stretching rod 31 to complete the connection between the expansion head 32 and the limit seat 42. In this embodiment, the transmission connection between the expansion head 32 and the limit seat 42 is completed through the connecting rod 44, and the cup body support mechanism 4 can rotate with the expansion head 32, and the avoidance groove 440 is used to accommodate the connecting rod 44 to avoid the connection mechanism from damaging the outer edge of the expansion head 32. The structure is simple, the installation is convenient, and the practicability is strong.

[0126] A lateral moving mechanism is also installed on the frame, and a connecting frame 5 is installed on the movable end of the lateral moving mechanism. A lateral elastic mechanism is provided between the connecting frame 5 and the lateral moving mechanism. The lateral elastic mechanism here can be a compression spring arranged laterally, and the connecting frame 5 is fixedly connected to the welding gun;

[0127] A following wheel 50 is rotatably mounted on the connecting frame 5 , and the following wheel 50 is used to lean against the outer wall of the cup mouth of the cup 1 during welding.

[0128] Through the cooperation between the following wheel 50 and the welding gun, during welding, the lateral moving mechanism is used to drive the following wheel 50 and the welding gun to move toward the cup mouth of the cup 1 until the following wheel 50 is against the outer wall of the cup mouth of the cup 1 and forms a certain degree of extrusion on the lateral elastic mechanism, and the position compensation of the following wheel 50 is realized by the lateral elastic mechanism, that is, when the outer edge of the cup mouth of the shell 12 is convex, the cup 1 reversely squeezes the following wheel 50 to overcome the prestress of the lateral elastic mechanism, so that the following wheel 50 moves outward relative to the central axis of the cup 1, and then drives the welding gun to move outward, so that the welding position of the welding gun is consistent with the actual shape of the outer edge of the cup mouth of the shell 12; on the contrary, when the outer edge of the cup mouth of the shell 12 is concave, the lateral elastic mechanism is used to drive the welding position of the welding gun to shift inward, so as to realize automatic adjustment of the welding position, thereby reducing the precision requirement on the outer edge of the cup mouth of the shell 12, and having strong practicality.

[0129] The stretching mechanism, the first lifting mechanism, the second lifting mechanism and the lateral movement mechanism in the present application can all be one or more of a hydraulic cylinder and a pneumatic cylinder.

[0130] In this embodiment, when in use, the preliminarily assembled cup 1 is placed into the cup bottom mold 2, so that the inner liner 11 is placed in the inner support seat 22, and the outer shell 12 is placed in the outer support seat 23. Figure 7 As shown;

[0131] Then, the cup bottom mold 2 is driven upward by the first lifting mechanism, so that the cup 1 is sleeved on the outer side of the cup mouth support mechanism and the cup body support mechanism 4, until the cup mouth of the cup 1 is against the matching ring 30 in the downward position. Figure 1 and Figure 2 As shown;

[0132] In this process, the cup bottom mold 2 is divided into an inner support seat 22 and an outer support seat 23 which are independent of each other, and the inner support seat 22 and the outer support seat 23 are respectively used to support the inner liner 11 and the outer shell 12 of the cup 1. After the buffer cylinder 220 and the compression spring 230 respectively support the inner support seat 22 and the outer support seat 23, the tops of the inner liner 11 and the outer shell 12 can be aligned when there is a certain error in the precision of the inner liner 11 and the outer shell 12 in the length direction.

[0133] Then, the stretching rod 31 is pulled upward by the stretching mechanism, and the protrusion 323 expands outward by the cooperation between the cone head 310 and the protrusion 323, so as to form a lateral support for the cup mouth inside the cup 1;

[0134] At the same time, the fixed connection between the middle rod 41 and the stretching rod 31 is used to drive the middle rod 41 to move upward synchronously, and the hinge rod 432 is used to hinge the middle rod 41 and the vertical support rod 431, and the vertical support rod 431 is connected to the limit seat 42 by transverse sliding, so that the vertical support rod 431 is driven to move outward. When the protrusion 323 forms an internal support for the cup mouth of the cup 1, the support bar 433 forms a support for the inside of the cup body of the cup 1.

[0135] Then, the second lifting mechanism drives the mouth ring 30 to move upward to clear the welding position of the welding gun on the cup mouth, and the first lifting mechanism drives the cup bottom mold 2 to move downward for a certain distance, so that the cup 1 is separated from the cup bottom mold 2, and the cup 1 is suspended, and then the lateral moving mechanism drives the connecting frame 5 to move toward the cup mouth of the cup 1 until the following wheel 50 is against the outer wall of the cup mouth of the cup 1, and a certain degree of compression is formed on the lateral elastic mechanism (such as Figure 5 shown);

[0136] Then, the cup mouth support mechanism is driven to rotate by the rotating mechanism, and then the cup mouth support mechanism and the cup body support mechanism 4 are contacted with the cup 1 to drive the cup 1 to rotate, and the top of the cup mouth of the cup 1 is welded by the welding gun;

[0137] After welding is completed, the connecting frame 5 and the welding gun are reset through the lateral moving mechanism, and the stretching mechanism is used to push the stretching rod 31 downward, so that the cone head 310 is separated from the squeezing of the protrusion 323, and the protrusion 323 installed on the spring sheet is reset under the action of the spring sheet's own elastic force, releasing the support for the inside of the cup mouth. At the same time, the vertical support rod 431 is driven inward by the hinge rod 432 to release the support for the inside of the cup body. At this time, the cup 1 falls into the cup bottom mold 2, and the first lifting mechanism drives the cup bottom mold 2 to continue to move downward, so as to make room for the cup 1 to be taken out (such as Figure 7 shown);

[0138] Finally, remove the cup 1 from the cup bottom mold 2 and replace the new cup 1.

[0139] The above is a detailed introduction to a suspension welding device provided by the present invention. The description of the specific embodiment is only used to help understand the method and core idea of ​​the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A suspension welding device, characterized in that: include: frame; A lower machine body, the lower machine body comprising a first lifting mechanism mounted on a frame, a cup bottom mold (2) being mounted on a movable end of the first lifting mechanism, the cup bottom mold (2) being used to support the lower part of the cup (1) and to move up and down under the action of the first lifting mechanism; An upper body, the upper body comprising a cup mouth supporting mechanism and a rotating mechanism; The cup mouth supporting mechanism is used to support the cup mouth of the cup (1) inside the cup (1); The rotating mechanism is mounted on the frame and is used to drive the cup mouth supporting mechanism to rotate, thereby driving the cup (1) to rotate; A welding gun, which is mounted on the frame and is used to weld the mouth of the cup; The first lifting mechanism is used to drive the cup (1) placed in the cup bottom mold (2) to a specified position, and after the cup mouth support mechanism supports the cup mouth of the cup (1), drive the cup bottom mold (2) to move downward relative to the cup (1), so that the cup (1) is suspended.

2. A suspension welding device according to claim 1, characterized in that: The upper body further comprises a mouth-matching mechanism (3), wherein the mouth-matching mechanism (3) comprises a mouth-matching ring (30) and a second lifting mechanism; The second lifting mechanism is mounted on the upper body and is used to drive the fitting ring (30) to move up and down; The mouth ring (30) is mounted on the movable end of the second lifting mechanism and is used to support the top of the cup (1) after the cup bottom mold (2) drives the cup (1) to move upward.

3. A suspension welding device according to claim 2, characterized in that: The cup bottom mold (2) comprises a mounting seat (21), an inner support seat (22) and an outer support seat (23); The mounting seat (21) is fixedly connected to the movable end of the first lifting mechanism; The inner support seat (22) is used to support the inner liner (11) of the cup (1), and a buffer cylinder (220) is installed between the inner support seat (22) and the mounting seat (21); The outer support seat (23) is vertically slidably mounted on the mounting seat (21) and is used to support the outer shell (12) of the cup (1); a compression spring (230) is installed between the outer support seat (23) and the mounting seat (21).

4. The hovering welding device according to claim 1, characterized in that: The cup mouth supporting mechanism comprises a stretching mechanism, a stretching rod (31) and an expansion head (32); The stretching rod (31) is rotatably mounted on the movable end of the stretching mechanism, and a cone head (310) is mounted on the stretching rod (31); The stretching mechanism is mounted on the frame and is used to drive the stretching rod (31) to move up and down; The expansion head (32) is rotatably mounted on the frame, and comprises a sleeve (321). A plurality of strip grooves (322) are provided at the lower end of the sleeve (321). The strip grooves (322) divide the sleeve (321) into a plurality of spring pieces. A protrusion (323) is fixedly provided at the lower end of the spring piece. A notch matching the cone head (310) is provided on the inner wall of the protrusion (323).

5. A suspension welding device according to claim 4, characterized in that: A cup body support mechanism (4) is also installed below the cup mouth support mechanism, and the cup body support mechanism (4) comprises a middle rod (41), a limit seat (42) and a plurality of connecting rod mechanisms; The middle rod (41) is fixedly mounted on the lower end of the stretching rod (31); The limit seat (42) is rotatably mounted on the frame and is transmission-connected to the expansion head (32); The connecting rod mechanism comprises a vertical support rod (431) and a hinge rod (432); one end of the hinge rod (432) is hinged to the vertical support rod (431), and the other end of the hinge rod (432) is hinged to the middle rod (41); The vertical support rod (431) is laterally slidably mounted on the limiting seat (42).

6. A suspension welding device according to claim 5, characterized in that: A support bar (433) is laterally provided on a side of the vertical support rod (431) away from the middle rod (41), and the support bar (433) is arc-shaped.

7. A suspension welding device according to claim 6, characterized in that: There are two support bars (433) on each of the vertical support bars (431), and the two support bars (433) are evenly distributed along the length direction of the vertical support bar (431); The support bar (433) is detachably connected to the vertical support rod (431).

8. The hovering welding device according to claim 5, characterized in that: The limiting seat (42) is provided with a limiting groove (421); A sliding column (4311) is provided at the upper end of the vertical support rod (431), and the sliding column (4311) is slidably installed in the limiting groove (421); A limiting block (4312) is fixedly provided at the top end of the sliding column (4311) above the limiting seat (42), and the width dimension of the vertical support rod (431) is greater than the width dimension of the limiting groove (421).

9. The hovering welding device according to claim 5, characterized in that: A connecting ring (33) is fixedly provided on the top end of the expansion head (32); The convex block (323) is provided with an avoidance groove (440), and a connecting rod (44) is inserted into the avoidance groove (440); The upper end of the connecting rod (44) is fixedly connected to the connecting ring (33), and the lower end is fixedly connected to the limiting seat (42).

10. The hovering welding device according to claim 1, characterized in that: The frame is also provided with a transverse moving mechanism, a connecting frame (5) is provided at the movable end of the transverse moving mechanism, a transverse elastic mechanism is provided between the connecting frame (5) and the transverse moving mechanism, and the connecting frame (5) is fixedly connected to the welding gun; A following wheel (50) is rotatably mounted on the connecting frame (5), and the following wheel (50) is used to abut against the outer wall of the cup mouth of the cup (1) during welding.

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