Automatic welding equipment

Abstract

The present application provides an automatic welding device, including a rotatable rotating disk, a plurality of carriers and a first welding device. A plurality of carriers are installed on the rotating disk and are distributed in a circle. Each carrier includes a fixed seat and a core, the fixed seat has a fixing hole that passes through the upper and lower parts, and the core is installed in the fixing hole in a rotatable and up and down movable manner. The first driving device of the first welding device is arranged below the edge of the rotating disk, and the clamp is installed on the first driving device, and the first driving device drives the clamp to rotate and lift. The clamp is raised to a first height and plugged into the core, and lowered to a second height and disconnected from the core. The second driving device is arranged above the edge of the rotating disk, and the top holding member and the welding gun are installed on the second driving device. The second driving device is at least used to: drive the top holding member to lift and lower, and drive the welding gun to approach or move away from the circular weld. This solution can realize continuous automatic welding of circular welds of batch cylindrical composite workpieces, thereby improving welding efficiency and welding quality consistency.

Description

Technical Field

[0001] The present application relates to the technical field of X-ray tube welding, and in particular to an automatic welding device for welding X-ray tube components. Background Art

[0002] The cathode end of the X-ray tube generally includes a cathode piece and an external ceramic shell. The cathode piece is generally cylindrical in shape, and the ceramic shell is generally a tubular piece. Both ends of the ceramic shell are made of metal. The cathode piece is inserted into the ceramic shell, and the ends of the two form a circular weld to be welded.

[0003] In the prior art, argon arc welding is generally used to weld the circular welds of the cathode and the end of the ceramic shell. However, most of the standard argon arc welding equipment on the market is a manual argon arc welding stand-alone machine, which requires the welder to operate at a close distance, and the welding consistency is extremely dependent on the welder's proficiency, resulting in low production efficiency.

[0004] At the same time, the current density of argon arc welding is large, the light emitted is relatively strong, the ultraviolet radiation generated by the arc is 5-30 times that of ordinary arc welding, and the infrared radiation is about 1-1.5 times that of arc welding. The amount of ozone generated during welding is relatively high, and the high-frequency electromagnetic field itself can cause serious harm to the welder's body if exposed for a long time. Summary of the invention

[0005] The purpose of the embodiment of the present application is to provide an automatic welding device that can realize continuous automatic welding of circular welds of batch cylindrical composite workpieces, improve welding efficiency, and improve the consistency of welding product quality.

[0006] The application provides an automatic welding device for welding a circular weld of a cylindrical composite workpiece, wherein the cylindrical composite workpiece includes a tubular member and a cylindrical member, wherein the cylindrical member is inserted into the tubular member, and a circular weld to be welded is formed on at least one end surface of the cylindrical member. The automatic welding device includes at least a rotatable rotating disk, a plurality of carriers, and a first welding device.

[0007] A loading station, a first welding station and a unloading station are arranged in sequence around the rotating disk. A plurality of carriers are installed on the rotating disk and are located at the edge, and are distributed in a circle around the center of the rotating disk; each carrier includes a fixed seat and a core, the fixed seat has a fixed hole that passes through the upper and lower parts, and the core is installed in the fixed hole in a rotatable and up and down movable manner, and the rotation axis of the core is along the vertical direction.

[0008] The first welding device is arranged at the first welding station, and includes a first driving device, a clamp, a second driving device, a top holding member and a welding gun; the first driving device is arranged below the edge of the rotating disk, the clamp is mounted on the first driving device, and the first driving device is used to drive the clamp to rotate and lift; when the clamp is raised to a first height, it is plugged into the core, and when the clamp is lowered to a second height, it is disconnected from the core; the second driving device is arranged above the edge of the rotating disk, and the top holding member and the welding gun are mounted on the second driving device; the second driving device is at least used to: drive the top holding member to rise or fall, and drive the gun head of the welding gun to approach or move away from the circular weld on the top end face of the cylindrical composite workpiece. During welding, the cylindrical composite workpiece is placed in a vertical posture in the fixing hole and supported by the core, the bottom center of the top holding member is held at the center position of the top end face of the cylindrical composite workpiece, and the gun head of the welding gun is close to the circular weld on the top end face of the cylindrical composite workpiece.

[0009] In an implementable solution, a matching hole is provided at the lower end of the core of the carrier, and a plug connector matching the matching hole is provided at the top of the fixture. When the fixture is raised to a first height, the plug connector at the top of the fixture is inserted into the matching hole; when the fixture is lowered to a second height, the plug connector at the top of the fixture is removed from the matching hole. After the plug connector at the top of the fixture is inserted into the matching hole, the core rotates with the rotation of the fixture; and after the plug connector at the top of the fixture is inserted into the limit position in the matching hole, the core rises with the rise of the fixture.

[0010] In an operative solution, the first driving device includes a first lifting mechanism and a first rotating mechanism. The first lifting mechanism is arranged below the edge of the rotating disk, the first rotating mechanism is mounted on the first lifting mechanism, the first lifting mechanism drives the first rotating mechanism to lift, the fixture is mounted at the output end of the first rotating mechanism, and the first rotating mechanism drives the fixture to rotate.

[0011] In an practicable solution, the second driving device includes a horizontal displacement mechanism and a second lifting mechanism. The horizontal displacement mechanism is arranged above the edge of the rotating disk, the second lifting mechanism and the welding gun are installed on the horizontal displacement mechanism, and the top holding member is installed at the output end of the second lifting mechanism. During welding, the cylindrical composite workpiece is placed in a vertical posture in the fixing hole and supported by the inner core; when the displacement output of the horizontal displacement mechanism is the first displacement position, the top holding member installed at the bottom of the second lifting mechanism is located directly above the center position of the top end face of the cylindrical composite workpiece, and the gun head of the welding gun corresponds to the circular weld seam on the top end face of the cylindrical composite workpiece.

[0012] In an practicable solution, the first welding device further includes a stopper, which is also installed at the output end of the second lifting mechanism and is spaced a predetermined distance from the top holding member; the length of the stopper is greater than the outer diameter of the cylindrical member to be welded. After the displacement output of the horizontal displacement mechanism is changed from the first displacement position to the second displacement position, the top holding member leaves the position directly above the center position of the top end face of the cylindrical assembly workpiece, the stopper is located above the top end face of the cylindrical assembly workpiece, and the tip of the welding gun leaves the circular weld of the top end face of the cylindrical assembly workpiece.

[0013] In one feasible solution, the downward end of the supporting member is a conical head.

[0014] In an practicable solution, a flipping station and a second welding station are also arranged around the rotating disk, the flipping station is arranged between the first welding station and the unloading station, and the second welding station is arranged between the flipping station and the unloading station. The automatic welding equipment also includes a flipping device and a second welding device. The flipping device is arranged at the flipping station, and is used to turn the cylindrical combined workpiece in the carrier near the flipping station upside down. The second welding device is arranged at the second welding station, and the second welding device has the same composition structure as the first welding device.

[0015] In an practicable solution, the flipping device includes a third lifting mechanism, a second rotating mechanism and a first clamping mechanism, wherein the third lifting mechanism is installed at the flipping station, the second rotating mechanism is installed on the third lifting mechanism, and the first clamping mechanism is installed on the second rotating mechanism. The second rotating mechanism drives the first clamping mechanism to rotate with an axis of rotation parallel to the surface of the rotating disk. When the rotating disk rotates and causes a carrier supporting a cylindrical composite workpiece to rotate to the flipping station, the carrier is directly below the first clamping mechanism.

[0016] In an practicable solution, a first inspection station and a second inspection station are arranged around the rotating disk, the first inspection station is arranged between the first welding station and the flipping station, and the second inspection station is arranged between the second welding station and the unloading station. The automatic welding equipment includes a first inspection device and a second inspection device, the first inspection device is arranged on the first inspection station, and the second inspection device is arranged on the second inspection station. The first inspection device is used to detect the circular weld of the cylindrical combined workpiece welded by the first welding device, and is used to detect the circular weld of the cylindrical combined workpiece welded by the second welding device.

[0017] In an practicable solution, the first inspection device and the second inspection device have the same structure. The first inspection device includes an inspection frame, an inspection camera, and a fill light. The inspection frame is fixedly arranged, the inspection camera is installed on the inspection frame with the lens facing downward, and the fill light is installed on the inspection frame. When the rotating disk rotates and causes a carrier supporting a cylindrical assembly workpiece to rotate to the first inspection station or the second inspection station, the carrier is directly below the inspection camera.

[0018] In an implementable solution, the fill light is a ring structure with a middle through hole, and the fill light is located below the inspection camera. When the rotating disk rotates and causes a carrier supporting a cylindrical assembly workpiece to rotate to the first inspection station or the second inspection station, the carrier and the welded cylindrical assembly workpiece are directly below the fill light, and the inspection camera detects the circular weld of the cylindrical assembly workpiece below through the middle through hole of the fill light.

[0019] In an practicable solution, the automatic welding equipment further includes a first loading channel, a second loading channel, a unloading channel and a manipulator. The first loading channel is arranged at the loading station for conveying cylindrical parts. The second loading channel is arranged at the loading station for conveying cylindrical parts. The unloading channel is arranged at the unloading station for conveying the welded cylindrical assembly workpiece. The manipulator is arranged near the rotating disk for sequentially grabbing the cylindrical parts on the first loading channel and the cylindrical parts on the second loading channel and placing them in the fixed holes of the carrier near the loading station, and for grabbing the welded cylindrical assembly workpiece in the carrier near the unloading station to the unloading channel.

[0020] In an practicable solution, the manipulator includes a displacement module and a gripping mechanism. The loading station and the unloading station are adjacent to each other, the displacement module is arranged near the loading station and the unloading station, and the gripping mechanism is installed on the displacement module.

[0021] Compared with the prior art, the beneficial effects of this application include at least:

[0022] The automatic welding equipment of the present application can realize continuous automatic welding of circular welds of batch cylindrical assembly workpieces through the cooperation of a rotating disk, a carrier and a first welding device, greatly improving the welding efficiency of circular welds of cylindrical assembly workpieces.

[0023] During the process of welding circular welds, the rotation of the cylindrical combined workpiece is driven by the first driving device of the first welding device, and the gun head of the welding gun is driven by the second driving device to be adjusted to the position of the circular weld, so that the process of welding the circular weld is completely independent of the welder, and the welder does not need to come into close contact with the welding gun. This not only keeps the welder away from the welding environment and protects the welder's body from the hazards of high-frequency electromagnetic and high-ozone, but the automatic welding method can also improve the consistency of the quality of the welding products, avoid dependence on the welder's skills, and help improve welding quality and welding efficiency.

[0024] In a further solution, the automatic welding equipment of the present application may also include upper and lower material flow channels, a manipulator, a first inspection device, a flipping device, a second welding device, and a second inspection device to realize automatic loading and unloading of cylindrical parts and cylindrical parts of cylindrical combined workpieces and unloading of finished welded products, and the first welding device automatically welds the circular weld at one end of the cylindrical combined workpiece, the flipping device automatically flips the cylindrical combined workpiece, and then the second welding device automatically welds the circular weld at the other end of the cylindrical combined workpiece. After the first welding device completes welding, the first inspection device promptly checks the weld quality. After the second welding device completes welding, the second inspection device promptly checks the weld quality. It can be seen that in a further solution, the automatic welding equipment can realize automatic loading and unloading, realize automatic welding of the welds at both ends of the cylindrical combined workpiece, and can also realize automatic inspection of the circular welds, thereby realizing a fully automatic welding process for the circular welds of the cylindrical combined workpiece, greatly improving production efficiency, and ensuring the consistency of welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a structural diagram of an automatic welding device including only a welding station according to an embodiment of the present application;

[0027] Figure 2 for Figure 1 A first-person perspective structural diagram of a welding device of an automatic welding device;

[0028] Figure 3 for Figure 1 A second perspective structural diagram of a welding device of an automatic welding device;

[0029] Figure 4 for Figure 3The structural diagram of the welding device after removing the cylindrical assembly workpiece from the middle angle;

[0030] Figure 5 It is a structural diagram of an automatic welding device including multiple stations according to an embodiment of the present application;

[0031] Figure 6 for Figure 5 A top view of the automatic welding equipment in FIG.

[0032] Figure 7 for Figure 5 Schematic diagram of the loading and unloading structure of the automatic welding equipment;

[0033] Figure 8 for Figure 7 An enlarged view of the local structure of the manipulator of the automatic welding equipment;

[0034] Fig. 9 for Figure 5 Schematic diagram of the relative positions of the middle turning device and the rotating disk;

[0035] Fig.10 It is a structural diagram of a flipping device of automatic welding equipment according to an embodiment of the present application;

[0036] Fig.11 for Figure 5 A schematic diagram of the relative positions of the first inspection device or the second inspection device and the rotating disk;

[0037] Fig.12 It is a structural diagram of an inspection device for automatic welding equipment according to an embodiment of the present application;

[0038] Fig.13 for Figure 1 A half-section structural diagram of the middle fixture carrying a cylindrical component of a cylindrical assembly workpiece;

[0039] Fig.14 A half-section structural diagram of a fixture for assembling cylindrical and tubular parts;

[0040] Fig.15 A half-section structural diagram of a fixture for circular weld welding of cylindrical composite workpieces;

[0041] Fig.16 This is a half-section diagram of the fixture after the cylindrical composite workpiece is flipped.

[0042] In the figure: 1, rotating disk; 2, carrier; 21, fixed seat; 211, fixing hole; 22, core; 221, matching hole; 222, receiving hole; 3, first welding device; 31, first driving device; 312, first lifting mechanism; 313, first rotating mechanism; 32, clamp; 321, plug connector; 33, second driving device; 331, horizontal displacement mechanism; 332, second lifting mechanism; 34, top holding member; 35, welding gun; 36, limit member; 4, flip device 41. third lifting mechanism; 42. second rotating mechanism; 43. first clamping mechanism; 5. second welding device; 6. first inspection device; 61. inspection frame; 62. inspection camera; 63. fill light; 7. second inspection device; 8. first feed flow channel; 9. second feed flow channel; 10. feed flow channel; 11. manipulator; 1101. displacement module; 1102. grabbing mechanism; 100. cylindrical assembly workpiece; 101. cylindrical part; 102. cylindrical part;

[0043] A1, loading station; A2, first welding station; A3, first inspection station; A4, flipping station; A5, second welding station; A6, second inspection station; A7, unloading station. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0045] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0046] The present application provides an automatic welding device for welding a circular weld of a cylindrical composite workpiece. Figures 13 to 16 As shown in , the cylindrical assembly workpiece 100 includes a cylindrical member 102 and a cylindrical member 101. The cylindrical member 101 is inserted into the cylindrical member 102. A circular weld to be welded is formed on one end surface of the cylindrical member 102 and the cylindrical member 101, or a circular weld to be welded is formed on both sides. For the assembly structure of the cathode member and the ceramic shell of the X-ray tube, after the cathode member is inserted into the ceramic shell, the metal edges at both ends of the ceramic shell and the cathode member respectively form circular welds to be welded.

[0047] like Figure 1 As shown, an automatic welding device provided by an embodiment of the present application at least comprises a rotatable rotating disk 1, a plurality of carriers 2 and a first welding device 3. The rotating disk 1 can be driven to rotate by a rotating motor or other driving devices.

[0048] like Figure 6 As shown, at least a loading station A1 , a first welding station A2 , and an unloading station A7 may be sequentially arranged around the rotating disk 1 .

[0049] like Figure 1 As shown, a plurality of carriers 2 are installed on the rotating disk 1 and are located at the edge and are distributed in a circle around the center of the rotating disk 1. Figure 1 , Figures 13 to 16 As shown, each carrier 2 includes a fixing seat 21 and a core 22. The fixing seat 21 has a fixing hole 211 penetrating vertically. The core 22 is installed in the fixing hole 211 in a rotatable and vertically movable manner, and the rotation axis of the core 22 is along the vertical direction.

[0050] Among them, at the loading station A1, the cylindrical part 101 and the tubular part 102 of the cylindrical combined workpiece 100 can be placed in the fixing hole 211 of the fixing seat 21 of the carrier 2 in sequence by an electric manipulator or manually, or the cylindrical part 101 and the tubular part 102 can be combined into a cylindrical combined workpiece 100 and then placed in the fixing hole 211.

[0051] like Figure 6 As shown, the first welding device 3 is arranged at the first welding station. Figure 2 , Figure 3 and Figure 4 As shown, the first welding device 3 comprises a first driving device 31, a clamp 32, a second driving device 33, a supporting member 34 and a welding gun 35. The welding gun 35 is a argon arc welding gun, which is used to implement the argon arc welding process.

[0052] The first driving device 31 is arranged below the edge of the rotating disk 1, and the clamp 32 is installed on the first driving device 31. The first driving device 31 is used to drive the clamp 32 to rotate and rise and fall. When the clamp 32 rises to the first height, it is plugged into the core 22, so that the core 22 can rotate with the rotation of the clamp 32, and the rise of the clamp 32 can also drive the rise of the core 22. When the clamp 32 is lowered to the second height, it is disconnected from the core 22, so that the current carrier 2 can rotate to the next station following the rotation of the rotating disk 1.

[0053] The second driving device 33 is arranged above the edge of the rotating disk 1, and the top holding member 34 and the welding gun 35 are installed on the second driving device 33. The second driving device 33 is at least used to drive the top holding member 34 to rise or fall, and drive the gun head of the welding gun 35 to approach or move away from the circular weld of the top end surface of the cylindrical composite workpiece.

[0054] During welding, Figure 2 As shown, the assembled cylindrical composite workpiece 100 is placed in a vertical posture in the fixing hole 211 and supported by the core 22. The second driving device 33 drives the supporting member 34 to lower, so that the center position of the bottom end of the supporting member 34 is supported at the center position of the top end surface of the cylindrical composite workpiece 100, and the lower part is supported by the clamp 32, and the second driving device 33 drives the gun head of the welding gun 35 to approach the circular weld on the top end surface of the cylindrical composite workpiece 100. After that, the welding gun 35 starts to work, and at the same time, the first driving device 31 drives the clamp 32 to rotate, and drives the core 22 of the carrier 2 to rotate, and then drives the cylindrical composite workpiece 100 to rotate in a circle, so that the circular weld passes the gun head position of the welding gun 35 in turn, so that the welding gun 35 completes the welding of the entire circular weld.

[0055] After the cylindrical composite workpiece 100 in the current carrier 2 is welded, the rotary disk 1 rotates to rotate the current carrier 2 to the next station, and the carrier 2 with the cylindrical composite workpiece 100 placed in the previous station rotates to the position of the first welding device 3 to continue welding. The above process is repeated to achieve continuous welding of circular welds of batches of cylindrical composite workpieces 100.

[0056] In summary, the automatic welding equipment of this embodiment, through the cooperation of the rotating disk 1, the carrier 2 and the first welding device 3, can realize the continuous automatic welding of the circular welds of batch cylindrical composite workpieces 100, greatly improving the welding efficiency of the circular welds of the cylindrical composite workpieces 100.

[0057] During the process of welding a circular weld, the rotation of the cylindrical composite workpiece 100 is driven by the first driving device 31 of the first welding device 3, and the gun head of the welding gun 35 is driven by the second driving device 32 to adjust to the position of the circular weld, so that the process of welding the circular weld is completely separated from the welder, and the welder does not need to come into close contact with the welding gun. This not only keeps the welder away from the welding environment and protects the welder's body from the hazards of high-frequency electromagnetic and high ozone, but the automatic welding method can also improve the consistency of the quality of the welding products, avoid dependence on the welder's skills, and help improve welding quality and welding efficiency.

[0058] In this embodiment, if Fig.13 and Fig.14As shown, the lower end of the core 22 of the carrier 2 is provided with a matching hole 221, and the top of the clamp 32 is provided with a plug connector 321 that matches the matching hole 221. When the clamp 32 is raised to a first height, the plug connector 321 at the top of the clamp 32 is inserted into the matching hole 221; when the clamp 32 is lowered to a second height, the plug connector 321 at the top of the clamp 32 is disengaged from the matching hole 221. After the plug connector 321 at the top of the clamp 32 is inserted into the matching hole 221, the core 22 rotates with the rotation of the clamp 32; and after the plug connector 321 at the top of the clamp 32 is inserted into the limit position in the matching hole 221, the core 22 rises with the rise of the clamp 32. The cross-sectional shape of the matching hole 221 can be a polygonal hole, an elliptical hole, etc.

[0059] In this embodiment, if Figures 13 to 15 As shown, a downwardly extending receiving hole 222 is provided at the upper end of the core 22, and the size of the receiving hole 222 is smaller than the outer diameter of the cylindrical member 101 of the cylindrical composite workpiece 100. If the cylindrical composite workpiece 100 is the cathode end of an X-ray tube, since a lead wire is provided at one end thereof, the receiving hole 222 provides a receiving space for the lead wire, thereby preventing damage to the lead wire.

[0060] In this embodiment, if Figure 3 and Figure 4 As shown, the first driving device 31 may include a first lifting mechanism 312 and a first rotating mechanism 313. The first lifting mechanism 312 is arranged below the edge of the rotating disk 1, the first rotating mechanism 313 is mounted on the first lifting mechanism 312, the first lifting mechanism 312 drives the first rotating mechanism 313 to rise and fall, the clamp 32 is mounted at the output end of the first rotating mechanism 313, and the first rotating mechanism 313 drives the clamp 32 to rotate.

[0061] In this embodiment, if Figure 2 , Figure 3 and Figure 4 As shown, the second driving device 33 may include a horizontal displacement mechanism 331 and a second lifting mechanism 332. The horizontal displacement mechanism 331 is arranged above the edge of the rotating disk 1, the second lifting mechanism 332 and the welding gun 35 are installed on the horizontal displacement mechanism 331, and the top holding member 34 is installed at the output end of the second lifting mechanism 332. During welding, the cylindrical composite workpiece is placed in a vertical posture in the fixing hole 211 and supported by the inner core 22; when the displacement output of the horizontal displacement mechanism 331 is the first displacement position, the top holding member 34 installed at the lower part of the second lifting mechanism 332 is located directly above the center position of the top end face of the cylindrical composite workpiece 100, and the gun head of the welding gun 35 corresponds to the circular weld at the top end face of the cylindrical composite workpiece.

[0062] In this embodiment, the downward end of the support member 34 may be a conical head. During welding, the bottom of the cylindrical composite workpiece 100 (the bottom ends of the cylindrical member 101 and the tubular member 102) is supported by the core 22, and the support member 34 is pushed from the top to the center of the upper end surface of the cylindrical member 101, and the first rotating mechanism 313 of the first driving device 31 rotates to drive the cylindrical composite workpiece 100 to rotate. At this time, the welding gun 35 welds the circular weld on the top of the cylindrical composite workpiece 100.

[0063] In this embodiment, if Figure 2 As shown, the first welding device 3 may further include a stopper 36, which is also installed at the output end of the second lifting mechanism 332 and is spaced a predetermined distance from the top holding member 34; the length of the stopper 36 is greater than the outer diameter of the cylindrical member 102 to be welded. After the displacement output of the horizontal displacement mechanism 331 is changed from the first displacement position to the second displacement position, the top holding member 34 leaves the center position of the top end face of the cylindrical assembly workpiece, the stopper 36 is located above the top end face of the cylindrical assembly workpiece, and the tip of the welding gun 35 leaves the circular weld seam of the top end face of the cylindrical assembly workpiece.

[0064] Specifically, first, Fig.13 As shown, the cylindrical member 101 of the cylindrical composite workpiece 100 can be placed in the fixing hole 211 of the carrier 2 and supported by the core 22. Fig.14 As shown, the cylindrical member 102 of the cylindrical composite workpiece 100 is placed in the fixing hole 211 of the carrier 2 and is on the cylindrical member 101. Next, the carrier 2 loaded with the cylindrical member 101 and the cylindrical member 102 is rotated by the rotating disk 1 to the first welding device 3. After that, the displacement input of the horizontal displacement mechanism 331 of the second driving device 33 is the second displacement position, so that the limit member 36 is directly above the cylindrical member 102, and the second lifting mechanism 332 makes the limit member 36 drop to a predetermined height. At the same time, the first lifting mechanism 312 of the first driving device 31 rises to lift the inner core 22. Under the limiting action of the upper limit member 36 and the lifting action of the inner core 22, the cylindrical member 101 is pushed into the cylindrical member 102 to achieve the matching of the cylindrical member 101 and the cylindrical member 102, and the cylindrical composite workpiece 100 to be welded is obtained. It can be seen that the provision of the limiting member 36 facilitates the automatic assembly of the cylindrical member 101 and the tubular member 102 .

[0065] After the cylindrical assembly workpiece 100 is automatically assembled, the displacement output of the horizontal displacement mechanism 331 of the second driving device 33 is the first displacement position, the top holding member 34 installed at the bottom of the second lifting mechanism 332 is located directly above the center position of the top end face of the cylindrical assembly workpiece 100, and the gun head of the welding gun 35 is located at the circular weld of the top end face of the cylindrical assembly workpiece. At this time, the second lifting mechanism 332 drives the top holding member 34 to descend and press against the center of the top end face of the cylindrical member 101. Then, as Fig.15 As shown, the first rotating mechanism 313 of the first driving device 31 rotates to drive the inner core 22 to rotate, thereby driving the cylindrical assembly workpiece 100 to rotate.

[0066] It should be noted that before the first rotating mechanism 313 drives the inner core 22 to rotate, the welding gun 35 can first spot weld the circular weld on the top of the cylindrical assembly workpiece 100, and then drive the cylindrical assembly workpiece 100 to rotate to achieve continuous welding of the circular weld. Spot welding can prevent relative rotation between the cylindrical member 101 and the cylindrical member 102, so as to prevent the relative rotation between the cylindrical member 101 and the cylindrical member 102 from affecting the welding quality.

[0067] In this embodiment, if Figure 5 and Figure 6 As shown, a flipping station A4 and a second welding station A5 may also be arranged around the rotating disk 1, the flipping station A4 is arranged between the first welding station A2 and the unloading station A7, and the second welding station A5 is arranged between the flipping station A4 and the unloading station A7. The automatic welding equipment may also include a flipping device 4 and a second welding device 5. The flipping device 4 is arranged at the flipping station A4, and is used to turn the cylindrical composite workpiece 100 in the carrier 2 near the flipping station A4 upside down. The second welding device 5 is arranged at the second welding station A5, and the second welding device 5 has the same composition structure as the first welding device 3.

[0068] For example, Fig.16 As shown, both ends of the cylindrical composite workpiece 100 have circular welds to be welded. At the first welding station A2, after the first welding device 3 completes the welding of the circular weld at one end, the carrier 2 rotates to the flipping station A4, as shown in FIG. Figure 6 As shown, the cylindrical composite workpiece 100 is flipped by the flipping device 4, and then the second welding device 5 at the second welding station A5 completes the welding of the circular weld at the other end of the cylindrical composite workpiece 100. It can be seen that the arrangement of the rotating disk 1, the carrier 2, the first welding device 3, the flipping device 4 and the second welding device 5 facilitates the automatic welding of the circular welds at both ends of the cylindrical composite workpiece 100, improves the welding efficiency, and helps to ensure the consistency of the weld quality.

[0069] In this embodiment, if Fig. 9 and Fig.10As shown, the flipping device 4 may include a third lifting mechanism 41, a second rotating mechanism 42 and a first clamping mechanism 43. The third lifting mechanism 41 is installed at the flipping station, the second rotating mechanism 42 is installed on the third lifting mechanism 41, and the first clamping mechanism 43 is installed on the second rotating mechanism 42. The second rotating mechanism 42 drives the first clamping mechanism 43 to rotate with an axis of rotation parallel to the surface of the rotating disk 1. When the rotating disk 1 rotates and causes a carrier 2 supporting a cylindrical composite workpiece to rotate to the flipping station, the carrier 2 is directly below the first clamping mechanism 43. During operation, the third lifting mechanism 41 drives the second rotating mechanism 42 and the first clamping mechanism 43 to descend, so that the first clamping mechanism 43 clamps the cylindrical composite workpiece 100, and then the third lifting mechanism 41 lifts the cylindrical composite workpiece 100, and then the second rotating mechanism 42 rotates to flip the cylindrical composite workpiece 100 up and down, and then the third lifting mechanism 41 is lowered to place the cylindrical composite workpiece 100 into the carrier 2 to complete the flipping.

[0070] In this embodiment, if Figure 5 and Figure 6 As shown, a first inspection station A3 and a second inspection station A6 are arranged around the rotating disk 1, the first inspection station A3 is arranged between the first welding station A2 and the flipping station A4, and the second inspection station A6 is arranged between the second welding station A5 and the unloading station A7. The automatic welding equipment may include a first inspection device 6 and a second inspection device 7, the first inspection device 6 is arranged on the first inspection station A3, and the second inspection device 7 is arranged on the second inspection station A6. The first inspection device 6 is used to detect the circular weld of the cylindrical combined workpiece welded by the first welding device 3, and is used to detect the circular weld of the cylindrical combined workpiece welded by the second welding device 5.

[0071] In this embodiment, the structures of the first inspection device 6 and the second inspection device 7 are completely the same. Fig.11 and Fig.12 As shown, the first inspection device 6 may include an inspection frame 61, an inspection camera 62 and a fill light 63. The inspection frame 61 is fixed, the inspection camera 62 is mounted on the inspection frame 61 with the lens facing downward, and the fill light 63 is mounted on the inspection frame 61. When the rotating disk 1 rotates and causes a carrier 2 supporting a cylindrical composite workpiece to rotate to the first inspection station or the second inspection station, the carrier 2 is directly below the inspection camera 62.

[0072] The inspection camera 62 may be a CCD (charge coupled device) camera, which takes pictures to measure the size of the weld and checks whether there are abnormalities such as leaking welds. If there are abnormalities, the cylindrical composite workpiece with weld problems can be discharged from a separate waste flow channel during unloading.

[0073] In this embodiment, if Fig.12 As shown, the fill light 63 may be a ring structure with a middle through hole, and the fill light 63 is located below the inspection camera 62. When the rotating disk 1 rotates and causes a carrier 2 supporting a cylindrical assembly workpiece to rotate to the first inspection station or the second inspection station, the carrier 2 and the welded cylindrical assembly workpiece are located directly below the fill light 63, and the inspection camera 62 detects the circular weld of the cylindrical assembly workpiece below through the middle through hole of the fill light 63.

[0074] In this embodiment, if Figure 5 , Figure 6 and Figure 7 As shown, the automatic welding equipment may also include a first loading channel 8, a second loading channel 9, a unloading channel 10 and a manipulator 11. The first loading channel 8 is arranged at the loading station A1, and is used to convey the cylindrical part 101. The second loading channel 9 is arranged at the loading station A1, and is used to convey the cylindrical part 102. The unloading channel 10 is arranged at the unloading station A7, and is used to convey the welded cylindrical composite workpiece 100. The manipulator 11 is arranged near the rotating disk 1, and is used to sequentially grab the cylindrical part 101 on the first loading channel 8 and the cylindrical part 102 on the second loading channel 9 and place them in the fixing hole 211 of the carrier 2 near the loading station, and is used to grab the welded cylindrical composite workpiece in the carrier 2 near the unloading station onto the unloading channel 10. The addition of the first loading channel 8, the second loading channel 9, the unloading channel 10 and the manipulator 11 enables the automatic welding equipment of this embodiment to achieve fully automatic operations from loading, welding to unloading, which helps to greatly improve production efficiency, reduce operating error rate, and improve the consistency of welding quality.

[0075] The first upper material flow channel 8, the second upper material flow channel 9, and the lower material flow channel 10 can adopt a synchronous belt transmission mechanism.

[0076] In this embodiment, if Fig. 9 As shown, the manipulator 11 may include a displacement module 1101 and a gripping mechanism 1102. The loading station A1 and the unloading station A7 are adjacent, the displacement module 1101 is arranged near the loading station and the unloading station, and the gripping mechanism 1102 is installed on the displacement module 1101. The gripping mechanism 1102 may have the same or similar composition structure as the aforementioned flipping device 4.

[0077] The lifting mechanism mentioned in this embodiment can be a telescopic cylinder, a screw module, an electric push rod, etc., and the rotating mechanism can be a rotating motor, a rotating cylinder, etc. The horizontal displacement mechanism can be a synchronous belt module, a screw module, etc.

[0078] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An automatic welding device for welding a circular weld of a cylindrical composite workpiece, wherein the cylindrical composite workpiece comprises a tubular member and a cylindrical member, wherein the cylindrical member is inserted into the tubular member, and a circular weld to be welded is formed on at least one end surface; It is characterized in that The automatic welding equipment comprises: A rotatable rotating disk (1), with a loading station, a first welding station and a unloading station arranged in sequence around the rotating disk (1); A plurality of carriers (2) are mounted on the rotating disk (1) and are located at the edge thereof and are distributed in a circumference around the center of the rotating disk (1); each of the carriers (2) comprises a fixing seat (21) and a core (22); the fixing seat (21) has a fixing hole (211) penetrating vertically; the core (22) is mounted in the fixing hole (211) in a rotatable and vertically movable manner; and the rotation axis of the core (22) is along the vertical direction; The first welding device (3) is arranged at the first welding station, and comprises a first driving device (31), a clamp (32), a second driving device (33), a supporting member (34) and a welding gun (35); the first driving device (31) is arranged below the edge of the rotating disk (1), the clamp (32) is mounted on the first driving device (31), and the first driving device (31) is used to drive the clamp (32) to rotate and rise and fall; when the clamp (32) rises to a first height, it is plugged into the core (22), and when the clamp (32) falls to a second height, it is disconnected from the core (22); the second driving device (33) is arranged above the edge of the rotating disk (1), the supporting member (34) and the welding gun (35) are mounted on the second driving device (33); the second driving device (33) is at least used to: drive the supporting member (34) to rise or fall, and drive the gun head of the welding gun (35) to approach or move away from the circular weld of the top end surface of the cylindrical composite workpiece; During welding, the cylindrical composite workpiece is placed in the fixing hole (211) in a vertical posture and supported by the inner core (22), the bottom center of the supporting member (34) is supported at the center position of the top end surface of the cylindrical composite workpiece, and the tip of the welding gun (35) is close to the circular weld on the top end surface of the cylindrical composite workpiece; A turning station and a second welding station are also arranged around the rotating disk (1), wherein the turning station is arranged between the first welding station and the blanking station, and the second welding station is arranged between the turning station and the blanking station; The automatic welding equipment also includes a turning device (4) and a second welding device (5); The flipping device (4) is arranged at the flipping station and is used to turn the cylindrical composite workpiece in the carrier (2) near the flipping station upside down; The second welding device (5) is arranged at the second welding station, and the composition structure of the second welding device (5) is completely the same as that of the first welding device (3).

2. The automatic welding equipment according to claim 1, characterized in that: A matching hole (221) is provided at the lower end of the inner core (22) of the carrier (2), and a plug connector (321) matching with the matching hole (221) is provided at the top end of the clamp (32); When the clamp (32) is raised to a first height, the plug connector (321) at the top end of the clamp (32) is inserted into the matching hole (221); when the clamp (32) is lowered to a second height, the plug connector (321) at the top end of the clamp (32) is disengaged from the matching hole (221); After the plug connector (321) at the top of the clamp (32) is inserted into the matching hole (221), the core (22) rotates with the rotation of the clamp (32); and after the plug connector (321) at the top of the clamp (32) is inserted into the matching hole (221) to the limit position, the core (22) rises with the rise of the clamp (32).

3. The automatic welding equipment according to claim 2, characterized in that: The first driving device (31) comprises a first lifting mechanism (312) and a first rotating mechanism (313); The first lifting mechanism (312) is arranged below the edge of the rotating disk (1); the first rotating mechanism (313) is installed on the first lifting mechanism (312); the first lifting mechanism (312) drives the first rotating mechanism (313) to rise and fall; the clamp (32) is installed at the output end of the first rotating mechanism (313); the first rotating mechanism (313) drives the clamp (32) to rotate.

4. The automatic welding equipment according to claim 1, characterized in that: The second driving device (33) comprises a horizontal displacement mechanism (331) and a second lifting mechanism (332); The horizontal displacement mechanism (331) is arranged above the edge of the rotating disk (1), the second lifting mechanism (332) and the welding gun (35) are installed on the horizontal displacement mechanism (331), and the supporting member (34) is installed at the output end of the second lifting mechanism (332); During welding, the cylindrical composite workpiece is placed in the fixing hole (211) in a vertical posture and supported by the inner core (22); when the displacement output of the horizontal displacement mechanism (331) is a first displacement position, the top holding member (34) installed at the lower part of the second lifting mechanism (332) is located directly above the center position of the top end face of the cylindrical composite workpiece, and the gun head of the welding gun (35) corresponds to the circular weld seam on the top end face of the cylindrical composite workpiece.

5. The automatic welding equipment according to claim 4, characterized in that: The first welding device (3) further comprises a stopper (36), which is also mounted at the output end of the second lifting mechanism (332) and is spaced a predetermined distance from the supporting member (34); the length of the stopper (36) is greater than the outer diameter of the cylindrical member to be welded; After the displacement output of the horizontal displacement mechanism (331) changes from the first displacement position to the second displacement position, the top holding member (34) leaves the position directly above the center position of the top end surface of the cylindrical assembly workpiece, the stop member (36) is located above the top end surface of the cylindrical assembly workpiece, and the tip of the welding gun (35) leaves the circular weld seam on the top end surface of the cylindrical assembly workpiece.

6. The automatic welding equipment according to claim 4, characterized in that: The downward end of the supporting member (34) is a conical head.

7. The automatic welding equipment according to any one of claims 1 to 6, characterized in that: The flipping device (4) comprises a third lifting mechanism (41), a second rotating mechanism (42) and a first clamping mechanism (43), wherein the third lifting mechanism (41) is installed at the flipping station, the second rotating mechanism (42) is installed on the third lifting mechanism (41), and the first clamping mechanism (43) is installed on the second rotating mechanism (42); The rotation axis of the second rotating mechanism (42) driving the first clamping mechanism (43) to rotate is parallel to the surface of the rotating disk (1); When the rotating disk (1) rotates and causes the carrier (2) supporting the cylindrical composite workpiece to rotate to the flipping station, the carrier (2) is located directly below the first clamping mechanism (43).

8. The automatic welding equipment according to any one of claims 1 to 6, characterized in that: A first inspection station and a second inspection station are arranged around the rotating disk (1), the first inspection station is arranged between the first welding station and the flipping station, and the second inspection station is arranged between the second welding station and the unloading station; The automatic welding equipment comprises a first inspection device (6) and a second inspection device (7), wherein the first inspection device (6) is arranged on the first inspection station, and the second inspection device (7) is arranged on the second inspection station; The first inspection device (6) is used to detect the circular weld of the cylindrical combined workpiece welded by the first welding device (3), and is used to detect the circular weld of the cylindrical combined workpiece welded by the second welding device (5).

9. The automatic welding equipment according to claim 8, characterized in that: The structures of the first inspection device (6) and the second inspection device (7) are completely the same; The first inspection device (6) comprises an inspection frame (61), an inspection camera (62) and a fill light (63); the inspection frame (61) is fixedly arranged; the inspection camera (62) is mounted on the inspection frame (61) with the lens facing downward; and the fill light (63) is mounted on the inspection frame (61); When the rotating disk (1) rotates and causes the carrier (2) supporting the cylindrical composite workpiece to rotate to the first inspection station or the second inspection station, the carrier (2) is located directly below the inspection camera (62).

10. The automatic welding equipment according to claim 9, characterized in that: The fill light (63) is a ring-shaped structure with a middle through hole, and the fill light (63) is located below the inspection camera (62); When the rotating disk (1) rotates and causes the carrier (2) supporting the cylindrical assembly workpiece to rotate to the first inspection station or the second inspection station, the carrier (2) and the welded cylindrical assembly workpiece are located directly below the fill light (63), and the inspection camera (62) detects the circular weld of the cylindrical assembly workpiece below through the middle through hole of the fill light (63).

11. The automatic welding equipment according to any one of claims 1 to 6, characterized in that: The automatic welding equipment also includes: A first feeding channel (8), arranged at the feeding station, for conveying cylindrical parts; A second feeding channel (9), arranged at the feeding station, for conveying the cylindrical part; A material discharge channel (10) is arranged at the material discharge station and is used to discharge the welded cylindrical composite workpiece; The robot (11) is arranged near the rotating disk (1) and is used to sequentially grasp the cylindrical parts on the first loading channel (8) and the cylindrical parts on the second loading channel (9) and place them in the fixing holes (211) of the carrier (2) near the loading station, and is used to grasp the welded cylindrical composite workpiece in the carrier (2) near the unloading station and place it on the unloading channel (10).

12. The automatic welding equipment according to claim 11, characterized in that: The manipulator (11) comprises a displacement module (1101) and a grasping mechanism (1102); The loading station and the unloading station are adjacent to each other, the displacement module (1101) is arranged near the loading station and the unloading station, and the gripping mechanism (1102) is installed on the displacement module (1101).

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