Swing arm cap replacing machine

Abstract

The invention discloses a swing arm cap replacing machine which comprises a rack, the rack is provided with a rotating shaft capable of rotating, the rack is provided with a driving part used for driving the rotating shaft to rotate, the rotating shaft is provided with a mounting frame, and the mounting frame is provided with a cap mounting mechanism used for bearing an upright electrode cap and an inverted electrode cap and a clamping mechanism. The clamping mechanism is used for clamping an upright electrode cap and an inverted electrode cap which are located on two opposite electrode connecting rods and can loosen the upright electrode cap and the inverted electrode cap, the mounting frame is provided with a first sensor used for detecting the dismounting state of the electrode caps on the electrode connecting rods, and the detection mechanism is used for detecting the rotating angle of the mounting frame. The rotating shaft is driven by the driving piece to rotate to meet the angle requirement when the electrode caps are replaced, and the clamping mechanism and the cap installing mechanism stably replace the upright electrode caps and the inverted electrode caps for the two electrode connecting rods. Compared with a traditional manipulator for moving and changing the angle to replace the cap, the device is low in overall cost. The device is high in automation degree and efficient in cap replacing operation.

Description

Technical Field

[0001] This invention relates to the field of electrode cap processing equipment technology, specifically to a swing arm cap changing machine. Background Technology

[0002] In robotic welding operations, electrode caps fitted onto electrode connecting rods may develop weld slag and oxidation after a period of use. Chinese invention patent application CN117798794A discloses a servo-driven automatic electrode cap changing and grinding machine. The cap clamp can stably deliver the electrode cap, preventing displacement and improving transport stability. By providing a second tooth segment on the inner wall of the cap removal gear that meshes with the first tooth segment on the gripper, power is supplied to the gripper's rotation angle, and the gripper's rotation stroke is limited, forming a reciprocating motion to facilitate clamping and releasing the electrode cap. When a welding robot has two opposing electrode connecting rods, the two opposing electrode caps need to be replaced. The two opposing electrode caps are in upright and inverted positions. The postures of the electrode connecting rods and electrode caps vary depending on welding requirements. After the electrode cap is fitted onto the electrode connecting rod, the axis of the electrode cap may be at an angle to the horizontal or vertical direction, and the electrode cap on the electrode connecting rod is generally tilted. Traditional linear motion components cannot meet the angle requirements when disassembling the electrode cap, and using a robotic arm would be costly. There is an urgent need for a swing arm cap changing machine that can meet the angle requirements when changing electrode caps, stably change upright and inverted electrode caps, and has a low cost. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a swing arm cap changing machine that can meet the angle requirements when changing electrode caps, stably change upright and inverted electrode caps, and has a low cost.

[0004] To solve the above-mentioned technical problems, the invention includes a frame, characterized in that: the frame is provided with a rotatable shaft, the frame is provided with a drive component for driving the shaft to rotate, the shaft is provided with a mounting bracket, the mounting bracket is provided with a cap-mounting mechanism for supporting upright electrode caps and inverted electrode caps, the mounting bracket is provided with a clamping mechanism for clamping the upright electrode caps and inverted electrode caps located on two opposing electrode connecting rods and being able to release the upright electrode caps and inverted electrode caps, the mounting bracket is provided with a first sensor for detecting the electrode cap removal state on the electrode connecting rods, and also includes a detection mechanism for detecting the rotational position of the mounting bracket.

[0005] With the above structure, the frame can be connected to an external linear motion assembly. The drive unit drives the rotating shaft to rotate, and the rotation of the shaft causes the mounting frame to swing, thereby adjusting the angles of the cap-attaching mechanism and the clamping mechanism. The detection mechanism detects whether the position of the mounting frame after swinging is in place, ensuring operational accuracy. After the angle of the clamping mechanism is adjusted, it can adapt to the posture of the electrode cap on the electrode connecting rod. The frame approaches an upright electrode cap on one electrode connecting rod or an inverted electrode cap on another electrode connecting rod. The clamping mechanism clamps the upright or inverted electrode cap. Then, the frame moves away from the electrode connecting rod, and the clamping mechanism, still holding the electrode cap, moves with the frame. The electrode cap detaches from the electrode connecting rod and reaches the electrode cap collection area. The clamping mechanism releases the electrode cap, allowing it to detach from the clamping mechanism. The drive unit can then cause the mounting frame to swing so that the electrode cap can fall freely from the clamping mechanism. After removing the upright or inverted electrode cap, the frame moves to the first sensor to detect whether the electrode cap on the electrode connecting rod has been successfully removed. The capping mechanism carries new upright and inverted electrode caps. After the electrode cap on the electrode connecting rod is successfully removed, the drive unit can drive the rotating shaft to adjust the posture of the capping mechanism, so that the upright or inverted electrode cap of the capping mechanism can be fitted onto the electrode connecting rod. The frame reaches the electrode connecting rod where the upright or inverted electrode cap on the capping mechanism is close to the electrode connecting rod with the removed electrode cap. As the frame, capping mechanism and electrode connecting rod continue to approach, the new upright or inverted electrode cap is fitted onto the electrode connecting rod. The upright and inverted electrode caps on the two electrode connecting rods are clamped by clamping mechanisms. The capping mechanism provides new upright and inverted electrode caps for the two electrode connecting rods. Continuous operation ensures stable welding operations. The drive unit drives the rotating shaft to rotate to meet the angle requirements when changing electrode caps. The clamping mechanism and capping mechanism stably replace the upright and inverted electrode caps on the two electrode connecting rods. Compared with using traditional robotic arms to move and change angles for cap replacement, this device has a lower overall cost. This device is highly automated and the cap-changing operation is efficient.

[0006] Furthermore, the cap-loading mechanism includes a receiving box connected to the mounting frame. The receiving box has two recessed material channels on opposite sides, each channel being used to carry a number of upright electrode caps and a number of inverted electrode caps. The receiving box has two pushing components and two stop members for holding the electrode caps in the material channels and preventing them from detaching from the material channels. The pushing components are used to push the electrode caps in the material channels toward the stop members. The receiving box has a discharge hole on the side near the stop members that connects the material channels to the external environment. The receiving box has anti-detachment components on opposite sides, which prevent the electrode caps against the stop members from falling off from the discharge hole before being inserted into the electrode connecting rod. By setting up a cap-loading mechanism, two feed channels respectively carry several arranged upright and inverted electrode caps. When the electrode caps that reach the discharge port and abut against the stop are fitted onto the electrode connecting rod, the pushing component pushes the arranged electrode caps in the feed channel toward the discharge port until the electrode cap located on the outermost part of the feed channel abuts against the stop. By setting up an anti-detachment component, the electrode caps abutting against the stop are prevented from detaching from the feed port and from the receiving box before being fitted onto the electrode connecting rod when the receiving box moves or swings under the drive of the frame and mounting frame. The anti-detachment component, the stop, and the pushing component reliably ensure the posture of the electrode caps in the feed channel.

[0007] Furthermore, the clamping mechanism includes a base connected to the mounting bracket. The base is equipped with a drive assembly and a mounting chamber. A first and a second cap-removing claw assembly are rotatably connected to the base within the mounting chamber. These claw assemblies can clamp and release the upright and inverted electrode caps on the two electrode connecting rods by rotating on their own. The drive assembly drives the first and second claw assemblies to rotate. By providing this clamping mechanism, the first and second claw assemblies can disassemble the upright and inverted electrode caps respectively. Compared to using a single claw assembly to disassemble both the upright and inverted electrode caps, the two sets of claw assemblies (first and second) handle the cap removal operation for both caps separately, resulting in less overall wear and a longer service life.

[0008] Furthermore, the detection mechanism includes a coupling connected to the rotating shaft, the frame is equipped with an encoder, the rotating shaft is connected to the input end of the encoder via the coupling, and the encoder is electrically connected to an external controller; Alternatively, the detection mechanism may include a support frame fixed to a frame, the support frame having a first receiving groove, a first rotatable signal disk being slidably connected to the support frame through the first receiving groove, a locking frame being slidably connected to the frame through a sliding member, the locking frame having a second receiving groove that can abut against the first signal disk, the axis of the first signal disk being collinear with the axis of rotation, the support frame and the locking frame being detachably connected by a number of fasteners, the mounting bracket having a first protrusion, the first signal disk having a second sensor that can detect the position of the first protrusion, the second sensor being electrically connected to an external controller; Alternatively, the detection mechanism may include a second signal disk mounted on a mounting frame, with the axis of the second signal disk collinear with the axis of the rotating shaft. The frame is provided with a second protrusion, and the second signal disk is surrounded by several third sensors, which are electrically connected to an external controller. The third sensors can reach a position close to the second protrusion when the mounting frame rotates. An encoder can detect the rotation angle of the rotating shaft, thereby detecting whether the mounting frame has reached a preset position. By setting up a support frame, a first signal disk, a sliding component, a locking frame, a first protrusion, and a second sensor, the support frame and locking frame can be unlocked by removing fasteners. The operator can then adjust the position of the second sensor by rotating the first signal disk to correspond to the preset swing position of the mounting frame. After adjustment, the support frame and locking frame are locked by fasteners, locking the positions of the first signal disk and the second sensor. When the drive component drives the rotating shaft to rotate until the mounting frame swings to the preset position, the second sensor detects the first protrusion, thereby detecting the rotation angle of the rotating shaft and whether the mounting frame has reached the preset position. By setting a second signal disk, a second protrusion, and a third sensor, when the shaft rotates to a preset position, some of the third sensors sequentially reach a position close to the second protrusion and send a signal to the external controller after detecting the second protrusion, thereby detecting the rotation angle of the shaft and whether the mounting bracket has reached the preset position.

[0009] Furthermore, the first cap removal claw assembly includes several first claw bodies rotatably connected to the base, with the several first claw bodies arranged in a ring around the base. Each first claw body has a first clamping tooth for contacting an upright electrode cap and a first lever. The second cap removal claw assembly includes several second claw bodies rotatably connected to the base, with the several second claw bodies arranged in a ring around the base. Each second claw body has a second clamping tooth for contacting an inverted electrode cap and a second lever. The driving assembly includes a power component capable of outputting rotational force at its output end. The base is rotatably connected to a first driving disk, and the power component is driven and connected to the first driving disk. The first driving disk has a first slot for accommodating a first lever. The base is rotatably connected to a second driving disk, and the power component or the first driving disk is driven and connected to the second driving disk. The second driving disk has a second slot for accommodating a second lever. By setting a first cap removal claw assembly, the power component drives the first drive disk to rotate. The rotating first drive disk drives several first claw bodies to rotate through several first slots. After the several first claw bodies rotate, the first clamping teeth on the several first claw bodies approach each other. The first clamping teeth can contact the upright electrode cap on the electrode connecting rod to complete the clamping of the upright electrode cap. When the power component drives the first drive disk to reverse, after the several first claw bodies reverse, the first clamping teeth on the several first claw bodies can move away from each other, so that the first clamping teeth disengage from the upright electrode cap to complete the release of the upright electrode cap. By setting a second cap removal claw assembly, the power component or the first drive disk drives the second drive disk to rotate. The rotating second drive disk drives several second claw bodies to rotate through several second slots. After the several second claw bodies rotate, the second clamping teeth on the several second claw bodies approach each other, and the second clamping teeth can contact the inverted electrode cap on the electrode connecting rod to complete the clamping of the inverted electrode cap. When the power component or the first drive disk drives the second drive disk to reverse, after the several second claw bodies reverse, the second clamping teeth on the several second claw bodies can move away from each other, so that the second clamping teeth disengage from the inverted electrode cap to complete the release of the inverted electrode cap.

[0010] Furthermore, the pushing component includes a first elastic element disposed on the receiving box, and the receiving box is elastically connected to a push rod via the first elastic element. The push rod can push the electrode caps in the material channel toward the discharge hole. By setting up the pushing component, the push rod can apply elastic pressure to the electrode caps in the material channel through the first elastic element, thereby pushing the electrode caps in the material channel toward the stop. At the same time, the elasticity of the first elastic element ensures the overall shape and surface quality of the electrode caps in the material channel, preventing deformation between electrode caps or between electrode caps and the stop due to large pushing impacts.

[0011] Furthermore, the anti-detachment component includes a top pressing block and a second elastic element disposed on the receiving box. The top pressing block includes a body rotatably connected to the receiving box, and a top plate fixedly disposed on the body. One side of the top plate abuts against the receiving box, and the other side is elastically connected to the receiving box via the second elastic element. The side of the top plate abutting against the receiving box is located outside the electrode cap that reaches the discharge hole and abuts against the stop member. The end of the side of the top plate abutting against the receiving box is located between the inner and outer surfaces of the electrode cap that reaches the discharge hole and abuts against the stop member. By providing the anti-detachment component, there is a gap between the side of the top plate abutting against the receiving box and the electrode cap that reaches the discharge hole and abuts against the stop member, preventing interference between the top plate and the electrode cap. The end of the side of the top plate abutting against the receiving box is located between the inner and outer surfaces of the electrode cap that reaches the discharge hole and abuts against the stop member, which can prevent interference between the top plate and the electrode connecting rod when the electrode cap is fitted onto the electrode connecting rod. The second elastic element ensures that the top plate is securely pressed against the receiving box. In its natural state, the elastic force of the second elastic element prevents the electrode caps on the top plate from contacting and causing the top plate to flip. When the electrode caps are fitted onto the electrode connecting rod, and the frame and receiving box move away from the electrode connecting rod, the electrode caps on the electrode connecting rod contact the top plate and cause the top plate to flip, preventing interference between the top plate and the electrode caps on the electrode connecting rod. At this time, the second elastic element stores energy. When the top plate disengages from the electrode caps on the electrode connecting rod, the top plate returns to its original position and presses against the receiving box on one side.

[0012] Furthermore, the stop member has a contact surface for contacting the outer side of the electrode cap. The contact surface is arc-shaped. The stop member is rotatably connected to the receiving box and is elastically connected to the receiving box via a third elastic member. The arc-shaped contact surface ensures stable contact between the stop member and the electrode cap. The third elastic member buffers the impact of the electrode cap pushed by the pushing component onto the stop member, ensuring the overall shape and surface quality of the electrode cap and preventing deformation between the electrode cap and the stop member due to large thrust impacts.

[0013] Furthermore, the mounting frame includes a buffer frame and a fourth elastic element. The buffer frame is elastically connected to the mounting frame via the fourth elastic element. The buffer frame has a third slot that is recessed from the outer surface to the inner surface. The receiving box is inserted into the buffer frame through the third slot. The buffer frame has a fifth elastic element that can hold the receiving box in place within the third slot and prevent the receiving box from detaching from the slot. The fourth and fifth elastic elements are located on opposite sides of the receiving box. When the fourth and fifth elastic elements exert elastic force on the buffer frame and the receiving box respectively, the elastic force of the fourth elastic element and the elastic force of the fifth elastic element are in opposite directions. The directions of the elastic forces exerted by the fourth and fifth elastic elements on the buffer frame and the receiving box are parallel to the axial extension direction of the electrode cap in the material channel. By setting the buffer frame, the fourth elastic element, and the fifth elastic element, the receiving box can float, which can buffer the impacts on the receiving box from the two electrode connecting rods when the electrode caps are installed upright and inverted, respectively, ensuring the structural integrity of the electrode connecting rods and the receiving box and ensuring the surface quality of the electrode caps.

[0014] Furthermore, the receiving box is equipped with a detection hole connecting the material channel to the external environment, and the buffer frame is equipped with a fourth sensor that passes through the detection hole and detects the presence of electrode caps in the material channel. The fourth sensor is electrically connected to an external controller, and an elastic pad is provided on the side of the material channel near the discharge port to abut the end of the electrode cap. By setting up the detection hole and the fourth sensor, the remaining amount of electrode caps in the material channel can be detected. When the fourth sensor detects that there are no electrode caps at the current position of the material channel, the operator can promptly add electrode caps to the receiving box, ensuring the continuity of cap replacement and welding operations. The elastic pad buffers the impact of the two electrode connecting rods on the electrode caps when the two electrode connecting rods are respectively fitted with upright and inverted electrode caps, ensuring the overall shape and surface quality of the electrode caps.

[0015] In summary, the present invention has the advantages of reasonable structure and convenient use. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a top view of the structure of the present invention; Figure 3 yes Figure 2 Enlarged view of a portion of area A in the middle; Figure 4 This is a structural schematic diagram of the mounting bracket, the capping mechanism, the clamping mechanism, the first sensor, the buffer bracket, the fourth elastic element, the fifth elastic element, and the fourth sensor. Figure 5 This is a three-dimensional structural diagram of the cap-loading mechanism; Figure 6 This is a structural schematic diagram of the explosion effect of the capping mechanism; Figure 7 yes Figure 6 Schematic diagram of the structure of the central pressure block; Figure 8 yes Figure 6 A structural diagram from another angle; Figure 9 This is a front view structural diagram of the housing, pushing components, stoppers, buffer pads, and top plate; Figure 10 yes Figure 9 Enlarged view of a section in area B; Figure 11 yes Figure 9 A magnified view of a section in area C; Figure 12 yes Figure 11 Schematic diagram of the stop stop component; Figure 13 This is a three-dimensional structural diagram of the clamping mechanism; Figure 14 yes Figure 13 A magnified view of a section in area D; Figure 15 yes Figure 13 A magnified view of a section in area E; Figure 16 This is a three-dimensional structural diagram of the first claw body; Figure 17 This is a three-dimensional structural diagram of the second claw body; Figure 18 This is a three-dimensional structural diagram of the buffer frame and the fourth sensor; Figure 19 This is a three-dimensional structural schematic diagram of another embodiment of the present invention; Figure 20 yes Figure 19 Enlarged view of a section in the F region; Figure 21 This is a three-dimensional structural schematic diagram of another embodiment of the present invention; Figure 22 yes Figure 22 A magnified view of a section in the G region; Figure 23 This is a schematic diagram of the structure of two electrode connecting rods, an upright electrode cap, and an inverted electrode cap in the prior art; Figure 24 It is a structural diagram of the frame, mounting bracket, cap-mounting mechanism, dial and pointer; In the diagram: 1. Frame; 11. Second protrusion; 2. Rotating shaft; 3. Drive component; 4. Mounting bracket; 41. First protrusion; 42. Fourth elastic component; 5. Capping mechanism; 51. Receiving box; 511. Material channel; 5111. Elastic pad; 512. Stop component; 5121. Contact surface; 513. Discharge hole; 52. Pushing assembly; 521. First elastic component; 522. Push rod; 53. Anti-detachment assembly; 531. Top pressure block; 5311. Body; 5312. Top plate; 532. Second elastic component; 6. Clamping mechanism; 61. Base; 62. Drive assembly; 621. Power component; 622. First drive plate; 6221. First slot; 623. Second drive plate. 6231, Second slot; 63, First cap removal claw assembly; 631, First claw body; 6311, First clamping teeth; 6312, First lever; 64, Second cap removal claw assembly; 641, Second claw body; 6411, Second clamping teeth; 6412, Second lever; 7, First sensor; 8, Detection mechanism; 81a, Coupling; 82a, Encoder; 81b, Support frame; 82b, First signal disk body; 83b, Locking frame; 84b, Second sensor; 81c, Second signal disk body; 82c, Third sensor; 9, Buffer frame; 91, Third slot; 92, Fifth elastic element; 93, Fourth sensor; 100, Dial; 101, Pointer. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention and therefore showing only the components relevant to the invention. For ease of understanding, Figure 1 The top part is the top part of the invention. Figure 1 The following is the lower part of the invention. Figure 2 The top is the front side of the invention. Figure 2 The bottom is the rear side of the invention. Figure 2 The left side is the left side of the invention. Figure 2 The right side is the right side of the present invention. Figure 23 The diagram shows two electrode links, an upright electrode cap, and an inverted electrode cap in the prior art. The upright electrode cap and the inverted electrode cap are respectively fitted onto the two electrode links. The difference between the upright electrode cap and the inverted electrode cap in terms of their orientation is that they are symmetrical to each other. Example 1

[0018] Reference Figures 1 to 4The present invention includes a frame 1, which has a rotatable shaft 2 rotatably connected to the frame 1 via a bearing seat. The frame 1 has a drive component 3 for driving the shaft 2 to rotate, the drive component 3 being able to rotate the shaft 2 by a preset angle, and the drive component 3 may be a servo motor. The shaft 2 has a mounting bracket 4, which can be fixed to the shaft 2 by welding or fasteners, and the mounting bracket 4 may be made of several octagonal tubular profiles. The mounting bracket 4 has a clamping mechanism 6, which is used to clamp and release upright and inverted electrode caps located on two opposing electrode connecting rods. The mounting bracket 4 has a first sensor 7 for detecting the state of electrode cap removal on the electrode connecting rods. The present invention also includes a detection mechanism 8 for detecting the rotational position of the mounting bracket 4. In this embodiment, the detection mechanism 8 includes a coupling 81a connected to the rotating shaft 2, and an encoder 82a is provided on the frame 1. The rotating shaft 2 is connected to the input end of the encoder 82a through the coupling 81a, and the encoder 82a is electrically connected to an external controller. By setting the encoder 82a, the rotation angle of the rotating shaft 2 can be detected, thereby realizing the detection of whether the mounting bracket 4 has reached the preset position.

[0019] Reference Figures 1 to 12 The mounting frame 4 is equipped with a cap-loading mechanism 5 for carrying upright and inverted electrode caps. The cap-loading mechanism 5 includes a receiving box 51 connected to the mounting frame 4. The receiving box 51 has two recessed channels 511 on opposite sides, each channel 511 carrying a number of upright electrode caps and a number of inverted electrode caps. The two channels 511 are located on the front and rear sides of the receiving box 51, respectively. Baffles are detachably connected to the front and rear sides of the receiving box 51 by screws. The baffles prevent the electrode caps from falling out of the channels 511, and operators can add electrode caps to the channels 511 by removing the baffles.

[0020] Reference Figures 1 to 12 and Figure 18Preferably, the mounting frame 4 includes a buffer frame 9 and a fourth elastic element 42. The buffer frame 9 is elastically connected to the mounting frame 4 via the fourth elastic element 42, which can be made of polyurethane or a compression spring. The fourth elastic element 42 can be locked to the mounting frame 4 and the buffer frame 9 with screws. The buffer frame 9 has a third slot 91 that is recessed from the outer surface to the inner surface. The receiving box 51 is inserted into the buffer frame 9 through the third slot 91. The buffer frame 9 has a fifth elastic element 92 that can hold the receiving box 51 in the third slot 91 and prevent the receiving box 51 from detaching from the third slot 91. The fifth elastic element 92 can be made of polyurethane or rubber. The fifth elastic element 92 is mounted on a quick clamp, which is fixed to the buffer frame 9. The operator can release the pressure of the fifth elastic element 92 on the receiving box 51 by operating the quick clamp, thereby allowing the receiving box 51 to be easily removed from the buffer frame 9. The fourth elastic element 42 and the fifth elastic element 92 are located on opposite front and rear sides of the receiving box 51. When the fourth elastic element 42 and the fifth elastic element 92 exert elastic force on the buffer frame 9 and the receiving box 51 respectively, the elastic force of the fourth elastic element 42 is in the opposite direction to that of the fifth elastic element 92. The directions of the elastic forces exerted by the fourth elastic element 42 and the fifth elastic element 92 on the buffer frame 9 and the receiving box 51 respectively are parallel to the axial extension direction of the electrode cap in the material channel 511. For example, when the rotating shaft 2 rotates to the point where the axial direction of the electrode cap in the material channel 511 is parallel to the front and rear horizontal direction, the direction of the elastic force exerted by the fourth elastic element 42 on the buffer frame 9 is horizontal from front to back, and the direction of the elastic force exerted by the fifth elastic element 92 on the receiving box 51 is horizontal from back to front and back. The directions of the two elastic forces are both parallel to the front and rear horizontal direction and are opposite. By incorporating a buffer frame 9, a fourth elastic element 42, and a fifth elastic element 92, the receiving box 51 can float, buffering the impacts from the two electrode connecting rods on the receiving box 51 in two directions when the two electrode connecting rods are respectively fitted with upright and inverted electrode caps. This ensures the structural integrity of the electrode connecting rods and the receiving box 51, and guarantees the surface quality of the electrode caps. The receiving box 51 may be equipped with a limiting element, and the buffer frame 9 has a sliding groove for accommodating the limiting element. The sliding groove and the limiting element are in clearance fit, which restricts the movement of the receiving box 51 on the buffer frame 9 except in the direction of the elastic force of the fifth elastic element 92, ensuring the stability of the receiving box 51 on the buffer frame 9.

[0021] Reference Figures 1 to 12The receiving box 51 is equipped with two pushing components 52. The receiving box 51 also has two stop members 512 for abutting the electrode caps inside the material channel 511 and preventing them from detaching from the material channel 511. The pushing components 52 are used to push several electrode caps inside the material channel 511 toward the stop members 512. The receiving box 51 has a discharge hole 513 on the side near the stop members 512 that connects the material channel 511 to the external environment. Anti-detachment components 53 are provided on opposite front and rear sides of the receiving box 51. The anti-detachment components 53 prevent the electrode caps abutting the stop members 512 from detaching from the discharge hole 513 before being inserted into the electrode connecting rod. By setting up the cap-loading mechanism 5, the two feed channels 511 respectively carry a number of arranged upright electrode caps and inverted electrode caps. When the electrode caps that reach the discharge hole 513 and abut against the stop member 512 are fitted onto the electrode connecting rod, the pushing component 52 pushes the arranged electrode caps in the feed channel 511 toward the discharge hole 513 until the electrode cap located on the outermost side of the feed channel 511 abuts against the stop member 512. By setting up the anti-detachment component 53, the electrode caps abutting against the stop member 512 are prevented from detaching from the discharge hole 513 and from the receiving box 51 before being fitted onto the electrode connecting rod when the receiving box 51 moves or swings under the drive of the frame 1 and the mounting frame 4. The anti-detachment component 53, the stop member 512 and the pushing component 52 reliably ensure the posture of the electrode caps in the feed channel 511.

[0022] Reference Figures 1 to 12The pushing component 52 includes a first elastic element 521 disposed on the receiving box 51. The receiving box 51 is elastically connected to a push rod 522 via the first elastic element 521. The push rod 522 can push the electrode caps in the material channel 511 toward the discharge hole 513. The first elastic element 521 can be a compression spring. One end of the first elastic element 521 abuts against the receiving box 51 and the other end abuts against the push rod 522. The push rod 522 abuts against the electrode cap farthest from the discharge hole 513 among a plurality of electrode caps in the material channel 511. By setting the pushing component 52, the push rod 522 can apply elastic pressure to the electrode caps in the material channel 511 via the first elastic element 521, thereby pushing the electrode caps in the material channel 511 toward the stop member 512. At the same time, the elastic force of the first elastic element 521 ensures the overall shape and surface quality of the electrode caps in the material channel 511, preventing deformation between electrode caps and between electrode caps and the stop member 512 due to large pushing impact. The stop member 512 has a contact surface 5121 for contacting the outer side of the electrode cap. The contact surface 5121 is arc-shaped. The stop member 512 is rotatably connected to the receiving box 51 via a cylindrical shaft. The stop member 512 is elastically connected to the receiving box 51 via a third elastic member. The third elastic member can be a torsion spring, with one end abutting against the receiving box 51 and the other end abutting against the stop member 512. The arc-shaped contact surface 5121 ensures stable contact between the stop member 512 and the electrode cap. The third elastic member can buffer the impact of the electrode cap pushed by the pushing component 52 to the stop member 512, ensuring the overall shape and surface quality of the electrode cap and preventing deformation between the electrode cap and the stop member 512 due to large thrust impact.

[0023] Reference Figures 1 to 12The anti-detachment component 53 includes a top pressing block 531 and a second elastic element 532 disposed on the receiving box 51. The top pressing block 531 includes a body 5311 rotatably connected to the receiving box 51 via a cylindrical shaft. A top plate 5312 is fixedly mounted on the body 5311. One side of the top plate 5312 abuts against the receiving box 51, and the other side is elastically connected to the receiving box 51 via the second elastic element 532. The second elastic element 532 may be a compression spring, with one end abutting against the receiving box 51 and the other end abutting against the top plate 5312. The side of the top plate 5312 abutting against the receiving box 51 is located outside the electrode cap that reaches the discharge hole 513 and abuts against the stop member 512, that is, the side of the top plate 5312 abutting against the receiving box 51 and the electrode cap that reaches the discharge hole 513 and abuts against the stop member 512 have a small gap in the axial direction of the electrode cap. The end of the top plate 5312 that abuts against the receiving box 51 is located between the inner and outer sides of the electrode cap that reaches the discharge hole 513 and abuts against the stop member 512. That is, the end of the top plate 5312 that abuts against the receiving box 51 is located between the inner and outer sides of the electrode cap in the radial direction of the electrode cap that abuts against the stop member 512. The end of the top plate 5312 that abuts against the receiving box 51 avoids the mounting hole of the electrode cap that abuts against the stop member 512. The mounting hole is the hole used to fit the electrode cap onto the electrode connecting rod.

[0024] By setting the anti-detachment component 53, there is a gap between the side of the top plate 5312 that abuts against the receiving box 51 and the electrode cap that reaches the discharge hole 513 and abuts against the stop member 512, preventing interference between the top plate 5312 and the electrode cap; the end of the side of the top plate 5312 that abuts against the receiving box 51 is located between the inner and outer sides of the electrode cap that reaches the discharge hole 513 and abuts against the stop member 512, which can prevent interference between the top plate 5312 and the electrode connecting rod when the electrode cap is fitted onto the electrode connecting rod. The second elastic member 532 ensures that the top plate 5312 is firmly abutted against the receiving box 51, and in the natural state of the second elastic member 532, the elastic force of the second elastic member 532 prevents the electrode cap that contacts the top plate 5312 from flipping over. When the electrode cap is installed on the electrode connecting rod, and the frame 1 and the housing 51 are far away from the electrode connecting rod, the electrode cap on the electrode connecting rod contacts the top plate 5312 and causes the top plate 5312 to flip, preventing the top plate 5312 from interfering with the electrode cap on the electrode connecting rod. At this time, the second elastic element 532 stores energy. When the top plate 5312 is no longer in contact with the electrode cap on the electrode connecting rod, the top plate 5312 returns to one side and rests against the housing 51.

[0025] Reference Figures 1 to 12 and Figure 18The receiving box 51 is provided with a detection hole connecting the material channel 511 to the external environment. The buffer frame 9 is provided with a fourth sensor 93 that passes through the detection hole and detects the presence status of electrode caps in the material channel 511. The fourth sensor 93 is electrically connected to an external controller. The fourth sensor 93 is located on the side of the buffer frame 9 near the stop member 512. By setting the detection hole, the fourth sensor 93 can detect the remaining amount of electrode caps in the material channel 511. When the fourth sensor 93 detects that there are no electrode caps at the current position of the material channel 511, the operator can promptly add electrode caps to the receiving box 51, ensuring the continuity of cap replacement and welding operations. The side of the material channel 511 near the discharge hole 513 is provided with an elastic pad 5111 that can abut against the end of the electrode cap. The elastic pad 5111 can be made of rubber. The material channel 511 has a groove for accommodating the elastic pad 5111. The elastic pad 5111 is installed in the groove and the outer surface of the elastic pad 5111 does not protrude above the material channel 511, preventing the elastic pad 5111 from interfering with the electrode caps in the material channel 511. By setting an elastic pad 5111 to buffer the impact of the two electrode connecting rods on the electrode cap when the two electrode connecting rods are respectively fitted with the upright electrode cap and the inverted electrode cap, the overall shape and surface quality of the electrode cap are ensured.

[0026] Reference Figures 1 to 4 and Figures 13 to 17 The clamping mechanism 6 includes a base 61 connected to the mounting bracket 4, and a drive assembly 62 is provided on the base 61. The base 61 has a mounting chamber, and a first cap-removing claw assembly 63 and a second cap-removing claw assembly 64 are rotatably connected to the base 61 within the mounting chamber. The first cap-removing claw assembly 63 and the second cap-removing claw assembly 64 can clamp and release the upright and inverted electrode caps on the two electrode connecting rods by their own rotation. The drive assembly 62 is used to drive the first cap-removing claw assembly 63 and the second cap-removing claw assembly 64 to rotate. By setting up the clamping mechanism 6, the first cap-removing claw assembly 63 and the second cap-removing claw assembly 64 can disassemble the upright and inverted electrode caps respectively. Compared to one set of cap-removing claw assemblies disassembling the upright and inverted electrode caps separately, the two sets of cap-removing claw assemblies 63 and 64 respectively reduce the burden of cap removal operations, resulting in slower overall wear and a longer service life.

[0027] Reference Figures 1 to 4 and Figures 13 to 17The first cap removal claw assembly 63 includes several first claw bodies 631 rotatably connected to the base 61. The first claw bodies 631 are rotatably connected to the base 61 via a cylindrical shaft. The several first claw bodies 631 are arranged in a ring around the base 61. The base 61 may be provided with limiting blocks or limiting protrusions for restricting the first claw bodies 631 to their maximum forward and reverse rotation positions around the cylindrical shaft. Each first claw body 631 has first clamping teeth 6311 for contacting the upright electrode cap, and the first clamping teeth 6311 are arranged in a toothed pattern. Each first claw body 631 has a first lever 6312. The second cap removal claw assembly 64 includes several second claw bodies 641 rotatably connected to the base 61. The second claw bodies 641 are rotatably connected to the base 61 via a cylindrical shaft. The base 61 may be provided with limiting blocks or limiting protrusions for restricting the second claw bodies 641 to their maximum forward and reverse rotation positions around the cylindrical shaft. The several second claw bodies 641 are arranged in a ring around the base 61. The second claw body 641 is provided with a second clamping tooth portion 6411 for contacting the inverted electrode cap, the second clamping tooth portion 6411 being arranged in a convex tooth shape. The second claw body 641 is provided with a second lever 6412.

[0028] Reference Figures 1 to 4 and Figures 13 to 17 The drive assembly 62 includes a power component 621 capable of outputting rotational force at its output end. The power component 621 can be a servo motor or a pneumatic motor. A first drive disk 622 is rotatably connected to the base 61 via a plane bearing, and the power component 621 is driven to the first drive disk 622. The first drive disk 622 has a first slot 6221 for accommodating a first lever 6312. A second drive disk 623 is rotatably connected to the base 61, and either the power component 621 or the first drive disk 622 is driven to the second drive disk 623. The second drive disk 623 has a second slot 6231 for accommodating a second lever 6412. The outer surfaces of the first drive disc 622 and the second drive disc 623 may be provided with teeth, which are used for transmission through tooth meshing. The base 61 may be provided with a transition gear for transmitting the rotational force of the power component 621 to the first drive disc 622. The output end of the power component 621 is provided with a power gear. The rotational force of the power component 621 is transmitted to the first drive disc 622 through the power gear and the transition gear. The first drive disc 622 then transmits the rotational force to the second drive disc 623 through its teeth. Alternatively, the power component 621 can drive the first drive disc 622 and the second drive disc 623 respectively through two sets of synchronous pulleys and synchronous belt mechanisms. In use, when the first cap removal claw assembly 63 rotates to clamp or release the upright electrode cap, the second cap removal claw assembly 64 operates without load. Similarly, when the second cap removal claw assembly 64 rotates to clamp or release the inverted electrode cap, the first cap removal claw assembly 63 operates without load.

[0029] By setting the first cap removal claw assembly 63, the power component 621 drives the first drive disk 622 to rotate. The rotating first drive disk 622 drives the first claw bodies 631 to rotate through the first slots 6221. After the first claw bodies 631 rotate, the first clamping teeth 6311 on the first claw bodies 631 move closer to each other and can contact the upright electrode cap on the electrode connecting rod to complete the clamping of the upright electrode cap. When the power component 621 drives the first drive disk 622 to reverse, the first clamping teeth 6311 on the first claw bodies 631 move further away from each other after the first claw bodies 631 reverse, so that the first clamping teeth 6311 disengage from the upright electrode cap and complete the release of the upright electrode cap. By setting a second cap removal claw assembly 64, the power component 621 or the first drive disk 622 drives the second drive disk 623 to rotate. The rotating second drive disk 623 drives a number of second claw bodies 641 to rotate through a number of second slots 6231. After the number of second claw bodies 641 rotate, the second clamping teeth 6411 on the number of second claw bodies 641 approach each other and can contact the inverted electrode cap on the electrode connecting rod to complete the clamping of the inverted electrode cap. When the power component 621 or the first drive disk 622 drives the second drive disk 623 to reverse, after the number of second claw bodies 641 reverse, the second clamping teeth 6411 on the number of second claw bodies 641 can move away from each other, so that the second clamping teeth 6411 disengage from the inverted electrode cap and complete the release of the inverted electrode cap. Example 2

[0030] Reference Figure 19 , Figure 20 This embodiment provides another version with the same basic structure as described above. Specifically, the detection mechanism 8 has a different structure. The detection mechanism 8 includes a support frame 81b fixed to the frame 1. The support frame 81b has a first receiving groove, which is a downwardly recessed arc groove. A rotatable first signal disk 82b is slidably connected to the support frame 81b through the first receiving groove. The first signal disk 82b and the first receiving groove are in clearance fit. A locking frame 83b that can move closer to and away from the support frame 81b is slidably connected to the frame 1 through a sliding member. The sliding member can be a guide rail slider mechanism. The locking frame 83b has a second receiving groove that can abut against the first signal disk 82b. The second receiving groove is an upwardly recessed arc groove. The axis of the first signal disk 82b is collinear with the axis of the rotating shaft 2. The support frame 81b and the locking frame 83b are detachably connected by several fasteners, which can be screws and nuts. Mounting bracket 4 is provided with a first protrusion 41, and the first signal disk 82b is provided with a second sensor 84b that can detect the position of the first protrusion 41. The second sensor 84b is electrically connected to an external controller.

[0031] By setting up a support frame 81b, a first signal disk 82b, a sliding component, a locking frame 83b, a first protrusion 41, and a second sensor 84b, after the support frame 81b and the locking frame 83b are unlocked by removing the fasteners, the operator can adjust the position of the second sensor 84b to correspond to the preset swing position of the mounting frame 4 by rotating the first signal disk 82b. After the adjustment is completed, the support frame 81b and the locking frame 83b are locked by fasteners, and the positions of the first signal disk 82b and the second sensor 84b are locked. When the driving component 3 drives the rotating shaft 2 to rotate until the mounting frame 4 swings to the preset position, the second sensor 84b detects the first protrusion 41, thereby realizing the detection of the rotation angle of the rotating shaft 2 and the detection of whether the mounting frame 4 has reached the preset position. Example 3

[0032] Reference Figure 21 , Figure 22 This embodiment provides another implementation with the same basic structure as described above. Specifically, the detection mechanism 8 has a different structure. The detection mechanism 8 includes a second signal disk 81c mounted on the mounting frame 4, with the axis of the second signal disk 81c collinear with the axis of the rotating shaft 2. The second signal disk 81c can be fixed to the mounting frame 4 with fasteners. The frame 1 is provided with a second protrusion 11, and the second signal disk 81c is surrounded by a plurality of third sensors 82c. The plurality of third sensors 82c are electrically connected to an external controller, and the third sensors 82c can reach a position close to the second protrusion 11 when the mounting frame 4 rotates. By setting the second signal disk 81c, the second protrusion 11, and the third sensors 82c, when the rotating shaft 2 rotates to a preset position, some of the third sensors 82c sequentially reach a position close to the second protrusion 11 and, after detecting the second protrusion 11, send a signal to the external controller, thereby detecting the rotation angle of the rotating shaft 2 and detecting whether the mounting frame 4 has reached the preset position. The first sensor 7, the second sensor 84b, and the third sensor 82c can be either proximity switches or photoelectric switches, while the fourth sensor 93 can be a photoelectric switch.

[0033] In practical use, because the mounting bracket 4, capping mechanism 5, and clamping mechanism 6 have a certain weight, the rotating shaft 2 may experience rotational errors due to inertia when the driving component 3 drives it to rotate. For example, the preset rotation angle of the rotating shaft 2 might be 40 degrees, while the actual rotation angle is 41 degrees. Small rotational errors do not affect the normal use of the device. However, to ensure the reliability and stability of the device after long-term use, the rotational error should be corrected. (Refer to...) Figure 24Optionally, the present invention includes an angle correction mechanism, which includes a dial 100 fixed on the frame 1, a pointer 101 fixed on the mounting bracket 4, and a detector. The dial 100 is coaxial with the rotating shaft 2, and the end face of the dial 100 is provided with scale lines. The pointer 101 can point to the scale lines on the dial 100. The detector is used to detect the pointing position of the pointer 101. The detector is electrically connected to an external controller, and the external controller is connected to the drive unit 3. The detector can be an industrial camera. When the mounting bracket 4 swings or rotates around the rotating shaft 2, the pointer 101 points to the scale line, thus showing the actual swing or rotation angle of the mounting bracket 4. When an industrial camera is used as the detector, the detector can be connected to the frame 1. The industrial camera and the image processing algorithm work together to obtain the actual rotation angle of the pointer 101 and the rotating shaft 2. Alternatively, a laser displacement sensor can be used as the detector. When a laser displacement sensor is used, the detector can be connected to the frame 1, with the irradiation end of the detector facing the pointer 101. When the mounting bracket 4 swings or rotates around the rotating shaft 2, the pointer 101 also rotates. After detecting the linear displacement of the pointer 101, the actual rotation angle of the pointer 101 and the rotating shaft 2 is calculated. When the detector detects the actual rotation angle of the rotating shaft 2, it sends a signal to the drive unit 3 through an external controller. The drive unit 3 drives the rotating shaft 2 to compensate and rotate to a preset angle, thereby achieving the correction of the rotation angle.

[0034] In use, the frame 1 can be connected to an external linear motion assembly. The drive unit 3 drives the rotating shaft 2 to rotate, and the rotation of the rotating shaft 2 causes the mounting frame 4 to swing, thereby adjusting the angles of the cap-attaching mechanism 5 and the clamping mechanism 6. The detection mechanism 8 detects whether the position of the mounting frame 4 after swinging is in place, ensuring operational accuracy. After the angle of the clamping mechanism 6 is adjusted, it can adapt to the posture of the electrode cap on the electrode connecting rod. The frame 1 approaches an upright electrode cap on one electrode connecting rod or an inverted electrode cap on another electrode connecting rod. The clamping mechanism 6 clamps the upright or inverted electrode cap. Then, the frame 1 moves away from the electrode connecting rod, and the clamping mechanism 6, holding the electrode cap, moves with the frame 1. The electrode cap detaches from the electrode connecting rod and reaches the electrode cap collection area. The clamping mechanism 6 releases the electrode cap, allowing it to detach from the clamping mechanism 6. The drive unit 3 can cause the mounting frame 4 to swing so that the electrode cap can fall freely from the clamping mechanism 6. After removing the upright or inverted electrode cap, the frame 1 moves to the first sensor 7 to detect whether the electrode cap on the electrode connecting rod has been successfully removed. The capping mechanism 5 carries new upright and inverted electrode caps. After the electrode caps on the electrode connecting rods are successfully removed, the drive component 3 can drive the rotating shaft 2 to rotate, thereby adjusting the posture of the capping mechanism 5 so that the upright or inverted electrode caps of the capping mechanism 5 can be fitted onto the electrode connecting rods. The frame 1 approaches the electrode connecting rods where the upright or inverted electrode caps on the capping mechanism 5 have been removed. As the frame 1, capping mechanism 5, and electrode connecting rods continue to approach, new upright or inverted electrode caps are fitted onto the electrode connecting rods. The upright and inverted electrode caps on the two electrode connecting rods are clamped by the clamping mechanism 6. The capping mechanism 5 provides new upright and inverted electrode caps for the two electrode connecting rods. Continuous operation ensures stable welding operations. The drive component 3 drives the rotating shaft 2 to rotate to meet the angle requirements when changing electrode caps. The clamping mechanism 6 and capping mechanism 5 stably replace the upright and inverted electrode caps on the two electrode connecting rods. Compared to traditional robotic arms used for moving and changing angles when changing caps, this device has a lower overall cost. It also boasts a high degree of automation and efficient cap-changing operations.

[0035] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined by the claims of this patent, all of which should fall within the protection scope of the present invention.

Claims

1. A swing arm capping machine comprising a frame (1) characterised in that: The rack (1) is provided with a rotatable rotating shaft (2), the rack (1) is provided with a driving member (3) for driving the rotating shaft (2) to rotate, the rotating shaft (2) is provided with a mounting frame (4), the mounting frame (4) is provided with a cap mounting mechanism (5) for carrying upright electrode caps and inverted electrode caps, the mounting frame (4) is provided with a clamping mechanism (6) for clamping the upright electrode cap and the inverted electrode cap on the two opposite electrode connecting rods and releasing the upright electrode cap and the inverted electrode cap, the mounting frame (4) is provided with a first sensor (7) for detecting the electrode cap removal state on the electrode connecting rod, and further comprising a detection mechanism (8) for detecting the rotating position of the mounting frame (4).

2. The swing arm capper of claim 1, wherein: The cap mounting mechanism (5) comprises a containing box (51) connected to the mounting frame (4), opposite sides of the containing box (51) are respectively provided with a material channel (511) recessed towards the inside of the containing box (51), and the two material channels (511) are respectively used for carrying a plurality of upright electrode caps and a plurality of inverted electrode caps; the containing box (51) is provided with two push components (52); the containing box (51) is provided with two stoppers (512) for abutting against the electrode caps in the material channels (511) and preventing the electrode caps from falling off from the material channels (511); the push components (52) are used for pushing the electrode caps in the material channels (511) towards the stoppers (512); one side of the containing box (51) close to the stoppers (512) is provided with a discharging hole (513) capable of communicating the material channels (511) with the external environment; and the opposite sides of the containing box (51) are respectively provided with anti-falling components (53) capable of preventing the electrode caps abutting against the stoppers (512) from falling off from the discharging hole (513) before being mounted on the electrode connecting rods.

3. The swing arm capper of claim 1, wherein: The clamping mechanism (6) comprises a base (61) connected to the mounting frame (4), the base (61) is provided with a driving assembly (62), the base (61) is provided with a mounting cavity, the base (61) is rotationally connected with a first cap unloading claw group (63) and a second cap unloading claw group (64) located in the mounting cavity, the first cap unloading claw group (63) and the second cap unloading claw group (64) can clamp and release the upright electrode cap and the inverted electrode cap on the two electrode connecting rods by rotating themselves, and the driving assembly (62) is used for driving the first cap unloading claw group (63) and the second cap unloading claw group (64) to rotate.

4. The swing arm capper of claim 1, wherein: The detection mechanism (8) comprises a shaft coupling (81a) connected to the rotating shaft (2), the rack (1) is provided with an encoder (82a), the rotating shaft (2) is connected to the input end of the encoder (82a) through the shaft coupling (81a), and the encoder (82a) is electrically connected to an external controller. Or the detection mechanism (8) comprises a support frame (81b) fixed on the rack (1), the support frame (81b) is provided with a first accommodating groove, the support frame (81b) is slidably connected with a rotatable first signal disc (82b) through the first accommodating groove, the rack (1) is slidably connected with a locking frame (83b) capable of approaching and moving away from the support frame (81b) through a sliding piece, the locking frame (83b) is provided with a second accommodating groove capable of abutting against the first signal disc (82b), the axis of the first signal disc (82b) is collinear with the axis of the rotating shaft (2), the support frame (81b) and the locking frame (83b) are detachably connected through a plurality of fasteners, the mounting frame (4) is provided with a first protrusion (41), the first signal disc (82b) is provided with a second sensor (84b) capable of detecting the position of the first protrusion (41), and the second sensor (84b) is electrically connected to the external controller; Or the detection mechanism (8) comprises a second signal disc (81c) arranged on the mounting frame (4), the axis of the second signal disc (81c) is collinear with the axis of the rotating shaft (2), the rack (1) is provided with a second protrusion (11), and the second signal disc (81c) is annularly provided with a plurality of third sensors (82c), the plurality of third sensors (82c) are electrically connected to the external controller, and the third sensors (82c) can reach a position close to the second protrusion (11) when the mounting frame (4) rotates.

5. The swing arm capper of claim 4, wherein: The first cap unloading claw group (63) comprises a plurality of first claw bodies (631) rotatably connected to the base (61), the plurality of first claw bodies (631) are annularly arranged on the base (61), the first claw body (631) is provided with a first clamping tooth portion (6311) for contacting a normal electrode cap, and the first claw body (631) is provided with a first shifting rod (6312); the second cap unloading claw group (64) comprises a plurality of second claw bodies (641) rotatably connected to the base (61), the plurality of second claw bodies (641) are annularly arranged on the base (61), the second claw body (641) is provided with a second clamping tooth portion (6411) for contacting an inverted electrode cap, and the second claw body (641) is provided with a second shifting rod (6412); the driving assembly (62) comprises a power piece (621) capable of outputting rotary force at an output end, the base (61) is rotatably connected with a first driving disc (622), and the power piece (621) is drivingly connected to the first driving disc (622); the first driving disc (622) is provided with a first insertion slot (6221) for accommodating the first shifting rod (6312); the base (61) is rotatably connected with a second driving disc (623), and the power piece (621) or the first driving disc (622) is drivingly connected to the second driving disc (623); and the second driving disc (623) is provided with a second insertion slot (6231) for accommodating the second shifting rod (6412).

6. The swing arm capper of claim 2, wherein: The pushing assembly (52) comprises a first elastic member (521) arranged on the containing box (51), the containing box (51) is elastically connected with a push rod (522) through the first elastic member (521), the push rod (522) can push the electrode cap in the material channel (511) towards the discharging hole (513).

7. The swing arm capper of claim 2, wherein: The anti-disengagement assembly (53) comprises a top pressing block (531) and a second elastic member (532) arranged on the containing box (51), the top pressing block (531) comprises a body (5311) rotatably connected to the containing box (51), the body (5311) is fixedly provided with a top plate (5312), one side of the top plate (5312) abuts against the containing box (51) and the other side is elastically connected to the containing box (51) through the second elastic member (532), the side of the top plate (5312) abutting against the containing box (51) is located outside the electrode cap reaching the discharging hole (513) and abutting against the stopper (512), and the end of the side of the top plate (5312) abutting against the containing box (51) is located between the inner side and the outer side of the electrode cap reaching the discharging hole (513) and abutting against the stopper (512).

8. The swing arm capper of claim 2, wherein: The stopper (512) is provided with a contact surface (5121) for contacting the outer side of the electrode cap, the contact surface (5121) is arc-shaped, the stopper (512) is rotatably connected to the containing box (51), and the stopper (512) is elastically connected to the containing box (51) through a third elastic member.

9. The swing arm capper of claim 2, wherein: The mounting rack (4) is provided with a buffer rack (9) and a fourth elastic member (42), the buffer rack (9) is elastically connected to the mounting rack (4) through the fourth elastic member (42), the buffer rack (9) is provided with a third insertion slot (91) recessed from the outer surface to the inner part, the containing box (51) is inserted and mounted on the buffer rack (9) through the third insertion slot (91), the buffer rack (9) is provided with a fifth elastic member (92) capable of abutting against the containing box (51) in the third insertion slot (91) and preventing the containing box (51) from disengaging from the third insertion slot (91), the fourth elastic member (42) and the fifth elastic member (92) are located on opposite sides of the containing box (51), the directions of the elastic forces of the fourth elastic member (42) and the fifth elastic member (92) are opposite when the fourth elastic member (42) and the fifth elastic member (92) respectively generate elastic forces on the buffer rack (9) and the containing box (51), and the directions of the elastic forces generated by the fourth elastic member (42) and the fifth elastic member (92) on the buffer rack (9) and the containing box (51) are parallel to the extension direction of the axis of the electrode cap in the material channel (511).

10. The swing arm capper of claim 9, wherein: The containing box (51) is provided with a detection hole communicating the material channel (511) with the external environment, the buffer rack (9) is provided with a fourth sensor (93) penetrating through the detection hole and detecting the presence state of the electrode cap in the material channel (511), the fourth sensor (93) is electrically connected to an external controller, and one side of the material channel (511) close to the discharging hole (513) is provided with an elastic pad (5111) capable of abutting against the end of the electrode cap.

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