A switching device for welding main line trolley and its use method

Abstract

The present invention discloses a switching device for a welding main line trolley and a method for using the device. The device comprises a longitudinally elongated device body, a quick-connect structure for connecting to a robot, a handle operating assembly for operating a sliding mechanism handle, and a handle operating assembly for operating a flip mechanism handle. The switching device for a welding main line trolley disclosed in the present invention and a method for using the device utilize a robot and a set of switching devices to automatically operate the sliding mechanism handle and the flip mechanism handle, eliminating the need for manual operation of the sliding mechanism handle and the flip mechanism handle, thereby reducing labor intensity, significantly improving work efficiency, and enhancing operational safety.

Description

Technical Field

[0001] The present invention relates to the technical field of body-in-white production lines, and in particular to a switching device for a welding main line trolley and a method of using the same. Background Art

[0002] The main welding line trolley is a multi-model random mixed flow production line for white body, which generally has 30 to 40 workstations, and the transportation between the workstations is carried by the trolley. Figure 1 The partial structure of the welding main line trolley is shown. The welding main line trolley includes a base 101, multiple sets of sliding mechanisms 102, and multiple sets of tilting mechanisms 103. The sliding mechanism 102 is slidably mounted on the base 101 and can be adjusted along the length direction of the base 101 (referred to as the X direction). The base 101 is provided with a number of positioning holes at intervals. A sliding mechanism handle 1021 is hingedly connected to the bottom plate of the sliding mechanism 102. The bottom of the sliding mechanism handle 1021 is connected to a latch 1022. The latch 1022 is inserted and removed by manually lifting and pressing the sliding mechanism handle 1021. When moving the sliding mechanism 102, it is necessary to manually lift the sliding mechanism handle 1021 to allow the latch 1022 to clear the positioning hole of the base 101. After the sliding mechanism 102 is moved into position, the sliding mechanism handle 1021 is lowered, allowing the latch 1022 to insert into the positioning hole of the base 101, thereby limiting the movement of the sliding mechanism 102.

[0003] Multiple pairs of vertical brackets 1023 are provided on opposite sides of the sliding mechanism 102. Each vertical bracket 1023 is hingedly connected to a set of flipping mechanisms 103. Each flipping mechanism 103 is used to position a different type of vehicle. If two flipping mechanisms 103 are spaced apart along the X-axis on the sliding mechanism 102, it can be used to position two types of vehicles. If three flipping mechanisms 103 are spaced apart along the X-axis on the sliding mechanism 102, it can be used to position three types of vehicles, and so on.

[0004] If the position of the flipping mechanism 103 along the X direction needs to be adjusted, it can be achieved by adjusting the sliding mechanism 102 .

[0005] The flip mechanism 103 has a positioning structure for positioning the vehicle model, and the positioning structure includes a positioning pin 1031, etc. The flip mechanism 103 is also provided with a flip mechanism handle 1032, which is used for the user to flip the flip mechanism 103 so that the flip mechanism 103 can be flipped and switched between the working position and the non-working position.

[0006] When the flip mechanism 103 is in the working position, the positioning pin 1031 is at the top, and is used to cooperate with the positioning hole on the chassis of the white body for positioning. Figure 1 ① the first set of turning mechanism 103.

[0007] When the flip mechanism 103 is in the non-working position, the positioning pin 1031 is tilted at a certain angle, and the positioning pin 1031 is tilted toward the inside or outside, and the positioning pin 1031 will not interfere with the chassis of the white body. Figure 1 The second set of turning mechanism 103.

[0008] In the prior art, the position adjustment and locking of the sliding mechanism 102 are achieved by manually lifting and pressing down the sliding mechanism handle 1021, and the flipping mechanism 103 is flipped by manually holding the flipping mechanism handle 1032 to achieve the flipping and switching of the flipping mechanism 103 between the working position and the non-working position. During operation, manual labor is required to bend over frequently, which is labor-intensive. Manual switching occasionally fails to switch into place, which is inefficient and unsafe. Summary of the Invention

[0009] The purpose of the present invention is to overcome the shortcomings of the existing technology and provide a switching device for a welding main line trolley and a method of using the same. By using a set of switching devices by a robot, the sliding mechanism handle and the flip mechanism handle can be manipulated, which reduces labor intensity, greatly improves work efficiency, and improves operation safety.

[0010] The technical solution of the present invention provides a switching device for a welding main line trolley, which is used to operate the sliding mechanism handle and the flip mechanism handle;

[0011] The switching device includes a longitudinal device body, a quick-connect structure for connecting to a robot, a handle operating assembly for operating the sliding mechanism handle, and a handle operating assembly for operating the flip mechanism handle;

[0012] The device body includes a first end and a second end that are oppositely disposed, and the quick-connect structure is disposed on the back side of the device body;

[0013] The handle operating assembly is arranged below the first end portion and is capable of lifting, releasing or pressing down the sliding mechanism handle;

[0014] The handle operating assembly is provided on the front side of the second end portion, and comprises a connecting arm connected to the device body, a toggle head pivotally connected to the connecting arm and used to toggle the handle of the flip mechanism, and two sets of elastic buffer elements connected between the connecting arm and the toggle head;

[0015] The pivot axis of the toggle head is parallel to the length direction of the device body, and the two groups of elastic buffer elements are arranged on opposite sides of the pivot axis.

[0016] In one of the optional technical solutions, a rotating wheel is provided at the end of the toggle head.

[0017] In one of the optional technical solutions, the device body is provided with a torque sensor for monitoring the torque of the toggle head.

[0018] In one of the optional technical solutions, the handle operating assembly includes a floating mechanism connected to the device body, a brake module connected to one side of the floating mechanism and used to lock the floating mechanism, and a clamp connected below the floating mechanism;

[0019] The clamp comprises a pair of oppositely arranged clamping jaws and a driving module for driving the pair of clamping jaws to open and clamp;

[0020] When the two clamping jaws are in a clamped state, the two clamping jaws can lift the sliding mechanism handle.

[0021] In one of the optional technical solutions, the end of the clamping jaw has a clamping jaw groove. When the two clamping jaws are in a clamping state, the two clamping jaw grooves are connected to form a clamping jaw through hole, and the positioning pin under the sliding mechanism handle passes through the clamping jaw through hole.

[0022] In one of the optional technical solutions, the floating mechanism includes a longitudinal guide rail provided on the bottom surface of the first end portion, a connecting seat connected above the driving module and having a transverse guide rail, and a floating seat slidably connected to the longitudinal guide rail and the transverse guide rail;

[0023] A longitudinal limiting structure is provided between the first end portion and the floating seat, and a transverse limiting structure is provided between the connecting seat and the floating seat.

[0024] In one of the optional technical solutions, the longitudinal limiting structure includes a longitudinal limiting groove provided on the side of the first end portion and a longitudinal limiting block connected to the side of the floating seat, and the longitudinal limiting block is loosely fitted in the longitudinal limiting groove.

[0025] In one of the optional technical solutions, a longitudinal guide structure is provided on the side surface of the first end portion, and the upper end of the longitudinal limit block is slidably connected to the longitudinal guide structure.

[0026] In one of the optional technical solutions, the lateral limiting structure includes a lateral limiting groove provided at the front end and / or rear end of the connecting seat and a lateral limiting block provided at the front end and / or rear end of the floating seat, and the lateral limiting block is loosely fitted in the lateral limiting groove.

[0027] The technical solution of the present invention provides a method for using a switching device for a welding main line trolley, comprising the following steps:

[0028] S1: Connect the switching device to the robot;

[0029] S2: The robot moves along a fixed track and drives the switching device to operate, and uses the toggle head of the handle operating assembly to flip all the flipping mechanisms on the welding main line trolley to the non-working position;

[0030] S3: The robot moves along the fixed track and drives the switching device to actuate. The handle of the sliding mechanism is lifted by the handle operating assembly, and the position of the sliding mechanism is adjusted. After the adjustment is in place, the handle of the sliding mechanism is released or pressed down, and the sliding mechanism is positioned on the base of the welding main line trolley;

[0031] S4: The robot moves along a fixed track and drives the switching device to reach the designated flipping mechanism in sequence, and uses the toggle head of the handle operating assembly to flip the flipping mechanism to the working position in sequence;

[0032] S5: Complete the preparation work for welding the main line trolley.

[0033] The above technical solution has the following beneficial effects:

[0034] The switching device for a welding main line trolley provided by the present invention is equipped with a quick-connect structure, a handle operating assembly, and a handle operating assembly. The quick-connect structure is used to connect to the robot; the handle operating assembly is used to lift, release, or press down the sliding mechanism handle to adjust and lock the sliding mechanism; the handle operating assembly uses a toggle head to toggle the flip mechanism handle, driving the flip mechanism to flip and switch between the working and non-working positions.

[0035] In summary, the switching device for the welding main line trolley and the method of use thereof provided by the present invention utilize a set of switching devices by a robot to manipulate the sliding mechanism handle and the flipping mechanism handle, thereby reducing labor intensity, greatly improving work efficiency, and enhancing operation safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The disclosure of the present invention will become more easily understood with reference to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. In the drawings:

[0037] Figure 1 It is a schematic diagram of the partial structure of the welding main line trolley in the prior art;

[0038] Figure 2 A three-dimensional diagram of a switching device provided by an embodiment of the present invention at a certain viewing angle;

[0039] Figure 3 for Figure 2 A perspective view of the switching device shown in another perspective;

[0040] Figure 4 A three-dimensional diagram of the toggle head;

[0041] Figure 5 A perspective view of the device body and the connecting arm connected together;

[0042] Figure 6 A perspective view of a handle operating assembly connected to a first end portion of the device body;

[0043] Figure 7 A perspective view of the handle control assembly at one viewing angle;

[0044] Figure 8 A perspective view of the handle control assembly from another perspective;

[0045] Figure 9 is a three-dimensional diagram of the drive module;

[0046] Figure 10 is a three-dimensional diagram of the gripper;

[0047] Figure 11 A perspective view of a connecting seat with a transverse guide rail;

[0048] Figure 12 A three-dimensional diagram of the connecting seat from a rear perspective;

[0049] Figure 13 The exploded view of the longitudinal guide rail, floating seat and transverse guide rail;

[0050] Figure 14 A three-dimensional diagram of the assembled connecting seat, floating seat, longitudinal guide rail and brake module;

[0051] Figure 15 A schematic diagram of a robot connected to a switching device operating around a trolley;

[0052] Figure 16 A schematic diagram of utilizing a toggle head to flip the flip mechanism;

[0053] Figure 17 This is a schematic diagram of using the handle operating assembly to lift the sliding mechanism handle. DETAILED DESCRIPTION

[0054] The following further describes specific embodiments of the present invention with reference to the accompanying drawings. Like components are denoted by like reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, and the terms "inward" and "outward" refer to directions toward or away from the geometric center of a particular component, respectively.

[0055] like Figure 1-5 and Figure 15-17As shown, an embodiment of the present invention provides a switching device for a welding main line trolley, which is used to operate a sliding mechanism handle 1021 and a flip mechanism handle 1032.

[0056] The switching device includes a longitudinal device body 1 , a quick-connect structure 2 for connecting with the robot 7 , a handle operating assembly 3 for operating the sliding mechanism handle 1021 , and a handle operating assembly 4 for operating the flip mechanism handle 1032 .

[0057] The device body 1 includes a first end 11 and a second end 12 that are oppositely disposed, and the quick-connect structure 2 is disposed on the back side of the device body 1 .

[0058] The handle operating assembly 3 is disposed below the first end portion 11 and is capable of lifting and releasing or pressing down the sliding mechanism handle 1021 .

[0059] The handle operating assembly 4 is arranged on the positive side of the second end 12, and the handle operating assembly 4 includes a connecting arm 41 connected to the device body 1, a toggle head 42 pivotally connected to the connecting arm 41 and used to toggle the flip mechanism handle 1032, and two groups of elastic buffer elements 43 connected between the connecting arm 41 and the toggle head 42.

[0060] The pivot axis 44 of the toggle head 42 is parallel to the length direction of the device body 1 , and two groups of elastic buffer elements 43 are arranged on opposite sides of the pivot axis 44 .

[0061] The switching device provided by the present invention is used on a main welding line trolley. As described in the background, the main welding line trolley is used to support the body-in-white (BIW). The base 101 of the main welding line trolley is equipped with a sliding mechanism 102, which is equipped with a flipping mechanism 103. The sliding mechanism 102 is equipped with a sliding mechanism handle 1021 and a latch 1022, while the flipping mechanism 103 is equipped with a positioning pin 1031 and a flipping mechanism handle 1032.

[0062] The switching device provided by the present invention can be used to automatically lift the sliding mechanism handle 1021 of the sliding mechanism 102 so that the pin 1022 leaves the positioning hole of the base 101, thereby adjusting the position of the sliding mechanism 102 along the X direction; it can also be used to release and press down the sliding mechanism handle 1021, and the pin 1022 is inserted into the positioning hole to lock the sliding mechanism 102.

[0063] The switching device provided by the present invention can also be used to flip the turnover mechanism 103 so that the positioning pin 1031 of the turnover mechanism 103 can be switched between the working position and the non-working position.

[0064] Specifically, the switching device is equipped with a device body 1, a quick-connect structure 2, a handle operating component 3 and a handle operating component 4, an electrical control box 5, etc.

[0065] The device body 1 is longitudinally shaped and can be constructed using a straight longitudinal beam, pipe column, plate, or other structure. One end of the device body 1 is referred to as a first end 11, and the other end is referred to as a second end 12. A mounting plate 13 is provided on the top surface of the second end 12 for mounting the electrical control box 5.

[0066] A quick-connect structure 2 is provided on the back of the device body 1 and can be formed using a flange or other structure to quickly connect to the robotic arm 71 of the robot 7. The switching device is driven by the robot 7 to move and is driven by the robotic arm 71 to adjust its position, angle, and direction to cooperate with the sliding mechanism 102 and the flipping mechanism 103.

[0067] The handle operating assembly 3 is provided below the first end portion 11 and can be a clamping mechanism, a tightening mechanism, etc. The handle operating assembly 3 is used to lift, release or press down the sliding mechanism handle 1021 to complete the adjustment and locking of the sliding mechanism 102 .

[0068] The handle operating assembly 4 is arranged on the front side of the second end 12. Preferably, the handle operating assembly 4 is aligned with the quick-connect structure 2. The swing angle of the robotic arm 71 is the swing angle of the handle operating assembly 4, which is also beneficial for the robotic arm 71 to directly apply a push or pull force to the handle operating assembly 4, thereby driving the flipping mechanism 103 to flip and switch between the working position and the non-working position.

[0069] The handle operating assembly 4 includes a connecting arm 41, a toggle head 42 and two groups of elastic buffer elements 43. The connecting arm 41 is connected to the front of the second end 12 and is arranged perpendicular to the device body 1. The toggle head 42 is connected to the end of the connecting arm 41 through a pivot shaft 44. The pivot shaft 44 is arranged parallel to the device body 1, that is, the pivot shaft 44 is arranged along the longitudinal direction. Thus, the toggle head 42 can swing relative to the connecting arm 41. It can swing toward the top side of the device body 1 or the connecting arm 41, and it can also swing toward the bottom side of the device body 1 or the connecting arm 41. The toggle head 42 is used to toggle the flip mechanism handle 1032. Since the toggle head 42 can swing within a certain range, it can avoid the toggle head 42 from hard collision with the positioning pin 1031 or the flip mechanism handle 1032, thereby playing a buffering role.

[0070] Specifically, ear plates 421 are respectively provided on the left and right sides of the toggle head 42. The two ear plates 421 are clamped on the left and right sides of the connecting arm 41. The pivot shaft 44 passes through the ear plates 421 and the connecting arm 41 and connects the ear plates 421 and the connecting arm 41 together.

[0071] A preset gap is left between the end of the connecting arm 41 and the end of the toggle head 42 to allow the toggle head 42 to swing.

[0072] Considering that there are certain differences among the welding main line trolleys, the trajectory of the same robot 7 cannot adapt to all welding main line trolleys, which may cause overdrive and force collision. Therefore, two sets of elastic buffer elements 43 are used to provide buffering.

[0073] Two sets of elastic buffer elements 43 are located above and below the pivot shaft 44 to provide a buffering effect. Specifically, the elastic buffer elements 43 can be springs, one end of which is connected to the connecting arm 41 and the other end to the toggle head 42. When the toggle head 42 toggles the positioning pin 1031 or the flip mechanism handle 1032, if overdrive occurs, the deformation of the elastic buffer elements 43 offsets the overdrive.

[0074] Preferably, the toggle head 42 is T-shaped, and has mounting bosses 420 on the upper and lower sides of one end facing the connecting arm 41. The mounting boss 420 has a mounting hole for mounting one end of the elastic buffer element 43, and increases the distance between the elastic buffer element 43 and the pivot shaft 44 to avoid the swing of the toggle head 42 being affected by the close distance.

[0075] Under the action of the mechanical arm 71, the toggle head 42 can provide pushing and pulling effects, thereby toggling the flip mechanism handle 1032 to drive the flip mechanism 103 to flip, thereby realizing the conversion between the working position and the non-working position.

[0076] When preparing the welding main line trolley according to the vehicle model, the robot 7 is used to drive the switching device to move along the preset trajectory, and all the flipping mechanisms 103 are flipped to the non-working position. When flipping the flipping mechanism 103, the following method is used: Figure 15-16 In the manner shown, the mechanical arm 71 drives the switching device to swing to a certain angle, and the device body 1 is tilted downward along the longitudinal direction, and the connecting arm 41 and the toggle head 42 are tilted downward, so that the flip mechanism handle 1032 can be toggled downward or upward.

[0077] Then the robot arm 71 drives the switching device to swing to a certain angle, and the robot 7 moves along the preset trajectory, such as Figure 17 As shown, the handle operating assembly 3 holds the column sliding mechanism handle 1021 and pulls it up, so that the pin 1022 leaves the positioning hole on the base 101, and then the robot 7 moves along the preset trajectory and uses the handle operating assembly 3 to support the sliding mechanism 102 to move to the specified position, and then the handle operating assembly 3 releases or presses down the sliding mechanism handle 1021, and the pin 1022 is inserted into the positioning hole on the base 101, locking the sliding mechanism 102 in the specified position.

[0078] Then, the robot 7 moves along the preset track and uses the handle operating assembly 4 to flip the required flipping mechanism 103 to the working position, and the flipping mechanism 103 that does not need to work remains in the non-working position, completing the preparation work of the welding main line trolley.

[0079] In summary, the switching device for the welding main line trolley provided by the present invention uses a set of switching devices with the robot 7 to operate the sliding mechanism handle 1021 and the flipping mechanism handle 1032, thereby realizing automated operation, reducing labor intensity, greatly improving work efficiency, and improving operation safety.

[0080] In one embodiment, Figure 2-4 As shown, a rotating wheel 422 is provided at the end of the toggle head 42, and the rotating wheel 422 is used to cooperate with the flip mechanism handle 1032. When the flip mechanism handle 1032 is toggled downward or upward, the rotating wheel 422 will rotate accordingly, which can avoid hard collision with the flip mechanism handle 1032 and play a protective role.

[0081] In one embodiment, Figure 2-3 As shown, the device body 1 is provided with a torque sensor 6 for monitoring the torque of the dial head 42 .

[0082] Considering the differences between different welding line trolleys, the trajectory of the same robot 7 cannot adapt to all welding line trolleys, and there may be insufficient drive and inability to switch into position. Therefore, a torque sensor 6 is configured to monitor the torque of the connecting arm 41. The torque sensor 6 monitors the torque applied to the toggle head 42 after the robot 7's motion trajectory ends, and sets a torque threshold in advance. If the current torque reaches the torque threshold, the switch is considered in place; if the current torque does not reach the torque threshold, a signal is issued, and the robot 7's mechanical arm 71 continues to drive the flip mechanism 103 to flip according to the preset feed amount. The feed amount can be selected between 3mm and 7mm.

[0083] In one embodiment, Figure 6-9 and Figure 17 As shown, the handle operating assembly 3 includes a floating mechanism 31 connected to the device body 1 , a brake module 32 connected to one side of the floating mechanism 31 and used to lock the floating mechanism 31 , and a clamp 33 connected below the floating mechanism 31 .

[0084] The clamp 33 includes a pair of oppositely disposed clamping jaws 331 and a driving module 332 for driving the pair of clamping jaws 331 to open and clamp.

[0085] When the two clamping jaws 331 are in a clamping state, the two clamping jaws 331 can lift the sliding mechanism handle 1021 .

[0086] In this embodiment, the handle control assembly 3 includes a floating mechanism 31, a brake module 32, and a clamp 33. The floating mechanism 31 is connected below the first end 11 and can float slightly in the longitudinal and lateral directions to accommodate the required movement of the clamp 33 in holding the sliding mechanism handle 1021 and / or latch 1022. This movement can be selected within ±5 mm.

[0087] The brake module 32 is fixedly connected to one side of the floating mechanism 31 . When the clamp 33 clamps the sliding mechanism handle 1021 and / or the latch 1022 , the brake module 32 presses or clamps the floating mechanism 31 to prevent it from floating.

[0088] The brake module 32 can employ either a telescopic or clamping brake structure. The brake module 32 is fixedly connected to the floating mechanism 31 along a longitudinally spaced arrangement. Under normal conditions, the brake module 32 releases the brake, allowing the floating mechanism 31 to float. When the brake module 32 opens the brake, the floating mechanism 31, to which it is fixed, cannot float, thereby securing the floating mechanism 31 in place. The brake module 32 can be fixed to surrounding connecting structures, such as the first end portion 11 or a guide rail disposed on the first end portion 11.

[0089] The clamp 33 is connected to the bottom of the floating mechanism 31 and includes a pair of L-shaped clamping jaws 331 and a set of driving modules 332. The driving module 332 can be a clamping cylinder, which has telescopic parts on opposite sides, and each clamping jaw 331 is connected to a telescopic part. The driving module 332 can drive the pair of clamping jaws 331 to expand and clamp. When the pair of clamping jaws 331 are in the clamping state, they can clamp the sliding mechanism handle 1021 and / or the pin 1022 to lift the sliding mechanism handle 1021, and can also press down the sliding mechanism handle 1021 to insert the pin 1022 into the positioning hole. When the pair of clamping jaws 331 are in the expanded state, the sliding mechanism handle 1021 will be released.

[0090] In one embodiment, Figure 7 and Figure 10 As shown, the end of the clamping jaw 331 has a clamping jaw groove 3313. When the two clamping jaws 331 are in a clamping state, the two clamping jaw grooves 3313 are connected to form a clamping jaw through hole 3314, and the pin 1022 under the sliding mechanism handle 1021 passes through the clamping jaw through hole 3314.

[0091] In this embodiment, the clamping jaws 331 are L-shaped and comprise a vertical plate 3311 and a horizontal plate 3312 connected to the lower end of the vertical plate 3311. The vertical plate 3311 is connected to the telescopic portion of the drive module 332, while the horizontal plate 3312 extends inward. The ends of the horizontal plate 3312 have semicircular clamping jaw recesses 3313. When the two clamping jaws 331 are in the clamped state, the two clamping jaw recesses 3313 mate to form a clamping jaw through-hole 3314, which can clamp the latch 1022. The sliding mechanism handle 1021 passes through the space between the two vertical plates 3311.

[0092] In one embodiment, Figure 6-8 、 Figure 11 and Figure 13-14 As shown, the floating mechanism 31 includes a longitudinal guide rail 311 arranged on the bottom surface of the first end 11, a connecting seat 312 connected above the driving module 332 and having a transverse guide rail 313, and a floating seat 314 slidingly connected to the longitudinal guide rail 311 and the transverse guide rail 313.

[0093] A longitudinal limiting structure is provided between the first end portion 11 and the floating seat 314 , and a transverse limiting structure is provided between the connecting seat 312 and the floating seat 314 .

[0094] In this embodiment, the floating mechanism 31 includes a longitudinal guide rail 311 , a connecting seat 312 , a transverse guide rail 313 and a floating seat 314 .

[0095] The longitudinal guide rail 311 is fixed to the bottom surface of the first end portion 11. The connecting base 312 is fixedly connected above the driving module 332. The transverse guide rail 313 is disposed within the connecting base 312, perpendicular to the longitudinal guide rail 311. The floating base 314 has a longitudinal groove 3141 on its top surface for assembly with the longitudinal guide rail 311. The floating base 314 has a transverse groove 3142 on its bottom surface for assembly with the transverse guide rail 313. The connecting base 312 can drive the driving module 332 and the clamping jaw 331 to float longitudinally and transversely.

[0096] The brake module 32 is assembled with the longitudinal guide rail 311 and fixedly connected to the floating seat 314. When the brake module 32 is released, the brake module 32 and the longitudinal guide rail 311 can slide relative to each other, allowing the floating seat 314 to float in the longitudinal direction. When the brake module 32 is engaged, the brake module 32 and the longitudinal guide rail 311 are locked, preventing the floating seat 314 from floating in the longitudinal direction.

[0097] In order to limit the floating amount along the longitudinal direction, a longitudinal limiting structure is provided between the first end portion 11 and the floating seat 314. The longitudinal limiting structure may adopt a combination of a limiting groove and a limiting block, or a combination of a limiting hole and a limiting pin.

[0098] In order to limit the floating amount in the lateral direction, a lateral limiting structure is provided between the connecting seat 312 and the floating seat 314. The lateral limiting structure may adopt a combination of a limiting groove and a limiting block, or a combination of a limiting hole and a limiting pin.

[0099] In one embodiment, Figure 5-8 As shown, the longitudinal limiting structure includes a longitudinal limiting groove 14 provided on the side of the first end 11 and a longitudinal limiting block 315 connected to the side of the floating seat 314 , and the longitudinal limiting block 315 is loosely fitted in the longitudinal limiting groove 14 .

[0100] In this embodiment, the longitudinal limiting structure utilizes a combination of a longitudinal limiting groove 14 and a longitudinal limiting block 315. The longitudinal limiting groove 14 is provided on the side of the first end portion 11, and the longitudinal limiting block 315 is provided on the side of the floating seat 314. After assembly, the longitudinal limiting block 315 fits loosely within the longitudinal limiting groove 14, leaving a certain amount of clearance in the longitudinal direction to limit the amount of longitudinal floating.

[0101] In one embodiment, Figure 6-8 As shown, a longitudinal guide structure 15 is provided on the side surface of the first end portion 11 , and the upper end of the longitudinal limit block 315 is slidably connected to the longitudinal guide structure 15 .

[0102] In this embodiment, in order to improve the stability of the longitudinal limit block 315, a longitudinal guide structure 15, such as a guide rod, is provided on the side of the first end 11, and the upper end of the longitudinal limit block 315 is slidingly connected to the longitudinal guide structure 15 to limit the upper end of the longitudinal limit block 315 to move within a certain range.

[0103] In one embodiment, Figure 6-8 and Figure 11-12 As shown, the lateral limiting structure includes a lateral limiting groove 3121 provided at the front end and / or rear end of the connecting seat 312 and a lateral limiting block 316 provided at the front end and / or rear end of the floating seat 314, and the lateral limiting block 316 is loosely fitted in the lateral limiting groove 3121.

[0104] In this embodiment, the lateral limiting structure utilizes a combination of a lateral limiting groove 3121 and a lateral limiting block 316. A lateral limiting groove 3121 is provided at the front or rear end of the connecting seat 312. Preferably, a lateral limiting groove 3121 is provided at both the front and rear ends of the connecting seat 312. A downwardly extending lateral limiting block 316 is provided at the front or rear end of the floating seat 314. Preferably, a lateral limiting block 316 is provided at both the front and rear ends of the floating seat 314. After assembly, the lateral limiting block 316 fits snugly within the lateral limiting groove 3121, leaving a certain amount of clearance in the lateral direction to limit the amount of lateral floating.

[0105] In one embodiment, a support plate 317 is connected to the rear end transverse limit block 316 for mounting the brake module 32 .

[0106] Combine Figure 1-17 As shown, an embodiment of the present invention provides a method for using a switching device for a welding main line trolley, comprising the following steps:

[0107] S1: Connect the switching device to the robot 7.

[0108] S2: The robot 7 moves along the fixed track and drives the switching device to operate, and uses the toggle head 42 of the handle operating assembly 4 to flip all the flipping mechanisms 103 on the welding main line trolley to the non-working position.

[0109] S3: The robot 7 moves along the fixed track and drives the switching device to operate. The handle operating component 3 is used to lift the sliding mechanism handle 1021 and adjust the position of the sliding mechanism 102. After adjustment, the sliding mechanism handle 1021 is released or pressed down, and the sliding mechanism 102 is positioned on the base of the welding main line trolley.

[0110] S4: The robot 7 moves along the fixed track and drives the switching device to reach the designated flipping mechanism 103 in sequence, and uses the toggle head 42 of the handle operating assembly 4 to flip the flipping mechanism 103 to the working position in sequence.

[0111] S5: Complete the preparation work for welding the main line trolley.

[0112] Specifically, when preparing the welding main line trolley according to the vehicle model, the robot 7 is used to drive the switching device to move along the preset trajectory, and all the flipping mechanisms 103 are flipped to the non-working position. When flipping the flipping mechanism 103, the following method is used: Figure 15-16 In the manner shown, the mechanical arm 71 drives the switching device to swing to a certain angle, and the device body 1 is tilted downward along the longitudinal direction, and the connecting arm 41 and the toggle head 42 are tilted downward, so that the flip mechanism handle 1032 can be toggled downward or upward.

[0113] Then the robot arm 71 drives the switching device to swing to a certain angle, and the robot 7 moves along the preset trajectory, such as Figure 17 As shown, the handle operating assembly 3 holds the column sliding mechanism handle 1021 and pulls it up, so that the pin 1022 leaves the positioning hole on the base 101, and then the robot 7 moves along the preset trajectory and uses the handle operating assembly 3 to support the sliding mechanism 102 to move to the specified position, and then the handle operating assembly 3 releases or presses down the sliding mechanism handle 1021, and the pin 1022 is inserted into the positioning hole on the base 101, locking the sliding mechanism 102 in the specified position.

[0114] Then, the robot 7 moves along the preset trajectory and uses the toggle head 42 of the handle operating assembly 4 to flip the required flipping mechanism 103 to the working position, and the flipping mechanism 103 that does not need to work remains in the non-working position, completing the preparation work of the welding main line trolley.

[0115] In summary, the method of using the switching device provided by the present invention utilizes a set of switching devices with the robot 7 to manipulate the sliding mechanism handle 1021 and the flipping mechanism handle 1032, thereby realizing automated operation, reducing labor intensity, greatly improving work efficiency, and improving operation safety.

[0116] As needed, the above technical solutions can be combined to achieve the best technical effect.

[0117] The above are only the principles and preferred embodiments of the present invention. It should be noted that, for those skilled in the art, several other variations can be made based on the principles of the present invention, which should also be considered as the scope of protection of the present invention.

Claims

1. A switching device for the welding main line trolley, used to operate the sliding mechanism handle and the flip mechanism handle; It is characterized by: The switching device includes a longitudinal device body, a quick-connect structure for connecting to a robot, a handle operating assembly for operating the sliding mechanism handle, and a handle operating assembly for operating the flip mechanism handle; The device body includes a first end and a second end that are oppositely disposed, and the quick-connect structure is disposed on the back side of the device body; The handle operating assembly is arranged below the first end portion and is capable of lifting, releasing or pressing down the sliding mechanism handle; The handle operating assembly is provided on the front side of the second end portion, and comprises a connecting arm connected to the device body, a toggle head pivotally connected to the connecting arm and used to toggle the handle of the flip mechanism, and two sets of elastic buffer elements connected between the connecting arm and the toggle head; The pivot axis of the toggle head is parallel to the length direction of the device body, and the two groups of elastic buffer elements are arranged on opposite sides of the pivot axis.

2. The switching device for the welding main line trolley according to claim 1, characterized in that: The end of the toggle head is provided with a rotating wheel.

3. The switching device for the welding main line trolley according to claim 1, characterized in that: The device body is provided with a torque sensor for monitoring the torque of the toggle head.

4. The switching device for the welding main line trolley according to claim 1, characterized in that: The handle operating assembly includes a floating mechanism connected to the device body, a brake module connected to one side of the floating mechanism and used to lock the floating mechanism, and a clamp connected below the floating mechanism; The clamp comprises a pair of oppositely arranged clamping jaws and a driving module for driving the pair of clamping jaws to open and clamp; When the two clamping jaws are in a clamped state, the two clamping jaws can lift the sliding mechanism handle.

5. The switching device for the welding main line trolley according to claim 4, characterized in that: The ends of the clamping jaws are provided with clamping jaw grooves. When the two clamping jaws are in a clamping state, the two clamping jaw grooves are butted together to form a clamping jaw through hole. The positioning pin below the handle of the sliding mechanism passes through the clamping jaw through hole.

6. The switching device for the welding main line trolley according to claim 4, characterized in that: The floating mechanism includes a longitudinal guide rail provided on the bottom surface of the first end portion, a connecting seat connected above the driving module and having a transverse guide rail, and a floating seat slidably connected to the longitudinal guide rail and the transverse guide rail; A longitudinal limiting structure is provided between the first end portion and the floating seat, and a transverse limiting structure is provided between the connecting seat and the floating seat.

7. The switching device for the welding main line trolley according to claim 6, characterized in that: The longitudinal limiting structure includes a longitudinal limiting groove provided on the side of the first end portion and a longitudinal limiting block connected to the side of the floating seat, and the longitudinal limiting block is loosely fitted in the longitudinal limiting groove.

8. The switching device for the welding main line trolley according to claim 7, characterized in that: A longitudinal guide structure is provided on the side surface of the first end portion, and the upper end of the longitudinal limit block is slidably connected to the longitudinal guide structure.

9. The switching device for the welding main line trolley according to claim 6, characterized in that: The transverse limiting structure includes a transverse limiting groove provided at the front end and / or rear end of the connecting seat and a transverse limiting block provided at the front end and / or rear end of the floating seat, and the transverse limiting block is loosely fitted in the transverse limiting groove.

10. A method for using the switching device for a welding main line trolley according to any one of claims 1 to 9, characterized in that: The steps include: S1: Connect the switching device to the robot; S2: The robot moves along a fixed track and drives the switching device to operate, and uses the toggle head of the handle operating assembly to flip all the flipping mechanisms on the welding main line trolley to the non-working position; S3: The robot moves along the fixed track and drives the switching device to actuate. The handle of the sliding mechanism is lifted by the handle operating assembly, and the position of the sliding mechanism is adjusted. After the adjustment is in place, the handle of the sliding mechanism is released or pressed down, and the sliding mechanism is positioned on the base of the welding main line trolley; S4: The robot moves along a fixed track and drives the switching device to reach the designated flipping mechanism in sequence, and uses the toggle head of the handle operating assembly to flip the flipping mechanism to the working position in sequence; S5: Complete the preparation work for welding the main line trolley.

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