Switching device for welding main line trolley and using method of switching device

Abstract

The invention discloses a switching device for welding a main line trolley and a using method of the switching device. The switching device comprises a lengthwise device body, a quick connection structure used for being connected with a robot, a handle control assembly used for operating a handle of a sliding mechanism and a handle control assembly used for operating a handle of a turnover mechanism. According to the switching device for welding the main line trolley and the using method of the switching device, a sliding mechanism handle and a turnover mechanism handle can be automatically operated by using a robot and adopting one set of switching device, the sliding mechanism handle and the turnover mechanism handle do not need to be specially operated manually, the labor intensity is reduced, and the working efficiency is greatly improved; and the operation safety is improved.

Description

Technical Field

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

[0002] The main welding line trolley is a multi-model random mixed flow production line for white body, generally with 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 flipping mechanisms 103. The sliding mechanism 102 is slidably arranged on the base 101 and can be slidably adjusted along the length direction (X direction) of the base 101. A number of positioning holes are arranged at intervals on the base 101. A sliding mechanism handle 1021 is hinged on the bottom plate of the sliding mechanism 102, and a latch 1022 is connected to the bottom of the sliding mechanism handle 1021. The latch 1022 is plugged in and out by manually lifting and pressing down the sliding mechanism handle 1021. When moving the sliding mechanism 102, it is necessary to lift the sliding mechanism handle 1021 by hand so that the latch 1022 leaves the positioning hole of the base 101. After the sliding mechanism 102 is moved into place, the sliding mechanism handle 1021 is lowered so that the latch 1022 is inserted into the positioning hole of the base 101, which plays a role in limiting the movement of the sliding mechanism 102.

[0003] A plurality of pairs of vertical brackets 1023 are respectively arranged on opposite sides of the sliding mechanism 102, and a set of flipping mechanisms 103 are respectively hinged on each vertical bracket 1023, and each flipping mechanism 103 arranged oppositely is used for positioning one type of vehicle. If two sets of flipping mechanisms 103 are arranged at intervals along the X direction on the sliding mechanism 102, it can be used for positioning two types of vehicles; if three sets of flipping mechanisms 103 are arranged at intervals along the X direction on the sliding mechanism 102, it can be used for positioning three types of vehicles, and so on.

[0004] If it is necessary to adjust the position of the flipping mechanism 103 along the X direction, 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 body in white for positioning. Figure 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 deflected 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 and switched between the working position and the non-working position by manually holding the flipping mechanism handle 1032. During operation, manual labor is required to bend over frequently, which has high labor intensity. 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 prior art 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 with 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 a sliding mechanism handle and a flip mechanism handle;

[0011] The switching device comprises a longitudinal device body, a quick-connect structure for connecting with a robot, a handle operating assembly for operating the handle of the sliding mechanism, and a handle operating assembly for operating the handle of the flipping mechanism;

[0012] The device body comprises a first end and a second end that are arranged opposite to each other, and the quick-connect structure is arranged on the back side of the device body;

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

[0014] The handle operating assembly is arranged on the front side of the second end portion, and the handle operating assembly 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 clamping jaws arranged opposite to each other 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 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 arranged 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 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 gap-fitted in the transverse 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 a non-working position;

[0030] S3: The robot moves along the fixed track and drives the switching device to operate. 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 arrive at the designated flipping mechanism in turn, and uses the toggle head of the handle operating assembly to flip the flipping mechanism to the working position in turn;

[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 the 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 with the robot; the handle operating assembly is used to lift, release or press down the sliding mechanism handle of the sliding mechanism to complete the adjustment and locking of the sliding mechanism; the handle operating assembly toggles the flip mechanism handle through the toggle head to drive the flip mechanism to flip, so as to switch between the working position and the non-working position.

[0035] In summary, the switching device for the welding main line trolley and the use method thereof provided by the present invention utilize a set of switching devices by a robot to manipulate the sliding mechanism handle and the flip mechanism handle, thereby reducing labor intensity, greatly improving work efficiency, and improving 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 only for illustrative purposes 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 is a three-dimensional diagram of a device body and a connecting arm connected together;

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

[0043] Figure 7 A three-dimensional diagram of the handle control assembly at one viewing angle;

[0044] Figure 8 is a stereoscopic view of the handle control assembly from another viewing angle;

[0045] Fig. 9 is a three-dimensional diagram of a driving module;

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

[0047] Fig.11 A three-dimensional diagram of a connection seat provided with a transverse guide rail;

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

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

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

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

[0052] Fig.16 A schematic diagram of using a toggle head to flip the flip mechanism;

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

[0054] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. The same components are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific 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 the welding main line trolley. As described in the background technology, the welding main line trolley is used to support the body in white. A sliding mechanism 102 is provided on the base 101 of the welding main line trolley, and a flipping mechanism 103 is provided on the sliding mechanism 102. The sliding mechanism 102 is provided with a sliding mechanism handle 1021 and a latch 1022, and the flipping mechanism 103 is provided 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 latch 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 latch 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 flipping mechanism 103 so that the positioning pin 1031 of the flipping 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 long and can adopt a straight-line structure of longitudinal beams, pipe columns, plates, etc. One end of the device body 1 is called a first end 11, and the other end is called 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] The quick connection structure 2 is arranged on the back of the device body 1, and can adopt a structure such as a flange plate to quickly connect with the mechanical arm 71 of the robot 7. The switching device is driven to move by the robot 7, and is driven by the mechanical arm 71 to adjust the position, angle and direction so as to cooperate with the sliding mechanism 102 and the flipping mechanism 103.

[0067] The handle operating assembly 3 is disposed below the first end 11 , and may 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 portion 12. Preferably, the handle operating assembly 4 is aligned with the quick-connect structure 2. The swing angle of the mechanical arm 71 is the swing angle of the handle operating assembly 4, which is also beneficial for the mechanical arm 71 to directly apply a thrust or a pull to the handle operating assembly 4, thereby driving the flipping mechanism 103 to flip so as to 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, and the pivot shaft 44 is arranged parallel to the device body 1, that is, the pivot shaft 44 is arranged along the longitudinal direction. Therefore, the toggle head 42 can swing relative to the connecting arm 41, and it can swing toward the top surface side of the device body 1 or the connecting arm 41, and it can also swing toward the bottom surface 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 , and 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 groups of elastic buffer elements 43 are used to provide buffering.

[0073] Two sets of elastic buffer elements 43 are arranged on the upper and lower sides of the pivot shaft 44 to play a buffering role. Specifically, the elastic buffer element 43 can be a spring, one end of which is connected to the connecting arm 41, and the other end of which is connected to the toggle head 42. When the toggle head 42 toggles the positioning pin 1031 or the flip mechanism handle 1032, if transitional driving occurs, the elastic buffer element 43 is deformed to offset the transitional driving.

[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 respectively. 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 a pushing and pulling action, 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. 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 mechanical arm 71 drives the switching device to swing to a certain angle, and the robot 7 moves along a preset trajectory, such as Fig.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 at 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 can operate the sliding mechanism handle 1021 and the flipping mechanism handle 1032 by using a set of switching devices with the robot 7, thereby realizing automated operation, reducing labor intensity, greatly improving work efficiency, and improving operation safety.

[0080] In one embodiment, if 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 utilized 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, thereby avoiding a hard collision with the flip mechanism handle 1032 and playing a protective role.

[0081] In one embodiment, if 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 that there are certain differences among the main welding line workshops, the trajectory of the same robot 7 cannot adapt to all the main welding line trolleys, and there may be insufficient drive and inability to switch in place, so a torque sensor 6 is configured to monitor the torque of the connecting arm 41. The torque sensor 6 will monitor the torque of the toggle head 42 after the motion trajectory of the robot 7 ends, and set the torque threshold in advance. If the current torque reaches the torque threshold, it is considered that the switch is in place; if the current torque does not reach the torque threshold, a signal is sent, and the robot arm 71 of the robot 7 continues to drive the flip mechanism 103 to flip according to the preset feed amount. The feed amount can be selected between 3mm-7mm.

[0083] In one embodiment, if Figure 6-9 and Fig.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 clamping jaws 331 disposed opposite to each other 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 clamped state, the two clamping jaws 331 can lift the sliding mechanism handle 1021 .

[0086] In this embodiment, the handle operating 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 transverse directions to meet the need for the clamp 33 to hold the sliding mechanism handle 1021 and / or the latch 1022. The momentum can be selected between ±5mm.

[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 adopt a telescopic brake structure or a clamping brake structure. The brake module 32 and the floating mechanism 31 are fixedly arranged along the longitudinal interval. In normal state, the brake module 32 releases the brake, and the floating mechanism 31 can float. After the brake module 32 opens the brake, the floating mechanism 31 fixedly connected thereto cannot float, thereby positioning the floating mechanism 31. The brake module 32 can be fixed to the surrounding connection structure, for example, the first end 11 or a guide rail provided at the first end 11.

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

[0090] In one embodiment, if Figure 7 and Fig.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 claw 331 is L-shaped, and includes 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 part of the driving module 332, and the horizontal plate 3312 extends inward. The end of the horizontal plate 3312 has a semicircular clamping claw groove 3313. When the two clamping claws 331 are in a clamping state, the two clamping claw grooves 3313 are connected to form a clamping claw through hole 3314, and the latch 1022 can be clamped. The sliding mechanism handle 1021 passes through the space between the two vertical plates 3311.

[0092] In one embodiment, if Figure 6-8 , Fig.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 portion 11, a connecting seat 312 connected above the driving module 332 and having a transverse guide rail 313, and a floating seat 314 slidably 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 fixedly arranged on the bottom surface of the first end portion 11. The connecting seat 312 is fixedly connected above the driving module 332, and the transverse guide rail 313 is arranged in the connecting seat 312, and the transverse guide rail 313 is arranged perpendicular to the longitudinal guide rail 311. The top surface of the floating seat 314 is provided with a longitudinal slide groove 3141 for assembly and connection with the longitudinal guide rail 311; the bottom surface of the floating seat 314 is provided with a transverse slide groove 3142 for assembly and connection with the transverse guide rail 313. The connecting seat 312 can drive the driving module 332 and the clamping claw 331 to float in the longitudinal and transverse directions.

[0096] The brake module 32 is assembled with the longitudinal guide rail 311, and the brake module 32 is fixedly connected with 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, so the floating seat 314 can float in the longitudinal direction. When the brake module 32 is engaged, the brake module 32 and the longitudinal guide rail 311 are locked, so the floating seat 314 can no longer float 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, if Figure 5-8 As shown, the longitudinal limiting structure includes a longitudinal limiting groove 14 provided on the side of the first end portion 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 limit structure adopts a combination of a longitudinal limit groove 14 and a longitudinal limit block 315. The longitudinal limit groove 14 is arranged on the side of the first end 11, and the longitudinal limit block 315 is arranged on the side of the floating seat 314. After assembly, the longitudinal limit block 315 is loosely fitted in the longitudinal limit groove 14, leaving a certain gap in the longitudinal direction to limit the longitudinal floating amount.

[0101] In one embodiment, if Figure 6-8 As shown, a longitudinal guide structure 15 is provided on the side 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 slidably 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, if Figure 6-8 and Figure 11-12 As shown, the lateral limiting structure includes a lateral limiting groove 3121 arranged at the front end and / or rear end of the connecting seat 312 and a lateral limiting block 316 arranged 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 transverse limiting structure adopts a combination of a transverse limiting groove 3121 and a transverse limiting block 316. A transverse limiting groove 3121 is provided at the front end or rear end of the connecting seat 312. Preferably, a transverse limiting groove 3121 is provided at the front end and rear end of the connecting seat 312. A transverse limiting block 316 extending downward is provided at the front end or rear end of the floating seat 314. Preferably, a transverse limiting block 316 is provided at the front end and rear end of the floating seat 314. After assembly, the transverse limiting block 316 is loosely fitted in the transverse limiting groove 3121, leaving a certain gap in the transverse direction to limit the transverse floating amount.

[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] Combination Figure 1-17 As shown, a method for using a switching device for a welding main line trolley provided by an embodiment of the present invention includes 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 assembly 3 is used to lift the sliding mechanism handle 1021 and adjust the position of the sliding mechanism 102. After the adjustment is in place, 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 arrive at the designated flipping mechanism 103 in turn, and uses the toggle head 42 of the handle operating assembly 4 to flip the flipping mechanism 103 to the working position in turn.

[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. 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 mechanical arm 71 drives the switching device to swing to a certain angle, and the robot 7 moves along a preset trajectory, such as Fig.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 at 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 can operate the sliding mechanism handle 1021 and the flipping mechanism handle 1032 by using a set of switching devices with the robot 7, 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 modifications can be made based on the principles of the present invention, which should also be considered as the protection scope 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 in that The switching device comprises a longitudinal device body, a quick-connect structure for connecting with a robot, a handle operating assembly for operating the handle of the sliding mechanism, and a handle operating assembly for operating the handle of the flipping mechanism; The device body comprises a first end and a second end that are arranged opposite to each other, and the quick-connect structure is arranged on the back side of the device body; The handle operating assembly is disposed below the first end portion and is capable of lifting, releasing or pressing down the sliding mechanism handle; The handle operating assembly is arranged on the front side of the second end portion, and the handle operating assembly 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 welding main line trolley according to claim 1 is characterized in that: A rotating wheel is arranged at the end of the toggle head.

3. The switching device for 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 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 clamping jaws arranged opposite to each other 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 welding main line trolley according to claim 4 is characterized in that: The end of the clamping jaw is provided with a clamping jaw groove. 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, and the positioning pin under the handle of the sliding mechanism passes through the clamping jaw through hole.

6. The switching device for welding main line trolley according to claim 4, characterized in that: The floating mechanism comprises a longitudinal guide rail arranged 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 and the floating seat, and a transverse limiting structure is provided between the connecting seat and the floating seat.

7. The switching device for welding main line trolley according to claim 6, characterized in that: The longitudinal limiting structure comprises a longitudinal limiting groove arranged 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 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 welding main line trolley according to claim 6, characterized in that: The transverse limiting structure includes a transverse limiting groove arranged at the front end and / or rear end of the connecting seat and a transverse limiting block arranged 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 a non-working position; S3: The robot moves along the fixed track and drives the switching device to operate. 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 arrive at the designated flipping mechanism in turn, and uses the toggle head of the handle operating assembly to flip the flipping mechanism to the working position in turn; S5: Complete the preparation work for welding the main line trolley.

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