CN216607820U - Positioner and welding set - Google Patents

Abstract

The utility model relates to a positioner and a welding device, the positioner comprises: a frame, a table, a joystick, and a guard. The frame is provided with a switch. The workbench is rotatably arranged on the frame. One end of the operating rod is rotatably arranged on the frame. The protection piece is rotatably arranged on the rack, and a rotating end of the protection piece is in transmission connection with a rotating end of the operating rod, so that the protection piece can synchronously rotate along with the operating rod. When the operating rod rotates to shelter from the switch front side, the protection piece rotates to one side close to the rack, and the protection effect on an operator cannot be achieved. But the switch is sheltered from the rear side of the operating rod at the moment, so that the phenomenon that the workbench is started by misoperation to rotate and injure an operator is avoided. When the operating lever is rotated to be away from the switch, the guard is rotated to one side of the workbench in the transverse direction, and a laterally spaced guard space is formed between the guard and the workbench. At the moment, a switch of the positioner can be started, and the workbench rotates in the protective space.

Description

Positioner and welding set

Technical Field

The utility model relates to the field of engineering machinery, in particular to a positioner and a welding device.

Background

In the welding process, manual welding is often used, a large amount of skilled welding technicians are needed, the welding efficiency is low, and the welding quality is not easy to control. Consequently, a large amount of welding robot has appeared, carries out automatic or full-automatic welding to save process time, improve welding work efficiency, the robot welder often working range is less, can't carry out 360 degrees weldings.

In the related technology, the positioner is used as a welding auxiliary device, and the turnover mechanism drives the workbench to rotate 360 degrees, so that the position and the angle of a workpiece fixed on the workbench are continuously changed to achieve a required welding station. However, the current positioner in the industry has no protection device, and the workbench is operated in an open mode, so that the operators and the cooperative operators cannot be effectively isolated. Because the workbench operates in 360-degree rotation, the dangerous area is difficult to distinguish and isolate through marking marks and other methods. The collision injury and the extrusion injury of operators and cooperative operators can be easily caused when the workbench continuously runs.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a positioner and a welding device, which can avoid the injury to personnel caused by the operation of the positioner.

In order to solve the technical problems, the utility model adopts the following technical scheme.

According to an aspect of the present invention, there is provided a displacement machine including: a frame on which a switch is arranged; the workbench is rotatably arranged on the rack; one end of the operating rod is rotatably arranged on the rack; the protection piece is rotatably arranged on the rack, and a rotating end of the protection piece is in transmission connection with a rotating end of the operating rod so that the protection piece can synchronously rotate along with the operating rod; wherein the operating lever has a first state of rotating to be shielded at the front side of the switch and a second state of rotating to be far away from the switch; when the operating lever is rotated to the first state, the protection piece is synchronously rotated to one side close to the rack; when the operating lever is rotated to the second state, the guard is synchronously rotated to one side of the workbench in the transverse direction, and a laterally spaced guard space is formed between the guard and the workbench.

In some embodiments of the present application, the guard comprises a rotating bar and a guard bar; one end of the rotating rod is rotatably arranged on the rack, and the rotating end of the rotating rod is in transmission connection with the rotating end of the operating rod, so that the rotating rod can synchronously rotate along with the operating rod; the protective rod is arranged on the periphery of the workbench and connected with the other end of the rotating rod; in the first state, the guard bar moves to a side close to the rack; in the second state, the guard bar moves to one side of the workbench in the transverse direction; the protection space is formed between the protection rod and the workbench.

In some embodiments of the present application, the number of the rotating rods is two, and the two rotating rods are respectively a first rotating rod and a second rotating rod; the first rotating rod and the second rotating rod are arranged in parallel at intervals and are respectively arranged on two axial sides of the workbench; one end of the first rotating rod is rotatably arranged on the rack, and the rotating end of the first rotating rod is in transmission connection with the rotating end of the operating rod; one end of the second rotating rod is rotatably arranged on the rack; one end of the protection rod is connected to the other end of the first rotating rod, and the other end of the protection rod is connected to the other end of the second rotating rod; the extending direction of the guard bar is parallel to the axial direction of the workbench.

In some embodiments of the present application, the operating lever is disposed on a side of the first rotating rod away from the second rotating rod.

In some embodiments of the present application, the positioner further comprises a first gear and a second gear; the first gear is arranged at the rotating end of the rotating rod and coaxially and synchronously rotates with the rotating rod; the second gear is arranged at the rotating end of the operating lever and coaxially and synchronously rotates with the operating lever; the first gear and the second gear are in meshed transmission connection with each other.

In some embodiments of the present application, the positioner further comprises a support table; the support table is arranged on the rack and is arranged below the switch at intervals; the rotating end of the rotating rod is rotatably connected to the supporting platform; the first gear and the rotating rod are coaxially and rotatably arranged on the supporting platform; the rotating end of the operating lever is rotatably connected to the supporting platform; the second gear and the operating rod are coaxially and rotatably arranged on the supporting platform.

In some embodiments of the present application, the positioner further comprises a limit stop; the limiting piece is rotatably connected to the supporting platform; in the second state, when the limiting member can rotate from the outside of the rotation plane of the operating lever to the inside of the rotation plane of the operating lever, the limiting member abuts against the operating lever to prevent the operating lever from rotating upwards.

In some embodiments of the present application, the positioner further comprises a support column; the supporting columns extend vertically; the upper ends of the supporting columns are arranged below the switch at intervals; the support table is arranged at the upper end of the support column; the lower end of the supporting column is detachably arranged on the rack.

In some embodiments of the present application, a baffle is disposed on the operating lever; in the first state, the baffle shields the front side of the switch.

According to another aspect of the present invention, there is provided a welding apparatus including a frame, a table, a welding machine, and a positioner; the positioner adopts the positioner in any one of the above embodiments; the two racks are respectively a first rack and a second rack; the first rack and the second rack are arranged in parallel at intervals; a first switch is arranged on one side, far away from the second rack, of the first rack; a second switch is arranged on one side, far away from the first rack, of the second rack; the two work tables are respectively a first work table and a second work table; the first workbench is rotatably arranged on the first rack, and the second workbench is rotatably arranged on the second rack; the welding machine is arranged between the first rack and the second rack; the two control levers are respectively a first control lever and a second control lever; the first operating rod is rotatably arranged on one side, far away from the welding machine, of the first rack; the second operating rod is rotatably arranged on one side, far away from the welding machine, of the second rack; the protection parts are provided with two first protection parts and two second protection parts; the first protection piece is arranged on one side of the first rack far away from the welding machine, and a rotating end of the first protection piece is in transmission connection with a rotating end of the first operating rod; the second protection piece is arranged on one side, far away from the welding machine, of the second rack, and a rotating end of the second protection piece is in transmission connection with a rotating end of the second operating rod.

According to the technical scheme, the embodiment of the utility model at least has the following advantages and positive effects:

according to the positioner and the welding device provided by the embodiment of the utility model, the rotating end of the protection piece is in transmission connection with the rotating end of the operating lever, when the operating lever is rotated to a first state of shielding the operating lever at the front side of the switch, the protection piece synchronously rotates to one side close to the rack, and the protection piece cannot protect an operator. But the switch is sheltered from the rear side of control rod at this moment, consequently can't press the switch and start the machine of shifting, avoided the workstation to be opened by the maloperation and begin to rotate and bump the operator.

When the operating lever is rotated to the second state of keeping away from the switch, the protection piece rotates to the horizontal one side of workstation in step to form horizontal spaced guard space between protection piece and workstation, can start the switch of machine of shifting this moment, the workstation is at the guard space internal rotation, and then can avoid the machine of shifting to cause the injury to the operator when the operation.

Drawings

Fig. 1 is a schematic structural diagram of a positioner according to an embodiment of the present invention.

Fig. 2 is a side view of fig. 1.

Fig. 3 is a schematic view of the structure of fig. 1 in another state.

Fig. 4 is a side view of fig. 3.

Fig. 5 is a schematic structural view of the guard of fig. 1.

Fig. 6 is an enlarged schematic view of the region a in fig. 5.

Fig. 7 is a side view of fig. 5.

Fig. 8 is an enlarged schematic view of the region B in fig. 7.

Fig. 9 is a schematic view of the structure of the guard of fig. 3.

Fig. 10 is an enlarged schematic view of region C in fig. 9.

Fig. 11 is a side view of fig. 9.

Fig. 12 is an enlarged schematic view of region D in fig. 11.

Fig. 13 is a schematic structural diagram of a welding apparatus according to an embodiment of the present invention.

The reference numerals are explained below: 1. a frame; 11. a first upright post; 111. a switch; 12. a second upright post; 13. a base; 2. a turnover mechanism; 21. an active device; 22. a driven device; 3. a work table; 4. a guard; 41. a support pillar; 42. a support table; 421. a support plate; 422. a first mounting plate; 423. a second mounting plate; 424. a first rotating shaft; 425. a second rotating shaft; 43. a joystick; 431. a baffle plate; 432. a main body section; 433. an abutment section; 44. a guard; 441. a rotating rod; 4411. a first rotating lever; 4412. a second rotating rod; 442. a guard bar; 45. a transmission assembly; 451. a first gear; 452. a second gear; 46. a limiting member; 47. mounting a column; 51. a first frame; 52. a second frame; 61. a first table; 62. a second table; 71. a first joystick; 72. a second joystick; 81. a first guard; 82. a second guard; 91. a first switch; 92. a second switch.

Detailed Description

Exemplary embodiments that embody features and advantages of the utility model are described in detail below in the specification. It is to be understood that the utility model is capable of other embodiments and that various changes in form and details may be made therein without departing from the scope of the utility model and the description and drawings are to be regarded as illustrative in nature and not as restrictive.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present application, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Referring to fig. 1, a positioner according to an embodiment of the present invention includes a frame 1, a turnover mechanism 2, a worktable 3, and a protection device 4.

The frame 1 is used for installing a turnover mechanism 2, a workbench 3 and a protection device 4.

The frame 1 comprises a base 13, a first upright 11, a second upright 12 and a base 13.

The first upright post 11 and the second upright post 12 both extend vertically and are arranged in parallel at intervals. The first upright 11 cooperates with the second upright 12 for mounting the tilting mechanism 2 and the table 3. And a switch 111 is provided on the front side surface of the first pillar 11 to activate the turnover mechanism 2 by pressing the switch 111.

The base 13 is used for supporting the first upright 11 and the second upright 12, and fixing the first support and the second support rod on the base 13 to prevent the first support and the second support rod from moving relatively. The base 13 is also used for mounting the guard 4.

The turnover mechanism 2 comprises a driving device 21 and a driven device 22, wherein the driving device 21 is arranged on the first upright post 11, and the driven device 22 is arranged on the second upright post 12. The driving device 21 is activated by pressing the switch 111 on the first upright 11, so that the driving device 21 cooperates with the driven device 22 to drive the worktable 3 to rotate.

The worktable 3 is disposed between the first column 11 and the second column 12, one axial end of the worktable 3 is connected to the driving device 21, and the other axial end of the worktable 3 is connected to the driven device 22 to rotate under the driving of the driving device 21, so as to constantly change the position and angle of the workpiece fixed on the worktable 3.

Referring to fig. 1 to 4, the protection device 4 is disposed on the base 13, and the protection device 4 is used to prevent an operator from entering a rotation area of the workbench 3 during operation, so as to prevent the workbench 3 from hurting the operator during rotation.

Referring to fig. 5 and 6, the protection device 4 includes a support column 41, a support platform 42, an operating lever 43, a protection member 44, a transmission assembly 45 and a limiting member 46.

Referring to fig. 1 to 4, the supporting column 41 extends vertically, and the supporting column 41 is disposed on the base 13 and on the front side of the first upright 11. The support column 41 is used to mount the support table 42, the operating lever 43, the guard 44, the transmission assembly 45, and the stopper 46. The upper ends of the supporting columns 41 are arranged below the switch 111 at intervals, and the lower ends of the supporting columns 41 are detachably arranged on the base 13, so that the protection device 4 is convenient to install and maintain and is suitable for positioner models of different models.

In other embodiments, the support post 41 is integrally welded to the base 13.

Referring to fig. 6 in conjunction with fig. 1 and 3, the supporting platform 42 is disposed at the top end of the supporting column 41, and the height of the supporting platform 42 is lower than the height of the switch 111 on the first column 11, i.e. the supporting platform 42 is disposed below the switch 111 at intervals.

In other embodiments, the stand column is not required, and the support table 42 is integrally welded to the first stand column 11.

It will be appreciated that the support platform 42 may also be removably mounted to the first upright 11.

Referring to fig. 6 in conjunction with fig. 2 and 4, one end of the operating lever 43 is rotatably disposed on the supporting base 42, and the operating lever 43 can rotate around the supporting base 42, so that the end of the operating lever 43 away from the rotating end can rotate upward or downward.

When the end of the operating lever 43 away from the rotating end is rotated upwards, the operating lever 43 can be shielded in front of the switch 111, and further the switch 111 can be prevented from being pressed, i.e. the active device 21 cannot be started to rotate the working platform 3, as shown in fig. 1, and further the positioner can be effectively prevented from being started due to misoperation. When the end of the lever 43 away from the pivot end is pivoted downward, the lever 43 can be moved away from the switch 111, and the switch 111 can be pressed to normally activate the actuator 21 to rotate the table 3, as shown in fig. 3.

For convenience of description, a state in which the lever 43 is shielded on the front side of the switch 111 as shown in fig. 1 is referred to as a first state, and a state in which the lever 43 is spaced apart from the switch 111 as shown in fig. 3 is referred to as a second state.

In other embodiments, the switch 111 may be disposed below the support platform 42, and when the end of the operating rod 43 away from the rotating end is rotated downward, the operating rod 43 can be shielded from the front side of the switch 111. When the end of the lever 43 remote from the rotation end thereof is rotated upward, the lever 43 can be moved away from the switch 111.

Referring to fig. 1 to 4, in some embodiments, the lever 43 is provided with a blocking plate 431, and when the lever 43 rotates to the first state, the blocking plate 431 blocks the front side of the switch 111, so that the blocking range is expanded by the blocking plate 431 to prevent an operator or other people from pressing the switch 111.

Still referring to fig. 1 to 4, the protection member 44 is rotatably disposed on the supporting platform 42, and the protection member 44 can rotate around the supporting platform 42, so that the portion of the protection member 44 away from the rotating end thereof can rotate upward or downward.

The rotation end of the prevention piece 44 is drivingly connected to the rotation end of the operating lever 43, so that the operator can rotate the prevention piece 44 synchronously by rotating the operating lever 43.

Referring to fig. 1 and 2, when the operating lever 43 is rotated to the first state, the portion of the protection member 44 away from the rotation end thereof is synchronously rotated downward to a side close to the base 13, and the protection member 44 cannot protect the operator. However, since the switch 111 is shielded on the rear side of the joystick 43 at this time, the active device 21 cannot be activated by pressing the switch 111, and the table 3 is prevented from starting to rotate due to an erroneous operation and from hitting an operator.

Referring to fig. 3 and 4, when the operating lever 43 is rotated to the second state, the portion of the shielding member 44 away from the rotating end thereof is synchronously rotated upward to one side of the workbench 3 in the transverse direction, and a laterally spaced shielding space is formed between the shielding member 44 and the workbench 3. Because the operating rod 43 is far away from the switch 111 at the moment, the switch 111 of the positioner can be normally started, the workbench 3 can rotate in the protective space, the protection piece 44 is used for preventing personnel from approaching, and the injury to an operator caused by the positioner in the operation process is avoided.

In other embodiments, when the operating lever 43 is rotated to the first state, the portion of the protection member 44 away from the rotation end thereof may also be synchronously moved upward to the side near the first upright 11, so that the protection member 44 cannot protect the operator. In the second state of the operating lever 43, the portion of the shielding member 44 away from the rotating end thereof may also be synchronously rotated downward to one side in the lateral direction of the table 3 to form a laterally spaced shielding space between the shielding member 44 and the table 3.

In some embodiments, guard 44 includes a rotating rod 441 and a guard rod 442. One end of the rotating rod 441 is rotatably disposed on the supporting platform 42, and the rotating end of the rotating rod 441 is in transmission connection with the rotating end of the operating rod 43, so that the rotating rod 441 can synchronously rotate along with the operating rod 43, and the end of the rotating rod 441 far away from the rotating end synchronously rotates upwards or downwards.

The guard bar 442 is provided on the peripheral side of the table 3 and is connected to the end of the rotating rod 441 remote from the rotating end thereof.

Referring to fig. 3, when the operating lever 43 rotates to the first state, the end of the rotating rod 441 far from the rotating end thereof synchronously rotates downward and drives the protection rod 442 to move to a side close to the base 13, so that neither the protection rod 442 nor the rotating rod 441 can protect the operator.

Referring to fig. 4, when the operating lever 43 rotates to the second state, the end of the rotating rod 441 far from the rotating end thereof synchronously rotates upwards and drives the protection rod 442 to move to one side of the workbench 3 in the transverse direction, and a protection space is formed between the protection rod 442 and the workbench 3, so that the protection rod 442 and the rotating rod 441 can both play a role in protection.

It is understood that the guard bar 442 is located on the peripheral side of the table 3 regardless of whether it is moved below the table 3 or on the lateral side of the table 3.

Referring to fig. 5 in conjunction with fig. 1 and 3, in some embodiments, two rotating rods 441 are provided, namely a first rotating rod 4411 and a second rotating rod 4412, and the first rotating rod 4411 and the second rotating rod 4412 are disposed in parallel and spaced apart and are disposed on two axial sides of the working platform 3. One end of the first rotating rod 4411 is rotatably disposed on the supporting platform 42, and the rotating end of the first rotating rod 4411 is in transmission connection with the rotating end of the operating rod 43. One end of the second rotating rod 4412 is rotatably disposed on the second upright post 12, one end of the guard bar 442 is connected to the other end of the first rotating rod 4411, the other end of the guard bar 442 is connected to the other end of the second rotating rod 4412, and the extending direction of the guard bar 442 is parallel to the axial direction of the working table 3.

In some embodiments, the guard bar 442, the first rotating bar 4411 and the second rotating bar 4412 are integrally formed, and the guard 44 is integrally formed in a U-shaped structure.

In some embodiments, the protection member 44 may also be formed in a C-shaped structure or an arc-shaped structure as a whole.

The first rotating rod 4411 is rotated synchronously by rotating the operating lever 43, and the shielding rod 442 is driven to move, and the shielding rod 442 drives the second rotating rod 4412 to rotate synchronously with the first rotating rod 4411. When the operating lever 43 is rotated to the second state and the shielding bar 442 moves to one lateral side of the table 3, the first rotating bar 4411, the shielding bar 442, the second rotating bar 4412 and the table 3 form a closed area, thereby performing a safer protection function.

In some embodiments, a mounting post 47 is further disposed on the base 13, and the mounting post 47 is disposed on the front side of the second upright 12 and spaced from and parallel to the supporting post 41. The rotating end of the second rotating lever 4412 is provided on the second upright post 12.

It is understood that the mounting post 47 may be integrally welded to the base 13 or may be removably attached to the base 13.

In other embodiments, the extending direction of the protection rod 442 may be inclined to the axial direction of the working platform 3, and both ends of the protection rod 442 are respectively connected to different positions of the first rotating rod 4411 and the second rotating rod 4412.

In some embodiments, the operating lever 43 is disposed on a side of the first rotating lever 4411 away from the second rotating lever 4412, i.e., the operating lever 43 is disposed outside the enclosed area formed by the first rotating lever 4411, the shielding lever 442, the second rotating lever 4412 and the worktable 3, so that the operating lever 43 is more convenient and prevented from being blocked by the shielding lever 442 when the operating lever 43 is rotated.

Referring to fig. 6, the transmission assembly 45 is disposed on the support platform 42 and is in transmission connection with the rotation end of the first rotation rod 4411 and the rotation end of the operating rod 43, that is, the rotation end of the first rotation rod 4411 and the rotation end of the operating rod 43 are in transmission connection through the transmission assembly 45. When the operating lever 43 is rotating, the transmission assembly 45 transmits the torque of the rotating end of the operating lever 43 to the rotating end of the first rotating lever 4411, thereby rotating the first rotating lever 4411.

Referring to fig. 7 and 8, in some embodiments, the transmission assembly 45 includes a first gear 451 and a second gear 452. The first gear 451 is provided at a rotation end of the first rotating lever 4411 and rotates coaxially and synchronously with the first rotating lever 4411, so that the first rotating lever 4411 can rotate coaxially and synchronously when the first gear 451 rotates. The second gear 452 is provided at the rotation end of the operating lever 43 and rotates coaxially and synchronously with the operating lever 43, so that when the operating lever 43 rotates, the second gear 452 can rotate coaxially and synchronously. The first gear 451 and the second gear 452 are in meshing transmission connection with each other, so that when the first gear 451 rotates in a forward direction, the second gear 452 rotates in a reverse direction due to the meshing action between the first gear 451 and the second gear 452.

Referring to fig. 4 to 8, when the end of the operating lever 43 away from the rotating end thereof is rotated upward, the first gear 451 is rotated in a forward direction, and the second gear 452 is rotated in a reverse direction, so that the end of the first rotating lever 4411 away from the rotating end thereof is rotated downward.

Referring to fig. 9 to 12, when the other end of the operating lever 43, which is far from the rotating end of the operating lever 43, rotates downward, the first gear 451 rotates in a reverse direction in synchronization, and the second gear 452 rotates in a forward direction, so that the end of the first rotating lever 4411, which is far from the rotating end thereof, rotates downward.

It should be noted that, since the protection lever 442 is disposed at the other end of the first rotating lever 4411 away from the rotating end of the first rotating lever 4411, and the protection lever 442 is heavy, the end of the first rotating lever 4411 away from the rotating end thereof automatically rotates downward, so that the end of the operating lever 43 away from the rotating end thereof rotates upward, and the operating lever 43 can automatically shield the front side of the switch 111.

Referring to fig. 6 and 10, in some embodiments, the supporting table 42 includes a supporting plate 421, a first mounting plate 422, a second mounting plate 423, a first rotating shaft 424 and a second rotating shaft 425. The supporting plate 421 is disposed on the top of the supporting column 41.

The first mounting plate 422 and the second mounting plate 423 are disposed in parallel and spaced apart left and right.

The first and second shafts 424 and 425 are arranged in parallel spaced front to back. The first shaft 424 is rotatably coupled to the first mounting plate 422 and the second mounting plate 423 and extends out of the second mounting plate 423 on a side facing away from the first mounting plate 422. The second shaft 425 is rotatably coupled to the first mounting plate 422 and the second mounting plate 423 and extends out of a side of the first mounting plate 422 facing away from the second mounting plate 423.

The first gear 451 is provided between the first mounting plate 422 and the second mounting plate 423, and is coaxially connected to the first rotating shaft 424. The rotating end of the first rotating lever 4411 is connected to a portion of the first rotating shaft 424 extending out of the second mounting plate 423, i.e., the first rotating lever 4411 and the first gear 451 are separately provided on both sides of the second mounting plate 423. The second gear 452 is disposed between the first mounting plate 422 and the second mounting plate 423, and is coaxially connected to the second rotating shaft 425. The rotation end of the operating lever 43 is connected to a portion of the second rotating shaft 425 extending out of the first mounting plate 422, i.e., the operating lever 43 and the second gear 452 are disposed on both sides of the first mounting plate 422. Therefore, the first rotating lever 4411 and the operating lever 43 are disposed on the left and right sides of the first gear 451 and the second gear 452, and the first rotating lever 4411 and the operating lever 43 do not interfere with each other when they are rotated relatively.

Referring to fig. 6 and 8 in combination with fig. 10 and 12, the position-limiting member 46 is rotatably connected to the supporting plate 421 and is located at the rear side of the first mounting plate 422. The stopper 46 is used to restrict the other end of the operating lever 43, which is away from the rotating end of the operating lever 43, from rotating upward.

Specifically, the operating lever 43 includes an abutting section 433 and a main body section 432, a portion of the operating lever 43 from an end close to the second rotating shaft 425 is the abutting section 433, and a portion of the operating lever 43 from an end far from the second rotating shaft 425 to the second rotating shaft 425 is the main body section 432.

Referring to fig. 8 and 12, in the process of changing the state of fig. 8 to the state of fig. 12, when the operator operates the main body segment 432 to rotate downward, the first rotating rod 4411 is driven to rotate upward synchronously, the protection rod 442 moves to one side of the workbench 3 in the transverse direction, and the abutting segment 433 rotates upward. At this time, the limiting member 46 is rotated in a direction of a side of the first mounting plate 422 facing away from the second mounting plate 423, and the limiting member 46 can extend out of the first mounting plate 422 and extend into a lower portion of the abutting section 433, that is, the limiting member 46 can be rotated from outside a rotation plane of the operating lever 43 to inside the rotation plane of the operating lever 43. The limiting part 46 is abutted against the abutting section 433, so that the abutting section 433 cannot rotate downwards, the main body section 432 cannot rotate upwards under the gravity action of the guard bar 442, and the guard bar 442 can be kept on one side of the workbench 3 in the transverse direction, and the displacement machine is protected.

Still referring to fig. 8 and 12, during the process of changing the state of fig. 12 to the state of fig. 8, the operator controls the main body segment 432 to continue to rotate downward a small distance, so that the abutting segment 433 rotates upward and separates from the limiting member 46. Therefore, the limiting member 46 can be rotated reversely, so that the limiting member 46 is rotated to a state perpendicular to the supporting plate 421, that is, the limiting member 46 is rotated back out of the rotation plane of the operating lever 43, and the limiting member 46 no longer prevents the abutting section 433 from rotating downward. At this time, the operator may release the main body segment 432, and the main body segment 432 will automatically rotate upward under the gravity of the protection rod 442 and be shielded at the front side of the switch 111.

Referring to fig. 13, based on the structure of the positioner, the embodiment of the utility model further provides a welding device. The welding device mainly comprises a frame 1, a workbench 3, a welding machine and a positioner. The positioner adopts the positioner of the embodiment.

The machine frame 1 is provided with two machine frames, namely a first machine frame 51 and a second machine frame 52, wherein the first machine frame 51 and the second machine frame 52 are arranged in parallel at intervals. A first switch 91 is disposed on a side of the first frame 51 away from the second frame 52. The second frame 52 is provided with a second switch 92 on a side thereof away from the first frame 51.

The work table 3 is provided with two, a first work table 61 and a second work table 62. The first table 61 is rotatably disposed on the first frame 51, and the second table 62 is rotatably disposed on the second frame 52.

The welding machine is provided between the first frame 51 and the second frame 52.

The operating lever 43 is provided with two separate operating levers, a first operating lever 71 and a second operating lever 72. The first lever 71 is rotatably mounted to the first frame 51 on the side away from the welding machine. The second lever 72 is rotatably mounted to the second frame 52 on a side thereof remote from the welder.

The guard member 44 is provided with two, first guard members 81 and second guard members 82. The first protection member 81 is disposed on a side of the first frame 51 away from the welding machine, and a rotation end of the first protection member 81 is drivingly connected to a rotation end of the first operating lever 71. The second guard member 82 is disposed on a side of the second frame 52 remote from the welder, and a rotating end of the second guard member 82 is drivingly connected to a rotating end of the second lever 72.

Since the area where the welding machine is located is a fixed working area, that is, the space between the first frame 51 and the second frame 52 is a fixed working area, it is easy to identify by scribing, and it is prevented that a person enters. The side of the first frame 51 away from the second frame 52 is still a working area of the first workbench 61, so that the first workbench 61 can be prevented from being injured by the operator due to the formation of the protection space between the first protection member 81 and the first workbench 61. Similarly, the second guard 82 can prevent the second table 62 from causing injury to the operator.

Moreover, the welding machine can not only weld the workpiece on the first workbench 61, but also weld the workpiece on the second workbench 62, so that the utilization rate of the welding machine is increased.

Based on the technical scheme, the embodiment of the utility model at least has the following advantages and positive effects.

According to the positioner and the welding device provided by the embodiment of the utility model, the rotating end of the protection piece 44 is in transmission connection with the rotating end of the operating lever 43, when the operating lever 43 is rotated to the first state of being shielded at the front side of the switch 111, the protection piece 44 synchronously rotates to one side close to the rack 1, and the protection piece 44 cannot protect an operator. However, at this time, the switch 111 is shielded at the rear side of the operating lever 43, so that the switch 111 cannot be pressed to start the positioner, and the phenomenon that the workbench 3 is started by misoperation to start to rotate and injure an operator is avoided.

When rotating control rod 43 to the second state of keeping away from switch 111, protection piece 44 rotates to the horizontal one side of workstation 3 in step to form horizontal spaced guard space between protection piece 44 and workstation 3, can start the switch 111 of machine of shifting this moment, workstation 3 is at the guard space internal rotation, and then can avoid the machine of shifting to cause the injury to the operator when the operation.

While the present invention has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims (10)

1. A positioner, characterized in that includes:

a frame on which a switch is arranged;

the workbench is rotatably arranged on the rack;

one end of the operating rod is rotatably arranged on the rack;

the protection piece is rotatably arranged on the rack, and a rotating end of the protection piece is in transmission connection with a rotating end of the operating rod so that the protection piece can synchronously rotate along with the operating rod;

wherein the operating lever has a first state of rotating to be shielded at the front side of the switch and a second state of rotating to be far away from the switch;

when the operating lever is rotated to the first state, the protection piece is synchronously rotated to one side close to the rack;

when the operating lever is rotated to the second state, the protection part is synchronously rotated to one side of the workbench in the transverse direction, and a laterally spaced protection space is formed between the protection part and the workbench.

2. The positioner of claim 1, wherein the guard comprises a rotating rod and a guard rod;

one end of the rotating rod is rotatably arranged on the rack, and the rotating end of the rotating rod is in transmission connection with the rotating end of the operating rod, so that the rotating rod can synchronously rotate along with the operating rod;

the protective rod is arranged on the periphery of the workbench and connected with the other end of the rotating rod;

in the first state, the guard bar moves to a side close to the rack;

in the second state, the guard bar moves to one side of the workbench in the transverse direction; the protection space is formed between the protection rod and the workbench.

3. The positioner according to claim 2, wherein there are two of the rotating rods, namely a first rotating rod and a second rotating rod;

the first rotating rod and the second rotating rod are arranged in parallel at intervals and are respectively arranged on two axial sides of the workbench;

one end of the first rotating rod is rotatably arranged on the rack, and the rotating end of the first rotating rod is in transmission connection with the rotating end of the operating rod;

one end of the second rotating rod is rotatably arranged on the rack;

one end of the protection rod is connected to the other end of the first rotating rod, and the other end of the protection rod is connected to the other end of the second rotating rod;

the extending direction of the guard bar is parallel to the axial direction of the workbench.

4. The positioner of claim 3, wherein the lever is disposed on a side of the first rotating rod remote from the second rotating rod.

5. The positioner of claim 2, further comprising a first gear and a second gear;

the first gear is arranged at the rotating end of the rotating rod and coaxially and synchronously rotates with the rotating rod;

the second gear is arranged at the rotating end of the operating lever and coaxially and synchronously rotates with the operating lever;

the first gear and the second gear are in meshed transmission connection with each other.

6. The positioner of claim 5, further comprising a support table;

the support table is arranged on the rack and is arranged below the switch at intervals;

the rotating end of the rotating rod is rotatably connected to the supporting platform; the first gear and the rotating rod are coaxially and rotatably arranged on the supporting platform;

the rotating end of the operating lever is rotatably connected to the supporting platform; the second gear and the operating rod are coaxially and rotatably arranged on the supporting platform.

7. The positioner of claim 6, further comprising a limit stop;

the limiting piece is rotatably connected to the supporting platform;

in the second state, when the limiting member can rotate from the outside of the rotation plane of the operating lever to the inside of the rotation plane of the operating lever, the limiting member abuts against the operating lever to prevent the operating lever from rotating upwards.

8. The positioner of claim 6, further comprising support posts;

the supporting columns extend vertically;

the upper ends of the supporting columns are arranged below the switch at intervals; the support table is arranged at the upper end of the support column;

the lower end of the supporting column is detachably arranged on the rack.

9. The positioner of claim 1, wherein the lever is provided with a stop;

in the first state, the baffle shields the front side of the switch.

10. A welding device is characterized by comprising a rack, a workbench, a welding machine and a positioner; the positioner is the positioner according to any one of claims 1 to 9;

the two racks are respectively a first rack and a second rack;

the first rack and the second rack are arranged in parallel at intervals;

a first switch is arranged on one side, far away from the second rack, of the first rack;

a second switch is arranged on one side, far away from the first rack, of the second rack;

the two work tables are respectively a first work table and a second work table;

the first workbench is rotatably arranged on the first rack, and the second workbench is rotatably arranged on the second rack;

the welding machine is arranged between the first rack and the second rack;

the two control levers are respectively a first control lever and a second control lever;

the first operating rod is rotatably arranged on one side, far away from the welding machine, of the first rack;

the second operating rod is rotatably arranged on one side, far away from the welding machine, of the second rack;

the protection parts are provided with two first protection parts and two second protection parts;

the first protection piece is arranged on one side of the first rack far away from the welding machine, and a rotating end of the first protection piece is in transmission connection with a rotating end of the first operating rod;

the second protection piece is arranged on one side, far away from the welding machine, of the second rack, and a rotating end of the second protection piece is in transmission connection with a rotating end of the second operating rod.

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