Welding positioner and welding equipment

Abstract

The utility model relates to the technical field of welding auxiliary equipment, in particular to a welding positioner and welding equipment. A rotating frame of the welding positioner is rotatably connected to the rack; the two first sliding parts are slidably connected to the rotating frame in the first preset direction and are in transmission connection with the first driving unit. Each clamping assembly is correspondingly connected with one first sliding piece, and the two clamping assemblies are both used for clamping workpieces. The first driving unit is used for driving the two first sliding pieces to move in the direction close to each other or away from each other relative to the rotating frame. The welding positioner is flexible to operate, convenient to use and capable of meeting the mounting requirements of workpieces of different structural sizes and adjusting the positions of the mounted workpieces in an overturning mode, so that the universality can be improved, the welding requirements of different types can be met, the welding efficiency is improved, the welding quality is improved, and the welding cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of welding auxiliary equipment technology, and more specifically, to a welding positioner and welding equipment. Background Technology

[0002] When manufacturing frame-type workpieces such as doors, windows, and other types of frame railings, it is necessary to ensure that each component is parallel or perpendicular to the others. The dimensional requirements are high, and various dimensions need to be changed frequently. Therefore, the length and width dimensions need to be precisely positioned during welding. However, existing welding positioners cannot quickly and accurately change the positioning dimensions or flip over to perform double-sided welding, resulting in low precision and efficiency in welding manufacturing. Utility Model Content

[0003] The purpose of this utility model is to provide a welding positioner and welding equipment that is flexible in operation and easy to use, can meet the installation requirements of workpieces with different structural dimensions, and can also adjust the position of the installed workpiece by flipping, thereby improving versatility, adapting to different types of welding needs, improving welding efficiency, and thus helping to improve welding quality and reduce welding costs.

[0004] The embodiments of this utility model can be implemented as follows:

[0005] In a first aspect, this utility model provides a welding positioner, which includes a frame, a rotating frame, a first sliding component assembly, and two clamping components.

[0006] The rotating frame is rotatably connected to the machine frame, and the rotation axis of the rotating frame relative to the machine frame is parallel to a first preset direction; the first sliding component assembly includes a first driving unit and at least two first sliding components. The first driving unit is connected to the rotating frame, and the two first sliding components are slidably connected to the rotating frame along the first preset direction and are both connected to the first driving unit in a transmission manner; each clamping component is connected to one first sliding component, and both clamping components are used to clamp the workpiece;

[0007] The first driving unit is used to drive the two first sliding members to move relative to the rotating frame in a direction that is closer to or further away from each other.

[0008] In an optional embodiment, the rotating frame includes a rotating tube and two rotating arms; the two rotating arms are respectively connected to both ends of the rotating tube, and both rotating arms are rotatably connected to the frame; both first sliding members are slidably connected to the rotating tube.

[0009] Each rotating arm is detachably connected to at least one counterweight; the rotating tubes and counterweights are distributed at intervals or symmetrically around the rotation axis of the rotating arm.

[0010] In an optional embodiment, the rotating tube is provided with a first sliding groove along a first preset direction; the first driving unit includes a first lead screw, a first driving motor, two first lead screw nuts, and two first transmission blocks;

[0011] The first lead screw is rotatably disposed inside the rotating tube and extends along the first preset direction; the first drive motor is connected to the rotating tube and is connected to the first lead screw in a transmission connection; the first lead screw is configured with a first threaded section and a second threaded section with opposite thread directions, and two first lead screw nuts respectively cooperate with the first threaded section and the second threaded section.

[0012] Each first transmission block is connected to a first lead screw nut, and each first transmission block is slidably connected to a first slide groove and is connected to a first sliding member for transmission.

[0013] In an optional embodiment, the first sliding member includes a first sliding sleeve and a first adjustment unit disposed at both ends of the first sliding sleeve;

[0014] The first sliding sleeve is fitted onto the rotating tube;

[0015] The first adjustment unit includes a first adjustment platform, a first adjustment nut, a first adjustment wedge block, and a second adjustment wedge block;

[0016] The first adjusting platform is connected to the outside of the first sliding sleeve, and the first adjusting nut is threadedly connected to the first adjusting platform; the first adjusting wedge is connected to the inner side of the first sliding sleeve; the second adjusting wedge is connected to the first adjusting nut, and at least a portion of the second adjusting wedge extends between the first adjusting wedge and the rotating tube.

[0017] The surface where the first adjusting ramp and the second adjusting ramp contact each other is the first inclined surface.

[0018] In an optional embodiment, each clamping assembly includes a sliding tube, a second driving unit, two second sliders, and two clamping units;

[0019] The sliding tube extends along a second preset direction and is connected to the corresponding first sliding member; the second driving unit is connected to the sliding tube; both second sliding members are slidably connected to the sliding tube along the second preset direction.

[0020] Each clamping unit is connected to a corresponding second slider, and the clamping unit is used to clamp the workpiece;

[0021] The second driving unit is connected to the two second sliding members and is used to drive the two second sliding members to move closer to each other or further away from each other; the first preset direction is perpendicular to the second preset direction.

[0022] In an optional embodiment, the clamping unit includes a placement platform and at least one locking clamp.

[0023] The placement table is connected to the second sliding member and is used to place the workpiece; the locking clamp is connected to the placement table and is used to clamp the workpiece placed on the placement table.

[0024] In an optional embodiment, the placement platform is configured with at least two positioning platforms for supporting the workpiece, the two positioning platforms are arranged at an angle and the adjacent ends of the two positioning platforms are spaced apart; the placement platform is provided with a clearance notch at the space corresponding to the adjacent ends of the two positioning platforms.

[0025] In an optional embodiment, the second sliding member includes a second sliding sleeve and a second adjustment unit disposed at both ends of the second sliding sleeve;

[0026] The second sliding sleeve is fitted onto the sliding tube;

[0027] The second adjustment unit includes a second adjustment platform, a second adjustment nut, a third adjustment wedge, and a fourth adjustment wedge; the second adjustment platform is connected to the outside of the second sliding sleeve, and the second adjustment nut is threadedly connected to the second adjustment platform; the third adjustment wedge is connected to the inner side of the second sliding sleeve, and the fourth adjustment wedge is connected to the second adjustment nut, with at least a portion of the fourth adjustment wedge extending between the third adjustment wedge and the sliding tube.

[0028] The surface where the third and fourth adjusting blocks contact each other is the second inclined surface.

[0029] In an optional embodiment, the sliding tube is provided with a second sliding groove along a second preset direction; the second drive unit includes a second lead screw, a second drive motor, two second lead screw nuts, and two second transmission blocks;

[0030] The second lead screw is rotatably disposed inside the sliding tube and extends along the second preset direction; the second drive motor is connected to the sliding tube and is drivenly connected to the second lead screw.

[0031] The second lead screw is equipped with a third thread section and a fourth thread section with opposite thread directions, and the two second lead screw nuts are respectively engaged with the third thread section and the fourth thread section;

[0032] Each second transmission block is connected to a second lead screw nut, and each second transmission block is slidably connected to a second slide groove and is connected to a second sliding member for transmission.

[0033] In an optional embodiment, the welding positioner further includes a first adjusting handwheel and two second adjusting handwheels;

[0034] The first adjusting handwheel is connected to the first lead screw, and the first drive unit and the first adjusting handwheel are distributed at opposite ends of the rotating tube; the two second adjusting handwheels are distributed at both ends of the sliding tube and are connected to the second lead screw.

[0035] In an optional embodiment, the welding positioner further includes a first limiting unit and a second limiting unit;

[0036] The first limiting unit is used to limit the sliding of the two first sliding members relative to the rotating tube; the second limiting unit is used to limit the sliding of the two second sliding members relative to the sliding tube.

[0037] In an optional embodiment, the first limiting unit includes a first limiting sleeve, a first limiting handle, a first limiting screw, and a first locking sleeve; the first limiting sleeve is placed inside the rotating tube and sleeved on the first lead screw; the first limiting screw is rotatably connected to the first limiting sleeve and connected to the first limiting handle located outside the rotating tube; the first locking sleeve is slidably connected to the first limiting sleeve and threadedly connected to the first limiting screw; wherein, the first limiting handle is used to drive the first limiting screw to rotate inside the first limiting sleeve under the action of external force, thereby driving the first locking sleeve to abut against the first lead screw, thereby limiting the rotation of the first lead screw;

[0038] The second limiting unit includes a second limiting sleeve, a second limiting handle, a second limiting screw, and a second locking sleeve. The second limiting sleeve is placed inside the sliding tube and sleeved on the second lead screw. The second limiting screw is rotatably connected to the second limiting sleeve and connected to the second limiting handle located outside the sliding tube. The second locking sleeve is slidably connected to the second limiting sleeve and threadedly connected to the second limiting screw. The second limiting handle is used to drive the second limiting screw to rotate inside the second limiting sleeve under the action of external force, thereby driving the second locking sleeve to abut against the second lead screw, thus limiting the rotation of the second lead screw.

[0039] In an optional embodiment, the rotating tube has a first rotating connecting seat inside, the first lead screw is rotatably connected to the first rotating connecting seat, and the first threaded section and the second threaded section are distributed on both sides of the first rotating connecting seat.

[0040] The sliding tube has a second rotating connecting seat inside, the second lead screw is rotatably connected to the second rotating connecting seat, and the third threaded section and the fourth threaded section are distributed on both sides of the second rotating connecting seat.

[0041] Secondly, this utility model provides a welding device, which includes a welding arm and the aforementioned welding positioner;

[0042] The welding positioner is used to clamp the workpiece and move the workpiece to change position; the welding arm is used to move relative to the welding positioner to weld the workpiece clamped by the welding positioner.

[0043] In an optional embodiment, the welding equipment further includes a transfer machine for conveying workpieces to and / or removing workpieces from the welding positioner.

[0044] The beneficial effects of the welding positioner and welding equipment provided in this embodiment of the utility model include:

[0045] The welding positioner includes a frame, a rotating frame, a first sliding component assembly, and two clamping assemblies. The rotating frame is rotatably connected to the frame, and its rotation axis relative to the frame is parallel to a first preset direction. The first sliding component assembly includes a first drive unit and at least two first sliding components. The first drive unit is connected to the rotating frame, and both first sliding components are slidably connected to the rotating frame along the first preset direction and are both drive-connected to the first drive unit. Each clamping assembly is connected to one first sliding component, and both clamping assemblies are used to clamp workpieces. The first drive unit drives the two first sliding components to move relative to the rotating frame in directions that bring them closer to or further away from each other. This welding positioner is flexible in operation and easy to use. It can meet the installation requirements of workpieces with different structural dimensions and can adjust the position of the installed workpiece by flipping it, thereby improving versatility, adapting to different types of welding needs, improving welding efficiency, and ultimately improving welding quality and reducing welding costs. Attached Figure Description

[0046] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0047] Figure 1 This is a structural schematic diagram of the welding positioner from a first-view perspective provided in this embodiment;

[0048] Figure 2 This is a structural schematic diagram of the welding positioner from a second perspective provided in this embodiment;

[0049] Figure 3 The welding positioner provided in this embodiment is along Figure 2 Sectional view along the AA direction;

[0050] Figure 4 The welding positioner provided in this embodiment is along Figure 2 Sectional view along the BB direction;

[0051] Figure 5 This is a schematic diagram of the structure of the rotating frame, the first sliding component assembly, and the clamping assembly provided in this embodiment;

[0052] Figure 6 This is a cross-sectional view of the rotating tube and rotating arm provided in this embodiment;

[0053] Figure 7 This is a cross-sectional view of the rotating tube, the first lead screw, and the first sliding member provided in this embodiment;

[0054] Figure 8 This is a cross-sectional view of the rotating tube, the first lead screw, the first sliding member, and the first adjusting unit provided in this embodiment;

[0055] Figure 9 for Figure 8 A magnified view of a section at point E in the middle;

[0056] Figure 10 This is a cross-sectional view of the sliding tube, the second driving unit, and the second sliding member provided in this embodiment;

[0057] Figure 11 for Figure 10 A magnified view of a section at point F in the middle;

[0058] Figure 12 for Figure 10 A magnified view of a section at point G in the middle;

[0059] Figure 13 This is a schematic diagram of the structure of the sliding tube and the second sliding member provided in this embodiment;

[0060] Figure 14 This is a schematic diagram of the structure of the first limiting unit provided in this embodiment;

[0061] Figure 15 This is a schematic diagram of the structure of the second limiting unit provided in this embodiment.

[0062] Icons: 100-Welding positioner; 110-Frame; 111-Base; 112-Column; 120-Rotating frame; 130-First sliding component assembly; 140-Clamping assembly; 20-Workpiece; 131-First drive unit; 132-First sliding component; 121-Rotating tube; 122-Rotating arm; 123-Counterweight; 124-First slide rail; 1311-First lead screw; 1312-First drive motor; 1313-First lead screw nut; 1314-The... 1. Transmission block; 1315 - First threaded section; 1316 - Second threaded section; 1321 - First sliding sleeve; 1322 - First adjusting unit; 1323 - First adjusting platform; 1324 - First adjusting nut; 1325 - First adjusting wedge; 1326 - Second adjusting wedge; 1327 - First inclined surface; 141 - Sliding tube; 142 - Second driving unit; 143 - Second sliding component; 144 - Clamping unit; 1441 - Placement platform; 1442 - Locking clamp; 1443 - Positioning table; 1444 - Clearance notch; 1431 - Second sliding sleeve; 1432 - Second adjusting unit; 1433 - Second adjusting platform; 1434 - Second adjusting nut; 1435 - Third adjusting wedge; 1436 - Fourth adjusting wedge; 1437 - Second inclined surface; 1411 - Second sliding groove; 1421 - Second lead screw; 1422 - Second drive motor; 1423 - Second lead screw nut; 1424 - Second transmission block; 1425 - Third threaded section ; 1426 - Fourth threaded section; 150 - First adjusting handwheel; 160 - Second adjusting handwheel; 170 - First limiting unit; 180 - Second limiting unit; 171 - First limiting sleeve; 172 - First limiting handle; 173 - First limiting screw; 174 - First locking sleeve; 181 - Second limiting sleeve; 182 - Second limiting handle; 183 - Second limiting screw; 184 - Second locking sleeve; 125 - First rotating connecting seat; 145 - Second rotating connecting seat. Detailed Implementation

[0063] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0064] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0065] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0066] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0067] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0068] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0069] Please refer to Figures 1-5 This embodiment provides a welding positioner 100, which includes a frame 110, a rotating frame 120, a first sliding component assembly 130, and two clamping assemblies 140.

[0070] The rotating frame 120 is rotatably connected to the frame 110, and the rotation axis of the rotating frame 120 relative to the frame 110 is perpendicular to a first preset direction (e.g., Figure 2 and Figure 3 Parallel to the direction indicated by the middle arrow C; the first sliding component assembly 130 includes a first driving unit 131 and at least two first sliding components 132. The first driving unit 131 is connected to the rotating frame 120, and the two first sliding components 132 are slidably connected to the rotating frame 120 along a first preset direction and are both connected to the first driving unit 131 in a transmission manner; each clamping component 140 is connected to one first sliding component 132, and both clamping components 140 are used to clamp the workpiece 20;

[0071] The first driving unit 131 is used to drive the two first sliding members 132 to move relative to the rotating frame 120 in a direction that is closer to or further away from each other.

[0072] It should be noted that this embodiment is based on the application of the welding positioner 100 to single-sided or double-sided welding of frame components. In other embodiments of this utility model, the welding positioner 100 can also be applied to the welding needs of other types of components. For example, taking a frame component composed of four strip components, the four strip components need to be arranged in parallel pairs, with the ends of adjacent strip components abutting each other. The welding position is the abutting point of the two adjacent strip components, which can also be understood as the corner of the assembled frame component. Moreover, the weld extends along the abutting point of the two adjacent strip components. Therefore, when configuring the clamping assembly 140, it is necessary to reserve corresponding operating space at the corner of the frame component to facilitate the corresponding welding work. Furthermore, the welding operating space meets the requirements of double-sided welding.

[0073] Please refer to Figures 1-5 The working principle of the welding positioner 100 is as follows:

[0074] Taking the welding of frame-like components as an example, the welding positioner 100 includes a frame 110, a rotating frame 120, a first sliding component assembly 130, and two clamping assemblies 140. The rotating frame 120 is rotatably connected to the frame 110, and its rotation axis relative to the frame 110 is parallel to a first preset direction. The first sliding component assembly 130 includes a first driving unit 131 and at least two first sliding components 132. The first driving unit 131 is connected to the rotating frame 120, and both first sliding components 132 are slidably connected to the rotating frame 120 along the first preset direction and are both connected to the first driving unit 131. Each clamping assembly 140 is connected to one first sliding component 132, and both clamping assemblies 140 are used to clamp the workpiece 20.

[0075] Therefore, when welding frame-like components, the various sub-components (such as four strip components) that make up the frame component can be placed on the clamping assembly 140 for clamping. Moreover, during placement, the first driving unit 131 can drive the two first sliding members 132 to move relative to the rotating tube 121 in a first preset direction, thereby adjusting the two first sliding members 132 to a position suitable for clamping the frame component.

[0076] In addition, before clamping frame-like components or during the welding process, the position of the clamping assembly 140 on the rotating frame 120 or the position of the workpiece 20 clamped by the clamping assembly 140 can be adjusted by rotating the rotating frame 120 relative to the frame 110, thereby enabling the workpiece 20 to be welded on one or both sides.

[0077] Therefore, during use, the welding positioner 100 can drive the two first sliding members 132 to move relative to the rotating tube 121 along a first preset direction through the first drive unit 131, thereby adjusting the two first sliding members 132 to a position suitable for the clamping frame component. This can meet the installation requirements of workpieces 20 with different structural dimensions. Moreover, by adjusting the position of the rotating frame 120, the clamping position or welding position can be adjusted, thereby improving the operational flexibility and versatility of the welding positioner 100, adapting to different types of welding needs, improving welding efficiency, and thus improving welding quality and reducing welding costs.

[0078] It should be noted that, based on the above, when configuring the rack 110, the rack 110 adopts a structural arrangement including a base 111 and two columns 112. Both columns 112 are connected to the base 111, and the rotating frame 120 is rotatably connected to the two columns 112. Furthermore, a rotating motor can be configured to drive the rotating frame 120 to rotate relative to the rack. The drive structure of the rotating motor can adopt existing technology, which will not be elaborated here.

[0079] In addition, when configuring the frame 110, sufficient space must be provided for the rotation of the rotating frame 120. That is, the rotating frame 120 must be able to rotate 360° within the space when its position is adjusted. Therefore, when configuring the frame 110, the distance between the base 111, the rotating frame 120, and the clamping assembly 140 needs to be adjusted to avoid interference between the base 111 and the rotating frame 120. Furthermore, to improve the applicability of the welding positioner 100, the column 112 can be configured as a lifting structure, thereby making the distance between the rotating frame 120 and the base 111 adjustable. This allows for different usage requirements to be met by raising and lowering the column 112. The lifting column 112 can adopt a hydraulic or pneumatic cylinder structure, which will not be elaborated further here.

[0080] Further, please refer to Figures 1-6 In this embodiment, when configuring the rotating frame 120, the rotating frame 120 may include a rotating tube 121 and two rotating arms 122; the two rotating arms 122 are respectively connected to the two ends of the rotating tube 121, and both rotating arms 122 are rotatably connected to the frame 110; both first sliding members 132 are slidably connected to the rotating tube 121.

[0081] Each rotating arm 122 is detachably connected to at least one counterweight 123; the rotating tube 121 and the counterweight 123 are distributed at intervals or symmetrically around the rotation axis of the rotating arm 122.

[0082] Through the above structural arrangement, the structure of the rotating tube 121 is simplified, allowing for easy connection with the rotating arm 122. To improve the stability of the rotating frame 120 during rotation, a counterweight 123 is provided on each rotating arm 122 to enhance operational stability. The counterweight 123 is detachably connected, allowing for the installation of counterweights of different weights to accommodate the processing requirements of workpieces 20 of varying weights. Furthermore, the rotating tube 121 and counterweight 123 are arranged symmetrically with respect to the axis of the rotating arm 122, and are spaced apart from each other relative to the axis of the rotating arm 122. This arrangement ensures that the welding height of the workpiece 20 before and after the rotating frame 120 is flipped during welding, thereby improving welding efficiency.

[0083] Further, please refer to Figures 1-9 In this embodiment, the rotating tube 121 is configured as a hollow tube. The rotating tube 121 can be a round tube or a square tube. This embodiment uses a square tube as an example. The rotating tube 121 is provided with a first groove 124 along a first preset direction. The first groove 124 is located on one side of the rotating tube 121. In order to avoid interference between the first groove 124 and other structures, this embodiment arranges the first groove 124 on the side of the rotating tube 121 away from the counterweight 123.

[0084] Corresponding to the arrangement of the first slide 124, when configuring the first drive unit 131, the first drive unit 131 includes a first lead screw 1311, a first drive motor 1312, two first lead screw nuts 1313, and two first transmission blocks 1314.

[0085] The first lead screw 1311 is rotatably disposed inside the rotating tube 121 and extends along a first preset direction; the first drive motor 1312 is connected to the rotating tube 121 and is drivenly connected to the first lead screw 1311; the first lead screw 1311 is provided with a first threaded section 1315 and a second threaded section 1316 with opposite thread directions, and two first lead screw nuts 1313 respectively cooperate with the first threaded section 1315 and the second threaded section 1316;

[0086] Each first transmission block 1314 is connected to a first lead screw nut 1313, and each first transmission block 1314 is slidably connected to the first slide groove 124 and is connected to a first sliding member 132 in a transmission connection.

[0087] It should be noted that when the first drive motor 1312 and the first lead screw 1311 are connected by a transmission connection structure, the transmission connection structure can be configured. The transmission connection structure can include one or more of the following structures: belt drive, gear drive, coupling and reducer. The specific structural principle is the same as the existing technology, so it will not be described in detail here.

[0088] Therefore, through the aforementioned structural arrangement of the first drive unit 131, the first lead screw 1311 can be built into the rotating tube 121, and the first drive motor 1312 can drive the first lead screw 1311 to rotate within the rotating tube 121. Furthermore, the first threaded section 1315 and the second threaded section 1316 on the first lead screw 1311, with opposite directions of rotation, are respectively fitted with two first lead screw nuts 1313. Each first transmission block 1314 is correspondingly connected to one first lead screw nut 1313, and each first transmission block 1314 is slidably connected to the first slide groove 124 and correspondingly connected to a first sliding member 132. Thus, through this arrangement, When the first drive motor 1312 drives the first lead screw 1311 to rotate, the first threaded section 1315 and the second threaded section 1316 rotate in opposite directions, causing the two first lead screw nuts 1313 to move in opposite directions, thus moving closer to or further away from each other. At this time, since the two first transmission blocks 1314 are slidably connected to the first slide groove 124, the first slide groove 124 can guide the two first transmission blocks 1314, so that after the first drive motor 1312 runs, it moves linearly relative to the first slide groove 124, thereby driving the two first sliding members 132 to move in opposite directions, thus moving closer to or further away from each other.

[0089] As the two first sliding members 132 move closer or further apart, the two clamping components 140 connected to the two first sliding members 132 can move closer or further apart, thereby adjusting the relative position of the two clamping components 140 so that they can adapt to the processing requirements of workpieces 20 of different types or different structural sizes.

[0090] During the operation of the first sliding member 132 relative to the rotating tube 121, since the cooperation between the two is a sliding fit, in order to adjust the fit clearance in case of wear or assembly clearance during long-term operation, and to improve its accuracy during operation, the first sliding member 132 includes a first sliding sleeve 1321 and a first adjustment unit 1322 disposed at both ends of the first sliding sleeve 1321. The assembly clearance of the first sliding sleeve 1321 can be adjusted by the first adjustment unit 1322. Specifically, the first sliding sleeve 1321 is sleeved on the rotating tube 121; and the first adjustment unit 1322 includes a first adjustment platform 1323, a first adjustment nut 1324, a first adjustment wedge 1325, and a second adjustment wedge 1326.

[0091] The first adjusting platform 1323 is connected to the outside of the first sliding sleeve 1321, and the first adjusting nut 1324 is threadedly connected to the first adjusting platform 1323; the first adjusting wedge 1325 is connected to the inner side of the first sliding sleeve 1321; the second adjusting wedge 1326 is connected to the first adjusting nut 1324, and at least a portion of the second adjusting wedge 1326 extends between the first adjusting wedge 1325 and the rotating tube 121.

[0092] The surface in contact between the first adjusting ramp 1325 and the second adjusting ramp 1326 is the first inclined surface 1327.

[0093] Therefore, since the contact surface between the first adjusting wedge 1325 and the second adjusting wedge 1326 is the first inclined surface 1327, the distance between the first sliding sleeve 1321 and the rotating tube 121 can be adjusted by adjusting the relative position of the first adjusting wedge 1325 and the second adjusting wedge 1326, thereby adjusting the gap. Specifically, this is achieved by rotating the first adjusting nut 1324, which moves the first adjusting nut 1324 relative to the first adjusting table 1323, thereby driving the second adjusting wedge 1326 connected to the first adjusting nut 1324. 6 moves relative to the first adjusting wedge 1325. During its movement, the first adjusting wedge 1325 and the second adjusting wedge 1326 can move relative to each other, thereby increasing or decreasing the thickness of the contact area between them, and thus changing the gap between the first sliding sleeve 1321 and the rotating tube 121. It should be noted that when connecting the first adjusting nut 1324 and the second adjusting wedge 1326, a strip groove or clearance fitting hole that mates with the first adjusting nut 1324 is provided on the second adjusting wedge 1326 to avoid jamming during the gap adjustment process.

[0094] It should be noted that since this embodiment adopts a square tube structure, the aforementioned first adjustment unit 1322 can be configured on all four sides of the first sliding sleeve 1321 to adjust the assembly gap between each side of the first sliding sleeve 1321 and the rotating tube 121.

[0095] Furthermore, based on the above structure, please refer to... Figures 10-13 and combined Figures 1-9 In this embodiment, when configuring the clamping components 140, since the two clamping components 140 are respectively connected to a first sliding member 132, the two can adopt the same structural setting method except for the connection position. Therefore, the following description will take the structural setting of one of the clamping components 140 as an example.

[0096] Specifically, each clamping assembly 140 includes a sliding tube 141, a second driving unit 142, two second sliding members 143, and two clamping units 144;

[0097] Sliding tube 141 along the second preset direction (e.g.) Figure 2 and Figure 4 The second drive unit 142 is connected to the sliding tube 141 in the direction indicated by the middle arrow D, and is connected to the corresponding first slider 132; the second drive unit 142 is connected to the sliding tube 141; both second sliders 143 are slidably connected to the sliding tube 141 along the second preset direction.

[0098] Each clamping unit 144 is connected to a corresponding second slider 143, and the clamping unit 144 is used to clamp the workpiece 20;

[0099] The second driving unit 142 is connected to the two second sliding members 143 and is used to drive the two second sliding members 143 to move closer to each other or further away from each other; the first preset direction is perpendicular to the second preset direction.

[0100] Therefore, with the above-described structural arrangement, the workpiece 20 can be clamped by the clamping unit 144. Before clamping, the second driving unit 142 can drive the two second sliding members 143 to move closer or further apart along the second preset direction, thereby adjusting the relative position between the two second sliding members 143. The direction of adjustment is the second preset direction. Therefore, this arrangement can work together with the first driving unit 131 and the two first sliding members 132 to adjust the position of the two clamping components 140 in the first preset direction and the position of the two clamping units 144 in the second preset direction. This allows for position adjustment in two directions within the spatial plane, thus adapting to the clamping requirements of workpieces 20 with different structural dimensions, thereby expanding its adaptability and improving the overall structural flexibility.

[0101] In order to improve the clamping stability of the workpiece 20 during the working process, the clamping unit 144 includes a placement platform 1441 and at least one locking clamp 1442.

[0102] The placement platform 1441 is connected to the second sliding member 143 and is used to place the workpiece 20; the locking clamp 1442 is connected to the placement platform 1441 and is used to clamp the workpiece 20 placed on the placement platform 1441.

[0103] It should be noted that the structure of the locking clamp 1442 can be pneumatic, hydraulic or elastic, and it can be operated by automatic clamping and automatic release or by manual clamping and manual release. Its purpose is to hold the workpiece 20 on the placement table 1441 to maintain its installation stability.

[0104] Furthermore, based on the above structure, this embodiment takes the processing of frame-type components as an example, and the frame-type components include four strip-shaped components. Thus, each clamping unit 144 can be provided with at least one locking clamp 1442, so that each of the four clamping units 144 can be used to clamp at least one strip-shaped component, thereby ensuring the clamping stability of the workpiece 20.

[0105] Furthermore, as can be seen from the above, this embodiment is illustrated by taking the single-sided or double-sided welding of the critical point of two components at the corner of a frame-like component as an example. Therefore, in order to improve the positioning accuracy and welding efficiency of the frame-like component, the placement platform 1441 is equipped with at least two positioning platforms 1443 for supporting the workpiece 20. The two positioning platforms 1443 are set at an angle, and this embodiment takes the two positioning platforms 1443 as perpendicular as an example. This allows the two positioning platforms 1443 on the placement platform 1441 of the same clamping unit 144 to support two adjacent strip components respectively. The adjacent ends of the two positioning platforms 1443 are spaced apart, and the placement platform 1441 is provided with a clearance notch 1444 at the space between the adjacent ends of the two positioning platforms 1443. In this way, the contact area of ​​the two adjacent strip components is opened, so as to avoid the clamping unit 144 from blocking the area to be welded or interfering with the welding mechanism when performing single-sided or double-sided welding.

[0106] Further, please refer to Figures 1-13In this embodiment, during the operation of the second sliding member 143 relative to the sliding tube 141, since the cooperation between the two is a sliding fit, in order to adjust the fit clearance in case of wear or assembly clearance due to long-term operation, thereby improving its accuracy during operation, the second sliding member 143 includes a second sliding sleeve 1431 and second adjustment units 1432 disposed at both ends of the second sliding sleeve 1431. The second adjustment units 1432 can adjust the assembly clearance of the second sliding sleeve 1431. Specifically, the second sliding sleeve 1431 is fitted with... The sliding tube 141 is connected to the second sliding sleeve 1431; the second adjustment unit 1432 includes a second adjustment platform 1433, a second adjustment nut 1434, a third adjustment wedge 1435, and a fourth adjustment wedge 1436; the second adjustment platform 1433 is connected to the outside of the second sliding sleeve 1431, and the second adjustment nut 1434 is threadedly connected to the second adjustment platform 1433; the third adjustment wedge 1435 is connected to the inner side of the second sliding sleeve 1431, and the fourth adjustment wedge 1436 is connected to the second adjustment nut 1434, and at least a portion of the fourth adjustment wedge 1436 extends between the third adjustment wedge 1435 and the sliding tube 141;

[0107] The surface where the third adjusting inclined block 1435 and the fourth adjusting inclined block 1436 contact is the second inclined surface 1437.

[0108] Therefore, since the contact surface between the third adjusting wedge 1435 and the fourth adjusting wedge 1436 is the second inclined surface 1437, the distance between the second sliding sleeve 1431 and the sliding tube 141 can be adjusted by adjusting the relative position of the third adjusting wedge 1435 and the fourth adjusting wedge 1436, thereby adjusting the gap. Specifically, this is achieved by rotating the second adjusting nut 1434, which moves the second adjusting nut 1434 relative to the second adjusting table 1433, thereby driving the fourth adjusting wedge 1435 connected to the second adjusting nut 1434. 436 moves relative to the third adjusting wedge 1435. During its movement, the third adjusting wedge 1435 and the fourth adjusting wedge 1436 can move relative to each other, thereby increasing or decreasing the thickness of the contact area between them, and thus changing the gap between the second sliding sleeve 1431 and the sliding tube 141. It should be noted that when connecting the third adjusting nut and the fourth adjusting wedge 1436, a slot or clearance fitting hole that mates with the second adjusting nut 1434 is provided on the fourth adjusting wedge 1436 to avoid jamming during the gap adjustment process.

[0109] It should be noted that since this embodiment adopts a square tube structure, the aforementioned second adjustment unit 1432 can be arranged on all four sides of the second sliding sleeve 1431 to adjust the assembly gap between each side of the second sliding sleeve 1431 and the sliding tube 141.

[0110] Further, please refer to Figures 1-13 In this embodiment, the sliding tube 141 is configured as a hollow tube. The sliding tube 141 can be a round tube or a square tube. This embodiment uses a square tube as an example. The sliding tube 141 is provided with a second groove 1411 along the second preset direction. The second groove 1411 is located on one side of the sliding tube 141. In order to avoid interference between the second groove 1411 and other structures, this embodiment arranges the second groove 1411 on the side of the sliding tube 141 facing the rotating tube 121.

[0111] Corresponding to the arrangement of the second slide 1411, a second drive unit 142 is configured, which includes a second lead screw 1421, a second drive motor 1422, two second lead screw nuts 1423, and two second transmission blocks 1424.

[0112] The second lead screw 1421 is rotatably disposed inside the sliding tube 141 and extends along the second preset direction; the second drive motor 1422 is connected to the sliding tube 141 and is connected to the second lead screw 1421 in a transmission manner.

[0113] The second lead screw 1421 is equipped with a third thread section 1425 and a fourth thread section 1426 with opposite thread directions, and two second lead screw nuts 1423 are respectively engaged with the third thread section 1425 and the fourth thread section 1426.

[0114] Each second transmission block 1424 is connected to a second lead screw nut 1423, and each second transmission block 1424 is slidably connected to the second slide groove 1411 and is connected to a second sliding member 143 in a transmission connection.

[0115] It should be noted that when the second drive motor 1422 and the second lead screw 1421 are connected by a transmission connection structure, the transmission connection structure can be configured. The transmission connection structure can include one or more of the following structures: belt drive, gear drive, coupling and reducer. The specific structural principle is the same as the existing technology, so it will not be described in detail here.

[0116] Therefore, through the aforementioned structural arrangement of the second drive unit 142, the second lead screw 1421 can be built into the sliding tube 141, and the second drive motor 1422 can drive the second lead screw 1421 to rotate within the sliding tube 141. Furthermore, the third thread segment 1425 and the fourth thread segment 1426 on the second lead screw 1421, with opposite rotation directions, are respectively fitted with two second lead screw nuts 1423. Each second transmission block 1424 is correspondingly connected to one second lead screw nut 1423, and each second transmission block 1424 is slidably connected to the second slide groove 1411 and correspondingly connected to a second sliding member 143. Thus, through this arrangement, it is possible to... When the second drive motor 1422 drives the second lead screw 1421 to rotate, the third threaded section 1425 and the fourth threaded section 1426 rotate in opposite directions, causing the two second lead screw nuts 1423 to move in opposite directions, thus moving closer to or further away from each other. At this time, since the two second transmission blocks 1424 are slidably connected to the second slide groove 1411, the second slide groove 1411 can guide the two second transmission blocks 1424, so that after the second drive motor 1422 runs, it moves linearly relative to the second slide groove 1411, thereby driving the two second sliding members 143 to move in opposite directions, thus moving closer to or further away from each other.

[0117] As the two second sliding members 143 move closer or further apart, the two clamping units 144 connected to the two second sliding members 143 can move closer or further apart, thereby adjusting the relative position of the two clamping units 144 so that they can adapt to the processing requirements of workpieces 20 of different types or different structural sizes.

[0118] Further, please refer to Figures 1-13 In this embodiment, in order to improve the convenience and flexibility of operation, in addition to setting the first drive motor 1312 and the second drive motor 1422 as drive motors and servo motors to improve control accuracy, in order to realize manual operation during use, the welding positioner 100 also includes a first adjustment handwheel 150 and two second adjustment handwheels 160.

[0119] The first adjusting handwheel 150 is connected to the first lead screw 1311, and the first driving unit 131 and the first adjusting handwheel 150 are distributed at opposite ends of the rotating tube 121; two second adjusting handwheels 160 are distributed at both ends of the sliding tube 141 and connected to the second lead screw 1421. Therefore, during use, the rotation of the first lead screw 1311 and the second lead screw 1421 can be adjusted using the first adjusting handwheel 150 and the second adjusting handwheel 160, thereby enabling manual driving of the clamping assembly 140 along a first preset direction and driving of the clamping unit 144 along a second preset direction, thus improving the flexibility and convenience of operation.

[0120] In addition, during the processing, to improve the consistency of batch processing and to prevent displacement or rotation of one or more of the first sliding member 132, the second sliding member 143, the first lead screw 1311, and the second lead screw 1421 during processing, which could cause changes in the position of the clamping unit 144 or the clamping assembly 140, thereby reducing processing accuracy and operational stability, the positions of the first sliding member 132 and the second sliding member 143 can be locked during processing. Please refer to [reference needed]. Figures 1-15 Specifically, the welding positioner 100 also includes a first limiting unit 170 for locking the first lead screw 1311 and a second limiting unit 180 for locking the second lead screw 1421.

[0121] Therefore, the first lead screw 1311 can be locked by the first limiting unit 170, so that the first limiting unit 170 can be used to restrict the sliding of the two first sliding members 132 relative to the rotating tube 121; similarly, the second lead screw 1421 can be locked by the second limiting unit 180, so that the second limiting unit 180 can be used to restrict the sliding of the two second sliding members 143 relative to the sliding tube 141.

[0122] Specifically, the first limiting unit 170 includes a first limiting sleeve 171, a first limiting handle 172, a first limiting screw 173, and a first locking sleeve 174. The first limiting sleeve 171 is placed inside the rotating tube 121 and sleeved on the first lead screw 1311. The first limiting screw 173 is rotatably connected to the first limiting sleeve 171 and connected to the first limiting handle 172 located outside the rotating tube 121. The first locking sleeve 174 is slidably connected to the first limiting sleeve 171 and threadedly connected to the first limiting screw 173. The first limiting handle 172 is used to drive the first limiting screw 173 to rotate inside the first limiting sleeve 171 under the action of external force, thereby driving the first locking sleeve 174 to abut against the first lead screw 1311, thus limiting the rotation of the first lead screw 1311.

[0123] The second limiting unit 180 includes a second limiting sleeve 181, a second limiting handle 182, a second limiting screw 183, and a second locking sleeve 184. The second limiting sleeve 181 is placed inside the sliding tube 141 and sleeved on the second lead screw 1421. The second limiting screw 183 is rotatably connected to the second limiting sleeve 181 and connected to the second limiting handle 182 located outside the sliding tube 141. The second locking sleeve 184 is slidably connected to the second limiting sleeve 181 and threadedly connected to the second limiting screw 183. The second limiting handle 182 is used to drive the second limiting screw 183 to rotate inside the second limiting sleeve 181 under the action of external force, thereby driving the second locking sleeve 184 to abut against the second lead screw 1421, thereby limiting the rotation of the second lead screw 1421.

[0124] Therefore, with the above-described structural configuration, during use, by operating the first limit handle 172, the first limit screw 173 can be rotated within the first limit sleeve 171, thereby causing the first locking sleeve 174 to abut against the first lead screw 1311, thus pressing the first lead screw 1311 and restricting its rotation, thereby achieving the purpose of locking the first lead screw 1311; similarly, by operating the second limit handle 182, the second limit screw 183 can be driven to the second limit sleeve 181. The first locking sleeve 181 rotates, thereby causing the second locking sleeve 184 to abut against the second lead screw 1421, thus pressing the two lead screws together and restricting the rotation of the second lead screw 1421, so as to achieve the purpose of locking the second lead screw 1421. It should be noted that, in this embodiment, elastic elements can also be provided in the first limiting sleeve 171 and the second limiting sleeve 181, so that the first locking sleeve 174 and the second locking sleeve 184 can disengage from the first lead screw 1311 and the second lead screw 1421 without being subjected to external force.

[0125] Furthermore, the number of the first locking sleeve 174 and the second locking sleeve 184 can be adjusted according to actual usage requirements. For example, in this embodiment, two first limit handles 172 and two second limit handles 182 are arranged, with each first limit handle 172 corresponding to drive the movement of two first locking sleeves 174, and each second limit handle 182 corresponding to drive the movement of two second locking sleeves 184.

[0126] Furthermore, based on the above structure, in order to improve the transmission stability and operational stability of the first lead screw 1311 and the second lead screw 1421, please refer to... Figures 1-15The rotating tube 121 has a first rotating connecting seat 125 inside, and the first lead screw 1311 is rotatably connected to the first rotating connecting seat 125. The first threaded section 1315 and the second threaded section 1316 are distributed on both sides of the first rotating connecting seat 125. The sliding tube 141 has a second rotating connecting seat 145 inside, and the second lead screw 1421 is rotatably connected to the second rotating connecting seat 145. The third threaded section 1425 and the fourth threaded section 1426 are distributed on both sides of the second rotating connecting seat 145.

[0127] Based on the above, please refer to Figures 1-15 This embodiment also provides a welding device, which includes a welding arm and the welding positioner 100 described above;

[0128] The welding positioner 100 is used to clamp the workpiece 20 and drive the workpiece 20 to change position; the welding arm is used to move relative to the welding positioner 100 to weld the workpiece 20 clamped by the welding positioner 100.

[0129] The welding equipment, by employing the aforementioned welding positioner 100, can meet the welding requirements of workpieces 20 with different structural dimensions. Furthermore, by adjusting the position of the rotating frame 120, it can adjust the clamping position or welding position, thereby improving the operational flexibility and versatility of the welding equipment, adapting to different types of welding requirements, increasing welding efficiency, and ultimately improving welding quality and reducing welding costs.

[0130] In addition to the above structure, the welding equipment also includes a transfer machine, which is used to transport the workpiece 20 to the welding positioner 100 and / or remove the workpiece 20 from the welding positioner 100, so as to realize automatic loading and unloading and thus improve work efficiency.

[0131] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A welding positioner, characterized in that: The welding positioner includes a frame, a rotating frame, a first sliding component assembly, and two clamping assemblies. The rotating frame is rotatably connected to the machine frame, and the rotation axis of the rotating frame relative to the machine frame is parallel to a first preset direction; the first sliding component assembly includes a first driving unit and at least two first sliding components, the first driving unit is connected to the rotating frame, and the two first sliding components are slidably connected to the rotating frame along the first preset direction and are both drively connected to the first driving unit; each clamping component is connected to one of the first sliding components, and both clamping components are used to clamp workpieces; The first driving unit is used to drive the two first sliding members to move relative to the rotating frame in a direction that is closer to or further away from each other.

2. The welding positioner according to claim 1, characterized in that: The rotating frame includes a rotating tube and two rotating arms; the two rotating arms are respectively connected to both ends of the rotating tube, and both rotating arms are rotatably connected to the frame; both first sliding members are slidably connected to the rotating tube. Each of the rotating arms is detachably connected to at least one counterweight; the rotating tubes and the counterweights are distributed at intervals or symmetrically around the rotation axis of the rotating arm.

3. The welding positioner according to claim 2, characterized in that: The rotating tube is provided with a first sliding groove along the first preset direction; the first driving unit includes a first lead screw, a first driving motor, two first lead screw nuts and two first transmission blocks; The first lead screw is rotatably disposed inside the rotating tube and extends along the first preset direction; the first drive motor is connected to the rotating tube and is drivenly connected to the first lead screw; the first lead screw is configured with a first threaded section and a second threaded section with opposite thread directions, and two first lead screw nuts respectively cooperate with the first threaded section and the second threaded section; Each of the first transmission blocks is connected to a first lead screw nut, and each of the first transmission blocks is slidably connected to the first slide groove and is connected to a first sliding member.

4. The welding positioner according to claim 3, characterized in that: The first sliding member includes a first sliding sleeve and a first adjustment unit disposed at both ends of the first sliding sleeve; The first sliding sleeve is fitted onto the rotating tube; The first adjustment unit includes a first adjustment platform, a first adjustment nut, a first adjustment wedge, and a second adjustment wedge; The first adjusting platform is connected to the outside of the first sliding sleeve, and the first adjusting nut is threadedly connected to the first adjusting platform; the first adjusting wedge is connected to the inner side of the first sliding sleeve. The second adjusting wedge is connected to the first adjusting nut, and at least a portion of the second adjusting wedge extends between the first adjusting wedge and the rotating tube; The surface in contact between the first adjusting ramp and the second adjusting ramp is the first inclined surface.

5. The welding positioner according to any one of claims 1-4, characterized in that: Each of the clamping assemblies includes a sliding tube, a second drive unit, two second sliders, and two clamping units; The sliding tube extends along a second preset direction and is connected to the corresponding first sliding member; the second driving unit is connected to the sliding tube; both second sliding members are slidably connected to the sliding tube along the second preset direction. Each of the clamping units is connected to one of the second sliding members, and the clamping unit is used to clamp the workpiece; The second driving unit is connected to the two second sliding members and is used to drive the two second sliding members to move closer to each other or further away from each other; the first preset direction is perpendicular to the second preset direction.

6. The welding positioner according to claim 5, characterized in that: The clamping unit includes a placement platform and at least one locking clamp; The placement platform is connected to the second sliding member and is used to place the workpiece; the locking clamp is connected to the placement platform and is used to clamp the workpiece placed on the placement platform. The placement platform is equipped with at least two positioning platforms for supporting the workpiece. The two positioning platforms are set at an angle and are spaced apart at their adjacent ends. The placement platform is provided with a clearance notch at the spaced-apart position corresponding to the adjacent ends of the two positioning platforms.

7. The welding positioner according to claim 5, characterized in that: The second sliding member includes a second sliding sleeve and a second adjustment unit disposed at both ends of the second sliding sleeve; The second sliding sleeve is fitted onto the sliding tube; The second adjustment unit includes a second adjustment platform, a second adjustment nut, a third adjustment wedge, and a fourth adjustment wedge; the second adjustment platform is connected to the outside of the second sliding sleeve, and the second adjustment nut is threadedly connected to the second adjustment platform; the third adjustment wedge is connected to the inner side of the second sliding sleeve, the fourth adjustment wedge is connected to the second adjustment nut, and at least a portion of the fourth adjustment wedge extends between the third adjustment wedge and the sliding tube; The surface in contact between the third adjusting block and the fourth adjusting block is the second inclined surface.

8. The welding positioner according to claim 5, characterized in that: The sliding tube is provided with a second sliding groove along the second preset direction; the second driving unit includes a second lead screw, a second driving motor, two second lead screw nuts, and two second transmission blocks. The second lead screw is rotatably disposed inside the sliding tube and extends along the second preset direction; the second drive motor is connected to the sliding tube and is drivenly connected to the second lead screw. The second lead screw is equipped with a third thread segment and a fourth thread segment with opposite thread directions, and the two second lead screw nuts respectively mate with the third thread segment and the fourth thread segment; Each of the second transmission blocks is connected to a corresponding second lead screw nut, and each of the second transmission blocks is slidably connected to the second slide groove and is connected to a corresponding second sliding member.

9. The welding positioner according to claim 8, characterized in that: The welding positioner also includes a first limiting unit and a second limiting unit; The first limiting unit is used to limit the sliding of the two first sliding members relative to the rotating tube; the second limiting unit is used to limit the sliding of the two second sliding members relative to the sliding tube. The first limiting unit includes a first limiting sleeve, a first limiting handle, a first limiting screw, and a first locking sleeve; the first limiting sleeve is placed inside the rotating tube and sleeved on the first lead screw; the first limiting screw is rotatably connected to the first limiting sleeve and connected to the first limiting handle located outside the rotating tube; the first locking sleeve is slidably connected to the first limiting sleeve and threadedly connected to the first limiting screw; wherein, the first limiting handle is used to drive the first limiting screw to rotate inside the first limiting sleeve under the action of external force, thereby driving the first locking sleeve to abut against the first lead screw, thereby limiting the rotation of the first lead screw; The second limiting unit includes a second limiting sleeve, a second limiting handle, a second limiting screw, and a second locking sleeve. The second limiting sleeve is placed inside the sliding tube and sleeved on the second lead screw. The second limiting screw is rotatably connected to the second limiting sleeve and connected to the second limiting handle located outside the sliding tube. The second locking sleeve is slidably connected to the second limiting sleeve and threadedly connected to the second limiting screw. The second limiting handle is used to drive the second limiting screw to rotate inside the second limiting sleeve under the action of external force, thereby driving the second locking sleeve to abut against the second lead screw, thus restricting the rotation of the second lead screw.

10. A welding device, characterized in that: The welding equipment includes a welding arm and a welding positioner as described in any one of claims 1-9; The welding positioner is used to clamp the workpiece and drive the workpiece to change position; the welding arm is used to move relative to the welding positioner to weld the workpiece clamped by the welding positioner.

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