Positioning mechanism and welding device

Abstract

The utility model discloses a positioning mechanism and a welding device, and relates to the technical field of vehicle body welding. The positioning mechanism comprises a first positioning assembly and a second positioning assembly, the first positioning assembly comprises a first clamping piece and a second clamping piece which are arranged in the first direction in a spaced mode, an adjusting station is formed between the first clamping piece and the second clamping piece, the first positioning assembly is used for assisting in fixing a workpiece, and the workpiece is in a movable state; the second positioning assembly is arranged corresponding to the adjusting station and comprises a moving part and a plurality of adjusting parts, the moving part drives the adjusting parts to move in the first direction, each adjusting part comprises a connecting end facing the adjusting station, and the connecting ends are used for being connected with a workpiece and driving the workpiece to move to a preset position. According to the positioning mechanism provided by the invention, the flexible collinear production requirement of multiple vehicle types can be met.

Description

Technical Field

[0001] This application relates to the technical field of body welding, and particularly to a positioning mechanism and a welding device. Background Art

[0002] Automobile welding production lines in related technologies are usually designed for specific vehicle models, and their production capacity and process layout are relatively fixed.

[0003] This traditional production method often requires large-scale equipment transformation and re-layout when facing vehicle model changes or production volume adjustments, which not only consumes a large amount of time and funds, but also affects the continuity and stability of production. Summary of the Utility Model

[0004] In view of this, this application provides a positioning mechanism and a welding device, aiming to solve one of the technical problems in the prior art.

[0005] To achieve the above object, the technical solution adopted in this application is as follows:

[0006] In a first aspect, an embodiment of this application provides a positioning mechanism, including:

[0007] A first positioning component, including a first clamping member and a second clamping member arranged at intervals along a first direction. An adjustment station is formed between the first clamping member and the second clamping member. The first positioning component is used to assist in fixing a workpiece, and the workpiece is in a movable state;

[0008] A second positioning component, arranged corresponding to the adjustment station. The second positioning component includes a moving member and a plurality of adjusting members. The moving member drives the plurality of adjusting members to move along the first direction. The adjusting member includes a connecting end facing the adjustment station. The connecting end is used to connect with the workpiece and drive the workpiece to move to a preset position.

[0009] In one of the embodiments of the first aspect, the first clamping member includes:

[0010] A column;

[0011] A first jaw, the first jaw includes a first sub-jaw and a second sub-jaw. The structures of the first sub-jaw and the second sub-jaw are symmetrical. The first sub-jaw includes a fixed part and a movable part. The fixed parts of the first sub-jaw and the second sub-jaw are respectively connected to the column;

[0012] A first driver, the first driver drives the movable parts of the first sub-jaw and the second sub-jaw to approach or move away from each other.

[0013] In one embodiment of the first aspect, the structures of the first clamping member and the second clamping member are symmetrical, and the first clamping member and the second clamping member are arranged facing each other.

[0014] In one embodiment of the first aspect, the moving member includes:

[0015] A sliding table, which is arranged along the first direction;

[0016] A first slider, which is slidably arranged on the sliding table and is connected to at least one of the adjusting members;

[0017] A second slider, which is slidably arranged on the sliding table and is connected to at least one of the adjusting members.

[0018] In one embodiment of the first aspect, the first slider and the second slider are independent of each other.

[0019] In one embodiment of the first aspect, the adjusting member includes:

[0020] A fixed rod, the connecting end of which is connected to the end of the fixed rod;

[0021] A first connecting seat, one end of the fixed rod is connected to the connecting end, and the other end is connected to the first connecting seat;

[0022] A second connecting seat and a second driver, the second driver is fixed to the end of the second connecting seat, and the first connecting seat is connected to the output end of the second driver.

[0023] In one embodiment of the first aspect, the adjusting member further includes:

[0024] A third driver, the end of the second connecting seat away from the second driver is hinged to the third driver, and the output end of the third driver is also connected to the second connecting seat.

[0025] In one embodiment of the first aspect, the positioning mechanism further includes a third positioning component, the third positioning component and the moving member are arranged at intervals along the second direction, the third positioning component includes at least two receiving members, and a plurality of the receiving members are arranged at intervals along the first direction, and the first direction and the second direction are perpendicular.

[0026] In one embodiment of the first aspect, the receiving member includes:

[0027] A mounting seat;

[0028] A fourth driver;

[0029] The second jaw, the fourth driver is fixed on the mounting seat, and the fourth driver drives the second jaw to move along a third direction, and the first direction, the second direction and the third direction are perpendicular to each other in pairs.

[0030] In a second aspect, an embodiment of the present application further provides a welding device, including the positioning mechanism in any of the above embodiments.

[0031] Compared with the prior art, the beneficial effects of the present application are as follows: The present application proposes a positioning mechanism, including a first positioning component and a second positioning component. The first positioning component includes a first clamping member and a second clamping member arranged at intervals along a first direction. An adjustment station is formed between the first clamping member and the second clamping member. The first positioning component is used to assist in fixing the workpiece, and the workpiece is in a movable state. The second positioning component is arranged corresponding to the adjustment station. The second positioning component includes a moving member and a plurality of adjusting members. The moving member drives the plurality of adjusting members to move along the first direction. The adjusting member includes a connecting end facing the adjustment station. The connecting end is used to connect with the workpiece and drive the workpiece to move to a preset position. By using the first positioning component, different models of workpieces are pre-fixed and pre-positioned, and then the moving member drives each adjusting member to move to the connection points of the workpiece, so that the connecting end is connected to each connection point of the workpiece, connecting the adjusting member to the workpiece. The connecting end also drives the workpiece to move to a preset position to adjust the posture of the workpiece, facilitating the subsequent clamping mechanism to clamp the workpiece and realizing the flexible co-line production requirements of multiple vehicle models. Description of the Drawings

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0033] Figure 1 Shows one of the structural schematic diagrams of the positioning mechanism in some embodiments of the present application;

[0034] Figure 2 Shows the structural schematic diagram of the first clamping member in some embodiments of the present application;

[0035] Figure 3 Shows the structural schematic diagram of the adjusting member in some embodiments of the present application;

[0036] Figure 4 Shows the structural schematic diagram of the receiving member in some embodiments of the present application.

[0037] Main element symbol description: 100 - positioning mechanism;

[0038] 110 - First positioning component; 111 - First clamping member; 112 - Second clamping member; 1111 - Column; 1112 - First jaw; 1113 - First driver; 11121 - First sub - jaw; 11122 - Second sub - jaw; 11123 - Fixed part; 11124 - Movable part;

[0039] 120 - Second positioning component; 121 - Movable part; 1211 - Slide; 1212 - First slider; 1213 - Second slider; 122 - Adjusting member; 1222 - Fixed rod; 1221 - Connecting end; 1223 - First connecting seat; 1224 - Second connecting seat; 1225 - Second driver; 1226 - Third driver;

[0040] 130 - Third positioning component; 131 - Receiving member; 1311 - Mounting seat; 1312 - Fourth driver; 1313 - Second jaw;

[0041] D1 - First direction; D2 - Second direction; D3 - Third direction; 140 - Workbench; 150 - Control module; P1 - Adjustment station. Detailed implementation mode

[0042] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and should not be construed as a limitation of the present application.

[0043] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present application.

[0044] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0045] In this application, unless otherwise clearly defined or limited, terms such as "installed", "connected", "linked", "fixed", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0046] In this application, unless otherwise clearly defined or limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0047] As Figure 1 shown, an embodiment of the present application provides a positioning mechanism 100, which is mainly used to position the front panel workpieces of different vehicle models, facilitating subsequent clamping mechanisms to clamp and move the workpieces.

[0048] The positioning mechanism 100 includes a first positioning component 110 and a second positioning component 120.

[0049] Among them, the first positioning component 110 is used to assist in fixing the workpiece, and the workpiece is in a movable state, facilitating subsequent adjustment of the posture of the workpiece by the second positioning component 120.

[0050] The first positioning component 110 includes a first clamping member 111 and a second clamping member 112 arranged at intervals along the first direction D1. An adjustment station P1 is formed between the first clamping member 111 and the second clamping member 112. By using the first positioning component 110, workpieces of different models are pre-fixed and pre-positioned.

[0051] The second positioning component 120 is arranged corresponding to the adjustment station P1. The second positioning component 120 includes a moving member 121 and a plurality of adjusting members 122. The moving member 121 drives the plurality of adjusting members 122 to move along the first direction D1. The adjusting member 122 includes a connecting end 1221 arranged towards the adjustment station P1. The connecting end 1221 is used to connect with the workpiece and drive the workpiece to move to a preset position. By using the moving member 121 to drive each adjusting member 122 to move to the connection points of the workpiece, the connecting end 1221 is connected to each connection point of the workpiece, connecting the adjusting member 122 with the workpiece. The connecting end 1221 also drives the workpiece to move to a preset position, adjusting the posture of the workpiece, facilitating the subsequent clamping mechanism to clamp the workpiece, and meeting the requirements of flexible co-line production for multiple vehicle models.

[0052] In some embodiments, the positioning mechanism 100 further includes a workbench 140, and both the first positioning component 110 and the second positioning component 120 are installed on the workbench 140.

[0053] It should be noted that the first direction D1 is the length direction of the workbench 140. Exemplarily, in Figure 1 it is the left-right direction; the second direction D2 is the width direction of the workbench 140. Exemplarily, in Figure 1 it is the front-back direction; the third direction D3 is the height direction of the workbench 140. Exemplarily, in Figure 1 it is the up-down direction. In other embodiments, the specific directions of the first direction D1, the second direction D2, and the third direction D3 should be adjusted adaptively, and the first direction D1, the second direction D2, and the third direction D3 are perpendicular to each other pairwise.

[0054] In some embodiments, as Figure 1 and Figure 2 shown, the first clamping member 111 includes a column 1111, a first jaw 1112, and a first driver 1113.

[0055] The first jaw 1112 includes a first sub-jaw 11121 and a second sub-jaw 11122. The structures of the first sub-jaw 11121 and the second sub-jaw 11122 are symmetrical. The first sub-jaw 11121 includes a fixed part 11123 and a movable part 11124. The fixed parts 11123 of the first sub-jaw 11121 and the second sub-jaw 11122 are respectively connected to the column 1111.

[0056] It should be understood that the clamping position of the fixed part 11123 on the column 1111 can be adjusted as required. For example, the height of the position where the clamping mechanism clamps the workpiece should be consistent with the height position of the fixed part 11123 on the column 1111.

[0057] The movable parts 11124 of the first sub-jaw 11121 and the second sub-jaw 11122 are arranged along the second direction D2. The movable parts 11124 are hinged between the fixed parts 11123, enabling the movable parts 11124 to rotate within a plane perpendicular to the third direction D3.

[0058] The first actuator 1113 drives the movable parts 11124 of the first sub-jaw 11121 and the second sub-jaw 11122 to approach or move away from each other, causing the clamp to be in a closed state or an open state.

[0059] The first actuator 1113 uses a thin cylinder, making the volume of the first jaw 1112 smaller, enabling it to cooperate with workpieces of more vehicle models and improving the adaptability.

[0060] The number of the first jaws 1112 is one or two.

[0061] When the number of the first jaws 1112 is one, the workpiece is longitudinally placed. The opening and closing of the movable parts 11124 of the first sub-jaw 11121 and the second sub-jaw 11122 play a role in clamping the workpiece. It should be understood that multiple first jaws 1112 can be arranged on the column 1111 to clamp the longitudinally placed workpiece, which can fix the workpiece more stably.

[0062] When the number of the first jaws 1112 is two, the workpiece is transversely placed. The two first jaws are connected to the column 1111 at intervals. By adjusting the distance between the first jaws 1112 and the second jaws 1313, the workpiece is clamped.

[0063] In some embodiments, as Figure 1 shown, the structures of the first clamping member 111 and the second clamping member 112 are symmetrical. The first clamping member 111 and the second clamping member 112 are arranged facing each other, which is convenient for synchronously adjusting the first clamping member 111 and the second clamping member 112, improving the adjustment efficiency of the first clamping member 111 and the second clamping member 112 for workpieces of different vehicle models, and simplifying the structure of the first positioning assembly 110.

[0064] In some embodiments, as Figure 1 shown, the positioning mechanism 100 further includes a control module 150. The control module 150 is connected to the column 1111 of the first clamping member 111. The control module 150 is used to jointly control the actuators in the positioning mechanism 100.

[0065] In some embodiments, as Figure 1 shown, the moving member 121 includes a slide table 1211, a first slider 1212, and a second slider 1213.

[0066] The sliding table 1211 is arranged along the first direction D1; the first slider 1212 is slidably arranged on the sliding table 1211 and connected to at least one adjusting member 122; the second slider 1213 is slidably arranged on the sliding table 1211 and connected to at least one adjusting member 122.

[0067] In this embodiment, the number of adjusting members 122 on the first slider 1212 is two, and the number of adjusting members 122 on the second slider 1213 is two.

[0068] It should be understood that the number of adjusting members 122 on the first slider 1212 has no relation with the number of adjusting members 122 on the second slider 1213. The number of adjusting members 122 on each slider can be set as required. For example, the number of adjusting members 122 on the first slider 1212 can be 1, 3, 4, 5, etc., not limited to the number in the example; the number of adjusting members 122 on the second slider 1213 can be 1, 3, 4, 5, etc., not limited to the number in the example.

[0069] The number of adjusting members 122 on each slider is related to the number of connection points on workpieces of different vehicle models. For example, if there are 5 connection points on the workpiece, 2 adjusting members 122 can be set on the first slider 1212 and 3 adjusting members 122 can be set on the second slider 1213.

[0070] In some embodiments, the first slider 1212 and the second slider 1213 are independent of each other. In this way, it enables the adjusting member 122 to connect workpieces of different vehicle models and better meets the requirements of flexible co-line production for multiple vehicle models.

[0071] Being independent of each other means that the first slider 1212 and the second slider 1213 are respectively driven by different motors, so that the moving modes of the first slider 1212 and the second slider 1213 on the sliding table 1211 are controlled separately.

[0072] In some embodiments, the adjusting member 122 includes a fixed rod 1222, a first connection seat 1223, a second connection seat 1224 and a second driver 1225.

[0073] When switching the front panel workpieces of different vehicle models, the workpiece has multiple connection points on the mating surface. The connection points are usually set as reference holes, and the sizes and positions of the reference holes of the front panel workpieces of different vehicle models are different.

[0074] The function of the connection end 1221 is to form a clamping connection with the workpiece after being inserted into the reference hole.

[0075] Exemplarily, as Figure 3 shown, the connection end 1221 is frustum-shaped, and its outer diameter gradually increases, which can form an interference fit with reference holes of different sizes to realize the clamping connection between the connection end 1221 and the workpiece.

[0076] As shown Figure 3 in the figure, the connecting end 1221 is connected to the end of the fixing rod 1222; one end of the fixing rod 1222 is connected to the connecting end 1221, and the other end is connected to the first connecting seat 1223.

[0077] The second connecting seat 1224 is strip-shaped, the second driver 1225 is fixed to the end of the second connecting seat 1224, and the first connecting seat 1223 is connected to the output end of the second driver 1225.

[0078] After the connecting end 1221 is clamped with the workpiece, the second driver 1225 drives the first connecting seat 1223 to move linearly, and the connecting end 1221 drives the workpiece to move to a preset position, changing the posture of the workpiece, which is convenient for the subsequent clamping mechanism to clamp the workpiece. It can also improve the space utilization rate of the adjustment station P1 by adjusting the workpiece posture, effectively solving the problem of the small area of the adjustment station P1.

[0079] In some embodiments, the adjusting member 122 further includes a third driver 1226.

[0080] In some embodiments, both the second driver 1225 and the third driver 1226 adopt air cylinders.

[0081] The end of the second connecting seat 1224 away from the second driver 1225 is hinged to the third driver 1226, and the output end of the third driver 1226 is also connected to the second connecting seat 1224.

[0082] Please refer to Figure 1 for reference. The third driver 1226 is fixed on the workbench 140, the output end of the third driver 1226 can move along the third direction D3, and the bottom end of the second connecting seat 1224 is hinged to the fixing part 11123 of the third driver 1226.

[0083] Refer to Figure 3 for reference again. When the output end of the third driver 1226 extends upward, the connecting end 1221 moves downward along an arc trajectory. When the output end of the third driver 1226 retracts downward, the connecting end 1221 moves upward along an arc trajectory. In this way, the connecting end 1221 drives the workpiece to move to a preset position, changing the posture of the workpiece, which is convenient for the subsequent clamping mechanism to clamp the workpiece.

[0084] In some embodiments, as Figure 1 shown in the figure, the positioning mechanism 100 further includes a third positioning component 130. The third positioning component 130 and the moving member 121 are arranged at intervals along the second direction D2. The third positioning component 130 includes at least two receiving members 131, and a plurality of receiving members 131 are arranged at intervals along the first direction D1. The third positioning component 130 is used to cooperate with the first positioning component 110 and the second positioning component 120 to position the workpiece.

[0085] In some embodiments, the receiving member 131 includes a mounting base 1311, a fourth driver 1312, and a second jaw 1313.

[0086] As Figure 1 and Figure 4 shown, the opening of the second jaw 1313 faces the adjustment station P1. The mounting base 1311 is fixed on the workbench 140, the fourth driver 1312 is fixed on the mounting base 1311, and the fourth driver 1312 drives the second jaw 1313 to move along the third direction D3.

[0087] The present application further provides a welding device, including the positioning mechanism 100 in any of the above embodiments. Therefore, it has all the beneficial effects of the positioning mechanism 100 in any of the above embodiments, and will not be described in detail herein.

[0088] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0089] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. A positioning mechanism, characterized in that: include: A first positioning assembly, comprising a first clamping member and a second clamping member spaced apart along a first direction, an adjustment station being formed between the first clamping member and the second clamping member, the first positioning assembly being used to assist in fixing a workpiece, and the workpiece being in a movable state; The second positioning component is arranged corresponding to the adjustment station. The second positioning component includes a moving part and multiple adjusting parts. The moving part drives the multiple adjusting parts to move along the first direction. The adjusting part includes a connecting end arranged toward the adjustment station. The connecting end is used to connect with the workpiece and drive the workpiece to move to a preset position.

2. The positioning mechanism according to claim 1, characterized in that: The first clamping member comprises: Column; A first clamping jaw, the first clamping jaw comprises a first sub-jaw and a second sub-jaw, the first sub-jaw and the second sub-jaw have symmetrical structures, the first sub-jaw comprises a fixed portion and a movable portion, the fixed portion of the first sub-jaw and the fixed portion of the second sub-jaw are respectively connected to the column; A first driver drives the movable portion of the first sub-jaw and the movable portion of the second sub-jaw to move toward or away from each other.

3. The positioning mechanism according to claim 2, characterized in that: The structures of the first clamping member and the second clamping member are symmetrical, and the first clamping member and the second clamping member are arranged facing each other.

4. The positioning mechanism according to claim 1, characterized in that: The moving part comprises: a slide, the slide being arranged along the first direction; a first slider, the first slider being slidably disposed on the slide platform and connected to at least one of the adjusting members; The second slider is slidably disposed on the slide platform and is connected to at least one of the adjusting members.

5. The positioning mechanism according to claim 4, characterized in that: The first slider and the second slider are independent of each other.

6. The positioning mechanism according to claim 5, characterized in that: The adjusting member comprises: A fixing rod, wherein the connecting end is connected to an end of the fixing rod; a first connecting seat, one end of the fixing rod being connected to the connecting end, and the other end being connected to the first connecting seat; A second connecting base and a second driver, wherein the second driver is fixed to an end of the second connecting base, and the first connecting base is connected to an output end of the second driver.

7. The positioning mechanism according to claim 6, characterized in that: The adjusting member also includes: The third driver, the end of the second connection seat away from the second driver is hinged to the third driver, and the output end of the third driver is also connected to the second connection seat.

8. The positioning mechanism according to any one of claims 1 to 7, characterized in that: The positioning mechanism also includes a third positioning component, the third positioning component and the moving member are spaced apart along the second direction, the third positioning component includes at least two receiving members, a plurality of the receiving members are spaced apart along the first direction, and the first direction is perpendicular to the second direction.

9. The positioning mechanism according to claim 8, characterized in that: The receiving member comprises: Mounting seat; Fourth Drive; The second clamping jaw, the fourth driver is fixed on the mounting seat, the fourth driver drives the second clamping jaw to move along a third direction, and the first direction, the second direction and the third direction are perpendicular to each other.

10. A welding device, characterized in that: The method comprises the positioning mechanism according to any one of claims 1 to 9.

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