Workpiece positioning system

Abstract

The invention provides a workpiece positioning system, relates to the technical field of equipment manufacturing positioning equipment, and aims to realize simultaneous positioning of two workpieces relative to a to-be-welded main body. The invention provides a workpiece positioning system which comprises a first sliding table, a first positioning device and a second positioning device. The first positioning device comprises a first support and a first positioning mechanism, the second positioning device comprises a second support and a second positioning mechanism, and the first support and the second support are both in sliding connection with the first sliding table; the first positioning mechanism is connected with the first support, and a first positioning part is formed on the first positioning mechanism and used for positioning a first workpiece; an angle is formed between the second positioning mechanism and the second support, a second positioning part is formed on the second positioning mechanism and used for positioning a second workpiece, a passing area is formed between the first positioning part and the second positioning part and used for passing of the welding body, and the first workpiece is perpendicular to the welding face of the welding body; the second workpiece and the welding face of the welding body form an included angle.

Description

Technical Field

[0001] This invention relates to the field of positioning equipment technology in equipment manufacturing, and in particular to a workpiece positioning system. Background Technology

[0002] In the automotive manufacturing and machining industries, beams and shafts, as key load-bearing components, typically require the welding of various supporting structural parts to achieve functional integration. Welding, a common method for connecting metal parts, directly impacts the strength and reliability of the overall structure. Currently, the industry commonly employs a segmented welding process, where the main beam or shaft is first fixed in a predetermined position using fixtures or positioning systems, and then specialized positioning devices are used to install the auxiliary structural parts to be welded one by one. This process requires corresponding positioning fixtures for supporting structural parts of different shapes and sizes. After welding a single type of structural part, the current positioning device must be disassembled and a positioning system adapted for the next type of workpiece must be reinstalled. Because the positioning references and clamping requirements of different structural parts vary, each change of positioning device requires recalibrating the positional accuracy, resulting in frequent tooling changes and debugging processes on the production line.

[0003] Therefore, there is an urgent need to provide a workpiece positioning system to address the problems existing in the prior art to some extent. Summary of the Invention

[0004] The purpose of this invention is to provide a workpiece positioning system that optimizes the structure of the workpiece positioning system to a certain extent and enables the simultaneous positioning of two workpieces relative to the welding body.

[0005] This invention provides a workpiece positioning system, comprising a first slide, a first positioning device, and a second positioning device. The first positioning device includes a first support and a first positioning mechanism, and the second positioning device includes a second support and a second positioning mechanism. Both the first support and the second support are slidably connected to the first slide. The first positioning mechanism is connected to the first support and has a first positioning part for positioning a first workpiece. The second positioning mechanism is angled to the second support and has a second positioning part for positioning a second workpiece. A passage area is formed between the first positioning part and the second positioning part for the passage of a welding body. The first workpiece is perpendicular to the welding surface of the welding body, and the second workpiece is at an angle to the welding surface of the welding body.

[0006] The first slide table includes a base and a slide rail, the first bracket includes a first support part and a first sliding part, the slide rail is laid on the base, the first sliding part cooperates with the slide rail, the first support part is disposed on the first sliding part, and the first positioning mechanism is disposed at the end of the first support part away from the first sliding part.

[0007] Specifically, the first positioning mechanism includes a first bearing block and a positioning block; the positioning block is fixedly mounted on the first support portion, and the positioning block is provided with a positioning post and a plurality of positioning holes formed around the positioning post; the first bearing block is rotatably connected to the positioning post; the first bearing block is formed with an alignment hole, which is aligned with different positioning holes; the first bearing block is set at different angles relative to the positioning block; the first bearing block is formed with a positioning protrusion for positioning the first workpiece.

[0008] Furthermore, the positioning protrusion has a circular protrusion structure, and the first bearing block has a plurality of mating holes formed around the positioning protrusion. A positioning pin is detachably installed in the mating hole to mate with the through hole on the first workpiece and assist in positioning the first workpiece.

[0009] Furthermore, the first positioning mechanism also includes a clamping assembly, which includes a first clamping drive and a first clamping block. The output end of the first clamping drive is connected to the first clamping block, and the first clamping drive is a rotary cylinder that can drive the first clamping block to rotate to the area covering the first support block or to the area detached from the first support block, so as to clamp or release the first workpiece.

[0010] The second bracket includes a second support part, a second sliding part, and an installation platform; the second sliding part cooperates with the slide rail, the second support part is disposed on the second sliding part, one end of the installation platform is rotatably connected to the second support part, and the installation platform is set at an angle relative to the second sliding part, and the second positioning mechanism is disposed on the installation platform.

[0011] Specifically, the second positioning mechanism includes a first position adjustment component, a second position adjustment component, and a bearing component; a first guide rail is laid on the mounting platform; the first position adjustment component includes a second slide and a first driving component; the output end of the first driving component is connected to the second slide; the second slide is slidably connected to the first guide rail; the second position adjustment component includes a positioning plate, a second guide rail, a second driving component, and a third slide; the positioning plate is vertically connected to the second slide; the second guide rail is laid on the positioning plate; the third slide is slidably connected to the second guide rail; the output end of the second driving component is connected to the third slide; and the bearing component is disposed on the third slide for bearing the second workpiece.

[0012] Furthermore, the bearing assembly includes a second bearing block, a second clamping drive, and a second clamping block; the second clamping drive is connected to the third slide, and the driving end of the second clamping drive is connected to the second clamping block; the second bearing block is disposed on the third slide, and the second bearing block has a hollowed-out waist hole, through which the second clamping block passes; and the second clamping drive can drive the second clamping block to move towards or away from the bearing surface of the second bearing block; multiple limiting posts are formed on the bearing surface of the second bearing block to cooperate with the through holes on the second workpiece and assist in positioning the second workpiece.

[0013] Furthermore, the second positioning mechanism also includes an anti-deformation component, which includes a telescopic drive, a connecting seat, a limiting block, a connecting shaft, and an abutment block. The telescopic drive is disposed on the third slide, with its telescopic end connected to the connecting seat. One end of the abutment block is rotatably connected to the connecting seat, one end of the limiting block is fixedly connected to the third slide, the connecting shaft is installed at the other end of the limiting block, and the abutment block is rotatably connected to the connecting shaft.

[0014] Furthermore, the second positioning mechanism also includes an angle adjustment component, one end of which is rotatably connected to the second sliding part, and the other end of which is rotatably connected to the end of the mounting platform away from the second support part. The angle adjustment component can extend or retract axially, so that the mounting platform rotates relative to the second support part.

[0015] Compared with existing technologies, the workpiece positioning system provided by this invention has the following advantages: The workpiece positioning system provided by the present invention includes a first slide, a first positioning device, and a second positioning device. The first positioning device includes a first support and a first positioning mechanism, and the second positioning device includes a second support and a second positioning mechanism. Both the first support and the second support are slidably connected to the first slide. The first positioning mechanism is connected to the first support and has a first positioning part for positioning a first workpiece. The second positioning mechanism is angled to the second support and has a second positioning part for positioning a second workpiece. A passage area is formed between the first positioning part and the second positioning part for the passage of the welding body. The first workpiece is perpendicular to the welding surface of the welding body, and the second workpiece is at an angle to the welding surface of the welding body.

[0016] The workpiece positioning system provided by this invention is mainly used for accurately positioning two workpieces with different spatial postures, namely the first workpiece and the second workpiece, relative to the welding body in a welding workstation.

[0017] The first slide in this application has a linear track section, which allows the first bracket and the second bracket to be slidably mounted on the first slide. The sliding of the first bracket and the second bracket can be driven by a telescopic drive structure, such as a hydraulic cylinder, a pneumatic cylinder, or an electric telescopic rod. Of course, the first bracket and the second bracket are each provided with a corresponding drive unit to achieve relatively independent movement, which makes it easy to determine the interval between the first bracket and the second bracket according to different welding bodies.

[0018] The spacing between the first and second supports allows the first and second positioning parts to be spatially separated by a certain distance, forming a passage zone between them. This passage zone allows the welding body to pass through, thereby enabling the first workpiece positioned by the first positioning mechanism and the second workpiece positioned by the second positioning mechanism to be located on the side of the welding body.

[0019] Accordingly, the second positioning mechanism provided in this application, which is angled to the second support, enables the second workpiece positioned by the second positioning mechanism to form a certain angle with the welding body.

[0020] Since not all workpieces welded on the welding body are perpendicular to the welding body, this application provides a positioning basis for workpieces that are angled to the welding body by setting a second positioning mechanism. Thus, the first positioning mechanism is used to achieve the positioning of workpieces perpendicular to the welding body, and the second positioning mechanism is used to position workpieces that are angled to the welding body. This allows for the simultaneous welding of two types of workpieces and also increases the range of workpieces that the overall positioning device can support and position.

[0021] It should be noted that the second positioning mechanism is set at an angle to the second support. An angled upright plate can be set on the second support, such as a right-angled triangle. By mounting the second positioning mechanism on the hypotenuse of the upright plate, the purpose of the second positioning mechanism being set at an angle can be achieved.

[0022] The second positioning mechanism provided in this application has a second positioning part formed on its upper part for accommodating and positioning the second workpiece. After the second workpiece is positioned, its surface to be welded forms a certain angle with the corresponding welding surface of the welding body. Of course, this angle is consistent with the angle between the inclined side and the right-angled side of the vertical plate mentioned above. Therefore, the tilt angle of the vertical plate can be selected according to specific needs to ensure that the angle between the second workpiece and the welding body meets the standard. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of the workpiece positioning system provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the anti-deformation component of the workpiece positioning system provided in an embodiment of the present invention.

[0025] In the figure: 1-First slide; 101-Base; 102-Slide rail; 2-First sliding part; 201-First support part; 3-Second sliding part; 4-Second support part; 5-Mounting platform; 6-First bearing block; 601-Positioning protrusion; 602-Positioning pin; 7-Positioning block; 8-First clamping drive; 9-Second slide; 10-First guide rail; 11-Positioning plate; 12-Second guide rail; 13-Third slide; 14-Second bearing block; 1401-Hollowed waist hole; 15-Second clamping block; 16-Limiting post; 17-Telescopic drive; 18-Connecting seat; 19-Limiting block; 20-Connecting shaft; 21-Abutting block; 22-Angle adjustment component. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0027] In the description of the embodiments of this application, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use. They are only for the convenience of describing the invention 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. Therefore, they should not be construed as limitations on the invention. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0029] In the description of the embodiments of this application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0030] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.

[0031] For ease of description, spatial relation terms such as “above,” “upper,” “below,” and “lower” may be used herein to describe the relationship between one element and another as shown in the accompanying drawings. Such spatial relation terms are intended to include not only the orientation depicted in the drawings but also the different orientations of the device during use or operation.

[0032] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0033] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.

[0034] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have various constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis that they can be implemented by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0035] like Figure 1 As shown, the present invention provides a workpiece positioning system, including a first slide table 1, a first positioning device, and a second positioning device; the first positioning device includes a first support and a first positioning mechanism, and the second positioning device includes a second support and a second positioning mechanism, both of which are slidably connected to the first slide table 1; the first positioning mechanism is connected to the first support and has a first positioning part for positioning a first workpiece; the second positioning mechanism is angled to the second support and has a second positioning part for positioning a second workpiece, and a passage area is formed between the first positioning part and the second positioning part for the passage of the welding body, the first workpiece is perpendicular to the welding surface of the welding body, and the second workpiece is at an angle to the welding surface of the welding body.

[0036] Compared with existing technologies, the workpiece positioning system provided by this invention has the following advantages: The workpiece positioning system provided by this invention is mainly used for accurately positioning two workpieces with different spatial postures, namely the first workpiece and the second workpiece, relative to the welding body in a welding workstation.

[0037] The first slide table 1 in this application has a linear track section, which allows the first bracket and the second bracket to be slidably mounted on the first slide table 1. The sliding of the first bracket and the second bracket can be driven by a telescopic drive structure, such as a hydraulic cylinder, a pneumatic cylinder, or an electric telescopic rod. Of course, the first bracket and the second bracket are respectively provided with corresponding drive units to achieve relatively independent movement, which makes it easy to determine the interval distance between the first bracket and the second bracket according to different welding bodies.

[0038] And such Figure 1 As shown, the spacing between the first and second supports allows the first and second positioning parts to be spatially separated by a certain distance, forming a passage zone between them. This passage zone allows the welding body to pass through, thereby enabling the first workpiece positioned by the first positioning mechanism and the second workpiece positioned by the second positioning mechanism to be located on the side of the welding body.

[0039] Accordingly, the second positioning mechanism provided in this application, which is angled to the second support, enables the second workpiece positioned by the second positioning mechanism to form a certain angle with the welding body.

[0040] Since not all workpieces welded on the welding body are perpendicular to the welding body, this application provides a positioning basis for workpieces that are angled to the welding body by setting a second positioning mechanism. Thus, the first positioning mechanism is used to achieve the positioning of workpieces perpendicular to the welding body, and the second positioning mechanism is used to position workpieces that are angled to the welding body. This allows for the simultaneous welding of two types of workpieces and also increases the range of workpieces that the overall positioning device can support and position.

[0041] It should be added here that, such as Figure 1 As shown, the second positioning mechanism is set at an angle to the second support. An angled upright plate can be set on the second support, such as a right-angled triangle structure. By mounting the second positioning mechanism on the hypotenuse of the upright plate, the purpose of the second positioning mechanism being set at an angle can be achieved.

[0042] The second positioning mechanism provided in this application has a second positioning part formed on its upper part for accommodating and positioning the second workpiece. After the second workpiece is positioned, its surface to be welded forms a certain angle with the corresponding welding surface of the welding body. Of course, this angle is consistent with the angle between the inclined side and the right-angled side of the vertical plate mentioned above. Therefore, the tilt angle of the vertical plate can be selected according to specific needs to ensure that the angle between the second workpiece and the welding body meets the standard.

[0043] Among them, such as Figure 1 As shown, the first slide table 1 includes a base 101 and a slide rail 102. The first bracket includes a first support part 201 and a first sliding part 2. The slide rail 102 is laid on the base 101. The first sliding part 2 cooperates with the slide rail 102. The first support part 201 is disposed on the first sliding part 2. The first positioning mechanism is disposed at the end of the first support part 201 away from the first sliding part 2.

[0044] The first slide 1 provided in this application includes an elongated base 101 and a slide rail 102 formed on the base 101. The base 101 can be fixed to the working platform by means of bolts or other structures, providing a stable foundation for the entire system, and the slide rail 102 can provide a foundation for the sliding of the first support and the second support.

[0045] The first bracket in this application includes a first sliding part 2 and a first support part 201. The first sliding part 2 is preferably a slider that matches the slide rail 102. It may be equipped with ball bearings or roller bearings to reduce the sliding friction between the first sliding part 2 and the slide rail 102 and improve the sliding accuracy.

[0046] The first support part 201 is a vertical plate structure, and to ensure the stability of the plate, a triangular support plate or other structure can be further provided, which will not be described in detail here.

[0047] The lower end of the first support part 201 can be fixedly connected to the first sliding part 2 by welding or other means. The first positioning mechanism can be fixed to the upper end of the first support part 201 by welding or fasteners such as bolts, that is, it is set at the end away from the first sliding part 2.

[0048] Of course, in an optional solution, a lifting structure can be further added to the first support 201, and the telescopic end of the lifting structure is connected to the first positioning mechanism, thereby changing the horizontal height of the first positioning mechanism to accommodate the positioning of more workpieces in positions different from the welding body. The lifting structure can use an automatic telescopic structure such as a cylinder or hydraulic cylinder to change the overall position of the first positioning mechanism, which will not be elaborated here.

[0049] Optionally, such as Figure 1 As shown, the first positioning mechanism includes a first bearing block 6 and a positioning block 7; the positioning block 7 is fixedly mounted on the first support 201, and the positioning block 7 is provided with a positioning post and a plurality of positioning holes formed around the positioning post. The first bearing block 6 is rotatably connected to the positioning post, and the first bearing block 6 is provided with an alignment hole, which is aligned with different positioning holes. The first bearing block 6 is set at different angles relative to the positioning block 7; the first bearing block 6 is provided with a positioning protrusion 601 for positioning the first workpiece.

[0050] In this application, the positioning block 7 can be fixedly installed on the top of the first support 201 by bolts. Positioning posts are provided at the edge of the positioning block 7. The positioning protrusion 601 formed on the bearing plate in this application is located at the center of the bearing plate. Therefore, the positioning posts need to be formed at the edge of the positioning plate 11 and avoid the position of the positioning protrusion 601. Correspondingly, the multiple positioning holes formed on the positioning block 7 also need to avoid the area covered by the projection of the positioning protrusion 601 on the positioning block 7. These positioning holes can be evenly distributed in a ring array, or non-uniformly distributed according to common angle requirements.

[0051] In this application, the first bearing block 6 and the positioning column can be connected by bearings or clearance fit, so that the first bearing block 6 can rotate freely in the horizontal plane around the axis of the positioning column.

[0052] The first bearing block 6 has an alignment hole. When the first bearing block 6 is rotated to the required angle, the alignment hole will align with one of the positioning holes on the positioning block 7. At this time, the positioning structure of the positioning pin 602 or bolt can be inserted through the alignment hole and into the positioning hole below, thereby fixing the angle between the first bearing block 6 and the positioning block 7, so that the first bearing block 6 is set at a specific and precise angle relative to the positioning block 7.

[0053] Since the center of the first workpiece, which is the primary positioning element in this application, has a circular hollow hole, the positioning protrusion 601 can be made into a ring shape to fit the hollow hole in the center of the first workpiece, thereby achieving radial positioning of the first workpiece. Furthermore, the first support block 6 in this application can be detachably connected to the positioning block 7. Therefore, the positioning protrusion 601 of different first support blocks 6 can be designed according to the different shapes of the hollow holes in the first workpiece, such as triangular, rectangular, or rhomboid shapes. Thus, through the cooperation of the irregularly shaped hole and the protrusion, circumferential positioning can be achieved.

[0054] Understandably, when production requirements change and the installation angle of the first workpiece to be welded to the main body changes, the operator only needs to pull out the locating pin 602, manually or with auxiliary tools gently rotate the first bearing block 6 to the new target angle, aligning the alignment hole with the corresponding locating hole, and then reinsert the locating pin 602 to complete the adjustment. The entire process does not require replacing the entire positioning mechanism or using complex tools, making the adjustment fast and efficient.

[0055] Since the position of the positioning hole is precisely machined in advance, the angle after each adjustment is very accurate and repeatable, which effectively ensures the welding accuracy and avoids welding quality problems caused by angle deviation.

[0056] Furthermore, such as Figure 1As shown, the positioning protrusion 601 has a circular protrusion structure. The first bearing block 6 has multiple mating holes around the positioning protrusion 601. A positioning pin 602 is detachably installed in the mating hole to mate with the through hole on the first workpiece and assist in positioning the first workpiece.

[0057] Preferably, the positioning protrusion 601 in this application is a circular protrusion structure. This circular protrusion structure cooperates with the circular hollow hole at the bottom of the first workpiece to form the main center positioning, which can quickly realize the centering and radial limiting of the first workpiece.

[0058] To further restrict the circumferential rotational freedom of the first workpiece after its initial positioning and achieve precise angular positioning, the first bearing block 6 has multiple mating holes formed around the annular positioning protrusion 601. These mating holes can be threaded holes or smooth holes, and they can be distributed symmetrically or at specific angles.

[0059] During positioning, the operator selects one or more corresponding mating holes based on the pre-set positions of the through holes on the first workpiece, and then inserts the positioning pin 602 into the through holes of the first workpiece and screws it in or further inserts it into the corresponding mating holes. In this way, the first workpiece can be completely constrained in both the radial and circumferential directions, achieving high-precision positioning.

[0060] The hierarchical positioning strategy, which uses the ring protrusion for initial positioning and the positioning pin 602 for precise positioning, can first use the positioning protrusion 601 to compensate for large initial position deviations, and then use the positioning pin 602 to achieve final precise circumferential positioning, thus ensuring that the positioning is both fast and accurate.

[0061] Furthermore, such as Figure 1 As shown, the first positioning mechanism also includes a clamping assembly, which includes a first clamping drive 8 and a first clamping block. The output end of the first clamping drive 8 is connected to the first clamping block, and the first clamping drive 8 is a rotary cylinder that can drive the first clamping block to rotate to the area covering the first bearing block 6 or to the area detached from the first bearing block 6, so as to clamp or release the first workpiece.

[0062] like Figure 1 As shown, to ensure the first workpiece remains absolutely stable during the welding process after positioning, the first positioning mechanism also includes a clamping assembly. The clamping assembly mainly includes a first clamping drive 8 and a first clamping block. The first clamping drive 8 is preferably a rotary cylinder. This rotary cylinder is fixed to the first support 201 by a mounting bracket.

[0063] The output end of the first clamping drive 8 is connected to the first clamping block. When it is necessary to clamp the first workpiece, the first clamping drive 8 first drives the first clamping block to perform a combined action of moving towards the first workpiece and rotating. That is, the first clamping block can rotate from an initial position away from and not covering the first workpiece to covering the first workpiece. During the rotation, the first clamping block simultaneously performs an action of moving towards the first workpiece, usually rotating 90° so that the first clamping block rotates from the initial position to the area covering the first bearing block 6, and finally clamps the upper surface of the first workpiece. At this time, the first clamping block is like a movable pressure plate, firmly fixing the first workpiece on the first bearing block 6, realizing axial limitation. Thus, through the above structure, the first workpiece can be limited in the radial, circumferential, and axial directions, ensuring positioning accuracy.

[0064] After welding is completed, the first clamping drive 8 reverses its action, the first clamping block moves away from the first workpiece, and at the same time rotates in the opposite direction to disengage from the area of ​​the first bearing block 6, thus completing one welding of the first workpiece and the welding body.

[0065] Understandably, by using a rotary cylinder to perform a combined motion of "straight descent + rotational clamping," the clamping block can be completely rotated to the side of the workpiece during release, achieving maximum avoidance and saving space and structural complexity.

[0066] Among them, such as Figure 1 As shown, the second bracket includes a second support part 4, a second sliding part 3, and a mounting platform 5; the second sliding part 3 cooperates with the slide rail 102, the second support part 4 is disposed on the second sliding part 3, one end of the mounting platform 5 is rotatably connected to the second support part 4, and the mounting platform 5 is set at an angle relative to the second sliding part 3, and the second positioning mechanism is disposed on the mounting platform 5.

[0067] The second sliding part 3 in this application has a similar structure to the first sliding part 2. It is a slider that cooperates with the slide rail 102 of the first slide table 1 to ensure that the entire second bracket can move smoothly on the first slide table 1.

[0068] The second support part 4 provided in this application consists of two triangular upright plates mounted on the upper surface of the second sliding part 3, providing a mounting base for the mounting platform 5, which is the base for mounting the second positioning mechanism. One end of the mounting platform 5 is rotatably connected to the top of the second support part 4 via a slewing bearing or hinge mechanism, thereby allowing the mounting platform 5 to adjust its angle around the axis.

[0069] It is through this rotating connection that the mounting platform 5 can be set at a specific, adjustable angle relative to the second sliding part 3. Since the second positioning mechanism is set on the mounting platform 5, the second workpiece positioned on the second positioning mechanism is ultimately set at an angle relative to the welding body, and this angle is the tilt angle of the mounting platform 5, that is, the plane where the second workpiece is located is parallel to the plane where the mounting platform 5 is located.

[0070] Specifically, the second positioning mechanism includes a first position adjustment component, a second position adjustment component, and a bearing component; a first guide rail 10 is laid on the mounting platform 5; the first position adjustment component includes a second slide 9 and a first driving component; the output end of the first driving component is connected to the second slide 9; the second slide 9 is slidably connected to the first guide rail 10; the second position adjustment component includes a positioning plate 11, a second guide rail 12, a second driving component, and a third slide 13; the positioning plate 11 is vertically connected to the second slide 9; the second guide rail 12 is laid on the positioning plate 11; the third slide 13 is slidably connected to the second guide rail 12; the output end of the second driving component is connected to the third slide 13; and the bearing component is set on the third slide 13 for bearing the second workpiece.

[0071] In order to achieve precise position adjustment of the second workpiece in multiple degrees of freedom and thus ensure that its welding position with the welding body reaches the optimal state, the second positioning mechanism mainly includes a first position adjustment component, a second position adjustment component, and a bearing component.

[0072] The first position adjustment component is mainly used to adjust the position of the second workpiece in the first horizontal direction. Since the first position adjustment component provided in this application includes a second slide table 9 and a first driving component, and the first driving component can be a lead screw mechanism or cylinder driven by a servo motor, the output end of the first driving component is connected to the second slide table 9. The bottom of the second slide table 9 is slidably engaged with the first guide rail 10, so that the second slide table 9 can slide relative to the first guide rail 10 by the extension and retraction of the first driving component, thereby driving the second workpiece to move closer to or further away from the welding body in the inclined direction.

[0073] The positioning plate 11, included in the second position adjustment component, is vertically fixed to the second slide table 9, providing a foundation for the laying of the second guide rail 12. Correspondingly, the third slide table 13 is slidably connected to the second guide rail 12, and the second driving component is fixed to the positioning plate 11, with its output end connected to the third slide table 13. Thus, the reciprocating motion of the third slide table 13 on the second guide rail 12 can be achieved through the extension and retraction of the second driving component, thereby further adjusting the position of the second workpiece in the direction perpendicular to the mounting platform 5, so that the second workpiece can more accurately fit with the welding surface of the welding body.

[0074] The support component is used to position the second workpiece. Since the support component is connected to the third slide 13, it can move with the third slide 13, thereby moving the positioned second workpiece to cooperate with the welding body.

[0075] By coordinating the first and second position adjustment components, the position of the second workpiece in space can be finely adjusted in at least two degrees of freedom. This adjustment capability is crucial for compensating for manufacturing tolerances of the welding body, fixture installation errors, and achieving optimal welding gaps.

[0076] Optionally, such as Figure 1 As shown, the supporting assembly includes a second supporting block 14, a second pressing drive, and a second pressing block 15. The second pressing drive is connected to a third slide 13, and the driving end of the second pressing drive is connected to the second pressing block 15. The second supporting block 14 is disposed on the third slide 13, and the second supporting block 14 has a hollowed-out waist hole 1401. The second pressing block 15 passes through the hollowed-out waist hole 1401, and the second pressing drive can drive the second pressing block 15 to move towards or away from the supporting surface of the second supporting block 14. A plurality of limiting posts 16 are formed on the supporting surface of the second supporting block 14 to cooperate with the through holes on the second workpiece and assist in positioning the second workpiece.

[0077] The support assembly in this application is a key component that directly contacts the second workpiece and completes the final positioning and clamping. It includes a second support block 14, a second clamping drive, and a second clamping block 15.

[0078] The cylinder part of the second clamping drive is fixedly installed on the third slide 13, and the second bearing block 14 is also fixedly installed on the third slide 13. The driving end of the second clamping drive is connected to the second clamping block 15.

[0079] The upper surface of the second support block 14 serves as a support surface for supporting the second workpiece. A perforated waist hole 1401 is designed on the second support block 14. This waist hole extends through the second support block 14 along its thickness direction, providing a movement channel for the second clamping block 15. The second clamping block 15 passes through the perforated waist hole 1401 from below. The second clamping drive in this application is also a rotary cylinder. When the second clamping drive is activated, it can drive the second clamping block 15 to perform synchronous vertical and rotational movements within the waist hole, moving towards or away from the support surface of the second support block 14.

[0080] The second clamping block 15 provided in this application has a strip-shaped structure. In the initial state, the second clamping block 15 is aligned with the direction of the hollow waist hole 1401 and is located away from the second bearing block 14. When it is necessary to clamp the second workpiece, the second clamping drive drives the second clamping block 15 to rotate. While rotating, it moves towards the direction of the second bearing block 14, thereby enabling the second clamping block 15 to be in a horizontal state, thus achieving the clamping of the second workpiece.

[0081] Preferably, a plurality of limiting posts 16 are formed on the bearing surface of the second bearing block 14, and the positions of these limiting posts 16 precisely correspond to the pre-set through holes at the bottom of the second workpiece. During loading, the second workpiece is fitted into these limiting posts 16 through its through holes, thereby achieving rapid and precise positioning in the horizontal plane.

[0082] It should be noted that the center of the second workpiece in this application also has a through hole, and the width of the through hole is less than the length of the second clamping block 15, so that the second workpiece can be clamped when the second clamping block 15 is rotated to the lateral position.

[0083] Furthermore, such as Figure 2 As shown, the second positioning mechanism also includes an anti-deformation component, which includes a telescopic drive 17, a connecting seat 18, a limiting block 19, a connecting shaft 20, and an abutment block 21. The telescopic drive 17 is mounted on the third slide 13. The telescopic end of the telescopic drive 17 is connected to the connecting seat 18. One end of the abutment block 21 is rotatably connected to the connecting seat 18. One end of the limiting block 19 is fixedly connected to the third slide 13. The connecting shaft 20 is mounted on the other end of the limiting block 19. The abutment block 21 is rotatably connected to the connecting shaft 20.

[0084] When welding a thin plate-type second workpiece or when the welding heat input is large, in order to prevent the workpiece from being locally deformed due to the positioning clamping force or welding thermal stress and to ensure the dimensional accuracy after welding, the second positioning mechanism provided in this application also includes an anti-deformation component. The anti-deformation component mainly includes a telescopic drive 17, a connecting seat 18, a limiting block 19, a connecting shaft 20, and an abutment block 21.

[0085] The telescopic drive 17 can use telescopic components such as cylinders. When the telescopic drive 17 is in the retraction process, the connecting seat 18 pulls the abutment block 21, causing the abutment block 21 to rotate around the connecting shaft 20, thereby causing its pressing end to swing downward and away from the easily deformable area of ​​the second workpiece, providing sufficient space for workpiece loading.

[0086] Once the second workpiece is positioned and clamped, the telescopic drive 17 extends, pushing the connecting seat 18 forward. The connecting seat 18 pushes the abutment block 21, causing it to rotate in the opposite direction around the connecting shaft 20. The clamping end moves towards the second workpiece, ultimately abutting tightly against the part of the second workpiece that needs to be protected from deformation.

[0087] By proactively providing an additional, stable auxiliary support point during the working process, the local rigidity of the workpiece near the welding point can be significantly increased, effectively resisting deformation problems such as warping and denting caused by clamping force and welding heat, and directly improving the dimensional quality and consistency of welded products.

[0088] Furthermore, the second positioning mechanism also includes an angle adjustment component 22. One end of the angle adjustment component 22 is rotatably connected to the second sliding part 3, and the other end is rotatably connected to the end of the mounting platform 5 away from the second support part 4. The angle adjustment component 22 can extend or retract axially, so that the mounting platform 5 rotates relative to the second support part 4.

[0089] The angle adjustment component 22 provided in this application is capable of extending or retracting axially, typically implemented as a servo electric cylinder or a locking hydraulic / pneumatic cylinder.

[0090] When the angle of the second workpiece needs to be adjusted, the angle adjustment component 22 is activated. If the angle adjustment component 22 extends, it will push the far end of the mounting platform 5. Since one end of the mounting platform 5 is rotatably connected to the second support part 4, when the angle adjustment component 22 extends, the mounting platform 5 will gradually rotate from the tilted state to the horizontal direction, thereby realizing the relative rotation of the second workpiece.

[0091] When the angle adjustment component 22 shortens, it will pull the far end of the mounting platform 5, causing the entire mounting platform 5 to gradually tilt, thereby adjusting the tilt angle of the second workpiece.

[0092] It should be noted that the angle adjustment component 22 in this application consists of two rods connected by a threaded connection. Tightening one of the rods increases or decreases the combined length of the two rods, thereby adjusting the angle of the mounting platform 5. Of course, the rod rotatably connected to the mounting platform 5 is detachably connected to it. When adjustment is needed, the rod is separated from the mounting platform 5, then tightened, and after adjustment, the rod is reconnected to the mounting platform 5.

[0093] The rod that is rotatably connected to the second sliding part 3 has a threaded rod, and a clear angle scale can be marked on the threaded rod. The more the threaded rod is exposed, the greater the tilt angle of the mounting platform 5. Therefore, by marking the angle scale on the threaded rod, such as 10°, 15°, and 20°, the angle of the mounting platform 5 can be accurately controlled, thereby achieving accurate adjustment of the angle.

[0094] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A workpiece positioning system, characterized in that, It includes a first slide, a first positioning device, and a second positioning device; The first positioning device includes a first bracket and a first positioning mechanism, and the second positioning device includes a second bracket and a second positioning mechanism. Both the first bracket and the second bracket are slidably connected to the first slide table. The first positioning mechanism is connected to the first bracket, and the first positioning mechanism has a first positioning part for positioning the first workpiece; The second positioning mechanism is angled to the second bracket, and the second positioning mechanism has a second positioning part for positioning the second workpiece. A passage area is formed between the first positioning part and the second positioning part for the passage of the welding body. The first workpiece is perpendicular to the welding surface of the welding body, and the second workpiece is at an angle to the welding surface of the welding body.

2. The workpiece positioning system according to claim 1, characterized in that, The first slide table includes a base and a slide rail. The first bracket includes a first support part and a first sliding part. The slide rail is laid on the base. The first sliding part cooperates with the slide rail. The first support part is disposed on the first sliding part. The first positioning mechanism is disposed at the end of the first support part away from the first sliding part.

3. The workpiece positioning system according to claim 2, characterized in that, The first positioning mechanism includes a first bearing block and a positioning block; The positioning block is fixedly mounted on the first support part. The positioning block is provided with a positioning post and a plurality of positioning holes formed around the positioning post. The first bearing block is rotatably connected to the positioning post. The first bearing block is formed with an alignment hole. The alignment hole is aligned with different positioning holes. The first bearing block is set at different angles relative to the positioning block. The first support block has a positioning protrusion for positioning the first workpiece.

4. The workpiece positioning system according to claim 3, characterized in that, The positioning protrusion has a circular protrusion structure. The first bearing block has multiple mating holes around the positioning protrusion. A positioning pin is detachably installed in the mating hole to mate with the through hole on the first workpiece and assist in positioning the first workpiece.

5. The workpiece positioning system according to claim 3, characterized in that, The first positioning mechanism further includes a clamping assembly, which includes a first clamping drive and a first clamping block. The output end of the first clamping drive is connected to the first clamping block, and the first clamping drive is a rotary cylinder that can drive the first clamping block to rotate to the area covering the first support block or to the area detached from the first support block, so as to clamp or release the first workpiece.

6. The workpiece positioning system according to claim 2, characterized in that, The second bracket includes a second support part, a second sliding part, and a mounting platform; The second sliding part cooperates with the slide rail, the second support part is disposed on the second sliding part, one end of the mounting platform is rotatably connected to the second support part, and the mounting platform is set at an angle relative to the second sliding part, and the second positioning mechanism is disposed on the mounting platform.

7. The workpiece positioning system according to claim 6, characterized in that, The second positioning mechanism includes a first position adjustment component, a second position adjustment component, and a support component; The installation platform is provided with a first guide rail. The first position adjustment component includes a second slide and a first drive component. The output end of the first drive component is connected to the second slide, and the second slide is slidably connected to the first guide rail. The second position adjustment assembly includes a positioning plate, a second guide rail, a second driving component, and a third slide. The positioning plate is vertically connected to the second slide, the second guide rail is laid on the positioning plate, the third slide is slidably connected to the second guide rail, the output end of the second driving component is connected to the third slide, and the bearing assembly is disposed on the third slide for bearing the second workpiece.

8. The workpiece positioning system according to claim 7, characterized in that, The bearing assembly includes a second bearing block, a second clamping drive, and a second clamping block; The second pressing drive is connected to the third slide, the driving end of the second pressing drive is connected to the second pressing block, the second bearing block is disposed on the third slide, and the second bearing block has a hollow waist hole, the second pressing block passes through the hollow waist hole, and the second pressing drive can drive the second pressing block to move towards or away from the bearing surface of the second bearing block; Multiple limiting posts are formed on the bearing surface of the second bearing block to cooperate with the through holes on the second workpiece and assist in positioning the second workpiece.

9. The workpiece positioning system according to claim 7, characterized in that, The second positioning mechanism further includes an anti-deformation component, which includes a telescopic drive, a connecting seat, a limiting block, a connecting shaft, and an abutment block. The telescopic drive is mounted on the third slide, the telescopic end of the telescopic drive is connected to the connecting seat, one end of the abutment block is rotatably connected to the connecting seat, one end of the limiting block is fixedly connected to the third slide, the connecting shaft is mounted on the other end of the limiting block, and the abutment block is rotatably connected to the connecting shaft.

10. The workpiece positioning system according to claim 6, characterized in that, The second positioning mechanism further includes an angle adjustment component. One end of the angle adjustment component is rotatably connected to the second sliding part, and the other end is rotatably connected to the end of the mounting platform away from the second support part. The angle adjustment component can extend or retract axially, so that the mounting platform rotates relative to the second support part.

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