Flexible box welding clamp

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By designing a welding fixture for a flexible box, the cross-set driving parts and jaws are used to achieve accurate alignment of the box edges, the problem of inaccurate positioning of the flexible box edges in the prior art is solved, and the welding accuracy and efficiency are improved.

CN222919917UActive Publication Date: 2025-05-30YANGZHOU JINYUAN ROBOTICS AUTOMATION

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Patent Information

Application Number: CN202421728745.5
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-07-19
Publication Date: 2025-05-30
Estimated Expiration: 2034-07-19

AI Technical Summary

Technical Problem

Existing welding fixtures are difficult to accurately locate the edges of the flexible box, resulting in inaccurate welding and reducing product processing accuracy and production efficiency.

Method used

A flexible box welding fixture is designed, including a frame, drive parts, jaws and carrier table. By driving the screw and slider movements by the cross-arranged driving members, the jaws can be tightened inward from multiple directions to ensure that the bottom edge of the side plate of the box is aligned with the edge of the bottom plate.

Benefits of technology

The fixture can significantly improve welding accuracy and efficiency, ensure the alignment of the edges of the flexible box, and reduce production costs.

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Figure CN222919917U_ABST

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Abstract

The utility model belongs to the technical field of welding fixtures, and particularly relates to a flexible box body welding fixture. The clamping device comprises a frame, two driving pieces, a clamping jaw and a bearing table. The driving pieces are arranged in a crossed mode with the center of the frame, each driving piece comprises a driving motor, a lead screw and two sliding blocks, and the driving motors are installed in the frame; one end of the screw rod is connected with the driving motor, the other end of the screw rod is rotatably connected with the frame, and the head and tail ends of the screw rod respectively form a first threaded section and a second threaded section; the two sliding blocks are in threaded connection with the first threaded section and the second threaded section on the lead screw respectively, and the sliding blocks are in sliding connection with the frame in the length direction of the lead screw; the clamping jaw is arranged on the sliding block and used for clamping the side face of the box body. The bearing table is installed on the portion, between the two oppositely-arranged sliding blocks, of the frame and used for bearing the bottom of the box body. The utility model is used for solving the problem of inaccurate butt joint of the edges of the flexible box body.

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Description

Technical Field

[0001] The utility model belongs to the technical field of welding jigs, and particularly relates to a flexible box body welding jig. Background Art

[0002] A welding jig is a jig used to ensure the size of a welded part, improve the assembly accuracy and efficiency, and prevent welding deformation.

[0003] For the processing of a box body, since most box bodies are hexahedrons, when welding a box body, a welding jig is usually required. For a conventional welding jig, manual operation is needed to hold the plate at the target position for positioning and then welding. For example, the side plate is placed around the bottom plate and then welded. However, when facing some flexible plates, it is difficult for the jig supporting the side plate surface to ensure that the bottom edge of the side plate is aligned with the edge of the bottom plate. This makes the positioning inaccurate each time, not only reducing the processing accuracy of the product, but also having low production efficiency and increasing the production cost. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a flexible box body welding jig for solving the problem of inaccurate edge docking of a flexible box body.

[0005] The technical solution for the utility model to solve the above technical problem is as follows: A flexible box body welding jig, which comprises:

[0006] A frame;

[0007] At least two driving members, the driving members are cross - arranged with the center of the frame, and the driving member includes:

[0008] A driving motor, the driving motor is installed in the frame;

[0009] A lead screw, one end of the lead screw is connected to the driving motor, and the other end is rotatably connected to the frame. The head and tail ends of the lead screw respectively form a first thread section and a second thread section with opposite helix directions;

[0010] Two sliders, the two sliders are respectively screwed on the first thread section and the second thread section of the lead screw, and the sliders are slidably connected to the frame along the length direction of the lead screw;

[0011] Claw jaws, arranged on the sliders for clamping the side of the box body;

[0012] A bearing platform, installed on the frame between the two relatively arranged sliders for supporting the bottom of the box body.

[0013] Compared with the prior art, the above technical solution has the following beneficial effects:

[0014] The bottom plate of the box body is placed on the bearing platform, and then the driving motor is used to drive the rotation of the lead screws with different rotation directions, which can drive the slider and the clamping jaws thereon to tighten inward or loosen outward. Moreover, through multiple driving members arranged in a cross manner, they can tighten inward from multiple directions. When tightening inward, the clamping jaws can drive the bottom edges of the box body side plates to align accurately with the edges of the box body bottom simultaneously, facilitating subsequent welding. The overall structure is simple and easy to operate, and can greatly improve the welding effect and welding accuracy.

[0015] On the basis of the above technical solution, the embodiment of the present application can also be improved as follows:

[0016] In one embodiment, the upper surface of the slider is not higher than the upper surface of the bearing platform, the clamping jaws are installed on the outer side edges of the slider, and the tops of the clamping jaws are higher than the upper surface of the bearing platform.

[0017] In one embodiment, a dovetail groove is formed on the outer side edge of the slider, and a dovetail bar matching the dovetail groove is provided on the clamping jaw.

[0018] In one embodiment, an avoidance notch is formed on the outer side edge of the slider where the clamping jaw is not installed.

[0019] In one embodiment, a connecting plate is connected to the bottom of the slider, a nut sleeve screwed onto the first thread section or the second thread section is provided on the connecting plate, and a reinforcing rib is provided between the connecting plate and the slider.

[0020] In one embodiment, a plurality of vacuum suction cups are installed on the bearing platform.

[0021] In one embodiment, the frame includes:

[0022] A central frame, the intersection of the driving members is located within the central frame;

[0023] A plurality of support frames, symmetrically installed outside the central frame, and the first thread section and the second thread section of the lead screw are respectively located in the support frames on both sides.

[0024] In one embodiment, the lead screw includes:

[0025] An intermediate shaft, the intermediate shaft is located in the central frame, and couplings are connected to both ends of the intermediate shaft;

[0026] A first shaft rod, one end of which is connected to the output end of the driving motor, and the other end passes through the central frame and is connected to the coupling, and the first thread section is arranged on the first shaft rod;

[0027] A second shaft rod, one end of which passes through the central frame and is connected to the coupling, and the other end is connected to the support frame through a bearing seat, and the second thread section is arranged on the second shaft rod.

[0028] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0029] 1. This fixture is suitable for welding boxes, with a simple structure and convenient use, and can ensure that the edges of flexible boxes are aligned.

[0030] 2. It is beneficial to reliably position and clamp boxes of different specifications and sizes during production processes such as machining and welding to ensure the welding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0033] Figure 2 It is Figure 1 an enlarged schematic diagram of part A in

[0034] Figure 3 It is Figure 1 a top view structural schematic diagram of the removal of the carrier table.

[0035] Reference numerals:

[0036] 1. Frame; 2. Driving member; 3. Claw; 4. Carrier table;

[0037] 101. Central frame; 102. Support frame;

[0038] 201. Driving motor; 202. Lead screw; 203. Slide block;

[0039] 2021. First shaft; 2022. Second shaft; 2023. Intermediate shaft;

[0040] 5. Dovetail groove; 6. Dovetail bar;

[0041] 7. Avoidance notch;

[0042] 8. Connecting plate; 9. Nut sleeve; 10. Reinforcing rib;

[0043] 11. Vacuum chuck;

[0044] 12. Coupling; 13. Bearing seat;

[0045] 14. Orbit Detailed implementation mode

[0046] The embodiments of the technical solution of the present utility model will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solution of the present utility model more clearly, so they are only examples and cannot be used to limit the protection scope of the present utility model.

[0047] It should be noted that unless otherwise specified, the technical terms or scientific terms used in this application should have the ordinary meaning understood by those skilled in the art to which the present utility model belongs.

[0048] In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model 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 therefore cannot be understood as a limitation to the present utility model.

[0049] In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. In the description of the present utility model, "a plurality" means more than two unless otherwise specifically defined.

[0050] In this application, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation", etc. should 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 elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0051] As Figures 1-3 shown, a flexible box welding fixture provided by the present utility model includes: a frame, two driving members, a plurality of clamping jaws and a bearing table, and the bearing table is arranged at the center position of the frame.

[0052] The number of driving members can be set corresponding to the shape of the box. For example, if the box has six sides, the corresponding driving members can be set to three, and one driving member is used to clamp and fix two opposite sides.

[0053] In this embodiment, two driving members are provided, and the two driving members are arranged to cross at the center of the frame. Specifically, the driving member includes: a driving motor, a lead screw and two sliders.

[0054] The driving motor is installed in the frame. One end of the lead screw is connected to the driving motor, and the other end is rotatably connected to the frame. The first and second thread segments with opposite helix directions are formed at the head and tail ends of the lead screw respectively. The two lead screws are cross - arranged at the center of the frame. The two sliders are respectively screwed on the first and second thread segments of the lead screw. The slider is slidably connected to the frame along the length direction of the lead screw. Specifically, tracks are provided on both sides of the lead screw at the bottom of the slider, and both sides of the slider are slidably connected to the tracks, playing a role of guiding and supporting.

[0055] The clamping jaws are arranged on the slider and are used for clamping the side of the box body. The bearing platform is installed on the frame between the two relatively - arranged sliders. The bearing platform is located above the intersection of the lead screws and is used for supporting the bottom of the box body. When the side plate of the box body moves inwards through the clamping jaws, it is close to and aligned with the edge of the upper bottom plate of the bearing platform, facilitating subsequent welding.

[0056] The upper surface of the slider is not higher than the upper surface of the bearing platform, ensuring that when the slider moves inwards and enters below the workpiece on the bearing platform, it does not interfere with the workpiece. The clamping jaws are installed on the outer side edge of the slider, and the top of the clamping jaws is higher than the upper surface of the bearing platform, ensuring that after the clamping jaws are tightened in place, the lower edge of the side plate can be closely attached to the outer edge of the bottom plate, facilitating subsequent welding.

[0057] To enable the clamping jaws to be replaceable selectively, the clamping jaws and the slider are set as a detachable connection. A dovetail groove is opened on the outer side edge of the slider, and a dovetail bar matching the dovetail groove is arranged on the clamping jaws.

[0058] To facilitate preliminary welding and fixing, an avoidance notch is opened on the outer side edge of the slider where the clamping jaws are not installed. The bottom plate can be preliminarily welded and fixed from the avoidance notch.

[0059] A connecting plate is connected to the bottom of the slider. A nut sleeve screwed on the first or second thread segment is arranged on the connecting plate. By sliding the nut sleeve on the lead screw, the slider is driven to reciprocate along the length direction of the lead screw. And because both sides of the bottom of the slider are slidably connected to the tracks fixed on the frame, the reciprocating movement of the slider is stable and reliable, and the slider has a certain load - bearing capacity and can support the bottom of the box body extending beyond the outside of the bearing platform above. A reinforcing rib is arranged between the connecting plate and the slider to connect the connecting plate and the slider into a whole, improving the overall stability.

[0060] To ensure the stability of the bearing platform in supporting the box body, a number of vacuum suction cups are installed on the bearing platform. The vacuum suction cups are connected to external air sources such as vacuum pumps to provide negative pressure and adsorb the bottom of the box body on the bearing platform, ensuring the stability of the bottom plate.

[0061] Specifically, the frame includes a central frame and four support frames. The four support frames are circumferentially and evenly spaced outside the central frame. An inclined strut is also connected between adjacent support frames to strengthen the support frames located on the outside. The intersection of the driving members is located within the central frame. The support frames are symmetrically fixed in pairs outside the central frame. The first threaded section and the second threaded section of the lead screw are respectively located in the support frames on both sides. The support frames and the central frame play a role in restricting and protecting the lead screw, the driving motor, and the slider. Since the first threaded section and the second threaded section are located in the support frames, the slider is restricted to reciprocate within the range formed by the support frames. The carrier table is fixed on the central frame, above the intersection of the lead screws. There is a vertical drop between the two intersecting lead screws to avoid interference.

[0062] Wherein, the lead screw includes an intermediate shaft, a first shaft rod, and a second shaft rod.

[0063] The intermediate shaft is located within the central frame. Couplings are connected to both ends of the intermediate shaft. The first shaft rod is located in the support frame on one side. One end of the first shaft rod is connected to the output end of the driving motor, and the other end passes through the central frame and is connected to the coupling. The first threaded section is provided on the first shaft rod. The second shaft rod is located in the support frame on the other side corresponding to the first shaft rod. One end of the second shaft rod passes through the central frame and is connected to the coupling. Thus, the intermediate shaft, the first shaft rod, and the second shaft rod are connected into one body through the coupling. The other end of the second shaft rod is connected to the support frame through a bearing block. The second threaded section is provided on the second shaft rod. The two threaded sections are respectively located in the support frames on both sides. The lead screw is divided into three sections, enabling the lead screw to be conveniently replaced and having a certain deviation redundancy in the radial and axial directions.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A flexible box welding fixture, characterized in that: include: frame; At least two driving members, the driving members are arranged crosswise at the center of the frame, and the driving members include: A driving motor, wherein the driving motor is installed in the frame; A screw rod, one end of which is connected to the driving motor, and the other end of which is rotatably connected to the frame, wherein the first and second ends of the screw rod respectively form a first thread segment and a second thread segment with opposite rotation directions; Two sliders, the two sliders are respectively screwed to the first thread segment and the second thread segment on the screw rod, and the sliders are slidably connected to the frame along the length direction of the screw rod; A clamping claw is provided on the slider and is used for clamping the side of the box body; The bearing platform is installed on the frame between the two sliding blocks arranged opposite to each other and is used for supporting the bottom of the box body.

2. The flexible box welding fixture according to claim 1, characterized in that: The upper surface of the slider is not higher than the upper surface of the bearing platform, the clamp is installed on the outer side of the slider, and the top of the clamp is higher than the upper surface of the bearing platform.

3. The flexible box welding fixture according to claim 2, characterized in that: A dovetail groove is provided on the outer side of the sliding block, and a dovetail strip matching the dovetail groove is provided on the clamping jaw.

4. The flexible box welding fixture according to claim 2, characterized in that: An avoidance notch is provided at the outer side of the sliding block where the clamping claw is not installed.

5. The flexible box welding fixture according to claim 2, characterized in that: A connecting plate is connected to the bottom of the slider, a nut sleeve screwed to the first thread segment or the second thread segment is arranged on the connecting plate, and a reinforcing rib is arranged between the connecting plate and the slider.

6. The flexible box welding fixture according to claim 1, characterized in that: A plurality of vacuum suction cups are installed on the bearing platform.

7. The flexible box welding fixture according to claim 1, characterized in that: The framework includes: a center frame, wherein the intersection of the driving members is located within the center frame; A plurality of support frames are symmetrically installed outside the central frame, and the first thread segment and the second thread segment of the screw rod are respectively located in the support frames on both sides.

8. The flexible box welding fixture according to claim 7, characterized in that: The screw rod comprises: An intermediate shaft, the intermediate shaft is located in the central frame, and couplings are connected to both ends of the intermediate shaft; A first shaft, one end of which is connected to the output end of the driving motor, and the other end of which passes through the central frame and is connected to the coupling, and the first threaded section is arranged on the first shaft; A second shaft rod has one end passing through the center frame and connected to the coupling, and the other end connected to the support frame through a bearing seat, and the second threaded section is arranged on the second shaft rod.