Gantry equipment and intelligent welding and cutting production line
By designing C-shaped support columns and optimizing the track layout, the gantry equipment solves the problem of using the equipment in confined spaces, realizes intelligent and automated welding and cutting of large workpieces, reduces equipment size and installation costs, and improves transportation convenience and component lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHU XINGJIAN INTELLIGENT ROBOT CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-06-05
AI Technical Summary
The existing gantry crane is too large to be used properly in the cramped space of old factory buildings, which means that the welding and cutting production lines cannot meet the needs of intelligent and automated welding and cutting of a wide variety of large workpieces.
Design a gantry crane that uses upper horizontal arms, vertical arms, and lower horizontal arms on both sides to form a C-shaped support column, shortening the length of the crane, ensuring that the vertical beam moves without interference, and reducing installation costs and improving transportation convenience by optimizing the track layout.
It enables the gantry crane to be used normally in confined spaces, meets the needs of intelligent and automated welding and cutting of large workpieces, reduces equipment size and installation costs, and improves the convenience of transport vehicles and the lifespan of parts.
Smart Images

Figure CN224322579U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of welding and cutting technology, and more specifically, to a gantry milling machine and an intelligent welding and cutting production line. Background Technology
[0002] To enhance the intelligence of existing welding and cutting production lines, it is necessary to upgrade and transform the existing old welding and cutting production lines in the existing factory buildings. This will enable the original old welding and cutting production lines to adapt to the needs of intelligent and automated welding and cutting of more types and larger workpieces.
[0003] Gantry cranes have significant advantages such as large lifting capacity and high automation efficiency, making them particularly suitable for handling, welding, and cutting large and varied workpieces.
[0004] However, due to limited space in the existing old factory buildings, and the large size of the existing gantry cranes, they cannot be used normally within the existing old factory buildings. As a result, the existing welding and cutting production lines cannot meet the needs of intelligent and automated welding and cutting of a wide variety of large workpieces. Utility Model Content
[0005] The technical problem to be solved by this utility model is how to improve the existing gantry traveling equipment so that the gantry traveling equipment can be used normally in a narrow space.
[0006] To solve the above-mentioned technical problems, this utility model provides a gantry crane for welding and cutting, the gantry crane comprising:
[0007] The two upper cross arms are set at intervals and parallel to each other along the front-to-back direction;
[0008] The crossbeams are respectively connected to the front ends of the two upper cross arms;
[0009] A movable seat is provided at the crossbeam, and the movable seat is used to reciprocate along the crossbeam;
[0010] A vertical beam is provided at the movable seat, and the vertical beam is used to move up and down along the movable seat;
[0011] Two vertical arms, the top of each vertical arm being connected to the rear end of one of the upper horizontal arms; and
[0012] Two lower horizontal arms are arranged at intervals, corresponding one-to-one with the two upper horizontal arms, and the bottom of each vertical arm is connected to the rear end of one of the lower horizontal arms.
[0013] Optionally, each of the upper cross arms is arranged perpendicular to the crossbeam, with one upper cross arm located at the left end of the crossbeam and the other upper cross arm located near the center of the crossbeam.
[0014] Optionally, a reinforcing rib support arm is provided on the right side of each upper cross arm, and the reinforcing rib support arm connects the right side of the upper cross arm to the bottom surface of the cross beam.
[0015] Optionally, a linear guide rail is provided below each of the lower cross arms, and the two linear guide rails are arranged parallel to each other. The lower cross arms reciprocate along the linear guide rails, and the cross-section of the linear guide rails is I-shaped.
[0016] Optionally, a plurality of anti-loosening mechanisms are provided at the bottom end of the lower cross arm located at the left end of the cross beam. The plurality of anti-loosening mechanisms are arranged along the linear guide rail, and all of the plurality of anti-loosening mechanisms are located on the left side of the linear guide rail. Each anti-loosening mechanism is provided with a protruding structure that protrudes to the right, and the protruding structure is engaged in a groove on the left side of the linear guide rail.
[0017] Optionally, each of the lower crossarms is provided with a helical gear and a driver at its bottom, the driver being used to drive the helical gear to rotate.
[0018] Each of the linear guide rails is provided with a helical rack, which is arranged along the linear guide rail and meshes with the helical gear in a one-to-one correspondence.
[0019] Optionally, the length of the lower cross arm is longer than the length of the upper cross arm.
[0020] The crossbeam is positioned above the two upper cross arms, and the front of the crossbeam is flush with the front end face of the upper cross arms.
[0021] Optionally, the upper cross arm, the vertical arm, and the lower cross arm connected in sequence are a shell structure integrally formed, and the shell structure is provided with multiple reinforcing ribs.
[0022] Optionally, in a vertical plane perpendicular to the crossbeam, the top edge of the upper cross arm is a horizontal straight line, and the bottom edge of the upper cross arm is an oblique line facing the front side of the lower cross arm;
[0023] In a vertical plane perpendicular to the crossbeam, the bottom edge of the lower crossarm is a horizontal straight line, and the top edge of the lower crossarm is a diagonal line facing the front side of the upper crossarm.
[0024] In addition, this utility model also provides an intelligent welding and cutting production line, including the aforementioned gantry equipment.
[0025] The technical effects of this invention include at least the following: The upper horizontal arm, vertical arm, and lower horizontal arm on both sides form a C-shaped support column, effectively supporting the crossbeam and ensuring that the gantry crane can handle heavy and large workpieces. Furthermore, the two lower horizontal arms are spaced vertically relative to the two upper horizontal arms, allowing workpieces moved along the crossbeam to smoothly pass through the gap between the front ends of the lower and upper horizontal arms, ensuring that the lateral travel range of the vertical beam is not interfered with. This also ensures the flexibility of the moving seat on the crossbeam and the vertical beam's movement. Thus, the normal operation of the gantry crane is not limited by confined spaces. More importantly, this C-shaped support column significantly reduces the length of the gantry crane in the longitudinal direction compared to existing support columns, halving its length and significantly reducing its volume. This allows the gantry crane to operate normally in confined spaces, enabling existing welding and cutting production lines to meet the needs of intelligent and automated welding and cutting of various types and large workpieces. Attached Figure Description
[0026] Figure 1 A schematic perspective view of the gantry equipment according to a specific embodiment of the present utility model;
[0027] Figure 2 This is a schematic side view of the gantry equipment according to a specific embodiment of the present utility model;
[0028] Figure 3 This is a schematic rear view of the gantry equipment according to a specific embodiment of the present utility model;
[0029] Figure 4 This is another schematic perspective view of the gantry equipment according to a specific embodiment of the present utility model. Detailed Implementation
[0030] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the embodiments of this utility model. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it. Embodiments of this utility model can be implemented in many ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0031] It is understood that the terms "first," "second," etc., used in this utility model may be used to describe various technical terms herein, but should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. However, unless specifically stated otherwise, these technical terms are not limited by these terms. These terms are only used to distinguish one technical term from another. For example, without departing from the scope of this utility model, the first receiving device and the second receiving device are different receiving devices, the first surface and the second surface are different surfaces, and the first plane, the second plane, the third plane, and the fourth plane are different planes. In the description of the embodiments of this utility model, "a plurality of" or "several" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0032] In the description of the embodiments of this utility model, unless otherwise expressly specified and limited, the terms "installation," "connection," "setting," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model according to the specific circumstances.
[0033] In the description of the embodiments of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the horizontal height of the first feature is higher than the horizontal height of the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the horizontal height of the first feature is lower than the horizontal height of the second feature.
[0034] It should be noted that when a component is referred to as "fixed to" or "set on" another component, or similar terms such as "fixed to" or "set on," it can be directly on the other component or may have an intervening component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or may have an intervening component.
[0035] In addition, in the attached diagram, the y-axis represents the horizontal direction, that is, the left-right direction, and the positive direction of the Y-axis (that is, the direction the arrow points to) represents the left, and the negative direction of the Y-axis (that is, the direction opposite to the positive direction of the Y-axis) represents the right; the X-axis represents the vertical direction, that is, the front-back direction, and the positive direction of the X-axis (that is, the direction the arrow points to) represents the front, and the negative direction of the X-axis (that is, the direction opposite to the positive direction of the X-axis) represents the back; the Z-axis represents the vertical direction, that is, the up-down direction, and the positive direction of the Z-axis (that is, the direction the arrow points to) represents the up, and the negative direction of the Z-axis (that is, the direction opposite to the positive direction of the Z-axis) represents the down; it should also be noted that the aforementioned representations of the X-axis, Y-axis and Z-axis are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0036] Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
[0037] See Figures 1 to 4 This embodiment provides a gantry crane for welding and cutting, the gantry crane comprising:
[0038] Two upper horizontal arms 11 are set at intervals and parallel to each other along the front-to-back direction;
[0039] The crossbeam 2 is connected to the front ends of the two upper cross arms 11 respectively;
[0040] A movable seat 3 is disposed at the crossbeam 2, and the movable seat 3 is used to reciprocate along the crossbeam 2.
[0041] A vertical beam 4 is provided at the movable seat 3, and the vertical beam 4 is used to move up and down along the movable seat 3.
[0042] Two vertical arms 12, the top of each vertical arm 12 being connected to the rear end of one of the upper horizontal arms 11; and
[0043] Two lower horizontal arms 13 are arranged at intervals, corresponding one-to-one with the two upper horizontal arms 11. The bottom of each vertical arm 12 is connected to the rear end of one of the lower horizontal arms 13.
[0044] It should be noted that the gantry equipment in this embodiment is used for welding and cutting. It can be equipped with a welding or cutting device mounted on the vertical beam 4, or it can be equipped with auxiliary equipment for the welding and cutting process, such as an electromagnetic gripping device, a visual recognition device, or other welding and cutting auxiliary equipment. Of course, the bottom of the vertical beam 4 can also integrate multiple devices, such as simultaneously integrating a plasma cutter and an electromagnetic gripping device.
[0045] In this invention, the upper horizontal arms 11, vertical arms 12, and lower horizontal arms 13 on both sides form a C-shaped support column, effectively supporting the crossbeam 2 and ensuring that the gantry crane can handle heavy and large workpieces. Furthermore, the two lower horizontal arms 13 are spaced vertically relative to the two upper horizontal arms 11, allowing workpieces being moved along the crossbeam 2 to pass smoothly through the gap between the front ends of the lower horizontal arms 13 and the upper horizontal arms 11, ensuring that the lateral movement range of the vertical beam 4 is not interfered with. This also ensures the flexibility of movement of the movable seat 3 on the crossbeam 2 and the vertical beam 4. Thus, the normal operation of the gantry crane is not limited by confined spaces. More importantly, this C-shaped support column significantly reduces the length of the gantry crane in the front-to-back direction compared to existing support columns, halving its length and significantly reducing its volume. This enables the gantry crane to operate normally in confined spaces, allowing existing welding and cutting production lines to meet the needs of intelligent and automated welding and cutting of a wide variety of large workpieces.
[0046] Furthermore, each of the upper cross arms 11 is arranged perpendicularly to the cross beam 2, one upper cross arm 11 is located at the left end of the cross beam 2, and the other upper cross arm 11 is located near the center of the cross beam 2.
[0047] Since gantry cranes often need to be installed on tracks, two parallel tracks must be installed inside the factory. These tracks are typically raised above the factory floor, and the distance between them is usually considerable, thus affecting the movement range of vehicles within the factory. While it's possible to lower the track height to near-flush with the factory floor, this increases the installation cost of the gantry crane. Furthermore, frequent vehicle traffic on the tracks causes wear and tear, reducing the gantry crane's maneuverability. Additionally, for some sophisticated intelligent mobile transport vehicles, the movement along the buried tracks can still cause bumps, affecting the lifespan of internal components.
[0048] Therefore, in this embodiment, one upper crossarm 11 is located at the left end of the crossbeam 2, and the other upper crossarm 11 is located near the center of the crossbeam 2. This shortens the distance between the two parallel tracks, allowing the transport vehicle to simply stop below the right end of the crossbeam 2, and then the vertical beam 4 passes along the crossbeam 2 through the upper crossarm 11 and the lower crossarm 13 to hoist the workpiece onto the transport vehicle located below the right end of the crossbeam 2. The transport vehicle does not need to cross the tracks. This reduces the installation cost of the gantry crane, improves the convenience of transport by the transport vehicle, and extends the lifespan of the components inside the transport vehicle.
[0049] Additionally, it should be noted that the other upper cross arm 11 being positioned close to the center of the crossbeam 2 can mean that the other upper cross arm 11 is positioned at the midpoint of the length of the crossbeam 2, or it can mean that it is positioned to the left or right of the midpoint of the length of the crossbeam 2, depending on the specific usage of the gantry equipment.
[0050] Furthermore, a reinforcing rib support arm 5 is provided on the right side of each of the upper cross arms 11, and the reinforcing rib support arm 5 connects the right side of the upper cross arm 11 to the bottom surface of the cross beam 2.
[0051] Two reinforcing rib support arms 5 are used to effectively support the right side of the crossbeam 2.
[0052] The reinforcing rib support arm 5 here can be composed of multiple inverted right-angled triangular plates arranged sequentially along the front-back direction.
[0053] Furthermore, a linear guide rail is provided below each of the lower cross arms 13, and the two linear guide rails are arranged parallel to each other. The lower cross arm 13 moves back and forth along the linear guide rail, and the cross section of the linear guide rail is I-shaped.
[0054] The lower horizontal arm 13 is prevented from becoming loose from the linear guide by using a linear guide and a corresponding slider.
[0055] Furthermore, a plurality of anti-loosening mechanisms are provided at the bottom end of the lower cross arm 13 located at the left end of the cross beam 2. The plurality of anti-loosening mechanisms are arranged along the linear guide rail, and all of the plurality of anti-loosening mechanisms are located on the left side of the linear guide rail. The anti-loosening mechanism is provided with a protruding structure protruding to the right, and the protruding structure is engaged in the groove on the left side of the linear guide rail.
[0056] The protruding structure of the anti-loosening mechanism is used to lock into the groove on the left side of the linear guide rail to prevent the workpiece transported on the right end of the crossbeam 2 from being too heavy, which would cause the crossbeam 2 to overturn to the right.
[0057] Furthermore, each of the lower cross arms 13 is provided with a helical gear and a driver at its bottom, the driver being used to drive the helical gear to rotate.
[0058] Each of the linear guide rails is provided with a helical rack, which is arranged along the linear guide rail and meshes with the helical gear in a one-to-one correspondence.
[0059] The helical gear is driven to rotate by the driver, so that the helical gear moves along the helical rack, and the lower horizontal arm 13 moves on the linear guide rail.
[0060] Furthermore, the lower horizontal arm 13 is longer than the upper horizontal arm 11.
[0061] The crossbeam 2 is positioned above the two upper cross arms 11, and the front of the crossbeam 2 is flush with the front end face of the upper cross arms 11.
[0062] This design improves the stability of the support for the crossbeam 2 and prevents the crossbeam 2 from tilting forward.
[0063] Furthermore, the upper horizontal arm 11, the vertical arm 12, and the lower horizontal arm 13, which are connected in sequence, are integrally formed shell structures, and multiple reinforcing ribs are provided inside the shell structure.
[0064] This configuration reduces the manufacturing difficulty, cost, and overall weight of the upper cross arm 11, the vertical arm 12, and the lower cross arm 13, while simultaneously increasing the support strength of the upper cross arm 11, the vertical arm 12, and the lower cross arm 13 for the crossbeam 2, preventing deformation of the shell.
[0065] Furthermore, in a vertical plane perpendicular to the crossbeam 2, the top edge of the upper cross arm 11 is a horizontal straight line, and the bottom edge of the upper cross arm 11 is an oblique line facing the front side of the lower cross arm 13.
[0066] In a vertical plane perpendicular to the crossbeam 2, the bottom edge of the lower cross arm 13 is a horizontal straight line, and the top edge of the lower cross arm 13 is an oblique line facing the front side of the upper cross arm 11.
[0067] This configuration increases the distance between the front end of the upper horizontal arm 11 and the lower horizontal arm 13, and simultaneously improves the connection strength between the upper horizontal arm 11 and the vertical arm 12, as well as the connection strength between the lower horizontal arm 13 and the vertical arm 12.
[0068] In addition, this embodiment also provides an intelligent welding and cutting production line, including the aforementioned gantry equipment.
[0069] Since the technical effects achieved by this intelligent welding and cutting production line are the same as those of the gantry equipment described above, the intelligent welding and cutting production line will not be explained further.
[0070] Although the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.
Claims
1. A gantry crane, characterized in that, For welding and cutting, the gantry equipment includes: The two upper cross arms are set at intervals and parallel to each other along the front-to-back direction; The crossbeams are respectively connected to the front ends of the two upper cross arms; A movable seat is provided at the crossbeam, and the movable seat is used to reciprocate along the crossbeam; A vertical beam is provided at the movable seat, and the vertical beam is used to move up and down along the movable seat; Two vertical arms, the top of each vertical arm being connected to the rear end of one of the upper horizontal arms; and Two lower horizontal arms are arranged at intervals, corresponding one-to-one with the two upper horizontal arms, and the bottom of each vertical arm is connected to the rear end of one of the lower horizontal arms.
2. The gantry crane according to claim 1, characterized in that, Each of the upper cross arms is arranged perpendicularly to the crossbeam, with one upper cross arm located at the left end of the crossbeam and the other upper cross arm located near the center of the crossbeam.
3. The gantry crane according to claim 2, characterized in that, Each of the upper cross arms is provided with a reinforcing rib support arm on its right side, which connects the right side of the upper cross arm to the bottom surface of the cross beam.
4. The gantry crane according to claim 2, characterized in that, A linear guide rail is provided below each of the lower cross arms, and the two linear guide rails are arranged parallel to each other. The lower cross arms reciprocate along the linear guide rails, and the cross-section of the linear guide rails is I-shaped.
5. The gantry crane according to claim 4, characterized in that, Multiple anti-loosening mechanisms are provided at the bottom end of the lower cross arm located at the left end of the cross beam. The multiple anti-loosening mechanisms are arranged along the linear guide rail and are all located on the left side of the linear guide rail. Each anti-loosening mechanism has a protruding structure that protrudes to the right and is engaged in a groove on the left side of the linear guide rail.
6. The gantry crane according to claim 4, characterized in that, Each of the lower cross arms is provided with a helical gear and a driver at its bottom, the driver being used to drive the helical gear to rotate. Each of the linear guide rails is provided with a helical rack, which is arranged along the linear guide rail and meshes with the helical gear in a one-to-one correspondence.
7. The gantry crane according to any one of claims 1 to 6, characterized in that, The length of the lower cross arm is longer than the length of the upper cross arm. The crossbeam is positioned above the two upper cross arms, and the front of the crossbeam is flush with the front end face of the upper cross arms.
8. The gantry crane according to any one of claims 1 to 6, characterized in that, The upper cross arm, the vertical arm, and the lower cross arm, which are connected in sequence, form an integral shell structure, and the shell structure is provided with multiple reinforcing ribs.
9. The gantry crane according to any one of claims 1 to 6, characterized in that, In a vertical plane perpendicular to the crossbeam, the top edge of the upper cross arm is a horizontal straight line, and the bottom edge of the upper cross arm is a diagonal line facing the front of the lower cross arm. In a vertical plane perpendicular to the crossbeam, the bottom edge of the lower crossarm is a horizontal straight line, and the top edge of the lower crossarm is a diagonal line facing the front side of the upper crossarm.
10. An intelligent welding and cutting production line, characterized in that, Includes the gantry equipment as described in any one of claims 1 to 9.