A side net welding tool for a side net stroller
By designing a welding fixture that can drive the deformation of a U-shaped frame, the problem of difficult product removal after welding in existing technologies has been solved, achieving automatic separation and rapid relocation, improving welding efficiency and reducing labor intensity and noise.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LUOYANG BOLIDA INTELLIGENT TECHNOLOGY CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-21
AI Technical Summary
The existing side netting trolley welding fixture makes it difficult to remove the product after welding, which increases labor intensity and affects welding efficiency.
Design a welding fixture comprising a rectangular frame and a U-shaped frame. Drive the U-shaped frame to deform via a telescopic device, causing it to expand or close around a movable connecting mechanism, thereby achieving automatic separation of the side mesh outer frame from the positioning rod. Combined with the design of rollers and offset positioning rods, achieve rapid displacement and automatic detachment.
It eliminates the violent operation of hammering required for traditional tooling to remove parts, reduces labor intensity, improves welding efficiency, and reduces friction noise between the tooling and the worktable.
Smart Images

Figure CN224526366U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of netting cart production technology, and in particular to a side netting welding fixture for a side netting cart. Background Technology
[0002] The existing side mesh welding fixture structure of the side mesh trolley, such as Figure 1 As shown, the fixture includes a rectangular frame 1 (with the same dimensions as the side mesh) and positioning rods 2 located near the ends of each outer wall of the rectangular frame for positioning the outer frame of the side mesh. Multiple positioning trays 3 are evenly spaced on the inner wall for positioning the grid. Although this fixture has a simple structure and light weight, and can be placed on the workbench, the fixed dimensions of the fixture can cause the product to be clamped and difficult to remove after welding. Workers need to use a hammer to strike the fixture to separate the two, which increases labor intensity and affects welding efficiency.
[0003] To address this, we designed a side mesh welding fixture for a side mesh trolley. Utility Model Content
[0004] In order to overcome the shortcomings of the prior art, this utility model discloses a side mesh welding fixture for a side mesh trolley.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A side mesh welding fixture for a side mesh trolley includes a rectangular frame, a positioning rod on the outer wall of the rectangular frame, and a positioning support plate on the inner wall. The rectangular frame is composed of two U-shaped frames, with the open ends of the two U-shaped frames facing each other and connected by a movable connecting mechanism. Rollers are provided at the bottom of the closed ends of the two U-shaped frames.
[0007] It also includes a telescopic device, the two ends of which are respectively connected to the closed ends of the two U-shaped frames; the telescopic device drives the two U-shaped frames to deform around the movable connecting mechanism, which facilitates material handling.
[0008] Furthermore, the two corresponding positioning rods are staggered.
[0009] Furthermore, the movable connection mechanism is a hinged structure, with the bottom openings of the two U-shaped frames hinged together by hinges;
[0010] Both ends of the telescopic device are respectively hinged to the closed ends of the corresponding U-shaped frame via rotating shafts;
[0011] The hinge point and the hinge points of the two pivots form a triangular layout.
[0012] Furthermore, an n-shaped frame is fixed at the middle of the closed end of the U-shaped frame, and the pivot is located at the bottom of the n-shaped frame. The end of the telescopic device is hinged to the n-shaped frame through the pivot.
[0013] Furthermore, the movable connection mechanism is a sliding structure, including a guide rod, one end of which is fixed to the side wall of one of the U-shaped frames, and the other end is inserted into the sliding channel of the side wall of the other U-shaped frame to form a sliding pair;
[0014] The two ends of the telescopic device are respectively fixedly connected to the closed ends of the two U-shaped frames.
[0015] Furthermore, the guide rod is detachably fixed to the side wall of the corresponding U-shaped frame by bolts.
[0016] Furthermore, the sidewalls of the U-shaped frame have an internal hollow structure, and their inner cavities form the sliding channel.
[0017] Furthermore, the telescopic device is a two-way hydraulic cylinder, a two-way pneumatic cylinder, or a two-way electric push rod.
[0018] Compared with the prior art, the beneficial effects of this utility model are:
[0019] 1. By driving the two U-shaped frames to deform through the telescopic device (hinged rotation / sliding unfolding), the outer frame of the side netting is automatically separated from the positioning rod, eliminating the violent operation of hammering required by traditional tooling for picking up parts;
[0020] 2. The rollers enable rapid tool movement, eliminating noise caused by sliding friction between the tool and the worktable;
[0021] 3. The design of the two corresponding positioning rods being staggered means that even after the telescopic equipment drives the two U-shaped frames to deform and the side net outer frame is automatically separated, the side net outer frame can be rotated to release the side net outer frame from the state of being clamped by the two corresponding positioning rods. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of a structure in the prior art;
[0023] Figure 2 This is a schematic diagram of the structure of this utility model;
[0024] Figure 3 This is a top view of the present invention;
[0025] Figure 4 for Figure 3 AA section view;
[0026] Figure 5 This is a cross-sectional view of the present invention in another state;
[0027] Figure 6 This is a cross-sectional view of another structure of this utility model.
[0028] In the diagram: 1. Rectangular frame; 11. U-shaped frame; 12. Roller; 13. Hinge; 14. N-shaped frame; 15. Rotating shaft; 16. Guide rod; 17. Bolt; 2. Positioning rod; 3. Positioning support plate; 4. Telescopic device. Detailed Implementation
[0029] The present invention will be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if terms such as "upper", "lower", "front", "rear", "left", "right" indicate orientation or positional relationship, they are only corresponding to the drawings of this application for the convenience of describing the present invention. It should be understood that if terms such as "end", "side", "end portion", "side part", "lateral", "longitudinal", etc. indicate orientation or positional relationship, they are only corresponding to the length and width of the corresponding component. That is, "end" indicates the head and tail area in the length direction of the corresponding component, and "side part" indicates the head and tail area in the width direction of the corresponding component. They are used for the convenience of describing the present invention and do not indicate or imply that the device or element referred to must have a specific orientation.
[0030] Example 1, in conjunction with Appendix Figure 2-5 A side mesh welding fixture for a side mesh trolley, comprising:
[0031] A rectangular frame 1 has two positioning rods 2 welded to each outer side wall for engaging the outer frame of the side mesh; at least two positioning brackets 3 are installed at equal intervals on each inner side wall for fixing the grid mesh.
[0032] As needed, the two opposing positioning rods 2 are installed in a staggered manner. For example, refer to the attached... Figure 3 As shown, the positioning rod 2 on the left side of the front side wall of the rectangular frame 1 and the positioning rod 2 on the left side of the rear side wall of the rectangular frame 1 are two opposing positioning rods 2; that is, the straight line containing the positioning rod 2 on the left side of the front side wall of the rectangular frame 1 and the positioning rod 2 on the left side of the rear side wall of the rectangular frame 1 intersects the horizontal central axis of the rectangular frame 1.
[0033] As needed, the spacing between adjacent positioning plates 3 is 200-300mm to ensure that the suspended edges of the grid do not sag.
[0034] The rectangular frame 1 consists of two U-shaped frames 11; the open ends of the two U-shaped frames 11 face each other and their bottoms are hinged together by hinges 13; a roller 12 is welded to the bottom of the closed end and hinged (the hinge point is denoted as P1). Preferably, the roller 12 is a universal wheel with a braking function.
[0035] In this configuration, an n-shaped frame 14 is vertically fixed at the middle of the closed end of each U-shaped frame 11, and a rotating shaft 15 is installed at the bottom of the n-shaped frame 14.
[0036] The telescopic device 4 uses a two-way cylinder, and its two ends are hinged to the two n-shaped frames 14 on both sides through the rotating shaft 15 (the hinge points are respectively marked as P2 and P3).
[0037] Points P1, P2, and P3 form a triangular layout to ensure smooth unfolding and a fixed unfolding direction.
[0038] Working principle:
[0039] Welding condition: Refer to attached document Figure 4 The telescopic device 4 extends, pushing the two U-shaped frames 11 to unfold to their maximum size around point P1, so that the two U-shaped frames 11 are on the same plane, and the side mesh can be placed on the rectangular frame 1 for welding operations.
[0040] Pickup status: See attached document Figure 5 After welding is completed, the telescopic device 4 retracts, causing the U-shaped frame 11 to close around point P1. The U-shaped frame 11 then flips, causing the side net to detach automatically.
[0041] Example 2, in conjunction with Appendix Figure 6 A side mesh welding fixture for a side mesh trolley, which differs from Embodiment 1 in that:
[0042] The side walls of the U-shaped frame 11 have an internal hollow structure, forming a sliding channel;
[0043] The right end of the guide rod 16 is fixed to the side wall of the right U-shaped frame 11 by bolt 17, and the left end is inserted into the sliding channel of the left frame 11 to form a sliding pair;
[0044] The telescopic device 4 is a bidirectional electric push rod, with both ends fixed to the closed ends of the U-shaped frame 11 on both sides via flanges.
[0045] Working principle:
[0046] Welding status: The telescopic device 4 retracts, causing the U-shaped frame 11 to slide, so that the tooling size matches the side mesh size. The side mesh can then be placed on the rectangular frame 1 for welding operations.
[0047] Removal status: After welding is completed, the telescopic device 4 extends and pushes the right frame 11b to slide outward along the guide rod 16, so that the side net automatically detaches.
[0048] In other embodiments, the telescopic device 4 may also employ a bidirectional hydraulic cylinder.
[0049] The parts of this utility model not described in detail are prior art. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the above embodiments should be regarded as exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended to include all changes that fall within the meaning and scope of the equivalents of the claims in this utility model, and no reference numerals in the claims should be regarded as limiting the content of the claims.
Claims
1. A side mesh welding fixture for a side mesh trolley, comprising a rectangular frame (1), a positioning rod (2) disposed on the outer side wall of the rectangular frame (1), and a positioning support plate (3) on the inner side wall, characterized in that: The rectangular frame (1) is composed of two U-shaped frames (11). The open ends of the two U-shaped frames (11) are arranged opposite each other and connected by a movable connecting mechanism. Rollers (12) are provided at the bottom of the closed ends of the two U-shaped frames (11). It also includes a telescopic device (4), the two ends of which are respectively connected to the closed ends of the two U-shaped frames (11); by the telescopic drive of the telescopic device (4), the two U-shaped frames (11) are deformed around the movable connection mechanism, which facilitates material handling.
2. The side mesh welding fixture for a side mesh trolley according to claim 1, characterized in that: The two corresponding positioning rods (2) are staggered.
3. The side mesh welding fixture for a side mesh trolley according to claim 1, characterized in that: The movable connection mechanism is a hinge structure, and the bottom of the open ends of the two U-shaped frames (11) are hinged to each other by a hinge (13); The two ends of the telescopic device (4) are respectively hinged to the closed ends of the corresponding U-shaped frame (11) via a pivot (15); The hinge point of the hinge (13) and the hinge points of the two pivots (15) form a triangular arrangement.
4. The side mesh welding fixture for a side mesh trolley according to claim 3, characterized in that: The U-shaped frame (11) has an n-shaped frame (14) fixed in the middle of its closed end. The pivot (15) is located at the bottom of the n-shaped frame (14). The end of the telescopic device (4) is hinged to the n-shaped frame (14) through the pivot (15).
5. The side mesh welding fixture for a side mesh trolley according to claim 1, characterized in that: The movable connection mechanism is a sliding structure, including a guide rod (16). One end of the guide rod (16) is fixed to the side wall of one of the U-shaped frames (11), and the other end is inserted into the sliding channel of the side wall of the other U-shaped frame (11) to form a sliding pair. The two ends of the telescopic device (4) are fixedly connected to the closed ends of the two U-shaped frames (11).
6. The side mesh welding fixture for a side mesh trolley according to claim 5, characterized in that: The guide rod (16) is detachably fixed to the side wall of the corresponding U-shaped frame (11) by bolts (17).
7. The side mesh welding fixture for a side mesh trolley according to claim 5, characterized in that: The sidewalls of the U-shaped frame (11) are hollow internally. Its inner cavity forms the sliding channel.
8. A side mesh welding fixture for a side mesh trolley according to any one of claims 1-7, characterized in that: The telescopic device (4) is a two-way hydraulic cylinder, a two-way air cylinder, or a two-way electric push rod.