Welding fixture for elevator outbound box

Abstract

The utility model relates to a welding clamp for an elevator outbound box, the elevator outbound box comprises a panel, the panel is provided with a hole groove and a preset installation position of a part to be welded; comprising a main body, a clamp positioning piece and a to-be-welded piece positioning part, the clamp positioning piece is mounted on the main body and is used for being clamped and positioned with the hole groove; the to-be-welded part positioning parts are positioned on the main body and are arranged in one-to-one correspondence with the to-be-welded part preset mounting positions; the to-be-welded part positioning part comprises a limiting ring and a through groove, a to-be-welded part placing area is defined by the inner side of the limiting ring, the through groove is at least formed in the local circumferential side of the limiting ring, and the screw positioning precision is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of elevator external call box processing equipment, and in particular to a welding fixture for elevator external call boxes. Background Technology

[0002] The existing elevator external call box panel usually requires screws to be welded to a predetermined position so that the panel can be connected to the external structure by screws.

[0003] In existing screw welding processes, operators typically first fix the panel to the workstation, then place the screw in the welding position, and finally use welding equipment to weld the panel and screw together. However, this method is prone to operator errors that can lead to inaccurate screw positioning, resulting in a low product yield. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects in the prior art, thereby providing a welding fixture for elevator external call boxes.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A welding fixture for an elevator external call box, the elevator external call box including a panel, the panel having slots and preset mounting positions for the parts to be welded;

[0007] Includes the main body, fixture positioning components, and positioning parts for the workpiece to be welded;

[0008] The clamp positioning component is mounted on the main body and is used to engage and position with the slot.

[0009] The positioning part of the workpiece to be welded is located on the main body and is set one-to-one with the preset installation position of the workpiece to be welded;

[0010] The positioning part for the workpiece to be welded includes a limiting ring and a through groove. The inner side of the limiting ring forms a placement area for the workpiece to be welded, and the through groove is at least partially formed on the periphery of the limiting ring.

[0011] Preferably, the main body is provided with a plurality of connection holes;

[0012] The clamp positioning components are provided in several groups, and each group of clamp positioning components includes a positioning plate and a connecting post;

[0013] The positioning plate is used to engage with the slot, and the connecting post is fixed to one end face of the positioning plate and forms a detachable connection with the connecting hole.

[0014] The positioning plates of the fixture positioning components in different groups have different shapes.

[0015] Preferably, the fixture positioning element further includes a deformation layer;

[0016] The deformation layer covers the outer wall of the connecting column.

[0017] Preferably, at least two outer wall surfaces of the deformed layers partially protrude to form protrusions;

[0018] A groove is formed on the connecting hole corresponding to the protrusion to cooperate with the protrusion.

[0019] Preferably, the connecting column includes a shaft, a first arc body, and a second arc body;

[0020] One end of the shaft is fixedly connected to the positioning plate via the first arc body, and the other end is fixedly connected to the second arc body;

[0021] The minimum diameter of the first arc body is not less than that of the shaft body, and one end of the connecting hole has an arc port that abuts against the arc surface of the first arc body;

[0022] The minimum diameter of the second arc body is not less than that of the shaft body.

[0023] Preferably, the connecting column has a threaded section on the side away from the positioning plate, and the threaded section is threadedly connected to an axial limiting block;

[0024] The axial limiting block abuts against the side of the main body away from the positioning plate.

[0025] Preferably, the limiting ring is a circular ring;

[0026] The portion of the outer wall of the limiting ring that connects with the through groove is an arc surface, and the central angle of the arc surface ranges from 120° to 270°.

[0027] Preferably, the positioning part of the workpiece to be welded further includes a connecting rod, and is fixedly connected to the main body through the connecting rod;

[0028] The side of the connecting rod away from the through groove is provided with a notch.

[0029] Preferably, there are two connecting rods, and the two connecting rods are symmetrically arranged about the limiting ring.

[0030] Preferably, both the limiting ring and the connecting rod are made of stainless steel, special heat-resistant steel, or ceramic materials.

[0031] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0032] One of the solutions described above utilizes the engagement and positioning between the fixture positioning element and the slot. This achieves two key benefits: firstly, it ensures proper positioning of the welding fixture and the panel, aligning the positioning part of the workpiece to be welded (specifically, the area enclosed by its limiting rings and the workpiece placement area) with the pre-set mounting position of the workpiece, increasing its positioning accuracy; secondly, it facilitates the welding of the fixture and panel after the workpiece is welded, preventing any impact on processing efficiency. Furthermore, the through-slot is at least partially formed around the limiting ring. This reduces the weight of the main body, thereby simplifying the assembly of the welding fixture and increasing processing efficiency. It also promotes heat dissipation from the limiting ring, extending its lifespan and preventing deformation that could affect its positioning accuracy. Attached Figure Description

[0033] To more clearly illustrate the specific embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0034] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present invention.

[0035] Figure 2 for Figure 1 An enlarged view of position D1 in the middle.

[0036] Figure 3 for Figure 1 A schematic diagram of the structure from another perspective.

[0037] Figure 4 for Figure 3 A schematic diagram of the section along section AA.

[0038] Figure 5 for Figure 4 An enlarged view of position D2 in the middle.

[0039] Figure 6 for Figure 4 Enlarged diagram of position D3 in the middle.

[0040] Figure 7 This is a schematic diagram of the structure of Embodiment 2 provided by this utility model.

[0041] Figure 8 for Figure 7 A cross-sectional diagram.

[0042] Figure 9 for Figure 8 Enlarged diagram of position D4 in the middle.

[0043] Explanation of reference numerals in the attached figures:

[0044] 1. Main body; 11. Connecting hole; 111. Groove; 112. Arc-shaped port; 2. Fixture positioning component; 21. Positioning plate; 22. Connecting column; 221. Shaft; 222. First arc-shaped body; 223. Second arc-shaped body; 23. Deformation layer; 231. Protrusion; 24. Threaded section; 25. Axial limiting block; 3. Positioning part of the workpiece to be welded; 31. Limiting ring; 32. Through groove; 33. Connecting rod; 34. Notch; 4. Placement area of ​​the workpiece to be welded; 5. Gap. Detailed Implementation

[0045] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0046] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0047] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 utility model based on the specific circumstances.

[0048] Example 1

[0049] See Figures 1 to 6 This utility model provides a welding fixture for an elevator external call box. The elevator external call box includes a panel with holes and slots and a preset mounting position for the workpiece to be welded. The welding fixture includes a main body 1, a fixture positioning member 2, and a workpiece positioning part 3.

[0050] Specifically, the fixture positioning part 2 is installed on the main body 1 and is used to engage with the slot for positioning; the part to be welded positioning part 3 is located on the main body 1 and is set one-to-one with the preset installation position of the part to be welded; the part to be welded positioning part 3 includes a limiting ring 31 and a through groove 32, the inner side of the limiting ring 31 forms the part to be welded placement area 4, and the through groove 32 is opened at least on a partial periphery of the limiting ring 31.

[0051] It is easy to understand that in the above scheme, the engagement and positioning between the fixture positioning element 2 and the slot allows for the positioning of the welding fixture and the panel, ensuring that the positioning part 3 of the workpiece to be welded (specifically, the area with the workpiece to be placed enclosed by its limiting ring 31) is aligned with the preset mounting position of the workpiece, increasing the positioning accuracy of the workpiece. Furthermore, it facilitates the welding of the fixture and panel after the workpiece is welded, avoiding any impact on processing efficiency. In addition, the through groove 32 is at least partially formed on the periphery of the limiting ring 31. This helps reduce the weight of the main body 1, thereby reducing the assembly difficulty of the welding fixture and increasing processing efficiency. It also facilitates heat dissipation of the limiting ring 31, increasing its service life and preventing deformation that could affect its positioning accuracy.

[0052] Furthermore, the main body 1 is provided with several connecting holes 11; the fixture positioning component 2 is provided with several groups, each group of fixture positioning components 2 includes a positioning plate 21 and a connecting post 22; the positioning plate 21 is used to engage with the slot, and the connecting post 22 is fixed on one end face of the positioning plate 21 and forms a detachable connection with the connecting hole 11; the positioning plate 21 of different groups of fixture positioning components 2 has different shapes.

[0053] It is easy to understand that by replacing different sets of fixture positioning parts 2, the main body 1 and the positioning part 3 of the part to be welded located on the main body 1 can be adapted to different types of panels, that is, to different models of elevator call boxes. For example, in this embodiment, when the hole slot is rectangular, the positioning plate 21 is set to be rectangular.

[0054] See Figures 3 to 6 The fixture positioning component 2 also includes a deformation layer 23; the deformation layer 23 covers the outer wall of the connecting column 22. The connecting column 22 and the deformation layer 23 cooperate with each other, which on the one hand facilitates the disassembly and replacement of the entire fixture positioning component 2, and on the other hand helps to increase the stability of the installation of the fixture positioning component 2 and the main body 1, and avoids the fixture positioning component 2 from shaking relative to the main body 1, thus affecting the positioning accuracy.

[0055] Furthermore, to facilitate the installation of the fixture positioning element 2, the outer wall surfaces of the two deformable layers 23 partially protrude to form protrusions 231; grooves 111 that cooperate with the protrusions 231 are formed on the connecting holes 11 corresponding to the protrusions 231. Of course, in other embodiments, the outer wall surfaces of multiple deformable layers 23 can all protrude to form protrusions 231, and corresponding grooves 111 can also be formed on their connecting holes 11.

[0056] Furthermore, the connecting column 22 includes a shaft 221, a first arc 222, and a second arc 223. One end of the shaft 221 is fixedly connected to the positioning plate 21 via the first arc 222, and the other end is fixedly connected to the second arc 223. The minimum diameter of the first arc 222 is not less than that of the shaft 221, and one end of the connecting hole 11 has an arc port 112 that abuts against the arc surface of the first arc 222. The minimum diameter of the second arc 223 is not less than that of the shaft 221, which can increase the convenience and stability of the installation of the clamp positioning component 2 and the main body 1. At the same time, the setting of the first arc 222 can form a gap 5 between the positioning plate 21 and the main body 1, which facilitates the replacement of the clamp positioning component 2 on the main body 1.

[0057] See Figure 1 and Figure 2 The limiting ring 31 is a circular ring; the part of the outer wall of the limiting ring 31 that connects with the through groove 32 is an arc surface, and the central angle corresponding to the arc surface can be set to 180°, 120°, 150°, 210° or 270°. It can be understood that the value range of the central angle corresponding to the arc surface can be 120°-270°.

[0058] Furthermore, the positioning part 3 for the part to be welded also includes a connecting rod 33, and is fixedly connected to the main body 1 through the connecting rod 33; the side of the connecting rod 33 away from the through groove 32 is provided with a notch 34.

[0059] Furthermore, there are two connecting rods 33, and the two connecting rods 33 are symmetrically arranged about the limiting ring 31.

[0060] Furthermore, both the limit ring 31 and the connecting rod 33 are made of stainless steel, special heat-resistant steel, or ceramic materials.

[0061] Example 2

[0062] See Figures 7 to 9 Based on the above embodiment one, the difference in this embodiment is that when the holes and slots are two spaced apart, the positioning plate 21 is provided with two matching circular plates.

[0063] Furthermore, since the welding fixture needs to be separated from the panel after each processing, in order to avoid repeated disassembly and assembly causing axial displacement of the fixture positioning component 2, in this embodiment, a threaded section 24 is provided on the side of the connecting column 22 away from the positioning plate 21. The threaded section 24 is threadedly connected to an axial limiting block 25; the axial limiting block 25 abuts against the end face of the main body 1 away from the positioning plate 21. That is, no other features are provided. Figure 5 and Figure 6 The second circular arc 223 in the middle.

[0064] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A welding fixture for an elevator external call box, the elevator external call box including a panel, the panel having slots and preset mounting positions for the parts to be welded; Its features are, It includes the main body (1), the fixture positioning component (2), and the positioning part of the part to be welded (3); The clamp positioning component (2) is installed on the main body (1) and is used to engage and position with the slot. The positioning part (3) of the workpiece to be welded is located on the main body (1) and is set one by one with the preset installation position of the workpiece to be welded; The positioning part (3) for the workpiece to be welded includes a limiting ring (31) and a through groove (32). The inner side of the limiting ring (31) forms a placement area (4) for the workpiece to be welded. The through groove (32) is opened at least on a local periphery of the limiting ring (31).

2. The welding fixture for an elevator external call box according to claim 1, characterized in that, The main body (1) is provided with a plurality of connecting holes (11); The clamp positioning component (2) is provided in several groups, and each group of the clamp positioning component (2) includes a positioning plate (21) and a connecting post (22); The positioning plate (21) is used to engage with the slot, and the connecting post (22) is fixed on one end face of the positioning plate (21) and forms a detachable connection with the connecting hole (11); The positioning plates (21) of the fixture positioning members (2) in different groups have different shapes.

3. The welding fixture for an elevator external call box according to claim 2, characterized in that, The clamp positioning element (2) also includes a deformation layer (23); The deformation layer (23) covers the outer wall of the connecting column (22).

4. A welding fixture for an elevator external call box according to claim 3, characterized in that, At least two of the outer wall surfaces of the deformed layers (23) protrude locally to form protrusions (231); The connecting hole (11) corresponding to the protrusion (231) has a groove (111) that cooperates with the protrusion (231).

5. A welding fixture for an elevator external call box according to claim 2, characterized in that, The connecting column (22) includes a shaft (221), a first arc body (222), and a second arc body (223); One end of the shaft (221) is fixedly connected to the positioning plate (21) via the first arc body (222), and the other end is fixedly connected to the second arc body (223); The minimum diameter of the first arc body (222) is not less than that of the shaft body (221), and one end of the connecting hole (11) has an arc port (112) that abuts against the arc surface of the first arc body (222); The minimum diameter of the second arc body (223) is not less than that of the shaft body (221).

6. A welding fixture for an elevator external call box according to claim 2, characterized in that, The connecting column (22) is provided with a threaded section (24) on the side away from the positioning plate (21), and the threaded section (24) is threadedly connected to an axial limiting block (25); The axial limiting block (25) abuts against the side end face of the main body (1) away from the positioning plate (21).

7. A welding fixture for an elevator external call box according to claim 1, characterized in that, The limiting ring (31) is configured as a circular ring; The portion of the outer wall of the limiting ring (31) that connects with the through groove (32) is an arc surface, and the central angle of the arc surface ranges from 120° to 270°.

8. A welding fixture for an elevator external call box according to claim 7, characterized in that, The positioning part (3) of the workpiece to be welded also includes a connecting rod (33), and is fixedly connected to the main body (1) through the connecting rod (33); The side of the connecting rod (33) away from the through groove (32) is provided with a notch (34).

9. A welding fixture for an elevator external call box according to claim 8, characterized in that, The connecting rod (33) has two parts, and the two connecting rods (33) are symmetrically arranged about the limiting ring (31).

10. A welding fixture for an elevator external call box according to claim 8 or 9, characterized in that, The limiting ring (31) and the connecting rod (33) are both made of stainless steel, special heat-resistant steel or ceramic materials.

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