A high-precision stepless adjusting circular arc wire releasing device

By combining and modularly splicing equal arc laying modules, the problem of traditional laying devices being unable to achieve efficient and precise construction is solved. This enables rapid, accurate, and efficient construction of arc laying, making it suitable for high-precision construction in the field of landscape architecture.

CN224395370UActive Publication Date: 2026-06-23GUANGDONG PROVINCE COMM PLANNING & DESIGN INST

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG PROVINCE COMM PLANNING & DESIGN INST
Filing Date
2025-06-11
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Traditional circular arc surface layout devices cannot simultaneously meet the requirements of efficient construction and precise arc lines, resulting in poor construction results.

Method used

Using an equal-arc laying module, the spring steel plate achieves stepless adjustment and precise bending through a combination structure of central shaft rod, outer shell, guide groove, end side rod, Y-direction rotating shaft, linkage gear, connector, central shaft bearing, end side bearing and spring steel plate. Combined with multiple modular splicing, it can construct arc surface structures with different bending radii and directions.

Benefits of technology

It achieves rapid, accurate, and efficient construction of arc-shaped layout, suitable for the high-precision construction needs in the field of landscape architecture, improving construction efficiency and reducing costs.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a kind of high-precision stepless adjustment's arc-shaped pay-off device, equal arc pay-off module with middle shaft bar, shell, guide groove piece, two end side bar, Y direction rotating shaft, linkage gear, connecting piece, middle shaft bearing, two end side bearings and spring steel plate are adopted, two end side bearings can be fulcrumed with middle shaft bearing and force-acting on the two sides of spring steel plate, to bend spring steel plate, the bending radius of spring steel plate can be steplessly adjusted to drawing radius, realize the quick and accurate pay-off of arc shape, and spring steel plate can be used as arc surface template, with the advantages of simultaneously taking into account efficient and arc line precision.And, by setting multiple equal arc pay-off modules and using module connecting piece to assemble into one, the modularization splicing of multiple equal arc pay-off modules is realized, different bending radius and continuous, smooth arc surface structure can be quickly constructed, and complex curved surface structure containing different bending directions can also be constructed.
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Description

Technical Field

[0001] This utility model relates to a wire feeding tool, specifically a high-precision stepless adjustable arc-shaped wire feeding device. Background Technology

[0002] In modern landscape design, elements such as curved garden paths, curved planting beds, curved paving in plazas, irregularly shaped walls, and hyperboloid shapes in decorative projects are increasingly favored. These elements not only enhance the aesthetics of the landscape but also imbue the site with a unique sense of space and artistry. However, the construction of these elements often faces challenges such as the high precision required for the curves, which are difficult to achieve accurately, ultimately leading to unsatisfactory final results.

[0003] Traditional arc-shaped surface layout devices, such as Chinese patent applications with publication / announcement numbers CN201896443U, CN102191856A, and CN114319035A, all have the following shortcomings: they cannot simultaneously meet the requirements of efficient construction and precise arc lines. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a high-precision stepless adjustable arc-shaped wire feeding device.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] like Figure 1 and Figure 2 As shown, a high-precision stepless adjustable arc-shaped wire feeding device is characterized by comprising: an equal arc wire feeding module;

[0007] The structure of the equal arc laying module is as follows: a housing with a central shaft is fixed to a guide groove with an X-direction groove and an X-direction rack at each end. The housing is slidably engaged with two end-side rods, each with a Z-direction groove and a Z-direction rack, along the Z-direction. The upper ends of the end-side rods protrude through slots on the top surface of the housing. The X-direction groove and Z-direction groove on the same side are simultaneously rolled with a Y-direction rotating shaft. Each Y-direction rotating shaft is fixedly fitted with a rack that simultaneously engages with the X-direction rack. The linkage gear meshes with the rack in the Z direction, wherein the X, Y, and Z directions are mutually perpendicular; and the lower end of the central shaft member is fixedly connected to the inner ring of the central shaft bearing through a connector, and the lower ends of the two end side members are each fixedly connected to the inner ring of an end side bearing through a connector. The two end side bearings are symmetrically arranged about the central shaft bearing located on the central axis of the central shaft member. The outer rings of the central shaft bearing and the two end side bearings are fixedly connected to the spring steel plate, and the two end side bearings are located at the two side edges of the spring steel plate.

[0008] Therefore, the usage and working principle of this utility model are as follows:

[0009] First, see Figure 1 and Figure 2 Fix the outer shell of the equal arc laying module to the ground;

[0010] Then, see Figure 3 and Figure 4 By pushing two end rods along the Z direction, under the constraint of the Y direction rotation axis, and in conjunction with the meshing of the X-direction rack and Z-direction rack of the linkage gear, the two end rods move synchronously along the X direction. This causes the two end bearings to apply force to both sides of the spring steel plate with the central shaft bearing as the fulcrum, thereby bending the spring steel plate. The bending radius of the spring steel plate can be infinitely adjusted to the drawing radius, achieving rapid and accurate arc-shaped layout, and the spring steel plate can be used as an arc-shaped template.

[0011] Finally, the bending radius of the spring steel plate is locked, and it is used as a template for concrete pouring. As the concrete cools and shrinks, it will naturally separate from the spring steel plate.

[0012] Preferably, the dimensions of the spring steel plate are set to 3.5mm wide * 200mm long * 1mm thick (65Mn), which allows the bending radius of the spring steel plate to be reduced from... Figure 1 and Figure 2 infinitely large stepless adjustment to Figure 4 160mm.

[0013] The central shaft member can be installed in the following ways: the central shaft member is fixed inside the outer casing; or the central shaft member is provided with a Z-direction guide groove, and a Y-direction guide shaft is fixed inside the outer casing, with the Y-direction guide shaft and the Z-direction guide groove slidingly engaged along the Z-direction.

[0014] Therefore, with the central shaft fixed inside the housing, by pushing the two end members along the Z direction, it is possible to... Figure 3 and Figure 4 That's how you bend the spring steel plate in the forward direction.

[0015] When the central shaft and the housing slide in the Z direction, it can achieve the following: Figure 3 and Figure 4 By bending the spring steel plate in the positive direction, the central axis member can be pushed along the Z-direction, which in turn drives the two end members to move synchronously along the X and Z directions via the spring steel plate. Figure 3 and Figure 4 The spring steel plate is bent in the opposite direction to achieve arc-shaped laying with different convex directions.

[0016] Preferably, the two ends of the Y-direction rotating shaft pass through the X-direction guide grooves located on the front and rear faces of the housing, respectively, and the two ends of the Y-direction rotating shaft that pass through the housing are threadedly connected to nuts.

[0017] Therefore, by loosening the nut, the bending radius of the spring steel plate can be easily adjusted, and after adjustment, the bending radius of the spring steel plate can be locked by tightening the nut.

[0018] Preferably, the outer casing is provided with a grounding fixing hole.

[0019] Therefore, the outer shell of the arc-laying module can be directly fixed to the ground by inserting a grounding rod through the grounding hole, and the outer shell of the arc-laying module can be fixed to the ground support frame by fixing a fixing steel nail through the grounding hole.

[0020] Preferably, the guide groove has receiving grooves at both ends and on the end side rods, the X-direction slide groove and the Z-direction slide groove are respectively provided on the end face of the corresponding receiving groove, and the X-direction rack and the Z-direction rack are respectively provided on the side of the corresponding receiving groove; the linkage gear is simultaneously accommodated in the receiving grooves of the guide groove and the end side rods, so as to make the structure more compact and reduce the volume of the outer shell.

[0021] Preferably, the central shaft, outer shell, guide groove and end side members are all made of stainless steel, and the spring steel plate is made of high carbon steel plate with a thickness between 0.8mm and 1mm, so as to ensure the hardness required for its use as a template, while also ensuring the flexibility required for its bending.

[0022] As a preferred embodiment of this utility model: a laser rangefinder is installed inside the outer shell to measure the distance between the two end-side rods and the Z-direction movement distance of the end-side rods, so as to provide measurement data for calculating the bending radius of the arc formed by the bending of the spring steel plate.

[0023] The bending radius of the arc formed by bending the spring steel plate can be calculated using the following formula:

[0024] R = (L 2 / 8h)+(h / 2);

[0025] In the formula, R represents the bending radius of the arc formed by bending the spring steel plate, L represents the chord length of the arc formed by bending the spring steel plate, which is the distance between the two end members, and h represents the arch height of the arc formed by bending the spring steel plate, which is the Z-direction movement distance of the end member.

[0026] Preferably, the housing is equipped with a display screen for displaying the chord length, arch height, and bending radius of the arc formed by the bending of the spring steel plate.

[0027] The central shaft and end side members may also be equipped with scales to facilitate faster adjustment by staff.

[0028] As a preferred embodiment of this utility model: Figure 5 and Figure 6 As shown, the arc-shaped wire feeding device is provided with at least two equal arc wire feeding modules. Each equal arc wire feeding module is arranged sequentially along the X direction. Adjacent equal arc wire feeding modules are assembled into one unit through module connectors. The outer shells of adjacent equal arc wire feeding modules are staggered in the Y direction to avoid mutual interference when bending the spring steel plate.

[0029] Thus, modular splicing of multiple equal-arc laying modules is realized, which can quickly construct continuous and smooth arc surface structures with different bending radii. Furthermore, when the central shaft and the outer shell slide in the Z direction, complex curved surface structures with different bending directions can also be constructed.

[0030] Preferably, the outer ring of the end-side bearing is provided with several Y-direction connecting through holes, and the module connector is a Y-direction connecting rod. The assembly of two adjacent equal arc laying modules is achieved by passing the Y-direction connecting through holes of two adjacent equal arc laying modules through the Y-direction connecting rod.

[0031] Therefore, by inserting and removing the Y-direction connecting rod, the two equal arc laying modules can be quickly assembled and disassembled, improving construction efficiency, reducing construction difficulty and cost, and increasing overall efficiency by 50%.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] First, this utility model adopts an equal arc laying module consisting of a central shaft rod 1, a housing 2, a guide groove 3, two end side rods 4, a Y-direction rotating shaft 5, a linkage gear 6, a connector 7, a central shaft bearing 8, two end side bearings 9, and a spring steel plate 10. This module enables the two end side bearings 9 to apply force to both sides of the spring steel plate 10 with the central shaft bearing 8 as the fulcrum, thereby bending the spring steel plate 10. The bending radius of the spring steel plate 10 can be infinitely adjusted to the radius of the drawing, achieving rapid and accurate arc laying. Furthermore, the spring steel plate 10 can be used as an arc surface template, possessing the advantages of both high efficiency and accurate arc lines. It is suitable for the high-precision construction needs of arc lines in the field of landscape architecture.

[0034] Secondly, by setting a Z-direction guide groove 1a and a Y-direction guide shaft 11, this utility model enables the central shaft member 1 and the outer shell 2 to slide in the Z-direction, thus achieving... Figure 3 and Figure 4 Bending the spring steel plate 10 in the forward direction in that way also allows for... Figure 3 and Figure 4The spring steel plate 10 is bent in the opposite direction to achieve arc-shaped laying with different protrusion directions.

[0035] Third, by setting up multiple equal arc laying modules and assembling them into one unit with module connectors, this utility model realizes the modular splicing of multiple equal arc laying modules, which can quickly construct continuous and smooth arc surface structures with different bending radii. Furthermore, when the central shaft 1 and the outer shell 2 slide in the Z direction, it can also construct complex curved surface structures with different bending directions. Attached Figure Description

[0036] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments:

[0037] Figure 1 This is a three-dimensional structural diagram of the medium arc laying module of this utility model;

[0038] Figure 2 This is a schematic diagram of the planar structure of the medium arc laying module of this utility model;

[0039] Figure 3 This is a schematic diagram of the medium arc laying module of this utility model when bending a spring steel plate;

[0040] Figure 4 This is a schematic diagram of the medium arc laying module of this utility model when the spring steel plate is bent to the minimum full radius;

[0041] Figure 5 This is a schematic diagram of the arc-shaped wire feeding device of the present invention, which includes two equal arc wire feeding modules;

[0042] Figure 6 for Figure 5 The diagram shows the structure of the arc-shaped wire feeding device during operation. Detailed Implementation

[0043] The present invention will now be described in detail with reference to the embodiments and accompanying drawings to help those skilled in the art better understand the inventive concept of the present invention. However, the scope of protection of the claims of the present invention is not limited to the following embodiments. For those skilled in the art, all other embodiments obtained without creative effort without departing from the inventive concept of the present invention are within the scope of protection of the present invention.

[0044] In the description of this utility model, it should be clarified that the directional terms "front," "back," "top," and "bottom" are only relative concepts in terms of location. They are used to facilitate the description of this utility model or to simplify the description, and are not intended to indicate or imply a specific location that this utility model must have. Therefore, they should not be construed as limitations on this utility model.

[0045] Example 1

[0046] like Figure 1 and Figure 2 As shown, the present invention discloses a high-precision stepless adjustable arc-shaped wire feeding device, including: an equal arc wire feeding module;

[0047] The structure of the equal arc laying module is as follows: the outer shell 2, on which the central shaft member 1 is installed, is fixed to the guide groove member 3, which has an X-direction sliding groove 3a and an X-direction rack 3b at both ends respectively. The outer shell 2 is slidably engaged with two end side members 4, each with a Z-direction sliding groove 4a and a Z-direction rack 4b, along the Z-direction. The upper end of the end side member 4 protrudes through the slot 2a on the top surface of the outer shell 2. The X-direction sliding groove 3a and the Z-direction sliding groove 4a on the same side are simultaneously rolled with a Y-direction rotating shaft 5. Each Y-direction rotating shaft 5 is fixedly sleeved with a part that is simultaneously rolled with the X-direction rack 4b. The linkage gear 6 meshes with rack 3b and rack 4b in the Z direction, wherein the X, Y and Z directions are perpendicular to each other; and the lower end of the central shaft member 1 is fixedly connected to the inner ring of the central shaft bearing 8 through the connector 7, and the lower ends of the two end side members 4 are each fixedly connected to the inner ring of an end side bearing 9 through the connector 7. The two end side bearings 9 are symmetrically arranged about the central shaft bearing 8 located on the central axis of the central shaft member 1. The outer rings of the central shaft bearing 8 and the two end side bearings 9 are fixedly connected to the spring steel plate 10, and the two end side bearings 9 are located at the two side edges of the spring steel plate 10.

[0048] Therefore, the usage and working principle of this utility model are as follows:

[0049] First, see Figure 1 and Figure 2 Fix the outer shell 2 of the equal arc laying module to the ground;

[0050] Then, see Figure 3 and Figure 4 By pushing the two end rods 4 along the Z direction, under the constraint of the Y-direction rotating shaft 5, and in conjunction with the meshing of the X-direction rack 3b and Z-direction rack 4b of the linkage gear 6, the two end rods 4 are driven to move synchronously along the X direction. This causes the two end bearings 9 to apply force to both sides of the spring steel plate 10 with the central shaft bearing 8 as the fulcrum, so as to bend the spring steel plate 10. This allows the bending radius of the spring steel plate 10 to be infinitely adjusted to the drawing radius, achieving rapid and accurate arc-shaped line laying, and enabling the spring steel plate 10 to be used as an arc-shaped template.

[0051] Finally, the bending radius of the spring steel plate 10 is locked, and it is used as a template for concrete pouring. When the concrete cools and shrinks, it can naturally separate from the spring steel plate 10.

[0052] Preferably, the dimensions of the spring steel plate 10 are set to 3.5mm wide * 200mm long * 1mm thick (65Mn), which allows the bending radius of the spring steel plate 10 to be reduced from... Figure 1 and Figure 2 infinitely large stepless adjustment to Figure 4 160mm.

[0053] The above is the basic implementation method of this embodiment one, and further optimizations, improvements and limitations can be made based on this basic implementation method:

[0054] The installation method of the central shaft member 1 can be: the central shaft member 1 is fixed inside the outer shell 2; or the central shaft member 1 is provided with a Z-direction guide groove 1a, and a Y-direction guide shaft 11 is fixed inside the outer shell 2, and the Y-direction guide shaft 11 and the Z-direction guide groove 1a slide in the Z direction.

[0055] Therefore, with the central shaft member 1 fixed inside the outer casing 2, by pushing the two end members 4 along the Z direction, it is possible to... Figure 3 and Figure 4 In that case, the spring steel plate 10 is bent in the forward direction.

[0056] When the central shaft member 1 and the outer casing 2 slide in the Z direction, it can achieve the following: Figure 3 and Figure 4 By bending the spring steel plate 10 in the positive direction, the central shaft member 1 can be pushed along the Z direction, which in turn drives the two end-side members 4 to move synchronously along the X and Z directions via the spring steel plate 10. Figure 3 and Figure 4 The spring steel plate 10 is bent in the opposite direction to achieve arc-shaped laying with different protrusion directions.

[0057] Preferably, the two ends of the Y-direction rotating shaft 5 pass through the X-direction guide grooves 2b located on the front and rear faces of the housing 2, respectively, and the two ends of the Y-direction rotating shaft 5 that pass through the housing 2 are threadedly connected to nuts.

[0058] Therefore, by loosening the nut, the bending radius of the spring steel plate 10 can be easily adjusted, and after adjustment, the bending radius of the spring steel plate 10 can be locked by tightening the nut.

[0059] Preferably, the outer casing 2 is provided with a grounding fixing hole 2c.

[0060] Therefore, the outer shell 2 of the arc-laying module can be directly fixed to the ground by inserting the grounding rod through the grounding fixing hole 2c, and the outer shell 2 of the arc-laying module can be fixed to the ground support frame by fixing the fixing steel nail through the grounding fixing hole 2c.

[0061] Preferably, the guide groove 3 has receiving grooves at both ends and the end side rods 4. The X-direction sliding groove 3a and the Z-direction sliding groove 4a are respectively provided on the end face of the corresponding receiving groove, and the X-direction rack 3b and the Z-direction rack 4b are respectively provided on the side of the corresponding receiving groove. The linkage gear 6 is simultaneously accommodated in the receiving grooves of the guide groove 3 and the end side rods 4, so as to make the structure more compact and reduce the volume of the outer shell 2.

[0062] Preferably, the central shaft member 1, the outer shell 2, the guide groove member 3, and the end side member 4 are all made of stainless steel, and the spring steel plate 10 is made of high carbon steel plate with a thickness between 0.8mm and 1mm, so as to ensure the hardness required for its use as a template, while also ensuring the flexibility required for its bending.

[0063] Example 2

[0064] Based on the above embodiment one, this embodiment two also adopts the following preferred implementation method:

[0065] The housing 2 is equipped with a laser rangefinder 12 for measuring the distance between the two end rods 4 and the Z-direction movement distance of the end rods 4, so as to use the measurement data to calculate the bending radius of the arc formed by the bending of the spring steel plate 10.

[0066] The bending radius of the arc formed by bending the spring steel plate 10 can be calculated according to the following formula:

[0067] R = L 2 / 8h+h / 2;

[0068] In the formula, R represents the bending radius of the arc formed by the bending of the spring steel plate 10, L represents the chord length of the arc formed by the bending of the spring steel plate 10, which is also the distance between the two end side members 4, and h represents the arch height of the arc formed by the bending of the spring steel plate 10, which is also the Z-direction movement distance of the end side member 4.

[0069] The above is the basic implementation method of this embodiment two, and further optimizations, improvements and limitations can be made based on this basic implementation method:

[0070] Preferably, the outer casing 2 is equipped with a display screen 13 for displaying the chord length, arch height and bending radius of the arc formed by the bending of the spring steel plate 10.

[0071] The central shaft member 1 and the end side member 4 may also be equipped with scales to facilitate faster adjustment by the staff.

[0072] Example 3

[0073] Based on the above embodiment one or embodiment two, this embodiment three also adopts the following preferred implementation method:

[0074] like Figure 5 and Figure 6 As shown, the arc-shaped wire feeding device is provided with at least two equal arc wire feeding modules. Each equal arc wire feeding module is arranged sequentially along the X direction. Adjacent equal arc wire feeding modules are assembled into one unit through module connectors. The outer shells 2 of adjacent equal arc wire feeding modules are staggered in the Y direction to avoid mutual interference when bending the spring steel plate 10.

[0075] Thus, modular splicing of multiple equal-arc laying modules is realized, which can quickly construct continuous and smooth arc surface structures with different bending radii. Furthermore, when the central shaft 1 and the outer shell 2 slide in the Z direction, complex curved surface structures with different bending directions can also be constructed.

[0076] The above is the basic implementation method of this embodiment three, and further optimizations, improvements and limitations can be made based on this basic implementation method:

[0077] Preferably, the outer ring of the end bearing 9 is provided with a plurality of Y-direction connecting through holes, and the module connector is a Y-direction connecting rod. The assembly of two adjacent equal arc laying modules is achieved by passing the Y-direction connecting through holes of two adjacent equal arc laying modules through the Y-direction connecting rod.

[0078] Therefore, by inserting and removing the Y-direction connecting rod, the two equal arc laying modules can be quickly assembled and disassembled, improving construction efficiency, reducing construction difficulty and cost, and increasing overall efficiency by 50%.

[0079] This utility model is not limited to the specific embodiments described above. Based on the above content and in accordance with the common technical knowledge and conventional methods in the field, without departing from the basic technical idea of ​​this utility model, other equivalent modifications, substitutions or alterations can be made to this utility model, all of which fall within the protection scope of this utility model.

Claims

1. A high-precision, steplessly adjustable arc-shaped wire feeding device, characterized in that, include: Equal arc laying module; The structure of the equal arc laying module is as follows: the outer shell (2) with the central shaft rod (1) is fixed to the guide groove (3) with an X-direction sliding groove (3a) and an X-direction rack (3b) respectively at both ends, and the outer shell (2) is slidably engaged with two end side rods (4) each with a Z-direction sliding groove (4a) and a Z-direction rack (4b) in the Z direction, and the upper end of the end side rod (4) protrudes from the slot (2a) on the top surface of the outer shell (2); the X-direction sliding groove (3a) and the Z-direction sliding groove (4a) on the same side are simultaneously rolled with a Y-direction rotating shaft (5), and each Y-direction rotating shaft (5) is fixedly sleeved with a rack that is simultaneously engaged with the X-direction rack. (3b) and the Z-direction rack (4b) mesh with the linkage gear (6), wherein the X, Y and Z directions are perpendicular to each other; and the lower end of the central shaft member (1) is fixedly connected to the inner ring of the central shaft bearing (8) through the connector (7), and the lower ends of the two end side members (4) are each fixedly connected to the inner ring of an end side bearing (9) through the connector (7). The two end side bearings (9) are symmetrically arranged about the central shaft bearing (8) located on the central axis of the central shaft member (1). The outer rings of the central shaft bearing (8) and the two end side bearings (9) are fixedly connected to the spring steel plate (10), and the two end side bearings (9) are located at the two side edges of the spring steel plate (10).

2. The high-precision stepless adjustable arc-shaped wire feeding device according to claim 1, characterized in that: The central shaft (1) is provided with a Z-direction guide groove (1a), and a Y-direction guide shaft (11) is fixed inside the outer shell (2). The Y-direction guide shaft (11) and the Z-direction guide groove (1a) slide in the Z direction.

3. The high-precision stepless adjustable arc-shaped wire feeding device according to claim 1, characterized in that: The two ends of the Y-direction rotating shaft (5) pass through the X-direction guide grooves (2b) located on the front and rear faces of the housing (2), respectively, and the two ends of the Y-direction rotating shaft (5) that pass through the housing (2) are threadedly connected to nuts.

4. The high-precision stepless adjustable arc-shaped wire feeding device according to claim 1, characterized in that: The outer casing (2) is provided with a grounding fixing hole (2c).

5. The high-precision stepless adjustable arc-shaped wire feeding device according to claim 1, characterized in that: The guide groove (3) has receiving grooves at both ends and on the end side rod (4). The X-direction slide groove (3a) and the Z-direction slide groove (4a) are respectively set on the end face of the corresponding receiving groove. The X-direction rack (3b) and the Z-direction rack (4b) are respectively set on the side of the corresponding receiving groove. The linkage gear (6) is simultaneously accommodated in the receiving grooves of the guide groove (3) and the end side rod (4).

6. The high-precision stepless adjustable arc-shaped wire feeding device according to claim 1, characterized in that: The central shaft member (1), the outer shell (2), the guide groove member (3) and the end side member (4) are all made of stainless steel, and the spring steel plate (10) is made of high carbon steel plate with a thickness between 0.8 mm and 1 mm.

7. The high-precision stepless adjustable arc-shaped wire feeding device according to any one of claims 1 to 6, characterized in that: The housing (2) is equipped with a laser rangefinder (12) for measuring the distance between the two end rods (4) and the Z-direction movement distance of the end rods (4).

8. The high-precision stepless adjustable arc-shaped wire feeding device according to claim 7, characterized in that: The outer casing (2) is equipped with a display screen (13).

9. The high-precision stepless adjustable arc-shaped wire feeding device according to any one of claims 1 to 6, characterized in that: The arc-shaped wire feeding device is provided with at least two equal arc wire feeding modules. Each equal arc wire feeding module is arranged sequentially along the X direction. Adjacent equal arc wire feeding modules are assembled into one unit through module connectors, and the outer shells (2) of adjacent equal arc wire feeding modules are staggered in the Y direction.

10. The high-precision stepless adjustable arc-shaped wire feeding device according to claim 9, characterized in that: The outer ring of the end bearing (9) is provided with several Y-direction connecting through holes. The module connector is a Y-direction connecting rod. The assembly of two adjacent equal arc laying modules is achieved by passing the Y-direction connecting through holes of two adjacent equal arc laying modules through the Y-direction connecting rod.