A manufacturing method of a thin-wall sector arc plate structure locking plate

Abstract

The application provides a manufacturing method of a thin-wall fan-shaped arc plate structure locking plate, and the method comprises the following steps: selecting a whole circular steel pipe to process a size corresponding to the length direction of the locking plate body in the axial direction; processing locking groove hole units on the whole circular steel pipe, X>=2; cutting X pieces of the locking plate body with the locking groove hole units on the whole circular steel pipe by using a wire cutting; mounting the single piece of the locking plate body with the locking groove hole units on a tooling after processing, and processing a spiral groove unit. The tooling comprises a tooling shaft, four positioning pieces for clamping and positioning the tooling shaft and the locking plate body, and at least one V-shaped block for supporting the tooling shaft. The application selects the processing route of "length direction size processing-X pieces of the locking plate locking groove hole unit processing-cutting X pieces-single piece of the locking plate spiral groove unit processing", which not only meets the installation requirements of the locking plate, but also meets the size precision of the locking plate, and successfully solves the manufacturing problem of the thin-wall fan-shaped arc plate structure locking plate.

Description

Technical Field

[0001] This invention relates to the field of locking plate processing technology, and in particular to a method for manufacturing a thin-walled fan-shaped arc plate structure locking plate. Background Technology

[0002] The primary function of a locking plate is to fix and lock the connection between two components. Commonly used locking plates are flat and easy to manufacture. On some devices, the locking plate connecting two devices is a fan-shaped arc plate structure. The fan-shaped arc plate locking plate is a special type of locking plate, shaped like a fan, used to connect devices at different angles. Although the fan-shaped arc plate locking plate has the same function and application as commonly used locking plates, its shape allows it to adapt to different needs and constraints.

[0003] To ensure the positional and dimensional accuracy of the locking plate in the fan-shaped arc plate structure during metal sheet manufacturing, certain measures are needed to position it. However, for thinner fan-shaped arc plate structure locking plates, clamping and positioning become difficult during processing. This difficulty in clamping leads to a failure to guarantee the dimensional accuracy of the thinner fan-shaped arc plate structure.

[0004] In view of this, it is necessary to study a manufacturing method for a thin-walled fan-shaped arc plate structure locking plate to solve the problem that the accuracy of the thinner fan-shaped arc plate structure locking plate cannot be guaranteed. Summary of the Invention

[0005] This invention provides a manufacturing method for a thin-walled fan-shaped arc plate structure locking plate. The method adopts a processing route of "length direction dimension processing - locking groove hole unit processing of X locking plates - cutting into individual parts - spiral groove unit processing of single locking plates". This method not only meets the installation requirements of the locking plate, but also meets the dimensional accuracy of the locking plate, and successfully solves the manufacturing problem of the thin-walled fan-shaped arc plate structure locking plate.

[0006] The technical solution for achieving the objective of this invention is as follows:

[0007] On one hand, the present invention provides a method for manufacturing a thin-walled fan-shaped arc plate structure locking plate. The thin-walled fan-shaped arc plate structure locking plate includes: a locking plate body having a thin-walled fan-shaped arc plate structure, a locking slot unit formed in the locking plate body for connecting a first device, and a spiral groove unit provided in the locking plate body for connecting a second device. The manufacturing method includes:

[0008] Step 1: Select a round steel pipe and machine it along the axial direction to the dimensions corresponding to the length of the locking plate body;

[0009] Step 2: Machining locking slot units on the whole round steel pipe corresponding to the locking slot unit positions of X thin-walled fan-shaped arc plate structure locking plates, where X≥2;

[0010] Step 3: The locking plate body with locking slots is machined into X parts by wire cutting from the whole round steel pipe;

[0011] Step 4: After the locking plate body with locking slot hole unit is installed in the tooling, the spiral groove unit is machined.

[0012] This invention employs a processing route of "length direction dimension machining - locking slot hole unit machining of X locking plates - cutting into individual parts - spiral groove unit machining of a single locking plate," which satisfies both the installation requirements and the dimensional accuracy of the locking plates, successfully solving the manufacturing problem of locking plates for thin-walled fan-shaped arc plate structures. More specifically, this invention uses a single steel pipe to first ensure the length direction dimension of the locking plate body, providing a reference benchmark for the precise positioning of the subsequent machining of the locking slot hole unit and spiral groove unit. This invention uses a single steel pipe to simultaneously machine the locking slot hole units on the X locking plate bodies, which facilitates precise control of the positional and dimensional accuracy of the locking slot hole units using machine tools. This invention fits the locking plate body into the tooling and uses the locking slot hole units to position and fix both, facilitating the machining of the spiral groove unit and solving the problem of difficult clamping and positioning of locking plates for thin-walled fan-shaped arc plate structures.

[0013] Based on this aspect, in one possible implementation, step one further includes:

[0014] Machining the outer and inner circumferential surfaces of a round steel pipe, controlling the machining accuracy of the outer circumferential surface to be consistent with the design accuracy of the outer circumferential surface, and the machining accuracy of the inner circumferential surface to be higher than the design accuracy of the inner circumferential surface;

[0015] Among them, the design accuracy of the outer circumference is higher than that of the inner circumference.

[0016] Since the first device and the outer fan-shaped wall of the locking plate body are in contact, the design accuracy of the outer circumferential surface of the locking plate body is higher than that of the inner circumferential surface. When machining the spiral groove unit, the contact between the outer circumferential surface and the first device is transformed into contact between the inner circumferential surface and the tooling. To ensure the machining accuracy of the spiral groove unit, the machining accuracy of the inner circumferential surface must be higher than the design accuracy of the inner circumferential surface.

[0017] Based on this aspect, in one possible implementation, step one further includes:

[0018] Before finishing the axial length, outer circumference and inner circumference of the round steel pipe, the round steel pipe is first rough-machined, tempered, semi-finished and aged.

[0019] This invention involves rough machining and tempering of a round steel pipe, followed by semi-finishing of the inner and outer circumferential surfaces. A heat aging treatment is then performed to stabilize the microstructure of the blank. The dividing and axial reference surfaces of a thin-walled fan-shaped arc plate locking plate are milled on the end face of the round steel pipe, and the inner and outer circumferential surfaces are then finished. This ensures the accuracy between the locking slot unit and the angled fan-shaped surface.

[0020] Based on this aspect, in one possible implementation, step two further includes:

[0021] Each locking slot unit includes two locking slots, which are machined obliquely to the corresponding locking plate body position of the round steel pipe.

[0022] Based on this aspect, in one possible implementation, step three further includes:

[0023] When wire cutting the X-piece locking plate body, the width dimension of the locking plate body is initially guaranteed;

[0024] Before and after machining the spiral groove unit in step four, the end face of the locking plate body in the width direction is milled to ensure that the width dimension of the locking plate body meets the design tolerance.

[0025] In order to avoid the width dimension of the locking plate body failing to meet the design tolerance during wire cutting, the present invention adds a milling process on the end face of the locking plate body in the width direction with the help of tooling before and after machining the spiral groove unit in step four to ensure that the width dimension meets the tolerance.

[0026] Based on this aspect, in one possible implementation, step four further includes:

[0027] The inner fan-shaped wall of the locking plate body fits against the outer peripheral wall of the tooling, and the locking plate body and the tooling are fixed by the locking slot unit.

[0028] Based on this aspect, in one possible implementation, step four further includes:

[0029] Install the locking plate body using tooling;

[0030] The tooling and locking plate body are placed on two parallel V-shaped irons of equal height and aligned according to the tooling.

[0031] The spiral groove of the spiral groove unit is machined using a saw blade milling cutter. The saw blade is adjusted to the direction of the helix angle of the tooth groove, and the groove shape of the spiral groove unit is milled according to the spiral line.

[0032] On the other hand, the present invention provides a tooling for a thin-walled fan-shaped arc plate structure locking plate, the tooling being the tooling described in step four above, comprising:

[0033] A tooling shaft for clamping the locking plate body, the outer peripheral wall of the tooling shaft is in contact with the inner arc surface of the locking plate body, the peripheral wall of the tooling shaft is provided with 2*(2+n) mounting holes corresponding to the locking plate slot, n≥0, the length of the tooling shaft is less than the length of the locking plate body, and at least one end of the locking plate body extends beyond the tooling shaft along the length direction.

[0034] The tooling shaft and the locking plate body are clamped and positioned by four positioning components. Each positioning component passes through the locking plate slot and is fixed to the mounting hole. Each positioning component is in contact with the hole wall at the end of the locking plate slot.

[0035] At least one V-block is used to support the tooling shaft, the tooling shaft being placed in the V-block to avoid the locking plate body.

[0036] This invention uses the machined locking plate slot as a reference to clamp and position the tooling shaft and the locking plate body after the inner wall of the locking plate body is attached to the tooling shaft, thus solving the problem of difficult clamping of the locking plate.

[0037] On the other hand, in one possible implementation, two sets of 2*(2+n) mounting holes are provided on the tooling shaft;

[0038] Two sets of 2*(2+n) mounting holes are set opposite each other.

[0039] On the other hand, in one possible implementation, a set of 2*(2+n) mounting holes are provided with continuous baffles on both sides along the tooling axis, and the locking plate body is located between the two continuous baffles.

[0040] Another set of 2*(2+n) mounting holes has a continuous stop bar added on one side along the tooling axis, and a clearance groove is opened on the other side along the tooling axis. The clearance groove avoids the milling cutter on the end face of the locking plate body in the width direction.

[0041] On the other hand, in one possible implementation, n=1, and the 2*3 mounting holes are divided into two groups, with 3 mounting holes in each group;

[0042] In each group of three mounting holes, the centers of two adjacent mounting holes have an included angle;

[0043] After the locking plate body is turned around along its length, it is clamped again onto the tooling shaft.

[0044] On the other hand, in one possible implementation, n=0, and the 2*2 mounting holes are divided into two groups, with 2 mounting holes in each group;

[0045] The centers of the two mounting holes in each group have an included angle.

[0046] Compared with the prior art, the beneficial effects of the present invention are:

[0047] This invention adopts a processing route of "length direction dimension processing - locking groove hole unit processing of X-piece locking plates - cutting into individual parts - spiral groove unit processing of single locking plates", which not only meets the installation requirements of locking plates, but also meets the dimensional accuracy of locking plates, and successfully solves the manufacturing problem of locking plates for thin-walled fan-shaped arc plate structures. Attached Figure Description

[0048] Figure 1 A flowchart illustrating a manufacturing method for a thin-walled fan-shaped arc plate structure locking plate provided by the present invention;

[0049] Figure 2 A diagram of the locking plate body with locking slots processed for step three, X parts;

[0050] Figure 3 A simplified tooling diagram of a locking plate for processing a thin-walled fan-shaped arc plate structure provided by the present invention when n=0;

[0051] Figure 4 A simplified tooling diagram of a locking plate for processing a thin-walled fan-shaped arc plate structure provided by the present invention when n=1;

[0052] Figure 5 The diagram shows the tooling shaft structure provided by this invention when n=0;

[0053] Figure 6 The tooling shaft structure diagram provided by this invention is shown when n=1;

[0054] Figure 7 A three-dimensional schematic diagram of the locking plate of the thin-walled fan-shaped arc plate structure of the unprocessed spiral groove unit provided by the present invention;

[0055] Figure 8 A schematic diagram of the locking plate of the thin-walled fan-shaped arc plate structure after the spiral groove unit has been processed according to the present invention;

[0056] Figure 9 This is a schematic diagram of the V-shaped block provided by the present invention;

[0057] Figure 10 A tooling shaft structure with added standard retaining strips and clearance grooves provided for the present invention is illustrated in Figure 1.

[0058] Figure 11 Figure 2 shows the tooling shaft structure with added general stop bars and clearance grooves provided for the present invention;

[0059] In the figure, 1-tooling shaft; 2-V-block; 3-locking plate body; 4-locking plate slot; 5-mounting hole; 6-hole wall at the end; 7-spiral groove unit; 8-axial through hole; 9-through stop bar; 10-clearance groove; 11-scale line. Detailed Implementation

[0060] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings. However, it should be noted that these embodiments are not intended to limit the present invention. Equivalent changes or substitutions in function, method, or structure made by those skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0061] In the description of this embodiment, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this solution 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. Therefore, they should not be construed as limitations on this solution.

[0062] Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this solution, unless otherwise stated, "multiple" means two or more.

[0063] The terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of these terms in this solution based on the specific circumstances.

[0064] The locking plate used in a certain device is a fan-shaped arc plate structure. It is high-precision, thin, and cannot be installed and positioned, making it difficult to guarantee the relative positional relationship between the slot and the fan-shaped end face. The spiral groove is difficult to machine. Due to the difficulty in clamping and positioning a single piece, the dimensional accuracy of the workpiece cannot be guaranteed. To solve this problem, this tooling was designed and improved through continuous exploration, increasing processing efficiency and ensuring the final accuracy of the product. Similar manufacturing methods cannot be used as a reference. The manufacturing difficulties lie in: a) the inability to install and position the workpiece during processing; b) the difficulty in guaranteeing the relative accuracy between the slot and the angled fan-shaped end face; and c) the difficulty in machining the spiral groove. The solutions studied in various embodiments of this invention are as follows: Example

[0065] This invention provides a method for manufacturing a thin-walled fan-shaped arc plate structure locking plate. Please refer to [link / reference]. Figure 7 and Figure 8 The thin-walled fan-shaped arc plate structure locking plate includes: a locking plate body 3 with a thin-walled fan-shaped arc plate structure; a locking slot unit formed in the locking plate body for connecting to a first device; and a spiral groove unit 7 provided in the locking plate body for connecting to a second device. Please refer to [link to relevant documentation]. Figure 1 and Figure 2 The manufacturing methods include:

[0066] Step 1: Select a round steel pipe and machine it along the axial direction to the dimensions corresponding to the length of the locking plate body;

[0067] Step 2: Machining locking slot units on the whole round steel pipe corresponding to the locking slot unit positions of X thin-walled fan-shaped arc plate structure locking plates, where X≥2;

[0068] Step 3: The locking plate body with locking slots is machined into X parts by wire cutting from the whole round steel pipe;

[0069] Step 4: After the locking plate body with locking slot hole unit is installed in the tooling, the spiral groove unit is machined.

[0070] This invention employs a processing route of "length direction dimension machining - locking slot hole unit machining of X locking plates - cutting into individual parts - spiral groove unit machining of a single locking plate," which satisfies both the installation requirements and the dimensional accuracy of the locking plates, successfully solving the manufacturing problem of locking plates for thin-walled fan-shaped arc plate structures. More specifically, this invention uses a single steel pipe to first ensure the length direction dimension of the locking plate body, providing a reference benchmark for the precise positioning of the subsequent machining of the locking slot hole unit and spiral groove unit. The 672C invention embodiment uses a single steel pipe to simultaneously machine the locking slot hole units on the X locking plate bodies, which facilitates precise control of the positional and dimensional accuracy of the locking slot hole units using machine tools. This invention fits the locking plate body into the tooling and uses the locking slot hole unit to position and fix both, facilitating the machining of the spiral groove unit and solving the problem of difficult clamping and positioning of locking plates for thin-walled fan-shaped arc plate structures.

[0071] The preferred step of the manufacturing method of the thin-walled fan-shaped arc plate structure locking plate described above further includes: machining the outer circumferential surface and the inner circumferential surface of the whole circular steel pipe, controlling the machining accuracy of the outer circumferential surface to be consistent with the design accuracy of the outer circumferential surface, and the machining accuracy of the inner circumferential surface to be higher than the design accuracy of the inner circumferential surface; wherein: the design accuracy of the outer circumferential surface is higher than the design accuracy of the inner circumferential surface.

[0072] Since the first device and the outer fan-shaped wall of the locking plate body are in contact, the design accuracy of the outer circumferential surface of the locking plate body is higher than that of the inner circumferential surface. In the embodiment of the present invention, when machining the spiral groove unit, the contact between the outer circumferential surface and the first device is transformed into the contact between the inner circumferential surface and the tooling. To ensure the machining accuracy of the spiral groove unit, the machining accuracy of the inner circumferential surface must be higher than the design accuracy of the inner circumferential surface.

[0073] The preferred step of the manufacturing method of the thin-walled fan-shaped arc plate structure locking plate mentioned above further includes: before finishing the axial length, outer circumference and inner circumference of the whole round steel pipe, roughing, tempering, semi-finishing and aging treatment of the whole round steel pipe.

[0074] In this embodiment of the invention, the steel pipe is rough-machined and tempered in its original circular state. The inner and outer circumferential surfaces are then semi-finished. A heat aging treatment is then performed to stabilize the microstructure of the blank. The dividing reference surface and axial reference surface of the thin-walled fan-shaped arc plate locking plate structure are milled on the end face of the circular steel pipe, and the inner and outer circumferential surfaces are then finish-machined. This ensures the accuracy between the locking slot unit and the angled fan-shaped surface.

[0075] The preferred step two of the manufacturing method of the thin-walled fan-shaped arc plate structure locking plate described above further includes: each locking slot unit includes two locking slots, and the two locking slots are obliquely machined at the position of the locking plate body corresponding to the whole round steel pipe.

[0076] The manufacturing method of the thin-walled fan-shaped arc plate structure locking plate described above, preferably includes step three further: when wire cutting the X locking plate body, the width dimension of the locking plate body is initially guaranteed; before and after machining the spiral groove unit in step four, the end face of the locking plate body in the width direction is milled to ensure that the width dimension of the locking plate body meets the design tolerance again.

[0077] In order to avoid the width dimension of the locking plate body failing to meet the design tolerance during wire cutting, in step four, before and after machining the spiral groove unit, a milling process is added to the end face of the locking plate body in the width direction to ensure that the width dimension meets the tolerance.

[0078] The preferred step four of the manufacturing method of the thin-walled fan-shaped arc plate structure locking plate described above further includes: the inner fan-shaped wall of the locking plate body is attached to the outer peripheral wall of the tooling, and the locking plate body and the tooling are fixed by the locking slot unit.

[0079] The preferred step four of the above-mentioned method for manufacturing a thin-walled fan-shaped arc plate structure locking plate further includes: installing the locking plate body using a tooling; placing the tooling and the locking plate body on two parallel V-shaped irons of equal height and aligning them according to the tooling; using a saw blade milling cutter to process the spiral groove of the spiral groove unit, adjusting the saw blade in the direction of the helical helix angle of the tooth groove, and milling the groove shape of the spiral groove unit according to the spiral line.

[0080] The embodiments of the present invention adopt the processing route of "length direction dimension processing - locking groove hole unit processing of X locking plates - cutting into individual parts - spiral groove unit processing of single locking plates", which not only meets the installation requirements of locking plates, but also meets the dimensional accuracy of locking plates, and successfully solves the manufacturing problem of locking plates for thin-walled fan-shaped arc plate structures.

[0081] This invention, through specific processing steps and the use of specially designed tooling, successfully solves the manufacturing problem of locking plates. Its features include: a) Employing specific manufacturing steps and tooling improves the stability of the workpiece material, ensures the stability of the processing system, and creates the fundamental conditions for processing the part. b) Using specific tooling facilitates the installation and positioning of the workpiece, reliably identifies the processing positions of the fan-shaped end faces at defined angles, and ensures the spatial relationship between the workpiece slots and each fan-shaped end face. c) In particular, when processing multiple workpieces sequentially, the auxiliary time for repositioning and clamping is significantly reduced, resulting in a substantial improvement in manufacturing efficiency. d) This tooling can also be extended to process locking plates with symmetrical structures, improving the utilization rate of the tooling. Example

[0082] Based on the scheme disclosed in Embodiment 1, this embodiment provides a tooling for a thin-walled fan-shaped arc plate structure locking plate. Please refer to [link / reference needed]. Figure 3 , Figure 4 , Figure 5 and Figure 6 The tooling is the tooling of step four above, including: a tooling shaft 1 for clamping the locking plate body 3, four positioning parts for clamping and positioning the tooling shaft 1 and the locking plate body, and at least one V-block 2 for supporting the tooling shaft 1. The outer peripheral wall of the tooling shaft 1 is in contact with the inner arc surface of the locking plate body. The peripheral wall of the tooling shaft 1 has 2*(2+n) mounting holes 5 corresponding to the locking plate slot 4, where n≥0. The length of the tooling shaft 1 is less than the length of the locking plate body, and at least one end of the locking plate body extends beyond the tooling shaft 1 along the length direction. Each positioning part passes through the locking plate slot 4 and is fixed with the mounting hole 5. Each positioning part contacts the hole wall 6 at the end of the locking plate slot 4. The tooling shaft 1 is placed on the V-block 2, avoiding the locking plate body.

[0083] In this embodiment of the invention, the tooling shaft 1 is attached to the inner wall of the locking plate body, and the pre-machined locking plate slot 4 is used as a reference to achieve the clamping and positioning of the tooling shaft 1 and the locking plate body, thus solving the problem of difficult clamping of the locking plate.

[0084] For the tooling of the aforementioned thin-walled fan-shaped arc plate structure locking plate, please refer to [link / reference needed]. Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 9 and Figure 10 The preferred tooling shaft 1 has two sets of 2*(2+n) mounting holes 5; the two sets of 2*(2+n) mounting holes 5 are arranged opposite to each other.

[0085] For the manufacturing method of the aforementioned thin-walled fan-shaped arc plate structure locking plate, please refer to [further details]. Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 9 and Figure 10 Preferably, a set of 2*(2+n) mounting holes 5 has a continuous stop bar 9 added on both sides along the tooling shaft 1, and the locking plate body is located between the two continuous stop bars 9; another set of 2*(2+n) mounting holes 5 has a continuous stop bar 9 added on one side along the tooling shaft 1, and a clearance groove 10 is opened on the other side along the tooling shaft 1, which avoids the milling cutter on the end face of the locking plate body in the width direction.

[0086] For the tooling of the aforementioned thin-walled fan-shaped arc plate structure locking plate, please refer to [link / reference needed]. Figure 3 , Figure 4 , Figure 5 and Figure 6 Preferably, n=1, and the 2*3 mounting holes 5 are divided into two groups, with 3 mounting holes 5 in each group; in each group of three mounting holes 5, the centers of two adjacent mounting holes 5 have an included angle; after the locking plate body is turned around in the length direction, it is clamped again on the tooling shaft 1. In this embodiment of the invention, the centers of the two pairs of adjacent mounting holes 5 in each of the two groups are set to an included angle. Based on the positioning of the locking plate body, the locking plate body can be turned around in the length direction and clamped again to realize the processing of both ends of the locking plate body in the length direction.

[0087] For the tooling of the aforementioned thin-walled fan-shaped arc plate structure locking plate, please refer to [link / reference needed]. Figure 3 , Figure 4 , Figure 5 and Figure 6 Preferably, n=0, and the 2*2 mounting holes 5 are divided into two groups, with 2 mounting holes 5 in each group; the centers of the two mounting holes 5 in each group have an included angle. In this embodiment of the invention, the centers of the two mounting holes 5 in each group are set to an included angle, which can not only locate the locking plate body in the length direction, but also in the width direction.

[0088] For the tooling of the aforementioned thin-walled fan-shaped arc plate structure locking plate, please refer to [link / reference needed]. Figure 3 , Figure 4 , Figure 5 and Figure 6 Preferably, the spiral groove unit 7 is machined at the end of the locking plate body that extends beyond the tooling shaft 1. In this embodiment of the invention, the locking plate groove hole 4 on the locking plate body that connects to the first device is used as the clamping and positioning reference for machining the spiral groove unit 7, which does not affect the machining of the spiral groove unit 7, and can fix the locking plate body and the tooling shaft 1 in place.

[0089] For the tooling of the aforementioned thin-walled fan-shaped arc plate structure locking plate, please refer to [link / reference needed]. Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 10 and Figure 11Preferably, the tooling shaft 1 has an axial through hole 8; the positioning element passes through the mounting hole 5 to connect the fastener, and the fastener is located inside the axial through hole 8. In this embodiment of the invention, the axial through hole 8 allows the fastener to be placed below the mounting hole 5 through the axial through hole 8, thereby achieving the connection between the fastener and the positioning element. Preferably, the axial end face of the tooling shaft 1 has multiple scale lines; the multiple scale lines have included angles. In this embodiment of the invention, after the inner wall of the locking plate body is fitted with the tooling shaft 1, the pre-machined locking plate slot 4 is used as a reference to achieve the clamping and positioning of the tooling shaft 1 and the locking plate body, solving the problem of difficult clamping of the locking plate.

[0090] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. All equivalent embodiments or modifications made without departing from the spirit of the present invention should be included within the scope of protection of the present invention.

[0091] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0092] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A method for manufacturing a thin-walled fan-shaped arc plate structure locking plate, the thin-walled fan-shaped arc plate structure locking plate comprising: The locking plate body has a thin-walled fan-shaped arc plate structure, a locking slot unit formed in the locking plate body for connecting a first device, and a spiral groove unit formed in the locking plate body for connecting a second device, characterized in that the manufacturing method includes: Step 1: Select a whole round steel pipe and machine the corresponding dimension along the length direction of the locking plate body. Use this dimension along the length direction as the reference for the subsequent overall machining of the locking slot unit. Step 2: With the whole round steel pipe in an uncut state, simultaneously process the locking slot unit at the corresponding X thin-walled fan-shaped arc plate structure locking plate position, X≥2; Step 3: The locking plate body with locking slots is machined into X parts by wire cutting from the whole round steel pipe; Step 4: When installing the locking plate body with the locking slot unit into the tooling, use the already machined locking slot unit as a reference to fix the locking plate body to the tooling, and then machine the spiral groove unit. Step one also includes: Machining the outer and inner circumferential surfaces of a round steel pipe, controlling the machining accuracy of the outer circumferential surface to be consistent with the design accuracy of the outer circumferential surface, and the machining accuracy of the inner circumferential surface to be higher than the design accuracy of the inner circumferential surface; Among them, the design accuracy of the outer circumferential surface is higher than that of the inner circumferential surface. Step three also includes: When wire cutting the X-piece locking plate body, the width dimension of the locking plate body is initially guaranteed; Before and after machining the spiral groove unit in step four, the end face of the locking plate body in the width direction is milled to ensure that the width dimension of the locking plate body meets the design tolerance. It also includes a tooling for the thin-walled fan-shaped arc plate structure locking plate in the above steps. The tooling includes: a tooling shaft for clamping the locking plate body, the outer peripheral wall of the tooling shaft is in contact with the inner arc surface of the locking plate body, the peripheral wall of the tooling shaft is provided with 2*(2+n) mounting holes corresponding to the locking plate slot hole position, n≥0, the length of the tooling shaft is less than the length of the locking plate body, and at least one end of the locking plate body extends beyond the tooling shaft along the length direction. The tooling shaft and the locking plate body are clamped and positioned by four positioning components. Each positioning component passes through the locking plate slot and is fixed to the mounting hole. Each positioning component is in contact with the hole wall at the end of the locking plate slot. At least one V-block is used to support the tooling shaft, the tooling shaft being placed in the V-block to avoid the locking plate body.

2. The manufacturing method of a thin-walled fan-shaped arc plate structure locking plate according to claim 1, characterized in that, Step one also includes: Before finishing the axial length, outer circumference and inner circumference of the round steel pipe, the round steel pipe is first rough-machined, tempered, semi-finished and aged.

3. The manufacturing method of a thin-walled fan-shaped arc plate structure locking plate according to claim 1, characterized in that, Step two also includes: Each locking slot unit includes two locking slots, which are machined obliquely to the corresponding locking plate body position of the round steel pipe.

4. The manufacturing method of a thin-walled fan-shaped arc plate structure locking plate according to claim 1, characterized in that, Step four also includes: The inner fan-shaped wall of the locking plate body fits against the outer peripheral wall of the tooling, and the locking plate body and the tooling are fixed by the locking slot unit.

5. The manufacturing method of a thin-walled fan-shaped arc plate structure locking plate according to claim 4, characterized in that, Step four also includes: Install the locking plate body using tooling; The tooling and locking plate body are placed on two parallel V-shaped irons of equal height and aligned according to the tooling. The spiral groove of the spiral groove unit is machined using a saw blade milling cutter. The saw blade is adjusted to the direction of the helix angle of the tooth groove, and the groove shape of the spiral groove unit is milled according to the spiral line.

6. The manufacturing method of a thin-walled fan-shaped arc plate structure locking plate according to claim 1, characterized in that, The tooling shaft has two sets of 2*(2+n) mounting holes; Two sets of 2*(2+n) mounting holes are set opposite each other.

7. The manufacturing method of a thin-walled fan-shaped arc plate structure locking plate according to claim 1, characterized in that, A set of 2*(2+n) mounting holes has two continuous stop bars added along the axial direction of the tooling shaft on both sides, and the locking plate body is located between the two continuous stop bars; Another set of 2*(2+n) mounting holes has a continuous stop bar added on one side along the tooling axis, and a clearance groove is opened on the other side along the tooling axis. The clearance groove avoids the milling cutter on the end face of the locking plate body in the width direction.

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