Groove cutting device and method for linear cutting

Abstract

The invention belongs to the field of machining, and discloses a groove cutting device and method for linear cutting, the device comprises a base, a polygonal overturning body and a multi-station mandrel, the polygonal overturning body is arranged on the base, and linear cutting of parts in different angular directions can be achieved through overturning; the end face of the multi-station core shaft is provided with a plurality of stations which are arranged in an array mode, when the multi-station core shaft is overturned to any angular direction of the groove type nut to be machined, a plurality of columns of stations are formed, and each column of stations at least comprises two stations; after a pair of grooves are machined, clamping does not need to be conducted again, only the polygonal overturning body needs to be overturned, and therefore machining of the groove type nut in other angular directions is achieved. By the adoption of the device, linear cutting of a plurality of parts can be completed at a time, the requirement for batch production is met, and the machining efficiency is greatly improved; in addition, due to the fact that the stations of the device are arranged in an array mode in a special mode, in the linear cutting process, only the polygonal overturning body needs to be overturned, and angular adjustment of the multiple parts can be achieved at a time.

Description

Technical Field

[0001] The invention belongs to the field of mechanical processing, specifically to the field of wire cutting processing, and in particular to a grooving device and method for wire cutting. Background Art

[0002] The current status of slot nuts widely used in the aviation industry still faces many challenges, especially in terms of improving production efficiency and maintaining high precision. The design feature of this type of slot nut is usually that there are 6 slots evenly distributed on the end face. This structure not only requires extremely high manufacturing precision, but also puts forward strict requirements on production efficiency due to its diverse specifications and large demand.

[0003] The traditional processing method of slot nuts mostly adopts a single-piece processing mode, which is inadequate in the face of large-scale production needs; especially for six-slot nuts, the formation of the slots needs to go through three clamping operations during the processing of each part, which not only increases the complexity of workers' operations, but also significantly prolongs the invalid operation time, such as clamping, positioning, adjustment, etc. These operations occupy a large amount of production time, resulting in a huge waste of time cost; in addition, frequent clamping also increases the risk of parts damage, affects the overall quality consistency of the finished product, and further aggravates the lag in production progress. It can be seen that the existing processing methods can no longer meet the needs of modern aviation manufacturing industry for efficient and high-quality production, and have become a key factor restricting production efficiency and cost control.

[0004] It can be seen that for the wire cutting processing of the slot nuts, the existing processing method can only process one slot nut at a time and requires multiple clamping of the parts, resulting in low processing efficiency and seriously affecting the production progress. Summary of the invention

[0005] The present invention provides a grooving device and method for wire cutting to solve the technical problem that in wire cutting processing of slot nuts, only one slot nut can be processed at a time and multiple clamping of parts is required, resulting in low processing efficiency and seriously affecting production progress.

[0006] In order to achieve the above object, the present invention adopts the following technical contents: A grooving device for wire cutting, comprising a base; A polygonal flip body, which is arranged on the base and can realize wire cutting of different angular directions of the slotted nut to be processed by flipping the polygonal flip body; A multi-station mandrel, which is inserted and fixed on the polygonal flip body and arranged parallel to the base; the end face of the multi-station mandrel is provided with a plurality of stations arranged in an array; wherein, when the multi-station mandrel is flipped to any angular direction of the slotted nut to be processed, a plurality of columns of stations are formed, and each column of stations includes at least two stations; the stations of the multi-station mandrel are used for installing the slotted nut to be processed.

[0007] Furthermore, a positioning boss is arranged on the base; the polygonal flip body comprises a plurality of positioning surfaces, and each positioning surface is provided with a positioning groove matched with the positioning boss.

[0008] Furthermore, the polygonal flip body adopts a directional three-party sleeve; a hole for inserting the multi-station core shaft is opened inside the directional three-party sleeve; the directional three-party sleeve and the multi-station core shaft are fixed by a threaded connection.

[0009] Furthermore, the directional three-party sleeve includes three positioning surfaces, which are arranged at 120° between any two adjacent positioning surfaces; a cross groove is provided on each positioning surface; a T-shaped boss is provided on the base; when the directional three-party sleeve is flipped to any positioning surface as the bottom surface, the cross groove of the corresponding positioning surface forms a positioning fit with the T-shaped boss.

[0010] Furthermore, the workstations on the end surface of the multi-workstation mandrel are arranged in a hexagonal matrix, wherein a workstation is arranged on each vertex of the hexagon and a workstation is arranged on the geometric center.

[0011] Furthermore, the workstation adopts a boss structure, the shape of which corresponds to the shape of the inner hole of the slot nut to be processed; when the wire cutting operation is performed, the slot nut to be processed is sleeved and fixed on the boss structure.

[0012] Furthermore, the workstation adopts a convex column structure, and an alignment mark is provided on the end of the multi-station mandrel close to the workstation, and the alignment mark is used for alignment during wire cutting operation.

[0013] Furthermore, a polygonal turning body and a multi-station mandrel inserted in the polygonal turning body are respectively provided at both ends of the base, and a through hole for fixing to the cutting table is opened in the middle of the base.

[0014] A wire cutting method for a slotted nut, based on the above-mentioned wire cutting slotting device, comprises: Insert the multi-station mandrel into the polygonal turning body and fix it; Installing a plurality of slotted nuts to be processed on the stations of the multi-station mandrel; Place the polygon flip body on the base; The wire cutting operation is performed on the slot nuts to be processed on each row of workstations in turn to complete the wire cutting of one angle of the slot nuts to be processed; The polygonal flip body is flipped over, the wire cutting direction remains unchanged, and the wire cutting operation is performed on the slotted nuts to be processed on each row of workstations in turn; Repeat the above-mentioned polygonal flipping body flipping process and wire cutting operation until the wire cutting of each angular direction of the slot nut to be processed is completed.

[0015] Further, the multi-station mandrel is inserted into the directional three-way sleeve so that the alignment mark on the multi-station mandrel is parallel to the base and perpendicular to the wire cutting wire. After alignment, the multi-station mandrel and the directional three-way sleeve are fixed with a clamping screw; Install the end faces of multiple slotted nuts to be processed closely to the bottom surface of the multi-station mandrel; Performing wire cutting operation on the slotted nuts to be processed on each row of workstations in turn to achieve the first pair of slot processing; Flip the directional three-way sleeve 120 degrees, and then perform wire cutting operations on the slotted nuts to be processed on each row of workstations in turn to realize the processing of the second pair of slots; Continue to flip the directional three-way sleeve 120 degrees, and continue to perform wire cutting operations on the slot nuts to be processed on each row of workstations in turn to realize the processing of the third pair of slots, and obtain multiple hexagonal slot nuts.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The invention provides a grooving device for wire cutting, which comprises a base, a polygonal flip body and a multi-station mandrel. The polygonal flip body is arranged on the base, and can realize wire cutting of parts in different angular directions by flipping. The end face of the multi-station mandrel is provided with a plurality of stations arranged in an array, and when the multi-station mandrel is flipped to any angular direction of a slot nut to be processed, a plurality of rows of stations are formed, and each row of stations includes at least two stations. After completing the processing of a pair of slots, it is not necessary to re-clamp, and only the polygonal flip body needs to be flipped, thereby realizing the processing of other angular directions of the slot nut. Moreover, the device can complete the wire cutting of multiple parts at one time, meet the needs of mass production, and greatly improve the processing efficiency. In addition, since the stations of the device are arranged in an array in a special way, during the wire cutting process, it is not necessary to flip the parts to adjust the slot angular direction, and only the polygonal flip body needs to be flipped, so that the angular direction adjustment of multiple parts can be realized at one time, and the center position remains unchanged, the processed parts have high precision and stable quality, the operation error is reduced, and the processing quality of the product is guaranteed. The device has a simple structure and principle, is easy to operate and maintain, and has good promotion and application value.

[0017] Preferably, in the present invention, by providing a positioning boss on the base and opening a positioning groove matching the positioning boss on each positioning surface of the polygonal flip body, the stability and accuracy of the polygonal flip body on the base are ensured, thereby improving the processing accuracy.

[0018] Preferably, in the present invention, a directional three-sided sleeve is used as the polygonal turning body, and the multi-station core shaft is fixed by a threaded connection, so that the device structure is more compact and stable, and easy to disassemble and replace, thereby improving the versatility and flexibility of the device.

[0019] Further preferably, in the present invention, the design of the directional three-sided sleeve includes three positioning surfaces, each of which is provided with a cross groove to form a positioning fit with the T-shaped boss on the base, thereby further improving the positioning accuracy and stability of the polygonal flip body on the base and ensuring the processing quality.

[0020] Preferably, in the present invention, the workstations on the end face of the multi-station mandrel are arranged in a hexagonal matrix, which optimizes the workstation layout, improves space utilization, and allows more nuts to be processed at the same time, further improving production efficiency; here, the arrangement can be made in multiples of 6, and the principle is the same as that of the hexagonal matrix, which can maximize the processing efficiency while ensuring the processing quality.

[0021] Preferably, in the present invention, the workstation adopts a convex column structure corresponding to the shape of the inner hole of the slotted nut to be processed, thereby ensuring the stability and accuracy of the nut on the workstation, avoiding shaking and deviation during processing, and improving the processing quality.

[0022] Preferably, in the present invention, an alignment mark is provided on the end of the multi-station mandrel close to the station, which facilitates alignment during wire cutting operations, ensures the accuracy of the cutting direction, and improves processing accuracy and efficiency.

[0023] Preferably, in the present invention, a polygonal flip body and a multi-station core shaft inserted in the polygonal flip body are respectively provided at both ends of the base, so that the device can perform bidirectional wire cutting operations simultaneously, further improving the processing efficiency; and the through hole opened in the middle of the base is convenient for fixing with the cutting table, thereby improving the stability and processing efficiency of the device.

[0024] The present invention also provides a method for wire cutting of slot nuts, based on the above-mentioned slot cutting device for wire cutting, by inserting and fixing a multi-station mandrel into a polygonal flip body, and then installing a plurality of slot nuts to be processed on the stations of the multi-station mandrel, and then placing the polygonal flip body on a base, and sequentially performing wire cutting operations on the nuts on each station, after completing one angular cutting, flipping the polygonal flip body and keeping the wire cutting direction unchanged, and continuing to cut the nuts on each station until all angular cuttings are completed. The use of this method not only improves the processing efficiency, so that multiple nuts can be wire cut at the same time, but also by flipping the polygonal flip body, processing in different angular directions can be easily achieved, greatly enhancing the flexibility and adaptability of processing, thereby meeting the needs of wire cutting of different slot nuts, and improving the overall processing quality and production efficiency.

[0025] Preferably, in the present invention, accurate positioning of the multi-station mandrel is ensured by using alignment marks, thereby ensuring processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic structural diagram of a wire cutting groove cutting device provided in an embodiment of the present invention; Figure 2 An exploded view of a wire cutting groove cutting device provided in an embodiment of the present invention; Figure 3 A side view of a wire cutting groove cutting device provided by an embodiment of the present invention; Figure 4 A schematic structural diagram of a multi-station mandrel of a wire cutting grooving device provided in an embodiment of the present invention; Figure 5 A front view of a multi-station mandrel of a wire cutting grooving device provided by an embodiment of the present invention; Figure 6 A schematic structural diagram of a hexagonal slot nut of a wire cutting slotting device provided in an embodiment of the present invention; Figure 7 A cross-sectional view of a hexagonal slot nut of a wire cutting slotting device provided in an embodiment of the present invention; Figure 8 A schematic diagram of a wire cutting wire trajectory of a wire cutting grooving device provided in an embodiment of the present invention.

[0027] Reference numerals: 1. Base; 2. Directional three-way sleeve; 3. Multi-position mandrel; 4. Clamping screw; 5. Slot nut to be processed; 6. Hexagonal slot nut. DETAILED DESCRIPTION

[0028] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail in the following specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0032] In the description of the embodiments of the present invention, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use, it is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0033] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0034] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] Example 1 In combination with the background technology mentioned above, the end faces of slot nuts for aviation are mostly 6 evenly distributed slots, and the specifications are small, the precision is high, the varieties are many, and the output is large. The annual output of each variety is tens of thousands of pieces. At present, the processing of the end face slots of such parts is mostly single-piece processing; especially for six-slot nuts, in the processing process of each part, the forming of the slot needs to go through three clamping operations, which not only increases the complexity of the workers' operation, but also significantly prolongs the invalid operation time, such as clamping, positioning, adjustment, etc. These operations occupy a large amount of production time, resulting in a huge waste of time cost; in addition, frequent clamping also increases the risk of parts damage, affects the overall quality consistency of the finished product, and further aggravates the lag in production progress. It can be seen that the existing processing methods have been difficult to meet the needs of modern aviation manufacturing industry for efficient and high-quality production, and have become a key factor restricting production efficiency and cost control.

[0036] In order to solve the above problems, the present invention provides a grooving device for wire cutting. By using this device, not only can multiple nuts be processed at one time during the grooving process, but the number of times the parts are clamped and the number of times the tooling is flipped is reduced, thereby ensuring the quality of the parts and improving the processing efficiency.

[0037] The present embodiment provides a grooving device for wire cutting, the device comprising a base 1, a polygonal flip body and a multi-station mandrel 3; the base 1 is used to fix the polygonal flip body, and is connected to a cutting table or a working bridge plate of a wire cutting device by bolts; the polygonal flip body is used to realize wire cutting of different angular directions of a slot nut (5) to be processed by flipping, and is arranged on the base 1 and is positioned with the base 1; the multi-station mandrel 3 is used to install a plurality of slot nuts 5 to be processed, and is inserted into the central hole of the polygonal flip body, and a plurality of stations arranged in an array are arranged on the end face; and the multi-station mandrel 3 can be arranged into a plurality of rows of stations as the polygonal flip body flips to any angular direction of the slot nut 5 to be processed, and each row of stations includes at least two stations, so that each wire cutting trajectory passes through the slot nuts 5 to be processed on at least two stations, thereby improving the processing efficiency.

[0038] In this embodiment, the polygonal flip body can adopt a directional three-sided sleeve 2, but is not limited to the directional three-sided sleeve 2. It can be a square sleeve, a hexagonal sleeve or an octagonal sleeve with regular and uniform shape, and the principle is the same as that of the directional three-sided sleeve 2.

[0039] In this embodiment, the workstation arrangement of the end face of the multi-station mandrel 3 can adopt a hexagonal matrix, that is, a workstation is arranged on each vertex of the hexagon and a workstation is arranged on the geometric center. Of course, the end face workstation arrangement of the multi-station mandrel 3 is not limited to the above arrangement. As long as each column of stations along the cutting line includes at least two or more stations, the arrangement requirements are met. In this way, with the cooperation of the polygonal flip body, the wire cutting operation of the slot nut in different angular directions can be realized.

[0040] The present invention is further described in detail below with reference to the accompanying drawings and embodiments: like Figure 1 As shown, this embodiment provides a grooving device for wire cutting, including a base 1, a directional three-way sleeve 2, a multi-station core shaft 3 and a clamping screw 4.

[0041] Combination Figure 2 and Figure 3 As shown, the base 1 adopts a rectangular structure, with T-shaped positioning bosses designed at both ends and two symmetrical small holes in the middle for installation and fixation of the base 1, which is usually connected to the cutting table by bolts.

[0042] The directional three-party sleeve 2 adopts a triangular structure. The three edges of the directional three-party sleeve 2 are parallel to the bottom surface and have three small planes. The three large surfaces of the directional three-party sleeve 2 are provided with cross grooves for positioning with the base 1. Three threaded holes are opened on the three small planes to cooperate with the clamping screws 4 for fixing the multi-station core shaft 3, which can effectively limit the multi-station core shaft 3 and prevent it from rotating.

[0043] like Figure 4 and Figure 5 As shown, the multi-station mandrel 3 adopts a cylindrical structure; a hexagonal column structure (i.e., a raised structure) with a hexagonal matrix distribution is designed on each of the two end faces, and the hexagonal column structure cooperates with the inner hexagon of the part (the slot nut 5 to be processed). Among them, the hexagonal column structure arranged in a hexagonal matrix not only provides multiple stations for part clamping, but also effectively reduces the number of part installations. Alignment marks are designed at both ends of the outer circle of the multi-station mandrel 3. In this embodiment, a platform is opened on the outer circle, and the platform is parallel to the two planes of the hexagonal column structure, which is convenient for aligning the parts, so that the upper plane of the platform and the hexagonal column structure is parallel to the base 1, ensuring that the center position of the part remains unchanged when the directional tripod sleeve 2 is flipped. The hexagonal column adopts the design at both ends of the mandrel to facilitate group processing, reduce the number of mandrels, and further improve the efficiency of part processing.

[0044] Based on the above-mentioned groove cutting device for wire cutting, this embodiment also provides a wire cutting method for a slot nut, comprising the following steps: Step 1: Install the base 1 in the wire cutting slotting device on the working bridge plate of the wire cutting equipment, and fix and tighten it with screws through the two holes on the base plate 1.

[0045] Step 2: Install the multi-station mandrel 3 in the hole of the directional three-sided sleeve 2. The station end of the multi-station mandrel 3 (the large outer circle of the chuck) cooperates with the inner hole of the directional three-sided sleeve 2. The platform on the outer circle of the chuck is parallel to the plane of the directional three-sided sleeve 2 and perpendicular to the wire cutting wire of the wire cutting equipment.

[0046] Step 3: Install the slot nut 5 to be processed on the hexagonal prism of the multi-station core shaft 3, the inner hexagon of the slot nut 5 to be processed matches with the outer hexagon of the hexagonal prism, and the end face of the slot nut 5 to be processed is tightly attached to the bottom face of the hexagonal prism.

[0047] Step 4: Install the directional tripod sleeve 2 with the slot nut 5 to be processed in the directional T-shaped boss of the base plate 1, use a dial indicator to level the platform of the multi-station mandrel 3, ensure that the platform is parallel to the base 1, and after leveling and adjustment, use the clamping screw 4 to fix the multi-station mandrel 3 and the directional tripod sleeve 2, use the wire cutting wire to align the outer circle of the chuck of the multi-station mandrel 3, and then the slot nut 5 to be processed can be processed.

[0048] Step 5: If Figure 8 As shown, when adding the slot nut 5 to be processed, the wire cutting wire is processed from left to right, first processing the two parts on the right, and then processing the middle row and the leftmost row in turn. The wire feeding trajectory is similar to a periodic matrix pulse spectrum, with a total of three wire feeding and outputting.

[0049] Step 6: After processing a pair of slots, you need to flip the directional three-way sleeve 2, flip the directional three-way sleeve 2 120 degrees, fix it on the bottom plate 1 at the original clamping position, and process the adjacent slots of the part to complete the processing of the four slots of the part. Flip it for the second time to complete the processing of the six slots of the hexagonal slot nut, such as Figure 6 and Figure 7 As shown, note that the parts do not need to be loaded or unloaded during the flipping process.

[0050] In this embodiment, the two threaded holes in the middle of the base plate 1 are used to install screws or bolts to connect and fix the pressure plate to the machine tool. The T-shaped bosses at both ends of the pressure plate cooperate with the cross grooves of the directional three-party sleeve 2 to fix the directional three-party sleeve 2 and ensure that the center position of the part remains unchanged after the directional three-party sleeve 2 is flipped. The design of the T-shaped bosses at both ends is for force balance and efficient processing.

[0051] In this embodiment, the hole of the directional three-party sleeve 2 cooperates with the outer circle of the multi-station core shaft 3 for installing the parts, the cross grooves on the three surfaces of the directional three-party sleeve 2 cooperate with the T-shaped bosses of the base plate, the three threaded holes are used to install the clamping screws 4, and the vertical distances from the center line of the directional three-party sleeve 2 to the three large surfaces of the directional three-party sleeve 2 are equal, ensuring that the center position of the part remains unchanged after the directional three-party sleeve 2 is flipped over.

[0052] In this embodiment, the length of the multi-station mandrel 3 can be greater than the length of the directional tripod sleeve 2, and hexagonal prism structures for installing parts with a hexagonal matrix distribution are designed at both ends. The hexagonal prisms are distributed in a hexagonal shape, and the number of hexagonal prisms (stations) is n6+1 (n represents a multiple of 6). The coaxiality of the middle hexagonal prism and the outer circle of the multi-station mandrel is not greater than 0.01 mm. The hexagonal prism sizes at both end faces of the multi-station mandrel are designed to be different sizes. When the consistency of the hexagonal processing size inside the part is not good, the parts need to be grouped before processing. According to the grouping situation, the suitable hexagonal prism at one end is selected to install the parts, which can also reduce the number of groups of the multi-station mandrel.

[0053] The grooving device for wire cutting provided in this embodiment has a novel structure, and the parts clamping stations are distributed in a hexagonal matrix. The directional three-party sleeve structure is applied, so there is no need to remove the parts when the parts are turned. The angular adjustment of multiple parts can be completed by flipping the directional three-party sleeve. Existing grooving tooling is generally single-piece clamping or multi-station tooling. Most of them are clamping methods with linear multi-station distribution. Each time the processing is completed and flipped, the parts are flipped. Several parts are loaded on the fixture. Each part needs to be re-clamped and the direction adjusted when flipping. The number of times the parts are clamped is relatively large, and the processing efficiency for mass production is still very low. Compared with existing grooving tooling, the present invention reduces the part clamping time and the number of cutting times, greatly improving the processing efficiency. Figure 1 As shown, the wire cutting grooving device provided in this embodiment can hold 7 parts at a time. The 7 parts only need to be clamped once, turned over 2 times, and cut 9 times to complete the end face groove processing of the 7 parts. If it is a single piece processing, the 7 parts need to be clamped 7 times, turned over 14 times, and cut 21 times to complete the end face groove processing of the 7 parts. It can be seen that the present invention reduces 12 turning actions and time, 12 cutting times, and greatly reduces time waste by calculating based on 7 parts. In addition, the number of hexagonal columns can be multiplied, and the number of hexagonal columns is n6+1 (n is a multiple of 6), which means that the design idea of ​​this embodiment can also multiply the processing efficiency on this basis.

[0054] Example 2 This embodiment also provides a specific implementation method of a wire cutting groove device, and the specific steps are as follows: Step 1: Use screws to connect and fix the base 1 to the wire cutting device through the two middle holes on the base 1.

[0055] Step 2: Install the multi-station mandrel 3 into the large hole in the middle of the directional three-party sleeve 2. The large hole in the middle of the directional three-party sleeve 2 and the outer circle of the multi-station mandrel 3 are clearance fit, and the clearance is less than 0.01mm. The platform of the multi-station mandrel 3 must be exposed outside the directional three-party sleeve 2 for easy alignment.

[0056] Step 3: Install the directional tripod sleeve 2 with the multi-position mandrel 3 in the T-shaped boss of the base plate 1, use a dial indicator to level the platform of the multi-position mandrel 3, ensure that the platform is parallel to the base 1, and after adjustment, use the clamping screw 4 to connect and fix the multi-position mandrel 3 and the directional tripod sleeve 2.

[0057] Step 4: Install the parts on the 7 hexagonal columns. The hexagonal columns match the inner hexagon of the parts, and the end faces of the parts are tightly attached to the bottom faces of the hexagonal columns. This completes the clamping of the parts.

[0058] Step 5. After aligning the tool and the parts, call the wire cutting program to process the parts. Each part can be processed with two symmetrical grooves at a time. After the groove processing in one direction is completed, flip the directional three-way sleeve 2 to complete the groove processing in the other direction of the part. The parts do not need to be flipped and installed multiple times. The directional three-way sleeve can complete all the groove processing of each group of parts by flipping it twice.

[0059] Step 6: After one set of parts is processed, remove the parts and install the next set of parts. The next set of parts can be processed directly without tool setting.

[0060] In summary, the present invention provides a grooving device and method for wire cutting, which has the following advantages over existing auxiliary tooling: In order to solve the problems of low processing efficiency of slot nuts, many tooling turnovers and parts clamping times, too long ineffective labor time of workers, and low production efficiency, the present invention provides an efficient and fast wire cutting slotting device. The use of this device not only reduces the part processing time and clamping times, but also reduces the number of turnovers during operation and the labor intensity of workers, and exponentially improves the processing efficiency of the parts, providing technical support for the company's one-person-multi-machine efficient working mode. In addition, the structure of the present invention is simple and easy to promote, with great practical value, and has a certain reference role in the tooling design of wire cutting slotting processing of shaft-type multi-slot parts.

[0061] The above embodiment is only one of the implementation methods that can realize the technical solution of the present invention. The scope of protection claimed by the present invention is not limited only to this embodiment, but also includes changes, replacements and other implementation methods that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the present invention.

Claims

1. A grooving device for wire cutting, characterized in that: comprising a base (1); A polygonal flip body, the polygonal flip body being arranged on the base (1) and capable of realizing wire cutting of different angular directions of the slotted nut (5) to be processed by flipping the polygonal flip body; A multi-station mandrel (3), the multi-station mandrel (3) being inserted and fixed on the polygonal flip body and arranged parallel to the base (1); the end surface of the multi-station mandrel (3) is provided with a plurality of stations arranged in an array; wherein, when the multi-station mandrel (3) is flipped to any angular direction of the slot nut (5) to be processed, a plurality of rows of stations are formed, and each row of stations includes at least two stations; the stations of the multi-station mandrel (3) are used to install the slot nut (5) to be processed.

2. The wire cutting groove cutting device according to claim 1, characterized in that: The base (1) is provided with a positioning boss; the polygonal flip body comprises a plurality of positioning surfaces, each of which is provided with a positioning groove that matches the positioning boss.

3. The wire cutting groove cutting device according to claim 1, characterized in that: The polygonal turning body adopts a directional three-sided sleeve (2); a hole for inserting the multi-station core shaft (3) is provided inside the directional three-sided sleeve (2); the directional three-sided sleeve (2) and the multi-station core shaft (3) are fixed by means of a threaded connection.

4. The wire cutting groove cutting device according to claim 3, characterized in that: The directional three-sided sleeve (2) comprises three positioning surfaces, with two adjacent positioning surfaces arranged at 120 degrees; each positioning surface is provided with a cross groove; the base (1) is provided with a T-shaped boss; when the directional three-sided sleeve (2) is turned over to any positioning surface as the bottom surface, the cross groove of the corresponding positioning surface forms a positioning fit with the T-shaped boss.

5. The wire cutting groove cutting device according to claim 1, characterized in that: The workstations on the end surface of the multi-workstation mandrel (3) are arranged in a hexagonal matrix, wherein a workstation is arranged on each vertex of the hexagon and a workstation is arranged on the geometric center.

6. The wire cutting groove cutting device according to claim 1, characterized in that: The workstation adopts a convex column structure, the shape of which corresponds to the shape of the inner hole of the slot nut (5) to be processed; when the wire cutting operation is performed, the slot nut (5) to be processed is sleeved and fixed on the convex column structure.

7. The wire cutting groove cutting device according to claim 1, characterized in that: The workstation adopts a convex column structure, and an alignment mark is provided on the end of the multi-station mandrel (3) close to the workstation, and the alignment mark is used for alignment during wire cutting operation.

8. The wire cutting groove cutting device according to any one of claims 1 to 7, characterized in that: A polygonal turning body and a multi-station mandrel (3) inserted into the polygonal turning body are respectively arranged at both ends of the base (1), and a through hole for fixing to a cutting table is opened in the middle of the base (1).

9. A wire cutting method for a slotted nut, characterized in that: The wire cutting groove cutting device according to any one of claims 1 to 8 comprises: Inserting the multi-station mandrel (3) into the polygonal turning body and fixing it; Mounting a plurality of slotted nuts (5) to be processed on a work station of a multi-station mandrel (3); Place the polygonal flip body on the base (1); Performing wire cutting operations on the slot nuts (5) to be processed on each row of workstations in turn to complete wire cutting of one angular direction of the slot nuts (5) to be processed; The polygonal flip body is flipped over, the wire cutting direction remains unchanged, and the wire cutting operation is then performed on the slotted nuts (5) to be processed on each row of workstations in turn; The above-mentioned polygonal turning body turning process and wire cutting operation are repeated until the wire cutting of each angular direction of the slot nut (5) to be processed is completed.

10. The wire cutting method of the slot nut according to claim 9, characterized in that: Insert the multi-station mandrel (3) into the directional three-way sleeve (2) so that the alignment mark on the multi-station mandrel (3) is parallel to the base (1) and perpendicular to the wire cutting wire. After alignment, use the clamping screw (4) to fix the multi-station mandrel (3) and the directional three-way sleeve (2); The end faces of a plurality of slotted nuts (5) to be processed are tightly mounted on the bottom surface of the workstation of the multi-workstation mandrel (3); Performing wire cutting operations on the slotted nuts (5) to be processed on each row of workstations in turn to achieve processing of the first pair of slots; Flip the directional three-way sleeve (2) 120 degrees, and then perform wire cutting operations on the slotted nuts (5) to be processed on each row of workstations in turn to achieve the processing of the second pair of slots; The directional three-sided sleeve (2) is continuously flipped 120 degrees, and the slotted nuts (5) to be processed on each row of workstations are continuously subjected to wire cutting operations in order to process the third pair of slots, thereby obtaining a plurality of hexagonal slotted nuts (6).

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