CN113681099A - Universal tool and method for cutting and machining ring segment parts - Google Patents

Abstract

The invention relates to a universal tool and method for cutting and processing ring segment parts, comprising a base body, a circumferential positioning transfer slider, a circumferential transfer slider, an extension plate and a positioning joint. The connecting block and the circumferential transfer block are arranged on the main body of the base through the keyway, and the upper part of the circumferential positioning transfer block and the circumferential transfer block are sequentially provided with an extension plate and a positioning joint, and are fixed by screws. One end of the extension plate is fastened with the positioning joint and the circumferential positioning transfer slider or the circumferential transfer slider, and one end of the extension plate on the upper part of the circumferential positioning transfer slider is provided with a key positioning shaft and a guide member, and the circumferential rotation One end of the extension plate connected to the slider part is provided with a key positioning shaft and a pressing member, and the parts to be processed are clamped and pressed. The invention can be used in both fixed and rotary table EDM wire cutting machines, so that the existing fixed table EDM wire cutting machine has the capability of angular indexing cutting of ring segment parts.

Description

Universal tooling and method for cutting and machining ring segment parts

technical field

The invention belongs to the technical field of machining of ring-segment parts, and in particular relates to a universal tool and a method for cutting and machining ring-segment parts.

Background technique

At present, in the field of aero-engine ring segment parts processing, the wire EDM machine with a rotary table is mainly used for indexing and cutting. When the ring segment parts are cut off by the WEDM machine, it is necessary to use a special fixture to clamp the parts. Each special fixture can usually only process one type of part, and the special fixture has poor versatility.

Aero-engine ring segment parts have many types, small batches, frequent conversions, and large quantities. The special fixture design and manufacturing cycle is long, the cost is high, and the fixture conversion time is long, which cannot meet the needs of development and processing. At the same time, some WEDM machines with fixed worktables cannot process ring-segment parts because the worktable cannot rotate, resulting in waste of production capacity.

SUMMARY OF THE INVENTION

Aiming at the deficiencies in the prior art, the present invention provides a universal tool and method for cutting and processing ring-segment parts, which can simultaneously satisfy the machining requirements of a fixed-table WEDM and a rotary-table WEDM. It is required that the existing fixed-table wire EDM machine tool has the ability of angular indexing cutting of ring segment parts, and can clamp different diameters, different heights, different shapes, different arc lengths, different chord heights, and different number of segments. The parts are processed, and the versatility is strong. The invention solves the problems of many kinds of ring-segment parts, small batch, frequent conversion, large quantity, large demand for special clamps, difficulty in changing clamps, and high frequency.

A universal tooling used for cutting and processing ring segment parts, including a base body, a circumferential positioning transfer slider, a circumferential transfer slider, an extension plate and a positioning joint, a circumferential positioning transfer slider, a circumferential positioning transfer slider, and a circumferential positioning transfer slider. The direction transfer slider is set on the main body of the base through the keyway, the circumferential positioning transfer slider and the upper part of the circumferential transfer slider are sequentially provided with an extension plate and a positioning joint, and one end of the extension plate is connected to the upper part of the extension plate by a screw. The positioning joint is fastened with the circumferential positioning transfer slider or the circumferential transfer slider. The other end of the extension plate on the upper part of the circumferential positioning transfer slider is provided with a key positioning shaft and a guide member. The circumferential transfer slider part The other end of the extension plate is provided with a key positioning shaft and a pressing member, which jointly clamp and press the parts to be processed.

The base body includes two parts with different outer diameters, namely a small end located at the upper part and a large end located at the lower part; the small end is annular, and the upper surface of the small end is provided with a T-shaped annular key groove, and the T-shaped ring The lower ring groove of the keyway is used to install the T-type nut; the upper surface of the small end is provided with a small end facing straight keyway, and the lower surface of the big end is provided with a large end facing straight keyway, which is used for the positioning of the base body on the machine tool.

The number of the small-end face-to-face straight keyways is greater than 1.

A circular arc key is provided on the lower surface of the circumferential positioning adapter slider, a cross keyway is provided on the upper surface of the circumferential positioning adapter sliding block, and the circular arc key is connected with the T-shaped annular keyway provided on the small end face of the base body. The upper ring groove is matched, and the angular center positions of the inner and outer sides of the circumferential positioning transfer slider are provided with vertical key grooves along the height direction.

A circular arc key is provided on the lower surface of the circumferential transfer slider, a cross keyway is provided on the upper surface of the circumferential transfer slider, and the circular arc key and the upper ring of the T-shaped annular keyway are provided on the small end face of the base body. slot fit.

The upper surface of the extension plate is used for the plane for the axial positioning of the parts to be processed. The upper surface and the lower surface of the extension plate are provided with cross key grooves. The cross keyway on the upper surface of the connecting block or the circumferential transfer block is matched, the other end of the extension plate is installed with a key positioning shaft, the lower surface of the key positioning shaft is provided with a cross key groove, and a word key is installed in the cross key groove. The centripetal keyway in the cross keyway on the upper surface of the long plate is matched; T-shaped screws are installed in the centripetal keyway in the cross keyway on the upper surface of the extension plate on the upper part of the circumferential transfer slider, and the T-shaped screw is installed with a compression A T-shaped screw is installed in the centripetal keyway in the cross keyway on the upper surface of the extension plate on the upper part of the circumferential positioning transfer slider, and a guide piece is installed on the T-shaped screw.

The above-mentioned universal tooling for cutting and processing ring-segment parts is processed on a wire EDM machine tool with a fixed worktable, and specifically includes the following steps:

Step 1: Install the base body on the machine table, straighten the reference planes on both sides of the positioning block at the big end of the base body, and align the tooling;

Step 2: Install the corresponding number of circumferential positioning transfer sliders, circumferential transfer sliders, extension plates and positioning joints according to the number of segments of the parts to be processed, and align one end of the extension plate with the center of the tooling, and the other end with the base. The outer circle of the small end of the seat body is flush; the number of key positioning shafts is 3-4;

Step 3: Index the extension plate. There are three indexing methods for the extension plate. The first is to connect the angular center line on the inner and outer sides of the circumferential transfer slider with the inner circle at the small end of the base body, The angular scale lines of the outer circle are compared to achieve rapid indexing; the second is to use a small end of the small end of the base body facing the center keyway as the 0-degree position, and the small end of the 0-degree position facing the center keyway as the angular zero point , the circumferential transfer slider and the extension plate are indexed according to the corresponding angle. The indexing is by measuring the positioning joint of the required indexing and the center of the positioning joint on the circumferential positioning transfer slider at the angular zero point. The third is to insert a locating pin in the reference hole, and measure the center distance between the locating pin and the key locating shaft to achieve accurate indexing of the extension board;

Step 4: Install the key positioning shaft through the one-word key at one end of the extension plate facing the center of the tooling, and move the key positioning shaft with a word key in the centripetal keyway of the extension plate, and measure the key positioning shaft and positioning joint. The center distance to adjust the size of the stop accurately;

Step 5: Install and press the parts to be processed: put the parts to be processed on the upper surface of the extension plate, the side faces are in contact with the side surfaces of the key positioning shaft, and then press the pressing parts and guides on the upper surface of the parts to be processed;

Step 6: The molybdenum wire is processed by linear interpolation of the X axis and the Z axis on the inside of the base body to obtain the required size.

The above-mentioned universal tooling for cutting and processing ring-segment parts is processed on a wire EDM machine tool of a rotary table, and specifically includes the following steps:

Step 1: Install the base body on the machine table, straighten the reference planes on both sides of the positioning block at the big end of the base body, and align the tooling;

Step 2: Install the corresponding number of circumferential positioning transfer sliders, circumferential transfer sliders, extension plates and positioning joints according to the number of segments of the parts to be processed, and align one end of the extension plate with the outside of the tooling, and the other end with the base. The inner circle of the small end of the seat body is flush; the number of key positioning shafts is 3-4;

Step 3: Index the extension plate. There are three indexing methods for the extension plate. The first is to connect the angular center line on the inner and outer sides of the circumferential transfer slider with the inner circle at the small end of the base body, The angular scale lines of the outer circle are compared to achieve rapid indexing; the second is to use a small end of the small end of the base body facing the center keyway as the 0-degree position, and the small end of the 0-degree position facing the center keyway as the angular zero point , the circumferential transfer slider and the extension plate are indexed according to the corresponding angle. The indexing is by measuring the positioning joint of the required indexing and the center of the positioning joint on the circumferential positioning transfer slider at the angular zero point. The third is to insert a locating pin in the reference hole, and measure the center distance between the locating pin and the key locating shaft to achieve accurate indexing of the extension board;

Step 4: Install the key positioning shaft through the one-word key at one end of the extension plate facing the center of the tooling, and move the key positioning shaft with a word key in the centripetal keyway of the extension plate, and measure the key positioning shaft and positioning joint. The center distance to adjust the size of the stop accurately;

Step 5: Install and press the parts to be processed: Install the parts to be processed on the extension plate, put the parts to be processed on the upper surface of the extension plate, and the side faces are in contact with the side of the key positioning shaft, and then press the parts and guides. The parts are pressed against the upper surface of the parts to be processed;

Step 6: The molybdenum wire is processed by linear interpolation of the X axis and the Z axis on the inside of the base body to obtain the required size.

The beneficial effects of the present invention are: the present invention realizes the universalization, labeling, serialization and modularization of the indexing and cutting tooling for ring segment parts, ensures the progress of development and delivery, reduces the cost of special tooling, and reduces tooling conversion time. The invention has simple structure, simple installation, simple operation, convenient clamping, low cost and obvious application effect. The invention has been successfully applied to the indexing and cutting of ring segment parts of commercial large turbofan engines, a certain type of turbofan engine, subcontracting and other projects, and the universal tooling and method have solved the tooling problem of about 20 piece numbers. , to achieve the standardization and modularization of the indexing and cutting tooling for ring-segment parts, ensuring the progress of development and delivery, reducing more than 790 special tooling items, saving about 576,500 yuan in tooling costs, reducing special tooling design man-hours by more than 1,100 hours, and shortening production. Prep cycle 85%. It has a wide range of promotion and can bring economic benefits from saving the cost of special tooling, reducing the quality loss of parts, reducing the processing time, and shortening the production preparation time. The annual cost savings is about one million yuan.

Description of drawings

Fig. 1 is the clamping schematic diagram of the universal tool provided by the embodiment of the present invention;

2 is a front view of a universal tooling provided by an embodiment of the present invention;

Fig. 3 is the top view of Fig. 2;

Fig. 4 is the A-A direction view of Fig. 3;

Fig. 5 is the enlarged view of A part in Fig. 1;

in,

1- Base body, 2- Circumferential transfer slider, 3- Angular center line, 4- Reference hole, 5- Reference surface, 6- Circumferential positioning transfer slider, 7- Extension plate, 8 -Guide piece, 9-Pressure piece, 10-Key positioning shaft, 11-Locating joint, 12-T-type nut, 13-Small end face-to-center straight keyway, 14-Angle scale line, 15-T-shaped annular keyway , 16-big end face-to-center straight keyway, 17-parts to be processed.

Detailed ways

In order to better explain the present invention and facilitate understanding, the technical solutions and effects of the present invention will be described in detail below with reference to the accompanying drawings and through specific embodiments.

As shown in Figure 1, a universal tooling for cutting and processing ring segment parts includes a base body 1, a circumferential positioning adapter slider 6, a circumferential adapter slider 2, an extension plate 7 and a positioning joint 11. The circumferential positioning transfer slider 6 and the circumferential transfer slider 2 are arranged on the base main body 1 through key grooves. The upper parts of the circumferential positioning transfer slider 6 and the circumferential transfer slider 2 are sequentially provided with The extension plate 7 and the positioning joint 11, and one end of the extension plate 7 is fastened with the positioning joint 11 and the circumferential positioning transfer slider 6 or the circumferential transfer slider 2 by screws, and the circumferential positioning transfer slider 6 is fastened. The other end of the upper extension plate 7 is provided with a key positioning shaft 10 and a guide member 8, and the other end of the extension plate 7 of the circumferential transfer slider 2 is provided with a key positioning shaft 10 and a pressing member 9, which together are the parts to be processed. 17 Carry out clamping and pressing.

As shown in Figures 2-4, the base body 1 is the main body part of the device, and the base body 1 includes two parts with different outer diameters, namely the small end located at the upper part and the large end located at the lower part; The small end is annular, the upper surface of the small end is provided with a T-shaped annular key groove 15, and the upper annular groove of the T-shaped annular key groove 15 is used for the base body 1 and the circumferential transfer slider 2 and circumferential positioning transfer. For the conversion of the radial dimension and the angular dimension between the sliders 6, the lower ring groove of the T-shaped annular keyway 15 is used to install the T-shaped nut 12; Circumferential transfer the angular positioning when the slider is indexed by 2; the lower surface of the big end is provided with the big end facing the center straight keyway 16, which is used for the positioning of the base body 1 on the machine tool. In this embodiment, the number of small-end facing central straight keyways 13 is four, which are evenly distributed along the circumferential direction of the T-shaped annular keyway 15; Circumferentially distributed.

As shown in FIG. 5 , arc keys are provided on the lower surface of the circumferential positioning adapter slider 6 , cross key grooves are provided on the upper surface of the circumferential positioning adapter slider 6 , and the arc keys are smaller than the base body 1 . The upper ring groove of the T-shaped annular key groove 15 opened on the end face is matched, and the circumferential positioning adapter slider 6 can slide along the T-shaped annular key groove 15 . The cooperation of the arc key and the T-shaped annular key groove 15 converts the radial reference of the base body 1 to the center of the cross key groove on the upper surface of the circumferentially positioned adapter slider 6 . The center of the circumferential positioning transfer slider 6 is provided with a through hole along the height direction for pressing and fixing. The angular center positions of the inner and outer sides of the circumferential positioning transfer slider 6 are provided with vertical keyways along the height direction, and a word key is installed in the vertical keyway to cooperate with the small end facing the central straight keyway 13, and the base body 1 The angular reference is shifted to the center of the cross key groove on the upper surface of the circumferentially positioned adapter slider 6 .

As shown in FIG. 5 , arc keys are provided on the lower surface of the circumferential transfer slider 2 , cross key grooves are provided on the upper surface of the circumferential transfer slider 2 , and the arc keys are provided with the small end face of the base body 1 . The upper ring groove of the T-shaped annular key groove 15 is matched, and the circumferential transfer slider 2 can slide along the T-shaped annular key groove 15 . The cooperation of the arc key and the T-shaped annular key groove 15 converts the radial reference of the base body 1 to the center of the cross key groove on the upper surface of the circumferential transfer slider 2 . The center of the circumferential transfer slider 2 is provided with a through hole along the height direction for pressing and fixing.

The upper surface of the extension plate 7 is used for the axial positioning plane of the part 17 to be processed. The upper surface and the lower surface of the extension plate 7 are provided with cross key grooves. The cross key grooves on the lower surface of the extension plate 7 are installed with cross keys and The cross key groove on the upper surface of the circumferential positioning transfer slider 6 or the circumferential transfer slider 2 is matched to convert the radial and angular dimension reference of the base body 1 to the center of the cross key groove on the upper surface of the extension plate 7 . The other end of the extension plate 7 is installed with a key positioning shaft 10, the lower surface of the key positioning shaft 10 is provided with a cross key groove, and a word key is installed in the cross key groove, which cooperates with the center key groove in the cross key groove on the upper surface of the extension plate 7, The key positioning shaft 10 can slide along the concentric keyway in the cross keyway on the upper surface of the extension plate 7 . By installing the key positioning shaft 10 with a character key, the movement of the key positioning shaft 10 can adjust the size of the positioning stop, so that the side surface of the key positioning shaft 10 contacts the side surface of the part 17 to be processed for positioning.

A through hole is formed in the middle of the elongated plate 7 along the height direction.

When the worktable is processed by the wire EDM machine, one end of the extension plate 7 faces the center of the tooling, the other end is flush with the outer circle of the small end of the base body 1, and the molybdenum wire is inserted into the base body 1 in a straight line. Make up the required size. During the machining of the wire EDM machine on the rotary table, one end of the extension plate 7 faces the outside of the tooling, the other end is flush with the inner circle of the small end of the base body 1, and the molybdenum wire is carried out on the inside of the base body 1. Linear interpolation machining to the required size.

A T-shaped screw is installed in the centripetal keyway in the cross keyway on the upper surface of the extension plate 7 on the upper part of the circumferential transfer slider 2, and a pressing member 9 is installed on the T-shaped screw, which is used for the installation of the parts 17 to be processed. Clamp and compress.

A T-shaped screw is installed in the centripetal keyway in the cross keyway on the upper surface of the extension plate 7 on the upper part of the circumferential positioning transfer slider 6, and a guide member 8 is installed on the T-shaped screw for guiding the parts 17 to be processed. and clamping.

In this embodiment, the ring segment type parts to be processed are eight segments, seven circumferential transfer sliders 2 and one circumferential positioning transfer slider 6 are provided, and four key positioning shafts 10 are provided in total.

The lower surface of the positioning joint 11 is provided with a cross key groove, and the cross key groove on the upper surface of the extension plate 7 is installed with a cross key, which cooperates with the cross key groove on the lower surface of the positioning joint 11 to adjust the radial and angular dimensions of the base body 1 The reference is switched to the center of the positioning joint 11 . The middle of the positioning joint 11 is provided with a through hole along the height direction, and the screws pass through the positioning joint 11, the extension plate 7, the circumferential positioning transfer slider 6 or the circumferential transfer slider 2 in turn, and the T-shaped annular key groove. The T-nuts 12 in 15 are matched for compression.

The large end of the base body 1 is symmetrically provided with a reference hole 4 along its height direction, which is used for angular positioning when the circumferential transfer slider is divided into 2; The side of the side is the reference plane 5, which is symmetrical with respect to the center of the base body 1, and is used for the alignment of the entire tooling. The size of the reference hole 4 in this embodiment is φ21H7.

The inner and outer surfaces of the small end of the base body 1 are provided with angular scale lines 14 for rapid indexing of the circumferential transfer slider 2 .

An angular center scribe line 3 is provided on the angular center positions of the inner and outer sides of the circumferential transfer slider 2 for rapid indexing of the circumferential transfer slider 2 .

During processing, a corresponding number of circumferential positioning adapter sliders 6 , circumferential adapter sliders 2 , extension plates 7 and positioning joints 11 are installed according to the number of segments of the parts 17 to be processed. The circumferential positioning adapter sliders 6 The total number of the circumferentially positioned transfer sliders 2 is equal to the number of segments of the part to be processed 17 , wherein the number of the circumferentially positioned transfer sliders 6 is greater than one. There are three indexing methods of the extension plate 7. The first one is to connect the angular center scribe line 3 on the inner and outer sides of the circumferential transfer slider 2 with the angular scale lines on the inner and outer circles of the small end of the base body 1. 14 for comparison, to achieve rapid indexing; the second is to use a small end of the small end of the base body 1 facing the center keyway as the 0-degree position, and the small end of the 0-degree position facing the center keyway as the angular zero point. The connecting slider 2 and the extension plate 7 are indexed according to the corresponding angle. The third method is to insert a positioning pin in the reference hole 4, and realize the accurate indexing of the extension plate 7 by measuring the center distance between the positioning pin and the key positioning shaft 10.

Using the above-mentioned universal tooling for cutting and processing ring-segment parts, processing on a wire EDM machine tool with a fixed worktable specifically includes the following steps:

Step 1: Install the base body 1 on the machine table, straighten the reference planes 5 on both sides of the positioning block at the large end of the base body 1, and align the tooling.

Step 2: Install a corresponding number of circumferential positioning transfer sliders 6, circumferential transfer sliders 2, extension plates 7 and positioning joints 11 according to the number of segments of the part 17 to be processed, and orient one end of the extension plate 7 toward the end of the tooling. The other end is flush with the outer circle of the small end of the base body 1.

Step 3: Index the extension plate 7. There are three indexing methods for the extension plate 7. The first is to connect the angular center line 3 on the inner and outer sides of the circumferential transfer slider 2 with the base body 1. The angular scale lines 14 of the inner circle and outer circle of the small end are compared to achieve rapid indexing; the second is to use a small end of the small end of the base body 1 facing the center keyway as the 0-degree position, and the small end of the 0-degree position is used. The center-facing keyway is used as the angular zero point, and the circumferential transfer slider 2 and the extension plate 7 are indexed according to the corresponding angle. Transfer the center distance of the positioning joint 11 on the slider 6, so as to realize the accurate indexing of the extension plate 7; Accurate indexing of the extension plate 7 is achieved. In this embodiment, the second indexing method is adopted.

Step 4: Install the key positioning shaft 10 with one end of the extension plate 7 facing the center of the tooling through a key, and install the key positioning shaft 10 with a key to move in the centripetal keyway of the extension plate 7, and locate by measuring the key The center distance between the shaft 10 and the positioning joint 11 can precisely adjust the size of the spigot.

Step 5: Install and press the part to be processed 17: Put the part to be processed 17 on the upper surface of the extension plate 7, the side is in contact with the side of the key positioning shaft 10, and then press the pressing member 9 and the guide member 8 on the The upper surface of the part 17 to be machined.

Step 6: The molybdenum wire is processed by linear interpolation of the X axis and the Z axis on the inner side of the base body 1 to obtain the required size.

Using the above-mentioned universal tooling for cutting and processing ring-segment parts, processing on a wire EDM machine tool with a rotary worktable specifically includes the following steps:

Step 1: Install the base body 1 on the machine table, straighten the reference planes 5 on both sides of the positioning block at the large end of the base body 1, and align the tooling.

Step 2: Install a corresponding number of circumferential positioning transfer sliders 6, circumferential transfer sliders 2, extension plates 7 and positioning joints 11 according to the number of segments of the part 17 to be processed, and orient one end of the extension plate 7 toward the end of the tooling. Outside, the other end is flush with the inner circle of the small end of the base body 1 .

Step 3: Index the extension plate 7. There are three indexing methods for the extension plate 7. The first is to connect the angular center line 3 on the inner and outer sides of the circumferential transfer slider 2 with the base body 1. The angular scale lines 14 of the inner circle and outer circle of the small end are compared to achieve rapid indexing; the second is to use a small end of the small end of the base body 1 facing the center keyway as the 0-degree position, and the small end of the 0-degree position is used. The center-facing keyway is used as the angular zero point, and the circumferential transfer slider 2 and the extension plate 7 are indexed according to the corresponding angle. Transfer the center distance of the positioning joint 11 on the slider 6, so as to realize the accurate indexing of the extension plate 7; Accurate indexing of the extension plate 7 is achieved. In this embodiment, the second indexing method is adopted.

Step 4: Install the key positioning shaft 10 with one end of the extension plate 7 facing the center of the tooling through a key, and install the key positioning shaft 10 with a key to move in the centripetal keyway of the extension plate 7, and locate by measuring the key The center distance between the shaft 10 and the positioning joint 11 can precisely adjust the size of the spigot.

Step 5: Install and press the part to be processed 17: Install the part to be processed 17 on the extension plate 7, put the part to be processed 17 on the upper surface of the extension plate 7, the side is in contact with the side of the key positioning shaft 10, and then The pressing member 9 and the guiding member 8 are pressed against the upper surface of the part 17 to be processed.

Step 6: The molybdenum wire is processed by linear interpolation of the X axis and the Z axis on the inner side of the base body 1 to obtain the required size.

Claims (8)

1. A universal tooling for cutting and processing of ring segment parts is characterized in that: comprising a base body, a circumferential positioning transfer slider, a circumferential transfer slider, an extension plate and a positioning joint, and the circumferential positioning The transfer slider and the circumferential transfer slider are arranged on the main body of the base through the keyway, and the upper part of the circumferential positioning transfer slider and the circumferential transfer slider are sequentially provided with an extension plate and a positioning joint, which are connected by screws. Fasten one end of the extension plate with the positioning joint and the circumferential positioning transfer slider or the circumferential transfer slider, and the other end of the extension plate on the upper part of the circumferential positioning transfer slider is provided with a key positioning shaft and a guide, A key locating shaft and a pressing member are arranged on the other end of the extension plate of the transfer slider part, and the parts to be processed are clamped and pressed together. 2. A universal tool for cutting and processing ring segment parts according to claim 1, characterized in that: the base body comprises two parts with different outer diameters, namely the small end located at the upper part and the small end located at the upper part. The big end of the lower part; the small end is annular, the upper surface of the small end is provided with a T-shaped annular keyway, and the lower annular groove of the T-shaped annular keyway is used to install the T-shaped nut; the upper surface of the small end is provided with a small end facing the center Straight keyway, the lower surface of the big end is provided with a straight keyway facing the center of the big end, which is used for the positioning of the base body on the machine tool. 3 . The universal tool for cutting and machining ring segment parts according to claim 2 , wherein the number of the small-end face-to-center straight keyways is greater than 1. 4 . 4. A universal tool for cutting and processing ring segment parts according to claim 2, characterized in that: arc keys are provided on the lower surface of the circumferential positioning adapter sliding block, and the circumferential positioning adapter sliding block is provided with an arc key. The upper surface of the block is provided with a cross keyway, and the arc key is matched with the upper ring groove of the T-shaped annular keyway opened on the small end face of the base body. A vertical keyway is opened along the height direction, and a word key is installed in the vertical keyway to match with the small end facing the straight keyway. 5. A universal tool for cutting and processing ring segment parts according to claim 2, characterized in that: the lower surface of the circumferential transfer slider is provided with an arc key, and the circumferential transfer slider is provided with an arc key. The upper surface is provided with a cross key groove, and the arc key is matched with the upper ring groove of the T-shaped annular key groove formed on the small end surface of the base body. 6. A universal tool for cutting and processing ring segment parts according to claim 4 or 5, characterized in that: the surface of the extension plate is used for the plane for axial positioning of the parts to be processed, and the extension plate There are cross key grooves on the upper surface and the lower surface of the extension plate, and the cross key is installed in the cross key groove on the lower surface of the extension plate to cooperate with the circumferential positioning transfer slider or the cross key groove on the upper surface of the circumferential transfer slider. A key positioning shaft is installed at the other end of the plate, a cross keyway is formed on the lower surface of the key positioning shaft, and a word key is installed in the cross keyway, which is matched with the central keyway in the center of the cross keyway on the upper surface of the extension plate; the circumferential transfer slider A T-shaped screw is installed in the centripetal keyway in the cross keyway on the upper surface of the upper extension plate, and a pressing piece is installed on the T-shaped screw; A T-shaped screw is installed in the radial keyway, and a guide is installed on the T-shaped screw. 7. adopt a kind of universal tooling for cutting and machining of ring segment parts according to claim 6, process on the wire EDM machine tool of fixed workbench, it is characterized in that, specifically comprises the following steps: Step 1: Install the base body on the machine table, straighten the reference planes on both sides of the positioning block at the big end of the base body, and align the tooling; Step 2: Install the corresponding number of circumferential positioning transfer sliders, circumferential transfer sliders, extension plates and positioning joints according to the number of segments of the parts to be processed, and align one end of the extension plate with the center of the tooling, and the other end with the base. The outer circle of the small end of the seat body is flush; the number of key positioning shafts is 3-4; Step 3: Index the extension plate. There are three indexing methods for the extension plate. The first is to connect the angular center line on the inner and outer sides of the circumferential transfer slider with the inner circle at the small end of the base body, The angular scale lines of the outer circle are compared to achieve rapid indexing; the second is to use a small end of the small end of the base body facing the center keyway as the 0-degree position, and the small end of the 0-degree position facing the center keyway as the angular zero point , the circumferential transfer slider and the extension plate are indexed according to the corresponding angle. The indexing is by measuring the positioning joint of the required indexing and the center of the positioning joint on the circumferential positioning transfer slider at the angular zero point. The third is to insert a locating pin in the reference hole, and measure the center distance between the locating pin and the key locating shaft to achieve accurate indexing of the extension board; Step 4: Install the key positioning shaft through the one-word key at one end of the extension plate facing the center of the tooling, and move the key positioning shaft with a word key in the centripetal keyway of the extension plate, and measure the key positioning shaft and positioning joint. The center distance to adjust the size of the stop accurately; Step 5: Install and press the parts to be processed: put the parts to be processed on the upper surface of the extension plate, the side faces are in contact with the side surfaces of the key positioning shaft, and then press the pressing parts and guides on the upper surface of the parts to be processed; Step 6: The molybdenum wire is processed by linear interpolation of the X axis and the Z axis on the inside of the base body to obtain the required size. 8. adopt a kind of universal tooling for the cutting and processing of ring segment parts according to claim 6, and process on the wire electric discharge machine tool of the rotary table, it is characterized in that, specifically comprises the following steps: Step 1: Install the base body on the machine table, straighten the reference planes on both sides of the positioning block at the big end of the base body, and align the tooling; Step 2: Install the corresponding number of circumferential positioning transfer sliders, circumferential transfer sliders, extension plates and positioning joints according to the number of segments of the parts to be processed, and align one end of the extension plate with the outside of the tooling, and the other end with the base. The inner circle of the small end of the seat body is flush; the number of key positioning shafts is 3-4; Step 3: Index the extension plate. There are three indexing methods for the extension plate. The first is to connect the angular center line on the inner and outer sides of the circumferential transfer slider with the inner circle at the small end of the base body, The angular scale lines of the outer circle are compared to achieve rapid indexing; the second is to use a small end of the small end of the base body facing the center keyway as the 0-degree position, and the small end of the 0-degree position facing the center keyway as the angular zero point , the circumferential transfer slider and the extension plate are indexed according to the corresponding angle. The indexing is by measuring the positioning joint of the required indexing and the center of the positioning joint on the circumferential positioning transfer slider at the angular zero point. The third is to insert a locating pin in the reference hole, and measure the center distance between the locating pin and the key locating shaft to achieve accurate indexing of the extension board; Step 4: Install the key positioning shaft through the one-word key at one end of the extension plate facing the center of the tooling, and move the key positioning shaft with a word key in the centripetal keyway of the extension plate, and measure the key positioning shaft and positioning joint. The center distance to adjust the size of the stop accurately; Step 5: Install and press the parts to be processed: Install the parts to be processed on the extension plate, put the parts to be processed on the upper surface of the extension plate, and the side faces are in contact with the side of the key positioning shaft, and then press the parts and guides. The parts are pressed against the upper surface of the parts to be processed; Step 6: The molybdenum wire is processed by linear interpolation of the X axis and the Z axis on the inside of the base body to obtain the required size.

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