CN217990802U - Rapid forming equipment for aero-engine coil spring parts - Google Patents

Abstract

The utility model discloses an aeroengine wind spring part rapid prototyping is equipped, including the workstation, install the locking device that can initiatively rotate on the workstation, the plug lower extreme inserts locking device, locking device includes a plurality of compact heap that sets up around locking device rotation center, a plurality of compact heaps can move simultaneously and will insert the lower extreme of the plug of a plurality of compact heap inboard and hold tightly and fix, the upper end of plug is seted up the clamp groove of pegging graft with panel, install the guide module that can horizontal migration on the workstation, the sunken curved shaping face that is formed on the guide module, in the process of panel shaping for the wind spring, panel atress bending back can offset with the shaping face and slide along the shaping face and gradually deform; therefore, the production efficiency and the yield of the coil spring are improved through the quick replacement of the core rod and the control of the pitch of the coil spring.

Description

A rapid prototyping equipment for aero-engine coil spring parts

technical field

The utility model relates to the field of aero-engines, in particular to rapid prototyping equipment for coil spring parts of aero-engines.

Background technique

As a mechanical power component, the coil spring continuously provides a large restoring force for each component in the narrow space of the aero-engine, and also adds a balance force to each component. Each component needs to withstand high temperature, high pressure, Working in a complex environment with high speed, and each component has strict requirements on durability; due to the characteristics of complex coil spring specifications, many varieties, small batches, and special materials, the manufacturing process of the parts is complicated and difficult, and it needs to be processed after forming. Relying on the fitter to manually correct and conduct tests to finally determine the parameters of each part; at the same time, due to the particularity of its material, due to the imbalance of speed and forming force during the manufacturing process, fractures often occur and the scrap rate is high.

The patent document with the publication number CN206702138U discloses a large-scale contact-type planar scroll spring forming machine, which includes an equipment support, a front baffle set mounted on the equipment support, a rear baffle set, and a coil spring core that rotates around the axis axis. The coil spring mandrel is provided with an integrally extending front end and a rear end, the front end of the coil spring mandrel passes through the outside of the front baffle group, and the rear end of the coil spring mandrel is arranged transversely between the front baffle group and the front baffle group. Between tailgate groups. The rear baffle group can move against the rear end of the coil spring mandrel. A hanging shaft is arranged on the inner side of the front baffle group, and the hanging shaft is spaced from the coil spring mandrel and extends toward the rear baffle group. The coil spring mandrel is used to fix the inner hook of the spring during the molding process, and the hanging shaft is used to fix the outer hook of the spring after molding.

The existing technology has the following problems: 1) Due to the characteristics of the coil springs such as complex specifications, many varieties, small batches, and special materials, it takes a long time before the production of the coil spring to complete the replacement and positioning of the mandrel; 2) due to the Due to the particularity of the material of the coil spring parts in the aero-engine, it is difficult to control the rebound coefficient accurately by manual. It is not controlled, and manual repair is required in the later stage, and the excessive force applied to the workpiece during the forming process may easily cause the material to break and cause the product to be scrapped; if the applied force is too small, the pitch of the coil spring will increase, which cannot meet the later use requirements , the existing technology in the coil spring forming process cannot satisfy the control of the force. In the later stage, manual intervention is required to put the part into a special mold for correction. This process is still used in some occasions, and there are high scrap rates and output of processed products. Unstable features.

Utility model content

In order to solve the problems of long preparation time for coil spring processing and difficult control of coil spring pitch in the prior art, the purpose of this utility model is to provide a rapid prototyping equipment for aero-engine coil spring parts, which can lift the mandrel for disassembly and positioning through a locking device The efficiency is high, the sliding of the guide module against the plate is controlled by the motor, so that the plate is subjected to a reverse force, so that the inner part of the coil spring is tightened on the mandrel.

In order to achieve the above purpose, the utility model adopts the following technical solutions: a rapid prototyping equipment for aero-engine coil spring parts, including a workbench, on which a locking device capable of active rotation is installed, and the lower end of the mandrel is inserted into the The locking device, the locking device includes a plurality of compression blocks arranged around the rotation center of the locking device, the plurality of compression blocks can move simultaneously to hold and fix the lower ends of the mandrels inserted inside the plurality of compression blocks, the core The upper end of the rod is provided with a clamping groove that is plugged into the plate, and a guide module that can move horizontally is installed on the workbench. The guide module is recessed to form an arc-shaped forming surface. When the plate is formed into a coil spring, the plate is stressed. After bending, it can contact the forming surface and slide along the forming surface to gradually deform. The expansion angle of the forming surface is not less than 30°. In this way, the fast positioning and replacement of the mandrel is completed through the locking device, so that the mandrel is closely matched with the locking device, and when the plate is formed into a coil spring, the plate can be against the forming surface of the guide module and slide along the forming surface , so that the distance between the guide module is guided and shaped, and because the plate and the guide module slide relative to each other, the guide module provides a force opposite to the movement direction of the plate, and then the inner part of the coil spring is gradually tightened until it is tightened on the mandrel , which in turn improves the control of the coil spring pitch.

Preferably, it also includes a first servo motor and a second servo motor, the first servo motor is connected with the locking device and drives the locking device to rotate, and the second servo motor is connected with the guide module and drives the guide module to slide. In this way, by controlling the first servo motor and the second servo motor, each component can be controlled accurately according to the rebound coefficient and material specification of different materials, and the one-time automatic forming process of the coil spring parts in the aero-engine can be realized quickly and accurately.

Preferably, the locking device further includes a locking disc and a plurality of pin shafts, the locking disc is horizontally rotatable and installed on the workbench, the first servo motor is connected with the locking disc, and the central position of the locking disc is formed by a downward depression. In the accommodation space, a plurality of compression blocks and a plurality of pin shafts are arranged around the accommodation space. The plurality of compression blocks correspond to the plurality of pin shafts one by one. The tight disc is slidably connected and can drive the other end of the pressing block to swing into or out of the accommodation space. Simplify the installation process of the mandrel. The locking device drives multiple compression blocks to hold the mandrel inserted into the accommodation space tightly, and automatically aligns the mandrel and the locking disc, thereby realizing quick replacement and automatic alignment of the mandrel. middle.

Preferably, the pin shaft slides around the accommodating space, the end of the compression block connected to the locking disc is the connection end, the other end of the compression block is the compression end, and the thickness of the compression block gradually increases from the connection end to the compression end. big. Such an arrangement makes the movement track of each component more regular, and reduces the difficulty of positioning and manufacturing of each component.

Preferably, the pin shaft is a magnetic pin, and the material of the pressing block is metal. With such an arrangement, it is not necessary to additionally arrange components for the reset of the pressing block, which makes the structure of the device simpler and more reliable.

As preferably, the slide block that can slide along the left and right directions is installed on the workbench, the first mount seat that can slide along the front and rear direction is installed on the slide block, the guide module is installed on the first mount seat, the second servo motor and the slide block Connected, the slider is equipped with a second hand wheel for driving the first mounting seat, and the expansion angle of the molding surface is not greater than 90°. In this way, the reaching and installation difficulty of each component is reduced.

As preferably, the slider is threaded with a first screw, the first screw is connected with the second servo motor; The wheel is installed on the second screw mandrel.

Preferably, at least one side of the guide module has a smooth transition to the molding surface. In this way, excessive bending angle of the plate is avoided to cause stress fracture.

Preferably, the equipment further includes a first roller set and a second roller set installed on the workbench for flattening the plate, the first roller set and the second roller set are oppositely arranged, and one end of the plate passes through the first roller After the group and the second roller group can be plugged into the clamping groove of the mandrel. In this way, the plate is flattened between the bending of the plate, so that the forming process of the coil spring is more stable.

Preferably, the equipment further includes a feeding device for pushing the plate, a cutting device for separating the coil spring from the plate, and a discharge device for taking out the coil spring. In this way, the degree of automation of equipment can be improved

Due to the adoption of the above technical scheme, the utility model can quickly complete the replacement and centering positioning of the mandrel, and in the process of forming the coil spring from the plate, it controls the forming of the coil spring and applies force. Continuous corrections are made to make the parts be wound precisely, so that the inner part of the coil spring can be tightened on the mandrel, which can quickly and accurately realize the one-time automatic forming process of the coil spring parts in the aero-engine, and improve the production efficiency and Yield rate.

Description of drawings

Fig. 1 is the structural representation (before coil spring forming) of aero-engine coil spring parts rapid prototyping equipment in the utility model;

Figure 2 is an enlarged view of A in Figure 1;

Fig. 3 is the structural representation (after the coil spring molding) of aero-engine coil spring parts rapid prototyping equipment in the utility model;

Figure 4 is an enlarged view at B in Figure 3;

Fig. 5 is the structural representation of pitch shaping device;

Fig. 6 is a structural schematic diagram of another angle of the pitch shaping device;

Fig. 7 is a schematic structural view of the slider, the first mounting seat, the guide module and the first roller group;

Fig. 8 is the structural representation of locking device;

Figure 9 is a schematic structural view of the locking device;

Fig. 10 is a schematic structural view of the locking disc;

Fig. 11 is a schematic structural view of a shrink disc at another angle;

Fig. 12 is the structural representation of mandrel;

Fig. 13 is the structural representation of compaction block;

Fig. 14 is a structural schematic diagram of the adjustment seat;

Fig. 15 is a schematic structural diagram of the guide module.

Reference signs: 1, workbench; 2, locking device; 21, adjusting seat; 211, cavity; 212, second opening; 22, worm; 221, end cover; 23, worm wheel; 24, locking disc; 241. Accommodating space; 242. Avoidance groove; 243. Limiting hole; 244. Connection part; 245. Installation part; 25. Pin shaft; 26. Compression block; 261. Connection end; , gland; 271, peephole; 28, first hand wheel; 3, pitch shaping device; 31, mounting plate; 311, sliding track; 32, second servo motor; 321, first screw rod; 33, slide Block; 331, threaded hole; 332, the first sliding block; 333, sliding groove; 334, driving groove; 335, the second screw mandrel; 336, the second handwheel; 34, the first mounting seat; 341, driving Plate; 342, support plate; 3421, limit port; 343, limit plate; 35, first roller group; 36, guide module; 361, forming end; 3611, forming surface; 37, second mounting seat; 38, The second roller group; 4, controller; 5, mandrel; 51, clip groove; 52, winding end; 53, limit end; 54, fixed end; 6, plate; 7, coil spring.

detailed description

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", The orientation or positional relationship indicated by "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" etc. is based on The orientation or positional relationship shown in the accompanying drawings is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood To limit the utility model.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more, unless otherwise clearly defined.

In this utility model, unless otherwise specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

In the present invention, unless otherwise clearly specified and limited, a first feature being "on" or "below" a second feature may include direct contact between the first and second features, and may also include the first and second features being in direct contact with each other. The features are not in direct contact but through another feature between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

The orientation described in the following embodiments is based on Figure 1. In Figure 1, the workbench is set horizontally, the side where the mandrel is located is 'left', the side where the servo motor is located is 'right', and the side where the second roller group is located is 'front'.

Example

A rapid prototyping equipment for aero-engine coil spring parts as shown in Figures 1-4 and Figure 9, includes a workbench 1 on which a locking device 2 capable of active rotation is installed, and the lower end of the mandrel 5 is inserted into the lock Tightening device 2, locking device 2 comprises a plurality of compression blocks that are arranged around the rotation center of locking device 2, and a plurality of compression blocks 26 can move simultaneously and hold the lower end of mandrel 5 inserted in a plurality of compression blocks 26 inner sides Tighten and fix, the upper end of the mandrel 5 is provided with a clamping groove 51 that is inserted into the plate, and the guide module 36 that can move horizontally is installed on the workbench 1, and the guide module 36 is recessed to form an arc-shaped molding surface 3611. In the process of forming a coil spring, the plate can be bent against the forming surface 3611 and slide along the forming surface 3611 to gradually deform after bending under force. The angle of the forming surface is {30°-90°}. In this way, the fast positioning and replacement of the mandrel is completed through the locking device, so that the mandrel is tightly matched with the locking device, and when the plate is formed into a coil spring, one end of the material is inserted into the clamping groove of the mandrel, and the mandrel is pre-rotated The plate is pre-bent at 90°, and the guide module at the latter end makes the forming surface of the guide module contact the curved part of the plate, and then the mandrel actively rotates to drive the plate to bend, and adjusts the position of the guide module in the left and right direction, so that the guide module is far away from the mandrel. The plate is wound around the mandrel to form a coil spring; wherein, during the coil spring forming process, the coil spring is always against the forming surface, slides and deforms along the arc-shaped forming surface on the guide module, the guide module has a guiding function, and the coil spring 7 is subjected to two opposite forces from the mandrel 5 and the guide module 36, so that the inner part of the coil spring 7 is gradually tightened, thereby improving the control of the pitch of the coil spring, and can quickly and accurately realize the coiling of the aero-engine The one-time automatic forming process of spring parts improves the production efficiency and yield rate of coil springs.

In order to facilitate the overall installation of the equipment, as shown in Figure 1 and Figure 3, the rapid prototyping equipment for the coil spring parts of the aero-engine also includes a pitch shaping device 3, and the pitch shaping device 3 includes a first roller group 35, a second roller group 38, The second servo motor 32 and the guide module 36, the first roller group 35 and the second roller group 38 are arranged oppositely and are used for flattening the plate, the first roller group 35 is positioned at the rear of the second roller group 38, the first roller group 35 and The second roller set 38 is located on the right side of the locking device 2 . The pitch shaping device 3 also includes a mounting plate 31, the first roller set 35, the second servo motor 32 and the guide module 36 are all mounted on the mounting plate 31, and the mounting plate 31 is fixed on On the workbench 1, a plurality of rollers in the second roller group 38 are rotatably mounted on the second mounting base 37, the second mounting base 37 is fixed on the workbench 1, and the second mounting base 37 is located on the mounting plate 31. ahead. In this way, each part of the equipment can be assembled separately and installed on the workbench, which facilitates the production and molding of the equipment, reduces the cost of the equipment, facilitates later maintenance and maintenance, and can continuously adjust the guide module through the second servo motor. The force on the plate improves the yield rate of parts and the stability of molding, reduces the rate of manual intervention, and improves production efficiency.

As shown in Figures 5-7, in this embodiment, the pitch shaping device 3 also includes two sliding rails 311 extending in the left and right directions, the two sliding rails 311 are fixed on the mounting plate 31, and the two sliding The rails 311 are arranged front and back, and the first sliding block 332 is slidably installed on the two sliding rails 311, and the two sliding blocks 332 are fixed on the bottom of the sliding block 33, and the second servo motor 32 is installed on the mounting plate 31 , the second servo motor 32 is located on the right side of the sliding track 311, the output end of the second servo motor 32 is equipped with a first screw mandrel 321, and the first screw mandrel 321 is threadedly connected with the threaded hole 331 provided on the slider 33, In this way, by starting the second servo motor 32 to drive the screw to rotate, the moving distance of the slider can be precisely controlled; the top of the slider 33 is provided with two sliding grooves 333 extending in the front and rear directions, and the two sliding grooves 333 are arranged left and right , the second sliding block is slidably installed in the two sliding grooves 333, and the two second sliding blocks are fixedly connected with the bottom of the first mount 34, and the top of the sliding block 33 is provided with a driving groove 334, the driving groove 334 is located between the two sliding grooves 333, the rear side of the first mount 34 is fixed with a driving plate 341, the bottom of the driving plate 341 extends downwards into the driving groove 334, and the second screw rod is mounted on the slider 33 for rotation 335, the second screw rod 335 passes through the drive slot 334, the second screw rod 335 runs through the drive plate 341 in the front and rear direction and is screwed with the drive plate 341, the rear end of the second screw rod 335 is installed for driving the first The second hand wheel 336 rotated by the second screw mandrel 335, the left end of the first mount 34 that the guide module 36 can be detachably installed, and the rollers in the first roller group 35 are installed on the front end of the first mount 34 through the rotation of the roller shaft respectively. A group of 35 rollers is located on the right side of the guide module 36; in this way, the movement of the guide module can be precisely controlled by the screw mandrel, and the first roller group can follow the movement of the guide module. On the one hand, the gap between the first roller group and the second roller group The gap between them is adjustable, which is convenient for forming plates with different specifications, and on the other hand, it can simplify the structure of the pitch shaping device.

In other embodiments, the second servo motor 32 and the slider 33 may be connected through an engaged rack and pinion, and then the second servo motor drives the slider to move; the rear end of the second screw rod may also be connected to the motor, The rotation of the second screw mandrel is driven by the motor.

As shown in Figures 1 and 3, in this embodiment, a controller 40 is also installed on the workbench 10, and the plate is pre-bent through the mandrel 50 first, and then the guide module 306 installed on the slider 303 is manually rotated The second screw rod 3035 adjusts the forming surface 03611 of the guide module 306 to fit the curved part of the plate, and at the same time adjusts the first roller set 305 and the second roller set 308 to the state of sticking to the surface of the plate, and the servo motor 302 receives After the positioning parameters transmitted by the digital controller 40, according to the rebound coefficient of the plate, the servo motor 40 drives the first screw rod 0321 to drive the slider 304 away from the mandrel 50 and adjusts it in real time, thereby ensuring the forming effect of the coil spring.

As shown in Fig. 2, Fig. 4 and Fig. 5, in order to improve the yield rate of the coil spring, it is necessary to prevent the longitudinal runout of the plate 6 during the forming process. edge, the front end of the first mounting seat 34 is fixedly installed with a limit plate 343, and the limit plate 343 is located below the roller flange; Pass through, wherein the front and rear ends of the plate 6 are respectively opposed to a plurality of rollers in the first roller set 35 and a plurality of rollers in the second roller set 38, the first roller set 35 and the second roller set 38 flatten the plate 6, The upper and lower ends of the plate 6 are located between the roller flange and the limit plate to prevent the coil spring from being unqualified after being formed due to the radial runout of the plate, requiring manual correction. Further preferably, the flanged rollers of the first roller set 35 can slide up and down along the roller shaft. In this way, the specifications of the coil springs that the equipment can produce are expanded, and the applicability of the equipment is improved.

In other embodiments, all the rollers in the first roller set have flanges, and all the rollers in the first roller set can slide along the roller shaft.

As shown in Fig. 2, Fig. 4, Fig. 5 and Fig. 6, in order to provide the adaptability of the equipment, in this embodiment, the guide module 36 is detachably installed on the first mounting seat 34, so that it can be more flexible with different requirements. The spring can be replaced with a different guide module. Further preferably, a support plate 342 is fixedly installed on the left end of the first mounting seat 34 through fasteners, the bottom of the front end of the support plate 342 is provided with a limit opening 3421, and the rear end of the guide module 36 is in contact with the limit opening 3421 of the support plate 342. fit, and the guide module 36 is fixed on the support plate 342 by fasteners. In this way, the installation efficiency of the guide module and the accuracy of the installation position are improved.

As shown in Figure 2, Figure 4 and Figure 15, in order to ensure the pitch of the coil spring, in this embodiment, the plate 6 can be pressed against the front end of the guide module 36 after being bent under force, and the end of the guide module 36 that is opposed to the plate 6 is formed. end 361, the left part of the forming end 361 near the mandrel 5 is recessed to form a forming surface 3611, and the forming surface 3611 and the right part of the forming end 361 are smoothly transitioned; in this way, it is convenient for the production of the guide module, while improving the pitch accuracy of the coil spring, Makes the coil spring forming process smooth.

In other embodiments, the maximum expansion angle of the forming surface is not less than 90°. In other embodiments, the mandrel can be located inside the forming surface, and the relative position between the mandrel and the forming surface is constantly adjusted by the servo motor during the coil spring forming process. position, so that the coil spring is gradually formed inside the arc-shaped forming surface. However, this will increase the difficulty of controlling the equipment and have high requirements for the accuracy of each component of the equipment.

As shown in Figures 8 and 9, in this embodiment, the locking device 2 includes a locking disc 24, a plurality of pin shafts 25 and a plurality of pressing blocks 26, and the locking disc 24 is horizontally rotated and installed in the working position. table 1, and the locking disc 24 is connected with the first servo motor installed on the workbench 4, a plurality of pressing blocks 26 and a plurality of pin shafts 25 are arranged around the rotation center of the locking disc 24, and a plurality of pressing The tight block 26 is in one-to-one correspondence with a plurality of pin shafts 25. The inner side of the plurality of tight block 26 is an accommodating space 341 for inserting the mandrel 5. One end of the tight block 26 is rotationally connected with the locking disk 24, and the pin shaft 25 is slidably connected with the locking disc 24 and can drive the pressing 26 to rotate.

Preferably in this embodiment, as shown in Figures 9 and 13, one end of the compression block 26 connected to the locking disk 24 is a connection end 261, and the other end of the compression block 26 is a compression end 262, and the compression block 26 The thickness gradually increases from the connection end 261 to the compression end 262 , the pin shaft 25 slides around the rotation center of the locking disc 24 , the pin shaft 25 is located outside the connection end 261 on the compression block 26 and abuts against the compression block 26 . In this way, the movement track of the pin shaft and the pressing block is simplified, and the positioning, manufacture and installation of each component are facilitated.

In other embodiments, different from the movement track of the pin shaft in this embodiment, in other embodiments, the pin shaft slides in the accommodating space, and then pushes the compression block, so that the compression block surrounds it and the locking disc The joint is rotated so that the pressing end of the pressing block swings into the accommodation space, and then the mandrel is tightly embraced.

As shown in Figures 8-13, in this embodiment, preferably, the locking disc 24 is fixed on the adjustment base 21, and the adjustment base 21 is rotatably mounted on the workbench 1 and connected with the first servo motor, and the bottom of the locking disc 24 protrudes There is a connecting part 244, which is inserted into the middle hole of the worm wheel, and the connecting part 244 will horizontally rotate the worm wheel 23 on the bottom of the locking disc 24 through the bearing, and the worm wheel 23 and the worm screw 22 which is rotatably installed on the adjustment seat 21 Engaging transmission, the locking disc 24 is provided with a plurality of limiting holes 243 around the rotation center of the locking disc 24, and the plurality of limiting holes 243 correspond to a plurality of pin shafts 25 one by one, and the pin shafts 25 pass through the limiting The hole 243 , the pin shaft 25 is slidingly matched with the limiting hole 243 , and the bottom of the pin shaft 25 is fixedly connected with the worm wheel 23 . In this way, the worm gear has a self-locking effect, and can hold and lock the mandrel tightly. Further, a first handwheel 28 is installed at one end of the worm 22 . In other embodiments, the worm can be driven by a motor.

Preferably in this embodiment, as shown in Figures 8-13, the central position of the locking disc 24 is recessed downwards to form an accommodating space 241, and the top of the locking disc 24 is provided with a plurality of avoidance grooves 242 arranged around the accommodating space 241 , a plurality of avoidance grooves 242 are all in communication with the accommodation space 241, and the plurality of avoidance grooves 242 correspond to a plurality of limiting holes 243 one by one. The portion between the limiting hole 243 and the accommodating space 241 on the disk 24 is a limiting part, the connecting end 261 of the pressing block 26 is connected with the top of the limiting part of the locking disc 24 in rotation, and the top of the locking disc 24 There is a ring-shaped installation part protruding, and the installation part 245 is pressed on the adjustment seat and can be fixedly connected by fasteners. The top of the installation part 245 is fixed with a gland 27, and the gland 27 is located in the avoidance groove 242 and a plurality of compression plates. 26 and a plurality of pin shafts 25 , the gland 27 is provided with a through hole allowing the lower end of the mandrel 5 to be inserted into the accommodating space 241 . In this way, the pin shaft and the compression block are installed in the locking disc through the gland, so that the appearance of the mandrel locking device is more concise, the pin shaft and the compression block have a stable working environment, and the service life of the device is improved. , to maintain the locking effect of the device.

In this embodiment, preferably, as shown in FIG. 8 , peepholes 271 corresponding to the plurality of limiting holes 243 are opened on the gland 27 , and the pin shafts extend upward into the peepholes 271 . With such arrangement, the moving position of the pin shaft can be clearly observed, and damage to the device caused by over-adjustment can be avoided. Further, both the limiting hole 243 and the peep hole 271 are waist-shaped holes. In this way, the movement track of the pin shaft can be limited, and force can be given to the pin shaft from the side, so as to avoid the pin shaft from being separated from the worm due to excessive force.

In this embodiment, as shown in FIG. 14 , the inside of the adjustment seat 21 has a cavity 211 , the top of the adjustment seat 21 has a first opening communicating with the cavity 211 , and the side of the adjustment seat 21 is provided with a cavity 211 for communication. 8 and 9, one end of the worm 22 is inserted into the adjustment seat 21 through the second opening and is rotatably connected with the adjustment seat 21 through the end cover. The locking disc 24 has a limit protrusion, The bottom of the locking disc 24 is inserted into the cavity 211 of the adjusting seat 21 through the first opening, and the worm gear 23 mounted on the bottom of the locking disc 24 is rotated to engage with the worm 22 rotatingly installed on the adjusting seat 21. The protrusion is pressed on the adjusting seat 21. Such setting provides a relatively airtight environment for the movement of the mandrel locking device, improving the service life and precision of the device.

In this embodiment, as shown in FIG. 9 and FIG. 13 , the pressing block is arc-shaped, and the thickness of at least half of the section of the pressing block is greater than the wall thickness of the upper limit portion of the locking disc 24 . Such setting improves the applicability of the mandrel locking device and the stability of the clamping.

In this embodiment, the pin shaft 25 is a magnetic pin, the material of the compression block 26 is metal, and the outer surface of the compression block 26 is adsorbed on the pin shaft 25, and the pin shaft 25 can slide on the outer surface of the compression block 26 when moving. Drive the pressing block 26 to swing. With such an arrangement, the compacting block and the pin shaft are attracted to each other, so that the compacting block is always attached to the pin shaft, and the compacting block moves along with the pin shaft, thereby improving the replacement efficiency of the mandrel. In other embodiments, a return spring is installed between the pressing block and the locking disc to automatically reset the pressing block.

In this embodiment, as shown in Figure 8-12, the upper end of the mandrel 5 is the winding end 52, the lower end of the mandrel 5 is the fixed end 54, and the middle position of the mandrel 5 protrudes outward as the limit end 53 , the clamping groove 51 is arranged on the side of the winding end 52, the fixed end 54 is inserted into the accommodating space 241 and fixed by the pressing block 26, and the limiting end 53 is pressed on the gland 27 for Limit the insertion depth of the mandrel 5 into the locking device 2 .

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structures, materials or features are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be construed as limitations of the present invention. The above-mentioned embodiments can be changed, modified, replaced and modified within the scope of the present utility model under the principle and purpose.

Claims (10)

1. A rapid prototyping equipment for aero-engine coil spring parts, comprising a workbench (1), characterized in that: a locking device (2) capable of active rotation is installed on the workbench (1), and the lower end of the mandrel (5) is inserted into The locking device (2), the locking device (2) includes a plurality of compression blocks arranged around the center of rotation of the locking device (2), and the plurality of compression blocks (26) can move simultaneously to be inserted in a plurality of compression blocks. The lower end of the mandrel (5) inside the tight block (26) is tightly hugged and fixed, and the upper end of the mandrel (5) is provided with a clamping groove (51) that can connect the inner part of the coil spring, and is installed on the workbench (1). The guide module (36) that moves in the left-right direction and the front-back direction, the guide module (36) is used to control the pitch of the coil spring, the guide module (36) is provided with an arc-shaped forming surface (3611), and the arc-shaped forming surface ( 3611) can abut against and slide relative to the outer portion of the coil spring. 2. A kind of rapid prototyping equipment for aero-engine coil spring parts according to claim 1, characterized in that: it also includes a first servo motor and a second servo motor (32), the first servo motor and the locking device (2) connected and drives the locking device (2) to rotate, and the second servo motor (32) is connected to the guide module (36) and drives the guide module (36) to slide. 3. A kind of rapid prototyping equipment for aero-engine coil spring parts according to claim 2, characterized in that: the locking device (2) also includes a locking disc (24) and a plurality of pin shafts (25), the lock The tightening disc (24) is installed on the workbench (1) by horizontal rotation, the first servo motor is connected with the locking disc (24), and the central position of the locking disc (24) is provided with an accommodating space (241). Block (26) and a plurality of bearing pins (25) are arranged around accommodating space (241), and a plurality of pressing blocks (26) correspond to a plurality of bearing pins (25) one by one, and one end of pressing block (26) and The locking disc (24) is rotatably connected, and the pin shaft (25) is slidingly connected to the locking disc (24) and can drive the other end of the pressing block (26) to swing so as to enter and exit the accommodating space (241). 4. A kind of rapid prototyping equipment for aero-engine coil spring parts according to claim 3, characterized in that: the pin shaft (25) slides around the accommodating space (241), and the pressing block (26) and the locking disc (24 ) is the connection end (261), the other end of the compression block (26) is the compression end (262), and the thickness of the compression block (26) is gradually from the connection end (261) to the compression end (262). increase. 5. The rapid prototyping equipment for aero-engine coil spring parts according to claim 3, characterized in that: the pin shaft (25) is a magnetic pin, and the material of the pressing block (26) is metal. 6. A kind of rapid prototyping equipment for aero-engine coil spring parts according to claim 2, characterized in that: a slide block (33) capable of sliding in the left and right directions is installed on the workbench (1), and on the slide block (33) The first mounting seat (34) that can slide along the front and rear direction is installed, and the guide module (36) is installed on the first mounting seat (34), and the second servo motor is connected with the slide block (33), and on the slide block (33) A second hand wheel (336) for driving the first mount (34) is installed. 7. A kind of rapid prototyping equipment for aero-engine coil spring parts according to claim 6, characterized in that: the slide block (33) is threadedly connected with a first screw mandrel (321), and the first screw mandrel (321) is connected to the first screw mandrel (321) Two servo motors (32) are connected; the second screw mandrel (335) is installed on the slide block (33), the second screw mandrel (335) is threadedly connected with the first mount (34), and the second handwheel (336) is installed on the second lead screw (335). 8. The rapid prototyping equipment for aero-engine coil spring parts according to claim 1, characterized in that: at least one side of the guide module (36) has a smooth transition to the forming surface (3611). 9. A kind of rapid prototyping equipment for aero-engine coil spring parts according to claim 1, characterized in that: said equipment also includes a first roller group (35) for flattening plates installed on the workbench (1) With the second roller group (38), the first roller group (35) and the second roller group (38) are relatively arranged, and one end of the plate can pass through the first roller group (35) and the second roller group (38). It is inserted into the clamping groove (51) of the mandrel (5). 10. The rapid prototyping equipment for aero-engine coil spring parts according to claim 1, characterized in that: the equipment also includes a feeding device for pushing the plate, a cutting device for separating the coil spring and the plate, And a discharge device for taking out the coil spring.

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