CN218475945U - Rapid forming equipment for aero-engine coil spring parts and core rod locking device of rapid forming equipment - Google Patents

Abstract

The utility model discloses an aeroengine coil spring part rapid prototyping equipment and plug locking device thereof, including locking dish, a plurality of compact heap and a plurality of round pin axle, locking dish central point puts the downwardly concave accommodation space that forms and is used for inserting the plug stiff end, a plurality of compact heap and a plurality of round pin axle all set up around the accommodation space, a plurality of round pin axles and a plurality of compact heap one-to-one, the compact heap is located the inboard of round pin axle and offsets with the round pin axle, the one end of compact heap is connected with locking dish rotation, the round pin axle is connected with locking dish sliding, and can drive the other end swing business turn over accommodation space of compact heap when the round pin axle slides; and then the quick disassembly and centering fixation of the core rod are completed.

Description

Rapid forming equipment for aero-engine coil spring parts and core rod locking device of rapid forming equipment

Technical Field

The utility model relates to an aeroengine field especially relates to an aeroengine wind spring part rapid prototyping is equipped and plug locking device thereof.

Background

The coil spring is used as a part used by mechanical power, continuously provides larger restoring force for each part in a narrow space of an aeroengine, and also adds balancing force for each part, so that the forming stability is required to be good. The coil spring is at the shaping winding in-process, and the initiating terminal is fixed need reliable and stable to guarantee that relative pitch is not influenced in the processing, and the mould plug that is used for fixing usually adopts clearance fit, because the traction force that material self stress and motor drive produced the plug in the shaping in-process, leads to the installation cooperation of plug to have the change influence, leads to the change of product shaping pitch, influences the finished product output quality in later stage.

Patent document CN203556694U discloses a high-strength coil spring rolling forming fixture, which comprises a mandrel and a tail handle, wherein the mandrel is arranged in a cylindrical structure, one end of the mandrel is a rolling end, and the other end of the mandrel is a connecting end; the tail handle is of a cylindrical structure, and a central mounting hole is formed in one end of the tail handle along the axial center line direction; a clamping groove is formed in the rolling end of the core rod along the axial center line direction of the core rod, and the depth direction of the clamping groove is arranged along the radial direction of the core rod; the connecting end of the core rod is positioned in the central mounting hole of the tail handle, the core rod and the tail handle are fixedly matched, and the core rod is fixedly connected with the tail handle through a pin.

The prior art has the following problems that 1) the prior art adopts a mode of tightly jacking a core rod and a tail handle by a screw to eliminate a certain gap, although the method can eliminate a certain gap, in consideration of the application of an aeroengine, due to small batch and multiple varieties, the replacement and test correction of the core rod are required to be repeatedly carried out, so that the replacement operation of the core rod is very complicated, and a core rod connecting port cannot be tightly jacked with the tail handle after being seriously abraded; 2) Meanwhile, due to the fact that the single-side screw is adopted for jacking, the concentricity of the core rod and the tail handle is difficult to guarantee, and the effect of stability on the output of parts cannot be achieved.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the plug replacement process is loaded down with trivial details among the prior art to and the plug can't with caudal peduncle automatic centering, the utility model aims to provide an aeroengine wind spring part rapid prototyping is equipped and plug locking device thereof, including the locking dish, the central point of locking dish is sunken to have the accommodation space, installs a plurality of compact heap around the accommodation space setting on the locking dish, and locking device holds tightly through the plug that drives a plurality of compact heaps will insert the accommodation space to make plug and locking dish automatic centering, and then realize the quick replacement and the automatic centering of plug.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a mandrel locking device for fixed plug, the upper end of plug has seted up the clamp groove, the lower extreme of plug with mandrel locking device pegs graft and is fixed, mandrel locking device includes locking dish, a plurality of compact heap and a plurality of round pin axle, be equipped with the accommodation space on the locking dish central point, a plurality of round pin axles and a plurality of compact heap all set up around the accommodation space, a plurality of round pin axles and a plurality of compact heap one-to-one, the compact heap is located the inboard of round pin axle, and the one end and the locking dish of compact heap rotate to be connected, round pin axle and locking dish sliding connection to thereby can drive the other end swing business turn over accommodation space of compact heap, and then will insert the plug in the accommodation space and hold tightly or release. Therefore, the installation process of the core rod is simplified, the locking device tightly holds the core rod inserted into the accommodating space by driving the plurality of pressing blocks, the core rod and the locking disc are automatically centered, and the core rod is rapidly replaced and automatically centered.

Preferably, the pin shaft is a magnetic pin, the pressing block is made of metal, and the pressing block is adsorbed on the pin shaft. By the arrangement, a component for resetting the pressing block does not need to be additionally arranged, so that the structure of the device is simpler and more reliable.

Preferably, the outer diameter of the lower end of the mandrel is larger than the outer diameter of the upper end of the mandrel, and a limit protrusion for limiting the insertion depth of the mandrel protrudes from the middle position of the mandrel. So set up, guarantee the position height of double-layered groove to improve the stability that plug and locking device are connected, improve the stability of plug in the spring forming process.

As preferred, a plurality of round pin axles all slide around the accommodation space, and the one end that compact heap and locking dish link to each other is the link, and the other end of compact heap is the end that compresses tightly, and the thickness of compact heap is followed the link and is increased gradually to compressing tightly the end. By the arrangement, the motion tracks of all the components are more regular, and the positioning and manufacturing difficulty of all the components is reduced.

Preferably, a plurality of limiting holes arranged around the accommodating space are formed in the locking disc, each limiting hole is a waist-shaped hole, the limiting holes correspond to the pin shafts one to one, and the pin shafts can slide along the limiting holes. Therefore, the positioning and the installation of the pin shaft are facilitated.

Preferably, the locking disc is fixed on the adjusting seat, a worm wheel capable of horizontally rotating is installed below the locking disc, the worm wheel and a worm rotatably installed on the adjusting seat are in meshing transmission, and the pin shaft penetrates through the limiting hole and is fixedly connected with the worm wheel. Therefore, the stability of the connection of the locking device and the core rod is improved by utilizing the self-locking function of the worm gear and the worm, the relative rotation of the core rod and the locking device in the production process of the coil spring is avoided, and the force increasing effect is achieved.

Preferably, the part of the locking disc between the limiting hole and the accommodating space is a limiting part, the pressing block is rotatably connected with the limiting part of the locking disc, the pressing block is arc-shaped, and at least half of the thickness of the pressing block is larger than that of the limiting part. Therefore, the locking device can be adapted to the core rods with more specifications.

As preferred, be equipped with a plurality of grooves of dodging that set up around the accommodation space on the locking dish, a plurality of grooves of dodging all communicate with the accommodation space, a plurality of grooves of dodging and a plurality of spacing hole one-to-one, the compact heap can be in dodging the inslot swing. In this way, the device is made more compact.

Preferably, a gland which is covered by the avoiding groove and the accommodating space is fixed on the locking disc, a through hole is formed in the gland, and the lower end of the core rod can penetrate through the through hole of the gland to be inserted into the accommodating space of the locking disc.

A quick forming device for a coil spring part of an aero-engine comprises the core rod locking device.

The utility model adopts the above technical scheme, locking device fixes the plug through the mode of holding tightly, has not only eliminated the clearance between new edition and the locking device, has reduced the complexity that the plug was changed moreover, realizes the function of the automatic centering of plug, improves the reliability of the assembly of plug in the spring forming process of aeroengine, makes locking device can match with the plug of multiple specification, can promote the shaping precision of spring, increases the stability in the spring forming process; after the core rod is fixed, the automatic centering function of the core rod is realized, the position eccentricity of the core rod is avoided, and the output quality of finished products in the later stage is improved.

Drawings

Fig. 1 is a schematic structural view of a core rod locking device of the present invention;

FIG. 2 is a schematic structural view of the mandrel locking device with the gland and the adjustment seat removed;

FIG. 3 is a schematic structural view of the mandrel locking device with the gland, the adjustment seat and the locking disc removed;

FIG. 4 is a schematic view of the connection structure of the lock keyboard, the pin shaft, the pressing block and the worm wheel;

FIG. 5 is a schematic view of the locking plate;

FIG. 6 is a schematic view of a locking disk at another angle;

FIG. 7 is a schematic view of the structure of the mandrel;

FIG. 8 is a schematic structural view of a compact block;

fig. 9 is a schematic structural view of the adjusting seat.

Reference numerals are as follows: 201. an adjusting seat; 2011. a cavity; 2012. a second opening; 2013. a first opening; 202. a worm; 2021. an end cap; 203. a worm gear; 204. a locking disc; 2041. an accommodating space; 2042. an avoidance groove; 2043. a limiting hole; 2044. a connecting portion; 205. a pin shaft; 206. a compression block; 2061. a connecting end; 2062. a compression end; 207. a gland; 2071. a peephole; 208. a hand wheel; 50. a core rod; 501. a clamping groove; 502. a winding end; 503. a limiting end; 504. and a fixed end.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary intended for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

Examples

The mandrel locking device shown in fig. 1 to 8 is used for fixing a mandrel 50, a clamping groove 501 is formed in the upper end of the mandrel 50, the lower end of the mandrel 50 is inserted into and fixed to the mandrel locking device, the mandrel locking device includes a locking disc 204, a plurality of pressing blocks 206 and a plurality of pins 205, an accommodating space 2041 is formed in the central position of the locking disc 204, the plurality of pins 205 and the plurality of pressing blocks 206 are all arranged around the accommodating space 2041, the plurality of pins 205 correspond to the plurality of pressing blocks 206 one to one, the pressing blocks 206 are located inside the pins 205, one end of each pressing block 206 is rotatably connected with the locking disc 204, the pins 205 are slidably connected with the locking disc 204, and the other end of each pressing block 206 can be driven to swing so as to enter and exit the accommodating space 2041, and then hold or release the mandrel 50 inserted into the accommodating space 2041. In the scheme, the core rod is encircled by the plurality of pressing blocks and is fixed by multiple points, so that the fixed strength of the core rod is higher, the stress is more uniform, the core rod can be matched with the core rods with various specifications, the core rod replacement process is simplified, the core rod is convenient to replace quickly, and the damage to the core rod is reduced; the clearance between the locking device and the core rod can be eliminated, the radial movement of the core rod in the forming process of the coil spring is avoided, the forming precision of the coil spring can be improved, and the stability in the forming process of the coil spring is improved; after the fixing of the core rod is completed, the automatic centering of the core rod can be realized, the position eccentricity of the core rod is avoided, and the qualified rate of products is improved.

The core rod locking device comprises a locking disc 204, a plurality of pressing blocks 206 and a plurality of pin shafts 205, the central position of the locking disc 204 is depressed downwards to form an accommodating space 2041 for inserting the core rod fixing end 502, the plurality of pressing blocks 206 and the plurality of pin shafts 205 are all arranged around the accommodating space 2041, the plurality of pin shafts 205 correspond to the plurality of pressing blocks 206 one by one, the pressing blocks 206 are positioned at the inner side of the pin shafts 205 and are abutted against the pin shafts 205,

as shown in fig. 2 and 4, in this embodiment, the pin shaft 205 is a magnetic pin, the pressing block 206 is made of metal, the outer side surface of the pressing block 206 is adsorbed on the pin shaft 205, and the pin shaft 205 can slide on the outer side surface of the pressing block 206 and drive the pressing block 206 to swing. So set up, compact heap 206 and round pin axle 205 adsorb each other for compact heap 206 is laminated with round pin axle 205 all the time, and makes compact heap 206 follow round pin axle 205 and remove, promotes the change efficiency of plug 50. In other embodiments, a return spring is arranged between the pressing block and the locking disc, so that the pressing block is automatically reset.

In this embodiment, as shown in fig. 1 to 4, the mandrel locking device further includes an adjusting seat 201, a worm wheel 203 and a worm 202, the worm 202 is rotatably connected to the adjusting seat 201, the worm 202 is in meshing transmission with the worm wheel 203 and can drive the worm wheel 203 to horizontally rotate, a locking disc 204 is fixed on the adjusting seat 201, a connecting portion 2044 protrudes downward from a central position of the locking disc 204, the connecting portion 2044 of the locking disc 204 is inserted into a central hole of the worm wheel 203 and is rotatably connected through a bearing, a plurality of limiting holes 2043 are formed in the locking disc 204, the plurality of limiting holes 2043 correspond to the plurality of pins 205 one by one, bottoms of the plurality of pins 205 are all fixed on the worm wheel 203, the plurality of pins 205 extend upward and respectively pass through the plurality of limiting holes 2043, wherein the limiting holes are waist-shaped holes, and the pins rotate around the accommodating space. So set up, through the auto-lock characteristic of worm wheel and worm, will stabilize stable locking of plug on the locking dish.

In other embodiments, what is different from the sliding of the pin around the accommodating space in this embodiment is: the side of the pin axial containing space is far away from or close to the side, and then the other end of the pin pushing pressing block swings towards the inside or the outside of the containing space, so that the holding and releasing of the core rod are realized.

As shown in fig. 2 and fig. 4, in order to ensure the adaptability of the locking device, in this embodiment, since one end of the pin shaft compression block 206 connected to the locking disk is a connection end 2061, and the other end of the compression block 206 is a compression end 2062, the thickness of the compression block 206 gradually increases from the connection end 2061 to the compression end 2062. So set up, make locking device can match the plug of more specifications.

In this embodiment, as shown in fig. 9, a cavity 2011 is formed inside the adjustment seat 201, a first opening 2013 communicated with the cavity 2011 is formed at the top of the adjustment seat 201, a second opening 2012 communicated with the cavity 2011 is formed on a side surface of the adjustment seat 201, as shown in fig. 1 to 6, one end of the worm 202 is inserted into the adjustment seat through the second opening 2012 and is rotatably connected with the adjustment seat 201 through an end cover 2031, a flange 2045 is formed on the periphery of the top of the locking disk 204, the bottom of the locking disk 204 is inserted into the cavity 2011 of the adjustment seat 201 through the first opening 2013, and the flange 2045 of the locking disk 204 presses FANG on the adjustment seat 201. Therefore, a relatively closed environment is provided for the movement of the core rod locking device, and the service life and the precision of the device are improved. In this embodiment, a hand wheel is fixed to one end of the worm. In other embodiments, the worm is connected with a motor, and the motor can drive the worm to drive the worm wheel to rotate, and the worm wheel drives the pin shaft to slide, so that the core rod is locked and released.

In this embodiment, as shown in fig. 6 and 7, a plurality of avoiding grooves 2042 are formed in the top of the locking disk 204 and arranged around the accommodating space 2041, the plurality of avoiding grooves 2042 are all communicated with the accommodating space 2041, the depth of the accommodating space 2041 is greater than that of the avoiding grooves 2042, the plurality of avoiding grooves 2042 correspond to the plurality of limiting holes 2043 one by one, the limiting holes 2043 extend upward from the bottom of the locking disk 204 and communicate with the avoiding grooves 2042, a portion of the locking disk 204 located between the limiting holes 2043 and the accommodating space 2041 is a limiting portion, as shown in fig. 2 and 4, a connecting end 2061 of the pressing block 206 is rotatably connected to a top end of the limiting portion of the locking disk 204, the pin 205 penetrates through the limiting hole 2043 and extends into the limiting groove 2042, a pressing cover 207 is fixed to the top of the locking disk 204, the pressing cover 207 is located above the avoiding groove 2042, the plurality of pressing plates 206 and the plurality of pin 205, a through hole 504 with the accommodating space 2041 is formed in the pressing disk 207, and a fixing portion of the core rod 50 can coaxially penetrate through hole 204 and be inserted into the accommodating space 2041. So set up, all install round pin axle and compact heap in the locking dish through the gland, make plug locking device's outward appearance more succinct, make round pin axle and compact heap have stable operational environment, improve the life of device, keep device's locking effect.

In this embodiment, as shown in fig. 2, 4 and 8, the pressing block 206 is arc-shaped, and the thickness of at least one half section of the pressing block 206 is greater than the wall thickness of the limiting portion on the locking disk 204. By the arrangement, the applicability and the holding stability of the mandrel locking device are improved.

In this embodiment, as shown in fig. 1, the gland 207 is further provided with a peephole 2071 corresponding to the plurality of limiting holes 2043, and the pin 205 extends upward into the peephole 2071. So set up, the shift position of observing round pin axle that can be clear avoids transition to adjust the damage that causes the device. Furthermore, the limiting hole and the peephole are both waist-shaped holes. Therefore, the moving track of the pin shaft can be limited, the acting force of the pin shaft is given from the side surface, and the situation that the pin shaft is separated from the worm due to overlarge stress of the pin shaft is avoided.

In order to provide stability for connecting the core rod and the locking device, as shown in fig. 7, in this embodiment, the upper end of the core rod 50 is a forming end 502, the clamping groove 501 is opened on the forming end 502, the lower end of the core rod 50 is a fixing end 504, the middle part of the core rod 50 is an annular limiting end 503 protruding outwards for limiting the insertion depth of the core rod 50, the outer diameter of the forming end is smaller than that of the height end, and the outer diameter of the height end is smaller than that of the limiting end; as shown in fig. 1, the fixed end of the core rod penetrates through the through hole of the gland from top to bottom and then is inserted into the accommodating space of the locking disc, and the limiting end of the core rod is pressed on the gland. So set up, because the bottom of plug is coarser for the contact surface of locking device and plug is bigger, makes the locking device more stable with being connected of plug, and spacing end is not through the height that can restrict the clamp groove, also makes the plug output insert in the accommodation space.

A quick forming device for a coil spring part of an aero-engine comprises the core rod locking device, a workbench and a thread pitch shaping device installed on the workbench.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention.

Claims (10)

1. The utility model provides a plug locking device for fixed plug (50), the upper end of plug (50) is seted up and is pressed from both sides groove (501), the lower extreme of plug (50) with plug locking device pegs graft and fixed, its characterized in that: the core rod locking device comprises a locking disc (204), a plurality of pressing blocks (206) and a plurality of pins (205), an accommodating space (2041) is formed in the central position of the locking disc (204), the plurality of pins (205) and the plurality of pressing blocks (206) are arranged around the accommodating space (2041), the plurality of pins (205) correspond to the plurality of pressing blocks (206) one to one, the pressing blocks (206) are located on the inner side of the pins (205), one end of each pressing block (206) is rotationally connected with the locking disc (204), the pins (205) are connected with the locking disc (204) in a sliding mode, the other ends of the pressing blocks (206) can be driven to swing so as to enter and exit the accommodating space (2041), and then a core rod (50) inserted into the accommodating space (2041) is held tightly or released.

2. A mandrel locking device as claimed in claim 1 wherein: the pin shaft (205) is a magnetic pin, the pressing block (206) is made of metal, and the pressing block (206) is adsorbed on the pin shaft (205).

3. A mandrel locking device as claimed in claim 1 wherein: the outer diameter of the lower end of the core rod (50) is larger than that of the upper end of the core rod (50), and a limiting bulge used for limiting the insertion depth of the core rod (50) protrudes from the middle position of the core rod (50).

4. A mandrel locking device as claimed in claim 1 wherein: a plurality of round pin axles (205) all slide around accommodation space (2041), and the one end that compact heap (206) and locking dish (204) link to each other is link (2061), and the other end of compact heap (206) is for compressing tightly end (2062), and the thickness of compact heap (206) is from link (2061) to compressing tightly end (2062) crescent.

5. A mandrel locking device according to claim 4 wherein: a plurality of limiting holes (2043) arranged around the accommodating space (2041) are formed in the locking disc (204), the limiting holes (2043) are waist-shaped holes, the limiting holes (2043) correspond to the pin shafts (205) one to one, and the pin shafts (205) can slide along the limiting holes (2043).

6. A mandrel locking device according to claim 5 wherein: locking dish (204) are fixed on adjusting seat (201), and worm wheel (203) that can the horizontal rotation is installed to locking dish (204) below, and worm wheel (203) with rotate install on adjusting seat (201) worm (202) meshing transmission, round pin axle (205) run through spacing hole (2043) and with worm wheel (203) fixed connection.

7. A mandrel locking apparatus according to claim 5 wherein: the part of the locking disc (204) between the limiting hole (2043) and the accommodating space (2041) is a limiting part, the pressing block (206) is rotatably connected with the limiting part of the locking disc (204), the pressing block (206) is arc-shaped, and at least half of the thickness of the pressing block (206) is larger than that of the limiting part.

8. A mandrel locking device according to claim 5 wherein: be equipped with a plurality of groove (2042) of dodging that set up around accommodation space (2041) on locking dish (204), a plurality of groove (2042) of dodging all with accommodation space (2041) UNICOM, a plurality of groove (2042) of dodging and a plurality of spacing hole (2043) one-to-one, compact heap (206) can be dodging the interior swing of groove (2042).

9. A mandrel locking apparatus according to claim 8 wherein: a gland (207) which is covered by the avoiding groove (2042) and the accommodating space (2041) is fixed on the locking disc (204), a through hole is formed in the gland (207), and the lower end of the core rod (50) can penetrate through the through hole of the gland and be inserted into the accommodating space (2041) of the locking disc (204).

10. The utility model provides an aeroengine coil spring part rapid prototyping is equipped which characterized in that: comprising a mandrel locking device according to any one of claims 1 to 9.

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