CN110450361B - A turbine mold composite motion mechanism - Google Patents

Abstract

The invention discloses a turbine die compound movement mechanism which comprises a frame, a bottom plate, a male die slide ejector plate, a plurality of male die slides distributed around a male die and a plurality of female die slides distributed around a female die, wherein the male die slides are overlapped with the female die slides and extend into an impeller cavity of a turbine die cavity, a plurality of female die inclined guide rails are distributed around the female die, the inclined direction of each female die inclined guide rail is inclined from the upper side to the lower side of the outer side of the turbine die cavity, the female die slides are slidably arranged on the female die inclined guide rails, and a female die slide driving mechanism for driving each female die slide to be unfolded downwards is further arranged on the female die. The invention has reasonable structural design, can bring the female die slide block and the male die slide block out of the workpiece through the matching of the oil cylinders and the nitrogen spring rods, can eject the workpiece and finish the core pulling action, has high degree of automation, effectively avoids interference on turbine parts, and has high turbine production and manufacturing precision.

Description

A turbine mold composite motion mechanism

Technical Field

The invention relates to the technical field of turbine production molds, in particular to a turbine mold composite motion mechanism.

Background Art

A turbine is a fan in a car or airplane engine that uses exhaust gases to blow fuel vapor into the engine to improve engine performance. A turbine is a rotary power machine that converts the energy of a flowing medium into mechanical work. It is one of the main components of aircraft engines, gas turbines, and steam turbines.

At present, for turbine manufacturing, the process commonly used in the industry is to first obtain the turbine blank by investment casting, and then machine the blank. The turbine mold refers to the mold that produces the wax pattern in the investment casting process. The manufacturing cost of the turbine mold is directly affected by its structure, material, and processing technology.

The existing turbine mold structure design is not reasonable enough. During the mold opening process, it is easy to cause interference with the turbine parts, resulting in roughening or damage of the cast turbine parts, and the turbine production accuracy is low.

Summary of the invention

The object of the present invention is to provide a turbine mold compound motion mechanism to solve the problems raised in the above background technology.

To achieve the above object, the present invention provides the following technical solutions:

A turbine mold composite motion mechanism, comprising a frame, a bottom plate, a punch slider ejection plate, a plurality of punch sliders distributed around the punch and a plurality of die sliders distributed around the die, the punch sliders overlap with the die sliders and extend into the impeller cavity of the turbine cavity, a plurality of die inclined guide rails are distributed around the die, the inclination direction of the die inclined guide rails is from the upper side of the turbine cavity to the lower side outside, the die sliders are slidably mounted on the die inclined guide rails, and a die slider driving mechanism for driving each die slider to unfold downward is also mounted on the die;

A plurality of vertically telescopic first oil cylinders are installed on the frame, and the telescopic rod ends of each first oil cylinder are fixedly connected to the four corner ends of the bottom plate respectively. A punch slider ejection plate is installed on the bottom plate, and a plurality of groups of support columns are fixed on the punch slider ejection plate. A punch transverse guide rail is fixed on the top of each group of support columns, and a corresponding punch slider is slidably arranged on the punch transverse guide rail.

The frame is also provided with a punch slider driving mechanism for driving each punch slider to expand outwards.

As a further solution of the present invention: the punch slider driving mechanism includes a plurality of transversely retractable second oil cylinders, the second oil cylinders are installed on the frame, the telescopic end of the second oil cylinder is connected to the punch pulling block, and a pulling block inclined surface is provided on the side of the punch pulling block away from the second oil cylinder, a punch inclined guide rail is fixed on the inclined surface of the pulling block, the inclination direction of the punch inclined guide rail is from the upper outside to the bottom of the turbine cavity, the punch slider is slidably installed on the punch inclined guide rail, and the lower end surface of the punch pulling block is also provided with a accommodating groove cavity corresponding to the punch transverse guide rail.

As a further solution of the present invention: the die slider driving mechanism includes a nitrogen spring rod, one end of the nitrogen spring rod is connected to the die, and the other end of the nitrogen spring rod is connected to the die slider.

As a further solution of the present invention: a group of guide rods are installed corresponding to each inclined guide rail of the die, the extension direction of the guide rods is parallel to the extension direction of the inclined guide rail of the die, the guide rods slide and insert into the rod sleeve inside the punch slider, and the lower end of the guide rods is fixed with a limiting ring.

As a further solution of the present invention: a punch hook is fixed in the middle of the curved surface where the punch slider and the die slider overlap, and a die hook is fixed in the middle of the curved surface where the die slider and the punch slider overlap, and the punch hook and the die hook are in sliding contact with each other through the inclined surfaces of the hooks.

As a further solution of the present invention: it also includes a die insertion mechanism, the die insertion mechanism includes a first die and a second die, the first die and the second die are overlapped and inserted into the impeller cavity of the inner wall of the turbine and contact with the front ends of the punch slider and the die slider, the first die is connected to the inclined top fixing plate through a first driving mechanism, the second die is connected to the inclined top fixing plate through a second driving mechanism, the inclined top fixing plate is arranged above the ejection plate of the punch slider, and a plurality of vertically telescopic third oil cylinders are installed on the frame, and the telescopic rod ends of each third oil cylinder are respectively fixedly connected to the four corner ends of the inclined top fixing plate.

As a further solution of the present invention: the first driving mechanism includes a tilted top guide rod, a tilted top rod, a sliding block and a fixed seat, the top end of the tilted top rod is fixedly connected to the first insert mold, the bottom end of the tilted top rod is fixedly connected to the sliding block, the fixed seat is installed on the lower end surface of the tilted top fixing plate, an installation groove is opened inside the fixed seat, and inclined guide grooves are opened on both side walls of the installation groove, the sliding block is slidably installed in the inclined guide groove through the protruding strips on both sides, and a limiting plate is fixed at the front end of the installation groove, the tilted top guide rod is movably inserted into the sliding block, the top end of the tilted top guide rod is hinged to the top guide rod seat, the top guide rod seat is fixed on the punch, the bottom end of the tilted top guide rod is hinged to the bottom guide rod seat, and the bottom guide rod seat is fixed on the bottom plate.

As a further solution of the present invention: the second driving mechanism has the same structure as the first driving mechanism, and the fixing seat of the first driving mechanism and the fixing seat of the second driving mechanism are integrally formed.

Compared with the prior art, the beneficial effects of the present invention are as follows: in the process of separating the die and the punch, the die slider is subjected to the force of the rebound of the nitrogen spring rod (the nitrogen spring rod is compressed when the mold is closed) and moves outward along the surface in contact with the punch slider until it is completely separated from the workpiece; the first oil cylinder drives the ejection plate of the punch slider to move upward, thereby driving the support column, the punch transverse guide rail and the punch slider to move upward together. After the upward movement distance exceeds the parting surface of the turbine, the second oil cylinder pulls the punch pulling block, and the punch pulling block drives the punch slider to move outward through the punch inclined guide rail until it is separated from the workpiece; the third oil cylinder drives the inclined top fixing plate to move upward, and the fixing seat on the inclined top fixing plate will also move upward, and the first and second insert molds can eject the workpiece and complete the core pulling action at the same time. The present invention has a reasonable structural design. Through the cooperation of each oil cylinder and the nitrogen spring rod, the die slider and the punch slider can be taken out of the workpiece, and the workpiece can be ejected and the core pulling action can be completed. The degree of automation is high, and interference with turbine parts can be effectively avoided. The turbine production and manufacturing precision is high.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of a turbine mold composite motion mechanism;

FIG2 is a schematic structural diagram of a punch slider in a turbine mold compound motion mechanism;

FIG3 is a schematic diagram of the structure of a turbine mold compound motion mechanism at point A;

FIG. 4 is a schematic structural diagram of a die insertion mechanism in a turbine mold compound motion mechanism.

In the figure: 100-turbine, 1-bottom plate, 11-punch slider ejection plate, 12-oblique ejection fixing plate, 13-third oil cylinder, 14-first oil cylinder, 15-support column, 16-punch transverse guide rail, 2-punch slider, 21-punch pulling block, 22-punch inclined guide rail, 23-second oil cylinder, 24-punch hook, 3-die slider, 31-die inclined guide rail, 32-guide rod, 33-nitrogen spring rod, 34-die hook, 4-first driving mechanism, 41-oblique ejector rod, 42-oblique ejector guide rod, 421-top guide rod seat, 422-bottom guide rod seat, 43-fixed seat, 431-oblique guide groove, 432-limiting plate, 44-sliding block, 5-first die, 6-second die.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

Referring to FIGS. 1 to 4 , the present invention provides a technical solution: a turbine mold composite motion mechanism, comprising a frame, a bottom plate 1, a punch slider ejection plate 11, a plurality of punch sliders 2 distributed around the punch, and a plurality of die sliders 3 distributed around the die, wherein the punch slider 2 overlaps with the die slider 3 and extends into the impeller cavity of the turbine cavity, a plurality of die inclined guide rails 31 are distributed around the die, and the inclination direction of the die inclined guide rails 31 is from the upper side of the turbine cavity to the outer side and downward, the die sliders 3 are slidably mounted on the die inclined guide rails 31, and a die slider driving mechanism for driving each die slider 3 to unfold downward is also mounted on the die;

A plurality of vertically telescopic first oil cylinders 14 are installed on the frame, and the telescopic rod ends of each first oil cylinder 14 are fixedly connected to the four corner ends of the bottom plate 1 respectively. A punch slider ejection plate 11 is installed on the bottom plate 1, and a plurality of groups of support columns 15 are fixed on the punch slider ejection plate 11. A punch transverse guide rail 16 is fixed on the top of each group of support columns 15, and a corresponding punch slider 2 is slidably arranged on the punch transverse guide rail 16;

The frame is also provided with a punch slider driving mechanism for driving each punch slider 2 to expand outward.

Preferably, the punch slider driving mechanism includes a plurality of transversely retractable second oil cylinders 23, the second oil cylinders 23 are installed on the frame, the telescopic end of the second oil cylinder 23 is connected to the punch pulling block 21, and a pulling block inclined surface is provided on the side of the punch pulling block 21 away from the second oil cylinder 23, a punch inclined guide rail 22 is fixed on the inclined surface of the pulling block, the inclination direction of the punch inclined guide rail 22 is from the upper outside to the bottom of the turbine cavity, the punch slider 2 is slidably installed on the punch inclined guide rail 22, and the lower end surface of the punch pulling block 21 is also provided with a accommodating groove cavity corresponding to the punch transverse guide rail 16.

The die slider driving mechanism includes a nitrogen spring rod 33 , one end of the nitrogen spring rod 33 is connected to the die, and the other end of the nitrogen spring rod 33 is connected to the die slider 3 .

The die is provided with a set of guide rods 32 corresponding to each die inclined guide rail 31. The extension direction of the guide rods 32 is parallel to the extension direction of the die inclined guide rail 31. The guide rods 32 slide and penetrate into the rod sleeve inside the punch slider 2. A limiting ring is fixed at the lower end of the guide rods 32.

Preferably, a punch hook 24 is fixed in the middle of the curved surface where the punch slider 2 and the die slider 3 overlap, and a die hook 34 is fixed in the middle of the curved surface where the die slider 3 and the punch slider 2 overlap, and the punch hook 24 and the die hook 34 are in sliding contact with each other through the inclined surfaces of the hooks.

Preferably, the present invention also includes a die insertion mechanism, which includes a first die 5 and a second die 6. The first die 5 and the second die 6 are overlapped and inserted into the impeller cavity of the inner wall of the turbine 100 and contact the front ends of the punch slider 2 and the die slider 3. The first die 5 is connected to the inclined top fixing plate 12 through the first driving mechanism 4, and the second die 6 is connected to the inclined top fixing plate 12 through the second driving mechanism. The inclined top fixing plate 12 is arranged above the ejection plate 11 of the punch slider, and a plurality of vertically telescopic third oil cylinders 13 are installed on the frame, and the telescopic rod ends of each third oil cylinder 13 are respectively fixedly connected to the four corner ends of the inclined top fixing plate 12.

Preferably, the first driving mechanism 4 includes a tilted top guide rod 42, a tilted top rod 41, a sliding block 44 and a fixed seat 43, the top end of the tilted top rod 41 is fixedly connected to the first insert mold 5, the bottom end of the tilted top rod 41 is fixedly connected to the sliding block 44, the fixed seat 43 is installed on the lower end surface of the tilted top fixing plate 12, a mounting groove is provided inside the fixed seat 43, and tilted guide grooves 431 are provided on both side walls of the mounting groove, the sliding block 44 is slidably installed in the tilted guide groove 431 through the protruding strips on both sides, and the front end of the mounting groove is fixed with a limiting plate 432, the tilted top guide rod 42 is movably inserted into the sliding block 44, the top end of the tilted top guide rod 42 is hinged to the top guide rod seat 421, the top guide rod seat 421 is fixed on the punch, the bottom end of the tilted top guide rod 42 is hinged to the bottom guide rod seat 422, and the bottom guide rod seat 422 is fixed on the bottom plate 1.

The second driving mechanism has the same structure as the first driving mechanism 4 , and the fixing seat of the first driving mechanism 4 and the fixing seat of the second driving mechanism are integrally formed.

Movement principle of the die slider: when the mold is opened and in the process of the die and the punch being separated, the die slider 3 is subjected to the rebound force of the nitrogen spring rod 33 (the nitrogen spring rod is compressed when the mold is closed) and moves outward along the surface in contact with the punch slider 2 until it is completely separated from the workpiece (turbine); a limit ring is fixed to the lower end of the guide rod 32, and the limit ring can prevent the die slider 3 from falling; the die hook 34 is fixed to the lower end surface of the die slider 3 by screws, and the punch hook 24 is fixed to the upper end surface of the punch slider 2 by screws, and the punch hook 24 and the die hook 34 are in sliding contact with each other through the inclined surfaces of the hooks, so as to give the die slider an initial force at the moment when the die and the punch are separated, because sometimes the nitrogen spring rod 33 will be locked and cannot drive the die slider 3 to move outward in time, which will cause damage to the workpiece (turbine 100).

Movement principle of the punch slider: the first oil cylinder 14 drives the punch slider ejection plate 11 to move upward, thereby driving the support column 15, the punch transverse guide rail 16 and the punch slider 2 to move upward together. After the upward movement distance exceeds the parting surface of the turbine 100, the second oil cylinder 23 pulls the punch pulling block 21, and the punch pulling block 21 drives the punch slider 2 to move outward through the punch inclined guide rail 22 until it is separated from the workpiece (turbine 100).

Movement principle of the die insertion mechanism: the inclined top fixing plate 12 is driven to move upward by the third oil cylinder 13, and the fixing seat 43 on the inclined top fixing plate 12 will also move upward. Since the sliding block 44 is slidably installed in the inclined guide groove 431 through the protruding strips on both sides, the bottom end of the inclined top rod 41 is fixedly connected to the sliding block 44. Therefore, the inclined top rod 41 will move upward along the inclined top guide rod 42 and move inward at the same time. The first die 5 and the second die 6 eject the workpiece (turbine 100) and complete the core pulling action at the same time.

It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims (4)

1. The utility model provides a compound motion of turbine mould mechanism which characterized in that: the die comprises a frame, a bottom plate (1), a male die slide ejector plate (11), a plurality of male die slides (2) distributed around the male die and a plurality of female die slides (3) distributed around the female die, wherein the male die slides (2) are overlapped with the female die slides (3) and extend into an impeller cavity of a turbine cavity, a plurality of female die inclined guide rails (31) are distributed around the female die, the inclined direction of the female die inclined guide rails (31) is inclined from the upper side to the lower side of the turbine cavity, the female die slides (3) are slidably arranged on the female die inclined guide rails (31), and a female die slide driving mechanism for driving each female die slide (3) to be unfolded downwards is further arranged on the female die;

A plurality of first cylinders (14) which vertically extend and retract are arranged on the frame, the telescopic rod ends of the first cylinders (14) are fixedly connected with the four corner ends of the bottom plate (1) respectively, a male die slide ejector plate (11) is arranged on the bottom plate (1), a plurality of groups of support columns (15) are fixed on the male die slide ejector plate (11), a male die transverse guide rail (16) is fixed at the top of each group of support columns (15), and a corresponding male die slide (2) is arranged on the male die transverse guide rail (16) in a sliding manner;

The frame is also provided with a male die slide block driving mechanism for driving each male die slide block (2) to spread outwards;

The male die slide block driving mechanism comprises a plurality of transversely telescopic second oil cylinders (23), the second oil cylinders (23) are arranged on the frame, the telescopic ends of the second oil cylinders (23) are connected with male die pulling blocks (21), one sides of the male die pulling blocks (21) far away from the second oil cylinders (23) are provided with pulling block inclined surfaces, male die inclined guide rails (22) are fixed on the pulling block inclined surfaces, the inclined directions of the male die inclined guide rails (22) incline from the upper sides to the lower sides of the turbine cavities, the male die slide blocks (2) are slidably arranged on the male die inclined guide rails (22), and accommodating groove cavities corresponding to the male die transverse guide rails (16) are further formed in the lower end faces of the male die pulling blocks (21);

The female die slide block driving mechanism comprises a nitrogen spring rod (33), one end of the nitrogen spring rod (33) is connected with the female die, and the other end of the nitrogen spring rod (33) is connected with the female die slide block (3);

The female die is provided with a group of guide rods (32) corresponding to each female die inclined guide rail (31), the extending direction of the guide rods (32) is parallel to the extending direction of the female die inclined guide rails (31), the guide rods (32) are inserted into rod sleeves in the male die sliding blocks (2) in a sliding manner, and limit rings are fixed at the lower ends of the guide rods (32);

The male die drag hook (24) is fixed in the middle of the curved surface overlapped with the male die slide block (2) and the female die slide block (3), the female die drag hook (34) is fixed in the middle of the curved surface overlapped with the female die slide block (2), and the male die drag hook (24) is matched with the female die drag hook (34) in a sliding contact manner through a drag hook inclined plane.

2. The turbine die compound motion mechanism of claim 1, wherein: the novel multifunctional combined die comprises a turbine (100), and is characterized by further comprising a die inserting mechanism, wherein the die inserting mechanism comprises a first die inserting mechanism (5) and a second die inserting mechanism (6), the first die inserting mechanism (5) and the second die inserting mechanism are overlapped and inserted into an impeller cavity of the inner wall of the turbine (100) and are in contact with the front ends of a male die sliding block (2) and a female die sliding block (3), the first die inserting mechanism (5) is connected with an oblique top fixing plate (12) through a first driving mechanism (4), the second die inserting mechanism (6) is connected with the oblique top fixing plate (12) through a second driving mechanism, the oblique top fixing plate (12) is arranged above a male die sliding block ejector plate (11), a plurality of vertical telescopic third oil cylinders (13) are arranged on the frame, and telescopic rod ends of the third oil cylinders (13) are fixedly connected with four corner ends of the oblique top fixing plate (12) respectively.

3. A turbine die compound motion mechanism as claimed in claim 2, wherein: the first driving mechanism (4) comprises an inclined ejection guide rod (42), an inclined ejection rod (41), a sliding block (44) and a fixed seat (43), wherein the top end of the inclined ejection rod (41) is fixedly connected with the first inserting die (5), the bottom end of the inclined ejection rod (41) is fixedly connected with the sliding block (44), the fixed seat (43) is installed on the lower end face of the inclined ejection fixing plate (12), an installation groove is formed in the fixed seat (43), oblique guide grooves (431) are formed in the side walls of the two sides of the installation groove, the sliding block (44) is slidably installed in the oblique guide grooves (431) through protruding strips on the two sides, a limiting plate (432) is fixed at the front end of the installation groove, the inclined ejection guide rod (42) is movably arranged inside the sliding block (44), the top end of the inclined ejection guide rod (42) is hinged to a top guide rod seat (421), the top guide rod seat (421) is fixed to a male die, the bottom end of the inclined ejection guide rod (42) is hinged to a bottom guide rod seat (422), and the bottom seat guide rod (422) is fixed to a bottom plate (1).

4. A turbine die compound motion mechanism as claimed in claim 3, wherein: the second driving mechanism and the first driving mechanism (4) have the same structure, and the fixed seat of the first driving mechanism (4) and the fixed seat of the second driving mechanism are integrally formed.