CN216176437U

CN216176437U - Gearbox of stable performance is with casting mould

Info

Publication number: CN216176437U
Application number: CN202122603936.1U
Authority: CN
Inventors: 吴敏; 周丹晨
Original assignee: Changzhou Mingdi Machinery Co ltd
Current assignee: Changzhou Mingdi Machinery Co ltd
Priority date: 2021-10-28
Filing date: 2021-10-28
Publication date: 2022-04-05
Anticipated expiration: 2031-10-28

Abstract

The utility model discloses a casting mould for a gearbox with stable performance, which belongs to the technical field of casting moulds for gearboxes, and comprises a lower mould and an upper mould, wherein the upper mould is arranged above the lower mould, the casting mould also comprises four limiting assemblies, the four limiting assemblies are respectively and fixedly arranged on the middle parts of the top ends of the four sides of the lower mould, clamping plates are respectively and fixedly arranged on the middle parts of the four sides of the upper mould, clamping mechanisms are respectively arranged in the four clamping plates, the two sides of the top end of each limiting assembly are respectively in sliding fit with the clamping mechanisms and the clamping plates, and the lower mould is fixedly arranged on a rotating mechanism. The casting quality of the casting is improved.

Description

Gearbox of stable performance is with casting mould

Technical Field

The utility model relates to the technical field of casting molds for gearboxes, in particular to a casting mold for a gearbox with stable performance.

Background

The speed changing box is a device for changing the speed ratio and the moving direction, is used on automobiles, tractors, ships, machine tools and various machines, and is used for changing the torque, the rotating speed and the moving direction transmitted from a driving shaft to a driven shaft according to different working conditions.

The existing casting mould for the gearbox is lack of a limiting mechanism between an upper mould and a lower mould, is poor in stability, and easily causes the phenomenon of deviation between the upper mould and the lower mould when the mould is closed, so that the casting quality of a casting is influenced.

Therefore, it is necessary to develop a casting mold for a transmission case with stable performance.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a casting mold for a gearbox with stable performance, and aims to solve the problems that the existing casting mold for the gearbox is poor in stability due to the fact that a limiting mechanism is not arranged between an upper mold and a lower mold, the upper mold and the lower mold are prone to being deviated during mold closing, and the casting quality of a workpiece is affected.

In order to achieve the purpose, the utility model provides the following technical scheme: the casting mold comprises a lower mold and an upper mold, wherein the upper mold is arranged above the lower mold, the casting mold further comprises four limiting assemblies, the four limiting assemblies are provided with four groups, the four limiting assemblies are respectively and fixedly installed on the middle parts of the top ends of the four sides of the lower mold, clamping plates are fixedly installed on the middle parts of the four sides of the upper mold, clamping mechanisms are arranged in the four groups of clamping plates, two sides of the top end of each limiting assembly are respectively in sliding fit with the clamping mechanisms and the clamping plates, and the lower mold is fixedly installed on a rotating mechanism.

Preferably, the limiting assembly comprises a U-shaped plate, the U-shaped plate is fixedly mounted on the middle portion of the top end of one side of the lower die, a limiting plate is rotatably mounted in one side, away from the lower die, of the U-shaped plate through a rotating shaft, and two sides of the top end of the limiting plate are respectively in sliding fit with the clamping plate and the clamping mechanism.

Preferably, one side that the mould was kept away from to the bottom of cardboard is provided with the second square groove, the top setting of limiting plate is in the second square groove, and one side that the limiting plate top is close to the mould and the laminating of second square groove inner wall slip.

Preferably, a coil spring is arranged in the middle of the bottom end of the limiting plate, the coil spring is slidably sleeved on a rotating shaft at the bottom end of the limiting plate, two ends of the coil spring are respectively fixedly embedded in the limiting plate and the U-shaped plate, and the coil spring is in a compression state.

Preferably, the screens mechanism includes the fixture block, the fixture block sets up in the second square groove, and the inclined plane setting of fixture block is in the one side of keeping away from the mould, the fixture block is close to one side of going up the mould and slides the laminating with one side of keeping away from the mould on limiting plate top, the top middle part fixed mounting of fixture block has the connecting rod, fixed mounting has the square plate on the well lower part of connecting rod, the top sliding contact of square plate has the spring, and the spring sliding sleeve is established on the connecting rod, the top fixed mounting of connecting rod has the arm-tie.

Preferably, one side intercommunication that the mould was kept away from to the top in second square groove is provided with and accomodates the groove, the top of accomodating the groove is provided with first square groove, first square groove all sets up in the cardboard with accomodating the groove, square plate and spring all slide to set up in first square groove, the top of spring and the top inner wall sliding contact in first square groove.

Preferably, rotary mechanism includes the bottom plate, the bottom plate sets up the below at the lower mould, the driven shaft is installed in the well lower rotation of bottom plate, the top fixed mounting of driven shaft is on the bottom center of lower mould, the well lower part fixed mounting of driven shaft has the gear, center one side of bottom plate is provided with drive assembly, fixed mounting has the support ring on the top face of bottom plate, even activity embedding is provided with the steel ball on the top of support ring, the top and the steel ball of support ring all slide and set up in the bottom of lower mould.

Preferably, the bottom of the lower die is provided with a ring groove, the top end of the support ring and the steel ball are arranged in the ring groove in a sliding manner, and the top end of the steel ball is attached to the top end face of the ring groove in a sliding manner.

Preferably, the drive assembly includes the driving shaft, the driving shaft rotates and installs in center one side of bottom plate, fixed mounting has sector gear on the lower part of driving shaft, fixed mounting has the motor on bottom center one side of bottom plate, the output of motor and the bottom fixed connection of driving shaft.

Compared with the prior art, the utility model has the beneficial effects that: carry out spacingly on mould and lower mould on the horizontal direction through stop gear and screens mechanism when the compound die, can avoid the lower mould and the phenomenon that goes up the mould and appear the skew in the horizontal direction, avoided the lower mould and gone up the mould influence that the skew caused to the foundry goods that appears, easy operation, very big having made things convenient for the staff to align lower mould and last mould, and be provided with rotary mechanism and can make the distribution of molten metal in lower mould and last mould more even, improve the casting quality of foundry goods.

Drawings

FIG. 1 is a front view of a casting mold of the present invention;

FIG. 2 is a view of the casting mold of the present invention;

FIG. 3 is an enlarged view of area A of FIG. 2 according to the present invention;

fig. 4 is a structure diagram of the limiting plate of the utility model.

In the figure: 1-lower die, 2-upper die, 3-bottom plate, 4-support ring, 5-steel ball, 6-driven shaft, 7-gear, 8-sector gear, 9-driving shaft, 10-motor, 11-U-shaped plate, 12-clamping plate, 13-limiting plate, 14-clamping block, 15-connecting rod, 16-square plate, 17-spring, 18-pulling plate, 19-first square groove, 20-accommodating groove, 21-second square groove, 22-ring groove and 23-coil spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model provides the following technical scheme: a casting mould for a gearbox with stable performance can effectively limit a lower mould 1 and an upper mould 2 in the horizontal direction in the using process, namely, the phenomenon that the lower mould 1 and the upper mould 2 deviate in the horizontal direction can be avoided, the lower mould 1 and the upper mould 2 are greatly convenient for workers to align, the influence on a casting caused by the deviation of the lower mould 1 and the upper mould 2 is avoided, the operation steps are simple, the stability of the casting is improved, a rotating mechanism is arranged, the distribution of metal liquid in the lower mould 1 and the upper mould 2 is more uniform, the casting quality of the casting is improved, the rotating mechanism, a limiting assembly, a clamping assembly and a clamping plate 12 are added, please refer to figures 1-4, the casting mould comprises the lower mould 1 and the upper mould 2, the upper mould 2 is arranged above the lower mould 1, the limiting assemblies also comprise four groups, the four groups of limiting assemblies are respectively and fixedly arranged on the middle parts of the top ends of the four sides of the lower mould 1, all fixedly mounted on the middle of four sides of the upper die 2 are clamping plates 12, clamping mechanisms are arranged in the four clamping plates 12, two sides of the top end of each limiting component are in sliding fit with the clamping mechanisms and the clamping plates 12 respectively, and the lower die 1 is fixedly mounted on the rotating mechanism.

Further, the limiting component comprises a U-shaped plate 11, the U-shaped plate 11 is fixedly installed on the middle portion of the top end of one side of the lower die 1, a limiting plate 13 is rotatably installed in one side, away from the lower die 1, of the U-shaped plate 11 through a rotating shaft, two sides of the top end of the limiting plate 13 are respectively in sliding fit with the clamping plate 12 and the clamping mechanism, one side, away from the upper die 2, of the bottom end of the clamping plate 12 is provided with a second square groove 21, the top end of the limiting plate 13 is arranged in the second square groove 21, one side, close to the upper die 2, of the top end of the limiting plate 13 is in sliding fit with the inner wall of the second square groove 21, a coil spring 23 is arranged in the middle portion of the bottom end of the limiting plate 13, the coil spring 23 is slidably sleeved on the rotating shaft at the bottom end of the limiting plate 13, two ends of the coil spring 23 are respectively and fixedly embedded in the limiting plate 13 and the U-shaped plate 11, the coil spring 23 is in a compressed state, specifically, when the clamping mechanism is separated from the limiting plate 13, the limit plate 13 can automatically rotate to the side far away from the upper die 2.

Further, the clamping mechanism comprises a clamping block 14, the clamping block 14 is arranged in a second square groove 21, an inclined surface of the clamping block 14 is arranged on one side far away from the upper die 2, one side, close to the upper die 2, of the clamping block 14 is in sliding fit with one side, far away from the upper die 2, of the top end of the limiting plate 13, a connecting rod 15 is fixedly arranged in the middle of the top end of the clamping block 14, a square plate 16 is fixedly arranged on the middle lower portion of the connecting rod 15, a spring 17 is in sliding contact with the upper portion of the square plate 16, the spring 17 is slidably sleeved on the connecting rod 15, a pulling plate 18 is fixedly arranged on the top end of the connecting rod 15, a containing groove 20 is communicated with one side, far away from the upper die 2, of the upper portion of the second square groove 21, a first square groove 19 is arranged above the containing groove 20, the first square groove 19 and the containing groove 20 are both arranged in the clamping plate 12, the square plate 16 and the spring 17 are both slidably arranged in the first square groove 19, and the top end of the spring 17 is in sliding contact with the inner wall of the top end of the first square groove 19, specifically, the inclined plane of the fixture block 14 is arranged on one side far away from the upper die 2, so that when the limiting plate 13 rotates towards one side close to the upper die 2, the inclined plane 14 can directly clamp the limiting plate 13, and the operation is simpler and faster.

Further, the rotating mechanism comprises a bottom plate 3, the bottom plate 3 is arranged below the lower die 1, a driven shaft 6 is rotatably arranged at the middle lower part of the bottom plate 3, the top end of the driven shaft 6 is fixedly arranged at the center of the bottom end of the lower die 1, a gear 7 is fixedly arranged at the middle lower part of the driven shaft 6, a driving assembly is arranged at one side of the center of the bottom plate 3, a support ring 4 is fixedly arranged on the top end surface of the bottom plate 3, steel balls 5 are uniformly and movably embedded at the top end of the support ring 4, the top end of the support ring 4 and the steel balls 5 are slidably arranged in the bottom end of the lower die 1, a ring groove 22 is arranged at the bottom end of the lower die 1, the top end of the support ring 4 and the steel balls 5 are slidably arranged in the ring groove 22, the top end of the steel balls 5 is slidably attached to the top end surface of the ring groove 22, the driving assembly comprises a driving shaft 9, the driving shaft 9 is rotatably arranged in one side of the center of the bottom plate 3, a sector gear 8 is fixedly arranged at the lower part of the driving shaft 9, fixed mounting has motor 10 on bottom center one side of bottom plate 3, the output of motor 10 and the bottom fixed connection of driving shaft 9, it is concrete, can make lower mould 1 and last mould 2 rotate on the horizontal direction through rotary mechanism, and the slew velocity is fast slow, can make the distribution of molten metal in lower mould 1 and last mould 2 more even, improve the casting quality of foundry goods, the frictional force between the reducible support ring 4 of steel ball 5 that sets up and ring groove 22, thereby make lower mould 1 and last mould 2 pivoted more smooth and easy.

The working principle is as follows: when the upper die 2 needs to be detached from the lower die 1, the pulling plate 18 is pulled to move upwards, namely the connecting rod 15, the fixture block 14 and the square plate 16 move upwards, at the moment, the spring 17 is in a compressed state, when the fixture block 14 is completely accommodated in the accommodating groove 20, the limiting plate 13 is separated from the fixture block 14, the limiting plate 13 rotates towards one side far away from the upper die 2 under the action of the coil spring 23, the top end of the limiting plate 13 slides out from the second square groove 21, then the pulling plate 18 is loosened, when the upper die 2 needs to be installed on the lower die 1, the upper die 2 is placed on the lower die 1, then the limiting plate 13 is pushed to rotate towards one side close to the upper die 2, when the top end of the limiting plate 13 is contacted with the fixture block 14, the limiting plate 13 rotates to push the fixture block 14 to move upwards, at the moment, the fixture block 14 gradually slides into the accommodating groove 20, the first square groove 19 is compressed, when one side, close to the top end of the upper die 2, is attached to the inner wall of the second square groove 21, the fixture block 14 slides downwards under the action of the spring 17, so that one side of the fixture block 14, which is close to the upper die 2, is in sliding fit with the limiting plate 13, the limiting plate 13 can be limited by the fixture block 14, the four groups of limiting plates 13 can be slid into the second square groove 21, the lower die 1 and the upper die 2 can be limited by the four groups of limiting plates 13 in the horizontal direction, the phenomenon that the lower die 1 and the upper die 2 deviate in the horizontal direction can be avoided, the lower die 1 and the upper die 2 are greatly convenient for workers to align the lower die 1 and the upper die 2, the influence of deviation of the lower die 1 and the upper die 2 on a casting is avoided, the operation steps are simple, the stability of the casting is improved, when molten metal is injected into the lower die 1 and the upper die 2, the motor 10 is started, the motor 10 works, namely, the driving shaft 9 and the sector gear 8 rotate, the sector gear 8 rotates to intermittently drive the gear 7 to rotate, namely, the gear 7 and the driven shaft 6 rotate under the action force of the sector gear 8 and inertia, when sector gear 8 and gear 7 meshing, 6 slew velocity of driven shaft is fast, when sector gear 8 and gear 7 break away from the meshing, 6 rotational speeds of driven shaft are slow, can realize that driven shaft 6 drives lower mould 1 and last mould 2 and rotate on the horizontal direction, and slew velocity is fast time slow, can make the distribution of metal liquid in lower mould 1 and last mould 2 more even, improves the casting quality of foundry goods.

While the utility model has been described above with reference to an embodiment, various modifications may be made in the alignment and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the various features of the embodiments disclosed herein may be used in any combination, provided that there is no structural conflict, and the combinations are not exhaustively described in this specification merely for the sake of brevity and conservation of resources. Therefore, it is intended that the utility model not be limited to the particular embodiments disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides a casting mould for gearbox of stable performance, includes lower mould (1) and last mould (2), mould (2) are gone up in the top setting of lower mould (1), its characterized in that still includes spacing subassembly, spacing subassembly is equipped with four groups altogether, four groups spacing subassembly fixed mounting respectively is on four side top middle parts of lower mould (1), all fixed mounting has cardboard (12) on four side middle parts of going up mould (2), four groups all be provided with clamping mechanism in cardboard (12), the top both sides of spacing subassembly respectively with clamping mechanism and cardboard (12) sliding fit, lower mould (1) fixed mounting is on rotary mechanism.

2. The casting mold for the gearbox with stable performance according to claim 1, wherein: spacing subassembly includes U-shaped board (11), U-shaped board (11) fixed mounting is on one side top middle part of lower mould (1), limiting plate (13) are installed through the pivot rotation in one side of lower mould (1) is kept away from in U-shaped board (11), the top both sides of limiting plate (13) slide with cardboard (12) and screens mechanism respectively and laminate.

3. The casting mold for the gearbox with stable performance according to claim 1, wherein: rotary mechanism includes bottom plate (3), bottom plate (3) set up the below at lower mould (1), driven shaft (6) are installed in the well under rotation of bottom plate (3), the top fixed mounting of driven shaft (6) is on the bottom center of lower mould (1), the well lower part fixed mounting of driven shaft (6) has gear (7), center one side of bottom plate (3) is provided with drive assembly, fixed mounting has support ring (4) on the top face of bottom plate (3), the embedding of evenly moving about on the top of support ring (4) is provided with steel ball (5), the top of support ring (4) and steel ball (5) all slide and set up in the bottom of lower mould (1).

4. The casting mold for the gearbox with stable performance according to claim 2, wherein: one side that last mould (2) was kept away from to the bottom of cardboard (12) is provided with second square groove (21), the top setting of limiting plate (13) is in second square groove (21), and limiting plate (13) top is close to one side and the sliding fit of second square groove (21) inner wall of last mould (2).

5. The casting mold for the gearbox with stable performance according to claim 2, wherein: the spring coiling mechanism is characterized in that a coil spring (23) is arranged in the middle of the bottom end of the limiting plate (13), the coil spring (23) is slidably sleeved on a rotating shaft at the bottom end of the limiting plate (13), two ends of the coil spring (23) are fixedly embedded into the limiting plate (13) and the U-shaped plate (11) respectively, and the coil spring (23) is in a compression state.

6. The casting mold for the gearbox with stable performance according to claim 2, wherein: clamping mechanism includes fixture block (14), fixture block (14) set up in second square groove (21), and the inclined plane setting of fixture block (14) is in the one side of keeping away from last mould (2), one side that one side and limiting plate (13) top that fixture block (14) are close to last mould (2) slide the laminating in one side of keeping away from last mould (2), the top middle part fixed mounting of fixture block (14) has connecting rod (15), fixed mounting has square plate (16) on the well lower part of connecting rod (15), the top sliding contact of square plate (16) has spring (17), and spring (17) slip cap is established on connecting rod (15), the top fixed mounting of connecting rod (15) has arm-tie (18).

7. The casting mold for the gearbox of claim 3, wherein: the bottom of lower mould (1) is provided with ring groove (22), the top of support ring (4) and steel ball (5) all slide and set up in ring groove (22), the top of steel ball (5) and the top face of ring groove (22) slip laminating.

8. The casting mold for the gearbox of claim 3, wherein: the drive assembly comprises a drive shaft (9), the drive shaft (9) is rotatably installed in one side of the center of the bottom plate (3), a sector gear (8) is fixedly installed on the lower portion of the drive shaft (9), a motor (10) is fixedly installed on one side of the center of the bottom end of the bottom plate (3), and the output end of the motor (10) is fixedly connected with the bottom end of the drive shaft (9).

9. The casting mold for the gearbox of claim 6, wherein: one side intercommunication that last mould (2) was kept away from to the top of second square groove (21) is provided with accomodates groove (20), the top of accomodating groove (20) is provided with first square groove (19), first square groove (19) all set up in cardboard (12) with accomodate groove (20), square plate (16) and spring (17) all slide and set up in first square groove (19), the top of spring (17) and the top inner wall sliding contact of first square groove (19).