CN215392320U

CN215392320U - Wax mould forming tool

Info

Publication number: CN215392320U
Application number: CN202122100717.1U
Authority: CN
Inventors: 蒋小勇
Original assignee: Changli Xinjia Precision Casting Co ltd
Current assignee: Changli Xinjia Precision Casting Co ltd
Priority date: 2021-09-01
Filing date: 2021-09-01
Publication date: 2022-01-04
Anticipated expiration: 2031-09-01

Abstract

The utility model provides a wax pattern forming tool which comprises a supporting rack, a first fixed seat, a lifting assembly, a grabbing mechanism and a grabbing and hanging assembly, wherein the supporting rack is provided with an installation position for placing a lower half mold; the first fixed seat is arranged above the support rack; the lifting assembly is arranged on the first fixed seat and is opposite to the installation position; the grabbing mechanism is used for grabbing the upper half die in a claw mode, the grabbing mechanism is connected with the lifting assembly, the grabbing mechanism is provided with at least two clamping jaws, claw hooks are arranged at the end portions of the clamping jaws, and the grabbing mechanism grabs the upper half die in a vertically moving mode through the lifting assembly; the grabbing and hanging component is provided with a connecting column and a grabbing and hanging piece which are connected, the connecting column is connected with the upper half die, and the cross sectional area of the grabbing and hanging piece is larger than that of the connecting column. The wax mould forming tool can realize automatic disassembly and assembly of the wax mould, liberate labor force and improve production efficiency.

Description

Wax mould forming tool

Technical Field

The utility model belongs to the technical field of investment casting devices, and particularly relates to a wax pattern forming tool.

Background

The casting process is a common process in production and manufacturing, wherein in casting, an upper half mould and a lower half mould of a wax mould are assembled and molded, then a casting machine injects wax into the mould, and when injected wax liquid is solidified, the wax mould is disassembled, and molded parts are taken out. The upper half die and the lower half die are assembled or disassembled manually in the existing production process, so that each operator needs to disassemble and assemble the wax die once when producing a casting part, the production efficiency is low, and manpower is consumed.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a wax mold forming tool, and aims to solve the problems that an upper half mold and a lower half mold are assembled or disassembled manually in the existing production process, the production efficiency is low, and manpower is consumed.

In order to achieve the purpose, the utility model adopts the technical scheme that: the wax mold forming fixture comprises a supporting rack, a first fixed seat, a lifting assembly, a grabbing mechanism and a grabbing and hanging assembly, wherein the supporting rack is provided with a mounting position for placing a lower half mold; the first fixed seat is arranged above the support rack; the lifting assembly is arranged on the first fixed seat and is opposite to the installation position; the grabbing mechanism is used for grabbing the upper half die in a claw mode, the grabbing mechanism is connected with the lifting assembly, the grabbing mechanism is provided with at least two clamping jaws, claw hooks are arranged at the end portions of the clamping jaws, and the grabbing mechanism grabs the upper half die in a vertically moving mode through the lifting assembly; the grabbing and hanging component is provided with a connecting column and a grabbing and hanging piece which are connected, the connecting column is connected with the upper half die, and the cross sectional area of the grabbing and hanging piece is larger than that of the connecting column.

Wherein, grab the pendant and press from both sides and locate between a plurality of clamping jaws, the claw hook of clamping jaw stretches into the below of grabbing the pendant.

In a possible implementation manner, the grabbing mechanism further comprises a connecting shaft, a fixing piece, a sliding sleeve, a driving piece and an elastic piece, wherein one end of the connecting shaft is connected with the lifting assembly; the fixing piece is arranged at the other end of the connecting shaft; the sliding sleeve is sleeved on the connecting shaft and can slide along the axis direction of the connecting shaft, and one end of the clamping jaw is rotatably connected with the sliding sleeve; the driving piece is arranged on the first fixed seat, is connected with the sliding sleeve and is used for driving the sliding sleeve to slide; every clamping jaw of elastic component all is connected with at least one elastic component, and the one end of elastic component links to each other with the mounting, and the other end of elastic component links to each other with the clamping jaw, and the elastic component is used for pulling the clamping jaw to close.

In a possible implementation, the elastic member is a spring, two springs are provided for each jaw, the two springs are symmetrical with respect to the jaw, and the two springs are located on both sides of the jaw.

In a possible implementation manner, a plurality of first bumps are arranged on the side wall of the fixing piece, the number of the first bumps is the same as that of the clamping jaws, second bumps are arranged on the inner sides of the clamping jaws, the side walls of the first bumps and the side walls of the second bumps are arc walls, the first bumps are in one-to-one corresponding contact with the second bumps, and the first bumps push the clamping jaws to open through the second bumps.

In a possible implementation manner, a first hydraulic cylinder is arranged on the fixed seat, and a cylinder rod end of the first hydraulic cylinder is connected with the sliding sleeve.

In one possible implementation, the lifting assembly is a push hydraulic cylinder.

In a possible implementation mode, the wax mold forming tool further comprises an ejection mechanism, the ejection mechanism is arranged on the support rack and located below the lower half mold, the ejection mechanism comprises an ejection plate and an ejection driving part, a plugging column is arranged on the ejection plate, the shape of the plugging column is matched with that of a through cavity in the lower half mold, and the plugging column is used for being inserted into the through cavity and plugging the lower end of the through cavity; the ejection driving piece is connected with the ejection plate and used for pushing the ejection plate to move towards the lower half die and ejecting the cast part out of the lower half die.

In one possible implementation, the ejector actuator is a second hydraulic cylinder.

In a possible implementation manner, a turntable and a center column are arranged on the support rack, the center column penetrates through the middle of the turntable, the first fixing seat is connected with the center column, the installation position of the lower half mold is arranged on the turntable, and the turntable is used for rotating the mold assembled by the upper half mold and the lower half mold to other stations.

In a possible implementation mode, the turntable is provided with a mounting plate, the mounting plate is provided with a plurality of T-shaped grooves, and the lower half die is connected with the mounting plate through the T-shaped grooves.

Compared with the prior art, the lifting assembly is arranged, the lifting assembly is connected with the grabbing mechanism, the connecting column is arranged on the back of the upper half die, the grabbing piece is arranged on the connecting column, and the cross-sectional area of the grabbing piece is larger than that of the connecting column. When the wax mold is assembled, the grabbing mechanism grabs and fixes the grabbing piece, the claw hooks of the clamping jaws stretch into the lower part of the grabbing piece, when the grabbing mechanism descends to a proper height, the grabbing mechanism releases the upper half mold, the upper half mold is spliced with the lower half mold, and the wax mold is assembled. When the wax mold needs to be detached after casting is completed, the lifting assembly moves downwards, and the grabbing mechanism grabs and fixes the grabbing piece, so that the upper half mold can ascend along with the lifting assembly, the wax mold is opened, and an operator only needs to take the cast part. The wax mould forming tool can realize automatic disassembly and assembly of the wax mould, liberate labor force and improve production efficiency.

Drawings

Fig. 1 is a schematic structural diagram of a wax pattern forming tool according to an embodiment of the present invention;

FIG. 2 is an enlarged view taken along line A in FIG. 1;

FIG. 3 is an enlarged view taken along line B in FIG. 1;

fig. 4 is a schematic structural diagram of an ejection structure of a wax pattern forming tool according to an embodiment of the present invention;

FIG. 5 is an enlarged view taken along line C in FIG. 4;

fig. 6 is a schematic structural view of a wax pattern forming tool according to another embodiment of the present invention.

Description of reference numerals:

1. a support stand; 2. pushing the top plate; 3. positioning holes; 4. positioning pins; 5. an upper half mold; 6. connecting columns; 7. grabbing a hanging piece; 8. a connecting shaft; 9. a sliding sleeve; 10. a first fixed seat; 11. a first hydraulic cylinder; 12. a clamping jaw; 13. a fixing member; 14. a spring; 15. a central column; 16. a support platform; 17. a second fixed seat; 18. mounting a plate; 19. a turntable; 20. a lower half mold; 21. a second hydraulic cylinder; 23. plugging the column; 24. a first bump; 25. and a second bump.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Referring to fig. 1 to 2 together, the wax pattern forming tool of the present invention will now be described. The wax mould forming tool comprises a support rack 1, a first fixed seat 10, a lifting assembly, a grabbing mechanism and a grabbing and hanging assembly, wherein the support rack 1 is provided with an installation position for placing a lower half mould 20; the first fixed seat 10 is arranged above the supporting rack 1; the lifting assembly is arranged on the first fixed seat 10 and is opposite to the installation position; the grabbing mechanism is used for grabbing the upper half die 5 in a claw mode, the grabbing mechanism is connected with the lifting assembly, the grabbing mechanism is provided with at least two clamping jaws 12, claw hooks are arranged at the end portions of the clamping jaws 12, and the grabbing mechanism grabs the upper half die 5 in a vertically moving mode through the lifting assembly; the grabbing and hanging component is provided with a connecting column 6 and grabbing and hanging pieces 7 which are connected, the connecting column 6 is connected with the upper half die 5, and the cross-sectional area of the grabbing and hanging pieces 7 is larger than that of the connecting column 6. Wherein, the grabbing and hanging piece 7 is clamped between a plurality of clamping jaws 12, and the claw hooks of the clamping jaws 12 extend into the lower part of the grabbing and hanging piece 7.

Compared with the prior art, the wax mold forming tool provided by the embodiment is provided with the lifting assembly, the lifting assembly is connected with the grabbing mechanism, the connecting column 6 is arranged on the back surface of the upper half mold 5, the grabbing piece 7 is arranged on the connecting column 6, and the cross-sectional area of the grabbing piece 7 is larger than that of the connecting column 6. When the wax mould is assembled, the grabbing mechanism grabs the grabbing piece 7 firmly, the claw hooks of the clamping jaws 12 extend into the lower part of the grabbing piece 7, when the height of the grabbing mechanism is lowered to a proper height, the grabbing mechanism releases the upper half mould 5, the upper half mould 5 is spliced with the lower half mould 20, and the wax mould is assembled. When the wax mould is required to be disassembled after casting, the lifting component moves downwards, the grabbing mechanism grabs and fixedly grabs the hanging piece 7, so that the upper half mould 5 can ascend along with the lifting component, the wax mould is opened, and an operator only needs to take the cast part. The wax mould forming tool can realize automatic disassembly and assembly of the wax mould, liberate labor force and improve production efficiency.

In this embodiment, snatch the mechanism and can be conventional mechanical tongs structure on the market, set up the claw hook at the tip of clamping jaw 12, the clamping of clamping jaw 12 grabs pendant 7, and the claw hook of clamping jaw 12 stretches into the below of grabbing pendant 7, grabs pendant 7 and can articulate with clamping jaw 12, and the claw hook is spacing to first mould 5, can effectively prevent first mould 5 from dropping.

In this embodiment, the grasping member 7 and the connecting column 6 are both cylinders, and the diameter of the grasping member 7 is larger than that of the connecting column 6, so that the claw hook can extend into the lower part of the grasping member 7.

In this embodiment, the upper mold half 5 may be provided with a positioning pin 4, the lower mold half 20 may be provided with a positioning hole 3, when the grabbing mechanism grabs the grabbing piece 7 to move down, the positioning pin 4 is inserted into the positioning hole 3, then the grabbing mechanism loosens the upper mold half 5, and the upper mold half 5 and the lower mold half 20 are assembled.

In some embodiments, referring to fig. 1 to 6, the grabbing mechanism further comprises a connecting shaft 8, a fixing member 13, a sliding sleeve 9, a driving member, and an elastic member, wherein one end of the connecting shaft 8 is connected with the lifting assembly; the fixed piece 13 is arranged at the other end of the connecting shaft 8; the sliding sleeve 9 is sleeved on the connecting shaft 8 and can slide along the axis direction of the connecting shaft 8, and one end of the clamping jaw 12 is rotatably connected with the sliding sleeve 9; the driving piece is arranged on the first fixed seat 10, is connected with the sliding sleeve 9 and is used for driving the sliding sleeve 9 to slide; every clamping jaw 12 of elastic component all is connected with at least one elastic component, and the one end of elastic component links to each other with mounting 13, and the other end of elastic component links to each other with clamping jaw 12, and the elastic component is used for pulling clamping jaw 12 to receive.

In this embodiment, one end of the elastic member is connected to the fixing member 13, the other end of the elastic member is connected to the clamping jaw 12, and the clamping jaw 12 is rotatably connected to the sliding sleeve 9. When the driving member pushes the sliding sleeve 9 to move towards the fixing member 13, because the elastic member is fixed with the relative connection point of the fixing member 13 and the clamping jaw 12, the clamping jaw 12 will be opened after the sliding sleeve 9 moves towards the fixing member 13. Then the lifting assembly moves downwards, the upper half mould 5 is placed between the clamping jaws 12, then the sliding sleeve 9 moves upwards, the clamping jaws 12 rotate towards the lower half mould 20 under the elastic force of the elastic element, and the upper half mould 5 is clamped.

In some possible implementations, referring to fig. 2, the elastic member is a spring 14, two springs 14 are provided for each jaw 12, the two springs 14 are symmetrical with respect to the jaw 12, and the two springs 14 are respectively located on both sides of the jaw 12.

In this embodiment, the elastic member is a spring 14, and if the spring 14 is provided in one, because the spring 14 has flexibility, when the clamping jaw 12 is pulled by the spring 14, the direction of the pulling force cannot be kept stable, and shaking occurs. The two springs 14 are symmetrically arranged on two of the clamping jaws 12, so that the clamping jaws 12 are subjected to more stable tension when rotating.

In some embodiments, referring to fig. 6, a plurality of first protrusions 24 are disposed on a side wall of the fixing member 13, the number of the first protrusions 24 is the same as that of the clamping jaws 12, second protrusions 25 are disposed on an inner side of the clamping jaws 12, side walls of the first protrusions 24 and the second protrusions 25 are arc walls, the first protrusions 24 and the second protrusions 25 are in one-to-one corresponding contact, and the first protrusions 24 push the clamping jaws 12 to open through the second protrusions 25.

In this embodiment, the side wall of the fixing member 13 is provided with a first protrusion 24, the inner side of the clamping jaw 12 is provided with a second protrusion 25, and the first protrusion 24 and the second protrusion 25 are always in contact under the action of the spring 14. When the sliding sleeve 9 slides downwards, because the clamping jaw 12 is rotatably connected with the sliding sleeve 9, the sliding sleeve 9 slides downwards to drive the clamping jaw 12 to slide downwards, so that the contact position of the first bump 24 and the second bump 25 is changed, the distance between the second bump 25 and the fixing piece 13 is increased, and the clamping jaw 12 is pushed to rotate outwards and open. When the sliding sleeve 9 slides upwards, the contact position of the first lug 24 and the second lug 25 is changed, the distance between the second lug 25 and the fixing piece 13 is reduced, the clamping jaws 12 rotate towards the closing direction, and the clamping jaws 12 grab the upper half mould 5.

In some embodiments, referring to fig. 1, fig. 2 and fig. 6, a first hydraulic cylinder 11 is disposed on the fixed seat, and a rod end of the first hydraulic cylinder 11 is connected to the sliding sleeve 9.

In some embodiments, referring to fig. 1, 2, and 6, the lifting assembly is a ram cylinder.

In this embodiment, the cylinder body of the pushing hydraulic cylinder is arranged in the first fixing seat 10, and the cylinder rod of the pushing hydraulic cylinder is connected with the connecting column 6 of the grabbing mechanism.

In some embodiments, referring to fig. 1 and fig. 3 to 5, the wax mold forming fixture further includes an ejection mechanism, the ejection mechanism is disposed on the support rack 1 and located below the lower half mold 20, the ejection mechanism includes a ejection plate 2 and an ejection driving member, the ejection plate 2 is provided with a plugging column 23, the shape of the plugging column 23 matches the shape of a through cavity in the lower half mold 20, and the plugging column 23 is used for inserting into the through cavity and plugging the lower end of the through cavity; the ejection driving member is connected to the ejection plate 2 and used for pushing the ejection plate 2 to move towards the lower half mold 20 to eject the cast part out of the lower half mold 20.

In this embodiment, the lower half mold 20 is provided with a through cavity completely penetrating therethrough, the ejector plate 2 is provided with a plugging column 23, the shape of the plugging column 23 is the same as that of the through cavity of the lower half mold 20, and the plugging column 23 is inserted into the through cavity and plugs the lower end of the through cavity. The position of the ejection mechanism remains unchanged when the upper mold half 5 is assembled with the lower mold half 20. When the casting is finished, the upper half mold 5 and the lower half mold 20 are detached, and the casting needs to be taken out, the ejection driving piece of the ejection mechanism pushes the ejection plate 2 to move upwards, so that the plugging column 23 moves upwards to push the casting to protrude out of the through cavity, and the formed part is convenient to take out quickly.

In some embodiments, referring to fig. 1 and 3-5, the ejector driving member is a second hydraulic cylinder 21.

In this embodiment, the second hydraulic cylinder 21 is connected to the ejector plate 2, and the second hydraulic cylinder 21 pushes the ejector plate 2 to move up and down.

In some embodiments, referring to fig. 1, a turntable 19 and a center post 15 are disposed on the support table 1, the center post 15 passes through the middle of the turntable 19, the first fixing seat 10 is connected to the center post 15, the lower mold half 20 is disposed on the turntable 19, and the turntable 19 is used for rotating the mold assembled by the upper mold half 5 and the lower mold half 20 to other stations.

In this embodiment, the support rack 1 is provided with a rotary table 19 and a center column 15, the center column 15 passes through the middle of the rotary table 19, a support platform 16 is arranged at the penetrating end of the center column 15, and the support platform 16 is provided with a first fixing seat 10.

In this embodiment, the turntable 19 is provided with two stations, one of which is an installation station and the other is a wax injection station, the support platform 16 is provided with a second fixing seat 17, the second fixing seat 17 is provided with a pressing hydraulic cylinder, and a cylinder rod end of the pressing hydraulic cylinder is provided with a pressing plate. The pressing plate is opposite to the wax injection station, and the grabbing mechanism is opposite to the installation station. When the upper mold half 5 and the lower mold half 20 are mounted, the turntable 19 rotates to make the mounted wax pattern face the pressing plate. And pressing the pressing plate downwards to fix the wax mould, and injecting wax into the wax mould by the wax injection equipment beside the wax mould.

In some embodiments, referring to fig. 1, the turntable 19 is provided with a mounting plate 18, the mounting plate 18 is provided with T-shaped slots, and the lower mold half 20 is connected to the mounting plate 18 via the T-shaped slots.

In this embodiment, wear to establish the bolt in the T type inslot, the nut end of bolt can slide along T type groove, and the screw rod of bolt passes the briquetting and links to each other with the nut. The nut is screwed down, and the lower half die 20 is pressed and fixed on the mounting plate 18 by the pressing block, so that the position adjustment and the quick disassembly and assembly of the lower half die 20 are facilitated.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A wax pattern forming harness, comprising:

the supporting rack is provided with an installation position for placing a lower half die;

the first fixing seat is arranged above the supporting rack;

the lifting assembly is arranged on the first fixed seat and is opposite to the installation position;

the grabbing mechanism is used for grabbing the upper half die and is connected with the lifting assembly, the grabbing mechanism is provided with at least two clamping jaws, claw hooks are arranged at the end parts of the clamping jaws, and the grabbing mechanism grabs the upper half die by moving up and down through the lifting assembly;

the grabbing and hanging component is provided with a connecting column and a grabbing and hanging piece which are connected, the connecting column is connected with the upper half die, and the cross sectional area of the grabbing and hanging piece is larger than that of the connecting column;

the grabbing and hanging piece is clamped between the clamping jaws, and the claw hooks of the clamping jaws stretch into the lower portion of the grabbing and hanging piece.

2. A wax pattern forming harness as claimed in claim 1 wherein said gripping mechanism further comprises:

one end of the connecting shaft is connected with the lifting component;

the fixing piece is arranged at the other end of the connecting shaft;

the sliding sleeve is sleeved on the connecting shaft and can slide along the axis direction of the connecting shaft, and one end of the clamping jaw is rotatably connected with the sliding sleeve;

the driving piece is arranged on the first fixed seat, is connected with the sliding sleeve and is used for driving the sliding sleeve to slide;

the elastic component, every the clamping jaw all is connected with at least one the elastic component, the one end of elastic component with the mounting links to each other, the other end of elastic component with the clamping jaw links to each other, the elastic component is used for the pulling the clamping jaw is closed.

3. A wax pattern forming harness as claimed in claim 2 wherein said resilient member is a spring, two said springs being provided for each said jaw, said two springs being symmetrical about said jaw, said two springs being located on either side of said jaw.

4. A wax pattern forming tool according to claim 3, wherein the side wall of the fixing member is provided with a plurality of first protrusions, the number of the first protrusions is the same as that of the clamping jaws, the inner side of the clamping jaws is provided with second protrusions, the side walls of the first protrusions and the second protrusions are arc walls, the first protrusions and the second protrusions are in one-to-one corresponding contact, and the first protrusions push the clamping jaws to open through the second protrusions.

5. A wax pattern forming tool as claimed in claim 3, wherein the fixed base is provided with a first hydraulic cylinder, and a cylinder rod end of the first hydraulic cylinder is connected with the sliding sleeve.

6. A wax pattern forming harness as claimed in claim 1 wherein the lifting assembly is a ram cylinder.

7. A wax pattern molding harness as claimed in claim 3 further comprising an ejection mechanism on the support rack below the lower mold half, the ejection mechanism comprising:

the pushing plate is provided with a plugging column, the shape of the plugging column is matched with that of a through cavity in the lower half die, and the plugging column is used for being inserted into the through cavity and plugging the lower end of the through cavity;

and the ejection driving part is connected with the ejection plate and is used for pushing the ejection plate to move towards the lower half die and ejecting the cast part out of the lower half die.

8. A wax pattern molding harness as claimed in claim 7 wherein said ejector actuator is a second hydraulic cylinder.

9. The wax pattern forming tool according to claim 1, wherein a turntable and a center post are provided on the support table, the center post passes through a middle portion of the turntable, the first fixing seat is connected to the center post, the lower mold half is mounted on the turntable, and the turntable is configured to rotate a mold assembled by the upper mold half and the lower mold half to other stations.

10. A wax pattern forming harness as claimed in claim 9 wherein a mounting plate is provided on the turntable, a plurality of T-shaped slots are provided on the mounting plate, and the lower mold half is connected to the mounting plate via the T-shaped slots.