阅读说明：本技术 钩缓装置中上下壳体铸件用模组蜡件结构及其组树工艺 (Module wax part structure for upper and lower shell castings in coupler and draft gear and tree assembling process thereof ) 是由 徐大兵 夏盆祥 于 2021-02-23 设计创作，主要内容包括：本发明公开了一种钩缓装置中上下壳体铸件用模组蜡件结构及其组树工艺,包括有与上下壳体毛坯铸件结构相同的主蜡件,主蜡件竖直放置,主蜡件的弧形面所在侧设有浇道蜡件,主蜡件的底端设有与主蜡件为一体的浇冒口件一,浇冒口件一的底端连接有与主蜡件连接的且水平设置的浇冒口件二,主蜡件的凹腔面所在侧设有两并列竖直间隔设置的浇冒口件三和浇冒口件四,浇冒口件三和浇冒口件四的结构相同,其底端部通过拉筋连接固定,浇冒口件三和浇冒口件四的底端部设有台阶,且台阶下方浇冒口件三和浇冒口件四的内侧面分别连接有内浇口件。本发明解决了现有工艺中出现的缩孔缺陷的问题,以获得没有缩孔的致密铸件,方便铸件成型的同时,保证了产品的质量。(The invention discloses a modular wax part structure for upper and lower shell castings in a hook cushioning device and a tree assembling process thereof. The invention solves the problem of shrinkage cavity defect in the prior art, so as to obtain a compact casting without shrinkage cavity, thereby facilitating the molding of the casting and ensuring the quality of the product.)

1. The utility model provides a die set wax spare structure of casing blank foundry goods in-process under well in unhooking device, including with the same main wax spare of upper and lower casing blank foundry goods structure, its characterized in that: the main wax piece is vertically placed, the arc-shaped surface side of the main wax piece is provided with a pouring wax piece, the bottom end of the main wax piece is provided with a first pouring head piece integrated with the main wax piece, the bottom end of the first pouring head piece is connected with a second pouring head piece which is connected with the main wax piece and horizontally arranged, the cavity surface side of the main wax piece is provided with a third pouring head piece and a fourth pouring head piece which are arranged side by side at vertical intervals, the third pouring head piece and the fourth pouring head piece are identical in structure, the bottom end parts of the third pouring head piece and the fourth pouring head piece are fixedly connected through tie bars, the bottom end parts of the third pouring head piece and the fourth pouring head piece are provided with steps, and the inner side surfaces of the third pouring head piece and the fourth pouring head piece below the steps are respectively connected with inner pouring head pieces connected with convex ribs on the inner side of the main wax piece.

2. The modular wax element structure of claim 1 in the process of casting the blank of the upper and lower shells in the hooking and relieving device, which is characterized in that: the pouring gate wax piece comprises a vertical cylinder, a pouring gate rod piece is arranged at the upper end of the cylinder, and the specification of the pouring gate rod piece I is smaller than that of the main wax piece.

3. The modular wax element structure of claim 2 in the process of casting the blank of the upper and lower shells in the hooking and relieving device, which is characterized in that: the cross section of the column body is of a rectangular structure, and the cross section of the first casting head part is of a square structure.

4. The modular wax element structure of claim 1 in the process of casting the blank of the upper and lower shells in the hooking and relieving device, which is characterized in that: the lower end surfaces of the first dead head part, the third dead head part and the fourth dead head part are positioned at the same height and protrude 5-10mm from the lower end surface of the main wax part.

5. The die set wax piece in the process of casting the upper and lower shell blank in the hooking and relieving device based on claim 1, wherein the specific tree forming process comprises the following steps:

firstly, manufacturing corresponding wax patterns through molds corresponding to a main wax piece, a first casting head piece, a second casting head piece, a third casting head piece, a fourth casting head piece and an inner pouring head piece, placing the molds on a wax pattern processing production line for wax injection during wax injection, transferring the molds on a production line after wax injection, automatically spraying water for cooling, pulling the molds to an operation table by manually pulling slightly after the molds are moved to a blanking operation table position, and pushing the molds to the production line after the molds are taken down;

placing each formed wax piece on an assembly workbench, and during specific welding and assembly, firstly assembling a casting head piece I and a casting head piece II into a structural piece I, placing the structural piece I on one side for standby, simultaneously assembling a casting head piece III, a casting head piece IV and an inner casting head piece into a structural piece II, placing the structural piece II on one side for standby, paying attention to prevent extrusion deformation during placement, and simultaneously taking waste products with meat deficiency, deformation and unclear marks as waste products without resistance welding;

then place main wax spare on clean and tidy platform, weld group tree to its both sides, make it form module wax spare, its welding group tree in-process, the fash needs to be repaired with the wax water, the wax spare surface after the group tree is not allowed to have wax bits, hole can.

6. After the solder resist is welded, wax chips are blown off, wax beans are scraped, and the wax beans are inserted into a wax model frame for standby.

7. The modular wax element in the process of casting the blank of the upper shell and the lower shell of the hooking and relieving device according to claim 5, wherein: the wax pattern processing production line in the step (1) comprises a support, two waist-shaped fixed beams which are arranged inside and outside in parallel are erected on the support, circulating conveying roller sets which are arranged at intervals are distributed between the waist-shaped fixed beams, a plurality of blanking stations which are arranged at intervals are distributed on one side of each waist-shaped fixed beam, guide platforms are erected on the blanking stations respectively, one end of each waist-shaped fixed beam is a wax injection station, an automatic wax injection device is erected on the wax injection station, the wax injection station is located at one end of the waist-shaped fixed beam corresponding to the direction of the output end of each blanking station, a cooling station is arranged on the other side of each waist-shaped fixed beam, a cooling water spraying device is erected above the circulating conveying roller set where the cooling station is located, and a water receiving groove is arranged below the circulating conveying roller corresponding to the cooling water spraying device.

8. The modular wax element structure of claim 6 in the process of casting the blank of the upper and lower shells in the hooking and relieving device, which is characterized in that: the circular conveying roller group including carrying the axle, carry epaxial cover and be equipped with the roller shell, the last terminal surface that goes up of roller shell is a little higher than waist shape fixed beam, carry the both ends of axle fixed mounting respectively on waist shape fixed beam, carry the inboard of a tip of axle to install driving sprocket respectively, driving sprocket is double sprocket, and adjacent sprocket of carrying between the axle passes through chain drive and connects, a driving motor drive that the below of circulating conveying roller was erect is passed through in the drive of double sprocket, drive gear is installed to driving motor's output.

9. The modular wax element structure of claim 6 in the process of casting the blank of the upper and lower shells in the hooking and relieving device, which is characterized in that: the guide platform including the support, the support is put on the shelf and is equipped with the unloading operation panel, the transition conveying roller that a plurality of intervals set up has been erect between the waist shape fixed beam in unloading operation panel and the outside, the transition conveying roller is including the fixed axle, the both ends of fixed axle are fixed mounting respectively on the fixed beam of its both sides, rotate on the fixed axle and install the roller shell, the last roll surface of roller shell is a little higher than the up end of unloading operation panel and waist shape fixed beam.

10. The modular wax element structure of claim 6 in the process of casting the blank of the upper and lower shells in the hooking and relieving device, which is characterized in that: automatic annotate wax device including erectting the fixing base in annotating wax station circulation conveying roller set top, the fixed plate of liftable is installed to the below of fixing base, the wax injection pipe is installed to the below of fixed plate, the upper end import of wax injection pipe is connected to storing up the wax jar through the pipeline, and installs solenoid electric valve on the pipeline, the cylinder drive of lift through its top of fixed plate.

Technical Field

The invention relates to the field of casting production and processing, and mainly relates to a die set wax piece structure for upper and lower shell castings in a hooking and relieving device and a tree assembling process thereof.

Background

The coupler and buffer device is one of the most basic and important parts of the vehicle, and plays a role in buffering longitudinal impulse between vehicles and protecting the vehicles, drivers and passengers and vehicle-mounted equipment. Therefore, the structural performance requirement is higher, although the upper and lower shell casting process in the prior art adopts wax mold casting, after the wax mold of the model and other casting head wax molds are combined, the mixture of silica sol and quartz sand powder (the fine powder is coated and the coarse powder is coated after going) is coated to enough layers, and after the mixture is dried, dewaxing is carried out, a transverse shell opening is punched and placed in a device for generating steam, the wax is melted by the steam and recovered only a transverse shell is left, then molten steel is poured from the opening of the transverse shell during pouring, and a casting can be formed, the original process casting process has the advantages that the structure of the wax mold is simple, only a main wax piece with the same structure as the blank casting of the upper and lower shells, a spherical fastener which is horizontally placed and positioned above the main wax piece and a pull rib used for connecting a convex rib part at the end part of the main wax piece are included, the structure is simple, and 100 percent of the blank after casting molding has shrinkage cavity defects, therefore, the product quality is affected, and the requirements of high-precision production and processing cannot be met, so that the process needs to be improved.

Disclosure of Invention

The invention aims to make up the defects of the prior art, provides a die set wax piece structure for upper and lower shell castings in a hook and cushioning device and a tree assembling process thereof, and aims to solve the problems in the background art.

The invention is realized by the following technical scheme:

a mould wax component structure in the process of rough casting of upper and lower shells of a coupler and draft gear comprises a main wax component with the same structure as the rough casting of the upper and lower shells, the main wax part is vertically arranged, the side of the arc-shaped surface of the main wax part is provided with a pouring wax part, the bottom end of the main wax part is provided with a pouring head part I integrated with the main wax part, the bottom end of the casting head piece I is connected with a casting head piece II which is connected with the main wax piece and is horizontally arranged, a third casting head piece and a fourth casting head piece which are arranged in parallel at a vertical interval are arranged on the side of the concave cavity surface of the main wax piece, the third casting head piece and the fourth casting head piece have the same structure, the bottom end parts of the three casting head parts and the four casting head parts are fixedly connected through a lacing wire, the bottom end parts of the three casting head parts and the four casting head parts are provided with steps, and the inner side surfaces of the casting head piece III and the casting head piece IV below the step are respectively connected with an inner casting head piece connected with a convex rib at the inner side of the main wax piece.

The pouring gate wax piece comprises a vertical cylinder, a pouring gate rod piece is arranged at the upper end of the cylinder, and the specification of the pouring gate rod piece I is smaller than that of the main wax piece.

The cross section of the column body is of a rectangular structure, and the cross section of the first casting head part is of a square structure.

The lower end surfaces of the first dead head part, the third dead head part and the fourth dead head part are positioned at the same height and protrude 5-10mm from the lower end surface of the main wax part.

The mould wax piece in the middle and upper shell blank casting process in the hooking and slowing device is characterized in that the specific tree assembling process is as follows:

(1) firstly, manufacturing corresponding wax patterns through molds corresponding to a main wax piece, a first casting head piece, a second casting head piece, a third casting head piece, a fourth casting head piece and an inner pouring head piece, placing the molds on a wax pattern processing production line for wax injection during wax injection, transferring the molds on a production line after wax injection, automatically spraying water for cooling, pulling the molds to an operation table by manually pulling slightly after the molds are moved to a blanking operation table position, and pushing the molds to the production line after the molds are taken down;

(2) placing each formed wax piece on an assembly workbench, and during specific welding and assembly, firstly assembling a casting head piece I and a casting head piece II into a structural piece I, placing the structural piece I on one side for standby, simultaneously assembling a casting head piece III, a casting head piece IV and an inner casting head piece into a structural piece II, placing the structural piece II on one side for standby, paying attention to prevent extrusion deformation during placement, and simultaneously taking waste products with meat deficiency, deformation and unclear marks as waste products without resistance welding;

(3) then place main wax spare on clean and tidy platform, weld group tree to its both sides, make it form module wax spare, its welding group tree in-process, the fash needs to be repaired with the wax water, the wax spare surface after the group tree is not allowed to have wax bits, hole can.

(4) After the solder resist is welded, wax chips are blown off, wax beans are scraped, and the wax beans are inserted into a wax model frame for standby.

The wax pattern processing production line comprises a support, two waist-shaped fixed beams arranged inside and outside in parallel are erected on the support, circulating conveying roller sets arranged at intervals are distributed between the waist-shaped fixed beams, a plurality of blanking stations arranged at intervals are distributed on one side of each waist-shaped fixed beam, material guide platforms are erected on the blanking stations respectively, one end of each waist-shaped fixed beam is a wax injection station, an automatic wax injection device is erected on the wax injection station, the wax injection station is located at one end of the waist-shaped fixed beam corresponding to the direction of the output end of the blanking station, a cooling station is arranged on the other side of each waist-shaped fixed beam, a cooling water spray device is erected above the circulating conveying roller set where the cooling station is located, and a water receiving groove is formed below the circulating conveying roller corresponding to the cooling water spray device.

The circular conveying roller group including carrying the axle, carry epaxial cover and be equipped with the roller shell, the last terminal surface that goes up of roller shell is a little higher than waist shape fixed beam, carry the both ends of axle fixed mounting respectively on waist shape fixed beam, carry the inboard of a tip of axle to install driving sprocket respectively, driving sprocket is double sprocket, and adjacent sprocket of carrying between the axle passes through chain drive and connects, a driving motor drive that the below of circulating conveying roller was erect is passed through in the drive of double sprocket, drive gear is installed to driving motor's output.

The guide platform including the support, the support is put on the shelf and is equipped with the unloading operation panel, the transition conveying roller that a plurality of intervals set up has been erect between the waist shape fixed beam in unloading operation panel and the outside, the transition conveying roller is including the fixed axle, the both ends of fixed axle are fixed mounting respectively on the fixed beam of its both sides, rotate on the fixed axle and install the roller shell, the last roll surface of roller shell is a little higher than the up end of unloading operation panel and waist shape fixed beam.

Automatic annotate wax device including erectting the fixing base in annotating wax station circulation conveying roller set top, the fixed plate of liftable is installed to the below of fixing base, the wax injection pipe is installed to the below of fixed plate, the upper end import of wax injection pipe is connected to storing up the wax jar through the pipeline, and installs solenoid electric valve on the pipeline, the cylinder drive of lift through its top of fixed plate.

The principle is as follows: through the module wax spare structure after the improvement, the problem of the shrinkage cavity defect that appears in the prior art has been solved, concrete surface does, the vertical placement of main wax spare of this application, through the structure of the third and fourth casting head spare of the pouring head spare of its one side and casting head spare of opposite side, the support performance of main wax spare has been strengthened, the casting head of wax pattern has been increased simultaneously, thereby gas in the better emission die cavity and the effect of collecting the metal liquid that the liquid flow front mixes inclusion or oxide film have been reached, in order to reduce the defect on the foundry goods, the liquid shrinkage of compensation metal liquid in the die cavity and the shrink of foundry goods solidification in-process, in order to obtain the tight foundry goods that does not have the shrinkage cavity, when making things convenient for the foundry goods shaping, the quality of product has been guaranteed.

The invention has the advantages that:

the improved mould wax piece structure has reasonable structural design, solves the problem of shrinkage cavity defect in the prior art through the improved mould wax piece structure, obtains compact castings without shrinkage cavities, is convenient for casting molding, and ensures the quality of products.

Drawings

FIG. 1 is a schematic view of a wax mold according to the present invention.

Fig. 2 is a schematic structural view of a wax pattern processing line.

Fig. 3 is an enlarged view of a structure at a in fig. 2.

Fig. 4 is a schematic structural diagram of an automatic wax injection device.

Reference numerals:

1. a main wax piece; 2. a runner wax piece; 3. casting a first head part; 4. casting head parts II; 5. casting head parts III; 6. casting head parts; 7. an inner gate member; 2-1, column; 2-2, a gate bar; 8. a waist-shaped fixed beam; 9. a circulating conveying roller set; 10. a material guide table; 11. an automatic wax injection device; 12. a cooling water spray device; 13. a water receiving tank; 9-1, a conveying shaft; 9-2, roller sleeves; 9-3, a driving chain wheel; 10-1, a blanking operating platform; 10-2, transition conveying rollers; 14. a fixed seat; 15. a fixing plate; 16. injecting a wax pipe; 17. a wax storage tank.

Detailed Description

See the drawings.

A die set wax part structure in the middle and upper shell body blank casting process of a coupler yoke device comprises a main wax part 1 which is the same as the upper and lower shell body blank casting structures, the main wax part 1 is vertically arranged, a pouring wax part 2 is arranged on the side of the arc surface of the main wax part 1, a pouring head part I3 which is integrated with the main wax part 1 is arranged at the bottom end of the main wax part 1, a pouring head part II 4 which is connected with the main wax part 1 and is horizontally arranged is connected with the bottom end of the pouring head part I3, two pouring head parts III 5 and four pouring head parts 6 which are arranged in parallel and vertically at intervals are arranged on the side of the cavity surface of the main wax part 1, the structures of the pouring head parts III 5 and the pouring head parts IV 6 are the same, the bottom end parts of the three casting head parts and the four casting head parts are fixedly connected through lacing wires, the bottom end parts of the three casting head parts 5 and the four casting head parts 6 are provided with steps, and the inner side surfaces of the third dead head part 5 and the fourth dead head part 6 below the step are respectively connected with an inner gate part 7 connected with a convex rib on the inner side of the main wax part 1. The pouring gate wax part 2 comprises a vertical cylinder 2-1, the upper end part of the cylinder 2-1 is provided with a pouring gate rod part 2-2, and the specification of a pouring gate part 3 is smaller than that of the main wax part 1. The section of the column body 2-1 is of a rectangular structure, and the section of the first casting riser part 3 is of a square structure. The lower end faces of the first casting head part 3, the third casting head part 5 and the fourth casting head part 5 are located at the same height and protrude 5-10mm from the lower end face of the main wax part 1.

Further, the mould wax piece in the middle and upper shell blank casting process in the hooking and relieving device, the specific tree assembling process is as follows:

(1) firstly, manufacturing corresponding wax patterns through molds corresponding to a main wax part 1, a casting head part I3, a casting head part II 4, a casting head part III 5, a casting head part IV 6 and an inner pouring head part 7, placing the molds on a wax pattern processing production line for wax injection during wax injection, transferring the molds on a production line after wax injection, automatically spraying water for cooling, pulling the molds to an operation table after moving to a blanking operation table, and pushing the molds to the production line after removing the wax molds by manually and slightly pulling;

(2) placing each formed wax piece on an assembly workbench, and during specific welding and assembly, firstly assembling a casting head piece I and a casting head piece II into a structural piece I, placing the structural piece I on one side for standby, simultaneously assembling a casting head piece III, a casting head piece IV and an inner casting head piece into a structural piece II, placing the structural piece II on one side for standby, paying attention to prevent extrusion deformation during placement, and simultaneously taking waste products with meat deficiency, deformation and unclear marks as waste products without resistance welding;

(3) then place main wax spare on clean and tidy platform, weld group tree to its both sides, make it form module wax spare, its welding group tree in-process, the fash needs to be repaired with the wax water, the wax spare surface after the group tree is not allowed to have wax bits, hole can.

(4) After the solder resist is welded, wax chips are blown off, wax beans are scraped, and the wax beans are inserted into a wax model frame for standby.

Further, the wax pattern processing production line comprises a support, two waist-shaped fixed beams 8 arranged inside and outside in parallel are erected on the support, circulating conveying roller sets 9 arranged at intervals are distributed between the waist-shaped fixed beams 8, a plurality of blanking stations arranged at intervals are distributed on one side of each waist-shaped fixed beam 8, guide platforms 10 are erected on the blanking stations respectively, one end of each waist-shaped fixed beam 8 is a wax injection station, an automatic wax injection device 11 is erected on the wax injection station, the wax injection station is located at one end of each waist-shaped fixed beam 8 corresponding to the output end direction of the blanking station, a cooling station is arranged on the other side of each waist-shaped fixed beam 8, a cooling water spraying device 12 is erected above the circulating conveying roller set where the cooling station is located, and a water receiving groove 13 is formed below the circulating conveying roller at the position corresponding to the cooling water spraying device 12. The whole conveying can form circulation through the structures of the waist-shaped fixed beam and the circulating conveying roller set, when the mold is conveyed to a wax injection station, the circulating conveying roller set stops running, the mold at the position is injected with wax through the wax injection device, after the wax injection is finished, the circulating conveying roller set continues running, the mold at the next station is injected with wax, the mold after the wax injection is conveyed to a cooling station along with the intermittent conveying of the circulating conveying roller set and is quickly cooled through circulating water, the cooled mold is conveyed to a blanking station along with the circulating conveying roller set, the mold is blanked through manpower corresponding to the blanking station, in the whole process, the mold is turned around on a production line after the wax is injected, the water is automatically sprayed for cooling, and after the mold runs to the blanking station, the mold can be pulled to an operation table through the manual light pulling, after the wax mold is taken down, the mold is pushed to the production line again, only the blanking station needs to carry out blanking operation, the rest operations are carried out automatically, the labor is saved, the efficiency is improved along with the repeated operation of the circulating conveying roller set, and the requirement of batch wax mold processing production is met.

Further, the circulating conveying roller group 9 comprises a conveying shaft 9-1, a roller sleeve 9-2 is sleeved on the conveying shaft 9-1, the upper roller surface of the roller sleeve 9-2 is slightly higher than the upper end surface of the waist-shaped fixed beam 8, two ends of the conveying shaft 9-1 are respectively and fixedly installed on the waist-shaped fixed beam 8, a driving chain wheel 9-3 is respectively installed on the inner side of one end of the conveying shaft 9-1, the driving chain wheels 9-3 are double-row chain wheels, chain wheels between the adjacent conveying shafts 9-1 are connected through chain transmission, the double-row chain wheels are driven by a driving motor installed below the circulating conveying roller group 9, and the output end of the driving motor is provided with a driving gear. The material guiding platform 10 comprises a support, a blanking operation platform 10-1 is erected on the support, a plurality of transition conveying rollers 10-2 arranged at intervals are erected between the blanking operation platform 10-1 and a waist-shaped fixed beam on the outer side, each transition conveying roller 10-2 comprises a fixed shaft, two ends of each fixed shaft are respectively fixedly arranged on the fixed beams on two sides of the fixed shaft, a roller sleeve is rotatably arranged on each fixed shaft, and the upper roller surface of each roller sleeve is slightly higher than the upper end surfaces of the blanking operation platform 10-1 and the waist-shaped fixed beam. Automatic annotate wax device 11 is including erectting the fixing base 14 in annotating wax station circulation conveying roller set 9 top, and the fixed plate 15 of liftable is installed to the below of fixing base 14, and wax injection pipe 16 is installed to the below of fixed plate 15, and the upper end import of wax injection pipe 16 is connected to storing up wax jar 17 through the pipeline, and installs the solenoid electric valve on the pipeline, and the cylinder drive of the lift of fixed plate 15 through its top.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be further noted that, unless otherwise specifically stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, connected through an intermediate medium, or connected through the insides of two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.