CN105618729A - Special machine for making automobile brake disc workblank and technology for casting brake disc workblank - Google Patents

Abstract

The invention discloses a special machine for making automobile brake disc blanks and a process for pouring brake disc blanks, comprising an upper sand mold molding system, a lower sand mold molding system and a pouring system; The inner bottom of the upper sand mold cavity is equipped with an upper sand mold bottom dynamic hydraulic ejector device for separating and ejecting the upper sand mold after forming; the lower sand mold molding system includes the lower sand mold molding host, the lower sand mold scraper and the sand mold transfer device. The device transfers the lower sand mold from the fixed platform to the brake disc pouring station. The lower sand mold cavity is connected with the dynamic hydraulic device at the bottom of the lower sand mold. The dynamic hydraulic device at the bottom of the lower sand mold drives the lower sand mold cavity and the fixed platform. Inside the cavity, the bottom of the lower sand mold cavity and the fixed platform are provided with an iron channel forming mechanism. The invention has the advantages of improving casting yield, reducing casting cost, reducing labor intensity and the like.

Description

Special machine for making automobile brake disc blanks and the process of pouring brake disc blanks

technical field

The invention belongs to the technical field of casting of automobile brake disc blanks, and specifically discloses a special machine for making automobile brake disc blanks and a process for casting the brake disc blanks.

Background technique

The brake disc is a vulnerable part of the automobile braking system. With the rapid development of the automobile industry, the market demand for the brake disc is huge. At present, the manufacturing yield of brake disc blanks is low, the labor intensity is high, and the efficiency is low. During the casting process of brake disc blanks, problems such as wrong box, box expansion, pores, trachoma, and shrinkage porosity occurred. In the past, air impurities in the mold cavity were difficult to quickly /Smoothly discharged, during the manufacturing process of automobile brake disc blanks, the phenomenon of wrong box, box expansion, air holes, sand holes, shrinkage porosity and other phenomena lead to low casting yield, low utilization rate of molten iron, and high casting cost.

Contents of the invention

Aiming at the deficiencies of the prior art, the object of the present invention is to provide a special machine for making automobile brake disc blanks and a process for pouring brake disc blanks, which can improve casting yield, reduce casting cost, and reduce labor intensity.

The technical solution adopted in the present invention is: a special machine for making automobile brake disc blanks, a special machine for making automobile brake disc blanks, characterized in that, the special machine for making automobile brake disc blanks includes a lower sand molding system; the lower sand molding system includes a lower sand molding host, a lower sand mold Scraper (103) and sand mold transfer device, the lower sand mold molding host includes the lower sand mold bottom dynamic hydraulic device, the lower sand mold upper dynamic hydraulic device, the lower sand mold cavity and the fixed platform, and the lower sand mold upper mold plate is fixed on the lower sand mold upper dynamic hydraulic device On the lower side, the upper mold plate of the lower sand mold is equipped with multiple cavity forming units. The lower sand mold cavity is set around the fixed platform. The lower sand mold cavity or the fixed platform is connected to the dynamic hydraulic device at the bottom of the lower sand mold. There is an iron water channel forming mechanism on the flat plate. The lower sand mold bottom dynamic hydraulic device drives the lower sand mold cavity down or the fixed platform rises, and the formed lower sand mold is placed on the fixed platform. The sand mold transfer device transfers the lower sand mold from the fixed platform to the brake. Tray pouring station.

The sand mold conveying device includes a sand mold pusher and a sand mold conveying device respectively arranged on both sides of the lower sand molding host.

The lower tooling is placed on the sand mold conveying device, and a mobile lower sand mold conveying mechanism is also provided between the lower sand mold molding host and the sand mold conveying device. The lower sand mold bottom dynamic hydraulic device drives the lower sand mold cavity to separate from the fixed platform, and the sand mold pusher Push the lower sand mold to slide horizontally, the mobile lower sand mold supporting mechanism takes over one end of the lower sand mold, and the mobile lower sand mold supporting mechanism and the sand mold pusher put the lower sand mold into the lower tooling.

The mobile lower sand mold supporting mechanism includes an L-shaped lower sand mold receiving plate, which is connected to a slider through a connecting rod, and the slider is horizontally slidably arranged on the guide column.

The iron waterway forming mechanism is an I-shaped iron waterway boss arranged on the upper side of the bottom of the lower sand mold cavity. The longitudinal section of the iron waterway boss is trapezoidal, and a channel for the iron waterway boss to pass is opened on the fixed platform.

The upper mold plate of the lower sand mold is provided with eight cavity forming units.

A process for casting brake disc blanks by using a special machine for making brake disc blanks, characterized in that the special machine for making also includes a sand molding system, which includes a sand molding host and a sand scraping machine, and sand molding The main engine includes upper mold plate of upper sand mold, lower cavity of upper sand mold and upper dynamic hydraulic device of upper sand mold. The upper sand mold forming cavity is equipped with a bottom dynamic hydraulic ejector device at the bottom of the upper sand mold forming cavity, and the upper mold plate of the upper sand mold is equipped with a plurality of downward protruding extrusion dies;

Described process comprises the following steps:

Step 1, making upper sand molds, making one, four or other number of upper sand molds each time;

Step 101, inject sand into the lower cavity of the upper sand mold, and scrape it with the upper sand mold scraper;

Step 102, start the upper dynamic hydraulic device for the upper sand mold, lower the upper mold plate of the upper sand mold to close to the molding cavity of the upper sand mold, and then continue to press down to the set height and then rise;

Step 103, start the dynamic hydraulic ejector device at the bottom of the upper sand mold, eject the upper sand mold from the bottom upward, and complete the production of the upper sand mold;

Step 2. Make the lower sand mold

Step 201, start the dynamic hydraulic device at the bottom of the lower sand mold, raise the upper part of the lower sand mold cavity to a set height and then stop;

Step 202, inject sand into the mold cavity of the downward sand mold, and scrape it with the sand mold scraper;

Step 203, start the upper dynamic hydraulic device of the lower sand mold, and press out the cavity of the lower sand mold;

Step 204, lowering the dynamic hydraulic device at the bottom of the lower sand mold until the top of the cavity of the lower sand mold is lower than the fixed platform, and the lower sand mold stays on the fixed platform;

Step 205, start the sand mold pushing device, push one end of the lower sand mold out of the lower sand mold molding machine, the mobile lower sand mold supporting mechanism supports the lower sand mold, and the lower sand mold falls on the lower tooling on the platform of the conveying device;

Step 206, connecting the lower tooling and the lower sand mold;

Step 207, keep the upper sand mold horizontally and put it into the mold cavity vertically, buckle the upper tooling on the upper side of the sand mold, press the upper sand mold with the upper sand mold fixing mechanism, and use the hook of the eccentric shaft to fix the connection between the upper tooling and the lower tooling. The sand mold moves to the pouring position;

Step 208: pour the molten iron from the sprue, the molten iron passes through the sprue to the bottom of the sand mold, and then pours it into the mold cavity through the iron channel, and the casting blank workpiece of the brake disc is formed in the cavity; the air in the cavity and during the pouring process The generated impurities are quickly discharged upward through the exhaust slot and the feeding riser.

The feeding hole forming mechanism is a plurality of tapered feeding hole bosses.

The diameter of the upper sand mold forming cavity is smaller than the diameter of the cavity forming unit, and an exhaust joint is formed between the upper sand mold and the cavity; the outer wall of the cavity forming unit is provided with a plurality of limiting platform forming grooves, and the limiting platform forming grooves make The inner wall of the cavity forms a plurality of limiting platforms.

The bottom of the upper sand molding cavity is provided with a positioning boss forming cavity, and the lower end of the cavity forming unit is correspondingly provided with a positioning groove forming boss; the lower side of the extrusion mold is provided with an upper sand mold clamping hole forming boss , the upper sand mold clamping hole formed by the extrusion of the upper sand mold clamping hole forming boss runs through the upper sand mold.

The beneficial effects of the present invention are as follows:

In the special machine for producing automobile brake disc blanks provided by the present invention, the lower sand mold bottom dynamic hydraulic device drives the lower sand mold cavity to lift to realize the opening and closing of the lower sand mold cavity and the fixed platform, and the lower sand mold bottom dynamic hydraulic device drives the lower sand mold cavity to descend and is The separation of the fixed platform can separate the lower sand mold formed by pressing from the cavity of the lower sand mold. The lower sand mold stays on the fixed platform, and it is very convenient to push the lower sand mold from the fixed platform to the next process. The operation is very convenient, and the lower sand mold The upper mold plate of the sand mold is equipped with multiple cavity forming units, which can form multiple mold cavities on the lower sand mold, and can cast multiple brake discs at the same time. One water riser can pour multiple brake disc blanks at one time, which improves the utilization rate of molten iron and reduces Casting cost, improve casting efficiency. The upper mold plate and the upper sand mold cavity jointly press multiple upper sand molds, and the dynamic hydraulic ejector device at the bottom of the upper sand mold ejects the pressed upper sand mold. The structure is simple, the efficiency is high, and the labor intensity is small.

After the upper sand mold and the lower sand mold are made by using the special machine made of the automobile brake disc blank, multiple, eight or even more brake discs can be poured at the same time by using horizontal pouring to improve work efficiency; the upper sand mold is directly fixed in the mold cavity, It effectively solves the problem of easy wrong box in the past pouring process.

Description of drawings

Fig. 1 is a three-dimensional structural schematic diagram of the sand molding system of the present invention.

Fig. 2 is a schematic perspective view of the three-dimensional structure of the upper sand molding system from another perspective.

Fig. 3 is a schematic diagram of the three-dimensional structure of the lower sand molding system.

Fig. 4 is a schematic perspective view of the three-dimensional structure of the lower sand molding system from another perspective.

Fig. 5 is a structural schematic diagram of the fixed platform and the lower sand mold cavity.

Figure 6 is a three-dimensional exploded view of the assembly of the upper sand mold and the lower sand mold.

Fig. 7 is another three-dimensional exploded view of the assembly of the upper sand mold and the lower sand mold.

Fig. 8 is a structural schematic diagram of the hook of the eccentric shaft.

Among them, 101, the lower sand mold molding main frame 102, the mobile lower sand mold supporting mechanism 103, the lower sand mold scraper 104, the lower sand mold conveying platform 105, the lower sand mold upper mold plate 106, the lower sand mold cavity 107, the fixed platform 108, Lower sand molding sand delivery port 109, lower sand molding hydraulic console 110, lower sand molding pusher 201, upper sand molding main frame 202, upper sand molding scraper 203, upper sand molding upper mold plate 204, upper sand molding cavity 205, upper sand molding Molding sand delivery port 206, upper sand mold hydraulic console 3, upper tooling 301, upper tooling body 302, beam 303, adjusting screw 304, briquetting block 305, reinforced fixing part 4, upper sand mold 401, feeding riser 402, upper sand mold Clamping hole 403 positioning boss 5, lower sand mold 501, pouring port 502, cavity 503, limit table 504, iron channel 6, lower tooling 601, iron channel bottom lining 602, roller 7, eccentric shaft hook 701, upper Fixed plate 702, eccentric handle 703, connecting rod 704, lower fixed plate.

detailed description

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. The present invention is a special machine for making automobile brake disk blanks, developed on the basis of the applicant's original patent application.

A special machine for making automobile brake disc blanks according to an embodiment of the present invention includes an upper sand molding system and a lower sand molding system. The upper sand molding system is used to process the upper sand mold 4, and the lower sand molding system processes the lower sand mold 5. The upper sand mold 4 and the lower sand mold After the lower sand mold 5 is closed, the brake disc blank is cast.

Referring to Figures 1-2, the sand molding system includes an upper sand molding host and a sand molding scraper 202, the upper sand molding scraper 202 is fixed on one side of the upper sand molding host, and the upper sand molding host includes an upper sand molding plate 203 , the upper sand mold cavity 204 and the upper sand mold upper dynamic hydraulic device, the upper sand mold upper mold plate 203 is fixed on the upper dynamic hydraulic device, and the upper sand mold cavity 204 upper side is provided with a plurality of upper sand mold molding cavities with upward openings. The bottom of the molding cavity is also equipped with a bottom dynamic hydraulic ejector device. The lower side of the upper mold plate 203 of the upper sand mold is provided with a plurality of extrusion dies protruding downward. air holes; the upper sand mold upper dynamic hydraulic device and the bottom dynamic hydraulic ejector device are fixed on the upper sand mold molding main frame 201; the molding sand enters the upper sand mold molding cavity from the upper sand mold molding sand delivery port 205, and the upper sand mold upper mold plate 203 and The upper sand mold cavity 204 jointly presses a plurality of upper sand molds 4, and the dynamic hydraulic ejector device at the bottom of the upper sand mold ejects the pressed upper sand molds 4. The structure is simple, the efficiency is high, and multiple upper sand molds 4 are pressed at the same time, and the labor intensity is low.

The upper sand type scraper 202 is driven by hydraulic pressure, and the hydraulic rod end of the upper sand type scraper 202 fixes the I-shaped scraper main body. The upper sand mold scraper 202 , the upper sand mold upper dynamic hydraulic device and the upper sand mold bottom dynamic hydraulic ejector device are all connected to the upper sand mold hydraulic console 206 . The upper dynamic hydraulic device of the upper sand mold and the bottom dynamic hydraulic ejector device are connected with four guide pillars to slide and set, which drives the upper mold plate 203 of the upper sand mold and the ejector mechanism to rise and fall vertically, thereby ensuring the parallelism and levelness of the upper sand mold 4. The sand mold cavity 204 can also be connected with the four guide pillars without affecting the movement of the dynamic hydraulic ejector device at the bottom of the upper sand mold.

The upper sand molding cavity 204 in this embodiment is provided with four upper sand molding cavities opening upwards. The feeding port forming mechanism is a plurality of conical feeding hole bosses with a large top and a small bottom, so that a plurality of conical feeding risers 401 are formed on the upper sand mold 4, and the brake disc is directly fed during the pouring process. loose. Further, multiple sets of auxiliary columns are fixed on the upper end of the dynamic hydraulic ejector device at the bottom of the upper sand mold. Each upper sand mold forming cavity corresponds to a set of auxiliary columns. The upper sand mold holding hole 402 obtained by holding the hole forming boss runs through the upper sand mold 4 . The upper sand mold clamping hole forming boss forms a transparent vent hole and multiple upper sand mold clamping holes 402 on the upper sand mold 4. The upper sand mold 4 can be easily taken and placed through the upper sand mold clamping holes 402, ensuring that the upper sand mold 4 Put it into the lower sand mold 5 in parallel, and the upper sand mold clamping hole 402 obtained by forming the boss of the upper sand mold clamping hole in this embodiment runs through the upper sand mold 4, and the upper sand mold clamping hole 402 is a tapered shape with a large upper part and a smaller lower part. structure, the upper sand mold clamping hole 402 has the function of venting, and the venting effect is more ideal, which effectively improves the casting quality and improves the pouring efficiency.

The diameter of the molding cavity of the upper sand mold is smaller than the diameter of the molding unit of the cavity, and an air vent gap is formed between the upper sand mold 4 and the cavity 502. When the brake disc is cast, the molten iron flows from bottom to top. When the molten iron is poured into the cavity 502, the entire The air in the mold cavity 502 is directly, smoothly and evenly discharged from the exhaust slot between the upper sand mold 4 and the lower sand mold 5 from bottom to top.

Referring to Figures 3 to 5, the lower sand molding system includes a lower sand molding host and a lower sand mold scraper 103, and the lower sand molding host includes a lower sand mold bottom dynamic hydraulic device and a lower sand mold upper dynamic hydraulic device fixed on the lower sand mold molding main frame 101. With the fixed platform 107, the upper mold plate 105 of the lower sand mold is fixed on the lower side of the upper dynamic hydraulic device of the lower sand mold. The upper mold plate 105 of the lower sand mold is provided with a plurality of cavity forming units. The sand mold bottom dynamic hydraulic device drives the lower sand mold cavity 106 up and down to realize the opening and closing of the lower sand mold cavity 106 and the fixed platform 107. The lower sand mold cavity 106 is a cavity for containing molding sand, and the lower sand mold bottom dynamic hydraulic device drives the lower sand mold cavity After 106 descends, it is separated from the fixed platform 107, so that the lower sand mold 5 and the lower sand mold cavity 106 separated by pressing can be separated, and the lower sand mold 5 is fixed on the fixed platform 107, and the lower sand mold 5 can be pushed from the fixed platform 107 very conveniently. To the next process, the operation is very convenient, and the upper mold plate 105 of the lower sand mold is provided with multiple cavity forming units, which can form multiple mold cavities 502 on the lower sand mold 5, and can cast multiple brake discs at the same time, which improves the casting efficiency. The fixed platform 107 is located inside the lower sand mold cavity 106 , and the lower sand mold cavity 106 is provided with an iron channel forming mechanism, thereby forming an iron channel 504 at the bottom of the lower sand mold 5 . Specifically, the upper mold plate 105 of the lower sand mold in this embodiment is provided with eight cavity forming units.

Further, sand mold pushers and sand mold conveying devices are respectively provided on both sides of the lower sand mold molding host. The sand mold pusher is used to push the lower sand mold 5 on the fixed platform 107 to the sand mold conveying device, so as to improve work efficiency and reduce labor intensity. The lower sand mold conveying device is the lower sand mold conveying platform 104, the lower tooling 6 is placed on the lower sand mold conveying platform 104, the sand mold conveying device is the lower sand mold pusher 110, and a movable lower sand mold holder is also arranged between the lower sand mold molding host and the sand mold conveying device The lower sand mold bottom dynamic hydraulic device drives the lower sand mold cavity 106 to separate from the fixed platform 107. The lower sand mold pusher 110 pushes the lower sand mold 5 to slide horizontally. The mobile lower sand mold supporting mechanism 102 receives one end of the lower sand mold 5 and moves The sand mold supporting mechanism 102 and the sand mold pushing machine put the lower sand mold 5 into the lower frock 6 under the formula. The movable lower sand mold supporting mechanism 102 in this embodiment includes an L-shaped lower sand mold receiving plate, which is connected to a slider through a connecting rod, and the slider is horizontally slidably arranged on a guide column.

The lower sand mold scraper 103, the sand mold pushing machine and the sand mold conveying device are all hydraulically driven, and the lower sand mold scraping machine 103, the lower sand mold bottom dynamic hydraulic device, the lower sand mold upper dynamic hydraulic device, the sand mold pushing machine and the sand mold conveying device are all connected to The following sand mold hydraulic console 109, the lower sand mold scraper 103 hydraulic rod ends fix the I-shaped scraping main body. The upper dynamic hydraulic device of the lower sand mold and the lower sand mold bottom dynamic hydraulic device are connected with four guide pillars to slide and set, which drives the upper mold plate 105 of the lower sand mold and the cavity 106 of the lower sand mold to rise and fall vertically, thereby ensuring the parallelism and levelness of the lower sand mold 5 .

The iron waterway forming mechanism is an I-shaped iron waterway boss arranged on the upper side of the lower sand mold cavity 106 bottom plate, and the fixed platform 107 is provided with a passage for the iron waterway boss to pass through. The outer wall of the cavity forming unit is provided with a plurality of limit table forming grooves, and the limit table forming grooves make the inner wall of the cavity 502 form a plurality of limit tables 503, and the limit table 503 limits the upper sand mold 4 and keeps the upper sand mold 4 The parallelism and perpendicularity with the lower sand mold 5 can effectively improve the accuracy of the casting, reduce the processing amount of the brake disc blank, and reduce the casting cost, and the limit table 503 ensures the uniformity of the exhaust seam, making the exhaust even and smooth , Improved pouring quality. The upper part of the upper sand mold forming cavity is provided with a positioning boss forming cavity, and the lower end of the cavity forming unit is correspondingly provided with a positioning groove forming boss. A downward positioning boss 403 can be formed at the lower end of the upper sand mold 4, and a positioning groove corresponding to the positioning boss 403 is formed at the bottom of the cavity 502, and the positioning boss 403 falls into the positioning groove to further position the upper sand mold 4 , so that the entire cavity 502 will not move and deform during the pouring process, ensuring the accuracy, levelness and verticality of the workpiece. The cast workpiece can cancel the rough turning process of the brake disc and directly enter the next step of processing.

The present invention also provides a process for using the above-mentioned automobile brake disc blank to make a special machine for pouring the brake disc blank. The process includes the following steps:

Step 1, making the upper sand mold 4

Step 101: Spray release agent in the cavity of upper sand mold plate 203 and upper sand mold cavity 204, and the molding sand enters the cavity of upper sand mold cavity 204 through upper sand mold molding sand delivery port 205, and the upper sand mold scraper 202 scrape;

Step 102: Start the upper dynamic hydraulic device for the upper sand mold, lower the upper mold plate 203 of the upper sand mold to close to the molding cavity of the upper sand mold, then continue to press down to the set height and then rise. If the strength of the upper sand mold is not enough, it can be repeatedly extruded once

Step 103: Start the dynamic hydraulic ejector device at the bottom of the upper sand mold, eject the upper sand mold 4 from the bottom upward, and the upper sand mold clamping hole forming boss forms a plurality of upper sand mold clamping holes 402 penetrating the upper sand mold 4 on the upper sand mold 4 , complete the production of upper sand mold 4;

Step 2, making the lower sand mold 5

Step 201, start the dynamic hydraulic device at the bottom of the lower sand mold, and raise the lower sand mold cavity 106 to the height of the fixed platform 107;

Step 202, inject sand into the cavity 106 of the downward sand mold from the lower sand molding sand delivery port 108, and scrape it with the lower sand mold scraper 103;

Step 203, start the upper dynamic hydraulic device for the lower sand mold, and press out the mold cavity 502;

Step 204, lowering the dynamic hydraulic device at the bottom of the lower sand mold until the top of the lower sand mold cavity 106 is lower than the fixed platform 107, and the lower sand mold 5 stays on the fixed platform 107;

Step 205, start the lower sand mold pusher 110, push one end of the lower sand mold 5 out of the position of about one-third of the lower sand mold molding host, the mobile lower sand mold supporting mechanism 102 supports the lower sand mold 5, and the lower sand mold pusher 110 continues to push The lower sand mold 5 falls on the lower tooling 6 on the conveyor platform;

Step 206, connecting the lower tooling 6 and the lower sand mold 5;

Step 207, keep the upper sand mold 4 horizontal and put it into the mold cavity 502 along the vertical direction, buckle the upper tooling 3 on the upper side of the sand mold, fix it at multiple points, and keep the verticality and level of the inner mold cavity of the upper sand mold 4 and the lower sand mold 5 The upper sand mold fixing mechanism presses the upper sand mold 4, uses the hook of the eccentric shaft to fix and connect the upper tooling 3 and the lower tooling 6, and moves the sand mold to the pouring platform;

Step 208: pour the molten iron from the pouring port 501, and pour the molten iron between the cavity 502 and the upper sand mold 4 through the iron channel 504, and the air in the cavity 502 and some impurities generated during the pouring process pass through the air vent and feeding The riser 401 is discharged upwards out of the sand box; the transparent exhaust in the middle of the upper sand mold and the sand in the lower sand mold are slow exhaust processes.

Referring to Figures 6-7, the upper tooling 3 is composed of an upper tooling body 301 and a beam 302, the two beams 302 are fixed on the upper side of the upper tooling body 301, the upper tooling 3 is a rectangular frame structure, and the upper end of the adjusting screw 303 is adjustable in height through a nut ground connected to the beam 302, the pressure block 304 can be fixedly connected with the adjusting screw 303, and can also be connected flexibly. The lower end of the upper sand mold clamping hole 402 of the upper sand mold 4 runs through the lower side of the positioning boss 403, and the upper end area of the upper sand mold clamping hole 402 is larger than its lower end area, forming a tapered shape with a large upper part and a smaller lower part.

The bottom lining 601 of the iron waterway 504 of the lower tooling 6 is arranged along the direction of the iron waterway 504. The iron waterway 504 bottom lining 601 has a U-shaped groove, and the U-shaped groove is filled with a refractory material flush with the upper surface of the iron waterway 504 bottom lining 601. The lower side of the lower sand mold 6 is also provided with a roller 602, which can move the sand mold to the pouring platform very conveniently.

Referring to Fig. 8, the eccentric shaft hook 7 includes an upper fixed plate 701, a connecting rod 703, a lower fixed plate 704 and an eccentric handle 702, the lower end of the connecting rod 703 is fixedly connected with the lower fixed plate 704, and the upper end of the connecting rod 703 passes through the upper fixed plate 701 Connect the eccentric handle 702 behind the upper hole, turn the eccentric handle 702, the eccentric wheel at the front end of the eccentric handle 702 rotates and press down the upper fixing plate 701, so that the upper fixing plate 701 and the lower fixing plate 704 are clamped by the connecting rod 703, thereby clamping Tighten the upper tooling 3, the sand mold and the lower tooling 6.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (10)

1. an automobile brake disc blank makes special plane, it is characterised in that, described making special plane comprises lower sand mold moulding system, lower sand mold moulding system comprises lower sand mold moulding main frame, lower sand mold Slicking apparatus (103) and sand mold transfer device, lower sand mold moulding main frame comprises dynamic hydraulic efficiency plant at the bottom of lower sand mold, dynamic hydraulic efficiency plant on lower sand mold, lower sand mold die cavity (106) and stationary platform (107), lower sand mold cope match plate (105) is fixed on lower sand mold to move on the downside of hydraulic efficiency plant, lower sand mold cope match plate (105) is provided with multiple mold cavity forming unit, lower sand mold die cavity (106) is arranged on stationary platform (107) surrounding, lower sand mold die cavity (106) or stationary platform (107) connect on dynamic hydraulic efficiency plant at the bottom of lower sand mold, lower sand mold die cavity (106) and stationary platform flat board are provided with molten iron road shaping mechanism, after dynamic hydraulic efficiency plant at the bottom of lower sand mold drives lower sand mold die cavity (106) decline or stationary platform (107) to rise, shaping lower sand mold keeps flat on the stationary platform, lower sand mold is transferred to brake flange cast station from stationary platform by sand mold transfer device.

2. automobile brake disc blank according to claim 1 makes special plane, it is characterised in that, described sand mold e Foerderanlage comprises the sand mold pusher and sand mold e Foerderanlage that are separately positioned on lower sand mold moulding main frame both sides.

3. automobile brake disc blank according to claim 2 makes special plane, it is characterized in that, described sand mold e Foerderanlage is placed lower frock (6), between lower sand mold moulding main frame and sand mold e Foerderanlage, also it is provided with under movable type sand mold delivery mechanism (102), dynamic hydraulic efficiency plant at the bottom of lower sand mold drives lower sand mold die cavity (106) to be separated with stationary platform (107), sand mold pusher promotes lower sand mold (5) level to slide, one end of lower sand mold (5) accepted by portable lower sand mold delivery mechanism (102), lower sand mold (5) is put into lower frock (6) with sand mold pusher by portable lower sand mold delivery mechanism (102).

4. automobile brake disc blank according to claim 3 makes special plane, it is characterized in that, under described movable type, sand mold delivery mechanism (102) comprises the lower sand mold bearing plate of L-shaped, and lower sand mold bearing plate is by connecting rod connection sliding block, and what slide block level was slided is arranged on guidepost.

5. automobile brake disc blank according to claim 1 makes special plane, it is characterized in that, described molten iron road shaping mechanism is for being arranged on the work font molten iron road boss of upside, lower sand mold die cavity (106) bottom, the vertical section of molten iron road boss is trapezoidal, stationary platform (107) is offered for the passage that molten iron road boss passes.

6. automobile brake disc blank according to claim 1 makes special plane, it is characterised in that, lower sand mold cope match plate (105) is provided with eight mold cavity forming unit.

7. one kind utilizes the described automobile brake disc blank of the arbitrary item of claim 1��6 to make the technique that brake flange blank poured into a mould by special plane, it is characterized in that, described making special plane also comprises sand mold moulding system, upper sand mold moulding system comprises sand mold moulding main frame and upper sand mold Slicking apparatus (202), upper sand mold moulding main frame comprises sand mold cope match plate (203), upper sand mold lower impressions (204) and upper sand mold move hydraulic efficiency plant, upper sand mold cope match plate (203) is fixed on dynamic hydraulic efficiency plant, upper sand mold lower impressions (204) the inner side upper sand mold forming cavity that to be provided with in multiple formation sand mold corresponding, the dynamic hydraulic liftout apparatus in the end also it is provided with bottom upper sand mold forming cavity, upper sand mold cope match plate (203) is provided with the extrusion mould of multiple downward protrusion,

Described technique comprises the following steps:

Sand mold (4) in step 1, making

In step 101, upwards sand mold lower impressions (204), note sand, is struck off by upper sand mold Slicking apparatus (202);

Dynamic hydraulic efficiency plant on sand mold in step 102, startup, upper sand mold cope match plate (203) is down to closely sealed with upper sand mold forming cavity after continue again to rise after pressing to setting height;

In step 103, startup, dynamic hydraulic liftout apparatus at the bottom of sand mold, is upwards ejected upper sand mold (4) by bottom, completes sand mold (4) and makes;

Step 2, the lower sand mold (5) of making

Dynamic hydraulic efficiency plant at the bottom of step 201, the lower sand mold of startup, stops after the top of lower sand mold die cavity (106) rises to setting height;

In step 202, downwards sand mold die cavity (106), note sand, is struck off by lower sand mold Slicking apparatus (103);

Dynamic hydraulic efficiency plant on step 203, the lower sand mold of startup, extrudes lower sand mold die cavity (502);

Step 204, falling at the bottom of lower sand mold dynamic hydraulic efficiency plant to lower sand mold die cavity (106) top lower than stationary platform (107), lower sand mold (5) stops in stationary platform (107);

Step 205, startup sand mold push device, one end of lower sand mold (5) is released lower sand mold moulding main frame, lower sand mold (5) held by portable lower sand mold delivery mechanism (102), and lower sand mold (5) is dropped in the lower frock (6) on e Foerderanlage platform;

Step 206, the lower frock (6) of connection and lower sand mold (5);

Step 207, by upper sand mold (4) maintenance level and vertically put into die cavity (502), upper frock (3) is buckled in the upside of sand mold, upper sand mold fixed mechanism compresses upper sand mold (4), utilize excentric shaft card to hook and it is fixedly connected with frock (3) and lower frock (6), sand mold is moved to pouring position;

Step 208, molten iron is poured into a mould by sprue gate (501), then molten iron is poured in die cavity (502) through molten iron road (504) through sprue gate (501) to lower sand mold (5) bottom, and the cast blank workpiece of brake flange is formed in die cavity; Air and the impurity of generation in casting process in die cavity (502) are upwards discharged fast through exhaust seam and feeding head (401).

8. the technique of making brake flange blank according to claim 7, it is characterised in that, described feeding mouth shaping mechanism is the feeding hole boss of multiple taper.

9. the technique of making brake flange blank according to claim 7, it is characterised in that, the diameter of described upper sand mold forming cavity is less than the diameter of mold cavity forming unit, forms exhaust seam between upper sand mold (4) and die cavity (502); The outer wall of mold cavity forming unit is provided with multiple limiting stand forming tank, and limiting stand forming tank makes die cavity (502) inwall form multiple limiting stand (503).

10. the technique of making brake flange blank according to claim 7, it is characterised in that, the bottom of described upper sand mold forming cavity is provided with a positioning boss forming cavity, and the lower end correspondence of mold cavity forming unit is provided with a shaping boss of locating slot; Being provided with the shaping boss of sand mold clamping hole on the downside of described extrusion mould, the upper sand mold clamping hole (402) that the extruding of upper sand mold clamping hole shaping boss is formed runs through sand mold (4).