CN214263804U - Steering gear shell die-casting die with good processing effect - Google Patents

Abstract

The utility model relates to a die casting die technical field discloses a steering gear casing die-casting mould that processing is respond well, including fixed die plate and movable mould board, the movable mould board is provided with the movable mould core in just one side to the fixed die plate, the fixed die plate is provided with the fixed die core, form into the die cavity between fixed die core and the movable mould core, still include cinder ladle and the exhaust system that a plurality of and become the die cavity and be linked together, exhaust system is including offering the first exhaust flue on the lateral part of fixed die core with the movable mould core laminating mutually, first exhaust piece and second exhaust piece can laminate and form the exhaust chamber, first exhaust flue includes the first exhaust branch road that is the broken line type with a plurality of and the first exhaust main road of the bucket that links to each other with the exhaust chamber. The utility model discloses set up reasonable in design, respond well exhaust system, can make aluminium liquid fill the gas outgoing die utensil that produces when detaining the gas in the shaping intracavity and die-casting before the die-casting, it is good to fill the type performance, has guaranteed the good processing effect of shaping product.

Description

Steering gear shell die-casting die with good processing effect

Technical Field

The utility model relates to a die casting die technical field, in particular to steering gear shell die-casting mould that processing effect is good.

Background

When people drive a vehicle, people generally steer by turning a steering wheel, in the process, a steering device correspondingly converts steering torque and steering angle from the steering wheel and outputs the steering torque and the steering angle to a steering linkage mechanism, and the steering linkage mechanism correspondingly changes the direction of a vehicle body, so the steering device is an essential component for achieving vehicle steering. The steering gear shell is positioned outside the steering gear, supports and protects the steering gear inside, and meanwhile, prevents dust and impurities from the outside, and ensures that the steering gear works normally.

Because the steering gear has different types, the steering gear of different types has different shapes, therefore the steering gear casing also has different shapes correspondingly, one of them is by taking the cylinder of end and taking the straight cylinder that the cylinder axle center of end is the right angle setting to constitute, because this kind of steering gear casing shape is irregular, use die casting die to carry out the shaping usually, pour into the shaping intracavity of die casting die with aluminium liquid, the shape of shaping chamber and the shape phase-match of the shell of rotating type, therefore the shape of shaping chamber is irregular, the time that aluminium liquid fills into the different positions in the shaping intracavity is inconsistent, it is difficult to guarantee that the shaping product reaches the quality requirement such as wall thickness is even, the internal texture is compact, mechanical properties height, the processing effect is not good.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a steering gear shell die-casting mould that processing effect is good aims at solving and is difficult to guarantee that the shaping product reaches the problem that quality requirement, processing effect are not good.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a steering gear casing die-casting mould that processing effect is good, includes fixed die plate and movable mould board, the movable mould board in just right one side of fixed die plate is provided with the movable mould core, the fixed die plate be provided with movable mould core matched with cover half core works as the cover half core with when the movable mould core is laminated, the cover half core with form the die cavity between the movable mould core, still include a plurality of and become cinder ladle and exhaust system that the die cavity is linked together, the cinder ladle set up in the movable mould core with between the cover half core, exhaust system including set up in the cover half core with first exhaust flue on the lateral part that the movable mould core laminated, inlay and locate the first exhaust block of fixed die plate lateral part and inlay the second exhaust block of the lateral part of movable mould board, first exhaust block with second exhaust block can laminate and form the exhaust cavity, first exhaust flue include with a plurality of cinder ladle that is linked together are the first exhaust branch way of broken line type and with arrange The air chamber is connected with the first exhaust main channel of the barrel.

Through the technical scheme, when aluminium liquid pours into the shaping chamber, the air in the shaping intracavity is through a plurality of cinder ladle to rather than the first exhaust branch way of a plurality of that is linked together, the cinder ladle is linked together with first exhaust branch way, the gas pressure of reducible cinder ladle, can exert the effect of cinder ladle better, later from each gas collection to the first exhaust main road that is the first exhaust branch way of broken line type, the first exhaust branch way of broken line type has increased flow resistance, prevent that aluminium liquid from passing through, later get into the exhaust chamber (die casting die gating system's runner and exhaust chamber are located the relative both sides in shaping chamber, there are abundant exhaust time and sufficient exhaust efficiency this moment, reduce gas pocket and cold shut in the product as far as possible) and discharge. The exhaust system is reasonable in design and good in exhaust effect, gas retained in the forming cavity before die casting and gas generated during die casting can be exhausted out of the die in the aluminum liquid filling process, the phenomenon that the aluminum liquid is in contact with air to be oxidized is reduced, the filling speed of the aluminum liquid in the forming cavity is accelerated, the filling performance is good, the defect that air holes or insufficient filling occur in the formed steering gear shell is reduced, and the good processing effect of a formed product is guaranteed.

It should be understood that the die casting machine is a common prior art, the working principle and the working mode thereof are technical means in the field, and other arrangements of the die casting mold, such as a gating system, are designed to meet the processing requirements of the die casting mold, and are not described in detail herein.

The utility model discloses a further set up to: first exhaust groove has been seted up to first exhaust piece, second exhaust piece is provided with second exhaust arch, first exhaust groove and the bellied longitudinal section of second exhaust all are the corrugate, first exhaust groove with the bellied formation of second exhaust the exhaust chamber, the longitudinal section in exhaust chamber is the corrugate, first exhaust groove and the bellied notch width of second exhaust with first exhaust main road is close to the width of exhaust chamber one end is unanimous.

Through the technical scheme, the corrugated exhaust cavity is relatively zigzag, has high flow resistance and fluid cooling speed, can prevent molten aluminum with high density and viscosity from passing through and smoothly exhaust air, and realizes the exhaust function.

The utility model discloses a further set up to: the second exhaust block is provided with three first exhaust holes, the movable template is provided with three second exhaust holes communicated with the first exhaust holes, and the three first exhaust holes are communicated with the exhaust cavity.

Through the technical scheme, the air flowing to the exhaust cavity is timely discharged through the three first exhaust holes and the three second exhaust holes, so that the air discharging speed is increased, and the exhaust efficiency of an exhaust system is improved.

The utility model discloses a further set up to: the first exhaust block is provided with a third exhaust hole with an L-shaped longitudinal section, one end of the third exhaust hole is communicated with the exhaust cavity, the other end of the third exhaust hole can be communicated with an exhaust device, a port of one end of the third exhaust hole is positioned on one side, deviating from the fixed mold core, of the first exhaust block, and a port of the other end of the third exhaust hole is positioned on one side, attached to the second exhaust block, of the second exhaust block.

Through above-mentioned technical scheme, the longitudinal section of first exhaust hole is L shape, and the height that highly is higher than the exhaust chamber of the port that deviates from one side of deciding the mold core with first exhaust piece promptly is linked together has further prevented that aluminium liquid from passing through, and air density is little, can follow and be discharged in the third exhaust hole that is higher than the exhaust chamber height.

The utility model discloses a further set up to: first exhaust main road is radial, the width that first exhaust main road is close to exhaust chamber one end is greater than the width that exhaust chamber one end was kept away from to first exhaust main road, first exhaust branch road is close to the one end of cinder ladle is radial, first exhaust branch road is close to the width of cinder ladle one end is greater than first exhaust branch road is kept away from the width of cinder ladle one end.

Through above-mentioned technical scheme, gaseous from first exhaust branch way flow, the one end of first exhaust branch way is radial, accords with the flow principle of gas dynamics, and the middle part cross sectional area of first exhaust branch way is little than the tip, and gas flows because the area reduces when middle part, and its velocity of flow increase, later converges to being radial first exhaust main road, and its velocity of flow further increases. The first exhaust main channel and the first exhaust branch channel are provided with radial parts, so that the gas flow speed is increased, and the exhaust efficiency is accelerated.

The utility model discloses a further set up to: still include cooling system, cooling system include with what the fixed die plate links to each other runs through the fixed die core extends to first inlay the needle in the shaping intracavity and with what the movable die plate links to each other runs through the movable die core extends to the needle is inlayed to the second in the shaping intracavity, first inlay the needle with the needle is inlayed to the second inside has all seted up the cooling water course.

Through the technical scheme, through the cooling water course (the cooling water course has also been seted up to movable mould board and fixed die plate, the cooling water course of inlaying the inside setting of needle with first inlaying and second is linked together), inject the cooling water in the inside of first inlaying needle and second inlaying the needle, inlay the needle and cool off first inlaying needle and second, avoid in the forming process because first inlaying needle and second inlay the needle the high temperature and lead to the finished product to bond here and lead to the fact the product to lack the material or inlay the needle fracture and lead to the finished product shrinkage cavity to appear, the good result of processing of shaping product has been guaranteed.

The utility model discloses a further set up to: first exhaust piece is provided with the longitudinal section and is the first connecting groove of rectangle, be provided with on the fixed die plate with connecting groove matched with first connecting lug, second exhaust piece is provided with the longitudinal section and is the second connecting lug of rectangle, be provided with on the movable die plate with second connecting lug matched with second connecting groove, first connecting hole has all been seted up to movable die plate and fixed die plate, first exhaust piece with second exhaust piece seted up with the second connecting hole that first connecting hole position is relative still includes the connecting pin, the connecting pin inserts first connecting hole with the second connecting hole.

Through the technical scheme, the connecting pin makes first exhaust piece and fixed die plate, the second exhaust piece is connected with the movable mould board and is firm, the relative position that the cooperation of first connecting groove and first connecting lug made first exhaust piece and fixed die plate has fixed simultaneously, the cooperation of second connecting lug and second connecting groove makes the relative position of second exhaust piece and movable mould board fixed, thereby make first exhaust piece and second exhaust piece keep the laminating, first exhaust groove and the protruding exhaust chamber that forms of second exhaust, exert exhaust function more steadily.

The utility model discloses a further set up to: the turning part in the forming cavity is provided with an arc-shaped curved surface.

Through above-mentioned technical scheme, aluminium liquid pours into the shaping intracavity into, at shaping intracavity shaping, sets up the arc curved surface in shaping chamber turn department, can solve the deckle edge that the work piece adds the man-hour formation, avoids processing deckle edge's process, has further promoted the processing effect.

The utility model discloses a further set up to: compared with the prior art, the beneficial effects of the utility model reside in that:

the exhaust system has the advantages that the design is reasonable, the exhaust effect is good, gas retained in the forming cavity before die casting in the aluminum liquid filling process and gas generated in the die casting process can be exhausted out of the die, the aluminum liquid is reduced from being in contact with air to be oxidized, the filling speed of the aluminum liquid in the forming cavity is accelerated, the filling performance is good, the defect that air holes or insufficient filling occur in the formed steering gear shell is reduced, and the good processing effect of a formed product is guaranteed.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural view of an embodiment of a steering gear housing die-casting mold with good processing effect according to the present invention;

fig. 2 is a sectional view of an embodiment of a steering gear housing die-casting mold according to the present invention;

FIG. 3 is an enlarged view at A in FIG. 2;

fig. 4 is a schematic structural diagram of a movable mold block and a movable mold core in an embodiment of a steering gear housing die-casting mold with a good processing effect according to the present invention;

fig. 5 is an enlarged view at B in fig. 4.

In the figure, 1, a fixed template; 2. moving the template; 3. fixing a mold core; 4. a movable mold core; 5. a molding cavity; 6. slag ladle; 7. a first exhaust duct; 8. a first exhaust block; 9. a second exhaust block; 10. an exhaust chamber; 11. a first exhaust branch; 12. a first exhaust main path; 13. a first exhaust groove; 14. a second exhaust lobe; 15. a first exhaust port; 16. a second vent hole; 17. a third vent hole; 18. a first insert pin; 19. a second insert pin; 20. a first connection groove; 21. a first connection bump; 22. a second connection bump; 23. a second connecting groove; 24. a first connection hole; 25. a second connection hole; 26. a connecting pin; 27. and a cooling water channel.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings and specific embodiments. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

The utility model provides a steering gear casing die-casting mould that processing effect is good, as shown in figure 1 to figure 5, including fixed die plate 1 and movable die plate 2, movable die plate 2 is just being provided with movable die core 4 in one side of fixed die plate 1, fixed die plate 1 is provided with the fixed die core 3 that matches with movable die core 4, when fixed die core 3 with movable die core 4 pastes, form into die cavity 5 between fixed die core 3 and the movable die core 4, still include a plurality of cinder ladle 6 and the exhaust system that is linked together with into die cavity 5, cinder ladle 6 sets up in between movable die core 4 and fixed die core 3, the exhaust system includes first exhaust flue 7, the first exhaust piece 8 of set in the side of fixed die plate 1 and the second exhaust piece 9 of set in the side of movable die plate 2 on the side of set die core 3 that with movable die core 4 is laminated, the first exhaust block 8 and the second exhaust block 9 can be attached to form an exhaust cavity 10, and the first exhaust channel 7 comprises a plurality of first exhaust branch channels 11 which are of a broken line type and are communicated with the cinder ladle 6, and a first exhaust main channel 12 which is connected with the exhaust cavity 10 and is a barrel.

When molten aluminum is injected into the forming cavity 5, air in the forming cavity 5 flows through the slag ladle 6 to the first exhaust branch passages 11 communicated with the slag ladle 6, the slag ladle 6 is communicated with the first exhaust branch passages 11, the gas pressure of the slag ladle 6 can be reduced, the effect of the slag ladle 6 can be better exerted, then gas from each first exhaust branch passage 11 in a broken line type is converged to the first exhaust main passage 12, the flow resistance of the first exhaust branch passages 11 in the broken line type is increased, molten aluminum is prevented from passing through, and then the molten aluminum enters the exhaust cavity 10 (a pouring gate of a casting system of a die casting mould and the exhaust cavity 10 are positioned on two opposite sides of the forming cavity 5, sufficient exhaust time and sufficient exhaust efficiency are achieved at the moment, and air holes and cold partitions in products are reduced as much as possible). The exhaust system is reasonable in design and good in exhaust effect, gas retained in the forming cavity 5 before die casting and gas generated during die casting can be exhausted out of the die in the aluminum liquid filling process, the phenomenon that the aluminum liquid is in contact with air and oxidized is reduced, meanwhile, the filling speed of the aluminum liquid in the forming cavity 5 is accelerated, the forming performance is good, the defect that air holes or insufficient filling occur in a formed steering gear shell is reduced, and the good processing effect of a formed product is guaranteed.

It should be understood that the die casting machine is a common prior art, the working principle and the working mode thereof are technical means in the field, and other arrangements of the die casting mold, such as a gating system, are designed to meet the processing requirements of the die casting mold, and are not described in detail herein.

Referring to fig. 2 and 3, first exhaust groove 13 has been seted up to first exhaust block 8, second exhaust block 9 is provided with second exhaust arch 14, the longitudinal section of first exhaust groove 13 and second exhaust arch 14 all is the corrugate, first exhaust groove 13 with second exhaust arch 14 forms exhaust chamber 10, exhaust chamber 10's longitudinal section is the corrugate, first exhaust groove 13 and second exhaust arch 14's notch width with first exhaust main road 12 is close to the width of exhaust chamber 10 one end is unanimous, and corrugated exhaust chamber 10 is more tortuous, has very big flow resistance and fluid cooling rate, can prevent that the great aluminium liquid of density and viscosity from passing through and make the air discharge smoothly, has realized the exhaust function.

Referring to fig. 3, the second exhaust block 9 is provided with three first exhaust holes 15, the movable die plate 2 is provided with three second exhaust holes 16 communicated with the first exhaust holes 15, the three first exhaust holes 15 are connected with the exhaust cavity 10, and air flowing to the exhaust cavity 10 is timely discharged through the three first exhaust holes 15 and the three second exhaust holes 16, so that the air discharge speed is increased, and the exhaust efficiency of the exhaust system is improved.

Referring to fig. 3, the first exhaust block 8 is provided with a third exhaust hole 17 with an L-shaped longitudinal section, one end of the third exhaust hole 17 is communicated with the exhaust cavity 10, and the other end of the third exhaust hole can be communicated with an exhaust device, a port at one end of the third exhaust hole 17 is positioned at one side of the first exhaust block 8 departing from the fixed mold core 3, a port at the other end of the third exhaust hole is positioned at one side of the second exhaust block 9, and the longitudinal section of the first exhaust hole 15 is L-shaped, i.e., the height of the port communicated with one side of the first exhaust block 8 departing from the fixed mold core 3 is higher than the height of the exhaust cavity 10, so that the aluminum liquid is further prevented from passing through, and the air density is small, and the aluminum liquid can be discharged from the third exhaust hole 17 higher than the height of the exhaust cavity 10.

Referring to fig. 5, first exhaust main road 12 is radial, first exhaust main road 12 is close to the width of exhaust chamber 10 one end and is greater than first exhaust main road 12 keeps away from the width of exhaust chamber 10 one end, first exhaust branch road 11 is close to the one end of cinder ladle 6 is radial, first exhaust branch road 11 is close to the width of cinder ladle 6 one end is greater than first exhaust branch road 11 keeps away from the width of cinder ladle 6 one end, and gas flows from first exhaust branch road 11, and the one end of first exhaust branch road 11 is radial, accords with aerodynamic's flow principle, and the middle part cross sectional area of first exhaust branch road 11 is less than the tip, and gas flows to the middle part time owing to the area reduction, and its velocity of flow increases, later to being radial first exhaust main road 12, and its velocity of flow further increases. Wherein, the first exhaust main duct 12 and the first exhaust branch duct 11 have a radial portion to increase the flow rate of gas, thereby accelerating the exhaust efficiency.

Referring to fig. 2, the molding machine further comprises a cooling system, the cooling system comprises a first insert pin 18 connected with the fixed die plate 1 and penetrating through the fixed die core 3 and extending into the molding cavity 5, and a second insert pin 19 connected with the movable die plate 2 and penetrating through the movable die core 4 and extending into the molding cavity 5, cooling water channels are respectively formed in the first insert pin 18 and the second insert pin 19, and cooling water is introduced into the first insert pin 18 and the second insert pin 19 through the cooling water channels (the movable die plate 2 and the fixed die plate 1 are also provided with the cooling water channels and communicated with the cooling water channels formed in the first insert pin 18 and the second insert pin 19), so as to cool the first insert pin 18 and the second insert pin 19, thereby avoiding that the finished product is adhered due to excessive high temperature of the first insert pin 18 and the second insert pin 19 in the molding process and the product is lack of material or the insert pin is broken to cause shrinkage cavity of the finished product, and the good processing effect of the formed product is ensured.

Refer to fig. 3 first exhaust block 8 is provided with longitudinal section and is the first connecting groove 20 of rectangle, be provided with on the fixed die plate 1 with connecting groove matched with first connecting lug 21, second exhaust block 9 is provided with longitudinal section and is the second connecting lug 22 of rectangle, be provided with on the movable die plate 2 with second connecting lug 22 matched with second connecting groove 23, first connecting hole 24 has all been seted up to movable die plate 2 and fixed die plate 1, first exhaust block 8 with second exhaust block 9 set up with first connecting hole 24 relative second connecting hole 25 in position still includes connecting pin 26, connecting pin 26 inserts first connecting hole 24 with second connecting hole 25, connecting pin 26 make first exhaust block 8 and fixed die plate 1, second exhaust block 9 be connected with movable die plate 2 firmly, and the cooperation of first connecting groove 20 and first connecting lug 21 has made the relative position of first exhaust block 8 and fixed die plate 1 go on And the relative positions of the second exhaust block 9 and the movable mould plate 2 are fixed by the matching of the second connecting convex blocks 22 and the second connecting concave grooves 23, so that the first exhaust block 8 and the second exhaust block 9 are kept jointed, and the first exhaust grooves 13 and the second exhaust bulges 14 form the exhaust cavity 10, thereby playing the exhaust function more stably.

Referring to fig. 4, the turning position in the forming cavity 5 is set to be an arc-shaped curved surface, aluminum liquid is injected into the forming cavity 5 to be formed in the forming cavity 5, and the arc-shaped curved surface is arranged at the turning position of the forming cavity 5, so that burrs formed during workpiece processing can be avoided, the processing procedure of the burrs is avoided, and the processing effect is further improved.

The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modification and modification made by those skilled in the art according to the above disclosure are all within the scope of the claims.

Claims (8)

1. The utility model provides a steering gear casing die-casting mould that processing effect is good, includes fixed die plate (1) and movable mould board (2), movable mould board (2) just right to one side of fixed die plate (1) is provided with movable mould core (4), fixed die plate (1) be provided with movable mould core (4) matched with decide mould core (3), work as decide mould core (3) with when movable mould core (4) laminate mutually, decide mould core (3) with form molding cavity (5), its characterized in that between movable mould core (4): still include cinder ladle (6) and exhaust system that a plurality of and shaping chamber (5) are linked together, cinder ladle (6) set up in move mold core (4) with between deciding mold core (3), exhaust system including set up in decide mold core (3) with move first exhaust way (7) on the lateral part that mold core (4) laminated mutually, inlay and locate the first exhaust block (8) of fixed die plate (1) lateral part and inlay and locate second exhaust block (9) of the lateral part of moving die plate (2), first exhaust block (8) with second exhaust block (9) can laminate and form exhaust chamber (10), first exhaust way (7) include with a plurality of that cinder ladle (6) are linked together are first exhaust branch road (11) of broken line type and with first exhaust main road (12) of the bucket that exhaust chamber (10) link to each other.

2. The steering gear housing die-casting mold with good processing effect according to claim 1, wherein: first exhaust groove (13) have been seted up in first exhaust block (8), second exhaust block (9) are provided with second exhaust arch (14), the longitudinal section of first exhaust groove (13) and second exhaust arch (14) all is the corrugate, first exhaust groove (13) with second exhaust arch (14) form exhaust chamber (10), the longitudinal section of exhaust chamber (10) is the corrugate, the notch width of first exhaust groove (13) and second exhaust arch (14) with first exhaust main road (12) are close to the width of exhaust chamber (10) one end is unanimous mutually.

3. The steering gear housing die-casting mold with good processing effect according to claim 1, wherein: the second exhaust block (9) is provided with three first exhaust holes (15), the movable template (2) is provided with three second exhaust holes (16) communicated with the first exhaust holes (15), and the three first exhaust holes (15) are communicated with the exhaust cavity (10).

4. The steering gear housing die-casting mold with good processing effect according to claim 1, wherein: third exhaust hole (17) that longitudinal section is L shape are seted up in first exhaust piece (8), third exhaust hole (17) one end with exhaust chamber (10) are linked together, and another can be linked together with exhaust apparatus, the port of the one end in third exhaust hole (17) is located first exhaust piece (8) deviate from decide one side of mold core (3), the port of the other end be located with one side that second exhaust piece (9) laminated mutually.

5. The steering gear housing die-casting mold with good processing effect according to claim 1, wherein: first exhaust main road (12) are radial, first exhaust main road (12) are close to the width of exhaust chamber (10) one end and are greater than the width of exhaust chamber (10) one end is kept away from in first exhaust main road (12), first exhaust branch road (11) are close to the one end of cinder ladle (6) is radial, first exhaust branch road (11) are close to the width of cinder ladle (6) one end is greater than first exhaust branch road (11) are kept away from the width of cinder ladle (6) one end.

6. The steering gear housing die-casting mold with good processing effect according to claim 1, wherein: still include cooling system, cooling system include with what fixed die plate (1) link to each other runs through fixed die core (3) and extend to first inlay needle (18) in shaping chamber (5) and with what movable die plate (2) link to each other runs through movable die core (4) and extend to needle (19) are inlayed to the second in shaping chamber (5), first inlay needle (18) with the inside of needle (19) is inlayed to the second has all seted up the cooling water course.

7. The steering gear housing die-casting mold with good processing effect according to claim 1, wherein: the first exhaust block (8) is provided with a first connecting groove (20) with a rectangular longitudinal section, the fixed die plate (1) is provided with a first connecting convex block (21) matched with the first connecting groove (20), the second exhaust block (9) is provided with a second connecting convex block (22) with a rectangular longitudinal section, a second connecting groove (23) matched with the second connecting lug (22) is arranged on the movable template (2), the movable template (2) and the fixed template (1) are both provided with three first connecting holes (24), the first exhaust block (8) and the second exhaust block (9) are provided with three second connecting holes (25) opposite to the first connecting holes (24) and three connecting pins (26), the connection pin (26) is inserted into the first connection hole (24) and the second connection hole (25).

8. The steering gear housing die-casting mold with good processing effect according to claim 1, wherein: the inner turning position of the molding cavity (5) is an arc-shaped curved surface.

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