High-precision automobile power steering housing precision die-casting mold

Abstract

The application discloses to the technical field of automobile metal die casting, in particular to a high-precision automobile power steering housing precision die casting die, which comprises a movable die mounting seat, a constraint holding assembly and a guide processing assembly, one side of the movable die mounting seat is provided with an assembly area, the assembly area is provided with a die casting movable die through an assembly adjusting assembly, the assembly adjusting assembly comprises an assembly seat and two adjusting frames, the adjusting frames each comprise two equal-size adhering plates, the die casting movable die and the movable die mounting seat are quickly assembled through the assembly seat, the late replacement and maintenance convenience of the automobile power steering housing die casting die is realized, then the position relationship of the die casting movable die can be quickly adjusted through the two adjusting frames of the assembly adjusting assembly, timely adjustment can be carried out when the die casting movable die is deviated from the die casting machine fixed die, the high precision of die casting forming is improved, and the die closing of the die casting movable die is smooth and stable under the linkage cooperation of the guide processing assembly, the precision is reliable, and the operation is convenient and labor-saving.

Description

Technical Field

[0001] This invention relates to the field of automotive metal die casting technology, specifically to a high-precision die casting mold for automotive power steering housings. Background Technology

[0002] The power steering housing is an outer shell component in the power steering system of an automobile, used to house and protect internal components, and to bear the functions of force transmission, distribution, and hydraulic chamber formation. It is usually made of materials such as cast iron and aluminum alloy, and has a certain strength, rigidity, and sealing performance. It is an important component to ensure the normal operation of the power steering system. The power steering housing is mainly produced by die casting using die casting molds.

[0003] The existing utility model with publication number CN216460771U discloses an aluminum cold die-casting machine for forming automobile engine housings. By setting two sets of smoke removal devices, the smoke collection hood of the smoke removal device can collect waste smoke from both sides of the mold when the mold is opened. The above solution achieves convenient use of the smoke removal equipment through the cooperation between various mechanisms. However, since the moving mold of the die-casting machine needs to be hydraulically pushed to reciprocate along the mold closing guide post during use, in the die-casting of automobile power steering housings, mold closing deviations are prone to occur between the moving mold and the fixed mold after long-term use. At this time, it is not convenient to adjust the relative position of the two. Moreover, when the moving mold is disassembled for maintenance, it is often necessary to disassemble the mold closing guide post simultaneously, which is time-consuming, labor-intensive, and inconvenient to use. Summary of the Invention

[0004] The purpose of this invention is to provide a high-precision die-casting mold for automotive power steering housings to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-precision die-casting mold for automotive power steering housings, comprising:

[0006] A moving mold mounting base has an assembly area on one side. The assembly area is equipped with a die-casting moving mold through an assembly adjustment component. The assembly adjustment component includes an assembly base and two adjustment frames, each of which includes two mating plates of equal size.

[0007] A constraint holding assembly is provided on three sides of the moving mold mounting base. The constraint holding assembly includes three auxiliary screws, one end of each of the three auxiliary screws abutting against a bonding plate of equal size.

[0008] The guiding processing assembly includes a mold closing guide sleeve symmetrically arranged on four sides of the moving mold mounting base. The guiding processing assembly includes an oil storage tank and four oil delivery pipes, with the two ends of the four oil delivery pipes respectively connected to the oil storage tank and the four mold closing guide sleeves.

[0009] Preferably, the assembly base is horizontally positioned at the center of the assembly area, and a combination slot is provided on one side of the die-casting moving mold. The assembly base is inserted into the combination slot. A linkage rod is fixedly connected between the two equal-sized fitting plates of the adjustment frame. The two equal-sized fitting plates of the adjustment frame are located on opposite sides of the assembly base. The linkage rod is movably inserted through the assembly base, and the linkage rods of the two adjustment frames are staggered.

[0010] Preferably, one side of each of the four equal-sized bonding plates is in contact with the inner wall of the combination slot, the length of the equal-sized bonding plate is less than the length of the inner wall of the combination slot, and the length of the linkage rod is greater than the width of the assembly base.

[0011] Preferably, one of the equal-sized bonding plates of the two adjustment frames is provided with an adjustment support rod on one side, and the other equal-sized bonding plate of the adjustment frame is provided with a guide block on one side. The guide block is movably inserted into the side wall of the assembly base. An adjustment cylinder groove is opened on the side of the assembly base near the adjustment support rod, and the adjustment support rod is inserted into the adjustment cylinder groove through a sealing ring and is provided with an adjustment piston.

[0012] Preferably, valve slots are provided on both sides of the assembly base. One valve slot is connected to two adjusting cylinder slots and has a first pair of interfaces. The other valve slot is connected to two adjusting cylinder slots and has a second pair of interfaces. The second pair of interfaces and the first pair of interfaces are located on both sides of the adjusting cylinder slot, and the adjusting piston is located between the first pair of interfaces and the second pair of interfaces.

[0013] Preferably, a first switching valve and a second switching valve are respectively provided in the two valve slots. Both the first switching valve and the second switching valve have an L-shaped transition groove through them. One end of the L-shaped transition groove of the first switching valve and the second switching valve is respectively set to correspond to the first pair of interfaces and the second pair of interfaces.

[0014] Preferably, the die-casting moving mold has auxiliary screw grooves on three sides of the connected combination slot. One end of each of the three auxiliary screws is threaded into the auxiliary screw groove. The three auxiliary screws are inserted into the auxiliary screw grooves and pass through the auxiliary screw grooves respectively, and abut against one side of the three equal-sized fitting plates. The moving mold mounting base is provided with a strip groove on one side of the auxiliary screws. The auxiliary screws are all set through the strip grooves by a washer.

[0015] Preferably, the two valve slots in the assembly base are respectively provided with access slots through the moving mold mounting base. The two access slots are respectively connected to the L-shaped transition slots of the first switching valve and the second switching valve. The moving mold mounting base is provided with a first adjustment interface and a second adjustment interface on one side of the two access slots.

[0016] Preferably, the oil storage tank is located above the moving mold mounting base near the first adjustment interface. A first pair of connecting pipes is vertically installed inside the oil storage tank, with the lower ends of the first pair of connecting pipes extending out of the oil storage tank. A second pair of connecting pipes is vertically connected to the upper end of the first adjustment interface. The upper end of the second pair of connecting pipes is sealed and inserted into the first pair of connecting pipes. A synchronous piston rod is vertically and movably inserted into the second pair of connecting pipes through a guide partition. A first piston and a second piston are respectively installed at the upper and lower ends of the second piston. A return spring is sleeved between the guide partition and the second piston on the synchronous piston rod.

[0017] Preferably, each of the four mold closing guide sleeves is provided with sliding balls, and each of the four oil supply pipes is provided with a one-way valve at one end connected to the oil storage tank. The oil supply pipe is connected to the oil storage tank at the lower side of the oil storage tank, and the upper end of the first pair of pipes is located above the oil level in the oil storage tank. A mold closing control connecting frame is provided on the side of the moving mold mounting base away from the die-casting moving mold.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] This device allows for the rapid assembly of the die-casting moving mold and the moving mold mounting base via an assembly base, facilitating the later replacement and maintenance of the die-casting mold for automotive power steering housings. Then, through the two adjustment brackets of the assembly and adjustment components, the positional relationship of the die-casting moving mold can be quickly adjusted. If the die-casting moving mold deviates from the die-casting machine's fixed mold, timely adjustments can be made, improving the high precision of die-casting. Simultaneously, with the coordinated action of the guiding components, the die-casting moving mold can close smoothly and stably, ensuring reliable precision and convenient operation. Attached Figure Description

[0020] Figure 1 This is a first-view schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a second-view schematic diagram of the structure of the present invention;

[0022] Figure 3 For the present invention Figure 2 Schematic diagram of part A;

[0023] Figure 4 This is a side sectional view of the connection between the assembly base and the die-casting moving mold of the present invention;

[0024] Figure 5 For the present invention Figure 4 Schematic diagram of part B;

[0025] Figure 6 For the present invention Figure 5 Schematic diagram of part C;

[0026] Figure 7 This is a schematic diagram of the oil storage tank and the first adjustment interface of the present invention.

[0027] Figure 8 For the present invention Figure 7 Schematic diagram of part D;

[0028] Figure 9 This is a schematic diagram showing the structural breakdown of the present invention;

[0029] Figure 10 This is a schematic diagram of the two adjustment bracket structures of the present invention.

[0030] In the diagram: 1. Moving mold mounting base; 2. Mold closing guide sleeve; 3. Assembly base; 4. Die-casting moving mold; 5. Combination slot; 6. Equal-size fitting plate; 7. Linkage rod; 8. Adjustment support rod; 9. Adjustment cylinder groove; 10. Adjustment piston; 11. First switching valve; 12. Second switching valve; 13. First coupling interface; 14. Second coupling interface; 15. Auxiliary screw groove; 16. Auxiliary screw; 17. Strip slide; 18. First adjustment interface; 19. Second adjustment interface; 20. Oil storage tank; 21. First coupling pipe; 22. Second coupling pipe; 23. Synchronous piston rod; 24. First piston; 25. Second piston; 26. Return spring; 27. Oil supply pipe; 28. One-way valve; 29. ​​Mold closing control connecting frame; 30. Guide block. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see the appendix Figure 1-10 This application provides the following technical solutions.

[0033] Example 1: A high-precision die-casting mold for automotive power steering housing, comprising a moving mold mounting base 1, an assembly area on one side of the moving mold mounting base 1, and a die-casting moving mold 4 disposed within the assembly area via an assembly adjustment assembly. The assembly adjustment assembly includes an assembly base 3 and two adjustment frames, each of which includes two equally sized fitting plates 6. The assembly base 3 is horizontally positioned at the center of the assembly area. A combination slot 5 is provided on one side of the die-casting moving mold 4, into which the assembly base 3 is inserted. A linkage rod 7 is fixedly connected between the two equally sized fitting plates 6 of the adjustment frame. The two equally sized fitting plates 6 of the adjustment frame are located on opposite sides of the assembly base 3. The linkage rod 7 is movably inserted through the assembly base 3, and the linkage rods 7 of the two adjustment frames are staggered. One side of each of the four equally sized fitting plates 6 contacts the inner wall of the combination slot 5. The length of the equally sized fitting plate 6 is less than the length of the inner wall of the combination slot 5, and the length of the linkage rod 7 is greater than the width of the assembly base 3. One side of each of the equally sized fitting plates 6 of the two adjustment frames is provided with an adjustment rod. The entire support rod 8 and the other equally sized fitting plate 6 of the adjustment frame are each provided with a guide block 30. The guide block 30 is movably inserted into the side wall of the assembly base 3. An adjustment cylinder groove 9 is opened on the side of the assembly base 3 near the adjustment support rod 8. The adjustment support rod 8 is inserted into the adjustment cylinder groove 9 through a sealing ring and is provided with an adjustment piston 10. The moving mold mounting base 1 is slidably connected to the four mold closing guide pillars of the die casting machine through the mold closing guide sleeve 2. The die casting moving mold 4 is installed on the moving mold mounting base 1 through the assembly base 3, which can be quickly disassembled and adjusted. On one side, when the die-casting moving mold 4 is assembled with the moving mold mounting base 1, the die-casting moving mold 4 is hoisted to the assembly base 3 position by the hoisting equipment, and then pushed horizontally into the assembly area of ​​the moving mold mounting base 1. The assembly base 3 and four equal-sized fitting plates 6 are inserted into the combination slot 5 of the die-casting moving mold 4. The four equal-sized fitting plates 6 are respectively fitted with the four side walls inside the combination slot 5. At this time, the assembly base 3 and the equal-sized fitting plates 6 provide basic support for the die-casting moving mold 4. A die-casting mold mounting cavity for the automotive power steering housing is opened on one side of the assembly base 3.

[0034] Valve slots are provided on both sides of the assembly base 3. One valve slot is connected to two adjusting cylinder slots 9 and has a first pair of interfaces 13. The other valve slot is connected to two adjusting cylinder slots 9 and has a second pair of interfaces 14. The second pair of interfaces 14 and the first pair of interfaces 13 are located on opposite sides of the adjusting cylinder slots 9, and the adjusting piston 10 is located between the first pair of interfaces 13 and the second pair of interfaces 14. A first switching valve 11 and a second switching valve 12 are provided in the two valve slots, respectively. Both the first switching valve 11 and the second switching valve 12 have L-shaped transition grooves. The first switching valve 11... The L-shaped transition groove of the second switching valve 12 is respectively set to correspond to the first pair of interfaces 13 and the second pair of interfaces 14. The hydraulic oil or high-pressure gas sent by the first switching valve 11 and the second switching valve 12 can push the two adjusting support rods 8 separately, so that the two adjusting frames with two equally sized fitting plates 6 can slide relative to each other. At this time, the movement of the adjusting frame can drive the die-casting moving mold 4 to be adjusted up, down and left and right in the assembly area of ​​the moving mold mounting seat 1, so as to realize the relative position relationship between the die-casting moving mold 4 and the die-casting machine fixed mold, and realize the high-precision die-casting processing in the later stage.

[0035] A constraint-holding assembly is installed to maintain the connection between the die-casting moving mold 4 and the assembly base 3. The constraint-holding assembly is located on three sides of the moving mold mounting base 1 and includes three auxiliary screws 16. One end of each of the three auxiliary screws 16 abuts against a uniformly sized fitting plate 6. The die-casting moving mold 4 has auxiliary screw grooves 15 on three sides connected to the combination slot 5. One end of each of the three auxiliary screws 16 is threaded into the auxiliary screw groove 15. The ends of the three auxiliary screws 16 inserted into the auxiliary screw grooves 15 pass through the auxiliary screw grooves 15 and abut against one side of each of the three uniformly sized fitting plates 6. Each side of the moving mold mounting base 1 located on the auxiliary screws 16 has a strip-shaped groove 1. 7. The auxiliary screws 16 are all set through the strip grooves 17 by shims. When the die-casting moving mold 4 is adjusted up, down, left and right, one end of the auxiliary screw 16 is not in contact with the equal-sized fitting plate 6. When the die-casting moving mold 4 is adjusted, the three auxiliary screws 16 can adapt to the movement in the strip grooves 17. During this period, the die-casting moving mold 4 cannot be separated from the assembly seat 3 under the constraint of the three auxiliary screws 16 and the strip grooves 17. Then, after the auxiliary screws 16 are behind the equal-sized fitting plate 6, the connection between the auxiliary die-casting moving mold 4 and the assembly seat 3 is stable. The shim is set between the auxiliary screws 16 and the moving mold mounting seat 1 so that the positional relationship between the auxiliary screws 16 and the moving mold mounting seat 1 is also stable.

[0036] Example 2: Based on Example 1, a guiding component is provided to prevent the die-casting moving mold 4 from becoming unstable during mold closing and sliding. The moving mold mounting base 1 is symmetrically provided with mold closing guide sleeves 2 on its four sides. The guiding component includes an oil storage tank 20 and four oil delivery pipes 27. The two ends of the four oil delivery pipes 27 are respectively connected to the oil storage tank 20 and the four mold closing guide sleeves 2. The two valve slots in the assembly base 3 are respectively provided through the moving mold mounting base 1 and have access slots. The two access slots are respectively connected to the L-shaped transition slots of the first switching valve 11 and the second switching valve 12. The moving mold mounting base 1 is provided with a first adjustment interface 18 and a second adjustment interface 19 on one side of the two access slots. The first adjustment interface 18 and the second adjustment interface 19 respectively send the power source supporting the die-casting moving mold 4 or adjusting the die-casting moving mold 4 to the first switching valve 11 and the second switching valve 12.

[0037] An oil storage tank 20 is located above the moving mold mounting base 1 near the first adjustment interface 18. A first pair of connecting pipes 21 are vertically installed inside the oil storage tank 20, with the lower ends of the first pair of connecting pipes 21 extending out of the oil storage tank 20. A second pair of connecting pipes 22 is vertically connected to the upper end of the first adjustment interface 18. The upper end of the second pair of connecting pipes 22 is sealed and inserted into the first pair of connecting pipes 21. A synchronous piston rod 23 is vertically and movably inserted into the second pair of connecting pipes 22 via a guide partition. A first piston 24 and a second piston 25 are respectively located at the upper and lower ends of the second piston 25. A return spring 26 is sleeved between the rod 23 and the guide partition and the second piston 25. Each of the four mold closing guide sleeves 2 has a sliding ball. Each of the four oil supply pipes 27 connected to the oil storage tank 20 has a one-way valve 28 at one end. The oil supply pipe 27 is connected to the oil storage tank 20 at the lower side of the tank. The upper end of the first connecting pipe 21 is above the oil level in the oil storage tank 20. A mold closing control connecting frame 29 is provided on the side of the moving mold mounting base 1 away from the die-casting moving mold 4. After the die-casting moving mold 4 is adjusted, a mold closing control connecting frame 29 is provided to maintain the stable position of the die-casting moving mold 4. At this time, the first switching valve 11 and the second switching valve 12 need to control the L-shaped transition groove to be misaligned with the first pair of interfaces 13 and the second pair of interfaces 14. When hydraulic oil continues to be supplied into the first adjustment interface 18, the hydraulic oil will not affect the stability of the die-casting moving mold 4. However, the hydraulic oil will enter the second pair of connecting pipes 22 and push the second piston 25 and the first piston 24 to rise. At this time, the air above the first pair of connecting pipes 21 compresses the space inside the oil storage tank 20. The lubricating oil in the oil storage tank 20 is pushed by the four one-way valves 28, and the lubricating oil is lifted or dripped into the four mold closing guide sleeves 2 respectively. By repeatedly starting and stopping to control the supply of hydraulic oil to the first adjustment interface 18, active control lubrication of the sliding ball can be achieved. The one-way valve 28 is a common liquid spring self-sealing one-way valve.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-precision die-casting mold for automotive power steering housing, characterized in that, include: The moving mold mounting base (1) has an assembly area on one side. The assembly area is equipped with a die-casting moving mold (4) through an assembly adjustment component. The assembly adjustment component includes an assembly base (3) and two adjustment frames. Each adjustment frame includes two equal-sized fitting plates (6). The constraint holding assembly is located on three sides of the moving mold mounting base (1). The constraint holding assembly includes three auxiliary screws (16), one end of each of the three auxiliary screws (16) abutting against the same size bonding plate (6); The guiding processing component includes a mold closing guide sleeve (2) symmetrically provided on the four sides of the moving mold mounting base (1). The guiding processing component includes an oil storage tank (20) and four oil delivery pipes (27). The two ends of the four oil delivery pipes (27) are respectively connected to the oil storage tank (20) and the four mold closing guide sleeves (2). The assembly base (3) is horizontally positioned in the center of the assembly area. A combination slot (5) is provided on one side of the die-casting moving mold (4). The assembly base (3) is inserted into the combination slot (5). A linkage rod (7) is fixedly connected between the two equal-sized fitting plates (6) of the adjustment frame. The two equal-sized fitting plates (6) of the adjustment frame are located on opposite sides of the assembly base (3). The linkage rod (7) is movably inserted through the assembly base (3), and the linkage rods (7) of the two adjustment frames are staggered. One side of each of the four equal-sized bonding plates (6) is in contact with the inner wall of the combination slot (5). The length of the equal-sized bonding plate (6) is less than the length of the inner wall of the combination slot (5), and the length of the linkage rod (7) is greater than the width of the assembly base (3).

2. The high-precision automotive power steering housing precision die-casting mold according to claim 1, characterized in that: One of the two adjustment frames has an adjustment support rod (8) on one side of the equal-sized bonding plate (6), and the other equal-sized bonding plate (6) has a guide block (30) on one side. The guide block (30) is movably inserted into the side wall of the assembly base (3). An adjustment cylinder groove (9) is opened on the side of the assembly base (3) near the adjustment support rod (8), and the adjustment support rod (8) is inserted into the adjustment cylinder groove (9) through a sealing ring and is provided with an adjustment piston (10).

3. The high-precision automotive power steering housing precision die-casting mold according to claim 2, characterized in that: Valve slots are provided on both sides of the assembly base (3). One valve slot is connected to two adjustment cylinder slots (9) and has a first pair of interfaces (13). The other valve slot is connected to two adjustment cylinder slots (9) and has a second pair of interfaces (14). The second pair of interfaces (14) and the first pair of interfaces (13) are located on both sides of the adjustment cylinder slot (9), and the adjustment piston (10) is located between the first pair of interfaces (13) and the second pair of interfaces (14).

4. The high-precision automotive power steering housing precision die-casting mold according to claim 3, characterized in that: The two valve slots are respectively provided with a first switching valve (11) and a second switching valve (12). Both the first switching valve (11) and the second switching valve (12) are provided with L-shaped transition slots. One end of the L-shaped transition slot of the first switching valve (11) and the second switching valve (12) is respectively set to correspond to the first pair of interfaces (13) and the second pair of interfaces (14).

5. The high-precision automotive power steering housing precision die-casting mold according to claim 4, characterized in that: The die-casting moving mold (4) has auxiliary screw grooves (15) on three sides connected to the combination slot (5). One end of each of the three auxiliary screws (16) is threaded into the auxiliary screw groove (15). The three auxiliary screws (16) inserted into the auxiliary screw groove (15) pass through the auxiliary screw groove (15) and abut against one side of the three equal-sized fitting plates (6). The moving mold mounting base (1) is located on one side of the auxiliary screws (16) and has a strip groove (17). The auxiliary screws (16) are all set through the strip groove (17) by a gasket.

6. The high-precision automotive power steering housing precision die-casting mold according to claim 5, characterized in that: The two valve slots in the assembly base (3) pass through the moving mold mounting base (1) and are provided with access slots. The two access slots are connected to the L-shaped transition slots of the first switching valve (11) and the second switching valve (12) respectively. The moving mold mounting base (1) is provided with a first adjustment interface (18) and a second adjustment interface (19) on one side of the two access slots respectively.

7. The high-precision automotive power steering housing precision die-casting mold according to claim 6, characterized in that: The oil storage tank (20) is located above the moving mold mounting base (1) near the first adjustment interface (18). The oil storage tank (20) is vertically provided with a first pair of connecting pipes (21). The lower end of the first pair of connecting pipes (21) extends out of the oil storage tank (20). The upper end of the first adjustment interface (18) is vertically connected to a second pair of connecting pipes (22). The upper end of the second pair of connecting pipes (22) is sealed and inserted into the first pair of connecting pipes (21). The second pair of connecting pipes (22) is vertically and movably inserted into a synchronous piston rod (23) through a guide partition. The upper and lower ends of the second piston (25) are respectively provided with a first piston (24) and a second piston (25). The synchronous piston rod (23) is located between the guide partition and the second piston (25) and is sleeved with a return spring (26).

8. The high-precision automotive power steering housing precision die-casting mold according to claim 7, characterized in that: Each of the four mold closing guide sleeves (2) is equipped with a sliding ball, and each of the four oil supply pipes (27) is equipped with a one-way valve (28) at one end connected to the oil storage tank (20). The oil supply pipe (27) is connected to the oil storage tank (20) at the lower side of the oil storage tank (20). The upper end of the first pair of pipes (21) is located above the oil surface in the oil storage tank (20). The moving mold mounting base (1) is equipped with a mold closing control connecting frame (29) on the side away from the die casting moving mold (4).

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