CN216065479U

CN216065479U - Differential pressure casting die for commercial wheel hub

Info

Publication number: CN216065479U
Application number: CN202122634454.2U
Authority: CN
Inventors: 张建良; 罗惠敏; 王焱江; 王小彬; 范桂山; 朱大智; 张少文
Original assignee: Baoding Lizhong Wheel Manufacturing Co ltd
Current assignee: Baoding Lizhong Wheel Manufacturing Co ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-03-18
Anticipated expiration: 2031-10-29

Abstract

The utility model provides a differential pressure casting die for a commercial wheel hub, which belongs to the technical field of differential pressure dies and comprises the following steps: the water collection block includes: an inner water collection block and an outer water collection block; the inner water collecting block and the outer water collecting block are respectively positioned at the inner side and the outer side of the upper differential pressure tank, a first flowing water channel and a second flowing water channel are respectively arranged inside the inner water collecting block and the outer water collecting block, and a third flowing water channel communicated with the first flowing water channel and the second flowing water channel is correspondingly arranged inside the upper template. The utility model provides a commercial wheel hub differential pressure casting mould, the piece that catchments divide into interior piece and the piece that catchments of outer catchments, and interior piece and the piece that catchments of outer catchments are installed respectively in last differential pressure jar inside and outside both sides, and coolant loops through first flowing water passageway, third flowing water passageway and second flowing water passageway, because third flowing water passageway sets up the inside at the cope match-plate pattern, so need not to set up the through-hole that is used for the pipeline to pass on last differential pressure jar to the sealed effect of pressurize of last differential pressure jar has been promoted.

Description

Differential pressure casting die for commercial wheel hub

Technical Field

The utility model belongs to the technical field of differential pressure dies, and particularly relates to a differential pressure casting die for a commercial wheel hub.

Background

At present, light and strong vehicles are developing, and as important safety parts of automobiles, aluminum alloy hubs are increasingly widely used in the automobile field. The manufacturing method of the aluminum alloy wheel hub comprises forging, differential pressure casting and the like, and the differential pressure casting die has the advantage of low production cost compared with a forging die, so that the differential pressure casting die is more widely applied to the field of aluminum alloy wheel hub production.

In order to realize the control of the cooling effect of the casting in the differential pressure casting die, a water collecting block is arranged on an upper die plate of the differential pressure casting die, a water flowing channel is arranged on the water collecting block, the two ends of the water flowing channel are respectively communicated with a water delivery device and a cooling water channel on an upper die core through pipelines, and a water inlet pipe and a water outlet pipe are arranged at the two ends of the water flowing channel of the water collecting block, so that a circulating water path is formed.

In order to improve the sealing performance of the differential pressure die and ensure the pressure intensity of the differential pressure die during working, an upper differential pressure tank and a lower differential pressure tank are respectively arranged on the upper template and the lower template, and are respectively sleeved on the outer sides of the upper die core and the lower die core and buckled together for pressure maintaining and sealing of the upper die core and the lower die core.

The current water collection block is installed in the outside of the upper differential pressure tank, and a through hole for a pipeline to pass through is formed in the upper differential pressure tank, so that the pressure maintaining sealing effect of the upper differential pressure tank is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a differential pressure casting die for a commercial wheel hub, and aims to solve the problem that the pressure maintaining and sealing effect of an upper differential pressure tank is poor in the existing differential pressure die.

In order to achieve the purpose, the utility model adopts the technical scheme that: there is provided a commercial wheel hub differential pressure casting mold comprising: cope match-plate pattern, lower bolster, go up the mold core, lower mold core, last differential pressure jar, lower differential pressure jar and water collection piece, go up the mold core with it installs to go up the differential pressure jar on the cope match-plate pattern, down the mold core with down the differential pressure jar is installed on the lower bolster, go up the differential pressure jar with down the differential pressure jar suit respectively the go up the mold core with the outside of lower mold core, water collection piece fixed mounting be in on the cope match-plate pattern, its characterized in that, the water collection piece includes: an inner water collection block and an outer water collection block; the inner water collecting block and the outer water collecting block are respectively positioned on the inner side and the outer side of the upper differential pressure tank, a first flowing water channel and a second flowing water channel are respectively arranged in the inner water collecting block and the outer water collecting block, and a third flowing water channel communicated with the first flowing water channel and the second flowing water channel is correspondingly arranged in the upper template.

In one possible implementation manner, the third flowing water channel comprises a first flowing water hole, a second flowing water hole and a third flowing water hole; the first flow hole and the second flow hole are formed in the bottom surface of the upper template, the third flow hole is formed in the outer side wall of the upper template, the first flow hole is communicated with the third flow hole and the first flow channel, and the second flow hole is communicated with the third flow hole and the second flow channel; and the opening end of the third water flow hole is provided with a plug.

In a possible implementation manner, a first transition hole is arranged at the connecting end of the first flowing water channel and the first flowing water hole, and the aperture of the first transition hole is larger than that of the first flowing water hole; and a second transition hole is arranged at the connecting end of the second water flowing channel and the second water flowing hole, and the aperture of the second transition hole is larger than that of the second water flowing hole.

In one possible implementation, the wall thickness of the third water flow channel is greater than 10 mm.

In a possible implementation manner, the outer water collecting block is of an L shape, the outer water collecting block comprises a vertical section and a horizontal section, the vertical section is fixedly installed on the top surface of the upper template, the horizontal section extends to the outer side of the upper template, and the top surface of the horizontal section is provided with an installation hole for installing a pipeline.

In one possible implementation, the differential pressure casting mold for the commercial wheel hub further comprises an intermediate plate for supporting the upper mold core, and the intermediate plate is fixedly connected with the upper mold plate through the inner water collection block.

In one possible implementation, the inner catchment block comprises an upper loose piece and a lower loose piece; go up loose piece fixed mounting in on the cope match-plate pattern, loose piece fixed mounting is in down the bottom surface of going up the loose piece, the both ends of loose piece length direction are equipped with the centre gripping groove down, the centre gripping groove is seted up the top surface of loose piece down, be equipped with on the lateral wall of intermediate lamella with the protruding piece of centre gripping groove cooperation installation, go up the loose piece with the cooperation of loose piece is right down the protruding piece presss from both sides tightly fixedly.

In one possible implementation, the raised block is integrally formed with the intermediate plate.

In a possible implementation manner, an annular sealing groove is formed in the top surface of the upper differential pressure tank, and a sealing ring is installed in the annular sealing groove.

In a possible implementation manner, a mounting flange is arranged on the outer side of the upper end of the upper differential pressure tank, a plurality of pressure plates are mounted on the upper template, and the plurality of pressure plates are arranged along the circumferential direction of the upper differential pressure tank and are located on the outer side of the mounting flange; the pressure plate is abutted to the bottom surface of the mounting flange and used for fixedly mounting the upper differential pressure tank on the upper template.

Compared with the prior art, according to the scheme shown in the embodiment of the application, the water collecting block is divided into the inner water collecting block and the outer water collecting block, the inner water collecting block and the outer water collecting block are respectively installed on the inner side and the outer side of the upper differential pressure tank, the cooling medium sequentially passes through the first water flow channel, the third water flow channel and the second water flow channel, and the third water flow channel is formed in the upper template, so that a through hole for a pipeline to pass through is not required to be formed in the upper differential pressure tank, and the pressure maintaining and sealing effects of the upper differential pressure tank are improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions 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 cross-sectional view of a differential pressure casting mold for a commercial wheel hub according to an embodiment of the present invention;

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

fig. 3 is a schematic view of an installation structure of an upper template and an upper differential pressure tank according to an embodiment of the present invention;

fig. 4 is a schematic cross-sectional structural view of an outer water collection block according to a second embodiment of the present invention;

fig. 5 is an exploded view of an assembly structure of an upper mold plate and a middle plate according to a second embodiment of the present invention.

In the figure: 1. mounting a template; 101. a third effluent passage; 102. a first water flow hole; 103. a second water flowing hole; 104. a third water flow hole; 105. blocking; 106. a first transition hole; 107. a second transition hole; 108. pressing a plate; 2. a lower template; 3. an upper mold core; 4. a lower mold core; 5. an upper differential pressure tank; 501. an annular seal groove; 502. a seal ring; 503. installing a flange; 6. a differential pressure tank is arranged; 7. a water collection block; 701. an inner water collection block; 702. an outer catchment block; 703. a first flow channel; 704. a second water flow channel; 705. a vertical section; 706. a horizontal segment; 707. mounting holes; 708. a loose piece is arranged; 709. a lower loose piece; 710. a clamping groove; 8. a middle plate; 801. and (4) a convex block.

Detailed Description

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

Referring to fig. 1, a differential pressure casting mold for a commercial wheel hub according to the present invention will now be described. The commercial wheel hub differential pressure casting mold comprises: cope match-plate pattern 1, lower bolster 2, go up mold core 3, lower mold core 4, go up differential pressure jar 5, lower differential pressure jar 6 and water collection piece 7, go up mold core 3 and last differential pressure jar 5 and install on cope match-plate pattern 1, lower mold core 4 and lower differential pressure jar 6 are installed on lower bolster 2, go up differential pressure jar 5 and lower differential pressure jar 6 suit respectively in the outside of last mold core 3 and lower mold core 4, water collection piece 7 fixed mounting is on cope match-plate pattern 1, water collection piece 7 includes: an inner water collecting block 701 and an outer water collecting block 702; the inner water collecting block 701 and the outer water collecting block 702 are respectively positioned at the inner side and the outer side of the upper differential pressure tank 5, a first water flowing channel 703 and a second water flowing channel 704 are respectively arranged inside the inner water collecting block 701 and the outer water collecting block 702, and a third water flowing channel 101 communicated with the first water flowing channel 703 and the second water flowing channel 704 is correspondingly arranged inside the upper template 1.

Compared with the prior art, the differential pressure casting die for the commercial wheel hub provided by the embodiment has the advantages that the water collection block 7 is divided into the inner water collection block 701 and the outer water collection block 702, the inner water collection block 701 and the outer water collection block 702 are respectively installed on the inner side and the outer side of the upper differential pressure tank 5, a cooling medium sequentially passes through the first water flow channel 703, the third water flow channel 101 and the second water flow channel 704, and the third water flow channel 101 is arranged in the upper template 1, so that a through hole for a pipeline to pass through is not required to be formed in the upper differential pressure tank 5, and the pressure maintaining and sealing effect of the upper differential pressure tank 5 is improved.

In some embodiments, referring to fig. 2, the third flow channel 101 includes a first flow hole 102, a second flow hole 103, and a third flow hole 104; the first water flow hole 102 and the second water flow hole 103 are formed in the bottom surface of the upper template 1, the third water flow hole 104 is formed in the outer side wall of the upper template 1, the first water flow hole 102 is communicated with the third water flow hole 104 and the first water flow channel 703, and the second water flow hole 103 is communicated with the third water flow hole 104 and the second water flow channel 704; the open end of the third water flow hole 104 is provided with a plug 105. In this embodiment, the third water flow holes 104 are blind holes and are formed on the outer side wall of the upper die plate 1, so that the processing of the upper die plate is facilitated. The first and second water flow holes 102 and 103 are located outside and inside the upper differential pressure tank 5, respectively. The open end of the third flow water hole 104 is provided with a threaded hole for mounting the plug 105. The plug 105 is used to close the opening of the third flow water hole 104 and prevent the cooling medium passing through the third flow water hole 104 from leaking.

In some embodiments, referring to fig. 2, a first transition hole 106 is formed at a connection end of the first water flow channel 703 and the first water flow hole 102, and a diameter of the first transition hole 106 is larger than a diameter of the first water flow hole 102; the connecting end of the second flowing water channel 704 and the second flowing water hole 103 is provided with a second transition hole 107, and the aperture of the second transition hole 107 is larger than that of the second flowing water hole 103. In this embodiment, the aperture of the first flow channel 703 (except for the first transition hole 106) is consistent with the aperture of the first flow hole 102, and the aperture of the second flow channel 704 (except for the second transition hole 107) is consistent with the aperture of the second flow hole 103. Due to the limitation of processing precision and assembly precision, when the inner water collecting block 701 and the outer water collecting block 702 are installed, the first water flow channel 703, the first water flow hole 102, the second water flow channel 704 and the second water flow hole 103 are dislocated, so that a first transition hole 106 is formed at the connecting end of the first water flow channel 703 and the first water flow hole 102, and a second transition hole 107 is formed at the connecting end of the second water flow channel 704 and the second water flow hole 103, so that the cooling medium can smoothly pass through.

In some embodiments, referring to FIG. 2, the third flow channel 101 has a wall thickness greater than 10 mm. In this embodiment, since the third flow channel 101 is opened inside the upper mold plate 1, a honeycomb structure is formed inside the upper mold plate 1, which can reduce the self weight of the upper mold plate 1 and improve the structural strength of the upper mold plate 1. Since the third flow passage 101 has a certain pressure during the transportation of the cooling medium, the wall thickness of the third flow passage 101 needs to be maintained at 10mm or more so as to be able to withstand the internal pressure and the force applied from the outside. It should be noted that: the wall thickness of the first flow channel 703 and the second flow channel 704 is also required to be more than 10mm, thereby ensuring the structural strength of the outer water collection block 702 and the inner water collection block 701.

In some embodiments, referring to fig. 1 and 4, the outer water collecting block 702 is L-shaped, the outer water collecting block 702 includes a vertical section 705 and a horizontal section 706, the vertical section 705 is fixedly installed on the top surface of the upper formwork 1, the horizontal section 706 extends to the outer side of the upper formwork 1, and the top surface of the horizontal section 706 is provided with an installation hole 707 for installing a pipeline. In this embodiment, the number of the mounting holes 707 is plural, and the mounting holes 707 are arranged in two rows, one row is connected to the water inlet pipe, and the other row is connected to the water outlet pipe. The end of the pipeline is fixedly provided with a quick-plug connector, and the quick-plug connector is inserted into the mounting hole 707, so that the pipeline can be connected with the outer water collecting block 702. Because the mounting hole 707 sets up the top surface at horizontal segment 706, so the link of pipeline and outer water collection piece 702 can not bulge the outside profile of outer water collection piece 702, so can play certain guard action to the pipeline, avoid causing to collide with it.

In some embodiments, referring to fig. 1, the differential pressure casting mold for a commercial wheel hub further comprises an intermediate plate 8, wherein the intermediate plate 8 is used for supporting the upper mold core 3, and the intermediate plate 8 is fixedly connected with the upper mold plate 1 through an inner water collection block 701. In this embodiment, the intermediate plate 8 has a disk shape, and the intermediate plate 8 is located below the upper die plate 1. The number of the inner water collection blocks 701 is plural, and is arranged along the circumferential direction of the intermediate plate 8. Interior water collection piece 701 separates cope match-plate pattern 1 and intermediate lamella 8, makes cope match-plate pattern 1 and intermediate lamella 8 leave certain space in vertical direction, promotes the radiating effect of this mould.

In some embodiments, referring to fig. 5, the inner catchment block 701 includes an upper live block 708 and a lower live block 709; the upper movable block 708 is fixedly arranged on the upper template 1, the lower movable block 709 is fixedly arranged on the bottom surface of the upper movable block 708, clamping grooves 710 are formed in two ends of the lower movable block 709 in the length direction, the clamping grooves 710 are formed in the top surface of the lower movable block 709, a protruding block 801 which is installed in a matched mode with the clamping grooves 710 is arranged on the outer side wall of the middle plate 8, and the upper movable block 708 is matched with the lower movable block 709 to clamp and fix the protruding block 801. In this embodiment, the upper loose piece 708 and the lower loose piece 709 are rectangular pieces, and the corners are provided with chamfers. The upper loose piece 708 is connected with the upper template 1 through bolts, and the lower loose piece 709 is also connected with the upper loose piece 708 through bolts. The holding groove 710 and the bottom surface of the upper loose piece 708 enclose a receiving cavity for receiving the protruding piece 801. The lower loose piece 709 provides a supporting force for the intermediate body. The middle plate 8 is firstly placed on the lower loose piece 709, the raised piece 801 corresponds to the clamping groove 710, and then the upper loose piece 708 and the lower loose piece 709 are locked by bolts, so that the middle is clamped and fixed. In order to further improve the connection strength between the middle plate 8 and the inner water collecting block 701, bolts may be added between the upper loose piece 708 (or the lower loose piece 709) and the convex pieces 801.

In some embodiments, referring to fig. 5, the raised blocks 801 are integrally formed with the middle plate 8. In this embodiment, the protruding blocks 801 and the intermediate plate 8 are integrally formed by casting or forging. The integrated into one piece's structural strength is higher, and is durable more.

In some embodiments, referring to fig. 2, an annular seal groove 501 is formed on the top surface of the upper differential pressure tank 5, and a seal ring 502 is installed in the annular seal groove 501. In this embodiment, the transverse cross-sectional dimensions of the annular seal groove 501 increase sequentially from top to bottom. The shape of the sealing ring 502 matches the shape of the annular sealing groove 501. The seal ring 502 is made of rubber and has a certain flexibility, so that the seal ring 502 can be smoothly installed in the annular seal groove 501. Because the annular sealing groove 501 is of a structure with a large top and a small bottom, no screws are needed to be installed between the sealing ring 502 and the upper differential pressure tank 5, and the sealing ring 502 is limited in the annular sealing groove 501 by the side wall of the annular sealing groove 501. The packing 502 abuts on the bottom surface of the upper die plate 1, thereby improving the sealing effect between the upper differential pressure tank 5 and the upper die plate 1.

In some embodiments, referring to fig. 3, a mounting flange 503 is provided on an outer side of an upper end of the upper differential pressure tank 5, a plurality of pressure plates 108 are mounted on the upper template 1, and the plurality of pressure plates 108 are arranged along a circumferential direction of the upper differential pressure tank 5 and located on an outer side of the mounting flange 503; the pressure plate 108 abuts on the bottom surface of the mounting flange 503 to fix the upper differential pressure tank 5 to the upper die plate 1. In this embodiment, the mounting flange 503 is an annular flange. By arranging the mounting flange 503, the contact area between the upper differential pressure tank 5 and the upper template 1 is increased, and meanwhile, the upper differential pressure tank 5 and the pressure plate 108 are convenient to assemble. One end of the pressure plate 108 is fixedly connected with the upper template 1 through a bolt, and the other end is covered on the mounting flange 503, so that the upper differential pressure tank 5 is fixed on the upper template 1. The number of the pressure plates 108 is at least three, and the pressure plates are uniformly arranged along the circumferential direction of the mounting flange 503. The pressing plate 108 abuts on the outer wall of the upper differential pressure tank 5, thereby effectively preventing the upper differential pressure tank 5 from being displaced in the horizontal direction.

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

Claims

1. A commercial wheel hub differential pressure casting mold comprising: cope match-plate pattern, lower bolster, go up the mold core, lower mold core, last differential pressure jar, lower differential pressure jar and water collection piece, go up the mold core with it installs to go up the differential pressure jar on the cope match-plate pattern, down the mold core with down the differential pressure jar is installed on the lower bolster, go up the differential pressure jar with down the differential pressure jar suit respectively the go up the mold core with the outside of lower mold core, water collection piece fixed mounting be in on the cope match-plate pattern, its characterized in that, the water collection piece includes: an inner water collection block and an outer water collection block; the inner water collecting block and the outer water collecting block are respectively positioned on the inner side and the outer side of the upper differential pressure tank, a first flowing water channel and a second flowing water channel are respectively arranged in the inner water collecting block and the outer water collecting block, and a third flowing water channel communicated with the first flowing water channel and the second flowing water channel is correspondingly arranged in the upper template.

2. A commercial vehicle wheel hub differential pressure casting mold as claimed in claim 1, wherein said third flow water passage includes a first flow water hole, a second flow water hole and a third flow water hole; the first flow hole and the second flow hole are formed in the bottom surface of the upper template, the third flow hole is formed in the outer side wall of the upper template, the first flow hole is communicated with the third flow hole and the first flow channel, and the second flow hole is communicated with the third flow hole and the second flow channel; and the opening end of the third water flow hole is provided with a plug.

3. A commercial vehicle wheel hub differential pressure casting mold as claimed in claim 2, wherein the connecting end of said first flow passage with said first flow hole is provided with a first transition hole having a larger diameter than that of said first flow hole; and a second transition hole is arranged at the connecting end of the second water flowing channel and the second water flowing hole, and the aperture of the second transition hole is larger than that of the second water flowing hole.

4. A commercial vehicle hub differential pressure casting mold as defined in claim 1, wherein said third water flow passage has a wall thickness of more than 10 mm.

5. A commercial vehicle hub differential pressure casting mold as claimed in claim 1, wherein said outer water collection block is L-shaped, said outer water collection block includes a vertical section fixedly mounted on a top surface of said upper mold plate and a horizontal section extending to an outer side of said upper mold plate, a top surface of said horizontal section being provided with a mounting hole for mounting a pipeline.

6. A commercial wheel hub differential casting mold as in claim 1, further comprising an intermediate plate for supporting said upper mold core, said intermediate plate being fixedly connected to said upper mold plate by said inner water collection block.

7. A commercial vehicle hub differential pressure casting mold as in claim 6, wherein said inner catchment block comprises an upper loose piece and a lower loose piece; go up loose piece fixed mounting in on the cope match-plate pattern, loose piece fixed mounting is in down the bottom surface of going up the loose piece, the both ends of loose piece length direction are equipped with the centre gripping groove down, the centre gripping groove is seted up the top surface of loose piece down, be equipped with on the lateral wall of intermediate lamella with the protruding piece of centre gripping groove cooperation installation, go up the loose piece with the cooperation of loose piece is right down the protruding piece presss from both sides tightly fixedly.

8. A commercial wheel hub differential pressure casting mold as in claim 7, wherein said bumps are integrally formed with said intermediate plate.

9. The differential pressure casting mold for a commercial vehicle wheel hub as claimed in claim 1, wherein the top surface of the upper differential pressure tank is provided with an annular seal groove, and a seal ring is installed in the annular seal groove.

10. A commercial vehicle wheel hub differential pressure casting mold as claimed in claim 1, wherein a mounting flange is provided on the outer side of the upper end of the upper differential pressure tank, and a plurality of pressure plates are mounted on the upper mold plate and arranged along the circumference of the upper differential pressure tank and located on the outer side of the mounting flange; the pressure plate is abutted to the bottom surface of the mounting flange and used for fixedly mounting the upper differential pressure tank on the upper template.