Multi-size crankshaft connecting rod casting device

Abstract

The invention belongs to the technical field of crankshaft connecting rod manufacturing, and particularly relates to a multi-size crankshaft connecting rod casting device which comprises a workbench and an upper cover, supporting legs are fixedly installed at the bottom of the workbench, a hydraulic rod is fixedly installed in the workbench, and a connecting piece is fixedly installed at the top end of the hydraulic rod; a lower cover is fixedly installed on the top of the workbench, a bottom die is fixedly installed in the lower cover, a first casting groove is formed in the bottom die, and a reserved hole is formed in the first casting groove. According to the crankshaft connecting rod casting mold, the casting hole penetrates through the top mold, and the internal space of the melting furnace is communicated with the interiors of the runner, the leakage groove, the casting hole and the second casting groove, so that molten iron molten in the melting furnace can flow into the interiors of the first casting groove and the second casting groove to cast the crankshaft connecting rod; and air in the first casting groove and the second casting groove can be exhausted when the crankshaft connecting rod is cast.

Description

Technical Field

[0001] The invention belongs to the technical field of crankshaft connecting rod manufacturing, and in particular relates to a multi-size crankshaft connecting rod casting device. Background Art

[0002] The casting process of the crankshaft connecting rod involves injecting liquid metal into a casting mold cavity that is compatible with the shape and size of the part, and then cooling and solidifying it to obtain a blank or part. The casting process of the crankshaft connecting rod first requires the design of a suitable mold. Mold design is the first step in the metal casting process and determines the final shape and quality of the finished product.

[0003] However, most existing crankshaft connecting rod casting devices can only produce crankshaft connecting rods of one size, which greatly reduces the application range of the device. When crankshaft connecting rods of different sizes are required, the casting device can only be replaced, which will cause a certain degree of waste of resources and increase production costs. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides a multi-size crankshaft connecting rod casting device, which solves the problem raised in the above background technology that the crankshaft connecting rod casting device cannot cast crankshaft connecting rods of multiple sizes.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multi-size crankshaft connecting rod casting device, comprising a workbench and an upper cover, the bottom of the workbench is fixedly installed with a supporting foot, the inside of the workbench is fixedly installed with a hydraulic rod, the top of the hydraulic rod is fixedly installed with a connecting piece, the top of the workbench is fixedly installed with a lower cover, the inside of the lower cover is fixedly installed with a bottom mold, the inside of the bottom mold is provided with a No. 1 casting groove, the inside of the No. 1 casting groove is provided with a reserved hole, the inside of the lower cover is fixedly installed with a No. 1 telescopic rod, the top of the No. 1 telescopic rod is fixedly installed with an ejector pin, and the top of the lower cover is fixedly installed with There is a clamping piece, a clamping slot is provided on one side of the upper cover, a melting furnace is fixedly installed on the top of the upper cover, a feeding port is provided on the top of the melting furnace, a heating coil is fixedly installed inside the melting furnace, a flow channel is provided inside the upper cover, a heating wire is fixedly installed on the inner wall of the flow channel, a leakage groove is provided inside the upper cover, a casting hole is provided on the inner bottom surface of the leakage groove, a No. 2 telescopic rod is fixedly installed inside the upper cover, a baffle is fixedly installed on one end of the No. 2 telescopic rod, a top mold is fixedly installed inside the upper cover, a No. 2 casting groove is provided inside the top mold, and a ventilation hole is provided inside the upper cover.

[0006] Preferably, the casting hole passes through the top mold, and the internal space of the melting furnace is communicated with the flow channel, the drain groove, the casting hole and the interior of the second casting groove.

[0007] Preferably, there are three top molds, three air holes, and each of the air holes is communicated with the No. 2 casting groove inside the top mold.

[0008] Preferably, the ejector pin is located inside the reserved hole, and the gap between the ejector pin and the reserved hole is small.

[0009] Preferably, the baffle is located inside the drain groove, and the side surface of the baffle close to the casting hole is an inclined surface.

[0010] Preferably, there are three bottom molds, one bottom mold and one top mold are grouped together, and the sizes of the bottom mold and the top mold in each group are different.

[0011] Preferably, the size of the card member is slightly smaller than the size of the card slot, and the card slot is located directly above the card member.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The multi-size crankshaft connecting rod casting device has a casting hole penetrating the top mold, and the internal space of the melting furnace is interconnected with the flow channel, the leakage groove, the casting hole and the interior of the No. 2 casting groove, so that the molten iron in the melting furnace can flow into the interior of the No. 1 casting groove and the No. 2 casting groove to cast the crankshaft connecting rod. By arranging each air vent to be interconnected with the No. 2 casting groove inside the top mold, the air inside the No. 1 casting groove and the No. 2 casting groove can be discharged when casting the crankshaft connecting rod.

[0014] 2. The multi-size crankshaft connecting rod casting device, by locating the ejector pin inside the reserved hole, and with a very small gap between the ejector pin and the reserved hole, can eject the crankshaft connecting rod from the reserved hole after the casting is completed, and then take out the cast crankshaft connecting rod; by installing the baffle plate inside the leakage groove, and setting the side of the baffle plate close to the casting hole into an inclined surface, the baffle plate can block the casting hole when the No. 2 telescopic rod is started.

[0015] 3. The multi-size crankshaft connecting rod casting device can cast crankshaft connecting rods of different sizes during casting by setting the sizes of each group of bottom molds and top molds to be different. By setting the size of the clamping piece to be slightly smaller than the size of the slot and the slot being located directly above the clamping piece, the clamping piece can be stuck inside the slot when the hydraulic rod is started, thereby preventing the upper cover from shifting left and right when the lower cover is in contact. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a complete structural schematic diagram of the present invention;

[0018] Figure 2 It is a cross-sectional view No. 1 of the present invention;

[0019] Figure 3 For the present invention Figure 2 A partial enlarged view of middle A;

[0020] Figure 4 For the present invention Figure 2 A partial enlarged view of B in the middle;

[0021] Figure 5 It is a cross-sectional view No. 2 of the present invention;

[0022] Figure 6 For the present invention Figure 5 A partial enlarged view of C in the middle.

[0023] Among them, 1 workbench, 2 upper cover, 3 supporting feet, 4 hydraulic rods, 5 connecting parts, 6 lower cover, 7 bottom mold, 8 No. 1 casting trough, 9 reserved holes, 10 No. 1 telescopic rod, 11 ejector pin, 12 clamp, 13 clamping slot, 14 melting furnace, 15 feed port, 16 runner, 17 heating wire, 18 trough, 19 casting hole, 20 No. 2 telescopic rod, 21 top mold, 22 No. 2 casting trough, 23 air vents, 24 heating coil, 25 baffle. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-6The present invention provides the following technical solutions: a multi-size crankshaft connecting rod casting device, comprising a workbench 1 and an upper cover 2, a support foot 3 is fixedly installed at the bottom of the workbench 1, a hydraulic rod 4 is fixedly installed inside the workbench 1, a connecting piece 5 is fixedly installed at the top of the hydraulic rod 4, a lower cover 6 is fixedly installed on the top of the workbench 1, a bottom mold 7 is fixedly installed inside the lower cover 6, a No. 1 casting groove 8 is provided inside the bottom mold 7, a reserved hole 9 is provided inside the No. 1 casting groove 8, a No. 1 telescopic rod 10 is fixedly installed inside the lower cover 6, a top pin 11 is fixedly installed on the top of the No. 1 telescopic rod 10, a clamp 12 is fixedly installed on the top of the lower cover 6, and one side of the upper cover 2 A card slot 13 is provided, a melting furnace 14 is fixedly installed on the top of the upper cover 2, a feed port 15 is provided on the top of the melting furnace 14, a heating coil 24 is fixedly installed inside the melting furnace 14, a flow channel 16 is provided inside the upper cover 2, a heating wire 17 is fixedly installed on the inner wall of the flow channel 16, a leakage groove 18 is provided inside the upper cover 2, a casting hole 19 is provided on the inner bottom surface of the leakage groove 18, a No. 2 telescopic rod 20 is fixedly installed inside the upper cover 2, a baffle 25 is fixedly installed at one end of the No. 2 telescopic rod 20, a top mold 21 is fixedly installed inside the upper cover 2, a No. 2 casting groove 22 is provided inside the top mold 21, and a vent hole 23 is provided inside the upper cover 2.

[0026] In this embodiment, by making the casting hole 19 pass through the top mold 21, and the internal space of the melting furnace 14 is interconnected with the flow channel 16, the leakage groove 18, the casting hole 19 and the interior of the No. 2 casting groove 22, the molten iron in the melting furnace 14 can flow into the interior of the No. 1 casting groove 8 and the No. 2 casting groove 22 to cast the crankshaft connecting rod. By setting each air vent 23 to be interconnected with the No. 2 casting groove 22 inside the top mold 21, the air inside the No. 1 casting groove 8 and the No. 2 casting groove 22 can be discharged when casting the crankshaft connecting rod. By locating the ejector pin 11 inside the reserved hole 9, and the gap between the ejector pin 11 and the reserved hole 9 is very small, the ejector pin 11 can be used to remove the air from the No. 1 casting groove 8 and the No. 2 casting groove 22 after the crankshaft connecting rod is cast. The crankshaft connecting rod that has been cast is ejected from the reserved hole 9 and then taken out. By installing the baffle 25 inside the leakage groove 18 and setting the side of the baffle 25 close to the casting hole 19 as an inclined surface, the baffle 25 can block the casting hole 19 when the second telescopic rod 20 is started. By setting the sizes of each group of bottom molds 7 and top molds 21 to be different, crankshaft connecting rods of different sizes can be cast during casting. By setting the size of the clamping member 12 to be slightly smaller than the size of the clamping slot 13, and the clamping slot 13 being located directly above the clamping member 12, the clamping member 12 can be stuck in the inside of the clamping slot 13 when the hydraulic rod 4 is started, thereby preventing the upper cover 2 from shifting left and right when contacting the lower cover 6.

[0027] Specifically, the casting hole 19 passes through the top mold 21, and the internal space of the melting furnace 14 is interconnected with the interior of the runner 16, the leakage groove 18, the casting hole 19 and the No. 2 casting groove 22. By making the casting hole 19 pass through the top mold 21, and the internal space of the melting furnace 14 is interconnected with the interior of the runner 16, the leakage groove 18, the casting hole 19 and the No. 2 casting groove 22, the molten iron in the melting furnace 14 can flow into the interior of the No. 1 casting groove 8 and the No. 2 casting groove 22 to cast the crankshaft connecting rod.

[0028] Specifically, there are three top molds 21 and three air holes 23, and each air hole 23 is interconnected with the No. 2 casting groove 22 inside the top mold 21. By setting each air hole 23 to be interconnected with the No. 2 casting groove 22 inside the top mold 21, the air inside the No. 1 casting groove 8 and the No. 2 casting groove 22 can be discharged when casting the crankshaft connecting rod.

[0029] Specifically, the ejector pin 11 is located inside the reserved hole 9, and the gap between the ejector pin 11 and the reserved hole 9 is small. By locating the ejector pin 11 inside the reserved hole 9 and making the gap between the ejector pin 11 and the reserved hole 9 very small, the crankshaft connecting rod can be ejected from the reserved hole 9 by the ejector pin 11 after the casting is completed, thereby taking out the cast crankshaft connecting rod.

[0030] Specifically, the baffle 25 is located inside the leakage groove 18, and the side of the baffle 25 close to the casting hole 19 is an inclined surface. By installing the baffle 25 inside the leakage groove 18 and setting the side of the baffle 25 close to the casting hole 19 to an inclined surface, the baffle 25 can block the casting hole 19 when the second telescopic rod 20 is started.

[0031] Specifically, there are three bottom molds 7, one bottom mold 7 and one top mold 21 are grouped together, and the sizes of each group of bottom molds 7 and top molds 21 are different. By setting the sizes of each group of bottom molds 7 and top molds 21 to be different, crankshaft connecting rods of different sizes can be cast during casting.

[0032] Specifically, the size of the card member 12 is slightly smaller than the size of the slot 13, and the slot 13 is located directly above the card member 12. By setting the size of the card member 12 to be slightly smaller than the size of the slot 13, and the slot 13 is located directly above the card member 12, the card member 12 can be stuck inside the slot 13 when the hydraulic rod 4 is started, thereby preventing the upper cover 2 from being displaced left and right when contacting the lower cover 6.

[0033] The working principle and use process of the present invention are as follows: when the present invention is used, the hydraulic rod 4 is first started to lift the upper cover 2 to spray the release agent inside the No. 1 casting trough 8 and the No. 2 casting trough 22, and then the hydraulic rod 4 is started to lower the upper cover 2, so that the upper cover 2 and the lower cover 6 are closed, and the clamping member 12 is clamped in the inside of the clamping slot 13, and then the material is put into the melting furnace 14 from the feed port 15, and the heating coil 24 in the melting furnace 14 melts the material to form molten metal, and the molten metal flows from the inside of the melting furnace 14 to the inside of the runner 16, and the heating wire 17 in the runner 16 heats the molten metal to prevent the molten metal from cooling and solidifying, and then the size of the crankshaft connecting rod to be cast is selected, and the No. 2 stretching is started. The retracting rod 20 moves the baffles 25 to different positions to open the leakage groove 18, and the molten metal flows into the leakage groove 18 and flows into the interior of the No. 1 casting groove 8 and the No. 2 casting groove 22 from the casting hole 19, and the air is discharged from the interior of the air vent 23. When the interior of the No. 1 casting groove 8 and the No. 2 casting groove 22 are filled with molten metal, the No. 2 telescopic rod 20 is started to push the baffle 25 to block the leakage groove 18, and after waiting for the molten metal to cool and solidify, the hydraulic rod 4 is started to lift the upper cover 2, and then the No. 1 telescopic rod 10 is started to push the ejector 11, and the ejector 11 is ejected from the inside of the reserved hole 9 to take out the cast crankshaft connecting rod, wherein the input ends of the electrical equipment in this device are electrically connected to the external power supply.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A crankshaft connecting rod casting device of multiple sizes, comprising a workbench (1) and an upper cover (2), characterized in that: A supporting foot (3) is fixedly installed at the bottom of the workbench (1), a hydraulic rod (4) is fixedly installed inside the workbench (1), a connecting piece (5) is fixedly installed at the top of the hydraulic rod (4), a lower cover (6) is fixedly installed at the top of the workbench (1), a bottom mold (7) is fixedly installed inside the lower cover (6), a No. 1 casting groove (8) is provided inside the bottom mold (7), a reserved hole (9) is provided inside the No. 1 casting groove (8), a No. 1 telescopic rod (10) is fixedly installed inside the lower cover (6), a top pin (11) is fixedly installed at the top of the No. 1 telescopic rod (10), a clamping piece (12) is fixedly installed at the top of the lower cover (6), a clamping groove (13) is provided on one side of the upper cover (2), and a clamping piece (13) is fixedly installed at the top of the upper cover (2). A melting furnace (14) is provided, wherein a feed port (15) is provided at the top of the melting furnace (14), a heating coil (24) is fixedly installed inside the melting furnace (14), a flow channel (16) is provided inside the upper cover (2), a heating wire (17) is fixedly installed on the inner wall of the flow channel (16), a leakage groove (18) is provided inside the upper cover (2), a casting hole (19) is provided on the inner bottom surface of the leakage groove (18), a No. 2 telescopic rod (20) is fixedly installed inside the upper cover (2), a baffle (25) is fixedly installed at one end of the No. 2 telescopic rod (20), a top mold (21) is fixedly installed inside the upper cover (2), a No. 2 casting groove (22) is provided inside the top mold (21), and a vent hole (23) is provided inside the upper cover (2).

2. A multi-size crankshaft connecting rod casting device according to claim 1, characterized in that: The casting hole (19) penetrates the top mold (21), and the internal space of the melting furnace (14) is interconnected with the flow channel (16), the drain groove (18), the casting hole (19) and the interior of the second casting groove (22).

3. A multi-size crankshaft connecting rod casting device according to claim 1, characterized in that: The number of the top molds (21) is three, the number of the air holes (23) is three, and each of the air holes (23) is communicated with the No. 2 casting groove (22) inside the top mold (21).

4. A multi-size crankshaft connecting rod casting device according to claim 1, characterized in that: The ejector pin (11) is located inside the reserved hole (9), and the gap between the ejector pin (11) and the reserved hole (9) is relatively small.

5. The multi-size crankshaft connecting rod casting device according to claim 1, characterized in that: The baffle plate (25) is located inside the drain groove (18), and the side surface of the baffle plate (25) close to the casting hole (19) is an inclined surface.

6. The multi-size crankshaft connecting rod casting device according to claim 1, characterized in that: There are three bottom molds (7), one bottom mold (7) and one top mold (21) form a group, and the sizes of the bottom mold (7) and the top mold (21) in each group are different.

7. The multi-size crankshaft connecting rod casting device according to claim 1, characterized in that: The size of the card member (12) is slightly smaller than the size of the card slot (13), and the card slot (13) is located directly above the card member (12).

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