Semi-solid die-casting molds for shock towers

Abstract

The invention discloses a semi-solid die-casting mold for manufacturing a shock-absorbing tower, comprising a die seat and a punch seat, wherein the punch seat is provided with a punch core, the die seat is provided with a die core, a cavity is provided between the punch core and the die core, a gate sleeve and a gate sleeve locking plate are provided on the die seat, the gate sleeve is communicated with the middle part of the cavity, a fixing plate is provided on the upper side of the die seat, a gate sleeve docking seat is provided on the fixing plate, a direct current channel is provided on the gate sleeve docking seat, a water cutting nozzle assembly is provided on the upper side of the die seat, a die foot, an ejector plate and an ejector bottom plate are provided at the bottom of the punch seat, an ejector is provided between the ejector plate and the ejector bottom plate, and a plurality of groups of buckle machine assemblies are provided between the fixing plate, the die seat and the punch seat, so that when opening the mold, the die seat and the punch seat are separated only after the fixing plate and the die seat are separated for a distance; the central feeding method is adopted to greatly shorten the travel of the flow channel, reduce the energy loss of aluminum liquid in the filling process, and the die-cast product can be directly used without any treatment.

Description

[Technical field]

[0001] The invention relates to a die casting mold, in particular to a semi-solid die casting mold for manufacturing a shock tower. [Background technology]

[0002] At present, most of the automobile shock towers on the market are formed by traditional vacuum die casting, and then the aluminum alloy parts after vacuum die casting are subjected to T6 heat treatment to meet the use requirements. However, vacuum die casting and heat treatment are costly and require high technology. At present, there are only a few domestic manufacturers that can make high vacuum die casting molds, and most of them have to be imported from Europe and the United States. With the application of new materials, the continuous reduction of costs and higher environmental protection requirements, a new mold suitable for automobile shock towers is needed.

[0003] The present invention is proposed in view of the deficiencies in the prior art. [Summary of the invention]

[0004] The technical problem to be solved by the present invention is to provide a semi-solid die-casting mold for manufacturing a shock tower. The central feeding method is adopted to greatly shorten the stroke of the runner and reduce the energy loss of the aluminum liquid during the filling process. At the same time, the aluminum liquid filling can be made more balanced. Combined with the semi-solid injection technology, the die-cast product can be used directly without any treatment, and the produced product has basically no sand holes.

[0005] In order to solve the above technical problems, the semi-solid die-casting mold for manufacturing a shock tower of the present invention comprises a die base and a punch base that can be opened and closed relative to the die base, the punch base is provided with a punch core on the side opposite to the die base, the die base is provided with a die core that matches the punch core, a cavity for molding a workpiece is provided between the punch core and the die core, the die base is provided with a gate sleeve and a gate sleeve locking plate for locking the gate sleeve on the die base, the gate sleeve is communicated with the middle part of the cavity, and the upper side of the die base is provided with a fixing plate that can be opened and closed relative to the die base. The fixed plate is provided with a sprue sleeve docking seat docking with the sprue sleeve, the sprue sleeve docking seat is provided with a direct current channel communicated with the sprue sleeve, the upper side of the die seat is provided with a water gate cutting assembly for cutting off the water gate, the bottom of the punch seat is provided with a mold foot, an ejector plate and an ejector bottom plate, an ejector for ejecting a workpiece from the cavity is provided between the ejector plate and the ejector bottom plate, and a plurality of locking machine assemblies are provided between the fixed plate, the die seat and the punch seat, so that when the mold is opened, the die seat and the punch seat are separated only after the fixed plate and the die seat are separated for a certain distance.

[0006] As described above, in the semi-solid die-casting mold for manufacturing a shock-absorbing tower, the bottom of the gate sleeve docking seat is provided with an auxiliary cross-flow channel communicating with the straight flow channel.

[0007] As described above, the semi-solid die-casting mold for manufacturing a shock-absorbing tower, the water-cutting nozzle assembly includes a slide seat slidably connected to the upper side of a die seat, one end of the slide seat is provided with a cutting edge, and the die seat is also provided with a driver for driving the slide seat to move and thereby cut off the water outlet at the upper end of the workpiece.

[0008] As described above, the semi-solid die-casting mold for manufacturing a shock-absorbing tower, the die seat is provided with a wear-resistant sheet at the bottom of the slide seat.

[0009] The semi-solid die-casting mold for manufacturing a shock tower as described above, each group of the trigger assembly includes a pull rod, a toggle rod, and a toggle rod positioning seat, the upper end of the pull rod is connected to the side of the fixed plate, the toggle rod positioning seat is connected to the side of the punch seat, the lower end of the toggle rod is hinged on the toggle rod positioning seat, the toggle rod is provided with a barb that hooks the die seat when the die seat and the punch seat are tightly closed to prevent the die seat and the punch seat from separating, the toggle rod is also provided with a toggle pin, the pull rod is provided with a toggle block that cooperates with the toggle pin when the fixed plate and the die seat are separated to drive the barb to separate from the die seat, and the toggle rod positioning seat is also provided with a spring sheet that keeps the barb of the toggle rod hooked on the die seat.

[0010] As described above, in the semi-solid die-casting mold for manufacturing a shock tower, the outer side of the toggle block is provided with a first guide inclined surface, a toggle surface, and a second guide inclined surface with a smooth transition.

[0011] As described above, in the semi-solid die-casting mold for manufacturing a shock tower, the die seat is provided with a plurality of die exhaust plates, and the punch seat is provided with a punch exhaust plate corresponding to and matching the die exhaust plates.

[0012] As described above, in the semi-solid die-casting mold for manufacturing a shock-absorbing tower, the punch seat is provided with a punch insert penetrating through the punch core.

[0013] As described above, the semi-solid die-casting mold for manufacturing a shock tower is provided with a plurality of guide pillars on the fixed plate for accurately aligning the fixed plate, the die seat and the punch seat, and the die seat and the punch seat are respectively provided with guide holes that slide with the guide pillars.

[0014] As described above, in the semi-solid die-casting mold for manufacturing a shock tower, a limit block is provided between the fixed plate and the die seat for limiting the maximum distance between the fixed plate and the die seat.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. The present invention connects the gate sleeve with the middle of the cavity and adopts the method of central feeding to greatly shorten the travel of the runner and reduce the energy loss of the aluminum liquid during the filling process. At the same time, the aluminum liquid filling can be more balanced. With the semi-solid injection technology, the die-cast products can be used directly without any treatment, and the products produced basically have no sand holes.

[0017] 2. By providing a nozzle cutting assembly for cutting off the nozzle on the upper side of the die seat, the risk of scrapping the workpiece due to pulling between the nozzle part and the workpiece part can be avoided when opening the mold.

[0018] 3. By arranging multiple sets of locking machine components between the fixed plate, the die seat and the punch seat, when the mold is opened, the die seat and the punch seat are separated only after the fixed plate and the die seat are separated for a certain distance, which is convenient for the action of the water cutting assembly and also for demolding, avoiding forced mold opening and causing the workpiece to be scrapped.

Brief Description of the Drawings

[0019] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

[0020] Figure 1 It is a schematic diagram of the structure after the fixed plate, the concave mold seat and the punch mold seat are separated in the present invention;

[0021] Figure 2 It is a full cross-sectional schematic diagram of the fixing plate, the concave die seat and the convex die seat after being closed in the present invention;

[0022] Figure 3 for Figure 2 An enlarged view of the portion marked A in FIG.

[0023] Figure 4 It is a full cross-sectional schematic diagram of the fixed plate, the concave die seat and the punch seat after being separated in the present invention;

[0024] Figure 5 for Figure 4 An enlarged view of the portion B marked in FIG.

[0025] Figure 6 It is a structural schematic diagram of the hidden fixing plate, the die base and the components connected thereto in the present invention;

[0026] Figure 7 It is a structural schematic diagram of the hidden punch seat and the components connected thereto in the present invention;

[0027] Figure 8 It is a structural schematic diagram of the hidden fixing plate and the components connected thereto in the present invention;

[0028] Fig. 9 for Figure 8 An enlarged view of the portion marked C in FIG.

[0029] Fig.10 This is one of the structural schematic diagrams of the latch assembly in the present invention;

[0030] Fig.11 This is the second structural schematic diagram of the latch assembly in the present invention;

[0031] Fig.12 It is a schematic diagram of the model of the workpiece in the present invention where the nozzle has not been removed. [Specific implementation method]

[0032] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0033] like Figures 1 to 12 As shown, the semi-solid die-casting mold for manufacturing a shock tower in this embodiment includes a die base 1 and a punch base 2 that can be opened and closed relative to the die base 1, the punch base 2 is provided with a punch core 21 on the side opposite to the die base 1, the die base 1 is provided with a die core 11 that matches the punch core 21, a cavity for molding a workpiece 1000 is provided between the punch core 21 and the die core 11, the die base 1 is provided with a gate sleeve 12 and a gate sleeve locking plate 13 for locking the gate sleeve 12 on the die base 1, the gate sleeve 12 is communicated with the middle part of the cavity, the upper side of the die base 1 is provided with a fixing plate 3 that can be opened and closed relative to the die base 1, the fixing plate 3 is provided with a gate sleeve docking seat 31 docking with the gate sleeve 12, and the gate sleeve docking seat 31 is provided with a straight flow channel 301 communicating with the gate sleeve 12, the upper side of the die seat 1 is provided with a water gate cutting assembly 14 for cutting off the water gate 1001, the bottom of the punch seat 2 is provided with a mold foot 22, an ejector plate 23 and an ejector bottom plate 24, and an ejector 25 for ejecting the workpiece 1000 from the cavity is provided between the ejector plate 23 and the ejector bottom plate 24, and a plurality of sets of locking machine assemblies 4 are provided between the fixed plate 3, the die seat 1 and the punch seat 2, so that when the mold is opened, the fixed plate 3 and the die seat 1 are separated for a distance before the die seat 1 and the punch seat 2 are separated. The present invention connects the gate sleeve with the middle part of the cavity and adopts the method of central feeding, which greatly shortens the stroke of the runner and reduces the energy loss of the aluminum liquid during the filling process. At the same time, the aluminum liquid filling can be made more balanced. In combination with the semi-solid injection technology, the die-cast products can be used directly without any treatment, and the products produced basically have no sand holes. A water-cutting nozzle assembly for cutting off the water-cutting nozzle is provided on the upper side of the die seat, so that the risk of the water-cutting nozzle part and the workpiece part being pulled during mold opening and causing the workpiece to be scrapped can be avoided. Multiple sets of locking machine assemblies are provided between the fixed plate, the die seat and the punch seat, so that when the mold is opened, the fixed plate and the die seat are separated for a distance before the die seat and the punch seat are separated, which facilitates the action of the water-cutting nozzle assembly and also facilitates demoulding, avoiding forced mold opening and causing the workpiece to be scrapped.

[0034] An auxiliary cross flow channel 302 communicating with the direct flow channel 301 is provided at the bottom of the gate sleeve docking seat 31. With this design, an inverted water outlet extending into the auxiliary cross flow channel 302 is formed at the top of the workpiece. When the fixed plate and the die seat are separated, it is convenient to bring out the water outlet in the direct flow channel 301.

[0035] The water-cutting assembly is used to cut off the inverted water-filled opening extending into the auxiliary cross-flow channel 302 after the fixed plate and the die seat are separated, so as to prevent the inverted water-filled opening from tearing the workpiece when the die seat and the punch seat are separated. The water-cutting assembly 14 includes a slide seat 141 slidably connected to the upper side of the die seat 1, and a cutting edge is provided at one end of the slide seat 141. The die seat 1 is also provided with a driver 142 for driving the slide seat 141 to move and thereby cut off the water-filled opening at the upper end of the workpiece 1000.

[0036] In this embodiment, a wear-resistant sheet 15 is provided on the bottom of the die seat 1 and located at the slide seat 141 .

[0037] Each group of the trigger assembly 4 includes a pull rod 41, a toggle rod 42, and a toggle rod positioning seat 43. The upper end of the pull rod 41 is connected to the side of the fixed plate 3, the toggle rod positioning seat 43 is connected to the side of the punch seat 2, and the lower end of the toggle rod 42 is hinged on the toggle rod positioning seat 43. The toggle rod 42 is provided with a barb 421 for hooking the die seat 1 to prevent the die seat 1 and the punch seat 2 from separating after the die seat 1 and the punch seat 2 are tightly closed. The toggle rod 42 is also provided with a toggle pin 422. The pull rod 41 is provided with a toggle block 411 which cooperates with the toggle pin 422 after the fixed plate 3 and the die seat 1 are separated to drive the barb 421 to separate from the die seat 1. The toggle rod positioning seat 43 is also provided with a spring piece 431 for keeping the barb 421 of the toggle rod 42 hooked on the die seat 1.

[0038] In order to facilitate the toggle block 411 to smoothly drive the toggle pin to toggle the toggle rod, a first guiding inclined surface 4111 , a toggle surface 4112 , and a second guiding inclined surface 4113 with smooth transition are provided on the outer side of the toggle block 411 .

[0039] In order to facilitate exhaust during die casting, a plurality of die exhaust plates 16 are provided on the die base 1, and a punch exhaust plate 26 corresponding to and cooperating with the die exhaust plates 16 is provided on the punch base 2.

[0040] In this embodiment, a punch insert 27 penetrating the punch core 21 is provided on the punch seat 2 .

[0041] In order to facilitate accurate alignment of the fixed plate, the die seat and the punch seat, a plurality of guide pillars 32 are provided on the fixed plate 3 for accurate alignment of the fixed plate 3, the die seat 1 and the punch seat 2. The die seat 1 and the punch seat 2 are respectively provided with guide holes that slide with the guide pillars 32.

[0042] After the fixing plate 3 and the die holder 1 are separated, it is necessary to prevent them from being further separated. A limit block 5 is provided between the fixing plate 3 and the die holder 1 to limit the maximum separation distance of the fixing plate 3 and the die holder 1 .

[0043] Now briefly describe the mold opening process:

[0044] Step 1: The fixed plate 3 and the die base 1 are separated under the action of the mechanical force of the die opening of the casting machine;

[0045] Step 2: When the toggle block 411 on the pull rod 41 drives the toggle pin 422 to disengage the barb 421 from the die seat 1, the limit block 5 limits the fixed plate 3 and the die seat 1;

[0046] Step 3: The nozzle cutting assembly cuts off the nozzle;

[0047] Step 4: The die base and the punch base are separated and demoulded under the action of the mechanical force of the casting machine.

[0048] The above examples are only used to further illustrate the technical content of the present invention, so that readers can understand it more easily, but they do not mean that the implementation of the present invention is limited to this. Any technical extension or re-creation made according to the present invention is protected by the present invention. The protection scope of the present invention shall be subject to the claims.

Claims

1. A semi-solid die-casting mold for manufacturing a shock tower, characterized in that: The invention comprises a die base (1) and a punch base (2) which can be opened and closed relative to the die base (1); a punch core (21) is installed on the punch base (2) on a side facing the die base (1); a die core (11) which matches the punch core (21) is provided on the die base (1); a cavity for molding a workpiece (1000) is provided between the punch core (21) and the die core (11); a sprue bushing (12) and a sprue bushing locking plate (13) for locking the sprue bushing (12) on the die base (1); the sprue bushing (12) is communicated with the middle part of the cavity; a fixing plate (3) which can be opened and closed relative to the die base (1) is provided on the upper side of the die base (1); The fixed plate (3) is provided with a sprue sleeve docking seat (31) docked with the sprue sleeve (12); the sprue sleeve docking seat (31) is provided with a direct current channel (301) communicating with the sprue sleeve (12); the upper side of the die seat (1) is provided with a water gate cutting assembly (14) for cutting off the water gate (1001); the bottom of the punch seat (2) is provided with a mold foot (22), an ejector plate (23) and an ejector bottom plate (24); an ejector (25) for ejecting the workpiece (1000) from the mold cavity is provided between the ejector plate (23) and the ejector bottom plate (24); a plurality of locking machine assemblies (4) are provided between the fixed plate (3), the die seat (1) and the punch seat (2), so that when opening the mold, the die seat (1) and the punch seat (2) are separated from each other only after the fixed plate (3) and the die seat (1) are separated for a certain distance; Each group of the trigger assembly (4) comprises a pull rod (41), a toggle rod (42), and a toggle rod positioning seat (43), wherein the upper end of the pull rod (41) is connected to the side of the fixed plate (3), the toggle rod positioning seat (43) is connected to the side of the punch seat (2), the lower end of the toggle rod (42) is hinged on the toggle rod positioning seat (43), and the toggle rod (42) is provided with a hook for hooking the die seat (1) when the die seat (1) and the punch seat (2) are tightly closed to prevent the die seat (2) from being locked. 1) and the male die seat (2), the toggle rod (42) is also provided with a toggle pin (422), the pull rod (41) is provided with a toggle block (411) which cooperates with the toggle pin (422) after the fixing plate (3) and the female die seat (1) are separated to drive the toggle hook (421) to separate from the female die seat (1), and the toggle rod positioning seat (43) is also provided with a spring piece (431) which enables the toggle rod (42) to keep the hook (421) on the female die seat (1) hooked; A limit block (5) is provided between the fixing plate (3) and the die seat (1) for limiting the maximum distance between the fixing plate (3) and the die seat (1).

2. The semi-solid die-casting mold for manufacturing a shock tower according to claim 1, characterized in that An auxiliary cross-flow channel (302) communicating with the straight flow channel (301) is provided at the bottom of the gate sleeve docking seat (31).

3. The semi-solid die-casting mold for manufacturing a shock tower according to claim 1, characterized in that The water outlet cutting assembly (14) comprises a slide seat (141) slidably connected to the upper side of the die seat (1), one end of the slide seat (141) is provided with a cutting edge, and the die seat (1) is also provided with a driver (142) for driving the slide seat (141) to move and thereby cut off the water outlet at the upper end of the workpiece (1000).

4. The semi-solid die-casting mold for manufacturing a shock tower according to claim 1, characterized in that The die seat (1) is provided with a wear-resistant sheet (15) at the bottom of the slide seat (141).

5. The semi-solid die-casting mold for manufacturing a shock tower according to claim 1, characterized in that The outer side of the toggle block (411) is provided with a first guiding inclined surface (4111), a toggle surface (4112), and a second guiding inclined surface (4113) with a smooth transition.

6. The semi-solid die-casting mold for manufacturing a shock tower according to claim 1, characterized in that The die seat (1) is provided with a plurality of die exhaust plates (16), and the punch seat (2) is provided with a punch exhaust plate (26) corresponding to and matching the die exhaust plates (16) one by one.

7. The semi-solid die-casting mold for manufacturing a shock tower according to claim 1, characterized in that The punch seat (2) is provided with a punch insert (27) penetrating the punch core (21).

8. The semi-solid die-casting mold for manufacturing a shock tower according to claim 1, characterized in that The fixing plate (3) is provided with a plurality of guide posts (32) for accurately aligning the fixing plate (3), the die seat (1) and the punch seat (2); the die seat (1) and the punch seat (2) are respectively provided with guide holes for slidingly cooperating with the guide posts (32).

Images