Aluminum casting machining die

Abstract

The utility model relates to the field of aluminum casting machining dies, and discloses an aluminum casting machining die which comprises a lower die, an upper die is arranged on the upper surface of the lower die, a positioning mechanism is arranged on the upper surface of the upper die and comprises an adjusting assembly and a lifting assembly, and a mounting assembly is arranged on the lower surface of the upper die. The adjusting assembly comprises a supporting rod, a positioning block is slidably connected to the outer wall of the supporting rod, an inserting rod is inserted into the right end of the upper surface of the positioning block, a clamping block is elastically connected to the inner wall of the positioning block through a compression spring, and a clamping groove is formed in the upper surface of the supporting rod. According to the utility model, through the cooperation of the positioning mechanism, the reserved positions of the air hole and the casting hole can be flexibly adjusted, the metal pipe does not need to be held by hands in the reserving process, the operation convenience is obviously improved, and meanwhile, the insertion rod, the sleeve and the hollow pipe are always kept vertical, so that the reserved holes are uniform, and the subsequent casting quality is powerfully guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of aluminum casting processing molds, in particular to an aluminum casting processing mold. Background Art

[0002] Before CNC machining of precision aluminum parts, a rough blank must be obtained. To ensure accurate positioning and precise dimensional processing during precision machining, a sand casting process and the development of sand casting molds are essential. Molding sand is then formed within a designed mold. Aluminum ingots are melted into a liquid and then poured into the sand casting mold to produce the desired part blank.

[0003] Before traditional aluminum parts are cast in sand casting molds, ventilation holes and casting holes must be reserved in the sand casting mold. However, due to the differences in aluminum part models, the reserved positions of ventilation holes and casting holes also vary. In the traditional reservation method, when making the sand casting mold, the worker needs to hold a metal tube with his hand while filling the casting sand. After the casting sand is formed, the metal tube is pulled out to obtain the reserved holes. However, this method is quite cumbersome to operate because the worker needs to hold the metal tube at all times, and it is difficult to ensure that the metal tube is vertical, which will affect the subsequent processing quality.

[0004] In addition, after the upper sand mold and the lower sand mold are made, the upper mold and the lower mold need to be assembled and poured with molten aluminum to obtain a forming mold. The traditional upper mold and the lower mold are generally fixed with bolts. During installation, the threaded holes need to be aligned. The alignment work takes a certain amount of time and is inefficient. In addition, when the upper mold and the lower mold are assembled, casting sand is likely to remain on the edge of the lower mold, which can easily lead to gaps after the assembly is completed, thereby affecting the subsequent workpiece molding quality.

[0005] Therefore, a die for processing aluminum castings is proposed to solve the above problems. Utility Model Content

[0006] In order to make up for the above shortcomings, the utility model provides a casting aluminum processing mold, which aims to improve the problem in the prior art that the reserved holes are difficult to operate and easily affect the subsequent casting quality.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a casting aluminum processing mold, including a lower mold, the upper surface of the lower mold is provided with an upper mold, the upper surface of the upper mold is provided with a positioning mechanism, the positioning mechanism includes an adjusting assembly and a lifting assembly, the lower surface of the upper mold is provided with a mounting assembly, the adjusting assembly includes a support rod, the outer wall of the support rod is slidably connected to the positioning block, the right end of the upper surface of the positioning block is inserted with an insertion rod, the inner wall of the positioning block is elastically connected to a clamping block through a compression spring, the upper surface of the support rod is provided with a clamping groove, the outer wall of the support rod is slidably connected to the positioning plate, the lower surface of the positioning plate is slidably connected to a sleeve, the inner wall of the sleeve is elastically connected to the insertion block through a limit spring, and the inner wall of the front side of the positioning plate is provided with a slot.

[0008] As a further description of the above technical solution:

[0009] The lifting assembly comprises a pull ring, the lower surface of which is fixedly connected to a round rod, and the inner wall of the sleeve is elastically connected to a hollow tube via a connecting spring.

[0010] As a further description of the above technical solution:

[0011] The mounting assembly includes a mounting block, a second inclined surface is formed on the lower surface of the upper mold, and a first inclined surface is formed on the upper surface of the lower mold.

[0012] As a further description of the above technical solution:

[0013] The rear surface of the support rod is fixedly connected to the top end of the rear inner wall of the upper mold, the clamping block is inserted into the inner wall of the clamping slot, and the lower surface of the clamping block is set to be an arc surface.

[0014] As a further description of the above technical solution:

[0015] The clamping block passes through and is slidably connected to the lower surface of the positioning block, one end of the compression spring is fixedly connected to the upper surface of the clamping block, and the other end of the compression spring is fixedly connected to the inner wall of the top end of the positioning block.

[0016] As a further description of the above technical solution:

[0017] There are multiple groups of the clamping blocks and compression springs, and the multiple groups of the clamping blocks and compression springs are evenly distributed in the positioning block and the positioning plate.

[0018] As a further description of the above technical solution:

[0019] The insert block passes through and is slidably connected to the front surface of the sleeve, one end of the limit spring is fixedly connected to the rear surface of the insert block, and the other end of the limit spring is fixedly connected to the inner wall of the rear side of the sleeve.

[0020] As a further description of the above technical solution:

[0021] The front surface of the inserting block is set as an arc surface, and the inserting block is inserted into the inner wall of the slot.

[0022] As a further description of the above technical solution:

[0023] The hollow tube passes through and is slidably connected to the lower surface of the sleeve, one end of the connecting spring is fixedly connected to the inner wall of the top end of the sleeve, the other end of the connecting spring is fixedly connected to the upper surface of the hollow tube, and the bottom end of the round rod is fixedly connected to the top end of the inner wall of the hollow tube.

[0024] As a further description of the above technical solution:

[0025] The mounting block is fixedly connected to the front surface of the upper mold, and the first inclined surface and the second inclined surface are in contact with each other.

[0026] The utility model has the following beneficial effects:

[0027] 1. In this utility model, the reserved positions of the vent holes and pouring holes can be flexibly adjusted through the cooperation of the positioning mechanism. Furthermore, during the reservation process, the metal tube does not need to be manually supported, significantly improving operational convenience. Furthermore, the insert rod, sleeve, and hollow tube remain vertical at all times, ensuring uniformity of the reserved holes and effectively guaranteeing the quality of subsequent casting.

[0028] 2. In the present invention, the cooperation of the mounting components can facilitate the assembly of the upper mold and the lower mold, and when assembled, the threaded holes on the mounting blocks of the upper mold and the lower mold will be aligned, which makes it easy to tighten the bolts, reduces the time spent on aligning the threaded holes, and improves the installation efficiency of the device.

[0029] 3. In the present invention, since the upper surface of the lower mold is provided with a slope 1, and the slope 1 is inclined toward the four sides of the lower mold, the edge height is lower, which makes it difficult for sand to stay on the slope 1, and can effectively avoid the residual casting sand, reduce the risk of gaps after assembly, and improve the installation quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic front view of the three-dimensional structure of the overall device of the present invention;

[0031] Figure 2 This is a schematic diagram of the three-dimensional structure of the upper mold and the lower mold in the utility model;

[0032] Figure 3 This is a schematic cross-sectional view of the three-dimensional structure of the positioning block, support rod, and positioning plate in the present invention;

[0033] Figure 4 This is a schematic diagram of the three-dimensional structure of the sleeve and the positioning plate in the present invention;

[0034] Figure 5 This is a schematic cross-sectional view of the three-dimensional structure of the sleeve and the hollow tube in the present invention;

[0035] Figure 6 It is a top view schematic diagram of the three-dimensional structure of the pull ring and hollow tube in the utility model.

[0036] Legend:

[0037] 1. Upper die; 2. Lower die; 31. Support rod; 32. Positioning block; 33. Insert rod; 34. Clamping block; 35. Compression spring; 36. Positioning plate; 37. Sleeve; 38. Limit spring; 39. Inserting block; 301. Slot; 302. Slot; 41. Pull ring; 42. Round rod; 43. Connecting spring; 44. Hollow tube; 51. Mounting block; 501. Inclined surface 1; 502. Inclined surface 2. DETAILED DESCRIPTION

[0038] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0039] Reference Figure 1 - Figure 2 The utility model provides an embodiment: a casting aluminum processing mold, including a lower mold 2, an upper mold 1 is provided on the upper surface of the lower mold 2, the upper surface of the lower mold 2 is in contact with the lower surface of the upper mold 1, and a positioning mechanism is provided on the upper surface of the upper mold 1. The positioning mechanism includes an adjusting component and a lifting component, and the lower surface of the upper mold 1 is provided with an installation component.

[0040] Reference Figure 2 - Figure 4The cam 33 is fixed to the upper end of the support frame 31 so as to prevent the cam 33 from sliding out of the support frame 31. The cam 33 is fixed to the upper end of the support frame 31 so as to prevent the cam 33 from sliding out of the support frame 31.

[0041] Reference Figure 3 - Figure 5 The lifting assembly includes a pull ring 41, which is convenient for pulling, and a counterweight block can be conveniently installed on the pull ring 41. A round rod 42 is fixedly connected to the lower surface of the pull ring 41. The round rod 42 and the pull ring 41 will move synchronously. The outer wall of the round rod 42 does not contact the sleeve 37. The inner wall of the sleeve 37 is elastically connected to a hollow tube 44 through a connecting spring 43. The bottom end of the hollow tube 44 is set to be conical.

[0042] Reference Figure 1 、 Figure 2 、 Figure 6 The mounting assembly includes a mounting block 51, and there are multiple groups of mounting blocks 51, which are evenly distributed on the outer walls of the upper mold 1 and the lower mold 2, and screw holes are provided on the upper surface of the mounting block 51, so that the upper mold 1 and the lower mold 2 can be fixed together using bolts. The lower surface of the upper mold 1 is provided with a second inclined surface 502, and the upper surface of the lower mold 2 is provided with a first inclined surface 501.

[0043] Reference Figure 2 - Figure 4The rear surface of the support rod 31 is fixedly connected to the top of the inner wall of the rear side of the upper mold 1, and the upper mold 1 provides support for the support rod 31, and the clamping block 34 is inserted into the inner wall of the clamping groove 301, which can limit the positioning block 32 and the positioning plate 36 to ensure stability. The lower surface of the clamping block 34 is set to an arc surface, which squeezes the arc surface of the clamping block 34 and the clamping block 34 will move upward. The clamping block 34 passes through and is slidably connected to the lower surface of the positioning block 32. One end of the compression spring 35 is fixedly connected to the upper surface of the clamping block 34, and the other end of the compression spring 35 is fixedly connected to the inner wall of the top of the positioning block 32. When the clamping block 34 moves upward, it squeezes the compression spring 35 to generate a reaction force. The clamping block 34 and the compression spring 35 There are multiple groups of compression springs 35, and multiple groups of card blocks 34 and compression springs 35 are evenly distributed in the positioning block 32 and the positioning plate 36. The insert block 39 passes through and is slidably connected to the front surface of the sleeve 37. One end of the limit spring 38 is fixedly connected to the rear surface of the insert block 39, and the other end of the limit spring 38 is fixedly connected to the inner wall of the rear side of the sleeve 37. When the insert block 39 moves backward, it will squeeze the limit spring 38 to generate a reaction force. The front surface of the insert block 39 is set to an arc surface. When the arc surface of the insert block 39 is squeezed, the insert block 39 will move backward. The insert block 39 is inserted into the inner wall of the slot 302. The slot 302 also has multiple groups, which are evenly distributed laterally on the inner wall of the front side of the positioning plate 36.

[0044] Reference Figure 3 - Figure 5 The hollow tube 44 passes through and is slidably connected to the lower surface of the sleeve 37, sliding longitudinally. One end of the connecting spring 43 is fixedly connected to the inner wall of the top of the sleeve 37, and the other end of the connecting spring 43 is fixedly connected to the upper surface of the hollow tube 44. When the hollow tube 44 moves downward, the connecting spring 43 will be stretched to generate a reaction force. The bottom end of the round rod 42 is fixedly connected to the top of the inner wall of the hollow tube 44, and the round rod 42 and the hollow tube 44 will move synchronously.

[0045] Reference Figure 1 - Figure 2 The mounting block 51 is fixedly connected to the front surface of the upper mold 1, the inclined surface 1 501 and the inclined surface 2 502 are fitted together, the inclined surface 1 501 is inclined toward the four sides of the lower mold 2, and the edge height is lower, so sand is not easy to stay on the inclined surface 1 501.

[0046] Working principle: When using this device, first prefabricate the sand mold. When prefabricate the lower sand mold, directly place the lower mold 2 flat, then place the parts in the lower mold 2, and then fill it with casting sand. After the casting sand is formed, the parts can be taken out. When prefabricate the upper sand mold, air vents and casting holes need to be reserved. The models of parts to be cast are different, so the positions of the reserved air vents and casting holes need to be adjusted.

[0047] When adjusting the pouring hole, just pull the positioning block 32 to move. During the movement, the arc surface of the card block 34 will be squeezed, and the card block 34 will retract into the positioning block 32 to release the obstruction and squeeze the compression spring 35 to generate a reaction force. When it moves to the appropriate position, release the positioning block 32, and the reaction force of the compression spring 35 will push the card block 34 and the card slot 301 to plug into form a limit.

[0048] When adjusting the air vent, directly pull the positioning plate 36 to move forward and backward. During the movement, the arc surface of the block 34 will be squeezed, and the block 34 will retract into the positioning block 32 to release the block and squeeze the compression spring 35 to generate a reaction force. When moving to the appropriate position, release the positioning block 32, and the reaction force of the compression spring 35 will push the block 34 and the card slot 301 to engage with the positioning plate 36, and then adjust the lateral position of the air vent according to needs. When adjusting, pull the sleeve 37 to move laterally, so that the arc surface of the insertion block 39 is squeezed, and then drive the insertion block 39 to move backward and retract into the sleeve 37 to release the limit. When the insertion block 39 moves backward and retracts the sleeve 37, it will squeeze the limit spring 38 to generate a reaction force. When moving to the appropriate position, release the sleeve 37, and the reaction force of the limit spring 38 will push the insertion block 39 to move forward and engage with the slot 302 to form a limit.

[0049] When the sleeve 37 is adjusted to the appropriate position, the part is placed in the middle of the upper mold 1, and then the insertion rod 33 is inserted into the positioning block 32 so that the lower surface of the insertion rod 33 contacts the part, and a counterweight block is placed on the pull ring 41 to drive the hollow tube 44 to move downward and contact the surface of the part, and stretch the connecting spring 43 to generate a reaction force, and then fill the casting sand. After the casting sand is formed, the part is taken out, and then the upper mold 1 and the lower mold 2 are spliced.

[0050] During the splicing process, the first bevel 501 and the second bevel 502 will fit together to maintain a seal, and the threaded holes on the mounting block 51 will be aligned. At this time, the upper mold 1 and the lower mold 2 can be fixed with bolts, and then the counterweight block and the insertion rod 33 can be removed. Then, molten aluminum is poured from the hole formed by the insertion rod 33. After the counterweight block is removed, the connecting spring 43 will pull the hollow tube 44 upward. During the pouring of molten aluminum, excess air will be pressed out and discharged from the sleeve 37.

[0051] After the aluminum liquid is formed, the bolts are unscrewed, and then the upper mold 1 and the lower mold 2 are separated and the workpiece is taken out.

[0052] Finally, it should be noted that the above 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 make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A die for processing aluminum castings, comprising a lower die (2), characterized in that: The upper surface of the lower mold (2) is provided with an upper mold (1), and the upper surface of the upper mold (1) is provided with a positioning mechanism, the positioning mechanism includes an adjustment component and a lifting component, and the lower surface of the upper mold (1) is provided with a mounting component, the adjustment component includes a support rod (31), the outer wall of the support rod (31) is slidably connected to a positioning block (32), the right end of the upper surface of the positioning block (32) is plugged with an insertion rod (33), the inner wall of the positioning block (32) is elastically connected to a card block (34) through a compression spring (35), the upper surface of the support rod (31) is provided with a card slot (301), the outer wall of the support rod (31) is slidably connected to a positioning plate (36), the lower surface of the positioning plate (36) is slidably connected to a sleeve (37), the inner wall of the sleeve (37) is elastically connected to an insertion block (39) through a limit spring (38), and the inner wall of the front side of the positioning plate (36) is provided with a slot (302).

2. The aluminum casting processing mold according to claim 1, characterized in that: The lifting assembly comprises a pull ring (41), the lower surface of the pull ring (41) is fixedly connected to a round rod (42), and the inner wall of the sleeve (37) is elastically connected to a hollow tube (44) via a connecting spring (43).

3. The aluminum casting processing mold according to claim 1, characterized in that: The mounting assembly comprises a mounting block (51), a second inclined surface (502) is provided on the lower surface of the upper die (1), and a first inclined surface (501) is provided on the upper surface of the lower die (2).

4. The aluminum casting processing mold according to claim 1, characterized in that: The rear surface of the support rod (31) is fixedly connected to the top end of the rear inner wall of the upper mold (1), the clamping block (34) is inserted into the inner wall of the clamping slot (301), and the lower surface of the clamping block (34) is set to an arc surface.

5. The aluminum casting processing mold according to claim 1, characterized in that: The clamping block (34) passes through and is slidably connected to the lower surface of the positioning block (32), one end of the compression spring (35) is fixedly connected to the upper surface of the clamping block (34), and the other end of the compression spring (35) is fixedly connected to the inner wall of the top end of the positioning block (32).

6. The aluminum casting processing mold according to claim 1, characterized in that: The clamping blocks (34) and compression springs (35) are provided in multiple groups, and the multiple groups of clamping blocks (34) and compression springs (35) are evenly distributed in the positioning block (32) and the positioning plate (36).

7. The aluminum casting processing mold according to claim 1, characterized in that: The insert block (39) passes through and is slidably connected to the front surface of the sleeve (37), one end of the limit spring (38) is fixedly connected to the rear surface of the insert block (39), and the other end of the limit spring (38) is fixedly connected to the inner wall of the rear side of the sleeve (37).

8. The aluminum casting processing mold according to claim 1, characterized in that: The front surface of the insert block (39) is configured as an arc surface, and the insert block (39) is inserted into the inner wall of the slot (302).

9. The aluminum casting processing mold according to claim 2, characterized in that: The hollow tube (44) passes through and is slidably connected to the lower surface of the sleeve (37), one end of the connecting spring (43) is fixedly connected to the inner wall of the top end of the sleeve (37), the other end of the connecting spring (43) is fixedly connected to the upper surface of the hollow tube (44), and the bottom end of the round rod (42) is fixedly connected to the top end of the inner wall of the hollow tube (44).

10. The aluminum casting processing mold according to claim 3, characterized in that: The mounting block (51) is fixedly connected to the front surface of the upper mold (1), and the first inclined surface (501) and the second inclined surface (502) are in contact with each other.

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