Quick die changing and positioning device for aluminum alloy die casting

Abstract

The utility model discloses an aluminum alloy die casting quick die change positioning device which comprises a positioning structure and a fixing device, the outer wall of the positioning structure is connected with a die holder in a sliding mode, and the outer wall of the bottom of the fixing device is fixedly connected with the outer wall of the top of the positioning structure. According to the fixing device and the positioning structure, preliminary positioning of the die holder is achieved through sliding fit of the positioning pin and the positioning hole, the fixing device is driven to rapidly move to a proper position in cooperation with the two-way threaded rod, and the die holder can be fixed through cooperation of the cam, the pressing rod, the fixing block and other structures. The mounting and dismounting process of the die holder is simplified, stable extrusion force can be applied to the side face of the die holder by rotating and extruding a rubber pad through a cam, and a multi-point and multi-direction fastening effect is formed by pulling a fixing block to make close contact with the outer wall of the die holder in combination with an extension spring; and the mounting requirements of die holders with different sizes and specifications can be met.

Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy die casting mold changing and positioning technology, specifically to a quick mold changing and positioning device for aluminum alloy die castings. Background Technology

[0002] In the production process of aluminum alloy die castings, the replacement of die casting molds is a frequent and critical operation, and its efficiency and quality directly affect product quality and the company's production benefits.

[0003] Traditional methods for positioning aluminum alloy die-casting parts during mold changing often involve fixing the mold to the die-casting machine using bolts. This method has some drawbacks: the bolt tightening and loosening process is cumbersome and time-consuming, requiring operators to use specialized tools to tighten or loosen a large number of bolts one by one, which significantly prolongs the downtime of the die-casting production line, resulting in low production efficiency and making it difficult to meet the needs of enterprises for high-efficiency production. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a quick mold changing and positioning device for aluminum alloy die castings, which solves the problem of cumbersome and time-consuming bolt tightening and disassembly processes during traditional mold changing for aluminum alloy die castings.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A quick mold changing and positioning device for aluminum alloy die castings includes: a positioning structure, wherein a mold base is slidably connected to the outer wall of the positioning structure; and a fixing device, wherein the outer wall of the bottom of the fixing device is fixedly connected to the outer wall of the top of the positioning structure; the fixing device includes a fixing plate, wherein a rotating groove is formed on the outer wall of the fixing plate, a cam is rotatably connected to the inner wall of the rotating groove, a pressure rod is fixedly connected to the outer wall of the cam, clamping grooves are symmetrically formed on the outer wall of the side of the fixing plate, a sliding rod is fixedly connected to the inner wall of the clamping groove, a fixing block is slidably connected to the outer wall of the sliding rod, a tension spring is fixedly connected to the outer wall of the fixing block, a limit plate is rotatably connected to the outer wall of the fixing block, and a pull ring is fixedly connected to the outer wall of the limit plate.

[0009] Preferably, the outer wall of the limiting plate is in contact with the outer wall of the fixing plate, and the outer wall of the tension spring on the side away from the fixing block is fixedly connected to the inner wall of the clamping groove. By rotating the limiting plate through the pull ring, it is separated from the outer wall of the fixing plate. At this time, the fixing block slides along the outer wall of the slide rod under the tension of the tension spring.

[0010] Preferably, the positioning structure includes a positioning base, the outer wall of the top of the positioning base is symmetrically provided with sliding grooves, the inner wall of the sliding groove is rotatably connected with a bidirectional threaded rod, the outer wall of the bidirectional threaded rod is threadedly connected with a slider, and the outer wall of the top of the positioning base is fixedly connected with a positioning pin.

[0011] Preferably, the positioning pins are arranged in an array along the outer wall of the top of the positioning base, the outer wall of the slider is slidably connected to the inner wall of the groove, and the outer wall of the top of the slider is fixedly connected to the outer wall of the bottom of the fixing plate. When the bidirectional threaded rod is rotated, since the bidirectional threaded rod is threadedly connected to the slider and the slider is fixedly connected to the fixing plate, the slider will slide in the groove under the drive of the bidirectional threaded rod, thereby driving the fixing device to move.

[0012] Preferably, the outer wall of the bottom of the mold base is provided with positioning holes, and rubber pads are symmetrically fixedly connected to the outer wall of the side of the mold base.

[0013] Preferably, the inner wall of the positioning hole is slidably connected to the outer wall of the positioning pin. The mold base is placed on the positioning structure, so that the positioning hole on the bottom outer wall of the mold base is aligned with the positioning pin on the top outer wall of the positioning base. Then the mold base slides down along the positioning pin. Through the sliding connection between the positioning pin and the positioning hole, the initial positioning of the mold base on the positioning base is achieved. The outer wall of the rubber pad is in contact with the outer wall of the cam, and the outer wall of the mold base is in contact with the outer wall of the fixing block.

[0014] (III) Beneficial Effects

[0015] This utility model provides a quick mold changing and positioning device for aluminum alloy die castings. It has the following beneficial effects:

[0016] (I) This positioning structure achieves the initial positioning of the mold base through the sliding cooperation of the positioning pin and the positioning hole. With the help of the bidirectional threaded rod, the fixing device is quickly moved to the appropriate position. Combined with the linkage operation of the cam, pressure rod, fixing block and other structures, the installation and disassembly process of the mold base is greatly simplified. Compared with the traditional mold changing method, it reduces the cumbersome bolt tightening steps, enables the rapid disassembly and replacement of the mold, effectively shortens the downtime of the die casting production line, significantly improves production efficiency, and meets the needs of enterprises for high-efficiency production.

[0017] (II) This fixing device, by rotating the cam to squeeze the rubber pad, can apply a stable squeezing force to the side of the mold base. Combined with the tension spring pulling the fixing block to make tight contact with the outer wall of the mold base, it forms a multi-point, multi-directional fastening effect. With the design of the bidirectional threaded rod and slider in the positioning structure, the position of the fixing device can be flexibly adjusted to meet the installation requirements of mold bases of different sizes and specifications. There is no need to equip different molds with special mold changing positioning devices, which reduces equipment procurement costs and management difficulty, and improves the versatility and production flexibility of the equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the positioning base of this utility model;

[0020] Figure 3 This is a schematic diagram of the fixing device of this utility model;

[0021] Figure 4 This is a schematic diagram of the positioning structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the mold base of this utility model.

[0023] In the diagram: 1. Positioning structure; 11. Positioning base; 12. Slide groove; 13. Two-way threaded rod; 14. Slider; 15. Positioning pin; 2. Fixing device; 21. Fixing plate; 22. Rotary groove; 23. Cam; 24. Pressure rod; 25. Clamping groove; 26. Slide rod; 27. Fixing block; 28. Tension spring; 29. ​​Limiting plate; 291. Pull ring; 3. Mold base; 31. Positioning hole; 32. Rubber pad. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5 This utility model provides a technical solution: a quick mold changing and positioning device for aluminum alloy die castings, comprising: a positioning structure 1, with a mold base 3 slidably connected to the outer wall of the positioning structure 1, and further comprising: a fixing device 2, with the bottom outer wall of the fixing device 2 fixedly connected to the top outer wall of the positioning structure 1; the fixing device 2 comprises a fixing plate 21, with a rotating groove 22 on the outer wall of the fixing plate 21, a cam 23 rotatably connected to the inner wall of the rotating groove 22, a pressure rod 24 fixedly connected to the outer wall of the cam 23, clamping grooves 25 symmetrically opened on the outer wall of the side of the fixing plate 21, a sliding rod 26 fixedly connected to the inner wall of the clamping groove 25, a fixing block 27 slidably connected to the outer wall of the sliding rod 26, a tension spring 28 fixedly connected to the outer wall of the fixing block 27, a limit plate 29 rotatably connected to the outer wall of the fixing block 27, and a pull ring 291 fixedly connected to the outer wall of the limit plate 29.

[0026] The outer wall of the limiting plate 29 is in contact with the outer wall of the fixing plate 21. The outer wall of the tension spring 28 on the side away from the fixing block 27 is fixedly connected to the inner wall of the clamping groove 25. The limiting plate 29 is rotated by the pull ring 291 to separate it from the outer wall of the fixing plate 21. At this time, the fixing block 27 slides along the outer wall of the slide rod 26 under the pulling force of the tension spring 28.

[0027] The positioning structure 1 includes a positioning base 11. The outer wall of the top of the positioning base 11 is symmetrically provided with a sliding groove 12. The inner wall of the sliding groove 12 is rotatably connected with a bidirectional threaded rod 13. The outer wall of the bidirectional threaded rod 13 is threadedly connected with a slider 14. The outer wall of the top of the positioning base 11 is fixedly connected with a positioning pin 15.

[0028] Positioning pins 15 are arranged in an array along the outer wall of the top of the positioning base 11. The outer wall of the slider 14 is slidably connected to the inner wall of the slide groove 12. The outer wall of the top of the slider 14 is fixedly connected to the outer wall of the bottom of the fixing plate 21. When the bidirectional threaded rod 13 is rotated, since the bidirectional threaded rod 13 is threadedly connected to the slider 14 and the slider 14 is fixedly connected to the fixing plate 21, the slider 14 will slide in the slide groove 12 under the drive of the bidirectional threaded rod 13, thereby driving the fixing device 2 to move.

[0029] The outer wall at the bottom of the mold base 3 is provided with positioning holes 31, and rubber pads 32 are symmetrically fixed to the outer wall on the side of the mold base 3.

[0030] The inner wall of the positioning hole 31 is slidably connected to the outer wall of the positioning pin 15. The mold base 3 is placed on the positioning structure 1, so that the positioning hole 31 opened on the bottom outer wall of the mold base 3 is aligned with the positioning pin 15 on the top outer wall of the positioning base 11. Then the mold base 3 slides down along the positioning pin 15. Through the sliding connection between the positioning pin 15 and the positioning hole 31, the initial positioning of the mold base 3 on the positioning base 11 is achieved. The outer wall of the rubber pad 32 is in contact with the outer wall of the cam 23, and the outer wall of the mold base 3 is in contact with the outer wall of the fixing block 27.

[0031] In use, the positioning structure 1 is installed on the die-casting device using corner brackets. Then, the mold base 3 is positioned and fixed and can be quickly disassembled and replaced through the cooperation of the fixing device 2 and the positioning structure 1.

[0032] When installing the mold base 3, place the mold base 3 on the positioning structure 1, aligning the positioning hole 31 on the bottom outer wall of the mold base 3 with the positioning pin 15 on the top outer wall of the positioning base 11. Then, slide the mold base 3 down along the positioning pin 15. Through the sliding connection between the positioning pin 15 and the positioning hole 31, the mold base 3 is initially positioned on the positioning base 11. Next, the bidirectional threaded rod 13 can be rotated. Since the bidirectional threaded rod 13 is threadedly connected to the slider 14, and the slider 14 is fixedly connected to the fixing plate 21, the slider 14 will slide in the groove 12 under the drive of the bidirectional threaded rod 13, thereby driving the fixing device 2 toward the mold base. 3. Move to the appropriate position. At this time, the rubber pad 32 on the side of the mold base 3 is opposite to the outer wall of the cam 23. Then push the pressure rod 24 to rotate the cam 23. Since the cam 23 is rotatably connected to the inner wall of the rotating groove 22, when the cam 23 rotates, its outer wall squeezes the rubber pad 32, thereby squeezing and fixing the side of the mold base 3. Then rotate the limiting plate 29 through the pull ring 291 to separate it from the outer wall of the fixing plate 21. At this time, the fixing block 27 slides along the outer wall of the slide rod 26 under the tension of the tension spring 28 and contacts the outer wall of the mold base 3, so that the mold base 3 is firmly fixed on the positioning base 11.

[0033] Conversely, when disassembly and replacement are required, the fixing block 27 is driven by the pull ring 291 to slide outward from the groove 25 along the outer wall of the slide rod 26, thereby separating the fixing block 27 from the outer wall of the mold base 3. Then, the limiting plate 29 is rotated in the opposite direction to return to the position in contact with the outer wall of the fixing plate 21, limiting the fixing block 27. Next, the pressure rod 24 is pushed in the opposite direction to make the cam 23 rotate in the opposite direction. The pressure of its outer wall on the rubber pad 32 gradually decreases until it disappears. The rubber pad 32 is no longer squeezed by the cam 23, and the pressure on the side of the mold base 3 is also relieved. Then, the bidirectional threaded rod 13 is rotated. Because the bidirectional threaded rod 13 and the... The slider 14 is threaded and fixedly connected to the fixing plate 21. The slider 14 will slide in the slide groove 12 under the drive of the bidirectional threaded rod 13, thereby driving the fixing device 2 to move away from the mold base 3, so that the cam 23 and the rubber pad 32 are completely separated. Finally, the mold base 3 is lifted up. Since the mold base 3 is no longer fixed by the fixing device 2, and the positioning pin 15 and the positioning hole 31 are only slidably connected, the mold base 3 can easily slide up along the positioning pin 15, so that the positioning hole 31 and the positioning pin 15 are separated, thereby removing the mold base 3 from the positioning base 11 and completing the entire disassembly process.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rapid mold change positioning device for aluminum alloy die castings comprising: The positioning structure (1) has a mold base (3) slidably connected to its outer wall, characterized in that it further includes a fixing device (2), wherein the outer wall of the bottom of the fixing device (2) is fixedly connected to the outer wall of the top of the positioning structure (1). The fixing device (2) includes a fixing plate (21), the outer wall of the fixing plate (21) is provided with a rotating groove (22), the inner wall of the rotating groove (22) is rotatably connected to a cam (23), the outer wall of the cam (23) is fixedly connected to a pressure rod (24), the outer wall of the side of the fixing plate (21) is symmetrically provided with clamping grooves (25), the inner wall of the clamping groove (25) is fixedly connected to a slide rod (26), the outer wall of the slide rod (26) is slidably connected to a fixing block (27), the outer wall of the fixing block (27) is fixedly connected to a tension spring (28), the outer wall of the fixing block (27) is rotatably connected to a limit plate (29), and the outer wall of the limit plate (29) is fixedly connected to a pull ring (291).

2. A rapid mold change positioning device for aluminum alloy die castings according to claim 1, characterized in that: The outer wall of the limiting plate (29) is in contact with the outer wall of the fixing plate (21), and the outer wall of the tension spring (28) on the side away from the fixing block (27) is fixedly connected to the inner wall of the clamping groove (25).

3. A rapid mold change positioning device for aluminum alloy die castings as defined in claim 1, wherein: The positioning structure (1) includes a positioning base (11), and the outer wall of the top of the positioning base (11) is symmetrically provided with a sliding groove (12). The inner wall of the sliding groove (12) is rotatably connected with a bidirectional threaded rod (13), and the outer wall of the bidirectional threaded rod (13) is threadedly connected with a slider (14). The outer wall of the top of the positioning base (11) is fixedly connected with a positioning pin (15).

4. A rapid mold change positioning device for aluminum alloy die castings according to claim 3, characterized in that: The positioning pins (15) are arranged in an array along the outer wall of the top of the positioning base (11), the outer wall of the slider (14) is slidably connected to the inner wall of the slide groove (12), and the outer wall of the top of the slider (14) is fixedly connected to the outer wall of the bottom of the fixing plate (21).

5. A rapid mold change positioning device for aluminum alloy die castings as defined in claim 1, wherein: The outer wall of the bottom of the mold base (3) is provided with a positioning hole (31), and rubber pads (32) are symmetrically fixedly connected to the outer wall of the side of the mold base (3).

6. A rapid mold change positioning device for aluminum alloy die castings according to claim 5, characterized in that: The inner wall of the positioning hole (31) is slidably connected to the outer wall of the positioning pin (15), the outer wall of the rubber pad (32) is in contact with the outer wall of the cam (23), and the outer wall of the mold base (3) is in contact with the outer wall of the fixing block (27).

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