A processing jig for a thin-walled die casting product

Abstract

The utility model discloses a kind of processing fixtures of thin-wall die casting product, including base, two symmetrical installation frames are equipped on the base, two The installation frame is used to support die casting, fixed limiting mechanism is equipped on the base to limit die casting, the fixed limiting mechanism is equipped with two fixed ends, each The fixed end is equipped with secondary limiting mechanism, the secondary limiting mechanism is slidably connected between fixed end, fixed piece is equipped on the secondary limiting mechanism to the side wall of die casting Fixed, the fixed piece and secondary limiting mechanism can be detachably connected. When the utility model is fixed to die casting, different types of fixed mode can be selected according to the type of thin-wall in die casting.

Description

Technical Field

[0001] This utility model relates to the field of die casting processing technology, and in particular to a processing fixture for thin-walled die casting products. Background Technology

[0002] In modern manufacturing, thin-walled die-cast parts are widely used in various fields such as automobile manufacturing, aerospace, and electronic communications due to their advantages of light weight, high production efficiency, and low cost. Taking the automotive industry as an example, thin-walled die-cast parts can be used to manufacture key components such as engine blocks and transmission housings, effectively reducing the overall vehicle weight and improving fuel economy. In the aerospace field, they can meet the lightweight design requirements of aircraft and enhance flight performance. However, the inherent structural characteristics of thin-walled die-cast parts bring many processing challenges. Because die-cast parts have thin walls, typically between 1 and 3 mm or even thinner, they are prone to deformation and vibration when subjected to cutting forces, clamping forces, and other external forces during processing, severely affecting the dimensional accuracy and surface quality of the product.

[0003] There are many types of thin-walled die-cast parts, such as regular and irregular thin-walled die-cast parts. However, when using existing machining fixtures to fix thin-walled die-cast parts of different types, the type of fixation of the machining fixture for thin-walled parts cannot be adjusted according to the type of die-cast part. This results in poor fixation of the die-cast parts and makes it easy for dimensional deviations to occur during the machining process due to positioning errors, which cannot meet the high-precision design requirements. Utility Model Content

[0004] The purpose of this utility model is to provide a machining fixture for thin-walled die-cast products to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A machining fixture for thin-walled die-cast parts includes a base with two symmetrically arranged mounting brackets for supporting the die-cast parts. The base also includes a fixing and limiting mechanism for positioning the die-cast parts. Each fixing end has a secondary limiting mechanism that slides between itself and the fixing end. The secondary limiting mechanism has a fixing element for fixing the sidewall of the die-cast parts, and the fixing element is detachably connected to the secondary limiting mechanism.

[0007] A further technical solution includes a fixed motor, a rotating plate, two slide rails, two sliding seats, and two rotating wheels. The fixed motor is located on the base, and the middle position of the rotating plate is located on the main shaft of the fixed motor. The two slide rails are symmetrically arranged on the base, and the two sliding seats are slidably engaged with the two slide rails respectively. Both ends of the rotating plate are provided with rotating grooves, and the two rotating wheels are rotatably connected to the two sliding seats respectively, and the rotating wheels rotate within the rotating grooves.

[0008] A further technical solution is that the sliding seat is equipped with a lifting electric cylinder, the lifting electric cylinder is vertically installed inside the sliding seat, and a fixing plate is provided on the telescopic end of the lifting electric cylinder.

[0009] In a further technical solution, the fixing plate is provided with a fixing seat, the bottom of the fixing seat is provided with two sliders, the fixing plate is provided with a sliding groove that slides with the sliders, the slider is provided with a locking screw, and the slider is threadedly connected to the fixing plate through the locking screw.

[0010] A further technical solution includes a secondary limiting mechanism comprising a mounting plate, a secondary fixing electric cylinder, a telescopic rod, and a limiting plate. The fixing base has a mounting groove, and the mounting plate is located within the mounting groove. The secondary fixing electric cylinder is horizontally connected to the mounting plate. The telescopic rod is located on the telescopic end of the secondary fixing electric cylinder. The limiting plate has four sliding blocks, and the limiting plate is slidably connected to the side wall of the mounting groove via the four sliding blocks. The limiting plate has a sleeve, and the telescopic rod is inserted into the sleeve. The sleeve contains a locking pin for locking the telescopic rod.

[0011] In a further technical solution, the fixing component includes several modular suction cup fixing heads disposed on the limiting plate.

[0012] A further technical solution includes three equally spaced connecting plates, each connecting plate having two connecting rods, each connecting plate having an insertion hole for inserting the connecting rods, the side wall of the limiting plate having a threaded locking screw, the connecting rod having a threaded hole for threaded connection with the locking screw, and the connecting plate having an airbag-type fixing head.

[0013] The beneficial effects of this utility model are:

[0014] This invention allows for the selection of different fixing methods based on the type of thin-walled part when fixing die-cast parts. When fixing die-cast parts, either an airbag-type or modular suction cup fixing head can be selected according to the thin-walled type, achieving precise adaptation and efficient processing. The airbag-type fixing head, through the inflation and expansion of an elastic airbag, can adapt to circular, irregular curved surfaces, and extremely thin walls (wall thickness ≤ 1mm), uniformly distributing clamping force through surface contact to avoid deformation or surface damage caused by localized stress concentration. The modular suction cup fixing head, through a combination of rigid and flexible suction cups, accurately positions square, raised, or other regular or mixed contour thin-walled parts. The rigid module ensures positioning accuracy, while the flexible module protects vulnerable areas. It also supports quick module replacement, is compatible with various workpiece types, reduces fixture replacement costs and time, and improves production flexibility. Both methods utilize non-rigid contact as their core, addressing the pain points of thin-walled parts being "easily deformed and difficult to position."

[0015] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0016] Figure 1 : A three-dimensional structural diagram of this utility model.

[0017] Figure 2 Side view of this utility model.

[0018] Figure 3 : A three-dimensional structural diagram of the fixed limiting mechanism of this utility model.

[0019] Figure 4 Schematic diagram of a partial three-dimensional structure of the fixing and limiting mechanism of this utility model. Figure 1 .

[0020] Figure 5 Schematic diagram of a partial three-dimensional structure of the fixing and limiting mechanism of this utility model. Figure 2 .

[0021] Figure 6 : A three-dimensional structural diagram of the secondary limiting mechanism of this utility model.

[0022] Figure 7 Schematic diagram of the three-dimensional structure of the fastener of this utility model Figure 1 .

[0023] Figure 8 Schematic diagram of the three-dimensional structure of the fastener of this utility model Figure 2 .

[0024] Reference numerals: Base 1, Mounting bracket 11, Fixed limiting mechanism 2, Fixed motor 21, Rotating plate 22, Slide rail 23, Sliding seat 24, Rotating wheel 25, Rotating groove 26, Lifting electric cylinder 27, Fixed plate 28, Fixed seat 29, Slider 290, Slide groove 291, Locking screw 292, Secondary limiting mechanism 3, Mounting plate 31, Secondary fixed electric cylinder 32, Telescopic rod 33, Limiting plate 34, Sliding block 35, Sleeve 36, Pin 37, Fixing component 4, Modular suction cup fixing head 41, Connecting plate 42, Connecting rod 43, Locking screw 44, Screw hole 45, Airbag type fixing head 46. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0026] Please refer to Figure 1-8 As shown; this utility model provides a processing fixture for thin-walled die-cast products: a processing fixture for thin-walled die-cast products includes a base 1, on which two symmetrically arranged mounting brackets 11 are provided for supporting the die-cast parts. The base 1 is provided with a fixing limiting mechanism 2 for limiting the die-cast parts. The fixing limiting mechanism 2 has two fixed ends, and each fixed end is provided with a secondary limiting mechanism 3. The secondary limiting mechanism 3 is slidably engaged with the fixed end. The secondary limiting mechanism 3 is provided with a fixing member 4 for fixing the side wall of the die-cast parts. The fixing member 4 is detachably connected to the secondary limiting mechanism 3.

[0027] When machining and fixing die-cast parts, different types of die-cast parts are placed on two mounting brackets 11. The two mounting brackets 11 support and carry the die-cast parts. The fixing and limiting mechanism 2 drives the two fixing ends to work, and the secondary limiting mechanism 3 fixes the die-cast parts. When fixing the die-cast parts, different types of fixing parts 4 can be selected according to the type of thin wall to accommodate the fixing of different types of thin-walled die-cast parts during machining.

[0028] In this embodiment, refer to Figure 3 As shown, the fixed limiting mechanism 2 includes a fixed motor 21, a rotating plate 22, two slide rails 23, two sliding seats 24, and two rotating wheels 25. The fixed motor 21 is located on the base 1. The middle position of the rotating plate 22 is located on the main shaft of the fixed motor 21. The two slide rails 23 are symmetrically arranged on the base 1. The two sliding seats 24 are slidably engaged with the two slide rails 23 respectively. Both ends of the rotating plate 22 are provided with rotating grooves 26. The two rotating wheels 25 are rotatably connected to the two sliding seats 24 respectively, and the rotating wheels 25 rotate within the rotating grooves 26.

[0029] When fixing the die-cast part, the fixing motor 21 drives the rotating plate 22 to rotate, which in turn drives the two rotating grooves 26 on the rotating plate 22 to rotate on the two rotating wheels 25 respectively. This causes the two sliding seats 24 to slide on the two slide rails 23 respectively, thereby causing the two sliding seats 24 to move away from each other. This fixes and limits the position of the die-cast part, preventing the position of the die-cast part from shifting or shaking during the processing of the die-cast part, which would affect the accuracy of the processing of the die-cast part.

[0030] In this embodiment, refer to Figure 4 and Figure 5 As shown, the sliding seat 24 is provided with a lifting electric cylinder 27, which is vertically installed inside the sliding seat 24, and a fixing plate 28 is provided on the telescopic end of the lifting electric cylinder 27.

[0031] The lifting electric cylinder 27 drives the fixed plate 28 to move up and down. The up and down movement of the fixed plate 28 will drive the fixed part 4 to move up and down. Depending on the type of thin wall of the die casting, different positions of the thin wall of the die casting can be fixed and limited.

[0032] In this embodiment, refer to Figure 5 As shown, the fixing plate 28 is provided with a fixing seat 29, and the bottom of the fixing seat 29 is provided with two sliders 290. The fixing plate 28 is provided with a sliding groove 291 that slides with the sliders 290. The sliders 290 are provided with a locking screw 292, and the sliders 290 are threadedly connected to the fixing plate 28 through the locking screw 292.

[0033] When the fixed seat 29 needs to be replaced, the locking screw 292 can be rotated off the slider 290 to loosen it from the fixed plate 28, thereby removing the fixed seat 29 from the fixed plate 28 for replacement. When the fixed seat 29 is installed on the fixed plate 28, the locking screw 292 can be rotated to lock the position of the slider 290 on the fixed plate 28, thereby fixing the fixed seat 29 and the fixed plate 28.

[0034] In this embodiment, refer to Figure 6 As shown, the secondary limiting mechanism 3 includes a mounting plate 31, a secondary fixing electric cylinder 32, a telescopic rod 33, and a limiting plate 34. The fixing base 29 has a mounting groove, and the mounting plate 31 is located in the mounting groove. The secondary fixing electric cylinder 32 is horizontally connected to the mounting plate 31. The telescopic rod 33 is located on the telescopic end of the secondary fixing electric cylinder 32. The limiting plate 34 has four sliding blocks 35, and the limiting plate 34 is slidably connected to the side wall of the mounting groove through the four sliding blocks 35. The limiting plate 34 has a sleeve 36, and the telescopic rod 33 is inserted into the sleeve 36. The sleeve 36 has a locking pin 37 for locking the telescopic rod 33.

[0035] When fixing different types of die-cast parts, the pin 37 can be pulled out from the telescopic rod 33 and sleeve 36, and another limiting plate 34 can be replaced. When fixing the die-cast part, the secondary fixing electric cylinder 32 works to drive the telescopic rod 33 to work, thereby driving the limiting plate 34 to move horizontally in the mounting groove through the four sliding blocks 35, moving the position of the fixing part 4 to the side of the die-cast part, and fixing the die-cast part that needs to be processed.

[0036] In this embodiment, refer to Figure 8 As shown, the fixing component 4 includes several modular suction cup fixing heads 41 disposed on the limiting plate 34; the modular suction cup fixing heads 41 are detachably connected to the limiting plate 34. In use, multiple small vacuum suction cups are combined into an array to fix the die-cast parts by vacuum adsorption. Applicable scenarios include: thin-walled parts with flat surfaces, such as flat die-cast parts and heat sinks; thin-walled parts made of non-ferromagnetic materials, such as aluminum alloys and magnesium alloys. Advantages: non-contact fixing, no mechanical clamping force, suitable for extremely thin walls, wall thickness <1mm, or easily scratched surfaces.

[0037] In this embodiment, refer to Figure 7 As shown, the fixing member 4 includes three equally spaced connecting plates 42, each connecting plate 42 is provided with two connecting rods 43, the connecting plate 42 is provided with an insertion hole for inserting into the connecting rod 43, the connecting rod 43 is provided with a screw hole 45 for threaded connection with the locking screw 44, the connecting plate 42 is provided with an airbag type fixing head 46, and the side wall of the limiting plate 34 is provided with a threaded locking screw 44.

[0038] When in use, the connecting plate 42 is inserted into the insertion hole of the connecting plate 42 through two connecting rods 43, and the locking screw 44 is rotated into the screw hole 45 inside the connecting rod 43, thereby fixing the position of the airbag fixing head 46. When fixing the die-casting part, the inside is an inflatable airbag, which achieves flexible clamping through air pressure expansion.

[0039] Applicable scenarios: Irregularly curved thin-walled parts, such as turbocharger housings; complex structural parts with multiple curvatures and easy deformation. Advantages: Adapts to workpiece contours, provides uniform contact pressure, and the clamping force can be controlled by adjusting the air pressure.

[0040] When fixing die-cast parts, different fixing methods can be selected according to the type of thin wall within the die-cast part. For example, when fixing die-cast parts, either an airbag-type or modular suction cup fixing head 41 can be selected based on the thin wall type to achieve precise adaptation and efficient processing. The airbag-type fixing head 46 expands through the inflation of an elastic airbag, adapting to circular, irregular curved surfaces, and extremely thin walls ≤1mm thick. It evenly distributes clamping force through surface contact, avoiding deformation or surface damage caused by localized stress concentration. The modular suction cup fixing head 41, through a combination of rigid and flexible suction cups, accurately positions square, raised, or other regular or mixed contour thin-walled parts. The rigid module ensures positioning accuracy, while the flexible module protects vulnerable areas. It also supports quick module replacement, is compatible with various workpiece types, reduces fixture replacement costs and time, and improves production flexibility. Both methods utilize non-rigid contact as their core, addressing the pain points of thin-walled parts being "easily deformed and difficult to position."

[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A machining fixture for thin-walled die-cast products, characterized in that: Includes a base (1), on which two symmetrically arranged mounting brackets (11) are provided. The two mounting brackets (11) are used to support the die casting. The base (1) is provided with a fixed limiting mechanism (2) for limiting the die casting. The fixed limiting mechanism (2) is provided with two fixed ends. Each fixed end is provided with a secondary limiting mechanism (3). The secondary limiting mechanism (3) is slidably engaged with the fixed end. The secondary limiting mechanism (3) is provided with a fixing member (4) for fixing the side wall of the die casting. The fixing member (4) is detachably connected to the secondary limiting mechanism (3).

2. The machining fixture for thin-walled die-cast products according to claim 1, characterized in that: The fixed limiting mechanism (2) includes a fixed motor (21), a rotating plate (22), two slide rails (23), two sliding seats (24), and two rotating wheels (25). The fixed motor (21) is located on the base (1). The middle position of the rotating plate (22) is located on the main shaft of the fixed motor (21). The two slide rails (23) are symmetrically arranged on the base (1). The two sliding seats (24) are respectively slidably engaged with the two slide rails (23). Both ends of the rotating plate (22) are provided with rotating grooves (26). The two rotating wheels (25) are respectively rotatably connected to the two sliding seats (24). The rotating wheels (25) rotate in the rotating grooves (26).

3. The machining fixture for thin-walled die-cast products according to claim 2, characterized in that: The sliding seat (24) is provided with a lifting electric cylinder (27), which is vertically installed inside the sliding seat (24). The extension end of the lifting electric cylinder (27) is provided with a fixing plate (28).

4. The machining fixture for thin-walled die-cast products according to claim 3, characterized in that: The fixing plate (28) is provided with a fixing seat (29), and the bottom of the fixing seat (29) is provided with two sliders (290). The fixing plate (28) is provided with a sliding groove (291) that slides with the sliders (290). The sliders (290) are provided with a locking screw (292). The sliders (290) are threadedly connected to the fixing plate (28) through the locking screw (292).

5. The machining fixture for thin-walled die-cast products according to claim 4, characterized in that: The secondary limiting mechanism (3) includes a mounting plate (31), a secondary fixing electric cylinder (32), a telescopic rod (33), and a limiting plate (34). The fixing seat (29) has a mounting groove, the mounting plate (31) is located in the mounting groove, the secondary fixing electric cylinder (32) is horizontally connected to the mounting plate (31), the telescopic rod (33) is located on the telescopic end of the secondary fixing electric cylinder (32), the limiting plate (34) has four sliding blocks (35), the limiting plate (34) is slidably connected to the side wall of the mounting groove through the four sliding blocks (35), the limiting plate (34) has a sleeve (36), the telescopic rod (33) is inserted into the sleeve (36), and the sleeve (36) has a locking pin (37) for locking the telescopic rod (33).

6. The machining fixture for thin-walled die-cast products according to claim 5, characterized in that: The fastener (4) includes several modular suction cup fixing heads (41) disposed on the limiting plate (34).

7. The machining fixture for thin-walled die-cast products according to claim 5, characterized in that: The fastener (4) includes three equally spaced connecting plates (42), each connecting plate (42) is provided with two connecting rods (43), the connecting plate (42) is provided with insertion holes for insertion into the connecting rods (43), the side wall of the limiting plate (34) is provided with a threaded locking screw (44), the connecting rod (43) is provided with a screw hole (45) for threaded connection with the locking screw (44), and the connecting plate (42) is provided with an airbag type fixing head (46).

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