Positioning and clamping device for automobile aluminum alloy die casting

Abstract

The utility model provides an automobile aluminum alloy die casting positioning and clamping device, and relates to the technical field of positioning and clamping devices, the automobile aluminum alloy die casting positioning and clamping device comprises a workbench, a supporting seat, a hinge seat, a rotating shaft and a clamping jaw, driving mechanisms are symmetrically arranged on the two sides of the workbench, and positioning mechanisms are symmetrically arranged on the two sides of the supporting seat; the clamping sleeve is inserted into the mounting hole along the inner wall of the mounting hole of the automobile aluminum alloy die casting base, the inner wall of the mounting hole firstly extrudes the top end of the clamping sleeve and the spring ring to contract inwards, and then the mounting hole of the automobile aluminum alloy die casting base is tensioned due to expansion of elastic force generated by the spring ring. An automobile aluminum alloy die casting is preliminarily fixed to the upper portion of a workbench, the output end of an air cylinder is hinged to the bottom end of a clamping jaw through a rotating arm, and the air cylinder can drive the clamping jaw to rotate with a rotating shaft as the circle center while driving the rotating arm to do telescopic motion and drives the clamping jaw to get close to the automobile aluminum alloy die casting; the clamping device is used for clamping the automobile aluminum alloy die casting above the workbench.

Description

Technical Field

[0001] This utility model relates to the field of positioning and clamping device technology, and in particular to a positioning and clamping device for automotive aluminum alloy die-casting parts. Background Technology

[0002] Automotive aluminum alloy die castings are aluminum alloy parts manufactured using the die casting process. They feature high precision, high strength, and lightweight characteristics. They are widely used in key parts of automobiles such as engines, chassis, and bodies, effectively reducing vehicle weight and improving fuel economy and power performance. Aluminum alloy die castings also have excellent heat dissipation and corrosion resistance, ensuring the stability and durability of automotive parts in complex environments. They are an indispensable and important material in modern automobile manufacturing.

[0003] In existing methods for fixing automotive aluminum alloy die-cast parts, the common approach is to use opposing clamps to bring two clamping blocks closer together to position the part. However, automotive aluminum alloy die-cast parts are often designed with irregular structures, resulting in gaps between the clamping blocks and the part. This lack of clamping around the outer ring of the die-cast part leads to poor stability during processing. Therefore, this invention proposes a positioning and clamping device for automotive aluminum alloy die-cast parts to solve the above problems. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a positioning and clamping device for automotive aluminum alloy die castings. This device solves the problem in the prior art where the opposing clamping method results in a gap between the clamping block and the automotive aluminum alloy die casting, leading to poor stability during processing due to insufficient clamping of the outer ring of the die casting.

[0005] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: a positioning and clamping device for automotive aluminum alloy die castings, including a worktable, a support base, a hinge base, a rotating shaft, and grippers. The top of the worktable is fixedly connected to the support base, and the two sides of the top of the worktable are symmetrically fixedly connected to the hinge base. Grippers are symmetrically connected to the two sides of the hinge base through the rotating shaft. The two sides of the worktable are symmetrically provided with driving mechanisms, and the two sides of the support base are symmetrically provided with positioning mechanisms.

[0006] A further improvement is made in that: the positioning mechanism includes a positioning block, a sleeve, a dividing groove, and a spring ring; positioning blocks are symmetrically arranged on both sides of the support base; a sleeve is provided on the top of the positioning block; the top of the sleeve is a conical head structure and has multiple dividing grooves distributed in a ring at equal intervals; and a spring ring is provided inside the sleeve.

[0007] A further improvement is that the positioning block has a sliding groove inside, and the sliding groove has a moving mechanism that matches the ferrule, and the positions of the ferrule and the gripper are offset from each other.

[0008] A further improvement is that the moving mechanism includes a slider and a threaded rod. The slider is slidably connected inside the slide groove, and the threaded rod is rotatably connected inside the slide groove. One end of the threaded rod passes through the inside of the slider and is threadedly connected to it. The top of the slider is fixedly connected to the bottom of the sleeve.

[0009] A further improvement is that the driving mechanism includes a hinge frame, a cylinder, and a rotating arm. A set of hinge frames are symmetrically arranged on both sides of the worktable. A cylinder is hinged to the bottom end of the hinge frame. A rotating arm is fixedly connected to the output end of the cylinder. One end of the rotating arm is hinged to the bottom end of the gripper.

[0010] A further improvement is that a bolt is inserted at the top of the hinge frame, and threaded holes are symmetrically provided on both sides of the worktable, with the bottom end of the bolt threadedly connected to the inner wall of the threaded hole.

[0011] A further improvement is that the workbench includes a top plate, a bottom plate, and columns. Columns are symmetrically and fixedly connected to both sides of the bottom plate, and the top plate is fixedly connected to the top of the columns.

[0012] The beneficial effects of this utility model are as follows: A ferrule is inserted into the mounting hole of the automotive aluminum alloy die-casting base. The inner wall of the mounting hole first compresses the top of the ferrule and the spring coil inward, and then expands due to the elastic force generated by the spring coil, tightening the mounting hole of the automotive aluminum alloy die-casting base. This initially fixes the automotive aluminum alloy die-casting above the worktable. The output end of the cylinder is hinged to the bottom end of the gripper via a rotating arm. Simultaneously, the cylinder drives the rotating arm to extend and retract, causing the gripper to rotate around the rotation axis, bringing it closer to the automotive aluminum alloy die-casting. This clamps the automotive aluminum alloy die-casting above the worktable, solving the problem in the prior art where a gap exists between the clamping block and the automotive aluminum alloy die-casting due to the lack of clamping of the outer ring of the die-casting, resulting in poor stability during processing. Attached Figure Description

[0013] Figure 1 This is the front view of the present invention;

[0014] Figure 2 This is a schematic diagram of the engaging mechanism of this utility model;

[0015] Figure 3 This is a schematic diagram of the card sleeve structure of this utility model;

[0016] Figure 4 This utility model Figure 1 A magnified view of part A.

[0017] The components are: 1. Workbench; 2. Support base; 3. Hinge base; 4. Rotary shaft; 5. Positioning block; 6. Sleeve; 7. Spring ring; 8. Slider; 9. Threaded rod; 10. Gripper; 11. Hinge frame; 12. Cylinder; 13. Rotating arm; 14. Slide groove; 15. Dividing groove. Detailed Implementation

[0018] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.

[0019] according to Figure 1 , 2 As shown in Figures 3 and 4, this embodiment proposes a positioning and clamping device for automotive aluminum alloy die-cast parts, including a worktable 1, a support base 2, a hinge base 3, a rotating shaft 4, and grippers 10. The support base 2 is fixedly connected to the top of the worktable 1. The hinge bases 3 are symmetrically fixedly connected to both sides of the top of the worktable 1. Grippers 10 are symmetrically connected to both sides of the hinge bases 3 via the rotating shaft 4. Driving mechanisms are symmetrically arranged on both sides of the worktable 1, and positioning mechanisms are symmetrically arranged on both sides of the support base 2. The base of the automotive aluminum alloy die-cast part is placed on the support base 2. At the top, the positioning mechanism passes through four symmetrical mounting holes on the base to initially lock the automotive aluminum alloy die casting. Then, the drive mechanism drives two sets of grippers 10 to rotate toward the automotive aluminum alloy die casting, using the grippers 10 to clamp the automotive aluminum alloy die casting and fix it on the top of the worktable 1. This fixing method of positioning first and then clamping solves the problem in the existing technology of using opposing clamping, where there is a gap between the clamping block and the automotive aluminum alloy die casting, resulting in poor stability during processing due to lack of clamping of the outer ring of the die casting.

[0020] The positioning mechanism includes a positioning block 5, a sleeve 6, a partition groove 15, and a spring ring 7. The support base 2 has positioning blocks 5 symmetrically arranged on both sides. The top of the positioning block 5 is provided with a sleeve 6. The top of the sleeve 6 is a conical head structure, and multiple partition grooves 15 are evenly distributed in a ring. The sleeve 6 is provided with a spring ring 7 inside. The sleeve 6 is inserted into the mounting hole of the automotive aluminum alloy die-casting part base. The inner wall of the mounting hole first squeezes the top of the sleeve 6 and the spring ring 7 inward and then expands due to the elastic force generated by the spring ring 7, which tightens the mounting hole of the automotive aluminum alloy die-casting part base, and initially fixes the automotive aluminum alloy die-casting part above the worktable 1.

[0021] The positioning block 5 has a sliding groove 14 inside, and the sliding groove 14 has a moving mechanism that matches the card sleeve 6 inside, and the positions of the card sleeve 6 and the gripper 10 are offset from each other.

[0022] The moving mechanism includes a slider 8 and a threaded rod 9. The slider 8 is slidably connected inside the slide groove 14, and the threaded rod 9 is rotatably connected inside the slide groove 14. One end of the threaded rod 9 passes through the interior of the slider 8 and is threadedly connected to it. The top of the slider 8 is fixedly connected to the bottom of the sleeve 6. The threaded rod 9 is threadedly engaged with the slider 8, and the slide groove 14 restricts the movement trajectory of the slider 8. When the threaded rod 9 is turned clockwise and counterclockwise, it can drive the slider 8 to move back and forth in a straight line along the slide groove 14. The sleeve 6 is connected to the slider 8 as a whole, and the position of the sleeve 6 can be adjusted to match the position of the mounting hole.

[0023] The driving mechanism includes a hinge frame 11, a cylinder 12, and a rotating arm 13. A set of hinge frames 11 are symmetrically arranged on both sides of the worktable 1. The bottom end of the hinge frame 11 is hinged to a cylinder 12. The output end of the cylinder 12 is fixedly connected to a rotating arm 13. One end of the rotating arm 13 is hinged to the bottom end of the gripper 10. The output end of the cylinder 12 is hinged to the bottom end of the gripper 10 through the rotating arm 13. While the cylinder 12 drives the rotating arm 13 to extend and retract, it can also drive the gripper 10 to rotate forward and backward around the rotation axis 4 as the center, causing the gripper 10 to move closer to or away from the automotive aluminum alloy die casting, so as to clamp the automotive aluminum alloy die casting above the worktable 1, or after the gripper 10 separates from the automotive aluminum alloy die casting, it can move it away from above the worktable 1. At this time, the ferrule 6 is disengaged from the mounting hole.

[0024] The top of the hinge frame 11 is fitted with a bolt, and the two sides of the workbench 1 are symmetrically provided with threaded holes. The bottom end of the bolt is threaded to the inner wall of the threaded hole, and the hinge frame 11 is fixed to the workbench 1 by the bolt.

[0025] The workbench 1 includes a top plate, a bottom plate, and columns. Columns are symmetrically fixedly connected to both sides of the bottom plate, and the top plate is fixedly connected to the top of the columns.

[0026] This positioning and clamping device for automotive aluminum alloy die castings inserts a ferrule 6 into the inner wall of the mounting hole of the automotive aluminum alloy die casting base. The inner wall of the mounting hole first compresses the top of the ferrule 6 and the spring ring 7 inward, and then expands due to the elastic force generated by the spring ring 7, thus tensioning the mounting hole of the automotive aluminum alloy die casting base. This initially fixes the automotive aluminum alloy die casting above the worktable 1. The output end of the cylinder 12 is hinged to the bottom end of the gripper 10 through the rotating arm 13. While the cylinder 12 drives the rotating arm 13 to extend and retract, it can also drive the gripper 10 to rotate around the rotating shaft 4 as the center, bringing the gripper 10 closer to the automotive aluminum alloy die casting to clamp the automotive aluminum alloy die casting above the worktable 1. This solves the problem in the prior art where the opposing clamping method results in a gap between the clamping block and the automotive aluminum alloy die casting, leading to poor stability during processing due to the lack of clamping of the outer ring of the die casting.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A positioning and clamping device for automotive aluminum alloy die-cast parts, comprising a worktable (1), a support base (2), a hinge base (3), a rotating shaft (4), and grippers (10), characterized in that: The top of the workbench (1) is fixedly connected to a support base (2), and the two sides of the top of the workbench (1) are symmetrically fixedly connected to hinge bases (3). The two sides of the hinge bases (3) are symmetrically connected to grippers (10) through a rotating shaft (4). The two sides of the workbench (1) are symmetrically provided with driving mechanisms, and the two sides of the support bases (2) are symmetrically provided with positioning mechanisms. The positioning mechanism includes a positioning block (5), a sleeve (6), a partition groove (15), and a spring ring (7). The support base (2) is symmetrically provided with positioning blocks (5) on both sides. The top of the positioning block (5) is provided with a sleeve (6). The top of the sleeve (6) is provided with a conical head structure and multiple partition grooves (15) are distributed in a ring at equal intervals. The inside of the sleeve (6) is provided with a spring ring (7).

2. The positioning and clamping device for automotive aluminum alloy die-casting parts according to claim 1, characterized in that: The positioning block (5) has a sliding groove (14) inside, and the sliding groove (14) has a moving mechanism that matches the sleeve (6) inside, and the sleeve (6) and the gripper (10) are misaligned.

3. The positioning and clamping device for automotive aluminum alloy die-casting parts according to claim 2, characterized in that: The moving mechanism includes a slider (8) and a threaded rod (9). The slider (8) is slidably connected inside the slide groove (14), and the threaded rod (9) is rotatably connected inside the slide groove (14). One end of the threaded rod (9) passes through the interior of the slider (8) and is threadedly connected to it. The top of the slider (8) is fixedly connected to the bottom end of the sleeve (6).

4. The positioning and clamping device for automotive aluminum alloy die-casting parts according to claim 1, characterized in that: The drive mechanism includes a hinge frame (11), a cylinder (12) and a rotating arm (13). A set of hinge frames (11) are symmetrically arranged on both sides of the workbench (1). The bottom end of the hinge frame (11) is hinged to a cylinder (12). The output end of the cylinder (12) is fixedly connected to a rotating arm (13). One end of the rotating arm (13) is hinged to the bottom end of the gripper (10).

5. The positioning and clamping device for automotive aluminum alloy die-casting parts according to claim 4, characterized in that: The top of the hinge frame (11) is fitted with a bolt, and the two sides of the workbench (1) are symmetrically provided with threaded holes. The bottom end of the bolt is threadedly connected to the inner wall of the threaded hole.

6. The positioning and clamping device for automotive aluminum alloy die-casting parts according to claim 1, characterized in that: The workbench (1) includes a top plate, a bottom plate and columns. Columns are symmetrically fixed to both sides of the bottom plate, and the top plate is fixed to the top of the columns.

Images