Clamping device for finish machining of aluminum alloy precision part

Abstract

The utility model discloses an aluminum alloy precision part finish machining clamping device, and relates to the technical field of aluminum alloy precision part finish machining, the aluminum alloy precision part finish machining clamping device comprises a shell, a fixing mechanism is arranged in the shell, a groove is formed in the top face of the shell, a plurality of positioning mechanisms are arranged on the two sides of the groove in a mirror image mode, and the fixing mechanism comprises a two-way lead screw; the clamping mechanism is arranged, the two-way lead screw can be driven to rotate through the rotary knob, the clamping plates on the two sides are indirectly driven to clamp a workpiece, the contact area between the clamping plates and the workpiece can be increased through the arc-shaped clamping plates, and therefore the situation that indentations appear on the surface of the workpiece is reduced; according to the positioning mechanism, the workpiece can be positioned through the cooperation of the spring and the positioning head, and the situation that the precision of the workpiece is unqualified due to the fact that the workpiece deviates before being fixed due to external force is reduced.

Description

Technical Field

[0001] This application relates to the field of precision machining technology for aluminum alloy parts, and in particular to a clamping device for precision machining of aluminum alloy parts. Background Technology

[0002] Aluminum alloys are one of the most widely used non-ferrous metal structural materials in industry. They are widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industries. The rapid development of the industrial economy has led to an increasing demand for the precision of aluminum alloys.

[0003] Regarding the aforementioned technologies, the inventors believe the following problems still exist:

[0004] Firstly, existing clamping devices mostly have straight clamping plates, resulting in a small contact area when clamping cylindrical aluminum alloys. This can lead to clamping damage, causing defects in the workpiece's appearance and increasing the defect rate.

[0005] Secondly, some clamping devices may have the two clamping plates not contacting the workpiece at the same time when clamping it, causing the workpiece to shift. This may result in the workpiece's dimensions being unqualified during subsequent finishing.

[0006] To address the aforementioned problems, the inventors have proposed a precision machining clamping device for aluminum alloy parts, which solves these problems. Utility Model Content

[0007] In order to improve the problems of pressure damage and workpiece displacement caused by the small area of ​​the clamping plate and aluminum alloy in the above-mentioned device, the purpose of this utility model is to provide a precision machining clamping device for aluminum alloy parts.

[0008] To solve the above problems, this utility model provides the following solution: a precision machining clamping device for aluminum alloy parts, including a housing, a fixing mechanism is provided inside the housing, a groove is provided on the top surface of the housing, and multiple positioning mechanisms are mirror-arranged on both sides of the groove. The fixing mechanism includes a bidirectional lead screw, which is rotatably installed inside the housing. A slider is threaded onto the opposite threaded part of the outer surface of the bidirectional lead screw. A clamping plate is fixedly installed on the top surface of the slider, and limit blocks are fixedly installed on both sides of the clamping plate. The limit blocks are slidably installed on the inner wall of one side of the groove.

[0009] Preferably, the positioning mechanism includes a rod, which is fixedly installed inside the housing. A spring is movably sleeved on the outer surface of the rod. A positioning head is slidably sleeved on one end of the rod. A limiting ring is fixedly sleeved on the outer surface of the positioning head. A fixing ring that cooperates with the limiting ring is fixedly installed on one side of the housing. The positioning head movably passes through the fixing ring.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This utility model, by setting up a clamping mechanism, can drive the bidirectional lead screw to rotate through the knob, which indirectly drives the clamping plates on both sides to clamp the workpiece. Furthermore, the arc-shaped clamping plates can increase the contact area with the workpiece, thereby reducing the occurrence of indentations on the workpiece surface.

[0012] 2. This utility model, by setting a positioning mechanism, can position the workpiece by cooperating with the spring and the positioning head, reducing the possibility of the workpiece shifting before being fixed due to external force, thus reducing the possibility of the workpiece failing to meet accuracy standards. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the workpiece and the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the fixing mechanism of this utility model.

[0017] Figure 4 This is a schematic diagram of the positioning mechanism of this utility model.

[0018] In the diagram: 1. Housing; 2. Fixing mechanism; 4. Groove; 21. Limiting block; 22. Clamping plate; 23. Limiting groove; 24. Inner groove; 25. Two-way lead screw; 26. Slider; 27. Knob; 3. Positioning mechanism; 31. Fixing ring; 32. Positioning head; 33. Limiting ring; 34. Circular groove; 35. Insert rod; 36. Spring; 4. Groove. Detailed Implementation

[0019] 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.

[0020] Example: Figure 1-4 As shown, this utility model provides a precision machining clamping device for aluminum alloy parts, including a housing 1, which serves as a support. A fixing mechanism 2 is provided inside the housing 1 to fix the workpiece. A groove 4 is provided on the top surface of the housing 1 to hold the workpiece. Multiple positioning mechanisms 3 are mirror-arranged on both sides of the groove 4. The positioning mechanisms 3 are elastic and are evenly distributed so that they cooperate with each other to position the workpiece.

[0021] The fixing mechanism 2 includes a bidirectional lead screw 25, which is rotatably mounted inside the housing 1, allowing it to rotate within the housing 1. An inner groove 24 is formed inside the housing 1, and the bidirectional lead screw 25 is rotatably mounted between the inner walls of the inner groove 24, allowing it to rotate within the groove. A knob 27 is fixedly mounted at the end of the bidirectional lead screw 25, allowing for better rotation of the lead screw 25. The knob 27 is rotatably mounted on one side of the housing 1 to prevent it from falling off. Slider blocks 26 are threaded onto the opposite threads on the outer surface of the bidirectional lead screw 25. The bidirectional lead screw 25 drives two sliders 26 to move. A clamping plate 22 is fixedly installed on the top surface of the slider 26, causing the slider 26 to drive the clamping plate 22 to move. The opposite side of the clamping plate 22 is arc-shaped, so that the contact surface between the clamping plate 22 and the workpiece is aligned. Limiting blocks 21 are fixedly installed on both sides of the clamping plate 22. The limiting blocks 21 can limit the clamping plate 22 to prevent it from shifting position. The limiting blocks 21 are slidably installed on one side of the inner wall of the groove 4. Limiting grooves 23 are opened on both sides of the inner wall of the groove 4 to cooperate with the limiting blocks 21, so that the limiting blocks 21 and the limiting grooves 23 cooperate to limit the clamping plate 22 and prevent it from shifting.

[0022] The positioning mechanism 3 includes a rod 35, which limits the positioning head 32 to prevent it from shifting. The rod 35 is fixedly installed inside the housing 1 to prevent it from falling off. A circular groove 34 is provided on one side of the inner wall of the groove 4. One end of the rod 35 is fixedly installed on one side of the inner wall of the circular groove 34, so that the rod 35 is fixed inside the circular groove 34. A spring 36 is movably sleeved on the outer surface of the rod 35, which keeps the positioning head 32 in a protruding state. The positioning head 32 is slidably sleeved on one end of the rod 35, so that it can position the workpiece. A limiting ring 33 is fixedly sleeved on the outer surface of the positioning head 32 to prevent it from falling off. A fixing ring 31 that works with the limiting ring 33 is fixedly installed on one side of the housing 1, so that the limiting ring 33 and the fixing ring 31 cooperate to lock together and prevent the positioning head 32 from falling off. The positioning head 32 moves through the fixing ring 31, so that the positioning head 32 is enclosed in a protruding state.

[0023] Working principle: First, the workpiece is placed inside the groove 4 on the top surface of the housing 1, so that the workpiece presses against the positioning mechanism 3 on both sides, and the positioning head 32 slides into the circular groove 34 at the angle of the workpiece surface. At the same time, it moves along the insertion rod 35 and compresses the spring 36, so that the positioning head 32 in different positions maintains different states, and the workpiece can be initially positioned. The fixing ring 31 and the limiting ring 33 cooperate to prevent the positioning head 32 from falling off.

[0024] Then, the workpiece is fixed using the fixing mechanism 2. The knob 27 is turned with a tool to make the bidirectional lead screw 25 rotate in the inner groove 24. At the same time, the bidirectional lead screw 25 drives the sliders 26 on both sides to rotate. The sliders 26 can drive the two clamping plates 22 to move, so that the clamping plates 22 can move through the limit block 21 and the limit groove 23 to clamp and fix the workpiece.

[0025] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A precision machining clamping device for aluminum alloy parts, comprising a housing (1), characterized in that: The housing (1) is provided with a fixing mechanism (2) inside, and a groove (4) is provided on the top surface of the housing (1). Multiple positioning mechanisms (3) are provided on both sides of the groove (4). The fixing mechanism (2) includes a bidirectional lead screw (25), which is rotatably installed inside the housing (1). The outer surface of the bidirectional lead screw (25) is threaded with a slider (26) at the location where opposite threads are engraved. A clamping plate (22) is fixedly installed on the top surface of the slider (26). Limiting blocks (21) are fixedly installed on both sides of the clamping plate (22). The limiting blocks (21) are slidably installed on one side of the inner wall of the groove (4).

2. An aluminum alloy precision part finishing clamp apparatus as defined in claim 1, wherein: The positioning mechanism (3) includes a rod (35), which is fixedly installed inside the housing (1). A spring (36) is movably sleeved on the outer surface of the rod (35). A positioning head (32) is slidably sleeved on one end of the rod (35). A limiting ring (33) is fixedly sleeved on the outer surface of the positioning head (32). A fixing ring (31) that cooperates with the limiting ring (33) is fixedly installed on one side of the housing (1). The positioning head (32) movably passes through the fixing ring (31).

3. An aluminum alloy precision part finishing clamp apparatus as defined in claim 1, wherein: The housing (1) has an inner groove (24) inside, and the bidirectional lead screw (25) is rotatably installed between the inner walls of the inner groove (24).

4. An aluminum alloy precision part finishing clamp apparatus as defined in claim 1, wherein: A knob (27) is fixedly installed at the end of the bidirectional lead screw (25), and the knob (27) is rotatably installed on one side of the housing (1).

5. An aluminum alloy precision part finishing clamp apparatus as defined in claim 1, wherein: The inner walls on both sides of the groove (4) are provided with limiting grooves (23) that cooperate with the limiting block (21).

6. The precision machining clamping device for aluminum alloy parts according to claim 1, characterized in that: The opposite side of the clamp (22) is arc-shaped.

7. An aluminum alloy precision part finishing clamp apparatus as defined in claim 2 wherein: A circular groove (34) is provided on one side of the inner wall of the groove (4), and one end of the insertion rod (35) is fixedly installed on one side of the inner wall of the circular groove (34).

8. An aluminum alloy precision part finishing clamp apparatus as defined in claim 2, wherein: The multiple positioning mechanisms (3) are distributed at equal intervals.

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