An adjustable aluminum alloy workpiece clamp

Abstract

This utility model discloses an adjustable aluminum alloy workpiece fixture, belonging to the technical field of aluminum alloy workpiece fixtures. It includes: a base, a fixed plate on the top of the base, a placement plate fixedly mounted on the top of the fixed plate, and short blocks fixedly mounted on both sides of the top of the placement plate. Two sets of short blocks on the same side are equipped with the same set of tubular clamping components, facilitating stable clamping and fixing of tubular and plate-shaped workpieces. It can be flexibly adjusted according to workpiece specifications, adapting to tubular and plate-shaped aluminum alloy workpieces of different diameters and sizes. Secondary fixing in the vertical direction is achieved through connecting the clamping plate and pressure plate, significantly enhancing the stability of plate-shaped workpiece clamping and effectively preventing workpiece loosening or displacement due to vibration, cutting forces, etc. during processing. It also enables electric adjustment of the workpiece processing angle, flexibly meeting the needs of multi-angle workpiece processing without requiring fixture replacement or workpiece repositioning, thus improving overall processing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy workpiece clamping technology, and in particular to an adjustable aluminum alloy workpiece clamping fixture. Background Technology

[0002] In the field of aluminum alloy workpiece machining, traditional fixtures have many shortcomings in terms of clamping adaptability, fixation stability, and angle adjustment, making it difficult to meet diverse and high-precision machining needs. Traditional fixtures have highly specific clamping structures, often only suitable for a single type or specific size of workpiece. For tubular and plate-shaped aluminum alloy workpieces, dedicated fixtures are required, increasing equipment investment costs and necessitating frequent fixture changes when machining different types of workpieces, extending changeover time and reducing production efficiency. Furthermore, traditional clamping structures lack adjustment flexibility. When faced with tubular workpieces of different diameters or plate-shaped workpieces of different sizes, they cannot achieve stable clamping through structural adjustments, requiring replacement of the corresponding clamping components, further limiting the equipment's versatility. Regarding the fixation of plate-shaped workpieces, traditional fixtures often employ a unidirectional clamping method, fixing the workpiece only from both sides, lacking effective vertical constraint. During the processing, plate-shaped workpieces are prone to loosening or displacement due to factors such as vibration and cutting force, resulting in dimensional deviations, increased scrap rate, and serious impact on product quality stability. Moreover, most traditional fixtures do not have angle adjustment functions. If multi-angle processing of the workpiece is required, the workpiece must be manually moved or the fixture must be replaced for repositioning, which is not only labor-intensive but also makes it difficult to ensure the accuracy of angle adjustment. Therefore, we propose an adjustable aluminum alloy workpiece fixture to solve this problem. Utility Model Content

[0003] The purpose of this invention is to provide an adjustable aluminum alloy workpiece fixture to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An adjustable aluminum alloy workpiece fixture includes: a base, a fixed plate on the top of the base, a placement plate fixedly mounted on the top of the fixed plate, short blocks fixedly mounted on both sides of the top of the placement plate, and a set of tubular clamping assemblies on the top of two sets of short blocks on the same side. Each tubular clamping assembly includes: a long plate, a movable block on the top of the long plate, multiple sets of connecting rods hinged to both sides of the movable block, and clamping rods hinged between the multiple sets of connecting rods on the same side, with the clamping rods positioned close to each other. Arc-shaped clamping plates are fixedly installed on both sides. Plate-shaped clamping assemblies are provided inside the fixing plates and the placement plates. The plate-shaped clamping assemblies include: a bidirectional lead screw, two sets of threaded plates are threadedly connected to the outer side of the bidirectional lead screw, a fixing rod is fixedly installed on the top of each of the two sets of threaded plates, a connecting plate is fixedly installed on the top of each of the two sets of fixing rods, a connecting clamping plate is fixedly installed on the side of each of the two sets of connecting plates that are close to each other, a threaded rod is threadedly connected to the top of each of the two sets of connecting clamping plates, and a pressure plate is rotatably installed on the bottom of each of the two sets of rods.

[0006] Preferably, the base is provided with a first bevel gear and a second bevel gear. A rotating shaft and a connecting shaft are respectively fixedly installed at one end of the first bevel gear and the second bevel gear. A bracket is fixedly installed inside the base. A first motor is fixedly installed on the top of the bracket. The output shaft of the first motor is fixedly connected to the connecting shaft. The rotating shaft is rotatably connected to the base. The rotating shaft rotates through to the top of the base. The top end of the rotating shaft is fixedly connected to a fixing plate.

[0007] Preferably, the two sets of short blocks located on the same side are fixedly connected to the corresponding long plates, the bottom of the two sets of long plates are fixedly installed with electric push rods, the output ends of the two sets of electric push rods are fixedly connected to the corresponding moving blocks, the top of the two sets of long plates are fixedly installed with two sets of limiting plates, and the four sets of clamping rods are slidably installed on the outside of the corresponding limiting plates.

[0008] Preferably, the bidirectional lead screw is rotatably mounted on the inner walls of both sides of the fixed plate, and a second motor is fixedly mounted on one side of the fixed plate. The output shaft of the second motor is fixedly connected to the bidirectional lead screw, and both sets of connecting plates and connecting clamps are set on the top of the placement plate.

[0009] Preferably, two sets of limiting rods are slidably installed inside the two sets of threaded plates, and the two ends of the two sets of limiting rods are respectively fixedly connected to the inner walls of the two sides of the fixing plate. The placement plate has two sets of sliding grooves inside, and the two sets of fixing rods are slidably installed inside the corresponding sliding grooves. Two sets of guide rods are slidably installed inside the top of the two sets of connecting clamps, and the bottom ends of the two sets of guide rods on the same side are respectively fixedly connected to the corresponding pressure plates.

[0010] Preferably, three sets of rollers are fixedly installed at the bottom of the fixing plate, and all three sets of rollers are in movable contact with the top of the base.

[0011] In this utility model, an adjustable aluminum alloy workpiece fixture is provided with a plate-shaped clamping assembly and a tubular clamping assembly. Activating an electric push rod at the bottom of the long plate causes the output end of the electric push rod to push a moving block upwards at the top of the long plate. Multiple sets of connecting rods hinged on both sides of the moving block rotate accordingly, causing two sets of clamping rods to slide and move closer to each other outside the limiting plate. An arc-shaped clamping plate on one side of the clamping rods moves synchronously, completing the fixation of the tubular aluminum alloy workpiece. Activating a second motor on one side of the fixing plate causes the output shaft of the second motor to drive a bidirectional lead screw to rotate inside the fixing plate. Two sets of threaded plates on the outer side of the bidirectional lead screw move relative to each other along the lead screw axis under the limiting action of the limiting rod, clamping the plate-shaped workpiece from both sides. The threaded rod at the top of the connecting clamping plate is rotated, and the pressure plate and the placement plate cooperate to fix the workpiece in the upper and lower directions for secondary fixation. This facilitates stable clamping and fixing of tubular and plate-shaped workpieces and can be flexibly adjusted according to the workpiece specifications. It can adapt to tubular and plate-shaped aluminum alloy workpieces of different diameters and sizes without the need to replace the clamping components, which increases the flexibility of the device. The secondary fixation in the upper and lower directions is achieved by connecting the clamping plate and the pressure plate, forming multi-dimensional clamping, which greatly enhances the stability of clamping plate-shaped workpieces and effectively prevents the workpiece from loosening or shifting due to vibration, cutting force, etc. during processing, thus reducing the scrap rate.

[0012] In this invention, an adjustable aluminum alloy workpiece fixture is provided with a first bevel gear, a second bevel gear, a rotating shaft, a connecting shaft, and rollers. When a first motor on the internal support of the base is activated, the output shaft of the first motor drives the connecting shaft to rotate, causing the second bevel gear at one end of the connecting shaft to rotate accordingly. Because the second bevel gear meshes with the first bevel gear, the first bevel gear drives the rotating shaft to rotate inside the base, and the fixed plate at the top of the rotating shaft rotates synchronously. This achieves electric adjustment of the workpiece machining angle, flexibly meeting the needs of multi-angle workpiece machining, without requiring fixture replacement or workpiece repositioning, thus improving overall machining efficiency. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of an adjustable aluminum alloy workpiece fixture proposed in this utility model.

[0014] Figure 2 This is a cross-sectional view of an adjustable aluminum alloy workpiece fixture proposed in this utility model.

[0015] Figure 3 This is a schematic diagram of the plate-shaped clamping assembly structure proposed in this utility model;

[0016] Figure 4 This is a schematic diagram of the tubular clamping assembly structure proposed in this utility model.

[0017] In the diagram: 1. Base; 2. Fixing plate; 3. Placement plate; 4. Plate-shaped clamping assembly; 401. Bidirectional lead screw; 402. Threaded plate; 403. Fixing rod; 404. Connecting plate; 405. Connecting clamping plate; 406. Threaded rod; 407. Pressure plate; 5. Tubular clamping assembly; 501. Long plate; 502. Electric push rod; 503. Moving block; 504. Connecting rod; 505. Clamping rod; 506. Arc-shaped clamping plate; 507. Limiting plate; 6. Bevel gear one; 7. Bevel gear two; 8. Connecting shaft; 9. Rotating shaft; 10. Roller. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Reference Figure 1-4 An adjustable aluminum alloy workpiece fixture includes: a base 1, a fixed plate 2 on the top of the base 1, a placement plate 3 fixedly mounted on the top of the fixed plate 2, short blocks fixedly mounted on both sides of the top of the placement plate 3, and a set of tubular clamping assemblies 5 on the top of two sets of short blocks on the same side. The tubular clamping assembly 5 includes: a long plate 501, a movable block 503 on the top of the long plate 501, multiple sets of connecting rods 504 hinged to both sides of the movable block 503, clamping rods 505 hinged between the multiple sets of connecting rods 504 on the same side, and fixedly mounted on the side of the two sets of clamping rods 505 that are close to each other. The device includes an arc-shaped clamping plate 506, a plate-shaped clamping assembly 4 inside the fixing plate 2 and the placement plate 3, and a bidirectional lead screw 401. Two sets of threaded plates 402 are threaded to the outer side of the bidirectional lead screw 401. A fixing rod 403 is fixedly installed on the top of each of the two sets of threaded plates 402. A connecting plate 404 is fixedly installed on the top of each of the two sets of fixing rods 403. A connecting clamping plate 405 is fixedly installed on the side of each of the two sets of connecting plates 404 that are close to each other. A threaded rod 406 is threaded to the top of each of the two sets of connecting clamping plates 405. A pressure plate 407 is rotatably installed on the bottom of each of the two sets of rods.

[0020] In this embodiment, a bevel gear 6 and a bevel gear 7 are provided inside the base 1. A rotating shaft 9 and a connecting shaft 8 are fixedly installed at one end of the bevel gear 6 and the bevel gear 7, respectively. A bracket is fixedly installed inside the base 1. A motor is fixedly installed on the top of the bracket. The output shaft of the motor is fixedly connected to the connecting shaft 8. The rotating shaft 9 is rotatably connected to the base 1. The rotating shaft 9 rotates through to the top of the base 1. The top end of the rotating shaft 9 is fixedly connected to the fixing plate 2, which facilitates the rotation of the fixed tubular and plate-shaped workpieces. Two sets of short blocks on the same side are fixedly connected to the corresponding long plates 501. Electric push rods 502 are fixedly installed at the bottom of the two sets of long plates 501. The output ends of the two sets of electric push rods 502 are fixedly connected to the corresponding moving blocks 503. Two sets of limiting plates 507 are fixedly installed on the top of the two sets of long plates 501. Four sets of clamping rods 505 are slidably installed on the outside of the corresponding limiting plates 507, which facilitates the movement of the moving blocks 503 and facilitates the clamping and fixing of tubular workpieces of different diameters.

[0021] In this embodiment, the bidirectional lead screw 401 is rotatably mounted on the inner walls of both sides of the fixed plate 2. A second motor is fixedly mounted on one side of the fixed plate 2, and the output shaft of the second motor is fixedly connected to the bidirectional lead screw 401. Two sets of connecting plates 404 and connecting clamping plates 405 are all disposed on the top of the placement plate 3, facilitating the rotation of the bidirectional lead screw 401 and the clamping and fixing of the plate-shaped workpiece. Two sets of limiting rods are slidably mounted inside the two sets of threaded plates 402, and the two ends of the two sets of limiting rods are respectively fixedly connected to the inner walls of both sides of the fixed plate 2. The plate 3 has two sets of sliding grooves inside, and two sets of fixing rods 403 are slidably installed inside the corresponding sliding grooves. Two sets of guide rods are slidably installed inside the top of the two sets of connecting clamps 405. The bottom ends of the two sets of guide rods on the same side are fixedly connected to the corresponding pressure plates 407, which facilitates the stable movement of the threaded plate 402 and the pressure plate 407. Three sets of rollers 10 are fixedly installed at the bottom of the fixing plate 2. All three sets of rollers 10 are movably abutting against the top of the base 1, which facilitates the rotation of the plate-shaped and tubular clamping components 5.

[0022] In this embodiment, when it is necessary to clamp a tubular aluminum alloy workpiece, the electric push rod 502 at the bottom of the long plate 501 is activated. The output end of the electric push rod 502 pushes the moving block 503 to move upward at the top of the long plate 501. The multiple sets of connecting rods 504 hinged on both sides of the moving block 503 rotate accordingly, causing the two sets of clamping rods 505 to slide and move closer to each other on the outside of the limiting plate 507. The arc-shaped clamping plate 506 on one side of the clamping rod 505 moves synchronously, adhering to the outer wall of the tubular workpiece from both sides. With the continuous push of the electric push rod 502, the arc-shaped clamping plate 506 applies a stable clamping force to the workpiece, completing the fixation of the tubular aluminum alloy workpiece. For plate-shaped aluminum alloy workpieces, they are placed between the two sets of connecting clamping plates 405 at the top of the placement plate 3. The second motor on one side of the fixing plate 2 is activated. The output shaft of the second motor drives the bidirectional lead screw 401 to rotate inside the fixing plate 2. Two sets of threaded plates 402 on the outer side of the bidirectional lead screw 401 move relative to each other along the lead screw axis under the limiting action of the limiting rod. The threaded plates 402 drive the connecting plate 404 and the connecting clamping plate 405 to move synchronously through the fixing rod 403. The two sets of connecting clamping plates 405 move closer to each other and clamp the plate-shaped workpiece from both sides. According to the thickness of the workpiece, the threaded rod 406 at the top of the connecting clamping plate 405 is rotated. The threaded rod 406 pushes the pressure plate 407 to move under the guidance of the guide rod. The pressure plate 407 cooperates with the placement plate 3 to fix the workpiece in the upper and lower directions for a second time, further enhancing the stability of the plate-shaped workpiece clamping and preventing the workpiece from loosening during processing. If it is necessary to adjust the processing angle of the workpiece, the motor one on the internal support of the base 1 is started. The output shaft of the motor one drives the connecting shaft 8 to rotate, and the bevel gear two 7 at one end of the connecting shaft 8 rotates accordingly. Since the bevel gear two 7 meshes with the bevel gear one 6, the bevel gear one 6 drives the rotating shaft 9 to rotate inside the base 1, and the fixing plate 2 at the top of the rotating shaft 9 rotates synchronously. The three sets of rollers 10 at the bottom of the fixed plate 2 roll on the top of the base 1, providing support for the rotation of the fixed plate 2, ensuring its smooth rotation, and meeting the processing requirements for the workpiece angle.

[0023] The above provides a detailed description of an adjustable aluminum alloy workpiece fixture provided by this utility model. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of these embodiments are merely for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. An adjustable aluminum alloy workpiece clamp characterized by, include: A base (1) is provided with a fixing plate (2) on the top of the base (1). A placement plate (3) is fixedly installed on the top of the fixing plate (2). Short blocks are fixedly installed on both sides of the top of the placement plate (3). The top of the two sets of short blocks on the same side is provided with the same set of tubular clamping components (5). The tubular clamping components (5) include: a long plate (501). A moving block (503) is provided on the top of the long plate (501). Multiple sets of connecting rods (504) are hinged on both sides of the moving block (503). Clamping rods (505) are hinged between the multiple sets of connecting rods (504) on the same side. Arc-shaped clamping plates (505) are fixedly installed on the side of the two sets of clamping rods (505) that are close to each other. 6) The fixed plate (2) and the placement plate (3) are provided with a plate-shaped clamping assembly (4). The plate-shaped clamping assembly (4) includes: a bidirectional lead screw (401). The outer side of the bidirectional lead screw (401) is threaded with two sets of threaded plates (402). The top of each set of threaded plates (402) is fixedly installed with a fixing rod (403). The top of each set of fixing rods (403) is fixedly installed with a connecting plate (404). The side of each set of connecting plates (404) that is close to each other is fixedly installed with a connecting clamping plate (405). The top of each set of connecting clamping plates (405) is threadedly connected with a threaded rod (406). The bottom of each set of rods is rotatably installed with a pressure plate (407).

2. The adjustable aluminum alloy workpiece fixture according to claim 1, characterized in that, The base (1) is provided with a bevel gear 1 (6) and a bevel gear 2 (7) inside. A rotating shaft (9) and a connecting shaft (8) are fixedly installed at one end of the bevel gear 1 (6) and the bevel gear 2 (7) respectively. A bracket is fixedly installed inside the base (1). A motor 1 is fixedly installed on the top of the bracket. The output shaft of the motor 1 is fixedly connected to the connecting shaft (8). The rotating shaft (9) is rotatably connected to the base (1). The rotating shaft (9) rotates through to the top of the base (1). The top end of the rotating shaft (9) is fixedly connected to the fixing plate (2).

3. The adjustable aluminum alloy workpiece fixture according to claim 1, characterized in that, The two sets of short blocks located on the same side are fixedly connected to the corresponding long plates (501). The bottom of the two sets of long plates (501) is fixedly installed with electric push rods (502). The output ends of the two sets of electric push rods (502) are fixedly connected to the corresponding moving blocks (503). The top of the two sets of long plates (501) is fixedly installed with two sets of limiting plates (507). The four sets of clamping rods (505) are slidably installed on the outside of the corresponding limiting plates (507).

4. The adjustable aluminum alloy workpiece fixture according to claim 1, characterized in that, The bidirectional lead screw (401) is rotatably mounted on the inner walls of both sides of the fixed plate (2). A second motor is fixedly mounted on one side of the fixed plate (2). The output shaft of the second motor is fixedly connected to the bidirectional lead screw (401). Both sets of connecting plates (404) and connecting clamps (405) are set on the top of the placement plate (3).

5. An adjustable aluminum alloy workpiece fixture according to claim 1, characterized in that, Two sets of limiting rods are slidably installed inside the two sets of threaded plates (402). The two ends of the two sets of limiting rods are respectively fixedly connected to the inner walls of the two sides of the fixing plate (2). Two sets of sliding grooves are opened inside the placement plate (3). The two sets of fixing rods (403) are slidably installed inside the corresponding sliding grooves. Two sets of guide rods are slidably installed inside the top of the two sets of connecting clamps (405). The bottom ends of the two sets of guide rods on the same side are respectively fixedly connected to the corresponding pressure plate (407).

6. An adjustable aluminum alloy workpiece fixture according to claim 1, characterized in that, Three sets of rollers (10) are fixedly installed at the bottom of the fixed plate (2), and the three sets of rollers (10) are in movable contact with the top of the base (1).

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