Precise automobile part machining fixing jig

Abstract

The utility model provides a kind of precision automobile parts processing fixing jig, comprising: pedestal, mounting plate, first pressure unit and second pressure unit;The mounting plate is located on the pedestal, for placing workpiece;The first pressure unit and second pressure unit are respectively located on the both sides of the upper end of the pedestal, for from both sides pressure tight the workpiece.The utility model makes that device can effectively reduce vibration, prevent displacement when working, ensure self stability.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, and in particular to a fixture for machining precision automotive parts. Background Technology

[0002] In modern industrial production fields such as machining and assembly, reliable workpiece fixation is a crucial step in ensuring machining accuracy and product quality. A well-designed workpiece clamping device can effectively prevent workpiece displacement and vibration during processing, avoiding dimensional deviations and surface damage caused by workpiece loosening, thereby improving production efficiency and product qualification rate.

[0003] Most workpiece clamping devices commonly found on the market have relatively simple structures, typically employing single-sided clamping or a single fixing method. These devices have several shortcomings in practical applications. For example, single-sided clamping can easily lead to uneven force on the workpiece, causing tilting or rotation during processing and affecting machining accuracy; the single fixing method is less adaptable to workpieces of different shapes and sizes, making it difficult to meet diverse production needs. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a precision automotive parts machining fixture.

[0005] To solve the above problems, the technical solution adopted by this utility model is as follows: A precision automotive parts machining fixture, comprising: Base, mounting plate, first clamping unit and second clamping unit; The mounting plate is disposed on the base and is used to place the workpiece; The first pressing unit and the second pressing unit are respectively located on both sides of the upper end of the base, and are used to press the workpiece from both sides.

[0006] Preferably, the first pressing unit includes a first cylinder, a first drive rod, a first support rod, and a first pressure rod; the first cylinder is fixedly installed on one side of the upper end of the base, and its output end is connected to the first drive rod; the first support rod is vertically fixed to the upper end of the base; the first pressure rod is rotatably installed on the upper end of the first support rod; the upper end of the first drive rod is rotatably connected to the first end of the first pressure rod; the second end of the first pressure rod is used to press the workpiece.

[0007] Preferably, the second pressing unit includes a second cylinder, a second drive rod, a second support rod, and a second pressure rod; the second cylinder is fixedly installed on the other side of the upper end of the base, and its output end is connected to the second drive rod; the second support rod is vertically fixed to the upper end of the base; the second pressure rod is rotatably installed on the upper end of the second support rod; the upper end of the second drive rod is rotatably connected to the first end of the second pressure rod; the second end of the second pressure rod is used to press the workpiece.

[0008] Preferably, the mounting plate is fixed to the middle of the upper end of the base.

[0009] Preferably, the workpiece is placed directly on the mounting plate.

[0010] Preferably, both the first support rod and the second support rod are vertically fixed to the upper end of the base.

[0011] Preferably, the first drive rod drives the first pressure rod to rotate around the first support rod by its up-and-down movement; the second drive rod drives the second pressure rod to rotate around the second support rod by its up-and-down movement.

[0012] The beneficial effects of this utility model are as follows: 1. The base is made of high-strength alloy material and has anti-slip and shock-absorbing pads at the bottom. The surface of the mounting plate is finely ground and has positioning grooves. The first and second clamping units have reasonable structural designs. These features enable the device to effectively reduce vibration, prevent displacement, and ensure its own stability during operation.

[0013] 2. By clamping the workpiece from both sides through the first and second clamping units, combined with the constraint of the workpiece by the mounting plate positioning groove, it can be ensured that the workpiece remains fixed during processing, avoiding the impact of movement on processing accuracy. At the same time, the clamping force is dispersed by the double-sided clamping, which greatly improves the processing quality and efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a side view of the present invention. Figure 3 This is a top view of the present invention; In the figure: 1 base, 2 mounting plate, 3 workpiece, 4 first cylinder, 5 first drive rod, 6 first support rod, 7 first pressure rod, 8 second cylinder, 9 second drive rod, 10 second support rod, 11 second pressure rod. Detailed Implementation

[0015] 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.

[0016] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0017] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] Reference Figure 1-3 A precision automotive parts machining fixture consists of a base 1, a mounting plate 2, a first clamping unit, and a second clamping unit. Its design aims to achieve stable and reliable clamping of the workpiece 3, meeting the needs of various machining scenarios.

[0019] The base 1, serving as the fundamental support structure for the entire device, is cast from high-strength alloy material, possessing excellent compressive strength and deformation resistance, and capable of withstanding large working loads. Its bottom is equipped with anti-slip and shock-absorbing pads, which effectively reduce vibration during operation, ensuring the stability of the device and preventing displacement during operation.

[0020] Mounting plate 2 is fixedly installed at the center of the upper end of base 1. It is made of high-quality wear-resistant steel plate with a finely ground surface, exhibiting high flatness and smoothness to ensure the flatness and stability of workpiece 3 when placed. Mounting plate 2 also features positioning grooves that can engage with specific parts of workpiece 3 for rapid and precise positioning. Workpiece 3 is placed directly on mounting plate 2; the positioning grooves effectively restrict its horizontal movement, providing a good foundation for subsequent clamping operations.

[0021] The first clamping unit and the second clamping unit are respectively located on both sides of the upper end of the base 1. The two cooperate with each other to clamp the workpiece 3 from both sides, ensuring that the workpiece 3 remains fixed during the processing and avoiding the impact of workpiece movement on processing accuracy.

[0022] The specific structure of the first clamping unit is as follows: The first cylinder 4 is fixedly installed on one side of the upper end of the base 1. This cylinder uses a pneumatic component with high sealing performance and long service life, and has stable output force and fast response speed. Its output end is connected to the first drive rod 5. When the first cylinder 4 works, it can drive the first drive rod 5 to perform up and down reciprocating motion. The first support rod 6 is vertically fixed to the upper end of the base 1. It is made of high-strength solid steel rod and provides a stable support point for the first pressure rod 7. The first pressure rod 7 is rotatably installed on the upper end of the first support rod 6. The two are connected by a high-precision bearing, which can realize the flexible rotation of the first pressure rod 7. The upper end of the first drive rod 5 is rotatably connected to the first end of the first pressure rod 7. When the first drive rod 5 moves upward, it will push the first pressure rod 7 to rotate around the first support rod 6, causing the second end of the first pressure rod 7 to move downward, thereby clamping the workpiece 3; conversely, when the first drive rod 5 moves downward, the second end of the first pressure rod 7 is lifted, releasing the workpiece 3. To improve the clamping effect, the second end of the first pressure rod 7 is also provided with an elastic rubber pad, which can increase the friction with the surface of the workpiece 3 while avoiding damage to the surface of the workpiece 3.

[0023] The structure of the second clamping unit is similar to that of the first clamping unit. The second cylinder 8 is also fixedly mounted on the other side of the upper end of the base 1, using a pneumatic component with performance matching that of the first cylinder 4 to ensure consistent clamping force on both sides. Its output end is connected to the second drive rod 9, which moves up and down under the drive of the second cylinder 8. The second support rod 10 is vertically fixed to the upper end of the base 1, providing a stable support structure for the entire clamping device together with the first support rod 6. The second pressure rod 11 is rotatably mounted on the upper end of the second support rod 10 and rotatably connected to the upper end of the second drive rod 9. The second drive rod 9 drives the second pressure rod 11 to rotate around the second support rod 10 through its up-and-down movement, realizing the clamping and releasing operation on the other side of the workpiece 3. The second end of the second pressure rod 11 is also equipped with an elastic rubber pad to ensure that the clamping of the workpiece 3 is both firm and does not cause surface damage.

[0024] In actual operation, the operator places the workpiece 3 in the positioning slot of the mounting plate 2, then activates the first cylinder 4 and the second cylinder 8. The first drive rod 5 and the second drive rod 9 move upwards under the action of their respective cylinders, driving the first pressure rod 7 and the second pressure rod 11 to rotate, thus firmly pressing the workpiece 3 from both sides. After processing is complete, the cylinders stop operating, the first drive rod 5 and the second drive rod 9 move downwards, and the first pressure rod 7 and the second pressure rod 11 release, allowing the workpiece 3 to be removed. This double-sided pressing method effectively disperses the pressing force, ensuring the stability and reliability of the workpiece 3 during processing, greatly improving processing quality and efficiency.

[0025] 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 precision automotive parts machining fixture, characterized in that, include: Base (1), mounting plate (2), first clamping unit and second clamping unit; The mounting plate (2) is disposed on the base (1) and is used to place the workpiece (3); The first pressing unit and the second pressing unit are respectively located on both sides of the upper end of the base (1) and are used to press the workpiece (3) from both sides. The first pressing unit includes a first cylinder (4), a first drive rod (5), a first support rod (6), and a first pressure rod (7); the first cylinder (4) is fixedly installed on one side of the upper end of the base (1), and its output end is connected to the first drive rod (5); the first support rod (6) is vertically fixed to the upper end of the base (1); the first pressure rod (7) is rotatably installed on the upper end of the first support rod (6); the upper end of the first drive rod (5) is rotatably connected to the first end of the first pressure rod (7); the second end of the first pressure rod (7) is used to press the workpiece (3).

2. The precision automotive parts machining fixture according to claim 1, characterized in that: The second pressing unit includes a second cylinder (8), a second drive rod (9), a second support rod (10), and a second pressure rod (11); the second cylinder (8) is fixedly installed on the other side of the upper end of the base (1), and its output end is connected to the second drive rod (9); the second support rod (10) is vertically fixed to the upper end of the base (1); the second pressure rod (11) is rotatably installed on the upper end of the second support rod (10); the upper end of the second drive rod (9) is rotatably connected to the first end of the second pressure rod (11); the second end of the second pressure rod (11) is used to press the workpiece (3).

3. The precision automotive parts machining fixture according to claim 2, characterized in that: The mounting plate (2) is fixed to the middle of the upper end of the base (1).

4. The precision automotive parts machining fixture according to claim 3, characterized in that: The workpiece (3) is placed directly on the mounting plate (2).

5. The precision automotive parts machining fixture according to claim 2, characterized in that: The first support rod (6) and the second support rod (10) are both vertically fixed to the upper end of the base (1).

6. The precision automotive parts machining fixture according to claim 2, characterized in that: The first drive rod (5) drives the first pressure rod (7) to rotate around the first support rod (6) by its up-and-down movement; the second drive rod (9) drives the second pressure rod (11) to rotate around the second support rod (10) by its up-and-down movement.

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