A stent machining clamp

Abstract

The utility model belongs to the field of automobile, especially a support processing clamp, it includes base and four clamp mechanism of base top installation, the clamp mechanism includes: floating support pin, floating support pin is equipped with three, floating support pin sets up in the top of base, stop pin, stop pin is equipped with two, stop pin bolt connection is in the top of base and is located in the vicinity of floating support pin, hydraulic pressure platen locking mechanism, hydraulic pressure platen locking mechanism includes hydraulic cylinder, quick change chuck, hydraulic control valve, hydraulic pump station, the output of hydraulic cylinder and the bottom of quick change chuck are connected, the hydraulic end of hydraulic cylinder and the inside communication of hydraulic control valve, hydraulic control valve and hydraulic pump station communicate, in the utility model, high efficiency, greatly promote production rhythm, clamping force stability, guarantee processing quality, reduce artificial cost and labor intensity, need not repeatedly screw bolt, safety is high, reliability is strong, flexible adaptation many varieties production, long-term economy is more optimal.

Description

Technical Field

[0001] This utility model relates to the field of automotive technology, and in particular to a bracket processing fixture. Background Technology

[0002] Engine mounts are critical components in automotive, construction machinery, and aero-engine equipment, primarily used to secure the engine and absorb vibrations, ensuring its stability during operation. Because engine mounts typically bear significant dynamic loads, they require high machining accuracy and strength. Therefore, fixture design must balance positioning accuracy, clamping reliability, and machining efficiency. Fixture design for automotive engine mounts is crucial in the mount manufacturing process.

[0003] However, most existing fixtures are manually operated, which leads to the following problems:

[0004] 1. Low efficiency: Manual locking / unlocking is time-consuming, and its efficiency is far lower than that of hydraulic / pneumatic clamps in mass production.

[0005] 2. Unstable clamping force: It depends on the operator's operating force. Too tight a clamping force may cause the workpiece to deform, while too loose a clamping force may cause the workpiece to loosen during processing.

[0006] 3. Poor adaptability: The position of the pressure plate is fixed. When the shape or size of the workpiece changes, the pads need to be readjusted, resulting in a long changeover time.

[0007] 4. Safety risks: During high-speed processing, manual clamping may loosen due to vibration; improper operation may easily injure fingers.

[0008] 5. Insufficient rigidity: When the pressure plate is overhanging for a long time, it is prone to elastic deformation, which affects the machining accuracy (such as milling vibration causing surface roughness).

[0009] 6. Spatial interference: The pressure plate may block the machining area, requiring frequent avoidance and affecting tool path design.

[0010] 7. High labor intensity: Frequent tightening of bolts can easily lead to worker fatigue, especially when high torque is required. Utility Model Content

[0011] The purpose of this utility model is to solve the shortcomings of existing technologies, such as low efficiency, unstable clamping force, poor adaptability, safety risks, insufficient rigidity, spatial interference, and high labor intensity, and to propose a bracket processing fixture.

[0012] To achieve the above objectives, the present invention adopts the following technical solution:

[0013] A bracket processing fixture includes a base and four clamping mechanisms mounted on top of the base, the clamping mechanisms comprising:

[0014] There are three floating support pins, which are located at the top of the base.

[0015] There are two stop pins, which are bolted to the top of the base and located near the floating support pin.

[0016] The hydraulic pressure plate locking mechanism includes a hydraulic cylinder, a quick-change chuck, a hydraulic control valve, and a hydraulic pump station. The output end of the hydraulic cylinder is connected to the bottom of the quick-change chuck, and the hydraulic end of the hydraulic cylinder is connected to the interior of the hydraulic control valve. The hydraulic control valve is connected to the hydraulic pump station. This mechanism offers high efficiency, significantly improving production cycle time, stable clamping force, ensuring processing quality, reducing labor costs and labor intensity, eliminating the need for repeated bolt tightening, high safety, strong reliability, flexible adaptation to multi-variety production, and superior long-term economic benefits.

[0017] As a preferred embodiment of this utility model, the top of the base is provided with a support block that is movably connected to three floating support pins, and the stop pins correspond to the support blocks.

[0018] Furthermore, the support block is used to support and limit the automotive engine bracket, facilitating subsequent clamping and fixing of the automotive engine bracket.

[0019] In a preferred embodiment of this utility model, the stop pin includes a T-shaped block and a pin rod, wherein the hole of the T-shaped block is movably connected to the surface of the pin rod.

[0020] Furthermore, the T-block is used to fix it to the base, and the pin is used to limit the movement of the car engine bracket.

[0021] As a preferred embodiment of this utility model, five hydraulic cylinders and five quick-change chucks are provided. The hydraulic cylinders include a horizontal cylinder, a vertical cylinder and a side-shifting cylinder. The bottom of the horizontal cylinder is bolted to the top of the base. There are three vertical cylinders. The surfaces of the three vertical cylinders are bolted to the opening of the base. The surface of the side-shifting cylinder is bolted to the inner side of the base.

[0022] Furthermore, the installation of horizontal cylinders, vertical cylinders, and side-shifting cylinders at the required clamping positions facilitates more stable clamping and fixation of the automotive engine mount.

[0023] As a preferred embodiment of this utility model, the quick-change chuck includes a horizontal chuck, a vertical chuck, and a side-shifting chuck. The output end of the horizontal cylinder is connected to the horizontal chuck. There are three vertical chucks, which are connected to the vertical cylinder, and the side-shifting cylinder is connected to the side-shifting chuck.

[0024] Furthermore, the horizontal chuck can apply a horizontal clamping force, the vertical chuck can apply a downward clamping force, and the lateral chuck can apply a front-to-back clamping force to the support, ensuring clamping stability.

[0025] As a preferred embodiment of this utility model, a pressure sensor is provided inside the quick-change chuck, and the pressure sensor is located in the pressure plate structure of the quick-change chuck.

[0026] Furthermore, the clamping force is monitored in real time to prevent overload or underload. Beneficial effects

[0027] 1. High efficiency, significantly improving production cycle time. Clamping / unclamping takes only 1-3 seconds, which is 5-10 times faster than manually tightening bolts (10-30 seconds). It is especially suitable for mass production and can be seamlessly integrated with automated production lines. It can be used with robotic arms and automatic feeding systems to achieve unmanned operation.

[0028] 2. Stable clamping force ensures processing quality. The hydraulic system outputs constant pressure to avoid problems caused by excessive tightness (deformation) or excessive looseness (vibration) due to manual operation. The high rigidity structure and uniform pressure reduce processing vibration and improve hole accuracy and surface finish.

[0029] 3. Reduce labor costs and labor intensity. One-click operation eliminates the need for repeated bolt tightening, reducing worker fatigue and training difficulty, resulting in long-term savings in labor costs. It is especially suitable for workshops with 24-hour continuous production.

[0030] 4. High safety and reliability, anti-loosening design, hydraulic locking remains stable under vibration and impact, avoiding processing accidents, no manual intervention, eliminating safety hazards such as finger crushing;

[0031] 5. Flexible adaptation to multi-variety production, parameters (such as clamping force and pressure plate position) can be quickly adjusted through PLC, and the changeover time is shortened by more than 50% compared with manual clamps. Optional pressure sensor can be equipped to monitor and provide feedback on clamping status in real time, supporting intelligent production management.

[0032] 6. Superior long-term economic efficiency. Although the initial investment is higher, the cost can be recovered in 1-2 years by improving efficiency and reducing scrap rate. It is easy to maintain, and the modern hydraulic system has a modular design with a lower failure rate than pneumatic clamps.

[0033] This utility model offers the following advantages: high efficiency, significantly improved production cycle time, stable clamping force, guaranteed processing quality, reduced labor costs and labor intensity, no need for repeated bolt tightening, high safety, strong reliability, flexible adaptation to multi-variety production, and superior long-term economic benefits. Attached Figure Description

[0034] Figure 1 This is a three-dimensional schematic diagram of a bracket processing fixture proposed in this utility model;

[0035] Figure 2 This is a top view of a bracket processing fixture proposed in this utility model;

[0036] Figure 3 This is a schematic diagram of the hydraulic cylinder structure of a bracket processing fixture proposed in this utility model;

[0037] Figure 4 This is a schematic diagram of the support block structure of a bracket processing fixture proposed in this utility model.

[0038] In the diagram: 1. Base; 2. Floating support pin; 3. Stop pin; 4. Hydraulic cylinder; 5. Quick-change chuck; 6. Hydraulic control valve; 7. Hydraulic pump station; 8. Support block. Detailed Implementation

[0039] 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. Example

[0040] Reference Figure 1-4 A bracket processing fixture includes a base 1 and four clamping mechanisms mounted on the top of the base 1, the clamping mechanisms comprising:

[0041] Floating support pin 2, there are three floating support pins 2, and the floating support pins 2 are set on the top of the base 1;

[0042] There are two stop pins 3. The stop pins 3 are bolted to the top of the base 1 and are located near the floating support pin 2.

[0043] The hydraulic pressure plate locking mechanism includes a hydraulic cylinder 4, a quick-change chuck 5, a hydraulic control valve 6, and a hydraulic pump station 7. The output end of the hydraulic cylinder 4 is connected to the bottom of the quick-change chuck 5, the hydraulic end of the hydraulic cylinder 4 is connected to the interior of the hydraulic control valve 6, and the hydraulic control valve 6 is connected to the hydraulic pump station 7.

[0044] The above structure offers the following advantages: high efficiency, significantly improved production cycle time, stable clamping force, guaranteed processing quality, reduced labor costs and labor intensity, no need for repeated bolt tightening, high safety, strong reliability, flexible adaptation to multi-variety production, and superior long-term economic benefits.

[0045] In this utility model, the top of the base 1 is provided with a support block 8 that is movably connected to three floating support pins 2, and the stop pin 3 corresponds to the support block 8. The support block 8 is used to support and limit the automobile engine bracket.

[0046] In this utility model, the stop pin 3 includes a T-shaped block and a pin rod. The hole of the T-shaped block is movably connected to the surface of the pin rod. The T-shaped block is used to fix it to the base 1, and the pin rod is used to limit the movement of the automobile engine bracket.

[0047] In this utility model, there are five hydraulic cylinders 4 and five quick-change chucks 5. The hydraulic cylinder 4 includes a horizontal cylinder, a vertical cylinder and a side-shifting cylinder. The bottom of the horizontal cylinder is bolted to the top of the base 1. There are three vertical cylinders. The surfaces of the three vertical cylinders are bolted to the openings of the base 1. The surface of the side-shifting cylinder is bolted to the inner side of the base 1. The horizontal cylinder, vertical cylinder and side-shifting cylinder are installed at the positions that need to be clamped, which facilitates more stable clamping and fixing of the car engine bracket.

[0048] In this invention, the quick-change chuck 5 includes a horizontal chuck, a vertical chuck, and a lateral shift chuck. The output end of the horizontal cylinder is connected to the horizontal chuck. There are three vertical chucks, which are connected to the vertical cylinder. The lateral shift cylinder is connected to the lateral shift chuck. The horizontal chuck can apply a horizontal clamping force, the vertical chuck can apply a downward clamping force, and the lateral shift chuck can apply a front-to-back clamping force to the bracket, ensuring the stability of the clamping.

[0049] In this invention, a pressure sensor is installed inside the quick-change chuck 5. The pressure sensor is located in the pressure plate structure of the quick-change chuck 5 to monitor the clamping force in real time and prevent overload or under-clamping.

[0050] The working principle of this utility model is as follows: The engine bracket is placed on the support block 8 by a person or a robot. The floating support pin 2 and the stop pin 3 cooperate to limit the movement and ensure complete constraint. The operator presses the button to turn on the power of the hydraulic pump station 7. The hydraulic control valve 6 opens and high-pressure oil enters the hydraulic cylinder 4. The piston of the hydraulic cylinder 4 pushes the quick-change chuck 5 to move, applying force evenly to fix the workpiece. The pressure sensor feeds back the clamping force to ensure stability. The machine tool performs milling, drilling and other processes. The hydraulic system maintains constant pressure. After the processing is completed, the hydraulic control valve 6 reverses, the oil pressure is released, the quick-change chuck 5 is quickly lifted, and the workpiece can be unloaded manually or automatically.

[0051] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A bracket processing fixture, comprising a base (1) and four clamping mechanisms mounted on the top of the base (1), characterized in that, The clamping mechanism includes: Floating support pins (2), three floating support pins (2) are provided, and the floating support pins (2) are set on the top of the base (1); Two stop pins (3) are provided. The stop pins (3) are bolted to the top of the base (1) and located near the floating support pin (2). The hydraulic plate locking mechanism includes a hydraulic cylinder (4), a quick-change chuck (5), a hydraulic control valve (6), and a hydraulic pump station (7). The output end of the hydraulic cylinder (4) is connected to the bottom of the quick-change chuck (5), the hydraulic end of the hydraulic cylinder (4) is connected to the inside of the hydraulic control valve (6), and the hydraulic control valve (6) is connected to the hydraulic pump station (7).

2. The bracket processing fixture according to claim 1, characterized in that, The base (1) is provided with a support block (8) on its top, which is movably connected to three floating support pins (2), and the stop pin (3) corresponds to the support block (8).

3. The bracket processing fixture according to claim 1, characterized in that, The stop pin (3) includes a T-block and a pin rod, with the hole in the T-block being movably connected to the surface of the pin rod.

4. The bracket processing fixture according to claim 1, characterized in that, The hydraulic cylinder (4) and quick-change chuck (5) are each provided with five. The hydraulic cylinder (4) includes a horizontal cylinder, a vertical cylinder and a side-shifting cylinder. The bottom of the horizontal cylinder is bolted to the top of the base (1). There are three vertical cylinders. The surfaces of the three vertical cylinders are bolted to the opening of the base (1). The surface of the side-shifting cylinder is bolted to the inner side of the base (1).

5. A bracket processing fixture according to claim 4, characterized in that, The quick-change chuck (5) includes a horizontal chuck, a vertical chuck, and a side-shifting chuck. The output end of the horizontal cylinder is connected to the horizontal chuck. There are three vertical chucks. The vertical chuck is connected to the vertical cylinder, and the side-shifting cylinder is connected to the side-shifting chuck.

6. A bracket processing fixture according to claim 1, characterized in that, A pressure sensor is installed inside the quick-change chuck (5), and the pressure sensor is located in the pressure plate structure of the quick-change chuck (5).

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