General inner hole positioning and processing device for pneumatic semiconductor

Abstract

The utility model discloses a pneumatic semiconductor universal inner hole positioning and processing device which comprises a machine base. An air cylinder containing cavity is formed in one side in the machine base, and an air cylinder is placed in the air cylinder containing cavity. A bottom plate is arranged on one side of the air cylinder, and the bottom plate is arranged in the fixing cavity on one side of the air cylinder containing cavity and fixed in the machine base through a fixing piece; the other side, located on the air cylinder containing cavity, of the machine base is provided with a cavity for containing an inner expansion mandrel, a front pushing spring is installed on an end shaft of the side, stretching into the cavity of the machine base, of the inner expansion mandrel, the inner expansion mandrel is connected with the end head of one side of the air cylinder, and the air cylinder drives the inner expansion mandrel to move in the cavity; a universal expansion sleeve is mounted on the other side, opposite to the bottom plate, of the base; a workpiece is placed on one side of the universal expansion sleeve. The mechanism is convenient to operate, the precision of machined products is stable, and procedures are reduced. The structure is simplified, time is saved, productivity is improved, and labor intensity is relieved.

Description

Technical Field

[0001] This utility model relates to a pneumatic semiconductor universal internal hole positioning and processing device, belonging to the field of precision parts processing technology. Background Technology

[0002] In the machinery industry, the machining of precision parts is a crucial step in ensuring product quality and performance. With technological advancements, the demands for product precision and machining efficiency are constantly increasing. Therefore, the design and application of tooling fixtures suitable for precision parts machining are particularly important. Traditional fixture devices often face the following problems during parts machining:

[0003] 1. Insufficient positioning accuracy: When using traditional reverse jaw clamping, operators need to manually locate the positioning point of each part. This method is not only time-consuming, but also easily affected by the operator's experience and skill level, resulting in unstable positioning accuracy and thus affecting the accuracy of subsequent machining.

[0004] 2. Difficulty in controlling coaxiality: In precision machining, coaxiality is a key indicator affecting the function of parts. Traditional clamping methods cannot guarantee that the coaxiality is controlled within 0.02mm, which may cause problems such as poor fit and poor sealing of the machined parts during use.

[0005] 3. Long clamping time: Traditional clamping methods consume a significant amount of time during processing due to the need to locate and repeatedly adjust each positioning point, directly impacting production efficiency. This is especially true in mass production, where increased clamping time significantly reduces overall production efficiency.

[0006] 4. Poor stability: Traditional fixtures are prone to unstable clamping force due to factors such as vibration and heat during machining, affecting machining quality. Insufficient clamping force may cause displacement of parts during machining, leading to dimensional deviations and a decrease in surface quality.

[0007] To address the above issues, it is particularly necessary to develop a novel pneumatic semiconductor universal internal hole positioning and machining device. This device aims to achieve higher positioning accuracy and coaxiality, improve production efficiency, reduce clamping time, and ensure the stability of the machining process by optimizing the fixture structure and operation method. Utility Model Content

[0008] To address the problems existing in the prior art, this utility model provides a pneumatic semiconductor universal internal hole positioning and processing device, thereby solving the above-mentioned technical problems.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is: a pneumatic semiconductor universal internal hole positioning processing device, including a base; a cylinder placement cavity is provided on one side of the base, and a cylinder is placed in the cylinder placement cavity; a base plate is provided on one side of the cylinder, and the base plate is set in a fixed cavity on one side of the cylinder placement cavity and fixed in the base by a fastener;

[0010] The base is located on the other side of the cylinder placement chamber and has a chamber for placing the inner expansion mandrel. A push spring is installed on the shaft of the inner expansion mandrel that extends into the base chamber. The inner expansion mandrel is connected to one end of the cylinder and is moved in the chamber by the cylinder.

[0011] A universal expansion sleeve is installed on the other side of the machine base relative to the base plate; a workpiece is placed on one side of the universal expansion sleeve.

[0012] Furthermore, the diameter of the inner expansion mandrel located on the side of the universal expansion sleeve is larger than the diameter located on the side of the cylinder end.

[0013] Furthermore, the base has a fixing hole on one side of the cylinder placement cavity for installing the cylinder connector.

[0014] Furthermore, the universal expansion sleeve is a T-shaped structure with a through hole in the center for the inner expansion mandrel to pass through. The universal expansion sleeve includes a central connecting end and a workpiece sleeve end.

[0015] Furthermore, the central connecting end is provided with multiple screw holes, which are used to fix the universal expansion sleeve to one side of the machine base by screws, and the workpiece is installed on the workpiece sleeve end.

[0016] The beneficial effects of this utility model are:

[0017] 1. Improved positioning accuracy: By using a cylinder-driven internal expansion mandrel, the device can achieve fast and accurate positioning, eliminating the errors of traditional manual positioning and ensuring high precision in the machining process.

[0018] 2. Optimized coaxiality control: The design of the internal expansion mandrel enables the workpiece to maintain coaxiality better during clamping, controlling it within 0.02mm, which improves the functionality of the parts and reduces problems such as poor fit and poor sealing caused by insufficient coaxiality.

[0019] 3. Reduced clamping time: The application of pneumatic structures makes the clamping process more automated, greatly reducing operation time. Especially in mass production, this device can significantly improve production efficiency and reduce production delays caused by excessive clamping time.

[0020] 4. Enhanced processing stability: During operation, the stable air pressure of the cylinder ensures a constant clamping force, effectively avoiding instability in clamping force caused by vibration and heat changes, thereby guaranteeing processing quality and dimensional accuracy of parts.

[0021] 5. Simplified operation process: The design of this device makes the operation process simpler and more intuitive. Operators only need to make simple settings and adjustments, which reduces the dependence on the operator's technical level and reduces the occurrence of human error.

[0022] 6. Compact structure and easy maintenance: The pneumatic semiconductor general-purpose internal hole positioning processing device has a compact structure, which is convenient for use in confined spaces. At the same time, the separate design of its cylinder and internal expansion mandrel facilitates later maintenance and replacement, thus improving the service life of the equipment.

[0023] In summary, the pneumatic semiconductor universal internal hole positioning and processing device of this utility model has significant advantages in improving processing accuracy, efficiency and stability, and can effectively meet the high requirements of modern machining industry for precision parts processing. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model.

[0025] In the diagram: 1. Internal expansion mandrel, 2. Workpiece, 3. Universal expansion sleeve, 4. Push spring, 5. Machine base, 6. Cylinder, 7. Cylinder connector, 8. Base plate. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit its scope.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention.

[0028] like Figure 1 As shown, a pneumatic semiconductor general internal hole positioning processing device includes a base 5; a cylinder placement cavity is provided on one side of the base 5, and a cylinder 6 is placed in the cylinder placement cavity; a base plate 8 is provided on one side of the cylinder 6, and the base plate 8 is disposed in a fixed cavity on one side of the cylinder placement cavity and fixed in the base 5 by a fastener.

[0029] The base 5 is located on the other side of the cylinder placement chamber and has a chamber for placing the inner expansion mandrel 1. The inner expansion mandrel 1 is inserted into the chamber of the base 5 and a push spring 4 is installed on the shaft of one end. The inner expansion mandrel 1 is connected to one end of the cylinder 6 and the cylinder 6 drives the inner expansion mandrel 1 to move in the chamber.

[0030] A universal expansion sleeve 3 is installed on the other side of the machine base 5 relative to the base plate 8; a workpiece 2 is placed on one side of the universal expansion sleeve 3.

[0031] In this preferred embodiment, the diameter of the inner expansion mandrel 1 located on the side of the universal expansion sleeve 3 is larger than the diameter located on the end side of the cylinder 6.

[0032] In this preferred embodiment, the base 5 has a fixing hole for installing the cylinder connector 7 on one side of the cylinder placement cavity.

[0033] In this preferred embodiment, the general expansion sleeve 3 has a T-shaped structure with a through hole in the center for the inner expansion mandrel 1 to pass through. The general expansion sleeve 3 includes a central connecting end 31 and a workpiece sleeve end 32.

[0034] In this preferred embodiment, the central connecting end 31 is provided with multiple screw holes, which fix the universal expansion sleeve 3 to one side of the machine base 5 by screws, and the workpiece 2 is installed on the workpiece sleeve end 32.

[0035] Working principle: The device is equipped with a cylinder 6, which is supplied with air from an air source and generates air pressure. Under the action of air pressure, the piston of cylinder 6 moves rapidly, transmitting the driving force to the connected inner expansion mandrel 1; at the same time, the workpiece mounted on the universal expansion sleeve 3 is positioned and moves to one side towards cylinder 6 via the inner expansion mandrel 1. Subsequently, the large-diameter rear end of the inner expansion mandrel 1 forms a tightness on the workpiece sleeve end 32 of the universal expansion sleeve 3, thereby fixing the workpiece 2 in the universal expansion sleeve 3.

[0036] This pneumatic semiconductor universal internal hole positioning and machining device achieves rapid and precise workpiece clamping by driving an internal expansion mandrel with a cylinder. It optimizes positioning accuracy, coaxiality and machining stability, simplifies the operation process, and greatly improves production efficiency and machining quality.

[0037] 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 or improvements 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 pneumatic semiconductor universal internal hole positioning and processing device, characterized in that, Includes a base (5); a cylinder placement cavity is provided on one side of the base (5), and a cylinder (6) is placed in the cylinder placement cavity; a base plate (8) is provided on one side of the cylinder (6), and the base plate (8) is provided in a fixed cavity on one side of the cylinder placement cavity and fixed in the base (5) by a fastener; The base (5) is located on the other side of the cylinder placement chamber and has a chamber for placing the inner expansion mandrel (1). The inner expansion mandrel (1) extends into the chamber of the base (5) and is equipped with a push spring (4). The inner expansion mandrel (1) is connected to one end of the cylinder (6) and is driven by the cylinder (6) to move in the chamber. A universal expansion sleeve (3) is installed on the other side of the base (5) relative to the base plate (8); a workpiece (2) is placed on one side of the universal expansion sleeve (3).

2. The pneumatic semiconductor universal internal hole positioning and processing device according to claim 1, characterized in that, The diameter of the inner expansion mandrel (1) located on one side of the universal expansion sleeve (3) is larger than the diameter located on the end side of the cylinder (6).

3. The pneumatic semiconductor universal internal hole positioning and processing device according to claim 1, characterized in that, The base (5) has a fixing hole on one side of the cylinder placement cavity for installing the cylinder connector (7).

4. The pneumatic semiconductor universal internal hole positioning and processing device according to claim 1, characterized in that, The general expansion sleeve (3) is a T-shaped structure with a through hole in the center for the inner expansion mandrel (1) to pass through. The general expansion sleeve (3) includes a central connecting end (31) and a workpiece sleeve end (32).

5. The pneumatic semiconductor universal internal hole positioning and processing device according to claim 4, characterized in that, The central connecting end (31) is provided with multiple screw holes, which fix the universal expansion sleeve (3) to one side of the machine base (5) by screws, and the workpiece (2) is installed on the workpiece sleeve end (32).

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