A device for monitoring the outer diameter of machined cylinders

Abstract

This utility model belongs to the field of machining technology and relates to a machining outer diameter monitoring device for a limited-movement mandrel during machining. This device enables real-time monitoring of changes in the outer diameter during machining, which is beneficial for improving machining efficiency and controlling product quality. It includes a mechanical arm fixed at one end to a lathe slide box by bolts, a V-shaped bracket fixed at the other end of the mechanical arm by bolts, and a dial indicator mounted on the V-shaped bracket. A through hole is machined at the center of the end plane of the V-shaped bracket, through which the probe of the dial indicator contacts the workpiece. This allows one operator to simultaneously complete dimensional inspection and tool feed / retraction, freeing up one operator and improving labor productivity.

Description

Technical Field

[0001] This utility model relates to a machining outer diameter monitoring device for a limited-movement mandrel during machining. This device can monitor the changes in the outer diameter in real time during machining, which is beneficial to improving machining efficiency and controlling product quality. It belongs to the field of mechanical processing technology. Background Technology

[0002] Currently, in the production of limited-movement mandrels, due to the product's length ranging from 10 to 17 meters and the strict requirements for external dimensional tolerances, heavy-duty conventional lathes are mostly used for machining. Due to the equipment's structure, the finishing process requires two people working together, one standing on each side of the workpiece. One person continuously measures and monitors the workpiece using a handheld measuring tool, while the other selects the feed or retraction based on the measured values ​​to ensure dimensional uniformity. This process is labor-intensive and poses certain safety risks during measurement. By designing and manufacturing an online external dimensional monitoring device for the machining process, one operator can simultaneously perform dimensional monitoring and feed, freeing up one operator and thus improving labor productivity. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a machining outer diameter monitoring device that realizes the function of automatic size monitoring of the limited mandrel during the machining process, freeing up one operator and realizing the purpose of single-person simultaneous monitoring and tool advance / retreat, thereby improving labor productivity.

[0004] The technical solution of this utility model is implemented as follows: a machining outer diameter monitoring device includes a mechanical arm that is fixed to a lathe slide box at one end by bolts, a V-shaped frame that is fixed to the other end of the mechanical arm by bolts, and a dial indicator mounted on the V-shaped frame. A through hole is machined at the center of the end plane position of the V-shaped frame, and the probe of the dial indicator contacts the workpiece through the through hole.

[0005] After the dial indicator is installed on the V-block, it is fixed by set screws through the fixing holes on the side of the V-block. The measuring range of the dial indicator has a certain adjustable range according to the size of the workpiece being processed.

[0006] During the processing, a mechanical cantilever pulls the V-shaped frame above the workpiece to make contact with it, and the reading is monitored by adjusting the dial gauge. The mechanical cantilever has two-stage adjustment and 360° rotation functions.

[0007] Wear-resistant alloy blocks are inlaid on both sides of the V-shaped frame.

[0008] The positive effects of this utility model are as follows: it enables single-person operation of equipment monitoring and cutting, freeing up one operator, reducing safety risks during operation, and improving labor productivity. Attached Figure Description

[0009] Figure 1 This is a front view of a machining outer diameter monitoring device according to the present invention.

[0010] Figure 2 This is a side view of a machining outer diameter monitoring device according to the present invention.

[0011] Figure 3 This is the front view of the V-shaped frame of this utility model.

[0012] Figure 4 This is a side view of the V-shaped frame of this utility model.

[0013] The diagram is labeled as follows: 1. Dial indicator; 2. Mechanical cantilever; 3. V-block; 4. Workpiece (also known as a mandrel). Detailed Implementation

[0014] like Figure 1 As shown, a machining outer diameter monitoring device includes a mechanical cantilever 2, one end of which is bolted to a lathe apron; a V-block 3, which is bolted to the other end of the mechanical cantilever 2; and a dial indicator 1 mounted on the V-block 3. A through hole is machined at the center of the end plane of the V-block. Specifically, a plane is formed at the upper included angle of the V-block, and the through hole is formed in the middle of this plane. The dial indicator 1 probe passes through the through hole and is mounted on the V-block so that the probe contacts the workpiece. The mechanical cantilever 2 is bolted to the lathe apron at one end and connected to the V-block at the other end. The dial indicator 1 is fixed to the V-block 3 using set screws.

[0015] In the actual machining process, the operator first measures the outer diameter of the machined workpiece (limited moving mandrel) 4. After the size requirements are met, the V-block is pulled to the vicinity of the cutting tool and above the outer diameter of the machined workpiece (limited moving mandrel) 4, so that the V-block 3 and the workpiece 4 are in good contact. The position and reading of the dial indicator 1 are adjusted, and machining begins. During the machining process, the changes in the pointer of the dial indicator 1 are observed. The tool advance and retraction are selected based on the changes in the value, so as to effectively control the consistency of the outer diameter of the limited moving mandrel and meet the process requirements.

[0016] The dial indicator 1 is installed on the upper plane of the V-shaped frame 3 and fixed by a fixing hole on the side of the V-shaped frame 3 and a set screw installed in the fixing hole. The position of the dial indicator 1 and the workpiece can be adjusted by the set screw according to the size of the workpiece.

[0017] During the processing, the mechanical cantilever 2 can drive the V-shaped frame 3 to pull it above the workpiece and make contact with the workpiece. The reading of the dial indicator is adjusted to monitor the process. The mechanical cantilever 2 has a two-stage adjustment structure, namely a structure that can be adjusted by 360° rotation and pulling within a certain distance range.

[0018] To improve the wear resistance of the V-block 3, wear-resistant alloy blocks are embedded in it. The opening and upper plane of the V-block 3 are designed to ensure that the dial indicator 1 remains perpendicular to the workpiece at all times. The V-block 3 is not suitable for all products; different sizes of V-block 3 can be used depending on the product.

[0019] First, the V-block is fixed to the mechanical arm with bolts. Then, the dial indicator is placed on the V-block and fixed with set screws. Finally, the mechanical arm is fixed in a suitable position on the lathe slide box. During the processing, the V-block is pulled to the top of the workpiece and makes contact with the workpiece through the mechanical arm. The dial indicator reading is adjusted for monitoring.

Claims

1. A machining outer diameter monitoring device, comprising a mechanical cantilever (2) with one end bolted to a lathe slide box, a V-frame (3) bolted to the other end of the mechanical cantilever (2), and a dial indicator (1) mounted on the V-frame (3), characterized in that: A through hole is machined at the center of the end plane of the V-shaped frame (3), and the probe of the dial indicator (1) contacts the workpiece (4) through the through hole.

2. The machining outer diameter monitoring device according to claim 1, characterized in that: After the dial indicator (1) is installed on the V-frame (3), it is fixed by the set screw through the fixing hole on the side of the V-frame (3). The range of the dial indicator (1) has a certain adjustable range according to the size of the workpiece.

3. The machining outer diameter monitoring device according to claim 1, characterized in that: During the processing, the V-shaped frame (3) is pulled to the top of the workpiece by the mechanical cantilever (2) and comes into contact with the workpiece. The reading of the dial indicator is adjusted to monitor the process. The mechanical cantilever (2) has two-stage adjustment and 360° rotation functions.

4. The machining outer diameter monitoring device according to claim 1, characterized in that: Wear-resistant alloy blocks are inlaid on both sides of the V-shaped frame (3).

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