A large workpiece anti-scrap hole sinking device for radial drilling machine

Abstract

The utility model discloses a large -scale workpiece counter -scraping sink hole device for radial drilling machine, including the steel platform of the benchmark installation platform, be equipped with the fixed flange on the steel platform, and the fixed flange is fixed through the fixed flange compression accessory, and the fixed flange is connected with the indexable flange, and be equipped with counter -scraping sink hole cutter on the indexable flange, and counter -scraping sink hole cutter corresponds the workpiece needing counter -scraping sink hole processing, and the workpiece is fixed through workpiece compression accessory. The utility model is simple and practical, and effectively improves product processing quality, production operation safety and work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of back-scraping processing of large workpieces, and in particular to a back-scraping countersinking device for large workpieces used on a radial drilling machine. Background Technology

[0002] In the machinery industry, bolt connections are commonly used to connect large components. To ensure that the bolt head or nut fits tightly against the mounting surface, a countersunk hole is usually machined at one end of the bolt hole. A flat mounting surface allows for even distribution of the bolt preload, thereby enhancing the stability and reliability of the bolt connection.

[0003] However, the current back-scraping and countersinking machining of large products faces technical bottlenecks such as complicated process implementation, low work efficiency, and high implementation difficulty. These bottlenecks are mainly manifested in the following ways: due to the limited size of large workpieces and the worktable size of radial drilling machines, the size of large workpieces far exceeds the processing range of radial drilling machines. Radial drilling machines cannot scrape all the bolt holes around a flange plane in one go, requiring repeated lifting, rotating, and clamping operations. The entire process is inefficient and poses significant safety hazards.

[0004] Therefore, it is necessary to develop new types of anti-scraping and countersinking devices for large workpieces to overcome the problems of existing technologies. Summary of the Invention

[0005] Purpose of the utility model: In view of the shortcomings and defects of the existing technology, this utility model provides a device for back-scraping and countersinking of large workpieces on a radial drilling machine. It is simple and practical, and effectively improves product processing quality, production operation safety and work efficiency.

[0006] Technical solution: The present invention relates to a device for back-scraping and countersinking large workpieces on a radial drilling machine, characterized in that: it includes a steel platform as a reference mounting platform, a fixed flange on the steel platform, the fixed flange being fixed by a fixed flange clamping accessory, the fixed flange being connected to a rotatable flange, and a back-scraping and countersinking tool being provided on the rotatable flange, the back-scraping and countersinking tool corresponding to the workpiece that needs to be back-scraped and countersinked, and the workpiece being fixed by a workpiece clamping accessory.

[0007] The indexable flange is positioned by an indexable flange clamping accessory.

[0008] The indexable flange and the fixed flange are provided with two ball bearings to form a slewing bearing structure.

[0009] The indexable flange and the fixed flange each have two corresponding ball grooves.

[0010] The indexable flange has several blind holes on its side, and a force-adding rod is inserted into the blind holes.

[0011] The indexable flange plane is provided with several sets of screw holes.

[0012] The workpiece is located on a steel platform, which is located on a radial drilling machine.

[0013] The workpiece is a large workpiece that exceeds the range of the drilling machine rocker arm. The workpiece is located on the device of this utility model. This device is versatile and can adapt to workpieces of different sizes and specifications.

[0014] Beneficial effects: Compared with the prior art, the present invention has the following significant advantages: The present invention improves processing quality and reliability: Through the precise fit between the indexable flange and the fixed flange, and the application of the back-scraping countersinking tool, the accuracy and consistency of countersinking processing can be ensured, which significantly improves the countersinking processing quality of large workpieces and has a significant effect on the reliability and stability of the subsequent installation of the entire set of bolted connections.

[0015] This invention improves operational safety: the device avoids the need for multiple lifting, rotating, and clamping operations when large workpieces exceed the range of the radial drilling machine's arm, fundamentally eliminating the safety risks associated with this and ensuring the safety of the production process.

[0016] This invention improves work efficiency: the integrated device design allows the workpiece to be processed with a single clamping, eliminating the tedious steps of repeated adjustments and hoisting, greatly shortening auxiliary time, and thus significantly improving production efficiency.

[0017] This utility model has a simple and practical structure: the device has a reasonable structural design and simple component composition, which not only effectively solves the production problem of reverse processing of large products, but also has low manufacturing cost and is easy to operate and maintain. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the indexable flange of this utility model; Figure 3 This is a top view of the indexable flange of this utility model. In the figure, 1 is the indexable flange; 2 is the countersinking tool; 3 is the workpiece; 4 is the ball bearing; 5 is the fixed flange; 6 is the steel platform; 7 is the indexable flange clamping accessory; 8 is the workpiece clamping accessory; and 9 is the fixed flange clamping accessory. Detailed Implementation

[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0020] The present invention relates to a device for back-scraping and countersinking large workpieces on a radial drilling machine, comprising a steel platform 6 as a reference mounting platform, a fixed flange 5 on the steel platform 6, the fixed flange 5 being fixed by a fixed flange clamping accessory 9, the fixed flange 5 being rotatably connected to a rotatable flange 1, the rotatable flange 1 being provided with a back-scraping and countersinking tool 2, the back-scraping and countersinking tool 2 corresponding to the workpiece 3 that needs to be back-scraped and countersinked, the workpiece 3 being fixed by a workpiece clamping accessory 8.

[0021] The indexable flange 1 of this invention is positioned by the indexable flange clamping attachment 7. Two sets of ball bearings 4 are provided between the indexable flange 1 and the fixed flange 5, forming a slewing bearing structure to achieve smooth rotation of the indexable flange 1 relative to the fixed flange 5. Both the indexable flange 1 and the fixed flange 5 have two corresponding ball bearing grooves. The indexable flange 1 has several blind holes on its side (the number of blind holes can be adjusted according to actual conditions), into which a force-adjusting rod is inserted for corresponding rotation. The plane of the indexable flange 1 has several sets of screw holes (the number and spacing of the screw holes can be adjusted according to actual conditions), which are used to clamp workpieces of different sizes. The workpiece 3 is a large workpiece located on a radial drilling machine, suitable for machining countersinking holes on large workpieces on a radial drilling machine. When the indexable flange 1 rotates to the corresponding machining position, it is clamped and fixed using the clamping attachment 7 to prevent the workpiece from moving upwards or vibrating during countersinking.

[0022] In implementation, the fixed flange 5 is first fixedly installed at the designated position on the steel platform 6 using the clamping attachment 9, serving as the foundation of the entire device. A ball bearing groove is provided on the upper end face of the fixed flange 5, and a number of balls 4 are placed there. Then, the indexable flange 1 is placed on top of the fixed flange 5, with the balls 4 positioned between the contact surfaces of the two flanges, thus forming a low-friction-resistance slewing bearing structure, allowing the indexable flange 1 to rotate flexibly relative to the fixed flange 5. The workpiece 3 is then hoisted onto the indexable flange 1, and the clamping attachments 7 and 8 are sequentially clamped and secured.

[0023] Place the countersinking tool 2 on the indexable flange 1 to be machined. After starting the radial drilling machine, the drilling machine spindle drives the countersinking tool 2, which in turn drives the tool 2 to precisely countersink the bolt holes of the workpiece 3. During the process, a force-adding rod can be inserted into the blind hole on the side of the indexable flange 1. With manual intervention or other auxiliary measures, the indexable flange 1 can be slowly rotated to countersink the remaining holes in sequence. This process can be completed without the assistance of lifting equipment, ensuring the safety of the operation.

[0024] This utility model is applicable to the processing of large workpieces on the bolt mounting surface of a radial drilling machine. It comprises a repositionable flange assembly, a fixed flange assembly, a steel platform, and other clamping accessories. This utility model device is simple and practical, effectively solving processing difficulties in existing production processes, improving the processing quality of the countersunk hole plane on the bolt mounting surface, ensuring that the bolt head or nut can tightly fit the mounting surface, and significantly improving the distribution of preload in bolt connections and the reliability and stability of product connections. The repositionable flange and fixed flange of this utility model device use ball bearing transmission to form a slewing bearing structure similar to a plane bearing, allowing the repositionable flange to rotate smoothly to any position required for processing. During the countersunk hole processing, this utility model device eliminates the need for multiple lifting operations; only the repositionable flange needs to be rotated, avoiding multiple lifting of large workpieces and ensuring the safety of production operations. This utility model device can smooth out a ring of bolt holes on an entire flange surface, requiring only one workpiece clamping, significantly improving work efficiency.

Claims

1. A device for back-scraping and countersinking large workpieces on a radial drilling machine, characterized in that: The system includes a steel platform (6) serving as a reference mounting platform. A fixed flange (5) is provided on the steel platform (6). The fixed flange (5) is fixed by a fixed flange clamping attachment (9). The fixed flange (5) is connected to a rotatable flange (1). A countersinking tool (2) is provided on the rotatable flange (1). The countersinking tool (2) corresponds to the workpiece (3) that needs to be countersinked. The workpiece (3) is fixed by a workpiece clamping attachment (8).

2. The device for countersinking large workpieces on a radial drilling machine according to claim 1, characterized in that: The indexable flange (1) is positioned by the indexable flange clamping attachment (7).

3. The device for countersinking large workpieces on a radial drilling machine according to claim 1, characterized in that: Two ball bearings (4) are provided between the indexable flange (1) and the fixed flange (5) to form a slewing bearing structure.

4. The device for countersinking large workpieces on a radial drilling machine according to claim 1, characterized in that: The indexable flange (1) and the fixed flange (5) are each provided with two corresponding ball grooves.

5. The device for countersinking large workpieces on a radial drilling machine according to claim 1, characterized in that: The indexable flange (1) is provided with several blind holes on its side, and a force-adding rod is inserted into the blind holes.

6. The device for countersinking large workpieces on a radial drilling machine according to claim 1, characterized in that: The indexable flange (1) has several sets of screw holes on its plane.

7. The device for countersinking large workpieces on a radial drilling machine according to claim 1, characterized in that: The workpiece (3) is located on a steel platform (6), which is located on a radial drilling machine.

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