Turning and boring compound tool

Abstract

The utility model relates to a tool for a lathe or a boring machine, in particular to a turning and boring compound tool. The turning and boring composite tool comprises a tool apron, a boring tool bar is fixedly connected to the tool apron, a boring tool bit is installed at the end, away from the tool apron, of the boring tool bar, a boring blade is arranged on the boring tool bit, a turning tool bit is installed on the tool apron, a turning blade is installed on the turning tool bit, the turning direction of a turning tool and the turning direction of the boring tool are parallel and identical, and the turning blade is of a double-edge structure. When a non-metal sealing element is machined, after the width of the part is achieved through machining, the part can be cut off through radial feeding of the turning and boring composite tool, machining of all sizes of a single product is completed, frequent tool changing operation is avoided, and production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to a cutting tool for lathes or boring machines, and more particularly to a lathe-boring composite cutting tool. Background Technology

[0002] With economic development, the demand for non-metallic seals is increasing. The machining accuracy of non-metallic seals such as guide sleeves and sealing sleeves directly affects product quality. Traditional machining methods require multiple processes, which are difficult to control in terms of dimensions and are inefficient. Currently, the use of combination tools is more common to reduce the number of processes and improve accuracy.

[0003] Chinese utility model patent CN2017170979U, published on April 3, 2018, discloses an adjustable turning-boring composite tool. This tool includes a tool holder with a slide rail perpendicular to the axial feed direction. A boring bar holder and an external turning tool holder are slidably mounted on the slide rail. A boring bar is mounted on the boring bar holder, and an external turning tool is mounted on the external turning tool holder. The turning directions of the boring bar and the external turning tool are parallel. The distance between the boring bar and the external turning tool can be adjusted via the slide rail. Only one operation is needed to simultaneously machine the inner and outer walls, and only the outer diameter and the tolerances of the inner and outer walls need to be monitored to meet the part requirements. Because the inner and outer walls are machined simultaneously, the material deformation is synchronized, reducing machining errors caused by material deformation and ensuring good accuracy even for softer materials.

[0004] Although this turning and boring composite tool can meet the precision requirements of non-metallic seals, the axial length of the seals is relatively short. When using this composite tool to process non-metallic seals such as guide sleeves and sealing sleeves, frequent tool changes and the use of a special cut-off tool are required, which seriously affects work efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a turning and boring composite tool to solve the problem of frequent tool changes required when machining non-metallic seals.

[0006] The turning and boring composite tool of this utility model adopts the following technical solution:

[0007] A turning and boring composite tool includes a tool holder, a boring bar fixedly connected to the tool holder, a boring head mounted on the end of the boring bar away from the tool holder, a boring insert mounted on the boring head, a turning head mounted on the tool holder, a turning insert mounted on the turning head, the turning direction of the turning tool and the boring tool being parallel and in the same direction, and the turning insert having a double-edged structure to achieve the functions of turning the outer diameter and cutting off.

[0008] Furthermore, the cutting tool head is rotatably connected to the tool holder, and the tool holder is provided with set bolts for positioning and fixing the cutting tool head.

[0009] Furthermore, the set bolt is a tapered set bolt.

[0010] Furthermore, a radially arranged lead screw is provided on the boring head to move the boring insert and change the interval between the cutting insert and the boring insert.

[0011] Furthermore, a dial is installed at the end of the lead screw away from the boring bar to indicate the interval between the boring bar and the turning tool.

[0012] Furthermore, the boring bar is provided with a workpiece collecting section to receive and store the workpiece cut by the cutting tool.

[0013] Furthermore, the tool holder and the boring bar are connected by hex bolts.

[0014] Furthermore, the boring head and the boring bar are fixedly installed using tapered end set bolts.

[0015] Furthermore, the cutting insert can be detachably mounted on the cutting tool head.

[0016] Furthermore, the boring insert can be detachably mounted on the boring head.

[0017] Beneficial Effects: This utility model is an improved invention. The boring-turning composite tool of this utility model includes a tool holder, a boring bar fixedly connected to the tool holder, a boring head mounted on the end of the boring bar away from the tool holder, and a boring insert mounted on the boring head. The boring bar is used to machine the inner hole of the pipe fitting. A turning head is mounted on the tool holder, and a turning insert is mounted on the turning head. The turning tool is used to turn the outer diameter of the pipe fitting. The turning directions of the turning tool and the boring tool are parallel and in the same direction, ensuring synchronous material deformation and improving turning accuracy. The turning insert has a double-edged structure to achieve both turning the outer diameter and cutting off. When machining non-metallic seals, after machining to the width of the part, the radial feed of the boring-turning composite tool can cut off the part, completing the machining of all dimensions of a single product, avoiding frequent tool changes, and improving production efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of one embodiment of the turning and boring composite tool of this utility model;

[0019] Figure 2 for Figure 1 Top view;

[0020] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0021] Figure 4 for Figure 1 A schematic diagram of the turning process;

[0022] Figure 5 for Figure 1A schematic diagram showing the removal of parts after processing is completed.

[0023] In the diagram: 1. Tool holder; 2. Tapered end set screw; 3. Socket head bolt; 4. Rotary shaft; 5. Turning tool head; 6. Turning insert; 7. Boring tool head; 8. Boring insert; 10. Boring tool holder; 12. Dial; 13. Lathe chuck; 14. Raw material; 15. Machined part; 16. Direction of part removal; 17. Turning tool head rotation direction. Detailed Implementation

[0024] The features and performance of this utility model will be further described in detail below with reference to the embodiments.

[0025] Existing turning and boring composite tools cannot perform cut-off functions, requiring frequent tool changes when machining non-metallic seals. The present invention aims to solve this problem by replacing the external turning tool with one that can simultaneously perform external turning and cut-off functions.

[0026] Based on the above ideas, such as Figure 1 , 2 As shown, in a basic embodiment, the turning-boring composite tool of this utility model includes a tool holder 1. The tool holder 1 is made of high-strength and high-rigidity material to reduce the impact of vibration during turning on dimensional accuracy. A boring bar 10 is fixedly connected to the tool holder 1. A boring head 7 is installed at the end of the boring bar 10 away from the tool holder 1. The boring head 7 uses a standard tool for vertical machining centers to minimize non-standard parts. A boring insert 8 is provided on the boring head 7. The boring insert 8 is used to machine the inner hole of the pipe fitting. The tool holder 1 is equipped with a turning tool... The cutting head 5 is equipped with a cutting insert 6, which is used to turn the outer diameter of the pipe fitting. The turning direction of the cutting insert 6 is parallel and in the same direction as that of the boring insert 8, which ensures that the material deformation is synchronized and improves the turning accuracy. The cutting insert 6 has a double-edged structure to realize the functions of turning the outer diameter and cutting off. When machining non-metallic seals, after machining to the width of the part, the part can be cut off by the radial feed of the turning and boring composite tool, completing the machining of all dimensions of a single product, avoiding frequent tool changing operations and improving production efficiency.

[0027] In a preferred embodiment, the cutting tool head 5 and the tool holder 1 are rotatably connected via a rotating shaft 4. Since the non-metallic seal is inserted into the boring bar 10 during machining, the machined part 15 can be quickly unloaded by rotating the cutting tool head 5 at the end of machining. The tool holder 1 is equipped with set bolts for positioning and fixing the cutting tool head 5, allowing for quick positioning and installation of the cutting tool head 5 before machining begins. In other embodiments, the cutting tool head 5 is fixedly mounted on the tool holder 1. Although the unloading process is more complex, it can still function normally.

[0028] In a preferred embodiment, the set bolt is a tapered set bolt 2. By using a high-strength set bolt with a tapered end, the connection is ensured to be stable, preventing rotation during processing that could damage the tool or parts and avoiding safety accidents. In other embodiments, welding can achieve similar strength and ensure normal operation.

[0029] In a preferred embodiment, the boring head 7 is provided with a radially arranged lead screw, which moves the boring insert 8 to change the interval between the turning insert 6 and the boring insert 8. By adjusting the interval between the boring insert 8 and the turning insert 6, the inner and outer diameters and wall thickness of the machined part can be changed, which can flexibly adapt to different production needs. In another embodiment, a similar effect can be achieved by setting a slide rail and set bolt structure. Although the strength is poor, it can still work normally.

[0030] like Figure 3 As shown, in a preferred embodiment, a scale 12 is installed at the end of the lead screw away from the boring bar 8 to display the interval between the boring bar 8 and the turning tool 6, ensuring that the production accuracy meets the requirements. In other embodiments, the interval between the two can be adjusted by directly rotating the lead screw without setting a scale plate, and it can still work normally.

[0031] In a preferred embodiment, the boring bar 10 is provided with a workpiece collecting section to receive and store the machined part 15 cut by the cutting tool. A large gap is provided between the tool holder 1 and the boring bar 10 to prevent the machined part 15 from colliding with the tool holder 1, thus preventing any impact on machining accuracy or damage to the machined part 15. In other embodiments, the workpiece collecting section is not provided; although the machined part 15 needs to be disassembled after each cut, it can still function normally.

[0032] In a preferred embodiment, the tool holder 1 and the boring bar 10 are connected by an internal hex bolt 3. The use of a high-strength set bolt ensures a stable connection, preventing loosening during machining that could damage the tool or parts and thus avoiding safety accidents. In other embodiments, welding can achieve similar strength and ensure normal operation.

[0033] In a preferred embodiment, the boring head 7 and the boring bar 10 are fixedly installed by a tapered set bolt 2. The use of a high-strength set bolt with a tapered end ensures a stable connection, preventing loosening during machining that could damage the tool or parts and thus avoiding safety accidents. In other embodiments, welding can achieve similar strength and ensure normal operation.

[0034] In a preferred embodiment, the cutting insert 6 is detachably mounted on the cutting tool head 5. During machining, different cutting tools can be selected according to the material and geometric parameters of the raw material 14 of the workpiece. Simultaneously, if a cutting tool is damaged, a tool replacement operation can be quickly completed, avoiding any impact on production efficiency. In other embodiments, the cutting insert 6 can also be fixed to the cutting tool head 5 by welding. Although this method does not allow for quick tool replacement, it offers higher strength and ensures normal operation.

[0035] In a preferred embodiment, the boring bar 8 is detachably mounted to the boring head 7. During machining, different cutting tools can be selected according to the material and geometric parameters of the raw material 14 of the workpiece. Simultaneously, if a cutting tool is damaged, a tool replacement operation can be quickly completed, avoiding any impact on production efficiency. In other embodiments, the boring bar 8 can also be fixed to the boring head 7 by welding. Although this method does not allow for quick tool replacement, it offers higher strength and ensures normal operation.

[0036] like Figure 4 , 5 As shown, when machining non-metallic seals, the raw material 14, usually a pipe, is first clamped onto the lathe chuck 13. The machining program is prepared according to the product's size requirements. Then, the turning and boring composite tool is installed, and the dial 12 is roughly adjusted according to the requirements to adjust the wall thickness of the part. Trial machining is then performed. After machining 1-2 parts, the parameters of the machined part 15 are checked to see if they meet the requirements. After measuring the wall thickness, the dial 12 is finely adjusted to meet the product's tolerance requirements.

[0037] After adjustment, processing begins. The machine tool starts running, and the raw material 14 begins to rotate. The boring bar 8 and turning bar 6 simultaneously machine the inner and outer walls of the pipe fitting after contacting the raw material 14. When the axial feed distance reaches the width required by the product, the machining program controls the tool to feed radially and cut off the machined part 15, completing the production of a single product. After being cut off, the machined part 15 is inserted into the boring bar 10 for collection. The above process is then repeated to complete the processing of multiple products.

[0038] After machining is completed, the turning and boring compound tool is reset, the machine tool is stopped, the first high-strength tapered end set bolt 2 is loosened to allow the turning tool head 5 to rotate freely, the turning tool head 5 is rotated in the direction 17 shown in the figure to enlarge the opening between the tool holder 1 and the boring bar 10, and the machined part 15 is taken out from the boring bar 10 in the direction 16 shown in the figure.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. The patent protection scope of the present utility model shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present utility model shall also be included within the protection scope of the present utility model.

Claims

1. A turning and boring combined tool, comprising a tool holder, a boring bar is fixedly connected on the tool holder, a boring head is installed on the end of the boring bar away from the tool holder, and a boring blade is arranged on the boring head, characterized in that, The tool holder is provided with a turning tool head, and the turning tool head is provided with a turning tool blade.

2. The combination boring bar according to claim 1, characterized in that The tool holder is provided with a clamping bolt for positioning and fixing the turning tool head.

3. The combination boring bar according to claim 2, wherein The clamping bolt is a taper-end clamping bolt.

4. The combination boring bar according to any one of claims 1-3, characterized in that The boring tool head is provided with a radial screw rod for moving the boring tool blade to change the interval between the turning tool blade and the boring tool blade.

5. The combination boring bar according to claim 4, wherein The end of the screw rod away from the boring tool blade is provided with a scale disc for displaying the interval between the boring tool blade and the turning tool blade.

6. The combination boring bar according to any one of claims 1-3, characterized in that, The boring tool rod is provided with a workpiece collecting section for receiving and storing the workpieces cut by the turning tool.

7. The combination boring bar according to any one of claims 1-3, characterized in that, The tool holder and the boring tool rod are connected by an inner hexagonal bolt.

8. The combination boring bar according to any one of claims 1-3, characterized in that, The boring tool head and the boring tool rod are fixedly connected by a taper-end clamping bolt.

9. The combination boring bar according to any one of claims 1-3, characterized in that, The turning tool blade is detachably installed on the turning tool head.

10. The combination boring bar according to any one of claims 1-3, characterized in that, The boring tool blade is detachably installed on the boring tool head.

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