A tooth height adjustment component and a pipe threading lathe

Abstract

This application relates to the technical field of pipe threading equipment, specifically providing a tooth height adjustment component and a pipe threading lathe, including a tool holder, a threading tool holder, and at least one wedge-shaped mounting block; the tool holder has a mounting groove; the threading tool holder is detachably mounted in the mounting groove; the wedge-shaped mounting block is disposed in the mounting groove and contacts the outer side wall of the threading tool holder and the inner side wall of the mounting groove to change the radial angle between the axis of the threading tool holder and the workpiece to be processed. By adding a wedge-shaped mounting block in the mounting groove of the tool holder, the radial angle between the tool axis and the workpiece to be processed is changed, thereby ensuring that the thread tooth height meets the requirements. The wedge-shaped mounting block is wider at one end and narrower at the other end, and its outer surface is inclined. By matching the inclined surface with the outer surface of the worn threading tool holder, the effect of adjusting the thread height of the workpiece is achieved.

Description

Technical Field

[0001] This application relates to the field of pipe threading equipment technology, and in particular to a tooth height adjustment component and a pipe threading lathe. Background Technology

[0002] When machining threads on oil pipes, the cutting tool needs to be fixed so that the oil pipe rotates to contact the tool and thus produce threads. The iron filings generated during machining will wear down the tool holder, causing the angle of the tool holder to change and resulting in deviations in the height of the machined thread teeth.

[0003] In related technologies, traditional tool holders need to be replaced as a whole after wear, which results in high maintenance costs and long downtime. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this application is to provide a tooth height adjustment component and a pipe threading lathe, which aims to solve the problem of changes in thread tooth height caused by wear of existing pipe threading tools.

[0005] The technical solution adopted by this application to solve the technical problem is as follows: A tooth height adjustment component, comprising:

[0006] The tool holder is provided with a mounting groove;

[0007] A threading tool holder, which is detachably mounted in the mounting slot;

[0008] At least one wedge-shaped mounting block is disposed in the mounting groove and contacts the outer side wall of the thread cutter bar and the inner side wall of the mounting groove to change the radial angle between the axis of the thread cutter bar and the workpiece to be processed.

[0009] Optionally, the number of wedge-shaped mounting blocks is greater than or equal to two, and the outer side wall of the wedge-shaped mounting blocks is provided with corresponding combination structures to connect the wedge-shaped mounting blocks.

[0010] The combined structure includes a magnetic component embedded in the wedge-shaped mounting block.

[0011] Optionally, the tool holder is provided with a plurality of mounting screw holes, which are connected to the mounting groove. Each mounting screw hole is provided with a fixing bolt, and the fixing bolt is in contact with the outer wall of the threaded tool or the wedge-shaped mounting block.

[0012] Optionally, the wedge-shaped mounting block includes a first straight plate and a second straight plate, which are connected by a pivot. An angle adjustment structure is provided between the first straight plate and the second straight plate. The angle adjustment structure includes an adjustment block and an adjustment bolt. The adjustment block has an elongated hole and is located on the side wall of the first straight plate. The adjustment bolt passes through the elongated hole and is fixed to the side wall of the second straight plate.

[0013] Optionally, the angle of the wedge-shaped mounting block is 5° to 30°.

[0014] Optionally, the outer side walls of two adjacent wedge-shaped mounting blocks are respectively provided with matching positioning grooves and positioning blocks, and the positioning blocks are disposed in the positioning grooves to prevent the two wedge-shaped mounting blocks from sliding relative to each other.

[0015] Optionally, the mounting slot is configured as a U-shaped slot.

[0016] Optionally, the surface of the wedge-shaped mounting block is covered with an anti-slip layer.

[0017] Another technical solution adopted by this application to solve the technical problem is a pipe threading lathe, including the tooth height adjustment component as described in any of the preceding claims.

[0018] Compared with the prior art, the embodiments of this application, by adding a wedge-shaped mounting block in the mounting groove of the tool holder, change the radial angle between the tool axis and the workpiece to be machined, thereby ensuring that the thread tooth height meets the requirements. The wedge-shaped mounting block is wide at one end and narrower at the other end, and its outer surface is inclined. By matching the inclined surface with the outer surface of the worn thread shank, the effect of adjusting the thread height of the workpiece is achieved. Attached Figure Description

[0019] Figure 1 This is a front view of a tooth height adjustment component according to this application;

[0020] Figure 2 This is a side view of a tooth height adjustment component according to this application;

[0021] Figure 3 This is a front view of the wedge-shaped mounting block in the embodiments of this application;

[0022] Figure 4 This is a top view of the wedge-shaped mounting block in the embodiments of this application;

[0023] Figure 5 This is a side view of the wedge-shaped mounting block in an embodiment of this application;

[0024] Figure 6 This is a front view of the tool holder in an embodiment of this application;

[0025] Figure 7This is a top view of the tool holder in an embodiment of this application;

[0026] Figure 8 This is a side view of the tool holder in an embodiment of this application.

[0027] Explanation of reference numerals in the attached figures:

[0028] 10. Tool holder; 11. Fixing bolt; 12. Mounting slot; 20. Threaded tool holder; 30. Wedge-shaped mounting block. Detailed Implementation

[0029] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0030] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0031] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] The thread cutter 20 is fixed on one side of the rotating tube workpiece. By adjusting the position of the tool holder 10, the thread cutter 20 is brought closer to the tube body, and then threads are cut on the tube body. After a period of use, the cutting chips wear the thread cutter 20, causing the cutting edge angle of the thread cutter 20 to move inward, making it impossible to cut threads fully. When the tool holder 10 processes the tube body at the same position, the height of the thread teeth produced is still inconsistent.

[0033] like Figures 1 to 2 As shown, Figure 1 The paper presents a front view of a tooth height adjustment assembly, including a tool holder 10, a threading shank 20, and a wedge-shaped mounting block 30. The tool holder 10 has a mounting groove 12. The threading shank 20 is detachably mounted in the mounting groove 12. The wedge-shaped mounting block 30 is disposed in the mounting groove 12 and contacts the outer side wall of the threading shank 20 and the inner side wall of the mounting groove 12 to change the radial angle between the axis of the threading shank 20 and the workpiece to be processed. The tool holder 10 is generally concave, forming the mounting groove 12. The axis of the threading shank 20 is disposed in the mounting groove 12 in the same direction as the extension of the mounting groove 12.

[0034] The determination of tooth height deviation is specifically reflected in the change of the thread size of the workpiece. A special measuring instrument, tooth height meter, is used to measure it. The tooth height of the machined thread is corrected by matching the angle of wear of the thread cutter shank 20 with the inclined surface of the wedge mounting block 30.

[0035] In this embodiment, the wedge-shaped mounting block 30 is made of metal, which allows the thread cutter bar 20 to remain stable during processing and prevents the thread cutter bar 20 from loosening due to compression deformation caused by the wedge-shaped mounting.

[0036] like Figures 3 to 5 As shown, specifically, the wedge-shaped mounting block 30 is a long plate with one end high and the other end low. The cross-sectional profile of the wedge-shaped mounting block 30 along its length is a right-angled triangle, and the straight edge fits against the inner wall of the mounting groove 12.

[0037] In some embodiments, the number of wedge-shaped mounting blocks 30 is greater than or equal to two, and corresponding combination structures are provided on the outer walls of the wedge-shaped mounting blocks 30 to connect them. When used in combination, the narrow ends of multiple wedge-shaped mounting blocks 30 are stacked, causing the total included angle of the multiple wedge-shaped mounting blocks 30 to gradually increase. The combination structure can combine the wedge-shaped mounting blocks 30 together, and the connection can be achieved using structures such as double-headed bolts or snap-fit ​​devices. Specifically, in this embodiment, the combination structure includes magnetic components embedded in the wedge-shaped mounting blocks 30. By setting matching magnetic components, multiple wedge-shaped mounting blocks 30 can form a larger wedge-shaped mounting block 30. During splicing, the inclined edges and straight edges of the two wedge-shaped mounting blocks 30 contact each other.

[0038] In some embodiments, such as Figure 6 and Figure 8 As shown, the tool holder 10 has multiple mounting screw holes, which communicate with the mounting groove 12. Each mounting screw hole contains a fixing bolt 11, which contacts the outer wall of the thread cutting tool or the wedge-shaped mounting block 30. By tightening or loosening the fixing bolts 11, the thread cutting tool and the wedge-shaped mounting block 30 are pressed into the mounting groove 12, or can be disengaged from the mounting groove 12, thus conveniently achieving angle adjustment of the thread cutting tool and improving the efficiency of adjusting the thread tooth height.

[0039] In some embodiments, the wedge-shaped mounting block 30 includes a first straight plate and a second straight plate, which are connected by a pivot. An angle adjustment structure is provided between the first straight plate and the second straight plate. The angle adjustment structure includes an adjustment block and an adjustment bolt. The adjustment block has an elongated hole and is disposed on the side wall of the first straight plate. The adjustment bolt passes through the elongated hole and is fixed to the side wall of the second straight plate.

[0040] In some embodiments, the angle of the wedge-shaped mounting block 30 is 5° to 30°. The angle of the wedge-shaped mounting block 30 refers to the included angle at its narrow end.

[0041] In some embodiments, the outer sidewalls of two adjacent wedge-shaped mounting blocks 30 are respectively provided with matching positioning grooves and positioning blocks. The positioning blocks are disposed in the positioning grooves to prevent the two wedge-shaped mounting blocks 30 from sliding relative to each other. Specifically, the positioning block can be an arc-shaped protrusion, and the corresponding positioning groove is a semi-circular groove; or the positioning block can be a long strip-shaped protrusion, which facilitates the quick assembly of the two wedge-shaped mounting blocks 30 together.

[0042] like Figure 7 As shown, in some embodiments, the mounting groove 12 is configured as a U-shaped groove. The inner sidewall of the mounting groove 12 can be either a rounded transition or a right-angle transition.

[0043] In some embodiments, the surface of the wedge-shaped mounting block 30 is covered with an anti-slip layer. The anti-slip layer can be made of rubber or silicone, or it can have a special physical structure, such as multiple grooves provided on the surface of the wedge-shaped mounting block 30.

[0044] This application also proposes a pipe threading lathe, including the tooth height adjustment assembly described above. This pipe threading lathe possesses all the beneficial effects described above, which will not be repeated here.

[0045] This embodiment of the application adds a wedge-shaped mounting block 30 in the mounting groove 12 of the tool holder 10 to change the radial angle between the tool axis and the workpiece to be machined, thereby ensuring that the thread tooth height meets the requirements. The wedge-shaped mounting block is wide at one end and narrow at the other end, and its outer surface is inclined. By matching the inclined surface with the outer surface of the worn thread shank 20, the effect of adjusting the thread height of the workpiece is achieved.

[0046] It should be understood that the application of this application is not limited to the examples above. Those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A tooth height adjustment assembly, characterized by, include: The tool holder is provided with a mounting groove; A threading tool holder, which is detachably mounted in the mounting slot; At least one wedge-shaped mounting block is disposed in the mounting groove and contacts the outer side wall of the thread cutter bar and the inner side wall of the mounting groove to change the radial angle between the axis of the thread cutter bar and the workpiece to be processed.

2. The tooth height adjustment assembly of claim 1, wherein, The number of wedge-shaped mounting blocks is greater than or equal to two, and the outer side wall of the wedge-shaped mounting blocks is provided with corresponding combination structures to connect the wedge-shaped mounting blocks.

3. The tooth height adjustment assembly of claim 2, wherein, The combined structure includes a magnetic component embedded in the wedge-shaped mounting block.

4. The tooth height adjustment assembly of claim 1, wherein, The tool holder is provided with multiple mounting screw holes, which are connected to the mounting groove. Each mounting screw hole is provided with a fixing bolt, and the fixing bolt is in contact with the outer wall of the threaded tool bar or the wedge-shaped mounting block.

5. The tooth height adjustment assembly of claim 1, wherein, The wedge-shaped mounting block includes a first straight plate and a second straight plate, which are connected by a pivot. An angle adjustment structure is provided between the first straight plate and the second straight plate. The angle adjustment structure includes an adjustment block and an adjustment bolt. The adjustment block has an elongated hole and is located on the side wall of the first straight plate. The adjustment bolt passes through the elongated hole and is fixed to the side wall of the second straight plate.

6. The tooth height adjustment assembly according to claim 1, characterized in that, The angle of the wedge-shaped mounting block is 5°~30°.

7. The tooth height adjustment assembly of claim 1, wherein, The outer walls of two adjacent wedge-shaped mounting blocks are respectively provided with matching positioning grooves and positioning blocks. The positioning blocks are set in the positioning grooves to prevent the two wedge-shaped mounting blocks from sliding relative to each other.

8. The tooth height adjustment assembly of claim 1, wherein, The mounting slot is configured as a U-shaped slot.

9. The tooth height adjustment assembly of claim 1, wherein, The surface of the wedge-shaped mounting block is covered with an anti-slip layer.

10. A pipe threading lathe characterized by, Includes the tooth height adjustment component as described in any one of claims 1-9.

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