Thread sleeving device for lathe tapping

Abstract

The threading device for lathe tapping comprises a flange plate, the flange plate is of an integrated structure composed of a flange plate and a connecting sleeve coaxially and fixedly connected with the flange plate, the connecting sleeve is coaxially fixed to a lathe tailstock through a connecting assembly, a three-jaw chuck is coaxially and fixedly connected to the flange plate, and the three-jaw chuck is coaxially and fixedly connected to the connecting assembly. And the threading die or the screw tap is detachably clamped on the three-jaw chuck. The connecting assembly used for being connected with the flange plate is arranged on the lathe tailstock, and the three-jaw chuck used for detachably clamping plate threads or screw taps is fixed on the flange plate, so that the three-jaw chuck can directly clamp different types of screw taps or screw dies; the screw tap and the threading die are convenient to assemble and disassemble, the problem that the screw tap and the threading die need to be clamped with matched chucks on a lathe is solved, the screw tap and the threading die can be rapidly clamped without the chucks when replaced, the replacement efficiency is greatly improved, the defects that the screw tap, the threading die and the chucks are disordered and difficult to find and arrange on site are overcome, the structure is simple, the design is novel, assembly and disassembly are convenient and rapid, and the use value is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of lathe processing, and in particular relates to a threading device for lathe tapping. Background Art

[0002] At present, the tapping tools on lathes mainly include dies and taps. Each type of die and tap has a matching chuck. When in use, they need to be replaced according to the tapping type and size on the workpiece. Not only the tap and die need to be replaced, but also the corresponding chuck needs to be replaced. Due to the wide variety of taps and dies, each replacement and clamping is inconvenient, time-consuming and labor-intensive. Therefore, it is necessary to make improvements to the above problems. Utility Model Content

[0003] The technical problem solved by the utility model is to provide a threading device for lathe tapping, by arranging a connecting component for connecting with a flange on the tailstock of the lathe, and fixing a three-jaw chuck for detachably clamping a die or a tap on the flange, so that the three-jaw chuck can directly clamp taps or dies of different types, thus solving the inconvenience that the taps and dies need to be clamped on the lathe with matching chucks respectively. When the taps and dies are replaced, they can be quickly clamped without a chuck, thus greatly improving the replacement efficiency, eliminating the disadvantages of the taps, dies and chucks being confusing and difficult to find and organize on site, and having a simple structure, novel design, convenient and quick disassembly and assembly, and high use value.

[0004] The technical solution adopted by the utility model is as follows: a threading device for a lathe tapping includes a flange, wherein the flange adopts an integrated structure consisting of a flange plate and a connecting sleeve coaxially fixed to the flange plate, the connecting sleeve is coaxially fixed to the tailstock of the lathe through a connecting assembly, a three-jaw chuck is coaxially fixed to the flange plate, and a die or a tap is detachably clamped on the three-jaw chuck.

[0005] Wherein, the connecting assembly includes a connecting shaft and a Morse sleeve, one end of the connecting shaft is coaxially fixedly connected to the connecting sleeve, and the other end of the connecting shaft is adaptably connected to one end of the Morse sleeve, and the other end of the Morse sleeve is adaptably connected to the tailstock of the lathe.

[0006] Furthermore, a section of the connecting shaft that is connected to the connecting sleeve is an equal-diameter section, and the section connected to the Morse sleeve is a conical section that is adapted to the tapered hole of the Morse sleeve. The transition connection position between the equal-diameter section and the conical section of the connecting shaft forms a positioning shoulder for positioning the connecting sleeve that is adapted to be connected to the equal-diameter section on the connecting shaft.

[0007] Furthermore, the connecting shaft equal diameter section is connected to the connecting sleeve via a key.

[0008] Furthermore, a centering convex ring is concentrically provided on the outer plate surface of the flange plate, and the centering groove on the corresponding surface of the three-jaw chuck is adapted to the centering convex ring and is fixed to the flange plate by bolts.

[0009] The advantages of this utility model compared with the prior art:

[0010] 1. This technical solution provides a connection assembly for connecting with a flange on the tailstock of a lathe, and fixes a three-jaw chuck for detachably clamping a die or a tap on the flange, thereby realizing direct clamping of different types of taps or dies by the three-jaw chuck, thus solving the inconvenience that the taps and dies need to be clamped on the lathe with matching chucks respectively;

[0011] 2. This technical solution uses a Morse sleeve and a connecting shaft that is plugged into the Morse sleeve to connect the flange with the three-jaw chuck to the tailstock of the machine tool. When the die or tap is tapping the workpiece, the axial pressure generated during the axial feeding process can reliably fix the connecting shaft and the Morse sleeve, and the Morse sleeve and the tailstock of the machine tool, thereby ensuring the stability and reliability of the connection and improving the tapping quality of the workpiece.

[0012] 3. This technical solution allows for quick clamping of taps and dies without the need for a chuck when replacing them, greatly improving replacement efficiency and eliminating the problem of difficult-to-find and difficult-to-sort taps, dies and chucks on site. It has a simple structure, novel design, convenient and quick disassembly and assembly, and high use value. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model when fixing the die;

[0014] Figure 2 It is a cross-sectional view of the utility model when the die is fixed;

[0015] Figure 3 It is a schematic diagram of the three-dimensional structure of the utility model when fixing the tap;

[0016] Figure 4 It is a cross-sectional view of the utility model when fixing the tap. DETAILED DESCRIPTION

[0017] The following will be combined with the embodiment of the present utility model Figure 1-4 , clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] It should be noted that, in this document, unless otherwise stated, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc., are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0019] In this document, the terms "comprises", "comprising" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further limitations. The elements defined by the sentence "comprising a ..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements.

[0020] Lathe tapping with threading device, such as Figure 1-4 As shown, it includes a flange 1, and the flange 1 is an integrated structure composed of a flange plate 1-1 and a connecting sleeve 1-2 coaxially fixedly connected to the flange plate 1-1. The connecting sleeve 1-2 is coaxially fixed to the tailstock of the lathe through a connecting assembly. A three-jaw chuck 2 is coaxially fixedly connected to the flange plate 1-1, and a die 3 or a tap 4 is detachably clamped on the three-jaw chuck 2. In the above structure, by arranging a connecting assembly for connecting with the flange 1 on the tailstock of the lathe, and fixing the three-jaw chuck 2 for detachably clamping the die 3 or the tap 4 on the flange 1, the three-jaw chuck 2 is directly clamped on taps 4 or dies 3 of different models, which solves the inconvenience that the tap 4 and the die 3 need to be clamped on the lathe with matching chucks respectively.

[0021] The specific structure of the connecting component is as follows: the connecting component includes a connecting shaft 5 and a Morse sleeve 6, wherein the Morse sleeve 6 adopts a No. 5 Morse sleeve, one end of the connecting shaft 5 is coaxially fixedly connected to the connecting sleeve 1-2 to ensure stability during rotation, and the other end of the connecting shaft 5 is adaptably connected to one end of the Morse sleeve 6, and the other end of the Morse sleeve 6 is adaptably connected to the tailstock of the lathe.

[0022] The specific structure of the connecting shaft 5 is as follows: a section of the connecting shaft 5 connected to the connecting sleeve 1-2 is an equal-diameter section, and the section connected to the Morse sleeve 6 is a conical section adapted to the tapered hole of the Morse sleeve 6, and the transition connection position between the equal-diameter section and the conical section of the connecting shaft 5 forms a positioning shoulder for positioning the connecting sleeve 1-2 adapted to the equal-diameter section on the connecting shaft 5; specifically, the equal-diameter section of the connecting shaft 5 is connected to the connecting sleeve 1-2 by a key.

[0023] In the above structure, the flange 1 equipped with the three-jaw chuck 2 is connected to the tailstock of the machine tool by using a Morse sleeve 6 and a connecting shaft 5 adapted to be plugged into the Morse sleeve 6. When the die 3 or the tap 4 is tapping the workpiece, the connecting shaft 5 and the Morse sleeve 6, and the Morse sleeve 6 and the tailstock of the machine tool are reliably fixed by the axial pressure generated during the axial feeding process, and the friction between the connecting shaft 5 and the Morse sleeve 6, and the Morse sleeve 6 and the tailstock of the machine tool is used to eliminate the torque under the high-speed rotating workpiece, thereby ensuring the connection stability and reliability and improving the tapping quality of the workpiece.

[0024] Among them, the concentric positioning structure of the three-jaw chuck 2 on the flange plate 1-1 is specifically as follows: a centering convex ring 1-3 is concentrically provided on the outer plate surface of the flange plate 1-1, and the centering groove on the corresponding surface of the three-jaw chuck 2 is adapted to the centering convex ring 1-3 and fixed to the flange plate 1-1 by bolts.

[0025] During installation, the Morse sleeve 6 is inserted into the tapered hole of the tailstock of the machine tool, and the tapered section of the connecting shaft 5 is inserted into the tapered hole of the Morse sleeve 6. The equal-diameter section of the connecting shaft 5 is connected to the connecting sleeve 1-2 through a key, which plays a role in positioning the connecting shaft 5 and the connecting sleeve 1-2, avoiding mutual rotation between the two, and improving the connection stability. After the three-jaw chuck 2 equipped with the die 3 or the tap 4 is reliably fixed on the flange plate 1-1, the workpiece in the first rotating process contacts the die 3 and the tap 4, and the tailstock of the machine tool drives the three-jaw chuck 2 and the die 3 or the tap 4 to feed axially toward the workpiece through the connecting assembly, the tapping of the workpiece is realized; Figure 1-2 3-4 is a schematic diagram of the structure of the present technical solution when the die 3 is reliably clamped, and 3-4 is a schematic diagram of the structure of the present technical solution when the tap 4 is reliably clamped.

[0026] The technical solution allows the tap 4 and the die 3 to be quickly clamped without a chuck when they are replaced, greatly improving the replacement efficiency and eliminating the drawbacks of the tap 4, the die 3 and the chuck being messy and difficult to find and organize on site. The solution has a simple structure, a novel design, is convenient and quick to disassemble and assemble, and has a high use value.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0028] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A threading device for a lathe, characterized in that: The invention comprises a flange (1), wherein the flange (1) is an integrated structure consisting of a flange plate (1-1) and a connecting sleeve (1-2) coaxially fixedly connected to the flange plate (1-1), wherein the connecting sleeve (1-2) is coaxially fixed to the tailstock of a lathe through a connecting assembly, a three-jaw chuck (2) is coaxially fixedly connected to the flange plate (1-1), and a die (3) or a tap (4) is detachably clamped on the three-jaw chuck (2).

2. The threading device for lathe tapping according to claim 1, characterized in that: The connection assembly comprises a connection shaft (5) and a Morse sleeve (6); one end of the connection shaft (5) is coaxially fixedly connected to the connection sleeve (1-2), and the other end of the connection shaft (5) is adaptively connected to one end of the Morse sleeve (6); and the other end of the Morse sleeve (6) is adaptively connected to the tailstock of a lathe.

3. The threading device for lathe tapping according to claim 2, characterized in that: The section of the connecting shaft (5) connected to the connecting sleeve (1-2) is an equal-diameter section, and the section connected to the Morse sleeve (6) is a tapered section adapted to the tapered hole of the Morse sleeve (6). The transition connection position between the equal-diameter section and the tapered section of the connecting shaft (5) forms a positioning shoulder for positioning the connecting sleeve (1-2) adapted to be connected to the equal-diameter section on the connecting shaft (5).

4. The threading device for lathe tapping according to claim 3, characterized in that: The equal-diameter section of the connecting shaft (5) is connected to the connecting sleeve (1-2) via a key.

5. The threading device for lathe tapping according to claim 1, characterized in that: A centering convex ring (1-3) is concentrically arranged on the outer plate surface of the flange plate (1-1), and a centering groove on a corresponding surface of the three-jaw chuck (2) is matched with the centering convex ring (1-3) and fixed to the flange plate (1-1) by bolts.

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