Threaded tool with variable pitch

Abstract

The utility model discloses a variable lead screw thread tool, including the transverse setting handle and the tool bit, the left end of handle and the position close to bottom position are equipped with the article groove, the inside wall on article groove is rotatably connected with the vertical support of longitudinal arrangement, the one end of vertical support away from article groove inner wall is fixedly connected with the vertical article tray of setting, the one side of article tray away from vertical support and the position close to bottom position are equipped with the accommodating groove corresponding with the tool bit appearance, the tool bit is placed in accommodating groove, the lower extreme of tool bit penetrates accommodating groove, the one side of tool bit away from article tray is equipped with first locking screw, the tool bit is fixed with article tray through first locking screw, the outside wall on vertical support is fixedly sleeved with gear.

Description

Technical Field

[0001] This utility model relates to the field of cutting tool technology, and in particular to a threading tool with variable lead. Background Technology

[0002] Threading tools are specialized tools used in machining to create threads. They form spiral patterns on the surface of a workpiece through cutting, extrusion, and other methods. They are widely used in machinery manufacturing, automotive, aerospace and other fields. Their core function is to process various standard or non-standard threads (such as triangular and trapezoidal threads), and they need to match the thread pitch, lead, tooth angle and other parameters.

[0003] The cutting head of existing threading tools is usually fixedly mounted on the tool holder, and the angle cannot be adjusted during use. Its functionality needs further optimization and improvement. Utility Model Content

[0004] The purpose of this invention is to solve the problems mentioned in the background art and to propose a threading tool with variable lead.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A variable lead threading tool includes a transversely arranged shank and a cutting head. A storage slot is provided at the left end of the shank near the bottom. A longitudinally arranged support is rotatably connected to the inner wall of the storage slot. A vertically arranged storage tray is fixedly connected to the end of the support away from the inner wall of the storage slot. A receiving groove corresponding to the shape of the cutting head is provided on the side of the storage tray away from the support and near the bottom. The cutting head is placed in the receiving groove, and the lower end of the cutting head penetrates the receiving groove. A first locking screw is provided on the side of the cutting head away from the storage tray. The cutting head is secured by a second locking screw. A locking screw is fixed to the storage tray. A gear is fixedly sleeved on the outer wall of the support column. A horizontally arranged movable plate is slidably connected to the inner top of the storage slot. A rack that meshes with the gear is fixedly connected to the lower side wall of the movable plate. A slot is provided on the inner right side wall of the storage slot. The right end of the movable plate slides into the slot. A horizontally arranged lead screw is inserted into the right end of the movable plate. The lead screw and the movable plate are connected by a thread. The end of the lead screw away from the movable plate passes through the knife handle and is fixedly connected to a knob. The lead screw and the knife handle are rotatably connected.

[0007] Preferably, two horizontally arranged guide rods are slidably inserted into the left end of the movable plate, and a support block is fixedly connected to the left end of the guide rod. The upper end of the support block is fixedly connected to the inner top of the storage groove.

[0008] Preferably, a support ring is rotatably sleeved on the lead screw, and one side of the support ring is fixedly connected to the inner right side wall of the slot.

[0009] Preferably, a second locking screw is inserted into the outer wall of the knob near the edge, and the second locking screw is threadedly connected to the knob. The right end of the knife handle has a plurality of slots in a ring shape corresponding to the second locking screw.

[0010] Preferably, the outer wall of the knob is provided with an internal hexagonal groove.

[0011] Preferably, the gear and rack are designed with a small module and fine tooth pitch.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This utility model, through the coordinated design of structures such as knobs, lead screws, movable plates, racks, gears, supports, and storage trays, can flexibly adjust the tilt angle of the cutter head, thereby achieving variable lead and significantly improving functionality.

[0014] This utility model utilizes the cooperation between the second locking screw and the slot to facilitate users in locking the knob position and effectively prevent loosening; at the same time, the design of the internal hexagonal slot makes it easy for users to operate the knob with an internal hexagonal wrench, greatly improving the ease of use.

[0015] This utility model, by setting up a support column, a storage tray and other mechanisms, can realize the adjustment of the cutter head angle, thereby achieving a variable lead effect, and at the same time has an anti-loosening function, thus improving both functionality and reliability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a thread cutting tool with variable lead proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of a thread cutting tool with variable lead proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the structure at point A of a thread cutting tool with variable lead proposed in this utility model.

[0019] Figure 4 This is a bottom view schematic diagram of the movable plate structure of a thread cutter with variable lead proposed in this utility model.

[0020] In the diagram: 1-handle, 2-support column, 3-storage tray, 4-blade head, 5-first locking screw, 6-moving plate, 7-guide rod, 8-support block, 9-support ring, 10-lead screw, 11-knob, 12-internal hex socket, 13-second locking screw, 14-gear. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-4 A variable lead threading tool includes a horizontally arranged tool holder 1 and a tool head 4. A storage groove is provided at the left end of the tool holder 1 near the bottom. A vertically arranged support column 2 is rotatably connected to the inner wall of the storage groove to support a storage tray 3. A vertically arranged storage tray 3 is fixedly connected to the end of the support column 2 away from the inner wall of the storage groove to support the tool head 4. A receiving groove corresponding to the shape of the tool head 4 is provided on the side of the storage tray 3 away from the support column 2 near the bottom. The tool head 4 is placed in the receiving groove. The lower end of the tool head 4 passes through the receiving groove. A first locking screw 5 is provided on the side of the tool head 4 away from the storage tray 3 to fix the tool head 4. The tool head 4 is fixed to the storage tray 3 by the first locking screw 5.

[0023] In this embodiment, a gear 14 is fixedly sleeved on the outer side wall of the support column 2 to drive the support column 2 to rotate. A horizontally arranged movable plate 6 is slidably connected to the inner top of the storage slot to drive the rack to move. A rack that meshes with the gear 14 is fixedly connected to the lower side wall of the movable plate 6 to drive the gear 14 to rotate. The gear 14 and the rack adopt a small module and fine tooth pitch design to improve meshing accuracy. Two horizontally arranged guide rods 7 are slidably inserted at the left end of the movable plate 6 to guide the movement of the movable plate 6. A support block 8 is fixedly connected to the left end of the guide rod 7 to support the guide rod 7. The upper end of the support block 8 is fixedly connected to the inner top of the storage slot.

[0024] In this embodiment, a slot is provided on the inner right side wall of the storage slot. The right end of the movable plate 6 slides into the slot. A horizontally arranged lead screw 10 is inserted into the right end of the movable plate 6 to drive the movable plate 6 to move. The lead screw 10 and the movable plate 6 are connected by a thread. The end of the lead screw 10 away from the movable plate 6 passes through the knife handle 1 and is fixedly connected to a knob 11 to drive the lead screw 10 to rotate. The lead screw 10 and the knife handle 1 are connected by a rotatable connection. A support ring 9 is rotatably sleeved on the lead screw 10 to support the lead screw 10. One side of the support ring 9 is fixedly connected to the inner right side wall of the slot.

[0025] In this embodiment, a second locking screw 13 is inserted into the outer wall of the knob 11 near the edge, which is used to screw into the slot to lock the knob 11 and prevent loosening. The second locking screw 13 and the knob 11 are connected by threads. The right end of the handle 1 has a number of slots in a ring shape corresponding to the second locking screw 13. The outer wall of the knob 11 is provided with an internal hexagonal groove 12, which is used to facilitate the user to insert an internal hexagonal wrench to rotate the knob 11.

[0026] In this embodiment, the knob 11 is first manually rotated to drive the lead screw 10 to rotate. The lead screw 10 drives the movable plate 6 to move left and right through threaded engagement (the direction of movement is controlled by the forward and reverse rotation of the knob 11). The movable plate 6 drives the rack to move synchronously. The rack drives the gear 14 and the support column 2 to rotate. The support column 2 drives the tray 3 to rotate, thereby enabling the cutter head 4 to adjust its angle and achieve variable lead function. The gear 14 and the rack adopt a small module and fine pitch design, which effectively improves the adjustment accuracy.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A threading tool with variable lead, comprising a transversely arranged tool holder (1) and a tool head (4), characterized in that: A storage slot is provided at the left end of the handle (1) near the bottom. A longitudinally arranged support column (2) is rotatably connected to the inner wall of the storage slot. A vertically arranged storage tray (3) is fixedly connected to the end of the support column (2) away from the inner wall of the storage slot. A receiving groove corresponding to the shape of the blade head (4) is provided on the side of the storage tray (3) away from the support column (2) and near the bottom. The blade head (4) is placed in the receiving groove, and the lower end of the blade head (4) passes through the receiving groove. A first locking screw (5) is provided on the side of the blade head (4) away from the storage tray (3). The blade head (4) is fixed to the storage tray (3) by the first locking screw (5). 2) A gear (14) is fixedly sleeved on the outer side wall. A horizontally arranged movable plate (6) is slidably connected to the inner top of the storage slot. A rack that meshes with the gear (14) is fixedly connected to the lower side wall of the movable plate (6). A slot is provided on the inner right side wall of the storage slot. The right end of the movable plate (6) slides into the slot. A horizontally arranged lead screw (10) is inserted into the right end of the movable plate (6). The lead screw (10) and the movable plate (6) are connected by a thread. The end of the lead screw (10) away from the movable plate (6) passes through the handle (1) and is fixedly connected to a knob (11). The lead screw (10) and the handle (1) are connected by a rotation.

2. The threading tool with variable lead according to claim 1, characterized in that: Two horizontally arranged guide rods (7) are slidably inserted into the left end of the movable plate (6). A support block (8) is fixedly connected to the left end of the guide rod (7). The upper end of the support block (8) is fixedly connected to the inner top of the storage groove.

3. A threading tool with variable lead according to claim 1, characterized in that: A support ring (9) is rotatably sleeved on the lead screw (10), and one side of the support ring (9) is fixedly connected to the inner right side wall of the slot.

4. A threading tool with variable lead according to claim 1, characterized in that: A second locking screw (13) is inserted into the outer wall of the knob (11) near the edge. The second locking screw (13) is threadedly connected to the knob (11). The right end of the handle (1) has multiple slots corresponding to the second locking screw (13) arranged in a ring.

5. A threading tool with variable lead according to claim 1, characterized in that: The knob (11) has an internal hexagonal groove (12) on its outer side wall.

6. A threading tool with variable lead according to claim 1, characterized in that: The gear (14) and rack are designed with small module and fine pitch.

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