Cutting tool bar with replaceable blade

Abstract

The cutter bar comprises a cutter handle and the blade, a containing groove is formed in the position, close to the left side edge, of the upper end of the cutter handle, the blade is placed in the containing groove, a first locking screw is arranged at the upper end of the blade, and the blade is fixed to the cutter handle through the first locking screw. A sliding groove is formed in the lower end of the knife handle, a supporting block is slidably connected to the inner side wall of the sliding groove, the lower end of the supporting block penetrates through the sliding groove, a plurality of vertically-arranged supporting columns are arranged at the upper end of the supporting block in an inserted mode from left to right, the supporting columns are in threaded connection with the supporting block, and a transversely-formed storage groove is formed in the knife handle. The upper end of the supporting column penetrates through the cutter handle and is fixedly connected with a second gear, and the second gear is located in the containing groove. Through the arrangement of the supporting block, the supporting column and other mechanisms, improvement and optimization are conducted on the basis that the blade can be replaced, the cutter handle can be accurately adjusted to the needed height, the anti-loosening effect is achieved, and the good market prospect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of tool holder technology, and in particular to a cutting tool holder with replaceable cutting blades. Background Technology

[0002] Cutting tool holders are basic components used to mount cutting inserts in machining. They are the core support structure of the tool system. Their main function is to provide a positioning reference and clamping force for the inserts and to transmit the power of the machine tool to achieve cutting motion. Depending on the type of machining, cutting tool holders can be divided into turning tool holders, milling tool holders, boring tool holders, etc., and are adapted to inserts of different shapes (such as turning inserts and milling inserts).

[0003] When installing a tool holder on a lathe tool post, the height is usually adjusted using shims to ensure that the tool tip is at the same height as the spindle centerline. However, since the shim size is fixed, the adjustment accuracy is poor, the precision is limited by the shim thickness, and repeated adjustments can easily lead to shim wear or misalignment. Utility Model Content

[0004] The purpose of this invention is to solve the problems mentioned in the background art and to provide a cutting tool holder with replaceable blades.

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

[0006] A replaceable-blade cutting tool holder includes a tool holder and a blade. The tool holder has a placement groove at its upper end near the left edge, where the blade is placed. A first locking screw is located at the upper end of the blade, fixing it to the tool holder. The lower end of the tool holder has a sliding groove, with a support block slidably connected to its inner wall. The lower end of the support block passes through the sliding groove. Multiple vertically arranged support columns are inserted from left to right at the upper end of the support block, with a threaded connection between the support columns and the support block. A horizontally arranged storage slot is located inside the tool holder. The upper end of each support column passes through the tool holder and is fixedly connected to a second gear, which is located within the storage slot. A horizontally arranged rotating rod is located within the storage slot. A first gear meshing with the second gear is fixedly sleeved on the rotating rod. The left end of the rotating rod is rotatably connected to the inner wall of the storage slot, and the other end of the rotating rod passes through the tool holder and is fixedly connected to a knob.

[0007] Preferably, a connecting ring is rotatably sleeved on the support column, the upper end of the connecting ring is fixedly connected to the inner top of the slide groove, and an annular groove is provided on the outer side wall of the support column. A first support ring is rotatably connected to the inner side wall of the groove, and the outer side wall of the first support ring passes through the groove and is fixedly connected to the inner side wall of the connecting ring.

[0008] Preferably, a second support ring is rotatably sleeved on the rotating rod, and the outer side wall of the second support ring is fixedly connected to the inner left side wall of the storage groove.

[0009] Preferably, a plurality of vertically arranged guide rods are slidably inserted into the upper end of the support block, and the upper end of the guide rods is fixedly connected to the inner top of the slide groove.

[0010] Preferably, a second locking screw is inserted on the side of the knob away from the rotating rod and 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.

[0011] Preferably, the end of the knob away from the rotating rod is provided with an internal hexagonal groove.

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

[0013] This utility model, through the coordinated design of components such as the first locking screw, support block, support column, second gear, first gear, rotating rod, and knob, enables users to precisely adjust the height of the handle while allowing for blade replacement, thus greatly improving ease of use and practicality.

[0014] This utility model utilizes multiple support pillars to evenly distribute the force, ensuring the stability of the knife handle during use; at the same time, the second locking screw and the slot cooperate with each other to effectively limit and prevent the knob from loosening, significantly enhancing the reliability during use.

[0015] This utility model improves and optimizes the replaceable blade by setting up mechanisms such as support blocks and pillars. It can accurately adjust the handle to the required height and has an anti-loosening effect, which has good market prospects. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a cutting tool holder with replaceable blades proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the structure at point A of a cutting shank with replaceable blades proposed in this utility model;

[0018] Figure 3 This is a top view schematic diagram of a cutting tool holder with replaceable blades proposed in this utility model.

[0019] In the diagram: 1-handle, 2-blade, 3-first locking screw, 4-support block, 5-support column, 6-second gear, 7-first gear, 8-guide rod, 9-rotating rod, 10-knob, 11-second locking screw, 12-connecting ring, 13-first support ring, 14-second support ring. Detailed Implementation

[0020] 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.

[0021] Reference Figure 1-3 A replaceable blade cutting tool holder includes a tool holder 1 and a blade 2. The upper end of the tool holder 1 and near the left edge are provided with a placement groove. The blade 2 is placed in the placement groove. The upper end of the blade 2 is provided with a first locking screw 3 for fixing the blade 2. The blade 2 is fixed to the tool holder 1 by the first locking screw 3. The lower end of the tool holder 1 is provided with a sliding groove. A support block 4 is slidably connected to the inner side wall of the sliding groove for adjusting the height of the tool holder 1. The lower end of the support block 4 passes through the sliding groove. A plurality of vertically arranged guide rods 8 are slidably inserted into the upper end of the support block 4 for raising and lowering the support block 4. The upper end of the guide rod 8 is fixedly connected to the inner top of the sliding groove.

[0022] In this embodiment, multiple vertically arranged support columns 5 are inserted into the upper end of the support block 4 from left to right to drive the support block 4 to rise and fall. The support column 5 and the support block 4 are connected by threads. A connecting ring 12 is rotatably sleeved on the support column 5 to support the support column 5. The upper end of the connecting ring 12 is fixedly connected to the inner top of the slide groove. An annular groove is provided on the outer side wall of the support column 5. A first support ring 13 is rotatably connected to the inner side wall of the groove to support the support column 5. The outer side wall of the first support ring 13 passes through the groove and is fixedly connected to the inner side wall of the connecting ring 12.

[0023] In this embodiment, the handle 1 is provided with a horizontally arranged storage groove. The upper end of the support column 5 passes through the handle 1 and is fixedly connected to a second gear 6, which is used to drive the support column 5 to rotate. The second gear 6 and the first gear 7 are both helical gears. The second gear 6 is located in the storage groove. The storage groove is provided with a horizontally arranged rotating rod 9, which is used to drive the first gear 7 to rotate. The first gear 7 that meshes with the second gear 6 is fixedly sleeved on the rotating rod 9, which is used to drive the second gear 6 to rotate. The rotating rod 9 is rotatably sleeved with a second support ring 14, which is used to support the rotating rod 9. The outer side wall of the second support ring 14 is fixedly connected to the inner left side wall of the storage groove.

[0024] In this embodiment, the left end of the rotating rod 9 is rotatably connected to the inner wall of the storage slot, and the other end of the rotating rod 9 is fixedly connected to a knob 10 through the handle 1, which is used to drive the rotating rod 9 to rotate. A second locking screw 11 is inserted into the side of the knob 10 away from the rotating rod 9 and near the edge, which is used to screw into the slot to prevent the knob 10 from loosening. The second locking screw 11 and the knob 10 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 11. The end of the knob 10 away from the rotating rod 9 is provided with an internal hexagonal groove, which is used to facilitate the user to rotate the knob 10 with an internal hexagonal wrench.

[0025] In this embodiment, the blade 2 is first removed and replaced by loosening or tightening the first locking screw 3. The height of the support block 4 is adjusted instead of using traditional shims. During adjustment, the knob 10 is manually rotated to rotate the lever 9, which in turn drives multiple first gears 7 to rotate. The first gears 7 drive the second gear 6 and the support column 5 to rotate. The support column 5, relying on the threaded meshing principle, drives the support block 4 to rise and fall (the rise and fall of the support block 4 is achieved by the forward and reverse rotation of the knob 10), thereby completing the height adjustment of the tool holder 1. The coordinated adjustment and support of multiple support columns 5 significantly improves support and force uniformity, enhancing the stability of the tool holder 1 during use.

[0026] 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 cutting tool holder with replaceable inserts, comprising a tool holder (1) and inserts (2), characterized in that: The upper end of the handle (1) and near the left edge is provided with a placement groove, and the blade (2) is placed in the placement groove. The upper end of the blade (2) is provided with a first locking screw (3), and the blade (2) is fixed to the handle (1) by the first locking screw (3). The lower end of the handle (1) is provided with a sliding groove, and a support block (4) is slidably connected to the inner side wall of the sliding groove. The lower end of the support block (4) passes through the sliding groove. Multiple vertically arranged support columns (5) are inserted from left to right at the upper end of the support block (4). The support columns (5) and the support block (4) are connected to each other. The connection between the two parts is threaded. The handle (1) is provided with a horizontally arranged storage groove. The upper end of the support column (5) passes through the handle (1) and is fixedly connected to the second gear (6). The second gear (6) is located in the storage groove. The storage groove is provided with a horizontally arranged rotating rod (9). The rotating rod (9) is fixedly sleeved with a first gear (7) that meshes with the second gear (6). The left end of the rotating rod (9) is rotatably connected to the inner wall of the storage groove. The other end of the rotating rod (9) passes through the handle (1) and is fixedly connected to a knob (10).

2. A cutting tool holder with replaceable blades according to claim 1, characterized in that: A connecting ring (12) is rotatably sleeved on the support column (5). The upper end of the connecting ring (12) is fixedly connected to the inner top of the slide groove. A groove is provided on the outer side wall of the support column (5). A first support ring (13) is rotatably connected to the inner side wall of the groove. The outer side wall of the first support ring (13) passes through the groove and is fixedly connected to the inner side wall of the connecting ring (12).

3. A cutting tool holder with replaceable inserts according to claim 1, characterized in that: The rotating rod (9) is rotatably sleeved with a second support ring (14), and the outer side wall of the second support ring (14) is fixedly connected to the inner left side wall of the storage groove.

4. A cutting tool holder with replaceable blades according to claim 1, characterized in that: The upper end of the support block (4) is slidably fitted with a plurality of vertically arranged guide rods (8), and the upper end of the guide rods (8) is fixedly connected to the inner top of the slide groove.

5. A cutting tool holder with replaceable blades according to claim 1, characterized in that: The knob (10) is located on the side away from the rotating rod (9) and near the edge, where a second locking screw (11) is inserted. The second locking screw (11) and the knob (10) are connected by a thread. The right end of the handle (1) has multiple slots in a ring shape that correspond to the second locking screw (11).

6. A cutting tool holder with replaceable blades according to claim 1, characterized in that: The knob (10) has an internal hexagonal groove at the end away from the rotating rod (9).

Images