CBN blade for thread milling

Abstract

The utility model relates to the technical field of thread milling, and discloses a CBN (Cubic Boron Nitride) blade for thread milling, which effectively solves the problem that the blade vibrates severely during working due to poorer limiting effect of an existing tool apron on the blade, and comprises a tool handle, a connecting handle is arranged at one end of the tool handle, a blade body is arranged below the connecting handle, and a plurality of blades are arranged on the connecting handle. The connecting handle is connected with the blade body through a connecting assembly, the connecting assembly comprises a fixing block installed on the side, close to the connecting handle, of the blade body, the two sides of the fixing block are each symmetrically provided with two side blocks, and a fixing base is installed at the bottom end of the connecting handle. The side blocks on the two sides of the fixing block are clamped into the side grooves in the fixing base, longitudinal vibration of the blade body is reduced, meanwhile, the limiting rod is fixed to the side, away from the cutter handle, of the fixing base, the limiting rod and the inner wall of the mounting groove play a role in limiting the blade body, transverse vibration of the blade body is reduced, and the working stability of the blade body is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of thread milling, in particular to a CBN blade used for thread milling. Background Art

[0002] According to the patent document with the authorization announcement number of "CN206689503U" and the invention name of "a thread milling cutter blade", the specification states: when in use, the blade body and the mounting seat are clamped to each other through the clamping column and the clamping groove to achieve the purpose of fixing the blade body. When disassembling and replacing, it is only necessary to press the pressing column to make the clamping column disengage from the clamping groove, and the supporting spring automatically pops the blade body outward a certain distance, making the blade body disassembly and assembly faster and more convenient. The utility model has a novel design, a simple structure, and convenient operation. It eliminates the tedious installation of the traditional milling cutter blade by the locking screw. The clamping column and the clamping groove form a firm locking structure, which not only makes the blade body easy to install, but also quick to disassemble and replace. However, the following defects still exist:

[0003] Since the blade and the blade seat are clamped and fixed by the clamping column and the clamping groove, the limiting effect of the blade is poor, which makes the blade vibrate more during operation and has low working stability. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a CBN blade for thread milling, which effectively solves the problem that the current tool holder has a poor limiting effect on the blade, causing the blade to vibrate greatly during operation.

[0005] To achieve the above object, the utility model provides the following technical solution: a CBN blade for thread milling, comprising a tool handle, a connecting handle is installed at one end of the tool handle, a blade body is provided below the connecting handle, and the connecting handle and the blade body are connected by a connecting assembly;

[0006] The connecting component includes a fixed block installed on the side of the blade body close to the connecting handle, two side blocks are symmetrically installed on both sides of the fixed block, a fixed seat is installed at the bottom end of the connecting handle, a mounting groove is opened inside the fixed seat, the mounting groove passes through the bottom end of the fixed seat, the mounting groove passes through to the side of the fixed seat away from the blade handle, side panels are symmetrically installed on both sides of the fixed seat, side grooves are symmetrically opened on both sides of the mounting groove, the side grooves pass through the inside of the side panels, the fixed block is installed inside the mounting groove, the side blocks on both sides of the fixed block are respectively inserted into the side grooves on both sides of the mounting groove, and a clamping component is installed between the upper and lower side panels.

[0007] Preferably, a limiting rod is provided on the side of the fixing seat away from the knife handle, the limiting rod is in close contact with the end of the fixing block away from the knife handle, a fixing plate is provided above the limiting rod, the fixing plate is fixedly installed on the side of the fixing seat away from the knife handle, and the fixing plate and the limiting rod are fixedly connected by bolts.

[0008] Preferably, two insertion rods are symmetrically installed on one side of the limit rod close to the fixing seat, the two insertion rods are respectively inserted between the upper and lower side plates on both sides of the fixing seat, and an insertion plate is installed on one end of the insertion rod away from the limit rod.

[0009] Preferably, a connecting seat is fixedly installed between the upper and lower side panels, a plate groove is opened on the side of the connecting seat close to the limiting rod, one end of the plug plate is inserted into the inside of the plate groove, a screw is installed on the connecting seat, and the screw is threadedly connected to the plug plate.

[0010] Preferably, the clamping assembly includes a fixed cylinder installed on the side where the upper and lower side plates are close to each other, a sliding plate is slidably installed inside the fixed cylinder, a clamping block is installed on the side of the sliding plate close to the side plate, the clamping block penetrates into the inside of the side groove, and clamping grooves are provided on the side where the upper and lower side blocks on the same side of the fixed block are close to each other, and the clamping block is clamped with the clamping groove on the side block.

[0011] Preferably, a spring is symmetrically installed on the side of the sliding plate away from the block, and the side of the sliding plate away from the block is installed on a push rod, one end of the push rod penetrates to the side where the two fixed cylinders are close to each other, and a pressure ball is installed on one end of the push rod.

[0012] Preferably, the connecting seat is located on the side of the fixed cylinder away from the limiting rod, the plug plate passes through the upper and lower fixed cylinders, an arc-shaped head is installed on the end of the plug plate away from the limiting rod, and the pressure balls on the upper and lower sides of the plug plate are respectively tightly attached to the upper and lower surfaces of the plug plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) The utility model installs the blade body at the bottom end of the fixing block, and the side blocks on both sides of the fixing block are inserted into the side grooves inside the fixing seat, thereby reducing the longitudinal vibration of the blade body and improving the fixing effect of the blade body. At the same time, a limiting rod is fixed on the side of the fixing seat away from the handle, so that the limiting rod and the inner wall of the installation groove play a limiting role on the blade body, reducing the lateral vibration of the blade body and improving the working stability of the blade body.

[0015] (2) When the insert plate is inserted between the upper and lower fixing cylinders, the arc-shaped top simultaneously generates a thrust force on the upper and lower pressure balls to move away from each other, thereby pushing the clamping block to move toward the inside of the side groove, so that the clamping block is clamped into the clamping groove on the side block, thereby further improving the fixing effect of the blade body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0017] In the attached picture:

[0018] Figure 1 This is a schematic diagram of the structure of a CBN insert for thread milling according to the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the blade body of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the connection assembly of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the clamping assembly of the utility model;

[0022] In the figure: 1. knife handle; 2. connecting handle; 3. blade body; 4. connecting assembly; 401. fixing block; 402. side block; 403. fixing seat; 404. side plate; 405. side groove; 406. mounting groove; 407. fixing plate; 408. limiting rod; 409. plug rod; 410. plug plate; 411. connecting seat; 412. plate groove; 413. screw; 414. bolt; 5. clamping assembly; 501. clamping groove; 502. arc-shaped top; 503. fixing cylinder; 504. clamping block; 505. sliding plate; 506. spring; 507. push rod; 508. pressure ball. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] Embodiment 1, by Figure 1-Figure 4 The utility model comprises a knife handle 1, a connecting handle 2 is installed at one end of the knife handle 1, a blade body 3 is arranged below the connecting handle 2, and the connecting handle 2 and the blade body 3 are connected by a connecting assembly 4;

[0025] The connecting assembly 4 includes a fixing block 401 installed on the side of the blade body 3 close to the connecting handle 2, two side blocks 402 are symmetrically installed on both sides of the fixing block 401, a fixing seat 403 is installed at the bottom end of the connecting handle 2, a fixing slot 406 is opened inside the fixing seat 403, the fixing slot 406 penetrates to the bottom end of the fixing seat 403, the fixing slot 406 penetrates to the side of the fixing seat 403 away from the handle 1, side plates 404 are symmetrically installed on both sides of the fixing seat 403, side slots 405 are symmetrically opened on both sides of the fixing slot 406, and the side slots 405 penetrate to The fixing block 401 is installed inside the side plate 404, and the side blocks 402 on both sides of the fixing block 401 are respectively inserted into the side grooves 405 on both sides of the mounting groove 406. A clamping assembly 5 is installed between the upper and lower side plates 404. A limiting rod 408 is provided on the side of the fixing seat 403 away from the handle 1. The limiting rod 408 is tightly attached to the end of the fixing block 401 away from the handle 1. A fixing plate 407 is provided above the limiting rod 408. The fixing plate 407 is fixedly installed on the side of the fixing seat 403 away from the handle 1. The fixing plate 407 and the limiting rod 408 are tightly attached to the fixing plate 407. The rod 408 is fixedly connected by a bolt 414, and two plug rods 409 are symmetrically installed on one side of the limit rod 408 close to the fixed seat 403. The two plug rods 409 are respectively inserted between the upper and lower side plates 404 on both sides of the fixed seat 403, and a plug plate 410 is installed on the end of the plug rod 409 away from the limit rod 408. A connecting seat 411 is fixedly installed between the upper and lower side plates 404. A plate groove 412 is opened on the side of the connecting seat 411 close to the limit rod 408. One end of the plug plate 410 is inserted into the inside of the plate groove 412, and a Screw 413, screw 413 is threadedly connected with insert plate 410, blade body 3 is installed at the bottom end of fixing block 401, side blocks 402 on both sides of fixing block 401 are inserted into side grooves 405 inside fixing seat 403, thereby reducing longitudinal vibration of blade body 3 and improving fixing effect of blade body 3. At the same time, limiting rod 408 is fixed on the side of fixing seat 403 away from handle 1, so that limiting rod 408 and the inner wall of mounting groove 406 play a limiting role on blade body 3, reducing lateral vibration of blade body 3 and improving working stability of blade body 3.

[0026] The clamping assembly 5 includes a fixed cylinder 503 installed on the side where the upper and lower side plates 404 are close to each other, a sliding plate 505 is slidably installed inside the fixed cylinder 503, a clamping block 504 is installed on the side of the sliding plate 505 close to the side plate 404, and the clamping block 504 penetrates into the inside of the side groove 405, and a clamping groove 501 is opened on the side where the upper and lower side blocks 402 on the same side of the fixed block 401 are close to each other, and the clamping block 504 is clamped with the clamping groove 501 on the side block 402, and a spring 506 is symmetrically installed on the side of the sliding plate 505 away from the clamping block 504, and a push rod 507 is installed on the side of the sliding plate 505 away from the clamping block 504, and one end of the push rod 507 penetrates to the side where the two fixed cylinders 503 are close to each other. A pressure ball 508 is installed at one end, and the connecting seat 411 is located on the side of the fixed cylinder 503 away from the limiting rod 408. The insert plate 410 passes between the upper and lower fixed cylinders 503. An arc-shaped top head 502 is installed at one end of the insert plate 410 away from the limiting rod 408. The pressure balls 508 on the upper and lower sides of the insert plate 410 are respectively tightly attached to the upper and lower side surfaces of the insert plate 410. When the insert plate 410 is inserted between the upper and lower fixed cylinders 503, the arc-shaped top head 502 simultaneously generates a thrust to move the upper and lower pressure balls 508 away from each other, thereby pushing the block 504 to move toward the inside of the side groove 405, so that the block 504 is stuck in the slot 501 on the side block 402, thereby further improving the fixing effect of the blade body 3.

[0027] Working principle: During installation, the fixing block 401 on the blade body 3 is inserted into the installation groove 406 from the end of the fixing seat 403 away from the knife handle 1, and the side blocks 402 on both sides of the fixing block 401 are respectively inserted into the side grooves 405, and then a limiting rod 408 is set at the end of the fixing seat 403 away from the knife handle 1, so that the two insertion rods 409 on the limiting rod 408 are respectively inserted from between the two side plates 404 on both sides of the fixing seat 403, so that the insertion plate 410 is inserted into the plate groove 412, and the insertion plate 410 is fixed to the connecting seat 411 by screws 413, and the fixing plate 407 is fixed to the limiting rod 408 by bolts 414, so as to fix the blade body 3;

[0028] When the insert plate 410 is inserted between the upper and lower fixed cylinders 503, the arc-shaped top head 502 simultaneously generates a thrust to move the upper and lower pressure balls 508 away from each other, thereby pushing the block 504 to move toward the inside of the side groove 405, so that the block 504 is inserted into the groove 501 on the side block 402, thereby further improving the fixing effect of the blade body 3.

Claims

1. A CBN insert for thread milling, comprising a tool holder (1), characterized in that: A connecting handle (2) is installed at one end of the knife handle (1), a blade body (3) is provided below the connecting handle (2), and the connecting handle (2) and the blade body (3) are connected via a connecting assembly (4); The connecting assembly (4) comprises a fixing block (401) mounted on a side of the blade body (3) close to the connecting handle (2), two side blocks (402) are symmetrically mounted on both sides of the fixing block (401), a fixing seat (403) is mounted on the bottom end of the connecting handle (2), a mounting groove (406) is provided inside the fixing seat (403), the mounting groove (406) penetrates to the bottom end of the fixing seat (403), and the mounting groove (406) penetrates to the side of the fixing seat (403) away from the blade handle (1). , side plates (404) are symmetrically installed on both sides of the fixing seat (403), side grooves (405) are symmetrically opened on both sides of the installation groove (406), and the side grooves (405) penetrate into the inside of the side plates (404), the fixing block (401) is installed in the inside of the installation groove (406), and the side blocks (402) on both sides of the fixing block (401) are respectively inserted into the side grooves (405) on both sides of the installation groove (406), and a clamping assembly (5) is installed between the upper and lower side plates (404).

2. The CBN insert for thread milling according to claim 1, characterized in that: A limiting rod (408) is provided on the side of the fixing seat (403) away from the knife handle (1), the limiting rod (408) is in close contact with the end of the fixing block (401) away from the knife handle (1), a fixing plate (407) is provided above the limiting rod (408), the fixing plate (407) is fixedly mounted on the side of the fixing seat (403) away from the knife handle (1), and the fixing plate (407) and the limiting rod (408) are fixedly connected by bolts (414).

3. The CBN insert for thread milling according to claim 2, characterized in that: Two insertion rods (409) are symmetrically installed on one side of the limiting rod (408) close to the fixing seat (403), and the two insertion rods (409) are respectively inserted between the upper and lower side plates (404) on both sides of the fixing seat (403), and an insertion plate (410) is installed on one end of the insertion rod (409) away from the limiting rod (408).

4. The CBN insert for thread milling according to claim 3, characterized in that: A connecting seat (411) is fixedly installed between the upper and lower side plates (404), a plate groove (412) is provided on a side of the connecting seat (411) close to the limiting rod (408), one end of the plug plate (410) is inserted into the plate groove (412), a screw (413) is installed on the connecting seat (411), and the screw (413) is threadedly connected to the plug plate (410).

5. The CBN insert for thread milling according to claim 1, characterized in that: The clamping assembly (5) comprises a fixed cylinder (503) installed on the side where the upper and lower side plates (404) are close to each other, a sliding plate (505) is slidably installed inside the fixed cylinder (503), a clamping block (504) is installed on the side where the sliding plate (505) is close to the side plate (404), the clamping block (504) penetrates into the inside of the side groove (405), and a clamping groove (501) is provided on the side where the upper and lower side blocks (402) on the same side of the fixed block (401) are close to each other, and the clamping block (504) is clamped with the clamping groove (501) on the side block (402).

6. The CBN insert for thread milling according to claim 5, characterized in that: A spring (506) is symmetrically mounted on one side of the sliding plate (505) away from the block (504), and a push rod (507) is mounted on the other side of the sliding plate (505) away from the block (504). One end of the push rod (507) penetrates to the side where the two fixed cylinders (503) are close to each other, and a pressure ball (508) is mounted on one end of the push rod (507).

7. The CBN insert for thread milling according to claim 4, characterized in that: The connecting seat (411) is located on a side of the fixed cylinder (503) away from the limiting rod (408), the plug plate (410) passes through between the upper and lower fixed cylinders (503), an arc-shaped top head (502) is installed at one end of the plug plate (410) away from the limiting rod (408), and the pressure balls (508) on the upper and lower sides of the plug plate (410) are respectively in close contact with the upper and lower surfaces of the plug plate (410).

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