Knife pouch

Abstract

The utility model provides a cutter sleeve, and belongs to the technical field of machine tool accessories. The cutter solves the problems that when an existing cutter is used for machining inner holes of shaft parts, scraps are prone to being accumulated, and the machining quality of products is reduced. The knife pouch comprises a cylindrical body, a threaded hole is formed in the cylindrical wall of the front end of the body in a penetrating mode in the radial direction, a through hole penetrating through the front end face and the rear end face of the body in the axial direction is formed in the cylindrical wall of the body, the through hole and the threaded hole are formed in the circumferential direction of the body in a staggered mode, and a water outlet base is inserted and fixedly connected to the front end of the through hole. The water outlet seat is fixedly connected with a spray pipe extending forwards, and the spray pipe is communicated with the through hole through the water outlet seat. Cooling liquid is sprayed out of the spraying pipe after passing through the through hole and the water outlet base, cuttings formed by turning can be rushed away, stacked cuttings are reduced, and the product machining quality is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of machine tool accessories and relates to a tool holder. Background Technology

[0002] A tool holder is a connecting component used to connect a cutting tool to a tool holder. The tool holder is cylindrical, and the tool shank is inserted into and fixed inside the tool holder. The front end of the tool shank extends out of the tool holder and is fixed with the cutting edge. The tool holder is then inserted into and fixed in the tool holder, which is fixed to the tool post of the lathe carriage assembly.

[0003] When machining internal holes, the tool tip needs to be inserted into the inner hole of the product. When machining the inner holes of shaft parts, especially deep holes, the spray heads commonly used on lathes often cannot spray coolant into the inner hole for cooling and chip removal, which can easily lead to chip buildup and scratches on the parts, reducing the machining quality of the product. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned problems in the existing technology by proposing a tool holder that solves the technical problem that existing tools easily cause chip buildup when machining the inner holes of shaft parts, thus reducing the product machining quality.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A blade sheath includes a cylindrical body with a threaded hole radially penetrating the front wall of the body. The body is characterized by having an axially penetrating through-hole between its front and rear faces on the cylindrical wall. The through-hole and the threaded hole are offset circumferentially from each other. A water outlet seat is inserted into and fixedly connected to the front end of the through-hole. A forward-extending nozzle is fixedly connected to the water outlet seat, and the nozzle communicates with the through-hole via the water outlet seat.

[0007] The cutting tool has a blade fixed to its front end of the shank. The shank is inserted into the inner hole of the tool holder body, with the front end of the shank extending beyond the front end of the tool holder. The blade and the spray nozzle are located on the same side of the body. A locking screw is threaded into the threaded hole; tightening the locking screw secures the cutting tool shank in the tool holder. The tool holder is inserted into and fixedly connected to the tool holder, which is fixedly connected to the tool post of the lathe carriage assembly. The rear end of the through hole on the body communicates with the spray pipe of the spray system. Because the threaded hole and the through hole are offset circumferentially from each other on the body, coolant will not enter the threaded hole.

[0008] When machining the inner hole of a part, the front end of the tool holder extends into the inner hole of the part, and the coolant is sprayed out from the nozzle after passing through the through hole and the water outlet seat. Because the nozzle is designed to extend forward, the outlet of the nozzle can spray the coolant into the inner hole of the part, thereby breaking up the chips generated during turning, cooling and removing chips, reducing chip accumulation, and improving the product machining quality.

[0009] In the aforementioned tool holder, the wall surface of the through hole has a step behind the water outlet seat. A screw is threaded onto one side of the front end face of the body, located within the through hole, and the head of the screw abuts against the water outlet seat. The screw head abutting against the water outlet seat limits its position, confining it within the through hole. This allows coolant to pass through the through hole and the water outlet seat before being sprayed out from the nozzle for cooling and chip removal.

[0010] In the aforementioned blade holder, the water outlet seat has a spherical head located inside the through hole, and a sealing seat is provided between the spherical head and the hole wall at the front end of the through hole. The nozzle is inclined in the direction away from the screw, and the head of the screw abuts against the outer surface of the spherical head.

[0011] The ball head is spherical. After unscrewing the screw, the water outlet seat can swing within the through hole, swinging away from the screw. Then, tighten the screw so that the head of the screw rests against the outer surface of the water outlet seat. This allows adjustment of the nozzle's tilt angle for better alignment with the cutting tool. The sealing seat provides a seal, preventing coolant from spraying out between the outer surface of the ball head of the water outlet seat and the wall of the through hole, allowing coolant to be sprayed from the nozzle for cooling and chip removal.

[0012] In the aforementioned tool holder, a raised ring is provided on the outer side of the front end of the main body, and the threaded hole penetrates the outer side of the raised ring. When the main body is inserted into the tool holder, it can be axially positioned by the raised ring, facilitating the installation and positioning of the tool holder.

[0013] In the aforementioned tool holder, several axially arranged side holes are provided on the outer surface of the body behind the convex ring, and these side holes penetrate the inner surface of the body. The side holes facilitate observation of the tool holder's position within the body.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] The tool holder is equipped with a through hole, a water outlet seat, and a spray nozzle. The coolant passes through the through hole and the water outlet seat and is then sprayed out from the spray nozzle, which can dissipate the chips generated during turning, reduce chip accumulation, and improve product processing quality. Attached Figure Description

[0016] Figure 1 This is a perspective view of the tool holder in Embodiment 1 connected to the tool.

[0017] Figure 2 This is a front view of the tool holder in Embodiment 1 when connected to the tool.

[0018] Figure 3 yes Figure 2 The left view.

[0019] Figure 4 yes Figure 2A cross-sectional view along the AA direction.

[0020] Figure 5 yes Figure 4 A magnified view of the central water outlet.

[0021] In the figure, 1 is the body; 1a is the threaded hole; 1b is the through hole; 1b1 is the step; 1c is the raised ring; 1d is the side hole; 2 is the water outlet seat; 2a is the ball head; 3 is the nozzle; 4 is the screw; 5 is the sealing seat; 6 is the knife handle; and 7 is the blade. Detailed Implementation

[0022] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0023] Example 1

[0024] like Figure 1 and Figure 2 As shown, a tool holder includes a cylindrical body 1. Several threaded holes 1a are radially perforated on the front wall of the body 1. There can be two, three, or four threaded holes 1a. A protruding annular ring 1c is located on the outer surface of the front end of the body 1, and the threaded holes 1a penetrate the outer surface of the ring 1c. Several axially arranged side holes 1d are located behind the ring 1c on the outer surface of the body 1, and the side holes 1d penetrate the inner surface of the body 1. There can be two, three, or four side holes 1d. A tool shank 6 is inserted into the inner hole of the tool holder body 1. A locking screw is threaded into the threaded hole 1a. Tightening the locking screw fixes the tool shank 6 in the tool holder. The front end of the tool shank 6 extends from the front end of the tool holder and holds a cutting blade 7.

[0025] like Figure 3 , Figure 4 and Figure 5As shown, the body 1 has a through hole 1b extending axially through the front and rear faces of the body 1 on its cylindrical wall. The through hole 1b and the threaded hole 1a are offset circumferentially from each other in the body 1. A water outlet seat 2 is inserted into and fixedly connected to the front end of the through hole 1b, and the water outlet seat 2 has a central hole. A forward-extending nozzle 3 is fixedly connected to the water outlet seat 2, and the nozzle 3 communicates with the through hole 1b through the water outlet seat 2. The nozzle 3 is inserted into the water outlet seat 2 and forms a threaded connection, with the inner hole of the nozzle 3 coaxial with the central hole of the water outlet seat 2. A step 1b1 is provided on the wall surface of the front end of the through hole 1b behind the water outlet seat 2. A screw 4 is threadedly connected to one side of the front end of the body 1 on the through hole 1b, and the head of the screw 4 abuts against the water outlet seat 2. The water outlet seat 2 has a spherical head 2a located inside the through hole 1b, and a sealing seat 5 is provided between the spherical head 2a and the wall surface of the front end of the through hole 1b. The sealing seat 5 is made of rubber, which not only facilitates the installation of the ball head 2a into the sealing seat 5, but also ensures good sealing performance. The nozzle 3 is inclined away from the screw 4, and the head of the screw 4 rests against the outer surface of the ball head 2a.

[0026] The tool holder is inserted and fixedly connected to the tool holder, which is fixedly connected to the tool post of the lathe carriage assembly. The rear end opening of the through hole 1b on the main body 1 is connected to the spray pipe of the spray system. When turning the inner hole of the part, the front end of the tool holder 6 extends into the inner hole of the part and is located at the upper or side of the inner hole. A space is left between the lower side hole 1d wall of the inner hole of the part and the tool holder 6 for the coolant to flow out. The coolant passes through the through hole 1b and the water outlet seat 2 and is sprayed out from the spray pipe 3, which can dissipate the chips formed by turning, cool and remove chips. Afterwards, the chips flow out from the inner hole of the product with the coolant, reducing chip accumulation and improving the product processing quality.

[0027] Example 2

[0028] The outer surface of the water outlet seat 2 is cylindrical and fits with the through hole 1b with a clearance. A sealing gasket is provided between the inner end face of the water outlet seat 2 and the step 1b1 of the through hole 1b. The head of the screw 4 abuts against the outer end face of the water outlet seat 2 or the shoulder of the water outlet seat 2. The nozzle 3 is made of stainless steel tubing, extends forward and bends towards the blade 7, so that the outlet direction of the nozzle 3 is facing the blade 7. Other structures are the same as in Embodiment 1.

[0029] Example 3

[0030] Screw 4 is removed. The water outlet seat 2 is threadedly connected to the through hole 1b. A sealing gasket is provided between the inner end face of the water outlet seat 2 and the step 1b1 of the through hole 1b. The nozzle 3 is made of stainless steel tubing. The nozzle 3 extends forward and bends towards the blade 7, so that the outlet direction of the nozzle 3 is facing the blade 7. Other structures are the same as in Embodiment 1.

[0031] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A knife sheath, comprising a cylindrical body (1), wherein a threaded hole (1a) is radially provided through the cylindrical wall at the front end of the body (1), characterized in that, The body (1) has a through hole (1b) on its cylindrical wall that extends axially through the front and rear faces of the body (1). The through hole (1b) and the threaded hole (1a) are offset from each other in the circumferential direction of the body (1). A water outlet seat (2) is inserted into and fixedly connected to the front end of the through hole (1b). A nozzle (3) extending forward is fixedly connected to the water outlet seat (2). The nozzle (3) and the through hole (1b) are connected through the water outlet seat (2).

2. The blade sheath according to claim 1, characterized in that, The front end of the through hole (1b) has a step (1b1) behind the water outlet seat (2). The front end of the body (1) is threaded with a screw (4) on one side of the through hole (1b). The head of the screw (4) abuts against the water outlet seat (2).

3. The blade sheath according to claim 2, characterized in that, The water outlet seat (2) has a spherical head (2a) located inside the through hole (1b), and a sealing seat (5) is provided between the spherical head (2a) and the hole wall at the front end of the through hole (1b). The nozzle (3) is inclined in the direction away from the screw (4) and the head of the screw (4) abuts against the outer surface of the spherical head (2a).

4. The blade sheath according to any one of claims 1-3, characterized in that, The outer side of the front end of the body (1) has a raised ring (1c), and the threaded hole (1a) penetrates the outer side of the raised ring (1c).

5. The blade sheath according to claim 4, characterized in that, Several side holes (1d) arranged along the axial direction are provided on the outer side surface of the body (1) behind the convex ring (1c), and the side holes (1d) penetrate the inner side surface of the body (1).

Images