An installation structure for preventing knife-dropping rivets

Abstract

This utility model relates to an installation structure for an anti-drop tool pull stud, including a tool handle, a pull stud, and a tool shank. One end face of the tool handle has a groove, and the bottom surface of the groove has an installation hole along the axial direction of the tool handle. The other end of the tool handle is detachably equipped with a pull stud, one end of which is inserted into the installation hole. The end of the tool shank opposite to the tool head is inserted into the installation hole through the groove and detachably connected to the pull stud. An installation sleeve is fitted onto the end of the tool shank inserted into the installation hole, and the installation sleeve abuts against the wall of the installation hole. The beneficial effects of this utility model are: it can effectively prevent the tool shank from falling out of the tool handle, and it has an internal cooling effect, ensuring processing quality and progress.

Description

Technical Field

[0001] This utility model belongs to the field of machining tool technology, and specifically relates to an installation structure for an anti-tool-dropping pull stud. Background Technology

[0002] In a machining tool system, the tool holder is an indispensable part connecting the cutting tool and the machine tool. It is used to safely transmit the machine tool's torque and has a significant impact on machining quality, machine tool life, tool life, and machining costs. A cutting tool consists of a tool holder and a cutting head mounted on one end of the tool holder, with the other end mounted on the tool shank. During machining, the cutting tool is subjected to high forces, and friction between the cutting head and the workpiece generates heat. Under heavy cutting conditions during roughing, as the machining time increases, the tool holder is prone to excessive force and may detach from the tool shank, affecting machining quality and progress. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide an installation structure for preventing tool drop by pulling the pin. This structure can effectively prevent the tool holder from falling out of the tool shank and has an internal cooling effect, ensuring processing quality and progress.

[0004] The objective of this utility model is achieved through the following technical solution: An installation structure for preventing knife drop by a pull stud includes a knife handle, a pull stud, and a knife shank. One end face of the knife handle has a groove, and the bottom surface of the groove has an installation hole along the axial direction of the knife handle. The other end of the knife handle is detachably provided with a pull stud, one end of which is inserted into the installation hole. The end of the knife shank opposite to the knife head is inserted into the installation hole through the groove and is detachably connected to the pull stud. An installation sleeve is fitted onto the end of the knife shank inserted into the installation hole, and the installation sleeve abuts against the wall of the installation hole.

[0005] Furthermore, a through hole extending to the end of the tool holder is provided at the bottom of the mounting hole along the axial direction of the tool holder, and one end of the pull pin is inserted into the mounting hole through the through hole and threaded into the tool holder.

[0006] Furthermore, the two ends of the pull stud are respectively provided with a limiting sleeve and a limiting block. The limiting sleeve is threaded onto the end of the pull stud that is inserted into the mounting hole and abuts against the bottom of the mounting hole. The limiting block is integrally formed with the pull stud and abuts against the end of the tool holder.

[0007] Furthermore, the end of the mounting sleeve furthest from the pull stud has multiple strip-shaped slots along the axial direction of the mounting sleeve, and these multiple strip-shaped slots are evenly distributed along the circumferential direction of the mounting sleeve.

[0008] Furthermore, the side wall of the mounting sleeve away from the pull stud extends radially to form a limiting disc, which abuts against the bottom of the groove.

[0009] Furthermore, a first cooling channel is provided in the middle of the tool holder along the length of the tool holder, and a second cooling channel is provided in the middle of the pull stud along the length of the pull stud. After the tool holder and the pull stud are connected, the first cooling channel and the second cooling channel are connected.

[0010] Compared with the prior art, the present invention has the following beneficial effects: 1. This utility model, through the arrangement of a tool bar, a tool holder, a pull stud, a mounting hole, and a mounting sleeve, fixes the pull stud to the tool holder, inserts the tool bar into the mounting hole and fixes it together with the pull stud, then puts the mounting sleeve on the tool bar and fixes the tool bar to the tool holder through the mounting sleeve, and holds the tool bar by the pull stud to prevent the tool bar from falling off the tool holder during the processing, thus ensuring processing quality and processing progress.

[0011] 2. By setting up a first cooling channel and a second cooling channel, this utility model allows coolant to be added from the second cooling channel on the pull stud to the first cooling channel after the tool holder is connected to the pull stud, so as to cool the tool and make the installation structure of the anti-drop pull stud have an internal cooling effect. Attached Figure Description

[0012] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the overall structure of this utility model; Figure 3 This is a schematic diagram of the internal structure of the knife handle in this utility model; Figure 4 This is a schematic diagram showing the connection between the knife bar and the pull stud in this utility model.

[0013] In the diagram: 1. Tool holder; 2. Pull stud; 3. Tool shank; 4. Groove; 5. Mounting hole; 6. Mounting sleeve; 7. Through hole; 8. Limiting sleeve; 9. Limiting block; 10. Strip-shaped bayonet; 11. Limiting plate; 12. First cooling channel; 13. Second cooling channel. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0015] like Figures 1-3As shown, an installation structure for an anti-drop rivet 2 includes a knife handle 1, a rivet 2, and a knife shank 3. One end face of the knife handle 1 has a groove 4, and the bottom surface of the groove 4 has an installation hole 5 along the axial direction of the knife handle 1. The other end of the knife handle 1 is detachably equipped with the rivet 2, one end of which is inserted into the installation hole 5. One end of the knife shank 3 is used to install a knife head. The end of the knife shank 3 opposite to the knife head is inserted into the installation hole 5 through the groove 4 and detachably connected to the rivet 2. An installation sleeve 6 is fitted onto the end of the knife shank 3 inserted into the installation hole 5, and the installation sleeve 6 abuts against the wall of the installation hole 5. After fixing the rivet 2 to the knife handle 1, the knife shank 3 is inserted into the installation hole 5 and fixed together with the rivet 2. Then, the installation sleeve 6 is fitted onto the knife shank 3, so that the installation sleeve 6 is inserted into the installation hole 5 and abuts against the installation hole 5. Thus, the installation sleeve 6 fixes the knife shank 3 to the knife handle 1, while the rivet 2 pulls the knife shank 3, preventing the knife shank 3 from falling out of the knife handle 1.

[0016] like Figure 2 , Figure 3 As shown, the bottom of the mounting hole 5 is provided with a through hole 7 extending to the end of the tool holder 1 along the axial direction. The tool bar 3 and the pull stud 2 can be threaded together at one end of the mounting hole 5. After the pull stud 2 is inserted into the mounting hole 5 through the through hole 7 and fixed, the tool bar 3 is then inserted into the mounting hole 5 and threadedly connected to the pull stud 2, thereby fixing the tool bar 3 and the pull stud 2 together.

[0017] like Figure 3 As shown, in order to facilitate fixing the pull rivet 2, a limiting sleeve 8 and a limiting block 9 are respectively provided at both ends of the pull rivet 2. The limiting sleeve 8 is threaded onto the end of the pull rivet 2 that is inserted into the mounting hole 5. The limiting block 9 is integrally formed with the pull rivet 2. The pull rivet 2 is inserted into the mounting hole 5, and then the limiting sleeve 8 is put on the pull rivet 2 through the mounting hole 5. The threaded sleeve is tightened so that the threaded sleeve abuts against the bottom of the mounting hole 5, while the limiting block 9 abuts against the end of the tool holder 1, thereby fixing the pull rivet 2 on the tool holder 1.

[0018] like Figure 3 , Figure 4 As shown, in order to fix the tool bar 3 to the tool holder 1, multiple strip-shaped slots 10 are provided on the mounting sleeve 6 at the end away from the pull stud 2 along the axial direction of the mounting sleeve 6. The multiple strip-shaped slots 10 are evenly distributed along the circumferential direction of the mounting sleeve 6. A limiting disc 11 is formed by radially extending the side wall of the mounting sleeve 6 at the end away from the pull stud 2. After the tool bar 3 is inserted into the mounting hole 5 and connected to the pull stud 2, the mounting sleeve 6 is put on the tool bar 3 and inserted into the mounting hole 5 until the limiting disc 11 abuts against the bottom of the groove 4. As the mounting sleeve 6 continues to extend into the mounting hole 5, under the pressure of the hole wall of the mounting hole 5, the mounting sleeve 6 will gradually contract inward and squeeze the tool bar 3, thereby holding and fixing the tool bar 3 to the tool holder 1 through the mounting sleeve 6.

[0019] like Figure 2As shown, a first cooling channel 12 is provided in the middle of the tool holder 3 along the length of the tool holder 3, and a second cooling channel 13 is provided in the middle of the pull stud 2 along the length of the pull stud 2. After the tool holder 3 is connected to the pull stud 2, the first cooling channel 12 and the second cooling channel 13 are connected. In this way, during the machining process, coolant can be added from the second cooling channel 13 on the pull stud 2 into the first cooling channel 12 to facilitate the cooling of the tool.

[0020] Finally, although embodiments of the present invention have been shown and described above, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An installation structure for an anti-dropping rivet (2), characterized in that: The tool includes a handle (1), a pull stud (2), and a tool shank (3). One end face of the handle (1) is provided with a groove (4). The bottom surface of the groove (4) is provided with a mounting hole (5) along the axial direction of the handle (1). The other end of the handle (1) is detachably provided with a pull stud (2). One end of the pull stud (2) is inserted into the mounting hole (5). The end of the tool shank (3) opposite to the tool head is inserted into the mounting hole (5) through the groove (4) and is detachably connected to the pull stud (2). The end of the tool shank (3) inserted into the mounting hole (5) is fitted with a mounting sleeve (6). The mounting sleeve (6) abuts against the wall of the mounting hole (5).

2. The mounting structure of the anti-drop power tool draw-in nail (2) according to claim 1, characterized in that: The mounting hole (5) has a through hole (7) extending to the end of the tool holder (1) along the axial direction of the hole. One end of the pull pin (2) is inserted into the mounting hole (5) through the through hole (7) and threaded into the tool bar (3).

3. The mounting structure of the anti-drop power tool draw-in nail (2) according to claim 1, characterized in that: The pull stud (2) is provided with a limiting sleeve (8) and a limiting block (9) at both ends. The limiting sleeve (8) is threaded onto one end of the pull stud (2) that is inserted into the mounting hole (5) and abuts against the bottom of the mounting hole (5). The limiting block (9) is integrally formed with the pull stud (2) and abuts against the end of the handle (1).

4. The mounting structure of the anti-drop power tool draw bar (2) according to claim 1, characterized in that: Multiple strip-shaped slots (10) are provided on the end of the mounting sleeve (6) away from the rivet (2) along the axial direction of the mounting sleeve (6), and the multiple strip-shaped slots (10) are evenly distributed along the circumferential direction of the mounting sleeve (6).

5. The mounting structure of the anti-drop power tool draw-in nail (2) according to claim 1, characterized in that: The mounting sleeve (6) extends radially from the side wall away from the rivet (2) to form a limiting plate (11), which abuts against the bottom of the groove (4).

6. The mounting structure of the anti-drop power tool draw bar (2) according to claim 1, characterized in that: The tool holder (3) has a first cooling channel (12) in the middle along the length of the tool holder (3), and the pull stud (2) has a second cooling channel (13) in the middle along the length of the pull stud (2). After the tool holder (3) and the pull stud (2) are connected, the first cooling channel (12) and the second cooling channel (13) are connected.

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