Silent tool claw of drilling and tapping tool magazine

Abstract

The utility model provides a mute type cutter claw of drilling and tapping tool magazine, including cutter claw seat, cutter claw main part and two cutter arm subassembly, one end of cutter claw main part is articulated on the cutter claw seat, the other end of cutter claw main part is equipped with cutter arm mounting plate, cutter arm subassembly includes buckle cutter arm and buckle cutter pin, the both side wall of cutter arm mounting plate is equipped with swing activity groove, the swing activity groove is equipped with the swing activity groove, the cutter claw main part is equipped with the swing activity groove. The tool buckling arms are hinged to the swing movable grooves, the tool buckling pins are fixedly connected to the inner side walls of the tool buckling arms, spherical ends are arranged at one ends of the tool buckling pins, a spring containing channel is arranged between the two swing movable grooves in a communicating mode, and a reset spring connected between one ends of the two tool buckling arms in an abutting mode is arranged in the spring containing channel. The tool buckling arm can be driven to overcome the elastic force of the reset spring to rotate with small force, so that the tool changing resistance is reduced, the tool changing noise is reduced, the tool changing efficiency is improved, the abrasion of the tool buckling pin and the tool can be reduced, and the service life of the tool magazine is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control tool magazines, and particularly to a silent tool claw of a drilling and tapping tool magazine. Background Art

[0002] A tool magazine system is a device used on a numerical control machine tool that can provide the tools required in the automated machining process and meet the need for automatic tool change. It includes an automatic tool change mechanism and a tool magazine that can store multiple tools, changing the traditional human-based production method. Controlled by a computer program, various different machining requirements, such as milling, drilling, boring, tapping, etc., can be completed, greatly shortening the machining time and reducing the production cost. This is the biggest feature of the tool magazine system.

[0003] The tool claw is an important component of the tool magazine and is used to hold the tool. In the tool magazines on the market, the two tool-holding pins of the tool claw move horizontally. During the process of loading or unloading the tool, the tool-holding pins need to overcome a large spring force to retract, which affects the tool change efficiency, increases the wear of the tool-holding pins and the tool, and there is a problem of large tool change noise, affecting the service life of the tool magazine. Summary of the Invention

[0004] The problem to be solved by the utility model is to provide a silent tool claw of a drilling and tapping tool magazine, which improves the tool change efficiency, reduces the tool change noise, and improves the service life of the tool magazine.

[0005] To solve the above technical problems, a silent tool claw of a drilling and tapping tool magazine provided by the utility model includes a tool claw seat, a tool claw body, and two tool arm assemblies. One end of the tool claw body is hinged to the tool claw seat, and a tool arm mounting plate is provided at the other end of the tool claw body. The tool arm assembly includes a tool-holding arm and a tool-holding pin. Swing movement grooves are provided on both side walls of the tool arm mounting plate. The tool-holding arm is hinged in the swing movement groove, and the tool-holding pin is fixedly connected to the inner side wall of the tool-holding arm. A spherical end is provided at one end of the tool-holding pin. A spring accommodation passage is communicatively provided between the two swing movement grooves, and a return spring that abuts between one ends of the two tool-holding arms is provided in the spring accommodation passage.

[0006] Preferably, a tool-holding head is provided at one end of the tool-holding arm. A limiting portion is provided on one end face of the tool-holding head. A limiting notch matching the limiting portion is provided on one end face of the tool arm mounting plate. A first pin hole communicating with the swing movement groove is provided through the tool arm mounting plate, and a second pin hole corresponding to the first pin hole is provided through the tool-holding arm. A pin is connected between the first pin hole and the second pin hole. A first annular groove is provided on the outer edge of one end of the pin, and a first snap ring is clamped on the first annular groove.

[0007] Preferably, a through hole is provided through the head of the retaining knife, and a T-shaped sleeve matching the through hole is arranged in the through hole. The inner circle of the T-shaped sleeve is arranged to match the retaining knife pin, and the retaining knife pin is inserted into the T-shaped sleeve. A second annular groove is provided on the outer edge of one end of the retaining knife pin, and a second snap spring is clamped on the second annular groove.

[0008] Preferably, a limiting post is provided on the inner side wall of one end of the retaining knife arm, and one end of the return spring is sleeved on the limiting post.

[0009] Preferably, a U-shaped knife clamping groove is provided at one end of the knife arm mounting plate, and a limiting plate is connected to the U-shaped knife clamping groove by screws.

[0010] The beneficial effects of the present utility model are as follows: The present utility model provides a silent tool claw for a drill-tap tool magazine. When changing tools, the tool is taken out from the tool claw body. When the tool contacts the spherical ends on both sides, the two retaining knife arms will swing outwards, and the return spring will be compressed. After the two retaining knife pins are disengaged from the tool, the tool can be taken out from the tool claw. Since the retaining knife arms are hinged on the swinging slot, according to the lever principle, the retaining knife arms can be set as labor-saving levers, that is, only a relatively small force is required to drive the retaining knife arms to rotate against the elastic force of the return spring, thereby reducing the tool change resistance, reducing the tool change noise, improving the tool change efficiency, reducing the wear of the retaining knife pins and the tool, and improving the service life of the tool magazine. Description of the Drawings

[0011] Figure 1 Illustrates the external structure schematic diagram of the present utility model.

[0012] Figure 2 Illustrates the cross-sectional view of the present utility model at the first angle.

[0013] Figure 3 Illustrates the cross-sectional view of the present utility model at the second angle.

[0014] Figure 4 Illustrates the exploded structure schematic diagram of the tool claw body and the knife arm assembly of the present utility model.

[0015] Explanation of the reference numerals in the drawings: tool claw base 1, tool claw body 2, knife arm mounting plate 20, U-shaped card slot 200, swinging slot 21, spring accommodation channel 22, limiting notch 23, first pin hole 24, knife arm assembly 3, retaining knife arm 30, second pin hole 300, limiting post 301, retaining knife pin 31, spherical end 310, second annular groove 311, return spring 32, retaining knife head 33, limiting part 330, through hole 331, pin 34, first annular groove 340, first snap spring 35, T-shaped sleeve 36, second snap spring 37, limiting plate 4. Detailed Implementation Modes

[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the following will clearly and completely describe the technical solutions of the embodiments of the present disclosure with reference to the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are some, but not all, of the embodiments of the present disclosure.

[0017] Based on the described embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present disclosure.

[0018] Reference Figures 1-4 。

[0019] The present utility model provides a silent type cutter claw for a drilling and tapping tool magazine, which includes a cutter claw seat 1, a cutter claw body 2, and two cutter arm assemblies 3. One end of the cutter claw body 2 is hinged to the cutter claw seat 1, and a cutter arm mounting plate 20 is provided at the other end of the cutter claw body 2. The cutter arm assembly 3 includes a cutter clamping arm 30 and a cutter clamping pin 31. Swing activity grooves 21 are provided on both side walls of the cutter arm mounting plate 20. The cutter clamping arm 30 is hinged in the swing activity groove 21. The cutter clamping pin 31 is fixedly connected to the inner side wall of the cutter clamping arm 30. A spherical end portion 310 is provided at one end of the cutter clamping pin 31. A spring accommodation channel 22 is communicated between the two swing activity grooves 21. A return spring 32 that abuts between one ends of the two cutter clamping arms 30 is provided in the spring accommodation channel 22.

[0020] The specific working principle is as follows: during tool change, the tool is removed from the cutter claw body 2. When the tool contacts the spherical end portions 310 on both sides, the two cutter clamping arms 30 will be driven to swing outwards, and the return spring 32 will be compressed. After the two cutter clamping pins 31 are disengaged from the tool, the tool can be removed from the cutter claw. Since the cutter clamping arm 30 is hinged in the swing activity groove 21, according to the lever principle, the cutter clamping arm 30 can be set as a labor-saving lever, that is, only a relatively small force is required to drive the cutter clamping arm 30 to rotate against the elastic force of the return spring 32, thereby reducing the tool change resistance, reducing the tool change noise, improving the tool change efficiency, reducing the wear of the cutter clamping pin and the tool, and improving the service life of the tool magazine.

[0021] Based on the above embodiments, a knife - clamping head 33 is provided at one end of the knife - clamping arm 30. A limiting portion 330 is provided on one end face of the knife - clamping head 33. A limiting notch 23 matching the limiting portion 330 is provided on one end face of the knife - arm mounting plate 20. A first pin hole 24 communicating with the swinging slot 21 is penetratingly provided on the knife - arm mounting plate 20. A second pin hole 300 corresponding to the first pin hole 24 is penetratingly provided on the knife - clamping arm 30. A pin 34 is connected between the first pin hole 24 and the second pin hole 300. A first annular groove 340 is provided on the outer edge of one end of the pin 34, and a first circlip 35 is clamped on the first annular groove 340, which is convenient for the disassembly and assembly of the pin 34. In order to set the knife - clamping arm 30 as a labor - saving lever, the power arm needs to be greater than the resistance arm, that is, the straight - line distance between the knife - clamping pin 31 and the pin 34 is greater than the straight - line distance between the end of the return spring 32 and the pin 34.

[0022] Based on the above embodiments, a through - hole 331 is penetratingly provided on the knife - clamping head 33. A T - shaped sleeve 36 matching the through - hole 331 is provided in the through - hole 331. The inner ring of the T - shaped sleeve 36 is matched with the knife - clamping pin 31. The knife - clamping pin 31 is inserted into the T - shaped sleeve 36. A second annular groove 311 is provided on the outer edge of one end of the knife - clamping pin 31, and a second circlip 37 is clamped on the second annular groove 311, which is convenient for the disassembly, replacement of the knife - clamping pin 31, and avoids the direct contact between the knife - clamping pin 31 and the through - hole 331, reducing the wear of the knife - clamping arm 30.

[0023] Based on the above embodiments, a limiting post 301 is provided on the inner side wall of one end of the knife - clamping arm 30. One end of the return spring 32 is sleeved on the limiting post 301, which can play a role in limiting the end of the return spring 32.

[0024] Based on the above embodiments, a U - shaped knife - clamping groove 200 is provided at one end of the knife - arm mounting plate 20. A limiting plate 4 is connected to the U - shaped knife - clamping groove 200 by screws. When the tool is clamped on the knife claws, the annular clamping groove on the tool will be clamped on the limiting plate 4, and the front end of the limiting plate 4 abuts against the annular clamping groove of the tool, which can play a role in limiting the tool and prevent the tool from shaking in the tool magazine.

[0025] The above - described embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary engineering and technical personnel in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A silent tool claw for a drilling and tapping tool magazine, characterized in that, It includes a knife claw seat, a knife claw body, and two knife arm assemblies. One end of the knife claw body is hinged to the knife claw seat, and a knife arm mounting plate is provided at the other end of the knife claw body. The knife arm assembly includes a knife clamping arm and a knife clamping pin. Swing activity grooves are provided on both side walls of the knife arm mounting plate. The knife clamping arm is hinged in the swing activity groove. The knife clamping pin is fixedly connected to the inner side wall of the knife clamping arm. A spherical end is provided at one end of the knife clamping pin. A spring accommodation channel is communicated between the two swing activity grooves, and a return spring that abuts between one ends of the two knife clamping arms is provided in the spring accommodation channel.

2. The silent tool claw of a drilling and tapping tool magazine according to claim 1, wherein A knife clamping head is provided at one end of the knife clamping arm. A limiting portion is provided on one end face of the knife clamping head. A limiting notch matching the limiting portion is provided on one end face of the knife arm mounting plate. A first pin hole communicating with the swing activity groove is penetrated through the knife arm mounting plate. A second pin hole corresponding to the first pin hole is penetrated through the knife clamping arm. A pin is connected between the first pin hole and the second pin hole. A first annular groove is provided on the outer edge of one end of the pin, and a first snap ring is clamped on the first annular groove.

3. The silent tool claw of a drilling and tapping tool magazine according to claim 2, wherein, A through hole is penetrated through the knife clamping head. A T-shaped sleeve matching the through hole is provided in the through hole. The inner circle of the T-shaped sleeve is matched with the knife clamping pin. The knife clamping pin is inserted into the T-shaped sleeve. A second annular groove is provided on the outer edge of one end of the knife clamping pin, and a second snap ring is clamped on the second annular groove.

4. The silent tool claw of a drilling and tapping tool magazine according to claim 3, characterized in that, A limiting column is provided on the inner side wall of one end of the knife clamping arm. One end of the return spring is sleeved on the limiting column.

5. The silent tool claw of a drilling and tapping tool magazine according to claim 4, characterized in that, A U-shaped knife clamping groove is provided at one end of the knife arm mounting plate, and a limiting plate is connected to the U-shaped knife clamping groove by screws.

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