Umbrella-shaped tool magazine without mechanical arm and capable of preventing tools from falling off

Abstract

The utility model provides an umbrella-shaped tool magazine without a mechanical arm and capable of preventing tools from falling, which relates to the technical field of tool magazines of machining centers and comprises a tool magazine mounting seat, a tool disc is arranged on the tool magazine mounting seat, a plurality of spring tool claw clamp structures are arranged on the tool disc, and a speed reducer is arranged at the bottom of the tool disc. A cutter head rotating driving motor is arranged at the bottom of the speed reducer, a cutter claw stop mechanism is arranged on the right side of the cutter head rotating driving motor, the spring cutter claw clamping structure comprises a clamping cutter claw, cutter claw fixing rotating pins are arranged on the two sides of the top of the clamping cutter claw, and two cutter claw springs are arranged in the clamping cutter claw; the overall dimension of the device is obviously reduced, the tool changing action of a machine tool is simpler, the service life of the tool magazine is effectively prolonged, the failure rate of the tool magazine is effectively increased due to the reduction of tool magazine mechanism parts, and the tool magazine can bear heavy tools due to the tool claw stop mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of tool magazines in mechanical processing centers, in particular to an umbrella-shaped tool magazine without a mechanical arm for preventing tools from falling off. Background Art

[0002] The tool magazine system is a device that provides tool storage and tool change requirements in the automated processing process. Its automatic tool change mechanism and tool magazine that can store multiple tools have changed the traditional human-centered production method. Through the control of computer programs, various processing requirements can be completed, such as milling, drilling, boring, tapping, etc., which greatly shortens the processing schedule and reduces production costs. This is the biggest feature of the tool magazine system.

[0003] The tool magazine system is an important part of the machining center. It mainly transfers the tools required for machining from the tool magazine to the spindle clamping mechanism. The structural characteristics of the tool clamping element and its connection method with the machine tool spindle will directly affect the machining performance of the machine tool. The tool magazine structure and the working method of the tool exchange device will affect the tool change efficiency of the machine tool. The complexity of the tool change system itself and related structures will have a direct impact on the cost of the whole machine. The cam plus tool arm tool change mechanism is widely used in the automatic tool change system of the machining center.

[0004] Due to the space limitation of machine tools, the tool magazine needs to be installed in a smaller space. However, the existing tool magazine is too large to be installed in a machine tool with a smaller space. Therefore, we propose an umbrella-shaped tool magazine without a robot arm to prevent the tool from falling. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art. Due to the space limitation of the machine tool, the tool magazine needs to be installed in a smaller space, but the existing tool magazine is large in size and cannot be installed in the machine tool in a smaller space.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An umbrella-shaped tool magazine for preventing knife dropping without a mechanical arm comprises a tool magazine mounting seat, a tool disc is arranged on the tool magazine mounting seat, a plurality of spring knife claw clamp structures are arranged on the tool disc, a reducer is arranged at the bottom of the tool disc, a knife disc rotation drive motor is arranged at the bottom of the reducer, and a knife claw stop mechanism is arranged on the right side of the knife disc rotation drive motor;

[0008] The spring knife claw clamp structure comprises a clamping knife claw, both sides of the top of the clamping knife claw are provided with knife claw fixing rotating pins, and two knife claw springs are provided inside the clamping knife claw;

[0009] The knife claw stopping mechanism comprises a cylinder fixing bracket, a stopping cylinder is arranged at the bottom of the cylinder fixing bracket, a stopping spring is arranged at the right side of the stopping cylinder, and a stopping pin is arranged at the bottom of the stopping spring.

[0010] As a preferred solution of the utility model, a main shaft is provided on the right side of the cutter disc, and a cutter is provided at the bottom of the main shaft.

[0011] As a preferred solution of the utility model, the knife is used in coordination with a spring knife claw clamp structure.

[0012] The technical effect of adopting the above further solution is that the spring knife claw clamp structure can directly clamp and fix the tool piece.

[0013] As a preferred solution of the utility model, the reducer is transmission-connected to the cutter disc rotation drive motor.

[0014] The technical effect of adopting the above-mentioned further scheme is: the inner ring of the reducer is fixed to the tool magazine mounting seat, the drive motor is installed on the inner ring of the reducer, the rotation of the outer ring of the high-precision reducer is accurately controlled by the drive motor, and the cutter disc is fixed to the outer ring of the reducer, thereby driving the cutter disc to rotate.

[0015] As a preferred solution of the utility model, the knife claw stopping mechanism and the spring knife claw clamping structure are connected via a stopping pin.

[0016] As a preferred solution of the utility model, the cutter disc is fixedly connected to the output shaft of the reducer.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model significantly reduces the size of the device, makes the tool changing action of the machine tool simpler, reduces the parts of the tool magazine mechanism, effectively improves the service life and failure rate of the tool magazine, and enables the tool magazine to withstand the use of heavy tools, making the machine tool more competitive in the market. The original tool sleeve fixing tool structure is changed, and the tool sleeve fixing tool structure is designed as a spring tool claw clamping structure. At the same time, the original tool arm type tool changing mechanism is removed, and the tool magazine is installed vertically to the spindle, and the spindle tool is directly clamped into the spring tool claw clamping mechanism to complete the tool changing action, which effectively and significantly reduces the size of the tool magazine. When the cutter disc rotates, a tool claw stopping mechanism is designed to prevent the tool from falling off in view of the risk of heavy tools falling off in the spring tool claw clamping structure, thereby avoiding the problem that the tool magazine needs to be installed in a smaller space due to space limitations of the machine tool, but the existing tool magazine is large in size and cannot be installed in a machine tool in a smaller space. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1A schematic diagram of the main structure of an umbrella-shaped tool magazine without a mechanical arm to prevent tool drop provided by the utility model;

[0020] Figure 2 A schematic front view of an umbrella-shaped tool magazine for preventing tool drop without a mechanical arm provided by the utility model;

[0021] Figure 3 A schematic diagram of a spring knife claw clamp structure of an umbrella-shaped tool magazine for preventing knife dropping without a mechanical arm provided by the utility model;

[0022] Figure 4 A schematic diagram of a knife claw stopping mechanism of an umbrella-shaped tool magazine without a mechanical arm to prevent knife dropping provided by the utility model;

[0023] Figure 5 A schematic diagram of a tool and a spring tool claw clamp structure of an umbrella-shaped tool magazine without a mechanical arm to prevent tool drop provided by the utility model;

[0024] Figure 6 A schematic diagram of pulling out a stop pin of an umbrella-shaped tool magazine without a mechanical arm to prevent tool drop provided by the utility model;

[0025] Figure 7 The utility model provides a schematic diagram of the process of inserting a stop pin and pushing down a stop spring of an umbrella-shaped tool magazine for preventing tool drop without a mechanical arm.

[0026] Legend: 1. Tool magazine mounting seat; 2. Tool disc; 3. Spring knife claw clamping structure; 301. Clamping knife claw; 302. Knife claw fixing rotating pin; 303. Knife claw spring; 4. Speed ​​reducer; 5. Knife disc rotating drive motor; 6. Knife claw stopping mechanism; 601. Cylinder fixing bracket; 602. Stop cylinder; 603. Stop spring; 604. Stop pin; 7. Spindle; 8. Tool. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with 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.

[0028] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant literature, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0029] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0031] Example 1

[0032] like Figure 1-7 As shown, the utility model provides a technical solution: an umbrella-shaped tool magazine without a mechanical arm to prevent the knife from falling, comprising a tool magazine mounting seat 1, a tool disc 2 is arranged on the tool magazine mounting seat 1, a plurality of spring knife claw clamping structures 3 are arranged on the knife disc 2, a reducer 4 is arranged at the bottom of the knife disc 2, a knife disc rotation drive motor 5 is arranged at the bottom of the reducer 4, a knife claw stopping mechanism 6 is arranged on the right side of the knife disc rotation drive motor 5, the spring knife claw clamping structure 3 comprises a clamping knife claw 301, knife claw fixing rotating pins 302 are arranged on both sides of the top of the clamping knife claw 301, two knife claw springs 303 are arranged inside the clamping knife claw 301, and the knife claw stopping mechanism 6 comprises a cylinder fixing bracket 601, a stopping cylinder 602 is arranged at the bottom of the cylinder fixing bracket 601, and the right side of the stopping cylinder 602 A stop spring 603 is provided, and a stop pin 604 is provided at the bottom of the stop spring 603, which changes the original structure of the tool sleeve fixing the tool 8, and designs the tool sleeve fixing the tool 8 structure as a spring knife claw clamping structure. At the same time, the original knife arm type tool changing mechanism is removed, and the tool magazine is installed vertically to the spindle 7, and the spindle 7 tool 8 is directly clamped into the spring knife claw clamping mechanism to complete the tool changing action, which effectively and greatly reduces the external dimensions of the tool magazine. When the cutter disc 2 rotates, a knife claw stop mechanism 6 is designed to prevent the tool from falling off in view of the risk of heavy tools 8 falling off due to the spring knife claw clamping structure, thereby avoiding the problem that the tool magazine needs to be installed in a smaller space due to space limitations of the machine tool, but the existing tool magazine is large in size and cannot be installed in a machine tool with a smaller space.

[0033] Example 2

[0034] like Figure 1-7As shown, the utility model provides a technical solution: a main shaft 7 is provided on the right side of the cutter disc 2, and a tool 8 is provided at the bottom of the main shaft 7. The cutter 8 is used in conjunction with a spring knife claw clamp structure 3, and the spring knife claw clamp structure 3 can directly clamp and fix the tool 8. The reducer 4 is connected to the cutter disc rotation drive motor 5 by transmission, the inner ring of the reducer 4 is fixed to the tool magazine mounting seat 1, and the drive motor is installed on the inner ring of the reducer 4. The outer ring of the high-precision reducer 4 is accurately controlled to rotate by the drive motor, and the cutter disc 2 is fixed to the outer ring of the reducer 4, which can drive the cutter disc 2 to rotate. The knife claw stopping mechanism 6 is connected to the spring knife claw clamp structure 3 through a stopping pin 604, and the cutter disc 2 is fixedly connected to the output shaft of the reducer 4.

[0035] The working process of the utility model is as follows: when using an umbrella-shaped tool magazine without a mechanical arm to prevent the knife from falling, first, the spring knife claw clamping mechanism is fixed to the knife disc 2, the knife disc 2 is fixed to the outer ring of the reducer 4, the knife claw stopping mechanism 6 is fixed to the inner ring of the reducer 4, the inner ring of the reducer 4 is fixed to the tool magazine mounting seat 1, the driving motor is installed on the inner ring of the reducer 4, the servo motor accurately controls the rotation of the high-precision reducer 4 outer ring, the reducer 4 outer ring drives the knife disc 2 to rotate, and the other parts are fixed, so as to ensure the positioning accuracy of the rotation of the knife disc 2, the tool 8 is clamped and fixed by the spring knife claw clamping mechanism, the knife claw spring 303 controls the clamping claw 301 to maintain the inner clamping state, the clamping claw 301 opens automatically when force is applied, and the tool 8 and the clamping claw 301 are in a horizontal state. When the tool disc 2 stops changing, the stop cylinder 602 is retracted to disengage the stop pin 604 from the clamping claw 301, and the clamping claw 301 resumes its rotatable state. At this time, the tool 8 can be directly clamped horizontally by the clamping claw 301 by controlling the stop cylinder 602 to extend. The stop spring 603 causes the stop pin 604 to be inserted into the upper limit hole of the clamping claw 301, so that the clamping claw 301 cannot be opened even after being stressed, thereby making the clamping claw 301 firmly clamp the tool 8, thereby eliminating the risk of heavy tools 8 falling off due to excessive inertia during the rotation of the cutter disc 2. When the cutter disc 2 stops changing, the stop cylinder 602 is retracted to disengage the stop pin 604 from the clamping claw 301, and the clamping claw 301 resumes its rotatable state. At this time, the tool 8 can be directly pulled out horizontally by the spindle 7.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An umbrella-shaped tool magazine without a mechanical arm to prevent tool drop, comprising a tool magazine mounting seat (1), characterized in that: The tool magazine mounting seat (1) is provided with a knife disc (2), the knife disc (2) is provided with a plurality of spring knife claw clamp structures (3), a reducer (4) is provided at the bottom of the knife disc (2), a knife disc rotation drive motor (5) is provided at the bottom of the reducer (4), and a knife claw stop mechanism (6) is provided on the right side of the knife disc rotation drive motor (5); The spring knife claw clamp structure (3) comprises a knife claw (301), knife claw fixing rotating pins (302) are provided on both sides of the top of the knife claw (301), and two knife claw springs (303) are provided inside the knife claw (301); The knife claw stopping mechanism (6) comprises a cylinder fixing bracket (601), a stopping cylinder (602) is provided at the bottom of the cylinder fixing bracket (601), a stopping spring (603) is provided on the right side of the stopping cylinder (602), and a stopping latch (604) is provided at the bottom of the stopping spring (603).

2. The umbrella-shaped tool magazine without a mechanical arm to prevent tool drop according to claim 1 is characterized by: A main shaft (7) is provided on the right side of the cutter disc (2), and a cutter (8) is provided at the bottom of the main shaft (7).

3. The umbrella-shaped tool magazine without a mechanical arm to prevent tool drop according to claim 2, characterized in that: The knife (8) is used in coordination with the spring knife claw clamp structure (3).

4. The umbrella-shaped tool magazine without a mechanical arm to prevent tool drop according to claim 1, characterized in that: The reducer (4) is transmission-connected to the cutter disc rotation drive motor (5).

5. The umbrella-shaped tool magazine without a mechanical arm to prevent tool drop according to claim 1, characterized in that: The knife claw stopping mechanism (6) is connected to the spring knife claw clamp structure (3) via a stopping pin (604).

6. The umbrella-shaped tool magazine without a mechanical arm to prevent tool drop according to claim 1, characterized in that: The cutter disc (2) is fixedly connected to the output shaft of the reducer (4).

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